1: # The LearningOnline Network
2: # Cookie Based Access Handler
3: #
4: # $Id: lonacc.pm,v 1.139 2012/08/21 17:51:58 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: =head1 NAME
31:
32: Apache::lonacc - Cookie Based Access Handler
33:
34: =head1 SYNOPSIS
35:
36: Invoked (for various locations) by /etc/httpd/conf/srm.conf:
37:
38: PerlAccessHandler Apache::lonacc
39:
40: =head1 INTRODUCTION
41:
42: This module enables cookie based authentication and is used
43: to control access for many different LON-CAPA URIs.
44:
45: Whenever the client sends the cookie back to the server,
46: this cookie is handled by either lonacc.pm or loncacc.pm
47: (see srm.conf for what is invoked when). If
48: the cookie is missing or invalid, the user is re-challenged
49: for login information.
50:
51: This is part of the LearningOnline Network with CAPA project
52: described at http://www.lon-capa.org.
53:
54: =head1 HANDLER SUBROUTINE
55:
56: This routine is called by Apache and mod_perl.
57:
58: =over 4
59:
60: =item *
61:
62: transfer profile into environment
63:
64: =item *
65:
66: load POST parameters
67:
68: =item *
69:
70: check access
71:
72: =item *
73:
74: if allowed, get symb, log, generate course statistics if applicable
75:
76: =item *
77:
78: otherwise return error
79:
80: =item *
81:
82: see if public resource
83:
84: =item *
85:
86: store attempted access
87:
88: =back
89:
90: =head1 NOTABLE SUBROUTINES
91:
92: =over
93:
94: =cut
95:
96:
97: package Apache::lonacc;
98:
99: use strict;
100: use Apache::Constants qw(:common :http :methods);
101: use Apache::File;
102: use Apache::lonnet;
103: use Apache::loncommon();
104: use Apache::lonlocal;
105: use Apache::restrictedaccess();
106: use Apache::blockedaccess();
107: use Fcntl qw(:flock);
108: use LONCAPA;
109:
110: sub cleanup {
111: my ($r)=@_;
112: if (! $r->is_initial_req()) { return DECLINED; }
113: &Apache::lonnet::save_cache();
114: &Apache::lontexconvert::jsMath_reset();
115: return OK;
116: }
117:
118: sub goodbye {
119: my ($r)=@_;
120: &Apache::lonnet::goodbye();
121: return DONE;
122: }
123:
124: ###############################################
125:
126: sub get_posted_cgi {
127: my ($r,$fields) = @_;
128:
129: my $buffer;
130: if ($r->header_in('Content-length')) {
131: $r->read($buffer,$r->header_in('Content-length'),0);
132: }
133: my $content_type = $r->header_in('Content-type');
134: if ($content_type !~ m{^multipart/form-data}) {
135: my @pairs=split(/&/,$buffer);
136: my $pair;
137: foreach $pair (@pairs) {
138: my ($name,$value) = split(/=/,$pair);
139: $value =~ tr/+/ /;
140: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
141: $name =~ tr/+/ /;
142: $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
143: if (ref($fields) eq 'ARRAY') {
144: next if (!grep(/^\Q$name\E$/,@{$fields}));
145: }
146: &Apache::loncommon::add_to_env("form.$name",$value);
147: }
148: } else {
149: my ($contentsep) = ($content_type =~ /boundary=\"?([^\";,]+)\"?/);
150: my @lines = split (/\n/,$buffer);
151: my $name='';
152: my $value='';
153: my $fname='';
154: my $fmime='';
155: my $i;
156: for ($i=0;$i<=$#lines;$i++) {
157: if ($lines[$i]=~/^--\Q$contentsep\E/) {
158: if ($name) {
159: chomp($value);
160: if (($r->uri eq '/adm/portfolio') &&
161: ($name eq 'uploaddoc')) {
162: if (length($value) == 1) {
163: $value=~s/[\r\n]$//;
164: }
165: }
166: if (ref($fields) eq 'ARRAY') {
167: next if (!grep(/^\Q$name\E$/,@{$fields}));
168: }
169: if ($fname) {
170: if ($env{'form.symb'} ne '') {
171: my $size = (length($value))/(1024.0 * 1024.0);
172: if (&upload_size_allowed($name,$size,$fname) eq 'ok') {
173: $env{"form.$name.filename"}=$fname;
174: $env{"form.$name.mimetype"}=$fmime;
175: &Apache::loncommon::add_to_env("form.$name",$value);
176: }
177: } else {
178: $env{"form.$name.filename"}=$fname;
179: $env{"form.$name.mimetype"}=$fmime;
180: &Apache::loncommon::add_to_env("form.$name",$value);
181: }
182: } else {
183: $value=~s/\s+$//s;
184: &Apache::loncommon::add_to_env("form.$name",$value);
185: }
186: }
187: if ($i<$#lines) {
188: $i++;
189: $lines[$i]=~
190: /Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i;
191: $name=$1;
192: $value='';
193: if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) {
194: $fname=$1;
195: if
196: ($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) {
197: $fmime=$1;
198: $i++;
199: } else {
200: $fmime='';
201: }
202: } else {
203: $fname='';
204: $fmime='';
205: }
206: $i++;
207: }
208: } else {
209: $value.=$lines[$i]."\n";
210: }
211: }
212: }
213: #
214: # Digested POSTed values
215: #
216: # Remember the way this was originally done (GET or POST)
217: #
218: $env{'request.method'}=$ENV{'REQUEST_METHOD'};
219: #
220: # There may also be stuff in the query string
221: # Tell subsequent handlers that this was GET, not POST, so they can access query string.
222: # Also, unset POSTed content length to cover all tracks.
223: #
224:
225: $r->method_number(M_GET);
226:
227: $r->method('GET');
228: $r->headers_in->unset('Content-length');
229: }
230:
231: =pod
232:
233: =item upload_size_allowed()
234:
235: Perform size checks for file uploads to essayresponse items in course context.
236:
237: Add form.HWFILESIZE.$part_$id to %env with file size (MB)
238: If file exceeds maximum allowed size, add form.HWFILETOOBIG.$part_$id to %env.
239:
240: =cut
241:
242: sub upload_size_allowed {
243: my ($name,$size,$fname) = @_;
244: if ($name =~ /^HWFILE(\w+)$/) {
245: my $ident = $1;
246: my $item = 'HWFILESIZE'.$ident;
247: my $savesize = sprintf("%.6f",$size);
248: &Apache::loncommon::add_to_env("form.$item",$savesize);
249: my $maxsize= &Apache::lonnet::EXT("resource.$ident.maxfilesize");
250: if (!$maxsize) {
251: $maxsize = 10.0; # FIXME This should become a domain configuration.
252: }
253: if ($size > $maxsize) {
254: my $warn = 'HWFILETOOBIG'.$ident;
255: &Apache::loncommon::add_to_env("form.$warn",$fname);
256: return;
257: }
258: }
259: return 'ok';
260: }
261:
262: =pod
263:
264: =item sso_login()
265:
266: handle the case of the single sign on user, at this point $r->user
267: will be set and valid now need to find the loncapa user info and possibly
268: balance them
269: returns OK if it was a SSO and user was handled
270: undef if not SSO or no means to hanle the user
271:
272: =cut
273:
274: sub sso_login {
275: my ($r,$handle) = @_;
276:
277: my $lonidsdir=$r->dir_config('lonIDsDir');
278: if (!($r->user
279: && (!defined($env{'user.name'}) && !defined($env{'user.domain'}))
280: && ($handle eq ''))) {
281: # not an SSO case or already logged in
282: return undef;
283: }
284:
285: my ($user) = ($r->user =~ m/([a-zA-Z0-9_\-@.]*)/);
286:
287: my $query = $r->args;
288: my %form;
289: if ($query) {
290: my @items = ('role','symb');
291: &Apache::loncommon::get_unprocessed_cgi($query,\@items);
292: foreach my $item (@items) {
293: if (defined($env{'form.'.$item})) {
294: $form{$item} = $env{'form.'.$item};
295: }
296: }
297: }
298:
299: my $domain = $r->dir_config('lonSSOUserDomain');
300: if ($domain eq '') {
301: $domain = $r->dir_config('lonDefDomain');
302: }
303: my $home=&Apache::lonnet::homeserver($user,$domain);
304: if ($home !~ /(con_lost|no_host|no_such_host)/) {
305: &Apache::lonnet::logthis(" SSO authorized user $user ");
306: my ($is_balancer,$otherserver) =
307: &Apache::lonnet::check_loadbalancing($user,$domain);
308: if ($is_balancer) {
309: # login but immediately go to switch server to find us a new
310: # machine
311: &Apache::lonauth::success($r,$user,$domain,$home,'noredirect');
312: $env{'request.sso.login'} = 1;
313: if (defined($r->dir_config("lonSSOReloginServer"))) {
314: $env{'request.sso.reloginserver'} =
315: $r->dir_config('lonSSOReloginServer');
316: }
317: my $redirecturl = '/adm/switchserver';
318: if ($otherserver ne '') {
319: $redirecturl .= '?otherserver='.$otherserver;
320: }
321: $r->internal_redirect($redirecturl);
322: $r->set_handlers('PerlHandler'=> undef);
323: } else {
324: # need to login them in, so generate the need data that
325: # migrate expects to do login
326: my %info=('ip' => $r->connection->remote_ip(),
327: 'domain' => $domain,
328: 'username' => $user,
329: 'server' => $r->dir_config('lonHostID'),
330: 'sso.login' => 1
331: );
332: foreach my $item ('role','symb') {
333: if (exists($form{$item})) {
334: $info{$item} = $form{$item};
335: }
336: }
337: if ($r->dir_config("ssodirecturl") == 1) {
338: $info{'origurl'} = $r->uri;
339: }
340: if (defined($r->dir_config("lonSSOReloginServer"))) {
341: $info{'sso.reloginserver'} =
342: $r->dir_config('lonSSOReloginServer');
343: }
344: my $token =
345: &Apache::lonnet::tmpput(\%info,
346: $r->dir_config('lonHostID'));
347: $env{'form.token'} = $token;
348: $r->internal_redirect('/adm/migrateuser');
349: $r->set_handlers('PerlHandler'=> undef);
350: }
351: return OK;
352: } elsif (defined($r->dir_config('lonSSOUserUnknownRedirect'))) {
353: &Apache::lonnet::logthis(" SSO authorized unknown user $user ");
354: $r->subprocess_env->set('SSOUserUnknown' => $user);
355: $r->subprocess_env->set('SSOUserDomain' => $domain);
356: my @cancreate;
357: my %domconfig =
358: &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
359: if (ref($domconfig{'usercreation'}) eq 'HASH') {
360: if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
361: if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
362: @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}};
363: } elsif (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') &&
364: ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) {
365: @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'});
366: }
367: }
368: }
369: if (grep(/^sso$/,@cancreate)) {
370: $r->internal_redirect('/adm/createaccount');
371: } else {
372: $r->internal_redirect($r->dir_config('lonSSOUserUnknownRedirect'));
373: }
374: $r->set_handlers('PerlHandler'=> undef);
375: return OK;
376: }
377: return undef;
378: }
379:
380: sub handler {
381: my $r = shift;
382: my $requrl=$r->uri;
383: if (&Apache::lonnet::is_domainimage($requrl)) {
384: return OK;
385: }
386:
387: if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) {
388: return OK;
389: }
390:
391: my $handle = &Apache::lonnet::check_for_valid_session($r);
392:
393: my $result = &sso_login($r,$handle);
394: if (defined($result)) {
395: return $result;
396: }
397:
398: my ($is_balancer,$otherserver);
399:
400: if ($handle eq '') {
401: $r->log_reason("Cookie $handle not valid", $r->filename);
402: } elsif ($handle ne '') {
403:
404: # ------------------------------------------------------ Initialize Environment
405: my $lonidsdir=$r->dir_config('lonIDsDir');
406: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
407:
408: # --------------------------------------------------------- Initialize Language
409:
410: &Apache::lonlocal::get_language_handle($r);
411:
412: }
413:
414: # -------------------------------------------------- Should be a valid user now
415: if ($env{'user.name'} ne '' && $env{'user.domain'} ne '') {
416: # -------------------------------------------------------------- Resource State
417:
418: if ($requrl=~/^\/+(res|uploaded)\//) {
419: $env{'request.state'} = "published";
420: } else {
421: $env{'request.state'} = 'unknown';
422: }
423: $env{'request.filename'} = $r->filename;
424: $env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl);
425: if ($requrl =~ m{^/adm/wrapper/ext/}) {
426: my $query = $r->args;
427: if ($query) {
428: my $preserved;
429: foreach my $pair (split(/&/,$query)) {
430: my ($name, $value) = split(/=/,$pair);
431: unless ($name eq 'symb') {
432: $preserved .= $pair.'&';
433: }
434: }
435: $preserved =~ s/\&$//;
436: if ($preserved) {
437: $env{'request.external.querystring'} = $preserved;
438: }
439: }
440: }
441: # -------------------------------------------------------- Load POST parameters
442:
443: &Apache::lonacc::get_posted_cgi($r);
444:
445: # ------------------------------------------------------ Check if load balancer
446:
447: my $checkexempt;
448: if ($env{'user.loadbalexempt'} eq $r->dir_config('lonHostID')) {
449: if ($env{'user.loadbalcheck.time'} + 600 > time) {
450: $checkexempt = 1;
451: }
452: }
453: unless ($checkexempt) {
454: ($is_balancer,$otherserver) =
455: &Apache::lonnet::check_loadbalancing($env{'user.name'},
456: $env{'user.domain'});
457: }
458: if ($is_balancer) {
459: $r->set_handlers('PerlResponseHandler'=>
460: [\&Apache::switchserver::handler]);
461: if ($otherserver ne '') {
462: $env{'form.otherserver'} = $otherserver;
463: }
464: }
465:
466: # ---------------------------------------------------------------- Check access
467: my $now = time;
468: if ($requrl !~ m{^/(?:adm|public|prtspool)/}
469: || $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) {
470: my $access=&Apache::lonnet::allowed('bre',$requrl);
471: if ($access eq '1') {
472: $env{'user.error.msg'}="$requrl:bre:0:0:Choose Course";
473: return HTTP_NOT_ACCEPTABLE;
474: }
475: if ($access eq 'A') {
476: &Apache::restrictedaccess::setup_handler($r);
477: return OK;
478: }
479: if ($access eq 'B') {
480: &Apache::blockedaccess::setup_handler($r);
481: return OK;
482: }
483: if (($access ne '2') && ($access ne 'F')) {
484: if ($requrl =~ m{^/res/}) {
485: $access = &Apache::lonnet::allowed('bro',$requrl);
486: if ($access ne 'F') {
487: if ($requrl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
488: $access = &Apache::lonnet::allowed('bre','/res/lib/templates/simpleproblem.problem');
489: if ($access ne 'F') {
490: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
491: return HTTP_NOT_ACCEPTABLE;
492: }
493: } else {
494: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
495: return HTTP_NOT_ACCEPTABLE;
496: }
497: }
498: } else {
499: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
500: return HTTP_NOT_ACCEPTABLE;
501: }
502: }
503: }
504: if ($requrl =~ m|^/prtspool/|) {
505: my $start='/prtspool/'.$env{'user.name'}.'_'.
506: $env{'user.domain'};
507: if ($requrl !~ /^\Q$start\E/) {
508: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
509: return HTTP_NOT_ACCEPTABLE;
510: }
511: }
512: if ($requrl =~ m|^/zipspool/|) {
513: my $start='/zipspool/zipout/'.$env{'user.name'}.":".
514: $env{'user.domain'};
515: if ($requrl !~ /^\Q$start\E/) {
516: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
517: return HTTP_NOT_ACCEPTABLE;
518: }
519: }
520: if ($env{'user.name'} eq 'public' &&
521: $env{'user.domain'} eq 'public' &&
522: $requrl !~ m{^/+(res|public|uploaded)/} &&
523: $requrl !~ m{^/adm/[^/]+/[^/]+/aboutme/portfolio$ }x &&
524: $requrl !~ m{^/adm/blockingstatus/.*$} &&
525: $requrl !~ m{^/+adm/(help|logout|restrictedaccess|randomlabel\.png)}) {
526: $env{'request.querystring'}=$r->args;
527: $env{'request.firsturl'}=$requrl;
528: return FORBIDDEN;
529: }
530: # ------------------------------------------------------------- This is allowed
531: if ($env{'request.course.id'}) {
532: &Apache::lonnet::countacc($requrl);
533: $requrl=~/\.(\w+)$/;
534: my $query=$r->args;
535: if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
536: ($requrl=~/^\/adm\/.*\/(aboutme|smppg|bulletinboard)(\?|$ )/x) ||
537: ($requrl=~/^\/adm\/wrapper\//) ||
538: ($requrl=~m|^/adm/coursedocs/showdoc/|) ||
539: ($requrl=~m|\.problem/smpedit$|) ||
540: ($requrl=~/^\/public\/.*\/syllabus$/) ||
541: ($requrl=~/^\/adm\/(viewclasslist|navmaps)$/) ||
542: ($requrl=~/^\/adm\/.*\/aboutme\/portfolio(\?|$)/)) {
543: # ------------------------------------- This is serious stuff, get symb and log
544: my $symb;
545: if ($query) {
546: &Apache::loncommon::get_unprocessed_cgi($query,['symb']);
547: }
548: if ($env{'form.symb'}) {
549: $symb=&Apache::lonnet::symbclean($env{'form.symb'});
550: if ($requrl =~ m|^/adm/wrapper/|
551: || $requrl =~ m|^/adm/coursedocs/showdoc/|) {
552: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
553: &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
554: 'last_known' =>[$murl,$mid]);
555: } elsif ((&Apache::lonnet::symbverify($symb,$requrl)) ||
556: (($requrl=~m|(.*)/smpedit$|) &&
557: &Apache::lonnet::symbverify($symb,$1)) ||
558: (($requrl=~m|(.*/aboutme)/portfolio$|) &&
559: &Apache::lonnet::symbverify($symb,$1))) {
560: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
561: &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
562: 'last_known' =>[$murl,$mid]);
563: } else {
564: $r->log_reason('Invalid symb for '.$requrl.': '.
565: $symb);
566: $env{'user.error.msg'}=
567: "$requrl:bre:1:1:Invalid Access";
568: return HTTP_NOT_ACCEPTABLE;
569: }
570: } else {
571: if ($requrl=~m{^(/adm/.*/aboutme)/portfolio$}) {
572: $requrl = $1;
573: }
574: $symb=&Apache::lonnet::symbread($requrl);
575: if (&Apache::lonnet::is_on_map($requrl) && $symb &&
576: !&Apache::lonnet::symbverify($symb,$requrl)) {
577: $r->log_reason('Invalid symb for '.$requrl.': '.$symb);
578: $env{'user.error.msg'}=
579: "$requrl:bre:1:1:Invalid Access";
580: return HTTP_NOT_ACCEPTABLE;
581: }
582: if ($symb) {
583: my ($map,$mid,$murl)=
584: &Apache::lonnet::decode_symb($symb);
585: &Apache::lonnet::symblist($map,$murl =>[$murl,$mid],
586: 'last_known' =>[$murl,$mid]);
587: }
588: }
589: $env{'request.symb'}=$symb;
590: &Apache::lonnet::courseacclog($symb);
591: } else {
592: # ------------------------------------------------------- This is other content
593: &Apache::lonnet::courseacclog($requrl);
594: }
595: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};;
596: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};;
597: if ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/docs/.+\.html?$}) {
598: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
599: if ($query) {
600: &Apache::loncommon::get_unprocessed_cgi($query,['forceedit']);
601: if ($env{'form.forceedit'}) {
602: $env{'request.state'} = 'edit';
603: }
604: }
605: }
606: }
607: }
608: return OK;
609: } else {
610: my $defdom=$r->dir_config('lonDefDomain');
611: ($is_balancer,$otherserver) =
612: &Apache::lonnet::check_loadbalancing(undef,$defdom);
613: if ($is_balancer) {
614: $r->set_handlers('PerlResponseHandler'=>
615: [\&Apache::switchserver::handler]);
616: if ($otherserver ne '') {
617: $env{'form.otherserver'} = $otherserver;
618: }
619: }
620: }
621: # -------------------------------------------- See if this is a public resource
622: if ($requrl=~m|^/+adm/+help/+|) {
623: return OK;
624: }
625: # ------------------------------------ See if this is a viewable portfolio file
626: if (&Apache::lonnet::is_portfolio_url($requrl)) {
627: my $access=&Apache::lonnet::allowed('bre',$requrl);
628: if ($access eq 'A') {
629: &Apache::restrictedaccess::setup_handler($r);
630: return OK;
631: }
632: if (($access ne '2') && ($access ne 'F')) {
633: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
634: return HTTP_NOT_ACCEPTABLE;
635: }
636: }
637:
638: # -------------------------------------------------------------- Not authorized
639: $requrl=~/\.(\w+)$/;
640: # if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
641: # ($requrl=~/^\/adm\/(roles|logout|email|menu|remote)/) ||
642: # ($requrl=~m|^/prtspool/|)) {
643: # -------------------------- Store where they wanted to go and get login screen
644: $env{'request.querystring'}=$r->args;
645: $env{'request.firsturl'}=$requrl;
646: return FORBIDDEN;
647: # } else {
648: # --------------------------------------------------------------------- Goodbye
649: # return HTTP_BAD_REQUEST;
650: # }
651: }
652:
653: 1;
654: __END__
655:
656: =pod
657:
658: =back
659:
660: =cut
661:
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