version 1.96, 2006/09/05 17:33:06
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version 1.125, 2009/04/14 23:52:07
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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 36 use Apache::lonnet;
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Line 103 use Apache::lonnet;
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use Apache::loncommon(); |
use Apache::loncommon(); |
use Apache::lonlocal; |
use Apache::lonlocal; |
use Apache::restrictedaccess(); |
use Apache::restrictedaccess(); |
use CGI::Cookie(); |
use Apache::blockedaccess(); |
use Fcntl qw(:flock); |
use Fcntl qw(:flock); |
use LONCAPA; |
use LONCAPA; |
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Line 57 sub goodbye {
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Line 124 sub goodbye {
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############################################### |
############################################### |
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sub get_posted_cgi { |
sub get_posted_cgi { |
my ($r) = @_; |
my ($r,$fields) = @_; |
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my $buffer; |
my $buffer; |
if ($r->header_in('Content-length')) { |
if ($r->header_in('Content-length')) { |
$r->read($buffer,$r->header_in('Content-length'),0); |
$r->read($buffer,$r->header_in('Content-length'),0); |
} |
} |
unless ($buffer=~/^(\-+\w+)\s+Content\-Disposition\:\s*form\-data/si) { |
my $content_type = $r->header_in('Content-type'); |
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if ($content_type !~ m{^multipart/form-data}) { |
my @pairs=split(/&/,$buffer); |
my @pairs=split(/&/,$buffer); |
my $pair; |
my $pair; |
foreach $pair (@pairs) { |
foreach $pair (@pairs) { |
Line 72 sub get_posted_cgi {
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Line 140 sub get_posted_cgi {
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$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
$name =~ tr/+/ /; |
$name =~ tr/+/ /; |
$name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
$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$name\E$/,@{$fields})); |
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} |
&Apache::loncommon::add_to_env("form.$name",$value); |
&Apache::loncommon::add_to_env("form.$name",$value); |
} |
} |
} else { |
} else { |
my $contentsep=$1; |
my ($contentsep) = ($content_type =~ /boundary=\"?([^\";,]+)\"?/); |
my @lines = split (/\n/,$buffer); |
my @lines = split (/\n/,$buffer); |
my $name=''; |
my $name=''; |
my $value=''; |
my $value=''; |
Line 83 sub get_posted_cgi {
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Line 154 sub get_posted_cgi {
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my $fmime=''; |
my $fmime=''; |
my $i; |
my $i; |
for ($i=0;$i<=$#lines;$i++) { |
for ($i=0;$i<=$#lines;$i++) { |
if ($lines[$i]=~/^$contentsep/) { |
if ($lines[$i]=~/^--\Q$contentsep\E/) { |
if ($name) { |
if ($name) { |
chomp($value); |
chomp($value); |
if ($fname) { |
if (ref($fields) eq 'ARRAY') { |
$env{"form.$name.filename"}=$fname; |
next if (!grep(/^\Q$name\E$/,@{$fields})); |
$env{"form.$name.mimetype"}=$fmime; |
} |
} else { |
if ($fname) { |
$value=~s/\s+$//s; |
if ($env{'form.symb'} ne '') { |
} |
my $size = (length($value))/(1024.0 * 1024.0); |
&Apache::loncommon::add_to_env("form.$name",$value); |
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",$value); |
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} |
} |
} |
if ($i<$#lines) { |
if ($i<$#lines) { |
$i++; |
$i++; |
Line 138 sub get_posted_cgi {
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Line 222 sub get_posted_cgi {
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$r->headers_in->unset('Content-length'); |
$r->headers_in->unset('Content-length'); |
} |
} |
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# handle the case of the single sign on user, at this point $r->user |
=pod |
# will be set and valid now need to find the loncapa user info and possibly |
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# balance them |
=item upload_size_allowed() |
# returns OK if it was a SSO and user was handled |
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# undef if not SSO or no means to hanle the user |
Perform size checks for file uploads to essayresponse items in course context. |
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Add form.HWFILESIZE.$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 = 10.0; # FIXME This should become a domain configuration. |
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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 $r->user |
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will be set and valid now need to find the loncapa user info and possibly |
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balance them |
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returns OK if it was a SSO and user was handled |
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undef if not SSO or no means to hanle the user |
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=cut |
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sub sso_login { |
sub sso_login { |
my ($r,$lonid,$handle) = @_; |
my ($r,$handle) = @_; |
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my $lonidsdir=$r->dir_config('lonIDsDir'); |
my $lonidsdir=$r->dir_config('lonIDsDir'); |
if (!($r->user |
if (!($r->user |
&& (!defined($env{'user.name'}) && !defined($env{'user.domain'})) |
&& (!defined($env{'user.name'}) && !defined($env{'user.domain'})) |
&& (!$lonid || !-e "$lonidsdir/$handle.id" || $handle eq ''))) { |
&& ($handle eq ''))) { |
# not an SSO case or already logged in |
# not an SSO case or already logged in |
return undef; |
return undef; |
} |
} |
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my ($user) = ($r->user =~ m/([a-zA-Z0-9_\-@.]*)/); |
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my $domain = $r->dir_config('lonDefDomain'); |
my $domain = $r->dir_config('lonDefDomain'); |
my $home=&Apache::lonnet::homeserver($r->user,$domain); |
my $home=&Apache::lonnet::homeserver($user,$domain); |
if ($home !~ /(con_lost|no_host|no_such_host)/) { |
if ($home !~ /(con_lost|no_host|no_such_host)/) { |
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&Apache::lonnet::logthis(" SSO authorized user $user "); |
if ($r->dir_config("lonBalancer") eq 'yes') { |
if ($r->dir_config("lonBalancer") eq 'yes') { |
# login but immeaditly go to switch server to find us a new |
# login but immeaditly go to switch server to find us a new |
# machine |
# machine |
&Apache::lonauth::success($r,$r->user,$domain,$home,'noredirect'); |
&Apache::lonauth::success($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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} |
$r->internal_redirect('/adm/switchserver'); |
$r->internal_redirect('/adm/switchserver'); |
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$r->set_handlers('PerlHandler'=> undef); |
} else { |
} else { |
# need to login them in, so generate the need data that |
# need to login them in, so generate the need data that |
# migrate expects to do login |
# migrate expects to do login |
my %info=('ip' => $r->connection->remote_ip(), |
my %info=('ip' => $r->connection->remote_ip(), |
'domain' => $domain, |
'domain' => $domain, |
'username' => $r->user, |
'username' => $user, |
'server' => $r->dir_config('lonHostID'), |
'server' => $r->dir_config('lonHostID'), |
'sso.login' => 1 |
'sso.login' => 1 |
); |
); |
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if ($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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} |
my $token = |
my $token = |
&Apache::lonnet::tmpput(\%info, |
&Apache::lonnet::tmpput(\%info, |
$r->dir_config('lonHostID')); |
$r->dir_config('lonHostID')); |
$env{'form.token'} = $token; |
$env{'form.token'} = $token; |
$r->internal_redirect('/adm/migrateuser'); |
$r->internal_redirect('/adm/migrateuser'); |
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$r->set_handlers('PerlHandler'=> undef); |
} |
} |
return OK; |
return OK; |
} elsif (defined($r->dir_config('lonSSOUserUnkownRedirect'))) { |
} elsif (defined($r->dir_config('lonSSOUserUnknownRedirect'))) { |
$r->internal_redirect($r->dir_config('lonSSOUserUnkownRedirect')); |
&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); |
return OK; |
return OK; |
} |
} |
return undef; |
return undef; |
Line 188 sub sso_login {
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Line 348 sub sso_login {
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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; |
} |
my $lonidsdir=$r->dir_config('lonIDsDir'); |
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my $handle; |
if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) { |
if ($lonid) { |
return OK; |
$handle=$lonid->value; |
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$handle=~s/\W//g; |
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} |
} |
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if (my $result = &sso_login($r,$lonid,$handle)) { |
my $handle = &Apache::lonnet::check_for_valid_session($r); |
return $result |
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my $result = &sso_login($r,$handle); |
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if (defined($result)) { |
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return $result; |
} |
} |
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Line 211 sub handler {
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Line 371 sub handler {
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if ($handle eq '') { |
if ($handle eq '') { |
$r->log_reason("Cookie $handle not valid", $r->filename); |
$r->log_reason("Cookie $handle not valid", $r->filename); |
} elsif ((-e "$lonidsdir/$handle.id") && ($handle ne '')) { |
} elsif ($handle ne '') { |
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# ------------------------------------------------------ Initialize Environment |
# ------------------------------------------------------ Initialize Environment |
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my $lonidsdir=$r->dir_config('lonIDsDir'); |
&Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); |
&Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); |
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# --------------------------------------------------------- Initialize Language |
# --------------------------------------------------------- Initialize Language |
Line 251 sub handler {
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Line 411 sub handler {
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&Apache::restrictedaccess::setup_handler($r); |
&Apache::restrictedaccess::setup_handler($r); |
return OK; |
return OK; |
} |
} |
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if ($access eq 'B') { |
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&Apache::blockedaccess::setup_handler($r); |
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return OK; |
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} |
if (($access ne '2') && ($access ne 'F')) { |
if (($access ne '2') && ($access ne 'F')) { |
$env{'user.error.msg'}="$requrl:bre:1:1:Access Denied"; |
$env{'user.error.msg'}="$requrl:bre:1:1:Access Denied"; |
return HTTP_NOT_ACCEPTABLE; |
return HTTP_NOT_ACCEPTABLE; |
Line 264 sub handler {
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Line 428 sub handler {
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return HTTP_NOT_ACCEPTABLE; |
return HTTP_NOT_ACCEPTABLE; |
} |
} |
} |
} |
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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'}="$requrl:bre:1:1:Access Denied"; |
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return HTTP_NOT_ACCEPTABLE; |
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} |
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} |
if ($env{'user.name'} eq 'public' && |
if ($env{'user.name'} eq 'public' && |
$env{'user.domain'} eq 'public' && |
$env{'user.domain'} eq 'public' && |
$requrl !~ m{^/+(res|public|uploaded)/} && |
$requrl !~ m{^/+(res|public|uploaded)/} && |
Line 277 sub handler {
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Line 449 sub handler {
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if ($env{'request.course.id'}) { |
if ($env{'request.course.id'}) { |
&Apache::lonnet::countacc($requrl); |
&Apache::lonnet::countacc($requrl); |
$requrl=~/\.(\w+)$/; |
$requrl=~/\.(\w+)$/; |
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my $query=$r->args; |
if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') || |
if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') || |
($requrl=~/^\/adm\/.*\/(aboutme|navmaps|smppg|bulletinboard)(\?|$ )/x) || |
($requrl=~/^\/adm\/.*\/(aboutme|navmaps|smppg|bulletinboard)(\?|$ )/x) || |
($requrl=~/^\/adm\/wrapper\//) || |
($requrl=~/^\/adm\/wrapper\//) || |
Line 284 sub handler {
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Line 457 sub handler {
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($requrl=~m|\.problem/smpedit$|) || |
($requrl=~m|\.problem/smpedit$|) || |
($requrl=~/^\/public\/.*\/syllabus$/)) { |
($requrl=~/^\/public\/.*\/syllabus$/)) { |
# ------------------------------------- This is serious stuff, get symb and log |
# ------------------------------------- This is serious stuff, get symb and log |
my $query=$r->args; |
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my $symb; |
my $symb; |
if ($query) { |
if ($query) { |
&Apache::loncommon::get_unprocessed_cgi($query,['symb']); |
&Apache::loncommon::get_unprocessed_cgi($query,['symb']); |
Line 331 sub handler {
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Line 503 sub handler {
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# ------------------------------------------------------- This is other content |
# ------------------------------------------------------- This is other content |
&Apache::lonnet::courseacclog($requrl); |
&Apache::lonnet::courseacclog($requrl); |
} |
} |
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my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};; |
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my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};; |
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if ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/docs/.+\.html?$}) { |
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if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) { |
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if ($query) { |
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&Apache::loncommon::get_unprocessed_cgi($query,['forceedit']); |
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if ($env{'form.forceedit'}) { |
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$env{'request.state'} = 'edit'; |
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} |
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} |
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} |
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} |
} |
} |
return OK; |
return OK; |
} |
} |
Line 369 sub handler {
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Line 553 sub handler {
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1; |
1; |
__END__ |
__END__ |
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=head1 NAME |
=pod |
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Apache::lonacc - Cookie Based Access Handler |
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=head1 SYNOPSIS |
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|
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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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|
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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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|
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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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|
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=head1 HANDLER SUBROUTINE |
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|
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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 |
=back |
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=cut |
=cut |
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