1: # The LearningOnline Network with CAPA
2: # a pile of common routines
3: #
4: # $Id: loncommon.pm,v 1.664 2008/07/06 05:01:52 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("/res/adm/pages/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: }
917: return $helptopic;
918: }
919:
920: sub update_help_link {
921: my ($topic,$component_help,$faq,$bug,$stayOnPage) = @_;
922: my $origurl = $ENV{'REQUEST_URI'};
923: $origurl=~s|^/~|/priv/|;
924: my $timestamp = time;
925: foreach my $datum (\$topic,\$component_help,\$faq,\$bug,\$origurl) {
926: $$datum = &escape($$datum);
927: }
928:
929: my $banner_link = "/adm/helpmenu?page=banner&topic=$topic&component_help=$component_help&faq=$faq&bug=$bug&origurl=$origurl&stamp=$timestamp&stayonpage=$stayOnPage";
930: my $output .= <<"ENDOUTPUT";
931: <script type="text/javascript">
932: banner_link = '$banner_link';
933: </script>
934: ENDOUTPUT
935: return $output;
936: }
937:
938: # now just updates the help link and generates a blue icon
939: sub help_open_menu {
940: my ($topic,$component_help,$faq,$bug,$stayOnPage,$width,$height,$text)
941: = @_;
942: $stayOnPage = 0 if (not defined $stayOnPage);
943: # only use pop-up help (stayOnPage == 0)
944: # if environment.remote is on (using remote control UI)
945: if ($env{'browser.interface'} eq 'textual' ||
946: $env{'environment.remote'} eq 'off' ) {
947: $stayOnPage=1;
948: }
949: my $output;
950: if ($component_help) {
951: if (!$text) {
952: $output=&help_open_topic($component_help,undef,$stayOnPage,
953: $width,$height);
954: } else {
955: my $help_text;
956: $help_text=&unescape($topic);
957: $output='<table><tr><td>'.
958: &help_open_topic($component_help,$help_text,$stayOnPage,
959: $width,$height).'</td></tr></table>';
960: }
961: }
962: my $banner_link = &update_help_link($topic,$component_help,$faq,$bug,$stayOnPage);
963: return $output.$banner_link;
964: }
965:
966: sub top_nav_help {
967: my ($text) = @_;
968: $text = &mt($text);
969: my $stay_on_page =
970: ($env{'browser.interface'} eq 'textual' ||
971: $env{'environment.remote'} eq 'off' );
972: my $link = ($stay_on_page) ? "javascript:helpMenu('display')"
973: : "javascript:helpMenu('open')";
974: my $banner_link = &update_help_link(undef,undef,undef,undef,$stay_on_page);
975:
976: my $title = &mt('Get help');
977:
978: return <<"END";
979: $banner_link
980: <a href="$link" title="$title">$text</a>
981: END
982: }
983:
984: sub help_menu_js {
985: my ($text) = @_;
986:
987: my $stayOnPage =
988: ($env{'browser.interface'} eq 'textual' ||
989: $env{'environment.remote'} eq 'off' );
990:
991: my $width = 620;
992: my $height = 600;
993: my $helptopic=&general_help();
994: my $details_link = '/adm/help/'.$helptopic.'.hlp';
995: my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
996: my $start_page =
997: &Apache::loncommon::start_page('Help Menu', undef,
998: {'frameset' => 1,
999: 'js_ready' => 1,
1000: 'add_entries' => {
1001: 'border' => '0',
1002: 'rows' => "110,*",},});
1003: my $end_page =
1004: &Apache::loncommon::end_page({'frameset' => 1,
1005: 'js_ready' => 1,});
1006:
1007: my $template .= <<"ENDTEMPLATE";
1008: <script type="text/javascript">
1009: // <!-- BEGIN LON-CAPA Internal
1010: // <![CDATA[
1011: var banner_link = '';
1012: function helpMenu(target) {
1013: var caller = this;
1014: if (target == 'open') {
1015: var newWindow = null;
1016: try {
1017: newWindow = window.open($nothing,"helpmenu","HEIGHT=$height,WIDTH=$width,resizable=yes,scrollbars=yes" )
1018: }
1019: catch(error) {
1020: writeHelp(caller);
1021: return;
1022: }
1023: if (newWindow) {
1024: caller = newWindow;
1025: }
1026: }
1027: writeHelp(caller);
1028: return;
1029: }
1030: function writeHelp(caller) {
1031: caller.document.writeln('$start_page<frame name="bannerframe" src="'+banner_link+'" /><frame name="bodyframe" src="$details_link" /> $end_page')
1032: caller.document.close()
1033: caller.focus()
1034: }
1035: // ]]>
1036: // END LON-CAPA Internal -->
1037: </script>
1038: ENDTEMPLATE
1039: return $template;
1040: }
1041:
1042: sub help_open_bug {
1043: my ($topic, $text, $stayOnPage, $width, $height) = @_;
1044: unless ($env{'user.adv'}) { return ''; }
1045: unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }
1046: $text = "" if (not defined $text);
1047: $stayOnPage = 0 if (not defined $stayOnPage);
1048: if ($env{'browser.interface'} eq 'textual' ||
1049: $env{'environment.remote'} eq 'off' ) {
1050: $stayOnPage=1;
1051: }
1052: $width = 600 if (not defined $width);
1053: $height = 600 if (not defined $height);
1054:
1055: $topic=~s/\W+/\+/g;
1056: my $link='';
1057: my $template='';
1058: my $url=$Apache::lonnet::perlvar{'BugzillaHost'}.'enter_bug.cgi?product=LON-CAPA&bug_file_loc='.
1059: &escape($ENV{'REQUEST_URI'}).'&component='.$topic;
1060: if (!$stayOnPage)
1061: {
1062: $link = "javascript:void(open('$url', 'Bugzilla', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
1063: }
1064: else
1065: {
1066: $link = $url;
1067: }
1068: # Add the text
1069: if ($text ne "")
1070: {
1071: $template .=
1072: "<table bgcolor='#AA3333' cellspacing='1' cellpadding='1' border='0'><tr>".
1073: "<td bgcolor='#FF5555'><a target=\"_top\" href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1074: }
1075:
1076: # Add the graphic
1077: my $title = &mt('Report a Bug');
1078: my $bugicon=&lonhttpdurl("/adm/lonMisc/smallBug.gif");
1079: $template .= <<"ENDTEMPLATE";
1080: <a target="_top" href="$link" title="$title"><img src="$bugicon" border="0" alt="(Bug: $topic)" /></a>
1081: ENDTEMPLATE
1082: if ($text ne '') { $template.='</td></tr></table>' };
1083: return $template;
1084:
1085: }
1086:
1087: sub help_open_faq {
1088: my ($topic, $text, $stayOnPage, $width, $height) = @_;
1089: unless ($env{'user.adv'}) { return ''; }
1090: unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }
1091: $text = "" if (not defined $text);
1092: $stayOnPage = 0 if (not defined $stayOnPage);
1093: if ($env{'browser.interface'} eq 'textual' ||
1094: $env{'environment.remote'} eq 'off' ) {
1095: $stayOnPage=1;
1096: }
1097: $width = 350 if (not defined $width);
1098: $height = 400 if (not defined $height);
1099:
1100: $topic=~s/\W+/\+/g;
1101: my $link='';
1102: my $template='';
1103: my $url=$Apache::lonnet::perlvar{'FAQHost'}.'/fom/cache/'.$topic.'.html';
1104: if (!$stayOnPage)
1105: {
1106: $link = "javascript:void(open('$url', 'FAQ-O-Matic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
1107: }
1108: else
1109: {
1110: $link = $url;
1111: }
1112:
1113: # Add the text
1114: if ($text ne "")
1115: {
1116: $template .=
1117: "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
1118: "<td bgcolor='#448844'><a target=\"_top\" href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1119: }
1120:
1121: # Add the graphic
1122: my $title = &mt('View the FAQ');
1123: my $faqicon=&lonhttpdurl("/adm/lonMisc/smallFAQ.gif");
1124: $template .= <<"ENDTEMPLATE";
1125: <a target="_top" href="$link" title="$title"><img src="$faqicon" border="0" alt="(FAQ: $topic)" /></a>
1126: ENDTEMPLATE
1127: if ($text ne '') { $template.='</td></tr></table>' };
1128: return $template;
1129:
1130: }
1131:
1132: ###############################################################
1133: ###############################################################
1134:
1135: =pod
1136:
1137: =item * &change_content_javascript():
1138:
1139: This and the next function allow you to create small sections of an
1140: otherwise static HTML page that you can update on the fly with
1141: Javascript, even in Netscape 4.
1142:
1143: The Javascript fragment returned by this function (no E<lt>scriptE<gt> tag)
1144: must be written to the HTML page once. It will prove the Javascript
1145: function "change(name, content)". Calling the change function with the
1146: name of the section
1147: you want to update, matching the name passed to C<changable_area>, and
1148: the new content you want to put in there, will put the content into
1149: that area.
1150:
1151: B<Note>: Netscape 4 only reserves enough space for the changable area
1152: to contain room for the original contents. You need to "make space"
1153: for whatever changes you wish to make, and be B<sure> to check your
1154: code in Netscape 4. This feature in Netscape 4 is B<not> powerful;
1155: it's adequate for updating a one-line status display, but little more.
1156: This script will set the space to 100% width, so you only need to
1157: worry about height in Netscape 4.
1158:
1159: Modern browsers are much less limiting, and if you can commit to the
1160: user not using Netscape 4, this feature may be used freely with
1161: pretty much any HTML.
1162:
1163: =cut
1164:
1165: sub change_content_javascript {
1166: # If we're on Netscape 4, we need to use Layer-based code
1167: if ($env{'browser.type'} eq 'netscape' &&
1168: $env{'browser.version'} =~ /^4\./) {
1169: return (<<NETSCAPE4);
1170: function change(name, content) {
1171: doc = document.layers[name+"___escape"].layers[0].document;
1172: doc.open();
1173: doc.write(content);
1174: doc.close();
1175: }
1176: NETSCAPE4
1177: } else {
1178: # Otherwise, we need to use semi-standards-compliant code
1179: # (technically, "innerHTML" isn't standard but the equivalent
1180: # is really scary, and every useful browser supports it
1181: return (<<DOMBASED);
1182: function change(name, content) {
1183: element = document.getElementById(name);
1184: element.innerHTML = content;
1185: }
1186: DOMBASED
1187: }
1188: }
1189:
1190: =pod
1191:
1192: =item * &changable_area($name,$origContent):
1193:
1194: This provides a "changable area" that can be modified on the fly via
1195: the Javascript code provided in C<change_content_javascript>. $name is
1196: the name you will use to reference the area later; do not repeat the
1197: same name on a given HTML page more then once. $origContent is what
1198: the area will originally contain, which can be left blank.
1199:
1200: =cut
1201:
1202: sub changable_area {
1203: my ($name, $origContent) = @_;
1204:
1205: if ($env{'browser.type'} eq 'netscape' &&
1206: $env{'browser.version'} =~ /^4\./) {
1207: # If this is netscape 4, we need to use the Layer tag
1208: return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>";
1209: } else {
1210: return "<span id='$name'>$origContent</span>";
1211: }
1212: }
1213:
1214: =pod
1215:
1216: =item * &viewport_geometry_js
1217:
1218: Provides javascript object (Geometry) which can provide information about the viewport geometry for the client browser.
1219:
1220: =cut
1221:
1222:
1223: sub viewport_geometry_js {
1224: return <<"GEOMETRY";
1225: var Geometry = {};
1226: function init_geometry() {
1227: if (Geometry.init) { return };
1228: Geometry.init=1;
1229: if (window.innerHeight) {
1230: Geometry.getViewportHeight = function() { return window.innerHeight; };
1231: Geometry.getViewportWidth = function() { return window.innerWidth; };
1232: Geometry.getHorizontalScroll = function() { return window.pageXOffset; };
1233: Geometry.getVerticalScroll = function() { return window.pageYOffset; };
1234: }
1235: else if (document.documentElement && document.documentElement.clientHeight) {
1236: Geometry.getViewportHeight =
1237: function() { return document.documentElement.clientHeight; };
1238: Geometry.getViewportWidth =
1239: function() { return document.documentElement.clientWidth; };
1240:
1241: Geometry.getHorizontalScroll =
1242: function() { return document.documentElement.scrollLeft; };
1243: Geometry.getVerticalScroll =
1244: function() { return document.documentElement.scrollTop; };
1245: }
1246: else if (document.body.clientHeight) {
1247: Geometry.getViewportHeight =
1248: function() { return document.body.clientHeight; };
1249: Geometry.getViewportWidth =
1250: function() { return document.body.clientWidth; };
1251: Geometry.getHorizontalScroll =
1252: function() { return document.body.scrollLeft; };
1253: Geometry.getVerticalScroll =
1254: function() { return document.body.scrollTop; };
1255: }
1256: }
1257:
1258: GEOMETRY
1259: }
1260:
1261: =pod
1262:
1263: =item * &viewport_size_js()
1264:
1265: 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.
1266:
1267: =cut
1268:
1269: sub viewport_size_js {
1270: my $geometry = &viewport_geometry_js();
1271: return <<"DIMS";
1272:
1273: $geometry
1274:
1275: function getViewportDims(width,height) {
1276: init_geometry();
1277: width.value = Geometry.getViewportWidth();
1278: height.value = Geometry.getViewportHeight();
1279: return;
1280: }
1281:
1282: DIMS
1283: }
1284:
1285: =pod
1286:
1287: =item * &resize_textarea_js()
1288:
1289: emits the needed javascript to resize a textarea to be as big as possible
1290:
1291: creates a function resize_textrea that takes two IDs first should be
1292: the id of the element to resize, second should be the id of a div that
1293: surrounds everything that comes after the textarea, this routine needs
1294: to be attached to the <body> for the onload and onresize events.
1295:
1296: =back
1297:
1298: =cut
1299:
1300: sub resize_textarea_js {
1301: my $geometry = &viewport_geometry_js();
1302: return <<"RESIZE";
1303: <script type="text/javascript">
1304: $geometry
1305:
1306: function getX(element) {
1307: var x = 0;
1308: while (element) {
1309: x += element.offsetLeft;
1310: element = element.offsetParent;
1311: }
1312: return x;
1313: }
1314: function getY(element) {
1315: var y = 0;
1316: while (element) {
1317: y += element.offsetTop;
1318: element = element.offsetParent;
1319: }
1320: return y;
1321: }
1322:
1323:
1324: function resize_textarea(textarea_id,bottom_id) {
1325: init_geometry();
1326: var textarea = document.getElementById(textarea_id);
1327: //alert(textarea);
1328:
1329: var textarea_top = getY(textarea);
1330: var textarea_height = textarea.offsetHeight;
1331: var bottom = document.getElementById(bottom_id);
1332: var bottom_top = getY(bottom);
1333: var bottom_height = bottom.offsetHeight;
1334: var window_height = Geometry.getViewportHeight();
1335: var fudge = 23;
1336: var new_height = window_height-fudge-textarea_top-bottom_height;
1337: if (new_height < 300) {
1338: new_height = 300;
1339: }
1340: textarea.style.height=new_height+'px';
1341: }
1342: </script>
1343: RESIZE
1344:
1345: }
1346:
1347: =pod
1348:
1349: =head1 Excel and CSV file utility routines
1350:
1351: =over 4
1352:
1353: =cut
1354:
1355: ###############################################################
1356: ###############################################################
1357:
1358: =pod
1359:
1360: =item * &csv_translate($text)
1361:
1362: Translate $text to allow it to be output as a 'comma separated values'
1363: format.
1364:
1365: =cut
1366:
1367: ###############################################################
1368: ###############################################################
1369: sub csv_translate {
1370: my $text = shift;
1371: $text =~ s/\"/\"\"/g;
1372: $text =~ s/\n/ /g;
1373: return $text;
1374: }
1375:
1376: ###############################################################
1377: ###############################################################
1378:
1379: =pod
1380:
1381: =item * &define_excel_formats()
1382:
1383: Define some commonly used Excel cell formats.
1384:
1385: Currently supported formats:
1386:
1387: =over 4
1388:
1389: =item header
1390:
1391: =item bold
1392:
1393: =item h1
1394:
1395: =item h2
1396:
1397: =item h3
1398:
1399: =item h4
1400:
1401: =item i
1402:
1403: =item date
1404:
1405: =back
1406:
1407: Inputs: $workbook
1408:
1409: Returns: $format, a hash reference.
1410:
1411: =cut
1412:
1413: ###############################################################
1414: ###############################################################
1415: sub define_excel_formats {
1416: my ($workbook) = @_;
1417: my $format;
1418: $format->{'header'} = $workbook->add_format(bold => 1,
1419: bottom => 1,
1420: align => 'center');
1421: $format->{'bold'} = $workbook->add_format(bold=>1);
1422: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
1423: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
1424: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
1425: $format->{'h4'} = $workbook->add_format(bold=>1, size=>12);
1426: $format->{'i'} = $workbook->add_format(italic=>1);
1427: $format->{'date'} = $workbook->add_format(num_format=>
1428: 'mm/dd/yyyy hh:mm:ss');
1429: return $format;
1430: }
1431:
1432: ###############################################################
1433: ###############################################################
1434:
1435: =pod
1436:
1437: =item * &create_workbook()
1438:
1439: Create an Excel worksheet. If it fails, output message on the
1440: request object and return undefs.
1441:
1442: Inputs: Apache request object
1443:
1444: Returns (undef) on failure,
1445: Excel worksheet object, scalar with filename, and formats
1446: from &Apache::loncommon::define_excel_formats on success
1447:
1448: =cut
1449:
1450: ###############################################################
1451: ###############################################################
1452: sub create_workbook {
1453: my ($r) = @_;
1454: #
1455: # Create the excel spreadsheet
1456: my $filename = '/prtspool/'.
1457: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1458: time.'_'.rand(1000000000).'.xls';
1459: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1460: if (! defined($workbook)) {
1461: $r->log_error("Error creating excel spreadsheet $filename: $!");
1462: $r->print('<p>'.&mt("Unable to create new Excel file. ".
1463: "This error has been logged. ".
1464: "Please alert your LON-CAPA administrator").
1465: '</p>');
1466: return (undef);
1467: }
1468: #
1469: $workbook->set_tempdir('/home/httpd/perl/tmp');
1470: #
1471: my $format = &Apache::loncommon::define_excel_formats($workbook);
1472: return ($workbook,$filename,$format);
1473: }
1474:
1475: ###############################################################
1476: ###############################################################
1477:
1478: =pod
1479:
1480: =item * &create_text_file()
1481:
1482: Create a file to write to and eventually make available to the user.
1483: If file creation fails, outputs an error message on the request object and
1484: return undefs.
1485:
1486: Inputs: Apache request object, and file suffix
1487:
1488: Returns (undef) on failure,
1489: Filehandle and filename on success.
1490:
1491: =cut
1492:
1493: ###############################################################
1494: ###############################################################
1495: sub create_text_file {
1496: my ($r,$suffix) = @_;
1497: if (! defined($suffix)) { $suffix = 'txt'; };
1498: my $fh;
1499: my $filename = '/prtspool/'.
1500: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1501: time.'_'.rand(1000000000).'.'.$suffix;
1502: $fh = Apache::File->new('>/home/httpd'.$filename);
1503: if (! defined($fh)) {
1504: $r->log_error("Couldn't open $filename for output $!");
1505: $r->print("Problems occured in creating the output file. ".
1506: "This error has been logged. ".
1507: "Please alert your LON-CAPA administrator.");
1508: }
1509: return ($fh,$filename)
1510: }
1511:
1512:
1513: =pod
1514:
1515: =back
1516:
1517: =cut
1518:
1519: ###############################################################
1520: ## Home server <option> list generating code ##
1521: ###############################################################
1522:
1523: # ------------------------------------------
1524:
1525: sub domain_select {
1526: my ($name,$value,$multiple)=@_;
1527: my %domains=map {
1528: $_ => $_.' '. &Apache::lonnet::domain($_,'description')
1529: } &Apache::lonnet::all_domains();
1530: if ($multiple) {
1531: $domains{''}=&mt('Any domain');
1532: $domains{'select_form_order'} = [sort {lc($a) cmp lc($b) } (keys(%domains))];
1533: return &multiple_select_form($name,$value,4,\%domains);
1534: } else {
1535: $domains{'select_form_order'} = [sort {lc($a) cmp lc($b) } (keys(%domains))];
1536: return &select_form($name,$value,%domains);
1537: }
1538: }
1539:
1540: #-------------------------------------------
1541:
1542: =pod
1543:
1544: =head1 Routines for form select boxes
1545:
1546: =over 4
1547:
1548: =item * &multiple_select_form($name,$value,$size,$hash,$order)
1549:
1550: Returns a string containing a <select> element int multiple mode
1551:
1552:
1553: Args:
1554: $name - name of the <select> element
1555: $value - scalar or array ref of values that should already be selected
1556: $size - number of rows long the select element is
1557: $hash - the elements should be 'option' => 'shown text'
1558: (shown text should already have been &mt())
1559: $order - (optional) array ref of the order to show the elements in
1560:
1561: =cut
1562:
1563: #-------------------------------------------
1564: sub multiple_select_form {
1565: my ($name,$value,$size,$hash,$order)=@_;
1566: my %selected = map { $_ => 1 } ref($value)?@{$value}:($value);
1567: my $output='';
1568: if (! defined($size)) {
1569: $size = 4;
1570: if (scalar(keys(%$hash))<4) {
1571: $size = scalar(keys(%$hash));
1572: }
1573: }
1574: $output.="\n<select name='$name' size='$size' multiple='1'>";
1575: my @order;
1576: if (ref($order) eq 'ARRAY') {
1577: @order = @{$order};
1578: } else {
1579: @order = sort(keys(%$hash));
1580: }
1581: if (exists($$hash{'select_form_order'})) {
1582: @order = @{$$hash{'select_form_order'}};
1583: }
1584:
1585: foreach my $key (@order) {
1586: $output.='<option value="'.&HTML::Entities::encode($key,'"<>&').'" ';
1587: $output.='selected="selected" ' if ($selected{$key});
1588: $output.='>'.$hash->{$key}."</option>\n";
1589: }
1590: $output.="</select>\n";
1591: return $output;
1592: }
1593:
1594: #-------------------------------------------
1595:
1596: =pod
1597:
1598: =item * &select_form($defdom,$name,%hash)
1599:
1600: Returns a string containing a <select name='$name' size='1'> form to
1601: allow a user to select options from a hash option_name => displayed text.
1602: See lonrights.pm for an example invocation and use.
1603:
1604: =cut
1605:
1606: #-------------------------------------------
1607: sub select_form {
1608: my ($def,$name,%hash) = @_;
1609: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1610: my @keys;
1611: if (exists($hash{'select_form_order'})) {
1612: @keys=@{$hash{'select_form_order'}};
1613: } else {
1614: @keys=sort(keys(%hash));
1615: }
1616: foreach my $key (@keys) {
1617: $selectform.=
1618: '<option value="'.&HTML::Entities::encode($key,'"<>&').'" '.
1619: ($key eq $def ? 'selected="selected" ' : '').
1620: ">".&mt($hash{$key})."</option>\n";
1621: }
1622: $selectform.="</select>";
1623: return $selectform;
1624: }
1625:
1626: # For display filters
1627:
1628: sub display_filter {
1629: if (!$env{'form.show'}) { $env{'form.show'}=10; }
1630: if (!$env{'form.displayfilter'}) { $env{'form.displayfilter'}='currentfolder'; }
1631: return '<nobr><label>'.&mt('Records [_1]',
1632: &Apache::lonmeta::selectbox('show',$env{'form.show'},undef,
1633: (&mt('all'),10,20,50,100,1000,10000))).
1634: '</label></nobr> <nobr>'.
1635: &mt('Filter [_1]',
1636: &select_form($env{'form.displayfilter'},
1637: 'displayfilter',
1638: ('currentfolder' => 'Current folder/page',
1639: 'containing' => 'Containing phrase',
1640: 'none' => 'None'))).
1641: '<input type="text" name="containingphrase" size="30" value="'.&HTML::Entities::encode($env{'form.containingphrase'}).'" /></nobr>';
1642: }
1643:
1644: sub gradeleveldescription {
1645: my $gradelevel=shift;
1646: my %gradelevels=(0 => 'Not specified',
1647: 1 => 'Grade 1',
1648: 2 => 'Grade 2',
1649: 3 => 'Grade 3',
1650: 4 => 'Grade 4',
1651: 5 => 'Grade 5',
1652: 6 => 'Grade 6',
1653: 7 => 'Grade 7',
1654: 8 => 'Grade 8',
1655: 9 => 'Grade 9',
1656: 10 => 'Grade 10',
1657: 11 => 'Grade 11',
1658: 12 => 'Grade 12',
1659: 13 => 'Grade 13',
1660: 14 => '100 Level',
1661: 15 => '200 Level',
1662: 16 => '300 Level',
1663: 17 => '400 Level',
1664: 18 => 'Graduate Level');
1665: return &mt($gradelevels{$gradelevel});
1666: }
1667:
1668: sub select_level_form {
1669: my ($deflevel,$name)=@_;
1670: unless ($deflevel) { $deflevel=0; }
1671: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1672: for (my $i=0; $i<=18; $i++) {
1673: $selectform.="<option value=\"$i\" ".
1674: ($i==$deflevel ? 'selected="selected" ' : '').
1675: ">".&gradeleveldescription($i)."</option>\n";
1676: }
1677: $selectform.="</select>";
1678: return $selectform;
1679: }
1680:
1681: #-------------------------------------------
1682:
1683: =pod
1684:
1685: =item * &select_dom_form($defdom,$name,$includeempty,$showdomdesc)
1686:
1687: Returns a string containing a <select name='$name' size='1'> form to
1688: allow a user to select the domain to preform an operation in.
1689: See loncreateuser.pm for an example invocation and use.
1690:
1691: If the $includeempty flag is set, it also includes an empty choice ("no domain
1692: selected");
1693:
1694: If the $showdomdesc flag is set, the domain name is followed by the domain description.
1695:
1696: =cut
1697:
1698: #-------------------------------------------
1699: sub select_dom_form {
1700: my ($defdom,$name,$includeempty,$showdomdesc) = @_;
1701: my @domains = sort {lc($a) cmp lc($b)} (&Apache::lonnet::all_domains());
1702: if ($includeempty) { @domains=('',@domains); }
1703: my $selectdomain = "<select name=\"$name\" size=\"1\">\n";
1704: foreach my $dom (@domains) {
1705: $selectdomain.="<option value=\"$dom\" ".
1706: ($dom eq $defdom ? 'selected="selected" ' : '').'>'.$dom;
1707: if ($showdomdesc) {
1708: if ($dom ne '') {
1709: my $domdesc = &Apache::lonnet::domain($dom,'description');
1710: if ($domdesc ne '') {
1711: $selectdomain .= ' ('.$domdesc.')';
1712: }
1713: }
1714: }
1715: $selectdomain .= "</option>\n";
1716: }
1717: $selectdomain.="</select>";
1718: return $selectdomain;
1719: }
1720:
1721: #-------------------------------------------
1722:
1723: =pod
1724:
1725: =item * &home_server_form_item($domain,$name,$defaultflag)
1726:
1727: input: 4 arguments (two required, two optional) -
1728: $domain - domain of new user
1729: $name - name of form element
1730: $default - Value of 'default' causes a default item to be first
1731: option, and selected by default.
1732: $hide - Value of 'hide' causes hiding of the name of the server,
1733: if 1 server found, or default, if 0 found.
1734: output: returns 2 items:
1735: (a) form element which contains either:
1736: (i) <select name="$name">
1737: <option value="$hostid1">$hostid $servers{$hostid}</option>
1738: <option value="$hostid2">$hostid $servers{$hostid}</option>
1739: </select>
1740: form item if there are multiple library servers in $domain, or
1741: (ii) an <input type="hidden" name="$name" value="$hostid" /> form item
1742: if there is only one library server in $domain.
1743:
1744: (b) number of library servers found.
1745:
1746: See loncreateuser.pm for example of use.
1747:
1748: =cut
1749:
1750: #-------------------------------------------
1751: sub home_server_form_item {
1752: my ($domain,$name,$default,$hide) = @_;
1753: my %servers = &Apache::lonnet::get_servers($domain,'library');
1754: my $result;
1755: my $numlib = keys(%servers);
1756: if ($numlib > 1) {
1757: $result .= '<select name="'.$name.'" />'."\n";
1758: if ($default) {
1759: $result .= '<option value="default" selected>'.&mt('default').
1760: '</option>'."\n";
1761: }
1762: foreach my $hostid (sort(keys(%servers))) {
1763: $result.= '<option value="'.$hostid.'">'.
1764: $hostid.' '.$servers{$hostid}."</option>\n";
1765: }
1766: $result .= '</select>'."\n";
1767: } elsif ($numlib == 1) {
1768: my $hostid;
1769: foreach my $item (keys(%servers)) {
1770: $hostid = $item;
1771: }
1772: $result .= '<input type="hidden" name="'.$name.'" value="'.
1773: $hostid.'" />';
1774: if (!$hide) {
1775: $result .= $hostid.' '.$servers{$hostid};
1776: }
1777: $result .= "\n";
1778: } elsif ($default) {
1779: $result .= '<input type="hidden" name="'.$name.
1780: '" value="default" />';
1781: if (!$hide) {
1782: $result .= &mt('default');
1783: }
1784: $result .= "\n";
1785: }
1786: return ($result,$numlib);
1787: }
1788:
1789: =pod
1790:
1791: =back
1792:
1793: =cut
1794:
1795: ###############################################################
1796: ## Decoding User Agent ##
1797: ###############################################################
1798:
1799: =pod
1800:
1801: =head1 Decoding the User Agent
1802:
1803: =over 4
1804:
1805: =item * &decode_user_agent()
1806:
1807: Inputs: $r
1808:
1809: Outputs:
1810:
1811: =over 4
1812:
1813: =item * $httpbrowser
1814:
1815: =item * $clientbrowser
1816:
1817: =item * $clientversion
1818:
1819: =item * $clientmathml
1820:
1821: =item * $clientunicode
1822:
1823: =item * $clientos
1824:
1825: =back
1826:
1827: =back
1828:
1829: =cut
1830:
1831: ###############################################################
1832: ###############################################################
1833: sub decode_user_agent {
1834: my ($r)=@_;
1835: my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});
1836: my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});
1837: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
1838: if (!$httpbrowser && $r) { $httpbrowser=$r->header_in('User-Agent'); }
1839: my $clientbrowser='unknown';
1840: my $clientversion='0';
1841: my $clientmathml='';
1842: my $clientunicode='0';
1843: for (my $i=0;$i<=$#browsertype;$i++) {
1844: my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
1845: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
1846: $clientbrowser=$bname;
1847: $httpbrowser=~/$vreg/i;
1848: $clientversion=$1;
1849: $clientmathml=($clientversion>=$minv);
1850: $clientunicode=($clientversion>=$univ);
1851: }
1852: }
1853: my $clientos='unknown';
1854: if (($httpbrowser=~/linux/i) ||
1855: ($httpbrowser=~/unix/i) ||
1856: ($httpbrowser=~/ux/i) ||
1857: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
1858: if (($httpbrowser=~/vax/i) ||
1859: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
1860: if ($httpbrowser=~/next/i) { $clientos='next'; }
1861: if (($httpbrowser=~/mac/i) ||
1862: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
1863: if ($httpbrowser=~/win/i) { $clientos='win'; }
1864: if ($httpbrowser=~/embed/i) { $clientos='pda'; }
1865: return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
1866: $clientunicode,$clientos,);
1867: }
1868:
1869: ###############################################################
1870: ## Authentication changing form generation subroutines ##
1871: ###############################################################
1872: ##
1873: ## All of the authform_xxxxxxx subroutines take their inputs in a
1874: ## hash, and have reasonable default values.
1875: ##
1876: ## formname = the name given in the <form> tag.
1877: #-------------------------------------------
1878:
1879: =pod
1880:
1881: =head1 Authentication Routines
1882:
1883: =over 4
1884:
1885: =item * &authform_xxxxxx()
1886:
1887: The authform_xxxxxx subroutines provide javascript and html forms which
1888: handle some of the conveniences required for authentication forms.
1889: This is not an optimal method, but it works.
1890:
1891: =over 4
1892:
1893: =item * authform_header
1894:
1895: =item * authform_authorwarning
1896:
1897: =item * authform_nochange
1898:
1899: =item * authform_kerberos
1900:
1901: =item * authform_internal
1902:
1903: =item * authform_filesystem
1904:
1905: =back
1906:
1907: See loncreateuser.pm for invocation and use examples.
1908:
1909: =cut
1910:
1911: #-------------------------------------------
1912: sub authform_header{
1913: my %in = (
1914: formname => 'cu',
1915: kerb_def_dom => '',
1916: @_,
1917: );
1918: $in{'formname'} = 'document.' . $in{'formname'};
1919: my $result='';
1920:
1921: #---------------------------------------------- Code for upper case translation
1922: my $Javascript_toUpperCase;
1923: unless ($in{kerb_def_dom}) {
1924: $Javascript_toUpperCase =<<"END";
1925: switch (choice) {
1926: case 'krb': currentform.elements[choicearg].value =
1927: currentform.elements[choicearg].value.toUpperCase();
1928: break;
1929: default:
1930: }
1931: END
1932: } else {
1933: $Javascript_toUpperCase = "";
1934: }
1935:
1936: my $radioval = "'nochange'";
1937: if (defined($in{'curr_authtype'})) {
1938: if ($in{'curr_authtype'} ne '') {
1939: $radioval = "'".$in{'curr_authtype'}."arg'";
1940: }
1941: }
1942: my $argfield = 'null';
1943: if (defined($in{'mode'})) {
1944: if ($in{'mode'} eq 'modifycourse') {
1945: if (defined($in{'curr_autharg'})) {
1946: if ($in{'curr_autharg'} ne '') {
1947: $argfield = "'$in{'curr_autharg'}'";
1948: }
1949: }
1950: }
1951: }
1952:
1953: $result.=<<"END";
1954: var current = new Object();
1955: current.radiovalue = $radioval;
1956: current.argfield = $argfield;
1957:
1958: function changed_radio(choice,currentform) {
1959: var choicearg = choice + 'arg';
1960: // If a radio button in changed, we need to change the argfield
1961: if (current.radiovalue != choice) {
1962: current.radiovalue = choice;
1963: if (current.argfield != null) {
1964: currentform.elements[current.argfield].value = '';
1965: }
1966: if (choice == 'nochange') {
1967: current.argfield = null;
1968: } else {
1969: current.argfield = choicearg;
1970: switch(choice) {
1971: case 'krb':
1972: currentform.elements[current.argfield].value =
1973: "$in{'kerb_def_dom'}";
1974: break;
1975: default:
1976: break;
1977: }
1978: }
1979: }
1980: return;
1981: }
1982:
1983: function changed_text(choice,currentform) {
1984: var choicearg = choice + 'arg';
1985: if (currentform.elements[choicearg].value !='') {
1986: $Javascript_toUpperCase
1987: // clear old field
1988: if ((current.argfield != choicearg) && (current.argfield != null)) {
1989: currentform.elements[current.argfield].value = '';
1990: }
1991: current.argfield = choicearg;
1992: }
1993: set_auth_radio_buttons(choice,currentform);
1994: return;
1995: }
1996:
1997: function set_auth_radio_buttons(newvalue,currentform) {
1998: var i=0;
1999: while (i < currentform.login.length) {
2000: if (currentform.login[i].value == newvalue) { break; }
2001: i++;
2002: }
2003: if (i == currentform.login.length) {
2004: return;
2005: }
2006: current.radiovalue = newvalue;
2007: currentform.login[i].checked = true;
2008: return;
2009: }
2010: END
2011: return $result;
2012: }
2013:
2014: sub authform_authorwarning{
2015: my $result='';
2016: $result='<i>'.
2017: &mt('As a general rule, only authors or co-authors should be '.
2018: 'filesystem authenticated '.
2019: '(which allows access to the server filesystem).')."</i>\n";
2020: return $result;
2021: }
2022:
2023: sub authform_nochange{
2024: my %in = (
2025: formname => 'document.cu',
2026: kerb_def_dom => 'MSU.EDU',
2027: @_,
2028: );
2029: my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
2030: my $result;
2031: if (keys(%can_assign) == 0) {
2032: $result = &mt('Under you current role you are not permitted to change login settings for this user');
2033: } else {
2034: $result = '<label>'.&mt('[_1] Do not change login data',
2035: '<input type="radio" name="login" value="nochange" '.
2036: 'checked="checked" onclick="'.
2037: "javascript:changed_radio('nochange',$in{'formname'});".'" />').
2038: '</label>';
2039: }
2040: return $result;
2041: }
2042:
2043: sub authform_kerberos {
2044: my %in = (
2045: formname => 'document.cu',
2046: kerb_def_dom => 'MSU.EDU',
2047: kerb_def_auth => 'krb4',
2048: @_,
2049: );
2050: my ($check4,$check5,$krbcheck,$krbarg,$krbver,$result,$authtype,
2051: $autharg,$jscall);
2052: my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
2053: if ($in{'kerb_def_auth'} eq 'krb5') {
2054: $check5 = ' checked="on"';
2055: } else {
2056: $check4 = ' checked="on"';
2057: }
2058: $krbarg = $in{'kerb_def_dom'};
2059: if (defined($in{'curr_authtype'})) {
2060: if ($in{'curr_authtype'} eq 'krb') {
2061: $krbcheck = ' checked="on"';
2062: if (defined($in{'mode'})) {
2063: if ($in{'mode'} eq 'modifyuser') {
2064: $krbcheck = '';
2065: }
2066: }
2067: if (defined($in{'curr_kerb_ver'})) {
2068: if ($in{'curr_krb_ver'} eq '5') {
2069: $check5 = ' checked="on"';
2070: $check4 = '';
2071: } else {
2072: $check4 = ' checked="on"';
2073: $check5 = '';
2074: }
2075: }
2076: if (defined($in{'curr_autharg'})) {
2077: $krbarg = $in{'curr_autharg'};
2078: }
2079: if (!$can_assign{'krb4'} && !$can_assign{'krb5'}) {
2080: if (defined($in{'curr_autharg'})) {
2081: $result =
2082: &mt('Currently Kerberos authenticated with domain [_1] Version [_2].',
2083: $in{'curr_autharg'},$krbver);
2084: } else {
2085: $result =
2086: &mt('Currently Kerberos authenticated, Version [_1].',$krbver);
2087: }
2088: return $result;
2089: }
2090: }
2091: } else {
2092: if ($authnum == 1) {
2093: $authtype = '<input type="hidden" name="login" value="krb">';
2094: }
2095: }
2096: if (!$can_assign{'krb4'} && !$can_assign{'krb5'}) {
2097: return;
2098: } elsif ($authtype eq '') {
2099: if (defined($in{'mode'})) {
2100: if ($in{'mode'} eq 'modifycourse') {
2101: if ($authnum == 1) {
2102: $authtype = '<input type="hidden" name="login" value="krb">';
2103: }
2104: }
2105: }
2106: }
2107: $jscall = "javascript:changed_radio('krb',$in{'formname'});";
2108: if ($authtype eq '') {
2109: $authtype = '<input type="radio" name="login" value="krb" '.
2110: 'onclick="'.$jscall.'" onchange="'.$jscall.'"'.
2111: $krbcheck.' />';
2112: }
2113: if (($can_assign{'krb4'} && $can_assign{'krb5'}) ||
2114: ($can_assign{'krb4'} && !$can_assign{'krb5'} &&
2115: $in{'curr_authtype'} eq 'krb5') ||
2116: (!$can_assign{'krb4'} && $can_assign{'krb5'} &&
2117: $in{'curr_authtype'} eq 'krb4')) {
2118: $result .= &mt
2119: ('[_1] Kerberos authenticated with domain [_2] '.
2120: '[_3] Version 4 [_4] Version 5 [_5]',
2121: '<label>'.$authtype,
2122: '</label><input type="text" size="10" name="krbarg" '.
2123: 'value="'.$krbarg.'" '.
2124: 'onchange="'.$jscall.'" />',
2125: '<label><input type="radio" name="krbver" value="4" '.$check4.' />',
2126: '</label><label><input type="radio" name="krbver" value="5" '.$check5.' />',
2127: '</label>');
2128: } elsif ($can_assign{'krb4'}) {
2129: $result .= &mt
2130: ('[_1] Kerberos authenticated with domain [_2] '.
2131: '[_3] Version 4 [_4]',
2132: '<label>'.$authtype,
2133: '</label><input type="text" size="10" name="krbarg" '.
2134: 'value="'.$krbarg.'" '.
2135: 'onchange="'.$jscall.'" />',
2136: '<label><input type="hidden" name="krbver" value="4" />',
2137: '</label>');
2138: } elsif ($can_assign{'krb5'}) {
2139: $result .= &mt
2140: ('[_1] Kerberos authenticated with domain [_2] '.
2141: '[_3] Version 5 [_4]',
2142: '<label>'.$authtype,
2143: '</label><input type="text" size="10" name="krbarg" '.
2144: 'value="'.$krbarg.'" '.
2145: 'onchange="'.$jscall.'" />',
2146: '<label><input type="hidden" name="krbver" value="5" />',
2147: '</label>');
2148: }
2149: return $result;
2150: }
2151:
2152: sub authform_internal{
2153: my %in = (
2154: formname => 'document.cu',
2155: kerb_def_dom => 'MSU.EDU',
2156: @_,
2157: );
2158: my ($intcheck,$intarg,$result,$authtype,$autharg,$jscall);
2159: my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
2160: if (defined($in{'curr_authtype'})) {
2161: if ($in{'curr_authtype'} eq 'int') {
2162: if ($can_assign{'int'}) {
2163: $intcheck = 'checked="on" ';
2164: if (defined($in{'mode'})) {
2165: if ($in{'mode'} eq 'modifyuser') {
2166: $intcheck = '';
2167: }
2168: }
2169: if (defined($in{'curr_autharg'})) {
2170: $intarg = $in{'curr_autharg'};
2171: }
2172: } else {
2173: $result = &mt('Currently internally authenticated.');
2174: return $result;
2175: }
2176: }
2177: } else {
2178: if ($authnum == 1) {
2179: $authtype = '<input type="hidden" name="login" value="int">';
2180: }
2181: }
2182: if (!$can_assign{'int'}) {
2183: return;
2184: } elsif ($authtype eq '') {
2185: if (defined($in{'mode'})) {
2186: if ($in{'mode'} eq 'modifycourse') {
2187: if ($authnum == 1) {
2188: $authtype = '<input type="hidden" name="login" value="int">';
2189: }
2190: }
2191: }
2192: }
2193: $jscall = "javascript:changed_radio('int',$in{'formname'});";
2194: if ($authtype eq '') {
2195: $authtype = '<input type="radio" name="login" value="int" '.$intcheck.
2196: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />';
2197: }
2198: $autharg = '<input type="password" size="10" name="intarg" value="'.
2199: $intarg.'" onchange="'.$jscall.'" />';
2200: $result = &mt
2201: ('[_1] Internally authenticated (with initial password [_2])',
2202: '<label>'.$authtype,'</label>'.$autharg);
2203: $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>';
2204: return $result;
2205: }
2206:
2207: sub authform_local{
2208: my %in = (
2209: formname => 'document.cu',
2210: kerb_def_dom => 'MSU.EDU',
2211: @_,
2212: );
2213: my ($loccheck,$locarg,$result,$authtype,$autharg,$jscall);
2214: my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
2215: if (defined($in{'curr_authtype'})) {
2216: if ($in{'curr_authtype'} eq 'loc') {
2217: if ($can_assign{'loc'}) {
2218: $loccheck = 'checked="on" ';
2219: if (defined($in{'mode'})) {
2220: if ($in{'mode'} eq 'modifyuser') {
2221: $loccheck = '';
2222: }
2223: }
2224: if (defined($in{'curr_autharg'})) {
2225: $locarg = $in{'curr_autharg'};
2226: }
2227: } else {
2228: $result = &mt('Currently using local (institutional) authentication.');
2229: return $result;
2230: }
2231: }
2232: } else {
2233: if ($authnum == 1) {
2234: $authtype = '<input type="hidden" name="login" value="loc">';
2235: }
2236: }
2237: if (!$can_assign{'loc'}) {
2238: return;
2239: } elsif ($authtype eq '') {
2240: if (defined($in{'mode'})) {
2241: if ($in{'mode'} eq 'modifycourse') {
2242: if ($authnum == 1) {
2243: $authtype = '<input type="hidden" name="login" value="loc">';
2244: }
2245: }
2246: }
2247: }
2248: $jscall = "javascript:changed_radio('loc',$in{'formname'});";
2249: if ($authtype eq '') {
2250: $authtype = '<input type="radio" name="login" value="loc" '.
2251: $loccheck.' onchange="'.$jscall.'" onclick="'.
2252: $jscall.'" />';
2253: }
2254: $autharg = '<input type="text" size="10" name="locarg" value="'.
2255: $locarg.'" onchange="'.$jscall.'" />';
2256: $result = &mt('[_1] Local Authentication with argument [_2]',
2257: '<label>'.$authtype,'</label>'.$autharg);
2258: return $result;
2259: }
2260:
2261: sub authform_filesystem{
2262: my %in = (
2263: formname => 'document.cu',
2264: kerb_def_dom => 'MSU.EDU',
2265: @_,
2266: );
2267: my ($fsyscheck,$result,$authtype,$autharg,$jscall);
2268: my ($authnum,%can_assign) = &get_assignable_auth($in{'domain'});
2269: if (defined($in{'curr_authtype'})) {
2270: if ($in{'curr_authtype'} eq 'fsys') {
2271: if ($can_assign{'fsys'}) {
2272: $fsyscheck = 'checked="on" ';
2273: if (defined($in{'mode'})) {
2274: if ($in{'mode'} eq 'modifyuser') {
2275: $fsyscheck = '';
2276: }
2277: }
2278: } else {
2279: $result = &mt('Currently Filesystem Authenticated.');
2280: return $result;
2281: }
2282: }
2283: } else {
2284: if ($authnum == 1) {
2285: $authtype = '<input type="hidden" name="login" value="fsys">';
2286: }
2287: }
2288: if (!$can_assign{'fsys'}) {
2289: return;
2290: } elsif ($authtype eq '') {
2291: if (defined($in{'mode'})) {
2292: if ($in{'mode'} eq 'modifycourse') {
2293: if ($authnum == 1) {
2294: $authtype = '<input type="hidden" name="login" value="fsys">';
2295: }
2296: }
2297: }
2298: }
2299: $jscall = "javascript:changed_radio('fsys',$in{'formname'});";
2300: if ($authtype eq '') {
2301: $authtype = '<input type="radio" name="login" value="fsys" '.
2302: $fsyscheck.' onchange="'.$jscall.'" onclick="'.
2303: $jscall.'" />';
2304: }
2305: $autharg = '<input type="text" size="10" name="fsysarg" value=""'.
2306: ' onchange="'.$jscall.'" />';
2307: $result = &mt
2308: ('[_1] Filesystem Authenticated (with initial password [_2])',
2309: '<label><input type="radio" name="login" value="fsys" '.
2310: $fsyscheck.'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
2311: '</label><input type="password" size="10" name="fsysarg" value="" '.
2312: 'onchange="'.$jscall.'" />');
2313: return $result;
2314: }
2315:
2316: sub get_assignable_auth {
2317: my ($dom) = @_;
2318: if ($dom eq '') {
2319: $dom = $env{'request.role.domain'};
2320: }
2321: my %can_assign = (
2322: krb4 => 1,
2323: krb5 => 1,
2324: int => 1,
2325: loc => 1,
2326: );
2327: my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$dom);
2328: if (ref($domconfig{'usercreation'}) eq 'HASH') {
2329: if (ref($domconfig{'usercreation'}{'authtypes'}) eq 'HASH') {
2330: my $authhash = $domconfig{'usercreation'}{'authtypes'};
2331: my $context;
2332: if ($env{'request.role'} =~ /^au/) {
2333: $context = 'author';
2334: } elsif ($env{'request.role'} =~ /^dc/) {
2335: $context = 'domain';
2336: } elsif ($env{'request.course.id'}) {
2337: $context = 'course';
2338: }
2339: if ($context) {
2340: if (ref($authhash->{$context}) eq 'HASH') {
2341: %can_assign = %{$authhash->{$context}};
2342: }
2343: }
2344: }
2345: }
2346: my $authnum = 0;
2347: foreach my $key (keys(%can_assign)) {
2348: if ($can_assign{$key}) {
2349: $authnum ++;
2350: }
2351: }
2352: if ($can_assign{'krb4'} && $can_assign{'krb5'}) {
2353: $authnum --;
2354: }
2355: return ($authnum,%can_assign);
2356: }
2357:
2358: ###############################################################
2359: ## Get Kerberos Defaults for Domain ##
2360: ###############################################################
2361: ##
2362: ## Returns default kerberos version and an associated argument
2363: ## as listed in file domain.tab. If not listed, provides
2364: ## appropriate default domain and kerberos version.
2365: ##
2366: #-------------------------------------------
2367:
2368: =pod
2369:
2370: =item * &get_kerberos_defaults()
2371:
2372: get_kerberos_defaults($target_domain) returns the default kerberos
2373: version and domain. If not found, it defaults to version 4 and the
2374: domain of the server.
2375:
2376: =over 4
2377:
2378: ($def_version, $def_krb_domain) = &get_kerberos_defaults($target_domain);
2379:
2380: =back
2381:
2382: =back
2383:
2384: =cut
2385:
2386: #-------------------------------------------
2387: sub get_kerberos_defaults {
2388: my $domain=shift;
2389: my ($krbdef,$krbdefdom);
2390: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
2391: if (($domdefaults{'auth_def'} =~/^krb(4|5)$/) && ($domdefaults{'auth_arg_def'} ne '')) {
2392: $krbdef = $domdefaults{'auth_def'};
2393: $krbdefdom = $domdefaults{'auth_arg_def'};
2394: } else {
2395: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
2396: my $krbdefdom=$1;
2397: $krbdefdom=~tr/a-z/A-Z/;
2398: $krbdef = "krb4";
2399: }
2400: return ($krbdef,$krbdefdom);
2401: }
2402:
2403:
2404: ###############################################################
2405: ## Thesaurus Functions ##
2406: ###############################################################
2407:
2408: =pod
2409:
2410: =head1 Thesaurus Functions
2411:
2412: =over 4
2413:
2414: =item * &initialize_keywords()
2415:
2416: Initializes the package variable %Keywords if it is empty. Uses the
2417: package variable $thesaurus_db_file.
2418:
2419: =cut
2420:
2421: ###################################################
2422:
2423: sub initialize_keywords {
2424: return 1 if (scalar keys(%Keywords));
2425: # If we are here, %Keywords is empty, so fill it up
2426: # Make sure the file we need exists...
2427: if (! -e $thesaurus_db_file) {
2428: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file".
2429: " failed because it does not exist");
2430: return 0;
2431: }
2432: # Set up the hash as a database
2433: my %thesaurus_db;
2434: if (! tie(%thesaurus_db,'GDBM_File',
2435: $thesaurus_db_file,&GDBM_READER(),0640)){
2436: &Apache::lonnet::logthis("Could not tie \%thesaurus_db to ".
2437: $thesaurus_db_file);
2438: return 0;
2439: }
2440: # Get the average number of appearances of a word.
2441: my $avecount = $thesaurus_db{'average.count'};
2442: # Put keywords (those that appear > average) into %Keywords
2443: while (my ($word,$data)=each (%thesaurus_db)) {
2444: my ($count,undef) = split /:/,$data;
2445: $Keywords{$word}++ if ($count > $avecount);
2446: }
2447: untie %thesaurus_db;
2448: # Remove special values from %Keywords.
2449: foreach my $value ('total.count','average.count') {
2450: delete($Keywords{$value}) if (exists($Keywords{$value}));
2451: }
2452: return 1;
2453: }
2454:
2455: ###################################################
2456:
2457: =pod
2458:
2459: =item * &keyword($word)
2460:
2461: Returns true if $word is a keyword. A keyword is a word that appears more
2462: than the average number of times in the thesaurus database. Calls
2463: &initialize_keywords
2464:
2465: =cut
2466:
2467: ###################################################
2468:
2469: sub keyword {
2470: return if (!&initialize_keywords());
2471: my $word=lc(shift());
2472: $word=~s/\W//g;
2473: return exists($Keywords{$word});
2474: }
2475:
2476: ###############################################################
2477:
2478: =pod
2479:
2480: =item * &get_related_words()
2481:
2482: Look up a word in the thesaurus. Takes a scalar argument and returns
2483: an array of words. If the keyword is not in the thesaurus, an empty array
2484: will be returned. The order of the words returned is determined by the
2485: database which holds them.
2486:
2487: Uses global $thesaurus_db_file.
2488:
2489: =cut
2490:
2491: ###############################################################
2492: sub get_related_words {
2493: my $keyword = shift;
2494: my %thesaurus_db;
2495: if (! -e $thesaurus_db_file) {
2496: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file ".
2497: "failed because the file does not exist");
2498: return ();
2499: }
2500: if (! tie(%thesaurus_db,'GDBM_File',
2501: $thesaurus_db_file,&GDBM_READER(),0640)){
2502: return ();
2503: }
2504: my @Words=();
2505: my $count=0;
2506: if (exists($thesaurus_db{$keyword})) {
2507: # The first element is the number of times
2508: # the word appears. We do not need it now.
2509: my (undef,@RelatedWords) = (split(/:/,$thesaurus_db{$keyword}));
2510: my (undef,$mostfrequentcount)=split(/\,/,$RelatedWords[0]);
2511: my $threshold=$mostfrequentcount/10;
2512: foreach my $possibleword (@RelatedWords) {
2513: my ($word,$wordcount)=split(/\,/,$possibleword);
2514: if ($wordcount>$threshold) {
2515: push(@Words,$word);
2516: $count++;
2517: if ($count>10) { last; }
2518: }
2519: }
2520: }
2521: untie %thesaurus_db;
2522: return @Words;
2523: }
2524:
2525: =pod
2526:
2527: =back
2528:
2529: =cut
2530:
2531: # -------------------------------------------------------------- Plaintext name
2532: =pod
2533:
2534: =head1 User Name Functions
2535:
2536: =over 4
2537:
2538: =item * &plainname($uname,$udom,$first)
2539:
2540: Takes a users logon name and returns it as a string in
2541: "first middle last generation" form
2542: if $first is set to 'lastname' then it returns it as
2543: 'lastname generation, firstname middlename' if their is a lastname
2544:
2545: =cut
2546:
2547:
2548: ###############################################################
2549: sub plainname {
2550: my ($uname,$udom,$first)=@_;
2551: return if (!defined($uname) || !defined($udom));
2552: my %names=&getnames($uname,$udom);
2553: my $name=&Apache::lonnet::format_name($names{'firstname'},
2554: $names{'middlename'},
2555: $names{'lastname'},
2556: $names{'generation'},$first);
2557: $name=~s/^\s+//;
2558: $name=~s/\s+$//;
2559: $name=~s/\s+/ /g;
2560: if ($name !~ /\S/) { $name=$uname.':'.$udom; }
2561: return $name;
2562: }
2563:
2564: # -------------------------------------------------------------------- Nickname
2565: =pod
2566:
2567: =item * &nickname($uname,$udom)
2568:
2569: Gets a users name and returns it as a string as
2570:
2571: ""nickname""
2572:
2573: if the user has a nickname or
2574:
2575: "first middle last generation"
2576:
2577: if the user does not
2578:
2579: =cut
2580:
2581: sub nickname {
2582: my ($uname,$udom)=@_;
2583: return if (!defined($uname) || !defined($udom));
2584: my %names=&getnames($uname,$udom);
2585: my $name=$names{'nickname'};
2586: if ($name) {
2587: $name='"'.$name.'"';
2588: } else {
2589: $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
2590: $names{'lastname'}.' '.$names{'generation'};
2591: $name=~s/\s+$//;
2592: $name=~s/\s+/ /g;
2593: }
2594: return $name;
2595: }
2596:
2597: sub getnames {
2598: my ($uname,$udom)=@_;
2599: return if (!defined($uname) || !defined($udom));
2600: if ($udom eq 'public' && $uname eq 'public') {
2601: return ('lastname' => &mt('Public'));
2602: }
2603: my $id=$uname.':'.$udom;
2604: my ($names,$cached)=&Apache::lonnet::is_cached_new('namescache',$id);
2605: if ($cached) {
2606: return %{$names};
2607: } else {
2608: my %loadnames=&Apache::lonnet::get('environment',
2609: ['firstname','middlename','lastname','generation','nickname'],
2610: $udom,$uname);
2611: &Apache::lonnet::do_cache_new('namescache',$id,\%loadnames);
2612: return %loadnames;
2613: }
2614: }
2615:
2616: # -------------------------------------------------------------------- getemails
2617:
2618: =pod
2619:
2620: =item * &getemails($uname,$udom)
2621:
2622: Gets a user's email information and returns it as a hash with keys:
2623: notification, critnotification, permanentemail
2624:
2625: For notification and critnotification, values are comma-separated lists
2626: of e-mail addresses; for permanentemail, value is a single e-mail address.
2627:
2628:
2629: =cut
2630:
2631:
2632: sub getemails {
2633: my ($uname,$udom)=@_;
2634: if ($udom eq 'public' && $uname eq 'public') {
2635: return;
2636: }
2637: if (!$udom) { $udom=$env{'user.domain'}; }
2638: if (!$uname) { $uname=$env{'user.name'}; }
2639: my $id=$uname.':'.$udom;
2640: my ($names,$cached)=&Apache::lonnet::is_cached_new('emailscache',$id);
2641: if ($cached) {
2642: return %{$names};
2643: } else {
2644: my %loadnames=&Apache::lonnet::get('environment',
2645: ['notification','critnotification',
2646: 'permanentemail'],
2647: $udom,$uname);
2648: &Apache::lonnet::do_cache_new('emailscache',$id,\%loadnames);
2649: return %loadnames;
2650: }
2651: }
2652:
2653: sub flush_email_cache {
2654: my ($uname,$udom)=@_;
2655: if (!$udom) { $udom =$env{'user.domain'}; }
2656: if (!$uname) { $uname=$env{'user.name'}; }
2657: return if ($udom eq 'public' && $uname eq 'public');
2658: my $id=$uname.':'.$udom;
2659: &Apache::lonnet::devalidate_cache_new('emailscache',$id);
2660: }
2661:
2662: # ------------------------------------------------------------------ Screenname
2663:
2664: =pod
2665:
2666: =item * &screenname($uname,$udom)
2667:
2668: Gets a users screenname and returns it as a string
2669:
2670: =cut
2671:
2672: sub screenname {
2673: my ($uname,$udom)=@_;
2674: if ($uname eq $env{'user.name'} &&
2675: $udom eq $env{'user.domain'}) {return $env{'environment.screenname'};}
2676: my %names=&Apache::lonnet::get('environment',['screenname'],$udom,$uname);
2677: return $names{'screenname'};
2678: }
2679:
2680:
2681: # ------------------------------------------------------------- Message Wrapper
2682:
2683: sub messagewrapper {
2684: my ($link,$username,$domain,$subject,$text)=@_;
2685: return
2686: '<a href="/adm/email?compose=individual&'.
2687: 'recname='.$username.'&recdom='.$domain.
2688: '&subject='.&escape($subject).'&text='.&escape($text).'" '.
2689: 'title="'.&mt('Send message').'">'.$link.'</a>';
2690: }
2691: # --------------------------------------------------------------- Notes Wrapper
2692:
2693: sub noteswrapper {
2694: my ($link,$un,$do)=@_;
2695: return
2696: "<a href='/adm/email?recordftf=retrieve&recname=$un&recdom=$do'>$link</a>";
2697: }
2698: # ------------------------------------------------------------- Aboutme Wrapper
2699:
2700: sub aboutmewrapper {
2701: my ($link,$username,$domain,$target)=@_;
2702: if (!defined($username) && !defined($domain)) {
2703: return;
2704: }
2705: return '<a href="/adm/'.$domain.'/'.$username.'/aboutme"'.
2706: ($target?' target="$target"':'').' title="'.&mt("View this user's personal page").'">'.$link.'</a>';
2707: }
2708:
2709: # ------------------------------------------------------------ Syllabus Wrapper
2710:
2711:
2712: sub syllabuswrapper {
2713: my ($linktext,$coursedir,$domain,$fontcolor)=@_;
2714: if ($fontcolor) {
2715: $linktext='<font color="'.$fontcolor.'">'.$linktext.'</font>';
2716: }
2717: return qq{<a href="/public/$domain/$coursedir/syllabus">$linktext</a>};
2718: }
2719:
2720: sub track_student_link {
2721: my ($linktext,$sname,$sdom,$target,$start) = @_;
2722: my $link ="/adm/trackstudent?";
2723: my $title = 'View recent activity';
2724: if (defined($sname) && $sname !~ /^\s*$/ &&
2725: defined($sdom) && $sdom !~ /^\s*$/) {
2726: $link .= "selected_student=$sname:$sdom";
2727: $title .= ' of this student';
2728: }
2729: if (defined($target) && $target !~ /^\s*$/) {
2730: $target = qq{target="$target"};
2731: } else {
2732: $target = '';
2733: }
2734: if ($start) { $link.='&start='.$start; }
2735: $title = &mt($title);
2736: $linktext = &mt($linktext);
2737: return qq{<a href="$link" title="$title" $target>$linktext</a>}.
2738: &help_open_topic('View_recent_activity');
2739: }
2740:
2741: # ===================================================== Display a student photo
2742:
2743:
2744: sub student_image_tag {
2745: my ($domain,$user)=@_;
2746: my $imgsrc=&Apache::lonnet::studentphoto($domain,$user,'jpg');
2747: if (($imgsrc) && ($imgsrc ne '/adm/lonKaputt/lonlogo_broken.gif')) {
2748: return '<img src="'.$imgsrc.'" align="right" />';
2749: } else {
2750: return '';
2751: }
2752: }
2753:
2754: =pod
2755:
2756: =back
2757:
2758: =head1 Access .tab File Data
2759:
2760: =over 4
2761:
2762: =item * &languageids()
2763:
2764: returns list of all language ids
2765:
2766: =cut
2767:
2768: sub languageids {
2769: return sort(keys(%language));
2770: }
2771:
2772: =pod
2773:
2774: =item * &languagedescription()
2775:
2776: returns description of a specified language id
2777:
2778: =cut
2779:
2780: sub languagedescription {
2781: my $code=shift;
2782: return ($supported_language{$code}?'* ':'').
2783: $language{$code}.
2784: ($supported_language{$code}?' ('.&mt('interface available').')':'');
2785: }
2786:
2787: sub plainlanguagedescription {
2788: my $code=shift;
2789: return $language{$code};
2790: }
2791:
2792: sub supportedlanguagecode {
2793: my $code=shift;
2794: return $supported_language{$code};
2795: }
2796:
2797: =pod
2798:
2799: =item * ©rightids()
2800:
2801: returns list of all copyrights
2802:
2803: =cut
2804:
2805: sub copyrightids {
2806: return sort(keys(%cprtag));
2807: }
2808:
2809: =pod
2810:
2811: =item * ©rightdescription()
2812:
2813: returns description of a specified copyright id
2814:
2815: =cut
2816:
2817: sub copyrightdescription {
2818: return &mt($cprtag{shift(@_)});
2819: }
2820:
2821: =pod
2822:
2823: =item * &source_copyrightids()
2824:
2825: returns list of all source copyrights
2826:
2827: =cut
2828:
2829: sub source_copyrightids {
2830: return sort(keys(%scprtag));
2831: }
2832:
2833: =pod
2834:
2835: =item * &source_copyrightdescription()
2836:
2837: returns description of a specified source copyright id
2838:
2839: =cut
2840:
2841: sub source_copyrightdescription {
2842: return &mt($scprtag{shift(@_)});
2843: }
2844:
2845: =pod
2846:
2847: =item * &filecategories()
2848:
2849: returns list of all file categories
2850:
2851: =cut
2852:
2853: sub filecategories {
2854: return sort(keys(%category_extensions));
2855: }
2856:
2857: =pod
2858:
2859: =item * &filecategorytypes()
2860:
2861: returns list of file types belonging to a given file
2862: category
2863:
2864: =cut
2865:
2866: sub filecategorytypes {
2867: my ($cat) = @_;
2868: return @{$category_extensions{lc($cat)}};
2869: }
2870:
2871: =pod
2872:
2873: =item * &fileembstyle()
2874:
2875: returns embedding style for a specified file type
2876:
2877: =cut
2878:
2879: sub fileembstyle {
2880: return $fe{lc(shift(@_))};
2881: }
2882:
2883: sub filemimetype {
2884: return $fm{lc(shift(@_))};
2885: }
2886:
2887:
2888: sub filecategoryselect {
2889: my ($name,$value)=@_;
2890: return &select_form($value,$name,
2891: '' => &mt('Any category'),
2892: map { $_,$_ } sort(keys(%category_extensions)));
2893: }
2894:
2895: =pod
2896:
2897: =item * &filedescription()
2898:
2899: returns description for a specified file type
2900:
2901: =cut
2902:
2903: sub filedescription {
2904: my $file_description = $fd{lc(shift())};
2905: $file_description =~ s:([\[\]]):~$1:g;
2906: return &mt($file_description);
2907: }
2908:
2909: =pod
2910:
2911: =item * &filedescriptionex()
2912:
2913: returns description for a specified file type with
2914: extra formatting
2915:
2916: =cut
2917:
2918: sub filedescriptionex {
2919: my $ex=shift;
2920: my $file_description = $fd{lc($ex)};
2921: $file_description =~ s:([\[\]]):~$1:g;
2922: return '.'.$ex.' '.&mt($file_description);
2923: }
2924:
2925: # End of .tab access
2926: =pod
2927:
2928: =back
2929:
2930: =cut
2931:
2932: # ------------------------------------------------------------------ File Types
2933: sub fileextensions {
2934: return sort(keys(%fe));
2935: }
2936:
2937: # ----------------------------------------------------------- Display Languages
2938: # returns a hash with all desired display languages
2939: #
2940:
2941: sub display_languages {
2942: my %languages=();
2943: foreach my $lang (&preferred_languages()) {
2944: $languages{$lang}=1;
2945: }
2946: &get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']);
2947: if ($env{'form.displaylanguage'}) {
2948: foreach my $lang (split(/\s*(\,|\;|\:)\s*/,$env{'form.displaylanguage'})) {
2949: $languages{$lang}=1;
2950: }
2951: }
2952: return %languages;
2953: }
2954:
2955: sub preferred_languages {
2956: my @languages=();
2957: if (($env{'request.role.adv'}) && ($env{'form.languages'})) {
2958: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$env{'form.languages'}));
2959: }
2960: if ($env{'course.'.$env{'request.course.id'}.'.languages'}) {
2961: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,
2962: $env{'course.'.$env{'request.course.id'}.'.languages'}));
2963: }
2964:
2965: if ($env{'environment.languages'}) {
2966: @languages=(@languages,
2967: split(/\s*(\,|\;|\:)\s*/,$env{'environment.languages'}));
2968: }
2969: my $browser=$ENV{'HTTP_ACCEPT_LANGUAGE'};
2970: if ($browser) {
2971: my @browser =
2972: map { (split(/\s*;\s*/,$_))[0] } (split(/\s*,\s*/,$browser));
2973: push(@languages,@browser);
2974: }
2975:
2976: foreach my $domtype ($env{'user.domain'},$env{'request.role.domain'},
2977: $Apache::lonnet::perlvar{'lonDefDomain'}) {
2978: if ($domtype ne '') {
2979: my %domdefs = &Apache::lonnet::get_domain_defaults($domtype);
2980: if ($domdefs{'lang_def'} ne '') {
2981: push(@languages,$domdefs{'lang_def'});
2982: }
2983: }
2984: }
2985: # turn "en-ca" into "en-ca,en"
2986: my @genlanguages;
2987: foreach my $lang (@languages) {
2988: unless ($lang=~/\w/) { next; }
2989: push(@genlanguages,$lang);
2990: if ($lang=~/(\-|\_)/) {
2991: push(@genlanguages,(split(/(\-|\_)/,$lang))[0]);
2992: }
2993: }
2994: #uniqueify the languages list
2995: my %count;
2996: @genlanguages = map { $count{$_}++ == 0 ? $_ : () } @genlanguages;
2997: return @genlanguages;
2998: }
2999:
3000: sub languages {
3001: my ($possible_langs) = @_;
3002: my @preferred_langs = &preferred_languages();
3003: if (!ref($possible_langs)) {
3004: if( wantarray ) {
3005: return @preferred_langs;
3006: } else {
3007: return $preferred_langs[0];
3008: }
3009: }
3010: my %possibilities = map { $_ => 1 } (@$possible_langs);
3011: my @preferred_possibilities;
3012: foreach my $preferred_lang (@preferred_langs) {
3013: if (exists($possibilities{$preferred_lang})) {
3014: push(@preferred_possibilities, $preferred_lang);
3015: }
3016: }
3017: if( wantarray ) {
3018: return @preferred_possibilities;
3019: }
3020: return $preferred_possibilities[0];
3021: }
3022:
3023: ###############################################################
3024: ## Student Answer Attempts ##
3025: ###############################################################
3026:
3027: =pod
3028:
3029: =head1 Alternate Problem Views
3030:
3031: =over 4
3032:
3033: =item * &get_previous_attempt($symb, $username, $domain, $course,
3034: $getattempt, $regexp, $gradesub)
3035:
3036: Return string with previous attempt on problem. Arguments:
3037:
3038: =over 4
3039:
3040: =item * $symb: Problem, including path
3041:
3042: =item * $username: username of the desired student
3043:
3044: =item * $domain: domain of the desired student
3045:
3046: =item * $course: Course ID
3047:
3048: =item * $getattempt: Leave blank for all attempts, otherwise put
3049: something
3050:
3051: =item * $regexp: if string matches this regexp, the string will be
3052: sent to $gradesub
3053:
3054: =item * $gradesub: routine that processes the string if it matches $regexp
3055:
3056: =back
3057:
3058: The output string is a table containing all desired attempts, if any.
3059:
3060: =cut
3061:
3062: sub get_previous_attempt {
3063: my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub)=@_;
3064: my $prevattempts='';
3065: no strict 'refs';
3066: if ($symb) {
3067: my (%returnhash)=
3068: &Apache::lonnet::restore($symb,$course,$domain,$username);
3069: if ($returnhash{'version'}) {
3070: my %lasthash=();
3071: my $version;
3072: for ($version=1;$version<=$returnhash{'version'};$version++) {
3073: foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) {
3074: $lasthash{$key}=$returnhash{$version.':'.$key};
3075: }
3076: }
3077: $prevattempts=&start_data_table().&start_data_table_header_row();
3078: $prevattempts.='<th>'.&mt('History').'</th>';
3079: foreach my $key (sort(keys(%lasthash))) {
3080: my ($ign,@parts) = split(/\./,$key);
3081: if ($#parts > 0) {
3082: my $data=$parts[-1];
3083: pop(@parts);
3084: $prevattempts.='<th>'.&mt('Part ').join('.',@parts).'<br />'.$data.' </th>';
3085: } else {
3086: if ($#parts == 0) {
3087: $prevattempts.='<th>'.$parts[0].'</th>';
3088: } else {
3089: $prevattempts.='<th>'.$ign.'</th>';
3090: }
3091: }
3092: }
3093: $prevattempts.=&end_data_table_header_row();
3094: if ($getattempt eq '') {
3095: for ($version=1;$version<=$returnhash{'version'};$version++) {
3096: $prevattempts.=&start_data_table_row().
3097: '<td>'.&mt('Transaction [_1]',$version).'</td>';
3098: foreach my $key (sort(keys(%lasthash))) {
3099: my $value = &format_previous_attempt_value($key,
3100: $returnhash{$version.':'.$key});
3101: $prevattempts.='<td>'.$value.' </td>';
3102: }
3103: $prevattempts.=&end_data_table_row();
3104: }
3105: }
3106: $prevattempts.=&start_data_table_row().'<td>'.&mt('Current').'</td>';
3107: foreach my $key (sort(keys(%lasthash))) {
3108: my $value = &format_previous_attempt_value($key,$lasthash{$key});
3109: if ($key =~/$regexp$/ && (defined &$gradesub)) {$value = &$gradesub($value)}
3110: $prevattempts.='<td>'.$value.' </td>';
3111: }
3112: $prevattempts.= &end_data_table_row().&end_data_table();
3113: } else {
3114: $prevattempts=
3115: &start_data_table().&start_data_table_row().
3116: '<td>'.&mt('Nothing submitted - no attempts.').'</td>'.
3117: &end_data_table_row().&end_data_table();
3118: }
3119: } else {
3120: $prevattempts=
3121: &start_data_table().&start_data_table_row().
3122: '<td>'.&mt('No data.').'</td>'.
3123: &end_data_table_row().&end_data_table();
3124: }
3125: }
3126:
3127: sub format_previous_attempt_value {
3128: my ($key,$value) = @_;
3129: if ($key =~ /timestamp/) {
3130: $value = &Apache::lonlocal::locallocaltime($value);
3131: } elsif (ref($value) eq 'ARRAY') {
3132: $value = '('.join(', ', @{ $value }).')';
3133: } else {
3134: $value = &unescape($value);
3135: }
3136: return $value;
3137: }
3138:
3139:
3140: sub relative_to_absolute {
3141: my ($url,$output)=@_;
3142: my $parser=HTML::TokeParser->new(\$output);
3143: my $token;
3144: my $thisdir=$url;
3145: my @rlinks=();
3146: while ($token=$parser->get_token) {
3147: if ($token->[0] eq 'S') {
3148: if ($token->[1] eq 'a') {
3149: if ($token->[2]->{'href'}) {
3150: $rlinks[$#rlinks+1]=$token->[2]->{'href'};
3151: }
3152: } elsif ($token->[1] eq 'img' || $token->[1] eq 'embed' ) {
3153: $rlinks[$#rlinks+1]=$token->[2]->{'src'};
3154: } elsif ($token->[1] eq 'base') {
3155: $thisdir=$token->[2]->{'href'};
3156: }
3157: }
3158: }
3159: $thisdir=~s-/[^/]*$--;
3160: foreach my $link (@rlinks) {
3161: unless (($link=~/^http:\/\//i) ||
3162: ($link=~/^\//) ||
3163: ($link=~/^javascript:/i) ||
3164: ($link=~/^mailto:/i) ||
3165: ($link=~/^\#/)) {
3166: my $newlocation=&Apache::lonnet::hreflocation($thisdir,$link);
3167: $output=~s/(\"|\'|\=\s*)\Q$link\E(\"|\'|\s|\>)/$1$newlocation$2/;
3168: }
3169: }
3170: # -------------------------------------------------- Deal with Applet codebases
3171: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
3172: return $output;
3173: }
3174:
3175: =pod
3176:
3177: =item * &get_student_view()
3178:
3179: show a snapshot of what student was looking at
3180:
3181: =cut
3182:
3183: sub get_student_view {
3184: my ($symb,$username,$domain,$courseid,$target,$moreenv) = @_;
3185: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
3186: my (%form);
3187: my @elements=('symb','courseid','domain','username');
3188: foreach my $element (@elements) {
3189: $form{'grade_'.$element}=eval '$'.$element #'
3190: }
3191: if (defined($moreenv)) {
3192: %form=(%form,%{$moreenv});
3193: }
3194: if (defined($target)) { $form{'grade_target'} = $target; }
3195: $feedurl=&Apache::lonnet::clutter($feedurl);
3196: my ($userview,$response)=&Apache::lonnet::ssi_body($feedurl,%form);
3197: $userview=~s/\<body[^\>]*\>//gi;
3198: $userview=~s/\<\/body\>//gi;
3199: $userview=~s/\<html\>//gi;
3200: $userview=~s/\<\/html\>//gi;
3201: $userview=~s/\<head\>//gi;
3202: $userview=~s/\<\/head\>//gi;
3203: $userview=~s/action\s*\=/would_be_action\=/gi;
3204: $userview=&relative_to_absolute($feedurl,$userview);
3205: if (wantarray) {
3206: return ($userview,$response);
3207: } else {
3208: return $userview;
3209: }
3210: }
3211:
3212: sub get_student_view_with_retries {
3213: my ($symb,$retries,$username,$domain,$courseid,$target,$moreenv) = @_;
3214:
3215: my $ok = 0; # True if we got a good response.
3216: my $content;
3217: my $response;
3218:
3219: # Try to get the student_view done. within the retries count:
3220:
3221: do {
3222: ($content, $response) = &get_student_view($symb,$username,$domain,$courseid,$target,$moreenv);
3223: $ok = $response->is_success;
3224: if (!$ok) {
3225: &Apache::lonnet::logthis("Failed get_student_view_with_retries on $symb: ".$response->is_success.', '.$response->code.', '.$response->message);
3226: }
3227: $retries--;
3228: } while (!$ok && ($retries > 0));
3229:
3230: if (!$ok) {
3231: $content = ''; # On error return an empty content.
3232: }
3233: if (wantarray) {
3234: return ($content, $response);
3235: } else {
3236: return $content;
3237: }
3238: }
3239:
3240: =pod
3241:
3242: =item * &get_student_answers()
3243:
3244: show a snapshot of how student was answering problem
3245:
3246: =cut
3247:
3248: sub get_student_answers {
3249: my ($symb,$username,$domain,$courseid,%form) = @_;
3250: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
3251: my (%moreenv);
3252: my @elements=('symb','courseid','domain','username');
3253: foreach my $element (@elements) {
3254: $moreenv{'grade_'.$element}=eval '$'.$element #'
3255: }
3256: $moreenv{'grade_target'}='answer';
3257: %moreenv=(%form,%moreenv);
3258: $feedurl = &Apache::lonnet::clutter($feedurl);
3259: my $userview=&Apache::lonnet::ssi($feedurl,%moreenv);
3260: return $userview;
3261: }
3262:
3263: =pod
3264:
3265: =item * &submlink()
3266:
3267: Inputs: $text $uname $udom $symb $target
3268:
3269: Returns: A link to grades.pm such as to see the SUBM view of a student
3270:
3271: =cut
3272:
3273: ###############################################
3274: sub submlink {
3275: my ($text,$uname,$udom,$symb,$target)=@_;
3276: if (!($uname && $udom)) {
3277: (my $cursymb, my $courseid,$udom,$uname)=
3278: &Apache::lonnet::whichuser($symb);
3279: if (!$symb) { $symb=$cursymb; }
3280: }
3281: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
3282: $symb=&escape($symb);
3283: if ($target) { $target="target=\"$target\""; }
3284: return '<a href="/adm/grades?&command=submission&'.
3285: 'symb='.$symb.'&student='.$uname.
3286: '&userdom='.$udom.'" '.$target.'>'.$text.'</a>';
3287: }
3288: ##############################################
3289:
3290: =pod
3291:
3292: =item * &pgrdlink()
3293:
3294: Inputs: $text $uname $udom $symb $target
3295:
3296: Returns: A link to grades.pm such as to see the PGRD view of a student
3297:
3298: =cut
3299:
3300: ###############################################
3301: sub pgrdlink {
3302: my $link=&submlink(@_);
3303: $link=~s/(&command=submission)/$1&showgrading=yes/;
3304: return $link;
3305: }
3306: ##############################################
3307:
3308: =pod
3309:
3310: =item * &pprmlink()
3311:
3312: Inputs: $text $uname $udom $symb $target
3313:
3314: Returns: A link to parmset.pm such as to see the PPRM view of a
3315: student and a specific resource
3316:
3317: =cut
3318:
3319: ###############################################
3320: sub pprmlink {
3321: my ($text,$uname,$udom,$symb,$target)=@_;
3322: if (!($uname && $udom)) {
3323: (my $cursymb, my $courseid,$udom,$uname)=
3324: &Apache::lonnet::whichuser($symb);
3325: if (!$symb) { $symb=$cursymb; }
3326: }
3327: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
3328: $symb=&escape($symb);
3329: if ($target) { $target="target=\"$target\""; }
3330: return '<a href="/adm/parmset?command=set&'.
3331: 'symb='.$symb.'&uname='.$uname.
3332: '&udom='.$udom.'" '.$target.'>'.$text.'</a>';
3333: }
3334: ##############################################
3335:
3336: =pod
3337:
3338: =back
3339:
3340: =cut
3341:
3342: ###############################################
3343:
3344:
3345: sub timehash {
3346: my @ltime=localtime(shift);
3347: return ( 'seconds' => $ltime[0],
3348: 'minutes' => $ltime[1],
3349: 'hours' => $ltime[2],
3350: 'day' => $ltime[3],
3351: 'month' => $ltime[4]+1,
3352: 'year' => $ltime[5]+1900,
3353: 'weekday' => $ltime[6],
3354: 'dayyear' => $ltime[7]+1,
3355: 'dlsav' => $ltime[8] );
3356: }
3357:
3358: sub utc_string {
3359: my ($date)=@_;
3360: return strftime("%Y%m%dT%H%M%SZ",gmtime($date));
3361: }
3362:
3363: sub maketime {
3364: my %th=@_;
3365: return POSIX::mktime(
3366: ($th{'seconds'},$th{'minutes'},$th{'hours'},
3367: $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,-1));
3368: }
3369:
3370: #########################################
3371:
3372: sub findallcourses {
3373: my ($roles,$uname,$udom) = @_;
3374: my %roles;
3375: if (ref($roles)) { %roles = map { $_ => 1 } @{$roles}; }
3376: my %courses;
3377: my $now=time;
3378: if (!defined($uname)) {
3379: $uname = $env{'user.name'};
3380: }
3381: if (!defined($udom)) {
3382: $udom = $env{'user.domain'};
3383: }
3384: if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
3385: my %roleshash = &Apache::lonnet::dump('roles',$udom,$uname);
3386: if (!%roles) {
3387: %roles = (
3388: cc => 1,
3389: in => 1,
3390: ep => 1,
3391: ta => 1,
3392: cr => 1,
3393: st => 1,
3394: );
3395: }
3396: foreach my $entry (keys(%roleshash)) {
3397: my ($trole,$tend,$tstart) = split(/_/,$roleshash{$entry});
3398: if ($trole =~ /^cr/) {
3399: next if (!exists($roles{$trole}) && !exists($roles{'cr'}));
3400: } else {
3401: next if (!exists($roles{$trole}));
3402: }
3403: if ($tend) {
3404: next if ($tend < $now);
3405: }
3406: if ($tstart) {
3407: next if ($tstart > $now);
3408: }
3409: my ($cdom,$cnum,$sec,$cnumpart,$secpart,$role,$realsec);
3410: (undef,$cdom,$cnumpart,$secpart) = split(/\//,$entry);
3411: if ($secpart eq '') {
3412: ($cnum,$role) = split(/_/,$cnumpart);
3413: $sec = 'none';
3414: $realsec = '';
3415: } else {
3416: $cnum = $cnumpart;
3417: ($sec,$role) = split(/_/,$secpart);
3418: $realsec = $sec;
3419: }
3420: $courses{$cdom.'_'.$cnum}{$sec} = $trole.'/'.$cdom.'/'.$cnum.'/'.$realsec;
3421: }
3422: } else {
3423: foreach my $key (keys(%env)) {
3424: if ( $key=~m{^user\.role\.(\w+)\./($match_domain)/($match_courseid)/?(\w*)$} ||
3425: $key=~m{^user\.role\.(cr/$match_domain/$match_username/\w+)\./($match_domain)/($match_courseid)/?(\w*)$}) {
3426: my ($role,$cdom,$cnum,$sec) = ($1,$2,$3,$4);
3427: next if ($role eq 'ca' || $role eq 'aa');
3428: next if (%roles && !exists($roles{$role}));
3429: my ($starttime,$endtime)=split(/\./,$env{$key});
3430: my $active=1;
3431: if ($starttime) {
3432: if ($now<$starttime) { $active=0; }
3433: }
3434: if ($endtime) {
3435: if ($now>$endtime) { $active=0; }
3436: }
3437: if ($active) {
3438: if ($sec eq '') {
3439: $sec = 'none';
3440: }
3441: $courses{$cdom.'_'.$cnum}{$sec} =
3442: $role.'/'.$cdom.'/'.$cnum.'/'.$sec;
3443: }
3444: }
3445: }
3446: }
3447: return %courses;
3448: }
3449:
3450: ###############################################
3451:
3452: sub blockcheck {
3453: my ($setters,$activity,$uname,$udom) = @_;
3454:
3455: if (!defined($udom)) {
3456: $udom = $env{'user.domain'};
3457: }
3458: if (!defined($uname)) {
3459: $uname = $env{'user.name'};
3460: }
3461:
3462: # If uname and udom are for a course, check for blocks in the course.
3463:
3464: if (&Apache::lonnet::is_course($udom,$uname)) {
3465: my %records = &Apache::lonnet::dump('comm_block',$udom,$uname);
3466: my ($startblock,$endblock)=&get_blocks($setters,$activity,$udom,$uname);
3467: return ($startblock,$endblock);
3468: }
3469:
3470: my $startblock = 0;
3471: my $endblock = 0;
3472: my %live_courses = &findallcourses(undef,$uname,$udom);
3473:
3474: # If uname is for a user, and activity is course-specific, i.e.,
3475: # boards, chat or groups, check for blocking in current course only.
3476:
3477: if (($activity eq 'boards' || $activity eq 'chat' ||
3478: $activity eq 'groups') && ($env{'request.course.id'})) {
3479: foreach my $key (keys(%live_courses)) {
3480: if ($key ne $env{'request.course.id'}) {
3481: delete($live_courses{$key});
3482: }
3483: }
3484: }
3485:
3486: my $otheruser = 0;
3487: my %own_courses;
3488: if ((($uname ne $env{'user.name'})) || ($udom ne $env{'user.domain'})) {
3489: # Resource belongs to user other than current user.
3490: $otheruser = 1;
3491: # Gather courses for current user
3492: %own_courses =
3493: &findallcourses(undef,$env{'user.name'},$env{'user.domain'});
3494: }
3495:
3496: # Gather active course roles - course coordinator, instructor,
3497: # exam proctor, ta, student, or custom role.
3498:
3499: foreach my $course (keys(%live_courses)) {
3500: my ($cdom,$cnum);
3501: if ((defined($env{'course.'.$course.'.domain'})) && (defined($env{'course.'.$course.'.num'}))) {
3502: $cdom = $env{'course.'.$course.'.domain'};
3503: $cnum = $env{'course.'.$course.'.num'};
3504: } else {
3505: ($cdom,$cnum) = split(/_/,$course);
3506: }
3507: my $no_ownblock = 0;
3508: my $no_userblock = 0;
3509: if ($otheruser && $activity ne 'com') {
3510: # Check if current user has 'evb' priv for this
3511: if (defined($own_courses{$course})) {
3512: foreach my $sec (keys(%{$own_courses{$course}})) {
3513: my $checkrole = 'cm./'.$cdom.'/'.$cnum;
3514: if ($sec ne 'none') {
3515: $checkrole .= '/'.$sec;
3516: }
3517: if (&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) {
3518: $no_ownblock = 1;
3519: last;
3520: }
3521: }
3522: }
3523: # if they have 'evb' priv and are currently not playing student
3524: next if (($no_ownblock) &&
3525: ($env{'request.role'} !~ m{^st\./$cdom/$cnum}));
3526: }
3527: foreach my $sec (keys(%{$live_courses{$course}})) {
3528: my $checkrole = 'cm./'.$cdom.'/'.$cnum;
3529: if ($sec ne 'none') {
3530: $checkrole .= '/'.$sec;
3531: }
3532: if ($otheruser) {
3533: # Resource belongs to user other than current user.
3534: # Assemble privs for that user, and check for 'evb' priv.
3535: my ($trole,$tdom,$tnum,$tsec);
3536: my $entry = $live_courses{$course}{$sec};
3537: if ($entry =~ /^cr/) {
3538: ($trole,$tdom,$tnum,$tsec) =
3539: ($entry =~ m|^(cr/$match_domain/$match_username/\w+)\./($match_domain)/($match_username)/?(\w*)$|);
3540: } else {
3541: ($trole,$tdom,$tnum,$tsec) = split(/\//,$entry);
3542: }
3543: my ($spec,$area,$trest,%allroles,%userroles);
3544: $area = '/'.$tdom.'/'.$tnum;
3545: $trest = $tnum;
3546: if ($tsec ne '') {
3547: $area .= '/'.$tsec;
3548: $trest .= '/'.$tsec;
3549: }
3550: $spec = $trole.'.'.$area;
3551: if ($trole =~ /^cr/) {
3552: &Apache::lonnet::custom_roleprivs(\%allroles,$trole,
3553: $tdom,$spec,$trest,$area);
3554: } else {
3555: &Apache::lonnet::standard_roleprivs(\%allroles,$trole,
3556: $tdom,$spec,$trest,$area);
3557: }
3558: my ($author,$adv) = &Apache::lonnet::set_userprivs(\%userroles,\%allroles);
3559: if ($userroles{'user.priv.'.$checkrole} =~ /evb\&([^\:]*)/) {
3560: if ($1) {
3561: $no_userblock = 1;
3562: last;
3563: }
3564: }
3565: } else {
3566: # Resource belongs to current user
3567: # Check for 'evb' priv via lonnet::allowed().
3568: if (&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) {
3569: $no_ownblock = 1;
3570: last;
3571: }
3572: }
3573: }
3574: # if they have the evb priv and are currently not playing student
3575: next if (($no_ownblock) &&
3576: ($env{'request.role'} !~ m{^st\./\Q$cdom\E/\Q$cnum\E}));
3577: next if ($no_userblock);
3578:
3579: # Retrieve blocking times and identity of blocker for course
3580: # of specified user, unless user has 'evb' privilege.
3581:
3582: my ($start,$end)=&get_blocks($setters,$activity,$cdom,$cnum);
3583: if (($start != 0) &&
3584: (($startblock == 0) || ($startblock > $start))) {
3585: $startblock = $start;
3586: }
3587: if (($end != 0) &&
3588: (($endblock == 0) || ($endblock < $end))) {
3589: $endblock = $end;
3590: }
3591: }
3592: return ($startblock,$endblock);
3593: }
3594:
3595: sub get_blocks {
3596: my ($setters,$activity,$cdom,$cnum) = @_;
3597: my $startblock = 0;
3598: my $endblock = 0;
3599: my $course = $cdom.'_'.$cnum;
3600: $setters->{$course} = {};
3601: $setters->{$course}{'staff'} = [];
3602: $setters->{$course}{'times'} = [];
3603: my %records = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
3604: foreach my $record (keys(%records)) {
3605: my ($start,$end) = ($record =~ m/^(\d+)____(\d+)$/);
3606: if ($start <= time && $end >= time) {
3607: my ($staff_name,$staff_dom,$title,$blocks) =
3608: &parse_block_record($records{$record});
3609: if ($blocks->{$activity} eq 'on') {
3610: push(@{$$setters{$course}{'staff'}},[$staff_name,$staff_dom]);
3611: push(@{$$setters{$course}{'times'}}, [$start,$end]);
3612: if ( ($startblock == 0) || ($startblock > $start) ) {
3613: $startblock = $start;
3614: }
3615: if ( ($endblock == 0) || ($endblock < $end) ) {
3616: $endblock = $end;
3617: }
3618: }
3619: }
3620: }
3621: return ($startblock,$endblock);
3622: }
3623:
3624: sub parse_block_record {
3625: my ($record) = @_;
3626: my ($setuname,$setudom,$title,$blocks);
3627: if (ref($record) eq 'HASH') {
3628: ($setuname,$setudom) = split(/:/,$record->{'setter'});
3629: $title = &unescape($record->{'event'});
3630: $blocks = $record->{'blocks'};
3631: } else {
3632: my @data = split(/:/,$record,3);
3633: if (scalar(@data) eq 2) {
3634: $title = $data[1];
3635: ($setuname,$setudom) = split(/@/,$data[0]);
3636: } else {
3637: ($setuname,$setudom,$title) = @data;
3638: }
3639: $blocks = { 'com' => 'on' };
3640: }
3641: return ($setuname,$setudom,$title,$blocks);
3642: }
3643:
3644: sub build_block_table {
3645: my ($startblock,$endblock,$setters) = @_;
3646: my %lt = &Apache::lonlocal::texthash(
3647: 'cacb' => 'Currently active communication blocks',
3648: 'cour' => 'Course',
3649: 'dura' => 'Duration',
3650: 'blse' => 'Block set by'
3651: );
3652: my $output;
3653: $output = '<br />'.$lt{'cacb'}.':<br />';
3654: $output .= &start_data_table();
3655: $output .= '
3656: <tr>
3657: <th>'.$lt{'cour'}.'</th>
3658: <th>'.$lt{'dura'}.'</th>
3659: <th>'.$lt{'blse'}.'</th>
3660: </tr>
3661: ';
3662: foreach my $course (keys(%{$setters})) {
3663: my %courseinfo=&Apache::lonnet::coursedescription($course);
3664: for (my $i=0; $i<@{$$setters{$course}{staff}}; $i++) {
3665: my ($uname,$udom) = @{$$setters{$course}{staff}[$i]};
3666: my $fullname = &plainname($uname,$udom);
3667: if (defined($env{'user.name'}) && defined($env{'user.domain'})
3668: && $env{'user.name'} ne 'public'
3669: && $env{'user.domain'} ne 'public') {
3670: $fullname = &aboutmewrapper($fullname,$uname,$udom);
3671: }
3672: my ($openblock,$closeblock) = @{$$setters{$course}{times}[$i]};
3673: $openblock = &Apache::lonlocal::locallocaltime($openblock);
3674: $closeblock= &Apache::lonlocal::locallocaltime($closeblock);
3675: $output .= &Apache::loncommon::start_data_table_row().
3676: '<td>'.$courseinfo{'description'}.'</td>'.
3677: '<td>'.$openblock.' to '.$closeblock.'</td>'.
3678: '<td>'.$fullname.'</td>'.
3679: &Apache::loncommon::end_data_table_row();
3680: }
3681: }
3682: $output .= &end_data_table();
3683: }
3684:
3685: sub blocking_status {
3686: my ($activity,$uname,$udom) = @_;
3687: my %setters;
3688: my ($blocked,$output,$ownitem,$is_course);
3689: my ($startblock,$endblock)=&blockcheck(\%setters,$activity,$uname,$udom);
3690: if ($startblock && $endblock) {
3691: $blocked = 1;
3692: if (wantarray) {
3693: my $category;
3694: if ($activity eq 'boards') {
3695: $category = 'Discussion posts in this course';
3696: } elsif ($activity eq 'blogs') {
3697: $category = 'Blogs';
3698: } elsif ($activity eq 'port') {
3699: if (defined($uname) && defined($udom)) {
3700: if ($uname eq $env{'user.name'} &&
3701: $udom eq $env{'user.domain'}) {
3702: $ownitem = 1;
3703: }
3704: }
3705: $is_course = &Apache::lonnet::is_course($udom,$uname);
3706: if ($ownitem) {
3707: $category = 'Your portfolio files';
3708: } elsif ($is_course) {
3709: my $coursedesc;
3710: foreach my $course (keys(%setters)) {
3711: my %courseinfo =
3712: &Apache::lonnet::coursedescription($course);
3713: $coursedesc = $courseinfo{'description'};
3714: }
3715: $category = "Group files in the course '$coursedesc'";
3716: } else {
3717: $category = 'Portfolio files belonging to ';
3718: if ($env{'user.name'} eq 'public' &&
3719: $env{'user.domain'} eq 'public') {
3720: $category .= &plainname($uname,$udom);
3721: } else {
3722: $category .= &aboutmewrapper(&plainname($uname,$udom),$uname,$udom);
3723: }
3724: }
3725: } elsif ($activity eq 'groups') {
3726: $category = 'Groups in this course';
3727: }
3728: my $showstart = &Apache::lonlocal::locallocaltime($startblock);
3729: my $showend = &Apache::lonlocal::locallocaltime($endblock);
3730: $output = '<br />'.&mt('[_1] will be inaccessible between [_2] and [_3] because communication is being blocked.',$category,$showstart,$showend).'<br />';
3731: if (!($activity eq 'port' && !($ownitem) && !($is_course))) {
3732: $output .= &build_block_table($startblock,$endblock,\%setters);
3733: }
3734: }
3735: }
3736: if (wantarray) {
3737: return ($blocked,$output);
3738: } else {
3739: return $blocked;
3740: }
3741: }
3742:
3743: ###############################################
3744:
3745: =pod
3746:
3747: =head1 Domain Template Functions
3748:
3749: =over 4
3750:
3751: =item * &determinedomain()
3752:
3753: Inputs: $domain (usually will be undef)
3754:
3755: Returns: Determines which domain should be used for designs
3756:
3757: =cut
3758:
3759: ###############################################
3760: sub determinedomain {
3761: my $domain=shift;
3762: if (! $domain) {
3763: # Determine domain if we have not been given one
3764: $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
3765: if ($env{'user.domain'}) { $domain=$env{'user.domain'}; }
3766: if ($env{'request.role.domain'}) {
3767: $domain=$env{'request.role.domain'};
3768: }
3769: }
3770: return $domain;
3771: }
3772: ###############################################
3773:
3774: sub devalidate_domconfig_cache {
3775: my ($udom)=@_;
3776: &Apache::lonnet::devalidate_cache_new('domainconfig',$udom);
3777: }
3778:
3779: # ---------------------- Get domain configuration for a domain
3780: sub get_domainconf {
3781: my ($udom) = @_;
3782: my $cachetime=1800;
3783: my ($result,$cached)=&Apache::lonnet::is_cached_new('domainconfig',$udom);
3784: if (defined($cached)) { return %{$result}; }
3785:
3786: my %domconfig = &Apache::lonnet::get_dom('configuration',
3787: ['login','rolecolors'],$udom);
3788: my (%designhash,%legacy);
3789: if (keys(%domconfig) > 0) {
3790: if (ref($domconfig{'login'}) eq 'HASH') {
3791: if (keys(%{$domconfig{'login'}})) {
3792: foreach my $key (keys(%{$domconfig{'login'}})) {
3793: $designhash{$udom.'.login.'.$key}=$domconfig{'login'}{$key};
3794: }
3795: } else {
3796: $legacy{'login'} = 1;
3797: }
3798: } else {
3799: $legacy{'login'} = 1;
3800: }
3801: if (ref($domconfig{'rolecolors'}) eq 'HASH') {
3802: if (keys(%{$domconfig{'rolecolors'}})) {
3803: foreach my $role (keys(%{$domconfig{'rolecolors'}})) {
3804: if (ref($domconfig{'rolecolors'}{$role}) eq 'HASH') {
3805: foreach my $item (keys(%{$domconfig{'rolecolors'}{$role}})) {
3806: $designhash{$udom.'.'.$role.'.'.$item}=$domconfig{'rolecolors'}{$role}{$item};
3807: }
3808: }
3809: }
3810: } else {
3811: $legacy{'rolecolors'} = 1;
3812: }
3813: } else {
3814: $legacy{'rolecolors'} = 1;
3815: }
3816: if (keys(%legacy) > 0) {
3817: my %legacyhash = &get_legacy_domconf($udom);
3818: foreach my $item (keys(%legacyhash)) {
3819: if ($item =~ /^\Q$udom\E\.login/) {
3820: if ($legacy{'login'}) {
3821: $designhash{$item} = $legacyhash{$item};
3822: }
3823: } else {
3824: if ($legacy{'rolecolors'}) {
3825: $designhash{$item} = $legacyhash{$item};
3826: }
3827: }
3828: }
3829: }
3830: } else {
3831: %designhash = &get_legacy_domconf($udom);
3832: }
3833: &Apache::lonnet::do_cache_new('domainconfig',$udom,\%designhash,
3834: $cachetime);
3835: return %designhash;
3836: }
3837:
3838: sub get_legacy_domconf {
3839: my ($udom) = @_;
3840: my %legacyhash;
3841: my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors';
3842: my $designfile = $designdir.'/'.$udom.'.tab';
3843: if (-e $designfile) {
3844: if ( open (my $fh,"<$designfile") ) {
3845: while (my $line = <$fh>) {
3846: next if ($line =~ /^\#/);
3847: chomp($line);
3848: my ($key,$val)=(split(/\=/,$line));
3849: if ($val) { $legacyhash{$udom.'.'.$key}=$val; }
3850: }
3851: close($fh);
3852: }
3853: }
3854: if (-e '/home/httpd/html/adm/lonDomLogos/'.$udom.'.gif') {
3855: $legacyhash{$udom.'.login.domlogo'} = "/adm/lonDomLogos/$udom.gif";
3856: }
3857: return %legacyhash;
3858: }
3859:
3860: =pod
3861:
3862: =item * &domainlogo()
3863:
3864: Inputs: $domain (usually will be undef)
3865:
3866: Returns: A link to a domain logo, if the domain logo exists.
3867: If the domain logo does not exist, a description of the domain.
3868:
3869: =cut
3870:
3871: ###############################################
3872: sub domainlogo {
3873: my $domain = &determinedomain(shift);
3874: my %designhash = &get_domainconf($domain);
3875: # See if there is a logo
3876: if ($designhash{$domain.'.login.domlogo'} ne '') {
3877: my $imgsrc = $designhash{$domain.'.login.domlogo'};
3878: if ($imgsrc =~ m{^/(adm|res)/}) {
3879: if ($imgsrc =~ m{^/res/}) {
3880: my $local_name = &Apache::lonnet::filelocation('',$imgsrc);
3881: &Apache::lonnet::repcopy($local_name);
3882: }
3883: $imgsrc = &lonhttpdurl($imgsrc);
3884: }
3885: return '<img src="'.$imgsrc.'" alt="'.$domain.'" />';
3886: } elsif (defined(&Apache::lonnet::domain($domain,'description'))) {
3887: return &Apache::lonnet::domain($domain,'description');
3888: } else {
3889: return '';
3890: }
3891: }
3892: ##############################################
3893:
3894: =pod
3895:
3896: =item * &designparm()
3897:
3898: Inputs: $which parameter; $domain (usually will be undef)
3899:
3900: Returns: value of designparamter $which
3901:
3902: =cut
3903:
3904:
3905: ##############################################
3906: sub designparm {
3907: my ($which,$domain)=@_;
3908: if ($env{'browser.blackwhite'} eq 'on') {
3909: if ($which=~/\.(font|alink|vlink|link|textcol)$/) {
3910: return '#000000';
3911: }
3912: if ($which=~/\.(pgbg|sidebg|bgcol)$/) {
3913: return '#FFFFFF';
3914: }
3915: if ($which=~/\.tabbg$/) {
3916: return '#CCCCCC';
3917: }
3918: }
3919: if (exists($env{'environment.color.'.$which})) {
3920: return $env{'environment.color.'.$which};
3921: }
3922: $domain=&determinedomain($domain);
3923: my %domdesign = &get_domainconf($domain);
3924: my $output;
3925: if ($domdesign{$domain.'.'.$which} ne '') {
3926: $output = $domdesign{$domain.'.'.$which};
3927: } else {
3928: $output = $defaultdesign{$which};
3929: }
3930: if (($which =~ /^(student|coordinator|author|admin)\.img$/) ||
3931: ($which =~ /login\.(img|logo|domlogo|login)/)) {
3932: if ($output =~ m{^/(adm|res)/}) {
3933: if ($output =~ m{^/res/}) {
3934: my $local_name = &Apache::lonnet::filelocation('',$output);
3935: &Apache::lonnet::repcopy($local_name);
3936: }
3937: $output = &lonhttpdurl($output);
3938: }
3939: }
3940: return $output;
3941: }
3942:
3943: ###############################################
3944: ###############################################
3945:
3946: =pod
3947:
3948: =back
3949:
3950: =head1 HTML Helpers
3951:
3952: =over 4
3953:
3954: =item * &bodytag()
3955:
3956: Returns a uniform header for LON-CAPA web pages.
3957:
3958: Inputs:
3959:
3960: =over 4
3961:
3962: =item * $title, A title to be displayed on the page.
3963:
3964: =item * $function, the current role (can be undef).
3965:
3966: =item * $addentries, extra parameters for the <body> tag.
3967:
3968: =item * $bodyonly, if defined, only return the <body> tag.
3969:
3970: =item * $domain, if defined, force a given domain.
3971:
3972: =item * $forcereg, if page should register as content page (relevant for
3973: text interface only)
3974:
3975: =item * $customtitle, alternate text to use instead of $title
3976: in the title box that appears, this text
3977: is not auto translated like the $title is
3978:
3979: =item * $notopbar, if true, keep the 'what is this' info but remove the
3980: navigational links
3981:
3982: =item * $bgcolor, used to override the bgcolor on a webpage to a specific value
3983:
3984: =item * $notitle, if true keep the nav controls, but remove the title bar
3985:
3986: =item * $no_inline_link, if true and in remote mode, don't show the
3987: 'Switch To Inline Menu' link
3988:
3989: =item * $args, optional argument valid values are
3990: no_auto_mt_title -> prevents &mt()ing the title arg
3991: inherit_jsmath -> when creating popup window in a page,
3992: should it have jsmath forced on by the
3993: current page
3994:
3995: =back
3996:
3997: Returns: A uniform header for LON-CAPA web pages.
3998: If $bodyonly is nonzero, a string containing a <body> tag will be returned.
3999: If $bodyonly is undef or zero, an html string containing a <body> tag and
4000: other decorations will be returned.
4001:
4002: =cut
4003:
4004: sub bodytag {
4005: my ($title,$function,$addentries,$bodyonly,$domain,$forcereg,$customtitle,
4006: $notopbar,$bgcolor,$notitle,$no_inline_link,$args)=@_;
4007:
4008: if (!$args->{'no_auto_mt_title'}) { $title = &mt($title); }
4009:
4010: $function = &get_users_function() if (!$function);
4011: my $img = &designparm($function.'.img',$domain);
4012: my $font = &designparm($function.'.font',$domain);
4013: my $pgbg = $bgcolor || &designparm($function.'.pgbg',$domain);
4014:
4015: my %design = ( 'style' => 'margin-top: 0px',
4016: 'bgcolor' => $pgbg,
4017: 'text' => $font,
4018: 'alink' => &designparm($function.'.alink',$domain),
4019: 'vlink' => &designparm($function.'.vlink',$domain),
4020: 'link' => &designparm($function.'.link',$domain),);
4021: @design{keys(%$addentries)} = @$addentries{keys(%$addentries)};
4022:
4023: # role and realm
4024: my ($role,$realm) = split(/\./,$env{'request.role'},2);
4025: if ($role eq 'ca') {
4026: my ($rdom,$rname) = ($realm =~ m{^/($match_domain)/($match_username)$});
4027: $realm = &plainname($rname,$rdom);
4028: }
4029: # realm
4030: if ($env{'request.course.id'}) {
4031: if ($env{'request.role'} !~ /^cr/) {
4032: $role = &Apache::lonnet::plaintext($role,&course_type());
4033: }
4034: $realm = $env{'course.'.$env{'request.course.id'}.'.description'};
4035: } else {
4036: $role = &Apache::lonnet::plaintext($role);
4037: }
4038:
4039: if (!$realm) { $realm=' '; }
4040: # Set messages
4041: my $messages=&domainlogo($domain);
4042:
4043: my $extra_body_attr = &make_attr_string($forcereg,\%design);
4044:
4045: # construct main body tag
4046: my $bodytag = "<body $extra_body_attr>".
4047: &Apache::lontexconvert::init_math_support($args->{'inherit_jsmath'});
4048:
4049: if ($bodyonly) {
4050: return $bodytag;
4051: } elsif ($env{'browser.interface'} eq 'textual') {
4052: # Accessibility
4053:
4054: $bodytag.=&Apache::lonmenu::menubuttons($forcereg,$forcereg);
4055: if (!$notitle) {
4056: $bodytag.='<h1>LON-CAPA: '.$title.'</h1>';
4057: }
4058: return $bodytag;
4059: }
4060:
4061: my $name = &plainname($env{'user.name'},$env{'user.domain'});
4062: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4063: undef($role);
4064: } else {
4065: $name = &aboutmewrapper($name,$env{'user.name'},$env{'user.domain'});
4066: }
4067:
4068: my $roleinfo=(<<ENDROLE);
4069: <td class="LC_title_bar_who">
4070: <div class="LC_title_bar_name">
4071: $name
4072:
4073: </div>
4074: <div class="LC_title_bar_role">
4075: $role
4076: </div>
4077: <div class="LC_title_bar_realm">
4078: $realm
4079: </div>
4080: </td>
4081: ENDROLE
4082:
4083: my $titleinfo = '<span class="LC_title_bar_title">'.$title.'</span>';
4084: if ($customtitle) {
4085: $titleinfo = $customtitle;
4086: }
4087: #
4088: # Extra info if you are the DC
4089: my $dc_info = '';
4090: if ($env{'user.adv'} && exists($env{'user.role.dc./'.
4091: $env{'course.'.$env{'request.course.id'}.
4092: '.domain'}.'/'})) {
4093: my $cid = $env{'request.course.id'};
4094: $dc_info.= $cid.' '.$env{'course.'.$cid.'.internal.coursecode'};
4095: $dc_info =~ s/\s+$//;
4096: $dc_info = '('.$dc_info.')';
4097: }
4098:
4099: if (($env{'environment.remote'} eq 'off') || ($args->{'suppress_header_logos'})) {
4100: # No Remote
4101: if ($env{'request.state'} eq 'construct') {
4102: $forcereg=1;
4103: }
4104:
4105: if (!$customtitle && $env{'request.state'} eq 'construct') {
4106: # this is for resources; directories have customtitle, and crumbs
4107: # and select recent are created in lonpubdir.pm
4108: my ($uname,$thisdisfn)=
4109: ($env{'request.filename'} =~ m|^/home/([^/]+)/public_html/(.*)|);
4110: my $formaction='/priv/'.$uname.'/'.$thisdisfn;
4111: $formaction=~s/\/+/\//g;
4112:
4113: my $parentpath = '';
4114: my $lastitem = '';
4115: if ($thisdisfn =~ m-(.+/)([^/]*)$-) {
4116: $parentpath = $1;
4117: $lastitem = $2;
4118: } else {
4119: $lastitem = $thisdisfn;
4120: }
4121: $titleinfo =
4122: &Apache::loncommon::help_open_menu('','',3,'Authoring')
4123: .'<b>'.&mt('Construction Space').'</b>: '
4124: .'<form name="dirs" method="post" action="'.$formaction
4125: .'" target="_top"><tt><b>'
4126: .&Apache::lonhtmlcommon::crumbs($uname.'/'.$parentpath,'_top','/priv','','+1',1)."<font size=\"+1\">$lastitem</font></b></tt><br />"
4127: .&Apache::lonhtmlcommon::select_recent('construct','recent','this.form.action=this.form.recent.value;this.form.submit()')
4128: .'</form>'
4129: .&Apache::lonmenu::constspaceform();
4130: }
4131:
4132: my $titletable;
4133: if (!$notitle) {
4134: $titletable =
4135: '<table id="LC_title_bar">'.
4136: "<tr><td> $titleinfo $dc_info</td>".$roleinfo.
4137: '</tr></table>';
4138: }
4139: if ($notopbar) {
4140: $bodytag .= $titletable;
4141: } else {
4142: if ($env{'request.state'} eq 'construct') {
4143: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,$forcereg,
4144: $titletable);
4145: } else {
4146: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,$forcereg).
4147: $titletable;
4148: }
4149: }
4150: return $bodytag;
4151: }
4152:
4153: #
4154: # Top frame rendering, Remote is up
4155: #
4156:
4157: my $imgsrc = $img;
4158: if ($img =~ /^\/adm/) {
4159: $imgsrc = &lonhttpdurl($img);
4160: }
4161: my $upperleft='<img src="'.$imgsrc.'" alt="'.$function.'" />';
4162:
4163: # Explicit link to get inline menu
4164: my $menu= ($no_inline_link?''
4165: :'<br /><a href="/adm/remote?action=collapse">'.&mt('Switch to Inline Menu Mode').'</a>');
4166: #
4167: if ($notitle) {
4168: return $bodytag;
4169: }
4170: return(<<ENDBODY);
4171: $bodytag
4172: <table id="LC_title_bar" class="LC_with_remote">
4173: <tr><td class="LC_title_bar_role_logo">$upperleft</td>
4174: <td class="LC_title_bar_domain_logo">$messages </td>
4175: </tr>
4176: <tr><td>$titleinfo $dc_info $menu</td>
4177: $roleinfo
4178: </tr>
4179: </table>
4180: ENDBODY
4181: }
4182:
4183: sub make_attr_string {
4184: my ($register,$attr_ref) = @_;
4185:
4186: if ($attr_ref && !ref($attr_ref)) {
4187: die("addentries Must be a hash ref ".
4188: join(':',caller(1))." ".
4189: join(':',caller(0))." ");
4190: }
4191:
4192: if ($register) {
4193: my ($on_load,$on_unload);
4194: foreach my $key (keys(%{$attr_ref})) {
4195: if (lc($key) eq 'onload') {
4196: $on_load.=$attr_ref->{$key}.';';
4197: delete($attr_ref->{$key});
4198:
4199: } elsif (lc($key) eq 'onunload') {
4200: $on_unload.=$attr_ref->{$key}.';';
4201: delete($attr_ref->{$key});
4202: }
4203: }
4204: $attr_ref->{'onload'} =
4205: &Apache::lonmenu::loadevents(). $on_load;
4206: $attr_ref->{'onunload'}=
4207: &Apache::lonmenu::unloadevents().$on_unload;
4208: }
4209:
4210: # Accessibility font enhance
4211: if ($env{'browser.fontenhance'} eq 'on') {
4212: my $style;
4213: foreach my $key (keys(%{$attr_ref})) {
4214: if (lc($key) eq 'style') {
4215: $style.=$attr_ref->{$key}.';';
4216: delete($attr_ref->{$key});
4217: }
4218: }
4219: $attr_ref->{'style'}=$style.'; font-size: x-large;';
4220: }
4221:
4222: if ($env{'browser.blackwhite'} eq 'on') {
4223: delete($attr_ref->{'font'});
4224: delete($attr_ref->{'link'});
4225: delete($attr_ref->{'alink'});
4226: delete($attr_ref->{'vlink'});
4227: delete($attr_ref->{'bgcolor'});
4228: delete($attr_ref->{'background'});
4229: }
4230:
4231: my $attr_string;
4232: foreach my $attr (keys(%$attr_ref)) {
4233: $attr_string .= " $attr=\"".$attr_ref->{$attr}.'" ';
4234: }
4235: return $attr_string;
4236: }
4237:
4238:
4239: ###############################################
4240: ###############################################
4241:
4242: =pod
4243:
4244: =item * &endbodytag()
4245:
4246: Returns a uniform footer for LON-CAPA web pages.
4247:
4248: Inputs: 1 - optional reference to an args hash
4249: If in the hash, key for noredirectlink has a value which evaluates to true,
4250: a 'Continue' link is not displayed if the page contains an
4251: internal redirect in the <head></head> section,
4252: i.e., $env{'internal.head.redirect'} exists
4253:
4254: =cut
4255:
4256: sub endbodytag {
4257: my ($args) = @_;
4258: my $endbodytag='</body>';
4259: $endbodytag=&Apache::lontexconvert::jsMath_process()."\n".$endbodytag;
4260: if ( exists( $env{'internal.head.redirect'} ) ) {
4261: if (!(ref($args) eq 'HASH' && $args->{'noredirectlink'})) {
4262: $endbodytag=
4263: "<br /><a href=\"$env{'internal.head.redirect'}\">".
4264: &mt('Continue').'</a>'.
4265: $endbodytag;
4266: }
4267: }
4268: return $endbodytag;
4269: }
4270:
4271: =pod
4272:
4273: =item * &standard_css()
4274:
4275: Returns a style sheet
4276:
4277: Inputs: (all optional)
4278: domain -> force to color decorate a page for a specific
4279: domain
4280: function -> force usage of a specific rolish color scheme
4281: bgcolor -> override the default page bgcolor
4282:
4283: =cut
4284:
4285: sub standard_css {
4286: my ($function,$domain,$bgcolor) = @_;
4287: $function = &get_users_function() if (!$function);
4288: my $img = &designparm($function.'.img', $domain);
4289: my $tabbg = &designparm($function.'.tabbg', $domain);
4290: my $font = &designparm($function.'.font', $domain);
4291: my $sidebg = &designparm($function.'.sidebg',$domain);
4292: my $pgbg_or_bgcolor =
4293: $bgcolor ||
4294: &designparm($function.'.pgbg', $domain);
4295: my $pgbg = &designparm($function.'.pgbg', $domain);
4296: my $alink = &designparm($function.'.alink', $domain);
4297: my $vlink = &designparm($function.'.vlink', $domain);
4298: my $link = &designparm($function.'.link', $domain);
4299:
4300: my $sans = 'Verdana,Arial,Helvetica,sans-serif';
4301: my $mono = 'monospace';
4302: my $data_table_head = $tabbg;
4303: my $data_table_light = '#EEEEEE';
4304: my $data_table_dark = '#DDDDDD';
4305: my $data_table_darker = '#CCCCCC';
4306: my $data_table_highlight = '#FFFF00';
4307: my $mail_new = '#FFBB77';
4308: my $mail_new_hover = '#DD9955';
4309: my $mail_read = '#BBBB77';
4310: my $mail_read_hover = '#999944';
4311: my $mail_replied = '#AAAA88';
4312: my $mail_replied_hover = '#888855';
4313: my $mail_other = '#99BBBB';
4314: my $mail_other_hover = '#669999';
4315: my $table_header = '#DDDDDD';
4316: my $feedback_link_bg = '#BBBBBB';
4317:
4318: my $border = ($env{'browser.type'} eq 'explorer' ||
4319: $env{'browser.type'} eq 'safari' ) ? '0px 2px 0px 2px'
4320: : '0px 3px 0px 4px';
4321:
4322:
4323: return <<END;
4324: h1, h2, h3, th { font-family: $sans }
4325: a:focus { color: red; background: yellow }
4326: table.thinborder,
4327:
4328: table.thinborder tr th {
4329: border-style: solid;
4330: border-width: 1px;
4331: background: $tabbg;
4332: }
4333: table.thinborder tr td {
4334: border-style: solid;
4335: border-width: 1px
4336: }
4337:
4338: form, .inline { display: inline; }
4339: .center { text-align: center; }
4340: .LC_filename {font-family: $mono; white-space:pre;}
4341: .LC_error {
4342: color: red;
4343: font-size: larger;
4344: }
4345: .LC_warning,
4346: .LC_diff_removed {
4347: color: red;
4348: }
4349:
4350: .LC_info,
4351: .LC_success,
4352: .LC_diff_added {
4353: color: green;
4354: }
4355: .LC_unknown {
4356: color: yellow;
4357: }
4358:
4359: .LC_icon {
4360: border: 0px;
4361: }
4362: .LC_indexer_icon {
4363: border: 0px;
4364: height: 22px;
4365: }
4366: .LC_docs_spacer {
4367: width: 25px;
4368: height: 1px;
4369: border: 0px;
4370: }
4371:
4372: .LC_internal_info {
4373: color: #999;
4374: }
4375:
4376: table.LC_pastsubmission {
4377: border: 1px solid black;
4378: margin: 2px;
4379: }
4380:
4381: table#LC_top_nav, table#LC_menubuttons,table#LC_nav_location {
4382: width: 100%;
4383: background: $pgbg;
4384: border: 2px;
4385: border-collapse: separate;
4386: padding: 0px;
4387: }
4388:
4389: table#LC_title_bar, table.LC_breadcrumbs,
4390: table#LC_title_bar.LC_with_remote {
4391: width: 100%;
4392: border-color: $pgbg;
4393: border-style: solid;
4394: border-width: $border;
4395:
4396: background: $pgbg;
4397: font-family: $sans;
4398: border-collapse: collapse;
4399: padding: 0px;
4400: }
4401:
4402: table.LC_docs_path {
4403: width: 100%;
4404: border: 0;
4405: background: $pgbg;
4406: font-family: $sans;
4407: border-collapse: collapse;
4408: padding: 0px;
4409: }
4410:
4411: table#LC_title_bar td {
4412: background: $tabbg;
4413: }
4414: table#LC_title_bar td.LC_title_bar_who {
4415: background: $tabbg;
4416: color: $font;
4417: font: small $sans;
4418: text-align: right;
4419: }
4420: span.LC_metadata {
4421: font-family: $sans;
4422: }
4423: span.LC_title_bar_title {
4424: font: bold x-large $sans;
4425: }
4426: table#LC_title_bar td.LC_title_bar_domain_logo {
4427: background: $sidebg;
4428: text-align: right;
4429: padding: 0px;
4430: }
4431: table#LC_title_bar td.LC_title_bar_role_logo {
4432: background: $sidebg;
4433: padding: 0px;
4434: }
4435:
4436: table#LC_menubuttons_mainmenu {
4437: width: 100%;
4438: border: 0px;
4439: border-spacing: 1px;
4440: padding: 0px 1px;
4441: margin: 0px;
4442: border-collapse: separate;
4443: }
4444: table#LC_menubuttons img, table#LC_menubuttons_mainmenu img {
4445: border: 0px;
4446: }
4447: table#LC_top_nav td {
4448: background: $tabbg;
4449: border: 0px;
4450: font-size: small;
4451: }
4452: table#LC_top_nav td a, div#LC_top_nav a {
4453: color: $font;
4454: font-family: $sans;
4455: }
4456: table#LC_top_nav td.LC_top_nav_logo {
4457: background: $tabbg;
4458: text-align: left;
4459: white-space: nowrap;
4460: width: 31px;
4461: }
4462: table#LC_top_nav td.LC_top_nav_logo img {
4463: border: 0px;
4464: vertical-align: bottom;
4465: }
4466: table#LC_top_nav td.LC_top_nav_exit,
4467: table#LC_top_nav td.LC_top_nav_help {
4468: width: 2.0em;
4469: }
4470: table#LC_top_nav td.LC_top_nav_login {
4471: width: 4.0em;
4472: text-align: center;
4473: }
4474: table.LC_breadcrumbs td, table.LC_docs_path td {
4475: background: $tabbg;
4476: color: $font;
4477: font-family: $sans;
4478: font-size: smaller;
4479: }
4480: table.LC_breadcrumbs td.LC_breadcrumbs_component,
4481: table.LC_docs_path td.LC_docs_path_component {
4482: background: $tabbg;
4483: color: $font;
4484: font-family: $sans;
4485: font-size: larger;
4486: text-align: right;
4487: }
4488: td.LC_table_cell_checkbox {
4489: text-align: center;
4490: }
4491:
4492: table#LC_mainmenu td.LC_mainmenu_column {
4493: vertical-align: top;
4494: }
4495:
4496: .LC_menubuttons_inline_text {
4497: color: $font;
4498: font-family: $sans;
4499: font-size: smaller;
4500: }
4501:
4502: .LC_menubuttons_link {
4503: text-decoration: none;
4504: }
4505:
4506: .LC_menubuttons_category {
4507: color: $font;
4508: background: $pgbg;
4509: font-family: $sans;
4510: font-size: larger;
4511: font-weight: bold;
4512: }
4513:
4514: td.LC_menubuttons_text {
4515: width: 90%;
4516: color: $font;
4517: font-family: $sans;
4518: }
4519:
4520: td.LC_menubuttons_img {
4521: }
4522:
4523: .LC_current_location {
4524: font-family: $sans;
4525: background: $tabbg;
4526: }
4527: .LC_new_mail {
4528: font-family: $sans;
4529: background: $tabbg;
4530: font-weight: bold;
4531: }
4532:
4533: .LC_rolesmenu_is {
4534: font-family: $sans;
4535: }
4536:
4537: .LC_rolesmenu_selected {
4538: font-family: $sans;
4539: }
4540:
4541: .LC_rolesmenu_future {
4542: font-family: $sans;
4543: }
4544:
4545:
4546: .LC_rolesmenu_will {
4547: font-family: $sans;
4548: }
4549:
4550: .LC_rolesmenu_will_not {
4551: font-family: $sans;
4552: }
4553:
4554: .LC_rolesmenu_expired {
4555: font-family: $sans;
4556: }
4557:
4558: .LC_rolesinfo {
4559: font-family: $sans;
4560: }
4561:
4562: .LC_dropadd_labeltext {
4563: font-family: $sans;
4564: text-align: right;
4565: }
4566:
4567: .LC_preferences_labeltext {
4568: font-family: $sans;
4569: text-align: right;
4570: }
4571:
4572: table.LC_aboutme_port {
4573: border: 0px;
4574: border-collapse: collapse;
4575: border-spacing: 0px;
4576: }
4577: table.LC_data_table, table.LC_mail_list {
4578: border: 1px solid #000000;
4579: border-collapse: separate;
4580: border-spacing: 1px;
4581: background: $pgbg;
4582: }
4583: .LC_data_table_dense {
4584: font-size: small;
4585: }
4586: table.LC_nested_outer {
4587: border: 1px solid #000000;
4588: border-collapse: collapse;
4589: border-spacing: 0px;
4590: width: 100%;
4591: }
4592: table.LC_nested {
4593: border: 0px;
4594: border-collapse: collapse;
4595: border-spacing: 0px;
4596: width: 100%;
4597: }
4598: table.LC_data_table tr th, table.LC_calendar tr th, table.LC_mail_list tr th,
4599: table.LC_prior_tries tr th {
4600: font-weight: bold;
4601: background-color: $data_table_head;
4602: font-size: smaller;
4603: }
4604: table.LC_data_table tr.LC_odd_row > td,
4605: table.LC_aboutme_port tr td {
4606: background-color: $data_table_light;
4607: padding: 2px;
4608: }
4609: table.LC_data_table tr.LC_even_row > td,
4610: table.LC_aboutme_port tr.LC_even_row td {
4611: background-color: $data_table_dark;
4612: }
4613: table.LC_data_table tr.LC_data_table_highlight td {
4614: background-color: $data_table_darker;
4615: }
4616: table.LC_data_table tr td.LC_leftcol_header {
4617: background-color: $data_table_head;
4618: font-weight: bold;
4619: }
4620: table.LC_data_table tr.LC_empty_row td,
4621: table.LC_nested tr.LC_empty_row td {
4622: background-color: #FFFFFF;
4623: font-weight: bold;
4624: font-style: italic;
4625: text-align: center;
4626: padding: 8px;
4627: }
4628: table.LC_nested tr.LC_empty_row td {
4629: padding: 4ex
4630: }
4631: table.LC_nested_outer tr th {
4632: font-weight: bold;
4633: background-color: $data_table_head;
4634: font-size: smaller;
4635: border-bottom: 1px solid #000000;
4636: }
4637: table.LC_nested_outer tr td.LC_subheader {
4638: background-color: $data_table_head;
4639: font-weight: bold;
4640: font-size: small;
4641: border-bottom: 1px solid #000000;
4642: text-align: right;
4643: }
4644: table.LC_nested tr.LC_info_row td {
4645: background-color: #CCC;
4646: font-weight: bold;
4647: font-size: small;
4648: text-align: center;
4649: }
4650: table.LC_nested tr.LC_info_row td.LC_left_item,
4651: table.LC_nested_outer tr th.LC_left_item {
4652: text-align: left;
4653: }
4654: table.LC_nested td {
4655: background-color: #FFF;
4656: font-size: small;
4657: }
4658: table.LC_nested_outer tr th.LC_right_item,
4659: table.LC_nested tr.LC_info_row td.LC_right_item,
4660: table.LC_nested tr.LC_odd_row td.LC_right_item,
4661: table.LC_nested tr td.LC_right_item {
4662: text-align: right;
4663: }
4664:
4665: table.LC_nested tr.LC_odd_row td {
4666: background-color: #EEE;
4667: }
4668:
4669: table.LC_createuser {
4670: }
4671:
4672: table.LC_createuser tr.LC_section_row td {
4673: font-size: smaller;
4674: }
4675:
4676: table.LC_createuser tr.LC_info_row td {
4677: background-color: #CCC;
4678: font-weight: bold;
4679: text-align: center;
4680: }
4681:
4682: table.LC_calendar {
4683: border: 1px solid #000000;
4684: border-collapse: collapse;
4685: }
4686: table.LC_calendar_pickdate {
4687: font-size: xx-small;
4688: }
4689: table.LC_calendar tr td {
4690: border: 1px solid #000000;
4691: vertical-align: top;
4692: }
4693: table.LC_calendar tr td.LC_calendar_day_empty {
4694: background-color: $data_table_dark;
4695: }
4696: table.LC_calendar tr td.LC_calendar_day_current {
4697: background-color: $data_table_highlight;
4698: }
4699:
4700: table.LC_mail_list tr.LC_mail_new {
4701: background-color: $mail_new;
4702: }
4703: table.LC_mail_list tr.LC_mail_new:hover {
4704: background-color: $mail_new_hover;
4705: }
4706: table.LC_mail_list tr.LC_mail_read {
4707: background-color: $mail_read;
4708: }
4709: table.LC_mail_list tr.LC_mail_read:hover {
4710: background-color: $mail_read_hover;
4711: }
4712: table.LC_mail_list tr.LC_mail_replied {
4713: background-color: $mail_replied;
4714: }
4715: table.LC_mail_list tr.LC_mail_replied:hover {
4716: background-color: $mail_replied_hover;
4717: }
4718: table.LC_mail_list tr.LC_mail_other {
4719: background-color: $mail_other;
4720: }
4721: table.LC_mail_list tr.LC_mail_other:hover {
4722: background-color: $mail_other_hover;
4723: }
4724: table.LC_mail_list tr.LC_mail_even {
4725: }
4726: table.LC_mail_list tr.LC_mail_odd {
4727: }
4728:
4729:
4730: table#LC_portfolio_actions {
4731: width: auto;
4732: background: $pgbg;
4733: border: 0px;
4734: border-spacing: 2px 2px;
4735: padding: 0px;
4736: margin: 0px;
4737: border-collapse: separate;
4738: }
4739: table#LC_portfolio_actions td.LC_label {
4740: background: $tabbg;
4741: text-align: right;
4742: }
4743: table#LC_portfolio_actions td.LC_value {
4744: background: $tabbg;
4745: }
4746:
4747: table#LC_cstr_controls {
4748: width: 100%;
4749: border-collapse: collapse;
4750: }
4751: table#LC_cstr_controls tr td {
4752: border: 4px solid $pgbg;
4753: padding: 4px;
4754: text-align: center;
4755: background: $tabbg;
4756: }
4757: table#LC_cstr_controls tr th {
4758: border: 4px solid $pgbg;
4759: background: $table_header;
4760: text-align: center;
4761: font-family: $sans;
4762: font-size: smaller;
4763: }
4764:
4765: table#LC_browser {
4766:
4767: }
4768: table#LC_browser tr th {
4769: background: $table_header;
4770: }
4771: table#LC_browser tr td {
4772: padding: 2px;
4773: }
4774: table#LC_browser tr.LC_browser_file,
4775: table#LC_browser tr.LC_browser_file_published {
4776: background: #CCFF88;
4777: }
4778: table#LC_browser tr.LC_browser_file_locked,
4779: table#LC_browser tr.LC_browser_file_unpublished {
4780: background: #FFAA99;
4781: }
4782: table#LC_browser tr.LC_browser_file_obsolete {
4783: background: #AAAAAA;
4784: }
4785: table#LC_browser tr.LC_browser_file_modified,
4786: table#LC_browser tr.LC_browser_file_metamodified {
4787: background: #FFFF77;
4788: }
4789: table#LC_browser tr.LC_browser_folder {
4790: background: #CCCCFF;
4791: }
4792: span.LC_current_location {
4793: font-size: x-large;
4794: background: $pgbg;
4795: }
4796:
4797: span.LC_parm_menu_item {
4798: font-size: larger;
4799: font-family: $sans;
4800: }
4801: span.LC_parm_scope_all {
4802: color: red;
4803: }
4804: span.LC_parm_scope_folder {
4805: color: green;
4806: }
4807: span.LC_parm_scope_resource {
4808: color: orange;
4809: }
4810: span.LC_parm_part {
4811: color: blue;
4812: }
4813: span.LC_parm_folder, span.LC_parm_symb {
4814: font-size: x-small;
4815: font-family: $mono;
4816: color: #AAAAAA;
4817: }
4818:
4819: td.LC_parm_overview_level_menu, td.LC_parm_overview_map_menu,
4820: td.LC_parm_overview_parm_selectors, td.LC_parm_overview_parm_restrictions {
4821: border: 1px solid black;
4822: border-collapse: collapse;
4823: }
4824: table.LC_parm_overview_restrictions td {
4825: border-width: 1px 4px 1px 4px;
4826: border-style: solid;
4827: border-color: $pgbg;
4828: text-align: center;
4829: }
4830: table.LC_parm_overview_restrictions th {
4831: background: $tabbg;
4832: border-width: 1px 4px 1px 4px;
4833: border-style: solid;
4834: border-color: $pgbg;
4835: }
4836: table#LC_helpmenu {
4837: border: 0px;
4838: height: 55px;
4839: border-spacing: 0px;
4840: }
4841:
4842: table#LC_helpmenu fieldset legend {
4843: font-size: larger;
4844: font-weight: bold;
4845: }
4846: table#LC_helpmenu_links {
4847: width: 100%;
4848: border: 1px solid black;
4849: background: $pgbg;
4850: padding: 0px;
4851: border-spacing: 1px;
4852: }
4853: table#LC_helpmenu_links tr td {
4854: padding: 1px;
4855: background: $tabbg;
4856: text-align: center;
4857: font-weight: bold;
4858: }
4859:
4860: table#LC_helpmenu_links a:link, table#LC_helpmenu_links a:visited,
4861: table#LC_helpmenu_links a:active {
4862: text-decoration: none;
4863: color: $font;
4864: }
4865: table#LC_helpmenu_links a:hover {
4866: text-decoration: underline;
4867: color: $vlink;
4868: }
4869:
4870: .LC_chrt_popup_exists {
4871: border: 1px solid #339933;
4872: margin: -1px;
4873: }
4874: .LC_chrt_popup_up {
4875: border: 1px solid yellow;
4876: margin: -1px;
4877: }
4878: .LC_chrt_popup {
4879: border: 1px solid #8888FF;
4880: background: #CCCCFF;
4881: }
4882: table.LC_pick_box {
4883: border-collapse: separate;
4884: background: white;
4885: border: 1px solid black;
4886: border-spacing: 1px;
4887: }
4888: table.LC_pick_box td.LC_pick_box_title {
4889: background: $tabbg;
4890: font-weight: bold;
4891: text-align: right;
4892: width: 184px;
4893: padding: 8px;
4894: }
4895: table.LC_pick_box td.LC_selfenroll_pick_box_title {
4896: background: $tabbg;
4897: font-weight: bold;
4898: text-align: right;
4899: width: 350px;
4900: padding: 8px;
4901: }
4902:
4903: table.LC_pick_box td.LC_pick_box_value {
4904: text-align: left;
4905: padding: 8px;
4906: }
4907: table.LC_pick_box td.LC_pick_box_select {
4908: text-align: left;
4909: padding: 8px;
4910: }
4911: table.LC_pick_box td.LC_pick_box_separator {
4912: padding: 0px;
4913: height: 1px;
4914: background: black;
4915: }
4916: table.LC_pick_box td.LC_pick_box_submit {
4917: text-align: right;
4918: }
4919: table.LC_pick_box td.LC_evenrow_value {
4920: text-align: left;
4921: padding: 8px;
4922: background-color: $data_table_light;
4923: }
4924: table.LC_pick_box td.LC_oddrow_value {
4925: text-align: left;
4926: padding: 8px;
4927: background-color: $data_table_light;
4928: }
4929: table.LC_helpform_receipt {
4930: width: 620px;
4931: border-collapse: separate;
4932: background: white;
4933: border: 1px solid black;
4934: border-spacing: 1px;
4935: }
4936: table.LC_helpform_receipt td.LC_pick_box_title {
4937: background: $tabbg;
4938: font-weight: bold;
4939: text-align: right;
4940: width: 184px;
4941: padding: 8px;
4942: }
4943: table.LC_helpform_receipt td.LC_evenrow_value {
4944: text-align: left;
4945: padding: 8px;
4946: background-color: $data_table_light;
4947: }
4948: table.LC_helpform_receipt td.LC_oddrow_value {
4949: text-align: left;
4950: padding: 8px;
4951: background-color: $data_table_light;
4952: }
4953: table.LC_helpform_receipt td.LC_pick_box_separator {
4954: padding: 0px;
4955: height: 1px;
4956: background: black;
4957: }
4958: span.LC_helpform_receipt_cat {
4959: font-weight: bold;
4960: }
4961: table.LC_group_priv_box {
4962: background: white;
4963: border: 1px solid black;
4964: border-spacing: 1px;
4965: }
4966: table.LC_group_priv_box td.LC_pick_box_title {
4967: background: $tabbg;
4968: font-weight: bold;
4969: text-align: right;
4970: width: 184px;
4971: }
4972: table.LC_group_priv_box td.LC_groups_fixed {
4973: background: $data_table_light;
4974: text-align: center;
4975: }
4976: table.LC_group_priv_box td.LC_groups_optional {
4977: background: $data_table_dark;
4978: text-align: center;
4979: }
4980: table.LC_group_priv_box td.LC_groups_functionality {
4981: background: $data_table_darker;
4982: text-align: center;
4983: font-weight: bold;
4984: }
4985: table.LC_group_priv td {
4986: text-align: left;
4987: padding: 0px;
4988: }
4989:
4990: table.LC_notify_front_page {
4991: background: white;
4992: border: 1px solid black;
4993: padding: 8px;
4994: }
4995: table.LC_notify_front_page td {
4996: padding: 8px;
4997: }
4998: .LC_navbuttons {
4999: margin: 2ex 0ex 2ex 0ex;
5000: }
5001: .LC_topic_bar {
5002: font-family: $sans;
5003: font-weight: bold;
5004: width: 100%;
5005: background: $tabbg;
5006: vertical-align: middle;
5007: margin: 2ex 0ex 2ex 0ex;
5008: }
5009: .LC_topic_bar span {
5010: vertical-align: middle;
5011: }
5012: .LC_topic_bar img {
5013: vertical-align: bottom;
5014: }
5015: table.LC_course_group_status {
5016: margin: 20px;
5017: }
5018: table.LC_status_selector td {
5019: vertical-align: top;
5020: text-align: center;
5021: padding: 4px;
5022: }
5023: table.LC_descriptive_input td.LC_description {
5024: vertical-align: top;
5025: text-align: right;
5026: font-weight: bold;
5027: }
5028: div.LC_feedback_link {
5029: clear: both;
5030: background: white;
5031: width: 100%;
5032: }
5033: span.LC_feedback_link {
5034: background: $feedback_link_bg;
5035: font-size: larger;
5036: }
5037: span.LC_message_link {
5038: background: $feedback_link_bg;
5039: font-size: larger;
5040: position: absolute;
5041: right: 1em;
5042: }
5043:
5044: table.LC_prior_tries {
5045: border: 1px solid #000000;
5046: border-collapse: separate;
5047: border-spacing: 1px;
5048: }
5049:
5050: table.LC_prior_tries td {
5051: padding: 2px;
5052: }
5053:
5054: .LC_answer_correct {
5055: background: #AAFFAA;
5056: color: black;
5057: }
5058: .LC_answer_charged_try {
5059: background: #FFAAAA ! important;
5060: color: black;
5061: }
5062: .LC_answer_not_charged_try,
5063: .LC_answer_no_grade,
5064: .LC_answer_late {
5065: background: #FFFFAA;
5066: color: black;
5067: }
5068: .LC_answer_previous {
5069: background: #AAAAFF;
5070: color: black;
5071: }
5072: .LC_answer_no_message {
5073: background: #FFFFFF;
5074: color: black;
5075: }
5076: .LC_answer_unknown {
5077: background: orange;
5078: color: black;
5079: }
5080:
5081:
5082: span.LC_prior_numerical,
5083: span.LC_prior_string,
5084: span.LC_prior_custom,
5085: span.LC_prior_reaction,
5086: span.LC_prior_math {
5087: font-family: monospace;
5088: white-space: pre;
5089: }
5090:
5091: span.LC_prior_string {
5092: font-family: monospace;
5093: white-space: pre;
5094: }
5095:
5096: table.LC_prior_option {
5097: width: 100%;
5098: border-collapse: collapse;
5099: }
5100: table.LC_prior_rank, table.LC_prior_match {
5101: border-collapse: collapse;
5102: }
5103: table.LC_prior_option tr td,
5104: table.LC_prior_rank tr td,
5105: table.LC_prior_match tr td {
5106: border: 1px solid #000000;
5107: }
5108:
5109: span.LC_nobreak {
5110: white-space: nowrap;
5111: }
5112:
5113: span.LC_cusr_emph {
5114: font-style: italic;
5115: }
5116:
5117: span.LC_cusr_subheading {
5118: font-weight: normal;
5119: font-size: 85%;
5120: }
5121:
5122: table.LC_docs_documents {
5123: background: #BBBBBB;
5124: border-width: 0px;
5125: border-collapse: collapse;
5126: }
5127:
5128: table.LC_docs_documents td.LC_docs_document {
5129: border: 2px solid black;
5130: padding: 4px;
5131: }
5132:
5133: .LC_docs_course_commands div {
5134: float: left;
5135: border: 4px solid #AAAAAA;
5136: padding: 4px;
5137: background: #DDDDCC;
5138: }
5139:
5140: .LC_docs_entry_move {
5141: border: 0px;
5142: border-collapse: collapse;
5143: }
5144:
5145: .LC_docs_entry_move td {
5146: border: 2px solid #BBBBBB;
5147: background: #DDDDDD;
5148: }
5149:
5150: .LC_docs_editor td.LC_docs_entry_commands {
5151: background: #DDDDDD;
5152: font-size: x-small;
5153: }
5154: .LC_docs_copy {
5155: color: #000099;
5156: }
5157: .LC_docs_cut {
5158: color: #550044;
5159: }
5160: .LC_docs_rename {
5161: color: #009900;
5162: }
5163: .LC_docs_remove {
5164: color: #990000;
5165: }
5166:
5167: .LC_docs_reinit_warn,
5168: .LC_docs_ext_edit {
5169: font-size: x-small;
5170: }
5171:
5172: .LC_docs_editor td.LC_docs_entry_title,
5173: .LC_docs_editor td.LC_docs_entry_icon {
5174: background: #FFFFBB;
5175: }
5176: .LC_docs_editor td.LC_docs_entry_parameter {
5177: background: #BBBBFF;
5178: font-size: x-small;
5179: white-space: nowrap;
5180: }
5181:
5182: table.LC_docs_adddocs td,
5183: table.LC_docs_adddocs th {
5184: border: 1px solid #BBBBBB;
5185: padding: 4px;
5186: background: #DDDDDD;
5187: }
5188:
5189: table.LC_sty_begin {
5190: background: #BBFFBB;
5191: }
5192: table.LC_sty_end {
5193: background: #FFBBBB;
5194: }
5195:
5196: table.LC_double_column {
5197: border-width: 0px;
5198: border-collapse: collapse;
5199: width: 100%;
5200: padding: 2px;
5201: }
5202:
5203: table.LC_double_column tr td.LC_left_col {
5204: top: 2px;
5205: left: 2px;
5206: width: 47%;
5207: vertical-align: top;
5208: }
5209:
5210: table.LC_double_column tr td.LC_right_col {
5211: top: 2px;
5212: right: 2px;
5213: width: 47%;
5214: vertical-align: top;
5215: }
5216:
5217: span.LC_role_level {
5218: font-weight: bold;
5219: }
5220:
5221: div.LC_left_float {
5222: float: left;
5223: padding-right: 5%;
5224: padding-bottom: 4px;
5225: }
5226:
5227: div.LC_clear_float_header {
5228: padding-bottom: 2px;
5229: }
5230:
5231: div.LC_clear_float_footer {
5232: padding-top: 10px;
5233: clear: both;
5234: }
5235:
5236:
5237: div.LC_grade_select_mode {
5238: font-family: $sans;
5239: }
5240: div.LC_grade_select_mode div div {
5241: margin: 5px;
5242: }
5243: div.LC_grade_select_mode_selector {
5244: margin: 5px;
5245: float: left;
5246: }
5247: div.LC_grade_select_mode_selector_header {
5248: font: bold medium $sans;
5249: }
5250: div.LC_grade_select_mode_type {
5251: clear: left;
5252: }
5253:
5254: div.LC_grade_show_user {
5255: margin-top: 20px;
5256: border: 1px solid black;
5257: }
5258: div.LC_grade_user_name {
5259: background: #DDDDEE;
5260: border-bottom: 1px solid black;
5261: font: bold large $sans;
5262: }
5263: div.LC_grade_show_user_odd_row div.LC_grade_user_name {
5264: background: #DDEEDD;
5265: }
5266:
5267: div.LC_grade_show_problem,
5268: div.LC_grade_submissions,
5269: div.LC_grade_message_center,
5270: div.LC_grade_info_links,
5271: div.LC_grade_assign {
5272: margin: 5px;
5273: width: 99%;
5274: background: #FFFFFF;
5275: }
5276: div.LC_grade_show_problem_header,
5277: div.LC_grade_submissions_header,
5278: div.LC_grade_message_center_header,
5279: div.LC_grade_assign_header {
5280: font: bold large $sans;
5281: }
5282: div.LC_grade_show_problem_problem,
5283: div.LC_grade_submissions_body,
5284: div.LC_grade_message_center_body,
5285: div.LC_grade_assign_body {
5286: border: 1px solid black;
5287: width: 99%;
5288: background: #FFFFFF;
5289: }
5290: span.LC_grade_check_note {
5291: font: normal medium $sans;
5292: display: inline;
5293: position: absolute;
5294: right: 1em;
5295: }
5296:
5297: table.LC_scantron_action {
5298: width: 100%;
5299: }
5300: table.LC_scantron_action tr th {
5301: font: normal bold $sans;
5302: }
5303:
5304: div.LC_edit_problem_header,
5305: div.LC_edit_problem_footer {
5306: font: normal medium $sans;
5307: margin: 2px;
5308: }
5309: div.LC_edit_problem_header,
5310: div.LC_edit_problem_header div,
5311: div.LC_edit_problem_footer,
5312: div.LC_edit_problem_footer div,
5313: div.LC_edit_problem_editxml_header,
5314: div.LC_edit_problem_editxml_header div {
5315: margin-top: 5px;
5316: }
5317: div.LC_edit_problem_header_edit_row {
5318: background: $tabbg;
5319: padding: 3px;
5320: margin-bottom: 5px;
5321: }
5322: div.LC_edit_problem_header_title {
5323: font: larger bold $sans;
5324: background: $tabbg;
5325: padding: 3px;
5326: }
5327: table.LC_edit_problem_header_title {
5328: font: larger bold $sans;
5329: width: 100%;
5330: border-color: $pgbg;
5331: border-style: solid;
5332: border-width: $border;
5333:
5334: background: $tabbg;
5335: border-collapse: collapse;
5336: padding: 0px
5337: }
5338:
5339: div.LC_edit_problem_discards {
5340: float: left;
5341: padding-bottom: 5px;
5342: }
5343: div.LC_edit_problem_saves {
5344: float: right;
5345: padding-bottom: 5px;
5346: }
5347: hr.LC_edit_problem_divide {
5348: clear: both;
5349: color: $tabbg;
5350: background-color: $tabbg;
5351: height: 3px;
5352: border: 0px;
5353: }
5354: END
5355: }
5356:
5357: =pod
5358:
5359: =item * &headtag()
5360:
5361: Returns a uniform footer for LON-CAPA web pages.
5362:
5363: Inputs: $title - optional title for the head
5364: $head_extra - optional extra HTML to put inside the <head>
5365: $args - optional arguments
5366: force_register - if is true call registerurl so the remote is
5367: informed
5368: redirect -> array ref of
5369: 1- seconds before redirect occurs
5370: 2- url to redirect to
5371: 3- whether the side effect should occur
5372: (side effect of setting
5373: $env{'internal.head.redirect'} to the url
5374: redirected too)
5375: domain -> force to color decorate a page for a specific
5376: domain
5377: function -> force usage of a specific rolish color scheme
5378: bgcolor -> override the default page bgcolor
5379: no_auto_mt_title
5380: -> prevent &mt()ing the title arg
5381:
5382: =cut
5383:
5384: sub headtag {
5385: my ($title,$head_extra,$args) = @_;
5386:
5387: my $function = $args->{'function'} || &get_users_function();
5388: my $domain = $args->{'domain'} || &determinedomain();
5389: my $bgcolor = $args->{'bgcolor'} || &designparm($function.'.pgbg',$domain);
5390: my $url = join(':',$env{'user.name'},$env{'user.domain'},
5391: $Apache::lonnet::perlvar{'lonVersion'},
5392: #time(),
5393: $env{'environment.color.timestamp'},
5394: $function,$domain,$bgcolor);
5395:
5396: $url = '/adm/css/'.&escape($url).'.css';
5397:
5398: my $result =
5399: '<head>'.
5400: &font_settings();
5401:
5402: if (!$args->{'frameset'}) {
5403: $result .= &Apache::lonhtmlcommon::htmlareaheaders();
5404: }
5405: if ($args->{'force_register'}) {
5406: $result .= &Apache::lonmenu::registerurl(1);
5407: }
5408: if (!$args->{'no_nav_bar'}
5409: && !$args->{'only_body'}
5410: && !$args->{'frameset'}) {
5411: $result .= &help_menu_js();
5412: }
5413:
5414: if (ref($args->{'redirect'})) {
5415: my ($time,$url,$inhibit_continue) = @{$args->{'redirect'}};
5416: $url = &Apache::lonenc::check_encrypt($url);
5417: if (!$inhibit_continue) {
5418: $env{'internal.head.redirect'} = $url;
5419: }
5420: $result.=<<ADDMETA
5421: <meta http-equiv="pragma" content="no-cache" />
5422: <meta http-equiv="Refresh" content="$time; url=$url" />
5423: ADDMETA
5424: }
5425: if (!defined($title)) {
5426: $title = 'The LearningOnline Network with CAPA';
5427: }
5428: if (!$args->{'no_auto_mt_title'}) { $title = &mt($title); }
5429: $result .= '<title> LON-CAPA '.$title.'</title>'
5430: .'<link rel="stylesheet" type="text/css" href="'.$url.'" />'
5431: .$head_extra;
5432: return $result;
5433: }
5434:
5435: =pod
5436:
5437: =item * &font_settings()
5438:
5439: Returns neccessary <meta> to set the proper encoding
5440:
5441: Inputs: none
5442:
5443: =cut
5444:
5445: sub font_settings {
5446: my $headerstring='';
5447: if (!$env{'browser.mathml'} && $env{'browser.unicode'}) {
5448: $headerstring.=
5449: '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
5450: }
5451: return $headerstring;
5452: }
5453:
5454: =pod
5455:
5456: =item * &xml_begin()
5457:
5458: Returns the needed doctype and <html>
5459:
5460: Inputs: none
5461:
5462: =cut
5463:
5464: sub xml_begin {
5465: my $output='';
5466:
5467: if ($env{'internal.start_page'}==1) {
5468: &Apache::lonhtmlcommon::init_htmlareafields();
5469: }
5470:
5471: if ($env{'browser.mathml'}) {
5472: $output='<?xml version="1.0"?>'
5473: #.'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>'."\n"
5474: # .'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" '
5475:
5476: # .'<!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">] >'
5477: .'<!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">'
5478: .'<html xmlns:math="http://www.w3.org/1998/Math/MathML" '
5479: .'xmlns="http://www.w3.org/1999/xhtml">';
5480: } else {
5481: $output='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html>';
5482: }
5483: return $output;
5484: }
5485:
5486: =pod
5487:
5488: =item * &endheadtag()
5489:
5490: Returns a uniform </head> for LON-CAPA web pages.
5491:
5492: Inputs: none
5493:
5494: =cut
5495:
5496: sub endheadtag {
5497: return '</head>';
5498: }
5499:
5500: =pod
5501:
5502: =item * &head()
5503:
5504: Returns a uniform complete <head>..</head> section for LON-CAPA web pages.
5505:
5506: Inputs:
5507:
5508: =over 4
5509:
5510: $title - optional title for the page
5511:
5512: $head_extra - optional extra HTML to put inside the <head>
5513:
5514: =back
5515:
5516: =cut
5517:
5518: sub head {
5519: my ($title,$head_extra,$args) = @_;
5520: return &headtag($title,$head_extra,$args).&endheadtag();
5521: }
5522:
5523: =pod
5524:
5525: =item * &start_page()
5526:
5527: Returns a complete <html> .. <body> section for LON-CAPA web pages.
5528:
5529: Inputs:
5530:
5531: =over 4
5532:
5533: $title - optional title for the page
5534:
5535: $head_extra - optional extra HTML to incude inside the <head>
5536:
5537: $args - additional optional args supported are:
5538:
5539: =over 8
5540:
5541: only_body -> is true will set &bodytag() onlybodytag
5542: arg on
5543: no_nav_bar -> is true will set &bodytag() notopbar arg on
5544: add_entries -> additional attributes to add to the <body>
5545: domain -> force to color decorate a page for a
5546: specific domain
5547: function -> force usage of a specific rolish color
5548: scheme
5549: redirect -> see &headtag()
5550: bgcolor -> override the default page bg color
5551: js_ready -> return a string ready for being used in
5552: a javascript writeln
5553: html_encode -> return a string ready for being used in
5554: a html attribute
5555: force_register -> if is true will turn on the &bodytag()
5556: $forcereg arg
5557: body_title -> alternate text to use instead of $title
5558: in the title box that appears, this text
5559: is not auto translated like the $title is
5560: frameset -> if true will start with a <frameset>
5561: rather than <body>
5562: no_title -> if true the title bar won't be shown
5563: skip_phases -> hash ref of
5564: head -> skip the <html><head> generation
5565: body -> skip all <body> generation
5566: no_inline_link -> if true and in remote mode, don't show the
5567: 'Switch To Inline Menu' link
5568: no_auto_mt_title -> prevent &mt()ing the title arg
5569: inherit_jsmath -> when creating popup window in a page,
5570: should it have jsmath forced on by the
5571: current page
5572:
5573: =back
5574:
5575: =back
5576:
5577: =cut
5578:
5579: sub start_page {
5580: my ($title,$head_extra,$args) = @_;
5581: #&Apache::lonnet::logthis("start_page ".join(':',caller(0)));
5582: my %head_args;
5583: foreach my $arg ('redirect','force_register','domain','function',
5584: 'bgcolor','frameset','no_nav_bar','only_body',
5585: 'no_auto_mt_title') {
5586: if (defined($args->{$arg})) {
5587: $head_args{$arg} = $args->{$arg};
5588: }
5589: }
5590:
5591: $env{'internal.start_page'}++;
5592: my $result;
5593: if (! exists($args->{'skip_phases'}{'head'}) ) {
5594: $result.=
5595: &xml_begin().
5596: &headtag($title,$head_extra,\%head_args).&endheadtag();
5597: }
5598:
5599: if (! exists($args->{'skip_phases'}{'body'}) ) {
5600: if ($args->{'frameset'}) {
5601: my $attr_string = &make_attr_string($args->{'force_register'},
5602: $args->{'add_entries'});
5603: $result .= "\n<frameset $attr_string>\n";
5604: } else {
5605: $result .=
5606: &bodytag($title,
5607: $args->{'function'}, $args->{'add_entries'},
5608: $args->{'only_body'}, $args->{'domain'},
5609: $args->{'force_register'}, $args->{'body_title'},
5610: $args->{'no_nav_bar'}, $args->{'bgcolor'},
5611: $args->{'no_title'}, $args->{'no_inline_link'},
5612: $args);
5613: }
5614: }
5615:
5616: if ($args->{'js_ready'}) {
5617: $result = &js_ready($result);
5618: }
5619: if ($args->{'html_encode'}) {
5620: $result = &html_encode($result);
5621: }
5622: return $result;
5623: }
5624:
5625:
5626: =pod
5627:
5628: =item * &head()
5629:
5630: Returns a complete </body></html> section for LON-CAPA web pages.
5631:
5632: Inputs: $args - additional optional args supported are:
5633: js_ready -> return a string ready for being used in
5634: a javascript writeln
5635: html_encode -> return a string ready for being used in
5636: a html attribute
5637: frameset -> if true will start with a <frameset>
5638: rather than <body>
5639: dicsussion -> if true will get discussion from
5640: lonxml::xmlend
5641: (you can pass the target and parser arguments
5642: through optional 'target' and 'parser' args
5643: to this routine)
5644:
5645: =cut
5646:
5647: sub end_page {
5648: my ($args) = @_;
5649: $env{'internal.end_page'}++;
5650: my $result;
5651: if ($args->{'discussion'}) {
5652: my ($target,$parser);
5653: if (ref($args->{'discussion'})) {
5654: ($target,$parser) =($args->{'discussion'}{'target'},
5655: $args->{'discussion'}{'parser'});
5656: }
5657: $result .= &Apache::lonxml::xmlend($target,$parser);
5658: }
5659:
5660: if ($args->{'frameset'}) {
5661: $result .= '</frameset>';
5662: } else {
5663: $result .= &endbodytag($args);
5664: }
5665: $result .= "\n</html>";
5666:
5667: if ($args->{'js_ready'}) {
5668: $result = &js_ready($result);
5669: }
5670:
5671: if ($args->{'html_encode'}) {
5672: $result = &html_encode($result);
5673: }
5674:
5675: return $result;
5676: }
5677:
5678: sub html_encode {
5679: my ($result) = @_;
5680:
5681: $result = &HTML::Entities::encode($result,'<>&"');
5682:
5683: return $result;
5684: }
5685: sub js_ready {
5686: my ($result) = @_;
5687:
5688: $result =~ s/[\n\r]/ /xmsg;
5689: $result =~ s/\\/\\\\/xmsg;
5690: $result =~ s/'/\\'/xmsg;
5691: $result =~ s{</}{<\\/}xmsg;
5692:
5693: return $result;
5694: }
5695:
5696: sub validate_page {
5697: if ( exists($env{'internal.start_page'})
5698: && $env{'internal.start_page'} > 1) {
5699: &Apache::lonnet::logthis('start_page called multiple times '.
5700: $env{'internal.start_page'}.' '.
5701: $ENV{'request.filename'});
5702: }
5703: if ( exists($env{'internal.end_page'})
5704: && $env{'internal.end_page'} > 1) {
5705: &Apache::lonnet::logthis('end_page called multiple times '.
5706: $env{'internal.end_page'}.' '.
5707: $env{'request.filename'});
5708: }
5709: if ( exists($env{'internal.start_page'})
5710: && ! exists($env{'internal.end_page'})) {
5711: &Apache::lonnet::logthis('start_page called without end_page '.
5712: $env{'request.filename'});
5713: }
5714: if ( ! exists($env{'internal.start_page'})
5715: && exists($env{'internal.end_page'})) {
5716: &Apache::lonnet::logthis('end_page called without start_page'.
5717: $env{'request.filename'});
5718: }
5719: }
5720:
5721: sub simple_error_page {
5722: my ($r,$title,$msg) = @_;
5723: my $page =
5724: &Apache::loncommon::start_page($title).
5725: &mt($msg).
5726: &Apache::loncommon::end_page();
5727: if (ref($r)) {
5728: $r->print($page);
5729: return;
5730: }
5731: return $page;
5732: }
5733:
5734: {
5735: my @row_count;
5736: sub start_data_table {
5737: my ($add_class) = @_;
5738: my $css_class = (join(' ','LC_data_table',$add_class));
5739: unshift(@row_count,0);
5740: return '<table class="'.$css_class.'">'."\n";
5741: }
5742:
5743: sub end_data_table {
5744: shift(@row_count);
5745: return '</table>'."\n";;
5746: }
5747:
5748: sub start_data_table_row {
5749: my ($add_class) = @_;
5750: $row_count[0]++;
5751: my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
5752: $css_class = (join(' ',$css_class,$add_class));
5753: return '<tr class="'.$css_class.'">'."\n";;
5754: }
5755:
5756: sub continue_data_table_row {
5757: my ($add_class) = @_;
5758: my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
5759: $css_class = (join(' ',$css_class,$add_class));
5760: return '<tr class="'.$css_class.'">'."\n";;
5761: }
5762:
5763: sub end_data_table_row {
5764: return '</tr>'."\n";;
5765: }
5766:
5767: sub start_data_table_empty_row {
5768: $row_count[0]++;
5769: return '<tr class="LC_empty_row" >'."\n";;
5770: }
5771:
5772: sub end_data_table_empty_row {
5773: return '</tr>'."\n";;
5774: }
5775:
5776: sub start_data_table_header_row {
5777: return '<tr class="LC_header_row">'."\n";;
5778: }
5779:
5780: sub end_data_table_header_row {
5781: return '</tr>'."\n";;
5782: }
5783: }
5784:
5785: =pod
5786:
5787: =item * &inhibit_menu_check($arg)
5788:
5789: Checks for a inhibitmenu state and generates output to preserve it
5790:
5791: Inputs: $arg - can be any of
5792: - undef - in which case the return value is a string
5793: to add into arguments list of a uri
5794: - 'input' - in which case the return value is a HTML
5795: <form> <input> field of type hidden to
5796: preserve the value
5797: - a url - in which case the return value is the url with
5798: the neccesary cgi args added to preserve the
5799: inhibitmenu state
5800: - a ref to a url - no return value, but the string is
5801: updated to include the neccessary cgi
5802: args to preserve the inhibitmenu state
5803:
5804: =cut
5805:
5806: sub inhibit_menu_check {
5807: my ($arg) = @_;
5808: &get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['inhibitmenu']);
5809: if ($arg eq 'input') {
5810: if ($env{'form.inhibitmenu'}) {
5811: return '<input type="hidden" name="inhibitmenu" value="'.$env{'form.inhibitmenu'}.'" />';
5812: } else {
5813: return
5814: }
5815: }
5816: if ($env{'form.inhibitmenu'}) {
5817: if (ref($arg)) {
5818: $$arg .= '?inhibitmenu='.$env{'form.inhibitmenu'};
5819: } elsif ($arg eq '') {
5820: $arg .= 'inhibitmenu='.$env{'form.inhibitmenu'};
5821: } else {
5822: $arg .= '?inhibitmenu='.$env{'form.inhibitmenu'};
5823: }
5824: }
5825: if (!ref($arg)) {
5826: return $arg;
5827: }
5828: }
5829:
5830: ###############################################
5831:
5832: =pod
5833:
5834: =back
5835:
5836: =head1 User Information Routines
5837:
5838: =over 4
5839:
5840: =item * &get_users_function()
5841:
5842: Used by &bodytag to determine the current users primary role.
5843: Returns either 'student','coordinator','admin', or 'author'.
5844:
5845: =cut
5846:
5847: ###############################################
5848: sub get_users_function {
5849: my $function = 'student';
5850: if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
5851: $function='coordinator';
5852: }
5853: if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
5854: $function='admin';
5855: }
5856: if (($env{'request.role'}=~/^(au|ca)/) ||
5857: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
5858: $function='author';
5859: }
5860: return $function;
5861: }
5862:
5863: ###############################################
5864:
5865: =pod
5866:
5867: =item * &check_user_status()
5868:
5869: Determines current status of supplied role for a
5870: specific user. Roles can be active, previous or future.
5871:
5872: Inputs:
5873: user's domain, user's username, course's domain,
5874: course's number, optional section ID.
5875:
5876: Outputs:
5877: role status: active, previous or future.
5878:
5879: =cut
5880:
5881: sub check_user_status {
5882: my ($udom,$uname,$cdom,$crs,$role,$sec) = @_;
5883: my %userinfo = &Apache::lonnet::dump('roles',$udom,$uname);
5884: my @uroles = keys %userinfo;
5885: my $srchstr;
5886: my $active_chk = 'none';
5887: my $now = time;
5888: if (@uroles > 0) {
5889: if (($role eq 'cc') || ($sec eq '') || (!defined($sec))) {
5890: $srchstr = '/'.$cdom.'/'.$crs.'_'.$role;
5891: } else {
5892: $srchstr = '/'.$cdom.'/'.$crs.'/'.$sec.'_'.$role;
5893: }
5894: if (grep/^\Q$srchstr\E$/,@uroles) {
5895: my $role_end = 0;
5896: my $role_start = 0;
5897: $active_chk = 'active';
5898: if ($userinfo{$srchstr} =~ m/^\Q$role\E_(\d+)/) {
5899: $role_end = $1;
5900: if ($userinfo{$srchstr} =~ m/^\Q$role\E_\Q$role_end\E_(\d+)$/) {
5901: $role_start = $1;
5902: }
5903: }
5904: if ($role_start > 0) {
5905: if ($now < $role_start) {
5906: $active_chk = 'future';
5907: }
5908: }
5909: if ($role_end > 0) {
5910: if ($now > $role_end) {
5911: $active_chk = 'previous';
5912: }
5913: }
5914: }
5915: }
5916: return $active_chk;
5917: }
5918:
5919: ###############################################
5920:
5921: =pod
5922:
5923: =item * &get_sections()
5924:
5925: Determines all the sections for a course including
5926: sections with students and sections containing other roles.
5927: Incoming parameters:
5928:
5929: 1. domain
5930: 2. course number
5931: 3. reference to array containing roles for which sections should
5932: be gathered (optional).
5933: 4. reference to array containing status types for which sections
5934: should be gathered (optional).
5935:
5936: If the third argument is undefined, sections are gathered for any role.
5937: If the fourth argument is undefined, sections are gathered for any status.
5938: Permissible values are 'active' or 'future' or 'previous'.
5939:
5940: Returns section hash (keys are section IDs, values are
5941: number of users in each section), subject to the
5942: optional roles filter, optional status filter
5943:
5944: =cut
5945:
5946: ###############################################
5947: sub get_sections {
5948: my ($cdom,$cnum,$possible_roles,$possible_status) = @_;
5949: if (!defined($cdom) || !defined($cnum)) {
5950: my $cid = $env{'request.course.id'};
5951:
5952: return if (!defined($cid));
5953:
5954: $cdom = $env{'course.'.$cid.'.domain'};
5955: $cnum = $env{'course.'.$cid.'.num'};
5956: }
5957:
5958: my %sectioncount;
5959: my $now = time;
5960:
5961: if (!defined($possible_roles) || (grep(/^st$/,@$possible_roles))) {
5962: my ($classlist) = &Apache::loncoursedata::get_classlist($cdom,$cnum);
5963: my $sec_index = &Apache::loncoursedata::CL_SECTION();
5964: my $status_index = &Apache::loncoursedata::CL_STATUS();
5965: my $start_index = &Apache::loncoursedata::CL_START();
5966: my $end_index = &Apache::loncoursedata::CL_END();
5967: my $status;
5968: while (my ($student,$data) = each(%$classlist)) {
5969: my ($section,$stu_status,$start,$end) = ($data->[$sec_index],
5970: $data->[$status_index],
5971: $data->[$start_index],
5972: $data->[$end_index]);
5973: if ($stu_status eq 'Active') {
5974: $status = 'active';
5975: } elsif ($end < $now) {
5976: $status = 'previous';
5977: } elsif ($start > $now) {
5978: $status = 'future';
5979: }
5980: if ($section ne '-1' && $section !~ /^\s*$/) {
5981: if ((!defined($possible_status)) || (($status ne '') &&
5982: (grep/^\Q$status\E$/,@{$possible_status}))) {
5983: $sectioncount{$section}++;
5984: }
5985: }
5986: }
5987: }
5988: my %courseroles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
5989: foreach my $user (sort(keys(%courseroles))) {
5990: if ($user !~ /^(\w{2})/) { next; }
5991: my ($role) = ($user =~ /^(\w{2})/);
5992: if ($possible_roles && !(grep(/^$role$/,@$possible_roles))) { next; }
5993: my ($section,$status);
5994: if ($role eq 'cr' &&
5995: $user =~ m-^$role/[^/]*/[^/]*/[^/]*:[^:]*:[^:]*:(\w+)-) {
5996: $section=$1;
5997: }
5998: if ($user =~ /^$role:[^:]*:[^:]*:(\w+)/) { $section=$1; }
5999: if (!defined($section) || $section eq '-1') { next; }
6000: my ($end,$start) = ($courseroles{$user} =~ /^([^:]*):([^:]*)$/);
6001: if ($end == -1 && $start == -1) {
6002: next; #deleted role
6003: }
6004: if (!defined($possible_status)) {
6005: $sectioncount{$section}++;
6006: } else {
6007: if ((!$end || $end >= $now) && (!$start || $start <= $now)) {
6008: $status = 'active';
6009: } elsif ($end < $now) {
6010: $status = 'future';
6011: } elsif ($start > $now) {
6012: $status = 'previous';
6013: }
6014: if (($status ne '') && (grep/^\Q$status\E$/,@{$possible_status})) {
6015: $sectioncount{$section}++;
6016: }
6017: }
6018: }
6019: return %sectioncount;
6020: }
6021:
6022: ###############################################
6023:
6024: =pod
6025:
6026: =item * &get_course_users()
6027:
6028: Retrieves usernames:domains for users in the specified course
6029: with specific role(s), and access status.
6030:
6031: Incoming parameters:
6032: 1. course domain
6033: 2. course number
6034: 3. access status: users must have - either active,
6035: previous, future, or all.
6036: 4. reference to array of permissible roles
6037: 5. reference to array of section restrictions (optional)
6038: 6. reference to results object (hash of hashes).
6039: 7. reference to optional userdata hash
6040: 8. reference to optional statushash
6041: 9. flag if privileged users (except those set to unhide in
6042: course settings) should be excluded
6043: Keys of top level results hash are roles.
6044: Keys of inner hashes are username:domain, with
6045: values set to access type.
6046: Optional userdata hash returns an array with arguments in the
6047: same order as loncoursedata::get_classlist() for student data.
6048:
6049: Optional statushash returns
6050:
6051: Entries for end, start, section and status are blank because
6052: of the possibility of multiple values for non-student roles.
6053:
6054: =cut
6055:
6056: ###############################################
6057:
6058: sub get_course_users {
6059: my ($cdom,$cnum,$types,$roles,$sections,$users,$userdata,$statushash,$hidepriv) = @_;
6060: my %idx = ();
6061: my %seclists;
6062:
6063: $idx{udom} = &Apache::loncoursedata::CL_SDOM();
6064: $idx{uname} = &Apache::loncoursedata::CL_SNAME();
6065: $idx{end} = &Apache::loncoursedata::CL_END();
6066: $idx{start} = &Apache::loncoursedata::CL_START();
6067: $idx{id} = &Apache::loncoursedata::CL_ID();
6068: $idx{section} = &Apache::loncoursedata::CL_SECTION();
6069: $idx{fullname} = &Apache::loncoursedata::CL_FULLNAME();
6070: $idx{status} = &Apache::loncoursedata::CL_STATUS();
6071:
6072: if (grep(/^st$/,@{$roles})) {
6073: my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist($cdom,$cnum);
6074: my $now = time;
6075: foreach my $student (keys(%{$classlist})) {
6076: my $match = 0;
6077: my $secmatch = 0;
6078: my $section = $$classlist{$student}[$idx{section}];
6079: my $status = $$classlist{$student}[$idx{status}];
6080: if ($section eq '') {
6081: $section = 'none';
6082: }
6083: if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
6084: if (grep(/^all$/,@{$sections})) {
6085: $secmatch = 1;
6086: } elsif ($$classlist{$student}[$idx{section}] eq '') {
6087: if (grep(/^none$/,@{$sections})) {
6088: $secmatch = 1;
6089: }
6090: } else {
6091: if (grep(/^\Q$section\E$/,@{$sections})) {
6092: $secmatch = 1;
6093: }
6094: }
6095: if (!$secmatch) {
6096: next;
6097: }
6098: }
6099: if (defined($$types{'active'})) {
6100: if ($$classlist{$student}[$idx{status}] eq 'Active') {
6101: push(@{$$users{st}{$student}},'active');
6102: $match = 1;
6103: }
6104: }
6105: if (defined($$types{'previous'})) {
6106: if ($$classlist{$student}[$idx{status}] eq 'Expired') {
6107: push(@{$$users{st}{$student}},'previous');
6108: $match = 1;
6109: }
6110: }
6111: if (defined($$types{'future'})) {
6112: if ($$classlist{$student}[$idx{status}] eq 'Future') {
6113: push(@{$$users{st}{$student}},'future');
6114: $match = 1;
6115: }
6116: }
6117: if ($match) {
6118: push(@{$seclists{$student}},$section);
6119: if (ref($userdata) eq 'HASH') {
6120: $$userdata{$student} = $$classlist{$student};
6121: }
6122: if (ref($statushash) eq 'HASH') {
6123: $statushash->{$student}{'st'}{$section} = $status;
6124: }
6125: }
6126: }
6127: }
6128: if ((@{$roles} > 1) || ((@{$roles} == 1) && ($$roles[0] ne "st"))) {
6129: my %coursepersonnel = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
6130: my $now = time;
6131: my %displaystatus = ( previous => 'Expired',
6132: active => 'Active',
6133: future => 'Future',
6134: );
6135: my %nothide;
6136: if ($hidepriv) {
6137: my %coursehash=&Apache::lonnet::coursedescription($cdom.'_'.$cnum);
6138: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
6139: if ($user !~ /:/) {
6140: $nothide{join(':',split(/[\@]/,$user))}=1;
6141: } else {
6142: $nothide{$user} = 1;
6143: }
6144: }
6145: }
6146: foreach my $person (sort(keys(%coursepersonnel))) {
6147: my $match = 0;
6148: my $secmatch = 0;
6149: my $status;
6150: my ($role,$user,$usec) = ($person =~ /^([^:]*):([^:]+:[^:]+):([^:]*)/);
6151: $user =~ s/:$//;
6152: my ($end,$start) = split(/:/,$coursepersonnel{$person});
6153: if ($end == -1 || $start == -1) {
6154: next;
6155: }
6156: if (($role) && ((grep(/^\Q$role\E$/,@{$roles})) ||
6157: (grep(/^cr$/,@{$roles}) && $role =~ /^cr\//))) {
6158: my ($uname,$udom) = split(/:/,$user);
6159: if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
6160: if (grep(/^all$/,@{$sections})) {
6161: $secmatch = 1;
6162: } elsif ($usec eq '') {
6163: if (grep(/^none$/,@{$sections})) {
6164: $secmatch = 1;
6165: }
6166: } else {
6167: if (grep(/^\Q$usec\E$/,@{$sections})) {
6168: $secmatch = 1;
6169: }
6170: }
6171: if (!$secmatch) {
6172: next;
6173: }
6174: }
6175: if ($usec eq '') {
6176: $usec = 'none';
6177: }
6178: if ($uname ne '' && $udom ne '') {
6179: if ($hidepriv) {
6180: if ((&Apache::lonnet::privileged($uname,$udom)) &&
6181: (!$nothide{$uname.':'.$udom})) {
6182: next;
6183: }
6184: }
6185: if ($end > 0 && $end < $now) {
6186: $status = 'previous';
6187: } elsif ($start > $now) {
6188: $status = 'future';
6189: } else {
6190: $status = 'active';
6191: }
6192: foreach my $type (keys(%{$types})) {
6193: if ($status eq $type) {
6194: if (!grep(/^\Q$type\E$/,@{$$users{$role}{$user}})) {
6195: push(@{$$users{$role}{$user}},$type);
6196: }
6197: $match = 1;
6198: }
6199: }
6200: if (($match) && (ref($userdata) eq 'HASH')) {
6201: if (!exists($$userdata{$uname.':'.$udom})) {
6202: &get_user_info($udom,$uname,\%idx,$userdata);
6203: }
6204: if (!grep(/^\Q$usec\E$/,@{$seclists{$uname.':'.$udom}})) {
6205: push(@{$seclists{$uname.':'.$udom}},$usec);
6206: }
6207: if (ref($statushash) eq 'HASH') {
6208: $statushash->{$uname.':'.$udom}{$role}{$usec} = $displaystatus{$status};
6209: }
6210: }
6211: }
6212: }
6213: }
6214: if (grep(/^ow$/,@{$roles})) {
6215: if ((defined($cdom)) && (defined($cnum))) {
6216: my %csettings = &Apache::lonnet::get('environment',['internal.courseowner'],$cdom,$cnum);
6217: if ( defined($csettings{'internal.courseowner'}) ) {
6218: my $owner = $csettings{'internal.courseowner'};
6219: next if ($owner eq '');
6220: my ($ownername,$ownerdom);
6221: if ($owner =~ /^([^:]+):([^:]+)$/) {
6222: $ownername = $1;
6223: $ownerdom = $2;
6224: } else {
6225: $ownername = $owner;
6226: $ownerdom = $cdom;
6227: $owner = $ownername.':'.$ownerdom;
6228: }
6229: @{$$users{'ow'}{$owner}} = 'any';
6230: if (defined($userdata) &&
6231: !exists($$userdata{$owner})) {
6232: &get_user_info($ownerdom,$ownername,\%idx,$userdata);
6233: if (!grep(/^none$/,@{$seclists{$owner}})) {
6234: push(@{$seclists{$owner}},'none');
6235: }
6236: if (ref($statushash) eq 'HASH') {
6237: $statushash->{$owner}{'ow'}{'none'} = 'Any';
6238: }
6239: }
6240: }
6241: }
6242: }
6243: foreach my $user (keys(%seclists)) {
6244: @{$seclists{$user}} = (sort {$a <=> $b} @{$seclists{$user}});
6245: $$userdata{$user}[$idx{section}] = join(',',@{$seclists{$user}});
6246: }
6247: }
6248: return;
6249: }
6250:
6251: sub get_user_info {
6252: my ($udom,$uname,$idx,$userdata) = @_;
6253: $$userdata{$uname.':'.$udom}[$$idx{fullname}] =
6254: &plainname($uname,$udom,'lastname');
6255: $$userdata{$uname.':'.$udom}[$$idx{uname}] = $uname;
6256: $$userdata{$uname.':'.$udom}[$$idx{udom}] = $udom;
6257: my %idhash = &Apache::lonnet::idrget($udom,($uname));
6258: $$userdata{$uname.':'.$udom}[$$idx{id}] = $idhash{$uname};
6259: return;
6260: }
6261:
6262: ###############################################
6263:
6264: =pod
6265:
6266: =item * &get_user_quota()
6267:
6268: Retrieves quota assigned for storage of portfolio files for a user
6269:
6270: Incoming parameters:
6271: 1. user's username
6272: 2. user's domain
6273:
6274: Returns:
6275: 1. Disk quota (in Mb) assigned to student.
6276: 2. (Optional) Type of setting: custom or default
6277: (individually assigned or default for user's
6278: institutional status).
6279: 3. (Optional) - User's institutional status (e.g., faculty, staff
6280: or student - types as defined in localenroll::inst_usertypes
6281: for user's domain, which determines default quota for user.
6282: 4. (Optional) - Default quota which would apply to the user.
6283:
6284: If a value has been stored in the user's environment,
6285: it will return that, otherwise it returns the maximal default
6286: defined for the user's instituional status(es) in the domain.
6287:
6288: =cut
6289:
6290: ###############################################
6291:
6292:
6293: sub get_user_quota {
6294: my ($uname,$udom) = @_;
6295: my ($quota,$quotatype,$settingstatus,$defquota);
6296: if (!defined($udom)) {
6297: $udom = $env{'user.domain'};
6298: }
6299: if (!defined($uname)) {
6300: $uname = $env{'user.name'};
6301: }
6302: if (($udom eq '' || $uname eq '') ||
6303: ($udom eq 'public') && ($uname eq 'public')) {
6304: $quota = 0;
6305: $quotatype = 'default';
6306: $defquota = 0;
6307: } else {
6308: my $inststatus;
6309: if ($udom eq $env{'user.domain'} && $uname eq $env{'user.name'}) {
6310: $quota = $env{'environment.portfolioquota'};
6311: $inststatus = $env{'environment.inststatus'};
6312: } else {
6313: my %userenv =
6314: &Apache::lonnet::get('environment',['portfolioquota',
6315: 'inststatus'],$udom,$uname);
6316: my ($tmp) = keys(%userenv);
6317: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
6318: $quota = $userenv{'portfolioquota'};
6319: $inststatus = $userenv{'inststatus'};
6320: } else {
6321: undef(%userenv);
6322: }
6323: }
6324: ($defquota,$settingstatus) = &default_quota($udom,$inststatus);
6325: if ($quota eq '') {
6326: $quota = $defquota;
6327: $quotatype = 'default';
6328: } else {
6329: $quotatype = 'custom';
6330: }
6331: }
6332: if (wantarray) {
6333: return ($quota,$quotatype,$settingstatus,$defquota);
6334: } else {
6335: return $quota;
6336: }
6337: }
6338:
6339: ###############################################
6340:
6341: =pod
6342:
6343: =item * &default_quota()
6344:
6345: Retrieves default quota assigned for storage of user portfolio files,
6346: given an (optional) user's institutional status.
6347:
6348: Incoming parameters:
6349: 1. domain
6350: 2. (Optional) institutional status(es). This is a : separated list of
6351: status types (e.g., faculty, staff, student etc.)
6352: which apply to the user for whom the default is being retrieved.
6353: If the institutional status string in undefined, the domain
6354: default quota will be returned.
6355:
6356: Returns:
6357: 1. Default disk quota (in Mb) for user portfolios in the domain.
6358: 2. (Optional) institutional type which determined the value of the
6359: default quota.
6360:
6361: If a value has been stored in the domain's configuration db,
6362: it will return that, otherwise it returns 20 (for backwards
6363: compatibility with domains which have not set up a configuration
6364: db file; the original statically defined portfolio quota was 20 Mb).
6365:
6366: If the user's status includes multiple types (e.g., staff and student),
6367: the largest default quota which applies to the user determines the
6368: default quota returned.
6369:
6370: =cut
6371:
6372: ###############################################
6373:
6374:
6375: sub default_quota {
6376: my ($udom,$inststatus) = @_;
6377: my ($defquota,$settingstatus);
6378: my %quotahash = &Apache::lonnet::get_dom('configuration',
6379: ['quotas'],$udom);
6380: if (ref($quotahash{'quotas'}) eq 'HASH') {
6381: if ($inststatus ne '') {
6382: my @statuses = split(/:/,$inststatus);
6383: foreach my $item (@statuses) {
6384: if ($quotahash{'quotas'}{$item} ne '') {
6385: if ($defquota eq '') {
6386: $defquota = $quotahash{'quotas'}{$item};
6387: $settingstatus = $item;
6388: } elsif ($quotahash{'quotas'}{$item} > $defquota) {
6389: $defquota = $quotahash{'quotas'}{$item};
6390: $settingstatus = $item;
6391: }
6392: }
6393: }
6394: }
6395: if ($defquota eq '') {
6396: $defquota = $quotahash{'quotas'}{'default'};
6397: $settingstatus = 'default';
6398: }
6399: } else {
6400: $settingstatus = 'default';
6401: $defquota = 20;
6402: }
6403: if (wantarray) {
6404: return ($defquota,$settingstatus);
6405: } else {
6406: return $defquota;
6407: }
6408: }
6409:
6410: sub get_secgrprole_info {
6411: my ($cdom,$cnum,$needroles,$type) = @_;
6412: my %sections_count = &get_sections($cdom,$cnum);
6413: my @sections = (sort {$a <=> $b} keys(%sections_count));
6414: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
6415: my @groups = sort(keys(%curr_groups));
6416: my $allroles = [];
6417: my $rolehash;
6418: my $accesshash = {
6419: active => 'Currently has access',
6420: future => 'Will have future access',
6421: previous => 'Previously had access',
6422: };
6423: if ($needroles) {
6424: $rolehash = {'all' => 'all'};
6425: my %user_roles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
6426: if (&Apache::lonnet::error(%user_roles)) {
6427: undef(%user_roles);
6428: }
6429: foreach my $item (keys(%user_roles)) {
6430: my ($role)=split(/\:/,$item,2);
6431: if ($role eq 'cr') { next; }
6432: if ($role =~ /^cr/) {
6433: $$rolehash{$role} = (split('/',$role))[3];
6434: } else {
6435: $$rolehash{$role} = &Apache::lonnet::plaintext($role,$type);
6436: }
6437: }
6438: foreach my $key (sort(keys(%{$rolehash}))) {
6439: push(@{$allroles},$key);
6440: }
6441: push (@{$allroles},'st');
6442: $$rolehash{'st'} = &Apache::lonnet::plaintext('st',$type);
6443: }
6444: return (\@sections,\@groups,$allroles,$rolehash,$accesshash);
6445: }
6446:
6447: sub user_picker {
6448: my ($dom,$srch,$forcenewuser,$caller,$cancreate,$usertype) = @_;
6449: my $currdom = $dom;
6450: my %curr_selected = (
6451: srchin => 'dom',
6452: srchby => 'lastname',
6453: );
6454: my $srchterm;
6455: if ((ref($srch) eq 'HASH') && ($env{'form.origform'} ne 'crtusername')) {
6456: if ($srch->{'srchby'} ne '') {
6457: $curr_selected{'srchby'} = $srch->{'srchby'};
6458: }
6459: if ($srch->{'srchin'} ne '') {
6460: $curr_selected{'srchin'} = $srch->{'srchin'};
6461: }
6462: if ($srch->{'srchtype'} ne '') {
6463: $curr_selected{'srchtype'} = $srch->{'srchtype'};
6464: }
6465: if ($srch->{'srchdomain'} ne '') {
6466: $currdom = $srch->{'srchdomain'};
6467: }
6468: $srchterm = $srch->{'srchterm'};
6469: }
6470: my %lt=&Apache::lonlocal::texthash(
6471: 'usr' => 'Search criteria',
6472: 'doma' => 'Domain/institution to search',
6473: 'uname' => 'username',
6474: 'lastname' => 'last name',
6475: 'lastfirst' => 'last name, first name',
6476: 'crs' => 'in this course',
6477: 'dom' => 'in selected LON-CAPA domain',
6478: 'alc' => 'all LON-CAPA',
6479: 'instd' => 'in institutional directory for selected domain',
6480: 'exact' => 'is',
6481: 'contains' => 'contains',
6482: 'begins' => 'begins with',
6483: 'youm' => "You must include some text to search for.",
6484: 'thte' => "The text you are searching for must contain at least two characters when using a 'begins' type search.",
6485: 'thet' => "The text you are searching for must contain at least three characters when using a 'contains' type search.",
6486: 'yomc' => "You must choose a domain when using an institutional directory search.",
6487: 'ymcd' => "You must choose a domain when using a domain search.",
6488: 'whus' => "When using searching by last,first you must include a comma as separator between last name and first name.",
6489: 'whse' => "When searching by last,first you must include at least one character in the first name.",
6490: 'thfo' => "The following need to be corrected before the search can be run:",
6491: );
6492: my $domform = &select_dom_form($currdom,'srchdomain',1,1);
6493: my $srchinsel = ' <select name="srchin">';
6494:
6495: my @srchins = ('crs','dom','alc','instd');
6496:
6497: foreach my $option (@srchins) {
6498: # FIXME 'alc' option unavailable until
6499: # loncreateuser::print_user_query_page()
6500: # has been completed.
6501: next if ($option eq 'alc');
6502: next if ($option eq 'crs' && !$env{'request.course.id'});
6503: if ($curr_selected{'srchin'} eq $option) {
6504: $srchinsel .= '
6505: <option value="'.$option.'" selected="selected">'.$lt{$option}.'</option>';
6506: } else {
6507: $srchinsel .= '
6508: <option value="'.$option.'">'.$lt{$option}.'</option>';
6509: }
6510: }
6511: $srchinsel .= "\n </select>\n";
6512:
6513: my $srchbysel = ' <select name="srchby">';
6514: foreach my $option ('lastname','lastfirst','uname') {
6515: if ($curr_selected{'srchby'} eq $option) {
6516: $srchbysel .= '
6517: <option value="'.$option.'" selected="selected">'.$lt{$option}.'</option>';
6518: } else {
6519: $srchbysel .= '
6520: <option value="'.$option.'">'.$lt{$option}.'</option>';
6521: }
6522: }
6523: $srchbysel .= "\n </select>\n";
6524:
6525: my $srchtypesel = ' <select name="srchtype">';
6526: foreach my $option ('begins','contains','exact') {
6527: if ($curr_selected{'srchtype'} eq $option) {
6528: $srchtypesel .= '
6529: <option value="'.$option.'" selected="selected">'.$lt{$option}.'</option>';
6530: } else {
6531: $srchtypesel .= '
6532: <option value="'.$option.'">'.$lt{$option}.'</option>';
6533: }
6534: }
6535: $srchtypesel .= "\n </select>\n";
6536:
6537: my ($newuserscript,$new_user_create);
6538:
6539: if ($forcenewuser) {
6540: if (ref($srch) eq 'HASH') {
6541: if ($srch->{'srchby'} eq 'uname' && $srch->{'srchtype'} eq 'exact' && $srch->{'srchin'} eq 'dom' && $srch->{'srchdomain'} eq $env{'request.role.domain'}) {
6542: if ($cancreate) {
6543: $new_user_create = '<p> <input type="submit" name="forcenew" value="'.&HTML::Entities::encode(&mt('Make new user "[_1]"',$srchterm),'<>&"').'" onclick="javascript:setSearch(\'1\','.$caller.');" /> </p>';
6544: } else {
6545: my $helplink = ' href="javascript:helpMenu('."'display'".')"';
6546: my %usertypetext = (
6547: official => 'institutional',
6548: unofficial => 'non-institutional',
6549: );
6550: $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 />';
6551: }
6552: }
6553: }
6554:
6555: $newuserscript = <<"ENDSCRIPT";
6556:
6557: function setSearch(createnew,callingForm) {
6558: if (createnew == 1) {
6559: for (var i=0; i<callingForm.srchby.length; i++) {
6560: if (callingForm.srchby.options[i].value == 'uname') {
6561: callingForm.srchby.selectedIndex = i;
6562: }
6563: }
6564: for (var i=0; i<callingForm.srchin.length; i++) {
6565: if ( callingForm.srchin.options[i].value == 'dom') {
6566: callingForm.srchin.selectedIndex = i;
6567: }
6568: }
6569: for (var i=0; i<callingForm.srchtype.length; i++) {
6570: if (callingForm.srchtype.options[i].value == 'exact') {
6571: callingForm.srchtype.selectedIndex = i;
6572: }
6573: }
6574: for (var i=0; i<callingForm.srchdomain.length; i++) {
6575: if (callingForm.srchdomain.options[i].value == '$env{'request.role.domain'}') {
6576: callingForm.srchdomain.selectedIndex = i;
6577: }
6578: }
6579: }
6580: }
6581: ENDSCRIPT
6582:
6583: }
6584:
6585: my $output = <<"END_BLOCK";
6586: <script type="text/javascript">
6587: function validateEntry(callingForm) {
6588:
6589: var checkok = 1;
6590: var srchin;
6591: for (var i=0; i<callingForm.srchin.length; i++) {
6592: if ( callingForm.srchin[i].checked ) {
6593: srchin = callingForm.srchin[i].value;
6594: }
6595: }
6596:
6597: var srchtype = callingForm.srchtype.options[callingForm.srchtype.selectedIndex].value;
6598: var srchby = callingForm.srchby.options[callingForm.srchby.selectedIndex].value;
6599: var srchdomain = callingForm.srchdomain.options[callingForm.srchdomain.selectedIndex].value;
6600: var srchterm = callingForm.srchterm.value;
6601: var srchin = callingForm.srchin.options[callingForm.srchin.selectedIndex].value;
6602: var msg = "";
6603:
6604: if (srchterm == "") {
6605: checkok = 0;
6606: msg += "$lt{'youm'}\\n";
6607: }
6608:
6609: if (srchtype== 'begins') {
6610: if (srchterm.length < 2) {
6611: checkok = 0;
6612: msg += "$lt{'thte'}\\n";
6613: }
6614: }
6615:
6616: if (srchtype== 'contains') {
6617: if (srchterm.length < 3) {
6618: checkok = 0;
6619: msg += "$lt{'thet'}\\n";
6620: }
6621: }
6622: if (srchin == 'instd') {
6623: if (srchdomain == '') {
6624: checkok = 0;
6625: msg += "$lt{'yomc'}\\n";
6626: }
6627: }
6628: if (srchin == 'dom') {
6629: if (srchdomain == '') {
6630: checkok = 0;
6631: msg += "$lt{'ymcd'}\\n";
6632: }
6633: }
6634: if (srchby == 'lastfirst') {
6635: if (srchterm.indexOf(",") == -1) {
6636: checkok = 0;
6637: msg += "$lt{'whus'}\\n";
6638: }
6639: if (srchterm.indexOf(",") == srchterm.length -1) {
6640: checkok = 0;
6641: msg += "$lt{'whse'}\\n";
6642: }
6643: }
6644: if (checkok == 0) {
6645: alert("$lt{'thfo'}\\n"+msg);
6646: return;
6647: }
6648: if (checkok == 1) {
6649: callingForm.submit();
6650: }
6651: }
6652:
6653: $newuserscript
6654:
6655: </script>
6656:
6657: $new_user_create
6658:
6659: <table>
6660: <tr>
6661: <td>$lt{'doma'}:</td>
6662: <td>$domform</td>
6663: </td>
6664: </tr>
6665: <tr>
6666: <td>$lt{'usr'}:</td>
6667: <td>$srchbysel
6668: $srchtypesel
6669: <input type="text" size="15" name="srchterm" value="$srchterm" />
6670: $srchinsel
6671: </td>
6672: </tr>
6673: </table>
6674: <br />
6675: END_BLOCK
6676:
6677: return $output;
6678: }
6679:
6680: sub user_rule_check {
6681: my ($usershash,$checks,$alerts,$rulematch,$inst_results,$curr_rules,$got_rules) = @_;
6682: my $response;
6683: if (ref($usershash) eq 'HASH') {
6684: foreach my $user (keys(%{$usershash})) {
6685: my ($uname,$udom) = split(/:/,$user);
6686: next if ($udom eq '' || $uname eq '');
6687: my ($id,$newuser);
6688: if (ref($usershash->{$user}) eq 'HASH') {
6689: $newuser = $usershash->{$user}->{'newuser'};
6690: $id = $usershash->{$user}->{'id'};
6691: }
6692: my $inst_response;
6693: if (ref($checks) eq 'HASH') {
6694: if (defined($checks->{'username'})) {
6695: ($inst_response,%{$inst_results->{$user}}) =
6696: &Apache::lonnet::get_instuser($udom,$uname);
6697: } elsif (defined($checks->{'id'})) {
6698: ($inst_response,%{$inst_results->{$user}}) =
6699: &Apache::lonnet::get_instuser($udom,undef,$id);
6700: }
6701: } else {
6702: ($inst_response,%{$inst_results->{$user}}) =
6703: &Apache::lonnet::get_instuser($udom,$uname);
6704: return;
6705: }
6706: if (!$got_rules->{$udom}) {
6707: my %domconfig = &Apache::lonnet::get_dom('configuration',
6708: ['usercreation'],$udom);
6709: if (ref($domconfig{'usercreation'}) eq 'HASH') {
6710: foreach my $item ('username','id') {
6711: if (ref($domconfig{'usercreation'}{$item.'_rule'}) eq 'ARRAY') {
6712: $$curr_rules{$udom}{$item} =
6713: $domconfig{'usercreation'}{$item.'_rule'};
6714: }
6715: }
6716: }
6717: $got_rules->{$udom} = 1;
6718: }
6719: foreach my $item (keys(%{$checks})) {
6720: if (ref($$curr_rules{$udom}) eq 'HASH') {
6721: if (ref($$curr_rules{$udom}{$item}) eq 'ARRAY') {
6722: if (@{$$curr_rules{$udom}{$item}} > 0) {
6723: my %rule_check = &Apache::lonnet::inst_rulecheck($udom,$uname,$id,$item,$$curr_rules{$udom}{$item});
6724: foreach my $rule (@{$$curr_rules{$udom}{$item}}) {
6725: if ($rule_check{$rule}) {
6726: $$rulematch{$user}{$item} = $rule;
6727: if ($inst_response eq 'ok') {
6728: if (ref($inst_results) eq 'HASH') {
6729: if (ref($inst_results->{$user}) eq 'HASH') {
6730: if (keys(%{$inst_results->{$user}}) == 0) {
6731: $$alerts{$item}{$udom}{$uname} = 1;
6732: }
6733: }
6734: }
6735: }
6736: last;
6737: }
6738: }
6739: }
6740: }
6741: }
6742: }
6743: }
6744: }
6745: return;
6746: }
6747:
6748: sub user_rule_formats {
6749: my ($domain,$domdesc,$curr_rules,$check) = @_;
6750: my %text = (
6751: 'username' => 'Usernames',
6752: 'id' => 'IDs',
6753: );
6754: my $output;
6755: my ($rules,$ruleorder) = &Apache::lonnet::inst_userrules($domain,$check);
6756: if ((ref($rules) eq 'HASH') && (ref($ruleorder) eq 'ARRAY')) {
6757: if (@{$ruleorder} > 0) {
6758: $output = '<br />'.&mt("$text{$check} with the following format(s) may <span class=\"LC_cusr_emph\">only</span> be used for verified users at [_1]:",$domdesc).' <ul>';
6759: foreach my $rule (@{$ruleorder}) {
6760: if (ref($curr_rules) eq 'ARRAY') {
6761: if (grep(/^\Q$rule\E$/,@{$curr_rules})) {
6762: if (ref($rules->{$rule}) eq 'HASH') {
6763: $output .= '<li>'.$rules->{$rule}{'name'}.': '.
6764: $rules->{$rule}{'desc'}.'</li>';
6765: }
6766: }
6767: }
6768: }
6769: $output .= '</ul>';
6770: }
6771: }
6772: return $output;
6773: }
6774:
6775: sub instrule_disallow_msg {
6776: my ($checkitem,$domdesc,$count,$mode) = @_;
6777: my $response;
6778: my %text = (
6779: item => 'username',
6780: items => 'usernames',
6781: match => 'matches',
6782: do => 'does',
6783: action => 'a username',
6784: one => 'one',
6785: );
6786: if ($count > 1) {
6787: $text{'item'} = 'usernames';
6788: $text{'match'} ='match';
6789: $text{'do'} = 'do';
6790: $text{'action'} = 'usernames',
6791: $text{'one'} = 'ones';
6792: }
6793: if ($checkitem eq 'id') {
6794: $text{'items'} = 'IDs';
6795: $text{'item'} = 'ID';
6796: $text{'action'} = 'an ID';
6797: if ($count > 1) {
6798: $text{'item'} = 'IDs';
6799: $text{'action'} = 'IDs';
6800: }
6801: }
6802: $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 />';
6803: if ($mode eq 'upload') {
6804: if ($checkitem eq 'username') {
6805: $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 $text{'items'}.");
6806: } elsif ($checkitem eq 'id') {
6807: $response .= &mt("Either upload a file which includes $text{'action'} with a different format -- $text{'one'} that will not conflict with 'official' institutional $text{'items'}, or when associating fields with data columns, omit an association for the ID/Student Number field.");
6808: }
6809: } else {
6810: if ($checkitem eq 'username') {
6811: $response .= &mt("You must choose $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("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.");
6814: }
6815: }
6816: return $response;
6817: }
6818:
6819: sub personal_data_fieldtitles {
6820: my %fieldtitles = &Apache::lonlocal::texthash (
6821: id => 'Student/Employee ID',
6822: permanentemail => 'E-mail address',
6823: lastname => 'Last Name',
6824: firstname => 'First Name',
6825: middlename => 'Middle Name',
6826: generation => 'Generation',
6827: gen => 'Generation',
6828: );
6829: return %fieldtitles;
6830: }
6831:
6832: sub sorted_inst_types {
6833: my ($dom) = @_;
6834: my ($usertypes,$order) = &Apache::lonnet::retrieve_inst_usertypes($dom);
6835: my $othertitle = &mt('All users');
6836: if ($env{'request.course.id'}) {
6837: $othertitle = 'any';
6838: }
6839: my @types;
6840: if (ref($order) eq 'ARRAY') {
6841: @types = @{$order};
6842: }
6843: if (@types == 0) {
6844: if (ref($usertypes) eq 'HASH') {
6845: @types = sort(keys(%{$usertypes}));
6846: }
6847: }
6848: if (keys(%{$usertypes}) > 0) {
6849: $othertitle = &mt('Other users');
6850: if ($env{'request.course.id'}) {
6851: $othertitle = 'other';
6852: }
6853: }
6854: return ($othertitle,$usertypes,\@types);
6855: }
6856:
6857: sub get_institutional_codes {
6858: my ($settings,$allcourses,$LC_code) = @_;
6859: # Get complete list of course sections to update
6860: my @currsections = ();
6861: my @currxlists = ();
6862: my $coursecode = $$settings{'internal.coursecode'};
6863:
6864: if ($$settings{'internal.sectionnums'} ne '') {
6865: @currsections = split(/,/,$$settings{'internal.sectionnums'});
6866: }
6867:
6868: if ($$settings{'internal.crosslistings'} ne '') {
6869: @currxlists = split(/,/,$$settings{'internal.crosslistings'});
6870: }
6871:
6872: if (@currxlists > 0) {
6873: foreach (@currxlists) {
6874: if (m/^([^:]+):(\w*)$/) {
6875: unless (grep/^$1$/,@{$allcourses}) {
6876: push @{$allcourses},$1;
6877: $$LC_code{$1} = $2;
6878: }
6879: }
6880: }
6881: }
6882:
6883: if (@currsections > 0) {
6884: foreach (@currsections) {
6885: if (m/^(\w+):(\w*)$/) {
6886: my $sec = $coursecode.$1;
6887: my $lc_sec = $2;
6888: unless (grep/^$sec$/,@{$allcourses}) {
6889: push @{$allcourses},$sec;
6890: $$LC_code{$sec} = $lc_sec;
6891: }
6892: }
6893: }
6894: }
6895: return;
6896: }
6897:
6898: =pod
6899:
6900: =back
6901:
6902: =head1 HTTP Helpers
6903:
6904: =over 4
6905:
6906: =item * &get_unprocessed_cgi($query,$possible_names)
6907:
6908: Modify the %env hash to contain unprocessed CGI form parameters held in
6909: $query. The parameters listed in $possible_names (an array reference),
6910: will be set in $env{'form.name'} if they do not already exist.
6911:
6912: Typically called with $ENV{'QUERY_STRING'} as the first parameter.
6913: $possible_names is an ref to an array of form element names. As an example:
6914: get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);
6915: will result in $env{'form.uname'} and $env{'form.udom'} being set.
6916:
6917: =cut
6918:
6919: sub get_unprocessed_cgi {
6920: my ($query,$possible_names)= @_;
6921: # $Apache::lonxml::debug=1;
6922: foreach my $pair (split(/&/,$query)) {
6923: my ($name, $value) = split(/=/,$pair);
6924: $name = &unescape($name);
6925: if (!defined($possible_names) || (grep {$_ eq $name} @$possible_names)) {
6926: $value =~ tr/+/ /;
6927: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
6928: unless (defined($env{'form.'.$name})) { &add_to_env('form.'.$name,$value) };
6929: }
6930: }
6931: }
6932:
6933: =pod
6934:
6935: =item * &cacheheader()
6936:
6937: returns cache-controlling header code
6938:
6939: =cut
6940:
6941: sub cacheheader {
6942: unless ($env{'request.method'} eq 'GET') { return ''; }
6943: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
6944: my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
6945: <meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />
6946: <meta HTTP-EQUIV="Pragma" CONTENT="no-cache" />';
6947: return $output;
6948: }
6949:
6950: =pod
6951:
6952: =item * &no_cache($r)
6953:
6954: specifies header code to not have cache
6955:
6956: =cut
6957:
6958: sub no_cache {
6959: my ($r) = @_;
6960: if ($ENV{'REQUEST_METHOD'} ne 'GET' &&
6961: $env{'request.method'} ne 'GET') { return ''; }
6962: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime(time));
6963: $r->no_cache(1);
6964: $r->header_out("Expires" => $date);
6965: $r->header_out("Pragma" => "no-cache");
6966: }
6967:
6968: sub content_type {
6969: my ($r,$type,$charset) = @_;
6970: if ($r) {
6971: # Note that printout.pl calls this with undef for $r.
6972: &no_cache($r);
6973: }
6974: if ($env{'browser.mathml'} && $type eq 'text/html') { $type='text/xml'; }
6975: unless ($charset) {
6976: $charset=&Apache::lonlocal::current_encoding;
6977: }
6978: if ($charset) { $type.='; charset='.$charset; }
6979: if ($r) {
6980: $r->content_type($type);
6981: } else {
6982: print("Content-type: $type\n\n");
6983: }
6984: }
6985:
6986: =pod
6987:
6988: =item * &add_to_env($name,$value)
6989:
6990: adds $name to the %env hash with value
6991: $value, if $name already exists, the entry is converted to an array
6992: reference and $value is added to the array.
6993:
6994: =cut
6995:
6996: sub add_to_env {
6997: my ($name,$value)=@_;
6998: if (defined($env{$name})) {
6999: if (ref($env{$name})) {
7000: #already have multiple values
7001: push(@{ $env{$name} },$value);
7002: } else {
7003: #first time seeing multiple values, convert hash entry to an arrayref
7004: my $first=$env{$name};
7005: undef($env{$name});
7006: push(@{ $env{$name} },$first,$value);
7007: }
7008: } else {
7009: $env{$name}=$value;
7010: }
7011: }
7012:
7013: =pod
7014:
7015: =item * &get_env_multiple($name)
7016:
7017: gets $name from the %env hash, it seemlessly handles the cases where multiple
7018: values may be defined and end up as an array ref.
7019:
7020: returns an array of values
7021:
7022: =cut
7023:
7024: sub get_env_multiple {
7025: my ($name) = @_;
7026: my @values;
7027: if (defined($env{$name})) {
7028: # exists is it an array
7029: if (ref($env{$name})) {
7030: @values=@{ $env{$name} };
7031: } else {
7032: $values[0]=$env{$name};
7033: }
7034: }
7035: return(@values);
7036: }
7037:
7038: sub ask_for_embedded_content {
7039: my ($actionurl,$state,$allfiles,$codebase,$args)=@_;
7040: my $upload_output = '
7041: <form name="upload_embedded" action="'.$actionurl.'"
7042: method="post" enctype="multipart/form-data">';
7043: $upload_output .= $state;
7044: $upload_output .= '<b>Upload embedded files</b>:<br />'.&start_data_table();
7045:
7046: my $num = 0;
7047: foreach my $embed_file (sort {lc($a) cmp lc($b)} keys(%{$allfiles})) {
7048: $upload_output .= &start_data_table_row().
7049: '<td>'.$embed_file.'</td><td>';
7050: if ($args->{'ignore_remote_references'}
7051: && $embed_file =~ m{^\w+://}) {
7052: $upload_output.='<span class="LC_warning">'.&mt("URL points to other server.").'</span>';
7053: } elsif ($args->{'error_on_invalid_names'}
7054: && $embed_file ne &Apache::lonnet::clean_filename($embed_file,{'keep_path' => 1,})) {
7055:
7056: $upload_output.='<span class="LC_warning">'.&mt("Invalid characters").'</span>';
7057:
7058: } else {
7059: $upload_output .='
7060: <input name="embedded_item_'.$num.'" type="file" value="" />
7061: <input name="embedded_orig_'.$num.'" type="hidden" value="'.&escape($embed_file).'" />';
7062: my $attrib = join(':',@{$$allfiles{$embed_file}});
7063: $upload_output .=
7064: "\n\t\t".
7065: '<input name="embedded_attrib_'.$num.'" type="hidden" value="'.
7066: $attrib.'" />';
7067: if (exists($$codebase{$embed_file})) {
7068: $upload_output .=
7069: "\n\t\t".
7070: '<input name="codebase_'.$num.'" type="hidden" value="'.
7071: &escape($$codebase{$embed_file}).'" />';
7072: }
7073: }
7074: $upload_output .= '</td>'.&Apache::loncommon::end_data_table_row();
7075: $num++;
7076: }
7077: $upload_output .= &Apache::loncommon::end_data_table().'<br />
7078: <input type ="hidden" name="number_embedded_items" value="'.$num.'" />
7079: <input type ="submit" value="'.&mt('Upload Listed Files').'" />
7080: '.&mt('(only files for which a location has been provided will be uploaded)').'
7081: </form>';
7082: return $upload_output;
7083: }
7084:
7085: sub upload_embedded {
7086: my ($context,$dirpath,$uname,$udom,$dir_root,$url_root,$group,$disk_quota,
7087: $current_disk_usage) = @_;
7088: my $output;
7089: for (my $i=0; $i<$env{'form.number_embedded_items'}; $i++) {
7090: next if (!exists($env{'form.embedded_item_'.$i.'.filename'}));
7091: my $orig_uploaded_filename =
7092: $env{'form.embedded_item_'.$i.'.filename'};
7093:
7094: $env{'form.embedded_orig_'.$i} =
7095: &unescape($env{'form.embedded_orig_'.$i});
7096: my ($path,$fname) =
7097: ($env{'form.embedded_orig_'.$i} =~ m{(.*/)([^/]*)});
7098: # no path, whole string is fname
7099: if (!$fname) { $fname = $env{'form.embedded_orig_'.$i} };
7100:
7101: $path = $env{'form.currentpath'}.$path;
7102: $fname = &Apache::lonnet::clean_filename($fname);
7103: # See if there is anything left
7104: next if ($fname eq '');
7105:
7106: # Check if file already exists as a file or directory.
7107: my ($state,$msg);
7108: if ($context eq 'portfolio') {
7109: my $port_path = $dirpath;
7110: if ($group ne '') {
7111: $port_path = "groups/$group/$port_path";
7112: }
7113: ($state,$msg) = &check_for_upload($path,$fname,$group,'embedded_item_'.$i,
7114: $dir_root,$port_path,$disk_quota,
7115: $current_disk_usage,$uname,$udom);
7116: if ($state eq 'will_exceed_quota'
7117: || $state eq 'file_locked'
7118: || $state eq 'file_exists' ) {
7119: $output .= $msg;
7120: next;
7121: }
7122: } elsif (($context eq 'author') || ($context eq 'testbank')) {
7123: ($state,$msg) = &check_for_existing($path,$fname,'embedded_item_'.$i);
7124: if ($state eq 'exists') {
7125: $output .= $msg;
7126: next;
7127: }
7128: }
7129: # Check if extension is valid
7130: if (($fname =~ /\.(\w+)$/) &&
7131: (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
7132: $output .= &mt('Invalid file extension ([_1]) - reserved for LONCAPA use - rename the file with a different extension and re-upload. ',$1);
7133: next;
7134: } elsif (($fname =~ /\.(\w+)$/) &&
7135: (!defined(&Apache::loncommon::fileembstyle($1)))) {
7136: $output .= &mt('Unrecognized file extension ([_1]) - rename the file with a proper extension and re-upload.',$1);
7137: next;
7138: } elsif ($fname=~/\.(\d+)\.(\w+)$/) {
7139: $output .= &mt('File name not allowed - rename the file to remove the number immediately before the file extension([_1]) and re-upload.',$2);
7140: next;
7141: }
7142:
7143: $env{'form.embedded_item_'.$i.'.filename'}=$fname;
7144: if ($context eq 'portfolio') {
7145: my $result=
7146: &Apache::lonnet::userfileupload('embedded_item_'.$i,'',
7147: $dirpath.$path);
7148: if ($result !~ m|^/uploaded/|) {
7149: $output .= '<span class="LC_error">'
7150: .&mt('An error occurred ([_1]) while trying to upload [_2] for embedded element [_3].'
7151: ,$result,$orig_uploaded_filename,$env{'form.embedded_orig_'.$i})
7152: .'</span><br />';
7153: next;
7154: } else {
7155: $output .= '<p>'.&mt('Uploaded [_1]','<span class="LC_filename">'.
7156: $path.$fname.'</span>').'</p>';
7157: }
7158: } else {
7159: # Save the file
7160: my $target = $env{'form.embedded_item_'.$i};
7161: my $fullpath = $dir_root.$dirpath.'/'.$path;
7162: my $dest = $fullpath.$fname;
7163: my $url = $url_root.$dirpath.'/'.$path.$fname;
7164: my @parts=split(/\//,$fullpath);
7165: my $count;
7166: my $filepath = $dir_root;
7167: for ($count=4;$count<=$#parts;$count++) {
7168: $filepath .= "/$parts[$count]";
7169: if ((-e $filepath)!=1) {
7170: mkdir($filepath,0770);
7171: }
7172: }
7173: my $fh;
7174: if (!open($fh,'>'.$dest)) {
7175: &Apache::lonnet::logthis('Failed to create '.$dest);
7176: $output .= '<span class="LC_error">'.
7177: &mt('An error occurred while trying to upload [_1] for embedded element [_2].',$orig_uploaded_filename,$env{'form.embedded_orig_'.$i}).
7178: '</span><br />';
7179: } else {
7180: if (!print $fh $env{'form.embedded_item_'.$i}) {
7181: &Apache::lonnet::logthis('Failed to write to '.$dest);
7182: $output .= '<span class="LC_error">'.
7183: &mt('An error occurred while writing the file [_1] for embedded element [_2].',$orig_uploaded_filename,$env{'form.embedded_orig_'.$i}).
7184: '</span><br />';
7185: } else {
7186: if ($context eq 'testbank') {
7187: $output .= &mt('Embedded file uploaded successfully:').
7188: ' <a href="'.$url.'">'.
7189: $orig_uploaded_filename.'</a><br />';
7190: } else {
7191: $output .= '<font size="+2">'.
7192: &mt('View embedded file: [_1]','<a href="'.$url.'">'.
7193: $orig_uploaded_filename.'</a>').'</font><br />';
7194: }
7195: }
7196: close($fh);
7197: }
7198: }
7199: }
7200: return $output;
7201: }
7202:
7203: sub check_for_existing {
7204: my ($path,$fname,$element) = @_;
7205: my ($state,$msg);
7206: if (-d $path.'/'.$fname) {
7207: $state = 'exists';
7208: $msg = &mt('Unable to upload [_1]. A directory by that name was found in [_2].','<span class="LC_filename">'.$fname.'</span>',$path);
7209: } elsif (-e $path.'/'.$fname) {
7210: $state = 'exists';
7211: $msg = &mt('Unable to upload [_1]. A file by that name was found in [_2].','<span class="LC_filename">'.$fname.'</span>',$path);
7212: }
7213: if ($state eq 'exists') {
7214: $msg = '<span class="LC_error">'.$msg.'</span><br />';
7215: }
7216: return ($state,$msg);
7217: }
7218:
7219: sub check_for_upload {
7220: my ($path,$fname,$group,$element,$portfolio_root,$port_path,
7221: $disk_quota,$current_disk_usage,$uname,$udom) = @_;
7222: my $filesize = (length($env{'form.'.$element})) / 1000; #express in k (1024?)
7223: my $getpropath = 1;
7224: my @dir_list = &Apache::lonnet::dirlist($portfolio_root.$path,$udom,$uname,
7225: $getpropath);
7226: my $found_file = 0;
7227: my $locked_file = 0;
7228: foreach my $line (@dir_list) {
7229: my ($file_name)=split(/\&/,$line,2);
7230: if ($file_name eq $fname){
7231: $file_name = $path.$file_name;
7232: if ($group ne '') {
7233: $file_name = $group.$file_name;
7234: }
7235: $found_file = 1;
7236: if (&Apache::lonnet::is_locked($file_name,$udom,$uname) eq 'true') {
7237: $locked_file = 1;
7238: }
7239: }
7240: }
7241: my $getpropath = 1;
7242: if (($current_disk_usage + $filesize) > $disk_quota){
7243: my $msg = '<span class="LC_error">'.
7244: &mt('Unable to upload [_1]. (size = [_2] kilobytes). Disk quota will be exceeded.','<span class="LC_filename">'.$fname.'</span>',$filesize).'</span>'.
7245: '<br />'.&mt('Disk quota is [_1] kilobytes. Your current disk usage is [_2] kilobytes.',$disk_quota,$current_disk_usage);
7246: return ('will_exceed_quota',$msg);
7247: } elsif ($found_file) {
7248: if ($locked_file) {
7249: my $msg = '<span class="LC_error">';
7250: $msg .= &mt('Unable to upload [_1]. A locked file by that name was found in [_2].','<span class="LC_filename">'.$fname.'</span>','<span class="LC_filename">'.$port_path.$env{'form.currentpath'}.'</span>');
7251: $msg .= '</span><br />';
7252: $msg .= &mt('You will be able to rename or delete existing [_1] after a grade has been assigned.','<span class="LC_filename">'.$fname.'</span>');
7253: return ('file_locked',$msg);
7254: } else {
7255: my $msg = '<span class="LC_error">';
7256: $msg .= &mt('Unable to upload [_1]. A file by that name was found in [_2].','<span class="LC_filename">'.$fname.'</span>',$port_path.$env{'form.currentpath'});
7257: $msg .= '</span>';
7258: $msg .= '<br />';
7259: $msg .= &mt('To upload, rename or delete existing [_1] in [_2].','<span class="LC_filename">'.$fname.'</span>', $port_path.$env{'form.currentpath'});
7260: return ('file_exists',$msg);
7261: }
7262: }
7263: }
7264:
7265:
7266: =pod
7267:
7268: =back
7269:
7270: =head1 CSV Upload/Handling functions
7271:
7272: =over 4
7273:
7274: =item * &upfile_store($r)
7275:
7276: Store uploaded file, $r should be the HTTP Request object,
7277: needs $env{'form.upfile'}
7278: returns $datatoken to be put into hidden field
7279:
7280: =cut
7281:
7282: sub upfile_store {
7283: my $r=shift;
7284: $env{'form.upfile'}=~s/\r/\n/gs;
7285: $env{'form.upfile'}=~s/\f/\n/gs;
7286: $env{'form.upfile'}=~s/\n+/\n/gs;
7287: $env{'form.upfile'}=~s/\n+$//gs;
7288:
7289: my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
7290: '_enroll_'.$env{'request.course.id'}.'_'.time.'_'.$$;
7291: {
7292: my $datafile = $r->dir_config('lonDaemons').
7293: '/tmp/'.$datatoken.'.tmp';
7294: if ( open(my $fh,">$datafile") ) {
7295: print $fh $env{'form.upfile'};
7296: close($fh);
7297: }
7298: }
7299: return $datatoken;
7300: }
7301:
7302: =pod
7303:
7304: =item * &load_tmp_file($r)
7305:
7306: Load uploaded file from tmp, $r should be the HTTP Request object,
7307: needs $env{'form.datatoken'},
7308: sets $env{'form.upfile'} to the contents of the file
7309:
7310: =cut
7311:
7312: sub load_tmp_file {
7313: my $r=shift;
7314: my @studentdata=();
7315: {
7316: my $studentfile = $r->dir_config('lonDaemons').
7317: '/tmp/'.$env{'form.datatoken'}.'.tmp';
7318: if ( open(my $fh,"<$studentfile") ) {
7319: @studentdata=<$fh>;
7320: close($fh);
7321: }
7322: }
7323: $env{'form.upfile'}=join('',@studentdata);
7324: }
7325:
7326: =pod
7327:
7328: =item * &upfile_record_sep()
7329:
7330: Separate uploaded file into records
7331: returns array of records,
7332: needs $env{'form.upfile'} and $env{'form.upfiletype'}
7333:
7334: =cut
7335:
7336: sub upfile_record_sep {
7337: if ($env{'form.upfiletype'} eq 'xml') {
7338: } else {
7339: my @records;
7340: foreach my $line (split(/\n/,$env{'form.upfile'})) {
7341: if ($line=~/^\s*$/) { next; }
7342: push(@records,$line);
7343: }
7344: return @records;
7345: }
7346: }
7347:
7348: =pod
7349:
7350: =item * &record_sep($record)
7351:
7352: Separate a record into fields $record should be an item from the upfile_record_sep(), needs $env{'form.upfiletype'}
7353:
7354: =cut
7355:
7356: sub takeleft {
7357: my $index=shift;
7358: return substr('0000'.$index,-4,4);
7359: }
7360:
7361: sub record_sep {
7362: my $record=shift;
7363: my %components=();
7364: if ($env{'form.upfiletype'} eq 'xml') {
7365: } elsif ($env{'form.upfiletype'} eq 'space') {
7366: my $i=0;
7367: foreach my $field (split(/\s+/,$record)) {
7368: $field=~s/^(\"|\')//;
7369: $field=~s/(\"|\')$//;
7370: $components{&takeleft($i)}=$field;
7371: $i++;
7372: }
7373: } elsif ($env{'form.upfiletype'} eq 'tab') {
7374: my $i=0;
7375: foreach my $field (split(/\t/,$record)) {
7376: $field=~s/^(\"|\')//;
7377: $field=~s/(\"|\')$//;
7378: $components{&takeleft($i)}=$field;
7379: $i++;
7380: }
7381: } else {
7382: my $separator=',';
7383: if ($env{'form.upfiletype'} eq 'semisv') {
7384: $separator=';';
7385: }
7386: my $i=0;
7387: # the character we are looking for to indicate the end of a quote or a record
7388: my $looking_for=$separator;
7389: # do not add the characters to the fields
7390: my $ignore=0;
7391: # we just encountered a separator (or the beginning of the record)
7392: my $just_found_separator=1;
7393: # store the field we are working on here
7394: my $field='';
7395: # work our way through all characters in record
7396: foreach my $character ($record=~/(.)/g) {
7397: if ($character eq $looking_for) {
7398: if ($character ne $separator) {
7399: # Found the end of a quote, again looking for separator
7400: $looking_for=$separator;
7401: $ignore=1;
7402: } else {
7403: # Found a separator, store away what we got
7404: $components{&takeleft($i)}=$field;
7405: $i++;
7406: $just_found_separator=1;
7407: $ignore=0;
7408: $field='';
7409: }
7410: next;
7411: }
7412: # single or double quotation marks after a separator indicate beginning of a quote
7413: # we are now looking for the end of the quote and need to ignore separators
7414: if ((($character eq '"') || ($character eq "'")) && ($just_found_separator)) {
7415: $looking_for=$character;
7416: next;
7417: }
7418: # ignore would be true after we reached the end of a quote
7419: if ($ignore) { next; }
7420: if (($just_found_separator) && ($character=~/\s/)) { next; }
7421: $field.=$character;
7422: $just_found_separator=0;
7423: }
7424: # catch the very last entry, since we never encountered the separator
7425: $components{&takeleft($i)}=$field;
7426: }
7427: return %components;
7428: }
7429:
7430: ######################################################
7431: ######################################################
7432:
7433: =pod
7434:
7435: =item * &upfile_select_html()
7436:
7437: Return HTML code to select a file from the users machine and specify
7438: the file type.
7439:
7440: =cut
7441:
7442: ######################################################
7443: ######################################################
7444: sub upfile_select_html {
7445: my %Types = (
7446: csv => &mt('CSV (comma separated values, spreadsheet)'),
7447: semisv => &mt('Semicolon separated values'),
7448: space => &mt('Space separated'),
7449: tab => &mt('Tabulator separated'),
7450: # xml => &mt('HTML/XML'),
7451: );
7452: my $Str = '<input type="file" name="upfile" size="50" />'.
7453: '<br />Type: <select name="upfiletype">';
7454: foreach my $type (sort(keys(%Types))) {
7455: $Str .= '<option value="'.$type.'" >'.$Types{$type}."</option>\n";
7456: }
7457: $Str .= "</select>\n";
7458: return $Str;
7459: }
7460:
7461: sub get_samples {
7462: my ($records,$toget) = @_;
7463: my @samples=({});
7464: my $got=0;
7465: foreach my $rec (@$records) {
7466: my %temp = &record_sep($rec);
7467: if (! grep(/\S/, values(%temp))) { next; }
7468: if (%temp) {
7469: $samples[$got]=\%temp;
7470: $got++;
7471: if ($got == $toget) { last; }
7472: }
7473: }
7474: return \@samples;
7475: }
7476:
7477: ######################################################
7478: ######################################################
7479:
7480: =pod
7481:
7482: =item * &csv_print_samples($r,$records)
7483:
7484: Prints a table of sample values from each column uploaded $r is an
7485: Apache Request ref, $records is an arrayref from
7486: &Apache::loncommon::upfile_record_sep
7487:
7488: =cut
7489:
7490: ######################################################
7491: ######################################################
7492: sub csv_print_samples {
7493: my ($r,$records) = @_;
7494: my $samples = &get_samples($records,5);
7495:
7496: $r->print(&mt('Samples').'<br />'.&start_data_table().
7497: &start_data_table_header_row());
7498: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
7499: $r->print('<th>'.&mt('Column [_1]',($sample+1)).'</th>'); }
7500: $r->print(&end_data_table_header_row());
7501: foreach my $hash (@$samples) {
7502: $r->print(&start_data_table_row());
7503: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
7504: $r->print('<td>');
7505: if (defined($$hash{$sample})) { $r->print($$hash{$sample}); }
7506: $r->print('</td>');
7507: }
7508: $r->print(&end_data_table_row());
7509: }
7510: $r->print(&end_data_table().'<br />'."\n");
7511: }
7512:
7513: ######################################################
7514: ######################################################
7515:
7516: =pod
7517:
7518: =item * &csv_print_select_table($r,$records,$d)
7519:
7520: Prints a table to create associations between values and table columns.
7521:
7522: $r is an Apache Request ref,
7523: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
7524: $d is an array of 2 element arrays (internal name, displayed name,defaultcol)
7525:
7526: =cut
7527:
7528: ######################################################
7529: ######################################################
7530: sub csv_print_select_table {
7531: my ($r,$records,$d) = @_;
7532: my $i=0;
7533: my $samples = &get_samples($records,1);
7534: $r->print(&mt('Associate columns with student attributes.')."\n".
7535: &start_data_table().&start_data_table_header_row().
7536: '<th>'.&mt('Attribute').'</th>'.
7537: '<th>'.&mt('Column').'</th>'.
7538: &end_data_table_header_row()."\n");
7539: foreach my $array_ref (@$d) {
7540: my ($value,$display,$defaultcol)=@{ $array_ref };
7541: $r->print(&start_data_table_row().'<tr><td>'.$display.'</td>');
7542:
7543: $r->print('<td><select name=f'.$i.
7544: ' onchange="javascript:flip(this.form,'.$i.');">');
7545: $r->print('<option value="none"></option>');
7546: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
7547: $r->print('<option value="'.$sample.'"'.
7548: ($sample eq $defaultcol ? ' selected="selected" ' : '').
7549: '>'.&mt('Column [_1]',($sample+1)).'</option>');
7550: }
7551: $r->print('</select></td>'.&end_data_table_row()."\n");
7552: $i++;
7553: }
7554: $r->print(&end_data_table());
7555: $i--;
7556: return $i;
7557: }
7558:
7559: ######################################################
7560: ######################################################
7561:
7562: =pod
7563:
7564: =item * &csv_samples_select_table($r,$records,$d)
7565:
7566: Prints a table of sample values from the upload and can make associate samples to internal names.
7567:
7568: $r is an Apache Request ref,
7569: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
7570: $d is an array of 2 element arrays (internal name, displayed name)
7571:
7572: =cut
7573:
7574: ######################################################
7575: ######################################################
7576: sub csv_samples_select_table {
7577: my ($r,$records,$d) = @_;
7578: my $i=0;
7579: #
7580: my $max_samples = 5;
7581: my $samples = &get_samples($records,$max_samples);
7582: $r->print(&start_data_table().
7583: &start_data_table_header_row().'<th>'.
7584: &mt('Field').'</th><th>'.&mt('Samples').'</th>'.
7585: &end_data_table_header_row());
7586:
7587: foreach my $key (sort(keys(%{ $samples->[0] }))) {
7588: $r->print(&start_data_table_row().'<td><select name="f'.$i.'"'.
7589: ' onchange="javascript:flip(this.form,'.$i.');">');
7590: foreach my $option (@$d) {
7591: my ($value,$display,$defaultcol)=@{ $option };
7592: $r->print('<option value="'.$value.'"'.
7593: ($i eq $defaultcol ? ' selected="selected" ':'').'>'.
7594: $display.'</option>');
7595: }
7596: $r->print('</select></td><td>');
7597: foreach my $line (0..($max_samples-1)) {
7598: if (defined($samples->[$line]{$key})) {
7599: $r->print($samples->[$line]{$key}."<br />\n");
7600: }
7601: }
7602: $r->print('</td>'.&end_data_table_row());
7603: $i++;
7604: }
7605: $r->print(&end_data_table());
7606: $i--;
7607: return($i);
7608: }
7609:
7610: ######################################################
7611: ######################################################
7612:
7613: =pod
7614:
7615: =item * &clean_excel_name($name)
7616:
7617: Returns a replacement for $name which does not contain any illegal characters.
7618:
7619: =cut
7620:
7621: ######################################################
7622: ######################################################
7623: sub clean_excel_name {
7624: my ($name) = @_;
7625: $name =~ s/[:\*\?\/\\]//g;
7626: if (length($name) > 31) {
7627: $name = substr($name,0,31);
7628: }
7629: return $name;
7630: }
7631:
7632: =pod
7633:
7634: =item * &check_if_partid_hidden($id,$symb,$udom,$uname)
7635:
7636: Returns either 1 or undef
7637:
7638: 1 if the part is to be hidden, undef if it is to be shown
7639:
7640: Arguments are:
7641:
7642: $id the id of the part to be checked
7643: $symb, optional the symb of the resource to check
7644: $udom, optional the domain of the user to check for
7645: $uname, optional the username of the user to check for
7646:
7647: =cut
7648:
7649: sub check_if_partid_hidden {
7650: my ($id,$symb,$udom,$uname) = @_;
7651: my $hiddenparts=&Apache::lonnet::EXT('resource.0.hiddenparts',
7652: $symb,$udom,$uname);
7653: my $truth=1;
7654: #if the string starts with !, then the list is the list to show not hide
7655: if ($hiddenparts=~s/^\s*!//) { $truth=undef; }
7656: my @hiddenlist=split(/,/,$hiddenparts);
7657: foreach my $checkid (@hiddenlist) {
7658: if ($checkid =~ /^\s*\Q$id\E\s*$/) { return $truth; }
7659: }
7660: return !$truth;
7661: }
7662:
7663:
7664: ############################################################
7665: ############################################################
7666:
7667: =pod
7668:
7669: =back
7670:
7671: =head1 cgi-bin script and graphing routines
7672:
7673: =over 4
7674:
7675: =item * &get_cgi_id()
7676:
7677: Inputs: none
7678:
7679: Returns an id which can be used to pass environment variables
7680: to various cgi-bin scripts. These environment variables will
7681: be removed from the users environment after a given time by
7682: the routine &Apache::lonnet::transfer_profile_to_env.
7683:
7684: =cut
7685:
7686: ############################################################
7687: ############################################################
7688: my $uniq=0;
7689: sub get_cgi_id {
7690: $uniq=($uniq+1)%100000;
7691: return (time.'_'.$$.'_'.$uniq);
7692: }
7693:
7694: ############################################################
7695: ############################################################
7696:
7697: =pod
7698:
7699: =item * &DrawBarGraph()
7700:
7701: Facilitates the plotting of data in a (stacked) bar graph.
7702: Puts plot definition data into the users environment in order for
7703: graph.png to plot it. Returns an <img> tag for the plot.
7704: The bars on the plot are labeled '1','2',...,'n'.
7705:
7706: Inputs:
7707:
7708: =over 4
7709:
7710: =item $Title: string, the title of the plot
7711:
7712: =item $xlabel: string, text describing the X-axis of the plot
7713:
7714: =item $ylabel: string, text describing the Y-axis of the plot
7715:
7716: =item $Max: scalar, the maximum Y value to use in the plot
7717: If $Max is < any data point, the graph will not be rendered.
7718:
7719: =item $colors: array ref holding the colors to be used for the data sets when
7720: they are plotted. If undefined, default values will be used.
7721:
7722: =item $labels: array ref holding the labels to use on the x-axis for the bars.
7723:
7724: =item @Values: An array of array references. Each array reference holds data
7725: to be plotted in a stacked bar chart.
7726:
7727: =item If the final element of @Values is a hash reference the key/value
7728: pairs will be added to the graph definition.
7729:
7730: =back
7731:
7732: Returns:
7733:
7734: An <img> tag which references graph.png and the appropriate identifying
7735: information for the plot.
7736:
7737: =cut
7738:
7739: ############################################################
7740: ############################################################
7741: sub DrawBarGraph {
7742: my ($Title,$xlabel,$ylabel,$Max,$colors,$labels,@Values)=@_;
7743: #
7744: if (! defined($colors)) {
7745: $colors = ['#33ff00',
7746: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
7747: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
7748: ];
7749: }
7750: my $extra_settings = {};
7751: if (ref($Values[-1]) eq 'HASH') {
7752: $extra_settings = pop(@Values);
7753: }
7754: #
7755: my $identifier = &get_cgi_id();
7756: my $id = 'cgi.'.$identifier;
7757: if (! @Values || ref($Values[0]) ne 'ARRAY') {
7758: return '';
7759: }
7760: #
7761: my @Labels;
7762: if (defined($labels)) {
7763: @Labels = @$labels;
7764: } else {
7765: for (my $i=0;$i<@{$Values[0]};$i++) {
7766: push (@Labels,$i+1);
7767: }
7768: }
7769: #
7770: my $NumBars = scalar(@{$Values[0]});
7771: if ($NumBars < scalar(@Labels)) { $NumBars = scalar(@Labels); }
7772: my %ValuesHash;
7773: my $NumSets=1;
7774: foreach my $array (@Values) {
7775: next if (! ref($array));
7776: $ValuesHash{$id.'.data.'.$NumSets++} =
7777: join(',',@$array);
7778: }
7779: #
7780: my ($height,$width,$xskip,$bar_width) = (200,120,1,15);
7781: if ($NumBars < 3) {
7782: $width = 120+$NumBars*32;
7783: $xskip = 1;
7784: $bar_width = 30;
7785: } elsif ($NumBars < 5) {
7786: $width = 120+$NumBars*20;
7787: $xskip = 1;
7788: $bar_width = 20;
7789: } elsif ($NumBars < 10) {
7790: $width = 120+$NumBars*15;
7791: $xskip = 1;
7792: $bar_width = 15;
7793: } elsif ($NumBars <= 25) {
7794: $width = 120+$NumBars*11;
7795: $xskip = 5;
7796: $bar_width = 8;
7797: } elsif ($NumBars <= 50) {
7798: $width = 120+$NumBars*8;
7799: $xskip = 5;
7800: $bar_width = 4;
7801: } else {
7802: $width = 120+$NumBars*8;
7803: $xskip = 5;
7804: $bar_width = 4;
7805: }
7806: #
7807: $Max = 1 if ($Max < 1);
7808: if ( int($Max) < $Max ) {
7809: $Max++;
7810: $Max = int($Max);
7811: }
7812: $Title = '' if (! defined($Title));
7813: $xlabel = '' if (! defined($xlabel));
7814: $ylabel = '' if (! defined($ylabel));
7815: $ValuesHash{$id.'.title'} = &escape($Title);
7816: $ValuesHash{$id.'.xlabel'} = &escape($xlabel);
7817: $ValuesHash{$id.'.ylabel'} = &escape($ylabel);
7818: $ValuesHash{$id.'.y_max_value'} = $Max;
7819: $ValuesHash{$id.'.NumBars'} = $NumBars;
7820: $ValuesHash{$id.'.NumSets'} = $NumSets;
7821: $ValuesHash{$id.'.PlotType'} = 'bar';
7822: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
7823: $ValuesHash{$id.'.height'} = $height;
7824: $ValuesHash{$id.'.width'} = $width;
7825: $ValuesHash{$id.'.xskip'} = $xskip;
7826: $ValuesHash{$id.'.bar_width'} = $bar_width;
7827: $ValuesHash{$id.'.labels'} = join(',',@Labels);
7828: #
7829: # Deal with other parameters
7830: while (my ($key,$value) = each(%$extra_settings)) {
7831: $ValuesHash{$id.'.'.$key} = $value;
7832: }
7833: #
7834: &Apache::lonnet::appenv(\%ValuesHash);
7835: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
7836: }
7837:
7838: ############################################################
7839: ############################################################
7840:
7841: =pod
7842:
7843: =item * &DrawXYGraph()
7844:
7845: Facilitates the plotting of data in an XY graph.
7846: Puts plot definition data into the users environment in order for
7847: graph.png to plot it. Returns an <img> tag for the plot.
7848:
7849: Inputs:
7850:
7851: =over 4
7852:
7853: =item $Title: string, the title of the plot
7854:
7855: =item $xlabel: string, text describing the X-axis of the plot
7856:
7857: =item $ylabel: string, text describing the Y-axis of the plot
7858:
7859: =item $Max: scalar, the maximum Y value to use in the plot
7860: If $Max is < any data point, the graph will not be rendered.
7861:
7862: =item $colors: Array ref containing the hex color codes for the data to be
7863: plotted in. If undefined, default values will be used.
7864:
7865: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
7866:
7867: =item $Ydata: Array ref containing Array refs.
7868: Each of the contained arrays will be plotted as a separate curve.
7869:
7870: =item %Values: hash indicating or overriding any default values which are
7871: passed to graph.png.
7872: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
7873:
7874: =back
7875:
7876: Returns:
7877:
7878: An <img> tag which references graph.png and the appropriate identifying
7879: information for the plot.
7880:
7881: =cut
7882:
7883: ############################################################
7884: ############################################################
7885: sub DrawXYGraph {
7886: my ($Title,$xlabel,$ylabel,$Max,$colors,$Xlabels,$Ydata,%Values)=@_;
7887: #
7888: # Create the identifier for the graph
7889: my $identifier = &get_cgi_id();
7890: my $id = 'cgi.'.$identifier;
7891: #
7892: $Title = '' if (! defined($Title));
7893: $xlabel = '' if (! defined($xlabel));
7894: $ylabel = '' if (! defined($ylabel));
7895: my %ValuesHash =
7896: (
7897: $id.'.title' => &escape($Title),
7898: $id.'.xlabel' => &escape($xlabel),
7899: $id.'.ylabel' => &escape($ylabel),
7900: $id.'.y_max_value'=> $Max,
7901: $id.'.labels' => join(',',@$Xlabels),
7902: $id.'.PlotType' => 'XY',
7903: );
7904: #
7905: if (defined($colors) && ref($colors) eq 'ARRAY') {
7906: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
7907: }
7908: #
7909: if (! ref($Ydata) || ref($Ydata) ne 'ARRAY') {
7910: return '';
7911: }
7912: my $NumSets=1;
7913: foreach my $array (@{$Ydata}){
7914: next if (! ref($array));
7915: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
7916: }
7917: $ValuesHash{$id.'.NumSets'} = $NumSets-1;
7918: #
7919: # Deal with other parameters
7920: while (my ($key,$value) = each(%Values)) {
7921: $ValuesHash{$id.'.'.$key} = $value;
7922: }
7923: #
7924: &Apache::lonnet::appenv(\%ValuesHash);
7925: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
7926: }
7927:
7928: ############################################################
7929: ############################################################
7930:
7931: =pod
7932:
7933: =item * &DrawXYYGraph()
7934:
7935: Facilitates the plotting of data in an XY graph with two Y axes.
7936: Puts plot definition data into the users environment in order for
7937: graph.png to plot it. Returns an <img> tag for the plot.
7938:
7939: Inputs:
7940:
7941: =over 4
7942:
7943: =item $Title: string, the title of the plot
7944:
7945: =item $xlabel: string, text describing the X-axis of the plot
7946:
7947: =item $ylabel: string, text describing the Y-axis of the plot
7948:
7949: =item $colors: Array ref containing the hex color codes for the data to be
7950: plotted in. If undefined, default values will be used.
7951:
7952: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
7953:
7954: =item $Ydata1: The first data set
7955:
7956: =item $Min1: The minimum value of the left Y-axis
7957:
7958: =item $Max1: The maximum value of the left Y-axis
7959:
7960: =item $Ydata2: The second data set
7961:
7962: =item $Min2: The minimum value of the right Y-axis
7963:
7964: =item $Max2: The maximum value of the left Y-axis
7965:
7966: =item %Values: hash indicating or overriding any default values which are
7967: passed to graph.png.
7968: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
7969:
7970: =back
7971:
7972: Returns:
7973:
7974: An <img> tag which references graph.png and the appropriate identifying
7975: information for the plot.
7976:
7977: =cut
7978:
7979: ############################################################
7980: ############################################################
7981: sub DrawXYYGraph {
7982: my ($Title,$xlabel,$ylabel,$colors,$Xlabels,$Ydata1,$Min1,$Max1,
7983: $Ydata2,$Min2,$Max2,%Values)=@_;
7984: #
7985: # Create the identifier for the graph
7986: my $identifier = &get_cgi_id();
7987: my $id = 'cgi.'.$identifier;
7988: #
7989: $Title = '' if (! defined($Title));
7990: $xlabel = '' if (! defined($xlabel));
7991: $ylabel = '' if (! defined($ylabel));
7992: my %ValuesHash =
7993: (
7994: $id.'.title' => &escape($Title),
7995: $id.'.xlabel' => &escape($xlabel),
7996: $id.'.ylabel' => &escape($ylabel),
7997: $id.'.labels' => join(',',@$Xlabels),
7998: $id.'.PlotType' => 'XY',
7999: $id.'.NumSets' => 2,
8000: $id.'.two_axes' => 1,
8001: $id.'.y1_max_value' => $Max1,
8002: $id.'.y1_min_value' => $Min1,
8003: $id.'.y2_max_value' => $Max2,
8004: $id.'.y2_min_value' => $Min2,
8005: );
8006: #
8007: if (defined($colors) && ref($colors) eq 'ARRAY') {
8008: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
8009: }
8010: #
8011: if (! ref($Ydata1) || ref($Ydata1) ne 'ARRAY' ||
8012: ! ref($Ydata2) || ref($Ydata2) ne 'ARRAY'){
8013: return '';
8014: }
8015: my $NumSets=1;
8016: foreach my $array ($Ydata1,$Ydata2){
8017: next if (! ref($array));
8018: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
8019: }
8020: #
8021: # Deal with other parameters
8022: while (my ($key,$value) = each(%Values)) {
8023: $ValuesHash{$id.'.'.$key} = $value;
8024: }
8025: #
8026: &Apache::lonnet::appenv(\%ValuesHash);
8027: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
8028: }
8029:
8030: ############################################################
8031: ############################################################
8032:
8033: =pod
8034:
8035: =back
8036:
8037: =head1 Statistics helper routines?
8038:
8039: Bad place for them but what the hell.
8040:
8041: =over 4
8042:
8043: =item * &chartlink()
8044:
8045: Returns a link to the chart for a specific student.
8046:
8047: Inputs:
8048:
8049: =over 4
8050:
8051: =item $linktext: The text of the link
8052:
8053: =item $sname: The students username
8054:
8055: =item $sdomain: The students domain
8056:
8057: =back
8058:
8059: =back
8060:
8061: =cut
8062:
8063: ############################################################
8064: ############################################################
8065: sub chartlink {
8066: my ($linktext, $sname, $sdomain) = @_;
8067: my $link = '<a href="/adm/statistics?reportSelected=student_assessment'.
8068: '&SelectedStudent='.&escape($sname.':'.$sdomain).
8069: '&chartoutputmode='.HTML::Entities::encode('html, with all links').
8070: '">'.$linktext.'</a>';
8071: }
8072:
8073: #######################################################
8074: #######################################################
8075:
8076: =pod
8077:
8078: =head1 Course Environment Routines
8079:
8080: =over 4
8081:
8082: =item * &restore_course_settings()
8083:
8084: =item * &store_course_settings()
8085:
8086: Restores/Store indicated form parameters from the course environment.
8087: Will not overwrite existing values of the form parameters.
8088:
8089: Inputs:
8090: a scalar describing the data (e.g. 'chart', 'problem_analysis')
8091:
8092: a hash ref describing the data to be stored. For example:
8093:
8094: %Save_Parameters = ('Status' => 'scalar',
8095: 'chartoutputmode' => 'scalar',
8096: 'chartoutputdata' => 'scalar',
8097: 'Section' => 'array',
8098: 'Group' => 'array',
8099: 'StudentData' => 'array',
8100: 'Maps' => 'array');
8101:
8102: Returns: both routines return nothing
8103:
8104: =back
8105:
8106: =cut
8107:
8108: #######################################################
8109: #######################################################
8110: sub store_course_settings {
8111: return &store_settings($env{'request.course.id'},@_);
8112: }
8113:
8114: sub store_settings {
8115: # save to the environment
8116: # appenv the same items, just to be safe
8117: my $udom = $env{'user.domain'};
8118: my $uname = $env{'user.name'};
8119: my ($context,$prefix,$Settings) = @_;
8120: my %SaveHash;
8121: my %AppHash;
8122: while (my ($setting,$type) = each(%$Settings)) {
8123: my $basename = join('.','internal',$context,$prefix,$setting);
8124: my $envname = 'environment.'.$basename;
8125: if (exists($env{'form.'.$setting})) {
8126: # Save this value away
8127: if ($type eq 'scalar' &&
8128: (! exists($env{$envname}) ||
8129: $env{$envname} ne $env{'form.'.$setting})) {
8130: $SaveHash{$basename} = $env{'form.'.$setting};
8131: $AppHash{$envname} = $env{'form.'.$setting};
8132: } elsif ($type eq 'array') {
8133: my $stored_form;
8134: if (ref($env{'form.'.$setting})) {
8135: $stored_form = join(',',
8136: map {
8137: &escape($_);
8138: } sort(@{$env{'form.'.$setting}}));
8139: } else {
8140: $stored_form =
8141: &escape($env{'form.'.$setting});
8142: }
8143: # Determine if the array contents are the same.
8144: if ($stored_form ne $env{$envname}) {
8145: $SaveHash{$basename} = $stored_form;
8146: $AppHash{$envname} = $stored_form;
8147: }
8148: }
8149: }
8150: }
8151: my $put_result = &Apache::lonnet::put('environment',\%SaveHash,
8152: $udom,$uname);
8153: if ($put_result !~ /^(ok|delayed)/) {
8154: &Apache::lonnet::logthis('unable to save form parameters, '.
8155: 'got error:'.$put_result);
8156: }
8157: # Make sure these settings stick around in this session, too
8158: &Apache::lonnet::appenv(\%AppHash);
8159: return;
8160: }
8161:
8162: sub restore_course_settings {
8163: return &restore_settings($env{'request.course.id'},@_);
8164: }
8165:
8166: sub restore_settings {
8167: my ($context,$prefix,$Settings) = @_;
8168: while (my ($setting,$type) = each(%$Settings)) {
8169: next if (exists($env{'form.'.$setting}));
8170: my $envname = 'environment.internal.'.$context.'.'.$prefix.
8171: '.'.$setting;
8172: if (exists($env{$envname})) {
8173: if ($type eq 'scalar') {
8174: $env{'form.'.$setting} = $env{$envname};
8175: } elsif ($type eq 'array') {
8176: $env{'form.'.$setting} = [
8177: map {
8178: &unescape($_);
8179: } split(',',$env{$envname})
8180: ];
8181: }
8182: }
8183: }
8184: }
8185:
8186: #######################################################
8187: #######################################################
8188:
8189: =pod
8190:
8191: =head1 Domain E-mail Routines
8192:
8193: =over 4
8194:
8195: =item * &build_recipient_list()
8196:
8197: Build recipient lists for three types of e-mail:
8198: (a) Error Reports, (b) Package Updates, (c) Help requests, generated by
8199: lonerrorhandler.pm, CHECKRPMS and lonsupportreq.pm respectively.
8200:
8201: Inputs:
8202: defmail (scalar - email address of default recipient),
8203: mailing type (scalar - errormail, packagesmail, or helpdeskmail),
8204: defdom (domain for which to retrieve configuration settings),
8205: origmail (scalar - email address of recipient from loncapa.conf,
8206: i.e., predates configuration by DC via domainprefs.pm
8207:
8208: Returns: comma separated list of addresses to which to send e-mail.
8209:
8210: =back
8211:
8212: =cut
8213:
8214: ############################################################
8215: ############################################################
8216: sub build_recipient_list {
8217: my ($defmail,$mailing,$defdom,$origmail) = @_;
8218: my @recipients;
8219: my $otheremails;
8220: my %domconfig =
8221: &Apache::lonnet::get_dom('configuration',['contacts'],$defdom);
8222: if (ref($domconfig{'contacts'}) eq 'HASH') {
8223: if (ref($domconfig{'contacts'}{$mailing}) eq 'HASH') {
8224: my @contacts = ('adminemail','supportemail');
8225: foreach my $item (@contacts) {
8226: if ($domconfig{'contacts'}{$mailing}{$item}) {
8227: my $addr = $domconfig{'contacts'}{$item};
8228: if (!grep(/^\Q$addr\E$/,@recipients)) {
8229: push(@recipients,$addr);
8230: }
8231: }
8232: $otheremails = $domconfig{'contacts'}{$mailing}{'others'};
8233: }
8234: }
8235: } elsif ($origmail ne '') {
8236: push(@recipients,$origmail);
8237: }
8238: if ($defmail ne '') {
8239: push(@recipients,$defmail);
8240: }
8241: if ($otheremails) {
8242: my @others;
8243: if ($otheremails =~ /,/) {
8244: @others = split(/,/,$otheremails);
8245: } else {
8246: push(@others,$otheremails);
8247: }
8248: foreach my $addr (@others) {
8249: if (!grep(/^\Q$addr\E$/,@recipients)) {
8250: push(@recipients,$addr);
8251: }
8252: }
8253: }
8254: my $recipientlist = join(',',@recipients);
8255: return $recipientlist;
8256: }
8257:
8258: ############################################################
8259: ############################################################
8260:
8261: =pod
8262:
8263: =head1 Course Catalog Routines
8264:
8265: =over 4
8266:
8267: =item * &gather_categories()
8268:
8269: Converts category definitions - keys of categories hash stored in
8270: coursecategories in configuration.db on the primary library server in a
8271: domain - to an array. Also generates javascript and idx hash used to
8272: generate Domain Coordinator interface for editing Course Categories.
8273:
8274: Inputs:
8275:
8276: categories (reference to hash of category definitions).
8277:
8278: cats (reference to array of arrays/hashes which encapsulates hierarchy of
8279: categories and subcategories).
8280:
8281: idx (reference to hash of counters used in Domain Coordinator interface for
8282: editing Course Categories).
8283:
8284: jsarray (reference to array of categories used to create Javascript arrays for
8285: Domain Coordinator interface for editing Course Categories).
8286:
8287: Returns: nothing
8288:
8289: Side effects: populates cats, idx and jsarray.
8290:
8291: =cut
8292:
8293: sub gather_categories {
8294: my ($categories,$cats,$idx,$jsarray) = @_;
8295: my %counters;
8296: my $num = 0;
8297: foreach my $item (keys(%{$categories})) {
8298: my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$item);
8299: if ($container eq '' && $depth == 0) {
8300: $cats->[$depth][$categories->{$item}] = $cat;
8301: } else {
8302: $cats->[$depth]{$container}[$categories->{$item}] = $cat;
8303: }
8304: my ($escitem,$tail) = split(/:/,$item,2);
8305: if ($counters{$tail} eq '') {
8306: $counters{$tail} = $num;
8307: $num ++;
8308: }
8309: if (ref($idx) eq 'HASH') {
8310: $idx->{$item} = $counters{$tail};
8311: }
8312: if (ref($jsarray) eq 'ARRAY') {
8313: push(@{$jsarray->[$counters{$tail}]},$item);
8314: }
8315: }
8316: return;
8317: }
8318:
8319: =pod
8320:
8321: =item * &extract_categories()
8322:
8323: Used to generate breadcrumb trails for course categories.
8324:
8325: Inputs:
8326:
8327: categories (reference to hash of category definitions).
8328:
8329: cats (reference to array of arrays/hashes which encapsulates hierarchy of
8330: categories and subcategories).
8331:
8332: trails (reference to array of breacrumb trails for each category).
8333:
8334: allitems (reference to hash - key is category key
8335: (format: escaped(name):escaped(parent category):depth in hierarchy).
8336:
8337: idx (reference to hash of counters used in Domain Coordinator interface for
8338: editing Course Categories).
8339:
8340: jsarray (reference to array of categories used to create Javascript arrays for
8341: Domain Coordinator interface for editing Course Categories).
8342:
8343: Returns: nothing
8344:
8345: Side effects: populates trails and allitems hash references.
8346:
8347: =cut
8348:
8349: sub extract_categories {
8350: my ($categories,$cats,$trails,$allitems,$idx,$jsarray) = @_;
8351: if (ref($categories) eq 'HASH') {
8352: &gather_categories($categories,$cats,$idx,$jsarray);
8353: if (ref($cats->[0]) eq 'ARRAY') {
8354: for (my $i=0; $i<@{$cats->[0]}; $i++) {
8355: my $name = $cats->[0][$i];
8356: my $item = &escape($name).'::0';
8357: my $trailstr;
8358: if ($name eq 'instcode') {
8359: $trailstr = &mt('Official courses (with institutional codes)');
8360: } else {
8361: $trailstr = $name;
8362: }
8363: if ($allitems->{$item} eq '') {
8364: push(@{$trails},$trailstr);
8365: $allitems->{$item} = scalar(@{$trails})-1;
8366: }
8367: my @parents = ($name);
8368: if (ref($cats->[1]{$name}) eq 'ARRAY') {
8369: for (my $j=0; $j<@{$cats->[1]{$name}}; $j++) {
8370: my $category = $cats->[1]{$name}[$j];
8371: &recurse_categories($cats,2,$category,$trails,$allitems,\@parents);
8372: }
8373: }
8374: }
8375: }
8376: }
8377: return;
8378: }
8379:
8380: =pod
8381:
8382: =item *&recurse_categories()
8383:
8384: Recursively used to generate breadcrumb trails for course categories.
8385:
8386: Inputs:
8387:
8388: cats (reference to array of arrays/hashes which encapsulates hierarchy of
8389: categories and subcategories).
8390:
8391: depth (current depth in hierarchy of categories and sub-categories - 0 indexed).
8392:
8393: category (current course category, for which breadcrumb trail is being generated).
8394:
8395: trails (reference to array of breadcrumb trails for each category).
8396:
8397: allitems (reference to hash - key is category key
8398: (format: escaped(name):escaped(parent category):depth in hierarchy).
8399:
8400: parents (array containing containers directories for current category,
8401: back to top level).
8402:
8403: Returns: nothing
8404:
8405: Side effects: populates trails and allitems hash references
8406:
8407: =cut
8408:
8409: sub recurse_categories {
8410: my ($cats,$depth,$category,$trails,$allitems,$parents) = @_;
8411: my $shallower = $depth - 1;
8412: if (ref($cats->[$depth]{$category}) eq 'ARRAY') {
8413: for (my $k=0; $k<@{$cats->[$depth]{$category}}; $k++) {
8414: my $name = $cats->[$depth]{$category}[$k];
8415: my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower;
8416: my $trailstr = join(' -> ',(@{$parents},$category));
8417: if ($allitems->{$item} eq '') {
8418: push(@{$trails},$trailstr);
8419: $allitems->{$item} = scalar(@{$trails})-1;
8420: }
8421: my $deeper = $depth+1;
8422: push(@{$parents},$category);
8423: &recurse_categories($cats,$deeper,$name,$trails,$allitems,$parents);
8424: pop(@{$parents});
8425: }
8426: } else {
8427: my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower;
8428: my $trailstr = join(' -> ',(@{$parents},$category));
8429: if ($allitems->{$item} eq '') {
8430: push(@{$trails},$trailstr);
8431: $allitems->{$item} = scalar(@{$trails})-1;
8432: }
8433: }
8434: return;
8435: }
8436:
8437: =pod
8438:
8439: =item *&assign_categories_table()
8440:
8441: Create a datatable for display of hierarchical categories in a domain,
8442: with checkboxes to allow a course to be categorized.
8443:
8444: Inputs:
8445:
8446: cathash - reference to hash of categories defined for the domain (from
8447: configuration.db)
8448:
8449: currcat - scalar with an & separated list of categories assigned to a course.
8450:
8451: Returns: $output (markup to be displayed)
8452:
8453: =cut
8454:
8455: sub assign_categories_table {
8456: my ($cathash,$currcat) = @_;
8457: my $output;
8458: if (ref($cathash) eq 'HASH') {
8459: my (@cats,@trails,%allitems,%idx,@jsarray,@path,$maxdepth);
8460: &extract_categories($cathash,\@cats,\@trails,\%allitems,\%idx,\@jsarray);
8461: $maxdepth = scalar(@cats);
8462: if (@cats > 0) {
8463: my $itemcount = 0;
8464: if (ref($cats[0]) eq 'ARRAY') {
8465: $output = &Apache::loncommon::start_data_table();
8466: my @currcategories;
8467: if ($currcat ne '') {
8468: @currcategories = split('&',$currcat);
8469: }
8470: for (my $i=0; $i<@{$cats[0]}; $i++) {
8471: my $parent = $cats[0][$i];
8472: my $css_class = $itemcount%2?' class="LC_odd_row"':'';
8473: next if ($parent eq 'instcode');
8474: my $item = &escape($parent).'::0';
8475: my $checked = '';
8476: if (@currcategories > 0) {
8477: if (grep(/^\Q$item\E$/,@currcategories)) {
8478: $checked = ' checked="checked" ';
8479: }
8480: }
8481: $output .= '<tr '.$css_class.'><td><span class="LC_nobreak">'
8482: .'<input type="checkbox" name="usecategory" value="'.
8483: $item.'"'.$checked.' />'.&escape($parent).'</span></td>';
8484: my $depth = 1;
8485: push(@path,$parent);
8486: $output .= &assign_category_rows($itemcount,\@cats,$depth,$parent,\@path,\@currcategories);
8487: pop(@path);
8488: $output .= '</tr><tr><td colspan="'.$maxdepth.'" class="LC_row_separator"></td></tr>';
8489: $itemcount ++;
8490: }
8491: $output .= &Apache::loncommon::end_data_table();
8492: }
8493: }
8494: }
8495: return $output;
8496: }
8497:
8498: =pod
8499:
8500: =item *&assign_category_rows()
8501:
8502: Create a datatable row for display of nested categories in a domain,
8503: with checkboxes to allow a course to be categorized,called recursively.
8504:
8505: Inputs:
8506:
8507: itemcount - track row number for alternating colors
8508:
8509: cats - reference to array of arrays/hashes which encapsulates hierarchy of
8510: categories and subcategories.
8511:
8512: depth - current depth in hierarchy of categories and sub-categories - 0 indexed.
8513:
8514: parent - parent of current category item
8515:
8516: path - Array containing all categories back up through the hierarchy from the
8517: current category to the top level.
8518:
8519: currcategories - reference to array of current categories assigned to the course
8520:
8521: Returns: $output (markup to be displayed).
8522:
8523: =cut
8524:
8525: sub assign_category_rows {
8526: my ($itemcount,$cats,$depth,$parent,$path,$currcategories) = @_;
8527: my ($text,$name,$item,$chgstr);
8528: if (ref($cats) eq 'ARRAY') {
8529: my $maxdepth = scalar(@{$cats});
8530: if (ref($cats->[$depth]) eq 'HASH') {
8531: if (ref($cats->[$depth]{$parent}) eq 'ARRAY') {
8532: my $numchildren = @{$cats->[$depth]{$parent}};
8533: my $css_class = $itemcount%2?' class="LC_odd_row"':'';
8534: $text .= '<td><table class="LC_datatable">';
8535: for (my $j=0; $j<$numchildren; $j++) {
8536: $name = $cats->[$depth]{$parent}[$j];
8537: $item = &escape($name).':'.&escape($parent).':'.$depth;
8538: my $deeper = $depth+1;
8539: my $checked = '';
8540: if (ref($currcategories) eq 'ARRAY') {
8541: if (@{$currcategories} > 0) {
8542: if (grep(/^\Q$item\E$/,@{$currcategories})) {
8543: $checked = ' checked="checked" ';
8544: }
8545: }
8546: }
8547: $text .= '<tr><td><span class="LC_nobreak"><label>'.
8548: '<input type="checkbox" name="usecategory" value="'.
8549: $item.'"'.$checked.' />'.$name.'</label></span></td><td>';
8550: if (ref($path) eq 'ARRAY') {
8551: push(@{$path},$name);
8552: $text .= &assign_category_rows($itemcount,$cats,$deeper,$name,$path,$currcategories);
8553: pop(@{$path});
8554: }
8555: $text .= '</td></tr>';
8556: }
8557: $text .= '</table></td>';
8558: }
8559: }
8560: }
8561: return $text;
8562: }
8563:
8564: ############################################################
8565: ############################################################
8566:
8567:
8568: sub commit_customrole {
8569: my ($udom,$uname,$url,$three,$four,$five,$start,$end,$context) = @_;
8570: my $output = &mt('Assigning custom role').' "'.$five.'" by '.$four.':'.$three.' in '.$url.
8571: ($start?', '.&mt('starting').' '.localtime($start):'').
8572: ($end?', ending '.localtime($end):'').': <b>'.
8573: &Apache::lonnet::assigncustomrole(
8574: $udom,$uname,$url,$three,$four,$five,$end,$start,undef,undef,$context).
8575: '</b><br />';
8576: return $output;
8577: }
8578:
8579: sub commit_standardrole {
8580: my ($udom,$uname,$url,$three,$start,$end,$one,$two,$sec,$context) = @_;
8581: my ($output,$logmsg,$linefeed);
8582: if ($context eq 'auto') {
8583: $linefeed = "\n";
8584: } else {
8585: $linefeed = "<br />\n";
8586: }
8587: if ($three eq 'st') {
8588: my $result = &commit_studentrole(\$logmsg,$udom,$uname,$url,$three,$start,$end,
8589: $one,$two,$sec,$context);
8590: if (($result =~ /^error/) || ($result eq 'not_in_class') ||
8591: ($result eq 'unknown_course') || ($result eq 'refused')) {
8592: $output = $logmsg.' '.&mt('Error: ').$result."\n";
8593: } else {
8594: $output = $logmsg.$linefeed.&mt('Assigning').' '.$three.' in '.$url.
8595: ($start?', '.&mt('starting').' '.localtime($start):'').
8596: ($end?', '.&mt('ending').' '.localtime($end):'').': ';
8597: if ($context eq 'auto') {
8598: $output .= $result.$linefeed.&mt('Add to classlist').': ok';
8599: } else {
8600: $output .= '<b>'.$result.'</b>'.$linefeed.
8601: &mt('Add to classlist').': <b>ok</b>';
8602: }
8603: $output .= $linefeed;
8604: }
8605: } else {
8606: $output = &mt('Assigning').' '.$three.' in '.$url.
8607: ($start?', '.&mt('starting').' '.localtime($start):'').
8608: ($end?', '.&mt('ending').' '.localtime($end):'').': ';
8609: my $result = &Apache::lonnet::assignrole($udom,$uname,$url,$three,$end,$start,'','',$context);
8610: if ($context eq 'auto') {
8611: $output .= $result.$linefeed;
8612: } else {
8613: $output .= '<b>'.$result.'</b>'.$linefeed;
8614: }
8615: }
8616: return $output;
8617: }
8618:
8619: sub commit_studentrole {
8620: my ($logmsg,$udom,$uname,$url,$three,$start,$end,$one,$two,$sec,$context) = @_;
8621: my ($result,$linefeed,$oldsecurl,$newsecurl);
8622: if ($context eq 'auto') {
8623: $linefeed = "\n";
8624: } else {
8625: $linefeed = '<br />'."\n";
8626: }
8627: if (defined($one) && defined($two)) {
8628: my $cid=$one.'_'.$two;
8629: my $oldsec=&Apache::lonnet::getsection($udom,$uname,$cid);
8630: my $secchange = 0;
8631: my $expire_role_result;
8632: my $modify_section_result;
8633: if ($oldsec ne '-1') {
8634: if ($oldsec ne $sec) {
8635: $secchange = 1;
8636: my $now = time;
8637: my $uurl='/'.$cid;
8638: $uurl=~s/\_/\//g;
8639: if ($oldsec) {
8640: $uurl.='/'.$oldsec;
8641: }
8642: $oldsecurl = $uurl;
8643: $expire_role_result =
8644: &Apache::lonnet::assignrole($udom,$uname,$uurl,'st',$now,'','',$context);
8645: if ($env{'request.course.sec'} ne '') {
8646: if ($expire_role_result eq 'refused') {
8647: my @roles = ('st');
8648: my @statuses = ('previous');
8649: my @roledoms = ($one);
8650: my $withsec = 1;
8651: my %roleshash =
8652: &Apache::lonnet::get_my_roles($uname,$udom,'userroles',
8653: \@statuses,\@roles,\@roledoms,$withsec);
8654: if (defined ($roleshash{$two.':'.$one.':st:'.$oldsec})) {
8655: my ($oldstart,$oldend) =
8656: split(':',$roleshash{$two.':'.$one.':st:'.$oldsec});
8657: if ($oldend > 0 && $oldend <= $now) {
8658: $expire_role_result = 'ok';
8659: }
8660: }
8661: }
8662: }
8663: $result = $expire_role_result;
8664: }
8665: }
8666: if (($expire_role_result eq 'ok') || ($secchange == 0)) {
8667: $modify_section_result = &Apache::lonnet::modify_student_enrollment($udom,$uname,undef,undef,undef,undef,undef,$sec,$end,$start,'','',$cid,'',$context);
8668: if ($modify_section_result =~ /^ok/) {
8669: if ($secchange == 1) {
8670: if ($sec eq '') {
8671: $$logmsg .= &mt('Section for [_1] switched from (possibly expired) old section: [_2] to student role without a section.',$uname,$oldsec).$linefeed;
8672: } else {
8673: $$logmsg .= &mt('Section for [_1] switched from (possibly expired) old section: [_2] to new section: [_3].',$uname,$oldsec,$sec).$linefeed;
8674: }
8675: } elsif ($oldsec eq '-1') {
8676: if ($sec eq '') {
8677: $$logmsg .= &mt('New student role without a section for [_1] in course [_2].',$uname,$cid).$linefeed;
8678: } else {
8679: $$logmsg .= &mt('New student role for [_1] in section [_2] in course [_3].',$uname,$sec,$cid).$linefeed;
8680: }
8681: } else {
8682: if ($sec eq '') {
8683: $$logmsg .= &mt('Student [_1] assigned to course [_2] without a section.',$uname,$cid).$linefeed;
8684: } else {
8685: $$logmsg .= &mt('Student [_1] assigned to section [_2] in course [_3].',$uname,$sec,$cid).$linefeed;
8686: }
8687: }
8688: } else {
8689: if ($secchange) {
8690: $$logmsg .= &mt('Error when attempting section change for [_1] from old section "[_2]" to new section: "[_3]" in course [_4] -error:',$uname,$oldsec,$sec,$cid).' '.$modify_section_result.$linefeed;
8691: } else {
8692: $$logmsg .= &mt('Error when attempting to modify role for [_1] for section: "[_2]" in course [_3] -error:',$uname,$sec,$cid).' '.$modify_section_result.$linefeed;
8693: }
8694: }
8695: $result = $modify_section_result;
8696: } elsif ($secchange == 1) {
8697: if ($oldsec eq '') {
8698: $$logmsg .= &mt('Error when attempting to expire existing role without a section for [_1] in course [_3] -error: ',$uname,$cid).' '.$expire_role_result.$linefeed;
8699: } else {
8700: $$logmsg .= &mt('Error when attempting to expire existing role for [_1] in section [_2] in course [_3] -error: ',$uname,$oldsec,$cid).' '.$expire_role_result.$linefeed;
8701: }
8702: if ($expire_role_result eq 'refused') {
8703: my $newsecurl = '/'.$cid;
8704: $newsecurl =~ s/\_/\//g;
8705: if ($sec ne '') {
8706: $newsecurl.='/'.$sec;
8707: }
8708: if (&Apache::lonnet::allowed('cst',$newsecurl) && !(&Apache::lonnet::allowed('cst',$oldsecurl))) {
8709: if ($sec eq '') {
8710: $$logmsg .= &mt('Although your current role has privileges to add students to section "[_1]", you do not have privileges to modify existing enrollments unaffiliated with any section.',$sec).$linefeed;
8711: } else {
8712: $$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;
8713: }
8714: }
8715: }
8716: }
8717: } else {
8718: $$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;
8719: $result = "error: incomplete course id\n";
8720: }
8721: return $result;
8722: }
8723:
8724: ############################################################
8725: ############################################################
8726:
8727: sub check_clone {
8728: my ($args,$linefeed) = @_;
8729: my $cloneid='/'.$args->{'clonedomain'}.'/'.$args->{'clonecourse'};
8730: my ($clonecrsudom,$clonecrsunum)= &LONCAPA::split_courseid($cloneid);
8731: my $clonehome=&Apache::lonnet::homeserver($clonecrsunum,$clonecrsudom);
8732: my $clonemsg;
8733: my $can_clone = 0;
8734:
8735: if ($clonehome eq 'no_host') {
8736: $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'});
8737: } else {
8738: my %clonedesc = &Apache::lonnet::coursedescription($cloneid,{'one_time' => 1});
8739: if ($env{'request.role.domain'} eq $args->{'clonedomain'}) {
8740: $can_clone = 1;
8741: } else {
8742: my %clonehash = &Apache::lonnet::get('environment',['cloners'],
8743: $args->{'clonedomain'},$args->{'clonecourse'});
8744: my @cloners = split(/,/,$clonehash{'cloners'});
8745: if (grep(/^\*$/,@cloners)) {
8746: $can_clone = 1;
8747: } elsif (grep(/^\*\:\Q$args->{'ccdomain'}\E$/,@cloners)) {
8748: $can_clone = 1;
8749: } else {
8750: my %roleshash =
8751: &Apache::lonnet::get_my_roles($args->{'ccuname'},
8752: $args->{'ccdomain'},
8753: 'userroles',['active'],['cc'],
8754: [$args->{'clonedomain'}]);
8755: if (($roleshash{$args->{'clonecourse'}.':'.$args->{'clonedomain'}.':cc'}) || (grep(/^\Q$args->{'ccuname'}\E:\Q$args->{'ccdomain'}\E$/,@cloners))) {
8756: $can_clone = 1;
8757: } else {
8758: $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'});
8759: }
8760: }
8761: }
8762: }
8763: return ($can_clone, $clonemsg, $cloneid, $clonehome);
8764: }
8765:
8766: sub construct_course {
8767: my ($args,$logmsg,$courseid,$crsudom,$crsunum,$udom,$uname,$context) = @_;
8768: my $outcome;
8769: my $linefeed = '<br />'."\n";
8770: if ($context eq 'auto') {
8771: $linefeed = "\n";
8772: }
8773:
8774: #
8775: # Are we cloning?
8776: #
8777: my ($can_clone, $clonemsg, $cloneid, $clonehome);
8778: if (($args->{'clonecourse'}) && ($args->{'clonedomain'})) {
8779: ($can_clone, $clonemsg, $cloneid, $clonehome) = &check_clone($args,$linefeed);
8780: if ($context ne 'auto') {
8781: if ($clonemsg ne '') {
8782: $clonemsg = '<span class="LC_error">'.$clonemsg.'</span>';
8783: }
8784: }
8785: $outcome .= $clonemsg.$linefeed;
8786:
8787: if (!$can_clone) {
8788: return (0,$outcome);
8789: }
8790: }
8791:
8792: #
8793: # Open course
8794: #
8795: my $crstype = lc($args->{'crstype'});
8796: my %cenv=();
8797: $$courseid=&Apache::lonnet::createcourse($args->{'course_domain'},
8798: $args->{'cdescr'},
8799: $args->{'curl'},
8800: $args->{'course_home'},
8801: $args->{'nonstandard'},
8802: $args->{'crscode'},
8803: $args->{'ccuname'}.':'.
8804: $args->{'ccdomain'},
8805: $args->{'crstype'});
8806:
8807: # Note: The testing routines depend on this being output; see
8808: # Utils::Course. This needs to at least be output as a comment
8809: # if anyone ever decides to not show this, and Utils::Course::new
8810: # will need to be suitably modified.
8811: $outcome .= &mt('New LON-CAPA [_1] ID: [_2]',$crstype,$$courseid).$linefeed;
8812: #
8813: # Check if created correctly
8814: #
8815: ($$crsudom,$$crsunum)= &LONCAPA::split_courseid($$courseid);
8816: my $crsuhome=&Apache::lonnet::homeserver($$crsunum,$$crsudom);
8817: $outcome .= &mt('Created on').': '.$crsuhome.$linefeed;
8818:
8819: #
8820: # Do the cloning
8821: #
8822: if ($can_clone && $cloneid) {
8823: $clonemsg = &mt('Cloning [_1] from [_2]',$crstype,$clonehome);
8824: if ($context ne 'auto') {
8825: $clonemsg = '<span class="LC_success">'.$clonemsg.'</span>';
8826: }
8827: $outcome .= $clonemsg.$linefeed;
8828: my %oldcenv=&Apache::lonnet::dump('environment',$$crsudom,$$crsunum);
8829: # Copy all files
8830: &Apache::lonclonecourse::copycoursefiles($cloneid,$$courseid,$args->{'datemode'},$args->{'dateshift'});
8831: # Restore URL
8832: $cenv{'url'}=$oldcenv{'url'};
8833: # Restore title
8834: $cenv{'description'}=$oldcenv{'description'};
8835: # Mark as cloned
8836: $cenv{'clonedfrom'}=$cloneid;
8837: # Need to clone grading mode
8838: my %newenv=&Apache::lonnet::get('environment',['grading'],$$crsudom,$$crsunum);
8839: $cenv{'grading'}=$newenv{'grading'};
8840: # Do not clone these environment entries
8841: &Apache::lonnet::del('environment',
8842: ['default_enrollment_start_date',
8843: 'default_enrollment_end_date',
8844: 'question.email',
8845: 'policy.email',
8846: 'comment.email',
8847: 'pch.users.denied',
8848: 'plc.users.denied'],
8849: $$crsudom,$$crsunum);
8850: }
8851:
8852: #
8853: # Set environment (will override cloned, if existing)
8854: #
8855: my @sections = ();
8856: my @xlists = ();
8857: if ($args->{'crstype'}) {
8858: $cenv{'type'}=$args->{'crstype'};
8859: }
8860: if ($args->{'crsid'}) {
8861: $cenv{'courseid'}=$args->{'crsid'};
8862: }
8863: if ($args->{'crscode'}) {
8864: $cenv{'internal.coursecode'}=$args->{'crscode'};
8865: }
8866: if ($args->{'crsquota'} ne '') {
8867: $cenv{'internal.coursequota'}=$args->{'crsquota'};
8868: } else {
8869: $cenv{'internal.coursequota'}=$args->{'crsquota'} = 20;
8870: }
8871: if ($args->{'ccuname'}) {
8872: $cenv{'internal.courseowner'} = $args->{'ccuname'}.
8873: ':'.$args->{'ccdomain'};
8874: } else {
8875: $cenv{'internal.courseowner'} = $args->{'curruser'};
8876: }
8877: my @badclasses = (); # Used to accumulate sections/crosslistings that did not pass classlist access check for course owner.
8878: if ($args->{'crssections'}) {
8879: $cenv{'internal.sectionnums'} = '';
8880: if ($args->{'crssections'} =~ m/,/) {
8881: @sections = split/,/,$args->{'crssections'};
8882: } else {
8883: $sections[0] = $args->{'crssections'};
8884: }
8885: if (@sections > 0) {
8886: foreach my $item (@sections) {
8887: my ($sec,$gp) = split/:/,$item;
8888: my $class = $args->{'crscode'}.$sec;
8889: my $addcheck = &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$class,$cenv{'internal.courseowner'});
8890: $cenv{'internal.sectionnums'} .= $item.',';
8891: unless ($addcheck eq 'ok') {
8892: push @badclasses, $class;
8893: }
8894: }
8895: $cenv{'internal.sectionnums'} =~ s/,$//;
8896: }
8897: }
8898: # do not hide course coordinator from staff listing,
8899: # even if privileged
8900: $cenv{'nothideprivileged'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
8901: # add crosslistings
8902: if ($args->{'crsxlist'}) {
8903: $cenv{'internal.crosslistings'}='';
8904: if ($args->{'crsxlist'} =~ m/,/) {
8905: @xlists = split/,/,$args->{'crsxlist'};
8906: } else {
8907: $xlists[0] = $args->{'crsxlist'};
8908: }
8909: if (@xlists > 0) {
8910: foreach my $item (@xlists) {
8911: my ($xl,$gp) = split/:/,$item;
8912: my $addcheck = &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$xl,$cenv{'internal.courseowner'});
8913: $cenv{'internal.crosslistings'} .= $item.',';
8914: unless ($addcheck eq 'ok') {
8915: push @badclasses, $xl;
8916: }
8917: }
8918: $cenv{'internal.crosslistings'} =~ s/,$//;
8919: }
8920: }
8921: if ($args->{'autoadds'}) {
8922: $cenv{'internal.autoadds'}=$args->{'autoadds'};
8923: }
8924: if ($args->{'autodrops'}) {
8925: $cenv{'internal.autodrops'}=$args->{'autodrops'};
8926: }
8927: # check for notification of enrollment changes
8928: my @notified = ();
8929: if ($args->{'notify_owner'}) {
8930: if ($args->{'ccuname'} ne '') {
8931: push(@notified,$args->{'ccuname'}.':'.$args->{'ccdomain'});
8932: }
8933: }
8934: if ($args->{'notify_dc'}) {
8935: if ($uname ne '') {
8936: push(@notified,$uname.':'.$udom);
8937: }
8938: }
8939: if (@notified > 0) {
8940: my $notifylist;
8941: if (@notified > 1) {
8942: $notifylist = join(',',@notified);
8943: } else {
8944: $notifylist = $notified[0];
8945: }
8946: $cenv{'internal.notifylist'} = $notifylist;
8947: }
8948: if (@badclasses > 0) {
8949: my %lt=&Apache::lonlocal::texthash(
8950: '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',
8951: 'dnhr' => 'does not have rights to access enrollment in these classes',
8952: 'adby' => 'as determined by the policies of your institution on access to official classlists'
8953: );
8954: my $badclass_msg = $cenv{'internal.courseowner'}.') - '.$lt{'dnhr'}.
8955: ' ('.$lt{'adby'}.')';
8956: if ($context eq 'auto') {
8957: $outcome .= $badclass_msg.$linefeed;
8958: $outcome .= '<div class="LC_warning">'.$badclass_msg.$linefeed.'<ul>'."\n";
8959: foreach my $item (@badclasses) {
8960: if ($context eq 'auto') {
8961: $outcome .= " - $item\n";
8962: } else {
8963: $outcome .= "<li>$item</li>\n";
8964: }
8965: }
8966: if ($context eq 'auto') {
8967: $outcome .= $linefeed;
8968: } else {
8969: $outcome .= "</ul><br /><br /></div>\n";
8970: }
8971: }
8972: }
8973: if ($args->{'no_end_date'}) {
8974: $args->{'endaccess'} = 0;
8975: }
8976: $cenv{'internal.autostart'}=$args->{'enrollstart'};
8977: $cenv{'internal.autoend'}=$args->{'enrollend'};
8978: $cenv{'default_enrollment_start_date'}=$args->{'startaccess'};
8979: $cenv{'default_enrollment_end_date'}=$args->{'endaccess'};
8980: if ($args->{'showphotos'}) {
8981: $cenv{'internal.showphotos'}=$args->{'showphotos'};
8982: }
8983: $cenv{'internal.authtype'} = $args->{'authtype'};
8984: $cenv{'internal.autharg'} = $args->{'autharg'};
8985: if ( ($cenv{'internal.authtype'} =~ /^krb/) && ($cenv{'internal.autoadds'} == 1)) {
8986: if (! defined($cenv{'internal.autharg'}) || $cenv{'internal.autharg'} eq '') {
8987: 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');
8988: if ($context eq 'auto') {
8989: $outcome .= $krb_msg;
8990: } else {
8991: $outcome .= '<span class="LC_error">'.$krb_msg.'</span>';
8992: }
8993: $outcome .= $linefeed;
8994: }
8995: }
8996: if (($args->{'ccdomain'}) && ($args->{'ccuname'})) {
8997: if ($args->{'setpolicy'}) {
8998: $cenv{'policy.email'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
8999: }
9000: if ($args->{'setcontent'}) {
9001: $cenv{'question.email'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
9002: }
9003: }
9004: if ($args->{'reshome'}) {
9005: $cenv{'reshome'}=$args->{'reshome'}.'/';
9006: $cenv{'reshome'}=~s/\/+$/\//;
9007: }
9008: #
9009: # course has keyed access
9010: #
9011: if ($args->{'setkeys'}) {
9012: $cenv{'keyaccess'}='yes';
9013: }
9014: # if specified, key authority is not course, but user
9015: # only active if keyaccess is yes
9016: if ($args->{'keyauth'}) {
9017: my ($user,$domain) = split(':',$args->{'keyauth'});
9018: $user = &LONCAPA::clean_username($user);
9019: $domain = &LONCAPA::clean_username($domain);
9020: if ($user ne '' && $domain ne '') {
9021: $cenv{'keyauth'}=$user.':'.$domain;
9022: }
9023: }
9024:
9025: if ($args->{'disresdis'}) {
9026: $cenv{'pch.roles.denied'}='st';
9027: }
9028: if ($args->{'disablechat'}) {
9029: $cenv{'plc.roles.denied'}='st';
9030: }
9031:
9032: # Record we've not yet viewed the Course Initialization Helper for this
9033: # course
9034: $cenv{'course.helper.not.run'} = 1;
9035: #
9036: # Use new Randomseed
9037: #
9038: $cenv{'rndseed'}=&Apache::lonnet::latest_rnd_algorithm_id();;
9039: $cenv{'receiptalg'}=&Apache::lonnet::latest_receipt_algorithm_id();;
9040: #
9041: # The encryption code and receipt prefix for this course
9042: #
9043: $cenv{'internal.encseed'}=$Apache::lonnet::perlvar{'lonReceipt'}.$$.time.int(rand(9999));
9044: $cenv{'internal.encpref'}=100+int(9*rand(99));
9045: #
9046: # By default, use standard grading
9047: if (!defined($cenv{'grading'})) { $cenv{'grading'} = 'standard'; }
9048:
9049: $outcome .= $linefeed.&mt('Setting environment').': '.
9050: &Apache::lonnet::put('environment',\%cenv,$$crsudom,$$crsunum).$linefeed;
9051: #
9052: # Open all assignments
9053: #
9054: if ($args->{'openall'}) {
9055: my $storeunder=$$crsudom.'_'.$$crsunum.'.0.opendate';
9056: my %storecontent = ($storeunder => time,
9057: $storeunder.'.type' => 'date_start');
9058:
9059: $outcome .= &mt('Opening all assignments').': '.&Apache::lonnet::cput
9060: ('resourcedata',\%storecontent,$$crsudom,$$crsunum).$linefeed;
9061: }
9062: #
9063: # Set first page
9064: #
9065: unless (($args->{'nonstandard'}) || ($args->{'firstres'} eq 'blank')
9066: || ($cloneid)) {
9067: use LONCAPA::map;
9068: $outcome .= &mt('Setting first resource').': ';
9069:
9070: my $map = '/uploaded/'.$$crsudom.'/'.$$crsunum.'/default.sequence';
9071: my ($errtext,$fatal)=&LONCAPA::map::mapread($map);
9072:
9073: $outcome .= ($fatal?$errtext:'read ok').' - ';
9074: my $title; my $url;
9075: if ($args->{'firstres'} eq 'syl') {
9076: $title='Syllabus';
9077: $url='/public/'.$$crsudom.'/'.$$crsunum.'/syllabus';
9078: } else {
9079: $title='Navigate Contents';
9080: $url='/adm/navmaps';
9081: }
9082:
9083: $LONCAPA::map::resources[1]=$title.':'.$url.':false:start:res';
9084: (my $outtext,$errtext) = &LONCAPA::map::storemap($map,1);
9085:
9086: if ($errtext) { $fatal=2; }
9087: $outcome .= ($fatal?$errtext:'write ok').$linefeed;
9088: }
9089:
9090: return (1,$outcome);
9091: }
9092:
9093: ############################################################
9094: ############################################################
9095:
9096: sub course_type {
9097: my ($cid) = @_;
9098: if (!defined($cid)) {
9099: $cid = $env{'request.course.id'};
9100: }
9101: if (defined($env{'course.'.$cid.'.type'})) {
9102: return $env{'course.'.$cid.'.type'};
9103: } else {
9104: return 'Course';
9105: }
9106: }
9107:
9108: sub group_term {
9109: my $crstype = &course_type();
9110: my %names = (
9111: 'Course' => 'group',
9112: 'Group' => 'team',
9113: );
9114: return $names{$crstype};
9115: }
9116:
9117: sub icon {
9118: my ($file)=@_;
9119: my $curfext = lc((split(/\./,$file))[-1]);
9120: my $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/unknown.gif';
9121: my $embstyle = &Apache::loncommon::fileembstyle($curfext);
9122: if (!(!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn')) {
9123: if (-e $Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
9124: $Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
9125: $curfext.".gif") {
9126: $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
9127: $curfext.".gif";
9128: }
9129: }
9130: return &lonhttpdurl($iconname);
9131: }
9132:
9133: sub lonhttpd_port {
9134: my $lonhttpd_port=$Apache::lonnet::perlvar{'lonhttpdPort'};
9135: if (!defined($lonhttpd_port)) { $lonhttpd_port='8080'; }
9136: # IE doesn't like a secure page getting images from a non-secure
9137: # port (when logging we haven't parsed the browser type so default
9138: # back to secure
9139: if ((!exists($env{'browser.type'}) || $env{'browser.type'} eq 'explorer')
9140: && $ENV{'SERVER_PORT'} == 443) {
9141: return 443;
9142: }
9143: return $lonhttpd_port;
9144:
9145: }
9146:
9147: sub lonhttpdurl {
9148: my ($url)=@_;
9149:
9150: my $lonhttpd_port = &lonhttpd_port();
9151: if ($lonhttpd_port == 443) {
9152: return 'https://'.$ENV{'SERVER_NAME'}.$url;
9153: }
9154: return 'http://'.$ENV{'SERVER_NAME'}.':'.$lonhttpd_port.$url;
9155: }
9156:
9157: sub connection_aborted {
9158: my ($r)=@_;
9159: $r->print(" ");$r->rflush();
9160: my $c = $r->connection;
9161: return $c->aborted();
9162: }
9163:
9164: # Escapes strings that may have embedded 's that will be put into
9165: # strings as 'strings'.
9166: sub escape_single {
9167: my ($input) = @_;
9168: $input =~ s/\\/\\\\/g; # Escape the \'s..(must be first)>
9169: $input =~ s/\'/\\\'/g; # Esacpe the 's....
9170: return $input;
9171: }
9172:
9173: # Same as escape_single, but escape's "'s This
9174: # can be used for "strings"
9175: sub escape_double {
9176: my ($input) = @_;
9177: $input =~ s/\\/\\\\/g; # Escape the /'s..(must be first)>
9178: $input =~ s/\"/\\\"/g; # Esacpe the "s....
9179: return $input;
9180: }
9181:
9182: # Escapes the last element of a full URL.
9183: sub escape_url {
9184: my ($url) = @_;
9185: my @urlslices = split(/\//, $url,-1);
9186: my $lastitem = &escape(pop(@urlslices));
9187: return join('/',@urlslices).'/'.$lastitem;
9188: }
9189:
9190: # -------------------------------------------------------- Initliaze user login
9191: sub init_user_environment {
9192: my ($r, $username, $domain, $authhost, $form, $args) = @_;
9193: my $lonids=$Apache::lonnet::perlvar{'lonIDsDir'};
9194:
9195: my $public=($username eq 'public' && $domain eq 'public');
9196:
9197: # See if old ID present, if so, remove
9198:
9199: my ($filename,$cookie,$userroles);
9200: my $now=time;
9201:
9202: if ($public) {
9203: my $max_public=100;
9204: my $oldest;
9205: my $oldest_time=0;
9206: for(my $next=1;$next<=$max_public;$next++) {
9207: if (-e $lonids."/publicuser_$next.id") {
9208: my $mtime=(stat($lonids."/publicuser_$next.id"))[9];
9209: if ($mtime<$oldest_time || !$oldest_time) {
9210: $oldest_time=$mtime;
9211: $oldest=$next;
9212: }
9213: } else {
9214: $cookie="publicuser_$next";
9215: last;
9216: }
9217: }
9218: if (!$cookie) { $cookie="publicuser_$oldest"; }
9219: } else {
9220: # if this isn't a robot, kill any existing non-robot sessions
9221: if (!$args->{'robot'}) {
9222: opendir(DIR,$lonids);
9223: while ($filename=readdir(DIR)) {
9224: if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) {
9225: unlink($lonids.'/'.$filename);
9226: }
9227: }
9228: closedir(DIR);
9229: }
9230: # Give them a new cookie
9231: my $id = ($args->{'robot'} ? 'robot'.$args->{'robot'}
9232: : $now);
9233: $cookie="$username\_$id\_$domain\_$authhost";
9234:
9235: # Initialize roles
9236:
9237: $userroles=&Apache::lonnet::rolesinit($domain,$username,$authhost);
9238: }
9239: # ------------------------------------ Check browser type and MathML capability
9240:
9241: my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
9242: $clientunicode,$clientos) = &decode_user_agent($r);
9243:
9244: # -------------------------------------- Any accessibility options to remember?
9245: if (($form->{'interface'}) && ($form->{'remember'} eq 'true')) {
9246: foreach my $option ('imagesuppress','appletsuppress',
9247: 'embedsuppress','fontenhance','blackwhite') {
9248: if ($form->{$option} eq 'true') {
9249: &Apache::lonnet::put('environment',{$option => 'on'},
9250: $domain,$username);
9251: } else {
9252: &Apache::lonnet::del('environment',[$option],
9253: $domain,$username);
9254: }
9255: }
9256: }
9257: # ------------------------------------------------------------- Get environment
9258:
9259: my %userenv = &Apache::lonnet::dump('environment',$domain,$username);
9260: my ($tmp) = keys(%userenv);
9261: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
9262: # default remote control to off
9263: if ($userenv{'remote'} ne 'on') { $userenv{'remote'} = 'off'; }
9264: } else {
9265: undef(%userenv);
9266: }
9267: if (($userenv{'interface'}) && (!$form->{'interface'})) {
9268: $form->{'interface'}=$userenv{'interface'};
9269: }
9270: $env{'environment.remote'}=$userenv{'remote'};
9271: if ($userenv{'texengine'} eq 'ttm') { $clientmathml=1; }
9272:
9273: # --------------- Do not trust query string to be put directly into environment
9274: foreach my $option ('imagesuppress','appletsuppress',
9275: 'embedsuppress','fontenhance','blackwhite',
9276: 'interface','localpath','localres') {
9277: $form->{$option}=~s/[\n\r\=]//gs;
9278: }
9279: # --------------------------------------------------------- Write first profile
9280:
9281: {
9282: my %initial_env =
9283: ("user.name" => $username,
9284: "user.domain" => $domain,
9285: "user.home" => $authhost,
9286: "browser.type" => $clientbrowser,
9287: "browser.version" => $clientversion,
9288: "browser.mathml" => $clientmathml,
9289: "browser.unicode" => $clientunicode,
9290: "browser.os" => $clientos,
9291: "server.domain" => $Apache::lonnet::perlvar{'lonDefDomain'},
9292: "request.course.fn" => '',
9293: "request.course.uri" => '',
9294: "request.course.sec" => '',
9295: "request.role" => 'cm',
9296: "request.role.adv" => $env{'user.adv'},
9297: "request.host" => $ENV{'REMOTE_ADDR'},);
9298:
9299: if ($form->{'localpath'}) {
9300: $initial_env{"browser.localpath"} = $form->{'localpath'};
9301: $initial_env{"browser.localres"} = $form->{'localres'};
9302: }
9303:
9304: if ($public) {
9305: $initial_env{"environment.remote"} = "off";
9306: }
9307: if ($form->{'interface'}) {
9308: $form->{'interface'}=~s/\W//gs;
9309: $initial_env{"browser.interface"} = $form->{'interface'};
9310: $env{'browser.interface'}=$form->{'interface'};
9311: foreach my $option ('imagesuppress','appletsuppress',
9312: 'embedsuppress','fontenhance','blackwhite') {
9313: if (($form->{$option} eq 'true') ||
9314: ($userenv{$option} eq 'on')) {
9315: $initial_env{"browser.$option"} = "on";
9316: }
9317: }
9318: }
9319:
9320: $env{'user.environment'} = "$lonids/$cookie.id";
9321:
9322: if (tie(my %disk_env,'GDBM_File',"$lonids/$cookie.id",
9323: &GDBM_WRCREAT(),0640)) {
9324: &_add_to_env(\%disk_env,\%initial_env);
9325: &_add_to_env(\%disk_env,\%userenv,'environment.');
9326: &_add_to_env(\%disk_env,$userroles);
9327: if (ref($args->{'extra_env'})) {
9328: &_add_to_env(\%disk_env,$args->{'extra_env'});
9329: }
9330: untie(%disk_env);
9331: } else {
9332: &Apache::lonnet::logthis("<font color=\"blue\">WARNING: ".
9333: 'Could not create environment storage in lonauth: '.$!.'</font>');
9334: return 'error: '.$!;
9335: }
9336: }
9337: $env{'request.role'}='cm';
9338: $env{'request.role.adv'}=$env{'user.adv'};
9339: $env{'browser.type'}=$clientbrowser;
9340:
9341: return $cookie;
9342:
9343: }
9344:
9345: sub _add_to_env {
9346: my ($idf,$env_data,$prefix) = @_;
9347: while (my ($key,$value) = each(%$env_data)) {
9348: $idf->{$prefix.$key} = $value;
9349: $env{$prefix.$key} = $value;
9350: }
9351: }
9352:
9353:
9354: =pod
9355:
9356: =back
9357:
9358: =cut
9359:
9360: 1;
9361: __END__;
9362:
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