Annotation of loncom/interface/loncommon.pm, revision 1.372
1.10 albertel 1: # The LearningOnline Network with CAPA
1.1 albertel 2: # a pile of common routines
1.10 albertel 3: #
1.372 ! albertel 4: # $Id: loncommon.pm,v 1.371 2006/05/12 15:53:10 www 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();
1.344 albertel 66: use Apache::lontexconvert();
1.369 www 67: use LONCAPA;
1.117 www 68:
1.22 www 69: my $readit;
70:
1.157 matthew 71: ##
72: ## Global Variables
73: ##
1.46 matthew 74:
1.20 www 75: # ----------------------------------------------- Filetypes/Languages/Copyright
1.12 harris41 76: my %language;
1.124 www 77: my %supported_language;
1.12 harris41 78: my %cprtag;
1.192 taceyjo1 79: my %scprtag;
1.351 www 80: my %fe; my %fd; my %fm;
1.41 ng 81: my %category_extensions;
1.12 harris41 82:
1.63 www 83: # ---------------------------------------------- Designs
84:
85: my %designhash;
86:
1.46 matthew 87: # ---------------------------------------------- Thesaurus variables
1.144 matthew 88: #
89: # %Keywords:
90: # A hash used by &keyword to determine if a word is considered a keyword.
91: # $thesaurus_db_file
92: # Scalar containing the full path to the thesaurus database.
1.46 matthew 93:
94: my %Keywords;
95: my $thesaurus_db_file;
96:
1.144 matthew 97: #
98: # Initialize values from language.tab, copyright.tab, filetypes.tab,
99: # thesaurus.tab, and filecategories.tab.
100: #
1.18 www 101: BEGIN {
1.46 matthew 102: # Variable initialization
103: $thesaurus_db_file = $Apache::lonnet::perlvar{'lonTabDir'}."/thesaurus.db";
104: #
1.22 www 105: unless ($readit) {
1.12 harris41 106: # ------------------------------------------------------------------- languages
107: {
1.158 raeburn 108: my $langtabfile = $Apache::lonnet::perlvar{'lonTabDir'}.
109: '/language.tab';
110: if ( open(my $fh,"<$langtabfile") ) {
1.356 albertel 111: while (my $line = <$fh>) {
112: next if ($line=~/^\#/);
113: chomp($line);
114: my ($key,$two,$country,$three,$enc,$val,$sup)=(split(/\t/,$line));
1.158 raeburn 115: $language{$key}=$val.' - '.$enc;
116: if ($sup) {
117: $supported_language{$key}=$sup;
118: }
119: }
120: close($fh);
121: }
1.12 harris41 122: }
123: # ------------------------------------------------------------------ copyrights
124: {
1.158 raeburn 125: my $copyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
126: '/copyright.tab';
127: if ( open (my $fh,"<$copyrightfile") ) {
1.356 albertel 128: while (my $line = <$fh>) {
129: next if ($line=~/^\#/);
130: chomp($line);
131: my ($key,$val)=(split(/\s+/,$line,2));
1.158 raeburn 132: $cprtag{$key}=$val;
133: }
134: close($fh);
135: }
1.12 harris41 136: }
1.351 www 137: # ----------------------------------------------------------- source copyrights
1.192 taceyjo1 138: {
139: my $sourcecopyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
140: '/source_copyright.tab';
141: if ( open (my $fh,"<$sourcecopyrightfile") ) {
1.356 albertel 142: while (my $line = <$fh>) {
143: next if ($line =~ /^\#/);
144: chomp($line);
145: my ($key,$val)=(split(/\s+/,$line,2));
1.192 taceyjo1 146: $scprtag{$key}=$val;
147: }
148: close($fh);
149: }
150: }
1.63 www 151:
152: # -------------------------------------------------------------- domain designs
153:
154: my $filename;
155: my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors';
156: opendir(DIR,$designdir);
157: while ($filename=readdir(DIR)) {
1.271 albertel 158: if ($filename!~/\.tab$/) { next; }
1.63 www 159: my ($domain)=($filename=~/^(\w+)\./);
1.271 albertel 160: {
161: my $designfile = $designdir.'/'.$filename;
162: if ( open (my $fh,"<$designfile") ) {
1.356 albertel 163: while (my $line = <$fh>) {
164: next if ($line =~ /^\#/);
165: chomp($line);
166: my ($key,$val)=(split(/\=/,$line));
1.271 albertel 167: if ($val) { $designhash{$domain.'.'.$key}=$val; }
168: }
169: close($fh);
170: }
171: }
1.63 www 172:
173: }
174: closedir(DIR);
175:
176:
1.15 harris41 177: # ------------------------------------------------------------- file categories
178: {
1.158 raeburn 179: my $categoryfile = $Apache::lonnet::perlvar{'lonTabDir'}.
180: '/filecategories.tab';
181: if ( open (my $fh,"<$categoryfile") ) {
1.356 albertel 182: while (my $line = <$fh>) {
183: next if ($line =~ /^\#/);
184: chomp($line);
185: my ($extension,$category)=(split(/\s+/,$line,2));
1.158 raeburn 186: push @{$category_extensions{lc($category)}},$extension;
187: }
188: close($fh);
189: }
190:
1.15 harris41 191: }
1.12 harris41 192: # ------------------------------------------------------------------ file types
193: {
1.158 raeburn 194: my $typesfile = $Apache::lonnet::perlvar{'lonTabDir'}.
195: '/filetypes.tab';
196: if ( open (my $fh,"<$typesfile") ) {
1.356 albertel 197: while (my $line = <$fh>) {
198: next if ($line =~ /^\#/);
199: chomp($line);
200: my ($ending,$emb,$mime,$descr)=split(/\s+/,$line,4);
1.158 raeburn 201: if ($descr ne '') {
202: $fe{$ending}=lc($emb);
203: $fd{$ending}=$descr;
1.351 www 204: if ($mime ne 'unk') { $fm{$ending}=$mime; }
1.158 raeburn 205: }
206: }
207: close($fh);
208: }
1.12 harris41 209: }
1.22 www 210: &Apache::lonnet::logthis(
1.46 matthew 211: "<font color=yellow>INFO: Read file types</font>");
1.22 www 212: $readit=1;
1.46 matthew 213: } # end of unless($readit)
1.32 matthew 214:
215: }
1.112 bowersj2 216:
1.42 matthew 217: ###############################################################
218: ## HTML and Javascript Helper Functions ##
219: ###############################################################
220:
221: =pod
222:
1.112 bowersj2 223: =head1 HTML and Javascript Functions
1.42 matthew 224:
1.112 bowersj2 225: =over 4
226:
227: =item * browser_and_searcher_javascript ()
228:
229: X<browsing, javascript>X<searching, javascript>Returns a string
230: containing javascript with two functions, C<openbrowser> and
231: C<opensearcher>. Returned string does not contain E<lt>scriptE<gt>
232: tags.
1.42 matthew 233:
1.112 bowersj2 234: =item * openbrowser(formname,elementname,only,omit) [javascript]
1.42 matthew 235:
236: inputs: formname, elementname, only, omit
237:
238: formname and elementname indicate the name of the html form and name of
239: the element that the results of the browsing selection are to be placed in.
240:
241: Specifying 'only' will restrict the browser to displaying only files
1.185 www 242: with the given extension. Can be a comma separated list.
1.42 matthew 243:
244: Specifying 'omit' will restrict the browser to NOT displaying files
1.185 www 245: with the given extension. Can be a comma separated list.
1.42 matthew 246:
1.112 bowersj2 247: =item * opensearcher(formname, elementname) [javascript]
1.42 matthew 248:
249: Inputs: formname, elementname
250:
251: formname and elementname specify the name of the html form and the name
252: of the element the selection from the search results will be placed in.
253:
254: =cut
255:
256: sub browser_and_searcher_javascript {
1.199 albertel 257: my ($mode)=@_;
258: if (!defined($mode)) { $mode='edit'; }
1.170 www 259: my $resurl=&lastresurl();
1.42 matthew 260: return <<END;
1.219 albertel 261: // <!-- BEGIN LON-CAPA Internal
1.50 matthew 262: var editbrowser = null;
1.135 albertel 263: function openbrowser(formname,elementname,only,omit,titleelement) {
1.170 www 264: var url = '$resurl/?';
1.42 matthew 265: if (editbrowser == null) {
266: url += 'launch=1&';
267: }
268: url += 'catalogmode=interactive&';
1.199 albertel 269: url += 'mode=$mode&';
1.42 matthew 270: url += 'form=' + formname + '&';
271: if (only != null) {
272: url += 'only=' + only + '&';
1.217 albertel 273: } else {
274: url += 'only=&';
275: }
1.42 matthew 276: if (omit != null) {
277: url += 'omit=' + omit + '&';
1.217 albertel 278: } else {
279: url += 'omit=&';
280: }
1.135 albertel 281: if (titleelement != null) {
282: url += 'titleelement=' + titleelement + '&';
1.217 albertel 283: } else {
284: url += 'titleelement=&';
285: }
1.42 matthew 286: url += 'element=' + elementname + '';
287: var title = 'Browser';
1.217 albertel 288: var options = 'scrollbars=1,resizable=1,menubar=1,location=1';
1.42 matthew 289: options += ',width=700,height=600';
290: editbrowser = open(url,title,options,'1');
291: editbrowser.focus();
292: }
293: var editsearcher;
1.135 albertel 294: function opensearcher(formname,elementname,titleelement) {
1.42 matthew 295: var url = '/adm/searchcat?';
296: if (editsearcher == null) {
297: url += 'launch=1&';
298: }
299: url += 'catalogmode=interactive&';
1.199 albertel 300: url += 'mode=$mode&';
1.42 matthew 301: url += 'form=' + formname + '&';
1.135 albertel 302: if (titleelement != null) {
303: url += 'titleelement=' + titleelement + '&';
1.217 albertel 304: } else {
305: url += 'titleelement=&';
306: }
1.42 matthew 307: url += 'element=' + elementname + '';
308: var title = 'Search';
309: var options = 'scrollbars=1,resizable=1,menubar=0';
310: options += ',width=700,height=600';
311: editsearcher = open(url,title,options,'1');
312: editsearcher.focus();
313: }
1.219 albertel 314: // END LON-CAPA Internal -->
1.42 matthew 315: END
1.170 www 316: }
317:
318: sub lastresurl {
1.258 albertel 319: if ($env{'environment.lastresurl'}) {
320: return $env{'environment.lastresurl'}
1.170 www 321: } else {
322: return '/res';
323: }
324: }
325:
326: sub storeresurl {
327: my $resurl=&Apache::lonnet::clutter(shift);
328: unless ($resurl=~/^\/res/) { return 0; }
329: $resurl=~s/\/$//;
330: &Apache::lonnet::put('environment',{'lastresurl' => $resurl});
331: &Apache::lonnet::appenv('environment.lastresurl' => $resurl);
332: return 1;
1.42 matthew 333: }
334:
1.74 www 335: sub studentbrowser_javascript {
1.111 www 336: unless (
1.258 albertel 337: (($env{'request.course.id'}) &&
1.302 albertel 338: (&Apache::lonnet::allowed('srm',$env{'request.course.id'})
339: || &Apache::lonnet::allowed('srm',$env{'request.course.id'}.
340: '/'.$env{'request.course.sec'})
341: ))
1.258 albertel 342: || ($env{'request.role'}=~/^(au|dc|su)/)
1.111 www 343: ) { return ''; }
1.74 www 344: return (<<'ENDSTDBRW');
345: <script type="text/javascript" language="Javascript" >
346: var stdeditbrowser;
1.111 www 347: function openstdbrowser(formname,uname,udom,roleflag) {
1.74 www 348: var url = '/adm/pickstudent?';
349: var filter;
350: eval('filter=document.'+formname+'.'+uname+'.value;');
351: if (filter != null) {
352: if (filter != '') {
353: url += 'filter='+filter+'&';
354: }
355: }
356: url += 'form=' + formname + '&unameelement='+uname+
357: '&udomelement='+udom;
1.111 www 358: if (roleflag) { url+="&roles=1"; }
1.102 www 359: var title = 'Student_Browser';
1.74 www 360: var options = 'scrollbars=1,resizable=1,menubar=0';
361: options += ',width=700,height=600';
362: stdeditbrowser = open(url,title,options,'1');
363: stdeditbrowser.focus();
364: }
365: </script>
366: ENDSTDBRW
367: }
1.42 matthew 368:
1.74 www 369: sub selectstudent_link {
1.111 www 370: my ($form,$unameele,$udomele)=@_;
1.258 albertel 371: if ($env{'request.course.id'}) {
1.302 albertel 372: if (!&Apache::lonnet::allowed('srm',$env{'request.course.id'})
373: && !&Apache::lonnet::allowed('srm',$env{'request.course.id'}.
374: '/'.$env{'request.course.sec'})) {
1.111 www 375: return '';
376: }
377: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
1.119 www 378: '","'.$udomele.'");'."'>".&mt('Select User')."</a>";
1.74 www 379: }
1.258 albertel 380: if ($env{'request.role'}=~/^(au|dc|su)/) {
1.111 www 381: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
1.119 www 382: '","'.$udomele.'",1);'."'>".&mt('Select User')."</a>";
1.111 www 383: }
384: return '';
1.91 www 385: }
386:
387: sub coursebrowser_javascript {
1.234 raeburn 388: my ($domainfilter)=@_;
1.128 albertel 389: return (<<ENDSTDBRW);
1.91 www 390: <script type="text/javascript" language="Javascript" >
391: var stdeditbrowser;
1.293 raeburn 392: function opencrsbrowser(formname,uname,udom,desc,extra_element,multflag) {
1.91 www 393: var url = '/adm/pickcourse?';
394: var filter;
395: if (filter != null) {
396: if (filter != '') {
397: url += 'filter='+filter+'&';
398: }
399: }
1.128 albertel 400: var domainfilter='$domainfilter';
401: if (domainfilter != null) {
402: if (domainfilter != '') {
403: url += 'domainfilter='+domainfilter+'&';
404: }
405: }
1.91 www 406: url += 'form=' + formname + '&cnumelement='+uname+
1.187 albertel 407: '&cdomelement='+udom+
408: '&cnameelement='+desc;
1.234 raeburn 409: if (extra_element !=null && extra_element != '' && formname == 'rolechoice') {
410: url += '&roleelement='+extra_element;
411: if (domainfilter == null || domainfilter == '') {
412: url += '&domainfilter='+extra_element;
413: }
1.230 raeburn 414: }
1.293 raeburn 415: if (multflag !=null && multflag != '') {
416: url += '&multiple='+multflag;
417: }
1.102 www 418: var title = 'Course_Browser';
1.91 www 419: var options = 'scrollbars=1,resizable=1,menubar=0';
420: options += ',width=700,height=600';
421: stdeditbrowser = open(url,title,options,'1');
422: stdeditbrowser.focus();
423: }
424: </script>
425: ENDSTDBRW
426: }
427:
428: sub selectcourse_link {
1.293 raeburn 429: my ($form,$unameele,$udomele,$desc,$extra_element,$multflag)=@_;
1.91 www 430: return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele.
1.293 raeburn 431: '","'.$udomele.'","'.$desc.'","'.$extra_element.'","'.$multflag.'");'."'>".&mt('Select Course')."</a>";
1.74 www 432: }
1.42 matthew 433:
1.273 raeburn 434: sub check_uncheck_jscript {
435: my $jscript = <<"ENDSCRT";
436: function checkAll(field) {
437: if (field.length > 0) {
438: for (i = 0; i < field.length; i++) {
439: field[i].checked = true ;
440: }
441: } else {
442: field.checked = true
443: }
444: }
445:
446: function uncheckAll(field) {
447: if (field.length > 0) {
448: for (i = 0; i < field.length; i++) {
449: field[i].checked = false ;
450: } } else {
451: field.checked = false ;
452: }
453: }
454: ENDSCRT
455: return $jscript;
456: }
457:
458:
1.42 matthew 459: =pod
1.36 matthew 460:
1.112 bowersj2 461: =item * linked_select_forms(...)
1.36 matthew 462:
463: linked_select_forms returns a string containing a <script></script> block
464: and html for two <select> menus. The select menus will be linked in that
465: changing the value of the first menu will result in new values being placed
466: in the second menu. The values in the select menu will appear in alphabetical
467: order.
468:
469: linked_select_forms takes the following ordered inputs:
470:
471: =over 4
472:
1.112 bowersj2 473: =item * $formname, the name of the <form> tag
1.36 matthew 474:
1.112 bowersj2 475: =item * $middletext, the text which appears between the <select> tags
1.36 matthew 476:
1.112 bowersj2 477: =item * $firstdefault, the default value for the first menu
1.36 matthew 478:
1.112 bowersj2 479: =item * $firstselectname, the name of the first <select> tag
1.36 matthew 480:
1.112 bowersj2 481: =item * $secondselectname, the name of the second <select> tag
1.36 matthew 482:
1.112 bowersj2 483: =item * $hashref, a reference to a hash containing the data for the menus.
1.36 matthew 484:
1.41 ng 485: =back
486:
1.36 matthew 487: Below is an example of such a hash. Only the 'text', 'default', and
488: 'select2' keys must appear as stated. keys(%menu) are the possible
489: values for the first select menu. The text that coincides with the
1.41 ng 490: first menu value is given in $menu{$choice1}->{'text'}. The values
1.36 matthew 491: and text for the second menu are given in the hash pointed to by
492: $menu{$choice1}->{'select2'}.
493:
1.112 bowersj2 494: my %menu = ( A1 => { text =>"Choice A1" ,
495: default => "B3",
496: select2 => {
497: B1 => "Choice B1",
498: B2 => "Choice B2",
499: B3 => "Choice B3",
500: B4 => "Choice B4"
501: }
502: },
503: A2 => { text =>"Choice A2" ,
504: default => "C2",
505: select2 => {
506: C1 => "Choice C1",
507: C2 => "Choice C2",
508: C3 => "Choice C3"
509: }
510: },
511: A3 => { text =>"Choice A3" ,
512: default => "D6",
513: select2 => {
514: D1 => "Choice D1",
515: D2 => "Choice D2",
516: D3 => "Choice D3",
517: D4 => "Choice D4",
518: D5 => "Choice D5",
519: D6 => "Choice D6",
520: D7 => "Choice D7"
521: }
522: }
523: );
1.36 matthew 524:
525: =cut
526:
527: sub linked_select_forms {
528: my ($formname,
529: $middletext,
530: $firstdefault,
531: $firstselectname,
532: $secondselectname,
533: $hashref
534: ) = @_;
535: my $second = "document.$formname.$secondselectname";
536: my $first = "document.$formname.$firstselectname";
537: # output the javascript to do the changing
538: my $result = '';
1.219 albertel 539: $result.="<script type=\"text/javascript\">\n";
1.36 matthew 540: $result.="var select2data = new Object();\n";
541: $" = '","';
542: my $debug = '';
543: foreach my $s1 (sort(keys(%$hashref))) {
544: $result.="select2data.d_$s1 = new Object();\n";
545: $result.="select2data.d_$s1.def = new String('".
546: $hashref->{$s1}->{'default'}."');\n";
547: $result.="select2data.d_$s1.values = new Array(";
548: my @s2values = sort(keys( %{ $hashref->{$s1}->{'select2'} } ));
549: $result.="\"@s2values\");\n";
550: $result.="select2data.d_$s1.texts = new Array(";
551: my @s2texts;
552: foreach my $value (@s2values) {
553: push @s2texts, $hashref->{$s1}->{'select2'}->{$value};
554: }
555: $result.="\"@s2texts\");\n";
556: }
557: $"=' ';
558: $result.= <<"END";
559:
560: function select1_changed() {
561: // Determine new choice
562: var newvalue = "d_" + $first.value;
563: // update select2
564: var values = select2data[newvalue].values;
565: var texts = select2data[newvalue].texts;
566: var select2def = select2data[newvalue].def;
567: var i;
568: // out with the old
569: for (i = 0; i < $second.options.length; i++) {
570: $second.options[i] = null;
571: }
572: // in with the nuclear
573: for (i=0;i<values.length; i++) {
574: $second.options[i] = new Option(values[i]);
1.143 matthew 575: $second.options[i].value = values[i];
1.36 matthew 576: $second.options[i].text = texts[i];
577: if (values[i] == select2def) {
578: $second.options[i].selected = true;
579: }
580: }
581: }
582: </script>
583: END
584: # output the initial values for the selection lists
585: $result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed()\">\n";
586: foreach my $value (sort(keys(%$hashref))) {
587: $result.=" <option value=\"$value\" ";
1.253 albertel 588: $result.=" selected=\"selected\" " if ($value eq $firstdefault);
1.119 www 589: $result.=">".&mt($hashref->{$value}->{'text'})."</option>\n";
1.36 matthew 590: }
591: $result .= "</select>\n";
592: my %select2 = %{$hashref->{$firstdefault}->{'select2'}};
593: $result .= $middletext;
594: $result .= "<select size=\"1\" name=\"$secondselectname\">\n";
595: my $seconddefault = $hashref->{$firstdefault}->{'default'};
596: foreach my $value (sort(keys(%select2))) {
597: $result.=" <option value=\"$value\" ";
1.253 albertel 598: $result.=" selected=\"selected\" " if ($value eq $seconddefault);
1.119 www 599: $result.=">".&mt($select2{$value})."</option>\n";
1.36 matthew 600: }
601: $result .= "</select>\n";
602: # return $debug;
603: return $result;
604: } # end of sub linked_select_forms {
605:
1.45 matthew 606: =pod
1.44 bowersj2 607:
1.112 bowersj2 608: =item * help_open_topic($topic, $text, $stayOnPage, $width, $height)
1.44 bowersj2 609:
1.112 bowersj2 610: Returns a string corresponding to an HTML link to the given help
611: $topic, where $topic corresponds to the name of a .tex file in
612: /home/httpd/html/adm/help/tex, with underscores replaced by
613: spaces.
614:
615: $text will optionally be linked to the same topic, allowing you to
616: link text in addition to the graphic. If you do not want to link
617: text, but wish to specify one of the later parameters, pass an
618: empty string.
619:
620: $stayOnPage is a value that will be interpreted as a boolean. If true,
621: the link will not open a new window. If false, the link will open
622: a new window using Javascript. (Default is false.)
623:
624: $width and $height are optional numerical parameters that will
625: override the width and height of the popped up window, which may
626: be useful for certain help topics with big pictures included.
1.44 bowersj2 627:
628: =cut
629:
630: sub help_open_topic {
1.48 bowersj2 631: my ($topic, $text, $stayOnPage, $width, $height) = @_;
632: $text = "" if (not defined $text);
1.44 bowersj2 633: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 634: if ($env{'browser.interface'} eq 'textual' ||
635: $env{'environment.remote'} eq 'off' ) {
1.79 www 636: $stayOnPage=1;
637: }
1.44 bowersj2 638: $width = 350 if (not defined $width);
639: $height = 400 if (not defined $height);
640: my $filename = $topic;
641: $filename =~ s/ /_/g;
642:
1.48 bowersj2 643: my $template = "";
644: my $link;
1.159 www 645:
646: $topic=~s/\W/\_/g;
1.44 bowersj2 647:
648: if (!$stayOnPage)
649: {
1.72 bowersj2 650: $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
1.44 bowersj2 651: }
652: else
653: {
1.48 bowersj2 654: $link = "/adm/help/${filename}.hlp";
655: }
656:
657: # Add the text
658: if ($text ne "")
659: {
1.77 www 660: $template .=
661: "<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>".
1.78 www 662: "<td bgcolor='#5555FF'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.48 bowersj2 663: }
664:
665: # Add the graphic
1.179 matthew 666: my $title = &mt('Online Help');
1.215 albertel 667: my $helpicon=&lonhttpdurl("/adm/help/gif/smallHelp.gif");
1.48 bowersj2 668: $template .= <<"ENDTEMPLATE";
1.218 albertel 669: <a href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help: $topic)" /></a>
1.44 bowersj2 670: ENDTEMPLATE
1.78 www 671: if ($text ne '') { $template.='</td></tr></table>' };
1.44 bowersj2 672: return $template;
673:
1.106 bowersj2 674: }
675:
676: # This is a quicky function for Latex cheatsheet editing, since it
677: # appears in at least four places
678: sub helpLatexCheatsheet {
679: my $other = shift;
680: my $addOther = '';
681: if ($other) {
682: $addOther = Apache::loncommon::help_open_topic($other, shift,
683: undef, undef, 600) .
684: '</td><td>';
685: }
686: return '<table><tr><td>'.
687: $addOther .
688: &Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols',
689: undef,undef,600)
690: .'</td><td>'.
691: &Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols',
692: undef,undef,600)
693: .'</td></tr></table>';
1.172 www 694: }
695:
1.193 raeburn 696: sub help_open_menu {
697: my ($color,$topic,$component_help,$function,$faq,$bug,$stayOnPage,$width,$height,$text) = @_;
698: $text = "" if (not defined $text);
699: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 700: if ($env{'browser.interface'} eq 'textual' ||
701: $env{'environment.remote'} eq 'off' ) {
1.193 raeburn 702: $stayOnPage=1;
703: }
704: $width = 620 if (not defined $width);
705: $height = 600 if (not defined $height);
706: my $link='';
1.201 raeburn 707: my $title = &mt('Get help');
1.193 raeburn 708: my $origurl = $ENV{'REQUEST_URI'};
1.227 albertel 709: $origurl=~s|^/~|/priv/|;
1.193 raeburn 710: my $timestamp = time;
1.356 albertel 711: foreach my $datum (\$color,\$function,\$topic,\$component_help,\$faq,
712: \$bug,\$origurl) {
1.369 www 713: $$datum = &escape($$datum);
1.193 raeburn 714: }
1.195 albertel 715: if (!$stayOnPage) {
1.193 raeburn 716: $link = "javascript:helpMenu('open')";
1.195 albertel 717: } else {
1.193 raeburn 718: $link = "javascript:helpMenu('display')";
719: }
1.198 raeburn 720: 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 721: 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 722: my $template;
723: if ($text ne "") {
724: $template .=
1.265 albertel 725: "<table bgcolor='#CC3300' cellspacing='1' cellpadding='1' border='0'><tr>".
726: "<td bgcolor='#CC6600'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.196 albertel 727: }
1.261 albertel 728: my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
1.215 albertel 729: my $helpicon=&lonhttpdurl("/adm/lonIcons/helpgateway.gif");
1.331 albertel 730: my $start_page =
731: &Apache::loncommon::start_page('Help Menu', undef,
732: {'frameset' => 1,
733: 'js_ready' => 1,
734: 'add_entries' => {
735: 'border' => '0',
736: 'rows' => "105,*",},});
737: my $end_page =
738: &Apache::loncommon::end_page({'frameset' => 1,
739: 'js_ready' => 1,});
740:
1.196 albertel 741: $template .= <<"ENDTEMPLATE";
1.219 albertel 742: <script type="text/javascript">
1.253 albertel 743: // <!-- BEGIN LON-CAPA Internal
744: // <![CDATA[
1.243 raeburn 745: function helpMenu(target) {
746: var caller = this;
747: if (target == 'open') {
748: var newWindow = null;
749: try {
1.262 albertel 750: newWindow = window.open($nothing,"helpmenu","HEIGHT=$height,WIDTH=$width,resizable=yes,scrollbars=yes" )
1.243 raeburn 751: }
752: catch(error) {
753: writeHelp(caller);
754: return;
755: }
756: if (newWindow) {
757: caller = newWindow;
758: }
1.193 raeburn 759: }
1.243 raeburn 760: writeHelp(caller);
761: return;
762: }
763: function writeHelp(caller) {
1.331 albertel 764: caller.document.writeln('$start_page<frame name="bannerframe" src="$banner_link" /><frame name="bodyframe" src="$details_link" /> $end_page')
1.243 raeburn 765: caller.document.close()
766: caller.focus()
1.193 raeburn 767: }
1.253 albertel 768: // ]]>
1.219 albertel 769: // END LON-CAPA Internal -->
1.193 raeburn 770: </script>
1.218 albertel 771: <a href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help Menu)" /></a>
1.193 raeburn 772: ENDTEMPLATE
1.203 albertel 773: if ($component_help) {
774: if (!$text) {
775: $template=&help_open_topic($component_help,undef,$stayOnPage,
776: $width,$height).' '.$template;
777: } else {
778: my $help_text;
1.369 www 779: $help_text=&unescape($topic);
1.203 albertel 780: $template='<table><tr><td>'.
781: &help_open_topic($component_help,$help_text,$stayOnPage,
782: $width,$height).'</td><td>'.$template.
783: '</td></tr></table>';
784: }
785: }
1.196 albertel 786: if ($text ne '') { $template.='</td></tr></table>' };
1.193 raeburn 787: return $template;
788: }
789:
1.172 www 790: sub help_open_bug {
791: my ($topic, $text, $stayOnPage, $width, $height) = @_;
1.258 albertel 792: unless ($env{'user.adv'}) { return ''; }
1.172 www 793: unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }
794: $text = "" if (not defined $text);
795: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 796: if ($env{'browser.interface'} eq 'textual' ||
797: $env{'environment.remote'} eq 'off' ) {
1.172 www 798: $stayOnPage=1;
799: }
1.184 albertel 800: $width = 600 if (not defined $width);
801: $height = 600 if (not defined $height);
1.172 www 802:
803: $topic=~s/\W+/\+/g;
804: my $link='';
805: my $template='';
806: my $url=$Apache::lonnet::perlvar{'BugzillaHost'}.'enter_bug.cgi?product=LON-CAPA&bug_file_loc='.
1.369 www 807: &escape($ENV{'REQUEST_URI'}).'&component='.$topic;
1.172 www 808: if (!$stayOnPage)
809: {
810: $link = "javascript:void(open('$url', 'Bugzilla', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
811: }
812: else
813: {
814: $link = $url;
815: }
816: # Add the text
817: if ($text ne "")
818: {
819: $template .=
820: "<table bgcolor='#AA3333' cellspacing='1' cellpadding='1' border='0'><tr>".
821: "<td bgcolor='#FF5555'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
822: }
823:
824: # Add the graphic
1.179 matthew 825: my $title = &mt('Report a Bug');
1.215 albertel 826: my $bugicon=&lonhttpdurl("/adm/lonMisc/smallBug.gif");
1.172 www 827: $template .= <<"ENDTEMPLATE";
1.218 albertel 828: <a href="$link" title="$title"><img src="$bugicon" border="0" alt="(Bug: $topic)" /></a>
1.172 www 829: ENDTEMPLATE
830: if ($text ne '') { $template.='</td></tr></table>' };
831: return $template;
832:
833: }
834:
835: sub help_open_faq {
836: my ($topic, $text, $stayOnPage, $width, $height) = @_;
1.258 albertel 837: unless ($env{'user.adv'}) { return ''; }
1.172 www 838: unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }
839: $text = "" if (not defined $text);
840: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 841: if ($env{'browser.interface'} eq 'textual' ||
842: $env{'environment.remote'} eq 'off' ) {
1.172 www 843: $stayOnPage=1;
844: }
845: $width = 350 if (not defined $width);
846: $height = 400 if (not defined $height);
847:
848: $topic=~s/\W+/\+/g;
849: my $link='';
850: my $template='';
851: my $url=$Apache::lonnet::perlvar{'FAQHost'}.'/fom/cache/'.$topic.'.html';
852: if (!$stayOnPage)
853: {
854: $link = "javascript:void(open('$url', 'FAQ-O-Matic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
855: }
856: else
857: {
858: $link = $url;
859: }
860:
861: # Add the text
862: if ($text ne "")
863: {
864: $template .=
1.173 www 865: "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
866: "<td bgcolor='#448844'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.172 www 867: }
868:
869: # Add the graphic
1.179 matthew 870: my $title = &mt('View the FAQ');
1.215 albertel 871: my $faqicon=&lonhttpdurl("/adm/lonMisc/smallFAQ.gif");
1.172 www 872: $template .= <<"ENDTEMPLATE";
1.218 albertel 873: <a href="$link" title="$title"><img src="$faqicon" border="0" alt="(FAQ: $topic)" /></a>
1.172 www 874: ENDTEMPLATE
875: if ($text ne '') { $template.='</td></tr></table>' };
876: return $template;
877:
1.44 bowersj2 878: }
1.37 matthew 879:
1.180 matthew 880: ###############################################################
881: ###############################################################
882:
1.45 matthew 883: =pod
884:
1.256 matthew 885: =item * change_content_javascript():
886:
887: This and the next function allow you to create small sections of an
888: otherwise static HTML page that you can update on the fly with
889: Javascript, even in Netscape 4.
890:
891: The Javascript fragment returned by this function (no E<lt>scriptE<gt> tag)
892: must be written to the HTML page once. It will prove the Javascript
893: function "change(name, content)". Calling the change function with the
894: name of the section
895: you want to update, matching the name passed to C<changable_area>, and
896: the new content you want to put in there, will put the content into
897: that area.
898:
899: B<Note>: Netscape 4 only reserves enough space for the changable area
900: to contain room for the original contents. You need to "make space"
901: for whatever changes you wish to make, and be B<sure> to check your
902: code in Netscape 4. This feature in Netscape 4 is B<not> powerful;
903: it's adequate for updating a one-line status display, but little more.
904: This script will set the space to 100% width, so you only need to
905: worry about height in Netscape 4.
906:
907: Modern browsers are much less limiting, and if you can commit to the
908: user not using Netscape 4, this feature may be used freely with
909: pretty much any HTML.
910:
911: =cut
912:
913: sub change_content_javascript {
914: # If we're on Netscape 4, we need to use Layer-based code
1.258 albertel 915: if ($env{'browser.type'} eq 'netscape' &&
916: $env{'browser.version'} =~ /^4\./) {
1.256 matthew 917: return (<<NETSCAPE4);
918: function change(name, content) {
919: doc = document.layers[name+"___escape"].layers[0].document;
920: doc.open();
921: doc.write(content);
922: doc.close();
923: }
924: NETSCAPE4
925: } else {
926: # Otherwise, we need to use semi-standards-compliant code
927: # (technically, "innerHTML" isn't standard but the equivalent
928: # is really scary, and every useful browser supports it
929: return (<<DOMBASED);
930: function change(name, content) {
931: element = document.getElementById(name);
932: element.innerHTML = content;
933: }
934: DOMBASED
935: }
936: }
937:
938: =pod
939:
940: =item * changable_area($name, $origContent):
941:
942: This provides a "changable area" that can be modified on the fly via
943: the Javascript code provided in C<change_content_javascript>. $name is
944: the name you will use to reference the area later; do not repeat the
945: same name on a given HTML page more then once. $origContent is what
946: the area will originally contain, which can be left blank.
947:
948: =cut
949:
950: sub changable_area {
951: my ($name, $origContent) = @_;
952:
1.258 albertel 953: if ($env{'browser.type'} eq 'netscape' &&
954: $env{'browser.version'} =~ /^4\./) {
1.256 matthew 955: # If this is netscape 4, we need to use the Layer tag
956: return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>";
957: } else {
958: return "<span id='$name'>$origContent</span>";
959: }
960: }
961:
962: =pod
963:
964: =back
965:
966: =head1 Excel and CSV file utility routines
967:
968: =over 4
969:
970: =cut
971:
972: ###############################################################
973: ###############################################################
974:
975: =pod
976:
1.112 bowersj2 977: =item * csv_translate($text)
1.37 matthew 978:
1.185 www 979: Translate $text to allow it to be output as a 'comma separated values'
1.37 matthew 980: format.
981:
982: =cut
983:
1.180 matthew 984: ###############################################################
985: ###############################################################
1.37 matthew 986: sub csv_translate {
987: my $text = shift;
988: $text =~ s/\"/\"\"/g;
1.209 albertel 989: $text =~ s/\n/ /g;
1.37 matthew 990: return $text;
991: }
1.180 matthew 992:
993: ###############################################################
994: ###############################################################
995:
996: =pod
997:
998: =item * define_excel_formats
999:
1000: Define some commonly used Excel cell formats.
1001:
1002: Currently supported formats:
1003:
1004: =over 4
1005:
1006: =item header
1007:
1008: =item bold
1009:
1010: =item h1
1011:
1012: =item h2
1013:
1014: =item h3
1015:
1.256 matthew 1016: =item h4
1017:
1018: =item i
1019:
1.180 matthew 1020: =item date
1021:
1022: =back
1023:
1024: Inputs: $workbook
1025:
1026: Returns: $format, a hash reference.
1027:
1028: =cut
1029:
1030: ###############################################################
1031: ###############################################################
1032: sub define_excel_formats {
1033: my ($workbook) = @_;
1034: my $format;
1035: $format->{'header'} = $workbook->add_format(bold => 1,
1036: bottom => 1,
1037: align => 'center');
1038: $format->{'bold'} = $workbook->add_format(bold=>1);
1039: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
1040: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
1041: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
1.255 matthew 1042: $format->{'h4'} = $workbook->add_format(bold=>1, size=>12);
1.246 matthew 1043: $format->{'i'} = $workbook->add_format(italic=>1);
1.180 matthew 1044: $format->{'date'} = $workbook->add_format(num_format=>
1.207 matthew 1045: 'mm/dd/yyyy hh:mm:ss');
1.180 matthew 1046: return $format;
1047: }
1048:
1049: ###############################################################
1050: ###############################################################
1.113 bowersj2 1051:
1052: =pod
1053:
1.256 matthew 1054: =item * create_workbook
1.255 matthew 1055:
1056: Create an Excel worksheet. If it fails, output message on the
1057: request object and return undefs.
1058:
1059: Inputs: Apache request object
1060:
1061: Returns (undef) on failure,
1062: Excel worksheet object, scalar with filename, and formats
1063: from &Apache::loncommon::define_excel_formats on success
1064:
1065: =cut
1066:
1067: ###############################################################
1068: ###############################################################
1069: sub create_workbook {
1070: my ($r) = @_;
1071: #
1072: # Create the excel spreadsheet
1073: my $filename = '/prtspool/'.
1.258 albertel 1074: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1.255 matthew 1075: time.'_'.rand(1000000000).'.xls';
1076: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1077: if (! defined($workbook)) {
1078: $r->log_error("Error creating excel spreadsheet $filename: $!");
1079: $r->print('<p>'.&mt("Unable to create new Excel file. ".
1080: "This error has been logged. ".
1081: "Please alert your LON-CAPA administrator").
1082: '</p>');
1083: return (undef);
1084: }
1085: #
1086: $workbook->set_tempdir('/home/httpd/perl/tmp');
1087: #
1088: my $format = &Apache::loncommon::define_excel_formats($workbook);
1089: return ($workbook,$filename,$format);
1090: }
1091:
1092: ###############################################################
1093: ###############################################################
1094:
1095: =pod
1096:
1.256 matthew 1097: =item * create_text_file
1.113 bowersj2 1098:
1.256 matthew 1099: Create a file to write to and eventually make available to the usre.
1100: If file creation fails, outputs an error message on the request object and
1101: return undefs.
1.113 bowersj2 1102:
1.256 matthew 1103: Inputs: Apache request object, and file suffix
1.113 bowersj2 1104:
1.256 matthew 1105: Returns (undef) on failure,
1106: Filehandle and filename on success.
1.113 bowersj2 1107:
1108: =cut
1109:
1.256 matthew 1110: ###############################################################
1111: ###############################################################
1112: sub create_text_file {
1113: my ($r,$suffix) = @_;
1114: if (! defined($suffix)) { $suffix = 'txt'; };
1115: my $fh;
1116: my $filename = '/prtspool/'.
1.258 albertel 1117: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1.256 matthew 1118: time.'_'.rand(1000000000).'.'.$suffix;
1119: $fh = Apache::File->new('>/home/httpd'.$filename);
1120: if (! defined($fh)) {
1121: $r->log_error("Couldn't open $filename for output $!");
1122: $r->print("Problems occured in creating the output file. ".
1123: "This error has been logged. ".
1124: "Please alert your LON-CAPA administrator.");
1.113 bowersj2 1125: }
1.256 matthew 1126: return ($fh,$filename)
1.113 bowersj2 1127: }
1128:
1129:
1.256 matthew 1130: =pod
1.113 bowersj2 1131:
1132: =back
1133:
1134: =cut
1.37 matthew 1135:
1136: ###############################################################
1.33 matthew 1137: ## Home server <option> list generating code ##
1138: ###############################################################
1.35 matthew 1139:
1.45 matthew 1140: =pod
1141:
1.112 bowersj2 1142: =head1 Home Server option list generating code
1143:
1144: =over 4
1145:
1146: =item * get_domains()
1.35 matthew 1147:
1148: Returns an array containing each of the domains listed in the hosts.tab
1149: file.
1150:
1151: =cut
1152:
1153: #-------------------------------------------
1.34 matthew 1154: sub get_domains {
1155: # The code below was stolen from "The Perl Cookbook", p 102, 1st ed.
1156: my @domains;
1157: my %seen;
1.356 albertel 1158: foreach my $dom (sort(values(%Apache::lonnet::hostdom))) {
1159: push(@domains,$dom) unless $seen{$dom}++;
1.34 matthew 1160: }
1161: return @domains;
1162: }
1.88 www 1163:
1.169 www 1164: # ------------------------------------------
1165:
1166: sub domain_select {
1167: my ($name,$value,$multiple)=@_;
1168: my %domains=map {
1169: $_ => $_.' '.$Apache::lonnet::domaindescription{$_}
1170: } &get_domains;
1171: if ($multiple) {
1172: $domains{''}=&mt('Any domain');
1.287 albertel 1173: return &multiple_select_form($name,$value,4,\%domains);
1.169 www 1174: } else {
1175: return &select_form($name,$value,%domains);
1176: }
1177: }
1178:
1.282 albertel 1179: #-------------------------------------------
1180:
1181: =pod
1182:
1.287 albertel 1183: =item * multiple_select_form($name,$value,$size,$hash,$order)
1.282 albertel 1184:
1185: Returns a string containing a <select> element int multiple mode
1186:
1187:
1188: Args:
1189: $name - name of the <select> element
1190: $value - sclara or array ref of values that should already be selected
1191: $size - number of rows long the select element is
1.283 albertel 1192: $hash - the elements should be 'option' => 'shown text'
1.282 albertel 1193: (shown text should already have been &mt())
1.284 albertel 1194: $order - (optional) array ref of the order to show the elments in
1.283 albertel 1195:
1.282 albertel 1196: =cut
1197:
1198: #-------------------------------------------
1.169 www 1199: sub multiple_select_form {
1.284 albertel 1200: my ($name,$value,$size,$hash,$order)=@_;
1.169 www 1201: my %selected = map { $_ => 1 } ref($value)?@{$value}:($value);
1202: my $output='';
1.191 matthew 1203: if (! defined($size)) {
1204: $size = 4;
1.283 albertel 1205: if (scalar(keys(%$hash))<4) {
1206: $size = scalar(keys(%$hash));
1.191 matthew 1207: }
1208: }
1.169 www 1209: $output.="\n<select name='$name' size='$size' multiple='1'>";
1.286 banghart 1210: my @order = ref($order) ? @$order
1.284 albertel 1211: : sort(keys(%$hash));
1212: foreach my $key (@order) {
1.356 albertel 1213: $output.='<option value="'.&HTML::Entities::encode($key,'"<>&').'" ';
1.284 albertel 1214: $output.='selected="selected" ' if ($selected{$key});
1215: $output.='>'.$hash->{$key}."</option>\n";
1.169 www 1216: }
1217: $output.="</select>\n";
1218: return $output;
1219: }
1220:
1.88 www 1221: #-------------------------------------------
1222:
1223: =pod
1224:
1.112 bowersj2 1225: =item * select_form($defdom,$name,%hash)
1.88 www 1226:
1227: Returns a string containing a <select name='$name' size='1'> form to
1228: allow a user to select options from a hash option_name => displayed text.
1229: See lonrights.pm for an example invocation and use.
1230:
1231: =cut
1232:
1233: #-------------------------------------------
1234: sub select_form {
1235: my ($def,$name,%hash) = @_;
1236: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1.128 albertel 1237: my @keys;
1238: if (exists($hash{'select_form_order'})) {
1239: @keys=@{$hash{'select_form_order'}};
1240: } else {
1241: @keys=sort(keys(%hash));
1242: }
1.356 albertel 1243: foreach my $key (@keys) {
1244: $selectform.=
1245: '<option value="'.&HTML::Entities::encode($key,'"<>&').'" '.
1246: ($key eq $def ? 'selected="selected" ' : '').
1247: ">".&mt($hash{$key})."</option>\n";
1.88 www 1248: }
1249: $selectform.="</select>";
1250: return $selectform;
1251: }
1252:
1.167 www 1253: sub gradeleveldescription {
1254: my $gradelevel=shift;
1255: my %gradelevels=(0 => 'Not specified',
1256: 1 => 'Grade 1',
1257: 2 => 'Grade 2',
1258: 3 => 'Grade 3',
1259: 4 => 'Grade 4',
1260: 5 => 'Grade 5',
1261: 6 => 'Grade 6',
1262: 7 => 'Grade 7',
1263: 8 => 'Grade 8',
1264: 9 => 'Grade 9',
1265: 10 => 'Grade 10',
1266: 11 => 'Grade 11',
1267: 12 => 'Grade 12',
1268: 13 => 'Grade 13',
1269: 14 => '100 Level',
1270: 15 => '200 Level',
1271: 16 => '300 Level',
1272: 17 => '400 Level',
1273: 18 => 'Graduate Level');
1274: return &mt($gradelevels{$gradelevel});
1275: }
1276:
1.163 www 1277: sub select_level_form {
1278: my ($deflevel,$name)=@_;
1279: unless ($deflevel) { $deflevel=0; }
1.167 www 1280: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1281: for (my $i=0; $i<=18; $i++) {
1282: $selectform.="<option value=\"$i\" ".
1.253 albertel 1283: ($i==$deflevel ? 'selected="selected" ' : '').
1.167 www 1284: ">".&gradeleveldescription($i)."</option>\n";
1285: }
1286: $selectform.="</select>";
1287: return $selectform;
1.163 www 1288: }
1.167 www 1289:
1.35 matthew 1290: #-------------------------------------------
1291:
1.45 matthew 1292: =pod
1293:
1.112 bowersj2 1294: =item * select_dom_form($defdom,$name,$includeempty)
1.35 matthew 1295:
1296: Returns a string containing a <select name='$name' size='1'> form to
1297: allow a user to select the domain to preform an operation in.
1298: See loncreateuser.pm for an example invocation and use.
1299:
1.90 www 1300: If the $includeempty flag is set, it also includes an empty choice ("no domain
1301: selected");
1302:
1.35 matthew 1303: =cut
1304:
1305: #-------------------------------------------
1.34 matthew 1306: sub select_dom_form {
1.90 www 1307: my ($defdom,$name,$includeempty) = @_;
1.34 matthew 1308: my @domains = get_domains();
1.90 www 1309: if ($includeempty) { @domains=('',@domains); }
1.34 matthew 1310: my $selectdomain = "<select name=\"$name\" size=\"1\">\n";
1.356 albertel 1311: foreach my $dom (@domains) {
1312: $selectdomain.="<option value=\"$dom\" ".
1313: ($dom eq $defdom ? 'selected="selected" ' : '').
1314: ">$dom</option>\n";
1.34 matthew 1315: }
1316: $selectdomain.="</select>";
1317: return $selectdomain;
1318: }
1319:
1.35 matthew 1320: #-------------------------------------------
1321:
1.45 matthew 1322: =pod
1323:
1.112 bowersj2 1324: =item * get_library_servers($domain)
1.35 matthew 1325:
1326: Returns a hash which contains keys like '103l3' and values like
1327: 'kirk.lite.msu.edu'. All of the keys will be for machines in the
1328: given $domain.
1329:
1330: =cut
1331:
1332: #-------------------------------------------
1.52 matthew 1333: sub get_library_servers {
1.33 matthew 1334: my $domain = shift;
1.52 matthew 1335: my %library_servers;
1.356 albertel 1336: foreach my $hostid (keys(%Apache::lonnet::libserv)) {
1337: if ($Apache::lonnet::hostdom{$hostid} eq $domain) {
1338: $library_servers{$hostid} = $Apache::lonnet::hostname{$hostid};
1.33 matthew 1339: }
1340: }
1.52 matthew 1341: return %library_servers;
1.33 matthew 1342: }
1343:
1.35 matthew 1344: #-------------------------------------------
1345:
1.45 matthew 1346: =pod
1347:
1.112 bowersj2 1348: =item * home_server_option_list($domain)
1.35 matthew 1349:
1350: returns a string which contains an <option> list to be used in a
1351: <select> form input. See loncreateuser.pm for an example.
1352:
1353: =cut
1354:
1355: #-------------------------------------------
1.33 matthew 1356: sub home_server_option_list {
1357: my $domain = shift;
1.52 matthew 1358: my %servers = &get_library_servers($domain);
1.33 matthew 1359: my $result = '';
1.356 albertel 1360: foreach my $hostid (sort(keys(%servers))) {
1.33 matthew 1361: $result.=
1.356 albertel 1362: '<option value="'.$hostid.'">'.
1363: $hostid.' '.$servers{$hostid}."</option>\n";
1.33 matthew 1364: }
1365: return $result;
1366: }
1.112 bowersj2 1367:
1368: =pod
1369:
1370: =back
1371:
1372: =cut
1.87 matthew 1373:
1374: ###############################################################
1.112 bowersj2 1375: ## Decoding User Agent ##
1.87 matthew 1376: ###############################################################
1377:
1378: =pod
1379:
1.112 bowersj2 1380: =head1 Decoding the User Agent
1381:
1382: =over 4
1383:
1384: =item * &decode_user_agent()
1.87 matthew 1385:
1386: Inputs: $r
1387:
1388: Outputs:
1389:
1390: =over 4
1391:
1.112 bowersj2 1392: =item * $httpbrowser
1.87 matthew 1393:
1.112 bowersj2 1394: =item * $clientbrowser
1.87 matthew 1395:
1.112 bowersj2 1396: =item * $clientversion
1.87 matthew 1397:
1.112 bowersj2 1398: =item * $clientmathml
1.87 matthew 1399:
1.112 bowersj2 1400: =item * $clientunicode
1.87 matthew 1401:
1.112 bowersj2 1402: =item * $clientos
1.87 matthew 1403:
1404: =back
1405:
1.157 matthew 1406: =back
1407:
1.87 matthew 1408: =cut
1409:
1410: ###############################################################
1411: ###############################################################
1412: sub decode_user_agent {
1.247 albertel 1413: my ($r)=@_;
1.87 matthew 1414: my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});
1415: my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});
1416: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
1.247 albertel 1417: if (!$httpbrowser && $r) { $httpbrowser=$r->header_in('User-Agent'); }
1.87 matthew 1418: my $clientbrowser='unknown';
1419: my $clientversion='0';
1420: my $clientmathml='';
1421: my $clientunicode='0';
1422: for (my $i=0;$i<=$#browsertype;$i++) {
1423: my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
1424: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
1425: $clientbrowser=$bname;
1426: $httpbrowser=~/$vreg/i;
1427: $clientversion=$1;
1428: $clientmathml=($clientversion>=$minv);
1429: $clientunicode=($clientversion>=$univ);
1430: }
1431: }
1432: my $clientos='unknown';
1433: if (($httpbrowser=~/linux/i) ||
1434: ($httpbrowser=~/unix/i) ||
1435: ($httpbrowser=~/ux/i) ||
1436: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
1437: if (($httpbrowser=~/vax/i) ||
1438: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
1439: if ($httpbrowser=~/next/i) { $clientos='next'; }
1440: if (($httpbrowser=~/mac/i) ||
1441: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
1442: if ($httpbrowser=~/win/i) { $clientos='win'; }
1443: if ($httpbrowser=~/embed/i) { $clientos='pda'; }
1444: return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
1445: $clientunicode,$clientos,);
1446: }
1447:
1.32 matthew 1448: ###############################################################
1449: ## Authentication changing form generation subroutines ##
1450: ###############################################################
1451: ##
1452: ## All of the authform_xxxxxxx subroutines take their inputs in a
1453: ## hash, and have reasonable default values.
1454: ##
1455: ## formname = the name given in the <form> tag.
1.35 matthew 1456: #-------------------------------------------
1457:
1.45 matthew 1458: =pod
1459:
1.112 bowersj2 1460: =head1 Authentication Routines
1461:
1462: =over 4
1463:
1464: =item * authform_xxxxxx
1.35 matthew 1465:
1466: The authform_xxxxxx subroutines provide javascript and html forms which
1467: handle some of the conveniences required for authentication forms.
1468: This is not an optimal method, but it works.
1469:
1470: See loncreateuser.pm for invocation and use examples.
1471:
1472: =over 4
1473:
1.112 bowersj2 1474: =item * authform_header
1.35 matthew 1475:
1.112 bowersj2 1476: =item * authform_authorwarning
1.35 matthew 1477:
1.112 bowersj2 1478: =item * authform_nochange
1.35 matthew 1479:
1.112 bowersj2 1480: =item * authform_kerberos
1.35 matthew 1481:
1.112 bowersj2 1482: =item * authform_internal
1.35 matthew 1483:
1.112 bowersj2 1484: =item * authform_filesystem
1.35 matthew 1485:
1486: =back
1487:
1.157 matthew 1488: =back
1489:
1.35 matthew 1490: =cut
1491:
1492: #-------------------------------------------
1.32 matthew 1493: sub authform_header{
1494: my %in = (
1495: formname => 'cu',
1.80 albertel 1496: kerb_def_dom => '',
1.32 matthew 1497: @_,
1498: );
1499: $in{'formname'} = 'document.' . $in{'formname'};
1500: my $result='';
1.80 albertel 1501:
1502: #---------------------------------------------- Code for upper case translation
1503: my $Javascript_toUpperCase;
1504: unless ($in{kerb_def_dom}) {
1505: $Javascript_toUpperCase =<<"END";
1506: switch (choice) {
1507: case 'krb': currentform.elements[choicearg].value =
1508: currentform.elements[choicearg].value.toUpperCase();
1509: break;
1510: default:
1511: }
1512: END
1513: } else {
1514: $Javascript_toUpperCase = "";
1515: }
1516:
1.165 raeburn 1517: my $radioval = "'nochange'";
1.174 matthew 1518: if (exists($in{'curr_authtype'}) &&
1519: defined($in{'curr_authtype'}) &&
1520: $in{'curr_authtype'} ne '') {
1521: $radioval = "'$in{'curr_authtype'}arg'";
1522: }
1.165 raeburn 1523: my $argfield = 'null';
1524: if ( grep/^mode$/,(keys %in) ) {
1525: if ($in{'mode'} eq 'modifycourse') {
1526: if ( grep/^curr_authtype$/,(keys %in) ) {
1527: $radioval = "'$in{'curr_authtype'}'";
1528: }
1529: if ( grep/^curr_autharg$/,(keys %in) ) {
1530: unless ($in{'curr_autharg'} eq '') {
1531: $argfield = "'$in{'curr_autharg'}'";
1532: }
1533: }
1534: }
1535: }
1536:
1.32 matthew 1537: $result.=<<"END";
1538: var current = new Object();
1.165 raeburn 1539: current.radiovalue = $radioval;
1540: current.argfield = $argfield;
1.32 matthew 1541:
1542: function changed_radio(choice,currentform) {
1543: var choicearg = choice + 'arg';
1544: // If a radio button in changed, we need to change the argfield
1545: if (current.radiovalue != choice) {
1546: current.radiovalue = choice;
1547: if (current.argfield != null) {
1548: currentform.elements[current.argfield].value = '';
1549: }
1550: if (choice == 'nochange') {
1551: current.argfield = null;
1552: } else {
1553: current.argfield = choicearg;
1554: switch(choice) {
1555: case 'krb':
1556: currentform.elements[current.argfield].value =
1557: "$in{'kerb_def_dom'}";
1558: break;
1559: default:
1560: break;
1561: }
1562: }
1563: }
1564: return;
1565: }
1.22 www 1566:
1.32 matthew 1567: function changed_text(choice,currentform) {
1568: var choicearg = choice + 'arg';
1569: if (currentform.elements[choicearg].value !='') {
1.80 albertel 1570: $Javascript_toUpperCase
1.32 matthew 1571: // clear old field
1572: if ((current.argfield != choicearg) && (current.argfield != null)) {
1573: currentform.elements[current.argfield].value = '';
1574: }
1575: current.argfield = choicearg;
1576: }
1577: set_auth_radio_buttons(choice,currentform);
1578: return;
1.20 www 1579: }
1.32 matthew 1580:
1581: function set_auth_radio_buttons(newvalue,currentform) {
1582: var i=0;
1583: while (i < currentform.login.length) {
1584: if (currentform.login[i].value == newvalue) { break; }
1585: i++;
1586: }
1587: if (i == currentform.login.length) {
1588: return;
1589: }
1590: current.radiovalue = newvalue;
1591: currentform.login[i].checked = true;
1592: return;
1593: }
1594: END
1595: return $result;
1596: }
1597:
1598: sub authform_authorwarning{
1599: my $result='';
1.144 matthew 1600: $result='<i>'.
1601: &mt('As a general rule, only authors or co-authors should be '.
1602: 'filesystem authenticated '.
1603: '(which allows access to the server filesystem).')."</i>\n";
1.32 matthew 1604: return $result;
1605: }
1606:
1607: sub authform_nochange{
1608: my %in = (
1609: formname => 'document.cu',
1610: kerb_def_dom => 'MSU.EDU',
1611: @_,
1612: );
1.281 albertel 1613: my $result = '<label>'.&mt('[_1] Do not change login data',
1.144 matthew 1614: '<input type="radio" name="login" value="nochange" '.
1615: 'checked="checked" onclick="'.
1.281 albertel 1616: "javascript:changed_radio('nochange',$in{'formname'});".'" />').
1617: '</label>';
1.32 matthew 1618: return $result;
1619: }
1620:
1621: sub authform_kerberos{
1622: my %in = (
1623: formname => 'document.cu',
1624: kerb_def_dom => 'MSU.EDU',
1.80 albertel 1625: kerb_def_auth => 'krb4',
1.32 matthew 1626: @_,
1627: );
1.165 raeburn 1628: my ($check4,$check5,$krbarg);
1.80 albertel 1629: if ($in{'kerb_def_auth'} eq 'krb5') {
1630: $check5 = " checked=\"on\"";
1631: } else {
1632: $check4 = " checked=\"on\"";
1633: }
1.165 raeburn 1634: $krbarg = $in{'kerb_def_dom'};
1635:
1636: my $krbcheck = "";
1637: if ( grep/^curr_authtype$/,(keys %in) ) {
1638: if ($in{'curr_authtype'} =~ m/^krb/) {
1639: $krbcheck = " checked=\"on\"";
1640: if ( grep/^curr_autharg$/,(keys %in) ) {
1641: $krbarg = $in{'curr_autharg'};
1642: }
1643: }
1644: }
1645:
1.144 matthew 1646: my $jscall = "javascript:changed_radio('krb',$in{'formname'});";
1647: my $result .= &mt
1648: ('[_1] Kerberos authenticated with domain [_2] '.
1.281 albertel 1649: '[_3] Version 4 [_4] Version 5 [_5]',
1650: '<label><input type="radio" name="login" value="krb" '.
1.165 raeburn 1651: 'onclick="'.$jscall.'" onchange="'.$jscall.'"'.$krbcheck.' />',
1.281 albertel 1652: '</label><input type="text" size="10" name="krbarg" '.
1.165 raeburn 1653: 'value="'.$krbarg.'" '.
1.144 matthew 1654: 'onchange="'.$jscall.'" />',
1.281 albertel 1655: '<label><input type="radio" name="krbver" value="4" '.$check4.' />',
1656: '</label><label><input type="radio" name="krbver" value="5" '.$check5.' />',
1657: '</label>');
1.32 matthew 1658: return $result;
1659: }
1660:
1661: sub authform_internal{
1662: my %args = (
1663: formname => 'document.cu',
1664: kerb_def_dom => 'MSU.EDU',
1665: @_,
1666: );
1.165 raeburn 1667:
1668: my $intcheck = "";
1669: my $intarg = 'value=""';
1670: if ( grep/^curr_authtype$/,(keys %args) ) {
1671: if ($args{'curr_authtype'} eq 'int') {
1672: $intcheck = " checked=\"on\"";
1673: if ( grep/^curr_autharg$/,(keys %args) ) {
1674: $intarg = "value=\"$args{'curr_autharg'}\"";
1675: }
1676: }
1677: }
1678:
1.144 matthew 1679: my $jscall = "javascript:changed_radio('int',$args{'formname'});";
1680: my $result.=&mt
1681: ('[_1] Internally authenticated (with initial password [_2])',
1.281 albertel 1682: '<label><input type="radio" name="login" value="int" '.$intcheck.
1.165 raeburn 1683: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1.281 albertel 1684: '</label><input type="text" size="10" name="intarg" '.$intarg.
1.165 raeburn 1685: ' onchange="'.$jscall.'" />');
1.32 matthew 1686: return $result;
1687: }
1688:
1689: sub authform_local{
1690: my %in = (
1691: formname => 'document.cu',
1692: kerb_def_dom => 'MSU.EDU',
1693: @_,
1694: );
1.165 raeburn 1695:
1696: my $loccheck = "";
1697: my $locarg = 'value=""';
1698: if ( grep/^curr_authtype$/,(keys %in) ) {
1699: if ($in{'curr_authtype'} eq 'loc') {
1700: $loccheck = " checked=\"on\"";
1701: if ( grep/^curr_autharg$/,(keys %in) ) {
1702: $locarg = "value=\"$in{'curr_autharg'}\"";
1703: }
1704: }
1705: }
1706:
1.144 matthew 1707: my $jscall = "javascript:changed_radio('loc',$in{'formname'});";
1.160 matthew 1708: my $result.=&mt('[_1] Local Authentication with argument [_2]',
1.281 albertel 1709: '<label><input type="radio" name="login" value="loc" '.$loccheck.
1.165 raeburn 1710: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1.281 albertel 1711: '</label><input type="text" size="10" name="locarg" '.$locarg.
1.165 raeburn 1712: ' onchange="'.$jscall.'" />');
1.32 matthew 1713: return $result;
1714: }
1715:
1716: sub authform_filesystem{
1717: my %in = (
1718: formname => 'document.cu',
1719: kerb_def_dom => 'MSU.EDU',
1720: @_,
1721: );
1.144 matthew 1722: my $jscall = "javascript:changed_radio('fsys',$in{'formname'});";
1723: my $result.= &mt
1724: ('[_1] Filesystem Authenticated (with initial password [_2])',
1.281 albertel 1725: '<label><input type="radio" name="login" value="fsys" '.
1.144 matthew 1726: 'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1.281 albertel 1727: '</label><input type="text" size="10" name="fsysarg" value="" '.
1.144 matthew 1728: 'onchange="'.$jscall.'" />');
1.32 matthew 1729: return $result;
1730: }
1731:
1.80 albertel 1732: ###############################################################
1733: ## Get Authentication Defaults for Domain ##
1734: ###############################################################
1735:
1736: =pod
1737:
1.112 bowersj2 1738: =head1 Domains and Authentication
1739:
1740: Returns default authentication type and an associated argument as
1741: listed in file 'domain.tab'.
1742:
1743: =over 4
1744:
1745: =item * get_auth_defaults
1.80 albertel 1746:
1747: get_auth_defaults($target_domain) returns the default authentication
1748: type and an associated argument (initial password or a kerberos domain).
1749: These values are stored in lonTabs/domain.tab
1750:
1751: ($def_auth, $def_arg) = &get_auth_defaults($target_domain);
1752:
1753: If target_domain is not found in domain.tab, returns nothing ('').
1754:
1755: =cut
1756:
1757: #-------------------------------------------
1758: sub get_auth_defaults {
1759: my $domain=shift;
1760: return ($Apache::lonnet::domain_auth_def{$domain},$Apache::lonnet::domain_auth_arg_def{$domain});
1761: }
1762: ###############################################################
1763: ## End Get Authentication Defaults for Domain ##
1764: ###############################################################
1765:
1766: ###############################################################
1767: ## Get Kerberos Defaults for Domain ##
1768: ###############################################################
1769: ##
1770: ## Returns default kerberos version and an associated argument
1771: ## as listed in file domain.tab. If not listed, provides
1772: ## appropriate default domain and kerberos version.
1773: ##
1774: #-------------------------------------------
1775:
1776: =pod
1777:
1.112 bowersj2 1778: =item * get_kerberos_defaults
1.80 albertel 1779:
1780: get_kerberos_defaults($target_domain) returns the default kerberos
1781: version and domain. If not found in domain.tabs, it defaults to
1782: version 4 and the domain of the server.
1783:
1784: ($def_version, $def_krb_domain) = &get_kerberos_defaults($target_domain);
1785:
1786: =cut
1787:
1788: #-------------------------------------------
1789: sub get_kerberos_defaults {
1790: my $domain=shift;
1791: my ($krbdef,$krbdefdom) =
1792: &Apache::loncommon::get_auth_defaults($domain);
1793: unless ($krbdef =~/^krb/ && $krbdefdom) {
1794: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
1795: my $krbdefdom=$1;
1796: $krbdefdom=~tr/a-z/A-Z/;
1797: $krbdef = "krb4";
1798: }
1799: return ($krbdef,$krbdefdom);
1800: }
1.112 bowersj2 1801:
1802: =pod
1803:
1804: =back
1805:
1806: =cut
1.32 matthew 1807:
1.46 matthew 1808: ###############################################################
1809: ## Thesaurus Functions ##
1810: ###############################################################
1.20 www 1811:
1.46 matthew 1812: =pod
1.20 www 1813:
1.112 bowersj2 1814: =head1 Thesaurus Functions
1815:
1816: =over 4
1817:
1818: =item * initialize_keywords
1.46 matthew 1819:
1820: Initializes the package variable %Keywords if it is empty. Uses the
1821: package variable $thesaurus_db_file.
1822:
1823: =cut
1824:
1825: ###################################################
1826:
1827: sub initialize_keywords {
1828: return 1 if (scalar keys(%Keywords));
1829: # If we are here, %Keywords is empty, so fill it up
1830: # Make sure the file we need exists...
1831: if (! -e $thesaurus_db_file) {
1832: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file".
1833: " failed because it does not exist");
1834: return 0;
1835: }
1836: # Set up the hash as a database
1837: my %thesaurus_db;
1838: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1839: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1840: &Apache::lonnet::logthis("Could not tie \%thesaurus_db to ".
1841: $thesaurus_db_file);
1842: return 0;
1843: }
1844: # Get the average number of appearances of a word.
1845: my $avecount = $thesaurus_db{'average.count'};
1846: # Put keywords (those that appear > average) into %Keywords
1847: while (my ($word,$data)=each (%thesaurus_db)) {
1848: my ($count,undef) = split /:/,$data;
1849: $Keywords{$word}++ if ($count > $avecount);
1850: }
1851: untie %thesaurus_db;
1852: # Remove special values from %Keywords.
1.356 albertel 1853: foreach my $value ('total.count','average.count') {
1854: delete($Keywords{$value}) if (exists($Keywords{$value}));
1.46 matthew 1855: }
1856: return 1;
1857: }
1858:
1859: ###################################################
1860:
1861: =pod
1862:
1.112 bowersj2 1863: =item * keyword($word)
1.46 matthew 1864:
1865: Returns true if $word is a keyword. A keyword is a word that appears more
1866: than the average number of times in the thesaurus database. Calls
1867: &initialize_keywords
1868:
1869: =cut
1870:
1871: ###################################################
1.20 www 1872:
1873: sub keyword {
1.46 matthew 1874: return if (!&initialize_keywords());
1875: my $word=lc(shift());
1876: $word=~s/\W//g;
1877: return exists($Keywords{$word});
1.20 www 1878: }
1.46 matthew 1879:
1880: ###############################################################
1881:
1882: =pod
1.20 www 1883:
1.112 bowersj2 1884: =item * get_related_words
1.46 matthew 1885:
1.160 matthew 1886: Look up a word in the thesaurus. Takes a scalar argument and returns
1.46 matthew 1887: an array of words. If the keyword is not in the thesaurus, an empty array
1888: will be returned. The order of the words returned is determined by the
1889: database which holds them.
1890:
1891: Uses global $thesaurus_db_file.
1892:
1893: =cut
1894:
1895: ###############################################################
1896: sub get_related_words {
1897: my $keyword = shift;
1898: my %thesaurus_db;
1899: if (! -e $thesaurus_db_file) {
1900: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file ".
1901: "failed because the file does not exist");
1902: return ();
1903: }
1904: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1905: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1906: return ();
1907: }
1908: my @Words=();
1909: if (exists($thesaurus_db{$keyword})) {
1.356 albertel 1910: # The first element is the number of times
1911: # the word appears. We do not need it now.
1912: (undef,@Words) = (split(/:/,$thesaurus_db{$keyword}));
1.46 matthew 1913: for (my $i=0;$i<=$#Words;$i++) {
1.356 albertel 1914: ($Words[$i],undef)= split(/\,/,$Words[$i]);
1.20 www 1915: }
1916: }
1.46 matthew 1917: untie %thesaurus_db;
1918: return @Words;
1.14 harris41 1919: }
1.46 matthew 1920:
1.112 bowersj2 1921: =pod
1922:
1923: =back
1924:
1925: =cut
1.61 www 1926:
1927: # -------------------------------------------------------------- Plaintext name
1.81 albertel 1928: =pod
1929:
1.112 bowersj2 1930: =head1 User Name Functions
1931:
1932: =over 4
1933:
1.226 albertel 1934: =item * plainname($uname,$udom,$first)
1.81 albertel 1935:
1.112 bowersj2 1936: Takes a users logon name and returns it as a string in
1.226 albertel 1937: "first middle last generation" form
1938: if $first is set to 'lastname' then it returns it as
1939: 'lastname generation, firstname middlename' if their is a lastname
1.81 albertel 1940:
1941: =cut
1.61 www 1942:
1.295 www 1943:
1.81 albertel 1944: ###############################################################
1.61 www 1945: sub plainname {
1.226 albertel 1946: my ($uname,$udom,$first)=@_;
1.295 www 1947: my %names=&getnames($uname,$udom);
1.226 albertel 1948: my $name=&Apache::lonnet::format_name($names{'firstname'},
1949: $names{'middlename'},
1950: $names{'lastname'},
1951: $names{'generation'},$first);
1952: $name=~s/^\s+//;
1.62 www 1953: $name=~s/\s+$//;
1954: $name=~s/\s+/ /g;
1.353 albertel 1955: if ($name !~ /\S/) { $name=$uname.':'.$udom; }
1.62 www 1956: return $name;
1.61 www 1957: }
1.66 www 1958:
1959: # -------------------------------------------------------------------- Nickname
1.81 albertel 1960: =pod
1961:
1.112 bowersj2 1962: =item * nickname($uname,$udom)
1.81 albertel 1963:
1964: Gets a users name and returns it as a string as
1965:
1966: ""nickname""
1.66 www 1967:
1.81 albertel 1968: if the user has a nickname or
1969:
1970: "first middle last generation"
1971:
1972: if the user does not
1973:
1974: =cut
1.66 www 1975:
1976: sub nickname {
1977: my ($uname,$udom)=@_;
1.295 www 1978: my %names=&getnames($uname,$udom);
1.68 albertel 1979: my $name=$names{'nickname'};
1.66 www 1980: if ($name) {
1981: $name='"'.$name.'"';
1982: } else {
1983: $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
1984: $names{'lastname'}.' '.$names{'generation'};
1985: $name=~s/\s+$//;
1986: $name=~s/\s+/ /g;
1987: }
1988: return $name;
1989: }
1990:
1.295 www 1991: sub getnames {
1992: my ($uname,$udom)=@_;
1993: my $id=$uname.':'.$udom;
1994: my ($names,$cached)=&Apache::lonnet::is_cached_new('namescache',$id);
1995: if ($cached) {
1996: return %{$names};
1997: } else {
1998: my %loadnames=&Apache::lonnet::get('environment',
1999: ['firstname','middlename','lastname','generation','nickname'],
2000: $udom,$uname);
2001: &Apache::lonnet::do_cache_new('namescache',$id,\%loadnames);
2002: return %loadnames;
2003: }
2004: }
1.61 www 2005:
2006: # ------------------------------------------------------------------ Screenname
1.81 albertel 2007:
2008: =pod
2009:
1.112 bowersj2 2010: =item * screenname($uname,$udom)
1.81 albertel 2011:
2012: Gets a users screenname and returns it as a string
2013:
2014: =cut
1.61 www 2015:
2016: sub screenname {
2017: my ($uname,$udom)=@_;
1.258 albertel 2018: if ($uname eq $env{'user.name'} &&
2019: $udom eq $env{'user.domain'}) {return $env{'environment.screenname'};}
1.212 albertel 2020: my %names=&Apache::lonnet::get('environment',['screenname'],$udom,$uname);
1.68 albertel 2021: return $names{'screenname'};
1.62 www 2022: }
2023:
1.212 albertel 2024:
1.62 www 2025: # ------------------------------------------------------------- Message Wrapper
2026:
2027: sub messagewrapper {
1.369 www 2028: my ($link,$username,$domain,$subject,$text)=@_;
1.62 www 2029: return
1.200 matthew 2030: '<a href="/adm/email?compose=individual&'.
1.369 www 2031: 'recname='.$username.'&recdom='.$domain.
2032: '&subject='.&escape($subject).'&text='.&escape($text).'" '.
1.200 matthew 2033: 'title="'.&mt('Send message').'">'.$link.'</a>';
1.74 www 2034: }
2035: # --------------------------------------------------------------- Notes Wrapper
2036:
2037: sub noteswrapper {
2038: my ($link,$un,$do)=@_;
2039: return
2040: "<a href='/adm/email?recordftf=retrieve&recname=$un&recdom=$do'>$link</a>";
1.62 www 2041: }
2042: # ------------------------------------------------------------- Aboutme Wrapper
2043:
2044: sub aboutmewrapper {
1.166 www 2045: my ($link,$username,$domain,$target)=@_;
1.205 www 2046: return '<a href="/adm/'.$domain.'/'.$username.'/aboutme"'.
1.200 matthew 2047: ($target?' target="$target"':'').' title="'.&mt('View this users personal page').'">'.$link.'</a>';
1.62 www 2048: }
2049:
2050: # ------------------------------------------------------------ Syllabus Wrapper
2051:
2052:
2053: sub syllabuswrapper {
1.109 matthew 2054: my ($linktext,$coursedir,$domain,$fontcolor)=@_;
2055: if ($fontcolor) {
2056: $linktext='<font color="'.$fontcolor.'">'.$linktext.'</font>';
2057: }
1.208 matthew 2058: return qq{<a href="/public/$domain/$coursedir/syllabus">$linktext</a>};
1.61 www 2059: }
1.14 harris41 2060:
1.208 matthew 2061: sub track_student_link {
1.268 albertel 2062: my ($linktext,$sname,$sdom,$target,$start) = @_;
2063: my $link ="/adm/trackstudent?";
1.208 matthew 2064: my $title = 'View recent activity';
2065: if (defined($sname) && $sname !~ /^\s*$/ &&
2066: defined($sdom) && $sdom !~ /^\s*$/) {
1.268 albertel 2067: $link .= "selected_student=$sname:$sdom";
1.208 matthew 2068: $title .= ' of this student';
1.268 albertel 2069: }
1.208 matthew 2070: if (defined($target) && $target !~ /^\s*$/) {
2071: $target = qq{target="$target"};
2072: } else {
2073: $target = '';
2074: }
1.268 albertel 2075: if ($start) { $link.='&start='.$start; }
1.208 matthew 2076: return qq{<a href="$link" title="$title" $target>$linktext</a>};
2077: }
2078:
1.112 bowersj2 2079: =pod
2080:
2081: =back
2082:
2083: =head1 Access .tab File Data
2084:
2085: =over 4
2086:
2087: =item * languageids()
2088:
2089: returns list of all language ids
2090:
2091: =cut
2092:
1.14 harris41 2093: sub languageids {
1.16 harris41 2094: return sort(keys(%language));
1.14 harris41 2095: }
2096:
1.112 bowersj2 2097: =pod
2098:
2099: =item * languagedescription()
2100:
2101: returns description of a specified language id
2102:
2103: =cut
2104:
1.14 harris41 2105: sub languagedescription {
1.125 www 2106: my $code=shift;
2107: return ($supported_language{$code}?'* ':'').
2108: $language{$code}.
1.126 www 2109: ($supported_language{$code}?' ('.&mt('interface available').')':'');
1.145 www 2110: }
2111:
2112: sub plainlanguagedescription {
2113: my $code=shift;
2114: return $language{$code};
2115: }
2116:
2117: sub supportedlanguagecode {
2118: my $code=shift;
2119: return $supported_language{$code};
1.97 www 2120: }
2121:
1.112 bowersj2 2122: =pod
2123:
2124: =item * copyrightids()
2125:
2126: returns list of all copyrights
2127:
2128: =cut
2129:
2130: sub copyrightids {
2131: return sort(keys(%cprtag));
2132: }
2133:
2134: =pod
2135:
2136: =item * copyrightdescription()
2137:
2138: returns description of a specified copyright id
2139:
2140: =cut
2141:
2142: sub copyrightdescription {
1.166 www 2143: return &mt($cprtag{shift(@_)});
1.112 bowersj2 2144: }
1.197 matthew 2145:
2146: =pod
2147:
1.192 taceyjo1 2148: =item * source_copyrightids()
2149:
2150: returns list of all source copyrights
2151:
2152: =cut
2153:
2154: sub source_copyrightids {
2155: return sort(keys(%scprtag));
2156: }
2157:
2158: =pod
2159:
2160: =item * source_copyrightdescription()
2161:
2162: returns description of a specified source copyright id
2163:
2164: =cut
2165:
2166: sub source_copyrightdescription {
2167: return &mt($scprtag{shift(@_)});
2168: }
1.112 bowersj2 2169:
2170: =pod
2171:
2172: =item * filecategories()
2173:
2174: returns list of all file categories
2175:
2176: =cut
2177:
2178: sub filecategories {
2179: return sort(keys(%category_extensions));
2180: }
2181:
2182: =pod
2183:
2184: =item * filecategorytypes()
2185:
2186: returns list of file types belonging to a given file
2187: category
2188:
2189: =cut
2190:
2191: sub filecategorytypes {
1.356 albertel 2192: my ($cat) = @_;
2193: return @{$category_extensions{lc($cat)}};
1.112 bowersj2 2194: }
2195:
2196: =pod
2197:
2198: =item * fileembstyle()
2199:
2200: returns embedding style for a specified file type
2201:
2202: =cut
2203:
2204: sub fileembstyle {
2205: return $fe{lc(shift(@_))};
1.169 www 2206: }
2207:
1.351 www 2208: sub filemimetype {
2209: return $fm{lc(shift(@_))};
2210: }
2211:
1.169 www 2212:
2213: sub filecategoryselect {
2214: my ($name,$value)=@_;
1.189 matthew 2215: return &select_form($value,$name,
1.169 www 2216: '' => &mt('Any category'),
2217: map { $_,$_ } sort(keys(%category_extensions)));
1.112 bowersj2 2218: }
2219:
2220: =pod
2221:
2222: =item * filedescription()
2223:
2224: returns description for a specified file type
2225:
2226: =cut
2227:
2228: sub filedescription {
1.188 matthew 2229: my $file_description = $fd{lc(shift())};
2230: $file_description =~ s:([\[\]]):~$1:g;
2231: return &mt($file_description);
1.112 bowersj2 2232: }
2233:
2234: =pod
2235:
2236: =item * filedescriptionex()
2237:
2238: returns description for a specified file type with
2239: extra formatting
2240:
2241: =cut
2242:
2243: sub filedescriptionex {
2244: my $ex=shift;
1.188 matthew 2245: my $file_description = $fd{lc($ex)};
2246: $file_description =~ s:([\[\]]):~$1:g;
2247: return '.'.$ex.' '.&mt($file_description);
1.112 bowersj2 2248: }
2249:
2250: # End of .tab access
2251: =pod
2252:
2253: =back
2254:
2255: =cut
2256:
2257: # ------------------------------------------------------------------ File Types
2258: sub fileextensions {
2259: return sort(keys(%fe));
2260: }
2261:
1.97 www 2262: # ----------------------------------------------------------- Display Languages
2263: # returns a hash with all desired display languages
2264: #
2265:
2266: sub display_languages {
2267: my %languages=();
1.356 albertel 2268: foreach my $lang (&preferred_languages()) {
2269: $languages{$lang}=1;
1.97 www 2270: }
2271: &get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']);
1.258 albertel 2272: if ($env{'form.displaylanguage'}) {
1.356 albertel 2273: foreach my $lang (split(/\s*(\,|\;|\:)\s*/,$env{'form.displaylanguage'})) {
2274: $languages{$lang}=1;
1.97 www 2275: }
2276: }
2277: return %languages;
1.14 harris41 2278: }
2279:
1.117 www 2280: sub preferred_languages {
2281: my @languages=();
1.258 albertel 2282: if ($env{'course.'.$env{'request.course.id'}.'.languages'}) {
1.117 www 2283: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,
1.258 albertel 2284: $env{'course.'.$env{'request.course.id'}.'.languages'}));
1.177 www 2285: }
1.258 albertel 2286: if ($env{'environment.languages'}) {
2287: @languages=split(/\s*(\,|\;|\:)\s*/,$env{'environment.languages'});
1.118 www 2288: }
1.162 www 2289: my $browser=(split(/\;/,$ENV{'HTTP_ACCEPT_LANGUAGE'}))[0];
2290: if ($browser) {
2291: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$browser));
2292: }
1.258 albertel 2293: if ($Apache::lonnet::domain_lang_def{$env{'user.domain'}}) {
1.118 www 2294: @languages=(@languages,
1.258 albertel 2295: $Apache::lonnet::domain_lang_def{$env{'user.domain'}});
1.118 www 2296: }
1.258 albertel 2297: if ($Apache::lonnet::domain_lang_def{$env{'request.role.domain'}}) {
1.118 www 2298: @languages=(@languages,
1.258 albertel 2299: $Apache::lonnet::domain_lang_def{$env{'request.role.domain'}});
1.118 www 2300: }
2301: if ($Apache::lonnet::domain_lang_def{
2302: $Apache::lonnet::perlvar{'lonDefDomain'}}) {
2303: @languages=(@languages,
2304: $Apache::lonnet::domain_lang_def{
2305: $Apache::lonnet::perlvar{'lonDefDomain'}});
2306: }
2307: # turn "en-ca" into "en-ca,en"
2308: my @genlanguages;
1.356 albertel 2309: foreach my $lang (@languages) {
2310: unless ($lang=~/\w/) { next; }
2311: push (@genlanguages,$lang);
2312: if ($lang=~/(\-|\_)/) {
2313: push(@genlanguages,(split(/(\-|\_)/,$lang))[0]);
1.118 www 2314: }
2315: }
2316: return @genlanguages;
1.117 www 2317: }
2318:
1.112 bowersj2 2319: ###############################################################
2320: ## Student Answer Attempts ##
2321: ###############################################################
2322:
2323: =pod
2324:
2325: =head1 Alternate Problem Views
2326:
2327: =over 4
2328:
2329: =item * get_previous_attempt($symb, $username, $domain, $course,
2330: $getattempt, $regexp, $gradesub)
2331:
2332: Return string with previous attempt on problem. Arguments:
2333:
2334: =over 4
2335:
2336: =item * $symb: Problem, including path
2337:
2338: =item * $username: username of the desired student
2339:
2340: =item * $domain: domain of the desired student
1.14 harris41 2341:
1.112 bowersj2 2342: =item * $course: Course ID
1.14 harris41 2343:
1.112 bowersj2 2344: =item * $getattempt: Leave blank for all attempts, otherwise put
2345: something
1.14 harris41 2346:
1.112 bowersj2 2347: =item * $regexp: if string matches this regexp, the string will be
2348: sent to $gradesub
1.14 harris41 2349:
1.112 bowersj2 2350: =item * $gradesub: routine that processes the string if it matches $regexp
1.14 harris41 2351:
1.112 bowersj2 2352: =back
1.14 harris41 2353:
1.112 bowersj2 2354: The output string is a table containing all desired attempts, if any.
1.16 harris41 2355:
1.112 bowersj2 2356: =cut
1.1 albertel 2357:
2358: sub get_previous_attempt {
1.43 ng 2359: my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub)=@_;
1.1 albertel 2360: my $prevattempts='';
1.43 ng 2361: no strict 'refs';
1.1 albertel 2362: if ($symb) {
1.3 albertel 2363: my (%returnhash)=
2364: &Apache::lonnet::restore($symb,$course,$domain,$username);
1.1 albertel 2365: if ($returnhash{'version'}) {
2366: my %lasthash=();
2367: my $version;
2368: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.356 albertel 2369: foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) {
2370: $lasthash{$key}=$returnhash{$version.':'.$key};
1.19 harris41 2371: }
1.1 albertel 2372: }
1.43 ng 2373: $prevattempts='<table border="0" width="100%"><tr><td bgcolor="#777777">';
1.40 ng 2374: $prevattempts.='<table border="0" width="100%"><tr bgcolor="#e6ffff"><td>History</td>';
1.356 albertel 2375: foreach my $key (sort(keys(%lasthash))) {
2376: my ($ign,@parts) = split(/\./,$key);
1.41 ng 2377: if ($#parts > 0) {
1.31 albertel 2378: my $data=$parts[-1];
2379: pop(@parts);
1.40 ng 2380: $prevattempts.='<td>Part '.join('.',@parts).'<br />'.$data.' </td>';
1.31 albertel 2381: } else {
1.41 ng 2382: if ($#parts == 0) {
2383: $prevattempts.='<th>'.$parts[0].'</th>';
2384: } else {
2385: $prevattempts.='<th>'.$ign.'</th>';
2386: }
1.31 albertel 2387: }
1.16 harris41 2388: }
1.40 ng 2389: if ($getattempt eq '') {
2390: for ($version=1;$version<=$returnhash{'version'};$version++) {
2391: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Transaction '.$version.'</td>';
1.356 albertel 2392: foreach my $key (sort(keys(%lasthash))) {
1.40 ng 2393: my $value;
1.356 albertel 2394: if ($key =~ /timestamp/) {
2395: $value=scalar(localtime($returnhash{$version.':'.$key}));
1.40 ng 2396: } else {
1.356 albertel 2397: $value=$returnhash{$version.':'.$key};
1.40 ng 2398: }
1.369 www 2399: $prevattempts.='<td>'.&unescape($value).' </td>';
1.40 ng 2400: }
2401: }
1.1 albertel 2402: }
1.40 ng 2403: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Current</td>';
1.356 albertel 2404: foreach my $key (sort(keys(%lasthash))) {
1.5 albertel 2405: my $value;
1.356 albertel 2406: if ($key =~ /timestamp/) {
2407: $value=scalar(localtime($lasthash{$key}));
1.5 albertel 2408: } else {
1.356 albertel 2409: $value=$lasthash{$key};
1.5 albertel 2410: }
1.369 www 2411: $value=&unescape($value);
1.356 albertel 2412: if ($key =~/$regexp$/ && (defined &$gradesub)) {$value = &$gradesub($value)}
1.40 ng 2413: $prevattempts.='<td>'.$value.' </td>';
1.16 harris41 2414: }
1.40 ng 2415: $prevattempts.='</tr></table></td></tr></table>';
1.1 albertel 2416: } else {
2417: $prevattempts='Nothing submitted - no attempts.';
2418: }
2419: } else {
2420: $prevattempts='No data.';
2421: }
1.10 albertel 2422: }
2423:
1.107 albertel 2424: sub relative_to_absolute {
2425: my ($url,$output)=@_;
2426: my $parser=HTML::TokeParser->new(\$output);
2427: my $token;
2428: my $thisdir=$url;
2429: my @rlinks=();
2430: while ($token=$parser->get_token) {
2431: if ($token->[0] eq 'S') {
2432: if ($token->[1] eq 'a') {
2433: if ($token->[2]->{'href'}) {
2434: $rlinks[$#rlinks+1]=$token->[2]->{'href'};
2435: }
2436: } elsif ($token->[1] eq 'img' || $token->[1] eq 'embed' ) {
2437: $rlinks[$#rlinks+1]=$token->[2]->{'src'};
2438: } elsif ($token->[1] eq 'base') {
2439: $thisdir=$token->[2]->{'href'};
2440: }
2441: }
2442: }
2443: $thisdir=~s-/[^/]*$--;
1.356 albertel 2444: foreach my $link (@rlinks) {
2445: unless (($link=~/^http:\/\//i) ||
2446: ($link=~/^\//) ||
2447: ($link=~/^javascript:/i) ||
2448: ($link=~/^mailto:/i) ||
2449: ($link=~/^\#/)) {
2450: my $newlocation=&Apache::lonnet::hreflocation($thisdir,$link);
2451: $output=~s/(\"|\'|\=\s*)\Q$link\E(\"|\'|\s|\>)/$1$newlocation$2/;
1.107 albertel 2452: }
2453: }
2454: # -------------------------------------------------- Deal with Applet codebases
2455: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
2456: return $output;
2457: }
2458:
1.112 bowersj2 2459: =pod
2460:
2461: =item * get_student_view
2462:
2463: show a snapshot of what student was looking at
2464:
2465: =cut
2466:
1.10 albertel 2467: sub get_student_view {
1.186 albertel 2468: my ($symb,$username,$domain,$courseid,$target,$moreenv) = @_;
1.114 www 2469: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2470: my (%form);
1.10 albertel 2471: my @elements=('symb','courseid','domain','username');
2472: foreach my $element (@elements) {
1.186 albertel 2473: $form{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2474: }
1.186 albertel 2475: if (defined($moreenv)) {
2476: %form=(%form,%{$moreenv});
2477: }
1.236 albertel 2478: if (defined($target)) { $form{'grade_target'} = $target; }
1.107 albertel 2479: $feedurl=&Apache::lonnet::clutter($feedurl);
1.186 albertel 2480: my $userview=&Apache::lonnet::ssi_body($feedurl,%form);
1.11 albertel 2481: $userview=~s/\<body[^\>]*\>//gi;
2482: $userview=~s/\<\/body\>//gi;
2483: $userview=~s/\<html\>//gi;
2484: $userview=~s/\<\/html\>//gi;
2485: $userview=~s/\<head\>//gi;
2486: $userview=~s/\<\/head\>//gi;
2487: $userview=~s/action\s*\=/would_be_action\=/gi;
1.107 albertel 2488: $userview=&relative_to_absolute($feedurl,$userview);
1.11 albertel 2489: return $userview;
2490: }
2491:
1.112 bowersj2 2492: =pod
2493:
2494: =item * get_student_answers()
2495:
2496: show a snapshot of how student was answering problem
2497:
2498: =cut
2499:
1.11 albertel 2500: sub get_student_answers {
1.100 sakharuk 2501: my ($symb,$username,$domain,$courseid,%form) = @_;
1.114 www 2502: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2503: my (%moreenv);
1.11 albertel 2504: my @elements=('symb','courseid','domain','username');
2505: foreach my $element (@elements) {
1.186 albertel 2506: $moreenv{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2507: }
1.186 albertel 2508: $moreenv{'grade_target'}='answer';
2509: %moreenv=(%form,%moreenv);
2510: my $userview=&Apache::lonnet::ssi('/res/'.$feedurl,%moreenv);
1.10 albertel 2511: return $userview;
1.1 albertel 2512: }
1.116 albertel 2513:
2514: =pod
2515:
2516: =item * &submlink()
2517:
1.242 albertel 2518: Inputs: $text $uname $udom $symb $target
1.116 albertel 2519:
2520: Returns: A link to grades.pm such as to see the SUBM view of a student
2521:
2522: =cut
2523:
2524: ###############################################
2525: sub submlink {
1.242 albertel 2526: my ($text,$uname,$udom,$symb,$target)=@_;
1.116 albertel 2527: if (!($uname && $udom)) {
2528: (my $cursymb, my $courseid,$udom,$uname)=
2529: &Apache::lonxml::whichuser($symb);
2530: if (!$symb) { $symb=$cursymb; }
2531: }
1.254 matthew 2532: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
1.369 www 2533: $symb=&escape($symb);
1.242 albertel 2534: if ($target) { $target="target=\"$target\""; }
2535: return '<a href="/adm/grades?&command=submission&'.
2536: 'symb='.$symb.'&student='.$uname.
2537: '&userdom='.$udom.'" '.$target.'>'.$text.'</a>';
2538: }
2539: ##############################################
2540:
2541: =pod
2542:
2543: =item * &pgrdlink()
2544:
2545: Inputs: $text $uname $udom $symb $target
2546:
2547: Returns: A link to grades.pm such as to see the PGRD view of a student
2548:
2549: =cut
2550:
2551: ###############################################
2552: sub pgrdlink {
2553: my $link=&submlink(@_);
2554: $link=~s/(&command=submission)/$1&showgrading=yes/;
2555: return $link;
2556: }
2557: ##############################################
2558:
2559: =pod
2560:
2561: =item * &pprmlink()
2562:
2563: Inputs: $text $uname $udom $symb $target
2564:
2565: Returns: A link to parmset.pm such as to see the PPRM view of a
1.283 albertel 2566: student and a specific resource
1.242 albertel 2567:
2568: =cut
2569:
2570: ###############################################
2571: sub pprmlink {
2572: my ($text,$uname,$udom,$symb,$target)=@_;
2573: if (!($uname && $udom)) {
2574: (my $cursymb, my $courseid,$udom,$uname)=
2575: &Apache::lonxml::whichuser($symb);
2576: if (!$symb) { $symb=$cursymb; }
2577: }
1.254 matthew 2578: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
1.369 www 2579: $symb=&escape($symb);
1.242 albertel 2580: if ($target) { $target="target=\"$target\""; }
2581: return '<a href="/adm/parmset?&command=set&'.
2582: 'symb='.$symb.'&uname='.$uname.
2583: '&udom='.$udom.'" '.$target.'>'.$text.'</a>';
1.116 albertel 2584: }
2585: ##############################################
1.37 matthew 2586:
1.112 bowersj2 2587: =pod
2588:
2589: =back
2590:
2591: =cut
2592:
1.37 matthew 2593: ###############################################
1.51 www 2594:
2595:
2596: sub timehash {
2597: my @ltime=localtime(shift);
2598: return ( 'seconds' => $ltime[0],
2599: 'minutes' => $ltime[1],
2600: 'hours' => $ltime[2],
2601: 'day' => $ltime[3],
2602: 'month' => $ltime[4]+1,
2603: 'year' => $ltime[5]+1900,
2604: 'weekday' => $ltime[6],
2605: 'dayyear' => $ltime[7]+1,
2606: 'dlsav' => $ltime[8] );
2607: }
2608:
1.370 www 2609: sub utc_string {
2610: my ($date)=@_;
1.371 www 2611: return strftime("%Y%m%dT%H%M%SZ",gmtime($date));
1.370 www 2612: }
2613:
1.51 www 2614: sub maketime {
2615: my %th=@_;
2616: return POSIX::mktime(
2617: ($th{'seconds'},$th{'minutes'},$th{'hours'},
1.210 www 2618: $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,-1));
1.70 www 2619: }
2620:
2621: #########################################
1.51 www 2622:
2623: sub findallcourses {
1.355 albertel 2624: my ($roles) = @_;
2625: my %roles;
2626: if (ref($roles)) { %roles = map { $_ => 1 } @{$roles}; }
1.348 albertel 2627: my %courses;
1.51 www 2628: my $now=time;
1.348 albertel 2629: foreach my $key (keys(%env)) {
2630: if ( $key=~m{^user\.role\.(\w+)\./(\w+)/(\w+)} ) {
2631: my ($role,$domain,$id) = ($1,$2,$3);
2632: next if ($role eq 'ca' || $role eq 'aa');
1.355 albertel 2633: next if (%roles && !exists($roles{$role}));
1.354 albertel 2634: my ($starttime,$endtime)=split(/\./,$env{$key});
1.51 www 2635: my $active=1;
2636: if ($starttime) {
2637: if ($now<$starttime) { $active=0; }
2638: }
2639: if ($endtime) {
2640: if ($now>$endtime) { $active=0; }
2641: }
1.348 albertel 2642: if ($active) { $courses{$domain.'_'.$id}=1; }
1.51 www 2643: }
2644: }
1.348 albertel 2645: return keys(%courses);
1.51 www 2646: }
1.37 matthew 2647:
1.54 www 2648: ###############################################
1.60 matthew 2649: ###############################################
2650:
2651: =pod
2652:
1.112 bowersj2 2653: =head1 Domain Template Functions
2654:
2655: =over 4
2656:
2657: =item * &determinedomain()
1.60 matthew 2658:
2659: Inputs: $domain (usually will be undef)
2660:
1.63 www 2661: Returns: Determines which domain should be used for designs
1.60 matthew 2662:
2663: =cut
1.54 www 2664:
1.60 matthew 2665: ###############################################
1.63 www 2666: sub determinedomain {
2667: my $domain=shift;
2668: if (! $domain) {
1.60 matthew 2669: # Determine domain if we have not been given one
2670: $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
1.258 albertel 2671: if ($env{'user.domain'}) { $domain=$env{'user.domain'}; }
2672: if ($env{'request.role.domain'}) {
2673: $domain=$env{'request.role.domain'};
1.60 matthew 2674: }
2675: }
1.63 www 2676: return $domain;
2677: }
2678: ###############################################
2679: =pod
2680:
1.112 bowersj2 2681: =item * &domainlogo()
1.63 www 2682:
2683: Inputs: $domain (usually will be undef)
2684:
2685: Returns: A link to a domain logo, if the domain logo exists.
2686: If the domain logo does not exist, a description of the domain.
2687:
2688: =cut
1.112 bowersj2 2689:
1.63 www 2690: ###############################################
2691: sub domainlogo {
2692: my $domain = &determinedomain(shift);
2693: # See if there is a logo
1.59 www 2694: if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') {
1.215 albertel 2695: my $logo=&lonhttpdurl("/adm/lonDomLogos/$domain.gif");
2696: return '<img src="'.$logo.'" alt="'.$domain.'" />';
1.60 matthew 2697: } elsif(exists($Apache::lonnet::domaindescription{$domain})) {
2698: return $Apache::lonnet::domaindescription{$domain};
1.59 www 2699: } else {
1.60 matthew 2700: return '';
1.59 www 2701: }
2702: }
1.63 www 2703: ##############################################
2704:
2705: =pod
2706:
1.112 bowersj2 2707: =item * &designparm()
1.63 www 2708:
2709: Inputs: $which parameter; $domain (usually will be undef)
2710:
2711: Returns: value of designparamter $which
2712:
2713: =cut
1.112 bowersj2 2714:
1.63 www 2715: ##############################################
2716: sub designparm {
2717: my ($which,$domain)=@_;
1.258 albertel 2718: if ($env{'browser.blackwhite'} eq 'on') {
1.110 www 2719: if ($which=~/\.(font|alink|vlink|link)$/) {
2720: return '#000000';
2721: }
2722: if ($which=~/\.(pgbg|sidebg)$/) {
2723: return '#FFFFFF';
2724: }
2725: if ($which=~/\.tabbg$/) {
2726: return '#CCCCCC';
2727: }
2728: }
1.258 albertel 2729: if ($env{'environment.color.'.$which}) {
2730: return $env{'environment.color.'.$which};
1.96 www 2731: }
1.63 www 2732: $domain=&determinedomain($domain);
2733: if ($designhash{$domain.'.'.$which}) {
2734: return $designhash{$domain.'.'.$which};
2735: } else {
2736: return $designhash{'default.'.$which};
2737: }
2738: }
1.59 www 2739:
1.60 matthew 2740: ###############################################
2741: ###############################################
2742:
2743: =pod
2744:
1.112 bowersj2 2745: =back
2746:
2747: =head1 HTTP Helpers
2748:
2749: =over 4
2750:
2751: =item * &bodytag()
1.60 matthew 2752:
2753: Returns a uniform header for LON-CAPA web pages.
2754:
2755: Inputs:
2756:
1.112 bowersj2 2757: =over 4
2758:
2759: =item * $title, A title to be displayed on the page.
2760:
2761: =item * $function, the current role (can be undef).
2762:
2763: =item * $addentries, extra parameters for the <body> tag.
2764:
2765: =item * $bodyonly, if defined, only return the <body> tag.
2766:
2767: =item * $domain, if defined, force a given domain.
2768:
2769: =item * $forcereg, if page should register as content page (relevant for
1.86 www 2770: text interface only)
1.60 matthew 2771:
1.326 albertel 2772: =item * $customtitle, alternate text to use instead of $title
2773: in the title box that appears, this text
2774: is not auto translated like the $title is
1.309 albertel 2775:
2776: =item * $notopbar, if true, keep the 'what is this' info but remove the
2777: navigational links
1.317 albertel 2778:
1.338 albertel 2779: =item * $bgcolor, used to override the bgcolor on a webpage to a specific value
2780:
2781: =item * $notitle, if true keep the nav controls, but remove the title bar
2782:
1.361 albertel 2783: =item * $no_inline_link, if true and in remote mode, don't show the
2784: 'Switch To Inline Menu' link
2785:
1.317 albertel 2786:
1.112 bowersj2 2787: =back
2788:
1.60 matthew 2789: Returns: A uniform header for LON-CAPA web pages.
2790: If $bodyonly is nonzero, a string containing a <body> tag will be returned.
2791: If $bodyonly is undef or zero, an html string containing a <body> tag and
2792: other decorations will be returned.
2793:
2794: =cut
2795:
1.54 www 2796: sub bodytag {
1.309 albertel 2797: my ($title,$function,$addentries,$bodyonly,$domain,$forcereg,$customtitle,
1.361 albertel 2798: $notopbar,$bgcolor,$notitle,$no_inline_link)=@_;
1.339 albertel 2799:
1.117 www 2800: $title=&mt($title);
1.339 albertel 2801:
1.183 matthew 2802: $function = &get_users_function() if (!$function);
1.339 albertel 2803: my $img = &designparm($function.'.img',$domain);
2804: my $font = &designparm($function.'.font',$domain);
2805: my $pgbg = $bgcolor || &designparm($function.'.pgbg',$domain);
2806:
2807: my %design = ( 'style' => 'margin-top: 0px',
2808: 'bgcolor' => $pgbg,
2809: 'text' => $font,
2810: 'alink' => &designparm($function.'.alink',$domain),
2811: 'vlink' => &designparm($function.'.vlink',$domain),
2812: 'link' => &designparm($function.'.link',$domain),);
2813: @$addentries{keys(%design)} = @design{keys(%design)};
2814:
1.63 www 2815: # role and realm
1.359 albertel 2816: my ($role,$realm) =
2817: &Apache::lonnet::plaintext((split(/\./,$env{'request.role'}))[0]);
1.55 www 2818: # realm
1.258 albertel 2819: if ($env{'request.course.id'}) {
1.359 albertel 2820: $realm = $env{'course.'.$env{'request.course.id'}.'.description'};
1.54 www 2821: }
1.359 albertel 2822: if (!$realm) { $realm=' '; }
1.55 www 2823: # Set messages
1.60 matthew 2824: my $messages=&domainlogo($domain);
1.101 www 2825: # Port for miniserver
1.83 albertel 2826: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
2827: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
1.330 albertel 2828:
2829: my $extra_body_attr = &make_attr_string($forcereg,$addentries);
1.329 albertel 2830:
1.101 www 2831: # construct main body tag
1.359 albertel 2832: my $bodytag = "<body $extra_body_attr>".
2833: &Apache::lontexconvert::init_math_support();
1.252 albertel 2834:
1.332 albertel 2835: if ($bodyonly
2836: || ($env{'request.state'} eq 'construct'
2837: && $env{'environment.remote'} ne 'off' )) {
1.60 matthew 2838: return $bodytag;
1.258 albertel 2839: } elsif ($env{'browser.interface'} eq 'textual') {
1.95 www 2840: # Accessibility
1.224 raeburn 2841:
1.337 albertel 2842: $bodytag.=&Apache::lonmenu::menubuttons($forcereg,$forcereg);
1.338 albertel 2843: if (!$notitle) {
1.337 albertel 2844: $bodytag.='<h1>LON-CAPA: '.$title.'</h1>';
2845: }
2846: return $bodytag;
1.359 albertel 2847: }
2848:
2849:
2850:
2851: my $roleinfo=(<<ENDROLE);
2852: <td class="LC_title_bar_who">
2853: <div class="LC_title_bar_name">
1.258 albertel 2854: $env{'environment.firstname'}
2855: $env{'environment.middlename'}
2856: $env{'environment.lastname'}
2857: $env{'environment.generation'}
1.361 albertel 2858:
1.359 albertel 2859: </div>
2860: <div class="LC_title_bar_role">
1.361 albertel 2861: $role
1.359 albertel 2862: </div>
2863: <div class="LC_title_bar_realm">
1.361 albertel 2864: $realm
1.359 albertel 2865: </div>
1.206 albertel 2866: </td>
2867: ENDROLE
1.235 raeburn 2868:
1.359 albertel 2869: my $titleinfo = '<span class="LC_title_bar_title">'.$title.'</span>';
2870: if ($customtitle) {
2871: $titleinfo = $customtitle;
2872: }
2873: #
2874: # Extra info if you are the DC
2875: my $dc_info = '';
2876: if ($env{'user.adv'} && exists($env{'user.role.dc./'.
2877: $env{'course.'.$env{'request.course.id'}.
2878: '.domain'}.'/'})) {
2879: my $cid = $env{'request.course.id'};
2880: $dc_info.= $cid.' '.$env{'course.'.$cid.'.internal.coursecode'};
2881: $dc_info = '('.$dc_info.')';
2882: }
2883:
2884: if ($env{'environment.remote'} eq 'off') {
2885: # No Remote
1.258 albertel 2886: if ($env{'request.state'} eq 'construct') {
1.359 albertel 2887: $forcereg=1;
2888: }
2889:
2890: if (!$customtitle && $env{'request.state'} eq 'construct') {
2891: # this is for resources; directories have customtitle, and crumbs
2892: # and select recent are created in lonpubdir.pm
1.229 albertel 2893: my ($uname,$thisdisfn)=
1.258 albertel 2894: ($env{'request.filename'} =~ m|^/home/([^/]+)/public_html/(.*)|);
1.229 albertel 2895: my $formaction='/priv/'.$uname.'/'.$thisdisfn;
2896: $formaction=~s/\/+/\//g;
2897:
1.359 albertel 2898: my $parentpath = '';
2899: my $lastitem = '';
2900: if ($thisdisfn =~ m-(.+/)([^/]*)$-) {
2901: $parentpath = $1;
2902: $lastitem = $2;
2903: } else {
2904: $lastitem = $thisdisfn;
2905: }
2906: $titleinfo =
2907: &Apache::loncommon::help_open_menu('','','','',3,'Authoring').
2908: '<b>Construction Space</b>: '.
2909: '<form name="dirs" method="post" action="'.$formaction
2910: .'" target="_top"><tt><b>'
2911: .&Apache::lonhtmlcommon::crumbs($uname.'/'.$parentpath,'_top','/priv','','+1',1)."<font size=\"+1\">$lastitem</font></b></tt><br />"
2912: .&Apache::lonhtmlcommon::select_recent('construct','recent','this.form.action=this.form.recent.value;this.form.submit()')
2913: .'</form>'
2914: .&Apache::lonmenu::constspaceform();
1.235 raeburn 2915: }
1.359 albertel 2916:
1.337 albertel 2917: my $titletable;
1.338 albertel 2918: if (!$notitle) {
1.337 albertel 2919: $titletable =
1.359 albertel 2920: '<table id="LC_title_bar">'.
2921: "<tr><td> $titleinfo $dc_info</td>".$roleinfo.
2922: '</tr></table>';
1.337 albertel 2923: }
1.359 albertel 2924: if ($notopbar) {
2925: $bodytag .= $titletable;
2926: } else {
2927: if ($env{'request.state'} eq 'construct') {
1.337 albertel 2928: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,$forcereg,
2929: $titletable);
1.272 raeburn 2930: } else {
1.336 albertel 2931: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,$forcereg).
1.359 albertel 2932: $titletable;
1.272 raeburn 2933: }
1.235 raeburn 2934: }
2935: return $bodytag;
1.94 www 2936: }
1.95 www 2937:
1.93 www 2938: #
1.95 www 2939: # Top frame rendering, Remote is up
1.93 www 2940: #
1.359 albertel 2941:
2942: my $upperleft='<img src="http://'.$ENV{'HTTP_HOST'}.':'.
2943: $lonhttpdPort.$img.'" alt="'.$function.'" />';
2944:
1.305 www 2945: # Explicit link to get inline menu
1.361 albertel 2946: my $menu= ($no_inline_link?''
2947: :'<br /><a href="/adm/remote?action=collapse">'.&mt('Switch to Inline Menu Mode').'</a>');
1.245 matthew 2948: #
1.338 albertel 2949: if ($notitle) {
1.337 albertel 2950: return $bodytag;
2951: }
1.94 www 2952: return(<<ENDBODY);
1.60 matthew 2953: $bodytag
1.359 albertel 2954: <table id="LC_title_bar" class="LC_with_remote">
1.368 albertel 2955: <tr><td class="LC_title_bar_role_logo">$upperleft</td>
1.359 albertel 2956: <td class="LC_title_bar_domain_logo">$messages </td>
1.54 www 2957: </tr>
1.359 albertel 2958: <tr><td>$titleinfo $dc_info $menu</td>
2959: $roleinfo
1.368 albertel 2960: </tr>
1.356 albertel 2961: </table>
1.54 www 2962: ENDBODY
1.182 matthew 2963: }
2964:
1.330 albertel 2965: sub make_attr_string {
2966: my ($register,$attr_ref) = @_;
2967:
2968: if ($attr_ref && !ref($attr_ref)) {
2969: die("addentries Must be a hash ref ".
2970: join(':',caller(1))." ".
2971: join(':',caller(0))." ");
2972: }
2973:
2974: if ($register) {
1.339 albertel 2975: my ($on_load,$on_unload);
2976: foreach my $key (keys(%{$attr_ref})) {
2977: if (lc($key) eq 'onload') {
2978: $on_load.=$attr_ref->{$key}.';';
2979: delete($attr_ref->{$key});
2980:
2981: } elsif (lc($key) eq 'onunload') {
2982: $on_unload.=$attr_ref->{$key}.';';
2983: delete($attr_ref->{$key});
2984: }
2985: }
2986: $attr_ref->{'onload'} =
2987: &Apache::lonmenu::loadevents(). $on_load;
2988: $attr_ref->{'onunload'}=
2989: &Apache::lonmenu::unloadevents().$on_unload;
2990: }
2991:
2992: # Accessibility font enhance
2993: if ($env{'browser.fontenhance'} eq 'on') {
2994: my $style;
2995: foreach my $key (keys(%{$attr_ref})) {
2996: if (lc($key) eq 'style') {
2997: $style.=$attr_ref->{$key}.';';
2998: delete($attr_ref->{$key});
2999: }
3000: }
3001: $attr_ref->{'style'}=$style.'; font-size: x-large;';
1.330 albertel 3002: }
1.339 albertel 3003:
3004: if ($env{'browser.blackwhite'} eq 'on') {
3005: delete($attr_ref->{'font'});
3006: delete($attr_ref->{'link'});
3007: delete($attr_ref->{'alink'});
3008: delete($attr_ref->{'vlink'});
3009: delete($attr_ref->{'bgcolor'});
3010: delete($attr_ref->{'background'});
3011: }
3012:
1.330 albertel 3013: my $attr_string;
3014: foreach my $attr (keys(%$attr_ref)) {
3015: $attr_string .= " $attr=\"".$attr_ref->{$attr}.'" ';
3016: }
3017: return $attr_string;
3018: }
3019:
3020:
1.182 matthew 3021: ###############################################
1.251 albertel 3022: ###############################################
3023:
3024: =pod
3025:
3026: =back
3027:
1.306 albertel 3028: =head1 HTML Helpers
1.251 albertel 3029:
3030: =over 4
3031:
3032: =item * &endbodytag()
3033:
3034: Returns a uniform footer for LON-CAPA web pages.
3035:
1.306 albertel 3036: Inputs: none
1.251 albertel 3037:
3038: =back
3039:
3040: =cut
3041:
3042: sub endbodytag {
3043: my $endbodytag='</body>';
1.269 albertel 3044: $endbodytag=&Apache::lontexconvert::jsMath_process()."\n".$endbodytag;
1.315 albertel 3045: if ( exists( $env{'internal.head.redirect'} ) ) {
3046: $endbodytag=
3047: "<br /><a href=\"$env{'internal.head.redirect'}\">".
3048: &mt('Continue').'</a>'.
3049: $endbodytag;
3050: }
1.251 albertel 3051: return $endbodytag;
3052: }
3053:
1.352 albertel 3054: =pod
3055:
3056: =over 4
3057:
3058: =item * &standard_css()
3059:
3060: Returns a style sheet
3061:
3062: Inputs: (all optional)
3063: domain -> force to color decorate a page for a specific
3064: domain
3065: function -> force usage of a specific rolish color scheme
3066: bgcolor -> override the default page bgcolor
3067:
3068: =back
3069:
3070: =cut
3071:
1.343 albertel 3072: sub standard_css {
1.345 albertel 3073: my ($function,$domain,$bgcolor) = @_;
1.352 albertel 3074: $function = &get_users_function() if (!$function);
3075: my $img = &designparm($function.'.img', $domain);
3076: my $tabbg = &designparm($function.'.tabbg', $domain);
3077: my $font = &designparm($function.'.font', $domain);
1.345 albertel 3078: my $sidebg = &designparm($function.'.sidebg',$domain);
1.352 albertel 3079: my $pgbg = $bgcolor ||
3080: &designparm($function.'.pgbg', $domain);
3081: my $alink = &designparm($function.'.alink', $domain);
3082: my $vlink = &designparm($function.'.vlink', $domain);
3083: my $link = &designparm($function.'.link', $domain);
3084:
3085: my $sans = 'Arial,Helvetica,sans-serif';
3086: my $data_table_head = $tabbg;
3087: my $data_table_light = '#EEEEEE';
3088: my $data_table_dark = '#DDD';
1.349 albertel 3089: my $data_table_highlight = '#FFFF00';
1.352 albertel 3090: my $mail_new = '#FFBB77';
3091: my $mail_new_hover = '#DD9955';
3092: my $mail_read = '#BBBB77';
3093: my $mail_read_hover = '#999944';
3094: my $mail_replied = '#AAAA88';
3095: my $mail_replied_hover = '#888855';
3096: my $mail_other = '#99BBBB';
3097: my $mail_other_hover = '#669999';
1.349 albertel 3098:
1.343 albertel 3099: return <<END;
1.345 albertel 3100: h1, h2, h3, th { font-family: $sans }
1.343 albertel 3101: a:focus { color: red; background: yellow }
3102: table.thinborder { border-collapse: collapse; }
3103: table.thinborder tr th, table.thinborder tr td { border-style: solid; border-width: 1px}
3104: form, .inline { display: inline; }
3105: .center { text-align: center; }
3106: .filename {font-family: monospace;}
1.350 albertel 3107: .LC_error {
3108: color: red;
3109: font-size: larger;
3110: }
3111: .LC_success {
3112: color: green;
3113: }
1.346 albertel 3114:
1.357 albertel 3115: table#LC_top_nav, table#LC_menubuttons, table#LC_nav_location, table#LC_breadcrumbs {
1.345 albertel 3116: width: 100%;
3117: background: $pgbg;
3118: border: 0px;
1.362 albertel 3119: border-spacing: 2px 1px;
1.345 albertel 3120: padding: 0px;
3121: margin: 0px;
3122: border-collapse: separate;
3123: }
1.359 albertel 3124: table#LC_title_bar {
3125: width: 100%;
3126: border: 0;
1.362 albertel 3127: border-spacing: 0px 1px;
1.368 albertel 3128: padding: 0px 2px 0px 2px;
1.359 albertel 3129: background: $pgbg;
3130: font-family: $sans;
1.372 ! albertel 3131: border-collapse: separate;
1.359 albertel 3132: }
3133: table#LC_title_bar.LC_with_remote {
3134: width: 100%;
3135: border: 0;
3136: border-spacing: 0;
3137: background: $pgbg;
3138: font-family: $sans;
3139: border-collapse: collapse;
3140: }
3141: table#LC_title_bar td {
3142: padding: 3px;
3143: background: $tabbg;
3144: }
3145: table#LC_title_bar td.LC_title_bar_who {
3146: background: $tabbg;
3147: color: $font;
3148: font: medium $sans;
3149: text-align: right;
3150: }
3151: span.LC_title_bar_title {
3152: font: bold xx-large $sans;
3153: }
3154: table#LC_title_bar td.LC_title_bar_domain_logo {
3155: background: $sidebg;
3156: text-align: right;
1.368 albertel 3157: padding: 0px;
3158: }
3159: table#LC_title_bar td.LC_title_bar_role_logo {
3160: background: $sidebg;
3161: padding: 0px;
1.359 albertel 3162: }
3163:
1.346 albertel 3164: table#LC_menubuttons_mainmenu {
3165: background: $pgbg;
3166: border: 0px;
3167: border-spacing: 1px;
1.372 ! albertel 3168: padding: 0px 1px;
1.346 albertel 3169: margin: 0px;
3170: border-collapse: separate;
3171: }
3172: table#LC_menubuttons img, table#LC_menubuttons_mainmenu img {
3173: border: 0px;
3174: }
1.345 albertel 3175: table#LC_top_nav td {
3176: background: $tabbg;
3177: }
3178: table#LC_top_nav td a, div#LC_top_nav a {
3179: color: $font;
3180: font-family: $sans;
3181: }
1.364 albertel 3182: table#LC_top_nav td.LC_top_nav_logo {
3183: background: $tabbg;
3184: text-align: right;
3185: }
1.357 albertel 3186: table#LC_breadcrumbs td {
3187: background: $tabbg;
3188: color: $font;
3189: font-family: $sans;
1.358 albertel 3190: font-size: smaller;
1.357 albertel 3191: }
3192: table#LC_breadcrumbs td.LC_breadcrumb_component {
3193: background: $tabbg;
3194: color: $font;
3195: font-family: $sans;
3196: font-size: larger;
3197: text-align: right;
3198: }
1.346 albertel 3199: .LC_menubuttons_inline_text {
3200: color: $font;
3201: font-family: $sans;
3202: font-size: smaller;
3203: }
3204:
3205: td.LC_menubuttons_text {
3206: color: $font;
3207: font-family: $sans;
3208: }
3209: td.LC_menubuttons_img {
3210: background: $tabbg;
3211: }
3212: .LC_current_location {
3213: font-family: $sans;
3214: background: $tabbg;
3215: }
3216: .LC_new_mail {
3217: font-family: $sans;
3218: font-weight: bold;
3219: }
1.347 albertel 3220:
1.349 albertel 3221: table.LC_data_table, table.LC_mail_list {
1.347 albertel 3222: border: 1px solid #000000;
3223: border-collapse: seperate;
3224: }
1.349 albertel 3225: table.LC_data_table tr th, table.LC_calendar tr th, table.LC_mail_list tr th {
3226: font-weight: bold;
3227: background-color: $data_table_head;
1.347 albertel 3228: }
3229: table.LC_data_table tr td {
1.349 albertel 3230: background-color: $data_table_light;
1.347 albertel 3231: }
3232: table.LC_data_table tr.LC_even_row td {
1.349 albertel 3233: background-color: $data_table_dark;
1.347 albertel 3234: }
3235: table.LC_data_table tr.LC_empty td {
3236: background-color: #FFFFFF;
3237: }
3238:
1.349 albertel 3239: table.LC_calendar {
3240: border: 1px solid #000000;
3241: border-collapse: collapse;
3242: }
3243: table.LC_calendar_pickdate {
3244: font-size: xx-small;
3245: }
3246: table.LC_calendar tr td {
3247: border: 1px solid #000000;
3248: vertical-align: top;
3249: }
3250: table.LC_calendar tr td.LC_calendar_day_empty {
3251: background-color: $data_table_dark;
3252: }
3253: table.LC_calendar tr td.LC_calendar_day_current {
3254: background-color: $data_table_highlight;
3255: }
3256:
3257: table.LC_mail_list tr.LC_mail_new {
3258: background-color: $mail_new;
3259: }
3260: table.LC_mail_list tr.LC_mail_new:hover {
3261: background-color: $mail_new_hover;
3262: }
3263: table.LC_mail_list tr.LC_mail_read {
3264: background-color: $mail_read;
3265: }
3266: table.LC_mail_list tr.LC_mail_read:hover {
3267: background-color: $mail_read_hover;
3268: }
3269: table.LC_mail_list tr.LC_mail_replied {
3270: background-color: $mail_replied;
3271: }
3272: table.LC_mail_list tr.LC_mail_replied:hover {
3273: background-color: $mail_replied_hover;
3274: }
3275: table.LC_mail_list tr.LC_mail_other {
3276: background-color: $mail_other;
3277: }
3278: table.LC_mail_list tr.LC_mail_other:hover {
3279: background-color: $mail_other_hover;
3280: }
1.343 albertel 3281: END
3282: }
3283:
1.306 albertel 3284: =pod
3285:
3286: =over 4
3287:
3288: =item * &headtag()
3289:
3290: Returns a uniform footer for LON-CAPA web pages.
3291:
1.307 albertel 3292: Inputs: $title - optional title for the head
3293: $head_extra - optional extra HTML to put inside the <head>
1.315 albertel 3294: $args - optional arguments
1.319 albertel 3295: force_register - if is true call registerurl so the remote is
3296: informed
1.352 albertel 3297: redirect -> array ref of seconds before redirect occurs
1.315 albertel 3298: url to redirect to
3299: (side effect of setting
3300: $env{'internal.head.redirect'} to the url
3301: redirected too)
1.352 albertel 3302: domain -> force to color decorate a page for a specific
3303: domain
3304: function -> force usage of a specific rolish color scheme
3305: bgcolor -> override the default page bgcolor
3306:
1.306 albertel 3307: =back
3308:
3309: =cut
3310:
3311: sub headtag {
1.313 albertel 3312: my ($title,$head_extra,$args) = @_;
1.306 albertel 3313:
1.363 albertel 3314: my $function = $args->{'function'} || &get_users_function();
3315: my $domain = $args->{'domain'} || &determinedomain();
3316: my $bgcolor = $args->{'bgcolor'} || &designparm($function.'.pgbg',$domain);
3317: my $url = join(':',$env{'user.name'},$env{'user.domain'},
3318: $env{'environment.color.timestamp'},
3319: $function,$domain,$bgcolor);
3320:
1.369 www 3321: $url = '/adm/css/'.&escape($url).'.css';
1.363 albertel 3322:
1.308 albertel 3323: my $result =
3324: '<head>'.
1.363 albertel 3325: '<link rel="stylesheet" type="text/css" href="'.$url.'" />'.
1.340 albertel 3326: &font_settings().
1.308 albertel 3327: &Apache::lonhtmlcommon::htmlareaheaders();
1.319 albertel 3328:
3329: if ($args->{'force_register'}) {
3330: $result .= &Apache::lonmenu::registerurl(1);
3331: }
3332:
1.314 albertel 3333: if (ref($args->{'redirect'})) {
3334: my ($time,$url) = @{$args->{'redirect'}};
1.315 albertel 3335: $url = &Apache::lonenc::check_encrypt($url);
3336: $env{'internal.head.redirect'} = $url;
1.313 albertel 3337: $result.=<<ADDMETA
3338: <meta http-equiv="pragma" content="no-cache" />
1.344 albertel 3339: <meta http-equiv="Refresh" content="$time; url=$url" />
1.313 albertel 3340: ADDMETA
3341: }
1.306 albertel 3342: if (!defined($title)) {
3343: $title = 'The LearningOnline Network with CAPA';
3344: }
3345:
1.315 albertel 3346: $result .= '<title> LON-CAPA '.&mt($title).'</title>'.$head_extra;
1.306 albertel 3347: return $result;
3348: }
3349:
3350: =pod
3351:
3352: =over 4
3353:
1.340 albertel 3354: =item * &font_settings()
3355:
3356: Returns neccessary <meta> to set the proper encoding
3357:
3358: Inputs: none
3359:
3360: =back
3361:
3362: =cut
3363:
3364: sub font_settings {
3365: my $headerstring='';
3366: if (($env{'browser.os'} eq 'mac') && (!$env{'browser.mathml'})) {
3367: $headerstring.=
3368: '<meta Content-Type="text/html; charset=x-mac-roman" />';
3369: } elsif (!$env{'browser.mathml'} && $env{'browser.unicode'}) {
3370: $headerstring.=
3371: '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
3372: }
3373: return $headerstring;
3374: }
3375:
1.341 albertel 3376: =pod
3377:
3378: =over 4
3379:
3380: =item * &xml_begin()
3381:
3382: Returns the needed doctype and <html>
3383:
3384: Inputs: none
3385:
3386: =back
3387:
3388: =cut
3389:
3390: sub xml_begin {
3391: my $output='';
3392:
1.342 albertel 3393: &Apache::lonhtmlcommon::init_htmlareafields();
3394:
1.341 albertel 3395: if ($env{'browser.mathml'}) {
3396: $output='<?xml version="1.0"?>'
3397: #.'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>'."\n"
3398: # .'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" '
3399:
3400: # .'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" [<!ENTITY mathns "http://www.w3.org/1998/Math/MathML">] >'
3401: .'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd">'
3402: .'<html xmlns:math="http://www.w3.org/1998/Math/MathML" '
3403: .'xmlns="http://www.w3.org/1999/xhtml">';
3404: } else {
3405: $output='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html>';
3406: }
3407: return $output;
3408: }
1.340 albertel 3409:
3410: =pod
3411:
3412: =over 4
3413:
1.306 albertel 3414: =item * &endheadtag()
3415:
3416: Returns a uniform </head> for LON-CAPA web pages.
3417:
3418: Inputs: none
3419:
3420: =back
3421:
3422: =cut
3423:
3424: sub endheadtag {
3425: return '</head>';
3426: }
3427:
3428: =pod
3429:
3430: =over 4
3431:
3432: =item * &head()
3433:
3434: Returns a uniform complete <head>..</head> section for LON-CAPA web pages.
3435:
3436: Inputs: $title - optional title for the page
1.307 albertel 3437: $head_extra - optional extra HTML to put inside the <head>
1.306 albertel 3438: =back
3439:
3440: =cut
3441:
3442: sub head {
1.325 albertel 3443: my ($title,$head_extra,$args) = @_;
3444: return &headtag($title,$head_extra,$args).&endheadtag();
1.306 albertel 3445: }
3446:
3447: =pod
3448:
3449: =over 4
3450:
3451: =item * &start_page()
3452:
3453: Returns a complete <html> .. <body> section for LON-CAPA web pages.
3454:
3455: Inputs: $title - optional title for the page
3456: $head_extra - optional extra HTML to incude inside the <head>
1.315 albertel 3457: $args - additional optional args supported are:
1.317 albertel 3458: only_body -> is true will set &bodytag() onlybodytag
3459: arg on
3460: no_nav_bar -> is true will set &bodytag() notopbar arg on
3461: add_entries -> additional attributes to add to the <body>
3462: domain -> force to color decorate a page for a
3463: specific domain
3464: function -> force usage of a specific rolish color
3465: scheme
3466: redirect -> see &headtag()
3467: bgcolor -> override the default page bg color
3468: js_ready -> return a string ready for being used in
3469: a javascript writeln
1.320 albertel 3470: html_encode -> return a string ready for being used in
3471: a html attribute
1.317 albertel 3472: force_register -> if is true will turn on the &bodytag()
3473: $forcereg arg
1.326 albertel 3474: body_title -> alternate text to use instead of $title
3475: in the title box that appears, this text
3476: is not auto translated like the $title is
1.330 albertel 3477: frameset -> if true will start with a <frameset>
3478: rather than <body>
1.338 albertel 3479: no_title -> if true the title bar won't be shown
3480: skip_phases -> hash ref of
3481: head -> skip the <html><head> generation
3482: body -> skip all <body> generation
1.337 albertel 3483:
1.361 albertel 3484: no_inline_link -> if true and in remote mode, don't show the
3485: 'Switch To Inline Menu' link
3486:
1.306 albertel 3487: =back
3488:
3489: =cut
3490:
3491: sub start_page {
1.309 albertel 3492: my ($title,$head_extra,$args) = @_;
1.318 albertel 3493: #&Apache::lonnet::logthis("start_page ".join(':',caller(0)));
1.313 albertel 3494: my %head_args;
1.352 albertel 3495: foreach my $arg ('redirect','force_register','domain','function',
3496: 'bgcolor') {
1.319 albertel 3497: if (defined($args->{$arg})) {
1.324 raeburn 3498: $head_args{$arg} = $args->{$arg};
1.319 albertel 3499: }
1.313 albertel 3500: }
1.319 albertel 3501:
1.315 albertel 3502: $env{'internal.start_page'}++;
1.338 albertel 3503: my $result;
3504: if (! exists($args->{'skip_phases'}{'head'}) ) {
3505: $result.=
1.341 albertel 3506: &xml_begin().
1.338 albertel 3507: &headtag($title,$head_extra,\%head_args).&endheadtag();
3508: }
3509:
3510: if (! exists($args->{'skip_phases'}{'body'}) ) {
3511: if ($args->{'frameset'}) {
3512: my $attr_string = &make_attr_string($args->{'force_register'},
3513: $args->{'add_entries'});
3514: $result .= "\n<frameset $attr_string>\n";
3515: } else {
3516: $result .=
3517: &bodytag($title,
3518: $args->{'function'}, $args->{'add_entries'},
3519: $args->{'only_body'}, $args->{'domain'},
3520: $args->{'force_register'}, $args->{'body_title'},
3521: $args->{'no_nav_bar'}, $args->{'bgcolor'},
1.361 albertel 3522: $args->{'no_title'}, $args->{'no_inline_link'});
1.338 albertel 3523: }
1.330 albertel 3524: }
1.338 albertel 3525:
1.315 albertel 3526: if ($args->{'js_ready'}) {
1.317 albertel 3527: $result = &js_ready($result);
1.315 albertel 3528: }
1.320 albertel 3529: if ($args->{'html_encode'}) {
3530: $result = &html_encode($result);
3531: }
1.315 albertel 3532: return $result;
1.306 albertel 3533: }
3534:
1.330 albertel 3535:
1.306 albertel 3536: =pod
3537:
3538: =over 4
3539:
3540: =item * &head()
3541:
3542: Returns a complete </body></html> section for LON-CAPA web pages.
3543:
1.315 albertel 3544: Inputs: $args - additional optional args supported are:
3545: js_ready -> return a string ready for being used in
3546: a javascript writeln
1.320 albertel 3547: html_encode -> return a string ready for being used in
3548: a html attribute
1.330 albertel 3549: frameset -> if true will start with a <frameset>
3550: rather than <body>
1.306 albertel 3551: =back
3552:
3553: =cut
3554:
3555: sub end_page {
1.315 albertel 3556: my ($args) = @_;
3557: $env{'internal.end_page'}++;
1.330 albertel 3558: my $result;
1.335 albertel 3559: if ($args->{'discussion'}) {
3560: my ($target,$parser);
3561: if (ref($args->{'discussion'})) {
3562: ($target,$parser) =($args->{'discussion'}{'target'},
3563: $args->{'discussion'}{'parser'});
3564: }
3565: $result .= &Apache::lonxml::xmlend($target,$parser);
3566: }
3567:
1.330 albertel 3568: if ($args->{'frameset'}) {
3569: $result .= '</frameset>';
3570: } else {
3571: $result .= &endbodytag();
3572: }
3573: $result .= "\n</html>";
3574:
1.315 albertel 3575: if ($args->{'js_ready'}) {
1.317 albertel 3576: $result = &js_ready($result);
1.315 albertel 3577: }
1.335 albertel 3578:
1.320 albertel 3579: if ($args->{'html_encode'}) {
3580: $result = &html_encode($result);
3581: }
1.335 albertel 3582:
1.315 albertel 3583: return $result;
3584: }
3585:
1.320 albertel 3586: sub html_encode {
3587: my ($result) = @_;
3588:
1.322 albertel 3589: $result = &HTML::Entities::encode($result,'<>&"');
1.320 albertel 3590:
3591: return $result;
3592: }
1.317 albertel 3593: sub js_ready {
3594: my ($result) = @_;
3595:
1.323 albertel 3596: $result =~ s/[\n\r]/ /xmsg;
3597: $result =~ s/\\/\\\\/xmsg;
3598: $result =~ s/'/\\'/xmsg;
1.372 ! albertel 3599: $result =~ s{</}{<\\/}xmsg;
1.317 albertel 3600:
3601: return $result;
3602: }
3603:
1.315 albertel 3604: sub validate_page {
3605: if ( exists($env{'internal.start_page'})
1.316 albertel 3606: && $env{'internal.start_page'} > 1) {
3607: &Apache::lonnet::logthis('start_page called multiple times '.
1.318 albertel 3608: $env{'internal.start_page'}.' '.
1.316 albertel 3609: $ENV{'request.filename'});
1.315 albertel 3610: }
3611: if ( exists($env{'internal.end_page'})
1.316 albertel 3612: && $env{'internal.end_page'} > 1) {
3613: &Apache::lonnet::logthis('end_page called multiple times '.
1.318 albertel 3614: $env{'internal.end_page'}.' '.
1.316 albertel 3615: $env{'request.filename'});
1.315 albertel 3616: }
3617: if ( exists($env{'internal.start_page'})
3618: && ! exists($env{'internal.end_page'})) {
1.316 albertel 3619: &Apache::lonnet::logthis('start_page called without end_page '.
3620: $env{'request.filename'});
1.315 albertel 3621: }
3622: if ( ! exists($env{'internal.start_page'})
3623: && exists($env{'internal.end_page'})) {
1.316 albertel 3624: &Apache::lonnet::logthis('end_page called without start_page'.
3625: $env{'request.filename'});
1.315 albertel 3626: }
1.306 albertel 3627: }
1.315 albertel 3628:
1.318 albertel 3629: sub simple_error_page {
3630: my ($r,$title,$msg) = @_;
3631: my $page =
3632: &Apache::loncommon::start_page($title).
3633: &mt($msg).
3634: &Apache::loncommon::end_page();
3635: if (ref($r)) {
3636: $r->print($page);
1.327 albertel 3637: return;
1.318 albertel 3638: }
3639: return $page;
3640: }
1.347 albertel 3641:
3642: {
3643: my $row_count;
3644: sub start_data_table {
3645: undef($row_count);
3646: return '<table class="LC_data_table">';
3647: }
3648:
3649: sub end_data_table {
3650: undef($row_count);
3651: return '</table>';
3652: }
3653:
3654: sub start_data_table_row {
3655: $row_count++;
3656: return '<tr '.(($row_count % 2)?'':'class="LC_even_row"').'>';
3657: }
3658:
3659: sub end_data_table_row {
3660: return '</tr>';
3661: }
1.367 www 3662:
3663: sub start_data_table_header_row {
3664: return '<tr class="LC_header_row">';
3665: }
3666:
3667: sub end_data_table_header_row {
3668: return '</tr>';
3669: }
1.347 albertel 3670: }
3671:
1.251 albertel 3672: ###############################################
1.182 matthew 3673:
3674: =pod
3675:
1.306 albertel 3676: =over 4
3677:
1.182 matthew 3678: =item get_users_function
3679:
3680: Used by &bodytag to determine the current users primary role.
3681: Returns either 'student','coordinator','admin', or 'author'.
3682:
3683: =cut
3684:
3685: ###############################################
3686: sub get_users_function {
3687: my $function = 'student';
1.258 albertel 3688: if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
1.182 matthew 3689: $function='coordinator';
3690: }
1.258 albertel 3691: if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
1.182 matthew 3692: $function='admin';
3693: }
1.258 albertel 3694: if (($env{'request.role'}=~/^(au|ca)/) ||
1.182 matthew 3695: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
3696: $function='author';
3697: }
3698: return $function;
1.54 www 3699: }
1.99 www 3700:
3701: ###############################################
3702:
1.233 raeburn 3703: =pod
3704:
1.274 raeburn 3705: =item check_user_status
3706:
3707: Determines current status of supplied role for a
3708: specific user. Roles can be active, previous or future.
3709:
3710: Inputs:
3711: user's domain, user's username, course's domain,
3712: course's number, optional section/group.
3713:
3714: Outputs:
3715: role status: active, previous or future.
3716:
3717: =cut
3718:
3719: sub check_user_status {
3720: my ($udom,$uname,$cdom,$crs,$role,$secgrp) = @_;
3721: my %userinfo = &Apache::lonnet::dump('roles',$udom,$uname);
3722: my @uroles = keys %userinfo;
3723: my $srchstr;
3724: my $active_chk = 'none';
3725: if (@uroles > 0) {
3726: if (($role eq 'cc') || ($secgrp eq '') || (!defined($secgrp))) {
3727: $srchstr = '/'.$cdom.'/'.$crs.'_'.$role;
3728: } else {
3729: $srchstr = '/'.$cdom.'/'.$crs.'/'.$secgrp.'_'.$role; }
3730: if (grep/^$srchstr$/,@uroles) {
3731: my $role_end = 0;
3732: my $role_start = 0;
3733: $active_chk = 'active';
3734: if ($userinfo{$srchstr} =~ m/^($role)_(\d+)/) {
3735: $role_end = $2;
3736: if ($userinfo{$srchstr} =~ m/^($role)_($role_end)_(\d+)$/) {
3737: $role_start = $3;
3738: }
3739: }
3740: if ($role_start > 0) {
3741: if (time < $role_start) {
3742: $active_chk = 'future';
3743: }
3744: }
3745: if ($role_end > 0) {
3746: if (time > $role_end) {
3747: $active_chk = 'previous';
3748: }
3749: }
3750: }
3751: }
3752: return $active_chk;
3753: }
3754:
3755: ###############################################
3756:
3757: =pod
3758:
1.233 raeburn 3759: =item get_sections
3760:
3761: Determines all the sections for a course including
3762: sections with students and sections containing other roles.
3763: Incoming parameters: domain, course number, reference to
3764: section hash (keys to be section/group IDs), reference to
3765: array containing roles for which sections should be gathered
3766: (optional). If the fourth argument is undefined, sections
3767: are gathered for any role.
3768:
3769: Returns number of sections.
3770:
3771: =cut
3772:
3773: ###############################################
3774: sub get_sections {
1.366 albertel 3775: my ($cdom,$cnum,$possible_roles) = @_;
3776: if (!defined($cdom) || !defined($cnum)) {
3777: my $cid = $env{'request.course.id'};
3778:
3779: return if (!defined($cid));
3780:
3781: $cdom = $env{'course.'.$cid.'.domain'};
3782: $cnum = $env{'course.'.$cid.'.num'};
3783: }
3784:
3785: my %sectioncount;
1.240 albertel 3786:
1.366 albertel 3787: if (!defined($possible_roles) || (grep(/^st$/,@$possible_roles))) {
1.276 albertel 3788: my ($classlist) = &Apache::loncoursedata::get_classlist($cdom,$cnum);
1.240 albertel 3789: my $sec_index = &Apache::loncoursedata::CL_SECTION();
3790: my $status_index = &Apache::loncoursedata::CL_STATUS();
1.366 albertel 3791: while (my ($student,$data) = each(%$classlist)) {
1.240 albertel 3792: my ($section,$status) = ($data->[$sec_index],
3793: $data->[$status_index]);
3794: unless ($section eq '-1' || $section =~ /^\s*$/) {
1.366 albertel 3795: $sectioncount{$section}++;
1.240 albertel 3796: }
3797: }
3798: }
3799: my %courseroles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
3800: foreach my $user (sort(keys(%courseroles))) {
3801: if ($user !~ /^(\w{2})/) { next; }
3802: my ($role) = ($user =~ /^(\w{2})/);
3803: if ($possible_roles && !(grep(/^$role$/,@$possible_roles))) { next; }
3804: my $section;
3805: if ($role eq 'cr' &&
3806: $user =~ m-^$role/[^/]*/[^/]*/[^/]*:[^:]*:[^:]*:(\w+)-) {
3807: $section=$1;
3808: }
3809: if ($user =~ /^$role:[^:]*:[^:]*:(\w+)/) { $section=$1; }
3810: if (!defined($section) || $section eq '-1') { next; }
1.366 albertel 3811: $sectioncount{$section}++;
1.233 raeburn 3812: }
1.366 albertel 3813: return %sectioncount;
1.233 raeburn 3814: }
3815:
1.274 raeburn 3816: ###############################################
1.298 raeburn 3817:
3818: =pod
3819:
3820: =item coursegroups
3821:
3822: Retrieve information about groups in a course,
3823:
3824: Input:
3825: 1. Reference to hash to populate with group information.
3826: 2. Optional course domain
3827: 3. Optional course number
3828: 4. Optional group name
3829:
3830: Course domain and number will be taken from user's
3831: environment if not supplied. Optional group name will'
3832: be passed to lonnet::get_coursegroups() as a regexp to
3833: use in the call to the dump function.
3834:
3835: Output
3836: Returns number of groups in the course (subject to the
3837: optional group name filter).
3838:
3839: Side effects:
3840: Populates the referenced curr_groups hash, with key,
3841: value pairs. Keys are group names, corresponding values
3842: are scalars containing group information in XML. This
3843: can be sent to &get_group_settings() to be parsed.
3844:
3845: =cut
3846:
3847: ###############################################
3848:
3849: sub coursegroups {
1.365 albertel 3850: my ($cdom,$cnum,$group) = @_;
1.298 raeburn 3851: if (!defined($cdom) || !defined($cnum)) {
3852: my $cid = $env{'request.course.id'};
1.365 albertel 3853:
3854: return if (!defined($cid));
3855:
1.298 raeburn 3856: $cdom = $env{'course.'.$cid.'.domain'};
3857: $cnum = $env{'course.'.$cid.'.num'};
3858: }
1.365 albertel 3859: my %curr_groups = &Apache::lonnet::get_coursegroups($cdom,$cnum,$group);
3860: my ($tmp) = keys(%curr_groups);
3861: if ($tmp=~/^(con_lost|no_such_host|error: [^2] )/) {
3862: undef(%curr_groups);
3863: &logthis('Error retrieving groups: '.$tmp.' in '.$cnum.':'.$cdom);
3864: } elsif ($tmp=~/^error: 2 /) {
3865: undef(%curr_groups);
1.298 raeburn 3866: }
1.365 albertel 3867: return %curr_groups;
1.298 raeburn 3868: }
3869:
3870: ###############################################
1.274 raeburn 3871:
1.275 raeburn 3872: =pod
1.294 raeburn 3873:
3874: =item get_group_settings
3875:
3876: Uses TokeParser to extract group information from the
3877: XML used to describe course groups.
3878:
3879: Input:
1.298 raeburn 3880: Scalar containing XML - as retrieved from &coursegroups().
1.294 raeburn 3881:
3882: Output:
3883: Hash containing group information as key=values for (a), and
3884: hash of hashes for (b)
3885:
3886: Keys (in two categories):
3887: (a) groupname, creator, creation, modified, startdate,enddate.
3888: Corresponding values are name of the group, creator of the group
3889: (username:domain), UNIX time for date group was created, and
3890: settings were last modified, and default start and end access
3891: times for group members.
3892:
3893: (b) functions returned in hash of hashes.
3894: Outer hash key is functions.
3895: Inner hash keys are chat,discussion,email,files,homepage,roster.
3896: Corresponding values are either on or off, depending on
1.303 raeburn 3897: whether this type of functionality is available for the group.
1.294 raeburn 3898:
3899: =cut
3900:
3901: ###############################################
3902:
3903: sub get_group_settings {
3904: my ($groupinfo)=@_;
3905: my $parser=HTML::TokeParser->new(\$groupinfo);
3906: my $token;
3907: my $tool = '';
1.303 raeburn 3908: my $role = '';
1.294 raeburn 3909: my %content=();
3910: while ($token=$parser->get_token) {
3911: if ($token->[0] eq 'S') {
3912: my $entry=$token->[1];
1.303 raeburn 3913: if ($entry eq 'functions' || $entry eq 'autosec') {
1.294 raeburn 3914: %{$content{$entry}} = ();
3915: $tool = $entry;
1.303 raeburn 3916: } elsif ($entry eq 'role') {
3917: if ($tool eq 'autosec') {
3918: $role = $token->[2]{id};
3919: }
1.294 raeburn 3920: } else {
3921: my $value=$parser->get_text('/'.$entry);
3922: if ($entry eq 'name') {
3923: if ($tool eq 'functions') {
3924: my $function = $token->[2]{id};
3925: $content{$tool}{$function} = $value;
3926: }
3927: } elsif ($entry eq 'groupname') {
1.369 www 3928: $content{$entry}=&unescape($value);
1.303 raeburn 3929: } elsif (($entry eq 'roles') || ($entry eq 'types') ||
3930: ($entry eq 'sectionpick') || ($entry eq 'defpriv')) {
3931: push(@{$content{$entry}},$value);
3932: } elsif ($entry eq 'section') {
3933: if ($tool eq 'autosec' && $role ne '') {
3934: push(@{$content{$tool}{$role}},$value);
3935: }
1.294 raeburn 3936: } else {
3937: $content{$entry}=$value;
3938: }
3939: }
3940: } elsif ($token->[0] eq 'E') {
1.303 raeburn 3941: if ($token->[1] eq 'functions' || $token->[1] eq 'autosec') {
1.294 raeburn 3942: $tool = '';
1.303 raeburn 3943: } elsif ($token->[1] eq 'role') {
3944: $role = '';
1.294 raeburn 3945: }
1.303 raeburn 3946:
1.294 raeburn 3947: }
3948: }
3949: return %content;
3950: }
3951:
3952: sub check_group_access {
3953: my ($group) = @_;
3954: my $access = 1;
3955: my $now = time;
3956: my ($start,$end) = split(/\./,$env{'user.role.gr/'.$env{'request.course,id'}.'/'.$group});
3957: if (($end!=0) && ($end<$now)) { $access = 0; }
3958: if (($start!=0) && ($start>$now)) { $access=0; }
3959: return $access;
3960: }
3961:
3962: ###############################################
3963:
3964: =pod
1.275 raeburn 3965:
3966: =item get_course_users
3967:
3968: Retrieves usernames:domains for users in the specified course
3969: with specific role(s), and access status.
3970:
3971: Incoming parameters:
1.277 albertel 3972: 1. course domain
3973: 2. course number
3974: 3. access status: users must have - either active,
1.275 raeburn 3975: previous, future, or all.
1.277 albertel 3976: 4. reference to array of permissible roles
1.288 raeburn 3977: 5. reference to array of section restrictions (optional)
3978: 6. reference to results object (hash of hashes).
3979: 7. reference to optional userdata hash
1.275 raeburn 3980: Keys of top level hash are roles.
3981: Keys of inner hashes are username:domain, with
3982: values set to access type.
1.288 raeburn 3983: Optional userdata hash returns an array with arguments in the
3984: same order as loncoursedata::get_classlist() for student data.
3985:
3986: Entries for end, start, section and status are blank because
3987: of the possibility of multiple values for non-student roles.
3988:
1.275 raeburn 3989: =cut
3990:
3991: ###############################################
3992:
3993: sub get_course_users {
1.288 raeburn 3994: my ($cdom,$cnum,$types,$roles,$sections,$users,$userdata) = @_;
3995: my %idx = ();
3996:
3997: $idx{udom} = &Apache::loncoursedata::CL_SDOM();
3998: $idx{uname} = &Apache::loncoursedata::CL_SNAME();
3999: $idx{end} = &Apache::loncoursedata::CL_END();
4000: $idx{start} = &Apache::loncoursedata::CL_START();
4001: $idx{id} = &Apache::loncoursedata::CL_ID();
4002: $idx{section} = &Apache::loncoursedata::CL_SECTION();
4003: $idx{fullname} = &Apache::loncoursedata::CL_FULLNAME();
4004: $idx{status} = &Apache::loncoursedata::CL_STATUS();
4005:
1.290 albertel 4006: if (grep(/^st$/,@{$roles})) {
1.276 albertel 4007: my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist($cdom,$cnum);
1.278 raeburn 4008: my $now = time;
1.277 albertel 4009: foreach my $student (keys(%{$classlist})) {
1.288 raeburn 4010: my $match = 0;
1.291 albertel 4011: if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
1.290 albertel 4012: unless(grep(/^\Q$$classlist{$student}[$idx{section}]\E$/,
4013: @{$sections})) {
4014: next;
4015: }
1.288 raeburn 4016: }
1.275 raeburn 4017: if (defined($$types{'active'})) {
1.288 raeburn 4018: if ($$classlist{$student}[$idx{status}] eq 'Active') {
1.275 raeburn 4019: push(@{$$users{st}{$student}},'active');
1.288 raeburn 4020: $match = 1;
1.275 raeburn 4021: }
4022: }
4023: if (defined($$types{'previous'})) {
1.288 raeburn 4024: if ($$classlist{$student}[$idx{end}] <= $now) {
1.275 raeburn 4025: push(@{$$users{st}{$student}},'previous');
1.288 raeburn 4026: $match = 1;
1.275 raeburn 4027: }
4028: }
4029: if (defined($$types{'future'})) {
1.288 raeburn 4030: if (($$classlist{$student}[$idx{start}] > $now) && ($$classlist{$student}[$idx{end}] > $now) || ($$classlist{$student}[$idx{end}] == 0) || ($$classlist{$student}[$idx{end}] eq '')) {
1.275 raeburn 4031: push(@{$$users{st}{$student}},'future');
1.288 raeburn 4032: $match = 1;
1.275 raeburn 4033: }
4034: }
1.288 raeburn 4035: if ($match && defined($userdata)) {
4036: $$userdata{$student} = $$classlist{$student};
4037: }
1.275 raeburn 4038: }
4039: }
4040: if ((@{$roles} > 0) && (@{$roles} ne "st")) {
4041: my @coursepersonnel = &Apache::lonnet::getkeys('nohist_userroles',$cdom,$cnum);
4042: foreach my $person (@coursepersonnel) {
1.288 raeburn 4043: my $match = 0;
1.275 raeburn 4044: my ($role,$user) = ($person =~ /^([^:]*):([^:]+:[^:]+)/);
4045: $user =~ s/:$//;
1.290 albertel 4046: if (($role) && (grep(/^\Q$role\E$/,@{$roles}))) {
1.288 raeburn 4047: my ($uname,$udom,$usec) = split(/:/,$user);
1.290 albertel 4048: if ($usec ne '' && (ref($sections) eq 'ARRAY') &&
4049: @{$sections} > 0) {
4050: unless(grep(/^\Q$usec\E$/,@{$sections})) {
4051: next;
4052: }
1.288 raeburn 4053: }
1.275 raeburn 4054: if ($uname ne '' && $udom ne '') {
4055: my $status = &check_user_status($udom,$uname,$cdom,$cnum,$role);
1.277 albertel 4056: foreach my $type (keys(%{$types})) {
1.275 raeburn 4057: if ($status eq $type) {
1.288 raeburn 4058: @{$$users{$role}{$user}} = $type;
4059: $match = 1;
4060: }
4061: }
1.290 albertel 4062: if ($match && defined($userdata) &&
4063: !exists($$userdata{$uname.':'.$udom})) {
4064: &get_user_info($udom,$uname,\%idx,$userdata);
1.275 raeburn 4065: }
4066: }
4067: }
4068: }
1.290 albertel 4069: if (grep(/^ow$/,@{$roles})) {
1.279 raeburn 4070: if ((defined($cdom)) && (defined($cnum))) {
4071: my %csettings = &Apache::lonnet::get('environment',['internal.courseowner'],$cdom,$cnum);
4072: if ( defined($csettings{'internal.courseowner'}) ) {
4073: my $owner = $csettings{'internal.courseowner'};
1.288 raeburn 4074: @{$$users{'ow'}{$owner.':'.$cdom}} = 'any';
1.290 albertel 4075: if (defined($userdata) &&
4076: !exists($$userdata{$owner.':'.$cdom})) {
4077: &get_user_info($cdom,$owner,\%idx,$userdata);
4078: }
1.279 raeburn 4079: }
4080: }
4081: }
1.275 raeburn 4082: }
4083: return;
4084: }
4085:
1.288 raeburn 4086: sub get_user_info {
4087: my ($udom,$uname,$idx,$userdata) = @_;
1.289 albertel 4088: $$userdata{$uname.':'.$udom}[$$idx{fullname}] =
4089: &plainname($uname,$udom,'lastname');
1.291 albertel 4090: $$userdata{$uname.':'.$udom}[$$idx{uname}] = $uname;
1.297 raeburn 4091: $$userdata{$uname.':'.$udom}[$$idx{udom}] = $udom;
1.288 raeburn 4092: return;
4093: }
1.275 raeburn 4094:
1.112 bowersj2 4095: =pod
4096:
4097: =item * get_unprocessed_cgi($query,$possible_names)
4098:
1.258 albertel 4099: Modify the %env hash to contain unprocessed CGI form parameters held in
1.112 bowersj2 4100: $query. The parameters listed in $possible_names (an array reference),
1.258 albertel 4101: will be set in $env{'form.name'} if they do not already exist.
1.112 bowersj2 4102:
4103: Typically called with $ENV{'QUERY_STRING'} as the first parameter.
4104: $possible_names is an ref to an array of form element names. As an example:
4105: get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);
1.258 albertel 4106: will result in $env{'form.uname'} and $env{'form.udom'} being set.
1.112 bowersj2 4107:
4108: =cut
1.1 albertel 4109:
1.6 albertel 4110: sub get_unprocessed_cgi {
1.25 albertel 4111: my ($query,$possible_names)= @_;
1.26 matthew 4112: # $Apache::lonxml::debug=1;
1.356 albertel 4113: foreach my $pair (split(/&/,$query)) {
4114: my ($name, $value) = split(/=/,$pair);
1.369 www 4115: $name = &unescape($name);
1.25 albertel 4116: if (!defined($possible_names) || (grep {$_ eq $name} @$possible_names)) {
4117: $value =~ tr/+/ /;
4118: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.258 albertel 4119: unless (defined($env{'form.'.$name})) { &add_to_env('form.'.$name,$value) };
1.25 albertel 4120: }
1.16 harris41 4121: }
1.6 albertel 4122: }
4123:
1.112 bowersj2 4124: =pod
4125:
4126: =item * cacheheader()
4127:
4128: returns cache-controlling header code
4129:
4130: =cut
4131:
1.7 albertel 4132: sub cacheheader {
1.258 albertel 4133: unless ($env{'request.method'} eq 'GET') { return ''; }
1.216 albertel 4134: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
4135: my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
1.7 albertel 4136: <meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />
4137: <meta HTTP-EQUIV="Pragma" CONTENT="no-cache" />';
1.216 albertel 4138: return $output;
1.7 albertel 4139: }
4140:
1.112 bowersj2 4141: =pod
4142:
4143: =item * no_cache($r)
4144:
4145: specifies header code to not have cache
4146:
4147: =cut
4148:
1.9 albertel 4149: sub no_cache {
1.216 albertel 4150: my ($r) = @_;
4151: if ($ENV{'REQUEST_METHOD'} ne 'GET' &&
1.258 albertel 4152: $env{'request.method'} ne 'GET') { return ''; }
1.216 albertel 4153: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime(time));
4154: $r->no_cache(1);
4155: $r->header_out("Expires" => $date);
4156: $r->header_out("Pragma" => "no-cache");
1.123 www 4157: }
4158:
4159: sub content_type {
1.181 albertel 4160: my ($r,$type,$charset) = @_;
1.299 foxr 4161: if ($r) {
4162: # Note that printout.pl calls this with undef for $r.
4163: &no_cache($r);
4164: }
1.258 albertel 4165: if ($env{'browser.mathml'} && $type eq 'text/html') { $type='text/xml'; }
1.181 albertel 4166: unless ($charset) {
4167: $charset=&Apache::lonlocal::current_encoding;
4168: }
4169: if ($charset) { $type.='; charset='.$charset; }
4170: if ($r) {
4171: $r->content_type($type);
4172: } else {
4173: print("Content-type: $type\n\n");
4174: }
1.9 albertel 4175: }
1.25 albertel 4176:
1.112 bowersj2 4177: =pod
4178:
4179: =item * add_to_env($name,$value)
4180:
1.258 albertel 4181: adds $name to the %env hash with value
1.112 bowersj2 4182: $value, if $name already exists, the entry is converted to an array
4183: reference and $value is added to the array.
4184:
4185: =cut
4186:
1.25 albertel 4187: sub add_to_env {
4188: my ($name,$value)=@_;
1.258 albertel 4189: if (defined($env{$name})) {
4190: if (ref($env{$name})) {
1.25 albertel 4191: #already have multiple values
1.258 albertel 4192: push(@{ $env{$name} },$value);
1.25 albertel 4193: } else {
4194: #first time seeing multiple values, convert hash entry to an arrayref
1.258 albertel 4195: my $first=$env{$name};
4196: undef($env{$name});
4197: push(@{ $env{$name} },$first,$value);
1.25 albertel 4198: }
4199: } else {
1.258 albertel 4200: $env{$name}=$value;
1.25 albertel 4201: }
1.31 albertel 4202: }
1.149 albertel 4203:
4204: =pod
4205:
4206: =item * get_env_multiple($name)
4207:
1.258 albertel 4208: gets $name from the %env hash, it seemlessly handles the cases where multiple
1.149 albertel 4209: values may be defined and end up as an array ref.
4210:
4211: returns an array of values
4212:
4213: =cut
4214:
4215: sub get_env_multiple {
4216: my ($name) = @_;
4217: my @values;
1.258 albertel 4218: if (defined($env{$name})) {
1.149 albertel 4219: # exists is it an array
1.258 albertel 4220: if (ref($env{$name})) {
4221: @values=@{ $env{$name} };
1.149 albertel 4222: } else {
1.258 albertel 4223: $values[0]=$env{$name};
1.149 albertel 4224: }
4225: }
4226: return(@values);
4227: }
4228:
1.31 albertel 4229:
1.41 ng 4230: =pod
1.45 matthew 4231:
4232: =back
1.41 ng 4233:
1.112 bowersj2 4234: =head1 CSV Upload/Handling functions
1.38 albertel 4235:
1.41 ng 4236: =over 4
4237:
1.112 bowersj2 4238: =item * upfile_store($r)
1.41 ng 4239:
4240: Store uploaded file, $r should be the HTTP Request object,
1.258 albertel 4241: needs $env{'form.upfile'}
1.41 ng 4242: returns $datatoken to be put into hidden field
4243:
4244: =cut
1.31 albertel 4245:
4246: sub upfile_store {
4247: my $r=shift;
1.258 albertel 4248: $env{'form.upfile'}=~s/\r/\n/gs;
4249: $env{'form.upfile'}=~s/\f/\n/gs;
4250: $env{'form.upfile'}=~s/\n+/\n/gs;
4251: $env{'form.upfile'}=~s/\n+$//gs;
1.31 albertel 4252:
1.258 albertel 4253: my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
4254: '_enroll_'.$env{'request.course.id'}.'_'.time.'_'.$$;
1.31 albertel 4255: {
1.158 raeburn 4256: my $datafile = $r->dir_config('lonDaemons').
4257: '/tmp/'.$datatoken.'.tmp';
4258: if ( open(my $fh,">$datafile") ) {
1.258 albertel 4259: print $fh $env{'form.upfile'};
1.158 raeburn 4260: close($fh);
4261: }
1.31 albertel 4262: }
4263: return $datatoken;
4264: }
4265:
1.56 matthew 4266: =pod
4267:
1.112 bowersj2 4268: =item * load_tmp_file($r)
1.41 ng 4269:
4270: Load uploaded file from tmp, $r should be the HTTP Request object,
1.258 albertel 4271: needs $env{'form.datatoken'},
4272: sets $env{'form.upfile'} to the contents of the file
1.41 ng 4273:
4274: =cut
1.31 albertel 4275:
4276: sub load_tmp_file {
4277: my $r=shift;
4278: my @studentdata=();
4279: {
1.158 raeburn 4280: my $studentfile = $r->dir_config('lonDaemons').
1.258 albertel 4281: '/tmp/'.$env{'form.datatoken'}.'.tmp';
1.158 raeburn 4282: if ( open(my $fh,"<$studentfile") ) {
4283: @studentdata=<$fh>;
4284: close($fh);
4285: }
1.31 albertel 4286: }
1.258 albertel 4287: $env{'form.upfile'}=join('',@studentdata);
1.31 albertel 4288: }
4289:
1.56 matthew 4290: =pod
4291:
1.112 bowersj2 4292: =item * upfile_record_sep()
1.41 ng 4293:
4294: Separate uploaded file into records
4295: returns array of records,
1.258 albertel 4296: needs $env{'form.upfile'} and $env{'form.upfiletype'}
1.41 ng 4297:
4298: =cut
1.31 albertel 4299:
4300: sub upfile_record_sep {
1.258 albertel 4301: if ($env{'form.upfiletype'} eq 'xml') {
1.31 albertel 4302: } else {
1.248 albertel 4303: my @records;
1.258 albertel 4304: foreach my $line (split(/\n/,$env{'form.upfile'})) {
1.248 albertel 4305: if ($line=~/^\s*$/) { next; }
4306: push(@records,$line);
4307: }
4308: return @records;
1.31 albertel 4309: }
4310: }
4311:
1.56 matthew 4312: =pod
4313:
1.112 bowersj2 4314: =item * record_sep($record)
1.41 ng 4315:
1.258 albertel 4316: Separate a record into fields $record should be an item from the upfile_record_sep(), needs $env{'form.upfiletype'}
1.41 ng 4317:
4318: =cut
4319:
1.263 www 4320: sub takeleft {
4321: my $index=shift;
4322: return substr('0000'.$index,-4,4);
4323: }
4324:
1.31 albertel 4325: sub record_sep {
4326: my $record=shift;
4327: my %components=();
1.258 albertel 4328: if ($env{'form.upfiletype'} eq 'xml') {
4329: } elsif ($env{'form.upfiletype'} eq 'space') {
1.31 albertel 4330: my $i=0;
1.356 albertel 4331: foreach my $field (split(/\s+/,$record)) {
1.31 albertel 4332: $field=~s/^(\"|\')//;
4333: $field=~s/(\"|\')$//;
1.263 www 4334: $components{&takeleft($i)}=$field;
1.31 albertel 4335: $i++;
4336: }
1.258 albertel 4337: } elsif ($env{'form.upfiletype'} eq 'tab') {
1.31 albertel 4338: my $i=0;
1.356 albertel 4339: foreach my $field (split(/\t/,$record)) {
1.31 albertel 4340: $field=~s/^(\"|\')//;
4341: $field=~s/(\"|\')$//;
1.263 www 4342: $components{&takeleft($i)}=$field;
1.31 albertel 4343: $i++;
4344: }
4345: } else {
4346: my @allfields=split(/\,/,$record);
4347: my $i=0;
4348: my $j;
4349: for ($j=0;$j<=$#allfields;$j++) {
4350: my $field=$allfields[$j];
4351: if ($field=~/^\s*(\"|\')/) {
4352: my $delimiter=$1;
4353: while (($field!~/$delimiter$/) && ($j<$#allfields)) {
4354: $j++;
4355: $field.=','.$allfields[$j];
4356: }
4357: $field=~s/^\s*$delimiter//;
4358: $field=~s/$delimiter\s*$//;
4359: }
1.263 www 4360: $components{&takeleft($i)}=$field;
1.31 albertel 4361: $i++;
4362: }
4363: }
4364: return %components;
4365: }
4366:
1.144 matthew 4367: ######################################################
4368: ######################################################
4369:
1.56 matthew 4370: =pod
4371:
1.112 bowersj2 4372: =item * upfile_select_html()
1.41 ng 4373:
1.144 matthew 4374: Return HTML code to select a file from the users machine and specify
4375: the file type.
1.41 ng 4376:
4377: =cut
4378:
1.144 matthew 4379: ######################################################
4380: ######################################################
1.31 albertel 4381: sub upfile_select_html {
1.144 matthew 4382: my %Types = (
4383: csv => &mt('CSV (comma separated values, spreadsheet)'),
4384: space => &mt('Space separated'),
4385: tab => &mt('Tabulator separated'),
4386: # xml => &mt('HTML/XML'),
4387: );
4388: my $Str = '<input type="file" name="upfile" size="50" />'.
4389: '<br />Type: <select name="upfiletype">';
4390: foreach my $type (sort(keys(%Types))) {
4391: $Str .= '<option value="'.$type.'" >'.$Types{$type}."</option>\n";
4392: }
4393: $Str .= "</select>\n";
4394: return $Str;
1.31 albertel 4395: }
4396:
1.301 albertel 4397: sub get_samples {
4398: my ($records,$toget) = @_;
4399: my @samples=({});
4400: my $got=0;
4401: foreach my $rec (@$records) {
4402: my %temp = &record_sep($rec);
4403: if (! grep(/\S/, values(%temp))) { next; }
4404: if (%temp) {
4405: $samples[$got]=\%temp;
4406: $got++;
4407: if ($got == $toget) { last; }
4408: }
4409: }
4410: return \@samples;
4411: }
4412:
1.144 matthew 4413: ######################################################
4414: ######################################################
4415:
1.56 matthew 4416: =pod
4417:
1.112 bowersj2 4418: =item * csv_print_samples($r,$records)
1.41 ng 4419:
4420: Prints a table of sample values from each column uploaded $r is an
4421: Apache Request ref, $records is an arrayref from
4422: &Apache::loncommon::upfile_record_sep
4423:
4424: =cut
4425:
1.144 matthew 4426: ######################################################
4427: ######################################################
1.31 albertel 4428: sub csv_print_samples {
4429: my ($r,$records) = @_;
1.301 albertel 4430: my $samples = &get_samples($records,3);
4431:
1.144 matthew 4432: $r->print(&mt('Samples').'<br /><table border="2"><tr>');
1.356 albertel 4433: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
4434: $r->print('<th>'.&mt('Column [_1]',($sample+1)).'</th>'); }
1.31 albertel 4435: $r->print('</tr>');
1.301 albertel 4436: foreach my $hash (@$samples) {
1.31 albertel 4437: $r->print('<tr>');
1.356 albertel 4438: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
1.31 albertel 4439: $r->print('<td>');
1.356 albertel 4440: if (defined($$hash{$sample})) { $r->print($$hash{$sample}); }
1.31 albertel 4441: $r->print('</td>');
4442: }
4443: $r->print('</tr>');
4444: }
4445: $r->print('</tr></table><br />'."\n");
4446: }
4447:
1.144 matthew 4448: ######################################################
4449: ######################################################
4450:
1.56 matthew 4451: =pod
4452:
1.112 bowersj2 4453: =item * csv_print_select_table($r,$records,$d)
1.41 ng 4454:
4455: Prints a table to create associations between values and table columns.
1.144 matthew 4456:
1.41 ng 4457: $r is an Apache Request ref,
4458: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
1.174 matthew 4459: $d is an array of 2 element arrays (internal name, displayed name,defaultcol)
1.41 ng 4460:
4461: =cut
4462:
1.144 matthew 4463: ######################################################
4464: ######################################################
1.31 albertel 4465: sub csv_print_select_table {
4466: my ($r,$records,$d) = @_;
1.301 albertel 4467: my $i=0;
4468: my $samples = &get_samples($records,1);
1.144 matthew 4469: $r->print(&mt('Associate columns with student attributes.')."\n".
4470: '<table border="2"><tr>'.
4471: '<th>'.&mt('Attribute').'</th>'.
4472: '<th>'.&mt('Column').'</th></tr>'."\n");
1.356 albertel 4473: foreach my $array_ref (@$d) {
4474: my ($value,$display,$defaultcol)=@{ $array_ref };
1.31 albertel 4475: $r->print('<tr><td>'.$display.'</td>');
4476:
4477: $r->print('<td><select name=f'.$i.
1.32 matthew 4478: ' onchange="javascript:flip(this.form,'.$i.');">');
1.31 albertel 4479: $r->print('<option value="none"></option>');
1.356 albertel 4480: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
4481: $r->print('<option value="'.$sample.'"'.
4482: ($sample eq $defaultcol ? ' selected="selected" ' : '').
4483: '>Column '.($sample+1).'</option>');
1.31 albertel 4484: }
4485: $r->print('</select></td></tr>'."\n");
4486: $i++;
4487: }
4488: $i--;
4489: return $i;
4490: }
1.56 matthew 4491:
1.144 matthew 4492: ######################################################
4493: ######################################################
4494:
1.56 matthew 4495: =pod
1.31 albertel 4496:
1.112 bowersj2 4497: =item * csv_samples_select_table($r,$records,$d)
1.41 ng 4498:
4499: Prints a table of sample values from the upload and can make associate samples to internal names.
4500:
4501: $r is an Apache Request ref,
4502: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
4503: $d is an array of 2 element arrays (internal name, displayed name)
4504:
4505: =cut
4506:
1.144 matthew 4507: ######################################################
4508: ######################################################
1.31 albertel 4509: sub csv_samples_select_table {
4510: my ($r,$records,$d) = @_;
4511: my $i=0;
1.144 matthew 4512: #
1.301 albertel 4513: my $samples = &get_samples($records,3);
1.144 matthew 4514: $r->print('<table border=2><tr><th>'.
4515: &mt('Field').'</th><th>'.&mt('Samples').'</th></tr>');
1.301 albertel 4516:
4517: foreach my $key (sort(keys(%{ $samples->[0] }))) {
1.144 matthew 4518: $r->print('<tr><td><select name="f'.$i.'"'.
1.32 matthew 4519: ' onchange="javascript:flip(this.form,'.$i.');">');
1.301 albertel 4520: foreach my $option (@$d) {
4521: my ($value,$display,$defaultcol)=@{ $option };
1.174 matthew 4522: $r->print('<option value="'.$value.'"'.
1.253 albertel 4523: ($i eq $defaultcol ? ' selected="selected" ':'').'>'.
1.174 matthew 4524: $display.'</option>');
1.31 albertel 4525: }
4526: $r->print('</select></td><td>');
1.301 albertel 4527: foreach my $line (0..2) {
4528: if (defined($samples->[$line]{$key})) {
4529: $r->print($samples->[$line]{$key}."<br />\n");
4530: }
4531: }
1.31 albertel 4532: $r->print('</td></tr>');
4533: $i++;
4534: }
4535: $i--;
4536: return($i);
1.115 matthew 4537: }
4538:
1.144 matthew 4539: ######################################################
4540: ######################################################
4541:
1.115 matthew 4542: =pod
4543:
4544: =item clean_excel_name($name)
4545:
4546: Returns a replacement for $name which does not contain any illegal characters.
4547:
4548: =cut
4549:
1.144 matthew 4550: ######################################################
4551: ######################################################
1.115 matthew 4552: sub clean_excel_name {
4553: my ($name) = @_;
4554: $name =~ s/[:\*\?\/\\]//g;
4555: if (length($name) > 31) {
4556: $name = substr($name,0,31);
4557: }
4558: return $name;
1.25 albertel 4559: }
1.84 albertel 4560:
1.85 albertel 4561: =pod
4562:
1.112 bowersj2 4563: =item * check_if_partid_hidden($id,$symb,$udom,$uname)
1.85 albertel 4564:
4565: Returns either 1 or undef
4566:
4567: 1 if the part is to be hidden, undef if it is to be shown
4568:
4569: Arguments are:
4570:
4571: $id the id of the part to be checked
4572: $symb, optional the symb of the resource to check
4573: $udom, optional the domain of the user to check for
4574: $uname, optional the username of the user to check for
4575:
4576: =cut
1.84 albertel 4577:
4578: sub check_if_partid_hidden {
4579: my ($id,$symb,$udom,$uname) = @_;
1.133 albertel 4580: my $hiddenparts=&Apache::lonnet::EXT('resource.0.hiddenparts',
1.84 albertel 4581: $symb,$udom,$uname);
1.141 albertel 4582: my $truth=1;
4583: #if the string starts with !, then the list is the list to show not hide
4584: if ($hiddenparts=~s/^\s*!//) { $truth=undef; }
1.84 albertel 4585: my @hiddenlist=split(/,/,$hiddenparts);
4586: foreach my $checkid (@hiddenlist) {
1.141 albertel 4587: if ($checkid =~ /^\s*\Q$id\E\s*$/) { return $truth; }
1.84 albertel 4588: }
1.141 albertel 4589: return !$truth;
1.84 albertel 4590: }
1.127 matthew 4591:
1.138 matthew 4592:
4593: ############################################################
4594: ############################################################
4595:
4596: =pod
4597:
1.157 matthew 4598: =back
4599:
1.138 matthew 4600: =head1 cgi-bin script and graphing routines
4601:
1.157 matthew 4602: =over 4
4603:
1.138 matthew 4604: =item get_cgi_id
4605:
4606: Inputs: none
4607:
4608: Returns an id which can be used to pass environment variables
4609: to various cgi-bin scripts. These environment variables will
4610: be removed from the users environment after a given time by
4611: the routine &Apache::lonnet::transfer_profile_to_env.
4612:
4613: =cut
4614:
4615: ############################################################
4616: ############################################################
1.152 albertel 4617: my $uniq=0;
1.136 matthew 4618: sub get_cgi_id {
1.154 albertel 4619: $uniq=($uniq+1)%100000;
1.280 albertel 4620: return (time.'_'.$$.'_'.$uniq);
1.136 matthew 4621: }
4622:
1.127 matthew 4623: ############################################################
4624: ############################################################
4625:
4626: =pod
4627:
1.134 matthew 4628: =item DrawBarGraph
1.127 matthew 4629:
1.138 matthew 4630: Facilitates the plotting of data in a (stacked) bar graph.
4631: Puts plot definition data into the users environment in order for
4632: graph.png to plot it. Returns an <img> tag for the plot.
4633: The bars on the plot are labeled '1','2',...,'n'.
4634:
4635: Inputs:
4636:
4637: =over 4
4638:
4639: =item $Title: string, the title of the plot
4640:
4641: =item $xlabel: string, text describing the X-axis of the plot
4642:
4643: =item $ylabel: string, text describing the Y-axis of the plot
4644:
4645: =item $Max: scalar, the maximum Y value to use in the plot
4646: If $Max is < any data point, the graph will not be rendered.
4647:
1.140 matthew 4648: =item $colors: array ref holding the colors to be used for the data sets when
1.138 matthew 4649: they are plotted. If undefined, default values will be used.
4650:
1.178 matthew 4651: =item $labels: array ref holding the labels to use on the x-axis for the bars.
4652:
1.138 matthew 4653: =item @Values: An array of array references. Each array reference holds data
4654: to be plotted in a stacked bar chart.
4655:
1.239 matthew 4656: =item If the final element of @Values is a hash reference the key/value
4657: pairs will be added to the graph definition.
4658:
1.138 matthew 4659: =back
4660:
4661: Returns:
4662:
4663: An <img> tag which references graph.png and the appropriate identifying
4664: information for the plot.
4665:
1.127 matthew 4666: =cut
4667:
4668: ############################################################
4669: ############################################################
1.134 matthew 4670: sub DrawBarGraph {
1.178 matthew 4671: my ($Title,$xlabel,$ylabel,$Max,$colors,$labels,@Values)=@_;
1.134 matthew 4672: #
4673: if (! defined($colors)) {
4674: $colors = ['#33ff00',
4675: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
4676: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
4677: ];
4678: }
1.228 matthew 4679: my $extra_settings = {};
4680: if (ref($Values[-1]) eq 'HASH') {
4681: $extra_settings = pop(@Values);
4682: }
1.127 matthew 4683: #
1.136 matthew 4684: my $identifier = &get_cgi_id();
4685: my $id = 'cgi.'.$identifier;
1.129 matthew 4686: if (! @Values || ref($Values[0]) ne 'ARRAY') {
1.127 matthew 4687: return '';
4688: }
1.225 matthew 4689: #
4690: my @Labels;
4691: if (defined($labels)) {
4692: @Labels = @$labels;
4693: } else {
4694: for (my $i=0;$i<@{$Values[0]};$i++) {
4695: push (@Labels,$i+1);
4696: }
4697: }
4698: #
1.129 matthew 4699: my $NumBars = scalar(@{$Values[0]});
1.225 matthew 4700: if ($NumBars < scalar(@Labels)) { $NumBars = scalar(@Labels); }
1.129 matthew 4701: my %ValuesHash;
4702: my $NumSets=1;
4703: foreach my $array (@Values) {
4704: next if (! ref($array));
1.136 matthew 4705: $ValuesHash{$id.'.data.'.$NumSets++} =
1.132 matthew 4706: join(',',@$array);
1.129 matthew 4707: }
1.127 matthew 4708: #
1.136 matthew 4709: my ($height,$width,$xskip,$bar_width) = (200,120,1,15);
1.225 matthew 4710: if ($NumBars < 3) {
4711: $width = 120+$NumBars*32;
1.220 matthew 4712: $xskip = 1;
1.225 matthew 4713: $bar_width = 30;
4714: } elsif ($NumBars < 5) {
4715: $width = 120+$NumBars*20;
4716: $xskip = 1;
4717: $bar_width = 20;
1.220 matthew 4718: } elsif ($NumBars < 10) {
1.136 matthew 4719: $width = 120+$NumBars*15;
4720: $xskip = 1;
4721: $bar_width = 15;
4722: } elsif ($NumBars <= 25) {
4723: $width = 120+$NumBars*11;
4724: $xskip = 5;
4725: $bar_width = 8;
4726: } elsif ($NumBars <= 50) {
4727: $width = 120+$NumBars*8;
4728: $xskip = 5;
4729: $bar_width = 4;
4730: } else {
4731: $width = 120+$NumBars*8;
4732: $xskip = 5;
4733: $bar_width = 4;
4734: }
4735: #
1.137 matthew 4736: $Max = 1 if ($Max < 1);
4737: if ( int($Max) < $Max ) {
4738: $Max++;
4739: $Max = int($Max);
4740: }
1.127 matthew 4741: $Title = '' if (! defined($Title));
4742: $xlabel = '' if (! defined($xlabel));
4743: $ylabel = '' if (! defined($ylabel));
1.369 www 4744: $ValuesHash{$id.'.title'} = &escape($Title);
4745: $ValuesHash{$id.'.xlabel'} = &escape($xlabel);
4746: $ValuesHash{$id.'.ylabel'} = &escape($ylabel);
1.137 matthew 4747: $ValuesHash{$id.'.y_max_value'} = $Max;
1.136 matthew 4748: $ValuesHash{$id.'.NumBars'} = $NumBars;
4749: $ValuesHash{$id.'.NumSets'} = $NumSets;
4750: $ValuesHash{$id.'.PlotType'} = 'bar';
4751: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
4752: $ValuesHash{$id.'.height'} = $height;
4753: $ValuesHash{$id.'.width'} = $width;
4754: $ValuesHash{$id.'.xskip'} = $xskip;
4755: $ValuesHash{$id.'.bar_width'} = $bar_width;
4756: $ValuesHash{$id.'.labels'} = join(',',@Labels);
1.127 matthew 4757: #
1.228 matthew 4758: # Deal with other parameters
4759: while (my ($key,$value) = each(%$extra_settings)) {
4760: $ValuesHash{$id.'.'.$key} = $value;
4761: }
4762: #
1.137 matthew 4763: &Apache::lonnet::appenv(%ValuesHash);
4764: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
4765: }
4766:
4767: ############################################################
4768: ############################################################
4769:
4770: =pod
4771:
4772: =item DrawXYGraph
4773:
1.138 matthew 4774: Facilitates the plotting of data in an XY graph.
4775: Puts plot definition data into the users environment in order for
4776: graph.png to plot it. Returns an <img> tag for the plot.
4777:
4778: Inputs:
4779:
4780: =over 4
4781:
4782: =item $Title: string, the title of the plot
4783:
4784: =item $xlabel: string, text describing the X-axis of the plot
4785:
4786: =item $ylabel: string, text describing the Y-axis of the plot
4787:
4788: =item $Max: scalar, the maximum Y value to use in the plot
4789: If $Max is < any data point, the graph will not be rendered.
4790:
4791: =item $colors: Array ref containing the hex color codes for the data to be
4792: plotted in. If undefined, default values will be used.
4793:
4794: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
4795:
4796: =item $Ydata: Array ref containing Array refs.
1.185 www 4797: Each of the contained arrays will be plotted as a separate curve.
1.138 matthew 4798:
4799: =item %Values: hash indicating or overriding any default values which are
4800: passed to graph.png.
4801: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
4802:
4803: =back
4804:
4805: Returns:
4806:
4807: An <img> tag which references graph.png and the appropriate identifying
4808: information for the plot.
4809:
1.137 matthew 4810: =cut
4811:
4812: ############################################################
4813: ############################################################
4814: sub DrawXYGraph {
4815: my ($Title,$xlabel,$ylabel,$Max,$colors,$Xlabels,$Ydata,%Values)=@_;
4816: #
4817: # Create the identifier for the graph
4818: my $identifier = &get_cgi_id();
4819: my $id = 'cgi.'.$identifier;
4820: #
4821: $Title = '' if (! defined($Title));
4822: $xlabel = '' if (! defined($xlabel));
4823: $ylabel = '' if (! defined($ylabel));
4824: my %ValuesHash =
4825: (
1.369 www 4826: $id.'.title' => &escape($Title),
4827: $id.'.xlabel' => &escape($xlabel),
4828: $id.'.ylabel' => &escape($ylabel),
1.137 matthew 4829: $id.'.y_max_value'=> $Max,
4830: $id.'.labels' => join(',',@$Xlabels),
4831: $id.'.PlotType' => 'XY',
4832: );
4833: #
4834: if (defined($colors) && ref($colors) eq 'ARRAY') {
4835: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
4836: }
4837: #
4838: if (! ref($Ydata) || ref($Ydata) ne 'ARRAY') {
4839: return '';
4840: }
4841: my $NumSets=1;
1.138 matthew 4842: foreach my $array (@{$Ydata}){
1.137 matthew 4843: next if (! ref($array));
4844: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
4845: }
1.138 matthew 4846: $ValuesHash{$id.'.NumSets'} = $NumSets-1;
1.137 matthew 4847: #
4848: # Deal with other parameters
4849: while (my ($key,$value) = each(%Values)) {
4850: $ValuesHash{$id.'.'.$key} = $value;
1.127 matthew 4851: }
4852: #
1.136 matthew 4853: &Apache::lonnet::appenv(%ValuesHash);
4854: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
4855: }
4856:
4857: ############################################################
4858: ############################################################
4859:
4860: =pod
4861:
1.138 matthew 4862: =item DrawXYYGraph
4863:
4864: Facilitates the plotting of data in an XY graph with two Y axes.
4865: Puts plot definition data into the users environment in order for
4866: graph.png to plot it. Returns an <img> tag for the plot.
4867:
4868: Inputs:
4869:
4870: =over 4
4871:
4872: =item $Title: string, the title of the plot
4873:
4874: =item $xlabel: string, text describing the X-axis of the plot
4875:
4876: =item $ylabel: string, text describing the Y-axis of the plot
4877:
4878: =item $colors: Array ref containing the hex color codes for the data to be
4879: plotted in. If undefined, default values will be used.
4880:
4881: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
4882:
4883: =item $Ydata1: The first data set
4884:
4885: =item $Min1: The minimum value of the left Y-axis
4886:
4887: =item $Max1: The maximum value of the left Y-axis
4888:
4889: =item $Ydata2: The second data set
4890:
4891: =item $Min2: The minimum value of the right Y-axis
4892:
4893: =item $Max2: The maximum value of the left Y-axis
4894:
4895: =item %Values: hash indicating or overriding any default values which are
4896: passed to graph.png.
4897: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
4898:
4899: =back
4900:
4901: Returns:
4902:
4903: An <img> tag which references graph.png and the appropriate identifying
4904: information for the plot.
1.136 matthew 4905:
4906: =cut
4907:
4908: ############################################################
4909: ############################################################
1.137 matthew 4910: sub DrawXYYGraph {
4911: my ($Title,$xlabel,$ylabel,$colors,$Xlabels,$Ydata1,$Min1,$Max1,
4912: $Ydata2,$Min2,$Max2,%Values)=@_;
1.136 matthew 4913: #
4914: # Create the identifier for the graph
4915: my $identifier = &get_cgi_id();
4916: my $id = 'cgi.'.$identifier;
4917: #
4918: $Title = '' if (! defined($Title));
4919: $xlabel = '' if (! defined($xlabel));
4920: $ylabel = '' if (! defined($ylabel));
4921: my %ValuesHash =
4922: (
1.369 www 4923: $id.'.title' => &escape($Title),
4924: $id.'.xlabel' => &escape($xlabel),
4925: $id.'.ylabel' => &escape($ylabel),
1.136 matthew 4926: $id.'.labels' => join(',',@$Xlabels),
4927: $id.'.PlotType' => 'XY',
4928: $id.'.NumSets' => 2,
1.137 matthew 4929: $id.'.two_axes' => 1,
4930: $id.'.y1_max_value' => $Max1,
4931: $id.'.y1_min_value' => $Min1,
4932: $id.'.y2_max_value' => $Max2,
4933: $id.'.y2_min_value' => $Min2,
1.136 matthew 4934: );
4935: #
1.137 matthew 4936: if (defined($colors) && ref($colors) eq 'ARRAY') {
4937: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
4938: }
4939: #
4940: if (! ref($Ydata1) || ref($Ydata1) ne 'ARRAY' ||
4941: ! ref($Ydata2) || ref($Ydata2) ne 'ARRAY'){
1.136 matthew 4942: return '';
4943: }
4944: my $NumSets=1;
1.137 matthew 4945: foreach my $array ($Ydata1,$Ydata2){
1.136 matthew 4946: next if (! ref($array));
4947: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
1.137 matthew 4948: }
4949: #
4950: # Deal with other parameters
4951: while (my ($key,$value) = each(%Values)) {
4952: $ValuesHash{$id.'.'.$key} = $value;
1.136 matthew 4953: }
4954: #
4955: &Apache::lonnet::appenv(%ValuesHash);
1.130 albertel 4956: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
1.139 matthew 4957: }
4958:
4959: ############################################################
4960: ############################################################
4961:
4962: =pod
4963:
1.157 matthew 4964: =back
4965:
1.139 matthew 4966: =head1 Statistics helper routines?
4967:
4968: Bad place for them but what the hell.
4969:
1.157 matthew 4970: =over 4
4971:
1.139 matthew 4972: =item &chartlink
4973:
4974: Returns a link to the chart for a specific student.
4975:
4976: Inputs:
4977:
4978: =over 4
4979:
4980: =item $linktext: The text of the link
4981:
4982: =item $sname: The students username
4983:
4984: =item $sdomain: The students domain
4985:
4986: =back
4987:
1.157 matthew 4988: =back
4989:
1.139 matthew 4990: =cut
4991:
4992: ############################################################
4993: ############################################################
4994: sub chartlink {
4995: my ($linktext, $sname, $sdomain) = @_;
4996: my $link = '<a href="/adm/statistics?reportSelected=student_assessment'.
1.369 www 4997: '&SelectedStudent='.&escape($sname.':'.$sdomain).
1.219 albertel 4998: '&chartoutputmode='.HTML::Entities::encode('html, with all links').
1.139 matthew 4999: '">'.$linktext.'</a>';
1.153 matthew 5000: }
5001:
5002: #######################################################
5003: #######################################################
5004:
5005: =pod
5006:
5007: =head1 Course Environment Routines
1.157 matthew 5008:
5009: =over 4
1.153 matthew 5010:
5011: =item &restore_course_settings
5012:
5013: =item &store_course_settings
5014:
5015: Restores/Store indicated form parameters from the course environment.
5016: Will not overwrite existing values of the form parameters.
5017:
5018: Inputs:
5019: a scalar describing the data (e.g. 'chart', 'problem_analysis')
5020:
5021: a hash ref describing the data to be stored. For example:
5022:
5023: %Save_Parameters = ('Status' => 'scalar',
5024: 'chartoutputmode' => 'scalar',
5025: 'chartoutputdata' => 'scalar',
5026: 'Section' => 'array',
5027: 'StudentData' => 'array',
5028: 'Maps' => 'array');
5029:
5030: Returns: both routines return nothing
5031:
5032: =cut
5033:
5034: #######################################################
5035: #######################################################
5036: sub store_course_settings {
5037: # save to the environment
5038: # appenv the same items, just to be safe
1.258 albertel 5039: my $courseid = $env{'request.course.id'};
1.300 albertel 5040: my $udom = $env{'user.domain'};
5041: my $uname = $env{'user.name'};
1.153 matthew 5042: my ($prefix,$Settings) = @_;
5043: my %SaveHash;
5044: my %AppHash;
5045: while (my ($setting,$type) = each(%$Settings)) {
1.300 albertel 5046: my $basename = join('.','internal',$courseid,$prefix,$setting);
5047: my $envname = 'environment.'.$basename;
1.258 albertel 5048: if (exists($env{'form.'.$setting})) {
1.153 matthew 5049: # Save this value away
5050: if ($type eq 'scalar' &&
1.258 albertel 5051: (! exists($env{$envname}) ||
5052: $env{$envname} ne $env{'form.'.$setting})) {
5053: $SaveHash{$basename} = $env{'form.'.$setting};
5054: $AppHash{$envname} = $env{'form.'.$setting};
1.153 matthew 5055: } elsif ($type eq 'array') {
5056: my $stored_form;
1.258 albertel 5057: if (ref($env{'form.'.$setting})) {
1.153 matthew 5058: $stored_form = join(',',
5059: map {
1.369 www 5060: &escape($_);
1.258 albertel 5061: } sort(@{$env{'form.'.$setting}}));
1.153 matthew 5062: } else {
5063: $stored_form =
1.369 www 5064: &escape($env{'form.'.$setting});
1.153 matthew 5065: }
5066: # Determine if the array contents are the same.
1.258 albertel 5067: if ($stored_form ne $env{$envname}) {
1.153 matthew 5068: $SaveHash{$basename} = $stored_form;
5069: $AppHash{$envname} = $stored_form;
5070: }
5071: }
5072: }
5073: }
5074: my $put_result = &Apache::lonnet::put('environment',\%SaveHash,
1.300 albertel 5075: $udom,$uname);
1.153 matthew 5076: if ($put_result !~ /^(ok|delayed)/) {
5077: &Apache::lonnet::logthis('unable to save form parameters, '.
5078: 'got error:'.$put_result);
5079: }
5080: # Make sure these settings stick around in this session, too
5081: &Apache::lonnet::appenv(%AppHash);
5082: return;
5083: }
5084:
5085: sub restore_course_settings {
1.258 albertel 5086: my $courseid = $env{'request.course.id'};
1.153 matthew 5087: my ($prefix,$Settings) = @_;
5088: while (my ($setting,$type) = each(%$Settings)) {
1.258 albertel 5089: next if (exists($env{'form.'.$setting}));
1.300 albertel 5090: my $envname = 'environment.internal.'.$courseid.'.'.$prefix.
1.153 matthew 5091: '.'.$setting;
1.258 albertel 5092: if (exists($env{$envname})) {
1.153 matthew 5093: if ($type eq 'scalar') {
1.258 albertel 5094: $env{'form.'.$setting} = $env{$envname};
1.153 matthew 5095: } elsif ($type eq 'array') {
1.258 albertel 5096: $env{'form.'.$setting} = [
1.153 matthew 5097: map {
1.369 www 5098: &unescape($_);
1.258 albertel 5099: } split(',',$env{$envname})
1.153 matthew 5100: ];
5101: }
5102: }
5103: }
1.127 matthew 5104: }
5105:
5106: ############################################################
5107: ############################################################
1.154 albertel 5108:
5109: sub propath {
5110: my ($udom,$uname)=@_;
5111: $udom=~s/\W//g;
5112: $uname=~s/\W//g;
5113: my $subdir=$uname.'__';
5114: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
5115: my $proname="$Apache::lonnet::perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
5116: return $proname;
1.156 albertel 5117: }
5118:
5119: sub icon {
5120: my ($file)=@_;
1.168 albertel 5121: my $curfext = (split(/\./,$file))[-1];
5122: my $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/unknown.gif';
1.156 albertel 5123: my $embstyle = &Apache::loncommon::fileembstyle($curfext);
1.168 albertel 5124: if (!(!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn')) {
5125: if (-e $Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
5126: $Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
5127: $curfext.".gif") {
5128: $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
5129: $curfext.".gif";
5130: }
5131: }
1.249 albertel 5132: return &lonhttpdurl($iconname);
1.154 albertel 5133: }
1.84 albertel 5134:
1.215 albertel 5135: sub lonhttpdurl {
5136: my ($url)=@_;
5137: my $lonhttpd_port=$Apache::lonnet::perlvar{'lonhttpdPort'};
5138: if (!defined($lonhttpd_port)) { $lonhttpd_port='8080'; }
5139: return 'http://'.$ENV{'SERVER_NAME'}.':'.$lonhttpd_port.$url;
5140: }
5141:
1.213 albertel 5142: sub connection_aborted {
5143: my ($r)=@_;
5144: $r->print(" ");$r->rflush();
5145: my $c = $r->connection;
5146: return $c->aborted();
5147: }
5148:
1.221 foxr 5149: # Escapes strings that may have embedded 's that will be put into
1.222 foxr 5150: # strings as 'strings'.
5151: sub escape_single {
1.221 foxr 5152: my ($input) = @_;
1.223 albertel 5153: $input =~ s/\\/\\\\/g; # Escape the \'s..(must be first)>
1.221 foxr 5154: $input =~ s/\'/\\\'/g; # Esacpe the 's....
5155: return $input;
5156: }
1.223 albertel 5157:
1.222 foxr 5158: # Same as escape_single, but escape's "'s This
5159: # can be used for "strings"
5160: sub escape_double {
5161: my ($input) = @_;
5162: $input =~ s/\\/\\\\/g; # Escape the /'s..(must be first)>
5163: $input =~ s/\"/\\\"/g; # Esacpe the "s....
5164: return $input;
5165: }
1.223 albertel 5166:
1.222 foxr 5167: # Escapes the last element of a full URL.
5168: sub escape_url {
5169: my ($url) = @_;
1.238 raeburn 5170: my @urlslices = split(/\//, $url,-1);
1.369 www 5171: my $lastitem = &escape(pop(@urlslices));
1.223 albertel 5172: return join('/',@urlslices).'/'.$lastitem;
1.222 foxr 5173: }
1.41 ng 5174: =pod
5175:
5176: =back
5177:
1.112 bowersj2 5178: =cut
1.41 ng 5179:
1.112 bowersj2 5180: 1;
5181: __END__;
1.41 ng 5182:
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