1: # The LearningOnline Network
2: # Cookie Based Access Handler
3: #
4: # $Id: lonacc.pm,v 1.207 2022/09/17 23:38:50 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 = $firsturl;
397: } elsif ($firsturl eq '/adm/email') {
398: $form{'origurl'} = $firsturl;
399: }
400: if ($form{'linkprot'}) {
401: $linkprot = $form{'linkprot'};
402: $linkprotuser = $form{'linkprotuser'};
403: $linkprotexit = $form{'linkprotexit'};
404: } elsif ($form{'linkkey'} ne '') {
405: $linkkey = $form{'linkkey'};
406: }
407: if ($form{'iptoken'}) {
408: %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
409: my $delete = &Apache::lonnet::tmpdel($form{'iptoken'});
410: }
411: }
412: } elsif ($form{'sso'}) {
413: my $lonhost = $r->dir_config('lonHostID');
414: my $info = &Apache::lonnet::reply('tmpget:'.$form{'sso'},$lonhost);
415: &Apache::lonnet::tmpdel($form{'sso'});
416: unless (($info=~/^error/) || ($info eq 'con_lost') ||
417: ($info eq 'no_such_host')) {
418: my ($firsturl,@rest)=split(/\&/,$info);
419: if ($firsturl ne '') {
420: $form{'origurl'} = &unescape($firsturl);
421: if ($form{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) {
422: $deeplinkurl = $form{'origurl'};
423: }
424: }
425: foreach my $item (@rest) {
426: my ($key,$value) = split(/=/,$item);
427: $form{$key} = &unescape($value);
428: }
429: if ($form{'linkprot'}) {
430: $linkprot = $form{'linkprot'};
431: $linkprotuser = $form{'linkprotuser'};
432: $linkprotexit = $form{'linkprotexit'};
433: } elsif ($form{'linkkey'} ne '') {
434: $linkkey = $form{'linkkey'};
435: }
436: }
437: } elsif ($form{'ltoken'}) {
438: my %link_info = &Apache::lonnet::tmpget($form{'ltoken'});
439: $linkprot = $link_info{'linkprot'};
440: if ($linkprot) {
441: if ($link_info{'linkprotuser'} ne '') {
442: $linkprotuser = $link_info{'linkprotuser'};
443: }
444: if ($link_info{'linkprotexit'} ne '') {
445: $linkprotexit = $link_info{'linkprotexit'};
446: }
447: }
448: my $delete = &Apache::lonnet::tmpdel($form{'ltoken'});
449: delete($form{'ltoken'});
450: if ($form{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) {
451: $deeplinkurl = $form{'origurl'};
452: }
453: } elsif ($form{'linkkey'} ne '') {
454: $linkkey = $form{'linkkey'};
455: }
456:
457: my $domain = $r->dir_config('lonSSOUserDomain');
458: if ($domain eq '') {
459: $domain = $r->dir_config('lonDefDomain');
460: }
461: if (($deeplinkurl) && ($linkprot) && ($linkprotuser ne '')) {
462: unless ($linkprotuser eq $user.':'.$domain) {
463: $r->user();
464: my %data = (
465: origurl => $deeplinkurl,
466: linkprot => $linkprot,
467: linkprotuser => $linkprotuser,
468: linkprotexit => $linkprotexit,
469: );
470: if ($env{'form.lcssowin'}) {
471: $data{'lcssowin'} = $env{'form.lcssowin'};
472: }
473: my $token = &Apache::lonnet::tmpput(\%data,$r->dir_config('lonHostID'),'link');
474: unless (($token eq 'con_lost') || ($token eq 'refused') || ($token =~ /^error:/) ||
475: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
476: $r->internal_redirect('/adm/relaunch?rtoken='.$token);
477: $r->set_handlers('PerlHandler'=> undef);
478: return OK;
479: }
480: }
481: }
482: my $home=&Apache::lonnet::homeserver($user,$domain);
483: if ($home !~ /(con_lost|no_host|no_such_host)/) {
484: &Apache::lonnet::logthis(" SSO authorized user $user ");
485: my ($is_balancer,$otherserver,$hosthere);
486: if ($form{'iptoken'}) {
487: if (($sessiondata{'domain'} eq $domain) &&
488: ($sessiondata{'username'} eq $user)) {
489: $hosthere = 1;
490: }
491: }
492: unless ($hosthere) {
493: ($is_balancer,$otherserver) =
494: &Apache::lonnet::check_loadbalancing($user,$domain,'login');
495: if ($is_balancer) {
496: # Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer)
497: my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r);
498: if (($found_server) && ($balancer_cookie =~ /^\Q$domain\E_\Q$user\E_/)) {
499: $otherserver = $found_server;
500: } elsif ($otherserver eq '') {
501: my $lowest_load;
502: ($otherserver,undef,undef,undef,$lowest_load) = &Apache::lonnet::choose_server($domain);
503: if ($lowest_load > 100) {
504: $otherserver = &Apache::lonnet::spareserver($r,$lowest_load,$lowest_load,1,$domain);
505: }
506: if ($otherserver ne '') {
507: my @hosts = &Apache::lonnet::current_machine_ids();
508: if (grep(/^\Q$otherserver\E$/,@hosts)) {
509: $hosthere = $otherserver;
510: }
511: }
512: }
513: }
514: }
515: if (($is_balancer) && (!$hosthere)) {
516: # login but immediately go to switch server to find us a new
517: # machine
518: &Apache::lonauth::success($r,$user,$domain,$home,'noredirect');
519: foreach my $item (keys(%form)) {
520: $env{'form.'.$item} = $form{$item};
521: }
522: unless (($form{'symb'}) || ($form{'origurl'})) {
523: unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) {
524: $env{'form.origurl'} = $r->uri;
525: }
526: }
527: if (($r->uri eq '/adm/sso') && ($form{'origurl'} =~ m{^/+tiny/+$match_domain/+\w+$})) {
528: $env{'request.deeplink.login'} = $form{'origurl'};
529: } elsif ($r->uri =~ m{^/+tiny/+$match_domain/+\w+$}) {
530: $env{'request.deeplink.login'} = $r->uri;
531: }
532: if ($env{'request.deeplink.login'}) {
533: if ($linkprot) {
534: $env{'request.linkprot'} = $linkprot;
535: if ($linkprotuser ne '') {
536: $env{'request.linkprotuser'} = $linkprotuser;
537: }
538: if ($linkprotexit ne '') {
539: $env{'request.linkprotexit'} = $linkprotexit;
540: }
541: } elsif ($linkkey ne '') {
542: $env{'request.linkkey'} = $linkkey;
543: }
544: }
545: if (($r->uri eq '/adm/sso') && ($form{'origurl'} eq '/adm/email')) {
546: if ($form{'display'} && ($env{'form.mailrecip'} eq $user.':'.$domain)) {
547: $env{'request.display'} = $form{'display'};
548: $env{'request.mailrecip'} = $env{'form.mailrecip'};
549: }
550: }
551: $env{'request.sso.login'} = 1;
552: if (defined($r->dir_config("lonSSOReloginServer"))) {
553: $env{'request.sso.reloginserver'} =
554: $r->dir_config('lonSSOReloginServer');
555: }
556: my $redirecturl = '/adm/switchserver';
557: if ($otherserver ne '') {
558: $redirecturl .= '?otherserver='.$otherserver;
559: }
560: if ($form{'lcssowin'}) {
561: $redirecturl .= (($redirecturl=~/\?/)?'&':'?') . 'lcssowin=1';
562: }
563: $r->internal_redirect($redirecturl);
564: $r->set_handlers('PerlHandler'=> undef);
565: } else {
566: # need to login them in, so generate the need data that
567: # migrate expects to do login
568: my $ip = &Apache::lonnet::get_requestor_ip($r);
569: my %info=('ip' => $ip,
570: 'domain' => $domain,
571: 'username' => $user,
572: 'server' => $r->dir_config('lonHostID'),
573: 'sso.login' => 1
574: );
575: foreach my $item ('role','symb','iptoken','origurl','lcssowin') {
576: if (exists($form{$item})) {
577: $info{$item} = $form{$item};
578: } elsif ($sessiondata{$item} ne '') {
579: $info{$item} = $sessiondata{$item};
580: }
581: }
582: unless (($info{'symb'}) || ($info{'origurl'})) {
583: unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) {
584: $info{'origurl'} = $r->uri;
585: }
586: }
587: if (($r->uri eq '/adm/sso') && ($form{'origurl'} =~ m{^/+tiny/+$match_domain/+\w+$})) {
588: $info{'deeplink.login'} = $form{'origurl'};
589: } elsif ($r->uri =~ m{^/+tiny/+$match_domain/+\w+$}) {
590: $info{'deeplink.login'} = $r->uri;
591: }
592: if ($info{'deeplink.login'}) {
593: if ($linkprot) {
594: $info{'linkprot'} = $linkprot;
595: if ($linkprotuser ne '') {
596: $info{'linkprotuser'} = $linkprotuser;
597: }
598: if ($linkprotexit ne '') {
599: $info{'linkprotexit'} = $linkprotexit;
600: }
601: } elsif ($linkkey ne '') {
602: $info{'linkkey'} = $linkkey;
603: }
604: }
605: if (($r->uri eq '/adm/sso') && ($form{'origurl'} eq '/adm/email')) {
606: if ($form{'display'} && ($form{'mailrecip'} eq $user.':'.$domain)) {
607: $info{'display'} = &escape($form{'display'});
608: $info{'mailrecip'} = &escape($form{'mailrecip'});
609: }
610: }
611: if ($r->dir_config("ssodirecturl") == 1) {
612: $info{'origurl'} = $r->uri;
613: }
614: if (defined($r->dir_config("lonSSOReloginServer"))) {
615: $info{'sso.reloginserver'} =
616: $r->dir_config('lonSSOReloginServer');
617: }
618: if (($is_balancer) && ($hosthere)) {
619: $info{'noloadbalance'} = $hosthere;
620: }
621: my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'),'sso');
622: $env{'form.token'} = $token;
623: $r->internal_redirect('/adm/migrateuser');
624: $r->set_handlers('PerlHandler'=> undef);
625: }
626: return OK;
627: } else {
628: &Apache::lonnet::logthis(" SSO authorized unknown user $user ");
629: my @cancreate;
630: my %domconfig =
631: &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
632: if (ref($domconfig{'usercreation'}) eq 'HASH') {
633: if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
634: if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
635: @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}};
636: } elsif (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') &&
637: ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) {
638: @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'});
639: }
640: }
641: }
642: if ((grep(/^sso$/,@cancreate)) || (defined($r->dir_config('lonSSOUserUnknownRedirect')))) {
643: $r->subprocess_env->set('SSOUserUnknown' => $user);
644: $r->subprocess_env->set('SSOUserDomain' => $domain);
645: if (grep(/^sso$/,@cancreate)) {
646: #FIXME - need to preserve origurl, role and symb, or linkprot or linkkey for use after account
647: # creation. If lcssowin is 1, createaccount needs to close pop-up and display in main window.
648: $r->set_handlers('PerlHandler'=> [\&Apache::createaccount::handler]);
649: $r->handler('perl-script');
650: } else {
651: $r->internal_redirect($r->dir_config('lonSSOUserUnknownRedirect'));
652: $r->set_handlers('PerlHandler'=> undef);
653: }
654: return OK;
655: }
656: }
657: return undef;
658: }
659:
660: sub handler {
661: my $r = shift;
662: my $requrl=$r->uri;
663:
664: if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) {
665: return OK;
666: }
667:
668: if (&Apache::lonnet::is_domainimage($requrl)) {
669: return OK;
670: }
671:
672: my %user;
673: my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user);
674:
675: unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) {
676: my $result = &sso_login($r,$handle,$user{'name'});
677: if (defined($result)) {
678: return $result;
679: }
680: }
681:
682: my ($is_balancer,$otherserver);
683:
684: if ($handle eq '') {
685: unless ((($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) ||
686: ($requrl =~ m{^/public/$match_domain/$match_courseid/syllabus}) ||
687: ($requrl =~ m{^/adm/help/}) || ($requrl eq '/adm/sso') ||
688: ($requrl =~ m{^/res/$match_domain/$match_username/})) {
689: $r->log_reason("Cookie not valid", $r->filename);
690: }
691: } elsif ($handle ne '') {
692:
693: # ------------------------------------------------------ Initialize Environment
694: my $lonidsdir=$r->dir_config('lonIDsDir');
695: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
696:
697: # --------------------------------------------------------- Initialize Language
698:
699: &Apache::lonlocal::get_language_handle($r);
700:
701: }
702:
703: # -------------------------------------------------- Should be a valid user now
704: if ($env{'user.name'} ne '' && $env{'user.domain'} ne '') {
705: # -------------------------------------------------------------- Resource State
706:
707: my ($cdom,$cnum);
708: if ($env{'request.course.id'}) {
709: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
710: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
711: }
712: if ($requrl=~/^\/+(res|uploaded)\//) {
713: $env{'request.state'} = "published";
714: } else {
715: $env{'request.state'} = 'unknown';
716: }
717: $env{'request.filename'} = $r->filename;
718: $env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl);
719: my ($suppext,$checkabsolute);
720: if ($requrl =~ m{^/adm/wrapper/ext/}) {
721: my $query = $r->args;
722: if ($query) {
723: my $preserved;
724: foreach my $pair (split(/&/,$query)) {
725: my ($name, $value) = split(/=/,$pair);
726: unless (($name eq 'symb') || ($name eq 'usehttp')) {
727: $preserved .= $pair.'&';
728: }
729: if (($env{'request.course.id'}) && ($name eq 'folderpath')) {
730: if ($value =~ /^supplemental/) {
731: $suppext = 1;
732: }
733: }
734: }
735: $preserved =~ s/\&$//;
736: if ($preserved) {
737: $env{'request.external.querystring'} = $preserved;
738: }
739: }
740: if ($env{'request.course.id'}) {
741: $checkabsolute = 1;
742: }
743: } elsif ($env{'request.course.id'} &&
744: (($requrl =~ m{^/adm/$match_domain/$match_username/aboutme$}) ||
745: ($requrl eq "/public/$cdom/$cnum/syllabus") ||
746: ($requrl =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}))) {
747: my $query = $r->args;
748: if ($query) {
749: foreach my $pair (split(/&/,$query)) {
750: my ($name, $value) = split(/=/,$pair);
751: if ($name eq 'folderpath') {
752: if ($value =~ /^supplemental/) {
753: $suppext = 1;
754: }
755: last;
756: }
757: }
758: }
759: if ($requrl =~ m{^/public/$cdom/$cnum/syllabus$}) {
760: $checkabsolute = 1;
761: }
762: }
763: if ($checkabsolute) {
764: my $hostname = $r->hostname();
765: my $lonhost = &Apache::lonnet::host_from_dns($hostname);
766: if ($lonhost) {
767: my $actual = &Apache::lonnet::absolute_url($hostname,1,1);
768: my $exphostname = &Apache::lonnet::hostname($lonhost);
769: my $expected = $Apache::lonnet::protocol{$lonhost}.'://'.$hostname;
770: unless ($actual eq $expected) {
771: $env{'request.use_absolute'} = $expected;
772: }
773: }
774: }
775: # -------------------------------------------------------- Load POST parameters
776:
777: &Apache::lonacc::get_posted_cgi($r);
778:
779: # ------------------------------------------------------ Check if load balancer
780:
781: my $checkexempt;
782: if ($env{'user.loadbalexempt'} eq $r->dir_config('lonHostID')) {
783: if ($env{'user.loadbalcheck.time'} + 600 > time) {
784: $checkexempt = 1;
785: }
786: }
787: if ($env{'user.noloadbalance'} eq $r->dir_config('lonHostID')) {
788: $checkexempt = 1;
789: }
790: unless (($checkexempt) || (($requrl eq '/adm/switchserver') && (!$r->is_initial_req()))) {
791: ($is_balancer,$otherserver) =
792: &Apache::lonnet::check_loadbalancing($env{'user.name'},
793: $env{'user.domain'});
794: if ($is_balancer) {
795: # Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer)
796: my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r);
797: if (($found_server) && ($balancer_cookie =~ /^\Q$env{'user.domain'}\E_\Q$env{'user.name'}\E_/)) {
798: $otherserver = $found_server;
799: }
800: unless ($requrl eq '/adm/switchserver') {
801: $r->set_handlers('PerlResponseHandler'=>
802: [\&Apache::switchserver::handler]);
803: }
804: if ($otherserver ne '') {
805: $env{'form.otherserver'} = $otherserver;
806: }
807: unless (($env{'form.origurl'}) || ($r->uri eq '/adm/roles') ||
808: ($r->uri eq '/adm/switchserver') || ($r->uri eq '/adm/sso')) {
809: $env{'form.origurl'} = $r->uri;
810: }
811: }
812: }
813: if ($requrl=~m{^/+tiny/+$match_domain/+\w+$}) {
814: if ($r->args) {
815: &Apache::loncommon::get_unprocessed_cgi($r->args,['ttoken']);
816: if (defined($env{'form.ttoken'})) {
817: my %info = &Apache::lonnet::tmpget($env{'form.ttoken'});
818: if (($info{'origurl'} ne '') && ($info{'origurl'} eq $requrl)) {
819: my %data;
820: if (($info{'linkprotuser'} ne '') && ($info{'linkprot'}) &&
821: ($info{'linkprotuser'} ne $env{'user.name'}.':'.$env{'user.domain'})) {
822: %data = (
823: origurl => $requrl,
824: linkprot => $info{'linkprot'},
825: linkprotuser => $info{'linkprotuser'},
826: linkprotexit => $info{'linkprotexit'},
827: );
828: } elsif ($info{'ltoken'} ne '') {
829: my %ltoken_info = &Apache::lonnet::tmpget($info{'ltoken'});
830: if (($ltoken_info{'linkprotuser'} ne '') && ($ltoken_info{'linkprot'}) &&
831: ($ltoken_info{'linkprotuser'} ne $env{'user.name'}.':'.$env{'user.domain'})) {
832: %data = (
833: origurl => $requrl,
834: linkprot => $ltoken_info{'linkprot'},
835: linkprotuser => $ltoken_info{'linkprotuser'},
836: linkprotexit => $ltoken_info{'linkprotexit'},
837: );
838: }
839: }
840: if (keys(%data)) {
841: my $delete = &Apache::lonnet::tmpdel($env{'form.ttoken'});
842: if ($info{'ltoken'} ne '') {
843: my $delete = &Apache::lonnet::tmpdel($info{'ltoken'});
844: }
845: my $token =
846: &Apache::lonnet::tmpput(\%data,$r->dir_config('lonHostID'),'retry');
847: unless (($token eq 'con_lost') || ($token eq 'refused') || ($token =~ /^error:/) ||
848: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
849: $r->internal_redirect('/adm/relaunch?rtoken='.$token);
850: $r->set_handlers('PerlHandler'=> undef);
851: return OK;
852: }
853: }
854: }
855: }
856: }
857: if ($env{'user.name'} eq 'public' &&
858: $env{'user.domain'} eq 'public') {
859: $env{'request.firsturl'}=$requrl;
860: return FORBIDDEN;
861: }
862: return OK;
863: }
864: # ---------------------------------------------------------------- Check access
865: my $now = time;
866: my ($check_symb,$check_access,$check_block,$access,$poss_symb);
867: if ($requrl !~ m{^/(?:adm|public|(?:prt|zip)spool)/}
868: || $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) {
869: $check_access = 1;
870: }
871: if ((!$check_access) && ($env{'request.course.id'})) {
872: if (($requrl eq '/adm/viewclasslist') ||
873: ($requrl =~ m{^(/adm/wrapper|)\Q/uploaded/$cdom/$cnum/docs/\E}) ||
874: ($requrl =~ m{^/adm/.*/aboutme$}) ||
875: ($requrl=~m{^/adm/coursedocs/showdoc/}) ||
876: ($requrl=~m{^(/adm/wrapper|)/adm/$cdom/$cnum/\d+/ext\.tool$})) {
877: $check_block = 1;
878: }
879: }
880: if (($env{'request.course.id'}) && (!$suppext)) {
881: $requrl=~/\.(\w+)$/;
882: if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
883: ($requrl=~/^\/adm\/.*\/(aboutme|smppg|bulletinboard)(\?|$ )/x) ||
884: ($requrl=~/^\/adm\/wrapper\//) ||
885: ($requrl=~m|^/adm/coursedocs/showdoc/|) ||
886: ($requrl=~m|\.problem/smpedit$|) ||
887: ($requrl=~/^\/public\/.*\/syllabus$/) ||
888: ($requrl=~/^\/adm\/(viewclasslist|navmaps)$/) ||
889: ($requrl=~/^\/adm\/.*\/aboutme\/portfolio(\?|$)/) ||
890: ($requrl=~m{^/adm/$cdom/$cnum/\d+/ext\.tool$})) {
891: $check_symb = 1;
892: }
893: }
894: if (($check_access) || ($check_block)) {
895: if ($check_symb) {
896: if ($env{'form.symb'}) {
897: $poss_symb=&Apache::lonnet::symbclean($env{'form.symb'});
898: } elsif (($env{'request.course.id'}) && ($r->args ne '')) {
899: my $query = $r->args;
900: foreach my $pair (split(/&/,$query)) {
901: my ($name, $value) = split(/=/,$pair);
902: $name = &unescape($name);
903: $value =~ tr/+/ /;
904: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
905: if ($name eq 'symb') {
906: $poss_symb = &Apache::lonnet::symbclean($value);
907: last;
908: }
909: }
910: }
911: if ($poss_symb) {
912: my ($possmap,$resid,$url)=&Apache::lonnet::decode_symb($poss_symb);
913: $url = &Apache::lonnet::clutter($url);
914: my $toplevelmap = $env{'course.'.$env{'request.course.id'}.'.url'};
915: unless (($url eq $requrl) && (($possmap eq $toplevelmap) ||
916: (&Apache::lonnet::is_on_map($possmap)))) {
917: undef($poss_symb);
918: }
919: if ($poss_symb) {
920: if ((!$env{'request.role.adv'}) && ($env{'acc.randomout'}) &&
921: ($env{'acc.randomout'}=~/\&\Q$poss_symb\E\&/)) {
922: undef($poss_symb);
923: } elsif ((!$env{'request.role.adv'}) && ($env{'acc.deeplinkout'}) &&
924: ($env{'acc.deeplinkout'}=~/\&\Q$poss_symb\E\&/)) {
925: undef($poss_symb);
926: }
927: }
928: }
929: if ($poss_symb) {
930: $access=&Apache::lonnet::allowed('bre',$requrl,$poss_symb);
931: } else {
932: $access=&Apache::lonnet::allowed('bre',$requrl,'','','','',1);
933: }
934: } else {
935: my $nodeeplinkcheck;
936: if (($check_access) && ($requrl =~ /\.(sequence|page)$/)) {
937: unless ($env{'form.navmap'}) {
938: if ($r->args ne '') {
939: &Apache::loncommon::get_unprocessed_cgi($r->args,['navmap']);
940: unless ($env{'form.navmap'}) {
941: $nodeeplinkcheck = 1;
942: }
943: }
944: }
945: }
946: my $clientip = &Apache::lonnet::get_requestor_ip($r);
947: $access=&Apache::lonnet::allowed('bre',$requrl,'','',$clientip,'','',$nodeeplinkcheck);
948: }
949: }
950: if ($check_block) {
951: if ($access eq 'B') {
952: if ($poss_symb) {
953: if (&Apache::lonnet::symbverify($poss_symb,$requrl)) {
954: $env{'request.symb'} = $poss_symb;
955: }
956: }
957: &Apache::blockedaccess::setup_handler($r);
958: return OK;
959: }
960: } elsif ($check_access) {
961: if ($handle eq '') {
962: unless ($access eq 'F') {
963: if ($requrl =~ m{^/res/$match_domain/$match_username/}) {
964: $r->log_reason("Cookie not valid", $r->filename);
965: }
966: }
967: }
968: if ($access eq '1') {
969: $env{'user.error.msg'}="$requrl:bre:0:0:Choose Course";
970: return HTTP_NOT_ACCEPTABLE;
971: }
972: if ($access eq 'A') {
973: &Apache::restrictedaccess::setup_handler($r);
974: return OK;
975: }
976: if ($access eq 'B') {
977: if ($poss_symb) {
978: if (&Apache::lonnet::symbverify($poss_symb,$requrl)) {
979: $env{'request.symb'} = $poss_symb;
980: }
981: }
982: &Apache::blockedaccess::setup_handler($r);
983: return OK;
984: }
985: if ($access eq 'D') {
986: &Apache::lonprotected::setup_handler($r);
987: return OK;
988: }
989: if (($access ne '2') && ($access ne 'F')) {
990: if ($requrl =~ m{^/res/}) {
991: $access = &Apache::lonnet::allowed('bro',$requrl);
992: if ($access ne 'F') {
993: if ($requrl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
994: $access = &Apache::lonnet::allowed('bre','/res/lib/templates/simpleproblem.problem');
995: if ($access ne 'F') {
996: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
997: return HTTP_NOT_ACCEPTABLE;
998: }
999: } else {
1000: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
1001: return HTTP_NOT_ACCEPTABLE;
1002: }
1003: }
1004: } elsif (($handle =~ /^publicuser_\d+$/) && (&Apache::lonnet::is_portfolio_url($requrl))) {
1005: my $clientip = &Apache::lonnet::get_requestor_ip($r);
1006: if (&Apache::lonnet::allowed('bre',$requrl,undef,undef,$clientip) ne 'F') {
1007: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
1008: return HTTP_NOT_ACCEPTABLE;
1009: }
1010: } else {
1011: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
1012: return HTTP_NOT_ACCEPTABLE;
1013: }
1014: }
1015: }
1016: if ($requrl =~ m|^/prtspool/|) {
1017: my $start='/prtspool/'.$env{'user.name'}.'_'.
1018: $env{'user.domain'};
1019: if ($requrl !~ /^\Q$start\E/) {
1020: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
1021: return HTTP_NOT_ACCEPTABLE;
1022: }
1023: }
1024: if ($requrl =~ m|^/zipspool/|) {
1025: my $start='/zipspool/zipout/'.$env{'user.name'}.":".
1026: $env{'user.domain'};
1027: if ($requrl !~ /^\Q$start\E/) {
1028: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
1029: return HTTP_NOT_ACCEPTABLE;
1030: }
1031: }
1032: if ($env{'user.name'} eq 'public' &&
1033: $env{'user.domain'} eq 'public' &&
1034: $requrl !~ m{^/+(res|public|uploaded)/} &&
1035: $requrl !~ m{^/adm/[^/]+/[^/]+/aboutme/portfolio$ }x &&
1036: $requrl !~ m{^/adm/blockingstatus/.*$} &&
1037: $requrl !~ m{^/+adm/(help|logout|restrictedaccess|randomlabel\.png)}) {
1038: $env{'request.querystring'}=$r->args;
1039: $env{'request.firsturl'}=$requrl;
1040: return FORBIDDEN;
1041: }
1042: # ------------------------------------------------------------- This is allowed
1043: if ($env{'request.course.id'}) {
1044: &Apache::lonnet::countacc($requrl);
1045: my $query=$r->args;
1046: if ($check_symb) {
1047: # ------------------------------------- This is serious stuff, get symb and log
1048: my $symb;
1049: if ($query) {
1050: &Apache::loncommon::get_unprocessed_cgi($query,['symb','folderpath']);
1051: }
1052: if ($env{'form.symb'}) {
1053: $symb=&Apache::lonnet::symbclean($env{'form.symb'});
1054: if (($requrl eq '/adm/navmaps') ||
1055: ($requrl =~ m{^/adm/wrapper/}) ||
1056: ($requrl =~ m{^/adm/coursedocs/showdoc/})) {
1057: unless (&Apache::lonnet::symbverify($symb,$requrl)) {
1058: if (&Apache::lonnet::is_on_map($requrl)) {
1059: $symb = &Apache::lonnet::symbread($requrl);
1060: unless (&Apache::lonnet::symbverify($symb,$requrl)) {
1061: undef($symb);
1062: }
1063: }
1064: }
1065: if ($symb) {
1066: if ($requrl eq '/adm/navmaps') {
1067: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
1068: &Apache::lonnet::symblist($map,$murl => [$murl,$mid]);
1069: } elsif (($requrl =~ m{^/adm/wrapper/}) ||
1070: ($requrl =~ m{^/adm/coursedocs/showdoc/})) {
1071: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
1072: if ($map =~ /\.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: }
1079: }
1080: } elsif ((&Apache::lonnet::symbverify($symb,$requrl)) ||
1081: (($requrl=~m|(.*)/smpedit$|) &&
1082: &Apache::lonnet::symbverify($symb,$1)) ||
1083: (($requrl=~m|(.*/aboutme)/portfolio$|) &&
1084: &Apache::lonnet::symbverify($symb,$1))) {
1085: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
1086: if (($map =~ /\.page$/) && ($requrl !~ /\.page$/)) {
1087: my $mapsymb = &Apache::lonnet::symbread($map);
1088: ($map,$mid,$murl)=&Apache::lonnet::decode_symb($mapsymb);
1089: }
1090: &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
1091: 'last_known' =>[$murl,$mid]);
1092: } else {
1093: $r->log_reason('Invalid symb for '.$requrl.': '.
1094: $symb);
1095: $env{'user.error.msg'}=
1096: "$requrl:bre:1:1:Invalid Access";
1097: return HTTP_NOT_ACCEPTABLE;
1098: }
1099: } else {
1100: if ($requrl=~m{^(/adm/.*/aboutme)/portfolio$}) {
1101: $requrl = $1;
1102: }
1103: $symb=&Apache::lonnet::symbread($requrl);
1104: if (&Apache::lonnet::is_on_map($requrl) && $symb) {
1105: my ($encstate,$invalidsymb);
1106: unless (&Apache::lonnet::symbverify($symb,$requrl,\$encstate)) {
1107: $invalidsymb = 1;
1108: #
1109: # If $env{'request.enc'} inconsistent with encryption expected for $symb
1110: # retrieved by lonnet::symbread(), call again to check for an instance of
1111: # $requrl in the course for which expected encryption matches request.enc.
1112: # If symb for different instance passes lonnet::symbverify(), use that as
1113: # the symb for $requrl and call &Apache::lonnet::allowed() for that symb.
1114: # Report invalid symb if there is no other symb. Redirect to /adm/ambiguous
1115: # if multiple possible symbs consistent with request.enc available for $requrl.
1116: #
1117: if (($env{'request.enc'} && !$encstate) || (!$env{'request.enc'} && $encstate)) {
1118: my %possibles;
1119: my $nocache = 1;
1120: my $oldsymb = $symb;
1121: $symb = &Apache::lonnet::symbread($requrl,'','','',\%possibles,$nocache);
1122: if (($symb) && ($symb ne $oldsymb)) {
1123: if (&Apache::lonnet::symbverify($symb,$requrl)) {
1124: my $access=&Apache::lonnet::allowed('bre',$requrl,$symb);
1125: if ($access eq 'B') {
1126: $env{'request.symb'} = $symb;
1127: &Apache::blockedaccess::setup_handler($r);
1128: return OK;
1129: } elsif (($access eq '2') || ($access eq 'F')) {
1130: $invalidsymb = '';
1131: }
1132: }
1133: } elsif (keys(%possibles) > 1) {
1134: $r->internal_redirect('/adm/ambiguous');
1135: return OK;
1136: }
1137: }
1138: if ($invalidsymb) {
1139: if ($requrl eq '/adm/navmaps') {
1140: undef($symb);
1141: } else {
1142: $r->log_reason('Invalid symb for '.$requrl.': '.$symb);
1143: $env{'user.error.msg'}=
1144: "$requrl:bre:1:1:Invalid Access";
1145: return HTTP_NOT_ACCEPTABLE;
1146: }
1147: }
1148: }
1149: }
1150: if ($symb) {
1151: my ($map,$mid,$murl)=
1152: &Apache::lonnet::decode_symb($symb);
1153: if ($requrl eq '/adm/navmaps') {
1154: &Apache::lonnet::symblist($map,$murl =>[$murl,$mid]);
1155: } else {
1156: if (($map =~ /\.page$/) && ($requrl !~ /\.page$/)) {
1157: my $mapsymb = &Apache::lonnet::symbread($map);
1158: ($map,$mid,$murl)=&Apache::lonnet::decode_symb($mapsymb);
1159: }
1160: &Apache::lonnet::symblist($map,$murl =>[$murl,$mid],
1161: 'last_known' =>[$murl,$mid]);
1162: }
1163: }
1164: }
1165: $env{'request.symb'}=$symb;
1166: if (($env{'request.symbread.cached.'}) && ($env{'request.symbread.cached.'} ne $symb)) {
1167: $env{'request.symbread.cached.'} = $symb;
1168: }
1169: &Apache::lonnet::courseacclog($symb);
1170: } else {
1171: # ------------------------------------------------------- This is other content
1172: &Apache::lonnet::courseacclog($requrl);
1173: }
1174: if ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/.+\.html?$}) {
1175: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1176: if ($query) {
1177: &Apache::loncommon::get_unprocessed_cgi($query,['forceedit']);
1178: if ($env{'form.forceedit'}) {
1179: $env{'request.state'} = 'edit';
1180: }
1181: }
1182: }
1183: } elsif ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/portfolio/syllabus/.+\.html?$}) {
1184: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1185: if ($query) {
1186: &Apache::loncommon::get_unprocessed_cgi($query,['forceedit','editmode']);
1187: if (($env{'form.forceedit'}) || ($env{'form.editmode'})) {
1188: $env{'request.state'} = 'edit';
1189: }
1190: }
1191: }
1192: }
1193: }
1194: return OK;
1195: } else {
1196: my $defdom=$r->dir_config('lonDefDomain');
1197: ($is_balancer,$otherserver) =
1198: &Apache::lonnet::check_loadbalancing(undef,$defdom);
1199: if ($is_balancer) {
1200: $r->set_handlers('PerlResponseHandler'=>
1201: [\&Apache::switchserver::handler]);
1202: if ($otherserver ne '') {
1203: $env{'form.otherserver'} = $otherserver;
1204: }
1205: }
1206: }
1207: # -------------------------------------------- See if this is a public resource
1208: if ($requrl=~m|^/+adm/+help/+|) {
1209: return OK;
1210: }
1211: # ------------------------------------ See if this is a viewable portfolio file
1212: if (&Apache::lonnet::is_portfolio_url($requrl)) {
1213: my $clientip = &Apache::lonnet::get_requestor_ip($r);
1214: my $access=&Apache::lonnet::allowed('bre',$requrl,undef,undef,$clientip);
1215: if ($access eq 'A') {
1216: &Apache::restrictedaccess::setup_handler($r);
1217: return OK;
1218: }
1219: if (($access ne '2') && ($access ne 'F')) {
1220: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
1221: return HTTP_NOT_ACCEPTABLE;
1222: }
1223: }
1224:
1225: # -------------------------------------------------------------- Not authorized
1226: $requrl=~/\.(\w+)$/;
1227: # if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
1228: # ($requrl=~/^\/adm\/(roles|logout|email|menu|remote)/) ||
1229: # ($requrl=~m|^/prtspool/|)) {
1230: # -------------------------- Store where they wanted to go and get login screen
1231: $env{'request.querystring'}=$r->args;
1232: $env{'request.firsturl'}=$requrl;
1233: return FORBIDDEN;
1234: # } else {
1235: # --------------------------------------------------------------------- Goodbye
1236: # return HTTP_BAD_REQUEST;
1237: # }
1238: }
1239:
1240: 1;
1241: __END__
1242:
1243: =pod
1244:
1245: =back
1246:
1247: =cut
1248:
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