1: # The LearningOnline Network with CAPA
2: # a pile of common routines
3: #
4: # $Id: loncommon.pm,v 1.512 2007/03/03 01:33:20 albertel 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:
71: my $readit;
72:
73: ##
74: ## Global Variables
75: ##
76:
77: # ----------------------------------------------- Filetypes/Languages/Copyright
78: my %language;
79: my %supported_language;
80: my %cprtag;
81: my %scprtag;
82: my %fe; my %fd; my %fm;
83: my %category_extensions;
84:
85: # ---------------------------------------------- Designs
86:
87: my %designhash;
88:
89: # ---------------------------------------------- Thesaurus variables
90: #
91: # %Keywords:
92: # A hash used by &keyword to determine if a word is considered a keyword.
93: # $thesaurus_db_file
94: # Scalar containing the full path to the thesaurus database.
95:
96: my %Keywords;
97: my $thesaurus_db_file;
98:
99: #
100: # Initialize values from language.tab, copyright.tab, filetypes.tab,
101: # thesaurus.tab, and filecategories.tab.
102: #
103: BEGIN {
104: # Variable initialization
105: $thesaurus_db_file = $Apache::lonnet::perlvar{'lonTabDir'}."/thesaurus.db";
106: #
107: unless ($readit) {
108: # ------------------------------------------------------------------- languages
109: {
110: my $langtabfile = $Apache::lonnet::perlvar{'lonTabDir'}.
111: '/language.tab';
112: if ( open(my $fh,"<$langtabfile") ) {
113: while (my $line = <$fh>) {
114: next if ($line=~/^\#/);
115: chomp($line);
116: my ($key,$two,$country,$three,$enc,$val,$sup)=(split(/\t/,$line));
117: $language{$key}=$val.' - '.$enc;
118: if ($sup) {
119: $supported_language{$key}=$sup;
120: }
121: }
122: close($fh);
123: }
124: }
125: # ------------------------------------------------------------------ copyrights
126: {
127: my $copyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
128: '/copyright.tab';
129: if ( open (my $fh,"<$copyrightfile") ) {
130: while (my $line = <$fh>) {
131: next if ($line=~/^\#/);
132: chomp($line);
133: my ($key,$val)=(split(/\s+/,$line,2));
134: $cprtag{$key}=$val;
135: }
136: close($fh);
137: }
138: }
139: # ----------------------------------------------------------- source copyrights
140: {
141: my $sourcecopyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
142: '/source_copyright.tab';
143: if ( open (my $fh,"<$sourcecopyrightfile") ) {
144: while (my $line = <$fh>) {
145: next if ($line =~ /^\#/);
146: chomp($line);
147: my ($key,$val)=(split(/\s+/,$line,2));
148: $scprtag{$key}=$val;
149: }
150: close($fh);
151: }
152: }
153:
154: # -------------------------------------------------------------- domain designs
155:
156: my $filename;
157: my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors';
158: opendir(DIR,$designdir);
159: while ($filename=readdir(DIR)) {
160: if ($filename!~/\.tab$/) { next; }
161: my ($domain)=($filename=~/^($match_domain)\./);
162: {
163: my $designfile = $designdir.'/'.$filename;
164: if ( open (my $fh,"<$designfile") ) {
165: while (my $line = <$fh>) {
166: next if ($line =~ /^\#/);
167: chomp($line);
168: my ($key,$val)=(split(/\=/,$line));
169: if ($val) { $designhash{$domain.'.'.$key}=$val; }
170: }
171: close($fh);
172: }
173: }
174:
175: }
176: closedir(DIR);
177:
178:
179: # ------------------------------------------------------------- file categories
180: {
181: my $categoryfile = $Apache::lonnet::perlvar{'lonTabDir'}.
182: '/filecategories.tab';
183: if ( open (my $fh,"<$categoryfile") ) {
184: while (my $line = <$fh>) {
185: next if ($line =~ /^\#/);
186: chomp($line);
187: my ($extension,$category)=(split(/\s+/,$line,2));
188: push @{$category_extensions{lc($category)}},$extension;
189: }
190: close($fh);
191: }
192:
193: }
194: # ------------------------------------------------------------------ file types
195: {
196: my $typesfile = $Apache::lonnet::perlvar{'lonTabDir'}.
197: '/filetypes.tab';
198: if ( open (my $fh,"<$typesfile") ) {
199: while (my $line = <$fh>) {
200: next if ($line =~ /^\#/);
201: chomp($line);
202: my ($ending,$emb,$mime,$descr)=split(/\s+/,$line,4);
203: if ($descr ne '') {
204: $fe{$ending}=lc($emb);
205: $fd{$ending}=$descr;
206: if ($mime ne 'unk') { $fm{$ending}=$mime; }
207: }
208: }
209: close($fh);
210: }
211: }
212: &Apache::lonnet::logthis(
213: "<font color=yellow>INFO: Read file types</font>");
214: $readit=1;
215: } # end of unless($readit)
216:
217: }
218:
219: ###############################################################
220: ## HTML and Javascript Helper Functions ##
221: ###############################################################
222:
223: =pod
224:
225: =head1 HTML and Javascript Functions
226:
227: =over 4
228:
229: =item * browser_and_searcher_javascript ()
230:
231: X<browsing, javascript>X<searching, javascript>Returns a string
232: containing javascript with two functions, C<openbrowser> and
233: C<opensearcher>. Returned string does not contain E<lt>scriptE<gt>
234: tags.
235:
236: =item * openbrowser(formname,elementname,only,omit) [javascript]
237:
238: inputs: formname, elementname, only, omit
239:
240: formname and elementname indicate the name of the html form and name of
241: the element that the results of the browsing selection are to be placed in.
242:
243: Specifying 'only' will restrict the browser to displaying only files
244: with the given extension. Can be a comma separated list.
245:
246: Specifying 'omit' will restrict the browser to NOT displaying files
247: with the given extension. Can be a comma separated list.
248:
249: =item * opensearcher(formname, elementname) [javascript]
250:
251: Inputs: formname, elementname
252:
253: formname and elementname specify the name of the html form and the name
254: of the element the selection from the search results will be placed in.
255:
256: =cut
257:
258: sub browser_and_searcher_javascript {
259: my ($mode)=@_;
260: if (!defined($mode)) { $mode='edit'; }
261: my $resurl=&escape_single(&lastresurl());
262: return <<END;
263: // <!-- BEGIN LON-CAPA Internal
264: var editbrowser = null;
265: function openbrowser(formname,elementname,only,omit,titleelement) {
266: var url = '$resurl/?';
267: if (editbrowser == null) {
268: url += 'launch=1&';
269: }
270: url += 'catalogmode=interactive&';
271: url += 'mode=$mode&';
272: url += 'form=' + formname + '&';
273: if (only != null) {
274: url += 'only=' + only + '&';
275: } else {
276: url += 'only=&';
277: }
278: if (omit != null) {
279: url += 'omit=' + omit + '&';
280: } else {
281: url += 'omit=&';
282: }
283: if (titleelement != null) {
284: url += 'titleelement=' + titleelement + '&';
285: } else {
286: url += 'titleelement=&';
287: }
288: url += 'element=' + elementname + '';
289: var title = 'Browser';
290: var options = 'scrollbars=1,resizable=1,menubar=0,toolbar=1,location=1';
291: options += ',width=700,height=600';
292: editbrowser = open(url,title,options,'1');
293: editbrowser.focus();
294: }
295: var editsearcher;
296: function opensearcher(formname,elementname,titleelement) {
297: var url = '/adm/searchcat?';
298: if (editsearcher == null) {
299: url += 'launch=1&';
300: }
301: url += 'catalogmode=interactive&';
302: url += 'mode=$mode&';
303: url += 'form=' + formname + '&';
304: if (titleelement != null) {
305: url += 'titleelement=' + titleelement + '&';
306: } else {
307: url += 'titleelement=&';
308: }
309: url += 'element=' + elementname + '';
310: var title = 'Search';
311: var options = 'scrollbars=1,resizable=1,menubar=0,toolbar=1,location=1';
312: options += ',width=700,height=600';
313: editsearcher = open(url,title,options,'1');
314: editsearcher.focus();
315: }
316: // END LON-CAPA Internal -->
317: END
318: }
319:
320: sub lastresurl {
321: if ($env{'environment.lastresurl'}) {
322: return $env{'environment.lastresurl'}
323: } else {
324: return '/res';
325: }
326: }
327:
328: sub storeresurl {
329: my $resurl=&Apache::lonnet::clutter(shift);
330: unless ($resurl=~/^\/res/) { return 0; }
331: $resurl=~s/\/$//;
332: &Apache::lonnet::put('environment',{'lastresurl' => $resurl});
333: &Apache::lonnet::appenv('environment.lastresurl' => $resurl);
334: return 1;
335: }
336:
337: sub studentbrowser_javascript {
338: unless (
339: (($env{'request.course.id'}) &&
340: (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
341: || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
342: '/'.$env{'request.course.sec'})
343: ))
344: || ($env{'request.role'}=~/^(au|dc|su)/)
345: ) { return ''; }
346: return (<<'ENDSTDBRW');
347: <script type="text/javascript" language="Javascript" >
348: var stdeditbrowser;
349: function openstdbrowser(formname,uname,udom,roleflag) {
350: var url = '/adm/pickstudent?';
351: var filter;
352: eval('filter=document.'+formname+'.'+uname+'.value;');
353: if (filter != null) {
354: if (filter != '') {
355: url += 'filter='+filter+'&';
356: }
357: }
358: url += 'form=' + formname + '&unameelement='+uname+
359: '&udomelement='+udom;
360: if (roleflag) { url+="&roles=1"; }
361: var title = 'Student_Browser';
362: var options = 'scrollbars=1,resizable=1,menubar=0';
363: options += ',width=700,height=600';
364: stdeditbrowser = open(url,title,options,'1');
365: stdeditbrowser.focus();
366: }
367: </script>
368: ENDSTDBRW
369: }
370:
371: sub selectstudent_link {
372: my ($form,$unameele,$udomele)=@_;
373: if ($env{'request.course.id'}) {
374: if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
375: && !&Apache::lonnet::allowed('srm',$env{'request.course.id'}.
376: '/'.$env{'request.course.sec'})) {
377: return '';
378: }
379: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
380: '","'.$udomele.'");'."'>".&mt('Select User')."</a>";
381: }
382: if ($env{'request.role'}=~/^(au|dc|su)/) {
383: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
384: '","'.$udomele.'",1);'."'>".&mt('Select User')."</a>";
385: }
386: return '';
387: }
388:
389: sub coursebrowser_javascript {
390: my ($domainfilter,$sec_element,$formname)=@_;
391: 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');
392: my $output = '
393: <script type="text/javascript" language="Javascript" >
394: var stdeditbrowser;'."\n";
395: $output .= <<"ENDSTDBRW";
396: function opencrsbrowser(formname,uname,udom,desc,extra_element,multflag,crstype) {
397: var url = '/adm/pickcourse?';
398: var domainfilter = '';
399: var formid = getFormIdByName(formname);
400: if (formid > -1) {
401: var domid = getIndexByName(formid,udom);
402: if (domid > -1) {
403: if (document.forms[formid].elements[domid].type == 'select-one') {
404: domainfilter=document.forms[formid].elements[domid].options[document.forms[formid].elements[domid].selectedIndex].value;
405: }
406: if (document.forms[formid].elements[domid].type == 'hidden') {
407: domainfilter=document.forms[formid].elements[domid].value;
408: }
409: }
410: }
411: if (domainfilter != null) {
412: if (domainfilter != '') {
413: url += 'domainfilter='+domainfilter+'&';
414: }
415: }
416: url += 'form=' + formname + '&cnumelement='+uname+
417: '&cdomelement='+udom+
418: '&cnameelement='+desc;
419: if (extra_element !=null && extra_element != '') {
420: if (formname == 'rolechoice') {
421: url += '&roleelement='+extra_element;
422: if (domainfilter == null || domainfilter == '') {
423: url += '&domainfilter='+extra_element;
424: }
425: }
426: else {
427: if (formname == 'portform') {
428: url += '&setroles='+extra_element;
429: }
430: }
431: }
432: if (multflag !=null && multflag != '') {
433: url += '&multiple='+multflag;
434: }
435: if (crstype == 'Course/Group') {
436: if (formname == 'cu') {
437: crstype = document.cu.crstype.options[document.cu.crstype.selectedIndex].value;
438: if (crstype == "") {
439: alert("$crs_or_grp_alert");
440: return;
441: }
442: }
443: }
444: if (crstype !=null && crstype != '') {
445: url += '&type='+crstype;
446: }
447: var title = 'Course_Browser';
448: var options = 'scrollbars=1,resizable=1,menubar=0';
449: options += ',width=700,height=600';
450: stdeditbrowser = open(url,title,options,'1');
451: stdeditbrowser.focus();
452: }
453:
454: function getFormIdByName(formname) {
455: for (var i=0;i<document.forms.length;i++) {
456: if (document.forms[i].name == formname) {
457: return i;
458: }
459: }
460: return -1;
461: }
462:
463: function getIndexByName(formid,item) {
464: for (var i=0;i<document.forms[formid].elements.length;i++) {
465: if (document.forms[formid].elements[i].name == item) {
466: return i;
467: }
468: }
469: return -1;
470: }
471: ENDSTDBRW
472: if ($sec_element ne '') {
473: $output .= &setsec_javascript($sec_element,$formname);
474: }
475: $output .= '
476: </script>';
477: return $output;
478: }
479:
480: sub setsec_javascript {
481: my ($sec_element,$formname) = @_;
482: my $setsections = qq|
483: function setSect(sectionlist) {
484: var sectionsArray = sectionlist.split(",");
485: var numSections = sectionsArray.length;
486: document.$formname.$sec_element.length = 0;
487: if (numSections == 0) {
488: document.$formname.$sec_element.multiple=false;
489: document.$formname.$sec_element.size=1;
490: document.$formname.$sec_element.options[0] = new Option('No existing sections','',false,false)
491: } else {
492: if (numSections == 1) {
493: document.$formname.$sec_element.multiple=false;
494: document.$formname.$sec_element.size=1;
495: document.$formname.$sec_element.options[0] = new Option('Select','',true,true);
496: document.$formname.$sec_element.options[1] = new Option('No section','',false,false)
497: document.$formname.$sec_element.options[2] = new Option(sectionsArray[0],sectionsArray[0],false,false);
498: } else {
499: for (var i=0; i<numSections; i++) {
500: document.$formname.$sec_element.options[i] = new Option(sectionsArray[i],sectionsArray[i],false,false)
501: }
502: document.$formname.$sec_element.multiple=true
503: if (numSections < 3) {
504: document.$formname.$sec_element.size=numSections;
505: } else {
506: document.$formname.$sec_element.size=3;
507: }
508: document.$formname.$sec_element.options[0].selected = false
509: }
510: }
511: }
512: |;
513: return $setsections;
514: }
515:
516:
517: sub selectcourse_link {
518: my ($form,$unameele,$udomele,$desc,$extra_element,$multflag,$selecttype)=@_;
519: return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele.
520: '","'.$udomele.'","'.$desc.'","'.$extra_element.'","'.$multflag.'","'.$selecttype.'");'."'>".&mt('Select Course')."</a>";
521: }
522:
523: sub check_uncheck_jscript {
524: my $jscript = <<"ENDSCRT";
525: function checkAll(field) {
526: if (field.length > 0) {
527: for (i = 0; i < field.length; i++) {
528: field[i].checked = true ;
529: }
530: } else {
531: field.checked = true
532: }
533: }
534:
535: function uncheckAll(field) {
536: if (field.length > 0) {
537: for (i = 0; i < field.length; i++) {
538: field[i].checked = false ;
539: } } else {
540: field.checked = false ;
541: }
542: }
543: ENDSCRT
544: return $jscript;
545: }
546:
547:
548: =pod
549:
550: =item * linked_select_forms(...)
551:
552: linked_select_forms returns a string containing a <script></script> block
553: and html for two <select> menus. The select menus will be linked in that
554: changing the value of the first menu will result in new values being placed
555: in the second menu. The values in the select menu will appear in alphabetical
556: order.
557:
558: linked_select_forms takes the following ordered inputs:
559:
560: =over 4
561:
562: =item * $formname, the name of the <form> tag
563:
564: =item * $middletext, the text which appears between the <select> tags
565:
566: =item * $firstdefault, the default value for the first menu
567:
568: =item * $firstselectname, the name of the first <select> tag
569:
570: =item * $secondselectname, the name of the second <select> tag
571:
572: =item * $hashref, a reference to a hash containing the data for the menus.
573:
574: =back
575:
576: Below is an example of such a hash. Only the 'text', 'default', and
577: 'select2' keys must appear as stated. keys(%menu) are the possible
578: values for the first select menu. The text that coincides with the
579: first menu value is given in $menu{$choice1}->{'text'}. The values
580: and text for the second menu are given in the hash pointed to by
581: $menu{$choice1}->{'select2'}.
582:
583: my %menu = ( A1 => { text =>"Choice A1" ,
584: default => "B3",
585: select2 => {
586: B1 => "Choice B1",
587: B2 => "Choice B2",
588: B3 => "Choice B3",
589: B4 => "Choice B4"
590: }
591: },
592: A2 => { text =>"Choice A2" ,
593: default => "C2",
594: select2 => {
595: C1 => "Choice C1",
596: C2 => "Choice C2",
597: C3 => "Choice C3"
598: }
599: },
600: A3 => { text =>"Choice A3" ,
601: default => "D6",
602: select2 => {
603: D1 => "Choice D1",
604: D2 => "Choice D2",
605: D3 => "Choice D3",
606: D4 => "Choice D4",
607: D5 => "Choice D5",
608: D6 => "Choice D6",
609: D7 => "Choice D7"
610: }
611: }
612: );
613:
614: =cut
615:
616: sub linked_select_forms {
617: my ($formname,
618: $middletext,
619: $firstdefault,
620: $firstselectname,
621: $secondselectname,
622: $hashref
623: ) = @_;
624: my $second = "document.$formname.$secondselectname";
625: my $first = "document.$formname.$firstselectname";
626: # output the javascript to do the changing
627: my $result = '';
628: $result.="<script type=\"text/javascript\">\n";
629: $result.="var select2data = new Object();\n";
630: $" = '","';
631: my $debug = '';
632: foreach my $s1 (sort(keys(%$hashref))) {
633: $result.="select2data.d_$s1 = new Object();\n";
634: $result.="select2data.d_$s1.def = new String('".
635: $hashref->{$s1}->{'default'}."');\n";
636: $result.="select2data.d_$s1.values = new Array(";
637: my @s2values = sort(keys( %{ $hashref->{$s1}->{'select2'} } ));
638: $result.="\"@s2values\");\n";
639: $result.="select2data.d_$s1.texts = new Array(";
640: my @s2texts;
641: foreach my $value (@s2values) {
642: push @s2texts, $hashref->{$s1}->{'select2'}->{$value};
643: }
644: $result.="\"@s2texts\");\n";
645: }
646: $"=' ';
647: $result.= <<"END";
648:
649: function select1_changed() {
650: // Determine new choice
651: var newvalue = "d_" + $first.value;
652: // update select2
653: var values = select2data[newvalue].values;
654: var texts = select2data[newvalue].texts;
655: var select2def = select2data[newvalue].def;
656: var i;
657: // out with the old
658: for (i = 0; i < $second.options.length; i++) {
659: $second.options[i] = null;
660: }
661: // in with the nuclear
662: for (i=0;i<values.length; i++) {
663: $second.options[i] = new Option(values[i]);
664: $second.options[i].value = values[i];
665: $second.options[i].text = texts[i];
666: if (values[i] == select2def) {
667: $second.options[i].selected = true;
668: }
669: }
670: }
671: </script>
672: END
673: # output the initial values for the selection lists
674: $result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed()\">\n";
675: foreach my $value (sort(keys(%$hashref))) {
676: $result.=" <option value=\"$value\" ";
677: $result.=" selected=\"selected\" " if ($value eq $firstdefault);
678: $result.=">".&mt($hashref->{$value}->{'text'})."</option>\n";
679: }
680: $result .= "</select>\n";
681: my %select2 = %{$hashref->{$firstdefault}->{'select2'}};
682: $result .= $middletext;
683: $result .= "<select size=\"1\" name=\"$secondselectname\">\n";
684: my $seconddefault = $hashref->{$firstdefault}->{'default'};
685: foreach my $value (sort(keys(%select2))) {
686: $result.=" <option value=\"$value\" ";
687: $result.=" selected=\"selected\" " if ($value eq $seconddefault);
688: $result.=">".&mt($select2{$value})."</option>\n";
689: }
690: $result .= "</select>\n";
691: # return $debug;
692: return $result;
693: } # end of sub linked_select_forms {
694:
695: =pod
696:
697: =item * help_open_topic($topic, $text, $stayOnPage, $width, $height)
698:
699: Returns a string corresponding to an HTML link to the given help
700: $topic, where $topic corresponds to the name of a .tex file in
701: /home/httpd/html/adm/help/tex, with underscores replaced by
702: spaces.
703:
704: $text will optionally be linked to the same topic, allowing you to
705: link text in addition to the graphic. If you do not want to link
706: text, but wish to specify one of the later parameters, pass an
707: empty string.
708:
709: $stayOnPage is a value that will be interpreted as a boolean. If true,
710: the link will not open a new window. If false, the link will open
711: a new window using Javascript. (Default is false.)
712:
713: $width and $height are optional numerical parameters that will
714: override the width and height of the popped up window, which may
715: be useful for certain help topics with big pictures included.
716:
717: =cut
718:
719: sub help_open_topic {
720: my ($topic, $text, $stayOnPage, $width, $height) = @_;
721: $text = "" if (not defined $text);
722: $stayOnPage = 0 if (not defined $stayOnPage);
723: if ($env{'browser.interface'} eq 'textual' ||
724: $env{'environment.remote'} eq 'off' ) {
725: $stayOnPage=1;
726: }
727: $width = 350 if (not defined $width);
728: $height = 400 if (not defined $height);
729: my $filename = $topic;
730: $filename =~ s/ /_/g;
731:
732: my $template = "";
733: my $link;
734:
735: $topic=~s/\W/\_/g;
736:
737: if (!$stayOnPage)
738: {
739: $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
740: }
741: else
742: {
743: $link = "/adm/help/${filename}.hlp";
744: }
745:
746: # Add the text
747: if ($text ne "")
748: {
749: $template .=
750: "<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>".
751: "<td bgcolor='#5555FF'><a target=\"_top\" href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
752: }
753:
754: # Add the graphic
755: my $title = &mt('Online Help');
756: my $helpicon=&lonhttpdurl("/adm/help/gif/smallHelp.gif");
757: $template .= <<"ENDTEMPLATE";
758: <a target="_top" href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help: $topic)" /></a>
759: ENDTEMPLATE
760: if ($text ne '') { $template.='</td></tr></table>' };
761: return $template;
762:
763: }
764:
765: # This is a quicky function for Latex cheatsheet editing, since it
766: # appears in at least four places
767: sub helpLatexCheatsheet {
768: my $other = shift;
769: my $addOther = '';
770: if ($other) {
771: $addOther = Apache::loncommon::help_open_topic($other, shift,
772: undef, undef, 600) .
773: '</td><td>';
774: }
775: return '<table><tr><td>'.
776: $addOther .
777: &Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols',
778: undef,undef,600)
779: .'</td><td>'.
780: &Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols',
781: undef,undef,600)
782: .'</td></tr></table>';
783: }
784:
785: sub general_help {
786: my $helptopic='Student_Intro';
787: if ($env{'request.role'}=~/^(ca|au)/) {
788: $helptopic='Authoring_Intro';
789: } elsif ($env{'request.role'}=~/^cc/) {
790: $helptopic='Course_Coordination_Intro';
791: }
792: return $helptopic;
793: }
794:
795: sub update_help_link {
796: my ($topic,$component_help,$faq,$bug,$stayOnPage) = @_;
797: my $origurl = $ENV{'REQUEST_URI'};
798: $origurl=~s|^/~|/priv/|;
799: my $timestamp = time;
800: foreach my $datum (\$topic,\$component_help,\$faq,\$bug,\$origurl) {
801: $$datum = &escape($$datum);
802: }
803:
804: my $banner_link = "/adm/helpmenu?page=banner&topic=$topic&component_help=$component_help&faq=$faq&bug=$bug&origurl=$origurl&stamp=$timestamp&stayonpage=$stayOnPage";
805: my $output .= <<"ENDOUTPUT";
806: <script type="text/javascript">
807: banner_link = '$banner_link';
808: </script>
809: ENDOUTPUT
810: return $output;
811: }
812:
813: # now just updates the help link and generates a blue icon
814: sub help_open_menu {
815: my ($topic,$component_help,$faq,$bug,$stayOnPage,$width,$height,$text)
816: = @_;
817:
818: $stayOnPage = 0 if (not defined $stayOnPage);
819: if ($env{'browser.interface'} eq 'textual' ||
820: $env{'environment.remote'} eq 'off' ) {
821: $stayOnPage=1;
822: }
823: my $output;
824: if ($component_help) {
825: if (!$text) {
826: $output=&help_open_topic($component_help,undef,$stayOnPage,
827: $width,$height);
828: } else {
829: my $help_text;
830: $help_text=&unescape($topic);
831: $output='<table><tr><td>'.
832: &help_open_topic($component_help,$help_text,$stayOnPage,
833: $width,$height).'</td></tr></table>';
834: }
835: }
836: my $banner_link = &update_help_link($topic,$component_help,$faq,$bug,$stayOnPage);
837: return $output.$banner_link;
838: }
839:
840: sub top_nav_help {
841: my ($text) = @_;
842:
843: $text = &mt($text);
844:
845: my $stayOnPage =
846: ($env{'browser.interface'} eq 'textual' ||
847: $env{'environment.remote'} eq 'off' );
848: my $link= ($stayOnPage) ? "javascript:helpMenu('display')"
849: : "javascript:helpMenu('open')";
850: my $banner_link = &update_help_link(undef,undef,undef,undef,$stayOnPage);
851:
852: my $title = &mt('Get help');
853:
854: return <<"END";
855: $banner_link
856: <a href="$link" title="$title">$text</a>
857: END
858: }
859:
860: sub help_menu_js {
861: my ($text) = @_;
862:
863: my $stayOnPage =
864: ($env{'browser.interface'} eq 'textual' ||
865: $env{'environment.remote'} eq 'off' );
866:
867: my $width = 620;
868: my $height = 600;
869: my $helptopic=&general_help();
870: my $details_link = '/adm/help/'.$helptopic.'.hlp';
871: my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
872: my $start_page =
873: &Apache::loncommon::start_page('Help Menu', undef,
874: {'frameset' => 1,
875: 'js_ready' => 1,
876: 'add_entries' => {
877: 'border' => '0',
878: 'rows' => "105,*",},});
879: my $end_page =
880: &Apache::loncommon::end_page({'frameset' => 1,
881: 'js_ready' => 1,});
882:
883: my $template .= <<"ENDTEMPLATE";
884: <script type="text/javascript">
885: // <!-- BEGIN LON-CAPA Internal
886: // <![CDATA[
887: var banner_link = '';
888: function helpMenu(target) {
889: var caller = this;
890: if (target == 'open') {
891: var newWindow = null;
892: try {
893: newWindow = window.open($nothing,"helpmenu","HEIGHT=$height,WIDTH=$width,resizable=yes,scrollbars=yes" )
894: }
895: catch(error) {
896: writeHelp(caller);
897: return;
898: }
899: if (newWindow) {
900: caller = newWindow;
901: }
902: }
903: writeHelp(caller);
904: return;
905: }
906: function writeHelp(caller) {
907: caller.document.writeln('$start_page<frame name="bannerframe" src="'+banner_link+'" /><frame name="bodyframe" src="$details_link" /> $end_page')
908: caller.document.close()
909: caller.focus()
910: }
911: // ]]>
912: // END LON-CAPA Internal -->
913: </script>
914: ENDTEMPLATE
915: return $template;
916: }
917:
918: sub help_open_bug {
919: my ($topic, $text, $stayOnPage, $width, $height) = @_;
920: unless ($env{'user.adv'}) { return ''; }
921: unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }
922: $text = "" if (not defined $text);
923: $stayOnPage = 0 if (not defined $stayOnPage);
924: if ($env{'browser.interface'} eq 'textual' ||
925: $env{'environment.remote'} eq 'off' ) {
926: $stayOnPage=1;
927: }
928: $width = 600 if (not defined $width);
929: $height = 600 if (not defined $height);
930:
931: $topic=~s/\W+/\+/g;
932: my $link='';
933: my $template='';
934: my $url=$Apache::lonnet::perlvar{'BugzillaHost'}.'enter_bug.cgi?product=LON-CAPA&bug_file_loc='.
935: &escape($ENV{'REQUEST_URI'}).'&component='.$topic;
936: if (!$stayOnPage)
937: {
938: $link = "javascript:void(open('$url', 'Bugzilla', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
939: }
940: else
941: {
942: $link = $url;
943: }
944: # Add the text
945: if ($text ne "")
946: {
947: $template .=
948: "<table bgcolor='#AA3333' cellspacing='1' cellpadding='1' border='0'><tr>".
949: "<td bgcolor='#FF5555'><a target=\"_top\" href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
950: }
951:
952: # Add the graphic
953: my $title = &mt('Report a Bug');
954: my $bugicon=&lonhttpdurl("/adm/lonMisc/smallBug.gif");
955: $template .= <<"ENDTEMPLATE";
956: <a target="_top" href="$link" title="$title"><img src="$bugicon" border="0" alt="(Bug: $topic)" /></a>
957: ENDTEMPLATE
958: if ($text ne '') { $template.='</td></tr></table>' };
959: return $template;
960:
961: }
962:
963: sub help_open_faq {
964: my ($topic, $text, $stayOnPage, $width, $height) = @_;
965: unless ($env{'user.adv'}) { return ''; }
966: unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }
967: $text = "" if (not defined $text);
968: $stayOnPage = 0 if (not defined $stayOnPage);
969: if ($env{'browser.interface'} eq 'textual' ||
970: $env{'environment.remote'} eq 'off' ) {
971: $stayOnPage=1;
972: }
973: $width = 350 if (not defined $width);
974: $height = 400 if (not defined $height);
975:
976: $topic=~s/\W+/\+/g;
977: my $link='';
978: my $template='';
979: my $url=$Apache::lonnet::perlvar{'FAQHost'}.'/fom/cache/'.$topic.'.html';
980: if (!$stayOnPage)
981: {
982: $link = "javascript:void(open('$url', 'FAQ-O-Matic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
983: }
984: else
985: {
986: $link = $url;
987: }
988:
989: # Add the text
990: if ($text ne "")
991: {
992: $template .=
993: "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
994: "<td bgcolor='#448844'><a target=\"_top\" href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
995: }
996:
997: # Add the graphic
998: my $title = &mt('View the FAQ');
999: my $faqicon=&lonhttpdurl("/adm/lonMisc/smallFAQ.gif");
1000: $template .= <<"ENDTEMPLATE";
1001: <a target="_top" href="$link" title="$title"><img src="$faqicon" border="0" alt="(FAQ: $topic)" /></a>
1002: ENDTEMPLATE
1003: if ($text ne '') { $template.='</td></tr></table>' };
1004: return $template;
1005:
1006: }
1007:
1008: ###############################################################
1009: ###############################################################
1010:
1011: =pod
1012:
1013: =item * change_content_javascript():
1014:
1015: This and the next function allow you to create small sections of an
1016: otherwise static HTML page that you can update on the fly with
1017: Javascript, even in Netscape 4.
1018:
1019: The Javascript fragment returned by this function (no E<lt>scriptE<gt> tag)
1020: must be written to the HTML page once. It will prove the Javascript
1021: function "change(name, content)". Calling the change function with the
1022: name of the section
1023: you want to update, matching the name passed to C<changable_area>, and
1024: the new content you want to put in there, will put the content into
1025: that area.
1026:
1027: B<Note>: Netscape 4 only reserves enough space for the changable area
1028: to contain room for the original contents. You need to "make space"
1029: for whatever changes you wish to make, and be B<sure> to check your
1030: code in Netscape 4. This feature in Netscape 4 is B<not> powerful;
1031: it's adequate for updating a one-line status display, but little more.
1032: This script will set the space to 100% width, so you only need to
1033: worry about height in Netscape 4.
1034:
1035: Modern browsers are much less limiting, and if you can commit to the
1036: user not using Netscape 4, this feature may be used freely with
1037: pretty much any HTML.
1038:
1039: =cut
1040:
1041: sub change_content_javascript {
1042: # If we're on Netscape 4, we need to use Layer-based code
1043: if ($env{'browser.type'} eq 'netscape' &&
1044: $env{'browser.version'} =~ /^4\./) {
1045: return (<<NETSCAPE4);
1046: function change(name, content) {
1047: doc = document.layers[name+"___escape"].layers[0].document;
1048: doc.open();
1049: doc.write(content);
1050: doc.close();
1051: }
1052: NETSCAPE4
1053: } else {
1054: # Otherwise, we need to use semi-standards-compliant code
1055: # (technically, "innerHTML" isn't standard but the equivalent
1056: # is really scary, and every useful browser supports it
1057: return (<<DOMBASED);
1058: function change(name, content) {
1059: element = document.getElementById(name);
1060: element.innerHTML = content;
1061: }
1062: DOMBASED
1063: }
1064: }
1065:
1066: =pod
1067:
1068: =item * changable_area($name, $origContent):
1069:
1070: This provides a "changable area" that can be modified on the fly via
1071: the Javascript code provided in C<change_content_javascript>. $name is
1072: the name you will use to reference the area later; do not repeat the
1073: same name on a given HTML page more then once. $origContent is what
1074: the area will originally contain, which can be left blank.
1075:
1076: =cut
1077:
1078: sub changable_area {
1079: my ($name, $origContent) = @_;
1080:
1081: if ($env{'browser.type'} eq 'netscape' &&
1082: $env{'browser.version'} =~ /^4\./) {
1083: # If this is netscape 4, we need to use the Layer tag
1084: return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>";
1085: } else {
1086: return "<span id='$name'>$origContent</span>";
1087: }
1088: }
1089:
1090: =pod
1091:
1092: =back
1093:
1094: =head1 Excel and CSV file utility routines
1095:
1096: =over 4
1097:
1098: =cut
1099:
1100: ###############################################################
1101: ###############################################################
1102:
1103: =pod
1104:
1105: =item * csv_translate($text)
1106:
1107: Translate $text to allow it to be output as a 'comma separated values'
1108: format.
1109:
1110: =cut
1111:
1112: ###############################################################
1113: ###############################################################
1114: sub csv_translate {
1115: my $text = shift;
1116: $text =~ s/\"/\"\"/g;
1117: $text =~ s/\n/ /g;
1118: return $text;
1119: }
1120:
1121: ###############################################################
1122: ###############################################################
1123:
1124: =pod
1125:
1126: =item * define_excel_formats
1127:
1128: Define some commonly used Excel cell formats.
1129:
1130: Currently supported formats:
1131:
1132: =over 4
1133:
1134: =item header
1135:
1136: =item bold
1137:
1138: =item h1
1139:
1140: =item h2
1141:
1142: =item h3
1143:
1144: =item h4
1145:
1146: =item i
1147:
1148: =item date
1149:
1150: =back
1151:
1152: Inputs: $workbook
1153:
1154: Returns: $format, a hash reference.
1155:
1156: =cut
1157:
1158: ###############################################################
1159: ###############################################################
1160: sub define_excel_formats {
1161: my ($workbook) = @_;
1162: my $format;
1163: $format->{'header'} = $workbook->add_format(bold => 1,
1164: bottom => 1,
1165: align => 'center');
1166: $format->{'bold'} = $workbook->add_format(bold=>1);
1167: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
1168: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
1169: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
1170: $format->{'h4'} = $workbook->add_format(bold=>1, size=>12);
1171: $format->{'i'} = $workbook->add_format(italic=>1);
1172: $format->{'date'} = $workbook->add_format(num_format=>
1173: 'mm/dd/yyyy hh:mm:ss');
1174: return $format;
1175: }
1176:
1177: ###############################################################
1178: ###############################################################
1179:
1180: =pod
1181:
1182: =item * create_workbook
1183:
1184: Create an Excel worksheet. If it fails, output message on the
1185: request object and return undefs.
1186:
1187: Inputs: Apache request object
1188:
1189: Returns (undef) on failure,
1190: Excel worksheet object, scalar with filename, and formats
1191: from &Apache::loncommon::define_excel_formats on success
1192:
1193: =cut
1194:
1195: ###############################################################
1196: ###############################################################
1197: sub create_workbook {
1198: my ($r) = @_;
1199: #
1200: # Create the excel spreadsheet
1201: my $filename = '/prtspool/'.
1202: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1203: time.'_'.rand(1000000000).'.xls';
1204: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1205: if (! defined($workbook)) {
1206: $r->log_error("Error creating excel spreadsheet $filename: $!");
1207: $r->print('<p>'.&mt("Unable to create new Excel file. ".
1208: "This error has been logged. ".
1209: "Please alert your LON-CAPA administrator").
1210: '</p>');
1211: return (undef);
1212: }
1213: #
1214: $workbook->set_tempdir('/home/httpd/perl/tmp');
1215: #
1216: my $format = &Apache::loncommon::define_excel_formats($workbook);
1217: return ($workbook,$filename,$format);
1218: }
1219:
1220: ###############################################################
1221: ###############################################################
1222:
1223: =pod
1224:
1225: =item * create_text_file
1226:
1227: Create a file to write to and eventually make available to the usre.
1228: If file creation fails, outputs an error message on the request object and
1229: return undefs.
1230:
1231: Inputs: Apache request object, and file suffix
1232:
1233: Returns (undef) on failure,
1234: Filehandle and filename on success.
1235:
1236: =cut
1237:
1238: ###############################################################
1239: ###############################################################
1240: sub create_text_file {
1241: my ($r,$suffix) = @_;
1242: if (! defined($suffix)) { $suffix = 'txt'; };
1243: my $fh;
1244: my $filename = '/prtspool/'.
1245: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1246: time.'_'.rand(1000000000).'.'.$suffix;
1247: $fh = Apache::File->new('>/home/httpd'.$filename);
1248: if (! defined($fh)) {
1249: $r->log_error("Couldn't open $filename for output $!");
1250: $r->print("Problems occured in creating the output file. ".
1251: "This error has been logged. ".
1252: "Please alert your LON-CAPA administrator.");
1253: }
1254: return ($fh,$filename)
1255: }
1256:
1257:
1258: =pod
1259:
1260: =back
1261:
1262: =cut
1263:
1264: ###############################################################
1265: ## Home server <option> list generating code ##
1266: ###############################################################
1267:
1268: # ------------------------------------------
1269:
1270: sub domain_select {
1271: my ($name,$value,$multiple)=@_;
1272: my %domains=map {
1273: $_ => $_.' '.$Apache::lonnet::domaindescription{$_}
1274: } &Apache::lonnet::all_domains();
1275: if ($multiple) {
1276: $domains{''}=&mt('Any domain');
1277: return &multiple_select_form($name,$value,4,\%domains);
1278: } else {
1279: return &select_form($name,$value,%domains);
1280: }
1281: }
1282:
1283: #-------------------------------------------
1284:
1285: =pod
1286:
1287: =item * multiple_select_form($name,$value,$size,$hash,$order)
1288:
1289: Returns a string containing a <select> element int multiple mode
1290:
1291:
1292: Args:
1293: $name - name of the <select> element
1294: $value - scalar or array ref of values that should already be selected
1295: $size - number of rows long the select element is
1296: $hash - the elements should be 'option' => 'shown text'
1297: (shown text should already have been &mt())
1298: $order - (optional) array ref of the order to show the elements in
1299:
1300: =cut
1301:
1302: #-------------------------------------------
1303: sub multiple_select_form {
1304: my ($name,$value,$size,$hash,$order)=@_;
1305: my %selected = map { $_ => 1 } ref($value)?@{$value}:($value);
1306: my $output='';
1307: if (! defined($size)) {
1308: $size = 4;
1309: if (scalar(keys(%$hash))<4) {
1310: $size = scalar(keys(%$hash));
1311: }
1312: }
1313: $output.="\n<select name='$name' size='$size' multiple='1'>";
1314: my @order;
1315: if (ref($order) eq 'ARRAY') {
1316: @order = @{$order};
1317: } else {
1318: @order = sort(keys(%$hash));
1319: }
1320: if (exists($$hash{'select_form_order'})) {
1321: @order = @{$$hash{'select_form_order'}};
1322: }
1323:
1324: foreach my $key (@order) {
1325: $output.='<option value="'.&HTML::Entities::encode($key,'"<>&').'" ';
1326: $output.='selected="selected" ' if ($selected{$key});
1327: $output.='>'.$hash->{$key}."</option>\n";
1328: }
1329: $output.="</select>\n";
1330: return $output;
1331: }
1332:
1333: #-------------------------------------------
1334:
1335: =pod
1336:
1337: =item * select_form($defdom,$name,%hash)
1338:
1339: Returns a string containing a <select name='$name' size='1'> form to
1340: allow a user to select options from a hash option_name => displayed text.
1341: See lonrights.pm for an example invocation and use.
1342:
1343: =cut
1344:
1345: #-------------------------------------------
1346: sub select_form {
1347: my ($def,$name,%hash) = @_;
1348: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1349: my @keys;
1350: if (exists($hash{'select_form_order'})) {
1351: @keys=@{$hash{'select_form_order'}};
1352: } else {
1353: @keys=sort(keys(%hash));
1354: }
1355: foreach my $key (@keys) {
1356: $selectform.=
1357: '<option value="'.&HTML::Entities::encode($key,'"<>&').'" '.
1358: ($key eq $def ? 'selected="selected" ' : '').
1359: ">".&mt($hash{$key})."</option>\n";
1360: }
1361: $selectform.="</select>";
1362: return $selectform;
1363: }
1364:
1365: # For display filters
1366:
1367: sub display_filter {
1368: if (!$env{'form.show'}) { $env{'form.show'}=10; }
1369: if (!$env{'form.displayfilter'}) { $env{'form.displayfilter'}='currentfolder'; }
1370: return '<nobr><label>'.&mt('Records [_1]',
1371: &Apache::lonmeta::selectbox('show',$env{'form.show'},undef,
1372: (&mt('all'),10,20,50,100,1000,10000))).
1373: '</label></nobr> <nobr>'.
1374: &mt('Filter [_1]',
1375: &select_form($env{'form.displayfilter'},
1376: 'displayfilter',
1377: ('currentfolder' => 'Current folder/page',
1378: 'containing' => 'Containing phrase',
1379: 'none' => 'None'))).
1380: '<input type="text" name="containingphrase" size="30" value="'.&HTML::Entities::encode($env{'form.containingphrase'}).'" /></nobr>';
1381: }
1382:
1383: sub gradeleveldescription {
1384: my $gradelevel=shift;
1385: my %gradelevels=(0 => 'Not specified',
1386: 1 => 'Grade 1',
1387: 2 => 'Grade 2',
1388: 3 => 'Grade 3',
1389: 4 => 'Grade 4',
1390: 5 => 'Grade 5',
1391: 6 => 'Grade 6',
1392: 7 => 'Grade 7',
1393: 8 => 'Grade 8',
1394: 9 => 'Grade 9',
1395: 10 => 'Grade 10',
1396: 11 => 'Grade 11',
1397: 12 => 'Grade 12',
1398: 13 => 'Grade 13',
1399: 14 => '100 Level',
1400: 15 => '200 Level',
1401: 16 => '300 Level',
1402: 17 => '400 Level',
1403: 18 => 'Graduate Level');
1404: return &mt($gradelevels{$gradelevel});
1405: }
1406:
1407: sub select_level_form {
1408: my ($deflevel,$name)=@_;
1409: unless ($deflevel) { $deflevel=0; }
1410: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1411: for (my $i=0; $i<=18; $i++) {
1412: $selectform.="<option value=\"$i\" ".
1413: ($i==$deflevel ? 'selected="selected" ' : '').
1414: ">".&gradeleveldescription($i)."</option>\n";
1415: }
1416: $selectform.="</select>";
1417: return $selectform;
1418: }
1419:
1420: #-------------------------------------------
1421:
1422: =pod
1423:
1424: =item * select_dom_form($defdom,$name,$includeempty)
1425:
1426: Returns a string containing a <select name='$name' size='1'> form to
1427: allow a user to select the domain to preform an operation in.
1428: See loncreateuser.pm for an example invocation and use.
1429:
1430: If the $includeempty flag is set, it also includes an empty choice ("no domain
1431: selected");
1432:
1433: =cut
1434:
1435: #-------------------------------------------
1436: sub select_dom_form {
1437: my ($defdom,$name,$includeempty) = @_;
1438: my @domains = &Apache::lonnet::all_domains();
1439: if ($includeempty) { @domains=('',@domains); }
1440: my $selectdomain = "<select name=\"$name\" size=\"1\">\n";
1441: foreach my $dom (@domains) {
1442: $selectdomain.="<option value=\"$dom\" ".
1443: ($dom eq $defdom ? 'selected="selected" ' : '').
1444: ">$dom</option>\n";
1445: }
1446: $selectdomain.="</select>";
1447: return $selectdomain;
1448: }
1449:
1450: #-------------------------------------------
1451:
1452: =pod
1453:
1454: =item * get_library_servers($domain)
1455:
1456: Returns a hash which contains keys like '103l3' and values like
1457: 'kirk.lite.msu.edu'. All of the keys will be for machines in the
1458: given $domain.
1459:
1460: =cut
1461:
1462: #-------------------------------------------
1463: sub get_library_servers {
1464: return &Apache::lonnet::get_servers($_[0],'library');
1465: }
1466:
1467: #-------------------------------------------
1468:
1469: =pod
1470:
1471: =item * home_server_option_list($domain)
1472:
1473: returns a string which contains an <option> list to be used in a
1474: <select> form input. See loncreateuser.pm for an example.
1475:
1476: =cut
1477:
1478: #-------------------------------------------
1479: sub home_server_option_list {
1480: my $domain = shift;
1481: my %servers = &get_library_servers($domain);
1482: my $result = '';
1483: foreach my $hostid (sort(keys(%servers))) {
1484: $result.=
1485: '<option value="'.$hostid.'">'.
1486: $hostid.' '.$servers{$hostid}."</option>\n";
1487: }
1488: return $result;
1489: }
1490:
1491: =pod
1492:
1493: =back
1494:
1495: =cut
1496:
1497: ###############################################################
1498: ## Decoding User Agent ##
1499: ###############################################################
1500:
1501: =pod
1502:
1503: =head1 Decoding the User Agent
1504:
1505: =over 4
1506:
1507: =item * &decode_user_agent()
1508:
1509: Inputs: $r
1510:
1511: Outputs:
1512:
1513: =over 4
1514:
1515: =item * $httpbrowser
1516:
1517: =item * $clientbrowser
1518:
1519: =item * $clientversion
1520:
1521: =item * $clientmathml
1522:
1523: =item * $clientunicode
1524:
1525: =item * $clientos
1526:
1527: =back
1528:
1529: =back
1530:
1531: =cut
1532:
1533: ###############################################################
1534: ###############################################################
1535: sub decode_user_agent {
1536: my ($r)=@_;
1537: my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});
1538: my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});
1539: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
1540: if (!$httpbrowser && $r) { $httpbrowser=$r->header_in('User-Agent'); }
1541: my $clientbrowser='unknown';
1542: my $clientversion='0';
1543: my $clientmathml='';
1544: my $clientunicode='0';
1545: for (my $i=0;$i<=$#browsertype;$i++) {
1546: my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
1547: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
1548: $clientbrowser=$bname;
1549: $httpbrowser=~/$vreg/i;
1550: $clientversion=$1;
1551: $clientmathml=($clientversion>=$minv);
1552: $clientunicode=($clientversion>=$univ);
1553: }
1554: }
1555: my $clientos='unknown';
1556: if (($httpbrowser=~/linux/i) ||
1557: ($httpbrowser=~/unix/i) ||
1558: ($httpbrowser=~/ux/i) ||
1559: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
1560: if (($httpbrowser=~/vax/i) ||
1561: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
1562: if ($httpbrowser=~/next/i) { $clientos='next'; }
1563: if (($httpbrowser=~/mac/i) ||
1564: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
1565: if ($httpbrowser=~/win/i) { $clientos='win'; }
1566: if ($httpbrowser=~/embed/i) { $clientos='pda'; }
1567: return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
1568: $clientunicode,$clientos,);
1569: }
1570:
1571: ###############################################################
1572: ## Authentication changing form generation subroutines ##
1573: ###############################################################
1574: ##
1575: ## All of the authform_xxxxxxx subroutines take their inputs in a
1576: ## hash, and have reasonable default values.
1577: ##
1578: ## formname = the name given in the <form> tag.
1579: #-------------------------------------------
1580:
1581: =pod
1582:
1583: =head1 Authentication Routines
1584:
1585: =over 4
1586:
1587: =item * authform_xxxxxx
1588:
1589: The authform_xxxxxx subroutines provide javascript and html forms which
1590: handle some of the conveniences required for authentication forms.
1591: This is not an optimal method, but it works.
1592:
1593: See loncreateuser.pm for invocation and use examples.
1594:
1595: =over 4
1596:
1597: =item * authform_header
1598:
1599: =item * authform_authorwarning
1600:
1601: =item * authform_nochange
1602:
1603: =item * authform_kerberos
1604:
1605: =item * authform_internal
1606:
1607: =item * authform_filesystem
1608:
1609: =back
1610:
1611: =back
1612:
1613: =cut
1614:
1615: #-------------------------------------------
1616: sub authform_header{
1617: my %in = (
1618: formname => 'cu',
1619: kerb_def_dom => '',
1620: @_,
1621: );
1622: $in{'formname'} = 'document.' . $in{'formname'};
1623: my $result='';
1624:
1625: #---------------------------------------------- Code for upper case translation
1626: my $Javascript_toUpperCase;
1627: unless ($in{kerb_def_dom}) {
1628: $Javascript_toUpperCase =<<"END";
1629: switch (choice) {
1630: case 'krb': currentform.elements[choicearg].value =
1631: currentform.elements[choicearg].value.toUpperCase();
1632: break;
1633: default:
1634: }
1635: END
1636: } else {
1637: $Javascript_toUpperCase = "";
1638: }
1639:
1640: my $radioval = "'nochange'";
1641: if (exists($in{'curr_authtype'}) &&
1642: defined($in{'curr_authtype'}) &&
1643: $in{'curr_authtype'} ne '') {
1644: $radioval = "'$in{'curr_authtype'}arg'";
1645: }
1646: my $argfield = 'null';
1647: if ( grep/^mode$/,(keys %in) ) {
1648: if ($in{'mode'} eq 'modifycourse') {
1649: if ( grep/^curr_authtype$/,(keys %in) ) {
1650: $radioval = "'$in{'curr_authtype'}'";
1651: }
1652: if ( grep/^curr_autharg$/,(keys %in) ) {
1653: unless ($in{'curr_autharg'} eq '') {
1654: $argfield = "'$in{'curr_autharg'}'";
1655: }
1656: }
1657: }
1658: }
1659:
1660: $result.=<<"END";
1661: var current = new Object();
1662: current.radiovalue = $radioval;
1663: current.argfield = $argfield;
1664:
1665: function changed_radio(choice,currentform) {
1666: var choicearg = choice + 'arg';
1667: // If a radio button in changed, we need to change the argfield
1668: if (current.radiovalue != choice) {
1669: current.radiovalue = choice;
1670: if (current.argfield != null) {
1671: currentform.elements[current.argfield].value = '';
1672: }
1673: if (choice == 'nochange') {
1674: current.argfield = null;
1675: } else {
1676: current.argfield = choicearg;
1677: switch(choice) {
1678: case 'krb':
1679: currentform.elements[current.argfield].value =
1680: "$in{'kerb_def_dom'}";
1681: break;
1682: default:
1683: break;
1684: }
1685: }
1686: }
1687: return;
1688: }
1689:
1690: function changed_text(choice,currentform) {
1691: var choicearg = choice + 'arg';
1692: if (currentform.elements[choicearg].value !='') {
1693: $Javascript_toUpperCase
1694: // clear old field
1695: if ((current.argfield != choicearg) && (current.argfield != null)) {
1696: currentform.elements[current.argfield].value = '';
1697: }
1698: current.argfield = choicearg;
1699: }
1700: set_auth_radio_buttons(choice,currentform);
1701: return;
1702: }
1703:
1704: function set_auth_radio_buttons(newvalue,currentform) {
1705: var i=0;
1706: while (i < currentform.login.length) {
1707: if (currentform.login[i].value == newvalue) { break; }
1708: i++;
1709: }
1710: if (i == currentform.login.length) {
1711: return;
1712: }
1713: current.radiovalue = newvalue;
1714: currentform.login[i].checked = true;
1715: return;
1716: }
1717: END
1718: return $result;
1719: }
1720:
1721: sub authform_authorwarning{
1722: my $result='';
1723: $result='<i>'.
1724: &mt('As a general rule, only authors or co-authors should be '.
1725: 'filesystem authenticated '.
1726: '(which allows access to the server filesystem).')."</i>\n";
1727: return $result;
1728: }
1729:
1730: sub authform_nochange{
1731: my %in = (
1732: formname => 'document.cu',
1733: kerb_def_dom => 'MSU.EDU',
1734: @_,
1735: );
1736: my $result = '<label>'.&mt('[_1] Do not change login data',
1737: '<input type="radio" name="login" value="nochange" '.
1738: 'checked="checked" onclick="'.
1739: "javascript:changed_radio('nochange',$in{'formname'});".'" />').
1740: '</label>';
1741: return $result;
1742: }
1743:
1744: sub authform_kerberos{
1745: my %in = (
1746: formname => 'document.cu',
1747: kerb_def_dom => 'MSU.EDU',
1748: kerb_def_auth => 'krb4',
1749: @_,
1750: );
1751: my ($check4,$check5,$krbarg);
1752: if ($in{'kerb_def_auth'} eq 'krb5') {
1753: $check5 = " checked=\"on\"";
1754: } else {
1755: $check4 = " checked=\"on\"";
1756: }
1757: $krbarg = $in{'kerb_def_dom'};
1758:
1759: my $krbcheck = "";
1760: if ( grep/^curr_authtype$/,(keys %in) ) {
1761: if ($in{'curr_authtype'} =~ m/^krb/) {
1762: $krbcheck = " checked=\"on\"";
1763: if ( grep/^curr_autharg$/,(keys %in) ) {
1764: $krbarg = $in{'curr_autharg'};
1765: }
1766: }
1767: }
1768:
1769: my $jscall = "javascript:changed_radio('krb',$in{'formname'});";
1770: my $result .= &mt
1771: ('[_1] Kerberos authenticated with domain [_2] '.
1772: '[_3] Version 4 [_4] Version 5 [_5]',
1773: '<label><input type="radio" name="login" value="krb" '.
1774: 'onclick="'.$jscall.'" onchange="'.$jscall.'"'.$krbcheck.' />',
1775: '</label><input type="text" size="10" name="krbarg" '.
1776: 'value="'.$krbarg.'" '.
1777: 'onchange="'.$jscall.'" />',
1778: '<label><input type="radio" name="krbver" value="4" '.$check4.' />',
1779: '</label><label><input type="radio" name="krbver" value="5" '.$check5.' />',
1780: '</label>');
1781: return $result;
1782: }
1783:
1784: sub authform_internal{
1785: my %args = (
1786: formname => 'document.cu',
1787: kerb_def_dom => 'MSU.EDU',
1788: @_,
1789: );
1790:
1791: my $intcheck = "";
1792: my $intarg = 'value=""';
1793: if ( grep/^curr_authtype$/,(keys %args) ) {
1794: if ($args{'curr_authtype'} eq 'int') {
1795: $intcheck = " checked=\"on\"";
1796: if ( grep/^curr_autharg$/,(keys %args) ) {
1797: $intarg = "value=\"$args{'curr_autharg'}\"";
1798: }
1799: }
1800: }
1801:
1802: my $jscall = "javascript:changed_radio('int',$args{'formname'});";
1803: my $result.=&mt
1804: ('[_1] Internally authenticated (with initial password [_2])',
1805: '<label><input type="radio" name="login" value="int" '.$intcheck.
1806: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1807: '</label><input type="text" size="10" name="intarg" '.$intarg.
1808: ' onchange="'.$jscall.'" />');
1809: return $result;
1810: }
1811:
1812: sub authform_local{
1813: my %in = (
1814: formname => 'document.cu',
1815: kerb_def_dom => 'MSU.EDU',
1816: @_,
1817: );
1818:
1819: my $loccheck = "";
1820: my $locarg = 'value=""';
1821: if ( grep/^curr_authtype$/,(keys %in) ) {
1822: if ($in{'curr_authtype'} eq 'loc') {
1823: $loccheck = " checked=\"on\"";
1824: if ( grep/^curr_autharg$/,(keys %in) ) {
1825: $locarg = "value=\"$in{'curr_autharg'}\"";
1826: }
1827: }
1828: }
1829:
1830: my $jscall = "javascript:changed_radio('loc',$in{'formname'});";
1831: my $result.=&mt('[_1] Local Authentication with argument [_2]',
1832: '<label><input type="radio" name="login" value="loc" '.$loccheck.
1833: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1834: '</label><input type="text" size="10" name="locarg" '.$locarg.
1835: ' onchange="'.$jscall.'" />');
1836: return $result;
1837: }
1838:
1839: sub authform_filesystem{
1840: my %in = (
1841: formname => 'document.cu',
1842: kerb_def_dom => 'MSU.EDU',
1843: @_,
1844: );
1845: my $jscall = "javascript:changed_radio('fsys',$in{'formname'});";
1846: my $result.= &mt
1847: ('[_1] Filesystem Authenticated (with initial password [_2])',
1848: '<label><input type="radio" name="login" value="fsys" '.
1849: 'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1850: '</label><input type="text" size="10" name="fsysarg" value="" '.
1851: 'onchange="'.$jscall.'" />');
1852: return $result;
1853: }
1854:
1855: ###############################################################
1856: ## Get Authentication Defaults for Domain ##
1857: ###############################################################
1858:
1859: =pod
1860:
1861: =head1 Domains and Authentication
1862:
1863: Returns default authentication type and an associated argument as
1864: listed in file 'domain.tab'.
1865:
1866: =over 4
1867:
1868: =item * get_auth_defaults
1869:
1870: get_auth_defaults($target_domain) returns the default authentication
1871: type and an associated argument (initial password or a kerberos domain).
1872: These values are stored in lonTabs/domain.tab
1873:
1874: ($def_auth, $def_arg) = &get_auth_defaults($target_domain);
1875:
1876: If target_domain is not found in domain.tab, returns nothing ('').
1877:
1878: =cut
1879:
1880: #-------------------------------------------
1881: sub get_auth_defaults {
1882: my $domain=shift;
1883: return ($Apache::lonnet::domain_auth_def{$domain},$Apache::lonnet::domain_auth_arg_def{$domain});
1884: }
1885: ###############################################################
1886: ## End Get Authentication Defaults for Domain ##
1887: ###############################################################
1888:
1889: ###############################################################
1890: ## Get Kerberos Defaults for Domain ##
1891: ###############################################################
1892: ##
1893: ## Returns default kerberos version and an associated argument
1894: ## as listed in file domain.tab. If not listed, provides
1895: ## appropriate default domain and kerberos version.
1896: ##
1897: #-------------------------------------------
1898:
1899: =pod
1900:
1901: =item * get_kerberos_defaults
1902:
1903: get_kerberos_defaults($target_domain) returns the default kerberos
1904: version and domain. If not found in domain.tabs, it defaults to
1905: version 4 and the domain of the server.
1906:
1907: ($def_version, $def_krb_domain) = &get_kerberos_defaults($target_domain);
1908:
1909: =cut
1910:
1911: #-------------------------------------------
1912: sub get_kerberos_defaults {
1913: my $domain=shift;
1914: my ($krbdef,$krbdefdom) =
1915: &Apache::loncommon::get_auth_defaults($domain);
1916: unless ($krbdef =~/^krb/ && $krbdefdom) {
1917: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
1918: my $krbdefdom=$1;
1919: $krbdefdom=~tr/a-z/A-Z/;
1920: $krbdef = "krb4";
1921: }
1922: return ($krbdef,$krbdefdom);
1923: }
1924:
1925: =pod
1926:
1927: =back
1928:
1929: =cut
1930:
1931: ###############################################################
1932: ## Thesaurus Functions ##
1933: ###############################################################
1934:
1935: =pod
1936:
1937: =head1 Thesaurus Functions
1938:
1939: =over 4
1940:
1941: =item * initialize_keywords
1942:
1943: Initializes the package variable %Keywords if it is empty. Uses the
1944: package variable $thesaurus_db_file.
1945:
1946: =cut
1947:
1948: ###################################################
1949:
1950: sub initialize_keywords {
1951: return 1 if (scalar keys(%Keywords));
1952: # If we are here, %Keywords is empty, so fill it up
1953: # Make sure the file we need exists...
1954: if (! -e $thesaurus_db_file) {
1955: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file".
1956: " failed because it does not exist");
1957: return 0;
1958: }
1959: # Set up the hash as a database
1960: my %thesaurus_db;
1961: if (! tie(%thesaurus_db,'GDBM_File',
1962: $thesaurus_db_file,&GDBM_READER(),0640)){
1963: &Apache::lonnet::logthis("Could not tie \%thesaurus_db to ".
1964: $thesaurus_db_file);
1965: return 0;
1966: }
1967: # Get the average number of appearances of a word.
1968: my $avecount = $thesaurus_db{'average.count'};
1969: # Put keywords (those that appear > average) into %Keywords
1970: while (my ($word,$data)=each (%thesaurus_db)) {
1971: my ($count,undef) = split /:/,$data;
1972: $Keywords{$word}++ if ($count > $avecount);
1973: }
1974: untie %thesaurus_db;
1975: # Remove special values from %Keywords.
1976: foreach my $value ('total.count','average.count') {
1977: delete($Keywords{$value}) if (exists($Keywords{$value}));
1978: }
1979: return 1;
1980: }
1981:
1982: ###################################################
1983:
1984: =pod
1985:
1986: =item * keyword($word)
1987:
1988: Returns true if $word is a keyword. A keyword is a word that appears more
1989: than the average number of times in the thesaurus database. Calls
1990: &initialize_keywords
1991:
1992: =cut
1993:
1994: ###################################################
1995:
1996: sub keyword {
1997: return if (!&initialize_keywords());
1998: my $word=lc(shift());
1999: $word=~s/\W//g;
2000: return exists($Keywords{$word});
2001: }
2002:
2003: ###############################################################
2004:
2005: =pod
2006:
2007: =item * get_related_words
2008:
2009: Look up a word in the thesaurus. Takes a scalar argument and returns
2010: an array of words. If the keyword is not in the thesaurus, an empty array
2011: will be returned. The order of the words returned is determined by the
2012: database which holds them.
2013:
2014: Uses global $thesaurus_db_file.
2015:
2016: =cut
2017:
2018: ###############################################################
2019: sub get_related_words {
2020: my $keyword = shift;
2021: my %thesaurus_db;
2022: if (! -e $thesaurus_db_file) {
2023: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file ".
2024: "failed because the file does not exist");
2025: return ();
2026: }
2027: if (! tie(%thesaurus_db,'GDBM_File',
2028: $thesaurus_db_file,&GDBM_READER(),0640)){
2029: return ();
2030: }
2031: my @Words=();
2032: my $count=0;
2033: if (exists($thesaurus_db{$keyword})) {
2034: # The first element is the number of times
2035: # the word appears. We do not need it now.
2036: my (undef,@RelatedWords) = (split(/:/,$thesaurus_db{$keyword}));
2037: my (undef,$mostfrequentcount)=split(/\,/,$RelatedWords[0]);
2038: my $threshold=$mostfrequentcount/10;
2039: foreach my $possibleword (@RelatedWords) {
2040: my ($word,$wordcount)=split(/\,/,$possibleword);
2041: if ($wordcount>$threshold) {
2042: push(@Words,$word);
2043: $count++;
2044: if ($count>10) { last; }
2045: }
2046: }
2047: }
2048: untie %thesaurus_db;
2049: return @Words;
2050: }
2051:
2052: =pod
2053:
2054: =back
2055:
2056: =cut
2057:
2058: # -------------------------------------------------------------- Plaintext name
2059: =pod
2060:
2061: =head1 User Name Functions
2062:
2063: =over 4
2064:
2065: =item * plainname($uname,$udom,$first)
2066:
2067: Takes a users logon name and returns it as a string in
2068: "first middle last generation" form
2069: if $first is set to 'lastname' then it returns it as
2070: 'lastname generation, firstname middlename' if their is a lastname
2071:
2072: =cut
2073:
2074:
2075: ###############################################################
2076: sub plainname {
2077: my ($uname,$udom,$first)=@_;
2078: my %names=&getnames($uname,$udom);
2079: my $name=&Apache::lonnet::format_name($names{'firstname'},
2080: $names{'middlename'},
2081: $names{'lastname'},
2082: $names{'generation'},$first);
2083: $name=~s/^\s+//;
2084: $name=~s/\s+$//;
2085: $name=~s/\s+/ /g;
2086: if ($name !~ /\S/) { $name=$uname.':'.$udom; }
2087: return $name;
2088: }
2089:
2090: # -------------------------------------------------------------------- Nickname
2091: =pod
2092:
2093: =item * nickname($uname,$udom)
2094:
2095: Gets a users name and returns it as a string as
2096:
2097: ""nickname""
2098:
2099: if the user has a nickname or
2100:
2101: "first middle last generation"
2102:
2103: if the user does not
2104:
2105: =cut
2106:
2107: sub nickname {
2108: my ($uname,$udom)=@_;
2109: my %names=&getnames($uname,$udom);
2110: my $name=$names{'nickname'};
2111: if ($name) {
2112: $name='"'.$name.'"';
2113: } else {
2114: $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
2115: $names{'lastname'}.' '.$names{'generation'};
2116: $name=~s/\s+$//;
2117: $name=~s/\s+/ /g;
2118: }
2119: return $name;
2120: }
2121:
2122: sub getnames {
2123: my ($uname,$udom)=@_;
2124: if ($udom eq 'public' && $uname eq 'public') {
2125: return ('lastname' => &mt('Public'));
2126: }
2127: my $id=$uname.':'.$udom;
2128: my ($names,$cached)=&Apache::lonnet::is_cached_new('namescache',$id);
2129: if ($cached) {
2130: return %{$names};
2131: } else {
2132: my %loadnames=&Apache::lonnet::get('environment',
2133: ['firstname','middlename','lastname','generation','nickname'],
2134: $udom,$uname);
2135: &Apache::lonnet::do_cache_new('namescache',$id,\%loadnames);
2136: return %loadnames;
2137: }
2138: }
2139:
2140: sub getemails {
2141: my ($uname,$udom)=@_;
2142: if ($udom eq 'public' && $uname eq 'public') {
2143: return;
2144: }
2145: if (!$udom) { $udom=$env{'user.domain'}; }
2146: if (!$uname) { $uname=$env{'user.name'}; }
2147: my $id=$uname.':'.$udom;
2148: my ($names,$cached)=&Apache::lonnet::is_cached_new('emailscache',$id);
2149: if ($cached) {
2150: return %{$names};
2151: } else {
2152: my %loadnames=&Apache::lonnet::get('environment',
2153: ['notification','critnotification',
2154: 'permanentemail'],
2155: $udom,$uname);
2156: &Apache::lonnet::do_cache_new('emailscache',$id,\%loadnames);
2157: return %loadnames;
2158: }
2159: }
2160:
2161: # ------------------------------------------------------------------ Screenname
2162:
2163: =pod
2164:
2165: =item * screenname($uname,$udom)
2166:
2167: Gets a users screenname and returns it as a string
2168:
2169: =cut
2170:
2171: sub screenname {
2172: my ($uname,$udom)=@_;
2173: if ($uname eq $env{'user.name'} &&
2174: $udom eq $env{'user.domain'}) {return $env{'environment.screenname'};}
2175: my %names=&Apache::lonnet::get('environment',['screenname'],$udom,$uname);
2176: return $names{'screenname'};
2177: }
2178:
2179:
2180: # ------------------------------------------------------------- Message Wrapper
2181:
2182: sub messagewrapper {
2183: my ($link,$username,$domain,$subject,$text)=@_;
2184: return
2185: '<a href="/adm/email?compose=individual&'.
2186: 'recname='.$username.'&recdom='.$domain.
2187: '&subject='.&escape($subject).'&text='.&escape($text).'" '.
2188: 'title="'.&mt('Send message').'">'.$link.'</a>';
2189: }
2190: # --------------------------------------------------------------- Notes Wrapper
2191:
2192: sub noteswrapper {
2193: my ($link,$un,$do)=@_;
2194: return
2195: "<a href='/adm/email?recordftf=retrieve&recname=$un&recdom=$do'>$link</a>";
2196: }
2197: # ------------------------------------------------------------- Aboutme Wrapper
2198:
2199: sub aboutmewrapper {
2200: my ($link,$username,$domain,$target)=@_;
2201: if (!defined($username) && !defined($domain)) {
2202: return;
2203: }
2204: return '<a href="/adm/'.$domain.'/'.$username.'/aboutme"'.
2205: ($target?' target="$target"':'').' title="'.&mt("View this user's personal page").'">'.$link.'</a>';
2206: }
2207:
2208: # ------------------------------------------------------------ Syllabus Wrapper
2209:
2210:
2211: sub syllabuswrapper {
2212: my ($linktext,$coursedir,$domain,$fontcolor)=@_;
2213: if ($fontcolor) {
2214: $linktext='<font color="'.$fontcolor.'">'.$linktext.'</font>';
2215: }
2216: return qq{<a href="/public/$domain/$coursedir/syllabus">$linktext</a>};
2217: }
2218:
2219: sub track_student_link {
2220: my ($linktext,$sname,$sdom,$target,$start) = @_;
2221: my $link ="/adm/trackstudent?";
2222: my $title = 'View recent activity';
2223: if (defined($sname) && $sname !~ /^\s*$/ &&
2224: defined($sdom) && $sdom !~ /^\s*$/) {
2225: $link .= "selected_student=$sname:$sdom";
2226: $title .= ' of this student';
2227: }
2228: if (defined($target) && $target !~ /^\s*$/) {
2229: $target = qq{target="$target"};
2230: } else {
2231: $target = '';
2232: }
2233: if ($start) { $link.='&start='.$start; }
2234:
2235: return qq{<a href="$link" title="$title" $target>$linktext</a>}.
2236: &help_open_topic('View_recent_activity');
2237: }
2238:
2239: # ===================================================== Display a student photo
2240:
2241:
2242: sub student_image_tag {
2243: my ($domain,$user)=@_;
2244: my $imgsrc=&Apache::lonnet::studentphoto($domain,$user,'jpg');
2245: if (($imgsrc) && ($imgsrc ne '/adm/lonKaputt/lonlogo_broken.gif')) {
2246: return '<img src="'.$imgsrc.'" align="right" />';
2247: } else {
2248: return '';
2249: }
2250: }
2251:
2252: =pod
2253:
2254: =back
2255:
2256: =head1 Access .tab File Data
2257:
2258: =over 4
2259:
2260: =item * languageids()
2261:
2262: returns list of all language ids
2263:
2264: =cut
2265:
2266: sub languageids {
2267: return sort(keys(%language));
2268: }
2269:
2270: =pod
2271:
2272: =item * languagedescription()
2273:
2274: returns description of a specified language id
2275:
2276: =cut
2277:
2278: sub languagedescription {
2279: my $code=shift;
2280: return ($supported_language{$code}?'* ':'').
2281: $language{$code}.
2282: ($supported_language{$code}?' ('.&mt('interface available').')':'');
2283: }
2284:
2285: sub plainlanguagedescription {
2286: my $code=shift;
2287: return $language{$code};
2288: }
2289:
2290: sub supportedlanguagecode {
2291: my $code=shift;
2292: return $supported_language{$code};
2293: }
2294:
2295: =pod
2296:
2297: =item * copyrightids()
2298:
2299: returns list of all copyrights
2300:
2301: =cut
2302:
2303: sub copyrightids {
2304: return sort(keys(%cprtag));
2305: }
2306:
2307: =pod
2308:
2309: =item * copyrightdescription()
2310:
2311: returns description of a specified copyright id
2312:
2313: =cut
2314:
2315: sub copyrightdescription {
2316: return &mt($cprtag{shift(@_)});
2317: }
2318:
2319: =pod
2320:
2321: =item * source_copyrightids()
2322:
2323: returns list of all source copyrights
2324:
2325: =cut
2326:
2327: sub source_copyrightids {
2328: return sort(keys(%scprtag));
2329: }
2330:
2331: =pod
2332:
2333: =item * source_copyrightdescription()
2334:
2335: returns description of a specified source copyright id
2336:
2337: =cut
2338:
2339: sub source_copyrightdescription {
2340: return &mt($scprtag{shift(@_)});
2341: }
2342:
2343: =pod
2344:
2345: =item * filecategories()
2346:
2347: returns list of all file categories
2348:
2349: =cut
2350:
2351: sub filecategories {
2352: return sort(keys(%category_extensions));
2353: }
2354:
2355: =pod
2356:
2357: =item * filecategorytypes()
2358:
2359: returns list of file types belonging to a given file
2360: category
2361:
2362: =cut
2363:
2364: sub filecategorytypes {
2365: my ($cat) = @_;
2366: return @{$category_extensions{lc($cat)}};
2367: }
2368:
2369: =pod
2370:
2371: =item * fileembstyle()
2372:
2373: returns embedding style for a specified file type
2374:
2375: =cut
2376:
2377: sub fileembstyle {
2378: return $fe{lc(shift(@_))};
2379: }
2380:
2381: sub filemimetype {
2382: return $fm{lc(shift(@_))};
2383: }
2384:
2385:
2386: sub filecategoryselect {
2387: my ($name,$value)=@_;
2388: return &select_form($value,$name,
2389: '' => &mt('Any category'),
2390: map { $_,$_ } sort(keys(%category_extensions)));
2391: }
2392:
2393: =pod
2394:
2395: =item * filedescription()
2396:
2397: returns description for a specified file type
2398:
2399: =cut
2400:
2401: sub filedescription {
2402: my $file_description = $fd{lc(shift())};
2403: $file_description =~ s:([\[\]]):~$1:g;
2404: return &mt($file_description);
2405: }
2406:
2407: =pod
2408:
2409: =item * filedescriptionex()
2410:
2411: returns description for a specified file type with
2412: extra formatting
2413:
2414: =cut
2415:
2416: sub filedescriptionex {
2417: my $ex=shift;
2418: my $file_description = $fd{lc($ex)};
2419: $file_description =~ s:([\[\]]):~$1:g;
2420: return '.'.$ex.' '.&mt($file_description);
2421: }
2422:
2423: # End of .tab access
2424: =pod
2425:
2426: =back
2427:
2428: =cut
2429:
2430: # ------------------------------------------------------------------ File Types
2431: sub fileextensions {
2432: return sort(keys(%fe));
2433: }
2434:
2435: # ----------------------------------------------------------- Display Languages
2436: # returns a hash with all desired display languages
2437: #
2438:
2439: sub display_languages {
2440: my %languages=();
2441: foreach my $lang (&preferred_languages()) {
2442: $languages{$lang}=1;
2443: }
2444: &get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']);
2445: if ($env{'form.displaylanguage'}) {
2446: foreach my $lang (split(/\s*(\,|\;|\:)\s*/,$env{'form.displaylanguage'})) {
2447: $languages{$lang}=1;
2448: }
2449: }
2450: return %languages;
2451: }
2452:
2453: sub preferred_languages {
2454: my @languages=();
2455: if ($env{'course.'.$env{'request.course.id'}.'.languages'}) {
2456: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,
2457: $env{'course.'.$env{'request.course.id'}.'.languages'}));
2458: }
2459: if ($env{'environment.languages'}) {
2460: @languages=(@languages,
2461: split(/\s*(\,|\;|\:)\s*/,$env{'environment.languages'}));
2462: }
2463: my $browser=(split(/\;/,$ENV{'HTTP_ACCEPT_LANGUAGE'}))[0];
2464: if ($browser) {
2465: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$browser));
2466: }
2467: if ($Apache::lonnet::domain_lang_def{$env{'user.domain'}}) {
2468: @languages=(@languages,
2469: $Apache::lonnet::domain_lang_def{$env{'user.domain'}});
2470: }
2471: if ($Apache::lonnet::domain_lang_def{$env{'request.role.domain'}}) {
2472: @languages=(@languages,
2473: $Apache::lonnet::domain_lang_def{$env{'request.role.domain'}});
2474: }
2475: if ($Apache::lonnet::domain_lang_def{
2476: $Apache::lonnet::perlvar{'lonDefDomain'}}) {
2477: @languages=(@languages,
2478: $Apache::lonnet::domain_lang_def{
2479: $Apache::lonnet::perlvar{'lonDefDomain'}});
2480: }
2481: # turn "en-ca" into "en-ca,en"
2482: my @genlanguages;
2483: foreach my $lang (@languages) {
2484: unless ($lang=~/\w/) { next; }
2485: push (@genlanguages,$lang);
2486: if ($lang=~/(\-|\_)/) {
2487: push(@genlanguages,(split(/(\-|\_)/,$lang))[0]);
2488: }
2489: }
2490: return @genlanguages;
2491: }
2492:
2493: ###############################################################
2494: ## Student Answer Attempts ##
2495: ###############################################################
2496:
2497: =pod
2498:
2499: =head1 Alternate Problem Views
2500:
2501: =over 4
2502:
2503: =item * get_previous_attempt($symb, $username, $domain, $course,
2504: $getattempt, $regexp, $gradesub)
2505:
2506: Return string with previous attempt on problem. Arguments:
2507:
2508: =over 4
2509:
2510: =item * $symb: Problem, including path
2511:
2512: =item * $username: username of the desired student
2513:
2514: =item * $domain: domain of the desired student
2515:
2516: =item * $course: Course ID
2517:
2518: =item * $getattempt: Leave blank for all attempts, otherwise put
2519: something
2520:
2521: =item * $regexp: if string matches this regexp, the string will be
2522: sent to $gradesub
2523:
2524: =item * $gradesub: routine that processes the string if it matches $regexp
2525:
2526: =back
2527:
2528: The output string is a table containing all desired attempts, if any.
2529:
2530: =cut
2531:
2532: sub get_previous_attempt {
2533: my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub)=@_;
2534: my $prevattempts='';
2535: no strict 'refs';
2536: if ($symb) {
2537: my (%returnhash)=
2538: &Apache::lonnet::restore($symb,$course,$domain,$username);
2539: if ($returnhash{'version'}) {
2540: my %lasthash=();
2541: my $version;
2542: for ($version=1;$version<=$returnhash{'version'};$version++) {
2543: foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) {
2544: $lasthash{$key}=$returnhash{$version.':'.$key};
2545: }
2546: }
2547: $prevattempts='<table border="0" width="100%"><tr><td bgcolor="#777777">';
2548: $prevattempts.='<table border="0" width="100%"><tr bgcolor="#e6ffff"><td>History</td>';
2549: foreach my $key (sort(keys(%lasthash))) {
2550: my ($ign,@parts) = split(/\./,$key);
2551: if ($#parts > 0) {
2552: my $data=$parts[-1];
2553: pop(@parts);
2554: $prevattempts.='<td>Part '.join('.',@parts).'<br />'.$data.' </td>';
2555: } else {
2556: if ($#parts == 0) {
2557: $prevattempts.='<th>'.$parts[0].'</th>';
2558: } else {
2559: $prevattempts.='<th>'.$ign.'</th>';
2560: }
2561: }
2562: }
2563: if ($getattempt eq '') {
2564: for ($version=1;$version<=$returnhash{'version'};$version++) {
2565: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Transaction '.$version.'</td>';
2566: foreach my $key (sort(keys(%lasthash))) {
2567: my $value;
2568: if ($key =~ /timestamp/) {
2569: $value=scalar(localtime($returnhash{$version.':'.$key}));
2570: } else {
2571: $value=$returnhash{$version.':'.$key};
2572: }
2573: $prevattempts.='<td>'.&unescape($value).' </td>';
2574: }
2575: }
2576: }
2577: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Current</td>';
2578: foreach my $key (sort(keys(%lasthash))) {
2579: my $value;
2580: if ($key =~ /timestamp/) {
2581: $value=scalar(localtime($lasthash{$key}));
2582: } else {
2583: $value=$lasthash{$key};
2584: }
2585: $value=&unescape($value);
2586: if ($key =~/$regexp$/ && (defined &$gradesub)) {$value = &$gradesub($value)}
2587: $prevattempts.='<td>'.$value.' </td>';
2588: }
2589: $prevattempts.='</tr></table></td></tr></table>';
2590: } else {
2591: $prevattempts='Nothing submitted - no attempts.';
2592: }
2593: } else {
2594: $prevattempts='No data.';
2595: }
2596: }
2597:
2598: sub relative_to_absolute {
2599: my ($url,$output)=@_;
2600: my $parser=HTML::TokeParser->new(\$output);
2601: my $token;
2602: my $thisdir=$url;
2603: my @rlinks=();
2604: while ($token=$parser->get_token) {
2605: if ($token->[0] eq 'S') {
2606: if ($token->[1] eq 'a') {
2607: if ($token->[2]->{'href'}) {
2608: $rlinks[$#rlinks+1]=$token->[2]->{'href'};
2609: }
2610: } elsif ($token->[1] eq 'img' || $token->[1] eq 'embed' ) {
2611: $rlinks[$#rlinks+1]=$token->[2]->{'src'};
2612: } elsif ($token->[1] eq 'base') {
2613: $thisdir=$token->[2]->{'href'};
2614: }
2615: }
2616: }
2617: $thisdir=~s-/[^/]*$--;
2618: foreach my $link (@rlinks) {
2619: unless (($link=~/^http:\/\//i) ||
2620: ($link=~/^\//) ||
2621: ($link=~/^javascript:/i) ||
2622: ($link=~/^mailto:/i) ||
2623: ($link=~/^\#/)) {
2624: my $newlocation=&Apache::lonnet::hreflocation($thisdir,$link);
2625: $output=~s/(\"|\'|\=\s*)\Q$link\E(\"|\'|\s|\>)/$1$newlocation$2/;
2626: }
2627: }
2628: # -------------------------------------------------- Deal with Applet codebases
2629: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
2630: return $output;
2631: }
2632:
2633: =pod
2634:
2635: =item * get_student_view
2636:
2637: show a snapshot of what student was looking at
2638:
2639: =cut
2640:
2641: sub get_student_view {
2642: my ($symb,$username,$domain,$courseid,$target,$moreenv) = @_;
2643: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
2644: my (%form);
2645: my @elements=('symb','courseid','domain','username');
2646: foreach my $element (@elements) {
2647: $form{'grade_'.$element}=eval '$'.$element #'
2648: }
2649: if (defined($moreenv)) {
2650: %form=(%form,%{$moreenv});
2651: }
2652: if (defined($target)) { $form{'grade_target'} = $target; }
2653: $feedurl=&Apache::lonnet::clutter($feedurl);
2654: my $userview=&Apache::lonnet::ssi_body($feedurl,%form);
2655: $userview=~s/\<body[^\>]*\>//gi;
2656: $userview=~s/\<\/body\>//gi;
2657: $userview=~s/\<html\>//gi;
2658: $userview=~s/\<\/html\>//gi;
2659: $userview=~s/\<head\>//gi;
2660: $userview=~s/\<\/head\>//gi;
2661: $userview=~s/action\s*\=/would_be_action\=/gi;
2662: $userview=&relative_to_absolute($feedurl,$userview);
2663: return $userview;
2664: }
2665:
2666: =pod
2667:
2668: =item * get_student_answers()
2669:
2670: show a snapshot of how student was answering problem
2671:
2672: =cut
2673:
2674: sub get_student_answers {
2675: my ($symb,$username,$domain,$courseid,%form) = @_;
2676: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
2677: my (%moreenv);
2678: my @elements=('symb','courseid','domain','username');
2679: foreach my $element (@elements) {
2680: $moreenv{'grade_'.$element}=eval '$'.$element #'
2681: }
2682: $moreenv{'grade_target'}='answer';
2683: %moreenv=(%form,%moreenv);
2684: $feedurl = &Apache::lonnet::clutter($feedurl);
2685: &Apache::lonenc::check_encrypt(\$feedurl);
2686: my $userview=&Apache::lonnet::ssi($feedurl,%moreenv);
2687: return $userview;
2688: }
2689:
2690: =pod
2691:
2692: =item * &submlink()
2693:
2694: Inputs: $text $uname $udom $symb $target
2695:
2696: Returns: A link to grades.pm such as to see the SUBM view of a student
2697:
2698: =cut
2699:
2700: ###############################################
2701: sub submlink {
2702: my ($text,$uname,$udom,$symb,$target)=@_;
2703: if (!($uname && $udom)) {
2704: (my $cursymb, my $courseid,$udom,$uname)=
2705: &Apache::lonnet::whichuser($symb);
2706: if (!$symb) { $symb=$cursymb; }
2707: }
2708: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
2709: $symb=&escape($symb);
2710: if ($target) { $target="target=\"$target\""; }
2711: return '<a href="/adm/grades?&command=submission&'.
2712: 'symb='.$symb.'&student='.$uname.
2713: '&userdom='.$udom.'" '.$target.'>'.$text.'</a>';
2714: }
2715: ##############################################
2716:
2717: =pod
2718:
2719: =item * &pgrdlink()
2720:
2721: Inputs: $text $uname $udom $symb $target
2722:
2723: Returns: A link to grades.pm such as to see the PGRD view of a student
2724:
2725: =cut
2726:
2727: ###############################################
2728: sub pgrdlink {
2729: my $link=&submlink(@_);
2730: $link=~s/(&command=submission)/$1&showgrading=yes/;
2731: return $link;
2732: }
2733: ##############################################
2734:
2735: =pod
2736:
2737: =item * &pprmlink()
2738:
2739: Inputs: $text $uname $udom $symb $target
2740:
2741: Returns: A link to parmset.pm such as to see the PPRM view of a
2742: student and a specific resource
2743:
2744: =cut
2745:
2746: ###############################################
2747: sub pprmlink {
2748: my ($text,$uname,$udom,$symb,$target)=@_;
2749: if (!($uname && $udom)) {
2750: (my $cursymb, my $courseid,$udom,$uname)=
2751: &Apache::lonnet::whichuser($symb);
2752: if (!$symb) { $symb=$cursymb; }
2753: }
2754: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
2755: $symb=&escape($symb);
2756: if ($target) { $target="target=\"$target\""; }
2757: return '<a href="/adm/parmset?&command=set&'.
2758: 'symb='.$symb.'&uname='.$uname.
2759: '&udom='.$udom.'" '.$target.'>'.$text.'</a>';
2760: }
2761: ##############################################
2762:
2763: =pod
2764:
2765: =back
2766:
2767: =cut
2768:
2769: ###############################################
2770:
2771:
2772: sub timehash {
2773: my @ltime=localtime(shift);
2774: return ( 'seconds' => $ltime[0],
2775: 'minutes' => $ltime[1],
2776: 'hours' => $ltime[2],
2777: 'day' => $ltime[3],
2778: 'month' => $ltime[4]+1,
2779: 'year' => $ltime[5]+1900,
2780: 'weekday' => $ltime[6],
2781: 'dayyear' => $ltime[7]+1,
2782: 'dlsav' => $ltime[8] );
2783: }
2784:
2785: sub utc_string {
2786: my ($date)=@_;
2787: return strftime("%Y%m%dT%H%M%SZ",gmtime($date));
2788: }
2789:
2790: sub maketime {
2791: my %th=@_;
2792: return POSIX::mktime(
2793: ($th{'seconds'},$th{'minutes'},$th{'hours'},
2794: $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,-1));
2795: }
2796:
2797: #########################################
2798:
2799: sub findallcourses {
2800: my ($roles,$uname,$udom) = @_;
2801: my %roles;
2802: if (ref($roles)) { %roles = map { $_ => 1 } @{$roles}; }
2803: my %courses;
2804: my $now=time;
2805: if (!defined($uname)) {
2806: $uname = $env{'user.name'};
2807: }
2808: if (!defined($udom)) {
2809: $udom = $env{'user.domain'};
2810: }
2811: if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
2812: my %roleshash = &Apache::lonnet::dump('roles',$udom,$uname);
2813: if (!%roles) {
2814: %roles = (
2815: cc => 1,
2816: in => 1,
2817: ep => 1,
2818: ta => 1,
2819: cr => 1,
2820: st => 1,
2821: );
2822: }
2823: foreach my $entry (keys(%roleshash)) {
2824: my ($trole,$tend,$tstart) = split(/_/,$roleshash{$entry});
2825: if ($trole =~ /^cr/) {
2826: next if (!exists($roles{$trole}) && !exists($roles{'cr'}));
2827: } else {
2828: next if (!exists($roles{$trole}));
2829: }
2830: if ($tend) {
2831: next if ($tend < $now);
2832: }
2833: if ($tstart) {
2834: next if ($tstart > $now);
2835: }
2836: my ($cdom,$cnum,$sec,$cnumpart,$secpart,$role,$realsec);
2837: (undef,$cdom,$cnumpart,$secpart) = split(/\//,$entry);
2838: if ($secpart eq '') {
2839: ($cnum,$role) = split(/_/,$cnumpart);
2840: $sec = 'none';
2841: $realsec = '';
2842: } else {
2843: $cnum = $cnumpart;
2844: ($sec,$role) = split(/_/,$secpart);
2845: $realsec = $sec;
2846: }
2847: $courses{$cdom.'_'.$cnum}{$sec} = $trole.'/'.$cdom.'/'.$cnum.'/'.$realsec;
2848: }
2849: } else {
2850: foreach my $key (keys(%env)) {
2851: if ( $key=~m{^user\.role\.(\w+)\./($match_domain)/($match_courseid)/?(\w*)$} ||
2852: $key=~m{^user\.role\.(cr/$match_domain/$match_username/\w+)\./($match_domain)/($match_courseid)/?(\w*)$}) {
2853: my ($role,$cdom,$cnum,$sec) = ($1,$2,$3,$4);
2854: next if ($role eq 'ca' || $role eq 'aa');
2855: next if (%roles && !exists($roles{$role}));
2856: my ($starttime,$endtime)=split(/\./,$env{$key});
2857: my $active=1;
2858: if ($starttime) {
2859: if ($now<$starttime) { $active=0; }
2860: }
2861: if ($endtime) {
2862: if ($now>$endtime) { $active=0; }
2863: }
2864: if ($active) {
2865: if ($sec eq '') {
2866: $sec = 'none';
2867: }
2868: $courses{$cdom.'_'.$cnum}{$sec} =
2869: $role.'/'.$cdom.'/'.$cnum.'/'.$sec;
2870: }
2871: }
2872: }
2873: }
2874: return %courses;
2875: }
2876:
2877: ###############################################
2878:
2879: sub blockcheck {
2880: my ($setters,$activity,$uname,$udom) = @_;
2881:
2882: if (!defined($udom)) {
2883: $udom = $env{'user.domain'};
2884: }
2885: if (!defined($uname)) {
2886: $uname = $env{'user.name'};
2887: }
2888:
2889: # If uname and udom are for a course, check for blocks in the course.
2890:
2891: if (&Apache::lonnet::is_course($udom,$uname)) {
2892: my %records = &Apache::lonnet::dump('comm_block',$udom,$uname);
2893: my ($startblock,$endblock)=&get_blocks($setters,$activity,$udom,$uname);
2894: return ($startblock,$endblock);
2895: }
2896:
2897: my $startblock = 0;
2898: my $endblock = 0;
2899: my %live_courses = &findallcourses(undef,$uname,$udom);
2900:
2901: # If uname is for a user, and activity is course-specific, i.e.,
2902: # boards, chat or groups, check for blocking in current course only.
2903:
2904: if (($activity eq 'boards' || $activity eq 'chat' ||
2905: $activity eq 'groups') && ($env{'request.course.id'})) {
2906: foreach my $key (keys(%live_courses)) {
2907: if ($key ne $env{'request.course.id'}) {
2908: delete($live_courses{$key});
2909: }
2910: }
2911: }
2912:
2913: my $otheruser = 0;
2914: my %own_courses;
2915: if ((($uname ne $env{'user.name'})) || ($udom ne $env{'user.domain'})) {
2916: # Resource belongs to user other than current user.
2917: $otheruser = 1;
2918: # Gather courses for current user
2919: %own_courses =
2920: &findallcourses(undef,$env{'user.name'},$env{'user.domain'});
2921: }
2922:
2923: # Gather active course roles - course coordinator, instructor,
2924: # exam proctor, ta, student, or custom role.
2925:
2926: foreach my $course (keys(%live_courses)) {
2927: my ($cdom,$cnum);
2928: if ((defined($env{'course.'.$course.'.domain'})) && (defined($env{'course.'.$course.'.num'}))) {
2929: $cdom = $env{'course.'.$course.'.domain'};
2930: $cnum = $env{'course.'.$course.'.num'};
2931: } else {
2932: ($cdom,$cnum) = split(/_/,$course);
2933: }
2934: my $no_ownblock = 0;
2935: my $no_userblock = 0;
2936: if ($otheruser) {
2937: # Check if current user has 'evb' priv for this
2938: if (defined($own_courses{$course})) {
2939: foreach my $sec (keys(%{$own_courses{$course}})) {
2940: my $checkrole = 'cm./'.$cdom.'/'.$cnum;
2941: if ($sec ne 'none') {
2942: $checkrole .= '/'.$sec;
2943: }
2944: if (&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) {
2945: $no_ownblock = 1;
2946: last;
2947: }
2948: }
2949: }
2950: # if they have 'evb' priv and are currently not playing student
2951: next if (($no_ownblock) &&
2952: ($env{'request.role'} !~ m{^st\./$cdom/$cnum}));
2953: }
2954: foreach my $sec (keys(%{$live_courses{$course}})) {
2955: my $checkrole = 'cm./'.$cdom.'/'.$cnum;
2956: if ($sec ne 'none') {
2957: $checkrole .= '/'.$sec;
2958: }
2959: if ($otheruser) {
2960: # Resource belongs to user other than current user.
2961: # Assemble privs for that user, and check for 'evb' priv.
2962: my ($trole,$tdom,$tnum,$tsec);
2963: my $entry = $live_courses{$course}{$sec};
2964: if ($entry =~ /^cr/) {
2965: ($trole,$tdom,$tnum,$tsec) =
2966: ($entry =~ m|^(cr/$match_domain/$match_username/\w+)\./($match_domain)/($match_username)/?(\w*)$|);
2967: } else {
2968: ($trole,$tdom,$tnum,$tsec) = split(/\//,$entry);
2969: }
2970: my ($spec,$area,$trest,%allroles,%userroles);
2971: $area = '/'.$tdom.'/'.$tnum;
2972: $trest = $tnum;
2973: if ($tsec ne '') {
2974: $area .= '/'.$tsec;
2975: $trest .= '/'.$tsec;
2976: }
2977: $spec = $trole.'.'.$area;
2978: if ($trole =~ /^cr/) {
2979: &Apache::lonnet::custom_roleprivs(\%allroles,$trole,
2980: $tdom,$spec,$trest,$area);
2981: } else {
2982: &Apache::lonnet::standard_roleprivs(\%allroles,$trole,
2983: $tdom,$spec,$trest,$area);
2984: }
2985: my ($author,$adv) = &Apache::lonnet::set_userprivs(\%userroles,\%allroles);
2986: if ($userroles{'user.priv.'.$checkrole} =~ /evb\&([^\:]*)/) {
2987: if ($1) {
2988: $no_userblock = 1;
2989: last;
2990: }
2991: }
2992: } else {
2993: # Resource belongs to current user
2994: # Check for 'evb' priv via lonnet::allowed().
2995: if (&Apache::lonnet::allowed('evb',undef,undef,$checkrole)) {
2996: $no_ownblock = 1;
2997: last;
2998: }
2999: }
3000: }
3001: # if they have the evb priv and are currently not playing student
3002: next if (($no_ownblock) &&
3003: ($env{'request.role'} !~ m{^st\./\Q$cdom\E/\Q$cnum\E}));
3004: next if ($no_userblock);
3005:
3006: # Retrieve blocking times and identity of blocker for course
3007: # of specified user, unless user has 'evb' privilege.
3008:
3009: my ($start,$end)=&get_blocks($setters,$activity,$cdom,$cnum);
3010: if (($start != 0) &&
3011: (($startblock == 0) || ($startblock > $start))) {
3012: $startblock = $start;
3013: }
3014: if (($end != 0) &&
3015: (($endblock == 0) || ($endblock < $end))) {
3016: $endblock = $end;
3017: }
3018: }
3019: return ($startblock,$endblock);
3020: }
3021:
3022: sub get_blocks {
3023: my ($setters,$activity,$cdom,$cnum) = @_;
3024: my $startblock = 0;
3025: my $endblock = 0;
3026: my $course = $cdom.'_'.$cnum;
3027: $setters->{$course} = {};
3028: $setters->{$course}{'staff'} = [];
3029: $setters->{$course}{'times'} = [];
3030: my %records = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
3031: foreach my $record (keys(%records)) {
3032: my ($start,$end) = ($record =~ m/^(\d+)____(\d+)$/);
3033: if ($start <= time && $end >= time) {
3034: my ($staff_name,$staff_dom,$title,$blocks) =
3035: &parse_block_record($records{$record});
3036: if ($blocks->{$activity} eq 'on') {
3037: push(@{$$setters{$course}{'staff'}},[$staff_name,$staff_dom]);
3038: push(@{$$setters{$course}{'times'}}, [$start,$end]);
3039: if ( ($startblock == 0) || ($startblock > $start) ) {
3040: $startblock = $start;
3041: }
3042: if ( ($endblock == 0) || ($endblock < $end) ) {
3043: $endblock = $end;
3044: }
3045: }
3046: }
3047: }
3048: return ($startblock,$endblock);
3049: }
3050:
3051: sub parse_block_record {
3052: my ($record) = @_;
3053: my ($setuname,$setudom,$title,$blocks);
3054: if (ref($record) eq 'HASH') {
3055: ($setuname,$setudom) = split(/:/,$record->{'setter'});
3056: $title = &unescape($record->{'event'});
3057: $blocks = $record->{'blocks'};
3058: } else {
3059: my @data = split(/:/,$record,3);
3060: if (scalar(@data) eq 2) {
3061: $title = $data[1];
3062: ($setuname,$setudom) = split(/@/,$data[0]);
3063: } else {
3064: ($setuname,$setudom,$title) = @data;
3065: }
3066: $blocks = { 'com' => 'on' };
3067: }
3068: return ($setuname,$setudom,$title,$blocks);
3069: }
3070:
3071: sub build_block_table {
3072: my ($startblock,$endblock,$setters) = @_;
3073: my %lt = &Apache::lonlocal::texthash(
3074: 'cacb' => 'Currently active communication blocks',
3075: 'cour' => 'Course',
3076: 'dura' => 'Duration',
3077: 'blse' => 'Block set by'
3078: );
3079: my $output;
3080: $output = '<br />'.$lt{'cacb'}.':<br />';
3081: $output .= &start_data_table();
3082: $output .= '
3083: <tr>
3084: <th>'.$lt{'cour'}.'</th>
3085: <th>'.$lt{'dura'}.'</th>
3086: <th>'.$lt{'blse'}.'</th>
3087: </tr>
3088: ';
3089: foreach my $course (keys(%{$setters})) {
3090: my %courseinfo=&Apache::lonnet::coursedescription($course);
3091: for (my $i=0; $i<@{$$setters{$course}{staff}}; $i++) {
3092: my ($uname,$udom) = @{$$setters{$course}{staff}[$i]};
3093: my $fullname = &plainname($uname,$udom);
3094: if (defined($env{'user.name'}) && defined($env{'user.domain'})
3095: && $env{'user.name'} ne 'public'
3096: && $env{'user.domain'} ne 'public') {
3097: $fullname = &aboutmewrapper($fullname,$uname,$udom);
3098: }
3099: my ($openblock,$closeblock) = @{$$setters{$course}{times}[$i]};
3100: $openblock = &Apache::lonlocal::locallocaltime($openblock);
3101: $closeblock= &Apache::lonlocal::locallocaltime($closeblock);
3102: $output .= &Apache::loncommon::start_data_table_row().
3103: '<td>'.$courseinfo{'description'}.'</td>'.
3104: '<td>'.$openblock.' to '.$closeblock.'</td>'.
3105: '<td>'.$fullname.'</td>'.
3106: &Apache::loncommon::end_data_table_row();
3107: }
3108: }
3109: $output .= &end_data_table();
3110: }
3111:
3112: sub blocking_status {
3113: my ($activity,$uname,$udom) = @_;
3114: my %setters;
3115: my ($blocked,$output,$ownitem,$is_course);
3116: my ($startblock,$endblock)=&blockcheck(\%setters,$activity,$uname,$udom);
3117: if ($startblock && $endblock) {
3118: $blocked = 1;
3119: if (wantarray) {
3120: my $category;
3121: if ($activity eq 'boards') {
3122: $category = 'Discussion posts in this course';
3123: } elsif ($activity eq 'blogs') {
3124: $category = 'Blogs';
3125: } elsif ($activity eq 'port') {
3126: if (defined($uname) && defined($udom)) {
3127: if ($uname eq $env{'user.name'} &&
3128: $udom eq $env{'user.domain'}) {
3129: $ownitem = 1;
3130: }
3131: }
3132: $is_course = &Apache::lonnet::is_course($udom,$uname);
3133: if ($ownitem) {
3134: $category = 'Your portfolio files';
3135: } elsif ($is_course) {
3136: my $coursedesc;
3137: foreach my $course (keys(%setters)) {
3138: my %courseinfo =
3139: &Apache::lonnet::coursedescription($course);
3140: $coursedesc = $courseinfo{'description'};
3141: }
3142: $category = "Group files in the course '$coursedesc'";
3143: } else {
3144: $category = 'Portfolio files belonging to ';
3145: if ($env{'user.name'} eq 'public' &&
3146: $env{'user.domain'} eq 'public') {
3147: $category .= &plainname($uname,$udom);
3148: } else {
3149: $category .= &aboutmewrapper(&plainname($uname,$udom),$uname,$udom);
3150: }
3151: }
3152: } elsif ($activity eq 'groups') {
3153: $category = 'Groups in this course';
3154: }
3155: my $showstart = &Apache::lonlocal::locallocaltime($startblock);
3156: my $showend = &Apache::lonlocal::locallocaltime($endblock);
3157: $output = '<br />'.&mt('[_1] will be inaccessible between [_2] and [_3] because communication is being blocked.',$category,$showstart,$showend).'<br />';
3158: if (!($activity eq 'port' && !($ownitem) && !($is_course))) {
3159: $output .= &build_block_table($startblock,$endblock,\%setters);
3160: }
3161: }
3162: }
3163: if (wantarray) {
3164: return ($blocked,$output);
3165: } else {
3166: return $blocked;
3167: }
3168: }
3169:
3170: ###############################################
3171:
3172: =pod
3173:
3174: =head1 Domain Template Functions
3175:
3176: =over 4
3177:
3178: =item * &determinedomain()
3179:
3180: Inputs: $domain (usually will be undef)
3181:
3182: Returns: Determines which domain should be used for designs
3183:
3184: =cut
3185:
3186: ###############################################
3187: sub determinedomain {
3188: my $domain=shift;
3189: if (! $domain) {
3190: # Determine domain if we have not been given one
3191: $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
3192: if ($env{'user.domain'}) { $domain=$env{'user.domain'}; }
3193: if ($env{'request.role.domain'}) {
3194: $domain=$env{'request.role.domain'};
3195: }
3196: }
3197: return $domain;
3198: }
3199: ###############################################
3200: =pod
3201:
3202: =item * &domainlogo()
3203:
3204: Inputs: $domain (usually will be undef)
3205:
3206: Returns: A link to a domain logo, if the domain logo exists.
3207: If the domain logo does not exist, a description of the domain.
3208:
3209: =cut
3210:
3211: ###############################################
3212: sub domainlogo {
3213: my $domain = &determinedomain(shift);
3214: # See if there is a logo
3215: if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') {
3216: my $logo=&lonhttpdurl("/adm/lonDomLogos/$domain.gif");
3217: return '<img src="'.$logo.'" alt="'.$domain.'" />';
3218: } elsif(exists($Apache::lonnet::domaindescription{$domain})) {
3219: return $Apache::lonnet::domaindescription{$domain};
3220: } else {
3221: return '';
3222: }
3223: }
3224: ##############################################
3225:
3226: =pod
3227:
3228: =item * &designparm()
3229:
3230: Inputs: $which parameter; $domain (usually will be undef)
3231:
3232: Returns: value of designparamter $which
3233:
3234: =cut
3235:
3236:
3237: ##############################################
3238: sub designparm {
3239: my ($which,$domain)=@_;
3240: if ($env{'browser.blackwhite'} eq 'on') {
3241: if ($which=~/\.(font|alink|vlink|link)$/) {
3242: return '#000000';
3243: }
3244: if ($which=~/\.(pgbg|sidebg)$/) {
3245: return '#FFFFFF';
3246: }
3247: if ($which=~/\.tabbg$/) {
3248: return '#CCCCCC';
3249: }
3250: }
3251: if (exists($env{'environment.color.'.$which})) {
3252: return $env{'environment.color.'.$which};
3253: }
3254: $domain=&determinedomain($domain);
3255: if (exists($designhash{$domain.'.'.$which})) {
3256: return $designhash{$domain.'.'.$which};
3257: } else {
3258: return $designhash{'default.'.$which};
3259: }
3260: }
3261:
3262: ###############################################
3263: ###############################################
3264:
3265: =pod
3266:
3267: =back
3268:
3269: =head1 HTTP Helpers
3270:
3271: =over 4
3272:
3273: =item * &bodytag()
3274:
3275: Returns a uniform header for LON-CAPA web pages.
3276:
3277: Inputs:
3278:
3279: =over 4
3280:
3281: =item * $title, A title to be displayed on the page.
3282:
3283: =item * $function, the current role (can be undef).
3284:
3285: =item * $addentries, extra parameters for the <body> tag.
3286:
3287: =item * $bodyonly, if defined, only return the <body> tag.
3288:
3289: =item * $domain, if defined, force a given domain.
3290:
3291: =item * $forcereg, if page should register as content page (relevant for
3292: text interface only)
3293:
3294: =item * $customtitle, alternate text to use instead of $title
3295: in the title box that appears, this text
3296: is not auto translated like the $title is
3297:
3298: =item * $notopbar, if true, keep the 'what is this' info but remove the
3299: navigational links
3300:
3301: =item * $bgcolor, used to override the bgcolor on a webpage to a specific value
3302:
3303: =item * $notitle, if true keep the nav controls, but remove the title bar
3304:
3305: =item * $no_inline_link, if true and in remote mode, don't show the
3306: 'Switch To Inline Menu' link
3307:
3308: =item * $args, optional argument valid values are
3309: no_auto_mt_title -> prevents &mt()ing the title arg
3310:
3311: =back
3312:
3313: Returns: A uniform header for LON-CAPA web pages.
3314: If $bodyonly is nonzero, a string containing a <body> tag will be returned.
3315: If $bodyonly is undef or zero, an html string containing a <body> tag and
3316: other decorations will be returned.
3317:
3318: =cut
3319:
3320: sub bodytag {
3321: my ($title,$function,$addentries,$bodyonly,$domain,$forcereg,$customtitle,
3322: $notopbar,$bgcolor,$notitle,$no_inline_link,$args)=@_;
3323:
3324: if (!$args->{'no_auto_mt_title'}) { $title = &mt($title); }
3325:
3326: $function = &get_users_function() if (!$function);
3327: my $img = &designparm($function.'.img',$domain);
3328: my $font = &designparm($function.'.font',$domain);
3329: my $pgbg = $bgcolor || &designparm($function.'.pgbg',$domain);
3330:
3331: my %design = ( 'style' => 'margin-top: 0px',
3332: 'bgcolor' => $pgbg,
3333: 'text' => $font,
3334: 'alink' => &designparm($function.'.alink',$domain),
3335: 'vlink' => &designparm($function.'.vlink',$domain),
3336: 'link' => &designparm($function.'.link',$domain),);
3337: @design{keys(%$addentries)} = @$addentries{keys(%$addentries)};
3338:
3339: # role and realm
3340: my ($role,$realm) = split(/\./,$env{'request.role'},2);
3341: if ($role eq 'ca') {
3342: my ($rdom,$rname) = ($realm =~ m{^/($match_domain)/($match_username)$});
3343: $realm = &plainname($rname,$rdom);
3344: }
3345: # realm
3346: if ($env{'request.course.id'}) {
3347: if ($env{'request.role'} !~ /^cr/) {
3348: $role = &Apache::lonnet::plaintext($role,&course_type());
3349: }
3350: $realm = $env{'course.'.$env{'request.course.id'}.'.description'};
3351: } else {
3352: $role = &Apache::lonnet::plaintext($role);
3353: }
3354:
3355: if (!$realm) { $realm=' '; }
3356: # Set messages
3357: my $messages=&domainlogo($domain);
3358: # Port for miniserver
3359: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
3360: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
3361:
3362: my $extra_body_attr = &make_attr_string($forcereg,\%design);
3363:
3364: # construct main body tag
3365: my $bodytag = "<body $extra_body_attr>".
3366: &Apache::lontexconvert::init_math_support();
3367:
3368: if ($bodyonly
3369: || ($env{'request.state'} eq 'construct'
3370: && $env{'environment.remote'} ne 'off' )) {
3371: return $bodytag;
3372: } elsif ($env{'browser.interface'} eq 'textual') {
3373: # Accessibility
3374:
3375: $bodytag.=&Apache::lonmenu::menubuttons($forcereg,$forcereg);
3376: if (!$notitle) {
3377: $bodytag.='<h1>LON-CAPA: '.$title.'</h1>';
3378: }
3379: return $bodytag;
3380: }
3381:
3382: my $name = &plainname($env{'user.name'},$env{'user.domain'});
3383: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
3384: undef($role);
3385: } else {
3386: $name = &aboutmewrapper($name,$env{'user.name'},$env{'user.domain'});
3387: }
3388:
3389: my $roleinfo=(<<ENDROLE);
3390: <td class="LC_title_bar_who">
3391: <div class="LC_title_bar_name">
3392: $name
3393:
3394: </div>
3395: <div class="LC_title_bar_role">
3396: $role
3397: </div>
3398: <div class="LC_title_bar_realm">
3399: $realm
3400: </div>
3401: </td>
3402: ENDROLE
3403:
3404: my $titleinfo = '<span class="LC_title_bar_title">'.$title.'</span>';
3405: if ($customtitle) {
3406: $titleinfo = $customtitle;
3407: }
3408: #
3409: # Extra info if you are the DC
3410: my $dc_info = '';
3411: if ($env{'user.adv'} && exists($env{'user.role.dc./'.
3412: $env{'course.'.$env{'request.course.id'}.
3413: '.domain'}.'/'})) {
3414: my $cid = $env{'request.course.id'};
3415: $dc_info.= $cid.' '.$env{'course.'.$cid.'.internal.coursecode'};
3416: $dc_info =~ s/\s+$//;
3417: $dc_info = '('.$dc_info.')';
3418: }
3419:
3420: if ($env{'environment.remote'} eq 'off') {
3421: # No Remote
3422: if ($env{'request.state'} eq 'construct') {
3423: $forcereg=1;
3424: }
3425:
3426: if (!$customtitle && $env{'request.state'} eq 'construct') {
3427: # this is for resources; directories have customtitle, and crumbs
3428: # and select recent are created in lonpubdir.pm
3429: my ($uname,$thisdisfn)=
3430: ($env{'request.filename'} =~ m|^/home/([^/]+)/public_html/(.*)|);
3431: my $formaction='/priv/'.$uname.'/'.$thisdisfn;
3432: $formaction=~s/\/+/\//g;
3433:
3434: my $parentpath = '';
3435: my $lastitem = '';
3436: if ($thisdisfn =~ m-(.+/)([^/]*)$-) {
3437: $parentpath = $1;
3438: $lastitem = $2;
3439: } else {
3440: $lastitem = $thisdisfn;
3441: }
3442: $titleinfo =
3443: &Apache::loncommon::help_open_menu('','',3,'Authoring').
3444: '<b>Construction Space</b>: '.
3445: '<form name="dirs" method="post" action="'.$formaction
3446: .'" target="_top"><tt><b>'
3447: .&Apache::lonhtmlcommon::crumbs($uname.'/'.$parentpath,'_top','/priv','','+1',1)."<font size=\"+1\">$lastitem</font></b></tt><br />"
3448: .&Apache::lonhtmlcommon::select_recent('construct','recent','this.form.action=this.form.recent.value;this.form.submit()')
3449: .'</form>'
3450: .&Apache::lonmenu::constspaceform();
3451: }
3452:
3453: my $titletable;
3454: if (!$notitle) {
3455: $titletable =
3456: '<table id="LC_title_bar">'.
3457: "<tr><td> $titleinfo $dc_info</td>".$roleinfo.
3458: '</tr></table>';
3459: }
3460: if ($notopbar) {
3461: $bodytag .= $titletable;
3462: } else {
3463: if ($env{'request.state'} eq 'construct') {
3464: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,$forcereg,
3465: $titletable);
3466: } else {
3467: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,$forcereg).
3468: $titletable;
3469: }
3470: }
3471: return $bodytag;
3472: }
3473:
3474: #
3475: # Top frame rendering, Remote is up
3476: #
3477:
3478: my $upperleft='<img src="http://'.$ENV{'HTTP_HOST'}.':'.
3479: $lonhttpdPort.$img.'" alt="'.$function.'" />';
3480:
3481: # Explicit link to get inline menu
3482: my $menu= ($no_inline_link?''
3483: :'<br /><a href="/adm/remote?action=collapse">'.&mt('Switch to Inline Menu Mode').'</a>');
3484: #
3485: if ($notitle) {
3486: return $bodytag;
3487: }
3488: return(<<ENDBODY);
3489: $bodytag
3490: <table id="LC_title_bar" class="LC_with_remote">
3491: <tr><td class="LC_title_bar_role_logo">$upperleft</td>
3492: <td class="LC_title_bar_domain_logo">$messages </td>
3493: </tr>
3494: <tr><td>$titleinfo $dc_info $menu</td>
3495: $roleinfo
3496: </tr>
3497: </table>
3498: ENDBODY
3499: }
3500:
3501: sub make_attr_string {
3502: my ($register,$attr_ref) = @_;
3503:
3504: if ($attr_ref && !ref($attr_ref)) {
3505: die("addentries Must be a hash ref ".
3506: join(':',caller(1))." ".
3507: join(':',caller(0))." ");
3508: }
3509:
3510: if ($register) {
3511: my ($on_load,$on_unload);
3512: foreach my $key (keys(%{$attr_ref})) {
3513: if (lc($key) eq 'onload') {
3514: $on_load.=$attr_ref->{$key}.';';
3515: delete($attr_ref->{$key});
3516:
3517: } elsif (lc($key) eq 'onunload') {
3518: $on_unload.=$attr_ref->{$key}.';';
3519: delete($attr_ref->{$key});
3520: }
3521: }
3522: $attr_ref->{'onload'} =
3523: &Apache::lonmenu::loadevents(). $on_load;
3524: $attr_ref->{'onunload'}=
3525: &Apache::lonmenu::unloadevents().$on_unload;
3526: }
3527:
3528: # Accessibility font enhance
3529: if ($env{'browser.fontenhance'} eq 'on') {
3530: my $style;
3531: foreach my $key (keys(%{$attr_ref})) {
3532: if (lc($key) eq 'style') {
3533: $style.=$attr_ref->{$key}.';';
3534: delete($attr_ref->{$key});
3535: }
3536: }
3537: $attr_ref->{'style'}=$style.'; font-size: x-large;';
3538: }
3539:
3540: if ($env{'browser.blackwhite'} eq 'on') {
3541: delete($attr_ref->{'font'});
3542: delete($attr_ref->{'link'});
3543: delete($attr_ref->{'alink'});
3544: delete($attr_ref->{'vlink'});
3545: delete($attr_ref->{'bgcolor'});
3546: delete($attr_ref->{'background'});
3547: }
3548:
3549: my $attr_string;
3550: foreach my $attr (keys(%$attr_ref)) {
3551: $attr_string .= " $attr=\"".$attr_ref->{$attr}.'" ';
3552: }
3553: return $attr_string;
3554: }
3555:
3556:
3557: ###############################################
3558: ###############################################
3559:
3560: =pod
3561:
3562: =back
3563:
3564: =head1 HTML Helpers
3565:
3566: =over 4
3567:
3568: =item * &endbodytag()
3569:
3570: Returns a uniform footer for LON-CAPA web pages.
3571:
3572: Inputs: none
3573:
3574: =back
3575:
3576: =cut
3577:
3578: sub endbodytag {
3579: my $endbodytag='</body>';
3580: $endbodytag=&Apache::lontexconvert::jsMath_process()."\n".$endbodytag;
3581: if ( exists( $env{'internal.head.redirect'} ) ) {
3582: $endbodytag=
3583: "<br /><a href=\"$env{'internal.head.redirect'}\">".
3584: &mt('Continue').'</a>'.
3585: $endbodytag;
3586: }
3587: return $endbodytag;
3588: }
3589:
3590: =pod
3591:
3592: =over 4
3593:
3594: =item * &standard_css()
3595:
3596: Returns a style sheet
3597:
3598: Inputs: (all optional)
3599: domain -> force to color decorate a page for a specific
3600: domain
3601: function -> force usage of a specific rolish color scheme
3602: bgcolor -> override the default page bgcolor
3603:
3604: =back
3605:
3606: =cut
3607:
3608: sub standard_css {
3609: my ($function,$domain,$bgcolor) = @_;
3610: $function = &get_users_function() if (!$function);
3611: my $img = &designparm($function.'.img', $domain);
3612: my $tabbg = &designparm($function.'.tabbg', $domain);
3613: my $font = &designparm($function.'.font', $domain);
3614: my $sidebg = &designparm($function.'.sidebg',$domain);
3615: my $pgbg_or_bgcolor =
3616: $bgcolor ||
3617: &designparm($function.'.pgbg', $domain);
3618: my $pgbg = &designparm($function.'.pgbg', $domain);
3619: my $alink = &designparm($function.'.alink', $domain);
3620: my $vlink = &designparm($function.'.vlink', $domain);
3621: my $link = &designparm($function.'.link', $domain);
3622:
3623: my $sans = 'Arial,Helvetica,sans-serif';
3624: my $mono = 'monospace';
3625: my $data_table_head = $tabbg;
3626: my $data_table_light = '#EEEEEE';
3627: my $data_table_dark = '#DDDDDD';
3628: my $data_table_darker = '#CCCCCC';
3629: my $data_table_highlight = '#FFFF00';
3630: my $mail_new = '#FFBB77';
3631: my $mail_new_hover = '#DD9955';
3632: my $mail_read = '#BBBB77';
3633: my $mail_read_hover = '#999944';
3634: my $mail_replied = '#AAAA88';
3635: my $mail_replied_hover = '#888855';
3636: my $mail_other = '#99BBBB';
3637: my $mail_other_hover = '#669999';
3638: my $table_header = '#DDDDDD';
3639: my $feedback_link_bg = '#BBBBBB';
3640:
3641: my $border = ($env{'browser.type'} eq 'explorer') ? '0px 2px 0px 2px'
3642: : '0px 3px 0px 4px';
3643:
3644: return <<END;
3645: h1, h2, h3, th { font-family: $sans }
3646: a:focus { color: red; background: yellow }
3647: table.thinborder,
3648: table.LC_optres_prior {
3649: border-collapse: collapse;
3650: }
3651: table.thinborder tr th {
3652: border-style: solid;
3653: border-width: 1px;
3654: background: $tabbg;
3655: }
3656: table.thinborder tr td,
3657: table.LC_optres_prior tr td {
3658: border-style: solid;
3659: border-width: 1px
3660: }
3661:
3662: form, .inline { display: inline; }
3663: .center { text-align: center; }
3664: .LC_filename {font-family: $mono;}
3665: .LC_error {
3666: color: red;
3667: font-size: larger;
3668: }
3669: .LC_warning,
3670: .LC_diff_removed {
3671: color: red;
3672: }
3673: .LC_success,
3674: .LC_diff_added {
3675: color: green;
3676: }
3677: .LC_icon {
3678: border: 0px;
3679: }
3680:
3681: table.LC_pastsubmission {
3682: border: 1px solid black;
3683: margin: 2px;
3684: }
3685:
3686: table#LC_top_nav, table#LC_menubuttons {
3687: width: 100%;
3688: background: $pgbg;
3689: border: 2px;
3690: border-collapse: separate;
3691: padding: 0px;
3692: }
3693:
3694: table#LC_title_bar, table.LC_breadcrumbs, table#LC_nav_location,
3695: table#LC_title_bar.LC_with_remote {
3696: width: 100%;
3697: border-color: $pgbg;
3698: border-style: solid;
3699: border-width: $border;
3700:
3701: background: $pgbg;
3702: font-family: $sans;
3703: border-collapse: collapse;
3704: padding: 0px;
3705: }
3706:
3707: table.LC_docs_path {
3708: width: 100%;
3709: border: 0;
3710: background: $pgbg;
3711: font-family: $sans;
3712: border-collapse: collapse;
3713: padding: 0px;
3714: }
3715:
3716: table#LC_title_bar td {
3717: background: $tabbg;
3718: }
3719: table#LC_title_bar td.LC_title_bar_who {
3720: background: $tabbg;
3721: color: $font;
3722: font: small $sans;
3723: text-align: right;
3724: }
3725: span.LC_metadata {
3726: font-family: $sans;
3727: }
3728: span.LC_title_bar_title {
3729: font: bold x-large $sans;
3730: }
3731: table#LC_title_bar td.LC_title_bar_domain_logo {
3732: background: $sidebg;
3733: text-align: right;
3734: padding: 0px;
3735: }
3736: table#LC_title_bar td.LC_title_bar_role_logo {
3737: background: $sidebg;
3738: padding: 0px;
3739: }
3740:
3741: table#LC_menubuttons_mainmenu {
3742: background: $pgbg;
3743: border: 0px;
3744: border-spacing: 1px;
3745: padding: 0px 1px;
3746: margin: 0px;
3747: border-collapse: separate;
3748: }
3749: table#LC_menubuttons img, table#LC_menubuttons_mainmenu img {
3750: border: 0px;
3751: }
3752: table#LC_top_nav td {
3753: background: $tabbg;
3754: border: 0px;
3755: font-size: small;
3756: }
3757: table#LC_top_nav td a, div#LC_top_nav a {
3758: color: $font;
3759: font-family: $sans;
3760: }
3761: table#LC_top_nav td.LC_top_nav_logo {
3762: background: $tabbg;
3763: text-align: left;
3764: white-space: nowrap;
3765: width: 31px;
3766: }
3767: table#LC_top_nav td.LC_top_nav_logo img {
3768: border: 0px;
3769: vertical-align: bottom;
3770: }
3771: table#LC_top_nav td.LC_top_nav_exit,
3772: table#LC_top_nav td.LC_top_nav_help {
3773: width: 2.0em;
3774: }
3775: table#LC_top_nav td.LC_top_nav_login {
3776: width: 4.0em;
3777: text-align: center;
3778: }
3779: table.LC_breadcrumbs td, table.LC_docs_path td {
3780: background: $tabbg;
3781: color: $font;
3782: font-family: $sans;
3783: font-size: smaller;
3784: }
3785: table.LC_breadcrumbs td.LC_breadcrumbs_component,
3786: table.LC_docs_path td.LC_docs_path_component {
3787: background: $tabbg;
3788: color: $font;
3789: font-family: $sans;
3790: font-size: larger;
3791: text-align: right;
3792: }
3793: td.LC_table_cell_checkbox {
3794: text-align: center;
3795: }
3796:
3797: .LC_menubuttons_inline_text {
3798: color: $font;
3799: font-family: $sans;
3800: font-size: smaller;
3801: }
3802:
3803: td.LC_menubuttons_text {
3804: color: $font;
3805: font-family: $sans;
3806: }
3807: td.LC_menubuttons_img {
3808: background: $tabbg;
3809: }
3810: .LC_current_location {
3811: font-family: $sans;
3812: background: $tabbg;
3813: }
3814: .LC_new_mail {
3815: font-family: $sans;
3816: font-weight: bold;
3817: }
3818:
3819: table.LC_aboutme_port {
3820: border: 0px;
3821: border-collapse: collapse;
3822: border-spacing: 0px;
3823: }
3824: table.LC_data_table, table.LC_mail_list {
3825: border: 1px solid #000000;
3826: border-collapse: separate;
3827: border-spacing: 1px;
3828: }
3829: .LC_data_table_dense {
3830: font-size: small;
3831: }
3832: table.LC_nested_outer {
3833: border: 1px solid #000000;
3834: border-collapse: separate;
3835: border-spacing: 0px;
3836: width: 100%;
3837: }
3838: table.LC_nested {
3839: border: 0px;
3840: border-collapse: separate;
3841: border-spacing: 0px;
3842: width: 100%;
3843: }
3844: table.LC_data_table tr th, table.LC_calendar tr th, table.LC_mail_list tr th {
3845: font-weight: bold;
3846: background-color: $data_table_head;
3847: font-size: smaller;
3848: }
3849: table.LC_data_table tr td,
3850: table.LC_aboutme_port tr td {
3851: background-color: $data_table_light;
3852: padding: 2px;
3853: }
3854: table.LC_data_table tr.LC_even_row td,
3855: table.LC_aboutme_port tr.LC_even_row td {
3856: background-color: $data_table_dark;
3857: }
3858: table.LC_data_table tr.LC_data_table_highlight td {
3859: background-color: $data_table_darker;
3860: }
3861: table.LC_data_table tr.LC_empty_row td,
3862: table.LC_nested tr.LC_empty_row td {
3863: background-color: #FFFFFF;
3864: font-weight: bold;
3865: font-style: italic;
3866: text-align: center;
3867: padding: 8px;
3868: }
3869: table.LC_nested tr.LC_empty_row td {
3870: padding: 4ex
3871: }
3872: table.LC_nested_outer tr th {
3873: font-weight: bold;
3874: background-color: $data_table_head;
3875: font-size: smaller;
3876: border-bottom: 1px solid #000000;
3877: }
3878: table.LC_nested_outer tr td.LC_subheader {
3879: background-color: $data_table_head;
3880: font-weight: bold;
3881: font-size: small;
3882: border-bottom: 1px solid #000000;
3883: text-align: right;
3884: }
3885: table.LC_nested tr.LC_info_row td {
3886: background-color: #CCC;
3887: font-weight: bold;
3888: font-size: small;
3889: text-align: center;
3890: }
3891: table.LC_nested tr.LC_info_row td.LC_left_item {
3892: text-align: left;
3893: }
3894: table.LC_nested td {
3895: background-color: #FFF;
3896: font-size: small;
3897: }
3898: table.LC_nested_outer tr th.LC_right_item,
3899: table.LC_nested tr.LC_info_row td.LC_right_item,
3900: table.LC_nested tr.LC_odd_row td.LC_right_item,
3901: table.LC_nested tr td.LC_right_item {
3902: text-align: right;
3903: }
3904:
3905: table.LC_nested tr.LC_odd_row td {
3906: background-color: #EEE;
3907: }
3908:
3909: table.LC_createuser {
3910: }
3911:
3912: table.LC_createuser tr.LC_section_row td {
3913: font-size: smaller;
3914: }
3915:
3916: table.LC_createuser tr.LC_info_row td {
3917: background-color: #CCC;
3918: font-weight: bold;
3919: text-align: center;
3920: }
3921:
3922: table.LC_calendar {
3923: border: 1px solid #000000;
3924: border-collapse: collapse;
3925: }
3926: table.LC_calendar_pickdate {
3927: font-size: xx-small;
3928: }
3929: table.LC_calendar tr td {
3930: border: 1px solid #000000;
3931: vertical-align: top;
3932: }
3933: table.LC_calendar tr td.LC_calendar_day_empty {
3934: background-color: $data_table_dark;
3935: }
3936: table.LC_calendar tr td.LC_calendar_day_current {
3937: background-color: $data_table_highlight;
3938: }
3939:
3940: table.LC_mail_list tr.LC_mail_new {
3941: background-color: $mail_new;
3942: }
3943: table.LC_mail_list tr.LC_mail_new:hover {
3944: background-color: $mail_new_hover;
3945: }
3946: table.LC_mail_list tr.LC_mail_read {
3947: background-color: $mail_read;
3948: }
3949: table.LC_mail_list tr.LC_mail_read:hover {
3950: background-color: $mail_read_hover;
3951: }
3952: table.LC_mail_list tr.LC_mail_replied {
3953: background-color: $mail_replied;
3954: }
3955: table.LC_mail_list tr.LC_mail_replied:hover {
3956: background-color: $mail_replied_hover;
3957: }
3958: table.LC_mail_list tr.LC_mail_other {
3959: background-color: $mail_other;
3960: }
3961: table.LC_mail_list tr.LC_mail_other:hover {
3962: background-color: $mail_other_hover;
3963: }
3964: table.LC_mail_list tr.LC_mail_even {
3965: }
3966: table.LC_mail_list tr.LC_mail_odd {
3967: }
3968:
3969:
3970: table#LC_portfolio_actions {
3971: width: auto;
3972: background: $pgbg;
3973: border: 0px;
3974: border-spacing: 2px 2px;
3975: padding: 0px;
3976: margin: 0px;
3977: border-collapse: separate;
3978: }
3979: table#LC_portfolio_actions td.LC_label {
3980: background: $tabbg;
3981: text-align: right;
3982: }
3983: table#LC_portfolio_actions td.LC_value {
3984: background: $tabbg;
3985: }
3986:
3987: table#LC_cstr_controls {
3988: width: 100%;
3989: border-collapse: collapse;
3990: }
3991: table#LC_cstr_controls tr td {
3992: border: 4px solid $pgbg;
3993: padding: 4px;
3994: text-align: center;
3995: background: $tabbg;
3996: }
3997: table#LC_cstr_controls tr th {
3998: border: 4px solid $pgbg;
3999: background: $table_header;
4000: text-align: center;
4001: font-family: $sans;
4002: font-size: smaller;
4003: }
4004:
4005: table#LC_browser {
4006:
4007: }
4008: table#LC_browser tr th {
4009: background: $table_header;
4010: }
4011: table#LC_browser tr td {
4012: padding: 2px;
4013: }
4014: table#LC_browser tr.LC_browser_file,
4015: table#LC_browser tr.LC_browser_file_published {
4016: background: #CCFF88;
4017: }
4018: table#LC_browser tr.LC_browser_file_locked,
4019: table#LC_browser tr.LC_browser_file_unpublished {
4020: background: #FFAA99;
4021: }
4022: table#LC_browser tr.LC_browser_file_obsolete {
4023: background: #AAAAAA;
4024: }
4025: table#LC_browser tr.LC_browser_file_modified,
4026: table#LC_browser tr.LC_browser_file_metamodified {
4027: background: #FFFF77;
4028: }
4029: table#LC_browser tr.LC_browser_folder {
4030: background: #CCCCFF;
4031: }
4032: span.LC_current_location {
4033: font-size: x-large;
4034: background: $pgbg;
4035: }
4036:
4037: span.LC_parm_menu_item {
4038: font-size: larger;
4039: font-family: $sans;
4040: }
4041: span.LC_parm_scope_all {
4042: color: red;
4043: }
4044: span.LC_parm_scope_folder {
4045: color: green;
4046: }
4047: span.LC_parm_scope_resource {
4048: color: orange;
4049: }
4050: span.LC_parm_part {
4051: color: blue;
4052: }
4053: span.LC_parm_folder, span.LC_parm_symb {
4054: font-size: x-small;
4055: font-family: $mono;
4056: color: #AAAAAA;
4057: }
4058:
4059: td.LC_parm_overview_level_menu, td.LC_parm_overview_map_menu,
4060: td.LC_parm_overview_parm_selectors, td.LC_parm_overview_parm_restrictions {
4061: border: 1px solid black;
4062: border-collapse: collapse;
4063: }
4064: table.LC_parm_overview_restrictions td {
4065: border-width: 1px 4px 1px 4px;
4066: border-style: solid;
4067: border-color: $pgbg;
4068: text-align: center;
4069: }
4070: table.LC_parm_overview_restrictions th {
4071: background: $tabbg;
4072: border-width: 1px 4px 1px 4px;
4073: border-style: solid;
4074: border-color: $pgbg;
4075: }
4076: table#LC_helpmenu {
4077: border: 0px;
4078: height: 55px;
4079: border-spacing: 0px;
4080: }
4081:
4082: table#LC_helpmenu fieldset legend {
4083: font-size: larger;
4084: font-weight: bold;
4085: }
4086: table#LC_helpmenu_links {
4087: width: 100%;
4088: border: 1px solid black;
4089: background: $pgbg;
4090: padding: 0px;
4091: border-spacing: 1px;
4092: }
4093: table#LC_helpmenu_links tr td {
4094: padding: 1px;
4095: background: $tabbg;
4096: text-align: center;
4097: font-weight: bold;
4098: }
4099:
4100: table#LC_helpmenu_links a:link, table#LC_helpmenu_links a:visited,
4101: table#LC_helpmenu_links a:active {
4102: text-decoration: none;
4103: color: $font;
4104: }
4105: table#LC_helpmenu_links a:hover {
4106: text-decoration: underline;
4107: color: $vlink;
4108: }
4109:
4110: .LC_chrt_popup_exists {
4111: border: 1px solid #339933;
4112: margin: -1px;
4113: }
4114: .LC_chrt_popup_up {
4115: border: 1px solid yellow;
4116: margin: -1px;
4117: }
4118: .LC_chrt_popup {
4119: border: 1px solid #8888FF;
4120: background: #CCCCFF;
4121: }
4122:
4123: table.LC_pick_box {
4124: width: 100%;
4125: border-collapse: separate;
4126: background: white;
4127: border: 1px solid black;
4128: border-spacing: 1px;
4129: }
4130: table.LC_pick_box td.LC_pick_box_title {
4131: background: $tabbg;
4132: font-weight: bold;
4133: text-align: right;
4134: width: 184px;
4135: padding: 8px;
4136: }
4137: table.LC_pick_box td.LC_pick_box_separator {
4138: padding: 0px;
4139: height: 1px;
4140: background: black;
4141: }
4142: table.LC_pick_box td.LC_pick_box_submit {
4143: text-align: right;
4144: }
4145:
4146: table.LC_group_priv_box {
4147: background: white;
4148: border: 1px solid black;
4149: border-spacing: 1px;
4150: }
4151: table.LC_group_priv_box td.LC_pick_box_title {
4152: background: $tabbg;
4153: font-weight: bold;
4154: text-align: right;
4155: width: 184px;
4156: }
4157: table.LC_group_priv_box td.LC_groups_fixed {
4158: background: $data_table_light;
4159: text-align: center;
4160: }
4161: table.LC_group_priv_box td.LC_groups_optional {
4162: background: $data_table_dark;
4163: text-align: center;
4164: }
4165: table.LC_group_priv_box td.LC_groups_functionality {
4166: background: $data_table_darker;
4167: text-align: center;
4168: font-weight: bold;
4169: }
4170: table.LC_group_priv td {
4171: text-align: left;
4172: padding: 0px;
4173: }
4174:
4175: table.LC_notify_front_page {
4176: background: white;
4177: border: 1px solid black;
4178: padding: 8px;
4179: }
4180: table.LC_notify_front_page td {
4181: padding: 8px;
4182: }
4183: .LC_navbuttons {
4184: margin: 2ex 0ex 2ex 0ex;
4185: }
4186: .LC_topic_bar {
4187: font-family: $sans;
4188: font-weight: bold;
4189: width: 100%;
4190: background: $tabbg;
4191: vertical-align: middle;
4192: margin: 2ex 0ex 2ex 0ex;
4193: }
4194: .LC_topic_bar span {
4195: vertical-align: middle;
4196: }
4197: .LC_topic_bar img {
4198: vertical-align: bottom;
4199: }
4200: table.LC_course_group_status {
4201: margin: 20px;
4202: }
4203: table.LC_status_selector td {
4204: vertical-align: top;
4205: text-align: center;
4206: padding: 4px;
4207: }
4208: table.LC_descriptive_input td.LC_description {
4209: vertical-align: top;
4210: text-align: right;
4211: font-weight: bold;
4212: }
4213: table.LC_feedback_link {
4214: background: $feedback_link_bg;
4215: }
4216: span.LC_feedback_link {
4217: background: $feedback_link_bg;
4218: font-size: larger;
4219: }
4220:
4221: END
4222: }
4223:
4224: =pod
4225:
4226: =over 4
4227:
4228: =item * &headtag()
4229:
4230: Returns a uniform footer for LON-CAPA web pages.
4231:
4232: Inputs: $title - optional title for the head
4233: $head_extra - optional extra HTML to put inside the <head>
4234: $args - optional arguments
4235: force_register - if is true call registerurl so the remote is
4236: informed
4237: redirect -> array ref of
4238: 1- seconds before redirect occurs
4239: 2- url to redirect to
4240: 3- whether the side effect should occur
4241: (side effect of setting
4242: $env{'internal.head.redirect'} to the url
4243: redirected too)
4244: domain -> force to color decorate a page for a specific
4245: domain
4246: function -> force usage of a specific rolish color scheme
4247: bgcolor -> override the default page bgcolor
4248: no_auto_mt_title
4249: -> prevent &mt()ing the title arg
4250:
4251: =back
4252:
4253: =cut
4254:
4255: sub headtag {
4256: my ($title,$head_extra,$args) = @_;
4257:
4258: my $function = $args->{'function'} || &get_users_function();
4259: my $domain = $args->{'domain'} || &determinedomain();
4260: my $bgcolor = $args->{'bgcolor'} || &designparm($function.'.pgbg',$domain);
4261: my $url = join(':',$env{'user.name'},$env{'user.domain'},
4262: $Apache::lonnet::perlvar{'lonVersion'},
4263: #time(),
4264: $env{'environment.color.timestamp'},
4265: $function,$domain,$bgcolor);
4266:
4267: $url = '/adm/css/'.&escape($url).'.css';
4268:
4269: my $result =
4270: '<head>'.
4271: &font_settings();
4272:
4273: if (!$args->{'frameset'}) {
4274: $result .= &Apache::lonhtmlcommon::htmlareaheaders();
4275: }
4276: if ($args->{'force_register'}) {
4277: $result .= &Apache::lonmenu::registerurl(1);
4278: }
4279: if (!$args->{'no_nav_bar'}
4280: && !$args->{'only_body'}
4281: && !$args->{'frameset'}) {
4282: $result .= &help_menu_js();
4283: }
4284:
4285: if (ref($args->{'redirect'})) {
4286: my ($time,$url,$inhibit_continue) = @{$args->{'redirect'}};
4287: $url = &Apache::lonenc::check_encrypt($url);
4288: if (!$inhibit_continue) {
4289: $env{'internal.head.redirect'} = $url;
4290: }
4291: $result.=<<ADDMETA
4292: <meta http-equiv="pragma" content="no-cache" />
4293: <meta http-equiv="Refresh" content="$time; url=$url" />
4294: ADDMETA
4295: }
4296: if (!defined($title)) {
4297: $title = 'The LearningOnline Network with CAPA';
4298: }
4299: if (!$args->{'no_auto_mt_title'}) { $title = &mt($title); }
4300: $result .= '<title> LON-CAPA '.$title.'</title>'
4301: .'<link rel="stylesheet" type="text/css" href="'.$url.'" />'
4302: .$head_extra;
4303: return $result;
4304: }
4305:
4306: =pod
4307:
4308: =over 4
4309:
4310: =item * &font_settings()
4311:
4312: Returns neccessary <meta> to set the proper encoding
4313:
4314: Inputs: none
4315:
4316: =back
4317:
4318: =cut
4319:
4320: sub font_settings {
4321: my $headerstring='';
4322: if (($env{'browser.os'} eq 'mac') && (!$env{'browser.mathml'})) {
4323: $headerstring.=
4324: '<meta Content-Type="text/html; charset=x-mac-roman" />';
4325: } elsif (!$env{'browser.mathml'} && $env{'browser.unicode'}) {
4326: $headerstring.=
4327: '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
4328: }
4329: return $headerstring;
4330: }
4331:
4332: =pod
4333:
4334: =over 4
4335:
4336: =item * &xml_begin()
4337:
4338: Returns the needed doctype and <html>
4339:
4340: Inputs: none
4341:
4342: =back
4343:
4344: =cut
4345:
4346: sub xml_begin {
4347: my $output='';
4348:
4349: &Apache::lonhtmlcommon::init_htmlareafields();
4350:
4351: if ($env{'browser.mathml'}) {
4352: $output='<?xml version="1.0"?>'
4353: #.'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>'."\n"
4354: # .'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" '
4355:
4356: # .'<!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">] >'
4357: .'<!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">'
4358: .'<html xmlns:math="http://www.w3.org/1998/Math/MathML" '
4359: .'xmlns="http://www.w3.org/1999/xhtml">';
4360: } else {
4361: $output='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html>';
4362: }
4363: return $output;
4364: }
4365:
4366: =pod
4367:
4368: =over 4
4369:
4370: =item * &endheadtag()
4371:
4372: Returns a uniform </head> for LON-CAPA web pages.
4373:
4374: Inputs: none
4375:
4376: =back
4377:
4378: =cut
4379:
4380: sub endheadtag {
4381: return '</head>';
4382: }
4383:
4384: =pod
4385:
4386: =over 4
4387:
4388: =item * &head()
4389:
4390: Returns a uniform complete <head>..</head> section for LON-CAPA web pages.
4391:
4392: Inputs: $title - optional title for the page
4393: $head_extra - optional extra HTML to put inside the <head>
4394:
4395: =back
4396:
4397: =cut
4398:
4399: sub head {
4400: my ($title,$head_extra,$args) = @_;
4401: return &headtag($title,$head_extra,$args).&endheadtag();
4402: }
4403:
4404: =pod
4405:
4406: =over 4
4407:
4408: =item * &start_page()
4409:
4410: Returns a complete <html> .. <body> section for LON-CAPA web pages.
4411:
4412: Inputs: $title - optional title for the page
4413: $head_extra - optional extra HTML to incude inside the <head>
4414: $args - additional optional args supported are:
4415: only_body -> is true will set &bodytag() onlybodytag
4416: arg on
4417: no_nav_bar -> is true will set &bodytag() notopbar arg on
4418: add_entries -> additional attributes to add to the <body>
4419: domain -> force to color decorate a page for a
4420: specific domain
4421: function -> force usage of a specific rolish color
4422: scheme
4423: redirect -> see &headtag()
4424: bgcolor -> override the default page bg color
4425: js_ready -> return a string ready for being used in
4426: a javascript writeln
4427: html_encode -> return a string ready for being used in
4428: a html attribute
4429: force_register -> if is true will turn on the &bodytag()
4430: $forcereg arg
4431: body_title -> alternate text to use instead of $title
4432: in the title box that appears, this text
4433: is not auto translated like the $title is
4434: frameset -> if true will start with a <frameset>
4435: rather than <body>
4436: no_title -> if true the title bar won't be shown
4437: skip_phases -> hash ref of
4438: head -> skip the <html><head> generation
4439: body -> skip all <body> generation
4440:
4441: no_inline_link -> if true and in remote mode, don't show the
4442: 'Switch To Inline Menu' link
4443:
4444: no_auto_mt_title -> prevent &mt()ing the title arg
4445:
4446: =back
4447:
4448: =cut
4449:
4450: sub start_page {
4451: my ($title,$head_extra,$args) = @_;
4452: #&Apache::lonnet::logthis("start_page ".join(':',caller(0)));
4453: my %head_args;
4454: foreach my $arg ('redirect','force_register','domain','function',
4455: 'bgcolor','frameset','no_nav_bar','only_body',
4456: 'no_auto_mt_title') {
4457: if (defined($args->{$arg})) {
4458: $head_args{$arg} = $args->{$arg};
4459: }
4460: }
4461:
4462: $env{'internal.start_page'}++;
4463: my $result;
4464: if (! exists($args->{'skip_phases'}{'head'}) ) {
4465: $result.=
4466: &xml_begin().
4467: &headtag($title,$head_extra,\%head_args).&endheadtag();
4468: }
4469:
4470: if (! exists($args->{'skip_phases'}{'body'}) ) {
4471: if ($args->{'frameset'}) {
4472: my $attr_string = &make_attr_string($args->{'force_register'},
4473: $args->{'add_entries'});
4474: $result .= "\n<frameset $attr_string>\n";
4475: } else {
4476: $result .=
4477: &bodytag($title,
4478: $args->{'function'}, $args->{'add_entries'},
4479: $args->{'only_body'}, $args->{'domain'},
4480: $args->{'force_register'}, $args->{'body_title'},
4481: $args->{'no_nav_bar'}, $args->{'bgcolor'},
4482: $args->{'no_title'}, $args->{'no_inline_link'},
4483: $args);
4484: }
4485: }
4486:
4487: if ($args->{'js_ready'}) {
4488: $result = &js_ready($result);
4489: }
4490: if ($args->{'html_encode'}) {
4491: $result = &html_encode($result);
4492: }
4493: return $result;
4494: }
4495:
4496:
4497: =pod
4498:
4499: =over 4
4500:
4501: =item * &head()
4502:
4503: Returns a complete </body></html> section for LON-CAPA web pages.
4504:
4505: Inputs: $args - additional optional args supported are:
4506: js_ready -> return a string ready for being used in
4507: a javascript writeln
4508: html_encode -> return a string ready for being used in
4509: a html attribute
4510: frameset -> if true will start with a <frameset>
4511: rather than <body>
4512: dicsussion -> if true will get discussion from
4513: lonxml::xmlend
4514: (you can pass the target and parser arguments
4515: through optional 'target' and 'parser' args
4516: to this routine)
4517:
4518: =cut
4519:
4520: sub end_page {
4521: my ($args) = @_;
4522: $env{'internal.end_page'}++;
4523: my $result;
4524: if ($args->{'discussion'}) {
4525: my ($target,$parser);
4526: if (ref($args->{'discussion'})) {
4527: ($target,$parser) =($args->{'discussion'}{'target'},
4528: $args->{'discussion'}{'parser'});
4529: }
4530: $result .= &Apache::lonxml::xmlend($target,$parser);
4531: }
4532:
4533: if ($args->{'frameset'}) {
4534: $result .= '</frameset>';
4535: } else {
4536: $result .= &endbodytag();
4537: }
4538: $result .= "\n</html>";
4539:
4540: if ($args->{'js_ready'}) {
4541: $result = &js_ready($result);
4542: }
4543:
4544: if ($args->{'html_encode'}) {
4545: $result = &html_encode($result);
4546: }
4547:
4548: return $result;
4549: }
4550:
4551: sub html_encode {
4552: my ($result) = @_;
4553:
4554: $result = &HTML::Entities::encode($result,'<>&"');
4555:
4556: return $result;
4557: }
4558: sub js_ready {
4559: my ($result) = @_;
4560:
4561: $result =~ s/[\n\r]/ /xmsg;
4562: $result =~ s/\\/\\\\/xmsg;
4563: $result =~ s/'/\\'/xmsg;
4564: $result =~ s{</}{<\\/}xmsg;
4565:
4566: return $result;
4567: }
4568:
4569: sub validate_page {
4570: if ( exists($env{'internal.start_page'})
4571: && $env{'internal.start_page'} > 1) {
4572: &Apache::lonnet::logthis('start_page called multiple times '.
4573: $env{'internal.start_page'}.' '.
4574: $ENV{'request.filename'});
4575: }
4576: if ( exists($env{'internal.end_page'})
4577: && $env{'internal.end_page'} > 1) {
4578: &Apache::lonnet::logthis('end_page called multiple times '.
4579: $env{'internal.end_page'}.' '.
4580: $env{'request.filename'});
4581: }
4582: if ( exists($env{'internal.start_page'})
4583: && ! exists($env{'internal.end_page'})) {
4584: &Apache::lonnet::logthis('start_page called without end_page '.
4585: $env{'request.filename'});
4586: }
4587: if ( ! exists($env{'internal.start_page'})
4588: && exists($env{'internal.end_page'})) {
4589: &Apache::lonnet::logthis('end_page called without start_page'.
4590: $env{'request.filename'});
4591: }
4592: }
4593:
4594: sub simple_error_page {
4595: my ($r,$title,$msg) = @_;
4596: my $page =
4597: &Apache::loncommon::start_page($title).
4598: &mt($msg).
4599: &Apache::loncommon::end_page();
4600: if (ref($r)) {
4601: $r->print($page);
4602: return;
4603: }
4604: return $page;
4605: }
4606:
4607: {
4608: my $row_count;
4609: sub start_data_table {
4610: my ($add_class) = @_;
4611: my $css_class = (join(' ','LC_data_table',$add_class));
4612: undef($row_count);
4613: return '<table class="'.$css_class.'">'."\n";
4614: }
4615:
4616: sub end_data_table {
4617: undef($row_count);
4618: return '</table>'."\n";;
4619: }
4620:
4621: sub start_data_table_row {
4622: my ($add_class) = @_;
4623: $row_count++;
4624: my $css_class = ($row_count % 2)?'':'LC_even_row';
4625: $css_class = (join(' ',$css_class,$add_class));
4626: return '<tr class="'.$css_class.'">'."\n";;
4627: }
4628:
4629: sub continue_data_table_row {
4630: my ($add_class) = @_;
4631: my $css_class = ($row_count % 2)?'':'LC_even_row';
4632: $css_class = (join(' ',$css_class,$add_class));
4633: return '<tr class="'.$css_class.'">'."\n";;
4634: }
4635:
4636: sub end_data_table_row {
4637: return '</tr>'."\n";;
4638: }
4639:
4640: sub start_data_table_empty_row {
4641: $row_count++;
4642: return '<tr class="LC_empty_row" >'."\n";;
4643: }
4644:
4645: sub end_data_table_empty_row {
4646: return '</tr>'."\n";;
4647: }
4648:
4649: sub start_data_table_header_row {
4650: return '<tr class="LC_header_row">'."\n";;
4651: }
4652:
4653: sub end_data_table_header_row {
4654: return '</tr>'."\n";;
4655: }
4656: }
4657:
4658: ###############################################
4659:
4660: =pod
4661:
4662: =item * &get_users_function()
4663:
4664: Used by &bodytag to determine the current users primary role.
4665: Returns either 'student','coordinator','admin', or 'author'.
4666:
4667: =cut
4668:
4669: ###############################################
4670: sub get_users_function {
4671: my $function = 'student';
4672: if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
4673: $function='coordinator';
4674: }
4675: if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
4676: $function='admin';
4677: }
4678: if (($env{'request.role'}=~/^(au|ca)/) ||
4679: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
4680: $function='author';
4681: }
4682: return $function;
4683: }
4684:
4685: ###############################################
4686:
4687: =pod
4688:
4689: =item * &check_user_status
4690:
4691: Determines current status of supplied role for a
4692: specific user. Roles can be active, previous or future.
4693:
4694: Inputs:
4695: user's domain, user's username, course's domain,
4696: course's number, optional section ID.
4697:
4698: Outputs:
4699: role status: active, previous or future.
4700:
4701: =cut
4702:
4703: sub check_user_status {
4704: my ($udom,$uname,$cdom,$crs,$role,$sec) = @_;
4705: my %userinfo = &Apache::lonnet::dump('roles',$udom,$uname);
4706: my @uroles = keys %userinfo;
4707: my $srchstr;
4708: my $active_chk = 'none';
4709: my $now = time;
4710: if (@uroles > 0) {
4711: if (($role eq 'cc') || ($sec eq '') || (!defined($sec))) {
4712: $srchstr = '/'.$cdom.'/'.$crs.'_'.$role;
4713: } else {
4714: $srchstr = '/'.$cdom.'/'.$crs.'/'.$sec.'_'.$role;
4715: }
4716: if (grep/^\Q$srchstr\E$/,@uroles) {
4717: my $role_end = 0;
4718: my $role_start = 0;
4719: $active_chk = 'active';
4720: if ($userinfo{$srchstr} =~ m/^\Q$role\E_(\d+)/) {
4721: $role_end = $1;
4722: if ($userinfo{$srchstr} =~ m/^\Q$role\E_\Q$role_end\E_(\d+)$/) {
4723: $role_start = $1;
4724: }
4725: }
4726: if ($role_start > 0) {
4727: if ($now < $role_start) {
4728: $active_chk = 'future';
4729: }
4730: }
4731: if ($role_end > 0) {
4732: if ($now > $role_end) {
4733: $active_chk = 'previous';
4734: }
4735: }
4736: }
4737: }
4738: return $active_chk;
4739: }
4740:
4741: ###############################################
4742:
4743: =pod
4744:
4745: =item * &get_sections()
4746:
4747: Determines all the sections for a course including
4748: sections with students and sections containing other roles.
4749: Incoming parameters:
4750:
4751: 1. domain
4752: 2. course number
4753: 3. reference to array containing roles for which sections should
4754: be gathered (optional).
4755: 4. reference to array containing status types for which sections
4756: should be gathered (optional).
4757:
4758: If the third argument is undefined, sections are gathered for any role.
4759: If the fourth argument is undefined, sections are gathered for any status.
4760: Permissible values are 'active' or 'future' or 'previous'.
4761:
4762: Returns section hash (keys are section IDs, values are
4763: number of users in each section), subject to the
4764: optional roles filter, optional status filter
4765:
4766: =cut
4767:
4768: ###############################################
4769: sub get_sections {
4770: my ($cdom,$cnum,$possible_roles,$possible_status) = @_;
4771: if (!defined($cdom) || !defined($cnum)) {
4772: my $cid = $env{'request.course.id'};
4773:
4774: return if (!defined($cid));
4775:
4776: $cdom = $env{'course.'.$cid.'.domain'};
4777: $cnum = $env{'course.'.$cid.'.num'};
4778: }
4779:
4780: my %sectioncount;
4781: my $now = time;
4782:
4783: if (!defined($possible_roles) || (grep(/^st$/,@$possible_roles))) {
4784: my ($classlist) = &Apache::loncoursedata::get_classlist($cdom,$cnum);
4785: my $sec_index = &Apache::loncoursedata::CL_SECTION();
4786: my $status_index = &Apache::loncoursedata::CL_STATUS();
4787: my $start_index = &Apache::loncoursedata::CL_START();
4788: my $end_index = &Apache::loncoursedata::CL_END();
4789: my $status;
4790: while (my ($student,$data) = each(%$classlist)) {
4791: my ($section,$stu_status,$start,$end) = ($data->[$sec_index],
4792: $data->[$status_index],
4793: $data->[$start_index],
4794: $data->[$end_index]);
4795: if ($stu_status eq 'Active') {
4796: $status = 'active';
4797: } elsif ($end < $now) {
4798: $status = 'previous';
4799: } elsif ($start > $now) {
4800: $status = 'future';
4801: }
4802: if ($section ne '-1' && $section !~ /^\s*$/) {
4803: if ((!defined($possible_status)) || (($status ne '') &&
4804: (grep/^\Q$status\E$/,@{$possible_status}))) {
4805: $sectioncount{$section}++;
4806: }
4807: }
4808: }
4809: }
4810: my %courseroles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
4811: foreach my $user (sort(keys(%courseroles))) {
4812: if ($user !~ /^(\w{2})/) { next; }
4813: my ($role) = ($user =~ /^(\w{2})/);
4814: if ($possible_roles && !(grep(/^$role$/,@$possible_roles))) { next; }
4815: my ($section,$status);
4816: if ($role eq 'cr' &&
4817: $user =~ m-^$role/[^/]*/[^/]*/[^/]*:[^:]*:[^:]*:(\w+)-) {
4818: $section=$1;
4819: }
4820: if ($user =~ /^$role:[^:]*:[^:]*:(\w+)/) { $section=$1; }
4821: if (!defined($section) || $section eq '-1') { next; }
4822: my ($end,$start) = ($courseroles{$user} =~ /^([^:]*):([^:]*)$/);
4823: if ($end == -1 && $start == -1) {
4824: next; #deleted role
4825: }
4826: if (!defined($possible_status)) {
4827: $sectioncount{$section}++;
4828: } else {
4829: if ((!$end || $end >= $now) && (!$start || $start <= $now)) {
4830: $status = 'active';
4831: } elsif ($end < $now) {
4832: $status = 'future';
4833: } elsif ($start > $now) {
4834: $status = 'previous';
4835: }
4836: if (($status ne '') && (grep/^\Q$status\E$/,@{$possible_status})) {
4837: $sectioncount{$section}++;
4838: }
4839: }
4840: }
4841: return %sectioncount;
4842: }
4843:
4844: ###############################################
4845:
4846: =pod
4847:
4848: =item * &get_course_users()
4849:
4850: Retrieves usernames:domains for users in the specified course
4851: with specific role(s), and access status.
4852:
4853: Incoming parameters:
4854: 1. course domain
4855: 2. course number
4856: 3. access status: users must have - either active,
4857: previous, future, or all.
4858: 4. reference to array of permissible roles
4859: 5. reference to array of section restrictions (optional)
4860: 6. reference to results object (hash of hashes).
4861: 7. reference to optional userdata hash
4862: Keys of top level hash are roles.
4863: Keys of inner hashes are username:domain, with
4864: values set to access type.
4865: Optional userdata hash returns an array with arguments in the
4866: same order as loncoursedata::get_classlist() for student data.
4867:
4868: Entries for end, start, section and status are blank because
4869: of the possibility of multiple values for non-student roles.
4870:
4871: =cut
4872:
4873: ###############################################
4874:
4875: sub get_course_users {
4876: my ($cdom,$cnum,$types,$roles,$sections,$users,$userdata) = @_;
4877: my %idx = ();
4878: my %seclists;
4879:
4880: $idx{udom} = &Apache::loncoursedata::CL_SDOM();
4881: $idx{uname} = &Apache::loncoursedata::CL_SNAME();
4882: $idx{end} = &Apache::loncoursedata::CL_END();
4883: $idx{start} = &Apache::loncoursedata::CL_START();
4884: $idx{id} = &Apache::loncoursedata::CL_ID();
4885: $idx{section} = &Apache::loncoursedata::CL_SECTION();
4886: $idx{fullname} = &Apache::loncoursedata::CL_FULLNAME();
4887: $idx{status} = &Apache::loncoursedata::CL_STATUS();
4888:
4889: if (grep(/^st$/,@{$roles})) {
4890: my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist($cdom,$cnum);
4891: my $now = time;
4892: foreach my $student (keys(%{$classlist})) {
4893: my $match = 0;
4894: my $secmatch = 0;
4895: my $section = $$classlist{$student}[$idx{section}];
4896: if ($section eq '') {
4897: $section = 'none';
4898: }
4899: if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
4900: if (grep(/^all$/,@{$sections})) {
4901: $secmatch = 1;
4902: } elsif ($$classlist{$student}[$idx{section}] eq '') {
4903: if (grep(/^none$/,@{$sections})) {
4904: $secmatch = 1;
4905: }
4906: } else {
4907: if (grep(/^\Q$section\E$/,@{$sections})) {
4908: $secmatch = 1;
4909: }
4910: }
4911: if (!$secmatch) {
4912: next;
4913: }
4914: }
4915: push(@{$seclists{$student}},$section);
4916: if (defined($$types{'active'})) {
4917: if ($$classlist{$student}[$idx{status}] eq 'Active') {
4918: push(@{$$users{st}{$student}},'active');
4919: $match = 1;
4920: }
4921: }
4922: if (defined($$types{'previous'})) {
4923: if ($$classlist{$student}[$idx{end}] <= $now) {
4924: push(@{$$users{st}{$student}},'previous');
4925: $match = 1;
4926: }
4927: }
4928: if (defined($$types{'future'})) {
4929: if (($$classlist{$student}[$idx{start}] > $now) && ($$classlist{$student}[$idx{end}] > $now) || ($$classlist{$student}[$idx{end}] == 0) || ($$classlist{$student}[$idx{end}] eq '')) {
4930: push(@{$$users{st}{$student}},'future');
4931: $match = 1;
4932: }
4933: }
4934: if ($match && ref($userdata) eq 'HASH') {
4935: $$userdata{$student} = $$classlist{$student};
4936: }
4937: }
4938: }
4939: if ((@{$roles} > 1) || ((@{$roles} == 1) && ($$roles[0] ne "st"))) {
4940: my %coursepersonnel = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
4941: my $now = time;
4942: foreach my $person (sort(keys(%coursepersonnel))) {
4943: my $match = 0;
4944: my $secmatch = 0;
4945: my $status;
4946: my ($role,$user,$usec) = ($person =~ /^([^:]*):([^:]+:[^:]+):([^:]*)/);
4947: $user =~ s/:$//;
4948: my ($end,$start) = split(/:/,$coursepersonnel{$person});
4949: if ($end == -1 || $start == -1) {
4950: next;
4951: }
4952: if (($role) && ((grep(/^\Q$role\E$/,@{$roles})) ||
4953: (grep(/^cr$/,@{$roles}) && $role =~ /^cr\//))) {
4954: my ($uname,$udom) = split(/:/,$user);
4955: if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
4956: if (grep(/^all$/,@{$sections})) {
4957: $secmatch = 1;
4958: } elsif ($usec eq '') {
4959: if (grep(/^none$/,@{$sections})) {
4960: $secmatch = 1;
4961: }
4962: } else {
4963: if (grep(/^\Q$usec\E$/,@{$sections})) {
4964: $secmatch = 1;
4965: }
4966: }
4967: if (!$secmatch) {
4968: next;
4969: }
4970: }
4971: if ($usec eq '') {
4972: $usec = 'none';
4973: }
4974: if ($uname ne '' && $udom ne '') {
4975: if ($end > 0 && $end < $now) {
4976: $status = 'previous';
4977: } elsif ($start > $now) {
4978: $status = 'future';
4979: } else {
4980: $status = 'active';
4981: }
4982: foreach my $type (keys(%{$types})) {
4983: if ($status eq $type) {
4984: if (!grep(/^\Q$type\E$/,@{$$users{$role}{$user}})) {
4985: push(@{$$users{$role}{$user}},$type);
4986: }
4987: $match = 1;
4988: }
4989: }
4990: if (($match) && (ref($userdata) eq 'HASH')) {
4991: if (!exists($$userdata{$uname.':'.$udom})) {
4992: &get_user_info($udom,$uname,\%idx,$userdata);
4993: }
4994: if (!grep(/^\Q$usec\E$/,@{$seclists{$uname.':'.$udom}})) {
4995: push(@{$seclists{$uname.':'.$udom}},$usec);
4996: }
4997: }
4998: }
4999: }
5000: }
5001: if (grep(/^ow$/,@{$roles})) {
5002: if ((defined($cdom)) && (defined($cnum))) {
5003: my %csettings = &Apache::lonnet::get('environment',['internal.courseowner'],$cdom,$cnum);
5004: if ( defined($csettings{'internal.courseowner'}) ) {
5005: my $owner = $csettings{'internal.courseowner'};
5006: if ($owner !~ /^[^:]+:[^:]+$/) {
5007: $owner = $owner.':'.$cdom;
5008: }
5009: @{$$users{'ow'}{$owner}} = 'any';
5010: if (defined($userdata) &&
5011: !exists($$userdata{$owner.':'.$cdom})) {
5012: &get_user_info($cdom,$owner,\%idx,$userdata);
5013: if (!grep(/^none$/,@{$seclists{$owner.':'.$cdom}})) {
5014: push(@{$seclists{$owner.':'.$cdom}},'none');
5015: }
5016: }
5017: }
5018: }
5019: }
5020: foreach my $user (keys(%seclists)) {
5021: @{$seclists{$user}} = (sort {$a <=> $b} @{$seclists{$user}});
5022: $$userdata{$user}[$idx{section}] = join(',',@{$seclists{$user}});
5023: }
5024: }
5025: return;
5026: }
5027:
5028: sub get_user_info {
5029: my ($udom,$uname,$idx,$userdata) = @_;
5030: $$userdata{$uname.':'.$udom}[$$idx{fullname}] =
5031: &plainname($uname,$udom,'lastname');
5032: $$userdata{$uname.':'.$udom}[$$idx{uname}] = $uname;
5033: $$userdata{$uname.':'.$udom}[$$idx{udom}] = $udom;
5034: return;
5035: }
5036:
5037: ###############################################
5038:
5039: =pod
5040:
5041: =item * &get_user_quota()
5042:
5043: Retrieves quota assigned for storage of portfolio files for a user
5044:
5045: Incoming parameters:
5046: 1. user's username
5047: 2. user's domain
5048:
5049: Returns:
5050: 1. Disk quota (in Mb) assigned to student.
5051:
5052: If a value has been stored in the user's environment,
5053: it will return that, otherwise it returns the default
5054: for users in the domain.
5055:
5056: =cut
5057:
5058: ###############################################
5059:
5060:
5061: sub get_user_quota {
5062: my ($uname,$udom) = @_;
5063: my $quota;
5064: if (!defined($udom)) {
5065: $udom = $env{'user.domain'};
5066: }
5067: if (!defined($uname)) {
5068: $uname = $env{'user.name'};
5069: }
5070: if (($udom eq '' || $uname eq '') ||
5071: ($udom eq 'public') && ($uname eq 'public')) {
5072: $quota = 0;
5073: } else {
5074: if ($udom eq $env{'user.domain'} && $uname eq $env{'user.name'}) {
5075: $quota = $env{'environment.portfolioquota'};
5076: } else {
5077: my %userenv = &Apache::lonnet::dump('environment',$udom,$uname);
5078: my ($tmp) = keys(%userenv);
5079: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
5080: $quota = $userenv{'portfolioquota'};
5081: } else {
5082: undef(%userenv);
5083: }
5084: }
5085: if ($quota eq '') {
5086: $quota = &default_quota($udom);
5087: }
5088: }
5089: return $quota;
5090: }
5091:
5092: ###############################################
5093:
5094: =pod
5095:
5096: =item * &default_quota()
5097:
5098: Retrieves default quota assigned for storage of user portfolio files
5099:
5100: Incoming parameters:
5101: 1. domain
5102:
5103: Returns:
5104: 1. Default disk quota (in Mb) for user portfolios in the domain.
5105:
5106: If a value has been stored in the domain's configuration db,
5107: it will return that, otherwise it returns 20 (for backwards
5108: compatibility with domains which have not set up a configuration
5109: db file; the original statically defined portfolio quota was 20 Mb).
5110:
5111: =cut
5112:
5113: ###############################################
5114:
5115:
5116: sub default_quota {
5117: my ($udom) = @_;
5118: my %defaults = &Apache::lonnet::get_dom('configuration',
5119: ['portfolioquota'],$udom);
5120: if ($defaults{'portfolioquota'} ne '') {
5121: return $defaults{'portfolioquota'};
5122: } else {
5123: return '20';
5124: }
5125: }
5126:
5127: sub get_secgrprole_info {
5128: my ($cdom,$cnum,$needroles,$type) = @_;
5129: my %sections_count = &get_sections($cdom,$cnum);
5130: my @sections = (sort {$a <=> $b} keys(%sections_count));
5131: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
5132: my @groups = sort(keys(%curr_groups));
5133: my $allroles = [];
5134: my $rolehash;
5135: my $accesshash = {
5136: active => 'Currently has access',
5137: future => 'Will have future access',
5138: previous => 'Previously had access',
5139: };
5140: if ($needroles) {
5141: $rolehash = {'all' => 'all'};
5142: my %user_roles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
5143: if (&Apache::lonnet::error(%user_roles)) {
5144: undef(%user_roles);
5145: }
5146: foreach my $item (keys(%user_roles)) {
5147: my ($role)=split(/\:/,$item,2);
5148: if ($role eq 'cr') { next; }
5149: if ($role =~ /^cr/) {
5150: $$rolehash{$role} = (split('/',$role))[3];
5151: } else {
5152: $$rolehash{$role} = &Apache::lonnet::plaintext($role,$type);
5153: }
5154: }
5155: foreach my $key (sort(keys(%{$rolehash}))) {
5156: push(@{$allroles},$key);
5157: }
5158: push (@{$allroles},'st');
5159: $$rolehash{'st'} = &Apache::lonnet::plaintext('st',$type);
5160: }
5161: return (\@sections,\@groups,$allroles,$rolehash,$accesshash);
5162: }
5163:
5164: =pod
5165:
5166: =item * get_unprocessed_cgi($query,$possible_names)
5167:
5168: Modify the %env hash to contain unprocessed CGI form parameters held in
5169: $query. The parameters listed in $possible_names (an array reference),
5170: will be set in $env{'form.name'} if they do not already exist.
5171:
5172: Typically called with $ENV{'QUERY_STRING'} as the first parameter.
5173: $possible_names is an ref to an array of form element names. As an example:
5174: get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);
5175: will result in $env{'form.uname'} and $env{'form.udom'} being set.
5176:
5177: =cut
5178:
5179: sub get_unprocessed_cgi {
5180: my ($query,$possible_names)= @_;
5181: # $Apache::lonxml::debug=1;
5182: foreach my $pair (split(/&/,$query)) {
5183: my ($name, $value) = split(/=/,$pair);
5184: $name = &unescape($name);
5185: if (!defined($possible_names) || (grep {$_ eq $name} @$possible_names)) {
5186: $value =~ tr/+/ /;
5187: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
5188: unless (defined($env{'form.'.$name})) { &add_to_env('form.'.$name,$value) };
5189: }
5190: }
5191: }
5192:
5193: =pod
5194:
5195: =item * cacheheader()
5196:
5197: returns cache-controlling header code
5198:
5199: =cut
5200:
5201: sub cacheheader {
5202: unless ($env{'request.method'} eq 'GET') { return ''; }
5203: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
5204: my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
5205: <meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />
5206: <meta HTTP-EQUIV="Pragma" CONTENT="no-cache" />';
5207: return $output;
5208: }
5209:
5210: =pod
5211:
5212: =item * no_cache($r)
5213:
5214: specifies header code to not have cache
5215:
5216: =cut
5217:
5218: sub no_cache {
5219: my ($r) = @_;
5220: if ($ENV{'REQUEST_METHOD'} ne 'GET' &&
5221: $env{'request.method'} ne 'GET') { return ''; }
5222: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime(time));
5223: $r->no_cache(1);
5224: $r->header_out("Expires" => $date);
5225: $r->header_out("Pragma" => "no-cache");
5226: }
5227:
5228: sub content_type {
5229: my ($r,$type,$charset) = @_;
5230: if ($r) {
5231: # Note that printout.pl calls this with undef for $r.
5232: &no_cache($r);
5233: }
5234: if ($env{'browser.mathml'} && $type eq 'text/html') { $type='text/xml'; }
5235: unless ($charset) {
5236: $charset=&Apache::lonlocal::current_encoding;
5237: }
5238: if ($charset) { $type.='; charset='.$charset; }
5239: if ($r) {
5240: $r->content_type($type);
5241: } else {
5242: print("Content-type: $type\n\n");
5243: }
5244: }
5245:
5246: =pod
5247:
5248: =item * add_to_env($name,$value)
5249:
5250: adds $name to the %env hash with value
5251: $value, if $name already exists, the entry is converted to an array
5252: reference and $value is added to the array.
5253:
5254: =cut
5255:
5256: sub add_to_env {
5257: my ($name,$value)=@_;
5258: if (defined($env{$name})) {
5259: if (ref($env{$name})) {
5260: #already have multiple values
5261: push(@{ $env{$name} },$value);
5262: } else {
5263: #first time seeing multiple values, convert hash entry to an arrayref
5264: my $first=$env{$name};
5265: undef($env{$name});
5266: push(@{ $env{$name} },$first,$value);
5267: }
5268: } else {
5269: $env{$name}=$value;
5270: }
5271: }
5272:
5273: =pod
5274:
5275: =item * get_env_multiple($name)
5276:
5277: gets $name from the %env hash, it seemlessly handles the cases where multiple
5278: values may be defined and end up as an array ref.
5279:
5280: returns an array of values
5281:
5282: =cut
5283:
5284: sub get_env_multiple {
5285: my ($name) = @_;
5286: my @values;
5287: if (defined($env{$name})) {
5288: # exists is it an array
5289: if (ref($env{$name})) {
5290: @values=@{ $env{$name} };
5291: } else {
5292: $values[0]=$env{$name};
5293: }
5294: }
5295: return(@values);
5296: }
5297:
5298:
5299: =pod
5300:
5301: =back
5302:
5303: =head1 CSV Upload/Handling functions
5304:
5305: =over 4
5306:
5307: =item * upfile_store($r)
5308:
5309: Store uploaded file, $r should be the HTTP Request object,
5310: needs $env{'form.upfile'}
5311: returns $datatoken to be put into hidden field
5312:
5313: =cut
5314:
5315: sub upfile_store {
5316: my $r=shift;
5317: $env{'form.upfile'}=~s/\r/\n/gs;
5318: $env{'form.upfile'}=~s/\f/\n/gs;
5319: $env{'form.upfile'}=~s/\n+/\n/gs;
5320: $env{'form.upfile'}=~s/\n+$//gs;
5321:
5322: my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
5323: '_enroll_'.$env{'request.course.id'}.'_'.time.'_'.$$;
5324: {
5325: my $datafile = $r->dir_config('lonDaemons').
5326: '/tmp/'.$datatoken.'.tmp';
5327: if ( open(my $fh,">$datafile") ) {
5328: print $fh $env{'form.upfile'};
5329: close($fh);
5330: }
5331: }
5332: return $datatoken;
5333: }
5334:
5335: =pod
5336:
5337: =item * load_tmp_file($r)
5338:
5339: Load uploaded file from tmp, $r should be the HTTP Request object,
5340: needs $env{'form.datatoken'},
5341: sets $env{'form.upfile'} to the contents of the file
5342:
5343: =cut
5344:
5345: sub load_tmp_file {
5346: my $r=shift;
5347: my @studentdata=();
5348: {
5349: my $studentfile = $r->dir_config('lonDaemons').
5350: '/tmp/'.$env{'form.datatoken'}.'.tmp';
5351: if ( open(my $fh,"<$studentfile") ) {
5352: @studentdata=<$fh>;
5353: close($fh);
5354: }
5355: }
5356: $env{'form.upfile'}=join('',@studentdata);
5357: }
5358:
5359: =pod
5360:
5361: =item * upfile_record_sep()
5362:
5363: Separate uploaded file into records
5364: returns array of records,
5365: needs $env{'form.upfile'} and $env{'form.upfiletype'}
5366:
5367: =cut
5368:
5369: sub upfile_record_sep {
5370: if ($env{'form.upfiletype'} eq 'xml') {
5371: } else {
5372: my @records;
5373: foreach my $line (split(/\n/,$env{'form.upfile'})) {
5374: if ($line=~/^\s*$/) { next; }
5375: push(@records,$line);
5376: }
5377: return @records;
5378: }
5379: }
5380:
5381: =pod
5382:
5383: =item * record_sep($record)
5384:
5385: Separate a record into fields $record should be an item from the upfile_record_sep(), needs $env{'form.upfiletype'}
5386:
5387: =cut
5388:
5389: sub takeleft {
5390: my $index=shift;
5391: return substr('0000'.$index,-4,4);
5392: }
5393:
5394: sub record_sep {
5395: my $record=shift;
5396: my %components=();
5397: if ($env{'form.upfiletype'} eq 'xml') {
5398: } elsif ($env{'form.upfiletype'} eq 'space') {
5399: my $i=0;
5400: foreach my $field (split(/\s+/,$record)) {
5401: $field=~s/^(\"|\')//;
5402: $field=~s/(\"|\')$//;
5403: $components{&takeleft($i)}=$field;
5404: $i++;
5405: }
5406: } elsif ($env{'form.upfiletype'} eq 'tab') {
5407: my $i=0;
5408: foreach my $field (split(/\t/,$record)) {
5409: $field=~s/^(\"|\')//;
5410: $field=~s/(\"|\')$//;
5411: $components{&takeleft($i)}=$field;
5412: $i++;
5413: }
5414: } else {
5415: my @allfields;
5416: if ($env{'form.upfiletype'} eq 'semisv') {
5417: @allfields=split(/;/,$record,-1);
5418: } else {
5419: @allfields=split(/\,/,$record,-1);
5420: }
5421: my $i=0;
5422: my $j;
5423: for ($j=0;$j<=$#allfields;$j++) {
5424: my $field=$allfields[$j];
5425: if ($field=~/^\s*(\"|\')/) {
5426: my $delimiter=$1;
5427: while (($field!~/$delimiter$/) && ($j<$#allfields)) {
5428: $j++;
5429: $field.=','.$allfields[$j];
5430: }
5431: $field=~s/^\s*$delimiter//;
5432: $field=~s/$delimiter\s*$//;
5433: }
5434: $components{&takeleft($i)}=$field;
5435: $i++;
5436: }
5437: }
5438: return %components;
5439: }
5440:
5441: ######################################################
5442: ######################################################
5443:
5444: =pod
5445:
5446: =item * upfile_select_html()
5447:
5448: Return HTML code to select a file from the users machine and specify
5449: the file type.
5450:
5451: =cut
5452:
5453: ######################################################
5454: ######################################################
5455: sub upfile_select_html {
5456: my %Types = (
5457: csv => &mt('CSV (comma separated values, spreadsheet)'),
5458: semisv => &mt('Semicolon separated values'),
5459: space => &mt('Space separated'),
5460: tab => &mt('Tabulator separated'),
5461: # xml => &mt('HTML/XML'),
5462: );
5463: my $Str = '<input type="file" name="upfile" size="50" />'.
5464: '<br />Type: <select name="upfiletype">';
5465: foreach my $type (sort(keys(%Types))) {
5466: $Str .= '<option value="'.$type.'" >'.$Types{$type}."</option>\n";
5467: }
5468: $Str .= "</select>\n";
5469: return $Str;
5470: }
5471:
5472: sub get_samples {
5473: my ($records,$toget) = @_;
5474: my @samples=({});
5475: my $got=0;
5476: foreach my $rec (@$records) {
5477: my %temp = &record_sep($rec);
5478: if (! grep(/\S/, values(%temp))) { next; }
5479: if (%temp) {
5480: $samples[$got]=\%temp;
5481: $got++;
5482: if ($got == $toget) { last; }
5483: }
5484: }
5485: return \@samples;
5486: }
5487:
5488: ######################################################
5489: ######################################################
5490:
5491: =pod
5492:
5493: =item * csv_print_samples($r,$records)
5494:
5495: Prints a table of sample values from each column uploaded $r is an
5496: Apache Request ref, $records is an arrayref from
5497: &Apache::loncommon::upfile_record_sep
5498:
5499: =cut
5500:
5501: ######################################################
5502: ######################################################
5503: sub csv_print_samples {
5504: my ($r,$records) = @_;
5505: my $samples = &get_samples($records,3);
5506:
5507: $r->print(&mt('Samples').'<br /><table border="2"><tr>');
5508: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
5509: $r->print('<th>'.&mt('Column [_1]',($sample+1)).'</th>'); }
5510: $r->print('</tr>');
5511: foreach my $hash (@$samples) {
5512: $r->print('<tr>');
5513: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
5514: $r->print('<td>');
5515: if (defined($$hash{$sample})) { $r->print($$hash{$sample}); }
5516: $r->print('</td>');
5517: }
5518: $r->print('</tr>');
5519: }
5520: $r->print('</tr></table><br />'."\n");
5521: }
5522:
5523: ######################################################
5524: ######################################################
5525:
5526: =pod
5527:
5528: =item * csv_print_select_table($r,$records,$d)
5529:
5530: Prints a table to create associations between values and table columns.
5531:
5532: $r is an Apache Request ref,
5533: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
5534: $d is an array of 2 element arrays (internal name, displayed name,defaultcol)
5535:
5536: =cut
5537:
5538: ######################################################
5539: ######################################################
5540: sub csv_print_select_table {
5541: my ($r,$records,$d) = @_;
5542: my $i=0;
5543: my $samples = &get_samples($records,1);
5544: $r->print(&mt('Associate columns with student attributes.')."\n".
5545: '<table border="2"><tr>'.
5546: '<th>'.&mt('Attribute').'</th>'.
5547: '<th>'.&mt('Column').'</th></tr>'."\n");
5548: foreach my $array_ref (@$d) {
5549: my ($value,$display,$defaultcol)=@{ $array_ref };
5550: $r->print('<tr><td>'.$display.'</td>');
5551:
5552: $r->print('<td><select name=f'.$i.
5553: ' onchange="javascript:flip(this.form,'.$i.');">');
5554: $r->print('<option value="none"></option>');
5555: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
5556: $r->print('<option value="'.$sample.'"'.
5557: ($sample eq $defaultcol ? ' selected="selected" ' : '').
5558: '>Column '.($sample+1).'</option>');
5559: }
5560: $r->print('</select></td></tr>'."\n");
5561: $i++;
5562: }
5563: $i--;
5564: return $i;
5565: }
5566:
5567: ######################################################
5568: ######################################################
5569:
5570: =pod
5571:
5572: =item * csv_samples_select_table($r,$records,$d)
5573:
5574: Prints a table of sample values from the upload and can make associate samples to internal names.
5575:
5576: $r is an Apache Request ref,
5577: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
5578: $d is an array of 2 element arrays (internal name, displayed name)
5579:
5580: =cut
5581:
5582: ######################################################
5583: ######################################################
5584: sub csv_samples_select_table {
5585: my ($r,$records,$d) = @_;
5586: my $i=0;
5587: #
5588: my $samples = &get_samples($records,3);
5589: $r->print('<table border=2><tr><th>'.
5590: &mt('Field').'</th><th>'.&mt('Samples').'</th></tr>');
5591:
5592: foreach my $key (sort(keys(%{ $samples->[0] }))) {
5593: $r->print('<tr><td><select name="f'.$i.'"'.
5594: ' onchange="javascript:flip(this.form,'.$i.');">');
5595: foreach my $option (@$d) {
5596: my ($value,$display,$defaultcol)=@{ $option };
5597: $r->print('<option value="'.$value.'"'.
5598: ($i eq $defaultcol ? ' selected="selected" ':'').'>'.
5599: $display.'</option>');
5600: }
5601: $r->print('</select></td><td>');
5602: foreach my $line (0..2) {
5603: if (defined($samples->[$line]{$key})) {
5604: $r->print($samples->[$line]{$key}."<br />\n");
5605: }
5606: }
5607: $r->print('</td></tr>');
5608: $i++;
5609: }
5610: $i--;
5611: return($i);
5612: }
5613:
5614: ######################################################
5615: ######################################################
5616:
5617: =pod
5618:
5619: =item clean_excel_name($name)
5620:
5621: Returns a replacement for $name which does not contain any illegal characters.
5622:
5623: =cut
5624:
5625: ######################################################
5626: ######################################################
5627: sub clean_excel_name {
5628: my ($name) = @_;
5629: $name =~ s/[:\*\?\/\\]//g;
5630: if (length($name) > 31) {
5631: $name = substr($name,0,31);
5632: }
5633: return $name;
5634: }
5635:
5636: =pod
5637:
5638: =item * check_if_partid_hidden($id,$symb,$udom,$uname)
5639:
5640: Returns either 1 or undef
5641:
5642: 1 if the part is to be hidden, undef if it is to be shown
5643:
5644: Arguments are:
5645:
5646: $id the id of the part to be checked
5647: $symb, optional the symb of the resource to check
5648: $udom, optional the domain of the user to check for
5649: $uname, optional the username of the user to check for
5650:
5651: =cut
5652:
5653: sub check_if_partid_hidden {
5654: my ($id,$symb,$udom,$uname) = @_;
5655: my $hiddenparts=&Apache::lonnet::EXT('resource.0.hiddenparts',
5656: $symb,$udom,$uname);
5657: my $truth=1;
5658: #if the string starts with !, then the list is the list to show not hide
5659: if ($hiddenparts=~s/^\s*!//) { $truth=undef; }
5660: my @hiddenlist=split(/,/,$hiddenparts);
5661: foreach my $checkid (@hiddenlist) {
5662: if ($checkid =~ /^\s*\Q$id\E\s*$/) { return $truth; }
5663: }
5664: return !$truth;
5665: }
5666:
5667:
5668: ############################################################
5669: ############################################################
5670:
5671: =pod
5672:
5673: =back
5674:
5675: =head1 cgi-bin script and graphing routines
5676:
5677: =over 4
5678:
5679: =item get_cgi_id
5680:
5681: Inputs: none
5682:
5683: Returns an id which can be used to pass environment variables
5684: to various cgi-bin scripts. These environment variables will
5685: be removed from the users environment after a given time by
5686: the routine &Apache::lonnet::transfer_profile_to_env.
5687:
5688: =cut
5689:
5690: ############################################################
5691: ############################################################
5692: my $uniq=0;
5693: sub get_cgi_id {
5694: $uniq=($uniq+1)%100000;
5695: return (time.'_'.$$.'_'.$uniq);
5696: }
5697:
5698: ############################################################
5699: ############################################################
5700:
5701: =pod
5702:
5703: =item DrawBarGraph
5704:
5705: Facilitates the plotting of data in a (stacked) bar graph.
5706: Puts plot definition data into the users environment in order for
5707: graph.png to plot it. Returns an <img> tag for the plot.
5708: The bars on the plot are labeled '1','2',...,'n'.
5709:
5710: Inputs:
5711:
5712: =over 4
5713:
5714: =item $Title: string, the title of the plot
5715:
5716: =item $xlabel: string, text describing the X-axis of the plot
5717:
5718: =item $ylabel: string, text describing the Y-axis of the plot
5719:
5720: =item $Max: scalar, the maximum Y value to use in the plot
5721: If $Max is < any data point, the graph will not be rendered.
5722:
5723: =item $colors: array ref holding the colors to be used for the data sets when
5724: they are plotted. If undefined, default values will be used.
5725:
5726: =item $labels: array ref holding the labels to use on the x-axis for the bars.
5727:
5728: =item @Values: An array of array references. Each array reference holds data
5729: to be plotted in a stacked bar chart.
5730:
5731: =item If the final element of @Values is a hash reference the key/value
5732: pairs will be added to the graph definition.
5733:
5734: =back
5735:
5736: Returns:
5737:
5738: An <img> tag which references graph.png and the appropriate identifying
5739: information for the plot.
5740:
5741: =cut
5742:
5743: ############################################################
5744: ############################################################
5745: sub DrawBarGraph {
5746: my ($Title,$xlabel,$ylabel,$Max,$colors,$labels,@Values)=@_;
5747: #
5748: if (! defined($colors)) {
5749: $colors = ['#33ff00',
5750: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
5751: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
5752: ];
5753: }
5754: my $extra_settings = {};
5755: if (ref($Values[-1]) eq 'HASH') {
5756: $extra_settings = pop(@Values);
5757: }
5758: #
5759: my $identifier = &get_cgi_id();
5760: my $id = 'cgi.'.$identifier;
5761: if (! @Values || ref($Values[0]) ne 'ARRAY') {
5762: return '';
5763: }
5764: #
5765: my @Labels;
5766: if (defined($labels)) {
5767: @Labels = @$labels;
5768: } else {
5769: for (my $i=0;$i<@{$Values[0]};$i++) {
5770: push (@Labels,$i+1);
5771: }
5772: }
5773: #
5774: my $NumBars = scalar(@{$Values[0]});
5775: if ($NumBars < scalar(@Labels)) { $NumBars = scalar(@Labels); }
5776: my %ValuesHash;
5777: my $NumSets=1;
5778: foreach my $array (@Values) {
5779: next if (! ref($array));
5780: $ValuesHash{$id.'.data.'.$NumSets++} =
5781: join(',',@$array);
5782: }
5783: #
5784: my ($height,$width,$xskip,$bar_width) = (200,120,1,15);
5785: if ($NumBars < 3) {
5786: $width = 120+$NumBars*32;
5787: $xskip = 1;
5788: $bar_width = 30;
5789: } elsif ($NumBars < 5) {
5790: $width = 120+$NumBars*20;
5791: $xskip = 1;
5792: $bar_width = 20;
5793: } elsif ($NumBars < 10) {
5794: $width = 120+$NumBars*15;
5795: $xskip = 1;
5796: $bar_width = 15;
5797: } elsif ($NumBars <= 25) {
5798: $width = 120+$NumBars*11;
5799: $xskip = 5;
5800: $bar_width = 8;
5801: } elsif ($NumBars <= 50) {
5802: $width = 120+$NumBars*8;
5803: $xskip = 5;
5804: $bar_width = 4;
5805: } else {
5806: $width = 120+$NumBars*8;
5807: $xskip = 5;
5808: $bar_width = 4;
5809: }
5810: #
5811: $Max = 1 if ($Max < 1);
5812: if ( int($Max) < $Max ) {
5813: $Max++;
5814: $Max = int($Max);
5815: }
5816: $Title = '' if (! defined($Title));
5817: $xlabel = '' if (! defined($xlabel));
5818: $ylabel = '' if (! defined($ylabel));
5819: $ValuesHash{$id.'.title'} = &escape($Title);
5820: $ValuesHash{$id.'.xlabel'} = &escape($xlabel);
5821: $ValuesHash{$id.'.ylabel'} = &escape($ylabel);
5822: $ValuesHash{$id.'.y_max_value'} = $Max;
5823: $ValuesHash{$id.'.NumBars'} = $NumBars;
5824: $ValuesHash{$id.'.NumSets'} = $NumSets;
5825: $ValuesHash{$id.'.PlotType'} = 'bar';
5826: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
5827: $ValuesHash{$id.'.height'} = $height;
5828: $ValuesHash{$id.'.width'} = $width;
5829: $ValuesHash{$id.'.xskip'} = $xskip;
5830: $ValuesHash{$id.'.bar_width'} = $bar_width;
5831: $ValuesHash{$id.'.labels'} = join(',',@Labels);
5832: #
5833: # Deal with other parameters
5834: while (my ($key,$value) = each(%$extra_settings)) {
5835: $ValuesHash{$id.'.'.$key} = $value;
5836: }
5837: #
5838: &Apache::lonnet::appenv(%ValuesHash);
5839: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
5840: }
5841:
5842: ############################################################
5843: ############################################################
5844:
5845: =pod
5846:
5847: =item DrawXYGraph
5848:
5849: Facilitates the plotting of data in an XY graph.
5850: Puts plot definition data into the users environment in order for
5851: graph.png to plot it. Returns an <img> tag for the plot.
5852:
5853: Inputs:
5854:
5855: =over 4
5856:
5857: =item $Title: string, the title of the plot
5858:
5859: =item $xlabel: string, text describing the X-axis of the plot
5860:
5861: =item $ylabel: string, text describing the Y-axis of the plot
5862:
5863: =item $Max: scalar, the maximum Y value to use in the plot
5864: If $Max is < any data point, the graph will not be rendered.
5865:
5866: =item $colors: Array ref containing the hex color codes for the data to be
5867: plotted in. If undefined, default values will be used.
5868:
5869: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
5870:
5871: =item $Ydata: Array ref containing Array refs.
5872: Each of the contained arrays will be plotted as a separate curve.
5873:
5874: =item %Values: hash indicating or overriding any default values which are
5875: passed to graph.png.
5876: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
5877:
5878: =back
5879:
5880: Returns:
5881:
5882: An <img> tag which references graph.png and the appropriate identifying
5883: information for the plot.
5884:
5885: =cut
5886:
5887: ############################################################
5888: ############################################################
5889: sub DrawXYGraph {
5890: my ($Title,$xlabel,$ylabel,$Max,$colors,$Xlabels,$Ydata,%Values)=@_;
5891: #
5892: # Create the identifier for the graph
5893: my $identifier = &get_cgi_id();
5894: my $id = 'cgi.'.$identifier;
5895: #
5896: $Title = '' if (! defined($Title));
5897: $xlabel = '' if (! defined($xlabel));
5898: $ylabel = '' if (! defined($ylabel));
5899: my %ValuesHash =
5900: (
5901: $id.'.title' => &escape($Title),
5902: $id.'.xlabel' => &escape($xlabel),
5903: $id.'.ylabel' => &escape($ylabel),
5904: $id.'.y_max_value'=> $Max,
5905: $id.'.labels' => join(',',@$Xlabels),
5906: $id.'.PlotType' => 'XY',
5907: );
5908: #
5909: if (defined($colors) && ref($colors) eq 'ARRAY') {
5910: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
5911: }
5912: #
5913: if (! ref($Ydata) || ref($Ydata) ne 'ARRAY') {
5914: return '';
5915: }
5916: my $NumSets=1;
5917: foreach my $array (@{$Ydata}){
5918: next if (! ref($array));
5919: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
5920: }
5921: $ValuesHash{$id.'.NumSets'} = $NumSets-1;
5922: #
5923: # Deal with other parameters
5924: while (my ($key,$value) = each(%Values)) {
5925: $ValuesHash{$id.'.'.$key} = $value;
5926: }
5927: #
5928: &Apache::lonnet::appenv(%ValuesHash);
5929: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
5930: }
5931:
5932: ############################################################
5933: ############################################################
5934:
5935: =pod
5936:
5937: =item DrawXYYGraph
5938:
5939: Facilitates the plotting of data in an XY graph with two Y axes.
5940: Puts plot definition data into the users environment in order for
5941: graph.png to plot it. Returns an <img> tag for the plot.
5942:
5943: Inputs:
5944:
5945: =over 4
5946:
5947: =item $Title: string, the title of the plot
5948:
5949: =item $xlabel: string, text describing the X-axis of the plot
5950:
5951: =item $ylabel: string, text describing the Y-axis of the plot
5952:
5953: =item $colors: Array ref containing the hex color codes for the data to be
5954: plotted in. If undefined, default values will be used.
5955:
5956: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
5957:
5958: =item $Ydata1: The first data set
5959:
5960: =item $Min1: The minimum value of the left Y-axis
5961:
5962: =item $Max1: The maximum value of the left Y-axis
5963:
5964: =item $Ydata2: The second data set
5965:
5966: =item $Min2: The minimum value of the right Y-axis
5967:
5968: =item $Max2: The maximum value of the left Y-axis
5969:
5970: =item %Values: hash indicating or overriding any default values which are
5971: passed to graph.png.
5972: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
5973:
5974: =back
5975:
5976: Returns:
5977:
5978: An <img> tag which references graph.png and the appropriate identifying
5979: information for the plot.
5980:
5981: =cut
5982:
5983: ############################################################
5984: ############################################################
5985: sub DrawXYYGraph {
5986: my ($Title,$xlabel,$ylabel,$colors,$Xlabels,$Ydata1,$Min1,$Max1,
5987: $Ydata2,$Min2,$Max2,%Values)=@_;
5988: #
5989: # Create the identifier for the graph
5990: my $identifier = &get_cgi_id();
5991: my $id = 'cgi.'.$identifier;
5992: #
5993: $Title = '' if (! defined($Title));
5994: $xlabel = '' if (! defined($xlabel));
5995: $ylabel = '' if (! defined($ylabel));
5996: my %ValuesHash =
5997: (
5998: $id.'.title' => &escape($Title),
5999: $id.'.xlabel' => &escape($xlabel),
6000: $id.'.ylabel' => &escape($ylabel),
6001: $id.'.labels' => join(',',@$Xlabels),
6002: $id.'.PlotType' => 'XY',
6003: $id.'.NumSets' => 2,
6004: $id.'.two_axes' => 1,
6005: $id.'.y1_max_value' => $Max1,
6006: $id.'.y1_min_value' => $Min1,
6007: $id.'.y2_max_value' => $Max2,
6008: $id.'.y2_min_value' => $Min2,
6009: );
6010: #
6011: if (defined($colors) && ref($colors) eq 'ARRAY') {
6012: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
6013: }
6014: #
6015: if (! ref($Ydata1) || ref($Ydata1) ne 'ARRAY' ||
6016: ! ref($Ydata2) || ref($Ydata2) ne 'ARRAY'){
6017: return '';
6018: }
6019: my $NumSets=1;
6020: foreach my $array ($Ydata1,$Ydata2){
6021: next if (! ref($array));
6022: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
6023: }
6024: #
6025: # Deal with other parameters
6026: while (my ($key,$value) = each(%Values)) {
6027: $ValuesHash{$id.'.'.$key} = $value;
6028: }
6029: #
6030: &Apache::lonnet::appenv(%ValuesHash);
6031: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
6032: }
6033:
6034: ############################################################
6035: ############################################################
6036:
6037: =pod
6038:
6039: =back
6040:
6041: =head1 Statistics helper routines?
6042:
6043: Bad place for them but what the hell.
6044:
6045: =over 4
6046:
6047: =item &chartlink
6048:
6049: Returns a link to the chart for a specific student.
6050:
6051: Inputs:
6052:
6053: =over 4
6054:
6055: =item $linktext: The text of the link
6056:
6057: =item $sname: The students username
6058:
6059: =item $sdomain: The students domain
6060:
6061: =back
6062:
6063: =back
6064:
6065: =cut
6066:
6067: ############################################################
6068: ############################################################
6069: sub chartlink {
6070: my ($linktext, $sname, $sdomain) = @_;
6071: my $link = '<a href="/adm/statistics?reportSelected=student_assessment'.
6072: '&SelectedStudent='.&escape($sname.':'.$sdomain).
6073: '&chartoutputmode='.HTML::Entities::encode('html, with all links').
6074: '">'.$linktext.'</a>';
6075: }
6076:
6077: #######################################################
6078: #######################################################
6079:
6080: =pod
6081:
6082: =head1 Course Environment Routines
6083:
6084: =over 4
6085:
6086: =item &restore_course_settings
6087:
6088: =item &store_course_settings
6089:
6090: Restores/Store indicated form parameters from the course environment.
6091: Will not overwrite existing values of the form parameters.
6092:
6093: Inputs:
6094: a scalar describing the data (e.g. 'chart', 'problem_analysis')
6095:
6096: a hash ref describing the data to be stored. For example:
6097:
6098: %Save_Parameters = ('Status' => 'scalar',
6099: 'chartoutputmode' => 'scalar',
6100: 'chartoutputdata' => 'scalar',
6101: 'Section' => 'array',
6102: 'Group' => 'array',
6103: 'StudentData' => 'array',
6104: 'Maps' => 'array');
6105:
6106: Returns: both routines return nothing
6107:
6108: =cut
6109:
6110: #######################################################
6111: #######################################################
6112: sub store_course_settings {
6113: return &store_settings($env{'request.course.id'},@_);
6114: }
6115:
6116: sub store_settings {
6117: # save to the environment
6118: # appenv the same items, just to be safe
6119: my $udom = $env{'user.domain'};
6120: my $uname = $env{'user.name'};
6121: my ($context,$prefix,$Settings) = @_;
6122: my %SaveHash;
6123: my %AppHash;
6124: while (my ($setting,$type) = each(%$Settings)) {
6125: my $basename = join('.','internal',$context,$prefix,$setting);
6126: my $envname = 'environment.'.$basename;
6127: if (exists($env{'form.'.$setting})) {
6128: # Save this value away
6129: if ($type eq 'scalar' &&
6130: (! exists($env{$envname}) ||
6131: $env{$envname} ne $env{'form.'.$setting})) {
6132: $SaveHash{$basename} = $env{'form.'.$setting};
6133: $AppHash{$envname} = $env{'form.'.$setting};
6134: } elsif ($type eq 'array') {
6135: my $stored_form;
6136: if (ref($env{'form.'.$setting})) {
6137: $stored_form = join(',',
6138: map {
6139: &escape($_);
6140: } sort(@{$env{'form.'.$setting}}));
6141: } else {
6142: $stored_form =
6143: &escape($env{'form.'.$setting});
6144: }
6145: # Determine if the array contents are the same.
6146: if ($stored_form ne $env{$envname}) {
6147: $SaveHash{$basename} = $stored_form;
6148: $AppHash{$envname} = $stored_form;
6149: }
6150: }
6151: }
6152: }
6153: my $put_result = &Apache::lonnet::put('environment',\%SaveHash,
6154: $udom,$uname);
6155: if ($put_result !~ /^(ok|delayed)/) {
6156: &Apache::lonnet::logthis('unable to save form parameters, '.
6157: 'got error:'.$put_result);
6158: }
6159: # Make sure these settings stick around in this session, too
6160: &Apache::lonnet::appenv(%AppHash);
6161: return;
6162: }
6163:
6164: sub restore_course_settings {
6165: return &restore_settings($env{'request.course.id'},@_);
6166: }
6167:
6168: sub restore_settings {
6169: my ($context,$prefix,$Settings) = @_;
6170: while (my ($setting,$type) = each(%$Settings)) {
6171: next if (exists($env{'form.'.$setting}));
6172: my $envname = 'environment.internal.'.$context.'.'.$prefix.
6173: '.'.$setting;
6174: if (exists($env{$envname})) {
6175: if ($type eq 'scalar') {
6176: $env{'form.'.$setting} = $env{$envname};
6177: } elsif ($type eq 'array') {
6178: $env{'form.'.$setting} = [
6179: map {
6180: &unescape($_);
6181: } split(',',$env{$envname})
6182: ];
6183: }
6184: }
6185: }
6186: }
6187:
6188: ############################################################
6189: ############################################################
6190:
6191: sub commit_customrole {
6192: my ($udom,$uname,$url,$three,$four,$five,$start,$end) = @_;
6193: my $output = &mt('Assigning custom role').' "'.$five.'" by '.$four.'@'.$three.' in '.$url.
6194: ($start?', '.&mt('starting').' '.localtime($start):'').
6195: ($end?', ending '.localtime($end):'').': <b>'.
6196: &Apache::lonnet::assigncustomrole(
6197: $udom,$uname,$url,$three,$four,$five,$end,$start).
6198: '</b><br />';
6199: return $output;
6200: }
6201:
6202: sub commit_standardrole {
6203: my ($udom,$uname,$url,$three,$start,$end,$one,$two,$sec) = @_;
6204: my $output;
6205: my $logmsg;
6206: if ($three eq 'st') {
6207: my $result = &commit_studentrole(\$logmsg,$udom,$uname,$url,$three,$start,$end,$one,$two,$sec);
6208: if (($result =~ /^error/) || ($result eq 'not_in_class') || ($result eq 'unknown_course')) {
6209: $output = "Error: $result\n";
6210: } else {
6211: $output = &mt('Assigning').' '.$three.' in '.$url.
6212: ($start?', '.&mt('starting').' '.localtime($start):'').
6213: ($end?', '.&mt('ending').' '.localtime($end):'').
6214: ': <b>'.$result.'</b><br />'.
6215: &mt('Add to classlist').': <b>ok</b><br />';
6216: }
6217: } else {
6218: $output = &mt('Assigning').' '.$three.' in '.$url.
6219: ($start?', '.&mt('starting').' '.localtime($start):'').
6220: ($end?', '.&mt('ending').' '.localtime($end):'').': <b>'.
6221: &Apache::lonnet::assignrole(
6222: $udom,$uname,$url,$three,$end,$start).
6223: '</b><br />';
6224: }
6225: return $output;
6226: }
6227:
6228: sub commit_studentrole {
6229: my ($logmsg,$udom,$uname,$url,$three,$start,$end,$one,$two,$sec) = @_;
6230: my $linefeed = '<br />'."\n";
6231: my $result;
6232: if (defined($one) && defined($two)) {
6233: my $cid=$one.'_'.$two;
6234: my $oldsec=&Apache::lonnet::getsection($udom,$uname,$cid);
6235: my $secchange = 0;
6236: my $expire_role_result;
6237: my $modify_section_result;
6238: unless ($oldsec eq '-1') {
6239: unless ($sec eq $oldsec) {
6240: $secchange = 1;
6241: my $uurl='/'.$cid;
6242: $uurl=~s/\_/\//g;
6243: if ($oldsec) {
6244: $uurl.='/'.$oldsec;
6245: }
6246: $expire_role_result = &Apache::lonnet::assignrole($udom,$uname,$uurl,'st',time);
6247: $result = $expire_role_result;
6248: }
6249: }
6250: if (($expire_role_result eq 'ok') || ($secchange == 0)) {
6251: $modify_section_result = &Apache::lonnet::modify_student_enrollment($udom,$uname,undef,undef,undef,undef,undef,$sec,$end,$start,'','',$cid);
6252: if ($modify_section_result =~ /^ok/) {
6253: if ($secchange == 1) {
6254: $$logmsg .= "Section for $uname switched from old section: $oldsec to new section: $sec".$linefeed;
6255: } elsif ($oldsec eq '-1') {
6256: $$logmsg .= "New student role for $uname in section $sec in course $cid".$linefeed;
6257: } else {
6258: $$logmsg .= "Student $uname assigned to unchanged section $sec in course $cid".$linefeed;
6259: }
6260: } else {
6261: $$logmsg .= "Error when attempting section change for $uname from old section $oldsec to new section: $sec in course $cid -error: $modify_section_result".$linefeed;
6262: }
6263: $result = $modify_section_result;
6264: } elsif ($secchange == 1) {
6265: $$logmsg .= "Error when attempting to expire role for $uname in old section $oldsec in course $cid -error: $expire_role_result".$linefeed;
6266: }
6267: } else {
6268: $$logmsg .= "Incomplete course id defined. Addition of user $uname from domain $udom to course $one\_$two, section $sec not completed.$linefeed";
6269: $result = "error: incomplete course id\n";
6270: }
6271: return $result;
6272: }
6273:
6274: ############################################################
6275: ############################################################
6276:
6277: sub construct_course {
6278: my ($args,$logmsg,$courseid,$crsudom,$crsunum,$udom,$uname) = @_;
6279: my $outcome;
6280:
6281: #
6282: # Open course
6283: #
6284: my $crstype = lc($args->{'crstype'});
6285: my %cenv=();
6286: $$courseid=&Apache::lonnet::createcourse($args->{'course_domain'},
6287: $args->{'cdescr'},
6288: $args->{'curl'},
6289: $args->{'course_home'},
6290: $args->{'nonstandard'},
6291: $args->{'crscode'},
6292: $args->{'ccuname'}.':'.
6293: $args->{'ccdomain'},
6294: $args->{'crstype'});
6295:
6296: # Note: The testing routines depend on this being output; see
6297: # Utils::Course. This needs to at least be output as a comment
6298: # if anyone ever decides to not show this, and Utils::Course::new
6299: # will need to be suitably modified.
6300: $outcome .= &mt('New LON-CAPA [_1] ID: [_2]<br />',$crstype,$$courseid);
6301: #
6302: # Check if created correctly
6303: #
6304: ($$crsudom,$$crsunum)= &LONCAPA::split_courseid($$courseid);
6305: my $crsuhome=&Apache::lonnet::homeserver($$crsunum,$$crsudom);
6306: $outcome .= &mt('Created on').': '.$crsuhome.'<br>';
6307: #
6308: # Are we cloning?
6309: #
6310: my $cloneid='';
6311: if (($args->{'clonecourse'}) && ($args->{'clonedomain'})) {
6312: $cloneid='/'.$args->{'clonedomain'}.'/'.$args->{'clonecourse'};
6313: my ($clonecrsudom,$clonecrsunum)= &LONCAPA::split_courseid($cloneid);
6314: my $clonehome=&Apache::lonnet::homeserver($clonecrsunum,$clonecrsudom);
6315: if ($clonehome eq 'no_host') {
6316: $outcome .=
6317: '<br /><font color="red">'.&mt('Attempting to clone non-existing [_1]',$crstype).' '.$cloneid.'</font>';
6318: } else {
6319: $outcome .=
6320: '<br /><font color="green">'.&mt('Cloning [_1] from [_2]',$crstype,$clonehome).'</font>';
6321: my %oldcenv=&Apache::lonnet::dump('environment',$$crsudom,$$crsunum);
6322: # Copy all files
6323: &Apache::lonclonecourse::copycoursefiles($cloneid,$$courseid);
6324: # Restore URL
6325: $cenv{'url'}=$oldcenv{'url'};
6326: # Restore title
6327: $cenv{'description'}=$oldcenv{'description'};
6328: # restore grading mode
6329: if (defined($oldcenv{'grading'})) {
6330: $cenv{'grading'}=$oldcenv{'grading'};
6331: }
6332: # Mark as cloned
6333: $cenv{'clonedfrom'}=$cloneid;
6334: delete($cenv{'default_enrollment_start_date'});
6335: delete($cenv{'default_enrollment_end_date'});
6336: }
6337: }
6338: #
6339: # Set environment (will override cloned, if existing)
6340: #
6341: my @sections = ();
6342: my @xlists = ();
6343: if ($args->{'crstype'}) {
6344: $cenv{'type'}=$args->{'crstype'};
6345: }
6346: if ($args->{'crsid'}) {
6347: $cenv{'courseid'}=$args->{'crsid'};
6348: }
6349: if ($args->{'crscode'}) {
6350: $cenv{'internal.coursecode'}=$args->{'crscode'};
6351: }
6352: if ($args->{'crsquota'} ne '') {
6353: $cenv{'internal.coursequota'}=$args->{'crsquota'};
6354: } else {
6355: $cenv{'internal.coursequota'}=$args->{'crsquota'} = 20;
6356: }
6357: if ($args->{'ccuname'}) {
6358: $cenv{'internal.courseowner'} = $args->{'ccuname'}.
6359: ':'.$args->{'ccdomain'};
6360: } else {
6361: $cenv{'internal.courseowner'} = $args->{'curruser'};
6362: }
6363:
6364: my @badclasses = (); # Used to accumulate sections/crosslistings that did not pass classlist access check for course owner.
6365: if ($args->{'crssections'}) {
6366: $cenv{'internal.sectionnums'} = '';
6367: if ($args->{'crssections'} =~ m/,/) {
6368: @sections = split/,/,$args->{'crssections'};
6369: } else {
6370: $sections[0] = $args->{'crssections'};
6371: }
6372: if (@sections > 0) {
6373: foreach my $item (@sections) {
6374: my ($sec,$gp) = split/:/,$item;
6375: my $class = $args->{'crscode'}.$sec;
6376: my $addcheck = &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$class,$cenv{'internal.courseowner'});
6377: $cenv{'internal.sectionnums'} .= $item.',';
6378: unless ($addcheck eq 'ok') {
6379: push @badclasses, $class;
6380: }
6381: }
6382: $cenv{'internal.sectionnums'} =~ s/,$//;
6383: }
6384: }
6385: # do not hide course coordinator from staff listing,
6386: # even if privileged
6387: $cenv{'nothideprivileged'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
6388: # add crosslistings
6389: if ($args->{'crsxlist'}) {
6390: $cenv{'internal.crosslistings'}='';
6391: if ($args->{'crsxlist'} =~ m/,/) {
6392: @xlists = split/,/,$args->{'crsxlist'};
6393: } else {
6394: $xlists[0] = $args->{'crsxlist'};
6395: }
6396: if (@xlists > 0) {
6397: foreach my $item (@xlists) {
6398: my ($xl,$gp) = split/:/,$item;
6399: my $addcheck = &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$xl,$cenv{'internal.courseowner'});
6400: $cenv{'internal.crosslistings'} .= $item.',';
6401: unless ($addcheck eq 'ok') {
6402: push @badclasses, $xl;
6403: }
6404: }
6405: $cenv{'internal.crosslistings'} =~ s/,$//;
6406: }
6407: }
6408: if ($args->{'autoadds'}) {
6409: $cenv{'internal.autoadds'}=$args->{'autoadds'};
6410: }
6411: if ($args->{'autodrops'}) {
6412: $cenv{'internal.autodrops'}=$args->{'autodrops'};
6413: }
6414: # check for notification of enrollment changes
6415: my @notified = ();
6416: if ($args->{'notify_owner'}) {
6417: if ($args->{'ccuname'} ne '') {
6418: push(@notified,$args->{'ccuname'}.':'.$args->{'ccdomain'});
6419: }
6420: }
6421: if ($args->{'notify_dc'}) {
6422: if ($uname ne '') {
6423: push(@notified,$uname.'@'.$udom);
6424: }
6425: }
6426: if (@notified > 0) {
6427: my $notifylist;
6428: if (@notified > 1) {
6429: $notifylist = join(',',@notified);
6430: } else {
6431: $notifylist = $notified[0];
6432: }
6433: $cenv{'internal.notifylist'} = $notifylist;
6434: }
6435: if (@badclasses > 0) {
6436: my %lt=&Apache::lonlocal::texthash(
6437: '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',
6438: 'dnhr' => 'does not have rights to access enrollment in these classes',
6439: 'adby' => 'as determined by the policies of your institution on access to official classlists'
6440: );
6441: $outcome .= '<font color="red">'.$lt{'tclb'}.' ('.$cenv{'internal.courseowner'}.') - '.$lt{'dnhr'}.' ('.$lt{'adby'}.').<br /><ul>'."\n";
6442: foreach (@badclasses) {
6443: $outcome .= "<li>$_</li>\n";
6444: }
6445: $outcome .= "</ul><br /><br /></font>\n";
6446: }
6447: if ($args->{'no_end_date'}) {
6448: $args->{'endaccess'} = 0;
6449: }
6450: $cenv{'internal.autostart'}=$args->{'enrollstart'};
6451: $cenv{'internal.autoend'}=$args->{'enrollend'};
6452: $cenv{'default_enrollment_start_date'}=$args->{'startaccess'};
6453: $cenv{'default_enrollment_end_date'}=$args->{'endaccess'};
6454: if ($args->{'showphotos'}) {
6455: $cenv{'internal.showphotos'}=$args->{'showphotos'};
6456: }
6457: $cenv{'internal.authtype'} = $args->{'authtype'};
6458: $cenv{'internal.autharg'} = $args->{'autharg'};
6459: if ( ($cenv{'internal.authtype'} =~ /^krb/) && ($cenv{'internal.autoadds'} == 1)) {
6460: if (! defined($cenv{'internal.autharg'}) || $cenv{'internal.autharg'} eq '') {
6461: $outcome .= '<font color="red" size="+1">'.
6462: &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').'</font></p>';
6463: }
6464: }
6465: if (($args->{'ccdomain'}) && ($args->{'ccuname'})) {
6466: if ($args->{'setpolicy'}) {
6467: $cenv{'policy.email'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
6468: }
6469: if ($args->{'setcontent'}) {
6470: $cenv{'question.email'}=$args->{'ccuname'}.':'.$args->{'ccdomain'};
6471: }
6472: }
6473: if ($args->{'reshome'}) {
6474: $cenv{'reshome'}=$args->{'reshome'}.'/';
6475: $cenv{'reshome'}=~s/\/+$/\//;
6476: }
6477: #
6478: # course has keyed access
6479: #
6480: if ($args->{'setkeys'}) {
6481: $cenv{'keyaccess'}='yes';
6482: }
6483: # if specified, key authority is not course, but user
6484: # only active if keyaccess is yes
6485: if ($args->{'keyauth'}) {
6486: my ($user,$domain) = split(':',$args->{'keyauth'});
6487: $user = &LONCAPA::clean_username($user);
6488: $domain = &LONCAPA::clean_username($domain);
6489: if ($user ne '' && $domain ne '') {
6490: $cenv{'keyauth'}=$user.':'.$domain;
6491: }
6492: }
6493:
6494: if ($args->{'disresdis'}) {
6495: $cenv{'pch.roles.denied'}='st';
6496: }
6497: if ($args->{'disablechat'}) {
6498: $cenv{'plc.roles.denied'}='st';
6499: }
6500:
6501: # Record we've not yet viewed the Course Initialization Helper for this
6502: # course
6503: $cenv{'course.helper.not.run'} = 1;
6504: #
6505: # Use new Randomseed
6506: #
6507: $cenv{'rndseed'}=&Apache::lonnet::latest_rnd_algorithm_id();;
6508: $cenv{'receiptalg'}=&Apache::lonnet::latest_receipt_algorithm_id();;
6509: #
6510: # The encryption code and receipt prefix for this course
6511: #
6512: $cenv{'internal.encseed'}=$Apache::lonnet::perlvar{'lonReceipt'}.$$.time.int(rand(9999));
6513: $cenv{'internal.encpref'}=100+int(9*rand(99));
6514: #
6515: # By default, use standard grading
6516: if (!defined($cenv{'grading'})) { $cenv{'grading'} = 'standard'; }
6517:
6518: $outcome .= ('<br />'.&mt('Setting environment').': '.
6519: &Apache::lonnet::put('environment',\%cenv,$$crsudom,$$crsunum).'<br>');
6520: #
6521: # Open all assignments
6522: #
6523: if ($args->{'openall'}) {
6524: my $storeunder=$$crsudom.'_'.$$crsunum.'.0.opendate';
6525: my %storecontent = ($storeunder => time,
6526: $storeunder.'.type' => 'date_start');
6527:
6528: $outcome .= &mt('Opening all assignments').': '.&Apache::lonnet::cput
6529: ('resourcedata',\%storecontent,$$crsudom,$$crsunum).'<br>';
6530: }
6531: #
6532: # Set first page
6533: #
6534: unless (($args->{'nonstandard'}) || ($args->{'firstres'} eq 'blank')
6535: || ($cloneid)) {
6536: use LONCAPA::map;
6537: $outcome .= &mt('Setting first resource').': ';
6538:
6539: my $map = '/uploaded/'.$$crsudom.'/'.$$crsunum.'/default.sequence';
6540: my ($errtext,$fatal)=&LONCAPA::map::mapread($map);
6541:
6542: $outcome .= ($fatal?$errtext:'read ok').' - ';
6543: my $title; my $url;
6544: if ($args->{'firstres'} eq 'syl') {
6545: $title='Syllabus';
6546: $url='/public/'.$$crsudom.'/'.$$crsunum.'/syllabus';
6547: } else {
6548: $title='Navigate Contents';
6549: $url='/adm/navmaps';
6550: }
6551:
6552: $LONCAPA::map::resources[1]=$title.':'.$url.':false:start:res';
6553: (my $outtext,$errtext) = &LONCAPA::map::storemap($map,1);
6554:
6555: if ($errtext) { $fatal=2; }
6556: $outcome .= ($fatal?$errtext:'write ok').'<br />';
6557: }
6558: return $outcome;
6559: }
6560:
6561: ############################################################
6562: ############################################################
6563:
6564: sub course_type {
6565: my ($cid) = @_;
6566: if (!defined($cid)) {
6567: $cid = $env{'request.course.id'};
6568: }
6569: if (defined($env{'course.'.$cid.'.type'})) {
6570: return $env{'course.'.$cid.'.type'};
6571: } else {
6572: return 'Course';
6573: }
6574: }
6575:
6576: sub group_term {
6577: my $crstype = &course_type();
6578: my %names = (
6579: 'Course' => 'group',
6580: 'Group' => 'team',
6581: );
6582: return $names{$crstype};
6583: }
6584:
6585: sub icon {
6586: my ($file)=@_;
6587: my $curfext = lc((split(/\./,$file))[-1]);
6588: my $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/unknown.gif';
6589: my $embstyle = &Apache::loncommon::fileembstyle($curfext);
6590: if (!(!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn')) {
6591: if (-e $Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
6592: $Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
6593: $curfext.".gif") {
6594: $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
6595: $curfext.".gif";
6596: }
6597: }
6598: return &lonhttpdurl($iconname);
6599: }
6600:
6601: sub lonhttpdurl {
6602: my ($url)=@_;
6603: my $lonhttpd_port=$Apache::lonnet::perlvar{'lonhttpdPort'};
6604: if (!defined($lonhttpd_port)) { $lonhttpd_port='8080'; }
6605: return 'http://'.$ENV{'SERVER_NAME'}.':'.$lonhttpd_port.$url;
6606: }
6607:
6608: sub connection_aborted {
6609: my ($r)=@_;
6610: $r->print(" ");$r->rflush();
6611: my $c = $r->connection;
6612: return $c->aborted();
6613: }
6614:
6615: # Escapes strings that may have embedded 's that will be put into
6616: # strings as 'strings'.
6617: sub escape_single {
6618: my ($input) = @_;
6619: $input =~ s/\\/\\\\/g; # Escape the \'s..(must be first)>
6620: $input =~ s/\'/\\\'/g; # Esacpe the 's....
6621: return $input;
6622: }
6623:
6624: # Same as escape_single, but escape's "'s This
6625: # can be used for "strings"
6626: sub escape_double {
6627: my ($input) = @_;
6628: $input =~ s/\\/\\\\/g; # Escape the /'s..(must be first)>
6629: $input =~ s/\"/\\\"/g; # Esacpe the "s....
6630: return $input;
6631: }
6632:
6633: # Escapes the last element of a full URL.
6634: sub escape_url {
6635: my ($url) = @_;
6636: my @urlslices = split(/\//, $url,-1);
6637: my $lastitem = &escape(pop(@urlslices));
6638: return join('/',@urlslices).'/'.$lastitem;
6639: }
6640:
6641: # -------------------------------------------------------- Initliaze user login
6642: sub init_user_environment {
6643: my ($r, $username, $domain, $authhost, $form, $args) = @_;
6644: my $lonids=$Apache::lonnet::perlvar{'lonIDsDir'};
6645:
6646: my $public=($username eq 'public' && $domain eq 'public');
6647:
6648: # See if old ID present, if so, remove
6649:
6650: my ($filename,$cookie,$userroles);
6651: my $now=time;
6652:
6653: if ($public) {
6654: my $max_public=100;
6655: my $oldest;
6656: my $oldest_time=0;
6657: for(my $next=1;$next<=$max_public;$next++) {
6658: if (-e $lonids."/publicuser_$next.id") {
6659: my $mtime=(stat($lonids."/publicuser_$next.id"))[9];
6660: if ($mtime<$oldest_time || !$oldest_time) {
6661: $oldest_time=$mtime;
6662: $oldest=$next;
6663: }
6664: } else {
6665: $cookie="publicuser_$next";
6666: last;
6667: }
6668: }
6669: if (!$cookie) { $cookie="publicuser_$oldest"; }
6670: } else {
6671: # if this isn't a robot, kill any existing non-robot sessions
6672: if (!$args->{'robot'}) {
6673: opendir(DIR,$lonids);
6674: while ($filename=readdir(DIR)) {
6675: if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) {
6676: unlink($lonids.'/'.$filename);
6677: }
6678: }
6679: closedir(DIR);
6680: }
6681: # Give them a new cookie
6682: my $id = ($args->{'robot'} ? 'robot'.$args->{'robot'}
6683: : $now);
6684: $cookie="$username\_$id\_$domain\_$authhost";
6685:
6686: # Initialize roles
6687:
6688: $userroles=&Apache::lonnet::rolesinit($domain,$username,$authhost);
6689: }
6690: # ------------------------------------ Check browser type and MathML capability
6691:
6692: my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
6693: $clientunicode,$clientos) = &decode_user_agent($r);
6694:
6695: # -------------------------------------- Any accessibility options to remember?
6696: if (($form->{'interface'}) && ($form->{'remember'} eq 'true')) {
6697: foreach my $option ('imagesuppress','appletsuppress',
6698: 'embedsuppress','fontenhance','blackwhite') {
6699: if ($form->{$option} eq 'true') {
6700: &Apache::lonnet::put('environment',{$option => 'on'},
6701: $domain,$username);
6702: } else {
6703: &Apache::lonnet::del('environment',[$option],
6704: $domain,$username);
6705: }
6706: }
6707: }
6708: # ------------------------------------------------------------- Get environment
6709:
6710: my %userenv = &Apache::lonnet::dump('environment',$domain,$username);
6711: my ($tmp) = keys(%userenv);
6712: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
6713: # default remote control to off
6714: if ($userenv{'remote'} ne 'on') { $userenv{'remote'} = 'off'; }
6715: } else {
6716: undef(%userenv);
6717: }
6718: if (($userenv{'interface'}) && (!$form->{'interface'})) {
6719: $form->{'interface'}=$userenv{'interface'};
6720: }
6721: $env{'environment.remote'}=$userenv{'remote'};
6722: if ($userenv{'texengine'} eq 'ttm') { $clientmathml=1; }
6723:
6724: # --------------- Do not trust query string to be put directly into environment
6725: foreach my $option ('imagesuppress','appletsuppress',
6726: 'embedsuppress','fontenhance','blackwhite',
6727: 'interface','localpath','localres') {
6728: $form->{$option}=~s/[\n\r\=]//gs;
6729: }
6730: # --------------------------------------------------------- Write first profile
6731:
6732: {
6733: my %initial_env =
6734: ("user.name" => $username,
6735: "user.domain" => $domain,
6736: "user.home" => $authhost,
6737: "browser.type" => $clientbrowser,
6738: "browser.version" => $clientversion,
6739: "browser.mathml" => $clientmathml,
6740: "browser.unicode" => $clientunicode,
6741: "browser.os" => $clientos,
6742: "server.domain" => $Apache::lonnet::perlvar{'lonDefDomain'},
6743: "request.course.fn" => '',
6744: "request.course.uri" => '',
6745: "request.course.sec" => '',
6746: "request.role" => 'cm',
6747: "request.role.adv" => $env{'user.adv'},
6748: "request.host" => $ENV{'REMOTE_ADDR'},);
6749:
6750: if ($form->{'localpath'}) {
6751: $initial_env{"browser.localpath"} = $form->{'localpath'};
6752: $initial_env{"browser.localres"} = $form->{'localres'};
6753: }
6754:
6755: if ($public) {
6756: $initial_env{"environment.remote"} = "off";
6757: }
6758: if ($form->{'interface'}) {
6759: $form->{'interface'}=~s/\W//gs;
6760: $initial_env{"browser.interface"} = $form->{'interface'};
6761: $env{'browser.interface'}=$form->{'interface'};
6762: foreach my $option ('imagesuppress','appletsuppress',
6763: 'embedsuppress','fontenhance','blackwhite') {
6764: if (($form->{$option} eq 'true') ||
6765: ($userenv{$option} eq 'on')) {
6766: $initial_env{"browser.$option"} = "on";
6767: }
6768: }
6769: }
6770:
6771: $env{'user.environment'} = "$lonids/$cookie.id";
6772:
6773: if (tie(my %disk_env,'GDBM_File',"$lonids/$cookie.id",
6774: &GDBM_WRCREAT(),0640)) {
6775: &_add_to_env(\%disk_env,\%initial_env);
6776: &_add_to_env(\%disk_env,\%userenv,'environment.');
6777: &_add_to_env(\%disk_env,$userroles);
6778: if (ref($args->{'extra_env'})) {
6779: &_add_to_env(\%disk_env,$args->{'extra_env'});
6780: }
6781: untie(%disk_env);
6782: } else {
6783: &Apache::lonnet::logthis("<font color=\"blue\">WARNING: ".
6784: 'Could not create environment storage in lonauth: '.$!.'</font>');
6785: return 'error: '.$!;
6786: }
6787: }
6788: $env{'request.role'}='cm';
6789: $env{'request.role.adv'}=$env{'user.adv'};
6790: $env{'browser.type'}=$clientbrowser;
6791:
6792: return $cookie;
6793:
6794: }
6795:
6796: sub _add_to_env {
6797: my ($idf,$env_data,$prefix) = @_;
6798: while (my ($key,$value) = each(%$env_data)) {
6799: $idf->{$prefix.$key} = $value;
6800: $env{$prefix.$key} = $value;
6801: }
6802: }
6803:
6804:
6805: =pod
6806:
6807: =back
6808:
6809: =cut
6810:
6811: 1;
6812: __END__;
6813:
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