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// Copyright (c) 2019-2023 Tobias Junghans <tobydox@veyon.io>
// This file is part of Veyon - https://veyon.io
// SPDX-License-Identifier: LGPL-2.0-or-later
#include "LdapConfiguration.h"
#include "LdapDirectory.h"
#include "LdapNetworkObjectDirectory.h"
LdapNetworkObjectDirectory::LdapNetworkObjectDirectory( const LdapConfiguration& ldapConfiguration,
QObject* parent ) :
NetworkObjectDirectory( parent ),
m_ldapDirectory( ldapConfiguration )
{
}
NetworkObjectList LdapNetworkObjectDirectory::queryObjects( NetworkObject::Type type,
NetworkObject::Attribute attribute, const QVariant& value )
{
switch( type )
{
case NetworkObject::Type::Location: return queryLocations( attribute, value );
case NetworkObject::Type::Host: return queryHosts( attribute, value );
default: break;
}
return {};
}
NetworkObjectList LdapNetworkObjectDirectory::queryParents( const NetworkObject& object )
{
switch( object.type() )
{
case NetworkObject::Type::Host:
return { NetworkObject( NetworkObject::Type::Location,
m_ldapDirectory.locationsOfComputer( object.directoryAddress() ).value( 0 ) ) };
case NetworkObject::Type::Location:
return { NetworkObject( NetworkObject::Type::Root ) };
default:
break;
}
return { NetworkObject( NetworkObject::Type::None ) };
}
void LdapNetworkObjectDirectory::update()
{
const auto locations = m_ldapDirectory.computerLocations();
const NetworkObject rootObject( NetworkObject::Type::Root );
for( const auto& location : qAsConst( locations ) )
{
const NetworkObject locationObject( NetworkObject::Type::Location, location );
addOrUpdateObject( locationObject, rootObject );
updateLocation( locationObject );
}
removeObjects( NetworkObject( NetworkObject::Type::Root ), [locations]( const NetworkObject& object ) {
return object.type() == NetworkObject::Type::Location && locations.contains( object.name() ) == false; } );
}
void LdapNetworkObjectDirectory::updateLocation( const NetworkObject& locationObject )
{
const auto computers = m_ldapDirectory.computerLocationEntries( locationObject.name() );
for( const auto& computer : qAsConst( computers ) )
{
const auto hostObject = computerToObject( &m_ldapDirectory, computer );
if( hostObject.type() == NetworkObject::Type::Host )
{
addOrUpdateObject( hostObject, locationObject );
}
}
removeObjects( locationObject, [computers]( const NetworkObject& object ) {
return object.type() == NetworkObject::Type::Host && computers.contains( object.directoryAddress() ) == false; } );
}
NetworkObjectList LdapNetworkObjectDirectory::queryLocations( NetworkObject::Attribute attribute, const QVariant& value )
{
QString name;
switch( attribute )
{
case NetworkObject::Attribute::None:
break;
case NetworkObject::Attribute::Name:
name = value.toString();
break;
default:
vCritical() << "Can't query locations by attribute" << attribute;
return {};
}
const auto locations = m_ldapDirectory.computerLocations( name );
NetworkObjectList locationObjects;
locationObjects.reserve( locations.size() );
for( const auto& location : locations )
{
locationObjects.append( NetworkObject( NetworkObject::Type::Location, location ) );
}
return locationObjects;
}
NetworkObjectList LdapNetworkObjectDirectory::queryHosts( NetworkObject::Attribute attribute, const QVariant& value )
{
QStringList computers;
switch( attribute )
{
case NetworkObject::Attribute::None:
computers = m_ldapDirectory.computersByHostName( {} );
break;
case NetworkObject::Attribute::Name:
computers = m_ldapDirectory.computersByDisplayName( value.toString() );
break;
case NetworkObject::Attribute::HostAddress:
{
const auto hostName = m_ldapDirectory.hostToLdapFormat( value.toString() );
if( hostName.isEmpty() )
{
return {};
}
computers = m_ldapDirectory.computersByHostName( hostName );
break;
}
default:
vCritical() << "Can't query hosts by attribute" << attribute;
return {};
}
NetworkObjectList hostObjects;
hostObjects.reserve( computers.size() );
for( const auto& computer : qAsConst(computers) )
{
const auto hostObject = computerToObject( &m_ldapDirectory, computer );
if( hostObject.isValid() )
{
hostObjects.append( hostObject );
}
}
return hostObjects;
}
NetworkObject LdapNetworkObjectDirectory::computerToObject( LdapDirectory* directory, const QString& computerDn )
{
auto displayNameAttribute = directory->computerDisplayNameAttribute();
if( displayNameAttribute.isEmpty() )
{
displayNameAttribute = LdapClient::cn();
}
auto hostNameAttribute = directory->computerHostNameAttribute();
if( hostNameAttribute.isEmpty() )
{
hostNameAttribute = LdapClient::cn();
}
QStringList computerAttributes{ displayNameAttribute, hostNameAttribute };
auto macAddressAttribute = directory->computerMacAddressAttribute();
if( macAddressAttribute.isEmpty() == false )
{
computerAttributes.append( macAddressAttribute );
}
computerAttributes.removeDuplicates();
const auto computers = directory->client().queryObjects( computerDn, computerAttributes,
directory->computersFilter(), LdapClient::Scope::Base );
if( computers.isEmpty() == false )
{
const auto& computerDn = computers.firstKey();
const auto& computer = computers.first();
const auto displayName = computer[displayNameAttribute].value( 0 );
const auto hostName = computer[hostNameAttribute].value( 0 );
const auto macAddress = ( macAddressAttribute.isEmpty() == false ) ? computer[macAddressAttribute].value( 0 ) : QString();
return NetworkObject( NetworkObject::Type::Host, displayName, hostName, macAddress, computerDn );
}
return NetworkObject( NetworkObject::Type::None );
}
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