Annotation of loncom/interface/loncommon.pm, revision 1.336
1.10 albertel 1: # The LearningOnline Network with CAPA
1.1 albertel 2: # a pile of common routines
1.10 albertel 3: #
1.336 ! albertel 4: # $Id: loncommon.pm,v 1.335 2006/04/13 21:02:25 albertel Exp $
1.10 albertel 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: #
1.1 albertel 28:
29: # Makes a table out of the previous attempts
1.2 albertel 30: # Inputs result_from_symbread, user, domain, course_id
1.16 harris41 31: # Reads in non-network-related .tab files
1.1 albertel 32:
1.35 matthew 33: # POD header:
34:
1.45 matthew 35: =pod
36:
1.35 matthew 37: =head1 NAME
38:
39: Apache::loncommon - pile of common routines
40:
41: =head1 SYNOPSIS
42:
1.112 bowersj2 43: Common routines for manipulating connections, student answers,
44: domains, common Javascript fragments, etc.
1.35 matthew 45:
1.112 bowersj2 46: =head1 OVERVIEW
1.35 matthew 47:
1.112 bowersj2 48: A collection of commonly used subroutines that don't have a natural
49: home anywhere else. This collection helps remove
1.35 matthew 50: redundancy from other modules and increase efficiency of memory usage.
51:
52: =cut
53:
54: # End of POD header
1.1 albertel 55: package Apache::loncommon;
56:
57: use strict;
1.258 albertel 58: use Apache::lonnet;
1.46 matthew 59: use GDBM_File;
1.51 www 60: use POSIX qw(strftime mktime);
1.82 www 61: use Apache::lonmenu();
1.117 www 62: use Apache::lonlocal;
1.139 matthew 63: use HTML::Entities;
1.334 albertel 64: use Apache::lonhtmlcommon();
65: use Apache::loncoursedata();
1.117 www 66:
1.22 www 67: my $readit;
68:
1.157 matthew 69: ##
70: ## Global Variables
71: ##
1.46 matthew 72:
1.20 www 73: # ----------------------------------------------- Filetypes/Languages/Copyright
1.12 harris41 74: my %language;
1.124 www 75: my %supported_language;
1.12 harris41 76: my %cprtag;
1.192 taceyjo1 77: my %scprtag;
1.12 harris41 78: my %fe; my %fd;
1.41 ng 79: my %category_extensions;
1.12 harris41 80:
1.63 www 81: # ---------------------------------------------- Designs
82:
83: my %designhash;
84:
1.46 matthew 85: # ---------------------------------------------- Thesaurus variables
1.144 matthew 86: #
87: # %Keywords:
88: # A hash used by &keyword to determine if a word is considered a keyword.
89: # $thesaurus_db_file
90: # Scalar containing the full path to the thesaurus database.
1.46 matthew 91:
92: my %Keywords;
93: my $thesaurus_db_file;
94:
1.144 matthew 95: #
96: # Initialize values from language.tab, copyright.tab, filetypes.tab,
97: # thesaurus.tab, and filecategories.tab.
98: #
1.18 www 99: BEGIN {
1.46 matthew 100: # Variable initialization
101: $thesaurus_db_file = $Apache::lonnet::perlvar{'lonTabDir'}."/thesaurus.db";
102: #
1.22 www 103: unless ($readit) {
1.12 harris41 104: # ------------------------------------------------------------------- languages
105: {
1.158 raeburn 106: my $langtabfile = $Apache::lonnet::perlvar{'lonTabDir'}.
107: '/language.tab';
108: if ( open(my $fh,"<$langtabfile") ) {
109: while (<$fh>) {
110: next if /^\#/;
111: chomp;
112: my ($key,$two,$country,$three,$enc,$val,$sup)=(split(/\t/,$_));
113: $language{$key}=$val.' - '.$enc;
114: if ($sup) {
115: $supported_language{$key}=$sup;
116: }
117: }
118: close($fh);
119: }
1.12 harris41 120: }
121: # ------------------------------------------------------------------ copyrights
122: {
1.158 raeburn 123: my $copyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
124: '/copyright.tab';
125: if ( open (my $fh,"<$copyrightfile") ) {
126: while (<$fh>) {
127: next if /^\#/;
128: chomp;
129: my ($key,$val)=(split(/\s+/,$_,2));
130: $cprtag{$key}=$val;
131: }
132: close($fh);
133: }
1.12 harris41 134: }
1.192 taceyjo1 135: # ------------------------------------------------------------------ source copyrights
136: {
137: my $sourcecopyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
138: '/source_copyright.tab';
139: if ( open (my $fh,"<$sourcecopyrightfile") ) {
140: while (<$fh>) {
141: next if /^\#/;
142: chomp;
143: my ($key,$val)=(split(/\s+/,$_,2));
144: $scprtag{$key}=$val;
145: }
146: close($fh);
147: }
148: }
1.63 www 149:
150: # -------------------------------------------------------------- domain designs
151:
152: my $filename;
153: my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors';
154: opendir(DIR,$designdir);
155: while ($filename=readdir(DIR)) {
1.271 albertel 156: if ($filename!~/\.tab$/) { next; }
1.63 www 157: my ($domain)=($filename=~/^(\w+)\./);
1.271 albertel 158: {
159: my $designfile = $designdir.'/'.$filename;
160: if ( open (my $fh,"<$designfile") ) {
161: while (<$fh>) {
162: next if /^\#/;
163: chomp;
164: my ($key,$val)=(split(/\=/,$_));
165: if ($val) { $designhash{$domain.'.'.$key}=$val; }
166: }
167: close($fh);
168: }
169: }
1.63 www 170:
171: }
172: closedir(DIR);
173:
174:
1.15 harris41 175: # ------------------------------------------------------------- file categories
176: {
1.158 raeburn 177: my $categoryfile = $Apache::lonnet::perlvar{'lonTabDir'}.
178: '/filecategories.tab';
179: if ( open (my $fh,"<$categoryfile") ) {
180: while (<$fh>) {
181: next if /^\#/;
182: chomp;
183: my ($extension,$category)=(split(/\s+/,$_,2));
184: push @{$category_extensions{lc($category)}},$extension;
185: }
186: close($fh);
187: }
188:
1.15 harris41 189: }
1.12 harris41 190: # ------------------------------------------------------------------ file types
191: {
1.158 raeburn 192: my $typesfile = $Apache::lonnet::perlvar{'lonTabDir'}.
193: '/filetypes.tab';
194: if ( open (my $fh,"<$typesfile") ) {
1.16 harris41 195: while (<$fh>) {
1.158 raeburn 196: next if (/^\#/);
197: chomp;
198: my ($ending,$emb,$descr)=split(/\s+/,$_,3);
199: if ($descr ne '') {
200: $fe{$ending}=lc($emb);
201: $fd{$ending}=$descr;
202: }
203: }
204: close($fh);
205: }
1.12 harris41 206: }
1.22 www 207: &Apache::lonnet::logthis(
1.46 matthew 208: "<font color=yellow>INFO: Read file types</font>");
1.22 www 209: $readit=1;
1.46 matthew 210: } # end of unless($readit)
1.32 matthew 211:
212: }
1.112 bowersj2 213:
1.42 matthew 214: ###############################################################
215: ## HTML and Javascript Helper Functions ##
216: ###############################################################
217:
218: =pod
219:
1.112 bowersj2 220: =head1 HTML and Javascript Functions
1.42 matthew 221:
1.112 bowersj2 222: =over 4
223:
224: =item * browser_and_searcher_javascript ()
225:
226: X<browsing, javascript>X<searching, javascript>Returns a string
227: containing javascript with two functions, C<openbrowser> and
228: C<opensearcher>. Returned string does not contain E<lt>scriptE<gt>
229: tags.
1.42 matthew 230:
1.112 bowersj2 231: =item * openbrowser(formname,elementname,only,omit) [javascript]
1.42 matthew 232:
233: inputs: formname, elementname, only, omit
234:
235: formname and elementname indicate the name of the html form and name of
236: the element that the results of the browsing selection are to be placed in.
237:
238: Specifying 'only' will restrict the browser to displaying only files
1.185 www 239: with the given extension. Can be a comma separated list.
1.42 matthew 240:
241: Specifying 'omit' will restrict the browser to NOT displaying files
1.185 www 242: with the given extension. Can be a comma separated list.
1.42 matthew 243:
1.112 bowersj2 244: =item * opensearcher(formname, elementname) [javascript]
1.42 matthew 245:
246: Inputs: formname, elementname
247:
248: formname and elementname specify the name of the html form and the name
249: of the element the selection from the search results will be placed in.
250:
251: =cut
252:
253: sub browser_and_searcher_javascript {
1.199 albertel 254: my ($mode)=@_;
255: if (!defined($mode)) { $mode='edit'; }
1.170 www 256: my $resurl=&lastresurl();
1.42 matthew 257: return <<END;
1.219 albertel 258: // <!-- BEGIN LON-CAPA Internal
1.50 matthew 259: var editbrowser = null;
1.135 albertel 260: function openbrowser(formname,elementname,only,omit,titleelement) {
1.170 www 261: var url = '$resurl/?';
1.42 matthew 262: if (editbrowser == null) {
263: url += 'launch=1&';
264: }
265: url += 'catalogmode=interactive&';
1.199 albertel 266: url += 'mode=$mode&';
1.42 matthew 267: url += 'form=' + formname + '&';
268: if (only != null) {
269: url += 'only=' + only + '&';
1.217 albertel 270: } else {
271: url += 'only=&';
272: }
1.42 matthew 273: if (omit != null) {
274: url += 'omit=' + omit + '&';
1.217 albertel 275: } else {
276: url += 'omit=&';
277: }
1.135 albertel 278: if (titleelement != null) {
279: url += 'titleelement=' + titleelement + '&';
1.217 albertel 280: } else {
281: url += 'titleelement=&';
282: }
1.42 matthew 283: url += 'element=' + elementname + '';
284: var title = 'Browser';
1.217 albertel 285: var options = 'scrollbars=1,resizable=1,menubar=1,location=1';
1.42 matthew 286: options += ',width=700,height=600';
287: editbrowser = open(url,title,options,'1');
288: editbrowser.focus();
289: }
290: var editsearcher;
1.135 albertel 291: function opensearcher(formname,elementname,titleelement) {
1.42 matthew 292: var url = '/adm/searchcat?';
293: if (editsearcher == null) {
294: url += 'launch=1&';
295: }
296: url += 'catalogmode=interactive&';
1.199 albertel 297: url += 'mode=$mode&';
1.42 matthew 298: url += 'form=' + formname + '&';
1.135 albertel 299: if (titleelement != null) {
300: url += 'titleelement=' + titleelement + '&';
1.217 albertel 301: } else {
302: url += 'titleelement=&';
303: }
1.42 matthew 304: url += 'element=' + elementname + '';
305: var title = 'Search';
306: var options = 'scrollbars=1,resizable=1,menubar=0';
307: options += ',width=700,height=600';
308: editsearcher = open(url,title,options,'1');
309: editsearcher.focus();
310: }
1.219 albertel 311: // END LON-CAPA Internal -->
1.42 matthew 312: END
1.170 www 313: }
314:
315: sub lastresurl {
1.258 albertel 316: if ($env{'environment.lastresurl'}) {
317: return $env{'environment.lastresurl'}
1.170 www 318: } else {
319: return '/res';
320: }
321: }
322:
323: sub storeresurl {
324: my $resurl=&Apache::lonnet::clutter(shift);
325: unless ($resurl=~/^\/res/) { return 0; }
326: $resurl=~s/\/$//;
327: &Apache::lonnet::put('environment',{'lastresurl' => $resurl});
328: &Apache::lonnet::appenv('environment.lastresurl' => $resurl);
329: return 1;
1.42 matthew 330: }
331:
1.74 www 332: sub studentbrowser_javascript {
1.111 www 333: unless (
1.258 albertel 334: (($env{'request.course.id'}) &&
1.302 albertel 335: (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
336: || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
337: '/'.$env{'request.course.sec'})
338: ))
1.258 albertel 339: || ($env{'request.role'}=~/^(au|dc|su)/)
1.111 www 340: ) { return ''; }
1.74 www 341: return (<<'ENDSTDBRW');
342: <script type="text/javascript" language="Javascript" >
343: var stdeditbrowser;
1.111 www 344: function openstdbrowser(formname,uname,udom,roleflag) {
1.74 www 345: var url = '/adm/pickstudent?';
346: var filter;
347: eval('filter=document.'+formname+'.'+uname+'.value;');
348: if (filter != null) {
349: if (filter != '') {
350: url += 'filter='+filter+'&';
351: }
352: }
353: url += 'form=' + formname + '&unameelement='+uname+
354: '&udomelement='+udom;
1.111 www 355: if (roleflag) { url+="&roles=1"; }
1.102 www 356: var title = 'Student_Browser';
1.74 www 357: var options = 'scrollbars=1,resizable=1,menubar=0';
358: options += ',width=700,height=600';
359: stdeditbrowser = open(url,title,options,'1');
360: stdeditbrowser.focus();
361: }
362: </script>
363: ENDSTDBRW
364: }
1.42 matthew 365:
1.74 www 366: sub selectstudent_link {
1.111 www 367: my ($form,$unameele,$udomele)=@_;
1.258 albertel 368: if ($env{'request.course.id'}) {
1.302 albertel 369: if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
370: && !&Apache::lonnet::allowed('srm',$env{'request.course.id'}.
371: '/'.$env{'request.course.sec'})) {
1.111 www 372: return '';
373: }
374: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
1.119 www 375: '","'.$udomele.'");'."'>".&mt('Select User')."</a>";
1.74 www 376: }
1.258 albertel 377: if ($env{'request.role'}=~/^(au|dc|su)/) {
1.111 www 378: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
1.119 www 379: '","'.$udomele.'",1);'."'>".&mt('Select User')."</a>";
1.111 www 380: }
381: return '';
1.91 www 382: }
383:
384: sub coursebrowser_javascript {
1.234 raeburn 385: my ($domainfilter)=@_;
1.128 albertel 386: return (<<ENDSTDBRW);
1.91 www 387: <script type="text/javascript" language="Javascript" >
388: var stdeditbrowser;
1.293 raeburn 389: function opencrsbrowser(formname,uname,udom,desc,extra_element,multflag) {
1.91 www 390: var url = '/adm/pickcourse?';
391: var filter;
392: if (filter != null) {
393: if (filter != '') {
394: url += 'filter='+filter+'&';
395: }
396: }
1.128 albertel 397: var domainfilter='$domainfilter';
398: if (domainfilter != null) {
399: if (domainfilter != '') {
400: url += 'domainfilter='+domainfilter+'&';
401: }
402: }
1.91 www 403: url += 'form=' + formname + '&cnumelement='+uname+
1.187 albertel 404: '&cdomelement='+udom+
405: '&cnameelement='+desc;
1.234 raeburn 406: if (extra_element !=null && extra_element != '' && formname == 'rolechoice') {
407: url += '&roleelement='+extra_element;
408: if (domainfilter == null || domainfilter == '') {
409: url += '&domainfilter='+extra_element;
410: }
1.230 raeburn 411: }
1.293 raeburn 412: if (multflag !=null && multflag != '') {
413: url += '&multiple='+multflag;
414: }
1.102 www 415: var title = 'Course_Browser';
1.91 www 416: var options = 'scrollbars=1,resizable=1,menubar=0';
417: options += ',width=700,height=600';
418: stdeditbrowser = open(url,title,options,'1');
419: stdeditbrowser.focus();
420: }
421: </script>
422: ENDSTDBRW
423: }
424:
425: sub selectcourse_link {
1.293 raeburn 426: my ($form,$unameele,$udomele,$desc,$extra_element,$multflag)=@_;
1.91 www 427: return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele.
1.293 raeburn 428: '","'.$udomele.'","'.$desc.'","'.$extra_element.'","'.$multflag.'");'."'>".&mt('Select Course')."</a>";
1.74 www 429: }
1.42 matthew 430:
1.273 raeburn 431: sub check_uncheck_jscript {
432: my $jscript = <<"ENDSCRT";
433: function checkAll(field) {
434: if (field.length > 0) {
435: for (i = 0; i < field.length; i++) {
436: field[i].checked = true ;
437: }
438: } else {
439: field.checked = true
440: }
441: }
442:
443: function uncheckAll(field) {
444: if (field.length > 0) {
445: for (i = 0; i < field.length; i++) {
446: field[i].checked = false ;
447: } } else {
448: field.checked = false ;
449: }
450: }
451: ENDSCRT
452: return $jscript;
453: }
454:
455:
1.42 matthew 456: =pod
1.36 matthew 457:
1.112 bowersj2 458: =item * linked_select_forms(...)
1.36 matthew 459:
460: linked_select_forms returns a string containing a <script></script> block
461: and html for two <select> menus. The select menus will be linked in that
462: changing the value of the first menu will result in new values being placed
463: in the second menu. The values in the select menu will appear in alphabetical
464: order.
465:
466: linked_select_forms takes the following ordered inputs:
467:
468: =over 4
469:
1.112 bowersj2 470: =item * $formname, the name of the <form> tag
1.36 matthew 471:
1.112 bowersj2 472: =item * $middletext, the text which appears between the <select> tags
1.36 matthew 473:
1.112 bowersj2 474: =item * $firstdefault, the default value for the first menu
1.36 matthew 475:
1.112 bowersj2 476: =item * $firstselectname, the name of the first <select> tag
1.36 matthew 477:
1.112 bowersj2 478: =item * $secondselectname, the name of the second <select> tag
1.36 matthew 479:
1.112 bowersj2 480: =item * $hashref, a reference to a hash containing the data for the menus.
1.36 matthew 481:
1.41 ng 482: =back
483:
1.36 matthew 484: Below is an example of such a hash. Only the 'text', 'default', and
485: 'select2' keys must appear as stated. keys(%menu) are the possible
486: values for the first select menu. The text that coincides with the
1.41 ng 487: first menu value is given in $menu{$choice1}->{'text'}. The values
1.36 matthew 488: and text for the second menu are given in the hash pointed to by
489: $menu{$choice1}->{'select2'}.
490:
1.112 bowersj2 491: my %menu = ( A1 => { text =>"Choice A1" ,
492: default => "B3",
493: select2 => {
494: B1 => "Choice B1",
495: B2 => "Choice B2",
496: B3 => "Choice B3",
497: B4 => "Choice B4"
498: }
499: },
500: A2 => { text =>"Choice A2" ,
501: default => "C2",
502: select2 => {
503: C1 => "Choice C1",
504: C2 => "Choice C2",
505: C3 => "Choice C3"
506: }
507: },
508: A3 => { text =>"Choice A3" ,
509: default => "D6",
510: select2 => {
511: D1 => "Choice D1",
512: D2 => "Choice D2",
513: D3 => "Choice D3",
514: D4 => "Choice D4",
515: D5 => "Choice D5",
516: D6 => "Choice D6",
517: D7 => "Choice D7"
518: }
519: }
520: );
1.36 matthew 521:
522: =cut
523:
524: sub linked_select_forms {
525: my ($formname,
526: $middletext,
527: $firstdefault,
528: $firstselectname,
529: $secondselectname,
530: $hashref
531: ) = @_;
532: my $second = "document.$formname.$secondselectname";
533: my $first = "document.$formname.$firstselectname";
534: # output the javascript to do the changing
535: my $result = '';
1.219 albertel 536: $result.="<script type=\"text/javascript\">\n";
1.36 matthew 537: $result.="var select2data = new Object();\n";
538: $" = '","';
539: my $debug = '';
540: foreach my $s1 (sort(keys(%$hashref))) {
541: $result.="select2data.d_$s1 = new Object();\n";
542: $result.="select2data.d_$s1.def = new String('".
543: $hashref->{$s1}->{'default'}."');\n";
544: $result.="select2data.d_$s1.values = new Array(";
545: my @s2values = sort(keys( %{ $hashref->{$s1}->{'select2'} } ));
546: $result.="\"@s2values\");\n";
547: $result.="select2data.d_$s1.texts = new Array(";
548: my @s2texts;
549: foreach my $value (@s2values) {
550: push @s2texts, $hashref->{$s1}->{'select2'}->{$value};
551: }
552: $result.="\"@s2texts\");\n";
553: }
554: $"=' ';
555: $result.= <<"END";
556:
557: function select1_changed() {
558: // Determine new choice
559: var newvalue = "d_" + $first.value;
560: // update select2
561: var values = select2data[newvalue].values;
562: var texts = select2data[newvalue].texts;
563: var select2def = select2data[newvalue].def;
564: var i;
565: // out with the old
566: for (i = 0; i < $second.options.length; i++) {
567: $second.options[i] = null;
568: }
569: // in with the nuclear
570: for (i=0;i<values.length; i++) {
571: $second.options[i] = new Option(values[i]);
1.143 matthew 572: $second.options[i].value = values[i];
1.36 matthew 573: $second.options[i].text = texts[i];
574: if (values[i] == select2def) {
575: $second.options[i].selected = true;
576: }
577: }
578: }
579: </script>
580: END
581: # output the initial values for the selection lists
582: $result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed()\">\n";
583: foreach my $value (sort(keys(%$hashref))) {
584: $result.=" <option value=\"$value\" ";
1.253 albertel 585: $result.=" selected=\"selected\" " if ($value eq $firstdefault);
1.119 www 586: $result.=">".&mt($hashref->{$value}->{'text'})."</option>\n";
1.36 matthew 587: }
588: $result .= "</select>\n";
589: my %select2 = %{$hashref->{$firstdefault}->{'select2'}};
590: $result .= $middletext;
591: $result .= "<select size=\"1\" name=\"$secondselectname\">\n";
592: my $seconddefault = $hashref->{$firstdefault}->{'default'};
593: foreach my $value (sort(keys(%select2))) {
594: $result.=" <option value=\"$value\" ";
1.253 albertel 595: $result.=" selected=\"selected\" " if ($value eq $seconddefault);
1.119 www 596: $result.=">".&mt($select2{$value})."</option>\n";
1.36 matthew 597: }
598: $result .= "</select>\n";
599: # return $debug;
600: return $result;
601: } # end of sub linked_select_forms {
602:
1.45 matthew 603: =pod
1.44 bowersj2 604:
1.112 bowersj2 605: =item * help_open_topic($topic, $text, $stayOnPage, $width, $height)
1.44 bowersj2 606:
1.112 bowersj2 607: Returns a string corresponding to an HTML link to the given help
608: $topic, where $topic corresponds to the name of a .tex file in
609: /home/httpd/html/adm/help/tex, with underscores replaced by
610: spaces.
611:
612: $text will optionally be linked to the same topic, allowing you to
613: link text in addition to the graphic. If you do not want to link
614: text, but wish to specify one of the later parameters, pass an
615: empty string.
616:
617: $stayOnPage is a value that will be interpreted as a boolean. If true,
618: the link will not open a new window. If false, the link will open
619: a new window using Javascript. (Default is false.)
620:
621: $width and $height are optional numerical parameters that will
622: override the width and height of the popped up window, which may
623: be useful for certain help topics with big pictures included.
1.44 bowersj2 624:
625: =cut
626:
627: sub help_open_topic {
1.48 bowersj2 628: my ($topic, $text, $stayOnPage, $width, $height) = @_;
629: $text = "" if (not defined $text);
1.44 bowersj2 630: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 631: if ($env{'browser.interface'} eq 'textual' ||
632: $env{'environment.remote'} eq 'off' ) {
1.79 www 633: $stayOnPage=1;
634: }
1.44 bowersj2 635: $width = 350 if (not defined $width);
636: $height = 400 if (not defined $height);
637: my $filename = $topic;
638: $filename =~ s/ /_/g;
639:
1.48 bowersj2 640: my $template = "";
641: my $link;
1.159 www 642:
643: $topic=~s/\W/\_/g;
1.44 bowersj2 644:
645: if (!$stayOnPage)
646: {
1.72 bowersj2 647: $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
1.44 bowersj2 648: }
649: else
650: {
1.48 bowersj2 651: $link = "/adm/help/${filename}.hlp";
652: }
653:
654: # Add the text
655: if ($text ne "")
656: {
1.77 www 657: $template .=
658: "<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>".
1.78 www 659: "<td bgcolor='#5555FF'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.48 bowersj2 660: }
661:
662: # Add the graphic
1.179 matthew 663: my $title = &mt('Online Help');
1.215 albertel 664: my $helpicon=&lonhttpdurl("/adm/help/gif/smallHelp.gif");
1.48 bowersj2 665: $template .= <<"ENDTEMPLATE";
1.218 albertel 666: <a href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help: $topic)" /></a>
1.44 bowersj2 667: ENDTEMPLATE
1.78 www 668: if ($text ne '') { $template.='</td></tr></table>' };
1.44 bowersj2 669: return $template;
670:
1.106 bowersj2 671: }
672:
673: # This is a quicky function for Latex cheatsheet editing, since it
674: # appears in at least four places
675: sub helpLatexCheatsheet {
676: my $other = shift;
677: my $addOther = '';
678: if ($other) {
679: $addOther = Apache::loncommon::help_open_topic($other, shift,
680: undef, undef, 600) .
681: '</td><td>';
682: }
683: return '<table><tr><td>'.
684: $addOther .
685: &Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols',
686: undef,undef,600)
687: .'</td><td>'.
688: &Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols',
689: undef,undef,600)
690: .'</td></tr></table>';
1.172 www 691: }
692:
1.193 raeburn 693: sub help_open_menu {
694: my ($color,$topic,$component_help,$function,$faq,$bug,$stayOnPage,$width,$height,$text) = @_;
695: $text = "" if (not defined $text);
696: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 697: if ($env{'browser.interface'} eq 'textual' ||
698: $env{'environment.remote'} eq 'off' ) {
1.193 raeburn 699: $stayOnPage=1;
700: }
701: $width = 620 if (not defined $width);
702: $height = 600 if (not defined $height);
703: my $link='';
1.201 raeburn 704: my $title = &mt('Get help');
1.193 raeburn 705: my $origurl = $ENV{'REQUEST_URI'};
1.227 albertel 706: $origurl=~s|^/~|/priv/|;
1.193 raeburn 707: my $timestamp = time;
708: foreach (\$color,\$function,\$topic,\$component_help,\$faq,\$bug,\$origurl) {
709: $$_ = &Apache::lonnet::escape($$_);
710: }
1.195 albertel 711: if (!$stayOnPage) {
1.193 raeburn 712: $link = "javascript:helpMenu('open')";
1.195 albertel 713: } else {
1.193 raeburn 714: $link = "javascript:helpMenu('display')";
715: }
1.198 raeburn 716: my $banner_link = "/adm/helpmenu?page=banner&color=$color&function=$function&topic=$topic&component_help=$component_help&faq=$faq&bug=$bug&origurl=$origurl&stamp=$timestamp&stayonpage=$stayOnPage";
1.193 raeburn 717: my $details_link = "/adm/helpmenu?page=body&color=$color&function=$function&topic=$topic&component_help=$component_help&faq=$faq&bug=$bug&origurl=$origurl&stamp=$timestamp";
1.196 albertel 718: my $template;
719: if ($text ne "") {
720: $template .=
1.265 albertel 721: "<table bgcolor='#CC3300' cellspacing='1' cellpadding='1' border='0'><tr>".
722: "<td bgcolor='#CC6600'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.196 albertel 723: }
1.261 albertel 724: my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
1.215 albertel 725: my $helpicon=&lonhttpdurl("/adm/lonIcons/helpgateway.gif");
1.331 albertel 726: my $start_page =
727: &Apache::loncommon::start_page('Help Menu', undef,
728: {'frameset' => 1,
729: 'js_ready' => 1,
730: 'add_entries' => {
731: 'border' => '0',
732: 'rows' => "105,*",},});
733: my $end_page =
734: &Apache::loncommon::end_page({'frameset' => 1,
735: 'js_ready' => 1,});
736:
1.196 albertel 737: $template .= <<"ENDTEMPLATE";
1.219 albertel 738: <script type="text/javascript">
1.253 albertel 739: // <!-- BEGIN LON-CAPA Internal
740: // <![CDATA[
1.243 raeburn 741: function helpMenu(target) {
742: var caller = this;
743: if (target == 'open') {
744: var newWindow = null;
745: try {
1.262 albertel 746: newWindow = window.open($nothing,"helpmenu","HEIGHT=$height,WIDTH=$width,resizable=yes,scrollbars=yes" )
1.243 raeburn 747: }
748: catch(error) {
749: writeHelp(caller);
750: return;
751: }
752: if (newWindow) {
753: caller = newWindow;
754: }
1.193 raeburn 755: }
1.243 raeburn 756: writeHelp(caller);
757: return;
758: }
759: function writeHelp(caller) {
1.331 albertel 760: caller.document.writeln('$start_page<frame name="bannerframe" src="$banner_link" /><frame name="bodyframe" src="$details_link" /> $end_page')
1.243 raeburn 761: caller.document.close()
762: caller.focus()
1.193 raeburn 763: }
1.253 albertel 764: // ]]>
1.219 albertel 765: // END LON-CAPA Internal -->
1.193 raeburn 766: </script>
1.218 albertel 767: <a href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help Menu)" /></a>
1.193 raeburn 768: ENDTEMPLATE
1.203 albertel 769: if ($component_help) {
770: if (!$text) {
771: $template=&help_open_topic($component_help,undef,$stayOnPage,
772: $width,$height).' '.$template;
773: } else {
774: my $help_text;
775: $help_text=&Apache::lonnet::unescape($topic);
776: $template='<table><tr><td>'.
777: &help_open_topic($component_help,$help_text,$stayOnPage,
778: $width,$height).'</td><td>'.$template.
779: '</td></tr></table>';
780: }
781: }
1.196 albertel 782: if ($text ne '') { $template.='</td></tr></table>' };
1.193 raeburn 783: return $template;
784: }
785:
1.172 www 786: sub help_open_bug {
787: my ($topic, $text, $stayOnPage, $width, $height) = @_;
1.258 albertel 788: unless ($env{'user.adv'}) { return ''; }
1.172 www 789: unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }
790: $text = "" if (not defined $text);
791: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 792: if ($env{'browser.interface'} eq 'textual' ||
793: $env{'environment.remote'} eq 'off' ) {
1.172 www 794: $stayOnPage=1;
795: }
1.184 albertel 796: $width = 600 if (not defined $width);
797: $height = 600 if (not defined $height);
1.172 www 798:
799: $topic=~s/\W+/\+/g;
800: my $link='';
801: my $template='';
802: my $url=$Apache::lonnet::perlvar{'BugzillaHost'}.'enter_bug.cgi?product=LON-CAPA&bug_file_loc='.
803: &Apache::lonnet::escape($ENV{'REQUEST_URI'}).'&component='.$topic;
804: if (!$stayOnPage)
805: {
806: $link = "javascript:void(open('$url', 'Bugzilla', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
807: }
808: else
809: {
810: $link = $url;
811: }
812: # Add the text
813: if ($text ne "")
814: {
815: $template .=
816: "<table bgcolor='#AA3333' cellspacing='1' cellpadding='1' border='0'><tr>".
817: "<td bgcolor='#FF5555'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
818: }
819:
820: # Add the graphic
1.179 matthew 821: my $title = &mt('Report a Bug');
1.215 albertel 822: my $bugicon=&lonhttpdurl("/adm/lonMisc/smallBug.gif");
1.172 www 823: $template .= <<"ENDTEMPLATE";
1.218 albertel 824: <a href="$link" title="$title"><img src="$bugicon" border="0" alt="(Bug: $topic)" /></a>
1.172 www 825: ENDTEMPLATE
826: if ($text ne '') { $template.='</td></tr></table>' };
827: return $template;
828:
829: }
830:
831: sub help_open_faq {
832: my ($topic, $text, $stayOnPage, $width, $height) = @_;
1.258 albertel 833: unless ($env{'user.adv'}) { return ''; }
1.172 www 834: unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }
835: $text = "" if (not defined $text);
836: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 837: if ($env{'browser.interface'} eq 'textual' ||
838: $env{'environment.remote'} eq 'off' ) {
1.172 www 839: $stayOnPage=1;
840: }
841: $width = 350 if (not defined $width);
842: $height = 400 if (not defined $height);
843:
844: $topic=~s/\W+/\+/g;
845: my $link='';
846: my $template='';
847: my $url=$Apache::lonnet::perlvar{'FAQHost'}.'/fom/cache/'.$topic.'.html';
848: if (!$stayOnPage)
849: {
850: $link = "javascript:void(open('$url', 'FAQ-O-Matic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
851: }
852: else
853: {
854: $link = $url;
855: }
856:
857: # Add the text
858: if ($text ne "")
859: {
860: $template .=
1.173 www 861: "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
862: "<td bgcolor='#448844'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.172 www 863: }
864:
865: # Add the graphic
1.179 matthew 866: my $title = &mt('View the FAQ');
1.215 albertel 867: my $faqicon=&lonhttpdurl("/adm/lonMisc/smallFAQ.gif");
1.172 www 868: $template .= <<"ENDTEMPLATE";
1.218 albertel 869: <a href="$link" title="$title"><img src="$faqicon" border="0" alt="(FAQ: $topic)" /></a>
1.172 www 870: ENDTEMPLATE
871: if ($text ne '') { $template.='</td></tr></table>' };
872: return $template;
873:
1.44 bowersj2 874: }
1.37 matthew 875:
1.180 matthew 876: ###############################################################
877: ###############################################################
878:
1.45 matthew 879: =pod
880:
1.256 matthew 881: =item * change_content_javascript():
882:
883: This and the next function allow you to create small sections of an
884: otherwise static HTML page that you can update on the fly with
885: Javascript, even in Netscape 4.
886:
887: The Javascript fragment returned by this function (no E<lt>scriptE<gt> tag)
888: must be written to the HTML page once. It will prove the Javascript
889: function "change(name, content)". Calling the change function with the
890: name of the section
891: you want to update, matching the name passed to C<changable_area>, and
892: the new content you want to put in there, will put the content into
893: that area.
894:
895: B<Note>: Netscape 4 only reserves enough space for the changable area
896: to contain room for the original contents. You need to "make space"
897: for whatever changes you wish to make, and be B<sure> to check your
898: code in Netscape 4. This feature in Netscape 4 is B<not> powerful;
899: it's adequate for updating a one-line status display, but little more.
900: This script will set the space to 100% width, so you only need to
901: worry about height in Netscape 4.
902:
903: Modern browsers are much less limiting, and if you can commit to the
904: user not using Netscape 4, this feature may be used freely with
905: pretty much any HTML.
906:
907: =cut
908:
909: sub change_content_javascript {
910: # If we're on Netscape 4, we need to use Layer-based code
1.258 albertel 911: if ($env{'browser.type'} eq 'netscape' &&
912: $env{'browser.version'} =~ /^4\./) {
1.256 matthew 913: return (<<NETSCAPE4);
914: function change(name, content) {
915: doc = document.layers[name+"___escape"].layers[0].document;
916: doc.open();
917: doc.write(content);
918: doc.close();
919: }
920: NETSCAPE4
921: } else {
922: # Otherwise, we need to use semi-standards-compliant code
923: # (technically, "innerHTML" isn't standard but the equivalent
924: # is really scary, and every useful browser supports it
925: return (<<DOMBASED);
926: function change(name, content) {
927: element = document.getElementById(name);
928: element.innerHTML = content;
929: }
930: DOMBASED
931: }
932: }
933:
934: =pod
935:
936: =item * changable_area($name, $origContent):
937:
938: This provides a "changable area" that can be modified on the fly via
939: the Javascript code provided in C<change_content_javascript>. $name is
940: the name you will use to reference the area later; do not repeat the
941: same name on a given HTML page more then once. $origContent is what
942: the area will originally contain, which can be left blank.
943:
944: =cut
945:
946: sub changable_area {
947: my ($name, $origContent) = @_;
948:
1.258 albertel 949: if ($env{'browser.type'} eq 'netscape' &&
950: $env{'browser.version'} =~ /^4\./) {
1.256 matthew 951: # If this is netscape 4, we need to use the Layer tag
952: return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>";
953: } else {
954: return "<span id='$name'>$origContent</span>";
955: }
956: }
957:
958: =pod
959:
960: =back
961:
962: =head1 Excel and CSV file utility routines
963:
964: =over 4
965:
966: =cut
967:
968: ###############################################################
969: ###############################################################
970:
971: =pod
972:
1.112 bowersj2 973: =item * csv_translate($text)
1.37 matthew 974:
1.185 www 975: Translate $text to allow it to be output as a 'comma separated values'
1.37 matthew 976: format.
977:
978: =cut
979:
1.180 matthew 980: ###############################################################
981: ###############################################################
1.37 matthew 982: sub csv_translate {
983: my $text = shift;
984: $text =~ s/\"/\"\"/g;
1.209 albertel 985: $text =~ s/\n/ /g;
1.37 matthew 986: return $text;
987: }
1.180 matthew 988:
989: ###############################################################
990: ###############################################################
991:
992: =pod
993:
994: =item * define_excel_formats
995:
996: Define some commonly used Excel cell formats.
997:
998: Currently supported formats:
999:
1000: =over 4
1001:
1002: =item header
1003:
1004: =item bold
1005:
1006: =item h1
1007:
1008: =item h2
1009:
1010: =item h3
1011:
1.256 matthew 1012: =item h4
1013:
1014: =item i
1015:
1.180 matthew 1016: =item date
1017:
1018: =back
1019:
1020: Inputs: $workbook
1021:
1022: Returns: $format, a hash reference.
1023:
1024: =cut
1025:
1026: ###############################################################
1027: ###############################################################
1028: sub define_excel_formats {
1029: my ($workbook) = @_;
1030: my $format;
1031: $format->{'header'} = $workbook->add_format(bold => 1,
1032: bottom => 1,
1033: align => 'center');
1034: $format->{'bold'} = $workbook->add_format(bold=>1);
1035: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
1036: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
1037: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
1.255 matthew 1038: $format->{'h4'} = $workbook->add_format(bold=>1, size=>12);
1.246 matthew 1039: $format->{'i'} = $workbook->add_format(italic=>1);
1.180 matthew 1040: $format->{'date'} = $workbook->add_format(num_format=>
1.207 matthew 1041: 'mm/dd/yyyy hh:mm:ss');
1.180 matthew 1042: return $format;
1043: }
1044:
1045: ###############################################################
1046: ###############################################################
1.113 bowersj2 1047:
1048: =pod
1049:
1.256 matthew 1050: =item * create_workbook
1.255 matthew 1051:
1052: Create an Excel worksheet. If it fails, output message on the
1053: request object and return undefs.
1054:
1055: Inputs: Apache request object
1056:
1057: Returns (undef) on failure,
1058: Excel worksheet object, scalar with filename, and formats
1059: from &Apache::loncommon::define_excel_formats on success
1060:
1061: =cut
1062:
1063: ###############################################################
1064: ###############################################################
1065: sub create_workbook {
1066: my ($r) = @_;
1067: #
1068: # Create the excel spreadsheet
1069: my $filename = '/prtspool/'.
1.258 albertel 1070: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1.255 matthew 1071: time.'_'.rand(1000000000).'.xls';
1072: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1073: if (! defined($workbook)) {
1074: $r->log_error("Error creating excel spreadsheet $filename: $!");
1075: $r->print('<p>'.&mt("Unable to create new Excel file. ".
1076: "This error has been logged. ".
1077: "Please alert your LON-CAPA administrator").
1078: '</p>');
1079: return (undef);
1080: }
1081: #
1082: $workbook->set_tempdir('/home/httpd/perl/tmp');
1083: #
1084: my $format = &Apache::loncommon::define_excel_formats($workbook);
1085: return ($workbook,$filename,$format);
1086: }
1087:
1088: ###############################################################
1089: ###############################################################
1090:
1091: =pod
1092:
1.256 matthew 1093: =item * create_text_file
1.113 bowersj2 1094:
1.256 matthew 1095: Create a file to write to and eventually make available to the usre.
1096: If file creation fails, outputs an error message on the request object and
1097: return undefs.
1.113 bowersj2 1098:
1.256 matthew 1099: Inputs: Apache request object, and file suffix
1.113 bowersj2 1100:
1.256 matthew 1101: Returns (undef) on failure,
1102: Filehandle and filename on success.
1.113 bowersj2 1103:
1104: =cut
1105:
1.256 matthew 1106: ###############################################################
1107: ###############################################################
1108: sub create_text_file {
1109: my ($r,$suffix) = @_;
1110: if (! defined($suffix)) { $suffix = 'txt'; };
1111: my $fh;
1112: my $filename = '/prtspool/'.
1.258 albertel 1113: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1.256 matthew 1114: time.'_'.rand(1000000000).'.'.$suffix;
1115: $fh = Apache::File->new('>/home/httpd'.$filename);
1116: if (! defined($fh)) {
1117: $r->log_error("Couldn't open $filename for output $!");
1118: $r->print("Problems occured in creating the output file. ".
1119: "This error has been logged. ".
1120: "Please alert your LON-CAPA administrator.");
1.113 bowersj2 1121: }
1.256 matthew 1122: return ($fh,$filename)
1.113 bowersj2 1123: }
1124:
1125:
1.256 matthew 1126: =pod
1.113 bowersj2 1127:
1128: =back
1129:
1130: =cut
1.37 matthew 1131:
1132: ###############################################################
1.33 matthew 1133: ## Home server <option> list generating code ##
1134: ###############################################################
1.35 matthew 1135:
1.45 matthew 1136: =pod
1137:
1.112 bowersj2 1138: =head1 Home Server option list generating code
1139:
1140: =over 4
1141:
1142: =item * get_domains()
1.35 matthew 1143:
1144: Returns an array containing each of the domains listed in the hosts.tab
1145: file.
1146:
1147: =cut
1148:
1149: #-------------------------------------------
1.34 matthew 1150: sub get_domains {
1151: # The code below was stolen from "The Perl Cookbook", p 102, 1st ed.
1152: my @domains;
1153: my %seen;
1154: foreach (sort values(%Apache::lonnet::hostdom)) {
1.169 www 1155: push (@domains,$_) unless $seen{$_}++;
1.34 matthew 1156: }
1157: return @domains;
1158: }
1.88 www 1159:
1.169 www 1160: # ------------------------------------------
1161:
1162: sub domain_select {
1163: my ($name,$value,$multiple)=@_;
1164: my %domains=map {
1165: $_ => $_.' '.$Apache::lonnet::domaindescription{$_}
1166: } &get_domains;
1167: if ($multiple) {
1168: $domains{''}=&mt('Any domain');
1.287 albertel 1169: return &multiple_select_form($name,$value,4,\%domains);
1.169 www 1170: } else {
1171: return &select_form($name,$value,%domains);
1172: }
1173: }
1174:
1.282 albertel 1175: #-------------------------------------------
1176:
1177: =pod
1178:
1.287 albertel 1179: =item * multiple_select_form($name,$value,$size,$hash,$order)
1.282 albertel 1180:
1181: Returns a string containing a <select> element int multiple mode
1182:
1183:
1184: Args:
1185: $name - name of the <select> element
1186: $value - sclara or array ref of values that should already be selected
1187: $size - number of rows long the select element is
1.283 albertel 1188: $hash - the elements should be 'option' => 'shown text'
1.282 albertel 1189: (shown text should already have been &mt())
1.284 albertel 1190: $order - (optional) array ref of the order to show the elments in
1.283 albertel 1191:
1.282 albertel 1192: =cut
1193:
1194: #-------------------------------------------
1.169 www 1195: sub multiple_select_form {
1.284 albertel 1196: my ($name,$value,$size,$hash,$order)=@_;
1.169 www 1197: my %selected = map { $_ => 1 } ref($value)?@{$value}:($value);
1198: my $output='';
1.191 matthew 1199: if (! defined($size)) {
1200: $size = 4;
1.283 albertel 1201: if (scalar(keys(%$hash))<4) {
1202: $size = scalar(keys(%$hash));
1.191 matthew 1203: }
1204: }
1.169 www 1205: $output.="\n<select name='$name' size='$size' multiple='1'>";
1.286 banghart 1206: my @order = ref($order) ? @$order
1.284 albertel 1207: : sort(keys(%$hash));
1208: foreach my $key (@order) {
1209: $output.='<option value="'.$key.'" ';
1210: $output.='selected="selected" ' if ($selected{$key});
1211: $output.='>'.$hash->{$key}."</option>\n";
1.169 www 1212: }
1213: $output.="</select>\n";
1214: return $output;
1215: }
1216:
1.88 www 1217: #-------------------------------------------
1218:
1219: =pod
1220:
1.112 bowersj2 1221: =item * select_form($defdom,$name,%hash)
1.88 www 1222:
1223: Returns a string containing a <select name='$name' size='1'> form to
1224: allow a user to select options from a hash option_name => displayed text.
1225: See lonrights.pm for an example invocation and use.
1226:
1227: =cut
1228:
1229: #-------------------------------------------
1230: sub select_form {
1231: my ($def,$name,%hash) = @_;
1232: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1.128 albertel 1233: my @keys;
1234: if (exists($hash{'select_form_order'})) {
1235: @keys=@{$hash{'select_form_order'}};
1236: } else {
1237: @keys=sort(keys(%hash));
1238: }
1239: foreach (@keys) {
1.88 www 1240: $selectform.="<option value=\"$_\" ".
1.253 albertel 1241: ($_ eq $def ? 'selected="selected" ' : '').
1.119 www 1242: ">".&mt($hash{$_})."</option>\n";
1.88 www 1243: }
1244: $selectform.="</select>";
1245: return $selectform;
1246: }
1247:
1.167 www 1248: sub gradeleveldescription {
1249: my $gradelevel=shift;
1250: my %gradelevels=(0 => 'Not specified',
1251: 1 => 'Grade 1',
1252: 2 => 'Grade 2',
1253: 3 => 'Grade 3',
1254: 4 => 'Grade 4',
1255: 5 => 'Grade 5',
1256: 6 => 'Grade 6',
1257: 7 => 'Grade 7',
1258: 8 => 'Grade 8',
1259: 9 => 'Grade 9',
1260: 10 => 'Grade 10',
1261: 11 => 'Grade 11',
1262: 12 => 'Grade 12',
1263: 13 => 'Grade 13',
1264: 14 => '100 Level',
1265: 15 => '200 Level',
1266: 16 => '300 Level',
1267: 17 => '400 Level',
1268: 18 => 'Graduate Level');
1269: return &mt($gradelevels{$gradelevel});
1270: }
1271:
1.163 www 1272: sub select_level_form {
1273: my ($deflevel,$name)=@_;
1274: unless ($deflevel) { $deflevel=0; }
1.167 www 1275: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1276: for (my $i=0; $i<=18; $i++) {
1277: $selectform.="<option value=\"$i\" ".
1.253 albertel 1278: ($i==$deflevel ? 'selected="selected" ' : '').
1.167 www 1279: ">".&gradeleveldescription($i)."</option>\n";
1280: }
1281: $selectform.="</select>";
1282: return $selectform;
1.163 www 1283: }
1.167 www 1284:
1.35 matthew 1285: #-------------------------------------------
1286:
1.45 matthew 1287: =pod
1288:
1.112 bowersj2 1289: =item * select_dom_form($defdom,$name,$includeempty)
1.35 matthew 1290:
1291: Returns a string containing a <select name='$name' size='1'> form to
1292: allow a user to select the domain to preform an operation in.
1293: See loncreateuser.pm for an example invocation and use.
1294:
1.90 www 1295: If the $includeempty flag is set, it also includes an empty choice ("no domain
1296: selected");
1297:
1.35 matthew 1298: =cut
1299:
1300: #-------------------------------------------
1.34 matthew 1301: sub select_dom_form {
1.90 www 1302: my ($defdom,$name,$includeempty) = @_;
1.34 matthew 1303: my @domains = get_domains();
1.90 www 1304: if ($includeempty) { @domains=('',@domains); }
1.34 matthew 1305: my $selectdomain = "<select name=\"$name\" size=\"1\">\n";
1306: foreach (@domains) {
1307: $selectdomain.="<option value=\"$_\" ".
1.253 albertel 1308: ($_ eq $defdom ? 'selected="selected" ' : '').
1.34 matthew 1309: ">$_</option>\n";
1310: }
1311: $selectdomain.="</select>";
1312: return $selectdomain;
1313: }
1314:
1.35 matthew 1315: #-------------------------------------------
1316:
1.45 matthew 1317: =pod
1318:
1.112 bowersj2 1319: =item * get_library_servers($domain)
1.35 matthew 1320:
1321: Returns a hash which contains keys like '103l3' and values like
1322: 'kirk.lite.msu.edu'. All of the keys will be for machines in the
1323: given $domain.
1324:
1325: =cut
1326:
1327: #-------------------------------------------
1.52 matthew 1328: sub get_library_servers {
1.33 matthew 1329: my $domain = shift;
1.52 matthew 1330: my %library_servers;
1.33 matthew 1331: foreach (keys(%Apache::lonnet::libserv)) {
1332: if ($Apache::lonnet::hostdom{$_} eq $domain) {
1.52 matthew 1333: $library_servers{$_} = $Apache::lonnet::hostname{$_};
1.33 matthew 1334: }
1335: }
1.52 matthew 1336: return %library_servers;
1.33 matthew 1337: }
1338:
1.35 matthew 1339: #-------------------------------------------
1340:
1.45 matthew 1341: =pod
1342:
1.112 bowersj2 1343: =item * home_server_option_list($domain)
1.35 matthew 1344:
1345: returns a string which contains an <option> list to be used in a
1346: <select> form input. See loncreateuser.pm for an example.
1347:
1348: =cut
1349:
1350: #-------------------------------------------
1.33 matthew 1351: sub home_server_option_list {
1352: my $domain = shift;
1.52 matthew 1353: my %servers = &get_library_servers($domain);
1.33 matthew 1354: my $result = '';
1355: foreach (sort keys(%servers)) {
1356: $result.=
1357: '<option value="'.$_.'">'.$_.' '.$servers{$_}."</option>\n";
1358: }
1359: return $result;
1360: }
1.112 bowersj2 1361:
1362: =pod
1363:
1364: =back
1365:
1366: =cut
1.87 matthew 1367:
1368: ###############################################################
1.112 bowersj2 1369: ## Decoding User Agent ##
1.87 matthew 1370: ###############################################################
1371:
1372: =pod
1373:
1.112 bowersj2 1374: =head1 Decoding the User Agent
1375:
1376: =over 4
1377:
1378: =item * &decode_user_agent()
1.87 matthew 1379:
1380: Inputs: $r
1381:
1382: Outputs:
1383:
1384: =over 4
1385:
1.112 bowersj2 1386: =item * $httpbrowser
1.87 matthew 1387:
1.112 bowersj2 1388: =item * $clientbrowser
1.87 matthew 1389:
1.112 bowersj2 1390: =item * $clientversion
1.87 matthew 1391:
1.112 bowersj2 1392: =item * $clientmathml
1.87 matthew 1393:
1.112 bowersj2 1394: =item * $clientunicode
1.87 matthew 1395:
1.112 bowersj2 1396: =item * $clientos
1.87 matthew 1397:
1398: =back
1399:
1.157 matthew 1400: =back
1401:
1.87 matthew 1402: =cut
1403:
1404: ###############################################################
1405: ###############################################################
1406: sub decode_user_agent {
1.247 albertel 1407: my ($r)=@_;
1.87 matthew 1408: my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});
1409: my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});
1410: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
1.247 albertel 1411: if (!$httpbrowser && $r) { $httpbrowser=$r->header_in('User-Agent'); }
1.87 matthew 1412: my $clientbrowser='unknown';
1413: my $clientversion='0';
1414: my $clientmathml='';
1415: my $clientunicode='0';
1416: for (my $i=0;$i<=$#browsertype;$i++) {
1417: my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
1418: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
1419: $clientbrowser=$bname;
1420: $httpbrowser=~/$vreg/i;
1421: $clientversion=$1;
1422: $clientmathml=($clientversion>=$minv);
1423: $clientunicode=($clientversion>=$univ);
1424: }
1425: }
1426: my $clientos='unknown';
1427: if (($httpbrowser=~/linux/i) ||
1428: ($httpbrowser=~/unix/i) ||
1429: ($httpbrowser=~/ux/i) ||
1430: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
1431: if (($httpbrowser=~/vax/i) ||
1432: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
1433: if ($httpbrowser=~/next/i) { $clientos='next'; }
1434: if (($httpbrowser=~/mac/i) ||
1435: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
1436: if ($httpbrowser=~/win/i) { $clientos='win'; }
1437: if ($httpbrowser=~/embed/i) { $clientos='pda'; }
1438: return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
1439: $clientunicode,$clientos,);
1440: }
1441:
1.32 matthew 1442: ###############################################################
1443: ## Authentication changing form generation subroutines ##
1444: ###############################################################
1445: ##
1446: ## All of the authform_xxxxxxx subroutines take their inputs in a
1447: ## hash, and have reasonable default values.
1448: ##
1449: ## formname = the name given in the <form> tag.
1.35 matthew 1450: #-------------------------------------------
1451:
1.45 matthew 1452: =pod
1453:
1.112 bowersj2 1454: =head1 Authentication Routines
1455:
1456: =over 4
1457:
1458: =item * authform_xxxxxx
1.35 matthew 1459:
1460: The authform_xxxxxx subroutines provide javascript and html forms which
1461: handle some of the conveniences required for authentication forms.
1462: This is not an optimal method, but it works.
1463:
1464: See loncreateuser.pm for invocation and use examples.
1465:
1466: =over 4
1467:
1.112 bowersj2 1468: =item * authform_header
1.35 matthew 1469:
1.112 bowersj2 1470: =item * authform_authorwarning
1.35 matthew 1471:
1.112 bowersj2 1472: =item * authform_nochange
1.35 matthew 1473:
1.112 bowersj2 1474: =item * authform_kerberos
1.35 matthew 1475:
1.112 bowersj2 1476: =item * authform_internal
1.35 matthew 1477:
1.112 bowersj2 1478: =item * authform_filesystem
1.35 matthew 1479:
1480: =back
1481:
1.157 matthew 1482: =back
1483:
1.35 matthew 1484: =cut
1485:
1486: #-------------------------------------------
1.32 matthew 1487: sub authform_header{
1488: my %in = (
1489: formname => 'cu',
1.80 albertel 1490: kerb_def_dom => '',
1.32 matthew 1491: @_,
1492: );
1493: $in{'formname'} = 'document.' . $in{'formname'};
1494: my $result='';
1.80 albertel 1495:
1496: #---------------------------------------------- Code for upper case translation
1497: my $Javascript_toUpperCase;
1498: unless ($in{kerb_def_dom}) {
1499: $Javascript_toUpperCase =<<"END";
1500: switch (choice) {
1501: case 'krb': currentform.elements[choicearg].value =
1502: currentform.elements[choicearg].value.toUpperCase();
1503: break;
1504: default:
1505: }
1506: END
1507: } else {
1508: $Javascript_toUpperCase = "";
1509: }
1510:
1.165 raeburn 1511: my $radioval = "'nochange'";
1.174 matthew 1512: if (exists($in{'curr_authtype'}) &&
1513: defined($in{'curr_authtype'}) &&
1514: $in{'curr_authtype'} ne '') {
1515: $radioval = "'$in{'curr_authtype'}arg'";
1516: }
1.165 raeburn 1517: my $argfield = 'null';
1518: if ( grep/^mode$/,(keys %in) ) {
1519: if ($in{'mode'} eq 'modifycourse') {
1520: if ( grep/^curr_authtype$/,(keys %in) ) {
1521: $radioval = "'$in{'curr_authtype'}'";
1522: }
1523: if ( grep/^curr_autharg$/,(keys %in) ) {
1524: unless ($in{'curr_autharg'} eq '') {
1525: $argfield = "'$in{'curr_autharg'}'";
1526: }
1527: }
1528: }
1529: }
1530:
1.32 matthew 1531: $result.=<<"END";
1532: var current = new Object();
1.165 raeburn 1533: current.radiovalue = $radioval;
1534: current.argfield = $argfield;
1.32 matthew 1535:
1536: function changed_radio(choice,currentform) {
1537: var choicearg = choice + 'arg';
1538: // If a radio button in changed, we need to change the argfield
1539: if (current.radiovalue != choice) {
1540: current.radiovalue = choice;
1541: if (current.argfield != null) {
1542: currentform.elements[current.argfield].value = '';
1543: }
1544: if (choice == 'nochange') {
1545: current.argfield = null;
1546: } else {
1547: current.argfield = choicearg;
1548: switch(choice) {
1549: case 'krb':
1550: currentform.elements[current.argfield].value =
1551: "$in{'kerb_def_dom'}";
1552: break;
1553: default:
1554: break;
1555: }
1556: }
1557: }
1558: return;
1559: }
1.22 www 1560:
1.32 matthew 1561: function changed_text(choice,currentform) {
1562: var choicearg = choice + 'arg';
1563: if (currentform.elements[choicearg].value !='') {
1.80 albertel 1564: $Javascript_toUpperCase
1.32 matthew 1565: // clear old field
1566: if ((current.argfield != choicearg) && (current.argfield != null)) {
1567: currentform.elements[current.argfield].value = '';
1568: }
1569: current.argfield = choicearg;
1570: }
1571: set_auth_radio_buttons(choice,currentform);
1572: return;
1.20 www 1573: }
1.32 matthew 1574:
1575: function set_auth_radio_buttons(newvalue,currentform) {
1576: var i=0;
1577: while (i < currentform.login.length) {
1578: if (currentform.login[i].value == newvalue) { break; }
1579: i++;
1580: }
1581: if (i == currentform.login.length) {
1582: return;
1583: }
1584: current.radiovalue = newvalue;
1585: currentform.login[i].checked = true;
1586: return;
1587: }
1588: END
1589: return $result;
1590: }
1591:
1592: sub authform_authorwarning{
1593: my $result='';
1.144 matthew 1594: $result='<i>'.
1595: &mt('As a general rule, only authors or co-authors should be '.
1596: 'filesystem authenticated '.
1597: '(which allows access to the server filesystem).')."</i>\n";
1.32 matthew 1598: return $result;
1599: }
1600:
1601: sub authform_nochange{
1602: my %in = (
1603: formname => 'document.cu',
1604: kerb_def_dom => 'MSU.EDU',
1605: @_,
1606: );
1.281 albertel 1607: my $result = '<label>'.&mt('[_1] Do not change login data',
1.144 matthew 1608: '<input type="radio" name="login" value="nochange" '.
1609: 'checked="checked" onclick="'.
1.281 albertel 1610: "javascript:changed_radio('nochange',$in{'formname'});".'" />').
1611: '</label>';
1.32 matthew 1612: return $result;
1613: }
1614:
1615: sub authform_kerberos{
1616: my %in = (
1617: formname => 'document.cu',
1618: kerb_def_dom => 'MSU.EDU',
1.80 albertel 1619: kerb_def_auth => 'krb4',
1.32 matthew 1620: @_,
1621: );
1.165 raeburn 1622: my ($check4,$check5,$krbarg);
1.80 albertel 1623: if ($in{'kerb_def_auth'} eq 'krb5') {
1624: $check5 = " checked=\"on\"";
1625: } else {
1626: $check4 = " checked=\"on\"";
1627: }
1.165 raeburn 1628: $krbarg = $in{'kerb_def_dom'};
1629:
1630: my $krbcheck = "";
1631: if ( grep/^curr_authtype$/,(keys %in) ) {
1632: if ($in{'curr_authtype'} =~ m/^krb/) {
1633: $krbcheck = " checked=\"on\"";
1634: if ( grep/^curr_autharg$/,(keys %in) ) {
1635: $krbarg = $in{'curr_autharg'};
1636: }
1637: }
1638: }
1639:
1.144 matthew 1640: my $jscall = "javascript:changed_radio('krb',$in{'formname'});";
1641: my $result .= &mt
1642: ('[_1] Kerberos authenticated with domain [_2] '.
1.281 albertel 1643: '[_3] Version 4 [_4] Version 5 [_5]',
1644: '<label><input type="radio" name="login" value="krb" '.
1.165 raeburn 1645: 'onclick="'.$jscall.'" onchange="'.$jscall.'"'.$krbcheck.' />',
1.281 albertel 1646: '</label><input type="text" size="10" name="krbarg" '.
1.165 raeburn 1647: 'value="'.$krbarg.'" '.
1.144 matthew 1648: 'onchange="'.$jscall.'" />',
1.281 albertel 1649: '<label><input type="radio" name="krbver" value="4" '.$check4.' />',
1650: '</label><label><input type="radio" name="krbver" value="5" '.$check5.' />',
1651: '</label>');
1.32 matthew 1652: return $result;
1653: }
1654:
1655: sub authform_internal{
1656: my %args = (
1657: formname => 'document.cu',
1658: kerb_def_dom => 'MSU.EDU',
1659: @_,
1660: );
1.165 raeburn 1661:
1662: my $intcheck = "";
1663: my $intarg = 'value=""';
1664: if ( grep/^curr_authtype$/,(keys %args) ) {
1665: if ($args{'curr_authtype'} eq 'int') {
1666: $intcheck = " checked=\"on\"";
1667: if ( grep/^curr_autharg$/,(keys %args) ) {
1668: $intarg = "value=\"$args{'curr_autharg'}\"";
1669: }
1670: }
1671: }
1672:
1.144 matthew 1673: my $jscall = "javascript:changed_radio('int',$args{'formname'});";
1674: my $result.=&mt
1675: ('[_1] Internally authenticated (with initial password [_2])',
1.281 albertel 1676: '<label><input type="radio" name="login" value="int" '.$intcheck.
1.165 raeburn 1677: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1.281 albertel 1678: '</label><input type="text" size="10" name="intarg" '.$intarg.
1.165 raeburn 1679: ' onchange="'.$jscall.'" />');
1.32 matthew 1680: return $result;
1681: }
1682:
1683: sub authform_local{
1684: my %in = (
1685: formname => 'document.cu',
1686: kerb_def_dom => 'MSU.EDU',
1687: @_,
1688: );
1.165 raeburn 1689:
1690: my $loccheck = "";
1691: my $locarg = 'value=""';
1692: if ( grep/^curr_authtype$/,(keys %in) ) {
1693: if ($in{'curr_authtype'} eq 'loc') {
1694: $loccheck = " checked=\"on\"";
1695: if ( grep/^curr_autharg$/,(keys %in) ) {
1696: $locarg = "value=\"$in{'curr_autharg'}\"";
1697: }
1698: }
1699: }
1700:
1.144 matthew 1701: my $jscall = "javascript:changed_radio('loc',$in{'formname'});";
1.160 matthew 1702: my $result.=&mt('[_1] Local Authentication with argument [_2]',
1.281 albertel 1703: '<label><input type="radio" name="login" value="loc" '.$loccheck.
1.165 raeburn 1704: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1.281 albertel 1705: '</label><input type="text" size="10" name="locarg" '.$locarg.
1.165 raeburn 1706: ' onchange="'.$jscall.'" />');
1.32 matthew 1707: return $result;
1708: }
1709:
1710: sub authform_filesystem{
1711: my %in = (
1712: formname => 'document.cu',
1713: kerb_def_dom => 'MSU.EDU',
1714: @_,
1715: );
1.144 matthew 1716: my $jscall = "javascript:changed_radio('fsys',$in{'formname'});";
1717: my $result.= &mt
1718: ('[_1] Filesystem Authenticated (with initial password [_2])',
1.281 albertel 1719: '<label><input type="radio" name="login" value="fsys" '.
1.144 matthew 1720: 'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1.281 albertel 1721: '</label><input type="text" size="10" name="fsysarg" value="" '.
1.144 matthew 1722: 'onchange="'.$jscall.'" />');
1.32 matthew 1723: return $result;
1724: }
1725:
1.80 albertel 1726: ###############################################################
1727: ## Get Authentication Defaults for Domain ##
1728: ###############################################################
1729:
1730: =pod
1731:
1.112 bowersj2 1732: =head1 Domains and Authentication
1733:
1734: Returns default authentication type and an associated argument as
1735: listed in file 'domain.tab'.
1736:
1737: =over 4
1738:
1739: =item * get_auth_defaults
1.80 albertel 1740:
1741: get_auth_defaults($target_domain) returns the default authentication
1742: type and an associated argument (initial password or a kerberos domain).
1743: These values are stored in lonTabs/domain.tab
1744:
1745: ($def_auth, $def_arg) = &get_auth_defaults($target_domain);
1746:
1747: If target_domain is not found in domain.tab, returns nothing ('').
1748:
1749: =cut
1750:
1751: #-------------------------------------------
1752: sub get_auth_defaults {
1753: my $domain=shift;
1754: return ($Apache::lonnet::domain_auth_def{$domain},$Apache::lonnet::domain_auth_arg_def{$domain});
1755: }
1756: ###############################################################
1757: ## End Get Authentication Defaults for Domain ##
1758: ###############################################################
1759:
1760: ###############################################################
1761: ## Get Kerberos Defaults for Domain ##
1762: ###############################################################
1763: ##
1764: ## Returns default kerberos version and an associated argument
1765: ## as listed in file domain.tab. If not listed, provides
1766: ## appropriate default domain and kerberos version.
1767: ##
1768: #-------------------------------------------
1769:
1770: =pod
1771:
1.112 bowersj2 1772: =item * get_kerberos_defaults
1.80 albertel 1773:
1774: get_kerberos_defaults($target_domain) returns the default kerberos
1775: version and domain. If not found in domain.tabs, it defaults to
1776: version 4 and the domain of the server.
1777:
1778: ($def_version, $def_krb_domain) = &get_kerberos_defaults($target_domain);
1779:
1780: =cut
1781:
1782: #-------------------------------------------
1783: sub get_kerberos_defaults {
1784: my $domain=shift;
1785: my ($krbdef,$krbdefdom) =
1786: &Apache::loncommon::get_auth_defaults($domain);
1787: unless ($krbdef =~/^krb/ && $krbdefdom) {
1788: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
1789: my $krbdefdom=$1;
1790: $krbdefdom=~tr/a-z/A-Z/;
1791: $krbdef = "krb4";
1792: }
1793: return ($krbdef,$krbdefdom);
1794: }
1.112 bowersj2 1795:
1796: =pod
1797:
1798: =back
1799:
1800: =cut
1.32 matthew 1801:
1.46 matthew 1802: ###############################################################
1803: ## Thesaurus Functions ##
1804: ###############################################################
1.20 www 1805:
1.46 matthew 1806: =pod
1.20 www 1807:
1.112 bowersj2 1808: =head1 Thesaurus Functions
1809:
1810: =over 4
1811:
1812: =item * initialize_keywords
1.46 matthew 1813:
1814: Initializes the package variable %Keywords if it is empty. Uses the
1815: package variable $thesaurus_db_file.
1816:
1817: =cut
1818:
1819: ###################################################
1820:
1821: sub initialize_keywords {
1822: return 1 if (scalar keys(%Keywords));
1823: # If we are here, %Keywords is empty, so fill it up
1824: # Make sure the file we need exists...
1825: if (! -e $thesaurus_db_file) {
1826: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file".
1827: " failed because it does not exist");
1828: return 0;
1829: }
1830: # Set up the hash as a database
1831: my %thesaurus_db;
1832: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1833: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1834: &Apache::lonnet::logthis("Could not tie \%thesaurus_db to ".
1835: $thesaurus_db_file);
1836: return 0;
1837: }
1838: # Get the average number of appearances of a word.
1839: my $avecount = $thesaurus_db{'average.count'};
1840: # Put keywords (those that appear > average) into %Keywords
1841: while (my ($word,$data)=each (%thesaurus_db)) {
1842: my ($count,undef) = split /:/,$data;
1843: $Keywords{$word}++ if ($count > $avecount);
1844: }
1845: untie %thesaurus_db;
1846: # Remove special values from %Keywords.
1847: foreach ('total.count','average.count') {
1848: delete($Keywords{$_}) if (exists($Keywords{$_}));
1849: }
1850: return 1;
1851: }
1852:
1853: ###################################################
1854:
1855: =pod
1856:
1.112 bowersj2 1857: =item * keyword($word)
1.46 matthew 1858:
1859: Returns true if $word is a keyword. A keyword is a word that appears more
1860: than the average number of times in the thesaurus database. Calls
1861: &initialize_keywords
1862:
1863: =cut
1864:
1865: ###################################################
1.20 www 1866:
1867: sub keyword {
1.46 matthew 1868: return if (!&initialize_keywords());
1869: my $word=lc(shift());
1870: $word=~s/\W//g;
1871: return exists($Keywords{$word});
1.20 www 1872: }
1.46 matthew 1873:
1874: ###############################################################
1875:
1876: =pod
1.20 www 1877:
1.112 bowersj2 1878: =item * get_related_words
1.46 matthew 1879:
1.160 matthew 1880: Look up a word in the thesaurus. Takes a scalar argument and returns
1.46 matthew 1881: an array of words. If the keyword is not in the thesaurus, an empty array
1882: will be returned. The order of the words returned is determined by the
1883: database which holds them.
1884:
1885: Uses global $thesaurus_db_file.
1886:
1887: =cut
1888:
1889: ###############################################################
1890: sub get_related_words {
1891: my $keyword = shift;
1892: my %thesaurus_db;
1893: if (! -e $thesaurus_db_file) {
1894: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file ".
1895: "failed because the file does not exist");
1896: return ();
1897: }
1898: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1899: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1900: return ();
1901: }
1902: my @Words=();
1903: if (exists($thesaurus_db{$keyword})) {
1904: $_ = $thesaurus_db{$keyword};
1905: (undef,@Words) = split/:/; # The first element is the number of times
1906: # the word appears. We do not need it now.
1907: for (my $i=0;$i<=$#Words;$i++) {
1908: ($Words[$i],undef)= split/\,/,$Words[$i];
1.20 www 1909: }
1910: }
1.46 matthew 1911: untie %thesaurus_db;
1912: return @Words;
1.14 harris41 1913: }
1.46 matthew 1914:
1.112 bowersj2 1915: =pod
1916:
1917: =back
1918:
1919: =cut
1.61 www 1920:
1921: # -------------------------------------------------------------- Plaintext name
1.81 albertel 1922: =pod
1923:
1.112 bowersj2 1924: =head1 User Name Functions
1925:
1926: =over 4
1927:
1.226 albertel 1928: =item * plainname($uname,$udom,$first)
1.81 albertel 1929:
1.112 bowersj2 1930: Takes a users logon name and returns it as a string in
1.226 albertel 1931: "first middle last generation" form
1932: if $first is set to 'lastname' then it returns it as
1933: 'lastname generation, firstname middlename' if their is a lastname
1.81 albertel 1934:
1935: =cut
1.61 www 1936:
1.295 www 1937:
1.81 albertel 1938: ###############################################################
1.61 www 1939: sub plainname {
1.226 albertel 1940: my ($uname,$udom,$first)=@_;
1.295 www 1941: my %names=&getnames($uname,$udom);
1.226 albertel 1942: my $name=&Apache::lonnet::format_name($names{'firstname'},
1943: $names{'middlename'},
1944: $names{'lastname'},
1945: $names{'generation'},$first);
1946: $name=~s/^\s+//;
1.62 www 1947: $name=~s/\s+$//;
1948: $name=~s/\s+/ /g;
1.190 albertel 1949: if ($name !~ /\S/) { $name=$uname.'@'.$udom; }
1.62 www 1950: return $name;
1.61 www 1951: }
1.66 www 1952:
1953: # -------------------------------------------------------------------- Nickname
1.81 albertel 1954: =pod
1955:
1.112 bowersj2 1956: =item * nickname($uname,$udom)
1.81 albertel 1957:
1958: Gets a users name and returns it as a string as
1959:
1960: ""nickname""
1.66 www 1961:
1.81 albertel 1962: if the user has a nickname or
1963:
1964: "first middle last generation"
1965:
1966: if the user does not
1967:
1968: =cut
1.66 www 1969:
1970: sub nickname {
1971: my ($uname,$udom)=@_;
1.295 www 1972: my %names=&getnames($uname,$udom);
1.68 albertel 1973: my $name=$names{'nickname'};
1.66 www 1974: if ($name) {
1975: $name='"'.$name.'"';
1976: } else {
1977: $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
1978: $names{'lastname'}.' '.$names{'generation'};
1979: $name=~s/\s+$//;
1980: $name=~s/\s+/ /g;
1981: }
1982: return $name;
1983: }
1984:
1.295 www 1985: sub getnames {
1986: my ($uname,$udom)=@_;
1987: my $id=$uname.':'.$udom;
1988: my ($names,$cached)=&Apache::lonnet::is_cached_new('namescache',$id);
1989: if ($cached) {
1990: return %{$names};
1991: } else {
1992: my %loadnames=&Apache::lonnet::get('environment',
1993: ['firstname','middlename','lastname','generation','nickname'],
1994: $udom,$uname);
1995: &Apache::lonnet::do_cache_new('namescache',$id,\%loadnames);
1996: return %loadnames;
1997: }
1998: }
1.61 www 1999:
2000: # ------------------------------------------------------------------ Screenname
1.81 albertel 2001:
2002: =pod
2003:
1.112 bowersj2 2004: =item * screenname($uname,$udom)
1.81 albertel 2005:
2006: Gets a users screenname and returns it as a string
2007:
2008: =cut
1.61 www 2009:
2010: sub screenname {
2011: my ($uname,$udom)=@_;
1.258 albertel 2012: if ($uname eq $env{'user.name'} &&
2013: $udom eq $env{'user.domain'}) {return $env{'environment.screenname'};}
1.212 albertel 2014: my %names=&Apache::lonnet::get('environment',['screenname'],$udom,$uname);
1.68 albertel 2015: return $names{'screenname'};
1.62 www 2016: }
2017:
1.212 albertel 2018:
1.62 www 2019: # ------------------------------------------------------------- Message Wrapper
2020:
2021: sub messagewrapper {
1.200 matthew 2022: my ($link,$username,$domain)=@_;
1.62 www 2023: return
1.200 matthew 2024: '<a href="/adm/email?compose=individual&'.
2025: 'recname='.$username.'&recdom='.$domain.'" '.
2026: 'title="'.&mt('Send message').'">'.$link.'</a>';
1.74 www 2027: }
2028: # --------------------------------------------------------------- Notes Wrapper
2029:
2030: sub noteswrapper {
2031: my ($link,$un,$do)=@_;
2032: return
2033: "<a href='/adm/email?recordftf=retrieve&recname=$un&recdom=$do'>$link</a>";
1.62 www 2034: }
2035: # ------------------------------------------------------------- Aboutme Wrapper
2036:
2037: sub aboutmewrapper {
1.166 www 2038: my ($link,$username,$domain,$target)=@_;
1.205 www 2039: return '<a href="/adm/'.$domain.'/'.$username.'/aboutme"'.
1.200 matthew 2040: ($target?' target="$target"':'').' title="'.&mt('View this users personal page').'">'.$link.'</a>';
1.62 www 2041: }
2042:
2043: # ------------------------------------------------------------ Syllabus Wrapper
2044:
2045:
2046: sub syllabuswrapper {
1.109 matthew 2047: my ($linktext,$coursedir,$domain,$fontcolor)=@_;
2048: if ($fontcolor) {
2049: $linktext='<font color="'.$fontcolor.'">'.$linktext.'</font>';
2050: }
1.208 matthew 2051: return qq{<a href="/public/$domain/$coursedir/syllabus">$linktext</a>};
1.61 www 2052: }
1.14 harris41 2053:
1.208 matthew 2054: sub track_student_link {
1.268 albertel 2055: my ($linktext,$sname,$sdom,$target,$start) = @_;
2056: my $link ="/adm/trackstudent?";
1.208 matthew 2057: my $title = 'View recent activity';
2058: if (defined($sname) && $sname !~ /^\s*$/ &&
2059: defined($sdom) && $sdom !~ /^\s*$/) {
1.268 albertel 2060: $link .= "selected_student=$sname:$sdom";
1.208 matthew 2061: $title .= ' of this student';
1.268 albertel 2062: }
1.208 matthew 2063: if (defined($target) && $target !~ /^\s*$/) {
2064: $target = qq{target="$target"};
2065: } else {
2066: $target = '';
2067: }
1.268 albertel 2068: if ($start) { $link.='&start='.$start; }
1.208 matthew 2069: return qq{<a href="$link" title="$title" $target>$linktext</a>};
2070: }
2071:
1.112 bowersj2 2072: =pod
2073:
2074: =back
2075:
2076: =head1 Access .tab File Data
2077:
2078: =over 4
2079:
2080: =item * languageids()
2081:
2082: returns list of all language ids
2083:
2084: =cut
2085:
1.14 harris41 2086: sub languageids {
1.16 harris41 2087: return sort(keys(%language));
1.14 harris41 2088: }
2089:
1.112 bowersj2 2090: =pod
2091:
2092: =item * languagedescription()
2093:
2094: returns description of a specified language id
2095:
2096: =cut
2097:
1.14 harris41 2098: sub languagedescription {
1.125 www 2099: my $code=shift;
2100: return ($supported_language{$code}?'* ':'').
2101: $language{$code}.
1.126 www 2102: ($supported_language{$code}?' ('.&mt('interface available').')':'');
1.145 www 2103: }
2104:
2105: sub plainlanguagedescription {
2106: my $code=shift;
2107: return $language{$code};
2108: }
2109:
2110: sub supportedlanguagecode {
2111: my $code=shift;
2112: return $supported_language{$code};
1.97 www 2113: }
2114:
1.112 bowersj2 2115: =pod
2116:
2117: =item * copyrightids()
2118:
2119: returns list of all copyrights
2120:
2121: =cut
2122:
2123: sub copyrightids {
2124: return sort(keys(%cprtag));
2125: }
2126:
2127: =pod
2128:
2129: =item * copyrightdescription()
2130:
2131: returns description of a specified copyright id
2132:
2133: =cut
2134:
2135: sub copyrightdescription {
1.166 www 2136: return &mt($cprtag{shift(@_)});
1.112 bowersj2 2137: }
1.197 matthew 2138:
2139: =pod
2140:
1.192 taceyjo1 2141: =item * source_copyrightids()
2142:
2143: returns list of all source copyrights
2144:
2145: =cut
2146:
2147: sub source_copyrightids {
2148: return sort(keys(%scprtag));
2149: }
2150:
2151: =pod
2152:
2153: =item * source_copyrightdescription()
2154:
2155: returns description of a specified source copyright id
2156:
2157: =cut
2158:
2159: sub source_copyrightdescription {
2160: return &mt($scprtag{shift(@_)});
2161: }
1.112 bowersj2 2162:
2163: =pod
2164:
2165: =item * filecategories()
2166:
2167: returns list of all file categories
2168:
2169: =cut
2170:
2171: sub filecategories {
2172: return sort(keys(%category_extensions));
2173: }
2174:
2175: =pod
2176:
2177: =item * filecategorytypes()
2178:
2179: returns list of file types belonging to a given file
2180: category
2181:
2182: =cut
2183:
2184: sub filecategorytypes {
2185: return @{$category_extensions{lc($_[0])}};
2186: }
2187:
2188: =pod
2189:
2190: =item * fileembstyle()
2191:
2192: returns embedding style for a specified file type
2193:
2194: =cut
2195:
2196: sub fileembstyle {
2197: return $fe{lc(shift(@_))};
1.169 www 2198: }
2199:
2200:
2201: sub filecategoryselect {
2202: my ($name,$value)=@_;
1.189 matthew 2203: return &select_form($value,$name,
1.169 www 2204: '' => &mt('Any category'),
2205: map { $_,$_ } sort(keys(%category_extensions)));
1.112 bowersj2 2206: }
2207:
2208: =pod
2209:
2210: =item * filedescription()
2211:
2212: returns description for a specified file type
2213:
2214: =cut
2215:
2216: sub filedescription {
1.188 matthew 2217: my $file_description = $fd{lc(shift())};
2218: $file_description =~ s:([\[\]]):~$1:g;
2219: return &mt($file_description);
1.112 bowersj2 2220: }
2221:
2222: =pod
2223:
2224: =item * filedescriptionex()
2225:
2226: returns description for a specified file type with
2227: extra formatting
2228:
2229: =cut
2230:
2231: sub filedescriptionex {
2232: my $ex=shift;
1.188 matthew 2233: my $file_description = $fd{lc($ex)};
2234: $file_description =~ s:([\[\]]):~$1:g;
2235: return '.'.$ex.' '.&mt($file_description);
1.112 bowersj2 2236: }
2237:
2238: # End of .tab access
2239: =pod
2240:
2241: =back
2242:
2243: =cut
2244:
2245: # ------------------------------------------------------------------ File Types
2246: sub fileextensions {
2247: return sort(keys(%fe));
2248: }
2249:
1.97 www 2250: # ----------------------------------------------------------- Display Languages
2251: # returns a hash with all desired display languages
2252: #
2253:
2254: sub display_languages {
2255: my %languages=();
1.118 www 2256: foreach (&preferred_languages()) {
2257: $languages{$_}=1;
1.97 www 2258: }
2259: &get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']);
1.258 albertel 2260: if ($env{'form.displaylanguage'}) {
2261: foreach (split(/\s*(\,|\;|\:)\s*/,$env{'form.displaylanguage'})) {
1.97 www 2262: $languages{$_}=1;
2263: }
2264: }
2265: return %languages;
1.14 harris41 2266: }
2267:
1.117 www 2268: sub preferred_languages {
2269: my @languages=();
1.258 albertel 2270: if ($env{'course.'.$env{'request.course.id'}.'.languages'}) {
1.117 www 2271: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,
1.258 albertel 2272: $env{'course.'.$env{'request.course.id'}.'.languages'}));
1.177 www 2273: }
1.258 albertel 2274: if ($env{'environment.languages'}) {
2275: @languages=split(/\s*(\,|\;|\:)\s*/,$env{'environment.languages'});
1.118 www 2276: }
1.162 www 2277: my $browser=(split(/\;/,$ENV{'HTTP_ACCEPT_LANGUAGE'}))[0];
2278: if ($browser) {
2279: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$browser));
2280: }
1.258 albertel 2281: if ($Apache::lonnet::domain_lang_def{$env{'user.domain'}}) {
1.118 www 2282: @languages=(@languages,
1.258 albertel 2283: $Apache::lonnet::domain_lang_def{$env{'user.domain'}});
1.118 www 2284: }
1.258 albertel 2285: if ($Apache::lonnet::domain_lang_def{$env{'request.role.domain'}}) {
1.118 www 2286: @languages=(@languages,
1.258 albertel 2287: $Apache::lonnet::domain_lang_def{$env{'request.role.domain'}});
1.118 www 2288: }
2289: if ($Apache::lonnet::domain_lang_def{
2290: $Apache::lonnet::perlvar{'lonDefDomain'}}) {
2291: @languages=(@languages,
2292: $Apache::lonnet::domain_lang_def{
2293: $Apache::lonnet::perlvar{'lonDefDomain'}});
2294: }
2295: # turn "en-ca" into "en-ca,en"
2296: my @genlanguages;
2297: foreach (@languages) {
2298: unless ($_=~/\w/) { next; }
2299: push (@genlanguages,$_);
2300: if ($_=~/(\-|\_)/) {
2301: push (@genlanguages,(split(/(\-|\_)/,$_))[0]);
2302: }
2303: }
2304: return @genlanguages;
1.117 www 2305: }
2306:
1.112 bowersj2 2307: ###############################################################
2308: ## Student Answer Attempts ##
2309: ###############################################################
2310:
2311: =pod
2312:
2313: =head1 Alternate Problem Views
2314:
2315: =over 4
2316:
2317: =item * get_previous_attempt($symb, $username, $domain, $course,
2318: $getattempt, $regexp, $gradesub)
2319:
2320: Return string with previous attempt on problem. Arguments:
2321:
2322: =over 4
2323:
2324: =item * $symb: Problem, including path
2325:
2326: =item * $username: username of the desired student
2327:
2328: =item * $domain: domain of the desired student
1.14 harris41 2329:
1.112 bowersj2 2330: =item * $course: Course ID
1.14 harris41 2331:
1.112 bowersj2 2332: =item * $getattempt: Leave blank for all attempts, otherwise put
2333: something
1.14 harris41 2334:
1.112 bowersj2 2335: =item * $regexp: if string matches this regexp, the string will be
2336: sent to $gradesub
1.14 harris41 2337:
1.112 bowersj2 2338: =item * $gradesub: routine that processes the string if it matches $regexp
1.14 harris41 2339:
1.112 bowersj2 2340: =back
1.14 harris41 2341:
1.112 bowersj2 2342: The output string is a table containing all desired attempts, if any.
1.16 harris41 2343:
1.112 bowersj2 2344: =cut
1.1 albertel 2345:
2346: sub get_previous_attempt {
1.43 ng 2347: my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub)=@_;
1.1 albertel 2348: my $prevattempts='';
1.43 ng 2349: no strict 'refs';
1.1 albertel 2350: if ($symb) {
1.3 albertel 2351: my (%returnhash)=
2352: &Apache::lonnet::restore($symb,$course,$domain,$username);
1.1 albertel 2353: if ($returnhash{'version'}) {
2354: my %lasthash=();
2355: my $version;
2356: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.19 harris41 2357: foreach (sort(split(/\:/,$returnhash{$version.':keys'}))) {
1.1 albertel 2358: $lasthash{$_}=$returnhash{$version.':'.$_};
1.19 harris41 2359: }
1.1 albertel 2360: }
1.43 ng 2361: $prevattempts='<table border="0" width="100%"><tr><td bgcolor="#777777">';
1.40 ng 2362: $prevattempts.='<table border="0" width="100%"><tr bgcolor="#e6ffff"><td>History</td>';
1.16 harris41 2363: foreach (sort(keys %lasthash)) {
1.31 albertel 2364: my ($ign,@parts) = split(/\./,$_);
1.41 ng 2365: if ($#parts > 0) {
1.31 albertel 2366: my $data=$parts[-1];
2367: pop(@parts);
1.40 ng 2368: $prevattempts.='<td>Part '.join('.',@parts).'<br />'.$data.' </td>';
1.31 albertel 2369: } else {
1.41 ng 2370: if ($#parts == 0) {
2371: $prevattempts.='<th>'.$parts[0].'</th>';
2372: } else {
2373: $prevattempts.='<th>'.$ign.'</th>';
2374: }
1.31 albertel 2375: }
1.16 harris41 2376: }
1.40 ng 2377: if ($getattempt eq '') {
2378: for ($version=1;$version<=$returnhash{'version'};$version++) {
2379: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Transaction '.$version.'</td>';
2380: foreach (sort(keys %lasthash)) {
2381: my $value;
2382: if ($_ =~ /timestamp/) {
2383: $value=scalar(localtime($returnhash{$version.':'.$_}));
2384: } else {
2385: $value=$returnhash{$version.':'.$_};
2386: }
1.142 albertel 2387: $prevattempts.='<td>'.&Apache::lonnet::unescape($value).' </td>';
1.40 ng 2388: }
2389: }
1.1 albertel 2390: }
1.40 ng 2391: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Current</td>';
1.16 harris41 2392: foreach (sort(keys %lasthash)) {
1.5 albertel 2393: my $value;
2394: if ($_ =~ /timestamp/) {
2395: $value=scalar(localtime($lasthash{$_}));
2396: } else {
2397: $value=$lasthash{$_};
2398: }
1.142 albertel 2399: $value=&Apache::lonnet::unescape($value);
1.49 ng 2400: if ($_ =~/$regexp$/ && (defined &$gradesub)) {$value = &$gradesub($value)}
1.40 ng 2401: $prevattempts.='<td>'.$value.' </td>';
1.16 harris41 2402: }
1.40 ng 2403: $prevattempts.='</tr></table></td></tr></table>';
1.1 albertel 2404: } else {
2405: $prevattempts='Nothing submitted - no attempts.';
2406: }
2407: } else {
2408: $prevattempts='No data.';
2409: }
1.10 albertel 2410: }
2411:
1.107 albertel 2412: sub relative_to_absolute {
2413: my ($url,$output)=@_;
2414: my $parser=HTML::TokeParser->new(\$output);
2415: my $token;
2416: my $thisdir=$url;
2417: my @rlinks=();
2418: while ($token=$parser->get_token) {
2419: if ($token->[0] eq 'S') {
2420: if ($token->[1] eq 'a') {
2421: if ($token->[2]->{'href'}) {
2422: $rlinks[$#rlinks+1]=$token->[2]->{'href'};
2423: }
2424: } elsif ($token->[1] eq 'img' || $token->[1] eq 'embed' ) {
2425: $rlinks[$#rlinks+1]=$token->[2]->{'src'};
2426: } elsif ($token->[1] eq 'base') {
2427: $thisdir=$token->[2]->{'href'};
2428: }
2429: }
2430: }
2431: $thisdir=~s-/[^/]*$--;
2432: foreach (@rlinks) {
2433: unless (($_=~/^http:\/\//i) ||
2434: ($_=~/^\//) ||
2435: ($_=~/^javascript:/i) ||
2436: ($_=~/^mailto:/i) ||
2437: ($_=~/^\#/)) {
2438: my $newlocation=&Apache::lonnet::hreflocation($thisdir,$_);
2439: $output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/;
2440: }
2441: }
2442: # -------------------------------------------------- Deal with Applet codebases
2443: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
2444: return $output;
2445: }
2446:
1.112 bowersj2 2447: =pod
2448:
2449: =item * get_student_view
2450:
2451: show a snapshot of what student was looking at
2452:
2453: =cut
2454:
1.10 albertel 2455: sub get_student_view {
1.186 albertel 2456: my ($symb,$username,$domain,$courseid,$target,$moreenv) = @_;
1.114 www 2457: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2458: my (%form);
1.10 albertel 2459: my @elements=('symb','courseid','domain','username');
2460: foreach my $element (@elements) {
1.186 albertel 2461: $form{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2462: }
1.186 albertel 2463: if (defined($moreenv)) {
2464: %form=(%form,%{$moreenv});
2465: }
1.236 albertel 2466: if (defined($target)) { $form{'grade_target'} = $target; }
1.107 albertel 2467: $feedurl=&Apache::lonnet::clutter($feedurl);
1.186 albertel 2468: my $userview=&Apache::lonnet::ssi_body($feedurl,%form);
1.11 albertel 2469: $userview=~s/\<body[^\>]*\>//gi;
2470: $userview=~s/\<\/body\>//gi;
2471: $userview=~s/\<html\>//gi;
2472: $userview=~s/\<\/html\>//gi;
2473: $userview=~s/\<head\>//gi;
2474: $userview=~s/\<\/head\>//gi;
2475: $userview=~s/action\s*\=/would_be_action\=/gi;
1.107 albertel 2476: $userview=&relative_to_absolute($feedurl,$userview);
1.11 albertel 2477: return $userview;
2478: }
2479:
1.112 bowersj2 2480: =pod
2481:
2482: =item * get_student_answers()
2483:
2484: show a snapshot of how student was answering problem
2485:
2486: =cut
2487:
1.11 albertel 2488: sub get_student_answers {
1.100 sakharuk 2489: my ($symb,$username,$domain,$courseid,%form) = @_;
1.114 www 2490: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2491: my (%moreenv);
1.11 albertel 2492: my @elements=('symb','courseid','domain','username');
2493: foreach my $element (@elements) {
1.186 albertel 2494: $moreenv{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2495: }
1.186 albertel 2496: $moreenv{'grade_target'}='answer';
2497: %moreenv=(%form,%moreenv);
2498: my $userview=&Apache::lonnet::ssi('/res/'.$feedurl,%moreenv);
1.10 albertel 2499: return $userview;
1.1 albertel 2500: }
1.116 albertel 2501:
2502: =pod
2503:
2504: =item * &submlink()
2505:
1.242 albertel 2506: Inputs: $text $uname $udom $symb $target
1.116 albertel 2507:
2508: Returns: A link to grades.pm such as to see the SUBM view of a student
2509:
2510: =cut
2511:
2512: ###############################################
2513: sub submlink {
1.242 albertel 2514: my ($text,$uname,$udom,$symb,$target)=@_;
1.116 albertel 2515: if (!($uname && $udom)) {
2516: (my $cursymb, my $courseid,$udom,$uname)=
2517: &Apache::lonxml::whichuser($symb);
2518: if (!$symb) { $symb=$cursymb; }
2519: }
1.254 matthew 2520: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
1.242 albertel 2521: $symb=&Apache::lonnet::escape($symb);
2522: if ($target) { $target="target=\"$target\""; }
2523: return '<a href="/adm/grades?&command=submission&'.
2524: 'symb='.$symb.'&student='.$uname.
2525: '&userdom='.$udom.'" '.$target.'>'.$text.'</a>';
2526: }
2527: ##############################################
2528:
2529: =pod
2530:
2531: =item * &pgrdlink()
2532:
2533: Inputs: $text $uname $udom $symb $target
2534:
2535: Returns: A link to grades.pm such as to see the PGRD view of a student
2536:
2537: =cut
2538:
2539: ###############################################
2540: sub pgrdlink {
2541: my $link=&submlink(@_);
2542: $link=~s/(&command=submission)/$1&showgrading=yes/;
2543: return $link;
2544: }
2545: ##############################################
2546:
2547: =pod
2548:
2549: =item * &pprmlink()
2550:
2551: Inputs: $text $uname $udom $symb $target
2552:
2553: Returns: A link to parmset.pm such as to see the PPRM view of a
1.283 albertel 2554: student and a specific resource
1.242 albertel 2555:
2556: =cut
2557:
2558: ###############################################
2559: sub pprmlink {
2560: my ($text,$uname,$udom,$symb,$target)=@_;
2561: if (!($uname && $udom)) {
2562: (my $cursymb, my $courseid,$udom,$uname)=
2563: &Apache::lonxml::whichuser($symb);
2564: if (!$symb) { $symb=$cursymb; }
2565: }
1.254 matthew 2566: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
1.242 albertel 2567: $symb=&Apache::lonnet::escape($symb);
2568: if ($target) { $target="target=\"$target\""; }
2569: return '<a href="/adm/parmset?&command=set&'.
2570: 'symb='.$symb.'&uname='.$uname.
2571: '&udom='.$udom.'" '.$target.'>'.$text.'</a>';
1.116 albertel 2572: }
2573: ##############################################
1.37 matthew 2574:
1.112 bowersj2 2575: =pod
2576:
2577: =back
2578:
2579: =cut
2580:
1.37 matthew 2581: ###############################################
1.51 www 2582:
2583:
2584: sub timehash {
2585: my @ltime=localtime(shift);
2586: return ( 'seconds' => $ltime[0],
2587: 'minutes' => $ltime[1],
2588: 'hours' => $ltime[2],
2589: 'day' => $ltime[3],
2590: 'month' => $ltime[4]+1,
2591: 'year' => $ltime[5]+1900,
2592: 'weekday' => $ltime[6],
2593: 'dayyear' => $ltime[7]+1,
2594: 'dlsav' => $ltime[8] );
2595: }
2596:
2597: sub maketime {
2598: my %th=@_;
2599: return POSIX::mktime(
2600: ($th{'seconds'},$th{'minutes'},$th{'hours'},
1.210 www 2601: $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,-1));
1.70 www 2602: }
2603:
2604: #########################################
1.51 www 2605:
2606: sub findallcourses {
2607: my %courses=();
2608: my $now=time;
1.258 albertel 2609: foreach (keys %env) {
1.51 www 2610: if ($_=~/^user\.role\.\w+\.\/(\w+)\/(\w+)/) {
1.258 albertel 2611: my ($starttime,$endtime)=$env{$_};
1.51 www 2612: my $active=1;
2613: if ($starttime) {
2614: if ($now<$starttime) { $active=0; }
2615: }
2616: if ($endtime) {
2617: if ($now>$endtime) { $active=0; }
2618: }
2619: if ($active) { $courses{$1.'_'.$2}=1; }
2620: }
2621: }
2622: return keys %courses;
2623: }
1.37 matthew 2624:
1.54 www 2625: ###############################################
1.60 matthew 2626: ###############################################
2627:
2628: =pod
2629:
1.112 bowersj2 2630: =head1 Domain Template Functions
2631:
2632: =over 4
2633:
2634: =item * &determinedomain()
1.60 matthew 2635:
2636: Inputs: $domain (usually will be undef)
2637:
1.63 www 2638: Returns: Determines which domain should be used for designs
1.60 matthew 2639:
2640: =cut
1.54 www 2641:
1.60 matthew 2642: ###############################################
1.63 www 2643: sub determinedomain {
2644: my $domain=shift;
2645: if (! $domain) {
1.60 matthew 2646: # Determine domain if we have not been given one
2647: $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
1.258 albertel 2648: if ($env{'user.domain'}) { $domain=$env{'user.domain'}; }
2649: if ($env{'request.role.domain'}) {
2650: $domain=$env{'request.role.domain'};
1.60 matthew 2651: }
2652: }
1.63 www 2653: return $domain;
2654: }
2655: ###############################################
2656: =pod
2657:
1.112 bowersj2 2658: =item * &domainlogo()
1.63 www 2659:
2660: Inputs: $domain (usually will be undef)
2661:
2662: Returns: A link to a domain logo, if the domain logo exists.
2663: If the domain logo does not exist, a description of the domain.
2664:
2665: =cut
1.112 bowersj2 2666:
1.63 www 2667: ###############################################
2668: sub domainlogo {
2669: my $domain = &determinedomain(shift);
2670: # See if there is a logo
1.59 www 2671: if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') {
1.215 albertel 2672: my $logo=&lonhttpdurl("/adm/lonDomLogos/$domain.gif");
2673: return '<img src="'.$logo.'" alt="'.$domain.'" />';
1.60 matthew 2674: } elsif(exists($Apache::lonnet::domaindescription{$domain})) {
2675: return $Apache::lonnet::domaindescription{$domain};
1.59 www 2676: } else {
1.60 matthew 2677: return '';
1.59 www 2678: }
2679: }
1.63 www 2680: ##############################################
2681:
2682: =pod
2683:
1.112 bowersj2 2684: =item * &designparm()
1.63 www 2685:
2686: Inputs: $which parameter; $domain (usually will be undef)
2687:
2688: Returns: value of designparamter $which
2689:
2690: =cut
1.112 bowersj2 2691:
1.63 www 2692: ##############################################
2693: sub designparm {
2694: my ($which,$domain)=@_;
1.258 albertel 2695: if ($env{'browser.blackwhite'} eq 'on') {
1.110 www 2696: if ($which=~/\.(font|alink|vlink|link)$/) {
2697: return '#000000';
2698: }
2699: if ($which=~/\.(pgbg|sidebg)$/) {
2700: return '#FFFFFF';
2701: }
2702: if ($which=~/\.tabbg$/) {
2703: return '#CCCCCC';
2704: }
2705: }
1.258 albertel 2706: if ($env{'environment.color.'.$which}) {
2707: return $env{'environment.color.'.$which};
1.96 www 2708: }
1.63 www 2709: $domain=&determinedomain($domain);
2710: if ($designhash{$domain.'.'.$which}) {
2711: return $designhash{$domain.'.'.$which};
2712: } else {
2713: return $designhash{'default.'.$which};
2714: }
2715: }
1.59 www 2716:
1.60 matthew 2717: ###############################################
2718: ###############################################
2719:
2720: =pod
2721:
1.112 bowersj2 2722: =back
2723:
2724: =head1 HTTP Helpers
2725:
2726: =over 4
2727:
2728: =item * &bodytag()
1.60 matthew 2729:
2730: Returns a uniform header for LON-CAPA web pages.
2731:
2732: Inputs:
2733:
1.112 bowersj2 2734: =over 4
2735:
2736: =item * $title, A title to be displayed on the page.
2737:
2738: =item * $function, the current role (can be undef).
2739:
2740: =item * $addentries, extra parameters for the <body> tag.
2741:
2742: =item * $bodyonly, if defined, only return the <body> tag.
2743:
2744: =item * $domain, if defined, force a given domain.
2745:
2746: =item * $forcereg, if page should register as content page (relevant for
1.86 www 2747: text interface only)
1.60 matthew 2748:
1.326 albertel 2749: =item * $customtitle, alternate text to use instead of $title
2750: in the title box that appears, this text
2751: is not auto translated like the $title is
1.309 albertel 2752:
2753: =item * $notopbar, if true, keep the 'what is this' info but remove the
2754: navigational links
1.317 albertel 2755:
2756: =item * $bgcolor, used to override the bg coor on a webpage to a specific value
2757:
1.112 bowersj2 2758: =back
2759:
1.60 matthew 2760: Returns: A uniform header for LON-CAPA web pages.
2761: If $bodyonly is nonzero, a string containing a <body> tag will be returned.
2762: If $bodyonly is undef or zero, an html string containing a <body> tag and
2763: other decorations will be returned.
2764:
2765: =cut
2766:
1.54 www 2767: sub bodytag {
1.309 albertel 2768: my ($title,$function,$addentries,$bodyonly,$domain,$forcereg,$customtitle,
1.315 albertel 2769: $notopbar,$bgcolor)=@_;
1.117 www 2770: $title=&mt($title);
1.183 matthew 2771: $function = &get_users_function() if (!$function);
1.63 www 2772: my $img=&designparm($function.'.img',$domain);
1.315 albertel 2773: my $pgbg= $bgcolor || &designparm($function.'.pgbg',$domain);
1.63 www 2774: my $tabbg=&designparm($function.'.tabbg',$domain);
2775: my $font=&designparm($function.'.font',$domain);
2776: my $link=&designparm($function.'.link',$domain);
2777: my $alink=&designparm($function.'.alink',$domain);
2778: my $vlink=&designparm($function.'.vlink',$domain);
2779: my $sidebg=&designparm($function.'.sidebg',$domain);
1.110 www 2780: # Accessibility font enhance
1.146 www 2781: my $addstyle='';
1.258 albertel 2782: if ($env{'browser.fontenhance'} eq 'on') {
1.146 www 2783: $addstyle=' font-size: x-large;';
1.110 www 2784: }
1.63 www 2785: # role and realm
1.55 www 2786: my ($role,$realm)
1.258 albertel 2787: =&Apache::lonnet::plaintext((split(/\./,$env{'request.role'}))[0]);
1.55 www 2788: # realm
1.258 albertel 2789: if ($env{'request.course.id'}) {
1.55 www 2790: $realm=
1.258 albertel 2791: $env{'course.'.$env{'request.course.id'}.'.description'};
1.54 www 2792: }
1.55 www 2793: unless ($realm) { $realm=' '; }
2794: # Set messages
1.60 matthew 2795: my $messages=&domainlogo($domain);
1.101 www 2796: # Port for miniserver
1.83 albertel 2797: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
2798: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
1.330 albertel 2799:
2800: my $extra_body_attr = &make_attr_string($forcereg,$addentries);
1.329 albertel 2801:
1.101 www 2802: # construct main body tag
1.60 matthew 2803: my $bodytag = <<END;
1.231 albertel 2804: <style type="text/css">
1.147 www 2805: h1, h2, h3, th { font-family: Arial, Helvetica, sans-serif }
1.146 www 2806: a:focus { color: red; background: yellow }
1.285 albertel 2807: table.thinborder { border-collapse: collapse; }
1.289 albertel 2808: table.thinborder tr th, table.thinborder tr td { border-style: solid; border-width: 1px}
2809: form, .inline { display: inline; }
1.285 albertel 2810: .center { text-align: center; }
1.304 banghart 2811: .filename {font-family: monospace;}
1.146 www 2812: </style>
1.54 www 2813: <body bgcolor="$pgbg" text="$font" alink="$alink" vlink="$vlink" link="$link"
1.329 albertel 2814: style="margin-top: 0px;$addstyle" $extra_body_attr>
1.60 matthew 2815: END
1.330 albertel 2816:
2817: $bodytag .= &Apache::lontexconvert::init_math_support();
1.252 albertel 2818:
1.94 www 2819: my $upperleft='<img src="http://'.$ENV{'HTTP_HOST'}.':'.
1.150 matthew 2820: $lonhttpdPort.$img.'" alt="'.$function.'" />';
1.332 albertel 2821: if ($bodyonly
2822: || ($env{'request.state'} eq 'construct'
2823: && $env{'environment.remote'} ne 'off' )) {
1.60 matthew 2824: return $bodytag;
1.258 albertel 2825: } elsif ($env{'browser.interface'} eq 'textual') {
1.95 www 2826: # Accessibility
1.224 raeburn 2827:
1.336 ! albertel 2828: return $bodytag.&Apache::lonmenu::menubuttons($forcereg,$forcereg).
1.93 www 2829: '<h1>LON-CAPA: '.$title.'</h1>';
1.258 albertel 2830: } elsif ($env{'environment.remote'} eq 'off') {
1.95 www 2831: # No Remote
1.206 albertel 2832: my $roleinfo=(<<ENDROLE);
2833: <td bgcolor="$tabbg" align="right">
2834: <font size="2" face="Arial, Helvetica, sans-serif">
1.258 albertel 2835: $env{'environment.firstname'}
2836: $env{'environment.middlename'}
2837: $env{'environment.lastname'}
2838: $env{'environment.generation'}
1.206 albertel 2839: </font>
2840: <br />
2841: <font size="2" face="Arial, Helvetica, sans-serif">$role</font>
2842: <br />
2843: <font size="2" face="Arial, Helvetica, sans-serif">$realm</font>
2844: </td>
2845: ENDROLE
1.224 raeburn 2846: my $titleinfo = '<font face="Arial, Helvetica, sans-serif" size="+3" color="'.
1.229 albertel 2847: $font.'"><b>'.$title.'</b></font>';
1.224 raeburn 2848: if ($customtitle) {
2849: $titleinfo = $customtitle;
1.235 raeburn 2850: }
2851:
1.258 albertel 2852: if ($env{'request.state'} eq 'construct') {
1.229 albertel 2853: my ($uname,$thisdisfn)=
1.258 albertel 2854: ($env{'request.filename'} =~ m|^/home/([^/]+)/public_html/(.*)|);
1.229 albertel 2855: my $formaction='/priv/'.$uname.'/'.$thisdisfn;
2856: $formaction=~s/\/+/\//g;
1.237 raeburn 2857: unless ($customtitle) { #this is for resources; directories have customtitle, and crumbs and select recent are created in lonpubdir.pm
2858: my $parentpath = '';
1.241 raeburn 2859: my $lastitem = '';
2860: if ($thisdisfn =~ m-(.+/)([^/]*)$-) {
1.235 raeburn 2861: $parentpath = $1;
1.241 raeburn 2862: $lastitem = $2;
2863: } else {
2864: $lastitem = $thisdisfn;
1.235 raeburn 2865: }
2866: $titleinfo = &Apache::loncommon::help_open_menu('','','','',3,'Authoring').
2867: '<font face="Arial, Helvetica, sans-serif"><b>Construction Space</b>:</font> '.
2868: '<form name="dirs" method="post" action="'.$formaction
2869: .'" target="_top"><tt><b>'
1.241 raeburn 2870: .&Apache::lonhtmlcommon::crumbs($uname.'/'.$parentpath,'_top','/priv','','+1',1)."<font size=\"+1\">$lastitem</font></b></tt><br />"
1.235 raeburn 2871: .&Apache::lonhtmlcommon::select_recent('construct','recent','this.form.action=this.form.recent.value;this.form.submit()')
2872: .'</form>'
2873: .&Apache::lonmenu::constspaceform();
1.229 albertel 2874:
1.235 raeburn 2875: }
2876: $forcereg=1;
2877: }
2878: my $titletable = '<table bgcolor="'.$pgbg.'" width="100%" border="0" '.
2879: 'cellspacing="3" cellpadding="3">'.
1.270 albertel 2880: '<tr><td bgcolor="'.$tabbg.'">'.
1.235 raeburn 2881: $titleinfo.'</td>'.$roleinfo.'</tr></table>';
1.258 albertel 2882: if ($env{'request.state'} eq 'construct') {
1.272 raeburn 2883: if ($notopbar) {
2884: $bodytag .= $titletable;
2885: } else {
1.336 ! albertel 2886: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,$forcereg,$titletable);
1.272 raeburn 2887: }
1.235 raeburn 2888: } else {
1.272 raeburn 2889: if ($notopbar) {
2890: $bodytag .= $titletable;
2891: } else {
1.336 ! albertel 2892: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,$forcereg).
1.235 raeburn 2893: $titletable;
1.272 raeburn 2894: }
1.235 raeburn 2895: }
2896: return $bodytag;
1.94 www 2897: }
1.95 www 2898:
1.93 www 2899: #
1.95 www 2900: # Top frame rendering, Remote is up
1.93 www 2901: #
1.224 raeburn 2902: my $titleinfo = ' <font size="5" face="Arial, Helvetica, sans-serif"><b>'.$title.'</b></font>';
2903: if ($customtitle) {
2904: $titleinfo = $customtitle;
2905: }
1.245 matthew 2906: #
2907: # Extra info if you are the DC
2908: my $dc_info = '';
1.258 albertel 2909: if ($env{'user.adv'} && exists($env{'user.role.dc./'.
2910: $env{'course.'.$env{'request.course.id'}.
1.245 matthew 2911: '.domain'}.'/'})) {
1.258 albertel 2912: my $cid = $env{'request.course.id'};
2913: $dc_info.= $cid.' '.$env{'course.'.$cid.'.internal.coursecode'};
1.245 matthew 2914: $dc_info = '('.$dc_info.')';
2915: }
1.305 www 2916: # Explicit link to get inline menu
2917: my $menu='<br /><font size="2" face="Arial, Helvetica, sans-serif"> <a href="/adm/remote?action=collapse">'.&mt('Switch to Inline Menu Mode').'</a></font>';
1.245 matthew 2918: #
1.94 www 2919: return(<<ENDBODY);
1.60 matthew 2920: $bodytag
1.296 albertel 2921: <table width="100%" cellspacing="0" border="0" cellpadding="0">
1.95 www 2922: <tr><td bgcolor="$sidebg">
1.94 www 2923: $upperleft</td>
1.95 www 2924: <td bgcolor="$sidebg" align="right">$messages </td>
1.55 www 2925: </tr>
1.54 www 2926: <tr>
1.55 www 2927: <td rowspan="3" bgcolor="$tabbg">
1.305 www 2928: $titleinfo $dc_info $menu
1.257 matthew 2929: </td><td bgcolor="$tabbg" align="right">
1.146 www 2930: <font size="2" face="Arial, Helvetica, sans-serif">
1.258 albertel 2931: $env{'environment.firstname'}
2932: $env{'environment.middlename'}
2933: $env{'environment.lastname'}
2934: $env{'environment.generation'}
1.55 www 2935: </font>
1.54 www 2936: </td>
2937: </tr>
2938: <tr><td bgcolor="$tabbg" align="right">
1.146 www 2939: <font size="2" face="Arial, Helvetica, sans-serif">$role</font>
1.54 www 2940: </td></tr>
1.55 www 2941: <tr>
1.148 www 2942: <td bgcolor="$tabbg" align="right"><font size="2" face="Arial, Helvetica, sans-serif">$realm</font> </td></tr>
1.202 albertel 2943: </table><br />
1.54 www 2944: ENDBODY
1.182 matthew 2945: }
2946:
1.330 albertel 2947: sub make_attr_string {
2948: my ($register,$attr_ref) = @_;
2949:
2950: if ($attr_ref && !ref($attr_ref)) {
2951: die("addentries Must be a hash ref ".
2952: join(':',caller(1))." ".
2953: join(':',caller(0))." ");
2954: }
2955:
2956: if ($register) {
2957: $attr_ref->{'onload'} = &Apache::lonmenu::loadevents().
2958: $attr_ref->{'onload'};
2959: $attr_ref->{'onunload'} = &Apache::lonmenu::unloadevents().
2960: $attr_ref->{'onunload'};
2961: }
2962: my $attr_string;
2963: foreach my $attr (keys(%$attr_ref)) {
2964: $attr_string .= " $attr=\"".$attr_ref->{$attr}.'" ';
2965: }
2966: return $attr_string;
2967: }
2968:
2969:
1.182 matthew 2970: ###############################################
1.251 albertel 2971: ###############################################
2972:
2973: =pod
2974:
2975: =back
2976:
1.306 albertel 2977: =head1 HTML Helpers
1.251 albertel 2978:
2979: =over 4
2980:
2981: =item * &endbodytag()
2982:
2983: Returns a uniform footer for LON-CAPA web pages.
2984:
1.306 albertel 2985: Inputs: none
1.251 albertel 2986:
2987: =back
2988:
2989: =cut
2990:
2991: sub endbodytag {
2992: my $endbodytag='</body>';
1.269 albertel 2993: $endbodytag=&Apache::lontexconvert::jsMath_process()."\n".$endbodytag;
1.315 albertel 2994: if ( exists( $env{'internal.head.redirect'} ) ) {
2995: $endbodytag=
2996: "<br /><a href=\"$env{'internal.head.redirect'}\">".
2997: &mt('Continue').'</a>'.
2998: $endbodytag;
2999: }
1.251 albertel 3000: return $endbodytag;
3001: }
3002:
1.306 albertel 3003: =pod
3004:
3005: =over 4
3006:
3007: =item * &headtag()
3008:
3009: Returns a uniform footer for LON-CAPA web pages.
3010:
1.307 albertel 3011: Inputs: $title - optional title for the head
3012: $head_extra - optional extra HTML to put inside the <head>
1.315 albertel 3013: $args - optional arguments
1.319 albertel 3014: force_register - if is true call registerurl so the remote is
3015: informed
3016:
1.315 albertel 3017: redirect - array ref of seconds before redirect occurs
3018: url to redirect to
3019: (side effect of setting
3020: $env{'internal.head.redirect'} to the url
3021: redirected too)
1.306 albertel 3022: =back
3023:
3024: =cut
3025:
3026: sub headtag {
1.313 albertel 3027: my ($title,$head_extra,$args) = @_;
1.306 albertel 3028:
1.308 albertel 3029: my $result =
3030: '<head>'.
3031: &Apache::lonxml::fontsettings().
3032: &Apache::lonhtmlcommon::htmlareaheaders();
1.319 albertel 3033:
3034: if ($args->{'force_register'}) {
3035: $result .= &Apache::lonmenu::registerurl(1);
3036: }
3037:
1.314 albertel 3038: if (ref($args->{'redirect'})) {
3039: my ($time,$url) = @{$args->{'redirect'}};
1.315 albertel 3040: $url = &Apache::lonenc::check_encrypt($url);
3041: $env{'internal.head.redirect'} = $url;
1.313 albertel 3042: $result.=<<ADDMETA
3043: <meta http-equiv="pragma" content="no-cache" />
1.324 raeburn 3044: <meta HTTP-EQUIV="Refresh" CONTENT="$time; url=$url" />
1.313 albertel 3045: ADDMETA
3046: }
1.306 albertel 3047: if (!defined($title)) {
3048: $title = 'The LearningOnline Network with CAPA';
3049: }
3050:
1.315 albertel 3051: $result .= '<title> LON-CAPA '.&mt($title).'</title>'.$head_extra;
1.306 albertel 3052: return $result;
3053: }
3054:
3055: =pod
3056:
3057: =over 4
3058:
3059: =item * &endheadtag()
3060:
3061: Returns a uniform </head> for LON-CAPA web pages.
3062:
3063: Inputs: none
3064:
3065: =back
3066:
3067: =cut
3068:
3069: sub endheadtag {
3070: return '</head>';
3071: }
3072:
3073: =pod
3074:
3075: =over 4
3076:
3077: =item * &head()
3078:
3079: Returns a uniform complete <head>..</head> section for LON-CAPA web pages.
3080:
3081: Inputs: $title - optional title for the page
1.307 albertel 3082: $head_extra - optional extra HTML to put inside the <head>
1.306 albertel 3083: =back
3084:
3085: =cut
3086:
3087: sub head {
1.325 albertel 3088: my ($title,$head_extra,$args) = @_;
3089: return &headtag($title,$head_extra,$args).&endheadtag();
1.306 albertel 3090: }
3091:
3092: =pod
3093:
3094: =over 4
3095:
3096: =item * &start_page()
3097:
3098: Returns a complete <html> .. <body> section for LON-CAPA web pages.
3099:
3100: Inputs: $title - optional title for the page
3101: $head_extra - optional extra HTML to incude inside the <head>
1.315 albertel 3102: $args - additional optional args supported are:
1.317 albertel 3103: only_body -> is true will set &bodytag() onlybodytag
3104: arg on
3105: no_nav_bar -> is true will set &bodytag() notopbar arg on
3106: add_entries -> additional attributes to add to the <body>
3107: domain -> force to color decorate a page for a
3108: specific domain
3109: function -> force usage of a specific rolish color
3110: scheme
3111: redirect -> see &headtag()
3112: bgcolor -> override the default page bg color
3113: js_ready -> return a string ready for being used in
3114: a javascript writeln
1.320 albertel 3115: html_encode -> return a string ready for being used in
3116: a html attribute
1.317 albertel 3117: force_register -> if is true will turn on the &bodytag()
3118: $forcereg arg
1.326 albertel 3119: body_title -> alternate text to use instead of $title
3120: in the title box that appears, this text
3121: is not auto translated like the $title is
1.330 albertel 3122: frameset -> if true will start with a <frameset>
3123: rather than <body>
1.306 albertel 3124: =back
3125:
3126: =cut
3127:
3128: sub start_page {
1.309 albertel 3129: my ($title,$head_extra,$args) = @_;
1.318 albertel 3130: #&Apache::lonnet::logthis("start_page ".join(':',caller(0)));
1.313 albertel 3131: my %head_args;
1.319 albertel 3132: foreach my $arg ('redirect','force_register') {
3133: if (defined($args->{$arg})) {
1.324 raeburn 3134: $head_args{$arg} = $args->{$arg};
1.319 albertel 3135: }
1.313 albertel 3136: }
1.319 albertel 3137:
1.315 albertel 3138: $env{'internal.start_page'}++;
3139: my $result =
1.306 albertel 3140: &Apache::lonxml::xmlbegin().
1.330 albertel 3141: &headtag($title,$head_extra,\%head_args).&endheadtag();
3142: if ($args->{'frameset'}) {
3143: my $attr_string = &make_attr_string($args->{'force_register'},
3144: $args->{'add_entries'});
3145: $result .= "\n<frameset $attr_string>\n";
3146: } else {
3147: $result .=
3148: &bodytag($title,
3149: $args->{'function'}, $args->{'add_entries'},
3150: $args->{'only_body'}, $args->{'domain'},
3151: $args->{'force_register'}, $args->{'body_title'},
3152: $args->{'no_nav_bar'}, $args->{'bgcolor'});
3153: }
1.315 albertel 3154: if ($args->{'js_ready'}) {
1.317 albertel 3155: $result = &js_ready($result);
1.315 albertel 3156: }
1.320 albertel 3157: if ($args->{'html_encode'}) {
3158: $result = &html_encode($result);
3159: }
1.315 albertel 3160: return $result;
1.306 albertel 3161: }
3162:
1.330 albertel 3163:
1.306 albertel 3164: =pod
3165:
3166: =over 4
3167:
3168: =item * &head()
3169:
3170: Returns a complete </body></html> section for LON-CAPA web pages.
3171:
1.315 albertel 3172: Inputs: $args - additional optional args supported are:
3173: js_ready -> return a string ready for being used in
3174: a javascript writeln
1.320 albertel 3175: html_encode -> return a string ready for being used in
3176: a html attribute
1.330 albertel 3177: frameset -> if true will start with a <frameset>
3178: rather than <body>
1.306 albertel 3179: =back
3180:
3181: =cut
3182:
3183: sub end_page {
1.315 albertel 3184: my ($args) = @_;
1.318 albertel 3185: #&Apache::lonnet::logthis("end_page ".join(':',caller(0)));
1.315 albertel 3186: $env{'internal.end_page'}++;
1.330 albertel 3187: my $result;
1.335 albertel 3188: if ($args->{'discussion'}) {
3189: my ($target,$parser);
3190: if (ref($args->{'discussion'})) {
3191: ($target,$parser) =($args->{'discussion'}{'target'},
3192: $args->{'discussion'}{'parser'});
3193: }
3194: $result .= &Apache::lonxml::xmlend($target,$parser);
3195: }
3196:
1.330 albertel 3197: if ($args->{'frameset'}) {
3198: $result .= '</frameset>';
3199: } else {
3200: $result .= &endbodytag();
3201: }
3202: $result .= "\n</html>";
3203:
1.315 albertel 3204: if ($args->{'js_ready'}) {
1.317 albertel 3205: $result = &js_ready($result);
1.315 albertel 3206: }
1.335 albertel 3207:
1.320 albertel 3208: if ($args->{'html_encode'}) {
3209: $result = &html_encode($result);
3210: }
1.335 albertel 3211:
1.315 albertel 3212: return $result;
3213: }
3214:
1.320 albertel 3215: sub html_encode {
3216: my ($result) = @_;
3217:
1.322 albertel 3218: $result = &HTML::Entities::encode($result,'<>&"');
1.320 albertel 3219:
3220: return $result;
3221: }
1.317 albertel 3222: sub js_ready {
3223: my ($result) = @_;
3224:
1.323 albertel 3225: $result =~ s/[\n\r]/ /xmsg;
3226: $result =~ s/\\/\\\\/xmsg;
3227: $result =~ s/'/\\'/xmsg;
3228: $result =~ s{</script>}{</scrip'+'t>}xmsg;
1.317 albertel 3229:
3230: return $result;
3231: }
3232:
1.315 albertel 3233: sub validate_page {
3234: if ( exists($env{'internal.start_page'})
1.316 albertel 3235: && $env{'internal.start_page'} > 1) {
3236: &Apache::lonnet::logthis('start_page called multiple times '.
1.318 albertel 3237: $env{'internal.start_page'}.' '.
1.316 albertel 3238: $ENV{'request.filename'});
1.315 albertel 3239: }
3240: if ( exists($env{'internal.end_page'})
1.316 albertel 3241: && $env{'internal.end_page'} > 1) {
3242: &Apache::lonnet::logthis('end_page called multiple times '.
1.318 albertel 3243: $env{'internal.end_page'}.' '.
1.316 albertel 3244: $env{'request.filename'});
1.315 albertel 3245: }
3246: if ( exists($env{'internal.start_page'})
3247: && ! exists($env{'internal.end_page'})) {
1.316 albertel 3248: &Apache::lonnet::logthis('start_page called without end_page '.
3249: $env{'request.filename'});
1.315 albertel 3250: }
3251: if ( ! exists($env{'internal.start_page'})
3252: && exists($env{'internal.end_page'})) {
1.316 albertel 3253: &Apache::lonnet::logthis('end_page called without start_page'.
3254: $env{'request.filename'});
1.315 albertel 3255: }
1.306 albertel 3256: }
1.315 albertel 3257:
1.318 albertel 3258: sub simple_error_page {
3259: my ($r,$title,$msg) = @_;
3260: my $page =
3261: &Apache::loncommon::start_page($title).
3262: &mt($msg).
3263: &Apache::loncommon::end_page();
3264: if (ref($r)) {
3265: $r->print($page);
1.327 albertel 3266: return;
1.318 albertel 3267: }
3268: return $page;
3269: }
1.251 albertel 3270: ###############################################
1.182 matthew 3271:
3272: =pod
3273:
1.306 albertel 3274: =over 4
3275:
1.182 matthew 3276: =item get_users_function
3277:
3278: Used by &bodytag to determine the current users primary role.
3279: Returns either 'student','coordinator','admin', or 'author'.
3280:
3281: =cut
3282:
3283: ###############################################
3284: sub get_users_function {
3285: my $function = 'student';
1.258 albertel 3286: if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
1.182 matthew 3287: $function='coordinator';
3288: }
1.258 albertel 3289: if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
1.182 matthew 3290: $function='admin';
3291: }
1.258 albertel 3292: if (($env{'request.role'}=~/^(au|ca)/) ||
1.182 matthew 3293: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
3294: $function='author';
3295: }
3296: return $function;
1.54 www 3297: }
1.99 www 3298:
3299: ###############################################
3300:
1.233 raeburn 3301: =pod
3302:
1.274 raeburn 3303: =item check_user_status
3304:
3305: Determines current status of supplied role for a
3306: specific user. Roles can be active, previous or future.
3307:
3308: Inputs:
3309: user's domain, user's username, course's domain,
3310: course's number, optional section/group.
3311:
3312: Outputs:
3313: role status: active, previous or future.
3314:
3315: =cut
3316:
3317: sub check_user_status {
3318: my ($udom,$uname,$cdom,$crs,$role,$secgrp) = @_;
3319: my %userinfo = &Apache::lonnet::dump('roles',$udom,$uname);
3320: my @uroles = keys %userinfo;
3321: my $srchstr;
3322: my $active_chk = 'none';
3323: if (@uroles > 0) {
3324: if (($role eq 'cc') || ($secgrp eq '') || (!defined($secgrp))) {
3325: $srchstr = '/'.$cdom.'/'.$crs.'_'.$role;
3326: } else {
3327: $srchstr = '/'.$cdom.'/'.$crs.'/'.$secgrp.'_'.$role; }
3328: if (grep/^$srchstr$/,@uroles) {
3329: my $role_end = 0;
3330: my $role_start = 0;
3331: $active_chk = 'active';
3332: if ($userinfo{$srchstr} =~ m/^($role)_(\d+)/) {
3333: $role_end = $2;
3334: if ($userinfo{$srchstr} =~ m/^($role)_($role_end)_(\d+)$/) {
3335: $role_start = $3;
3336: }
3337: }
3338: if ($role_start > 0) {
3339: if (time < $role_start) {
3340: $active_chk = 'future';
3341: }
3342: }
3343: if ($role_end > 0) {
3344: if (time > $role_end) {
3345: $active_chk = 'previous';
3346: }
3347: }
3348: }
3349: }
3350: return $active_chk;
3351: }
3352:
3353: ###############################################
3354:
3355: =pod
3356:
1.233 raeburn 3357: =item get_sections
3358:
3359: Determines all the sections for a course including
3360: sections with students and sections containing other roles.
3361: Incoming parameters: domain, course number, reference to
3362: section hash (keys to be section/group IDs), reference to
3363: array containing roles for which sections should be gathered
3364: (optional). If the fourth argument is undefined, sections
3365: are gathered for any role.
3366:
3367: Returns number of sections.
3368:
3369: =cut
3370:
3371: ###############################################
3372: sub get_sections {
3373: my ($cdom,$cnum,$sectioncount,$possible_roles) = @_;
1.240 albertel 3374: if (!($cdom && $cnum)) { return 0; }
1.233 raeburn 3375: my $numsections = 0;
1.240 albertel 3376:
3377: if (!defined($possible_roles) || (grep/^st$/,@$possible_roles)) {
1.276 albertel 3378: my ($classlist) = &Apache::loncoursedata::get_classlist($cdom,$cnum);
1.240 albertel 3379: my $sec_index = &Apache::loncoursedata::CL_SECTION();
3380: my $status_index = &Apache::loncoursedata::CL_STATUS();
3381: while (my ($student,$data) = each %$classlist) {
3382: my ($section,$status) = ($data->[$sec_index],
3383: $data->[$status_index]);
3384: unless ($section eq '-1' || $section =~ /^\s*$/) {
3385: if (!defined($$sectioncount{$section})) { $numsections++; }
3386: $$sectioncount{$section}++;
3387: }
3388: }
3389: }
3390: my %courseroles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
3391: foreach my $user (sort(keys(%courseroles))) {
3392: if ($user !~ /^(\w{2})/) { next; }
3393: my ($role) = ($user =~ /^(\w{2})/);
3394: if ($possible_roles && !(grep(/^$role$/,@$possible_roles))) { next; }
3395: my $section;
3396: if ($role eq 'cr' &&
3397: $user =~ m-^$role/[^/]*/[^/]*/[^/]*:[^:]*:[^:]*:(\w+)-) {
3398: $section=$1;
3399: }
3400: if ($user =~ /^$role:[^:]*:[^:]*:(\w+)/) { $section=$1; }
3401: if (!defined($section) || $section eq '-1') { next; }
3402: if (!defined($$sectioncount{$section})) { $numsections++; }
3403: $$sectioncount{$section}++;
1.233 raeburn 3404: }
3405: return $numsections;
3406: }
3407:
1.274 raeburn 3408: ###############################################
1.298 raeburn 3409:
3410: =pod
3411:
3412: =item coursegroups
3413:
3414: Retrieve information about groups in a course,
3415:
3416: Input:
3417: 1. Reference to hash to populate with group information.
3418: 2. Optional course domain
3419: 3. Optional course number
3420: 4. Optional group name
3421:
3422: Course domain and number will be taken from user's
3423: environment if not supplied. Optional group name will'
3424: be passed to lonnet::get_coursegroups() as a regexp to
3425: use in the call to the dump function.
3426:
3427: Output
3428: Returns number of groups in the course (subject to the
3429: optional group name filter).
3430:
3431: Side effects:
3432: Populates the referenced curr_groups hash, with key,
3433: value pairs. Keys are group names, corresponding values
3434: are scalars containing group information in XML. This
3435: can be sent to &get_group_settings() to be parsed.
3436:
3437: =cut
3438:
3439: ###############################################
3440:
3441: sub coursegroups {
3442: my ($curr_groups,$cdom,$cnum,$group) = @_;
3443: my $numgroups;
3444: if (!defined($cdom) || !defined($cnum)) {
3445: my $cid = $env{'request.course.id'};
3446: $cdom = $env{'course.'.$cid.'.domain'};
3447: $cnum = $env{'course.'.$cid.'.num'};
3448: }
3449: %{$curr_groups} = &Apache::lonnet::get_coursegroups($cdom,$cnum,$group);
3450: my ($tmp) = keys(%{$curr_groups});
3451: if ($tmp=~/^error:/) {
3452: unless ($tmp eq 'error: 2 tie(GDBM) Failed while attempting dump') {
3453: &logthis('Error retrieving groups: '.$tmp.' in '.$cnum.':'.
3454: $cdom);
3455: }
3456: $numgroups = 0;
3457: } else {
3458: $numgroups = keys(%{$curr_groups});
3459: }
3460: return $numgroups;
3461: }
3462:
3463: ###############################################
1.274 raeburn 3464:
1.275 raeburn 3465: =pod
1.294 raeburn 3466:
3467: =item get_group_settings
3468:
3469: Uses TokeParser to extract group information from the
3470: XML used to describe course groups.
3471:
3472: Input:
1.298 raeburn 3473: Scalar containing XML - as retrieved from &coursegroups().
1.294 raeburn 3474:
3475: Output:
3476: Hash containing group information as key=values for (a), and
3477: hash of hashes for (b)
3478:
3479: Keys (in two categories):
3480: (a) groupname, creator, creation, modified, startdate,enddate.
3481: Corresponding values are name of the group, creator of the group
3482: (username:domain), UNIX time for date group was created, and
3483: settings were last modified, and default start and end access
3484: times for group members.
3485:
3486: (b) functions returned in hash of hashes.
3487: Outer hash key is functions.
3488: Inner hash keys are chat,discussion,email,files,homepage,roster.
3489: Corresponding values are either on or off, depending on
1.303 raeburn 3490: whether this type of functionality is available for the group.
1.294 raeburn 3491:
3492: =cut
3493:
3494: ###############################################
3495:
3496: sub get_group_settings {
3497: my ($groupinfo)=@_;
3498: my $parser=HTML::TokeParser->new(\$groupinfo);
3499: my $token;
3500: my $tool = '';
1.303 raeburn 3501: my $role = '';
1.294 raeburn 3502: my %content=();
3503: while ($token=$parser->get_token) {
3504: if ($token->[0] eq 'S') {
3505: my $entry=$token->[1];
1.303 raeburn 3506: if ($entry eq 'functions' || $entry eq 'autosec') {
1.294 raeburn 3507: %{$content{$entry}} = ();
3508: $tool = $entry;
1.303 raeburn 3509: } elsif ($entry eq 'role') {
3510: if ($tool eq 'autosec') {
3511: $role = $token->[2]{id};
3512: }
1.294 raeburn 3513: } else {
3514: my $value=$parser->get_text('/'.$entry);
3515: if ($entry eq 'name') {
3516: if ($tool eq 'functions') {
3517: my $function = $token->[2]{id};
3518: $content{$tool}{$function} = $value;
3519: }
3520: } elsif ($entry eq 'groupname') {
3521: $content{$entry}=&Apache::lonnet::unescape($value);
1.303 raeburn 3522: } elsif (($entry eq 'roles') || ($entry eq 'types') ||
3523: ($entry eq 'sectionpick') || ($entry eq 'defpriv')) {
3524: push(@{$content{$entry}},$value);
3525: } elsif ($entry eq 'section') {
3526: if ($tool eq 'autosec' && $role ne '') {
3527: push(@{$content{$tool}{$role}},$value);
3528: }
1.294 raeburn 3529: } else {
3530: $content{$entry}=$value;
3531: }
3532: }
3533: } elsif ($token->[0] eq 'E') {
1.303 raeburn 3534: if ($token->[1] eq 'functions' || $token->[1] eq 'autosec') {
1.294 raeburn 3535: $tool = '';
1.303 raeburn 3536: } elsif ($token->[1] eq 'role') {
3537: $role = '';
1.294 raeburn 3538: }
1.303 raeburn 3539:
1.294 raeburn 3540: }
3541: }
3542: return %content;
3543: }
3544:
3545: sub check_group_access {
3546: my ($group) = @_;
3547: my $access = 1;
3548: my $now = time;
3549: my ($start,$end) = split(/\./,$env{'user.role.gr/'.$env{'request.course,id'}.'/'.$group});
3550: if (($end!=0) && ($end<$now)) { $access = 0; }
3551: if (($start!=0) && ($start>$now)) { $access=0; }
3552: return $access;
3553: }
3554:
3555: ###############################################
3556:
3557: =pod
1.275 raeburn 3558:
3559: =item get_course_users
3560:
3561: Retrieves usernames:domains for users in the specified course
3562: with specific role(s), and access status.
3563:
3564: Incoming parameters:
1.277 albertel 3565: 1. course domain
3566: 2. course number
3567: 3. access status: users must have - either active,
1.275 raeburn 3568: previous, future, or all.
1.277 albertel 3569: 4. reference to array of permissible roles
1.288 raeburn 3570: 5. reference to array of section restrictions (optional)
3571: 6. reference to results object (hash of hashes).
3572: 7. reference to optional userdata hash
1.275 raeburn 3573: Keys of top level hash are roles.
3574: Keys of inner hashes are username:domain, with
3575: values set to access type.
1.288 raeburn 3576: Optional userdata hash returns an array with arguments in the
3577: same order as loncoursedata::get_classlist() for student data.
3578:
3579: Entries for end, start, section and status are blank because
3580: of the possibility of multiple values for non-student roles.
3581:
1.275 raeburn 3582: =cut
3583:
3584: ###############################################
3585:
3586: sub get_course_users {
1.288 raeburn 3587: my ($cdom,$cnum,$types,$roles,$sections,$users,$userdata) = @_;
3588: my %idx = ();
3589:
3590: $idx{udom} = &Apache::loncoursedata::CL_SDOM();
3591: $idx{uname} = &Apache::loncoursedata::CL_SNAME();
3592: $idx{end} = &Apache::loncoursedata::CL_END();
3593: $idx{start} = &Apache::loncoursedata::CL_START();
3594: $idx{id} = &Apache::loncoursedata::CL_ID();
3595: $idx{section} = &Apache::loncoursedata::CL_SECTION();
3596: $idx{fullname} = &Apache::loncoursedata::CL_FULLNAME();
3597: $idx{status} = &Apache::loncoursedata::CL_STATUS();
3598:
1.290 albertel 3599: if (grep(/^st$/,@{$roles})) {
1.276 albertel 3600: my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist($cdom,$cnum);
1.278 raeburn 3601: my $now = time;
1.277 albertel 3602: foreach my $student (keys(%{$classlist})) {
1.288 raeburn 3603: my $match = 0;
1.291 albertel 3604: if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
1.290 albertel 3605: unless(grep(/^\Q$$classlist{$student}[$idx{section}]\E$/,
3606: @{$sections})) {
3607: next;
3608: }
1.288 raeburn 3609: }
1.275 raeburn 3610: if (defined($$types{'active'})) {
1.288 raeburn 3611: if ($$classlist{$student}[$idx{status}] eq 'Active') {
1.275 raeburn 3612: push(@{$$users{st}{$student}},'active');
1.288 raeburn 3613: $match = 1;
1.275 raeburn 3614: }
3615: }
3616: if (defined($$types{'previous'})) {
1.288 raeburn 3617: if ($$classlist{$student}[$idx{end}] <= $now) {
1.275 raeburn 3618: push(@{$$users{st}{$student}},'previous');
1.288 raeburn 3619: $match = 1;
1.275 raeburn 3620: }
3621: }
3622: if (defined($$types{'future'})) {
1.288 raeburn 3623: if (($$classlist{$student}[$idx{start}] > $now) && ($$classlist{$student}[$idx{end}] > $now) || ($$classlist{$student}[$idx{end}] == 0) || ($$classlist{$student}[$idx{end}] eq '')) {
1.275 raeburn 3624: push(@{$$users{st}{$student}},'future');
1.288 raeburn 3625: $match = 1;
1.275 raeburn 3626: }
3627: }
1.288 raeburn 3628: if ($match && defined($userdata)) {
3629: $$userdata{$student} = $$classlist{$student};
3630: }
1.275 raeburn 3631: }
3632: }
3633: if ((@{$roles} > 0) && (@{$roles} ne "st")) {
3634: my @coursepersonnel = &Apache::lonnet::getkeys('nohist_userroles',$cdom,$cnum);
3635: foreach my $person (@coursepersonnel) {
1.288 raeburn 3636: my $match = 0;
1.275 raeburn 3637: my ($role,$user) = ($person =~ /^([^:]*):([^:]+:[^:]+)/);
3638: $user =~ s/:$//;
1.290 albertel 3639: if (($role) && (grep(/^\Q$role\E$/,@{$roles}))) {
1.288 raeburn 3640: my ($uname,$udom,$usec) = split(/:/,$user);
1.290 albertel 3641: if ($usec ne '' && (ref($sections) eq 'ARRAY') &&
3642: @{$sections} > 0) {
3643: unless(grep(/^\Q$usec\E$/,@{$sections})) {
3644: next;
3645: }
1.288 raeburn 3646: }
1.275 raeburn 3647: if ($uname ne '' && $udom ne '') {
3648: my $status = &check_user_status($udom,$uname,$cdom,$cnum,$role);
1.277 albertel 3649: foreach my $type (keys(%{$types})) {
1.275 raeburn 3650: if ($status eq $type) {
1.288 raeburn 3651: @{$$users{$role}{$user}} = $type;
3652: $match = 1;
3653: }
3654: }
1.290 albertel 3655: if ($match && defined($userdata) &&
3656: !exists($$userdata{$uname.':'.$udom})) {
3657: &get_user_info($udom,$uname,\%idx,$userdata);
1.275 raeburn 3658: }
3659: }
3660: }
3661: }
1.290 albertel 3662: if (grep(/^ow$/,@{$roles})) {
1.279 raeburn 3663: if ((defined($cdom)) && (defined($cnum))) {
3664: my %csettings = &Apache::lonnet::get('environment',['internal.courseowner'],$cdom,$cnum);
3665: if ( defined($csettings{'internal.courseowner'}) ) {
3666: my $owner = $csettings{'internal.courseowner'};
1.288 raeburn 3667: @{$$users{'ow'}{$owner.':'.$cdom}} = 'any';
1.290 albertel 3668: if (defined($userdata) &&
3669: !exists($$userdata{$owner.':'.$cdom})) {
3670: &get_user_info($cdom,$owner,\%idx,$userdata);
3671: }
1.279 raeburn 3672: }
3673: }
3674: }
1.275 raeburn 3675: }
3676: return;
3677: }
3678:
1.288 raeburn 3679: sub get_user_info {
3680: my ($udom,$uname,$idx,$userdata) = @_;
1.289 albertel 3681: $$userdata{$uname.':'.$udom}[$$idx{fullname}] =
3682: &plainname($uname,$udom,'lastname');
1.291 albertel 3683: $$userdata{$uname.':'.$udom}[$$idx{uname}] = $uname;
1.297 raeburn 3684: $$userdata{$uname.':'.$udom}[$$idx{udom}] = $udom;
1.288 raeburn 3685: return;
3686: }
1.275 raeburn 3687:
1.112 bowersj2 3688: =pod
3689:
3690: =item * get_unprocessed_cgi($query,$possible_names)
3691:
1.258 albertel 3692: Modify the %env hash to contain unprocessed CGI form parameters held in
1.112 bowersj2 3693: $query. The parameters listed in $possible_names (an array reference),
1.258 albertel 3694: will be set in $env{'form.name'} if they do not already exist.
1.112 bowersj2 3695:
3696: Typically called with $ENV{'QUERY_STRING'} as the first parameter.
3697: $possible_names is an ref to an array of form element names. As an example:
3698: get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);
1.258 albertel 3699: will result in $env{'form.uname'} and $env{'form.udom'} being set.
1.112 bowersj2 3700:
3701: =cut
1.1 albertel 3702:
1.6 albertel 3703: sub get_unprocessed_cgi {
1.25 albertel 3704: my ($query,$possible_names)= @_;
1.26 matthew 3705: # $Apache::lonxml::debug=1;
1.16 harris41 3706: foreach (split(/&/,$query)) {
1.6 albertel 3707: my ($name, $value) = split(/=/,$_);
1.25 albertel 3708: $name = &Apache::lonnet::unescape($name);
3709: if (!defined($possible_names) || (grep {$_ eq $name} @$possible_names)) {
3710: $value =~ tr/+/ /;
3711: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.258 albertel 3712: unless (defined($env{'form.'.$name})) { &add_to_env('form.'.$name,$value) };
1.25 albertel 3713: }
1.16 harris41 3714: }
1.6 albertel 3715: }
3716:
1.112 bowersj2 3717: =pod
3718:
3719: =item * cacheheader()
3720:
3721: returns cache-controlling header code
3722:
3723: =cut
3724:
1.7 albertel 3725: sub cacheheader {
1.258 albertel 3726: unless ($env{'request.method'} eq 'GET') { return ''; }
1.216 albertel 3727: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
3728: my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
1.7 albertel 3729: <meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />
3730: <meta HTTP-EQUIV="Pragma" CONTENT="no-cache" />';
1.216 albertel 3731: return $output;
1.7 albertel 3732: }
3733:
1.112 bowersj2 3734: =pod
3735:
3736: =item * no_cache($r)
3737:
3738: specifies header code to not have cache
3739:
3740: =cut
3741:
1.9 albertel 3742: sub no_cache {
1.216 albertel 3743: my ($r) = @_;
3744: if ($ENV{'REQUEST_METHOD'} ne 'GET' &&
1.258 albertel 3745: $env{'request.method'} ne 'GET') { return ''; }
1.216 albertel 3746: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime(time));
3747: $r->no_cache(1);
3748: $r->header_out("Expires" => $date);
3749: $r->header_out("Pragma" => "no-cache");
1.123 www 3750: }
3751:
3752: sub content_type {
1.181 albertel 3753: my ($r,$type,$charset) = @_;
1.299 foxr 3754: if ($r) {
3755: # Note that printout.pl calls this with undef for $r.
3756: &no_cache($r);
3757: }
1.258 albertel 3758: if ($env{'browser.mathml'} && $type eq 'text/html') { $type='text/xml'; }
1.181 albertel 3759: unless ($charset) {
3760: $charset=&Apache::lonlocal::current_encoding;
3761: }
3762: if ($charset) { $type.='; charset='.$charset; }
3763: if ($r) {
3764: $r->content_type($type);
3765: } else {
3766: print("Content-type: $type\n\n");
3767: }
1.9 albertel 3768: }
1.25 albertel 3769:
1.112 bowersj2 3770: =pod
3771:
3772: =item * add_to_env($name,$value)
3773:
1.258 albertel 3774: adds $name to the %env hash with value
1.112 bowersj2 3775: $value, if $name already exists, the entry is converted to an array
3776: reference and $value is added to the array.
3777:
3778: =cut
3779:
1.25 albertel 3780: sub add_to_env {
3781: my ($name,$value)=@_;
1.258 albertel 3782: if (defined($env{$name})) {
3783: if (ref($env{$name})) {
1.25 albertel 3784: #already have multiple values
1.258 albertel 3785: push(@{ $env{$name} },$value);
1.25 albertel 3786: } else {
3787: #first time seeing multiple values, convert hash entry to an arrayref
1.258 albertel 3788: my $first=$env{$name};
3789: undef($env{$name});
3790: push(@{ $env{$name} },$first,$value);
1.25 albertel 3791: }
3792: } else {
1.258 albertel 3793: $env{$name}=$value;
1.25 albertel 3794: }
1.31 albertel 3795: }
1.149 albertel 3796:
3797: =pod
3798:
3799: =item * get_env_multiple($name)
3800:
1.258 albertel 3801: gets $name from the %env hash, it seemlessly handles the cases where multiple
1.149 albertel 3802: values may be defined and end up as an array ref.
3803:
3804: returns an array of values
3805:
3806: =cut
3807:
3808: sub get_env_multiple {
3809: my ($name) = @_;
3810: my @values;
1.258 albertel 3811: if (defined($env{$name})) {
1.149 albertel 3812: # exists is it an array
1.258 albertel 3813: if (ref($env{$name})) {
3814: @values=@{ $env{$name} };
1.149 albertel 3815: } else {
1.258 albertel 3816: $values[0]=$env{$name};
1.149 albertel 3817: }
3818: }
3819: return(@values);
3820: }
3821:
1.31 albertel 3822:
1.41 ng 3823: =pod
1.45 matthew 3824:
3825: =back
1.41 ng 3826:
1.112 bowersj2 3827: =head1 CSV Upload/Handling functions
1.38 albertel 3828:
1.41 ng 3829: =over 4
3830:
1.112 bowersj2 3831: =item * upfile_store($r)
1.41 ng 3832:
3833: Store uploaded file, $r should be the HTTP Request object,
1.258 albertel 3834: needs $env{'form.upfile'}
1.41 ng 3835: returns $datatoken to be put into hidden field
3836:
3837: =cut
1.31 albertel 3838:
3839: sub upfile_store {
3840: my $r=shift;
1.258 albertel 3841: $env{'form.upfile'}=~s/\r/\n/gs;
3842: $env{'form.upfile'}=~s/\f/\n/gs;
3843: $env{'form.upfile'}=~s/\n+/\n/gs;
3844: $env{'form.upfile'}=~s/\n+$//gs;
1.31 albertel 3845:
1.258 albertel 3846: my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
3847: '_enroll_'.$env{'request.course.id'}.'_'.time.'_'.$$;
1.31 albertel 3848: {
1.158 raeburn 3849: my $datafile = $r->dir_config('lonDaemons').
3850: '/tmp/'.$datatoken.'.tmp';
3851: if ( open(my $fh,">$datafile") ) {
1.258 albertel 3852: print $fh $env{'form.upfile'};
1.158 raeburn 3853: close($fh);
3854: }
1.31 albertel 3855: }
3856: return $datatoken;
3857: }
3858:
1.56 matthew 3859: =pod
3860:
1.112 bowersj2 3861: =item * load_tmp_file($r)
1.41 ng 3862:
3863: Load uploaded file from tmp, $r should be the HTTP Request object,
1.258 albertel 3864: needs $env{'form.datatoken'},
3865: sets $env{'form.upfile'} to the contents of the file
1.41 ng 3866:
3867: =cut
1.31 albertel 3868:
3869: sub load_tmp_file {
3870: my $r=shift;
3871: my @studentdata=();
3872: {
1.158 raeburn 3873: my $studentfile = $r->dir_config('lonDaemons').
1.258 albertel 3874: '/tmp/'.$env{'form.datatoken'}.'.tmp';
1.158 raeburn 3875: if ( open(my $fh,"<$studentfile") ) {
3876: @studentdata=<$fh>;
3877: close($fh);
3878: }
1.31 albertel 3879: }
1.258 albertel 3880: $env{'form.upfile'}=join('',@studentdata);
1.31 albertel 3881: }
3882:
1.56 matthew 3883: =pod
3884:
1.112 bowersj2 3885: =item * upfile_record_sep()
1.41 ng 3886:
3887: Separate uploaded file into records
3888: returns array of records,
1.258 albertel 3889: needs $env{'form.upfile'} and $env{'form.upfiletype'}
1.41 ng 3890:
3891: =cut
1.31 albertel 3892:
3893: sub upfile_record_sep {
1.258 albertel 3894: if ($env{'form.upfiletype'} eq 'xml') {
1.31 albertel 3895: } else {
1.248 albertel 3896: my @records;
1.258 albertel 3897: foreach my $line (split(/\n/,$env{'form.upfile'})) {
1.248 albertel 3898: if ($line=~/^\s*$/) { next; }
3899: push(@records,$line);
3900: }
3901: return @records;
1.31 albertel 3902: }
3903: }
3904:
1.56 matthew 3905: =pod
3906:
1.112 bowersj2 3907: =item * record_sep($record)
1.41 ng 3908:
1.258 albertel 3909: Separate a record into fields $record should be an item from the upfile_record_sep(), needs $env{'form.upfiletype'}
1.41 ng 3910:
3911: =cut
3912:
1.263 www 3913: sub takeleft {
3914: my $index=shift;
3915: return substr('0000'.$index,-4,4);
3916: }
3917:
1.31 albertel 3918: sub record_sep {
3919: my $record=shift;
3920: my %components=();
1.258 albertel 3921: if ($env{'form.upfiletype'} eq 'xml') {
3922: } elsif ($env{'form.upfiletype'} eq 'space') {
1.31 albertel 3923: my $i=0;
3924: foreach (split(/\s+/,$record)) {
3925: my $field=$_;
3926: $field=~s/^(\"|\')//;
3927: $field=~s/(\"|\')$//;
1.263 www 3928: $components{&takeleft($i)}=$field;
1.31 albertel 3929: $i++;
3930: }
1.258 albertel 3931: } elsif ($env{'form.upfiletype'} eq 'tab') {
1.31 albertel 3932: my $i=0;
1.171 matthew 3933: foreach (split(/\t/,$record)) {
1.31 albertel 3934: my $field=$_;
3935: $field=~s/^(\"|\')//;
3936: $field=~s/(\"|\')$//;
1.263 www 3937: $components{&takeleft($i)}=$field;
1.31 albertel 3938: $i++;
3939: }
3940: } else {
3941: my @allfields=split(/\,/,$record);
3942: my $i=0;
3943: my $j;
3944: for ($j=0;$j<=$#allfields;$j++) {
3945: my $field=$allfields[$j];
3946: if ($field=~/^\s*(\"|\')/) {
3947: my $delimiter=$1;
3948: while (($field!~/$delimiter$/) && ($j<$#allfields)) {
3949: $j++;
3950: $field.=','.$allfields[$j];
3951: }
3952: $field=~s/^\s*$delimiter//;
3953: $field=~s/$delimiter\s*$//;
3954: }
1.263 www 3955: $components{&takeleft($i)}=$field;
1.31 albertel 3956: $i++;
3957: }
3958: }
3959: return %components;
3960: }
3961:
1.144 matthew 3962: ######################################################
3963: ######################################################
3964:
1.56 matthew 3965: =pod
3966:
1.112 bowersj2 3967: =item * upfile_select_html()
1.41 ng 3968:
1.144 matthew 3969: Return HTML code to select a file from the users machine and specify
3970: the file type.
1.41 ng 3971:
3972: =cut
3973:
1.144 matthew 3974: ######################################################
3975: ######################################################
1.31 albertel 3976: sub upfile_select_html {
1.144 matthew 3977: my %Types = (
3978: csv => &mt('CSV (comma separated values, spreadsheet)'),
3979: space => &mt('Space separated'),
3980: tab => &mt('Tabulator separated'),
3981: # xml => &mt('HTML/XML'),
3982: );
3983: my $Str = '<input type="file" name="upfile" size="50" />'.
3984: '<br />Type: <select name="upfiletype">';
3985: foreach my $type (sort(keys(%Types))) {
3986: $Str .= '<option value="'.$type.'" >'.$Types{$type}."</option>\n";
3987: }
3988: $Str .= "</select>\n";
3989: return $Str;
1.31 albertel 3990: }
3991:
1.301 albertel 3992: sub get_samples {
3993: my ($records,$toget) = @_;
3994: my @samples=({});
3995: my $got=0;
3996: foreach my $rec (@$records) {
3997: my %temp = &record_sep($rec);
3998: if (! grep(/\S/, values(%temp))) { next; }
3999: if (%temp) {
4000: $samples[$got]=\%temp;
4001: $got++;
4002: if ($got == $toget) { last; }
4003: }
4004: }
4005: return \@samples;
4006: }
4007:
1.144 matthew 4008: ######################################################
4009: ######################################################
4010:
1.56 matthew 4011: =pod
4012:
1.112 bowersj2 4013: =item * csv_print_samples($r,$records)
1.41 ng 4014:
4015: Prints a table of sample values from each column uploaded $r is an
4016: Apache Request ref, $records is an arrayref from
4017: &Apache::loncommon::upfile_record_sep
4018:
4019: =cut
4020:
1.144 matthew 4021: ######################################################
4022: ######################################################
1.31 albertel 4023: sub csv_print_samples {
4024: my ($r,$records) = @_;
1.301 albertel 4025: my $samples = &get_samples($records,3);
4026:
1.144 matthew 4027: $r->print(&mt('Samples').'<br /><table border="2"><tr>');
1.301 albertel 4028: foreach (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
1.144 matthew 4029: $r->print('<th>'.&mt('Column [_1]',($_+1)).'</th>'); }
1.31 albertel 4030: $r->print('</tr>');
1.301 albertel 4031: foreach my $hash (@$samples) {
1.31 albertel 4032: $r->print('<tr>');
1.301 albertel 4033: foreach (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
1.31 albertel 4034: $r->print('<td>');
4035: if (defined($$hash{$_})) { $r->print($$hash{$_}); }
4036: $r->print('</td>');
4037: }
4038: $r->print('</tr>');
4039: }
4040: $r->print('</tr></table><br />'."\n");
4041: }
4042:
1.144 matthew 4043: ######################################################
4044: ######################################################
4045:
1.56 matthew 4046: =pod
4047:
1.112 bowersj2 4048: =item * csv_print_select_table($r,$records,$d)
1.41 ng 4049:
4050: Prints a table to create associations between values and table columns.
1.144 matthew 4051:
1.41 ng 4052: $r is an Apache Request ref,
4053: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
1.174 matthew 4054: $d is an array of 2 element arrays (internal name, displayed name,defaultcol)
1.41 ng 4055:
4056: =cut
4057:
1.144 matthew 4058: ######################################################
4059: ######################################################
1.31 albertel 4060: sub csv_print_select_table {
4061: my ($r,$records,$d) = @_;
1.301 albertel 4062: my $i=0;
4063: my $samples = &get_samples($records,1);
1.144 matthew 4064: $r->print(&mt('Associate columns with student attributes.')."\n".
4065: '<table border="2"><tr>'.
4066: '<th>'.&mt('Attribute').'</th>'.
4067: '<th>'.&mt('Column').'</th></tr>'."\n");
1.31 albertel 4068: foreach (@$d) {
1.174 matthew 4069: my ($value,$display,$defaultcol)=@{ $_ };
1.31 albertel 4070: $r->print('<tr><td>'.$display.'</td>');
4071:
4072: $r->print('<td><select name=f'.$i.
1.32 matthew 4073: ' onchange="javascript:flip(this.form,'.$i.');">');
1.31 albertel 4074: $r->print('<option value="none"></option>');
1.301 albertel 4075: foreach (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
1.174 matthew 4076: $r->print('<option value="'.$_.'"'.
1.253 albertel 4077: ($_ eq $defaultcol ? ' selected="selected" ' : '').
1.174 matthew 4078: '>Column '.($_+1).'</option>');
1.31 albertel 4079: }
4080: $r->print('</select></td></tr>'."\n");
4081: $i++;
4082: }
4083: $i--;
4084: return $i;
4085: }
1.56 matthew 4086:
1.144 matthew 4087: ######################################################
4088: ######################################################
4089:
1.56 matthew 4090: =pod
1.31 albertel 4091:
1.112 bowersj2 4092: =item * csv_samples_select_table($r,$records,$d)
1.41 ng 4093:
4094: Prints a table of sample values from the upload and can make associate samples to internal names.
4095:
4096: $r is an Apache Request ref,
4097: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
4098: $d is an array of 2 element arrays (internal name, displayed name)
4099:
4100: =cut
4101:
1.144 matthew 4102: ######################################################
4103: ######################################################
1.31 albertel 4104: sub csv_samples_select_table {
4105: my ($r,$records,$d) = @_;
4106: my $i=0;
1.144 matthew 4107: #
1.301 albertel 4108: my $samples = &get_samples($records,3);
1.144 matthew 4109: $r->print('<table border=2><tr><th>'.
4110: &mt('Field').'</th><th>'.&mt('Samples').'</th></tr>');
1.301 albertel 4111:
4112: foreach my $key (sort(keys(%{ $samples->[0] }))) {
1.144 matthew 4113: $r->print('<tr><td><select name="f'.$i.'"'.
1.32 matthew 4114: ' onchange="javascript:flip(this.form,'.$i.');">');
1.301 albertel 4115: foreach my $option (@$d) {
4116: my ($value,$display,$defaultcol)=@{ $option };
1.174 matthew 4117: $r->print('<option value="'.$value.'"'.
1.253 albertel 4118: ($i eq $defaultcol ? ' selected="selected" ':'').'>'.
1.174 matthew 4119: $display.'</option>');
1.31 albertel 4120: }
4121: $r->print('</select></td><td>');
1.301 albertel 4122: foreach my $line (0..2) {
4123: if (defined($samples->[$line]{$key})) {
4124: $r->print($samples->[$line]{$key}."<br />\n");
4125: }
4126: }
1.31 albertel 4127: $r->print('</td></tr>');
4128: $i++;
4129: }
4130: $i--;
4131: return($i);
1.115 matthew 4132: }
4133:
1.144 matthew 4134: ######################################################
4135: ######################################################
4136:
1.115 matthew 4137: =pod
4138:
4139: =item clean_excel_name($name)
4140:
4141: Returns a replacement for $name which does not contain any illegal characters.
4142:
4143: =cut
4144:
1.144 matthew 4145: ######################################################
4146: ######################################################
1.115 matthew 4147: sub clean_excel_name {
4148: my ($name) = @_;
4149: $name =~ s/[:\*\?\/\\]//g;
4150: if (length($name) > 31) {
4151: $name = substr($name,0,31);
4152: }
4153: return $name;
1.25 albertel 4154: }
1.84 albertel 4155:
1.85 albertel 4156: =pod
4157:
1.112 bowersj2 4158: =item * check_if_partid_hidden($id,$symb,$udom,$uname)
1.85 albertel 4159:
4160: Returns either 1 or undef
4161:
4162: 1 if the part is to be hidden, undef if it is to be shown
4163:
4164: Arguments are:
4165:
4166: $id the id of the part to be checked
4167: $symb, optional the symb of the resource to check
4168: $udom, optional the domain of the user to check for
4169: $uname, optional the username of the user to check for
4170:
4171: =cut
1.84 albertel 4172:
4173: sub check_if_partid_hidden {
4174: my ($id,$symb,$udom,$uname) = @_;
1.133 albertel 4175: my $hiddenparts=&Apache::lonnet::EXT('resource.0.hiddenparts',
1.84 albertel 4176: $symb,$udom,$uname);
1.141 albertel 4177: my $truth=1;
4178: #if the string starts with !, then the list is the list to show not hide
4179: if ($hiddenparts=~s/^\s*!//) { $truth=undef; }
1.84 albertel 4180: my @hiddenlist=split(/,/,$hiddenparts);
4181: foreach my $checkid (@hiddenlist) {
1.141 albertel 4182: if ($checkid =~ /^\s*\Q$id\E\s*$/) { return $truth; }
1.84 albertel 4183: }
1.141 albertel 4184: return !$truth;
1.84 albertel 4185: }
1.127 matthew 4186:
1.138 matthew 4187:
4188: ############################################################
4189: ############################################################
4190:
4191: =pod
4192:
1.157 matthew 4193: =back
4194:
1.138 matthew 4195: =head1 cgi-bin script and graphing routines
4196:
1.157 matthew 4197: =over 4
4198:
1.138 matthew 4199: =item get_cgi_id
4200:
4201: Inputs: none
4202:
4203: Returns an id which can be used to pass environment variables
4204: to various cgi-bin scripts. These environment variables will
4205: be removed from the users environment after a given time by
4206: the routine &Apache::lonnet::transfer_profile_to_env.
4207:
4208: =cut
4209:
4210: ############################################################
4211: ############################################################
1.152 albertel 4212: my $uniq=0;
1.136 matthew 4213: sub get_cgi_id {
1.154 albertel 4214: $uniq=($uniq+1)%100000;
1.280 albertel 4215: return (time.'_'.$$.'_'.$uniq);
1.136 matthew 4216: }
4217:
1.127 matthew 4218: ############################################################
4219: ############################################################
4220:
4221: =pod
4222:
1.134 matthew 4223: =item DrawBarGraph
1.127 matthew 4224:
1.138 matthew 4225: Facilitates the plotting of data in a (stacked) bar graph.
4226: Puts plot definition data into the users environment in order for
4227: graph.png to plot it. Returns an <img> tag for the plot.
4228: The bars on the plot are labeled '1','2',...,'n'.
4229:
4230: Inputs:
4231:
4232: =over 4
4233:
4234: =item $Title: string, the title of the plot
4235:
4236: =item $xlabel: string, text describing the X-axis of the plot
4237:
4238: =item $ylabel: string, text describing the Y-axis of the plot
4239:
4240: =item $Max: scalar, the maximum Y value to use in the plot
4241: If $Max is < any data point, the graph will not be rendered.
4242:
1.140 matthew 4243: =item $colors: array ref holding the colors to be used for the data sets when
1.138 matthew 4244: they are plotted. If undefined, default values will be used.
4245:
1.178 matthew 4246: =item $labels: array ref holding the labels to use on the x-axis for the bars.
4247:
1.138 matthew 4248: =item @Values: An array of array references. Each array reference holds data
4249: to be plotted in a stacked bar chart.
4250:
1.239 matthew 4251: =item If the final element of @Values is a hash reference the key/value
4252: pairs will be added to the graph definition.
4253:
1.138 matthew 4254: =back
4255:
4256: Returns:
4257:
4258: An <img> tag which references graph.png and the appropriate identifying
4259: information for the plot.
4260:
1.127 matthew 4261: =cut
4262:
4263: ############################################################
4264: ############################################################
1.134 matthew 4265: sub DrawBarGraph {
1.178 matthew 4266: my ($Title,$xlabel,$ylabel,$Max,$colors,$labels,@Values)=@_;
1.134 matthew 4267: #
4268: if (! defined($colors)) {
4269: $colors = ['#33ff00',
4270: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
4271: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
4272: ];
4273: }
1.228 matthew 4274: my $extra_settings = {};
4275: if (ref($Values[-1]) eq 'HASH') {
4276: $extra_settings = pop(@Values);
4277: }
1.127 matthew 4278: #
1.136 matthew 4279: my $identifier = &get_cgi_id();
4280: my $id = 'cgi.'.$identifier;
1.129 matthew 4281: if (! @Values || ref($Values[0]) ne 'ARRAY') {
1.127 matthew 4282: return '';
4283: }
1.225 matthew 4284: #
4285: my @Labels;
4286: if (defined($labels)) {
4287: @Labels = @$labels;
4288: } else {
4289: for (my $i=0;$i<@{$Values[0]};$i++) {
4290: push (@Labels,$i+1);
4291: }
4292: }
4293: #
1.129 matthew 4294: my $NumBars = scalar(@{$Values[0]});
1.225 matthew 4295: if ($NumBars < scalar(@Labels)) { $NumBars = scalar(@Labels); }
1.129 matthew 4296: my %ValuesHash;
4297: my $NumSets=1;
4298: foreach my $array (@Values) {
4299: next if (! ref($array));
1.136 matthew 4300: $ValuesHash{$id.'.data.'.$NumSets++} =
1.132 matthew 4301: join(',',@$array);
1.129 matthew 4302: }
1.127 matthew 4303: #
1.136 matthew 4304: my ($height,$width,$xskip,$bar_width) = (200,120,1,15);
1.225 matthew 4305: if ($NumBars < 3) {
4306: $width = 120+$NumBars*32;
1.220 matthew 4307: $xskip = 1;
1.225 matthew 4308: $bar_width = 30;
4309: } elsif ($NumBars < 5) {
4310: $width = 120+$NumBars*20;
4311: $xskip = 1;
4312: $bar_width = 20;
1.220 matthew 4313: } elsif ($NumBars < 10) {
1.136 matthew 4314: $width = 120+$NumBars*15;
4315: $xskip = 1;
4316: $bar_width = 15;
4317: } elsif ($NumBars <= 25) {
4318: $width = 120+$NumBars*11;
4319: $xskip = 5;
4320: $bar_width = 8;
4321: } elsif ($NumBars <= 50) {
4322: $width = 120+$NumBars*8;
4323: $xskip = 5;
4324: $bar_width = 4;
4325: } else {
4326: $width = 120+$NumBars*8;
4327: $xskip = 5;
4328: $bar_width = 4;
4329: }
4330: #
1.137 matthew 4331: $Max = 1 if ($Max < 1);
4332: if ( int($Max) < $Max ) {
4333: $Max++;
4334: $Max = int($Max);
4335: }
1.127 matthew 4336: $Title = '' if (! defined($Title));
4337: $xlabel = '' if (! defined($xlabel));
4338: $ylabel = '' if (! defined($ylabel));
1.136 matthew 4339: $ValuesHash{$id.'.title'} = &Apache::lonnet::escape($Title);
4340: $ValuesHash{$id.'.xlabel'} = &Apache::lonnet::escape($xlabel);
4341: $ValuesHash{$id.'.ylabel'} = &Apache::lonnet::escape($ylabel);
1.137 matthew 4342: $ValuesHash{$id.'.y_max_value'} = $Max;
1.136 matthew 4343: $ValuesHash{$id.'.NumBars'} = $NumBars;
4344: $ValuesHash{$id.'.NumSets'} = $NumSets;
4345: $ValuesHash{$id.'.PlotType'} = 'bar';
4346: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
4347: $ValuesHash{$id.'.height'} = $height;
4348: $ValuesHash{$id.'.width'} = $width;
4349: $ValuesHash{$id.'.xskip'} = $xskip;
4350: $ValuesHash{$id.'.bar_width'} = $bar_width;
4351: $ValuesHash{$id.'.labels'} = join(',',@Labels);
1.127 matthew 4352: #
1.228 matthew 4353: # Deal with other parameters
4354: while (my ($key,$value) = each(%$extra_settings)) {
4355: $ValuesHash{$id.'.'.$key} = $value;
4356: }
4357: #
1.137 matthew 4358: &Apache::lonnet::appenv(%ValuesHash);
4359: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
4360: }
4361:
4362: ############################################################
4363: ############################################################
4364:
4365: =pod
4366:
4367: =item DrawXYGraph
4368:
1.138 matthew 4369: Facilitates the plotting of data in an XY graph.
4370: Puts plot definition data into the users environment in order for
4371: graph.png to plot it. Returns an <img> tag for the plot.
4372:
4373: Inputs:
4374:
4375: =over 4
4376:
4377: =item $Title: string, the title of the plot
4378:
4379: =item $xlabel: string, text describing the X-axis of the plot
4380:
4381: =item $ylabel: string, text describing the Y-axis of the plot
4382:
4383: =item $Max: scalar, the maximum Y value to use in the plot
4384: If $Max is < any data point, the graph will not be rendered.
4385:
4386: =item $colors: Array ref containing the hex color codes for the data to be
4387: plotted in. If undefined, default values will be used.
4388:
4389: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
4390:
4391: =item $Ydata: Array ref containing Array refs.
1.185 www 4392: Each of the contained arrays will be plotted as a separate curve.
1.138 matthew 4393:
4394: =item %Values: hash indicating or overriding any default values which are
4395: passed to graph.png.
4396: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
4397:
4398: =back
4399:
4400: Returns:
4401:
4402: An <img> tag which references graph.png and the appropriate identifying
4403: information for the plot.
4404:
1.137 matthew 4405: =cut
4406:
4407: ############################################################
4408: ############################################################
4409: sub DrawXYGraph {
4410: my ($Title,$xlabel,$ylabel,$Max,$colors,$Xlabels,$Ydata,%Values)=@_;
4411: #
4412: # Create the identifier for the graph
4413: my $identifier = &get_cgi_id();
4414: my $id = 'cgi.'.$identifier;
4415: #
4416: $Title = '' if (! defined($Title));
4417: $xlabel = '' if (! defined($xlabel));
4418: $ylabel = '' if (! defined($ylabel));
4419: my %ValuesHash =
4420: (
4421: $id.'.title' => &Apache::lonnet::escape($Title),
4422: $id.'.xlabel' => &Apache::lonnet::escape($xlabel),
4423: $id.'.ylabel' => &Apache::lonnet::escape($ylabel),
4424: $id.'.y_max_value'=> $Max,
4425: $id.'.labels' => join(',',@$Xlabels),
4426: $id.'.PlotType' => 'XY',
4427: );
4428: #
4429: if (defined($colors) && ref($colors) eq 'ARRAY') {
4430: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
4431: }
4432: #
4433: if (! ref($Ydata) || ref($Ydata) ne 'ARRAY') {
4434: return '';
4435: }
4436: my $NumSets=1;
1.138 matthew 4437: foreach my $array (@{$Ydata}){
1.137 matthew 4438: next if (! ref($array));
4439: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
4440: }
1.138 matthew 4441: $ValuesHash{$id.'.NumSets'} = $NumSets-1;
1.137 matthew 4442: #
4443: # Deal with other parameters
4444: while (my ($key,$value) = each(%Values)) {
4445: $ValuesHash{$id.'.'.$key} = $value;
1.127 matthew 4446: }
4447: #
1.136 matthew 4448: &Apache::lonnet::appenv(%ValuesHash);
4449: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
4450: }
4451:
4452: ############################################################
4453: ############################################################
4454:
4455: =pod
4456:
1.138 matthew 4457: =item DrawXYYGraph
4458:
4459: Facilitates the plotting of data in an XY graph with two Y axes.
4460: Puts plot definition data into the users environment in order for
4461: graph.png to plot it. Returns an <img> tag for the plot.
4462:
4463: Inputs:
4464:
4465: =over 4
4466:
4467: =item $Title: string, the title of the plot
4468:
4469: =item $xlabel: string, text describing the X-axis of the plot
4470:
4471: =item $ylabel: string, text describing the Y-axis of the plot
4472:
4473: =item $colors: Array ref containing the hex color codes for the data to be
4474: plotted in. If undefined, default values will be used.
4475:
4476: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
4477:
4478: =item $Ydata1: The first data set
4479:
4480: =item $Min1: The minimum value of the left Y-axis
4481:
4482: =item $Max1: The maximum value of the left Y-axis
4483:
4484: =item $Ydata2: The second data set
4485:
4486: =item $Min2: The minimum value of the right Y-axis
4487:
4488: =item $Max2: The maximum value of the left Y-axis
4489:
4490: =item %Values: hash indicating or overriding any default values which are
4491: passed to graph.png.
4492: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
4493:
4494: =back
4495:
4496: Returns:
4497:
4498: An <img> tag which references graph.png and the appropriate identifying
4499: information for the plot.
1.136 matthew 4500:
4501: =cut
4502:
4503: ############################################################
4504: ############################################################
1.137 matthew 4505: sub DrawXYYGraph {
4506: my ($Title,$xlabel,$ylabel,$colors,$Xlabels,$Ydata1,$Min1,$Max1,
4507: $Ydata2,$Min2,$Max2,%Values)=@_;
1.136 matthew 4508: #
4509: # Create the identifier for the graph
4510: my $identifier = &get_cgi_id();
4511: my $id = 'cgi.'.$identifier;
4512: #
4513: $Title = '' if (! defined($Title));
4514: $xlabel = '' if (! defined($xlabel));
4515: $ylabel = '' if (! defined($ylabel));
4516: my %ValuesHash =
4517: (
4518: $id.'.title' => &Apache::lonnet::escape($Title),
4519: $id.'.xlabel' => &Apache::lonnet::escape($xlabel),
4520: $id.'.ylabel' => &Apache::lonnet::escape($ylabel),
4521: $id.'.labels' => join(',',@$Xlabels),
4522: $id.'.PlotType' => 'XY',
4523: $id.'.NumSets' => 2,
1.137 matthew 4524: $id.'.two_axes' => 1,
4525: $id.'.y1_max_value' => $Max1,
4526: $id.'.y1_min_value' => $Min1,
4527: $id.'.y2_max_value' => $Max2,
4528: $id.'.y2_min_value' => $Min2,
1.136 matthew 4529: );
4530: #
1.137 matthew 4531: if (defined($colors) && ref($colors) eq 'ARRAY') {
4532: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
4533: }
4534: #
4535: if (! ref($Ydata1) || ref($Ydata1) ne 'ARRAY' ||
4536: ! ref($Ydata2) || ref($Ydata2) ne 'ARRAY'){
1.136 matthew 4537: return '';
4538: }
4539: my $NumSets=1;
1.137 matthew 4540: foreach my $array ($Ydata1,$Ydata2){
1.136 matthew 4541: next if (! ref($array));
4542: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
1.137 matthew 4543: }
4544: #
4545: # Deal with other parameters
4546: while (my ($key,$value) = each(%Values)) {
4547: $ValuesHash{$id.'.'.$key} = $value;
1.136 matthew 4548: }
4549: #
4550: &Apache::lonnet::appenv(%ValuesHash);
1.130 albertel 4551: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
1.139 matthew 4552: }
4553:
4554: ############################################################
4555: ############################################################
4556:
4557: =pod
4558:
1.157 matthew 4559: =back
4560:
1.139 matthew 4561: =head1 Statistics helper routines?
4562:
4563: Bad place for them but what the hell.
4564:
1.157 matthew 4565: =over 4
4566:
1.139 matthew 4567: =item &chartlink
4568:
4569: Returns a link to the chart for a specific student.
4570:
4571: Inputs:
4572:
4573: =over 4
4574:
4575: =item $linktext: The text of the link
4576:
4577: =item $sname: The students username
4578:
4579: =item $sdomain: The students domain
4580:
4581: =back
4582:
1.157 matthew 4583: =back
4584:
1.139 matthew 4585: =cut
4586:
4587: ############################################################
4588: ############################################################
4589: sub chartlink {
4590: my ($linktext, $sname, $sdomain) = @_;
4591: my $link = '<a href="/adm/statistics?reportSelected=student_assessment'.
1.219 albertel 4592: '&SelectedStudent='.&Apache::lonnet::escape($sname.':'.$sdomain).
4593: '&chartoutputmode='.HTML::Entities::encode('html, with all links').
1.139 matthew 4594: '">'.$linktext.'</a>';
1.153 matthew 4595: }
4596:
4597: #######################################################
4598: #######################################################
4599:
4600: =pod
4601:
4602: =head1 Course Environment Routines
1.157 matthew 4603:
4604: =over 4
1.153 matthew 4605:
4606: =item &restore_course_settings
4607:
4608: =item &store_course_settings
4609:
4610: Restores/Store indicated form parameters from the course environment.
4611: Will not overwrite existing values of the form parameters.
4612:
4613: Inputs:
4614: a scalar describing the data (e.g. 'chart', 'problem_analysis')
4615:
4616: a hash ref describing the data to be stored. For example:
4617:
4618: %Save_Parameters = ('Status' => 'scalar',
4619: 'chartoutputmode' => 'scalar',
4620: 'chartoutputdata' => 'scalar',
4621: 'Section' => 'array',
4622: 'StudentData' => 'array',
4623: 'Maps' => 'array');
4624:
4625: Returns: both routines return nothing
4626:
4627: =cut
4628:
4629: #######################################################
4630: #######################################################
4631: sub store_course_settings {
4632: # save to the environment
4633: # appenv the same items, just to be safe
1.258 albertel 4634: my $courseid = $env{'request.course.id'};
1.300 albertel 4635: my $udom = $env{'user.domain'};
4636: my $uname = $env{'user.name'};
1.153 matthew 4637: my ($prefix,$Settings) = @_;
4638: my %SaveHash;
4639: my %AppHash;
4640: while (my ($setting,$type) = each(%$Settings)) {
1.300 albertel 4641: my $basename = join('.','internal',$courseid,$prefix,$setting);
4642: my $envname = 'environment.'.$basename;
1.258 albertel 4643: if (exists($env{'form.'.$setting})) {
1.153 matthew 4644: # Save this value away
4645: if ($type eq 'scalar' &&
1.258 albertel 4646: (! exists($env{$envname}) ||
4647: $env{$envname} ne $env{'form.'.$setting})) {
4648: $SaveHash{$basename} = $env{'form.'.$setting};
4649: $AppHash{$envname} = $env{'form.'.$setting};
1.153 matthew 4650: } elsif ($type eq 'array') {
4651: my $stored_form;
1.258 albertel 4652: if (ref($env{'form.'.$setting})) {
1.153 matthew 4653: $stored_form = join(',',
4654: map {
4655: &Apache::lonnet::escape($_);
1.258 albertel 4656: } sort(@{$env{'form.'.$setting}}));
1.153 matthew 4657: } else {
4658: $stored_form =
1.258 albertel 4659: &Apache::lonnet::escape($env{'form.'.$setting});
1.153 matthew 4660: }
4661: # Determine if the array contents are the same.
1.258 albertel 4662: if ($stored_form ne $env{$envname}) {
1.153 matthew 4663: $SaveHash{$basename} = $stored_form;
4664: $AppHash{$envname} = $stored_form;
4665: }
4666: }
4667: }
4668: }
4669: my $put_result = &Apache::lonnet::put('environment',\%SaveHash,
1.300 albertel 4670: $udom,$uname);
1.153 matthew 4671: if ($put_result !~ /^(ok|delayed)/) {
4672: &Apache::lonnet::logthis('unable to save form parameters, '.
4673: 'got error:'.$put_result);
4674: }
4675: # Make sure these settings stick around in this session, too
4676: &Apache::lonnet::appenv(%AppHash);
4677: return;
4678: }
4679:
4680: sub restore_course_settings {
1.258 albertel 4681: my $courseid = $env{'request.course.id'};
1.153 matthew 4682: my ($prefix,$Settings) = @_;
4683: while (my ($setting,$type) = each(%$Settings)) {
1.258 albertel 4684: next if (exists($env{'form.'.$setting}));
1.300 albertel 4685: my $envname = 'environment.internal.'.$courseid.'.'.$prefix.
1.153 matthew 4686: '.'.$setting;
1.258 albertel 4687: if (exists($env{$envname})) {
1.153 matthew 4688: if ($type eq 'scalar') {
1.258 albertel 4689: $env{'form.'.$setting} = $env{$envname};
1.153 matthew 4690: } elsif ($type eq 'array') {
1.258 albertel 4691: $env{'form.'.$setting} = [
1.153 matthew 4692: map {
4693: &Apache::lonnet::unescape($_);
1.258 albertel 4694: } split(',',$env{$envname})
1.153 matthew 4695: ];
4696: }
4697: }
4698: }
1.127 matthew 4699: }
4700:
4701: ############################################################
4702: ############################################################
1.154 albertel 4703:
4704: sub propath {
4705: my ($udom,$uname)=@_;
4706: $udom=~s/\W//g;
4707: $uname=~s/\W//g;
4708: my $subdir=$uname.'__';
4709: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
4710: my $proname="$Apache::lonnet::perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
4711: return $proname;
1.156 albertel 4712: }
4713:
4714: sub icon {
4715: my ($file)=@_;
1.168 albertel 4716: my $curfext = (split(/\./,$file))[-1];
4717: my $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/unknown.gif';
1.156 albertel 4718: my $embstyle = &Apache::loncommon::fileembstyle($curfext);
1.168 albertel 4719: if (!(!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn')) {
4720: if (-e $Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
4721: $Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
4722: $curfext.".gif") {
4723: $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
4724: $curfext.".gif";
4725: }
4726: }
1.249 albertel 4727: return &lonhttpdurl($iconname);
1.154 albertel 4728: }
1.84 albertel 4729:
1.215 albertel 4730: sub lonhttpdurl {
4731: my ($url)=@_;
4732: my $lonhttpd_port=$Apache::lonnet::perlvar{'lonhttpdPort'};
4733: if (!defined($lonhttpd_port)) { $lonhttpd_port='8080'; }
4734: return 'http://'.$ENV{'SERVER_NAME'}.':'.$lonhttpd_port.$url;
4735: }
4736:
1.213 albertel 4737: sub connection_aborted {
4738: my ($r)=@_;
4739: $r->print(" ");$r->rflush();
4740: my $c = $r->connection;
4741: return $c->aborted();
4742: }
4743:
1.221 foxr 4744: # Escapes strings that may have embedded 's that will be put into
1.222 foxr 4745: # strings as 'strings'.
4746: sub escape_single {
1.221 foxr 4747: my ($input) = @_;
1.223 albertel 4748: $input =~ s/\\/\\\\/g; # Escape the \'s..(must be first)>
1.221 foxr 4749: $input =~ s/\'/\\\'/g; # Esacpe the 's....
4750: return $input;
4751: }
1.223 albertel 4752:
1.222 foxr 4753: # Same as escape_single, but escape's "'s This
4754: # can be used for "strings"
4755: sub escape_double {
4756: my ($input) = @_;
4757: $input =~ s/\\/\\\\/g; # Escape the /'s..(must be first)>
4758: $input =~ s/\"/\\\"/g; # Esacpe the "s....
4759: return $input;
4760: }
1.223 albertel 4761:
1.222 foxr 4762: # Escapes the last element of a full URL.
4763: sub escape_url {
4764: my ($url) = @_;
1.238 raeburn 4765: my @urlslices = split(/\//, $url,-1);
1.223 albertel 4766: my $lastitem = &Apache::lonnet::escape(pop(@urlslices));
4767: return join('/',@urlslices).'/'.$lastitem;
1.222 foxr 4768: }
1.41 ng 4769: =pod
4770:
4771: =back
4772:
1.112 bowersj2 4773: =cut
1.41 ng 4774:
1.112 bowersj2 4775: 1;
4776: __END__;
1.41 ng 4777:
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