Annotation of loncom/interface/loncommon.pm, revision 1.209
1.10 albertel 1: # The LearningOnline Network with CAPA
1.1 albertel 2: # a pile of common routines
1.10 albertel 3: #
1.209 ! albertel 4: # $Id: loncommon.pm,v 1.208 2004/08/26 21:42:40 matthew 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 $resurl=&lastresurl();
1.42 matthew 256: return <<END;
1.50 matthew 257: var editbrowser = null;
1.135 albertel 258: function openbrowser(formname,elementname,only,omit,titleelement) {
1.170 www 259: var url = '$resurl/?';
1.42 matthew 260: if (editbrowser == null) {
261: url += 'launch=1&';
262: }
263: url += 'catalogmode=interactive&';
1.199 albertel 264: url += 'mode=$mode&';
1.42 matthew 265: url += 'form=' + formname + '&';
266: if (only != null) {
267: url += 'only=' + only + '&';
268: }
269: if (omit != null) {
270: url += 'omit=' + omit + '&';
271: }
1.135 albertel 272: if (titleelement != null) {
273: url += 'titleelement=' + titleelement + '&';
274: }
1.42 matthew 275: url += 'element=' + elementname + '';
276: var title = 'Browser';
277: var options = 'scrollbars=1,resizable=1,menubar=0';
278: options += ',width=700,height=600';
279: editbrowser = open(url,title,options,'1');
280: editbrowser.focus();
281: }
282: var editsearcher;
1.135 albertel 283: function opensearcher(formname,elementname,titleelement) {
1.42 matthew 284: var url = '/adm/searchcat?';
285: if (editsearcher == null) {
286: url += 'launch=1&';
287: }
288: url += 'catalogmode=interactive&';
1.199 albertel 289: url += 'mode=$mode&';
1.42 matthew 290: url += 'form=' + formname + '&';
1.135 albertel 291: if (titleelement != null) {
292: url += 'titleelement=' + titleelement + '&';
293: }
1.42 matthew 294: url += 'element=' + elementname + '';
295: var title = 'Search';
296: var options = 'scrollbars=1,resizable=1,menubar=0';
297: options += ',width=700,height=600';
298: editsearcher = open(url,title,options,'1');
299: editsearcher.focus();
300: }
301: END
1.170 www 302: }
303:
304: sub lastresurl {
305: if ($ENV{'environment.lastresurl'}) {
306: return $ENV{'environment.lastresurl'}
307: } else {
308: return '/res';
309: }
310: }
311:
312: sub storeresurl {
313: my $resurl=&Apache::lonnet::clutter(shift);
314: unless ($resurl=~/^\/res/) { return 0; }
315: $resurl=~s/\/$//;
316: &Apache::lonnet::put('environment',{'lastresurl' => $resurl});
317: &Apache::lonnet::appenv('environment.lastresurl' => $resurl);
318: return 1;
1.42 matthew 319: }
320:
1.74 www 321: sub studentbrowser_javascript {
1.111 www 322: unless (
323: (($ENV{'request.course.id'}) &&
324: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})))
325: || ($ENV{'request.role'}=~/^(au|dc|su)/)
326: ) { return ''; }
1.74 www 327: return (<<'ENDSTDBRW');
328: <script type="text/javascript" language="Javascript" >
329: var stdeditbrowser;
1.111 www 330: function openstdbrowser(formname,uname,udom,roleflag) {
1.74 www 331: var url = '/adm/pickstudent?';
332: var filter;
333: eval('filter=document.'+formname+'.'+uname+'.value;');
334: if (filter != null) {
335: if (filter != '') {
336: url += 'filter='+filter+'&';
337: }
338: }
339: url += 'form=' + formname + '&unameelement='+uname+
340: '&udomelement='+udom;
1.111 www 341: if (roleflag) { url+="&roles=1"; }
1.102 www 342: var title = 'Student_Browser';
1.74 www 343: var options = 'scrollbars=1,resizable=1,menubar=0';
344: options += ',width=700,height=600';
345: stdeditbrowser = open(url,title,options,'1');
346: stdeditbrowser.focus();
347: }
348: </script>
349: ENDSTDBRW
350: }
1.42 matthew 351:
1.74 www 352: sub selectstudent_link {
1.111 www 353: my ($form,$unameele,$udomele)=@_;
354: if ($ENV{'request.course.id'}) {
355: unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
356: return '';
357: }
358: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
1.119 www 359: '","'.$udomele.'");'."'>".&mt('Select User')."</a>";
1.74 www 360: }
1.111 www 361: if ($ENV{'request.role'}=~/^(au|dc|su)/) {
362: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
1.119 www 363: '","'.$udomele.'",1);'."'>".&mt('Select User')."</a>";
1.111 www 364: }
365: return '';
1.91 www 366: }
367:
368: sub coursebrowser_javascript {
1.128 albertel 369: my ($domainfilter)=@_;
370: return (<<ENDSTDBRW);
1.91 www 371: <script type="text/javascript" language="Javascript" >
372: var stdeditbrowser;
1.187 albertel 373: function opencrsbrowser(formname,uname,udom,desc) {
1.91 www 374: var url = '/adm/pickcourse?';
375: var filter;
376: if (filter != null) {
377: if (filter != '') {
378: url += 'filter='+filter+'&';
379: }
380: }
1.128 albertel 381: var domainfilter='$domainfilter';
382: if (domainfilter != null) {
383: if (domainfilter != '') {
384: url += 'domainfilter='+domainfilter+'&';
385: }
386: }
1.91 www 387: url += 'form=' + formname + '&cnumelement='+uname+
1.187 albertel 388: '&cdomelement='+udom+
389: '&cnameelement='+desc;
1.102 www 390: var title = 'Course_Browser';
1.91 www 391: var options = 'scrollbars=1,resizable=1,menubar=0';
392: options += ',width=700,height=600';
393: stdeditbrowser = open(url,title,options,'1');
394: stdeditbrowser.focus();
395: }
396: </script>
397: ENDSTDBRW
398: }
399:
400: sub selectcourse_link {
1.187 albertel 401: my ($form,$unameele,$udomele,$desc)=@_;
1.91 www 402: return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele.
1.187 albertel 403: '","'.$udomele.'","'.$desc.'");'."'>".&mt('Select Course')."</a>";
1.74 www 404: }
1.42 matthew 405:
406: =pod
1.36 matthew 407:
1.112 bowersj2 408: =item * linked_select_forms(...)
1.36 matthew 409:
410: linked_select_forms returns a string containing a <script></script> block
411: and html for two <select> menus. The select menus will be linked in that
412: changing the value of the first menu will result in new values being placed
413: in the second menu. The values in the select menu will appear in alphabetical
414: order.
415:
416: linked_select_forms takes the following ordered inputs:
417:
418: =over 4
419:
1.112 bowersj2 420: =item * $formname, the name of the <form> tag
1.36 matthew 421:
1.112 bowersj2 422: =item * $middletext, the text which appears between the <select> tags
1.36 matthew 423:
1.112 bowersj2 424: =item * $firstdefault, the default value for the first menu
1.36 matthew 425:
1.112 bowersj2 426: =item * $firstselectname, the name of the first <select> tag
1.36 matthew 427:
1.112 bowersj2 428: =item * $secondselectname, the name of the second <select> tag
1.36 matthew 429:
1.112 bowersj2 430: =item * $hashref, a reference to a hash containing the data for the menus.
1.36 matthew 431:
1.41 ng 432: =back
433:
1.36 matthew 434: Below is an example of such a hash. Only the 'text', 'default', and
435: 'select2' keys must appear as stated. keys(%menu) are the possible
436: values for the first select menu. The text that coincides with the
1.41 ng 437: first menu value is given in $menu{$choice1}->{'text'}. The values
1.36 matthew 438: and text for the second menu are given in the hash pointed to by
439: $menu{$choice1}->{'select2'}.
440:
1.112 bowersj2 441: my %menu = ( A1 => { text =>"Choice A1" ,
442: default => "B3",
443: select2 => {
444: B1 => "Choice B1",
445: B2 => "Choice B2",
446: B3 => "Choice B3",
447: B4 => "Choice B4"
448: }
449: },
450: A2 => { text =>"Choice A2" ,
451: default => "C2",
452: select2 => {
453: C1 => "Choice C1",
454: C2 => "Choice C2",
455: C3 => "Choice C3"
456: }
457: },
458: A3 => { text =>"Choice A3" ,
459: default => "D6",
460: select2 => {
461: D1 => "Choice D1",
462: D2 => "Choice D2",
463: D3 => "Choice D3",
464: D4 => "Choice D4",
465: D5 => "Choice D5",
466: D6 => "Choice D6",
467: D7 => "Choice D7"
468: }
469: }
470: );
1.36 matthew 471:
472: =cut
473:
474: sub linked_select_forms {
475: my ($formname,
476: $middletext,
477: $firstdefault,
478: $firstselectname,
479: $secondselectname,
480: $hashref
481: ) = @_;
482: my $second = "document.$formname.$secondselectname";
483: my $first = "document.$formname.$firstselectname";
484: # output the javascript to do the changing
485: my $result = '';
486: $result.="<script>\n";
487: $result.="var select2data = new Object();\n";
488: $" = '","';
489: my $debug = '';
490: foreach my $s1 (sort(keys(%$hashref))) {
491: $result.="select2data.d_$s1 = new Object();\n";
492: $result.="select2data.d_$s1.def = new String('".
493: $hashref->{$s1}->{'default'}."');\n";
494: $result.="select2data.d_$s1.values = new Array(";
495: my @s2values = sort(keys( %{ $hashref->{$s1}->{'select2'} } ));
496: $result.="\"@s2values\");\n";
497: $result.="select2data.d_$s1.texts = new Array(";
498: my @s2texts;
499: foreach my $value (@s2values) {
500: push @s2texts, $hashref->{$s1}->{'select2'}->{$value};
501: }
502: $result.="\"@s2texts\");\n";
503: }
504: $"=' ';
505: $result.= <<"END";
506:
507: function select1_changed() {
508: // Determine new choice
509: var newvalue = "d_" + $first.value;
510: // update select2
511: var values = select2data[newvalue].values;
512: var texts = select2data[newvalue].texts;
513: var select2def = select2data[newvalue].def;
514: var i;
515: // out with the old
516: for (i = 0; i < $second.options.length; i++) {
517: $second.options[i] = null;
518: }
519: // in with the nuclear
520: for (i=0;i<values.length; i++) {
521: $second.options[i] = new Option(values[i]);
1.143 matthew 522: $second.options[i].value = values[i];
1.36 matthew 523: $second.options[i].text = texts[i];
524: if (values[i] == select2def) {
525: $second.options[i].selected = true;
526: }
527: }
528: }
529: </script>
530: END
531: # output the initial values for the selection lists
532: $result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed()\">\n";
533: foreach my $value (sort(keys(%$hashref))) {
534: $result.=" <option value=\"$value\" ";
535: $result.=" selected=\"true\" " if ($value eq $firstdefault);
1.119 www 536: $result.=">".&mt($hashref->{$value}->{'text'})."</option>\n";
1.36 matthew 537: }
538: $result .= "</select>\n";
539: my %select2 = %{$hashref->{$firstdefault}->{'select2'}};
540: $result .= $middletext;
541: $result .= "<select size=\"1\" name=\"$secondselectname\">\n";
542: my $seconddefault = $hashref->{$firstdefault}->{'default'};
543: foreach my $value (sort(keys(%select2))) {
544: $result.=" <option value=\"$value\" ";
545: $result.=" selected=\"true\" " if ($value eq $seconddefault);
1.119 www 546: $result.=">".&mt($select2{$value})."</option>\n";
1.36 matthew 547: }
548: $result .= "</select>\n";
549: # return $debug;
550: return $result;
551: } # end of sub linked_select_forms {
552:
1.45 matthew 553: =pod
1.44 bowersj2 554:
1.112 bowersj2 555: =item * help_open_topic($topic, $text, $stayOnPage, $width, $height)
1.44 bowersj2 556:
1.112 bowersj2 557: Returns a string corresponding to an HTML link to the given help
558: $topic, where $topic corresponds to the name of a .tex file in
559: /home/httpd/html/adm/help/tex, with underscores replaced by
560: spaces.
561:
562: $text will optionally be linked to the same topic, allowing you to
563: link text in addition to the graphic. If you do not want to link
564: text, but wish to specify one of the later parameters, pass an
565: empty string.
566:
567: $stayOnPage is a value that will be interpreted as a boolean. If true,
568: the link will not open a new window. If false, the link will open
569: a new window using Javascript. (Default is false.)
570:
571: $width and $height are optional numerical parameters that will
572: override the width and height of the popped up window, which may
573: be useful for certain help topics with big pictures included.
1.44 bowersj2 574:
575: =cut
576:
577: sub help_open_topic {
1.48 bowersj2 578: my ($topic, $text, $stayOnPage, $width, $height) = @_;
579: $text = "" if (not defined $text);
1.44 bowersj2 580: $stayOnPage = 0 if (not defined $stayOnPage);
1.108 bowersj2 581: if ($ENV{'browser.interface'} eq 'textual' ||
582: $ENV{'environment.remote'} eq 'off' ) {
1.79 www 583: $stayOnPage=1;
584: }
1.44 bowersj2 585: $width = 350 if (not defined $width);
586: $height = 400 if (not defined $height);
587: my $filename = $topic;
588: $filename =~ s/ /_/g;
589:
1.48 bowersj2 590: my $template = "";
591: my $link;
1.159 www 592:
593: $topic=~s/\W/\_/g;
1.44 bowersj2 594:
595: if (!$stayOnPage)
596: {
1.72 bowersj2 597: $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
1.44 bowersj2 598: }
599: else
600: {
1.48 bowersj2 601: $link = "/adm/help/${filename}.hlp";
602: }
603:
604: # Add the text
605: if ($text ne "")
606: {
1.77 www 607: $template .=
608: "<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>".
1.78 www 609: "<td bgcolor='#5555FF'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.48 bowersj2 610: }
611:
612: # Add the graphic
1.179 matthew 613: my $title = &mt('Online Help');
1.48 bowersj2 614: $template .= <<"ENDTEMPLATE";
1.179 matthew 615: <a href="$link" title="$title"><image src="/adm/help/gif/smallHelp.gif" border="0" alt="(Help: $topic)" /></a>
1.44 bowersj2 616: ENDTEMPLATE
1.78 www 617: if ($text ne '') { $template.='</td></tr></table>' };
1.44 bowersj2 618: return $template;
619:
1.106 bowersj2 620: }
621:
622: # This is a quicky function for Latex cheatsheet editing, since it
623: # appears in at least four places
624: sub helpLatexCheatsheet {
625: my $other = shift;
626: my $addOther = '';
627: if ($other) {
628: $addOther = Apache::loncommon::help_open_topic($other, shift,
629: undef, undef, 600) .
630: '</td><td>';
631: }
632: return '<table><tr><td>'.
633: $addOther .
634: &Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols',
635: undef,undef,600)
636: .'</td><td>'.
637: &Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols',
638: undef,undef,600)
639: .'</td></tr></table>';
1.172 www 640: }
641:
1.193 raeburn 642: sub help_open_menu {
643: my ($color,$topic,$component_help,$function,$faq,$bug,$stayOnPage,$width,$height,$text) = @_;
644: $text = "" if (not defined $text);
645: $stayOnPage = 0 if (not defined $stayOnPage);
646: if ($ENV{'browser.interface'} eq 'textual' ||
647: $ENV{'environment.remote'} eq 'off' ) {
648: $stayOnPage=1;
649: }
650: $width = 620 if (not defined $width);
651: $height = 600 if (not defined $height);
652: my $link='';
1.201 raeburn 653: my $title = &mt('Get help');
1.193 raeburn 654: my $origurl = $ENV{'REQUEST_URI'};
655: my $timestamp = time;
656: foreach (\$color,\$function,\$topic,\$component_help,\$faq,\$bug,\$origurl) {
657: $$_ = &Apache::lonnet::escape($$_);
658: }
659:
1.195 albertel 660: if (!$stayOnPage) {
1.193 raeburn 661: $link = "javascript:helpMenu('open')";
1.195 albertel 662: } else {
1.193 raeburn 663: $link = "javascript:helpMenu('display')";
664: }
1.198 raeburn 665: 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 666: 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 667: my $template;
668: if ($text ne "") {
669: $template .=
670: "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
671: "<td bgcolor='#448844'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
672: }
673: $template .= <<"ENDTEMPLATE";
1.193 raeburn 674: <script>
675: function helpMenu(caller) {
676: if (caller == 'open') {
677: newWindow = window.open("","helpmenu","HEIGHT=$height,WIDTH=$width,resize=yes,scrollbars=yes" )
678: caller = newWindow.document
679: } else {
680: caller = this.document
681: }
682: caller.write("<html><head><title>LON-CAPA Help Menu</title><meta http-equiv='pragma' content='no-cache'></head>")
683: caller.write("<frameset rows='105,*' border='0'><frame name='bannerframe' src='$banner_link'><frame name='bodyframe' src='$details_link'></frameset>")
684: caller.write("</html>")
685: caller.close()
686: if (caller == newWindow.document) {
687: caller.focus()
688: }
689: }
690: </script>
1.204 raeburn 691: <a href="$link" title="$title"><image src="/adm/lonIcons/helpgateway.gif" border="0" alt="(Help Menu)" /></a>
1.193 raeburn 692: ENDTEMPLATE
1.203 albertel 693: if ($component_help) {
694: if (!$text) {
695: $template=&help_open_topic($component_help,undef,$stayOnPage,
696: $width,$height).' '.$template;
697: } else {
698: my $help_text;
699: $help_text=&Apache::lonnet::unescape($topic);
700: $template='<table><tr><td>'.
701: &help_open_topic($component_help,$help_text,$stayOnPage,
702: $width,$height).'</td><td>'.$template.
703: '</td></tr></table>';
704: }
705: }
1.196 albertel 706: if ($text ne '') { $template.='</td></tr></table>' };
1.193 raeburn 707: return $template;
708: }
709:
1.172 www 710: sub help_open_bug {
711: my ($topic, $text, $stayOnPage, $width, $height) = @_;
712: unless ($ENV{'user.adv'}) { return ''; }
713: unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }
714: $text = "" if (not defined $text);
715: $stayOnPage = 0 if (not defined $stayOnPage);
716: if ($ENV{'browser.interface'} eq 'textual' ||
717: $ENV{'environment.remote'} eq 'off' ) {
718: $stayOnPage=1;
719: }
1.184 albertel 720: $width = 600 if (not defined $width);
721: $height = 600 if (not defined $height);
1.172 www 722:
723: $topic=~s/\W+/\+/g;
724: my $link='';
725: my $template='';
726: my $url=$Apache::lonnet::perlvar{'BugzillaHost'}.'enter_bug.cgi?product=LON-CAPA&bug_file_loc='.
727: &Apache::lonnet::escape($ENV{'REQUEST_URI'}).'&component='.$topic;
728: if (!$stayOnPage)
729: {
730: $link = "javascript:void(open('$url', 'Bugzilla', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
731: }
732: else
733: {
734: $link = $url;
735: }
736: # Add the text
737: if ($text ne "")
738: {
739: $template .=
740: "<table bgcolor='#AA3333' cellspacing='1' cellpadding='1' border='0'><tr>".
741: "<td bgcolor='#FF5555'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
742: }
743:
744: # Add the graphic
1.179 matthew 745: my $title = &mt('Report a Bug');
1.172 www 746: $template .= <<"ENDTEMPLATE";
1.179 matthew 747: <a href="$link" title="$title"><image src="/adm/lonMisc/smallBug.gif" border="0" alt="(Bug: $topic)" /></a>
1.172 www 748: ENDTEMPLATE
749: if ($text ne '') { $template.='</td></tr></table>' };
750: return $template;
751:
752: }
753:
754: sub help_open_faq {
755: my ($topic, $text, $stayOnPage, $width, $height) = @_;
756: unless ($ENV{'user.adv'}) { return ''; }
757: unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }
758: $text = "" if (not defined $text);
759: $stayOnPage = 0 if (not defined $stayOnPage);
760: if ($ENV{'browser.interface'} eq 'textual' ||
761: $ENV{'environment.remote'} eq 'off' ) {
762: $stayOnPage=1;
763: }
764: $width = 350 if (not defined $width);
765: $height = 400 if (not defined $height);
766:
767: $topic=~s/\W+/\+/g;
768: my $link='';
769: my $template='';
770: my $url=$Apache::lonnet::perlvar{'FAQHost'}.'/fom/cache/'.$topic.'.html';
771: if (!$stayOnPage)
772: {
773: $link = "javascript:void(open('$url', 'FAQ-O-Matic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
774: }
775: else
776: {
777: $link = $url;
778: }
779:
780: # Add the text
781: if ($text ne "")
782: {
783: $template .=
1.173 www 784: "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
785: "<td bgcolor='#448844'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.172 www 786: }
787:
788: # Add the graphic
1.179 matthew 789: my $title = &mt('View the FAQ');
1.172 www 790: $template .= <<"ENDTEMPLATE";
1.179 matthew 791: <a href="$link" title="$title"><image src="/adm/lonMisc/smallFAQ.gif" border="0" alt="(FAQ: $topic)" /></a>
1.172 www 792: ENDTEMPLATE
793: if ($text ne '') { $template.='</td></tr></table>' };
794: return $template;
795:
1.44 bowersj2 796: }
1.37 matthew 797:
1.180 matthew 798: ###############################################################
799: ###############################################################
800:
1.45 matthew 801: =pod
802:
1.112 bowersj2 803: =item * csv_translate($text)
1.37 matthew 804:
1.185 www 805: Translate $text to allow it to be output as a 'comma separated values'
1.37 matthew 806: format.
807:
808: =cut
809:
1.180 matthew 810: ###############################################################
811: ###############################################################
1.37 matthew 812: sub csv_translate {
813: my $text = shift;
814: $text =~ s/\"/\"\"/g;
1.209 ! albertel 815: $text =~ s/\n/ /g;
1.37 matthew 816: return $text;
817: }
1.180 matthew 818:
819:
820: ###############################################################
821: ###############################################################
822:
823: =pod
824:
825: =item * define_excel_formats
826:
827: Define some commonly used Excel cell formats.
828:
829: Currently supported formats:
830:
831: =over 4
832:
833: =item header
834:
835: =item bold
836:
837: =item h1
838:
839: =item h2
840:
841: =item h3
842:
843: =item date
844:
845: =back
846:
847: Inputs: $workbook
848:
849: Returns: $format, a hash reference.
850:
851: =cut
852:
853: ###############################################################
854: ###############################################################
855: sub define_excel_formats {
856: my ($workbook) = @_;
857: my $format;
858: $format->{'header'} = $workbook->add_format(bold => 1,
859: bottom => 1,
860: align => 'center');
861: $format->{'bold'} = $workbook->add_format(bold=>1);
862: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
863: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
864: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
865: $format->{'date'} = $workbook->add_format(num_format=>
1.207 matthew 866: 'mm/dd/yyyy hh:mm:ss');
1.180 matthew 867: return $format;
868: }
869:
870: ###############################################################
871: ###############################################################
1.113 bowersj2 872:
873: =pod
874:
875: =item * change_content_javascript():
876:
877: This and the next function allow you to create small sections of an
878: otherwise static HTML page that you can update on the fly with
879: Javascript, even in Netscape 4.
880:
881: The Javascript fragment returned by this function (no E<lt>scriptE<gt> tag)
882: must be written to the HTML page once. It will prove the Javascript
883: function "change(name, content)". Calling the change function with the
884: name of the section
885: you want to update, matching the name passed to C<changable_area>, and
886: the new content you want to put in there, will put the content into
887: that area.
888:
889: B<Note>: Netscape 4 only reserves enough space for the changable area
890: to contain room for the original contents. You need to "make space"
891: for whatever changes you wish to make, and be B<sure> to check your
892: code in Netscape 4. This feature in Netscape 4 is B<not> powerful;
893: it's adequate for updating a one-line status display, but little more.
894: This script will set the space to 100% width, so you only need to
895: worry about height in Netscape 4.
896:
897: Modern browsers are much less limiting, and if you can commit to the
898: user not using Netscape 4, this feature may be used freely with
899: pretty much any HTML.
900:
901: =cut
902:
903: sub change_content_javascript {
904: # If we're on Netscape 4, we need to use Layer-based code
905: if ($ENV{'browser.type'} eq 'netscape' &&
906: $ENV{'browser.version'} =~ /^4\./) {
907: return (<<NETSCAPE4);
908: function change(name, content) {
909: doc = document.layers[name+"___escape"].layers[0].document;
910: doc.open();
911: doc.write(content);
912: doc.close();
913: }
914: NETSCAPE4
915: } else {
916: # Otherwise, we need to use semi-standards-compliant code
917: # (technically, "innerHTML" isn't standard but the equivalent
918: # is really scary, and every useful browser supports it
919: return (<<DOMBASED);
920: function change(name, content) {
921: element = document.getElementById(name);
922: element.innerHTML = content;
923: }
924: DOMBASED
925: }
926: }
927:
928: =pod
929:
930: =item * changable_area($name, $origContent):
931:
932: This provides a "changable area" that can be modified on the fly via
933: the Javascript code provided in C<change_content_javascript>. $name is
934: the name you will use to reference the area later; do not repeat the
935: same name on a given HTML page more then once. $origContent is what
936: the area will originally contain, which can be left blank.
937:
938: =cut
939:
940: sub changable_area {
941: my ($name, $origContent) = @_;
942:
943: if ($ENV{'browser.type'} eq 'netscape' &&
944: $ENV{'browser.version'} =~ /^4\./) {
945: # If this is netscape 4, we need to use the Layer tag
946: return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>";
947: } else {
948: return "<span id='$name'>$origContent</span>";
949: }
950: }
951:
952: =pod
953:
954: =back
955:
956: =cut
1.37 matthew 957:
958: ###############################################################
1.33 matthew 959: ## Home server <option> list generating code ##
960: ###############################################################
1.35 matthew 961:
1.45 matthew 962: =pod
963:
1.112 bowersj2 964: =head1 Home Server option list generating code
965:
966: =over 4
967:
968: =item * get_domains()
1.35 matthew 969:
970: Returns an array containing each of the domains listed in the hosts.tab
971: file.
972:
973: =cut
974:
975: #-------------------------------------------
1.34 matthew 976: sub get_domains {
977: # The code below was stolen from "The Perl Cookbook", p 102, 1st ed.
978: my @domains;
979: my %seen;
980: foreach (sort values(%Apache::lonnet::hostdom)) {
1.169 www 981: push (@domains,$_) unless $seen{$_}++;
1.34 matthew 982: }
983: return @domains;
984: }
1.88 www 985:
1.169 www 986: # ------------------------------------------
987:
988: sub domain_select {
989: my ($name,$value,$multiple)=@_;
990: my %domains=map {
991: $_ => $_.' '.$Apache::lonnet::domaindescription{$_}
992: } &get_domains;
993: if ($multiple) {
994: $domains{''}=&mt('Any domain');
1.191 matthew 995: return &multiple_select_form($name,$value,4,%domains);
1.169 www 996: } else {
997: return &select_form($name,$value,%domains);
998: }
999: }
1000:
1001: sub multiple_select_form {
1.191 matthew 1002: my ($name,$value,$size,%hash)=@_;
1.169 www 1003: my %selected = map { $_ => 1 } ref($value)?@{$value}:($value);
1004: my $output='';
1.191 matthew 1005: if (! defined($size)) {
1006: $size = 4;
1007: if (scalar(keys(%hash))<4) {
1008: $size = scalar(keys(%hash));
1009: }
1010: }
1.169 www 1011: $output.="\n<select name='$name' size='$size' multiple='1'>";
1.191 matthew 1012: foreach (sort(keys(%hash))) {
1013: $output.='<option value="'.$_.'" ';
1014: $output.='selected ' if ($selected{$_});
1015: $output.='>'.$hash{$_}."</option>\n";
1.169 www 1016: }
1017: $output.="</select>\n";
1018: return $output;
1019: }
1020:
1.88 www 1021: #-------------------------------------------
1022:
1023: =pod
1024:
1.112 bowersj2 1025: =item * select_form($defdom,$name,%hash)
1.88 www 1026:
1027: Returns a string containing a <select name='$name' size='1'> form to
1028: allow a user to select options from a hash option_name => displayed text.
1029: See lonrights.pm for an example invocation and use.
1030:
1031: =cut
1032:
1033: #-------------------------------------------
1034: sub select_form {
1035: my ($def,$name,%hash) = @_;
1036: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1.128 albertel 1037: my @keys;
1038: if (exists($hash{'select_form_order'})) {
1039: @keys=@{$hash{'select_form_order'}};
1040: } else {
1041: @keys=sort(keys(%hash));
1042: }
1043: foreach (@keys) {
1.88 www 1044: $selectform.="<option value=\"$_\" ".
1045: ($_ eq $def ? 'selected' : '').
1.119 www 1046: ">".&mt($hash{$_})."</option>\n";
1.88 www 1047: }
1048: $selectform.="</select>";
1049: return $selectform;
1050: }
1051:
1.167 www 1052: sub gradeleveldescription {
1053: my $gradelevel=shift;
1054: my %gradelevels=(0 => 'Not specified',
1055: 1 => 'Grade 1',
1056: 2 => 'Grade 2',
1057: 3 => 'Grade 3',
1058: 4 => 'Grade 4',
1059: 5 => 'Grade 5',
1060: 6 => 'Grade 6',
1061: 7 => 'Grade 7',
1062: 8 => 'Grade 8',
1063: 9 => 'Grade 9',
1064: 10 => 'Grade 10',
1065: 11 => 'Grade 11',
1066: 12 => 'Grade 12',
1067: 13 => 'Grade 13',
1068: 14 => '100 Level',
1069: 15 => '200 Level',
1070: 16 => '300 Level',
1071: 17 => '400 Level',
1072: 18 => 'Graduate Level');
1073: return &mt($gradelevels{$gradelevel});
1074: }
1075:
1.163 www 1076: sub select_level_form {
1077: my ($deflevel,$name)=@_;
1078: unless ($deflevel) { $deflevel=0; }
1.167 www 1079: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1080: for (my $i=0; $i<=18; $i++) {
1081: $selectform.="<option value=\"$i\" ".
1082: ($i==$deflevel ? 'selected' : '').
1083: ">".&gradeleveldescription($i)."</option>\n";
1084: }
1085: $selectform.="</select>";
1086: return $selectform;
1.163 www 1087: }
1.167 www 1088:
1.35 matthew 1089: #-------------------------------------------
1090:
1.45 matthew 1091: =pod
1092:
1.112 bowersj2 1093: =item * select_dom_form($defdom,$name,$includeempty)
1.35 matthew 1094:
1095: Returns a string containing a <select name='$name' size='1'> form to
1096: allow a user to select the domain to preform an operation in.
1097: See loncreateuser.pm for an example invocation and use.
1098:
1.90 www 1099: If the $includeempty flag is set, it also includes an empty choice ("no domain
1100: selected");
1101:
1.35 matthew 1102: =cut
1103:
1104: #-------------------------------------------
1.34 matthew 1105: sub select_dom_form {
1.90 www 1106: my ($defdom,$name,$includeempty) = @_;
1.34 matthew 1107: my @domains = get_domains();
1.90 www 1108: if ($includeempty) { @domains=('',@domains); }
1.34 matthew 1109: my $selectdomain = "<select name=\"$name\" size=\"1\">\n";
1110: foreach (@domains) {
1111: $selectdomain.="<option value=\"$_\" ".
1112: ($_ eq $defdom ? 'selected' : '').
1113: ">$_</option>\n";
1114: }
1115: $selectdomain.="</select>";
1116: return $selectdomain;
1117: }
1118:
1.35 matthew 1119: #-------------------------------------------
1120:
1.45 matthew 1121: =pod
1122:
1.112 bowersj2 1123: =item * get_library_servers($domain)
1.35 matthew 1124:
1125: Returns a hash which contains keys like '103l3' and values like
1126: 'kirk.lite.msu.edu'. All of the keys will be for machines in the
1127: given $domain.
1128:
1129: =cut
1130:
1131: #-------------------------------------------
1.52 matthew 1132: sub get_library_servers {
1.33 matthew 1133: my $domain = shift;
1.52 matthew 1134: my %library_servers;
1.33 matthew 1135: foreach (keys(%Apache::lonnet::libserv)) {
1136: if ($Apache::lonnet::hostdom{$_} eq $domain) {
1.52 matthew 1137: $library_servers{$_} = $Apache::lonnet::hostname{$_};
1.33 matthew 1138: }
1139: }
1.52 matthew 1140: return %library_servers;
1.33 matthew 1141: }
1142:
1.35 matthew 1143: #-------------------------------------------
1144:
1.45 matthew 1145: =pod
1146:
1.112 bowersj2 1147: =item * home_server_option_list($domain)
1.35 matthew 1148:
1149: returns a string which contains an <option> list to be used in a
1150: <select> form input. See loncreateuser.pm for an example.
1151:
1152: =cut
1153:
1154: #-------------------------------------------
1.33 matthew 1155: sub home_server_option_list {
1156: my $domain = shift;
1.52 matthew 1157: my %servers = &get_library_servers($domain);
1.33 matthew 1158: my $result = '';
1159: foreach (sort keys(%servers)) {
1160: $result.=
1161: '<option value="'.$_.'">'.$_.' '.$servers{$_}."</option>\n";
1162: }
1163: return $result;
1164: }
1.112 bowersj2 1165:
1166: =pod
1167:
1168: =back
1169:
1170: =cut
1.87 matthew 1171:
1172: ###############################################################
1.112 bowersj2 1173: ## Decoding User Agent ##
1.87 matthew 1174: ###############################################################
1175:
1176: =pod
1177:
1.112 bowersj2 1178: =head1 Decoding the User Agent
1179:
1180: =over 4
1181:
1182: =item * &decode_user_agent()
1.87 matthew 1183:
1184: Inputs: $r
1185:
1186: Outputs:
1187:
1188: =over 4
1189:
1.112 bowersj2 1190: =item * $httpbrowser
1.87 matthew 1191:
1.112 bowersj2 1192: =item * $clientbrowser
1.87 matthew 1193:
1.112 bowersj2 1194: =item * $clientversion
1.87 matthew 1195:
1.112 bowersj2 1196: =item * $clientmathml
1.87 matthew 1197:
1.112 bowersj2 1198: =item * $clientunicode
1.87 matthew 1199:
1.112 bowersj2 1200: =item * $clientos
1.87 matthew 1201:
1202: =back
1203:
1.157 matthew 1204: =back
1205:
1.87 matthew 1206: =cut
1207:
1208: ###############################################################
1209: ###############################################################
1210: sub decode_user_agent {
1211: my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});
1212: my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});
1213: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
1214: my $clientbrowser='unknown';
1215: my $clientversion='0';
1216: my $clientmathml='';
1217: my $clientunicode='0';
1218: for (my $i=0;$i<=$#browsertype;$i++) {
1219: my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
1220: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
1221: $clientbrowser=$bname;
1222: $httpbrowser=~/$vreg/i;
1223: $clientversion=$1;
1224: $clientmathml=($clientversion>=$minv);
1225: $clientunicode=($clientversion>=$univ);
1226: }
1227: }
1228: my $clientos='unknown';
1229: if (($httpbrowser=~/linux/i) ||
1230: ($httpbrowser=~/unix/i) ||
1231: ($httpbrowser=~/ux/i) ||
1232: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
1233: if (($httpbrowser=~/vax/i) ||
1234: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
1235: if ($httpbrowser=~/next/i) { $clientos='next'; }
1236: if (($httpbrowser=~/mac/i) ||
1237: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
1238: if ($httpbrowser=~/win/i) { $clientos='win'; }
1239: if ($httpbrowser=~/embed/i) { $clientos='pda'; }
1240: return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
1241: $clientunicode,$clientos,);
1242: }
1243:
1.32 matthew 1244: ###############################################################
1245: ## Authentication changing form generation subroutines ##
1246: ###############################################################
1247: ##
1248: ## All of the authform_xxxxxxx subroutines take their inputs in a
1249: ## hash, and have reasonable default values.
1250: ##
1251: ## formname = the name given in the <form> tag.
1.35 matthew 1252: #-------------------------------------------
1253:
1.45 matthew 1254: =pod
1255:
1.112 bowersj2 1256: =head1 Authentication Routines
1257:
1258: =over 4
1259:
1260: =item * authform_xxxxxx
1.35 matthew 1261:
1262: The authform_xxxxxx subroutines provide javascript and html forms which
1263: handle some of the conveniences required for authentication forms.
1264: This is not an optimal method, but it works.
1265:
1266: See loncreateuser.pm for invocation and use examples.
1267:
1268: =over 4
1269:
1.112 bowersj2 1270: =item * authform_header
1.35 matthew 1271:
1.112 bowersj2 1272: =item * authform_authorwarning
1.35 matthew 1273:
1.112 bowersj2 1274: =item * authform_nochange
1.35 matthew 1275:
1.112 bowersj2 1276: =item * authform_kerberos
1.35 matthew 1277:
1.112 bowersj2 1278: =item * authform_internal
1.35 matthew 1279:
1.112 bowersj2 1280: =item * authform_filesystem
1.35 matthew 1281:
1282: =back
1283:
1.157 matthew 1284: =back
1285:
1.35 matthew 1286: =cut
1287:
1288: #-------------------------------------------
1.32 matthew 1289: sub authform_header{
1290: my %in = (
1291: formname => 'cu',
1.80 albertel 1292: kerb_def_dom => '',
1.32 matthew 1293: @_,
1294: );
1295: $in{'formname'} = 'document.' . $in{'formname'};
1296: my $result='';
1.80 albertel 1297:
1298: #---------------------------------------------- Code for upper case translation
1299: my $Javascript_toUpperCase;
1300: unless ($in{kerb_def_dom}) {
1301: $Javascript_toUpperCase =<<"END";
1302: switch (choice) {
1303: case 'krb': currentform.elements[choicearg].value =
1304: currentform.elements[choicearg].value.toUpperCase();
1305: break;
1306: default:
1307: }
1308: END
1309: } else {
1310: $Javascript_toUpperCase = "";
1311: }
1312:
1.165 raeburn 1313: my $radioval = "'nochange'";
1.174 matthew 1314: if (exists($in{'curr_authtype'}) &&
1315: defined($in{'curr_authtype'}) &&
1316: $in{'curr_authtype'} ne '') {
1317: $radioval = "'$in{'curr_authtype'}arg'";
1318: }
1.165 raeburn 1319: my $argfield = 'null';
1320: if ( grep/^mode$/,(keys %in) ) {
1321: if ($in{'mode'} eq 'modifycourse') {
1322: if ( grep/^curr_authtype$/,(keys %in) ) {
1323: $radioval = "'$in{'curr_authtype'}'";
1324: }
1325: if ( grep/^curr_autharg$/,(keys %in) ) {
1326: unless ($in{'curr_autharg'} eq '') {
1327: $argfield = "'$in{'curr_autharg'}'";
1328: }
1329: }
1330: }
1331: }
1332:
1.32 matthew 1333: $result.=<<"END";
1334: var current = new Object();
1.165 raeburn 1335: current.radiovalue = $radioval;
1336: current.argfield = $argfield;
1.32 matthew 1337:
1338: function changed_radio(choice,currentform) {
1339: var choicearg = choice + 'arg';
1340: // If a radio button in changed, we need to change the argfield
1341: if (current.radiovalue != choice) {
1342: current.radiovalue = choice;
1343: if (current.argfield != null) {
1344: currentform.elements[current.argfield].value = '';
1345: }
1346: if (choice == 'nochange') {
1347: current.argfield = null;
1348: } else {
1349: current.argfield = choicearg;
1350: switch(choice) {
1351: case 'krb':
1352: currentform.elements[current.argfield].value =
1353: "$in{'kerb_def_dom'}";
1354: break;
1355: default:
1356: break;
1357: }
1358: }
1359: }
1360: return;
1361: }
1.22 www 1362:
1.32 matthew 1363: function changed_text(choice,currentform) {
1364: var choicearg = choice + 'arg';
1365: if (currentform.elements[choicearg].value !='') {
1.80 albertel 1366: $Javascript_toUpperCase
1.32 matthew 1367: // clear old field
1368: if ((current.argfield != choicearg) && (current.argfield != null)) {
1369: currentform.elements[current.argfield].value = '';
1370: }
1371: current.argfield = choicearg;
1372: }
1373: set_auth_radio_buttons(choice,currentform);
1374: return;
1.20 www 1375: }
1.32 matthew 1376:
1377: function set_auth_radio_buttons(newvalue,currentform) {
1378: var i=0;
1379: while (i < currentform.login.length) {
1380: if (currentform.login[i].value == newvalue) { break; }
1381: i++;
1382: }
1383: if (i == currentform.login.length) {
1384: return;
1385: }
1386: current.radiovalue = newvalue;
1387: currentform.login[i].checked = true;
1388: return;
1389: }
1390: END
1391: return $result;
1392: }
1393:
1394: sub authform_authorwarning{
1395: my $result='';
1.144 matthew 1396: $result='<i>'.
1397: &mt('As a general rule, only authors or co-authors should be '.
1398: 'filesystem authenticated '.
1399: '(which allows access to the server filesystem).')."</i>\n";
1.32 matthew 1400: return $result;
1401: }
1402:
1403: sub authform_nochange{
1404: my %in = (
1405: formname => 'document.cu',
1406: kerb_def_dom => 'MSU.EDU',
1407: @_,
1408: );
1.144 matthew 1409: my $result = &mt('[_1] Do not change login data',
1410: '<input type="radio" name="login" value="nochange" '.
1411: 'checked="checked" onclick="'.
1412: "javascript:changed_radio('nochange',$in{'formname'});".'" />');
1.32 matthew 1413: return $result;
1414: }
1415:
1416: sub authform_kerberos{
1417: my %in = (
1418: formname => 'document.cu',
1419: kerb_def_dom => 'MSU.EDU',
1.80 albertel 1420: kerb_def_auth => 'krb4',
1.32 matthew 1421: @_,
1422: );
1.165 raeburn 1423: my ($check4,$check5,$krbarg);
1.80 albertel 1424: if ($in{'kerb_def_auth'} eq 'krb5') {
1425: $check5 = " checked=\"on\"";
1426: } else {
1427: $check4 = " checked=\"on\"";
1428: }
1.165 raeburn 1429: $krbarg = $in{'kerb_def_dom'};
1430:
1431: my $krbcheck = "";
1432: if ( grep/^curr_authtype$/,(keys %in) ) {
1433: if ($in{'curr_authtype'} =~ m/^krb/) {
1434: $krbcheck = " checked=\"on\"";
1435: if ( grep/^curr_autharg$/,(keys %in) ) {
1436: $krbarg = $in{'curr_autharg'};
1437: }
1438: }
1439: }
1440:
1.144 matthew 1441: my $jscall = "javascript:changed_radio('krb',$in{'formname'});";
1442: my $result .= &mt
1443: ('[_1] Kerberos authenticated with domain [_2] '.
1444: '[_3] Version 4 [_4] Version 5',
1445: '<input type="radio" name="login" value="krb" '.
1.165 raeburn 1446: 'onclick="'.$jscall.'" onchange="'.$jscall.'"'.$krbcheck.' />',
1.144 matthew 1447: '<input type="text" size="10" name="krbarg" '.
1.165 raeburn 1448: 'value="'.$krbarg.'" '.
1.144 matthew 1449: 'onchange="'.$jscall.'" />',
1450: '<input type="radio" name="krbver" value="4" '.$check4.' />',
1451: '<input type="radio" name="krbver" value="5" '.$check5.' />');
1.32 matthew 1452: return $result;
1453: }
1454:
1455: sub authform_internal{
1456: my %args = (
1457: formname => 'document.cu',
1458: kerb_def_dom => 'MSU.EDU',
1459: @_,
1460: );
1.165 raeburn 1461:
1462: my $intcheck = "";
1463: my $intarg = 'value=""';
1464: if ( grep/^curr_authtype$/,(keys %args) ) {
1465: if ($args{'curr_authtype'} eq 'int') {
1466: $intcheck = " checked=\"on\"";
1467: if ( grep/^curr_autharg$/,(keys %args) ) {
1468: $intarg = "value=\"$args{'curr_autharg'}\"";
1469: }
1470: }
1471: }
1472:
1.144 matthew 1473: my $jscall = "javascript:changed_radio('int',$args{'formname'});";
1474: my $result.=&mt
1475: ('[_1] Internally authenticated (with initial password [_2])',
1.165 raeburn 1476: '<input type="radio" name="login" value="int" '.$intcheck.
1477: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1478: '<input type="text" size="10" name="intarg" '.$intarg.
1479: ' onchange="'.$jscall.'" />');
1.32 matthew 1480: return $result;
1481: }
1482:
1483: sub authform_local{
1484: my %in = (
1485: formname => 'document.cu',
1486: kerb_def_dom => 'MSU.EDU',
1487: @_,
1488: );
1.165 raeburn 1489:
1490: my $loccheck = "";
1491: my $locarg = 'value=""';
1492: if ( grep/^curr_authtype$/,(keys %in) ) {
1493: if ($in{'curr_authtype'} eq 'loc') {
1494: $loccheck = " checked=\"on\"";
1495: if ( grep/^curr_autharg$/,(keys %in) ) {
1496: $locarg = "value=\"$in{'curr_autharg'}\"";
1497: }
1498: }
1499: }
1500:
1.144 matthew 1501: my $jscall = "javascript:changed_radio('loc',$in{'formname'});";
1.160 matthew 1502: my $result.=&mt('[_1] Local Authentication with argument [_2]',
1.165 raeburn 1503: '<input type="radio" name="login" value="loc" '.$loccheck.
1504: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1505: '<input type="text" size="10" name="locarg" '.$locarg.
1506: ' onchange="'.$jscall.'" />');
1.32 matthew 1507: return $result;
1508: }
1509:
1510: sub authform_filesystem{
1511: my %in = (
1512: formname => 'document.cu',
1513: kerb_def_dom => 'MSU.EDU',
1514: @_,
1515: );
1.144 matthew 1516: my $jscall = "javascript:changed_radio('fsys',$in{'formname'});";
1517: my $result.= &mt
1518: ('[_1] Filesystem Authenticated (with initial password [_2])',
1519: '<input type="radio" name="login" value="fsys" '.
1520: 'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1521: '<input type="text" size="10" name="fsysarg" value="" '.
1522: 'onchange="'.$jscall.'" />');
1.32 matthew 1523: return $result;
1524: }
1525:
1.80 albertel 1526: ###############################################################
1527: ## Get Authentication Defaults for Domain ##
1528: ###############################################################
1529:
1530: =pod
1531:
1.112 bowersj2 1532: =head1 Domains and Authentication
1533:
1534: Returns default authentication type and an associated argument as
1535: listed in file 'domain.tab'.
1536:
1537: =over 4
1538:
1539: =item * get_auth_defaults
1.80 albertel 1540:
1541: get_auth_defaults($target_domain) returns the default authentication
1542: type and an associated argument (initial password or a kerberos domain).
1543: These values are stored in lonTabs/domain.tab
1544:
1545: ($def_auth, $def_arg) = &get_auth_defaults($target_domain);
1546:
1547: If target_domain is not found in domain.tab, returns nothing ('').
1548:
1549: =cut
1550:
1551: #-------------------------------------------
1552: sub get_auth_defaults {
1553: my $domain=shift;
1554: return ($Apache::lonnet::domain_auth_def{$domain},$Apache::lonnet::domain_auth_arg_def{$domain});
1555: }
1556: ###############################################################
1557: ## End Get Authentication Defaults for Domain ##
1558: ###############################################################
1559:
1560: ###############################################################
1561: ## Get Kerberos Defaults for Domain ##
1562: ###############################################################
1563: ##
1564: ## Returns default kerberos version and an associated argument
1565: ## as listed in file domain.tab. If not listed, provides
1566: ## appropriate default domain and kerberos version.
1567: ##
1568: #-------------------------------------------
1569:
1570: =pod
1571:
1.112 bowersj2 1572: =item * get_kerberos_defaults
1.80 albertel 1573:
1574: get_kerberos_defaults($target_domain) returns the default kerberos
1575: version and domain. If not found in domain.tabs, it defaults to
1576: version 4 and the domain of the server.
1577:
1578: ($def_version, $def_krb_domain) = &get_kerberos_defaults($target_domain);
1579:
1580: =cut
1581:
1582: #-------------------------------------------
1583: sub get_kerberos_defaults {
1584: my $domain=shift;
1585: my ($krbdef,$krbdefdom) =
1586: &Apache::loncommon::get_auth_defaults($domain);
1587: unless ($krbdef =~/^krb/ && $krbdefdom) {
1588: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
1589: my $krbdefdom=$1;
1590: $krbdefdom=~tr/a-z/A-Z/;
1591: $krbdef = "krb4";
1592: }
1593: return ($krbdef,$krbdefdom);
1594: }
1.112 bowersj2 1595:
1596: =pod
1597:
1598: =back
1599:
1600: =cut
1.32 matthew 1601:
1.46 matthew 1602: ###############################################################
1603: ## Thesaurus Functions ##
1604: ###############################################################
1.20 www 1605:
1.46 matthew 1606: =pod
1.20 www 1607:
1.112 bowersj2 1608: =head1 Thesaurus Functions
1609:
1610: =over 4
1611:
1612: =item * initialize_keywords
1.46 matthew 1613:
1614: Initializes the package variable %Keywords if it is empty. Uses the
1615: package variable $thesaurus_db_file.
1616:
1617: =cut
1618:
1619: ###################################################
1620:
1621: sub initialize_keywords {
1622: return 1 if (scalar keys(%Keywords));
1623: # If we are here, %Keywords is empty, so fill it up
1624: # Make sure the file we need exists...
1625: if (! -e $thesaurus_db_file) {
1626: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file".
1627: " failed because it does not exist");
1628: return 0;
1629: }
1630: # Set up the hash as a database
1631: my %thesaurus_db;
1632: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1633: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1634: &Apache::lonnet::logthis("Could not tie \%thesaurus_db to ".
1635: $thesaurus_db_file);
1636: return 0;
1637: }
1638: # Get the average number of appearances of a word.
1639: my $avecount = $thesaurus_db{'average.count'};
1640: # Put keywords (those that appear > average) into %Keywords
1641: while (my ($word,$data)=each (%thesaurus_db)) {
1642: my ($count,undef) = split /:/,$data;
1643: $Keywords{$word}++ if ($count > $avecount);
1644: }
1645: untie %thesaurus_db;
1646: # Remove special values from %Keywords.
1647: foreach ('total.count','average.count') {
1648: delete($Keywords{$_}) if (exists($Keywords{$_}));
1649: }
1650: return 1;
1651: }
1652:
1653: ###################################################
1654:
1655: =pod
1656:
1.112 bowersj2 1657: =item * keyword($word)
1.46 matthew 1658:
1659: Returns true if $word is a keyword. A keyword is a word that appears more
1660: than the average number of times in the thesaurus database. Calls
1661: &initialize_keywords
1662:
1663: =cut
1664:
1665: ###################################################
1.20 www 1666:
1667: sub keyword {
1.46 matthew 1668: return if (!&initialize_keywords());
1669: my $word=lc(shift());
1670: $word=~s/\W//g;
1671: return exists($Keywords{$word});
1.20 www 1672: }
1.46 matthew 1673:
1674: ###############################################################
1675:
1676: =pod
1.20 www 1677:
1.112 bowersj2 1678: =item * get_related_words
1.46 matthew 1679:
1.160 matthew 1680: Look up a word in the thesaurus. Takes a scalar argument and returns
1.46 matthew 1681: an array of words. If the keyword is not in the thesaurus, an empty array
1682: will be returned. The order of the words returned is determined by the
1683: database which holds them.
1684:
1685: Uses global $thesaurus_db_file.
1686:
1687: =cut
1688:
1689: ###############################################################
1690: sub get_related_words {
1691: my $keyword = shift;
1692: my %thesaurus_db;
1693: if (! -e $thesaurus_db_file) {
1694: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file ".
1695: "failed because the file does not exist");
1696: return ();
1697: }
1698: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1699: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1700: return ();
1701: }
1702: my @Words=();
1703: if (exists($thesaurus_db{$keyword})) {
1704: $_ = $thesaurus_db{$keyword};
1705: (undef,@Words) = split/:/; # The first element is the number of times
1706: # the word appears. We do not need it now.
1707: for (my $i=0;$i<=$#Words;$i++) {
1708: ($Words[$i],undef)= split/\,/,$Words[$i];
1.20 www 1709: }
1710: }
1.46 matthew 1711: untie %thesaurus_db;
1712: return @Words;
1.14 harris41 1713: }
1.46 matthew 1714:
1.112 bowersj2 1715: =pod
1716:
1717: =back
1718:
1719: =cut
1.61 www 1720:
1721: # -------------------------------------------------------------- Plaintext name
1.81 albertel 1722: =pod
1723:
1.112 bowersj2 1724: =head1 User Name Functions
1725:
1726: =over 4
1727:
1728: =item * plainname($uname,$udom)
1.81 albertel 1729:
1.112 bowersj2 1730: Takes a users logon name and returns it as a string in
1731: "first middle last generation" form
1.81 albertel 1732:
1733: =cut
1.61 www 1734:
1.81 albertel 1735: ###############################################################
1.61 www 1736: sub plainname {
1737: my ($uname,$udom)=@_;
1738: my %names=&Apache::lonnet::get('environment',
1739: ['firstname','middlename','lastname','generation'],
1740: $udom,$uname);
1.62 www 1741: my $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
1.61 www 1742: $names{'lastname'}.' '.$names{'generation'};
1.62 www 1743: $name=~s/\s+$//;
1744: $name=~s/\s+/ /g;
1.190 albertel 1745: if ($name !~ /\S/) { $name=$uname.'@'.$udom; }
1.62 www 1746: return $name;
1.61 www 1747: }
1.66 www 1748:
1749: # -------------------------------------------------------------------- Nickname
1.81 albertel 1750: =pod
1751:
1.112 bowersj2 1752: =item * nickname($uname,$udom)
1.81 albertel 1753:
1754: Gets a users name and returns it as a string as
1755:
1756: ""nickname""
1.66 www 1757:
1.81 albertel 1758: if the user has a nickname or
1759:
1760: "first middle last generation"
1761:
1762: if the user does not
1763:
1764: =cut
1.66 www 1765:
1766: sub nickname {
1767: my ($uname,$udom)=@_;
1768: my %names=&Apache::lonnet::get('environment',
1769: ['nickname','firstname','middlename','lastname','generation'],$udom,$uname);
1.68 albertel 1770: my $name=$names{'nickname'};
1.66 www 1771: if ($name) {
1772: $name='"'.$name.'"';
1773: } else {
1774: $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
1775: $names{'lastname'}.' '.$names{'generation'};
1776: $name=~s/\s+$//;
1777: $name=~s/\s+/ /g;
1778: }
1779: return $name;
1780: }
1781:
1.61 www 1782:
1783: # ------------------------------------------------------------------ Screenname
1.81 albertel 1784:
1785: =pod
1786:
1.112 bowersj2 1787: =item * screenname($uname,$udom)
1.81 albertel 1788:
1789: Gets a users screenname and returns it as a string
1790:
1791: =cut
1.61 www 1792:
1793: sub screenname {
1794: my ($uname,$udom)=@_;
1795: my %names=
1796: &Apache::lonnet::get('environment',['screenname'],$udom,$uname);
1.68 albertel 1797: return $names{'screenname'};
1.62 www 1798: }
1799:
1800: # ------------------------------------------------------------- Message Wrapper
1801:
1802: sub messagewrapper {
1.200 matthew 1803: my ($link,$username,$domain)=@_;
1.62 www 1804: return
1.200 matthew 1805: '<a href="/adm/email?compose=individual&'.
1806: 'recname='.$username.'&recdom='.$domain.'" '.
1807: 'title="'.&mt('Send message').'">'.$link.'</a>';
1.74 www 1808: }
1809: # --------------------------------------------------------------- Notes Wrapper
1810:
1811: sub noteswrapper {
1812: my ($link,$un,$do)=@_;
1813: return
1814: "<a href='/adm/email?recordftf=retrieve&recname=$un&recdom=$do'>$link</a>";
1.62 www 1815: }
1816: # ------------------------------------------------------------- Aboutme Wrapper
1817:
1818: sub aboutmewrapper {
1.166 www 1819: my ($link,$username,$domain,$target)=@_;
1.205 www 1820: return '<a href="/adm/'.$domain.'/'.$username.'/aboutme"'.
1.200 matthew 1821: ($target?' target="$target"':'').' title="'.&mt('View this users personal page').'">'.$link.'</a>';
1.62 www 1822: }
1823:
1824: # ------------------------------------------------------------ Syllabus Wrapper
1825:
1826:
1827: sub syllabuswrapper {
1.109 matthew 1828: my ($linktext,$coursedir,$domain,$fontcolor)=@_;
1829: if ($fontcolor) {
1830: $linktext='<font color="'.$fontcolor.'">'.$linktext.'</font>';
1831: }
1.208 matthew 1832: return qq{<a href="/public/$domain/$coursedir/syllabus">$linktext</a>};
1.61 www 1833: }
1.14 harris41 1834:
1.208 matthew 1835: sub track_student_link {
1836: my ($linktext,$sname,$sdom,$target) = @_;
1837: my $link ="/adm/trackstudent";
1838: my $title = 'View recent activity';
1839: if (defined($sname) && $sname !~ /^\s*$/ &&
1840: defined($sdom) && $sdom !~ /^\s*$/) {
1841: $link .= "?selected_student=$sname:$sdom";
1842: $title .= ' of this student';
1843: }
1844: if (defined($target) && $target !~ /^\s*$/) {
1845: $target = qq{target="$target"};
1846: } else {
1847: $target = '';
1848: }
1849: return qq{<a href="$link" title="$title" $target>$linktext</a>};
1850: }
1851:
1852:
1853:
1.112 bowersj2 1854: =pod
1855:
1856: =back
1857:
1858: =head1 Access .tab File Data
1859:
1860: =over 4
1861:
1862: =item * languageids()
1863:
1864: returns list of all language ids
1865:
1866: =cut
1867:
1.14 harris41 1868: sub languageids {
1.16 harris41 1869: return sort(keys(%language));
1.14 harris41 1870: }
1871:
1.112 bowersj2 1872: =pod
1873:
1874: =item * languagedescription()
1875:
1876: returns description of a specified language id
1877:
1878: =cut
1879:
1.14 harris41 1880: sub languagedescription {
1.125 www 1881: my $code=shift;
1882: return ($supported_language{$code}?'* ':'').
1883: $language{$code}.
1.126 www 1884: ($supported_language{$code}?' ('.&mt('interface available').')':'');
1.145 www 1885: }
1886:
1887: sub plainlanguagedescription {
1888: my $code=shift;
1889: return $language{$code};
1890: }
1891:
1892: sub supportedlanguagecode {
1893: my $code=shift;
1894: return $supported_language{$code};
1.97 www 1895: }
1896:
1.112 bowersj2 1897: =pod
1898:
1899: =item * copyrightids()
1900:
1901: returns list of all copyrights
1902:
1903: =cut
1904:
1905: sub copyrightids {
1906: return sort(keys(%cprtag));
1907: }
1908:
1909: =pod
1910:
1911: =item * copyrightdescription()
1912:
1913: returns description of a specified copyright id
1914:
1915: =cut
1916:
1917: sub copyrightdescription {
1.166 www 1918: return &mt($cprtag{shift(@_)});
1.112 bowersj2 1919: }
1.197 matthew 1920:
1921: =pod
1922:
1.192 taceyjo1 1923: =item * source_copyrightids()
1924:
1925: returns list of all source copyrights
1926:
1927: =cut
1928:
1929: sub source_copyrightids {
1930: return sort(keys(%scprtag));
1931: }
1932:
1933: =pod
1934:
1935: =item * source_copyrightdescription()
1936:
1937: returns description of a specified source copyright id
1938:
1939: =cut
1940:
1941: sub source_copyrightdescription {
1942: return &mt($scprtag{shift(@_)});
1943: }
1.112 bowersj2 1944:
1945: =pod
1946:
1947: =item * filecategories()
1948:
1949: returns list of all file categories
1950:
1951: =cut
1952:
1953: sub filecategories {
1954: return sort(keys(%category_extensions));
1955: }
1956:
1957: =pod
1958:
1959: =item * filecategorytypes()
1960:
1961: returns list of file types belonging to a given file
1962: category
1963:
1964: =cut
1965:
1966: sub filecategorytypes {
1967: return @{$category_extensions{lc($_[0])}};
1968: }
1969:
1970: =pod
1971:
1972: =item * fileembstyle()
1973:
1974: returns embedding style for a specified file type
1975:
1976: =cut
1977:
1978: sub fileembstyle {
1979: return $fe{lc(shift(@_))};
1.169 www 1980: }
1981:
1982:
1983: sub filecategoryselect {
1984: my ($name,$value)=@_;
1.189 matthew 1985: return &select_form($value,$name,
1.169 www 1986: '' => &mt('Any category'),
1987: map { $_,$_ } sort(keys(%category_extensions)));
1.112 bowersj2 1988: }
1989:
1990: =pod
1991:
1992: =item * filedescription()
1993:
1994: returns description for a specified file type
1995:
1996: =cut
1997:
1998: sub filedescription {
1.188 matthew 1999: my $file_description = $fd{lc(shift())};
2000: $file_description =~ s:([\[\]]):~$1:g;
2001: return &mt($file_description);
1.112 bowersj2 2002: }
2003:
2004: =pod
2005:
2006: =item * filedescriptionex()
2007:
2008: returns description for a specified file type with
2009: extra formatting
2010:
2011: =cut
2012:
2013: sub filedescriptionex {
2014: my $ex=shift;
1.188 matthew 2015: my $file_description = $fd{lc($ex)};
2016: $file_description =~ s:([\[\]]):~$1:g;
2017: return '.'.$ex.' '.&mt($file_description);
1.112 bowersj2 2018: }
2019:
2020: # End of .tab access
2021: =pod
2022:
2023: =back
2024:
2025: =cut
2026:
2027: # ------------------------------------------------------------------ File Types
2028: sub fileextensions {
2029: return sort(keys(%fe));
2030: }
2031:
1.97 www 2032: # ----------------------------------------------------------- Display Languages
2033: # returns a hash with all desired display languages
2034: #
2035:
2036: sub display_languages {
2037: my %languages=();
1.118 www 2038: foreach (&preferred_languages()) {
2039: $languages{$_}=1;
1.97 www 2040: }
2041: &get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']);
2042: if ($ENV{'form.displaylanguage'}) {
2043: foreach (split(/\s*(\,|\;|\:)\s*/,$ENV{'form.displaylanguage'})) {
2044: $languages{$_}=1;
2045: }
2046: }
2047: return %languages;
1.14 harris41 2048: }
2049:
1.117 www 2050: sub preferred_languages {
2051: my @languages=();
2052: if ($ENV{'course.'.$ENV{'request.course.id'}.'.languages'}) {
2053: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,
2054: $ENV{'course.'.$ENV{'request.course.id'}.'.languages'}));
1.177 www 2055: }
2056: if ($ENV{'environment.languages'}) {
2057: @languages=split(/\s*(\,|\;|\:)\s*/,$ENV{'environment.languages'});
1.118 www 2058: }
1.162 www 2059: my $browser=(split(/\;/,$ENV{'HTTP_ACCEPT_LANGUAGE'}))[0];
2060: if ($browser) {
2061: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$browser));
2062: }
1.118 www 2063: if ($Apache::lonnet::domain_lang_def{$ENV{'user.domain'}}) {
2064: @languages=(@languages,
2065: $Apache::lonnet::domain_lang_def{$ENV{'user.domain'}});
2066: }
2067: if ($Apache::lonnet::domain_lang_def{$ENV{'request.role.domain'}}) {
2068: @languages=(@languages,
2069: $Apache::lonnet::domain_lang_def{$ENV{'request.role.domain'}});
2070: }
2071: if ($Apache::lonnet::domain_lang_def{
2072: $Apache::lonnet::perlvar{'lonDefDomain'}}) {
2073: @languages=(@languages,
2074: $Apache::lonnet::domain_lang_def{
2075: $Apache::lonnet::perlvar{'lonDefDomain'}});
2076: }
2077: # turn "en-ca" into "en-ca,en"
2078: my @genlanguages;
2079: foreach (@languages) {
2080: unless ($_=~/\w/) { next; }
2081: push (@genlanguages,$_);
2082: if ($_=~/(\-|\_)/) {
2083: push (@genlanguages,(split(/(\-|\_)/,$_))[0]);
2084: }
2085: }
2086: return @genlanguages;
1.117 www 2087: }
2088:
1.112 bowersj2 2089: ###############################################################
2090: ## Student Answer Attempts ##
2091: ###############################################################
2092:
2093: =pod
2094:
2095: =head1 Alternate Problem Views
2096:
2097: =over 4
2098:
2099: =item * get_previous_attempt($symb, $username, $domain, $course,
2100: $getattempt, $regexp, $gradesub)
2101:
2102: Return string with previous attempt on problem. Arguments:
2103:
2104: =over 4
2105:
2106: =item * $symb: Problem, including path
2107:
2108: =item * $username: username of the desired student
2109:
2110: =item * $domain: domain of the desired student
1.14 harris41 2111:
1.112 bowersj2 2112: =item * $course: Course ID
1.14 harris41 2113:
1.112 bowersj2 2114: =item * $getattempt: Leave blank for all attempts, otherwise put
2115: something
1.14 harris41 2116:
1.112 bowersj2 2117: =item * $regexp: if string matches this regexp, the string will be
2118: sent to $gradesub
1.14 harris41 2119:
1.112 bowersj2 2120: =item * $gradesub: routine that processes the string if it matches $regexp
1.14 harris41 2121:
1.112 bowersj2 2122: =back
1.14 harris41 2123:
1.112 bowersj2 2124: The output string is a table containing all desired attempts, if any.
1.16 harris41 2125:
1.112 bowersj2 2126: =cut
1.1 albertel 2127:
2128: sub get_previous_attempt {
1.43 ng 2129: my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub)=@_;
1.1 albertel 2130: my $prevattempts='';
1.43 ng 2131: no strict 'refs';
1.1 albertel 2132: if ($symb) {
1.3 albertel 2133: my (%returnhash)=
2134: &Apache::lonnet::restore($symb,$course,$domain,$username);
1.1 albertel 2135: if ($returnhash{'version'}) {
2136: my %lasthash=();
2137: my $version;
2138: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.19 harris41 2139: foreach (sort(split(/\:/,$returnhash{$version.':keys'}))) {
1.1 albertel 2140: $lasthash{$_}=$returnhash{$version.':'.$_};
1.19 harris41 2141: }
1.1 albertel 2142: }
1.43 ng 2143: $prevattempts='<table border="0" width="100%"><tr><td bgcolor="#777777">';
1.40 ng 2144: $prevattempts.='<table border="0" width="100%"><tr bgcolor="#e6ffff"><td>History</td>';
1.16 harris41 2145: foreach (sort(keys %lasthash)) {
1.31 albertel 2146: my ($ign,@parts) = split(/\./,$_);
1.41 ng 2147: if ($#parts > 0) {
1.31 albertel 2148: my $data=$parts[-1];
2149: pop(@parts);
1.40 ng 2150: $prevattempts.='<td>Part '.join('.',@parts).'<br />'.$data.' </td>';
1.31 albertel 2151: } else {
1.41 ng 2152: if ($#parts == 0) {
2153: $prevattempts.='<th>'.$parts[0].'</th>';
2154: } else {
2155: $prevattempts.='<th>'.$ign.'</th>';
2156: }
1.31 albertel 2157: }
1.16 harris41 2158: }
1.40 ng 2159: if ($getattempt eq '') {
2160: for ($version=1;$version<=$returnhash{'version'};$version++) {
2161: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Transaction '.$version.'</td>';
2162: foreach (sort(keys %lasthash)) {
2163: my $value;
2164: if ($_ =~ /timestamp/) {
2165: $value=scalar(localtime($returnhash{$version.':'.$_}));
2166: } else {
2167: $value=$returnhash{$version.':'.$_};
2168: }
1.142 albertel 2169: $prevattempts.='<td>'.&Apache::lonnet::unescape($value).' </td>';
1.40 ng 2170: }
2171: }
1.1 albertel 2172: }
1.40 ng 2173: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Current</td>';
1.16 harris41 2174: foreach (sort(keys %lasthash)) {
1.5 albertel 2175: my $value;
2176: if ($_ =~ /timestamp/) {
2177: $value=scalar(localtime($lasthash{$_}));
2178: } else {
2179: $value=$lasthash{$_};
2180: }
1.142 albertel 2181: $value=&Apache::lonnet::unescape($value);
1.49 ng 2182: if ($_ =~/$regexp$/ && (defined &$gradesub)) {$value = &$gradesub($value)}
1.40 ng 2183: $prevattempts.='<td>'.$value.' </td>';
1.16 harris41 2184: }
1.40 ng 2185: $prevattempts.='</tr></table></td></tr></table>';
1.1 albertel 2186: } else {
2187: $prevattempts='Nothing submitted - no attempts.';
2188: }
2189: } else {
2190: $prevattempts='No data.';
2191: }
1.10 albertel 2192: }
2193:
1.107 albertel 2194: sub relative_to_absolute {
2195: my ($url,$output)=@_;
2196: my $parser=HTML::TokeParser->new(\$output);
2197: my $token;
2198: my $thisdir=$url;
2199: my @rlinks=();
2200: while ($token=$parser->get_token) {
2201: if ($token->[0] eq 'S') {
2202: if ($token->[1] eq 'a') {
2203: if ($token->[2]->{'href'}) {
2204: $rlinks[$#rlinks+1]=$token->[2]->{'href'};
2205: }
2206: } elsif ($token->[1] eq 'img' || $token->[1] eq 'embed' ) {
2207: $rlinks[$#rlinks+1]=$token->[2]->{'src'};
2208: } elsif ($token->[1] eq 'base') {
2209: $thisdir=$token->[2]->{'href'};
2210: }
2211: }
2212: }
2213: $thisdir=~s-/[^/]*$--;
2214: foreach (@rlinks) {
2215: unless (($_=~/^http:\/\//i) ||
2216: ($_=~/^\//) ||
2217: ($_=~/^javascript:/i) ||
2218: ($_=~/^mailto:/i) ||
2219: ($_=~/^\#/)) {
2220: my $newlocation=&Apache::lonnet::hreflocation($thisdir,$_);
2221: $output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/;
2222: }
2223: }
2224: # -------------------------------------------------- Deal with Applet codebases
2225: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
2226: return $output;
2227: }
2228:
1.112 bowersj2 2229: =pod
2230:
2231: =item * get_student_view
2232:
2233: show a snapshot of what student was looking at
2234:
2235: =cut
2236:
1.10 albertel 2237: sub get_student_view {
1.186 albertel 2238: my ($symb,$username,$domain,$courseid,$target,$moreenv) = @_;
1.114 www 2239: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2240: my (%form);
1.10 albertel 2241: my @elements=('symb','courseid','domain','username');
2242: foreach my $element (@elements) {
1.186 albertel 2243: $form{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2244: }
1.186 albertel 2245: if (defined($moreenv)) {
2246: %form=(%form,%{$moreenv});
2247: }
2248: if ($target eq 'tex') {$form{'grade_target'} = 'tex';}
1.107 albertel 2249: $feedurl=&Apache::lonnet::clutter($feedurl);
1.186 albertel 2250: my $userview=&Apache::lonnet::ssi_body($feedurl,%form);
1.11 albertel 2251: $userview=~s/\<body[^\>]*\>//gi;
2252: $userview=~s/\<\/body\>//gi;
2253: $userview=~s/\<html\>//gi;
2254: $userview=~s/\<\/html\>//gi;
2255: $userview=~s/\<head\>//gi;
2256: $userview=~s/\<\/head\>//gi;
2257: $userview=~s/action\s*\=/would_be_action\=/gi;
1.107 albertel 2258: $userview=&relative_to_absolute($feedurl,$userview);
1.11 albertel 2259: return $userview;
2260: }
2261:
1.112 bowersj2 2262: =pod
2263:
2264: =item * get_student_answers()
2265:
2266: show a snapshot of how student was answering problem
2267:
2268: =cut
2269:
1.11 albertel 2270: sub get_student_answers {
1.100 sakharuk 2271: my ($symb,$username,$domain,$courseid,%form) = @_;
1.114 www 2272: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2273: my (%moreenv);
1.11 albertel 2274: my @elements=('symb','courseid','domain','username');
2275: foreach my $element (@elements) {
1.186 albertel 2276: $moreenv{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2277: }
1.186 albertel 2278: $moreenv{'grade_target'}='answer';
2279: %moreenv=(%form,%moreenv);
2280: my $userview=&Apache::lonnet::ssi('/res/'.$feedurl,%moreenv);
1.10 albertel 2281: return $userview;
1.1 albertel 2282: }
1.116 albertel 2283:
2284: =pod
2285:
2286: =item * &submlink()
2287:
2288: Inputs: $text $uname $udom $symb
2289:
2290: Returns: A link to grades.pm such as to see the SUBM view of a student
2291:
2292: =cut
2293:
2294: ###############################################
2295: sub submlink {
2296: my ($text,$uname,$udom,$symb)=@_;
2297: if (!($uname && $udom)) {
2298: (my $cursymb, my $courseid,$udom,$uname)=
2299: &Apache::lonxml::whichuser($symb);
2300: if (!$symb) { $symb=$cursymb; }
2301: }
2302: if (!$symb) { $symb=&symbread(); }
2303: return '<a href="/adm/grades?symb='.$symb.'&student='.$uname.
2304: '&userdom='.$udom.'&command=submission">'.$text.'</a>';
2305: }
2306: ##############################################
1.37 matthew 2307:
1.112 bowersj2 2308: =pod
2309:
2310: =back
2311:
2312: =cut
2313:
1.37 matthew 2314: ###############################################
1.51 www 2315:
2316:
2317: sub timehash {
2318: my @ltime=localtime(shift);
2319: return ( 'seconds' => $ltime[0],
2320: 'minutes' => $ltime[1],
2321: 'hours' => $ltime[2],
2322: 'day' => $ltime[3],
2323: 'month' => $ltime[4]+1,
2324: 'year' => $ltime[5]+1900,
2325: 'weekday' => $ltime[6],
2326: 'dayyear' => $ltime[7]+1,
2327: 'dlsav' => $ltime[8] );
2328: }
2329:
2330: sub maketime {
2331: my %th=@_;
2332: return POSIX::mktime(
2333: ($th{'seconds'},$th{'minutes'},$th{'hours'},
2334: $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,$th{'dlsav'}));
1.70 www 2335: }
2336:
2337: #########################################
1.51 www 2338:
2339: sub findallcourses {
2340: my %courses=();
2341: my $now=time;
2342: foreach (keys %ENV) {
2343: if ($_=~/^user\.role\.\w+\.\/(\w+)\/(\w+)/) {
2344: my ($starttime,$endtime)=$ENV{$_};
2345: my $active=1;
2346: if ($starttime) {
2347: if ($now<$starttime) { $active=0; }
2348: }
2349: if ($endtime) {
2350: if ($now>$endtime) { $active=0; }
2351: }
2352: if ($active) { $courses{$1.'_'.$2}=1; }
2353: }
2354: }
2355: return keys %courses;
2356: }
1.37 matthew 2357:
1.54 www 2358: ###############################################
1.60 matthew 2359: ###############################################
2360:
2361: =pod
2362:
1.112 bowersj2 2363: =head1 Domain Template Functions
2364:
2365: =over 4
2366:
2367: =item * &determinedomain()
1.60 matthew 2368:
2369: Inputs: $domain (usually will be undef)
2370:
1.63 www 2371: Returns: Determines which domain should be used for designs
1.60 matthew 2372:
2373: =cut
1.54 www 2374:
1.60 matthew 2375: ###############################################
1.63 www 2376: sub determinedomain {
2377: my $domain=shift;
2378: if (! $domain) {
1.60 matthew 2379: # Determine domain if we have not been given one
2380: $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
2381: if ($ENV{'user.domain'}) { $domain=$ENV{'user.domain'}; }
2382: if ($ENV{'request.role.domain'}) {
2383: $domain=$ENV{'request.role.domain'};
2384: }
2385: }
1.63 www 2386: return $domain;
2387: }
2388: ###############################################
2389: =pod
2390:
1.112 bowersj2 2391: =item * &domainlogo()
1.63 www 2392:
2393: Inputs: $domain (usually will be undef)
2394:
2395: Returns: A link to a domain logo, if the domain logo exists.
2396: If the domain logo does not exist, a description of the domain.
2397:
2398: =cut
1.112 bowersj2 2399:
1.63 www 2400: ###############################################
2401: sub domainlogo {
2402: my $domain = &determinedomain(shift);
2403: # See if there is a logo
1.59 www 2404: if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') {
1.83 albertel 2405: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
2406: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
2407: return '<img src="http://'.$ENV{'HTTP_HOST'}.':'.$lonhttpdPort.
1.150 matthew 2408: '/adm/lonDomLogos/'.$domain.'.gif" alt="'.$domain.'" />';
1.60 matthew 2409: } elsif(exists($Apache::lonnet::domaindescription{$domain})) {
2410: return $Apache::lonnet::domaindescription{$domain};
1.59 www 2411: } else {
1.60 matthew 2412: return '';
1.59 www 2413: }
2414: }
1.63 www 2415: ##############################################
2416:
2417: =pod
2418:
1.112 bowersj2 2419: =item * &designparm()
1.63 www 2420:
2421: Inputs: $which parameter; $domain (usually will be undef)
2422:
2423: Returns: value of designparamter $which
2424:
2425: =cut
1.112 bowersj2 2426:
1.63 www 2427: ##############################################
2428: sub designparm {
2429: my ($which,$domain)=@_;
1.110 www 2430: if ($ENV{'browser.blackwhite'} eq 'on') {
2431: if ($which=~/\.(font|alink|vlink|link)$/) {
2432: return '#000000';
2433: }
2434: if ($which=~/\.(pgbg|sidebg)$/) {
2435: return '#FFFFFF';
2436: }
2437: if ($which=~/\.tabbg$/) {
2438: return '#CCCCCC';
2439: }
2440: }
1.96 www 2441: if ($ENV{'environment.color.'.$which}) {
2442: return $ENV{'environment.color.'.$which};
2443: }
1.63 www 2444: $domain=&determinedomain($domain);
2445: if ($designhash{$domain.'.'.$which}) {
2446: return $designhash{$domain.'.'.$which};
2447: } else {
2448: return $designhash{'default.'.$which};
2449: }
2450: }
1.59 www 2451:
1.60 matthew 2452: ###############################################
2453: ###############################################
2454:
2455: =pod
2456:
1.112 bowersj2 2457: =back
2458:
2459: =head1 HTTP Helpers
2460:
2461: =over 4
2462:
2463: =item * &bodytag()
1.60 matthew 2464:
2465: Returns a uniform header for LON-CAPA web pages.
2466:
2467: Inputs:
2468:
1.112 bowersj2 2469: =over 4
2470:
2471: =item * $title, A title to be displayed on the page.
2472:
2473: =item * $function, the current role (can be undef).
2474:
2475: =item * $addentries, extra parameters for the <body> tag.
2476:
2477: =item * $bodyonly, if defined, only return the <body> tag.
2478:
2479: =item * $domain, if defined, force a given domain.
2480:
2481: =item * $forcereg, if page should register as content page (relevant for
1.86 www 2482: text interface only)
1.60 matthew 2483:
1.112 bowersj2 2484: =back
2485:
1.60 matthew 2486: Returns: A uniform header for LON-CAPA web pages.
2487: If $bodyonly is nonzero, a string containing a <body> tag will be returned.
2488: If $bodyonly is undef or zero, an html string containing a <body> tag and
2489: other decorations will be returned.
2490:
2491: =cut
2492:
1.54 www 2493: sub bodytag {
1.86 www 2494: my ($title,$function,$addentries,$bodyonly,$domain,$forcereg)=@_;
1.117 www 2495: $title=&mt($title);
1.183 matthew 2496: $function = &get_users_function() if (!$function);
1.63 www 2497: my $img=&designparm($function.'.img',$domain);
2498: my $pgbg=&designparm($function.'.pgbg',$domain);
2499: my $tabbg=&designparm($function.'.tabbg',$domain);
2500: my $font=&designparm($function.'.font',$domain);
2501: my $link=&designparm($function.'.link',$domain);
2502: my $alink=&designparm($function.'.alink',$domain);
2503: my $vlink=&designparm($function.'.vlink',$domain);
2504: my $sidebg=&designparm($function.'.sidebg',$domain);
1.110 www 2505: # Accessibility font enhance
2506: unless ($addentries) { $addentries=''; }
1.146 www 2507: my $addstyle='';
1.110 www 2508: if ($ENV{'browser.fontenhance'} eq 'on') {
1.146 www 2509: $addstyle=' font-size: x-large;';
1.110 www 2510: }
1.63 www 2511: # role and realm
1.55 www 2512: my ($role,$realm)
2513: =&Apache::lonnet::plaintext((split(/\./,$ENV{'request.role'}))[0]);
2514: # realm
1.54 www 2515: if ($ENV{'request.course.id'}) {
1.55 www 2516: $realm=
2517: $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1.54 www 2518: }
1.55 www 2519: unless ($realm) { $realm=' '; }
2520: # Set messages
1.60 matthew 2521: my $messages=&domainlogo($domain);
1.101 www 2522: # Port for miniserver
1.83 albertel 2523: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
2524: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
1.101 www 2525: # construct main body tag
1.60 matthew 2526: my $bodytag = <<END;
1.146 www 2527: <style>
1.147 www 2528: h1, h2, h3, th { font-family: Arial, Helvetica, sans-serif }
1.146 www 2529: a:focus { color: red; background: yellow }
2530: </style>
1.54 www 2531: <body bgcolor="$pgbg" text="$font" alink="$alink" vlink="$vlink" link="$link"
1.151 www 2532: style="margin-top: 0px;$addstyle" $addentries>
1.60 matthew 2533: END
1.94 www 2534: my $upperleft='<img src="http://'.$ENV{'HTTP_HOST'}.':'.
1.150 matthew 2535: $lonhttpdPort.$img.'" alt="'.$function.'" />';
1.60 matthew 2536: if ($bodyonly) {
2537: return $bodytag;
1.79 www 2538: } elsif ($ENV{'browser.interface'} eq 'textual') {
1.95 www 2539: # Accessibility
1.93 www 2540: return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web',
2541: $forcereg).
2542: '<h1>LON-CAPA: '.$title.'</h1>';
2543: } elsif ($ENV{'environment.remote'} eq 'off') {
1.95 www 2544: # No Remote
1.206 albertel 2545: my $roleinfo=(<<ENDROLE);
2546: <td bgcolor="$tabbg" align="right">
2547: <p>
2548: <font size="2" face="Arial, Helvetica, sans-serif">
2549: $ENV{'environment.firstname'}
2550: $ENV{'environment.middlename'}
2551: $ENV{'environment.lastname'}
2552: $ENV{'environment.generation'}
2553: </font>
2554: <br />
2555: <font size="2" face="Arial, Helvetica, sans-serif">$role</font>
2556: <br />
2557: <font size="2" face="Arial, Helvetica, sans-serif">$realm</font>
2558: </p>
2559: </td>
2560: ENDROLE
1.95 www 2561: return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web',
2562: $forcereg).
1.206 albertel 2563: '<table bgcolor="'.$pgbg.'" width="100%" border="0" cellspacing="3" cellpadding="3"><tr><td rowspan="3" bgcolor="'.$tabbg.'"><font face="Arial, Helvetica, sans-serif" size="+3" color="'.$font.'"><b>'.$title.
2564: '</b></font></td>'.$roleinfo.'</tr></table>';
1.94 www 2565: }
1.95 www 2566:
1.93 www 2567: #
1.95 www 2568: # Top frame rendering, Remote is up
1.93 www 2569: #
1.94 www 2570: return(<<ENDBODY);
1.60 matthew 2571: $bodytag
1.55 www 2572: <table width="100%" cellspacing="0" border="0" cellpadding="0">
1.95 www 2573: <tr><td bgcolor="$sidebg">
1.94 www 2574: $upperleft</td>
1.95 www 2575: <td bgcolor="$sidebg" align="right">$messages </td>
1.55 www 2576: </tr>
1.54 www 2577: <tr>
1.55 www 2578: <td rowspan="3" bgcolor="$tabbg">
1.146 www 2579: <font size="5" face="Arial, Helvetica, sans-serif"><b>$title</b></font>
2580: <td bgcolor="$tabbg" align="right">
2581: <font size="2" face="Arial, Helvetica, sans-serif">
1.54 www 2582: $ENV{'environment.firstname'}
2583: $ENV{'environment.middlename'}
2584: $ENV{'environment.lastname'}
2585: $ENV{'environment.generation'}
1.55 www 2586: </font>
1.54 www 2587: </td>
2588: </tr>
2589: <tr><td bgcolor="$tabbg" align="right">
1.146 www 2590: <font size="2" face="Arial, Helvetica, sans-serif">$role</font>
1.54 www 2591: </td></tr>
1.55 www 2592: <tr>
1.148 www 2593: <td bgcolor="$tabbg" align="right"><font size="2" face="Arial, Helvetica, sans-serif">$realm</font> </td></tr>
1.202 albertel 2594: </table><br />
1.54 www 2595: ENDBODY
1.182 matthew 2596: }
2597:
2598: ###############################################
2599:
2600: =pod
2601:
2602: =item get_users_function
2603:
2604: Used by &bodytag to determine the current users primary role.
2605: Returns either 'student','coordinator','admin', or 'author'.
2606:
2607: =cut
2608:
2609: ###############################################
2610: sub get_users_function {
2611: my $function = 'student';
2612: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
2613: $function='coordinator';
2614: }
2615: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
2616: $function='admin';
2617: }
2618: if (($ENV{'request.role'}=~/^(au|ca)/) ||
2619: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
2620: $function='author';
2621: }
2622: return $function;
1.54 www 2623: }
1.99 www 2624:
2625: ###############################################
2626:
2627: sub get_posted_cgi {
2628: my $r=shift;
2629:
2630: my $buffer;
2631:
2632: $r->read($buffer,$r->header_in('Content-length'),0);
2633: unless ($buffer=~/^(\-+\w+)\s+Content\-Disposition\:\s*form\-data/si) {
2634: my @pairs=split(/&/,$buffer);
2635: my $pair;
2636: foreach $pair (@pairs) {
2637: my ($name,$value) = split(/=/,$pair);
2638: $value =~ tr/+/ /;
2639: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2640: $name =~ tr/+/ /;
2641: $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2642: &add_to_env("form.$name",$value);
2643: }
2644: } else {
2645: my $contentsep=$1;
2646: my @lines = split (/\n/,$buffer);
2647: my $name='';
2648: my $value='';
2649: my $fname='';
2650: my $fmime='';
2651: my $i;
2652: for ($i=0;$i<=$#lines;$i++) {
2653: if ($lines[$i]=~/^$contentsep/) {
2654: if ($name) {
2655: chomp($value);
2656: if ($fname) {
2657: $ENV{"form.$name.filename"}=$fname;
2658: $ENV{"form.$name.mimetype"}=$fmime;
2659: } else {
2660: $value=~s/\s+$//s;
2661: }
2662: &add_to_env("form.$name",$value);
2663: }
2664: if ($i<$#lines) {
2665: $i++;
2666: $lines[$i]=~
2667: /Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i;
2668: $name=$1;
2669: $value='';
2670: if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) {
2671: $fname=$1;
2672: if
2673: ($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) {
2674: $fmime=$1;
2675: $i++;
2676: } else {
2677: $fmime='';
2678: }
2679: } else {
2680: $fname='';
2681: $fmime='';
2682: }
2683: $i++;
2684: }
2685: } else {
2686: $value.=$lines[$i]."\n";
2687: }
2688: }
2689: }
2690: $ENV{'request.method'}=$ENV{'REQUEST_METHOD'};
2691: $r->method_number(M_GET);
2692: $r->method('GET');
2693: $r->headers_in->unset('Content-length');
2694: }
2695:
1.112 bowersj2 2696: =pod
2697:
2698: =item * get_unprocessed_cgi($query,$possible_names)
2699:
2700: Modify the %ENV hash to contain unprocessed CGI form parameters held in
2701: $query. The parameters listed in $possible_names (an array reference),
2702: will be set in $ENV{'form.name'} if they do not already exist.
2703:
2704: Typically called with $ENV{'QUERY_STRING'} as the first parameter.
2705: $possible_names is an ref to an array of form element names. As an example:
2706: get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);
2707: will result in $ENV{'form.uname'} and $ENV{'form.udom'} being set.
2708:
2709: =cut
1.1 albertel 2710:
1.6 albertel 2711: sub get_unprocessed_cgi {
1.25 albertel 2712: my ($query,$possible_names)= @_;
1.26 matthew 2713: # $Apache::lonxml::debug=1;
1.16 harris41 2714: foreach (split(/&/,$query)) {
1.6 albertel 2715: my ($name, $value) = split(/=/,$_);
1.25 albertel 2716: $name = &Apache::lonnet::unescape($name);
2717: if (!defined($possible_names) || (grep {$_ eq $name} @$possible_names)) {
2718: $value =~ tr/+/ /;
2719: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2720: &Apache::lonxml::debug("Seting :$name: to :$value:");
1.30 albertel 2721: unless (defined($ENV{'form.'.$name})) { &add_to_env('form.'.$name,$value) };
1.25 albertel 2722: }
1.16 harris41 2723: }
1.6 albertel 2724: }
2725:
1.112 bowersj2 2726: =pod
2727:
2728: =item * cacheheader()
2729:
2730: returns cache-controlling header code
2731:
2732: =cut
2733:
1.7 albertel 2734: sub cacheheader {
1.23 www 2735: unless ($ENV{'request.method'} eq 'GET') { return ''; }
1.8 albertel 2736: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
1.7 albertel 2737: my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
2738: <meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />
2739: <meta HTTP-EQUIV="Pragma" CONTENT="no-cache" />';
2740: return $output;
2741: }
2742:
1.112 bowersj2 2743: =pod
2744:
2745: =item * no_cache($r)
2746:
2747: specifies header code to not have cache
2748:
2749: =cut
2750:
1.9 albertel 2751: sub no_cache {
2752: my ($r) = @_;
1.23 www 2753: unless ($ENV{'request.method'} eq 'GET') { return ''; }
1.24 albertel 2754: #my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
1.9 albertel 2755: $r->no_cache(1);
2756: $r->header_out("Pragma" => "no-cache");
1.24 albertel 2757: #$r->header_out("Expires" => $date);
1.123 www 2758: }
2759:
2760: sub content_type {
1.181 albertel 2761: my ($r,$type,$charset) = @_;
2762: unless ($charset) {
2763: $charset=&Apache::lonlocal::current_encoding;
2764: }
2765: if ($charset) { $type.='; charset='.$charset; }
2766: if ($r) {
2767: $r->content_type($type);
2768: } else {
2769: print("Content-type: $type\n\n");
2770: }
1.9 albertel 2771: }
1.25 albertel 2772:
1.112 bowersj2 2773: =pod
2774:
2775: =item * add_to_env($name,$value)
2776:
2777: adds $name to the %ENV hash with value
2778: $value, if $name already exists, the entry is converted to an array
2779: reference and $value is added to the array.
2780:
2781: =cut
2782:
1.25 albertel 2783: sub add_to_env {
2784: my ($name,$value)=@_;
1.28 albertel 2785: if (defined($ENV{$name})) {
1.27 albertel 2786: if (ref($ENV{$name})) {
1.25 albertel 2787: #already have multiple values
2788: push(@{ $ENV{$name} },$value);
2789: } else {
2790: #first time seeing multiple values, convert hash entry to an arrayref
2791: my $first=$ENV{$name};
2792: undef($ENV{$name});
2793: push(@{ $ENV{$name} },$first,$value);
2794: }
2795: } else {
2796: $ENV{$name}=$value;
2797: }
1.31 albertel 2798: }
1.149 albertel 2799:
2800: =pod
2801:
2802: =item * get_env_multiple($name)
2803:
2804: gets $name from the %ENV hash, it seemlessly handles the cases where multiple
2805: values may be defined and end up as an array ref.
2806:
2807: returns an array of values
2808:
2809: =cut
2810:
2811: sub get_env_multiple {
2812: my ($name) = @_;
2813: my @values;
2814: if (defined($ENV{$name})) {
2815: # exists is it an array
2816: if (ref($ENV{$name})) {
2817: @values=@{ $ENV{$name} };
2818: } else {
2819: $values[0]=$ENV{$name};
2820: }
2821: }
2822: return(@values);
2823: }
2824:
1.31 albertel 2825:
1.41 ng 2826: =pod
1.45 matthew 2827:
2828: =back
1.41 ng 2829:
1.112 bowersj2 2830: =head1 CSV Upload/Handling functions
1.38 albertel 2831:
1.41 ng 2832: =over 4
2833:
1.112 bowersj2 2834: =item * upfile_store($r)
1.41 ng 2835:
2836: Store uploaded file, $r should be the HTTP Request object,
2837: needs $ENV{'form.upfile'}
2838: returns $datatoken to be put into hidden field
2839:
2840: =cut
1.31 albertel 2841:
2842: sub upfile_store {
2843: my $r=shift;
2844: $ENV{'form.upfile'}=~s/\r/\n/gs;
2845: $ENV{'form.upfile'}=~s/\f/\n/gs;
2846: $ENV{'form.upfile'}=~s/\n+/\n/gs;
2847: $ENV{'form.upfile'}=~s/\n+$//gs;
2848:
2849: my $datatoken=$ENV{'user.name'}.'_'.$ENV{'user.domain'}.
2850: '_enroll_'.$ENV{'request.course.id'}.'_'.time.'_'.$$;
2851: {
1.158 raeburn 2852: my $datafile = $r->dir_config('lonDaemons').
2853: '/tmp/'.$datatoken.'.tmp';
2854: if ( open(my $fh,">$datafile") ) {
2855: print $fh $ENV{'form.upfile'};
2856: close($fh);
2857: }
1.31 albertel 2858: }
2859: return $datatoken;
2860: }
2861:
1.56 matthew 2862: =pod
2863:
1.112 bowersj2 2864: =item * load_tmp_file($r)
1.41 ng 2865:
2866: Load uploaded file from tmp, $r should be the HTTP Request object,
2867: needs $ENV{'form.datatoken'},
2868: sets $ENV{'form.upfile'} to the contents of the file
2869:
2870: =cut
1.31 albertel 2871:
2872: sub load_tmp_file {
2873: my $r=shift;
2874: my @studentdata=();
2875: {
1.158 raeburn 2876: my $studentfile = $r->dir_config('lonDaemons').
2877: '/tmp/'.$ENV{'form.datatoken'}.'.tmp';
2878: if ( open(my $fh,"<$studentfile") ) {
2879: @studentdata=<$fh>;
2880: close($fh);
2881: }
1.31 albertel 2882: }
2883: $ENV{'form.upfile'}=join('',@studentdata);
2884: }
2885:
1.56 matthew 2886: =pod
2887:
1.112 bowersj2 2888: =item * upfile_record_sep()
1.41 ng 2889:
2890: Separate uploaded file into records
2891: returns array of records,
2892: needs $ENV{'form.upfile'} and $ENV{'form.upfiletype'}
2893:
2894: =cut
1.31 albertel 2895:
2896: sub upfile_record_sep {
2897: if ($ENV{'form.upfiletype'} eq 'xml') {
2898: } else {
2899: return split(/\n/,$ENV{'form.upfile'});
2900: }
2901: }
2902:
1.56 matthew 2903: =pod
2904:
1.112 bowersj2 2905: =item * record_sep($record)
1.41 ng 2906:
2907: Separate a record into fields $record should be an item from the upfile_record_sep(), needs $ENV{'form.upfiletype'}
2908:
2909: =cut
2910:
1.31 albertel 2911: sub record_sep {
2912: my $record=shift;
2913: my %components=();
2914: if ($ENV{'form.upfiletype'} eq 'xml') {
2915: } elsif ($ENV{'form.upfiletype'} eq 'space') {
2916: my $i=0;
2917: foreach (split(/\s+/,$record)) {
2918: my $field=$_;
2919: $field=~s/^(\"|\')//;
2920: $field=~s/(\"|\')$//;
2921: $components{$i}=$field;
2922: $i++;
2923: }
2924: } elsif ($ENV{'form.upfiletype'} eq 'tab') {
2925: my $i=0;
1.171 matthew 2926: foreach (split(/\t/,$record)) {
1.31 albertel 2927: my $field=$_;
2928: $field=~s/^(\"|\')//;
2929: $field=~s/(\"|\')$//;
2930: $components{$i}=$field;
2931: $i++;
2932: }
2933: } else {
2934: my @allfields=split(/\,/,$record);
2935: my $i=0;
2936: my $j;
2937: for ($j=0;$j<=$#allfields;$j++) {
2938: my $field=$allfields[$j];
2939: if ($field=~/^\s*(\"|\')/) {
2940: my $delimiter=$1;
2941: while (($field!~/$delimiter$/) && ($j<$#allfields)) {
2942: $j++;
2943: $field.=','.$allfields[$j];
2944: }
2945: $field=~s/^\s*$delimiter//;
2946: $field=~s/$delimiter\s*$//;
2947: }
2948: $components{$i}=$field;
2949: $i++;
2950: }
2951: }
2952: return %components;
2953: }
2954:
1.144 matthew 2955: ######################################################
2956: ######################################################
2957:
1.56 matthew 2958: =pod
2959:
1.112 bowersj2 2960: =item * upfile_select_html()
1.41 ng 2961:
1.144 matthew 2962: Return HTML code to select a file from the users machine and specify
2963: the file type.
1.41 ng 2964:
2965: =cut
2966:
1.144 matthew 2967: ######################################################
2968: ######################################################
1.31 albertel 2969: sub upfile_select_html {
1.144 matthew 2970: my %Types = (
2971: csv => &mt('CSV (comma separated values, spreadsheet)'),
2972: space => &mt('Space separated'),
2973: tab => &mt('Tabulator separated'),
2974: # xml => &mt('HTML/XML'),
2975: );
2976: my $Str = '<input type="file" name="upfile" size="50" />'.
2977: '<br />Type: <select name="upfiletype">';
2978: foreach my $type (sort(keys(%Types))) {
2979: $Str .= '<option value="'.$type.'" >'.$Types{$type}."</option>\n";
2980: }
2981: $Str .= "</select>\n";
2982: return $Str;
1.31 albertel 2983: }
2984:
1.144 matthew 2985: ######################################################
2986: ######################################################
2987:
1.56 matthew 2988: =pod
2989:
1.112 bowersj2 2990: =item * csv_print_samples($r,$records)
1.41 ng 2991:
2992: Prints a table of sample values from each column uploaded $r is an
2993: Apache Request ref, $records is an arrayref from
2994: &Apache::loncommon::upfile_record_sep
2995:
2996: =cut
2997:
1.144 matthew 2998: ######################################################
2999: ######################################################
1.31 albertel 3000: sub csv_print_samples {
3001: my ($r,$records) = @_;
3002: my (%sone,%stwo,%sthree);
3003: %sone=&record_sep($$records[0]);
3004: if (defined($$records[1])) {%stwo=&record_sep($$records[1]);}
3005: if (defined($$records[2])) {%sthree=&record_sep($$records[2]);}
1.144 matthew 3006: #
3007: $r->print(&mt('Samples').'<br /><table border="2"><tr>');
3008: foreach (sort({$a <=> $b} keys(%sone))) {
3009: $r->print('<th>'.&mt('Column [_1]',($_+1)).'</th>'); }
1.31 albertel 3010: $r->print('</tr>');
3011: foreach my $hash (\%sone,\%stwo,\%sthree) {
3012: $r->print('<tr>');
3013: foreach (sort({$a <=> $b} keys(%sone))) {
3014: $r->print('<td>');
3015: if (defined($$hash{$_})) { $r->print($$hash{$_}); }
3016: $r->print('</td>');
3017: }
3018: $r->print('</tr>');
3019: }
3020: $r->print('</tr></table><br />'."\n");
3021: }
3022:
1.144 matthew 3023: ######################################################
3024: ######################################################
3025:
1.56 matthew 3026: =pod
3027:
1.112 bowersj2 3028: =item * csv_print_select_table($r,$records,$d)
1.41 ng 3029:
3030: Prints a table to create associations between values and table columns.
1.144 matthew 3031:
1.41 ng 3032: $r is an Apache Request ref,
3033: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
1.174 matthew 3034: $d is an array of 2 element arrays (internal name, displayed name,defaultcol)
1.41 ng 3035:
3036: =cut
3037:
1.144 matthew 3038: ######################################################
3039: ######################################################
1.31 albertel 3040: sub csv_print_select_table {
3041: my ($r,$records,$d) = @_;
3042: my $i=0;my %sone;
3043: %sone=&record_sep($$records[0]);
1.144 matthew 3044: $r->print(&mt('Associate columns with student attributes.')."\n".
3045: '<table border="2"><tr>'.
3046: '<th>'.&mt('Attribute').'</th>'.
3047: '<th>'.&mt('Column').'</th></tr>'."\n");
1.31 albertel 3048: foreach (@$d) {
1.174 matthew 3049: my ($value,$display,$defaultcol)=@{ $_ };
1.31 albertel 3050: $r->print('<tr><td>'.$display.'</td>');
3051:
3052: $r->print('<td><select name=f'.$i.
1.32 matthew 3053: ' onchange="javascript:flip(this.form,'.$i.');">');
1.31 albertel 3054: $r->print('<option value="none"></option>');
3055: foreach (sort({$a <=> $b} keys(%sone))) {
1.174 matthew 3056: $r->print('<option value="'.$_.'"'.
3057: ($_ eq $defaultcol ? ' selected ' : '').
3058: '>Column '.($_+1).'</option>');
1.31 albertel 3059: }
3060: $r->print('</select></td></tr>'."\n");
3061: $i++;
3062: }
3063: $i--;
3064: return $i;
3065: }
1.56 matthew 3066:
1.144 matthew 3067: ######################################################
3068: ######################################################
3069:
1.56 matthew 3070: =pod
1.31 albertel 3071:
1.112 bowersj2 3072: =item * csv_samples_select_table($r,$records,$d)
1.41 ng 3073:
3074: Prints a table of sample values from the upload and can make associate samples to internal names.
3075:
3076: $r is an Apache Request ref,
3077: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
3078: $d is an array of 2 element arrays (internal name, displayed name)
3079:
3080: =cut
3081:
1.144 matthew 3082: ######################################################
3083: ######################################################
1.31 albertel 3084: sub csv_samples_select_table {
3085: my ($r,$records,$d) = @_;
3086: my %sone; my %stwo; my %sthree;
3087: my $i=0;
1.144 matthew 3088: #
3089: $r->print('<table border=2><tr><th>'.
3090: &mt('Field').'</th><th>'.&mt('Samples').'</th></tr>');
1.31 albertel 3091: %sone=&record_sep($$records[0]);
3092: if (defined($$records[1])) {%stwo=&record_sep($$records[1]);}
3093: if (defined($$records[2])) {%sthree=&record_sep($$records[2]);}
1.144 matthew 3094: #
1.31 albertel 3095: foreach (sort keys %sone) {
1.144 matthew 3096: $r->print('<tr><td><select name="f'.$i.'"'.
1.32 matthew 3097: ' onchange="javascript:flip(this.form,'.$i.');">');
1.31 albertel 3098: foreach (@$d) {
1.174 matthew 3099: my ($value,$display,$defaultcol)=@{ $_ };
3100: $r->print('<option value="'.$value.'"'.
3101: ($i eq $defaultcol ? ' selected ':'').'>'.
3102: $display.'</option>');
1.31 albertel 3103: }
3104: $r->print('</select></td><td>');
3105: if (defined($sone{$_})) { $r->print($sone{$_}."</br>\n"); }
3106: if (defined($stwo{$_})) { $r->print($stwo{$_}."</br>\n"); }
3107: if (defined($sthree{$_})) { $r->print($sthree{$_}."</br>\n"); }
3108: $r->print('</td></tr>');
3109: $i++;
3110: }
3111: $i--;
3112: return($i);
1.115 matthew 3113: }
3114:
1.144 matthew 3115: ######################################################
3116: ######################################################
3117:
1.115 matthew 3118: =pod
3119:
3120: =item clean_excel_name($name)
3121:
3122: Returns a replacement for $name which does not contain any illegal characters.
3123:
3124: =cut
3125:
1.144 matthew 3126: ######################################################
3127: ######################################################
1.115 matthew 3128: sub clean_excel_name {
3129: my ($name) = @_;
3130: $name =~ s/[:\*\?\/\\]//g;
3131: if (length($name) > 31) {
3132: $name = substr($name,0,31);
3133: }
3134: return $name;
1.25 albertel 3135: }
1.84 albertel 3136:
1.85 albertel 3137: =pod
3138:
1.112 bowersj2 3139: =item * check_if_partid_hidden($id,$symb,$udom,$uname)
1.85 albertel 3140:
3141: Returns either 1 or undef
3142:
3143: 1 if the part is to be hidden, undef if it is to be shown
3144:
3145: Arguments are:
3146:
3147: $id the id of the part to be checked
3148: $symb, optional the symb of the resource to check
3149: $udom, optional the domain of the user to check for
3150: $uname, optional the username of the user to check for
3151:
3152: =cut
1.84 albertel 3153:
3154: sub check_if_partid_hidden {
3155: my ($id,$symb,$udom,$uname) = @_;
1.133 albertel 3156: my $hiddenparts=&Apache::lonnet::EXT('resource.0.hiddenparts',
1.84 albertel 3157: $symb,$udom,$uname);
1.141 albertel 3158: my $truth=1;
3159: #if the string starts with !, then the list is the list to show not hide
3160: if ($hiddenparts=~s/^\s*!//) { $truth=undef; }
1.84 albertel 3161: my @hiddenlist=split(/,/,$hiddenparts);
3162: foreach my $checkid (@hiddenlist) {
1.141 albertel 3163: if ($checkid =~ /^\s*\Q$id\E\s*$/) { return $truth; }
1.84 albertel 3164: }
1.141 albertel 3165: return !$truth;
1.84 albertel 3166: }
1.127 matthew 3167:
1.138 matthew 3168:
3169: ############################################################
3170: ############################################################
3171:
3172: =pod
3173:
1.157 matthew 3174: =back
3175:
1.138 matthew 3176: =head1 cgi-bin script and graphing routines
3177:
1.157 matthew 3178: =over 4
3179:
1.138 matthew 3180: =item get_cgi_id
3181:
3182: Inputs: none
3183:
3184: Returns an id which can be used to pass environment variables
3185: to various cgi-bin scripts. These environment variables will
3186: be removed from the users environment after a given time by
3187: the routine &Apache::lonnet::transfer_profile_to_env.
3188:
3189: =cut
3190:
3191: ############################################################
3192: ############################################################
1.152 albertel 3193: my $uniq=0;
1.136 matthew 3194: sub get_cgi_id {
1.154 albertel 3195: $uniq=($uniq+1)%100000;
1.152 albertel 3196: return (time.'_'.$uniq);
1.136 matthew 3197: }
3198:
1.127 matthew 3199: ############################################################
3200: ############################################################
3201:
3202: =pod
3203:
1.134 matthew 3204: =item DrawBarGraph
1.127 matthew 3205:
1.138 matthew 3206: Facilitates the plotting of data in a (stacked) bar graph.
3207: Puts plot definition data into the users environment in order for
3208: graph.png to plot it. Returns an <img> tag for the plot.
3209: The bars on the plot are labeled '1','2',...,'n'.
3210:
3211: Inputs:
3212:
3213: =over 4
3214:
3215: =item $Title: string, the title of the plot
3216:
3217: =item $xlabel: string, text describing the X-axis of the plot
3218:
3219: =item $ylabel: string, text describing the Y-axis of the plot
3220:
3221: =item $Max: scalar, the maximum Y value to use in the plot
3222: If $Max is < any data point, the graph will not be rendered.
3223:
1.140 matthew 3224: =item $colors: array ref holding the colors to be used for the data sets when
1.138 matthew 3225: they are plotted. If undefined, default values will be used.
3226:
1.178 matthew 3227: =item $labels: array ref holding the labels to use on the x-axis for the bars.
3228:
1.138 matthew 3229: =item @Values: An array of array references. Each array reference holds data
3230: to be plotted in a stacked bar chart.
3231:
3232: =back
3233:
3234: Returns:
3235:
3236: An <img> tag which references graph.png and the appropriate identifying
3237: information for the plot.
3238:
1.127 matthew 3239: =cut
3240:
3241: ############################################################
3242: ############################################################
1.134 matthew 3243: sub DrawBarGraph {
1.178 matthew 3244: my ($Title,$xlabel,$ylabel,$Max,$colors,$labels,@Values)=@_;
1.134 matthew 3245: #
3246: if (! defined($colors)) {
3247: $colors = ['#33ff00',
3248: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
3249: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
3250: ];
3251: }
1.127 matthew 3252: #
1.136 matthew 3253: my $identifier = &get_cgi_id();
3254: my $id = 'cgi.'.$identifier;
1.129 matthew 3255: if (! @Values || ref($Values[0]) ne 'ARRAY') {
1.127 matthew 3256: return '';
3257: }
1.129 matthew 3258: my $NumBars = scalar(@{$Values[0]});
3259: my %ValuesHash;
3260: my $NumSets=1;
3261: foreach my $array (@Values) {
3262: next if (! ref($array));
1.136 matthew 3263: $ValuesHash{$id.'.data.'.$NumSets++} =
1.132 matthew 3264: join(',',@$array);
1.129 matthew 3265: }
1.127 matthew 3266: #
1.136 matthew 3267: my ($height,$width,$xskip,$bar_width) = (200,120,1,15);
3268: if ($NumBars < 10) {
3269: $width = 120+$NumBars*15;
3270: $xskip = 1;
3271: $bar_width = 15;
3272: } elsif ($NumBars <= 25) {
3273: $width = 120+$NumBars*11;
3274: $xskip = 5;
3275: $bar_width = 8;
3276: } elsif ($NumBars <= 50) {
3277: $width = 120+$NumBars*8;
3278: $xskip = 5;
3279: $bar_width = 4;
3280: } else {
3281: $width = 120+$NumBars*8;
3282: $xskip = 5;
3283: $bar_width = 4;
3284: }
3285: #
3286: my @Labels;
1.178 matthew 3287: if (defined($labels)) {
3288: @Labels = @$labels;
3289: } else {
3290: for (my $i=0;$i<@{$Values[0]};$i++) {
3291: push (@Labels,$i+1);
3292: }
1.136 matthew 3293: }
3294: #
1.137 matthew 3295: $Max = 1 if ($Max < 1);
3296: if ( int($Max) < $Max ) {
3297: $Max++;
3298: $Max = int($Max);
3299: }
1.127 matthew 3300: $Title = '' if (! defined($Title));
3301: $xlabel = '' if (! defined($xlabel));
3302: $ylabel = '' if (! defined($ylabel));
1.136 matthew 3303: $ValuesHash{$id.'.title'} = &Apache::lonnet::escape($Title);
3304: $ValuesHash{$id.'.xlabel'} = &Apache::lonnet::escape($xlabel);
3305: $ValuesHash{$id.'.ylabel'} = &Apache::lonnet::escape($ylabel);
1.137 matthew 3306: $ValuesHash{$id.'.y_max_value'} = $Max;
1.136 matthew 3307: $ValuesHash{$id.'.NumBars'} = $NumBars;
3308: $ValuesHash{$id.'.NumSets'} = $NumSets;
3309: $ValuesHash{$id.'.PlotType'} = 'bar';
3310: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
3311: $ValuesHash{$id.'.height'} = $height;
3312: $ValuesHash{$id.'.width'} = $width;
3313: $ValuesHash{$id.'.xskip'} = $xskip;
3314: $ValuesHash{$id.'.bar_width'} = $bar_width;
3315: $ValuesHash{$id.'.labels'} = join(',',@Labels);
1.127 matthew 3316: #
1.137 matthew 3317: &Apache::lonnet::appenv(%ValuesHash);
3318: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
3319: }
3320:
3321: ############################################################
3322: ############################################################
3323:
3324: =pod
3325:
3326: =item DrawXYGraph
3327:
1.138 matthew 3328: Facilitates the plotting of data in an XY graph.
3329: Puts plot definition data into the users environment in order for
3330: graph.png to plot it. Returns an <img> tag for the plot.
3331:
3332: Inputs:
3333:
3334: =over 4
3335:
3336: =item $Title: string, the title of the plot
3337:
3338: =item $xlabel: string, text describing the X-axis of the plot
3339:
3340: =item $ylabel: string, text describing the Y-axis of the plot
3341:
3342: =item $Max: scalar, the maximum Y value to use in the plot
3343: If $Max is < any data point, the graph will not be rendered.
3344:
3345: =item $colors: Array ref containing the hex color codes for the data to be
3346: plotted in. If undefined, default values will be used.
3347:
3348: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
3349:
3350: =item $Ydata: Array ref containing Array refs.
1.185 www 3351: Each of the contained arrays will be plotted as a separate curve.
1.138 matthew 3352:
3353: =item %Values: hash indicating or overriding any default values which are
3354: passed to graph.png.
3355: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
3356:
3357: =back
3358:
3359: Returns:
3360:
3361: An <img> tag which references graph.png and the appropriate identifying
3362: information for the plot.
3363:
1.137 matthew 3364: =cut
3365:
3366: ############################################################
3367: ############################################################
3368: sub DrawXYGraph {
3369: my ($Title,$xlabel,$ylabel,$Max,$colors,$Xlabels,$Ydata,%Values)=@_;
3370: #
3371: # Create the identifier for the graph
3372: my $identifier = &get_cgi_id();
3373: my $id = 'cgi.'.$identifier;
3374: #
3375: $Title = '' if (! defined($Title));
3376: $xlabel = '' if (! defined($xlabel));
3377: $ylabel = '' if (! defined($ylabel));
3378: my %ValuesHash =
3379: (
3380: $id.'.title' => &Apache::lonnet::escape($Title),
3381: $id.'.xlabel' => &Apache::lonnet::escape($xlabel),
3382: $id.'.ylabel' => &Apache::lonnet::escape($ylabel),
3383: $id.'.y_max_value'=> $Max,
3384: $id.'.labels' => join(',',@$Xlabels),
3385: $id.'.PlotType' => 'XY',
3386: );
3387: #
3388: if (defined($colors) && ref($colors) eq 'ARRAY') {
3389: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
3390: }
3391: #
3392: if (! ref($Ydata) || ref($Ydata) ne 'ARRAY') {
3393: return '';
3394: }
3395: my $NumSets=1;
1.138 matthew 3396: foreach my $array (@{$Ydata}){
1.137 matthew 3397: next if (! ref($array));
3398: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
3399: }
1.138 matthew 3400: $ValuesHash{$id.'.NumSets'} = $NumSets-1;
1.137 matthew 3401: #
3402: # Deal with other parameters
3403: while (my ($key,$value) = each(%Values)) {
3404: $ValuesHash{$id.'.'.$key} = $value;
1.127 matthew 3405: }
3406: #
1.136 matthew 3407: &Apache::lonnet::appenv(%ValuesHash);
3408: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
3409: }
3410:
3411: ############################################################
3412: ############################################################
3413:
3414: =pod
3415:
1.138 matthew 3416: =item DrawXYYGraph
3417:
3418: Facilitates the plotting of data in an XY graph with two Y axes.
3419: Puts plot definition data into the users environment in order for
3420: graph.png to plot it. Returns an <img> tag for the plot.
3421:
3422: Inputs:
3423:
3424: =over 4
3425:
3426: =item $Title: string, the title of the plot
3427:
3428: =item $xlabel: string, text describing the X-axis of the plot
3429:
3430: =item $ylabel: string, text describing the Y-axis of the plot
3431:
3432: =item $colors: Array ref containing the hex color codes for the data to be
3433: plotted in. If undefined, default values will be used.
3434:
3435: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
3436:
3437: =item $Ydata1: The first data set
3438:
3439: =item $Min1: The minimum value of the left Y-axis
3440:
3441: =item $Max1: The maximum value of the left Y-axis
3442:
3443: =item $Ydata2: The second data set
3444:
3445: =item $Min2: The minimum value of the right Y-axis
3446:
3447: =item $Max2: The maximum value of the left Y-axis
3448:
3449: =item %Values: hash indicating or overriding any default values which are
3450: passed to graph.png.
3451: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
3452:
3453: =back
3454:
3455: Returns:
3456:
3457: An <img> tag which references graph.png and the appropriate identifying
3458: information for the plot.
1.136 matthew 3459:
3460: =cut
3461:
3462: ############################################################
3463: ############################################################
1.137 matthew 3464: sub DrawXYYGraph {
3465: my ($Title,$xlabel,$ylabel,$colors,$Xlabels,$Ydata1,$Min1,$Max1,
3466: $Ydata2,$Min2,$Max2,%Values)=@_;
1.136 matthew 3467: #
3468: # Create the identifier for the graph
3469: my $identifier = &get_cgi_id();
3470: my $id = 'cgi.'.$identifier;
3471: #
3472: $Title = '' if (! defined($Title));
3473: $xlabel = '' if (! defined($xlabel));
3474: $ylabel = '' if (! defined($ylabel));
3475: my %ValuesHash =
3476: (
3477: $id.'.title' => &Apache::lonnet::escape($Title),
3478: $id.'.xlabel' => &Apache::lonnet::escape($xlabel),
3479: $id.'.ylabel' => &Apache::lonnet::escape($ylabel),
3480: $id.'.labels' => join(',',@$Xlabels),
3481: $id.'.PlotType' => 'XY',
3482: $id.'.NumSets' => 2,
1.137 matthew 3483: $id.'.two_axes' => 1,
3484: $id.'.y1_max_value' => $Max1,
3485: $id.'.y1_min_value' => $Min1,
3486: $id.'.y2_max_value' => $Max2,
3487: $id.'.y2_min_value' => $Min2,
1.136 matthew 3488: );
3489: #
1.137 matthew 3490: if (defined($colors) && ref($colors) eq 'ARRAY') {
3491: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
3492: }
3493: #
3494: if (! ref($Ydata1) || ref($Ydata1) ne 'ARRAY' ||
3495: ! ref($Ydata2) || ref($Ydata2) ne 'ARRAY'){
1.136 matthew 3496: return '';
3497: }
3498: my $NumSets=1;
1.137 matthew 3499: foreach my $array ($Ydata1,$Ydata2){
1.136 matthew 3500: next if (! ref($array));
3501: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
1.137 matthew 3502: }
3503: #
3504: # Deal with other parameters
3505: while (my ($key,$value) = each(%Values)) {
3506: $ValuesHash{$id.'.'.$key} = $value;
1.136 matthew 3507: }
3508: #
3509: &Apache::lonnet::appenv(%ValuesHash);
1.130 albertel 3510: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
1.139 matthew 3511: }
3512:
3513: ############################################################
3514: ############################################################
3515:
3516: =pod
3517:
1.157 matthew 3518: =back
3519:
1.139 matthew 3520: =head1 Statistics helper routines?
3521:
3522: Bad place for them but what the hell.
3523:
1.157 matthew 3524: =over 4
3525:
1.139 matthew 3526: =item &chartlink
3527:
3528: Returns a link to the chart for a specific student.
3529:
3530: Inputs:
3531:
3532: =over 4
3533:
3534: =item $linktext: The text of the link
3535:
3536: =item $sname: The students username
3537:
3538: =item $sdomain: The students domain
3539:
3540: =back
3541:
1.157 matthew 3542: =back
3543:
1.139 matthew 3544: =cut
3545:
3546: ############################################################
3547: ############################################################
3548: sub chartlink {
3549: my ($linktext, $sname, $sdomain) = @_;
3550: my $link = '<a href="/adm/statistics?reportSelected=student_assessment'.
3551: '&SelectedStudent='.&Apache::lonnet::escape($sname.':'.$sdomain).
3552: '&chartoutputmode='.HTML::Entities::encode('html, with all links').
3553: '">'.$linktext.'</a>';
1.153 matthew 3554: }
3555:
3556: #######################################################
3557: #######################################################
3558:
3559: =pod
3560:
3561: =head1 Course Environment Routines
1.157 matthew 3562:
3563: =over 4
1.153 matthew 3564:
3565: =item &restore_course_settings
3566:
3567: =item &store_course_settings
3568:
3569: Restores/Store indicated form parameters from the course environment.
3570: Will not overwrite existing values of the form parameters.
3571:
3572: Inputs:
3573: a scalar describing the data (e.g. 'chart', 'problem_analysis')
3574:
3575: a hash ref describing the data to be stored. For example:
3576:
3577: %Save_Parameters = ('Status' => 'scalar',
3578: 'chartoutputmode' => 'scalar',
3579: 'chartoutputdata' => 'scalar',
3580: 'Section' => 'array',
3581: 'StudentData' => 'array',
3582: 'Maps' => 'array');
3583:
3584: Returns: both routines return nothing
3585:
3586: =cut
3587:
3588: #######################################################
3589: #######################################################
3590: sub store_course_settings {
3591: # save to the environment
3592: # appenv the same items, just to be safe
3593: my $courseid = $ENV{'request.course.id'};
3594: my $coursedom = $ENV{'course.'.$courseid.'.domain'};
3595: my ($prefix,$Settings) = @_;
3596: my %SaveHash;
3597: my %AppHash;
3598: while (my ($setting,$type) = each(%$Settings)) {
1.176 albertel 3599: my $basename = 'internal.'.$prefix.'.'.$setting;
1.153 matthew 3600: my $envname = 'course.'.$courseid.'.'.$basename;
3601: if (exists($ENV{'form.'.$setting})) {
3602: # Save this value away
3603: if ($type eq 'scalar' &&
3604: (! exists($ENV{$envname}) ||
3605: $ENV{$envname} ne $ENV{'form.'.$setting})) {
3606: $SaveHash{$basename} = $ENV{'form.'.$setting};
3607: $AppHash{$envname} = $ENV{'form.'.$setting};
3608: } elsif ($type eq 'array') {
3609: my $stored_form;
3610: if (ref($ENV{'form.'.$setting})) {
3611: $stored_form = join(',',
3612: map {
3613: &Apache::lonnet::escape($_);
3614: } sort(@{$ENV{'form.'.$setting}}));
3615: } else {
3616: $stored_form =
3617: &Apache::lonnet::escape($ENV{'form.'.$setting});
3618: }
3619: # Determine if the array contents are the same.
3620: if ($stored_form ne $ENV{$envname}) {
3621: $SaveHash{$basename} = $stored_form;
3622: $AppHash{$envname} = $stored_form;
3623: }
3624: }
3625: }
3626: }
3627: my $put_result = &Apache::lonnet::put('environment',\%SaveHash,
3628: $coursedom,
3629: $ENV{'course.'.$courseid.'.num'});
3630: if ($put_result !~ /^(ok|delayed)/) {
3631: &Apache::lonnet::logthis('unable to save form parameters, '.
3632: 'got error:'.$put_result);
3633: }
3634: # Make sure these settings stick around in this session, too
3635: &Apache::lonnet::appenv(%AppHash);
3636: return;
3637: }
3638:
3639: sub restore_course_settings {
3640: my $courseid = $ENV{'request.course.id'};
3641: my ($prefix,$Settings) = @_;
3642: while (my ($setting,$type) = each(%$Settings)) {
3643: next if (exists($ENV{'form.'.$setting}));
1.176 albertel 3644: my $envname = 'course.'.$courseid.'.internal.'.$prefix.
1.153 matthew 3645: '.'.$setting;
3646: if (exists($ENV{$envname})) {
3647: if ($type eq 'scalar') {
3648: $ENV{'form.'.$setting} = $ENV{$envname};
3649: } elsif ($type eq 'array') {
3650: $ENV{'form.'.$setting} = [
3651: map {
3652: &Apache::lonnet::unescape($_);
3653: } split(',',$ENV{$envname})
3654: ];
3655: }
3656: }
3657: }
1.127 matthew 3658: }
3659:
3660: ############################################################
3661: ############################################################
1.154 albertel 3662:
3663: sub propath {
3664: my ($udom,$uname)=@_;
3665: $udom=~s/\W//g;
3666: $uname=~s/\W//g;
3667: my $subdir=$uname.'__';
3668: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
3669: my $proname="$Apache::lonnet::perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
3670: return $proname;
1.156 albertel 3671: }
3672:
3673: sub icon {
3674: my ($file)=@_;
1.168 albertel 3675: my $curfext = (split(/\./,$file))[-1];
3676: my $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/unknown.gif';
1.156 albertel 3677: my $embstyle = &Apache::loncommon::fileembstyle($curfext);
1.168 albertel 3678: if (!(!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn')) {
3679: if (-e $Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
3680: $Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
3681: $curfext.".gif") {
3682: $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
3683: $curfext.".gif";
3684: }
3685: }
3686: return $iconname;
1.154 albertel 3687: }
1.84 albertel 3688:
1.41 ng 3689: =pod
3690:
3691: =back
3692:
1.112 bowersj2 3693: =cut
1.41 ng 3694:
1.112 bowersj2 3695: 1;
3696: __END__;
1.41 ng 3697:
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