Annotation of loncom/auth/lonacc.pm, revision 1.159.2.5.2.4
1.1 albertel 1: # The LearningOnline Network
2: # Cookie Based Access Handler
1.22 www 3: #
1.159.2.5.2.4! (raeburn 4:: # $Id: lonacc.pm,v 1.159.2.5.2.3 2019/02/06 15:14:10 raeburn Exp $
1.22 www 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: #
1.25 harris41 28: ###
1.1 albertel 29:
1.121 jms 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:
1.119 jms 94:
1.1 albertel 95: package Apache::lonacc;
96:
97: use strict;
1.8 www 98: use Apache::Constants qw(:common :http :methods);
1.2 www 99: use Apache::File;
1.6 www 100: use Apache::lonnet;
1.25 harris41 101: use Apache::loncommon();
1.47 www 102: use Apache::lonlocal;
1.86 albertel 103: use Apache::restrictedaccess();
1.148 raeburn 104: use Apache::blockedaccess();
1.16 www 105: use Fcntl qw(:flock);
1.141 raeburn 106: use LONCAPA qw(:DEFAULT :match);
1.1 albertel 107:
1.75 albertel 108: sub cleanup {
109: my ($r)=@_;
110: if (! $r->is_initial_req()) { return DECLINED; }
111: &Apache::lonnet::save_cache();
112: return OK;
113: }
114:
115: sub goodbye {
116: my ($r)=@_;
117: &Apache::lonnet::goodbye();
118: return DONE;
119: }
120:
1.76 albertel 121: ###############################################
122:
123: sub get_posted_cgi {
1.114 raeburn 124: my ($r,$fields) = @_;
1.76 albertel 125:
126: my $buffer;
127: if ($r->header_in('Content-length')) {
128: $r->read($buffer,$r->header_in('Content-length'),0);
129: }
1.113 albertel 130: my $content_type = $r->header_in('Content-type');
131: if ($content_type !~ m{^multipart/form-data}) {
1.76 albertel 132: my @pairs=split(/&/,$buffer);
133: my $pair;
134: foreach $pair (@pairs) {
135: my ($name,$value) = split(/=/,$pair);
136: $value =~ tr/+/ /;
137: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
138: $name =~ tr/+/ /;
139: $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.114 raeburn 140: if (ref($fields) eq 'ARRAY') {
141: next if (!grep(/^\Q$name\E$/,@{$fields}));
142: }
1.77 albertel 143: &Apache::loncommon::add_to_env("form.$name",$value);
1.76 albertel 144: }
145: } else {
1.113 albertel 146: my ($contentsep) = ($content_type =~ /boundary=\"?([^\";,]+)\"?/);
1.76 albertel 147: my @lines = split (/\n/,$buffer);
148: my $name='';
149: my $value='';
150: my $fname='';
151: my $fmime='';
152: my $i;
153: for ($i=0;$i<=$#lines;$i++) {
1.113 albertel 154: if ($lines[$i]=~/^--\Q$contentsep\E/) {
1.76 albertel 155: if ($name) {
1.139 raeburn 156: chomp($value);
157: if (($r->uri eq '/adm/portfolio') &&
158: ($name eq 'uploaddoc')) {
159: if (length($value) == 1) {
160: $value=~s/[\r\n]$//;
161: }
1.159.2.5.2.2 (raeburn 162:: } elsif ($fname =~ /\.(xls|doc|ppt)(x|m)$/i) {
1.154 raeburn 163: $value=~s/[\r\n]$//;
1.139 raeburn 164: }
1.114 raeburn 165: if (ref($fields) eq 'ARRAY') {
166: next if (!grep(/^\Q$name\E$/,@{$fields}));
167: }
1.118 raeburn 168: if ($fname) {
169: if ($env{'form.symb'} ne '') {
170: my $size = (length($value))/(1024.0 * 1024.0);
171: if (&upload_size_allowed($name,$size,$fname) eq 'ok') {
172: $env{"form.$name.filename"}=$fname;
173: $env{"form.$name.mimetype"}=$fmime;
174: &Apache::loncommon::add_to_env("form.$name",$value);
175: }
176: } else {
177: $env{"form.$name.filename"}=$fname;
178: $env{"form.$name.mimetype"}=$fmime;
179: &Apache::loncommon::add_to_env("form.$name",$value);
180: }
181: } else {
182: $value=~s/\s+$//s;
183: &Apache::loncommon::add_to_env("form.$name",$value);
184: }
1.76 albertel 185: }
186: if ($i<$#lines) {
187: $i++;
188: $lines[$i]=~
189: /Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i;
190: $name=$1;
191: $value='';
192: if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) {
193: $fname=$1;
194: if
195: ($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) {
196: $fmime=$1;
197: $i++;
198: } else {
199: $fmime='';
200: }
201: } else {
202: $fname='';
203: $fmime='';
204: }
205: $i++;
206: }
207: } else {
208: $value.=$lines[$i]."\n";
209: }
210: }
211: }
212: #
213: # Digested POSTed values
214: #
215: # Remember the way this was originally done (GET or POST)
216: #
217: $env{'request.method'}=$ENV{'REQUEST_METHOD'};
218: #
219: # There may also be stuff in the query string
220: # Tell subsequent handlers that this was GET, not POST, so they can access query string.
221: # Also, unset POSTed content length to cover all tracks.
222: #
223:
224: $r->method_number(M_GET);
225:
226: $r->method('GET');
227: $r->headers_in->unset('Content-length');
228: }
229:
1.121 jms 230: =pod
231:
1.146 raeburn 232: =over
233:
1.121 jms 234: =item upload_size_allowed()
235:
236: Perform size checks for file uploads to essayresponse items in course context.
237:
238: Add form.HWFILESIZE.$part_$id to %env with file size (MB)
239: If file exceeds maximum allowed size, add form.HWFILETOOBIG.$part_$id to %env.
240:
241: =cut
1.118 raeburn 242:
243: sub upload_size_allowed {
244: my ($name,$size,$fname) = @_;
245: if ($name =~ /^HWFILE(\w+)$/) {
246: my $ident = $1;
247: my $item = 'HWFILESIZE'.$ident;
1.122 raeburn 248: my $savesize = sprintf("%.6f",$size);
249: &Apache::loncommon::add_to_env("form.$item",$savesize);
1.118 raeburn 250: my $maxsize= &Apache::lonnet::EXT("resource.$ident.maxfilesize");
251: if (!$maxsize) {
1.123 raeburn 252: $maxsize = 10.0; # FIXME This should become a domain configuration.
1.118 raeburn 253: }
254: if ($size > $maxsize) {
255: my $warn = 'HWFILETOOBIG'.$ident;
256: &Apache::loncommon::add_to_env("form.$warn",$fname);
257: return;
258: }
259: }
260: return 'ok';
261: }
262:
1.121 jms 263: =pod
264:
265: =item sso_login()
266:
267: handle the case of the single sign on user, at this point $r->user
1.150 raeburn 268: will be set and valid; now need to find the loncapa user info, and possibly
1.149 raeburn 269: balance them. If $r->user() is set this means either it was either set by
1.150 raeburn 270: SSO or by checkauthen.pm, if a valid cookie was found. The latter case can
271: be identified by the third arg ($usename), except when lonacc is called in
272: an internal redirect to /adm/switchserver (e.g., load-balancing following
273: successful authentication) -- no cookie set yet. For that particular case
274: simply skip the call to sso_login().
1.149 raeburn 275:
276: returns OK if it was SSO and user was handled.
277: returns undef if not SSO or no means to handle the user.
1.121 jms 278:
279: =cut
1.117 jms 280:
1.94 albertel 281: sub sso_login {
1.149 raeburn 282: my ($r,$handle,$username) = @_;
1.94 albertel 283:
1.156 raeburn 284: if (($r->user eq '') || ($username ne '') || ($r->user eq 'public:public') ||
1.143 raeburn 285: (defined($env{'user.name'}) && (defined($env{'user.domain'}))
286: && ($handle ne ''))) {
1.94 albertel 287: # not an SSO case or already logged in
288: return undef;
289: }
290:
1.159.2.1 raeburn 291: my ($user) = ($r->user =~ m/^($match_username)$/);
292: if ($user eq '') {
293: return undef;
294: }
1.97 albertel 295:
1.126 raeburn 296: my $query = $r->args;
297: my %form;
298: if ($query) {
1.145 raeburn 299: my @items = ('role','symb','iptoken');
1.127 raeburn 300: &Apache::loncommon::get_unprocessed_cgi($query,\@items);
301: foreach my $item (@items) {
302: if (defined($env{'form.'.$item})) {
303: $form{$item} = $env{'form.'.$item};
1.126 raeburn 304: }
305: }
306: }
307:
1.145 raeburn 308: my %sessiondata;
309: if ($form{'iptoken'}) {
310: %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
1.158 raeburn 311: my $delete = &Apache::lonnet::tmpdel($form{'iptoken'});
312: unless ($sessiondata{'sessionserver'}) {
313: delete($form{'iptoken'});
314: }
1.145 raeburn 315: }
316:
1.136 raeburn 317: my $domain = $r->dir_config('lonSSOUserDomain');
318: if ($domain eq '') {
319: $domain = $r->dir_config('lonDefDomain');
320: }
1.97 albertel 321: my $home=&Apache::lonnet::homeserver($user,$domain);
1.94 albertel 322: if ($home !~ /(con_lost|no_host|no_such_host)/) {
1.107 albertel 323: &Apache::lonnet::logthis(" SSO authorized user $user ");
1.145 raeburn 324: my ($is_balancer,$otherserver,$hosthere);
325: if ($form{'iptoken'}) {
1.158 raeburn 326: if (($sessiondata{'domain'} eq $domain) &&
327: ($sessiondata{'username'} eq $user)) {
1.145 raeburn 328: $hosthere = 1;
329: }
330: }
331: unless ($hosthere) {
332: ($is_balancer,$otherserver) =
1.159.2.5 raeburn 333: &Apache::lonnet::check_loadbalancing($user,$domain,'login');
334: if ($is_balancer) {
335: if ($otherserver eq '') {
336: my $lowest_load;
337: ($otherserver,undef,undef,undef,$lowest_load) = &Apache::lonnet::choose_server($domain);
338: if ($lowest_load > 100) {
339: $otherserver = &Apache::lonnet::spareserver($lowest_load,$lowest_load,1,$domain);
340: }
341: }
342: if ($otherserver ne '') {
343: my @hosts = &Apache::lonnet::current_machine_ids();
344: if (grep(/^\Q$otherserver\E$/,@hosts)) {
345: $hosthere = $otherserver;
346: }
347: }
348: }
1.145 raeburn 349: }
1.159.2.5 raeburn 350: if (($is_balancer) && (!$hosthere)) {
1.136 raeburn 351: # login but immediately go to switch server to find us a new
1.94 albertel 352: # machine
1.127 raeburn 353: &Apache::lonauth::success($r,$user,$domain,$home,'noredirect');
1.159.2.5.2.3 (raeburn 354:: foreach my $item (keys(%form)) {
355:: $env{'form.'.$item} = $form{$item};
356:: }
357:: unless ($form{'symb'}) {
358:: unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) {
359:: $env{'form.origurl'} = $r->uri;
360:: }
361:: }
1.105 raeburn 362: $env{'request.sso.login'} = 1;
1.106 raeburn 363: if (defined($r->dir_config("lonSSOReloginServer"))) {
364: $env{'request.sso.reloginserver'} =
365: $r->dir_config('lonSSOReloginServer');
366: }
1.137 raeburn 367: my $redirecturl = '/adm/switchserver';
368: if ($otherserver ne '') {
369: $redirecturl .= '?otherserver='.$otherserver;
370: }
371: $r->internal_redirect($redirecturl);
1.101 albertel 372: $r->set_handlers('PerlHandler'=> undef);
1.94 albertel 373: } else {
374: # need to login them in, so generate the need data that
375: # migrate expects to do login
1.159.2.4 raeburn 376: my $ip = $r->get_remote_host();
1.147 raeburn 377: my %info=('ip' => $ip,
1.94 albertel 378: 'domain' => $domain,
1.97 albertel 379: 'username' => $user,
1.94 albertel 380: 'server' => $r->dir_config('lonHostID'),
381: 'sso.login' => 1
382: );
1.158 raeburn 383: foreach my $item ('role','symb','iptoken') {
1.126 raeburn 384: if (exists($form{$item})) {
385: $info{$item} = $form{$item};
386: }
387: }
1.151 raeburn 388: unless ($info{'symb'}) {
1.152 raeburn 389: unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) {
1.151 raeburn 390: $info{'origurl'} = $r->uri;
391: }
392: }
1.116 raeburn 393: if ($r->dir_config("ssodirecturl") == 1) {
394: $info{'origurl'} = $r->uri;
395: }
1.106 raeburn 396: if (defined($r->dir_config("lonSSOReloginServer"))) {
397: $info{'sso.reloginserver'} =
398: $r->dir_config('lonSSOReloginServer');
399: }
1.159.2.5 raeburn 400: if (($is_balancer) && ($hosthere)) {
401: $info{'noloadbalance'} = $hosthere;
402: }
1.94 albertel 403: my $token =
404: &Apache::lonnet::tmpput(\%info,
405: $r->dir_config('lonHostID'));
406: $env{'form.token'} = $token;
407: $r->internal_redirect('/adm/migrateuser');
1.101 albertel 408: $r->set_handlers('PerlHandler'=> undef);
1.94 albertel 409: }
410: return OK;
1.155 raeburn 411: } else {
1.107 albertel 412: &Apache::lonnet::logthis(" SSO authorized unknown user $user ");
1.115 raeburn 413: my @cancreate;
414: my %domconfig =
415: &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
416: if (ref($domconfig{'usercreation'}) eq 'HASH') {
417: if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
418: if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
419: @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}};
420: } elsif (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') &&
421: ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) {
422: @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'});
423: }
424: }
425: }
1.155 raeburn 426: if ((grep(/^sso$/,@cancreate)) || (defined($r->dir_config('lonSSOUserUnknownRedirect')))) {
427: $r->subprocess_env->set('SSOUserUnknown' => $user);
428: $r->subprocess_env->set('SSOUserDomain' => $domain);
429: if (grep(/^sso$/,@cancreate)) {
430: $r->set_handlers('PerlHandler'=> [\&Apache::createaccount::handler]);
431: $r->handler('perl-script');
432: } else {
433: $r->internal_redirect($r->dir_config('lonSSOUserUnknownRedirect'));
434: $r->set_handlers('PerlHandler'=> undef);
435: }
436: return OK;
1.115 raeburn 437: }
1.94 albertel 438: }
439: return undef;
440: }
441:
1.1 albertel 442: sub handler {
443: my $r = shift;
444: my $requrl=$r->uri;
1.149 raeburn 445:
446: if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) {
1.108 raeburn 447: return OK;
448: }
1.70 albertel 449:
1.149 raeburn 450: if (&Apache::lonnet::is_domainimage($requrl)) {
1.124 raeburn 451: return OK;
452: }
453:
1.149 raeburn 454: my %user;
455: my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user);
1.93 albertel 456:
1.150 raeburn 457: unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) {
458: my $result = &sso_login($r,$handle,$user{'name'});
459: if (defined($result)) {
460: return $result;
461: }
1.70 albertel 462: }
463:
1.137 raeburn 464: my ($is_balancer,$otherserver);
1.142 raeburn 465:
1.92 albertel 466: if ($handle eq '') {
1.159 raeburn 467: unless ((($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) ||
468: ($requrl =~ m{^/public/$match_domain/$match_courseid/syllabus}) ||
469: ($requrl =~ m{^/adm/help/}) ||
470: ($requrl =~ m{^/res/$match_domain/$match_username/})) {
1.149 raeburn 471: $r->log_reason("Cookie not valid", $r->filename);
1.142 raeburn 472: }
1.111 albertel 473: } elsif ($handle ne '') {
1.6 www 474:
1.46 www 475: # ------------------------------------------------------ Initialize Environment
1.111 albertel 476: my $lonidsdir=$r->dir_config('lonIDsDir');
1.92 albertel 477: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
1.47 www 478:
479: # --------------------------------------------------------- Initialize Language
480:
1.92 albertel 481: &Apache::lonlocal::get_language_handle($r);
482:
483: }
1.46 www 484:
1.92 albertel 485: # -------------------------------------------------- Should be a valid user now
486: if ($env{'user.name'} ne '' && $env{'user.domain'} ne '') {
1.46 www 487: # -------------------------------------------------------------- Resource State
1.6 www 488:
1.141 raeburn 489: my ($cdom,$cnum);
490: if ($env{'request.course.id'}) {
491: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
492: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
493: }
1.92 albertel 494: if ($requrl=~/^\/+(res|uploaded)\//) {
495: $env{'request.state'} = "published";
496: } else {
497: $env{'request.state'} = 'unknown';
498: }
499: $env{'request.filename'} = $r->filename;
500: $env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl);
1.157 raeburn 501: my ($suppext,$checkabsolute);
1.129 raeburn 502: if ($requrl =~ m{^/adm/wrapper/ext/}) {
503: my $query = $r->args;
504: if ($query) {
505: my $preserved;
506: foreach my $pair (split(/&/,$query)) {
507: my ($name, $value) = split(/=/,$pair);
1.131 droeschl 508: unless ($name eq 'symb') {
1.129 raeburn 509: $preserved .= $pair.'&';
510: }
1.141 raeburn 511: if (($env{'request.course.id'}) && ($name eq 'folderpath')) {
512: if ($value =~ /^supplemental/) {
513: $suppext = 1;
514: }
515: }
1.129 raeburn 516: }
517: $preserved =~ s/\&$//;
518: if ($preserved) {
519: $env{'request.external.querystring'} = $preserved;
520: }
521: }
1.157 raeburn 522: if ($env{'request.course.id'}) {
523: $checkabsolute = 1;
524: }
1.141 raeburn 525: } elsif ($env{'request.course.id'} &&
526: (($requrl =~ m{^/adm/$match_domain/$match_username/aboutme$}) ||
1.159.2.5.2.1 (raeburn 527:: ($requrl =~ m{^/public/$cdom/$cnum/syllabus$}) ||
528:: ($requrl =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}))) {
1.141 raeburn 529: my $query = $r->args;
530: if ($query) {
531: foreach my $pair (split(/&/,$query)) {
532: my ($name, $value) = split(/=/,$pair);
533: if ($name eq 'folderpath') {
534: if ($value =~ /^supplemental/) {
535: $suppext = 1;
536: }
1.159.2.5.2.4! (raeburn 537:: last;
1.141 raeburn 538: }
539: }
540: }
1.157 raeburn 541: if ($requrl =~ m{^/public/$cdom/$cnum/syllabus$}) {
542: $checkabsolute = 1;
543: }
544: }
545: if ($checkabsolute) {
546: my $hostname = $r->hostname();
547: my $lonhost = &Apache::lonnet::host_from_dns($hostname);
548: if ($lonhost) {
549: my $actual = &Apache::lonnet::absolute_url($hostname);
1.159.2.5.2.3 (raeburn 550:: my $exphostname = &Apache::lonnet::hostname($lonhost);
1.157 raeburn 551: my $expected = $Apache::lonnet::protocol{$lonhost}.'://'.$hostname;
552: unless ($actual eq $expected) {
553: $env{'request.use_absolute'} = $expected;
554: }
555: }
1.129 raeburn 556: }
1.6 www 557: # -------------------------------------------------------- Load POST parameters
558:
1.92 albertel 559: &Apache::lonacc::get_posted_cgi($r);
1.6 www 560:
1.137 raeburn 561: # ------------------------------------------------------ Check if load balancer
562:
1.138 raeburn 563: my $checkexempt;
564: if ($env{'user.loadbalexempt'} eq $r->dir_config('lonHostID')) {
565: if ($env{'user.loadbalcheck.time'} + 600 > time) {
566: $checkexempt = 1;
567: }
568: }
1.145 raeburn 569: if ($env{'user.noloadbalance'} eq $r->dir_config('lonHostID')) {
570: $checkexempt = 1;
571: }
1.138 raeburn 572: unless ($checkexempt) {
573: ($is_balancer,$otherserver) =
574: &Apache::lonnet::check_loadbalancing($env{'user.name'},
575: $env{'user.domain'});
576: }
1.137 raeburn 577: if ($is_balancer) {
578: $r->set_handlers('PerlResponseHandler'=>
579: [\&Apache::switchserver::handler]);
580: if ($otherserver ne '') {
581: $env{'form.otherserver'} = $otherserver;
582: }
1.152 raeburn 583: unless (($env{'form.origurl'}) || ($r->uri eq '/adm/roles') ||
584: ($r->uri eq '/adm/switchserver') || ($r->uri eq '/adm/sso')) {
585: $env{'form.origurl'} = $r->uri;
586: }
1.137 raeburn 587: }
1.159.2.5.2.3 (raeburn 588:: if ($requrl=~m{^/+tiny/+$match_domain/+\w+$}) {
589:: return OK;
590:: }
1.137 raeburn 591:
1.6 www 592: # ---------------------------------------------------------------- Check access
1.92 albertel 593: my $now = time;
1.159.2.5.2.4! (raeburn 594:: my $check_symb;
1.95 albertel 595: if ($requrl !~ m{^/(?:adm|public|prtspool)/}
596: || $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) {
1.159.2.5.2.4! (raeburn 597:: my ($access,$poss_symb);
! 598:: if (($env{'request.course.id'}) && (!$suppext)) {
! 599:: $requrl=~/\.(\w+)$/;
! 600:: if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
! 601:: ($requrl=~/^\/adm\/.*\/(aboutme|smppg|bulletinboard)(\?|$ )/x) ||
! 602:: ($requrl=~/^\/adm\/wrapper\//) ||
! 603:: ($requrl=~m|^/adm/coursedocs/showdoc/|) ||
! 604:: ($requrl=~m|\.problem/smpedit$|) ||
! 605:: ($requrl=~/^\/public\/.*\/syllabus$/) ||
! 606:: ($requrl=~/^\/adm\/(viewclasslist|navmaps)$/) ||
! 607:: ($requrl=~/^\/adm\/.*\/aboutme\/portfolio(\?|$)/)
! 608:: ($requrl=~m{^/adm/$cdom/$cnum/\d+/ext\.tool$})) {
! 609:: $check_symb = 1;
! 610:: }
! 611:: }
! 612:: if ($check_symb) {
! 613:: if ($env{'form.symb'}) {
! 614:: $poss_symb=&Apache::lonnet::symbclean($env{'form.symb'});
! 615:: } elsif (($env{'request.course.id'}) && ($r->args ne '')) {
! 616:: my $query = $r->args;
! 617:: foreach my $pair (split(/&/,$query)) {
! 618:: my ($name, $value) = split(/=/,$pair);
! 619:: $name = &unescape($name);
! 620:: $value =~ tr/+/ /;
! 621:: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
! 622:: if ($name eq 'symb') {
! 623:: $poss_symb = &Apache::lonnet::symbclean($value);
! 624:: last;
! 625:: }
! 626:: }
! 627:: }
! 628:: if ($poss_symb) {
! 629:: my ($possmap,$resid,$url)=&Apache::lonnet::decode_symb($poss_symb);
! 630:: $url = &Apache::lonnet::clutter($url);
! 631:: unless (($url eq $requrl) && (&Apache::lonnet::is_on_map($possmap))) {
! 632:: undef($poss_symb);
! 633:: }
! 634:: if ($poss_symb) {
! 635:: if ((!$env{'request.role.adv'}) && ($env{'acc.randomout'}) &&
! 636:: ($env{'acc.randomout'}=~/\&\Q$poss_symb\E\&/)) {
! 637:: undef($poss_symb);
! 638:: }
! 639:: }
! 640:: }
! 641:: if ($poss_symb) {
! 642:: $access=&Apache::lonnet::allowed('bre',$requrl,$poss_symb);
! 643:: } else {
! 644:: $access=&Apache::lonnet::allowed('bre',$requrl,'','','','',1);
! 645:: }
! 646:: } else {
! 647:: $access=&Apache::lonnet::allowed('bre',$requrl);
! 648:: }
1.159 raeburn 649: if ($handle eq '') {
650: unless ($access eq 'F') {
651: if ($requrl =~ m{^/res/$match_domain/$match_username/}) {
652: $r->log_reason("Cookie not valid", $r->filename);
653: }
654: }
655: }
1.92 albertel 656: if ($access eq '1') {
657: $env{'user.error.msg'}="$requrl:bre:0:0:Choose Course";
658: return HTTP_NOT_ACCEPTABLE;
659: }
660: if ($access eq 'A') {
661: &Apache::restrictedaccess::setup_handler($r);
662: return OK;
663: }
1.103 raeburn 664: if ($access eq 'B') {
1.159.2.5.2.4! (raeburn 665:: if ($poss_symb) {
! 666:: if ($requrl=~m{^(/adm/.*/aboutme)/portfolio$}) {
! 667:: $requrl = $1;
! 668:: }
! 669:: if (&Apache::lonnet::symbverify($poss_symb,$requrl)) {
! 670:: $env{'request.symb'} = $poss_symb;
! 671:: }
! 672:: }
1.103 raeburn 673: &Apache::blockedaccess::setup_handler($r);
674: return OK;
675: }
1.92 albertel 676: if (($access ne '2') && ($access ne 'F')) {
1.130 raeburn 677: if ($requrl =~ m{^/res/}) {
678: $access = &Apache::lonnet::allowed('bro',$requrl);
679: if ($access ne 'F') {
1.132 raeburn 680: if ($requrl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
681: $access = &Apache::lonnet::allowed('bre','/res/lib/templates/simpleproblem.problem');
682: if ($access ne 'F') {
683: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
684: return HTTP_NOT_ACCEPTABLE;
685: }
686: } else {
687: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
688: return HTTP_NOT_ACCEPTABLE;
689: }
1.130 raeburn 690: }
1.159.2.3 raeburn 691: } elsif (($handle =~ /^publicuser_\d+$/) && (&Apache::lonnet::is_portfolio_url($requrl))) {
692: my $clientip = $r->get_remote_host();
693: if (&Apache::lonnet::allowed('bre',$requrl,undef,undef,$clientip) ne 'F') {
694: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
695: return HTTP_NOT_ACCEPTABLE;
696: }
1.130 raeburn 697: } else {
698: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
699: return HTTP_NOT_ACCEPTABLE;
700: }
1.37 albertel 701: }
1.92 albertel 702: }
703: if ($requrl =~ m|^/prtspool/|) {
704: my $start='/prtspool/'.$env{'user.name'}.'_'.
705: $env{'user.domain'};
706: if ($requrl !~ /^\Q$start\E/) {
707: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
708: return HTTP_NOT_ACCEPTABLE;
1.67 albertel 709: }
1.92 albertel 710: }
1.109 banghart 711: if ($requrl =~ m|^/zipspool/|) {
1.110 banghart 712: my $start='/zipspool/zipout/'.$env{'user.name'}.":".
1.109 banghart 713: $env{'user.domain'};
714: if ($requrl !~ /^\Q$start\E/) {
715: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
716: return HTTP_NOT_ACCEPTABLE;
717: }
718: }
1.92 albertel 719: if ($env{'user.name'} eq 'public' &&
720: $env{'user.domain'} eq 'public' &&
721: $requrl !~ m{^/+(res|public|uploaded)/} &&
722: $requrl !~ m{^/adm/[^/]+/[^/]+/aboutme/portfolio$ }x &&
1.159.2.5.2.4! (raeburn 723:: $requrl !~ m{^/adm/blockingstatus/.*$} &&
1.92 albertel 724: $requrl !~ m{^/+adm/(help|logout|restrictedaccess|randomlabel\.png)}) {
725: $env{'request.querystring'}=$r->args;
726: $env{'request.firsturl'}=$requrl;
727: return FORBIDDEN;
728: }
1.23 www 729: # ------------------------------------------------------------- This is allowed
1.92 albertel 730: if ($env{'request.course.id'}) {
1.24 www 731: &Apache::lonnet::countacc($requrl);
1.125 raeburn 732: my $query=$r->args;
1.159.2.5.2.4! (raeburn 733:: if ($check_symb) {
1.23 www 734: # ------------------------------------- This is serious stuff, get symb and log
1.92 albertel 735: my $symb;
736: if ($query) {
1.141 raeburn 737: &Apache::loncommon::get_unprocessed_cgi($query,['symb','folderpath']);
1.92 albertel 738: }
739: if ($env{'form.symb'}) {
1.64 albertel 740: $symb=&Apache::lonnet::symbclean($env{'form.symb'});
1.92 albertel 741: if ($requrl =~ m|^/adm/wrapper/|
1.72 albertel 742: || $requrl =~ m|^/adm/coursedocs/showdoc/|) {
1.92 albertel 743: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
744: &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
1.63 albertel 745: 'last_known' =>[$murl,$mid]);
1.92 albertel 746: } elsif ((&Apache::lonnet::symbverify($symb,$requrl)) ||
1.53 albertel 747: (($requrl=~m|(.*)/smpedit$|) &&
1.134 raeburn 748: &Apache::lonnet::symbverify($symb,$1)) ||
749: (($requrl=~m|(.*/aboutme)/portfolio$|) &&
750: &Apache::lonnet::symbverify($symb,$1))) {
1.92 albertel 751: my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
752: &Apache::lonnet::symblist($map,$murl => [$murl,$mid],
753: 'last_known' =>[$murl,$mid]);
1.31 www 754: } else {
755: $r->log_reason('Invalid symb for '.$requrl.': '.
1.92 albertel 756: $symb);
757: $env{'user.error.msg'}=
758: "$requrl:bre:1:1:Invalid Access";
759: return HTTP_NOT_ACCEPTABLE;
760: }
761: } else {
1.134 raeburn 762: if ($requrl=~m{^(/adm/.*/aboutme)/portfolio$}) {
763: $requrl = $1;
764: }
1.159.2.5.2.4! (raeburn 765:: $symb=&Apache::lonnet::symbread($requrl);
! 766:: if (&Apache::lonnet::is_on_map($requrl) && $symb) {
! 767:: my ($encstate,$invalidsymb);
! 768:: unless (&Apache::lonnet::symbverify($symb,$requrl,\$encstate)) {
! 769:: $invalidsymb = 1;
! 770:: #
! 771:: # If $env{'request.enc'} is true, but no encryption for $symb retrieved
! 772:: # by original lonnet::symbread() call, call again to check for an instance
! 773:: # of $requrl in the course which has encryption, and set that as the symb.
! 774:: # If there is no such symb, or symbverify() fails for the new symb proceed
! 775:: # to report invalid symb.
! 776:: #
! 777:: if ($env{'request.enc'} && !$encstate) {
! 778:: my %possibles;
! 779:: my $nocache = 1;
! 780:: $symb = &Apache::lonnet::symbread($requrl,'','','',\%possibles,$nocache);
! 781:: if ($symb) {
! 782:: if (&Apache::lonnet::symbverify($symb,$requrl)) {
! 783:: $invalidsymb = '';
! 784:: }
! 785:: } elsif (keys(%possibles) > 1) {
! 786:: $r->internal_redirect('/adm/ambiguous');
! 787:: return OK;
! 788:: }
! 789:: }
! 790:: if ($invalidsymb) {
! 791:: $r->log_reason('Invalid symb for '.$requrl.': '.$symb);
! 792:: $env{'user.error.msg'}=
! 793:: "$requrl:bre:1:1:Invalid Access";
! 794:: return HTTP_NOT_ACCEPTABLE;
! 795:: }
! 796:: }
! 797:: }
! 798:: if ($symb) {
! 799:: my ($map,$mid,$murl)=
! 800:: &Apache::lonnet::decode_symb($symb);
! 801:: &Apache::lonnet::symblist($map,$murl =>[$murl,$mid],
! 802:: 'last_known' =>[$murl,$mid]);
1.61 albertel 803: }
1.92 albertel 804: }
805: $env{'request.symb'}=$symb;
1.159.2.5.2.4! (raeburn 806:: if (($env{'request.symbread.cached.'}) && ($env{'request.symbread.cached.'} ne $symb)) {
! 807:: $env{'request.symbread.cached.'} = $symb;
! 808:: }
1.92 albertel 809: &Apache::lonnet::courseacclog($symb);
810: } else {
1.23 www 811: # ------------------------------------------------------- This is other content
1.92 albertel 812: &Apache::lonnet::courseacclog($requrl);
813: }
1.140 raeburn 814: if ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/.+\.html?$}) {
1.125 raeburn 815: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
816: if ($query) {
817: &Apache::loncommon::get_unprocessed_cgi($query,['forceedit']);
818: if ($env{'form.forceedit'}) {
819: $env{'request.state'} = 'edit';
820: }
821: }
822: }
1.144 raeburn 823: } elsif ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/portfolio/syllabus/.+\.html?$}) {
824: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
825: if ($query) {
826: &Apache::loncommon::get_unprocessed_cgi($query,['forceedit','editmode']);
827: if (($env{'form.forceedit'}) || ($env{'form.editmode'})) {
828: $env{'request.state'} = 'edit';
829: }
830: }
831: }
1.125 raeburn 832: }
1.88 albertel 833: }
1.92 albertel 834: return OK;
1.137 raeburn 835: } else {
836: my $defdom=$r->dir_config('lonDefDomain');
837: ($is_balancer,$otherserver) =
838: &Apache::lonnet::check_loadbalancing(undef,$defdom);
839: if ($is_balancer) {
840: $r->set_handlers('PerlResponseHandler'=>
841: [\&Apache::switchserver::handler]);
842: if ($otherserver ne '') {
843: $env{'form.otherserver'} = $otherserver;
844: }
845: }
1.92 albertel 846: }
1.21 www 847: # -------------------------------------------- See if this is a public resource
1.68 albertel 848: if ($requrl=~m|^/+adm/+help/+|) {
1.89 albertel 849: return OK;
1.68 albertel 850: }
1.90 albertel 851: # ------------------------------------ See if this is a viewable portfolio file
1.89 albertel 852: if (&Apache::lonnet::is_portfolio_url($requrl)) {
1.159.2.3 raeburn 853: my $clientip = $r->get_remote_host();
854: my $access=&Apache::lonnet::allowed('bre',$requrl,undef,undef,$clientip);
1.90 albertel 855: if ($access eq 'A') {
856: &Apache::restrictedaccess::setup_handler($r);
857: return OK;
858: }
859: if (($access ne '2') && ($access ne 'F')) {
860: $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
861: return HTTP_NOT_ACCEPTABLE;
862: }
1.79 raeburn 863: }
1.87 albertel 864:
1.34 www 865: # -------------------------------------------------------------- Not authorized
866: $requrl=~/\.(\w+)$/;
1.62 albertel 867: # if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
868: # ($requrl=~/^\/adm\/(roles|logout|email|menu|remote)/) ||
869: # ($requrl=~m|^/prtspool/|)) {
1.34 www 870: # -------------------------- Store where they wanted to go and get login screen
1.64 albertel 871: $env{'request.querystring'}=$r->args;
872: $env{'request.firsturl'}=$requrl;
1.34 www 873: return FORBIDDEN;
1.62 albertel 874: # } else {
1.34 www 875: # --------------------------------------------------------------------- Goodbye
1.62 albertel 876: # return HTTP_BAD_REQUEST;
877: # }
1.1 albertel 878: }
879:
880: 1;
881: __END__
1.120 jms 882:
1.121 jms 883: =pod
1.120 jms 884:
1.121 jms 885: =back
1.120 jms 886:
1.121 jms 887: =cut
1.120 jms 888:
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