1: # The LearningOnline Network
2: # Preferences
3: #
4: # $Id: lonpreferences.pm,v 1.65 2005/06/16 22:11:13 albertel 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=('' => 'No Preference',
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 $mathexample='$$\int\left(\frac{a+b}{c^6*d}\right)$$';
200: my $jsMath_example=&Apache::lontexconvert::jsMath_converted(\$mathexample);
201: $mathexample='$$\int\left(\frac{a+b}{c^6*d}\right)$$';
202: my $tth_example=&Apache::lontexconvert::tth_converted(\$mathexample);
203: $mathexample='$$\int\left(\frac{a+b}{c^6*d}\right)$$';
204: my $mimetex_example=&Apache::lontexconvert::mimetex_converted(\$mathexample);
205: my $change=&mt('Change');
206: $r->print(<<ENDLSCREEN);
207: <form name="server" action="/adm/preferences" method="post">
208: <input type="hidden" name="action" value="verify_and_change_texengine" />
209: <p>$pref: $selectionbox</p>
210: <p><input type="submit" value="$change" /></p>
211: </form>
212: Examples:
213: <p> TeX to HTML <br /> $tth_example</p>
214: <script type="text/javascript">function NoFontMessage () { }</script>
215: <script src="/adm/jsMath/jsMath.js"></script>
216: <p>jsMath <br />
217:
218: <script type="text/javascript">
219: if (jsMath.nofonts == 1) {
220: document.writeln
221: ('<center><div style="padding: 10; border-style: solid; border-width:3;'
222: +' border-color: #DD0000; background-color: #FFF8F8; width: 75%; text-align: left">'
223: +'<small><font color="#AA0000"><b>Warning:</b> '
224: +'It looks like you don\\\'t have the TeX math fonts installed. '
225: +'The jsMath example on this page may not look right without them. '
226: +'The <a href="http://www.math.union.edu/locate/jsMath/" target="_blank"> '
227: +'jsMath Home Page</a> has information on how to download the '
228: +'needed fonts. In the meantime, jsMath will do the best it can '
229: +'with the fonts you have, but it may not be pretty and some equations '
230: +'may not be rendered correctly. '
231: +'</font></small></div></center>');
232: }
233: </script>
234:
235: $jsMath_example</p>
236: <p> Convert to Images <br /> $mimetex_example</p>
237: ENDLSCREEN
238: if ($env{'environment.texengine'} ne 'jsMath') {
239: $r->print('<script type="text/javascript">jsMath.Process()</script>');
240: }
241: }
242:
243:
244: sub verify_and_change_texengine {
245: my $r = shift;
246: my $user = $env{'user.name'};
247: my $domain = $env{'user.domain'};
248: # Screenname
249: my $newtexengine = $env{'form.texengine'};
250: $newtexengine=~s/[^\-\w]//g;
251: if ($newtexengine eq 'ttm') {
252: &Apache::lonnet::appenv('browser.mathml' => 1);
253: } else {
254: if ($env{'environment.texengine'} eq 'ttm') {
255: &Apache::lonnet::appenv('browser.mathml' => 0);
256: }
257: }
258: my $message='';
259: if ($newtexengine) {
260: &Apache::lonnet::put('environment',{'texengine' => $newtexengine});
261: &Apache::lonnet::appenv('environment.texengine' => $newtexengine);
262: $message='Set new preferred math display to '.$newtexengine;
263: } else {
264: &Apache::lonnet::del('environment',['texengine']);
265: &Apache::lonnet::delenv('environment\.texengine');
266: $message='Reset preferred math display.';
267: }
268:
269:
270: $r->print(<<ENDVCSCREEN);
271: $message
272: ENDVCSCREEN
273: }
274:
275: ################################################################
276: # Roles Page Preference Change Subroutines #
277: ################################################################
278: sub rolesprefchanger {
279: my $r = shift;
280: my $user = $env{'user.name'};
281: my $domain = $env{'user.domain'};
282: my %userenv = &Apache::lonnet::get
283: ('environment',['recentroles','recentrolesn']);
284: my $hotlist_flag=$userenv{'recentroles'};
285: my $hotlist_n=$userenv{'recentrolesn'};
286: my $checked;
287: if ($hotlist_flag) {
288: $checked = 'checked="checked"';
289: }
290:
291: if (!$hotlist_n) { $hotlist_n=3; }
292: my $options;
293: for (my $i=1; $i<10; $i++) {
294: my $select;
295: if ($hotlist_n == $i) { $select = 'selected="selected"'; }
296: $options .= "<option $select>$i</option>\n";
297: }
298:
299: $r->print(<<ENDSCREEN);
300: <p>Some LON-CAPA users have a long list of roles. The Recent Roles Hotlist
301: feature keeps track of the last N roles which have been
302: visited and places a table of these at the top of the roles page.
303: People with very few roles should leave this feature disabled.
304: </p>
305:
306: <form name="server" action="/adm/preferences" method="post">
307: <input type="hidden" name="action" value="verify_and_change_rolespref" />
308: <br />Enable Recent Roles Hotlist:
309: <input type="checkbox" $checked name="recentroles" value="true" />
310: <br />Number of roles in Hotlist:
311: <select name="recentrolesn" size="1">
312: $options
313: </select>
314: <br />
315: <input type="submit" value="Change" />
316: </form>
317: ENDSCREEN
318: }
319:
320: sub verify_and_change_rolespref {
321: my $r = shift;
322: my $user = $env{'user.name'};
323: my $domain = $env{'user.domain'};
324: # Recent Roles Hotlist Flag
325: my $hotlist_flag = $env{'form.recentroles'};
326: my $hotlist_n = $env{'form.recentrolesn'};
327: my $message='';
328: if ($hotlist_flag) {
329: &Apache::lonnet::put('environment',{'recentroles' => $hotlist_flag});
330: &Apache::lonnet::appenv('environment.recentroles' => $hotlist_flag);
331: $message='Recent Roles Hotlist is Enabled';
332: } else {
333: &Apache::lonnet::del('environment',['recentroles']);
334: &Apache::lonnet::delenv('environment\.recentroles');
335: $message='Recent Roles Hotlist is Disabled';
336: }
337: if ($hotlist_n) {
338: &Apache::lonnet::put('environment',{'recentrolesn' => $hotlist_n});
339: &Apache::lonnet::appenv('environment.recentrolesn' => $hotlist_n);
340: if ($hotlist_flag) {
341: $message.="<br />Display $hotlist_n Most Recent Roles\n";
342: }
343: }
344:
345: $r->print(<<ENDRPSCREEN);
346: $message
347: ENDRPSCREEN
348: }
349:
350:
351:
352: ################################################################
353: # Anonymous Discussion Name Change Subroutines #
354: ################################################################
355: sub screennamechanger {
356: my $r = shift;
357: my $user = $env{'user.name'};
358: my $domain = $env{'user.domain'};
359: my %userenv = &Apache::lonnet::get
360: ('environment',['screenname','nickname']);
361: my $screenname=$userenv{'screenname'};
362: my $nickname=$userenv{'nickname'};
363: $r->print(<<ENDSCREEN);
364: <form name="server" action="/adm/preferences" method="post">
365: <input type="hidden" name="action" value="verify_and_change_screenname" />
366: <br />New screenname (shown if you post anonymously):
367: <input type="text" size="20" value="$screenname" name="screenname" />
368: <br />New nickname (shown if you post non-anonymously):
369: <input type="text" size="20" value="$nickname" name="nickname" />
370: <input type="submit" value="Change" />
371: </form>
372: ENDSCREEN
373: }
374:
375: sub verify_and_change_screenname {
376: my $r = shift;
377: my $user = $env{'user.name'};
378: my $domain = $env{'user.domain'};
379: # Screenname
380: my $newscreen = $env{'form.screenname'};
381: $newscreen=~s/[^ \w]//g;
382: my $message='';
383: if ($newscreen) {
384: &Apache::lonnet::put('environment',{'screenname' => $newscreen});
385: &Apache::lonnet::appenv('environment.screenname' => $newscreen);
386: $message='Set new screenname to '.$newscreen;
387: } else {
388: &Apache::lonnet::del('environment',['screenname']);
389: &Apache::lonnet::delenv('environment\.screenname');
390: $message='Reset screenname';
391: }
392: # Nickname
393: $message.='<br />';
394: $newscreen = $env{'form.nickname'};
395: $newscreen=~s/[^ \w]//g;
396: if ($newscreen) {
397: &Apache::lonnet::put('environment',{'nickname' => $newscreen});
398: &Apache::lonnet::appenv('environment.nickname' => $newscreen);
399: $message.='Set new nickname to '.$newscreen;
400: } else {
401: &Apache::lonnet::del('environment',['nickname']);
402: &Apache::lonnet::delenv('environment\.nickname');
403: $message.='Reset nickname';
404: }
405:
406: $r->print(<<ENDVCSCREEN);
407: $message
408: ENDVCSCREEN
409: }
410:
411: ################################################################
412: # Message Forward #
413: ################################################################
414:
415: sub msgforwardchanger {
416: my $r = shift;
417: my $user = $env{'user.name'};
418: my $domain = $env{'user.domain'};
419: my %userenv = &Apache::lonnet::get('environment',['msgforward','notification','critnotification']);
420: my $msgforward=$userenv{'msgforward'};
421: my $notification=$userenv{'notification'};
422: my $critnotification=$userenv{'critnotification'};
423: my $forwardingHelp = Apache::loncommon::help_open_topic("Prefs_Forwarding",
424: "What are forwarding ".
425: "and notification ".
426: "addresses");
427: my $criticalMessageHelp = Apache::loncommon::help_open_topic("Course_Critical_Message",
428: "What are critical messages");
429:
430: $r->print(<<ENDMSG);
431: $forwardingHelp <br />
432: <form name="server" action="/adm/preferences" method="post">
433: <input type="hidden" name="action" value="verify_and_change_msgforward" />
434: New Forwarding Address(es) (<tt>user:domain,user:domain,...</tt>):
435: <input type="text" size="40" value="$msgforward" name="msgforward" /><hr />
436: New Message Notification Email Address(es) (<tt>joe\@doe.com,jane\@doe.edu,...</tt>):
437: <input type="text" size="40" value="$notification" name="notification" /><hr />
438: New Critical Message Notification Email Address(es) (<tt>joe\@doe.com,jane\@doe.edu,...</tt>):
439: <input type="text" size="40" value="$critnotification" name="critnotification" />$criticalMessageHelp<hr />
440: <input type="submit" value="Change" />
441: </form>
442: ENDMSG
443: }
444:
445: sub verify_and_change_msgforward {
446: my $r = shift;
447: my $user = $env{'user.name'};
448: my $domain = $env{'user.domain'};
449: my $newscreen = '';
450: my $message='';
451: foreach (split(/\,/,$env{'form.msgforward'})) {
452: my ($msuser,$msdomain)=split(/[\@\:]/,$_);
453: $msuser=~s/\W//g;
454: $msdomain=~s/\W//g;
455: if (($msuser) && ($msdomain)) {
456: if (&Apache::lonnet::homeserver($msuser,$msdomain) ne 'no_host') {
457: $newscreen.=$msuser.':'.$msdomain.',';
458: } else {
459: $message.='No such user: '.$msuser.':'.$msdomain.'<br>';
460: }
461: }
462: }
463: $newscreen=~s/\,$//;
464: if ($newscreen) {
465: &Apache::lonnet::put('environment',{'msgforward' => $newscreen});
466: &Apache::lonnet::appenv('environment.msgforward' => $newscreen);
467: $message.='Set new message forwarding to '.$newscreen.'<br />';
468: } else {
469: &Apache::lonnet::del('environment',['msgforward']);
470: &Apache::lonnet::delenv('environment\.msgforward');
471: $message.='Reset message forwarding<br />';
472: }
473: my $notification=$env{'form.notification'};
474: $notification=~s/\s//gs;
475: if ($notification) {
476: &Apache::lonnet::put('environment',{'notification' => $notification});
477: &Apache::lonnet::appenv('environment.notification' => $notification);
478: $message.='Set message notification address to '.$notification.'<br />';
479: } else {
480: &Apache::lonnet::del('environment',['notification']);
481: &Apache::lonnet::delenv('environment\.notification');
482: $message.='Reset message notification<br />';
483: }
484: my $critnotification=$env{'form.critnotification'};
485: $critnotification=~s/\s//gs;
486: if ($critnotification) {
487: &Apache::lonnet::put('environment',{'critnotification' => $critnotification});
488: &Apache::lonnet::appenv('environment.critnotification' => $critnotification);
489: $message.='Set critical message notification address to '.$critnotification;
490: } else {
491: &Apache::lonnet::del('environment',['critnotification']);
492: &Apache::lonnet::delenv('environment\.critnotification');
493: $message.='Reset critical message notification<br />';
494: }
495: $r->print(<<ENDVCMSG);
496: $message
497: ENDVCMSG
498: }
499:
500: ################################################################
501: # Colors #
502: ################################################################
503:
504: sub colorschanger {
505: my $r = shift;
506: # figure out colors
507: my $function='student';
508: if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
509: $function='coordinator';
510: }
511: if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
512: $function='admin';
513: }
514: if (($env{'request.role'}=~/^(au|ca)/) ||
515: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
516: $function='author';
517: }
518: my $domain=&Apache::loncommon::determinedomain();
519: my %colortypes=('pgbg' => 'Page Background',
520: 'tabbg' => 'Header Background',
521: 'sidebg'=> 'Header Border',
522: 'font' => 'Font',
523: 'link' => 'Un-Visited Link',
524: 'vlink' => 'Visited Link',
525: 'alink' => 'Active Link');
526: my $chtable='';
527: foreach my $item (sort(keys(%colortypes))) {
528: my $curcol=&Apache::loncommon::designparm($function.'.'.$item,$domain);
529: $chtable.='<tr><td>'.$colortypes{$item}.'</td><td bgcolor="'.$curcol.
530: '"> </td><td><input name="'.$item.
531: '" size="10" value="'.$curcol.
532: '" /></td><td><a href="javascript:pjump('."'color_custom','".$colortypes{$item}.
533: "','".$curcol."','"
534: .$item."','parmform.pres','psub'".');">Select</a></td></tr>';
535: }
536: my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
537: $r->print(<<ENDCOL);
538: <script>
539:
540: function pclose() {
541: parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
542: "height=350,width=350,scrollbars=no,menubar=no");
543: parmwin.close();
544: }
545:
546: $pjump_def
547:
548: function psub() {
549: pclose();
550: if (document.parmform.pres_marker.value!='') {
551: if (document.parmform.pres_type.value!='') {
552: eval('document.server.'+
553: document.parmform.pres_marker.value+
554: '.value=document.parmform.pres_value.value;');
555: }
556: } else {
557: document.parmform.pres_value.value='';
558: document.parmform.pres_marker.value='';
559: }
560: }
561:
562:
563: </script>
564: <form name="parmform">
565: <input type="hidden" name="pres_marker" />
566: <input type="hidden" name="pres_type" />
567: <input type="hidden" name="pres_value" />
568: </form>
569: <form name="server" action="/adm/preferences" method="post">
570: <input type="hidden" name="action" value="verify_and_change_colors" />
571: <table border="2">
572: $chtable
573: </table>
574: <input type="submit" value="Change Custom Colors" />
575: <input type="submit" name="resetall" value="Reset All Colors to Default" />
576: </form>
577: ENDCOL
578: }
579:
580: sub verify_and_change_colors {
581: my $r = shift;
582: # figure out colors
583: my $function='student';
584: if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
585: $function='coordinator';
586: }
587: if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
588: $function='admin';
589: }
590: if (($env{'request.role'}=~/^(au|ca)/) ||
591: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
592: $function='author';
593: }
594: my $domain=&Apache::loncommon::determinedomain();
595: my %colortypes=('pgbg' => 'Page Background',
596: 'tabbg' => 'Header Background',
597: 'sidebg'=> 'Header Border',
598: 'font' => 'Font',
599: 'link' => 'Un-Visited Link',
600: 'vlink' => 'Visited Link',
601: 'alink' => 'Active Link');
602:
603: my $message='';
604: foreach my $item (keys %colortypes) {
605: my $color=$env{'form.'.$item};
606: my $entry='color.'.$function.'.'.$item;
607: if (($color=~/^\#[0-9A-Fa-f]{6}$/) && (!$env{'form.resetall'})) {
608: &Apache::lonnet::put('environment',{$entry => $color});
609: &Apache::lonnet::appenv('environment.'.$entry => $color);
610: $message.='Set '.$colortypes{$item}.' to '.$color.'<br />';
611: } else {
612: &Apache::lonnet::del('environment',[$entry]);
613: &Apache::lonnet::delenv('environment\.'.$entry);
614: $message.='Reset '.$colortypes{$item}.'<br />';
615: }
616: }
617: $r->print(<<ENDVCCOL);
618: $message
619: <form name="client" action="/adm/preferences" method="post">
620: <input type="hidden" name="action" value="changecolors" />
621: </form>
622: ENDVCCOL
623: }
624:
625: ######################################################
626: # password handler subroutines #
627: ######################################################
628: sub passwordchanger {
629: # This function is a bit of a mess....
630: # Passwords are encrypted using londes.js (DES encryption)
631: my $r = shift;
632: my $errormessage = shift;
633: $errormessage = ($errormessage || '');
634: my $user = $env{'user.name'};
635: my $domain = $env{'user.domain'};
636: my $homeserver = $env{'user.home'};
637: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
638: # Check for authentication types that allow changing of the password.
639: return if ($currentauth !~ /^(unix|internal):/);
640: #
641: # Generate keys
642: my ($lkey_cpass ,$ukey_cpass ) = &des_keys();
643: my ($lkey_npass1,$ukey_npass1) = &des_keys();
644: my ($lkey_npass2,$ukey_npass2) = &des_keys();
645: # Store the keys in the log files
646: my $lonhost = $r->dir_config('lonHostID');
647: my $logtoken=Apache::lonnet::reply('tmpput:'
648: .$ukey_cpass . $lkey_cpass .'&'
649: .$ukey_npass1 . $lkey_npass1.'&'
650: .$ukey_npass2 . $lkey_npass2,
651: $lonhost);
652: # Hexify the keys for output as javascript variables
653: $ukey_cpass = hex($ukey_cpass);
654: $lkey_cpass = hex($lkey_cpass);
655: $ukey_npass1= hex($ukey_npass1);
656: $lkey_npass1= hex($lkey_npass1);
657: $ukey_npass2= hex($ukey_npass2);
658: $lkey_npass2= hex($lkey_npass2);
659: # Output javascript to deal with passwords
660: # Output DES javascript
661: my $html=&Apache::lonxml::xmlbegin();
662: $r->print($html."<head>");
663: {
664: my $include = $r->dir_config('lonIncludes');
665: my $jsh=Apache::File->new($include."/londes.js");
666: $r->print(<$jsh>);
667: }
668: $r->print(<<ENDFORM);
669: <script language="JavaScript">
670:
671: function send() {
672: uextkey=this.document.client.elements.ukey_cpass.value;
673: lextkey=this.document.client.elements.lkey_cpass.value;
674: initkeys();
675:
676: this.document.pserver.elements.currentpass.value
677: =crypted(this.document.client.elements.currentpass.value);
678:
679: uextkey=this.document.client.elements.ukey_npass1.value;
680: lextkey=this.document.client.elements.lkey_npass1.value;
681: initkeys();
682: this.document.pserver.elements.newpass_1.value
683: =crypted(this.document.client.elements.newpass_1.value);
684:
685: uextkey=this.document.client.elements.ukey_npass2.value;
686: lextkey=this.document.client.elements.lkey_npass2.value;
687: initkeys();
688: this.document.pserver.elements.newpass_2.value
689: =crypted(this.document.client.elements.newpass_2.value);
690:
691: this.document.pserver.submit();
692: }
693:
694: </script>
695: $errormessage
696:
697: <p>
698: <!-- We separate the forms into 'server' and 'client' in order to
699: ensure that unencrypted passwords will not be sent out by a
700: crappy browser -->
701:
702: <form name="pserver" action="/adm/preferences" method="post">
703: <input type="hidden" name="logtoken" value="$logtoken" />
704: <input type="hidden" name="action" value="verify_and_change_pass" />
705: <input type="hidden" name="currentpass" value="" />
706: <input type="hidden" name="newpass_1" value="" />
707: <input type="hidden" name="newpass_2" value="" />
708: </form>
709:
710: <form name="client" >
711: <table>
712: <tr><td align="right"> Current password: </td>
713: <td><input type="password" name="currentpass" size="10"/> </td></tr>
714: <tr><td align="right"> New password: </td>
715: <td><input type="password" name="newpass_1" size="10" /> </td></tr>
716: <tr><td align="right"> Confirm password: </td>
717: <td><input type="password" name="newpass_2" size="10" /> </td></tr>
718: <tr><td colspan="2" align="center">
719: <input type="button" value="Change Password" onClick="send();">
720: </table>
721: <input type="hidden" name="ukey_cpass" value="$ukey_cpass" />
722: <input type="hidden" name="lkey_cpass" value="$lkey_cpass" />
723: <input type="hidden" name="ukey_npass1" value="$ukey_npass1" />
724: <input type="hidden" name="lkey_npass1" value="$lkey_npass1" />
725: <input type="hidden" name="ukey_npass2" value="$ukey_npass2" />
726: <input type="hidden" name="lkey_npass2" value="$lkey_npass2" />
727: </form>
728: </p>
729: ENDFORM
730: #
731: return;
732: }
733:
734: sub verify_and_change_password {
735: my $r = shift;
736: my $user = $env{'user.name'};
737: my $domain = $env{'user.domain'};
738: my $homeserver = $env{'user.home'};
739: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
740: # Check for authentication types that allow changing of the password.
741: return if ($currentauth !~ /^(unix|internal):/);
742: #
743: my $html=&Apache::lonxml::xmlbegin();
744: $r->print(<<ENDHEADER);
745: $html
746: <head>
747: <title>LON-CAPA Preferences: Change password for $user</title>
748: </head>
749: ENDHEADER
750: #
751: my $currentpass = $env{'form.currentpass'};
752: my $newpass1 = $env{'form.newpass_1'};
753: my $newpass2 = $env{'form.newpass_2'};
754: my $logtoken = $env{'form.logtoken'};
755: # Check for empty data
756: unless (defined($currentpass) &&
757: defined($newpass1) &&
758: defined($newpass2) ){
759: &passwordchanger($r,"<p>\n<font color='#ff0000'>ERROR</font>".
760: "Password data was blank.\n</p>");
761: return;
762: }
763: # Get the keys
764: my $lonhost = $r->dir_config('lonHostID');
765: my $tmpinfo = Apache::lonnet::reply('tmpget:'.$logtoken,$lonhost);
766: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
767: # I do not a have a better idea about how to handle this
768: $r->print(<<ENDERROR);
769: <p>
770: <font color="#ff0000">ERROR:</font> Unable to retrieve stored token for
771: password decryption. Please log out and try again.
772: </p>
773: ENDERROR
774: # Probably should log an error here
775: return;
776: }
777: my ($ckey,$n1key,$n2key)=split(/&/,$tmpinfo);
778: #
779: $currentpass = &des_decrypt($ckey ,$currentpass);
780: $newpass1 = &des_decrypt($n1key,$newpass1);
781: $newpass2 = &des_decrypt($n2key,$newpass2);
782: #
783: if ($newpass1 ne $newpass2) {
784: &passwordchanger($r,
785: '<font color="#ff0000">ERROR:</font>'.
786: 'The new passwords you entered do not match. '.
787: 'Please try again.');
788: return;
789: }
790: if (length($newpass1) < 7) {
791: &passwordchanger($r,
792: '<font color="#ff0000">ERROR:</font>'.
793: 'Passwords must be a minimum of 7 characters long. '.
794: 'Please try again.');
795: return;
796: }
797: #
798: # Check for bad characters
799: my $badpassword = 0;
800: foreach (split(//,$newpass1)) {
801: $badpassword = 1 if ((ord($_)<32)||(ord($_)>126));
802: }
803: if ($badpassword) {
804: # I can't figure out how to enter bad characters on my browser.
805: &passwordchanger($r,<<ENDERROR);
806: <font color="#ff0000">ERROR:</font>
807: The password you entered contained illegal characters.<br />
808: Valid characters are: space and <br />
809: <pre>
810: !"\#$%&\'()*+,-./0123456789:;<=>?\@
811: ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_\`abcdefghijklmnopqrstuvwxyz{|}~
812: </pre>
813: ENDERROR
814: }
815: #
816: # Change the password (finally)
817: my $result = &Apache::lonnet::changepass
818: ($user,$domain,$currentpass,$newpass1,$homeserver);
819: # Inform the user the password has (not?) been changed
820: if ($result =~ /^ok$/) {
821: $r->print(<<"ENDTEXT");
822: <h2>The password for $user was successfully changed</h2>
823: ENDTEXT
824: } else {
825: # error error: run in circles, scream and shout
826: $r->print(<<ENDERROR);
827: <h2><font color="#ff0000">The password for $user was not changed</font></h2>
828: Please make sure your old password was entered correctly.
829: ENDERROR
830: }
831: return;
832: }
833:
834: ################################################################
835: # discussion display subroutines
836: ################################################################
837: sub discussionchanger {
838: my $r = shift;
839: my $user = $env{'user.name'};
840: my $domain = $env{'user.domain'};
841: my %userenv = &Apache::lonnet::get
842: ('environment',['discdisplay','discmarkread']);
843: my $discdisp = 'allposts';
844: my $discmark = 'onmark';
845:
846: if (defined($userenv{'discdisplay'})) {
847: unless ($userenv{'discdisplay'} eq '') {
848: $discdisp = $userenv{'discdisplay'};
849: }
850: }
851: if (defined($userenv{'discmarkread'})) {
852: unless ($userenv{'discdisplay'} eq '') {
853: $discmark = $userenv{'discmarkread'};
854: }
855: }
856:
857: my $newdisp = 'unread';
858: my $newmark = 'ondisp';
859:
860: my $function = &Apache::loncommon::get_users_function();
861: my $color = &Apache::loncommon::designparm($function.'.tabbg',
862: $env{'user.domain'});
863: my %lt = &Apache::lonlocal::texthash(
864: 'pref' => 'Display Preference',
865: 'curr' => 'Current setting ',
866: 'actn' => 'Action',
867: 'sdpf' => 'Set display preferences for discussion posts for both bulletin boards and individual resources in all your courses.',
868: 'prca' => 'Preferences can be set that determine',
869: 'whpo' => 'Which posts are displayed when you display a bulletin board or resource, and',
870: 'unwh' => 'Under what circumstances posts are identfied as "New"',
871: 'allposts' => 'All posts',
872: 'unread' => 'New posts only',
873: 'ondisp' => 'Once displayed',
874: 'onmark' => 'Once marked as read',
875: 'disa' => 'Posts displayed?',
876: 'npmr' => 'New posts cease to be identified as "New"?',
877: 'thde' => 'The preferences you set here can be overridden within each individual discussion.',
878: 'chgt' => 'Change to '
879: );
880: my $dispchange = $lt{'unread'};
881: my $markchange = $lt{'ondisp'};
882: my $currdisp = $lt{'allposts'};
883: my $currmark = $lt{'onmark'};
884:
885: if ($discdisp eq 'unread') {
886: $dispchange = $lt{'allposts'};
887: $currdisp = $lt{'unread'};
888: $newdisp = 'allposts';
889: }
890:
891: if ($discmark eq 'ondisp') {
892: $markchange = $lt{'onmark'};
893: $currmark = $lt{'ondisp'};
894: $newmark = 'onmark';
895: }
896:
897: $r->print(<<"END");
898: <form name="server" action="/adm/preferences" method="post">
899: <input type="hidden" name="action" value="verify_and_change_discussion" />
900: <br />
901: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li></ol>
902: <br />
903: <br />
904: <table border="0" cellpadding="0" cellspacing="0">
905: <tr>
906: <td width="100%" bgcolor="#000000">
907: <table width="100%" border="0" cellpadding="1" cellspacing="0">
908: <tr>
909: <td width="100%" bgcolor="#000000">
910: <table border="0" cellpadding="3" cellspacing="3" bgcolor="#FFFFFF">
911: <tr bgcolor="$color">
912: <td><b>$lt{'pref'}</b></td>
913: <td><b>$lt{'curr'}</b></td>
914: <td><b>$lt{'actn'}?</b></td>
915: </tr>
916: <tr bgcolor="#dddddd">
917: <td>$lt{'disa'}</td>
918: <td>$lt{$discdisp}</td>
919: <td><input type="checkbox" name="discdisp" /><input type="hidden" name="newdisp" value="$newdisp" /> $lt{'chgt'} "$dispchange"</td>
920: </tr><tr bgcolor="#eeeeee">
921: <td>$lt{'npmr'}</td>
922: <td>$lt{$discmark}</td>
923: <td><input type="checkbox" name="discmark" /><input type="hidden" name="newmark" value="$newmark" /> $lt{'chgt'} "$markchange"</td>
924: </tr>
925: </table>
926: </td>
927: </tr>
928: </table>
929: </td>
930: </tr>
931: </table>
932: <br />
933: <br />
934: <input type="submit" name="sub" value="Store Changes" />
935: <br />
936: <br />
937: Note: $lt{'thde'}
938: </form>
939: END
940: }
941:
942: sub verify_and_change_discussion {
943: my $r = shift;
944: my $user = $env{'user.name'};
945: my $domain = $env{'user.domain'};
946: my $message='';
947: if (defined($env{'form.discdisp'}) ) {
948: my $newdisp = $env{'form.newdisp'};
949: if ($newdisp eq 'unread') {
950: $message .='In discussions: only new posts will be displayed.<br/>';
951: &Apache::lonnet::put('environment',{'discdisplay' => $newdisp});
952: &Apache::lonnet::appenv('environment.discdisplay' => $newdisp);
953: } else {
954: $message .= 'In discussions: all posts will be displayed.<br/>';
955: &Apache::lonnet::del('environment',['discdisplay']);
956: &Apache::lonnet::delenv('environment\.discdisplay');
957: }
958: }
959: if (defined($env{'form.discmark'}) ) {
960: my $newmark = $env{'form.newmark'};
961: if ($newmark eq 'ondisp') {
962: $message.='In discussions: new posts will be cease to be identified as "new" after display.<br/>';
963: &Apache::lonnet::put('environment',{'discmarkread' => $newmark});
964: &Apache::lonnet::appenv('environment.discmarkread' => $newmark);
965: } else {
966: $message.='In discussions: posts will be identified as "new" until marked as read by the reader.<br/>';
967: &Apache::lonnet::del('environment',['discmarkread']);
968: &Apache::lonnet::delenv('environment\.discmarkread');
969: }
970: }
971: $r->print(<<ENDVCSCREEN);
972: $message
973: ENDVCSCREEN
974: }
975:
976: ################################################################
977: # Subroutines for page display on course access (Course Coordinators)
978: ################################################################
979: sub coursedisplaychanger {
980: my $r = shift;
981: my $user = $env{'user.name'};
982: my $domain = $env{'user.domain'};
983: my %userenv = &Apache::lonnet::get
984: ('environment',['course_init_display']);
985:
986: my $firstselect='checked="checked"';
987: my $whatsnewselect='';
988: if ($userenv{'course_init_display'} eq 'whatsnew') {
989: $firstselect='';
990: $whatsnewselect='checked="checked"';
991: }
992: my $whatsnew_off=&mt('Display the first resource in the course.');
993: my $whatsnew_on=&mt('Display a summary of items in the course which require action from the course coordinator.');
994:
995: $r->print('<br /><b>'.&mt('Set the page to be displayed when you select the role of Course Coordinator').':</b>');
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>
1001: ENDLSCREEN
1002: $r->print('<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: 'when' => 'Whenever you select the Course Coordinator role from the roles screen',
1011: 'ywbt' => 'you will be taken to the start of the course.',
1012: 'apwb' => 'a page will be displayed that lists items in the course that may require action from you.',
1013: 'gtts' => 'Go to the start of the course',
1014: 'dasp' => 'Display a summary page listing course action items',
1015: );
1016: my $newdisp = $env{'form.newdisp'};
1017: if ($newdisp eq 'firstres') {
1018: $message .= $lt{'when'}.', '.$lt{'ywbt'}.'<br/>';
1019: &Apache::lonnet::put('environment',{'course_init_display' => $newdisp});
1020: &Apache::lonnet::appenv('environment.course_init_display' => $newdisp);
1021: } else {
1022: $message .= $lt{'when'}.', '.$lt{'apwb'}.'<br/>';
1023: &Apache::lonnet::del('environment',['course_init_display']);
1024: &Apache::lonnet::delenv('environment\.course_init_display');
1025: }
1026: if (($env{'request.course.fn'}) && ($env{'request.course.id'})) {
1027: if ($newdisp eq 'firstres') {
1028: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1029: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1030: my ($furl,$ferr)=
1031: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
1032: $message .= '<br /><font size="+1"><a href="'.$furl.'">'.$lt{'gtts'}.' <i>'.&mt('now').'</i></a></font>';
1033: } else {
1034: $message .= '<br /><font size="+1"><a href="/adm/whatsnew">'.$lt{'dasp'}.'</a></font>';
1035: }
1036: }
1037: $r->print(<<ENDVCSCREEN);
1038: $message
1039: <br /><br />
1040: ENDVCSCREEN
1041: }
1042:
1043:
1044: ######################################################
1045: # other handler subroutines #
1046: ######################################################
1047:
1048: ################################################################
1049: # Main handler #
1050: ################################################################
1051: sub handler {
1052: my $r = shift;
1053: my $user = $env{'user.name'};
1054: my $domain = $env{'user.domain'};
1055: &Apache::loncommon::content_type($r,'text/html');
1056: # Some pages contain DES keys and should not be cached.
1057: &Apache::loncommon::no_cache($r);
1058: $r->send_http_header;
1059: return OK if $r->header_only;
1060: #
1061: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1062: ['action','wysiwyg','returnurl']);
1063: #
1064: &Apache::lonhtmlcommon::clear_breadcrumbs();
1065: &Apache::lonhtmlcommon::add_breadcrumb
1066: ({href => '/adm/preferences',
1067: text => 'Set User Preferences'});
1068:
1069: my @Options;
1070: # Determine current authentication method
1071: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
1072: if ($currentauth =~ /^(unix|internal):/) {
1073: push (@Options,({ action => 'changepass',
1074: linktext => 'Change Password',
1075: href => '/adm/preferences',
1076: help => 'Change_Password',
1077: subroutine => \&passwordchanger,
1078: breadcrumb =>
1079: { href => '/adm/preferences?action=changepass',
1080: text => 'Change Password'},
1081: },
1082: { action => 'verify_and_change_pass',
1083: subroutine => \&verify_and_change_password,
1084: breadcrumb =>
1085: { href =>'/adm/preferences?action=changepass',
1086: text => 'Change Password'},
1087: printmenu => 'yes',
1088: }));
1089: }
1090: push (@Options,({ action => 'changescreenname',
1091: linktext => 'Change Screen Name',
1092: href => '/adm/preferences',
1093: help => 'Prefs_Screen_Name_Nickname',
1094: subroutine => \&screennamechanger,
1095: breadcrumb =>
1096: { href => '/adm/preferences?action=changescreenname',
1097: text => 'Change Screen Name'},
1098: },
1099: { action => 'verify_and_change_screenname',
1100: subroutine => \&verify_and_change_screenname,
1101: breadcrumb =>
1102: { href => '/adm/preferences?action=changescreenname',
1103: text => 'Change Screen Name'},
1104: printmenu => 'yes',
1105: }));
1106:
1107: push (@Options,({ action => 'changemsgforward',
1108: linktext => 'Change Message Forwarding and Notification Addresses',
1109: href => '/adm/preferences',
1110: help => 'Prefs_Forwarding',
1111: breadcrumb =>
1112: { href => '/adm/preferences?action=changemsgforward',
1113: text => 'Change Message Forwarding'},
1114: subroutine => \&msgforwardchanger,
1115: },
1116: { action => 'verify_and_change_msgforward',
1117: breadcrumb =>
1118: { href => '/adm/preferences?action=changemsgforward',
1119: text => 'Change Message Forwarding'},
1120: printmenu => 'yes',
1121: subroutine => \&verify_and_change_msgforward }));
1122: my $aboutmeaction=
1123: '/adm/'.$env{'user.domain'}.'/'.$env{'user.name'}.'/aboutme';
1124: push (@Options,{ action => 'none',
1125: linktext =>
1126: q{Edit the 'About Me' Personal Information Screen},
1127: help => 'Prefs_About_Me',
1128: href => $aboutmeaction});
1129: push (@Options,({ action => 'changecolors',
1130: linktext => 'Change Color Scheme',
1131: href => '/adm/preferences',
1132: help => 'Change_Colors',
1133: breadcrumb =>
1134: { href => '/adm/preferences?action=changecolors',
1135: text => 'Change Colors'},
1136: subroutine => \&colorschanger,
1137: },
1138: { action => 'verify_and_change_colors',
1139: breadcrumb =>
1140: { href => '/adm/preferences?action=changecolors',
1141: text => 'Change Colors'},
1142: printmenu => 'yes',
1143: subroutine => \&verify_and_change_colors,
1144: }));
1145: push (@Options,({ action => 'changelanguages',
1146: linktext => 'Change Language Preferences',
1147: href => '/adm/preferences',
1148: help => 'Prefs_Language',
1149: breadcrumb=>
1150: { href => '/adm/preferences?action=changelanguages',
1151: text => 'Change Language'},
1152: subroutine => \&languagechanger,
1153: },
1154: { action => 'verify_and_change_languages',
1155: breadcrumb=>
1156: {href => '/adm/preferences?action=changelanguages',
1157: text => 'Change Language'},
1158: printmenu => 'yes',
1159: subroutine=>\&verify_and_change_languages, }
1160: ));
1161: push (@Options,({ action => 'changewysiwyg',
1162: linktext => 'Change WYSIWYG Editor Preferences',
1163: href => '/adm/preferences',
1164: breadcrumb =>
1165: { href => '/adm/preferences?action=changewysiwyg',
1166: text => 'Change WYSIWYG Preferences'},
1167: subroutine => \&wysiwygchanger,
1168: },
1169: { action => 'set_wysiwyg',
1170: breadcrumb =>
1171: { href => '/adm/preferences?action=changewysiwyg',
1172: text => 'Change WYSIWYG Preferences'},
1173: printmenu => 'yes',
1174: subroutine => \&verify_and_change_wysiwyg, }
1175: ));
1176: push (@Options,({ action => 'changediscussions',
1177: linktext => 'Change Discussion Display Preferences',
1178: href => '/adm/preferences',
1179: help => 'Change_Discussion_Display',
1180: breadcrumb =>
1181: { href => '/adm/preferences?action=changediscussions',
1182: text => 'Change Discussion Preferences'},
1183: subroutine => \&discussionchanger,
1184: },
1185: { action => 'verify_and_change_discussion',
1186: breadcrumb =>
1187: { href => '/adm/preferences?action=changediscussions',
1188: text => 'Change Discussion Preferences'},
1189: printmenu => 'yes',
1190: subroutine => \&verify_and_change_discussion, }
1191: ));
1192:
1193: push (@Options,({ action => 'changerolespref',
1194: linktext => 'Change Roles Page Preferences',
1195: href => '/adm/preferences',
1196: subroutine => \&rolesprefchanger,
1197: breadcrumb =>
1198: { href => '/adm/preferences?action=changerolespref',
1199: text => 'Change Roles Pref'},
1200: },
1201: { action => 'verify_and_change_rolespref',
1202: subroutine => \&verify_and_change_rolespref,
1203: breadcrumb =>
1204: { href => '/adm/preferences?action=changerolespref',
1205: text => 'Change Roles Preferences'},
1206: printmenu => 'yes',
1207: }));
1208:
1209: push (@Options,({ action => 'changetexenginepref',
1210: linktext => 'Change How Math Equations Are Displayed',
1211: href => '/adm/preferences',
1212: subroutine => \&texenginechanger,
1213: breadcrumb =>
1214: { href => '/adm/preferences?action=changetexenginepref',
1215: text => 'Change Math Pref'},
1216: },
1217: { action => 'verify_and_change_texengine',
1218: subroutine => \&verify_and_change_texengine,
1219: breadcrumb =>
1220: { href => '/adm/preferences?action=changetexenginepref',
1221: text => 'Change Math Preferences'},
1222: printmenu => 'yes',
1223: }));
1224: if($env{'request.role'} =~ /^cc\.\//) {
1225: push (@Options,({ action => 'changecourseinit',
1226: linktext => 'Change Course Initialization Preference',
1227: href => '/adm/preferences',
1228: subroutine => \&coursedisplaychanger,
1229: breadcrumb =>
1230: { href => '/adm/preferences?action=changecourseinit',
1231: text => 'Change Course Init. Pref.'},
1232: },
1233: { action => 'verify_and_change_coursepage',
1234: breadcrumb =>
1235: { href => '/adm/preferences?action=changecourseinit', text => 'Change Course Initialization Preference'},
1236: printmenu => 'yes',
1237: subroutine => \&verify_and_change_coursepage,
1238: }));
1239: }
1240:
1241: if ($env{'user.name'} =~ /^(albertel|fox|foxr|koretemey|korte|hallmat3|turtle|raeburn)$/) {
1242: push (@Options,({ action => 'debugtoggle',
1243: printmenu => 'yes',
1244: subroutine => \&toggle_debug,
1245: }));
1246: }
1247: my $html=&Apache::lonxml::xmlbegin();
1248: $r->print(<<ENDHEADER);
1249: $html
1250: <head>
1251: <title>LON-CAPA Preferences</title>
1252: </head>
1253: ENDHEADER
1254: my $call = undef;
1255: my $help = undef;
1256: my $printmenu = 'yes';
1257: foreach my $option (@Options) {
1258: if ($option->{'action'} eq $env{'form.action'}) {
1259: $call = $option->{'subroutine'};
1260: $printmenu = $option->{'printmenu'};
1261: if (exists($option->{'breadcrumb'})) {
1262: &Apache::lonhtmlcommon::add_breadcrumb
1263: ($option->{'breadcrumb'});
1264: }
1265: $help=$option->{'help'};
1266: }
1267: }
1268: $r->print(&Apache::loncommon::bodytag('Change Preferences'));
1269: $r->print(&Apache::lonhtmlcommon::breadcrumbs
1270: (undef,'Change Preferences',$help));
1271: if (defined($call)) {
1272: $call->($r);
1273: }
1274: if (($printmenu eq 'yes') && (!$env{'form.returnurl'})) {
1275: my $optionlist = '<table cellpadding="5">';
1276: if ($env{'user.name'} =~
1277: /^(albertel|kortemey|fox|foxr|korte|hallmat3|turtle|raeburn)$/
1278: ) {
1279: push (@Options,({ action => 'debugtoggle',
1280: linktext => 'Toggle Debug Messages',
1281: text => 'Current Debug status is -'.
1282: $env{'user.debug'}.'-.',
1283: href => '/adm/preferences',
1284: printmenu => 'yes',
1285: subroutine => \&toggle_debug,
1286: }));
1287: }
1288: foreach my $option(@Options) {
1289: my $optiontext = '';
1290: if (exists($option->{'href'})) {
1291: $optiontext .=
1292: '<a href="'.$option->{'href'}.
1293: '?action='.$option->{'action'}.'">'.
1294: &mt($option->{'linktext'}).'</a>';
1295: }
1296: if (exists($option->{'text'})) {
1297: $optiontext .= ' '.&mt($option->{'text'});
1298: }
1299: if ($optiontext ne '') {
1300: $optiontext = '<font size="+1">'.$optiontext.'</font>';
1301: my $helplink = ' ';
1302: if (exists($option->{'help'})) {
1303: $helplink = &Apache::loncommon::help_open_topic
1304: ($option->{'help'});
1305: }
1306: $optionlist .= '<tr>'.
1307: '<td>'.$helplink.'</td>'.
1308: '<td>'.$optiontext.'</td>'.
1309: '</tr>';
1310: }
1311: }
1312: $optionlist .= '</table>';
1313: $r->print($optionlist);
1314: } elsif ($env{'form.returnurl'}) {
1315: $r->print('<br /><a href="'.$env{'form.returnurl'}.'"><font size="+1">'.
1316: &mt('Return').'</font></a>');
1317: }
1318: $r->print(&Apache::loncommon::endbodytag().'</html>');
1319: return OK;
1320: }
1321:
1322: sub toggle_debug {
1323: if ($env{'user.debug'}) {
1324: &Apache::lonnet::delenv('user\.debug');
1325: } else {
1326: &Apache::lonnet::appenv('user.debug' => 1);
1327: }
1328: }
1329:
1330: 1;
1331: __END__
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