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[LON-CAPA] /
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lonacc.pm
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Wed Aug 24 20:58:50 2022 UTC (20 months, 3 weeks ago) by
raeburn
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- Dual SSO and non-SSO login from /adm/login
- Display of domain configuration for each server split into two tables
so input textboxes can be longer.
- "Pop-up if iframe" (Y/N) item added. If Y, when login page is in an
iframe, SSO log-in dialog will be displayed in a new window, i.e.,
not within the iframe, e.g., to satisfy sameorigin requirement in
x-frame-options in header sent by SSO server.
1: # The LearningOnline Network
2: # Cookie Based Access Handler
3: #
4: # $Id: lonacc.pm,v 1.206 2022/08/24 20:58:50 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 Apache::lonprotected();
106: use Fcntl qw(:flock);
107: use LONCAPA qw(:DEFAULT :match);
108:
109: sub cleanup {
110: my ($r)=@_;
111: if (! $r->is_initial_req()) { return DECLINED; }
112: &Apache::lonnet::save_cache();
113: return OK;
114: }
115:
116: sub goodbye {
117: my ($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 ($fname =~ /\.(xls|doc|ppt)(x|m)$/i) {
165: $value=~s/[\r\n]$//;
166: }
167: if (ref($fields) eq 'ARRAY') {
168: next if (!grep(/^\Q$name\E$/,@{$fields}));
169: }
170: if ($fname) {
171: if ($env{'form.symb'} ne '') {
172: my $size = (length($value))/(1024.0 * 1024.0);
173: if (&upload_size_allowed($name,$size,$fname) eq 'ok') {
174: $env{"form.$name.filename"}=$fname;
175: $env{"form.$name.mimetype"}=$fmime;
176: &Apache::loncommon::add_to_env("form.$name",$value);
177: }
178: } else {
179: $env{"form.$name.filename"}=$fname;
180: $env{"form.$name.mimetype"}=$fmime;
181: &Apache::loncommon::add_to_env("form.$name",$value);
182: }
183: } else {
184: $value=~s/\s+$//s;
185: &Apache::loncommon::add_to_env("form.$name",$value);
186: }
187: }
188: if ($i<$#lines) {
189: $i++;
190: $lines[$i]=~
191: /Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i;
192: $name=$1;
193: $value='';
194: if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) {
195: $fname=$1;
196: if
197: ($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) {
198: $fmime=$1;
199: $i++;
200: } else {
201: $fmime='';
202: }
203: } else {
204: $fname='';
205: $fmime='';
206: }
207: if ($i<$#lines && $lines[$i+1]=~/^Content\-Type\:\s*([\w\-\/]+)/i) {
208: # TODO: something with $1 !
209: $i++;
210: }
211: if ($i<$#lines && $lines[$i+1]=~/^Content\-transfer\-encoding\:\s*([\w\-\/]+)/i) {
212: # TODO: something with $1 !
213: $i++;
214: }
215: $i++;
216: }
217: } else {
218: $value.=$lines[$i]."\n";
219: }
220: }
221: }
222: #
223: # Digested POSTed values
224: #
225: # Remember the way this was originally done (GET or POST)
226: #
227: $env{'request.method'}=$ENV{'REQUEST_METHOD'};
228: #
229: # There may also be stuff in the query string
230: # Tell subsequent handlers that this was GET, not POST, so they can access query string.
231: # Also, unset POSTed content length to cover all tracks.
232: #
233:
234: $r->method_number(M_GET);
235:
236: $r->method('GET');
237: $r->headers_in->unset('Content-length');
238: }
239:
240: =pod
241:
242: =over
243:
244: =item upload_size_allowed()
245:
246: Perform size checks for file uploads to essayresponse items in course context.
247:
248: Add form.HWFILESIZE.$part_$id to %env with file size (MB)
249: If file exceeds maximum allowed size, add form.HWFILETOOBIG.$part_$id to %env.
250:
251: =cut
252:
253: sub upload_size_allowed {
254: my ($name,$size,$fname) = @_;
255: if ($name =~ /^HWFILE(\w+)$/) {
256: my $ident = $1;
257: my $item = 'HWFILESIZE'.$ident;
258: my $savesize = sprintf("%.6f",$size);
259: &Apache::loncommon::add_to_env("form.$item",$savesize);
260: my $maxsize= &Apache::lonnet::EXT("resource.$ident.maxfilesize");
261: if (!$maxsize) {
262: $maxsize = 10.0; # FIXME This should become a domain configuration.
263: }
264: if ($size > $maxsize) {
265: my $warn = 'HWFILETOOBIG'.$ident;
266: &Apache::loncommon::add_to_env("form.$warn",$fname);
267: return;
268: }
269: }
270: return 'ok';
271: }
272:
273: =pod
274:
275: =item sso_login()
276:
277: handle the case of the single sign on user, at this point $r->user
278: will be set and valid; now need to find the loncapa user info, and possibly
279: balance them. If $r->user() is set this means either it was either set by
280: SSO or by checkauthen.pm, if a valid cookie was found. The latter case can
281: be identified by the third arg ($usename), except when lonacc is called in
282: an internal redirect to /adm/switchserver (e.g., load-balancing following
283: successful authentication) -- no cookie set yet. For that particular case
284: simply skip the call to sso_login().
285:
286: returns OK if it was SSO and user was handled.
287: returns undef if not SSO or no means to handle the user.
288:
289: In the case where the session was started from /adm/launch/tiny/$domain/$id,
290: i.e., for a protected link, with launch from another CMS, and user information
291: is accepted from the LTI payload, then, if the user has privileged roles,
292: authentication will be required. If SSO authentication is with a username
293: and/or domain that differ from the username in the LTI payload and domain
294: in the launch URL, then $r->user() will be unset and /adm/relaunch will be
295: called.
296:
297: =cut
298:
299: sub sso_login {
300: my ($r,$handle,$username) = @_;
301:
302: if (($r->user eq '') || ($username ne '') || ($r->user eq 'public:public') ||
303: (defined($env{'user.name'}) && (defined($env{'user.domain'}))
304: && ($handle ne ''))) {
305: # not an SSO case or already logged in
306: return undef;
307: }
308:
309: my ($user) = ($r->user =~ m/^($match_username)$/);
310: if ($user eq '') {
311: return undef;
312: }
313:
314: my $query = $r->args;
315: my %form;
316: if ($query) {
317: my @items = ('role','symb','iptoken','origurl','ttoken',
318: 'ltoken','linkkey','logtoken','sso','lcssowin');
319: &Apache::loncommon::get_unprocessed_cgi($query,\@items);
320: foreach my $item (@items) {
321: if (defined($env{'form.'.$item})) {
322: $form{$item} = $env{'form.'.$item};
323: }
324: }
325: }
326:
327: my %sessiondata;
328: if ($form{'iptoken'}) {
329: %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
330: my $delete = &Apache::lonnet::tmpdel($form{'iptoken'});
331: unless ($sessiondata{'sessionserver'}) {
332: delete($form{'iptoken'});
333: }
334: }
335:
336: my ($linkprot,$linkprotuser,$linkprotexit,$linkkey,$deeplinkurl);
337:
338: #
339: # If Shibboleth auth is in use, and a dual SSO and non-SSO login page
340: # is in use, then the query string will contain the logtoken item with
341: # a value set to the name of a .tmp file in /home/httpd/perl/tmp
342: # containing the url to display after authentication, and also,
343: # optionally, role and symb, or linkprot or linkkey (deep-link access).
344: #
345: # If Shibboleth auth is in use, but a dual log-in page is not in use,
346: # and the originally requested URL was /tiny/$domain/$id (i.e.,
347: # for deeplinking), then the query string will contain the sso item
348: # with a value set to the name of a .tmp file in /home/httpd/perl/tmp
349: # containing the url to display after authentication, and also,
350: # optionally, linkprot or linkkey (deep-link access).
351: #
352: # Otherwise the query string may contain role and symb, or if the
353: # originally requested URL was /tiny/$domain/$id (i.e. for deeplinking)
354: # then the query string may contain a ttoken item with a value set
355: # to the name of a .tmp file in /home/httpd/perl/tmp containing either
356: # linkprot or linkkey (deep-link access).
357: #
358: # If deep-linked, i.e., the originally requested URL was /tiny/$domain/$id
359: # the linkkey may have originally been sent in POSTed data, which will
360: # have been processed in lontrans.pm
361: #
362:
363: if ($form{'ttoken'}) {
364: my %info = &Apache::lonnet::tmpget($form{'ttoken'});
365: &Apache::lonnet::tmpdel($form{'ttoken'});
366: if ($info{'origurl'}) {
367: $form{'origurl'} = $info{'origurl'};
368: if ($form{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) {
369: $deeplinkurl = $form{'origurl'};
370: }
371: }
372: if ($info{'linkprot'}) {
373: $linkprot = $info{'linkprot'};
374: $linkprotuser = $info{'linkprotuser'};
375: $linkprotexit = $info{'linkprotexit'};
376: } elsif ($info{'linkkey'} ne '') {
377: $linkkey = $info{'linkkey'};
378: }
379: } elsif ($form{'logtoken'}) {
380: my ($firsturl,@rest);
381: my $lonhost = $r->dir_config('lonHostID');
382: my $tmpinfo = &Apache::lonnet::reply('tmpget:'.$form{'logtoken'},$lonhost);
383: my $delete = &Apache::lonnet::tmpdel($form{'logtoken'});
384: unless (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost') ||
385: ($tmpinfo eq 'no_such_host')) {
386: (undef,$firsturl,@rest) = split(/&/,$tmpinfo);
387: if ($firsturl ne '') {
388: $firsturl = &unescape($firsturl);
389: }
390: foreach my $item (@rest) {
391: my ($key,$value) = split(/=/,$item);
392: $form{$key} = &unescape($value);
393: }
394: if ($firsturl =~ m{^/tiny/$match_domain/\w+$}) {
395: $form{'origurl'} = $firsturl;
396: $deeplinkurl = $firsturl;
397: }
398: if ($form{'linkprot'}) {
399: $linkprot = $form{'linkprot'};
400: $linkprotuser = $form{'linkprotuser'};
401: $linkprotexit = $form{'linkprotexit'};
402: } elsif ($form{'linkkey'} ne '') {
403: $linkkey = $form{'linkkey'};
404: }
405: if ($form{'iptoken'}) {
406: %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
407: my $delete = &Apache::lonnet::tmpdel($form{'iptoken'});
408: }
409: }
410: } elsif ($form{'sso'}) {
411: my $lonhost = $r->dir_config('lonHostID');
412: my $info = &Apache::lonnet::reply('tmpget:'.$form{'sso'},$lonhost);
413: &Apache::lonnet::tmpdel($form{'sso'});
414: unless (($info=~/^error/) || ($info eq 'con_lost') ||
415: ($info eq 'no_such_host')) {
416: my ($firsturl,@rest)=split(/\&/,$info);
417: if ($firsturl ne '') {
418: $form{'origurl'} = &unescape($firsturl);
419: if ($form{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) {
420: $deeplinkurl = $form{'origurl'};
421: }
422: }
423: foreach my $item (@rest) {
424: my ($key,$value) = split(/=/,$item);
425: $form{$key} = &unescape($value);
426: }
427: if ($form{'linkprot'}) {
428: $linkprot = $form{'linkprot'};
429: $linkprotuser = $form{'linkprotuser'};
430: $linkprotexit = $form{'linkprotexit'};
431: } elsif ($form{'linkkey'} ne '') {
432: $linkkey = $form{'linkkey'};
433: }
434: }
435: } elsif ($form{'ltoken'}) {
436: my %link_info = &Apache::lonnet::tmpget($form{'ltoken'});
437: $linkprot = $link_info{'linkprot'};
438: if ($linkprot) {
439: if ($link_info{'linkprotuser'} ne '') {
440: $linkprotuser = $link_info{'linkprotuser'};
441: }
442: if ($link_info{'linkprotexit'} ne '') {
443: $linkprotexit = $link_info{'linkprotexit'};
444: }
445: }
446: my $delete = &Apache::lonnet::tmpdel($form{'ltoken'});
447: delete($form{'ltoken'});
448: if ($form{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) {
449: $deeplinkurl = $form{'origurl'};
450: }
451: } elsif ($form{'linkkey'} ne '') {
452: $linkkey = $form{'linkkey'};
453: }
454:
455: my $domain = $r->dir_config('lonSSOUserDomain');
456: if ($domain eq '') {
457: $domain = $r->dir_config('lonDefDomain');
458: }
459: if (($deeplinkurl) && ($linkprot) && ($linkprotuser ne '')) {
460: unless ($linkprotuser eq $user.':'.$domain) {
461: $r->user();
462: my %data = (
463: origurl => $deeplinkurl,
464: linkprot => $linkprot,
465: linkprotuser => $linkprotuser,
466: linkprotexit => $linkprotexit,
467: );
468: if ($env{'form.lcssowin'}) {
469: $data{'lcssowin'} = $env{'form.lcssowin'};
470: }
471: my $token = &Apache::lonnet::tmpput(\%data,$r->dir_config('lonHostID'),'link');
472: unless (($token eq 'con_lost') || ($token eq 'refused') || ($token =~ /^error:/) ||
473: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
474: $r->internal_redirect('/adm/relaunch?rtoken='.$token);
475: $r->set_handlers('PerlHandler'=> undef);
476: return OK;
477: }
478: }
479: }
480: my $home=&Apache::lonnet::homeserver($user,$domain);
481: if ($home !~ /(con_lost|no_host|no_such_host)/) {
482: &Apache::lonnet::logthis(" SSO authorized user $user ");
483: my ($is_balancer,$otherserver,$hosthere);
484: if ($form{'iptoken'}) {
485: if (($sessiondata{'domain'} eq $domain) &&
486: ($sessiondata{'username'} eq $user)) {
487: $hosthere = 1;
488: }
489: }
490: unless ($hosthere) {
491: ($is_balancer,$otherserver) =
492: &Apache::lonnet::check_loadbalancing($user,$domain,'login');
493: if ($is_balancer) {
494: # Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer)
495: my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r);
496: if (($found_server) && ($balancer_cookie =~ /^\Q$domain\E_\Q$user\E_/)) {
497: $otherserver = $found_server;
498: } elsif ($otherserver eq '') {
499: my $lowest_load;
500: ($otherserver,undef,undef,undef,$lowest_load) = &Apache::lonnet::choose_server($domain);
501: if ($lowest_load > 100) {
502: $otherserver = &Apache::lonnet::spareserver($r,$lowest_load,$lowest_load,1,$domain);
503: }
504: if ($otherserver ne '') {
505: my @hosts = &Apache::lonnet::current_machine_ids();
506: if (grep(/^\Q$otherserver\E$/,@hosts)) {
507: $hosthere = $otherserver;
508: }
509: }
510: }
511: }
512: }
513: if (($is_balancer) && (!$hosthere)) {
514: # login but immediately go to switch server to find us a new
515: # machine
516: &Apache::lonauth::success($r,$user,$domain,$home,'noredirect');
517: foreach my $item (keys(%form)) {
518: $env{'form.'.$item} = $form{$item};
519: }
520: unless (($form{'symb'}) || ($form{'origurl'})) {
521: unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) {
522: $env{'form.origurl'} = $r->uri;
523: }
524: }
525: if (($r->uri eq '/adm/sso') && ($form{'origurl'} =~ m{^/+tiny/+$match_domain/+\w+$})) {
526: $env{'request.deeplink.login'} = $form{'origurl'};
527: } elsif ($r->uri =~ m{^/+tiny/+$match_domain/+\w+$}) {
528: $env{'request.deeplink.login'} = $r->uri;
529: }
530: if ($env{'request.deeplink.login'}) {
531: if ($linkprot) {
532: $env{'request.linkprot'} = $linkprot;
533: if ($linkprotuser ne '') {
534: $env{'request.linkprotuser'} = $linkprotuser;
535: }
536: if ($linkprotexit ne '') {
537: $env{'request.linkprotexit'} = $linkprotexit;
538: }
539: } elsif ($linkkey ne '') {
540: $env{'request.linkkey'} = $linkkey;
541: }
542: }
543: $env{'request.sso.login'} = 1;
544: if (defined($r->dir_config("lonSSOReloginServer"))) {
545: $env{'request.sso.reloginserver'} =
546: $r->dir_config('lonSSOReloginServer');
547: }
548: my $redirecturl = '/adm/switchserver';
549: if ($otherserver ne '') {
550: $redirecturl .= '?otherserver='.$otherserver;
551: }
552: if ($form{'lcssowin'}) {
553: $redirecturl .= (($redirecturl=~/\?/)?'&':'?') . 'lcssowin=1';
554: }
555: $r->internal_redirect($redirecturl);
556: $r->set_handlers('PerlHandler'=> undef);
557: } else {
558: # need to login them in, so generate the need data that
559: # migrate expects to do login
560: my $ip = &Apache::lonnet::get_requestor_ip($r);
561: my %info=('ip' => $ip,
562: 'domain' => $domain,
563: 'username' => $user,
564: 'server' => $r->dir_config('lonHostID'),
565: 'sso.login' => 1
566: );
567: foreach my $item ('role','symb','iptoken','origurl','lcssowin') {
568: if (exists($form{$item})) {
569: $info{$item} = $form{$item};
570: } elsif ($sessiondata{$item} ne '') {
571: $info{$item} = $sessiondata{$item};
572: }
573: }
574: unless (($info{'symb'}) || ($info{'origurl'})) {
575: unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) {
576: $info{'origurl'} = $r->uri;
577: }
578: }
579: if (($r->uri eq '/adm/sso') && ($form{'origurl'} =~ m{^/+tiny/+$match_domain/+\w+$})) {
580: $info{'deeplink.login'} = $form{'origurl'};
581: } elsif ($r->uri =~ m{^/+tiny/+$match_domain/+\w+$}) {
582: $info{'deeplink.login'} = $r->uri;
583: }
584: if ($info{'deeplink.login'}) {
585: if ($linkprot) {
586: $info{'linkprot'} = $linkprot;
587: if ($linkprotuser ne '') {
588: $info{'linkprotuser'} = $linkprotuser;
589: }
590: if ($linkprotexit ne '') {
591: $info{'linkprotexit'} = $linkprotexit;
592: }
593: } elsif ($linkkey ne '') {
594: $info{'linkkey'} = $linkkey;
595: }
596: }
597: if ($r->dir_config("ssodirecturl") == 1) {
598: $info{'origurl'} = $r->uri;
599: }
600: if (defined($r->dir_config("lonSSOReloginServer"))) {
601: $info{'sso.reloginserver'} =
602: $r->dir_config('lonSSOReloginServer');
603: }
604: if (($is_balancer) && ($hosthere)) {
605: $info{'noloadbalance'} = $hosthere;
606: }
607: my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'),'sso');
608: $env{'form.token'} = $token;
609: $r->internal_redirect('/adm/migrateuser');
610: $r->set_handlers('PerlHandler'=> undef);
611: }
612: return OK;
613: } else {
614: &Apache::lonnet::logthis(" SSO authorized unknown user $user ");
615: my @cancreate;
616: my %domconfig =
617: &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
618: if (ref($domconfig{'usercreation'}) eq 'HASH') {
619: if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
620: if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
621: @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}};
622: } elsif (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') &&
623: ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) {
624: @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'});
625: }
626: }
627: }
628: if ((grep(/^sso$/,@cancreate)) || (defined($r->dir_config('lonSSOUserUnknownRedirect')))) {
629: $r->subprocess_env->set('SSOUserUnknown' => $user);
630: $r->subprocess_env->set('SSOUserDomain' => $domain);
631: if (grep(/^sso$/,@cancreate)) {
632: #FIXME - need to preserve origurl, role and symb, or linkprot or linkkey for use after account
633: # creation. If lcssowin is 1, createaccount needs to close pop-up and display in main window.
634: $r->set_handlers('PerlHandler'=> [\&Apache::createaccount::handler]);
635: $r->handler('perl-script');
636: } else {
637: $r->internal_redirect($r->dir_config('lonSSOUserUnknownRedirect'));
638: $r->set_handlers('PerlHandler'=> undef);
639: }
640: return OK;
641: }
642: }
643: return undef;
644: }
645:
646: sub handler {
647: my $r = shift;
648: my $requrl=$r->uri;
649:
650: if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) {
651: return OK;
652: }
653:
654: if (&Apache::lonnet::is_domainimage($requrl)) {
655: return OK;
656: }
657:
658: my %user;
659: my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user);
660:
661: unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) {
662: my $result = &sso_login($r,$handle,$user{'name'});
663: if (defined($result)) {
664: return $result;
665: }
666: }
667:
668: my ($is_balancer,$otherserver);
669:
670: if ($handle eq '') {
671: unless ((($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) ||
672: ($requrl =~ m{^/public/$match_domain/$match_courseid/syllabus}) ||
673: ($requrl =~ m{^/adm/help/}) || ($requrl eq '/adm/sso') ||
674: ($requrl =~ m{^/res/$match_domain/$match_username/})) {
675: $r->log_reason("Cookie not valid", $r->filename);
676: }
677: } elsif ($handle ne '') {
678:
679: # ------------------------------------------------------ Initialize Environment
680: my $lonidsdir=$r->dir_config('lonIDsDir');
681: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
682:
683: # --------------------------------------------------------- Initialize Language
684:
685: &Apache::lonlocal::get_language_handle($r);
686:
687: }
688:
689: # -------------------------------------------------- Should be a valid user now
690: if ($env{'user.name'} ne '' && $env{'user.domain'} ne '') {
691: # -------------------------------------------------------------- Resource State
692:
693: my ($cdom,$cnum);
694: if ($env{'request.course.id'}) {
695: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
696: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
697: }
698: if ($requrl=~/^\/+(res|uploaded)\//) {
699: $env{'request.state'} = "published";
700: } else {
701: $env{'request.state'} = 'unknown';
702: }
703: $env{'request.filename'} = $r->filename;
704: $env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl);
705: my ($suppext,$checkabsolute);
706: if ($requrl =~ m{^/adm/wrapper/ext/}) {
707: my $query = $r->args;
708: if ($query) {
709: my $preserved;
710: foreach my $pair (split(/&/,$query)) {
711: my ($name, $value) = split(/=/,$pair);
712: unless (($name eq 'symb') || ($name eq 'usehttp')) {
713: $preserved .= $pair.'&';
714: }
715: if (($env{'request.course.id'}) && ($name eq 'folderpath')) {
716: if ($value =~ /^supplemental/) {
717: $suppext = 1;
718: }
719: }
720: }
721: $preserved =~ s/\&$//;
722: if ($preserved) {
723: $env{'request.external.querystring'} = $preserved;
724: }
725: }
726: if ($env{'request.course.id'}) {
727: $checkabsolute = 1;
728: }
729: } elsif ($env{'request.course.id'} &&
730: (($requrl =~ m{^/adm/$match_domain/$match_username/aboutme$}) ||
731: ($requrl eq "/public/$cdom/$cnum/syllabus") ||
732: ($requrl =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}))) {
733: my $query = $r->args;
734: if ($query) {
735: foreach my $pair (split(/&/,$query)) {
736: my ($name, $value) = split(/=/,$pair);
737: if ($name eq 'folderpath') {
738: if ($value =~ /^supplemental/) {
739: $suppext = 1;
740: }
741: last;
742: }
743: }
744: }
745: if ($requrl =~ m{^/public/$cdom/$cnum/syllabus$}) {
746: $checkabsolute = 1;
747: }
748: }
749: if ($checkabsolute) {
750: my $hostname = $r->hostname();
751: my $lonhost = &Apache::lonnet::host_from_dns($hostname);
752: if ($lonhost) {
753: my $actual = &Apache::lonnet::absolute_url($hostname,1,1);
754: my $exphostname = &Apache::lonnet::hostname($lonhost);
755: my $expected = $Apache::lonnet::protocol{$lonhost}.'://'.$hostname;
756: unless ($actual eq $expected) {
757: $env{'request.use_absolute'} = $expected;
758: }
759: }
760: }
761: # -------------------------------------------------------- Load POST parameters
762:
763: &Apache::lonacc::get_posted_cgi($r);
764:
765: # ------------------------------------------------------ Check if load balancer
766:
767: my $checkexempt;
768: if ($env{'user.loadbalexempt'} eq $r->dir_config('lonHostID')) {
769: if ($env{'user.loadbalcheck.time'} + 600 > time) {
770: $checkexempt = 1;
771: }
772: }
773: if ($env{'user.noloadbalance'} eq $r->dir_config('lonHostID')) {
774: $checkexempt = 1;
775: }
776: unless (($checkexempt) || (($requrl eq '/adm/switchserver') && (!$r->is_initial_req()))) {
777: ($is_balancer,$otherserver) =
778: &Apache::lonnet::check_loadbalancing($env{'user.name'},
779: $env{'user.domain'});
780: if ($is_balancer) {
781: # Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer)
782: my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r);
783: if (($found_server) && ($balancer_cookie =~ /^\Q$env{'user.domain'}\E_\Q$env{'user.name'}\E_/)) {
784: $otherserver = $found_server;
785: }
786: unless ($requrl eq '/adm/switchserver') {
787: $r->set_handlers('PerlResponseHandler'=>
788: [\&Apache::switchserver::handler]);
789: }
790: if ($otherserver ne '') {
791: $env{'form.otherserver'} = $otherserver;
792: }
793: unless (($env{'form.origurl'}) || ($r->uri eq '/adm/roles') ||
794: ($r->uri eq '/adm/switchserver') || ($r->uri eq '/adm/sso')) {
795: $env{'form.origurl'} = $r->uri;
796: }
797: }
798: }
799: if ($requrl=~m{^/+tiny/+$match_domain/+\w+$}) {
800: if ($r->args) {
801: &Apache::loncommon::get_unprocessed_cgi($r->args,['ttoken']);
802: if (defined($env{'form.ttoken'})) {
803: my %info = &Apache::lonnet::tmpget($env{'form.ttoken'});
804: if (($info{'origurl'} ne '') && ($info{'origurl'} eq $requrl)) {
805: my %data;
806: if (($info{'linkprotuser'} ne '') && ($info{'linkprot'}) &&
807: ($info{'linkprotuser'} ne $env{'user.name'}.':'.$env{'user.domain'})) {
808: %data = (
809: origurl => $requrl,
810: linkprot => $info{'linkprot'},
811: linkprotuser => $info{'linkprotuser'},
812: linkprotexit => $info{'linkprotexit'},
813: );
814: } elsif ($info{'ltoken'} ne '') {
815: my %ltoken_info = &Apache::lonnet::tmpget($info{'ltoken'});
816: if (($ltoken_info{'linkprotuser'} ne '') && ($ltoken_info{'linkprot'}) &&
817: ($ltoken_info{'linkprotuser'} ne $env{'user.name'}.':'.$env{'user.domain'})) {
818: %data = (
819: origurl => $requrl,
820: linkprot => $ltoken_info{'linkprot'},
821: linkprotuser => $ltoken_info{'linkprotuser'},
822: linkprotexit => $ltoken_info{'linkprotexit'},
823: );
824: }
825: }
826: if (keys(%data)) {
827: my $delete = &Apache::lonnet::tmpdel($env{'form.ttoken'});
828: if ($info{'ltoken'} ne '') {
829: my $delete = &Apache::lonnet::tmpdel($info{'ltoken'});
830: }
831: my $token =
832: &Apache::lonnet::tmpput(\%data,$r->dir_config('lonHostID'),'retry');
833: unless (($token eq 'con_lost') || ($token eq 'refused') || ($token =~ /^error:/) ||
834: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
835: $r->internal_redirect('/adm/relaunch?rtoken='.$token);
836: $r->set_handlers('PerlHandler'=> undef);
837: return OK;
838: }
839: }
840: }
841: }
842: }
843: if ($env{'user.name'} eq 'public' &&
844: $env{'user.domain'} eq 'public') {
845: $env{'request.firsturl'}=$requrl;
846: return FORBIDDEN;
847: }
848: return OK;
849: }
850: # ---------------------------------------------------------------- Check access
851: my $now = time;
852: my ($check_symb,$check_access,$check_block,$access,$poss_symb);
853: if ($requrl !~ m{^/(?:adm|public|(?:prt|zip)spool)/}
854: || $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) {
855: $check_access = 1;
856: }
857: if ((!$check_access) && ($env{'request.course.id'})) {
858: if (($requrl eq '/adm/viewclasslist') ||
859: ($requrl =~ m{^(/adm/wrapper|)\Q/uploaded/$cdom/$cnum/docs/\E}) ||
860: ($requrl =~ m{^/adm/.*/aboutme$}) ||
861: ($requrl=~m{^/adm/coursedocs/showdoc/}) ||
862: ($requrl=~m{^(/adm/wrapper|)/adm/$cdom/$cnum/\d+/ext\.tool$})) {
863: $check_block = 1;
864: }
865: }
866: if (($env{'request.course.id'}) && (!$suppext)) {
867: $requrl=~/\.(\w+)$/;
868: if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
869: ($requrl=~/^\/adm\/.*\/(aboutme|smppg|bulletinboard)(\?|$ )/x) ||
870: ($requrl=~/^\/adm\/wrapper\//) ||
871: ($requrl=~m|^/adm/coursedocs/showdoc/|) ||
872: ($requrl=~m|\.problem/smpedit$|) ||
873: ($requrl=~/^\/public\/.*\/syllabus$/) ||
874: ($requrl=~/^\/adm\/(viewclasslist|navmaps)$/) ||
875: ($requrl=~/^\/adm\/.*\/aboutme\/portfolio(\?|$)/) ||
876: ($requrl=~m{^/adm/$cdom/$cnum/\d+/ext\.tool$})) {
877: $check_symb = 1;
878: }
879: }
880: if (($check_access) || ($check_block)) {
881: if ($check_symb) {
882: if ($env{'form.symb'}) {
883: $poss_symb=&Apache::lonnet::symbclean($env{'form.symb'});
884: } elsif (($env{'request.course.id'}) && ($r->args ne '')) {
885: my $query = $r->args;
886: foreach my $pair (split(/&/,$query)) {
887: my ($name, $value) = split(/=/,$pair);
888: $name = &unescape($name);
889: $value =~ tr/+/ /;
890: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
891: if ($name eq 'symb') {
892: $poss_symb = &Apache::lonnet::symbclean($value);
893: last;
894: }
895: }
896: }
897: if ($poss_symb) {
898: my ($possmap,$resid,$url)=&Apache::lonnet::decode_symb($poss_symb);
899: $url = &Apache::lonnet::clutter($url);
900: my $toplevelmap = $env{'course.'.$env{'request.course.id'}.'.url'};
901: unless (($url eq $requrl) && (($possmap eq $toplevelmap) ||
902: (&Apache::lonnet::is_on_map($possmap)))) {
903: undef($poss_symb);
904: }
905: if ($poss_symb) {
906: if ((!$env{'request.role.adv'}) && ($env{'acc.randomout'}) &&
907: ($env{'acc.randomout'}=~/\&\Q$poss_symb\E\&/)) {
908: undef($poss_symb);
909: } elsif ((!$env{'request.role.adv'}) && ($env{'acc.deeplinkout'}) &&
910: ($env{'acc.deeplinkout'}=~/\&\Q$poss_symb\E\&/)) {
911: undef($poss_symb);
912: }
913: }
914: }
915: if ($poss_symb) {
916: $access=&Apache::lonnet::allowed('bre',$requrl,$poss_symb);
917: } else {
918: $access=&Apache::lonnet::allowed('bre',$requrl,'','','','',1);
919: }
920: } else {
921: my $nodeeplinkcheck;
922: if (($check_access) && ($requrl =~ /\.(sequence|page)$/)) {
923: unless ($env{'form.navmap'}) {
924: if ($r->args ne '') {
925: &Apache::loncommon::get_unprocessed_cgi($r->args,['navmap']);
926: unless ($env{'form.navmap'}) {
927: $nodeeplinkcheck = 1;
928: }
929: }
930: }
931: }
932: my $clientip = &Apache::lonnet::get_requestor_ip($r);
933: $access=&Apache::lonnet::allowed('bre',$requrl,'','',$clientip,'','',$nodeeplinkcheck);
934: }
935: }
936: if ($check_block) {
937: if ($access eq 'B') {
938: if ($poss_symb) {
939: if (&Apache::lonnet::symbverify($poss_symb,$requrl)) {
940: $env{'request.symb'} = $poss_symb;
941: }
942: }
943: &Apache::blockedaccess::setup_handler($r);
944: return OK;
945: }
946: } elsif ($check_access) {
947: if ($handle eq '') {
948: unless ($access eq 'F') {
949: if ($requrl =~ m{^/res/$match_domain/$match_username/}) {
950: $r->log_reason("Cookie not valid", $r->filename);
951: }
952: }
953: }
954: if ($access eq '1') {
955: $env{'user.error.msg'}="$requrl:bre:0:0:Choose Course";
956: return HTTP_NOT_ACCEPTABLE;
957: }
958: if ($access eq 'A') {
959: &Apache::restrictedaccess::setup_handler($r);
960: return OK;
961: }
962: if ($access eq 'B') {
963: if ($poss_symb) {
964: if (&Apache::lonnet::symbverify($poss_symb,$requrl)) {
965: $env{'request.symb'} = $poss_symb;
966: }
967: }
968: &Apache::blockedaccess::setup_handler($r);
969: return OK;
970: }
971: if ($access eq 'D') {
972: &Apache::lonprotected::setup_handler($r);
973: return OK;
974: }
975: if (($access ne '2') && ($access ne 'F')) {
976: if ($requrl =~ m{^/res/}) {
977: $access = &Apache::lonnet::allowed('bro',$requrl);
978: if ($access ne 'F') {
979: if ($requrl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
980: $access = &Apache::lonnet::allowed('bre','/res/lib/templates/simpleproblem.problem');
981: if ($access ne 'F') {
982: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
983: return HTTP_NOT_ACCEPTABLE;
984: }
985: } else {
986: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
987: return HTTP_NOT_ACCEPTABLE;
988: }
989: }
990: } elsif (($handle =~ /^publicuser_\d+$/) && (&Apache::lonnet::is_portfolio_url($requrl))) {
991: my $clientip = &Apache::lonnet::get_requestor_ip($r);
992: if (&Apache::lonnet::allowed('bre',$requrl,undef,undef,$clientip) ne 'F') {
993: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
994: return HTTP_NOT_ACCEPTABLE;
995: }
996: } else {
997: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
998: return HTTP_NOT_ACCEPTABLE;
999: }
1000: }
1001: }
1002: if ($requrl =~ m|^/prtspool/|) {
1003: my $start='/prtspool/'.$env{'user.name'}.'_'.
1004: $env{'user.domain'};
1005: if ($requrl !~ /^\Q$start\E/) {
1006: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
1007: return HTTP_NOT_ACCEPTABLE;
1008: }
1009: }
1010: if ($requrl =~ m|^/zipspool/|) {
1011: my $start='/zipspool/zipout/'.$env{'user.name'}.":".
1012: $env{'user.domain'};
1013: if ($requrl !~ /^\Q$start\E/) {
1014: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
1015: return HTTP_NOT_ACCEPTABLE;
1016: }
1017: }
1018: if ($env{'user.name'} eq 'public' &&
1019: $env{'user.domain'} eq 'public' &&
1020: $requrl !~ m{^/+(res|public|uploaded)/} &&
1021: $requrl !~ m{^/adm/[^/]+/[^/]+/aboutme/portfolio$ }x &&
1022: $requrl !~ m{^/adm/blockingstatus/.*$} &&
1023: $requrl !~ m{^/+adm/(help|logout|restrictedaccess|randomlabel\.png)}) {
1024: $env{'request.querystring'}=$r->args;
1025: $env{'request.firsturl'}=$requrl;
1026: return FORBIDDEN;
1027: }
1028: # ------------------------------------------------------------- This is allowed
1029: if ($env{'request.course.id'}) {
1030: &Apache::lonnet::countacc($requrl);
1031: my $query=$r->args;
1032: if ($check_symb) {
1033: # ------------------------------------- This is serious stuff, get symb and log
1034: my $symb;
1035: if ($query) {
1036: &Apache::loncommon::get_unprocessed_cgi($query,['symb','folderpath']);
1037: }
1038: if ($env{'form.symb'}) {
1039: $symb=&Apache::lonnet::symbclean($env{'form.symb'});
1040: if (($requrl eq '/adm/navmaps') ||
1041: ($requrl =~ m{^/adm/wrapper/}) ||
1042: ($requrl =~ m{^/adm/coursedocs/showdoc/})) {
1043: unless (&Apache::lonnet::symbverify($symb,$requrl)) {
1044: if (&Apache::lonnet::is_on_map($requrl)) {
1045: $symb = &Apache::lonnet::symbread($requrl);
1046: unless (&Apache::lonnet::symbverify($symb,$requrl)) {
1047: undef($symb);
1048: }
1049: }
1050: }
1051: if ($symb) {
1052: if ($requrl eq '/adm/navmaps') {
1053: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
1054: &Apache::lonnet::symblist($map,$murl => [$murl,$mid]);
1055: } elsif (($requrl =~ m{^/adm/wrapper/}) ||
1056: ($requrl =~ m{^/adm/coursedocs/showdoc/})) {
1057: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
1058: if ($map =~ /\.page$/) {
1059: my $mapsymb = &Apache::lonnet::symbread($map);
1060: ($map,$mid,$murl)=&Apache::lonnet::decode_symb($mapsymb);
1061: }
1062: &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
1063: 'last_known' =>[$murl,$mid]);
1064: }
1065: }
1066: } elsif ((&Apache::lonnet::symbverify($symb,$requrl)) ||
1067: (($requrl=~m|(.*)/smpedit$|) &&
1068: &Apache::lonnet::symbverify($symb,$1)) ||
1069: (($requrl=~m|(.*/aboutme)/portfolio$|) &&
1070: &Apache::lonnet::symbverify($symb,$1))) {
1071: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
1072: if (($map =~ /\.page$/) && ($requrl !~ /\.page$/)) {
1073: my $mapsymb = &Apache::lonnet::symbread($map);
1074: ($map,$mid,$murl)=&Apache::lonnet::decode_symb($mapsymb);
1075: }
1076: &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
1077: 'last_known' =>[$murl,$mid]);
1078: } else {
1079: $r->log_reason('Invalid symb for '.$requrl.': '.
1080: $symb);
1081: $env{'user.error.msg'}=
1082: "$requrl:bre:1:1:Invalid Access";
1083: return HTTP_NOT_ACCEPTABLE;
1084: }
1085: } else {
1086: if ($requrl=~m{^(/adm/.*/aboutme)/portfolio$}) {
1087: $requrl = $1;
1088: }
1089: $symb=&Apache::lonnet::symbread($requrl);
1090: if (&Apache::lonnet::is_on_map($requrl) && $symb) {
1091: my ($encstate,$invalidsymb);
1092: unless (&Apache::lonnet::symbverify($symb,$requrl,\$encstate)) {
1093: $invalidsymb = 1;
1094: #
1095: # If $env{'request.enc'} inconsistent with encryption expected for $symb
1096: # retrieved by lonnet::symbread(), call again to check for an instance of
1097: # $requrl in the course for which expected encryption matches request.enc.
1098: # If symb for different instance passes lonnet::symbverify(), use that as
1099: # the symb for $requrl and call &Apache::lonnet::allowed() for that symb.
1100: # Report invalid symb if there is no other symb. Redirect to /adm/ambiguous
1101: # if multiple possible symbs consistent with request.enc available for $requrl.
1102: #
1103: if (($env{'request.enc'} && !$encstate) || (!$env{'request.enc'} && $encstate)) {
1104: my %possibles;
1105: my $nocache = 1;
1106: my $oldsymb = $symb;
1107: $symb = &Apache::lonnet::symbread($requrl,'','','',\%possibles,$nocache);
1108: if (($symb) && ($symb ne $oldsymb)) {
1109: if (&Apache::lonnet::symbverify($symb,$requrl)) {
1110: my $access=&Apache::lonnet::allowed('bre',$requrl,$symb);
1111: if ($access eq 'B') {
1112: $env{'request.symb'} = $symb;
1113: &Apache::blockedaccess::setup_handler($r);
1114: return OK;
1115: } elsif (($access eq '2') || ($access eq 'F')) {
1116: $invalidsymb = '';
1117: }
1118: }
1119: } elsif (keys(%possibles) > 1) {
1120: $r->internal_redirect('/adm/ambiguous');
1121: return OK;
1122: }
1123: }
1124: if ($invalidsymb) {
1125: if ($requrl eq '/adm/navmaps') {
1126: undef($symb);
1127: } else {
1128: $r->log_reason('Invalid symb for '.$requrl.': '.$symb);
1129: $env{'user.error.msg'}=
1130: "$requrl:bre:1:1:Invalid Access";
1131: return HTTP_NOT_ACCEPTABLE;
1132: }
1133: }
1134: }
1135: }
1136: if ($symb) {
1137: my ($map,$mid,$murl)=
1138: &Apache::lonnet::decode_symb($symb);
1139: if ($requrl eq '/adm/navmaps') {
1140: &Apache::lonnet::symblist($map,$murl =>[$murl,$mid]);
1141: } else {
1142: if (($map =~ /\.page$/) && ($requrl !~ /\.page$/)) {
1143: my $mapsymb = &Apache::lonnet::symbread($map);
1144: ($map,$mid,$murl)=&Apache::lonnet::decode_symb($mapsymb);
1145: }
1146: &Apache::lonnet::symblist($map,$murl =>[$murl,$mid],
1147: 'last_known' =>[$murl,$mid]);
1148: }
1149: }
1150: }
1151: $env{'request.symb'}=$symb;
1152: if (($env{'request.symbread.cached.'}) && ($env{'request.symbread.cached.'} ne $symb)) {
1153: $env{'request.symbread.cached.'} = $symb;
1154: }
1155: &Apache::lonnet::courseacclog($symb);
1156: } else {
1157: # ------------------------------------------------------- This is other content
1158: &Apache::lonnet::courseacclog($requrl);
1159: }
1160: if ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/.+\.html?$}) {
1161: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1162: if ($query) {
1163: &Apache::loncommon::get_unprocessed_cgi($query,['forceedit']);
1164: if ($env{'form.forceedit'}) {
1165: $env{'request.state'} = 'edit';
1166: }
1167: }
1168: }
1169: } elsif ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/portfolio/syllabus/.+\.html?$}) {
1170: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1171: if ($query) {
1172: &Apache::loncommon::get_unprocessed_cgi($query,['forceedit','editmode']);
1173: if (($env{'form.forceedit'}) || ($env{'form.editmode'})) {
1174: $env{'request.state'} = 'edit';
1175: }
1176: }
1177: }
1178: }
1179: }
1180: return OK;
1181: } else {
1182: my $defdom=$r->dir_config('lonDefDomain');
1183: ($is_balancer,$otherserver) =
1184: &Apache::lonnet::check_loadbalancing(undef,$defdom);
1185: if ($is_balancer) {
1186: $r->set_handlers('PerlResponseHandler'=>
1187: [\&Apache::switchserver::handler]);
1188: if ($otherserver ne '') {
1189: $env{'form.otherserver'} = $otherserver;
1190: }
1191: }
1192: }
1193: # -------------------------------------------- See if this is a public resource
1194: if ($requrl=~m|^/+adm/+help/+|) {
1195: return OK;
1196: }
1197: # ------------------------------------ See if this is a viewable portfolio file
1198: if (&Apache::lonnet::is_portfolio_url($requrl)) {
1199: my $clientip = &Apache::lonnet::get_requestor_ip($r);
1200: my $access=&Apache::lonnet::allowed('bre',$requrl,undef,undef,$clientip);
1201: if ($access eq 'A') {
1202: &Apache::restrictedaccess::setup_handler($r);
1203: return OK;
1204: }
1205: if (($access ne '2') && ($access ne 'F')) {
1206: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
1207: return HTTP_NOT_ACCEPTABLE;
1208: }
1209: }
1210:
1211: # -------------------------------------------------------------- Not authorized
1212: $requrl=~/\.(\w+)$/;
1213: # if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
1214: # ($requrl=~/^\/adm\/(roles|logout|email|menu|remote)/) ||
1215: # ($requrl=~m|^/prtspool/|)) {
1216: # -------------------------- Store where they wanted to go and get login screen
1217: $env{'request.querystring'}=$r->args;
1218: $env{'request.firsturl'}=$requrl;
1219: return FORBIDDEN;
1220: # } else {
1221: # --------------------------------------------------------------------- Goodbye
1222: # return HTTP_BAD_REQUEST;
1223: # }
1224: }
1225:
1226: 1;
1227: __END__
1228:
1229: =pod
1230:
1231: =back
1232:
1233: =cut
1234:
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