1: # The LearningOnline Network
2: # Preferences
3: #
4: # $Id: lonpreferences.pm,v 1.22 2003/04/30 15:12:29 matthew 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: # (Internal Server Error Handler
29: #
30: # (Login Screen
31: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
32: # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
33: #
34: # 3/1/1 Gerd Kortemeyer)
35: #
36: # 3/1 Gerd Kortemeyer
37: #
38: # 2/13/02 2/14 2/15 Matthew Hall
39: #
40: # This package uses the "londes.js" javascript code.
41: #
42: # TODOs that have to be completed:
43: # interface with lonnet to change the password
44:
45: package Apache::lonpreferences;
46:
47: use strict;
48: use Apache::Constants qw(:common);
49: use Apache::File;
50: use Crypt::DES;
51: use DynaLoader; # for Crypt::DES version
52: use Apache::loncommon();
53:
54: #
55: # Write lonnet::passwd to do the call below.
56: # Use:
57: # my $answer=reply("encrypt:passwd:$udom:$uname:$upass",$tryserver);
58: #
59: ##################################################
60: # password associated functions #
61: ##################################################
62: sub des_keys {
63: # Make a new key for DES encryption.
64: # Each key has two parts which are returned seperately.
65: # Please note: Each key must be passed through the &hex function
66: # before it is output to the web browser. The hex versions cannot
67: # be used to decrypt.
68: my @hexstr=('0','1','2','3','4','5','6','7',
69: '8','9','a','b','c','d','e','f');
70: my $lkey='';
71: for (0..7) {
72: $lkey.=$hexstr[rand(15)];
73: }
74: my $ukey='';
75: for (0..7) {
76: $ukey.=$hexstr[rand(15)];
77: }
78: return ($lkey,$ukey);
79: }
80:
81: sub des_decrypt {
82: my ($key,$cyphertext) = @_;
83: my $keybin=pack("H16",$key);
84: my $cypher;
85: if ($Crypt::DES::VERSION>=2.03) {
86: $cypher=new Crypt::DES $keybin;
87: } else {
88: $cypher=new DES $keybin;
89: }
90: my $plaintext=
91: $cypher->decrypt(unpack("a8",pack("H16",substr($cyphertext,0,16))));
92: $plaintext.=
93: $cypher->decrypt(unpack("a8",pack("H16",substr($cyphertext,16,16))));
94: $plaintext=substr($plaintext,1,ord(substr($plaintext,0,1)) );
95: return $plaintext;
96: }
97:
98: ################################################################
99: # Handler subroutines #
100: ################################################################
101:
102: ################################################################
103: # Anonymous Discussion Name Change Subroutines #
104: ################################################################
105: sub screennamechanger {
106: my $r = shift;
107: my $user = $ENV{'user.name'};
108: my $domain = $ENV{'user.domain'};
109: my %userenv = &Apache::lonnet::get
110: ('environment',['screenname','nickname']);
111: my $screenname=$userenv{'screenname'};
112: my $nickname=$userenv{'nickname'};
113: my $bodytag=&Apache::loncommon::bodytag(
114: 'Change Your Nickname and Anonymous Screen Name');
115: $r->print(<<ENDSCREEN);
116: <html>
117: $bodytag
118:
119: <form name="server" action="/adm/preferences" method="post">
120: <input type="hidden" name="action" value="verify_and_change_screenname" />
121: <br />New screenname (shown if you post anonymously):
122: <input type="text" size="20" value="$screenname" name="screenname" />
123: <br />New nickname (shown if you post non-anonymously):
124: <input type="text" size="20" value="$nickname" name="nickname" />
125: <input type="submit" value="Change" />
126: </form>
127: </body>
128: </html>
129: ENDSCREEN
130: }
131:
132: sub verify_and_change_screenname {
133: my $r = shift;
134: my $user = $ENV{'user.name'};
135: my $domain = $ENV{'user.domain'};
136: # Screenname
137: my $newscreen = $ENV{'form.screenname'};
138: $newscreen=~s/[^ \w]//g;
139: my $message='';
140: if ($newscreen) {
141: &Apache::lonnet::put('environment',{'screenname' => $newscreen});
142: &Apache::lonnet::appenv('environment.screenname' => $newscreen);
143: $message='Set new screenname to '.$newscreen;
144: } else {
145: &Apache::lonnet::del('environment',['screenname']);
146: &Apache::lonnet::delenv('environment\.screenname');
147: $message='Reset screenname';
148: }
149: # Nickname
150: $message.='<br />';
151: $newscreen = $ENV{'form.nickname'};
152: $newscreen=~s/[^ \w]//g;
153: if ($newscreen) {
154: &Apache::lonnet::put('environment',{'nickname' => $newscreen});
155: &Apache::lonnet::appenv('environment.nickname' => $newscreen);
156: $message.='Set new nickname to '.$newscreen;
157: } else {
158: &Apache::lonnet::del('environment',['nickname']);
159: &Apache::lonnet::delenv('environment\.nickname');
160: $message.='Reset nickname';
161: }
162:
163: my $bodytag=&Apache::loncommon::bodytag(
164: 'Change Your Nickname and Anonymous Screen Name');
165: $r->print(<<ENDVCSCREEN);
166: <html>
167: $bodytag
168: </p>
169: $message
170: </body></html>
171: ENDVCSCREEN
172: }
173:
174: ################################################################
175: # Message Forward #
176: ################################################################
177:
178: sub msgforwardchanger {
179: my $r = shift;
180: my $user = $ENV{'user.name'};
181: my $domain = $ENV{'user.domain'};
182: my %userenv = &Apache::lonnet::get('environment',['msgforward']);
183: my $msgforward=$userenv{'msgforward'};
184: my $notification=$userenv{'notification'};
185: my $critnotification=$userenv{'critnotification'};
186: my $bodytag=&Apache::loncommon::bodytag(
187: 'Change Your Message Forwarding and Notification');
188: $r->print(<<ENDMSG);
189: <html>
190: $bodytag
191:
192: <form name="server" action="/adm/preferences" method="post">
193: <input type="hidden" name="action" value="verify_and_change_msgforward" />
194: New Forwarding Address(es) (<tt>user:domain,user:domain,...</tt>):
195: <input type="text" size="40" value="$msgforward" name="msgforward" /><hr />
196: New Message Notification Email Address(es) (<tt>joe\@doe.com,jane\@doe.edu,...</tt>):
197: <input type="text" size="40" value="$notification" name="notification" /><hr />
198: New Critical Message Notification Email Address(es) (<tt>joe\@doe.com,jane\@doe.edu,...</tt>):
199: <input type="text" size="40" value="$critnotification" name="critnotification" /><hr />
200: <input type="submit" value="Change" />
201: </form>
202: </body>
203: </html>
204: ENDMSG
205: }
206:
207: sub verify_and_change_msgforward {
208: my $r = shift;
209: my $user = $ENV{'user.name'};
210: my $domain = $ENV{'user.domain'};
211: my $newscreen = '';
212: my $message='';
213: foreach (split(/\,/,$ENV{'form.msgforward'})) {
214: my ($msuser,$msdomain)=split(/[\@\:]/,$_);
215: $msuser=~s/\W//g;
216: $msdomain=~s/\W//g;
217: if (($msuser) && ($msdomain)) {
218: if (&Apache::lonnet::homeserver($msuser,$msdomain) ne 'no_host') {
219: $newscreen.=$msuser.':'.$msdomain.',';
220: } else {
221: $message.='No such user: '.$msuser.':'.$msdomain.'<br>';
222: }
223: }
224: }
225: $newscreen=~s/\,$//;
226: if ($newscreen) {
227: &Apache::lonnet::put('environment',{'msgforward' => $newscreen});
228: &Apache::lonnet::appenv('environment.msgforward' => $newscreen);
229: $message.='Set new message forwarding to '.$newscreen.'<br />';
230: } else {
231: &Apache::lonnet::del('environment',['msgforward']);
232: &Apache::lonnet::delenv('environment\.msgforward');
233: $message.='Reset message forwarding<br />';
234: }
235: my $notification=$ENV{'form.notification'};
236: $notification=~s/\s//gs;
237: if ($notification) {
238: &Apache::lonnet::put('environment',{'notification' => $notification});
239: &Apache::lonnet::appenv('environment.notification' => $notification);
240: $message.='Set message notification address to '.$notification.'<br />';
241: } else {
242: &Apache::lonnet::del('environment',['notification']);
243: &Apache::lonnet::delenv('environment\.notification');
244: $message.='Reset message notification<br />';
245: }
246: my $critnotification=$ENV{'form.critnotification'};
247: $critnotification=~s/\s//gs;
248: if ($critnotification) {
249: &Apache::lonnet::put('environment',{'critnotification' => $critnotification});
250: &Apache::lonnet::appenv('environment.critnotification' => $critnotification);
251: $message.='Set critical message notification address to '.$critnotification;
252: } else {
253: &Apache::lonnet::del('environment',['critnotification']);
254: &Apache::lonnet::delenv('environment\.critnotification');
255: $message.='Reset critical message notification<br />';
256: }
257: my $bodytag=&Apache::loncommon::bodytag(
258: 'Change Your Message Forwarding and Notifications');
259: $r->print(<<ENDVCMSG);
260: <html>
261: $bodytag
262: </p>
263: $message
264: </body></html>
265: ENDVCMSG
266: }
267:
268: ################################################################
269: # Colors #
270: ################################################################
271:
272: sub colorschanger {
273: my $r = shift;
274: my $bodytag=&Apache::loncommon::bodytag(
275: 'Change Color Scheme for Current Role Type','',
276: 'onUnload="pclose();"');
277: # figure out colors
278: my $function='student';
279: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
280: $function='coordinator';
281: }
282: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
283: $function='admin';
284: }
285: if (($ENV{'request.role'}=~/^(au|ca)/) ||
286: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
287: $function='author';
288: }
289: my $domain=&Apache::loncommon::determinedomain();
290: my %colortypes=('pgbg' => 'Page Background',
291: 'tabbg' => 'Header Background',
292: 'sidebg'=> 'Header Border',
293: 'font' => 'Font',
294: 'link' => 'Un-Visited Link',
295: 'vlink' => 'Visited Link',
296: 'alink' => 'Active Link');
297: my $chtable='';
298: foreach my $item (sort(keys(%colortypes))) {
299: my $curcol=&Apache::loncommon::designparm($function.'.'.$item,$domain);
300: $chtable.='<tr><td>'.$colortypes{$item}.'</td><td bgcolor="'.$curcol.
301: '"> </td><td><input name="'.$item.
302: '" size="10" value="'.$curcol.
303: '" /></td><td><a href="javascript:pjump('."'color_custom','".$colortypes{$item}.
304: "','".$curcol."','"
305: .$item."','parmform.pres','psub'".');">Select</a></td></tr>';
306: }
307: $r->print(<<ENDCOL);
308: <html>
309: <script>
310:
311: function pclose() {
312: parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
313: "height=350,width=350,scrollbars=no,menubar=no");
314: parmwin.close();
315: }
316:
317: function pjump(type,dis,value,marker,ret,call) {
318: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
319: +"&value="+escape(value)+"&marker="+escape(marker)
320: +"&return="+escape(ret)
321: +"&call="+escape(call)+"&name="+escape(dis),"LONCAPAparms",
322: "height=350,width=350,scrollbars=no,menubar=no");
323:
324: }
325:
326: function psub() {
327: pclose();
328: if (document.parmform.pres_marker.value!='') {
329: if (document.parmform.pres_type.value!='') {
330: eval('document.server.'+
331: document.parmform.pres_marker.value+
332: '.value=document.parmform.pres_value.value;');
333: }
334: } else {
335: document.parmform.pres_value.value='';
336: document.parmform.pres_marker.value='';
337: }
338: }
339:
340:
341: </script>
342: $bodytag
343: <form name="parmform">
344: <input type="hidden" name="pres_marker" />
345: <input type="hidden" name="pres_type" />
346: <input type="hidden" name="pres_value" />
347: </form>
348: <form name="server" action="/adm/preferences" method="post">
349: <input type="hidden" name="action" value="verify_and_change_colors" />
350: <table border="2">
351: $chtable
352: </table>
353: <input type="submit" value="Change Custom Colors" />
354: <input type="submit" name="resetall" value="Reset All Colors to Default" />
355: </form>
356: </body>
357: </html>
358: ENDCOL
359: }
360:
361: sub verify_and_change_colors {
362: my $r = shift;
363: # figure out colors
364: my $function='student';
365: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
366: $function='coordinator';
367: }
368: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
369: $function='admin';
370: }
371: if (($ENV{'request.role'}=~/^(au|ca)/) ||
372: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
373: $function='author';
374: }
375: my $domain=&Apache::loncommon::determinedomain();
376: my %colortypes=('pgbg' => 'Page Background',
377: 'tabbg' => 'Header Background',
378: 'sidebg'=> 'Header Border',
379: 'font' => 'Font',
380: 'link' => 'Un-Visited Link',
381: 'vlink' => 'Visited Link',
382: 'alink' => 'Active Link');
383:
384: my $message='';
385: foreach my $item (keys %colortypes) {
386: my $color=$ENV{'form.'.$item};
387: my $entry='color.'.$function.'.'.$item;
388: if (($color=~/^\#[0-9A-Fa-f]{6}$/) && (!$ENV{'form.resetall'})) {
389: &Apache::lonnet::put('environment',{$entry => $color});
390: &Apache::lonnet::appenv('environment.'.$entry => $color);
391: $message.='Set '.$colortypes{$item}.' to '.$color.'<br />';
392: } else {
393: &Apache::lonnet::del('environment',[$entry]);
394: &Apache::lonnet::delenv('environment\.'.$entry);
395: $message.='Reset '.$colortypes{$item}.'<br />';
396: }
397: }
398: my $bodytag=&Apache::loncommon::bodytag(
399: 'Change Color Scheme for Current Role Type');
400: $r->print(<<ENDVCCOL);
401: <html>
402: $bodytag
403: </p>
404: $message
405: <form name="client" action="/adm/preferences" method="post">
406: <input type="hidden" name="action" value="changecolors" />
407: <input type="submit" value="Revise color scheme again" />
408: </form>
409: </body></html>
410: ENDVCCOL
411: }
412:
413: ######################################################
414: # password handler subroutines #
415: ######################################################
416: sub passwordchanger {
417: # This function is a bit of a mess....
418: # Passwords are encrypted using londes.js (DES encryption)
419: my $r = shift;
420: my $errormessage = shift;
421: $errormessage = ($errormessage || '');
422: my $user = $ENV{'user.name'};
423: my $domain = $ENV{'user.domain'};
424: my $homeserver = $ENV{'user.home'};
425: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
426: # Check for authentication types that allow changing of the password.
427: return if ($currentauth !~ /^(unix|internal):/);
428: #
429: # Generate keys
430: my ($lkey_cpass ,$ukey_cpass ) = &des_keys();
431: my ($lkey_npass1,$ukey_npass1) = &des_keys();
432: my ($lkey_npass2,$ukey_npass2) = &des_keys();
433: # Store the keys in the log files
434: my $lonhost = $r->dir_config('lonHostID');
435: my $logtoken=Apache::lonnet::reply('tmpput:'
436: .$ukey_cpass . $lkey_cpass .'&'
437: .$ukey_npass1 . $lkey_npass1.'&'
438: .$ukey_npass2 . $lkey_npass2,
439: $lonhost);
440: # Hexify the keys for output as javascript variables
441: $ukey_cpass = hex($ukey_cpass);
442: $lkey_cpass = hex($lkey_cpass);
443: $ukey_npass1= hex($ukey_npass1);
444: $lkey_npass1= hex($lkey_npass1);
445: $ukey_npass2= hex($ukey_npass2);
446: $lkey_npass2= hex($lkey_npass2);
447: # Output javascript to deal with passwords
448: # Output DES javascript
449: $r->print("<html><head>");
450: {
451: my $include = $r->dir_config('lonIncludes');
452: my $jsh=Apache::File->new($include."/londes.js");
453: $r->print(<$jsh>);
454: }
455: my $bodytag=&Apache::loncommon::bodytag('Change Password','',
456: 'onLoad="init();"');
457: $r->print(<<ENDFORM);
458: </head>
459: $bodytag
460:
461: <script language="JavaScript">
462:
463: function send() {
464: uextkey=this.document.client.elements.ukey_cpass.value;
465: lextkey=this.document.client.elements.lkey_cpass.value;
466: initkeys();
467:
468: this.document.server.elements.currentpass.value
469: =crypted(this.document.client.elements.currentpass.value);
470:
471: uextkey=this.document.client.elements.ukey_npass1.value;
472: lextkey=this.document.client.elements.lkey_npass1.value;
473: initkeys();
474: this.document.server.elements.newpass_1.value
475: =crypted(this.document.client.elements.newpass_1.value);
476:
477: uextkey=this.document.client.elements.ukey_npass2.value;
478: lextkey=this.document.client.elements.lkey_npass2.value;
479: initkeys();
480: this.document.server.elements.newpass_2.value
481: =crypted(this.document.client.elements.newpass_2.value);
482:
483: this.document.server.submit();
484: }
485:
486: </script>
487: $errormessage
488:
489: <p>
490: <!-- We seperate the forms into 'server' and 'client' in order to
491: ensure that unencrypted passwords will not be sent out by a
492: crappy browser -->
493:
494: <form name="server" action="/adm/preferences" method="post">
495: <input type="hidden" name="logtoken" value="$logtoken" />
496: <input type="hidden" name="action" value="verify_and_change_pass" />
497: <input type="hidden" name="currentpass" value="" />
498: <input type="hidden" name="newpass_1" value="" />
499: <input type="hidden" name="newpass_2" value="" />
500: </form>
501:
502: <form name="client" >
503: <table>
504: <tr><td align="right"> Current password: </td>
505: <td><input type="password" name="currentpass" size="10"/> </td></tr>
506: <tr><td align="right"> New password: </td>
507: <td><input type="password" name="newpass_1" size="10" /> </td></tr>
508: <tr><td align="right"> Confirm password: </td>
509: <td><input type="password" name="newpass_2" size="10" /> </td></tr>
510: <tr><td colspan="2" align="center">
511: <input type="button" value="Change Password" onClick="send();">
512: </table>
513: <input type="hidden" name="ukey_cpass" value="$ukey_cpass" />
514: <input type="hidden" name="lkey_cpass" value="$lkey_cpass" />
515: <input type="hidden" name="ukey_npass1" value="$ukey_npass1" />
516: <input type="hidden" name="lkey_npass1" value="$lkey_npass1" />
517: <input type="hidden" name="ukey_npass2" value="$ukey_npass2" />
518: <input type="hidden" name="lkey_npass2" value="$lkey_npass2" />
519: </form>
520: </p>
521: ENDFORM
522: #
523: return;
524: }
525:
526: sub verify_and_change_password {
527: my $r = shift;
528: my $user = $ENV{'user.name'};
529: my $domain = $ENV{'user.domain'};
530: my $homeserver = $ENV{'user.home'};
531: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
532: # Check for authentication types that allow changing of the password.
533: return if ($currentauth !~ /^(unix|internal):/);
534: #
535: $r->print(<<ENDHEADER);
536: <html>
537: <head>
538: <title>LON-CAPA Preferences: Change password for $user</title>
539: </head>
540: ENDHEADER
541: #
542: my $currentpass = $ENV{'form.currentpass'};
543: my $newpass1 = $ENV{'form.newpass_1'};
544: my $newpass2 = $ENV{'form.newpass_2'};
545: my $logtoken = $ENV{'form.logtoken'};
546: # Check for empty data
547: unless (defined($currentpass) &&
548: defined($newpass1) &&
549: defined($newpass2) ){
550: &passwordchanger($r,"<p>\n<font color='#ff0000'>ERROR</font>".
551: "Password data was blank.\n</p>");
552: return;
553: }
554: # Get the keys
555: my $lonhost = $r->dir_config('lonHostID');
556: my $tmpinfo = Apache::lonnet::reply('tmpget:'.$logtoken,$lonhost);
557: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
558: # I do not a have a better idea about how to handle this
559: $r->print(<<ENDERROR);
560: <p>
561: <font color="#ff0000">ERROR:</font> Unable to retrieve stored token for
562: password decryption. Please log out and try again.
563: </p>
564: ENDERROR
565: # Probably should log an error here
566: return;
567: }
568: my ($ckey,$n1key,$n2key)=split(/&/,$tmpinfo);
569: #
570: $currentpass = &des_decrypt($ckey ,$currentpass);
571: $newpass1 = &des_decrypt($n1key,$newpass1);
572: $newpass2 = &des_decrypt($n2key,$newpass2);
573: #
574: if ($newpass1 ne $newpass2) {
575: &passwordchanger($r,
576: '<font color="#ff0000">ERROR:</font>'.
577: 'The new passwords you entered do not match. '.
578: 'Please try again.');
579: return;
580: }
581: if (length($newpass1) < 7) {
582: &passwordchanger($r,
583: '<font color="#ff0000">ERROR:</font>'.
584: 'Passwords must be a minimum of 7 characters long. '.
585: 'Please try again.');
586: return;
587: }
588: #
589: # Check for bad characters
590: my $badpassword = 0;
591: foreach (split(//,$newpass1)) {
592: $badpassword = 1 if ((ord($_)<32)||(ord($_)>126));
593: }
594: if ($badpassword) {
595: # I can't figure out how to enter bad characters on my browser.
596: &passwordchanger($r,<<ENDERROR);
597: <font color="#ff0000">ERROR:</font>
598: The password you entered contained illegal characters.<br />
599: Valid characters are: space and <br />
600: <pre>
601: !"\#$%&\'()*+,-./0123456789:;<=>?\@
602: ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_\`abcdefghijklmnopqrstuvwxyz{|}~
603: </pre>
604: ENDERROR
605: }
606: #
607: # Change the password (finally)
608: my $result = &Apache::lonnet::changepass
609: ($user,$domain,$currentpass,$newpass1,$homeserver);
610: # Inform the user the password has (not?) been changed
611: if ($result =~ /^ok$/) {
612: $r->print(<<"ENDTEXT");
613: <h2>The password for $user was successfully changed</h2>
614: ENDTEXT
615: } else {
616: # error error: run in circles, scream and shout
617: $r->print(<<ENDERROR);
618: <h2><font color="#ff0000">The password for $user was not changed</font></h2>
619: Please make sure your old password was entered correctly.
620: ENDERROR
621: }
622: return;
623: }
624:
625: ######################################################
626: # other handler subroutines #
627: ######################################################
628:
629: ################################################################
630: # Main handler #
631: ################################################################
632: sub handler {
633: my $r = shift;
634: my $user = $ENV{'user.name'};
635: my $domain = $ENV{'user.domain'};
636: $r->content_type('text/html');
637: # Some pages contain DES keys and should not be cached.
638: &Apache::loncommon::no_cache($r);
639: $r->send_http_header;
640: return OK if $r->header_only;
641: #
642: if ($ENV{'form.action'} eq 'changepass') {
643: &passwordchanger($r);
644: } elsif ($ENV{'form.action'} eq 'verify_and_change_pass') {
645: &verify_and_change_password($r);
646: } elsif ($ENV{'form.action'} eq 'changescreenname') {
647: &screennamechanger($r);
648: } elsif ($ENV{'form.action'} eq 'verify_and_change_screenname') {
649: &verify_and_change_screenname($r);
650: } elsif ($ENV{'form.action'} eq 'changemsgforward') {
651: &msgforwardchanger($r);
652: } elsif ($ENV{'form.action'} eq 'verify_and_change_msgforward') {
653: &verify_and_change_msgforward($r);
654: } elsif ($ENV{'form.action'} eq 'changecolors') {
655: &colorschanger($r);
656: } elsif ($ENV{'form.action'} eq 'verify_and_change_colors') {
657: &verify_and_change_colors($r);
658: } elsif ($ENV{'form.action'} eq 'debugtoggle') {
659: if ($ENV{'user.name'} eq 'albertel' ) {
660: if ($ENV{'user.debug'}) {
661: &Apache::lonnet::delenv('user\.debug');
662: } else {
663: &Apache::lonnet::appenv('user.debug' => 1);
664: }
665: }
666: } else {
667: $r->print(<<ENDHEADER);
668: <html>
669: <head>
670: <title>LON-CAPA Preferences</title>
671: </head>
672: ENDHEADER
673: $r->print(&Apache::loncommon::bodytag('Change Your Preferences'));
674: # Determine current authentication method
675: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
676: if ($currentauth =~ /^(unix|internal):/) {
677: $r->print(<<ENDPASSWORDFORM);
678: <form name="client" action="/adm/preferences" method="post">
679: <input type="hidden" name="action" value="changepass" />
680: <input type="submit" value="Change password" />
681: </form>
682: ENDPASSWORDFORM
683: }
684: # Change screen name
685: $r->print(<<ENDSCREENNAMEFORM);
686: <form name="client" action="/adm/preferences" method="post">
687: <input type="hidden" name="action" value="changescreenname" />
688: <input type="submit"
689: value="Change nickname and anonymous discussion screen name" />
690: </form>
691: ENDSCREENNAMEFORM
692: $r->print(<<ENDMSGFORWARDFORM);
693: <form name="client" action="/adm/preferences" method="post">
694: <input type="hidden" name="action" value="changemsgforward" />
695: <input type="submit" value="Change message forwarding and notification addresses" />
696: </form>
697: ENDMSGFORWARDFORM
698: # The "about me" page
699: my $aboutmeaction=
700: '/adm/'.$ENV{'user.domain'}.'/'.$ENV{'user.name'}.'/aboutme';
701: $r->print(<<ENDABOUTME);
702: <form name="client" action="$aboutmeaction" method="post">
703: <input type="hidden" name="action" value="changescreenname" />
704: <input type="submit" value="Edit the 'About Me' personal information screen" />
705: </form>
706: ENDABOUTME
707: $r->print(<<ENDCOLORFORM);
708: <form name="client" action="/adm/preferences" method="post">
709: <input type="hidden" name="action" value="changecolors" />
710: <input type="submit" value="Change color scheme" />
711: </form>
712: ENDCOLORFORM
713:
714: if ($ENV{'user.name'} eq 'albertel') {
715: $r->print(<<ENDDEBUG);
716: <form name="client" action="/adm/preferences" method="post">
717: <input type="hidden" name="action" value="debugtoggle" />
718: <input type="submit" value="Toggle Debug" />
719: Current Debug status is -$ENV{'user.debug'}-.
720: </form>
721: ENDDEBUG
722: }
723: # Other preference setting code should be added here
724: }
725: $r->print(<<ENDFOOTER);
726: </body>
727: </html>
728: ENDFOOTER
729: return OK;
730: }
731:
732: 1;
733: __END__
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