1: # The LearningOnline Network with CAPA
2: # a pile of common routines
3: #
4: # $Id: loncommon.pm,v 1.672 2008/07/23 10:07:25 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: # Makes a table out of the previous attempts
30: # Inputs result_from_symbread, user, domain, course_id
31: # Reads in non-network-related .tab files
32:
33: # POD header:
34:
35: =pod
36:
37: =head1 NAME
38:
39: Apache::loncommon - pile of common routines
40:
41: =head1 SYNOPSIS
42:
43: Common routines for manipulating connections, student answers,
44: domains, common Javascript fragments, etc.
45:
46: =head1 OVERVIEW
47:
48: A collection of commonly used subroutines that don't have a natural
49: home anywhere else. This collection helps remove
50: redundancy from other modules and increase efficiency of memory usage.
51:
52: =cut
53:
54: # End of POD header
55: package Apache::loncommon;
56:
57: use strict;
58: use Apache::lonnet;
59: use GDBM_File;
60: use POSIX qw(strftime mktime);
61: use Apache::lonmenu();
62: use Apache::lonenc();
63: use Apache::lonlocal;
64: use HTML::Entities;
65: use Apache::lonhtmlcommon();
66: use Apache::loncoursedata();
67: use Apache::lontexconvert();
68: use Apache::lonclonecourse();
69: use LONCAPA qw(:DEFAULT :match);
70: use DateTime::TimeZone;
71:
72: # ---------------------------------------------- Designs
73: use vars qw(%defaultdesign);
74:
75: my $readit;
76:
77:
78: ##
79: ## Global Variables
80: ##
81:
82:
83: # ----------------------------------------------- SSI with retries:
84: #
85:
86: =pod
87:
88: =head1 Server Side include with retries:
89:
90: =over 4
91:
92: =item * &ssi_with_retries(resource,retries form)
93:
94: Performs an ssi with some number of retries. Retries continue either
95: until the result is ok or until the retry count supplied by the
96: caller is exhausted.
97:
98: Inputs:
99:
100: =over 4
101:
102: resource - Identifies the resource to insert.
103:
104: retries - Count of the number of retries allowed.
105:
106: form - Hash that identifies the rendering options.
107:
108: =back
109:
110: Returns:
111:
112: =over 4
113:
114: content - The content of the response. If retries were exhausted this is empty.
115:
116: response - The response from the last attempt (which may or may not have been successful.
117:
118: =back
119:
120: =back
121:
122: =cut
123:
124: sub ssi_with_retries {
125: my ($resource, $retries, %form) = @_;
126:
127:
128: my $ok = 0; # True if we got a good response.
129: my $content;
130: my $response;
131:
132: # Try to get the ssi done. within the retries count:
133:
134: do {
135: ($content, $response) = &Apache::lonnet::ssi($resource, %form);
136: $ok = $response->is_success;
137: if (!$ok) {
138: &Apache::lonnet::logthis("Failed ssi_with_retries on $resource: ".$response->is_success.', '.$response->code.', '.$response->message);
139: }
140: $retries--;
141: } while (!$ok && ($retries > 0));
142:
143: if (!$ok) {
144: $content = ''; # On error return an empty content.
145: }
146: return ($content, $response);
147:
148: }
149:
150:
151:
152: # ----------------------------------------------- Filetypes/Languages/Copyright
153: my %language;
154: my %supported_language;
155: my %cprtag;
156: my %scprtag;
157: my %fe; my %fd; my %fm;
158: my %category_extensions;
159:
160: # ---------------------------------------------- Thesaurus variables
161: #
162: # %Keywords:
163: # A hash used by &keyword to determine if a word is considered a keyword.
164: # $thesaurus_db_file
165: # Scalar containing the full path to the thesaurus database.
166:
167: my %Keywords;
168: my $thesaurus_db_file;
169:
170: #
171: # Initialize values from language.tab, copyright.tab, filetypes.tab,
172: # thesaurus.tab, and filecategories.tab.
173: #
174: BEGIN {
175: # Variable initialization
176: $thesaurus_db_file = $Apache::lonnet::perlvar{'lonTabDir'}."/thesaurus.db";
177: #
178: unless ($readit) {
179: # ------------------------------------------------------------------- languages
180: {
181: my $langtabfile = $Apache::lonnet::perlvar{'lonTabDir'}.
182: '/language.tab';
183: if ( open(my $fh,"<$langtabfile") ) {
184: while (my $line = <$fh>) {
185: next if ($line=~/^\#/);
186: chomp($line);
187: my ($key,$two,$country,$three,$enc,$val,$sup)=(split(/\t/,$line));
188: $language{$key}=$val.' - '.$enc;
189: if ($sup) {
190: $supported_language{$key}=$sup;
191: }
192: }
193: close($fh);
194: }
195: }
196: # ------------------------------------------------------------------ copyrights
197: {
198: my $copyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
199: '/copyright.tab';
200: if ( open (my $fh,"<$copyrightfile") ) {
201: while (my $line = <$fh>) {
202: next if ($line=~/^\#/);
203: chomp($line);
204: my ($key,$val)=(split(/\s+/,$line,2));
205: $cprtag{$key}=$val;
206: }
207: close($fh);
208: }
209: }
210: # ----------------------------------------------------------- source copyrights
211: {
212: my $sourcecopyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
213: '/source_copyright.tab';
214: if ( open (my $fh,"<$sourcecopyrightfile") ) {
215: while (my $line = <$fh>) {
216: next if ($line =~ /^\#/);
217: chomp($line);
218: my ($key,$val)=(split(/\s+/,$line,2));
219: $scprtag{$key}=$val;
220: }
221: close($fh);
222: }
223: }
224:
225: # -------------------------------------------------------------- default domain designs
226: my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors';
227: my $designfile = $designdir.'/default.tab';
228: if ( open (my $fh,"<$designfile") ) {
229: while (my $line = <$fh>) {
230: next if ($line =~ /^\#/);
231: chomp($line);
232: my ($key,$val)=(split(/\=/,$line));
233: if ($val) { $defaultdesign{$key}=$val; }
234: }
235: close($fh);
236: }
237:
238: # ------------------------------------------------------------- file categories
239: {
240: my $categoryfile = $Apache::lonnet::perlvar{'lonTabDir'}.
241: '/filecategories.tab';
242: if ( open (my $fh,"<$categoryfile") ) {
243: while (my $line = <$fh>) {
244: next if ($line =~ /^\#/);
245: chomp($line);
246: my ($extension,$category)=(split(/\s+/,$line,2));
247: push @{$category_extensions{lc($category)}},$extension;
248: }
249: close($fh);
250: }
251:
252: }
253: # ------------------------------------------------------------------ file types
254: {
255: my $typesfile = $Apache::lonnet::perlvar{'lonTabDir'}.
256: '/filetypes.tab';
257: if ( open (my $fh,"<$typesfile") ) {
258: while (my $line = <$fh>) {
259: next if ($line =~ /^\#/);
260: chomp($line);
261: my ($ending,$emb,$mime,$descr)=split(/\s+/,$line,4);
262: if ($descr ne '') {
263: $fe{$ending}=lc($emb);
264: $fd{$ending}=$descr;
265: if ($mime ne 'unk') { $fm{$ending}=$mime; }
266: }
267: }
268: close($fh);
269: }
270: }
271: &Apache::lonnet::logthis(
272: "<font color=yellow>INFO: Read file types</font>");
273: $readit=1;
274: } # end of unless($readit)
275:
276: }
277:
278: ###############################################################
279: ## HTML and Javascript Helper Functions ##
280: ###############################################################
281:
282: =pod
283:
284: =head1 HTML and Javascript Functions
285:
286: =over 4
287:
288: =item * &browser_and_searcher_javascript()
289:
290: X<browsing, javascript>X<searching, javascript>Returns a string
291: containing javascript with two functions, C<openbrowser> and
292: C<opensearcher>. Returned string does not contain E<lt>scriptE<gt>
293: tags.
294:
295: =item * &openbrowser(formname,elementname,only,omit) [javascript]
296:
297: inputs: formname, elementname, only, omit
298:
299: formname and elementname indicate the name of the html form and name of
300: the element that the results of the browsing selection are to be placed in.
301:
302: Specifying 'only' will restrict the browser to displaying only files
303: with the given extension. Can be a comma separated list.
304:
305: Specifying 'omit' will restrict the browser to NOT displaying files
306: with the given extension. Can be a comma separated list.
307:
308: =item * &opensearcher(formname,elementname) [javascript]
309:
310: Inputs: formname, elementname
311:
312: formname and elementname specify the name of the html form and the name
313: of the element the selection from the search results will be placed in.
314:
315: =cut
316:
317: sub browser_and_searcher_javascript {
318: my ($mode)=@_;
319: if (!defined($mode)) { $mode='edit'; }
320: my $resurl=&escape_single(&lastresurl());
321: return <<END;
322: // <!-- BEGIN LON-CAPA Internal
323: var editbrowser = null;
324: function openbrowser(formname,elementname,only,omit,titleelement) {
325: var url = '$resurl/?';
326: if (editbrowser == null) {
327: url += 'launch=1&';
328: }
329: url += 'catalogmode=interactive&';
330: url += 'mode=$mode&';
331: url += 'inhibitmenu=yes&';
332: url += 'form=' + formname + '&';
333: if (only != null) {
334: url += 'only=' + only + '&';
335: } else {
336: url += 'only=&';
337: }
338: if (omit != null) {
339: url += 'omit=' + omit + '&';
340: } else {
341: url += 'omit=&';
342: }
343: if (titleelement != null) {
344: url += 'titleelement=' + titleelement + '&';
345: } else {
346: url += 'titleelement=&';
347: }
348: url += 'element=' + elementname + '';
349: var title = 'Browser';
350: var options = 'scrollbars=1,resizable=1,menubar=0,toolbar=1,location=1';
351: options += ',width=700,height=600';
352: editbrowser = open(url,title,options,'1');
353: editbrowser.focus();
354: }
355: var editsearcher;
356: function opensearcher(formname,elementname,titleelement) {
357: var url = '/adm/searchcat?';
358: if (editsearcher == null) {
359: url += 'launch=1&';
360: }
361: url += 'catalogmode=interactive&';
362: url += 'mode=$mode&';
363: url += 'form=' + formname + '&';
364: if (titleelement != null) {
365: url += 'titleelement=' + titleelement + '&';
366: } else {
367: url += 'titleelement=&';
368: }
369: url += 'element=' + elementname + '';
370: var title = 'Search';
371: var options = 'scrollbars=1,resizable=1,menubar=0,toolbar=1,location=1';
372: options += ',width=700,height=600';
373: editsearcher = open(url,title,options,'1');
374: editsearcher.focus();
375: }
376: // END LON-CAPA Internal -->
377: END
378: }
379:
380: sub lastresurl {
381: if ($env{'environment.lastresurl'}) {
382: return $env{'environment.lastresurl'}
383: } else {
384: return '/res';
385: }
386: }
387:
388: sub storeresurl {
389: my $resurl=&Apache::lonnet::clutter(shift);
390: unless ($resurl=~/^\/res/) { return 0; }
391: $resurl=~s/\/$//;
392: &Apache::lonnet::put('environment',{'lastresurl' => $resurl});
393: &Apache::lonnet::appenv({'environment.lastresurl' => $resurl});
394: return 1;
395: }
396:
397: sub studentbrowser_javascript {
398: unless (
399: (($env{'request.course.id'}) &&
400: (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
401: || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
402: '/'.$env{'request.course.sec'})
403: ))
404: || ($env{'request.role'}=~/^(au|dc|su)/)
405: ) { return ''; }
406: return (<<'ENDSTDBRW');
407: <script type="text/javascript" language="Javascript" >
408: var stdeditbrowser;
409: function openstdbrowser(formname,uname,udom,roleflag,ignorefilter) {
410: var url = '/adm/pickstudent?';
411: var filter;
412: if (!ignorefilter) {
413: eval('filter=document.'+formname+'.'+uname+'.value;');
414: }
415: if (filter != null) {
416: if (filter != '') {
417: url += 'filter='+filter+'&';
418: }
419: }
420: url += 'form=' + formname + '&unameelement='+uname+
421: '&udomelement='+udom;
422: if (roleflag) { url+="&roles=1"; }
423: var title = 'Student_Browser';
424: var options = 'scrollbars=1,resizable=1,menubar=0';
425: options += ',width=700,height=600';
426: stdeditbrowser = open(url,title,options,'1');
427: stdeditbrowser.focus();
428: }
429: </script>
430: ENDSTDBRW
431: }
432:
433: sub selectstudent_link {
434: my ($form,$unameele,$udomele)=@_;
435: if ($env{'request.course.id'}) {
436: if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
437: && !&Apache::lonnet::allowed('srm',$env{'request.course.id'}.
438: '/'.$env{'request.course.sec'})) {
439: return '';
440: }
441: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
442: '","'.$udomele.'");'."'>".&mt('Select User')."</a>";
443: }
444: if ($env{'request.role'}=~/^(au|dc|su)/) {
445: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
446: '","'.$udomele.'",1);'."'>".&mt('Select User')."</a>";
447: }
448: return '';
449: }
450:
451: sub authorbrowser_javascript {
452: return <<"ENDAUTHORBRW";
453: <script type="text/javascript">
454: var stdeditbrowser;
455:
456: function openauthorbrowser(formname,udom) {
457: var url = '/adm/pickauthor?';
458: url += 'form='+formname+'&roledom='+udom;
459: var title = 'Author_Browser';
460: var options = 'scrollbars=1,resizable=1,menubar=0';
461: options += ',width=700,height=600';
462: stdeditbrowser = open(url,title,options,'1');
463: stdeditbrowser.focus();
464: }
465:
466: </script>
467: ENDAUTHORBRW
468: }
469:
470: sub coursebrowser_javascript {
471: my ($domainfilter,$sec_element,$formname)=@_;
472: my $crs_or_grp_alert = &mt('Please select the type of LON-CAPA entity - Course or Group - for which you wish to add/modify a user role');
473: my $output = '
474: <script type="text/javascript">
475: var stdeditbrowser;'."\n";
476: $output .= <<"ENDSTDBRW";
477: function opencrsbrowser(formname,uname,udom,desc,extra_element,multflag,crstype) {
478: var url = '/adm/pickcourse?';
479: var domainfilter = '';
480: var formid = getFormIdByName(formname);
481: if (formid > -1) {
482: var domid = getIndexByName(formid,udom);
483: if (domid > -1) {
484: if (document.forms[formid].elements[domid].type == 'select-one') {
485: domainfilter=document.forms[formid].elements[domid].options[document.forms[formid].elements[domid].selectedIndex].value;
486: }
487: if (document.forms[formid].elements[domid].type == 'hidden') {
488: domainfilter=document.forms[formid].elements[domid].value;
489: }
490: }
491: }
492: if (domainfilter != null) {
493: if (domainfilter != '') {
494: url += 'domainfilter='+domainfilter+'&';
495: }
496: }
497: url += 'form=' + formname + '&cnumelement='+uname+
498: '&cdomelement='+udom+
499: '&cnameelement='+desc;
500: if (extra_element !=null && extra_element != '') {
501: if (formname == 'rolechoice' || formname == 'studentform') {
502: url += '&roleelement='+extra_element;
503: if (domainfilter == null || domainfilter == '') {
504: url += '&domainfilter='+extra_element;
505: }
506: }
507: else {
508: if (formname == 'portform') {
509: url += '&setroles='+extra_element;
510: }
511: }
512: }
513: if (multflag !=null && multflag != '') {
514: url += '&multiple='+multflag;
515: }
516: if (crstype == 'Course/Group') {
517: if (formname == 'cu') {
518: crstype = document.cu.crstype.options[document.cu.crstype.selectedIndex].value;
519: if (crstype == "") {
520: alert("$crs_or_grp_alert");
521: return;
522: }
523: }
524: }
525: if (crstype !=null && crstype != '') {
526: url += '&type='+crstype;
527: }
528: var title = 'Course_Browser';
529: var options = 'scrollbars=1,resizable=1,menubar=0';
530: options += ',width=700,height=600';
531: stdeditbrowser = open(url,title,options,'1');
532: stdeditbrowser.focus();
533: }
534:
535: function getFormIdByName(formname) {
536: for (var i=0;i<document.forms.length;i++) {
537: if (document.forms[i].name == formname) {
538: return i;
539: }
540: }
541: return -1;
542: }
543:
544: function getIndexByName(formid,item) {
545: for (var i=0;i<document.forms[formid].elements.length;i++) {
546: if (document.forms[formid].elements[i].name == item) {
547: return i;
548: }
549: }
550: return -1;
551: }
552: ENDSTDBRW
553: if ($sec_element ne '') {
554: $output .= &setsec_javascript($sec_element,$formname);
555: }
556: $output .= '
557: </script>';
558: return $output;
559: }
560:
561: sub setsec_javascript {
562: my ($sec_element,$formname) = @_;
563: my $setsections = qq|
564: function setSect(sectionlist) {
565: var sectionsArray = new Array();
566: if ((sectionlist != '') && (typeof sectionlist != "undefined")) {
567: sectionsArray = sectionlist.split(",");
568: }
569: var numSections = sectionsArray.length;
570: document.$formname.$sec_element.length = 0;
571: if (numSections == 0) {
572: document.$formname.$sec_element.multiple=false;
573: document.$formname.$sec_element.size=1;
574: document.$formname.$sec_element.options[0] = new Option('No existing sections','',false,false)
575: } else {
576: if (numSections == 1) {
577: document.$formname.$sec_element.multiple=false;
578: document.$formname.$sec_element.size=1;
579: document.$formname.$sec_element.options[0] = new Option('Select','',true,true);
580: document.$formname.$sec_element.options[1] = new Option('No section','',false,false)
581: document.$formname.$sec_element.options[2] = new Option(sectionsArray[0],sectionsArray[0],false,false);
582: } else {
583: for (var i=0; i<numSections; i++) {
584: document.$formname.$sec_element.options[i] = new Option(sectionsArray[i],sectionsArray[i],false,false)
585: }
586: document.$formname.$sec_element.multiple=true
587: if (numSections < 3) {
588: document.$formname.$sec_element.size=numSections;
589: } else {
590: document.$formname.$sec_element.size=3;
591: }
592: document.$formname.$sec_element.options[0].selected = false
593: }
594: }
595: }
596: |;
597: return $setsections;
598: }
599:
600:
601: sub selectcourse_link {
602: my ($form,$unameele,$udomele,$desc,$extra_element,$multflag,$selecttype)=@_;
603: return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele.
604: '","'.$udomele.'","'.$desc.'","'.$extra_element.'","'.$multflag.'","'.$selecttype.'");'."'>".&mt('Select Course')."</a>";
605: }
606:
607: sub selectauthor_link {
608: my ($form,$udom)=@_;
609: return '<a href="javascript:openauthorbrowser('."'$form','$udom'".');">'.
610: &mt('Select Author').'</a>';
611: }
612:
613: sub check_uncheck_jscript {
614: my $jscript = <<"ENDSCRT";
615: function checkAll(field) {
616: if (field.length > 0) {
617: for (i = 0; i < field.length; i++) {
618: field[i].checked = true ;
619: }
620: } else {
621: field.checked = true
622: }
623: }
624:
625: function uncheckAll(field) {
626: if (field.length > 0) {
627: for (i = 0; i < field.length; i++) {
628: field[i].checked = false ;
629: }
630: } else {
631: field.checked = false ;
632: }
633: }
634: ENDSCRT
635: return $jscript;
636: }
637:
638: sub select_timezone {
639: my ($name,$selected,$onchange,$includeempty)=@_;
640: my $output='<select name="'.$name.'" '.$onchange.'>'."\n";
641: if ($includeempty) {
642: $output .= '<option value=""';
643: if (($selected eq '') || ($selected eq 'local')) {
644: $output .= ' selected="selected" ';
645: }
646: $output .= '> </option>';
647: }
648: my @timezones = DateTime::TimeZone->all_names;
649: foreach my $tzone (@timezones) {
650: $output.= '<option value="'.$tzone.'"';
651: if ($tzone eq $selected) {
652: $output.=' selected="selected"';
653: }
654: $output.=">$tzone</option>\n";
655: }
656: $output.="</select>";
657: return $output;
658: }
659:
660: =pod
661:
662: =item * &linked_select_forms(...)
663:
664: linked_select_forms returns a string containing a <script></script> block
665: and html for two <select> menus. The select menus will be linked in that
666: changing the value of the first menu will result in new values being placed
667: in the second menu. The values in the select menu will appear in alphabetical
668: order unless a defined order is provided.
669:
670: linked_select_forms takes the following ordered inputs:
671:
672: =over 4
673:
674: =item * $formname, the name of the <form> tag
675:
676: =item * $middletext, the text which appears between the <select> tags
677:
678: =item * $firstdefault, the default value for the first menu
679:
680: =item * $firstselectname, the name of the first <select> tag
681:
682: =item * $secondselectname, the name of the second <select> tag
683:
684: =item * $hashref, a reference to a hash containing the data for the menus.
685:
686: =item * $menuorder, the order of values in the first menu
687:
688: =back
689:
690: Below is an example of such a hash. Only the 'text', 'default', and
691: 'select2' keys must appear as stated. keys(%menu) are the possible
692: values for the first select menu. The text that coincides with the
693: first menu value is given in $menu{$choice1}->{'text'}. The values
694: and text for the second menu are given in the hash pointed to by
695: $menu{$choice1}->{'select2'}.
696:
697: my %menu = ( A1 => { text =>"Choice A1" ,
698: default => "B3",
699: select2 => {
700: B1 => "Choice B1",
701: B2 => "Choice B2",
702: B3 => "Choice B3",
703: B4 => "Choice B4"
704: },
705: order => ['B4','B3','B1','B2'],
706: },
707: A2 => { text =>"Choice A2" ,
708: default => "C2",
709: select2 => {
710: C1 => "Choice C1",
711: C2 => "Choice C2",
712: C3 => "Choice C3"
713: },
714: order => ['C2','C1','C3'],
715: },
716: A3 => { text =>"Choice A3" ,
717: default => "D6",
718: select2 => {
719: D1 => "Choice D1",
720: D2 => "Choice D2",
721: D3 => "Choice D3",
722: D4 => "Choice D4",
723: D5 => "Choice D5",
724: D6 => "Choice D6",
725: D7 => "Choice D7"
726: },
727: order => ['D4','D3','D2','D1','D7','D6','D5'],
728: }
729: );
730:
731: =cut
732:
733: sub linked_select_forms {
734: my ($formname,
735: $middletext,
736: $firstdefault,
737: $firstselectname,
738: $secondselectname,
739: $hashref,
740: $menuorder,
741: ) = @_;
742: my $second = "document.$formname.$secondselectname";
743: my $first = "document.$formname.$firstselectname";
744: # output the javascript to do the changing
745: my $result = '';
746: $result.="<script type=\"text/javascript\">\n";
747: $result.="var select2data = new Object();\n";
748: $" = '","';
749: my $debug = '';
750: foreach my $s1 (sort(keys(%$hashref))) {
751: $result.="select2data.d_$s1 = new Object();\n";
752: $result.="select2data.d_$s1.def = new String('".
753: $hashref->{$s1}->{'default'}."');\n";
754: $result.="select2data.d_$s1.values = new Array(";
755: my @s2values = sort(keys( %{ $hashref->{$s1}->{'select2'} } ));
756: if (ref($hashref->{$s1}->{'order'}) eq 'ARRAY') {
757: @s2values = @{$hashref->{$s1}->{'order'}};
758: }
759: $result.="\"@s2values\");\n";
760: $result.="select2data.d_$s1.texts = new Array(";
761: my @s2texts;
762: foreach my $value (@s2values) {
763: push @s2texts, $hashref->{$s1}->{'select2'}->{$value};
764: }
765: $result.="\"@s2texts\");\n";
766: }
767: $"=' ';
768: $result.= <<"END";
769:
770: function select1_changed() {
771: // Determine new choice
772: var newvalue = "d_" + $first.value;
773: // update select2
774: var values = select2data[newvalue].values;
775: var texts = select2data[newvalue].texts;
776: var select2def = select2data[newvalue].def;
777: var i;
778: // out with the old
779: for (i = 0; i < $second.options.length; i++) {
780: $second.options[i] = null;
781: }
782: // in with the nuclear
783: for (i=0;i<values.length; i++) {
784: $second.options[i] = new Option(values[i]);
785: $second.options[i].value = values[i];
786: $second.options[i].text = texts[i];
787: if (values[i] == select2def) {
788: $second.options[i].selected = true;
789: }
790: }
791: }
792: </script>
793: END
794: # output the initial values for the selection lists
795: $result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed()\">\n";
796: my @order = sort(keys(%{$hashref}));
797: if (ref($menuorder) eq 'ARRAY') {
798: @order = @{$menuorder};
799: }
800: foreach my $value (@order) {
801: $result.=" <option value=\"$value\" ";
802: $result.=" selected=\"selected\" " if ($value eq $firstdefault);
803: $result.=">".&mt($hashref->{$value}->{'text'})."</option>\n";
804: }
805: $result .= "</select>\n";
806: my %select2 = %{$hashref->{$firstdefault}->{'select2'}};
807: $result .= $middletext;
808: $result .= "<select size=\"1\" name=\"$secondselectname\">\n";
809: my $seconddefault = $hashref->{$firstdefault}->{'default'};
810:
811: my @secondorder = sort(keys(%select2));
812: if (ref($hashref->{$firstdefault}->{'order'}) eq 'ARRAY') {
813: @secondorder = @{$hashref->{$firstdefault}->{'order'}};
814: }
815: foreach my $value (@secondorder) {
816: $result.=" <option value=\"$value\" ";
817: $result.=" selected=\"selected\" " if ($value eq $seconddefault);
818: $result.=">".&mt($select2{$value})."</option>\n";
819: }
820: $result .= "</select>\n";
821: # return $debug;
822: return $result;
823: } # end of sub linked_select_forms {
824:
825: =pod
826:
827: =item * &help_open_topic($topic,$text,$stayOnPage,$width,$height)
828:
829: Returns a string corresponding to an HTML link to the given help
830: $topic, where $topic corresponds to the name of a .tex file in
831: /home/httpd/html/adm/help/tex, with underscores replaced by
832: spaces.
833:
834: $text will optionally be linked to the same topic, allowing you to
835: link text in addition to the graphic. If you do not want to link
836: text, but wish to specify one of the later parameters, pass an
837: empty string.
838:
839: $stayOnPage is a value that will be interpreted as a boolean. If true,
840: the link will not open a new window. If false, the link will open
841: a new window using Javascript. (Default is false.)
842:
843: $width and $height are optional numerical parameters that will
844: override the width and height of the popped up window, which may
845: be useful for certain help topics with big pictures included.
846:
847: =cut
848:
849: sub help_open_topic {
850: my ($topic, $text, $stayOnPage, $width, $height) = @_;
851: $text = "" if (not defined $text);
852: $stayOnPage = 0 if (not defined $stayOnPage);
853: if ($env{'browser.interface'} eq 'textual') {
854: $stayOnPage=1;
855: }
856: $width = 350 if (not defined $width);
857: $height = 400 if (not defined $height);
858: my $filename = $topic;
859: $filename =~ s/ /_/g;
860:
861: my $template = "";
862: my $link;
863:
864: $topic=~s/\W/\_/g;
865:
866: if (!$stayOnPage) {
867: $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
868: } else {
869: $link = "/adm/help/${filename}.hlp";
870: }
871:
872: # Add the text
873: if ($text ne "") {
874: $template .=
875: "<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>".
876: "<td bgcolor='#5555FF'><a target=\"_top\" href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
877: }
878:
879: # Add the graphic
880: my $title = &mt('Online Help');
881: my $helpicon=&lonhttpdurl("/adm/help/help.png");
882: $template .= <<"ENDTEMPLATE";
883: <a target="_top" href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help: $topic)" /></a>
884: ENDTEMPLATE
885: if ($text ne '') { $template.='</td></tr></table>' };
886: return $template;
887:
888: }
889:
890: # This is a quicky function for Latex cheatsheet editing, since it
891: # appears in at least four places
892: sub helpLatexCheatsheet {
893: my $other = shift;
894: my $addOther = '';
895: if ($other) {
896: $addOther = Apache::loncommon::help_open_topic($other, shift,
897: undef, undef, 600) .
898: '</td><td>';
899: }
900: return '<table><tr><td>'.
901: $addOther .
902: &Apache::loncommon::help_open_topic("Greek_Symbols",&mt('Greek Symbols'),
903: undef,undef,600)
904: .'</td><td>'.
905: &Apache::loncommon::help_open_topic("Other_Symbols",&mt('Other Symbols'),
906: undef,undef,600)
907: .'</td></tr></table>';
908: }
909:
910: sub general_help {
911: my $helptopic='Student_Intro';
912: if ($env{'request.role'}=~/^(ca|au)/) {
913: $helptopic='Authoring_Intro';
914: } elsif ($env{'request.role'}=~/^cc/) {
915: $helptopic='Course_Coordination_Intro';
916: } elsif ($env{'request.role'}=~/^dc/) {
917: $helptopic='Domain_Coordination_Intro';
918: }
919: return $helptopic;
920: }
921:
922: sub update_help_link {
923: my ($topic,$component_help,$faq,$bug,$stayOnPage) = @_;
924: my $origurl = $ENV{'REQUEST_URI'};
925: $origurl=~s|^/~|/priv/|;
926: my $timestamp = time;
927: foreach my $datum (\$topic,\$component_help,\$faq,\$bug,\$origurl) {
928: $$datum = &escape($$datum);
929: }
930:
931: my $banner_link = "/adm/helpmenu?page=banner&topic=$topic&component_help=$component_help&faq=$faq&bug=$bug&origurl=$origurl&stamp=$timestamp&stayonpage=$stayOnPage";
932: my $output .= <<"ENDOUTPUT";
933: <script type="text/javascript">
934: banner_link = '$banner_link';
935: </script>
936: ENDOUTPUT
937: return $output;
938: }
939:
940: # now just updates the help link and generates a blue icon
941: sub help_open_menu {
942: my ($topic,$component_help,$faq,$bug,$stayOnPage,$width,$height,$text)
943: = @_;
944: $stayOnPage = 0 if (not defined $stayOnPage);
945: # only use pop-up help (stayOnPage == 0)
946: # if environment.remote is on (using remote control UI)
947: if ($env{'browser.interface'} eq 'textual' ||
948: $env{'environment.remote'} eq 'off' ) {
949: $stayOnPage=1;
950: }
951: my $output;
952: if ($component_help) {
953: if (!$text) {
954: $output=&help_open_topic($component_help,undef,$stayOnPage,
955: $width,$height);
956: } else {
957: my $help_text;
958: $help_text=&unescape($topic);
959: $output='<table><tr><td>'.
960: &help_open_topic($component_help,$help_text,$stayOnPage,
961: $width,$height).'</td></tr></table>';
962: }
963: }
964: my $banner_link = &update_help_link($topic,$component_help,$faq,$bug,$stayOnPage);
965: return $output.$banner_link;
966: }
967:
968: sub top_nav_help {
969: my ($text) = @_;
970: $text = &mt($text);
971: my $stay_on_page =
972: ($env{'browser.interface'} eq 'textual' ||
973: $env{'environment.remote'} eq 'off' );
974: my $link = ($stay_on_page) ? "javascript:helpMenu('display')"
975: : "javascript:helpMenu('open')";
976: my $banner_link = &update_help_link(undef,undef,undef,undef,$stay_on_page);
977:
978: my $title = &mt('Get help');
979:
980: return <<"END";
981: $banner_link
982: <a href="$link" title="$title">$text</a>
983: END
984: }
985:
986: sub help_menu_js {
987: my ($text) = @_;
988:
989: my $stayOnPage =
990: ($env{'browser.interface'} eq 'textual' ||
991: $env{'environment.remote'} eq 'off' );
992:
993: my $width = 620;
994: my $height = 600;
995: my $helptopic=&general_help();
996: my $details_link = '/adm/help/'.$helptopic.'.hlp';
997: my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
998: my $start_page =
999: &Apache::loncommon::start_page('Help Menu', undef,
1000: {'frameset' => 1,
1001: 'js_ready' => 1,
1002: 'add_entries' => {
1003: 'border' => '0',
1004: 'rows' => "110,*",},});
1005: my $end_page =
1006: &Apache::loncommon::end_page({'frameset' => 1,
1007: 'js_ready' => 1,});
1008:
1009: my $template .= <<"ENDTEMPLATE";
1010: <script type="text/javascript">
1011: // <!-- BEGIN LON-CAPA Internal
1012: // <![CDATA[
1013: var banner_link = '';
1014: function helpMenu(target) {
1015: var caller = this;
1016: if (target == 'open') {
1017: var newWindow = null;
1018: try {
1019: newWindow = window.open($nothing,"helpmenu","HEIGHT=$height,WIDTH=$width,resizable=yes,scrollbars=yes" )
1020: }
1021: catch(error) {
1022: writeHelp(caller);
1023: return;
1024: }
1025: if (newWindow) {
1026: caller = newWindow;
1027: }
1028: }
1029: writeHelp(caller);
1030: return;
1031: }
1032: function writeHelp(caller) {
1033: caller.document.writeln('$start_page<frame name="bannerframe" src="'+banner_link+'" /><frame name="bodyframe" src="$details_link" /> $end_page')
1034: caller.document.close()
1035: caller.focus()
1036: }
1037: // ]]>
1038: // END LON-CAPA Internal -->
1039: </script>
1040: ENDTEMPLATE
1041: return $template;
1042: }
1043:
1044: sub help_open_bug {
1045: my ($topic, $text, $stayOnPage, $width, $height) = @_;
1046: unless ($env{'user.adv'}) { return ''; }
1047: unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }
1048: $text = "" if (not defined $text);
1049: $stayOnPage = 0 if (not defined $stayOnPage);
1050: if ($env{'browser.interface'} eq 'textual' ||
1051: $env{'environment.remote'} eq 'off' ) {
1052: $stayOnPage=1;
1053: }
1054: $width = 600 if (not defined $width);
1055: $height = 600 if (not defined $height);
1056:
1057: $topic=~s/\W+/\+/g;
1058: my $link='';
1059: my $template='';
1060: my $url=$Apache::lonnet::perlvar{'BugzillaHost'}.'enter_bug.cgi?product=LON-CAPA&bug_file_loc='.
1061: &escape($ENV{'REQUEST_URI'}).'&component='.$topic;
1062: if (!$stayOnPage)
1063: {
1064: $link = "javascript:void(open('$url', 'Bugzilla', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
1065: }
1066: else
1067: {
1068: $link = $url;
1069: }
1070: # Add the text
1071: if ($text ne "")
1072: {
1073: $template .=
1074: "<table bgcolor='#AA3333' cellspacing='1' cellpadding='1' border='0'><tr>".
1075: "<td bgcolor='#FF5555'><a target=\"_top\" href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1076: }
1077:
1078: # Add the graphic
1079: my $title = &mt('Report a Bug');
1080: my $bugicon=&lonhttpdurl("/adm/lonMisc/smallBug.gif");
1081: $template .= <<"ENDTEMPLATE";
1082: <a target="_top" href="$link" title="$title"><img src="$bugicon" border="0" alt="(Bug: $topic)" /></a>
1083: ENDTEMPLATE
1084: if ($text ne '') { $template.='</td></tr></table>' };
1085: return $template;
1086:
1087: }
1088:
1089: sub help_open_faq {
1090: my ($topic, $text, $stayOnPage, $width, $height) = @_;
1091: unless ($env{'user.adv'}) { return ''; }
1092: unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }
1093: $text = "" if (not defined $text);
1094: $stayOnPage = 0 if (not defined $stayOnPage);
1095: if ($env{'browser.interface'} eq 'textual' ||
1096: $env{'environment.remote'} eq 'off' ) {
1097: $stayOnPage=1;
1098: }
1099: $width = 350 if (not defined $width);
1100: $height = 400 if (not defined $height);
1101:
1102: $topic=~s/\W+/\+/g;
1103: my $link='';
1104: my $template='';
1105: my $url=$Apache::lonnet::perlvar{'FAQHost'}.'/fom/cache/'.$topic.'.html';
1106: if (!$stayOnPage)
1107: {
1108: $link = "javascript:void(open('$url', 'FAQ-O-Matic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
1109: }
1110: else
1111: {
1112: $link = $url;
1113: }
1114:
1115: # Add the text
1116: if ($text ne "")
1117: {
1118: $template .=
1119: "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
1120: "<td bgcolor='#448844'><a target=\"_top\" href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1121: }
1122:
1123: # Add the graphic
1124: my $title = &mt('View the FAQ');
1125: my $faqicon=&lonhttpdurl("/adm/lonMisc/smallFAQ.gif");
1126: $template .= <<"ENDTEMPLATE";
1127: <a target="_top" href="$link" title="$title"><img src="$faqicon" border="0" alt="(FAQ: $topic)" /></a>
1128: ENDTEMPLATE
1129: if ($text ne '') { $template.='</td></tr></table>' };
1130: return $template;
1131:
1132: }
1133:
1134: ###############################################################
1135: ###############################################################
1136:
1137: =pod
1138:
1139: =item * &change_content_javascript():
1140:
1141: This and the next function allow you to create small sections of an
1142: otherwise static HTML page that you can update on the fly with
1143: Javascript, even in Netscape 4.
1144:
1145: The Javascript fragment returned by this function (no E<lt>scriptE<gt> tag)
1146: must be written to the HTML page once. It will prove the Javascript
1147: function "change(name, content)". Calling the change function with the
1148: name of the section
1149: you want to update, matching the name passed to C<changable_area>, and
1150: the new content you want to put in there, will put the content into
1151: that area.
1152:
1153: B<Note>: Netscape 4 only reserves enough space for the changable area
1154: to contain room for the original contents. You need to "make space"
1155: for whatever changes you wish to make, and be B<sure> to check your
1156: code in Netscape 4. This feature in Netscape 4 is B<not> powerful;
1157: it's adequate for updating a one-line status display, but little more.
1158: This script will set the space to 100% width, so you only need to
1159: worry about height in Netscape 4.
1160:
1161: Modern browsers are much less limiting, and if you can commit to the
1162: user not using Netscape 4, this feature may be used freely with
1163: pretty much any HTML.
1164:
1165: =cut
1166:
1167: sub change_content_javascript {
1168: # If we're on Netscape 4, we need to use Layer-based code
1169: if ($env{'browser.type'} eq 'netscape' &&
1170: $env{'browser.version'} =~ /^4\./) {
1171: return (<<NETSCAPE4);
1172: function change(name, content) {
1173: doc = document.layers[name+"___escape"].layers[0].document;
1174: doc.open();
1175: doc.write(content);
1176: doc.close();
1177: }
1178: NETSCAPE4
1179: } else {
1180: # Otherwise, we need to use semi-standards-compliant code
1181: # (technically, "innerHTML" isn't standard but the equivalent
1182: # is really scary, and every useful browser supports it
1183: return (<<DOMBASED);
1184: function change(name, content) {
1185: element = document.getElementById(name);
1186: element.innerHTML = content;
1187: }
1188: DOMBASED
1189: }
1190: }
1191:
1192: =pod
1193:
1194: =item * &changable_area($name,$origContent):
1195:
1196: This provides a "changable area" that can be modified on the fly via
1197: the Javascript code provided in C<change_content_javascript>. $name is
1198: the name you will use to reference the area later; do not repeat the
1199: same name on a given HTML page more then once. $origContent is what
1200: the area will originally contain, which can be left blank.
1201:
1202: =cut
1203:
1204: sub changable_area {
1205: my ($name, $origContent) = @_;
1206:
1207: if ($env{'browser.type'} eq 'netscape' &&
1208: $env{'browser.version'} =~ /^4\./) {
1209: # If this is netscape 4, we need to use the Layer tag
1210: return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>";
1211: } else {
1212: return "<span id='$name'>$origContent</span>";
1213: }
1214: }
1215:
1216: =pod
1217:
1218: =item * &viewport_geometry_js
1219:
1220: Provides javascript object (Geometry) which can provide information about the viewport geometry for the client browser.
1221:
1222: =cut
1223:
1224:
1225: sub viewport_geometry_js {
1226: return <<"GEOMETRY";
1227: var Geometry = {};
1228: function init_geometry() {
1229: if (Geometry.init) { return };
1230: Geometry.init=1;
1231: if (window.innerHeight) {
1232: Geometry.getViewportHeight = function() { return window.innerHeight; };
1233: Geometry.getViewportWidth = function() { return window.innerWidth; };
1234: Geometry.getHorizontalScroll = function() { return window.pageXOffset; };
1235: Geometry.getVerticalScroll = function() { return window.pageYOffset; };
1236: }
1237: else if (document.documentElement && document.documentElement.clientHeight) {
1238: Geometry.getViewportHeight =
1239: function() { return document.documentElement.clientHeight; };
1240: Geometry.getViewportWidth =
1241: function() { return document.documentElement.clientWidth; };
1242:
1243: Geometry.getHorizontalScroll =
1244: function() { return document.documentElement.scrollLeft; };
1245: Geometry.getVerticalScroll =
1246: function() { return document.documentElement.scrollTop; };
1247: }
1248: else if (document.body.clientHeight) {
1249: Geometry.getViewportHeight =
1250: function() { return document.body.clientHeight; };
1251: Geometry.getViewportWidth =
1252: function() { return document.body.clientWidth; };
1253: Geometry.getHorizontalScroll =
1254: function() { return document.body.scrollLeft; };
1255: Geometry.getVerticalScroll =
1256: function() { return document.body.scrollTop; };
1257: }
1258: }
1259:
1260: GEOMETRY
1261: }
1262:
1263: =pod
1264:
1265: =item * &viewport_size_js()
1266:
1267: Provides a javascript function to set values of two form elements - width and height (elements are passed in as arguments to the javascript function) to the dimensions of the user's browser window.
1268:
1269: =cut
1270:
1271: sub viewport_size_js {
1272: my $geometry = &viewport_geometry_js();
1273: return <<"DIMS";
1274:
1275: $geometry
1276:
1277: function getViewportDims(width,height) {
1278: init_geometry();
1279: width.value = Geometry.getViewportWidth();
1280: height.value = Geometry.getViewportHeight();
1281: return;
1282: }
1283:
1284: DIMS
1285: }
1286:
1287: =pod
1288:
1289: =item * &resize_textarea_js()
1290:
1291: emits the needed javascript to resize a textarea to be as big as possible
1292:
1293: creates a function resize_textrea that takes two IDs first should be
1294: the id of the element to resize, second should be the id of a div that
1295: surrounds everything that comes after the textarea, this routine needs
1296: to be attached to the <body> for the onload and onresize events.
1297:
1298: =back
1299:
1300: =cut
1301:
1302: sub resize_textarea_js {
1303: my $geometry = &viewport_geometry_js();
1304: return <<"RESIZE";
1305: <script type="text/javascript">
1306: $geometry
1307:
1308: function getX(element) {
1309: var x = 0;
1310: while (element) {
1311: x += element.offsetLeft;
1312: element = element.offsetParent;
1313: }
1314: return x;
1315: }
1316: function getY(element) {
1317: var y = 0;
1318: while (element) {
1319: y += element.offsetTop;
1320: element = element.offsetParent;
1321: }
1322: return y;
1323: }
1324:
1325:
1326: function resize_textarea(textarea_id,bottom_id) {
1327: init_geometry();
1328: var textarea = document.getElementById(textarea_id);
1329: //alert(textarea);
1330:
1331: var textarea_top = getY(textarea);
1332: var textarea_height = textarea.offsetHeight;
1333: var bottom = document.getElementById(bottom_id);
1334: var bottom_top = getY(bottom);
1335: var bottom_height = bottom.offsetHeight;
1336: var window_height = Geometry.getViewportHeight();
1337: var fudge = 23;
1338: var new_height = window_height-fudge-textarea_top-bottom_height;
1339: if (new_height < 300) {
1340: new_height = 300;
1341: }
1342: textarea.style.height=new_height+'px';
1343: }
1344: </script>
1345: RESIZE
1346:
1347: }
1348:
1349: =pod
1350:
1351: =head1 Excel and CSV file utility routines
1352:
1353: =over 4
1354:
1355: =cut
1356:
1357: ###############################################################
1358: ###############################################################
1359:
1360: =pod
1361:
1362: =item * &csv_translate($text)
1363:
1364: Translate $text to allow it to be output as a 'comma separated values'
1365: format.
1366:
1367: =cut
1368:
1369: ###############################################################
1370: ###############################################################
1371: sub csv_translate {
1372: my $text = shift;
1373: $text =~ s/\"/\"\"/g;
1374: $text =~ s/\n/ /g;
1375: return $text;
1376: }
1377:
1378: ###############################################################
1379: ###############################################################
1380:
1381: =pod
1382:
1383: =item * &define_excel_formats()
1384:
1385: Define some commonly used Excel cell formats.
1386:
1387: Currently supported formats:
1388:
1389: =over 4
1390:
1391: =item header
1392:
1393: =item bold
1394:
1395: =item h1
1396:
1397: =item h2
1398:
1399: =item h3
1400:
1401: =item h4
1402:
1403: =item i
1404:
1405: =item date
1406:
1407: =back
1408:
1409: Inputs: $workbook
1410:
1411: Returns: $format, a hash reference.
1412:
1413: =cut
1414:
1415: ###############################################################
1416: ###############################################################
1417: sub define_excel_formats {
1418: my ($workbook) = @_;
1419: my $format;
1420: $format->{'header'} = $workbook->add_format(bold => 1,
1421: bottom => 1,
1422: align => 'center');
1423: $format->{'bold'} = $workbook->add_format(bold=>1);
1424: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
1425: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
1426: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
1427: $format->{'h4'} = $workbook->add_format(bold=>1, size=>12);
1428: $format->{'i'} = $workbook->add_format(italic=>1);
1429: $format->{'date'} = $workbook->add_format(num_format=>
1430: 'mm/dd/yyyy hh:mm:ss');
1431: return $format;
1432: }
1433:
1434: ###############################################################
1435: ###############################################################
1436:
1437: =pod
1438:
1439: =item * &create_workbook()
1440:
1441: Create an Excel worksheet. If it fails, output message on the
1442: request object and return undefs.
1443:
1444: Inputs: Apache request object
1445:
1446: Returns (undef) on failure,
1447: Excel worksheet object, scalar with filename, and formats
1448: from &Apache::loncommon::define_excel_formats on success
1449:
1450: =cut
1451:
1452: ###############################################################
1453: ###############################################################
1454: sub create_workbook {
1455: my ($r) = @_;
1456: #
1457: # Create the excel spreadsheet
1458: my $filename = '/prtspool/'.
1459: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1460: time.'_'.rand(1000000000).'.xls';
1461: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1462: if (! defined($workbook)) {
1463: $r->log_error("Error creating excel spreadsheet $filename: $!");
1464: $r->print('<p>'.&mt("Unable to create new Excel file. ".
1465: "This error has been logged. ".
1466: "Please alert your LON-CAPA administrator").
1467: '</p>');
1468: return (undef);
1469: }
1470: #
1471: $workbook->set_tempdir('/home/httpd/perl/tmp');
1472: #
1473: my $format = &Apache::loncommon::define_excel_formats($workbook);
1474: return ($workbook,$filename,$format);
1475: }
1476:
1477: ###############################################################
1478: ###############################################################
1479:
1480: =pod
1481:
1482: =item * &create_text_file()
1483:
1484: Create a file to write to and eventually make available to the user.
1485: If file creation fails, outputs an error message on the request object and
1486: return undefs.
1487:
1488: Inputs: Apache request object, and file suffix
1489:
1490: Returns (undef) on failure,
1491: Filehandle and filename on success.
1492:
1493: =cut
1494:
1495: ###############################################################
1496: ###############################################################
1497: sub create_text_file {
1498: my ($r,$suffix) = @_;
1499: if (! defined($suffix)) { $suffix = 'txt'; };
1500: my $fh;
1501: my $filename = '/prtspool/'.
1502: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1503: time.'_'.rand(1000000000).'.'.$suffix;
1504: $fh = Apache::File->new('>/home/httpd'.$filename);
1505: if (! defined($fh)) {
1506: $r->log_error("Couldn't open $filename for output $!");
1507: $r->print("Problems occured in creating the output file. ".
1508: "This error has been logged. ".
1509: "Please alert your LON-CAPA administrator.");
1510: }
1511: return ($fh,$filename)
1512: }
1513:
1514:
1515: =pod
1516:
1517: =back
1518:
1519: =cut
1520:
1521: ###############################################################
1522: ## Home server <option> list generating code ##
1523: ###############################################################
1524:
1525: # ------------------------------------------
1526:
1527: sub domain_select {
1528: my ($name,$value,$multiple)=@_;
1529: my %domains=map {
1530: $_ => $_.' '. &Apache::lonnet::domain($_,'description')
1531: } &Apache::lonnet::all_domains();
1532: if ($multiple) {
1533: $domains{''}=&mt('Any domain');
1534: $domains{'select_form_order'} = [sort {lc($a) cmp lc($b) } (keys(%domains))];
1535: return &multiple_select_form($name,$value,4,\%domains);
1536: } else {
1537: $domains{'select_form_order'} = [sort {lc($a) cmp lc($b) } (keys(%domains))];
1538: return &select_form($name,$value,%domains);
1539: }
1540: }
1541:
1542: #-------------------------------------------
1543:
1544: =pod
1545:
1546: =head1 Routines for form select boxes
1547:
1548: =over 4
1549:
1550: =item * &multiple_select_form($name,$value,$size,$hash,$order)
1551:
1552: Returns a string containing a <select> element int multiple mode
1553:
1554:
1555: Args:
1556: $name - name of the <select> element
1557: $value - scalar or array ref of values that should already be selected
1558: $size - number of rows long the select element is
1559: $hash - the elements should be 'option' => 'shown text'
1560: (shown text should already have been &mt())
1561: $order - (optional) array ref of the order to show the elements in
1562:
1563: =cut
1564:
1565: #-------------------------------------------
1566: sub multiple_select_form {
1567: my ($name,$value,$size,$hash,$order)=@_;
1568: my %selected = map { $_ => 1 } ref($value)?@{$value}:($value);
1569: my $output='';
1570: if (! defined($size)) {
1571: $size = 4;
1572: if (scalar(keys(%$hash))<4) {
1573: $size = scalar(keys(%$hash));
1574: }
1575: }
1576: $output.="\n<select name='$name' size='$size' multiple='1'>";
1577: my @order;
1578: if (ref($order) eq 'ARRAY') {
1579: @order = @{$order};
1580: } else {
1581: @order = sort(keys(%$hash));
1582: }
1583: if (exists($$hash{'select_form_order'})) {
1584: @order = @{$$hash{'select_form_order'}};
1585: }
1586:
1587: foreach my $key (@order) {
1588: $output.='<option value="'.&HTML::Entities::encode($key,'"<>&').'" ';
1589: $output.='selected="selected" ' if ($selected{$key});
1590: $output.='>'.$hash->{$key}."</option>\n";
1591: }
1592: $output.="</select>\n";
1593: return $output;
1594: }
1595:
1596: #-------------------------------------------
1597:
1598: =pod
1599:
1600: =item * &select_form($defdom,$name,%hash)
1601:
1602: Returns a string containing a <select name='$name' size='1'> form to
1603: allow a user to select options from a hash option_name => displayed text.
1604: See lonrights.pm for an example invocation and use.
1605:
1606: =cut
1607:
1608: #-------------------------------------------
1609: sub select_form {
1610: my ($def,$name,%hash) = @_;
1611: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1612: my @keys;
1613: if (exists($hash{'select_form_order'})) {
1614: @keys=@{$hash{'select_form_order'}};
1615: } else {
1616: @keys=sort(keys(%hash));
1617: }
1618: foreach my $key (@keys) {
1619: $selectform.=
1620: '<option value="'.&HTML::Entities::encode($key,'"<>&').'" '.
1621: ($key eq $def ? 'selected="selected" ' : '').
1622: ">".&mt($hash{$key})."</option>\n";
1623: }
1624: $selectform.="</select>";
1625: return $selectform;
1626: }
1627:
1628: # For display filters
1629:
1630: sub display_filter {
1631: if (!$env{'form.show'}) { $env{'form.show'}=10; }
1632: if (!$env{'form.displayfilter'}) { $env{'form.displayfilter'}='currentfolder'; }
1633: return '<nobr><label>'.&mt('Records [_1]',
1634: &Apache::lonmeta::selectbox('show',$env{'form.show'},undef,
1635: (&mt('all'),10,20,50,100,1000,10000))).
1636: '</label></nobr> <nobr>'.
1637: &mt('Filter [_1]',
1638: &select_form($env{'form.displayfilter'},
1639: 'displayfilter',
1640: ('currentfolder' => 'Current folder/page',
1641: 'containing' => 'Containing phrase',
1642: 'none' => 'None'))).
1643: '<input type="text" name="containingphrase" size="30" value="'.&HTML::Entities::encode($env{'form.containingphrase'}).'" /></nobr>';
1644: }
1645:
1646: sub gradeleveldescription {
1647: my $gradelevel=shift;
1648: my %gradelevels=(0 => 'Not specified',
1649: 1 => 'Grade 1',
1650: 2 => 'Grade 2',
1651: 3 => 'Grade 3',
1652: 4 => 'Grade 4',
1653: 5 => 'Grade 5',
1654: 6 => 'Grade 6',
1655: 7 => 'Grade 7',
1656: 8 => 'Grade 8',
1657: 9 => 'Grade 9',
1658: 10 => 'Grade 10',
1659: 11 => 'Grade 11',
1660: 12 => 'Grade 12',
1661: 13 => 'Grade 13',
1662: 14 => '100 Level',
1663: 15 => '200 Level',
1664: 16 => '300 Level',
1665: 17 => '400 Level',
1666: 18 => 'Graduate Level');
1667: return &mt($gradelevels{$gradelevel});
1668: }
1669:
1670: sub select_level_form {
1671: my ($deflevel,$name)=@_;
1672: unless ($deflevel) { $deflevel=0; }
1673: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1674: for (my $i=0; $i<=18; $i++) {
1675: $selectform.="<option value=\"$i\" ".
1676: ($i==$deflevel ? 'selected="selected" ' : '').
1677: ">".&gradeleveldescription($i)."</option>\n";
1678: }
1679: $selectform.="</select>";
1680: return $selectform;
1681: }
1682:
1683: #-------------------------------------------
1684:
1685: =pod
1686:
1687: =item * &select_dom_form($defdom,$name,$includeempty,$showdomdesc)
1688:
1689: Returns a string containing a <select name='$name' size='1'> form to
1690: allow a user to select the domain to preform an operation in.
1691: See loncreateuser.pm for an example invocation and use.
1692:
1693: If the $includeempty flag is set, it also includes an empty choice ("no domain
1694: selected");
1695:
1696: If the $showdomdesc flag is set, the domain name is followed by the domain description.
1697:
1698: =cut
1699:
1700: #-------------------------------------------
1701: sub select_dom_form {
1702: my ($defdom,$name,$includeempty,$showdomdesc) = @_;
1703: my @domains = sort {lc($a) cmp lc($b)} (&Apache::lonnet::all_domains());
1704: if ($includeempty) { @domains=('',@domains); }
1705: my $selectdomain = "<select name=\"$name\" size=\"1\">\n";
1706: foreach my $dom (@domains) {
1707: $selectdomain.="<option value=\"$dom\" ".
1708: ($dom eq $defdom ? 'selected="selected" ' : '').'>'.$dom;
1709: if ($showdomdesc) {
1710: if ($dom ne '') {
1711: my $domdesc = &Apache::lonnet::domain($dom,'description');
1712: if ($domdesc ne '') {
1713: $selectdomain .= ' ('.$domdesc.')';
1714: }
1715: }
1716: }
1717: $selectdomain .= "</option>\n";
1718: }
1719: $selectdomain.="</select>";
1720: return $selectdomain;
1721: }
1722:
1723: #-------------------------------------------
1724:
1725: =pod
1726:
1727: =item * &home_server_form_item($domain,$name,$defaultflag)
1728:
1729: input: 4 arguments (two required, two optional) -
1730: $domain - domain of new user
1731: $name - name of form element
1732: $default - Value of 'default' causes a default item to be first
1733: option, and selected by default.
1734: $hide - Value of 'hide' causes hiding of the name of the server,
1735: if 1 server found, or default, if 0 found.
1736: output: returns 2 items:
1737: (a) form element which contains either:
1738: (i) <select name="$name">
1739: <option value="$hostid1">$hostid $servers{$hostid}</option>
1740: <option value="$hostid2">$hostid $servers{$hostid}</option>
1741: </select>
1742: form item if there are multiple library servers in $domain, or
1743: (ii) an <input type="hidden" name="$name" value="$hostid" /> form item
1744: if there is only one library server in $domain.
1745:
1746: (b) number of library servers found.
1747:
1748: See loncreateuser.pm for example of use.
1749:
1750: =cut
1751:
1752: #-------------------------------------------
1753: sub home_server_form_item {
1754: my ($domain,$name,$default,$hide) = @_;
1755: my %servers = &Apache::lonnet::get_servers($domain,'library');
1756: my $result;
1757: my $numlib = keys(%servers);
1758: if ($numlib > 1) {
1759: $result .= '<select name="'.$name.'" />'."\n";
1760: if ($default) {
1761: $result .= '<option value="default" selected>'.&mt('default').
1762: '</option>'."\n";
1763: }
1764: foreach my $hostid (sort(keys(%servers))) {
1765: $result.= '<option value="'.$hostid.'">'.
1766: $hostid.' '.$servers{$hostid}."</option>\n";
1767: }
1768: $result .= '</select>'."\n";
1769: } elsif ($numlib == 1) {
1770: my $hostid;
1771: foreach my $item (keys(%servers)) {
1772: $hostid = $item;
1773: }
1774: $result .= '<input type="hidden" name="'.$name.'" value="'.
1775: $hostid.'" />';
1776: if (!$hide) {
1777: $result .= $hostid.' '.$servers{$hostid};
1778: }
1779: $result .= "\n";
1780: } elsif ($default) {
1781: $result .= '<input type="hidden" name="'.$name.
1782: '" value="default" />';
1783: if (!$hide) {
1784: $result .= &mt('default');
1785: }
1786: $result .= "\n";
1787: }
1788: return ($result,$numlib);
1789: }
1790:
1791: =pod
1792:
1793: =back
1794:
1795: =cut
1796:
1797: ###############################################################
1798: ## Decoding User Agent ##
1799: ###############################################################
1800:
1801: =pod
1802:
1803: =head1 Decoding the User Agent
1804:
1805: =over 4
1806:
1807: =item * &decode_user_agent()
1808:
1809: Inputs: $r
1810:
1811: Outputs:
1812:
1813: =over 4
1814:
1815: =item * $httpbrowser
1816:
1817: =item * $clientbrowser
1818:
1819: =item * $clientversion
1820:
1821: =item * $clientmathml
1822:
1823: =item * $clientunicode
1824:
1825: =item * $clientos
1826:
1827: =back
1828:
1829: =back
1830:
1831: =cut
1832:
1833: ###############################################################
1834: ###############################################################
1835: sub decode_user_agent {
1836: my ($r)=@_;
1837: my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});
1838: my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});
1839: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
1840: if (!$httpbrowser && $r) { $httpbrowser=$r->header_in('User-Agent'); }
1841: my $clientbrowser='unknown';
1842: my $clientversion='0';
1843: my $clientmathml='';
1844: my $clientunicode='0';
1845: for (my $i=0;$i<=$#browsertype;$i++) {
1846: my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
1847: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
1848: $clientbrowser=$bname;
1849: $httpbrowser=~/$vreg/i;
1850: $clientversion=$1;
1851: $clientmathml=($clientversion>=$minv);
1852: $clientunicode=($clientversion>=$univ);
1853: }
1854: }
1855: my $clientos='unknown';
1856: if (($httpbrowser=~/linux/i) ||
1857: ($httpbrowser=~/unix/i) ||
1858: ($httpbrowser=~/ux/i) ||
1859: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
1860: if (($httpbrowser=~/vax/i) ||
1861: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
1862: if ($httpbrowser=~/next/i) { $clientos='next'; }
1863: if (($httpbrowser=~/mac/i) ||
1864: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
1865: if ($httpbrowser=~/win/i) { $clientos='win'; }
1866: if ($httpbrowser=~/embed/i) { $clientos='pda'; }
1867: return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
1868: $clientunicode,$clientos,);
1869: }
1870:
1871: ###############################################################
1872: ## Authentication changing form generation subroutines ##
1873: ###############################################################
1874: ##
1875: ## All of the authform_xxxxxxx subroutines take their inputs in a
1876: ## hash, and have reasonable default values.
1877: ##
1878: ## formname = the name given in the <form> tag.
1879: #-------------------------------------------
1880:
1881: =pod
1882:
1883: =head1 Authentication Routines
1884:
1885: =over 4
1886:
1887: =item * &authform_xxxxxx()
1888:
1889: The authform_xxxxxx subroutines provide javascript and html forms which
1890: handle some of the conveniences required for authentication forms.
1891: This is not an optimal method, but it works.
1892:
1893: =over 4
1894:
1895: =item * authform_header
1896:
1897: =item * authform_authorwarning
1898:
1899: =item * authform_nochange
1900:
1901: =item * authform_kerberos
1902:
1903: =item * authform_internal
1904:
1905: =item * authform_filesystem
1906:
1907: =back
1908:
1909: See loncreateuser.pm for invocation and use examples.
1910:
1911: =cut
1912:
1913: #-------------------------------------------
1914: sub authform_header{
1915: my %in = (
1916: formname => 'cu',
1917: kerb_def_dom => '',
1918: @_,
1919: );
1920: $in{'formname'} = 'document.' . $in{'formname'};
1921: my $result='';
1922:
1923: #---------------------------------------------- Code for upper case translation
1924: my $Javascript_toUpperCase;
1925: unless ($in{kerb_def_dom}) {
1926: $Javascript_toUpperCase =<<"END";
1927: switch (choice) {
1928: case 'krb': currentform.elements[choicearg].value =
1929: currentform.elements[choicearg].value.toUpperCase();
1930: break;
1931: default:
1932: }
1933: END
1934: } else {
1935: $Javascript_toUpperCase = "";
1936: }
1937:
1938: my $radioval = "'nochange'";
1939: if (defined($in{'curr_authtype'})) {
1940: if ($in{'curr_authtype'} ne '') {
1941: $radioval = "'".$in{'curr_authtype'}."arg'";
1942: }
1943: }
1944: my $argfield = 'null';
1945: if (defined($in{'mode'})) {
1946: if ($in{'mode'} eq 'modifycourse') {
1947: if (defined($in{'curr_autharg'})) {
1948: if ($in{'curr_autharg'} ne '') {
1949: $argfield = "'$in{'curr_autharg'}'";
1950: }
1951: }
1952: }
1953: }
1954:
1955: $result.=<<"END";
1956: var current = new Object();
1957: current.radiovalue = $radioval;
1958: current.argfield = $argfield;
1959:
1960: function changed_radio(choice,currentform) {
1961: var choicearg = choice + 'arg';
1962: // If a radio button in changed, we need to change the argfield
1963: if (current.radiovalue != choice) {
1964: current.radiovalue = choice;
1965: if (current.argfield != null) {
1966: currentform.elements[current.argfield].value = '';
1967: }
1968: if (choice == 'nochange') {
1969: current.argfield = null;
1970: } else {
1971: current.argfield = choicearg;
1972: switch(choice) {
1973: case 'krb':
1974: currentform.elements[current.argfield].value =
1975: "$in{'kerb_def_dom'}";
1976: break;
1977: default:
1978: break;
1979: }
1980: }
1981: }
1982: return;
1983: }
1984:
1985: function changed_text(choice,currentform) {
1986: var choicearg = choice + 'arg';
1987: if (currentform.elements[choicearg].value !='') {
1988: $Javascript_toUpperCase
1989: // clear old field
1990: if ((current.argfield != choicearg) && (current.argfield != null)) {
1991: currentform.elements[current.argfield].value = '';
1992: }
1993: current.argfield = choicearg;
1994: }
1995: set_auth_radio_buttons(choice,currentform);
1996: return;
1997: }
1998:
1999: function set_auth_radio_buttons(newvalue,currentform) {
2000: var i=0;
2001: while (i < currentform.login.length) {
2002: if (currentform.login[i].value == newvalue) { break; }
2003: i++;
2004: }
2005: if (i == currentform.login.length) {
2006: return;
2007: }
2008: current.radiovalue = newvalue;
2009: currentform.login[i].checked = true;
2010: return;
2011: }
2012: END
2013: return $result;
2014: }
2015:
2016: sub authform_authorwarning{
2017: my $result='';
2018: $result='<i>'.
2019: &mt('As a general rule, only authors or co-authors should be '.
2020: 'filesystem authenticated '.
2021: '(which allows access to the server filesystem).')."</i>\n";
2022: return $result;
2023: }
2024:
2025: sub authform_nochange{
2026: my %in = (
2027: formname => 'document.cu',
2028: kerb_def_dom => 'MSU.EDU',
2029: @_,
2030: );
2031: my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
2032: my $result;
2033: if (keys(%can_assign) == 0) {
2034: $result = &mt('Under you current role you are not permitted to change login settings for this user');
2035: } else {
2036: $result = '<label>'.&mt('[_1] Do not change login data',
2037: '<input type="radio" name="login" value="nochange" '.
2038: 'checked="checked" onclick="'.
2039: "javascript:changed_radio('nochange',$in{'formname'});".'" />').
2040: '</label>';
2041: }
2042: return $result;
2043: }
2044:
2045: sub authform_kerberos {
2046: my %in = (
2047: formname => 'document.cu',
2048: kerb_def_dom => 'MSU.EDU',
2049: kerb_def_auth => 'krb4',
2050: @_,
2051: );
2052: my ($check4,$check5,$krbcheck,$krbarg,$krbver,$result,$authtype,
2053: $autharg,$jscall);
2054: my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
2055: if ($in{'kerb_def_auth'} eq 'krb5') {
2056: $check5 = ' checked="on"';
2057: } else {
2058: $check4 = ' checked="on"';
2059: }
2060: $krbarg = $in{'kerb_def_dom'};
2061: if (defined($in{'curr_authtype'})) {
2062: if ($in{'curr_authtype'} eq 'krb') {
2063: $krbcheck = ' checked="on"';
2064: if (defined($in{'mode'})) {
2065: if ($in{'mode'} eq 'modifyuser') {
2066: $krbcheck = '';
2067: }
2068: }
2069: if (defined($in{'curr_kerb_ver'})) {
2070: if ($in{'curr_krb_ver'} eq '5') {
2071: $check5 = ' checked="on"';
2072: $check4 = '';
2073: } else {
2074: $check4 = ' checked="on"';
2075: $check5 = '';
2076: }
2077: }
2078: if (defined($in{'curr_autharg'})) {
2079: $krbarg = $in{'curr_autharg'};
2080: }
2081: if (!$can_assign{'krb4'} && !$can_assign{'krb5'}) {
2082: if (defined($in{'curr_autharg'})) {
2083: $result =
2084: &mt('Currently Kerberos authenticated with domain [_1] Version [_2].',
2085: $in{'curr_autharg'},$krbver);
2086: } else {
2087: $result =
2088: &mt('Currently Kerberos authenticated, Version [_1].',$krbver);
2089: }
2090: return $result;
2091: }
2092: }
2093: } else {
2094: if ($authnum == 1) {
2095: $authtype = '<input type="hidden" name="login" value="krb">';
2096: }
2097: }
2098: if (!$can_assign{'krb4'} && !$can_assign{'krb5'}) {
2099: return;
2100: } elsif ($authtype eq '') {
2101: if (defined($in{'mode'})) {
2102: if ($in{'mode'} eq 'modifycourse') {
2103: if ($authnum == 1) {
2104: $authtype = '<input type="hidden" name="login" value="krb">';
2105: }
2106: }
2107: }
2108: }
2109: $jscall = "javascript:changed_radio('krb',$in{'formname'});";
2110: if ($authtype eq '') {
2111: $authtype = '<input type="radio" name="login" value="krb" '.
2112: 'onclick="'.$jscall.'" onchange="'.$jscall.'"'.
2113: $krbcheck.' />';
2114: }
2115: if (($can_assign{'krb4'} && $can_assign{'krb5'}) ||
2116: ($can_assign{'krb4'} && !$can_assign{'krb5'} &&
2117: $in{'curr_authtype'} eq 'krb5') ||
2118: (!$can_assign{'krb4'} && $can_assign{'krb5'} &&
2119: $in{'curr_authtype'} eq 'krb4')) {
2120: $result .= &mt
2121: ('[_1] Kerberos authenticated with domain [_2] '.
2122: '[_3] Version 4 [_4] Version 5 [_5]',
2123: '<label>'.$authtype,
2124: '</label><input type="text" size="10" name="krbarg" '.
2125: 'value="'.$krbarg.'" '.
2126: 'onchange="'.$jscall.'" />',
2127: '<label><input type="radio" name="krbver" value="4" '.$check4.' />',
2128: '</label><label><input type="radio" name="krbver" value="5" '.$check5.' />',
2129: '</label>');
2130: } elsif ($can_assign{'krb4'}) {
2131: $result .= &mt
2132: ('[_1] Kerberos authenticated with domain [_2] '.
2133: '[_3] Version 4 [_4]',
2134: '<label>'.$authtype,
2135: '</label><input type="text" size="10" name="krbarg" '.
2136: 'value="'.$krbarg.'" '.
2137: 'onchange="'.$jscall.'" />',
2138: '<label><input type="hidden" name="krbver" value="4" />',
2139: '</label>');
2140: } elsif ($can_assign{'krb5'}) {
2141: $result .= &mt
2142: ('[_1] Kerberos authenticated with domain [_2] '.
2143: '[_3] Version 5 [_4]',
2144: '<label>'.$authtype,
2145: '</label><input type="text" size="10" name="krbarg" '.
2146: 'value="'.$krbarg.'" '.
2147: 'onchange="'.$jscall.'" />',
2148: '<label><input type="hidden" name="krbver" value="5" />',
2149: '</label>');
2150: }
2151: return $result;
2152: }
2153:
2154: sub authform_internal{
2155: my %in = (
2156: formname => 'document.cu',
2157: kerb_def_dom => 'MSU.EDU',
2158: @_,
2159: );
2160: my ($intcheck,$intarg,$result,$authtype,$autharg,$jscall);
2161: my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
2162: if (defined($in{'curr_authtype'})) {
2163: if ($in{'curr_authtype'} eq 'int') {
2164: if ($can_assign{'int'}) {
2165: $intcheck = 'checked="on" ';
2166: if (defined($in{'mode'})) {
2167: if ($in{'mode'} eq 'modifyuser') {
2168: $intcheck = '';
2169: }
2170: }
2171: if (defined($in{'curr_autharg'})) {
2172: $intarg = $in{'curr_autharg'};
2173: }
2174: } else {
2175: $result = &mt('Currently internally authenticated.');
2176: return $result;
2177: }
2178: }
2179: } else {
2180: if ($authnum == 1) {
2181: $authtype = '<input type="hidden" name="login" value="int">';
2182: }
2183: }
2184: if (!$can_assign{'int'}) {
2185: return;
2186: } elsif ($authtype eq '') {
2187: if (defined($in{'mode'})) {
2188: if ($in{'mode'} eq 'modifycourse') {
2189: if ($authnum == 1) {
2190: $authtype = '<input type="hidden" name="login" value="int">';
2191: }
2192: }
2193: }
2194: }
2195: $jscall = "javascript:changed_radio('int',$in{'formname'});";
2196: if ($authtype eq '') {
2197: $authtype = '<input type="radio" name="login" value="int" '.$intcheck.
2198: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />';
2199: }
2200: $autharg = '<input type="password" size="10" name="intarg" value="'.
2201: $intarg.'" onchange="'.$jscall.'" />';
2202: $result = &mt
2203: ('[_1] Internally authenticated (with initial password [_2])',
2204: '<label>'.$authtype,'</label>'.$autharg);
2205: $result.="<label><input type=\"checkbox\" name=\"visible\" onClick='if (this.checked) { this.form.intarg.type=\"text\" } else { this.form.intarg.type=\"password\" }' />".&mt('Visible input').'</label>';
2206: return $result;
2207: }
2208:
2209: sub authform_local{
2210: my %in = (
2211: formname => 'document.cu',
2212: kerb_def_dom => 'MSU.EDU',
2213: @_,
2214: );
2215: my ($loccheck,$locarg,$result,$authtype,$autharg,$jscall);
2216: my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
2217: if (defined($in{'curr_authtype'})) {
2218: if ($in{'curr_authtype'} eq 'loc') {
2219: if ($can_assign{'loc'}) {
2220: $loccheck = 'checked="on" ';
2221: if (defined($in{'mode'})) {
2222: if ($in{'mode'} eq 'modifyuser') {
2223: $loccheck = '';
2224: }
2225: }
2226: if (defined($in{'curr_autharg'})) {
2227: $locarg = $in{'curr_autharg'};
2228: }
2229: } else {
2230: $result = &mt('Currently using local (institutional) authentication.');
2231: return $result;
2232: }
2233: }
2234: } else {
2235: if ($authnum == 1) {
2236: $authtype = '<input type="hidden" name="login" value="loc">';
2237: }
2238: }
2239: if (!$can_assign{'loc'}) {
2240: return;
2241: } elsif ($authtype eq '') {
2242: if (defined($in{'mode'})) {
2243: if ($in{'mode'} eq 'modifycourse') {
2244: if ($authnum == 1) {
2245: $authtype = '<input type="hidden" name="login" value="loc">';
2246: }
2247: }
2248: }
2249: }
2250: $jscall = "javascript:changed_radio('loc',$in{'formname'});";
2251: if ($authtype eq '') {
2252: $authtype = '<input type="radio" name="login" value="loc" '.
2253: $loccheck.' onchange="'.$jscall.'" onclick="'.
2254: $jscall.'" />';
2255: }
2256: $autharg = '<input type="text" size="10" name="locarg" value="'.
2257: $locarg.'" onchange="'.$jscall.'" />';
2258: $result = &mt('[_1] Local Authentication with argument [_2]',
2259: '<label>'.$authtype,'</label>'.$autharg);
2260: return $result;
2261: }
2262:
2263: sub authform_filesystem{
2264: my %in = (
2265: formname => 'document.cu',
2266: kerb_def_dom => 'MSU.EDU',
2267: @_,
2268: );
2269: my ($fsyscheck,$result,$authtype,$autharg,$jscall);
2270: my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
2271: if (defined($in{'curr_authtype'})) {
2272: if ($in{'curr_authtype'} eq 'fsys') {
2273: if ($can_assign{'fsys'}) {
2274: $fsyscheck = 'checked="on" ';
2275: if (defined($in{'mode'})) {
2276: if ($in{'mode'} eq 'modifyuser') {
2277: $fsyscheck = '';
2278: }
2279: }
2280: } else {
2281: $result = &mt('Currently Filesystem Authenticated.');
2282: return $result;
2283: }
2284: }
2285: } else {
2286: if ($authnum == 1) {
2287: $authtype = '<input type="hidden" name="login" value="fsys">';
2288: }
2289: }
2290: if (!$can_assign{'fsys'}) {
2291: return;
2292: } elsif ($authtype eq '') {
2293: if (defined($in{'mode'})) {
2294: if ($in{'mode'} eq 'modifycourse') {
2295: if ($authnum == 1) {
2296: $authtype = '<input type="hidden" name="login" value="fsys">';
2297: }
2298: }
2299: }
2300: }
2301: $jscall = "javascript:changed_radio('fsys',$in{'formname'});";
2302: if ($authtype eq '') {
2303: $authtype = '<input type="radio" name="login" value="fsys" '.
2304: $fsyscheck.' onchange="'.$jscall.'" onclick="'.
2305: $jscall.'" />';
2306: }
2307: $autharg = '<input type="text" size="10" name="fsysarg" value=""'.
2308: ' onchange="'.$jscall.'" />';
2309: $result = &mt
2310: ('[_1] Filesystem Authenticated (with initial password [_2])',
2311: '<label><input type="radio" name="login" value="fsys" '.
2312: $fsyscheck.'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
2313: '</label><input type="password" size="10" name="fsysarg" value="" '.
2314: 'onchange="'.$jscall.'" />');
2315: return $result;
2316: }
2317:
2318: sub get_assignable_auth {
2319: my ($dom) = @_;
2320: if ($dom eq '') {
2321: $dom = $env{'request.role.domain'};
2322: }
2323: my %can_assign = (
2324: krb4 => 1,
2325: krb5 => 1,
2326: int => 1,
2327: loc => 1,
2328: );
2329: my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$dom);
2330: if (ref($domconfig{'usercreation'}) eq 'HASH') {
2331: if (ref($domconfig{'usercreation'}{'authtypes'}) eq 'HASH') {
2332: my $authhash = $domconfig{'usercreation'}{'authtypes'};
2333: my $context;
2334: if ($env{'request.role'} =~ /^au/) {
2335: $context = 'author';
2336: } elsif ($env{'request.role'} =~ /^dc/) {
2337: $context = 'domain';
2338: } elsif ($env{'request.course.id'}) {
2339: $context = 'course';
2340: }
2341: if ($context) {
2342: if (ref($authhash->{$context}) eq 'HASH') {
2343: %can_assign = %{$authhash->{$context}};
2344: }
2345: }
2346: }
2347: }
2348: my $authnum = 0;
2349: foreach my $key (keys(%can_assign)) {
2350: if ($can_assign{$key}) {
2351: $authnum ++;
2352: }
2353: }
2354: if ($can_assign{'krb4'} && $can_assign{'krb5'}) {
2355: $authnum --;
2356: }
2357: return ($authnum,%can_assign);
2358: }
2359:
2360: ###############################################################
2361: ## Get Kerberos Defaults for Domain ##
2362: ###############################################################
2363: ##
2364: ## Returns default kerberos version and an associated argument
2365: ## as listed in file domain.tab. If not listed, provides
2366: ## appropriate default domain and kerberos version.
2367: ##
2368: #-------------------------------------------
2369:
2370: =pod
2371:
2372: =item * &get_kerberos_defaults()
2373:
2374: get_kerberos_defaults($target_domain) returns the default kerberos
2375: version and domain. If not found, it defaults to version 4 and the
2376: domain of the server.
2377:
2378: =over 4
2379:
2380: ($def_version, $def_krb_domain) = &get_kerberos_defaults($target_domain);
2381:
2382: =back
2383:
2384: =back
2385:
2386: =cut
2387:
2388: #-------------------------------------------
2389: sub get_kerberos_defaults {
2390: my $domain=shift;
2391: my ($krbdef,$krbdefdom);
2392: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
2393: if (($domdefaults{'auth_def'} =~/^krb(4|5)$/) && ($domdefaults{'auth_arg_def'} ne '')) {
2394: $krbdef = $domdefaults{'auth_def'};
2395: $krbdefdom = $domdefaults{'auth_arg_def'};
2396: } else {
2397: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
2398: my $krbdefdom=$1;
2399: $krbdefdom=~tr/a-z/A-Z/;
2400: $krbdef = "krb4";
2401: }
2402: return ($krbdef,$krbdefdom);
2403: }
2404:
2405:
2406: ###############################################################
2407: ## Thesaurus Functions ##
2408: ###############################################################
2409:
2410: =pod
2411:
2412: =head1 Thesaurus Functions
2413:
2414: =over 4
2415:
2416: =item * &initialize_keywords()
2417:
2418: Initializes the package variable %Keywords if it is empty. Uses the
2419: package variable $thesaurus_db_file.
2420:
2421: =cut
2422:
2423: ###################################################
2424:
2425: sub initialize_keywords {
2426: return 1 if (scalar keys(%Keywords));
2427: # If we are here, %Keywords is empty, so fill it up
2428: # Make sure the file we need exists...
2429: if (! -e $thesaurus_db_file) {
2430: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file".
2431: " failed because it does not exist");
2432: return 0;
2433: }
2434: # Set up the hash as a database
2435: my %thesaurus_db;
2436: if (! tie(%thesaurus_db,'GDBM_File',
2437: $thesaurus_db_file,&GDBM_READER(),0640)){
2438: &Apache::lonnet::logthis("Could not tie \%thesaurus_db to ".
2439: $thesaurus_db_file);
2440: return 0;
2441: }
2442: # Get the average number of appearances of a word.
2443: my $avecount = $thesaurus_db{'average.count'};
2444: # Put keywords (those that appear > average) into %Keywords
2445: while (my ($word,$data)=each (%thesaurus_db)) {
2446: my ($count,undef) = split /:/,$data;
2447: $Keywords{$word}++ if ($count > $avecount);
2448: }
2449: untie %thesaurus_db;
2450: # Remove special values from %Keywords.
2451: foreach my $value ('total.count','average.count') {
2452: delete($Keywords{$value}) if (exists($Keywords{$value}));
2453: }
2454: return 1;
2455: }
2456:
2457: ###################################################
2458:
2459: =pod
2460:
2461: =item * &keyword($word)
2462:
2463: Returns true if $word is a keyword. A keyword is a word that appears more
2464: than the average number of times in the thesaurus database. Calls
2465: &initialize_keywords
2466:
2467: =cut
2468:
2469: ###################################################
2470:
2471: sub keyword {
2472: return if (!&initialize_keywords());
2473: my $word=lc(shift());
2474: $word=~s/\W//g;
2475: return exists($Keywords{$word});
2476: }
2477:
2478: ###############################################################
2479:
2480: =pod
2481:
2482: =item * &get_related_words()
2483:
2484: Look up a word in the thesaurus. Takes a scalar argument and returns
2485: an array of words. If the keyword is not in the thesaurus, an empty array
2486: will be returned. The order of the words returned is determined by the
2487: database which holds them.
2488:
2489: Uses global $thesaurus_db_file.
2490:
2491: =cut
2492:
2493: ###############################################################
2494: sub get_related_words {
2495: my $keyword = shift;
2496: my %thesaurus_db;
2497: if (! -e $thesaurus_db_file) {
2498: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file ".
2499: "failed because the file does not exist");
2500: return ();
2501: }
2502: if (! tie(%thesaurus_db,'GDBM_File',
2503: $thesaurus_db_file,&GDBM_READER(),0640)){
2504: return ();
2505: }
2506: my @Words=();
2507: my $count=0;
2508: if (exists($thesaurus_db{$keyword})) {
2509: # The first element is the number of times
2510: # the word appears. We do not need it now.
2511: my (undef,@RelatedWords) = (split(/:/,$thesaurus_db{$keyword}));
2512: my (undef,$mostfrequentcount)=split(/\,/,$RelatedWords[0]);
2513: my $threshold=$mostfrequentcount/10;
2514: foreach my $possibleword (@RelatedWords) {
2515: my ($word,$wordcount)=split(/\,/,$possibleword);
2516: if ($wordcount>$threshold) {
2517: push(@Words,$word);
2518: $count++;
2519: if ($count>10) { last; }
2520: }
2521: }
2522: }
2523: untie %thesaurus_db;
2524: return @Words;
2525: }
2526:
2527: =pod
2528:
2529: =back
2530:
2531: =cut
2532:
2533: # -------------------------------------------------------------- Plaintext name
2534: =pod
2535:
2536: =head1 User Name Functions
2537:
2538: =over 4
2539:
2540: =item * &plainname($uname,$udom,$first)
2541:
2542: Takes a users logon name and returns it as a string in
2543: "first middle last generation" form
2544: if $first is set to 'lastname' then it returns it as
2545: 'lastname generation, firstname middlename' if their is a lastname
2546:
2547: =cut
2548:
2549:
2550: ###############################################################
2551: sub plainname {
2552: my ($uname,$udom,$first)=@_;
2553: return if (!defined($uname) || !defined($udom));
2554: my %names=&getnames($uname,$udom);
2555: my $name=&Apache::lonnet::format_name($names{'firstname'},
2556: $names{'middlename'},
2557: $names{'lastname'},
2558: $names{'generation'},$first);
2559: $name=~s/^\s+//;
2560: $name=~s/\s+$//;
2561: $name=~s/\s+/ /g;
2562: if ($name !~ /\S/) { $name=$uname.':'.$udom; }
2563: return $name;
2564: }
2565:
2566: # -------------------------------------------------------------------- Nickname
2567: =pod
2568:
2569: =item * &nickname($uname,$udom)
2570:
2571: Gets a users name and returns it as a string as
2572:
2573: ""nickname""
2574:
2575: if the user has a nickname or
2576:
2577: "first middle last generation"
2578:
2579: if the user does not
2580:
2581: =cut
2582:
2583: sub nickname {
2584: my ($uname,$udom)=@_;
2585: return if (!defined($uname) || !defined($udom));
2586: my %names=&getnames($uname,$udom);
2587: my $name=$names{'nickname'};
2588: if ($name) {
2589: $name='"'.$name.'"';
2590: } else {
2591: $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
2592: $names{'lastname'}.' '.$names{'generation'};
2593: $name=~s/\s+$//;
2594: $name=~s/\s+/ /g;
2595: }
2596: return $name;
2597: }
2598:
2599: sub getnames {
2600: my ($uname,$udom)=@_;
2601: return if (!defined($uname) || !defined($udom));
2602: if ($udom eq 'public' && $uname eq 'public') {
2603: return ('lastname' => &mt('Public'));
2604: }
2605: my $id=$uname.':'.$udom;
2606: my ($names,$cached)=&Apache::lonnet::is_cached_new('namescache',$id);
2607: if ($cached) {
2608: return %{$names};
2609: } else {
2610: my %loadnames=&Apache::lonnet::get('environment',
2611: ['firstname','middlename','lastname','generation','nickname'],
2612: $udom,$uname);
2613: &Apache::lonnet::do_cache_new('namescache',$id,\%loadnames);
2614: return %loadnames;
2615: }
2616: }
2617:
2618: # -------------------------------------------------------------------- getemails
2619:
2620: =pod
2621:
2622: =item * &getemails($uname,$udom)
2623:
2624: Gets a user's email information and returns it as a hash with keys:
2625: notification, critnotification, permanentemail
2626:
2627: For notification and critnotification, values are comma-separated lists
2628: of e-mail addresses; for permanentemail, value is a single e-mail address.
2629:
2630:
2631: =cut
2632:
2633:
2634: sub getemails {
2635: my ($uname,$udom)=@_;
2636: if ($udom eq 'public' && $uname eq 'public') {
2637: return;
2638: }
2639: if (!$udom) { $udom=$env{'user.domain'}; }
2640: if (!$uname) { $uname=$env{'user.name'}; }
2641: my $id=$uname.':'.$udom;
2642: my ($names,$cached)=&Apache::lonnet::is_cached_new('emailscache',$id);
2643: if ($cached) {
2644: return %{$names};
2645: } else {
2646: my %loadnames=&Apache::lonnet::get('environment',
2647: ['notification','critnotification',
2648: 'permanentemail'],
2649: $udom,$uname);
2650: &Apache::lonnet::do_cache_new('emailscache',$id,\%loadnames);
2651: return %loadnames;
2652: }
2653: }
2654:
2655: sub flush_email_cache {
2656: my ($uname,$udom)=@_;
2657: if (!$udom) { $udom =$env{'user.domain'}; }
2658: if (!$uname) { $uname=$env{'user.name'}; }
2659: return if ($udom eq 'public' && $uname eq 'public');
2660: my $id=$uname.':'.$udom;
2661: &Apache::lonnet::devalidate_cache_new('emailscache',$id);
2662: }
2663:
2664: # ------------------------------------------------------------------ Screenname
2665:
2666: =pod
2667:
2668: =item * &screenname($uname,$udom)
2669:
2670: Gets a users screenname and returns it as a string
2671:
2672: =cut
2673:
2674: sub screenname {
2675: my ($uname,$udom)=@_;
2676: if ($uname eq $env{'user.name'} &&
2677: $udom eq $env{'user.domain'}) {return $env{'environment.screenname'};}
2678: my %names=&Apache::lonnet::get('environment',['screenname'],$udom,$uname);
2679: return $names{'screenname'};
2680: }
2681:
2682:
2683: # ------------------------------------------------------------- Message Wrapper
2684:
2685: sub messagewrapper {
2686: my ($link,$username,$domain,$subject,$text)=@_;
2687: return
2688: '<a href="/adm/email?compose=individual&'.
2689: 'recname='.$username.'&recdom='.$domain.
2690: '&subject='.&escape($subject).'&text='.&escape($text).'" '.
2691: 'title="'.&mt('Send message').'">'.$link.'</a>';
2692: }
2693: # --------------------------------------------------------------- Notes Wrapper
2694:
2695: sub noteswrapper {
2696: my ($link,$un,$do)=@_;
2697: return
2698: "<a href='/adm/email?recordftf=retrieve&recname=$un&recdom=$do'>$link</a>";
2699: }
2700: # ------------------------------------------------------------- Aboutme Wrapper
2701:
2702: sub aboutmewrapper {
2703: my ($link,$username,$domain,$target)=@_;
2704: if (!defined($username) && !defined($domain)) {
2705: return;
2706: }
2707: return '<a href="/adm/'.$domain.'/'.$username.'/aboutme"'.
2708: ($target?' target="$target"':'').' title="'.&mt("View this user's personal page").'">'.$link.'</a>';
2709: }
2710:
2711: # ------------------------------------------------------------ Syllabus Wrapper
2712:
2713:
2714: sub syllabuswrapper {
2715: my ($linktext,$coursedir,$domain,$fontcolor)=@_;
2716: if ($fontcolor) {
2717: $linktext='<font color="'.$fontcolor.'">'.$linktext.'</font>';
2718: }
2719: return qq{<a href="/public/$domain/$coursedir/syllabus">$linktext</a>};
2720: }
2721:
2722: sub track_student_link {
2723: my ($linktext,$sname,$sdom,$target,$start) = @_;
2724: my $link ="/adm/trackstudent?";
2725: my $title = 'View recent activity';
2726: if (defined($sname) && $sname !~ /^\s*$/ &&
2727: defined($sdom) && $sdom !~ /^\s*$/) {
2728: $link .= "selected_student=$sname:$sdom";
2729: $title .= ' of this student';
2730: }
2731: if (defined($target) && $target !~ /^\s*$/) {
2732: $target = qq{target="$target"};
2733: } else {
2734: $target = '';
2735: }
2736: if ($start) { $link.='&start='.$start; }
2737: $title = &mt($title);
2738: $linktext = &mt($linktext);
2739: return qq{<a href="$link" title="$title" $target>$linktext</a>}.
2740: &help_open_topic('View_recent_activity');
2741: }
2742:
2743: # ===================================================== Display a student photo
2744:
2745:
2746: sub student_image_tag {
2747: my ($domain,$user)=@_;
2748: my $imgsrc=&Apache::lonnet::studentphoto($domain,$user,'jpg');
2749: if (($imgsrc) && ($imgsrc ne '/adm/lonKaputt/lonlogo_broken.gif')) {
2750: return '<img src="'.$imgsrc.'" align="right" />';
2751: } else {
2752: return '';
2753: }
2754: }
2755:
2756: =pod
2757:
2758: =back
2759:
2760: =head1 Access .tab File Data
2761:
2762: =over 4
2763:
2764: =item * &languageids()
2765:
2766: returns list of all language ids
2767:
2768: =cut
2769:
2770: sub languageids {
2771: return sort(keys(%language));
2772: }
2773:
2774: =pod
2775:
2776: =item * &languagedescription()
2777:
2778: returns description of a specified language id
2779:
2780: =cut
2781:
2782: sub languagedescription {
2783: my $code=shift;
2784: return ($supported_language{$code}?'* ':'').
2785: $language{$code}.
2786: ($supported_language{$code}?' ('.&mt('interface available').')':'');
2787: }
2788:
2789: sub plainlanguagedescription {
2790: my $code=shift;
2791: return $language{$code};
2792: }
2793:
2794: sub supportedlanguagecode {
2795: my $code=shift;
2796: return $supported_language{$code};
2797: }
2798:
2799: =pod
2800:
2801: =item * ©rightids()
2802:
2803: returns list of all copyrights
2804:
2805: =cut
2806:
2807: sub copyrightids {
2808: return sort(keys(%cprtag));
2809: }
2810:
2811: =pod
2812:
2813: =item * ©rightdescription()
2814:
2815: returns description of a specified copyright id
2816:
2817: =cut
2818:
2819: sub copyrightdescription {
2820: return &mt($cprtag{shift(@_)});
2821: }
2822:
2823: =pod
2824:
2825: =item * &source_copyrightids()
2826:
2827: returns list of all source copyrights
2828:
2829: =cut
2830:
2831: sub source_copyrightids {
2832: return sort(keys(%scprtag));
2833: }
2834:
2835: =pod
2836:
2837: =item * &source_copyrightdescription()
2838:
2839: returns description of a specified source copyright id
2840:
2841: =cut
2842:
2843: sub source_copyrightdescription {
2844: return &mt($scprtag{shift(@_)});
2845: }
2846:
2847: =pod
2848:
2849: =item * &filecategories()
2850:
2851: returns list of all file categories
2852:
2853: =cut
2854:
2855: sub filecategories {
2856: return sort(keys(%category_extensions));
2857: }
2858:
2859: =pod
2860:
2861: =item * &filecategorytypes()
2862:
2863: returns list of file types belonging to a given file
2864: category
2865:
2866: =cut
2867:
2868: sub filecategorytypes {
2869: my ($cat) = @_;
2870: return @{$category_extensions{lc($cat)}};
2871: }
2872:
2873: =pod
2874:
2875: =item * &fileembstyle()
2876:
2877: returns embedding style for a specified file type
2878:
2879: =cut
2880:
2881: sub fileembstyle {
2882: return $fe{lc(shift(@_))};
2883: }
2884:
2885: sub filemimetype {
2886: return $fm{lc(shift(@_))};
2887: }
2888:
2889:
2890: sub filecategoryselect {
2891: my ($name,$value)=@_;
2892: return &select_form($value,$name,
2893: '' => &mt('Any category'),
2894: map { $_,$_ } sort(keys(%category_extensions)));
2895: }
2896:
2897: =pod
2898:
2899: =item * &filedescription()
2900:
2901: returns description for a specified file type
2902:
2903: =cut
2904:
2905: sub filedescription {
2906: my $file_description = $fd{lc(shift())};
2907: $file_description =~ s:([\[\]]):~$1:g;
2908: return &mt($file_description);
2909: }
2910:
2911: =pod
2912:
2913: =item * &filedescriptionex()
2914:
2915: returns description for a specified file type with
2916: extra formatting
2917:
2918: =cut
2919:
2920: sub filedescriptionex {
2921: my $ex=shift;
2922: my $file_description = $fd{lc($ex)};
2923: $file_description =~ s:([\[\]]):~$1:g;
2924: return '.'.$ex.' '.&mt($file_description);
2925: }
2926:
2927: # End of .tab access
2928: =pod
2929:
2930: =back
2931:
2932: =cut
2933:
2934: # ------------------------------------------------------------------ File Types
2935: sub fileextensions {
2936: return sort(keys(%fe));
2937: }
2938:
2939: # ----------------------------------------------------------- Display Languages
2940: # returns a hash with all desired display languages
2941: #
2942:
2943: sub display_languages {
2944: my %languages=();
2945: foreach my $lang (&preferred_languages()) {
2946: $languages{$lang}=1;
2947: }
2948: &get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']);
2949: if ($env{'form.displaylanguage'}) {
2950: foreach my $lang (split(/\s*(\,|\;|\:)\s*/,$env{'form.displaylanguage'})) {
2951: $languages{$lang}=1;
2952: }
2953: }
2954: return %languages;
2955: }
2956:
2957: sub preferred_languages {
2958: my @languages=();
2959: if (($env{'request.role.adv'}) && ($env{'form.languages'})) {
2960: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$env{'form.languages'}));
2961: }
2962: if ($env{'course.'.$env{'request.course.id'}.'.languages'}) {
2963: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,
2964: $env{'course.'.$env{'request.course.id'}.'.languages'}));
2965: }
2966:
2967: if ($env{'environment.languages'}) {
2968: @languages=(@languages,
2969: split(/\s*(\,|\;|\:)\s*/,$env{'environment.languages'}));
2970: }
2971: my $browser=$ENV{'HTTP_ACCEPT_LANGUAGE'};
2972: if ($browser) {
2973: my @browser =
2974: map { (split(/\s*;\s*/,$_))[0] } (split(/\s*,\s*/,$browser));
2975: push(@languages,@browser);
2976: }
2977:
2978: foreach my $domtype ($env{'user.domain'},$env{'request.role.domain'},
2979: $Apache::lonnet::perlvar{'lonDefDomain'}) {
2980: if ($domtype ne '') {
2981: my %domdefs = &Apache::lonnet::get_domain_defaults($domtype);
2982: if ($domdefs{'lang_def'} ne '') {
2983: push(@languages,$domdefs{'lang_def'});
2984: }
2985: }
2986: }
2987: # turn "en-ca" into "en-ca,en"
2988: my @genlanguages;
2989: foreach my $lang (@languages) {
2990: unless ($lang=~/\w/) { next; }
2991: push(@genlanguages,$lang);
2992: if ($lang=~/(\-|\_)/) {
2993: push(@genlanguages,(split(/(\-|\_)/,$lang))[0]);
2994: }
2995: }
2996: #uniqueify the languages list
2997: my %count;
2998: @genlanguages = map { $count{$_}++ == 0 ? $_ : () } @genlanguages;
2999: return @genlanguages;
3000: }
3001:
3002: sub languages {
3003: my ($possible_langs) = @_;
3004: my @preferred_langs = &preferred_languages();
3005: if (!ref($possible_langs)) {
3006: if( wantarray ) {
3007: return @preferred_langs;
3008: } else {
3009: return $preferred_langs[0];
3010: }
3011: }
3012: my %possibilities = map { $_ => 1 } (@$possible_langs);
3013: my @preferred_possibilities;
3014: foreach my $preferred_lang (@preferred_langs) {
3015: if (exists($possibilities{$preferred_lang})) {
3016: push(@preferred_possibilities, $preferred_lang);
3017: }
3018: }
3019: if( wantarray ) {
3020: return @preferred_possibilities;
3021: }
3022: return $preferred_possibilities[0];
3023: }
3024:
3025: ###############################################################
3026: ## Student Answer Attempts ##
3027: ###############################################################
3028:
3029: =pod
3030:
3031: =head1 Alternate Problem Views
3032:
3033: =over 4
3034:
3035: =item * &get_previous_attempt($symb, $username, $domain, $course,
3036: $getattempt, $regexp, $gradesub)
3037:
3038: Return string with previous attempt on problem. Arguments:
3039:
3040: =over 4
3041:
3042: =item * $symb: Problem, including path
3043:
3044: =item * $username: username of the desired student
3045:
3046: =item * $domain: domain of the desired student
3047:
3048: =item * $course: Course ID
3049:
3050: =item * $getattempt: Leave blank for all attempts, otherwise put
3051: something
3052:
3053: =item * $regexp: if string matches this regexp, the string will be
3054: sent to $gradesub
3055:
3056: =item * $gradesub: routine that processes the string if it matches $regexp
3057:
3058: =back
3059:
3060: The output string is a table containing all desired attempts, if any.
3061:
3062: =cut
3063:
3064: sub get_previous_attempt {
3065: my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub)=@_;
3066: my $prevattempts='';
3067: no strict 'refs';
3068: if ($symb) {
3069: my (%returnhash)=
3070: &Apache::lonnet::restore($symb,$course,$domain,$username);
3071: if ($returnhash{'version'}) {
3072: my %lasthash=();
3073: my $version;
3074: for ($version=1;$version<=$returnhash{'version'};$version++) {
3075: foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) {
3076: $lasthash{$key}=$returnhash{$version.':'.$key};
3077: }
3078: }
3079: $prevattempts=&start_data_table().&start_data_table_header_row();
3080: $prevattempts.='<th>'.&mt('History').'</th>';
3081: foreach my $key (sort(keys(%lasthash))) {
3082: my ($ign,@parts) = split(/\./,$key);
3083: if ($#parts > 0) {
3084: my $data=$parts[-1];
3085: pop(@parts);
3086: $prevattempts.='<th>'.&mt('Part ').join('.',@parts).'<br />'.$data.' </th>';
3087: } else {
3088: if ($#parts == 0) {
3089: $prevattempts.='<th>'.$parts[0].'</th>';
3090: } else {
3091: $prevattempts.='<th>'.$ign.'</th>';
3092: }
3093: }
3094: }
3095: $prevattempts.=&end_data_table_header_row();
3096: if ($getattempt eq '') {
3097: for ($version=1;$version<=$returnhash{'version'};$version++) {
3098: $prevattempts.=&start_data_table_row().
3099: '<td>'.&mt('Transaction [_1]',$version).'</td>';
3100: foreach my $key (sort(keys(%lasthash))) {
3101: my $value = &format_previous_attempt_value($key,
3102: $returnhash{$version.':'.$key});
3103: $prevattempts.='<td>'.$value.' </td>';
3104: }
3105: $prevattempts.=&end_data_table_row();
3106: }
3107: }
3108: $prevattempts.=&start_data_table_row().'<td>'.&mt('Current').'</td>';
3109: foreach my $key (sort(keys(%lasthash))) {
3110: my $value = &format_previous_attempt_value($key,$lasthash{$key});
3111: if ($key =~/$regexp$/ && (defined &$gradesub)) {$value = &$gradesub($value)}
3112: $prevattempts.='<td>'.$value.' </td>';
3113: }
3114: $prevattempts.= &end_data_table_row().&end_data_table();
3115: } else {
3116: $prevattempts=
3117: &start_data_table().&start_data_table_row().
3118: '<td>'.&mt('Nothing submitted - no attempts.').'</td>'.
3119: &end_data_table_row().&end_data_table();
3120: }
3121: } else {
3122: $prevattempts=
3123: &start_data_table().&start_data_table_row().
3124: '<td>'.&mt('No data.').'</td>'.
3125: &end_data_table_row().&end_data_table();
3126: }
3127: }
3128:
3129: sub format_previous_attempt_value {
3130: my ($key,$value) = @_;
3131: if ($key =~ /timestamp/) {
3132: $value = &Apache::lonlocal::locallocaltime($value);
3133: } elsif (ref($value) eq 'ARRAY') {
3134: $value = '('.join(', ', @{ $value }).')';
3135: } else {
3136: $value = &unescape($value);
3137: }
3138: return $value;
3139: }
3140:
3141:
3142: sub relative_to_absolute {
3143: my ($url,$output)=@_;
3144: my $parser=HTML::TokeParser->new(\$output);
3145: my $token;
3146: my $thisdir=$url;
3147: my @rlinks=();
3148: while ($token=$parser->get_token) {
3149: if ($token->[0] eq 'S') {
3150: if ($token->[1] eq 'a') {
3151: if ($token->[2]->{'href'}) {
3152: $rlinks[$#rlinks+1]=$token->[2]->{'href'};
3153: }
3154: } elsif ($token->[1] eq 'img' || $token->[1] eq 'embed' ) {
3155: $rlinks[$#rlinks+1]=$token->[2]->{'src'};
3156: } elsif ($token->[1] eq 'base') {
3157: $thisdir=$token->[2]->{'href'};
3158: }
3159: }
3160: }
3161: $thisdir=~s-/[^/]*$--;
3162: foreach my $link (@rlinks) {
3163: unless (($link=~/^http:\/\//i) ||
3164: ($link=~/^\//) ||
3165: ($link=~/^javascript:/i) ||
3166: ($link=~/^mailto:/i) ||
3167: ($link=~/^\#/)) {
3168: my $newlocation=&Apache::lonnet::hreflocation($thisdir,$link);
3169: $output=~s/(\"|\'|\=\s*)\Q$link\E(\"|\'|\s|\>)/$1$newlocation$2/;
3170: }
3171: }
3172: # -------------------------------------------------- Deal with Applet codebases
3173: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
3174: return $output;
3175: }
3176:
3177: =pod
3178:
3179: =item * &get_student_view()
3180:
3181: show a snapshot of what student was looking at
3182:
3183: =cut
3184:
3185: sub get_student_view {
3186: my ($symb,$username,$domain,$courseid,$target,$moreenv) = @_;
3187: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
3188: my (%form);
3189: my @elements=('symb','courseid','domain','username');
3190: foreach my $element (@elements) {
3191: $form{'grade_'.$element}=eval '$'.$element #'
3192: }
3193: if (defined($moreenv)) {
3194: %form=(%form,%{$moreenv});
3195: }
3196: if (defined($target)) { $form{'grade_target'} = $target; }
3197: $feedurl=&Apache::lonnet::clutter($feedurl);
3198: my ($userview,$response)=&Apache::lonnet::ssi_body($feedurl,%form);
3199: $userview=~s/\<body[^\>]*\>//gi;
3200: $userview=~s/\<\/body\>//gi;
3201: $userview=~s/\<html\>//gi;
3202: $userview=~s/\<\/html\>//gi;
3203: $userview=~s/\<head\>//gi;
3204: $userview=~s/\<\/head\>//gi;
3205: $userview=~s/action\s*\=/would_be_action\=/gi;
3206: $userview=&relative_to_absolute($feedurl,$userview);
3207: if (wantarray) {
3208: return ($userview,$response);
3209: } else {
3210: return $userview;
3211: }
3212: }
3213:
3214: sub get_student_view_with_retries {
3215: my ($symb,$retries,$username,$domain,$courseid,$target,$moreenv) = @_;
3216:
3217: my $ok = 0; # True if we got a good response.
3218: my $content;
3219: my $response;
3220:
3221: # Try to get the student_view done. within the retries count:
3222:
3223: do {
3224: ($content, $response) = &get_student_view($symb,$username,$domain,$courseid,$target,$moreenv);
3225: $ok = $response->is_success;
3226: if (!$ok) {
3227: &Apache::lonnet::logthis("Failed get_student_view_with_retries on $symb: ".$response->is_success.', '.$response->code.', '.$response->message);
3228: }
3229: $retries--;
3230: } while (!$ok && ($retries > 0));
3231:
3232: if (!$ok) {
3233: $content = ''; # On error return an empty content.
3234: }
3235: if (wantarray) {
3236: return ($content, $response);
3237: } else {
3238: return $content;
3239: }
3240: }
3241:
3242: =pod
3243:
3244: =item * &get_student_answers()
3245:
3246: show a snapshot of how student was answering problem
3247:
3248: =cut
3249:
3250: sub get_student_answers {
3251: my ($symb,$username,$domain,$courseid,%form) = @_;
3252: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
3253: my (%moreenv);
3254: my @elements=('symb','courseid','domain','username');
3255: foreach my $element (@elements) {
3256: $moreenv{'grade_'.$element}=eval '$'.$element #'
3257: }
3258: $moreenv{'grade_target'}='answer';
3259: %moreenv=(%form,%moreenv);
3260: $feedurl = &Apache::lonnet::clutter($feedurl);
3261: my $userview=&Apache::lonnet::ssi($feedurl,%moreenv);
3262: return $userview;
3263: }
3264:
3265: =pod
3266:
3267: =item * &submlink()
3268:
3269: Inputs: $text $uname $udom $symb $target
3270:
3271: Returns: A link to grades.pm such as to see the SUBM view of a student
3272:
3273: =cut
3274:
3275: ###############################################
3276: sub submlink {
3277: my ($text,$uname,$udom,$symb,$target)=@_;
3278: if (!($uname && $udom)) {
3279: (my $cursymb, my $courseid,$udom,$uname)=
3280: &Apache::lonnet::whichuser($symb);
3281: if (!$symb) { $symb=$cursymb; }
3282: }
3283: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
3284: $symb=&escape($symb);
3285: if ($target) { $target="target=\"$target\""; }
3286: return '<a href="/adm/grades?&command=submission&'.
3287: 'symb='.$symb.'&student='.$uname.
3288: '&userdom='.$udom.'" '.$target.'>'.$text.'</a>';
3289: }
3290: ##############################################
3291:
3292: =pod
3293:
3294: =item * &pgrdlink()
3295:
3296: Inputs: $text $uname $udom $symb $target
3297:
3298: Returns: A link to grades.pm such as to see the PGRD view of a student
3299:
3300: =cut
3301:
3302: ###############################################
3303: sub pgrdlink {
3304: my $link=&submlink(@_);
3305: $link=~s/(&command=submission)/$1&showgrading=yes/;
3306: return $link;
3307: }
3308: ##############################################
3309:
3310: =pod
3311:
3312: =item * &pprmlink()
3313:
3314: Inputs: $text $uname $udom $symb $target
3315:
3316: Returns: A link to parmset.pm such as to see the PPRM view of a
3317: student and a specific resource
3318:
3319: =cut
3320:
3321: ###############################################
3322: sub pprmlink {
3323: my ($text,$uname,$udom,$symb,$target)=@_;
3324: if (!($uname && $udom)) {
3325: (my $cursymb, my $courseid,$udom,$uname)=
3326: &Apache::lonnet::whichuser($symb);
3327: if (!$symb) { $symb=$cursymb; }
3328: }
3329: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
3330: $symb=&escape($symb);
3331: if ($target) { $target="target=\"$target\""; }
3332: return '<a href="/adm/parmset?command=set&'.
3333: 'symb='.$symb.'&uname='.$uname.
3334: '&udom='.$udom.'" '.$target.'>'.$text.'</a>';
3335: }
3336: ##############################################
3337:
3338: =pod
3339:
3340: =back
3341:
3342: =cut
3343:
3344: ###############################################
3345:
3346:
3347: sub timehash {
3348: my @ltime=localtime(shift);
3349: return ( 'seconds' => $ltime[0],
3350: 'minutes' => $ltime[1],
3351: 'hours' => $ltime[2],
3352: 'day' => $ltime[3],
3353: 'month' => $ltime[4]+1,
3354: 'year' => $ltime[5]+1900,
3355: 'weekday' => $ltime[6],
3356: 'dayyear' => $ltime[7]+1,
3357: 'dlsav' => $ltime[8] );
3358: }
3359:
3360: sub utc_string {
3361: my ($date)=@_;
3362: return strftime("%Y%m%dT%H%M%SZ",gmtime($date));
3363: }
3364:
3365: sub maketime {
3366: my %th=@_;
3367: return POSIX::mktime(
3368: ($th{'seconds'},$th{'minutes'},$th{'hours'},
3369: $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,-1));
3370: }
3371:
3372: #########################################
3373:
3374: sub findallcourses {
3375: my ($roles,$uname,$udom) = @_;
3376: my %roles;
3377: if (ref($roles)) { %roles = map { $_ => 1 } @{$roles}; }
3378: my %courses;
3379: my $now=time;
3380: if (!defined($uname)) {
3381: $uname = $env{'user.name'};
3382: }
3383: if (!defined($udom)) {
3384: $udom = $env{'user.domain'};
3385: }
3386: if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
3387: my %roleshash = &Apache::lonnet::dump('roles',$udom,$uname);
3388: if (!%roles) {
3389: %roles = (
3390: cc => 1,
3391: in => 1,
3392: ep => 1,
3393: ta => 1,
3394: cr => 1,
3395: st => 1,
3396: );
3397: }
3398: foreach my $entry (keys(%roleshash)) {
3399: my ($trole,$tend,$tstart) = split(/_/,$roleshash{$entry});
3400: if ($trole =~ /^cr/) {
3401: next if (!exists($roles{$trole}) && !exists($roles{'cr'}));
3402: } else {
3403: next if (!exists($roles{$trole}));
3404: }
3405: if ($tend) {
3406: next if ($tend < $now);
3407: }
3408: if ($tstart) {
3409: next if ($tstart > $now);
3410: }
3411: my ($cdom,$cnum,$sec,$cnumpart,$secpart,$role,$realsec);
3412: (undef,$cdom,$cnumpart,$secpart) = split(/\//,$entry);
3413: if ($secpart eq '') {
3414: ($cnum,$role) = split(/_/,$cnumpart);
3415: $sec = 'none';
3416: $realsec = '';
3417: } else {
3418: $cnum = $cnumpart;
3419: ($sec,$role) = split(/_/,$secpart);
3420: $realsec = $sec;
3421: }
3422: $courses{$cdom.'_'.$cnum}{$sec} = $trole.'/'.$cdom.'/'.$cnum.'/'.$realsec;
3423: }
3424: } else {
3425: foreach my $key (keys(%env)) {
3426: if ( $key=~m{^user\.role\.(\w+)\./($match_domain)/($match_courseid)/?(\w*)$} ||
3427: $key=~m{^user\.role\.(cr/$match_domain/$match_username/\w+)\./($match_domain)/($match_courseid)/?(\w*)$}) {
3428: my ($role,$cdom,$cnum,$sec) = ($1,$2,$3,$4);
3429: next if ($role eq 'ca' || $role eq 'aa');
3430: next if (%roles && !exists($roles{$role}));
3431: my ($starttime,$endtime)=split(/\./,$env{$key});
3432: my $active=1;
3433: if ($starttime) {
3434: if ($now<$starttime) { $active=0; }
3435: }
3436: if ($endtime) {
3437: if ($now>$endtime) { $active=0; }
3438: }
3439: if ($active) {
3440: if ($sec eq '') {
3441: $sec = 'none';
3442: }
3443: $courses{$cdom.'_'.$cnum}{$sec} =
3444: $role.'/'.$cdom.'/'.$cnum.'/'.$sec;
3445: }
3446: }
3447: }
3448: }
3449: return %courses;
3450: }
3451:
3452: ###############################################
3453:
3454: sub blockcheck {
3455: my ($setters,$activity,$uname,$udom) = @_;
3456:
3457: if (!defined($udom)) {
3458: $udom = $env{'user.domain'};
3459: }
3460: if (!defined($uname)) {
3461: $uname = $env{'user.name'};
3462: }
3463:
3464: # If uname and udom are for a course, check for blocks in the course.
3465:
3466: if (&Apache::lonnet::is_course($udom,$uname)) {
3467: my %records = &Apache::lonnet::dump('comm_block',$udom,$uname);
3468: my ($startblock,$endblock)=&get_blocks($setters,$activity,$udom,$uname);
3469: return ($startblock,$endblock);
3470: }
3471:
3472: my $startblock = 0;
3473: my $endblock = 0;
3474: my %live_courses = &findallcourses(undef,$uname,$udom);
3475:
3476: # If uname is for a user, and activity is course-specific, i.e.,
3477: # boards, chat or groups, check for blocking in current course only.
3478:
3479: if (($activity eq 'boards' || $activity eq 'chat' ||
3480: $activity eq 'groups') && ($env{'request.course.id'})) {
3481: foreach my $key (keys(%live_courses)) {
3482: if ($key ne $env{'request.course.id'}) {
3483: delete($live_courses{$key});
3484: }
3485: }
3486: }
3487:
3488: my $otheruser = 0;
3489: my %own_courses;
3490: if ((($uname ne $env{'user.name'})) || ($udom ne $env{'user.domain'})) {
3491: # Resource belongs to user other than current user.
3492: $otheruser = 1;
3493: # Gather courses for current user
3494: %own_courses =
3495: &findallcourses(undef,$env{'user.name'},$env{'user.domain'});
3496: }
3497:
3498: # Gather active course roles - course coordinator, instructor,
3499: # exam proctor, ta, student, or custom role.
3500:
3501: foreach my $course (keys(%live_courses)) {
3502: my ($cdom,$cnum);
3503: if ((defined($env{'course.'.$course.'.domain'})) && (defined($env{'course.'.$course.'.num'}))) {
3504: $cdom = $env{'course.'.$course.'.domain'};
3505: $cnum = $env{'course.'.$course.'.num'};
3506: } else {
3507: ($cdom,$cnum) = split(/_/,$course);
3508: }
3509: my $no_ownblock = 0;
3510: my $no_userblock = 0;
3511: if ($otheruser && $activity ne 'com') {
3512: # Check if current user has 'evb' priv for this
3513: if (defined($own_courses{$course})) {
3514: foreach my $sec (keys(%{$own_courses{$course}})) {
3515: my $checkrole = 'cm./'.$cdom.'/'.$cnum;
3516: if ($sec ne 'none') {
3517: $checkrole .= '/'.$sec;
3518: }
3519: if (&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) {
3520: $no_ownblock = 1;
3521: last;
3522: }
3523: }
3524: }
3525: # if they have 'evb' priv and are currently not playing student
3526: next if (($no_ownblock) &&
3527: ($env{'request.role'} !~ m{^st\./$cdom/$cnum}));
3528: }
3529: foreach my $sec (keys(%{$live_courses{$course}})) {
3530: my $checkrole = 'cm./'.$cdom.'/'.$cnum;
3531: if ($sec ne 'none') {
3532: $checkrole .= '/'.$sec;
3533: }
3534: if ($otheruser) {
3535: # Resource belongs to user other than current user.
3536: # Assemble privs for that user, and check for 'evb' priv.
3537: my ($trole,$tdom,$tnum,$tsec);
3538: my $entry = $live_courses{$course}{$sec};
3539: if ($entry =~ /^cr/) {
3540: ($trole,$tdom,$tnum,$tsec) =
3541: ($entry =~ m|^(cr/$match_domain/$match_username/\w+)\./($match_domain)/($match_username)/?(\w*)$|);
3542: } else {
3543: ($trole,$tdom,$tnum,$tsec) = split(/\//,$entry);
3544: }
3545: my ($spec,$area,$trest,%allroles,%userroles);
3546: $area = '/'.$tdom.'/'.$tnum;
3547: $trest = $tnum;
3548: if ($tsec ne '') {
3549: $area .= '/'.$tsec;
3550: $trest .= '/'.$tsec;
3551: }
3552: $spec = $trole.'.'.$area;
3553: if ($trole =~ /^cr/) {
3554: &Apache::lonnet::custom_roleprivs(\%allroles,$trole,
3555: $tdom,$spec,$trest,$area);
3556: } else {
3557: &Apache::lonnet::standard_roleprivs(\%allroles,$trole,
3558: $tdom,$spec,$trest,$area);
3559: }
3560: my ($author,$adv) = &Apache::lonnet::set_userprivs(\%userroles,\%allroles);
3561: if ($userroles{'user.priv.'.$checkrole} =~ /evb\&([^\:]*)/) {
3562: if ($1) {
3563: $no_userblock = 1;
3564: last;
3565: }
3566: }
3567: } else {
3568: # Resource belongs to current user
3569: # Check for 'evb' priv via lonnet::allowed().
3570: if (&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) {
3571: $no_ownblock = 1;
3572: last;
3573: }
3574: }
3575: }
3576: # if they have the evb priv and are currently not playing student
3577: next if (($no_ownblock) &&
3578: ($env{'request.role'} !~ m{^st\./\Q$cdom\E/\Q$cnum\E}));
3579: next if ($no_userblock);
3580:
3581: # Retrieve blocking times and identity of blocker for course
3582: # of specified user, unless user has 'evb' privilege.
3583:
3584: my ($start,$end)=&get_blocks($setters,$activity,$cdom,$cnum);
3585: if (($start != 0) &&
3586: (($startblock == 0) || ($startblock > $start))) {
3587: $startblock = $start;
3588: }
3589: if (($end != 0) &&
3590: (($endblock == 0) || ($endblock < $end))) {
3591: $endblock = $end;
3592: }
3593: }
3594: return ($startblock,$endblock);
3595: }
3596:
3597: sub get_blocks {
3598: my ($setters,$activity,$cdom,$cnum) = @_;
3599: my $startblock = 0;
3600: my $endblock = 0;
3601: my $course = $cdom.'_'.$cnum;
3602: $setters->{$course} = {};
3603: $setters->{$course}{'staff'} = [];
3604: $setters->{$course}{'times'} = [];
3605: my %records = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
3606: foreach my $record (keys(%records)) {
3607: my ($start,$end) = ($record =~ m/^(\d+)____(\d+)$/);
3608: if ($start <= time && $end >= time) {
3609: my ($staff_name,$staff_dom,$title,$blocks) =
3610: &parse_block_record($records{$record});
3611: if ($blocks->{$activity} eq 'on') {
3612: push(@{$$setters{$course}{'staff'}},[$staff_name,$staff_dom]);
3613: push(@{$$setters{$course}{'times'}}, [$start,$end]);
3614: if ( ($startblock == 0) || ($startblock > $start) ) {
3615: $startblock = $start;
3616: }
3617: if ( ($endblock == 0) || ($endblock < $end) ) {
3618: $endblock = $end;
3619: }
3620: }
3621: }
3622: }
3623: return ($startblock,$endblock);
3624: }
3625:
3626: sub parse_block_record {
3627: my ($record) = @_;
3628: my ($setuname,$setudom,$title,$blocks);
3629: if (ref($record) eq 'HASH') {
3630: ($setuname,$setudom) = split(/:/,$record->{'setter'});
3631: $title = &unescape($record->{'event'});
3632: $blocks = $record->{'blocks'};
3633: } else {
3634: my @data = split(/:/,$record,3);
3635: if (scalar(@data) eq 2) {
3636: $title = $data[1];
3637: ($setuname,$setudom) = split(/@/,$data[0]);
3638: } else {
3639: ($setuname,$setudom,$title) = @data;
3640: }
3641: $blocks = { 'com' => 'on' };
3642: }
3643: return ($setuname,$setudom,$title,$blocks);
3644: }
3645:
3646: sub build_block_table {
3647: my ($startblock,$endblock,$setters) = @_;
3648: my %lt = &Apache::lonlocal::texthash(
3649: 'cacb' => 'Currently active communication blocks',
3650: 'cour' => 'Course',
3651: 'dura' => 'Duration',
3652: 'blse' => 'Block set by'
3653: );
3654: my $output;
3655: $output = '<br />'.$lt{'cacb'}.':<br />';
3656: $output .= &start_data_table();
3657: $output .= '
3658: <tr>
3659: <th>'.$lt{'cour'}.'</th>
3660: <th>'.$lt{'dura'}.'</th>
3661: <th>'.$lt{'blse'}.'</th>
3662: </tr>
3663: ';
3664: foreach my $course (keys(%{$setters})) {
3665: my %courseinfo=&Apache::lonnet::coursedescription($course);
3666: for (my $i=0; $i<@{$$setters{$course}{staff}}; $i++) {
3667: my ($uname,$udom) = @{$$setters{$course}{staff}[$i]};
3668: my $fullname = &plainname($uname,$udom);
3669: if (defined($env{'user.name'}) && defined($env{'user.domain'})
3670: && $env{'user.name'} ne 'public'
3671: && $env{'user.domain'} ne 'public') {
3672: $fullname = &aboutmewrapper($fullname,$uname,$udom);
3673: }
3674: my ($openblock,$closeblock) = @{$$setters{$course}{times}[$i]};
3675: $openblock = &Apache::lonlocal::locallocaltime($openblock);
3676: $closeblock= &Apache::lonlocal::locallocaltime($closeblock);
3677: $output .= &Apache::loncommon::start_data_table_row().
3678: '<td>'.$courseinfo{'description'}.'</td>'.
3679: '<td>'.$openblock.' to '.$closeblock.'</td>'.
3680: '<td>'.$fullname.'</td>'.
3681: &Apache::loncommon::end_data_table_row();
3682: }
3683: }
3684: $output .= &end_data_table();
3685: }
3686:
3687: sub blocking_status {
3688: my ($activity,$uname,$udom) = @_;
3689: my %setters;
3690: my ($blocked,$output,$ownitem,$is_course);
3691: my ($startblock,$endblock)=&blockcheck(\%setters,$activity,$uname,$udom);
3692: if ($startblock && $endblock) {
3693: $blocked = 1;
3694: if (wantarray) {
3695: my $category;
3696: if ($activity eq 'boards') {
3697: $category = 'Discussion posts in this course';
3698: } elsif ($activity eq 'blogs') {
3699: $category = 'Blogs';
3700: } elsif ($activity eq 'port') {
3701: if (defined($uname) && defined($udom)) {
3702: if ($uname eq $env{'user.name'} &&
3703: $udom eq $env{'user.domain'}) {
3704: $ownitem = 1;
3705: }
3706: }
3707: $is_course = &Apache::lonnet::is_course($udom,$uname);
3708: if ($ownitem) {
3709: $category = 'Your portfolio files';
3710: } elsif ($is_course) {
3711: my $coursedesc;
3712: foreach my $course (keys(%setters)) {
3713: my %courseinfo =
3714: &Apache::lonnet::coursedescription($course);
3715: $coursedesc = $courseinfo{'description'};
3716: }
3717: $category = "Group files in the course '$coursedesc'";
3718: } else {
3719: $category = 'Portfolio files belonging to ';
3720: if ($env{'user.name'} eq 'public' &&
3721: $env{'user.domain'} eq 'public') {
3722: $category .= &plainname($uname,$udom);
3723: } else {
3724: $category .= &aboutmewrapper(&plainname($uname,$udom),$uname,$udom);
3725: }
3726: }
3727: } elsif ($activity eq 'groups') {
3728: $category = 'Groups in this course';
3729: }
3730: my $showstart = &Apache::lonlocal::locallocaltime($startblock);
3731: my $showend = &Apache::lonlocal::locallocaltime($endblock);
3732: $output = '<br />'.&mt('[_1] will be inaccessible between [_2] and [_3] because communication is being blocked.',$category,$showstart,$showend).'<br />';
3733: if (!($activity eq 'port' && !($ownitem) && !($is_course))) {
3734: $output .= &build_block_table($startblock,$endblock,\%setters);
3735: }
3736: }
3737: }
3738: if (wantarray) {
3739: return ($blocked,$output);
3740: } else {
3741: return $blocked;
3742: }
3743: }
3744:
3745: ###############################################
3746:
3747: =pod
3748:
3749: =head1 Domain Template Functions
3750:
3751: =over 4
3752:
3753: =item * &determinedomain()
3754:
3755: Inputs: $domain (usually will be undef)
3756:
3757: Returns: Determines which domain should be used for designs
3758:
3759: =cut
3760:
3761: ###############################################
3762: sub determinedomain {
3763: my $domain=shift;
3764: if (! $domain) {
3765: # Determine domain if we have not been given one
3766: $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
3767: if ($env{'user.domain'}) { $domain=$env{'user.domain'}; }
3768: if ($env{'request.role.domain'}) {
3769: $domain=$env{'request.role.domain'};
3770: }
3771: }
3772: return $domain;
3773: }
3774: ###############################################
3775:
3776: sub devalidate_domconfig_cache {
3777: my ($udom)=@_;
3778: &Apache::lonnet::devalidate_cache_new('domainconfig',$udom);
3779: }
3780:
3781: # ---------------------- Get domain configuration for a domain
3782: sub get_domainconf {
3783: my ($udom) = @_;
3784: my $cachetime=1800;
3785: my ($result,$cached)=&Apache::lonnet::is_cached_new('domainconfig',$udom);
3786: if (defined($cached)) { return %{$result}; }
3787:
3788: my %domconfig = &Apache::lonnet::get_dom('configuration',
3789: ['login','rolecolors'],$udom);
3790: my (%designhash,%legacy);
3791: if (keys(%domconfig) > 0) {
3792: if (ref($domconfig{'login'}) eq 'HASH') {
3793: if (keys(%{$domconfig{'login'}})) {
3794: foreach my $key (keys(%{$domconfig{'login'}})) {
3795: $designhash{$udom.'.login.'.$key}=$domconfig{'login'}{$key};
3796: }
3797: } else {
3798: $legacy{'login'} = 1;
3799: }
3800: } else {
3801: $legacy{'login'} = 1;
3802: }
3803: if (ref($domconfig{'rolecolors'}) eq 'HASH') {
3804: if (keys(%{$domconfig{'rolecolors'}})) {
3805: foreach my $role (keys(%{$domconfig{'rolecolors'}})) {
3806: if (ref($domconfig{'rolecolors'}{$role}) eq 'HASH') {
3807: foreach my $item (keys(%{$domconfig{'rolecolors'}{$role}})) {
3808: $designhash{$udom.'.'.$role.'.'.$item}=$domconfig{'rolecolors'}{$role}{$item};
3809: }
3810: }
3811: }
3812: } else {
3813: $legacy{'rolecolors'} = 1;
3814: }
3815: } else {
3816: $legacy{'rolecolors'} = 1;
3817: }
3818: if (keys(%legacy) > 0) {
3819: my %legacyhash = &get_legacy_domconf($udom);
3820: foreach my $item (keys(%legacyhash)) {
3821: if ($item =~ /^\Q$udom\E\.login/) {
3822: if ($legacy{'login'}) {
3823: $designhash{$item} = $legacyhash{$item};
3824: }
3825: } else {
3826: if ($legacy{'rolecolors'}) {
3827: $designhash{$item} = $legacyhash{$item};
3828: }
3829: }
3830: }
3831: }
3832: } else {
3833: %designhash = &get_legacy_domconf($udom);
3834: }
3835: &Apache::lonnet::do_cache_new('domainconfig',$udom,\%designhash,
3836: $cachetime);
3837: return %designhash;
3838: }
3839:
3840: sub get_legacy_domconf {
3841: my ($udom) = @_;
3842: my %legacyhash;
3843: my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors';
3844: my $designfile = $designdir.'/'.$udom.'.tab';
3845: if (-e $designfile) {
3846: if ( open (my $fh,"<$designfile") ) {
3847: while (my $line = <$fh>) {
3848: next if ($line =~ /^\#/);
3849: chomp($line);
3850: my ($key,$val)=(split(/\=/,$line));
3851: if ($val) { $legacyhash{$udom.'.'.$key}=$val; }
3852: }
3853: close($fh);
3854: }
3855: }
3856: if (-e '/home/httpd/html/adm/lonDomLogos/'.$udom.'.gif') {
3857: $legacyhash{$udom.'.login.domlogo'} = "/adm/lonDomLogos/$udom.gif";
3858: }
3859: return %legacyhash;
3860: }
3861:
3862: =pod
3863:
3864: =item * &domainlogo()
3865:
3866: Inputs: $domain (usually will be undef)
3867:
3868: Returns: A link to a domain logo, if the domain logo exists.
3869: If the domain logo does not exist, a description of the domain.
3870:
3871: =cut
3872:
3873: ###############################################
3874: sub domainlogo {
3875: my $domain = &determinedomain(shift);
3876: my %designhash = &get_domainconf($domain);
3877: # See if there is a logo
3878: if ($designhash{$domain.'.login.domlogo'} ne '') {
3879: my $imgsrc = $designhash{$domain.'.login.domlogo'};
3880: if ($imgsrc =~ m{^/(adm|res)/}) {
3881: if ($imgsrc =~ m{^/res/}) {
3882: my $local_name = &Apache::lonnet::filelocation('',$imgsrc);
3883: &Apache::lonnet::repcopy($local_name);
3884: }
3885: $imgsrc = &lonhttpdurl($imgsrc);
3886: }
3887: return '<img src="'.$imgsrc.'" alt="'.$domain.'" />';
3888: } elsif (defined(&Apache::lonnet::domain($domain,'description'))) {
3889: return &Apache::lonnet::domain($domain,'description');
3890: } else {
3891: return '';
3892: }
3893: }
3894: ##############################################
3895:
3896: =pod
3897:
3898: =item * &designparm()
3899:
3900: Inputs: $which parameter; $domain (usually will be undef)
3901:
3902: Returns: value of designparamter $which
3903:
3904: =cut
3905:
3906:
3907: ##############################################
3908: sub designparm {
3909: my ($which,$domain)=@_;
3910: if ($env{'browser.blackwhite'} eq 'on') {
3911: if ($which=~/\.(font|alink|vlink|link|textcol)$/) {
3912: return '#000000';
3913: }
3914: if ($which=~/\.(pgbg|sidebg|bgcol)$/) {
3915: return '#FFFFFF';
3916: }
3917: if ($which=~/\.tabbg$/) {
3918: return '#CCCCCC';
3919: }
3920: }
3921: if (exists($env{'environment.color.'.$which})) {
3922: return $env{'environment.color.'.$which};
3923: }
3924: $domain=&determinedomain($domain);
3925: my %domdesign = &get_domainconf($domain);
3926: my $output;
3927: if ($domdesign{$domain.'.'.$which} ne '') {
3928: $output = $domdesign{$domain.'.'.$which};
3929: } else {
3930: $output = $defaultdesign{$which};
3931: }
3932: if (($which =~ /^(student|coordinator|author|admin)\.img$/) ||
3933: ($which =~ /login\.(img|logo|domlogo|login)/)) {
3934: if ($output =~ m{^/(adm|res)/}) {
3935: if ($output =~ m{^/res/}) {
3936: my $local_name = &Apache::lonnet::filelocation('',$output);
3937: &Apache::lonnet::repcopy($local_name);
3938: }
3939: $output = &lonhttpdurl($output);
3940: }
3941: }
3942: return $output;
3943: }
3944:
3945: ###############################################
3946: ###############################################
3947:
3948: =pod
3949:
3950: =back
3951:
3952: =head1 HTML Helpers
3953:
3954: =over 4
3955:
3956: =item * &bodytag()
3957:
3958: Returns a uniform header for LON-CAPA web pages.
3959:
3960: Inputs:
3961:
3962: =over 4
3963:
3964: =item * $title, A title to be displayed on the page.
3965:
3966: =item * $function, the current role (can be undef).
3967:
3968: =item * $addentries, extra parameters for the <body> tag.
3969:
3970: =item * $bodyonly, if defined, only return the <body> tag.
3971:
3972: =item * $domain, if defined, force a given domain.
3973:
3974: =item * $forcereg, if page should register as content page (relevant for
3975: text interface only)
3976:
3977: =item * $customtitle, alternate text to use instead of $title
3978: in the title box that appears, this text
3979: is not auto translated like the $title is
3980:
3981: =item * $notopbar, if true, keep the 'what is this' info but remove the
3982: navigational links
3983:
3984: =item * $bgcolor, used to override the bgcolor on a webpage to a specific value
3985:
3986: =item * $notitle, if true keep the nav controls, but remove the title bar
3987:
3988: =item * $no_inline_link, if true and in remote mode, don't show the
3989: 'Switch To Inline Menu' link
3990:
3991: =item * $args, optional argument valid values are
3992: no_auto_mt_title -> prevents &mt()ing the title arg
3993: inherit_jsmath -> when creating popup window in a page,
3994: should it have jsmath forced on by the
3995: current page
3996:
3997: =back
3998:
3999: Returns: A uniform header for LON-CAPA web pages.
4000: If $bodyonly is nonzero, a string containing a <body> tag will be returned.
4001: If $bodyonly is undef or zero, an html string containing a <body> tag and
4002: other decorations will be returned.
4003:
4004: =cut
4005:
4006: sub bodytag {
4007: my ($title,$function,$addentries,$bodyonly,$domain,$forcereg,$customtitle,
4008: $notopbar,$bgcolor,$notitle,$no_inline_link,$args)=@_;
4009:
4010: if (!$args->{'no_auto_mt_title'}) { $title = &mt($title); }
4011:
4012: $function = &get_users_function() if (!$function);
4013: my $img = &designparm($function.'.img',$domain);
4014: my $font = &designparm($function.'.font',$domain);
4015: my $pgbg = $bgcolor || &designparm($function.'.pgbg',$domain);
4016:
4017: my %design = ( 'style' => 'margin-top: 0px',
4018: 'bgcolor' => $pgbg,
4019: 'text' => $font,
4020: 'alink' => &designparm($function.'.alink',$domain),
4021: 'vlink' => &designparm($function.'.vlink',$domain),
4022: 'link' => &designparm($function.'.link',$domain),);
4023: @design{keys(%$addentries)} = @$addentries{keys(%$addentries)};
4024:
4025: # role and realm
4026: my ($role,$realm) = split(/\./,$env{'request.role'},2);
4027: if ($role eq 'ca') {
4028: my ($rdom,$rname) = ($realm =~ m{^/($match_domain)/($match_username)$});
4029: $realm = &plainname($rname,$rdom);
4030: }
4031: # realm
4032: if ($env{'request.course.id'}) {
4033: if ($env{'request.role'} !~ /^cr/) {
4034: $role = &Apache::lonnet::plaintext($role,&course_type());
4035: }
4036: $realm = $env{'course.'.$env{'request.course.id'}.'.description'};
4037: } else {
4038: $role = &Apache::lonnet::plaintext($role);
4039: }
4040:
4041: if (!$realm) { $realm=' '; }
4042: # Set messages
4043: my $messages=&domainlogo($domain);
4044:
4045: my $extra_body_attr = &make_attr_string($forcereg,\%design);
4046:
4047: # construct main body tag
4048: my $bodytag = "<body $extra_body_attr>".
4049: &Apache::lontexconvert::init_math_support($args->{'inherit_jsmath'});
4050:
4051: if ($bodyonly) {
4052: return $bodytag;
4053: } elsif ($env{'browser.interface'} eq 'textual') {
4054: # Accessibility
4055:
4056: $bodytag.=&Apache::lonmenu::menubuttons($forcereg,$forcereg);
4057: if (!$notitle) {
4058: $bodytag.='<h1>LON-CAPA: '.$title.'</h1>';
4059: }
4060: return $bodytag;
4061: }
4062:
4063: my $name = &plainname($env{'user.name'},$env{'user.domain'});
4064: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4065: undef($role);
4066: } else {
4067: $name = &aboutmewrapper($name,$env{'user.name'},$env{'user.domain'});
4068: }
4069:
4070: my $roleinfo=(<<ENDROLE);
4071: <td class="LC_title_bar_who">
4072: <div class="LC_title_bar_name">
4073: $name
4074:
4075: </div>
4076: <div class="LC_title_bar_role">
4077: $role
4078: </div>
4079: <div class="LC_title_bar_realm">
4080: $realm
4081: </div>
4082: </td>
4083: ENDROLE
4084:
4085: my $titleinfo = '<span class="LC_title_bar_title">'.$title.'</span>';
4086: if ($customtitle) {
4087: $titleinfo = $customtitle;
4088: }
4089: #
4090: # Extra info if you are the DC
4091: my $dc_info = '';
4092: if ($env{'user.adv'} && exists($env{'user.role.dc./'.
4093: $env{'course.'.$env{'request.course.id'}.
4094: '.domain'}.'/'})) {
4095: my $cid = $env{'request.course.id'};
4096: $dc_info.= $cid.' '.$env{'course.'.$cid.'.internal.coursecode'};
4097: $dc_info =~ s/\s+$//;
4098: $dc_info = '('.$dc_info.')';
4099: }
4100:
4101: if (($env{'environment.remote'} eq 'off') || ($args->{'suppress_header_logos'})) {
4102: # No Remote
4103: if ($env{'request.state'} eq 'construct') {
4104: $forcereg=1;
4105: }
4106:
4107: if (!$customtitle && $env{'request.state'} eq 'construct') {
4108: # this is for resources; directories have customtitle, and crumbs
4109: # and select recent are created in lonpubdir.pm
4110: my ($uname,$thisdisfn)=
4111: ($env{'request.filename'} =~ m|^/home/([^/]+)/public_html/(.*)|);
4112: my $formaction='/priv/'.$uname.'/'.$thisdisfn;
4113: $formaction=~s/\/+/\//g;
4114:
4115: my $parentpath = '';
4116: my $lastitem = '';
4117: if ($thisdisfn =~ m-(.+/)([^/]*)$-) {
4118: $parentpath = $1;
4119: $lastitem = $2;
4120: } else {
4121: $lastitem = $thisdisfn;
4122: }
4123: $titleinfo =
4124: &Apache::loncommon::help_open_menu('','',3,'Authoring')
4125: .'<b>'.&mt('Construction Space').'</b>: '
4126: .'<form name="dirs" method="post" action="'.$formaction
4127: .'" target="_top"><tt><b>'
4128: .&Apache::lonhtmlcommon::crumbs($uname.'/'.$parentpath,'_top','/priv','','+1',1)."<font size=\"+1\">$lastitem</font></b></tt><br />"
4129: .&Apache::lonhtmlcommon::select_recent('construct','recent','this.form.action=this.form.recent.value;this.form.submit()')
4130: .'</form>'
4131: .&Apache::lonmenu::constspaceform();
4132: }
4133:
4134: my $titletable;
4135: if (!$notitle) {
4136: $titletable =
4137: '<table id="LC_title_bar">'.
4138: "<tr><td> $titleinfo $dc_info</td>".$roleinfo.
4139: '</tr></table>';
4140: }
4141: if ($notopbar) {
4142: $bodytag .= $titletable;
4143: } else {
4144: if ($env{'request.state'} eq 'construct') {
4145: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,$forcereg,
4146: $titletable);
4147: } else {
4148: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,$forcereg).
4149: $titletable;
4150: }
4151: }
4152: return $bodytag;
4153: }
4154:
4155: #
4156: # Top frame rendering, Remote is up
4157: #
4158:
4159: my $imgsrc = $img;
4160: if ($img =~ /^\/adm/) {
4161: $imgsrc = &lonhttpdurl($img);
4162: }
4163: my $upperleft='<img src="'.$imgsrc.'" alt="'.$function.'" />';
4164:
4165: # Explicit link to get inline menu
4166: my $menu= ($no_inline_link?''
4167: :'<br /><a href="/adm/remote?action=collapse">'.&mt('Switch to Inline Menu Mode').'</a>');
4168: #
4169: if ($notitle) {
4170: return $bodytag;
4171: }
4172: return(<<ENDBODY);
4173: $bodytag
4174: <table id="LC_title_bar" class="LC_with_remote">
4175: <tr><td class="LC_title_bar_role_logo">$upperleft</td>
4176: <td class="LC_title_bar_domain_logo">$messages </td>
4177: </tr>
4178: <tr><td>$titleinfo $dc_info $menu</td>
4179: $roleinfo
4180: </tr>
4181: </table>
4182: ENDBODY
4183: }
4184:
4185: sub make_attr_string {
4186: my ($register,$attr_ref) = @_;
4187:
4188: if ($attr_ref && !ref($attr_ref)) {
4189: die("addentries Must be a hash ref ".
4190: join(':',caller(1))." ".
4191: join(':',caller(0))." ");
4192: }
4193:
4194: if ($register) {
4195: my ($on_load,$on_unload);
4196: foreach my $key (keys(%{$attr_ref})) {
4197: if (lc($key) eq 'onload') {
4198: $on_load.=$attr_ref->{$key}.';';
4199: delete($attr_ref->{$key});
4200:
4201: } elsif (lc($key) eq 'onunload') {
4202: $on_unload.=$attr_ref->{$key}.';';
4203: delete($attr_ref->{$key});
4204: }
4205: }
4206: $attr_ref->{'onload'} =
4207: &Apache::lonmenu::loadevents(). $on_load;
4208: $attr_ref->{'onunload'}=
4209: &Apache::lonmenu::unloadevents().$on_unload;
4210: }
4211:
4212: # Accessibility font enhance
4213: if ($env{'browser.fontenhance'} eq 'on') {
4214: my $style;
4215: foreach my $key (keys(%{$attr_ref})) {
4216: if (lc($key) eq 'style') {
4217: $style.=$attr_ref->{$key}.';';
4218: delete($attr_ref->{$key});
4219: }
4220: }
4221: $attr_ref->{'style'}=$style.'; font-size: x-large;';
4222: }
4223:
4224: if ($env{'browser.blackwhite'} eq 'on') {
4225: delete($attr_ref->{'font'});
4226: delete($attr_ref->{'link'});
4227: delete($attr_ref->{'alink'});
4228: delete($attr_ref->{'vlink'});
4229: delete($attr_ref->{'bgcolor'});
4230: delete($attr_ref->{'background'});
4231: }
4232:
4233: my $attr_string;
4234: foreach my $attr (keys(%$attr_ref)) {
4235: $attr_string .= " $attr=\"".$attr_ref->{$attr}.'" ';
4236: }
4237: return $attr_string;
4238: }
4239:
4240:
4241: ###############################################
4242: ###############################################
4243:
4244: =pod
4245:
4246: =item * &endbodytag()
4247:
4248: Returns a uniform footer for LON-CAPA web pages.
4249:
4250: Inputs: 1 - optional reference to an args hash
4251: If in the hash, key for noredirectlink has a value which evaluates to true,
4252: a 'Continue' link is not displayed if the page contains an
4253: internal redirect in the <head></head> section,
4254: i.e., $env{'internal.head.redirect'} exists
4255:
4256: =cut
4257:
4258: sub endbodytag {
4259: my ($args) = @_;
4260: my $endbodytag='</body>';
4261: $endbodytag=&Apache::lontexconvert::jsMath_process()."\n".$endbodytag;
4262: if ( exists( $env{'internal.head.redirect'} ) ) {
4263: if (!(ref($args) eq 'HASH' && $args->{'noredirectlink'})) {
4264: $endbodytag=
4265: "<br /><a href=\"$env{'internal.head.redirect'}\">".
4266: &mt('Continue').'</a>'.
4267: $endbodytag;
4268: }
4269: }
4270: return $endbodytag;
4271: }
4272:
4273: =pod
4274:
4275: =item * &standard_css()
4276:
4277: Returns a style sheet
4278:
4279: Inputs: (all optional)
4280: domain -> force to color decorate a page for a specific
4281: domain
4282: function -> force usage of a specific rolish color scheme
4283: bgcolor -> override the default page bgcolor
4284:
4285: =cut
4286:
4287: sub standard_css {
4288: my ($function,$domain,$bgcolor) = @_;
4289: $function = &get_users_function() if (!$function);
4290: my $img = &designparm($function.'.img', $domain);
4291: my $tabbg = &designparm($function.'.tabbg', $domain);
4292: my $font = &designparm($function.'.font', $domain);
4293: my $sidebg = &designparm($function.'.sidebg',$domain);
4294: my $pgbg_or_bgcolor =
4295: $bgcolor ||
4296: &designparm($function.'.pgbg', $domain);
4297: my $pgbg = &designparm($function.'.pgbg', $domain);
4298: my $alink = &designparm($function.'.alink', $domain);
4299: my $vlink = &designparm($function.'.vlink', $domain);
4300: my $link = &designparm($function.'.link', $domain);
4301:
4302: my $sans = 'Verdana,Arial,Helvetica,sans-serif';
4303: my $mono = 'monospace';
4304: my $data_table_head = $tabbg;
4305: my $data_table_light = '#EEEEEE';
4306: my $data_table_dark = '#DDDDDD';
4307: my $data_table_darker = '#CCCCCC';
4308: my $data_table_highlight = '#FFFF00';
4309: my $mail_new = '#FFBB77';
4310: my $mail_new_hover = '#DD9955';
4311: my $mail_read = '#BBBB77';
4312: my $mail_read_hover = '#999944';
4313: my $mail_replied = '#AAAA88';
4314: my $mail_replied_hover = '#888855';
4315: my $mail_other = '#99BBBB';
4316: my $mail_other_hover = '#669999';
4317: my $table_header = '#DDDDDD';
4318: my $feedback_link_bg = '#BBBBBB';
4319:
4320: my $border = ($env{'browser.type'} eq 'explorer' ||
4321: $env{'browser.type'} eq 'safari' ) ? '0px 2px 0px 2px'
4322: : '0px 3px 0px 4px';
4323:
4324:
4325: return <<END;
4326: h1, h2, h3, th { font-family: $sans }
4327: a:focus { color: red; background: yellow }
4328: table.thinborder,
4329:
4330: table.thinborder tr th {
4331: border-style: solid;
4332: border-width: 1px;
4333: background: $tabbg;
4334: }
4335: table.thinborder tr td {
4336: border-style: solid;
4337: border-width: 1px
4338: }
4339:
4340: form, .inline { display: inline; }
4341: .center { text-align: center; }
4342: .LC_filename {font-family: $mono; white-space:pre;}
4343: .LC_error {
4344: color: red;
4345: font-size: larger;
4346: }
4347: .LC_warning,
4348: .LC_diff_removed {
4349: color: red;
4350: }
4351:
4352: .LC_info,
4353: .LC_success,
4354: .LC_diff_added {
4355: color: green;
4356: }
4357: .LC_unknown {
4358: color: yellow;
4359: }
4360:
4361: .LC_icon {
4362: border: 0px;
4363: }
4364: .LC_indexer_icon {
4365: border: 0px;
4366: height: 22px;
4367: }
4368: .LC_docs_spacer {
4369: width: 25px;
4370: height: 1px;
4371: border: 0px;
4372: }
4373:
4374: .LC_internal_info {
4375: color: #999;
4376: }
4377:
4378: table.LC_pastsubmission {
4379: border: 1px solid black;
4380: margin: 2px;
4381: }
4382:
4383: table#LC_top_nav, table#LC_menubuttons,table#LC_nav_location {
4384: width: 100%;
4385: background: $pgbg;
4386: border: 2px;
4387: border-collapse: separate;
4388: padding: 0px;
4389: }
4390:
4391: table#LC_title_bar, table.LC_breadcrumbs,
4392: table#LC_title_bar.LC_with_remote {
4393: width: 100%;
4394: border-color: $pgbg;
4395: border-style: solid;
4396: border-width: $border;
4397:
4398: background: $pgbg;
4399: font-family: $sans;
4400: border-collapse: collapse;
4401: padding: 0px;
4402: }
4403:
4404: table.LC_docs_path {
4405: width: 100%;
4406: border: 0;
4407: background: $pgbg;
4408: font-family: $sans;
4409: border-collapse: collapse;
4410: padding: 0px;
4411: }
4412:
4413: table#LC_title_bar td {
4414: background: $tabbg;
4415: }
4416: table#LC_title_bar td.LC_title_bar_who {
4417: background: $tabbg;
4418: color: $font;
4419: font: small $sans;
4420: text-align: right;
4421: }
4422: span.LC_metadata {
4423: font-family: $sans;
4424: }
4425: span.LC_title_bar_title {
4426: font: bold x-large $sans;
4427: }
4428: table#LC_title_bar td.LC_title_bar_domain_logo {
4429: background: $sidebg;
4430: text-align: right;
4431: padding: 0px;
4432: }
4433: table#LC_title_bar td.LC_title_bar_role_logo {
4434: background: $sidebg;
4435: padding: 0px;
4436: }
4437:
4438: table#LC_menubuttons_mainmenu {
4439: width: 100%;
4440: border: 0px;
4441: border-spacing: 1px;
4442: padding: 0px 1px;
4443: margin: 0px;
4444: border-collapse: separate;
4445: }
4446: table#LC_menubuttons img, table#LC_menubuttons_mainmenu img {
4447: border: 0px;
4448: }
4449: table#LC_top_nav td {
4450: background: $tabbg;
4451: border: 0px;
4452: font-size: small;
4453: }
4454: table#LC_top_nav td a, div#LC_top_nav a {
4455: color: $font;
4456: font-family: $sans;
4457: }
4458: table#LC_top_nav td.LC_top_nav_logo {
4459: background: $tabbg;
4460: text-align: left;
4461: white-space: nowrap;
4462: width: 31px;
4463: }
4464: table#LC_top_nav td.LC_top_nav_logo img {
4465: border: 0px;
4466: vertical-align: bottom;
4467: }
4468: table#LC_top_nav td.LC_top_nav_exit,
4469: table#LC_top_nav td.LC_top_nav_help {
4470: width: 2.0em;
4471: }
4472: table#LC_top_nav td.LC_top_nav_login {
4473: width: 4.0em;
4474: text-align: center;
4475: }
4476: table.LC_breadcrumbs td, table.LC_docs_path td {
4477: background: $tabbg;
4478: color: $font;
4479: font-family: $sans;
4480: font-size: smaller;
4481: }
4482: table.LC_breadcrumbs td.LC_breadcrumbs_component,
4483: table.LC_docs_path td.LC_docs_path_component {
4484: background: $tabbg;
4485: color: $font;
4486: font-family: $sans;
4487: font-size: larger;
4488: text-align: right;
4489: }
4490: td.LC_table_cell_checkbox {
4491: text-align: center;
4492: }
4493:
4494: table#LC_mainmenu td.LC_mainmenu_column {
4495: vertical-align: top;
4496: }
4497:
4498: .LC_menubuttons_inline_text {
4499: color: $font;
4500: font-family: $sans;
4501: font-size: smaller;
4502: }
4503:
4504: .LC_menubuttons_link {
4505: text-decoration: none;
4506: }
4507:
4508: .LC_menubuttons_category {
4509: color: $font;
4510: background: $pgbg;
4511: font-family: $sans;
4512: font-size: larger;
4513: font-weight: bold;
4514: }
4515:
4516: td.LC_menubuttons_text {
4517: width: 90%;
4518: color: $font;
4519: font-family: $sans;
4520: }
4521:
4522: td.LC_menubuttons_img {
4523: }
4524:
4525: .LC_current_location {
4526: font-family: $sans;
4527: background: $tabbg;
4528: }
4529: .LC_new_mail {
4530: font-family: $sans;
4531: background: $tabbg;
4532: font-weight: bold;
4533: }
4534:
4535: .LC_rolesmenu_is {
4536: font-family: $sans;
4537: }
4538:
4539: .LC_rolesmenu_selected {
4540: font-family: $sans;
4541: }
4542:
4543: .LC_rolesmenu_future {
4544: font-family: $sans;
4545: }
4546:
4547:
4548: .LC_rolesmenu_will {
4549: font-family: $sans;
4550: }
4551:
4552: .LC_rolesmenu_will_not {
4553: font-family: $sans;
4554: }
4555:
4556: .LC_rolesmenu_expired {
4557: font-family: $sans;
4558: }
4559:
4560: .LC_rolesinfo {
4561: font-family: $sans;
4562: }
4563:
4564: .LC_dropadd_labeltext {
4565: font-family: $sans;
4566: text-align: right;
4567: }
4568:
4569: .LC_preferences_labeltext {
4570: font-family: $sans;
4571: text-align: right;
4572: }
4573:
4574: .LC_roleslog_note {
4575: font-size: smaller;
4576: }
4577:
4578: table.LC_aboutme_port {
4579: border: 0px;
4580: border-collapse: collapse;
4581: border-spacing: 0px;
4582: }
4583: table.LC_data_table, table.LC_mail_list {
4584: border: 1px solid #000000;
4585: border-collapse: separate;
4586: border-spacing: 1px;
4587: background: $pgbg;
4588: }
4589: .LC_data_table_dense {
4590: font-size: small;
4591: }
4592: table.LC_nested_outer {
4593: border: 1px solid #000000;
4594: border-collapse: collapse;
4595: border-spacing: 0px;
4596: width: 100%;
4597: }
4598: table.LC_nested {
4599: border: 0px;
4600: border-collapse: collapse;
4601: border-spacing: 0px;
4602: width: 100%;
4603: }
4604: table.LC_data_table tr th, table.LC_calendar tr th, table.LC_mail_list tr th,
4605: table.LC_prior_tries tr th {
4606: font-weight: bold;
4607: background-color: $data_table_head;
4608: font-size: smaller;
4609: }
4610: table.LC_data_table tr.LC_odd_row > td,
4611: table.LC_aboutme_port tr td {
4612: background-color: $data_table_light;
4613: padding: 2px;
4614: }
4615: table.LC_data_table tr.LC_even_row > td,
4616: table.LC_aboutme_port tr.LC_even_row td {
4617: background-color: $data_table_dark;
4618: }
4619: table.LC_data_table tr.LC_data_table_highlight td {
4620: background-color: $data_table_darker;
4621: }
4622: table.LC_data_table tr td.LC_leftcol_header {
4623: background-color: $data_table_head;
4624: font-weight: bold;
4625: }
4626: table.LC_data_table tr.LC_empty_row td,
4627: table.LC_nested tr.LC_empty_row td {
4628: background-color: #FFFFFF;
4629: font-weight: bold;
4630: font-style: italic;
4631: text-align: center;
4632: padding: 8px;
4633: }
4634: table.LC_nested tr.LC_empty_row td {
4635: padding: 4ex
4636: }
4637: table.LC_nested_outer tr th {
4638: font-weight: bold;
4639: background-color: $data_table_head;
4640: font-size: smaller;
4641: border-bottom: 1px solid #000000;
4642: }
4643: table.LC_nested_outer tr td.LC_subheader {
4644: background-color: $data_table_head;
4645: font-weight: bold;
4646: font-size: small;
4647: border-bottom: 1px solid #000000;
4648: text-align: right;
4649: }
4650: table.LC_nested tr.LC_info_row td {
4651: background-color: #CCC;
4652: font-weight: bold;
4653: font-size: small;
4654: text-align: center;
4655: }
4656: table.LC_nested tr.LC_info_row td.LC_left_item,
4657: table.LC_nested_outer tr th.LC_left_item {
4658: text-align: left;
4659: }
4660: table.LC_nested td {
4661: background-color: #FFF;
4662: font-size: small;
4663: }
4664: table.LC_nested_outer tr th.LC_right_item,
4665: table.LC_nested tr.LC_info_row td.LC_right_item,
4666: table.LC_nested tr.LC_odd_row td.LC_right_item,
4667: table.LC_nested tr td.LC_right_item {
4668: text-align: right;
4669: }
4670:
4671: table.LC_nested tr.LC_odd_row td {
4672: background-color: #EEE;
4673: }
4674:
4675: table.LC_createuser {
4676: }
4677:
4678: table.LC_createuser tr.LC_section_row td {
4679: font-size: smaller;
4680: }
4681:
4682: table.LC_createuser tr.LC_info_row td {
4683: background-color: #CCC;
4684: font-weight: bold;
4685: text-align: center;
4686: }
4687:
4688: table.LC_calendar {
4689: border: 1px solid #000000;
4690: border-collapse: collapse;
4691: }
4692: table.LC_calendar_pickdate {
4693: font-size: xx-small;
4694: }
4695: table.LC_calendar tr td {
4696: border: 1px solid #000000;
4697: vertical-align: top;
4698: }
4699: table.LC_calendar tr td.LC_calendar_day_empty {
4700: background-color: $data_table_dark;
4701: }
4702: table.LC_calendar tr td.LC_calendar_day_current {
4703: background-color: $data_table_highlight;
4704: }
4705:
4706: table.LC_mail_list tr.LC_mail_new {
4707: background-color: $mail_new;
4708: }
4709: table.LC_mail_list tr.LC_mail_new:hover {
4710: background-color: $mail_new_hover;
4711: }
4712: table.LC_mail_list tr.LC_mail_read {
4713: background-color: $mail_read;
4714: }
4715: table.LC_mail_list tr.LC_mail_read:hover {
4716: background-color: $mail_read_hover;
4717: }
4718: table.LC_mail_list tr.LC_mail_replied {
4719: background-color: $mail_replied;
4720: }
4721: table.LC_mail_list tr.LC_mail_replied:hover {
4722: background-color: $mail_replied_hover;
4723: }
4724: table.LC_mail_list tr.LC_mail_other {
4725: background-color: $mail_other;
4726: }
4727: table.LC_mail_list tr.LC_mail_other:hover {
4728: background-color: $mail_other_hover;
4729: }
4730: table.LC_mail_list tr.LC_mail_even {
4731: }
4732: table.LC_mail_list tr.LC_mail_odd {
4733: }
4734:
4735:
4736: table#LC_portfolio_actions {
4737: width: auto;
4738: background: $pgbg;
4739: border: 0px;
4740: border-spacing: 2px 2px;
4741: padding: 0px;
4742: margin: 0px;
4743: border-collapse: separate;
4744: }
4745: table#LC_portfolio_actions td.LC_label {
4746: background: $tabbg;
4747: text-align: right;
4748: }
4749: table#LC_portfolio_actions td.LC_value {
4750: background: $tabbg;
4751: }
4752:
4753: table#LC_cstr_controls {
4754: width: 100%;
4755: border-collapse: collapse;
4756: }
4757: table#LC_cstr_controls tr td {
4758: border: 4px solid $pgbg;
4759: padding: 4px;
4760: text-align: center;
4761: background: $tabbg;
4762: }
4763: table#LC_cstr_controls tr th {
4764: border: 4px solid $pgbg;
4765: background: $table_header;
4766: text-align: center;
4767: font-family: $sans;
4768: font-size: smaller;
4769: }
4770:
4771: table#LC_browser {
4772:
4773: }
4774: table#LC_browser tr th {
4775: background: $table_header;
4776: }
4777: table#LC_browser tr td {
4778: padding: 2px;
4779: }
4780: table#LC_browser tr.LC_browser_file,
4781: table#LC_browser tr.LC_browser_file_published {
4782: background: #CCFF88;
4783: }
4784: table#LC_browser tr.LC_browser_file_locked,
4785: table#LC_browser tr.LC_browser_file_unpublished {
4786: background: #FFAA99;
4787: }
4788: table#LC_browser tr.LC_browser_file_obsolete {
4789: background: #AAAAAA;
4790: }
4791: table#LC_browser tr.LC_browser_file_modified,
4792: table#LC_browser tr.LC_browser_file_metamodified {
4793: background: #FFFF77;
4794: }
4795: table#LC_browser tr.LC_browser_folder {
4796: background: #CCCCFF;
4797: }
4798: span.LC_current_location {
4799: font-size: x-large;
4800: background: $pgbg;
4801: }
4802:
4803: span.LC_parm_menu_item {
4804: font-size: larger;
4805: font-family: $sans;
4806: }
4807: span.LC_parm_scope_all {
4808: color: red;
4809: }
4810: span.LC_parm_scope_folder {
4811: color: green;
4812: }
4813: span.LC_parm_scope_resource {
4814: color: orange;
4815: }
4816: span.LC_parm_part {
4817: color: blue;
4818: }
4819: span.LC_parm_folder, span.LC_parm_symb {
4820: font-size: x-small;
4821: font-family: $mono;
4822: color: #AAAAAA;
4823: }
4824:
4825: td.LC_parm_overview_level_menu, td.LC_parm_overview_map_menu,
4826: td.LC_parm_overview_parm_selectors, td.LC_parm_overview_parm_restrictions {
4827: border: 1px solid black;
4828: border-collapse: collapse;
4829: }
4830: table.LC_parm_overview_restrictions td {
4831: border-width: 1px 4px 1px 4px;
4832: border-style: solid;
4833: border-color: $pgbg;
4834: text-align: center;
4835: }
4836: table.LC_parm_overview_restrictions th {
4837: background: $tabbg;
4838: border-width: 1px 4px 1px 4px;
4839: border-style: solid;
4840: border-color: $pgbg;
4841: }
4842: table#LC_helpmenu {
4843: border: 0px;
4844: height: 55px;
4845: border-spacing: 0px;
4846: }
4847:
4848: table#LC_helpmenu fieldset legend {
4849: font-size: larger;
4850: font-weight: bold;
4851: }
4852: table#LC_helpmenu_links {
4853: width: 100%;
4854: border: 1px solid black;
4855: background: $pgbg;
4856: padding: 0px;
4857: border-spacing: 1px;
4858: }
4859: table#LC_helpmenu_links tr td {
4860: padding: 1px;
4861: background: $tabbg;
4862: text-align: center;
4863: font-weight: bold;
4864: }
4865:
4866: table#LC_helpmenu_links a:link, table#LC_helpmenu_links a:visited,
4867: table#LC_helpmenu_links a:active {
4868: text-decoration: none;
4869: color: $font;
4870: }
4871: table#LC_helpmenu_links a:hover {
4872: text-decoration: underline;
4873: color: $vlink;
4874: }
4875:
4876: .LC_chrt_popup_exists {
4877: border: 1px solid #339933;
4878: margin: -1px;
4879: }
4880: .LC_chrt_popup_up {
4881: border: 1px solid yellow;
4882: margin: -1px;
4883: }
4884: .LC_chrt_popup {
4885: border: 1px solid #8888FF;
4886: background: #CCCCFF;
4887: }
4888: table.LC_pick_box {
4889: border-collapse: separate;
4890: background: white;
4891: border: 1px solid black;
4892: border-spacing: 1px;
4893: }
4894: table.LC_pick_box td.LC_pick_box_title {
4895: background: $tabbg;
4896: font-weight: bold;
4897: text-align: right;
4898: width: 184px;
4899: padding: 8px;
4900: }
4901: table.LC_pick_box td.LC_selfenroll_pick_box_title {
4902: background: $tabbg;
4903: font-weight: bold;
4904: text-align: right;
4905: width: 350px;
4906: padding: 8px;
4907: }
4908:
4909: table.LC_pick_box td.LC_pick_box_value {
4910: text-align: left;
4911: padding: 8px;
4912: }
4913: table.LC_pick_box td.LC_pick_box_select {
4914: text-align: left;
4915: padding: 8px;
4916: }
4917: table.LC_pick_box td.LC_pick_box_separator {
4918: padding: 0px;
4919: height: 1px;
4920: background: black;
4921: }
4922: table.LC_pick_box td.LC_pick_box_submit {
4923: text-align: right;
4924: }
4925: table.LC_pick_box td.LC_evenrow_value {
4926: text-align: left;
4927: padding: 8px;
4928: background-color: $data_table_light;
4929: }
4930: table.LC_pick_box td.LC_oddrow_value {
4931: text-align: left;
4932: padding: 8px;
4933: background-color: $data_table_light;
4934: }
4935: table.LC_helpform_receipt {
4936: width: 620px;
4937: border-collapse: separate;
4938: background: white;
4939: border: 1px solid black;
4940: border-spacing: 1px;
4941: }
4942: table.LC_helpform_receipt td.LC_pick_box_title {
4943: background: $tabbg;
4944: font-weight: bold;
4945: text-align: right;
4946: width: 184px;
4947: padding: 8px;
4948: }
4949: table.LC_helpform_receipt td.LC_evenrow_value {
4950: text-align: left;
4951: padding: 8px;
4952: background-color: $data_table_light;
4953: }
4954: table.LC_helpform_receipt td.LC_oddrow_value {
4955: text-align: left;
4956: padding: 8px;
4957: background-color: $data_table_light;
4958: }
4959: table.LC_helpform_receipt td.LC_pick_box_separator {
4960: padding: 0px;
4961: height: 1px;
4962: background: black;
4963: }
4964: span.LC_helpform_receipt_cat {
4965: font-weight: bold;
4966: }
4967: table.LC_group_priv_box {
4968: background: white;
4969: border: 1px solid black;
4970: border-spacing: 1px;
4971: }
4972: table.LC_group_priv_box td.LC_pick_box_title {
4973: background: $tabbg;
4974: font-weight: bold;
4975: text-align: right;
4976: width: 184px;
4977: }
4978: table.LC_group_priv_box td.LC_groups_fixed {
4979: background: $data_table_light;
4980: text-align: center;
4981: }
4982: table.LC_group_priv_box td.LC_groups_optional {
4983: background: $data_table_dark;
4984: text-align: center;
4985: }
4986: table.LC_group_priv_box td.LC_groups_functionality {
4987: background: $data_table_darker;
4988: text-align: center;
4989: font-weight: bold;
4990: }
4991: table.LC_group_priv td {
4992: text-align: left;
4993: padding: 0px;
4994: }
4995:
4996: table.LC_notify_front_page {
4997: background: white;
4998: border: 1px solid black;
4999: padding: 8px;
5000: }
5001: table.LC_notify_front_page td {
5002: padding: 8px;
5003: }
5004: .LC_navbuttons {
5005: margin: 2ex 0ex 2ex 0ex;
5006: }
5007: .LC_topic_bar {
5008: font-family: $sans;
5009: font-weight: bold;
5010: width: 100%;
5011: background: $tabbg;
5012: vertical-align: middle;
5013: margin: 2ex 0ex 2ex 0ex;
5014: }
5015: .LC_topic_bar span {
5016: vertical-align: middle;
5017: }
5018: .LC_topic_bar img {
5019: vertical-align: bottom;
5020: }
5021: table.LC_course_group_status {
5022: margin: 20px;
5023: }
5024: table.LC_status_selector td {
5025: vertical-align: top;
5026: text-align: center;
5027: padding: 4px;
5028: }
5029: table.LC_descriptive_input td.LC_description {
5030: vertical-align: top;
5031: text-align: right;
5032: font-weight: bold;
5033: }
5034: div.LC_feedback_link {
5035: clear: both;
5036: background: white;
5037: width: 100%;
5038: }
5039: span.LC_feedback_link {
5040: background: $feedback_link_bg;
5041: font-size: larger;
5042: }
5043: span.LC_message_link {
5044: background: $feedback_link_bg;
5045: font-size: larger;
5046: position: absolute;
5047: right: 1em;
5048: }
5049:
5050: table.LC_prior_tries {
5051: border: 1px solid #000000;
5052: border-collapse: separate;
5053: border-spacing: 1px;
5054: }
5055:
5056: table.LC_prior_tries td {
5057: padding: 2px;
5058: }
5059:
5060: .LC_answer_correct {
5061: background: #AAFFAA;
5062: color: black;
5063: }
5064: .LC_answer_charged_try {
5065: background: #FFAAAA ! important;
5066: color: black;
5067: }
5068: .LC_answer_not_charged_try,
5069: .LC_answer_no_grade,
5070: .LC_answer_late {
5071: background: #FFFFAA;
5072: color: black;
5073: }
5074: .LC_answer_previous {
5075: background: #AAAAFF;
5076: color: black;
5077: }
5078: .LC_answer_no_message {
5079: background: #FFFFFF;
5080: color: black;
5081: }
5082: .LC_answer_unknown {
5083: background: orange;
5084: color: black;
5085: }
5086:
5087:
5088: span.LC_prior_numerical,
5089: span.LC_prior_string,
5090: span.LC_prior_custom,
5091: span.LC_prior_reaction,
5092: span.LC_prior_math {
5093: font-family: monospace;
5094: white-space: pre;
5095: }
5096:
5097: span.LC_prior_string {
5098: font-family: monospace;
5099: white-space: pre;
5100: }
5101:
5102: table.LC_prior_option {
5103: width: 100%;
5104: border-collapse: collapse;
5105: }
5106: table.LC_prior_rank, table.LC_prior_match {
5107: border-collapse: collapse;
5108: }
5109: table.LC_prior_option tr td,
5110: table.LC_prior_rank tr td,
5111: table.LC_prior_match tr td {
5112: border: 1px solid #000000;
5113: }
5114:
5115: span.LC_nobreak {
5116: white-space: nowrap;
5117: }
5118:
5119: span.LC_cusr_emph {
5120: font-style: italic;
5121: }
5122:
5123: span.LC_cusr_subheading {
5124: font-weight: normal;
5125: font-size: 85%;
5126: }
5127:
5128: table.LC_docs_documents {
5129: background: #BBBBBB;
5130: border-width: 0px;
5131: border-collapse: collapse;
5132: }
5133:
5134: table.LC_docs_documents td.LC_docs_document {
5135: border: 2px solid black;
5136: padding: 4px;
5137: }
5138:
5139: .LC_docs_course_commands div {
5140: float: left;
5141: border: 4px solid #AAAAAA;
5142: padding: 4px;
5143: background: #DDDDCC;
5144: }
5145:
5146: .LC_docs_entry_move {
5147: border: 0px;
5148: border-collapse: collapse;
5149: }
5150:
5151: .LC_docs_entry_move td {
5152: border: 2px solid #BBBBBB;
5153: background: #DDDDDD;
5154: }
5155:
5156: .LC_docs_editor td.LC_docs_entry_commands {
5157: background: #DDDDDD;
5158: font-size: x-small;
5159: }
5160: .LC_docs_copy {
5161: color: #000099;
5162: }
5163: .LC_docs_cut {
5164: color: #550044;
5165: }
5166: .LC_docs_rename {
5167: color: #009900;
5168: }
5169: .LC_docs_remove {
5170: color: #990000;
5171: }
5172:
5173: .LC_docs_reinit_warn,
5174: .LC_docs_ext_edit {
5175: font-size: x-small;
5176: }
5177:
5178: .LC_docs_editor td.LC_docs_entry_title,
5179: .LC_docs_editor td.LC_docs_entry_icon {
5180: background: #FFFFBB;
5181: }
5182: .LC_docs_editor td.LC_docs_entry_parameter {
5183: background: #BBBBFF;
5184: font-size: x-small;
5185: white-space: nowrap;
5186: }
5187:
5188: table.LC_docs_adddocs td,
5189: table.LC_docs_adddocs th {
5190: border: 1px solid #BBBBBB;
5191: padding: 4px;
5192: background: #DDDDDD;
5193: }
5194:
5195: table.LC_sty_begin {
5196: background: #BBFFBB;
5197: }
5198: table.LC_sty_end {
5199: background: #FFBBBB;
5200: }
5201:
5202: table.LC_double_column {
5203: border-width: 0px;
5204: border-collapse: collapse;
5205: width: 100%;
5206: padding: 2px;
5207: }
5208:
5209: table.LC_double_column tr td.LC_left_col {
5210: top: 2px;
5211: left: 2px;
5212: width: 47%;
5213: vertical-align: top;
5214: }
5215:
5216: table.LC_double_column tr td.LC_right_col {
5217: top: 2px;
5218: right: 2px;
5219: width: 47%;
5220: vertical-align: top;
5221: }
5222:
5223: span.LC_role_level {
5224: font-weight: bold;
5225: }
5226:
5227: div.LC_left_float {
5228: float: left;
5229: padding-right: 5%;
5230: padding-bottom: 4px;
5231: }
5232:
5233: div.LC_clear_float_header {
5234: padding-bottom: 2px;
5235: }
5236:
5237: div.LC_clear_float_footer {
5238: padding-top: 10px;
5239: clear: both;
5240: }
5241:
5242:
5243: div.LC_grade_select_mode {
5244: font-family: $sans;
5245: }
5246: div.LC_grade_select_mode div div {
5247: margin: 5px;
5248: }
5249: div.LC_grade_select_mode_selector {
5250: margin: 5px;
5251: float: left;
5252: }
5253: div.LC_grade_select_mode_selector_header {
5254: font: bold medium $sans;
5255: }
5256: div.LC_grade_select_mode_type {
5257: clear: left;
5258: }
5259:
5260: div.LC_grade_show_user {
5261: margin-top: 20px;
5262: border: 1px solid black;
5263: }
5264: div.LC_grade_user_name {
5265: background: #DDDDEE;
5266: border-bottom: 1px solid black;
5267: font: bold large $sans;
5268: }
5269: div.LC_grade_show_user_odd_row div.LC_grade_user_name {
5270: background: #DDEEDD;
5271: }
5272:
5273: div.LC_grade_show_problem,
5274: div.LC_grade_submissions,
5275: div.LC_grade_message_center,
5276: div.LC_grade_info_links,
5277: div.LC_grade_assign {
5278: margin: 5px;
5279: width: 99%;
5280: background: #FFFFFF;
5281: }
5282: div.LC_grade_show_problem_header,
5283: div.LC_grade_submissions_header,
5284: div.LC_grade_message_center_header,
5285: div.LC_grade_assign_header {
5286: font: bold large $sans;
5287: }
5288: div.LC_grade_show_problem_problem,
5289: div.LC_grade_submissions_body,
5290: div.LC_grade_message_center_body,
5291: div.LC_grade_assign_body {
5292: border: 1px solid black;
5293: width: 99%;
5294: background: #FFFFFF;
5295: }
5296: span.LC_grade_check_note {
5297: font: normal medium $sans;
5298: display: inline;
5299: position: absolute;
5300: right: 1em;
5301: }
5302:
5303: table.LC_scantron_action {
5304: width: 100%;
5305: }
5306: table.LC_scantron_action tr th {
5307: font: normal bold $sans;
5308: }
5309:
5310: div.LC_edit_problem_header,
5311: div.LC_edit_problem_footer {
5312: font: normal medium $sans;
5313: margin: 2px;
5314: }
5315: div.LC_edit_problem_header,
5316: div.LC_edit_problem_header div,
5317: div.LC_edit_problem_footer,
5318: div.LC_edit_problem_footer div,
5319: div.LC_edit_problem_editxml_header,
5320: div.LC_edit_problem_editxml_header div {
5321: margin-top: 5px;
5322: }
5323: div.LC_edit_problem_header_edit_row {
5324: background: $tabbg;
5325: padding: 3px;
5326: margin-bottom: 5px;
5327: }
5328: div.LC_edit_problem_header_title {
5329: font: larger bold $sans;
5330: background: $tabbg;
5331: padding: 3px;
5332: }
5333: table.LC_edit_problem_header_title {
5334: font: larger bold $sans;
5335: width: 100%;
5336: border-color: $pgbg;
5337: border-style: solid;
5338: border-width: $border;
5339:
5340: background: $tabbg;
5341: border-collapse: collapse;
5342: padding: 0px
5343: }
5344:
5345: div.LC_edit_problem_discards {
5346: float: left;
5347: padding-bottom: 5px;
5348: }
5349: div.LC_edit_problem_saves {
5350: float: right;
5351: padding-bottom: 5px;
5352: }
5353: hr.LC_edit_problem_divide {
5354: clear: both;
5355: color: $tabbg;
5356: background-color: $tabbg;
5357: height: 3px;
5358: border: 0px;
5359: }
5360: END
5361: }
5362:
5363: =pod
5364:
5365: =item * &headtag()
5366:
5367: Returns a uniform footer for LON-CAPA web pages.
5368:
5369: Inputs: $title - optional title for the head
5370: $head_extra - optional extra HTML to put inside the <head>
5371: $args - optional arguments
5372: force_register - if is true call registerurl so the remote is
5373: informed
5374: redirect -> array ref of
5375: 1- seconds before redirect occurs
5376: 2- url to redirect to
5377: 3- whether the side effect should occur
5378: (side effect of setting
5379: $env{'internal.head.redirect'} to the url
5380: redirected too)
5381: domain -> force to color decorate a page for a specific
5382: domain
5383: function -> force usage of a specific rolish color scheme
5384: bgcolor -> override the default page bgcolor
5385: no_auto_mt_title
5386: -> prevent &mt()ing the title arg
5387:
5388: =cut
5389:
5390: sub headtag {
5391: my ($title,$head_extra,$args) = @_;
5392:
5393: my $function = $args->{'function'} || &get_users_function();
5394: my $domain = $args->{'domain'} || &determinedomain();
5395: my $bgcolor = $args->{'bgcolor'} || &designparm($function.'.pgbg',$domain);
5396: my $url = join(':',$env{'user.name'},$env{'user.domain'},
5397: $Apache::lonnet::perlvar{'lonVersion'},
5398: #time(),
5399: $env{'environment.color.timestamp'},
5400: $function,$domain,$bgcolor);
5401:
5402: $url = '/adm/css/'.&escape($url).'.css';
5403:
5404: my $result =
5405: '<head>'.
5406: &font_settings();
5407:
5408: if (!$args->{'frameset'}) {
5409: $result .= &Apache::lonhtmlcommon::htmlareaheaders();
5410: }
5411: if ($args->{'force_register'}) {
5412: $result .= &Apache::lonmenu::registerurl(1);
5413: }
5414: if (!$args->{'no_nav_bar'}
5415: && !$args->{'only_body'}
5416: && !$args->{'frameset'}) {
5417: $result .= &help_menu_js();
5418: }
5419:
5420: if (ref($args->{'redirect'})) {
5421: my ($time,$url,$inhibit_continue) = @{$args->{'redirect'}};
5422: $url = &Apache::lonenc::check_encrypt($url);
5423: if (!$inhibit_continue) {
5424: $env{'internal.head.redirect'} = $url;
5425: }
5426: $result.=<<ADDMETA
5427: <meta http-equiv="pragma" content="no-cache" />
5428: <meta http-equiv="Refresh" content="$time; url=$url" />
5429: ADDMETA
5430: }
5431: if (!defined($title)) {
5432: $title = 'The LearningOnline Network with CAPA';
5433: }
5434: if (!$args->{'no_auto_mt_title'}) { $title = &mt($title); }
5435: $result .= '<title> LON-CAPA '.$title.'</title>'
5436: .'<link rel="stylesheet" type="text/css" href="'.$url.'" />'
5437: .$head_extra;
5438: return $result;
5439: }
5440:
5441: =pod
5442:
5443: =item * &font_settings()
5444:
5445: Returns neccessary <meta> to set the proper encoding
5446:
5447: Inputs: none
5448:
5449: =cut
5450:
5451: sub font_settings {
5452: my $headerstring='';
5453: if (!$env{'browser.mathml'} && $env{'browser.unicode'}) {
5454: $headerstring.=
5455: '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
5456: }
5457: return $headerstring;
5458: }
5459:
5460: =pod
5461:
5462: =item * &xml_begin()
5463:
5464: Returns the needed doctype and <html>
5465:
5466: Inputs: none
5467:
5468: =cut
5469:
5470: sub xml_begin {
5471: my $output='';
5472:
5473: if ($env{'internal.start_page'}==1) {
5474: &Apache::lonhtmlcommon::init_htmlareafields();
5475: }
5476:
5477: if ($env{'browser.mathml'}) {
5478: $output='<?xml version="1.0"?>'
5479: #.'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>'."\n"
5480: # .'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" '
5481:
5482: # .'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" [<!ENTITY mathns "http://www.w3.org/1998/Math/MathML">] >'
5483: .'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd">'
5484: .'<html xmlns:math="http://www.w3.org/1998/Math/MathML" '
5485: .'xmlns="http://www.w3.org/1999/xhtml">';
5486: } else {
5487: $output='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html>';
5488: }
5489: return $output;
5490: }
5491:
5492: =pod
5493:
5494: =item * &endheadtag()
5495:
5496: Returns a uniform </head> for LON-CAPA web pages.
5497:
5498: Inputs: none
5499:
5500: =cut
5501:
5502: sub endheadtag {
5503: return '</head>';
5504: }
5505:
5506: =pod
5507:
5508: =item * &head()
5509:
5510: Returns a uniform complete <head>..</head> section for LON-CAPA web pages.
5511:
5512: Inputs:
5513:
5514: =over 4
5515:
5516: $title - optional title for the page
5517:
5518: $head_extra - optional extra HTML to put inside the <head>
5519:
5520: =back
5521:
5522: =cut
5523:
5524: sub head {
5525: my ($title,$head_extra,$args) = @_;
5526: return &headtag($title,$head_extra,$args).&endheadtag();
5527: }
5528:
5529: =pod
5530:
5531: =item * &start_page()
5532:
5533: Returns a complete <html> .. <body> section for LON-CAPA web pages.
5534:
5535: Inputs:
5536:
5537: =over 4
5538:
5539: $title - optional title for the page
5540:
5541: $head_extra - optional extra HTML to incude inside the <head>
5542:
5543: $args - additional optional args supported are:
5544:
5545: =over 8
5546:
5547: only_body -> is true will set &bodytag() onlybodytag
5548: arg on
5549: no_nav_bar -> is true will set &bodytag() notopbar arg on
5550: add_entries -> additional attributes to add to the <body>
5551: domain -> force to color decorate a page for a
5552: specific domain
5553: function -> force usage of a specific rolish color
5554: scheme
5555: redirect -> see &headtag()
5556: bgcolor -> override the default page bg color
5557: js_ready -> return a string ready for being used in
5558: a javascript writeln
5559: html_encode -> return a string ready for being used in
5560: a html attribute
5561: force_register -> if is true will turn on the &bodytag()
5562: $forcereg arg
5563: body_title -> alternate text to use instead of $title
5564: in the title box that appears, this text
5565: is not auto translated like the $title is
5566: frameset -> if true will start with a <frameset>
5567: rather than <body>
5568: no_title -> if true the title bar won't be shown
5569: skip_phases -> hash ref of
5570: head -> skip the <html><head> generation
5571: body -> skip all <body> generation
5572: no_inline_link -> if true and in remote mode, don't show the
5573: 'Switch To Inline Menu' link
5574: no_auto_mt_title -> prevent &mt()ing the title arg
5575: inherit_jsmath -> when creating popup window in a page,
5576: should it have jsmath forced on by the
5577: current page
5578:
5579: =back
5580:
5581: =back
5582:
5583: =cut
5584:
5585: sub start_page {
5586: my ($title,$head_extra,$args) = @_;
5587: #&Apache::lonnet::logthis("start_page ".join(':',caller(0)));
5588: my %head_args;
5589: foreach my $arg ('redirect','force_register','domain','function',
5590: 'bgcolor','frameset','no_nav_bar','only_body',
5591: 'no_auto_mt_title') {
5592: if (defined($args->{$arg})) {
5593: $head_args{$arg} = $args->{$arg};
5594: }
5595: }
5596:
5597: $env{'internal.start_page'}++;
5598: my $result;
5599: if (! exists($args->{'skip_phases'}{'head'}) ) {
5600: $result.=
5601: &xml_begin().
5602: &headtag($title,$head_extra,\%head_args).&endheadtag();
5603: }
5604:
5605: if (! exists($args->{'skip_phases'}{'body'}) ) {
5606: if ($args->{'frameset'}) {
5607: my $attr_string = &make_attr_string($args->{'force_register'},
5608: $args->{'add_entries'});
5609: $result .= "\n<frameset $attr_string>\n";
5610: } else {
5611: $result .=
5612: &bodytag($title,
5613: $args->{'function'}, $args->{'add_entries'},
5614: $args->{'only_body'}, $args->{'domain'},
5615: $args->{'force_register'}, $args->{'body_title'},
5616: $args->{'no_nav_bar'}, $args->{'bgcolor'},
5617: $args->{'no_title'}, $args->{'no_inline_link'},
5618: $args);
5619: }
5620: }
5621:
5622: if ($args->{'js_ready'}) {
5623: $result = &js_ready($result);
5624: }
5625: if ($args->{'html_encode'}) {
5626: $result = &html_encode($result);
5627: }
5628: return $result;
5629: }
5630:
5631:
5632: =pod
5633:
5634: =item * &head()
5635:
5636: Returns a complete </body></html> section for LON-CAPA web pages.
5637:
5638: Inputs: $args - additional optional args supported are:
5639: js_ready -> return a string ready for being used in
5640: a javascript writeln
5641: html_encode -> return a string ready for being used in
5642: a html attribute
5643: frameset -> if true will start with a <frameset>
5644: rather than <body>
5645: dicsussion -> if true will get discussion from
5646: lonxml::xmlend
5647: (you can pass the target and parser arguments
5648: through optional 'target' and 'parser' args
5649: to this routine)
5650:
5651: =cut
5652:
5653: sub end_page {
5654: my ($args) = @_;
5655: $env{'internal.end_page'}++;
5656: my $result;
5657: if ($args->{'discussion'}) {
5658: my ($target,$parser);
5659: if (ref($args->{'discussion'})) {
5660: ($target,$parser) =($args->{'discussion'}{'target'},
5661: $args->{'discussion'}{'parser'});
5662: }
5663: $result .= &Apache::lonxml::xmlend($target,$parser);
5664: }
5665:
5666: if ($args->{'frameset'}) {
5667: $result .= '</frameset>';
5668: } else {
5669: $result .= &endbodytag($args);
5670: }
5671: $result .= "\n</html>";
5672:
5673: if ($args->{'js_ready'}) {
5674: $result = &js_ready($result);
5675: }
5676:
5677: if ($args->{'html_encode'}) {
5678: $result = &html_encode($result);
5679: }
5680:
5681: return $result;
5682: }
5683:
5684: sub html_encode {
5685: my ($result) = @_;
5686:
5687: $result = &HTML::Entities::encode($result,'<>&"');
5688:
5689: return $result;
5690: }
5691: sub js_ready {
5692: my ($result) = @_;
5693:
5694: $result =~ s/[\n\r]/ /xmsg;
5695: $result =~ s/\\/\\\\/xmsg;
5696: $result =~ s/'/\\'/xmsg;
5697: $result =~ s{</}{<\\/}xmsg;
5698:
5699: return $result;
5700: }
5701:
5702: sub validate_page {
5703: if ( exists($env{'internal.start_page'})
5704: && $env{'internal.start_page'} > 1) {
5705: &Apache::lonnet::logthis('start_page called multiple times '.
5706: $env{'internal.start_page'}.' '.
5707: $ENV{'request.filename'});
5708: }
5709: if ( exists($env{'internal.end_page'})
5710: && $env{'internal.end_page'} > 1) {
5711: &Apache::lonnet::logthis('end_page called multiple times '.
5712: $env{'internal.end_page'}.' '.
5713: $env{'request.filename'});
5714: }
5715: if ( exists($env{'internal.start_page'})
5716: && ! exists($env{'internal.end_page'})) {
5717: &Apache::lonnet::logthis('start_page called without end_page '.
5718: $env{'request.filename'});
5719: }
5720: if ( ! exists($env{'internal.start_page'})
5721: && exists($env{'internal.end_page'})) {
5722: &Apache::lonnet::logthis('end_page called without start_page'.
5723: $env{'request.filename'});
5724: }
5725: }
5726:
5727: sub simple_error_page {
5728: my ($r,$title,$msg) = @_;
5729: my $page =
5730: &Apache::loncommon::start_page($title).
5731: &mt($msg).
5732: &Apache::loncommon::end_page();
5733: if (ref($r)) {
5734: $r->print($page);
5735: return;
5736: }
5737: return $page;
5738: }
5739:
5740: {
5741: my @row_count;
5742: sub start_data_table {
5743: my ($add_class) = @_;
5744: my $css_class = (join(' ','LC_data_table',$add_class));
5745: unshift(@row_count,0);
5746: return '<table class="'.$css_class.'">'."\n";
5747: }
5748:
5749: sub end_data_table {
5750: shift(@row_count);
5751: return '</table>'."\n";;
5752: }
5753:
5754: sub start_data_table_row {
5755: my ($add_class) = @_;
5756: $row_count[0]++;
5757: my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
5758: $css_class = (join(' ',$css_class,$add_class));
5759: return '<tr class="'.$css_class.'">'."\n";;
5760: }
5761:
5762: sub continue_data_table_row {
5763: my ($add_class) = @_;
5764: my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
5765: $css_class = (join(' ',$css_class,$add_class));
5766: return '<tr class="'.$css_class.'">'."\n";;
5767: }
5768:
5769: sub end_data_table_row {
5770: return '</tr>'."\n";;
5771: }
5772:
5773: sub start_data_table_empty_row {
5774: $row_count[0]++;
5775: return '<tr class="LC_empty_row" >'."\n";;
5776: }
5777:
5778: sub end_data_table_empty_row {
5779: return '</tr>'."\n";;
5780: }
5781:
5782: sub start_data_table_header_row {
5783: return '<tr class="LC_header_row">'."\n";;
5784: }
5785:
5786: sub end_data_table_header_row {
5787: return '</tr>'."\n";;
5788: }
5789: }
5790:
5791: =pod
5792:
5793: =item * &inhibit_menu_check($arg)
5794:
5795: Checks for a inhibitmenu state and generates output to preserve it
5796:
5797: Inputs: $arg - can be any of
5798: - undef - in which case the return value is a string
5799: to add into arguments list of a uri
5800: - 'input' - in which case the return value is a HTML
5801: <form> <input> field of type hidden to
5802: preserve the value
5803: - a url - in which case the return value is the url with
5804: the neccesary cgi args added to preserve the
5805: inhibitmenu state
5806: - a ref to a url - no return value, but the string is
5807: updated to include the neccessary cgi
5808: args to preserve the inhibitmenu state
5809:
5810: =cut
5811:
5812: sub inhibit_menu_check {
5813: my ($arg) = @_;
5814: &get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['inhibitmenu']);
5815: if ($arg eq 'input') {
5816: if ($env{'form.inhibitmenu'}) {
5817: return '<input type="hidden" name="inhibitmenu" value="'.$env{'form.inhibitmenu'}.'" />';
5818: } else {
5819: return
5820: }
5821: }
5822: if ($env{'form.inhibitmenu'}) {
5823: if (ref($arg)) {
5824: $$arg .= '?inhibitmenu='.$env{'form.inhibitmenu'};
5825: } elsif ($arg eq '') {
5826: $arg .= 'inhibitmenu='.$env{'form.inhibitmenu'};
5827: } else {
5828: $arg .= '?inhibitmenu='.$env{'form.inhibitmenu'};
5829: }
5830: }
5831: if (!ref($arg)) {
5832: return $arg;
5833: }
5834: }
5835:
5836: ###############################################
5837:
5838: =pod
5839:
5840: =back
5841:
5842: =head1 User Information Routines
5843:
5844: =over 4
5845:
5846: =item * &get_users_function()
5847:
5848: Used by &bodytag to determine the current users primary role.
5849: Returns either 'student','coordinator','admin', or 'author'.
5850:
5851: =cut
5852:
5853: ###############################################
5854: sub get_users_function {
5855: my $function = 'student';
5856: if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
5857: $function='coordinator';
5858: }
5859: if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
5860: $function='admin';
5861: }
5862: if (($env{'request.role'}=~/^(au|ca)/) ||
5863: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
5864: $function='author';
5865: }
5866: return $function;
5867: }
5868:
5869: ###############################################
5870:
5871: =pod
5872:
5873: =item * &check_user_status()
5874:
5875: Determines current status of supplied role for a
5876: specific user. Roles can be active, previous or future.
5877:
5878: Inputs:
5879: user's domain, user's username, course's domain,
5880: course's number, optional section ID.
5881:
5882: Outputs:
5883: role status: active, previous or future.
5884:
5885: =cut
5886:
5887: sub check_user_status {
5888: my ($udom,$uname,$cdom,$crs,$role,$sec) = @_;
5889: my %userinfo = &Apache::lonnet::dump('roles',$udom,$uname);
5890: my @uroles = keys %userinfo;
5891: my $srchstr;
5892: my $active_chk = 'none';
5893: my $now = time;
5894: if (@uroles > 0) {
5895: if (($role eq 'cc') || ($sec eq '') || (!defined($sec))) {
5896: $srchstr = '/'.$cdom.'/'.$crs.'_'.$role;
5897: } else {
5898: $srchstr = '/'.$cdom.'/'.$crs.'/'.$sec.'_'.$role;
5899: }
5900: if (grep/^\Q$srchstr\E$/,@uroles) {
5901: my $role_end = 0;
5902: my $role_start = 0;
5903: $active_chk = 'active';
5904: if ($userinfo{$srchstr} =~ m/^\Q$role\E_(\d+)/) {
5905: $role_end = $1;
5906: if ($userinfo{$srchstr} =~ m/^\Q$role\E_\Q$role_end\E_(\d+)$/) {
5907: $role_start = $1;
5908: }
5909: }
5910: if ($role_start > 0) {
5911: if ($now < $role_start) {
5912: $active_chk = 'future';
5913: }
5914: }
5915: if ($role_end > 0) {
5916: if ($now > $role_end) {
5917: $active_chk = 'previous';
5918: }
5919: }
5920: }
5921: }
5922: return $active_chk;
5923: }
5924:
5925: ###############################################
5926:
5927: =pod
5928:
5929: =item * &get_sections()
5930:
5931: Determines all the sections for a course including
5932: sections with students and sections containing other roles.
5933: Incoming parameters:
5934:
5935: 1. domain
5936: 2. course number
5937: 3. reference to array containing roles for which sections should
5938: be gathered (optional).
5939: 4. reference to array containing status types for which sections
5940: should be gathered (optional).
5941:
5942: If the third argument is undefined, sections are gathered for any role.
5943: If the fourth argument is undefined, sections are gathered for any status.
5944: Permissible values are 'active' or 'future' or 'previous'.
5945:
5946: Returns section hash (keys are section IDs, values are
5947: number of users in each section), subject to the
5948: optional roles filter, optional status filter
5949:
5950: =cut
5951:
5952: ###############################################
5953: sub get_sections {
5954: my ($cdom,$cnum,$possible_roles,$possible_status) = @_;
5955: if (!defined($cdom) || !defined($cnum)) {
5956: my $cid = $env{'request.course.id'};
5957:
5958: return if (!defined($cid));
5959:
5960: $cdom = $env{'course.'.$cid.'.domain'};
5961: $cnum = $env{'course.'.$cid.'.num'};
5962: }
5963:
5964: my %sectioncount;
5965: my $now = time;
5966:
5967: if (!defined($possible_roles) || (grep(/^st$/,@$possible_roles))) {
5968: my ($classlist) = &Apache::loncoursedata::get_classlist($cdom,$cnum);
5969: my $sec_index = &Apache::loncoursedata::CL_SECTION();
5970: my $status_index = &Apache::loncoursedata::CL_STATUS();
5971: my $start_index = &Apache::loncoursedata::CL_START();
5972: my $end_index = &Apache::loncoursedata::CL_END();
5973: my $status;
5974: while (my ($student,$data) = each(%$classlist)) {
5975: my ($section,$stu_status,$start,$end) = ($data->[$sec_index],
5976: $data->[$status_index],
5977: $data->[$start_index],
5978: $data->[$end_index]);
5979: if ($stu_status eq 'Active') {
5980: $status = 'active';
5981: } elsif ($end < $now) {
5982: $status = 'previous';
5983: } elsif ($start > $now) {
5984: $status = 'future';
5985: }
5986: if ($section ne '-1' && $section !~ /^\s*$/) {
5987: if ((!defined($possible_status)) || (($status ne '') &&
5988: (grep/^\Q$status\E$/,@{$possible_status}))) {
5989: $sectioncount{$section}++;
5990: }
5991: }
5992: }
5993: }
5994: my %courseroles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
5995: foreach my $user (sort(keys(%courseroles))) {
5996: if ($user !~ /^(\w{2})/) { next; }
5997: my ($role) = ($user =~ /^(\w{2})/);
5998: if ($possible_roles && !(grep(/^$role$/,@$possible_roles))) { next; }
5999: my ($section,$status);
6000: if ($role eq 'cr' &&
6001: $user =~ m-^$role/[^/]*/[^/]*/[^/]*:[^:]*:[^:]*:(\w+)-) {
6002: $section=$1;
6003: }
6004: if ($user =~ /^$role:[^:]*:[^:]*:(\w+)/) { $section=$1; }
6005: if (!defined($section) || $section eq '-1') { next; }
6006: my ($end,$start) = ($courseroles{$user} =~ /^([^:]*):([^:]*)$/);
6007: if ($end == -1 && $start == -1) {
6008: next; #deleted role
6009: }
6010: if (!defined($possible_status)) {
6011: $sectioncount{$section}++;
6012: } else {
6013: if ((!$end || $end >= $now) && (!$start || $start <= $now)) {
6014: $status = 'active';
6015: } elsif ($end < $now) {
6016: $status = 'future';
6017: } elsif ($start > $now) {
6018: $status = 'previous';
6019: }
6020: if (($status ne '') && (grep/^\Q$status\E$/,@{$possible_status})) {
6021: $sectioncount{$section}++;
6022: }
6023: }
6024: }
6025: return %sectioncount;
6026: }
6027:
6028: ###############################################
6029:
6030: =pod
6031:
6032: =item * &get_course_users()
6033:
6034: Retrieves usernames:domains for users in the specified course
6035: with specific role(s), and access status.
6036:
6037: Incoming parameters:
6038: 1. course domain
6039: 2. course number
6040: 3. access status: users must have - either active,
6041: previous, future, or all.
6042: 4. reference to array of permissible roles
6043: 5. reference to array of section restrictions (optional)
6044: 6. reference to results object (hash of hashes).
6045: 7. reference to optional userdata hash
6046: 8. reference to optional statushash
6047: 9. flag if privileged users (except those set to unhide in
6048: course settings) should be excluded
6049: Keys of top level results hash are roles.
6050: Keys of inner hashes are username:domain, with
6051: values set to access type.
6052: Optional userdata hash returns an array with arguments in the
6053: same order as loncoursedata::get_classlist() for student data.
6054:
6055: Optional statushash returns
6056:
6057: Entries for end, start, section and status are blank because
6058: of the possibility of multiple values for non-student roles.
6059:
6060: =cut
6061:
6062: ###############################################
6063:
6064: sub get_course_users {
6065: my ($cdom,$cnum,$types,$roles,$sections,$users,$userdata,$statushash,$hidepriv) = @_;
6066: my %idx = ();
6067: my %seclists;
6068:
6069: $idx{udom} = &Apache::loncoursedata::CL_SDOM();
6070: $idx{uname} = &Apache::loncoursedata::CL_SNAME();
6071: $idx{end} = &Apache::loncoursedata::CL_END();
6072: $idx{start} = &Apache::loncoursedata::CL_START();
6073: $idx{id} = &Apache::loncoursedata::CL_ID();
6074: $idx{section} = &Apache::loncoursedata::CL_SECTION();
6075: $idx{fullname} = &Apache::loncoursedata::CL_FULLNAME();
6076: $idx{status} = &Apache::loncoursedata::CL_STATUS();
6077:
6078: if (grep(/^st$/,@{$roles})) {
6079: my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist($cdom,$cnum);
6080: my $now = time;
6081: foreach my $student (keys(%{$classlist})) {
6082: my $match = 0;
6083: my $secmatch = 0;
6084: my $section = $$classlist{$student}[$idx{section}];
6085: my $status = $$classlist{$student}[$idx{status}];
6086: if ($section eq '') {
6087: $section = 'none';
6088: }
6089: if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
6090: if (grep(/^all$/,@{$sections})) {
6091: $secmatch = 1;
6092: } elsif ($$classlist{$student}[$idx{section}] eq '') {
6093: if (grep(/^none$/,@{$sections})) {
6094: $secmatch = 1;
6095: }
6096: } else {
6097: if (grep(/^\Q$section\E$/,@{$sections})) {
6098: $secmatch = 1;
6099: }
6100: }
6101: if (!$secmatch) {
6102: next;
6103: }
6104: }
6105: if (defined($$types{'active'})) {
6106: if ($$classlist{$student}[$idx{status}] eq 'Active') {
6107: push(@{$$users{st}{$student}},'active');
6108: $match = 1;
6109: }
6110: }
6111: if (defined($$types{'previous'})) {
6112: if ($$classlist{$student}[$idx{status}] eq 'Expired') {
6113: push(@{$$users{st}{$student}},'previous');
6114: $match = 1;
6115: }
6116: }
6117: if (defined($$types{'future'})) {
6118: if ($$classlist{$student}[$idx{status}] eq 'Future') {
6119: push(@{$$users{st}{$student}},'future');
6120: $match = 1;
6121: }
6122: }
6123: if ($match) {
6124: push(@{$seclists{$student}},$section);
6125: if (ref($userdata) eq 'HASH') {
6126: $$userdata{$student} = $$classlist{$student};
6127: }
6128: if (ref($statushash) eq 'HASH') {
6129: $statushash->{$student}{'st'}{$section} = $status;
6130: }
6131: }
6132: }
6133: }
6134: if ((@{$roles} > 1) || ((@{$roles} == 1) && ($$roles[0] ne "st"))) {
6135: my %coursepersonnel = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
6136: my $now = time;
6137: my %displaystatus = ( previous => 'Expired',
6138: active => 'Active',
6139: future => 'Future',
6140: );
6141: my %nothide;
6142: if ($hidepriv) {
6143: my %coursehash=&Apache::lonnet::coursedescription($cdom.'_'.$cnum);
6144: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
6145: if ($user !~ /:/) {
6146: $nothide{join(':',split(/[\@]/,$user))}=1;
6147: } else {
6148: $nothide{$user} = 1;
6149: }
6150: }
6151: }
6152: foreach my $person (sort(keys(%coursepersonnel))) {
6153: my $match = 0;
6154: my $secmatch = 0;
6155: my $status;
6156: my ($role,$user,$usec) = ($person =~ /^([^:]*):([^:]+:[^:]+):([^:]*)/);
6157: $user =~ s/:$//;
6158: my ($end,$start) = split(/:/,$coursepersonnel{$person});
6159: if ($end == -1 || $start == -1) {
6160: next;
6161: }
6162: if (($role) && ((grep(/^\Q$role\E$/,@{$roles})) ||
6163: (grep(/^cr$/,@{$roles}) && $role =~ /^cr\//))) {
6164: my ($uname,$udom) = split(/:/,$user);
6165: if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
6166: if (grep(/^all$/,@{$sections})) {
6167: $secmatch = 1;
6168: } elsif ($usec eq '') {
6169: if (grep(/^none$/,@{$sections})) {
6170: $secmatch = 1;
6171: }
6172: } else {
6173: if (grep(/^\Q$usec\E$/,@{$sections})) {
6174: $secmatch = 1;
6175: }
6176: }
6177: if (!$secmatch) {
6178: next;
6179: }
6180: }
6181: if ($usec eq '') {
6182: $usec = 'none';
6183: }
6184: if ($uname ne '' && $udom ne '') {
6185: if ($hidepriv) {
6186: if ((&Apache::lonnet::privileged($uname,$udom)) &&
6187: (!$nothide{$uname.':'.$udom})) {
6188: next;
6189: }
6190: }
6191: if ($end > 0 && $end < $now) {
6192: $status = 'previous';
6193: } elsif ($start > $now) {
6194: $status = 'future';
6195: } else {
6196: $status = 'active';
6197: }
6198: foreach my $type (keys(%{$types})) {
6199: if ($status eq $type) {
6200: if (!grep(/^\Q$type\E$/,@{$$users{$role}{$user}})) {
6201: push(@{$$users{$role}{$user}},$type);
6202: }
6203: $match = 1;
6204: }
6205: }
6206: if (($match) && (ref($userdata) eq 'HASH')) {
6207: if (!exists($$userdata{$uname.':'.$udom})) {
6208: &get_user_info($udom,$uname,\%idx,$userdata);
6209: }
6210: if (!grep(/^\Q$usec\E$/,@{$seclists{$uname.':'.$udom}})) {
6211: push(@{$seclists{$uname.':'.$udom}},$usec);
6212: }
6213: if (ref($statushash) eq 'HASH') {
6214: $statushash->{$uname.':'.$udom}{$role}{$usec} = $displaystatus{$status};
6215: }
6216: }
6217: }
6218: }
6219: }
6220: if (grep(/^ow$/,@{$roles})) {
6221: if ((defined($cdom)) && (defined($cnum))) {
6222: my %csettings = &Apache::lonnet::get('environment',['internal.courseowner'],$cdom,$cnum);
6223: if ( defined($csettings{'internal.courseowner'}) ) {
6224: my $owner = $csettings{'internal.courseowner'};
6225: next if ($owner eq '');
6226: my ($ownername,$ownerdom);
6227: if ($owner =~ /^([^:]+):([^:]+)$/) {
6228: $ownername = $1;
6229: $ownerdom = $2;
6230: } else {
6231: $ownername = $owner;
6232: $ownerdom = $cdom;
6233: $owner = $ownername.':'.$ownerdom;
6234: }
6235: @{$$users{'ow'}{$owner}} = 'any';
6236: if (defined($userdata) &&
6237: !exists($$userdata{$owner})) {
6238: &get_user_info($ownerdom,$ownername,\%idx,$userdata);
6239: if (!grep(/^none$/,@{$seclists{$owner}})) {
6240: push(@{$seclists{$owner}},'none');
6241: }
6242: if (ref($statushash) eq 'HASH') {
6243: $statushash->{$owner}{'ow'}{'none'} = 'Any';
6244: }
6245: }
6246: }
6247: }
6248: }
6249: foreach my $user (keys(%seclists)) {
6250: @{$seclists{$user}} = (sort {$a <=> $b} @{$seclists{$user}});
6251: $$userdata{$user}[$idx{section}] = join(',',@{$seclists{$user}});
6252: }
6253: }
6254: return;
6255: }
6256:
6257: sub get_user_info {
6258: my ($udom,$uname,$idx,$userdata) = @_;
6259: $$userdata{$uname.':'.$udom}[$$idx{fullname}] =
6260: &plainname($uname,$udom,'lastname');
6261: $$userdata{$uname.':'.$udom}[$$idx{uname}] = $uname;
6262: $$userdata{$uname.':'.$udom}[$$idx{udom}] = $udom;
6263: my %idhash = &Apache::lonnet::idrget($udom,($uname));
6264: $$userdata{$uname.':'.$udom}[$$idx{id}] = $idhash{$uname};
6265: return;
6266: }
6267:
6268: ###############################################
6269:
6270: =pod
6271:
6272: =item * &get_user_quota()
6273:
6274: Retrieves quota assigned for storage of portfolio files for a user
6275:
6276: Incoming parameters:
6277: 1. user's username
6278: 2. user's domain
6279:
6280: Returns:
6281: 1. Disk quota (in Mb) assigned to student.
6282: 2. (Optional) Type of setting: custom or default
6283: (individually assigned or default for user's
6284: institutional status).
6285: 3. (Optional) - User's institutional status (e.g., faculty, staff
6286: or student - types as defined in localenroll::inst_usertypes
6287: for user's domain, which determines default quota for user.
6288: 4. (Optional) - Default quota which would apply to the user.
6289:
6290: If a value has been stored in the user's environment,
6291: it will return that, otherwise it returns the maximal default
6292: defined for the user's instituional status(es) in the domain.
6293:
6294: =cut
6295:
6296: ###############################################
6297:
6298:
6299: sub get_user_quota {
6300: my ($uname,$udom) = @_;
6301: my ($quota,$quotatype,$settingstatus,$defquota);
6302: if (!defined($udom)) {
6303: $udom = $env{'user.domain'};
6304: }
6305: if (!defined($uname)) {
6306: $uname = $env{'user.name'};
6307: }
6308: if (($udom eq '' || $uname eq '') ||
6309: ($udom eq 'public') && ($uname eq 'public')) {
6310: $quota = 0;
6311: $quotatype = 'default';
6312: $defquota = 0;
6313: } else {
6314: my $inststatus;
6315: if ($udom eq $env{'user.domain'} && $uname eq $env{'user.name'}) {
6316: $quota = $env{'environment.portfolioquota'};
6317: $inststatus = $env{'environment.inststatus'};
6318: } else {
6319: my %userenv =
6320: &Apache::lonnet::get('environment',['portfolioquota',
6321: 'inststatus'],$udom,$uname);
6322: my ($tmp) = keys(%userenv);
6323: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
6324: $quota = $userenv{'portfolioquota'};
6325: $inststatus = $userenv{'inststatus'};
6326: } else {
6327: undef(%userenv);
6328: }
6329: }
6330: ($defquota,$settingstatus) = &default_quota($udom,$inststatus);
6331: if ($quota eq '') {
6332: $quota = $defquota;
6333: $quotatype = 'default';
6334: } else {
6335: $quotatype = 'custom';
6336: }
6337: }
6338: if (wantarray) {
6339: return ($quota,$quotatype,$settingstatus,$defquota);
6340: } else {
6341: return $quota;
6342: }
6343: }
6344:
6345: ###############################################
6346:
6347: =pod
6348:
6349: =item * &default_quota()
6350:
6351: Retrieves default quota assigned for storage of user portfolio files,
6352: given an (optional) user's institutional status.
6353:
6354: Incoming parameters:
6355: 1. domain
6356: 2. (Optional) institutional status(es). This is a : separated list of
6357: status types (e.g., faculty, staff, student etc.)
6358: which apply to the user for whom the default is being retrieved.
6359: If the institutional status string in undefined, the domain
6360: default quota will be returned.
6361:
6362: Returns:
6363: 1. Default disk quota (in Mb) for user portfolios in the domain.
6364: 2. (Optional) institutional type which determined the value of the
6365: default quota.
6366:
6367: If a value has been stored in the domain's configuration db,
6368: it will return that, otherwise it returns 20 (for backwards
6369: compatibility with domains which have not set up a configuration
6370: db file; the original statically defined portfolio quota was 20 Mb).
6371:
6372: If the user's status includes multiple types (e.g., staff and student),
6373: the largest default quota which applies to the user determines the
6374: default quota returned.
6375:
6376: =cut
6377:
6378: ###############################################
6379:
6380:
6381: sub default_quota {
6382: my ($udom,$inststatus) = @_;
6383: my ($defquota,$settingstatus);
6384: my %quotahash = &Apache::lonnet::get_dom('configuration',
6385: ['quotas'],$udom);
6386: if (ref($quotahash{'quotas'}) eq 'HASH') {
6387: if ($inststatus ne '') {
6388: my @statuses = split(/:/,$inststatus);
6389: foreach my $item (@statuses) {
6390: if ($quotahash{'quotas'}{$item} ne '') {
6391: if ($defquota eq '') {
6392: $defquota = $quotahash{'quotas'}{$item};
6393: $settingstatus = $item;
6394: } elsif ($quotahash{'quotas'}{$item} > $defquota) {
6395: $defquota = $quotahash{'quotas'}{$item};
6396: $settingstatus = $item;
6397: }
6398: }
6399: }
6400: }
6401: if ($defquota eq '') {
6402: $defquota = $quotahash{'quotas'}{'default'};
6403: $settingstatus = 'default';
6404: }
6405: } else {
6406: $settingstatus = 'default';
6407: $defquota = 20;
6408: }
6409: if (wantarray) {
6410: return ($defquota,$settingstatus);
6411: } else {
6412: return $defquota;
6413: }
6414: }
6415:
6416: sub get_secgrprole_info {
6417: my ($cdom,$cnum,$needroles,$type) = @_;
6418: my %sections_count = &get_sections($cdom,$cnum);
6419: my @sections = (sort {$a <=> $b} keys(%sections_count));
6420: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
6421: my @groups = sort(keys(%curr_groups));
6422: my $allroles = [];
6423: my $rolehash;
6424: my $accesshash = {
6425: active => 'Currently has access',
6426: future => 'Will have future access',
6427: previous => 'Previously had access',
6428: };
6429: if ($needroles) {
6430: $rolehash = {'all' => 'all'};
6431: my %user_roles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
6432: if (&Apache::lonnet::error(%user_roles)) {
6433: undef(%user_roles);
6434: }
6435: foreach my $item (keys(%user_roles)) {
6436: my ($role)=split(/\:/,$item,2);
6437: if ($role eq 'cr') { next; }
6438: if ($role =~ /^cr/) {
6439: $$rolehash{$role} = (split('/',$role))[3];
6440: } else {
6441: $$rolehash{$role} = &Apache::lonnet::plaintext($role,$type);
6442: }
6443: }
6444: foreach my $key (sort(keys(%{$rolehash}))) {
6445: push(@{$allroles},$key);
6446: }
6447: push (@{$allroles},'st');
6448: $$rolehash{'st'} = &Apache::lonnet::plaintext('st',$type);
6449: }
6450: return (\@sections,\@groups,$allroles,$rolehash,$accesshash);
6451: }
6452:
6453: sub user_picker {
6454: my ($dom,$srch,$forcenewuser,$caller,$cancreate,$usertype) = @_;
6455: my $currdom = $dom;
6456: my %curr_selected = (
6457: srchin => 'dom',
6458: srchby => 'lastname',
6459: );
6460: my $srchterm;
6461: if ((ref($srch) eq 'HASH') && ($env{'form.origform'} ne 'crtusername')) {
6462: if ($srch->{'srchby'} ne '') {
6463: $curr_selected{'srchby'} = $srch->{'srchby'};
6464: }
6465: if ($srch->{'srchin'} ne '') {
6466: $curr_selected{'srchin'} = $srch->{'srchin'};
6467: }
6468: if ($srch->{'srchtype'} ne '') {
6469: $curr_selected{'srchtype'} = $srch->{'srchtype'};
6470: }
6471: if ($srch->{'srchdomain'} ne '') {
6472: $currdom = $srch->{'srchdomain'};
6473: }
6474: $srchterm = $srch->{'srchterm'};
6475: }
6476: my %lt=&Apache::lonlocal::texthash(
6477: 'usr' => 'Search criteria',
6478: 'doma' => 'Domain/institution to search',
6479: 'uname' => 'username',
6480: 'lastname' => 'last name',
6481: 'lastfirst' => 'last name, first name',
6482: 'crs' => 'in this course',
6483: 'dom' => 'in selected LON-CAPA domain',
6484: 'alc' => 'all LON-CAPA',
6485: 'instd' => 'in institutional directory for selected domain',
6486: 'exact' => 'is',
6487: 'contains' => 'contains',
6488: 'begins' => 'begins with',
6489: 'youm' => "You must include some text to search for.",
6490: 'thte' => "The text you are searching for must contain at least two characters when using a 'begins' type search.",
6491: 'thet' => "The text you are searching for must contain at least three characters when using a 'contains' type search.",
6492: 'yomc' => "You must choose a domain when using an institutional directory search.",
6493: 'ymcd' => "You must choose a domain when using a domain search.",
6494: 'whus' => "When using searching by last,first you must include a comma as separator between last name and first name.",
6495: 'whse' => "When searching by last,first you must include at least one character in the first name.",
6496: 'thfo' => "The following need to be corrected before the search can be run:",
6497: );
6498: my $domform = &select_dom_form($currdom,'srchdomain',1,1);
6499: my $srchinsel = ' <select name="srchin">';
6500:
6501: my @srchins = ('crs','dom','alc','instd');
6502:
6503: foreach my $option (@srchins) {
6504: # FIXME 'alc' option unavailable until
6505: # loncreateuser::print_user_query_page()
6506: # has been completed.
6507: next if ($option eq 'alc');
6508: next if ($option eq 'crs' && !$env{'request.course.id'});
6509: if ($curr_selected{'srchin'} eq $option) {
6510: $srchinsel .= '
6511: <option value="'.$option.'" selected="selected">'.$lt{$option}.'</option>';
6512: } else {
6513: $srchinsel .= '
6514: <option value="'.$option.'">'.$lt{$option}.'</option>';
6515: }
6516: }
6517: $srchinsel .= "\n </select>\n";
6518:
6519: my $srchbysel = ' <select name="srchby">';
6520: foreach my $option ('lastname','lastfirst','uname') {
6521: if ($curr_selected{'srchby'} eq $option) {
6522: $srchbysel .= '
6523: <option value="'.$option.'" selected="selected">'.$lt{$option}.'</option>';
6524: } else {
6525: $srchbysel .= '
6526: <option value="'.$option.'">'.$lt{$option}.'</option>';
6527: }
6528: }
6529: $srchbysel .= "\n </select>\n";
6530:
6531: my $srchtypesel = ' <select name="srchtype">';
6532: foreach my $option ('begins','contains','exact') {
6533: if ($curr_selected{'srchtype'} eq $option) {
6534: $srchtypesel .= '
6535: <option value="'.$option.'" selected="selected">'.$lt{$option}.'</option>';
6536: } else {
6537: $srchtypesel .= '
6538: <option value="'.$option.'">'.$lt{$option}.'</option>';
6539: }
6540: }
6541: $srchtypesel .= "\n </select>\n";
6542:
6543: my ($newuserscript,$new_user_create);
6544:
6545: if ($forcenewuser) {
6546: if (ref($srch) eq 'HASH') {
6547: if ($srch->{'srchby'} eq 'uname' && $srch->{'srchtype'} eq 'exact' && $srch->{'srchin'} eq 'dom' && $srch->{'srchdomain'} eq $env{'request.role.domain'}) {
6548: if ($cancreate) {
6549: $new_user_create = '<p> <input type="submit" name="forcenew" value="'.&HTML::Entities::encode(&mt('Make new user "[_1]"',$srchterm),'<>&"').'" onclick="javascript:setSearch(\'1\','.$caller.');" /> </p>';
6550: } else {
6551: my $helplink = ' href="javascript:helpMenu('."'display'".')"';
6552: my %usertypetext = (
6553: official => 'institutional',
6554: unofficial => 'non-institutional',
6555: );
6556: $new_user_create = '<br /><span class="LC_warning">'.&mt("You are not authorized to create new $usertypetext{$usertype} users in this domain.").' '.&mt('Contact the <a[_1]>helpdesk</a> for assistance.',$helplink).'</span><br /><br />';
6557: }
6558: }
6559: }
6560:
6561: $newuserscript = <<"ENDSCRIPT";
6562:
6563: function setSearch(createnew,callingForm) {
6564: if (createnew == 1) {
6565: for (var i=0; i<callingForm.srchby.length; i++) {
6566: if (callingForm.srchby.options[i].value == 'uname') {
6567: callingForm.srchby.selectedIndex = i;
6568: }
6569: }
6570: for (var i=0; i<callingForm.srchin.length; i++) {
6571: if ( callingForm.srchin.options[i].value == 'dom') {
6572: callingForm.srchin.selectedIndex = i;
6573: }
6574: }
6575: for (var i=0; i<callingForm.srchtype.length; i++) {
6576: if (callingForm.srchtype.options[i].value == 'exact') {
6577: callingForm.srchtype.selectedIndex = i;
6578: }
6579: }
6580: for (var i=0; i<callingForm.srchdomain.length; i++) {
6581: if (callingForm.srchdomain.options[i].value == '$env{'request.role.domain'}') {
6582: callingForm.srchdomain.selectedIndex = i;
6583: }
6584: }
6585: }
6586: }
6587: ENDSCRIPT
6588:
6589: }
6590:
6591: my $output = <<"END_BLOCK";
6592: <script type="text/javascript">
6593: function validateEntry(callingForm) {
6594:
6595: var checkok = 1;
6596: var srchin;
6597: for (var i=0; i<callingForm.srchin.length; i++) {
6598: if ( callingForm.srchin[i].checked ) {
6599: srchin = callingForm.srchin[i].value;
6600: }
6601: }
6602:
6603: var srchtype = callingForm.srchtype.options[callingForm.srchtype.selectedIndex].value;
6604: var srchby = callingForm.srchby.options[callingForm.srchby.selectedIndex].value;
6605: var srchdomain = callingForm.srchdomain.options[callingForm.srchdomain.selectedIndex].value;
6606: var srchterm = callingForm.srchterm.value;
6607: var srchin = callingForm.srchin.options[callingForm.srchin.selectedIndex].value;
6608: var msg = "";
6609:
6610: if (srchterm == "") {
6611: checkok = 0;
6612: msg += "$lt{'youm'}\\n";
6613: }
6614:
6615: if (srchtype== 'begins') {
6616: if (srchterm.length < 2) {
6617: checkok = 0;
6618: msg += "$lt{'thte'}\\n";
6619: }
6620: }
6621:
6622: if (srchtype== 'contains') {
6623: if (srchterm.length < 3) {
6624: checkok = 0;
6625: msg += "$lt{'thet'}\\n";
6626: }
6627: }
6628: if (srchin == 'instd') {
6629: if (srchdomain == '') {
6630: checkok = 0;
6631: msg += "$lt{'yomc'}\\n";
6632: }
6633: }
6634: if (srchin == 'dom') {
6635: if (srchdomain == '') {
6636: checkok = 0;
6637: msg += "$lt{'ymcd'}\\n";
6638: }
6639: }
6640: if (srchby == 'lastfirst') {
6641: if (srchterm.indexOf(",") == -1) {
6642: checkok = 0;
6643: msg += "$lt{'whus'}\\n";
6644: }
6645: if (srchterm.indexOf(",") == srchterm.length -1) {
6646: checkok = 0;
6647: msg += "$lt{'whse'}\\n";
6648: }
6649: }
6650: if (checkok == 0) {
6651: alert("$lt{'thfo'}\\n"+msg);
6652: return;
6653: }
6654: if (checkok == 1) {
6655: callingForm.submit();
6656: }
6657: }
6658:
6659: $newuserscript
6660:
6661: </script>
6662:
6663: $new_user_create
6664:
6665: <table>
6666: <tr>
6667: <td>$lt{'doma'}:</td>
6668: <td>$domform</td>
6669: </td>
6670: </tr>
6671: <tr>
6672: <td>$lt{'usr'}:</td>
6673: <td>$srchbysel
6674: $srchtypesel
6675: <input type="text" size="15" name="srchterm" value="$srchterm" />
6676: $srchinsel
6677: </td>
6678: </tr>
6679: </table>
6680: <br />
6681: END_BLOCK
6682:
6683: return $output;
6684: }
6685:
6686: sub user_rule_check {
6687: my ($usershash,$checks,$alerts,$rulematch,$inst_results,$curr_rules,$got_rules) = @_;
6688: my $response;
6689: if (ref($usershash) eq 'HASH') {
6690: foreach my $user (keys(%{$usershash})) {
6691: my ($uname,$udom) = split(/:/,$user);
6692: next if ($udom eq '' || $uname eq '');
6693: my ($id,$newuser);
6694: if (ref($usershash->{$user}) eq 'HASH') {
6695: $newuser = $usershash->{$user}->{'newuser'};
6696: $id = $usershash->{$user}->{'id'};
6697: }
6698: my $inst_response;
6699: if (ref($checks) eq 'HASH') {
6700: if (defined($checks->{'username'})) {
6701: ($inst_response,%{$inst_results->{$user}}) =
6702: &Apache::lonnet::get_instuser($udom,$uname);
6703: } elsif (defined($checks->{'id'})) {
6704: ($inst_response,%{$inst_results->{$user}}) =
6705: &Apache::lonnet::get_instuser($udom,undef,$id);
6706: }
6707: } else {
6708: ($inst_response,%{$inst_results->{$user}}) =
6709: &Apache::lonnet::get_instuser($udom,$uname);
6710: return;
6711: }
6712: if (!$got_rules->{$udom}) {
6713: my %domconfig = &Apache::lonnet::get_dom('configuration',
6714: ['usercreation'],$udom);
6715: if (ref($domconfig{'usercreation'}) eq 'HASH') {
6716: foreach my $item ('username','id') {
6717: if (ref($domconfig{'usercreation'}{$item.'_rule'}) eq 'ARRAY') {
6718: $$curr_rules{$udom}{$item} =
6719: $domconfig{'usercreation'}{$item.'_rule'};
6720: }
6721: }
6722: }
6723: $got_rules->{$udom} = 1;
6724: }
6725: foreach my $item (keys(%{$checks})) {
6726: if (ref($$curr_rules{$udom}) eq 'HASH') {
6727: if (ref($$curr_rules{$udom}{$item}) eq 'ARRAY') {
6728: if (@{$$curr_rules{$udom}{$item}} > 0) {
6729: my %rule_check = &Apache::lonnet::inst_rulecheck($udom,$uname,$id,$item,$$curr_rules{$udom}{$item});
6730: foreach my $rule (@{$$curr_rules{$udom}{$item}}) {
6731: if ($rule_check{$rule}) {
6732: $$rulematch{$user}{$item} = $rule;
6733: if ($inst_response eq 'ok') {
6734: if (ref($inst_results) eq 'HASH') {
6735: if (ref($inst_results->{$user}) eq 'HASH') {
6736: if (keys(%{$inst_results->{$user}}) == 0) {
6737: $$alerts{$item}{$udom}{$uname} = 1;
6738: }
6739: }
6740: }
6741: }
6742: last;
6743: }
6744: }
6745: }
6746: }
6747: }
6748: }
6749: }
6750: }
6751: return;
6752: }
6753:
6754: sub user_rule_formats {
6755: my ($domain,$domdesc,$curr_rules,$check) = @_;
6756: my %text = (
6757: 'username' => 'Usernames',
6758: 'id' => 'IDs',
6759: );
6760: my $output;
6761: my ($rules,$ruleorder) = &Apache::lonnet::inst_userrules($domain,$check);
6762: if ((ref($rules) eq 'HASH') && (ref($ruleorder) eq 'ARRAY')) {
6763: if (@{$ruleorder} > 0) {
6764: $output = '<br />'.&mt("$text{$check} with the following format(s) may <span class=\"LC_cusr_emph\">only</span> be used for verified users at [_1]:",$domdesc).' <ul>';
6765: foreach my $rule (@{$ruleorder}) {
6766: if (ref($curr_rules) eq 'ARRAY') {
6767: if (grep(/^\Q$rule\E$/,@{$curr_rules})) {
6768: if (ref($rules->{$rule}) eq 'HASH') {
6769: $output .= '<li>'.$rules->{$rule}{'name'}.': '.
6770: $rules->{$rule}{'desc'}.'</li>';
6771: }
6772: }
6773: }
6774: }
6775: $output .= '</ul>';
6776: }
6777: }
6778: return $output;
6779: }
6780:
6781: sub instrule_disallow_msg {
6782: my ($checkitem,$domdesc,$count,$mode) = @_;
6783: my $response;
6784: my %text = (
6785: item => 'username',
6786: items => 'usernames',
6787: match => 'matches',
6788: do => 'does',
6789: action => 'a username',
6790: one => 'one',
6791: );
6792: if ($count > 1) {
6793: $text{'item'} = 'usernames';
6794: $text{'match'} ='match';
6795: $text{'do'} = 'do';
6796: $text{'action'} = 'usernames',
6797: $text{'one'} = 'ones';
6798: }
6799: if ($checkitem eq 'id') {
6800: $text{'items'} = 'IDs';
6801: $text{'item'} = 'ID';
6802: $text{'action'} = 'an ID';
6803: if ($count > 1) {
6804: $text{'item'} = 'IDs';
6805: $text{'action'} = 'IDs';
6806: }
6807: }
6808: $response = &mt("The $text{'item'} you chose $text{'match'} the format of $text{'items'} defined for <span class=\"LC_cusr_emph\">[_1]</span>, but the $text{'item'} $text{'do'} not exist in the institutional directory.",$domdesc).'<br />';
6809: if ($mode eq 'upload') {
6810: if ($checkitem eq 'username') {
6811: $response .= &mt("You will need to modify your upload file so it will include $text{'action'} with a different format -- $text{'one'} that will not conflict with 'official' institutional $text{'items'}.");
6812: } elsif ($checkitem eq 'id') {
6813: $response .= &mt("Either upload a file which includes $text{'action'} with a different format -- $text{'one'} that will not conflict with 'official' institutional $text{'items'}, or when associating fields with data columns, omit an association for the ID/Student Number field.");
6814: }
6815: } elsif ($mode eq 'selfcreate') {
6816: if ($checkitem eq 'id') {
6817: $response .= &mt("You must either choose $text{'action'} with a different format -- $text{'one'} that will not conflict with 'official' institutional $text{'items'}, or leave the ID field blank.");
6818: }
6819: } else {
6820: if ($checkitem eq 'username') {
6821: $response .= &mt("You must choose $text{'action'} with a different format -- $text{'one'} that will not conflict with 'official' institutional $text{'items'}.");
6822: } elsif ($checkitem eq 'id') {
6823: $response .= &mt("You must either choose $text{'action'} with a different format -- $text{'one'} that will not conflict with 'official' institutional $text{'items'}, or leave the ID field blank.");
6824: }
6825: }
6826: return $response;
6827: }
6828:
6829: sub personal_data_fieldtitles {
6830: my %fieldtitles = &Apache::lonlocal::texthash (
6831: id => 'Student/Employee ID',
6832: permanentemail => 'E-mail address',
6833: lastname => 'Last Name',
6834: firstname => 'First Name',
6835: middlename => 'Middle Name',
6836: generation => 'Generation',
6837: gen => 'Generation',
6838: );
6839: return %fieldtitles;
6840: }
6841:
6842: sub sorted_inst_types {
6843: my ($dom) = @_;
6844: my ($usertypes,$order) = &Apache::lonnet::retrieve_inst_usertypes($dom);
6845: my $othertitle = &mt('All users');
6846: if ($env{'request.course.id'}) {
6847: $othertitle = &mt('Any users');
6848: }
6849: my @types;
6850: if (ref($order) eq 'ARRAY') {
6851: @types = @{$order};
6852: }
6853: if (@types == 0) {
6854: if (ref($usertypes) eq 'HASH') {
6855: @types = sort(keys(%{$usertypes}));
6856: }
6857: }
6858: if (keys(%{$usertypes}) > 0) {
6859: $othertitle = &mt('Other users');
6860: }
6861: return ($othertitle,$usertypes,\@types);
6862: }
6863:
6864: sub get_institutional_codes {
6865: my ($settings,$allcourses,$LC_code) = @_;
6866: # Get complete list of course sections to update
6867: my @currsections = ();
6868: my @currxlists = ();
6869: my $coursecode = $$settings{'internal.coursecode'};
6870:
6871: if ($$settings{'internal.sectionnums'} ne '') {
6872: @currsections = split(/,/,$$settings{'internal.sectionnums'});
6873: }
6874:
6875: if ($$settings{'internal.crosslistings'} ne '') {
6876: @currxlists = split(/,/,$$settings{'internal.crosslistings'});
6877: }
6878:
6879: if (@currxlists > 0) {
6880: foreach (@currxlists) {
6881: if (m/^([^:]+):(\w*)$/) {
6882: unless (grep/^$1$/,@{$allcourses}) {
6883: push @{$allcourses},$1;
6884: $$LC_code{$1} = $2;
6885: }
6886: }
6887: }
6888: }
6889:
6890: if (@currsections > 0) {
6891: foreach (@currsections) {
6892: if (m/^(\w+):(\w*)$/) {
6893: my $sec = $coursecode.$1;
6894: my $lc_sec = $2;
6895: unless (grep/^$sec$/,@{$allcourses}) {
6896: push @{$allcourses},$sec;
6897: $$LC_code{$sec} = $lc_sec;
6898: }
6899: }
6900: }
6901: }
6902: return;
6903: }
6904:
6905: =pod
6906:
6907: =back
6908:
6909: =head1 HTTP Helpers
6910:
6911: =over 4
6912:
6913: =item * &get_unprocessed_cgi($query,$possible_names)
6914:
6915: Modify the %env hash to contain unprocessed CGI form parameters held in
6916: $query. The parameters listed in $possible_names (an array reference),
6917: will be set in $env{'form.name'} if they do not already exist.
6918:
6919: Typically called with $ENV{'QUERY_STRING'} as the first parameter.
6920: $possible_names is an ref to an array of form element names. As an example:
6921: get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);
6922: will result in $env{'form.uname'} and $env{'form.udom'} being set.
6923:
6924: =cut
6925:
6926: sub get_unprocessed_cgi {
6927: my ($query,$possible_names)= @_;
6928: # $Apache::lonxml::debug=1;
6929: foreach my $pair (split(/&/,$query)) {
6930: my ($name, $value) = split(/=/,$pair);
6931: $name = &unescape($name);
6932: if (!defined($possible_names) || (grep {$_ eq $name} @$possible_names)) {
6933: $value =~ tr/+/ /;
6934: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
6935: unless (defined($env{'form.'.$name})) { &add_to_env('form.'.$name,$value) };
6936: }
6937: }
6938: }
6939:
6940: =pod
6941:
6942: =item * &cacheheader()
6943:
6944: returns cache-controlling header code
6945:
6946: =cut
6947:
6948: sub cacheheader {
6949: unless ($env{'request.method'} eq 'GET') { return ''; }
6950: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
6951: my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
6952: <meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />
6953: <meta HTTP-EQUIV="Pragma" CONTENT="no-cache" />';
6954: return $output;
6955: }
6956:
6957: =pod
6958:
6959: =item * &no_cache($r)
6960:
6961: specifies header code to not have cache
6962:
6963: =cut
6964:
6965: sub no_cache {
6966: my ($r) = @_;
6967: if ($ENV{'REQUEST_METHOD'} ne 'GET' &&
6968: $env{'request.method'} ne 'GET') { return ''; }
6969: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime(time));
6970: $r->no_cache(1);
6971: $r->header_out("Expires" => $date);
6972: $r->header_out("Pragma" => "no-cache");
6973: }
6974:
6975: sub content_type {
6976: my ($r,$type,$charset) = @_;
6977: if ($r) {
6978: # Note that printout.pl calls this with undef for $r.
6979: &no_cache($r);
6980: }
6981: if ($env{'browser.mathml'} && $type eq 'text/html') { $type='text/xml'; }
6982: unless ($charset) {
6983: $charset=&Apache::lonlocal::current_encoding;
6984: }
6985: if ($charset) { $type.='; charset='.$charset; }
6986: if ($r) {
6987: $r->content_type($type);
6988: } else {
6989: print("Content-type: $type\n\n");
6990: }
6991: }
6992:
6993: =pod
6994:
6995: =item * &add_to_env($name,$value)
6996:
6997: adds $name to the %env hash with value
6998: $value, if $name already exists, the entry is converted to an array
6999: reference and $value is added to the array.
7000:
7001: =cut
7002:
7003: sub add_to_env {
7004: my ($name,$value)=@_;
7005: if (defined($env{$name})) {
7006: if (ref($env{$name})) {
7007: #already have multiple values
7008: push(@{ $env{$name} },$value);
7009: } else {
7010: #first time seeing multiple values, convert hash entry to an arrayref
7011: my $first=$env{$name};
7012: undef($env{$name});
7013: push(@{ $env{$name} },$first,$value);
7014: }
7015: } else {
7016: $env{$name}=$value;
7017: }
7018: }
7019:
7020: =pod
7021:
7022: =item * &get_env_multiple($name)
7023:
7024: gets $name from the %env hash, it seemlessly handles the cases where multiple
7025: values may be defined and end up as an array ref.
7026:
7027: returns an array of values
7028:
7029: =cut
7030:
7031: sub get_env_multiple {
7032: my ($name) = @_;
7033: my @values;
7034: if (defined($env{$name})) {
7035: # exists is it an array
7036: if (ref($env{$name})) {
7037: @values=@{ $env{$name} };
7038: } else {
7039: $values[0]=$env{$name};
7040: }
7041: }
7042: return(@values);
7043: }
7044:
7045: sub ask_for_embedded_content {
7046: my ($actionurl,$state,$allfiles,$codebase,$args)=@_;
7047: my $upload_output = '
7048: <form name="upload_embedded" action="'.$actionurl.'"
7049: method="post" enctype="multipart/form-data">';
7050: $upload_output .= $state;
7051: $upload_output .= '<b>Upload embedded files</b>:<br />'.&start_data_table();
7052:
7053: my $num = 0;
7054: foreach my $embed_file (sort {lc($a) cmp lc($b)} keys(%{$allfiles})) {
7055: $upload_output .= &start_data_table_row().
7056: '<td>'.$embed_file.'</td><td>';
7057: if ($args->{'ignore_remote_references'}
7058: && $embed_file =~ m{^\w+://}) {
7059: $upload_output.='<span class="LC_warning">'.&mt("URL points to other server.").'</span>';
7060: } elsif ($args->{'error_on_invalid_names'}
7061: && $embed_file ne &Apache::lonnet::clean_filename($embed_file,{'keep_path' => 1,})) {
7062:
7063: $upload_output.='<span class="LC_warning">'.&mt("Invalid characters").'</span>';
7064:
7065: } else {
7066: $upload_output .='
7067: <input name="embedded_item_'.$num.'" type="file" value="" />
7068: <input name="embedded_orig_'.$num.'" type="hidden" value="'.&escape($embed_file).'" />';
7069: my $attrib = join(':',@{$$allfiles{$embed_file}});
7070: $upload_output .=
7071: "\n\t\t".
7072: '<input name="embedded_attrib_'.$num.'" type="hidden" value="'.
7073: $attrib.'" />';
7074: if (exists($$codebase{$embed_file})) {
7075: $upload_output .=
7076: "\n\t\t".
7077: '<input name="codebase_'.$num.'" type="hidden" value="'.
7078: &escape($$codebase{$embed_file}).'" />';
7079: }
7080: }
7081: $upload_output .= '</td>'.&Apache::loncommon::end_data_table_row();
7082: $num++;
7083: }
7084: $upload_output .= &Apache::loncommon::end_data_table().'<br />
7085: <input type ="hidden" name="number_embedded_items" value="'.$num.'" />
7086: <input type ="submit" value="'.&mt('Upload Listed Files').'" />
7087: '.&mt('(only files for which a location has been provided will be uploaded)').'
7088: </form>';
7089: return $upload_output;
7090: }
7091:
7092: sub upload_embedded {
7093: my ($context,$dirpath,$uname,$udom,$dir_root,$url_root,$group,$disk_quota,
7094: $current_disk_usage) = @_;
7095: my $output;
7096: for (my $i=0; $i<$env{'form.number_embedded_items'}; $i++) {
7097: next if (!exists($env{'form.embedded_item_'.$i.'.filename'}));
7098: my $orig_uploaded_filename =
7099: $env{'form.embedded_item_'.$i.'.filename'};
7100:
7101: $env{'form.embedded_orig_'.$i} =
7102: &unescape($env{'form.embedded_orig_'.$i});
7103: my ($path,$fname) =
7104: ($env{'form.embedded_orig_'.$i} =~ m{(.*/)([^/]*)});
7105: # no path, whole string is fname
7106: if (!$fname) { $fname = $env{'form.embedded_orig_'.$i} };
7107:
7108: $path = $env{'form.currentpath'}.$path;
7109: $fname = &Apache::lonnet::clean_filename($fname);
7110: # See if there is anything left
7111: next if ($fname eq '');
7112:
7113: # Check if file already exists as a file or directory.
7114: my ($state,$msg);
7115: if ($context eq 'portfolio') {
7116: my $port_path = $dirpath;
7117: if ($group ne '') {
7118: $port_path = "groups/$group/$port_path";
7119: }
7120: ($state,$msg) = &check_for_upload($path,$fname,$group,'embedded_item_'.$i,
7121: $dir_root,$port_path,$disk_quota,
7122: $current_disk_usage,$uname,$udom);
7123: if ($state eq 'will_exceed_quota'
7124: || $state eq 'file_locked'
7125: || $state eq 'file_exists' ) {
7126: $output .= $msg;
7127: next;
7128: }
7129: } elsif (($context eq 'author') || ($context eq 'testbank')) {
7130: ($state,$msg) = &check_for_existing($path,$fname,'embedded_item_'.$i);
7131: if ($state eq 'exists') {
7132: $output .= $msg;
7133: next;
7134: }
7135: }
7136: # Check if extension is valid
7137: if (($fname =~ /\.(\w+)$/) &&
7138: (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
7139: $output .= &mt('Invalid file extension ([_1]) - reserved for LONCAPA use - rename the file with a different extension and re-upload. ',$1);
7140: next;
7141: } elsif (($fname =~ /\.(\w+)$/) &&
7142: (!defined(&Apache::loncommon::fileembstyle($1)))) {
7143: $output .= &mt('Unrecognized file extension ([_1]) - rename the file with a proper extension and re-upload.',$1);
7144: next;
7145: } elsif ($fname=~/\.(\d+)\.(\w+)$/) {
7146: $output .= &mt('File name not allowed - rename the file to remove the number immediately before the file extension([_1]) and re-upload.',$2);
7147: next;
7148: }
7149:
7150: $env{'form.embedded_item_'.$i.'.filename'}=$fname;
7151: if ($context eq 'portfolio') {
7152: my $result=
7153: &Apache::lonnet::userfileupload('embedded_item_'.$i,'',
7154: $dirpath.$path);
7155: if ($result !~ m|^/uploaded/|) {
7156: $output .= '<span class="LC_error">'
7157: .&mt('An error occurred ([_1]) while trying to upload [_2] for embedded element [_3].'
7158: ,$result,$orig_uploaded_filename,$env{'form.embedded_orig_'.$i})
7159: .'</span><br />';
7160: next;
7161: } else {
7162: $output .= '<p>'.&mt('Uploaded [_1]','<span class="LC_filename">'.
7163: $path.$fname.'</span>').'</p>';
7164: }
7165: } else {
7166: # Save the file
7167: my $target = $env{'form.embedded_item_'.$i};
7168: my $fullpath = $dir_root.$dirpath.'/'.$path;
7169: my $dest = $fullpath.$fname;
7170: my $url = $url_root.$dirpath.'/'.$path.$fname;
7171: my @parts=split(/\//,$fullpath);
7172: my $count;
7173: my $filepath = $dir_root;
7174: for ($count=4;$count<=$#parts;$count++) {
7175: $filepath .= "/$parts[$count]";
7176: if ((-e $filepath)!=1) {
7177: mkdir($filepath,0770);
7178: }
7179: }
7180: my $fh;
7181: if (!open($fh,'>'.$dest)) {
7182: &Apache::lonnet::logthis('Failed to create '.$dest);
7183: $output .= '<span class="LC_error">'.
7184: &mt('An error occurred while trying to upload [_1] for embedded element [_2].',$orig_uploaded_filename,$env{'form.embedded_orig_'.$i}).
7185: '</span><br />';
7186: } else {
7187: if (!print $fh $env{'form.embedded_item_'.$i}) {
7188: &Apache::lonnet::logthis('Failed to write to '.$dest);
7189: $output .= '<span class="LC_error">'.
7190: &mt('An error occurred while writing the file [_1] for embedded element [_2].',$orig_uploaded_filename,$env{'form.embedded_orig_'.$i}).
7191: '</span><br />';
7192: } else {
7193: if ($context eq 'testbank') {
7194: $output .= &mt('Embedded file uploaded successfully:').
7195: ' <a href="'.$url.'">'.
7196: $orig_uploaded_filename.'</a><br />';
7197: } else {
7198: $output .= '<font size="+2">'.
7199: &mt('View embedded file: [_1]','<a href="'.$url.'">'.
7200: $orig_uploaded_filename.'</a>').'</font><br />';
7201: }
7202: }
7203: close($fh);
7204: }
7205: }
7206: }
7207: return $output;
7208: }
7209:
7210: sub check_for_existing {
7211: my ($path,$fname,$element) = @_;
7212: my ($state,$msg);
7213: if (-d $path.'/'.$fname) {
7214: $state = 'exists';
7215: $msg = &mt('Unable to upload [_1]. A directory by that name was found in [_2].','<span class="LC_filename">'.$fname.'</span>',$path);
7216: } elsif (-e $path.'/'.$fname) {
7217: $state = 'exists';
7218: $msg = &mt('Unable to upload [_1]. A file by that name was found in [_2].','<span class="LC_filename">'.$fname.'</span>',$path);
7219: }
7220: if ($state eq 'exists') {
7221: $msg = '<span class="LC_error">'.$msg.'</span><br />';
7222: }
7223: return ($state,$msg);
7224: }
7225:
7226: sub check_for_upload {
7227: my ($path,$fname,$group,$element,$portfolio_root,$port_path,
7228: $disk_quota,$current_disk_usage,$uname,$udom) = @_;
7229: my $filesize = (length($env{'form.'.$element})) / 1000; #express in k (1024?)
7230: my $getpropath = 1;
7231: my @dir_list = &Apache::lonnet::dirlist($portfolio_root.$path,$udom,$uname,
7232: $getpropath);
7233: my $found_file = 0;
7234: my $locked_file = 0;
7235: foreach my $line (@dir_list) {
7236: my ($file_name)=split(/\&/,$line,2);
7237: if ($file_name eq $fname){
7238: $file_name = $path.$file_name;
7239: if ($group ne '') {
7240: $file_name = $group.$file_name;
7241: }
7242: $found_file = 1;
7243: if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
7244: $locked_file = 1;
7245: }
7246: }
7247: }
7248: if (($current_disk_usage + $filesize) > $disk_quota){
7249: my $msg = '<span class="LC_error">'.
7250: &mt('Unable to upload [_1]. (size = [_2] kilobytes). Disk quota will be exceeded.','<span class="LC_filename">'.$fname.'</span>',$filesize).'</span>'.
7251: '<br />'.&mt('Disk quota is [_1] kilobytes. Your current disk usage is [_2] kilobytes.',$disk_quota,$current_disk_usage);
7252: return ('will_exceed_quota',$msg);
7253: } elsif ($found_file) {
7254: if ($locked_file) {
7255: my $msg = '<span class="LC_error">';
7256: $msg .= &mt('Unable to upload [_1]. A locked file by that name was found in [_2].','<span class="LC_filename">'.$fname.'</span>','<span class="LC_filename">'.$port_path.$env{'form.currentpath'}.'</span>');
7257: $msg .= '</span><br />';
7258: $msg .= &mt('You will be able to rename or delete existing [_1] after a grade has been assigned.','<span class="LC_filename">'.$fname.'</span>');
7259: return ('file_locked',$msg);
7260: } else {
7261: my $msg = '<span class="LC_error">';
7262: $msg .= &mt('Unable to upload [_1]. A file by that name was found in [_2].','<span class="LC_filename">'.$fname.'</span>',$port_path.$env{'form.currentpath'});
7263: $msg .= '</span>';
7264: $msg .= '<br />';
7265: $msg .= &mt('To upload, rename or delete existing [_1] in [_2].','<span class="LC_filename">'.$fname.'</span>', $port_path.$env{'form.currentpath'});
7266: return ('file_exists',$msg);
7267: }
7268: }
7269: }
7270:
7271:
7272: =pod
7273:
7274: =back
7275:
7276: =head1 CSV Upload/Handling functions
7277:
7278: =over 4
7279:
7280: =item * &upfile_store($r)
7281:
7282: Store uploaded file, $r should be the HTTP Request object,
7283: needs $env{'form.upfile'}
7284: returns $datatoken to be put into hidden field
7285:
7286: =cut
7287:
7288: sub upfile_store {
7289: my $r=shift;
7290: $env{'form.upfile'}=~s/\r/\n/gs;
7291: $env{'form.upfile'}=~s/\f/\n/gs;
7292: $env{'form.upfile'}=~s/\n+/\n/gs;
7293: $env{'form.upfile'}=~s/\n+$//gs;
7294:
7295: my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
7296: '_enroll_'.$env{'request.course.id'}.'_'.time.'_'.$$;
7297: {
7298: my $datafile = $r->dir_config('lonDaemons').
7299: '/tmp/'.$datatoken.'.tmp';
7300: if ( open(my $fh,">$datafile") ) {
7301: print $fh $env{'form.upfile'};
7302: close($fh);
7303: }
7304: }
7305: return $datatoken;
7306: }
7307:
7308: =pod
7309:
7310: =item * &load_tmp_file($r)
7311:
7312: Load uploaded file from tmp, $r should be the HTTP Request object,
7313: needs $env{'form.datatoken'},
7314: sets $env{'form.upfile'} to the contents of the file
7315:
7316: =cut
7317:
7318: sub load_tmp_file {
7319: my $r=shift;
7320: my @studentdata=();
7321: {
7322: my $studentfile = $r->dir_config('lonDaemons').
7323: '/tmp/'.$env{'form.datatoken'}.'.tmp';
7324: if ( open(my $fh,"<$studentfile") ) {
7325: @studentdata=<$fh>;
7326: close($fh);
7327: }
7328: }
7329: $env{'form.upfile'}=join('',@studentdata);
7330: }
7331:
7332: =pod
7333:
7334: =item * &upfile_record_sep()
7335:
7336: Separate uploaded file into records
7337: returns array of records,
7338: needs $env{'form.upfile'} and $env{'form.upfiletype'}
7339:
7340: =cut
7341:
7342: sub upfile_record_sep {
7343: if ($env{'form.upfiletype'} eq 'xml') {
7344: } else {
7345: my @records;
7346: foreach my $line (split(/\n/,$env{'form.upfile'})) {
7347: if ($line=~/^\s*$/) { next; }
7348: push(@records,$line);
7349: }
7350: return @records;
7351: }
7352: }
7353:
7354: =pod
7355:
7356: =item * &record_sep($record)
7357:
7358: Separate a record into fields $record should be an item from the upfile_record_sep(), needs $env{'form.upfiletype'}
7359:
7360: =cut
7361:
7362: sub takeleft {
7363: my $index=shift;
7364: return substr('0000'.$index,-4,4);
7365: }
7366:
7367: sub record_sep {
7368: my $record=shift;
7369: my %components=();
7370: if ($env{'form.upfiletype'} eq 'xml') {
7371: } elsif ($env{'form.upfiletype'} eq 'space') {
7372: my $i=0;
7373: foreach my $field (split(/\s+/,$record)) {
7374: $field=~s/^(\"|\')//;
7375: $field=~s/(\"|\')$//;
7376: $components{&takeleft($i)}=$field;
7377: $i++;
7378: }
7379: } elsif ($env{'form.upfiletype'} eq 'tab') {
7380: my $i=0;
7381: foreach my $field (split(/\t/,$record)) {
7382: $field=~s/^(\"|\')//;
7383: $field=~s/(\"|\')$//;
7384: $components{&takeleft($i)}=$field;
7385: $i++;
7386: }
7387: } else {
7388: my $separator=',';
7389: if ($env{'form.upfiletype'} eq 'semisv') {
7390: $separator=';';
7391: }
7392: my $i=0;
7393: # the character we are looking for to indicate the end of a quote or a record
7394: my $looking_for=$separator;
7395: # do not add the characters to the fields
7396: my $ignore=0;
7397: # we just encountered a separator (or the beginning of the record)
7398: my $just_found_separator=1;
7399: # store the field we are working on here
7400: my $field='';
7401: # work our way through all characters in record
7402: foreach my $character ($record=~/(.)/g) {
7403: if ($character eq $looking_for) {
7404: if ($character ne $separator) {
7405: # Found the end of a quote, again looking for separator
7406: $looking_for=$separator;
7407: $ignore=1;
7408: } else {
7409: # Found a separator, store away what we got
7410: $components{&takeleft($i)}=$field;
7411: $i++;
7412: $just_found_separator=1;
7413: $ignore=0;
7414: $field='';
7415: }
7416: next;
7417: }
7418: # single or double quotation marks after a separator indicate beginning of a quote
7419: # we are now looking for the end of the quote and need to ignore separators
7420: if ((($character eq '"') || ($character eq "'")) && ($just_found_separator)) {
7421: $looking_for=$character;
7422: next;
7423: }
7424: # ignore would be true after we reached the end of a quote
7425: if ($ignore) { next; }
7426: if (($just_found_separator) && ($character=~/\s/)) { next; }
7427: $field.=$character;
7428: $just_found_separator=0;
7429: }
7430: # catch the very last entry, since we never encountered the separator
7431: $components{&takeleft($i)}=$field;
7432: }
7433: return %components;
7434: }
7435:
7436: ######################################################
7437: ######################################################
7438:
7439: =pod
7440:
7441: =item * &upfile_select_html()
7442:
7443: Return HTML code to select a file from the users machine and specify
7444: the file type.
7445:
7446: =cut
7447:
7448: ######################################################
7449: ######################################################
7450: sub upfile_select_html {
7451: my %Types = (
7452: csv => &mt('CSV (comma separated values, spreadsheet)'),
7453: semisv => &mt('Semicolon separated values'),
7454: space => &mt('Space separated'),
7455: tab => &mt('Tabulator separated'),
7456: # xml => &mt('HTML/XML'),
7457: );
7458: my $Str = '<input type="file" name="upfile" size="50" />'.
7459: '<br />Type: <select name="upfiletype">';
7460: foreach my $type (sort(keys(%Types))) {
7461: $Str .= '<option value="'.$type.'" >'.$Types{$type}."</option>\n";
7462: }
7463: $Str .= "</select>\n";
7464: return $Str;
7465: }
7466:
7467: sub get_samples {
7468: my ($records,$toget) = @_;
7469: my @samples=({});
7470: my $got=0;
7471: foreach my $rec (@$records) {
7472: my %temp = &record_sep($rec);
7473: if (! grep(/\S/, values(%temp))) { next; }
7474: if (%temp) {
7475: $samples[$got]=\%temp;
7476: $got++;
7477: if ($got == $toget) { last; }
7478: }
7479: }
7480: return \@samples;
7481: }
7482:
7483: ######################################################
7484: ######################################################
7485:
7486: =pod
7487:
7488: =item * &csv_print_samples($r,$records)
7489:
7490: Prints a table of sample values from each column uploaded $r is an
7491: Apache Request ref, $records is an arrayref from
7492: &Apache::loncommon::upfile_record_sep
7493:
7494: =cut
7495:
7496: ######################################################
7497: ######################################################
7498: sub csv_print_samples {
7499: my ($r,$records) = @_;
7500: my $samples = &get_samples($records,5);
7501:
7502: $r->print(&mt('Samples').'<br />'.&start_data_table().
7503: &start_data_table_header_row());
7504: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
7505: $r->print('<th>'.&mt('Column [_1]',($sample+1)).'</th>'); }
7506: $r->print(&end_data_table_header_row());
7507: foreach my $hash (@$samples) {
7508: $r->print(&start_data_table_row());
7509: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
7510: $r->print('<td>');
7511: if (defined($$hash{$sample})) { $r->print($$hash{$sample}); }
7512: $r->print('</td>');
7513: }
7514: $r->print(&end_data_table_row());
7515: }
7516: $r->print(&end_data_table().'<br />'."\n");
7517: }
7518:
7519: ######################################################
7520: ######################################################
7521:
7522: =pod
7523:
7524: =item * &csv_print_select_table($r,$records,$d)
7525:
7526: Prints a table to create associations between values and table columns.
7527:
7528: $r is an Apache Request ref,
7529: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
7530: $d is an array of 2 element arrays (internal name, displayed name,defaultcol)
7531:
7532: =cut
7533:
7534: ######################################################
7535: ######################################################
7536: sub csv_print_select_table {
7537: my ($r,$records,$d) = @_;
7538: my $i=0;
7539: my $samples = &get_samples($records,1);
7540: $r->print(&mt('Associate columns with student attributes.')."\n".
7541: &start_data_table().&start_data_table_header_row().
7542: '<th>'.&mt('Attribute').'</th>'.
7543: '<th>'.&mt('Column').'</th>'.
7544: &end_data_table_header_row()."\n");
7545: foreach my $array_ref (@$d) {
7546: my ($value,$display,$defaultcol)=@{ $array_ref };
7547: $r->print(&start_data_table_row().'<tr><td>'.$display.'</td>');
7548:
7549: $r->print('<td><select name=f'.$i.
7550: ' onchange="javascript:flip(this.form,'.$i.');">');
7551: $r->print('<option value="none"></option>');
7552: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
7553: $r->print('<option value="'.$sample.'"'.
7554: ($sample eq $defaultcol ? ' selected="selected" ' : '').
7555: '>'.&mt('Column [_1]',($sample+1)).'</option>');
7556: }
7557: $r->print('</select></td>'.&end_data_table_row()."\n");
7558: $i++;
7559: }
7560: $r->print(&end_data_table());
7561: $i--;
7562: return $i;
7563: }
7564:
7565: ######################################################
7566: ######################################################
7567:
7568: =pod
7569:
7570: =item * &csv_samples_select_table($r,$records,$d)
7571:
7572: Prints a table of sample values from the upload and can make associate samples to internal names.
7573:
7574: $r is an Apache Request ref,
7575: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
7576: $d is an array of 2 element arrays (internal name, displayed name)
7577:
7578: =cut
7579:
7580: ######################################################
7581: ######################################################
7582: sub csv_samples_select_table {
7583: my ($r,$records,$d) = @_;
7584: my $i=0;
7585: #
7586: my $max_samples = 5;
7587: my $samples = &get_samples($records,$max_samples);
7588: $r->print(&start_data_table().
7589: &start_data_table_header_row().'<th>'.
7590: &mt('Field').'</th><th>'.&mt('Samples').'</th>'.
7591: &end_data_table_header_row());
7592:
7593: foreach my $key (sort(keys(%{ $samples->[0] }))) {
7594: $r->print(&start_data_table_row().'<td><select name="f'.$i.'"'.
7595: ' onchange="javascript:flip(this.form,'.$i.');">');
7596: foreach my $option (@$d) {
7597: my ($value,$display,$defaultcol)=@{ $option };
7598: $r->print('<option value="'.$value.'"'.
7599: ($i eq $defaultcol ? ' selected="selected" ':'').'>'.
7600: $display.'</option>');
7601: }
7602: $r->print('</select></td><td>');
7603: foreach my $line (0..($max_samples-1)) {
7604: if (defined($samples->[$line]{$key})) {
7605: $r->print($samples->[$line]{$key}."<br />\n");
7606: }
7607: }
7608: $r->print('</td>'.&end_data_table_row());
7609: $i++;
7610: }
7611: $r->print(&end_data_table());
7612: $i--;
7613: return($i);
7614: }
7615:
7616: ######################################################
7617: ######################################################
7618:
7619: =pod
7620:
7621: =item * &clean_excel_name($name)
7622:
7623: Returns a replacement for $name which does not contain any illegal characters.
7624:
7625: =cut
7626:
7627: ######################################################
7628: ######################################################
7629: sub clean_excel_name {
7630: my ($name) = @_;
7631: $name =~ s/[:\*\?\/\\]//g;
7632: if (length($name) > 31) {
7633: $name = substr($name,0,31);
7634: }
7635: return $name;
7636: }
7637:
7638: =pod
7639:
7640: =item * &check_if_partid_hidden($id,$symb,$udom,$uname)
7641:
7642: Returns either 1 or undef
7643:
7644: 1 if the part is to be hidden, undef if it is to be shown
7645:
7646: Arguments are:
7647:
7648: $id the id of the part to be checked
7649: $symb, optional the symb of the resource to check
7650: $udom, optional the domain of the user to check for
7651: $uname, optional the username of the user to check for
7652:
7653: =cut
7654:
7655: sub check_if_partid_hidden {
7656: my ($id,$symb,$udom,$uname) = @_;
7657: my $hiddenparts=&Apache::lonnet::EXT('resource.0.hiddenparts',
7658: $symb,$udom,$uname);
7659: my $truth=1;
7660: #if the string starts with !, then the list is the list to show not hide
7661: if ($hiddenparts=~s/^\s*!//) { $truth=undef; }
7662: my @hiddenlist=split(/,/,$hiddenparts);
7663: foreach my $checkid (@hiddenlist) {
7664: if ($checkid =~ /^\s*\Q$id\E\s*$/) { return $truth; }
7665: }
7666: return !$truth;
7667: }
7668:
7669:
7670: ############################################################
7671: ############################################################
7672:
7673: =pod
7674:
7675: =back
7676:
7677: =head1 cgi-bin script and graphing routines
7678:
7679: =over 4
7680:
7681: =item * &get_cgi_id()
7682:
7683: Inputs: none
7684:
7685: Returns an id which can be used to pass environment variables
7686: to various cgi-bin scripts. These environment variables will
7687: be removed from the users environment after a given time by
7688: the routine &Apache::lonnet::transfer_profile_to_env.
7689:
7690: =cut
7691:
7692: ############################################################
7693: ############################################################
7694: my $uniq=0;
7695: sub get_cgi_id {
7696: $uniq=($uniq+1)%100000;
7697: return (time.'_'.$$.'_'.$uniq);
7698: }
7699:
7700: ############################################################
7701: ############################################################
7702:
7703: =pod
7704:
7705: =item * &DrawBarGraph()
7706:
7707: Facilitates the plotting of data in a (stacked) bar graph.
7708: Puts plot definition data into the users environment in order for
7709: graph.png to plot it. Returns an <img> tag for the plot.
7710: The bars on the plot are labeled '1','2',...,'n'.
7711:
7712: Inputs:
7713:
7714: =over 4
7715:
7716: =item $Title: string, the title of the plot
7717:
7718: =item $xlabel: string, text describing the X-axis of the plot
7719:
7720: =item $ylabel: string, text describing the Y-axis of the plot
7721:
7722: =item $Max: scalar, the maximum Y value to use in the plot
7723: If $Max is < any data point, the graph will not be rendered.
7724:
7725: =item $colors: array ref holding the colors to be used for the data sets when
7726: they are plotted. If undefined, default values will be used.
7727:
7728: =item $labels: array ref holding the labels to use on the x-axis for the bars.
7729:
7730: =item @Values: An array of array references. Each array reference holds data
7731: to be plotted in a stacked bar chart.
7732:
7733: =item If the final element of @Values is a hash reference the key/value
7734: pairs will be added to the graph definition.
7735:
7736: =back
7737:
7738: Returns:
7739:
7740: An <img> tag which references graph.png and the appropriate identifying
7741: information for the plot.
7742:
7743: =cut
7744:
7745: ############################################################
7746: ############################################################
7747: sub DrawBarGraph {
7748: my ($Title,$xlabel,$ylabel,$Max,$colors,$labels,@Values)=@_;
7749: #
7750: if (! defined($colors)) {
7751: $colors = ['#33ff00',
7752: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
7753: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
7754: ];
7755: }
7756: my $extra_settings = {};
7757: if (ref($Values[-1]) eq 'HASH') {
7758: $extra_settings = pop(@Values);
7759: }
7760: #
7761: my $identifier = &get_cgi_id();
7762: my $id = 'cgi.'.$identifier;
7763: if (! @Values || ref($Values[0]) ne 'ARRAY') {
7764: return '';
7765: }
7766: #
7767: my @Labels;
7768: if (defined($labels)) {
7769: @Labels = @$labels;
7770: } else {
7771: for (my $i=0;$i<@{$Values[0]};$i++) {
7772: push (@Labels,$i+1);
7773: }
7774: }
7775: #
7776: my $NumBars = scalar(@{$Values[0]});
7777: if ($NumBars < scalar(@Labels)) { $NumBars = scalar(@Labels); }
7778: my %ValuesHash;
7779: my $NumSets=1;
7780: foreach my $array (@Values) {
7781: next if (! ref($array));
7782: $ValuesHash{$id.'.data.'.$NumSets++} =
7783: join(',',@$array);
7784: }
7785: #
7786: my ($height,$width,$xskip,$bar_width) = (200,120,1,15);
7787: if ($NumBars < 3) {
7788: $width = 120+$NumBars*32;
7789: $xskip = 1;
7790: $bar_width = 30;
7791: } elsif ($NumBars < 5) {
7792: $width = 120+$NumBars*20;
7793: $xskip = 1;
7794: $bar_width = 20;
7795: } elsif ($NumBars < 10) {
7796: $width = 120+$NumBars*15;
7797: $xskip = 1;
7798: $bar_width = 15;
7799: } elsif ($NumBars <= 25) {
7800: $width = 120+$NumBars*11;
7801: $xskip = 5;
7802: $bar_width = 8;
7803: } elsif ($NumBars <= 50) {
7804: $width = 120+$NumBars*8;
7805: $xskip = 5;
7806: $bar_width = 4;
7807: } else {
7808: $width = 120+$NumBars*8;
7809: $xskip = 5;
7810: $bar_width = 4;
7811: }
7812: #
7813: $Max = 1 if ($Max < 1);
7814: if ( int($Max) < $Max ) {
7815: $Max++;
7816: $Max = int($Max);
7817: }
7818: $Title = '' if (! defined($Title));
7819: $xlabel = '' if (! defined($xlabel));
7820: $ylabel = '' if (! defined($ylabel));
7821: $ValuesHash{$id.'.title'} = &escape($Title);
7822: $ValuesHash{$id.'.xlabel'} = &escape($xlabel);
7823: $ValuesHash{$id.'.ylabel'} = &escape($ylabel);
7824: $ValuesHash{$id.'.y_max_value'} = $Max;
7825: $ValuesHash{$id.'.NumBars'} = $NumBars;
7826: $ValuesHash{$id.'.NumSets'} = $NumSets;
7827: $ValuesHash{$id.'.PlotType'} = 'bar';
7828: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
7829: $ValuesHash{$id.'.height'} = $height;
7830: $ValuesHash{$id.'.width'} = $width;
7831: $ValuesHash{$id.'.xskip'} = $xskip;
7832: $ValuesHash{$id.'.bar_width'} = $bar_width;
7833: $ValuesHash{$id.'.labels'} = join(',',@Labels);
7834: #
7835: # Deal with other parameters
7836: while (my ($key,$value) = each(%$extra_settings)) {
7837: $ValuesHash{$id.'.'.$key} = $value;
7838: }
7839: #
7840: &Apache::lonnet::appenv(\%ValuesHash);
7841: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
7842: }
7843:
7844: ############################################################
7845: ############################################################
7846:
7847: =pod
7848:
7849: =item * &DrawXYGraph()
7850:
7851: Facilitates the plotting of data in an XY graph.
7852: Puts plot definition data into the users environment in order for
7853: graph.png to plot it. Returns an <img> tag for the plot.
7854:
7855: Inputs:
7856:
7857: =over 4
7858:
7859: =item $Title: string, the title of the plot
7860:
7861: =item $xlabel: string, text describing the X-axis of the plot
7862:
7863: =item $ylabel: string, text describing the Y-axis of the plot
7864:
7865: =item $Max: scalar, the maximum Y value to use in the plot
7866: If $Max is < any data point, the graph will not be rendered.
7867:
7868: =item $colors: Array ref containing the hex color codes for the data to be
7869: plotted in. If undefined, default values will be used.
7870:
7871: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
7872:
7873: =item $Ydata: Array ref containing Array refs.
7874: Each of the contained arrays will be plotted as a separate curve.
7875:
7876: =item %Values: hash indicating or overriding any default values which are
7877: passed to graph.png.
7878: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
7879:
7880: =back
7881:
7882: Returns:
7883:
7884: An <img> tag which references graph.png and the appropriate identifying
7885: information for the plot.
7886:
7887: =cut
7888:
7889: ############################################################
7890: ############################################################
7891: sub DrawXYGraph {
7892: my ($Title,$xlabel,$ylabel,$Max,$colors,$Xlabels,$Ydata,%Values)=@_;
7893: #
7894: # Create the identifier for the graph
7895: my $identifier = &get_cgi_id();
7896: my $id = 'cgi.'.$identifier;
7897: #
7898: $Title = '' if (! defined($Title));
7899: $xlabel = '' if (! defined($xlabel));
7900: $ylabel = '' if (! defined($ylabel));
7901: my %ValuesHash =
7902: (
7903: $id.'.title' => &escape($Title),
7904: $id.'.xlabel' => &escape($xlabel),
7905: $id.'.ylabel' => &escape($ylabel),
7906: $id.'.y_max_value'=> $Max,
7907: $id.'.labels' => join(',',@$Xlabels),
7908: $id.'.PlotType' => 'XY',
7909: );
7910: #
7911: if (defined($colors) && ref($colors) eq 'ARRAY') {
7912: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
7913: }
7914: #
7915: if (! ref($Ydata) || ref($Ydata) ne 'ARRAY') {
7916: return '';
7917: }
7918: my $NumSets=1;
7919: foreach my $array (@{$Ydata}){
7920: next if (! ref($array));
7921: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
7922: }
7923: $ValuesHash{$id.'.NumSets'} = $NumSets-1;
7924: #
7925: # Deal with other parameters
7926: while (my ($key,$value) = each(%Values)) {
7927: $ValuesHash{$id.'.'.$key} = $value;
7928: }
7929: #
7930: &Apache::lonnet::appenv(\%ValuesHash);
7931: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
7932: }
7933:
7934: ############################################################
7935: ############################################################
7936:
7937: =pod
7938:
7939: =item * &DrawXYYGraph()
7940:
7941: Facilitates the plotting of data in an XY graph with two Y axes.
7942: Puts plot definition data into the users environment in order for
7943: graph.png to plot it. Returns an <img> tag for the plot.
7944:
7945: Inputs:
7946:
7947: =over 4
7948:
7949: =item $Title: string, the title of the plot
7950:
7951: =item $xlabel: string, text describing the X-axis of the plot
7952:
7953: =item $ylabel: string, text describing the Y-axis of the plot
7954:
7955: =item $colors: Array ref containing the hex color codes for the data to be
7956: plotted in. If undefined, default values will be used.
7957:
7958: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
7959:
7960: =item $Ydata1: The first data set
7961:
7962: =item $Min1: The minimum value of the left Y-axis
7963:
7964: =item $Max1: The maximum value of the left Y-axis
7965:
7966: =item $Ydata2: The second data set
7967:
7968: =item $Min2: The minimum value of the right Y-axis
7969:
7970: =item $Max2: The maximum value of the left Y-axis
7971:
7972: =item %Values: hash indicating or overriding any default values which are
7973: passed to graph.png.
7974: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
7975:
7976: =back
7977:
7978: Returns:
7979:
7980: An <img> tag which references graph.png and the appropriate identifying
7981: information for the plot.
7982:
7983: =cut
7984:
7985: ############################################################
7986: ############################################################
7987: sub DrawXYYGraph {
7988: my ($Title,$xlabel,$ylabel,$colors,$Xlabels,$Ydata1,$Min1,$Max1,
7989: $Ydata2,$Min2,$Max2,%Values)=@_;
7990: #
7991: # Create the identifier for the graph
7992: my $identifier = &get_cgi_id();
7993: my $id = 'cgi.'.$identifier;
7994: #
7995: $Title = '' if (! defined($Title));
7996: $xlabel = '' if (! defined($xlabel));
7997: $ylabel = '' if (! defined($ylabel));
7998: my %ValuesHash =
7999: (
8000: $id.'.title' => &escape($Title),
8001: $id.'.xlabel' => &escape($xlabel),
8002: $id.'.ylabel' => &escape($ylabel),
8003: $id.'.labels' => join(',',@$Xlabels),
8004: $id.'.PlotType' => 'XY',
8005: $id.'.NumSets' => 2,
8006: $id.'.two_axes' => 1,
8007: $id.'.y1_max_value' => $Max1,
8008: $id.'.y1_min_value' => $Min1,
8009: $id.'.y2_max_value' => $Max2,
8010: $id.'.y2_min_value' => $Min2,
8011: );
8012: #
8013: if (defined($colors) && ref($colors) eq 'ARRAY') {
8014: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
8015: }
8016: #
8017: if (! ref($Ydata1) || ref($Ydata1) ne 'ARRAY' ||
8018: ! ref($Ydata2) || ref($Ydata2) ne 'ARRAY'){
8019: return '';
8020: }
8021: my $NumSets=1;
8022: foreach my $array ($Ydata1,$Ydata2){
8023: next if (! ref($array));
8024: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
8025: }
8026: #
8027: # Deal with other parameters
8028: while (my ($key,$value) = each(%Values)) {
8029: $ValuesHash{$id.'.'.$key} = $value;
8030: }
8031: #
8032: &Apache::lonnet::appenv(\%ValuesHash);
8033: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
8034: }
8035:
8036: ############################################################
8037: ############################################################
8038:
8039: =pod
8040:
8041: =back
8042:
8043: =head1 Statistics helper routines?
8044:
8045: Bad place for them but what the hell.
8046:
8047: =over 4
8048:
8049: =item * &chartlink()
8050:
8051: Returns a link to the chart for a specific student.
8052:
8053: Inputs:
8054:
8055: =over 4
8056:
8057: =item $linktext: The text of the link
8058:
8059: =item $sname: The students username
8060:
8061: =item $sdomain: The students domain
8062:
8063: =back
8064:
8065: =back
8066:
8067: =cut
8068:
8069: ############################################################
8070: ############################################################
8071: sub chartlink {
8072: my ($linktext, $sname, $sdomain) = @_;
8073: my $link = '<a href="/adm/statistics?reportSelected=student_assessment'.
8074: '&SelectedStudent='.&escape($sname.':'.$sdomain).
8075: '&chartoutputmode='.HTML::Entities::encode('html, with all links').
8076: '">'.$linktext.'</a>';
8077: }
8078:
8079: #######################################################
8080: #######################################################
8081:
8082: =pod
8083:
8084: =head1 Course Environment Routines
8085:
8086: =over 4
8087:
8088: =item * &restore_course_settings()
8089:
8090: =item * &store_course_settings()
8091:
8092: Restores/Store indicated form parameters from the course environment.
8093: Will not overwrite existing values of the form parameters.
8094:
8095: Inputs:
8096: a scalar describing the data (e.g. 'chart', 'problem_analysis')
8097:
8098: a hash ref describing the data to be stored. For example:
8099:
8100: %Save_Parameters = ('Status' => 'scalar',
8101: 'chartoutputmode' => 'scalar',
8102: 'chartoutputdata' => 'scalar',
8103: 'Section' => 'array',
8104: 'Group' => 'array',
8105: 'StudentData' => 'array',
8106: 'Maps' => 'array');
8107:
8108: Returns: both routines return nothing
8109:
8110: =back
8111:
8112: =cut
8113:
8114: #######################################################
8115: #######################################################
8116: sub store_course_settings {
8117: return &store_settings($env{'request.course.id'},@_);
8118: }
8119:
8120: sub store_settings {
8121: # save to the environment
8122: # appenv the same items, just to be safe
8123: my $udom = $env{'user.domain'};
8124: my $uname = $env{'user.name'};
8125: my ($context,$prefix,$Settings) = @_;
8126: my %SaveHash;
8127: my %AppHash;
8128: while (my ($setting,$type) = each(%$Settings)) {
8129: my $basename = join('.','internal',$context,$prefix,$setting);
8130: my $envname = 'environment.'.$basename;
8131: if (exists($env{'form.'.$setting})) {
8132: # Save this value away
8133: if ($type eq 'scalar' &&
8134: (! exists($env{$envname}) ||
8135: $env{$envname} ne $env{'form.'.$setting})) {
8136: $SaveHash{$basename} = $env{'form.'.$setting};
8137: $AppHash{$envname} = $env{'form.'.$setting};
8138: } elsif ($type eq 'array') {
8139: my $stored_form;
8140: if (ref($env{'form.'.$setting})) {
8141: $stored_form = join(',',
8142: map {
8143: &escape($_);
8144: } sort(@{$env{'form.'.$setting}}));
8145: } else {
8146: $stored_form =
8147: &escape($env{'form.'.$setting});
8148: }
8149: # Determine if the array contents are the same.
8150: if ($stored_form ne $env{$envname}) {
8151: $SaveHash{$basename} = $stored_form;
8152: $AppHash{$envname} = $stored_form;
8153: }
8154: }
8155: }
8156: }
8157: my $put_result = &Apache::lonnet::put('environment',\%SaveHash,
8158: $udom,$uname);
8159: if ($put_result !~ /^(ok|delayed)/) {
8160: &Apache::lonnet::logthis('unable to save form parameters, '.
8161: 'got error:'.$put_result);
8162: }
8163: # Make sure these settings stick around in this session, too
8164: &Apache::lonnet::appenv(\%AppHash);
8165: return;
8166: }
8167:
8168: sub restore_course_settings {
8169: return &restore_settings($env{'request.course.id'},@_);
8170: }
8171:
8172: sub restore_settings {
8173: my ($context,$prefix,$Settings) = @_;
8174: while (my ($setting,$type) = each(%$Settings)) {
8175: next if (exists($env{'form.'.$setting}));
8176: my $envname = 'environment.internal.'.$context.'.'.$prefix.
8177: '.'.$setting;
8178: if (exists($env{$envname})) {
8179: if ($type eq 'scalar') {
8180: $env{'form.'.$setting} = $env{$envname};
8181: } elsif ($type eq 'array') {
8182: $env{'form.'.$setting} = [
8183: map {
8184: &unescape($_);
8185: } split(',',$env{$envname})
8186: ];
8187: }
8188: }
8189: }
8190: }
8191:
8192: #######################################################
8193: #######################################################
8194:
8195: =pod
8196:
8197: =head1 Domain E-mail Routines
8198:
8199: =over 4
8200:
8201: =item * &build_recipient_list()
8202:
8203: Build recipient lists for three types of e-mail:
8204: (a) Error Reports, (b) Package Updates, (c) Help requests, generated by
8205: lonerrorhandler.pm, CHECKRPMS and lonsupportreq.pm respectively.
8206:
8207: Inputs:
8208: defmail (scalar - email address of default recipient),
8209: mailing type (scalar - errormail, packagesmail, or helpdeskmail),
8210: defdom (domain for which to retrieve configuration settings),
8211: origmail (scalar - email address of recipient from loncapa.conf,
8212: i.e., predates configuration by DC via domainprefs.pm
8213:
8214: Returns: comma separated list of addresses to which to send e-mail.
8215:
8216: =back
8217:
8218: =cut
8219:
8220: ############################################################
8221: ############################################################
8222: sub build_recipient_list {
8223: my ($defmail,$mailing,$defdom,$origmail) = @_;
8224: my @recipients;
8225: my $otheremails;
8226: my %domconfig =
8227: &Apache::lonnet::get_dom('configuration',['contacts'],$defdom);
8228: if (ref($domconfig{'contacts'}) eq 'HASH') {
8229: if (ref($domconfig{'contacts'}{$mailing}) eq 'HASH') {
8230: my @contacts = ('adminemail','supportemail');
8231: foreach my $item (@contacts) {
8232: if ($domconfig{'contacts'}{$mailing}{$item}) {
8233: my $addr = $domconfig{'contacts'}{$item};
8234: if (!grep(/^\Q$addr\E$/,@recipients)) {
8235: push(@recipients,$addr);
8236: }
8237: }
8238: $otheremails = $domconfig{'contacts'}{$mailing}{'others'};
8239: }
8240: }
8241: } elsif ($origmail ne '') {
8242: push(@recipients,$origmail);
8243: }
8244: if ($defmail ne '') {
8245: push(@recipients,$defmail);
8246: }
8247: if ($otheremails) {
8248: my @others;
8249: if ($otheremails =~ /,/) {
8250: @others = split(/,/,$otheremails);
8251: } else {
8252: push(@others,$otheremails);
8253: }
8254: foreach my $addr (@others) {
8255: if (!grep(/^\Q$addr\E$/,@recipients)) {
8256: push(@recipients,$addr);
8257: }
8258: }
8259: }
8260: my $recipientlist = join(',',@recipients);
8261: return $recipientlist;
8262: }
8263:
8264: ############################################################
8265: ############################################################
8266:
8267: =pod
8268:
8269: =head1 Course Catalog Routines
8270:
8271: =over 4
8272:
8273: =item * &gather_categories()
8274:
8275: Converts category definitions - keys of categories hash stored in
8276: coursecategories in configuration.db on the primary library server in a
8277: domain - to an array. Also generates javascript and idx hash used to
8278: generate Domain Coordinator interface for editing Course Categories.
8279:
8280: Inputs:
8281:
8282: categories (reference to hash of category definitions).
8283:
8284: cats (reference to array of arrays/hashes which encapsulates hierarchy of
8285: categories and subcategories).
8286:
8287: idx (reference to hash of counters used in Domain Coordinator interface for
8288: editing Course Categories).
8289:
8290: jsarray (reference to array of categories used to create Javascript arrays for
8291: Domain Coordinator interface for editing Course Categories).
8292:
8293: Returns: nothing
8294:
8295: Side effects: populates cats, idx and jsarray.
8296:
8297: =cut
8298:
8299: sub gather_categories {
8300: my ($categories,$cats,$idx,$jsarray) = @_;
8301: my %counters;
8302: my $num = 0;
8303: foreach my $item (keys(%{$categories})) {
8304: my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$item);
8305: if ($container eq '' && $depth == 0) {
8306: $cats->[$depth][$categories->{$item}] = $cat;
8307: } else {
8308: $cats->[$depth]{$container}[$categories->{$item}] = $cat;
8309: }
8310: my ($escitem,$tail) = split(/:/,$item,2);
8311: if ($counters{$tail} eq '') {
8312: $counters{$tail} = $num;
8313: $num ++;
8314: }
8315: if (ref($idx) eq 'HASH') {
8316: $idx->{$item} = $counters{$tail};
8317: }
8318: if (ref($jsarray) eq 'ARRAY') {
8319: push(@{$jsarray->[$counters{$tail}]},$item);
8320: }
8321: }
8322: return;
8323: }
8324:
8325: =pod
8326:
8327: =item * &extract_categories()
8328:
8329: Used to generate breadcrumb trails for course categories.
8330:
8331: Inputs:
8332:
8333: categories (reference to hash of category definitions).
8334:
8335: cats (reference to array of arrays/hashes which encapsulates hierarchy of
8336: categories and subcategories).
8337:
8338: trails (reference to array of breacrumb trails for each category).
8339:
8340: allitems (reference to hash - key is category key
8341: (format: escaped(name):escaped(parent category):depth in hierarchy).
8342:
8343: idx (reference to hash of counters used in Domain Coordinator interface for
8344: editing Course Categories).
8345:
8346: jsarray (reference to array of categories used to create Javascript arrays for
8347: Domain Coordinator interface for editing Course Categories).
8348:
8349: subcats (reference to hash of arrays containing all subcategories within each
8350: category, -recursive)
8351:
8352: Returns: nothing
8353:
8354: Side effects: populates trails and allitems hash references.
8355:
8356: =cut
8357:
8358: sub extract_categories {
8359: my ($categories,$cats,$trails,$allitems,$idx,$jsarray,$subcats) = @_;
8360: if (ref($categories) eq 'HASH') {
8361: &gather_categories($categories,$cats,$idx,$jsarray);
8362: if (ref($cats->[0]) eq 'ARRAY') {
8363: for (my $i=0; $i<@{$cats->[0]}; $i++) {
8364: my $name = $cats->[0][$i];
8365: my $item = &escape($name).'::0';
8366: my $trailstr;
8367: if ($name eq 'instcode') {
8368: $trailstr = &mt('Official courses (with institutional codes)');
8369: } else {
8370: $trailstr = $name;
8371: }
8372: if ($allitems->{$item} eq '') {
8373: push(@{$trails},$trailstr);
8374: $allitems->{$item} = scalar(@{$trails})-1;
8375: }
8376: my @parents = ($name);
8377: if (ref($cats->[1]{$name}) eq 'ARRAY') {
8378: for (my $j=0; $j<@{$cats->[1]{$name}}; $j++) {
8379: my $category = $cats->[1]{$name}[$j];
8380: if (ref($subcats) eq 'HASH') {
8381: push(@{$subcats->{$item}},&escape($category).':'.&escape($name).':1');
8382: }
8383: &recurse_categories($cats,2,$category,$trails,$allitems,\@parents,$subcats);
8384: }
8385: } else {
8386: if (ref($subcats) eq 'HASH') {
8387: $subcats->{$item} = [];
8388: }
8389: }
8390: }
8391: }
8392: }
8393: return;
8394: }
8395:
8396: =pod
8397:
8398: =item *&recurse_categories()
8399:
8400: Recursively used to generate breadcrumb trails for course categories.
8401:
8402: Inputs:
8403:
8404: cats (reference to array of arrays/hashes which encapsulates hierarchy of
8405: categories and subcategories).
8406:
8407: depth (current depth in hierarchy of categories and sub-categories - 0 indexed).
8408:
8409: category (current course category, for which breadcrumb trail is being generated).
8410:
8411: trails (reference to array of breadcrumb trails for each category).
8412:
8413: allitems (reference to hash - key is category key
8414: (format: escaped(name):escaped(parent category):depth in hierarchy).
8415:
8416: parents (array containing containers directories for current category,
8417: back to top level).
8418:
8419: Returns: nothing
8420:
8421: Side effects: populates trails and allitems hash references
8422:
8423: =cut
8424:
8425: sub recurse_categories {
8426: my ($cats,$depth,$category,$trails,$allitems,$parents,$subcats) = @_;
8427: my $shallower = $depth - 1;
8428: if (ref($cats->[$depth]{$category}) eq 'ARRAY') {
8429: for (my $k=0; $k<@{$cats->[$depth]{$category}}; $k++) {
8430: my $name = $cats->[$depth]{$category}[$k];
8431: my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower;
8432: my $trailstr = join(' -> ',(@{$parents},$category));
8433: if ($allitems->{$item} eq '') {
8434: push(@{$trails},$trailstr);
8435: $allitems->{$item} = scalar(@{$trails})-1;
8436: }
8437: my $deeper = $depth+1;
8438: push(@{$parents},$category);
8439: if (ref($subcats) eq 'HASH') {
8440: my $subcat = &escape($name).':'.$category.':'.$depth;
8441: for (my $j=@{$parents}; $j>=0; $j--) {
8442: my $higher;
8443: if ($j > 0) {
8444: $higher = &escape($parents->[$j]).':'.
8445: &escape($parents->[$j-1]).':'.$j;
8446: } else {
8447: $higher = &escape($parents->[$j]).'::'.$j;
8448: }
8449: push(@{$subcats->{$higher}},$subcat);
8450: }
8451: }
8452: &recurse_categories($cats,$deeper,$name,$trails,$allitems,$parents,
8453: $subcats);
8454: pop(@{$parents});
8455: }
8456: } else {
8457: my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower;
8458: my $trailstr = join(' -> ',(@{$parents},$category));
8459: if ($allitems->{$item} eq '') {
8460: push(@{$trails},$trailstr);
8461: $allitems->{$item} = scalar(@{$trails})-1;
8462: }
8463: }
8464: return;
8465: }
8466:
8467: =pod
8468:
8469: =item *&assign_categories_table()
8470:
8471: Create a datatable for display of hierarchical categories in a domain,
8472: with checkboxes to allow a course to be categorized.
8473:
8474: Inputs:
8475:
8476: cathash - reference to hash of categories defined for the domain (from
8477: configuration.db)
8478:
8479: currcat - scalar with an & separated list of categories assigned to a course.
8480:
8481: Returns: $output (markup to be displayed)
8482:
8483: =cut
8484:
8485: sub assign_categories_table {
8486: my ($cathash,$currcat) = @_;
8487: my $output;
8488: if (ref($cathash) eq 'HASH') {
8489: my (@cats,@trails,%allitems,%idx,@jsarray,@path,$maxdepth);
8490: &extract_categories($cathash,\@cats,\@trails,\%allitems,\%idx,\@jsarray);
8491: $maxdepth = scalar(@cats);
8492: if (@cats > 0) {
8493: my $itemcount = 0;
8494: if (ref($cats[0]) eq 'ARRAY') {
8495: $output = &Apache::loncommon::start_data_table();
8496: my @currcategories;
8497: if ($currcat ne '') {
8498: @currcategories = split('&',$currcat);
8499: }
8500: for (my $i=0; $i<@{$cats[0]}; $i++) {
8501: my $parent = $cats[0][$i];
8502: my $css_class = $itemcount%2?' class="LC_odd_row"':'';
8503: next if ($parent eq 'instcode');
8504: my $item = &escape($parent).'::0';
8505: my $checked = '';
8506: if (@currcategories > 0) {
8507: if (grep(/^\Q$item\E$/,@currcategories)) {
8508: $checked = ' checked="checked" ';
8509: }
8510: }
8511: $output .= '<tr '.$css_class.'><td><span class="LC_nobreak">'
8512: .'<input type="checkbox" name="usecategory" value="'.
8513: $item.'"'.$checked.' />'.$parent.'</span></td>';
8514: my $depth = 1;
8515: push(@path,$parent);
8516: $output .= &assign_category_rows($itemcount,\@cats,$depth,$parent,\@path,\@currcategories);
8517: pop(@path);
8518: $output .= '</tr><tr><td colspan="'.$maxdepth.'" class="LC_row_separator"></td></tr>';
8519: $itemcount ++;
8520: }
8521: $output .= &Apache::loncommon::end_data_table();
8522: }
8523: }
8524: }
8525: return $output;
8526: }
8527:
8528: =pod
8529:
8530: =item *&assign_category_rows()
8531:
8532: Create a datatable row for display of nested categories in a domain,
8533: with checkboxes to allow a course to be categorized,called recursively.
8534:
8535: Inputs:
8536:
8537: itemcount - track row number for alternating colors
8538:
8539: cats - reference to array of arrays/hashes which encapsulates hierarchy of
8540: categories and subcategories.
8541:
8542: depth - current depth in hierarchy of categories and sub-categories - 0 indexed.
8543:
8544: parent - parent of current category item
8545:
8546: path - Array containing all categories back up through the hierarchy from the
8547: current category to the top level.
8548:
8549: currcategories - reference to array of current categories assigned to the course
8550:
8551: Returns: $output (markup to be displayed).
8552:
8553: =cut
8554:
8555: sub assign_category_rows {
8556: my ($itemcount,$cats,$depth,$parent,$path,$currcategories) = @_;
8557: my ($text,$name,$item,$chgstr);
8558: if (ref($cats) eq 'ARRAY') {
8559: my $maxdepth = scalar(@{$cats});
8560: if (ref($cats->[$depth]) eq 'HASH') {
8561: if (ref($cats->[$depth]{$parent}) eq 'ARRAY') {
8562: my $numchildren = @{$cats->[$depth]{$parent}};
8563: my $css_class = $itemcount%2?' class="LC_odd_row"':'';
8564: $text .= '<td><table class="LC_datatable">';
8565: for (my $j=0; $j<$numchildren; $j++) {
8566: $name = $cats->[$depth]{$parent}[$j];
8567: $item = &escape($name).':'.&escape($parent).':'.$depth;
8568: my $deeper = $depth+1;
8569: my $checked = '';
8570: if (ref($currcategories) eq 'ARRAY') {
8571: if (@{$currcategories} > 0) {
8572: if (grep(/^\Q$item\E$/,@{$currcategories})) {
8573: $checked = ' checked="checked" ';
8574: }
8575: }
8576: }
8577: $text .= '<tr><td><span class="LC_nobreak"><label>'.
8578: '<input type="checkbox" name="usecategory" value="'.
8579: $item.'"'.$checked.' />'.$name.'</label></span></td><td>';
8580: if (ref($path) eq 'ARRAY') {
8581: push(@{$path},$name);
8582: $text .= &assign_category_rows($itemcount,$cats,$deeper,$name,$path,$currcategories);
8583: pop(@{$path});
8584: }
8585: $text .= '</td></tr>';
8586: }
8587: $text .= '</table></td>';
8588: }
8589: }
8590: }
8591: return $text;
8592: }
8593:
8594: ############################################################
8595: ############################################################
8596:
8597:
8598: sub commit_customrole {
8599: my ($udom,$uname,$url,$three,$four,$five,$start,$end,$context) = @_;
8600: my $output = &mt('Assigning custom role').' "'.$five.'" by '.$four.':'.$three.' in '.$url.
8601: ($start?', '.&mt('starting').' '.localtime($start):'').
8602: ($end?', ending '.localtime($end):'').': <b>'.
8603: &Apache::lonnet::assigncustomrole(
8604: $udom,$uname,$url,$three,$four,$five,$end,$start,undef,undef,$context).
8605: '</b><br />';
8606: return $output;
8607: }
8608:
8609: sub commit_standardrole {
8610: my ($udom,$uname,$url,$three,$start,$end,$one,$two,$sec,$context) = @_;
8611: my ($output,$logmsg,$linefeed);
8612: if ($context eq 'auto') {
8613: $linefeed = "\n";
8614: } else {
8615: $linefeed = "<br />\n";
8616: }
8617: if ($three eq 'st') {
8618: my $result = &commit_studentrole(\$logmsg,$udom,$uname,$url,$three,$start,$end,
8619: $one,$two,$sec,$context);
8620: if (($result =~ /^error/) || ($result eq 'not_in_class') ||
8621: ($result eq 'unknown_course') || ($result eq 'refused')) {
8622: $output = $logmsg.' '.&mt('Error: ').$result."\n";
8623: } else {
8624: $output = $logmsg.$linefeed.&mt('Assigning').' '.$three.' in '.$url.
8625: ($start?', '.&mt('starting').' '.localtime($start):'').
8626: ($end?', '.&mt('ending').' '.localtime($end):'').': ';
8627: if ($context eq 'auto') {
8628: $output .= $result.$linefeed.&mt('Add to classlist').': ok';
8629: } else {
8630: $output .= '<b>'.$result.'</b>'.$linefeed.
8631: &mt('Add to classlist').': <b>ok</b>';
8632: }
8633: $output .= $linefeed;
8634: }
8635: } else {
8636: $output = &mt('Assigning').' '.$three.' in '.$url.
8637: ($start?', '.&mt('starting').' '.localtime($start):'').
8638: ($end?', '.&mt('ending').' '.localtime($end):'').': ';
8639: my $result = &Apache::lonnet::assignrole($udom,$uname,$url,$three,$end,$start,'','',$context);
8640: if ($context eq 'auto') {
8641: $output .= $result.$linefeed;
8642: } else {
8643: $output .= '<b>'.$result.'</b>'.$linefeed;
8644: }
8645: }
8646: return $output;
8647: }
8648:
8649: sub commit_studentrole {
8650: my ($logmsg,$udom,$uname,$url,$three,$start,$end,$one,$two,$sec,$context) = @_;
8651: my ($result,$linefeed,$oldsecurl,$newsecurl);
8652: if ($context eq 'auto') {
8653: $linefeed = "\n";
8654: } else {
8655: $linefeed = '<br />'."\n";
8656: }
8657: if (defined($one) && defined($two)) {
8658: my $cid=$one.'_'.$two;
8659: my $oldsec=&Apache::lonnet::getsection($udom,$uname,$cid);
8660: my $secchange = 0;
8661: my $expire_role_result;
8662: my $modify_section_result;
8663: if ($oldsec ne '-1') {
8664: if ($oldsec ne $sec) {
8665: $secchange = 1;
8666: my $now = time;
8667: my $uurl='/'.$cid;
8668: $uurl=~s/\_/\//g;
8669: if ($oldsec) {
8670: $uurl.='/'.$oldsec;
8671: }
8672: $oldsecurl = $uurl;
8673: $expire_role_result =
8674: &Apache::lonnet::assignrole($udom,$uname,$uurl,'st',$now,'','',$context);
8675: if ($env{'request.course.sec'} ne '') {
8676: if ($expire_role_result eq 'refused') {
8677: my @roles = ('st');
8678: my @statuses = ('previous');
8679: my @roledoms = ($one);
8680: my $withsec = 1;
8681: my %roleshash =
8682: &Apache::lonnet::get_my_roles($uname,$udom,'userroles',
8683: \@statuses,\@roles,\@roledoms,$withsec);
8684: if (defined ($roleshash{$two.':'.$one.':st:'.$oldsec})) {
8685: my ($oldstart,$oldend) =
8686: split(':',$roleshash{$two.':'.$one.':st:'.$oldsec});
8687: if ($oldend > 0 && $oldend <= $now) {
8688: $expire_role_result = 'ok';
8689: }
8690: }
8691: }
8692: }
8693: $result = $expire_role_result;
8694: }
8695: }
8696: if (($expire_role_result eq 'ok') || ($secchange == 0)) {
8697: $modify_section_result = &Apache::lonnet::modify_student_enrollment($udom,$uname,undef,undef,undef,undef,undef,$sec,$end,$start,'','',$cid,'',$context);
8698: if ($modify_section_result =~ /^ok/) {
8699: if ($secchange == 1) {
8700: if ($sec eq '') {
8701: $$logmsg .= &mt('Section for [_1] switched from (possibly expired) old section: [_2] to student role without a section.',$uname,$oldsec).$linefeed;
8702: } else {
8703: $$logmsg .= &mt('Section for [_1] switched from (possibly expired) old section: [_2] to new section: [_3].',$uname,$oldsec,$sec).$linefeed;
8704: }
8705: } elsif ($oldsec eq '-1') {
8706: if ($sec eq '') {
8707: $$logmsg .= &mt('New student role without a section for [_1] in course [_2].',$uname,$cid).$linefeed;
8708: } else {
8709: $$logmsg .= &mt('New student role for [_1] in section [_2] in course [_3].',$uname,$sec,$cid).$linefeed;
8710: }
8711: } else {
8712: if ($sec eq '') {
8713: $$logmsg .= &mt('Student [_1] assigned to course [_2] without a section.',$uname,$cid).$linefeed;
8714: } else {
8715: $$logmsg .= &mt('Student [_1] assigned to section [_2] in course [_3].',$uname,$sec,$cid).$linefeed;
8716: }
8717: }
8718: } else {
8719: if ($secchange) {
8720: $$logmsg .= &mt('Error when attempting section change for [_1] from old section "[_2]" to new section: "[_3]" in course [_4] -error:',$uname,$oldsec,$sec,$cid).' '.$modify_section_result.$linefeed;
8721: } else {
8722: $$logmsg .= &mt('Error when attempting to modify role for [_1] for section: "[_2]" in course [_3] -error:',$uname,$sec,$cid).' '.$modify_section_result.$linefeed;
8723: }
8724: }
8725: $result = $modify_section_result;
8726: } elsif ($secchange == 1) {
8727: if ($oldsec eq '') {
8728: $$logmsg .= &mt('Error when attempting to expire existing role without a section for [_1] in course [_3] -error: ',$uname,$cid).' '.$expire_role_result.$linefeed;
8729: } else {
8730: $$logmsg .= &mt('Error when attempting to expire existing role for [_1] in section [_2] in course [_3] -error: ',$uname,$oldsec,$cid).' '.$expire_role_result.$linefeed;
8731: }
8732: if ($expire_role_result eq 'refused') {
8733: my $newsecurl = '/'.$cid;
8734: $newsecurl =~ s/\_/\//g;
8735: if ($sec ne '') {
8736: $newsecurl.='/'.$sec;
8737: }
8738: if (&Apache::lonnet::allowed('cst',$newsecurl) && !(&Apache::lonnet::allowed('cst',$oldsecurl))) {
8739: if ($sec eq '') {
8740: $$logmsg .= &mt('Although your current role has privileges to add students to section "[_1]", you do not have privileges to modify existing enrollments unaffiliated with any section.',$sec).$linefeed;
8741: } else {
8742: $$logmsg .= &mt('Although your current role has privileges to add students to section "[_1]", you do not have privileges to modify existing enrollments in other sections.',$sec).$linefeed;
8743: }
8744: }
8745: }
8746: }
8747: } else {
8748: $$logmsg .= &mt('Incomplete course id defined.').$linefeed.&mt('Addition of user [_1] from domain [_2] to course [_3], section [_4] not completed.',$uname,$udom,$one.'_'.$two,$sec).$linefeed;
8749: $result = "error: incomplete course id\n";
8750: }
8751: return $result;
8752: }
8753:
8754: ############################################################
8755: ############################################################
8756:
8757: sub check_clone {
8758: my ($args,$linefeed) = @_;
8759: my $cloneid='/'.$args->{'clonedomain'}.'/'.$args->{'clonecourse'};
8760: my ($clonecrsudom,$clonecrsunum)= &LONCAPA::split_courseid($cloneid);
8761: my $clonehome=&Apache::lonnet::homeserver($clonecrsunum,$clonecrsudom);
8762: my $clonemsg;
8763: my $can_clone = 0;
8764:
8765: if ($clonehome eq 'no_host') {
8766: $clonemsg = &mt('No new course created.').$linefeed.&mt('A new course could not be cloned from the specified original - [_1] - because it is a non-existent course.',$args->{'clonecourse'}.':'.$args->{'clonedomain'});
8767: } else {
8768: my %clonedesc = &Apache::lonnet::coursedescription($cloneid,{'one_time' => 1});
8769: if ($env{'request.role.domain'} eq $args->{'clonedomain'}) {
8770: $can_clone = 1;
8771: } else {
8772: my %clonehash = &Apache::lonnet::get('environment',['cloners'],
8773: $args->{'clonedomain'},$args->{'clonecourse'});
8774: my @cloners = split(/,/,$clonehash{'cloners'});
8775: if (grep(/^\*$/,@cloners)) {
8776: $can_clone = 1;
8777: } elsif (grep(/^\*\:\Q$args->{'ccdomain'}\E$/,@cloners)) {
8778: $can_clone = 1;
8779: } else {
8780: my %roleshash =
8781: &Apache::lonnet::get_my_roles($args->{'ccuname'},
8782: $args->{'ccdomain'},
8783: 'userroles',['active'],['cc'],
8784: [$args->{'clonedomain'}]);
8785: if (($roleshash{$args->{'clonecourse'}.':'.$args->{'clonedomain'}.':cc'}) || (grep(/^\Q$args->{'ccuname'}\E:\Q$args->{'ccdomain'}\E$/,@cloners))) {
8786: $can_clone = 1;
8787: } else {
8788: $clonemsg = &mt('No new course created.').$linefeed.&mt('The new course could not be cloned from the existing course because the new course owner ([_1]) does not have cloning rights in the existing course ([_2]).',$args->{'ccuname'}.':'.$args->{'ccdomain'},$clonedesc{'description'});
8789: }
8790: }
8791: }
8792: }
8793: return ($can_clone, $clonemsg, $cloneid, $clonehome);
8794: }
8795:
8796: sub construct_course {
8797: my ($args,$logmsg,$courseid,$crsudom,$crsunum,$udom,$uname,$context) = @_;
8798: my $outcome;
8799: my $linefeed = '<br />'."\n";
8800: if ($context eq 'auto') {
8801: $linefeed = "\n";
8802: }
8803:
8804: #
8805: # Are we cloning?
8806: #
8807: my ($can_clone, $clonemsg, $cloneid, $clonehome);
8808: if (($args->{'clonecourse'}) && ($args->{'clonedomain'})) {
8809: ($can_clone, $clonemsg, $cloneid, $clonehome) = &check_clone($args,$linefeed);
8810: if ($context ne 'auto') {
8811: if ($clonemsg ne '') {
8812: $clonemsg = '<span class="LC_error">'.$clonemsg.'</span>';
8813: }
8814: }
8815: $outcome .= $clonemsg.$linefeed;
8816:
8817: if (!$can_clone) {
8818: return (0,$outcome);
8819: }
8820: }
8821:
8822: #
8823: # Open course
8824: #
8825: my $crstype = lc($args->{'crstype'});
8826: my %cenv=();
8827: $$courseid=&Apache::lonnet::createcourse($args->{'course_domain'},
8828: $args->{'cdescr'},
8829: $args->{'curl'},
8830: $args->{'course_home'},
8831: $args->{'nonstandard'},
8832: $args->{'crscode'},
8833: $args->{'ccuname'}.':'.
8834: $args->{'ccdomain'},
8835: $args->{'crstype'});
8836:
8837: # Note: The testing routines depend on this being output; see
8838: # Utils::Course. This needs to at least be output as a comment
8839: # if anyone ever decides to not show this, and Utils::Course::new
8840: # will need to be suitably modified.
8841: $outcome .= &mt('New LON-CAPA [_1] ID: [_2]',$crstype,$$courseid).$linefeed;
8842: #
8843: # Check if created correctly
8844: #
8845: ($$crsudom,$$crsunum)= &LONCAPA::split_courseid($$courseid);
8846: my $crsuhome=&Apache::lonnet::homeserver($$crsunum,$$crsudom);
8847: $outcome .= &mt('Created on').': '.$crsuhome.$linefeed;
8848:
8849: #
8850: # Do the cloning
8851: #
8852: if ($can_clone && $cloneid) {
8853: $clonemsg = &mt('Cloning [_1] from [_2]',$crstype,$clonehome);
8854: if ($context ne 'auto') {
8855: $clonemsg = '<span class="LC_success">'.$clonemsg.'</span>';
8856: }
8857: $outcome .= $clonemsg.$linefeed;
8858: my %oldcenv=&Apache::lonnet::dump('environment',$$crsudom,$$crsunum);
8859: # Copy all files
8860: &Apache::lonclonecourse::copycoursefiles($cloneid,$$courseid,$args->{'datemode'},$args->{'dateshift'});
8861: # Restore URL
8862: $cenv{'url'}=$oldcenv{'url'};
8863: # Restore title
8864: $cenv{'description'}=$oldcenv{'description'};
8865: # Mark as cloned
8866: $cenv{'clonedfrom'}=$cloneid;
8867: # Need to clone grading mode
8868: my %newenv=&Apache::lonnet::get('environment',['grading'],$$crsudom,$$crsunum);
8869: $cenv{'grading'}=$newenv{'grading'};
8870: # Do not clone these environment entries
8871: &Apache::lonnet::del('environment',
8872: ['default_enrollment_start_date',
8873: 'default_enrollment_end_date',
8874: 'question.email',
8875: 'policy.email',
8876: 'comment.email',
8877: 'pch.users.denied',
8878: 'plc.users.denied'],
8879: $$crsudom,$$crsunum);
8880: }
8881:
8882: #
8883: # Set environment (will override cloned, if existing)
8884: #
8885: my @sections = ();
8886: my @xlists = ();
8887: if ($args->{'crstype'}) {
8888: $cenv{'type'}=$args->{'crstype'};
8889: }
8890: if ($args->{'crsid'}) {
8891: $cenv{'courseid'}=$args->{'crsid'};
8892: }
8893: if ($args->{'crscode'}) {
8894: $cenv{'internal.coursecode'}=$args->{'crscode'};
8895: }
8896: if ($args->{'crsquota'} ne '') {
8897: $cenv{'internal.coursequota'}=$args->{'crsquota'};
8898: } else {
8899: $cenv{'internal.coursequota'}=$args->{'crsquota'} = 20;
8900: }
8901: if ($args->{'ccuname'}) {
8902: $cenv{'internal.courseowner'} = $args->{'ccuname'}.
8903: ':'.$args->{'ccdomain'};
8904: } else {
8905: $cenv{'internal.courseowner'} = $args->{'curruser'};
8906: }
8907: my @badclasses = (); # Used to accumulate sections/crosslistings that did not pass classlist access check for course owner.
8908: if ($args->{'crssections'}) {
8909: $cenv{'internal.sectionnums'} = '';
8910: if ($args->{'crssections'} =~ m/,/) {
8911: @sections = split/,/,$args->{'crssections'};
8912: } else {
8913: $sections[0] = $args->{'crssections'};
8914: }
8915: if (@sections > 0) {
8916: foreach my $item (@sections) {
8917: my ($sec,$gp) = split/:/,$item;
8918: my $class = $args->{'crscode'}.$sec;
8919: my $addcheck = &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$class,$cenv{'internal.courseowner'});
8920: $cenv{'internal.sectionnums'} .= $item.',';
8921: unless ($addcheck eq 'ok') {
8922: push @badclasses, $class;
8923: }
8924: }
8925: $cenv{'internal.sectionnums'} =~ s/,$//;
8926: }
8927: }
8928: # do not hide course coordinator from staff listing,
8929: # even if privileged
8930: $cenv{'nothideprivileged'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
8931: # add crosslistings
8932: if ($args->{'crsxlist'}) {
8933: $cenv{'internal.crosslistings'}='';
8934: if ($args->{'crsxlist'} =~ m/,/) {
8935: @xlists = split/,/,$args->{'crsxlist'};
8936: } else {
8937: $xlists[0] = $args->{'crsxlist'};
8938: }
8939: if (@xlists > 0) {
8940: foreach my $item (@xlists) {
8941: my ($xl,$gp) = split/:/,$item;
8942: my $addcheck = &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$xl,$cenv{'internal.courseowner'});
8943: $cenv{'internal.crosslistings'} .= $item.',';
8944: unless ($addcheck eq 'ok') {
8945: push @badclasses, $xl;
8946: }
8947: }
8948: $cenv{'internal.crosslistings'} =~ s/,$//;
8949: }
8950: }
8951: if ($args->{'autoadds'}) {
8952: $cenv{'internal.autoadds'}=$args->{'autoadds'};
8953: }
8954: if ($args->{'autodrops'}) {
8955: $cenv{'internal.autodrops'}=$args->{'autodrops'};
8956: }
8957: # check for notification of enrollment changes
8958: my @notified = ();
8959: if ($args->{'notify_owner'}) {
8960: if ($args->{'ccuname'} ne '') {
8961: push(@notified,$args->{'ccuname'}.':'.$args->{'ccdomain'});
8962: }
8963: }
8964: if ($args->{'notify_dc'}) {
8965: if ($uname ne '') {
8966: push(@notified,$uname.':'.$udom);
8967: }
8968: }
8969: if (@notified > 0) {
8970: my $notifylist;
8971: if (@notified > 1) {
8972: $notifylist = join(',',@notified);
8973: } else {
8974: $notifylist = $notified[0];
8975: }
8976: $cenv{'internal.notifylist'} = $notifylist;
8977: }
8978: if (@badclasses > 0) {
8979: my %lt=&Apache::lonlocal::texthash(
8980: 'tclb' => 'The courses listed below were included as sections or crosslistings affiliated with your new LON-CAPA course. However, if automated course roster updates are enabled for this class, these particular sections/crosslistings will not contribute towards enrollment, because the user identified as the course owner for this LON-CAPA course',
8981: 'dnhr' => 'does not have rights to access enrollment in these classes',
8982: 'adby' => 'as determined by the policies of your institution on access to official classlists'
8983: );
8984: my $badclass_msg = $cenv{'internal.courseowner'}.') - '.$lt{'dnhr'}.
8985: ' ('.$lt{'adby'}.')';
8986: if ($context eq 'auto') {
8987: $outcome .= $badclass_msg.$linefeed;
8988: $outcome .= '<div class="LC_warning">'.$badclass_msg.$linefeed.'<ul>'."\n";
8989: foreach my $item (@badclasses) {
8990: if ($context eq 'auto') {
8991: $outcome .= " - $item\n";
8992: } else {
8993: $outcome .= "<li>$item</li>\n";
8994: }
8995: }
8996: if ($context eq 'auto') {
8997: $outcome .= $linefeed;
8998: } else {
8999: $outcome .= "</ul><br /><br /></div>\n";
9000: }
9001: }
9002: }
9003: if ($args->{'no_end_date'}) {
9004: $args->{'endaccess'} = 0;
9005: }
9006: $cenv{'internal.autostart'}=$args->{'enrollstart'};
9007: $cenv{'internal.autoend'}=$args->{'enrollend'};
9008: $cenv{'default_enrollment_start_date'}=$args->{'startaccess'};
9009: $cenv{'default_enrollment_end_date'}=$args->{'endaccess'};
9010: if ($args->{'showphotos'}) {
9011: $cenv{'internal.showphotos'}=$args->{'showphotos'};
9012: }
9013: $cenv{'internal.authtype'} = $args->{'authtype'};
9014: $cenv{'internal.autharg'} = $args->{'autharg'};
9015: if ( ($cenv{'internal.authtype'} =~ /^krb/) && ($cenv{'internal.autoadds'} == 1)) {
9016: if (! defined($cenv{'internal.autharg'}) || $cenv{'internal.autharg'} eq '') {
9017: my $krb_msg = &mt('As you did not include the default Kerberos domain to be used for authentication in this class, the institutional data used by the automated enrollment process must include the Kerberos domain for each new student');
9018: if ($context eq 'auto') {
9019: $outcome .= $krb_msg;
9020: } else {
9021: $outcome .= '<span class="LC_error">'.$krb_msg.'</span>';
9022: }
9023: $outcome .= $linefeed;
9024: }
9025: }
9026: if (($args->{'ccdomain'}) && ($args->{'ccuname'})) {
9027: if ($args->{'setpolicy'}) {
9028: $cenv{'policy.email'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
9029: }
9030: if ($args->{'setcontent'}) {
9031: $cenv{'question.email'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
9032: }
9033: }
9034: if ($args->{'reshome'}) {
9035: $cenv{'reshome'}=$args->{'reshome'}.'/';
9036: $cenv{'reshome'}=~s/\/+$/\//;
9037: }
9038: #
9039: # course has keyed access
9040: #
9041: if ($args->{'setkeys'}) {
9042: $cenv{'keyaccess'}='yes';
9043: }
9044: # if specified, key authority is not course, but user
9045: # only active if keyaccess is yes
9046: if ($args->{'keyauth'}) {
9047: my ($user,$domain) = split(':',$args->{'keyauth'});
9048: $user = &LONCAPA::clean_username($user);
9049: $domain = &LONCAPA::clean_username($domain);
9050: if ($user ne '' && $domain ne '') {
9051: $cenv{'keyauth'}=$user.':'.$domain;
9052: }
9053: }
9054:
9055: if ($args->{'disresdis'}) {
9056: $cenv{'pch.roles.denied'}='st';
9057: }
9058: if ($args->{'disablechat'}) {
9059: $cenv{'plc.roles.denied'}='st';
9060: }
9061:
9062: # Record we've not yet viewed the Course Initialization Helper for this
9063: # course
9064: $cenv{'course.helper.not.run'} = 1;
9065: #
9066: # Use new Randomseed
9067: #
9068: $cenv{'rndseed'}=&Apache::lonnet::latest_rnd_algorithm_id();;
9069: $cenv{'receiptalg'}=&Apache::lonnet::latest_receipt_algorithm_id();;
9070: #
9071: # The encryption code and receipt prefix for this course
9072: #
9073: $cenv{'internal.encseed'}=$Apache::lonnet::perlvar{'lonReceipt'}.$$.time.int(rand(9999));
9074: $cenv{'internal.encpref'}=100+int(9*rand(99));
9075: #
9076: # By default, use standard grading
9077: if (!defined($cenv{'grading'})) { $cenv{'grading'} = 'standard'; }
9078:
9079: $outcome .= $linefeed.&mt('Setting environment').': '.
9080: &Apache::lonnet::put('environment',\%cenv,$$crsudom,$$crsunum).$linefeed;
9081: #
9082: # Open all assignments
9083: #
9084: if ($args->{'openall'}) {
9085: my $storeunder=$$crsudom.'_'.$$crsunum.'.0.opendate';
9086: my %storecontent = ($storeunder => time,
9087: $storeunder.'.type' => 'date_start');
9088:
9089: $outcome .= &mt('Opening all assignments').': '.&Apache::lonnet::cput
9090: ('resourcedata',\%storecontent,$$crsudom,$$crsunum).$linefeed;
9091: }
9092: #
9093: # Set first page
9094: #
9095: unless (($args->{'nonstandard'}) || ($args->{'firstres'} eq 'blank')
9096: || ($cloneid)) {
9097: use LONCAPA::map;
9098: $outcome .= &mt('Setting first resource').': ';
9099:
9100: my $map = '/uploaded/'.$$crsudom.'/'.$$crsunum.'/default.sequence';
9101: my ($errtext,$fatal)=&LONCAPA::map::mapread($map);
9102:
9103: $outcome .= ($fatal?$errtext:'read ok').' - ';
9104: my $title; my $url;
9105: if ($args->{'firstres'} eq 'syl') {
9106: $title='Syllabus';
9107: $url='/public/'.$$crsudom.'/'.$$crsunum.'/syllabus';
9108: } else {
9109: $title='Navigate Contents';
9110: $url='/adm/navmaps';
9111: }
9112:
9113: $LONCAPA::map::resources[1]=$title.':'.$url.':false:start:res';
9114: (my $outtext,$errtext) = &LONCAPA::map::storemap($map,1);
9115:
9116: if ($errtext) { $fatal=2; }
9117: $outcome .= ($fatal?$errtext:'write ok').$linefeed;
9118: }
9119:
9120: return (1,$outcome);
9121: }
9122:
9123: ############################################################
9124: ############################################################
9125:
9126: sub course_type {
9127: my ($cid) = @_;
9128: if (!defined($cid)) {
9129: $cid = $env{'request.course.id'};
9130: }
9131: if (defined($env{'course.'.$cid.'.type'})) {
9132: return $env{'course.'.$cid.'.type'};
9133: } else {
9134: return 'Course';
9135: }
9136: }
9137:
9138: sub group_term {
9139: my $crstype = &course_type();
9140: my %names = (
9141: 'Course' => 'group',
9142: 'Group' => 'team',
9143: );
9144: return $names{$crstype};
9145: }
9146:
9147: sub icon {
9148: my ($file)=@_;
9149: my $curfext = lc((split(/\./,$file))[-1]);
9150: my $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/unknown.gif';
9151: my $embstyle = &Apache::loncommon::fileembstyle($curfext);
9152: if (!(!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn')) {
9153: if (-e $Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
9154: $Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
9155: $curfext.".gif") {
9156: $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
9157: $curfext.".gif";
9158: }
9159: }
9160: return &lonhttpdurl($iconname);
9161: }
9162:
9163: sub lonhttpd_port {
9164: my $lonhttpd_port=$Apache::lonnet::perlvar{'lonhttpdPort'};
9165: if (!defined($lonhttpd_port)) { $lonhttpd_port='8080'; }
9166: # IE doesn't like a secure page getting images from a non-secure
9167: # port (when logging we haven't parsed the browser type so default
9168: # back to secure
9169: if ((!exists($env{'browser.type'}) || $env{'browser.type'} eq 'explorer')
9170: && $ENV{'SERVER_PORT'} == 443) {
9171: return 443;
9172: }
9173: return $lonhttpd_port;
9174:
9175: }
9176:
9177: sub lonhttpdurl {
9178: my ($url)=@_;
9179:
9180: my $lonhttpd_port = &lonhttpd_port();
9181: if ($lonhttpd_port == 443) {
9182: return 'https://'.$ENV{'SERVER_NAME'}.$url;
9183: }
9184: return 'http://'.$ENV{'SERVER_NAME'}.':'.$lonhttpd_port.$url;
9185: }
9186:
9187: sub connection_aborted {
9188: my ($r)=@_;
9189: $r->print(" ");$r->rflush();
9190: my $c = $r->connection;
9191: return $c->aborted();
9192: }
9193:
9194: # Escapes strings that may have embedded 's that will be put into
9195: # strings as 'strings'.
9196: sub escape_single {
9197: my ($input) = @_;
9198: $input =~ s/\\/\\\\/g; # Escape the \'s..(must be first)>
9199: $input =~ s/\'/\\\'/g; # Esacpe the 's....
9200: return $input;
9201: }
9202:
9203: # Same as escape_single, but escape's "'s This
9204: # can be used for "strings"
9205: sub escape_double {
9206: my ($input) = @_;
9207: $input =~ s/\\/\\\\/g; # Escape the /'s..(must be first)>
9208: $input =~ s/\"/\\\"/g; # Esacpe the "s....
9209: return $input;
9210: }
9211:
9212: # Escapes the last element of a full URL.
9213: sub escape_url {
9214: my ($url) = @_;
9215: my @urlslices = split(/\//, $url,-1);
9216: my $lastitem = &escape(pop(@urlslices));
9217: return join('/',@urlslices).'/'.$lastitem;
9218: }
9219:
9220: # -------------------------------------------------------- Initliaze user login
9221: sub init_user_environment {
9222: my ($r, $username, $domain, $authhost, $form, $args) = @_;
9223: my $lonids=$Apache::lonnet::perlvar{'lonIDsDir'};
9224:
9225: my $public=($username eq 'public' && $domain eq 'public');
9226:
9227: # See if old ID present, if so, remove
9228:
9229: my ($filename,$cookie,$userroles);
9230: my $now=time;
9231:
9232: if ($public) {
9233: my $max_public=100;
9234: my $oldest;
9235: my $oldest_time=0;
9236: for(my $next=1;$next<=$max_public;$next++) {
9237: if (-e $lonids."/publicuser_$next.id") {
9238: my $mtime=(stat($lonids."/publicuser_$next.id"))[9];
9239: if ($mtime<$oldest_time || !$oldest_time) {
9240: $oldest_time=$mtime;
9241: $oldest=$next;
9242: }
9243: } else {
9244: $cookie="publicuser_$next";
9245: last;
9246: }
9247: }
9248: if (!$cookie) { $cookie="publicuser_$oldest"; }
9249: } else {
9250: # if this isn't a robot, kill any existing non-robot sessions
9251: if (!$args->{'robot'}) {
9252: opendir(DIR,$lonids);
9253: while ($filename=readdir(DIR)) {
9254: if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) {
9255: unlink($lonids.'/'.$filename);
9256: }
9257: }
9258: closedir(DIR);
9259: }
9260: # Give them a new cookie
9261: my $id = ($args->{'robot'} ? 'robot'.$args->{'robot'}
9262: : $now);
9263: $cookie="$username\_$id\_$domain\_$authhost";
9264:
9265: # Initialize roles
9266:
9267: $userroles=&Apache::lonnet::rolesinit($domain,$username,$authhost);
9268: }
9269: # ------------------------------------ Check browser type and MathML capability
9270:
9271: my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
9272: $clientunicode,$clientos) = &decode_user_agent($r);
9273:
9274: # -------------------------------------- Any accessibility options to remember?
9275: if (($form->{'interface'}) && ($form->{'remember'} eq 'true')) {
9276: foreach my $option ('imagesuppress','appletsuppress',
9277: 'embedsuppress','fontenhance','blackwhite') {
9278: if ($form->{$option} eq 'true') {
9279: &Apache::lonnet::put('environment',{$option => 'on'},
9280: $domain,$username);
9281: } else {
9282: &Apache::lonnet::del('environment',[$option],
9283: $domain,$username);
9284: }
9285: }
9286: }
9287: # ------------------------------------------------------------- Get environment
9288:
9289: my %userenv = &Apache::lonnet::dump('environment',$domain,$username);
9290: my ($tmp) = keys(%userenv);
9291: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
9292: # default remote control to off
9293: if ($userenv{'remote'} ne 'on') { $userenv{'remote'} = 'off'; }
9294: } else {
9295: undef(%userenv);
9296: }
9297: if (($userenv{'interface'}) && (!$form->{'interface'})) {
9298: $form->{'interface'}=$userenv{'interface'};
9299: }
9300: $env{'environment.remote'}=$userenv{'remote'};
9301: if ($userenv{'texengine'} eq 'ttm') { $clientmathml=1; }
9302:
9303: # --------------- Do not trust query string to be put directly into environment
9304: foreach my $option ('imagesuppress','appletsuppress',
9305: 'embedsuppress','fontenhance','blackwhite',
9306: 'interface','localpath','localres') {
9307: $form->{$option}=~s/[\n\r\=]//gs;
9308: }
9309: # --------------------------------------------------------- Write first profile
9310:
9311: {
9312: my %initial_env =
9313: ("user.name" => $username,
9314: "user.domain" => $domain,
9315: "user.home" => $authhost,
9316: "browser.type" => $clientbrowser,
9317: "browser.version" => $clientversion,
9318: "browser.mathml" => $clientmathml,
9319: "browser.unicode" => $clientunicode,
9320: "browser.os" => $clientos,
9321: "server.domain" => $Apache::lonnet::perlvar{'lonDefDomain'},
9322: "request.course.fn" => '',
9323: "request.course.uri" => '',
9324: "request.course.sec" => '',
9325: "request.role" => 'cm',
9326: "request.role.adv" => $env{'user.adv'},
9327: "request.host" => $ENV{'REMOTE_ADDR'},);
9328:
9329: if ($form->{'localpath'}) {
9330: $initial_env{"browser.localpath"} = $form->{'localpath'};
9331: $initial_env{"browser.localres"} = $form->{'localres'};
9332: }
9333:
9334: if ($public) {
9335: $initial_env{"environment.remote"} = "off";
9336: }
9337: if ($form->{'interface'}) {
9338: $form->{'interface'}=~s/\W//gs;
9339: $initial_env{"browser.interface"} = $form->{'interface'};
9340: $env{'browser.interface'}=$form->{'interface'};
9341: foreach my $option ('imagesuppress','appletsuppress',
9342: 'embedsuppress','fontenhance','blackwhite') {
9343: if (($form->{$option} eq 'true') ||
9344: ($userenv{$option} eq 'on')) {
9345: $initial_env{"browser.$option"} = "on";
9346: }
9347: }
9348: }
9349:
9350: $env{'user.environment'} = "$lonids/$cookie.id";
9351:
9352: if (tie(my %disk_env,'GDBM_File',"$lonids/$cookie.id",
9353: &GDBM_WRCREAT(),0640)) {
9354: &_add_to_env(\%disk_env,\%initial_env);
9355: &_add_to_env(\%disk_env,\%userenv,'environment.');
9356: &_add_to_env(\%disk_env,$userroles);
9357: if (ref($args->{'extra_env'})) {
9358: &_add_to_env(\%disk_env,$args->{'extra_env'});
9359: }
9360: untie(%disk_env);
9361: } else {
9362: &Apache::lonnet::logthis("<font color=\"blue\">WARNING: ".
9363: 'Could not create environment storage in lonauth: '.$!.'</font>');
9364: return 'error: '.$!;
9365: }
9366: }
9367: $env{'request.role'}='cm';
9368: $env{'request.role.adv'}=$env{'user.adv'};
9369: $env{'browser.type'}=$clientbrowser;
9370:
9371: return $cookie;
9372:
9373: }
9374:
9375: sub _add_to_env {
9376: my ($idf,$env_data,$prefix) = @_;
9377: while (my ($key,$value) = each(%$env_data)) {
9378: $idf->{$prefix.$key} = $value;
9379: $env{$prefix.$key} = $value;
9380: }
9381: }
9382:
9383:
9384: =pod
9385:
9386: =back
9387:
9388: =cut
9389:
9390: 1;
9391: __END__;
9392:
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