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lonacc.pm
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Thu Dec 19 22:50:16 2013 UTC (10 years, 4 months ago) by
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- Call to &sso_login() not needed when lonacc::handler() is called in the
context of an internal redirect to /adm/switchserver.
- Avoid ISE on loadbalancer server following change in checkauthen.pm rev
1.14
1: # The LearningOnline Network
2: # Cookie Based Access Handler
3: #
4: # $Id: lonacc.pm,v 1.150 2013/12/19 22:50:16 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: =cut
93:
94:
95: package Apache::lonacc;
96:
97: use strict;
98: use Apache::Constants qw(:common :http :methods);
99: use Apache::File;
100: use Apache::lonnet;
101: use Apache::loncommon();
102: use Apache::lonlocal;
103: use Apache::restrictedaccess();
104: use Apache::blockedaccess();
105: use Fcntl qw(:flock);
106: use LONCAPA qw(:DEFAULT :match);
107:
108: sub cleanup {
109: my ($r)=@_;
110: if (! $r->is_initial_req()) { return DECLINED; }
111: &Apache::lonnet::save_cache();
112: &Apache::lontexconvert::jsMath_reset();
113: return OK;
114: }
115:
116: sub goodbye {
117: my ($r)=@_;
118: &Apache::lonnet::goodbye();
119: return DONE;
120: }
121:
122: ###############################################
123:
124: sub get_posted_cgi {
125: my ($r,$fields) = @_;
126:
127: my $buffer;
128: if ($r->header_in('Content-length')) {
129: $r->read($buffer,$r->header_in('Content-length'),0);
130: }
131: my $content_type = $r->header_in('Content-type');
132: if ($content_type !~ m{^multipart/form-data}) {
133: my @pairs=split(/&/,$buffer);
134: my $pair;
135: foreach $pair (@pairs) {
136: my ($name,$value) = split(/=/,$pair);
137: $value =~ tr/+/ /;
138: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
139: $name =~ tr/+/ /;
140: $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
141: if (ref($fields) eq 'ARRAY') {
142: next if (!grep(/^\Q$name\E$/,@{$fields}));
143: }
144: &Apache::loncommon::add_to_env("form.$name",$value);
145: }
146: } else {
147: my ($contentsep) = ($content_type =~ /boundary=\"?([^\";,]+)\"?/);
148: my @lines = split (/\n/,$buffer);
149: my $name='';
150: my $value='';
151: my $fname='';
152: my $fmime='';
153: my $i;
154: for ($i=0;$i<=$#lines;$i++) {
155: if ($lines[$i]=~/^--\Q$contentsep\E/) {
156: if ($name) {
157: chomp($value);
158: if (($r->uri eq '/adm/portfolio') &&
159: ($name eq 'uploaddoc')) {
160: if (length($value) == 1) {
161: $value=~s/[\r\n]$//;
162: }
163: }
164: if (ref($fields) eq 'ARRAY') {
165: next if (!grep(/^\Q$name\E$/,@{$fields}));
166: }
167: if ($fname) {
168: if ($env{'form.symb'} ne '') {
169: my $size = (length($value))/(1024.0 * 1024.0);
170: if (&upload_size_allowed($name,$size,$fname) eq 'ok') {
171: $env{"form.$name.filename"}=$fname;
172: $env{"form.$name.mimetype"}=$fmime;
173: &Apache::loncommon::add_to_env("form.$name",$value);
174: }
175: } else {
176: $env{"form.$name.filename"}=$fname;
177: $env{"form.$name.mimetype"}=$fmime;
178: &Apache::loncommon::add_to_env("form.$name",$value);
179: }
180: } else {
181: $value=~s/\s+$//s;
182: &Apache::loncommon::add_to_env("form.$name",$value);
183: }
184: }
185: if ($i<$#lines) {
186: $i++;
187: $lines[$i]=~
188: /Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i;
189: $name=$1;
190: $value='';
191: if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) {
192: $fname=$1;
193: if
194: ($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) {
195: $fmime=$1;
196: $i++;
197: } else {
198: $fmime='';
199: }
200: } else {
201: $fname='';
202: $fmime='';
203: }
204: $i++;
205: }
206: } else {
207: $value.=$lines[$i]."\n";
208: }
209: }
210: }
211: #
212: # Digested POSTed values
213: #
214: # Remember the way this was originally done (GET or POST)
215: #
216: $env{'request.method'}=$ENV{'REQUEST_METHOD'};
217: #
218: # There may also be stuff in the query string
219: # Tell subsequent handlers that this was GET, not POST, so they can access query string.
220: # Also, unset POSTed content length to cover all tracks.
221: #
222:
223: $r->method_number(M_GET);
224:
225: $r->method('GET');
226: $r->headers_in->unset('Content-length');
227: }
228:
229: =pod
230:
231: =over
232:
233: =item upload_size_allowed()
234:
235: Perform size checks for file uploads to essayresponse items in course context.
236:
237: Add form.HWFILESIZE.$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. If $r->user() is set this means either it was either set by
269: SSO or by checkauthen.pm, if a valid cookie was found. The latter case can
270: be identified by the third arg ($usename), except when lonacc is called in
271: an internal redirect to /adm/switchserver (e.g., load-balancing following
272: successful authentication) -- no cookie set yet. For that particular case
273: simply skip the call to sso_login().
274:
275: returns OK if it was SSO and user was handled.
276: returns undef if not SSO or no means to handle the user.
277:
278: =cut
279:
280: sub sso_login {
281: my ($r,$handle,$username) = @_;
282:
283: my $lonidsdir=$r->dir_config('lonIDsDir');
284: if (($r->user eq '') || ($username ne '') ||
285: (defined($env{'user.name'}) && (defined($env{'user.domain'}))
286: && ($handle ne ''))) {
287: # not an SSO case or already logged in
288: return undef;
289: }
290:
291: my ($user) = ($r->user =~ m/([a-zA-Z0-9_\-@.]*)/);
292:
293: my $query = $r->args;
294: my %form;
295: if ($query) {
296: my @items = ('role','symb','iptoken');
297: &Apache::loncommon::get_unprocessed_cgi($query,\@items);
298: foreach my $item (@items) {
299: if (defined($env{'form.'.$item})) {
300: $form{$item} = $env{'form.'.$item};
301: }
302: }
303: }
304:
305: my %sessiondata;
306: if ($form{'iptoken'}) {
307: %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
308: my $delete = &Apache::lonnet::tmpdel($form{'token'});
309: }
310:
311: my $domain = $r->dir_config('lonSSOUserDomain');
312: if ($domain eq '') {
313: $domain = $r->dir_config('lonDefDomain');
314: }
315: my $home=&Apache::lonnet::homeserver($user,$domain);
316: if ($home !~ /(con_lost|no_host|no_such_host)/) {
317: &Apache::lonnet::logthis(" SSO authorized user $user ");
318: my ($is_balancer,$otherserver,$hosthere);
319: if ($form{'iptoken'}) {
320: if (($sessiondata{'domain'} eq $form{'udom'}) &&
321: ($sessiondata{'username'} eq $form{'uname'})) {
322: $hosthere = 1;
323: }
324: }
325: unless ($hosthere) {
326: ($is_balancer,$otherserver) =
327: &Apache::lonnet::check_loadbalancing($user,$domain);
328: }
329:
330: if ($is_balancer) {
331: # login but immediately go to switch server to find us a new
332: # machine
333: &Apache::lonauth::success($r,$user,$domain,$home,'noredirect');
334: $env{'request.sso.login'} = 1;
335: if (defined($r->dir_config("lonSSOReloginServer"))) {
336: $env{'request.sso.reloginserver'} =
337: $r->dir_config('lonSSOReloginServer');
338: }
339: my $redirecturl = '/adm/switchserver';
340: if ($otherserver ne '') {
341: $redirecturl .= '?otherserver='.$otherserver;
342: }
343: $r->internal_redirect($redirecturl);
344: $r->set_handlers('PerlHandler'=> undef);
345: } else {
346: # need to login them in, so generate the need data that
347: # migrate expects to do login
348: my $ip;
349: my $c = $r->connection;
350: eval {
351: $ip = $c->remote_ip();
352: };
353: if ($@) {
354: $ip = $c->client_ip();
355: }
356: my %info=('ip' => $ip,
357: 'domain' => $domain,
358: 'username' => $user,
359: 'server' => $r->dir_config('lonHostID'),
360: 'sso.login' => 1
361: );
362: foreach my $item ('role','symb') {
363: if (exists($form{$item})) {
364: $info{$item} = $form{$item};
365: }
366: }
367: if ($r->dir_config("ssodirecturl") == 1) {
368: $info{'origurl'} = $r->uri;
369: }
370: if (defined($r->dir_config("lonSSOReloginServer"))) {
371: $info{'sso.reloginserver'} =
372: $r->dir_config('lonSSOReloginServer');
373: }
374: my $token =
375: &Apache::lonnet::tmpput(\%info,
376: $r->dir_config('lonHostID'));
377: $env{'form.token'} = $token;
378: $r->internal_redirect('/adm/migrateuser');
379: $r->set_handlers('PerlHandler'=> undef);
380: }
381: return OK;
382: } elsif (defined($r->dir_config('lonSSOUserUnknownRedirect'))) {
383: &Apache::lonnet::logthis(" SSO authorized unknown user $user ");
384: $r->subprocess_env->set('SSOUserUnknown' => $user);
385: $r->subprocess_env->set('SSOUserDomain' => $domain);
386: my @cancreate;
387: my %domconfig =
388: &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
389: if (ref($domconfig{'usercreation'}) eq 'HASH') {
390: if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
391: if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
392: @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}};
393: } elsif (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') &&
394: ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) {
395: @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'});
396: }
397: }
398: }
399: if (grep(/^sso$/,@cancreate)) {
400: $r->internal_redirect('/adm/createaccount');
401: } else {
402: $r->internal_redirect($r->dir_config('lonSSOUserUnknownRedirect'));
403: }
404: $r->set_handlers('PerlHandler'=> undef);
405: return OK;
406: }
407: return undef;
408: }
409:
410: sub handler {
411: my $r = shift;
412: my $requrl=$r->uri;
413:
414: if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) {
415: return OK;
416: }
417:
418: if (&Apache::lonnet::is_domainimage($requrl)) {
419: return OK;
420: }
421:
422: my %user;
423: my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user);
424:
425: unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) {
426: my $result = &sso_login($r,$handle,$user{'name'});
427: if (defined($result)) {
428: return $result;
429: }
430: }
431:
432: my ($is_balancer,$otherserver);
433:
434: if ($handle eq '') {
435: unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) {
436: $r->log_reason("Cookie not valid", $r->filename);
437: }
438: } elsif ($handle ne '') {
439:
440: # ------------------------------------------------------ Initialize Environment
441: my $lonidsdir=$r->dir_config('lonIDsDir');
442: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
443:
444: # --------------------------------------------------------- Initialize Language
445:
446: &Apache::lonlocal::get_language_handle($r);
447:
448: }
449:
450: # -------------------------------------------------- Should be a valid user now
451: if ($env{'user.name'} ne '' && $env{'user.domain'} ne '') {
452: # -------------------------------------------------------------- Resource State
453:
454: my ($cdom,$cnum);
455: if ($env{'request.course.id'}) {
456: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
457: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
458: }
459: if ($requrl=~/^\/+(res|uploaded)\//) {
460: $env{'request.state'} = "published";
461: } else {
462: $env{'request.state'} = 'unknown';
463: }
464: $env{'request.filename'} = $r->filename;
465: $env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl);
466: my $suppext;
467: if ($requrl =~ m{^/adm/wrapper/ext/}) {
468: my $query = $r->args;
469: if ($query) {
470: my $preserved;
471: foreach my $pair (split(/&/,$query)) {
472: my ($name, $value) = split(/=/,$pair);
473: unless ($name eq 'symb') {
474: $preserved .= $pair.'&';
475: }
476: if (($env{'request.course.id'}) && ($name eq 'folderpath')) {
477: if ($value =~ /^supplemental/) {
478: $suppext = 1;
479: }
480: }
481: }
482: $preserved =~ s/\&$//;
483: if ($preserved) {
484: $env{'request.external.querystring'} = $preserved;
485: }
486: }
487: } elsif ($env{'request.course.id'} &&
488: (($requrl =~ m{^/adm/$match_domain/$match_username/aboutme$}) ||
489: ($requrl =~ m{^/public/$cdom/$cnum/syllabus$}))) {
490: my $query = $r->args;
491: if ($query) {
492: foreach my $pair (split(/&/,$query)) {
493: my ($name, $value) = split(/=/,$pair);
494: if ($name eq 'folderpath') {
495: if ($value =~ /^supplemental/) {
496: $suppext = 1;
497: }
498: }
499: }
500: }
501: }
502: # -------------------------------------------------------- Load POST parameters
503:
504: &Apache::lonacc::get_posted_cgi($r);
505:
506: # ------------------------------------------------------ Check if load balancer
507:
508: my $checkexempt;
509: if ($env{'user.loadbalexempt'} eq $r->dir_config('lonHostID')) {
510: if ($env{'user.loadbalcheck.time'} + 600 > time) {
511: $checkexempt = 1;
512: }
513: }
514: if ($env{'user.noloadbalance'} eq $r->dir_config('lonHostID')) {
515: $checkexempt = 1;
516: }
517: unless ($checkexempt) {
518: ($is_balancer,$otherserver) =
519: &Apache::lonnet::check_loadbalancing($env{'user.name'},
520: $env{'user.domain'});
521: }
522: if ($is_balancer) {
523: $r->set_handlers('PerlResponseHandler'=>
524: [\&Apache::switchserver::handler]);
525: if ($otherserver ne '') {
526: $env{'form.otherserver'} = $otherserver;
527: }
528: }
529:
530: # ---------------------------------------------------------------- Check access
531: my $now = time;
532: if ($requrl !~ m{^/(?:adm|public|prtspool)/}
533: || $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) {
534: my $access=&Apache::lonnet::allowed('bre',$requrl);
535: if ($access eq '1') {
536: $env{'user.error.msg'}="$requrl:bre:0:0:Choose Course";
537: return HTTP_NOT_ACCEPTABLE;
538: }
539: if ($access eq 'A') {
540: &Apache::restrictedaccess::setup_handler($r);
541: return OK;
542: }
543: if ($access eq 'B') {
544: &Apache::blockedaccess::setup_handler($r);
545: return OK;
546: }
547: if (($access ne '2') && ($access ne 'F')) {
548: if ($requrl =~ m{^/res/}) {
549: $access = &Apache::lonnet::allowed('bro',$requrl);
550: if ($access ne 'F') {
551: if ($requrl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
552: $access = &Apache::lonnet::allowed('bre','/res/lib/templates/simpleproblem.problem');
553: if ($access ne 'F') {
554: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
555: return HTTP_NOT_ACCEPTABLE;
556: }
557: } else {
558: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
559: return HTTP_NOT_ACCEPTABLE;
560: }
561: }
562: } else {
563: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
564: return HTTP_NOT_ACCEPTABLE;
565: }
566: }
567: }
568: if ($requrl =~ m|^/prtspool/|) {
569: my $start='/prtspool/'.$env{'user.name'}.'_'.
570: $env{'user.domain'};
571: if ($requrl !~ /^\Q$start\E/) {
572: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
573: return HTTP_NOT_ACCEPTABLE;
574: }
575: }
576: if ($requrl =~ m|^/zipspool/|) {
577: my $start='/zipspool/zipout/'.$env{'user.name'}.":".
578: $env{'user.domain'};
579: if ($requrl !~ /^\Q$start\E/) {
580: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
581: return HTTP_NOT_ACCEPTABLE;
582: }
583: }
584: if ($env{'user.name'} eq 'public' &&
585: $env{'user.domain'} eq 'public' &&
586: $requrl !~ m{^/+(res|public|uploaded)/} &&
587: $requrl !~ m{^/adm/[^/]+/[^/]+/aboutme/portfolio$ }x &&
588: $requrl !~ m{^/adm/blockingstatus/.*$} &&
589: $requrl !~ m{^/+adm/(help|logout|restrictedaccess|randomlabel\.png)}) {
590: $env{'request.querystring'}=$r->args;
591: $env{'request.firsturl'}=$requrl;
592: return FORBIDDEN;
593: }
594: # ------------------------------------------------------------- This is allowed
595: if ($env{'request.course.id'}) {
596: &Apache::lonnet::countacc($requrl);
597: $requrl=~/\.(\w+)$/;
598: my $query=$r->args;
599: if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
600: ($requrl=~/^\/adm\/.*\/(aboutme|smppg|bulletinboard)(\?|$ )/x) ||
601: ($requrl=~/^\/adm\/wrapper\//) ||
602: ($requrl=~m|^/adm/coursedocs/showdoc/|) ||
603: ($requrl=~m|\.problem/smpedit$|) ||
604: ($requrl=~/^\/public\/.*\/syllabus$/) ||
605: ($requrl=~/^\/adm\/(viewclasslist|navmaps)$/) ||
606: ($requrl=~/^\/adm\/.*\/aboutme\/portfolio(\?|$)/)) {
607: # ------------------------------------- This is serious stuff, get symb and log
608: my $symb;
609: if ($query) {
610: &Apache::loncommon::get_unprocessed_cgi($query,['symb','folderpath']);
611: }
612: if ($env{'form.symb'}) {
613: $symb=&Apache::lonnet::symbclean($env{'form.symb'});
614: if ($requrl =~ m|^/adm/wrapper/|
615: || $requrl =~ m|^/adm/coursedocs/showdoc/|) {
616: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
617: &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
618: 'last_known' =>[$murl,$mid]);
619: } elsif ((&Apache::lonnet::symbverify($symb,$requrl)) ||
620: (($requrl=~m|(.*)/smpedit$|) &&
621: &Apache::lonnet::symbverify($symb,$1)) ||
622: (($requrl=~m|(.*/aboutme)/portfolio$|) &&
623: &Apache::lonnet::symbverify($symb,$1))) {
624: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
625: &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
626: 'last_known' =>[$murl,$mid]);
627: } else {
628: $r->log_reason('Invalid symb for '.$requrl.': '.
629: $symb);
630: $env{'user.error.msg'}=
631: "$requrl:bre:1:1:Invalid Access";
632: return HTTP_NOT_ACCEPTABLE;
633: }
634: } else {
635: if ($requrl=~m{^(/adm/.*/aboutme)/portfolio$}) {
636: $requrl = $1;
637: }
638: unless ($suppext) {
639: $symb=&Apache::lonnet::symbread($requrl);
640: if (&Apache::lonnet::is_on_map($requrl) && $symb &&
641: !&Apache::lonnet::symbverify($symb,$requrl)) {
642: $r->log_reason('Invalid symb for '.$requrl.': '.$symb);
643: $env{'user.error.msg'}=
644: "$requrl:bre:1:1:Invalid Access";
645: return HTTP_NOT_ACCEPTABLE;
646: }
647: if ($symb) {
648: my ($map,$mid,$murl)=
649: &Apache::lonnet::decode_symb($symb);
650: &Apache::lonnet::symblist($map,$murl =>[$murl,$mid],
651: 'last_known' =>[$murl,$mid]);
652: }
653: }
654: }
655: $env{'request.symb'}=$symb;
656: &Apache::lonnet::courseacclog($symb);
657: } else {
658: # ------------------------------------------------------- This is other content
659: &Apache::lonnet::courseacclog($requrl);
660: }
661: if ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/.+\.html?$}) {
662: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
663: if ($query) {
664: &Apache::loncommon::get_unprocessed_cgi($query,['forceedit']);
665: if ($env{'form.forceedit'}) {
666: $env{'request.state'} = 'edit';
667: }
668: }
669: }
670: } elsif ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/portfolio/syllabus/.+\.html?$}) {
671: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
672: if ($query) {
673: &Apache::loncommon::get_unprocessed_cgi($query,['forceedit','editmode']);
674: if (($env{'form.forceedit'}) || ($env{'form.editmode'})) {
675: $env{'request.state'} = 'edit';
676: }
677: }
678: }
679: }
680: }
681: return OK;
682: } else {
683: my $defdom=$r->dir_config('lonDefDomain');
684: ($is_balancer,$otherserver) =
685: &Apache::lonnet::check_loadbalancing(undef,$defdom);
686: if ($is_balancer) {
687: $r->set_handlers('PerlResponseHandler'=>
688: [\&Apache::switchserver::handler]);
689: if ($otherserver ne '') {
690: $env{'form.otherserver'} = $otherserver;
691: }
692: }
693: }
694: # -------------------------------------------- See if this is a public resource
695: if ($requrl=~m|^/+adm/+help/+|) {
696: return OK;
697: }
698: # ------------------------------------ See if this is a viewable portfolio file
699: if (&Apache::lonnet::is_portfolio_url($requrl)) {
700: my $access=&Apache::lonnet::allowed('bre',$requrl);
701: if ($access eq 'A') {
702: &Apache::restrictedaccess::setup_handler($r);
703: return OK;
704: }
705: if (($access ne '2') && ($access ne 'F')) {
706: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
707: return HTTP_NOT_ACCEPTABLE;
708: }
709: }
710:
711: # -------------------------------------------------------------- Not authorized
712: $requrl=~/\.(\w+)$/;
713: # if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
714: # ($requrl=~/^\/adm\/(roles|logout|email|menu|remote)/) ||
715: # ($requrl=~m|^/prtspool/|)) {
716: # -------------------------- Store where they wanted to go and get login screen
717: $env{'request.querystring'}=$r->args;
718: $env{'request.firsturl'}=$requrl;
719: return FORBIDDEN;
720: # } else {
721: # --------------------------------------------------------------------- Goodbye
722: # return HTTP_BAD_REQUEST;
723: # }
724: }
725:
726: 1;
727: __END__
728:
729: =pod
730:
731: =back
732:
733: =cut
734:
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