File:
[LON-CAPA] /
loncom /
auth /
lonacc.pm
Revision
1.156:
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Sat May 17 21:43:55 2014 UTC (10 years ago) by
raeburn
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MAIN
CVS tags:
version_2_11_0_RC3,
HEAD
- For public user (e.g., unauthenticated user viewing syllabus etc.)
set $r->user() to public:public, just in case there a username of
"public" is a real institutional username (and SSO is in use).
- Prevent public user being identified as SSO-authenticated user without
LON-CAPA username.
1: # The LearningOnline Network
2: # Cookie Based Access Handler
3: #
4: # $Id: lonacc.pm,v 1.156 2014/05/17 21:43:55 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: } elsif ($fname =~ /\.(xls|doc|ppt)x$/i) {
164: $value=~s/[\r\n]$//;
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: $r->headers_in->unset('Content-length');
229: }
230:
231: =pod
232:
233: =over
234:
235: =item upload_size_allowed()
236:
237: Perform size checks for file uploads to essayresponse items in course context.
238:
239: Add form.HWFILESIZE.$part_$id to %env with file size (MB)
240: If file exceeds maximum allowed size, add form.HWFILETOOBIG.$part_$id to %env.
241:
242: =cut
243:
244: sub upload_size_allowed {
245: my ($name,$size,$fname) = @_;
246: if ($name =~ /^HWFILE(\w+)$/) {
247: my $ident = $1;
248: my $item = 'HWFILESIZE'.$ident;
249: my $savesize = sprintf("%.6f",$size);
250: &Apache::loncommon::add_to_env("form.$item",$savesize);
251: my $maxsize= &Apache::lonnet::EXT("resource.$ident.maxfilesize");
252: if (!$maxsize) {
253: $maxsize = 10.0; # FIXME This should become a domain configuration.
254: }
255: if ($size > $maxsize) {
256: my $warn = 'HWFILETOOBIG'.$ident;
257: &Apache::loncommon::add_to_env("form.$warn",$fname);
258: return;
259: }
260: }
261: return 'ok';
262: }
263:
264: =pod
265:
266: =item sso_login()
267:
268: handle the case of the single sign on user, at this point $r->user
269: will be set and valid; now need to find the loncapa user info, and possibly
270: balance them. If $r->user() is set this means either it was either set by
271: SSO or by checkauthen.pm, if a valid cookie was found. The latter case can
272: be identified by the third arg ($usename), except when lonacc is called in
273: an internal redirect to /adm/switchserver (e.g., load-balancing following
274: successful authentication) -- no cookie set yet. For that particular case
275: simply skip the call to sso_login().
276:
277: returns OK if it was SSO and user was handled.
278: returns undef if not SSO or no means to handle the user.
279:
280: =cut
281:
282: sub sso_login {
283: my ($r,$handle,$username) = @_;
284:
285: my $lonidsdir=$r->dir_config('lonIDsDir');
286: if (($r->user eq '') || ($username ne '') || ($r->user eq 'public:public') ||
287: (defined($env{'user.name'}) && (defined($env{'user.domain'}))
288: && ($handle ne ''))) {
289: # not an SSO case or already logged in
290: return undef;
291: }
292:
293: my ($user) = ($r->user =~ m/([a-zA-Z0-9_\-@.]*)/);
294:
295: my $query = $r->args;
296: my %form;
297: if ($query) {
298: my @items = ('role','symb','iptoken');
299: &Apache::loncommon::get_unprocessed_cgi($query,\@items);
300: foreach my $item (@items) {
301: if (defined($env{'form.'.$item})) {
302: $form{$item} = $env{'form.'.$item};
303: }
304: }
305: }
306:
307: my %sessiondata;
308: if ($form{'iptoken'}) {
309: %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
310: my $delete = &Apache::lonnet::tmpdel($form{'token'});
311: }
312:
313: my $domain = $r->dir_config('lonSSOUserDomain');
314: if ($domain eq '') {
315: $domain = $r->dir_config('lonDefDomain');
316: }
317: my $home=&Apache::lonnet::homeserver($user,$domain);
318: if ($home !~ /(con_lost|no_host|no_such_host)/) {
319: &Apache::lonnet::logthis(" SSO authorized user $user ");
320: my ($is_balancer,$otherserver,$hosthere);
321: if ($form{'iptoken'}) {
322: if (($sessiondata{'domain'} eq $form{'udom'}) &&
323: ($sessiondata{'username'} eq $form{'uname'})) {
324: $hosthere = 1;
325: }
326: }
327: unless ($hosthere) {
328: ($is_balancer,$otherserver) =
329: &Apache::lonnet::check_loadbalancing($user,$domain);
330: }
331:
332: if ($is_balancer) {
333: # login but immediately go to switch server to find us a new
334: # machine
335: &Apache::lonauth::success($r,$user,$domain,$home,'noredirect');
336: $env{'request.sso.login'} = 1;
337: if (defined($r->dir_config("lonSSOReloginServer"))) {
338: $env{'request.sso.reloginserver'} =
339: $r->dir_config('lonSSOReloginServer');
340: }
341: my $redirecturl = '/adm/switchserver';
342: if ($otherserver ne '') {
343: $redirecturl .= '?otherserver='.$otherserver;
344: }
345: $r->internal_redirect($redirecturl);
346: $r->set_handlers('PerlHandler'=> undef);
347: } else {
348: # need to login them in, so generate the need data that
349: # migrate expects to do login
350: my $ip;
351: my $c = $r->connection;
352: eval {
353: $ip = $c->remote_ip();
354: };
355: if ($@) {
356: $ip = $c->client_ip();
357: }
358: my %info=('ip' => $ip,
359: 'domain' => $domain,
360: 'username' => $user,
361: 'server' => $r->dir_config('lonHostID'),
362: 'sso.login' => 1
363: );
364: foreach my $item ('role','symb') {
365: if (exists($form{$item})) {
366: $info{$item} = $form{$item};
367: }
368: }
369: unless ($info{'symb'}) {
370: unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) {
371: $info{'origurl'} = $r->uri;
372: }
373: }
374: if ($r->dir_config("ssodirecturl") == 1) {
375: $info{'origurl'} = $r->uri;
376: }
377: if (defined($r->dir_config("lonSSOReloginServer"))) {
378: $info{'sso.reloginserver'} =
379: $r->dir_config('lonSSOReloginServer');
380: }
381: my $token =
382: &Apache::lonnet::tmpput(\%info,
383: $r->dir_config('lonHostID'));
384: $env{'form.token'} = $token;
385: $r->internal_redirect('/adm/migrateuser');
386: $r->set_handlers('PerlHandler'=> undef);
387: }
388: return OK;
389: } else {
390: &Apache::lonnet::logthis(" SSO authorized unknown user $user ");
391: my @cancreate;
392: my %domconfig =
393: &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
394: if (ref($domconfig{'usercreation'}) eq 'HASH') {
395: if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
396: if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
397: @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}};
398: } elsif (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') &&
399: ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) {
400: @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'});
401: }
402: }
403: }
404: if ((grep(/^sso$/,@cancreate)) || (defined($r->dir_config('lonSSOUserUnknownRedirect')))) {
405: $r->subprocess_env->set('SSOUserUnknown' => $user);
406: $r->subprocess_env->set('SSOUserDomain' => $domain);
407: if (grep(/^sso$/,@cancreate)) {
408: $r->set_handlers('PerlHandler'=> [\&Apache::createaccount::handler]);
409: $r->handler('perl-script');
410: } else {
411: $r->internal_redirect($r->dir_config('lonSSOUserUnknownRedirect'));
412: $r->set_handlers('PerlHandler'=> undef);
413: }
414: return OK;
415: }
416: }
417: return undef;
418: }
419:
420: sub handler {
421: my $r = shift;
422: my $requrl=$r->uri;
423:
424: if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) {
425: return OK;
426: }
427:
428: if (&Apache::lonnet::is_domainimage($requrl)) {
429: return OK;
430: }
431:
432: my %user;
433: my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user);
434:
435: unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) {
436: my $result = &sso_login($r,$handle,$user{'name'});
437: if (defined($result)) {
438: return $result;
439: }
440: }
441:
442: my ($is_balancer,$otherserver);
443:
444: if ($handle eq '') {
445: unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) {
446: $r->log_reason("Cookie not valid", $r->filename);
447: }
448: } elsif ($handle ne '') {
449:
450: # ------------------------------------------------------ Initialize Environment
451: my $lonidsdir=$r->dir_config('lonIDsDir');
452: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
453:
454: # --------------------------------------------------------- Initialize Language
455:
456: &Apache::lonlocal::get_language_handle($r);
457:
458: }
459:
460: # -------------------------------------------------- Should be a valid user now
461: if ($env{'user.name'} ne '' && $env{'user.domain'} ne '') {
462: # -------------------------------------------------------------- Resource State
463:
464: my ($cdom,$cnum);
465: if ($env{'request.course.id'}) {
466: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
467: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
468: }
469: if ($requrl=~/^\/+(res|uploaded)\//) {
470: $env{'request.state'} = "published";
471: } else {
472: $env{'request.state'} = 'unknown';
473: }
474: $env{'request.filename'} = $r->filename;
475: $env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl);
476: my $suppext;
477: if ($requrl =~ m{^/adm/wrapper/ext/}) {
478: my $query = $r->args;
479: if ($query) {
480: my $preserved;
481: foreach my $pair (split(/&/,$query)) {
482: my ($name, $value) = split(/=/,$pair);
483: unless ($name eq 'symb') {
484: $preserved .= $pair.'&';
485: }
486: if (($env{'request.course.id'}) && ($name eq 'folderpath')) {
487: if ($value =~ /^supplemental/) {
488: $suppext = 1;
489: }
490: }
491: }
492: $preserved =~ s/\&$//;
493: if ($preserved) {
494: $env{'request.external.querystring'} = $preserved;
495: }
496: }
497: } elsif ($env{'request.course.id'} &&
498: (($requrl =~ m{^/adm/$match_domain/$match_username/aboutme$}) ||
499: ($requrl =~ m{^/public/$cdom/$cnum/syllabus$}))) {
500: my $query = $r->args;
501: if ($query) {
502: foreach my $pair (split(/&/,$query)) {
503: my ($name, $value) = split(/=/,$pair);
504: if ($name eq 'folderpath') {
505: if ($value =~ /^supplemental/) {
506: $suppext = 1;
507: }
508: }
509: }
510: }
511: }
512: # -------------------------------------------------------- Load POST parameters
513:
514: &Apache::lonacc::get_posted_cgi($r);
515:
516: # ------------------------------------------------------ Check if load balancer
517:
518: my $checkexempt;
519: if ($env{'user.loadbalexempt'} eq $r->dir_config('lonHostID')) {
520: if ($env{'user.loadbalcheck.time'} + 600 > time) {
521: $checkexempt = 1;
522: }
523: }
524: if ($env{'user.noloadbalance'} eq $r->dir_config('lonHostID')) {
525: $checkexempt = 1;
526: }
527: unless ($checkexempt) {
528: ($is_balancer,$otherserver) =
529: &Apache::lonnet::check_loadbalancing($env{'user.name'},
530: $env{'user.domain'});
531: }
532: if ($is_balancer) {
533: $r->set_handlers('PerlResponseHandler'=>
534: [\&Apache::switchserver::handler]);
535: if ($otherserver ne '') {
536: $env{'form.otherserver'} = $otherserver;
537: }
538: unless (($env{'form.origurl'}) || ($r->uri eq '/adm/roles') ||
539: ($r->uri eq '/adm/switchserver') || ($r->uri eq '/adm/sso')) {
540: $env{'form.origurl'} = $r->uri;
541: }
542: }
543:
544: # ---------------------------------------------------------------- Check access
545: my $now = time;
546: if ($requrl !~ m{^/(?:adm|public|prtspool)/}
547: || $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) {
548: my $access=&Apache::lonnet::allowed('bre',$requrl);
549: if ($access eq '1') {
550: $env{'user.error.msg'}="$requrl:bre:0:0:Choose Course";
551: return HTTP_NOT_ACCEPTABLE;
552: }
553: if ($access eq 'A') {
554: &Apache::restrictedaccess::setup_handler($r);
555: return OK;
556: }
557: if ($access eq 'B') {
558: &Apache::blockedaccess::setup_handler($r);
559: return OK;
560: }
561: if (($access ne '2') && ($access ne 'F')) {
562: if ($requrl =~ m{^/res/}) {
563: $access = &Apache::lonnet::allowed('bro',$requrl);
564: if ($access ne 'F') {
565: if ($requrl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
566: $access = &Apache::lonnet::allowed('bre','/res/lib/templates/simpleproblem.problem');
567: if ($access ne 'F') {
568: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
569: return HTTP_NOT_ACCEPTABLE;
570: }
571: } else {
572: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
573: return HTTP_NOT_ACCEPTABLE;
574: }
575: }
576: } else {
577: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
578: return HTTP_NOT_ACCEPTABLE;
579: }
580: }
581: }
582: if ($requrl =~ m|^/prtspool/|) {
583: my $start='/prtspool/'.$env{'user.name'}.'_'.
584: $env{'user.domain'};
585: if ($requrl !~ /^\Q$start\E/) {
586: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
587: return HTTP_NOT_ACCEPTABLE;
588: }
589: }
590: if ($requrl =~ m|^/zipspool/|) {
591: my $start='/zipspool/zipout/'.$env{'user.name'}.":".
592: $env{'user.domain'};
593: if ($requrl !~ /^\Q$start\E/) {
594: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
595: return HTTP_NOT_ACCEPTABLE;
596: }
597: }
598: if ($env{'user.name'} eq 'public' &&
599: $env{'user.domain'} eq 'public' &&
600: $requrl !~ m{^/+(res|public|uploaded)/} &&
601: $requrl !~ m{^/adm/[^/]+/[^/]+/aboutme/portfolio$ }x &&
602: $requrl !~ m{^/adm/blockingstatus/.*$} &&
603: $requrl !~ m{^/+adm/(help|logout|restrictedaccess|randomlabel\.png)}) {
604: $env{'request.querystring'}=$r->args;
605: $env{'request.firsturl'}=$requrl;
606: return FORBIDDEN;
607: }
608: # ------------------------------------------------------------- This is allowed
609: if ($env{'request.course.id'}) {
610: &Apache::lonnet::countacc($requrl);
611: $requrl=~/\.(\w+)$/;
612: my $query=$r->args;
613: if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
614: ($requrl=~/^\/adm\/.*\/(aboutme|smppg|bulletinboard)(\?|$ )/x) ||
615: ($requrl=~/^\/adm\/wrapper\//) ||
616: ($requrl=~m|^/adm/coursedocs/showdoc/|) ||
617: ($requrl=~m|\.problem/smpedit$|) ||
618: ($requrl=~/^\/public\/.*\/syllabus$/) ||
619: ($requrl=~/^\/adm\/(viewclasslist|navmaps)$/) ||
620: ($requrl=~/^\/adm\/.*\/aboutme\/portfolio(\?|$)/)) {
621: # ------------------------------------- This is serious stuff, get symb and log
622: my $symb;
623: if ($query) {
624: &Apache::loncommon::get_unprocessed_cgi($query,['symb','folderpath']);
625: }
626: if ($env{'form.symb'}) {
627: $symb=&Apache::lonnet::symbclean($env{'form.symb'});
628: if ($requrl =~ m|^/adm/wrapper/|
629: || $requrl =~ m|^/adm/coursedocs/showdoc/|) {
630: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
631: &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
632: 'last_known' =>[$murl,$mid]);
633: } elsif ((&Apache::lonnet::symbverify($symb,$requrl)) ||
634: (($requrl=~m|(.*)/smpedit$|) &&
635: &Apache::lonnet::symbverify($symb,$1)) ||
636: (($requrl=~m|(.*/aboutme)/portfolio$|) &&
637: &Apache::lonnet::symbverify($symb,$1))) {
638: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
639: &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
640: 'last_known' =>[$murl,$mid]);
641: } else {
642: $r->log_reason('Invalid symb for '.$requrl.': '.
643: $symb);
644: $env{'user.error.msg'}=
645: "$requrl:bre:1:1:Invalid Access";
646: return HTTP_NOT_ACCEPTABLE;
647: }
648: } else {
649: if ($requrl=~m{^(/adm/.*/aboutme)/portfolio$}) {
650: $requrl = $1;
651: }
652: unless ($suppext) {
653: $symb=&Apache::lonnet::symbread($requrl);
654: if (&Apache::lonnet::is_on_map($requrl) && $symb &&
655: !&Apache::lonnet::symbverify($symb,$requrl)) {
656: $r->log_reason('Invalid symb for '.$requrl.': '.$symb);
657: $env{'user.error.msg'}=
658: "$requrl:bre:1:1:Invalid Access";
659: return HTTP_NOT_ACCEPTABLE;
660: }
661: if ($symb) {
662: my ($map,$mid,$murl)=
663: &Apache::lonnet::decode_symb($symb);
664: &Apache::lonnet::symblist($map,$murl =>[$murl,$mid],
665: 'last_known' =>[$murl,$mid]);
666: }
667: }
668: }
669: $env{'request.symb'}=$symb;
670: &Apache::lonnet::courseacclog($symb);
671: } else {
672: # ------------------------------------------------------- This is other content
673: &Apache::lonnet::courseacclog($requrl);
674: }
675: if ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/.+\.html?$}) {
676: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
677: if ($query) {
678: &Apache::loncommon::get_unprocessed_cgi($query,['forceedit']);
679: if ($env{'form.forceedit'}) {
680: $env{'request.state'} = 'edit';
681: }
682: }
683: }
684: } elsif ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/portfolio/syllabus/.+\.html?$}) {
685: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
686: if ($query) {
687: &Apache::loncommon::get_unprocessed_cgi($query,['forceedit','editmode']);
688: if (($env{'form.forceedit'}) || ($env{'form.editmode'})) {
689: $env{'request.state'} = 'edit';
690: }
691: }
692: }
693: }
694: }
695: return OK;
696: } else {
697: my $defdom=$r->dir_config('lonDefDomain');
698: ($is_balancer,$otherserver) =
699: &Apache::lonnet::check_loadbalancing(undef,$defdom);
700: if ($is_balancer) {
701: $r->set_handlers('PerlResponseHandler'=>
702: [\&Apache::switchserver::handler]);
703: if ($otherserver ne '') {
704: $env{'form.otherserver'} = $otherserver;
705: }
706: }
707: }
708: # -------------------------------------------- See if this is a public resource
709: if ($requrl=~m|^/+adm/+help/+|) {
710: return OK;
711: }
712: # ------------------------------------ See if this is a viewable portfolio file
713: if (&Apache::lonnet::is_portfolio_url($requrl)) {
714: my $access=&Apache::lonnet::allowed('bre',$requrl);
715: if ($access eq 'A') {
716: &Apache::restrictedaccess::setup_handler($r);
717: return OK;
718: }
719: if (($access ne '2') && ($access ne 'F')) {
720: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
721: return HTTP_NOT_ACCEPTABLE;
722: }
723: }
724:
725: # -------------------------------------------------------------- Not authorized
726: $requrl=~/\.(\w+)$/;
727: # if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
728: # ($requrl=~/^\/adm\/(roles|logout|email|menu|remote)/) ||
729: # ($requrl=~m|^/prtspool/|)) {
730: # -------------------------- Store where they wanted to go and get login screen
731: $env{'request.querystring'}=$r->args;
732: $env{'request.firsturl'}=$requrl;
733: return FORBIDDEN;
734: # } else {
735: # --------------------------------------------------------------------- Goodbye
736: # return HTTP_BAD_REQUEST;
737: # }
738: }
739:
740: 1;
741: __END__
742:
743: =pod
744:
745: =back
746:
747: =cut
748:
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