1: # The LearningOnline Network
2: # Preferences
3: #
4: # $Id: lonpreferences.pm,v 1.32 2003/11/07 23:22:21 www 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: use Apache::lonhtmlcommon();
54: use Apache::lonlocal;
55:
56: #
57: # Write lonnet::passwd to do the call below.
58: # Use:
59: # my $answer=reply("encrypt:passwd:$udom:$uname:$upass",$tryserver);
60: #
61: ##################################################
62: # password associated functions #
63: ##################################################
64: sub des_keys {
65: # Make a new key for DES encryption.
66: # Each key has two parts which are returned seperately.
67: # Please note: Each key must be passed through the &hex function
68: # before it is output to the web browser. The hex versions cannot
69: # be used to decrypt.
70: my @hexstr=('0','1','2','3','4','5','6','7',
71: '8','9','a','b','c','d','e','f');
72: my $lkey='';
73: for (0..7) {
74: $lkey.=$hexstr[rand(15)];
75: }
76: my $ukey='';
77: for (0..7) {
78: $ukey.=$hexstr[rand(15)];
79: }
80: return ($lkey,$ukey);
81: }
82:
83: sub des_decrypt {
84: my ($key,$cyphertext) = @_;
85: my $keybin=pack("H16",$key);
86: my $cypher;
87: if ($Crypt::DES::VERSION>=2.03) {
88: $cypher=new Crypt::DES $keybin;
89: } else {
90: $cypher=new DES $keybin;
91: }
92: my $plaintext=
93: $cypher->decrypt(unpack("a8",pack("H16",substr($cyphertext,0,16))));
94: $plaintext.=
95: $cypher->decrypt(unpack("a8",pack("H16",substr($cyphertext,16,16))));
96: $plaintext=substr($plaintext,1,ord(substr($plaintext,0,1)) );
97: return $plaintext;
98: }
99:
100: ################################################################
101: # Handler subroutines #
102: ################################################################
103:
104: ################################################################
105: # Language Change Subroutines #
106: ################################################################
107: sub languagechanger {
108: my $r = shift;
109: my $user = $ENV{'user.name'};
110: my $domain = $ENV{'user.domain'};
111: my %userenv = &Apache::lonnet::get
112: ('environment',['languages']);
113: my $language=$userenv{'languages'};
114:
115: my $bodytag=&Apache::loncommon::bodytag(
116: 'Change Your Language Preferences');
117: $r->print(<<ENDLSCREEN);
118: <html>
119: $bodytag
120:
121: <form name="server" action="/adm/preferences" method="post">
122: <input type="hidden" name="action" value="verify_and_change_languages" />
123: <br />Preferred language:
124: <input type="text" size="5" value="$language" name="language" />
125: ENDLSCREEN
126: $r->print('<br /><input type="submit" value="'.&mt('Change').'" /></form></body></html>');
127: }
128:
129:
130: sub verify_and_change_languages {
131: my $r = shift;
132: my $user = $ENV{'user.name'};
133: my $domain = $ENV{'user.domain'};
134: # Screenname
135: my $newlanguage = $ENV{'form.language'};
136: $newlanguage=~s/[^\-\w]//g;
137: my $message='';
138: if ($newlanguage) {
139: &Apache::lonnet::put('environment',{'languages' => $newlanguage});
140: &Apache::lonnet::appenv('environment.languages' => $newlanguage);
141: $message='Set new preferred languages to '.$newlanguage;
142: } else {
143: &Apache::lonnet::del('environment',['languages']);
144: &Apache::lonnet::delenv('environment\.languages');
145: $message='Reset preferred language';
146: }
147: my $bodytag=&Apache::loncommon::bodytag(
148: 'Change Your Language Preferences');
149: $r->print(<<ENDVCSCREEN);
150: <html>
151: $bodytag
152: </p>
153: $message
154: </body></html>
155: ENDVCSCREEN
156: }
157:
158:
159: ################################################################
160: # Anonymous Discussion Name Change Subroutines #
161: ################################################################
162: sub screennamechanger {
163: my $r = shift;
164: my $user = $ENV{'user.name'};
165: my $domain = $ENV{'user.domain'};
166: my %userenv = &Apache::lonnet::get
167: ('environment',['screenname','nickname']);
168: my $screenname=$userenv{'screenname'};
169: my $nickname=$userenv{'nickname'};
170: my $bodytag=&Apache::loncommon::bodytag(
171: 'Change Your Nickname and Anonymous Screen Name');
172: $r->print(<<ENDSCREEN);
173: <html>
174: $bodytag
175:
176: <form name="server" action="/adm/preferences" method="post">
177: <input type="hidden" name="action" value="verify_and_change_screenname" />
178: <br />New screenname (shown if you post anonymously):
179: <input type="text" size="20" value="$screenname" name="screenname" />
180: <br />New nickname (shown if you post non-anonymously):
181: <input type="text" size="20" value="$nickname" name="nickname" />
182: <input type="submit" value="Change" />
183: </form>
184: </body>
185: </html>
186: ENDSCREEN
187: }
188:
189: sub verify_and_change_screenname {
190: my $r = shift;
191: my $user = $ENV{'user.name'};
192: my $domain = $ENV{'user.domain'};
193: # Screenname
194: my $newscreen = $ENV{'form.screenname'};
195: $newscreen=~s/[^ \w]//g;
196: my $message='';
197: if ($newscreen) {
198: &Apache::lonnet::put('environment',{'screenname' => $newscreen});
199: &Apache::lonnet::appenv('environment.screenname' => $newscreen);
200: $message='Set new screenname to '.$newscreen;
201: } else {
202: &Apache::lonnet::del('environment',['screenname']);
203: &Apache::lonnet::delenv('environment\.screenname');
204: $message='Reset screenname';
205: }
206: # Nickname
207: $message.='<br />';
208: $newscreen = $ENV{'form.nickname'};
209: $newscreen=~s/[^ \w]//g;
210: if ($newscreen) {
211: &Apache::lonnet::put('environment',{'nickname' => $newscreen});
212: &Apache::lonnet::appenv('environment.nickname' => $newscreen);
213: $message.='Set new nickname to '.$newscreen;
214: } else {
215: &Apache::lonnet::del('environment',['nickname']);
216: &Apache::lonnet::delenv('environment\.nickname');
217: $message.='Reset nickname';
218: }
219:
220: my $bodytag=&Apache::loncommon::bodytag(
221: 'Change Your Nickname and Anonymous Screen Name');
222: $r->print(<<ENDVCSCREEN);
223: <html>
224: $bodytag
225: </p>
226: $message
227: </body></html>
228: ENDVCSCREEN
229: }
230:
231: ################################################################
232: # Message Forward #
233: ################################################################
234:
235: sub msgforwardchanger {
236: my $r = shift;
237: my $user = $ENV{'user.name'};
238: my $domain = $ENV{'user.domain'};
239: my %userenv = &Apache::lonnet::get('environment',['msgforward','notification','critnotification']);
240: my $msgforward=$userenv{'msgforward'};
241: my $notification=$userenv{'notification'};
242: my $critnotification=$userenv{'critnotification'};
243: my $bodytag=&Apache::loncommon::bodytag(
244: 'Change Your Message Forwarding and Notification');
245: my $forwardingHelp = Apache::loncommon::help_open_topic("Prefs_Forwarding",
246: "What are forwarding ".
247: "and notification ".
248: "addresses");
249: my $criticalMessageHelp = Apache::loncommon::help_open_topic("Course_Critical_Message",
250: "What are critical messages");
251:
252: $r->print(<<ENDMSG);
253: <html>
254: $bodytag
255: $forwardingHelp <br />
256: <form name="server" action="/adm/preferences" method="post">
257: <input type="hidden" name="action" value="verify_and_change_msgforward" />
258: New Forwarding Address(es) (<tt>user:domain,user:domain,...</tt>):
259: <input type="text" size="40" value="$msgforward" name="msgforward" /><hr />
260: New Message Notification Email Address(es) (<tt>joe\@doe.com,jane\@doe.edu,...</tt>):
261: <input type="text" size="40" value="$notification" name="notification" /><hr />
262: New Critical Message Notification Email Address(es) (<tt>joe\@doe.com,jane\@doe.edu,...</tt>):
263: <input type="text" size="40" value="$critnotification" name="critnotification" />$criticalMessageHelp<hr />
264: <input type="submit" value="Change" />
265: </form>
266: </body>
267: </html>
268: ENDMSG
269: }
270:
271: sub verify_and_change_msgforward {
272: my $r = shift;
273: my $user = $ENV{'user.name'};
274: my $domain = $ENV{'user.domain'};
275: my $newscreen = '';
276: my $message='';
277: foreach (split(/\,/,$ENV{'form.msgforward'})) {
278: my ($msuser,$msdomain)=split(/[\@\:]/,$_);
279: $msuser=~s/\W//g;
280: $msdomain=~s/\W//g;
281: if (($msuser) && ($msdomain)) {
282: if (&Apache::lonnet::homeserver($msuser,$msdomain) ne 'no_host') {
283: $newscreen.=$msuser.':'.$msdomain.',';
284: } else {
285: $message.='No such user: '.$msuser.':'.$msdomain.'<br>';
286: }
287: }
288: }
289: $newscreen=~s/\,$//;
290: if ($newscreen) {
291: &Apache::lonnet::put('environment',{'msgforward' => $newscreen});
292: &Apache::lonnet::appenv('environment.msgforward' => $newscreen);
293: $message.='Set new message forwarding to '.$newscreen.'<br />';
294: } else {
295: &Apache::lonnet::del('environment',['msgforward']);
296: &Apache::lonnet::delenv('environment\.msgforward');
297: $message.='Reset message forwarding<br />';
298: }
299: my $notification=$ENV{'form.notification'};
300: $notification=~s/\s//gs;
301: if ($notification) {
302: &Apache::lonnet::put('environment',{'notification' => $notification});
303: &Apache::lonnet::appenv('environment.notification' => $notification);
304: $message.='Set message notification address to '.$notification.'<br />';
305: } else {
306: &Apache::lonnet::del('environment',['notification']);
307: &Apache::lonnet::delenv('environment\.notification');
308: $message.='Reset message notification<br />';
309: }
310: my $critnotification=$ENV{'form.critnotification'};
311: $critnotification=~s/\s//gs;
312: if ($critnotification) {
313: &Apache::lonnet::put('environment',{'critnotification' => $critnotification});
314: &Apache::lonnet::appenv('environment.critnotification' => $critnotification);
315: $message.='Set critical message notification address to '.$critnotification;
316: } else {
317: &Apache::lonnet::del('environment',['critnotification']);
318: &Apache::lonnet::delenv('environment\.critnotification');
319: $message.='Reset critical message notification<br />';
320: }
321: my $bodytag=&Apache::loncommon::bodytag(
322: 'Change Your Message Forwarding and Notifications');
323: $r->print(<<ENDVCMSG);
324: <html>
325: $bodytag
326: </p>
327: $message
328: </body></html>
329: ENDVCMSG
330: }
331:
332: ################################################################
333: # Colors #
334: ################################################################
335:
336: sub colorschanger {
337: my $r = shift;
338: my $bodytag=&Apache::loncommon::bodytag(
339: 'Change Color Scheme for Current Role Type','',
340: 'onUnload="pclose();"');
341: # figure out colors
342: my $function='student';
343: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
344: $function='coordinator';
345: }
346: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
347: $function='admin';
348: }
349: if (($ENV{'request.role'}=~/^(au|ca)/) ||
350: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
351: $function='author';
352: }
353: my $domain=&Apache::loncommon::determinedomain();
354: my %colortypes=('pgbg' => 'Page Background',
355: 'tabbg' => 'Header Background',
356: 'sidebg'=> 'Header Border',
357: 'font' => 'Font',
358: 'link' => 'Un-Visited Link',
359: 'vlink' => 'Visited Link',
360: 'alink' => 'Active Link');
361: my $chtable='';
362: foreach my $item (sort(keys(%colortypes))) {
363: my $curcol=&Apache::loncommon::designparm($function.'.'.$item,$domain);
364: $chtable.='<tr><td>'.$colortypes{$item}.'</td><td bgcolor="'.$curcol.
365: '"> </td><td><input name="'.$item.
366: '" size="10" value="'.$curcol.
367: '" /></td><td><a href="javascript:pjump('."'color_custom','".$colortypes{$item}.
368: "','".$curcol."','"
369: .$item."','parmform.pres','psub'".');">Select</a></td></tr>';
370: }
371: my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
372: $r->print(<<ENDCOL);
373: <html>
374: <script>
375:
376: function pclose() {
377: parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
378: "height=350,width=350,scrollbars=no,menubar=no");
379: parmwin.close();
380: }
381:
382: $pjump_def
383:
384: function psub() {
385: pclose();
386: if (document.parmform.pres_marker.value!='') {
387: if (document.parmform.pres_type.value!='') {
388: eval('document.server.'+
389: document.parmform.pres_marker.value+
390: '.value=document.parmform.pres_value.value;');
391: }
392: } else {
393: document.parmform.pres_value.value='';
394: document.parmform.pres_marker.value='';
395: }
396: }
397:
398:
399: </script>
400: $bodytag
401: <form name="parmform">
402: <input type="hidden" name="pres_marker" />
403: <input type="hidden" name="pres_type" />
404: <input type="hidden" name="pres_value" />
405: </form>
406: <form name="server" action="/adm/preferences" method="post">
407: <input type="hidden" name="action" value="verify_and_change_colors" />
408: <table border="2">
409: $chtable
410: </table>
411: <input type="submit" value="Change Custom Colors" />
412: <input type="submit" name="resetall" value="Reset All Colors to Default" />
413: </form>
414: </body>
415: </html>
416: ENDCOL
417: }
418:
419: sub verify_and_change_colors {
420: my $r = shift;
421: # figure out colors
422: my $function='student';
423: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
424: $function='coordinator';
425: }
426: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
427: $function='admin';
428: }
429: if (($ENV{'request.role'}=~/^(au|ca)/) ||
430: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
431: $function='author';
432: }
433: my $domain=&Apache::loncommon::determinedomain();
434: my %colortypes=('pgbg' => 'Page Background',
435: 'tabbg' => 'Header Background',
436: 'sidebg'=> 'Header Border',
437: 'font' => 'Font',
438: 'link' => 'Un-Visited Link',
439: 'vlink' => 'Visited Link',
440: 'alink' => 'Active Link');
441:
442: my $message='';
443: foreach my $item (keys %colortypes) {
444: my $color=$ENV{'form.'.$item};
445: my $entry='color.'.$function.'.'.$item;
446: if (($color=~/^\#[0-9A-Fa-f]{6}$/) && (!$ENV{'form.resetall'})) {
447: &Apache::lonnet::put('environment',{$entry => $color});
448: &Apache::lonnet::appenv('environment.'.$entry => $color);
449: $message.='Set '.$colortypes{$item}.' to '.$color.'<br />';
450: } else {
451: &Apache::lonnet::del('environment',[$entry]);
452: &Apache::lonnet::delenv('environment\.'.$entry);
453: $message.='Reset '.$colortypes{$item}.'<br />';
454: }
455: }
456: my $bodytag=&Apache::loncommon::bodytag(
457: 'Change Color Scheme for Current Role Type');
458: $r->print(<<ENDVCCOL);
459: <html>
460: $bodytag
461: </p>
462: $message
463: <form name="client" action="/adm/preferences" method="post">
464: <input type="hidden" name="action" value="changecolors" />
465: <input type="submit" value="Revise color scheme again" />
466: </form>
467: </body></html>
468: ENDVCCOL
469: }
470:
471: ######################################################
472: # password handler subroutines #
473: ######################################################
474: sub passwordchanger {
475: # This function is a bit of a mess....
476: # Passwords are encrypted using londes.js (DES encryption)
477: my $r = shift;
478: my $errormessage = shift;
479: $errormessage = ($errormessage || '');
480: my $user = $ENV{'user.name'};
481: my $domain = $ENV{'user.domain'};
482: my $homeserver = $ENV{'user.home'};
483: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
484: # Check for authentication types that allow changing of the password.
485: return if ($currentauth !~ /^(unix|internal):/);
486: #
487: # Generate keys
488: my ($lkey_cpass ,$ukey_cpass ) = &des_keys();
489: my ($lkey_npass1,$ukey_npass1) = &des_keys();
490: my ($lkey_npass2,$ukey_npass2) = &des_keys();
491: # Store the keys in the log files
492: my $lonhost = $r->dir_config('lonHostID');
493: my $logtoken=Apache::lonnet::reply('tmpput:'
494: .$ukey_cpass . $lkey_cpass .'&'
495: .$ukey_npass1 . $lkey_npass1.'&'
496: .$ukey_npass2 . $lkey_npass2,
497: $lonhost);
498: # Hexify the keys for output as javascript variables
499: $ukey_cpass = hex($ukey_cpass);
500: $lkey_cpass = hex($lkey_cpass);
501: $ukey_npass1= hex($ukey_npass1);
502: $lkey_npass1= hex($lkey_npass1);
503: $ukey_npass2= hex($ukey_npass2);
504: $lkey_npass2= hex($lkey_npass2);
505: # Output javascript to deal with passwords
506: # Output DES javascript
507: $r->print("<html><head>");
508: {
509: my $include = $r->dir_config('lonIncludes');
510: my $jsh=Apache::File->new($include."/londes.js");
511: $r->print(<$jsh>);
512: }
513: my $bodytag=&Apache::loncommon::bodytag('Change Password','',
514: 'onLoad="init();"');
515: $r->print(<<ENDFORM);
516: </head>
517: $bodytag
518:
519: <script language="JavaScript">
520:
521: function send() {
522: uextkey=this.document.client.elements.ukey_cpass.value;
523: lextkey=this.document.client.elements.lkey_cpass.value;
524: initkeys();
525:
526: this.document.server.elements.currentpass.value
527: =crypted(this.document.client.elements.currentpass.value);
528:
529: uextkey=this.document.client.elements.ukey_npass1.value;
530: lextkey=this.document.client.elements.lkey_npass1.value;
531: initkeys();
532: this.document.server.elements.newpass_1.value
533: =crypted(this.document.client.elements.newpass_1.value);
534:
535: uextkey=this.document.client.elements.ukey_npass2.value;
536: lextkey=this.document.client.elements.lkey_npass2.value;
537: initkeys();
538: this.document.server.elements.newpass_2.value
539: =crypted(this.document.client.elements.newpass_2.value);
540:
541: this.document.server.submit();
542: }
543:
544: </script>
545: $errormessage
546:
547: <p>
548: <!-- We seperate the forms into 'server' and 'client' in order to
549: ensure that unencrypted passwords will not be sent out by a
550: crappy browser -->
551:
552: <form name="server" action="/adm/preferences" method="post">
553: <input type="hidden" name="logtoken" value="$logtoken" />
554: <input type="hidden" name="action" value="verify_and_change_pass" />
555: <input type="hidden" name="currentpass" value="" />
556: <input type="hidden" name="newpass_1" value="" />
557: <input type="hidden" name="newpass_2" value="" />
558: </form>
559:
560: <form name="client" >
561: <table>
562: <tr><td align="right"> Current password: </td>
563: <td><input type="password" name="currentpass" size="10"/> </td></tr>
564: <tr><td align="right"> New password: </td>
565: <td><input type="password" name="newpass_1" size="10" /> </td></tr>
566: <tr><td align="right"> Confirm password: </td>
567: <td><input type="password" name="newpass_2" size="10" /> </td></tr>
568: <tr><td colspan="2" align="center">
569: <input type="button" value="Change Password" onClick="send();">
570: </table>
571: <input type="hidden" name="ukey_cpass" value="$ukey_cpass" />
572: <input type="hidden" name="lkey_cpass" value="$lkey_cpass" />
573: <input type="hidden" name="ukey_npass1" value="$ukey_npass1" />
574: <input type="hidden" name="lkey_npass1" value="$lkey_npass1" />
575: <input type="hidden" name="ukey_npass2" value="$ukey_npass2" />
576: <input type="hidden" name="lkey_npass2" value="$lkey_npass2" />
577: </form>
578: </p>
579: ENDFORM
580: #
581: return;
582: }
583:
584: sub verify_and_change_password {
585: my $r = shift;
586: my $user = $ENV{'user.name'};
587: my $domain = $ENV{'user.domain'};
588: my $homeserver = $ENV{'user.home'};
589: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
590: # Check for authentication types that allow changing of the password.
591: return if ($currentauth !~ /^(unix|internal):/);
592: #
593: $r->print(<<ENDHEADER);
594: <html>
595: <head>
596: <title>LON-CAPA Preferences: Change password for $user</title>
597: </head>
598: ENDHEADER
599: #
600: my $currentpass = $ENV{'form.currentpass'};
601: my $newpass1 = $ENV{'form.newpass_1'};
602: my $newpass2 = $ENV{'form.newpass_2'};
603: my $logtoken = $ENV{'form.logtoken'};
604: # Check for empty data
605: unless (defined($currentpass) &&
606: defined($newpass1) &&
607: defined($newpass2) ){
608: &passwordchanger($r,"<p>\n<font color='#ff0000'>ERROR</font>".
609: "Password data was blank.\n</p>");
610: return;
611: }
612: # Get the keys
613: my $lonhost = $r->dir_config('lonHostID');
614: my $tmpinfo = Apache::lonnet::reply('tmpget:'.$logtoken,$lonhost);
615: if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
616: # I do not a have a better idea about how to handle this
617: $r->print(<<ENDERROR);
618: <p>
619: <font color="#ff0000">ERROR:</font> Unable to retrieve stored token for
620: password decryption. Please log out and try again.
621: </p>
622: ENDERROR
623: # Probably should log an error here
624: return;
625: }
626: my ($ckey,$n1key,$n2key)=split(/&/,$tmpinfo);
627: #
628: $currentpass = &des_decrypt($ckey ,$currentpass);
629: $newpass1 = &des_decrypt($n1key,$newpass1);
630: $newpass2 = &des_decrypt($n2key,$newpass2);
631: #
632: if ($newpass1 ne $newpass2) {
633: &passwordchanger($r,
634: '<font color="#ff0000">ERROR:</font>'.
635: 'The new passwords you entered do not match. '.
636: 'Please try again.');
637: return;
638: }
639: if (length($newpass1) < 7) {
640: &passwordchanger($r,
641: '<font color="#ff0000">ERROR:</font>'.
642: 'Passwords must be a minimum of 7 characters long. '.
643: 'Please try again.');
644: return;
645: }
646: #
647: # Check for bad characters
648: my $badpassword = 0;
649: foreach (split(//,$newpass1)) {
650: $badpassword = 1 if ((ord($_)<32)||(ord($_)>126));
651: }
652: if ($badpassword) {
653: # I can't figure out how to enter bad characters on my browser.
654: &passwordchanger($r,<<ENDERROR);
655: <font color="#ff0000">ERROR:</font>
656: The password you entered contained illegal characters.<br />
657: Valid characters are: space and <br />
658: <pre>
659: !"\#$%&\'()*+,-./0123456789:;<=>?\@
660: ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_\`abcdefghijklmnopqrstuvwxyz{|}~
661: </pre>
662: ENDERROR
663: }
664: #
665: # Change the password (finally)
666: my $result = &Apache::lonnet::changepass
667: ($user,$domain,$currentpass,$newpass1,$homeserver);
668: # Inform the user the password has (not?) been changed
669: if ($result =~ /^ok$/) {
670: $r->print(<<"ENDTEXT");
671: <h2>The password for $user was successfully changed</h2>
672: ENDTEXT
673: } else {
674: # error error: run in circles, scream and shout
675: $r->print(<<ENDERROR);
676: <h2><font color="#ff0000">The password for $user was not changed</font></h2>
677: Please make sure your old password was entered correctly.
678: ENDERROR
679: }
680: return;
681: }
682:
683: ######################################################
684: # other handler subroutines #
685: ######################################################
686:
687: ################################################################
688: # Main handler #
689: ################################################################
690: sub handler {
691: my $r = shift;
692: my $user = $ENV{'user.name'};
693: my $domain = $ENV{'user.domain'};
694: &Apache::loncommon::content_type($r,'text/html');
695: # Some pages contain DES keys and should not be cached.
696: &Apache::loncommon::no_cache($r);
697: $r->send_http_header;
698: return OK if $r->header_only;
699: #
700: if ($ENV{'form.action'} eq 'changepass') {
701: &passwordchanger($r);
702: } elsif ($ENV{'form.action'} eq 'verify_and_change_pass') {
703: &verify_and_change_password($r);
704: } elsif ($ENV{'form.action'} eq 'changescreenname') {
705: &screennamechanger($r);
706: } elsif ($ENV{'form.action'} eq 'verify_and_change_screenname') {
707: &verify_and_change_screenname($r);
708: } elsif ($ENV{'form.action'} eq 'changemsgforward') {
709: &msgforwardchanger($r);
710: } elsif ($ENV{'form.action'} eq 'verify_and_change_msgforward') {
711: &verify_and_change_msgforward($r);
712: } elsif ($ENV{'form.action'} eq 'changecolors') {
713: &colorschanger($r);
714: } elsif ($ENV{'form.action'} eq 'verify_and_change_colors') {
715: &verify_and_change_colors($r);
716: } elsif ($ENV{'form.action'} eq 'changelanguages') {
717: &languagechanger($r);
718: } elsif ($ENV{'form.action'} eq 'verify_and_change_languages') {
719: &verify_and_change_languages($r);
720: } elsif ($ENV{'form.action'} eq 'debugtoggle') {
721: if (($ENV{'user.name'} eq 'albertel' ) ||
722: ($ENV{'user.name'} eq 'kortemey' ) ||
723: ($ENV{'user.name'} eq 'korte')) {
724: if ($ENV{'user.debug'}) {
725: &Apache::lonnet::delenv('user\.debug');
726: } else {
727: &Apache::lonnet::appenv('user.debug' => 1);
728: }
729: }
730: } else {
731: $r->print(<<ENDHEADER);
732: <html>
733: <head>
734: <title>LON-CAPA Preferences</title>
735: </head>
736: ENDHEADER
737: $r->print(&Apache::loncommon::bodytag('Change Your Preferences'));
738: # Determine current authentication method
739: my $currentauth=&Apache::lonnet::queryauthenticate($user,$domain);
740: if ($currentauth =~ /^(unix|internal):/) {
741: $r->print(<<ENDPASSWORDFORM);
742: <form name="client" action="/adm/preferences" method="post">
743: <input type="hidden" name="action" value="changepass" />
744: <input type="submit" value="Change password" />
745: </form>
746: ENDPASSWORDFORM
747: }
748: # Change screen name
749: $r->print(<<ENDSCREENNAMEFORM);
750: <form name="client" action="/adm/preferences" method="post">
751: <input type="hidden" name="action" value="changescreenname" />
752: <input type="submit"
753: value="Change nickname and anonymous discussion screen name" />
754: </form>
755: ENDSCREENNAMEFORM
756: $r->print(<<ENDMSGFORWARDFORM);
757: <form name="client" action="/adm/preferences" method="post">
758: <input type="hidden" name="action" value="changemsgforward" />
759: <input type="submit" value="Change message forwarding and notification addresses" />
760: </form>
761: ENDMSGFORWARDFORM
762: # The "about me" page
763: my $aboutmeaction=
764: '/adm/'.$ENV{'user.domain'}.'/'.$ENV{'user.name'}.'/aboutme';
765: $r->print(<<ENDABOUTME);
766: <form name="client" action="$aboutmeaction" method="post">
767: <input type="hidden" name="action" value="changescreenname" />
768: <input type="submit" value="Edit the 'About Me' personal information screen" />
769: </form>
770: ENDABOUTME
771: $r->print(<<ENDCOLORFORM);
772: <form name="client" action="/adm/preferences" method="post">
773: <input type="hidden" name="action" value="changecolors" />
774: <input type="submit" value="Change color scheme" />
775: </form>
776: ENDCOLORFORM
777:
778: $r->print(<<ENDLANGUAGES);
779: <form name="client" action="/adm/preferences" method="post">
780: <input type="hidden" name="action" value="changelanguages" />
781: <input type="submit" value="Change language preferences" />
782: </form>
783: ENDLANGUAGES
784:
785: if (($ENV{'user.name'} eq 'albertel' ) ||
786: ($ENV{'user.name'} eq 'kortemey' ) ||
787: ($ENV{'user.name'} eq 'korte')) {
788: $r->print(<<ENDDEBUG);
789: <form name="client" action="/adm/preferences" method="post">
790: <input type="hidden" name="action" value="debugtoggle" />
791: <input type="submit" value="Toggle Debug" />
792: Current Debug status is -$ENV{'user.debug'}-.
793: </form>
794: ENDDEBUG
795: }
796: # Other preference setting code should be added here
797: }
798: $r->print(<<ENDFOOTER);
799: </body>
800: </html>
801: ENDFOOTER
802: return OK;
803: }
804:
805: 1;
806: __END__
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