version 1.116.2.2, 2008/12/31 20:22:47
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version 1.138, 2012/05/30 20:29:49
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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 89 sub get_posted_cgi {
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Line 156 sub get_posted_cgi {
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for ($i=0;$i<=$#lines;$i++) { |
for ($i=0;$i<=$#lines;$i++) { |
if ($lines[$i]=~/^--\Q$contentsep\E/) { |
if ($lines[$i]=~/^--\Q$contentsep\E/) { |
if ($name) { |
if ($name) { |
chomp($value); |
$value=~s/[\r\n]+$//; |
if (ref($fields) eq 'ARRAY') { |
if (ref($fields) eq 'ARRAY') { |
next if (!grep(/^\Q$name\E$/,@{$fields})); |
next if (!grep(/^\Q$name\E$/,@{$fields})); |
} |
} |
if ($fname) { |
if ($fname) { |
if ($env{'form.symb'} ne '') { |
if ($env{'form.symb'} ne '') { |
my $size = (length($value))/(1024.0 * 1024.0); |
my $size = (length($value))/(1024.0 * 1024.0); |
if (&upload_size_allowed($name,$size,$fname) eq 'ok') { |
if (&upload_size_allowed($name,$size,$fname) eq 'ok') { |
Line 102 sub get_posted_cgi {
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Line 169 sub get_posted_cgi {
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&Apache::loncommon::add_to_env("form.$name",$value); |
&Apache::loncommon::add_to_env("form.$name",$value); |
} |
} |
} else { |
} else { |
$env{"form.$name.filename"}=$fname; |
$env{"form.$name.filename"}=$fname; |
$env{"form.$name.mimetype"}=$fmime; |
$env{"form.$name.mimetype"}=$fmime; |
&Apache::loncommon::add_to_env("form.$name",$value); |
&Apache::loncommon::add_to_env("form.$name",$value); |
} |
} |
} else { |
} else { |
$value=~s/\s+$//s; |
$value=~s/\s+$//s; |
&Apache::loncommon::add_to_env("form.$name",$value); |
&Apache::loncommon::add_to_env("form.$name",$value); |
} |
} |
} |
} |
if ($i<$#lines) { |
if ($i<$#lines) { |
$i++; |
$i++; |
Line 155 sub get_posted_cgi {
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Line 222 sub get_posted_cgi {
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$r->headers_in->unset('Content-length'); |
$r->headers_in->unset('Content-length'); |
} |
} |
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# |
=pod |
# Perform size checks for file uploads to essayresponse items in course context. |
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# |
=item upload_size_allowed() |
# Add form.HWFILESIZE.$part_$id to %env with file size (MB) |
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# If file exceeds maximum allowed size, add form.HWFILETOOBIG.$part_$id to %env. |
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# |
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Perform size checks for file uploads to essayresponse items in course context. |
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Add form.HWFILESIZE.$part_$id to %env with file size (MB) |
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If file exceeds maximum allowed size, add form.HWFILETOOBIG.$part_$id to %env. |
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=cut |
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sub upload_size_allowed { |
sub upload_size_allowed { |
my ($name,$size,$fname) = @_; |
my ($name,$size,$fname) = @_; |
if ($name =~ /^HWFILE(\w+)$/) { |
if ($name =~ /^HWFILE(\w+)$/) { |
Line 182 sub upload_size_allowed {
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Line 253 sub upload_size_allowed {
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return 'ok'; |
return 'ok'; |
} |
} |
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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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# handle the case of the single sign on user, at this point $r->user |
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# will be set and valid now need to find the loncapa user info and possibly |
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# balance them |
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# returns OK if it was a SSO and user was handled |
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# undef if not SSO or no means to hanle the user |
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sub sso_login { |
sub sso_login { |
my ($r,$handle) = @_; |
my ($r,$handle) = @_; |
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Line 201 sub sso_login {
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Line 278 sub sso_login {
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my ($user) = ($r->user =~ m/([a-zA-Z0-9_\-@.]*)/); |
my ($user) = ($r->user =~ m/([a-zA-Z0-9_\-@.]*)/); |
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my $domain = $r->dir_config('lonDefDomain'); |
my $query = $r->args; |
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my %form; |
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if ($query) { |
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my @items = ('role','symb'); |
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&Apache::loncommon::get_unprocessed_cgi($query,\@items); |
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foreach my $item (@items) { |
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if (defined($env{'form.'.$item})) { |
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$form{$item} = $env{'form.'.$item}; |
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} |
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} |
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} |
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my $domain = $r->dir_config('lonSSOUserDomain'); |
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if ($domain eq '') { |
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$domain = $r->dir_config('lonDefDomain'); |
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} |
my $home=&Apache::lonnet::homeserver($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)/) { |
&Apache::lonnet::logthis(" SSO authorized user $user "); |
&Apache::lonnet::logthis(" SSO authorized user $user "); |
if ($r->dir_config("lonBalancer") eq 'yes') { |
my ($is_balancer,$otherserver) = |
# login but immeaditly go to switch server to find us a new |
&Apache::lonnet::check_loadbalancing($user,$domain); |
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if ($is_balancer) { |
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# login but immediately go to switch server to find us a new |
# machine |
# machine |
&Apache::lonauth::success($r,$user,$domain,$home,'noredirect'); |
&Apache::lonauth::success($r,$user,$domain,$home,'noredirect'); |
$env{'request.sso.login'} = 1; |
$env{'request.sso.login'} = 1; |
Line 214 sub sso_login {
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Line 308 sub sso_login {
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$env{'request.sso.reloginserver'} = |
$env{'request.sso.reloginserver'} = |
$r->dir_config('lonSSOReloginServer'); |
$r->dir_config('lonSSOReloginServer'); |
} |
} |
$r->internal_redirect('/adm/switchserver'); |
my $redirecturl = '/adm/switchserver'; |
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if ($otherserver ne '') { |
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$redirecturl .= '?otherserver='.$otherserver; |
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} |
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$r->internal_redirect($redirecturl); |
$r->set_handlers('PerlHandler'=> undef); |
$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 |
Line 225 sub sso_login {
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Line 323 sub sso_login {
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'server' => $r->dir_config('lonHostID'), |
'server' => $r->dir_config('lonHostID'), |
'sso.login' => 1 |
'sso.login' => 1 |
); |
); |
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foreach my $item ('role','symb') { |
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if (exists($form{$item})) { |
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$info{$item} = $form{$item}; |
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} |
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} |
if ($r->dir_config("ssodirecturl") == 1) { |
if ($r->dir_config("ssodirecturl") == 1) { |
$info{'origurl'} = $r->uri; |
$info{'origurl'} = $r->uri; |
} |
} |
Line 278 sub handler {
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Line 381 sub handler {
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if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) { |
if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) { |
return OK; |
return OK; |
} |
} |
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my $handle = &Apache::lonnet::check_for_valid_session($r); |
my $handle = &Apache::lonnet::check_for_valid_session($r); |
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my $result = &sso_login($r,$handle); |
my $result = &sso_login($r,$handle); |
Line 286 sub handler {
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Line 389 sub handler {
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return $result; |
return $result; |
} |
} |
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my ($is_balancer,$otherserver); |
if ($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 '') { |
if ($handle eq '') { |
$r->log_reason("Cookie $handle not valid", $r->filename); |
$r->log_reason("Cookie $handle not valid", $r->filename); |
Line 317 sub handler {
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Line 416 sub handler {
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} |
} |
$env{'request.filename'} = $r->filename; |
$env{'request.filename'} = $r->filename; |
$env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl); |
$env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl); |
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if ($requrl =~ m{^/adm/wrapper/ext/}) { |
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my $query = $r->args; |
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if ($query) { |
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my $preserved; |
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foreach my $pair (split(/&/,$query)) { |
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my ($name, $value) = split(/=/,$pair); |
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unless ($name eq 'symb') { |
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$preserved .= $pair.'&'; |
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} |
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} |
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$preserved =~ s/\&$//; |
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if ($preserved) { |
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$env{'request.external.querystring'} = $preserved; |
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} |
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} |
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} |
# -------------------------------------------------------- Load POST parameters |
# -------------------------------------------------------- Load POST parameters |
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&Apache::lonacc::get_posted_cgi($r); |
&Apache::lonacc::get_posted_cgi($r); |
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# ------------------------------------------------------ Check if load balancer |
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my $checkexempt; |
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if ($env{'user.loadbalexempt'} eq $r->dir_config('lonHostID')) { |
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if ($env{'user.loadbalcheck.time'} + 600 > time) { |
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$checkexempt = 1; |
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} |
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} |
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unless ($checkexempt) { |
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($is_balancer,$otherserver) = |
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&Apache::lonnet::check_loadbalancing($env{'user.name'}, |
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$env{'user.domain'}); |
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} |
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if ($is_balancer) { |
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$r->set_handlers('PerlResponseHandler'=> |
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[\&Apache::switchserver::handler]); |
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if ($otherserver ne '') { |
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$env{'form.otherserver'} = $otherserver; |
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} |
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} |
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# ---------------------------------------------------------------- Check access |
# ---------------------------------------------------------------- Check access |
my $now = time; |
my $now = time; |
if ($requrl !~ m{^/(?:adm|public|prtspool)/} |
if ($requrl !~ m{^/(?:adm|public|prtspool)/} |
Line 339 sub handler {
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Line 475 sub handler {
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return OK; |
return OK; |
} |
} |
if (($access ne '2') && ($access ne 'F')) { |
if (($access ne '2') && ($access ne 'F')) { |
$env{'user.error.msg'}="$requrl:bre:1:1:Access Denied"; |
if ($requrl =~ m{^/res/}) { |
return HTTP_NOT_ACCEPTABLE; |
$access = &Apache::lonnet::allowed('bro',$requrl); |
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if ($access ne 'F') { |
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if ($requrl eq '/res/lib/templates/simpleproblem.problem/smpedit') { |
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$access = &Apache::lonnet::allowed('bre','/res/lib/templates/simpleproblem.problem'); |
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if ($access ne 'F') { |
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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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} else { |
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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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} else { |
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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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} |
} |
} |
} |
} |
if ($requrl =~ m|^/prtspool/|) { |
if ($requrl =~ m|^/prtspool/|) { |
Line 363 sub handler {
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Line 515 sub handler {
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$env{'user.domain'} eq 'public' && |
$env{'user.domain'} eq 'public' && |
$requrl !~ m{^/+(res|public|uploaded)/} && |
$requrl !~ m{^/+(res|public|uploaded)/} && |
$requrl !~ m{^/adm/[^/]+/[^/]+/aboutme/portfolio$ }x && |
$requrl !~ m{^/adm/[^/]+/[^/]+/aboutme/portfolio$ }x && |
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$requrl !~ m{^/adm/blockingstatus/.*$} && |
$requrl !~ m{^/+adm/(help|logout|restrictedaccess|randomlabel\.png)}) { |
$requrl !~ m{^/+adm/(help|logout|restrictedaccess|randomlabel\.png)}) { |
$env{'request.querystring'}=$r->args; |
$env{'request.querystring'}=$r->args; |
$env{'request.firsturl'}=$requrl; |
$env{'request.firsturl'}=$requrl; |
Line 372 sub handler {
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Line 525 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) || |
($requrl=~/^\/adm\/.*\/(aboutme|smppg|bulletinboard)(\?|$ )/x) || |
($requrl=~/^\/adm\/wrapper\//) || |
($requrl=~/^\/adm\/wrapper\//) || |
($requrl=~m|^/adm/coursedocs/showdoc/|) || |
($requrl=~m|^/adm/coursedocs/showdoc/|) || |
($requrl=~m|\.problem/smpedit$|) || |
($requrl=~m|\.problem/smpedit$|) || |
($requrl=~/^\/public\/.*\/syllabus$/)) { |
($requrl=~/^\/public\/.*\/syllabus$/) || |
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($requrl=~/^\/adm\/(viewclasslist|navmaps)$/) || |
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($requrl=~/^\/adm\/.*\/aboutme\/portfolio(\?|$)/)) { |
# ------------------------------------- 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($query,['symb']); |
Line 393 sub handler {
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Line 548 sub handler {
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'last_known' =>[$murl,$mid]); |
'last_known' =>[$murl,$mid]); |
} elsif ((&Apache::lonnet::symbverify($symb,$requrl)) || |
} elsif ((&Apache::lonnet::symbverify($symb,$requrl)) || |
(($requrl=~m|(.*)/smpedit$|) && |
(($requrl=~m|(.*)/smpedit$|) && |
&Apache::lonnet::symbverify($symb,$1))) { |
&Apache::lonnet::symbverify($symb,$1)) || |
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(($requrl=~m|(.*/aboutme)/portfolio$|) && |
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&Apache::lonnet::symbverify($symb,$1))) { |
my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); |
my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); |
&Apache::lonnet::symblist($map,$murl => [$murl,$mid], |
&Apache::lonnet::symblist($map,$murl => [$murl,$mid], |
'last_known' =>[$murl,$mid]); |
'last_known' =>[$murl,$mid]); |
Line 405 sub handler {
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Line 562 sub handler {
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return HTTP_NOT_ACCEPTABLE; |
return HTTP_NOT_ACCEPTABLE; |
} |
} |
} else { |
} else { |
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if ($requrl=~m{^(/adm/.*/aboutme)/portfolio$}) { |
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$requrl = $1; |
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} |
$symb=&Apache::lonnet::symbread($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,$requrl)) { |
Line 426 sub handler {
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Line 586 sub handler {
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# ------------------------------------------------------- This is other content |
# ------------------------------------------------------- This is other content |
&Apache::lonnet::courseacclog($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; |
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} else { |
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my $defdom=$r->dir_config('lonDefDomain'); |
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($is_balancer,$otherserver) = |
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&Apache::lonnet::check_loadbalancing(undef,$defdom); |
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if ($is_balancer) { |
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$r->set_handlers('PerlResponseHandler'=> |
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[\&Apache::switchserver::handler]); |
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if ($otherserver ne '') { |
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$env{'form.otherserver'} = $otherserver; |
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} |
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} |
} |
} |
# -------------------------------------------- See if this is a public resource |
# -------------------------------------------- See if this is a public resource |
if ($requrl=~m|^/+adm/+help/+|) { |
if ($requrl=~m|^/+adm/+help/+|) { |
Line 464 sub handler {
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Line 647 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, |
|
this cookie is handled by either lonacc.pm or loncacc.pm |
|
(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. |
|
|
|
This is part of the LearningOnline Network with CAPA project |
|
described at http://www.lon-capa.org. |
|
|
|
=head1 HANDLER SUBROUTINE |
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|
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This routine is called by Apache and mod_perl. |
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|
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=over 4 |
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=item * |
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transfer profile into environment |
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|
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=item * |
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load POST parameters |
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|
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=item * |
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|
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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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