Annotation of loncom/interface/loncommon.pm, revision 1.433
1.10 albertel 1: # The LearningOnline Network with CAPA
1.1 albertel 2: # a pile of common routines
1.10 albertel 3: #
1.433 ! albertel 4: # $Id: loncommon.pm,v 1.432 2006/07/19 10:52:27 albertel Exp $
1.10 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.1 albertel 28:
29: # Makes a table out of the previous attempts
1.2 albertel 30: # Inputs result_from_symbread, user, domain, course_id
1.16 harris41 31: # Reads in non-network-related .tab files
1.1 albertel 32:
1.35 matthew 33: # POD header:
34:
1.45 matthew 35: =pod
36:
1.35 matthew 37: =head1 NAME
38:
39: Apache::loncommon - pile of common routines
40:
41: =head1 SYNOPSIS
42:
1.112 bowersj2 43: Common routines for manipulating connections, student answers,
44: domains, common Javascript fragments, etc.
1.35 matthew 45:
1.112 bowersj2 46: =head1 OVERVIEW
1.35 matthew 47:
1.112 bowersj2 48: A collection of commonly used subroutines that don't have a natural
49: home anywhere else. This collection helps remove
1.35 matthew 50: redundancy from other modules and increase efficiency of memory usage.
51:
52: =cut
53:
54: # End of POD header
1.1 albertel 55: package Apache::loncommon;
56:
57: use strict;
1.258 albertel 58: use Apache::lonnet;
1.46 matthew 59: use GDBM_File;
1.51 www 60: use POSIX qw(strftime mktime);
1.82 www 61: use Apache::lonmenu();
1.117 www 62: use Apache::lonlocal;
1.139 matthew 63: use HTML::Entities;
1.334 albertel 64: use Apache::lonhtmlcommon();
65: use Apache::loncoursedata();
1.344 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)=@_;
1.377 raeburn 389: my $crs_or_grp_alert = &mt('Please select the type of LON-CAPA entity - Course or Group - for which you wish to add/modify a user role');
1.128 albertel 390: return (<<ENDSTDBRW);
1.91 www 391: <script type="text/javascript" language="Javascript" >
392: var stdeditbrowser;
1.377 raeburn 393: function opencrsbrowser(formname,uname,udom,desc,extra_element,multflag,crstype) {
1.91 www 394: var url = '/adm/pickcourse?';
395: var filter;
396: if (filter != null) {
397: if (filter != '') {
398: url += 'filter='+filter+'&';
399: }
400: }
1.128 albertel 401: var domainfilter='$domainfilter';
402: if (domainfilter != null) {
403: if (domainfilter != '') {
404: url += 'domainfilter='+domainfilter+'&';
405: }
406: }
1.91 www 407: url += 'form=' + formname + '&cnumelement='+uname+
1.187 albertel 408: '&cdomelement='+udom+
409: '&cnameelement='+desc;
1.234 raeburn 410: if (extra_element !=null && extra_element != '' && formname == 'rolechoice') {
411: url += '&roleelement='+extra_element;
412: if (domainfilter == null || domainfilter == '') {
413: url += '&domainfilter='+extra_element;
414: }
1.230 raeburn 415: }
1.293 raeburn 416: if (multflag !=null && multflag != '') {
417: url += '&multiple='+multflag;
418: }
1.377 raeburn 419: if (crstype == 'Course/Group') {
420: if (formname == 'cu') {
421: crstype = document.cu.crstype.options[document.cu.crstype.selectedIndex].value;
422: if (crstype == "") {
423: alert("$crs_or_grp_alert");
424: return;
425: }
426: }
427: }
428: if (crstype !=null && crstype != '') {
429: url += '&type='+crstype;
430: }
1.102 www 431: var title = 'Course_Browser';
1.91 www 432: var options = 'scrollbars=1,resizable=1,menubar=0';
433: options += ',width=700,height=600';
434: stdeditbrowser = open(url,title,options,'1');
435: stdeditbrowser.focus();
436: }
437: </script>
438: ENDSTDBRW
439: }
440:
441: sub selectcourse_link {
1.377 raeburn 442: my ($form,$unameele,$udomele,$desc,$extra_element,$multflag,$selecttype)=@_;
1.91 www 443: return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele.
1.377 raeburn 444: '","'.$udomele.'","'.$desc.'","'.$extra_element.'","'.$multflag.'","'.$selecttype.'");'."'>".&mt('Select [_1]',$selecttype)."</a>";
1.74 www 445: }
1.42 matthew 446:
1.273 raeburn 447: sub check_uncheck_jscript {
448: my $jscript = <<"ENDSCRT";
449: function checkAll(field) {
450: if (field.length > 0) {
451: for (i = 0; i < field.length; i++) {
452: field[i].checked = true ;
453: }
454: } else {
455: field.checked = true
456: }
457: }
458:
459: function uncheckAll(field) {
460: if (field.length > 0) {
461: for (i = 0; i < field.length; i++) {
462: field[i].checked = false ;
463: } } else {
464: field.checked = false ;
465: }
466: }
467: ENDSCRT
468: return $jscript;
469: }
470:
471:
1.42 matthew 472: =pod
1.36 matthew 473:
1.112 bowersj2 474: =item * linked_select_forms(...)
1.36 matthew 475:
476: linked_select_forms returns a string containing a <script></script> block
477: and html for two <select> menus. The select menus will be linked in that
478: changing the value of the first menu will result in new values being placed
479: in the second menu. The values in the select menu will appear in alphabetical
480: order.
481:
482: linked_select_forms takes the following ordered inputs:
483:
484: =over 4
485:
1.112 bowersj2 486: =item * $formname, the name of the <form> tag
1.36 matthew 487:
1.112 bowersj2 488: =item * $middletext, the text which appears between the <select> tags
1.36 matthew 489:
1.112 bowersj2 490: =item * $firstdefault, the default value for the first menu
1.36 matthew 491:
1.112 bowersj2 492: =item * $firstselectname, the name of the first <select> tag
1.36 matthew 493:
1.112 bowersj2 494: =item * $secondselectname, the name of the second <select> tag
1.36 matthew 495:
1.112 bowersj2 496: =item * $hashref, a reference to a hash containing the data for the menus.
1.36 matthew 497:
1.41 ng 498: =back
499:
1.36 matthew 500: Below is an example of such a hash. Only the 'text', 'default', and
501: 'select2' keys must appear as stated. keys(%menu) are the possible
502: values for the first select menu. The text that coincides with the
1.41 ng 503: first menu value is given in $menu{$choice1}->{'text'}. The values
1.36 matthew 504: and text for the second menu are given in the hash pointed to by
505: $menu{$choice1}->{'select2'}.
506:
1.112 bowersj2 507: my %menu = ( A1 => { text =>"Choice A1" ,
508: default => "B3",
509: select2 => {
510: B1 => "Choice B1",
511: B2 => "Choice B2",
512: B3 => "Choice B3",
513: B4 => "Choice B4"
514: }
515: },
516: A2 => { text =>"Choice A2" ,
517: default => "C2",
518: select2 => {
519: C1 => "Choice C1",
520: C2 => "Choice C2",
521: C3 => "Choice C3"
522: }
523: },
524: A3 => { text =>"Choice A3" ,
525: default => "D6",
526: select2 => {
527: D1 => "Choice D1",
528: D2 => "Choice D2",
529: D3 => "Choice D3",
530: D4 => "Choice D4",
531: D5 => "Choice D5",
532: D6 => "Choice D6",
533: D7 => "Choice D7"
534: }
535: }
536: );
1.36 matthew 537:
538: =cut
539:
540: sub linked_select_forms {
541: my ($formname,
542: $middletext,
543: $firstdefault,
544: $firstselectname,
545: $secondselectname,
546: $hashref
547: ) = @_;
548: my $second = "document.$formname.$secondselectname";
549: my $first = "document.$formname.$firstselectname";
550: # output the javascript to do the changing
551: my $result = '';
1.219 albertel 552: $result.="<script type=\"text/javascript\">\n";
1.36 matthew 553: $result.="var select2data = new Object();\n";
554: $" = '","';
555: my $debug = '';
556: foreach my $s1 (sort(keys(%$hashref))) {
557: $result.="select2data.d_$s1 = new Object();\n";
558: $result.="select2data.d_$s1.def = new String('".
559: $hashref->{$s1}->{'default'}."');\n";
560: $result.="select2data.d_$s1.values = new Array(";
561: my @s2values = sort(keys( %{ $hashref->{$s1}->{'select2'} } ));
562: $result.="\"@s2values\");\n";
563: $result.="select2data.d_$s1.texts = new Array(";
564: my @s2texts;
565: foreach my $value (@s2values) {
566: push @s2texts, $hashref->{$s1}->{'select2'}->{$value};
567: }
568: $result.="\"@s2texts\");\n";
569: }
570: $"=' ';
571: $result.= <<"END";
572:
573: function select1_changed() {
574: // Determine new choice
575: var newvalue = "d_" + $first.value;
576: // update select2
577: var values = select2data[newvalue].values;
578: var texts = select2data[newvalue].texts;
579: var select2def = select2data[newvalue].def;
580: var i;
581: // out with the old
582: for (i = 0; i < $second.options.length; i++) {
583: $second.options[i] = null;
584: }
585: // in with the nuclear
586: for (i=0;i<values.length; i++) {
587: $second.options[i] = new Option(values[i]);
1.143 matthew 588: $second.options[i].value = values[i];
1.36 matthew 589: $second.options[i].text = texts[i];
590: if (values[i] == select2def) {
591: $second.options[i].selected = true;
592: }
593: }
594: }
595: </script>
596: END
597: # output the initial values for the selection lists
598: $result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed()\">\n";
599: foreach my $value (sort(keys(%$hashref))) {
600: $result.=" <option value=\"$value\" ";
1.253 albertel 601: $result.=" selected=\"selected\" " if ($value eq $firstdefault);
1.119 www 602: $result.=">".&mt($hashref->{$value}->{'text'})."</option>\n";
1.36 matthew 603: }
604: $result .= "</select>\n";
605: my %select2 = %{$hashref->{$firstdefault}->{'select2'}};
606: $result .= $middletext;
607: $result .= "<select size=\"1\" name=\"$secondselectname\">\n";
608: my $seconddefault = $hashref->{$firstdefault}->{'default'};
609: foreach my $value (sort(keys(%select2))) {
610: $result.=" <option value=\"$value\" ";
1.253 albertel 611: $result.=" selected=\"selected\" " if ($value eq $seconddefault);
1.119 www 612: $result.=">".&mt($select2{$value})."</option>\n";
1.36 matthew 613: }
614: $result .= "</select>\n";
615: # return $debug;
616: return $result;
617: } # end of sub linked_select_forms {
618:
1.45 matthew 619: =pod
1.44 bowersj2 620:
1.112 bowersj2 621: =item * help_open_topic($topic, $text, $stayOnPage, $width, $height)
1.44 bowersj2 622:
1.112 bowersj2 623: Returns a string corresponding to an HTML link to the given help
624: $topic, where $topic corresponds to the name of a .tex file in
625: /home/httpd/html/adm/help/tex, with underscores replaced by
626: spaces.
627:
628: $text will optionally be linked to the same topic, allowing you to
629: link text in addition to the graphic. If you do not want to link
630: text, but wish to specify one of the later parameters, pass an
631: empty string.
632:
633: $stayOnPage is a value that will be interpreted as a boolean. If true,
634: the link will not open a new window. If false, the link will open
635: a new window using Javascript. (Default is false.)
636:
637: $width and $height are optional numerical parameters that will
638: override the width and height of the popped up window, which may
639: be useful for certain help topics with big pictures included.
1.44 bowersj2 640:
641: =cut
642:
643: sub help_open_topic {
1.48 bowersj2 644: my ($topic, $text, $stayOnPage, $width, $height) = @_;
645: $text = "" if (not defined $text);
1.44 bowersj2 646: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 647: if ($env{'browser.interface'} eq 'textual' ||
648: $env{'environment.remote'} eq 'off' ) {
1.79 www 649: $stayOnPage=1;
650: }
1.44 bowersj2 651: $width = 350 if (not defined $width);
652: $height = 400 if (not defined $height);
653: my $filename = $topic;
654: $filename =~ s/ /_/g;
655:
1.48 bowersj2 656: my $template = "";
657: my $link;
1.159 www 658:
659: $topic=~s/\W/\_/g;
1.44 bowersj2 660:
661: if (!$stayOnPage)
662: {
1.72 bowersj2 663: $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
1.44 bowersj2 664: }
665: else
666: {
1.48 bowersj2 667: $link = "/adm/help/${filename}.hlp";
668: }
669:
670: # Add the text
671: if ($text ne "")
672: {
1.77 www 673: $template .=
674: "<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>".
1.78 www 675: "<td bgcolor='#5555FF'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.48 bowersj2 676: }
677:
678: # Add the graphic
1.179 matthew 679: my $title = &mt('Online Help');
1.215 albertel 680: my $helpicon=&lonhttpdurl("/adm/help/gif/smallHelp.gif");
1.48 bowersj2 681: $template .= <<"ENDTEMPLATE";
1.218 albertel 682: <a href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help: $topic)" /></a>
1.44 bowersj2 683: ENDTEMPLATE
1.78 www 684: if ($text ne '') { $template.='</td></tr></table>' };
1.44 bowersj2 685: return $template;
686:
1.106 bowersj2 687: }
688:
689: # This is a quicky function for Latex cheatsheet editing, since it
690: # appears in at least four places
691: sub helpLatexCheatsheet {
692: my $other = shift;
693: my $addOther = '';
694: if ($other) {
695: $addOther = Apache::loncommon::help_open_topic($other, shift,
696: undef, undef, 600) .
697: '</td><td>';
698: }
699: return '<table><tr><td>'.
700: $addOther .
701: &Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols',
702: undef,undef,600)
703: .'</td><td>'.
704: &Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols',
705: undef,undef,600)
706: .'</td></tr></table>';
1.172 www 707: }
708:
1.430 albertel 709: sub general_help {
710: my $helptopic='Student_Intro';
711: if ($env{'request.role'}=~/^(ca|au)/) {
712: $helptopic='Authoring_Intro';
713: } elsif ($env{'request.role'}=~/^cc/) {
714: $helptopic='Course_Coordination_Intro';
715: }
716: return $helptopic;
717: }
718:
719: sub update_help_link {
720: my ($topic,$component_help,$faq,$bug,$stayOnPage) = @_;
721: my $origurl = $ENV{'REQUEST_URI'};
722: $origurl=~s|^/~|/priv/|;
723: my $timestamp = time;
724: foreach my $datum (\$topic,\$component_help,\$faq,\$bug,\$origurl) {
725: $$datum = &escape($$datum);
726: }
727:
728: my $banner_link = "/adm/helpmenu?page=banner&topic=$topic&component_help=$component_help&faq=$faq&bug=$bug&origurl=$origurl&stamp=$timestamp&stayonpage=$stayOnPage";
729: my $output .= <<"ENDOUTPUT";
730: <script type="text/javascript">
731: // <!-- BEGIN LON-CAPA Internal
732: banner_link = '$banner_link';
733: // END LON-CAPA Internal -->
734: </script>
735: ENDOUTPUT
736: return $output;
737: }
738:
739: # now just updates the help link and generates a blue icon
1.193 raeburn 740: sub help_open_menu {
1.430 albertel 741: my ($topic,$component_help,$faq,$bug,$stayOnPage,$width,$height,$text)
742: = @_;
743:
744: $stayOnPage = 0 if (not defined $stayOnPage);
745: if ($env{'browser.interface'} eq 'textual' ||
746: $env{'environment.remote'} eq 'off' ) {
747: $stayOnPage=1;
748: }
749: my $output;
750: if ($component_help) {
751: if (!$text) {
752: $output=&help_open_topic($component_help,undef,$stayOnPage,
753: $width,$height);
754: } else {
755: my $help_text;
756: $help_text=&unescape($topic);
757: $output='<table><tr><td>'.
758: &help_open_topic($component_help,$help_text,$stayOnPage,
759: $width,$height).'</td></tr></table>';
760: }
761: }
762: my $banner_link = &update_help_link($topic,$component_help,$faq,$bug,$stayOnPage);
763: return $output.$banner_link;
764: }
765:
766: sub top_nav_help {
767: my ($text) = @_;
768:
769: my ($topic,$component_help,$faq,$bug,$stayOnPage,$width,$height);
770:
1.193 raeburn 771: $text = "" if (not defined $text);
772: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 773: if ($env{'browser.interface'} eq 'textual' ||
774: $env{'environment.remote'} eq 'off' ) {
1.193 raeburn 775: $stayOnPage=1;
776: }
777: $width = 620 if (not defined $width);
778: $height = 600 if (not defined $height);
779: my $link='';
1.201 raeburn 780: my $title = &mt('Get help');
1.430 albertel 781: if ($stayOnPage) {
782: $link = "javascript:helpMenu('display')";
1.195 albertel 783: } else {
1.430 albertel 784: $link = "javascript:helpMenu('open')";
1.193 raeburn 785: }
1.430 albertel 786: my $helptopic=&general_help();
787: my $banner_link = &update_help_link($topic,$component_help,$faq,$bug,$stayOnPage);
788: my $details_link = '/adm/help/'.$helptopic.'.hlp';
1.196 albertel 789: my $template;
1.261 albertel 790: my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
1.215 albertel 791: my $helpicon=&lonhttpdurl("/adm/lonIcons/helpgateway.gif");
1.331 albertel 792: my $start_page =
793: &Apache::loncommon::start_page('Help Menu', undef,
794: {'frameset' => 1,
795: 'js_ready' => 1,
796: 'add_entries' => {
797: 'border' => '0',
798: 'rows' => "105,*",},});
799: my $end_page =
800: &Apache::loncommon::end_page({'frameset' => 1,
801: 'js_ready' => 1,});
802:
1.196 albertel 803: $template .= <<"ENDTEMPLATE";
1.219 albertel 804: <script type="text/javascript">
1.253 albertel 805: // <!-- BEGIN LON-CAPA Internal
806: // <![CDATA[
1.430 albertel 807: var banner_link = '';
1.243 raeburn 808: function helpMenu(target) {
809: var caller = this;
810: if (target == 'open') {
811: var newWindow = null;
812: try {
1.262 albertel 813: newWindow = window.open($nothing,"helpmenu","HEIGHT=$height,WIDTH=$width,resizable=yes,scrollbars=yes" )
1.243 raeburn 814: }
815: catch(error) {
816: writeHelp(caller);
817: return;
818: }
819: if (newWindow) {
820: caller = newWindow;
821: }
1.193 raeburn 822: }
1.243 raeburn 823: writeHelp(caller);
824: return;
825: }
826: function writeHelp(caller) {
1.430 albertel 827: caller.document.writeln('$start_page<frame name="bannerframe" src="'+banner_link+'" /><frame name="bodyframe" src="$details_link" /> $end_page')
1.243 raeburn 828: caller.document.close()
829: caller.focus()
1.193 raeburn 830: }
1.253 albertel 831: // ]]>
1.219 albertel 832: // END LON-CAPA Internal -->
1.193 raeburn 833: </script>
1.430 albertel 834: $banner_link
1.431 albertel 835: <a href="$link" title="$title">$text</a>
1.193 raeburn 836: ENDTEMPLATE
837: return $template;
838: }
839:
1.172 www 840: sub help_open_bug {
841: my ($topic, $text, $stayOnPage, $width, $height) = @_;
1.258 albertel 842: unless ($env{'user.adv'}) { return ''; }
1.172 www 843: unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }
844: $text = "" if (not defined $text);
845: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 846: if ($env{'browser.interface'} eq 'textual' ||
847: $env{'environment.remote'} eq 'off' ) {
1.172 www 848: $stayOnPage=1;
849: }
1.184 albertel 850: $width = 600 if (not defined $width);
851: $height = 600 if (not defined $height);
1.172 www 852:
853: $topic=~s/\W+/\+/g;
854: my $link='';
855: my $template='';
1.379 albertel 856: my $url=$Apache::lonnet::perlvar{'BugzillaHost'}.'enter_bug.cgi?product=LON-CAPA&bug_file_loc='.
857: &escape($ENV{'REQUEST_URI'}).'&component='.$topic;
1.172 www 858: if (!$stayOnPage)
859: {
860: $link = "javascript:void(open('$url', 'Bugzilla', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
861: }
862: else
863: {
864: $link = $url;
865: }
866: # Add the text
867: if ($text ne "")
868: {
869: $template .=
870: "<table bgcolor='#AA3333' cellspacing='1' cellpadding='1' border='0'><tr>".
871: "<td bgcolor='#FF5555'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
872: }
873:
874: # Add the graphic
1.179 matthew 875: my $title = &mt('Report a Bug');
1.215 albertel 876: my $bugicon=&lonhttpdurl("/adm/lonMisc/smallBug.gif");
1.172 www 877: $template .= <<"ENDTEMPLATE";
1.218 albertel 878: <a href="$link" title="$title"><img src="$bugicon" border="0" alt="(Bug: $topic)" /></a>
1.172 www 879: ENDTEMPLATE
880: if ($text ne '') { $template.='</td></tr></table>' };
881: return $template;
882:
883: }
884:
885: sub help_open_faq {
886: my ($topic, $text, $stayOnPage, $width, $height) = @_;
1.258 albertel 887: unless ($env{'user.adv'}) { return ''; }
1.172 www 888: unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }
889: $text = "" if (not defined $text);
890: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 891: if ($env{'browser.interface'} eq 'textual' ||
892: $env{'environment.remote'} eq 'off' ) {
1.172 www 893: $stayOnPage=1;
894: }
895: $width = 350 if (not defined $width);
896: $height = 400 if (not defined $height);
897:
898: $topic=~s/\W+/\+/g;
899: my $link='';
900: my $template='';
901: my $url=$Apache::lonnet::perlvar{'FAQHost'}.'/fom/cache/'.$topic.'.html';
902: if (!$stayOnPage)
903: {
904: $link = "javascript:void(open('$url', 'FAQ-O-Matic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
905: }
906: else
907: {
908: $link = $url;
909: }
910:
911: # Add the text
912: if ($text ne "")
913: {
914: $template .=
1.173 www 915: "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
916: "<td bgcolor='#448844'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.172 www 917: }
918:
919: # Add the graphic
1.179 matthew 920: my $title = &mt('View the FAQ');
1.215 albertel 921: my $faqicon=&lonhttpdurl("/adm/lonMisc/smallFAQ.gif");
1.172 www 922: $template .= <<"ENDTEMPLATE";
1.218 albertel 923: <a href="$link" title="$title"><img src="$faqicon" border="0" alt="(FAQ: $topic)" /></a>
1.172 www 924: ENDTEMPLATE
925: if ($text ne '') { $template.='</td></tr></table>' };
926: return $template;
927:
1.44 bowersj2 928: }
1.37 matthew 929:
1.180 matthew 930: ###############################################################
931: ###############################################################
932:
1.45 matthew 933: =pod
934:
1.256 matthew 935: =item * change_content_javascript():
936:
937: This and the next function allow you to create small sections of an
938: otherwise static HTML page that you can update on the fly with
939: Javascript, even in Netscape 4.
940:
941: The Javascript fragment returned by this function (no E<lt>scriptE<gt> tag)
942: must be written to the HTML page once. It will prove the Javascript
943: function "change(name, content)". Calling the change function with the
944: name of the section
945: you want to update, matching the name passed to C<changable_area>, and
946: the new content you want to put in there, will put the content into
947: that area.
948:
949: B<Note>: Netscape 4 only reserves enough space for the changable area
950: to contain room for the original contents. You need to "make space"
951: for whatever changes you wish to make, and be B<sure> to check your
952: code in Netscape 4. This feature in Netscape 4 is B<not> powerful;
953: it's adequate for updating a one-line status display, but little more.
954: This script will set the space to 100% width, so you only need to
955: worry about height in Netscape 4.
956:
957: Modern browsers are much less limiting, and if you can commit to the
958: user not using Netscape 4, this feature may be used freely with
959: pretty much any HTML.
960:
961: =cut
962:
963: sub change_content_javascript {
964: # If we're on Netscape 4, we need to use Layer-based code
1.258 albertel 965: if ($env{'browser.type'} eq 'netscape' &&
966: $env{'browser.version'} =~ /^4\./) {
1.256 matthew 967: return (<<NETSCAPE4);
968: function change(name, content) {
969: doc = document.layers[name+"___escape"].layers[0].document;
970: doc.open();
971: doc.write(content);
972: doc.close();
973: }
974: NETSCAPE4
975: } else {
976: # Otherwise, we need to use semi-standards-compliant code
977: # (technically, "innerHTML" isn't standard but the equivalent
978: # is really scary, and every useful browser supports it
979: return (<<DOMBASED);
980: function change(name, content) {
981: element = document.getElementById(name);
982: element.innerHTML = content;
983: }
984: DOMBASED
985: }
986: }
987:
988: =pod
989:
990: =item * changable_area($name, $origContent):
991:
992: This provides a "changable area" that can be modified on the fly via
993: the Javascript code provided in C<change_content_javascript>. $name is
994: the name you will use to reference the area later; do not repeat the
995: same name on a given HTML page more then once. $origContent is what
996: the area will originally contain, which can be left blank.
997:
998: =cut
999:
1000: sub changable_area {
1001: my ($name, $origContent) = @_;
1002:
1.258 albertel 1003: if ($env{'browser.type'} eq 'netscape' &&
1004: $env{'browser.version'} =~ /^4\./) {
1.256 matthew 1005: # If this is netscape 4, we need to use the Layer tag
1006: return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>";
1007: } else {
1008: return "<span id='$name'>$origContent</span>";
1009: }
1010: }
1011:
1012: =pod
1013:
1014: =back
1015:
1016: =head1 Excel and CSV file utility routines
1017:
1018: =over 4
1019:
1020: =cut
1021:
1022: ###############################################################
1023: ###############################################################
1024:
1025: =pod
1026:
1.112 bowersj2 1027: =item * csv_translate($text)
1.37 matthew 1028:
1.185 www 1029: Translate $text to allow it to be output as a 'comma separated values'
1.37 matthew 1030: format.
1031:
1032: =cut
1033:
1.180 matthew 1034: ###############################################################
1035: ###############################################################
1.37 matthew 1036: sub csv_translate {
1037: my $text = shift;
1038: $text =~ s/\"/\"\"/g;
1.209 albertel 1039: $text =~ s/\n/ /g;
1.37 matthew 1040: return $text;
1041: }
1.180 matthew 1042:
1043: ###############################################################
1044: ###############################################################
1045:
1046: =pod
1047:
1048: =item * define_excel_formats
1049:
1050: Define some commonly used Excel cell formats.
1051:
1052: Currently supported formats:
1053:
1054: =over 4
1055:
1056: =item header
1057:
1058: =item bold
1059:
1060: =item h1
1061:
1062: =item h2
1063:
1064: =item h3
1065:
1.256 matthew 1066: =item h4
1067:
1068: =item i
1069:
1.180 matthew 1070: =item date
1071:
1072: =back
1073:
1074: Inputs: $workbook
1075:
1076: Returns: $format, a hash reference.
1077:
1078: =cut
1079:
1080: ###############################################################
1081: ###############################################################
1082: sub define_excel_formats {
1083: my ($workbook) = @_;
1084: my $format;
1085: $format->{'header'} = $workbook->add_format(bold => 1,
1086: bottom => 1,
1087: align => 'center');
1088: $format->{'bold'} = $workbook->add_format(bold=>1);
1089: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
1090: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
1091: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
1.255 matthew 1092: $format->{'h4'} = $workbook->add_format(bold=>1, size=>12);
1.246 matthew 1093: $format->{'i'} = $workbook->add_format(italic=>1);
1.180 matthew 1094: $format->{'date'} = $workbook->add_format(num_format=>
1.207 matthew 1095: 'mm/dd/yyyy hh:mm:ss');
1.180 matthew 1096: return $format;
1097: }
1098:
1099: ###############################################################
1100: ###############################################################
1.113 bowersj2 1101:
1102: =pod
1103:
1.256 matthew 1104: =item * create_workbook
1.255 matthew 1105:
1106: Create an Excel worksheet. If it fails, output message on the
1107: request object and return undefs.
1108:
1109: Inputs: Apache request object
1110:
1111: Returns (undef) on failure,
1112: Excel worksheet object, scalar with filename, and formats
1113: from &Apache::loncommon::define_excel_formats on success
1114:
1115: =cut
1116:
1117: ###############################################################
1118: ###############################################################
1119: sub create_workbook {
1120: my ($r) = @_;
1121: #
1122: # Create the excel spreadsheet
1123: my $filename = '/prtspool/'.
1.258 albertel 1124: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1.255 matthew 1125: time.'_'.rand(1000000000).'.xls';
1126: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1127: if (! defined($workbook)) {
1128: $r->log_error("Error creating excel spreadsheet $filename: $!");
1129: $r->print('<p>'.&mt("Unable to create new Excel file. ".
1130: "This error has been logged. ".
1131: "Please alert your LON-CAPA administrator").
1132: '</p>');
1133: return (undef);
1134: }
1135: #
1136: $workbook->set_tempdir('/home/httpd/perl/tmp');
1137: #
1138: my $format = &Apache::loncommon::define_excel_formats($workbook);
1139: return ($workbook,$filename,$format);
1140: }
1141:
1142: ###############################################################
1143: ###############################################################
1144:
1145: =pod
1146:
1.256 matthew 1147: =item * create_text_file
1.113 bowersj2 1148:
1.256 matthew 1149: Create a file to write to and eventually make available to the usre.
1150: If file creation fails, outputs an error message on the request object and
1151: return undefs.
1.113 bowersj2 1152:
1.256 matthew 1153: Inputs: Apache request object, and file suffix
1.113 bowersj2 1154:
1.256 matthew 1155: Returns (undef) on failure,
1156: Filehandle and filename on success.
1.113 bowersj2 1157:
1158: =cut
1159:
1.256 matthew 1160: ###############################################################
1161: ###############################################################
1162: sub create_text_file {
1163: my ($r,$suffix) = @_;
1164: if (! defined($suffix)) { $suffix = 'txt'; };
1165: my $fh;
1166: my $filename = '/prtspool/'.
1.258 albertel 1167: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1.256 matthew 1168: time.'_'.rand(1000000000).'.'.$suffix;
1169: $fh = Apache::File->new('>/home/httpd'.$filename);
1170: if (! defined($fh)) {
1171: $r->log_error("Couldn't open $filename for output $!");
1172: $r->print("Problems occured in creating the output file. ".
1173: "This error has been logged. ".
1174: "Please alert your LON-CAPA administrator.");
1.113 bowersj2 1175: }
1.256 matthew 1176: return ($fh,$filename)
1.113 bowersj2 1177: }
1178:
1179:
1.256 matthew 1180: =pod
1.113 bowersj2 1181:
1182: =back
1183:
1184: =cut
1.37 matthew 1185:
1186: ###############################################################
1.33 matthew 1187: ## Home server <option> list generating code ##
1188: ###############################################################
1.35 matthew 1189:
1.45 matthew 1190: =pod
1191:
1.112 bowersj2 1192: =head1 Home Server option list generating code
1193:
1194: =over 4
1195:
1196: =item * get_domains()
1.35 matthew 1197:
1198: Returns an array containing each of the domains listed in the hosts.tab
1199: file.
1200:
1201: =cut
1202:
1203: #-------------------------------------------
1.34 matthew 1204: sub get_domains {
1205: # The code below was stolen from "The Perl Cookbook", p 102, 1st ed.
1206: my @domains;
1207: my %seen;
1.356 albertel 1208: foreach my $dom (sort(values(%Apache::lonnet::hostdom))) {
1209: push(@domains,$dom) unless $seen{$dom}++;
1.34 matthew 1210: }
1211: return @domains;
1212: }
1.88 www 1213:
1.169 www 1214: # ------------------------------------------
1215:
1216: sub domain_select {
1217: my ($name,$value,$multiple)=@_;
1218: my %domains=map {
1219: $_ => $_.' '.$Apache::lonnet::domaindescription{$_}
1220: } &get_domains;
1221: if ($multiple) {
1222: $domains{''}=&mt('Any domain');
1.287 albertel 1223: return &multiple_select_form($name,$value,4,\%domains);
1.169 www 1224: } else {
1225: return &select_form($name,$value,%domains);
1226: }
1227: }
1228:
1.282 albertel 1229: #-------------------------------------------
1230:
1231: =pod
1232:
1.287 albertel 1233: =item * multiple_select_form($name,$value,$size,$hash,$order)
1.282 albertel 1234:
1235: Returns a string containing a <select> element int multiple mode
1236:
1237:
1238: Args:
1239: $name - name of the <select> element
1240: $value - sclara or array ref of values that should already be selected
1241: $size - number of rows long the select element is
1.283 albertel 1242: $hash - the elements should be 'option' => 'shown text'
1.282 albertel 1243: (shown text should already have been &mt())
1.284 albertel 1244: $order - (optional) array ref of the order to show the elments in
1.283 albertel 1245:
1.282 albertel 1246: =cut
1247:
1248: #-------------------------------------------
1.169 www 1249: sub multiple_select_form {
1.284 albertel 1250: my ($name,$value,$size,$hash,$order)=@_;
1.169 www 1251: my %selected = map { $_ => 1 } ref($value)?@{$value}:($value);
1252: my $output='';
1.191 matthew 1253: if (! defined($size)) {
1254: $size = 4;
1.283 albertel 1255: if (scalar(keys(%$hash))<4) {
1256: $size = scalar(keys(%$hash));
1.191 matthew 1257: }
1258: }
1.169 www 1259: $output.="\n<select name='$name' size='$size' multiple='1'>";
1.286 banghart 1260: my @order = ref($order) ? @$order
1.284 albertel 1261: : sort(keys(%$hash));
1262: foreach my $key (@order) {
1.356 albertel 1263: $output.='<option value="'.&HTML::Entities::encode($key,'"<>&').'" ';
1.284 albertel 1264: $output.='selected="selected" ' if ($selected{$key});
1265: $output.='>'.$hash->{$key}."</option>\n";
1.169 www 1266: }
1267: $output.="</select>\n";
1268: return $output;
1269: }
1270:
1.88 www 1271: #-------------------------------------------
1272:
1273: =pod
1274:
1.112 bowersj2 1275: =item * select_form($defdom,$name,%hash)
1.88 www 1276:
1277: Returns a string containing a <select name='$name' size='1'> form to
1278: allow a user to select options from a hash option_name => displayed text.
1279: See lonrights.pm for an example invocation and use.
1280:
1281: =cut
1282:
1283: #-------------------------------------------
1284: sub select_form {
1285: my ($def,$name,%hash) = @_;
1286: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1.128 albertel 1287: my @keys;
1288: if (exists($hash{'select_form_order'})) {
1289: @keys=@{$hash{'select_form_order'}};
1290: } else {
1291: @keys=sort(keys(%hash));
1292: }
1.356 albertel 1293: foreach my $key (@keys) {
1294: $selectform.=
1295: '<option value="'.&HTML::Entities::encode($key,'"<>&').'" '.
1296: ($key eq $def ? 'selected="selected" ' : '').
1297: ">".&mt($hash{$key})."</option>\n";
1.88 www 1298: }
1299: $selectform.="</select>";
1300: return $selectform;
1301: }
1302:
1.167 www 1303: sub gradeleveldescription {
1304: my $gradelevel=shift;
1305: my %gradelevels=(0 => 'Not specified',
1306: 1 => 'Grade 1',
1307: 2 => 'Grade 2',
1308: 3 => 'Grade 3',
1309: 4 => 'Grade 4',
1310: 5 => 'Grade 5',
1311: 6 => 'Grade 6',
1312: 7 => 'Grade 7',
1313: 8 => 'Grade 8',
1314: 9 => 'Grade 9',
1315: 10 => 'Grade 10',
1316: 11 => 'Grade 11',
1317: 12 => 'Grade 12',
1318: 13 => 'Grade 13',
1319: 14 => '100 Level',
1320: 15 => '200 Level',
1321: 16 => '300 Level',
1322: 17 => '400 Level',
1323: 18 => 'Graduate Level');
1324: return &mt($gradelevels{$gradelevel});
1325: }
1326:
1.163 www 1327: sub select_level_form {
1328: my ($deflevel,$name)=@_;
1329: unless ($deflevel) { $deflevel=0; }
1.167 www 1330: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1331: for (my $i=0; $i<=18; $i++) {
1332: $selectform.="<option value=\"$i\" ".
1.253 albertel 1333: ($i==$deflevel ? 'selected="selected" ' : '').
1.167 www 1334: ">".&gradeleveldescription($i)."</option>\n";
1335: }
1336: $selectform.="</select>";
1337: return $selectform;
1.163 www 1338: }
1.167 www 1339:
1.35 matthew 1340: #-------------------------------------------
1341:
1.45 matthew 1342: =pod
1343:
1.112 bowersj2 1344: =item * select_dom_form($defdom,$name,$includeempty)
1.35 matthew 1345:
1346: Returns a string containing a <select name='$name' size='1'> form to
1347: allow a user to select the domain to preform an operation in.
1348: See loncreateuser.pm for an example invocation and use.
1349:
1.90 www 1350: If the $includeempty flag is set, it also includes an empty choice ("no domain
1351: selected");
1352:
1.35 matthew 1353: =cut
1354:
1355: #-------------------------------------------
1.34 matthew 1356: sub select_dom_form {
1.90 www 1357: my ($defdom,$name,$includeempty) = @_;
1.34 matthew 1358: my @domains = get_domains();
1.90 www 1359: if ($includeempty) { @domains=('',@domains); }
1.34 matthew 1360: my $selectdomain = "<select name=\"$name\" size=\"1\">\n";
1.356 albertel 1361: foreach my $dom (@domains) {
1362: $selectdomain.="<option value=\"$dom\" ".
1363: ($dom eq $defdom ? 'selected="selected" ' : '').
1364: ">$dom</option>\n";
1.34 matthew 1365: }
1366: $selectdomain.="</select>";
1367: return $selectdomain;
1368: }
1369:
1.35 matthew 1370: #-------------------------------------------
1371:
1.45 matthew 1372: =pod
1373:
1.112 bowersj2 1374: =item * get_library_servers($domain)
1.35 matthew 1375:
1376: Returns a hash which contains keys like '103l3' and values like
1377: 'kirk.lite.msu.edu'. All of the keys will be for machines in the
1378: given $domain.
1379:
1380: =cut
1381:
1382: #-------------------------------------------
1.52 matthew 1383: sub get_library_servers {
1.33 matthew 1384: my $domain = shift;
1.52 matthew 1385: my %library_servers;
1.356 albertel 1386: foreach my $hostid (keys(%Apache::lonnet::libserv)) {
1387: if ($Apache::lonnet::hostdom{$hostid} eq $domain) {
1388: $library_servers{$hostid} = $Apache::lonnet::hostname{$hostid};
1.33 matthew 1389: }
1390: }
1.52 matthew 1391: return %library_servers;
1.33 matthew 1392: }
1393:
1.35 matthew 1394: #-------------------------------------------
1395:
1.45 matthew 1396: =pod
1397:
1.112 bowersj2 1398: =item * home_server_option_list($domain)
1.35 matthew 1399:
1400: returns a string which contains an <option> list to be used in a
1401: <select> form input. See loncreateuser.pm for an example.
1402:
1403: =cut
1404:
1405: #-------------------------------------------
1.33 matthew 1406: sub home_server_option_list {
1407: my $domain = shift;
1.52 matthew 1408: my %servers = &get_library_servers($domain);
1.33 matthew 1409: my $result = '';
1.356 albertel 1410: foreach my $hostid (sort(keys(%servers))) {
1.33 matthew 1411: $result.=
1.356 albertel 1412: '<option value="'.$hostid.'">'.
1413: $hostid.' '.$servers{$hostid}."</option>\n";
1.33 matthew 1414: }
1415: return $result;
1416: }
1.112 bowersj2 1417:
1418: =pod
1419:
1420: =back
1421:
1422: =cut
1.87 matthew 1423:
1424: ###############################################################
1.112 bowersj2 1425: ## Decoding User Agent ##
1.87 matthew 1426: ###############################################################
1427:
1428: =pod
1429:
1.112 bowersj2 1430: =head1 Decoding the User Agent
1431:
1432: =over 4
1433:
1434: =item * &decode_user_agent()
1.87 matthew 1435:
1436: Inputs: $r
1437:
1438: Outputs:
1439:
1440: =over 4
1441:
1.112 bowersj2 1442: =item * $httpbrowser
1.87 matthew 1443:
1.112 bowersj2 1444: =item * $clientbrowser
1.87 matthew 1445:
1.112 bowersj2 1446: =item * $clientversion
1.87 matthew 1447:
1.112 bowersj2 1448: =item * $clientmathml
1.87 matthew 1449:
1.112 bowersj2 1450: =item * $clientunicode
1.87 matthew 1451:
1.112 bowersj2 1452: =item * $clientos
1.87 matthew 1453:
1454: =back
1455:
1.157 matthew 1456: =back
1457:
1.87 matthew 1458: =cut
1459:
1460: ###############################################################
1461: ###############################################################
1462: sub decode_user_agent {
1.247 albertel 1463: my ($r)=@_;
1.87 matthew 1464: my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});
1465: my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});
1466: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
1.247 albertel 1467: if (!$httpbrowser && $r) { $httpbrowser=$r->header_in('User-Agent'); }
1.87 matthew 1468: my $clientbrowser='unknown';
1469: my $clientversion='0';
1470: my $clientmathml='';
1471: my $clientunicode='0';
1472: for (my $i=0;$i<=$#browsertype;$i++) {
1473: my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
1474: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
1475: $clientbrowser=$bname;
1476: $httpbrowser=~/$vreg/i;
1477: $clientversion=$1;
1478: $clientmathml=($clientversion>=$minv);
1479: $clientunicode=($clientversion>=$univ);
1480: }
1481: }
1482: my $clientos='unknown';
1483: if (($httpbrowser=~/linux/i) ||
1484: ($httpbrowser=~/unix/i) ||
1485: ($httpbrowser=~/ux/i) ||
1486: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
1487: if (($httpbrowser=~/vax/i) ||
1488: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
1489: if ($httpbrowser=~/next/i) { $clientos='next'; }
1490: if (($httpbrowser=~/mac/i) ||
1491: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
1492: if ($httpbrowser=~/win/i) { $clientos='win'; }
1493: if ($httpbrowser=~/embed/i) { $clientos='pda'; }
1494: return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
1495: $clientunicode,$clientos,);
1496: }
1497:
1.32 matthew 1498: ###############################################################
1499: ## Authentication changing form generation subroutines ##
1500: ###############################################################
1501: ##
1502: ## All of the authform_xxxxxxx subroutines take their inputs in a
1503: ## hash, and have reasonable default values.
1504: ##
1505: ## formname = the name given in the <form> tag.
1.35 matthew 1506: #-------------------------------------------
1507:
1.45 matthew 1508: =pod
1509:
1.112 bowersj2 1510: =head1 Authentication Routines
1511:
1512: =over 4
1513:
1514: =item * authform_xxxxxx
1.35 matthew 1515:
1516: The authform_xxxxxx subroutines provide javascript and html forms which
1517: handle some of the conveniences required for authentication forms.
1518: This is not an optimal method, but it works.
1519:
1520: See loncreateuser.pm for invocation and use examples.
1521:
1522: =over 4
1523:
1.112 bowersj2 1524: =item * authform_header
1.35 matthew 1525:
1.112 bowersj2 1526: =item * authform_authorwarning
1.35 matthew 1527:
1.112 bowersj2 1528: =item * authform_nochange
1.35 matthew 1529:
1.112 bowersj2 1530: =item * authform_kerberos
1.35 matthew 1531:
1.112 bowersj2 1532: =item * authform_internal
1.35 matthew 1533:
1.112 bowersj2 1534: =item * authform_filesystem
1.35 matthew 1535:
1536: =back
1537:
1.157 matthew 1538: =back
1539:
1.35 matthew 1540: =cut
1541:
1542: #-------------------------------------------
1.32 matthew 1543: sub authform_header{
1544: my %in = (
1545: formname => 'cu',
1.80 albertel 1546: kerb_def_dom => '',
1.32 matthew 1547: @_,
1548: );
1549: $in{'formname'} = 'document.' . $in{'formname'};
1550: my $result='';
1.80 albertel 1551:
1552: #---------------------------------------------- Code for upper case translation
1553: my $Javascript_toUpperCase;
1554: unless ($in{kerb_def_dom}) {
1555: $Javascript_toUpperCase =<<"END";
1556: switch (choice) {
1557: case 'krb': currentform.elements[choicearg].value =
1558: currentform.elements[choicearg].value.toUpperCase();
1559: break;
1560: default:
1561: }
1562: END
1563: } else {
1564: $Javascript_toUpperCase = "";
1565: }
1566:
1.165 raeburn 1567: my $radioval = "'nochange'";
1.174 matthew 1568: if (exists($in{'curr_authtype'}) &&
1569: defined($in{'curr_authtype'}) &&
1570: $in{'curr_authtype'} ne '') {
1571: $radioval = "'$in{'curr_authtype'}arg'";
1572: }
1.165 raeburn 1573: my $argfield = 'null';
1574: if ( grep/^mode$/,(keys %in) ) {
1575: if ($in{'mode'} eq 'modifycourse') {
1576: if ( grep/^curr_authtype$/,(keys %in) ) {
1577: $radioval = "'$in{'curr_authtype'}'";
1578: }
1579: if ( grep/^curr_autharg$/,(keys %in) ) {
1580: unless ($in{'curr_autharg'} eq '') {
1581: $argfield = "'$in{'curr_autharg'}'";
1582: }
1583: }
1584: }
1585: }
1586:
1.32 matthew 1587: $result.=<<"END";
1588: var current = new Object();
1.165 raeburn 1589: current.radiovalue = $radioval;
1590: current.argfield = $argfield;
1.32 matthew 1591:
1592: function changed_radio(choice,currentform) {
1593: var choicearg = choice + 'arg';
1594: // If a radio button in changed, we need to change the argfield
1595: if (current.radiovalue != choice) {
1596: current.radiovalue = choice;
1597: if (current.argfield != null) {
1598: currentform.elements[current.argfield].value = '';
1599: }
1600: if (choice == 'nochange') {
1601: current.argfield = null;
1602: } else {
1603: current.argfield = choicearg;
1604: switch(choice) {
1605: case 'krb':
1606: currentform.elements[current.argfield].value =
1607: "$in{'kerb_def_dom'}";
1608: break;
1609: default:
1610: break;
1611: }
1612: }
1613: }
1614: return;
1615: }
1.22 www 1616:
1.32 matthew 1617: function changed_text(choice,currentform) {
1618: var choicearg = choice + 'arg';
1619: if (currentform.elements[choicearg].value !='') {
1.80 albertel 1620: $Javascript_toUpperCase
1.32 matthew 1621: // clear old field
1622: if ((current.argfield != choicearg) && (current.argfield != null)) {
1623: currentform.elements[current.argfield].value = '';
1624: }
1625: current.argfield = choicearg;
1626: }
1627: set_auth_radio_buttons(choice,currentform);
1628: return;
1.20 www 1629: }
1.32 matthew 1630:
1631: function set_auth_radio_buttons(newvalue,currentform) {
1632: var i=0;
1633: while (i < currentform.login.length) {
1634: if (currentform.login[i].value == newvalue) { break; }
1635: i++;
1636: }
1637: if (i == currentform.login.length) {
1638: return;
1639: }
1640: current.radiovalue = newvalue;
1641: currentform.login[i].checked = true;
1642: return;
1643: }
1644: END
1645: return $result;
1646: }
1647:
1648: sub authform_authorwarning{
1649: my $result='';
1.144 matthew 1650: $result='<i>'.
1651: &mt('As a general rule, only authors or co-authors should be '.
1652: 'filesystem authenticated '.
1653: '(which allows access to the server filesystem).')."</i>\n";
1.32 matthew 1654: return $result;
1655: }
1656:
1657: sub authform_nochange{
1658: my %in = (
1659: formname => 'document.cu',
1660: kerb_def_dom => 'MSU.EDU',
1661: @_,
1662: );
1.281 albertel 1663: my $result = '<label>'.&mt('[_1] Do not change login data',
1.144 matthew 1664: '<input type="radio" name="login" value="nochange" '.
1665: 'checked="checked" onclick="'.
1.281 albertel 1666: "javascript:changed_radio('nochange',$in{'formname'});".'" />').
1667: '</label>';
1.32 matthew 1668: return $result;
1669: }
1670:
1671: sub authform_kerberos{
1672: my %in = (
1673: formname => 'document.cu',
1674: kerb_def_dom => 'MSU.EDU',
1.80 albertel 1675: kerb_def_auth => 'krb4',
1.32 matthew 1676: @_,
1677: );
1.165 raeburn 1678: my ($check4,$check5,$krbarg);
1.80 albertel 1679: if ($in{'kerb_def_auth'} eq 'krb5') {
1680: $check5 = " checked=\"on\"";
1681: } else {
1682: $check4 = " checked=\"on\"";
1683: }
1.165 raeburn 1684: $krbarg = $in{'kerb_def_dom'};
1685:
1686: my $krbcheck = "";
1687: if ( grep/^curr_authtype$/,(keys %in) ) {
1688: if ($in{'curr_authtype'} =~ m/^krb/) {
1689: $krbcheck = " checked=\"on\"";
1690: if ( grep/^curr_autharg$/,(keys %in) ) {
1691: $krbarg = $in{'curr_autharg'};
1692: }
1693: }
1694: }
1695:
1.144 matthew 1696: my $jscall = "javascript:changed_radio('krb',$in{'formname'});";
1697: my $result .= &mt
1698: ('[_1] Kerberos authenticated with domain [_2] '.
1.281 albertel 1699: '[_3] Version 4 [_4] Version 5 [_5]',
1700: '<label><input type="radio" name="login" value="krb" '.
1.165 raeburn 1701: 'onclick="'.$jscall.'" onchange="'.$jscall.'"'.$krbcheck.' />',
1.281 albertel 1702: '</label><input type="text" size="10" name="krbarg" '.
1.165 raeburn 1703: 'value="'.$krbarg.'" '.
1.144 matthew 1704: 'onchange="'.$jscall.'" />',
1.281 albertel 1705: '<label><input type="radio" name="krbver" value="4" '.$check4.' />',
1706: '</label><label><input type="radio" name="krbver" value="5" '.$check5.' />',
1707: '</label>');
1.32 matthew 1708: return $result;
1709: }
1710:
1711: sub authform_internal{
1712: my %args = (
1713: formname => 'document.cu',
1714: kerb_def_dom => 'MSU.EDU',
1715: @_,
1716: );
1.165 raeburn 1717:
1718: my $intcheck = "";
1719: my $intarg = 'value=""';
1720: if ( grep/^curr_authtype$/,(keys %args) ) {
1721: if ($args{'curr_authtype'} eq 'int') {
1722: $intcheck = " checked=\"on\"";
1723: if ( grep/^curr_autharg$/,(keys %args) ) {
1724: $intarg = "value=\"$args{'curr_autharg'}\"";
1725: }
1726: }
1727: }
1728:
1.144 matthew 1729: my $jscall = "javascript:changed_radio('int',$args{'formname'});";
1730: my $result.=&mt
1731: ('[_1] Internally authenticated (with initial password [_2])',
1.281 albertel 1732: '<label><input type="radio" name="login" value="int" '.$intcheck.
1.165 raeburn 1733: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1.281 albertel 1734: '</label><input type="text" size="10" name="intarg" '.$intarg.
1.165 raeburn 1735: ' onchange="'.$jscall.'" />');
1.32 matthew 1736: return $result;
1737: }
1738:
1739: sub authform_local{
1740: my %in = (
1741: formname => 'document.cu',
1742: kerb_def_dom => 'MSU.EDU',
1743: @_,
1744: );
1.165 raeburn 1745:
1746: my $loccheck = "";
1747: my $locarg = 'value=""';
1748: if ( grep/^curr_authtype$/,(keys %in) ) {
1749: if ($in{'curr_authtype'} eq 'loc') {
1750: $loccheck = " checked=\"on\"";
1751: if ( grep/^curr_autharg$/,(keys %in) ) {
1752: $locarg = "value=\"$in{'curr_autharg'}\"";
1753: }
1754: }
1755: }
1756:
1.144 matthew 1757: my $jscall = "javascript:changed_radio('loc',$in{'formname'});";
1.160 matthew 1758: my $result.=&mt('[_1] Local Authentication with argument [_2]',
1.281 albertel 1759: '<label><input type="radio" name="login" value="loc" '.$loccheck.
1.165 raeburn 1760: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1.281 albertel 1761: '</label><input type="text" size="10" name="locarg" '.$locarg.
1.165 raeburn 1762: ' onchange="'.$jscall.'" />');
1.32 matthew 1763: return $result;
1764: }
1765:
1766: sub authform_filesystem{
1767: my %in = (
1768: formname => 'document.cu',
1769: kerb_def_dom => 'MSU.EDU',
1770: @_,
1771: );
1.144 matthew 1772: my $jscall = "javascript:changed_radio('fsys',$in{'formname'});";
1773: my $result.= &mt
1774: ('[_1] Filesystem Authenticated (with initial password [_2])',
1.281 albertel 1775: '<label><input type="radio" name="login" value="fsys" '.
1.144 matthew 1776: 'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1.281 albertel 1777: '</label><input type="text" size="10" name="fsysarg" value="" '.
1.144 matthew 1778: 'onchange="'.$jscall.'" />');
1.32 matthew 1779: return $result;
1780: }
1781:
1.80 albertel 1782: ###############################################################
1783: ## Get Authentication Defaults for Domain ##
1784: ###############################################################
1785:
1786: =pod
1787:
1.112 bowersj2 1788: =head1 Domains and Authentication
1789:
1790: Returns default authentication type and an associated argument as
1791: listed in file 'domain.tab'.
1792:
1793: =over 4
1794:
1795: =item * get_auth_defaults
1.80 albertel 1796:
1797: get_auth_defaults($target_domain) returns the default authentication
1798: type and an associated argument (initial password or a kerberos domain).
1799: These values are stored in lonTabs/domain.tab
1800:
1801: ($def_auth, $def_arg) = &get_auth_defaults($target_domain);
1802:
1803: If target_domain is not found in domain.tab, returns nothing ('').
1804:
1805: =cut
1806:
1807: #-------------------------------------------
1808: sub get_auth_defaults {
1809: my $domain=shift;
1810: return ($Apache::lonnet::domain_auth_def{$domain},$Apache::lonnet::domain_auth_arg_def{$domain});
1811: }
1812: ###############################################################
1813: ## End Get Authentication Defaults for Domain ##
1814: ###############################################################
1815:
1816: ###############################################################
1817: ## Get Kerberos Defaults for Domain ##
1818: ###############################################################
1819: ##
1820: ## Returns default kerberos version and an associated argument
1821: ## as listed in file domain.tab. If not listed, provides
1822: ## appropriate default domain and kerberos version.
1823: ##
1824: #-------------------------------------------
1825:
1826: =pod
1827:
1.112 bowersj2 1828: =item * get_kerberos_defaults
1.80 albertel 1829:
1830: get_kerberos_defaults($target_domain) returns the default kerberos
1831: version and domain. If not found in domain.tabs, it defaults to
1832: version 4 and the domain of the server.
1833:
1834: ($def_version, $def_krb_domain) = &get_kerberos_defaults($target_domain);
1835:
1836: =cut
1837:
1838: #-------------------------------------------
1839: sub get_kerberos_defaults {
1840: my $domain=shift;
1841: my ($krbdef,$krbdefdom) =
1842: &Apache::loncommon::get_auth_defaults($domain);
1843: unless ($krbdef =~/^krb/ && $krbdefdom) {
1844: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
1845: my $krbdefdom=$1;
1846: $krbdefdom=~tr/a-z/A-Z/;
1847: $krbdef = "krb4";
1848: }
1849: return ($krbdef,$krbdefdom);
1850: }
1.112 bowersj2 1851:
1852: =pod
1853:
1854: =back
1855:
1856: =cut
1.32 matthew 1857:
1.46 matthew 1858: ###############################################################
1859: ## Thesaurus Functions ##
1860: ###############################################################
1.20 www 1861:
1.46 matthew 1862: =pod
1.20 www 1863:
1.112 bowersj2 1864: =head1 Thesaurus Functions
1865:
1866: =over 4
1867:
1868: =item * initialize_keywords
1.46 matthew 1869:
1870: Initializes the package variable %Keywords if it is empty. Uses the
1871: package variable $thesaurus_db_file.
1872:
1873: =cut
1874:
1875: ###################################################
1876:
1877: sub initialize_keywords {
1878: return 1 if (scalar keys(%Keywords));
1879: # If we are here, %Keywords is empty, so fill it up
1880: # Make sure the file we need exists...
1881: if (! -e $thesaurus_db_file) {
1882: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file".
1883: " failed because it does not exist");
1884: return 0;
1885: }
1886: # Set up the hash as a database
1887: my %thesaurus_db;
1888: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1889: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1890: &Apache::lonnet::logthis("Could not tie \%thesaurus_db to ".
1891: $thesaurus_db_file);
1892: return 0;
1893: }
1894: # Get the average number of appearances of a word.
1895: my $avecount = $thesaurus_db{'average.count'};
1896: # Put keywords (those that appear > average) into %Keywords
1897: while (my ($word,$data)=each (%thesaurus_db)) {
1898: my ($count,undef) = split /:/,$data;
1899: $Keywords{$word}++ if ($count > $avecount);
1900: }
1901: untie %thesaurus_db;
1902: # Remove special values from %Keywords.
1.356 albertel 1903: foreach my $value ('total.count','average.count') {
1904: delete($Keywords{$value}) if (exists($Keywords{$value}));
1.46 matthew 1905: }
1906: return 1;
1907: }
1908:
1909: ###################################################
1910:
1911: =pod
1912:
1.112 bowersj2 1913: =item * keyword($word)
1.46 matthew 1914:
1915: Returns true if $word is a keyword. A keyword is a word that appears more
1916: than the average number of times in the thesaurus database. Calls
1917: &initialize_keywords
1918:
1919: =cut
1920:
1921: ###################################################
1.20 www 1922:
1923: sub keyword {
1.46 matthew 1924: return if (!&initialize_keywords());
1925: my $word=lc(shift());
1926: $word=~s/\W//g;
1927: return exists($Keywords{$word});
1.20 www 1928: }
1.46 matthew 1929:
1930: ###############################################################
1931:
1932: =pod
1.20 www 1933:
1.112 bowersj2 1934: =item * get_related_words
1.46 matthew 1935:
1.160 matthew 1936: Look up a word in the thesaurus. Takes a scalar argument and returns
1.46 matthew 1937: an array of words. If the keyword is not in the thesaurus, an empty array
1938: will be returned. The order of the words returned is determined by the
1939: database which holds them.
1940:
1941: Uses global $thesaurus_db_file.
1942:
1943: =cut
1944:
1945: ###############################################################
1946: sub get_related_words {
1947: my $keyword = shift;
1948: my %thesaurus_db;
1949: if (! -e $thesaurus_db_file) {
1950: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file ".
1951: "failed because the file does not exist");
1952: return ();
1953: }
1954: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1955: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1956: return ();
1957: }
1958: my @Words=();
1.429 www 1959: my $count=0;
1.46 matthew 1960: if (exists($thesaurus_db{$keyword})) {
1.356 albertel 1961: # The first element is the number of times
1962: # the word appears. We do not need it now.
1.429 www 1963: my (undef,@RelatedWords) = (split(/:/,$thesaurus_db{$keyword}));
1964: my (undef,$mostfrequentcount)=split(/\,/,$RelatedWords[0]);
1965: my $threshold=$mostfrequentcount/10;
1966: foreach my $possibleword (@RelatedWords) {
1967: my ($word,$wordcount)=split(/\,/,$possibleword);
1968: if ($wordcount>$threshold) {
1969: push(@Words,$word);
1970: $count++;
1971: if ($count>10) { last; }
1972: }
1.20 www 1973: }
1974: }
1.46 matthew 1975: untie %thesaurus_db;
1976: return @Words;
1.14 harris41 1977: }
1.46 matthew 1978:
1.112 bowersj2 1979: =pod
1980:
1981: =back
1982:
1983: =cut
1.61 www 1984:
1985: # -------------------------------------------------------------- Plaintext name
1.81 albertel 1986: =pod
1987:
1.112 bowersj2 1988: =head1 User Name Functions
1989:
1990: =over 4
1991:
1.226 albertel 1992: =item * plainname($uname,$udom,$first)
1.81 albertel 1993:
1.112 bowersj2 1994: Takes a users logon name and returns it as a string in
1.226 albertel 1995: "first middle last generation" form
1996: if $first is set to 'lastname' then it returns it as
1997: 'lastname generation, firstname middlename' if their is a lastname
1.81 albertel 1998:
1999: =cut
1.61 www 2000:
1.295 www 2001:
1.81 albertel 2002: ###############################################################
1.61 www 2003: sub plainname {
1.226 albertel 2004: my ($uname,$udom,$first)=@_;
1.295 www 2005: my %names=&getnames($uname,$udom);
1.226 albertel 2006: my $name=&Apache::lonnet::format_name($names{'firstname'},
2007: $names{'middlename'},
2008: $names{'lastname'},
2009: $names{'generation'},$first);
2010: $name=~s/^\s+//;
1.62 www 2011: $name=~s/\s+$//;
2012: $name=~s/\s+/ /g;
1.353 albertel 2013: if ($name !~ /\S/) { $name=$uname.':'.$udom; }
1.62 www 2014: return $name;
1.61 www 2015: }
1.66 www 2016:
2017: # -------------------------------------------------------------------- Nickname
1.81 albertel 2018: =pod
2019:
1.112 bowersj2 2020: =item * nickname($uname,$udom)
1.81 albertel 2021:
2022: Gets a users name and returns it as a string as
2023:
2024: ""nickname""
1.66 www 2025:
1.81 albertel 2026: if the user has a nickname or
2027:
2028: "first middle last generation"
2029:
2030: if the user does not
2031:
2032: =cut
1.66 www 2033:
2034: sub nickname {
2035: my ($uname,$udom)=@_;
1.295 www 2036: my %names=&getnames($uname,$udom);
1.68 albertel 2037: my $name=$names{'nickname'};
1.66 www 2038: if ($name) {
2039: $name='"'.$name.'"';
2040: } else {
2041: $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
2042: $names{'lastname'}.' '.$names{'generation'};
2043: $name=~s/\s+$//;
2044: $name=~s/\s+/ /g;
2045: }
2046: return $name;
2047: }
2048:
1.295 www 2049: sub getnames {
2050: my ($uname,$udom)=@_;
1.433 ! albertel 2051: if ($udom eq 'public' && $uname eq 'public') {
! 2052: return ('lastname' => &mt('Public'));
! 2053: }
1.295 www 2054: my $id=$uname.':'.$udom;
2055: my ($names,$cached)=&Apache::lonnet::is_cached_new('namescache',$id);
2056: if ($cached) {
2057: return %{$names};
2058: } else {
2059: my %loadnames=&Apache::lonnet::get('environment',
2060: ['firstname','middlename','lastname','generation','nickname'],
2061: $udom,$uname);
2062: &Apache::lonnet::do_cache_new('namescache',$id,\%loadnames);
2063: return %loadnames;
2064: }
2065: }
1.61 www 2066:
2067: # ------------------------------------------------------------------ Screenname
1.81 albertel 2068:
2069: =pod
2070:
1.112 bowersj2 2071: =item * screenname($uname,$udom)
1.81 albertel 2072:
2073: Gets a users screenname and returns it as a string
2074:
2075: =cut
1.61 www 2076:
2077: sub screenname {
2078: my ($uname,$udom)=@_;
1.258 albertel 2079: if ($uname eq $env{'user.name'} &&
2080: $udom eq $env{'user.domain'}) {return $env{'environment.screenname'};}
1.212 albertel 2081: my %names=&Apache::lonnet::get('environment',['screenname'],$udom,$uname);
1.68 albertel 2082: return $names{'screenname'};
1.62 www 2083: }
2084:
1.212 albertel 2085:
1.62 www 2086: # ------------------------------------------------------------- Message Wrapper
2087:
2088: sub messagewrapper {
1.369 www 2089: my ($link,$username,$domain,$subject,$text)=@_;
1.62 www 2090: return
1.200 matthew 2091: '<a href="/adm/email?compose=individual&'.
1.369 www 2092: 'recname='.$username.'&recdom='.$domain.
2093: '&subject='.&escape($subject).'&text='.&escape($text).'" '.
1.200 matthew 2094: 'title="'.&mt('Send message').'">'.$link.'</a>';
1.74 www 2095: }
2096: # --------------------------------------------------------------- Notes Wrapper
2097:
2098: sub noteswrapper {
2099: my ($link,$un,$do)=@_;
2100: return
2101: "<a href='/adm/email?recordftf=retrieve&recname=$un&recdom=$do'>$link</a>";
1.62 www 2102: }
2103: # ------------------------------------------------------------- Aboutme Wrapper
2104:
2105: sub aboutmewrapper {
1.166 www 2106: my ($link,$username,$domain,$target)=@_;
1.205 www 2107: return '<a href="/adm/'.$domain.'/'.$username.'/aboutme"'.
1.200 matthew 2108: ($target?' target="$target"':'').' title="'.&mt('View this users personal page').'">'.$link.'</a>';
1.62 www 2109: }
2110:
2111: # ------------------------------------------------------------ Syllabus Wrapper
2112:
2113:
2114: sub syllabuswrapper {
1.109 matthew 2115: my ($linktext,$coursedir,$domain,$fontcolor)=@_;
2116: if ($fontcolor) {
2117: $linktext='<font color="'.$fontcolor.'">'.$linktext.'</font>';
2118: }
1.208 matthew 2119: return qq{<a href="/public/$domain/$coursedir/syllabus">$linktext</a>};
1.61 www 2120: }
1.14 harris41 2121:
1.208 matthew 2122: sub track_student_link {
1.268 albertel 2123: my ($linktext,$sname,$sdom,$target,$start) = @_;
2124: my $link ="/adm/trackstudent?";
1.208 matthew 2125: my $title = 'View recent activity';
2126: if (defined($sname) && $sname !~ /^\s*$/ &&
2127: defined($sdom) && $sdom !~ /^\s*$/) {
1.268 albertel 2128: $link .= "selected_student=$sname:$sdom";
1.208 matthew 2129: $title .= ' of this student';
1.268 albertel 2130: }
1.208 matthew 2131: if (defined($target) && $target !~ /^\s*$/) {
2132: $target = qq{target="$target"};
2133: } else {
2134: $target = '';
2135: }
1.268 albertel 2136: if ($start) { $link.='&start='.$start; }
1.208 matthew 2137: return qq{<a href="$link" title="$title" $target>$linktext</a>};
2138: }
2139:
1.112 bowersj2 2140: =pod
2141:
2142: =back
2143:
2144: =head1 Access .tab File Data
2145:
2146: =over 4
2147:
2148: =item * languageids()
2149:
2150: returns list of all language ids
2151:
2152: =cut
2153:
1.14 harris41 2154: sub languageids {
1.16 harris41 2155: return sort(keys(%language));
1.14 harris41 2156: }
2157:
1.112 bowersj2 2158: =pod
2159:
2160: =item * languagedescription()
2161:
2162: returns description of a specified language id
2163:
2164: =cut
2165:
1.14 harris41 2166: sub languagedescription {
1.125 www 2167: my $code=shift;
2168: return ($supported_language{$code}?'* ':'').
2169: $language{$code}.
1.126 www 2170: ($supported_language{$code}?' ('.&mt('interface available').')':'');
1.145 www 2171: }
2172:
2173: sub plainlanguagedescription {
2174: my $code=shift;
2175: return $language{$code};
2176: }
2177:
2178: sub supportedlanguagecode {
2179: my $code=shift;
2180: return $supported_language{$code};
1.97 www 2181: }
2182:
1.112 bowersj2 2183: =pod
2184:
2185: =item * copyrightids()
2186:
2187: returns list of all copyrights
2188:
2189: =cut
2190:
2191: sub copyrightids {
2192: return sort(keys(%cprtag));
2193: }
2194:
2195: =pod
2196:
2197: =item * copyrightdescription()
2198:
2199: returns description of a specified copyright id
2200:
2201: =cut
2202:
2203: sub copyrightdescription {
1.166 www 2204: return &mt($cprtag{shift(@_)});
1.112 bowersj2 2205: }
1.197 matthew 2206:
2207: =pod
2208:
1.192 taceyjo1 2209: =item * source_copyrightids()
2210:
2211: returns list of all source copyrights
2212:
2213: =cut
2214:
2215: sub source_copyrightids {
2216: return sort(keys(%scprtag));
2217: }
2218:
2219: =pod
2220:
2221: =item * source_copyrightdescription()
2222:
2223: returns description of a specified source copyright id
2224:
2225: =cut
2226:
2227: sub source_copyrightdescription {
2228: return &mt($scprtag{shift(@_)});
2229: }
1.112 bowersj2 2230:
2231: =pod
2232:
2233: =item * filecategories()
2234:
2235: returns list of all file categories
2236:
2237: =cut
2238:
2239: sub filecategories {
2240: return sort(keys(%category_extensions));
2241: }
2242:
2243: =pod
2244:
2245: =item * filecategorytypes()
2246:
2247: returns list of file types belonging to a given file
2248: category
2249:
2250: =cut
2251:
2252: sub filecategorytypes {
1.356 albertel 2253: my ($cat) = @_;
2254: return @{$category_extensions{lc($cat)}};
1.112 bowersj2 2255: }
2256:
2257: =pod
2258:
2259: =item * fileembstyle()
2260:
2261: returns embedding style for a specified file type
2262:
2263: =cut
2264:
2265: sub fileembstyle {
2266: return $fe{lc(shift(@_))};
1.169 www 2267: }
2268:
1.351 www 2269: sub filemimetype {
2270: return $fm{lc(shift(@_))};
2271: }
2272:
1.169 www 2273:
2274: sub filecategoryselect {
2275: my ($name,$value)=@_;
1.189 matthew 2276: return &select_form($value,$name,
1.169 www 2277: '' => &mt('Any category'),
2278: map { $_,$_ } sort(keys(%category_extensions)));
1.112 bowersj2 2279: }
2280:
2281: =pod
2282:
2283: =item * filedescription()
2284:
2285: returns description for a specified file type
2286:
2287: =cut
2288:
2289: sub filedescription {
1.188 matthew 2290: my $file_description = $fd{lc(shift())};
2291: $file_description =~ s:([\[\]]):~$1:g;
2292: return &mt($file_description);
1.112 bowersj2 2293: }
2294:
2295: =pod
2296:
2297: =item * filedescriptionex()
2298:
2299: returns description for a specified file type with
2300: extra formatting
2301:
2302: =cut
2303:
2304: sub filedescriptionex {
2305: my $ex=shift;
1.188 matthew 2306: my $file_description = $fd{lc($ex)};
2307: $file_description =~ s:([\[\]]):~$1:g;
2308: return '.'.$ex.' '.&mt($file_description);
1.112 bowersj2 2309: }
2310:
2311: # End of .tab access
2312: =pod
2313:
2314: =back
2315:
2316: =cut
2317:
2318: # ------------------------------------------------------------------ File Types
2319: sub fileextensions {
2320: return sort(keys(%fe));
2321: }
2322:
1.97 www 2323: # ----------------------------------------------------------- Display Languages
2324: # returns a hash with all desired display languages
2325: #
2326:
2327: sub display_languages {
2328: my %languages=();
1.356 albertel 2329: foreach my $lang (&preferred_languages()) {
2330: $languages{$lang}=1;
1.97 www 2331: }
2332: &get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']);
1.258 albertel 2333: if ($env{'form.displaylanguage'}) {
1.356 albertel 2334: foreach my $lang (split(/\s*(\,|\;|\:)\s*/,$env{'form.displaylanguage'})) {
2335: $languages{$lang}=1;
1.97 www 2336: }
2337: }
2338: return %languages;
1.14 harris41 2339: }
2340:
1.117 www 2341: sub preferred_languages {
2342: my @languages=();
1.258 albertel 2343: if ($env{'course.'.$env{'request.course.id'}.'.languages'}) {
1.117 www 2344: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,
1.258 albertel 2345: $env{'course.'.$env{'request.course.id'}.'.languages'}));
1.177 www 2346: }
1.258 albertel 2347: if ($env{'environment.languages'}) {
2348: @languages=split(/\s*(\,|\;|\:)\s*/,$env{'environment.languages'});
1.118 www 2349: }
1.162 www 2350: my $browser=(split(/\;/,$ENV{'HTTP_ACCEPT_LANGUAGE'}))[0];
2351: if ($browser) {
2352: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$browser));
2353: }
1.258 albertel 2354: if ($Apache::lonnet::domain_lang_def{$env{'user.domain'}}) {
1.118 www 2355: @languages=(@languages,
1.258 albertel 2356: $Apache::lonnet::domain_lang_def{$env{'user.domain'}});
1.118 www 2357: }
1.258 albertel 2358: if ($Apache::lonnet::domain_lang_def{$env{'request.role.domain'}}) {
1.118 www 2359: @languages=(@languages,
1.258 albertel 2360: $Apache::lonnet::domain_lang_def{$env{'request.role.domain'}});
1.118 www 2361: }
2362: if ($Apache::lonnet::domain_lang_def{
2363: $Apache::lonnet::perlvar{'lonDefDomain'}}) {
2364: @languages=(@languages,
2365: $Apache::lonnet::domain_lang_def{
2366: $Apache::lonnet::perlvar{'lonDefDomain'}});
2367: }
2368: # turn "en-ca" into "en-ca,en"
2369: my @genlanguages;
1.356 albertel 2370: foreach my $lang (@languages) {
2371: unless ($lang=~/\w/) { next; }
2372: push (@genlanguages,$lang);
2373: if ($lang=~/(\-|\_)/) {
2374: push(@genlanguages,(split(/(\-|\_)/,$lang))[0]);
1.118 www 2375: }
2376: }
2377: return @genlanguages;
1.117 www 2378: }
2379:
1.112 bowersj2 2380: ###############################################################
2381: ## Student Answer Attempts ##
2382: ###############################################################
2383:
2384: =pod
2385:
2386: =head1 Alternate Problem Views
2387:
2388: =over 4
2389:
2390: =item * get_previous_attempt($symb, $username, $domain, $course,
2391: $getattempt, $regexp, $gradesub)
2392:
2393: Return string with previous attempt on problem. Arguments:
2394:
2395: =over 4
2396:
2397: =item * $symb: Problem, including path
2398:
2399: =item * $username: username of the desired student
2400:
2401: =item * $domain: domain of the desired student
1.14 harris41 2402:
1.112 bowersj2 2403: =item * $course: Course ID
1.14 harris41 2404:
1.112 bowersj2 2405: =item * $getattempt: Leave blank for all attempts, otherwise put
2406: something
1.14 harris41 2407:
1.112 bowersj2 2408: =item * $regexp: if string matches this regexp, the string will be
2409: sent to $gradesub
1.14 harris41 2410:
1.112 bowersj2 2411: =item * $gradesub: routine that processes the string if it matches $regexp
1.14 harris41 2412:
1.112 bowersj2 2413: =back
1.14 harris41 2414:
1.112 bowersj2 2415: The output string is a table containing all desired attempts, if any.
1.16 harris41 2416:
1.112 bowersj2 2417: =cut
1.1 albertel 2418:
2419: sub get_previous_attempt {
1.43 ng 2420: my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub)=@_;
1.1 albertel 2421: my $prevattempts='';
1.43 ng 2422: no strict 'refs';
1.1 albertel 2423: if ($symb) {
1.3 albertel 2424: my (%returnhash)=
2425: &Apache::lonnet::restore($symb,$course,$domain,$username);
1.1 albertel 2426: if ($returnhash{'version'}) {
2427: my %lasthash=();
2428: my $version;
2429: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.356 albertel 2430: foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) {
2431: $lasthash{$key}=$returnhash{$version.':'.$key};
1.19 harris41 2432: }
1.1 albertel 2433: }
1.43 ng 2434: $prevattempts='<table border="0" width="100%"><tr><td bgcolor="#777777">';
1.40 ng 2435: $prevattempts.='<table border="0" width="100%"><tr bgcolor="#e6ffff"><td>History</td>';
1.356 albertel 2436: foreach my $key (sort(keys(%lasthash))) {
2437: my ($ign,@parts) = split(/\./,$key);
1.41 ng 2438: if ($#parts > 0) {
1.31 albertel 2439: my $data=$parts[-1];
2440: pop(@parts);
1.40 ng 2441: $prevattempts.='<td>Part '.join('.',@parts).'<br />'.$data.' </td>';
1.31 albertel 2442: } else {
1.41 ng 2443: if ($#parts == 0) {
2444: $prevattempts.='<th>'.$parts[0].'</th>';
2445: } else {
2446: $prevattempts.='<th>'.$ign.'</th>';
2447: }
1.31 albertel 2448: }
1.16 harris41 2449: }
1.40 ng 2450: if ($getattempt eq '') {
2451: for ($version=1;$version<=$returnhash{'version'};$version++) {
2452: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Transaction '.$version.'</td>';
1.356 albertel 2453: foreach my $key (sort(keys(%lasthash))) {
1.40 ng 2454: my $value;
1.356 albertel 2455: if ($key =~ /timestamp/) {
2456: $value=scalar(localtime($returnhash{$version.':'.$key}));
1.40 ng 2457: } else {
1.356 albertel 2458: $value=$returnhash{$version.':'.$key};
1.40 ng 2459: }
1.369 www 2460: $prevattempts.='<td>'.&unescape($value).' </td>';
1.40 ng 2461: }
2462: }
1.1 albertel 2463: }
1.40 ng 2464: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Current</td>';
1.356 albertel 2465: foreach my $key (sort(keys(%lasthash))) {
1.5 albertel 2466: my $value;
1.356 albertel 2467: if ($key =~ /timestamp/) {
2468: $value=scalar(localtime($lasthash{$key}));
1.5 albertel 2469: } else {
1.356 albertel 2470: $value=$lasthash{$key};
1.5 albertel 2471: }
1.369 www 2472: $value=&unescape($value);
1.356 albertel 2473: if ($key =~/$regexp$/ && (defined &$gradesub)) {$value = &$gradesub($value)}
1.40 ng 2474: $prevattempts.='<td>'.$value.' </td>';
1.16 harris41 2475: }
1.40 ng 2476: $prevattempts.='</tr></table></td></tr></table>';
1.1 albertel 2477: } else {
2478: $prevattempts='Nothing submitted - no attempts.';
2479: }
2480: } else {
2481: $prevattempts='No data.';
2482: }
1.10 albertel 2483: }
2484:
1.107 albertel 2485: sub relative_to_absolute {
2486: my ($url,$output)=@_;
2487: my $parser=HTML::TokeParser->new(\$output);
2488: my $token;
2489: my $thisdir=$url;
2490: my @rlinks=();
2491: while ($token=$parser->get_token) {
2492: if ($token->[0] eq 'S') {
2493: if ($token->[1] eq 'a') {
2494: if ($token->[2]->{'href'}) {
2495: $rlinks[$#rlinks+1]=$token->[2]->{'href'};
2496: }
2497: } elsif ($token->[1] eq 'img' || $token->[1] eq 'embed' ) {
2498: $rlinks[$#rlinks+1]=$token->[2]->{'src'};
2499: } elsif ($token->[1] eq 'base') {
2500: $thisdir=$token->[2]->{'href'};
2501: }
2502: }
2503: }
2504: $thisdir=~s-/[^/]*$--;
1.356 albertel 2505: foreach my $link (@rlinks) {
2506: unless (($link=~/^http:\/\//i) ||
2507: ($link=~/^\//) ||
2508: ($link=~/^javascript:/i) ||
2509: ($link=~/^mailto:/i) ||
2510: ($link=~/^\#/)) {
2511: my $newlocation=&Apache::lonnet::hreflocation($thisdir,$link);
2512: $output=~s/(\"|\'|\=\s*)\Q$link\E(\"|\'|\s|\>)/$1$newlocation$2/;
1.107 albertel 2513: }
2514: }
2515: # -------------------------------------------------- Deal with Applet codebases
2516: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
2517: return $output;
2518: }
2519:
1.112 bowersj2 2520: =pod
2521:
2522: =item * get_student_view
2523:
2524: show a snapshot of what student was looking at
2525:
2526: =cut
2527:
1.10 albertel 2528: sub get_student_view {
1.186 albertel 2529: my ($symb,$username,$domain,$courseid,$target,$moreenv) = @_;
1.114 www 2530: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2531: my (%form);
1.10 albertel 2532: my @elements=('symb','courseid','domain','username');
2533: foreach my $element (@elements) {
1.186 albertel 2534: $form{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2535: }
1.186 albertel 2536: if (defined($moreenv)) {
2537: %form=(%form,%{$moreenv});
2538: }
1.236 albertel 2539: if (defined($target)) { $form{'grade_target'} = $target; }
1.107 albertel 2540: $feedurl=&Apache::lonnet::clutter($feedurl);
1.186 albertel 2541: my $userview=&Apache::lonnet::ssi_body($feedurl,%form);
1.11 albertel 2542: $userview=~s/\<body[^\>]*\>//gi;
2543: $userview=~s/\<\/body\>//gi;
2544: $userview=~s/\<html\>//gi;
2545: $userview=~s/\<\/html\>//gi;
2546: $userview=~s/\<head\>//gi;
2547: $userview=~s/\<\/head\>//gi;
2548: $userview=~s/action\s*\=/would_be_action\=/gi;
1.107 albertel 2549: $userview=&relative_to_absolute($feedurl,$userview);
1.11 albertel 2550: return $userview;
2551: }
2552:
1.112 bowersj2 2553: =pod
2554:
2555: =item * get_student_answers()
2556:
2557: show a snapshot of how student was answering problem
2558:
2559: =cut
2560:
1.11 albertel 2561: sub get_student_answers {
1.100 sakharuk 2562: my ($symb,$username,$domain,$courseid,%form) = @_;
1.114 www 2563: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2564: my (%moreenv);
1.11 albertel 2565: my @elements=('symb','courseid','domain','username');
2566: foreach my $element (@elements) {
1.186 albertel 2567: $moreenv{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2568: }
1.186 albertel 2569: $moreenv{'grade_target'}='answer';
2570: %moreenv=(%form,%moreenv);
2571: my $userview=&Apache::lonnet::ssi('/res/'.$feedurl,%moreenv);
1.10 albertel 2572: return $userview;
1.1 albertel 2573: }
1.116 albertel 2574:
2575: =pod
2576:
2577: =item * &submlink()
2578:
1.242 albertel 2579: Inputs: $text $uname $udom $symb $target
1.116 albertel 2580:
2581: Returns: A link to grades.pm such as to see the SUBM view of a student
2582:
2583: =cut
2584:
2585: ###############################################
2586: sub submlink {
1.242 albertel 2587: my ($text,$uname,$udom,$symb,$target)=@_;
1.116 albertel 2588: if (!($uname && $udom)) {
2589: (my $cursymb, my $courseid,$udom,$uname)=
2590: &Apache::lonxml::whichuser($symb);
2591: if (!$symb) { $symb=$cursymb; }
2592: }
1.254 matthew 2593: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
1.369 www 2594: $symb=&escape($symb);
1.242 albertel 2595: if ($target) { $target="target=\"$target\""; }
2596: return '<a href="/adm/grades?&command=submission&'.
2597: 'symb='.$symb.'&student='.$uname.
2598: '&userdom='.$udom.'" '.$target.'>'.$text.'</a>';
2599: }
2600: ##############################################
2601:
2602: =pod
2603:
2604: =item * &pgrdlink()
2605:
2606: Inputs: $text $uname $udom $symb $target
2607:
2608: Returns: A link to grades.pm such as to see the PGRD view of a student
2609:
2610: =cut
2611:
2612: ###############################################
2613: sub pgrdlink {
2614: my $link=&submlink(@_);
2615: $link=~s/(&command=submission)/$1&showgrading=yes/;
2616: return $link;
2617: }
2618: ##############################################
2619:
2620: =pod
2621:
2622: =item * &pprmlink()
2623:
2624: Inputs: $text $uname $udom $symb $target
2625:
2626: Returns: A link to parmset.pm such as to see the PPRM view of a
1.283 albertel 2627: student and a specific resource
1.242 albertel 2628:
2629: =cut
2630:
2631: ###############################################
2632: sub pprmlink {
2633: my ($text,$uname,$udom,$symb,$target)=@_;
2634: if (!($uname && $udom)) {
2635: (my $cursymb, my $courseid,$udom,$uname)=
2636: &Apache::lonxml::whichuser($symb);
2637: if (!$symb) { $symb=$cursymb; }
2638: }
1.254 matthew 2639: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
1.369 www 2640: $symb=&escape($symb);
1.242 albertel 2641: if ($target) { $target="target=\"$target\""; }
2642: return '<a href="/adm/parmset?&command=set&'.
2643: 'symb='.$symb.'&uname='.$uname.
2644: '&udom='.$udom.'" '.$target.'>'.$text.'</a>';
1.116 albertel 2645: }
2646: ##############################################
1.37 matthew 2647:
1.112 bowersj2 2648: =pod
2649:
2650: =back
2651:
2652: =cut
2653:
1.37 matthew 2654: ###############################################
1.51 www 2655:
2656:
2657: sub timehash {
2658: my @ltime=localtime(shift);
2659: return ( 'seconds' => $ltime[0],
2660: 'minutes' => $ltime[1],
2661: 'hours' => $ltime[2],
2662: 'day' => $ltime[3],
2663: 'month' => $ltime[4]+1,
2664: 'year' => $ltime[5]+1900,
2665: 'weekday' => $ltime[6],
2666: 'dayyear' => $ltime[7]+1,
2667: 'dlsav' => $ltime[8] );
2668: }
2669:
1.370 www 2670: sub utc_string {
2671: my ($date)=@_;
1.371 www 2672: return strftime("%Y%m%dT%H%M%SZ",gmtime($date));
1.370 www 2673: }
2674:
1.51 www 2675: sub maketime {
2676: my %th=@_;
2677: return POSIX::mktime(
2678: ($th{'seconds'},$th{'minutes'},$th{'hours'},
1.210 www 2679: $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,-1));
1.70 www 2680: }
2681:
2682: #########################################
1.51 www 2683:
2684: sub findallcourses {
1.355 albertel 2685: my ($roles) = @_;
2686: my %roles;
2687: if (ref($roles)) { %roles = map { $_ => 1 } @{$roles}; }
1.348 albertel 2688: my %courses;
1.51 www 2689: my $now=time;
1.348 albertel 2690: foreach my $key (keys(%env)) {
2691: if ( $key=~m{^user\.role\.(\w+)\./(\w+)/(\w+)} ) {
2692: my ($role,$domain,$id) = ($1,$2,$3);
2693: next if ($role eq 'ca' || $role eq 'aa');
1.355 albertel 2694: next if (%roles && !exists($roles{$role}));
1.354 albertel 2695: my ($starttime,$endtime)=split(/\./,$env{$key});
1.51 www 2696: my $active=1;
2697: if ($starttime) {
2698: if ($now<$starttime) { $active=0; }
2699: }
2700: if ($endtime) {
2701: if ($now>$endtime) { $active=0; }
2702: }
1.348 albertel 2703: if ($active) { $courses{$domain.'_'.$id}=1; }
1.51 www 2704: }
2705: }
1.348 albertel 2706: return keys(%courses);
1.51 www 2707: }
1.37 matthew 2708:
1.54 www 2709: ###############################################
1.60 matthew 2710: ###############################################
2711:
2712: =pod
2713:
1.112 bowersj2 2714: =head1 Domain Template Functions
2715:
2716: =over 4
2717:
2718: =item * &determinedomain()
1.60 matthew 2719:
2720: Inputs: $domain (usually will be undef)
2721:
1.63 www 2722: Returns: Determines which domain should be used for designs
1.60 matthew 2723:
2724: =cut
1.54 www 2725:
1.60 matthew 2726: ###############################################
1.63 www 2727: sub determinedomain {
2728: my $domain=shift;
2729: if (! $domain) {
1.60 matthew 2730: # Determine domain if we have not been given one
2731: $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
1.258 albertel 2732: if ($env{'user.domain'}) { $domain=$env{'user.domain'}; }
2733: if ($env{'request.role.domain'}) {
2734: $domain=$env{'request.role.domain'};
1.60 matthew 2735: }
2736: }
1.63 www 2737: return $domain;
2738: }
2739: ###############################################
2740: =pod
2741:
1.112 bowersj2 2742: =item * &domainlogo()
1.63 www 2743:
2744: Inputs: $domain (usually will be undef)
2745:
2746: Returns: A link to a domain logo, if the domain logo exists.
2747: If the domain logo does not exist, a description of the domain.
2748:
2749: =cut
1.112 bowersj2 2750:
1.63 www 2751: ###############################################
2752: sub domainlogo {
2753: my $domain = &determinedomain(shift);
2754: # See if there is a logo
1.59 www 2755: if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') {
1.215 albertel 2756: my $logo=&lonhttpdurl("/adm/lonDomLogos/$domain.gif");
2757: return '<img src="'.$logo.'" alt="'.$domain.'" />';
1.60 matthew 2758: } elsif(exists($Apache::lonnet::domaindescription{$domain})) {
2759: return $Apache::lonnet::domaindescription{$domain};
1.59 www 2760: } else {
1.60 matthew 2761: return '';
1.59 www 2762: }
2763: }
1.63 www 2764: ##############################################
2765:
2766: =pod
2767:
1.112 bowersj2 2768: =item * &designparm()
1.63 www 2769:
2770: Inputs: $which parameter; $domain (usually will be undef)
2771:
2772: Returns: value of designparamter $which
2773:
2774: =cut
1.112 bowersj2 2775:
1.397 albertel 2776:
1.400 albertel 2777: ##############################################
1.397 albertel 2778: sub designparm {
2779: my ($which,$domain)=@_;
1.258 albertel 2780: if ($env{'browser.blackwhite'} eq 'on') {
1.110 www 2781: if ($which=~/\.(font|alink|vlink|link)$/) {
2782: return '#000000';
2783: }
2784: if ($which=~/\.(pgbg|sidebg)$/) {
2785: return '#FFFFFF';
2786: }
2787: if ($which=~/\.tabbg$/) {
2788: return '#CCCCCC';
2789: }
2790: }
1.397 albertel 2791: if (exists($env{'environment.color.'.$which})) {
1.258 albertel 2792: return $env{'environment.color.'.$which};
1.96 www 2793: }
1.63 www 2794: $domain=&determinedomain($domain);
1.397 albertel 2795: if (exists($designhash{$domain.'.'.$which})) {
1.63 www 2796: return $designhash{$domain.'.'.$which};
2797: } else {
2798: return $designhash{'default.'.$which};
2799: }
2800: }
1.59 www 2801:
1.60 matthew 2802: ###############################################
2803: ###############################################
2804:
2805: =pod
2806:
1.112 bowersj2 2807: =back
2808:
2809: =head1 HTTP Helpers
2810:
2811: =over 4
2812:
2813: =item * &bodytag()
1.60 matthew 2814:
2815: Returns a uniform header for LON-CAPA web pages.
2816:
2817: Inputs:
2818:
1.112 bowersj2 2819: =over 4
2820:
2821: =item * $title, A title to be displayed on the page.
2822:
2823: =item * $function, the current role (can be undef).
2824:
2825: =item * $addentries, extra parameters for the <body> tag.
2826:
2827: =item * $bodyonly, if defined, only return the <body> tag.
2828:
2829: =item * $domain, if defined, force a given domain.
2830:
2831: =item * $forcereg, if page should register as content page (relevant for
1.86 www 2832: text interface only)
1.60 matthew 2833:
1.326 albertel 2834: =item * $customtitle, alternate text to use instead of $title
2835: in the title box that appears, this text
2836: is not auto translated like the $title is
1.309 albertel 2837:
2838: =item * $notopbar, if true, keep the 'what is this' info but remove the
2839: navigational links
1.317 albertel 2840:
1.338 albertel 2841: =item * $bgcolor, used to override the bgcolor on a webpage to a specific value
2842:
2843: =item * $notitle, if true keep the nav controls, but remove the title bar
2844:
1.361 albertel 2845: =item * $no_inline_link, if true and in remote mode, don't show the
2846: 'Switch To Inline Menu' link
2847:
1.112 bowersj2 2848: =back
2849:
1.60 matthew 2850: Returns: A uniform header for LON-CAPA web pages.
2851: If $bodyonly is nonzero, a string containing a <body> tag will be returned.
2852: If $bodyonly is undef or zero, an html string containing a <body> tag and
2853: other decorations will be returned.
2854:
2855: =cut
2856:
1.54 www 2857: sub bodytag {
1.309 albertel 2858: my ($title,$function,$addentries,$bodyonly,$domain,$forcereg,$customtitle,
1.361 albertel 2859: $notopbar,$bgcolor,$notitle,$no_inline_link)=@_;
1.339 albertel 2860:
1.117 www 2861: $title=&mt($title);
1.339 albertel 2862:
1.183 matthew 2863: $function = &get_users_function() if (!$function);
1.339 albertel 2864: my $img = &designparm($function.'.img',$domain);
2865: my $font = &designparm($function.'.font',$domain);
2866: my $pgbg = $bgcolor || &designparm($function.'.pgbg',$domain);
2867:
2868: my %design = ( 'style' => 'margin-top: 0px',
2869: 'bgcolor' => $pgbg,
2870: 'text' => $font,
2871: 'alink' => &designparm($function.'.alink',$domain),
2872: 'vlink' => &designparm($function.'.vlink',$domain),
2873: 'link' => &designparm($function.'.link',$domain),);
2874: @$addentries{keys(%design)} = @design{keys(%design)};
2875:
1.63 www 2876: # role and realm
1.378 raeburn 2877: my ($role,$realm) = split(/\./,$env{'request.role'},2);
2878: if ($role eq 'ca') {
2879: my ($rdom,$rname) = ($realm =~ m-^/(\w+)/(\w+)$-);
2880: $realm = &plainname($rname,$rdom).':'.$rdom;
2881: }
1.55 www 2882: # realm
1.258 albertel 2883: if ($env{'request.course.id'}) {
1.378 raeburn 2884: if ($env{'request.role'} !~ /^cr/) {
2885: $role = &Apache::lonnet::plaintext($role,&course_type());
2886: }
1.359 albertel 2887: $realm = $env{'course.'.$env{'request.course.id'}.'.description'};
1.378 raeburn 2888: } else {
2889: $role = &Apache::lonnet::plaintext($role);
1.54 www 2890: }
1.433 ! albertel 2891:
1.359 albertel 2892: if (!$realm) { $realm=' '; }
1.55 www 2893: # Set messages
1.60 matthew 2894: my $messages=&domainlogo($domain);
1.101 www 2895: # Port for miniserver
1.83 albertel 2896: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
2897: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
1.330 albertel 2898:
2899: my $extra_body_attr = &make_attr_string($forcereg,$addentries);
1.329 albertel 2900:
1.101 www 2901: # construct main body tag
1.359 albertel 2902: my $bodytag = "<body $extra_body_attr>".
2903: &Apache::lontexconvert::init_math_support();
1.252 albertel 2904:
1.332 albertel 2905: if ($bodyonly
2906: || ($env{'request.state'} eq 'construct'
2907: && $env{'environment.remote'} ne 'off' )) {
1.60 matthew 2908: return $bodytag;
1.258 albertel 2909: } elsif ($env{'browser.interface'} eq 'textual') {
1.95 www 2910: # Accessibility
1.224 raeburn 2911:
1.337 albertel 2912: $bodytag.=&Apache::lonmenu::menubuttons($forcereg,$forcereg);
1.338 albertel 2913: if (!$notitle) {
1.337 albertel 2914: $bodytag.='<h1>LON-CAPA: '.$title.'</h1>';
2915: }
2916: return $bodytag;
1.359 albertel 2917: }
2918:
1.410 albertel 2919: my $name = &plainname($env{'user.name'},$env{'user.domain'});
1.433 ! albertel 2920: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
! 2921: undef($role);
! 2922: }
1.359 albertel 2923:
2924: my $roleinfo=(<<ENDROLE);
2925: <td class="LC_title_bar_who">
2926: <div class="LC_title_bar_name">
1.410 albertel 2927: $name
1.361 albertel 2928:
1.359 albertel 2929: </div>
2930: <div class="LC_title_bar_role">
1.361 albertel 2931: $role
1.359 albertel 2932: </div>
2933: <div class="LC_title_bar_realm">
1.361 albertel 2934: $realm
1.359 albertel 2935: </div>
1.206 albertel 2936: </td>
2937: ENDROLE
1.235 raeburn 2938:
1.359 albertel 2939: my $titleinfo = '<span class="LC_title_bar_title">'.$title.'</span>';
2940: if ($customtitle) {
2941: $titleinfo = $customtitle;
2942: }
2943: #
2944: # Extra info if you are the DC
2945: my $dc_info = '';
2946: if ($env{'user.adv'} && exists($env{'user.role.dc./'.
2947: $env{'course.'.$env{'request.course.id'}.
2948: '.domain'}.'/'})) {
2949: my $cid = $env{'request.course.id'};
2950: $dc_info.= $cid.' '.$env{'course.'.$cid.'.internal.coursecode'};
1.380 www 2951: $dc_info =~ s/\s+$//;
1.359 albertel 2952: $dc_info = '('.$dc_info.')';
2953: }
2954:
2955: if ($env{'environment.remote'} eq 'off') {
2956: # No Remote
1.258 albertel 2957: if ($env{'request.state'} eq 'construct') {
1.359 albertel 2958: $forcereg=1;
2959: }
2960:
2961: if (!$customtitle && $env{'request.state'} eq 'construct') {
2962: # this is for resources; directories have customtitle, and crumbs
2963: # and select recent are created in lonpubdir.pm
1.229 albertel 2964: my ($uname,$thisdisfn)=
1.258 albertel 2965: ($env{'request.filename'} =~ m|^/home/([^/]+)/public_html/(.*)|);
1.229 albertel 2966: my $formaction='/priv/'.$uname.'/'.$thisdisfn;
2967: $formaction=~s/\/+/\//g;
2968:
1.359 albertel 2969: my $parentpath = '';
2970: my $lastitem = '';
2971: if ($thisdisfn =~ m-(.+/)([^/]*)$-) {
2972: $parentpath = $1;
2973: $lastitem = $2;
2974: } else {
2975: $lastitem = $thisdisfn;
2976: }
2977: $titleinfo =
1.401 albertel 2978: &Apache::loncommon::help_open_menu('','',3,'Authoring').
1.359 albertel 2979: '<b>Construction Space</b>: '.
2980: '<form name="dirs" method="post" action="'.$formaction
2981: .'" target="_top"><tt><b>'
2982: .&Apache::lonhtmlcommon::crumbs($uname.'/'.$parentpath,'_top','/priv','','+1',1)."<font size=\"+1\">$lastitem</font></b></tt><br />"
2983: .&Apache::lonhtmlcommon::select_recent('construct','recent','this.form.action=this.form.recent.value;this.form.submit()')
2984: .'</form>'
2985: .&Apache::lonmenu::constspaceform();
1.235 raeburn 2986: }
1.359 albertel 2987:
1.337 albertel 2988: my $titletable;
1.338 albertel 2989: if (!$notitle) {
1.337 albertel 2990: $titletable =
1.359 albertel 2991: '<table id="LC_title_bar">'.
2992: "<tr><td> $titleinfo $dc_info</td>".$roleinfo.
2993: '</tr></table>';
1.337 albertel 2994: }
1.359 albertel 2995: if ($notopbar) {
2996: $bodytag .= $titletable;
2997: } else {
2998: if ($env{'request.state'} eq 'construct') {
1.337 albertel 2999: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,$forcereg,
3000: $titletable);
1.272 raeburn 3001: } else {
1.336 albertel 3002: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,$forcereg).
1.359 albertel 3003: $titletable;
1.272 raeburn 3004: }
1.235 raeburn 3005: }
3006: return $bodytag;
1.94 www 3007: }
1.95 www 3008:
1.93 www 3009: #
1.95 www 3010: # Top frame rendering, Remote is up
1.93 www 3011: #
1.359 albertel 3012:
3013: my $upperleft='<img src="http://'.$ENV{'HTTP_HOST'}.':'.
3014: $lonhttpdPort.$img.'" alt="'.$function.'" />';
3015:
1.305 www 3016: # Explicit link to get inline menu
1.361 albertel 3017: my $menu= ($no_inline_link?''
3018: :'<br /><a href="/adm/remote?action=collapse">'.&mt('Switch to Inline Menu Mode').'</a>');
1.245 matthew 3019: #
1.338 albertel 3020: if ($notitle) {
1.337 albertel 3021: return $bodytag;
3022: }
1.94 www 3023: return(<<ENDBODY);
1.60 matthew 3024: $bodytag
1.359 albertel 3025: <table id="LC_title_bar" class="LC_with_remote">
1.368 albertel 3026: <tr><td class="LC_title_bar_role_logo">$upperleft</td>
1.359 albertel 3027: <td class="LC_title_bar_domain_logo">$messages </td>
1.54 www 3028: </tr>
1.359 albertel 3029: <tr><td>$titleinfo $dc_info $menu</td>
3030: $roleinfo
1.368 albertel 3031: </tr>
1.356 albertel 3032: </table>
1.54 www 3033: ENDBODY
1.182 matthew 3034: }
3035:
1.330 albertel 3036: sub make_attr_string {
3037: my ($register,$attr_ref) = @_;
3038:
3039: if ($attr_ref && !ref($attr_ref)) {
3040: die("addentries Must be a hash ref ".
3041: join(':',caller(1))." ".
3042: join(':',caller(0))." ");
3043: }
3044:
3045: if ($register) {
1.339 albertel 3046: my ($on_load,$on_unload);
3047: foreach my $key (keys(%{$attr_ref})) {
3048: if (lc($key) eq 'onload') {
3049: $on_load.=$attr_ref->{$key}.';';
3050: delete($attr_ref->{$key});
3051:
3052: } elsif (lc($key) eq 'onunload') {
3053: $on_unload.=$attr_ref->{$key}.';';
3054: delete($attr_ref->{$key});
3055: }
3056: }
3057: $attr_ref->{'onload'} =
3058: &Apache::lonmenu::loadevents(). $on_load;
3059: $attr_ref->{'onunload'}=
3060: &Apache::lonmenu::unloadevents().$on_unload;
3061: }
3062:
3063: # Accessibility font enhance
3064: if ($env{'browser.fontenhance'} eq 'on') {
3065: my $style;
3066: foreach my $key (keys(%{$attr_ref})) {
3067: if (lc($key) eq 'style') {
3068: $style.=$attr_ref->{$key}.';';
3069: delete($attr_ref->{$key});
3070: }
3071: }
3072: $attr_ref->{'style'}=$style.'; font-size: x-large;';
1.330 albertel 3073: }
1.339 albertel 3074:
3075: if ($env{'browser.blackwhite'} eq 'on') {
3076: delete($attr_ref->{'font'});
3077: delete($attr_ref->{'link'});
3078: delete($attr_ref->{'alink'});
3079: delete($attr_ref->{'vlink'});
3080: delete($attr_ref->{'bgcolor'});
3081: delete($attr_ref->{'background'});
3082: }
3083:
1.330 albertel 3084: my $attr_string;
3085: foreach my $attr (keys(%$attr_ref)) {
3086: $attr_string .= " $attr=\"".$attr_ref->{$attr}.'" ';
3087: }
3088: return $attr_string;
3089: }
3090:
3091:
1.182 matthew 3092: ###############################################
1.251 albertel 3093: ###############################################
3094:
3095: =pod
3096:
3097: =back
3098:
1.306 albertel 3099: =head1 HTML Helpers
1.251 albertel 3100:
3101: =over 4
3102:
3103: =item * &endbodytag()
3104:
3105: Returns a uniform footer for LON-CAPA web pages.
3106:
1.306 albertel 3107: Inputs: none
1.251 albertel 3108:
3109: =back
3110:
3111: =cut
3112:
3113: sub endbodytag {
3114: my $endbodytag='</body>';
1.269 albertel 3115: $endbodytag=&Apache::lontexconvert::jsMath_process()."\n".$endbodytag;
1.315 albertel 3116: if ( exists( $env{'internal.head.redirect'} ) ) {
3117: $endbodytag=
3118: "<br /><a href=\"$env{'internal.head.redirect'}\">".
3119: &mt('Continue').'</a>'.
3120: $endbodytag;
3121: }
1.251 albertel 3122: return $endbodytag;
3123: }
3124:
1.352 albertel 3125: =pod
3126:
3127: =over 4
3128:
3129: =item * &standard_css()
3130:
3131: Returns a style sheet
3132:
3133: Inputs: (all optional)
3134: domain -> force to color decorate a page for a specific
3135: domain
3136: function -> force usage of a specific rolish color scheme
3137: bgcolor -> override the default page bgcolor
3138:
3139: =back
3140:
3141: =cut
3142:
1.343 albertel 3143: sub standard_css {
1.345 albertel 3144: my ($function,$domain,$bgcolor) = @_;
1.352 albertel 3145: $function = &get_users_function() if (!$function);
3146: my $img = &designparm($function.'.img', $domain);
3147: my $tabbg = &designparm($function.'.tabbg', $domain);
3148: my $font = &designparm($function.'.font', $domain);
1.345 albertel 3149: my $sidebg = &designparm($function.'.sidebg',$domain);
1.382 albertel 3150: my $pgbg_or_bgcolor =
3151: $bgcolor ||
1.352 albertel 3152: &designparm($function.'.pgbg', $domain);
1.382 albertel 3153: my $pgbg = &designparm($function.'.pgbg', $domain);
1.352 albertel 3154: my $alink = &designparm($function.'.alink', $domain);
3155: my $vlink = &designparm($function.'.vlink', $domain);
3156: my $link = &designparm($function.'.link', $domain);
3157:
3158: my $sans = 'Arial,Helvetica,sans-serif';
1.395 albertel 3159: my $mono = 'monospace';
1.352 albertel 3160: my $data_table_head = $tabbg;
3161: my $data_table_light = '#EEEEEE';
3162: my $data_table_dark = '#DDD';
1.424 albertel 3163: my $data_table_darker = '#CCC';
1.349 albertel 3164: my $data_table_highlight = '#FFFF00';
1.352 albertel 3165: my $mail_new = '#FFBB77';
3166: my $mail_new_hover = '#DD9955';
3167: my $mail_read = '#BBBB77';
3168: my $mail_read_hover = '#999944';
3169: my $mail_replied = '#AAAA88';
3170: my $mail_replied_hover = '#888855';
3171: my $mail_other = '#99BBBB';
3172: my $mail_other_hover = '#669999';
1.391 albertel 3173: my $table_header = '#DDDDDD';
1.392 albertel 3174:
3175: my $border = ($env{'browser.type'} eq 'explorer') ? '0px 2px 0px 2px'
3176: : '0px 3px 0px 4px';
1.343 albertel 3177: return <<END;
1.345 albertel 3178: h1, h2, h3, th { font-family: $sans }
1.343 albertel 3179: a:focus { color: red; background: yellow }
3180: table.thinborder { border-collapse: collapse; }
1.426 albertel 3181: table.thinborder tr th { border-style: solid; border-width: 1px; background: $tabbg;}
3182: table.thinborder tr td { border-style: solid; border-width: 1px}
3183:
1.343 albertel 3184: form, .inline { display: inline; }
3185: .center { text-align: center; }
1.395 albertel 3186: .LC_filename {font-family: $mono;}
1.350 albertel 3187: .LC_error {
3188: color: red;
3189: font-size: larger;
3190: }
1.394 albertel 3191: .LC_warning {
3192: color: red;
3193: }
1.350 albertel 3194: .LC_success {
3195: color: green;
3196: }
1.346 albertel 3197:
1.392 albertel 3198: table#LC_top_nav, table#LC_menubuttons {
1.345 albertel 3199: width: 100%;
3200: background: $pgbg;
1.392 albertel 3201: border: 2px;
1.402 albertel 3202: border-collapse: separate;
1.403 albertel 3203: padding: 0px;
1.345 albertel 3204: }
1.392 albertel 3205:
1.409 albertel 3206: table#LC_title_bar, table.LC_breadcrumbs, table#LC_nav_location,
1.393 albertel 3207: table#LC_title_bar.LC_with_remote {
1.359 albertel 3208: width: 100%;
1.392 albertel 3209: border-color: $pgbg;
3210: border-style: solid;
3211: border-width: $border;
3212:
1.379 albertel 3213: background: $pgbg;
3214: font-family: $sans;
1.392 albertel 3215: border-collapse: collapse;
1.403 albertel 3216: padding: 0px;
1.359 albertel 3217: }
1.392 albertel 3218:
1.409 albertel 3219: table.LC_docs_path {
3220: width: 100%;
3221: border: 0;
3222: background: $pgbg;
3223: font-family: $sans;
3224: border-collapse: collapse;
3225: padding: 0px;
3226: }
3227:
1.359 albertel 3228: table#LC_title_bar td {
3229: background: $tabbg;
3230: }
3231: table#LC_title_bar td.LC_title_bar_who {
3232: background: $tabbg;
3233: color: $font;
1.427 albertel 3234: font: small $sans;
1.359 albertel 3235: text-align: right;
3236: }
3237: span.LC_title_bar_title {
1.416 albertel 3238: font: bold x-large $sans;
1.359 albertel 3239: }
3240: table#LC_title_bar td.LC_title_bar_domain_logo {
3241: background: $sidebg;
3242: text-align: right;
1.368 albertel 3243: padding: 0px;
3244: }
3245: table#LC_title_bar td.LC_title_bar_role_logo {
3246: background: $sidebg;
3247: padding: 0px;
1.359 albertel 3248: }
3249:
1.346 albertel 3250: table#LC_menubuttons_mainmenu {
3251: background: $pgbg;
3252: border: 0px;
3253: border-spacing: 1px;
1.372 albertel 3254: padding: 0px 1px;
1.346 albertel 3255: margin: 0px;
3256: border-collapse: separate;
3257: }
3258: table#LC_menubuttons img, table#LC_menubuttons_mainmenu img {
3259: border: 0px;
3260: }
1.345 albertel 3261: table#LC_top_nav td {
3262: background: $tabbg;
1.392 albertel 3263: border: 0px;
1.407 albertel 3264: font-size: small;
1.345 albertel 3265: }
3266: table#LC_top_nav td a, div#LC_top_nav a {
3267: color: $font;
3268: font-family: $sans;
3269: }
1.364 albertel 3270: table#LC_top_nav td.LC_top_nav_logo {
3271: background: $tabbg;
1.432 albertel 3272: text-align: left;
1.408 albertel 3273: white-space: nowrap;
1.432 albertel 3274: width: 31px;
1.408 albertel 3275: }
3276: table#LC_top_nav td.LC_top_nav_logo img {
1.432 albertel 3277: border: 0px;
1.408 albertel 3278: vertical-align: bottom;
1.364 albertel 3279: }
1.432 albertel 3280: table#LC_top_nav td.LC_top_nav_exit,
3281: table#LC_top_nav td.LC_top_nav_help {
3282: width: 2.0em;
3283: }
1.409 albertel 3284: table.LC_breadcrumbs td, table.LC_docs_path td {
1.357 albertel 3285: background: $tabbg;
3286: color: $font;
3287: font-family: $sans;
1.358 albertel 3288: font-size: smaller;
1.357 albertel 3289: }
1.411 albertel 3290: table.LC_breadcrumbs td.LC_breadcrumbs_component,
1.409 albertel 3291: table.LC_docs_path td.LC_docs_path_component {
1.357 albertel 3292: background: $tabbg;
3293: color: $font;
3294: font-family: $sans;
3295: font-size: larger;
3296: text-align: right;
3297: }
1.383 albertel 3298: td.LC_table_cell_checkbox {
3299: text-align: center;
3300: }
3301:
1.346 albertel 3302: .LC_menubuttons_inline_text {
3303: color: $font;
3304: font-family: $sans;
3305: font-size: smaller;
3306: }
3307:
3308: td.LC_menubuttons_text {
3309: color: $font;
3310: font-family: $sans;
3311: }
3312: td.LC_menubuttons_img {
3313: background: $tabbg;
3314: }
3315: .LC_current_location {
3316: font-family: $sans;
3317: background: $tabbg;
3318: }
3319: .LC_new_mail {
3320: font-family: $sans;
3321: font-weight: bold;
3322: }
1.347 albertel 3323:
1.349 albertel 3324: table.LC_data_table, table.LC_mail_list {
1.347 albertel 3325: border: 1px solid #000000;
1.402 albertel 3326: border-collapse: separate;
1.426 albertel 3327: border-spacing: 1px;
1.347 albertel 3328: }
1.422 albertel 3329: .LC_data_table_dense {
3330: font-size: small;
3331: }
1.349 albertel 3332: table.LC_data_table tr th, table.LC_calendar tr th, table.LC_mail_list tr th {
3333: font-weight: bold;
3334: background-color: $data_table_head;
1.421 albertel 3335: font-size: smaller;
1.347 albertel 3336: }
3337: table.LC_data_table tr td {
1.349 albertel 3338: background-color: $data_table_light;
1.425 albertel 3339: padding: 2px;
1.347 albertel 3340: }
3341: table.LC_data_table tr.LC_even_row td {
1.349 albertel 3342: background-color: $data_table_dark;
1.347 albertel 3343: }
1.425 albertel 3344: table.LC_data_table tr.LC_data_table_highlight td {
3345: background-color: $data_table_darker;
3346: }
1.421 albertel 3347: table.LC_data_table tr.LC_empty_row td {
1.347 albertel 3348: background-color: #FFFFFF;
1.421 albertel 3349: font-weight: bold;
3350: font-style: italic;
3351: text-align: center;
3352: padding: 8px;
1.347 albertel 3353: }
3354:
1.349 albertel 3355: table.LC_calendar {
3356: border: 1px solid #000000;
3357: border-collapse: collapse;
3358: }
3359: table.LC_calendar_pickdate {
3360: font-size: xx-small;
3361: }
3362: table.LC_calendar tr td {
3363: border: 1px solid #000000;
3364: vertical-align: top;
3365: }
3366: table.LC_calendar tr td.LC_calendar_day_empty {
3367: background-color: $data_table_dark;
3368: }
3369: table.LC_calendar tr td.LC_calendar_day_current {
3370: background-color: $data_table_highlight;
3371: }
3372:
3373: table.LC_mail_list tr.LC_mail_new {
3374: background-color: $mail_new;
3375: }
3376: table.LC_mail_list tr.LC_mail_new:hover {
3377: background-color: $mail_new_hover;
3378: }
3379: table.LC_mail_list tr.LC_mail_read {
3380: background-color: $mail_read;
3381: }
3382: table.LC_mail_list tr.LC_mail_read:hover {
3383: background-color: $mail_read_hover;
3384: }
3385: table.LC_mail_list tr.LC_mail_replied {
3386: background-color: $mail_replied;
3387: }
3388: table.LC_mail_list tr.LC_mail_replied:hover {
3389: background-color: $mail_replied_hover;
3390: }
3391: table.LC_mail_list tr.LC_mail_other {
3392: background-color: $mail_other;
3393: }
3394: table.LC_mail_list tr.LC_mail_other:hover {
3395: background-color: $mail_other_hover;
3396: }
1.385 albertel 3397:
1.386 albertel 3398: table#LC_portfolio_actions {
3399: width: auto;
3400: background: $pgbg;
3401: border: 0px;
3402: border-spacing: 2px 2px;
3403: padding: 0px;
3404: margin: 0px;
3405: border-collapse: separate;
3406: }
3407: table#LC_portfolio_actions td.LC_label {
3408: background: $tabbg;
3409: text-align: right;
3410: }
3411: table#LC_portfolio_actions td.LC_value {
3412: background: $tabbg;
3413: }
1.385 albertel 3414:
1.391 albertel 3415: table#LC_cstr_controls {
3416: width: 100%;
3417: border-collapse: collapse;
3418: }
3419: table#LC_cstr_controls tr td {
3420: border: 4px solid $pgbg;
3421: padding: 4px;
3422: text-align: center;
3423: background: $tabbg;
3424: }
3425: table#LC_cstr_controls tr th {
3426: border: 4px solid $pgbg;
3427: background: $table_header;
3428: text-align: center;
3429: font-family: $sans;
3430: font-size: smaller;
3431: }
3432:
1.389 albertel 3433: table#LC_browser {
3434:
3435: }
3436: table#LC_browser tr th {
1.391 albertel 3437: background: $table_header;
1.389 albertel 3438: }
1.390 albertel 3439: table#LC_browser tr td {
3440: padding: 2px;
3441: }
1.389 albertel 3442: table#LC_browser tr.LC_browser_file,
3443: table#LC_browser tr.LC_browser_file_published {
3444: background: #CCFF88;
3445: }
3446: table#LC_browser tr.LC_browser_file_locked,
3447: table#LC_browser tr.LC_browser_file_unpublished {
3448: background: #FFAA99;
1.387 albertel 3449: }
1.389 albertel 3450: table#LC_browser tr.LC_browser_file_obsolete {
3451: background: #AAAAAA;
1.387 albertel 3452: }
1.389 albertel 3453: table#LC_browser tr.LC_browser_file_modified {
3454: background: #FFFF77;
1.387 albertel 3455: }
1.389 albertel 3456: table#LC_browser tr.LC_browser_folder {
3457: background: #CCCCFF;
1.387 albertel 3458: }
1.388 albertel 3459: span.LC_current_location {
3460: font-size: x-large;
3461: background: $pgbg;
3462: }
1.387 albertel 3463:
1.395 albertel 3464: span.LC_parm_menu_item {
3465: font-size: larger;
3466: font-family: $sans;
3467: }
3468: span.LC_parm_scope_all {
3469: color: red;
3470: }
3471: span.LC_parm_scope_folder {
3472: color: green;
3473: }
3474: span.LC_parm_scope_resource {
3475: color: orange;
3476: }
3477: span.LC_parm_part {
3478: color: blue;
3479: }
3480: span.LC_parm_folder, span.LC_parm_symb {
3481: font-size: x-small;
3482: font-family: $mono;
3483: color: #AAAAAA;
3484: }
3485:
1.396 albertel 3486: td.LC_parm_overview_level_menu, td.LC_parm_overview_map_menu,
3487: td.LC_parm_overview_parm_selectors, td.LC_parm_overview_parm_restrictions {
3488: border: 1px solid black;
3489: border-collapse: collapse;
3490: }
3491: table.LC_parm_overview_restrictions td {
3492: border-width: 1px 4px 1px 4px;
3493: border-style: solid;
3494: border-color: $pgbg;
3495: text-align: center;
3496: }
3497: table.LC_parm_overview_restrictions th {
3498: background: $tabbg;
3499: border-width: 1px 4px 1px 4px;
3500: border-style: solid;
3501: border-color: $pgbg;
3502: }
1.398 albertel 3503: table#LC_helpmenu {
3504: border: 0px;
3505: height: 55px;
3506: border-spacing: 0px;
3507: }
3508:
3509: table#LC_helpmenu fieldset legend {
3510: font-size: larger;
3511: font-weight: bold;
3512: }
1.397 albertel 3513: table#LC_helpmenu_links {
3514: width: 100%;
3515: border: 1px solid black;
3516: background: $pgbg;
3517: padding: 0px;
3518: border-spacing: 1px;
3519: }
3520: table#LC_helpmenu_links tr td {
3521: padding: 1px;
3522: background: $tabbg;
1.399 albertel 3523: text-align: center;
3524: font-weight: bold;
1.397 albertel 3525: }
1.396 albertel 3526:
1.397 albertel 3527: table#LC_helpmenu_links a:link, table#LC_helpmenu_links a:visited,
3528: table#LC_helpmenu_links a:active {
3529: text-decoration: none;
3530: color: $font;
3531: }
3532: table#LC_helpmenu_links a:hover {
3533: text-decoration: underline;
3534: color: $vlink;
3535: }
1.396 albertel 3536:
1.417 albertel 3537: .LC_chrt_popup_exists {
3538: border: 1px solid #339933;
3539: margin: -1px;
3540: }
3541: .LC_chrt_popup_up {
3542: border: 1px solid yellow;
3543: margin: -1px;
3544: }
3545: .LC_chrt_popup {
3546: border: 1px solid #8888FF;
3547: background: #CCCCFF;
3548: }
3549:
1.421 albertel 3550: table.LC_pick_box {
3551: width: 100%;
3552: border-collapse: separate;
3553: background: white;
3554: border: 1px solid black;
3555: border-spacing: 1px;
3556: }
3557: table.LC_pick_box td.LC_pick_box_title {
3558: background: $tabbg;
3559: font-weight: bold;
3560: text-align: right;
3561: width: 184px;
3562: padding: 8px;
3563: }
1.424 albertel 3564: table.LC_pick_box td.LC_pick_box_separator {
1.421 albertel 3565: padding: 0px;
3566: height: 1px;
3567: background: black;
3568: }
3569: table.LC_pick_box td.LC_pick_box_submit {
3570: text-align: right;
3571: }
3572:
1.424 albertel 3573: table.LC_group_priv_box {
3574: background: white;
3575: border: 1px solid black;
3576: border-spacing: 1px;
3577: }
3578: table.LC_group_priv_box td.LC_pick_box_title {
3579: background: $tabbg;
3580: font-weight: bold;
3581: text-align: right;
3582: width: 184px;
3583: }
3584: table.LC_group_priv_box td.LC_groups_fixed {
3585: background: $data_table_light;
3586: text-align: center;
3587: }
3588: table.LC_group_priv_box td.LC_groups_optional {
3589: background: $data_table_dark;
3590: text-align: center;
3591: }
3592: table.LC_group_priv_box td.LC_groups_functionality {
3593: background: $data_table_darker;
3594: text-align: center;
3595: font-weight: bold;
3596: }
3597: table.LC_group_priv td {
3598: text-align: left;
3599: padding: 0px;
3600: }
3601:
1.421 albertel 3602: table.LC_notify_front_page {
3603: background: white;
3604: border: 1px solid black;
3605: padding: 8px;
3606: }
3607: table.LC_notify_front_page td {
3608: padding: 8px;
3609: }
1.424 albertel 3610: .LC_navbuttons {
3611: margin: 2ex 0ex 2ex 0ex;
3612: }
1.423 albertel 3613: .LC_topic_bar {
3614: font-family: $sans;
3615: font-weight: bold;
3616: width: 100%;
3617: background: $tabbg;
3618: vertical-align: middle;
3619: margin: 2ex 0ex 2ex 0ex;
3620: }
3621: .LC_topic_bar span {
3622: vertical-align: middle;
3623: }
3624: .LC_topic_bar img {
3625: vertical-align: bottom;
3626: }
3627: table.LC_course_group_status {
3628: margin: 20px;
3629: }
3630: table.LC_status_selector td {
3631: vertical-align: top;
3632: text-align: center;
1.424 albertel 3633: padding: 4px;
3634: }
3635: table.LC_descriptive_input td.LC_description {
3636: vertical-align: top;
3637: text-align: right;
3638: font-weight: bold;
1.423 albertel 3639: }
1.421 albertel 3640:
1.343 albertel 3641: END
3642: }
3643:
1.306 albertel 3644: =pod
3645:
3646: =over 4
3647:
3648: =item * &headtag()
3649:
3650: Returns a uniform footer for LON-CAPA web pages.
3651:
1.307 albertel 3652: Inputs: $title - optional title for the head
3653: $head_extra - optional extra HTML to put inside the <head>
1.315 albertel 3654: $args - optional arguments
1.319 albertel 3655: force_register - if is true call registerurl so the remote is
3656: informed
1.415 albertel 3657: redirect -> array ref of
3658: 1- seconds before redirect occurs
3659: 2- url to redirect to
3660: 3- whether the side effect should occur
1.315 albertel 3661: (side effect of setting
3662: $env{'internal.head.redirect'} to the url
3663: redirected too)
1.352 albertel 3664: domain -> force to color decorate a page for a specific
3665: domain
3666: function -> force usage of a specific rolish color scheme
3667: bgcolor -> override the default page bgcolor
3668:
1.306 albertel 3669: =back
3670:
3671: =cut
3672:
3673: sub headtag {
1.313 albertel 3674: my ($title,$head_extra,$args) = @_;
1.306 albertel 3675:
1.363 albertel 3676: my $function = $args->{'function'} || &get_users_function();
3677: my $domain = $args->{'domain'} || &determinedomain();
3678: my $bgcolor = $args->{'bgcolor'} || &designparm($function.'.pgbg',$domain);
1.418 albertel 3679: my $url = join(':',$env{'user.name'},$env{'user.domain'},
3680: #time(),
3681: $env{'environment.color.timestamp'},
1.363 albertel 3682: $function,$domain,$bgcolor);
3683:
1.369 www 3684: $url = '/adm/css/'.&escape($url).'.css';
1.363 albertel 3685:
1.308 albertel 3686: my $result =
3687: '<head>'.
1.340 albertel 3688: &font_settings().
1.308 albertel 3689: &Apache::lonhtmlcommon::htmlareaheaders();
1.319 albertel 3690:
3691: if ($args->{'force_register'}) {
3692: $result .= &Apache::lonmenu::registerurl(1);
3693: }
3694:
1.314 albertel 3695: if (ref($args->{'redirect'})) {
1.414 albertel 3696: my ($time,$url,$inhibit_continue) = @{$args->{'redirect'}};
1.315 albertel 3697: $url = &Apache::lonenc::check_encrypt($url);
1.414 albertel 3698: if (!$inhibit_continue) {
3699: $env{'internal.head.redirect'} = $url;
3700: }
1.313 albertel 3701: $result.=<<ADDMETA
3702: <meta http-equiv="pragma" content="no-cache" />
1.344 albertel 3703: <meta http-equiv="Refresh" content="$time; url=$url" />
1.313 albertel 3704: ADDMETA
3705: }
1.306 albertel 3706: if (!defined($title)) {
3707: $title = 'The LearningOnline Network with CAPA';
3708: }
3709:
1.414 albertel 3710: $result .= '<title> LON-CAPA '.&mt($title).'</title>'
3711: .'<link rel="stylesheet" type="text/css" href="'.$url.'" />'
3712: .$head_extra;
1.306 albertel 3713: return $result;
3714: }
3715:
3716: =pod
3717:
3718: =over 4
3719:
1.340 albertel 3720: =item * &font_settings()
3721:
3722: Returns neccessary <meta> to set the proper encoding
3723:
3724: Inputs: none
3725:
3726: =back
3727:
3728: =cut
3729:
3730: sub font_settings {
3731: my $headerstring='';
3732: if (($env{'browser.os'} eq 'mac') && (!$env{'browser.mathml'})) {
3733: $headerstring.=
3734: '<meta Content-Type="text/html; charset=x-mac-roman" />';
3735: } elsif (!$env{'browser.mathml'} && $env{'browser.unicode'}) {
3736: $headerstring.=
3737: '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
3738: }
3739: return $headerstring;
3740: }
3741:
1.341 albertel 3742: =pod
3743:
3744: =over 4
3745:
3746: =item * &xml_begin()
3747:
3748: Returns the needed doctype and <html>
3749:
3750: Inputs: none
3751:
3752: =back
3753:
3754: =cut
3755:
3756: sub xml_begin {
3757: my $output='';
3758:
1.342 albertel 3759: &Apache::lonhtmlcommon::init_htmlareafields();
3760:
1.341 albertel 3761: if ($env{'browser.mathml'}) {
3762: $output='<?xml version="1.0"?>'
3763: #.'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>'."\n"
3764: # .'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" '
3765:
3766: # .'<!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">] >'
3767: .'<!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">'
3768: .'<html xmlns:math="http://www.w3.org/1998/Math/MathML" '
3769: .'xmlns="http://www.w3.org/1999/xhtml">';
3770: } else {
3771: $output='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html>';
3772: }
3773: return $output;
3774: }
1.340 albertel 3775:
3776: =pod
3777:
3778: =over 4
3779:
1.306 albertel 3780: =item * &endheadtag()
3781:
3782: Returns a uniform </head> for LON-CAPA web pages.
3783:
3784: Inputs: none
3785:
3786: =back
3787:
3788: =cut
3789:
3790: sub endheadtag {
3791: return '</head>';
3792: }
3793:
3794: =pod
3795:
3796: =over 4
3797:
3798: =item * &head()
3799:
3800: Returns a uniform complete <head>..</head> section for LON-CAPA web pages.
3801:
3802: Inputs: $title - optional title for the page
1.307 albertel 3803: $head_extra - optional extra HTML to put inside the <head>
1.405 albertel 3804:
1.306 albertel 3805: =back
3806:
3807: =cut
3808:
3809: sub head {
1.325 albertel 3810: my ($title,$head_extra,$args) = @_;
3811: return &headtag($title,$head_extra,$args).&endheadtag();
1.306 albertel 3812: }
3813:
3814: =pod
3815:
3816: =over 4
3817:
3818: =item * &start_page()
3819:
3820: Returns a complete <html> .. <body> section for LON-CAPA web pages.
3821:
3822: Inputs: $title - optional title for the page
3823: $head_extra - optional extra HTML to incude inside the <head>
1.315 albertel 3824: $args - additional optional args supported are:
1.317 albertel 3825: only_body -> is true will set &bodytag() onlybodytag
3826: arg on
3827: no_nav_bar -> is true will set &bodytag() notopbar arg on
3828: add_entries -> additional attributes to add to the <body>
3829: domain -> force to color decorate a page for a
3830: specific domain
3831: function -> force usage of a specific rolish color
3832: scheme
3833: redirect -> see &headtag()
3834: bgcolor -> override the default page bg color
3835: js_ready -> return a string ready for being used in
3836: a javascript writeln
1.320 albertel 3837: html_encode -> return a string ready for being used in
3838: a html attribute
1.317 albertel 3839: force_register -> if is true will turn on the &bodytag()
3840: $forcereg arg
1.326 albertel 3841: body_title -> alternate text to use instead of $title
3842: in the title box that appears, this text
3843: is not auto translated like the $title is
1.330 albertel 3844: frameset -> if true will start with a <frameset>
3845: rather than <body>
1.338 albertel 3846: no_title -> if true the title bar won't be shown
3847: skip_phases -> hash ref of
3848: head -> skip the <html><head> generation
3849: body -> skip all <body> generation
1.337 albertel 3850:
1.361 albertel 3851: no_inline_link -> if true and in remote mode, don't show the
3852: 'Switch To Inline Menu' link
3853:
1.306 albertel 3854: =back
3855:
3856: =cut
3857:
3858: sub start_page {
1.309 albertel 3859: my ($title,$head_extra,$args) = @_;
1.318 albertel 3860: #&Apache::lonnet::logthis("start_page ".join(':',caller(0)));
1.313 albertel 3861: my %head_args;
1.352 albertel 3862: foreach my $arg ('redirect','force_register','domain','function',
3863: 'bgcolor') {
1.319 albertel 3864: if (defined($args->{$arg})) {
1.324 raeburn 3865: $head_args{$arg} = $args->{$arg};
1.319 albertel 3866: }
1.313 albertel 3867: }
1.319 albertel 3868:
1.315 albertel 3869: $env{'internal.start_page'}++;
1.338 albertel 3870: my $result;
3871: if (! exists($args->{'skip_phases'}{'head'}) ) {
3872: $result.=
1.341 albertel 3873: &xml_begin().
1.338 albertel 3874: &headtag($title,$head_extra,\%head_args).&endheadtag();
3875: }
3876:
3877: if (! exists($args->{'skip_phases'}{'body'}) ) {
3878: if ($args->{'frameset'}) {
3879: my $attr_string = &make_attr_string($args->{'force_register'},
3880: $args->{'add_entries'});
3881: $result .= "\n<frameset $attr_string>\n";
3882: } else {
3883: $result .=
3884: &bodytag($title,
3885: $args->{'function'}, $args->{'add_entries'},
3886: $args->{'only_body'}, $args->{'domain'},
3887: $args->{'force_register'}, $args->{'body_title'},
3888: $args->{'no_nav_bar'}, $args->{'bgcolor'},
1.361 albertel 3889: $args->{'no_title'}, $args->{'no_inline_link'});
1.338 albertel 3890: }
1.330 albertel 3891: }
1.338 albertel 3892:
1.315 albertel 3893: if ($args->{'js_ready'}) {
1.317 albertel 3894: $result = &js_ready($result);
1.315 albertel 3895: }
1.320 albertel 3896: if ($args->{'html_encode'}) {
3897: $result = &html_encode($result);
3898: }
1.315 albertel 3899: return $result;
1.306 albertel 3900: }
3901:
1.330 albertel 3902:
1.306 albertel 3903: =pod
3904:
3905: =over 4
3906:
3907: =item * &head()
3908:
3909: Returns a complete </body></html> section for LON-CAPA web pages.
3910:
1.315 albertel 3911: Inputs: $args - additional optional args supported are:
3912: js_ready -> return a string ready for being used in
3913: a javascript writeln
1.320 albertel 3914: html_encode -> return a string ready for being used in
3915: a html attribute
1.330 albertel 3916: frameset -> if true will start with a <frameset>
3917: rather than <body>
1.306 albertel 3918:
3919: =cut
3920:
3921: sub end_page {
1.315 albertel 3922: my ($args) = @_;
3923: $env{'internal.end_page'}++;
1.330 albertel 3924: my $result;
1.335 albertel 3925: if ($args->{'discussion'}) {
3926: my ($target,$parser);
3927: if (ref($args->{'discussion'})) {
3928: ($target,$parser) =($args->{'discussion'}{'target'},
3929: $args->{'discussion'}{'parser'});
3930: }
3931: $result .= &Apache::lonxml::xmlend($target,$parser);
3932: }
3933:
1.330 albertel 3934: if ($args->{'frameset'}) {
3935: $result .= '</frameset>';
3936: } else {
3937: $result .= &endbodytag();
3938: }
3939: $result .= "\n</html>";
3940:
1.315 albertel 3941: if ($args->{'js_ready'}) {
1.317 albertel 3942: $result = &js_ready($result);
1.315 albertel 3943: }
1.335 albertel 3944:
1.320 albertel 3945: if ($args->{'html_encode'}) {
3946: $result = &html_encode($result);
3947: }
1.335 albertel 3948:
1.315 albertel 3949: return $result;
3950: }
3951:
1.320 albertel 3952: sub html_encode {
3953: my ($result) = @_;
3954:
1.322 albertel 3955: $result = &HTML::Entities::encode($result,'<>&"');
1.320 albertel 3956:
3957: return $result;
3958: }
1.317 albertel 3959: sub js_ready {
3960: my ($result) = @_;
3961:
1.323 albertel 3962: $result =~ s/[\n\r]/ /xmsg;
3963: $result =~ s/\\/\\\\/xmsg;
3964: $result =~ s/'/\\'/xmsg;
1.372 albertel 3965: $result =~ s{</}{<\\/}xmsg;
1.317 albertel 3966:
3967: return $result;
3968: }
3969:
1.315 albertel 3970: sub validate_page {
3971: if ( exists($env{'internal.start_page'})
1.316 albertel 3972: && $env{'internal.start_page'} > 1) {
3973: &Apache::lonnet::logthis('start_page called multiple times '.
1.318 albertel 3974: $env{'internal.start_page'}.' '.
1.316 albertel 3975: $ENV{'request.filename'});
1.315 albertel 3976: }
3977: if ( exists($env{'internal.end_page'})
1.316 albertel 3978: && $env{'internal.end_page'} > 1) {
3979: &Apache::lonnet::logthis('end_page called multiple times '.
1.318 albertel 3980: $env{'internal.end_page'}.' '.
1.316 albertel 3981: $env{'request.filename'});
1.315 albertel 3982: }
3983: if ( exists($env{'internal.start_page'})
3984: && ! exists($env{'internal.end_page'})) {
1.316 albertel 3985: &Apache::lonnet::logthis('start_page called without end_page '.
3986: $env{'request.filename'});
1.315 albertel 3987: }
3988: if ( ! exists($env{'internal.start_page'})
3989: && exists($env{'internal.end_page'})) {
1.316 albertel 3990: &Apache::lonnet::logthis('end_page called without start_page'.
3991: $env{'request.filename'});
1.315 albertel 3992: }
1.306 albertel 3993: }
1.315 albertel 3994:
1.318 albertel 3995: sub simple_error_page {
3996: my ($r,$title,$msg) = @_;
3997: my $page =
3998: &Apache::loncommon::start_page($title).
3999: &mt($msg).
4000: &Apache::loncommon::end_page();
4001: if (ref($r)) {
4002: $r->print($page);
1.327 albertel 4003: return;
1.318 albertel 4004: }
4005: return $page;
4006: }
1.347 albertel 4007:
4008: {
4009: my $row_count;
4010: sub start_data_table {
1.422 albertel 4011: my ($add_class) = @_;
4012: my $css_class = (join(' ','LC_data_table',$add_class));
1.347 albertel 4013: undef($row_count);
1.422 albertel 4014: return '<table class="'.$css_class.'">'."\n";
1.347 albertel 4015: }
4016:
4017: sub end_data_table {
4018: undef($row_count);
1.389 albertel 4019: return '</table>'."\n";;
1.347 albertel 4020: }
4021:
4022: sub start_data_table_row {
1.422 albertel 4023: my ($add_class) = @_;
1.347 albertel 4024: $row_count++;
1.422 albertel 4025: my $css_class = ($row_count % 2)?'':'LC_even_row';
1.428 albertel 4026: $css_class = (join(' ',$css_class,$add_class));
1.422 albertel 4027: return '<tr class="'.$css_class.'">'."\n";;
1.347 albertel 4028: }
4029:
4030: sub end_data_table_row {
1.389 albertel 4031: return '</tr>'."\n";;
1.347 albertel 4032: }
1.367 www 4033:
1.421 albertel 4034: sub start_data_table_empty_row {
4035: $row_count++;
4036: return '<tr class="LC_empty_row" >'."\n";;
4037: }
4038:
4039: sub end_data_table_empty_row {
4040: return '</tr>'."\n";;
4041: }
4042:
1.367 www 4043: sub start_data_table_header_row {
1.389 albertel 4044: return '<tr class="LC_header_row">'."\n";;
1.367 www 4045: }
4046:
4047: sub end_data_table_header_row {
1.389 albertel 4048: return '</tr>'."\n";;
1.367 www 4049: }
1.347 albertel 4050: }
4051:
1.251 albertel 4052: ###############################################
1.182 matthew 4053:
4054: =pod
4055:
1.405 albertel 4056: =item * &get_users_function()
1.182 matthew 4057:
4058: Used by &bodytag to determine the current users primary role.
4059: Returns either 'student','coordinator','admin', or 'author'.
4060:
4061: =cut
4062:
4063: ###############################################
4064: sub get_users_function {
4065: my $function = 'student';
1.258 albertel 4066: if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
1.182 matthew 4067: $function='coordinator';
4068: }
1.258 albertel 4069: if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
1.182 matthew 4070: $function='admin';
4071: }
1.258 albertel 4072: if (($env{'request.role'}=~/^(au|ca)/) ||
1.182 matthew 4073: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
4074: $function='author';
4075: }
4076: return $function;
1.54 www 4077: }
1.99 www 4078:
4079: ###############################################
4080:
1.233 raeburn 4081: =pod
4082:
1.405 albertel 4083: =item * &check_user_status
1.274 raeburn 4084:
4085: Determines current status of supplied role for a
4086: specific user. Roles can be active, previous or future.
4087:
4088: Inputs:
4089: user's domain, user's username, course's domain,
1.375 raeburn 4090: course's number, optional section ID.
1.274 raeburn 4091:
4092: Outputs:
4093: role status: active, previous or future.
4094:
4095: =cut
4096:
4097: sub check_user_status {
1.412 raeburn 4098: my ($udom,$uname,$cdom,$crs,$role,$sec) = @_;
1.274 raeburn 4099: my %userinfo = &Apache::lonnet::dump('roles',$udom,$uname);
4100: my @uroles = keys %userinfo;
4101: my $srchstr;
4102: my $active_chk = 'none';
1.412 raeburn 4103: my $now = time;
1.274 raeburn 4104: if (@uroles > 0) {
1.412 raeburn 4105: if (($role eq 'cc') || ($sec eq '') || (!defined($sec))) {
1.274 raeburn 4106: $srchstr = '/'.$cdom.'/'.$crs.'_'.$role;
4107: } else {
1.412 raeburn 4108: $srchstr = '/'.$cdom.'/'.$crs.'/'.$sec.'_'.$role;
4109: }
4110: if (grep/^\Q$srchstr\E$/,@uroles) {
1.274 raeburn 4111: my $role_end = 0;
4112: my $role_start = 0;
4113: $active_chk = 'active';
1.412 raeburn 4114: if ($userinfo{$srchstr} =~ m/^\Q$role\E_(\d+)/) {
4115: $role_end = $1;
4116: if ($userinfo{$srchstr} =~ m/^\Q$role\E_\Q$role_end\E_(\d+)$/) {
4117: $role_start = $1;
1.274 raeburn 4118: }
4119: }
4120: if ($role_start > 0) {
1.412 raeburn 4121: if ($now < $role_start) {
1.274 raeburn 4122: $active_chk = 'future';
4123: }
4124: }
4125: if ($role_end > 0) {
1.412 raeburn 4126: if ($now > $role_end) {
1.274 raeburn 4127: $active_chk = 'previous';
4128: }
4129: }
4130: }
4131: }
4132: return $active_chk;
4133: }
4134:
4135: ###############################################
4136:
4137: =pod
4138:
1.405 albertel 4139: =item * &get_sections()
1.233 raeburn 4140:
4141: Determines all the sections for a course including
4142: sections with students and sections containing other roles.
1.419 raeburn 4143: Incoming parameters:
4144:
4145: 1. domain
4146: 2. course number
4147: 3. reference to array containing roles for which sections should
4148: be gathered (optional).
4149: 4. reference to array containing status types for which sections
4150: should be gathered (optional).
4151:
4152: If the third argument is undefined, sections are gathered for any role.
4153: If the fourth argument is undefined, sections are gathered for any status.
4154: Permissible values are 'active' or 'future' or 'previous'.
1.233 raeburn 4155:
1.374 raeburn 4156: Returns section hash (keys are section IDs, values are
4157: number of users in each section), subject to the
1.419 raeburn 4158: optional roles filter, optional status filter
1.233 raeburn 4159:
4160: =cut
4161:
4162: ###############################################
4163: sub get_sections {
1.419 raeburn 4164: my ($cdom,$cnum,$possible_roles,$possible_status) = @_;
1.366 albertel 4165: if (!defined($cdom) || !defined($cnum)) {
4166: my $cid = $env{'request.course.id'};
4167:
4168: return if (!defined($cid));
4169:
4170: $cdom = $env{'course.'.$cid.'.domain'};
4171: $cnum = $env{'course.'.$cid.'.num'};
4172: }
4173:
4174: my %sectioncount;
1.419 raeburn 4175: my $now = time;
1.240 albertel 4176:
1.366 albertel 4177: if (!defined($possible_roles) || (grep(/^st$/,@$possible_roles))) {
1.276 albertel 4178: my ($classlist) = &Apache::loncoursedata::get_classlist($cdom,$cnum);
1.240 albertel 4179: my $sec_index = &Apache::loncoursedata::CL_SECTION();
4180: my $status_index = &Apache::loncoursedata::CL_STATUS();
1.419 raeburn 4181: my $start_index = &Apache::loncoursedata::CL_START();
4182: my $end_index = &Apache::loncoursedata::CL_END();
4183: my $status;
1.366 albertel 4184: while (my ($student,$data) = each(%$classlist)) {
1.419 raeburn 4185: my ($section,$stu_status,$start,$end) = ($data->[$sec_index],
4186: $data->[$status_index],
4187: $data->[$start_index],
4188: $data->[$end_index]);
4189: if ($stu_status eq 'Active') {
4190: $status = 'active';
4191: } elsif ($end < $now) {
4192: $status = 'previous';
4193: } elsif ($start > $now) {
4194: $status = 'future';
4195: }
4196: if ($section ne '-1' && $section !~ /^\s*$/) {
4197: if ((!defined($possible_status)) || (($status ne '') &&
4198: (grep/^\Q$status\E$/,@{$possible_status}))) {
4199: $sectioncount{$section}++;
4200: }
1.240 albertel 4201: }
4202: }
4203: }
4204: my %courseroles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
4205: foreach my $user (sort(keys(%courseroles))) {
4206: if ($user !~ /^(\w{2})/) { next; }
4207: my ($role) = ($user =~ /^(\w{2})/);
4208: if ($possible_roles && !(grep(/^$role$/,@$possible_roles))) { next; }
1.419 raeburn 4209: my ($section,$status);
1.240 albertel 4210: if ($role eq 'cr' &&
4211: $user =~ m-^$role/[^/]*/[^/]*/[^/]*:[^:]*:[^:]*:(\w+)-) {
4212: $section=$1;
4213: }
4214: if ($user =~ /^$role:[^:]*:[^:]*:(\w+)/) { $section=$1; }
4215: if (!defined($section) || $section eq '-1') { next; }
1.419 raeburn 4216: my ($end,$start) = ($courseroles{$user} =~ /^([^:]*):([^:]*)$/);
4217: if ($end == -1 && $start == -1) {
4218: next; #deleted role
4219: }
4220: if (!defined($possible_status)) {
4221: $sectioncount{$section}++;
4222: } else {
4223: if ((!$end || $end >= $now) && (!$start || $start <= $now)) {
4224: $status = 'active';
4225: } elsif ($end < $now) {
4226: $status = 'future';
4227: } elsif ($start > $now) {
4228: $status = 'previous';
4229: }
4230: if (($status ne '') && (grep/^\Q$status\E$/,@{$possible_status})) {
4231: $sectioncount{$section}++;
4232: }
4233: }
1.233 raeburn 4234: }
1.366 albertel 4235: return %sectioncount;
1.233 raeburn 4236: }
4237:
1.274 raeburn 4238: ###############################################
1.294 raeburn 4239:
4240: =pod
1.405 albertel 4241:
4242: =item * &get_course_users()
4243:
1.275 raeburn 4244: Retrieves usernames:domains for users in the specified course
4245: with specific role(s), and access status.
4246:
4247: Incoming parameters:
1.277 albertel 4248: 1. course domain
4249: 2. course number
4250: 3. access status: users must have - either active,
1.275 raeburn 4251: previous, future, or all.
1.277 albertel 4252: 4. reference to array of permissible roles
1.288 raeburn 4253: 5. reference to array of section restrictions (optional)
4254: 6. reference to results object (hash of hashes).
4255: 7. reference to optional userdata hash
1.275 raeburn 4256: Keys of top level hash are roles.
4257: Keys of inner hashes are username:domain, with
4258: values set to access type.
1.288 raeburn 4259: Optional userdata hash returns an array with arguments in the
4260: same order as loncoursedata::get_classlist() for student data.
4261:
4262: Entries for end, start, section and status are blank because
4263: of the possibility of multiple values for non-student roles.
4264:
1.275 raeburn 4265: =cut
1.405 albertel 4266:
1.275 raeburn 4267: ###############################################
1.405 albertel 4268:
1.275 raeburn 4269: sub get_course_users {
1.288 raeburn 4270: my ($cdom,$cnum,$types,$roles,$sections,$users,$userdata) = @_;
4271: my %idx = ();
1.419 raeburn 4272: my %seclists;
1.288 raeburn 4273:
4274: $idx{udom} = &Apache::loncoursedata::CL_SDOM();
4275: $idx{uname} = &Apache::loncoursedata::CL_SNAME();
4276: $idx{end} = &Apache::loncoursedata::CL_END();
4277: $idx{start} = &Apache::loncoursedata::CL_START();
4278: $idx{id} = &Apache::loncoursedata::CL_ID();
4279: $idx{section} = &Apache::loncoursedata::CL_SECTION();
4280: $idx{fullname} = &Apache::loncoursedata::CL_FULLNAME();
4281: $idx{status} = &Apache::loncoursedata::CL_STATUS();
4282:
1.290 albertel 4283: if (grep(/^st$/,@{$roles})) {
1.276 albertel 4284: my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist($cdom,$cnum);
1.278 raeburn 4285: my $now = time;
1.277 albertel 4286: foreach my $student (keys(%{$classlist})) {
1.288 raeburn 4287: my $match = 0;
1.412 raeburn 4288: my $secmatch = 0;
1.419 raeburn 4289: my $section = $$classlist{$student}[$idx{section}];
4290: if ($section eq '') {
4291: $section = 'none';
4292: }
1.291 albertel 4293: if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
1.420 albertel 4294: if (grep(/^all$/,@{$sections})) {
1.412 raeburn 4295: $secmatch = 1;
4296: } elsif ($$classlist{$student}[$idx{section}] eq '') {
1.420 albertel 4297: if (grep(/^none$/,@{$sections})) {
1.412 raeburn 4298: $secmatch = 1;
4299: }
4300: } else {
1.419 raeburn 4301: if (grep(/^\Q$section\E$/,@{$sections})) {
1.412 raeburn 4302: $secmatch = 1;
4303: }
1.290 albertel 4304: }
1.412 raeburn 4305: if (!$secmatch) {
4306: next;
4307: }
1.419 raeburn 4308: }
1.420 albertel 4309: push(@{$seclists{$student}},$section);
1.275 raeburn 4310: if (defined($$types{'active'})) {
1.288 raeburn 4311: if ($$classlist{$student}[$idx{status}] eq 'Active') {
1.275 raeburn 4312: push(@{$$users{st}{$student}},'active');
1.288 raeburn 4313: $match = 1;
1.275 raeburn 4314: }
4315: }
4316: if (defined($$types{'previous'})) {
1.288 raeburn 4317: if ($$classlist{$student}[$idx{end}] <= $now) {
1.275 raeburn 4318: push(@{$$users{st}{$student}},'previous');
1.288 raeburn 4319: $match = 1;
1.275 raeburn 4320: }
4321: }
4322: if (defined($$types{'future'})) {
1.288 raeburn 4323: if (($$classlist{$student}[$idx{start}] > $now) && ($$classlist{$student}[$idx{end}] > $now) || ($$classlist{$student}[$idx{end}] == 0) || ($$classlist{$student}[$idx{end}] eq '')) {
1.275 raeburn 4324: push(@{$$users{st}{$student}},'future');
1.288 raeburn 4325: $match = 1;
1.275 raeburn 4326: }
4327: }
1.412 raeburn 4328: if ($match && ref($userdata) eq 'HASH') {
1.288 raeburn 4329: $$userdata{$student} = $$classlist{$student};
4330: }
1.275 raeburn 4331: }
4332: }
1.412 raeburn 4333: if ((@{$roles} > 1) || ((@{$roles} == 1) && ($$roles[0] ne "st"))) {
1.275 raeburn 4334: my @coursepersonnel = &Apache::lonnet::getkeys('nohist_userroles',$cdom,$cnum);
4335: foreach my $person (@coursepersonnel) {
1.288 raeburn 4336: my $match = 0;
1.412 raeburn 4337: my $secmatch = 0;
4338: my ($role,$user,$usec) = ($person =~ /^([^:]*):([^:]+:[^:]+):([^:]*)/);
1.275 raeburn 4339: $user =~ s/:$//;
1.290 albertel 4340: if (($role) && (grep(/^\Q$role\E$/,@{$roles}))) {
1.412 raeburn 4341: my ($uname,$udom) = split(/:/,$user);
4342: if ((ref($sections) eq 'ARRAY') && (@{$sections} > 0)) {
1.420 albertel 4343: if (grep(/^all$/,@{$sections})) {
1.412 raeburn 4344: $secmatch = 1;
4345: } elsif ($usec eq '') {
1.420 albertel 4346: if (grep(/^none$/,@{$sections})) {
1.412 raeburn 4347: $secmatch = 1;
4348: }
4349: } else {
4350: if (grep(/^\Q$usec\E$/,@{$sections})) {
4351: $secmatch = 1;
4352: }
4353: }
4354: if (!$secmatch) {
4355: next;
4356: }
1.288 raeburn 4357: }
1.419 raeburn 4358: if ($usec eq '') {
4359: $usec = 'none';
4360: }
1.275 raeburn 4361: if ($uname ne '' && $udom ne '') {
1.412 raeburn 4362: my $status = &check_user_status($udom,$uname,$cdom,$cnum,$role,
4363: $usec);
1.277 albertel 4364: foreach my $type (keys(%{$types})) {
1.275 raeburn 4365: if ($status eq $type) {
1.420 albertel 4366: if (!grep(/^\Q$type\E$/,@{$$users{$role}{$user}})) {
1.419 raeburn 4367: push(@{$$users{$role}{$user}},$type);
4368: }
1.288 raeburn 4369: $match = 1;
4370: }
4371: }
1.419 raeburn 4372: if (($match) && (ref($userdata) eq 'HASH')) {
4373: if (!exists($$userdata{$uname.':'.$udom})) {
4374: &get_user_info($udom,$uname,\%idx,$userdata);
4375: }
1.420 albertel 4376: if (!grep(/^\Q$usec\E$/,@{$seclists{$uname.':'.$udom}})) {
1.419 raeburn 4377: push(@{$seclists{$uname.':'.$udom}},$usec);
4378: }
1.275 raeburn 4379: }
4380: }
4381: }
4382: }
1.290 albertel 4383: if (grep(/^ow$/,@{$roles})) {
1.279 raeburn 4384: if ((defined($cdom)) && (defined($cnum))) {
4385: my %csettings = &Apache::lonnet::get('environment',['internal.courseowner'],$cdom,$cnum);
4386: if ( defined($csettings{'internal.courseowner'}) ) {
4387: my $owner = $csettings{'internal.courseowner'};
1.288 raeburn 4388: @{$$users{'ow'}{$owner.':'.$cdom}} = 'any';
1.290 albertel 4389: if (defined($userdata) &&
4390: !exists($$userdata{$owner.':'.$cdom})) {
4391: &get_user_info($cdom,$owner,\%idx,$userdata);
1.420 albertel 4392: if (!grep(/^none$/,@{$seclists{$owner.':'.$cdom}})) {
1.419 raeburn 4393: push(@{$seclists{$owner.':'.$cdom}},'none');
4394: }
1.290 albertel 4395: }
1.279 raeburn 4396: }
4397: }
4398: }
1.419 raeburn 4399: foreach my $user (keys(%seclists)) {
4400: @{$seclists{$user}} = (sort {$a <=> $b} @{$seclists{$user}});
4401: $$userdata{$user}[$idx{section}] = join(',',@{$seclists{$user}});
4402: }
1.275 raeburn 4403: }
4404: return;
4405: }
4406:
1.288 raeburn 4407: sub get_user_info {
4408: my ($udom,$uname,$idx,$userdata) = @_;
1.289 albertel 4409: $$userdata{$uname.':'.$udom}[$$idx{fullname}] =
4410: &plainname($uname,$udom,'lastname');
1.291 albertel 4411: $$userdata{$uname.':'.$udom}[$$idx{uname}] = $uname;
1.297 raeburn 4412: $$userdata{$uname.':'.$udom}[$$idx{udom}] = $udom;
1.288 raeburn 4413: return;
4414: }
1.275 raeburn 4415:
1.384 raeburn 4416: sub get_secgrprole_info {
4417: my ($cdom,$cnum,$needroles,$type) = @_;
4418: my %sections_count = &get_sections($cdom,$cnum);
4419: my @sections = (sort {$a <=> $b} keys(%sections_count));
4420: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
4421: my @groups = sort(keys(%curr_groups));
4422: my $allroles = [];
4423: my $rolehash;
4424: my $accesshash = {
4425: active => 'Currently has access',
4426: future => 'Will have future access',
4427: previous => 'Previously had access',
4428: };
4429: if ($needroles) {
4430: $rolehash = {'all' => 'all'};
1.385 albertel 4431: my %user_roles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
4432: if (&Apache::lonnet::error(%user_roles)) {
4433: undef(%user_roles);
4434: }
4435: foreach my $item (keys(%user_roles)) {
1.384 raeburn 4436: my ($role)=split(/\:/,$item,2);
4437: if ($role eq 'cr') { next; }
4438: if ($role =~ /^cr/) {
4439: $$rolehash{$role} = (split('/',$role))[3];
4440: } else {
4441: $$rolehash{$role} = &Apache::lonnet::plaintext($role,$type);
4442: }
4443: }
4444: foreach my $key (sort(keys(%{$rolehash}))) {
4445: push(@{$allroles},$key);
4446: }
4447: push (@{$allroles},'st');
4448: $$rolehash{'st'} = &Apache::lonnet::plaintext('st',$type);
4449: }
4450: return (\@sections,\@groups,$allroles,$rolehash,$accesshash);
4451: }
4452:
1.112 bowersj2 4453: =pod
4454:
4455: =item * get_unprocessed_cgi($query,$possible_names)
4456:
1.258 albertel 4457: Modify the %env hash to contain unprocessed CGI form parameters held in
1.112 bowersj2 4458: $query. The parameters listed in $possible_names (an array reference),
1.258 albertel 4459: will be set in $env{'form.name'} if they do not already exist.
1.112 bowersj2 4460:
4461: Typically called with $ENV{'QUERY_STRING'} as the first parameter.
4462: $possible_names is an ref to an array of form element names. As an example:
4463: get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);
1.258 albertel 4464: will result in $env{'form.uname'} and $env{'form.udom'} being set.
1.112 bowersj2 4465:
4466: =cut
1.1 albertel 4467:
1.6 albertel 4468: sub get_unprocessed_cgi {
1.25 albertel 4469: my ($query,$possible_names)= @_;
1.26 matthew 4470: # $Apache::lonxml::debug=1;
1.356 albertel 4471: foreach my $pair (split(/&/,$query)) {
4472: my ($name, $value) = split(/=/,$pair);
1.369 www 4473: $name = &unescape($name);
1.25 albertel 4474: if (!defined($possible_names) || (grep {$_ eq $name} @$possible_names)) {
4475: $value =~ tr/+/ /;
4476: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.258 albertel 4477: unless (defined($env{'form.'.$name})) { &add_to_env('form.'.$name,$value) };
1.25 albertel 4478: }
1.16 harris41 4479: }
1.6 albertel 4480: }
4481:
1.112 bowersj2 4482: =pod
4483:
4484: =item * cacheheader()
4485:
4486: returns cache-controlling header code
4487:
4488: =cut
4489:
1.7 albertel 4490: sub cacheheader {
1.258 albertel 4491: unless ($env{'request.method'} eq 'GET') { return ''; }
1.216 albertel 4492: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
4493: my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
1.7 albertel 4494: <meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />
4495: <meta HTTP-EQUIV="Pragma" CONTENT="no-cache" />';
1.216 albertel 4496: return $output;
1.7 albertel 4497: }
4498:
1.112 bowersj2 4499: =pod
4500:
4501: =item * no_cache($r)
4502:
4503: specifies header code to not have cache
4504:
4505: =cut
4506:
1.9 albertel 4507: sub no_cache {
1.216 albertel 4508: my ($r) = @_;
4509: if ($ENV{'REQUEST_METHOD'} ne 'GET' &&
1.258 albertel 4510: $env{'request.method'} ne 'GET') { return ''; }
1.216 albertel 4511: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime(time));
4512: $r->no_cache(1);
4513: $r->header_out("Expires" => $date);
4514: $r->header_out("Pragma" => "no-cache");
1.123 www 4515: }
4516:
4517: sub content_type {
1.181 albertel 4518: my ($r,$type,$charset) = @_;
1.299 foxr 4519: if ($r) {
4520: # Note that printout.pl calls this with undef for $r.
4521: &no_cache($r);
4522: }
1.258 albertel 4523: if ($env{'browser.mathml'} && $type eq 'text/html') { $type='text/xml'; }
1.181 albertel 4524: unless ($charset) {
4525: $charset=&Apache::lonlocal::current_encoding;
4526: }
4527: if ($charset) { $type.='; charset='.$charset; }
4528: if ($r) {
4529: $r->content_type($type);
4530: } else {
4531: print("Content-type: $type\n\n");
4532: }
1.9 albertel 4533: }
1.25 albertel 4534:
1.112 bowersj2 4535: =pod
4536:
4537: =item * add_to_env($name,$value)
4538:
1.258 albertel 4539: adds $name to the %env hash with value
1.112 bowersj2 4540: $value, if $name already exists, the entry is converted to an array
4541: reference and $value is added to the array.
4542:
4543: =cut
4544:
1.25 albertel 4545: sub add_to_env {
4546: my ($name,$value)=@_;
1.258 albertel 4547: if (defined($env{$name})) {
4548: if (ref($env{$name})) {
1.25 albertel 4549: #already have multiple values
1.258 albertel 4550: push(@{ $env{$name} },$value);
1.25 albertel 4551: } else {
4552: #first time seeing multiple values, convert hash entry to an arrayref
1.258 albertel 4553: my $first=$env{$name};
4554: undef($env{$name});
4555: push(@{ $env{$name} },$first,$value);
1.25 albertel 4556: }
4557: } else {
1.258 albertel 4558: $env{$name}=$value;
1.25 albertel 4559: }
1.31 albertel 4560: }
1.149 albertel 4561:
4562: =pod
4563:
4564: =item * get_env_multiple($name)
4565:
1.258 albertel 4566: gets $name from the %env hash, it seemlessly handles the cases where multiple
1.149 albertel 4567: values may be defined and end up as an array ref.
4568:
4569: returns an array of values
4570:
4571: =cut
4572:
4573: sub get_env_multiple {
4574: my ($name) = @_;
4575: my @values;
1.258 albertel 4576: if (defined($env{$name})) {
1.149 albertel 4577: # exists is it an array
1.258 albertel 4578: if (ref($env{$name})) {
4579: @values=@{ $env{$name} };
1.149 albertel 4580: } else {
1.258 albertel 4581: $values[0]=$env{$name};
1.149 albertel 4582: }
4583: }
4584: return(@values);
4585: }
4586:
1.31 albertel 4587:
1.41 ng 4588: =pod
1.45 matthew 4589:
4590: =back
1.41 ng 4591:
1.112 bowersj2 4592: =head1 CSV Upload/Handling functions
1.38 albertel 4593:
1.41 ng 4594: =over 4
4595:
1.112 bowersj2 4596: =item * upfile_store($r)
1.41 ng 4597:
4598: Store uploaded file, $r should be the HTTP Request object,
1.258 albertel 4599: needs $env{'form.upfile'}
1.41 ng 4600: returns $datatoken to be put into hidden field
4601:
4602: =cut
1.31 albertel 4603:
4604: sub upfile_store {
4605: my $r=shift;
1.258 albertel 4606: $env{'form.upfile'}=~s/\r/\n/gs;
4607: $env{'form.upfile'}=~s/\f/\n/gs;
4608: $env{'form.upfile'}=~s/\n+/\n/gs;
4609: $env{'form.upfile'}=~s/\n+$//gs;
1.31 albertel 4610:
1.258 albertel 4611: my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
4612: '_enroll_'.$env{'request.course.id'}.'_'.time.'_'.$$;
1.31 albertel 4613: {
1.158 raeburn 4614: my $datafile = $r->dir_config('lonDaemons').
4615: '/tmp/'.$datatoken.'.tmp';
4616: if ( open(my $fh,">$datafile") ) {
1.258 albertel 4617: print $fh $env{'form.upfile'};
1.158 raeburn 4618: close($fh);
4619: }
1.31 albertel 4620: }
4621: return $datatoken;
4622: }
4623:
1.56 matthew 4624: =pod
4625:
1.112 bowersj2 4626: =item * load_tmp_file($r)
1.41 ng 4627:
4628: Load uploaded file from tmp, $r should be the HTTP Request object,
1.258 albertel 4629: needs $env{'form.datatoken'},
4630: sets $env{'form.upfile'} to the contents of the file
1.41 ng 4631:
4632: =cut
1.31 albertel 4633:
4634: sub load_tmp_file {
4635: my $r=shift;
4636: my @studentdata=();
4637: {
1.158 raeburn 4638: my $studentfile = $r->dir_config('lonDaemons').
1.258 albertel 4639: '/tmp/'.$env{'form.datatoken'}.'.tmp';
1.158 raeburn 4640: if ( open(my $fh,"<$studentfile") ) {
4641: @studentdata=<$fh>;
4642: close($fh);
4643: }
1.31 albertel 4644: }
1.258 albertel 4645: $env{'form.upfile'}=join('',@studentdata);
1.31 albertel 4646: }
4647:
1.56 matthew 4648: =pod
4649:
1.112 bowersj2 4650: =item * upfile_record_sep()
1.41 ng 4651:
4652: Separate uploaded file into records
4653: returns array of records,
1.258 albertel 4654: needs $env{'form.upfile'} and $env{'form.upfiletype'}
1.41 ng 4655:
4656: =cut
1.31 albertel 4657:
4658: sub upfile_record_sep {
1.258 albertel 4659: if ($env{'form.upfiletype'} eq 'xml') {
1.31 albertel 4660: } else {
1.248 albertel 4661: my @records;
1.258 albertel 4662: foreach my $line (split(/\n/,$env{'form.upfile'})) {
1.248 albertel 4663: if ($line=~/^\s*$/) { next; }
4664: push(@records,$line);
4665: }
4666: return @records;
1.31 albertel 4667: }
4668: }
4669:
1.56 matthew 4670: =pod
4671:
1.112 bowersj2 4672: =item * record_sep($record)
1.41 ng 4673:
1.258 albertel 4674: Separate a record into fields $record should be an item from the upfile_record_sep(), needs $env{'form.upfiletype'}
1.41 ng 4675:
4676: =cut
4677:
1.263 www 4678: sub takeleft {
4679: my $index=shift;
4680: return substr('0000'.$index,-4,4);
4681: }
4682:
1.31 albertel 4683: sub record_sep {
4684: my $record=shift;
4685: my %components=();
1.258 albertel 4686: if ($env{'form.upfiletype'} eq 'xml') {
4687: } elsif ($env{'form.upfiletype'} eq 'space') {
1.31 albertel 4688: my $i=0;
1.356 albertel 4689: foreach my $field (split(/\s+/,$record)) {
1.31 albertel 4690: $field=~s/^(\"|\')//;
4691: $field=~s/(\"|\')$//;
1.263 www 4692: $components{&takeleft($i)}=$field;
1.31 albertel 4693: $i++;
4694: }
1.258 albertel 4695: } elsif ($env{'form.upfiletype'} eq 'tab') {
1.31 albertel 4696: my $i=0;
1.356 albertel 4697: foreach my $field (split(/\t/,$record)) {
1.31 albertel 4698: $field=~s/^(\"|\')//;
4699: $field=~s/(\"|\')$//;
1.263 www 4700: $components{&takeleft($i)}=$field;
1.31 albertel 4701: $i++;
4702: }
4703: } else {
4704: my @allfields=split(/\,/,$record);
4705: my $i=0;
4706: my $j;
4707: for ($j=0;$j<=$#allfields;$j++) {
4708: my $field=$allfields[$j];
4709: if ($field=~/^\s*(\"|\')/) {
4710: my $delimiter=$1;
4711: while (($field!~/$delimiter$/) && ($j<$#allfields)) {
4712: $j++;
4713: $field.=','.$allfields[$j];
4714: }
4715: $field=~s/^\s*$delimiter//;
4716: $field=~s/$delimiter\s*$//;
4717: }
1.263 www 4718: $components{&takeleft($i)}=$field;
1.31 albertel 4719: $i++;
4720: }
4721: }
4722: return %components;
4723: }
4724:
1.144 matthew 4725: ######################################################
4726: ######################################################
4727:
1.56 matthew 4728: =pod
4729:
1.112 bowersj2 4730: =item * upfile_select_html()
1.41 ng 4731:
1.144 matthew 4732: Return HTML code to select a file from the users machine and specify
4733: the file type.
1.41 ng 4734:
4735: =cut
4736:
1.144 matthew 4737: ######################################################
4738: ######################################################
1.31 albertel 4739: sub upfile_select_html {
1.144 matthew 4740: my %Types = (
4741: csv => &mt('CSV (comma separated values, spreadsheet)'),
4742: space => &mt('Space separated'),
4743: tab => &mt('Tabulator separated'),
4744: # xml => &mt('HTML/XML'),
4745: );
4746: my $Str = '<input type="file" name="upfile" size="50" />'.
4747: '<br />Type: <select name="upfiletype">';
4748: foreach my $type (sort(keys(%Types))) {
4749: $Str .= '<option value="'.$type.'" >'.$Types{$type}."</option>\n";
4750: }
4751: $Str .= "</select>\n";
4752: return $Str;
1.31 albertel 4753: }
4754:
1.301 albertel 4755: sub get_samples {
4756: my ($records,$toget) = @_;
4757: my @samples=({});
4758: my $got=0;
4759: foreach my $rec (@$records) {
4760: my %temp = &record_sep($rec);
4761: if (! grep(/\S/, values(%temp))) { next; }
4762: if (%temp) {
4763: $samples[$got]=\%temp;
4764: $got++;
4765: if ($got == $toget) { last; }
4766: }
4767: }
4768: return \@samples;
4769: }
4770:
1.144 matthew 4771: ######################################################
4772: ######################################################
4773:
1.56 matthew 4774: =pod
4775:
1.112 bowersj2 4776: =item * csv_print_samples($r,$records)
1.41 ng 4777:
4778: Prints a table of sample values from each column uploaded $r is an
4779: Apache Request ref, $records is an arrayref from
4780: &Apache::loncommon::upfile_record_sep
4781:
4782: =cut
4783:
1.144 matthew 4784: ######################################################
4785: ######################################################
1.31 albertel 4786: sub csv_print_samples {
4787: my ($r,$records) = @_;
1.301 albertel 4788: my $samples = &get_samples($records,3);
4789:
1.144 matthew 4790: $r->print(&mt('Samples').'<br /><table border="2"><tr>');
1.356 albertel 4791: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
4792: $r->print('<th>'.&mt('Column [_1]',($sample+1)).'</th>'); }
1.31 albertel 4793: $r->print('</tr>');
1.301 albertel 4794: foreach my $hash (@$samples) {
1.31 albertel 4795: $r->print('<tr>');
1.356 albertel 4796: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
1.31 albertel 4797: $r->print('<td>');
1.356 albertel 4798: if (defined($$hash{$sample})) { $r->print($$hash{$sample}); }
1.31 albertel 4799: $r->print('</td>');
4800: }
4801: $r->print('</tr>');
4802: }
4803: $r->print('</tr></table><br />'."\n");
4804: }
4805:
1.144 matthew 4806: ######################################################
4807: ######################################################
4808:
1.56 matthew 4809: =pod
4810:
1.112 bowersj2 4811: =item * csv_print_select_table($r,$records,$d)
1.41 ng 4812:
4813: Prints a table to create associations between values and table columns.
1.144 matthew 4814:
1.41 ng 4815: $r is an Apache Request ref,
4816: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
1.174 matthew 4817: $d is an array of 2 element arrays (internal name, displayed name,defaultcol)
1.41 ng 4818:
4819: =cut
4820:
1.144 matthew 4821: ######################################################
4822: ######################################################
1.31 albertel 4823: sub csv_print_select_table {
4824: my ($r,$records,$d) = @_;
1.301 albertel 4825: my $i=0;
4826: my $samples = &get_samples($records,1);
1.144 matthew 4827: $r->print(&mt('Associate columns with student attributes.')."\n".
4828: '<table border="2"><tr>'.
4829: '<th>'.&mt('Attribute').'</th>'.
4830: '<th>'.&mt('Column').'</th></tr>'."\n");
1.356 albertel 4831: foreach my $array_ref (@$d) {
4832: my ($value,$display,$defaultcol)=@{ $array_ref };
1.31 albertel 4833: $r->print('<tr><td>'.$display.'</td>');
4834:
4835: $r->print('<td><select name=f'.$i.
1.32 matthew 4836: ' onchange="javascript:flip(this.form,'.$i.');">');
1.31 albertel 4837: $r->print('<option value="none"></option>');
1.356 albertel 4838: foreach my $sample (sort({$a <=> $b} keys(%{ $samples->[0] }))) {
4839: $r->print('<option value="'.$sample.'"'.
4840: ($sample eq $defaultcol ? ' selected="selected" ' : '').
4841: '>Column '.($sample+1).'</option>');
1.31 albertel 4842: }
4843: $r->print('</select></td></tr>'."\n");
4844: $i++;
4845: }
4846: $i--;
4847: return $i;
4848: }
1.56 matthew 4849:
1.144 matthew 4850: ######################################################
4851: ######################################################
4852:
1.56 matthew 4853: =pod
1.31 albertel 4854:
1.112 bowersj2 4855: =item * csv_samples_select_table($r,$records,$d)
1.41 ng 4856:
4857: Prints a table of sample values from the upload and can make associate samples to internal names.
4858:
4859: $r is an Apache Request ref,
4860: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
4861: $d is an array of 2 element arrays (internal name, displayed name)
4862:
4863: =cut
4864:
1.144 matthew 4865: ######################################################
4866: ######################################################
1.31 albertel 4867: sub csv_samples_select_table {
4868: my ($r,$records,$d) = @_;
4869: my $i=0;
1.144 matthew 4870: #
1.301 albertel 4871: my $samples = &get_samples($records,3);
1.144 matthew 4872: $r->print('<table border=2><tr><th>'.
4873: &mt('Field').'</th><th>'.&mt('Samples').'</th></tr>');
1.301 albertel 4874:
4875: foreach my $key (sort(keys(%{ $samples->[0] }))) {
1.144 matthew 4876: $r->print('<tr><td><select name="f'.$i.'"'.
1.32 matthew 4877: ' onchange="javascript:flip(this.form,'.$i.');">');
1.301 albertel 4878: foreach my $option (@$d) {
4879: my ($value,$display,$defaultcol)=@{ $option };
1.174 matthew 4880: $r->print('<option value="'.$value.'"'.
1.253 albertel 4881: ($i eq $defaultcol ? ' selected="selected" ':'').'>'.
1.174 matthew 4882: $display.'</option>');
1.31 albertel 4883: }
4884: $r->print('</select></td><td>');
1.301 albertel 4885: foreach my $line (0..2) {
4886: if (defined($samples->[$line]{$key})) {
4887: $r->print($samples->[$line]{$key}."<br />\n");
4888: }
4889: }
1.31 albertel 4890: $r->print('</td></tr>');
4891: $i++;
4892: }
4893: $i--;
4894: return($i);
1.115 matthew 4895: }
4896:
1.144 matthew 4897: ######################################################
4898: ######################################################
4899:
1.115 matthew 4900: =pod
4901:
4902: =item clean_excel_name($name)
4903:
4904: Returns a replacement for $name which does not contain any illegal characters.
4905:
4906: =cut
4907:
1.144 matthew 4908: ######################################################
4909: ######################################################
1.115 matthew 4910: sub clean_excel_name {
4911: my ($name) = @_;
4912: $name =~ s/[:\*\?\/\\]//g;
4913: if (length($name) > 31) {
4914: $name = substr($name,0,31);
4915: }
4916: return $name;
1.25 albertel 4917: }
1.84 albertel 4918:
1.85 albertel 4919: =pod
4920:
1.112 bowersj2 4921: =item * check_if_partid_hidden($id,$symb,$udom,$uname)
1.85 albertel 4922:
4923: Returns either 1 or undef
4924:
4925: 1 if the part is to be hidden, undef if it is to be shown
4926:
4927: Arguments are:
4928:
4929: $id the id of the part to be checked
4930: $symb, optional the symb of the resource to check
4931: $udom, optional the domain of the user to check for
4932: $uname, optional the username of the user to check for
4933:
4934: =cut
1.84 albertel 4935:
4936: sub check_if_partid_hidden {
4937: my ($id,$symb,$udom,$uname) = @_;
1.133 albertel 4938: my $hiddenparts=&Apache::lonnet::EXT('resource.0.hiddenparts',
1.84 albertel 4939: $symb,$udom,$uname);
1.141 albertel 4940: my $truth=1;
4941: #if the string starts with !, then the list is the list to show not hide
4942: if ($hiddenparts=~s/^\s*!//) { $truth=undef; }
1.84 albertel 4943: my @hiddenlist=split(/,/,$hiddenparts);
4944: foreach my $checkid (@hiddenlist) {
1.141 albertel 4945: if ($checkid =~ /^\s*\Q$id\E\s*$/) { return $truth; }
1.84 albertel 4946: }
1.141 albertel 4947: return !$truth;
1.84 albertel 4948: }
1.127 matthew 4949:
1.138 matthew 4950:
4951: ############################################################
4952: ############################################################
4953:
4954: =pod
4955:
1.157 matthew 4956: =back
4957:
1.138 matthew 4958: =head1 cgi-bin script and graphing routines
4959:
1.157 matthew 4960: =over 4
4961:
1.138 matthew 4962: =item get_cgi_id
4963:
4964: Inputs: none
4965:
4966: Returns an id which can be used to pass environment variables
4967: to various cgi-bin scripts. These environment variables will
4968: be removed from the users environment after a given time by
4969: the routine &Apache::lonnet::transfer_profile_to_env.
4970:
4971: =cut
4972:
4973: ############################################################
4974: ############################################################
1.152 albertel 4975: my $uniq=0;
1.136 matthew 4976: sub get_cgi_id {
1.154 albertel 4977: $uniq=($uniq+1)%100000;
1.280 albertel 4978: return (time.'_'.$$.'_'.$uniq);
1.136 matthew 4979: }
4980:
1.127 matthew 4981: ############################################################
4982: ############################################################
4983:
4984: =pod
4985:
1.134 matthew 4986: =item DrawBarGraph
1.127 matthew 4987:
1.138 matthew 4988: Facilitates the plotting of data in a (stacked) bar graph.
4989: Puts plot definition data into the users environment in order for
4990: graph.png to plot it. Returns an <img> tag for the plot.
4991: The bars on the plot are labeled '1','2',...,'n'.
4992:
4993: Inputs:
4994:
4995: =over 4
4996:
4997: =item $Title: string, the title of the plot
4998:
4999: =item $xlabel: string, text describing the X-axis of the plot
5000:
5001: =item $ylabel: string, text describing the Y-axis of the plot
5002:
5003: =item $Max: scalar, the maximum Y value to use in the plot
5004: If $Max is < any data point, the graph will not be rendered.
5005:
1.140 matthew 5006: =item $colors: array ref holding the colors to be used for the data sets when
1.138 matthew 5007: they are plotted. If undefined, default values will be used.
5008:
1.178 matthew 5009: =item $labels: array ref holding the labels to use on the x-axis for the bars.
5010:
1.138 matthew 5011: =item @Values: An array of array references. Each array reference holds data
5012: to be plotted in a stacked bar chart.
5013:
1.239 matthew 5014: =item If the final element of @Values is a hash reference the key/value
5015: pairs will be added to the graph definition.
5016:
1.138 matthew 5017: =back
5018:
5019: Returns:
5020:
5021: An <img> tag which references graph.png and the appropriate identifying
5022: information for the plot.
5023:
1.127 matthew 5024: =cut
5025:
5026: ############################################################
5027: ############################################################
1.134 matthew 5028: sub DrawBarGraph {
1.178 matthew 5029: my ($Title,$xlabel,$ylabel,$Max,$colors,$labels,@Values)=@_;
1.134 matthew 5030: #
5031: if (! defined($colors)) {
5032: $colors = ['#33ff00',
5033: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
5034: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
5035: ];
5036: }
1.228 matthew 5037: my $extra_settings = {};
5038: if (ref($Values[-1]) eq 'HASH') {
5039: $extra_settings = pop(@Values);
5040: }
1.127 matthew 5041: #
1.136 matthew 5042: my $identifier = &get_cgi_id();
5043: my $id = 'cgi.'.$identifier;
1.129 matthew 5044: if (! @Values || ref($Values[0]) ne 'ARRAY') {
1.127 matthew 5045: return '';
5046: }
1.225 matthew 5047: #
5048: my @Labels;
5049: if (defined($labels)) {
5050: @Labels = @$labels;
5051: } else {
5052: for (my $i=0;$i<@{$Values[0]};$i++) {
5053: push (@Labels,$i+1);
5054: }
5055: }
5056: #
1.129 matthew 5057: my $NumBars = scalar(@{$Values[0]});
1.225 matthew 5058: if ($NumBars < scalar(@Labels)) { $NumBars = scalar(@Labels); }
1.129 matthew 5059: my %ValuesHash;
5060: my $NumSets=1;
5061: foreach my $array (@Values) {
5062: next if (! ref($array));
1.136 matthew 5063: $ValuesHash{$id.'.data.'.$NumSets++} =
1.132 matthew 5064: join(',',@$array);
1.129 matthew 5065: }
1.127 matthew 5066: #
1.136 matthew 5067: my ($height,$width,$xskip,$bar_width) = (200,120,1,15);
1.225 matthew 5068: if ($NumBars < 3) {
5069: $width = 120+$NumBars*32;
1.220 matthew 5070: $xskip = 1;
1.225 matthew 5071: $bar_width = 30;
5072: } elsif ($NumBars < 5) {
5073: $width = 120+$NumBars*20;
5074: $xskip = 1;
5075: $bar_width = 20;
1.220 matthew 5076: } elsif ($NumBars < 10) {
1.136 matthew 5077: $width = 120+$NumBars*15;
5078: $xskip = 1;
5079: $bar_width = 15;
5080: } elsif ($NumBars <= 25) {
5081: $width = 120+$NumBars*11;
5082: $xskip = 5;
5083: $bar_width = 8;
5084: } elsif ($NumBars <= 50) {
5085: $width = 120+$NumBars*8;
5086: $xskip = 5;
5087: $bar_width = 4;
5088: } else {
5089: $width = 120+$NumBars*8;
5090: $xskip = 5;
5091: $bar_width = 4;
5092: }
5093: #
1.137 matthew 5094: $Max = 1 if ($Max < 1);
5095: if ( int($Max) < $Max ) {
5096: $Max++;
5097: $Max = int($Max);
5098: }
1.127 matthew 5099: $Title = '' if (! defined($Title));
5100: $xlabel = '' if (! defined($xlabel));
5101: $ylabel = '' if (! defined($ylabel));
1.369 www 5102: $ValuesHash{$id.'.title'} = &escape($Title);
5103: $ValuesHash{$id.'.xlabel'} = &escape($xlabel);
5104: $ValuesHash{$id.'.ylabel'} = &escape($ylabel);
1.137 matthew 5105: $ValuesHash{$id.'.y_max_value'} = $Max;
1.136 matthew 5106: $ValuesHash{$id.'.NumBars'} = $NumBars;
5107: $ValuesHash{$id.'.NumSets'} = $NumSets;
5108: $ValuesHash{$id.'.PlotType'} = 'bar';
5109: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
5110: $ValuesHash{$id.'.height'} = $height;
5111: $ValuesHash{$id.'.width'} = $width;
5112: $ValuesHash{$id.'.xskip'} = $xskip;
5113: $ValuesHash{$id.'.bar_width'} = $bar_width;
5114: $ValuesHash{$id.'.labels'} = join(',',@Labels);
1.127 matthew 5115: #
1.228 matthew 5116: # Deal with other parameters
5117: while (my ($key,$value) = each(%$extra_settings)) {
5118: $ValuesHash{$id.'.'.$key} = $value;
5119: }
5120: #
1.137 matthew 5121: &Apache::lonnet::appenv(%ValuesHash);
5122: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
5123: }
5124:
5125: ############################################################
5126: ############################################################
5127:
5128: =pod
5129:
5130: =item DrawXYGraph
5131:
1.138 matthew 5132: Facilitates the plotting of data in an XY graph.
5133: Puts plot definition data into the users environment in order for
5134: graph.png to plot it. Returns an <img> tag for the plot.
5135:
5136: Inputs:
5137:
5138: =over 4
5139:
5140: =item $Title: string, the title of the plot
5141:
5142: =item $xlabel: string, text describing the X-axis of the plot
5143:
5144: =item $ylabel: string, text describing the Y-axis of the plot
5145:
5146: =item $Max: scalar, the maximum Y value to use in the plot
5147: If $Max is < any data point, the graph will not be rendered.
5148:
5149: =item $colors: Array ref containing the hex color codes for the data to be
5150: plotted in. If undefined, default values will be used.
5151:
5152: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
5153:
5154: =item $Ydata: Array ref containing Array refs.
1.185 www 5155: Each of the contained arrays will be plotted as a separate curve.
1.138 matthew 5156:
5157: =item %Values: hash indicating or overriding any default values which are
5158: passed to graph.png.
5159: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
5160:
5161: =back
5162:
5163: Returns:
5164:
5165: An <img> tag which references graph.png and the appropriate identifying
5166: information for the plot.
5167:
1.137 matthew 5168: =cut
5169:
5170: ############################################################
5171: ############################################################
5172: sub DrawXYGraph {
5173: my ($Title,$xlabel,$ylabel,$Max,$colors,$Xlabels,$Ydata,%Values)=@_;
5174: #
5175: # Create the identifier for the graph
5176: my $identifier = &get_cgi_id();
5177: my $id = 'cgi.'.$identifier;
5178: #
5179: $Title = '' if (! defined($Title));
5180: $xlabel = '' if (! defined($xlabel));
5181: $ylabel = '' if (! defined($ylabel));
5182: my %ValuesHash =
5183: (
1.369 www 5184: $id.'.title' => &escape($Title),
5185: $id.'.xlabel' => &escape($xlabel),
5186: $id.'.ylabel' => &escape($ylabel),
1.137 matthew 5187: $id.'.y_max_value'=> $Max,
5188: $id.'.labels' => join(',',@$Xlabels),
5189: $id.'.PlotType' => 'XY',
5190: );
5191: #
5192: if (defined($colors) && ref($colors) eq 'ARRAY') {
5193: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
5194: }
5195: #
5196: if (! ref($Ydata) || ref($Ydata) ne 'ARRAY') {
5197: return '';
5198: }
5199: my $NumSets=1;
1.138 matthew 5200: foreach my $array (@{$Ydata}){
1.137 matthew 5201: next if (! ref($array));
5202: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
5203: }
1.138 matthew 5204: $ValuesHash{$id.'.NumSets'} = $NumSets-1;
1.137 matthew 5205: #
5206: # Deal with other parameters
5207: while (my ($key,$value) = each(%Values)) {
5208: $ValuesHash{$id.'.'.$key} = $value;
1.127 matthew 5209: }
5210: #
1.136 matthew 5211: &Apache::lonnet::appenv(%ValuesHash);
5212: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
5213: }
5214:
5215: ############################################################
5216: ############################################################
5217:
5218: =pod
5219:
1.138 matthew 5220: =item DrawXYYGraph
5221:
5222: Facilitates the plotting of data in an XY graph with two Y axes.
5223: Puts plot definition data into the users environment in order for
5224: graph.png to plot it. Returns an <img> tag for the plot.
5225:
5226: Inputs:
5227:
5228: =over 4
5229:
5230: =item $Title: string, the title of the plot
5231:
5232: =item $xlabel: string, text describing the X-axis of the plot
5233:
5234: =item $ylabel: string, text describing the Y-axis of the plot
5235:
5236: =item $colors: Array ref containing the hex color codes for the data to be
5237: plotted in. If undefined, default values will be used.
5238:
5239: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
5240:
5241: =item $Ydata1: The first data set
5242:
5243: =item $Min1: The minimum value of the left Y-axis
5244:
5245: =item $Max1: The maximum value of the left Y-axis
5246:
5247: =item $Ydata2: The second data set
5248:
5249: =item $Min2: The minimum value of the right Y-axis
5250:
5251: =item $Max2: The maximum value of the left Y-axis
5252:
5253: =item %Values: hash indicating or overriding any default values which are
5254: passed to graph.png.
5255: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
5256:
5257: =back
5258:
5259: Returns:
5260:
5261: An <img> tag which references graph.png and the appropriate identifying
5262: information for the plot.
1.136 matthew 5263:
5264: =cut
5265:
5266: ############################################################
5267: ############################################################
1.137 matthew 5268: sub DrawXYYGraph {
5269: my ($Title,$xlabel,$ylabel,$colors,$Xlabels,$Ydata1,$Min1,$Max1,
5270: $Ydata2,$Min2,$Max2,%Values)=@_;
1.136 matthew 5271: #
5272: # Create the identifier for the graph
5273: my $identifier = &get_cgi_id();
5274: my $id = 'cgi.'.$identifier;
5275: #
5276: $Title = '' if (! defined($Title));
5277: $xlabel = '' if (! defined($xlabel));
5278: $ylabel = '' if (! defined($ylabel));
5279: my %ValuesHash =
5280: (
1.369 www 5281: $id.'.title' => &escape($Title),
5282: $id.'.xlabel' => &escape($xlabel),
5283: $id.'.ylabel' => &escape($ylabel),
1.136 matthew 5284: $id.'.labels' => join(',',@$Xlabels),
5285: $id.'.PlotType' => 'XY',
5286: $id.'.NumSets' => 2,
1.137 matthew 5287: $id.'.two_axes' => 1,
5288: $id.'.y1_max_value' => $Max1,
5289: $id.'.y1_min_value' => $Min1,
5290: $id.'.y2_max_value' => $Max2,
5291: $id.'.y2_min_value' => $Min2,
1.136 matthew 5292: );
5293: #
1.137 matthew 5294: if (defined($colors) && ref($colors) eq 'ARRAY') {
5295: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
5296: }
5297: #
5298: if (! ref($Ydata1) || ref($Ydata1) ne 'ARRAY' ||
5299: ! ref($Ydata2) || ref($Ydata2) ne 'ARRAY'){
1.136 matthew 5300: return '';
5301: }
5302: my $NumSets=1;
1.137 matthew 5303: foreach my $array ($Ydata1,$Ydata2){
1.136 matthew 5304: next if (! ref($array));
5305: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
1.137 matthew 5306: }
5307: #
5308: # Deal with other parameters
5309: while (my ($key,$value) = each(%Values)) {
5310: $ValuesHash{$id.'.'.$key} = $value;
1.136 matthew 5311: }
5312: #
5313: &Apache::lonnet::appenv(%ValuesHash);
1.130 albertel 5314: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
1.139 matthew 5315: }
5316:
5317: ############################################################
5318: ############################################################
5319:
5320: =pod
5321:
1.157 matthew 5322: =back
5323:
1.139 matthew 5324: =head1 Statistics helper routines?
5325:
5326: Bad place for them but what the hell.
5327:
1.157 matthew 5328: =over 4
5329:
1.139 matthew 5330: =item &chartlink
5331:
5332: Returns a link to the chart for a specific student.
5333:
5334: Inputs:
5335:
5336: =over 4
5337:
5338: =item $linktext: The text of the link
5339:
5340: =item $sname: The students username
5341:
5342: =item $sdomain: The students domain
5343:
5344: =back
5345:
1.157 matthew 5346: =back
5347:
1.139 matthew 5348: =cut
5349:
5350: ############################################################
5351: ############################################################
5352: sub chartlink {
5353: my ($linktext, $sname, $sdomain) = @_;
5354: my $link = '<a href="/adm/statistics?reportSelected=student_assessment'.
1.369 www 5355: '&SelectedStudent='.&escape($sname.':'.$sdomain).
1.219 albertel 5356: '&chartoutputmode='.HTML::Entities::encode('html, with all links').
1.139 matthew 5357: '">'.$linktext.'</a>';
1.153 matthew 5358: }
5359:
5360: #######################################################
5361: #######################################################
5362:
5363: =pod
5364:
5365: =head1 Course Environment Routines
1.157 matthew 5366:
5367: =over 4
1.153 matthew 5368:
5369: =item &restore_course_settings
5370:
5371: =item &store_course_settings
5372:
5373: Restores/Store indicated form parameters from the course environment.
5374: Will not overwrite existing values of the form parameters.
5375:
5376: Inputs:
5377: a scalar describing the data (e.g. 'chart', 'problem_analysis')
5378:
5379: a hash ref describing the data to be stored. For example:
5380:
5381: %Save_Parameters = ('Status' => 'scalar',
5382: 'chartoutputmode' => 'scalar',
5383: 'chartoutputdata' => 'scalar',
5384: 'Section' => 'array',
1.373 raeburn 5385: 'Group' => 'array',
1.153 matthew 5386: 'StudentData' => 'array',
5387: 'Maps' => 'array');
5388:
5389: Returns: both routines return nothing
5390:
5391: =cut
5392:
5393: #######################################################
5394: #######################################################
5395: sub store_course_settings {
5396: # save to the environment
5397: # appenv the same items, just to be safe
1.258 albertel 5398: my $courseid = $env{'request.course.id'};
1.300 albertel 5399: my $udom = $env{'user.domain'};
5400: my $uname = $env{'user.name'};
1.153 matthew 5401: my ($prefix,$Settings) = @_;
5402: my %SaveHash;
5403: my %AppHash;
5404: while (my ($setting,$type) = each(%$Settings)) {
1.300 albertel 5405: my $basename = join('.','internal',$courseid,$prefix,$setting);
5406: my $envname = 'environment.'.$basename;
1.258 albertel 5407: if (exists($env{'form.'.$setting})) {
1.153 matthew 5408: # Save this value away
5409: if ($type eq 'scalar' &&
1.258 albertel 5410: (! exists($env{$envname}) ||
5411: $env{$envname} ne $env{'form.'.$setting})) {
5412: $SaveHash{$basename} = $env{'form.'.$setting};
5413: $AppHash{$envname} = $env{'form.'.$setting};
1.153 matthew 5414: } elsif ($type eq 'array') {
5415: my $stored_form;
1.258 albertel 5416: if (ref($env{'form.'.$setting})) {
1.153 matthew 5417: $stored_form = join(',',
5418: map {
1.369 www 5419: &escape($_);
1.258 albertel 5420: } sort(@{$env{'form.'.$setting}}));
1.153 matthew 5421: } else {
5422: $stored_form =
1.369 www 5423: &escape($env{'form.'.$setting});
1.153 matthew 5424: }
5425: # Determine if the array contents are the same.
1.258 albertel 5426: if ($stored_form ne $env{$envname}) {
1.153 matthew 5427: $SaveHash{$basename} = $stored_form;
5428: $AppHash{$envname} = $stored_form;
5429: }
5430: }
5431: }
5432: }
5433: my $put_result = &Apache::lonnet::put('environment',\%SaveHash,
1.300 albertel 5434: $udom,$uname);
1.153 matthew 5435: if ($put_result !~ /^(ok|delayed)/) {
5436: &Apache::lonnet::logthis('unable to save form parameters, '.
5437: 'got error:'.$put_result);
5438: }
5439: # Make sure these settings stick around in this session, too
5440: &Apache::lonnet::appenv(%AppHash);
5441: return;
5442: }
5443:
5444: sub restore_course_settings {
1.258 albertel 5445: my $courseid = $env{'request.course.id'};
1.153 matthew 5446: my ($prefix,$Settings) = @_;
5447: while (my ($setting,$type) = each(%$Settings)) {
1.258 albertel 5448: next if (exists($env{'form.'.$setting}));
1.300 albertel 5449: my $envname = 'environment.internal.'.$courseid.'.'.$prefix.
1.153 matthew 5450: '.'.$setting;
1.258 albertel 5451: if (exists($env{$envname})) {
1.153 matthew 5452: if ($type eq 'scalar') {
1.258 albertel 5453: $env{'form.'.$setting} = $env{$envname};
1.153 matthew 5454: } elsif ($type eq 'array') {
1.258 albertel 5455: $env{'form.'.$setting} = [
1.153 matthew 5456: map {
1.369 www 5457: &unescape($_);
1.258 albertel 5458: } split(',',$env{$envname})
1.153 matthew 5459: ];
5460: }
5461: }
5462: }
1.127 matthew 5463: }
5464:
5465: ############################################################
5466: ############################################################
1.154 albertel 5467:
1.378 raeburn 5468: sub course_type {
5469: my ($cid) = @_;
5470: if (!defined($cid)) {
5471: $cid = $env{'request.course.id'};
5472: }
1.404 albertel 5473: if (defined($env{'course.'.$cid.'.type'})) {
5474: return $env{'course.'.$cid.'.type'};
1.378 raeburn 5475: } else {
5476: return 'Course';
1.377 raeburn 5477: }
5478: }
1.156 albertel 5479:
1.406 raeburn 5480: sub group_term {
5481: my $crstype = &course_type();
5482: my %names = (
5483: 'Course' => 'group',
5484: 'Group' => 'team',
5485: );
5486: return $names{$crstype};
5487: }
5488:
1.156 albertel 5489: sub icon {
5490: my ($file)=@_;
1.168 albertel 5491: my $curfext = (split(/\./,$file))[-1];
5492: my $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/unknown.gif';
1.156 albertel 5493: my $embstyle = &Apache::loncommon::fileembstyle($curfext);
1.168 albertel 5494: if (!(!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn')) {
5495: if (-e $Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
5496: $Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
5497: $curfext.".gif") {
5498: $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
5499: $curfext.".gif";
5500: }
5501: }
1.249 albertel 5502: return &lonhttpdurl($iconname);
1.154 albertel 5503: }
1.84 albertel 5504:
1.215 albertel 5505: sub lonhttpdurl {
5506: my ($url)=@_;
5507: my $lonhttpd_port=$Apache::lonnet::perlvar{'lonhttpdPort'};
5508: if (!defined($lonhttpd_port)) { $lonhttpd_port='8080'; }
5509: return 'http://'.$ENV{'SERVER_NAME'}.':'.$lonhttpd_port.$url;
5510: }
5511:
1.213 albertel 5512: sub connection_aborted {
5513: my ($r)=@_;
5514: $r->print(" ");$r->rflush();
5515: my $c = $r->connection;
5516: return $c->aborted();
5517: }
5518:
1.221 foxr 5519: # Escapes strings that may have embedded 's that will be put into
1.222 foxr 5520: # strings as 'strings'.
5521: sub escape_single {
1.221 foxr 5522: my ($input) = @_;
1.223 albertel 5523: $input =~ s/\\/\\\\/g; # Escape the \'s..(must be first)>
1.221 foxr 5524: $input =~ s/\'/\\\'/g; # Esacpe the 's....
5525: return $input;
5526: }
1.223 albertel 5527:
1.222 foxr 5528: # Same as escape_single, but escape's "'s This
5529: # can be used for "strings"
5530: sub escape_double {
5531: my ($input) = @_;
5532: $input =~ s/\\/\\\\/g; # Escape the /'s..(must be first)>
5533: $input =~ s/\"/\\\"/g; # Esacpe the "s....
5534: return $input;
5535: }
1.223 albertel 5536:
1.222 foxr 5537: # Escapes the last element of a full URL.
5538: sub escape_url {
5539: my ($url) = @_;
1.238 raeburn 5540: my @urlslices = split(/\//, $url,-1);
1.369 www 5541: my $lastitem = &escape(pop(@urlslices));
1.223 albertel 5542: return join('/',@urlslices).'/'.$lastitem;
1.222 foxr 5543: }
1.41 ng 5544: =pod
5545:
5546: =back
5547:
1.112 bowersj2 5548: =cut
1.41 ng 5549:
1.112 bowersj2 5550: 1;
5551: __END__;
1.41 ng 5552:
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