File:
[LON-CAPA] /
loncom /
auth /
lonacc.pm
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Sun Sep 29 00:49:24 2013 UTC (10 years, 7 months ago) by
raeburn
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CVS tags:
HEAD
- Bug 6675
- Case where $env{'REMOTE_ADDR'} as reported to server selected to host
user session, is different from $env{'REMOTE_ADDR'} as reported to
server which handled original authentication request.
- Domain configuration for a load balancing server can be set to one of
the following, if an IP mismatch is detected by /adm/migrateuser
during credentials checking after redirect via /adm/switchserver
(i) Session will be hosted on Load Balancer
(ii) Session will be hosted on offload server
for each of (a) SSO users from load balancer's domain, (b) non-SSO users
- Setting to host on load balancer will be ignored if switch server was called
by an author or co-author switching to server housing the authoring space.
1: # The LearningOnline Network
2: # Cookie Based Access Handler
3: #
4: # $Id: lonacc.pm,v 1.145 2013/09/29 00:49:24 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 qw(:DEFAULT :match);
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 (($r->user eq '') ||
279: (defined($env{'user.name'}) && (defined($env{'user.domain'}))
280: && ($handle ne ''))) {
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','iptoken');
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 %sessiondata;
300: if ($form{'iptoken'}) {
301: %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
302: my $delete = &Apache::lonnet::tmpdel($form{'token'});
303: }
304:
305: my $domain = $r->dir_config('lonSSOUserDomain');
306: if ($domain eq '') {
307: $domain = $r->dir_config('lonDefDomain');
308: }
309: my $home=&Apache::lonnet::homeserver($user,$domain);
310: if ($home !~ /(con_lost|no_host|no_such_host)/) {
311: &Apache::lonnet::logthis(" SSO authorized user $user ");
312: my ($is_balancer,$otherserver,$hosthere);
313: if ($form{'iptoken'}) {
314: if (($sessiondata{'domain'} eq $form{'udom'}) &&
315: ($sessiondata{'username'} eq $form{'uname'})) {
316: $hosthere = 1;
317: }
318: }
319: unless ($hosthere) {
320: ($is_balancer,$otherserver) =
321: &Apache::lonnet::check_loadbalancing($user,$domain);
322: }
323:
324: if ($is_balancer) {
325: # login but immediately go to switch server to find us a new
326: # machine
327: &Apache::lonauth::success($r,$user,$domain,$home,'noredirect');
328: $env{'request.sso.login'} = 1;
329: if (defined($r->dir_config("lonSSOReloginServer"))) {
330: $env{'request.sso.reloginserver'} =
331: $r->dir_config('lonSSOReloginServer');
332: }
333: my $redirecturl = '/adm/switchserver';
334: if ($otherserver ne '') {
335: $redirecturl .= '?otherserver='.$otherserver;
336: }
337: $r->internal_redirect($redirecturl);
338: $r->set_handlers('PerlHandler'=> undef);
339: } else {
340: # need to login them in, so generate the need data that
341: # migrate expects to do login
342: my %info=('ip' => $r->connection->remote_ip(),
343: 'domain' => $domain,
344: 'username' => $user,
345: 'server' => $r->dir_config('lonHostID'),
346: 'sso.login' => 1
347: );
348: foreach my $item ('role','symb') {
349: if (exists($form{$item})) {
350: $info{$item} = $form{$item};
351: }
352: }
353: if ($r->dir_config("ssodirecturl") == 1) {
354: $info{'origurl'} = $r->uri;
355: }
356: if (defined($r->dir_config("lonSSOReloginServer"))) {
357: $info{'sso.reloginserver'} =
358: $r->dir_config('lonSSOReloginServer');
359: }
360: my $token =
361: &Apache::lonnet::tmpput(\%info,
362: $r->dir_config('lonHostID'));
363: $env{'form.token'} = $token;
364: $r->internal_redirect('/adm/migrateuser');
365: $r->set_handlers('PerlHandler'=> undef);
366: }
367: return OK;
368: } elsif (defined($r->dir_config('lonSSOUserUnknownRedirect'))) {
369: &Apache::lonnet::logthis(" SSO authorized unknown user $user ");
370: $r->subprocess_env->set('SSOUserUnknown' => $user);
371: $r->subprocess_env->set('SSOUserDomain' => $domain);
372: my @cancreate;
373: my %domconfig =
374: &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
375: if (ref($domconfig{'usercreation'}) eq 'HASH') {
376: if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
377: if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
378: @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}};
379: } elsif (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') &&
380: ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) {
381: @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'});
382: }
383: }
384: }
385: if (grep(/^sso$/,@cancreate)) {
386: $r->internal_redirect('/adm/createaccount');
387: } else {
388: $r->internal_redirect($r->dir_config('lonSSOUserUnknownRedirect'));
389: }
390: $r->set_handlers('PerlHandler'=> undef);
391: return OK;
392: }
393: return undef;
394: }
395:
396: sub handler {
397: my $r = shift;
398: my $requrl=$r->uri;
399: if (&Apache::lonnet::is_domainimage($requrl)) {
400: return OK;
401: }
402:
403: if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) {
404: return OK;
405: }
406:
407: my $handle = &Apache::lonnet::check_for_valid_session($r);
408:
409: my $result = &sso_login($r,$handle);
410: if (defined($result)) {
411: return $result;
412: }
413:
414: my ($is_balancer,$otherserver);
415:
416: if ($handle eq '') {
417: unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) {
418: $r->log_reason("Cookie $handle not valid", $r->filename);
419: }
420: } elsif ($handle ne '') {
421:
422: # ------------------------------------------------------ Initialize Environment
423: my $lonidsdir=$r->dir_config('lonIDsDir');
424: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
425:
426: # --------------------------------------------------------- Initialize Language
427:
428: &Apache::lonlocal::get_language_handle($r);
429:
430: }
431:
432: # -------------------------------------------------- Should be a valid user now
433: if ($env{'user.name'} ne '' && $env{'user.domain'} ne '') {
434: # -------------------------------------------------------------- Resource State
435:
436: my ($cdom,$cnum);
437: if ($env{'request.course.id'}) {
438: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
439: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
440: }
441: if ($requrl=~/^\/+(res|uploaded)\//) {
442: $env{'request.state'} = "published";
443: } else {
444: $env{'request.state'} = 'unknown';
445: }
446: $env{'request.filename'} = $r->filename;
447: $env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl);
448: my $suppext;
449: if ($requrl =~ m{^/adm/wrapper/ext/}) {
450: my $query = $r->args;
451: if ($query) {
452: my $preserved;
453: foreach my $pair (split(/&/,$query)) {
454: my ($name, $value) = split(/=/,$pair);
455: unless ($name eq 'symb') {
456: $preserved .= $pair.'&';
457: }
458: if (($env{'request.course.id'}) && ($name eq 'folderpath')) {
459: if ($value =~ /^supplemental/) {
460: $suppext = 1;
461: }
462: }
463: }
464: $preserved =~ s/\&$//;
465: if ($preserved) {
466: $env{'request.external.querystring'} = $preserved;
467: }
468: }
469: } elsif ($env{'request.course.id'} &&
470: (($requrl =~ m{^/adm/$match_domain/$match_username/aboutme$}) ||
471: ($requrl =~ m{^/public/$cdom/$cnum/syllabus$}))) {
472: my $query = $r->args;
473: if ($query) {
474: foreach my $pair (split(/&/,$query)) {
475: my ($name, $value) = split(/=/,$pair);
476: if ($name eq 'folderpath') {
477: if ($value =~ /^supplemental/) {
478: $suppext = 1;
479: }
480: }
481: }
482: }
483: }
484: # -------------------------------------------------------- Load POST parameters
485:
486: &Apache::lonacc::get_posted_cgi($r);
487:
488: # ------------------------------------------------------ Check if load balancer
489:
490: my $checkexempt;
491: if ($env{'user.loadbalexempt'} eq $r->dir_config('lonHostID')) {
492: if ($env{'user.loadbalcheck.time'} + 600 > time) {
493: $checkexempt = 1;
494: }
495: }
496: if ($env{'user.noloadbalance'} eq $r->dir_config('lonHostID')) {
497: $checkexempt = 1;
498: }
499: unless ($checkexempt) {
500: ($is_balancer,$otherserver) =
501: &Apache::lonnet::check_loadbalancing($env{'user.name'},
502: $env{'user.domain'});
503: }
504: if ($is_balancer) {
505: $r->set_handlers('PerlResponseHandler'=>
506: [\&Apache::switchserver::handler]);
507: if ($otherserver ne '') {
508: $env{'form.otherserver'} = $otherserver;
509: }
510: }
511:
512: # ---------------------------------------------------------------- Check access
513: my $now = time;
514: if ($requrl !~ m{^/(?:adm|public|prtspool)/}
515: || $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) {
516: my $access=&Apache::lonnet::allowed('bre',$requrl);
517: if ($access eq '1') {
518: $env{'user.error.msg'}="$requrl:bre:0:0:Choose Course";
519: return HTTP_NOT_ACCEPTABLE;
520: }
521: if ($access eq 'A') {
522: &Apache::restrictedaccess::setup_handler($r);
523: return OK;
524: }
525: if ($access eq 'B') {
526: &Apache::blockedaccess::setup_handler($r);
527: return OK;
528: }
529: if (($access ne '2') && ($access ne 'F')) {
530: if ($requrl =~ m{^/res/}) {
531: $access = &Apache::lonnet::allowed('bro',$requrl);
532: if ($access ne 'F') {
533: if ($requrl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
534: $access = &Apache::lonnet::allowed('bre','/res/lib/templates/simpleproblem.problem');
535: if ($access ne 'F') {
536: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
537: return HTTP_NOT_ACCEPTABLE;
538: }
539: } else {
540: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
541: return HTTP_NOT_ACCEPTABLE;
542: }
543: }
544: } else {
545: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
546: return HTTP_NOT_ACCEPTABLE;
547: }
548: }
549: }
550: if ($requrl =~ m|^/prtspool/|) {
551: my $start='/prtspool/'.$env{'user.name'}.'_'.
552: $env{'user.domain'};
553: if ($requrl !~ /^\Q$start\E/) {
554: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
555: return HTTP_NOT_ACCEPTABLE;
556: }
557: }
558: if ($requrl =~ m|^/zipspool/|) {
559: my $start='/zipspool/zipout/'.$env{'user.name'}.":".
560: $env{'user.domain'};
561: if ($requrl !~ /^\Q$start\E/) {
562: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
563: return HTTP_NOT_ACCEPTABLE;
564: }
565: }
566: if ($env{'user.name'} eq 'public' &&
567: $env{'user.domain'} eq 'public' &&
568: $requrl !~ m{^/+(res|public|uploaded)/} &&
569: $requrl !~ m{^/adm/[^/]+/[^/]+/aboutme/portfolio$ }x &&
570: $requrl !~ m{^/adm/blockingstatus/.*$} &&
571: $requrl !~ m{^/+adm/(help|logout|restrictedaccess|randomlabel\.png)}) {
572: $env{'request.querystring'}=$r->args;
573: $env{'request.firsturl'}=$requrl;
574: return FORBIDDEN;
575: }
576: # ------------------------------------------------------------- This is allowed
577: if ($env{'request.course.id'}) {
578: &Apache::lonnet::countacc($requrl);
579: $requrl=~/\.(\w+)$/;
580: my $query=$r->args;
581: if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
582: ($requrl=~/^\/adm\/.*\/(aboutme|smppg|bulletinboard)(\?|$ )/x) ||
583: ($requrl=~/^\/adm\/wrapper\//) ||
584: ($requrl=~m|^/adm/coursedocs/showdoc/|) ||
585: ($requrl=~m|\.problem/smpedit$|) ||
586: ($requrl=~/^\/public\/.*\/syllabus$/) ||
587: ($requrl=~/^\/adm\/(viewclasslist|navmaps)$/) ||
588: ($requrl=~/^\/adm\/.*\/aboutme\/portfolio(\?|$)/)) {
589: # ------------------------------------- This is serious stuff, get symb and log
590: my $symb;
591: if ($query) {
592: &Apache::loncommon::get_unprocessed_cgi($query,['symb','folderpath']);
593: }
594: if ($env{'form.symb'}) {
595: $symb=&Apache::lonnet::symbclean($env{'form.symb'});
596: if ($requrl =~ m|^/adm/wrapper/|
597: || $requrl =~ m|^/adm/coursedocs/showdoc/|) {
598: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
599: &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
600: 'last_known' =>[$murl,$mid]);
601: } elsif ((&Apache::lonnet::symbverify($symb,$requrl)) ||
602: (($requrl=~m|(.*)/smpedit$|) &&
603: &Apache::lonnet::symbverify($symb,$1)) ||
604: (($requrl=~m|(.*/aboutme)/portfolio$|) &&
605: &Apache::lonnet::symbverify($symb,$1))) {
606: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
607: &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
608: 'last_known' =>[$murl,$mid]);
609: } else {
610: $r->log_reason('Invalid symb for '.$requrl.': '.
611: $symb);
612: $env{'user.error.msg'}=
613: "$requrl:bre:1:1:Invalid Access";
614: return HTTP_NOT_ACCEPTABLE;
615: }
616: } else {
617: if ($requrl=~m{^(/adm/.*/aboutme)/portfolio$}) {
618: $requrl = $1;
619: }
620: unless ($suppext) {
621: $symb=&Apache::lonnet::symbread($requrl);
622: if (&Apache::lonnet::is_on_map($requrl) && $symb &&
623: !&Apache::lonnet::symbverify($symb,$requrl)) {
624: $r->log_reason('Invalid symb for '.$requrl.': '.$symb);
625: $env{'user.error.msg'}=
626: "$requrl:bre:1:1:Invalid Access";
627: return HTTP_NOT_ACCEPTABLE;
628: }
629: if ($symb) {
630: my ($map,$mid,$murl)=
631: &Apache::lonnet::decode_symb($symb);
632: &Apache::lonnet::symblist($map,$murl =>[$murl,$mid],
633: 'last_known' =>[$murl,$mid]);
634: }
635: }
636: }
637: $env{'request.symb'}=$symb;
638: &Apache::lonnet::courseacclog($symb);
639: } else {
640: # ------------------------------------------------------- This is other content
641: &Apache::lonnet::courseacclog($requrl);
642: }
643: if ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/.+\.html?$}) {
644: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
645: if ($query) {
646: &Apache::loncommon::get_unprocessed_cgi($query,['forceedit']);
647: if ($env{'form.forceedit'}) {
648: $env{'request.state'} = 'edit';
649: }
650: }
651: }
652: } elsif ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/portfolio/syllabus/.+\.html?$}) {
653: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
654: if ($query) {
655: &Apache::loncommon::get_unprocessed_cgi($query,['forceedit','editmode']);
656: if (($env{'form.forceedit'}) || ($env{'form.editmode'})) {
657: $env{'request.state'} = 'edit';
658: }
659: }
660: }
661: }
662: }
663: return OK;
664: } else {
665: my $defdom=$r->dir_config('lonDefDomain');
666: ($is_balancer,$otherserver) =
667: &Apache::lonnet::check_loadbalancing(undef,$defdom);
668: if ($is_balancer) {
669: $r->set_handlers('PerlResponseHandler'=>
670: [\&Apache::switchserver::handler]);
671: if ($otherserver ne '') {
672: $env{'form.otherserver'} = $otherserver;
673: }
674: }
675: }
676: # -------------------------------------------- See if this is a public resource
677: if ($requrl=~m|^/+adm/+help/+|) {
678: return OK;
679: }
680: # ------------------------------------ See if this is a viewable portfolio file
681: if (&Apache::lonnet::is_portfolio_url($requrl)) {
682: my $access=&Apache::lonnet::allowed('bre',$requrl);
683: if ($access eq 'A') {
684: &Apache::restrictedaccess::setup_handler($r);
685: return OK;
686: }
687: if (($access ne '2') && ($access ne 'F')) {
688: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
689: return HTTP_NOT_ACCEPTABLE;
690: }
691: }
692:
693: # -------------------------------------------------------------- Not authorized
694: $requrl=~/\.(\w+)$/;
695: # if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
696: # ($requrl=~/^\/adm\/(roles|logout|email|menu|remote)/) ||
697: # ($requrl=~m|^/prtspool/|)) {
698: # -------------------------- Store where they wanted to go and get login screen
699: $env{'request.querystring'}=$r->args;
700: $env{'request.firsturl'}=$requrl;
701: return FORBIDDEN;
702: # } else {
703: # --------------------------------------------------------------------- Goodbye
704: # return HTTP_BAD_REQUEST;
705: # }
706: }
707:
708: 1;
709: __END__
710:
711: =pod
712:
713: =back
714:
715: =cut
716:
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