1: # The LearningOnline Network
2: # Preferences
3: #
4: # $Id: lonpreferences.pm,v 1.82 2006/05/01 22:15:17 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 $onselect='checked="checked"';
102: my $offselect='';
103: if ($userenv{'wysiwygeditor'} eq 'on') {
104: $onselect='';
105: $offselect='checked="checked"';
106: }
107: my $switchoff=&mt('Disable WYSIWYG editor');
108: my $switchon=&mt('Enable WYSIWYG editor');
109: $r->print(<<ENDLSCREEN);
110: <form name="prefs" 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: $r->print(<<ENDLSCREEN);
150: <form name="prefs" action="/adm/preferences" method="POST">
151: <input type="hidden" name="action" value="verify_and_change_languages" />
152: <br />$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: $r->print(<<ENDLSCREEN);
202: <br />
203:
204: <form name="prefs" action="/adm/preferences" method="POST">
205: <input type="hidden" name="action" value="verify_and_change_texengine" />
206: <p>$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?inhibitmenu=yes&texengine=tth" width="400" hieght="200"></iframe>
212: </p>
213: <p>jsMath <br />
214: $jsMath_start
215: <script type="text/javascript">
216: if (jsMath.nofonts == 1) {
217: document.writeln
218: ('<center><div style="padding: 10; border-style: solid; border-width:3;'
219: +' border-color: #DD0000; background-color: #FFF8F8; width: 75%; text-align: left">'
220: +'<small><font color="#AA0000"><b>Warning:</b> '
221: +'It looks like you don\\\'t have the TeX math fonts installed. '
222: +'The jsMath example on this page may not look right without them. '
223: +'The <a href="http://www.math.union.edu/locate/jsMath/" target="_blank"> '
224: +'jsMath Home Page</a> has information on how to download the '
225: +'needed fonts. In the meantime, jsMath will do the best it can '
226: +'with the fonts you have, but it may not be pretty and some equations '
227: +'may not be rendered correctly. '
228: +'</font></small></div></center>');
229: }
230: </script>
231: <iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=jsMath" width="400" hieght="200"></iframe>
232:
233: </p>
234: <p> Convert to Images <br />
235: <br />
236: <iframe src="/res/adm/pages/math_example.tex?inhibitmenu=yes&texengine=mimetex" width="400" hieght="200"></iframe>
237: </p>
238: ENDLSCREEN
239: if ($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="prefs" action="/adm/preferences" method="POST">
308: <input type="hidden" name="action" value="verify_and_change_rolespref" />
309: <br /><label>Enable Recent Roles Hotlist:
310: <input type="checkbox" $checked name="recentroles" value="true" /></label>
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: $r->print(<<ENDSCREEN);
365: <form name="prefs" action="/adm/preferences" method="POST">
366: <input type="hidden" name="action" value="verify_and_change_screenname" />
367: <br />New screenname (shown if you post anonymously):
368: <input type="text" size="20" value="$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: $forwardingHelp <br />
433: <form name="prefs" action="/adm/preferences" method="POST">
434: <input type="hidden" name="action" value="verify_and_change_msgforward" />
435: New Forwarding Address(es) (<tt>user:domain,user:domain,...</tt>):
436: <input type="text" size="40" value="$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=&Apache::loncommon::get_users_function();
509: my $domain=&Apache::loncommon::determinedomain();
510: my %colortypes=('pgbg' => 'Page Background',
511: 'tabbg' => 'Header Background',
512: 'sidebg'=> 'Header Border',
513: 'font' => 'Font',
514: 'link' => 'Un-Visited Link',
515: 'vlink' => 'Visited Link',
516: 'alink' => 'Active Link');
517: my $start_data_table = &Apache::loncommon::start_data_table();
518: my $chtable='';
519: foreach my $item (sort(keys(%colortypes))) {
520: my $curcol=&Apache::loncommon::designparm($function.'.'.$item,$domain);
521: $chtable.=&Apache::loncommon::start_data_table_row().
522: '<td>'.$colortypes{$item}.'</td><td bgcolor="'.$curcol.
523: '"> </td><td><input name="'.$item.
524: '" size="10" value="'.$curcol.
525: '" /></td><td><a href="javascript:pjump('."'color_custom','".$colortypes{$item}.
526: "','".$curcol."','"
527: .$item."','parmform.pres','psub'".');">Select</a></td>'.
528: &Apache::loncommon::end_data_table_row();
529: }
530: my $end_data_table = &Apache::loncommon::end_data_table();
531: my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
532: $r->print(<<ENDCOL);
533: <script type="text/javascript">
534:
535: function pclose() {
536: parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
537: "height=350,width=350,scrollbars=no,menubar=no");
538: parmwin.close();
539: }
540:
541: $pjump_def
542:
543: function psub() {
544: pclose();
545: if (document.parmform.pres_marker.value!='') {
546: if (document.parmform.pres_type.value!='') {
547: eval('document.prefs.'+
548: document.parmform.pres_marker.value+
549: '.value=document.parmform.pres_value.value;');
550: }
551: } else {
552: document.parmform.pres_value.value='';
553: document.parmform.pres_marker.value='';
554: }
555: }
556:
557:
558: </script>
559: <form name="parmform">
560: <input type="hidden" name="pres_marker" />
561: <input type="hidden" name="pres_type" />
562: <input type="hidden" name="pres_value" />
563: </form>
564: <form name="prefs" action="/adm/preferences" method="POST">
565: <input type="hidden" name="action" value="verify_and_change_colors" />
566: $start_data_table
567: $chtable
568: $end_data_table
569: </table>
570: <input type="submit" value="Change Custom Colors" />
571: <input type="submit" name="resetall" value="Reset All Colors to Default" />
572: </form>
573: ENDCOL
574: }
575:
576: sub verify_and_change_colors {
577: my $r = shift;
578: # figure out colors
579: my $function=&Apache::loncommon::get_users_function();
580: my $domain=&Apache::loncommon::determinedomain();
581: my %colortypes=('pgbg' => 'Page Background',
582: 'tabbg' => 'Header Background',
583: 'sidebg'=> 'Header Border',
584: 'font' => 'Font',
585: 'link' => 'Un-Visited Link',
586: 'vlink' => 'Visited Link',
587: 'alink' => 'Active Link');
588:
589: my $message='';
590: foreach my $item (keys %colortypes) {
591: my $color=$env{'form.'.$item};
592: my $entry='color.'.$function.'.'.$item;
593: if (($color=~/^\#[0-9A-Fa-f]{6}$/) && (!$env{'form.resetall'})) {
594: &Apache::lonnet::put('environment',{$entry => $color});
595: &Apache::lonnet::appenv('environment.'.$entry => $color);
596: $message.='Set '.$colortypes{$item}.' to '.$color.'<br />';
597: } else {
598: &Apache::lonnet::del('environment',[$entry]);
599: &Apache::lonnet::delenv('environment\.'.$entry);
600: $message.='Reset '.$colortypes{$item}.'<br />';
601: }
602: }
603: $r->print(<<ENDVCCOL);
604: $message
605: <form name="client" action="/adm/preferences" method="POST">
606: <input type="hidden" name="action" value="changecolors" />
607: </form>
608: ENDVCCOL
609: }
610:
611: ######################################################
612: # password handler subroutines #
613: ######################################################
614: sub passwordchanger {
615: # This function is a bit of a mess....
616: # Passwords are encrypted using londes.js (DES encryption)
617: my $r = shift;
618: my $errormessage = shift;
619: $errormessage = ($errormessage || '');
620: my $user = $env{'user.name'};
621: my $domain = $env{'user.domain'};
622: my $homeserver = $env{'user.home'};
623: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
624: # Check for authentication types that allow changing of the password.
625: return if ($currentauth !~ /^(unix|internal):/);
626: #
627: # Generate keys
628: my ($lkey_cpass ,$ukey_cpass ) = &des_keys();
629: my ($lkey_npass1,$ukey_npass1) = &des_keys();
630: my ($lkey_npass2,$ukey_npass2) = &des_keys();
631: # Store the keys in the log files
632: my $lonhost = $r->dir_config('lonHostID');
633: my $logtoken=Apache::lonnet::reply('tmpput:'
634: .$ukey_cpass . $lkey_cpass .'&'
635: .$ukey_npass1 . $lkey_npass1.'&'
636: .$ukey_npass2 . $lkey_npass2,
637: $lonhost);
638: # Hexify the keys for output as javascript variables
639: $ukey_cpass = hex($ukey_cpass);
640: $lkey_cpass = hex($lkey_cpass);
641: $ukey_npass1= hex($ukey_npass1);
642: $lkey_npass1= hex($lkey_npass1);
643: $ukey_npass2= hex($ukey_npass2);
644: $lkey_npass2= hex($lkey_npass2);
645: # Output javascript to deal with passwords
646: # Output DES javascript
647: {
648: my $include = $r->dir_config('lonIncludes');
649: my $jsh=Apache::File->new($include."/londes.js");
650: $r->print(<$jsh>);
651: }
652: $r->print(<<ENDFORM);
653: <script language="JavaScript">
654:
655: function send() {
656: uextkey=this.document.client.elements.ukey_cpass.value;
657: lextkey=this.document.client.elements.lkey_cpass.value;
658: initkeys();
659:
660: this.document.pserver.elements.currentpass.value
661: =crypted(this.document.client.elements.currentpass.value);
662:
663: uextkey=this.document.client.elements.ukey_npass1.value;
664: lextkey=this.document.client.elements.lkey_npass1.value;
665: initkeys();
666: this.document.pserver.elements.newpass_1.value
667: =crypted(this.document.client.elements.newpass_1.value);
668:
669: uextkey=this.document.client.elements.ukey_npass2.value;
670: lextkey=this.document.client.elements.lkey_npass2.value;
671: initkeys();
672: this.document.pserver.elements.newpass_2.value
673: =crypted(this.document.client.elements.newpass_2.value);
674:
675: this.document.pserver.submit();
676: }
677:
678: </script>
679: $errormessage
680:
681: <p>
682: <!-- We separate the forms into 'server' and 'client' in order to
683: ensure that unencrypted passwords will not be sent out by a
684: crappy browser -->
685:
686: <form name="pserver" action="/adm/preferences" method="POST">
687: <input type="hidden" name="logtoken" value="$logtoken" />
688: <input type="hidden" name="action" value="verify_and_change_pass" />
689: <input type="hidden" name="currentpass" value="" />
690: <input type="hidden" name="newpass_1" value="" />
691: <input type="hidden" name="newpass_2" value="" />
692: </form>
693:
694: <form name="client" >
695: <table>
696: <tr><td align="right"> Current password: </td>
697: <td><input type="password" name="currentpass" size="10"/> </td></tr>
698: <tr><td align="right"> New password: </td>
699: <td><input type="password" name="newpass_1" size="10" /> </td></tr>
700: <tr><td align="right"> Confirm password: </td>
701: <td><input type="password" name="newpass_2" size="10" /> </td></tr>
702: <tr><td colspan="2" align="center">
703: <input type="button" value="Change Password" onClick="send();">
704: </table>
705: <input type="hidden" name="ukey_cpass" value="$ukey_cpass" />
706: <input type="hidden" name="lkey_cpass" value="$lkey_cpass" />
707: <input type="hidden" name="ukey_npass1" value="$ukey_npass1" />
708: <input type="hidden" name="lkey_npass1" value="$lkey_npass1" />
709: <input type="hidden" name="ukey_npass2" value="$ukey_npass2" />
710: <input type="hidden" name="lkey_npass2" value="$lkey_npass2" />
711: </form>
712: </p>
713: ENDFORM
714: #
715: return;
716: }
717:
718: sub verify_and_change_password {
719: my $r = shift;
720: my $user = $env{'user.name'};
721: my $domain = $env{'user.domain'};
722: my $homeserver = $env{'user.home'};
723: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
724: # Check for authentication types that allow changing of the password.
725: return if ($currentauth !~ /^(unix|internal):/);
726: #
727: my $currentpass = $env{'form.currentpass'};
728: my $newpass1 = $env{'form.newpass_1'};
729: my $newpass2 = $env{'form.newpass_2'};
730: my $logtoken = $env{'form.logtoken'};
731: # Check for empty data
732: unless (defined($currentpass) &&
733: defined($newpass1) &&
734: defined($newpass2) ){
735: &passwordchanger($r,"<p>\n<font color='#ff0000'>ERROR</font>".
736: "Password data was blank.\n</p>");
737: return;
738: }
739: # Get the keys
740: my $lonhost = $r->dir_config('lonHostID');
741: my $tmpinfo = Apache::lonnet::reply('tmpget:'.$logtoken,$lonhost);
742: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
743: # I do not a have a better idea about how to handle this
744: $r->print(<<ENDERROR);
745: <p>
746: <font color="#ff0000">ERROR:</font> Unable to retrieve stored token for
747: password decryption. Please log out and try again.
748: </p>
749: ENDERROR
750: # Probably should log an error here
751: return 1;
752: }
753: my ($ckey,$n1key,$n2key)=split(/&/,$tmpinfo);
754: #
755: $currentpass = &des_decrypt($ckey ,$currentpass);
756: $newpass1 = &des_decrypt($n1key,$newpass1);
757: $newpass2 = &des_decrypt($n2key,$newpass2);
758: #
759: if ($newpass1 ne $newpass2) {
760: &passwordchanger($r,
761: '<font color="#ff0000">ERROR:</font>'.
762: 'The new passwords you entered do not match. '.
763: 'Please try again.');
764: return 1;
765: }
766: if (length($newpass1) < 7) {
767: &passwordchanger($r,
768: '<font color="#ff0000">ERROR:</font>'.
769: 'Passwords must be a minimum of 7 characters long. '.
770: 'Please try again.');
771: return 1;
772: }
773: #
774: # Check for bad characters
775: my $badpassword = 0;
776: foreach (split(//,$newpass1)) {
777: $badpassword = 1 if ((ord($_)<32)||(ord($_)>126));
778: }
779: if ($badpassword) {
780: # I can't figure out how to enter bad characters on my browser.
781: &passwordchanger($r,<<ENDERROR);
782: <font color="#ff0000">ERROR:</font>
783: The password you entered contained illegal characters.<br />
784: Valid characters are: space and <br />
785: <pre>
786: !"\#$%&\'()*+,-./0123456789:;<=>?\@
787: ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_\`abcdefghijklmnopqrstuvwxyz{|}~
788: </pre>
789: ENDERROR
790: }
791: #
792: # Change the password (finally)
793: my $result = &Apache::lonnet::changepass
794: ($user,$domain,$currentpass,$newpass1,$homeserver);
795: # Inform the user the password has (not?) been changed
796: if ($result =~ /^ok$/) {
797: $r->print(<<"ENDTEXT");
798: <h2>The password for $user was successfully changed</h2>
799: ENDTEXT
800: } else {
801: # error error: run in circles, scream and shout
802: $r->print(<<ENDERROR);
803: <h2><font color="#ff0000">The password for $user was not changed</font></h2>
804: Please make sure your old password was entered correctly.
805: ENDERROR
806: return 1;
807: }
808: return;
809: }
810:
811: ################################################################
812: # discussion display subroutines
813: ################################################################
814: sub discussionchanger {
815: my $r = shift;
816: my $user = $env{'user.name'};
817: my $domain = $env{'user.domain'};
818: my %userenv = &Apache::lonnet::get
819: ('environment',['discdisplay','discmarkread']);
820: my $discdisp = 'allposts';
821: my $discmark = 'onmark';
822:
823: if (defined($userenv{'discdisplay'})) {
824: unless ($userenv{'discdisplay'} eq '') {
825: $discdisp = $userenv{'discdisplay'};
826: }
827: }
828: if (defined($userenv{'discmarkread'})) {
829: unless ($userenv{'discdisplay'} eq '') {
830: $discmark = $userenv{'discmarkread'};
831: }
832: }
833:
834: my $newdisp = 'unread';
835: my $newmark = 'ondisp';
836:
837: my $function = &Apache::loncommon::get_users_function();
838: my $color = &Apache::loncommon::designparm($function.'.tabbg',
839: $env{'user.domain'});
840: my %lt = &Apache::lonlocal::texthash(
841: 'pref' => 'Display Preference',
842: 'curr' => 'Current setting ',
843: 'actn' => 'Action',
844: 'sdpf' => 'Set display preferences for discussion posts for both bulletin boards and individual resources in all your courses.',
845: 'prca' => 'Preferences can be set that determine',
846: 'whpo' => 'Which posts are displayed when you display a bulletin board or resource, and',
847: 'unwh' => 'Under what circumstances posts are identfied as "New"',
848: 'allposts' => 'All posts',
849: 'unread' => 'New posts only',
850: 'ondisp' => 'Once displayed',
851: 'onmark' => 'Once marked as read',
852: 'disa' => 'Posts displayed?',
853: 'npmr' => 'New posts cease to be identified as "New"?',
854: 'thde' => 'The preferences you set here can be overridden within each individual discussion.',
855: 'chgt' => 'Change to '
856: );
857: my $dispchange = $lt{'unread'};
858: my $markchange = $lt{'ondisp'};
859: my $currdisp = $lt{'allposts'};
860: my $currmark = $lt{'onmark'};
861:
862: if ($discdisp eq 'unread') {
863: $dispchange = $lt{'allposts'};
864: $currdisp = $lt{'unread'};
865: $newdisp = 'allposts';
866: }
867:
868: if ($discmark eq 'ondisp') {
869: $markchange = $lt{'onmark'};
870: $currmark = $lt{'ondisp'};
871: $newmark = 'onmark';
872: }
873:
874: $r->print(<<"END");
875: <form name="prefs" action="/adm/preferences" method="POST">
876: <input type="hidden" name="action" value="verify_and_change_discussion" />
877: <br />
878: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li></ol>
879: <br />
880: <br />
881: END
882: $r->print(&Apache::loncommon::start_data_table());
883: $r->print(<<"END");
884: <tr>
885: <th>$lt{'pref'}</th>
886: <th>$lt{'curr'}</th>
887: <th>$lt{'actn'}?</th>
888: </tr>
889: END
890: $r->print(&Apache::loncommon::start_data_table_row());
891: $r->print(<<"END");
892: <td>$lt{'disa'}</td>
893: <td>$lt{$discdisp}</td>
894: <td><label><input type="checkbox" name="discdisp" /><input type="hidden" name="newdisp" value="$newdisp" /> $lt{'chgt'} "$dispchange"</label></td>
895: END
896: $r->print(&Apache::loncommon::end_data_table_row().
897: &Apache::loncommon::start_data_table_row());
898: $r->print(<<"END");
899: <td>$lt{'npmr'}</td>
900: <td>$lt{$discmark}</td>
901: <td><label><input type="checkbox" name="discmark" /><input type="hidden" name="newmark" value="$newmark" /> $lt{'chgt'} "$markchange"</label></td>
902: </tr>
903: END
904: $r->print(&Apache::loncommon::end_data_table_row().
905: &Apache::loncommon::end_data_table());
906: $r->print(<<"END");
907: <br />
908: <br />
909: <input type="submit" name="sub" value="Store Changes" />
910: <br />
911: <br />
912: Note: $lt{'thde'}
913: </form>
914: END
915: }
916:
917: sub verify_and_change_discussion {
918: my $r = shift;
919: my $user = $env{'user.name'};
920: my $domain = $env{'user.domain'};
921: my $message='';
922: if (defined($env{'form.discdisp'}) ) {
923: my $newdisp = $env{'form.newdisp'};
924: if ($newdisp eq 'unread') {
925: $message .='In discussions: only new posts will be displayed.<br/>';
926: &Apache::lonnet::put('environment',{'discdisplay' => $newdisp});
927: &Apache::lonnet::appenv('environment.discdisplay' => $newdisp);
928: } else {
929: $message .= 'In discussions: all posts will be displayed.<br/>';
930: &Apache::lonnet::del('environment',['discdisplay']);
931: &Apache::lonnet::delenv('environment\.discdisplay');
932: }
933: }
934: if (defined($env{'form.discmark'}) ) {
935: my $newmark = $env{'form.newmark'};
936: if ($newmark eq 'ondisp') {
937: $message.='In discussions: new posts will be cease to be identified as "new" after display.<br/>';
938: &Apache::lonnet::put('environment',{'discmarkread' => $newmark});
939: &Apache::lonnet::appenv('environment.discmarkread' => $newmark);
940: } else {
941: $message.='In discussions: posts will be identified as "new" until marked as read by the reader.<br/>';
942: &Apache::lonnet::del('environment',['discmarkread']);
943: &Apache::lonnet::delenv('environment\.discmarkread');
944: }
945: }
946: $r->print(<<ENDVCSCREEN);
947: $message
948: ENDVCSCREEN
949: }
950:
951: ################################################################
952: # Subroutines for page display on course access (Course Coordinators)
953: ################################################################
954: sub coursedisplaychanger {
955: my $r = shift;
956: my $user = $env{'user.name'};
957: my $domain = $env{'user.domain'};
958: my %userenv = &Apache::lonnet::get('environment',['course_init_display']);
959: my $currvalue = 'whatsnew';
960: my $firstselect = '';
961: my $whatsnewselect = 'checked="checked"';
962: if (exists($userenv{'course_init_display'})) {
963: if ($userenv{'course_init_display'} eq 'firstres') {
964: $currvalue = 'firstres';
965: $firstselect = 'checked="checked"';
966: $whatsnewselect = '';
967: }
968: }
969: my %pagenames = (
970: firstres => 'First resource',
971: whatsnew => "What's new page",
972: );
973: my $whatsnew_off=&mt('Display the [_1] in the course.','<b>first resource</b>');
974: my $whatsnew_on=&mt('Display the "[_1]" page - a summary of items in the course which require attention.',"<b>What's New</b>");
975:
976: $r->print('<br /><b>'.&mt('Set the default page to be displayed when you select a course role').'</b> '.&mt('(Currently: [_1])',$pagenames{$currvalue}).'<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 />');
977: $r->print(<<ENDLSCREEN);
978: <form name="prefs" action="/adm/preferences" method="POST">
979: <input type="hidden" name="action" value="verify_and_change_coursepage" />
980: <br />
981: <label><input type="radio" name="newdisp" value="firstres" $firstselect /> $whatsnew_off</label><br />
982: <label><input type="radio" name="newdisp" value="whatsnew" $whatsnewselect /> $whatsnew_on</label><input type="hidden" name="refpage" value="$env{'form.refpage'}" />
983: ENDLSCREEN
984: $r->print('<br /><br /><input type="submit" value="'.&mt('Change').'" />
985: </form>');
986: }
987:
988: sub verify_and_change_coursepage {
989: my $r = shift;
990: my $message='';
991: my %lt = &Apache::lonlocal::texthash(
992: 'defs' => 'Default now set',
993: 'when' => 'when you select a course role from the roles screen',
994: 'ywbt' => 'you will be taken to the start of the course.',
995: 'apwb' => 'a page will be displayed that lists items in the course that may require action from you.',
996: 'gtts' => 'Go to the start of the course',
997: 'dasp' => "Display the What's New page listing course action items",
998: );
999: my $newdisp = $env{'form.newdisp'};
1000: $message = '<b>'.$lt{'defs'}.'</b>: '.$lt{'when'}.', ';
1001: if ($newdisp eq 'firstres') {
1002: $message .= $lt{'ywbt'}.'<br/>';
1003: &Apache::lonnet::put('environment',{'course_init_display' => $newdisp});
1004: &Apache::lonnet::appenv('environment.course_init_display' => $newdisp);
1005: } else {
1006: $message .= $lt{'apwb'}.'<br/>';
1007: &Apache::lonnet::del('environment',['course_init_display']);
1008: &Apache::lonnet::delenv('environment\.course_init_display');
1009: }
1010: my $refpage = $env{'form.refpage'};
1011: if (($env{'request.course.fn'}) && ($env{'request.course.id'})) {
1012: if ($newdisp eq 'firstres') {
1013: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1014: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1015: my ($furl,$ferr)=
1016: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
1017: $message .= '<br /><font size="+1"><a href="'.$furl.'">'.$lt{'gtts'}.' <i>'.&mt('now').'</i></a></font>';
1018: } else {
1019: $message .= '<br /><font size="+1"><a href="/adm/whatsnew?refpage='.
1020: $refpage.'">'.$lt{'dasp'}.'</a></font>';
1021: }
1022: }
1023: $r->print(<<ENDVCSCREEN);
1024: $message
1025: <br /><br />
1026: ENDVCSCREEN
1027: }
1028:
1029:
1030: ######################################################
1031: # other handler subroutines #
1032: ######################################################
1033:
1034: ################################################################
1035: # Main handler #
1036: ################################################################
1037: sub handler {
1038: my $r = shift;
1039: my $user = $env{'user.name'};
1040: my $domain = $env{'user.domain'};
1041: &Apache::loncommon::content_type($r,'text/html');
1042: # Some pages contain DES keys and should not be cached.
1043: &Apache::loncommon::no_cache($r);
1044: $r->send_http_header;
1045: return OK if $r->header_only;
1046: #
1047: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1048: ['action','wysiwyg','returnurl','refpage']);
1049: #
1050: &Apache::lonhtmlcommon::clear_breadcrumbs();
1051: &Apache::lonhtmlcommon::add_breadcrumb
1052: ({href => '/adm/preferences',
1053: text => 'Set User Preferences'});
1054:
1055: my @Options;
1056: # Determine current authentication method
1057: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
1058: if ($currentauth =~ /^(unix|internal):/) {
1059: push (@Options,({ action => 'changepass',
1060: linktext => 'Change Password',
1061: href => '/adm/preferences',
1062: help => 'Change_Password',
1063: subroutine => \&passwordchanger,
1064: breadcrumb =>
1065: { href => '/adm/preferences?action=changepass',
1066: text => 'Change Password'},
1067: },
1068: { action => 'verify_and_change_pass',
1069: subroutine => \&verify_and_change_password,
1070: breadcrumb =>
1071: { href =>'/adm/preferences?action=changepass',
1072: text => 'Change Password'},
1073: printmenu => 'not_on_error',
1074: }));
1075: }
1076: push (@Options,({ action => 'changescreenname',
1077: linktext => 'Change Screen Name',
1078: href => '/adm/preferences',
1079: help => 'Prefs_Screen_Name_Nickname',
1080: subroutine => \&screennamechanger,
1081: breadcrumb =>
1082: { href => '/adm/preferences?action=changescreenname',
1083: text => 'Change Screen Name'},
1084: },
1085: { action => 'verify_and_change_screenname',
1086: subroutine => \&verify_and_change_screenname,
1087: breadcrumb =>
1088: { href => '/adm/preferences?action=changescreenname',
1089: text => 'Change Screen Name'},
1090: printmenu => 'yes',
1091: }));
1092:
1093: push (@Options,({ action => 'changemsgforward',
1094: linktext => 'Change Message Forwarding and Notification Addresses',
1095: href => '/adm/preferences',
1096: help => 'Prefs_Forwarding',
1097: breadcrumb =>
1098: { href => '/adm/preferences?action=changemsgforward',
1099: text => 'Change Message Forwarding'},
1100: subroutine => \&msgforwardchanger,
1101: },
1102: { action => 'verify_and_change_msgforward',
1103: breadcrumb =>
1104: { href => '/adm/preferences?action=changemsgforward',
1105: text => 'Change Message Forwarding'},
1106: printmenu => 'yes',
1107: subroutine => \&verify_and_change_msgforward }));
1108: my $aboutmeaction=
1109: '/adm/'.$env{'user.domain'}.'/'.$env{'user.name'}.'/aboutme';
1110: push (@Options,{ action => 'none',
1111: linktext =>
1112: q{Edit the 'About Me' Personal Information Screen},
1113: help => 'Prefs_About_Me',
1114: href => $aboutmeaction});
1115: push (@Options,({ action => 'changecolors',
1116: linktext => 'Change Color Scheme',
1117: href => '/adm/preferences',
1118: help => 'Change_Colors',
1119: breadcrumb =>
1120: { href => '/adm/preferences?action=changecolors',
1121: text => 'Change Colors'},
1122: subroutine => \&colorschanger,
1123: },
1124: { action => 'verify_and_change_colors',
1125: breadcrumb =>
1126: { href => '/adm/preferences?action=changecolors',
1127: text => 'Change Colors'},
1128: printmenu => 'yes',
1129: subroutine => \&verify_and_change_colors,
1130: }));
1131: push (@Options,({ action => 'changelanguages',
1132: linktext => 'Change Language Preferences',
1133: href => '/adm/preferences',
1134: help => 'Prefs_Language',
1135: breadcrumb=>
1136: { href => '/adm/preferences?action=changelanguages',
1137: text => 'Change Language'},
1138: subroutine => \&languagechanger,
1139: },
1140: { action => 'verify_and_change_languages',
1141: breadcrumb=>
1142: {href => '/adm/preferences?action=changelanguages',
1143: text => 'Change Language'},
1144: printmenu => 'yes',
1145: subroutine=>\&verify_and_change_languages, }
1146: ));
1147: push (@Options,({ action => 'changewysiwyg',
1148: linktext => 'Change WYSIWYG Editor Preferences',
1149: href => '/adm/preferences',
1150: breadcrumb =>
1151: { href => '/adm/preferences?action=changewysiwyg',
1152: text => 'Change WYSIWYG Preferences'},
1153: subroutine => \&wysiwygchanger,
1154: },
1155: { action => 'set_wysiwyg',
1156: breadcrumb =>
1157: { href => '/adm/preferences?action=changewysiwyg',
1158: text => 'Change WYSIWYG Preferences'},
1159: printmenu => 'yes',
1160: subroutine => \&verify_and_change_wysiwyg, }
1161: ));
1162: push (@Options,({ action => 'changediscussions',
1163: linktext => 'Change Discussion Display Preferences',
1164: href => '/adm/preferences',
1165: help => 'Change_Discussion_Display',
1166: breadcrumb =>
1167: { href => '/adm/preferences?action=changediscussions',
1168: text => 'Change Discussion Preferences'},
1169: subroutine => \&discussionchanger,
1170: },
1171: { action => 'verify_and_change_discussion',
1172: breadcrumb =>
1173: { href => '/adm/preferences?action=changediscussions',
1174: text => 'Change Discussion Preferences'},
1175: printmenu => 'yes',
1176: subroutine => \&verify_and_change_discussion, }
1177: ));
1178:
1179: push (@Options,({ action => 'changerolespref',
1180: linktext => 'Change Roles Page Preferences',
1181: href => '/adm/preferences',
1182: subroutine => \&rolesprefchanger,
1183: breadcrumb =>
1184: { href => '/adm/preferences?action=changerolespref',
1185: text => 'Change Roles Pref'},
1186: },
1187: { action => 'verify_and_change_rolespref',
1188: subroutine => \&verify_and_change_rolespref,
1189: breadcrumb =>
1190: { href => '/adm/preferences?action=changerolespref',
1191: text => 'Change Roles Preferences'},
1192: printmenu => 'yes',
1193: }));
1194:
1195: push (@Options,({ action => 'changetexenginepref',
1196: linktext => 'Change How Math Equations Are Displayed',
1197: href => '/adm/preferences',
1198: subroutine => \&texenginechanger,
1199: breadcrumb =>
1200: { href => '/adm/preferences?action=changetexenginepref',
1201: text => 'Change Math Pref'},
1202: },
1203: { action => 'verify_and_change_texengine',
1204: subroutine => \&verify_and_change_texengine,
1205: breadcrumb =>
1206: { href => '/adm/preferences?action=changetexenginepref',
1207: text => 'Change Math Preferences'},
1208: printmenu => 'yes',
1209: }));
1210: if (&Apache::lonnet::allowed('whn',$env{'request.course.id'})
1211: || &Apache::lonnet::allowed('whn',$env{'request.course.id'}.'/'
1212: .$env{'request.course.sec'})) {
1213: push (@Options,({ action => 'changecourseinit',
1214: linktext => 'Change Course Initialization Preference',
1215: href => '/adm/preferences',
1216: subroutine => \&coursedisplaychanger,
1217: breadcrumb =>
1218: { href => '/adm/preferences?action=changecourseinit',
1219: text => 'Change Course Init. Pref.'},
1220: },
1221: { action => 'verify_and_change_coursepage',
1222: breadcrumb =>
1223: { href => '/adm/preferences?action=changecourseinit', text => 'Change Course Initialization Preference'},
1224: printmenu => 'yes',
1225: subroutine => \&verify_and_change_coursepage,
1226: }));
1227: }
1228:
1229: if ($env{'user.name'} =~ /^(albertel|fox|foxr|koretemey|korte|hallmat3|turtle|raeburn)$/) {
1230: push (@Options,({ action => 'debugtoggle',
1231: printmenu => 'yes',
1232: subroutine => \&toggle_debug,
1233: }));
1234: }
1235:
1236: $r->print(&Apache::loncommon::start_page('Change Preferences'));
1237:
1238: my $call = undef;
1239: my $help = undef;
1240: my $printmenu = 'yes';
1241: foreach my $option (@Options) {
1242: if ($option->{'action'} eq $env{'form.action'}) {
1243: $call = $option->{'subroutine'};
1244: $printmenu = $option->{'printmenu'};
1245: if (exists($option->{'breadcrumb'})) {
1246: &Apache::lonhtmlcommon::add_breadcrumb
1247: ($option->{'breadcrumb'});
1248: }
1249: $help=$option->{'help'};
1250: }
1251: }
1252: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Change Preferences',$help));
1253: my $error;
1254: if (defined($call)) {
1255: $error = $call->($r);
1256: }
1257: if ( ( ($printmenu eq 'yes')
1258: || ($printmenu eq 'not_on_error' && !$error) )
1259: && (!$env{'form.returnurl'})) {
1260: my $optionlist = '<table cellpadding="5">';
1261: if ($env{'user.name'} =~
1262: /^(albertel|kortemey|fox|foxr|korte|hallmat3|turtle|raeburn)$/
1263: ) {
1264: push (@Options,({ action => 'debugtoggle',
1265: linktext => 'Toggle Debug Messages',
1266: text => 'Current Debug status is -'.
1267: $env{'user.debug'}.'-.',
1268: href => '/adm/preferences',
1269: printmenu => 'yes',
1270: subroutine => \&toggle_debug,
1271: }));
1272: }
1273: foreach my $option(@Options) {
1274: my $optiontext = '';
1275: if (exists($option->{'href'})) {
1276: $optiontext .=
1277: '<a href="'.$option->{'href'}.
1278: '?action='.$option->{'action'}.'">'.
1279: &mt($option->{'linktext'}).'</a>';
1280: }
1281: if (exists($option->{'text'})) {
1282: $optiontext .= ' '.&mt($option->{'text'});
1283: }
1284: if ($optiontext ne '') {
1285: $optiontext = '<font size="+1">'.$optiontext.'</font>';
1286: my $helplink = ' ';
1287: if (exists($option->{'help'})) {
1288: $helplink = &Apache::loncommon::help_open_topic
1289: ($option->{'help'});
1290: }
1291: $optionlist .= '<tr>'.
1292: '<td>'.$helplink.'</td>'.
1293: '<td>'.$optiontext.'</td>'.
1294: '</tr>';
1295: }
1296: }
1297: $optionlist .= '</table>';
1298: $r->print($optionlist);
1299: } elsif ($env{'form.returnurl'}) {
1300: $r->print('<br /><a href="'.$env{'form.returnurl'}.'"><font size="+1">'.
1301: &mt('Return').'</font></a>');
1302: }
1303: $r->print(&Apache::loncommon::end_page());
1304: return OK;
1305: }
1306:
1307: sub toggle_debug {
1308: if ($env{'user.debug'}) {
1309: &Apache::lonnet::delenv('user\.debug');
1310: } else {
1311: &Apache::lonnet::appenv('user.debug' => 1);
1312: }
1313: }
1314:
1315: 1;
1316: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonpreferences.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface