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@ -1,3 +1,289 @@ |
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## @file |
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# Auto-protected CGI machanism |
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## @class |
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# Base class for auto-protected CGI |
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package Lemonldap::NG::Handler::CGI; |
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use strict; |
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use Lemonldap::NG::Common::CGI; |
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use CGI::Cookie; |
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use MIME::Base64; |
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use base qw(Lemonldap::NG::Common::CGI); |
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use Lemonldap::NG::Handler::SharedConf qw(:all); |
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#link Lemonldap::NG::Handler::_CGI protected _handler |
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our $VERSION = '1.2.3'; |
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## @cmethod Lemonldap::NG::Handler::CGI new(hashRef args) |
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# Constructor. |
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# @param $args hash passed to Lemonldap::NG::Handler::_CGI object |
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# @return new object |
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sub new { |
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my $class = shift; |
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my $self = $class->SUPER::new() or $class->abort("Unable to build CGI"); |
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$Lemonldap::NG::Handler::_CGI::_cgi = $self; |
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unless ($Lemonldap::NG::Handler::_CGI::cookieName) { |
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Lemonldap::NG::Handler::_CGI->init(@_); |
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Lemonldap::NG::Handler::_CGI->initLocalStorage(@_); |
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} |
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unless ( eval { Lemonldap::NG::Handler::_CGI->testConf() } == OK ) { |
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if ( $_[0]->{noAbort} ) { |
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$self->{_noConf} = $@; |
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} |
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else { |
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$class->abort( "Unable to get configuration", $@ ); |
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} |
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} |
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# Arguments |
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my @args = splice @_; |
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if ( ref( $args[0] ) ) { |
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%$self = ( %$self, %{ $args[0] } ); |
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} |
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else { |
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%$self = ( %$self, @args ); |
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} |
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# Protection |
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if ( $self->{protection} and $self->{protection} ne 'none' ) { |
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$self->authenticate(); |
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# ACCOUNTING |
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if ( $self->{protection} =~ /^manager$/i ) { |
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$self->authorize() |
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or $self->abort( 'Forbidden', |
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"You don't have rights to access this page" ); |
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} |
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elsif ( $self->{protection} =~ /rule\s*:\s*(.*)\s*$/i ) { |
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my $rule = $1; |
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$rule =~ s/\$date/&POSIX::strftime("%Y%m%d%H%M%S",localtime())/e; |
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$rule =~ s/\$(\w+)/\$datas->{$1}/g; |
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$rule = 0 if ( $rule eq 'deny' ); |
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my $r; |
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unless ( $rule eq 'accept' |
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or Lemonldap::NG::Handler::_CGI->safe->reval($rule) ) |
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{ |
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$self->abort( 'Forbidden', |
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"You don't have rights to access this page" ); |
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} |
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} |
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elsif ( $self->{protection} !~ /^authenticate$/i ) { |
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$self->abort( |
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'Bad configuration', |
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"The rule <code>" . $self->{protection} . "</code> is not known" |
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); |
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} |
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} |
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return $self; |
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} |
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## @method boolean authenticate() |
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# Checks if user session is valid. |
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# Checks Lemonldap::NG cookie and search session in sessions database. |
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# If nothing is found, redirects the user to the Lemonldap::NG portal. |
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# @return boolean : true if authentication is good. Exit before else |
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sub authenticate { |
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my $self = shift; |
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$self->abort( |
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"Can't authenticate because configuration has not been loaded", |
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$self->{_noConf} ) |
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if ( $self->{_noConf} ); |
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my %cookies = fetch CGI::Cookie; |
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my $id; |
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unless ( $cookies{$cookieName} and $id = $cookies{$cookieName}->value ) { |
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return $self->goToPortal(); |
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} |
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unless ( $datas and $id eq $datas->{_session_id} ) { |
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unless ( $refLocalStorage and $datas = $refLocalStorage->get($id) ) { |
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my %h; |
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eval { tie %h, $globalStorage, $id, $globalStorageOptions; }; |
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if ($@) { |
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return $self->goToPortal(); |
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} |
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$datas->{$_} = $h{$_} foreach ( keys %h ); |
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if ($refLocalStorage) { |
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$refLocalStorage->set( $id, $datas, "10 minutes" ); |
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} |
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} |
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} |
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# Accounting : set user in apache logs |
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$self->setApacheUser( $datas->{$whatToTrace} ); |
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$ENV{REMOTE_USER} = $datas->{$whatToTrace}; |
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return 1; |
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} |
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## @method boolean authorize() |
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# Checks if user is authorized to access to the current request. |
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# Call Lemonldap::NG::Handler::_CGI::grant() function. |
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# @return boolean : true if user is granted |
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sub authorize { |
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my $self = shift; |
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return Lemonldap::NG::Handler::_CGI->grant( $ENV{REQUEST_URI} ); |
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} |
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## @method int testUri(string uri) |
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# Checks if user is authorized to access to $uri. |
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# Call Lemonldap::NG::Handler::_CGI::grant() function. |
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# @param $uri URI or URL to test |
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# @return int : 1 if user is granted, -1 if virtual host has no configuration, |
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# 0 if user isn't granted |
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sub testUri { |
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my $self = shift; |
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$self->abort( "Can't test URI because configuration has not been loaded", |
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$self->{_noConf} ) |
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if ( $self->{_noConf} ); |
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my $uri = shift; |
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my $host = |
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( $uri =~ s#^(?:https?://)?([^/]*)/#/# ) ? $1 : $ENV{SERVER_NAME}; |
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return -1 unless ( Lemonldap::NG::Handler::_CGI->vhostAvailable($host) ); |
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return Lemonldap::NG::Handler::_CGI->grant( $uri, $host ); |
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} |
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## @method hashRef user() |
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# @return hash of user datas |
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sub user { |
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return $datas; |
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} |
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## @method boolean group(string group) |
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# @param $group name of the Lemonldap::NG group to test |
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# @return boolean : true if user is in this group |
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sub group { |
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my ( $self, $group ) = splice @_; |
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return ( $datas->{groups} =~ /\b$group\b/ ); |
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} |
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## @method void goToPortal() |
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# Redirects the user to the portal and exit. |
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sub goToPortal { |
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my $self = shift; |
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my $tmp = encode_base64( $self->_uri, '' ); |
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print CGI::redirect( |
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-uri => Lemonldap::NG::Handler::_CGI->portal() . "?url=$tmp" ); |
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exit; |
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} |
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## @fn private string _uri() |
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# Builds current URL including "http://" and server name. |
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# @return URL_string |
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sub _uri { |
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my $vhost = $ENV{SERVER_NAME}; |
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my $portString = |
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$port->{$vhost} |
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|| $port->{_} |
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|| $ENV{SERVER_PORT}; |
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my $_https = |
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( defined( $https->{$vhost} ) ? $https->{$vhost} : $https->{_} ); |
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$portString = |
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( $_https && $portString == 443 ) ? '' |
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: ( !$_https && $portString == 80 ) ? '' |
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: ':' . $portString; |
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my $url = "http" |
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. ( $_https ? "s" : "" ) . "://" |
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. $vhost |
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. $portString |
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. $ENV{REQUEST_URI}; |
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return $url; |
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} |
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## @class |
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# Private class used by Lemonldap::NG::Handler::CGI for his internal handler. |
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package Lemonldap::NG::Handler::_CGI; |
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use strict; |
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use Lemonldap::NG::Handler::SharedConf qw(:locationRules :localStorage :traces); |
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use base qw(Lemonldap::NG::Handler::SharedConf); |
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our $_cgi; |
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## @method boolean childInit() |
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# Since this is not a real Apache handler, childs have not to be initialized. |
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# @return true |
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sub childInit { 1 } |
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## @method boolean purgeCache() |
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# Since this is not a real Apache handler, it must not purge the cache at starting. |
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# @return true |
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sub purgeCache { 1 } |
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## @method void lmLog(string message,string level) |
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# Replace lmLog by "print STDERR $message". |
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# @param $message Message to log |
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# @param $level error level (debug, info, warning or error) |
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sub lmLog { |
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my $class = shift; |
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$_cgi->lmLog(@_); |
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} |
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## @method boolean vhostAvailable(string vhost) |
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# Checks if $vhost has been declared in configuration |
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# @param $vhost Virtual Host to test |
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# @return boolean : true if $vhost is available |
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sub vhostAvailable { |
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my ( $self, $vhost ) = splice @_; |
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return defined( $defaultCondition->{$vhost} ); |
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} |
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## @method boolean grant(string uri, string vhost) |
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# Return true if user is granted to access. |
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# @param $uri URI string |
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# @param $vhost Optional virtual host (default current virtual host) |
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sub grant { |
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my ( $self, $uri, $vhost ) = splice @_; |
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$vhost ||= $ENV{SERVER_NAME}; |
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$apacheRequest = Lemonldap::NG::Apache::Request->new( |
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{ |
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uri => $uri, |
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hostname => $vhost, |
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args => '', |
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} |
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); |
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for ( my $i = 0 ; $i < $locationCount->{$vhost} ; $i++ ) { |
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if ( $uri =~ $locationRegexp->{$vhost}->[$i] ) { |
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return &{ $locationCondition->{$vhost}->[$i] }($datas); |
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} |
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} |
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unless ( $defaultCondition->{$vhost} ) { |
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$self->lmLog( |
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"User rejected because VirtualHost \"$vhost\" has no configuration", |
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'warn' |
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); |
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return 0; |
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} |
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return &{ $defaultCondition->{$vhost} }($datas); |
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} |
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package Lemonldap::NG::Apache::Request; |
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sub new { |
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my $class = shift; |
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my $self = shift; |
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return bless $self, $class; |
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} |
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sub hostname { |
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return $_[0]->{hostname}; |
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} |
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sub uri { |
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return $_[0]->{uri}; |
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} |
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sub args { |
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return $_[0]->{args}; |
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} |
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1; |
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__END__ |
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=head1 NAME |
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=encoding utf8 |
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