Annotation of loncom/interface/loncommon.pm, revision 1.196
1.10 albertel 1: # The LearningOnline Network with CAPA
1.1 albertel 2: # a pile of common routines
1.10 albertel 3: #
1.196 ! albertel 4: # $Id: loncommon.pm,v 1.195 2004/07/03 19:12:41 albertel Exp $
1.10 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.1 albertel 28:
29: # Makes a table out of the previous attempts
1.2 albertel 30: # Inputs result_from_symbread, user, domain, course_id
1.16 harris41 31: # Reads in non-network-related .tab files
1.1 albertel 32:
1.35 matthew 33: # POD header:
34:
1.45 matthew 35: =pod
36:
1.35 matthew 37: =head1 NAME
38:
39: Apache::loncommon - pile of common routines
40:
41: =head1 SYNOPSIS
42:
1.112 bowersj2 43: Common routines for manipulating connections, student answers,
44: domains, common Javascript fragments, etc.
1.35 matthew 45:
1.112 bowersj2 46: =head1 OVERVIEW
1.35 matthew 47:
1.112 bowersj2 48: A collection of commonly used subroutines that don't have a natural
49: home anywhere else. This collection helps remove
1.35 matthew 50: redundancy from other modules and increase efficiency of memory usage.
51:
52: =cut
53:
54: # End of POD header
1.1 albertel 55: package Apache::loncommon;
56:
57: use strict;
1.22 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 {
1.170 www 253: my $resurl=&lastresurl();
1.42 matthew 254: return <<END;
1.50 matthew 255: var editbrowser = null;
1.135 albertel 256: function openbrowser(formname,elementname,only,omit,titleelement) {
1.170 www 257: var url = '$resurl/?';
1.42 matthew 258: if (editbrowser == null) {
259: url += 'launch=1&';
260: }
261: url += 'catalogmode=interactive&';
262: url += 'mode=edit&';
263: url += 'form=' + formname + '&';
264: if (only != null) {
265: url += 'only=' + only + '&';
266: }
267: if (omit != null) {
268: url += 'omit=' + omit + '&';
269: }
1.135 albertel 270: if (titleelement != null) {
271: url += 'titleelement=' + titleelement + '&';
272: }
1.42 matthew 273: url += 'element=' + elementname + '';
274: var title = 'Browser';
275: var options = 'scrollbars=1,resizable=1,menubar=0';
276: options += ',width=700,height=600';
277: editbrowser = open(url,title,options,'1');
278: editbrowser.focus();
279: }
280: var editsearcher;
1.135 albertel 281: function opensearcher(formname,elementname,titleelement) {
1.42 matthew 282: var url = '/adm/searchcat?';
283: if (editsearcher == null) {
284: url += 'launch=1&';
285: }
286: url += 'catalogmode=interactive&';
287: url += 'mode=edit&';
288: url += 'form=' + formname + '&';
1.135 albertel 289: if (titleelement != null) {
290: url += 'titleelement=' + titleelement + '&';
291: }
1.42 matthew 292: url += 'element=' + elementname + '';
293: var title = 'Search';
294: var options = 'scrollbars=1,resizable=1,menubar=0';
295: options += ',width=700,height=600';
296: editsearcher = open(url,title,options,'1');
297: editsearcher.focus();
298: }
299: END
1.170 www 300: }
301:
302: sub lastresurl {
303: if ($ENV{'environment.lastresurl'}) {
304: return $ENV{'environment.lastresurl'}
305: } else {
306: return '/res';
307: }
308: }
309:
310: sub storeresurl {
311: my $resurl=&Apache::lonnet::clutter(shift);
312: unless ($resurl=~/^\/res/) { return 0; }
313: $resurl=~s/\/$//;
314: &Apache::lonnet::put('environment',{'lastresurl' => $resurl});
315: &Apache::lonnet::appenv('environment.lastresurl' => $resurl);
316: return 1;
1.42 matthew 317: }
318:
1.74 www 319: sub studentbrowser_javascript {
1.111 www 320: unless (
321: (($ENV{'request.course.id'}) &&
322: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})))
323: || ($ENV{'request.role'}=~/^(au|dc|su)/)
324: ) { return ''; }
1.74 www 325: return (<<'ENDSTDBRW');
326: <script type="text/javascript" language="Javascript" >
327: var stdeditbrowser;
1.111 www 328: function openstdbrowser(formname,uname,udom,roleflag) {
1.74 www 329: var url = '/adm/pickstudent?';
330: var filter;
331: eval('filter=document.'+formname+'.'+uname+'.value;');
332: if (filter != null) {
333: if (filter != '') {
334: url += 'filter='+filter+'&';
335: }
336: }
337: url += 'form=' + formname + '&unameelement='+uname+
338: '&udomelement='+udom;
1.111 www 339: if (roleflag) { url+="&roles=1"; }
1.102 www 340: var title = 'Student_Browser';
1.74 www 341: var options = 'scrollbars=1,resizable=1,menubar=0';
342: options += ',width=700,height=600';
343: stdeditbrowser = open(url,title,options,'1');
344: stdeditbrowser.focus();
345: }
346: </script>
347: ENDSTDBRW
348: }
1.42 matthew 349:
1.74 www 350: sub selectstudent_link {
1.111 www 351: my ($form,$unameele,$udomele)=@_;
352: if ($ENV{'request.course.id'}) {
353: unless (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
354: return '';
355: }
356: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
1.119 www 357: '","'.$udomele.'");'."'>".&mt('Select User')."</a>";
1.74 www 358: }
1.111 www 359: if ($ENV{'request.role'}=~/^(au|dc|su)/) {
360: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
1.119 www 361: '","'.$udomele.'",1);'."'>".&mt('Select User')."</a>";
1.111 www 362: }
363: return '';
1.91 www 364: }
365:
366: sub coursebrowser_javascript {
1.128 albertel 367: my ($domainfilter)=@_;
368: return (<<ENDSTDBRW);
1.91 www 369: <script type="text/javascript" language="Javascript" >
370: var stdeditbrowser;
1.187 albertel 371: function opencrsbrowser(formname,uname,udom,desc) {
1.91 www 372: var url = '/adm/pickcourse?';
373: var filter;
374: if (filter != null) {
375: if (filter != '') {
376: url += 'filter='+filter+'&';
377: }
378: }
1.128 albertel 379: var domainfilter='$domainfilter';
380: if (domainfilter != null) {
381: if (domainfilter != '') {
382: url += 'domainfilter='+domainfilter+'&';
383: }
384: }
1.91 www 385: url += 'form=' + formname + '&cnumelement='+uname+
1.187 albertel 386: '&cdomelement='+udom+
387: '&cnameelement='+desc;
1.102 www 388: var title = 'Course_Browser';
1.91 www 389: var options = 'scrollbars=1,resizable=1,menubar=0';
390: options += ',width=700,height=600';
391: stdeditbrowser = open(url,title,options,'1');
392: stdeditbrowser.focus();
393: }
394: </script>
395: ENDSTDBRW
396: }
397:
398: sub selectcourse_link {
1.187 albertel 399: my ($form,$unameele,$udomele,$desc)=@_;
1.91 www 400: return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele.
1.187 albertel 401: '","'.$udomele.'","'.$desc.'");'."'>".&mt('Select Course')."</a>";
1.74 www 402: }
1.42 matthew 403:
404: =pod
1.36 matthew 405:
1.112 bowersj2 406: =item * linked_select_forms(...)
1.36 matthew 407:
408: linked_select_forms returns a string containing a <script></script> block
409: and html for two <select> menus. The select menus will be linked in that
410: changing the value of the first menu will result in new values being placed
411: in the second menu. The values in the select menu will appear in alphabetical
412: order.
413:
414: linked_select_forms takes the following ordered inputs:
415:
416: =over 4
417:
1.112 bowersj2 418: =item * $formname, the name of the <form> tag
1.36 matthew 419:
1.112 bowersj2 420: =item * $middletext, the text which appears between the <select> tags
1.36 matthew 421:
1.112 bowersj2 422: =item * $firstdefault, the default value for the first menu
1.36 matthew 423:
1.112 bowersj2 424: =item * $firstselectname, the name of the first <select> tag
1.36 matthew 425:
1.112 bowersj2 426: =item * $secondselectname, the name of the second <select> tag
1.36 matthew 427:
1.112 bowersj2 428: =item * $hashref, a reference to a hash containing the data for the menus.
1.36 matthew 429:
1.41 ng 430: =back
431:
1.36 matthew 432: Below is an example of such a hash. Only the 'text', 'default', and
433: 'select2' keys must appear as stated. keys(%menu) are the possible
434: values for the first select menu. The text that coincides with the
1.41 ng 435: first menu value is given in $menu{$choice1}->{'text'}. The values
1.36 matthew 436: and text for the second menu are given in the hash pointed to by
437: $menu{$choice1}->{'select2'}.
438:
1.112 bowersj2 439: my %menu = ( A1 => { text =>"Choice A1" ,
440: default => "B3",
441: select2 => {
442: B1 => "Choice B1",
443: B2 => "Choice B2",
444: B3 => "Choice B3",
445: B4 => "Choice B4"
446: }
447: },
448: A2 => { text =>"Choice A2" ,
449: default => "C2",
450: select2 => {
451: C1 => "Choice C1",
452: C2 => "Choice C2",
453: C3 => "Choice C3"
454: }
455: },
456: A3 => { text =>"Choice A3" ,
457: default => "D6",
458: select2 => {
459: D1 => "Choice D1",
460: D2 => "Choice D2",
461: D3 => "Choice D3",
462: D4 => "Choice D4",
463: D5 => "Choice D5",
464: D6 => "Choice D6",
465: D7 => "Choice D7"
466: }
467: }
468: );
1.36 matthew 469:
470: =cut
471:
472: sub linked_select_forms {
473: my ($formname,
474: $middletext,
475: $firstdefault,
476: $firstselectname,
477: $secondselectname,
478: $hashref
479: ) = @_;
480: my $second = "document.$formname.$secondselectname";
481: my $first = "document.$formname.$firstselectname";
482: # output the javascript to do the changing
483: my $result = '';
484: $result.="<script>\n";
485: $result.="var select2data = new Object();\n";
486: $" = '","';
487: my $debug = '';
488: foreach my $s1 (sort(keys(%$hashref))) {
489: $result.="select2data.d_$s1 = new Object();\n";
490: $result.="select2data.d_$s1.def = new String('".
491: $hashref->{$s1}->{'default'}."');\n";
492: $result.="select2data.d_$s1.values = new Array(";
493: my @s2values = sort(keys( %{ $hashref->{$s1}->{'select2'} } ));
494: $result.="\"@s2values\");\n";
495: $result.="select2data.d_$s1.texts = new Array(";
496: my @s2texts;
497: foreach my $value (@s2values) {
498: push @s2texts, $hashref->{$s1}->{'select2'}->{$value};
499: }
500: $result.="\"@s2texts\");\n";
501: }
502: $"=' ';
503: $result.= <<"END";
504:
505: function select1_changed() {
506: // Determine new choice
507: var newvalue = "d_" + $first.value;
508: // update select2
509: var values = select2data[newvalue].values;
510: var texts = select2data[newvalue].texts;
511: var select2def = select2data[newvalue].def;
512: var i;
513: // out with the old
514: for (i = 0; i < $second.options.length; i++) {
515: $second.options[i] = null;
516: }
517: // in with the nuclear
518: for (i=0;i<values.length; i++) {
519: $second.options[i] = new Option(values[i]);
1.143 matthew 520: $second.options[i].value = values[i];
1.36 matthew 521: $second.options[i].text = texts[i];
522: if (values[i] == select2def) {
523: $second.options[i].selected = true;
524: }
525: }
526: }
527: </script>
528: END
529: # output the initial values for the selection lists
530: $result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed()\">\n";
531: foreach my $value (sort(keys(%$hashref))) {
532: $result.=" <option value=\"$value\" ";
533: $result.=" selected=\"true\" " if ($value eq $firstdefault);
1.119 www 534: $result.=">".&mt($hashref->{$value}->{'text'})."</option>\n";
1.36 matthew 535: }
536: $result .= "</select>\n";
537: my %select2 = %{$hashref->{$firstdefault}->{'select2'}};
538: $result .= $middletext;
539: $result .= "<select size=\"1\" name=\"$secondselectname\">\n";
540: my $seconddefault = $hashref->{$firstdefault}->{'default'};
541: foreach my $value (sort(keys(%select2))) {
542: $result.=" <option value=\"$value\" ";
543: $result.=" selected=\"true\" " if ($value eq $seconddefault);
1.119 www 544: $result.=">".&mt($select2{$value})."</option>\n";
1.36 matthew 545: }
546: $result .= "</select>\n";
547: # return $debug;
548: return $result;
549: } # end of sub linked_select_forms {
550:
1.45 matthew 551: =pod
1.44 bowersj2 552:
1.112 bowersj2 553: =item * help_open_topic($topic, $text, $stayOnPage, $width, $height)
1.44 bowersj2 554:
1.112 bowersj2 555: Returns a string corresponding to an HTML link to the given help
556: $topic, where $topic corresponds to the name of a .tex file in
557: /home/httpd/html/adm/help/tex, with underscores replaced by
558: spaces.
559:
560: $text will optionally be linked to the same topic, allowing you to
561: link text in addition to the graphic. If you do not want to link
562: text, but wish to specify one of the later parameters, pass an
563: empty string.
564:
565: $stayOnPage is a value that will be interpreted as a boolean. If true,
566: the link will not open a new window. If false, the link will open
567: a new window using Javascript. (Default is false.)
568:
569: $width and $height are optional numerical parameters that will
570: override the width and height of the popped up window, which may
571: be useful for certain help topics with big pictures included.
1.44 bowersj2 572:
573: =cut
574:
575: sub help_open_topic {
1.48 bowersj2 576: my ($topic, $text, $stayOnPage, $width, $height) = @_;
577: $text = "" if (not defined $text);
1.44 bowersj2 578: $stayOnPage = 0 if (not defined $stayOnPage);
1.108 bowersj2 579: if ($ENV{'browser.interface'} eq 'textual' ||
580: $ENV{'environment.remote'} eq 'off' ) {
1.79 www 581: $stayOnPage=1;
582: }
1.44 bowersj2 583: $width = 350 if (not defined $width);
584: $height = 400 if (not defined $height);
585: my $filename = $topic;
586: $filename =~ s/ /_/g;
587:
1.48 bowersj2 588: my $template = "";
589: my $link;
1.159 www 590:
591: $topic=~s/\W/\_/g;
1.44 bowersj2 592:
593: if (!$stayOnPage)
594: {
1.72 bowersj2 595: $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
1.44 bowersj2 596: }
597: else
598: {
1.48 bowersj2 599: $link = "/adm/help/${filename}.hlp";
600: }
601:
602: # Add the text
603: if ($text ne "")
604: {
1.77 www 605: $template .=
606: "<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>".
1.78 www 607: "<td bgcolor='#5555FF'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.48 bowersj2 608: }
609:
610: # Add the graphic
1.179 matthew 611: my $title = &mt('Online Help');
1.48 bowersj2 612: $template .= <<"ENDTEMPLATE";
1.179 matthew 613: <a href="$link" title="$title"><image src="/adm/help/gif/smallHelp.gif" border="0" alt="(Help: $topic)" /></a>
1.44 bowersj2 614: ENDTEMPLATE
1.78 www 615: if ($text ne '') { $template.='</td></tr></table>' };
1.44 bowersj2 616: return $template;
617:
1.106 bowersj2 618: }
619:
620: # This is a quicky function for Latex cheatsheet editing, since it
621: # appears in at least four places
622: sub helpLatexCheatsheet {
623: my $other = shift;
624: my $addOther = '';
625: if ($other) {
626: $addOther = Apache::loncommon::help_open_topic($other, shift,
627: undef, undef, 600) .
628: '</td><td>';
629: }
630: return '<table><tr><td>'.
631: $addOther .
632: &Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols',
633: undef,undef,600)
634: .'</td><td>'.
635: &Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols',
636: undef,undef,600)
637: .'</td></tr></table>';
1.172 www 638: }
639:
1.193 raeburn 640: sub help_open_menu {
641: my ($color,$topic,$component_help,$function,$faq,$bug,$stayOnPage,$width,$height,$text) = @_;
642: $text = "" if (not defined $text);
643: $stayOnPage = 0 if (not defined $stayOnPage);
644: if ($ENV{'browser.interface'} eq 'textual' ||
645: $ENV{'environment.remote'} eq 'off' ) {
646: $stayOnPage=1;
647: }
648: $width = 620 if (not defined $width);
649: $height = 600 if (not defined $height);
650: my $link='';
651: my $title = &mt('Choose your help');
652: my $origurl = $ENV{'REQUEST_URI'};
653: my $timestamp = time;
654: foreach (\$color,\$function,\$topic,\$component_help,\$faq,\$bug,\$origurl) {
655: $$_ = &Apache::lonnet::escape($$_);
656: }
657:
1.195 albertel 658: if (!$stayOnPage) {
1.193 raeburn 659: $link = "javascript:helpMenu('open')";
1.195 albertel 660: } else {
1.193 raeburn 661: $link = "javascript:helpMenu('display')";
662: }
663: 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";
664: 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 665: my $template;
! 666: if ($text ne "") {
! 667: $template .=
! 668: "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
! 669: "<td bgcolor='#448844'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
! 670: }
! 671: $template .= <<"ENDTEMPLATE";
1.193 raeburn 672: <script>
673: function helpMenu(caller) {
674: if (caller == 'open') {
675: newWindow = window.open("","helpmenu","HEIGHT=$height,WIDTH=$width,resize=yes,scrollbars=yes" )
676: caller = newWindow.document
677: } else {
678: caller = this.document
679: }
680: caller.write("<html><head><title>LON-CAPA Help Menu</title><meta http-equiv='pragma' content='no-cache'></head>")
681: caller.write("<frameset rows='105,*' border='0'><frame name='bannerframe' src='$banner_link'><frame name='bodyframe' src='$details_link'></frameset>")
682: caller.write("</html>")
683: caller.close()
684: if (caller == newWindow.document) {
685: caller.focus()
686: }
687: }
688: </script>
689: <a href="$link" title="$title"><image src="/adm/lonMisc/smallFAQ.gif" border="0" alt="(Help Menu)" /></a>
690: ENDTEMPLATE
1.196 ! albertel 691: if ($text ne '') { $template.='</td></tr></table>' };
1.193 raeburn 692: return $template;
693: }
694:
1.172 www 695: sub help_open_bug {
696: my ($topic, $text, $stayOnPage, $width, $height) = @_;
697: unless ($ENV{'user.adv'}) { return ''; }
698: unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }
699: $text = "" if (not defined $text);
700: $stayOnPage = 0 if (not defined $stayOnPage);
701: if ($ENV{'browser.interface'} eq 'textual' ||
702: $ENV{'environment.remote'} eq 'off' ) {
703: $stayOnPage=1;
704: }
1.184 albertel 705: $width = 600 if (not defined $width);
706: $height = 600 if (not defined $height);
1.172 www 707:
708: $topic=~s/\W+/\+/g;
709: my $link='';
710: my $template='';
711: my $url=$Apache::lonnet::perlvar{'BugzillaHost'}.'enter_bug.cgi?product=LON-CAPA&bug_file_loc='.
712: &Apache::lonnet::escape($ENV{'REQUEST_URI'}).'&component='.$topic;
713: if (!$stayOnPage)
714: {
715: $link = "javascript:void(open('$url', 'Bugzilla', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
716: }
717: else
718: {
719: $link = $url;
720: }
721: # Add the text
722: if ($text ne "")
723: {
724: $template .=
725: "<table bgcolor='#AA3333' cellspacing='1' cellpadding='1' border='0'><tr>".
726: "<td bgcolor='#FF5555'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
727: }
728:
729: # Add the graphic
1.179 matthew 730: my $title = &mt('Report a Bug');
1.172 www 731: $template .= <<"ENDTEMPLATE";
1.179 matthew 732: <a href="$link" title="$title"><image src="/adm/lonMisc/smallBug.gif" border="0" alt="(Bug: $topic)" /></a>
1.172 www 733: ENDTEMPLATE
734: if ($text ne '') { $template.='</td></tr></table>' };
735: return $template;
736:
737: }
738:
739: sub help_open_faq {
740: my ($topic, $text, $stayOnPage, $width, $height) = @_;
741: unless ($ENV{'user.adv'}) { return ''; }
742: unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }
743: $text = "" if (not defined $text);
744: $stayOnPage = 0 if (not defined $stayOnPage);
745: if ($ENV{'browser.interface'} eq 'textual' ||
746: $ENV{'environment.remote'} eq 'off' ) {
747: $stayOnPage=1;
748: }
749: $width = 350 if (not defined $width);
750: $height = 400 if (not defined $height);
751:
752: $topic=~s/\W+/\+/g;
753: my $link='';
754: my $template='';
755: my $url=$Apache::lonnet::perlvar{'FAQHost'}.'/fom/cache/'.$topic.'.html';
756: if (!$stayOnPage)
757: {
758: $link = "javascript:void(open('$url', 'FAQ-O-Matic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
759: }
760: else
761: {
762: $link = $url;
763: }
764:
765: # Add the text
766: if ($text ne "")
767: {
768: $template .=
1.173 www 769: "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
770: "<td bgcolor='#448844'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.172 www 771: }
772:
773: # Add the graphic
1.179 matthew 774: my $title = &mt('View the FAQ');
1.172 www 775: $template .= <<"ENDTEMPLATE";
1.179 matthew 776: <a href="$link" title="$title"><image src="/adm/lonMisc/smallFAQ.gif" border="0" alt="(FAQ: $topic)" /></a>
1.172 www 777: ENDTEMPLATE
778: if ($text ne '') { $template.='</td></tr></table>' };
779: return $template;
780:
1.44 bowersj2 781: }
1.37 matthew 782:
1.180 matthew 783: ###############################################################
784: ###############################################################
785:
1.45 matthew 786: =pod
787:
1.112 bowersj2 788: =item * csv_translate($text)
1.37 matthew 789:
1.185 www 790: Translate $text to allow it to be output as a 'comma separated values'
1.37 matthew 791: format.
792:
793: =cut
794:
1.180 matthew 795: ###############################################################
796: ###############################################################
1.37 matthew 797: sub csv_translate {
798: my $text = shift;
799: $text =~ s/\"/\"\"/g;
800: $text =~ s/\n//g;
801: return $text;
802: }
1.180 matthew 803:
804:
805: ###############################################################
806: ###############################################################
807:
808: =pod
809:
810: =item * define_excel_formats
811:
812: Define some commonly used Excel cell formats.
813:
814: Currently supported formats:
815:
816: =over 4
817:
818: =item header
819:
820: =item bold
821:
822: =item h1
823:
824: =item h2
825:
826: =item h3
827:
828: =item date
829:
830: =back
831:
832: Inputs: $workbook
833:
834: Returns: $format, a hash reference.
835:
836: =cut
837:
838: ###############################################################
839: ###############################################################
840: sub define_excel_formats {
841: my ($workbook) = @_;
842: my $format;
843: $format->{'header'} = $workbook->add_format(bold => 1,
844: bottom => 1,
845: align => 'center');
846: $format->{'bold'} = $workbook->add_format(bold=>1);
847: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
848: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
849: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
850: $format->{'date'} = $workbook->add_format(num_format=>
851: 'mmm d yyyy hh:mm AM/PM');
852: return $format;
853: }
854:
855: ###############################################################
856: ###############################################################
1.113 bowersj2 857:
858: =pod
859:
860: =item * change_content_javascript():
861:
862: This and the next function allow you to create small sections of an
863: otherwise static HTML page that you can update on the fly with
864: Javascript, even in Netscape 4.
865:
866: The Javascript fragment returned by this function (no E<lt>scriptE<gt> tag)
867: must be written to the HTML page once. It will prove the Javascript
868: function "change(name, content)". Calling the change function with the
869: name of the section
870: you want to update, matching the name passed to C<changable_area>, and
871: the new content you want to put in there, will put the content into
872: that area.
873:
874: B<Note>: Netscape 4 only reserves enough space for the changable area
875: to contain room for the original contents. You need to "make space"
876: for whatever changes you wish to make, and be B<sure> to check your
877: code in Netscape 4. This feature in Netscape 4 is B<not> powerful;
878: it's adequate for updating a one-line status display, but little more.
879: This script will set the space to 100% width, so you only need to
880: worry about height in Netscape 4.
881:
882: Modern browsers are much less limiting, and if you can commit to the
883: user not using Netscape 4, this feature may be used freely with
884: pretty much any HTML.
885:
886: =cut
887:
888: sub change_content_javascript {
889: # If we're on Netscape 4, we need to use Layer-based code
890: if ($ENV{'browser.type'} eq 'netscape' &&
891: $ENV{'browser.version'} =~ /^4\./) {
892: return (<<NETSCAPE4);
893: function change(name, content) {
894: doc = document.layers[name+"___escape"].layers[0].document;
895: doc.open();
896: doc.write(content);
897: doc.close();
898: }
899: NETSCAPE4
900: } else {
901: # Otherwise, we need to use semi-standards-compliant code
902: # (technically, "innerHTML" isn't standard but the equivalent
903: # is really scary, and every useful browser supports it
904: return (<<DOMBASED);
905: function change(name, content) {
906: element = document.getElementById(name);
907: element.innerHTML = content;
908: }
909: DOMBASED
910: }
911: }
912:
913: =pod
914:
915: =item * changable_area($name, $origContent):
916:
917: This provides a "changable area" that can be modified on the fly via
918: the Javascript code provided in C<change_content_javascript>. $name is
919: the name you will use to reference the area later; do not repeat the
920: same name on a given HTML page more then once. $origContent is what
921: the area will originally contain, which can be left blank.
922:
923: =cut
924:
925: sub changable_area {
926: my ($name, $origContent) = @_;
927:
928: if ($ENV{'browser.type'} eq 'netscape' &&
929: $ENV{'browser.version'} =~ /^4\./) {
930: # If this is netscape 4, we need to use the Layer tag
931: return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>";
932: } else {
933: return "<span id='$name'>$origContent</span>";
934: }
935: }
936:
937: =pod
938:
939: =back
940:
941: =cut
1.37 matthew 942:
943: ###############################################################
1.33 matthew 944: ## Home server <option> list generating code ##
945: ###############################################################
1.35 matthew 946:
1.45 matthew 947: =pod
948:
1.112 bowersj2 949: =head1 Home Server option list generating code
950:
951: =over 4
952:
953: =item * get_domains()
1.35 matthew 954:
955: Returns an array containing each of the domains listed in the hosts.tab
956: file.
957:
958: =cut
959:
960: #-------------------------------------------
1.34 matthew 961: sub get_domains {
962: # The code below was stolen from "The Perl Cookbook", p 102, 1st ed.
963: my @domains;
964: my %seen;
965: foreach (sort values(%Apache::lonnet::hostdom)) {
1.169 www 966: push (@domains,$_) unless $seen{$_}++;
1.34 matthew 967: }
968: return @domains;
969: }
1.88 www 970:
1.169 www 971: # ------------------------------------------
972:
973: sub domain_select {
974: my ($name,$value,$multiple)=@_;
975: my %domains=map {
976: $_ => $_.' '.$Apache::lonnet::domaindescription{$_}
977: } &get_domains;
978: if ($multiple) {
979: $domains{''}=&mt('Any domain');
1.191 matthew 980: return &multiple_select_form($name,$value,4,%domains);
1.169 www 981: } else {
982: return &select_form($name,$value,%domains);
983: }
984: }
985:
986: sub multiple_select_form {
1.191 matthew 987: my ($name,$value,$size,%hash)=@_;
1.169 www 988: my %selected = map { $_ => 1 } ref($value)?@{$value}:($value);
989: my $output='';
1.191 matthew 990: if (! defined($size)) {
991: $size = 4;
992: if (scalar(keys(%hash))<4) {
993: $size = scalar(keys(%hash));
994: }
995: }
1.169 www 996: $output.="\n<select name='$name' size='$size' multiple='1'>";
1.191 matthew 997: foreach (sort(keys(%hash))) {
998: $output.='<option value="'.$_.'" ';
999: $output.='selected ' if ($selected{$_});
1000: $output.='>'.$hash{$_}."</option>\n";
1.169 www 1001: }
1002: $output.="</select>\n";
1003: return $output;
1004: }
1005:
1.88 www 1006: #-------------------------------------------
1007:
1008: =pod
1009:
1.112 bowersj2 1010: =item * select_form($defdom,$name,%hash)
1.88 www 1011:
1012: Returns a string containing a <select name='$name' size='1'> form to
1013: allow a user to select options from a hash option_name => displayed text.
1014: See lonrights.pm for an example invocation and use.
1015:
1016: =cut
1017:
1018: #-------------------------------------------
1019: sub select_form {
1020: my ($def,$name,%hash) = @_;
1021: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1.128 albertel 1022: my @keys;
1023: if (exists($hash{'select_form_order'})) {
1024: @keys=@{$hash{'select_form_order'}};
1025: } else {
1026: @keys=sort(keys(%hash));
1027: }
1028: foreach (@keys) {
1.88 www 1029: $selectform.="<option value=\"$_\" ".
1030: ($_ eq $def ? 'selected' : '').
1.119 www 1031: ">".&mt($hash{$_})."</option>\n";
1.88 www 1032: }
1033: $selectform.="</select>";
1034: return $selectform;
1035: }
1036:
1.167 www 1037: sub gradeleveldescription {
1038: my $gradelevel=shift;
1039: my %gradelevels=(0 => 'Not specified',
1040: 1 => 'Grade 1',
1041: 2 => 'Grade 2',
1042: 3 => 'Grade 3',
1043: 4 => 'Grade 4',
1044: 5 => 'Grade 5',
1045: 6 => 'Grade 6',
1046: 7 => 'Grade 7',
1047: 8 => 'Grade 8',
1048: 9 => 'Grade 9',
1049: 10 => 'Grade 10',
1050: 11 => 'Grade 11',
1051: 12 => 'Grade 12',
1052: 13 => 'Grade 13',
1053: 14 => '100 Level',
1054: 15 => '200 Level',
1055: 16 => '300 Level',
1056: 17 => '400 Level',
1057: 18 => 'Graduate Level');
1058: return &mt($gradelevels{$gradelevel});
1059: }
1060:
1.163 www 1061: sub select_level_form {
1062: my ($deflevel,$name)=@_;
1063: unless ($deflevel) { $deflevel=0; }
1.167 www 1064: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1065: for (my $i=0; $i<=18; $i++) {
1066: $selectform.="<option value=\"$i\" ".
1067: ($i==$deflevel ? 'selected' : '').
1068: ">".&gradeleveldescription($i)."</option>\n";
1069: }
1070: $selectform.="</select>";
1071: return $selectform;
1.163 www 1072: }
1.167 www 1073:
1.35 matthew 1074: #-------------------------------------------
1075:
1.45 matthew 1076: =pod
1077:
1.112 bowersj2 1078: =item * select_dom_form($defdom,$name,$includeempty)
1.35 matthew 1079:
1080: Returns a string containing a <select name='$name' size='1'> form to
1081: allow a user to select the domain to preform an operation in.
1082: See loncreateuser.pm for an example invocation and use.
1083:
1.90 www 1084: If the $includeempty flag is set, it also includes an empty choice ("no domain
1085: selected");
1086:
1.35 matthew 1087: =cut
1088:
1089: #-------------------------------------------
1.34 matthew 1090: sub select_dom_form {
1.90 www 1091: my ($defdom,$name,$includeempty) = @_;
1.34 matthew 1092: my @domains = get_domains();
1.90 www 1093: if ($includeempty) { @domains=('',@domains); }
1.34 matthew 1094: my $selectdomain = "<select name=\"$name\" size=\"1\">\n";
1095: foreach (@domains) {
1096: $selectdomain.="<option value=\"$_\" ".
1097: ($_ eq $defdom ? 'selected' : '').
1098: ">$_</option>\n";
1099: }
1100: $selectdomain.="</select>";
1101: return $selectdomain;
1102: }
1103:
1.35 matthew 1104: #-------------------------------------------
1105:
1.45 matthew 1106: =pod
1107:
1.112 bowersj2 1108: =item * get_library_servers($domain)
1.35 matthew 1109:
1110: Returns a hash which contains keys like '103l3' and values like
1111: 'kirk.lite.msu.edu'. All of the keys will be for machines in the
1112: given $domain.
1113:
1114: =cut
1115:
1116: #-------------------------------------------
1.52 matthew 1117: sub get_library_servers {
1.33 matthew 1118: my $domain = shift;
1.52 matthew 1119: my %library_servers;
1.33 matthew 1120: foreach (keys(%Apache::lonnet::libserv)) {
1121: if ($Apache::lonnet::hostdom{$_} eq $domain) {
1.52 matthew 1122: $library_servers{$_} = $Apache::lonnet::hostname{$_};
1.33 matthew 1123: }
1124: }
1.52 matthew 1125: return %library_servers;
1.33 matthew 1126: }
1127:
1.35 matthew 1128: #-------------------------------------------
1129:
1.45 matthew 1130: =pod
1131:
1.112 bowersj2 1132: =item * home_server_option_list($domain)
1.35 matthew 1133:
1134: returns a string which contains an <option> list to be used in a
1135: <select> form input. See loncreateuser.pm for an example.
1136:
1137: =cut
1138:
1139: #-------------------------------------------
1.33 matthew 1140: sub home_server_option_list {
1141: my $domain = shift;
1.52 matthew 1142: my %servers = &get_library_servers($domain);
1.33 matthew 1143: my $result = '';
1144: foreach (sort keys(%servers)) {
1145: $result.=
1146: '<option value="'.$_.'">'.$_.' '.$servers{$_}."</option>\n";
1147: }
1148: return $result;
1149: }
1.112 bowersj2 1150:
1151: =pod
1152:
1153: =back
1154:
1155: =cut
1.87 matthew 1156:
1157: ###############################################################
1.112 bowersj2 1158: ## Decoding User Agent ##
1.87 matthew 1159: ###############################################################
1160:
1161: =pod
1162:
1.112 bowersj2 1163: =head1 Decoding the User Agent
1164:
1165: =over 4
1166:
1167: =item * &decode_user_agent()
1.87 matthew 1168:
1169: Inputs: $r
1170:
1171: Outputs:
1172:
1173: =over 4
1174:
1.112 bowersj2 1175: =item * $httpbrowser
1.87 matthew 1176:
1.112 bowersj2 1177: =item * $clientbrowser
1.87 matthew 1178:
1.112 bowersj2 1179: =item * $clientversion
1.87 matthew 1180:
1.112 bowersj2 1181: =item * $clientmathml
1.87 matthew 1182:
1.112 bowersj2 1183: =item * $clientunicode
1.87 matthew 1184:
1.112 bowersj2 1185: =item * $clientos
1.87 matthew 1186:
1187: =back
1188:
1.157 matthew 1189: =back
1190:
1.87 matthew 1191: =cut
1192:
1193: ###############################################################
1194: ###############################################################
1195: sub decode_user_agent {
1196: my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});
1197: my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});
1198: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
1199: my $clientbrowser='unknown';
1200: my $clientversion='0';
1201: my $clientmathml='';
1202: my $clientunicode='0';
1203: for (my $i=0;$i<=$#browsertype;$i++) {
1204: my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
1205: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
1206: $clientbrowser=$bname;
1207: $httpbrowser=~/$vreg/i;
1208: $clientversion=$1;
1209: $clientmathml=($clientversion>=$minv);
1210: $clientunicode=($clientversion>=$univ);
1211: }
1212: }
1213: my $clientos='unknown';
1214: if (($httpbrowser=~/linux/i) ||
1215: ($httpbrowser=~/unix/i) ||
1216: ($httpbrowser=~/ux/i) ||
1217: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
1218: if (($httpbrowser=~/vax/i) ||
1219: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
1220: if ($httpbrowser=~/next/i) { $clientos='next'; }
1221: if (($httpbrowser=~/mac/i) ||
1222: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
1223: if ($httpbrowser=~/win/i) { $clientos='win'; }
1224: if ($httpbrowser=~/embed/i) { $clientos='pda'; }
1225: return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
1226: $clientunicode,$clientos,);
1227: }
1228:
1.32 matthew 1229: ###############################################################
1230: ## Authentication changing form generation subroutines ##
1231: ###############################################################
1232: ##
1233: ## All of the authform_xxxxxxx subroutines take their inputs in a
1234: ## hash, and have reasonable default values.
1235: ##
1236: ## formname = the name given in the <form> tag.
1.35 matthew 1237: #-------------------------------------------
1238:
1.45 matthew 1239: =pod
1240:
1.112 bowersj2 1241: =head1 Authentication Routines
1242:
1243: =over 4
1244:
1245: =item * authform_xxxxxx
1.35 matthew 1246:
1247: The authform_xxxxxx subroutines provide javascript and html forms which
1248: handle some of the conveniences required for authentication forms.
1249: This is not an optimal method, but it works.
1250:
1251: See loncreateuser.pm for invocation and use examples.
1252:
1253: =over 4
1254:
1.112 bowersj2 1255: =item * authform_header
1.35 matthew 1256:
1.112 bowersj2 1257: =item * authform_authorwarning
1.35 matthew 1258:
1.112 bowersj2 1259: =item * authform_nochange
1.35 matthew 1260:
1.112 bowersj2 1261: =item * authform_kerberos
1.35 matthew 1262:
1.112 bowersj2 1263: =item * authform_internal
1.35 matthew 1264:
1.112 bowersj2 1265: =item * authform_filesystem
1.35 matthew 1266:
1267: =back
1268:
1.157 matthew 1269: =back
1270:
1.35 matthew 1271: =cut
1272:
1273: #-------------------------------------------
1.32 matthew 1274: sub authform_header{
1275: my %in = (
1276: formname => 'cu',
1.80 albertel 1277: kerb_def_dom => '',
1.32 matthew 1278: @_,
1279: );
1280: $in{'formname'} = 'document.' . $in{'formname'};
1281: my $result='';
1.80 albertel 1282:
1283: #---------------------------------------------- Code for upper case translation
1284: my $Javascript_toUpperCase;
1285: unless ($in{kerb_def_dom}) {
1286: $Javascript_toUpperCase =<<"END";
1287: switch (choice) {
1288: case 'krb': currentform.elements[choicearg].value =
1289: currentform.elements[choicearg].value.toUpperCase();
1290: break;
1291: default:
1292: }
1293: END
1294: } else {
1295: $Javascript_toUpperCase = "";
1296: }
1297:
1.165 raeburn 1298: my $radioval = "'nochange'";
1.174 matthew 1299: if (exists($in{'curr_authtype'}) &&
1300: defined($in{'curr_authtype'}) &&
1301: $in{'curr_authtype'} ne '') {
1302: $radioval = "'$in{'curr_authtype'}arg'";
1303: }
1.165 raeburn 1304: my $argfield = 'null';
1305: if ( grep/^mode$/,(keys %in) ) {
1306: if ($in{'mode'} eq 'modifycourse') {
1307: if ( grep/^curr_authtype$/,(keys %in) ) {
1308: $radioval = "'$in{'curr_authtype'}'";
1309: }
1310: if ( grep/^curr_autharg$/,(keys %in) ) {
1311: unless ($in{'curr_autharg'} eq '') {
1312: $argfield = "'$in{'curr_autharg'}'";
1313: }
1314: }
1315: }
1316: }
1317:
1.32 matthew 1318: $result.=<<"END";
1319: var current = new Object();
1.165 raeburn 1320: current.radiovalue = $radioval;
1321: current.argfield = $argfield;
1.32 matthew 1322:
1323: function changed_radio(choice,currentform) {
1324: var choicearg = choice + 'arg';
1325: // If a radio button in changed, we need to change the argfield
1326: if (current.radiovalue != choice) {
1327: current.radiovalue = choice;
1328: if (current.argfield != null) {
1329: currentform.elements[current.argfield].value = '';
1330: }
1331: if (choice == 'nochange') {
1332: current.argfield = null;
1333: } else {
1334: current.argfield = choicearg;
1335: switch(choice) {
1336: case 'krb':
1337: currentform.elements[current.argfield].value =
1338: "$in{'kerb_def_dom'}";
1339: break;
1340: default:
1341: break;
1342: }
1343: }
1344: }
1345: return;
1346: }
1.22 www 1347:
1.32 matthew 1348: function changed_text(choice,currentform) {
1349: var choicearg = choice + 'arg';
1350: if (currentform.elements[choicearg].value !='') {
1.80 albertel 1351: $Javascript_toUpperCase
1.32 matthew 1352: // clear old field
1353: if ((current.argfield != choicearg) && (current.argfield != null)) {
1354: currentform.elements[current.argfield].value = '';
1355: }
1356: current.argfield = choicearg;
1357: }
1358: set_auth_radio_buttons(choice,currentform);
1359: return;
1.20 www 1360: }
1.32 matthew 1361:
1362: function set_auth_radio_buttons(newvalue,currentform) {
1363: var i=0;
1364: while (i < currentform.login.length) {
1365: if (currentform.login[i].value == newvalue) { break; }
1366: i++;
1367: }
1368: if (i == currentform.login.length) {
1369: return;
1370: }
1371: current.radiovalue = newvalue;
1372: currentform.login[i].checked = true;
1373: return;
1374: }
1375: END
1376: return $result;
1377: }
1378:
1379: sub authform_authorwarning{
1380: my $result='';
1.144 matthew 1381: $result='<i>'.
1382: &mt('As a general rule, only authors or co-authors should be '.
1383: 'filesystem authenticated '.
1384: '(which allows access to the server filesystem).')."</i>\n";
1.32 matthew 1385: return $result;
1386: }
1387:
1388: sub authform_nochange{
1389: my %in = (
1390: formname => 'document.cu',
1391: kerb_def_dom => 'MSU.EDU',
1392: @_,
1393: );
1.144 matthew 1394: my $result = &mt('[_1] Do not change login data',
1395: '<input type="radio" name="login" value="nochange" '.
1396: 'checked="checked" onclick="'.
1397: "javascript:changed_radio('nochange',$in{'formname'});".'" />');
1.32 matthew 1398: return $result;
1399: }
1400:
1401: sub authform_kerberos{
1402: my %in = (
1403: formname => 'document.cu',
1404: kerb_def_dom => 'MSU.EDU',
1.80 albertel 1405: kerb_def_auth => 'krb4',
1.32 matthew 1406: @_,
1407: );
1.165 raeburn 1408: my ($check4,$check5,$krbarg);
1.80 albertel 1409: if ($in{'kerb_def_auth'} eq 'krb5') {
1410: $check5 = " checked=\"on\"";
1411: } else {
1412: $check4 = " checked=\"on\"";
1413: }
1.165 raeburn 1414: $krbarg = $in{'kerb_def_dom'};
1415:
1416: my $krbcheck = "";
1417: if ( grep/^curr_authtype$/,(keys %in) ) {
1418: if ($in{'curr_authtype'} =~ m/^krb/) {
1419: $krbcheck = " checked=\"on\"";
1420: if ( grep/^curr_autharg$/,(keys %in) ) {
1421: $krbarg = $in{'curr_autharg'};
1422: }
1423: }
1424: }
1425:
1.144 matthew 1426: my $jscall = "javascript:changed_radio('krb',$in{'formname'});";
1427: my $result .= &mt
1428: ('[_1] Kerberos authenticated with domain [_2] '.
1429: '[_3] Version 4 [_4] Version 5',
1430: '<input type="radio" name="login" value="krb" '.
1.165 raeburn 1431: 'onclick="'.$jscall.'" onchange="'.$jscall.'"'.$krbcheck.' />',
1.144 matthew 1432: '<input type="text" size="10" name="krbarg" '.
1.165 raeburn 1433: 'value="'.$krbarg.'" '.
1.144 matthew 1434: 'onchange="'.$jscall.'" />',
1435: '<input type="radio" name="krbver" value="4" '.$check4.' />',
1436: '<input type="radio" name="krbver" value="5" '.$check5.' />');
1.32 matthew 1437: return $result;
1438: }
1439:
1440: sub authform_internal{
1441: my %args = (
1442: formname => 'document.cu',
1443: kerb_def_dom => 'MSU.EDU',
1444: @_,
1445: );
1.165 raeburn 1446:
1447: my $intcheck = "";
1448: my $intarg = 'value=""';
1449: if ( grep/^curr_authtype$/,(keys %args) ) {
1450: if ($args{'curr_authtype'} eq 'int') {
1451: $intcheck = " checked=\"on\"";
1452: if ( grep/^curr_autharg$/,(keys %args) ) {
1453: $intarg = "value=\"$args{'curr_autharg'}\"";
1454: }
1455: }
1456: }
1457:
1.144 matthew 1458: my $jscall = "javascript:changed_radio('int',$args{'formname'});";
1459: my $result.=&mt
1460: ('[_1] Internally authenticated (with initial password [_2])',
1.165 raeburn 1461: '<input type="radio" name="login" value="int" '.$intcheck.
1462: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1463: '<input type="text" size="10" name="intarg" '.$intarg.
1464: ' onchange="'.$jscall.'" />');
1.32 matthew 1465: return $result;
1466: }
1467:
1468: sub authform_local{
1469: my %in = (
1470: formname => 'document.cu',
1471: kerb_def_dom => 'MSU.EDU',
1472: @_,
1473: );
1.165 raeburn 1474:
1475: my $loccheck = "";
1476: my $locarg = 'value=""';
1477: if ( grep/^curr_authtype$/,(keys %in) ) {
1478: if ($in{'curr_authtype'} eq 'loc') {
1479: $loccheck = " checked=\"on\"";
1480: if ( grep/^curr_autharg$/,(keys %in) ) {
1481: $locarg = "value=\"$in{'curr_autharg'}\"";
1482: }
1483: }
1484: }
1485:
1.144 matthew 1486: my $jscall = "javascript:changed_radio('loc',$in{'formname'});";
1.160 matthew 1487: my $result.=&mt('[_1] Local Authentication with argument [_2]',
1.165 raeburn 1488: '<input type="radio" name="login" value="loc" '.$loccheck.
1489: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1490: '<input type="text" size="10" name="locarg" '.$locarg.
1491: ' onchange="'.$jscall.'" />');
1.32 matthew 1492: return $result;
1493: }
1494:
1495: sub authform_filesystem{
1496: my %in = (
1497: formname => 'document.cu',
1498: kerb_def_dom => 'MSU.EDU',
1499: @_,
1500: );
1.144 matthew 1501: my $jscall = "javascript:changed_radio('fsys',$in{'formname'});";
1502: my $result.= &mt
1503: ('[_1] Filesystem Authenticated (with initial password [_2])',
1504: '<input type="radio" name="login" value="fsys" '.
1505: 'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1506: '<input type="text" size="10" name="fsysarg" value="" '.
1507: 'onchange="'.$jscall.'" />');
1.32 matthew 1508: return $result;
1509: }
1510:
1.80 albertel 1511: ###############################################################
1512: ## Get Authentication Defaults for Domain ##
1513: ###############################################################
1514:
1515: =pod
1516:
1.112 bowersj2 1517: =head1 Domains and Authentication
1518:
1519: Returns default authentication type and an associated argument as
1520: listed in file 'domain.tab'.
1521:
1522: =over 4
1523:
1524: =item * get_auth_defaults
1.80 albertel 1525:
1526: get_auth_defaults($target_domain) returns the default authentication
1527: type and an associated argument (initial password or a kerberos domain).
1528: These values are stored in lonTabs/domain.tab
1529:
1530: ($def_auth, $def_arg) = &get_auth_defaults($target_domain);
1531:
1532: If target_domain is not found in domain.tab, returns nothing ('').
1533:
1534: =cut
1535:
1536: #-------------------------------------------
1537: sub get_auth_defaults {
1538: my $domain=shift;
1539: return ($Apache::lonnet::domain_auth_def{$domain},$Apache::lonnet::domain_auth_arg_def{$domain});
1540: }
1541: ###############################################################
1542: ## End Get Authentication Defaults for Domain ##
1543: ###############################################################
1544:
1545: ###############################################################
1546: ## Get Kerberos Defaults for Domain ##
1547: ###############################################################
1548: ##
1549: ## Returns default kerberos version and an associated argument
1550: ## as listed in file domain.tab. If not listed, provides
1551: ## appropriate default domain and kerberos version.
1552: ##
1553: #-------------------------------------------
1554:
1555: =pod
1556:
1.112 bowersj2 1557: =item * get_kerberos_defaults
1.80 albertel 1558:
1559: get_kerberos_defaults($target_domain) returns the default kerberos
1560: version and domain. If not found in domain.tabs, it defaults to
1561: version 4 and the domain of the server.
1562:
1563: ($def_version, $def_krb_domain) = &get_kerberos_defaults($target_domain);
1564:
1565: =cut
1566:
1567: #-------------------------------------------
1568: sub get_kerberos_defaults {
1569: my $domain=shift;
1570: my ($krbdef,$krbdefdom) =
1571: &Apache::loncommon::get_auth_defaults($domain);
1572: unless ($krbdef =~/^krb/ && $krbdefdom) {
1573: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
1574: my $krbdefdom=$1;
1575: $krbdefdom=~tr/a-z/A-Z/;
1576: $krbdef = "krb4";
1577: }
1578: return ($krbdef,$krbdefdom);
1579: }
1.112 bowersj2 1580:
1581: =pod
1582:
1583: =back
1584:
1585: =cut
1.32 matthew 1586:
1.46 matthew 1587: ###############################################################
1588: ## Thesaurus Functions ##
1589: ###############################################################
1.20 www 1590:
1.46 matthew 1591: =pod
1.20 www 1592:
1.112 bowersj2 1593: =head1 Thesaurus Functions
1594:
1595: =over 4
1596:
1597: =item * initialize_keywords
1.46 matthew 1598:
1599: Initializes the package variable %Keywords if it is empty. Uses the
1600: package variable $thesaurus_db_file.
1601:
1602: =cut
1603:
1604: ###################################################
1605:
1606: sub initialize_keywords {
1607: return 1 if (scalar keys(%Keywords));
1608: # If we are here, %Keywords is empty, so fill it up
1609: # Make sure the file we need exists...
1610: if (! -e $thesaurus_db_file) {
1611: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file".
1612: " failed because it does not exist");
1613: return 0;
1614: }
1615: # Set up the hash as a database
1616: my %thesaurus_db;
1617: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1618: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1619: &Apache::lonnet::logthis("Could not tie \%thesaurus_db to ".
1620: $thesaurus_db_file);
1621: return 0;
1622: }
1623: # Get the average number of appearances of a word.
1624: my $avecount = $thesaurus_db{'average.count'};
1625: # Put keywords (those that appear > average) into %Keywords
1626: while (my ($word,$data)=each (%thesaurus_db)) {
1627: my ($count,undef) = split /:/,$data;
1628: $Keywords{$word}++ if ($count > $avecount);
1629: }
1630: untie %thesaurus_db;
1631: # Remove special values from %Keywords.
1632: foreach ('total.count','average.count') {
1633: delete($Keywords{$_}) if (exists($Keywords{$_}));
1634: }
1635: return 1;
1636: }
1637:
1638: ###################################################
1639:
1640: =pod
1641:
1.112 bowersj2 1642: =item * keyword($word)
1.46 matthew 1643:
1644: Returns true if $word is a keyword. A keyword is a word that appears more
1645: than the average number of times in the thesaurus database. Calls
1646: &initialize_keywords
1647:
1648: =cut
1649:
1650: ###################################################
1.20 www 1651:
1652: sub keyword {
1.46 matthew 1653: return if (!&initialize_keywords());
1654: my $word=lc(shift());
1655: $word=~s/\W//g;
1656: return exists($Keywords{$word});
1.20 www 1657: }
1.46 matthew 1658:
1659: ###############################################################
1660:
1661: =pod
1.20 www 1662:
1.112 bowersj2 1663: =item * get_related_words
1.46 matthew 1664:
1.160 matthew 1665: Look up a word in the thesaurus. Takes a scalar argument and returns
1.46 matthew 1666: an array of words. If the keyword is not in the thesaurus, an empty array
1667: will be returned. The order of the words returned is determined by the
1668: database which holds them.
1669:
1670: Uses global $thesaurus_db_file.
1671:
1672: =cut
1673:
1674: ###############################################################
1675: sub get_related_words {
1676: my $keyword = shift;
1677: my %thesaurus_db;
1678: if (! -e $thesaurus_db_file) {
1679: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file ".
1680: "failed because the file does not exist");
1681: return ();
1682: }
1683: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1684: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1685: return ();
1686: }
1687: my @Words=();
1688: if (exists($thesaurus_db{$keyword})) {
1689: $_ = $thesaurus_db{$keyword};
1690: (undef,@Words) = split/:/; # The first element is the number of times
1691: # the word appears. We do not need it now.
1692: for (my $i=0;$i<=$#Words;$i++) {
1693: ($Words[$i],undef)= split/\,/,$Words[$i];
1.20 www 1694: }
1695: }
1.46 matthew 1696: untie %thesaurus_db;
1697: return @Words;
1.14 harris41 1698: }
1.46 matthew 1699:
1.112 bowersj2 1700: =pod
1701:
1702: =back
1703:
1704: =cut
1.61 www 1705:
1706: # -------------------------------------------------------------- Plaintext name
1.81 albertel 1707: =pod
1708:
1.112 bowersj2 1709: =head1 User Name Functions
1710:
1711: =over 4
1712:
1713: =item * plainname($uname,$udom)
1.81 albertel 1714:
1.112 bowersj2 1715: Takes a users logon name and returns it as a string in
1716: "first middle last generation" form
1.81 albertel 1717:
1718: =cut
1.61 www 1719:
1.81 albertel 1720: ###############################################################
1.61 www 1721: sub plainname {
1722: my ($uname,$udom)=@_;
1723: my %names=&Apache::lonnet::get('environment',
1724: ['firstname','middlename','lastname','generation'],
1725: $udom,$uname);
1.62 www 1726: my $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
1.61 www 1727: $names{'lastname'}.' '.$names{'generation'};
1.62 www 1728: $name=~s/\s+$//;
1729: $name=~s/\s+/ /g;
1.190 albertel 1730: if ($name !~ /\S/) { $name=$uname.'@'.$udom; }
1.62 www 1731: return $name;
1.61 www 1732: }
1.66 www 1733:
1734: # -------------------------------------------------------------------- Nickname
1.81 albertel 1735: =pod
1736:
1.112 bowersj2 1737: =item * nickname($uname,$udom)
1.81 albertel 1738:
1739: Gets a users name and returns it as a string as
1740:
1741: ""nickname""
1.66 www 1742:
1.81 albertel 1743: if the user has a nickname or
1744:
1745: "first middle last generation"
1746:
1747: if the user does not
1748:
1749: =cut
1.66 www 1750:
1751: sub nickname {
1752: my ($uname,$udom)=@_;
1753: my %names=&Apache::lonnet::get('environment',
1754: ['nickname','firstname','middlename','lastname','generation'],$udom,$uname);
1.68 albertel 1755: my $name=$names{'nickname'};
1.66 www 1756: if ($name) {
1757: $name='"'.$name.'"';
1758: } else {
1759: $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
1760: $names{'lastname'}.' '.$names{'generation'};
1761: $name=~s/\s+$//;
1762: $name=~s/\s+/ /g;
1763: }
1764: return $name;
1765: }
1766:
1.61 www 1767:
1768: # ------------------------------------------------------------------ Screenname
1.81 albertel 1769:
1770: =pod
1771:
1.112 bowersj2 1772: =item * screenname($uname,$udom)
1.81 albertel 1773:
1774: Gets a users screenname and returns it as a string
1775:
1776: =cut
1.61 www 1777:
1778: sub screenname {
1779: my ($uname,$udom)=@_;
1780: my %names=
1781: &Apache::lonnet::get('environment',['screenname'],$udom,$uname);
1.68 albertel 1782: return $names{'screenname'};
1.62 www 1783: }
1784:
1785: # ------------------------------------------------------------- Message Wrapper
1786:
1787: sub messagewrapper {
1788: my ($link,$un,$do)=@_;
1789: return
1790: "<a href='/adm/email?compose=individual&recname=$un&recdom=$do'>$link</a>";
1.74 www 1791: }
1792: # --------------------------------------------------------------- Notes Wrapper
1793:
1794: sub noteswrapper {
1795: my ($link,$un,$do)=@_;
1796: return
1797: "<a href='/adm/email?recordftf=retrieve&recname=$un&recdom=$do'>$link</a>";
1.62 www 1798: }
1799: # ------------------------------------------------------------- Aboutme Wrapper
1800:
1801: sub aboutmewrapper {
1.166 www 1802: my ($link,$username,$domain,$target)=@_;
1803: return "<a href='/adm/$domain/$username/aboutme'".
1804: ($target?" target='$target'":'').">$link</a>";
1.62 www 1805: }
1806:
1807: # ------------------------------------------------------------ Syllabus Wrapper
1808:
1809:
1810: sub syllabuswrapper {
1.109 matthew 1811: my ($linktext,$coursedir,$domain,$fontcolor)=@_;
1812: if ($fontcolor) {
1813: $linktext='<font color="'.$fontcolor.'">'.$linktext.'</font>';
1814: }
1815: return "<a href='/public/$domain/$coursedir/syllabus'>$linktext</a>";
1.61 www 1816: }
1.14 harris41 1817:
1.112 bowersj2 1818: =pod
1819:
1820: =back
1821:
1822: =head1 Access .tab File Data
1823:
1824: =over 4
1825:
1826: =item * languageids()
1827:
1828: returns list of all language ids
1829:
1830: =cut
1831:
1.14 harris41 1832: sub languageids {
1.16 harris41 1833: return sort(keys(%language));
1.14 harris41 1834: }
1835:
1.112 bowersj2 1836: =pod
1837:
1838: =item * languagedescription()
1839:
1840: returns description of a specified language id
1841:
1842: =cut
1843:
1.14 harris41 1844: sub languagedescription {
1.125 www 1845: my $code=shift;
1846: return ($supported_language{$code}?'* ':'').
1847: $language{$code}.
1.126 www 1848: ($supported_language{$code}?' ('.&mt('interface available').')':'');
1.145 www 1849: }
1850:
1851: sub plainlanguagedescription {
1852: my $code=shift;
1853: return $language{$code};
1854: }
1855:
1856: sub supportedlanguagecode {
1857: my $code=shift;
1858: return $supported_language{$code};
1.97 www 1859: }
1860:
1.112 bowersj2 1861: =pod
1862:
1863: =item * copyrightids()
1864:
1865: returns list of all copyrights
1866:
1867: =cut
1868:
1869: sub copyrightids {
1870: return sort(keys(%cprtag));
1871: }
1872:
1873: =pod
1874:
1875: =item * copyrightdescription()
1876:
1877: returns description of a specified copyright id
1878:
1879: =cut
1880:
1881: sub copyrightdescription {
1.166 www 1882: return &mt($cprtag{shift(@_)});
1.112 bowersj2 1883: }
1.192 taceyjo1 1884: =item * source_copyrightids()
1885:
1886: returns list of all source copyrights
1887:
1888: =cut
1889:
1890: sub source_copyrightids {
1891: return sort(keys(%scprtag));
1892: }
1893:
1894: =pod
1895:
1896: =item * source_copyrightdescription()
1897:
1898: returns description of a specified source copyright id
1899:
1900: =cut
1901:
1902: sub source_copyrightdescription {
1903: return &mt($scprtag{shift(@_)});
1904: }
1.112 bowersj2 1905:
1906: =pod
1907:
1908: =item * filecategories()
1909:
1910: returns list of all file categories
1911:
1912: =cut
1913:
1914: sub filecategories {
1915: return sort(keys(%category_extensions));
1916: }
1917:
1918: =pod
1919:
1920: =item * filecategorytypes()
1921:
1922: returns list of file types belonging to a given file
1923: category
1924:
1925: =cut
1926:
1927: sub filecategorytypes {
1928: return @{$category_extensions{lc($_[0])}};
1929: }
1930:
1931: =pod
1932:
1933: =item * fileembstyle()
1934:
1935: returns embedding style for a specified file type
1936:
1937: =cut
1938:
1939: sub fileembstyle {
1940: return $fe{lc(shift(@_))};
1.169 www 1941: }
1942:
1943:
1944: sub filecategoryselect {
1945: my ($name,$value)=@_;
1.189 matthew 1946: return &select_form($value,$name,
1.169 www 1947: '' => &mt('Any category'),
1948: map { $_,$_ } sort(keys(%category_extensions)));
1.112 bowersj2 1949: }
1950:
1951: =pod
1952:
1953: =item * filedescription()
1954:
1955: returns description for a specified file type
1956:
1957: =cut
1958:
1959: sub filedescription {
1.188 matthew 1960: my $file_description = $fd{lc(shift())};
1961: $file_description =~ s:([\[\]]):~$1:g;
1962: return &mt($file_description);
1.112 bowersj2 1963: }
1964:
1965: =pod
1966:
1967: =item * filedescriptionex()
1968:
1969: returns description for a specified file type with
1970: extra formatting
1971:
1972: =cut
1973:
1974: sub filedescriptionex {
1975: my $ex=shift;
1.188 matthew 1976: my $file_description = $fd{lc($ex)};
1977: $file_description =~ s:([\[\]]):~$1:g;
1978: return '.'.$ex.' '.&mt($file_description);
1.112 bowersj2 1979: }
1980:
1981: # End of .tab access
1982: =pod
1983:
1984: =back
1985:
1986: =cut
1987:
1988: # ------------------------------------------------------------------ File Types
1989: sub fileextensions {
1990: return sort(keys(%fe));
1991: }
1992:
1.97 www 1993: # ----------------------------------------------------------- Display Languages
1994: # returns a hash with all desired display languages
1995: #
1996:
1997: sub display_languages {
1998: my %languages=();
1.118 www 1999: foreach (&preferred_languages()) {
2000: $languages{$_}=1;
1.97 www 2001: }
2002: &get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']);
2003: if ($ENV{'form.displaylanguage'}) {
2004: foreach (split(/\s*(\,|\;|\:)\s*/,$ENV{'form.displaylanguage'})) {
2005: $languages{$_}=1;
2006: }
2007: }
2008: return %languages;
1.14 harris41 2009: }
2010:
1.117 www 2011: sub preferred_languages {
2012: my @languages=();
2013: if ($ENV{'course.'.$ENV{'request.course.id'}.'.languages'}) {
2014: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,
2015: $ENV{'course.'.$ENV{'request.course.id'}.'.languages'}));
1.177 www 2016: }
2017: if ($ENV{'environment.languages'}) {
2018: @languages=split(/\s*(\,|\;|\:)\s*/,$ENV{'environment.languages'});
1.118 www 2019: }
1.162 www 2020: my $browser=(split(/\;/,$ENV{'HTTP_ACCEPT_LANGUAGE'}))[0];
2021: if ($browser) {
2022: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$browser));
2023: }
1.118 www 2024: if ($Apache::lonnet::domain_lang_def{$ENV{'user.domain'}}) {
2025: @languages=(@languages,
2026: $Apache::lonnet::domain_lang_def{$ENV{'user.domain'}});
2027: }
2028: if ($Apache::lonnet::domain_lang_def{$ENV{'request.role.domain'}}) {
2029: @languages=(@languages,
2030: $Apache::lonnet::domain_lang_def{$ENV{'request.role.domain'}});
2031: }
2032: if ($Apache::lonnet::domain_lang_def{
2033: $Apache::lonnet::perlvar{'lonDefDomain'}}) {
2034: @languages=(@languages,
2035: $Apache::lonnet::domain_lang_def{
2036: $Apache::lonnet::perlvar{'lonDefDomain'}});
2037: }
2038: # turn "en-ca" into "en-ca,en"
2039: my @genlanguages;
2040: foreach (@languages) {
2041: unless ($_=~/\w/) { next; }
2042: push (@genlanguages,$_);
2043: if ($_=~/(\-|\_)/) {
2044: push (@genlanguages,(split(/(\-|\_)/,$_))[0]);
2045: }
2046: }
2047: return @genlanguages;
1.117 www 2048: }
2049:
1.112 bowersj2 2050: ###############################################################
2051: ## Student Answer Attempts ##
2052: ###############################################################
2053:
2054: =pod
2055:
2056: =head1 Alternate Problem Views
2057:
2058: =over 4
2059:
2060: =item * get_previous_attempt($symb, $username, $domain, $course,
2061: $getattempt, $regexp, $gradesub)
2062:
2063: Return string with previous attempt on problem. Arguments:
2064:
2065: =over 4
2066:
2067: =item * $symb: Problem, including path
2068:
2069: =item * $username: username of the desired student
2070:
2071: =item * $domain: domain of the desired student
1.14 harris41 2072:
1.112 bowersj2 2073: =item * $course: Course ID
1.14 harris41 2074:
1.112 bowersj2 2075: =item * $getattempt: Leave blank for all attempts, otherwise put
2076: something
1.14 harris41 2077:
1.112 bowersj2 2078: =item * $regexp: if string matches this regexp, the string will be
2079: sent to $gradesub
1.14 harris41 2080:
1.112 bowersj2 2081: =item * $gradesub: routine that processes the string if it matches $regexp
1.14 harris41 2082:
1.112 bowersj2 2083: =back
1.14 harris41 2084:
1.112 bowersj2 2085: The output string is a table containing all desired attempts, if any.
1.16 harris41 2086:
1.112 bowersj2 2087: =cut
1.1 albertel 2088:
2089: sub get_previous_attempt {
1.43 ng 2090: my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub)=@_;
1.1 albertel 2091: my $prevattempts='';
1.43 ng 2092: no strict 'refs';
1.1 albertel 2093: if ($symb) {
1.3 albertel 2094: my (%returnhash)=
2095: &Apache::lonnet::restore($symb,$course,$domain,$username);
1.1 albertel 2096: if ($returnhash{'version'}) {
2097: my %lasthash=();
2098: my $version;
2099: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.19 harris41 2100: foreach (sort(split(/\:/,$returnhash{$version.':keys'}))) {
1.1 albertel 2101: $lasthash{$_}=$returnhash{$version.':'.$_};
1.19 harris41 2102: }
1.1 albertel 2103: }
1.43 ng 2104: $prevattempts='<table border="0" width="100%"><tr><td bgcolor="#777777">';
1.40 ng 2105: $prevattempts.='<table border="0" width="100%"><tr bgcolor="#e6ffff"><td>History</td>';
1.16 harris41 2106: foreach (sort(keys %lasthash)) {
1.31 albertel 2107: my ($ign,@parts) = split(/\./,$_);
1.41 ng 2108: if ($#parts > 0) {
1.31 albertel 2109: my $data=$parts[-1];
2110: pop(@parts);
1.40 ng 2111: $prevattempts.='<td>Part '.join('.',@parts).'<br />'.$data.' </td>';
1.31 albertel 2112: } else {
1.41 ng 2113: if ($#parts == 0) {
2114: $prevattempts.='<th>'.$parts[0].'</th>';
2115: } else {
2116: $prevattempts.='<th>'.$ign.'</th>';
2117: }
1.31 albertel 2118: }
1.16 harris41 2119: }
1.40 ng 2120: if ($getattempt eq '') {
2121: for ($version=1;$version<=$returnhash{'version'};$version++) {
2122: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Transaction '.$version.'</td>';
2123: foreach (sort(keys %lasthash)) {
2124: my $value;
2125: if ($_ =~ /timestamp/) {
2126: $value=scalar(localtime($returnhash{$version.':'.$_}));
2127: } else {
2128: $value=$returnhash{$version.':'.$_};
2129: }
1.142 albertel 2130: $prevattempts.='<td>'.&Apache::lonnet::unescape($value).' </td>';
1.40 ng 2131: }
2132: }
1.1 albertel 2133: }
1.40 ng 2134: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Current</td>';
1.16 harris41 2135: foreach (sort(keys %lasthash)) {
1.5 albertel 2136: my $value;
2137: if ($_ =~ /timestamp/) {
2138: $value=scalar(localtime($lasthash{$_}));
2139: } else {
2140: $value=$lasthash{$_};
2141: }
1.142 albertel 2142: $value=&Apache::lonnet::unescape($value);
1.49 ng 2143: if ($_ =~/$regexp$/ && (defined &$gradesub)) {$value = &$gradesub($value)}
1.40 ng 2144: $prevattempts.='<td>'.$value.' </td>';
1.16 harris41 2145: }
1.40 ng 2146: $prevattempts.='</tr></table></td></tr></table>';
1.1 albertel 2147: } else {
2148: $prevattempts='Nothing submitted - no attempts.';
2149: }
2150: } else {
2151: $prevattempts='No data.';
2152: }
1.10 albertel 2153: }
2154:
1.107 albertel 2155: sub relative_to_absolute {
2156: my ($url,$output)=@_;
2157: my $parser=HTML::TokeParser->new(\$output);
2158: my $token;
2159: my $thisdir=$url;
2160: my @rlinks=();
2161: while ($token=$parser->get_token) {
2162: if ($token->[0] eq 'S') {
2163: if ($token->[1] eq 'a') {
2164: if ($token->[2]->{'href'}) {
2165: $rlinks[$#rlinks+1]=$token->[2]->{'href'};
2166: }
2167: } elsif ($token->[1] eq 'img' || $token->[1] eq 'embed' ) {
2168: $rlinks[$#rlinks+1]=$token->[2]->{'src'};
2169: } elsif ($token->[1] eq 'base') {
2170: $thisdir=$token->[2]->{'href'};
2171: }
2172: }
2173: }
2174: $thisdir=~s-/[^/]*$--;
2175: foreach (@rlinks) {
2176: unless (($_=~/^http:\/\//i) ||
2177: ($_=~/^\//) ||
2178: ($_=~/^javascript:/i) ||
2179: ($_=~/^mailto:/i) ||
2180: ($_=~/^\#/)) {
2181: my $newlocation=&Apache::lonnet::hreflocation($thisdir,$_);
2182: $output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/;
2183: }
2184: }
2185: # -------------------------------------------------- Deal with Applet codebases
2186: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
2187: return $output;
2188: }
2189:
1.112 bowersj2 2190: =pod
2191:
2192: =item * get_student_view
2193:
2194: show a snapshot of what student was looking at
2195:
2196: =cut
2197:
1.10 albertel 2198: sub get_student_view {
1.186 albertel 2199: my ($symb,$username,$domain,$courseid,$target,$moreenv) = @_;
1.114 www 2200: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2201: my (%form);
1.10 albertel 2202: my @elements=('symb','courseid','domain','username');
2203: foreach my $element (@elements) {
1.186 albertel 2204: $form{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2205: }
1.186 albertel 2206: if (defined($moreenv)) {
2207: %form=(%form,%{$moreenv});
2208: }
2209: if ($target eq 'tex') {$form{'grade_target'} = 'tex';}
1.107 albertel 2210: $feedurl=&Apache::lonnet::clutter($feedurl);
1.186 albertel 2211: my $userview=&Apache::lonnet::ssi_body($feedurl,%form);
1.11 albertel 2212: $userview=~s/\<body[^\>]*\>//gi;
2213: $userview=~s/\<\/body\>//gi;
2214: $userview=~s/\<html\>//gi;
2215: $userview=~s/\<\/html\>//gi;
2216: $userview=~s/\<head\>//gi;
2217: $userview=~s/\<\/head\>//gi;
2218: $userview=~s/action\s*\=/would_be_action\=/gi;
1.107 albertel 2219: $userview=&relative_to_absolute($feedurl,$userview);
1.11 albertel 2220: return $userview;
2221: }
2222:
1.112 bowersj2 2223: =pod
2224:
2225: =item * get_student_answers()
2226:
2227: show a snapshot of how student was answering problem
2228:
2229: =cut
2230:
1.11 albertel 2231: sub get_student_answers {
1.100 sakharuk 2232: my ($symb,$username,$domain,$courseid,%form) = @_;
1.114 www 2233: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2234: my (%moreenv);
1.11 albertel 2235: my @elements=('symb','courseid','domain','username');
2236: foreach my $element (@elements) {
1.186 albertel 2237: $moreenv{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2238: }
1.186 albertel 2239: $moreenv{'grade_target'}='answer';
2240: %moreenv=(%form,%moreenv);
2241: my $userview=&Apache::lonnet::ssi('/res/'.$feedurl,%moreenv);
1.10 albertel 2242: return $userview;
1.1 albertel 2243: }
1.116 albertel 2244:
2245: =pod
2246:
2247: =item * &submlink()
2248:
2249: Inputs: $text $uname $udom $symb
2250:
2251: Returns: A link to grades.pm such as to see the SUBM view of a student
2252:
2253: =cut
2254:
2255: ###############################################
2256: sub submlink {
2257: my ($text,$uname,$udom,$symb)=@_;
2258: if (!($uname && $udom)) {
2259: (my $cursymb, my $courseid,$udom,$uname)=
2260: &Apache::lonxml::whichuser($symb);
2261: if (!$symb) { $symb=$cursymb; }
2262: }
2263: if (!$symb) { $symb=&symbread(); }
2264: return '<a href="/adm/grades?symb='.$symb.'&student='.$uname.
2265: '&userdom='.$udom.'&command=submission">'.$text.'</a>';
2266: }
2267: ##############################################
1.37 matthew 2268:
1.112 bowersj2 2269: =pod
2270:
2271: =back
2272:
2273: =cut
2274:
1.37 matthew 2275: ###############################################
1.51 www 2276:
2277:
2278: sub timehash {
2279: my @ltime=localtime(shift);
2280: return ( 'seconds' => $ltime[0],
2281: 'minutes' => $ltime[1],
2282: 'hours' => $ltime[2],
2283: 'day' => $ltime[3],
2284: 'month' => $ltime[4]+1,
2285: 'year' => $ltime[5]+1900,
2286: 'weekday' => $ltime[6],
2287: 'dayyear' => $ltime[7]+1,
2288: 'dlsav' => $ltime[8] );
2289: }
2290:
2291: sub maketime {
2292: my %th=@_;
2293: return POSIX::mktime(
2294: ($th{'seconds'},$th{'minutes'},$th{'hours'},
2295: $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,$th{'dlsav'}));
1.70 www 2296: }
2297:
2298: #########################################
1.51 www 2299:
2300: sub findallcourses {
2301: my %courses=();
2302: my $now=time;
2303: foreach (keys %ENV) {
2304: if ($_=~/^user\.role\.\w+\.\/(\w+)\/(\w+)/) {
2305: my ($starttime,$endtime)=$ENV{$_};
2306: my $active=1;
2307: if ($starttime) {
2308: if ($now<$starttime) { $active=0; }
2309: }
2310: if ($endtime) {
2311: if ($now>$endtime) { $active=0; }
2312: }
2313: if ($active) { $courses{$1.'_'.$2}=1; }
2314: }
2315: }
2316: return keys %courses;
2317: }
1.37 matthew 2318:
1.54 www 2319: ###############################################
1.60 matthew 2320: ###############################################
2321:
2322: =pod
2323:
1.112 bowersj2 2324: =head1 Domain Template Functions
2325:
2326: =over 4
2327:
2328: =item * &determinedomain()
1.60 matthew 2329:
2330: Inputs: $domain (usually will be undef)
2331:
1.63 www 2332: Returns: Determines which domain should be used for designs
1.60 matthew 2333:
2334: =cut
1.54 www 2335:
1.60 matthew 2336: ###############################################
1.63 www 2337: sub determinedomain {
2338: my $domain=shift;
2339: if (! $domain) {
1.60 matthew 2340: # Determine domain if we have not been given one
2341: $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
2342: if ($ENV{'user.domain'}) { $domain=$ENV{'user.domain'}; }
2343: if ($ENV{'request.role.domain'}) {
2344: $domain=$ENV{'request.role.domain'};
2345: }
2346: }
1.63 www 2347: return $domain;
2348: }
2349: ###############################################
2350: =pod
2351:
1.112 bowersj2 2352: =item * &domainlogo()
1.63 www 2353:
2354: Inputs: $domain (usually will be undef)
2355:
2356: Returns: A link to a domain logo, if the domain logo exists.
2357: If the domain logo does not exist, a description of the domain.
2358:
2359: =cut
1.112 bowersj2 2360:
1.63 www 2361: ###############################################
2362: sub domainlogo {
2363: my $domain = &determinedomain(shift);
2364: # See if there is a logo
1.59 www 2365: if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') {
1.83 albertel 2366: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
2367: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
2368: return '<img src="http://'.$ENV{'HTTP_HOST'}.':'.$lonhttpdPort.
1.150 matthew 2369: '/adm/lonDomLogos/'.$domain.'.gif" alt="'.$domain.'" />';
1.60 matthew 2370: } elsif(exists($Apache::lonnet::domaindescription{$domain})) {
2371: return $Apache::lonnet::domaindescription{$domain};
1.59 www 2372: } else {
1.60 matthew 2373: return '';
1.59 www 2374: }
2375: }
1.63 www 2376: ##############################################
2377:
2378: =pod
2379:
1.112 bowersj2 2380: =item * &designparm()
1.63 www 2381:
2382: Inputs: $which parameter; $domain (usually will be undef)
2383:
2384: Returns: value of designparamter $which
2385:
2386: =cut
1.112 bowersj2 2387:
1.63 www 2388: ##############################################
2389: sub designparm {
2390: my ($which,$domain)=@_;
1.110 www 2391: if ($ENV{'browser.blackwhite'} eq 'on') {
2392: if ($which=~/\.(font|alink|vlink|link)$/) {
2393: return '#000000';
2394: }
2395: if ($which=~/\.(pgbg|sidebg)$/) {
2396: return '#FFFFFF';
2397: }
2398: if ($which=~/\.tabbg$/) {
2399: return '#CCCCCC';
2400: }
2401: }
1.96 www 2402: if ($ENV{'environment.color.'.$which}) {
2403: return $ENV{'environment.color.'.$which};
2404: }
1.63 www 2405: $domain=&determinedomain($domain);
2406: if ($designhash{$domain.'.'.$which}) {
2407: return $designhash{$domain.'.'.$which};
2408: } else {
2409: return $designhash{'default.'.$which};
2410: }
2411: }
1.59 www 2412:
1.60 matthew 2413: ###############################################
2414: ###############################################
2415:
2416: =pod
2417:
1.112 bowersj2 2418: =back
2419:
2420: =head1 HTTP Helpers
2421:
2422: =over 4
2423:
2424: =item * &bodytag()
1.60 matthew 2425:
2426: Returns a uniform header for LON-CAPA web pages.
2427:
2428: Inputs:
2429:
1.112 bowersj2 2430: =over 4
2431:
2432: =item * $title, A title to be displayed on the page.
2433:
2434: =item * $function, the current role (can be undef).
2435:
2436: =item * $addentries, extra parameters for the <body> tag.
2437:
2438: =item * $bodyonly, if defined, only return the <body> tag.
2439:
2440: =item * $domain, if defined, force a given domain.
2441:
2442: =item * $forcereg, if page should register as content page (relevant for
1.86 www 2443: text interface only)
1.60 matthew 2444:
1.112 bowersj2 2445: =back
2446:
1.60 matthew 2447: Returns: A uniform header for LON-CAPA web pages.
2448: If $bodyonly is nonzero, a string containing a <body> tag will be returned.
2449: If $bodyonly is undef or zero, an html string containing a <body> tag and
2450: other decorations will be returned.
2451:
2452: =cut
2453:
1.54 www 2454: sub bodytag {
1.86 www 2455: my ($title,$function,$addentries,$bodyonly,$domain,$forcereg)=@_;
1.117 www 2456: $title=&mt($title);
1.183 matthew 2457: $function = &get_users_function() if (!$function);
1.63 www 2458: my $img=&designparm($function.'.img',$domain);
2459: my $pgbg=&designparm($function.'.pgbg',$domain);
2460: my $tabbg=&designparm($function.'.tabbg',$domain);
2461: my $font=&designparm($function.'.font',$domain);
2462: my $link=&designparm($function.'.link',$domain);
2463: my $alink=&designparm($function.'.alink',$domain);
2464: my $vlink=&designparm($function.'.vlink',$domain);
2465: my $sidebg=&designparm($function.'.sidebg',$domain);
1.110 www 2466: # Accessibility font enhance
2467: unless ($addentries) { $addentries=''; }
1.146 www 2468: my $addstyle='';
1.110 www 2469: if ($ENV{'browser.fontenhance'} eq 'on') {
1.146 www 2470: $addstyle=' font-size: x-large;';
1.110 www 2471: }
1.63 www 2472: # role and realm
1.55 www 2473: my ($role,$realm)
2474: =&Apache::lonnet::plaintext((split(/\./,$ENV{'request.role'}))[0]);
2475: # realm
1.54 www 2476: if ($ENV{'request.course.id'}) {
1.55 www 2477: $realm=
2478: $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1.54 www 2479: }
1.55 www 2480: unless ($realm) { $realm=' '; }
2481: # Set messages
1.60 matthew 2482: my $messages=&domainlogo($domain);
1.101 www 2483: # Port for miniserver
1.83 albertel 2484: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
2485: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
1.101 www 2486: # construct main body tag
1.60 matthew 2487: my $bodytag = <<END;
1.146 www 2488: <style>
1.147 www 2489: h1, h2, h3, th { font-family: Arial, Helvetica, sans-serif }
1.146 www 2490: a:focus { color: red; background: yellow }
2491: </style>
1.54 www 2492: <body bgcolor="$pgbg" text="$font" alink="$alink" vlink="$vlink" link="$link"
1.151 www 2493: style="margin-top: 0px;$addstyle" $addentries>
1.60 matthew 2494: END
1.94 www 2495: my $upperleft='<img src="http://'.$ENV{'HTTP_HOST'}.':'.
1.150 matthew 2496: $lonhttpdPort.$img.'" alt="'.$function.'" />';
1.60 matthew 2497: if ($bodyonly) {
2498: return $bodytag;
1.79 www 2499: } elsif ($ENV{'browser.interface'} eq 'textual') {
1.95 www 2500: # Accessibility
1.93 www 2501: return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web',
2502: $forcereg).
2503: '<h1>LON-CAPA: '.$title.'</h1>';
2504: } elsif ($ENV{'environment.remote'} eq 'off') {
1.95 www 2505: # No Remote
2506: return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web',
2507: $forcereg).
1.151 www 2508: '<table bgcolor="'.$pgbg.'" width="100%" border="0" cellspacing="3" cellpadding="3"><tr><td bgcolor="'.$tabbg.'"><font face="Arial, Helvetica, sans-serif" size="+3" color="'.$font.'"><b>'.$title.
1.95 www 2509: '</b></font></td></tr></table>';
1.94 www 2510: }
1.95 www 2511:
1.93 www 2512: #
1.95 www 2513: # Top frame rendering, Remote is up
1.93 www 2514: #
1.94 www 2515: return(<<ENDBODY);
1.60 matthew 2516: $bodytag
1.55 www 2517: <table width="100%" cellspacing="0" border="0" cellpadding="0">
1.95 www 2518: <tr><td bgcolor="$sidebg">
1.94 www 2519: $upperleft</td>
1.95 www 2520: <td bgcolor="$sidebg" align="right">$messages </td>
1.55 www 2521: </tr>
1.54 www 2522: <tr>
1.55 www 2523: <td rowspan="3" bgcolor="$tabbg">
1.146 www 2524: <font size="5" face="Arial, Helvetica, sans-serif"><b>$title</b></font>
2525: <td bgcolor="$tabbg" align="right">
2526: <font size="2" face="Arial, Helvetica, sans-serif">
1.54 www 2527: $ENV{'environment.firstname'}
2528: $ENV{'environment.middlename'}
2529: $ENV{'environment.lastname'}
2530: $ENV{'environment.generation'}
1.55 www 2531: </font>
1.54 www 2532: </td>
2533: </tr>
2534: <tr><td bgcolor="$tabbg" align="right">
1.146 www 2535: <font size="2" face="Arial, Helvetica, sans-serif">$role</font>
1.54 www 2536: </td></tr>
1.55 www 2537: <tr>
1.148 www 2538: <td bgcolor="$tabbg" align="right"><font size="2" face="Arial, Helvetica, sans-serif">$realm</font> </td></tr>
1.54 www 2539: </table><br>
2540: ENDBODY
1.182 matthew 2541: }
2542:
2543: ###############################################
2544:
2545: =pod
2546:
2547: =item get_users_function
2548:
2549: Used by &bodytag to determine the current users primary role.
2550: Returns either 'student','coordinator','admin', or 'author'.
2551:
2552: =cut
2553:
2554: ###############################################
2555: sub get_users_function {
2556: my $function = 'student';
2557: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
2558: $function='coordinator';
2559: }
2560: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
2561: $function='admin';
2562: }
2563: if (($ENV{'request.role'}=~/^(au|ca)/) ||
2564: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
2565: $function='author';
2566: }
2567: return $function;
1.54 www 2568: }
1.99 www 2569:
2570: ###############################################
2571:
2572: sub get_posted_cgi {
2573: my $r=shift;
2574:
2575: my $buffer;
2576:
2577: $r->read($buffer,$r->header_in('Content-length'),0);
2578: unless ($buffer=~/^(\-+\w+)\s+Content\-Disposition\:\s*form\-data/si) {
2579: my @pairs=split(/&/,$buffer);
2580: my $pair;
2581: foreach $pair (@pairs) {
2582: my ($name,$value) = split(/=/,$pair);
2583: $value =~ tr/+/ /;
2584: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2585: $name =~ tr/+/ /;
2586: $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2587: &add_to_env("form.$name",$value);
2588: }
2589: } else {
2590: my $contentsep=$1;
2591: my @lines = split (/\n/,$buffer);
2592: my $name='';
2593: my $value='';
2594: my $fname='';
2595: my $fmime='';
2596: my $i;
2597: for ($i=0;$i<=$#lines;$i++) {
2598: if ($lines[$i]=~/^$contentsep/) {
2599: if ($name) {
2600: chomp($value);
2601: if ($fname) {
2602: $ENV{"form.$name.filename"}=$fname;
2603: $ENV{"form.$name.mimetype"}=$fmime;
2604: } else {
2605: $value=~s/\s+$//s;
2606: }
2607: &add_to_env("form.$name",$value);
2608: }
2609: if ($i<$#lines) {
2610: $i++;
2611: $lines[$i]=~
2612: /Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i;
2613: $name=$1;
2614: $value='';
2615: if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) {
2616: $fname=$1;
2617: if
2618: ($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) {
2619: $fmime=$1;
2620: $i++;
2621: } else {
2622: $fmime='';
2623: }
2624: } else {
2625: $fname='';
2626: $fmime='';
2627: }
2628: $i++;
2629: }
2630: } else {
2631: $value.=$lines[$i]."\n";
2632: }
2633: }
2634: }
2635: $ENV{'request.method'}=$ENV{'REQUEST_METHOD'};
2636: $r->method_number(M_GET);
2637: $r->method('GET');
2638: $r->headers_in->unset('Content-length');
2639: }
2640:
1.112 bowersj2 2641: =pod
2642:
2643: =item * get_unprocessed_cgi($query,$possible_names)
2644:
2645: Modify the %ENV hash to contain unprocessed CGI form parameters held in
2646: $query. The parameters listed in $possible_names (an array reference),
2647: will be set in $ENV{'form.name'} if they do not already exist.
2648:
2649: Typically called with $ENV{'QUERY_STRING'} as the first parameter.
2650: $possible_names is an ref to an array of form element names. As an example:
2651: get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);
2652: will result in $ENV{'form.uname'} and $ENV{'form.udom'} being set.
2653:
2654: =cut
1.1 albertel 2655:
1.6 albertel 2656: sub get_unprocessed_cgi {
1.25 albertel 2657: my ($query,$possible_names)= @_;
1.26 matthew 2658: # $Apache::lonxml::debug=1;
1.16 harris41 2659: foreach (split(/&/,$query)) {
1.6 albertel 2660: my ($name, $value) = split(/=/,$_);
1.25 albertel 2661: $name = &Apache::lonnet::unescape($name);
2662: if (!defined($possible_names) || (grep {$_ eq $name} @$possible_names)) {
2663: $value =~ tr/+/ /;
2664: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2665: &Apache::lonxml::debug("Seting :$name: to :$value:");
1.30 albertel 2666: unless (defined($ENV{'form.'.$name})) { &add_to_env('form.'.$name,$value) };
1.25 albertel 2667: }
1.16 harris41 2668: }
1.6 albertel 2669: }
2670:
1.112 bowersj2 2671: =pod
2672:
2673: =item * cacheheader()
2674:
2675: returns cache-controlling header code
2676:
2677: =cut
2678:
1.7 albertel 2679: sub cacheheader {
1.23 www 2680: unless ($ENV{'request.method'} eq 'GET') { return ''; }
1.8 albertel 2681: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
1.7 albertel 2682: my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
2683: <meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />
2684: <meta HTTP-EQUIV="Pragma" CONTENT="no-cache" />';
2685: return $output;
2686: }
2687:
1.112 bowersj2 2688: =pod
2689:
2690: =item * no_cache($r)
2691:
2692: specifies header code to not have cache
2693:
2694: =cut
2695:
1.9 albertel 2696: sub no_cache {
2697: my ($r) = @_;
1.23 www 2698: unless ($ENV{'request.method'} eq 'GET') { return ''; }
1.24 albertel 2699: #my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
1.9 albertel 2700: $r->no_cache(1);
2701: $r->header_out("Pragma" => "no-cache");
1.24 albertel 2702: #$r->header_out("Expires" => $date);
1.123 www 2703: }
2704:
2705: sub content_type {
1.181 albertel 2706: my ($r,$type,$charset) = @_;
2707: unless ($charset) {
2708: $charset=&Apache::lonlocal::current_encoding;
2709: }
2710: if ($charset) { $type.='; charset='.$charset; }
2711: if ($r) {
2712: $r->content_type($type);
2713: } else {
2714: print("Content-type: $type\n\n");
2715: }
1.9 albertel 2716: }
1.25 albertel 2717:
1.112 bowersj2 2718: =pod
2719:
2720: =item * add_to_env($name,$value)
2721:
2722: adds $name to the %ENV hash with value
2723: $value, if $name already exists, the entry is converted to an array
2724: reference and $value is added to the array.
2725:
2726: =cut
2727:
1.25 albertel 2728: sub add_to_env {
2729: my ($name,$value)=@_;
1.28 albertel 2730: if (defined($ENV{$name})) {
1.27 albertel 2731: if (ref($ENV{$name})) {
1.25 albertel 2732: #already have multiple values
2733: push(@{ $ENV{$name} },$value);
2734: } else {
2735: #first time seeing multiple values, convert hash entry to an arrayref
2736: my $first=$ENV{$name};
2737: undef($ENV{$name});
2738: push(@{ $ENV{$name} },$first,$value);
2739: }
2740: } else {
2741: $ENV{$name}=$value;
2742: }
1.31 albertel 2743: }
1.149 albertel 2744:
2745: =pod
2746:
2747: =item * get_env_multiple($name)
2748:
2749: gets $name from the %ENV hash, it seemlessly handles the cases where multiple
2750: values may be defined and end up as an array ref.
2751:
2752: returns an array of values
2753:
2754: =cut
2755:
2756: sub get_env_multiple {
2757: my ($name) = @_;
2758: my @values;
2759: if (defined($ENV{$name})) {
2760: # exists is it an array
2761: if (ref($ENV{$name})) {
2762: @values=@{ $ENV{$name} };
2763: } else {
2764: $values[0]=$ENV{$name};
2765: }
2766: }
2767: return(@values);
2768: }
2769:
1.31 albertel 2770:
1.41 ng 2771: =pod
1.45 matthew 2772:
2773: =back
1.41 ng 2774:
1.112 bowersj2 2775: =head1 CSV Upload/Handling functions
1.38 albertel 2776:
1.41 ng 2777: =over 4
2778:
1.112 bowersj2 2779: =item * upfile_store($r)
1.41 ng 2780:
2781: Store uploaded file, $r should be the HTTP Request object,
2782: needs $ENV{'form.upfile'}
2783: returns $datatoken to be put into hidden field
2784:
2785: =cut
1.31 albertel 2786:
2787: sub upfile_store {
2788: my $r=shift;
2789: $ENV{'form.upfile'}=~s/\r/\n/gs;
2790: $ENV{'form.upfile'}=~s/\f/\n/gs;
2791: $ENV{'form.upfile'}=~s/\n+/\n/gs;
2792: $ENV{'form.upfile'}=~s/\n+$//gs;
2793:
2794: my $datatoken=$ENV{'user.name'}.'_'.$ENV{'user.domain'}.
2795: '_enroll_'.$ENV{'request.course.id'}.'_'.time.'_'.$$;
2796: {
1.158 raeburn 2797: my $datafile = $r->dir_config('lonDaemons').
2798: '/tmp/'.$datatoken.'.tmp';
2799: if ( open(my $fh,">$datafile") ) {
2800: print $fh $ENV{'form.upfile'};
2801: close($fh);
2802: }
1.31 albertel 2803: }
2804: return $datatoken;
2805: }
2806:
1.56 matthew 2807: =pod
2808:
1.112 bowersj2 2809: =item * load_tmp_file($r)
1.41 ng 2810:
2811: Load uploaded file from tmp, $r should be the HTTP Request object,
2812: needs $ENV{'form.datatoken'},
2813: sets $ENV{'form.upfile'} to the contents of the file
2814:
2815: =cut
1.31 albertel 2816:
2817: sub load_tmp_file {
2818: my $r=shift;
2819: my @studentdata=();
2820: {
1.158 raeburn 2821: my $studentfile = $r->dir_config('lonDaemons').
2822: '/tmp/'.$ENV{'form.datatoken'}.'.tmp';
2823: if ( open(my $fh,"<$studentfile") ) {
2824: @studentdata=<$fh>;
2825: close($fh);
2826: }
1.31 albertel 2827: }
2828: $ENV{'form.upfile'}=join('',@studentdata);
2829: }
2830:
1.56 matthew 2831: =pod
2832:
1.112 bowersj2 2833: =item * upfile_record_sep()
1.41 ng 2834:
2835: Separate uploaded file into records
2836: returns array of records,
2837: needs $ENV{'form.upfile'} and $ENV{'form.upfiletype'}
2838:
2839: =cut
1.31 albertel 2840:
2841: sub upfile_record_sep {
2842: if ($ENV{'form.upfiletype'} eq 'xml') {
2843: } else {
2844: return split(/\n/,$ENV{'form.upfile'});
2845: }
2846: }
2847:
1.56 matthew 2848: =pod
2849:
1.112 bowersj2 2850: =item * record_sep($record)
1.41 ng 2851:
2852: Separate a record into fields $record should be an item from the upfile_record_sep(), needs $ENV{'form.upfiletype'}
2853:
2854: =cut
2855:
1.31 albertel 2856: sub record_sep {
2857: my $record=shift;
2858: my %components=();
2859: if ($ENV{'form.upfiletype'} eq 'xml') {
2860: } elsif ($ENV{'form.upfiletype'} eq 'space') {
2861: my $i=0;
2862: foreach (split(/\s+/,$record)) {
2863: my $field=$_;
2864: $field=~s/^(\"|\')//;
2865: $field=~s/(\"|\')$//;
2866: $components{$i}=$field;
2867: $i++;
2868: }
2869: } elsif ($ENV{'form.upfiletype'} eq 'tab') {
2870: my $i=0;
1.171 matthew 2871: foreach (split(/\t/,$record)) {
1.31 albertel 2872: my $field=$_;
2873: $field=~s/^(\"|\')//;
2874: $field=~s/(\"|\')$//;
2875: $components{$i}=$field;
2876: $i++;
2877: }
2878: } else {
2879: my @allfields=split(/\,/,$record);
2880: my $i=0;
2881: my $j;
2882: for ($j=0;$j<=$#allfields;$j++) {
2883: my $field=$allfields[$j];
2884: if ($field=~/^\s*(\"|\')/) {
2885: my $delimiter=$1;
2886: while (($field!~/$delimiter$/) && ($j<$#allfields)) {
2887: $j++;
2888: $field.=','.$allfields[$j];
2889: }
2890: $field=~s/^\s*$delimiter//;
2891: $field=~s/$delimiter\s*$//;
2892: }
2893: $components{$i}=$field;
2894: $i++;
2895: }
2896: }
2897: return %components;
2898: }
2899:
1.144 matthew 2900: ######################################################
2901: ######################################################
2902:
1.56 matthew 2903: =pod
2904:
1.112 bowersj2 2905: =item * upfile_select_html()
1.41 ng 2906:
1.144 matthew 2907: Return HTML code to select a file from the users machine and specify
2908: the file type.
1.41 ng 2909:
2910: =cut
2911:
1.144 matthew 2912: ######################################################
2913: ######################################################
1.31 albertel 2914: sub upfile_select_html {
1.144 matthew 2915: my %Types = (
2916: csv => &mt('CSV (comma separated values, spreadsheet)'),
2917: space => &mt('Space separated'),
2918: tab => &mt('Tabulator separated'),
2919: # xml => &mt('HTML/XML'),
2920: );
2921: my $Str = '<input type="file" name="upfile" size="50" />'.
2922: '<br />Type: <select name="upfiletype">';
2923: foreach my $type (sort(keys(%Types))) {
2924: $Str .= '<option value="'.$type.'" >'.$Types{$type}."</option>\n";
2925: }
2926: $Str .= "</select>\n";
2927: return $Str;
1.31 albertel 2928: }
2929:
1.144 matthew 2930: ######################################################
2931: ######################################################
2932:
1.56 matthew 2933: =pod
2934:
1.112 bowersj2 2935: =item * csv_print_samples($r,$records)
1.41 ng 2936:
2937: Prints a table of sample values from each column uploaded $r is an
2938: Apache Request ref, $records is an arrayref from
2939: &Apache::loncommon::upfile_record_sep
2940:
2941: =cut
2942:
1.144 matthew 2943: ######################################################
2944: ######################################################
1.31 albertel 2945: sub csv_print_samples {
2946: my ($r,$records) = @_;
2947: my (%sone,%stwo,%sthree);
2948: %sone=&record_sep($$records[0]);
2949: if (defined($$records[1])) {%stwo=&record_sep($$records[1]);}
2950: if (defined($$records[2])) {%sthree=&record_sep($$records[2]);}
1.144 matthew 2951: #
2952: $r->print(&mt('Samples').'<br /><table border="2"><tr>');
2953: foreach (sort({$a <=> $b} keys(%sone))) {
2954: $r->print('<th>'.&mt('Column [_1]',($_+1)).'</th>'); }
1.31 albertel 2955: $r->print('</tr>');
2956: foreach my $hash (\%sone,\%stwo,\%sthree) {
2957: $r->print('<tr>');
2958: foreach (sort({$a <=> $b} keys(%sone))) {
2959: $r->print('<td>');
2960: if (defined($$hash{$_})) { $r->print($$hash{$_}); }
2961: $r->print('</td>');
2962: }
2963: $r->print('</tr>');
2964: }
2965: $r->print('</tr></table><br />'."\n");
2966: }
2967:
1.144 matthew 2968: ######################################################
2969: ######################################################
2970:
1.56 matthew 2971: =pod
2972:
1.112 bowersj2 2973: =item * csv_print_select_table($r,$records,$d)
1.41 ng 2974:
2975: Prints a table to create associations between values and table columns.
1.144 matthew 2976:
1.41 ng 2977: $r is an Apache Request ref,
2978: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
1.174 matthew 2979: $d is an array of 2 element arrays (internal name, displayed name,defaultcol)
1.41 ng 2980:
2981: =cut
2982:
1.144 matthew 2983: ######################################################
2984: ######################################################
1.31 albertel 2985: sub csv_print_select_table {
2986: my ($r,$records,$d) = @_;
2987: my $i=0;my %sone;
2988: %sone=&record_sep($$records[0]);
1.144 matthew 2989: $r->print(&mt('Associate columns with student attributes.')."\n".
2990: '<table border="2"><tr>'.
2991: '<th>'.&mt('Attribute').'</th>'.
2992: '<th>'.&mt('Column').'</th></tr>'."\n");
1.31 albertel 2993: foreach (@$d) {
1.174 matthew 2994: my ($value,$display,$defaultcol)=@{ $_ };
1.31 albertel 2995: $r->print('<tr><td>'.$display.'</td>');
2996:
2997: $r->print('<td><select name=f'.$i.
1.32 matthew 2998: ' onchange="javascript:flip(this.form,'.$i.');">');
1.31 albertel 2999: $r->print('<option value="none"></option>');
3000: foreach (sort({$a <=> $b} keys(%sone))) {
1.174 matthew 3001: $r->print('<option value="'.$_.'"'.
3002: ($_ eq $defaultcol ? ' selected ' : '').
3003: '>Column '.($_+1).'</option>');
1.31 albertel 3004: }
3005: $r->print('</select></td></tr>'."\n");
3006: $i++;
3007: }
3008: $i--;
3009: return $i;
3010: }
1.56 matthew 3011:
1.144 matthew 3012: ######################################################
3013: ######################################################
3014:
1.56 matthew 3015: =pod
1.31 albertel 3016:
1.112 bowersj2 3017: =item * csv_samples_select_table($r,$records,$d)
1.41 ng 3018:
3019: Prints a table of sample values from the upload and can make associate samples to internal names.
3020:
3021: $r is an Apache Request ref,
3022: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
3023: $d is an array of 2 element arrays (internal name, displayed name)
3024:
3025: =cut
3026:
1.144 matthew 3027: ######################################################
3028: ######################################################
1.31 albertel 3029: sub csv_samples_select_table {
3030: my ($r,$records,$d) = @_;
3031: my %sone; my %stwo; my %sthree;
3032: my $i=0;
1.144 matthew 3033: #
3034: $r->print('<table border=2><tr><th>'.
3035: &mt('Field').'</th><th>'.&mt('Samples').'</th></tr>');
1.31 albertel 3036: %sone=&record_sep($$records[0]);
3037: if (defined($$records[1])) {%stwo=&record_sep($$records[1]);}
3038: if (defined($$records[2])) {%sthree=&record_sep($$records[2]);}
1.144 matthew 3039: #
1.31 albertel 3040: foreach (sort keys %sone) {
1.144 matthew 3041: $r->print('<tr><td><select name="f'.$i.'"'.
1.32 matthew 3042: ' onchange="javascript:flip(this.form,'.$i.');">');
1.31 albertel 3043: foreach (@$d) {
1.174 matthew 3044: my ($value,$display,$defaultcol)=@{ $_ };
3045: $r->print('<option value="'.$value.'"'.
3046: ($i eq $defaultcol ? ' selected ':'').'>'.
3047: $display.'</option>');
1.31 albertel 3048: }
3049: $r->print('</select></td><td>');
3050: if (defined($sone{$_})) { $r->print($sone{$_}."</br>\n"); }
3051: if (defined($stwo{$_})) { $r->print($stwo{$_}."</br>\n"); }
3052: if (defined($sthree{$_})) { $r->print($sthree{$_}."</br>\n"); }
3053: $r->print('</td></tr>');
3054: $i++;
3055: }
3056: $i--;
3057: return($i);
1.115 matthew 3058: }
3059:
1.144 matthew 3060: ######################################################
3061: ######################################################
3062:
1.115 matthew 3063: =pod
3064:
3065: =item clean_excel_name($name)
3066:
3067: Returns a replacement for $name which does not contain any illegal characters.
3068:
3069: =cut
3070:
1.144 matthew 3071: ######################################################
3072: ######################################################
1.115 matthew 3073: sub clean_excel_name {
3074: my ($name) = @_;
3075: $name =~ s/[:\*\?\/\\]//g;
3076: if (length($name) > 31) {
3077: $name = substr($name,0,31);
3078: }
3079: return $name;
1.25 albertel 3080: }
1.84 albertel 3081:
1.85 albertel 3082: =pod
3083:
1.112 bowersj2 3084: =item * check_if_partid_hidden($id,$symb,$udom,$uname)
1.85 albertel 3085:
3086: Returns either 1 or undef
3087:
3088: 1 if the part is to be hidden, undef if it is to be shown
3089:
3090: Arguments are:
3091:
3092: $id the id of the part to be checked
3093: $symb, optional the symb of the resource to check
3094: $udom, optional the domain of the user to check for
3095: $uname, optional the username of the user to check for
3096:
3097: =cut
1.84 albertel 3098:
3099: sub check_if_partid_hidden {
3100: my ($id,$symb,$udom,$uname) = @_;
1.133 albertel 3101: my $hiddenparts=&Apache::lonnet::EXT('resource.0.hiddenparts',
1.84 albertel 3102: $symb,$udom,$uname);
1.141 albertel 3103: my $truth=1;
3104: #if the string starts with !, then the list is the list to show not hide
3105: if ($hiddenparts=~s/^\s*!//) { $truth=undef; }
1.84 albertel 3106: my @hiddenlist=split(/,/,$hiddenparts);
3107: foreach my $checkid (@hiddenlist) {
1.141 albertel 3108: if ($checkid =~ /^\s*\Q$id\E\s*$/) { return $truth; }
1.84 albertel 3109: }
1.141 albertel 3110: return !$truth;
1.84 albertel 3111: }
1.127 matthew 3112:
1.138 matthew 3113:
3114: ############################################################
3115: ############################################################
3116:
3117: =pod
3118:
1.157 matthew 3119: =back
3120:
1.138 matthew 3121: =head1 cgi-bin script and graphing routines
3122:
1.157 matthew 3123: =over 4
3124:
1.138 matthew 3125: =item get_cgi_id
3126:
3127: Inputs: none
3128:
3129: Returns an id which can be used to pass environment variables
3130: to various cgi-bin scripts. These environment variables will
3131: be removed from the users environment after a given time by
3132: the routine &Apache::lonnet::transfer_profile_to_env.
3133:
3134: =cut
3135:
3136: ############################################################
3137: ############################################################
1.152 albertel 3138: my $uniq=0;
1.136 matthew 3139: sub get_cgi_id {
1.154 albertel 3140: $uniq=($uniq+1)%100000;
1.152 albertel 3141: return (time.'_'.$uniq);
1.136 matthew 3142: }
3143:
1.127 matthew 3144: ############################################################
3145: ############################################################
3146:
3147: =pod
3148:
1.134 matthew 3149: =item DrawBarGraph
1.127 matthew 3150:
1.138 matthew 3151: Facilitates the plotting of data in a (stacked) bar graph.
3152: Puts plot definition data into the users environment in order for
3153: graph.png to plot it. Returns an <img> tag for the plot.
3154: The bars on the plot are labeled '1','2',...,'n'.
3155:
3156: Inputs:
3157:
3158: =over 4
3159:
3160: =item $Title: string, the title of the plot
3161:
3162: =item $xlabel: string, text describing the X-axis of the plot
3163:
3164: =item $ylabel: string, text describing the Y-axis of the plot
3165:
3166: =item $Max: scalar, the maximum Y value to use in the plot
3167: If $Max is < any data point, the graph will not be rendered.
3168:
1.140 matthew 3169: =item $colors: array ref holding the colors to be used for the data sets when
1.138 matthew 3170: they are plotted. If undefined, default values will be used.
3171:
1.178 matthew 3172: =item $labels: array ref holding the labels to use on the x-axis for the bars.
3173:
1.138 matthew 3174: =item @Values: An array of array references. Each array reference holds data
3175: to be plotted in a stacked bar chart.
3176:
3177: =back
3178:
3179: Returns:
3180:
3181: An <img> tag which references graph.png and the appropriate identifying
3182: information for the plot.
3183:
1.127 matthew 3184: =cut
3185:
3186: ############################################################
3187: ############################################################
1.134 matthew 3188: sub DrawBarGraph {
1.178 matthew 3189: my ($Title,$xlabel,$ylabel,$Max,$colors,$labels,@Values)=@_;
1.134 matthew 3190: #
3191: if (! defined($colors)) {
3192: $colors = ['#33ff00',
3193: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
3194: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
3195: ];
3196: }
1.127 matthew 3197: #
1.136 matthew 3198: my $identifier = &get_cgi_id();
3199: my $id = 'cgi.'.$identifier;
1.129 matthew 3200: if (! @Values || ref($Values[0]) ne 'ARRAY') {
1.127 matthew 3201: return '';
3202: }
1.129 matthew 3203: my $NumBars = scalar(@{$Values[0]});
3204: my %ValuesHash;
3205: my $NumSets=1;
3206: foreach my $array (@Values) {
3207: next if (! ref($array));
1.136 matthew 3208: $ValuesHash{$id.'.data.'.$NumSets++} =
1.132 matthew 3209: join(',',@$array);
1.129 matthew 3210: }
1.127 matthew 3211: #
1.136 matthew 3212: my ($height,$width,$xskip,$bar_width) = (200,120,1,15);
3213: if ($NumBars < 10) {
3214: $width = 120+$NumBars*15;
3215: $xskip = 1;
3216: $bar_width = 15;
3217: } elsif ($NumBars <= 25) {
3218: $width = 120+$NumBars*11;
3219: $xskip = 5;
3220: $bar_width = 8;
3221: } elsif ($NumBars <= 50) {
3222: $width = 120+$NumBars*8;
3223: $xskip = 5;
3224: $bar_width = 4;
3225: } else {
3226: $width = 120+$NumBars*8;
3227: $xskip = 5;
3228: $bar_width = 4;
3229: }
3230: #
3231: my @Labels;
1.178 matthew 3232: if (defined($labels)) {
3233: @Labels = @$labels;
3234: } else {
3235: for (my $i=0;$i<@{$Values[0]};$i++) {
3236: push (@Labels,$i+1);
3237: }
1.136 matthew 3238: }
3239: #
1.137 matthew 3240: $Max = 1 if ($Max < 1);
3241: if ( int($Max) < $Max ) {
3242: $Max++;
3243: $Max = int($Max);
3244: }
1.127 matthew 3245: $Title = '' if (! defined($Title));
3246: $xlabel = '' if (! defined($xlabel));
3247: $ylabel = '' if (! defined($ylabel));
1.136 matthew 3248: $ValuesHash{$id.'.title'} = &Apache::lonnet::escape($Title);
3249: $ValuesHash{$id.'.xlabel'} = &Apache::lonnet::escape($xlabel);
3250: $ValuesHash{$id.'.ylabel'} = &Apache::lonnet::escape($ylabel);
1.137 matthew 3251: $ValuesHash{$id.'.y_max_value'} = $Max;
1.136 matthew 3252: $ValuesHash{$id.'.NumBars'} = $NumBars;
3253: $ValuesHash{$id.'.NumSets'} = $NumSets;
3254: $ValuesHash{$id.'.PlotType'} = 'bar';
3255: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
3256: $ValuesHash{$id.'.height'} = $height;
3257: $ValuesHash{$id.'.width'} = $width;
3258: $ValuesHash{$id.'.xskip'} = $xskip;
3259: $ValuesHash{$id.'.bar_width'} = $bar_width;
3260: $ValuesHash{$id.'.labels'} = join(',',@Labels);
1.127 matthew 3261: #
1.137 matthew 3262: &Apache::lonnet::appenv(%ValuesHash);
3263: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
3264: }
3265:
3266: ############################################################
3267: ############################################################
3268:
3269: =pod
3270:
3271: =item DrawXYGraph
3272:
1.138 matthew 3273: Facilitates the plotting of data in an XY graph.
3274: Puts plot definition data into the users environment in order for
3275: graph.png to plot it. Returns an <img> tag for the plot.
3276:
3277: Inputs:
3278:
3279: =over 4
3280:
3281: =item $Title: string, the title of the plot
3282:
3283: =item $xlabel: string, text describing the X-axis of the plot
3284:
3285: =item $ylabel: string, text describing the Y-axis of the plot
3286:
3287: =item $Max: scalar, the maximum Y value to use in the plot
3288: If $Max is < any data point, the graph will not be rendered.
3289:
3290: =item $colors: Array ref containing the hex color codes for the data to be
3291: plotted in. If undefined, default values will be used.
3292:
3293: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
3294:
3295: =item $Ydata: Array ref containing Array refs.
1.185 www 3296: Each of the contained arrays will be plotted as a separate curve.
1.138 matthew 3297:
3298: =item %Values: hash indicating or overriding any default values which are
3299: passed to graph.png.
3300: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
3301:
3302: =back
3303:
3304: Returns:
3305:
3306: An <img> tag which references graph.png and the appropriate identifying
3307: information for the plot.
3308:
1.137 matthew 3309: =cut
3310:
3311: ############################################################
3312: ############################################################
3313: sub DrawXYGraph {
3314: my ($Title,$xlabel,$ylabel,$Max,$colors,$Xlabels,$Ydata,%Values)=@_;
3315: #
3316: # Create the identifier for the graph
3317: my $identifier = &get_cgi_id();
3318: my $id = 'cgi.'.$identifier;
3319: #
3320: $Title = '' if (! defined($Title));
3321: $xlabel = '' if (! defined($xlabel));
3322: $ylabel = '' if (! defined($ylabel));
3323: my %ValuesHash =
3324: (
3325: $id.'.title' => &Apache::lonnet::escape($Title),
3326: $id.'.xlabel' => &Apache::lonnet::escape($xlabel),
3327: $id.'.ylabel' => &Apache::lonnet::escape($ylabel),
3328: $id.'.y_max_value'=> $Max,
3329: $id.'.labels' => join(',',@$Xlabels),
3330: $id.'.PlotType' => 'XY',
3331: );
3332: #
3333: if (defined($colors) && ref($colors) eq 'ARRAY') {
3334: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
3335: }
3336: #
3337: if (! ref($Ydata) || ref($Ydata) ne 'ARRAY') {
3338: return '';
3339: }
3340: my $NumSets=1;
1.138 matthew 3341: foreach my $array (@{$Ydata}){
1.137 matthew 3342: next if (! ref($array));
3343: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
3344: }
1.138 matthew 3345: $ValuesHash{$id.'.NumSets'} = $NumSets-1;
1.137 matthew 3346: #
3347: # Deal with other parameters
3348: while (my ($key,$value) = each(%Values)) {
3349: $ValuesHash{$id.'.'.$key} = $value;
1.127 matthew 3350: }
3351: #
1.136 matthew 3352: &Apache::lonnet::appenv(%ValuesHash);
3353: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
3354: }
3355:
3356: ############################################################
3357: ############################################################
3358:
3359: =pod
3360:
1.138 matthew 3361: =item DrawXYYGraph
3362:
3363: Facilitates the plotting of data in an XY graph with two Y axes.
3364: Puts plot definition data into the users environment in order for
3365: graph.png to plot it. Returns an <img> tag for the plot.
3366:
3367: Inputs:
3368:
3369: =over 4
3370:
3371: =item $Title: string, the title of the plot
3372:
3373: =item $xlabel: string, text describing the X-axis of the plot
3374:
3375: =item $ylabel: string, text describing the Y-axis of the plot
3376:
3377: =item $colors: Array ref containing the hex color codes for the data to be
3378: plotted in. If undefined, default values will be used.
3379:
3380: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
3381:
3382: =item $Ydata1: The first data set
3383:
3384: =item $Min1: The minimum value of the left Y-axis
3385:
3386: =item $Max1: The maximum value of the left Y-axis
3387:
3388: =item $Ydata2: The second data set
3389:
3390: =item $Min2: The minimum value of the right Y-axis
3391:
3392: =item $Max2: The maximum value of the left Y-axis
3393:
3394: =item %Values: hash indicating or overriding any default values which are
3395: passed to graph.png.
3396: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
3397:
3398: =back
3399:
3400: Returns:
3401:
3402: An <img> tag which references graph.png and the appropriate identifying
3403: information for the plot.
1.136 matthew 3404:
3405: =cut
3406:
3407: ############################################################
3408: ############################################################
1.137 matthew 3409: sub DrawXYYGraph {
3410: my ($Title,$xlabel,$ylabel,$colors,$Xlabels,$Ydata1,$Min1,$Max1,
3411: $Ydata2,$Min2,$Max2,%Values)=@_;
1.136 matthew 3412: #
3413: # Create the identifier for the graph
3414: my $identifier = &get_cgi_id();
3415: my $id = 'cgi.'.$identifier;
3416: #
3417: $Title = '' if (! defined($Title));
3418: $xlabel = '' if (! defined($xlabel));
3419: $ylabel = '' if (! defined($ylabel));
3420: my %ValuesHash =
3421: (
3422: $id.'.title' => &Apache::lonnet::escape($Title),
3423: $id.'.xlabel' => &Apache::lonnet::escape($xlabel),
3424: $id.'.ylabel' => &Apache::lonnet::escape($ylabel),
3425: $id.'.labels' => join(',',@$Xlabels),
3426: $id.'.PlotType' => 'XY',
3427: $id.'.NumSets' => 2,
1.137 matthew 3428: $id.'.two_axes' => 1,
3429: $id.'.y1_max_value' => $Max1,
3430: $id.'.y1_min_value' => $Min1,
3431: $id.'.y2_max_value' => $Max2,
3432: $id.'.y2_min_value' => $Min2,
1.136 matthew 3433: );
3434: #
1.137 matthew 3435: if (defined($colors) && ref($colors) eq 'ARRAY') {
3436: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
3437: }
3438: #
3439: if (! ref($Ydata1) || ref($Ydata1) ne 'ARRAY' ||
3440: ! ref($Ydata2) || ref($Ydata2) ne 'ARRAY'){
1.136 matthew 3441: return '';
3442: }
3443: my $NumSets=1;
1.137 matthew 3444: foreach my $array ($Ydata1,$Ydata2){
1.136 matthew 3445: next if (! ref($array));
3446: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
1.137 matthew 3447: }
3448: #
3449: # Deal with other parameters
3450: while (my ($key,$value) = each(%Values)) {
3451: $ValuesHash{$id.'.'.$key} = $value;
1.136 matthew 3452: }
3453: #
3454: &Apache::lonnet::appenv(%ValuesHash);
1.130 albertel 3455: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
1.139 matthew 3456: }
3457:
3458: ############################################################
3459: ############################################################
3460:
3461: =pod
3462:
1.157 matthew 3463: =back
3464:
1.139 matthew 3465: =head1 Statistics helper routines?
3466:
3467: Bad place for them but what the hell.
3468:
1.157 matthew 3469: =over 4
3470:
1.139 matthew 3471: =item &chartlink
3472:
3473: Returns a link to the chart for a specific student.
3474:
3475: Inputs:
3476:
3477: =over 4
3478:
3479: =item $linktext: The text of the link
3480:
3481: =item $sname: The students username
3482:
3483: =item $sdomain: The students domain
3484:
3485: =back
3486:
1.157 matthew 3487: =back
3488:
1.139 matthew 3489: =cut
3490:
3491: ############################################################
3492: ############################################################
3493: sub chartlink {
3494: my ($linktext, $sname, $sdomain) = @_;
3495: my $link = '<a href="/adm/statistics?reportSelected=student_assessment'.
3496: '&SelectedStudent='.&Apache::lonnet::escape($sname.':'.$sdomain).
3497: '&chartoutputmode='.HTML::Entities::encode('html, with all links').
3498: '">'.$linktext.'</a>';
1.153 matthew 3499: }
3500:
3501: #######################################################
3502: #######################################################
3503:
3504: =pod
3505:
3506: =head1 Course Environment Routines
1.157 matthew 3507:
3508: =over 4
1.153 matthew 3509:
3510: =item &restore_course_settings
3511:
3512: =item &store_course_settings
3513:
3514: Restores/Store indicated form parameters from the course environment.
3515: Will not overwrite existing values of the form parameters.
3516:
3517: Inputs:
3518: a scalar describing the data (e.g. 'chart', 'problem_analysis')
3519:
3520: a hash ref describing the data to be stored. For example:
3521:
3522: %Save_Parameters = ('Status' => 'scalar',
3523: 'chartoutputmode' => 'scalar',
3524: 'chartoutputdata' => 'scalar',
3525: 'Section' => 'array',
3526: 'StudentData' => 'array',
3527: 'Maps' => 'array');
3528:
3529: Returns: both routines return nothing
3530:
3531: =cut
3532:
3533: #######################################################
3534: #######################################################
3535: sub store_course_settings {
3536: # save to the environment
3537: # appenv the same items, just to be safe
3538: my $courseid = $ENV{'request.course.id'};
3539: my $coursedom = $ENV{'course.'.$courseid.'.domain'};
3540: my ($prefix,$Settings) = @_;
3541: my %SaveHash;
3542: my %AppHash;
3543: while (my ($setting,$type) = each(%$Settings)) {
1.176 albertel 3544: my $basename = 'internal.'.$prefix.'.'.$setting;
1.153 matthew 3545: my $envname = 'course.'.$courseid.'.'.$basename;
3546: if (exists($ENV{'form.'.$setting})) {
3547: # Save this value away
3548: if ($type eq 'scalar' &&
3549: (! exists($ENV{$envname}) ||
3550: $ENV{$envname} ne $ENV{'form.'.$setting})) {
3551: $SaveHash{$basename} = $ENV{'form.'.$setting};
3552: $AppHash{$envname} = $ENV{'form.'.$setting};
3553: } elsif ($type eq 'array') {
3554: my $stored_form;
3555: if (ref($ENV{'form.'.$setting})) {
3556: $stored_form = join(',',
3557: map {
3558: &Apache::lonnet::escape($_);
3559: } sort(@{$ENV{'form.'.$setting}}));
3560: } else {
3561: $stored_form =
3562: &Apache::lonnet::escape($ENV{'form.'.$setting});
3563: }
3564: # Determine if the array contents are the same.
3565: if ($stored_form ne $ENV{$envname}) {
3566: $SaveHash{$basename} = $stored_form;
3567: $AppHash{$envname} = $stored_form;
3568: }
3569: }
3570: }
3571: }
3572: my $put_result = &Apache::lonnet::put('environment',\%SaveHash,
3573: $coursedom,
3574: $ENV{'course.'.$courseid.'.num'});
3575: if ($put_result !~ /^(ok|delayed)/) {
3576: &Apache::lonnet::logthis('unable to save form parameters, '.
3577: 'got error:'.$put_result);
3578: }
3579: # Make sure these settings stick around in this session, too
3580: &Apache::lonnet::appenv(%AppHash);
3581: return;
3582: }
3583:
3584: sub restore_course_settings {
3585: my $courseid = $ENV{'request.course.id'};
3586: my ($prefix,$Settings) = @_;
3587: while (my ($setting,$type) = each(%$Settings)) {
3588: next if (exists($ENV{'form.'.$setting}));
1.176 albertel 3589: my $envname = 'course.'.$courseid.'.internal.'.$prefix.
1.153 matthew 3590: '.'.$setting;
3591: if (exists($ENV{$envname})) {
3592: if ($type eq 'scalar') {
3593: $ENV{'form.'.$setting} = $ENV{$envname};
3594: } elsif ($type eq 'array') {
3595: $ENV{'form.'.$setting} = [
3596: map {
3597: &Apache::lonnet::unescape($_);
3598: } split(',',$ENV{$envname})
3599: ];
3600: }
3601: }
3602: }
1.127 matthew 3603: }
3604:
3605: ############################################################
3606: ############################################################
1.154 albertel 3607:
3608: sub propath {
3609: my ($udom,$uname)=@_;
3610: $udom=~s/\W//g;
3611: $uname=~s/\W//g;
3612: my $subdir=$uname.'__';
3613: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
3614: my $proname="$Apache::lonnet::perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
3615: return $proname;
1.156 albertel 3616: }
3617:
3618: sub icon {
3619: my ($file)=@_;
1.168 albertel 3620: my $curfext = (split(/\./,$file))[-1];
3621: my $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/unknown.gif';
1.156 albertel 3622: my $embstyle = &Apache::loncommon::fileembstyle($curfext);
1.168 albertel 3623: if (!(!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn')) {
3624: if (-e $Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
3625: $Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
3626: $curfext.".gif") {
3627: $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
3628: $curfext.".gif";
3629: }
3630: }
3631: return $iconname;
1.154 albertel 3632: }
1.84 albertel 3633:
1.41 ng 3634: =pod
3635:
3636: =back
3637:
1.112 bowersj2 3638: =cut
1.41 ng 3639:
1.112 bowersj2 3640: 1;
3641: __END__;
1.41 ng 3642:
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