Annotation of loncom/auth/lonacc.pm, revision 1.124

1.1       albertel    1: # The LearningOnline Network
                      2: # Cookie Based Access Handler
1.22      www         3: #
1.124   ! raeburn     4: # $Id: lonacc.pm,v 1.123 2008/12/10 16:28:03 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: =over
                     93: 
                     94: =cut
                     95: 
1.119     jms        96: 
1.1       albertel   97: package Apache::lonacc;
                     98: 
                     99: use strict;
1.8       www       100: use Apache::Constants qw(:common :http :methods);
1.2       www       101: use Apache::File;
1.6       www       102: use Apache::lonnet;
1.25      harris41  103: use Apache::loncommon();
1.47      www       104: use Apache::lonlocal;
1.86      albertel  105: use Apache::restrictedaccess();
1.103     raeburn   106: use Apache::blockedaccess(); 
1.16      www       107: use Fcntl qw(:flock);
1.85      raeburn   108: use LONCAPA;
1.1       albertel  109: 
1.75      albertel  110: sub cleanup {
                    111:     my ($r)=@_;
                    112:     if (! $r->is_initial_req()) { return DECLINED; }
                    113:     &Apache::lonnet::save_cache();
1.96      albertel  114:     &Apache::lontexconvert::jsMath_reset();
1.75      albertel  115:     return OK;
                    116: }
                    117: 
                    118: sub goodbye {
                    119:     my ($r)=@_;
                    120:     &Apache::lonnet::goodbye();
                    121:     return DONE;
                    122: }
                    123: 
1.76      albertel  124: ###############################################
                    125: 
                    126: sub get_posted_cgi {
1.114     raeburn   127:     my ($r,$fields) = @_;
1.76      albertel  128: 
                    129:     my $buffer;
                    130:     if ($r->header_in('Content-length')) {
                    131: 	$r->read($buffer,$r->header_in('Content-length'),0);
                    132:     }
1.113     albertel  133:     my $content_type = $r->header_in('Content-type');
                    134:     if ($content_type !~ m{^multipart/form-data}) {
1.76      albertel  135: 	my @pairs=split(/&/,$buffer);
                    136: 	my $pair;
                    137: 	foreach $pair (@pairs) {
                    138: 	    my ($name,$value) = split(/=/,$pair);
                    139: 	    $value =~ tr/+/ /;
                    140: 	    $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
                    141: 	    $name  =~ tr/+/ /;
                    142: 	    $name  =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.114     raeburn   143:             if (ref($fields) eq 'ARRAY') {
                    144:                 next if (!grep(/^\Q$name\E$/,@{$fields}));
                    145:             }
1.77      albertel  146: 	    &Apache::loncommon::add_to_env("form.$name",$value);
1.76      albertel  147: 	}
                    148:     } else {
1.113     albertel  149: 	my ($contentsep) = ($content_type =~ /boundary=\"?([^\";,]+)\"?/);
1.76      albertel  150: 	my @lines = split (/\n/,$buffer);
                    151: 	my $name='';
                    152: 	my $value='';
                    153: 	my $fname='';
                    154: 	my $fmime='';
                    155: 	my $i;
                    156: 	for ($i=0;$i<=$#lines;$i++) {
1.113     albertel  157: 	    if ($lines[$i]=~/^--\Q$contentsep\E/) {
1.76      albertel  158: 		if ($name) {
                    159: 		    chomp($value);
1.114     raeburn   160:                     if (ref($fields) eq 'ARRAY') {
                    161:                         next if (!grep(/^\Q$name\E$/,@{$fields}));
                    162:                     }
1.118     raeburn   163:                     if ($fname) {
                    164:                         if ($env{'form.symb'} ne '') {
                    165:                             my $size = (length($value))/(1024.0 * 1024.0);
                    166:                             if (&upload_size_allowed($name,$size,$fname) eq 'ok') {
                    167:                                 $env{"form.$name.filename"}=$fname;
                    168:                                 $env{"form.$name.mimetype"}=$fmime;
                    169:                                 &Apache::loncommon::add_to_env("form.$name",$value);
                    170:                             }
                    171:                         } else {
                    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:                         $value=~s/\s+$//s;
                    178:                         &Apache::loncommon::add_to_env("form.$name",$value);
                    179:                     }
1.76      albertel  180: 		}
                    181: 		if ($i<$#lines) {
                    182: 		    $i++;
                    183: 		    $lines[$i]=~
                    184: 		/Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i;
                    185: 		    $name=$1;
                    186: 		    $value='';
                    187: 		    if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) {
                    188: 			$fname=$1;
                    189: 			if 
                    190:                             ($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) {
                    191: 				$fmime=$1;
                    192: 				$i++;
                    193: 			    } else {
                    194: 				$fmime='';
                    195: 			    }
                    196: 		    } else {
                    197: 			$fname='';
                    198: 			$fmime='';
                    199: 		    }
                    200: 		    $i++;
                    201: 		}
                    202: 	    } else {
                    203: 		$value.=$lines[$i]."\n";
                    204: 	    }
                    205: 	}
                    206:     }
                    207: #
                    208: # Digested POSTed values
                    209: #
                    210: # Remember the way this was originally done (GET or POST)
                    211: #
                    212:     $env{'request.method'}=$ENV{'REQUEST_METHOD'};
                    213: #
                    214: # There may also be stuff in the query string
                    215: # Tell subsequent handlers that this was GET, not POST, so they can access query string.
                    216: # Also, unset POSTed content length to cover all tracks.
                    217: #
                    218: 
                    219:     $r->method_number(M_GET);
                    220: 
                    221:     $r->method('GET');
                    222:     $r->headers_in->unset('Content-length');
                    223: }
                    224: 
1.121     jms       225: =pod
                    226: 
                    227: =item upload_size_allowed()
                    228: 
                    229: 	Perform size checks for file uploads to essayresponse items in course context.
                    230: 	
                    231: 	Add form.HWFILESIZE.$part_$id to %env with file size (MB)
                    232: 	If file exceeds maximum allowed size, add form.HWFILETOOBIG.$part_$id to %env.
                    233: 
                    234: =cut
1.118     raeburn   235:  
                    236: sub upload_size_allowed {
                    237:     my ($name,$size,$fname) = @_;
                    238:     if ($name =~ /^HWFILE(\w+)$/) {
                    239:         my $ident = $1;
                    240:         my $item = 'HWFILESIZE'.$ident;
1.122     raeburn   241:         my $savesize = sprintf("%.6f",$size);
                    242:         &Apache::loncommon::add_to_env("form.$item",$savesize);
1.118     raeburn   243:         my $maxsize= &Apache::lonnet::EXT("resource.$ident.maxfilesize");
                    244:         if (!$maxsize) {
1.123     raeburn   245:             $maxsize = 10.0; # FIXME This should become a domain configuration.
1.118     raeburn   246:         }
                    247:         if ($size > $maxsize) {
                    248:             my $warn = 'HWFILETOOBIG'.$ident;
                    249:             &Apache::loncommon::add_to_env("form.$warn",$fname);
                    250:             return;
                    251:         }
                    252:     }
                    253:     return 'ok';
                    254: }
                    255: 
1.121     jms       256: =pod
                    257: 
                    258: =item sso_login()
                    259: 
                    260: 	handle the case of the single sign on user, at this point $r->user 
                    261: 	will be set and valid now need to find the loncapa user info and possibly
                    262: 	balance them
                    263: 	returns OK if it was a SSO and user was handled
                    264:         undef if not SSO or no means to hanle the user
                    265:         
                    266: =cut
1.117     jms       267: 
1.94      albertel  268: sub sso_login {
1.111     albertel  269:     my ($r,$handle) = @_;
1.94      albertel  270: 
                    271:     my $lonidsdir=$r->dir_config('lonIDsDir');
                    272:     if (!($r->user 
                    273: 	  && (!defined($env{'user.name'}) && !defined($env{'user.domain'}))
1.111     albertel  274: 	  && ($handle eq ''))) {
1.94      albertel  275: 	# not an SSO case or already logged in
                    276: 	return undef;
                    277:     }
                    278: 
1.97      albertel  279:     my ($user) = ($r->user =~ m/([a-zA-Z0-9_\-@.]*)/);
                    280: 
1.94      albertel  281:     my $domain = $r->dir_config('lonDefDomain');
1.97      albertel  282:     my $home=&Apache::lonnet::homeserver($user,$domain);
1.94      albertel  283:     if ($home !~ /(con_lost|no_host|no_such_host)/) {
1.107     albertel  284: 	&Apache::lonnet::logthis(" SSO authorized user $user ");
1.94      albertel  285: 	if ($r->dir_config("lonBalancer") eq 'yes') {
                    286: 	    # login but immeaditly go to switch server to find us a new 
                    287: 	    # machine
1.97      albertel  288: 	    &Apache::lonauth::success($r,$user,$domain,$home,'noredirect');
1.105     raeburn   289:             $env{'request.sso.login'} = 1;
1.106     raeburn   290:             if (defined($r->dir_config("lonSSOReloginServer"))) {
                    291:                 $env{'request.sso.reloginserver'} =
                    292:                     $r->dir_config('lonSSOReloginServer');
                    293:             }
1.94      albertel  294: 	    $r->internal_redirect('/adm/switchserver');
1.101     albertel  295: 	    $r->set_handlers('PerlHandler'=> undef);
1.94      albertel  296: 	} else {
                    297: 	    # need to login them in, so generate the need data that
                    298: 	    # migrate expects to do login
                    299: 	    my %info=('ip'        => $r->connection->remote_ip(),
                    300: 		      'domain'    => $domain,
1.97      albertel  301: 		      'username'  => $user,
1.94      albertel  302: 		      'server'    => $r->dir_config('lonHostID'),
                    303: 		      'sso.login' => 1
                    304: 		      );
1.116     raeburn   305:             if ($r->dir_config("ssodirecturl") == 1) {
                    306:                 $info{'origurl'} = $r->uri;
                    307:             }
1.106     raeburn   308:             if (defined($r->dir_config("lonSSOReloginServer"))) {
                    309:                 $info{'sso.reloginserver'} = 
                    310:                     $r->dir_config('lonSSOReloginServer'); 
                    311:             }
1.94      albertel  312: 	    my $token = 
                    313: 		&Apache::lonnet::tmpput(\%info,
                    314: 					$r->dir_config('lonHostID'));
                    315: 	    $env{'form.token'} = $token;
                    316: 	    $r->internal_redirect('/adm/migrateuser');
1.101     albertel  317: 	    $r->set_handlers('PerlHandler'=> undef);
1.94      albertel  318: 	}
                    319: 	return OK;
1.98      albertel  320:     } elsif (defined($r->dir_config('lonSSOUserUnknownRedirect'))) {
1.107     albertel  321: 	&Apache::lonnet::logthis(" SSO authorized unknown user $user ");
1.104     raeburn   322:         $r->subprocess_env->set('SSOUserUnknown' => $user);
                    323:         $r->subprocess_env->set('SSOUserDomain' => $domain);
1.115     raeburn   324:         my @cancreate;
                    325:         my %domconfig =
                    326:             &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
                    327:         if (ref($domconfig{'usercreation'}) eq 'HASH') {
                    328:             if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
                    329:                 if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
                    330:                     @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}};
                    331:                 } elsif (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') && 
                    332:                          ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) {
                    333:                     @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'});
                    334:                 }
                    335:             }
                    336:         }
                    337:         if (grep(/^sso$/,@cancreate)) {
                    338:             $r->internal_redirect('/adm/createaccount');
                    339:         } else {
                    340: 	    $r->internal_redirect($r->dir_config('lonSSOUserUnknownRedirect'));
                    341:         }
1.101     albertel  342: 	$r->set_handlers('PerlHandler'=> undef);
1.94      albertel  343: 	return OK;
                    344:     }
                    345:     return undef;
                    346: }
                    347: 
1.1       albertel  348: sub handler {
                    349:     my $r = shift;
                    350:     my $requrl=$r->uri;
1.108     raeburn   351:     if (&Apache::lonnet::is_domainimage($requrl)) {
                    352:         return OK;
                    353:     }
1.70      albertel  354: 
1.124   ! raeburn   355:     if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) {
        !           356:         return OK;
        !           357:     }
        !           358: 
1.111     albertel  359:     my $handle = &Apache::lonnet::check_for_valid_session($r);
1.93      albertel  360: 
1.111     albertel  361:     my $result = &sso_login($r,$handle);
1.100     albertel  362:     if (defined($result)) {
1.116     raeburn   363: 	return $result;
1.70      albertel  364:     }
                    365: 
1.94      albertel  366: 
1.70      albertel  367:     if ($r->dir_config("lonBalancer") eq 'yes') {
                    368: 	$r->set_handlers('PerlResponseHandler'=>
                    369: 			 [\&Apache::switchserver::handler]);
                    370:     }
1.92      albertel  371:     
                    372:     if ($handle eq '') {
                    373: 	$r->log_reason("Cookie $handle not valid", $r->filename); 
1.111     albertel  374:     } elsif ($handle ne '') {
1.6       www       375: 
1.46      www       376: # ------------------------------------------------------ Initialize Environment
1.111     albertel  377: 	my $lonidsdir=$r->dir_config('lonIDsDir');
1.92      albertel  378: 	&Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
1.47      www       379: 
                    380: # --------------------------------------------------------- Initialize Language
                    381: 
1.92      albertel  382: 	&Apache::lonlocal::get_language_handle($r);
                    383: 
                    384:     }
1.46      www       385: 
1.92      albertel  386: # -------------------------------------------------- Should be a valid user now
                    387:     if ($env{'user.name'} ne '' && $env{'user.domain'} ne '') {
1.46      www       388: # -------------------------------------------------------------- Resource State
1.6       www       389: 
1.92      albertel  390: 	if ($requrl=~/^\/+(res|uploaded)\//) {
                    391: 	    $env{'request.state'} = "published";
                    392: 	} else {
                    393: 	    $env{'request.state'} = 'unknown';
                    394: 	}
                    395: 	$env{'request.filename'} = $r->filename;
                    396: 	$env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl);
1.6       www       397: # -------------------------------------------------------- Load POST parameters
                    398: 
1.92      albertel  399: 	&Apache::lonacc::get_posted_cgi($r);
1.6       www       400: 
                    401: # ---------------------------------------------------------------- Check access
1.92      albertel  402: 	my $now = time;
1.95      albertel  403: 	if ($requrl !~ m{^/(?:adm|public|prtspool)/}
                    404: 	    || $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) {
1.92      albertel  405: 	    my $access=&Apache::lonnet::allowed('bre',$requrl);
                    406: 	    if ($access eq '1') {
                    407: 		$env{'user.error.msg'}="$requrl:bre:0:0:Choose Course";
                    408: 		return HTTP_NOT_ACCEPTABLE; 
                    409: 	    }
                    410: 	    if ($access eq 'A') {
                    411: 		&Apache::restrictedaccess::setup_handler($r);
                    412: 		return OK;
                    413: 	    }
1.103     raeburn   414:             if ($access eq 'B') {
                    415:                 &Apache::blockedaccess::setup_handler($r);
                    416:                 return OK;
                    417:             }
1.92      albertel  418: 	    if (($access ne '2') && ($access ne 'F')) {
                    419: 		$env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
                    420: 		return HTTP_NOT_ACCEPTABLE; 
1.37      albertel  421: 	    }
1.92      albertel  422: 	}
                    423: 	if ($requrl =~ m|^/prtspool/|) {
                    424: 	    my $start='/prtspool/'.$env{'user.name'}.'_'.
                    425: 		$env{'user.domain'};
                    426: 	    if ($requrl !~ /^\Q$start\E/) {
                    427: 		$env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
                    428: 		return HTTP_NOT_ACCEPTABLE;
1.67      albertel  429: 	    }
1.92      albertel  430: 	}
1.109     banghart  431: 	if ($requrl =~ m|^/zipspool/|) {
1.110     banghart  432: 	    my $start='/zipspool/zipout/'.$env{'user.name'}.":".
1.109     banghart  433: 		$env{'user.domain'};
                    434: 	    if ($requrl !~ /^\Q$start\E/) {
                    435: 		$env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
                    436: 		return HTTP_NOT_ACCEPTABLE;
                    437: 	    }
                    438: 	}
1.92      albertel  439: 	if ($env{'user.name'} eq 'public' && 
                    440: 	    $env{'user.domain'} eq 'public' &&
                    441: 	    $requrl !~ m{^/+(res|public|uploaded)/} &&
                    442: 	    $requrl !~ m{^/adm/[^/]+/[^/]+/aboutme/portfolio$ }x &&
                    443: 	    $requrl !~ m{^/+adm/(help|logout|restrictedaccess|randomlabel\.png)}) {
                    444: 	    $env{'request.querystring'}=$r->args;
                    445: 	    $env{'request.firsturl'}=$requrl;
                    446: 	    return FORBIDDEN;
                    447: 	}
1.23      www       448: # ------------------------------------------------------------- This is allowed
1.92      albertel  449: 	if ($env{'request.course.id'}) {
1.24      www       450: 	    &Apache::lonnet::countacc($requrl);
1.92      albertel  451: 	    $requrl=~/\.(\w+)$/;
                    452: 	    if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
                    453: 		($requrl=~/^\/adm\/.*\/(aboutme|navmaps|smppg|bulletinboard)(\?|$ )/x) ||
                    454: 		($requrl=~/^\/adm\/wrapper\//) ||
                    455: 		($requrl=~m|^/adm/coursedocs/showdoc/|) ||
                    456: 		($requrl=~m|\.problem/smpedit$|) ||
                    457: 		($requrl=~/^\/public\/.*\/syllabus$/)) {
1.23      www       458: # ------------------------------------- This is serious stuff, get symb and log
1.29      www       459: 		my $query=$r->args;
1.92      albertel  460: 		my $symb;
                    461: 		if ($query) {
1.29      www       462: 		    &Apache::loncommon::get_unprocessed_cgi($query,['symb']);
1.92      albertel  463: 		}
                    464: 		if ($env{'form.symb'}) {
1.64      albertel  465: 		    $symb=&Apache::lonnet::symbclean($env{'form.symb'});
1.92      albertel  466: 		    if ($requrl =~ m|^/adm/wrapper/|
1.72      albertel  467: 			|| $requrl =~ m|^/adm/coursedocs/showdoc/|) {
1.92      albertel  468: 			my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
                    469: 			&Apache::lonnet::symblist($map,$murl => [$murl,$mid],
1.63      albertel  470: 						  'last_known' =>[$murl,$mid]);
1.92      albertel  471: 		    } elsif ((&Apache::lonnet::symbverify($symb,$requrl)) ||
1.53      albertel  472: 			     (($requrl=~m|(.*)/smpedit$|) &&
                    473: 			      &Apache::lonnet::symbverify($symb,$1))) {
1.92      albertel  474: 			my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb);
                    475: 			&Apache::lonnet::symblist($map,$murl => [$murl,$mid],
                    476: 						  'last_known' =>[$murl,$mid]);
1.31      www       477: 		    } else {
                    478: 			$r->log_reason('Invalid symb for '.$requrl.': '.
1.92      albertel  479: 				       $symb);
                    480: 			$env{'user.error.msg'}=
                    481: 			    "$requrl:bre:1:1:Invalid Access";
                    482: 			return HTTP_NOT_ACCEPTABLE; 
                    483: 		    }
                    484: 		} else {
                    485: 		    $symb=&Apache::lonnet::symbread($requrl);
1.58      albertel  486: 		    if (&Apache::lonnet::is_on_map($requrl) && $symb &&
1.56      albertel  487: 			!&Apache::lonnet::symbverify($symb,$requrl)) {
1.58      albertel  488: 			$r->log_reason('Invalid symb for '.$requrl.': '.$symb);
1.92      albertel  489: 			$env{'user.error.msg'}=
                    490: 			    "$requrl:bre:1:1:Invalid Access";
                    491: 			return HTTP_NOT_ACCEPTABLE; 
1.55      albertel  492: 		    }
1.61      albertel  493: 		    if ($symb) {
1.65      albertel  494: 			my ($map,$mid,$murl)=
                    495: 			    &Apache::lonnet::decode_symb($symb);
1.63      albertel  496: 			&Apache::lonnet::symblist($map,$murl =>[$murl,$mid],
1.92      albertel  497: 						  'last_known' =>[$murl,$mid]);
1.61      albertel  498: 		    }
1.92      albertel  499: 		}
                    500: 		$env{'request.symb'}=$symb;
                    501: 		&Apache::lonnet::courseacclog($symb);
                    502: 	    } else {
1.23      www       503: # ------------------------------------------------------- This is other content
1.92      albertel  504: 		&Apache::lonnet::courseacclog($requrl);    
                    505: 	    }
1.88      albertel  506: 	}
1.92      albertel  507: 	return OK;
                    508:     }
1.21      www       509: # -------------------------------------------- See if this is a public resource
1.68      albertel  510:     if ($requrl=~m|^/+adm/+help/+|) {
1.89      albertel  511:  	return OK;
1.68      albertel  512:     }
1.90      albertel  513: # ------------------------------------ See if this is a viewable portfolio file
1.89      albertel  514:     if (&Apache::lonnet::is_portfolio_url($requrl)) {
1.90      albertel  515: 	my $access=&Apache::lonnet::allowed('bre',$requrl);
                    516: 	if ($access eq 'A') {
                    517: 	    &Apache::restrictedaccess::setup_handler($r);
                    518: 	    return OK;
                    519: 	}
                    520: 	if (($access ne '2') && ($access ne 'F')) {
                    521: 	    $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied";
                    522: 	    return HTTP_NOT_ACCEPTABLE;
                    523: 	}
1.79      raeburn   524:     }
1.87      albertel  525: 
1.34      www       526: # -------------------------------------------------------------- Not authorized
                    527:     $requrl=~/\.(\w+)$/;
1.62      albertel  528: #    if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') ||
                    529: #        ($requrl=~/^\/adm\/(roles|logout|email|menu|remote)/) ||
                    530: #        ($requrl=~m|^/prtspool/|)) {
1.34      www       531: # -------------------------- Store where they wanted to go and get login screen
1.64      albertel  532: 	$env{'request.querystring'}=$r->args;
                    533: 	$env{'request.firsturl'}=$requrl;
1.34      www       534:        return FORBIDDEN;
1.62      albertel  535: #   } else {
1.34      www       536: # --------------------------------------------------------------------- Goodbye
1.62      albertel  537: #       return HTTP_BAD_REQUEST;
                    538: #   }
1.1       albertel  539: }
                    540: 
                    541: 1;
                    542: __END__
1.120     jms       543: 
1.121     jms       544: =pod
1.120     jms       545: 
1.121     jms       546: =back
1.120     jms       547: 
1.121     jms       548: =cut
1.120     jms       549: 

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