version 1.62, 2005/02/08 01:20:11
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version 1.122, 2008/11/29 10:34:30
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# |
# |
# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
# YEAR=1999 |
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# 5/21/99,5/22,5/29,5/31,6/15,16/11,22/11, |
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# YEAR=2000 |
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# 01/06,01/13,05/31,06/01,09/06,09/25,09/28,10/30,11/6, |
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# 12/25,12/26, |
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# YEAR=2001 |
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# 01/06/01,05/28,8/11,9/26,11/29 Gerd Kortemeyer |
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# YEAR=2002 |
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# 1/4,2/25 Gerd Kortemeyer |
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# |
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### |
### |
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=head1 NAME |
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Apache::lonacc - Cookie Based Access Handler |
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=head1 SYNOPSIS |
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Invoked (for various locations) by /etc/httpd/conf/srm.conf: |
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PerlAccessHandler Apache::lonacc |
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=head1 INTRODUCTION |
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This module enables cookie based authentication and is used |
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to control access for many different LON-CAPA URIs. |
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Whenever the client sends the cookie back to the server, |
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this cookie is handled by either lonacc.pm or loncacc.pm |
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(see srm.conf for what is invoked when). If |
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the cookie is missing or invalid, the user is re-challenged |
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for login information. |
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This is part of the LearningOnline Network with CAPA project |
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described at http://www.lon-capa.org. |
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=head1 HANDLER SUBROUTINE |
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This routine is called by Apache and mod_perl. |
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=over 4 |
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=item * |
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transfer profile into environment |
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=item * |
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load POST parameters |
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=item * |
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check access |
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=item * |
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if allowed, get symb, log, generate course statistics if applicable |
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=item * |
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otherwise return error |
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=item * |
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see if public resource |
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=item * |
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store attempted access |
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=back |
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=head1 NOTABLE SUBROUTINES |
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=over |
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=cut |
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package Apache::lonacc; |
package Apache::lonacc; |
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use strict; |
use strict; |
Line 45 use Apache::File;
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Line 102 use Apache::File;
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use Apache::lonnet; |
use Apache::lonnet; |
use Apache::loncommon(); |
use Apache::loncommon(); |
use Apache::lonlocal; |
use Apache::lonlocal; |
use CGI::Cookie(); |
use Apache::restrictedaccess(); |
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use Apache::blockedaccess(); |
use Fcntl qw(:flock); |
use Fcntl qw(:flock); |
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use LONCAPA; |
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sub cleanup { |
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my ($r)=@_; |
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if (! $r->is_initial_req()) { return DECLINED; } |
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&Apache::lonnet::save_cache(); |
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&Apache::lontexconvert::jsMath_reset(); |
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return OK; |
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} |
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sub goodbye { |
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my ($r)=@_; |
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&Apache::lonnet::goodbye(); |
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return DONE; |
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} |
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############################################### |
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sub get_posted_cgi { |
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my ($r,$fields) = @_; |
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my $buffer; |
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if ($r->header_in('Content-length')) { |
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$r->read($buffer,$r->header_in('Content-length'),0); |
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} |
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my $content_type = $r->header_in('Content-type'); |
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if ($content_type !~ m{^multipart/form-data}) { |
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my @pairs=split(/&/,$buffer); |
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my $pair; |
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foreach $pair (@pairs) { |
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my ($name,$value) = split(/=/,$pair); |
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$value =~ tr/+/ /; |
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$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
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$name =~ tr/+/ /; |
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$name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
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if (ref($fields) eq 'ARRAY') { |
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next if (!grep(/^\Q$name\E$/,@{$fields})); |
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} |
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&Apache::loncommon::add_to_env("form.$name",$value); |
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} |
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} else { |
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my ($contentsep) = ($content_type =~ /boundary=\"?([^\";,]+)\"?/); |
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my @lines = split (/\n/,$buffer); |
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my $name=''; |
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my $value=''; |
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my $fname=''; |
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my $fmime=''; |
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my $i; |
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for ($i=0;$i<=$#lines;$i++) { |
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if ($lines[$i]=~/^--\Q$contentsep\E/) { |
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if ($name) { |
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chomp($value); |
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if (ref($fields) eq 'ARRAY') { |
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next if (!grep(/^\Q$name\E$/,@{$fields})); |
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} |
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if ($fname) { |
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if ($env{'form.symb'} ne '') { |
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my $size = (length($value))/(1024.0 * 1024.0); |
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if (&upload_size_allowed($name,$size,$fname) eq 'ok') { |
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$env{"form.$name.filename"}=$fname; |
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$env{"form.$name.mimetype"}=$fmime; |
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&Apache::loncommon::add_to_env("form.$name",$value); |
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} |
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} else { |
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$env{"form.$name.filename"}=$fname; |
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$env{"form.$name.mimetype"}=$fmime; |
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&Apache::loncommon::add_to_env("form.$name",$value); |
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} |
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} else { |
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$value=~s/\s+$//s; |
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&Apache::loncommon::add_to_env("form.$name",$value); |
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} |
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} |
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if ($i<$#lines) { |
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$i++; |
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$lines[$i]=~ |
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/Content\-Disposition\:\s*form\-data\;\s*name\=\"([^\"]+)\"/i; |
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$name=$1; |
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$value=''; |
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if ($lines[$i]=~/filename\=\"([^\"]+)\"/i) { |
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$fname=$1; |
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if |
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($lines[$i+1]=~/Content\-Type\:\s*([\w\-\/]+)/i) { |
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$fmime=$1; |
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$i++; |
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} else { |
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$fmime=''; |
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} |
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} else { |
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$fname=''; |
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$fmime=''; |
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} |
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$i++; |
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} |
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} else { |
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$value.=$lines[$i]."\n"; |
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} |
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} |
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} |
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# |
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# Digested POSTed values |
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# |
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# Remember the way this was originally done (GET or POST) |
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# |
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$env{'request.method'}=$ENV{'REQUEST_METHOD'}; |
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# |
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# There may also be stuff in the query string |
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# Tell subsequent handlers that this was GET, not POST, so they can access query string. |
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# Also, unset POSTed content length to cover all tracks. |
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# |
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$r->method_number(M_GET); |
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$r->method('GET'); |
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$r->headers_in->unset('Content-length'); |
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} |
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=pod |
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=item upload_size_allowed() |
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Perform size checks for file uploads to essayresponse items in course context. |
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Add form.HWFILESIZE.$part_$id to %env with file size (MB) |
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If file exceeds maximum allowed size, add form.HWFILETOOBIG.$part_$id to %env. |
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=cut |
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sub upload_size_allowed { |
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my ($name,$size,$fname) = @_; |
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if ($name =~ /^HWFILE(\w+)$/) { |
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my $ident = $1; |
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my $item = 'HWFILESIZE'.$ident; |
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my $savesize = sprintf("%.6f",$size); |
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&Apache::loncommon::add_to_env("form.$item",$savesize); |
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my $maxsize= &Apache::lonnet::EXT("resource.$ident.maxfilesize"); |
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if (!$maxsize) { |
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$maxsize = 100.0; |
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} |
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if ($size > $maxsize) { |
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my $warn = 'HWFILETOOBIG'.$ident; |
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&Apache::loncommon::add_to_env("form.$warn",$fname); |
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return; |
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} |
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} |
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return 'ok'; |
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} |
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=pod |
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=item sso_login() |
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handle the case of the single sign on user, at this point $r->user |
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will be set and valid now need to find the loncapa user info and possibly |
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balance them |
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returns OK if it was a SSO and user was handled |
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undef if not SSO or no means to hanle the user |
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=cut |
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sub sso_login { |
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my ($r,$handle) = @_; |
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my $lonidsdir=$r->dir_config('lonIDsDir'); |
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if (!($r->user |
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&& (!defined($env{'user.name'}) && !defined($env{'user.domain'})) |
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&& ($handle eq ''))) { |
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# not an SSO case or already logged in |
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return undef; |
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} |
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my ($user) = ($r->user =~ m/([a-zA-Z0-9_\-@.]*)/); |
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my $domain = $r->dir_config('lonDefDomain'); |
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my $home=&Apache::lonnet::homeserver($user,$domain); |
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if ($home !~ /(con_lost|no_host|no_such_host)/) { |
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&Apache::lonnet::logthis(" SSO authorized user $user "); |
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if ($r->dir_config("lonBalancer") eq 'yes') { |
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# login but immeaditly go to switch server to find us a new |
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# machine |
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&Apache::lonauth::success($r,$user,$domain,$home,'noredirect'); |
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$env{'request.sso.login'} = 1; |
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if (defined($r->dir_config("lonSSOReloginServer"))) { |
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$env{'request.sso.reloginserver'} = |
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$r->dir_config('lonSSOReloginServer'); |
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} |
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$r->internal_redirect('/adm/switchserver'); |
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$r->set_handlers('PerlHandler'=> undef); |
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} else { |
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# need to login them in, so generate the need data that |
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# migrate expects to do login |
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my %info=('ip' => $r->connection->remote_ip(), |
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'domain' => $domain, |
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'username' => $user, |
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'server' => $r->dir_config('lonHostID'), |
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'sso.login' => 1 |
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); |
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if ($r->dir_config("ssodirecturl") == 1) { |
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$info{'origurl'} = $r->uri; |
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} |
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if (defined($r->dir_config("lonSSOReloginServer"))) { |
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$info{'sso.reloginserver'} = |
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$r->dir_config('lonSSOReloginServer'); |
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} |
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my $token = |
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&Apache::lonnet::tmpput(\%info, |
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$r->dir_config('lonHostID')); |
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$env{'form.token'} = $token; |
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$r->internal_redirect('/adm/migrateuser'); |
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$r->set_handlers('PerlHandler'=> undef); |
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} |
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return OK; |
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} elsif (defined($r->dir_config('lonSSOUserUnknownRedirect'))) { |
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&Apache::lonnet::logthis(" SSO authorized unknown user $user "); |
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$r->subprocess_env->set('SSOUserUnknown' => $user); |
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$r->subprocess_env->set('SSOUserDomain' => $domain); |
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my @cancreate; |
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my %domconfig = |
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&Apache::lonnet::get_dom('configuration',['usercreation'],$domain); |
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if (ref($domconfig{'usercreation'}) eq 'HASH') { |
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if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') { |
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if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') { |
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@cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}}; |
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} elsif (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') && |
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($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) { |
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@cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}); |
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} |
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} |
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} |
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if (grep(/^sso$/,@cancreate)) { |
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$r->internal_redirect('/adm/createaccount'); |
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} else { |
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$r->internal_redirect($r->dir_config('lonSSOUserUnknownRedirect')); |
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} |
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$r->set_handlers('PerlHandler'=> undef); |
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return OK; |
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} |
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return undef; |
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} |
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sub handler { |
sub handler { |
my $r = shift; |
my $r = shift; |
my $requrl=$r->uri; |
my $requrl=$r->uri; |
my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); |
if (&Apache::lonnet::is_domainimage($requrl)) { |
my $lonid=$cookies{'lonID'}; |
return OK; |
my $cookie; |
} |
if ($lonid) { |
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my $handle=$lonid->value; |
my $handle = &Apache::lonnet::check_for_valid_session($r); |
$handle=~s/\W//g; |
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my $lonidsdir=$r->dir_config('lonIDsDir'); |
my $result = &sso_login($r,$handle); |
if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) { |
if (defined($result)) { |
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return $result; |
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} |
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# ------------------------------------------------------ Initialize Environment |
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&Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); |
if ($r->dir_config("lonBalancer") eq 'yes') { |
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$r->set_handlers('PerlResponseHandler'=> |
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[\&Apache::switchserver::handler]); |
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} |
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if ($handle eq '') { |
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$r->log_reason("Cookie $handle not valid", $r->filename); |
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} elsif ($handle ne '') { |
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# ------------------------------------------------------ Initialize Environment |
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my $lonidsdir=$r->dir_config('lonIDsDir'); |
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&Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); |
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# --------------------------------------------------------- Initialize Language |
# --------------------------------------------------------- Initialize Language |
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&Apache::lonlocal::get_language_handle($r); |
&Apache::lonlocal::get_language_handle($r); |
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} |
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# -------------------------------------------------- Should be a valid user now |
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if ($env{'user.name'} ne '' && $env{'user.domain'} ne '') { |
# -------------------------------------------------------------- Resource State |
# -------------------------------------------------------------- Resource State |
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if ($requrl=~/^\/+(res|uploaded)\//) { |
if ($requrl=~/^\/+(res|uploaded)\//) { |
$ENV{'request.state'} = "published"; |
$env{'request.state'} = "published"; |
} else { |
} else { |
$ENV{'request.state'} = 'unknown'; |
$env{'request.state'} = 'unknown'; |
} |
} |
$ENV{'request.filename'} = $r->filename; |
$env{'request.filename'} = $r->filename; |
$ENV{'request.noversionuri'} = &Apache::lonnet::deversion($requrl); |
$env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl); |
# -------------------------------------------------------- Load POST parameters |
# -------------------------------------------------------- Load POST parameters |
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&Apache::loncommon::get_posted_cgi($r); |
&Apache::lonacc::get_posted_cgi($r); |
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# ---------------------------------------------------------------- Check access |
# ---------------------------------------------------------------- Check access |
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my $now = time; |
if ($requrl!~/^\/adm|public|prtspool\//) { |
if ($requrl !~ m{^/(?:adm|public|prtspool)/} |
my $access=&Apache::lonnet::allowed('bre',$requrl); |
|| $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) { |
if ($access eq '1') { |
my $access=&Apache::lonnet::allowed('bre',$requrl); |
$ENV{'user.error.msg'}="$requrl:bre:0:0:Choose Course"; |
if ($access eq '1') { |
return HTTP_NOT_ACCEPTABLE; |
$env{'user.error.msg'}="$requrl:bre:0:0:Choose Course"; |
} |
return HTTP_NOT_ACCEPTABLE; |
if (($access ne '2') && ($access ne 'F')) { |
} |
$ENV{'user.error.msg'}="$requrl:bre:1:1:Access Denied"; |
if ($access eq 'A') { |
return HTTP_NOT_ACCEPTABLE; |
&Apache::restrictedaccess::setup_handler($r); |
} |
return OK; |
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} |
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if ($access eq 'B') { |
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&Apache::blockedaccess::setup_handler($r); |
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return OK; |
} |
} |
if ($requrl =~ m|^/prtspool/|) { |
if (($access ne '2') && ($access ne 'F')) { |
my $start='/prtspool/'.$ENV{'user.name'}.'_'. |
$env{'user.error.msg'}="$requrl:bre:1:1:Access Denied"; |
$ENV{'user.domain'}; |
return HTTP_NOT_ACCEPTABLE; |
if ($requrl !~ /^\Q$start\E/) { |
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$ENV{'user.error.msg'}="$requrl:bre:1:1:Access Denied"; |
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return HTTP_NOT_ACCEPTABLE; |
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} |
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} |
} |
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} |
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if ($requrl =~ m|^/prtspool/|) { |
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my $start='/prtspool/'.$env{'user.name'}.'_'. |
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$env{'user.domain'}; |
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if ($requrl !~ /^\Q$start\E/) { |
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$env{'user.error.msg'}="$requrl:bre:1:1:Access Denied"; |
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return HTTP_NOT_ACCEPTABLE; |
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} |
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} |
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if ($requrl =~ m|^/zipspool/|) { |
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my $start='/zipspool/zipout/'.$env{'user.name'}.":". |
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$env{'user.domain'}; |
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if ($requrl !~ /^\Q$start\E/) { |
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$env{'user.error.msg'}="$requrl:bre:1:1:Access Denied"; |
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return HTTP_NOT_ACCEPTABLE; |
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} |
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} |
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if ($env{'user.name'} eq 'public' && |
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$env{'user.domain'} eq 'public' && |
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$requrl !~ m{^/+(res|public|uploaded)/} && |
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$requrl !~ m{^/adm/[^/]+/[^/]+/aboutme/portfolio$ }x && |
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$requrl !~ m{^/+adm/(help|logout|restrictedaccess|randomlabel\.png)}) { |
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$env{'request.querystring'}=$r->args; |
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$env{'request.firsturl'}=$requrl; |
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return FORBIDDEN; |
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} |
# ------------------------------------------------------------- This is allowed |
# ------------------------------------------------------------- This is allowed |
if ($ENV{'request.course.id'}) { |
if ($env{'request.course.id'}) { |
&Apache::lonnet::countacc($requrl); |
&Apache::lonnet::countacc($requrl); |
$requrl=~/\.(\w+)$/; |
$requrl=~/\.(\w+)$/; |
if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') || |
if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') || |
($requrl=~/^\/adm\/.*\/(aboutme|navmaps|smppg|bulletinboard)(\?|$)/) || |
($requrl=~/^\/adm\/.*\/(aboutme|navmaps|smppg|bulletinboard)(\?|$ )/x) || |
($requrl=~/^\/adm\/wrapper\//) || |
($requrl=~/^\/adm\/wrapper\//) || |
($requrl=~m|\.problem/smpedit$|) || |
($requrl=~m|^/adm/coursedocs/showdoc/|) || |
($requrl=~/^\/public\/.*\/syllabus$/)) { |
($requrl=~m|\.problem/smpedit$|) || |
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($requrl=~/^\/public\/.*\/syllabus$/)) { |
# ------------------------------------- This is serious stuff, get symb and log |
# ------------------------------------- This is serious stuff, get symb and log |
my $query=$r->args; |
my $query=$r->args; |
my $symb; |
my $symb; |
if ($query) { |
if ($query) { |
&Apache::loncommon::get_unprocessed_cgi($query,['symb']); |
&Apache::loncommon::get_unprocessed_cgi($query,['symb']); |
} |
} |
if ($ENV{'form.symb'}) { |
if ($env{'form.symb'}) { |
$symb=&Apache::lonnet::symbclean($ENV{'form.symb'}); |
$symb=&Apache::lonnet::symbclean($env{'form.symb'}); |
if ($requrl =~ m|^/adm/wrapper/|) { |
if ($requrl =~ m|^/adm/wrapper/| |
my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); |
|| $requrl =~ m|^/adm/coursedocs/showdoc/|) { |
&Apache::lonnet::symblist($map,$murl => $mid, |
my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); |
'last_known' => $murl); |
&Apache::lonnet::symblist($map,$murl => [$murl,$mid], |
} elsif ((&Apache::lonnet::symbverify($symb,$requrl)) || |
'last_known' =>[$murl,$mid]); |
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} elsif ((&Apache::lonnet::symbverify($symb,$requrl)) || |
(($requrl=~m|(.*)/smpedit$|) && |
(($requrl=~m|(.*)/smpedit$|) && |
&Apache::lonnet::symbverify($symb,$1))) { |
&Apache::lonnet::symbverify($symb,$1))) { |
my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); |
my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); |
&Apache::lonnet::symblist($map,$murl => $mid, |
&Apache::lonnet::symblist($map,$murl => [$murl,$mid], |
'last_known' => $murl); |
'last_known' =>[$murl,$mid]); |
} else { |
} else { |
$r->log_reason('Invalid symb for '.$requrl.': '. |
$r->log_reason('Invalid symb for '.$requrl.': '. |
$symb); |
$symb); |
$ENV{'user.error.msg'}= |
$env{'user.error.msg'}= |
"$requrl:bre:1:1:Invalid Access"; |
"$requrl:bre:1:1:Invalid Access"; |
return HTTP_NOT_ACCEPTABLE; |
return HTTP_NOT_ACCEPTABLE; |
} |
} |
} else { |
} else { |
$symb=&Apache::lonnet::symbread($requrl); |
$symb=&Apache::lonnet::symbread($requrl); |
if (&Apache::lonnet::is_on_map($requrl) && $symb && |
if (&Apache::lonnet::is_on_map($requrl) && $symb && |
!&Apache::lonnet::symbverify($symb,$requrl)) { |
!&Apache::lonnet::symbverify($symb,$requrl)) { |
$r->log_reason('Invalid symb for '.$requrl.': '.$symb); |
$r->log_reason('Invalid symb for '.$requrl.': '.$symb); |
$ENV{'user.error.msg'}= |
$env{'user.error.msg'}= |
"$requrl:bre:1:1:Invalid Access"; |
"$requrl:bre:1:1:Invalid Access"; |
return HTTP_NOT_ACCEPTABLE; |
return HTTP_NOT_ACCEPTABLE; |
} |
} |
if ($symb) { |
if ($symb) { |
my ($map,$mid,$murl)=split(/\_\_\_/,$symb); |
my ($map,$mid,$murl)= |
&Apache::lonnet::symblist($map,$murl => $mid, |
&Apache::lonnet::decode_symb($symb); |
'last_known' => $murl); |
&Apache::lonnet::symblist($map,$murl =>[$murl,$mid], |
|
'last_known' =>[$murl,$mid]); |
} |
} |
} |
} |
$ENV{'request.symb'}=$symb; |
$env{'request.symb'}=$symb; |
&Apache::lonnet::courseacclog($symb); |
&Apache::lonnet::courseacclog($symb); |
} else { |
} else { |
# ------------------------------------------------------- This is other content |
# ------------------------------------------------------- This is other content |
&Apache::lonnet::courseacclog($requrl); |
&Apache::lonnet::courseacclog($requrl); |
} |
} |
} |
} |
return OK; |
return OK; |
} else { |
|
$r->log_reason("Cookie $handle not valid", $r->filename) |
|
}; |
|
} |
} |
|
|
# -------------------------------------------- See if this is a public resource |
# -------------------------------------------- See if this is a public resource |
if ($requrl=~m|^/public/| |
if ($requrl=~m|^/+adm/+help/+|) { |
|| (&Apache::lonnet::metadata($requrl,'copyright') eq 'public')) { |
return OK; |
&Apache::lonnet::logthis('Granting public access: '.$requrl); |
} |
&Apache::loncommon::get_posted_cgi($r); |
# ------------------------------------ See if this is a viewable portfolio file |
$ENV{'user.name'}='public'; |
if (&Apache::lonnet::is_portfolio_url($requrl)) { |
$ENV{'user.domain'}='public'; |
my $access=&Apache::lonnet::allowed('bre',$requrl); |
$ENV{'request.state'} = "published"; |
if ($access eq 'A') { |
$ENV{'request.publicaccess'} = 1; |
&Apache::restrictedaccess::setup_handler($r); |
$ENV{'request.filename'} = $r->filename; |
return OK; |
my ($httpbrowser, $clientbrowser, $clientversion, |
} |
$clientmathml, $clientunicode, $clientos) = |
if (($access ne '2') && ($access ne 'F')) { |
&Apache::loncommon::decode_user_agent($r); |
$env{'user.error.msg'}="$requrl:bre:1:1:Access Denied"; |
$ENV{'browser.type'}=$clientbrowser; |
return HTTP_NOT_ACCEPTABLE; |
$ENV{'browser.version'}=$clientversion; |
} |
$ENV{'browser.mathml'}=$clientmathml; |
|
$ENV{'browser.unicode'}=$clientunicode; |
|
$ENV{'browser.os'}=$clientos; |
|
|
|
return OK; |
|
} |
} |
|
|
# -------------------------------------------------------------- Not authorized |
# -------------------------------------------------------------- Not authorized |
$requrl=~/\.(\w+)$/; |
$requrl=~/\.(\w+)$/; |
# if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') || |
# if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') || |
# ($requrl=~/^\/adm\/(roles|logout|email|menu|remote)/) || |
# ($requrl=~/^\/adm\/(roles|logout|email|menu|remote)/) || |
# ($requrl=~m|^/prtspool/|)) { |
# ($requrl=~m|^/prtspool/|)) { |
# -------------------------- Store where they wanted to go and get login screen |
# -------------------------- Store where they wanted to go and get login screen |
$ENV{'request.querystring'}=$r->args; |
$env{'request.querystring'}=$r->args; |
$ENV{'request.firsturl'}=$requrl; |
$env{'request.firsturl'}=$requrl; |
return FORBIDDEN; |
return FORBIDDEN; |
# } else { |
# } else { |
# --------------------------------------------------------------------- Goodbye |
# --------------------------------------------------------------------- Goodbye |
Line 203 sub handler {
|
Line 537 sub handler {
|
1; |
1; |
__END__ |
__END__ |
|
|
=head1 NAME |
=pod |
|
|
Apache::lonacc - Cookie Based Access Handler |
|
|
|
=head1 SYNOPSIS |
|
|
|
Invoked (for various locations) by /etc/httpd/conf/srm.conf: |
|
|
|
PerlAccessHandler Apache::lonacc |
|
|
|
=head1 INTRODUCTION |
|
|
|
This module enables cookie based authentication and is used |
|
to control access for many different LON-CAPA URIs. |
|
|
|
Whenever the client sends the cookie back to the server, |
|
this cookie is handled by either lonacc.pm or loncacc.pm |
|
(see srm.conf for what is invoked when). If |
|
the cookie is missing or invalid, the user is re-challenged |
|
for login information. |
|
|
|
This is part of the LearningOnline Network with CAPA project |
|
described at http://www.lon-capa.org. |
|
|
|
=head1 HANDLER SUBROUTINE |
|
|
|
This routine is called by Apache and mod_perl. |
|
|
|
=over 4 |
|
|
|
=item * |
|
|
|
transfer profile into environment |
|
|
|
=item * |
|
|
|
load POST parameters |
|
|
|
=item * |
|
|
|
check access |
|
|
|
=item * |
|
|
|
if allowed, get symb, log, generate course statistics if applicable |
|
|
|
=item * |
|
|
|
otherwise return error |
|
|
|
=item * |
|
|
|
see if public resource |
|
|
|
=item * |
|
|
|
store attempted access |
|
|
|
=back |
=back |
|
|
=cut |
=cut |
|
|