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LDAP.pm
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LDAP.pm
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# --
# Copyright (C) 2001-2021 OTRS AG, https://otrs.com/
# Copyright (C) 2021 Znuny GmbH, https://znuny.org/
# --
# This software comes with ABSOLUTELY NO WARRANTY. For details, see
# the enclosed file COPYING for license information (GPL). If you
# did not receive this file, see https://www.gnu.org/licenses/gpl-3.0.txt.
# --
package Kernel::System::Auth::Sync::LDAP;
use strict;
use warnings;
use Net::LDAP;
use Net::LDAP::Util qw(escape_filter_value);
use URI;
our @ObjectDependencies = (
'Kernel::Config',
'Kernel::System::Encode',
'Kernel::System::Group',
'Kernel::System::Log',
'Kernel::System::User',
);
sub new {
my ( $Type, %Param ) = @_;
# allocate new hash for object
my $Self = {};
bless( $Self, $Type );
# Debug 0=off 1=on
$Self->{Debug} = 0;
# get config object
my $ConfigObject = $Kernel::OM->Get('Kernel::Config');
# get ldap preferences
if ( !$ConfigObject->Get( 'AuthSyncModule::LDAP::Host' . $Param{Count} ) ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => "Need AuthSyncModule::LDAP::Host$Param{Count} in Kernel/Config.pm",
);
return;
}
if ( !defined $ConfigObject->Get( 'AuthSyncModule::LDAP::BaseDN' . $Param{Count} ) ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => "Need AuthSyncModule::LDAP::BaseDN$Param{Count} in Kernel/Config.pm",
);
return;
}
if ( !$ConfigObject->Get( 'AuthSyncModule::LDAP::UID' . $Param{Count} ) ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => "Need AuthSyncModule::LDAP::UID$Param{Count} in Kernel/Config.pm",
);
return;
}
$Self->{Count} = $Param{Count} || '';
$Self->{Die} = $ConfigObject->Get( 'AuthSyncModule::LDAP::Die' . $Param{Count} );
$Self->{Host} = $ConfigObject->Get( 'AuthSyncModule::LDAP::Host' . $Param{Count} );
$Self->{BaseDN} = $ConfigObject->Get( 'AuthSyncModule::LDAP::BaseDN' . $Param{Count} );
$Self->{UID} = $ConfigObject->Get( 'AuthSyncModule::LDAP::UID' . $Param{Count} );
$Self->{SearchUserDN} = $ConfigObject->Get( 'AuthSyncModule::LDAP::SearchUserDN' . $Param{Count} ) || '';
$Self->{SearchUserPw} = $ConfigObject->Get( 'AuthSyncModule::LDAP::SearchUserPw' . $Param{Count} ) || '';
$Self->{GroupDN} = $ConfigObject->Get( 'AuthSyncModule::LDAP::GroupDN' . $Param{Count} )
|| '';
$Self->{AccessAttr} = $ConfigObject->Get( 'AuthSyncModule::LDAP::AccessAttr' . $Param{Count} )
|| 'memberUid';
$Self->{UserAttr} = $ConfigObject->Get( 'AuthSyncModule::LDAP::UserAttr' . $Param{Count} )
|| 'DN';
$Self->{DestCharset} = $ConfigObject->Get( 'AuthSyncModule::LDAP::Charset' . $Param{Count} )
|| 'utf-8';
$Self->{NestedGroupSearch} = $ConfigObject->Get( 'AuthSyncModule::LDAP::NestedGroupSearch' . $Param{Count} );
# ldap filter always used
$Self->{AlwaysFilter} = $ConfigObject->Get( 'AuthSyncModule::LDAP::AlwaysFilter' . $Param{Count} ) || '';
# Net::LDAP new params
if ( $ConfigObject->Get( 'AuthSyncModule::LDAP::Params' . $Param{Count} ) ) {
$Self->{Params} = $ConfigObject->Get( 'AuthSyncModule::LDAP::Params' . $Param{Count} );
}
else {
$Self->{Params} = {};
}
return $Self;
}
sub Sync {
my ( $Self, %Param ) = @_;
# check needed stuff
if ( !$Param{User} ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => 'Need User!'
);
return;
}
$Param{User} = $Self->_ConvertTo( $Param{User}, 'utf-8' );
my $RemoteAddr = $ENV{REMOTE_ADDR} || 'Got no REMOTE_ADDR env!';
# remove leading and trailing spaces
$Param{User} =~ s{ \A \s* ( [^\s]+ ) \s* \z }{$1}xms;
# just in case for debug!
if ( $Self->{Debug} > 0 ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message => "User: '$Param{User}' tried to sync (REMOTE_ADDR: $RemoteAddr)",
);
}
# ldap connect and bind (maybe with SearchUserDN and SearchUserPw)
my $LDAP = Net::LDAP->new( $Self->{Host}, %{ $Self->{Params} } );
if ( !$LDAP ) {
if ( $Self->{Die} ) {
die "Can't connect to $Self->{Host}: $@";
}
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => "Can't connect to $Self->{Host}: $@",
);
return;
}
my $Result;
if ( $Self->{SearchUserDN} && $Self->{SearchUserPw} ) {
$Result = $LDAP->bind(
dn => $Self->{SearchUserDN},
password => $Self->{SearchUserPw}
);
}
else {
$Result = $LDAP->bind();
}
if ( $Result->code() ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => 'First bind failed! ' . $Result->error(),
);
return;
}
# build filter
my $Filter = "($Self->{UID}=" . escape_filter_value( $Param{User} ) . ')';
# prepare filter
if ( $Self->{AlwaysFilter} ) {
$Filter = "(&$Filter$Self->{AlwaysFilter})";
}
# perform user search
$Result = $LDAP->search(
base => $Self->{BaseDN},
filter => $Filter,
);
if ( $Result->code() ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => "Search failed! ($Self->{BaseDN}) filter='$Filter' " . $Result->error(),
);
return;
}
# get whole user dn
my $UserDN;
for my $Entry ( $Result->all_entries() ) {
$UserDN = $Entry->dn();
}
# log if there is no LDAP user entry
if ( !$UserDN ) {
# failed login note
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message => "User: $Param{User} sync failed, no LDAP entry found!"
. "BaseDN='$Self->{BaseDN}', Filter='$Filter', (REMOTE_ADDR: $RemoteAddr).",
);
# take down session
$LDAP->unbind();
return;
}
# check if user needs to be in a group!
if ( $Self->{AccessAttr} && $Self->{GroupDN} ) {
# just in case for debug
if ( $Self->{Debug} > 0 ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message => 'check for groupdn!',
);
}
# search if we're allowed to
my $Filter2 = '';
if ( $Self->{UserAttr} eq 'DN' ) {
$Filter2 = "($Self->{AccessAttr}=" . escape_filter_value($UserDN) . ')';
}
else {
$Filter2 = "($Self->{AccessAttr}=" . escape_filter_value( $Param{User} ) . ')';
}
my $Result2 = $LDAP->search(
base => $Self->{GroupDN},
filter => $Filter2,
attrs => ['1.1'],
);
if ( $Result2->code() ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => "Search failed! base='$Self->{GroupDN}', filter='$Filter2', "
. $Result2->error(),
);
# take down session
$LDAP->unbind();
$LDAP->disconnect();
return;
}
# extract it
my $GroupDN = '';
for my $Entry ( $Result2->all_entries() ) {
$GroupDN = $Entry->dn();
}
# log if there is no LDAP entry
if ( !$GroupDN ) {
# failed login note
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message => "User: $Param{User} sync failed, no LDAP group entry found"
. "GroupDN='$Self->{GroupDN}', Filter='$Filter2'! (REMOTE_ADDR: $RemoteAddr).",
);
# take down session
$LDAP->unbind();
$LDAP->disconnect();
return;
}
}
# get needed objects
my $UserObject = $Kernel::OM->Get('Kernel::System::User');
my $ConfigObject = $Kernel::OM->Get('Kernel::Config');
# get current user id
my $UserID = $UserObject->UserLookup(
UserLogin => $Param{User},
Silent => 1,
);
# system permissions
my %PermissionsEmpty =
map { $_ => 0 } @{ $ConfigObject->Get('System::Permission') };
# get group object
my $GroupObject = $Kernel::OM->Get('Kernel::System::Group');
# get system groups and create lookup
my %SystemGroups = $GroupObject->GroupList( Valid => 1 );
my %SystemGroupsByName = reverse %SystemGroups;
# get system roles and create lookup
my %SystemRoles = $GroupObject->RoleList( Valid => 1 );
my %SystemRolesByName = reverse %SystemRoles;
# sync user from ldap
my $UserSyncMap = $ConfigObject->Get( 'AuthSyncModule::LDAP::UserSyncMap' . $Self->{Count} );
if ($UserSyncMap) {
# get whole user dn
my %SyncUser;
for my $Entry ( $Result->all_entries() ) {
for my $Key ( sort keys %{$UserSyncMap} ) {
# detect old config setting
if ( $Key =~ m{ \A (?: Firstname | Lastname | Email ) }xms ) {
$Key = 'User' . $Key;
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => 'Old config setting detected, please use the new one '
. 'from Kernel/Config/Defaults.pm (User* has been added!).',
);
}
my $AttributeNames = $UserSyncMap->{$Key};
if ( ref $AttributeNames ne 'ARRAY' ) {
$AttributeNames = [$AttributeNames];
}
ATTRIBUTE_NAME:
for my $AttributeName ( @{$AttributeNames} ) {
if ( $AttributeName =~ /^_/ ) {
$SyncUser{$Key} = substr( $AttributeName, 1 );
last ATTRIBUTE_NAME;
}
elsif ( $Entry->get_value($AttributeName) ) {
$SyncUser{$Key} = $Entry->get_value($AttributeName);
last ATTRIBUTE_NAME;
}
}
# e. g. set utf-8 flag
$SyncUser{$Key} = $Self->_ConvertFrom(
$SyncUser{$Key},
'utf-8',
);
}
if ( $Entry->get_value('userPassword') ) {
$SyncUser{UserPw} = $Entry->get_value('userPassword');
# e. g. set utf-8 flag
$SyncUser{UserPw} = $Self->_ConvertFrom(
$SyncUser{UserPw},
'utf-8',
);
}
}
# add new user
if ( %SyncUser && !$UserID ) {
$UserID = $UserObject->UserAdd(
UserLogin => $Param{User},
%SyncUser, # Must contain other parameters required by UserAdd.
UserType => 'User',
ValidID => 1,
ChangeUserID => 1,
);
if ( !$UserID ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => "Can't create user '$Param{User}' ($UserDN) in RDBMS!",
);
# take down session
$LDAP->unbind();
return;
}
else {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message => "Initial data for '$Param{User}' ($UserDN) created in RDBMS.",
);
# sync initial groups
my $UserSyncInitialGroups = $ConfigObject->Get(
'AuthSyncModule::LDAP::UserSyncInitialGroups' . $Self->{Count}
);
if ($UserSyncInitialGroups) {
GROUP:
for my $Group ( @{$UserSyncInitialGroups} ) {
# only for valid groups
if ( !$SystemGroupsByName{$Group} ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message =>
"Invalid group '$Group' in "
. "'AuthSyncModule::LDAP::UserSyncInitialGroups"
. "$Self->{Count}'!",
);
next GROUP;
}
$GroupObject->PermissionGroupUserAdd(
GID => $SystemGroupsByName{$Group},
UID => $UserID,
Permission => {
rw => 1,
},
UserID => 1,
);
}
}
}
}
# update user attributes (only if changed)
elsif (%SyncUser) {
# get user data
my %UserData = $UserObject->GetUserData( User => $Param{User} );
# check for changes
my $AttributeChange;
ATTRIBUTE:
for my $Attribute ( sort keys %SyncUser ) {
# Treat undef and empty strings as equal.
my $SyncUserAttribute = $SyncUser{$Attribute} // '';
my $UserDataAttribute = $UserData{$Attribute} // '';
next ATTRIBUTE if $SyncUserAttribute eq $UserDataAttribute;
$AttributeChange = 1;
last ATTRIBUTE;
}
if ($AttributeChange) {
$UserObject->UserUpdate(
ValidID => $UserData{ValidID}, # May be not present in %SyncUser and is required by UserUpdate.
UserID => $UserID,
UserLogin => $Param{User},
%SyncUser, # Must contain other parameters required by UserUpdate.
UserType => 'User',
ChangeUserID => 1,
);
}
}
}
# variable to store group permissions from ldap
my %GroupPermissionsFromLDAP;
# sync ldap group 2 otrs group permissions
my $UserSyncGroupsDefinition = $ConfigObject->Get(
'AuthSyncModule::LDAP::UserSyncGroupsDefinition' . $Self->{Count}
);
if ($UserSyncGroupsDefinition) {
# read and remember groups from ldap
GROUPDN:
for my $GroupDN ( sort keys %{$UserSyncGroupsDefinition} ) {
# search if we are allowed to
my $Filter;
if ( $Self->{UserAttr} eq 'DN' ) {
$Filter = "($Self->{AccessAttr}=" . escape_filter_value($UserDN) . ')';
}
else {
$Filter = "($Self->{AccessAttr}=" . escape_filter_value( $Param{User} ) . ')';
}
my $Result = $LDAP->search(
base => $GroupDN,
filter => $Filter,
);
if ( $Result->code() ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => "Search failed! ($GroupDN) filter='$Filter' " . $Result->error(),
);
next GROUPDN;
}
# extract it
my $Valid;
for my $Entry ( $Result->all_entries() ) {
$Valid = $Entry->dn();
}
# only consider nested group search if we got no result
if (
!$Valid
&& $Self->{NestedGroupSearch}
)
{
# check if nested group search is ENABLED
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'debug',
Message => 'Performing an extended nested group search.',
);
my $NestedGroupResult = $Self->_NestedGroupSearch( $LDAP, $GroupDN, $UserDN );
# check if user was found with nested group search
if ($NestedGroupResult) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'info',
Message => "User: $Param{User} membership for group "
. "GroupDN='$GroupDN' confirmed through nested group search.",
);
# change the result to be valid
$Valid = $UserDN;
}
}
# log if there is no LDAP entry
if ( !$Valid ) {
# failed login note
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message => "User: $Param{User} not in "
. "GroupDN='$GroupDN', Filter='$Filter'! (REMOTE_ADDR: $RemoteAddr).",
);
next GROUPDN;
}
# remember group permissions
my %SyncGroups = %{ $UserSyncGroupsDefinition->{$GroupDN} };
SYNCGROUP:
for my $SyncGroup ( sort keys %SyncGroups ) {
# only for valid groups
if ( !$SystemGroupsByName{$SyncGroup} ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message =>
"Invalid group '$SyncGroup' in "
. "'AuthSyncModule::LDAP::UserSyncGroupsDefinition"
. "$Self->{Count}'!",
);
next SYNCGROUP;
}
# set/overwrite remembered permissions
# if rw permission exists, discard all other permissions
if ( $SyncGroups{$SyncGroup}->{rw} ) {
$GroupPermissionsFromLDAP{ $SystemGroupsByName{$SyncGroup} } = {
rw => 1,
};
next SYNCGROUP;
}
# remember permissions as provided
$GroupPermissionsFromLDAP{ $SystemGroupsByName{$SyncGroup} } = {
%PermissionsEmpty,
%{ $SyncGroups{$SyncGroup} },
};
}
}
}
# sync ldap attribute 2 otrs group permissions
my $UserSyncAttributeGroupsDefinition = $ConfigObject->Get(
'AuthSyncModule::LDAP::UserSyncAttributeGroupsDefinition' . $Self->{Count}
);
if ($UserSyncAttributeGroupsDefinition) {
# build filter
my $Filter = "($Self->{UID}=" . escape_filter_value( $Param{User} ) . ')';
# perform search
$Result = $LDAP->search(
base => $Self->{BaseDN},
filter => $Filter,
);
if ( $Result->code() ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => "Search failed! ($Self->{BaseDN}) filter='$Filter' " . $Result->error(),
);
}
else {
my %SyncConfig = %{$UserSyncAttributeGroupsDefinition};
for my $Attribute ( sort keys %SyncConfig ) {
my %AttributeValues = %{ $SyncConfig{$Attribute} };
ATTRIBUTEVALUE:
for my $AttributeValue ( sort keys %AttributeValues ) {
for my $Entry ( $Result->all_entries() ) {
# Check if configured value exists in values of group attribute
# If yes, add sync groups to the user
my $GotValue;
my @Values = $Entry->get_value($Attribute);
VALUE:
for my $Value (@Values) {
next VALUE if $Value !~ m{ \A \Q$AttributeValue\E \z }xmsi;
$GotValue = 1;
last VALUE;
}
next ATTRIBUTEVALUE if !$GotValue;
# remember group permissions
my %SyncGroups = %{ $AttributeValues{$AttributeValue} };
SYNCGROUP:
for my $SyncGroup ( sort keys %SyncGroups ) {
# only for valid groups
if ( !$SystemGroupsByName{$SyncGroup} ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message =>
"Invalid group '$SyncGroup' in "
. "'AuthSyncModule::LDAP::UserSyncAttributeGroupsDefinition"
. "$Self->{Count}'!",
);
next SYNCGROUP;
}
# set/overwrite remembered permissions
# if rw permission exists, discard all other permissions
if ( $SyncGroups{$SyncGroup}->{rw} ) {
$GroupPermissionsFromLDAP{ $SystemGroupsByName{$SyncGroup} } = {
rw => 1,
};
next SYNCGROUP;
}
# remember permissions as provided
$GroupPermissionsFromLDAP{ $SystemGroupsByName{$SyncGroup} } = {
%PermissionsEmpty,
%{ $SyncGroups{$SyncGroup} },
};
}
}
}
}
}
}
# Compare group permissions from LDAP with current user group permissions.
my %GroupPermissionsChanged;
PERMISSIONTYPE:
for my $PermissionType ( @{ $ConfigObject->Get('System::Permission') } ) {
# get current permission for type
my %GroupPermissions = $GroupObject->PermissionUserGroupGet(
UserID => $UserID,
Type => $PermissionType,
);
GROUPID:
for my $GroupID ( sort keys %SystemGroups ) {
my $OldPermission = $GroupPermissions{$GroupID} ? 1 : 0;
# Set the new permission (from LDAP) if exist, if not set it to a default value
# regularly 0 but it LDAP has rw permission set it to 1 as PermissionUserGroupGet()
# gets all system permissions to 1 if stored permission is rw.
my $NewPermission = $GroupPermissionsFromLDAP{$GroupID}->{$PermissionType}
|| $GroupPermissionsFromLDAP{$GroupID}->{rw} ? 1 : 0;
# Skip permission if is identical as in the DB
next GROUPID if $OldPermission == $NewPermission;
# Remember the LDAP permission if they are not identical as in the DB.
$GroupPermissionsChanged{$GroupID} = $GroupPermissionsFromLDAP{$GroupID};
}
}
# update changed group permissions
if (
%GroupPermissionsChanged
&& (
$UserSyncGroupsDefinition
|| $UserSyncAttributeGroupsDefinition
)
)
{
for my $GroupID ( sort keys %GroupPermissionsChanged ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message => "User: '$Param{User}' sync ldap group $SystemGroups{$GroupID}!",
);
$GroupObject->PermissionGroupUserAdd(
GID => $GroupID,
UID => $UserID,
Permission => $GroupPermissionsChanged{$GroupID} || \%PermissionsEmpty,
UserID => 1,
);
}
}
# variable to store role permissions from ldap
my %RolePermissionsFromLDAP;
# sync ldap group 2 otrs role permissions
my $UserSyncRolesDefinition = $ConfigObject->Get(
'AuthSyncModule::LDAP::UserSyncRolesDefinition' . $Self->{Count}
);
if ($UserSyncRolesDefinition) {
# read and remember roles from ldap
GROUPDN:
for my $GroupDN ( sort keys %{$UserSyncRolesDefinition} ) {
# search if we're allowed to
my $Filter;
if ( $Self->{UserAttr} eq 'DN' ) {
$Filter = "($Self->{AccessAttr}=" . escape_filter_value($UserDN) . ')';
}
else {
$Filter = "($Self->{AccessAttr}=" . escape_filter_value( $Param{User} ) . ')';
}
my $Result = $LDAP->search(
base => $GroupDN,
filter => $Filter,
);
if ( $Result->code() ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => "Search failed! ($GroupDN) filter='$Filter' " . $Result->error(),
);
next GROUPDN;
}
# extract it
my $Valid;
for my $Entry ( $Result->all_entries() ) {
$Valid = $Entry->dn();
}
# log if there is no LDAP entry
if ( !$Valid ) {
# failed login note
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message => "User: $Param{User} not in "
. "GroupDN='$GroupDN', Filter='$Filter'! (REMOTE_ADDR: $RemoteAddr).",
);
next GROUPDN;
}
# remember role permissions
my %SyncRoles = %{ $UserSyncRolesDefinition->{$GroupDN} };
SYNCROLE:
for my $SyncRole ( sort keys %SyncRoles ) {
# only for valid roles
if ( !$SystemRolesByName{$SyncRole} ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message =>
"Invalid role '$SyncRole' in "
. "'AuthSyncModule::LDAP::UserSyncRolesDefinition"
. "$Self->{Count}'!",
);
next SYNCROLE;
}
# set/overwrite remembered permissions
$RolePermissionsFromLDAP{ $SystemRolesByName{$SyncRole} } =
$SyncRoles{$SyncRole};
}
}
}
# sync ldap attribute 2 otrs role permissions
my $UserSyncAttributeRolesDefinition = $ConfigObject->Get(
'AuthSyncModule::LDAP::UserSyncAttributeRolesDefinition' . $Self->{Count}
);
if ($UserSyncAttributeRolesDefinition) {
# build filter
my $Filter = "($Self->{UID}=" . escape_filter_value( $Param{User} ) . ')';
# perform search
$Result = $LDAP->search(
base => $Self->{BaseDN},
filter => $Filter,
);
if ( $Result->code() ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => "Search failed! ($Self->{BaseDN}) filter='$Filter' " . $Result->error(),
);
}
else {
my %SyncConfig = %{$UserSyncAttributeRolesDefinition};
for my $Attribute ( sort keys %SyncConfig ) {
my %AttributeValues = %{ $SyncConfig{$Attribute} };
ATTRIBUTEVALUE:
for my $AttributeValue ( sort keys %AttributeValues ) {
for my $Entry ( $Result->all_entries() ) {
# Check if configured value exists in values of role attribute
# If yes, add sync roles to the user
my $GotValue;
my @Values = $Entry->get_value($Attribute);
VALUE:
for my $Value (@Values) {
next VALUE if $Value !~ m{ \A \Q$AttributeValue\E \z }xmsi;
$GotValue = 1;
last VALUE;
}
next ATTRIBUTEVALUE if !$GotValue;
# remember role permissions
my %SyncRoles = %{ $AttributeValues{$AttributeValue} };
SYNCROLE:
for my $SyncRole ( sort keys %SyncRoles ) {
# only for valid roles
if ( !$SystemRolesByName{$SyncRole} ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message =>
"Invalid role '$SyncRole' in "
. "'AuthSyncModule::LDAP::UserSyncAttributeRolesDefinition"
. "$Self->{Count}'!",
);
next SYNCROLE;
}
# set/overwrite remembered permissions
$RolePermissionsFromLDAP{ $SystemRolesByName{$SyncRole} } =
$SyncRoles{$SyncRole};
}
}
}
}
}
}
# compare role permissions from ldap with current user role permissions and update if necessary
if (
$UserSyncRolesDefinition
|| $UserSyncAttributeRolesDefinition
)
{
# get current user roles
my %UserRoles = $GroupObject->PermissionUserRoleGet(
UserID => $UserID,
);
ROLEID:
for my $RoleID ( sort keys %SystemRoles ) {
# if old and new permission for role matches, do nothing
if (
( $UserRoles{$RoleID} && $RolePermissionsFromLDAP{$RoleID} )
||
( !$UserRoles{$RoleID} && !$RolePermissionsFromLDAP{$RoleID} )
)
{
next ROLEID;
}
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'notice',
Message => "User: '$Param{User}' sync ldap role $SystemRoles{$RoleID}!",
);
$GroupObject->PermissionRoleUserAdd(
UID => $UserID,
RID => $RoleID,
Active => $RolePermissionsFromLDAP{$RoleID} || 0,
UserID => 1,
);
}
}
# take down session
$LDAP->unbind();
return $Param{User};
}
sub _ConvertTo {
my ( $Self, $Text, $Charset ) = @_;
return if !defined $Text;
# get encode object
my $EncodeObject = $Kernel::OM->Get('Kernel::System::Encode');
if ( !$Charset || !$Self->{DestCharset} ) {
$EncodeObject->EncodeInput( \$Text );
return $Text;
}
# convert from input charset ($Charset) to directory charset ($Self->{DestCharset})
return $EncodeObject->Convert(
Text => $Text,
From => $Charset,
To => $Self->{DestCharset},
);
}
sub _ConvertFrom {
my ( $Self, $Text, $Charset ) = @_;
return if !defined $Text;
# get encode object
my $EncodeObject = $Kernel::OM->Get('Kernel::System::Encode');
if ( !$Charset || !$Self->{DestCharset} ) {
$EncodeObject->EncodeInput( \$Text );
return $Text;
}
# convert from directory charset ($Self->{DestCharset}) to input charset ($Charset)
return $EncodeObject->Convert(
Text => $Text,
From => $Self->{DestCharset},
To => $Charset,
);
}
sub _NestedGroupSearch {
my ( $Self, $LDAP, $GroupDN, $UserDN ) = @_;
my $LogObject = $Kernel::OM->Get('Kernel::System::Log');
$LogObject->Log(
Priority => 'debug',
Message => "Nested group search to check if user $UserDN is a member of group $GroupDN.",
);
# protect against circular nesting (=infinite loop)
my $FoundGroups = {};
# call the actual search function
my $MemberFound = 0;
$Self->_NestedGroupSearchMemberFind( $LDAP, $GroupDN, $UserDN, $FoundGroups, \$MemberFound );
my $GroupCount = keys %{$FoundGroups};
$LogObject->Log(
Priority => 'debug',
Message => 'Nested group search remembered '
. "$GroupCount group objects to prevent an infinite loop.",
);
return $MemberFound;
}
sub _NestedGroupSearchMemberFind {
my ( $Self, $LDAP, $GroupDN, $UserDN, $FoundGroups, $MemberFound ) = @_;
my $LogObject = $Kernel::OM->Get('Kernel::System::Log');
# check for infinite loop
if ( $FoundGroups->{$GroupDN} ) {
$Kernel::OM->Get('Kernel::System::Log')->Log(
Priority => 'error',
Message => "Nested group search found circular nesting in "
. "$GroupDN (while searching for user $UserDN)",
);
return;
}
# check if the user is a member of this group
my $Result = $LDAP->compare(
$GroupDN,
attr => 'uniquemember',
value => $UserDN,
);
return if !$Result;
if ( $Result->code() == Net::LDAP::Constant::LDAP_COMPARE_TRUE() ) {
$LogObject->Log(
Priority => 'debug',
Message => "Nested group search result: $UserDN is a member of $GroupDN",
);
${$MemberFound} = 1;
return;
}
#
# not a member, continue search
#
# get list of group members
my @GroupAttributes = qw( uniquemember objectclass memberurl );
$Result = $LDAP->search(
base => $GroupDN,
filter => '(|(objectclass=groupOfUniqueNames)(objectclass=groupOfUrls))',
Attributes => \@GroupAttributes,
);
return if !$Result;
my $Entry = $Result->pop_entry();
return if !$Entry;
$LogObject->Log(
Priority => 'debug',
Message => "Nested group search in GroupDN " . $Entry->dn(),
);
# add group to list
# if it is seen again, it will be ignoreed to avoid an infinite loop
$FoundGroups->{ $Entry->dn() } = 1;
# search in dynamic groups
my $URLValues = $Entry->get_value( 'memberurl', asref => 1 ) // [];
URLVALUE:
for my $URLValue ( @{$URLValues} ) {
my $Uri = URI->new($URLValue);
my $Filter = $Uri->filter();
my @Attributes = $Uri->attributes();
$Result = $LDAP->search(
base => $UserDN,
scope => 'base',
filter => $Filter,
Attributes => \@Attributes,
);
next URLVALUE if !$Result;