<?php

require_once(BASE_PATH . 'server/includes/core/class.encryptionstore.php');
require_once('zpushprops.php');

/**
 * PluginMDMModule Module
 */
class PluginMDMModule extends Module
{
	private $server = '';
	private $username = '';
	private $password = '';

	// content data
	const FOLDERUUID = 1;
	const FOLDERTYPE = 2;
	const FOLDERBACKENDID = 5;

	/**
	 * Constructor
	 * @param int $id unique id.
	 * @param array $data list of all actions.
	 */
	function __construct($id, $data)
	{
		parent::__construct($id, $data);

		$this->server = (PLUGIN_MDM_SERVER_SSL ? 'https://' : 'http://') . PLUGIN_MDM_SERVER;

		// Get the username and password from the Encryption store
		$encryptionStore = EncryptionStore::getInstance();
		$this->username = $encryptionStore->get('username');
		$this->password = $encryptionStore->get('password');

		$this->url = $this->server .'/Microsoft-Server-ActiveSync?Cmd=WebserviceDevice&DeviceId=webservice&DeviceType=webservice&User=' . $this->username;
	}

	/**
	 * Returns the version of the Z-Push server
	 * @return String
	 */
	function getServerVersion()
	{
		// Make a call to the service, so we can read the version
		// from the response headers
		try {
			$url = $this->server .'/Microsoft-Server-ActiveSync?Cmd=WebserviceInfo&DeviceId=webservice&DeviceType=webservice&User=' . $this->username;
			$client = $this->getSoapClient($url);
			return $client->About();
		} catch(Exception $e){}

		// If we can't find a version, we will simply return not available
		return dgettext('plugin_mdm', 'version not available');
	}

	/**
	 * Helper to setup a client.
	 */
	function getSoapClient($url='')
	{
		if ( empty($url) ){
			$url = $this->url;
		}

		return new SoapClient(null, array(
			'location' => $url,
			'uri' => $this->server,
			'trace' => 1,
			'login' => $this->username,
			'password' => $this->password
		));
	 }

	/**
	 * Function which calls the soap call to do a full resync
	 * @param int $deviceid of phone which has to be resynced
	 * @return json $response object contains the response of the soap request from Z-Push
	 */
	function resyncDevice($deviceid)
	{
		$client = $this->getSoapClient();
		return $client->ResyncDevice($deviceid);
	}

	/**
	 * Function which calls the wipeDevice soap call
	 * @param int $deviceid of phone which has to be wiped
	 * @param string $password user password
	 * @return json $response object contains the response of the soap request from Z-Push
	 */
	function wipeDevice($deviceid, $password)
	{
		if ($password == $this->password) {
			$client = $this->getSoapClient();
			return $client->WipeDevice($deviceid);
		} else {
			return false;
		}
	}

	/**
	 * function which calls the ListDeviceDetails soap call
	 * @return array $response array contains a list of devices connected to the users account
	 */
	function getDevices()
	{
		$client = $this->getSoapClient();
		return $client->ListDevicesDetails();
	}


	/**
	 * function which calls the wipeDevice soap call
	 * @param int $deviceid of phone which has to be wiped
	 * @return json $response object contains the response of the soap request from Z-Push
	 */
	function removeDevice($deviceid)
	{
		$client = $this->getSoapClient();
		return $client->RemoveDevice($deviceid);
	}

	/**
	 * Executes all the actions in the $data variable.
	 * @return boolean true on success of false on fialure.
	 */
	function execute()
	{
		foreach($this->data as $actionType => $actionData)
		{
			if(isset($actionType)) {
				try {
					switch($actionType)
					{
						case 'wipe':
							$this->wipeDevice($actionData['deviceid'], $actionData['password']);
							$this->addActionData('wipe', array(
								'type' => 3,
								'wipe' => $this->wipeDevice($actionData['deviceid'], $actionData['password'])
							));
							$GLOBALS['bus']->addData($this->getResponseData());
							break;
						case 'resync':
							$this->addActionData('resync', array(
								'type' => 3,
								'resync' => $this->resyncDevice($actionData['deviceid'])
							));
							$GLOBALS['bus']->addData($this->getResponseData());
							break;
						case 'remove':
							$this->addActionData('remove', array(
								'type' => 3,
								'remove' => $this->removeDevice($actionData['deviceid'])
							));
							$GLOBALS['bus']->addData($this->getResponseData());
							break;
						case 'list':
							$items = array();
							$date['page'] = array();

							$rawData = $this->getDevices();
							foreach($rawData as $device){
								array_push($items, array('props' => $this->getDeviceProps($device->data)));
							}
							$data['page']['start'] = 0;
							$data['page']['rowcount'] = count($rawData);
							$data['page']['totalrowcount'] = $data['page']['rowcount'];
							$data = array_merge($data, array('item' => $items));

							$this->addActionData('list', $data);
							$GLOBALS['bus']->addData($this->getResponseData());
							break;

						case 'open':
							$data = array();
							$rawData = $this->getDevices();
							foreach($rawData as $device){
								if($device->data['deviceid'] === $actionData['entryid']) {
									$data['props'] = $this->getDeviceProps($device->data);
									$data["sharedfolders"] = array("item" => $this->getAdditionalFolderList($actionData['entryid']));
								}
							}
							$item = array("item" => $data);
							$this->addActionData('item', $item);
							$GLOBALS['bus']->addData($this->getResponseData());
							break;
						default:
							$this->handleUnknownActionType($actionType);
					}
				} catch (SoapFault $fault) {
					$display_message = dgettext('plugin_mdm', 'Something went wrong.');
					if ($fault->faultcode === 'HTTP') {
						if ($fault->getMessage() === "Unauthorized") {
							$display_message = dgettext('plugin_mdm', 'Unable to connect to Z-Push Server. Unauthorized.');
						}
						if ($fault->getMessage() === "Could not connect to host") {
							$display_message = dgettext('plugin_mdm', 'Unable to connect to Z-Push Server. Could not connect to host.');
						}
						if ($fault->getMessage() === "Not Found") {
							$display_message = dgettext('plugin_mdm', 'Unable to connect to Z-Push Server. Not found.');
						}
					} else if ($fault->faultcode === "ERROR") {
						$display_message = dgettext('plugin_mdm', 'Device ID could not be found');
					}
					$this->sendFeedback(false, array("type" => ERROR_GENERAL, "info" => array('display_message' => $display_message)));
				}
				catch (Exception $e) {
					$this->sendFeedback(true, array("type" => ERROR_GENERAL, "info" => array('display_message' => dgettext('plugin_mdm', 'Something went wrong'))));
				}
			}
		}
 	}


	/**
	 * Function which is use to get device properties.
	 *
	 * @param array $device array of device properties
	 * @return array
	 */
	function getDeviceProps($device)
	{
		$item = array();
		$propsList = ['devicetype', 'deviceos', 'devicefriendlyname', 'useragent', 'asversion', 'firstsynctime',
			'lastsynctime', 'lastupdatetime', 'wipestatus', 'policyname', 'koeversion', 'koebuild', 'koebuilddate'];

		$item['entryid'] = $device['deviceid'];
		$item['message_class'] = "IPM.MDM";
		foreach ($propsList as $prop) {
			if (isset($device[$prop])) {
				$item[$prop] = $device[$prop];
			}
		}

		$item = array_merge($item, $this->getSyncFoldersProps($device));
		return $item;
	}

	/**
	 * Function which is use to gather some statistics about synchronized folders.
	 * @param array $device array of device props
	 * @return array $syncFoldersProps has list of properties related to synchronized folders
	 */
	function getSyncFoldersProps($device)
	{
		$contentData = $device['contentdata'];
		$folders = array_keys($contentData);
		$synchedFolderTypes = array();
		$synchronizedFolders = 0;
		$hierarchyCache = isset($device['hierarchycache']) ? $device['hierarchycache'] : false;

		foreach ($folders as $folderid) {
			if (isset($contentData[$folderid][self::FOLDERUUID]) || isset($device['hierarchyuuid'])) {
				$type = $contentData[$folderid][self::FOLDERTYPE];
				$name = "unknown";
				if ($hierarchyCache) {
					if (array_key_exists($folderid, $hierarchyCache->cacheById)) {
						$folder = $hierarchyCache->cacheById[$folderid];
					} else {
						$folder = $hierarchyCache->cacheByIdOld[$folderid];
					}
					if ($folder) {
						$name = $folder->displayname;
					}
				}

				$folderType = $this->getSyncFolderType($type, $name);

				if (isset($contentData[$folderid][self::FOLDERUUID])) {
					$synchedFolderTypes[$folderType]++;
				}
			}
		}
		$syncFoldersProps = array();
		foreach ($synchedFolderTypes as $key => $value) {
			$synchronizedFolders += $value;
			$syncFoldersProps[strtolower($key) . 'folder'] = $value;
		}
		$client = $this->getSoapClient();
		$items = $client->AdditionalFolderList($device['deviceid']);
		$syncFoldersProps['sharedfolders'] = count($items);
		$syncFoldersProps["shortfolderids"] = $device['hasfolderidmapping'] ? dgettext('plugin_mdm', "Yes") : dgettext('plugin_mdm', "No");
		$syncFoldersProps['synchronizedfolders'] = $synchronizedFolders + count($items);

		return $syncFoldersProps;
	}


	/**
	 * Function which is use to get general type like Mail,Calendar,Contacts,etc. from folder type.
	 * @param int $type foldertype for a folder already known to the mobile
	 * @param string $name folder name
	 * @return string general folder type
	 */
	function getSyncFolderType($type, $name)
	{
		$folderType = '';
		switch ($type) {
			case SYNC_FOLDER_TYPE_APPOINTMENT:
			case SYNC_FOLDER_TYPE_USER_APPOINTMENT:
				if (KOE_GAB_NAME != "" && $name == KOE_GAB_NAME) {
					$folderType = "GAB";

				} else {
					$folderType = "Calendars";
				}
				break;
			case SYNC_FOLDER_TYPE_CONTACT:
			case SYNC_FOLDER_TYPE_USER_CONTACT:
				$folderType = "Contacts";
				break;
			case SYNC_FOLDER_TYPE_TASK:
			case SYNC_FOLDER_TYPE_USER_TASK:
				$folderType = "Tasks";
				break;
			case SYNC_FOLDER_TYPE_NOTE:
			case SYNC_FOLDER_TYPE_USER_NOTE:
				$folderType = "Notes";
				break;
			default:
				$folderType = "Emails";
				break;
		}
		return $folderType;
	}

	/**
	 * Function which is use to get list of additional folders which was shared with given device
	 * @param string $devid device id
	 * @return array has list of properties related to shared folders
	 */
	function getAdditionalFolderList($devid)
	{
		$stores = $GLOBALS["mapisession"]->getAllMessageStores();
		$client = $this->getSoapClient();
		$items = $client->AdditionalFolderList($devid);
		$data = array();
		foreach ($items as $item)
		{
			foreach ($stores as $store)
			{
				try {
					$entryid = mapi_msgstore_entryidfromsourcekey($store, hex2bin($item->folderid));
				} catch (MAPIException $me) {
					continue;
				}
			}
			if (isset($entryid)) {
				$item->entryid = bin2hex($entryid);
			}
			array_push($data, array("props" => $item));
		}
		return $data;
	}
};
?>