Annotation of loncom/interface/loncommon.pm, revision 1.225
1.10 albertel 1: # The LearningOnline Network with CAPA
1.1 albertel 2: # a pile of common routines
1.10 albertel 3: #
1.225 ! matthew 4: # $Id: loncommon.pm,v 1.224 2004/10/29 18:40:40 raeburn 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;
1.22 www 58: use Apache::lonnet();
1.46 matthew 59: use GDBM_File;
1.51 www 60: use POSIX qw(strftime mktime);
1.99 www 61: use Apache::Constants qw(:common :http :methods);
1.1 albertel 62: use Apache::lonmsg();
1.82 www 63: use Apache::lonmenu();
1.117 www 64: use Apache::lonlocal;
1.139 matthew 65: use HTML::Entities;
1.117 www 66:
1.22 www 67: my $readit;
68:
1.157 matthew 69: ##
70: ## Global Variables
71: ##
1.46 matthew 72:
1.20 www 73: # ----------------------------------------------- Filetypes/Languages/Copyright
1.12 harris41 74: my %language;
1.124 www 75: my %supported_language;
1.12 harris41 76: my %cprtag;
1.192 taceyjo1 77: my %scprtag;
1.12 harris41 78: my %fe; my %fd;
1.41 ng 79: my %category_extensions;
1.12 harris41 80:
1.63 www 81: # ---------------------------------------------- Designs
82:
83: my %designhash;
84:
1.46 matthew 85: # ---------------------------------------------- Thesaurus variables
1.144 matthew 86: #
87: # %Keywords:
88: # A hash used by &keyword to determine if a word is considered a keyword.
89: # $thesaurus_db_file
90: # Scalar containing the full path to the thesaurus database.
1.46 matthew 91:
92: my %Keywords;
93: my $thesaurus_db_file;
94:
1.144 matthew 95: #
96: # Initialize values from language.tab, copyright.tab, filetypes.tab,
97: # thesaurus.tab, and filecategories.tab.
98: #
1.18 www 99: BEGIN {
1.46 matthew 100: # Variable initialization
101: $thesaurus_db_file = $Apache::lonnet::perlvar{'lonTabDir'}."/thesaurus.db";
102: #
1.22 www 103: unless ($readit) {
1.12 harris41 104: # ------------------------------------------------------------------- languages
105: {
1.158 raeburn 106: my $langtabfile = $Apache::lonnet::perlvar{'lonTabDir'}.
107: '/language.tab';
108: if ( open(my $fh,"<$langtabfile") ) {
109: while (<$fh>) {
110: next if /^\#/;
111: chomp;
112: my ($key,$two,$country,$three,$enc,$val,$sup)=(split(/\t/,$_));
113: $language{$key}=$val.' - '.$enc;
114: if ($sup) {
115: $supported_language{$key}=$sup;
116: }
117: }
118: close($fh);
119: }
1.12 harris41 120: }
121: # ------------------------------------------------------------------ copyrights
122: {
1.158 raeburn 123: my $copyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
124: '/copyright.tab';
125: if ( open (my $fh,"<$copyrightfile") ) {
126: while (<$fh>) {
127: next if /^\#/;
128: chomp;
129: my ($key,$val)=(split(/\s+/,$_,2));
130: $cprtag{$key}=$val;
131: }
132: close($fh);
133: }
1.12 harris41 134: }
1.192 taceyjo1 135: # ------------------------------------------------------------------ source copyrights
136: {
137: my $sourcecopyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
138: '/source_copyright.tab';
139: if ( open (my $fh,"<$sourcecopyrightfile") ) {
140: while (<$fh>) {
141: next if /^\#/;
142: chomp;
143: my ($key,$val)=(split(/\s+/,$_,2));
144: $scprtag{$key}=$val;
145: }
146: close($fh);
147: }
148: }
1.63 www 149:
150: # -------------------------------------------------------------- domain designs
151:
152: my $filename;
153: my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors';
154: opendir(DIR,$designdir);
155: while ($filename=readdir(DIR)) {
156: my ($domain)=($filename=~/^(\w+)\./);
157: {
1.158 raeburn 158: my $designfile = $designdir.'/'.$filename;
159: if ( open (my $fh,"<$designfile") ) {
160: while (<$fh>) {
161: next if /^\#/;
162: chomp;
163: my ($key,$val)=(split(/\=/,$_));
164: if ($val) { $designhash{$domain.'.'.$key}=$val; }
165: }
166: close($fh);
167: }
1.63 www 168: }
169:
170: }
171: closedir(DIR);
172:
173:
1.15 harris41 174: # ------------------------------------------------------------- file categories
175: {
1.158 raeburn 176: my $categoryfile = $Apache::lonnet::perlvar{'lonTabDir'}.
177: '/filecategories.tab';
178: if ( open (my $fh,"<$categoryfile") ) {
179: while (<$fh>) {
180: next if /^\#/;
181: chomp;
182: my ($extension,$category)=(split(/\s+/,$_,2));
183: push @{$category_extensions{lc($category)}},$extension;
184: }
185: close($fh);
186: }
187:
1.15 harris41 188: }
1.12 harris41 189: # ------------------------------------------------------------------ file types
190: {
1.158 raeburn 191: my $typesfile = $Apache::lonnet::perlvar{'lonTabDir'}.
192: '/filetypes.tab';
193: if ( open (my $fh,"<$typesfile") ) {
1.16 harris41 194: while (<$fh>) {
1.158 raeburn 195: next if (/^\#/);
196: chomp;
197: my ($ending,$emb,$descr)=split(/\s+/,$_,3);
198: if ($descr ne '') {
199: $fe{$ending}=lc($emb);
200: $fd{$ending}=$descr;
201: }
202: }
203: close($fh);
204: }
1.12 harris41 205: }
1.22 www 206: &Apache::lonnet::logthis(
1.46 matthew 207: "<font color=yellow>INFO: Read file types</font>");
1.22 www 208: $readit=1;
1.46 matthew 209: } # end of unless($readit)
1.32 matthew 210:
211: }
1.112 bowersj2 212:
1.42 matthew 213: ###############################################################
214: ## HTML and Javascript Helper Functions ##
215: ###############################################################
216:
217: =pod
218:
1.112 bowersj2 219: =head1 HTML and Javascript Functions
1.42 matthew 220:
1.112 bowersj2 221: =over 4
222:
223: =item * browser_and_searcher_javascript ()
224:
225: X<browsing, javascript>X<searching, javascript>Returns a string
226: containing javascript with two functions, C<openbrowser> and
227: C<opensearcher>. Returned string does not contain E<lt>scriptE<gt>
228: tags.
1.42 matthew 229:
1.112 bowersj2 230: =item * openbrowser(formname,elementname,only,omit) [javascript]
1.42 matthew 231:
232: inputs: formname, elementname, only, omit
233:
234: formname and elementname indicate the name of the html form and name of
235: the element that the results of the browsing selection are to be placed in.
236:
237: Specifying 'only' will restrict the browser to displaying only files
1.185 www 238: with the given extension. Can be a comma separated list.
1.42 matthew 239:
240: Specifying 'omit' will restrict the browser to NOT displaying files
1.185 www 241: with the given extension. Can be a comma separated list.
1.42 matthew 242:
1.112 bowersj2 243: =item * opensearcher(formname, elementname) [javascript]
1.42 matthew 244:
245: Inputs: formname, elementname
246:
247: formname and elementname specify the name of the html form and the name
248: of the element the selection from the search results will be placed in.
249:
250: =cut
251:
252: sub browser_and_searcher_javascript {
1.199 albertel 253: my ($mode)=@_;
254: if (!defined($mode)) { $mode='edit'; }
1.170 www 255: my $resurl=&lastresurl();
1.42 matthew 256: return <<END;
1.219 albertel 257: // <!-- BEGIN LON-CAPA Internal
1.50 matthew 258: var editbrowser = null;
1.135 albertel 259: function openbrowser(formname,elementname,only,omit,titleelement) {
1.170 www 260: var url = '$resurl/?';
1.42 matthew 261: if (editbrowser == null) {
262: url += 'launch=1&';
263: }
264: url += 'catalogmode=interactive&';
1.199 albertel 265: url += 'mode=$mode&';
1.42 matthew 266: url += 'form=' + formname + '&';
267: if (only != null) {
268: url += 'only=' + only + '&';
1.217 albertel 269: } else {
270: url += 'only=&';
271: }
1.42 matthew 272: if (omit != null) {
273: url += 'omit=' + omit + '&';
1.217 albertel 274: } else {
275: url += 'omit=&';
276: }
1.135 albertel 277: if (titleelement != null) {
278: url += 'titleelement=' + titleelement + '&';
1.217 albertel 279: } else {
280: url += 'titleelement=&';
281: }
1.42 matthew 282: url += 'element=' + elementname + '';
283: var title = 'Browser';
1.217 albertel 284: var options = 'scrollbars=1,resizable=1,menubar=1,location=1';
1.42 matthew 285: options += ',width=700,height=600';
286: editbrowser = open(url,title,options,'1');
287: editbrowser.focus();
288: }
289: var editsearcher;
1.135 albertel 290: function opensearcher(formname,elementname,titleelement) {
1.42 matthew 291: var url = '/adm/searchcat?';
292: if (editsearcher == null) {
293: url += 'launch=1&';
294: }
295: url += 'catalogmode=interactive&';
1.199 albertel 296: url += 'mode=$mode&';
1.42 matthew 297: url += 'form=' + formname + '&';
1.135 albertel 298: if (titleelement != null) {
299: url += 'titleelement=' + titleelement + '&';
1.217 albertel 300: } else {
301: url += 'titleelement=&';
302: }
1.42 matthew 303: url += 'element=' + elementname + '';
304: var title = 'Search';
305: var options = 'scrollbars=1,resizable=1,menubar=0';
306: options += ',width=700,height=600';
307: editsearcher = open(url,title,options,'1');
308: editsearcher.focus();
309: }
1.219 albertel 310: // END LON-CAPA Internal -->
1.42 matthew 311: END
1.170 www 312: }
313:
314: sub lastresurl {
315: if ($ENV{'environment.lastresurl'}) {
316: return $ENV{'environment.lastresurl'}
317: } else {
318: return '/res';
319: }
320: }
321:
322: sub storeresurl {
323: my $resurl=&Apache::lonnet::clutter(shift);
324: unless ($resurl=~/^\/res/) { return 0; }
325: $resurl=~s/\/$//;
326: &Apache::lonnet::put('environment',{'lastresurl' => $resurl});
327: &Apache::lonnet::appenv('environment.lastresurl' => $resurl);
328: return 1;
1.42 matthew 329: }
330:
1.74 www 331: sub studentbrowser_javascript {
1.111 www 332: unless (
333: (($ENV{'request.course.id'}) &&
334: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})))
335: || ($ENV{'request.role'}=~/^(au|dc|su)/)
336: ) { return ''; }
1.74 www 337: return (<<'ENDSTDBRW');
338: <script type="text/javascript" language="Javascript" >
339: var stdeditbrowser;
1.111 www 340: function openstdbrowser(formname,uname,udom,roleflag) {
1.74 www 341: var url = '/adm/pickstudent?';
342: var filter;
343: eval('filter=document.'+formname+'.'+uname+'.value;');
344: if (filter != null) {
345: if (filter != '') {
346: url += 'filter='+filter+'&';
347: }
348: }
349: url += 'form=' + formname + '&unameelement='+uname+
350: '&udomelement='+udom;
1.111 www 351: if (roleflag) { url+="&roles=1"; }
1.102 www 352: var title = 'Student_Browser';
1.74 www 353: var options = 'scrollbars=1,resizable=1,menubar=0';
354: options += ',width=700,height=600';
355: stdeditbrowser = open(url,title,options,'1');
356: stdeditbrowser.focus();
357: }
358: </script>
359: ENDSTDBRW
360: }
1.42 matthew 361:
1.74 www 362: sub selectstudent_link {
1.111 www 363: my ($form,$unameele,$udomele)=@_;
364: if ($ENV{'request.course.id'}) {
365: unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
366: return '';
367: }
368: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
1.119 www 369: '","'.$udomele.'");'."'>".&mt('Select User')."</a>";
1.74 www 370: }
1.111 www 371: if ($ENV{'request.role'}=~/^(au|dc|su)/) {
372: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
1.119 www 373: '","'.$udomele.'",1);'."'>".&mt('Select User')."</a>";
1.111 www 374: }
375: return '';
1.91 www 376: }
377:
378: sub coursebrowser_javascript {
1.128 albertel 379: my ($domainfilter)=@_;
380: return (<<ENDSTDBRW);
1.91 www 381: <script type="text/javascript" language="Javascript" >
382: var stdeditbrowser;
1.187 albertel 383: function opencrsbrowser(formname,uname,udom,desc) {
1.91 www 384: var url = '/adm/pickcourse?';
385: var filter;
386: if (filter != null) {
387: if (filter != '') {
388: url += 'filter='+filter+'&';
389: }
390: }
1.128 albertel 391: var domainfilter='$domainfilter';
392: if (domainfilter != null) {
393: if (domainfilter != '') {
394: url += 'domainfilter='+domainfilter+'&';
395: }
396: }
1.91 www 397: url += 'form=' + formname + '&cnumelement='+uname+
1.187 albertel 398: '&cdomelement='+udom+
399: '&cnameelement='+desc;
1.102 www 400: var title = 'Course_Browser';
1.91 www 401: var options = 'scrollbars=1,resizable=1,menubar=0';
402: options += ',width=700,height=600';
403: stdeditbrowser = open(url,title,options,'1');
404: stdeditbrowser.focus();
405: }
406: </script>
407: ENDSTDBRW
408: }
409:
410: sub selectcourse_link {
1.187 albertel 411: my ($form,$unameele,$udomele,$desc)=@_;
1.91 www 412: return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele.
1.187 albertel 413: '","'.$udomele.'","'.$desc.'");'."'>".&mt('Select Course')."</a>";
1.74 www 414: }
1.42 matthew 415:
416: =pod
1.36 matthew 417:
1.112 bowersj2 418: =item * linked_select_forms(...)
1.36 matthew 419:
420: linked_select_forms returns a string containing a <script></script> block
421: and html for two <select> menus. The select menus will be linked in that
422: changing the value of the first menu will result in new values being placed
423: in the second menu. The values in the select menu will appear in alphabetical
424: order.
425:
426: linked_select_forms takes the following ordered inputs:
427:
428: =over 4
429:
1.112 bowersj2 430: =item * $formname, the name of the <form> tag
1.36 matthew 431:
1.112 bowersj2 432: =item * $middletext, the text which appears between the <select> tags
1.36 matthew 433:
1.112 bowersj2 434: =item * $firstdefault, the default value for the first menu
1.36 matthew 435:
1.112 bowersj2 436: =item * $firstselectname, the name of the first <select> tag
1.36 matthew 437:
1.112 bowersj2 438: =item * $secondselectname, the name of the second <select> tag
1.36 matthew 439:
1.112 bowersj2 440: =item * $hashref, a reference to a hash containing the data for the menus.
1.36 matthew 441:
1.41 ng 442: =back
443:
1.36 matthew 444: Below is an example of such a hash. Only the 'text', 'default', and
445: 'select2' keys must appear as stated. keys(%menu) are the possible
446: values for the first select menu. The text that coincides with the
1.41 ng 447: first menu value is given in $menu{$choice1}->{'text'}. The values
1.36 matthew 448: and text for the second menu are given in the hash pointed to by
449: $menu{$choice1}->{'select2'}.
450:
1.112 bowersj2 451: my %menu = ( A1 => { text =>"Choice A1" ,
452: default => "B3",
453: select2 => {
454: B1 => "Choice B1",
455: B2 => "Choice B2",
456: B3 => "Choice B3",
457: B4 => "Choice B4"
458: }
459: },
460: A2 => { text =>"Choice A2" ,
461: default => "C2",
462: select2 => {
463: C1 => "Choice C1",
464: C2 => "Choice C2",
465: C3 => "Choice C3"
466: }
467: },
468: A3 => { text =>"Choice A3" ,
469: default => "D6",
470: select2 => {
471: D1 => "Choice D1",
472: D2 => "Choice D2",
473: D3 => "Choice D3",
474: D4 => "Choice D4",
475: D5 => "Choice D5",
476: D6 => "Choice D6",
477: D7 => "Choice D7"
478: }
479: }
480: );
1.36 matthew 481:
482: =cut
483:
484: sub linked_select_forms {
485: my ($formname,
486: $middletext,
487: $firstdefault,
488: $firstselectname,
489: $secondselectname,
490: $hashref
491: ) = @_;
492: my $second = "document.$formname.$secondselectname";
493: my $first = "document.$formname.$firstselectname";
494: # output the javascript to do the changing
495: my $result = '';
1.219 albertel 496: $result.="<script type=\"text/javascript\">\n";
1.36 matthew 497: $result.="var select2data = new Object();\n";
498: $" = '","';
499: my $debug = '';
500: foreach my $s1 (sort(keys(%$hashref))) {
501: $result.="select2data.d_$s1 = new Object();\n";
502: $result.="select2data.d_$s1.def = new String('".
503: $hashref->{$s1}->{'default'}."');\n";
504: $result.="select2data.d_$s1.values = new Array(";
505: my @s2values = sort(keys( %{ $hashref->{$s1}->{'select2'} } ));
506: $result.="\"@s2values\");\n";
507: $result.="select2data.d_$s1.texts = new Array(";
508: my @s2texts;
509: foreach my $value (@s2values) {
510: push @s2texts, $hashref->{$s1}->{'select2'}->{$value};
511: }
512: $result.="\"@s2texts\");\n";
513: }
514: $"=' ';
515: $result.= <<"END";
516:
517: function select1_changed() {
518: // Determine new choice
519: var newvalue = "d_" + $first.value;
520: // update select2
521: var values = select2data[newvalue].values;
522: var texts = select2data[newvalue].texts;
523: var select2def = select2data[newvalue].def;
524: var i;
525: // out with the old
526: for (i = 0; i < $second.options.length; i++) {
527: $second.options[i] = null;
528: }
529: // in with the nuclear
530: for (i=0;i<values.length; i++) {
531: $second.options[i] = new Option(values[i]);
1.143 matthew 532: $second.options[i].value = values[i];
1.36 matthew 533: $second.options[i].text = texts[i];
534: if (values[i] == select2def) {
535: $second.options[i].selected = true;
536: }
537: }
538: }
539: </script>
540: END
541: # output the initial values for the selection lists
542: $result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed()\">\n";
543: foreach my $value (sort(keys(%$hashref))) {
544: $result.=" <option value=\"$value\" ";
545: $result.=" selected=\"true\" " if ($value eq $firstdefault);
1.119 www 546: $result.=">".&mt($hashref->{$value}->{'text'})."</option>\n";
1.36 matthew 547: }
548: $result .= "</select>\n";
549: my %select2 = %{$hashref->{$firstdefault}->{'select2'}};
550: $result .= $middletext;
551: $result .= "<select size=\"1\" name=\"$secondselectname\">\n";
552: my $seconddefault = $hashref->{$firstdefault}->{'default'};
553: foreach my $value (sort(keys(%select2))) {
554: $result.=" <option value=\"$value\" ";
555: $result.=" selected=\"true\" " if ($value eq $seconddefault);
1.119 www 556: $result.=">".&mt($select2{$value})."</option>\n";
1.36 matthew 557: }
558: $result .= "</select>\n";
559: # return $debug;
560: return $result;
561: } # end of sub linked_select_forms {
562:
1.45 matthew 563: =pod
1.44 bowersj2 564:
1.112 bowersj2 565: =item * help_open_topic($topic, $text, $stayOnPage, $width, $height)
1.44 bowersj2 566:
1.112 bowersj2 567: Returns a string corresponding to an HTML link to the given help
568: $topic, where $topic corresponds to the name of a .tex file in
569: /home/httpd/html/adm/help/tex, with underscores replaced by
570: spaces.
571:
572: $text will optionally be linked to the same topic, allowing you to
573: link text in addition to the graphic. If you do not want to link
574: text, but wish to specify one of the later parameters, pass an
575: empty string.
576:
577: $stayOnPage is a value that will be interpreted as a boolean. If true,
578: the link will not open a new window. If false, the link will open
579: a new window using Javascript. (Default is false.)
580:
581: $width and $height are optional numerical parameters that will
582: override the width and height of the popped up window, which may
583: be useful for certain help topics with big pictures included.
1.44 bowersj2 584:
585: =cut
586:
587: sub help_open_topic {
1.48 bowersj2 588: my ($topic, $text, $stayOnPage, $width, $height) = @_;
589: $text = "" if (not defined $text);
1.44 bowersj2 590: $stayOnPage = 0 if (not defined $stayOnPage);
1.108 bowersj2 591: if ($ENV{'browser.interface'} eq 'textual' ||
592: $ENV{'environment.remote'} eq 'off' ) {
1.79 www 593: $stayOnPage=1;
594: }
1.44 bowersj2 595: $width = 350 if (not defined $width);
596: $height = 400 if (not defined $height);
597: my $filename = $topic;
598: $filename =~ s/ /_/g;
599:
1.48 bowersj2 600: my $template = "";
601: my $link;
1.159 www 602:
603: $topic=~s/\W/\_/g;
1.44 bowersj2 604:
605: if (!$stayOnPage)
606: {
1.72 bowersj2 607: $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
1.44 bowersj2 608: }
609: else
610: {
1.48 bowersj2 611: $link = "/adm/help/${filename}.hlp";
612: }
613:
614: # Add the text
615: if ($text ne "")
616: {
1.77 www 617: $template .=
618: "<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>".
1.78 www 619: "<td bgcolor='#5555FF'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.48 bowersj2 620: }
621:
622: # Add the graphic
1.179 matthew 623: my $title = &mt('Online Help');
1.215 albertel 624: my $helpicon=&lonhttpdurl("/adm/help/gif/smallHelp.gif");
1.48 bowersj2 625: $template .= <<"ENDTEMPLATE";
1.218 albertel 626: <a href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help: $topic)" /></a>
1.44 bowersj2 627: ENDTEMPLATE
1.78 www 628: if ($text ne '') { $template.='</td></tr></table>' };
1.44 bowersj2 629: return $template;
630:
1.106 bowersj2 631: }
632:
633: # This is a quicky function for Latex cheatsheet editing, since it
634: # appears in at least four places
635: sub helpLatexCheatsheet {
636: my $other = shift;
637: my $addOther = '';
638: if ($other) {
639: $addOther = Apache::loncommon::help_open_topic($other, shift,
640: undef, undef, 600) .
641: '</td><td>';
642: }
643: return '<table><tr><td>'.
644: $addOther .
645: &Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols',
646: undef,undef,600)
647: .'</td><td>'.
648: &Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols',
649: undef,undef,600)
650: .'</td></tr></table>';
1.172 www 651: }
652:
1.193 raeburn 653: sub help_open_menu {
654: my ($color,$topic,$component_help,$function,$faq,$bug,$stayOnPage,$width,$height,$text) = @_;
655: $text = "" if (not defined $text);
656: $stayOnPage = 0 if (not defined $stayOnPage);
657: if ($ENV{'browser.interface'} eq 'textual' ||
658: $ENV{'environment.remote'} eq 'off' ) {
659: $stayOnPage=1;
660: }
661: $width = 620 if (not defined $width);
662: $height = 600 if (not defined $height);
663: my $link='';
1.201 raeburn 664: my $title = &mt('Get help');
1.193 raeburn 665: my $origurl = $ENV{'REQUEST_URI'};
666: my $timestamp = time;
667: foreach (\$color,\$function,\$topic,\$component_help,\$faq,\$bug,\$origurl) {
668: $$_ = &Apache::lonnet::escape($$_);
669: }
670:
1.195 albertel 671: if (!$stayOnPage) {
1.193 raeburn 672: $link = "javascript:helpMenu('open')";
1.195 albertel 673: } else {
1.193 raeburn 674: $link = "javascript:helpMenu('display')";
675: }
1.198 raeburn 676: my $banner_link = "/adm/helpmenu?page=banner&color=$color&function=$function&topic=$topic&component_help=$component_help&faq=$faq&bug=$bug&origurl=$origurl&stamp=$timestamp&stayonpage=$stayOnPage";
1.193 raeburn 677: my $details_link = "/adm/helpmenu?page=body&color=$color&function=$function&topic=$topic&component_help=$component_help&faq=$faq&bug=$bug&origurl=$origurl&stamp=$timestamp";
1.196 albertel 678: my $template;
679: if ($text ne "") {
680: $template .=
1.211 www 681: "<table bgcolor='#773311' cellspacing='1' cellpadding='1' border='0'><tr>".
682: "<td bgcolor='#886622'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.196 albertel 683: }
1.215 albertel 684: my $helpicon=&lonhttpdurl("/adm/lonIcons/helpgateway.gif");
1.196 albertel 685: $template .= <<"ENDTEMPLATE";
1.219 albertel 686: <script type="text/javascript">
687: //<!-- BEGIN LON-CAPA Internal
1.193 raeburn 688: function helpMenu(caller) {
689: if (caller == 'open') {
690: newWindow = window.open("","helpmenu","HEIGHT=$height,WIDTH=$width,resize=yes,scrollbars=yes" )
691: caller = newWindow.document
692: } else {
693: caller = this.document
694: }
695: caller.write("<html><head><title>LON-CAPA Help Menu</title><meta http-equiv='pragma' content='no-cache'></head>")
696: caller.write("<frameset rows='105,*' border='0'><frame name='bannerframe' src='$banner_link'><frame name='bodyframe' src='$details_link'></frameset>")
697: caller.write("</html>")
698: caller.close()
699: if (caller == newWindow.document) {
700: caller.focus()
701: }
702: }
1.219 albertel 703: // END LON-CAPA Internal -->
1.193 raeburn 704: </script>
1.218 albertel 705: <a href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help Menu)" /></a>
1.193 raeburn 706: ENDTEMPLATE
1.203 albertel 707: if ($component_help) {
708: if (!$text) {
709: $template=&help_open_topic($component_help,undef,$stayOnPage,
710: $width,$height).' '.$template;
711: } else {
712: my $help_text;
713: $help_text=&Apache::lonnet::unescape($topic);
714: $template='<table><tr><td>'.
715: &help_open_topic($component_help,$help_text,$stayOnPage,
716: $width,$height).'</td><td>'.$template.
717: '</td></tr></table>';
718: }
719: }
1.196 albertel 720: if ($text ne '') { $template.='</td></tr></table>' };
1.193 raeburn 721: return $template;
722: }
723:
1.172 www 724: sub help_open_bug {
725: my ($topic, $text, $stayOnPage, $width, $height) = @_;
726: unless ($ENV{'user.adv'}) { return ''; }
727: unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }
728: $text = "" if (not defined $text);
729: $stayOnPage = 0 if (not defined $stayOnPage);
730: if ($ENV{'browser.interface'} eq 'textual' ||
731: $ENV{'environment.remote'} eq 'off' ) {
732: $stayOnPage=1;
733: }
1.184 albertel 734: $width = 600 if (not defined $width);
735: $height = 600 if (not defined $height);
1.172 www 736:
737: $topic=~s/\W+/\+/g;
738: my $link='';
739: my $template='';
740: my $url=$Apache::lonnet::perlvar{'BugzillaHost'}.'enter_bug.cgi?product=LON-CAPA&bug_file_loc='.
741: &Apache::lonnet::escape($ENV{'REQUEST_URI'}).'&component='.$topic;
742: if (!$stayOnPage)
743: {
744: $link = "javascript:void(open('$url', 'Bugzilla', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
745: }
746: else
747: {
748: $link = $url;
749: }
750: # Add the text
751: if ($text ne "")
752: {
753: $template .=
754: "<table bgcolor='#AA3333' cellspacing='1' cellpadding='1' border='0'><tr>".
755: "<td bgcolor='#FF5555'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
756: }
757:
758: # Add the graphic
1.179 matthew 759: my $title = &mt('Report a Bug');
1.215 albertel 760: my $bugicon=&lonhttpdurl("/adm/lonMisc/smallBug.gif");
1.172 www 761: $template .= <<"ENDTEMPLATE";
1.218 albertel 762: <a href="$link" title="$title"><img src="$bugicon" border="0" alt="(Bug: $topic)" /></a>
1.172 www 763: ENDTEMPLATE
764: if ($text ne '') { $template.='</td></tr></table>' };
765: return $template;
766:
767: }
768:
769: sub help_open_faq {
770: my ($topic, $text, $stayOnPage, $width, $height) = @_;
771: unless ($ENV{'user.adv'}) { return ''; }
772: unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }
773: $text = "" if (not defined $text);
774: $stayOnPage = 0 if (not defined $stayOnPage);
775: if ($ENV{'browser.interface'} eq 'textual' ||
776: $ENV{'environment.remote'} eq 'off' ) {
777: $stayOnPage=1;
778: }
779: $width = 350 if (not defined $width);
780: $height = 400 if (not defined $height);
781:
782: $topic=~s/\W+/\+/g;
783: my $link='';
784: my $template='';
785: my $url=$Apache::lonnet::perlvar{'FAQHost'}.'/fom/cache/'.$topic.'.html';
786: if (!$stayOnPage)
787: {
788: $link = "javascript:void(open('$url', 'FAQ-O-Matic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
789: }
790: else
791: {
792: $link = $url;
793: }
794:
795: # Add the text
796: if ($text ne "")
797: {
798: $template .=
1.173 www 799: "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
800: "<td bgcolor='#448844'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.172 www 801: }
802:
803: # Add the graphic
1.179 matthew 804: my $title = &mt('View the FAQ');
1.215 albertel 805: my $faqicon=&lonhttpdurl("/adm/lonMisc/smallFAQ.gif");
1.172 www 806: $template .= <<"ENDTEMPLATE";
1.218 albertel 807: <a href="$link" title="$title"><img src="$faqicon" border="0" alt="(FAQ: $topic)" /></a>
1.172 www 808: ENDTEMPLATE
809: if ($text ne '') { $template.='</td></tr></table>' };
810: return $template;
811:
1.44 bowersj2 812: }
1.37 matthew 813:
1.180 matthew 814: ###############################################################
815: ###############################################################
816:
1.45 matthew 817: =pod
818:
1.112 bowersj2 819: =item * csv_translate($text)
1.37 matthew 820:
1.185 www 821: Translate $text to allow it to be output as a 'comma separated values'
1.37 matthew 822: format.
823:
824: =cut
825:
1.180 matthew 826: ###############################################################
827: ###############################################################
1.37 matthew 828: sub csv_translate {
829: my $text = shift;
830: $text =~ s/\"/\"\"/g;
1.209 albertel 831: $text =~ s/\n/ /g;
1.37 matthew 832: return $text;
833: }
1.180 matthew 834:
835:
836: ###############################################################
837: ###############################################################
838:
839: =pod
840:
841: =item * define_excel_formats
842:
843: Define some commonly used Excel cell formats.
844:
845: Currently supported formats:
846:
847: =over 4
848:
849: =item header
850:
851: =item bold
852:
853: =item h1
854:
855: =item h2
856:
857: =item h3
858:
859: =item date
860:
861: =back
862:
863: Inputs: $workbook
864:
865: Returns: $format, a hash reference.
866:
867: =cut
868:
869: ###############################################################
870: ###############################################################
871: sub define_excel_formats {
872: my ($workbook) = @_;
873: my $format;
874: $format->{'header'} = $workbook->add_format(bold => 1,
875: bottom => 1,
876: align => 'center');
877: $format->{'bold'} = $workbook->add_format(bold=>1);
878: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
879: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
880: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
881: $format->{'date'} = $workbook->add_format(num_format=>
1.207 matthew 882: 'mm/dd/yyyy hh:mm:ss');
1.180 matthew 883: return $format;
884: }
885:
886: ###############################################################
887: ###############################################################
1.113 bowersj2 888:
889: =pod
890:
891: =item * change_content_javascript():
892:
893: This and the next function allow you to create small sections of an
894: otherwise static HTML page that you can update on the fly with
895: Javascript, even in Netscape 4.
896:
897: The Javascript fragment returned by this function (no E<lt>scriptE<gt> tag)
898: must be written to the HTML page once. It will prove the Javascript
899: function "change(name, content)". Calling the change function with the
900: name of the section
901: you want to update, matching the name passed to C<changable_area>, and
902: the new content you want to put in there, will put the content into
903: that area.
904:
905: B<Note>: Netscape 4 only reserves enough space for the changable area
906: to contain room for the original contents. You need to "make space"
907: for whatever changes you wish to make, and be B<sure> to check your
908: code in Netscape 4. This feature in Netscape 4 is B<not> powerful;
909: it's adequate for updating a one-line status display, but little more.
910: This script will set the space to 100% width, so you only need to
911: worry about height in Netscape 4.
912:
913: Modern browsers are much less limiting, and if you can commit to the
914: user not using Netscape 4, this feature may be used freely with
915: pretty much any HTML.
916:
917: =cut
918:
919: sub change_content_javascript {
920: # If we're on Netscape 4, we need to use Layer-based code
921: if ($ENV{'browser.type'} eq 'netscape' &&
922: $ENV{'browser.version'} =~ /^4\./) {
923: return (<<NETSCAPE4);
924: function change(name, content) {
925: doc = document.layers[name+"___escape"].layers[0].document;
926: doc.open();
927: doc.write(content);
928: doc.close();
929: }
930: NETSCAPE4
931: } else {
932: # Otherwise, we need to use semi-standards-compliant code
933: # (technically, "innerHTML" isn't standard but the equivalent
934: # is really scary, and every useful browser supports it
935: return (<<DOMBASED);
936: function change(name, content) {
937: element = document.getElementById(name);
938: element.innerHTML = content;
939: }
940: DOMBASED
941: }
942: }
943:
944: =pod
945:
946: =item * changable_area($name, $origContent):
947:
948: This provides a "changable area" that can be modified on the fly via
949: the Javascript code provided in C<change_content_javascript>. $name is
950: the name you will use to reference the area later; do not repeat the
951: same name on a given HTML page more then once. $origContent is what
952: the area will originally contain, which can be left blank.
953:
954: =cut
955:
956: sub changable_area {
957: my ($name, $origContent) = @_;
958:
959: if ($ENV{'browser.type'} eq 'netscape' &&
960: $ENV{'browser.version'} =~ /^4\./) {
961: # If this is netscape 4, we need to use the Layer tag
962: return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>";
963: } else {
964: return "<span id='$name'>$origContent</span>";
965: }
966: }
967:
968: =pod
969:
970: =back
971:
972: =cut
1.37 matthew 973:
974: ###############################################################
1.33 matthew 975: ## Home server <option> list generating code ##
976: ###############################################################
1.35 matthew 977:
1.45 matthew 978: =pod
979:
1.112 bowersj2 980: =head1 Home Server option list generating code
981:
982: =over 4
983:
984: =item * get_domains()
1.35 matthew 985:
986: Returns an array containing each of the domains listed in the hosts.tab
987: file.
988:
989: =cut
990:
991: #-------------------------------------------
1.34 matthew 992: sub get_domains {
993: # The code below was stolen from "The Perl Cookbook", p 102, 1st ed.
994: my @domains;
995: my %seen;
996: foreach (sort values(%Apache::lonnet::hostdom)) {
1.169 www 997: push (@domains,$_) unless $seen{$_}++;
1.34 matthew 998: }
999: return @domains;
1000: }
1.88 www 1001:
1.169 www 1002: # ------------------------------------------
1003:
1004: sub domain_select {
1005: my ($name,$value,$multiple)=@_;
1006: my %domains=map {
1007: $_ => $_.' '.$Apache::lonnet::domaindescription{$_}
1008: } &get_domains;
1009: if ($multiple) {
1010: $domains{''}=&mt('Any domain');
1.191 matthew 1011: return &multiple_select_form($name,$value,4,%domains);
1.169 www 1012: } else {
1013: return &select_form($name,$value,%domains);
1014: }
1015: }
1016:
1017: sub multiple_select_form {
1.191 matthew 1018: my ($name,$value,$size,%hash)=@_;
1.169 www 1019: my %selected = map { $_ => 1 } ref($value)?@{$value}:($value);
1020: my $output='';
1.191 matthew 1021: if (! defined($size)) {
1022: $size = 4;
1023: if (scalar(keys(%hash))<4) {
1024: $size = scalar(keys(%hash));
1025: }
1026: }
1.169 www 1027: $output.="\n<select name='$name' size='$size' multiple='1'>";
1.191 matthew 1028: foreach (sort(keys(%hash))) {
1029: $output.='<option value="'.$_.'" ';
1030: $output.='selected ' if ($selected{$_});
1031: $output.='>'.$hash{$_}."</option>\n";
1.169 www 1032: }
1033: $output.="</select>\n";
1034: return $output;
1035: }
1036:
1.88 www 1037: #-------------------------------------------
1038:
1039: =pod
1040:
1.112 bowersj2 1041: =item * select_form($defdom,$name,%hash)
1.88 www 1042:
1043: Returns a string containing a <select name='$name' size='1'> form to
1044: allow a user to select options from a hash option_name => displayed text.
1045: See lonrights.pm for an example invocation and use.
1046:
1047: =cut
1048:
1049: #-------------------------------------------
1050: sub select_form {
1051: my ($def,$name,%hash) = @_;
1052: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1.128 albertel 1053: my @keys;
1054: if (exists($hash{'select_form_order'})) {
1055: @keys=@{$hash{'select_form_order'}};
1056: } else {
1057: @keys=sort(keys(%hash));
1058: }
1059: foreach (@keys) {
1.88 www 1060: $selectform.="<option value=\"$_\" ".
1061: ($_ eq $def ? 'selected' : '').
1.119 www 1062: ">".&mt($hash{$_})."</option>\n";
1.88 www 1063: }
1064: $selectform.="</select>";
1065: return $selectform;
1066: }
1067:
1.167 www 1068: sub gradeleveldescription {
1069: my $gradelevel=shift;
1070: my %gradelevels=(0 => 'Not specified',
1071: 1 => 'Grade 1',
1072: 2 => 'Grade 2',
1073: 3 => 'Grade 3',
1074: 4 => 'Grade 4',
1075: 5 => 'Grade 5',
1076: 6 => 'Grade 6',
1077: 7 => 'Grade 7',
1078: 8 => 'Grade 8',
1079: 9 => 'Grade 9',
1080: 10 => 'Grade 10',
1081: 11 => 'Grade 11',
1082: 12 => 'Grade 12',
1083: 13 => 'Grade 13',
1084: 14 => '100 Level',
1085: 15 => '200 Level',
1086: 16 => '300 Level',
1087: 17 => '400 Level',
1088: 18 => 'Graduate Level');
1089: return &mt($gradelevels{$gradelevel});
1090: }
1091:
1.163 www 1092: sub select_level_form {
1093: my ($deflevel,$name)=@_;
1094: unless ($deflevel) { $deflevel=0; }
1.167 www 1095: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1096: for (my $i=0; $i<=18; $i++) {
1097: $selectform.="<option value=\"$i\" ".
1098: ($i==$deflevel ? 'selected' : '').
1099: ">".&gradeleveldescription($i)."</option>\n";
1100: }
1101: $selectform.="</select>";
1102: return $selectform;
1.163 www 1103: }
1.167 www 1104:
1.35 matthew 1105: #-------------------------------------------
1106:
1.45 matthew 1107: =pod
1108:
1.112 bowersj2 1109: =item * select_dom_form($defdom,$name,$includeempty)
1.35 matthew 1110:
1111: Returns a string containing a <select name='$name' size='1'> form to
1112: allow a user to select the domain to preform an operation in.
1113: See loncreateuser.pm for an example invocation and use.
1114:
1.90 www 1115: If the $includeempty flag is set, it also includes an empty choice ("no domain
1116: selected");
1117:
1.35 matthew 1118: =cut
1119:
1120: #-------------------------------------------
1.34 matthew 1121: sub select_dom_form {
1.90 www 1122: my ($defdom,$name,$includeempty) = @_;
1.34 matthew 1123: my @domains = get_domains();
1.90 www 1124: if ($includeempty) { @domains=('',@domains); }
1.34 matthew 1125: my $selectdomain = "<select name=\"$name\" size=\"1\">\n";
1126: foreach (@domains) {
1127: $selectdomain.="<option value=\"$_\" ".
1128: ($_ eq $defdom ? 'selected' : '').
1129: ">$_</option>\n";
1130: }
1131: $selectdomain.="</select>";
1132: return $selectdomain;
1133: }
1134:
1.35 matthew 1135: #-------------------------------------------
1136:
1.45 matthew 1137: =pod
1138:
1.112 bowersj2 1139: =item * get_library_servers($domain)
1.35 matthew 1140:
1141: Returns a hash which contains keys like '103l3' and values like
1142: 'kirk.lite.msu.edu'. All of the keys will be for machines in the
1143: given $domain.
1144:
1145: =cut
1146:
1147: #-------------------------------------------
1.52 matthew 1148: sub get_library_servers {
1.33 matthew 1149: my $domain = shift;
1.52 matthew 1150: my %library_servers;
1.33 matthew 1151: foreach (keys(%Apache::lonnet::libserv)) {
1152: if ($Apache::lonnet::hostdom{$_} eq $domain) {
1.52 matthew 1153: $library_servers{$_} = $Apache::lonnet::hostname{$_};
1.33 matthew 1154: }
1155: }
1.52 matthew 1156: return %library_servers;
1.33 matthew 1157: }
1158:
1.35 matthew 1159: #-------------------------------------------
1160:
1.45 matthew 1161: =pod
1162:
1.112 bowersj2 1163: =item * home_server_option_list($domain)
1.35 matthew 1164:
1165: returns a string which contains an <option> list to be used in a
1166: <select> form input. See loncreateuser.pm for an example.
1167:
1168: =cut
1169:
1170: #-------------------------------------------
1.33 matthew 1171: sub home_server_option_list {
1172: my $domain = shift;
1.52 matthew 1173: my %servers = &get_library_servers($domain);
1.33 matthew 1174: my $result = '';
1175: foreach (sort keys(%servers)) {
1176: $result.=
1177: '<option value="'.$_.'">'.$_.' '.$servers{$_}."</option>\n";
1178: }
1179: return $result;
1180: }
1.112 bowersj2 1181:
1182: =pod
1183:
1184: =back
1185:
1186: =cut
1.87 matthew 1187:
1188: ###############################################################
1.112 bowersj2 1189: ## Decoding User Agent ##
1.87 matthew 1190: ###############################################################
1191:
1192: =pod
1193:
1.112 bowersj2 1194: =head1 Decoding the User Agent
1195:
1196: =over 4
1197:
1198: =item * &decode_user_agent()
1.87 matthew 1199:
1200: Inputs: $r
1201:
1202: Outputs:
1203:
1204: =over 4
1205:
1.112 bowersj2 1206: =item * $httpbrowser
1.87 matthew 1207:
1.112 bowersj2 1208: =item * $clientbrowser
1.87 matthew 1209:
1.112 bowersj2 1210: =item * $clientversion
1.87 matthew 1211:
1.112 bowersj2 1212: =item * $clientmathml
1.87 matthew 1213:
1.112 bowersj2 1214: =item * $clientunicode
1.87 matthew 1215:
1.112 bowersj2 1216: =item * $clientos
1.87 matthew 1217:
1218: =back
1219:
1.157 matthew 1220: =back
1221:
1.87 matthew 1222: =cut
1223:
1224: ###############################################################
1225: ###############################################################
1226: sub decode_user_agent {
1227: my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});
1228: my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});
1229: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
1230: my $clientbrowser='unknown';
1231: my $clientversion='0';
1232: my $clientmathml='';
1233: my $clientunicode='0';
1234: for (my $i=0;$i<=$#browsertype;$i++) {
1235: my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
1236: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
1237: $clientbrowser=$bname;
1238: $httpbrowser=~/$vreg/i;
1239: $clientversion=$1;
1240: $clientmathml=($clientversion>=$minv);
1241: $clientunicode=($clientversion>=$univ);
1242: }
1243: }
1244: my $clientos='unknown';
1245: if (($httpbrowser=~/linux/i) ||
1246: ($httpbrowser=~/unix/i) ||
1247: ($httpbrowser=~/ux/i) ||
1248: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
1249: if (($httpbrowser=~/vax/i) ||
1250: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
1251: if ($httpbrowser=~/next/i) { $clientos='next'; }
1252: if (($httpbrowser=~/mac/i) ||
1253: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
1254: if ($httpbrowser=~/win/i) { $clientos='win'; }
1255: if ($httpbrowser=~/embed/i) { $clientos='pda'; }
1256: return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
1257: $clientunicode,$clientos,);
1258: }
1259:
1.32 matthew 1260: ###############################################################
1261: ## Authentication changing form generation subroutines ##
1262: ###############################################################
1263: ##
1264: ## All of the authform_xxxxxxx subroutines take their inputs in a
1265: ## hash, and have reasonable default values.
1266: ##
1267: ## formname = the name given in the <form> tag.
1.35 matthew 1268: #-------------------------------------------
1269:
1.45 matthew 1270: =pod
1271:
1.112 bowersj2 1272: =head1 Authentication Routines
1273:
1274: =over 4
1275:
1276: =item * authform_xxxxxx
1.35 matthew 1277:
1278: The authform_xxxxxx subroutines provide javascript and html forms which
1279: handle some of the conveniences required for authentication forms.
1280: This is not an optimal method, but it works.
1281:
1282: See loncreateuser.pm for invocation and use examples.
1283:
1284: =over 4
1285:
1.112 bowersj2 1286: =item * authform_header
1.35 matthew 1287:
1.112 bowersj2 1288: =item * authform_authorwarning
1.35 matthew 1289:
1.112 bowersj2 1290: =item * authform_nochange
1.35 matthew 1291:
1.112 bowersj2 1292: =item * authform_kerberos
1.35 matthew 1293:
1.112 bowersj2 1294: =item * authform_internal
1.35 matthew 1295:
1.112 bowersj2 1296: =item * authform_filesystem
1.35 matthew 1297:
1298: =back
1299:
1.157 matthew 1300: =back
1301:
1.35 matthew 1302: =cut
1303:
1304: #-------------------------------------------
1.32 matthew 1305: sub authform_header{
1306: my %in = (
1307: formname => 'cu',
1.80 albertel 1308: kerb_def_dom => '',
1.32 matthew 1309: @_,
1310: );
1311: $in{'formname'} = 'document.' . $in{'formname'};
1312: my $result='';
1.80 albertel 1313:
1314: #---------------------------------------------- Code for upper case translation
1315: my $Javascript_toUpperCase;
1316: unless ($in{kerb_def_dom}) {
1317: $Javascript_toUpperCase =<<"END";
1318: switch (choice) {
1319: case 'krb': currentform.elements[choicearg].value =
1320: currentform.elements[choicearg].value.toUpperCase();
1321: break;
1322: default:
1323: }
1324: END
1325: } else {
1326: $Javascript_toUpperCase = "";
1327: }
1328:
1.165 raeburn 1329: my $radioval = "'nochange'";
1.174 matthew 1330: if (exists($in{'curr_authtype'}) &&
1331: defined($in{'curr_authtype'}) &&
1332: $in{'curr_authtype'} ne '') {
1333: $radioval = "'$in{'curr_authtype'}arg'";
1334: }
1.165 raeburn 1335: my $argfield = 'null';
1336: if ( grep/^mode$/,(keys %in) ) {
1337: if ($in{'mode'} eq 'modifycourse') {
1338: if ( grep/^curr_authtype$/,(keys %in) ) {
1339: $radioval = "'$in{'curr_authtype'}'";
1340: }
1341: if ( grep/^curr_autharg$/,(keys %in) ) {
1342: unless ($in{'curr_autharg'} eq '') {
1343: $argfield = "'$in{'curr_autharg'}'";
1344: }
1345: }
1346: }
1347: }
1348:
1.32 matthew 1349: $result.=<<"END";
1350: var current = new Object();
1.165 raeburn 1351: current.radiovalue = $radioval;
1352: current.argfield = $argfield;
1.32 matthew 1353:
1354: function changed_radio(choice,currentform) {
1355: var choicearg = choice + 'arg';
1356: // If a radio button in changed, we need to change the argfield
1357: if (current.radiovalue != choice) {
1358: current.radiovalue = choice;
1359: if (current.argfield != null) {
1360: currentform.elements[current.argfield].value = '';
1361: }
1362: if (choice == 'nochange') {
1363: current.argfield = null;
1364: } else {
1365: current.argfield = choicearg;
1366: switch(choice) {
1367: case 'krb':
1368: currentform.elements[current.argfield].value =
1369: "$in{'kerb_def_dom'}";
1370: break;
1371: default:
1372: break;
1373: }
1374: }
1375: }
1376: return;
1377: }
1.22 www 1378:
1.32 matthew 1379: function changed_text(choice,currentform) {
1380: var choicearg = choice + 'arg';
1381: if (currentform.elements[choicearg].value !='') {
1.80 albertel 1382: $Javascript_toUpperCase
1.32 matthew 1383: // clear old field
1384: if ((current.argfield != choicearg) && (current.argfield != null)) {
1385: currentform.elements[current.argfield].value = '';
1386: }
1387: current.argfield = choicearg;
1388: }
1389: set_auth_radio_buttons(choice,currentform);
1390: return;
1.20 www 1391: }
1.32 matthew 1392:
1393: function set_auth_radio_buttons(newvalue,currentform) {
1394: var i=0;
1395: while (i < currentform.login.length) {
1396: if (currentform.login[i].value == newvalue) { break; }
1397: i++;
1398: }
1399: if (i == currentform.login.length) {
1400: return;
1401: }
1402: current.radiovalue = newvalue;
1403: currentform.login[i].checked = true;
1404: return;
1405: }
1406: END
1407: return $result;
1408: }
1409:
1410: sub authform_authorwarning{
1411: my $result='';
1.144 matthew 1412: $result='<i>'.
1413: &mt('As a general rule, only authors or co-authors should be '.
1414: 'filesystem authenticated '.
1415: '(which allows access to the server filesystem).')."</i>\n";
1.32 matthew 1416: return $result;
1417: }
1418:
1419: sub authform_nochange{
1420: my %in = (
1421: formname => 'document.cu',
1422: kerb_def_dom => 'MSU.EDU',
1423: @_,
1424: );
1.144 matthew 1425: my $result = &mt('[_1] Do not change login data',
1426: '<input type="radio" name="login" value="nochange" '.
1427: 'checked="checked" onclick="'.
1428: "javascript:changed_radio('nochange',$in{'formname'});".'" />');
1.32 matthew 1429: return $result;
1430: }
1431:
1432: sub authform_kerberos{
1433: my %in = (
1434: formname => 'document.cu',
1435: kerb_def_dom => 'MSU.EDU',
1.80 albertel 1436: kerb_def_auth => 'krb4',
1.32 matthew 1437: @_,
1438: );
1.165 raeburn 1439: my ($check4,$check5,$krbarg);
1.80 albertel 1440: if ($in{'kerb_def_auth'} eq 'krb5') {
1441: $check5 = " checked=\"on\"";
1442: } else {
1443: $check4 = " checked=\"on\"";
1444: }
1.165 raeburn 1445: $krbarg = $in{'kerb_def_dom'};
1446:
1447: my $krbcheck = "";
1448: if ( grep/^curr_authtype$/,(keys %in) ) {
1449: if ($in{'curr_authtype'} =~ m/^krb/) {
1450: $krbcheck = " checked=\"on\"";
1451: if ( grep/^curr_autharg$/,(keys %in) ) {
1452: $krbarg = $in{'curr_autharg'};
1453: }
1454: }
1455: }
1456:
1.144 matthew 1457: my $jscall = "javascript:changed_radio('krb',$in{'formname'});";
1458: my $result .= &mt
1459: ('[_1] Kerberos authenticated with domain [_2] '.
1460: '[_3] Version 4 [_4] Version 5',
1461: '<input type="radio" name="login" value="krb" '.
1.165 raeburn 1462: 'onclick="'.$jscall.'" onchange="'.$jscall.'"'.$krbcheck.' />',
1.144 matthew 1463: '<input type="text" size="10" name="krbarg" '.
1.165 raeburn 1464: 'value="'.$krbarg.'" '.
1.144 matthew 1465: 'onchange="'.$jscall.'" />',
1466: '<input type="radio" name="krbver" value="4" '.$check4.' />',
1467: '<input type="radio" name="krbver" value="5" '.$check5.' />');
1.32 matthew 1468: return $result;
1469: }
1470:
1471: sub authform_internal{
1472: my %args = (
1473: formname => 'document.cu',
1474: kerb_def_dom => 'MSU.EDU',
1475: @_,
1476: );
1.165 raeburn 1477:
1478: my $intcheck = "";
1479: my $intarg = 'value=""';
1480: if ( grep/^curr_authtype$/,(keys %args) ) {
1481: if ($args{'curr_authtype'} eq 'int') {
1482: $intcheck = " checked=\"on\"";
1483: if ( grep/^curr_autharg$/,(keys %args) ) {
1484: $intarg = "value=\"$args{'curr_autharg'}\"";
1485: }
1486: }
1487: }
1488:
1.144 matthew 1489: my $jscall = "javascript:changed_radio('int',$args{'formname'});";
1490: my $result.=&mt
1491: ('[_1] Internally authenticated (with initial password [_2])',
1.165 raeburn 1492: '<input type="radio" name="login" value="int" '.$intcheck.
1493: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1494: '<input type="text" size="10" name="intarg" '.$intarg.
1495: ' onchange="'.$jscall.'" />');
1.32 matthew 1496: return $result;
1497: }
1498:
1499: sub authform_local{
1500: my %in = (
1501: formname => 'document.cu',
1502: kerb_def_dom => 'MSU.EDU',
1503: @_,
1504: );
1.165 raeburn 1505:
1506: my $loccheck = "";
1507: my $locarg = 'value=""';
1508: if ( grep/^curr_authtype$/,(keys %in) ) {
1509: if ($in{'curr_authtype'} eq 'loc') {
1510: $loccheck = " checked=\"on\"";
1511: if ( grep/^curr_autharg$/,(keys %in) ) {
1512: $locarg = "value=\"$in{'curr_autharg'}\"";
1513: }
1514: }
1515: }
1516:
1.144 matthew 1517: my $jscall = "javascript:changed_radio('loc',$in{'formname'});";
1.160 matthew 1518: my $result.=&mt('[_1] Local Authentication with argument [_2]',
1.165 raeburn 1519: '<input type="radio" name="login" value="loc" '.$loccheck.
1520: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1521: '<input type="text" size="10" name="locarg" '.$locarg.
1522: ' onchange="'.$jscall.'" />');
1.32 matthew 1523: return $result;
1524: }
1525:
1526: sub authform_filesystem{
1527: my %in = (
1528: formname => 'document.cu',
1529: kerb_def_dom => 'MSU.EDU',
1530: @_,
1531: );
1.144 matthew 1532: my $jscall = "javascript:changed_radio('fsys',$in{'formname'});";
1533: my $result.= &mt
1534: ('[_1] Filesystem Authenticated (with initial password [_2])',
1535: '<input type="radio" name="login" value="fsys" '.
1536: 'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1537: '<input type="text" size="10" name="fsysarg" value="" '.
1538: 'onchange="'.$jscall.'" />');
1.32 matthew 1539: return $result;
1540: }
1541:
1.80 albertel 1542: ###############################################################
1543: ## Get Authentication Defaults for Domain ##
1544: ###############################################################
1545:
1546: =pod
1547:
1.112 bowersj2 1548: =head1 Domains and Authentication
1549:
1550: Returns default authentication type and an associated argument as
1551: listed in file 'domain.tab'.
1552:
1553: =over 4
1554:
1555: =item * get_auth_defaults
1.80 albertel 1556:
1557: get_auth_defaults($target_domain) returns the default authentication
1558: type and an associated argument (initial password or a kerberos domain).
1559: These values are stored in lonTabs/domain.tab
1560:
1561: ($def_auth, $def_arg) = &get_auth_defaults($target_domain);
1562:
1563: If target_domain is not found in domain.tab, returns nothing ('').
1564:
1565: =cut
1566:
1567: #-------------------------------------------
1568: sub get_auth_defaults {
1569: my $domain=shift;
1570: return ($Apache::lonnet::domain_auth_def{$domain},$Apache::lonnet::domain_auth_arg_def{$domain});
1571: }
1572: ###############################################################
1573: ## End Get Authentication Defaults for Domain ##
1574: ###############################################################
1575:
1576: ###############################################################
1577: ## Get Kerberos Defaults for Domain ##
1578: ###############################################################
1579: ##
1580: ## Returns default kerberos version and an associated argument
1581: ## as listed in file domain.tab. If not listed, provides
1582: ## appropriate default domain and kerberos version.
1583: ##
1584: #-------------------------------------------
1585:
1586: =pod
1587:
1.112 bowersj2 1588: =item * get_kerberos_defaults
1.80 albertel 1589:
1590: get_kerberos_defaults($target_domain) returns the default kerberos
1591: version and domain. If not found in domain.tabs, it defaults to
1592: version 4 and the domain of the server.
1593:
1594: ($def_version, $def_krb_domain) = &get_kerberos_defaults($target_domain);
1595:
1596: =cut
1597:
1598: #-------------------------------------------
1599: sub get_kerberos_defaults {
1600: my $domain=shift;
1601: my ($krbdef,$krbdefdom) =
1602: &Apache::loncommon::get_auth_defaults($domain);
1603: unless ($krbdef =~/^krb/ && $krbdefdom) {
1604: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
1605: my $krbdefdom=$1;
1606: $krbdefdom=~tr/a-z/A-Z/;
1607: $krbdef = "krb4";
1608: }
1609: return ($krbdef,$krbdefdom);
1610: }
1.112 bowersj2 1611:
1612: =pod
1613:
1614: =back
1615:
1616: =cut
1.32 matthew 1617:
1.46 matthew 1618: ###############################################################
1619: ## Thesaurus Functions ##
1620: ###############################################################
1.20 www 1621:
1.46 matthew 1622: =pod
1.20 www 1623:
1.112 bowersj2 1624: =head1 Thesaurus Functions
1625:
1626: =over 4
1627:
1628: =item * initialize_keywords
1.46 matthew 1629:
1630: Initializes the package variable %Keywords if it is empty. Uses the
1631: package variable $thesaurus_db_file.
1632:
1633: =cut
1634:
1635: ###################################################
1636:
1637: sub initialize_keywords {
1638: return 1 if (scalar keys(%Keywords));
1639: # If we are here, %Keywords is empty, so fill it up
1640: # Make sure the file we need exists...
1641: if (! -e $thesaurus_db_file) {
1642: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file".
1643: " failed because it does not exist");
1644: return 0;
1645: }
1646: # Set up the hash as a database
1647: my %thesaurus_db;
1648: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1649: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1650: &Apache::lonnet::logthis("Could not tie \%thesaurus_db to ".
1651: $thesaurus_db_file);
1652: return 0;
1653: }
1654: # Get the average number of appearances of a word.
1655: my $avecount = $thesaurus_db{'average.count'};
1656: # Put keywords (those that appear > average) into %Keywords
1657: while (my ($word,$data)=each (%thesaurus_db)) {
1658: my ($count,undef) = split /:/,$data;
1659: $Keywords{$word}++ if ($count > $avecount);
1660: }
1661: untie %thesaurus_db;
1662: # Remove special values from %Keywords.
1663: foreach ('total.count','average.count') {
1664: delete($Keywords{$_}) if (exists($Keywords{$_}));
1665: }
1666: return 1;
1667: }
1668:
1669: ###################################################
1670:
1671: =pod
1672:
1.112 bowersj2 1673: =item * keyword($word)
1.46 matthew 1674:
1675: Returns true if $word is a keyword. A keyword is a word that appears more
1676: than the average number of times in the thesaurus database. Calls
1677: &initialize_keywords
1678:
1679: =cut
1680:
1681: ###################################################
1.20 www 1682:
1683: sub keyword {
1.46 matthew 1684: return if (!&initialize_keywords());
1685: my $word=lc(shift());
1686: $word=~s/\W//g;
1687: return exists($Keywords{$word});
1.20 www 1688: }
1.46 matthew 1689:
1690: ###############################################################
1691:
1692: =pod
1.20 www 1693:
1.112 bowersj2 1694: =item * get_related_words
1.46 matthew 1695:
1.160 matthew 1696: Look up a word in the thesaurus. Takes a scalar argument and returns
1.46 matthew 1697: an array of words. If the keyword is not in the thesaurus, an empty array
1698: will be returned. The order of the words returned is determined by the
1699: database which holds them.
1700:
1701: Uses global $thesaurus_db_file.
1702:
1703: =cut
1704:
1705: ###############################################################
1706: sub get_related_words {
1707: my $keyword = shift;
1708: my %thesaurus_db;
1709: if (! -e $thesaurus_db_file) {
1710: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file ".
1711: "failed because the file does not exist");
1712: return ();
1713: }
1714: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1715: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1716: return ();
1717: }
1718: my @Words=();
1719: if (exists($thesaurus_db{$keyword})) {
1720: $_ = $thesaurus_db{$keyword};
1721: (undef,@Words) = split/:/; # The first element is the number of times
1722: # the word appears. We do not need it now.
1723: for (my $i=0;$i<=$#Words;$i++) {
1724: ($Words[$i],undef)= split/\,/,$Words[$i];
1.20 www 1725: }
1726: }
1.46 matthew 1727: untie %thesaurus_db;
1728: return @Words;
1.14 harris41 1729: }
1.46 matthew 1730:
1.112 bowersj2 1731: =pod
1732:
1733: =back
1734:
1735: =cut
1.61 www 1736:
1737: # -------------------------------------------------------------- Plaintext name
1.81 albertel 1738: =pod
1739:
1.112 bowersj2 1740: =head1 User Name Functions
1741:
1742: =over 4
1743:
1744: =item * plainname($uname,$udom)
1.81 albertel 1745:
1.112 bowersj2 1746: Takes a users logon name and returns it as a string in
1747: "first middle last generation" form
1.81 albertel 1748:
1749: =cut
1.61 www 1750:
1.81 albertel 1751: ###############################################################
1.61 www 1752: sub plainname {
1753: my ($uname,$udom)=@_;
1754: my %names=&Apache::lonnet::get('environment',
1755: ['firstname','middlename','lastname','generation'],
1756: $udom,$uname);
1.62 www 1757: my $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
1.61 www 1758: $names{'lastname'}.' '.$names{'generation'};
1.62 www 1759: $name=~s/\s+$//;
1760: $name=~s/\s+/ /g;
1.190 albertel 1761: if ($name !~ /\S/) { $name=$uname.'@'.$udom; }
1.62 www 1762: return $name;
1.61 www 1763: }
1.66 www 1764:
1765: # -------------------------------------------------------------------- Nickname
1.81 albertel 1766: =pod
1767:
1.112 bowersj2 1768: =item * nickname($uname,$udom)
1.81 albertel 1769:
1770: Gets a users name and returns it as a string as
1771:
1772: ""nickname""
1.66 www 1773:
1.81 albertel 1774: if the user has a nickname or
1775:
1776: "first middle last generation"
1777:
1778: if the user does not
1779:
1780: =cut
1.66 www 1781:
1782: sub nickname {
1783: my ($uname,$udom)=@_;
1.212 albertel 1784: my %names;
1785: if ($uname eq $ENV{'user.name'} &&
1786: $udom eq $ENV{'user.domain'}) {
1787: %names=('nickname' => $ENV{'environment.nickname'} ,
1788: 'firstname' => $ENV{'environment.firstname'} ,
1789: 'middlename' => $ENV{'environment.middlename'},
1790: 'lastname' => $ENV{'environment.lastname'} ,
1791: 'generation' => $ENV{'environment.generation'});
1792: } else {
1793: %names=&Apache::lonnet::get('environment',
1794: ['nickname','firstname','middlename',
1795: 'lastname','generation'],$udom,$uname);
1796: }
1.68 albertel 1797: my $name=$names{'nickname'};
1.66 www 1798: if ($name) {
1799: $name='"'.$name.'"';
1800: } else {
1801: $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
1802: $names{'lastname'}.' '.$names{'generation'};
1803: $name=~s/\s+$//;
1804: $name=~s/\s+/ /g;
1805: }
1806: return $name;
1807: }
1808:
1.61 www 1809:
1810: # ------------------------------------------------------------------ Screenname
1.81 albertel 1811:
1812: =pod
1813:
1.112 bowersj2 1814: =item * screenname($uname,$udom)
1.81 albertel 1815:
1816: Gets a users screenname and returns it as a string
1817:
1818: =cut
1.61 www 1819:
1820: sub screenname {
1821: my ($uname,$udom)=@_;
1.212 albertel 1822: if ($uname eq $ENV{'user.name'} &&
1823: $udom eq $ENV{'user.domain'}) {return $ENV{'environment.screenname'};}
1824: my %names=&Apache::lonnet::get('environment',['screenname'],$udom,$uname);
1.68 albertel 1825: return $names{'screenname'};
1.62 www 1826: }
1827:
1.212 albertel 1828:
1.62 www 1829: # ------------------------------------------------------------- Message Wrapper
1830:
1831: sub messagewrapper {
1.200 matthew 1832: my ($link,$username,$domain)=@_;
1.62 www 1833: return
1.200 matthew 1834: '<a href="/adm/email?compose=individual&'.
1835: 'recname='.$username.'&recdom='.$domain.'" '.
1836: 'title="'.&mt('Send message').'">'.$link.'</a>';
1.74 www 1837: }
1838: # --------------------------------------------------------------- Notes Wrapper
1839:
1840: sub noteswrapper {
1841: my ($link,$un,$do)=@_;
1842: return
1843: "<a href='/adm/email?recordftf=retrieve&recname=$un&recdom=$do'>$link</a>";
1.62 www 1844: }
1845: # ------------------------------------------------------------- Aboutme Wrapper
1846:
1847: sub aboutmewrapper {
1.166 www 1848: my ($link,$username,$domain,$target)=@_;
1.205 www 1849: return '<a href="/adm/'.$domain.'/'.$username.'/aboutme"'.
1.200 matthew 1850: ($target?' target="$target"':'').' title="'.&mt('View this users personal page').'">'.$link.'</a>';
1.62 www 1851: }
1852:
1853: # ------------------------------------------------------------ Syllabus Wrapper
1854:
1855:
1856: sub syllabuswrapper {
1.109 matthew 1857: my ($linktext,$coursedir,$domain,$fontcolor)=@_;
1858: if ($fontcolor) {
1859: $linktext='<font color="'.$fontcolor.'">'.$linktext.'</font>';
1860: }
1.208 matthew 1861: return qq{<a href="/public/$domain/$coursedir/syllabus">$linktext</a>};
1.61 www 1862: }
1.14 harris41 1863:
1.208 matthew 1864: sub track_student_link {
1865: my ($linktext,$sname,$sdom,$target) = @_;
1866: my $link ="/adm/trackstudent";
1867: my $title = 'View recent activity';
1868: if (defined($sname) && $sname !~ /^\s*$/ &&
1869: defined($sdom) && $sdom !~ /^\s*$/) {
1870: $link .= "?selected_student=$sname:$sdom";
1871: $title .= ' of this student';
1872: }
1873: if (defined($target) && $target !~ /^\s*$/) {
1874: $target = qq{target="$target"};
1875: } else {
1876: $target = '';
1877: }
1878: return qq{<a href="$link" title="$title" $target>$linktext</a>};
1879: }
1880:
1881:
1882:
1.112 bowersj2 1883: =pod
1884:
1885: =back
1886:
1887: =head1 Access .tab File Data
1888:
1889: =over 4
1890:
1891: =item * languageids()
1892:
1893: returns list of all language ids
1894:
1895: =cut
1896:
1.14 harris41 1897: sub languageids {
1.16 harris41 1898: return sort(keys(%language));
1.14 harris41 1899: }
1900:
1.112 bowersj2 1901: =pod
1902:
1903: =item * languagedescription()
1904:
1905: returns description of a specified language id
1906:
1907: =cut
1908:
1.14 harris41 1909: sub languagedescription {
1.125 www 1910: my $code=shift;
1911: return ($supported_language{$code}?'* ':'').
1912: $language{$code}.
1.126 www 1913: ($supported_language{$code}?' ('.&mt('interface available').')':'');
1.145 www 1914: }
1915:
1916: sub plainlanguagedescription {
1917: my $code=shift;
1918: return $language{$code};
1919: }
1920:
1921: sub supportedlanguagecode {
1922: my $code=shift;
1923: return $supported_language{$code};
1.97 www 1924: }
1925:
1.112 bowersj2 1926: =pod
1927:
1928: =item * copyrightids()
1929:
1930: returns list of all copyrights
1931:
1932: =cut
1933:
1934: sub copyrightids {
1935: return sort(keys(%cprtag));
1936: }
1937:
1938: =pod
1939:
1940: =item * copyrightdescription()
1941:
1942: returns description of a specified copyright id
1943:
1944: =cut
1945:
1946: sub copyrightdescription {
1.166 www 1947: return &mt($cprtag{shift(@_)});
1.112 bowersj2 1948: }
1.197 matthew 1949:
1950: =pod
1951:
1.192 taceyjo1 1952: =item * source_copyrightids()
1953:
1954: returns list of all source copyrights
1955:
1956: =cut
1957:
1958: sub source_copyrightids {
1959: return sort(keys(%scprtag));
1960: }
1961:
1962: =pod
1963:
1964: =item * source_copyrightdescription()
1965:
1966: returns description of a specified source copyright id
1967:
1968: =cut
1969:
1970: sub source_copyrightdescription {
1971: return &mt($scprtag{shift(@_)});
1972: }
1.112 bowersj2 1973:
1974: =pod
1975:
1976: =item * filecategories()
1977:
1978: returns list of all file categories
1979:
1980: =cut
1981:
1982: sub filecategories {
1983: return sort(keys(%category_extensions));
1984: }
1985:
1986: =pod
1987:
1988: =item * filecategorytypes()
1989:
1990: returns list of file types belonging to a given file
1991: category
1992:
1993: =cut
1994:
1995: sub filecategorytypes {
1996: return @{$category_extensions{lc($_[0])}};
1997: }
1998:
1999: =pod
2000:
2001: =item * fileembstyle()
2002:
2003: returns embedding style for a specified file type
2004:
2005: =cut
2006:
2007: sub fileembstyle {
2008: return $fe{lc(shift(@_))};
1.169 www 2009: }
2010:
2011:
2012: sub filecategoryselect {
2013: my ($name,$value)=@_;
1.189 matthew 2014: return &select_form($value,$name,
1.169 www 2015: '' => &mt('Any category'),
2016: map { $_,$_ } sort(keys(%category_extensions)));
1.112 bowersj2 2017: }
2018:
2019: =pod
2020:
2021: =item * filedescription()
2022:
2023: returns description for a specified file type
2024:
2025: =cut
2026:
2027: sub filedescription {
1.188 matthew 2028: my $file_description = $fd{lc(shift())};
2029: $file_description =~ s:([\[\]]):~$1:g;
2030: return &mt($file_description);
1.112 bowersj2 2031: }
2032:
2033: =pod
2034:
2035: =item * filedescriptionex()
2036:
2037: returns description for a specified file type with
2038: extra formatting
2039:
2040: =cut
2041:
2042: sub filedescriptionex {
2043: my $ex=shift;
1.188 matthew 2044: my $file_description = $fd{lc($ex)};
2045: $file_description =~ s:([\[\]]):~$1:g;
2046: return '.'.$ex.' '.&mt($file_description);
1.112 bowersj2 2047: }
2048:
2049: # End of .tab access
2050: =pod
2051:
2052: =back
2053:
2054: =cut
2055:
2056: # ------------------------------------------------------------------ File Types
2057: sub fileextensions {
2058: return sort(keys(%fe));
2059: }
2060:
1.97 www 2061: # ----------------------------------------------------------- Display Languages
2062: # returns a hash with all desired display languages
2063: #
2064:
2065: sub display_languages {
2066: my %languages=();
1.118 www 2067: foreach (&preferred_languages()) {
2068: $languages{$_}=1;
1.97 www 2069: }
2070: &get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']);
2071: if ($ENV{'form.displaylanguage'}) {
2072: foreach (split(/\s*(\,|\;|\:)\s*/,$ENV{'form.displaylanguage'})) {
2073: $languages{$_}=1;
2074: }
2075: }
2076: return %languages;
1.14 harris41 2077: }
2078:
1.117 www 2079: sub preferred_languages {
2080: my @languages=();
2081: if ($ENV{'course.'.$ENV{'request.course.id'}.'.languages'}) {
2082: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,
2083: $ENV{'course.'.$ENV{'request.course.id'}.'.languages'}));
1.177 www 2084: }
2085: if ($ENV{'environment.languages'}) {
2086: @languages=split(/\s*(\,|\;|\:)\s*/,$ENV{'environment.languages'});
1.118 www 2087: }
1.162 www 2088: my $browser=(split(/\;/,$ENV{'HTTP_ACCEPT_LANGUAGE'}))[0];
2089: if ($browser) {
2090: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$browser));
2091: }
1.118 www 2092: if ($Apache::lonnet::domain_lang_def{$ENV{'user.domain'}}) {
2093: @languages=(@languages,
2094: $Apache::lonnet::domain_lang_def{$ENV{'user.domain'}});
2095: }
2096: if ($Apache::lonnet::domain_lang_def{$ENV{'request.role.domain'}}) {
2097: @languages=(@languages,
2098: $Apache::lonnet::domain_lang_def{$ENV{'request.role.domain'}});
2099: }
2100: if ($Apache::lonnet::domain_lang_def{
2101: $Apache::lonnet::perlvar{'lonDefDomain'}}) {
2102: @languages=(@languages,
2103: $Apache::lonnet::domain_lang_def{
2104: $Apache::lonnet::perlvar{'lonDefDomain'}});
2105: }
2106: # turn "en-ca" into "en-ca,en"
2107: my @genlanguages;
2108: foreach (@languages) {
2109: unless ($_=~/\w/) { next; }
2110: push (@genlanguages,$_);
2111: if ($_=~/(\-|\_)/) {
2112: push (@genlanguages,(split(/(\-|\_)/,$_))[0]);
2113: }
2114: }
2115: return @genlanguages;
1.117 www 2116: }
2117:
1.112 bowersj2 2118: ###############################################################
2119: ## Student Answer Attempts ##
2120: ###############################################################
2121:
2122: =pod
2123:
2124: =head1 Alternate Problem Views
2125:
2126: =over 4
2127:
2128: =item * get_previous_attempt($symb, $username, $domain, $course,
2129: $getattempt, $regexp, $gradesub)
2130:
2131: Return string with previous attempt on problem. Arguments:
2132:
2133: =over 4
2134:
2135: =item * $symb: Problem, including path
2136:
2137: =item * $username: username of the desired student
2138:
2139: =item * $domain: domain of the desired student
1.14 harris41 2140:
1.112 bowersj2 2141: =item * $course: Course ID
1.14 harris41 2142:
1.112 bowersj2 2143: =item * $getattempt: Leave blank for all attempts, otherwise put
2144: something
1.14 harris41 2145:
1.112 bowersj2 2146: =item * $regexp: if string matches this regexp, the string will be
2147: sent to $gradesub
1.14 harris41 2148:
1.112 bowersj2 2149: =item * $gradesub: routine that processes the string if it matches $regexp
1.14 harris41 2150:
1.112 bowersj2 2151: =back
1.14 harris41 2152:
1.112 bowersj2 2153: The output string is a table containing all desired attempts, if any.
1.16 harris41 2154:
1.112 bowersj2 2155: =cut
1.1 albertel 2156:
2157: sub get_previous_attempt {
1.43 ng 2158: my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub)=@_;
1.1 albertel 2159: my $prevattempts='';
1.43 ng 2160: no strict 'refs';
1.1 albertel 2161: if ($symb) {
1.3 albertel 2162: my (%returnhash)=
2163: &Apache::lonnet::restore($symb,$course,$domain,$username);
1.1 albertel 2164: if ($returnhash{'version'}) {
2165: my %lasthash=();
2166: my $version;
2167: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.19 harris41 2168: foreach (sort(split(/\:/,$returnhash{$version.':keys'}))) {
1.1 albertel 2169: $lasthash{$_}=$returnhash{$version.':'.$_};
1.19 harris41 2170: }
1.1 albertel 2171: }
1.43 ng 2172: $prevattempts='<table border="0" width="100%"><tr><td bgcolor="#777777">';
1.40 ng 2173: $prevattempts.='<table border="0" width="100%"><tr bgcolor="#e6ffff"><td>History</td>';
1.16 harris41 2174: foreach (sort(keys %lasthash)) {
1.31 albertel 2175: my ($ign,@parts) = split(/\./,$_);
1.41 ng 2176: if ($#parts > 0) {
1.31 albertel 2177: my $data=$parts[-1];
2178: pop(@parts);
1.40 ng 2179: $prevattempts.='<td>Part '.join('.',@parts).'<br />'.$data.' </td>';
1.31 albertel 2180: } else {
1.41 ng 2181: if ($#parts == 0) {
2182: $prevattempts.='<th>'.$parts[0].'</th>';
2183: } else {
2184: $prevattempts.='<th>'.$ign.'</th>';
2185: }
1.31 albertel 2186: }
1.16 harris41 2187: }
1.40 ng 2188: if ($getattempt eq '') {
2189: for ($version=1;$version<=$returnhash{'version'};$version++) {
2190: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Transaction '.$version.'</td>';
2191: foreach (sort(keys %lasthash)) {
2192: my $value;
2193: if ($_ =~ /timestamp/) {
2194: $value=scalar(localtime($returnhash{$version.':'.$_}));
2195: } else {
2196: $value=$returnhash{$version.':'.$_};
2197: }
1.142 albertel 2198: $prevattempts.='<td>'.&Apache::lonnet::unescape($value).' </td>';
1.40 ng 2199: }
2200: }
1.1 albertel 2201: }
1.40 ng 2202: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Current</td>';
1.16 harris41 2203: foreach (sort(keys %lasthash)) {
1.5 albertel 2204: my $value;
2205: if ($_ =~ /timestamp/) {
2206: $value=scalar(localtime($lasthash{$_}));
2207: } else {
2208: $value=$lasthash{$_};
2209: }
1.142 albertel 2210: $value=&Apache::lonnet::unescape($value);
1.49 ng 2211: if ($_ =~/$regexp$/ && (defined &$gradesub)) {$value = &$gradesub($value)}
1.40 ng 2212: $prevattempts.='<td>'.$value.' </td>';
1.16 harris41 2213: }
1.40 ng 2214: $prevattempts.='</tr></table></td></tr></table>';
1.1 albertel 2215: } else {
2216: $prevattempts='Nothing submitted - no attempts.';
2217: }
2218: } else {
2219: $prevattempts='No data.';
2220: }
1.10 albertel 2221: }
2222:
1.107 albertel 2223: sub relative_to_absolute {
2224: my ($url,$output)=@_;
2225: my $parser=HTML::TokeParser->new(\$output);
2226: my $token;
2227: my $thisdir=$url;
2228: my @rlinks=();
2229: while ($token=$parser->get_token) {
2230: if ($token->[0] eq 'S') {
2231: if ($token->[1] eq 'a') {
2232: if ($token->[2]->{'href'}) {
2233: $rlinks[$#rlinks+1]=$token->[2]->{'href'};
2234: }
2235: } elsif ($token->[1] eq 'img' || $token->[1] eq 'embed' ) {
2236: $rlinks[$#rlinks+1]=$token->[2]->{'src'};
2237: } elsif ($token->[1] eq 'base') {
2238: $thisdir=$token->[2]->{'href'};
2239: }
2240: }
2241: }
2242: $thisdir=~s-/[^/]*$--;
2243: foreach (@rlinks) {
2244: unless (($_=~/^http:\/\//i) ||
2245: ($_=~/^\//) ||
2246: ($_=~/^javascript:/i) ||
2247: ($_=~/^mailto:/i) ||
2248: ($_=~/^\#/)) {
2249: my $newlocation=&Apache::lonnet::hreflocation($thisdir,$_);
2250: $output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/;
2251: }
2252: }
2253: # -------------------------------------------------- Deal with Applet codebases
2254: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
2255: return $output;
2256: }
2257:
1.112 bowersj2 2258: =pod
2259:
2260: =item * get_student_view
2261:
2262: show a snapshot of what student was looking at
2263:
2264: =cut
2265:
1.10 albertel 2266: sub get_student_view {
1.186 albertel 2267: my ($symb,$username,$domain,$courseid,$target,$moreenv) = @_;
1.114 www 2268: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2269: my (%form);
1.10 albertel 2270: my @elements=('symb','courseid','domain','username');
2271: foreach my $element (@elements) {
1.186 albertel 2272: $form{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2273: }
1.186 albertel 2274: if (defined($moreenv)) {
2275: %form=(%form,%{$moreenv});
2276: }
2277: if ($target eq 'tex') {$form{'grade_target'} = 'tex';}
1.107 albertel 2278: $feedurl=&Apache::lonnet::clutter($feedurl);
1.186 albertel 2279: my $userview=&Apache::lonnet::ssi_body($feedurl,%form);
1.11 albertel 2280: $userview=~s/\<body[^\>]*\>//gi;
2281: $userview=~s/\<\/body\>//gi;
2282: $userview=~s/\<html\>//gi;
2283: $userview=~s/\<\/html\>//gi;
2284: $userview=~s/\<head\>//gi;
2285: $userview=~s/\<\/head\>//gi;
2286: $userview=~s/action\s*\=/would_be_action\=/gi;
1.107 albertel 2287: $userview=&relative_to_absolute($feedurl,$userview);
1.11 albertel 2288: return $userview;
2289: }
2290:
1.112 bowersj2 2291: =pod
2292:
2293: =item * get_student_answers()
2294:
2295: show a snapshot of how student was answering problem
2296:
2297: =cut
2298:
1.11 albertel 2299: sub get_student_answers {
1.100 sakharuk 2300: my ($symb,$username,$domain,$courseid,%form) = @_;
1.114 www 2301: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2302: my (%moreenv);
1.11 albertel 2303: my @elements=('symb','courseid','domain','username');
2304: foreach my $element (@elements) {
1.186 albertel 2305: $moreenv{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2306: }
1.186 albertel 2307: $moreenv{'grade_target'}='answer';
2308: %moreenv=(%form,%moreenv);
2309: my $userview=&Apache::lonnet::ssi('/res/'.$feedurl,%moreenv);
1.10 albertel 2310: return $userview;
1.1 albertel 2311: }
1.116 albertel 2312:
2313: =pod
2314:
2315: =item * &submlink()
2316:
2317: Inputs: $text $uname $udom $symb
2318:
2319: Returns: A link to grades.pm such as to see the SUBM view of a student
2320:
2321: =cut
2322:
2323: ###############################################
2324: sub submlink {
2325: my ($text,$uname,$udom,$symb)=@_;
2326: if (!($uname && $udom)) {
2327: (my $cursymb, my $courseid,$udom,$uname)=
2328: &Apache::lonxml::whichuser($symb);
2329: if (!$symb) { $symb=$cursymb; }
2330: }
2331: if (!$symb) { $symb=&symbread(); }
2332: return '<a href="/adm/grades?symb='.$symb.'&student='.$uname.
2333: '&userdom='.$udom.'&command=submission">'.$text.'</a>';
2334: }
2335: ##############################################
1.37 matthew 2336:
1.112 bowersj2 2337: =pod
2338:
2339: =back
2340:
2341: =cut
2342:
1.37 matthew 2343: ###############################################
1.51 www 2344:
2345:
2346: sub timehash {
2347: my @ltime=localtime(shift);
2348: return ( 'seconds' => $ltime[0],
2349: 'minutes' => $ltime[1],
2350: 'hours' => $ltime[2],
2351: 'day' => $ltime[3],
2352: 'month' => $ltime[4]+1,
2353: 'year' => $ltime[5]+1900,
2354: 'weekday' => $ltime[6],
2355: 'dayyear' => $ltime[7]+1,
2356: 'dlsav' => $ltime[8] );
2357: }
2358:
2359: sub maketime {
2360: my %th=@_;
2361: return POSIX::mktime(
2362: ($th{'seconds'},$th{'minutes'},$th{'hours'},
1.210 www 2363: $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,-1));
1.70 www 2364: }
2365:
2366: #########################################
1.51 www 2367:
2368: sub findallcourses {
2369: my %courses=();
2370: my $now=time;
2371: foreach (keys %ENV) {
2372: if ($_=~/^user\.role\.\w+\.\/(\w+)\/(\w+)/) {
2373: my ($starttime,$endtime)=$ENV{$_};
2374: my $active=1;
2375: if ($starttime) {
2376: if ($now<$starttime) { $active=0; }
2377: }
2378: if ($endtime) {
2379: if ($now>$endtime) { $active=0; }
2380: }
2381: if ($active) { $courses{$1.'_'.$2}=1; }
2382: }
2383: }
2384: return keys %courses;
2385: }
1.37 matthew 2386:
1.54 www 2387: ###############################################
1.60 matthew 2388: ###############################################
2389:
2390: =pod
2391:
1.112 bowersj2 2392: =head1 Domain Template Functions
2393:
2394: =over 4
2395:
2396: =item * &determinedomain()
1.60 matthew 2397:
2398: Inputs: $domain (usually will be undef)
2399:
1.63 www 2400: Returns: Determines which domain should be used for designs
1.60 matthew 2401:
2402: =cut
1.54 www 2403:
1.60 matthew 2404: ###############################################
1.63 www 2405: sub determinedomain {
2406: my $domain=shift;
2407: if (! $domain) {
1.60 matthew 2408: # Determine domain if we have not been given one
2409: $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
2410: if ($ENV{'user.domain'}) { $domain=$ENV{'user.domain'}; }
2411: if ($ENV{'request.role.domain'}) {
2412: $domain=$ENV{'request.role.domain'};
2413: }
2414: }
1.63 www 2415: return $domain;
2416: }
2417: ###############################################
2418: =pod
2419:
1.112 bowersj2 2420: =item * &domainlogo()
1.63 www 2421:
2422: Inputs: $domain (usually will be undef)
2423:
2424: Returns: A link to a domain logo, if the domain logo exists.
2425: If the domain logo does not exist, a description of the domain.
2426:
2427: =cut
1.112 bowersj2 2428:
1.63 www 2429: ###############################################
2430: sub domainlogo {
2431: my $domain = &determinedomain(shift);
2432: # See if there is a logo
1.59 www 2433: if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') {
1.215 albertel 2434: my $logo=&lonhttpdurl("/adm/lonDomLogos/$domain.gif");
2435: return '<img src="'.$logo.'" alt="'.$domain.'" />';
1.60 matthew 2436: } elsif(exists($Apache::lonnet::domaindescription{$domain})) {
2437: return $Apache::lonnet::domaindescription{$domain};
1.59 www 2438: } else {
1.60 matthew 2439: return '';
1.59 www 2440: }
2441: }
1.63 www 2442: ##############################################
2443:
2444: =pod
2445:
1.112 bowersj2 2446: =item * &designparm()
1.63 www 2447:
2448: Inputs: $which parameter; $domain (usually will be undef)
2449:
2450: Returns: value of designparamter $which
2451:
2452: =cut
1.112 bowersj2 2453:
1.63 www 2454: ##############################################
2455: sub designparm {
2456: my ($which,$domain)=@_;
1.110 www 2457: if ($ENV{'browser.blackwhite'} eq 'on') {
2458: if ($which=~/\.(font|alink|vlink|link)$/) {
2459: return '#000000';
2460: }
2461: if ($which=~/\.(pgbg|sidebg)$/) {
2462: return '#FFFFFF';
2463: }
2464: if ($which=~/\.tabbg$/) {
2465: return '#CCCCCC';
2466: }
2467: }
1.96 www 2468: if ($ENV{'environment.color.'.$which}) {
2469: return $ENV{'environment.color.'.$which};
2470: }
1.63 www 2471: $domain=&determinedomain($domain);
2472: if ($designhash{$domain.'.'.$which}) {
2473: return $designhash{$domain.'.'.$which};
2474: } else {
2475: return $designhash{'default.'.$which};
2476: }
2477: }
1.59 www 2478:
1.60 matthew 2479: ###############################################
2480: ###############################################
2481:
2482: =pod
2483:
1.112 bowersj2 2484: =back
2485:
2486: =head1 HTTP Helpers
2487:
2488: =over 4
2489:
2490: =item * &bodytag()
1.60 matthew 2491:
2492: Returns a uniform header for LON-CAPA web pages.
2493:
2494: Inputs:
2495:
1.112 bowersj2 2496: =over 4
2497:
2498: =item * $title, A title to be displayed on the page.
2499:
2500: =item * $function, the current role (can be undef).
2501:
2502: =item * $addentries, extra parameters for the <body> tag.
2503:
2504: =item * $bodyonly, if defined, only return the <body> tag.
2505:
2506: =item * $domain, if defined, force a given domain.
2507:
2508: =item * $forcereg, if page should register as content page (relevant for
1.86 www 2509: text interface only)
1.60 matthew 2510:
1.112 bowersj2 2511: =back
2512:
1.60 matthew 2513: Returns: A uniform header for LON-CAPA web pages.
2514: If $bodyonly is nonzero, a string containing a <body> tag will be returned.
2515: If $bodyonly is undef or zero, an html string containing a <body> tag and
2516: other decorations will be returned.
2517:
2518: =cut
2519:
1.54 www 2520: sub bodytag {
1.224 raeburn 2521: my ($title,$function,$addentries,$bodyonly,$domain,$forcereg,$customtitle)=@_;
1.117 www 2522: $title=&mt($title);
1.183 matthew 2523: $function = &get_users_function() if (!$function);
1.63 www 2524: my $img=&designparm($function.'.img',$domain);
2525: my $pgbg=&designparm($function.'.pgbg',$domain);
2526: my $tabbg=&designparm($function.'.tabbg',$domain);
2527: my $font=&designparm($function.'.font',$domain);
2528: my $link=&designparm($function.'.link',$domain);
2529: my $alink=&designparm($function.'.alink',$domain);
2530: my $vlink=&designparm($function.'.vlink',$domain);
2531: my $sidebg=&designparm($function.'.sidebg',$domain);
1.110 www 2532: # Accessibility font enhance
2533: unless ($addentries) { $addentries=''; }
1.146 www 2534: my $addstyle='';
1.110 www 2535: if ($ENV{'browser.fontenhance'} eq 'on') {
1.146 www 2536: $addstyle=' font-size: x-large;';
1.110 www 2537: }
1.63 www 2538: # role and realm
1.55 www 2539: my ($role,$realm)
2540: =&Apache::lonnet::plaintext((split(/\./,$ENV{'request.role'}))[0]);
2541: # realm
1.54 www 2542: if ($ENV{'request.course.id'}) {
1.55 www 2543: $realm=
2544: $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1.54 www 2545: }
1.55 www 2546: unless ($realm) { $realm=' '; }
2547: # Set messages
1.60 matthew 2548: my $messages=&domainlogo($domain);
1.101 www 2549: # Port for miniserver
1.83 albertel 2550: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
2551: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
1.101 www 2552: # construct main body tag
1.60 matthew 2553: my $bodytag = <<END;
1.146 www 2554: <style>
1.147 www 2555: h1, h2, h3, th { font-family: Arial, Helvetica, sans-serif }
1.146 www 2556: a:focus { color: red; background: yellow }
2557: </style>
1.54 www 2558: <body bgcolor="$pgbg" text="$font" alink="$alink" vlink="$vlink" link="$link"
1.151 www 2559: style="margin-top: 0px;$addstyle" $addentries>
1.60 matthew 2560: END
1.94 www 2561: my $upperleft='<img src="http://'.$ENV{'HTTP_HOST'}.':'.
1.150 matthew 2562: $lonhttpdPort.$img.'" alt="'.$function.'" />';
1.60 matthew 2563: if ($bodyonly) {
2564: return $bodytag;
1.79 www 2565: } elsif ($ENV{'browser.interface'} eq 'textual') {
1.95 www 2566: # Accessibility
1.224 raeburn 2567:
1.93 www 2568: return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web',
2569: $forcereg).
2570: '<h1>LON-CAPA: '.$title.'</h1>';
2571: } elsif ($ENV{'environment.remote'} eq 'off') {
1.95 www 2572: # No Remote
1.206 albertel 2573: my $roleinfo=(<<ENDROLE);
2574: <td bgcolor="$tabbg" align="right">
2575: <p>
2576: <font size="2" face="Arial, Helvetica, sans-serif">
2577: $ENV{'environment.firstname'}
2578: $ENV{'environment.middlename'}
2579: $ENV{'environment.lastname'}
2580: $ENV{'environment.generation'}
2581: </font>
2582: <br />
2583: <font size="2" face="Arial, Helvetica, sans-serif">$role</font>
2584: <br />
2585: <font size="2" face="Arial, Helvetica, sans-serif">$realm</font>
2586: </p>
2587: </td>
2588: ENDROLE
1.224 raeburn 2589: my $titleinfo = '<font face="Arial, Helvetica, sans-serif" size="+3" color="'.
2590: $font.'"><b>'.$title.'</b></font>';
2591: if ($customtitle) {
2592: $titleinfo = $customtitle;
2593: }
1.95 www 2594: return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web',
2595: $forcereg).
1.224 raeburn 2596: '<table bgcolor="'.$pgbg.'" width="100%" border="0" cellspacing="3" cellpadding="3"><tr><td rowspan="3" bgcolor="'.$tabbg.'">'.$titleinfo.'</td>'.$roleinfo.'</tr></table>';
1.94 www 2597: }
1.95 www 2598:
1.93 www 2599: #
1.95 www 2600: # Top frame rendering, Remote is up
1.93 www 2601: #
1.224 raeburn 2602: my $titleinfo = ' <font size="5" face="Arial, Helvetica, sans-serif"><b>'.$title.'</b></font>';
2603: if ($customtitle) {
2604: $titleinfo = $customtitle;
2605: }
1.94 www 2606: return(<<ENDBODY);
1.60 matthew 2607: $bodytag
1.55 www 2608: <table width="100%" cellspacing="0" border="0" cellpadding="0">
1.95 www 2609: <tr><td bgcolor="$sidebg">
1.94 www 2610: $upperleft</td>
1.95 www 2611: <td bgcolor="$sidebg" align="right">$messages </td>
1.55 www 2612: </tr>
1.54 www 2613: <tr>
1.55 www 2614: <td rowspan="3" bgcolor="$tabbg">
1.224 raeburn 2615: $titleinfo
1.146 www 2616: <td bgcolor="$tabbg" align="right">
2617: <font size="2" face="Arial, Helvetica, sans-serif">
1.54 www 2618: $ENV{'environment.firstname'}
2619: $ENV{'environment.middlename'}
2620: $ENV{'environment.lastname'}
2621: $ENV{'environment.generation'}
1.55 www 2622: </font>
1.54 www 2623: </td>
2624: </tr>
2625: <tr><td bgcolor="$tabbg" align="right">
1.146 www 2626: <font size="2" face="Arial, Helvetica, sans-serif">$role</font>
1.54 www 2627: </td></tr>
1.55 www 2628: <tr>
1.148 www 2629: <td bgcolor="$tabbg" align="right"><font size="2" face="Arial, Helvetica, sans-serif">$realm</font> </td></tr>
1.202 albertel 2630: </table><br />
1.54 www 2631: ENDBODY
1.182 matthew 2632: }
2633:
2634: ###############################################
2635:
2636: =pod
2637:
2638: =item get_users_function
2639:
2640: Used by &bodytag to determine the current users primary role.
2641: Returns either 'student','coordinator','admin', or 'author'.
2642:
2643: =cut
2644:
2645: ###############################################
2646: sub get_users_function {
2647: my $function = 'student';
2648: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
2649: $function='coordinator';
2650: }
2651: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
2652: $function='admin';
2653: }
2654: if (($ENV{'request.role'}=~/^(au|ca)/) ||
2655: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
2656: $function='author';
2657: }
2658: return $function;
1.54 www 2659: }
1.99 www 2660:
2661: ###############################################
2662:
2663: sub get_posted_cgi {
2664: my $r=shift;
2665:
2666: my $buffer;
2667:
2668: $r->read($buffer,$r->header_in('Content-length'),0);
2669: unless ($buffer=~/^(\-+\w+)\s+Content\-Disposition\:\s*form\-data/si) {
2670: my @pairs=split(/&/,$buffer);
2671: my $pair;
2672: foreach $pair (@pairs) {
2673: my ($name,$value) = split(/=/,$pair);
2674: $value =~ tr/+/ /;
2675: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2676: $name =~ tr/+/ /;
2677: $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2678: &add_to_env("form.$name",$value);
2679: }
2680: } else {
2681: my $contentsep=$1;
2682: my @lines = split (/\n/,$buffer);
2683: my $name='';
2684: my $value='';
2685: my $fname='';
2686: my $fmime='';
2687: my $i;
2688: for ($i=0;$i<=$#lines;$i++) {
2689: if ($lines[$i]=~/^$contentsep/) {
2690: if ($name) {
2691: chomp($value);
2692: if ($fname) {
2693: $ENV{"form.$name.filename"}=$fname;
2694: $ENV{"form.$name.mimetype"}=$fmime;
2695: } else {
2696: $value=~s/\s+$//s;
2697: }
2698: &add_to_env("form.$name",$value);
2699: }
2700: if ($i<$#lines) {
2701: $i++;
2702: $lines[$i]=~
2703: /Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i;
2704: $name=$1;
2705: $value='';
2706: if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) {
2707: $fname=$1;
2708: if
2709: ($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) {
2710: $fmime=$1;
2711: $i++;
2712: } else {
2713: $fmime='';
2714: }
2715: } else {
2716: $fname='';
2717: $fmime='';
2718: }
2719: $i++;
2720: }
2721: } else {
2722: $value.=$lines[$i]."\n";
2723: }
2724: }
2725: }
2726: $ENV{'request.method'}=$ENV{'REQUEST_METHOD'};
2727: $r->method_number(M_GET);
2728: $r->method('GET');
2729: $r->headers_in->unset('Content-length');
2730: }
2731:
1.112 bowersj2 2732: =pod
2733:
2734: =item * get_unprocessed_cgi($query,$possible_names)
2735:
2736: Modify the %ENV hash to contain unprocessed CGI form parameters held in
2737: $query. The parameters listed in $possible_names (an array reference),
2738: will be set in $ENV{'form.name'} if they do not already exist.
2739:
2740: Typically called with $ENV{'QUERY_STRING'} as the first parameter.
2741: $possible_names is an ref to an array of form element names. As an example:
2742: get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);
2743: will result in $ENV{'form.uname'} and $ENV{'form.udom'} being set.
2744:
2745: =cut
1.1 albertel 2746:
1.6 albertel 2747: sub get_unprocessed_cgi {
1.25 albertel 2748: my ($query,$possible_names)= @_;
1.26 matthew 2749: # $Apache::lonxml::debug=1;
1.16 harris41 2750: foreach (split(/&/,$query)) {
1.6 albertel 2751: my ($name, $value) = split(/=/,$_);
1.25 albertel 2752: $name = &Apache::lonnet::unescape($name);
2753: if (!defined($possible_names) || (grep {$_ eq $name} @$possible_names)) {
2754: $value =~ tr/+/ /;
2755: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2756: &Apache::lonxml::debug("Seting :$name: to :$value:");
1.30 albertel 2757: unless (defined($ENV{'form.'.$name})) { &add_to_env('form.'.$name,$value) };
1.25 albertel 2758: }
1.16 harris41 2759: }
1.6 albertel 2760: }
2761:
1.112 bowersj2 2762: =pod
2763:
2764: =item * cacheheader()
2765:
2766: returns cache-controlling header code
2767:
2768: =cut
2769:
1.7 albertel 2770: sub cacheheader {
1.216 albertel 2771: unless ($ENV{'request.method'} eq 'GET') { return ''; }
2772: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
2773: my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
1.7 albertel 2774: <meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />
2775: <meta HTTP-EQUIV="Pragma" CONTENT="no-cache" />';
1.216 albertel 2776: return $output;
1.7 albertel 2777: }
2778:
1.112 bowersj2 2779: =pod
2780:
2781: =item * no_cache($r)
2782:
2783: specifies header code to not have cache
2784:
2785: =cut
2786:
1.9 albertel 2787: sub no_cache {
1.216 albertel 2788: my ($r) = @_;
2789: if ($ENV{'REQUEST_METHOD'} ne 'GET' &&
2790: $ENV{'request.method'} ne 'GET') { return ''; }
2791: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime(time));
2792: $r->no_cache(1);
2793: $r->header_out("Expires" => $date);
2794: $r->header_out("Pragma" => "no-cache");
1.123 www 2795: }
2796:
2797: sub content_type {
1.181 albertel 2798: my ($r,$type,$charset) = @_;
2799: unless ($charset) {
2800: $charset=&Apache::lonlocal::current_encoding;
2801: }
2802: if ($charset) { $type.='; charset='.$charset; }
2803: if ($r) {
2804: $r->content_type($type);
2805: } else {
2806: print("Content-type: $type\n\n");
2807: }
1.9 albertel 2808: }
1.25 albertel 2809:
1.112 bowersj2 2810: =pod
2811:
2812: =item * add_to_env($name,$value)
2813:
2814: adds $name to the %ENV hash with value
2815: $value, if $name already exists, the entry is converted to an array
2816: reference and $value is added to the array.
2817:
2818: =cut
2819:
1.25 albertel 2820: sub add_to_env {
2821: my ($name,$value)=@_;
1.28 albertel 2822: if (defined($ENV{$name})) {
1.27 albertel 2823: if (ref($ENV{$name})) {
1.25 albertel 2824: #already have multiple values
2825: push(@{ $ENV{$name} },$value);
2826: } else {
2827: #first time seeing multiple values, convert hash entry to an arrayref
2828: my $first=$ENV{$name};
2829: undef($ENV{$name});
2830: push(@{ $ENV{$name} },$first,$value);
2831: }
2832: } else {
2833: $ENV{$name}=$value;
2834: }
1.31 albertel 2835: }
1.149 albertel 2836:
2837: =pod
2838:
2839: =item * get_env_multiple($name)
2840:
2841: gets $name from the %ENV hash, it seemlessly handles the cases where multiple
2842: values may be defined and end up as an array ref.
2843:
2844: returns an array of values
2845:
2846: =cut
2847:
2848: sub get_env_multiple {
2849: my ($name) = @_;
2850: my @values;
2851: if (defined($ENV{$name})) {
2852: # exists is it an array
2853: if (ref($ENV{$name})) {
2854: @values=@{ $ENV{$name} };
2855: } else {
2856: $values[0]=$ENV{$name};
2857: }
2858: }
2859: return(@values);
2860: }
2861:
1.31 albertel 2862:
1.41 ng 2863: =pod
1.45 matthew 2864:
2865: =back
1.41 ng 2866:
1.112 bowersj2 2867: =head1 CSV Upload/Handling functions
1.38 albertel 2868:
1.41 ng 2869: =over 4
2870:
1.112 bowersj2 2871: =item * upfile_store($r)
1.41 ng 2872:
2873: Store uploaded file, $r should be the HTTP Request object,
2874: needs $ENV{'form.upfile'}
2875: returns $datatoken to be put into hidden field
2876:
2877: =cut
1.31 albertel 2878:
2879: sub upfile_store {
2880: my $r=shift;
2881: $ENV{'form.upfile'}=~s/\r/\n/gs;
2882: $ENV{'form.upfile'}=~s/\f/\n/gs;
2883: $ENV{'form.upfile'}=~s/\n+/\n/gs;
2884: $ENV{'form.upfile'}=~s/\n+$//gs;
2885:
2886: my $datatoken=$ENV{'user.name'}.'_'.$ENV{'user.domain'}.
2887: '_enroll_'.$ENV{'request.course.id'}.'_'.time.'_'.$$;
2888: {
1.158 raeburn 2889: my $datafile = $r->dir_config('lonDaemons').
2890: '/tmp/'.$datatoken.'.tmp';
2891: if ( open(my $fh,">$datafile") ) {
2892: print $fh $ENV{'form.upfile'};
2893: close($fh);
2894: }
1.31 albertel 2895: }
2896: return $datatoken;
2897: }
2898:
1.56 matthew 2899: =pod
2900:
1.112 bowersj2 2901: =item * load_tmp_file($r)
1.41 ng 2902:
2903: Load uploaded file from tmp, $r should be the HTTP Request object,
2904: needs $ENV{'form.datatoken'},
2905: sets $ENV{'form.upfile'} to the contents of the file
2906:
2907: =cut
1.31 albertel 2908:
2909: sub load_tmp_file {
2910: my $r=shift;
2911: my @studentdata=();
2912: {
1.158 raeburn 2913: my $studentfile = $r->dir_config('lonDaemons').
2914: '/tmp/'.$ENV{'form.datatoken'}.'.tmp';
2915: if ( open(my $fh,"<$studentfile") ) {
2916: @studentdata=<$fh>;
2917: close($fh);
2918: }
1.31 albertel 2919: }
2920: $ENV{'form.upfile'}=join('',@studentdata);
2921: }
2922:
1.56 matthew 2923: =pod
2924:
1.112 bowersj2 2925: =item * upfile_record_sep()
1.41 ng 2926:
2927: Separate uploaded file into records
2928: returns array of records,
2929: needs $ENV{'form.upfile'} and $ENV{'form.upfiletype'}
2930:
2931: =cut
1.31 albertel 2932:
2933: sub upfile_record_sep {
2934: if ($ENV{'form.upfiletype'} eq 'xml') {
2935: } else {
2936: return split(/\n/,$ENV{'form.upfile'});
2937: }
2938: }
2939:
1.56 matthew 2940: =pod
2941:
1.112 bowersj2 2942: =item * record_sep($record)
1.41 ng 2943:
2944: Separate a record into fields $record should be an item from the upfile_record_sep(), needs $ENV{'form.upfiletype'}
2945:
2946: =cut
2947:
1.31 albertel 2948: sub record_sep {
2949: my $record=shift;
2950: my %components=();
2951: if ($ENV{'form.upfiletype'} eq 'xml') {
2952: } elsif ($ENV{'form.upfiletype'} eq 'space') {
2953: my $i=0;
2954: foreach (split(/\s+/,$record)) {
2955: my $field=$_;
2956: $field=~s/^(\"|\')//;
2957: $field=~s/(\"|\')$//;
2958: $components{$i}=$field;
2959: $i++;
2960: }
2961: } elsif ($ENV{'form.upfiletype'} eq 'tab') {
2962: my $i=0;
1.171 matthew 2963: foreach (split(/\t/,$record)) {
1.31 albertel 2964: my $field=$_;
2965: $field=~s/^(\"|\')//;
2966: $field=~s/(\"|\')$//;
2967: $components{$i}=$field;
2968: $i++;
2969: }
2970: } else {
2971: my @allfields=split(/\,/,$record);
2972: my $i=0;
2973: my $j;
2974: for ($j=0;$j<=$#allfields;$j++) {
2975: my $field=$allfields[$j];
2976: if ($field=~/^\s*(\"|\')/) {
2977: my $delimiter=$1;
2978: while (($field!~/$delimiter$/) && ($j<$#allfields)) {
2979: $j++;
2980: $field.=','.$allfields[$j];
2981: }
2982: $field=~s/^\s*$delimiter//;
2983: $field=~s/$delimiter\s*$//;
2984: }
2985: $components{$i}=$field;
2986: $i++;
2987: }
2988: }
2989: return %components;
2990: }
2991:
1.144 matthew 2992: ######################################################
2993: ######################################################
2994:
1.56 matthew 2995: =pod
2996:
1.112 bowersj2 2997: =item * upfile_select_html()
1.41 ng 2998:
1.144 matthew 2999: Return HTML code to select a file from the users machine and specify
3000: the file type.
1.41 ng 3001:
3002: =cut
3003:
1.144 matthew 3004: ######################################################
3005: ######################################################
1.31 albertel 3006: sub upfile_select_html {
1.144 matthew 3007: my %Types = (
3008: csv => &mt('CSV (comma separated values, spreadsheet)'),
3009: space => &mt('Space separated'),
3010: tab => &mt('Tabulator separated'),
3011: # xml => &mt('HTML/XML'),
3012: );
3013: my $Str = '<input type="file" name="upfile" size="50" />'.
3014: '<br />Type: <select name="upfiletype">';
3015: foreach my $type (sort(keys(%Types))) {
3016: $Str .= '<option value="'.$type.'" >'.$Types{$type}."</option>\n";
3017: }
3018: $Str .= "</select>\n";
3019: return $Str;
1.31 albertel 3020: }
3021:
1.144 matthew 3022: ######################################################
3023: ######################################################
3024:
1.56 matthew 3025: =pod
3026:
1.112 bowersj2 3027: =item * csv_print_samples($r,$records)
1.41 ng 3028:
3029: Prints a table of sample values from each column uploaded $r is an
3030: Apache Request ref, $records is an arrayref from
3031: &Apache::loncommon::upfile_record_sep
3032:
3033: =cut
3034:
1.144 matthew 3035: ######################################################
3036: ######################################################
1.31 albertel 3037: sub csv_print_samples {
3038: my ($r,$records) = @_;
3039: my (%sone,%stwo,%sthree);
3040: %sone=&record_sep($$records[0]);
3041: if (defined($$records[1])) {%stwo=&record_sep($$records[1]);}
3042: if (defined($$records[2])) {%sthree=&record_sep($$records[2]);}
1.144 matthew 3043: #
3044: $r->print(&mt('Samples').'<br /><table border="2"><tr>');
3045: foreach (sort({$a <=> $b} keys(%sone))) {
3046: $r->print('<th>'.&mt('Column [_1]',($_+1)).'</th>'); }
1.31 albertel 3047: $r->print('</tr>');
3048: foreach my $hash (\%sone,\%stwo,\%sthree) {
3049: $r->print('<tr>');
3050: foreach (sort({$a <=> $b} keys(%sone))) {
3051: $r->print('<td>');
3052: if (defined($$hash{$_})) { $r->print($$hash{$_}); }
3053: $r->print('</td>');
3054: }
3055: $r->print('</tr>');
3056: }
3057: $r->print('</tr></table><br />'."\n");
3058: }
3059:
1.144 matthew 3060: ######################################################
3061: ######################################################
3062:
1.56 matthew 3063: =pod
3064:
1.112 bowersj2 3065: =item * csv_print_select_table($r,$records,$d)
1.41 ng 3066:
3067: Prints a table to create associations between values and table columns.
1.144 matthew 3068:
1.41 ng 3069: $r is an Apache Request ref,
3070: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
1.174 matthew 3071: $d is an array of 2 element arrays (internal name, displayed name,defaultcol)
1.41 ng 3072:
3073: =cut
3074:
1.144 matthew 3075: ######################################################
3076: ######################################################
1.31 albertel 3077: sub csv_print_select_table {
3078: my ($r,$records,$d) = @_;
3079: my $i=0;my %sone;
3080: %sone=&record_sep($$records[0]);
1.144 matthew 3081: $r->print(&mt('Associate columns with student attributes.')."\n".
3082: '<table border="2"><tr>'.
3083: '<th>'.&mt('Attribute').'</th>'.
3084: '<th>'.&mt('Column').'</th></tr>'."\n");
1.31 albertel 3085: foreach (@$d) {
1.174 matthew 3086: my ($value,$display,$defaultcol)=@{ $_ };
1.31 albertel 3087: $r->print('<tr><td>'.$display.'</td>');
3088:
3089: $r->print('<td><select name=f'.$i.
1.32 matthew 3090: ' onchange="javascript:flip(this.form,'.$i.');">');
1.31 albertel 3091: $r->print('<option value="none"></option>');
3092: foreach (sort({$a <=> $b} keys(%sone))) {
1.174 matthew 3093: $r->print('<option value="'.$_.'"'.
3094: ($_ eq $defaultcol ? ' selected ' : '').
3095: '>Column '.($_+1).'</option>');
1.31 albertel 3096: }
3097: $r->print('</select></td></tr>'."\n");
3098: $i++;
3099: }
3100: $i--;
3101: return $i;
3102: }
1.56 matthew 3103:
1.144 matthew 3104: ######################################################
3105: ######################################################
3106:
1.56 matthew 3107: =pod
1.31 albertel 3108:
1.112 bowersj2 3109: =item * csv_samples_select_table($r,$records,$d)
1.41 ng 3110:
3111: Prints a table of sample values from the upload and can make associate samples to internal names.
3112:
3113: $r is an Apache Request ref,
3114: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
3115: $d is an array of 2 element arrays (internal name, displayed name)
3116:
3117: =cut
3118:
1.144 matthew 3119: ######################################################
3120: ######################################################
1.31 albertel 3121: sub csv_samples_select_table {
3122: my ($r,$records,$d) = @_;
3123: my %sone; my %stwo; my %sthree;
3124: my $i=0;
1.144 matthew 3125: #
3126: $r->print('<table border=2><tr><th>'.
3127: &mt('Field').'</th><th>'.&mt('Samples').'</th></tr>');
1.31 albertel 3128: %sone=&record_sep($$records[0]);
3129: if (defined($$records[1])) {%stwo=&record_sep($$records[1]);}
3130: if (defined($$records[2])) {%sthree=&record_sep($$records[2]);}
1.144 matthew 3131: #
1.31 albertel 3132: foreach (sort keys %sone) {
1.144 matthew 3133: $r->print('<tr><td><select name="f'.$i.'"'.
1.32 matthew 3134: ' onchange="javascript:flip(this.form,'.$i.');">');
1.31 albertel 3135: foreach (@$d) {
1.174 matthew 3136: my ($value,$display,$defaultcol)=@{ $_ };
3137: $r->print('<option value="'.$value.'"'.
3138: ($i eq $defaultcol ? ' selected ':'').'>'.
3139: $display.'</option>');
1.31 albertel 3140: }
3141: $r->print('</select></td><td>');
3142: if (defined($sone{$_})) { $r->print($sone{$_}."</br>\n"); }
3143: if (defined($stwo{$_})) { $r->print($stwo{$_}."</br>\n"); }
3144: if (defined($sthree{$_})) { $r->print($sthree{$_}."</br>\n"); }
3145: $r->print('</td></tr>');
3146: $i++;
3147: }
3148: $i--;
3149: return($i);
1.115 matthew 3150: }
3151:
1.144 matthew 3152: ######################################################
3153: ######################################################
3154:
1.115 matthew 3155: =pod
3156:
3157: =item clean_excel_name($name)
3158:
3159: Returns a replacement for $name which does not contain any illegal characters.
3160:
3161: =cut
3162:
1.144 matthew 3163: ######################################################
3164: ######################################################
1.115 matthew 3165: sub clean_excel_name {
3166: my ($name) = @_;
3167: $name =~ s/[:\*\?\/\\]//g;
3168: if (length($name) > 31) {
3169: $name = substr($name,0,31);
3170: }
3171: return $name;
1.25 albertel 3172: }
1.84 albertel 3173:
1.85 albertel 3174: =pod
3175:
1.112 bowersj2 3176: =item * check_if_partid_hidden($id,$symb,$udom,$uname)
1.85 albertel 3177:
3178: Returns either 1 or undef
3179:
3180: 1 if the part is to be hidden, undef if it is to be shown
3181:
3182: Arguments are:
3183:
3184: $id the id of the part to be checked
3185: $symb, optional the symb of the resource to check
3186: $udom, optional the domain of the user to check for
3187: $uname, optional the username of the user to check for
3188:
3189: =cut
1.84 albertel 3190:
3191: sub check_if_partid_hidden {
3192: my ($id,$symb,$udom,$uname) = @_;
1.133 albertel 3193: my $hiddenparts=&Apache::lonnet::EXT('resource.0.hiddenparts',
1.84 albertel 3194: $symb,$udom,$uname);
1.141 albertel 3195: my $truth=1;
3196: #if the string starts with !, then the list is the list to show not hide
3197: if ($hiddenparts=~s/^\s*!//) { $truth=undef; }
1.84 albertel 3198: my @hiddenlist=split(/,/,$hiddenparts);
3199: foreach my $checkid (@hiddenlist) {
1.141 albertel 3200: if ($checkid =~ /^\s*\Q$id\E\s*$/) { return $truth; }
1.84 albertel 3201: }
1.141 albertel 3202: return !$truth;
1.84 albertel 3203: }
1.127 matthew 3204:
1.138 matthew 3205:
3206: ############################################################
3207: ############################################################
3208:
3209: =pod
3210:
1.157 matthew 3211: =back
3212:
1.138 matthew 3213: =head1 cgi-bin script and graphing routines
3214:
1.157 matthew 3215: =over 4
3216:
1.138 matthew 3217: =item get_cgi_id
3218:
3219: Inputs: none
3220:
3221: Returns an id which can be used to pass environment variables
3222: to various cgi-bin scripts. These environment variables will
3223: be removed from the users environment after a given time by
3224: the routine &Apache::lonnet::transfer_profile_to_env.
3225:
3226: =cut
3227:
3228: ############################################################
3229: ############################################################
1.152 albertel 3230: my $uniq=0;
1.136 matthew 3231: sub get_cgi_id {
1.154 albertel 3232: $uniq=($uniq+1)%100000;
1.152 albertel 3233: return (time.'_'.$uniq);
1.136 matthew 3234: }
3235:
1.127 matthew 3236: ############################################################
3237: ############################################################
3238:
3239: =pod
3240:
1.134 matthew 3241: =item DrawBarGraph
1.127 matthew 3242:
1.138 matthew 3243: Facilitates the plotting of data in a (stacked) bar graph.
3244: Puts plot definition data into the users environment in order for
3245: graph.png to plot it. Returns an <img> tag for the plot.
3246: The bars on the plot are labeled '1','2',...,'n'.
3247:
3248: Inputs:
3249:
3250: =over 4
3251:
3252: =item $Title: string, the title of the plot
3253:
3254: =item $xlabel: string, text describing the X-axis of the plot
3255:
3256: =item $ylabel: string, text describing the Y-axis of the plot
3257:
3258: =item $Max: scalar, the maximum Y value to use in the plot
3259: If $Max is < any data point, the graph will not be rendered.
3260:
1.140 matthew 3261: =item $colors: array ref holding the colors to be used for the data sets when
1.138 matthew 3262: they are plotted. If undefined, default values will be used.
3263:
1.178 matthew 3264: =item $labels: array ref holding the labels to use on the x-axis for the bars.
3265:
1.138 matthew 3266: =item @Values: An array of array references. Each array reference holds data
3267: to be plotted in a stacked bar chart.
3268:
3269: =back
3270:
3271: Returns:
3272:
3273: An <img> tag which references graph.png and the appropriate identifying
3274: information for the plot.
3275:
1.127 matthew 3276: =cut
3277:
3278: ############################################################
3279: ############################################################
1.134 matthew 3280: sub DrawBarGraph {
1.178 matthew 3281: my ($Title,$xlabel,$ylabel,$Max,$colors,$labels,@Values)=@_;
1.134 matthew 3282: #
3283: if (! defined($colors)) {
3284: $colors = ['#33ff00',
3285: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
3286: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
3287: ];
3288: }
1.127 matthew 3289: #
1.136 matthew 3290: my $identifier = &get_cgi_id();
3291: my $id = 'cgi.'.$identifier;
1.129 matthew 3292: if (! @Values || ref($Values[0]) ne 'ARRAY') {
1.127 matthew 3293: return '';
3294: }
1.225 ! matthew 3295: #
! 3296: my @Labels;
! 3297: if (defined($labels)) {
! 3298: @Labels = @$labels;
! 3299: } else {
! 3300: for (my $i=0;$i<@{$Values[0]};$i++) {
! 3301: push (@Labels,$i+1);
! 3302: }
! 3303: }
! 3304: #
1.129 matthew 3305: my $NumBars = scalar(@{$Values[0]});
1.225 ! matthew 3306: if ($NumBars < scalar(@Labels)) { $NumBars = scalar(@Labels); }
1.129 matthew 3307: my %ValuesHash;
3308: my $NumSets=1;
3309: foreach my $array (@Values) {
3310: next if (! ref($array));
1.136 matthew 3311: $ValuesHash{$id.'.data.'.$NumSets++} =
1.132 matthew 3312: join(',',@$array);
1.129 matthew 3313: }
1.127 matthew 3314: #
1.136 matthew 3315: my ($height,$width,$xskip,$bar_width) = (200,120,1,15);
1.225 ! matthew 3316: if ($NumBars < 3) {
! 3317: $width = 120+$NumBars*32;
1.220 matthew 3318: $xskip = 1;
1.225 ! matthew 3319: $bar_width = 30;
! 3320: } elsif ($NumBars < 5) {
! 3321: $width = 120+$NumBars*20;
! 3322: $xskip = 1;
! 3323: $bar_width = 20;
1.220 matthew 3324: } elsif ($NumBars < 10) {
1.136 matthew 3325: $width = 120+$NumBars*15;
3326: $xskip = 1;
3327: $bar_width = 15;
3328: } elsif ($NumBars <= 25) {
3329: $width = 120+$NumBars*11;
3330: $xskip = 5;
3331: $bar_width = 8;
3332: } elsif ($NumBars <= 50) {
3333: $width = 120+$NumBars*8;
3334: $xskip = 5;
3335: $bar_width = 4;
3336: } else {
3337: $width = 120+$NumBars*8;
3338: $xskip = 5;
3339: $bar_width = 4;
3340: }
3341: #
1.137 matthew 3342: $Max = 1 if ($Max < 1);
3343: if ( int($Max) < $Max ) {
3344: $Max++;
3345: $Max = int($Max);
3346: }
1.127 matthew 3347: $Title = '' if (! defined($Title));
3348: $xlabel = '' if (! defined($xlabel));
3349: $ylabel = '' if (! defined($ylabel));
1.136 matthew 3350: $ValuesHash{$id.'.title'} = &Apache::lonnet::escape($Title);
3351: $ValuesHash{$id.'.xlabel'} = &Apache::lonnet::escape($xlabel);
3352: $ValuesHash{$id.'.ylabel'} = &Apache::lonnet::escape($ylabel);
1.137 matthew 3353: $ValuesHash{$id.'.y_max_value'} = $Max;
1.136 matthew 3354: $ValuesHash{$id.'.NumBars'} = $NumBars;
3355: $ValuesHash{$id.'.NumSets'} = $NumSets;
3356: $ValuesHash{$id.'.PlotType'} = 'bar';
3357: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
3358: $ValuesHash{$id.'.height'} = $height;
3359: $ValuesHash{$id.'.width'} = $width;
3360: $ValuesHash{$id.'.xskip'} = $xskip;
3361: $ValuesHash{$id.'.bar_width'} = $bar_width;
3362: $ValuesHash{$id.'.labels'} = join(',',@Labels);
1.127 matthew 3363: #
1.137 matthew 3364: &Apache::lonnet::appenv(%ValuesHash);
3365: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
3366: }
3367:
3368: ############################################################
3369: ############################################################
3370:
3371: =pod
3372:
3373: =item DrawXYGraph
3374:
1.138 matthew 3375: Facilitates the plotting of data in an XY graph.
3376: Puts plot definition data into the users environment in order for
3377: graph.png to plot it. Returns an <img> tag for the plot.
3378:
3379: Inputs:
3380:
3381: =over 4
3382:
3383: =item $Title: string, the title of the plot
3384:
3385: =item $xlabel: string, text describing the X-axis of the plot
3386:
3387: =item $ylabel: string, text describing the Y-axis of the plot
3388:
3389: =item $Max: scalar, the maximum Y value to use in the plot
3390: If $Max is < any data point, the graph will not be rendered.
3391:
3392: =item $colors: Array ref containing the hex color codes for the data to be
3393: plotted in. If undefined, default values will be used.
3394:
3395: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
3396:
3397: =item $Ydata: Array ref containing Array refs.
1.185 www 3398: Each of the contained arrays will be plotted as a separate curve.
1.138 matthew 3399:
3400: =item %Values: hash indicating or overriding any default values which are
3401: passed to graph.png.
3402: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
3403:
3404: =back
3405:
3406: Returns:
3407:
3408: An <img> tag which references graph.png and the appropriate identifying
3409: information for the plot.
3410:
1.137 matthew 3411: =cut
3412:
3413: ############################################################
3414: ############################################################
3415: sub DrawXYGraph {
3416: my ($Title,$xlabel,$ylabel,$Max,$colors,$Xlabels,$Ydata,%Values)=@_;
3417: #
3418: # Create the identifier for the graph
3419: my $identifier = &get_cgi_id();
3420: my $id = 'cgi.'.$identifier;
3421: #
3422: $Title = '' if (! defined($Title));
3423: $xlabel = '' if (! defined($xlabel));
3424: $ylabel = '' if (! defined($ylabel));
3425: my %ValuesHash =
3426: (
3427: $id.'.title' => &Apache::lonnet::escape($Title),
3428: $id.'.xlabel' => &Apache::lonnet::escape($xlabel),
3429: $id.'.ylabel' => &Apache::lonnet::escape($ylabel),
3430: $id.'.y_max_value'=> $Max,
3431: $id.'.labels' => join(',',@$Xlabels),
3432: $id.'.PlotType' => 'XY',
3433: );
3434: #
3435: if (defined($colors) && ref($colors) eq 'ARRAY') {
3436: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
3437: }
3438: #
3439: if (! ref($Ydata) || ref($Ydata) ne 'ARRAY') {
3440: return '';
3441: }
3442: my $NumSets=1;
1.138 matthew 3443: foreach my $array (@{$Ydata}){
1.137 matthew 3444: next if (! ref($array));
3445: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
3446: }
1.138 matthew 3447: $ValuesHash{$id.'.NumSets'} = $NumSets-1;
1.137 matthew 3448: #
3449: # Deal with other parameters
3450: while (my ($key,$value) = each(%Values)) {
3451: $ValuesHash{$id.'.'.$key} = $value;
1.127 matthew 3452: }
3453: #
1.136 matthew 3454: &Apache::lonnet::appenv(%ValuesHash);
3455: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
3456: }
3457:
3458: ############################################################
3459: ############################################################
3460:
3461: =pod
3462:
1.138 matthew 3463: =item DrawXYYGraph
3464:
3465: Facilitates the plotting of data in an XY graph with two Y axes.
3466: Puts plot definition data into the users environment in order for
3467: graph.png to plot it. Returns an <img> tag for the plot.
3468:
3469: Inputs:
3470:
3471: =over 4
3472:
3473: =item $Title: string, the title of the plot
3474:
3475: =item $xlabel: string, text describing the X-axis of the plot
3476:
3477: =item $ylabel: string, text describing the Y-axis of the plot
3478:
3479: =item $colors: Array ref containing the hex color codes for the data to be
3480: plotted in. If undefined, default values will be used.
3481:
3482: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
3483:
3484: =item $Ydata1: The first data set
3485:
3486: =item $Min1: The minimum value of the left Y-axis
3487:
3488: =item $Max1: The maximum value of the left Y-axis
3489:
3490: =item $Ydata2: The second data set
3491:
3492: =item $Min2: The minimum value of the right Y-axis
3493:
3494: =item $Max2: The maximum value of the left Y-axis
3495:
3496: =item %Values: hash indicating or overriding any default values which are
3497: passed to graph.png.
3498: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
3499:
3500: =back
3501:
3502: Returns:
3503:
3504: An <img> tag which references graph.png and the appropriate identifying
3505: information for the plot.
1.136 matthew 3506:
3507: =cut
3508:
3509: ############################################################
3510: ############################################################
1.137 matthew 3511: sub DrawXYYGraph {
3512: my ($Title,$xlabel,$ylabel,$colors,$Xlabels,$Ydata1,$Min1,$Max1,
3513: $Ydata2,$Min2,$Max2,%Values)=@_;
1.136 matthew 3514: #
3515: # Create the identifier for the graph
3516: my $identifier = &get_cgi_id();
3517: my $id = 'cgi.'.$identifier;
3518: #
3519: $Title = '' if (! defined($Title));
3520: $xlabel = '' if (! defined($xlabel));
3521: $ylabel = '' if (! defined($ylabel));
3522: my %ValuesHash =
3523: (
3524: $id.'.title' => &Apache::lonnet::escape($Title),
3525: $id.'.xlabel' => &Apache::lonnet::escape($xlabel),
3526: $id.'.ylabel' => &Apache::lonnet::escape($ylabel),
3527: $id.'.labels' => join(',',@$Xlabels),
3528: $id.'.PlotType' => 'XY',
3529: $id.'.NumSets' => 2,
1.137 matthew 3530: $id.'.two_axes' => 1,
3531: $id.'.y1_max_value' => $Max1,
3532: $id.'.y1_min_value' => $Min1,
3533: $id.'.y2_max_value' => $Max2,
3534: $id.'.y2_min_value' => $Min2,
1.136 matthew 3535: );
3536: #
1.137 matthew 3537: if (defined($colors) && ref($colors) eq 'ARRAY') {
3538: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
3539: }
3540: #
3541: if (! ref($Ydata1) || ref($Ydata1) ne 'ARRAY' ||
3542: ! ref($Ydata2) || ref($Ydata2) ne 'ARRAY'){
1.136 matthew 3543: return '';
3544: }
3545: my $NumSets=1;
1.137 matthew 3546: foreach my $array ($Ydata1,$Ydata2){
1.136 matthew 3547: next if (! ref($array));
3548: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
1.137 matthew 3549: }
3550: #
3551: # Deal with other parameters
3552: while (my ($key,$value) = each(%Values)) {
3553: $ValuesHash{$id.'.'.$key} = $value;
1.136 matthew 3554: }
3555: #
3556: &Apache::lonnet::appenv(%ValuesHash);
1.130 albertel 3557: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
1.139 matthew 3558: }
3559:
3560: ############################################################
3561: ############################################################
3562:
3563: =pod
3564:
1.157 matthew 3565: =back
3566:
1.139 matthew 3567: =head1 Statistics helper routines?
3568:
3569: Bad place for them but what the hell.
3570:
1.157 matthew 3571: =over 4
3572:
1.139 matthew 3573: =item &chartlink
3574:
3575: Returns a link to the chart for a specific student.
3576:
3577: Inputs:
3578:
3579: =over 4
3580:
3581: =item $linktext: The text of the link
3582:
3583: =item $sname: The students username
3584:
3585: =item $sdomain: The students domain
3586:
3587: =back
3588:
1.157 matthew 3589: =back
3590:
1.139 matthew 3591: =cut
3592:
3593: ############################################################
3594: ############################################################
3595: sub chartlink {
3596: my ($linktext, $sname, $sdomain) = @_;
3597: my $link = '<a href="/adm/statistics?reportSelected=student_assessment'.
1.219 albertel 3598: '&SelectedStudent='.&Apache::lonnet::escape($sname.':'.$sdomain).
3599: '&chartoutputmode='.HTML::Entities::encode('html, with all links').
1.139 matthew 3600: '">'.$linktext.'</a>';
1.153 matthew 3601: }
3602:
3603: #######################################################
3604: #######################################################
3605:
3606: =pod
3607:
3608: =head1 Course Environment Routines
1.157 matthew 3609:
3610: =over 4
1.153 matthew 3611:
3612: =item &restore_course_settings
3613:
3614: =item &store_course_settings
3615:
3616: Restores/Store indicated form parameters from the course environment.
3617: Will not overwrite existing values of the form parameters.
3618:
3619: Inputs:
3620: a scalar describing the data (e.g. 'chart', 'problem_analysis')
3621:
3622: a hash ref describing the data to be stored. For example:
3623:
3624: %Save_Parameters = ('Status' => 'scalar',
3625: 'chartoutputmode' => 'scalar',
3626: 'chartoutputdata' => 'scalar',
3627: 'Section' => 'array',
3628: 'StudentData' => 'array',
3629: 'Maps' => 'array');
3630:
3631: Returns: both routines return nothing
3632:
3633: =cut
3634:
3635: #######################################################
3636: #######################################################
3637: sub store_course_settings {
3638: # save to the environment
3639: # appenv the same items, just to be safe
3640: my $courseid = $ENV{'request.course.id'};
3641: my $coursedom = $ENV{'course.'.$courseid.'.domain'};
3642: my ($prefix,$Settings) = @_;
3643: my %SaveHash;
3644: my %AppHash;
3645: while (my ($setting,$type) = each(%$Settings)) {
1.176 albertel 3646: my $basename = 'internal.'.$prefix.'.'.$setting;
1.153 matthew 3647: my $envname = 'course.'.$courseid.'.'.$basename;
3648: if (exists($ENV{'form.'.$setting})) {
3649: # Save this value away
3650: if ($type eq 'scalar' &&
3651: (! exists($ENV{$envname}) ||
3652: $ENV{$envname} ne $ENV{'form.'.$setting})) {
3653: $SaveHash{$basename} = $ENV{'form.'.$setting};
3654: $AppHash{$envname} = $ENV{'form.'.$setting};
3655: } elsif ($type eq 'array') {
3656: my $stored_form;
3657: if (ref($ENV{'form.'.$setting})) {
3658: $stored_form = join(',',
3659: map {
3660: &Apache::lonnet::escape($_);
3661: } sort(@{$ENV{'form.'.$setting}}));
3662: } else {
3663: $stored_form =
3664: &Apache::lonnet::escape($ENV{'form.'.$setting});
3665: }
3666: # Determine if the array contents are the same.
3667: if ($stored_form ne $ENV{$envname}) {
3668: $SaveHash{$basename} = $stored_form;
3669: $AppHash{$envname} = $stored_form;
3670: }
3671: }
3672: }
3673: }
3674: my $put_result = &Apache::lonnet::put('environment',\%SaveHash,
3675: $coursedom,
3676: $ENV{'course.'.$courseid.'.num'});
3677: if ($put_result !~ /^(ok|delayed)/) {
3678: &Apache::lonnet::logthis('unable to save form parameters, '.
3679: 'got error:'.$put_result);
3680: }
3681: # Make sure these settings stick around in this session, too
3682: &Apache::lonnet::appenv(%AppHash);
3683: return;
3684: }
3685:
3686: sub restore_course_settings {
3687: my $courseid = $ENV{'request.course.id'};
3688: my ($prefix,$Settings) = @_;
3689: while (my ($setting,$type) = each(%$Settings)) {
3690: next if (exists($ENV{'form.'.$setting}));
1.176 albertel 3691: my $envname = 'course.'.$courseid.'.internal.'.$prefix.
1.153 matthew 3692: '.'.$setting;
3693: if (exists($ENV{$envname})) {
3694: if ($type eq 'scalar') {
3695: $ENV{'form.'.$setting} = $ENV{$envname};
3696: } elsif ($type eq 'array') {
3697: $ENV{'form.'.$setting} = [
3698: map {
3699: &Apache::lonnet::unescape($_);
3700: } split(',',$ENV{$envname})
3701: ];
3702: }
3703: }
3704: }
1.127 matthew 3705: }
3706:
3707: ############################################################
3708: ############################################################
1.154 albertel 3709:
3710: sub propath {
3711: my ($udom,$uname)=@_;
3712: $udom=~s/\W//g;
3713: $uname=~s/\W//g;
3714: my $subdir=$uname.'__';
3715: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
3716: my $proname="$Apache::lonnet::perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
3717: return $proname;
1.156 albertel 3718: }
3719:
3720: sub icon {
3721: my ($file)=@_;
1.168 albertel 3722: my $curfext = (split(/\./,$file))[-1];
3723: my $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/unknown.gif';
1.156 albertel 3724: my $embstyle = &Apache::loncommon::fileembstyle($curfext);
1.168 albertel 3725: if (!(!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn')) {
3726: if (-e $Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
3727: $Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
3728: $curfext.".gif") {
3729: $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
3730: $curfext.".gif";
3731: }
3732: }
3733: return $iconname;
1.154 albertel 3734: }
1.84 albertel 3735:
1.215 albertel 3736: sub lonhttpdurl {
3737: my ($url)=@_;
3738: my $lonhttpd_port=$Apache::lonnet::perlvar{'lonhttpdPort'};
3739: if (!defined($lonhttpd_port)) { $lonhttpd_port='8080'; }
3740: return 'http://'.$ENV{'SERVER_NAME'}.':'.$lonhttpd_port.$url;
3741: }
3742:
1.213 albertel 3743: sub connection_aborted {
3744: my ($r)=@_;
3745: $r->print(" ");$r->rflush();
3746: my $c = $r->connection;
3747: return $c->aborted();
3748: }
3749:
1.221 foxr 3750: # Escapes strings that may have embedded 's that will be put into
1.222 foxr 3751: # strings as 'strings'.
3752: sub escape_single {
1.221 foxr 3753: my ($input) = @_;
1.223 albertel 3754: $input =~ s/\\/\\\\/g; # Escape the \'s..(must be first)>
1.221 foxr 3755: $input =~ s/\'/\\\'/g; # Esacpe the 's....
3756: return $input;
3757: }
1.223 albertel 3758:
1.222 foxr 3759: # Same as escape_single, but escape's "'s This
3760: # can be used for "strings"
3761: sub escape_double {
3762: my ($input) = @_;
3763: $input =~ s/\\/\\\\/g; # Escape the /'s..(must be first)>
3764: $input =~ s/\"/\\\"/g; # Esacpe the "s....
3765: return $input;
3766: }
1.223 albertel 3767:
1.222 foxr 3768: # Escapes the last element of a full URL.
3769: sub escape_url {
3770: my ($url) = @_;
3771: my @urlslices = split(/\//, $url);
1.223 albertel 3772: my $lastitem = &Apache::lonnet::escape(pop(@urlslices));
3773: return join('/',@urlslices).'/'.$lastitem;
1.222 foxr 3774: }
1.41 ng 3775: =pod
3776:
3777: =back
3778:
1.112 bowersj2 3779: =cut
1.41 ng 3780:
1.112 bowersj2 3781: 1;
3782: __END__;
1.41 ng 3783:
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