File:
[LON-CAPA] /
loncom /
interface /
lonpreferences.pm
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1.70:
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Mon Dec 19 21:39:37 2005 UTC (18 years, 7 months ago) by
raeburn
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Display of whatsnew page on entering a course can be set for specific courses (override user prefs). Can suppress count of unread posts per resource. Link to first resource at top of page not shown if NEW button used to get to whatsnew. What's new no longer restricted to CC role - accessible to adavnced roles in a course.
1: # The LearningOnline Network
2: # Preferences
3: #
4: # $Id: lonpreferences.pm,v 1.70 2005/12/19 21:39:37 raeburn Exp $
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: #
28: # This package uses the "londes.js" javascript code.
29: #
30: # TODOs that have to be completed:
31: # interface with lonnet to change the password
32:
33: package Apache::lonpreferences;
34:
35: use strict;
36: use Apache::Constants qw(:common);
37: use Apache::File;
38: use Crypt::DES;
39: use DynaLoader; # for Crypt::DES version
40: use Apache::loncommon();
41: use Apache::lonhtmlcommon();
42: use Apache::lonlocal;
43: use Apache::lonnet;
44:
45: #
46: # Write lonnet::passwd to do the call below.
47: # Use:
48: # my $answer=reply("encrypt:passwd:$udom:$uname:$upass",$tryserver);
49: #
50: ##################################################
51: # password associated functions #
52: ##################################################
53: sub des_keys {
54: # Make a new key for DES encryption.
55: # Each key has two parts which are returned separately.
56: # Please note: Each key must be passed through the &hex function
57: # before it is output to the web browser. The hex versions cannot
58: # be used to decrypt.
59: my @hexstr=('0','1','2','3','4','5','6','7',
60: '8','9','a','b','c','d','e','f');
61: my $lkey='';
62: for (0..7) {
63: $lkey.=$hexstr[rand(15)];
64: }
65: my $ukey='';
66: for (0..7) {
67: $ukey.=$hexstr[rand(15)];
68: }
69: return ($lkey,$ukey);
70: }
71:
72: sub des_decrypt {
73: my ($key,$cyphertext) = @_;
74: my $keybin=pack("H16",$key);
75: my $cypher;
76: if ($Crypt::DES::VERSION>=2.03) {
77: $cypher=new Crypt::DES $keybin;
78: } else {
79: $cypher=new DES $keybin;
80: }
81: my $plaintext=
82: $cypher->decrypt(unpack("a8",pack("H16",substr($cyphertext,0,16))));
83: $plaintext.=
84: $cypher->decrypt(unpack("a8",pack("H16",substr($cyphertext,16,16))));
85: $plaintext=substr($plaintext,1,ord(substr($plaintext,0,1)) );
86: return $plaintext;
87: }
88:
89: ################################################################
90: # Handler subroutines #
91: ################################################################
92:
93: ################################################################
94: # Language Change Subroutines #
95: ################################################################
96:
97: sub wysiwygchanger {
98: my $r = shift;
99: my %userenv = &Apache::lonnet::get
100: ('environment',['wysiwygeditor']);
101: my $offselect='';
102: my $onselect='checked="1"';
103: if ($userenv{'wysiwygeditor'}) {
104: $onselect='';
105: $offselect='checked="1"';
106: }
107: my $switchoff=&mt('Disable WYSIWYG editor');
108: my $switchon=&mt('Enable WYSIWYG editor');
109: $r->print(<<ENDLSCREEN);
110: <form name="server" action="/adm/preferences" method="post">
111: <input type="hidden" name="action" value="set_wysiwyg" />
112: <br />
113: <label><input type="radio" name="wysiwyg" value="off" $onselect /> $switchoff</label><br />
114: <label><input type="radio" name="wysiwyg" value="on" $offselect /> $switchon</label>
115: ENDLSCREEN
116: $r->print('<br /><input type="submit" value="'.&mt('Change').'" />');
117: }
118:
119:
120: sub verify_and_change_wysiwyg {
121: my $r = shift;
122: my $newsetting=$env{'form.wysiwyg'};
123: &Apache::lonnet::put('environment',{'wysiwygeditor' => $newsetting});
124: &Apache::lonnet::appenv('environment.wysiwygeditor' => $newsetting);
125: $r->print('<p>'.&mt('Setting WYSIWYG editor to:').' '.&mt($newsetting).'</p>');
126: }
127:
128: ################################################################
129: # Language Change Subroutines #
130: ################################################################
131: sub languagechanger {
132: my $r = shift;
133: my $user = $env{'user.name'};
134: my $domain = $env{'user.domain'};
135: my %userenv = &Apache::lonnet::get
136: ('environment',['languages']);
137: my $language=$userenv{'languages'};
138:
139: my $pref=&mt('Preferred language');
140: my %langchoices=('' => 'No language preference');
141: foreach (&Apache::loncommon::languageids()) {
142: if (&Apache::loncommon::supportedlanguagecode($_)) {
143: $langchoices{&Apache::loncommon::supportedlanguagecode($_)}
144: = &Apache::loncommon::plainlanguagedescription($_);
145: }
146: }
147: my $selectionbox=&Apache::loncommon::select_form($language,'language',
148: %langchoices);
149: $r->print(<<ENDLSCREEN);
150: <form name="server" action="/adm/preferences" method="post">
151: <input type="hidden" name="action" value="verify_and_change_languages" />
152: <br />$pref: $selectionbox
153: ENDLSCREEN
154: $r->print('<br /><input type="submit" value="'.&mt('Change').'" />');
155: }
156:
157:
158: sub verify_and_change_languages {
159: my $r = shift;
160: my $user = $env{'user.name'};
161: my $domain = $env{'user.domain'};
162: # Screenname
163: my $newlanguage = $env{'form.language'};
164: $newlanguage=~s/[^\-\w]//g;
165: my $message='';
166: if ($newlanguage) {
167: &Apache::lonnet::put('environment',{'languages' => $newlanguage});
168: &Apache::lonnet::appenv('environment.languages' => $newlanguage);
169: $message='Set new preferred languages to '.$newlanguage;
170: } else {
171: &Apache::lonnet::del('environment',['languages']);
172: &Apache::lonnet::delenv('environment\.languages');
173: $message='Reset preferred language';
174: }
175: $r->print(<<ENDVCSCREEN);
176: $message
177: ENDVCSCREEN
178: }
179:
180: ################################################################
181: # Tex Engine Change Subroutines #
182: ################################################################
183: sub texenginechanger {
184: my $r = shift;
185: my $user = $env{'user.name'};
186: my $domain = $env{'user.domain'};
187: my %userenv = &Apache::lonnet::get('environment',['texengine']);
188: my $texengine=$userenv{'texengine'};
189:
190: my $pref=&mt('Preferred method to display Math');
191: my %mathchoices=('' => 'Default',
192: 'tth' => 'TeX to HTML',
193: #'ttm' => 'TeX to MathML',
194: 'jsMath' => 'jsMath',
195: 'mimetex' => 'Convert to Images'
196: );
197: my $selectionbox=&Apache::loncommon::select_form($texengine,'texengine',
198: %mathchoices);
199: my $jsMath_start=&Apache::lontexconvert::jsMath_header();
200: my $change=&mt('Change');
201: $r->print(<<ENDLSCREEN);
202: <br />
203:
204: <form name="server" action="/adm/preferences" method="post">
205: <input type="hidden" name="action" value="verify_and_change_texengine" />
206: <p>$pref: $selectionbox</p>
207: <p><input type="submit" value="$change" /></p>
208: </form>
209: Examples:
210: <p> TeX to HTML <br />
211: <iframe src="/res/adm/pages/math_example.tex?buttons=no&mode=tth" width="400" hieght="200"></iframe>
212: </p>
213: <p>jsMath <br />
214: $jsMath_start
215: <script type="text/javascript">
216: if (jsMath.nofonts == 1) {
217: document.writeln
218: ('<center><div style="padding: 10; border-style: solid; border-width:3;'
219: +' border-color: #DD0000; background-color: #FFF8F8; width: 75%; text-align: left">'
220: +'<small><font color="#AA0000"><b>Warning:</b> '
221: +'It looks like you don\\\'t have the TeX math fonts installed. '
222: +'The jsMath example on this page may not look right without them. '
223: +'The <a href="http://www.math.union.edu/locate/jsMath/" target="_blank"> '
224: +'jsMath Home Page</a> has information on how to download the '
225: +'needed fonts. In the meantime, jsMath will do the best it can '
226: +'with the fonts you have, but it may not be pretty and some equations '
227: +'may not be rendered correctly. '
228: +'</font></small></div></center>');
229: }
230: </script>
231: <iframe src="/res/adm/pages/math_example.tex?buttons=no&mode=jsMath" width="400" hieght="200"></iframe>
232:
233: </p>
234: <p> Convert to Images <br />
235: <br />
236: <iframe src="/res/adm/pages/math_example.tex?buttons=no&mode=mimetex" width="400" hieght="200"></iframe>
237: </p>
238: ENDLSCREEN
239: if ($env{'environment.texengine'} ne 'jsMath') {
240: $r->print('<script type="text/javascript">jsMath.Process()</script>');
241: }
242: }
243:
244:
245: sub verify_and_change_texengine {
246: my $r = shift;
247: my $user = $env{'user.name'};
248: my $domain = $env{'user.domain'};
249: # Screenname
250: my $newtexengine = $env{'form.texengine'};
251: $newtexengine=~s/[^\-\w]//g;
252: if ($newtexengine eq 'ttm') {
253: &Apache::lonnet::appenv('browser.mathml' => 1);
254: } else {
255: if ($env{'environment.texengine'} eq 'ttm') {
256: &Apache::lonnet::appenv('browser.mathml' => 0);
257: }
258: }
259: my $message='';
260: if ($newtexengine) {
261: &Apache::lonnet::put('environment',{'texengine' => $newtexengine});
262: &Apache::lonnet::appenv('environment.texengine' => $newtexengine);
263: $message='Set new preferred math display to '.$newtexengine;
264: } else {
265: &Apache::lonnet::del('environment',['texengine']);
266: &Apache::lonnet::delenv('environment\.texengine');
267: $message='Reset preferred math display.';
268: }
269:
270:
271: $r->print(<<ENDVCSCREEN);
272: $message
273: ENDVCSCREEN
274: }
275:
276: ################################################################
277: # Roles Page Preference Change Subroutines #
278: ################################################################
279: sub rolesprefchanger {
280: my $r = shift;
281: my $user = $env{'user.name'};
282: my $domain = $env{'user.domain'};
283: my %userenv = &Apache::lonnet::get
284: ('environment',['recentroles','recentrolesn']);
285: my $hotlist_flag=$userenv{'recentroles'};
286: my $hotlist_n=$userenv{'recentrolesn'};
287: my $checked;
288: if ($hotlist_flag) {
289: $checked = 'checked="checked"';
290: }
291:
292: if (!$hotlist_n) { $hotlist_n=3; }
293: my $options;
294: for (my $i=1; $i<10; $i++) {
295: my $select;
296: if ($hotlist_n == $i) { $select = 'selected="selected"'; }
297: $options .= "<option $select>$i</option>\n";
298: }
299:
300: $r->print(<<ENDSCREEN);
301: <p>Some LON-CAPA users have a long list of roles. The Recent Roles Hotlist
302: feature keeps track of the last N roles which have been
303: visited and places a table of these at the top of the roles page.
304: People with very few roles should leave this feature disabled.
305: </p>
306:
307: <form name="server" action="/adm/preferences" method="post">
308: <input type="hidden" name="action" value="verify_and_change_rolespref" />
309: <br />Enable Recent Roles Hotlist:
310: <input type="checkbox" $checked name="recentroles" value="true" />
311: <br />Number of roles in Hotlist:
312: <select name="recentrolesn" size="1">
313: $options
314: </select>
315: <br />
316: <input type="submit" value="Change" />
317: </form>
318: ENDSCREEN
319: }
320:
321: sub verify_and_change_rolespref {
322: my $r = shift;
323: my $user = $env{'user.name'};
324: my $domain = $env{'user.domain'};
325: # Recent Roles Hotlist Flag
326: my $hotlist_flag = $env{'form.recentroles'};
327: my $hotlist_n = $env{'form.recentrolesn'};
328: my $message='';
329: if ($hotlist_flag) {
330: &Apache::lonnet::put('environment',{'recentroles' => $hotlist_flag});
331: &Apache::lonnet::appenv('environment.recentroles' => $hotlist_flag);
332: $message='Recent Roles Hotlist is Enabled';
333: } else {
334: &Apache::lonnet::del('environment',['recentroles']);
335: &Apache::lonnet::delenv('environment\.recentroles');
336: $message='Recent Roles Hotlist is Disabled';
337: }
338: if ($hotlist_n) {
339: &Apache::lonnet::put('environment',{'recentrolesn' => $hotlist_n});
340: &Apache::lonnet::appenv('environment.recentrolesn' => $hotlist_n);
341: if ($hotlist_flag) {
342: $message.="<br />Display $hotlist_n Most Recent Roles\n";
343: }
344: }
345:
346: $r->print(<<ENDRPSCREEN);
347: $message
348: ENDRPSCREEN
349: }
350:
351:
352:
353: ################################################################
354: # Anonymous Discussion Name Change Subroutines #
355: ################################################################
356: sub screennamechanger {
357: my $r = shift;
358: my $user = $env{'user.name'};
359: my $domain = $env{'user.domain'};
360: my %userenv = &Apache::lonnet::get
361: ('environment',['screenname','nickname']);
362: my $screenname=$userenv{'screenname'};
363: my $nickname=$userenv{'nickname'};
364: $r->print(<<ENDSCREEN);
365: <form name="server" action="/adm/preferences" method="post">
366: <input type="hidden" name="action" value="verify_and_change_screenname" />
367: <br />New screenname (shown if you post anonymously):
368: <input type="text" size="20" value="$screenname" name="screenname" />
369: <br />New nickname (shown if you post non-anonymously):
370: <input type="text" size="20" value="$nickname" name="nickname" />
371: <input type="submit" value="Change" />
372: </form>
373: ENDSCREEN
374: }
375:
376: sub verify_and_change_screenname {
377: my $r = shift;
378: my $user = $env{'user.name'};
379: my $domain = $env{'user.domain'};
380: # Screenname
381: my $newscreen = $env{'form.screenname'};
382: $newscreen=~s/[^ \w]//g;
383: my $message='';
384: if ($newscreen) {
385: &Apache::lonnet::put('environment',{'screenname' => $newscreen});
386: &Apache::lonnet::appenv('environment.screenname' => $newscreen);
387: $message='Set new screenname to '.$newscreen;
388: } else {
389: &Apache::lonnet::del('environment',['screenname']);
390: &Apache::lonnet::delenv('environment\.screenname');
391: $message='Reset screenname';
392: }
393: # Nickname
394: $message.='<br />';
395: $newscreen = $env{'form.nickname'};
396: $newscreen=~s/[^ \w]//g;
397: if ($newscreen) {
398: &Apache::lonnet::put('environment',{'nickname' => $newscreen});
399: &Apache::lonnet::appenv('environment.nickname' => $newscreen);
400: $message.='Set new nickname to '.$newscreen;
401: } else {
402: &Apache::lonnet::del('environment',['nickname']);
403: &Apache::lonnet::delenv('environment\.nickname');
404: $message.='Reset nickname';
405: }
406: &Apache::lonnet::devalidate_cache_new('namescache',$user.':'.$domain);
407: $r->print(<<ENDVCSCREEN);
408: $message
409: ENDVCSCREEN
410: }
411:
412: ################################################################
413: # Message Forward #
414: ################################################################
415:
416: sub msgforwardchanger {
417: my $r = shift;
418: my $user = $env{'user.name'};
419: my $domain = $env{'user.domain'};
420: my %userenv = &Apache::lonnet::get('environment',['msgforward','notification','critnotification']);
421: my $msgforward=$userenv{'msgforward'};
422: my $notification=$userenv{'notification'};
423: my $critnotification=$userenv{'critnotification'};
424: my $forwardingHelp = Apache::loncommon::help_open_topic("Prefs_Forwarding",
425: "What are forwarding ".
426: "and notification ".
427: "addresses");
428: my $criticalMessageHelp = Apache::loncommon::help_open_topic("Course_Critical_Message",
429: "What are critical messages");
430:
431: $r->print(<<ENDMSG);
432: $forwardingHelp <br />
433: <form name="server" action="/adm/preferences" method="post">
434: <input type="hidden" name="action" value="verify_and_change_msgforward" />
435: New Forwarding Address(es) (<tt>user:domain,user:domain,...</tt>):
436: <input type="text" size="40" value="$msgforward" name="msgforward" /><hr />
437: New Message Notification Email Address(es) (<tt>joe\@doe.com,jane\@doe.edu,...</tt>):
438: <input type="text" size="40" value="$notification" name="notification" /><hr />
439: New Critical Message Notification Email Address(es) (<tt>joe\@doe.com,jane\@doe.edu,...</tt>):
440: <input type="text" size="40" value="$critnotification" name="critnotification" />$criticalMessageHelp<hr />
441: <input type="submit" value="Change" />
442: </form>
443: ENDMSG
444: }
445:
446: sub verify_and_change_msgforward {
447: my $r = shift;
448: my $user = $env{'user.name'};
449: my $domain = $env{'user.domain'};
450: my $newscreen = '';
451: my $message='';
452: foreach (split(/\,/,$env{'form.msgforward'})) {
453: my ($msuser,$msdomain)=split(/[\@\:]/,$_);
454: $msuser=~s/\W//g;
455: $msdomain=~s/\W//g;
456: if (($msuser) && ($msdomain)) {
457: if (&Apache::lonnet::homeserver($msuser,$msdomain) ne 'no_host') {
458: $newscreen.=$msuser.':'.$msdomain.',';
459: } else {
460: $message.='No such user: '.$msuser.':'.$msdomain.'<br>';
461: }
462: }
463: }
464: $newscreen=~s/\,$//;
465: if ($newscreen) {
466: &Apache::lonnet::put('environment',{'msgforward' => $newscreen});
467: &Apache::lonnet::appenv('environment.msgforward' => $newscreen);
468: $message.='Set new message forwarding to '.$newscreen.'<br />';
469: } else {
470: &Apache::lonnet::del('environment',['msgforward']);
471: &Apache::lonnet::delenv('environment\.msgforward');
472: $message.='Reset message forwarding<br />';
473: }
474: my $notification=$env{'form.notification'};
475: $notification=~s/\s//gs;
476: if ($notification) {
477: &Apache::lonnet::put('environment',{'notification' => $notification});
478: &Apache::lonnet::appenv('environment.notification' => $notification);
479: $message.='Set message notification address to '.$notification.'<br />';
480: } else {
481: &Apache::lonnet::del('environment',['notification']);
482: &Apache::lonnet::delenv('environment\.notification');
483: $message.='Reset message notification<br />';
484: }
485: my $critnotification=$env{'form.critnotification'};
486: $critnotification=~s/\s//gs;
487: if ($critnotification) {
488: &Apache::lonnet::put('environment',{'critnotification' => $critnotification});
489: &Apache::lonnet::appenv('environment.critnotification' => $critnotification);
490: $message.='Set critical message notification address to '.$critnotification;
491: } else {
492: &Apache::lonnet::del('environment',['critnotification']);
493: &Apache::lonnet::delenv('environment\.critnotification');
494: $message.='Reset critical message notification<br />';
495: }
496: $r->print(<<ENDVCMSG);
497: $message
498: ENDVCMSG
499: }
500:
501: ################################################################
502: # Colors #
503: ################################################################
504:
505: sub colorschanger {
506: my $r = shift;
507: # figure out colors
508: my $function='student';
509: if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
510: $function='coordinator';
511: }
512: if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
513: $function='admin';
514: }
515: if (($env{'request.role'}=~/^(au|ca)/) ||
516: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
517: $function='author';
518: }
519: my $domain=&Apache::loncommon::determinedomain();
520: my %colortypes=('pgbg' => 'Page Background',
521: 'tabbg' => 'Header Background',
522: 'sidebg'=> 'Header Border',
523: 'font' => 'Font',
524: 'link' => 'Un-Visited Link',
525: 'vlink' => 'Visited Link',
526: 'alink' => 'Active Link');
527: my $chtable='';
528: foreach my $item (sort(keys(%colortypes))) {
529: my $curcol=&Apache::loncommon::designparm($function.'.'.$item,$domain);
530: $chtable.='<tr><td>'.$colortypes{$item}.'</td><td bgcolor="'.$curcol.
531: '"> </td><td><input name="'.$item.
532: '" size="10" value="'.$curcol.
533: '" /></td><td><a href="javascript:pjump('."'color_custom','".$colortypes{$item}.
534: "','".$curcol."','"
535: .$item."','parmform.pres','psub'".');">Select</a></td></tr>';
536: }
537: my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
538: $r->print(<<ENDCOL);
539: <script>
540:
541: function pclose() {
542: parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
543: "height=350,width=350,scrollbars=no,menubar=no");
544: parmwin.close();
545: }
546:
547: $pjump_def
548:
549: function psub() {
550: pclose();
551: if (document.parmform.pres_marker.value!='') {
552: if (document.parmform.pres_type.value!='') {
553: eval('document.server.'+
554: document.parmform.pres_marker.value+
555: '.value=document.parmform.pres_value.value;');
556: }
557: } else {
558: document.parmform.pres_value.value='';
559: document.parmform.pres_marker.value='';
560: }
561: }
562:
563:
564: </script>
565: <form name="parmform">
566: <input type="hidden" name="pres_marker" />
567: <input type="hidden" name="pres_type" />
568: <input type="hidden" name="pres_value" />
569: </form>
570: <form name="server" action="/adm/preferences" method="post">
571: <input type="hidden" name="action" value="verify_and_change_colors" />
572: <table border="2">
573: $chtable
574: </table>
575: <input type="submit" value="Change Custom Colors" />
576: <input type="submit" name="resetall" value="Reset All Colors to Default" />
577: </form>
578: ENDCOL
579: }
580:
581: sub verify_and_change_colors {
582: my $r = shift;
583: # figure out colors
584: my $function='student';
585: if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
586: $function='coordinator';
587: }
588: if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
589: $function='admin';
590: }
591: if (($env{'request.role'}=~/^(au|ca)/) ||
592: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
593: $function='author';
594: }
595: my $domain=&Apache::loncommon::determinedomain();
596: my %colortypes=('pgbg' => 'Page Background',
597: 'tabbg' => 'Header Background',
598: 'sidebg'=> 'Header Border',
599: 'font' => 'Font',
600: 'link' => 'Un-Visited Link',
601: 'vlink' => 'Visited Link',
602: 'alink' => 'Active Link');
603:
604: my $message='';
605: foreach my $item (keys %colortypes) {
606: my $color=$env{'form.'.$item};
607: my $entry='color.'.$function.'.'.$item;
608: if (($color=~/^\#[0-9A-Fa-f]{6}$/) && (!$env{'form.resetall'})) {
609: &Apache::lonnet::put('environment',{$entry => $color});
610: &Apache::lonnet::appenv('environment.'.$entry => $color);
611: $message.='Set '.$colortypes{$item}.' to '.$color.'<br />';
612: } else {
613: &Apache::lonnet::del('environment',[$entry]);
614: &Apache::lonnet::delenv('environment\.'.$entry);
615: $message.='Reset '.$colortypes{$item}.'<br />';
616: }
617: }
618: $r->print(<<ENDVCCOL);
619: $message
620: <form name="client" action="/adm/preferences" method="post">
621: <input type="hidden" name="action" value="changecolors" />
622: </form>
623: ENDVCCOL
624: }
625:
626: ######################################################
627: # password handler subroutines #
628: ######################################################
629: sub passwordchanger {
630: # This function is a bit of a mess....
631: # Passwords are encrypted using londes.js (DES encryption)
632: my $r = shift;
633: my $errormessage = shift;
634: $errormessage = ($errormessage || '');
635: my $user = $env{'user.name'};
636: my $domain = $env{'user.domain'};
637: my $homeserver = $env{'user.home'};
638: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
639: # Check for authentication types that allow changing of the password.
640: return if ($currentauth !~ /^(unix|internal):/);
641: #
642: # Generate keys
643: my ($lkey_cpass ,$ukey_cpass ) = &des_keys();
644: my ($lkey_npass1,$ukey_npass1) = &des_keys();
645: my ($lkey_npass2,$ukey_npass2) = &des_keys();
646: # Store the keys in the log files
647: my $lonhost = $r->dir_config('lonHostID');
648: my $logtoken=Apache::lonnet::reply('tmpput:'
649: .$ukey_cpass . $lkey_cpass .'&'
650: .$ukey_npass1 . $lkey_npass1.'&'
651: .$ukey_npass2 . $lkey_npass2,
652: $lonhost);
653: # Hexify the keys for output as javascript variables
654: $ukey_cpass = hex($ukey_cpass);
655: $lkey_cpass = hex($lkey_cpass);
656: $ukey_npass1= hex($ukey_npass1);
657: $lkey_npass1= hex($lkey_npass1);
658: $ukey_npass2= hex($ukey_npass2);
659: $lkey_npass2= hex($lkey_npass2);
660: # Output javascript to deal with passwords
661: # Output DES javascript
662: my $html=&Apache::lonxml::xmlbegin();
663: $r->print($html."<head>");
664: {
665: my $include = $r->dir_config('lonIncludes');
666: my $jsh=Apache::File->new($include."/londes.js");
667: $r->print(<$jsh>);
668: }
669: $r->print(<<ENDFORM);
670: <script language="JavaScript">
671:
672: function send() {
673: uextkey=this.document.client.elements.ukey_cpass.value;
674: lextkey=this.document.client.elements.lkey_cpass.value;
675: initkeys();
676:
677: this.document.pserver.elements.currentpass.value
678: =crypted(this.document.client.elements.currentpass.value);
679:
680: uextkey=this.document.client.elements.ukey_npass1.value;
681: lextkey=this.document.client.elements.lkey_npass1.value;
682: initkeys();
683: this.document.pserver.elements.newpass_1.value
684: =crypted(this.document.client.elements.newpass_1.value);
685:
686: uextkey=this.document.client.elements.ukey_npass2.value;
687: lextkey=this.document.client.elements.lkey_npass2.value;
688: initkeys();
689: this.document.pserver.elements.newpass_2.value
690: =crypted(this.document.client.elements.newpass_2.value);
691:
692: this.document.pserver.submit();
693: }
694:
695: </script>
696: $errormessage
697:
698: <p>
699: <!-- We separate the forms into 'server' and 'client' in order to
700: ensure that unencrypted passwords will not be sent out by a
701: crappy browser -->
702:
703: <form name="pserver" action="/adm/preferences" method="post">
704: <input type="hidden" name="logtoken" value="$logtoken" />
705: <input type="hidden" name="action" value="verify_and_change_pass" />
706: <input type="hidden" name="currentpass" value="" />
707: <input type="hidden" name="newpass_1" value="" />
708: <input type="hidden" name="newpass_2" value="" />
709: </form>
710:
711: <form name="client" >
712: <table>
713: <tr><td align="right"> Current password: </td>
714: <td><input type="password" name="currentpass" size="10"/> </td></tr>
715: <tr><td align="right"> New password: </td>
716: <td><input type="password" name="newpass_1" size="10" /> </td></tr>
717: <tr><td align="right"> Confirm password: </td>
718: <td><input type="password" name="newpass_2" size="10" /> </td></tr>
719: <tr><td colspan="2" align="center">
720: <input type="button" value="Change Password" onClick="send();">
721: </table>
722: <input type="hidden" name="ukey_cpass" value="$ukey_cpass" />
723: <input type="hidden" name="lkey_cpass" value="$lkey_cpass" />
724: <input type="hidden" name="ukey_npass1" value="$ukey_npass1" />
725: <input type="hidden" name="lkey_npass1" value="$lkey_npass1" />
726: <input type="hidden" name="ukey_npass2" value="$ukey_npass2" />
727: <input type="hidden" name="lkey_npass2" value="$lkey_npass2" />
728: </form>
729: </p>
730: ENDFORM
731: #
732: return;
733: }
734:
735: sub verify_and_change_password {
736: my $r = shift;
737: my $user = $env{'user.name'};
738: my $domain = $env{'user.domain'};
739: my $homeserver = $env{'user.home'};
740: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
741: # Check for authentication types that allow changing of the password.
742: return if ($currentauth !~ /^(unix|internal):/);
743: #
744: my $html=&Apache::lonxml::xmlbegin();
745: $r->print(<<ENDHEADER);
746: $html
747: <head>
748: <title>LON-CAPA Preferences: Change password for $user</title>
749: </head>
750: ENDHEADER
751: #
752: my $currentpass = $env{'form.currentpass'};
753: my $newpass1 = $env{'form.newpass_1'};
754: my $newpass2 = $env{'form.newpass_2'};
755: my $logtoken = $env{'form.logtoken'};
756: # Check for empty data
757: unless (defined($currentpass) &&
758: defined($newpass1) &&
759: defined($newpass2) ){
760: &passwordchanger($r,"<p>\n<font color='#ff0000'>ERROR</font>".
761: "Password data was blank.\n</p>");
762: return;
763: }
764: # Get the keys
765: my $lonhost = $r->dir_config('lonHostID');
766: my $tmpinfo = Apache::lonnet::reply('tmpget:'.$logtoken,$lonhost);
767: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
768: # I do not a have a better idea about how to handle this
769: $r->print(<<ENDERROR);
770: <p>
771: <font color="#ff0000">ERROR:</font> Unable to retrieve stored token for
772: password decryption. Please log out and try again.
773: </p>
774: ENDERROR
775: # Probably should log an error here
776: return;
777: }
778: my ($ckey,$n1key,$n2key)=split(/&/,$tmpinfo);
779: #
780: $currentpass = &des_decrypt($ckey ,$currentpass);
781: $newpass1 = &des_decrypt($n1key,$newpass1);
782: $newpass2 = &des_decrypt($n2key,$newpass2);
783: #
784: if ($newpass1 ne $newpass2) {
785: &passwordchanger($r,
786: '<font color="#ff0000">ERROR:</font>'.
787: 'The new passwords you entered do not match. '.
788: 'Please try again.');
789: return;
790: }
791: if (length($newpass1) < 7) {
792: &passwordchanger($r,
793: '<font color="#ff0000">ERROR:</font>'.
794: 'Passwords must be a minimum of 7 characters long. '.
795: 'Please try again.');
796: return;
797: }
798: #
799: # Check for bad characters
800: my $badpassword = 0;
801: foreach (split(//,$newpass1)) {
802: $badpassword = 1 if ((ord($_)<32)||(ord($_)>126));
803: }
804: if ($badpassword) {
805: # I can't figure out how to enter bad characters on my browser.
806: &passwordchanger($r,<<ENDERROR);
807: <font color="#ff0000">ERROR:</font>
808: The password you entered contained illegal characters.<br />
809: Valid characters are: space and <br />
810: <pre>
811: !"\#$%&\'()*+,-./0123456789:;<=>?\@
812: ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_\`abcdefghijklmnopqrstuvwxyz{|}~
813: </pre>
814: ENDERROR
815: }
816: #
817: # Change the password (finally)
818: my $result = &Apache::lonnet::changepass
819: ($user,$domain,$currentpass,$newpass1,$homeserver);
820: # Inform the user the password has (not?) been changed
821: if ($result =~ /^ok$/) {
822: $r->print(<<"ENDTEXT");
823: <h2>The password for $user was successfully changed</h2>
824: ENDTEXT
825: } else {
826: # error error: run in circles, scream and shout
827: $r->print(<<ENDERROR);
828: <h2><font color="#ff0000">The password for $user was not changed</font></h2>
829: Please make sure your old password was entered correctly.
830: ENDERROR
831: }
832: return;
833: }
834:
835: ################################################################
836: # discussion display subroutines
837: ################################################################
838: sub discussionchanger {
839: my $r = shift;
840: my $user = $env{'user.name'};
841: my $domain = $env{'user.domain'};
842: my %userenv = &Apache::lonnet::get
843: ('environment',['discdisplay','discmarkread']);
844: my $discdisp = 'allposts';
845: my $discmark = 'onmark';
846:
847: if (defined($userenv{'discdisplay'})) {
848: unless ($userenv{'discdisplay'} eq '') {
849: $discdisp = $userenv{'discdisplay'};
850: }
851: }
852: if (defined($userenv{'discmarkread'})) {
853: unless ($userenv{'discdisplay'} eq '') {
854: $discmark = $userenv{'discmarkread'};
855: }
856: }
857:
858: my $newdisp = 'unread';
859: my $newmark = 'ondisp';
860:
861: my $function = &Apache::loncommon::get_users_function();
862: my $color = &Apache::loncommon::designparm($function.'.tabbg',
863: $env{'user.domain'});
864: my %lt = &Apache::lonlocal::texthash(
865: 'pref' => 'Display Preference',
866: 'curr' => 'Current setting ',
867: 'actn' => 'Action',
868: 'sdpf' => 'Set display preferences for discussion posts for both bulletin boards and individual resources in all your courses.',
869: 'prca' => 'Preferences can be set that determine',
870: 'whpo' => 'Which posts are displayed when you display a bulletin board or resource, and',
871: 'unwh' => 'Under what circumstances posts are identfied as "New"',
872: 'allposts' => 'All posts',
873: 'unread' => 'New posts only',
874: 'ondisp' => 'Once displayed',
875: 'onmark' => 'Once marked as read',
876: 'disa' => 'Posts displayed?',
877: 'npmr' => 'New posts cease to be identified as "New"?',
878: 'thde' => 'The preferences you set here can be overridden within each individual discussion.',
879: 'chgt' => 'Change to '
880: );
881: my $dispchange = $lt{'unread'};
882: my $markchange = $lt{'ondisp'};
883: my $currdisp = $lt{'allposts'};
884: my $currmark = $lt{'onmark'};
885:
886: if ($discdisp eq 'unread') {
887: $dispchange = $lt{'allposts'};
888: $currdisp = $lt{'unread'};
889: $newdisp = 'allposts';
890: }
891:
892: if ($discmark eq 'ondisp') {
893: $markchange = $lt{'onmark'};
894: $currmark = $lt{'ondisp'};
895: $newmark = 'onmark';
896: }
897:
898: $r->print(<<"END");
899: <form name="server" action="/adm/preferences" method="post">
900: <input type="hidden" name="action" value="verify_and_change_discussion" />
901: <br />
902: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li></ol>
903: <br />
904: <br />
905: <table border="0" cellpadding="0" cellspacing="0">
906: <tr>
907: <td width="100%" bgcolor="#000000">
908: <table width="100%" border="0" cellpadding="1" cellspacing="0">
909: <tr>
910: <td width="100%" bgcolor="#000000">
911: <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
912: <tr bgcolor="$color">
913: <td><b>$lt{'pref'}</b></td>
914: <td><b>$lt{'curr'}</b></td>
915: <td><b>$lt{'actn'}?</b></td>
916: </tr>
917: <tr bgcolor="#dddddd">
918: <td>$lt{'disa'}</td>
919: <td>$lt{$discdisp}</td>
920: <td><input type="checkbox" name="discdisp" /><input type="hidden" name="newdisp" value="$newdisp" /> $lt{'chgt'} "$dispchange"</td>
921: </tr><tr bgcolor="#eeeeee">
922: <td>$lt{'npmr'}</td>
923: <td>$lt{$discmark}</td>
924: <td><input type="checkbox" name="discmark" /><input type="hidden" name="newmark" value="$newmark" /> $lt{'chgt'} "$markchange"</td>
925: </tr>
926: </table>
927: </td>
928: </tr>
929: </table>
930: </td>
931: </tr>
932: </table>
933: <br />
934: <br />
935: <input type="submit" name="sub" value="Store Changes" />
936: <br />
937: <br />
938: Note: $lt{'thde'}
939: </form>
940: END
941: }
942:
943: sub verify_and_change_discussion {
944: my $r = shift;
945: my $user = $env{'user.name'};
946: my $domain = $env{'user.domain'};
947: my $message='';
948: if (defined($env{'form.discdisp'}) ) {
949: my $newdisp = $env{'form.newdisp'};
950: if ($newdisp eq 'unread') {
951: $message .='In discussions: only new posts will be displayed.<br/>';
952: &Apache::lonnet::put('environment',{'discdisplay' => $newdisp});
953: &Apache::lonnet::appenv('environment.discdisplay' => $newdisp);
954: } else {
955: $message .= 'In discussions: all posts will be displayed.<br/>';
956: &Apache::lonnet::del('environment',['discdisplay']);
957: &Apache::lonnet::delenv('environment\.discdisplay');
958: }
959: }
960: if (defined($env{'form.discmark'}) ) {
961: my $newmark = $env{'form.newmark'};
962: if ($newmark eq 'ondisp') {
963: $message.='In discussions: new posts will be cease to be identified as "new" after display.<br/>';
964: &Apache::lonnet::put('environment',{'discmarkread' => $newmark});
965: &Apache::lonnet::appenv('environment.discmarkread' => $newmark);
966: } else {
967: $message.='In discussions: posts will be identified as "new" until marked as read by the reader.<br/>';
968: &Apache::lonnet::del('environment',['discmarkread']);
969: &Apache::lonnet::delenv('environment\.discmarkread');
970: }
971: }
972: $r->print(<<ENDVCSCREEN);
973: $message
974: ENDVCSCREEN
975: }
976:
977: ################################################################
978: # Subroutines for page display on course access (Course Coordinators)
979: ################################################################
980: sub coursedisplaychanger {
981: my $r = shift;
982: my $user = $env{'user.name'};
983: my $domain = $env{'user.domain'};
984: my %userenv = &Apache::lonnet::get('environment',['course_init_display']);
985:
986: my $firstselect='checked="checked"';
987: my $whatsnewselect='';
988: if ($userenv{'course_init_display'} ne 'firstres') {
989: $firstselect='';
990: $whatsnewselect='checked="checked"';
991: }
992: my $whatsnew_off=&mt('Display the [_1] in the course.','<b>first resource</b>');
993: my $whatsnew_on=&mt('Display the "[_1]" page - a summary of items in the course which require attention.',"<b>What's New</b>");
994:
995: $r->print('<br /><b>'.&mt('Set the default page to be displayed when you select a course role other than student or TA').':</b><br />'.&mt('The global user preference you set for your courses can be overridden in an individual course by setting a course specific setting via the "[_1]" page in the course',"<i>What's New</i>").'<br /><br />');
996: $r->print(<<ENDLSCREEN);
997: <form name="server" action="/adm/preferences" method="post">
998: <input type="hidden" name="action" value="verify_and_change_coursepage" />
999: <label><input type="radio" name="newdisp" value="firstres" $firstselect /> $whatsnew_off</label><br />
1000: <label><input type="radio" name="newdisp" value="whatsnew" $whatsnewselect /> $whatsnew_on</label><input type="hidden" name="refpage" value="$env{'form.refpage'}" />
1001: ENDLSCREEN
1002: $r->print('<br /><br /><input type="submit" value="'.&mt('Change').'" />
1003: </form>');
1004: }
1005:
1006: sub verify_and_change_coursepage {
1007: my $r = shift;
1008: my $message='';
1009: my %lt = &Apache::lonlocal::texthash(
1010: 'defs' => 'Default now set',
1011: 'when' => 'when selecting a course role other than student or TA from the roles screen',
1012: 'ywbt' => 'you will be taken to the start of the course.',
1013: 'apwb' => 'a page will be displayed that lists items in the course that may require action from you.',
1014: 'gtts' => 'Go to the start of the course',
1015: 'dasp' => "Display the What's New page listing course action items",
1016: );
1017: my $newdisp = $env{'form.newdisp'};
1018: $message = '<b>'.$lt{'defs'}.'</b>: '.$lt{'when'}.', ';
1019: if ($newdisp eq 'firstres') {
1020: $message .= $lt{'ywbt'}.'<br/>';
1021: &Apache::lonnet::put('environment',{'course_init_display' => $newdisp});
1022: &Apache::lonnet::appenv('environment.course_init_display' => $newdisp);
1023: } else {
1024: $message .= $lt{'apwb'}.'<br/>';
1025: &Apache::lonnet::del('environment',['course_init_display']);
1026: &Apache::lonnet::delenv('environment\.course_init_display');
1027: }
1028: my $refpage = $env{'form.refpage'};
1029: if (($env{'request.course.fn'}) && ($env{'request.course.id'})) {
1030: if ($newdisp eq 'firstres') {
1031: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1032: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1033: my ($furl,$ferr)=
1034: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
1035: $message .= '<br /><font size="+1"><a href="'.$furl.'">'.$lt{'gtts'}.' <i>'.&mt('now').'</i></a></font>';
1036: } else {
1037: $message .= '<br /><font size="+1"><a href="/adm/whatsnew?refpage='.
1038: $refpage.'">'.$lt{'dasp'}.'</a></font>';
1039: }
1040: }
1041: $r->print(<<ENDVCSCREEN);
1042: $message
1043: <br /><br />
1044: ENDVCSCREEN
1045: }
1046:
1047:
1048: ######################################################
1049: # other handler subroutines #
1050: ######################################################
1051:
1052: ################################################################
1053: # Main handler #
1054: ################################################################
1055: sub handler {
1056: my $r = shift;
1057: my $user = $env{'user.name'};
1058: my $domain = $env{'user.domain'};
1059: &Apache::loncommon::content_type($r,'text/html');
1060: # Some pages contain DES keys and should not be cached.
1061: &Apache::loncommon::no_cache($r);
1062: $r->send_http_header;
1063: return OK if $r->header_only;
1064: #
1065: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1066: ['action','wysiwyg','returnurl','refpage']);
1067: #
1068: &Apache::lonhtmlcommon::clear_breadcrumbs();
1069: &Apache::lonhtmlcommon::add_breadcrumb
1070: ({href => '/adm/preferences',
1071: text => 'Set User Preferences'});
1072:
1073: my @Options;
1074: # Determine current authentication method
1075: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
1076: if ($currentauth =~ /^(unix|internal):/) {
1077: push (@Options,({ action => 'changepass',
1078: linktext => 'Change Password',
1079: href => '/adm/preferences',
1080: help => 'Change_Password',
1081: subroutine => \&passwordchanger,
1082: breadcrumb =>
1083: { href => '/adm/preferences?action=changepass',
1084: text => 'Change Password'},
1085: },
1086: { action => 'verify_and_change_pass',
1087: subroutine => \&verify_and_change_password,
1088: breadcrumb =>
1089: { href =>'/adm/preferences?action=changepass',
1090: text => 'Change Password'},
1091: printmenu => 'yes',
1092: }));
1093: }
1094: push (@Options,({ action => 'changescreenname',
1095: linktext => 'Change Screen Name',
1096: href => '/adm/preferences',
1097: help => 'Prefs_Screen_Name_Nickname',
1098: subroutine => \&screennamechanger,
1099: breadcrumb =>
1100: { href => '/adm/preferences?action=changescreenname',
1101: text => 'Change Screen Name'},
1102: },
1103: { action => 'verify_and_change_screenname',
1104: subroutine => \&verify_and_change_screenname,
1105: breadcrumb =>
1106: { href => '/adm/preferences?action=changescreenname',
1107: text => 'Change Screen Name'},
1108: printmenu => 'yes',
1109: }));
1110:
1111: push (@Options,({ action => 'changemsgforward',
1112: linktext => 'Change Message Forwarding and Notification Addresses',
1113: href => '/adm/preferences',
1114: help => 'Prefs_Forwarding',
1115: breadcrumb =>
1116: { href => '/adm/preferences?action=changemsgforward',
1117: text => 'Change Message Forwarding'},
1118: subroutine => \&msgforwardchanger,
1119: },
1120: { action => 'verify_and_change_msgforward',
1121: breadcrumb =>
1122: { href => '/adm/preferences?action=changemsgforward',
1123: text => 'Change Message Forwarding'},
1124: printmenu => 'yes',
1125: subroutine => \&verify_and_change_msgforward }));
1126: my $aboutmeaction=
1127: '/adm/'.$env{'user.domain'}.'/'.$env{'user.name'}.'/aboutme';
1128: push (@Options,{ action => 'none',
1129: linktext =>
1130: q{Edit the 'About Me' Personal Information Screen},
1131: help => 'Prefs_About_Me',
1132: href => $aboutmeaction});
1133: push (@Options,({ action => 'changecolors',
1134: linktext => 'Change Color Scheme',
1135: href => '/adm/preferences',
1136: help => 'Change_Colors',
1137: breadcrumb =>
1138: { href => '/adm/preferences?action=changecolors',
1139: text => 'Change Colors'},
1140: subroutine => \&colorschanger,
1141: },
1142: { action => 'verify_and_change_colors',
1143: breadcrumb =>
1144: { href => '/adm/preferences?action=changecolors',
1145: text => 'Change Colors'},
1146: printmenu => 'yes',
1147: subroutine => \&verify_and_change_colors,
1148: }));
1149: push (@Options,({ action => 'changelanguages',
1150: linktext => 'Change Language Preferences',
1151: href => '/adm/preferences',
1152: help => 'Prefs_Language',
1153: breadcrumb=>
1154: { href => '/adm/preferences?action=changelanguages',
1155: text => 'Change Language'},
1156: subroutine => \&languagechanger,
1157: },
1158: { action => 'verify_and_change_languages',
1159: breadcrumb=>
1160: {href => '/adm/preferences?action=changelanguages',
1161: text => 'Change Language'},
1162: printmenu => 'yes',
1163: subroutine=>\&verify_and_change_languages, }
1164: ));
1165: push (@Options,({ action => 'changewysiwyg',
1166: linktext => 'Change WYSIWYG Editor Preferences',
1167: href => '/adm/preferences',
1168: breadcrumb =>
1169: { href => '/adm/preferences?action=changewysiwyg',
1170: text => 'Change WYSIWYG Preferences'},
1171: subroutine => \&wysiwygchanger,
1172: },
1173: { action => 'set_wysiwyg',
1174: breadcrumb =>
1175: { href => '/adm/preferences?action=changewysiwyg',
1176: text => 'Change WYSIWYG Preferences'},
1177: printmenu => 'yes',
1178: subroutine => \&verify_and_change_wysiwyg, }
1179: ));
1180: push (@Options,({ action => 'changediscussions',
1181: linktext => 'Change Discussion Display Preferences',
1182: href => '/adm/preferences',
1183: help => 'Change_Discussion_Display',
1184: breadcrumb =>
1185: { href => '/adm/preferences?action=changediscussions',
1186: text => 'Change Discussion Preferences'},
1187: subroutine => \&discussionchanger,
1188: },
1189: { action => 'verify_and_change_discussion',
1190: breadcrumb =>
1191: { href => '/adm/preferences?action=changediscussions',
1192: text => 'Change Discussion Preferences'},
1193: printmenu => 'yes',
1194: subroutine => \&verify_and_change_discussion, }
1195: ));
1196:
1197: push (@Options,({ action => 'changerolespref',
1198: linktext => 'Change Roles Page Preferences',
1199: href => '/adm/preferences',
1200: subroutine => \&rolesprefchanger,
1201: breadcrumb =>
1202: { href => '/adm/preferences?action=changerolespref',
1203: text => 'Change Roles Pref'},
1204: },
1205: { action => 'verify_and_change_rolespref',
1206: subroutine => \&verify_and_change_rolespref,
1207: breadcrumb =>
1208: { href => '/adm/preferences?action=changerolespref',
1209: text => 'Change Roles Preferences'},
1210: printmenu => 'yes',
1211: }));
1212:
1213: push (@Options,({ action => 'changetexenginepref',
1214: linktext => 'Change How Math Equations Are Displayed',
1215: href => '/adm/preferences',
1216: subroutine => \&texenginechanger,
1217: breadcrumb =>
1218: { href => '/adm/preferences?action=changetexenginepref',
1219: text => 'Change Math Pref'},
1220: },
1221: { action => 'verify_and_change_texengine',
1222: subroutine => \&verify_and_change_texengine,
1223: breadcrumb =>
1224: { href => '/adm/preferences?action=changetexenginepref',
1225: text => 'Change Math Preferences'},
1226: printmenu => 'yes',
1227: }));
1228: if($env{'request.role'} =~ /^cc\.\//) {
1229: push (@Options,({ action => 'changecourseinit',
1230: linktext => 'Change Course Initialization Preference',
1231: href => '/adm/preferences',
1232: subroutine => \&coursedisplaychanger,
1233: breadcrumb =>
1234: { href => '/adm/preferences?action=changecourseinit',
1235: text => 'Change Course Init. Pref.'},
1236: },
1237: { action => 'verify_and_change_coursepage',
1238: breadcrumb =>
1239: { href => '/adm/preferences?action=changecourseinit', text => 'Change Course Initialization Preference'},
1240: printmenu => 'yes',
1241: subroutine => \&verify_and_change_coursepage,
1242: }));
1243: }
1244:
1245: if ($env{'user.name'} =~ /^(albertel|fox|foxr|koretemey|korte|hallmat3|turtle|raeburn)$/) {
1246: push (@Options,({ action => 'debugtoggle',
1247: printmenu => 'yes',
1248: subroutine => \&toggle_debug,
1249: }));
1250: }
1251: my $html=&Apache::lonxml::xmlbegin();
1252: $r->print(<<ENDHEADER);
1253: $html
1254: <head>
1255: <title>LON-CAPA Preferences</title>
1256: </head>
1257: ENDHEADER
1258: my $call = undef;
1259: my $help = undef;
1260: my $printmenu = 'yes';
1261: foreach my $option (@Options) {
1262: if ($option->{'action'} eq $env{'form.action'}) {
1263: $call = $option->{'subroutine'};
1264: $printmenu = $option->{'printmenu'};
1265: if (exists($option->{'breadcrumb'})) {
1266: &Apache::lonhtmlcommon::add_breadcrumb
1267: ($option->{'breadcrumb'});
1268: }
1269: $help=$option->{'help'};
1270: }
1271: }
1272: $r->print(&Apache::loncommon::bodytag('Change Preferences'));
1273: $r->print(&Apache::lonhtmlcommon::breadcrumbs
1274: (undef,'Change Preferences',$help));
1275: if (defined($call)) {
1276: $call->($r);
1277: }
1278: if (($printmenu eq 'yes') && (!$env{'form.returnurl'})) {
1279: my $optionlist = '<table cellpadding="5">';
1280: if ($env{'user.name'} =~
1281: /^(albertel|kortemey|fox|foxr|korte|hallmat3|turtle|raeburn)$/
1282: ) {
1283: push (@Options,({ action => 'debugtoggle',
1284: linktext => 'Toggle Debug Messages',
1285: text => 'Current Debug status is -'.
1286: $env{'user.debug'}.'-.',
1287: href => '/adm/preferences',
1288: printmenu => 'yes',
1289: subroutine => \&toggle_debug,
1290: }));
1291: }
1292: foreach my $option(@Options) {
1293: my $optiontext = '';
1294: if (exists($option->{'href'})) {
1295: $optiontext .=
1296: '<a href="'.$option->{'href'}.
1297: '?action='.$option->{'action'}.'">'.
1298: &mt($option->{'linktext'}).'</a>';
1299: }
1300: if (exists($option->{'text'})) {
1301: $optiontext .= ' '.&mt($option->{'text'});
1302: }
1303: if ($optiontext ne '') {
1304: $optiontext = '<font size="+1">'.$optiontext.'</font>';
1305: my $helplink = ' ';
1306: if (exists($option->{'help'})) {
1307: $helplink = &Apache::loncommon::help_open_topic
1308: ($option->{'help'});
1309: }
1310: $optionlist .= '<tr>'.
1311: '<td>'.$helplink.'</td>'.
1312: '<td>'.$optiontext.'</td>'.
1313: '</tr>';
1314: }
1315: }
1316: $optionlist .= '</table>';
1317: $r->print($optionlist);
1318: } elsif ($env{'form.returnurl'}) {
1319: $r->print('<br /><a href="'.$env{'form.returnurl'}.'"><font size="+1">'.
1320: &mt('Return').'</font></a>');
1321: }
1322: $r->print(&Apache::loncommon::endbodytag().'</html>');
1323: return OK;
1324: }
1325:
1326: sub toggle_debug {
1327: if ($env{'user.debug'}) {
1328: &Apache::lonnet::delenv('user\.debug');
1329: } else {
1330: &Apache::lonnet::appenv('user.debug' => 1);
1331: }
1332: }
1333:
1334: 1;
1335: __END__
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