Annotation of loncom/interface/loncommon.pm, revision 1.274
1.10 albertel 1: # The LearningOnline Network with CAPA
1.1 albertel 2: # a pile of common routines
1.10 albertel 3: #
1.274 ! raeburn 4: # $Id: loncommon.pm,v 1.273 2005/09/14 21:25:52 raeburn Exp $
1.10 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.1 albertel 28:
29: # Makes a table out of the previous attempts
1.2 albertel 30: # Inputs result_from_symbread, user, domain, course_id
1.16 harris41 31: # Reads in non-network-related .tab files
1.1 albertel 32:
1.35 matthew 33: # POD header:
34:
1.45 matthew 35: =pod
36:
1.35 matthew 37: =head1 NAME
38:
39: Apache::loncommon - pile of common routines
40:
41: =head1 SYNOPSIS
42:
1.112 bowersj2 43: Common routines for manipulating connections, student answers,
44: domains, common Javascript fragments, etc.
1.35 matthew 45:
1.112 bowersj2 46: =head1 OVERVIEW
1.35 matthew 47:
1.112 bowersj2 48: A collection of commonly used subroutines that don't have a natural
49: home anywhere else. This collection helps remove
1.35 matthew 50: redundancy from other modules and increase efficiency of memory usage.
51:
52: =cut
53:
54: # End of POD header
1.1 albertel 55: package Apache::loncommon;
56:
57: use strict;
1.258 albertel 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);
1.82 www 62: use Apache::lonmenu();
1.117 www 63: use Apache::lonlocal;
1.139 matthew 64: use HTML::Entities;
1.117 www 65:
1.22 www 66: my $readit;
67:
1.157 matthew 68: ##
69: ## Global Variables
70: ##
1.46 matthew 71:
1.20 www 72: # ----------------------------------------------- Filetypes/Languages/Copyright
1.12 harris41 73: my %language;
1.124 www 74: my %supported_language;
1.12 harris41 75: my %cprtag;
1.192 taceyjo1 76: my %scprtag;
1.12 harris41 77: my %fe; my %fd;
1.41 ng 78: my %category_extensions;
1.12 harris41 79:
1.63 www 80: # ---------------------------------------------- Designs
81:
82: my %designhash;
83:
1.46 matthew 84: # ---------------------------------------------- Thesaurus variables
1.144 matthew 85: #
86: # %Keywords:
87: # A hash used by &keyword to determine if a word is considered a keyword.
88: # $thesaurus_db_file
89: # Scalar containing the full path to the thesaurus database.
1.46 matthew 90:
91: my %Keywords;
92: my $thesaurus_db_file;
93:
1.144 matthew 94: #
95: # Initialize values from language.tab, copyright.tab, filetypes.tab,
96: # thesaurus.tab, and filecategories.tab.
97: #
1.18 www 98: BEGIN {
1.46 matthew 99: # Variable initialization
100: $thesaurus_db_file = $Apache::lonnet::perlvar{'lonTabDir'}."/thesaurus.db";
101: #
1.22 www 102: unless ($readit) {
1.12 harris41 103: # ------------------------------------------------------------------- languages
104: {
1.158 raeburn 105: my $langtabfile = $Apache::lonnet::perlvar{'lonTabDir'}.
106: '/language.tab';
107: if ( open(my $fh,"<$langtabfile") ) {
108: while (<$fh>) {
109: next if /^\#/;
110: chomp;
111: my ($key,$two,$country,$three,$enc,$val,$sup)=(split(/\t/,$_));
112: $language{$key}=$val.' - '.$enc;
113: if ($sup) {
114: $supported_language{$key}=$sup;
115: }
116: }
117: close($fh);
118: }
1.12 harris41 119: }
120: # ------------------------------------------------------------------ copyrights
121: {
1.158 raeburn 122: my $copyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
123: '/copyright.tab';
124: if ( open (my $fh,"<$copyrightfile") ) {
125: while (<$fh>) {
126: next if /^\#/;
127: chomp;
128: my ($key,$val)=(split(/\s+/,$_,2));
129: $cprtag{$key}=$val;
130: }
131: close($fh);
132: }
1.12 harris41 133: }
1.192 taceyjo1 134: # ------------------------------------------------------------------ source copyrights
135: {
136: my $sourcecopyrightfile = $Apache::lonnet::perlvar{'lonIncludes'}.
137: '/source_copyright.tab';
138: if ( open (my $fh,"<$sourcecopyrightfile") ) {
139: while (<$fh>) {
140: next if /^\#/;
141: chomp;
142: my ($key,$val)=(split(/\s+/,$_,2));
143: $scprtag{$key}=$val;
144: }
145: close($fh);
146: }
147: }
1.63 www 148:
149: # -------------------------------------------------------------- domain designs
150:
151: my $filename;
152: my $designdir=$Apache::lonnet::perlvar{'lonTabDir'}.'/lonDomColors';
153: opendir(DIR,$designdir);
154: while ($filename=readdir(DIR)) {
1.271 albertel 155: if ($filename!~/\.tab$/) { next; }
1.63 www 156: my ($domain)=($filename=~/^(\w+)\./);
1.271 albertel 157: {
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: }
168: }
1.63 www 169:
170: }
171: closedir(DIR);
172:
173:
1.15 harris41 174: # ------------------------------------------------------------- file categories
175: {
1.158 raeburn 176: my $categoryfile = $Apache::lonnet::perlvar{'lonTabDir'}.
177: '/filecategories.tab';
178: if ( open (my $fh,"<$categoryfile") ) {
179: while (<$fh>) {
180: next if /^\#/;
181: chomp;
182: my ($extension,$category)=(split(/\s+/,$_,2));
183: push @{$category_extensions{lc($category)}},$extension;
184: }
185: close($fh);
186: }
187:
1.15 harris41 188: }
1.12 harris41 189: # ------------------------------------------------------------------ file types
190: {
1.158 raeburn 191: my $typesfile = $Apache::lonnet::perlvar{'lonTabDir'}.
192: '/filetypes.tab';
193: if ( open (my $fh,"<$typesfile") ) {
1.16 harris41 194: while (<$fh>) {
1.158 raeburn 195: next if (/^\#/);
196: chomp;
197: my ($ending,$emb,$descr)=split(/\s+/,$_,3);
198: if ($descr ne '') {
199: $fe{$ending}=lc($emb);
200: $fd{$ending}=$descr;
201: }
202: }
203: close($fh);
204: }
1.12 harris41 205: }
1.22 www 206: &Apache::lonnet::logthis(
1.46 matthew 207: "<font color=yellow>INFO: Read file types</font>");
1.22 www 208: $readit=1;
1.46 matthew 209: } # end of unless($readit)
1.32 matthew 210:
211: }
1.112 bowersj2 212:
1.42 matthew 213: ###############################################################
214: ## HTML and Javascript Helper Functions ##
215: ###############################################################
216:
217: =pod
218:
1.112 bowersj2 219: =head1 HTML and Javascript Functions
1.42 matthew 220:
1.112 bowersj2 221: =over 4
222:
223: =item * browser_and_searcher_javascript ()
224:
225: X<browsing, javascript>X<searching, javascript>Returns a string
226: containing javascript with two functions, C<openbrowser> and
227: C<opensearcher>. Returned string does not contain E<lt>scriptE<gt>
228: tags.
1.42 matthew 229:
1.112 bowersj2 230: =item * openbrowser(formname,elementname,only,omit) [javascript]
1.42 matthew 231:
232: inputs: formname, elementname, only, omit
233:
234: formname and elementname indicate the name of the html form and name of
235: the element that the results of the browsing selection are to be placed in.
236:
237: Specifying 'only' will restrict the browser to displaying only files
1.185 www 238: with the given extension. Can be a comma separated list.
1.42 matthew 239:
240: Specifying 'omit' will restrict the browser to NOT displaying files
1.185 www 241: with the given extension. Can be a comma separated list.
1.42 matthew 242:
1.112 bowersj2 243: =item * opensearcher(formname, elementname) [javascript]
1.42 matthew 244:
245: Inputs: formname, elementname
246:
247: formname and elementname specify the name of the html form and the name
248: of the element the selection from the search results will be placed in.
249:
250: =cut
251:
252: sub browser_and_searcher_javascript {
1.199 albertel 253: my ($mode)=@_;
254: if (!defined($mode)) { $mode='edit'; }
1.170 www 255: my $resurl=&lastresurl();
1.42 matthew 256: return <<END;
1.219 albertel 257: // <!-- BEGIN LON-CAPA Internal
1.50 matthew 258: var editbrowser = null;
1.135 albertel 259: function openbrowser(formname,elementname,only,omit,titleelement) {
1.170 www 260: var url = '$resurl/?';
1.42 matthew 261: if (editbrowser == null) {
262: url += 'launch=1&';
263: }
264: url += 'catalogmode=interactive&';
1.199 albertel 265: url += 'mode=$mode&';
1.42 matthew 266: url += 'form=' + formname + '&';
267: if (only != null) {
268: url += 'only=' + only + '&';
1.217 albertel 269: } else {
270: url += 'only=&';
271: }
1.42 matthew 272: if (omit != null) {
273: url += 'omit=' + omit + '&';
1.217 albertel 274: } else {
275: url += 'omit=&';
276: }
1.135 albertel 277: if (titleelement != null) {
278: url += 'titleelement=' + titleelement + '&';
1.217 albertel 279: } else {
280: url += 'titleelement=&';
281: }
1.42 matthew 282: url += 'element=' + elementname + '';
283: var title = 'Browser';
1.217 albertel 284: var options = 'scrollbars=1,resizable=1,menubar=1,location=1';
1.42 matthew 285: options += ',width=700,height=600';
286: editbrowser = open(url,title,options,'1');
287: editbrowser.focus();
288: }
289: var editsearcher;
1.135 albertel 290: function opensearcher(formname,elementname,titleelement) {
1.42 matthew 291: var url = '/adm/searchcat?';
292: if (editsearcher == null) {
293: url += 'launch=1&';
294: }
295: url += 'catalogmode=interactive&';
1.199 albertel 296: url += 'mode=$mode&';
1.42 matthew 297: url += 'form=' + formname + '&';
1.135 albertel 298: if (titleelement != null) {
299: url += 'titleelement=' + titleelement + '&';
1.217 albertel 300: } else {
301: url += 'titleelement=&';
302: }
1.42 matthew 303: url += 'element=' + elementname + '';
304: var title = 'Search';
305: var options = 'scrollbars=1,resizable=1,menubar=0';
306: options += ',width=700,height=600';
307: editsearcher = open(url,title,options,'1');
308: editsearcher.focus();
309: }
1.219 albertel 310: // END LON-CAPA Internal -->
1.42 matthew 311: END
1.170 www 312: }
313:
314: sub lastresurl {
1.258 albertel 315: if ($env{'environment.lastresurl'}) {
316: return $env{'environment.lastresurl'}
1.170 www 317: } else {
318: return '/res';
319: }
320: }
321:
322: sub storeresurl {
323: my $resurl=&Apache::lonnet::clutter(shift);
324: unless ($resurl=~/^\/res/) { return 0; }
325: $resurl=~s/\/$//;
326: &Apache::lonnet::put('environment',{'lastresurl' => $resurl});
327: &Apache::lonnet::appenv('environment.lastresurl' => $resurl);
328: return 1;
1.42 matthew 329: }
330:
1.74 www 331: sub studentbrowser_javascript {
1.111 www 332: unless (
1.258 albertel 333: (($env{'request.course.id'}) &&
334: (&Apache::lonnet::allowed('srm',$env{'request.course.id'})))
335: || ($env{'request.role'}=~/^(au|dc|su)/)
1.111 www 336: ) { return ''; }
1.74 www 337: return (<<'ENDSTDBRW');
338: <script type="text/javascript" language="Javascript" >
339: var stdeditbrowser;
1.111 www 340: function openstdbrowser(formname,uname,udom,roleflag) {
1.74 www 341: var url = '/adm/pickstudent?';
342: var filter;
343: eval('filter=document.'+formname+'.'+uname+'.value;');
344: if (filter != null) {
345: if (filter != '') {
346: url += 'filter='+filter+'&';
347: }
348: }
349: url += 'form=' + formname + '&unameelement='+uname+
350: '&udomelement='+udom;
1.111 www 351: if (roleflag) { url+="&roles=1"; }
1.102 www 352: var title = 'Student_Browser';
1.74 www 353: var options = 'scrollbars=1,resizable=1,menubar=0';
354: options += ',width=700,height=600';
355: stdeditbrowser = open(url,title,options,'1');
356: stdeditbrowser.focus();
357: }
358: </script>
359: ENDSTDBRW
360: }
1.42 matthew 361:
1.74 www 362: sub selectstudent_link {
1.111 www 363: my ($form,$unameele,$udomele)=@_;
1.258 albertel 364: if ($env{'request.course.id'}) {
365: unless (&Apache::lonnet::allowed('srm',$env{'request.course.id'})) {
1.111 www 366: return '';
367: }
368: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
1.119 www 369: '","'.$udomele.'");'."'>".&mt('Select User')."</a>";
1.74 www 370: }
1.258 albertel 371: if ($env{'request.role'}=~/^(au|dc|su)/) {
1.111 www 372: return "<a href='".'javascript:openstdbrowser("'.$form.'","'.$unameele.
1.119 www 373: '","'.$udomele.'",1);'."'>".&mt('Select User')."</a>";
1.111 www 374: }
375: return '';
1.91 www 376: }
377:
378: sub coursebrowser_javascript {
1.234 raeburn 379: my ($domainfilter)=@_;
1.128 albertel 380: return (<<ENDSTDBRW);
1.91 www 381: <script type="text/javascript" language="Javascript" >
382: var stdeditbrowser;
1.234 raeburn 383: function opencrsbrowser(formname,uname,udom,desc,extra_element) {
1.91 www 384: var url = '/adm/pickcourse?';
385: var filter;
386: if (filter != null) {
387: if (filter != '') {
388: url += 'filter='+filter+'&';
389: }
390: }
1.128 albertel 391: var domainfilter='$domainfilter';
392: if (domainfilter != null) {
393: if (domainfilter != '') {
394: url += 'domainfilter='+domainfilter+'&';
395: }
396: }
1.91 www 397: url += 'form=' + formname + '&cnumelement='+uname+
1.187 albertel 398: '&cdomelement='+udom+
399: '&cnameelement='+desc;
1.234 raeburn 400: if (extra_element !=null && extra_element != '' && formname == 'rolechoice') {
401: url += '&roleelement='+extra_element;
402: if (domainfilter == null || domainfilter == '') {
403: url += '&domainfilter='+extra_element;
404: }
1.230 raeburn 405: }
1.102 www 406: var title = 'Course_Browser';
1.91 www 407: var options = 'scrollbars=1,resizable=1,menubar=0';
408: options += ',width=700,height=600';
409: stdeditbrowser = open(url,title,options,'1');
410: stdeditbrowser.focus();
411: }
412: </script>
413: ENDSTDBRW
414: }
415:
416: sub selectcourse_link {
1.234 raeburn 417: my ($form,$unameele,$udomele,$desc,$extra_element)=@_;
1.91 www 418: return "<a href='".'javascript:opencrsbrowser("'.$form.'","'.$unameele.
1.234 raeburn 419: '","'.$udomele.'","'.$desc.'","'.$extra_element.'");'."'>".&mt('Select Course')."</a>";
1.74 www 420: }
1.42 matthew 421:
1.273 raeburn 422: sub check_uncheck_jscript {
423: my $jscript = <<"ENDSCRT";
424: function checkAll(field) {
425: if (field.length > 0) {
426: for (i = 0; i < field.length; i++) {
427: field[i].checked = true ;
428: }
429: } else {
430: field.checked = true
431: }
432: }
433:
434: function uncheckAll(field) {
435: if (field.length > 0) {
436: for (i = 0; i < field.length; i++) {
437: field[i].checked = false ;
438: } } else {
439: field.checked = false ;
440: }
441: }
442: ENDSCRT
443: return $jscript;
444: }
445:
446:
1.42 matthew 447: =pod
1.36 matthew 448:
1.112 bowersj2 449: =item * linked_select_forms(...)
1.36 matthew 450:
451: linked_select_forms returns a string containing a <script></script> block
452: and html for two <select> menus. The select menus will be linked in that
453: changing the value of the first menu will result in new values being placed
454: in the second menu. The values in the select menu will appear in alphabetical
455: order.
456:
457: linked_select_forms takes the following ordered inputs:
458:
459: =over 4
460:
1.112 bowersj2 461: =item * $formname, the name of the <form> tag
1.36 matthew 462:
1.112 bowersj2 463: =item * $middletext, the text which appears between the <select> tags
1.36 matthew 464:
1.112 bowersj2 465: =item * $firstdefault, the default value for the first menu
1.36 matthew 466:
1.112 bowersj2 467: =item * $firstselectname, the name of the first <select> tag
1.36 matthew 468:
1.112 bowersj2 469: =item * $secondselectname, the name of the second <select> tag
1.36 matthew 470:
1.112 bowersj2 471: =item * $hashref, a reference to a hash containing the data for the menus.
1.36 matthew 472:
1.41 ng 473: =back
474:
1.36 matthew 475: Below is an example of such a hash. Only the 'text', 'default', and
476: 'select2' keys must appear as stated. keys(%menu) are the possible
477: values for the first select menu. The text that coincides with the
1.41 ng 478: first menu value is given in $menu{$choice1}->{'text'}. The values
1.36 matthew 479: and text for the second menu are given in the hash pointed to by
480: $menu{$choice1}->{'select2'}.
481:
1.112 bowersj2 482: my %menu = ( A1 => { text =>"Choice A1" ,
483: default => "B3",
484: select2 => {
485: B1 => "Choice B1",
486: B2 => "Choice B2",
487: B3 => "Choice B3",
488: B4 => "Choice B4"
489: }
490: },
491: A2 => { text =>"Choice A2" ,
492: default => "C2",
493: select2 => {
494: C1 => "Choice C1",
495: C2 => "Choice C2",
496: C3 => "Choice C3"
497: }
498: },
499: A3 => { text =>"Choice A3" ,
500: default => "D6",
501: select2 => {
502: D1 => "Choice D1",
503: D2 => "Choice D2",
504: D3 => "Choice D3",
505: D4 => "Choice D4",
506: D5 => "Choice D5",
507: D6 => "Choice D6",
508: D7 => "Choice D7"
509: }
510: }
511: );
1.36 matthew 512:
513: =cut
514:
515: sub linked_select_forms {
516: my ($formname,
517: $middletext,
518: $firstdefault,
519: $firstselectname,
520: $secondselectname,
521: $hashref
522: ) = @_;
523: my $second = "document.$formname.$secondselectname";
524: my $first = "document.$formname.$firstselectname";
525: # output the javascript to do the changing
526: my $result = '';
1.219 albertel 527: $result.="<script type=\"text/javascript\">\n";
1.36 matthew 528: $result.="var select2data = new Object();\n";
529: $" = '","';
530: my $debug = '';
531: foreach my $s1 (sort(keys(%$hashref))) {
532: $result.="select2data.d_$s1 = new Object();\n";
533: $result.="select2data.d_$s1.def = new String('".
534: $hashref->{$s1}->{'default'}."');\n";
535: $result.="select2data.d_$s1.values = new Array(";
536: my @s2values = sort(keys( %{ $hashref->{$s1}->{'select2'} } ));
537: $result.="\"@s2values\");\n";
538: $result.="select2data.d_$s1.texts = new Array(";
539: my @s2texts;
540: foreach my $value (@s2values) {
541: push @s2texts, $hashref->{$s1}->{'select2'}->{$value};
542: }
543: $result.="\"@s2texts\");\n";
544: }
545: $"=' ';
546: $result.= <<"END";
547:
548: function select1_changed() {
549: // Determine new choice
550: var newvalue = "d_" + $first.value;
551: // update select2
552: var values = select2data[newvalue].values;
553: var texts = select2data[newvalue].texts;
554: var select2def = select2data[newvalue].def;
555: var i;
556: // out with the old
557: for (i = 0; i < $second.options.length; i++) {
558: $second.options[i] = null;
559: }
560: // in with the nuclear
561: for (i=0;i<values.length; i++) {
562: $second.options[i] = new Option(values[i]);
1.143 matthew 563: $second.options[i].value = values[i];
1.36 matthew 564: $second.options[i].text = texts[i];
565: if (values[i] == select2def) {
566: $second.options[i].selected = true;
567: }
568: }
569: }
570: </script>
571: END
572: # output the initial values for the selection lists
573: $result .= "<select size=\"1\" name=\"$firstselectname\" onchange=\"select1_changed()\">\n";
574: foreach my $value (sort(keys(%$hashref))) {
575: $result.=" <option value=\"$value\" ";
1.253 albertel 576: $result.=" selected=\"selected\" " if ($value eq $firstdefault);
1.119 www 577: $result.=">".&mt($hashref->{$value}->{'text'})."</option>\n";
1.36 matthew 578: }
579: $result .= "</select>\n";
580: my %select2 = %{$hashref->{$firstdefault}->{'select2'}};
581: $result .= $middletext;
582: $result .= "<select size=\"1\" name=\"$secondselectname\">\n";
583: my $seconddefault = $hashref->{$firstdefault}->{'default'};
584: foreach my $value (sort(keys(%select2))) {
585: $result.=" <option value=\"$value\" ";
1.253 albertel 586: $result.=" selected=\"selected\" " if ($value eq $seconddefault);
1.119 www 587: $result.=">".&mt($select2{$value})."</option>\n";
1.36 matthew 588: }
589: $result .= "</select>\n";
590: # return $debug;
591: return $result;
592: } # end of sub linked_select_forms {
593:
1.45 matthew 594: =pod
1.44 bowersj2 595:
1.112 bowersj2 596: =item * help_open_topic($topic, $text, $stayOnPage, $width, $height)
1.44 bowersj2 597:
1.112 bowersj2 598: Returns a string corresponding to an HTML link to the given help
599: $topic, where $topic corresponds to the name of a .tex file in
600: /home/httpd/html/adm/help/tex, with underscores replaced by
601: spaces.
602:
603: $text will optionally be linked to the same topic, allowing you to
604: link text in addition to the graphic. If you do not want to link
605: text, but wish to specify one of the later parameters, pass an
606: empty string.
607:
608: $stayOnPage is a value that will be interpreted as a boolean. If true,
609: the link will not open a new window. If false, the link will open
610: a new window using Javascript. (Default is false.)
611:
612: $width and $height are optional numerical parameters that will
613: override the width and height of the popped up window, which may
614: be useful for certain help topics with big pictures included.
1.44 bowersj2 615:
616: =cut
617:
618: sub help_open_topic {
1.48 bowersj2 619: my ($topic, $text, $stayOnPage, $width, $height) = @_;
620: $text = "" if (not defined $text);
1.44 bowersj2 621: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 622: if ($env{'browser.interface'} eq 'textual' ||
623: $env{'environment.remote'} eq 'off' ) {
1.79 www 624: $stayOnPage=1;
625: }
1.44 bowersj2 626: $width = 350 if (not defined $width);
627: $height = 400 if (not defined $height);
628: my $filename = $topic;
629: $filename =~ s/ /_/g;
630:
1.48 bowersj2 631: my $template = "";
632: my $link;
1.159 www 633:
634: $topic=~s/\W/\_/g;
1.44 bowersj2 635:
636: if (!$stayOnPage)
637: {
1.72 bowersj2 638: $link = "javascript:void(open('/adm/help/${filename}.hlp', 'Help_for_$topic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
1.44 bowersj2 639: }
640: else
641: {
1.48 bowersj2 642: $link = "/adm/help/${filename}.hlp";
643: }
644:
645: # Add the text
646: if ($text ne "")
647: {
1.77 www 648: $template .=
649: "<table bgcolor='#3333AA' cellspacing='1' cellpadding='1' border='0'><tr>".
1.78 www 650: "<td bgcolor='#5555FF'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.48 bowersj2 651: }
652:
653: # Add the graphic
1.179 matthew 654: my $title = &mt('Online Help');
1.215 albertel 655: my $helpicon=&lonhttpdurl("/adm/help/gif/smallHelp.gif");
1.48 bowersj2 656: $template .= <<"ENDTEMPLATE";
1.218 albertel 657: <a href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help: $topic)" /></a>
1.44 bowersj2 658: ENDTEMPLATE
1.78 www 659: if ($text ne '') { $template.='</td></tr></table>' };
1.44 bowersj2 660: return $template;
661:
1.106 bowersj2 662: }
663:
664: # This is a quicky function for Latex cheatsheet editing, since it
665: # appears in at least four places
666: sub helpLatexCheatsheet {
667: my $other = shift;
668: my $addOther = '';
669: if ($other) {
670: $addOther = Apache::loncommon::help_open_topic($other, shift,
671: undef, undef, 600) .
672: '</td><td>';
673: }
674: return '<table><tr><td>'.
675: $addOther .
676: &Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols',
677: undef,undef,600)
678: .'</td><td>'.
679: &Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols',
680: undef,undef,600)
681: .'</td></tr></table>';
1.172 www 682: }
683:
1.193 raeburn 684: sub help_open_menu {
685: my ($color,$topic,$component_help,$function,$faq,$bug,$stayOnPage,$width,$height,$text) = @_;
686: $text = "" if (not defined $text);
687: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 688: if ($env{'browser.interface'} eq 'textual' ||
689: $env{'environment.remote'} eq 'off' ) {
1.193 raeburn 690: $stayOnPage=1;
691: }
692: $width = 620 if (not defined $width);
693: $height = 600 if (not defined $height);
694: my $link='';
1.201 raeburn 695: my $title = &mt('Get help');
1.193 raeburn 696: my $origurl = $ENV{'REQUEST_URI'};
1.227 albertel 697: $origurl=~s|^/~|/priv/|;
1.193 raeburn 698: my $timestamp = time;
699: foreach (\$color,\$function,\$topic,\$component_help,\$faq,\$bug,\$origurl) {
700: $$_ = &Apache::lonnet::escape($$_);
701: }
1.195 albertel 702: if (!$stayOnPage) {
1.193 raeburn 703: $link = "javascript:helpMenu('open')";
1.195 albertel 704: } else {
1.193 raeburn 705: $link = "javascript:helpMenu('display')";
706: }
1.198 raeburn 707: my $banner_link = "/adm/helpmenu?page=banner&color=$color&function=$function&topic=$topic&component_help=$component_help&faq=$faq&bug=$bug&origurl=$origurl&stamp=$timestamp&stayonpage=$stayOnPage";
1.193 raeburn 708: 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 709: my $template;
710: if ($text ne "") {
711: $template .=
1.265 albertel 712: "<table bgcolor='#CC3300' cellspacing='1' cellpadding='1' border='0'><tr>".
713: "<td bgcolor='#CC6600'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.196 albertel 714: }
1.261 albertel 715: my $nothing=&Apache::lonhtmlcommon::javascript_nothing();
1.250 albertel 716: my $html=&Apache::lonxml::xmlbegin();
1.215 albertel 717: my $helpicon=&lonhttpdurl("/adm/lonIcons/helpgateway.gif");
1.196 albertel 718: $template .= <<"ENDTEMPLATE";
1.219 albertel 719: <script type="text/javascript">
1.253 albertel 720: // <!-- BEGIN LON-CAPA Internal
721: // <![CDATA[
1.243 raeburn 722: function helpMenu(target) {
723: var caller = this;
724: if (target == 'open') {
725: var newWindow = null;
726: try {
1.262 albertel 727: newWindow = window.open($nothing,"helpmenu","HEIGHT=$height,WIDTH=$width,resizable=yes,scrollbars=yes" )
1.243 raeburn 728: }
729: catch(error) {
730: writeHelp(caller);
731: return;
732: }
733: if (newWindow) {
734: caller = newWindow;
735: }
1.193 raeburn 736: }
1.243 raeburn 737: writeHelp(caller);
738: return;
739: }
740: function writeHelp(caller) {
1.264 www 741: caller.document.writeln('$html<head><title>LON-CAPA Help Menu</title><meta http-equiv="pragma" content="no-cache"></head>')
742: caller.document.writeln("<frameset rows='105,*' border='0'><frame name='bannerframe' src='$banner_link'><frame name='bodyframe' src='$details_link'></frameset>")
743: caller.document.writeln("</html>")
1.243 raeburn 744: caller.document.close()
745: caller.focus()
1.193 raeburn 746: }
1.253 albertel 747: // ]]>
1.219 albertel 748: // END LON-CAPA Internal -->
1.193 raeburn 749: </script>
1.218 albertel 750: <a href="$link" title="$title"><img src="$helpicon" border="0" alt="(Help Menu)" /></a>
1.193 raeburn 751: ENDTEMPLATE
1.203 albertel 752: if ($component_help) {
753: if (!$text) {
754: $template=&help_open_topic($component_help,undef,$stayOnPage,
755: $width,$height).' '.$template;
756: } else {
757: my $help_text;
758: $help_text=&Apache::lonnet::unescape($topic);
759: $template='<table><tr><td>'.
760: &help_open_topic($component_help,$help_text,$stayOnPage,
761: $width,$height).'</td><td>'.$template.
762: '</td></tr></table>';
763: }
764: }
1.196 albertel 765: if ($text ne '') { $template.='</td></tr></table>' };
1.193 raeburn 766: return $template;
767: }
768:
1.172 www 769: sub help_open_bug {
770: my ($topic, $text, $stayOnPage, $width, $height) = @_;
1.258 albertel 771: unless ($env{'user.adv'}) { return ''; }
1.172 www 772: unless ($Apache::lonnet::perlvar{'BugzillaHost'}) { return ''; }
773: $text = "" if (not defined $text);
774: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 775: if ($env{'browser.interface'} eq 'textual' ||
776: $env{'environment.remote'} eq 'off' ) {
1.172 www 777: $stayOnPage=1;
778: }
1.184 albertel 779: $width = 600 if (not defined $width);
780: $height = 600 if (not defined $height);
1.172 www 781:
782: $topic=~s/\W+/\+/g;
783: my $link='';
784: my $template='';
785: my $url=$Apache::lonnet::perlvar{'BugzillaHost'}.'enter_bug.cgi?product=LON-CAPA&bug_file_loc='.
786: &Apache::lonnet::escape($ENV{'REQUEST_URI'}).'&component='.$topic;
787: if (!$stayOnPage)
788: {
789: $link = "javascript:void(open('$url', 'Bugzilla', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
790: }
791: else
792: {
793: $link = $url;
794: }
795: # Add the text
796: if ($text ne "")
797: {
798: $template .=
799: "<table bgcolor='#AA3333' cellspacing='1' cellpadding='1' border='0'><tr>".
800: "<td bgcolor='#FF5555'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
801: }
802:
803: # Add the graphic
1.179 matthew 804: my $title = &mt('Report a Bug');
1.215 albertel 805: my $bugicon=&lonhttpdurl("/adm/lonMisc/smallBug.gif");
1.172 www 806: $template .= <<"ENDTEMPLATE";
1.218 albertel 807: <a href="$link" title="$title"><img src="$bugicon" border="0" alt="(Bug: $topic)" /></a>
1.172 www 808: ENDTEMPLATE
809: if ($text ne '') { $template.='</td></tr></table>' };
810: return $template;
811:
812: }
813:
814: sub help_open_faq {
815: my ($topic, $text, $stayOnPage, $width, $height) = @_;
1.258 albertel 816: unless ($env{'user.adv'}) { return ''; }
1.172 www 817: unless ($Apache::lonnet::perlvar{'FAQHost'}) { return ''; }
818: $text = "" if (not defined $text);
819: $stayOnPage = 0 if (not defined $stayOnPage);
1.258 albertel 820: if ($env{'browser.interface'} eq 'textual' ||
821: $env{'environment.remote'} eq 'off' ) {
1.172 www 822: $stayOnPage=1;
823: }
824: $width = 350 if (not defined $width);
825: $height = 400 if (not defined $height);
826:
827: $topic=~s/\W+/\+/g;
828: my $link='';
829: my $template='';
830: my $url=$Apache::lonnet::perlvar{'FAQHost'}.'/fom/cache/'.$topic.'.html';
831: if (!$stayOnPage)
832: {
833: $link = "javascript:void(open('$url', 'FAQ-O-Matic', 'menubar=0,toolbar=1,scrollbars=1,width=$width,height=$height,resizable=yes'))";
834: }
835: else
836: {
837: $link = $url;
838: }
839:
840: # Add the text
841: if ($text ne "")
842: {
843: $template .=
1.173 www 844: "<table bgcolor='#337733' cellspacing='1' cellpadding='1' border='0'><tr>".
845: "<td bgcolor='#448844'><a href=\"$link\"><font color='#FFFFFF' size='2'>$text</font></a>";
1.172 www 846: }
847:
848: # Add the graphic
1.179 matthew 849: my $title = &mt('View the FAQ');
1.215 albertel 850: my $faqicon=&lonhttpdurl("/adm/lonMisc/smallFAQ.gif");
1.172 www 851: $template .= <<"ENDTEMPLATE";
1.218 albertel 852: <a href="$link" title="$title"><img src="$faqicon" border="0" alt="(FAQ: $topic)" /></a>
1.172 www 853: ENDTEMPLATE
854: if ($text ne '') { $template.='</td></tr></table>' };
855: return $template;
856:
1.44 bowersj2 857: }
1.37 matthew 858:
1.180 matthew 859: ###############################################################
860: ###############################################################
861:
1.45 matthew 862: =pod
863:
1.256 matthew 864: =item * change_content_javascript():
865:
866: This and the next function allow you to create small sections of an
867: otherwise static HTML page that you can update on the fly with
868: Javascript, even in Netscape 4.
869:
870: The Javascript fragment returned by this function (no E<lt>scriptE<gt> tag)
871: must be written to the HTML page once. It will prove the Javascript
872: function "change(name, content)". Calling the change function with the
873: name of the section
874: you want to update, matching the name passed to C<changable_area>, and
875: the new content you want to put in there, will put the content into
876: that area.
877:
878: B<Note>: Netscape 4 only reserves enough space for the changable area
879: to contain room for the original contents. You need to "make space"
880: for whatever changes you wish to make, and be B<sure> to check your
881: code in Netscape 4. This feature in Netscape 4 is B<not> powerful;
882: it's adequate for updating a one-line status display, but little more.
883: This script will set the space to 100% width, so you only need to
884: worry about height in Netscape 4.
885:
886: Modern browsers are much less limiting, and if you can commit to the
887: user not using Netscape 4, this feature may be used freely with
888: pretty much any HTML.
889:
890: =cut
891:
892: sub change_content_javascript {
893: # If we're on Netscape 4, we need to use Layer-based code
1.258 albertel 894: if ($env{'browser.type'} eq 'netscape' &&
895: $env{'browser.version'} =~ /^4\./) {
1.256 matthew 896: return (<<NETSCAPE4);
897: function change(name, content) {
898: doc = document.layers[name+"___escape"].layers[0].document;
899: doc.open();
900: doc.write(content);
901: doc.close();
902: }
903: NETSCAPE4
904: } else {
905: # Otherwise, we need to use semi-standards-compliant code
906: # (technically, "innerHTML" isn't standard but the equivalent
907: # is really scary, and every useful browser supports it
908: return (<<DOMBASED);
909: function change(name, content) {
910: element = document.getElementById(name);
911: element.innerHTML = content;
912: }
913: DOMBASED
914: }
915: }
916:
917: =pod
918:
919: =item * changable_area($name, $origContent):
920:
921: This provides a "changable area" that can be modified on the fly via
922: the Javascript code provided in C<change_content_javascript>. $name is
923: the name you will use to reference the area later; do not repeat the
924: same name on a given HTML page more then once. $origContent is what
925: the area will originally contain, which can be left blank.
926:
927: =cut
928:
929: sub changable_area {
930: my ($name, $origContent) = @_;
931:
1.258 albertel 932: if ($env{'browser.type'} eq 'netscape' &&
933: $env{'browser.version'} =~ /^4\./) {
1.256 matthew 934: # If this is netscape 4, we need to use the Layer tag
935: return "<ilayer width='100%' id='${name}___escape' overflow='none'><layer width='100%' id='$name' overflow='none'>$origContent</layer></ilayer>";
936: } else {
937: return "<span id='$name'>$origContent</span>";
938: }
939: }
940:
941: =pod
942:
943: =back
944:
945: =head1 Excel and CSV file utility routines
946:
947: =over 4
948:
949: =cut
950:
951: ###############################################################
952: ###############################################################
953:
954: =pod
955:
1.112 bowersj2 956: =item * csv_translate($text)
1.37 matthew 957:
1.185 www 958: Translate $text to allow it to be output as a 'comma separated values'
1.37 matthew 959: format.
960:
961: =cut
962:
1.180 matthew 963: ###############################################################
964: ###############################################################
1.37 matthew 965: sub csv_translate {
966: my $text = shift;
967: $text =~ s/\"/\"\"/g;
1.209 albertel 968: $text =~ s/\n/ /g;
1.37 matthew 969: return $text;
970: }
1.180 matthew 971:
972: ###############################################################
973: ###############################################################
974:
975: =pod
976:
977: =item * define_excel_formats
978:
979: Define some commonly used Excel cell formats.
980:
981: Currently supported formats:
982:
983: =over 4
984:
985: =item header
986:
987: =item bold
988:
989: =item h1
990:
991: =item h2
992:
993: =item h3
994:
1.256 matthew 995: =item h4
996:
997: =item i
998:
1.180 matthew 999: =item date
1000:
1001: =back
1002:
1003: Inputs: $workbook
1004:
1005: Returns: $format, a hash reference.
1006:
1007: =cut
1008:
1009: ###############################################################
1010: ###############################################################
1011: sub define_excel_formats {
1012: my ($workbook) = @_;
1013: my $format;
1014: $format->{'header'} = $workbook->add_format(bold => 1,
1015: bottom => 1,
1016: align => 'center');
1017: $format->{'bold'} = $workbook->add_format(bold=>1);
1018: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
1019: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
1020: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
1.255 matthew 1021: $format->{'h4'} = $workbook->add_format(bold=>1, size=>12);
1.246 matthew 1022: $format->{'i'} = $workbook->add_format(italic=>1);
1.180 matthew 1023: $format->{'date'} = $workbook->add_format(num_format=>
1.207 matthew 1024: 'mm/dd/yyyy hh:mm:ss');
1.180 matthew 1025: return $format;
1026: }
1027:
1028: ###############################################################
1029: ###############################################################
1.113 bowersj2 1030:
1031: =pod
1032:
1.256 matthew 1033: =item * create_workbook
1.255 matthew 1034:
1035: Create an Excel worksheet. If it fails, output message on the
1036: request object and return undefs.
1037:
1038: Inputs: Apache request object
1039:
1040: Returns (undef) on failure,
1041: Excel worksheet object, scalar with filename, and formats
1042: from &Apache::loncommon::define_excel_formats on success
1043:
1044: =cut
1045:
1046: ###############################################################
1047: ###############################################################
1048: sub create_workbook {
1049: my ($r) = @_;
1050: #
1051: # Create the excel spreadsheet
1052: my $filename = '/prtspool/'.
1.258 albertel 1053: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1.255 matthew 1054: time.'_'.rand(1000000000).'.xls';
1055: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1056: if (! defined($workbook)) {
1057: $r->log_error("Error creating excel spreadsheet $filename: $!");
1058: $r->print('<p>'.&mt("Unable to create new Excel file. ".
1059: "This error has been logged. ".
1060: "Please alert your LON-CAPA administrator").
1061: '</p>');
1062: return (undef);
1063: }
1064: #
1065: $workbook->set_tempdir('/home/httpd/perl/tmp');
1066: #
1067: my $format = &Apache::loncommon::define_excel_formats($workbook);
1068: return ($workbook,$filename,$format);
1069: }
1070:
1071: ###############################################################
1072: ###############################################################
1073:
1074: =pod
1075:
1.256 matthew 1076: =item * create_text_file
1.113 bowersj2 1077:
1.256 matthew 1078: Create a file to write to and eventually make available to the usre.
1079: If file creation fails, outputs an error message on the request object and
1080: return undefs.
1.113 bowersj2 1081:
1.256 matthew 1082: Inputs: Apache request object, and file suffix
1.113 bowersj2 1083:
1.256 matthew 1084: Returns (undef) on failure,
1085: Filehandle and filename on success.
1.113 bowersj2 1086:
1087: =cut
1088:
1.256 matthew 1089: ###############################################################
1090: ###############################################################
1091: sub create_text_file {
1092: my ($r,$suffix) = @_;
1093: if (! defined($suffix)) { $suffix = 'txt'; };
1094: my $fh;
1095: my $filename = '/prtspool/'.
1.258 albertel 1096: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
1.256 matthew 1097: time.'_'.rand(1000000000).'.'.$suffix;
1098: $fh = Apache::File->new('>/home/httpd'.$filename);
1099: if (! defined($fh)) {
1100: $r->log_error("Couldn't open $filename for output $!");
1101: $r->print("Problems occured in creating the output file. ".
1102: "This error has been logged. ".
1103: "Please alert your LON-CAPA administrator.");
1.113 bowersj2 1104: }
1.256 matthew 1105: return ($fh,$filename)
1.113 bowersj2 1106: }
1107:
1108:
1.256 matthew 1109: =pod
1.113 bowersj2 1110:
1111: =back
1112:
1113: =cut
1.37 matthew 1114:
1115: ###############################################################
1.33 matthew 1116: ## Home server <option> list generating code ##
1117: ###############################################################
1.35 matthew 1118:
1.45 matthew 1119: =pod
1120:
1.112 bowersj2 1121: =head1 Home Server option list generating code
1122:
1123: =over 4
1124:
1125: =item * get_domains()
1.35 matthew 1126:
1127: Returns an array containing each of the domains listed in the hosts.tab
1128: file.
1129:
1130: =cut
1131:
1132: #-------------------------------------------
1.34 matthew 1133: sub get_domains {
1134: # The code below was stolen from "The Perl Cookbook", p 102, 1st ed.
1135: my @domains;
1136: my %seen;
1137: foreach (sort values(%Apache::lonnet::hostdom)) {
1.169 www 1138: push (@domains,$_) unless $seen{$_}++;
1.34 matthew 1139: }
1140: return @domains;
1141: }
1.88 www 1142:
1.169 www 1143: # ------------------------------------------
1144:
1145: sub domain_select {
1146: my ($name,$value,$multiple)=@_;
1147: my %domains=map {
1148: $_ => $_.' '.$Apache::lonnet::domaindescription{$_}
1149: } &get_domains;
1150: if ($multiple) {
1151: $domains{''}=&mt('Any domain');
1.191 matthew 1152: return &multiple_select_form($name,$value,4,%domains);
1.169 www 1153: } else {
1154: return &select_form($name,$value,%domains);
1155: }
1156: }
1157:
1158: sub multiple_select_form {
1.191 matthew 1159: my ($name,$value,$size,%hash)=@_;
1.169 www 1160: my %selected = map { $_ => 1 } ref($value)?@{$value}:($value);
1161: my $output='';
1.191 matthew 1162: if (! defined($size)) {
1163: $size = 4;
1164: if (scalar(keys(%hash))<4) {
1165: $size = scalar(keys(%hash));
1166: }
1167: }
1.169 www 1168: $output.="\n<select name='$name' size='$size' multiple='1'>";
1.191 matthew 1169: foreach (sort(keys(%hash))) {
1170: $output.='<option value="'.$_.'" ';
1.253 albertel 1171: $output.='selected="selected" ' if ($selected{$_});
1.191 matthew 1172: $output.='>'.$hash{$_}."</option>\n";
1.169 www 1173: }
1174: $output.="</select>\n";
1175: return $output;
1176: }
1177:
1.88 www 1178: #-------------------------------------------
1179:
1180: =pod
1181:
1.112 bowersj2 1182: =item * select_form($defdom,$name,%hash)
1.88 www 1183:
1184: Returns a string containing a <select name='$name' size='1'> form to
1185: allow a user to select options from a hash option_name => displayed text.
1186: See lonrights.pm for an example invocation and use.
1187:
1188: =cut
1189:
1190: #-------------------------------------------
1191: sub select_form {
1192: my ($def,$name,%hash) = @_;
1193: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1.128 albertel 1194: my @keys;
1195: if (exists($hash{'select_form_order'})) {
1196: @keys=@{$hash{'select_form_order'}};
1197: } else {
1198: @keys=sort(keys(%hash));
1199: }
1200: foreach (@keys) {
1.88 www 1201: $selectform.="<option value=\"$_\" ".
1.253 albertel 1202: ($_ eq $def ? 'selected="selected" ' : '').
1.119 www 1203: ">".&mt($hash{$_})."</option>\n";
1.88 www 1204: }
1205: $selectform.="</select>";
1206: return $selectform;
1207: }
1208:
1.167 www 1209: sub gradeleveldescription {
1210: my $gradelevel=shift;
1211: my %gradelevels=(0 => 'Not specified',
1212: 1 => 'Grade 1',
1213: 2 => 'Grade 2',
1214: 3 => 'Grade 3',
1215: 4 => 'Grade 4',
1216: 5 => 'Grade 5',
1217: 6 => 'Grade 6',
1218: 7 => 'Grade 7',
1219: 8 => 'Grade 8',
1220: 9 => 'Grade 9',
1221: 10 => 'Grade 10',
1222: 11 => 'Grade 11',
1223: 12 => 'Grade 12',
1224: 13 => 'Grade 13',
1225: 14 => '100 Level',
1226: 15 => '200 Level',
1227: 16 => '300 Level',
1228: 17 => '400 Level',
1229: 18 => 'Graduate Level');
1230: return &mt($gradelevels{$gradelevel});
1231: }
1232:
1.163 www 1233: sub select_level_form {
1234: my ($deflevel,$name)=@_;
1235: unless ($deflevel) { $deflevel=0; }
1.167 www 1236: my $selectform = "<select name=\"$name\" size=\"1\">\n";
1237: for (my $i=0; $i<=18; $i++) {
1238: $selectform.="<option value=\"$i\" ".
1.253 albertel 1239: ($i==$deflevel ? 'selected="selected" ' : '').
1.167 www 1240: ">".&gradeleveldescription($i)."</option>\n";
1241: }
1242: $selectform.="</select>";
1243: return $selectform;
1.163 www 1244: }
1.167 www 1245:
1.35 matthew 1246: #-------------------------------------------
1247:
1.45 matthew 1248: =pod
1249:
1.112 bowersj2 1250: =item * select_dom_form($defdom,$name,$includeempty)
1.35 matthew 1251:
1252: Returns a string containing a <select name='$name' size='1'> form to
1253: allow a user to select the domain to preform an operation in.
1254: See loncreateuser.pm for an example invocation and use.
1255:
1.90 www 1256: If the $includeempty flag is set, it also includes an empty choice ("no domain
1257: selected");
1258:
1.35 matthew 1259: =cut
1260:
1261: #-------------------------------------------
1.34 matthew 1262: sub select_dom_form {
1.90 www 1263: my ($defdom,$name,$includeempty) = @_;
1.34 matthew 1264: my @domains = get_domains();
1.90 www 1265: if ($includeempty) { @domains=('',@domains); }
1.34 matthew 1266: my $selectdomain = "<select name=\"$name\" size=\"1\">\n";
1267: foreach (@domains) {
1268: $selectdomain.="<option value=\"$_\" ".
1.253 albertel 1269: ($_ eq $defdom ? 'selected="selected" ' : '').
1.34 matthew 1270: ">$_</option>\n";
1271: }
1272: $selectdomain.="</select>";
1273: return $selectdomain;
1274: }
1275:
1.35 matthew 1276: #-------------------------------------------
1277:
1.45 matthew 1278: =pod
1279:
1.112 bowersj2 1280: =item * get_library_servers($domain)
1.35 matthew 1281:
1282: Returns a hash which contains keys like '103l3' and values like
1283: 'kirk.lite.msu.edu'. All of the keys will be for machines in the
1284: given $domain.
1285:
1286: =cut
1287:
1288: #-------------------------------------------
1.52 matthew 1289: sub get_library_servers {
1.33 matthew 1290: my $domain = shift;
1.52 matthew 1291: my %library_servers;
1.33 matthew 1292: foreach (keys(%Apache::lonnet::libserv)) {
1293: if ($Apache::lonnet::hostdom{$_} eq $domain) {
1.52 matthew 1294: $library_servers{$_} = $Apache::lonnet::hostname{$_};
1.33 matthew 1295: }
1296: }
1.52 matthew 1297: return %library_servers;
1.33 matthew 1298: }
1299:
1.35 matthew 1300: #-------------------------------------------
1301:
1.45 matthew 1302: =pod
1303:
1.112 bowersj2 1304: =item * home_server_option_list($domain)
1.35 matthew 1305:
1306: returns a string which contains an <option> list to be used in a
1307: <select> form input. See loncreateuser.pm for an example.
1308:
1309: =cut
1310:
1311: #-------------------------------------------
1.33 matthew 1312: sub home_server_option_list {
1313: my $domain = shift;
1.52 matthew 1314: my %servers = &get_library_servers($domain);
1.33 matthew 1315: my $result = '';
1316: foreach (sort keys(%servers)) {
1317: $result.=
1318: '<option value="'.$_.'">'.$_.' '.$servers{$_}."</option>\n";
1319: }
1320: return $result;
1321: }
1.112 bowersj2 1322:
1323: =pod
1324:
1325: =back
1326:
1327: =cut
1.87 matthew 1328:
1329: ###############################################################
1.112 bowersj2 1330: ## Decoding User Agent ##
1.87 matthew 1331: ###############################################################
1332:
1333: =pod
1334:
1.112 bowersj2 1335: =head1 Decoding the User Agent
1336:
1337: =over 4
1338:
1339: =item * &decode_user_agent()
1.87 matthew 1340:
1341: Inputs: $r
1342:
1343: Outputs:
1344:
1345: =over 4
1346:
1.112 bowersj2 1347: =item * $httpbrowser
1.87 matthew 1348:
1.112 bowersj2 1349: =item * $clientbrowser
1.87 matthew 1350:
1.112 bowersj2 1351: =item * $clientversion
1.87 matthew 1352:
1.112 bowersj2 1353: =item * $clientmathml
1.87 matthew 1354:
1.112 bowersj2 1355: =item * $clientunicode
1.87 matthew 1356:
1.112 bowersj2 1357: =item * $clientos
1.87 matthew 1358:
1359: =back
1360:
1.157 matthew 1361: =back
1362:
1.87 matthew 1363: =cut
1364:
1365: ###############################################################
1366: ###############################################################
1367: sub decode_user_agent {
1.247 albertel 1368: my ($r)=@_;
1.87 matthew 1369: my @browsertype=split(/\&/,$Apache::lonnet::perlvar{"lonBrowsDet"});
1370: my %mathcap=split(/\&/,$$Apache::lonnet::perlvar{"lonMathML"});
1371: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
1.247 albertel 1372: if (!$httpbrowser && $r) { $httpbrowser=$r->header_in('User-Agent'); }
1.87 matthew 1373: my $clientbrowser='unknown';
1374: my $clientversion='0';
1375: my $clientmathml='';
1376: my $clientunicode='0';
1377: for (my $i=0;$i<=$#browsertype;$i++) {
1378: my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
1379: if (($httpbrowser=~/$match/i) && ($httpbrowser!~/$notmatch/i)) {
1380: $clientbrowser=$bname;
1381: $httpbrowser=~/$vreg/i;
1382: $clientversion=$1;
1383: $clientmathml=($clientversion>=$minv);
1384: $clientunicode=($clientversion>=$univ);
1385: }
1386: }
1387: my $clientos='unknown';
1388: if (($httpbrowser=~/linux/i) ||
1389: ($httpbrowser=~/unix/i) ||
1390: ($httpbrowser=~/ux/i) ||
1391: ($httpbrowser=~/solaris/i)) { $clientos='unix'; }
1392: if (($httpbrowser=~/vax/i) ||
1393: ($httpbrowser=~/vms/i)) { $clientos='vms'; }
1394: if ($httpbrowser=~/next/i) { $clientos='next'; }
1395: if (($httpbrowser=~/mac/i) ||
1396: ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
1397: if ($httpbrowser=~/win/i) { $clientos='win'; }
1398: if ($httpbrowser=~/embed/i) { $clientos='pda'; }
1399: return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
1400: $clientunicode,$clientos,);
1401: }
1402:
1.32 matthew 1403: ###############################################################
1404: ## Authentication changing form generation subroutines ##
1405: ###############################################################
1406: ##
1407: ## All of the authform_xxxxxxx subroutines take their inputs in a
1408: ## hash, and have reasonable default values.
1409: ##
1410: ## formname = the name given in the <form> tag.
1.35 matthew 1411: #-------------------------------------------
1412:
1.45 matthew 1413: =pod
1414:
1.112 bowersj2 1415: =head1 Authentication Routines
1416:
1417: =over 4
1418:
1419: =item * authform_xxxxxx
1.35 matthew 1420:
1421: The authform_xxxxxx subroutines provide javascript and html forms which
1422: handle some of the conveniences required for authentication forms.
1423: This is not an optimal method, but it works.
1424:
1425: See loncreateuser.pm for invocation and use examples.
1426:
1427: =over 4
1428:
1.112 bowersj2 1429: =item * authform_header
1.35 matthew 1430:
1.112 bowersj2 1431: =item * authform_authorwarning
1.35 matthew 1432:
1.112 bowersj2 1433: =item * authform_nochange
1.35 matthew 1434:
1.112 bowersj2 1435: =item * authform_kerberos
1.35 matthew 1436:
1.112 bowersj2 1437: =item * authform_internal
1.35 matthew 1438:
1.112 bowersj2 1439: =item * authform_filesystem
1.35 matthew 1440:
1441: =back
1442:
1.157 matthew 1443: =back
1444:
1.35 matthew 1445: =cut
1446:
1447: #-------------------------------------------
1.32 matthew 1448: sub authform_header{
1449: my %in = (
1450: formname => 'cu',
1.80 albertel 1451: kerb_def_dom => '',
1.32 matthew 1452: @_,
1453: );
1454: $in{'formname'} = 'document.' . $in{'formname'};
1455: my $result='';
1.80 albertel 1456:
1457: #---------------------------------------------- Code for upper case translation
1458: my $Javascript_toUpperCase;
1459: unless ($in{kerb_def_dom}) {
1460: $Javascript_toUpperCase =<<"END";
1461: switch (choice) {
1462: case 'krb': currentform.elements[choicearg].value =
1463: currentform.elements[choicearg].value.toUpperCase();
1464: break;
1465: default:
1466: }
1467: END
1468: } else {
1469: $Javascript_toUpperCase = "";
1470: }
1471:
1.165 raeburn 1472: my $radioval = "'nochange'";
1.174 matthew 1473: if (exists($in{'curr_authtype'}) &&
1474: defined($in{'curr_authtype'}) &&
1475: $in{'curr_authtype'} ne '') {
1476: $radioval = "'$in{'curr_authtype'}arg'";
1477: }
1.165 raeburn 1478: my $argfield = 'null';
1479: if ( grep/^mode$/,(keys %in) ) {
1480: if ($in{'mode'} eq 'modifycourse') {
1481: if ( grep/^curr_authtype$/,(keys %in) ) {
1482: $radioval = "'$in{'curr_authtype'}'";
1483: }
1484: if ( grep/^curr_autharg$/,(keys %in) ) {
1485: unless ($in{'curr_autharg'} eq '') {
1486: $argfield = "'$in{'curr_autharg'}'";
1487: }
1488: }
1489: }
1490: }
1491:
1.32 matthew 1492: $result.=<<"END";
1493: var current = new Object();
1.165 raeburn 1494: current.radiovalue = $radioval;
1495: current.argfield = $argfield;
1.32 matthew 1496:
1497: function changed_radio(choice,currentform) {
1498: var choicearg = choice + 'arg';
1499: // If a radio button in changed, we need to change the argfield
1500: if (current.radiovalue != choice) {
1501: current.radiovalue = choice;
1502: if (current.argfield != null) {
1503: currentform.elements[current.argfield].value = '';
1504: }
1505: if (choice == 'nochange') {
1506: current.argfield = null;
1507: } else {
1508: current.argfield = choicearg;
1509: switch(choice) {
1510: case 'krb':
1511: currentform.elements[current.argfield].value =
1512: "$in{'kerb_def_dom'}";
1513: break;
1514: default:
1515: break;
1516: }
1517: }
1518: }
1519: return;
1520: }
1.22 www 1521:
1.32 matthew 1522: function changed_text(choice,currentform) {
1523: var choicearg = choice + 'arg';
1524: if (currentform.elements[choicearg].value !='') {
1.80 albertel 1525: $Javascript_toUpperCase
1.32 matthew 1526: // clear old field
1527: if ((current.argfield != choicearg) && (current.argfield != null)) {
1528: currentform.elements[current.argfield].value = '';
1529: }
1530: current.argfield = choicearg;
1531: }
1532: set_auth_radio_buttons(choice,currentform);
1533: return;
1.20 www 1534: }
1.32 matthew 1535:
1536: function set_auth_radio_buttons(newvalue,currentform) {
1537: var i=0;
1538: while (i < currentform.login.length) {
1539: if (currentform.login[i].value == newvalue) { break; }
1540: i++;
1541: }
1542: if (i == currentform.login.length) {
1543: return;
1544: }
1545: current.radiovalue = newvalue;
1546: currentform.login[i].checked = true;
1547: return;
1548: }
1549: END
1550: return $result;
1551: }
1552:
1553: sub authform_authorwarning{
1554: my $result='';
1.144 matthew 1555: $result='<i>'.
1556: &mt('As a general rule, only authors or co-authors should be '.
1557: 'filesystem authenticated '.
1558: '(which allows access to the server filesystem).')."</i>\n";
1.32 matthew 1559: return $result;
1560: }
1561:
1562: sub authform_nochange{
1563: my %in = (
1564: formname => 'document.cu',
1565: kerb_def_dom => 'MSU.EDU',
1566: @_,
1567: );
1.144 matthew 1568: my $result = &mt('[_1] Do not change login data',
1569: '<input type="radio" name="login" value="nochange" '.
1570: 'checked="checked" onclick="'.
1571: "javascript:changed_radio('nochange',$in{'formname'});".'" />');
1.32 matthew 1572: return $result;
1573: }
1574:
1575: sub authform_kerberos{
1576: my %in = (
1577: formname => 'document.cu',
1578: kerb_def_dom => 'MSU.EDU',
1.80 albertel 1579: kerb_def_auth => 'krb4',
1.32 matthew 1580: @_,
1581: );
1.165 raeburn 1582: my ($check4,$check5,$krbarg);
1.80 albertel 1583: if ($in{'kerb_def_auth'} eq 'krb5') {
1584: $check5 = " checked=\"on\"";
1585: } else {
1586: $check4 = " checked=\"on\"";
1587: }
1.165 raeburn 1588: $krbarg = $in{'kerb_def_dom'};
1589:
1590: my $krbcheck = "";
1591: if ( grep/^curr_authtype$/,(keys %in) ) {
1592: if ($in{'curr_authtype'} =~ m/^krb/) {
1593: $krbcheck = " checked=\"on\"";
1594: if ( grep/^curr_autharg$/,(keys %in) ) {
1595: $krbarg = $in{'curr_autharg'};
1596: }
1597: }
1598: }
1599:
1.144 matthew 1600: my $jscall = "javascript:changed_radio('krb',$in{'formname'});";
1601: my $result .= &mt
1602: ('[_1] Kerberos authenticated with domain [_2] '.
1603: '[_3] Version 4 [_4] Version 5',
1604: '<input type="radio" name="login" value="krb" '.
1.165 raeburn 1605: 'onclick="'.$jscall.'" onchange="'.$jscall.'"'.$krbcheck.' />',
1.144 matthew 1606: '<input type="text" size="10" name="krbarg" '.
1.165 raeburn 1607: 'value="'.$krbarg.'" '.
1.144 matthew 1608: 'onchange="'.$jscall.'" />',
1609: '<input type="radio" name="krbver" value="4" '.$check4.' />',
1610: '<input type="radio" name="krbver" value="5" '.$check5.' />');
1.32 matthew 1611: return $result;
1612: }
1613:
1614: sub authform_internal{
1615: my %args = (
1616: formname => 'document.cu',
1617: kerb_def_dom => 'MSU.EDU',
1618: @_,
1619: );
1.165 raeburn 1620:
1621: my $intcheck = "";
1622: my $intarg = 'value=""';
1623: if ( grep/^curr_authtype$/,(keys %args) ) {
1624: if ($args{'curr_authtype'} eq 'int') {
1625: $intcheck = " checked=\"on\"";
1626: if ( grep/^curr_autharg$/,(keys %args) ) {
1627: $intarg = "value=\"$args{'curr_autharg'}\"";
1628: }
1629: }
1630: }
1631:
1.144 matthew 1632: my $jscall = "javascript:changed_radio('int',$args{'formname'});";
1633: my $result.=&mt
1634: ('[_1] Internally authenticated (with initial password [_2])',
1.165 raeburn 1635: '<input type="radio" name="login" value="int" '.$intcheck.
1636: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1637: '<input type="text" size="10" name="intarg" '.$intarg.
1638: ' onchange="'.$jscall.'" />');
1.32 matthew 1639: return $result;
1640: }
1641:
1642: sub authform_local{
1643: my %in = (
1644: formname => 'document.cu',
1645: kerb_def_dom => 'MSU.EDU',
1646: @_,
1647: );
1.165 raeburn 1648:
1649: my $loccheck = "";
1650: my $locarg = 'value=""';
1651: if ( grep/^curr_authtype$/,(keys %in) ) {
1652: if ($in{'curr_authtype'} eq 'loc') {
1653: $loccheck = " checked=\"on\"";
1654: if ( grep/^curr_autharg$/,(keys %in) ) {
1655: $locarg = "value=\"$in{'curr_autharg'}\"";
1656: }
1657: }
1658: }
1659:
1.144 matthew 1660: my $jscall = "javascript:changed_radio('loc',$in{'formname'});";
1.160 matthew 1661: my $result.=&mt('[_1] Local Authentication with argument [_2]',
1.165 raeburn 1662: '<input type="radio" name="login" value="loc" '.$loccheck.
1663: ' onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1664: '<input type="text" size="10" name="locarg" '.$locarg.
1665: ' onchange="'.$jscall.'" />');
1.32 matthew 1666: return $result;
1667: }
1668:
1669: sub authform_filesystem{
1670: my %in = (
1671: formname => 'document.cu',
1672: kerb_def_dom => 'MSU.EDU',
1673: @_,
1674: );
1.144 matthew 1675: my $jscall = "javascript:changed_radio('fsys',$in{'formname'});";
1676: my $result.= &mt
1677: ('[_1] Filesystem Authenticated (with initial password [_2])',
1678: '<input type="radio" name="login" value="fsys" '.
1679: 'onchange="'.$jscall.'" onclick="'.$jscall.'" />',
1680: '<input type="text" size="10" name="fsysarg" value="" '.
1681: 'onchange="'.$jscall.'" />');
1.32 matthew 1682: return $result;
1683: }
1684:
1.80 albertel 1685: ###############################################################
1686: ## Get Authentication Defaults for Domain ##
1687: ###############################################################
1688:
1689: =pod
1690:
1.112 bowersj2 1691: =head1 Domains and Authentication
1692:
1693: Returns default authentication type and an associated argument as
1694: listed in file 'domain.tab'.
1695:
1696: =over 4
1697:
1698: =item * get_auth_defaults
1.80 albertel 1699:
1700: get_auth_defaults($target_domain) returns the default authentication
1701: type and an associated argument (initial password or a kerberos domain).
1702: These values are stored in lonTabs/domain.tab
1703:
1704: ($def_auth, $def_arg) = &get_auth_defaults($target_domain);
1705:
1706: If target_domain is not found in domain.tab, returns nothing ('').
1707:
1708: =cut
1709:
1710: #-------------------------------------------
1711: sub get_auth_defaults {
1712: my $domain=shift;
1713: return ($Apache::lonnet::domain_auth_def{$domain},$Apache::lonnet::domain_auth_arg_def{$domain});
1714: }
1715: ###############################################################
1716: ## End Get Authentication Defaults for Domain ##
1717: ###############################################################
1718:
1719: ###############################################################
1720: ## Get Kerberos Defaults for Domain ##
1721: ###############################################################
1722: ##
1723: ## Returns default kerberos version and an associated argument
1724: ## as listed in file domain.tab. If not listed, provides
1725: ## appropriate default domain and kerberos version.
1726: ##
1727: #-------------------------------------------
1728:
1729: =pod
1730:
1.112 bowersj2 1731: =item * get_kerberos_defaults
1.80 albertel 1732:
1733: get_kerberos_defaults($target_domain) returns the default kerberos
1734: version and domain. If not found in domain.tabs, it defaults to
1735: version 4 and the domain of the server.
1736:
1737: ($def_version, $def_krb_domain) = &get_kerberos_defaults($target_domain);
1738:
1739: =cut
1740:
1741: #-------------------------------------------
1742: sub get_kerberos_defaults {
1743: my $domain=shift;
1744: my ($krbdef,$krbdefdom) =
1745: &Apache::loncommon::get_auth_defaults($domain);
1746: unless ($krbdef =~/^krb/ && $krbdefdom) {
1747: $ENV{'SERVER_NAME'}=~/(\w+\.\w+)$/;
1748: my $krbdefdom=$1;
1749: $krbdefdom=~tr/a-z/A-Z/;
1750: $krbdef = "krb4";
1751: }
1752: return ($krbdef,$krbdefdom);
1753: }
1.112 bowersj2 1754:
1755: =pod
1756:
1757: =back
1758:
1759: =cut
1.32 matthew 1760:
1.46 matthew 1761: ###############################################################
1762: ## Thesaurus Functions ##
1763: ###############################################################
1.20 www 1764:
1.46 matthew 1765: =pod
1.20 www 1766:
1.112 bowersj2 1767: =head1 Thesaurus Functions
1768:
1769: =over 4
1770:
1771: =item * initialize_keywords
1.46 matthew 1772:
1773: Initializes the package variable %Keywords if it is empty. Uses the
1774: package variable $thesaurus_db_file.
1775:
1776: =cut
1777:
1778: ###################################################
1779:
1780: sub initialize_keywords {
1781: return 1 if (scalar keys(%Keywords));
1782: # If we are here, %Keywords is empty, so fill it up
1783: # Make sure the file we need exists...
1784: if (! -e $thesaurus_db_file) {
1785: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file".
1786: " failed because it does not exist");
1787: return 0;
1788: }
1789: # Set up the hash as a database
1790: my %thesaurus_db;
1791: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1792: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1793: &Apache::lonnet::logthis("Could not tie \%thesaurus_db to ".
1794: $thesaurus_db_file);
1795: return 0;
1796: }
1797: # Get the average number of appearances of a word.
1798: my $avecount = $thesaurus_db{'average.count'};
1799: # Put keywords (those that appear > average) into %Keywords
1800: while (my ($word,$data)=each (%thesaurus_db)) {
1801: my ($count,undef) = split /:/,$data;
1802: $Keywords{$word}++ if ($count > $avecount);
1803: }
1804: untie %thesaurus_db;
1805: # Remove special values from %Keywords.
1806: foreach ('total.count','average.count') {
1807: delete($Keywords{$_}) if (exists($Keywords{$_}));
1808: }
1809: return 1;
1810: }
1811:
1812: ###################################################
1813:
1814: =pod
1815:
1.112 bowersj2 1816: =item * keyword($word)
1.46 matthew 1817:
1818: Returns true if $word is a keyword. A keyword is a word that appears more
1819: than the average number of times in the thesaurus database. Calls
1820: &initialize_keywords
1821:
1822: =cut
1823:
1824: ###################################################
1.20 www 1825:
1826: sub keyword {
1.46 matthew 1827: return if (!&initialize_keywords());
1828: my $word=lc(shift());
1829: $word=~s/\W//g;
1830: return exists($Keywords{$word});
1.20 www 1831: }
1.46 matthew 1832:
1833: ###############################################################
1834:
1835: =pod
1.20 www 1836:
1.112 bowersj2 1837: =item * get_related_words
1.46 matthew 1838:
1.160 matthew 1839: Look up a word in the thesaurus. Takes a scalar argument and returns
1.46 matthew 1840: an array of words. If the keyword is not in the thesaurus, an empty array
1841: will be returned. The order of the words returned is determined by the
1842: database which holds them.
1843:
1844: Uses global $thesaurus_db_file.
1845:
1846: =cut
1847:
1848: ###############################################################
1849: sub get_related_words {
1850: my $keyword = shift;
1851: my %thesaurus_db;
1852: if (! -e $thesaurus_db_file) {
1853: &Apache::lonnet::logthis("Attempt to access $thesaurus_db_file ".
1854: "failed because the file does not exist");
1855: return ();
1856: }
1857: if (! tie(%thesaurus_db,'GDBM_File',
1.53 albertel 1858: $thesaurus_db_file,&GDBM_READER(),0640)){
1.46 matthew 1859: return ();
1860: }
1861: my @Words=();
1862: if (exists($thesaurus_db{$keyword})) {
1863: $_ = $thesaurus_db{$keyword};
1864: (undef,@Words) = split/:/; # The first element is the number of times
1865: # the word appears. We do not need it now.
1866: for (my $i=0;$i<=$#Words;$i++) {
1867: ($Words[$i],undef)= split/\,/,$Words[$i];
1.20 www 1868: }
1869: }
1.46 matthew 1870: untie %thesaurus_db;
1871: return @Words;
1.14 harris41 1872: }
1.46 matthew 1873:
1.112 bowersj2 1874: =pod
1875:
1876: =back
1877:
1878: =cut
1.61 www 1879:
1880: # -------------------------------------------------------------- Plaintext name
1.81 albertel 1881: =pod
1882:
1.112 bowersj2 1883: =head1 User Name Functions
1884:
1885: =over 4
1886:
1.226 albertel 1887: =item * plainname($uname,$udom,$first)
1.81 albertel 1888:
1.112 bowersj2 1889: Takes a users logon name and returns it as a string in
1.226 albertel 1890: "first middle last generation" form
1891: if $first is set to 'lastname' then it returns it as
1892: 'lastname generation, firstname middlename' if their is a lastname
1.81 albertel 1893:
1894: =cut
1.61 www 1895:
1.81 albertel 1896: ###############################################################
1.61 www 1897: sub plainname {
1.226 albertel 1898: my ($uname,$udom,$first)=@_;
1.61 www 1899: my %names=&Apache::lonnet::get('environment',
1900: ['firstname','middlename','lastname','generation'],
1901: $udom,$uname);
1.226 albertel 1902: my $name=&Apache::lonnet::format_name($names{'firstname'},
1903: $names{'middlename'},
1904: $names{'lastname'},
1905: $names{'generation'},$first);
1906: $name=~s/^\s+//;
1.62 www 1907: $name=~s/\s+$//;
1908: $name=~s/\s+/ /g;
1.190 albertel 1909: if ($name !~ /\S/) { $name=$uname.'@'.$udom; }
1.62 www 1910: return $name;
1.61 www 1911: }
1.66 www 1912:
1913: # -------------------------------------------------------------------- Nickname
1.81 albertel 1914: =pod
1915:
1.112 bowersj2 1916: =item * nickname($uname,$udom)
1.81 albertel 1917:
1918: Gets a users name and returns it as a string as
1919:
1920: ""nickname""
1.66 www 1921:
1.81 albertel 1922: if the user has a nickname or
1923:
1924: "first middle last generation"
1925:
1926: if the user does not
1927:
1928: =cut
1.66 www 1929:
1930: sub nickname {
1931: my ($uname,$udom)=@_;
1.212 albertel 1932: my %names;
1.258 albertel 1933: if ($uname eq $env{'user.name'} &&
1934: $udom eq $env{'user.domain'}) {
1935: %names=('nickname' => $env{'environment.nickname'} ,
1936: 'firstname' => $env{'environment.firstname'} ,
1937: 'middlename' => $env{'environment.middlename'},
1938: 'lastname' => $env{'environment.lastname'} ,
1939: 'generation' => $env{'environment.generation'});
1.212 albertel 1940: } else {
1941: %names=&Apache::lonnet::get('environment',
1942: ['nickname','firstname','middlename',
1943: 'lastname','generation'],$udom,$uname);
1944: }
1.68 albertel 1945: my $name=$names{'nickname'};
1.66 www 1946: if ($name) {
1947: $name='"'.$name.'"';
1948: } else {
1949: $name=$names{'firstname'}.' '.$names{'middlename'}.' '.
1950: $names{'lastname'}.' '.$names{'generation'};
1951: $name=~s/\s+$//;
1952: $name=~s/\s+/ /g;
1953: }
1954: return $name;
1955: }
1956:
1.61 www 1957:
1958: # ------------------------------------------------------------------ Screenname
1.81 albertel 1959:
1960: =pod
1961:
1.112 bowersj2 1962: =item * screenname($uname,$udom)
1.81 albertel 1963:
1964: Gets a users screenname and returns it as a string
1965:
1966: =cut
1.61 www 1967:
1968: sub screenname {
1969: my ($uname,$udom)=@_;
1.258 albertel 1970: if ($uname eq $env{'user.name'} &&
1971: $udom eq $env{'user.domain'}) {return $env{'environment.screenname'};}
1.212 albertel 1972: my %names=&Apache::lonnet::get('environment',['screenname'],$udom,$uname);
1.68 albertel 1973: return $names{'screenname'};
1.62 www 1974: }
1975:
1.212 albertel 1976:
1.62 www 1977: # ------------------------------------------------------------- Message Wrapper
1978:
1979: sub messagewrapper {
1.200 matthew 1980: my ($link,$username,$domain)=@_;
1.62 www 1981: return
1.200 matthew 1982: '<a href="/adm/email?compose=individual&'.
1983: 'recname='.$username.'&recdom='.$domain.'" '.
1984: 'title="'.&mt('Send message').'">'.$link.'</a>';
1.74 www 1985: }
1986: # --------------------------------------------------------------- Notes Wrapper
1987:
1988: sub noteswrapper {
1989: my ($link,$un,$do)=@_;
1990: return
1991: "<a href='/adm/email?recordftf=retrieve&recname=$un&recdom=$do'>$link</a>";
1.62 www 1992: }
1993: # ------------------------------------------------------------- Aboutme Wrapper
1994:
1995: sub aboutmewrapper {
1.166 www 1996: my ($link,$username,$domain,$target)=@_;
1.205 www 1997: return '<a href="/adm/'.$domain.'/'.$username.'/aboutme"'.
1.200 matthew 1998: ($target?' target="$target"':'').' title="'.&mt('View this users personal page').'">'.$link.'</a>';
1.62 www 1999: }
2000:
2001: # ------------------------------------------------------------ Syllabus Wrapper
2002:
2003:
2004: sub syllabuswrapper {
1.109 matthew 2005: my ($linktext,$coursedir,$domain,$fontcolor)=@_;
2006: if ($fontcolor) {
2007: $linktext='<font color="'.$fontcolor.'">'.$linktext.'</font>';
2008: }
1.208 matthew 2009: return qq{<a href="/public/$domain/$coursedir/syllabus">$linktext</a>};
1.61 www 2010: }
1.14 harris41 2011:
1.208 matthew 2012: sub track_student_link {
1.268 albertel 2013: my ($linktext,$sname,$sdom,$target,$start) = @_;
2014: my $link ="/adm/trackstudent?";
1.208 matthew 2015: my $title = 'View recent activity';
2016: if (defined($sname) && $sname !~ /^\s*$/ &&
2017: defined($sdom) && $sdom !~ /^\s*$/) {
1.268 albertel 2018: $link .= "selected_student=$sname:$sdom";
1.208 matthew 2019: $title .= ' of this student';
1.268 albertel 2020: }
1.208 matthew 2021: if (defined($target) && $target !~ /^\s*$/) {
2022: $target = qq{target="$target"};
2023: } else {
2024: $target = '';
2025: }
1.268 albertel 2026: if ($start) { $link.='&start='.$start; }
1.208 matthew 2027: return qq{<a href="$link" title="$title" $target>$linktext</a>};
2028: }
2029:
1.112 bowersj2 2030: =pod
2031:
2032: =back
2033:
2034: =head1 Access .tab File Data
2035:
2036: =over 4
2037:
2038: =item * languageids()
2039:
2040: returns list of all language ids
2041:
2042: =cut
2043:
1.14 harris41 2044: sub languageids {
1.16 harris41 2045: return sort(keys(%language));
1.14 harris41 2046: }
2047:
1.112 bowersj2 2048: =pod
2049:
2050: =item * languagedescription()
2051:
2052: returns description of a specified language id
2053:
2054: =cut
2055:
1.14 harris41 2056: sub languagedescription {
1.125 www 2057: my $code=shift;
2058: return ($supported_language{$code}?'* ':'').
2059: $language{$code}.
1.126 www 2060: ($supported_language{$code}?' ('.&mt('interface available').')':'');
1.145 www 2061: }
2062:
2063: sub plainlanguagedescription {
2064: my $code=shift;
2065: return $language{$code};
2066: }
2067:
2068: sub supportedlanguagecode {
2069: my $code=shift;
2070: return $supported_language{$code};
1.97 www 2071: }
2072:
1.112 bowersj2 2073: =pod
2074:
2075: =item * copyrightids()
2076:
2077: returns list of all copyrights
2078:
2079: =cut
2080:
2081: sub copyrightids {
2082: return sort(keys(%cprtag));
2083: }
2084:
2085: =pod
2086:
2087: =item * copyrightdescription()
2088:
2089: returns description of a specified copyright id
2090:
2091: =cut
2092:
2093: sub copyrightdescription {
1.166 www 2094: return &mt($cprtag{shift(@_)});
1.112 bowersj2 2095: }
1.197 matthew 2096:
2097: =pod
2098:
1.192 taceyjo1 2099: =item * source_copyrightids()
2100:
2101: returns list of all source copyrights
2102:
2103: =cut
2104:
2105: sub source_copyrightids {
2106: return sort(keys(%scprtag));
2107: }
2108:
2109: =pod
2110:
2111: =item * source_copyrightdescription()
2112:
2113: returns description of a specified source copyright id
2114:
2115: =cut
2116:
2117: sub source_copyrightdescription {
2118: return &mt($scprtag{shift(@_)});
2119: }
1.112 bowersj2 2120:
2121: =pod
2122:
2123: =item * filecategories()
2124:
2125: returns list of all file categories
2126:
2127: =cut
2128:
2129: sub filecategories {
2130: return sort(keys(%category_extensions));
2131: }
2132:
2133: =pod
2134:
2135: =item * filecategorytypes()
2136:
2137: returns list of file types belonging to a given file
2138: category
2139:
2140: =cut
2141:
2142: sub filecategorytypes {
2143: return @{$category_extensions{lc($_[0])}};
2144: }
2145:
2146: =pod
2147:
2148: =item * fileembstyle()
2149:
2150: returns embedding style for a specified file type
2151:
2152: =cut
2153:
2154: sub fileembstyle {
2155: return $fe{lc(shift(@_))};
1.169 www 2156: }
2157:
2158:
2159: sub filecategoryselect {
2160: my ($name,$value)=@_;
1.189 matthew 2161: return &select_form($value,$name,
1.169 www 2162: '' => &mt('Any category'),
2163: map { $_,$_ } sort(keys(%category_extensions)));
1.112 bowersj2 2164: }
2165:
2166: =pod
2167:
2168: =item * filedescription()
2169:
2170: returns description for a specified file type
2171:
2172: =cut
2173:
2174: sub filedescription {
1.188 matthew 2175: my $file_description = $fd{lc(shift())};
2176: $file_description =~ s:([\[\]]):~$1:g;
2177: return &mt($file_description);
1.112 bowersj2 2178: }
2179:
2180: =pod
2181:
2182: =item * filedescriptionex()
2183:
2184: returns description for a specified file type with
2185: extra formatting
2186:
2187: =cut
2188:
2189: sub filedescriptionex {
2190: my $ex=shift;
1.188 matthew 2191: my $file_description = $fd{lc($ex)};
2192: $file_description =~ s:([\[\]]):~$1:g;
2193: return '.'.$ex.' '.&mt($file_description);
1.112 bowersj2 2194: }
2195:
2196: # End of .tab access
2197: =pod
2198:
2199: =back
2200:
2201: =cut
2202:
2203: # ------------------------------------------------------------------ File Types
2204: sub fileextensions {
2205: return sort(keys(%fe));
2206: }
2207:
1.97 www 2208: # ----------------------------------------------------------- Display Languages
2209: # returns a hash with all desired display languages
2210: #
2211:
2212: sub display_languages {
2213: my %languages=();
1.118 www 2214: foreach (&preferred_languages()) {
2215: $languages{$_}=1;
1.97 www 2216: }
2217: &get_unprocessed_cgi($ENV{'QUERY_STRING'},['displaylanguage']);
1.258 albertel 2218: if ($env{'form.displaylanguage'}) {
2219: foreach (split(/\s*(\,|\;|\:)\s*/,$env{'form.displaylanguage'})) {
1.97 www 2220: $languages{$_}=1;
2221: }
2222: }
2223: return %languages;
1.14 harris41 2224: }
2225:
1.117 www 2226: sub preferred_languages {
2227: my @languages=();
1.258 albertel 2228: if ($env{'course.'.$env{'request.course.id'}.'.languages'}) {
1.117 www 2229: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,
1.258 albertel 2230: $env{'course.'.$env{'request.course.id'}.'.languages'}));
1.177 www 2231: }
1.258 albertel 2232: if ($env{'environment.languages'}) {
2233: @languages=split(/\s*(\,|\;|\:)\s*/,$env{'environment.languages'});
1.118 www 2234: }
1.162 www 2235: my $browser=(split(/\;/,$ENV{'HTTP_ACCEPT_LANGUAGE'}))[0];
2236: if ($browser) {
2237: @languages=(@languages,split(/\s*(\,|\;|\:)\s*/,$browser));
2238: }
1.258 albertel 2239: if ($Apache::lonnet::domain_lang_def{$env{'user.domain'}}) {
1.118 www 2240: @languages=(@languages,
1.258 albertel 2241: $Apache::lonnet::domain_lang_def{$env{'user.domain'}});
1.118 www 2242: }
1.258 albertel 2243: if ($Apache::lonnet::domain_lang_def{$env{'request.role.domain'}}) {
1.118 www 2244: @languages=(@languages,
1.258 albertel 2245: $Apache::lonnet::domain_lang_def{$env{'request.role.domain'}});
1.118 www 2246: }
2247: if ($Apache::lonnet::domain_lang_def{
2248: $Apache::lonnet::perlvar{'lonDefDomain'}}) {
2249: @languages=(@languages,
2250: $Apache::lonnet::domain_lang_def{
2251: $Apache::lonnet::perlvar{'lonDefDomain'}});
2252: }
2253: # turn "en-ca" into "en-ca,en"
2254: my @genlanguages;
2255: foreach (@languages) {
2256: unless ($_=~/\w/) { next; }
2257: push (@genlanguages,$_);
2258: if ($_=~/(\-|\_)/) {
2259: push (@genlanguages,(split(/(\-|\_)/,$_))[0]);
2260: }
2261: }
2262: return @genlanguages;
1.117 www 2263: }
2264:
1.112 bowersj2 2265: ###############################################################
2266: ## Student Answer Attempts ##
2267: ###############################################################
2268:
2269: =pod
2270:
2271: =head1 Alternate Problem Views
2272:
2273: =over 4
2274:
2275: =item * get_previous_attempt($symb, $username, $domain, $course,
2276: $getattempt, $regexp, $gradesub)
2277:
2278: Return string with previous attempt on problem. Arguments:
2279:
2280: =over 4
2281:
2282: =item * $symb: Problem, including path
2283:
2284: =item * $username: username of the desired student
2285:
2286: =item * $domain: domain of the desired student
1.14 harris41 2287:
1.112 bowersj2 2288: =item * $course: Course ID
1.14 harris41 2289:
1.112 bowersj2 2290: =item * $getattempt: Leave blank for all attempts, otherwise put
2291: something
1.14 harris41 2292:
1.112 bowersj2 2293: =item * $regexp: if string matches this regexp, the string will be
2294: sent to $gradesub
1.14 harris41 2295:
1.112 bowersj2 2296: =item * $gradesub: routine that processes the string if it matches $regexp
1.14 harris41 2297:
1.112 bowersj2 2298: =back
1.14 harris41 2299:
1.112 bowersj2 2300: The output string is a table containing all desired attempts, if any.
1.16 harris41 2301:
1.112 bowersj2 2302: =cut
1.1 albertel 2303:
2304: sub get_previous_attempt {
1.43 ng 2305: my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub)=@_;
1.1 albertel 2306: my $prevattempts='';
1.43 ng 2307: no strict 'refs';
1.1 albertel 2308: if ($symb) {
1.3 albertel 2309: my (%returnhash)=
2310: &Apache::lonnet::restore($symb,$course,$domain,$username);
1.1 albertel 2311: if ($returnhash{'version'}) {
2312: my %lasthash=();
2313: my $version;
2314: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.19 harris41 2315: foreach (sort(split(/\:/,$returnhash{$version.':keys'}))) {
1.1 albertel 2316: $lasthash{$_}=$returnhash{$version.':'.$_};
1.19 harris41 2317: }
1.1 albertel 2318: }
1.43 ng 2319: $prevattempts='<table border="0" width="100%"><tr><td bgcolor="#777777">';
1.40 ng 2320: $prevattempts.='<table border="0" width="100%"><tr bgcolor="#e6ffff"><td>History</td>';
1.16 harris41 2321: foreach (sort(keys %lasthash)) {
1.31 albertel 2322: my ($ign,@parts) = split(/\./,$_);
1.41 ng 2323: if ($#parts > 0) {
1.31 albertel 2324: my $data=$parts[-1];
2325: pop(@parts);
1.40 ng 2326: $prevattempts.='<td>Part '.join('.',@parts).'<br />'.$data.' </td>';
1.31 albertel 2327: } else {
1.41 ng 2328: if ($#parts == 0) {
2329: $prevattempts.='<th>'.$parts[0].'</th>';
2330: } else {
2331: $prevattempts.='<th>'.$ign.'</th>';
2332: }
1.31 albertel 2333: }
1.16 harris41 2334: }
1.40 ng 2335: if ($getattempt eq '') {
2336: for ($version=1;$version<=$returnhash{'version'};$version++) {
2337: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Transaction '.$version.'</td>';
2338: foreach (sort(keys %lasthash)) {
2339: my $value;
2340: if ($_ =~ /timestamp/) {
2341: $value=scalar(localtime($returnhash{$version.':'.$_}));
2342: } else {
2343: $value=$returnhash{$version.':'.$_};
2344: }
1.142 albertel 2345: $prevattempts.='<td>'.&Apache::lonnet::unescape($value).' </td>';
1.40 ng 2346: }
2347: }
1.1 albertel 2348: }
1.40 ng 2349: $prevattempts.='</tr><tr bgcolor="#ffffe6"><td>Current</td>';
1.16 harris41 2350: foreach (sort(keys %lasthash)) {
1.5 albertel 2351: my $value;
2352: if ($_ =~ /timestamp/) {
2353: $value=scalar(localtime($lasthash{$_}));
2354: } else {
2355: $value=$lasthash{$_};
2356: }
1.142 albertel 2357: $value=&Apache::lonnet::unescape($value);
1.49 ng 2358: if ($_ =~/$regexp$/ && (defined &$gradesub)) {$value = &$gradesub($value)}
1.40 ng 2359: $prevattempts.='<td>'.$value.' </td>';
1.16 harris41 2360: }
1.40 ng 2361: $prevattempts.='</tr></table></td></tr></table>';
1.1 albertel 2362: } else {
2363: $prevattempts='Nothing submitted - no attempts.';
2364: }
2365: } else {
2366: $prevattempts='No data.';
2367: }
1.10 albertel 2368: }
2369:
1.107 albertel 2370: sub relative_to_absolute {
2371: my ($url,$output)=@_;
2372: my $parser=HTML::TokeParser->new(\$output);
2373: my $token;
2374: my $thisdir=$url;
2375: my @rlinks=();
2376: while ($token=$parser->get_token) {
2377: if ($token->[0] eq 'S') {
2378: if ($token->[1] eq 'a') {
2379: if ($token->[2]->{'href'}) {
2380: $rlinks[$#rlinks+1]=$token->[2]->{'href'};
2381: }
2382: } elsif ($token->[1] eq 'img' || $token->[1] eq 'embed' ) {
2383: $rlinks[$#rlinks+1]=$token->[2]->{'src'};
2384: } elsif ($token->[1] eq 'base') {
2385: $thisdir=$token->[2]->{'href'};
2386: }
2387: }
2388: }
2389: $thisdir=~s-/[^/]*$--;
2390: foreach (@rlinks) {
2391: unless (($_=~/^http:\/\//i) ||
2392: ($_=~/^\//) ||
2393: ($_=~/^javascript:/i) ||
2394: ($_=~/^mailto:/i) ||
2395: ($_=~/^\#/)) {
2396: my $newlocation=&Apache::lonnet::hreflocation($thisdir,$_);
2397: $output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/;
2398: }
2399: }
2400: # -------------------------------------------------- Deal with Applet codebases
2401: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
2402: return $output;
2403: }
2404:
1.112 bowersj2 2405: =pod
2406:
2407: =item * get_student_view
2408:
2409: show a snapshot of what student was looking at
2410:
2411: =cut
2412:
1.10 albertel 2413: sub get_student_view {
1.186 albertel 2414: my ($symb,$username,$domain,$courseid,$target,$moreenv) = @_;
1.114 www 2415: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2416: my (%form);
1.10 albertel 2417: my @elements=('symb','courseid','domain','username');
2418: foreach my $element (@elements) {
1.186 albertel 2419: $form{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2420: }
1.186 albertel 2421: if (defined($moreenv)) {
2422: %form=(%form,%{$moreenv});
2423: }
1.236 albertel 2424: if (defined($target)) { $form{'grade_target'} = $target; }
1.107 albertel 2425: $feedurl=&Apache::lonnet::clutter($feedurl);
1.186 albertel 2426: my $userview=&Apache::lonnet::ssi_body($feedurl,%form);
1.11 albertel 2427: $userview=~s/\<body[^\>]*\>//gi;
2428: $userview=~s/\<\/body\>//gi;
2429: $userview=~s/\<html\>//gi;
2430: $userview=~s/\<\/html\>//gi;
2431: $userview=~s/\<head\>//gi;
2432: $userview=~s/\<\/head\>//gi;
2433: $userview=~s/action\s*\=/would_be_action\=/gi;
1.107 albertel 2434: $userview=&relative_to_absolute($feedurl,$userview);
1.11 albertel 2435: return $userview;
2436: }
2437:
1.112 bowersj2 2438: =pod
2439:
2440: =item * get_student_answers()
2441:
2442: show a snapshot of how student was answering problem
2443:
2444: =cut
2445:
1.11 albertel 2446: sub get_student_answers {
1.100 sakharuk 2447: my ($symb,$username,$domain,$courseid,%form) = @_;
1.114 www 2448: my ($map,$id,$feedurl) = &Apache::lonnet::decode_symb($symb);
1.186 albertel 2449: my (%moreenv);
1.11 albertel 2450: my @elements=('symb','courseid','domain','username');
2451: foreach my $element (@elements) {
1.186 albertel 2452: $moreenv{'grade_'.$element}=eval '$'.$element #'
1.10 albertel 2453: }
1.186 albertel 2454: $moreenv{'grade_target'}='answer';
2455: %moreenv=(%form,%moreenv);
2456: my $userview=&Apache::lonnet::ssi('/res/'.$feedurl,%moreenv);
1.10 albertel 2457: return $userview;
1.1 albertel 2458: }
1.116 albertel 2459:
2460: =pod
2461:
2462: =item * &submlink()
2463:
1.242 albertel 2464: Inputs: $text $uname $udom $symb $target
1.116 albertel 2465:
2466: Returns: A link to grades.pm such as to see the SUBM view of a student
2467:
2468: =cut
2469:
2470: ###############################################
2471: sub submlink {
1.242 albertel 2472: my ($text,$uname,$udom,$symb,$target)=@_;
1.116 albertel 2473: if (!($uname && $udom)) {
2474: (my $cursymb, my $courseid,$udom,$uname)=
2475: &Apache::lonxml::whichuser($symb);
2476: if (!$symb) { $symb=$cursymb; }
2477: }
1.254 matthew 2478: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
1.242 albertel 2479: $symb=&Apache::lonnet::escape($symb);
2480: if ($target) { $target="target=\"$target\""; }
2481: return '<a href="/adm/grades?&command=submission&'.
2482: 'symb='.$symb.'&student='.$uname.
2483: '&userdom='.$udom.'" '.$target.'>'.$text.'</a>';
2484: }
2485: ##############################################
2486:
2487: =pod
2488:
2489: =item * &pgrdlink()
2490:
2491: Inputs: $text $uname $udom $symb $target
2492:
2493: Returns: A link to grades.pm such as to see the PGRD view of a student
2494:
2495: =cut
2496:
2497: ###############################################
2498: sub pgrdlink {
2499: my $link=&submlink(@_);
2500: $link=~s/(&command=submission)/$1&showgrading=yes/;
2501: return $link;
2502: }
2503: ##############################################
2504:
2505: =pod
2506:
2507: =item * &pprmlink()
2508:
2509: Inputs: $text $uname $udom $symb $target
2510:
2511: Returns: A link to parmset.pm such as to see the PPRM view of a
2512: student andn resource
2513:
2514: =cut
2515:
2516: ###############################################
2517: sub pprmlink {
2518: my ($text,$uname,$udom,$symb,$target)=@_;
2519: if (!($uname && $udom)) {
2520: (my $cursymb, my $courseid,$udom,$uname)=
2521: &Apache::lonxml::whichuser($symb);
2522: if (!$symb) { $symb=$cursymb; }
2523: }
1.254 matthew 2524: if (!$symb) { $symb=&Apache::lonnet::symbread(); }
1.242 albertel 2525: $symb=&Apache::lonnet::escape($symb);
2526: if ($target) { $target="target=\"$target\""; }
2527: return '<a href="/adm/parmset?&command=set&'.
2528: 'symb='.$symb.'&uname='.$uname.
2529: '&udom='.$udom.'" '.$target.'>'.$text.'</a>';
1.116 albertel 2530: }
2531: ##############################################
1.37 matthew 2532:
1.112 bowersj2 2533: =pod
2534:
2535: =back
2536:
2537: =cut
2538:
1.37 matthew 2539: ###############################################
1.51 www 2540:
2541:
2542: sub timehash {
2543: my @ltime=localtime(shift);
2544: return ( 'seconds' => $ltime[0],
2545: 'minutes' => $ltime[1],
2546: 'hours' => $ltime[2],
2547: 'day' => $ltime[3],
2548: 'month' => $ltime[4]+1,
2549: 'year' => $ltime[5]+1900,
2550: 'weekday' => $ltime[6],
2551: 'dayyear' => $ltime[7]+1,
2552: 'dlsav' => $ltime[8] );
2553: }
2554:
2555: sub maketime {
2556: my %th=@_;
2557: return POSIX::mktime(
2558: ($th{'seconds'},$th{'minutes'},$th{'hours'},
1.210 www 2559: $th{'day'},$th{'month'}-1,$th{'year'}-1900,0,0,-1));
1.70 www 2560: }
2561:
2562: #########################################
1.51 www 2563:
2564: sub findallcourses {
2565: my %courses=();
2566: my $now=time;
1.258 albertel 2567: foreach (keys %env) {
1.51 www 2568: if ($_=~/^user\.role\.\w+\.\/(\w+)\/(\w+)/) {
1.258 albertel 2569: my ($starttime,$endtime)=$env{$_};
1.51 www 2570: my $active=1;
2571: if ($starttime) {
2572: if ($now<$starttime) { $active=0; }
2573: }
2574: if ($endtime) {
2575: if ($now>$endtime) { $active=0; }
2576: }
2577: if ($active) { $courses{$1.'_'.$2}=1; }
2578: }
2579: }
2580: return keys %courses;
2581: }
1.37 matthew 2582:
1.54 www 2583: ###############################################
1.60 matthew 2584: ###############################################
2585:
2586: =pod
2587:
1.112 bowersj2 2588: =head1 Domain Template Functions
2589:
2590: =over 4
2591:
2592: =item * &determinedomain()
1.60 matthew 2593:
2594: Inputs: $domain (usually will be undef)
2595:
1.63 www 2596: Returns: Determines which domain should be used for designs
1.60 matthew 2597:
2598: =cut
1.54 www 2599:
1.60 matthew 2600: ###############################################
1.63 www 2601: sub determinedomain {
2602: my $domain=shift;
2603: if (! $domain) {
1.60 matthew 2604: # Determine domain if we have not been given one
2605: $domain = $Apache::lonnet::perlvar{'lonDefDomain'};
1.258 albertel 2606: if ($env{'user.domain'}) { $domain=$env{'user.domain'}; }
2607: if ($env{'request.role.domain'}) {
2608: $domain=$env{'request.role.domain'};
1.60 matthew 2609: }
2610: }
1.63 www 2611: return $domain;
2612: }
2613: ###############################################
2614: =pod
2615:
1.112 bowersj2 2616: =item * &domainlogo()
1.63 www 2617:
2618: Inputs: $domain (usually will be undef)
2619:
2620: Returns: A link to a domain logo, if the domain logo exists.
2621: If the domain logo does not exist, a description of the domain.
2622:
2623: =cut
1.112 bowersj2 2624:
1.63 www 2625: ###############################################
2626: sub domainlogo {
2627: my $domain = &determinedomain(shift);
2628: # See if there is a logo
1.59 www 2629: if (-e '/home/httpd/html/adm/lonDomLogos/'.$domain.'.gif') {
1.215 albertel 2630: my $logo=&lonhttpdurl("/adm/lonDomLogos/$domain.gif");
2631: return '<img src="'.$logo.'" alt="'.$domain.'" />';
1.60 matthew 2632: } elsif(exists($Apache::lonnet::domaindescription{$domain})) {
2633: return $Apache::lonnet::domaindescription{$domain};
1.59 www 2634: } else {
1.60 matthew 2635: return '';
1.59 www 2636: }
2637: }
1.63 www 2638: ##############################################
2639:
2640: =pod
2641:
1.112 bowersj2 2642: =item * &designparm()
1.63 www 2643:
2644: Inputs: $which parameter; $domain (usually will be undef)
2645:
2646: Returns: value of designparamter $which
2647:
2648: =cut
1.112 bowersj2 2649:
1.63 www 2650: ##############################################
2651: sub designparm {
2652: my ($which,$domain)=@_;
1.258 albertel 2653: if ($env{'browser.blackwhite'} eq 'on') {
1.110 www 2654: if ($which=~/\.(font|alink|vlink|link)$/) {
2655: return '#000000';
2656: }
2657: if ($which=~/\.(pgbg|sidebg)$/) {
2658: return '#FFFFFF';
2659: }
2660: if ($which=~/\.tabbg$/) {
2661: return '#CCCCCC';
2662: }
2663: }
1.258 albertel 2664: if ($env{'environment.color.'.$which}) {
2665: return $env{'environment.color.'.$which};
1.96 www 2666: }
1.63 www 2667: $domain=&determinedomain($domain);
2668: if ($designhash{$domain.'.'.$which}) {
2669: return $designhash{$domain.'.'.$which};
2670: } else {
2671: return $designhash{'default.'.$which};
2672: }
2673: }
1.59 www 2674:
1.60 matthew 2675: ###############################################
2676: ###############################################
2677:
2678: =pod
2679:
1.112 bowersj2 2680: =back
2681:
2682: =head1 HTTP Helpers
2683:
2684: =over 4
2685:
2686: =item * &bodytag()
1.60 matthew 2687:
2688: Returns a uniform header for LON-CAPA web pages.
2689:
2690: Inputs:
2691:
1.112 bowersj2 2692: =over 4
2693:
2694: =item * $title, A title to be displayed on the page.
2695:
2696: =item * $function, the current role (can be undef).
2697:
2698: =item * $addentries, extra parameters for the <body> tag.
2699:
2700: =item * $bodyonly, if defined, only return the <body> tag.
2701:
2702: =item * $domain, if defined, force a given domain.
2703:
2704: =item * $forcereg, if page should register as content page (relevant for
1.86 www 2705: text interface only)
1.60 matthew 2706:
1.112 bowersj2 2707: =back
2708:
1.60 matthew 2709: Returns: A uniform header for LON-CAPA web pages.
2710: If $bodyonly is nonzero, a string containing a <body> tag will be returned.
2711: If $bodyonly is undef or zero, an html string containing a <body> tag and
2712: other decorations will be returned.
2713:
2714: =cut
2715:
1.54 www 2716: sub bodytag {
1.272 raeburn 2717: my ($title,$function,$addentries,$bodyonly,$domain,$forcereg,$customtitle,$notopbar)=@_;
1.117 www 2718: $title=&mt($title);
1.183 matthew 2719: $function = &get_users_function() if (!$function);
1.63 www 2720: my $img=&designparm($function.'.img',$domain);
2721: my $pgbg=&designparm($function.'.pgbg',$domain);
2722: my $tabbg=&designparm($function.'.tabbg',$domain);
2723: my $font=&designparm($function.'.font',$domain);
2724: my $link=&designparm($function.'.link',$domain);
2725: my $alink=&designparm($function.'.alink',$domain);
2726: my $vlink=&designparm($function.'.vlink',$domain);
2727: my $sidebg=&designparm($function.'.sidebg',$domain);
1.110 www 2728: # Accessibility font enhance
2729: unless ($addentries) { $addentries=''; }
1.146 www 2730: my $addstyle='';
1.258 albertel 2731: if ($env{'browser.fontenhance'} eq 'on') {
1.146 www 2732: $addstyle=' font-size: x-large;';
1.110 www 2733: }
1.63 www 2734: # role and realm
1.55 www 2735: my ($role,$realm)
1.258 albertel 2736: =&Apache::lonnet::plaintext((split(/\./,$env{'request.role'}))[0]);
1.55 www 2737: # realm
1.258 albertel 2738: if ($env{'request.course.id'}) {
1.55 www 2739: $realm=
1.258 albertel 2740: $env{'course.'.$env{'request.course.id'}.'.description'};
1.54 www 2741: }
1.55 www 2742: unless ($realm) { $realm=' '; }
2743: # Set messages
1.60 matthew 2744: my $messages=&domainlogo($domain);
1.101 www 2745: # Port for miniserver
1.83 albertel 2746: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
2747: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
1.101 www 2748: # construct main body tag
1.60 matthew 2749: my $bodytag = <<END;
1.231 albertel 2750: <style type="text/css">
1.147 www 2751: h1, h2, h3, th { font-family: Arial, Helvetica, sans-serif }
1.146 www 2752: a:focus { color: red; background: yellow }
2753: </style>
1.54 www 2754: <body bgcolor="$pgbg" text="$font" alink="$alink" vlink="$vlink" link="$link"
1.151 www 2755: style="margin-top: 0px;$addstyle" $addentries>
1.60 matthew 2756: END
1.269 albertel 2757: &Apache::lontexconvert::jsMath_reset();
1.258 albertel 2758: if ($env{'environment.texengine'} eq 'jsMath') {
1.269 albertel 2759: $bodytag.=&Apache::lontexconvert::jsMath_header();
1.252 albertel 2760: }
2761:
1.94 www 2762: my $upperleft='<img src="http://'.$ENV{'HTTP_HOST'}.':'.
1.150 matthew 2763: $lonhttpdPort.$img.'" alt="'.$function.'" />';
1.60 matthew 2764: if ($bodyonly) {
2765: return $bodytag;
1.258 albertel 2766: } elsif ($env{'browser.interface'} eq 'textual') {
1.95 www 2767: # Accessibility
1.224 raeburn 2768:
1.93 www 2769: return $bodytag.&Apache::lonmenu::menubuttons($forcereg,'web',
2770: $forcereg).
2771: '<h1>LON-CAPA: '.$title.'</h1>';
1.258 albertel 2772: } elsif ($env{'environment.remote'} eq 'off') {
1.95 www 2773: # No Remote
1.206 albertel 2774: my $roleinfo=(<<ENDROLE);
2775: <td bgcolor="$tabbg" align="right">
2776: <font size="2" face="Arial, Helvetica, sans-serif">
1.258 albertel 2777: $env{'environment.firstname'}
2778: $env{'environment.middlename'}
2779: $env{'environment.lastname'}
2780: $env{'environment.generation'}
1.206 albertel 2781: </font>
2782: <br />
2783: <font size="2" face="Arial, Helvetica, sans-serif">$role</font>
2784: <br />
2785: <font size="2" face="Arial, Helvetica, sans-serif">$realm</font>
2786: </td>
2787: ENDROLE
1.224 raeburn 2788: my $titleinfo = '<font face="Arial, Helvetica, sans-serif" size="+3" color="'.
1.229 albertel 2789: $font.'"><b>'.$title.'</b></font>';
1.224 raeburn 2790: if ($customtitle) {
2791: $titleinfo = $customtitle;
1.235 raeburn 2792: }
2793:
1.258 albertel 2794: if ($env{'request.state'} eq 'construct') {
1.229 albertel 2795: my ($uname,$thisdisfn)=
1.258 albertel 2796: ($env{'request.filename'} =~ m|^/home/([^/]+)/public_html/(.*)|);
1.229 albertel 2797: my $formaction='/priv/'.$uname.'/'.$thisdisfn;
2798: $formaction=~s/\/+/\//g;
1.237 raeburn 2799: unless ($customtitle) { #this is for resources; directories have customtitle, and crumbs and select recent are created in lonpubdir.pm
2800: my $parentpath = '';
1.241 raeburn 2801: my $lastitem = '';
2802: if ($thisdisfn =~ m-(.+/)([^/]*)$-) {
1.235 raeburn 2803: $parentpath = $1;
1.241 raeburn 2804: $lastitem = $2;
2805: } else {
2806: $lastitem = $thisdisfn;
1.235 raeburn 2807: }
2808: $titleinfo = &Apache::loncommon::help_open_menu('','','','',3,'Authoring').
2809: '<font face="Arial, Helvetica, sans-serif"><b>Construction Space</b>:</font> '.
2810: '<form name="dirs" method="post" action="'.$formaction
2811: .'" target="_top"><tt><b>'
1.241 raeburn 2812: .&Apache::lonhtmlcommon::crumbs($uname.'/'.$parentpath,'_top','/priv','','+1',1)."<font size=\"+1\">$lastitem</font></b></tt><br />"
1.235 raeburn 2813: .&Apache::lonhtmlcommon::select_recent('construct','recent','this.form.action=this.form.recent.value;this.form.submit()')
2814: .'</form>'
2815: .&Apache::lonmenu::constspaceform();
1.229 albertel 2816:
1.235 raeburn 2817: }
2818: $forcereg=1;
2819: }
2820: my $titletable = '<table bgcolor="'.$pgbg.'" width="100%" border="0" '.
2821: 'cellspacing="3" cellpadding="3">'.
1.270 albertel 2822: '<tr><td bgcolor="'.$tabbg.'">'.
1.235 raeburn 2823: $titleinfo.'</td>'.$roleinfo.'</tr></table>';
1.258 albertel 2824: if ($env{'request.state'} eq 'construct') {
1.272 raeburn 2825: if ($notopbar) {
2826: $bodytag .= $titletable;
2827: } else {
2828: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,'web',$forcereg,$titletable);
2829: }
1.235 raeburn 2830: } else {
1.272 raeburn 2831: if ($notopbar) {
2832: $bodytag .= $titletable;
2833: } else {
2834: $bodytag .= &Apache::lonmenu::menubuttons($forcereg,'web',$forcereg).
1.235 raeburn 2835: $titletable;
1.272 raeburn 2836: }
1.235 raeburn 2837: }
2838: return $bodytag;
1.94 www 2839: }
1.95 www 2840:
1.93 www 2841: #
1.95 www 2842: # Top frame rendering, Remote is up
1.93 www 2843: #
1.224 raeburn 2844: my $titleinfo = ' <font size="5" face="Arial, Helvetica, sans-serif"><b>'.$title.'</b></font>';
2845: if ($customtitle) {
2846: $titleinfo = $customtitle;
2847: }
1.245 matthew 2848: #
2849: # Extra info if you are the DC
2850: my $dc_info = '';
1.258 albertel 2851: if ($env{'user.adv'} && exists($env{'user.role.dc./'.
2852: $env{'course.'.$env{'request.course.id'}.
1.245 matthew 2853: '.domain'}.'/'})) {
1.258 albertel 2854: my $cid = $env{'request.course.id'};
2855: $dc_info.= $cid.' '.$env{'course.'.$cid.'.internal.coursecode'};
1.245 matthew 2856: $dc_info = '('.$dc_info.')';
2857: }
2858: #
1.94 www 2859: return(<<ENDBODY);
1.60 matthew 2860: $bodytag
1.55 www 2861: <table width="100%" cellspacing="0" border="0" cellpadding="0">
1.95 www 2862: <tr><td bgcolor="$sidebg">
1.94 www 2863: $upperleft</td>
1.95 www 2864: <td bgcolor="$sidebg" align="right">$messages </td>
1.55 www 2865: </tr>
1.54 www 2866: <tr>
1.55 www 2867: <td rowspan="3" bgcolor="$tabbg">
1.245 matthew 2868: $titleinfo $dc_info
1.257 matthew 2869: </td><td bgcolor="$tabbg" align="right">
1.146 www 2870: <font size="2" face="Arial, Helvetica, sans-serif">
1.258 albertel 2871: $env{'environment.firstname'}
2872: $env{'environment.middlename'}
2873: $env{'environment.lastname'}
2874: $env{'environment.generation'}
1.55 www 2875: </font>
1.54 www 2876: </td>
2877: </tr>
2878: <tr><td bgcolor="$tabbg" align="right">
1.146 www 2879: <font size="2" face="Arial, Helvetica, sans-serif">$role</font>
1.54 www 2880: </td></tr>
1.55 www 2881: <tr>
1.148 www 2882: <td bgcolor="$tabbg" align="right"><font size="2" face="Arial, Helvetica, sans-serif">$realm</font> </td></tr>
1.202 albertel 2883: </table><br />
1.54 www 2884: ENDBODY
1.182 matthew 2885: }
2886:
2887: ###############################################
1.251 albertel 2888: ###############################################
2889:
2890: =pod
2891:
2892: =back
2893:
2894: =head1 HTTP Helpers
2895:
2896: =over 4
2897:
2898: =item * &endbodytag()
2899:
2900: Returns a uniform footer for LON-CAPA web pages.
2901:
2902: Inputs:
2903:
2904: =over 4
2905:
2906: =back
2907:
2908: Returns: A uniform footer for LON-CAPA web pages.
2909:
2910: =cut
2911:
2912: sub endbodytag {
2913: my $endbodytag='</body>';
1.269 albertel 2914: $endbodytag=&Apache::lontexconvert::jsMath_process()."\n".$endbodytag;
1.251 albertel 2915: return $endbodytag;
2916: }
2917:
2918: ###############################################
1.182 matthew 2919:
2920: =pod
2921:
2922: =item get_users_function
2923:
2924: Used by &bodytag to determine the current users primary role.
2925: Returns either 'student','coordinator','admin', or 'author'.
2926:
2927: =cut
2928:
2929: ###############################################
2930: sub get_users_function {
2931: my $function = 'student';
1.258 albertel 2932: if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
1.182 matthew 2933: $function='coordinator';
2934: }
1.258 albertel 2935: if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
1.182 matthew 2936: $function='admin';
2937: }
1.258 albertel 2938: if (($env{'request.role'}=~/^(au|ca)/) ||
1.182 matthew 2939: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
2940: $function='author';
2941: }
2942: return $function;
1.54 www 2943: }
1.99 www 2944:
2945: ###############################################
2946:
1.233 raeburn 2947: =pod
2948:
1.274 ! raeburn 2949: =item check_user_status
! 2950:
! 2951: Determines current status of supplied role for a
! 2952: specific user. Roles can be active, previous or future.
! 2953:
! 2954: Inputs:
! 2955: user's domain, user's username, course's domain,
! 2956: course's number, optional section/group.
! 2957:
! 2958: Outputs:
! 2959: role status: active, previous or future.
! 2960:
! 2961: =cut
! 2962:
! 2963: sub check_user_status {
! 2964: my ($udom,$uname,$cdom,$crs,$role,$secgrp) = @_;
! 2965: my %userinfo = &Apache::lonnet::dump('roles',$udom,$uname);
! 2966: my @uroles = keys %userinfo;
! 2967: my $srchstr;
! 2968: my $active_chk = 'none';
! 2969: if (@uroles > 0) {
! 2970: if (($role eq 'cc') || ($secgrp eq '') || (!defined($secgrp))) {
! 2971: $srchstr = '/'.$cdom.'/'.$crs.'_'.$role;
! 2972: } else {
! 2973: $srchstr = '/'.$cdom.'/'.$crs.'/'.$secgrp.'_'.$role; }
! 2974: if (grep/^$srchstr$/,@uroles) {
! 2975: my $role_end = 0;
! 2976: my $role_start = 0;
! 2977: $active_chk = 'active';
! 2978: if ($userinfo{$srchstr} =~ m/^($role)_(\d+)/) {
! 2979: $role_end = $2;
! 2980: if ($userinfo{$srchstr} =~ m/^($role)_($role_end)_(\d+)$/) {
! 2981: $role_start = $3;
! 2982: }
! 2983: }
! 2984: if ($role_start > 0) {
! 2985: if (time < $role_start) {
! 2986: $active_chk = 'future';
! 2987: }
! 2988: }
! 2989: if ($role_end > 0) {
! 2990: if (time > $role_end) {
! 2991: $active_chk = 'previous';
! 2992: }
! 2993: }
! 2994: }
! 2995: }
! 2996: return $active_chk;
! 2997: }
! 2998:
! 2999: ###############################################
! 3000:
! 3001: =pod
! 3002:
1.233 raeburn 3003: =item get_sections
3004:
3005: Determines all the sections for a course including
3006: sections with students and sections containing other roles.
3007: Incoming parameters: domain, course number, reference to
3008: section hash (keys to be section/group IDs), reference to
3009: array containing roles for which sections should be gathered
3010: (optional). If the fourth argument is undefined, sections
3011: are gathered for any role.
3012:
3013: Returns number of sections.
3014:
3015: =cut
3016:
3017: ###############################################
3018: sub get_sections {
3019: my ($cdom,$cnum,$sectioncount,$possible_roles) = @_;
1.240 albertel 3020: if (!($cdom && $cnum)) { return 0; }
1.233 raeburn 3021: my $cid = $cdom.'_'.$cnum;
3022: my $numsections = 0;
1.240 albertel 3023:
3024: if (!defined($possible_roles) || (grep/^st$/,@$possible_roles)) {
3025: my ($classlist) = &Apache::loncoursedata::get_classlist($cid,$cdom,$cnum);
3026: my $sec_index = &Apache::loncoursedata::CL_SECTION();
3027: my $status_index = &Apache::loncoursedata::CL_STATUS();
3028: while (my ($student,$data) = each %$classlist) {
3029: my ($section,$status) = ($data->[$sec_index],
3030: $data->[$status_index]);
3031: unless ($section eq '-1' || $section =~ /^\s*$/) {
3032: if (!defined($$sectioncount{$section})) { $numsections++; }
3033: $$sectioncount{$section}++;
3034: }
3035: }
3036: }
3037: my %courseroles = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
3038: foreach my $user (sort(keys(%courseroles))) {
3039: if ($user !~ /^(\w{2})/) { next; }
3040: my ($role) = ($user =~ /^(\w{2})/);
3041: if ($possible_roles && !(grep(/^$role$/,@$possible_roles))) { next; }
3042: my $section;
3043: if ($role eq 'cr' &&
3044: $user =~ m-^$role/[^/]*/[^/]*/[^/]*:[^:]*:[^:]*:(\w+)-) {
3045: $section=$1;
3046: }
3047: if ($user =~ /^$role:[^:]*:[^:]*:(\w+)/) { $section=$1; }
3048: if (!defined($section) || $section eq '-1') { next; }
3049: if (!defined($$sectioncount{$section})) { $numsections++; }
3050: $$sectioncount{$section}++;
1.233 raeburn 3051: }
3052: return $numsections;
3053: }
3054:
1.274 ! raeburn 3055: ###############################################
! 3056:
1.233 raeburn 3057:
1.99 www 3058: sub get_posted_cgi {
3059: my $r=shift;
3060:
3061: my $buffer;
1.260 albertel 3062: if ($r->header_in('Content-length')) {
3063: $r->read($buffer,$r->header_in('Content-length'),0);
3064: }
1.99 www 3065: unless ($buffer=~/^(\-+\w+)\s+Content\-Disposition\:\s*form\-data/si) {
3066: my @pairs=split(/&/,$buffer);
3067: my $pair;
3068: foreach $pair (@pairs) {
3069: my ($name,$value) = split(/=/,$pair);
3070: $value =~ tr/+/ /;
3071: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
3072: $name =~ tr/+/ /;
3073: $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
3074: &add_to_env("form.$name",$value);
3075: }
3076: } else {
3077: my $contentsep=$1;
3078: my @lines = split (/\n/,$buffer);
3079: my $name='';
3080: my $value='';
3081: my $fname='';
3082: my $fmime='';
3083: my $i;
3084: for ($i=0;$i<=$#lines;$i++) {
3085: if ($lines[$i]=~/^$contentsep/) {
3086: if ($name) {
3087: chomp($value);
3088: if ($fname) {
1.258 albertel 3089: $env{"form.$name.filename"}=$fname;
3090: $env{"form.$name.mimetype"}=$fmime;
1.99 www 3091: } else {
3092: $value=~s/\s+$//s;
3093: }
3094: &add_to_env("form.$name",$value);
3095: }
3096: if ($i<$#lines) {
3097: $i++;
3098: $lines[$i]=~
3099: /Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i;
3100: $name=$1;
3101: $value='';
3102: if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) {
3103: $fname=$1;
3104: if
3105: ($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) {
3106: $fmime=$1;
3107: $i++;
3108: } else {
3109: $fmime='';
3110: }
3111: } else {
3112: $fname='';
3113: $fmime='';
3114: }
3115: $i++;
3116: }
3117: } else {
3118: $value.=$lines[$i]."\n";
3119: }
3120: }
3121: }
1.258 albertel 3122: $env{'request.method'}=$ENV{'REQUEST_METHOD'};
1.99 www 3123: $r->method_number(M_GET);
3124: $r->method('GET');
3125: $r->headers_in->unset('Content-length');
3126: }
3127:
1.112 bowersj2 3128: =pod
3129:
3130: =item * get_unprocessed_cgi($query,$possible_names)
3131:
1.258 albertel 3132: Modify the %env hash to contain unprocessed CGI form parameters held in
1.112 bowersj2 3133: $query. The parameters listed in $possible_names (an array reference),
1.258 albertel 3134: will be set in $env{'form.name'} if they do not already exist.
1.112 bowersj2 3135:
3136: Typically called with $ENV{'QUERY_STRING'} as the first parameter.
3137: $possible_names is an ref to an array of form element names. As an example:
3138: get_unprocessed_cgi($ENV{'QUERY_STRING'},['uname','udom']);
1.258 albertel 3139: will result in $env{'form.uname'} and $env{'form.udom'} being set.
1.112 bowersj2 3140:
3141: =cut
1.1 albertel 3142:
1.6 albertel 3143: sub get_unprocessed_cgi {
1.25 albertel 3144: my ($query,$possible_names)= @_;
1.26 matthew 3145: # $Apache::lonxml::debug=1;
1.16 harris41 3146: foreach (split(/&/,$query)) {
1.6 albertel 3147: my ($name, $value) = split(/=/,$_);
1.25 albertel 3148: $name = &Apache::lonnet::unescape($name);
3149: if (!defined($possible_names) || (grep {$_ eq $name} @$possible_names)) {
3150: $value =~ tr/+/ /;
3151: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.258 albertel 3152: unless (defined($env{'form.'.$name})) { &add_to_env('form.'.$name,$value) };
1.25 albertel 3153: }
1.16 harris41 3154: }
1.6 albertel 3155: }
3156:
1.112 bowersj2 3157: =pod
3158:
3159: =item * cacheheader()
3160:
3161: returns cache-controlling header code
3162:
3163: =cut
3164:
1.7 albertel 3165: sub cacheheader {
1.258 albertel 3166: unless ($env{'request.method'} eq 'GET') { return ''; }
1.216 albertel 3167: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime);
3168: my $output .='<meta HTTP-EQUIV="Expires" CONTENT="'.$date.'" />
1.7 albertel 3169: <meta HTTP-EQUIV="Cache-control" CONTENT="no-cache" />
3170: <meta HTTP-EQUIV="Pragma" CONTENT="no-cache" />';
1.216 albertel 3171: return $output;
1.7 albertel 3172: }
3173:
1.112 bowersj2 3174: =pod
3175:
3176: =item * no_cache($r)
3177:
3178: specifies header code to not have cache
3179:
3180: =cut
3181:
1.9 albertel 3182: sub no_cache {
1.216 albertel 3183: my ($r) = @_;
3184: if ($ENV{'REQUEST_METHOD'} ne 'GET' &&
1.258 albertel 3185: $env{'request.method'} ne 'GET') { return ''; }
1.216 albertel 3186: my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime(time));
3187: $r->no_cache(1);
3188: $r->header_out("Expires" => $date);
3189: $r->header_out("Pragma" => "no-cache");
1.123 www 3190: }
3191:
3192: sub content_type {
1.181 albertel 3193: my ($r,$type,$charset) = @_;
1.258 albertel 3194: if ($env{'browser.mathml'} && $type eq 'text/html') { $type='text/xml'; }
1.181 albertel 3195: unless ($charset) {
3196: $charset=&Apache::lonlocal::current_encoding;
3197: }
3198: if ($charset) { $type.='; charset='.$charset; }
3199: if ($r) {
3200: $r->content_type($type);
3201: } else {
3202: print("Content-type: $type\n\n");
3203: }
1.9 albertel 3204: }
1.25 albertel 3205:
1.112 bowersj2 3206: =pod
3207:
3208: =item * add_to_env($name,$value)
3209:
1.258 albertel 3210: adds $name to the %env hash with value
1.112 bowersj2 3211: $value, if $name already exists, the entry is converted to an array
3212: reference and $value is added to the array.
3213:
3214: =cut
3215:
1.25 albertel 3216: sub add_to_env {
3217: my ($name,$value)=@_;
1.258 albertel 3218: if (defined($env{$name})) {
3219: if (ref($env{$name})) {
1.25 albertel 3220: #already have multiple values
1.258 albertel 3221: push(@{ $env{$name} },$value);
1.25 albertel 3222: } else {
3223: #first time seeing multiple values, convert hash entry to an arrayref
1.258 albertel 3224: my $first=$env{$name};
3225: undef($env{$name});
3226: push(@{ $env{$name} },$first,$value);
1.25 albertel 3227: }
3228: } else {
1.258 albertel 3229: $env{$name}=$value;
1.25 albertel 3230: }
1.31 albertel 3231: }
1.149 albertel 3232:
3233: =pod
3234:
3235: =item * get_env_multiple($name)
3236:
1.258 albertel 3237: gets $name from the %env hash, it seemlessly handles the cases where multiple
1.149 albertel 3238: values may be defined and end up as an array ref.
3239:
3240: returns an array of values
3241:
3242: =cut
3243:
3244: sub get_env_multiple {
3245: my ($name) = @_;
3246: my @values;
1.258 albertel 3247: if (defined($env{$name})) {
1.149 albertel 3248: # exists is it an array
1.258 albertel 3249: if (ref($env{$name})) {
3250: @values=@{ $env{$name} };
1.149 albertel 3251: } else {
1.258 albertel 3252: $values[0]=$env{$name};
1.149 albertel 3253: }
3254: }
3255: return(@values);
3256: }
3257:
1.31 albertel 3258:
1.41 ng 3259: =pod
1.45 matthew 3260:
3261: =back
1.41 ng 3262:
1.112 bowersj2 3263: =head1 CSV Upload/Handling functions
1.38 albertel 3264:
1.41 ng 3265: =over 4
3266:
1.112 bowersj2 3267: =item * upfile_store($r)
1.41 ng 3268:
3269: Store uploaded file, $r should be the HTTP Request object,
1.258 albertel 3270: needs $env{'form.upfile'}
1.41 ng 3271: returns $datatoken to be put into hidden field
3272:
3273: =cut
1.31 albertel 3274:
3275: sub upfile_store {
3276: my $r=shift;
1.258 albertel 3277: $env{'form.upfile'}=~s/\r/\n/gs;
3278: $env{'form.upfile'}=~s/\f/\n/gs;
3279: $env{'form.upfile'}=~s/\n+/\n/gs;
3280: $env{'form.upfile'}=~s/\n+$//gs;
1.31 albertel 3281:
1.258 albertel 3282: my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
3283: '_enroll_'.$env{'request.course.id'}.'_'.time.'_'.$$;
1.31 albertel 3284: {
1.158 raeburn 3285: my $datafile = $r->dir_config('lonDaemons').
3286: '/tmp/'.$datatoken.'.tmp';
3287: if ( open(my $fh,">$datafile") ) {
1.258 albertel 3288: print $fh $env{'form.upfile'};
1.158 raeburn 3289: close($fh);
3290: }
1.31 albertel 3291: }
3292: return $datatoken;
3293: }
3294:
1.56 matthew 3295: =pod
3296:
1.112 bowersj2 3297: =item * load_tmp_file($r)
1.41 ng 3298:
3299: Load uploaded file from tmp, $r should be the HTTP Request object,
1.258 albertel 3300: needs $env{'form.datatoken'},
3301: sets $env{'form.upfile'} to the contents of the file
1.41 ng 3302:
3303: =cut
1.31 albertel 3304:
3305: sub load_tmp_file {
3306: my $r=shift;
3307: my @studentdata=();
3308: {
1.158 raeburn 3309: my $studentfile = $r->dir_config('lonDaemons').
1.258 albertel 3310: '/tmp/'.$env{'form.datatoken'}.'.tmp';
1.158 raeburn 3311: if ( open(my $fh,"<$studentfile") ) {
3312: @studentdata=<$fh>;
3313: close($fh);
3314: }
1.31 albertel 3315: }
1.258 albertel 3316: $env{'form.upfile'}=join('',@studentdata);
1.31 albertel 3317: }
3318:
1.56 matthew 3319: =pod
3320:
1.112 bowersj2 3321: =item * upfile_record_sep()
1.41 ng 3322:
3323: Separate uploaded file into records
3324: returns array of records,
1.258 albertel 3325: needs $env{'form.upfile'} and $env{'form.upfiletype'}
1.41 ng 3326:
3327: =cut
1.31 albertel 3328:
3329: sub upfile_record_sep {
1.258 albertel 3330: if ($env{'form.upfiletype'} eq 'xml') {
1.31 albertel 3331: } else {
1.248 albertel 3332: my @records;
1.258 albertel 3333: foreach my $line (split(/\n/,$env{'form.upfile'})) {
1.248 albertel 3334: if ($line=~/^\s*$/) { next; }
3335: push(@records,$line);
3336: }
3337: return @records;
1.31 albertel 3338: }
3339: }
3340:
1.56 matthew 3341: =pod
3342:
1.112 bowersj2 3343: =item * record_sep($record)
1.41 ng 3344:
1.258 albertel 3345: Separate a record into fields $record should be an item from the upfile_record_sep(), needs $env{'form.upfiletype'}
1.41 ng 3346:
3347: =cut
3348:
1.263 www 3349: sub takeleft {
3350: my $index=shift;
3351: return substr('0000'.$index,-4,4);
3352: }
3353:
1.31 albertel 3354: sub record_sep {
3355: my $record=shift;
3356: my %components=();
1.258 albertel 3357: if ($env{'form.upfiletype'} eq 'xml') {
3358: } elsif ($env{'form.upfiletype'} eq 'space') {
1.31 albertel 3359: my $i=0;
3360: foreach (split(/\s+/,$record)) {
3361: my $field=$_;
3362: $field=~s/^(\"|\')//;
3363: $field=~s/(\"|\')$//;
1.263 www 3364: $components{&takeleft($i)}=$field;
1.31 albertel 3365: $i++;
3366: }
1.258 albertel 3367: } elsif ($env{'form.upfiletype'} eq 'tab') {
1.31 albertel 3368: my $i=0;
1.171 matthew 3369: foreach (split(/\t/,$record)) {
1.31 albertel 3370: my $field=$_;
3371: $field=~s/^(\"|\')//;
3372: $field=~s/(\"|\')$//;
1.263 www 3373: $components{&takeleft($i)}=$field;
1.31 albertel 3374: $i++;
3375: }
3376: } else {
3377: my @allfields=split(/\,/,$record);
3378: my $i=0;
3379: my $j;
3380: for ($j=0;$j<=$#allfields;$j++) {
3381: my $field=$allfields[$j];
3382: if ($field=~/^\s*(\"|\')/) {
3383: my $delimiter=$1;
3384: while (($field!~/$delimiter$/) && ($j<$#allfields)) {
3385: $j++;
3386: $field.=','.$allfields[$j];
3387: }
3388: $field=~s/^\s*$delimiter//;
3389: $field=~s/$delimiter\s*$//;
3390: }
1.263 www 3391: $components{&takeleft($i)}=$field;
1.31 albertel 3392: $i++;
3393: }
3394: }
3395: return %components;
3396: }
3397:
1.144 matthew 3398: ######################################################
3399: ######################################################
3400:
1.56 matthew 3401: =pod
3402:
1.112 bowersj2 3403: =item * upfile_select_html()
1.41 ng 3404:
1.144 matthew 3405: Return HTML code to select a file from the users machine and specify
3406: the file type.
1.41 ng 3407:
3408: =cut
3409:
1.144 matthew 3410: ######################################################
3411: ######################################################
1.31 albertel 3412: sub upfile_select_html {
1.144 matthew 3413: my %Types = (
3414: csv => &mt('CSV (comma separated values, spreadsheet)'),
3415: space => &mt('Space separated'),
3416: tab => &mt('Tabulator separated'),
3417: # xml => &mt('HTML/XML'),
3418: );
3419: my $Str = '<input type="file" name="upfile" size="50" />'.
3420: '<br />Type: <select name="upfiletype">';
3421: foreach my $type (sort(keys(%Types))) {
3422: $Str .= '<option value="'.$type.'" >'.$Types{$type}."</option>\n";
3423: }
3424: $Str .= "</select>\n";
3425: return $Str;
1.31 albertel 3426: }
3427:
1.144 matthew 3428: ######################################################
3429: ######################################################
3430:
1.56 matthew 3431: =pod
3432:
1.112 bowersj2 3433: =item * csv_print_samples($r,$records)
1.41 ng 3434:
3435: Prints a table of sample values from each column uploaded $r is an
3436: Apache Request ref, $records is an arrayref from
3437: &Apache::loncommon::upfile_record_sep
3438:
3439: =cut
3440:
1.144 matthew 3441: ######################################################
3442: ######################################################
1.31 albertel 3443: sub csv_print_samples {
3444: my ($r,$records) = @_;
3445: my (%sone,%stwo,%sthree);
3446: %sone=&record_sep($$records[0]);
3447: if (defined($$records[1])) {%stwo=&record_sep($$records[1]);}
3448: if (defined($$records[2])) {%sthree=&record_sep($$records[2]);}
1.144 matthew 3449: #
3450: $r->print(&mt('Samples').'<br /><table border="2"><tr>');
3451: foreach (sort({$a <=> $b} keys(%sone))) {
3452: $r->print('<th>'.&mt('Column [_1]',($_+1)).'</th>'); }
1.31 albertel 3453: $r->print('</tr>');
3454: foreach my $hash (\%sone,\%stwo,\%sthree) {
3455: $r->print('<tr>');
3456: foreach (sort({$a <=> $b} keys(%sone))) {
3457: $r->print('<td>');
3458: if (defined($$hash{$_})) { $r->print($$hash{$_}); }
3459: $r->print('</td>');
3460: }
3461: $r->print('</tr>');
3462: }
3463: $r->print('</tr></table><br />'."\n");
3464: }
3465:
1.144 matthew 3466: ######################################################
3467: ######################################################
3468:
1.56 matthew 3469: =pod
3470:
1.112 bowersj2 3471: =item * csv_print_select_table($r,$records,$d)
1.41 ng 3472:
3473: Prints a table to create associations between values and table columns.
1.144 matthew 3474:
1.41 ng 3475: $r is an Apache Request ref,
3476: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
1.174 matthew 3477: $d is an array of 2 element arrays (internal name, displayed name,defaultcol)
1.41 ng 3478:
3479: =cut
3480:
1.144 matthew 3481: ######################################################
3482: ######################################################
1.31 albertel 3483: sub csv_print_select_table {
3484: my ($r,$records,$d) = @_;
3485: my $i=0;my %sone;
3486: %sone=&record_sep($$records[0]);
1.144 matthew 3487: $r->print(&mt('Associate columns with student attributes.')."\n".
3488: '<table border="2"><tr>'.
3489: '<th>'.&mt('Attribute').'</th>'.
3490: '<th>'.&mt('Column').'</th></tr>'."\n");
1.31 albertel 3491: foreach (@$d) {
1.174 matthew 3492: my ($value,$display,$defaultcol)=@{ $_ };
1.31 albertel 3493: $r->print('<tr><td>'.$display.'</td>');
3494:
3495: $r->print('<td><select name=f'.$i.
1.32 matthew 3496: ' onchange="javascript:flip(this.form,'.$i.');">');
1.31 albertel 3497: $r->print('<option value="none"></option>');
3498: foreach (sort({$a <=> $b} keys(%sone))) {
1.174 matthew 3499: $r->print('<option value="'.$_.'"'.
1.253 albertel 3500: ($_ eq $defaultcol ? ' selected="selected" ' : '').
1.174 matthew 3501: '>Column '.($_+1).'</option>');
1.31 albertel 3502: }
3503: $r->print('</select></td></tr>'."\n");
3504: $i++;
3505: }
3506: $i--;
3507: return $i;
3508: }
1.56 matthew 3509:
1.144 matthew 3510: ######################################################
3511: ######################################################
3512:
1.56 matthew 3513: =pod
1.31 albertel 3514:
1.112 bowersj2 3515: =item * csv_samples_select_table($r,$records,$d)
1.41 ng 3516:
3517: Prints a table of sample values from the upload and can make associate samples to internal names.
3518:
3519: $r is an Apache Request ref,
3520: $records is an arrayref from &Apache::loncommon::upfile_record_sep,
3521: $d is an array of 2 element arrays (internal name, displayed name)
3522:
3523: =cut
3524:
1.144 matthew 3525: ######################################################
3526: ######################################################
1.31 albertel 3527: sub csv_samples_select_table {
3528: my ($r,$records,$d) = @_;
3529: my %sone; my %stwo; my %sthree;
3530: my $i=0;
1.144 matthew 3531: #
3532: $r->print('<table border=2><tr><th>'.
3533: &mt('Field').'</th><th>'.&mt('Samples').'</th></tr>');
1.31 albertel 3534: %sone=&record_sep($$records[0]);
3535: if (defined($$records[1])) {%stwo=&record_sep($$records[1]);}
3536: if (defined($$records[2])) {%sthree=&record_sep($$records[2]);}
1.144 matthew 3537: #
1.31 albertel 3538: foreach (sort keys %sone) {
1.144 matthew 3539: $r->print('<tr><td><select name="f'.$i.'"'.
1.32 matthew 3540: ' onchange="javascript:flip(this.form,'.$i.');">');
1.31 albertel 3541: foreach (@$d) {
1.174 matthew 3542: my ($value,$display,$defaultcol)=@{ $_ };
3543: $r->print('<option value="'.$value.'"'.
1.253 albertel 3544: ($i eq $defaultcol ? ' selected="selected" ':'').'>'.
1.174 matthew 3545: $display.'</option>');
1.31 albertel 3546: }
3547: $r->print('</select></td><td>');
1.263 www 3548: if (defined($sone{$_})) { $r->print($sone{$_}."<br />\n"); }
3549: if (defined($stwo{$_})) { $r->print($stwo{$_}."<br />\n"); }
3550: if (defined($sthree{$_})) { $r->print($sthree{$_}."<br />\n"); }
1.31 albertel 3551: $r->print('</td></tr>');
3552: $i++;
3553: }
3554: $i--;
3555: return($i);
1.115 matthew 3556: }
3557:
1.144 matthew 3558: ######################################################
3559: ######################################################
3560:
1.115 matthew 3561: =pod
3562:
3563: =item clean_excel_name($name)
3564:
3565: Returns a replacement for $name which does not contain any illegal characters.
3566:
3567: =cut
3568:
1.144 matthew 3569: ######################################################
3570: ######################################################
1.115 matthew 3571: sub clean_excel_name {
3572: my ($name) = @_;
3573: $name =~ s/[:\*\?\/\\]//g;
3574: if (length($name) > 31) {
3575: $name = substr($name,0,31);
3576: }
3577: return $name;
1.25 albertel 3578: }
1.84 albertel 3579:
1.85 albertel 3580: =pod
3581:
1.112 bowersj2 3582: =item * check_if_partid_hidden($id,$symb,$udom,$uname)
1.85 albertel 3583:
3584: Returns either 1 or undef
3585:
3586: 1 if the part is to be hidden, undef if it is to be shown
3587:
3588: Arguments are:
3589:
3590: $id the id of the part to be checked
3591: $symb, optional the symb of the resource to check
3592: $udom, optional the domain of the user to check for
3593: $uname, optional the username of the user to check for
3594:
3595: =cut
1.84 albertel 3596:
3597: sub check_if_partid_hidden {
3598: my ($id,$symb,$udom,$uname) = @_;
1.133 albertel 3599: my $hiddenparts=&Apache::lonnet::EXT('resource.0.hiddenparts',
1.84 albertel 3600: $symb,$udom,$uname);
1.141 albertel 3601: my $truth=1;
3602: #if the string starts with !, then the list is the list to show not hide
3603: if ($hiddenparts=~s/^\s*!//) { $truth=undef; }
1.84 albertel 3604: my @hiddenlist=split(/,/,$hiddenparts);
3605: foreach my $checkid (@hiddenlist) {
1.141 albertel 3606: if ($checkid =~ /^\s*\Q$id\E\s*$/) { return $truth; }
1.84 albertel 3607: }
1.141 albertel 3608: return !$truth;
1.84 albertel 3609: }
1.127 matthew 3610:
1.138 matthew 3611:
3612: ############################################################
3613: ############################################################
3614:
3615: =pod
3616:
1.157 matthew 3617: =back
3618:
1.138 matthew 3619: =head1 cgi-bin script and graphing routines
3620:
1.157 matthew 3621: =over 4
3622:
1.138 matthew 3623: =item get_cgi_id
3624:
3625: Inputs: none
3626:
3627: Returns an id which can be used to pass environment variables
3628: to various cgi-bin scripts. These environment variables will
3629: be removed from the users environment after a given time by
3630: the routine &Apache::lonnet::transfer_profile_to_env.
3631:
3632: =cut
3633:
3634: ############################################################
3635: ############################################################
1.152 albertel 3636: my $uniq=0;
1.136 matthew 3637: sub get_cgi_id {
1.154 albertel 3638: $uniq=($uniq+1)%100000;
1.152 albertel 3639: return (time.'_'.$uniq);
1.136 matthew 3640: }
3641:
1.127 matthew 3642: ############################################################
3643: ############################################################
3644:
3645: =pod
3646:
1.134 matthew 3647: =item DrawBarGraph
1.127 matthew 3648:
1.138 matthew 3649: Facilitates the plotting of data in a (stacked) bar graph.
3650: Puts plot definition data into the users environment in order for
3651: graph.png to plot it. Returns an <img> tag for the plot.
3652: The bars on the plot are labeled '1','2',...,'n'.
3653:
3654: Inputs:
3655:
3656: =over 4
3657:
3658: =item $Title: string, the title of the plot
3659:
3660: =item $xlabel: string, text describing the X-axis of the plot
3661:
3662: =item $ylabel: string, text describing the Y-axis of the plot
3663:
3664: =item $Max: scalar, the maximum Y value to use in the plot
3665: If $Max is < any data point, the graph will not be rendered.
3666:
1.140 matthew 3667: =item $colors: array ref holding the colors to be used for the data sets when
1.138 matthew 3668: they are plotted. If undefined, default values will be used.
3669:
1.178 matthew 3670: =item $labels: array ref holding the labels to use on the x-axis for the bars.
3671:
1.138 matthew 3672: =item @Values: An array of array references. Each array reference holds data
3673: to be plotted in a stacked bar chart.
3674:
1.239 matthew 3675: =item If the final element of @Values is a hash reference the key/value
3676: pairs will be added to the graph definition.
3677:
1.138 matthew 3678: =back
3679:
3680: Returns:
3681:
3682: An <img> tag which references graph.png and the appropriate identifying
3683: information for the plot.
3684:
1.127 matthew 3685: =cut
3686:
3687: ############################################################
3688: ############################################################
1.134 matthew 3689: sub DrawBarGraph {
1.178 matthew 3690: my ($Title,$xlabel,$ylabel,$Max,$colors,$labels,@Values)=@_;
1.134 matthew 3691: #
3692: if (! defined($colors)) {
3693: $colors = ['#33ff00',
3694: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
3695: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
3696: ];
3697: }
1.228 matthew 3698: my $extra_settings = {};
3699: if (ref($Values[-1]) eq 'HASH') {
3700: $extra_settings = pop(@Values);
3701: }
1.127 matthew 3702: #
1.136 matthew 3703: my $identifier = &get_cgi_id();
3704: my $id = 'cgi.'.$identifier;
1.129 matthew 3705: if (! @Values || ref($Values[0]) ne 'ARRAY') {
1.127 matthew 3706: return '';
3707: }
1.225 matthew 3708: #
3709: my @Labels;
3710: if (defined($labels)) {
3711: @Labels = @$labels;
3712: } else {
3713: for (my $i=0;$i<@{$Values[0]};$i++) {
3714: push (@Labels,$i+1);
3715: }
3716: }
3717: #
1.129 matthew 3718: my $NumBars = scalar(@{$Values[0]});
1.225 matthew 3719: if ($NumBars < scalar(@Labels)) { $NumBars = scalar(@Labels); }
1.129 matthew 3720: my %ValuesHash;
3721: my $NumSets=1;
3722: foreach my $array (@Values) {
3723: next if (! ref($array));
1.136 matthew 3724: $ValuesHash{$id.'.data.'.$NumSets++} =
1.132 matthew 3725: join(',',@$array);
1.129 matthew 3726: }
1.127 matthew 3727: #
1.136 matthew 3728: my ($height,$width,$xskip,$bar_width) = (200,120,1,15);
1.225 matthew 3729: if ($NumBars < 3) {
3730: $width = 120+$NumBars*32;
1.220 matthew 3731: $xskip = 1;
1.225 matthew 3732: $bar_width = 30;
3733: } elsif ($NumBars < 5) {
3734: $width = 120+$NumBars*20;
3735: $xskip = 1;
3736: $bar_width = 20;
1.220 matthew 3737: } elsif ($NumBars < 10) {
1.136 matthew 3738: $width = 120+$NumBars*15;
3739: $xskip = 1;
3740: $bar_width = 15;
3741: } elsif ($NumBars <= 25) {
3742: $width = 120+$NumBars*11;
3743: $xskip = 5;
3744: $bar_width = 8;
3745: } elsif ($NumBars <= 50) {
3746: $width = 120+$NumBars*8;
3747: $xskip = 5;
3748: $bar_width = 4;
3749: } else {
3750: $width = 120+$NumBars*8;
3751: $xskip = 5;
3752: $bar_width = 4;
3753: }
3754: #
1.137 matthew 3755: $Max = 1 if ($Max < 1);
3756: if ( int($Max) < $Max ) {
3757: $Max++;
3758: $Max = int($Max);
3759: }
1.127 matthew 3760: $Title = '' if (! defined($Title));
3761: $xlabel = '' if (! defined($xlabel));
3762: $ylabel = '' if (! defined($ylabel));
1.136 matthew 3763: $ValuesHash{$id.'.title'} = &Apache::lonnet::escape($Title);
3764: $ValuesHash{$id.'.xlabel'} = &Apache::lonnet::escape($xlabel);
3765: $ValuesHash{$id.'.ylabel'} = &Apache::lonnet::escape($ylabel);
1.137 matthew 3766: $ValuesHash{$id.'.y_max_value'} = $Max;
1.136 matthew 3767: $ValuesHash{$id.'.NumBars'} = $NumBars;
3768: $ValuesHash{$id.'.NumSets'} = $NumSets;
3769: $ValuesHash{$id.'.PlotType'} = 'bar';
3770: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
3771: $ValuesHash{$id.'.height'} = $height;
3772: $ValuesHash{$id.'.width'} = $width;
3773: $ValuesHash{$id.'.xskip'} = $xskip;
3774: $ValuesHash{$id.'.bar_width'} = $bar_width;
3775: $ValuesHash{$id.'.labels'} = join(',',@Labels);
1.127 matthew 3776: #
1.228 matthew 3777: # Deal with other parameters
3778: while (my ($key,$value) = each(%$extra_settings)) {
3779: $ValuesHash{$id.'.'.$key} = $value;
3780: }
3781: #
1.137 matthew 3782: &Apache::lonnet::appenv(%ValuesHash);
3783: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
3784: }
3785:
3786: ############################################################
3787: ############################################################
3788:
3789: =pod
3790:
3791: =item DrawXYGraph
3792:
1.138 matthew 3793: Facilitates the plotting of data in an XY graph.
3794: Puts plot definition data into the users environment in order for
3795: graph.png to plot it. Returns an <img> tag for the plot.
3796:
3797: Inputs:
3798:
3799: =over 4
3800:
3801: =item $Title: string, the title of the plot
3802:
3803: =item $xlabel: string, text describing the X-axis of the plot
3804:
3805: =item $ylabel: string, text describing the Y-axis of the plot
3806:
3807: =item $Max: scalar, the maximum Y value to use in the plot
3808: If $Max is < any data point, the graph will not be rendered.
3809:
3810: =item $colors: Array ref containing the hex color codes for the data to be
3811: plotted in. If undefined, default values will be used.
3812:
3813: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
3814:
3815: =item $Ydata: Array ref containing Array refs.
1.185 www 3816: Each of the contained arrays will be plotted as a separate curve.
1.138 matthew 3817:
3818: =item %Values: hash indicating or overriding any default values which are
3819: passed to graph.png.
3820: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
3821:
3822: =back
3823:
3824: Returns:
3825:
3826: An <img> tag which references graph.png and the appropriate identifying
3827: information for the plot.
3828:
1.137 matthew 3829: =cut
3830:
3831: ############################################################
3832: ############################################################
3833: sub DrawXYGraph {
3834: my ($Title,$xlabel,$ylabel,$Max,$colors,$Xlabels,$Ydata,%Values)=@_;
3835: #
3836: # Create the identifier for the graph
3837: my $identifier = &get_cgi_id();
3838: my $id = 'cgi.'.$identifier;
3839: #
3840: $Title = '' if (! defined($Title));
3841: $xlabel = '' if (! defined($xlabel));
3842: $ylabel = '' if (! defined($ylabel));
3843: my %ValuesHash =
3844: (
3845: $id.'.title' => &Apache::lonnet::escape($Title),
3846: $id.'.xlabel' => &Apache::lonnet::escape($xlabel),
3847: $id.'.ylabel' => &Apache::lonnet::escape($ylabel),
3848: $id.'.y_max_value'=> $Max,
3849: $id.'.labels' => join(',',@$Xlabels),
3850: $id.'.PlotType' => 'XY',
3851: );
3852: #
3853: if (defined($colors) && ref($colors) eq 'ARRAY') {
3854: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
3855: }
3856: #
3857: if (! ref($Ydata) || ref($Ydata) ne 'ARRAY') {
3858: return '';
3859: }
3860: my $NumSets=1;
1.138 matthew 3861: foreach my $array (@{$Ydata}){
1.137 matthew 3862: next if (! ref($array));
3863: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
3864: }
1.138 matthew 3865: $ValuesHash{$id.'.NumSets'} = $NumSets-1;
1.137 matthew 3866: #
3867: # Deal with other parameters
3868: while (my ($key,$value) = each(%Values)) {
3869: $ValuesHash{$id.'.'.$key} = $value;
1.127 matthew 3870: }
3871: #
1.136 matthew 3872: &Apache::lonnet::appenv(%ValuesHash);
3873: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
3874: }
3875:
3876: ############################################################
3877: ############################################################
3878:
3879: =pod
3880:
1.138 matthew 3881: =item DrawXYYGraph
3882:
3883: Facilitates the plotting of data in an XY graph with two Y axes.
3884: Puts plot definition data into the users environment in order for
3885: graph.png to plot it. Returns an <img> tag for the plot.
3886:
3887: Inputs:
3888:
3889: =over 4
3890:
3891: =item $Title: string, the title of the plot
3892:
3893: =item $xlabel: string, text describing the X-axis of the plot
3894:
3895: =item $ylabel: string, text describing the Y-axis of the plot
3896:
3897: =item $colors: Array ref containing the hex color codes for the data to be
3898: plotted in. If undefined, default values will be used.
3899:
3900: =item $Xlabels: Array ref containing the labels to be used for the X-axis.
3901:
3902: =item $Ydata1: The first data set
3903:
3904: =item $Min1: The minimum value of the left Y-axis
3905:
3906: =item $Max1: The maximum value of the left Y-axis
3907:
3908: =item $Ydata2: The second data set
3909:
3910: =item $Min2: The minimum value of the right Y-axis
3911:
3912: =item $Max2: The maximum value of the left Y-axis
3913:
3914: =item %Values: hash indicating or overriding any default values which are
3915: passed to graph.png.
3916: Possible values are: width, xskip, x_ticks, x_tick_offset, among others.
3917:
3918: =back
3919:
3920: Returns:
3921:
3922: An <img> tag which references graph.png and the appropriate identifying
3923: information for the plot.
1.136 matthew 3924:
3925: =cut
3926:
3927: ############################################################
3928: ############################################################
1.137 matthew 3929: sub DrawXYYGraph {
3930: my ($Title,$xlabel,$ylabel,$colors,$Xlabels,$Ydata1,$Min1,$Max1,
3931: $Ydata2,$Min2,$Max2,%Values)=@_;
1.136 matthew 3932: #
3933: # Create the identifier for the graph
3934: my $identifier = &get_cgi_id();
3935: my $id = 'cgi.'.$identifier;
3936: #
3937: $Title = '' if (! defined($Title));
3938: $xlabel = '' if (! defined($xlabel));
3939: $ylabel = '' if (! defined($ylabel));
3940: my %ValuesHash =
3941: (
3942: $id.'.title' => &Apache::lonnet::escape($Title),
3943: $id.'.xlabel' => &Apache::lonnet::escape($xlabel),
3944: $id.'.ylabel' => &Apache::lonnet::escape($ylabel),
3945: $id.'.labels' => join(',',@$Xlabels),
3946: $id.'.PlotType' => 'XY',
3947: $id.'.NumSets' => 2,
1.137 matthew 3948: $id.'.two_axes' => 1,
3949: $id.'.y1_max_value' => $Max1,
3950: $id.'.y1_min_value' => $Min1,
3951: $id.'.y2_max_value' => $Max2,
3952: $id.'.y2_min_value' => $Min2,
1.136 matthew 3953: );
3954: #
1.137 matthew 3955: if (defined($colors) && ref($colors) eq 'ARRAY') {
3956: $ValuesHash{$id.'.Colors'} = join(',',@{$colors});
3957: }
3958: #
3959: if (! ref($Ydata1) || ref($Ydata1) ne 'ARRAY' ||
3960: ! ref($Ydata2) || ref($Ydata2) ne 'ARRAY'){
1.136 matthew 3961: return '';
3962: }
3963: my $NumSets=1;
1.137 matthew 3964: foreach my $array ($Ydata1,$Ydata2){
1.136 matthew 3965: next if (! ref($array));
3966: $ValuesHash{$id.'.data.'.$NumSets++} = join(',',@$array);
1.137 matthew 3967: }
3968: #
3969: # Deal with other parameters
3970: while (my ($key,$value) = each(%Values)) {
3971: $ValuesHash{$id.'.'.$key} = $value;
1.136 matthew 3972: }
3973: #
3974: &Apache::lonnet::appenv(%ValuesHash);
1.130 albertel 3975: return '<img src="/cgi-bin/graph.png?'.$identifier.'" border="1" />';
1.139 matthew 3976: }
3977:
3978: ############################################################
3979: ############################################################
3980:
3981: =pod
3982:
1.157 matthew 3983: =back
3984:
1.139 matthew 3985: =head1 Statistics helper routines?
3986:
3987: Bad place for them but what the hell.
3988:
1.157 matthew 3989: =over 4
3990:
1.139 matthew 3991: =item &chartlink
3992:
3993: Returns a link to the chart for a specific student.
3994:
3995: Inputs:
3996:
3997: =over 4
3998:
3999: =item $linktext: The text of the link
4000:
4001: =item $sname: The students username
4002:
4003: =item $sdomain: The students domain
4004:
4005: =back
4006:
1.157 matthew 4007: =back
4008:
1.139 matthew 4009: =cut
4010:
4011: ############################################################
4012: ############################################################
4013: sub chartlink {
4014: my ($linktext, $sname, $sdomain) = @_;
4015: my $link = '<a href="/adm/statistics?reportSelected=student_assessment'.
1.219 albertel 4016: '&SelectedStudent='.&Apache::lonnet::escape($sname.':'.$sdomain).
4017: '&chartoutputmode='.HTML::Entities::encode('html, with all links').
1.139 matthew 4018: '">'.$linktext.'</a>';
1.153 matthew 4019: }
4020:
4021: #######################################################
4022: #######################################################
4023:
4024: =pod
4025:
4026: =head1 Course Environment Routines
1.157 matthew 4027:
4028: =over 4
1.153 matthew 4029:
4030: =item &restore_course_settings
4031:
4032: =item &store_course_settings
4033:
4034: Restores/Store indicated form parameters from the course environment.
4035: Will not overwrite existing values of the form parameters.
4036:
4037: Inputs:
4038: a scalar describing the data (e.g. 'chart', 'problem_analysis')
4039:
4040: a hash ref describing the data to be stored. For example:
4041:
4042: %Save_Parameters = ('Status' => 'scalar',
4043: 'chartoutputmode' => 'scalar',
4044: 'chartoutputdata' => 'scalar',
4045: 'Section' => 'array',
4046: 'StudentData' => 'array',
4047: 'Maps' => 'array');
4048:
4049: Returns: both routines return nothing
4050:
4051: =cut
4052:
4053: #######################################################
4054: #######################################################
4055: sub store_course_settings {
4056: # save to the environment
4057: # appenv the same items, just to be safe
1.258 albertel 4058: my $courseid = $env{'request.course.id'};
4059: my $coursedom = $env{'course.'.$courseid.'.domain'};
1.153 matthew 4060: my ($prefix,$Settings) = @_;
4061: my %SaveHash;
4062: my %AppHash;
4063: while (my ($setting,$type) = each(%$Settings)) {
1.176 albertel 4064: my $basename = 'internal.'.$prefix.'.'.$setting;
1.153 matthew 4065: my $envname = 'course.'.$courseid.'.'.$basename;
1.258 albertel 4066: if (exists($env{'form.'.$setting})) {
1.153 matthew 4067: # Save this value away
4068: if ($type eq 'scalar' &&
1.258 albertel 4069: (! exists($env{$envname}) ||
4070: $env{$envname} ne $env{'form.'.$setting})) {
4071: $SaveHash{$basename} = $env{'form.'.$setting};
4072: $AppHash{$envname} = $env{'form.'.$setting};
1.153 matthew 4073: } elsif ($type eq 'array') {
4074: my $stored_form;
1.258 albertel 4075: if (ref($env{'form.'.$setting})) {
1.153 matthew 4076: $stored_form = join(',',
4077: map {
4078: &Apache::lonnet::escape($_);
1.258 albertel 4079: } sort(@{$env{'form.'.$setting}}));
1.153 matthew 4080: } else {
4081: $stored_form =
1.258 albertel 4082: &Apache::lonnet::escape($env{'form.'.$setting});
1.153 matthew 4083: }
4084: # Determine if the array contents are the same.
1.258 albertel 4085: if ($stored_form ne $env{$envname}) {
1.153 matthew 4086: $SaveHash{$basename} = $stored_form;
4087: $AppHash{$envname} = $stored_form;
4088: }
4089: }
4090: }
4091: }
4092: my $put_result = &Apache::lonnet::put('environment',\%SaveHash,
4093: $coursedom,
1.258 albertel 4094: $env{'course.'.$courseid.'.num'});
1.153 matthew 4095: if ($put_result !~ /^(ok|delayed)/) {
4096: &Apache::lonnet::logthis('unable to save form parameters, '.
4097: 'got error:'.$put_result);
4098: }
4099: # Make sure these settings stick around in this session, too
4100: &Apache::lonnet::appenv(%AppHash);
4101: return;
4102: }
4103:
4104: sub restore_course_settings {
1.258 albertel 4105: my $courseid = $env{'request.course.id'};
1.153 matthew 4106: my ($prefix,$Settings) = @_;
4107: while (my ($setting,$type) = each(%$Settings)) {
1.258 albertel 4108: next if (exists($env{'form.'.$setting}));
1.176 albertel 4109: my $envname = 'course.'.$courseid.'.internal.'.$prefix.
1.153 matthew 4110: '.'.$setting;
1.258 albertel 4111: if (exists($env{$envname})) {
1.153 matthew 4112: if ($type eq 'scalar') {
1.258 albertel 4113: $env{'form.'.$setting} = $env{$envname};
1.153 matthew 4114: } elsif ($type eq 'array') {
1.258 albertel 4115: $env{'form.'.$setting} = [
1.153 matthew 4116: map {
4117: &Apache::lonnet::unescape($_);
1.258 albertel 4118: } split(',',$env{$envname})
1.153 matthew 4119: ];
4120: }
4121: }
4122: }
1.127 matthew 4123: }
4124:
4125: ############################################################
4126: ############################################################
1.154 albertel 4127:
4128: sub propath {
4129: my ($udom,$uname)=@_;
4130: $udom=~s/\W//g;
4131: $uname=~s/\W//g;
4132: my $subdir=$uname.'__';
4133: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
4134: my $proname="$Apache::lonnet::perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
4135: return $proname;
1.156 albertel 4136: }
4137:
4138: sub icon {
4139: my ($file)=@_;
1.168 albertel 4140: my $curfext = (split(/\./,$file))[-1];
4141: my $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/unknown.gif';
1.156 albertel 4142: my $embstyle = &Apache::loncommon::fileembstyle($curfext);
1.168 albertel 4143: if (!(!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn')) {
4144: if (-e $Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
4145: $Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
4146: $curfext.".gif") {
4147: $iconname=$Apache::lonnet::perlvar{'lonIconsURL'}.'/'.
4148: $curfext.".gif";
4149: }
4150: }
1.249 albertel 4151: return &lonhttpdurl($iconname);
1.154 albertel 4152: }
1.84 albertel 4153:
1.215 albertel 4154: sub lonhttpdurl {
4155: my ($url)=@_;
4156: my $lonhttpd_port=$Apache::lonnet::perlvar{'lonhttpdPort'};
4157: if (!defined($lonhttpd_port)) { $lonhttpd_port='8080'; }
4158: return 'http://'.$ENV{'SERVER_NAME'}.':'.$lonhttpd_port.$url;
4159: }
4160:
1.213 albertel 4161: sub connection_aborted {
4162: my ($r)=@_;
4163: $r->print(" ");$r->rflush();
4164: my $c = $r->connection;
4165: return $c->aborted();
4166: }
4167:
1.221 foxr 4168: # Escapes strings that may have embedded 's that will be put into
1.222 foxr 4169: # strings as 'strings'.
4170: sub escape_single {
1.221 foxr 4171: my ($input) = @_;
1.223 albertel 4172: $input =~ s/\\/\\\\/g; # Escape the \'s..(must be first)>
1.221 foxr 4173: $input =~ s/\'/\\\'/g; # Esacpe the 's....
4174: return $input;
4175: }
1.223 albertel 4176:
1.222 foxr 4177: # Same as escape_single, but escape's "'s This
4178: # can be used for "strings"
4179: sub escape_double {
4180: my ($input) = @_;
4181: $input =~ s/\\/\\\\/g; # Escape the /'s..(must be first)>
4182: $input =~ s/\"/\\\"/g; # Esacpe the "s....
4183: return $input;
4184: }
1.223 albertel 4185:
1.222 foxr 4186: # Escapes the last element of a full URL.
4187: sub escape_url {
4188: my ($url) = @_;
1.238 raeburn 4189: my @urlslices = split(/\//, $url,-1);
1.223 albertel 4190: my $lastitem = &Apache::lonnet::escape(pop(@urlslices));
4191: return join('/',@urlslices).'/'.$lastitem;
1.222 foxr 4192: }
1.41 ng 4193: =pod
4194:
4195: =back
4196:
1.112 bowersj2 4197: =cut
1.41 ng 4198:
1.112 bowersj2 4199: 1;
4200: __END__;
1.41 ng 4201:
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