/home/edulekha/studygroup.edulekha.com/ow_plugins/fbconnect/bol/service.php
<?php
/**
* This software is intended for use with Oxwall Free Community Software http://www.oxwall.org/ and is
* licensed under The BSD license.
* ---
* Copyright (c) 2011, Oxwall Foundation
* All rights reserved.
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this list of conditions and
* the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
* the following disclaimer in the documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Oxwall Foundation nor the names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* Facebook Connect Service
*
* @author Sergey Kambalin <greyexpert@gmail.com>
* @package ow_plugins.fbconnect.bol
* @since 1.0
*/
use Facebook\Exceptions\FacebookSDKException;
class FBCONNECT_BOL_Service extends FBCONNECT_BOL_ServiceBase
{
/**
* Facebook library url
*/
const FB_LIB_URL = '//connect.facebook.net/en_US/sdk.js';
private static $classInstance;
private $token;
/**
* Returns class instance
*
* @return FBCONNECT_BOL_Service
*/
public static function getInstance()
{
if ( null === self::$classInstance )
{
self::$classInstance = new self();
}
return self::$classInstance;
}
private $jsInitialized = false, $scope = 'email,public_profile';
/**
*
* @var FBCONNECT_BOL_FieldDao
*/
private $fieldDao;
/**
* Class constructor
*
*/
protected function __construct()
{
parent::__construct();
$this->fieldDao = FBCONNECT_BOL_FieldDao::getInstance();
}
/**
*
* @return Facebook
*/
public function getFaceBook()
{
$facebook = parent::getFaceBook();
return $facebook;
}
public function setAccessToken()
{
if ( !empty($_GET['accessToken']) )
{
$this->setToken($_GET['accessToken']);
return;
}
$helper = $this->getFacebook()->getRedirectLoginHelper();
try
{
$accessToken = $helper->getAccessToken();
$this->setToken($accessToken);
}
catch(Facebook\Exceptions\FacebookSDKException $e)
{
OW::getFeedback()->error(OW::getLanguage()->text('fbconnect', 'sdk_error') . ' ' . $e->getMessage());
$backUri = empty($_GET['backUri']) ? '' : urldecode($_GET['backUri']);
$backUrl = OW_URL_HOME . $backUri;
OW::getApplication()->redirect($backUrl);
}
}
public function getfbUser()
{
try
{
$response = $this->getFacebook()->get('/me?fields=name,email,gender', $this->token);
if ( empty($response->getGraphUser()->getId()) )
{
$helper = $this->getFaceBook()->getRedirectLoginHelper();
$permissions = ['email', 'public_profile'];
$loginUrl = $helper->getLoginUrl(OW::getRouter()->urlForRoute('fbconnect_login'), $permissions);
throw new RedirectException($loginUrl);
}
return $response->getGraphUser();
}
catch(Facebook\Exceptions\FacebookSDKException $e)
{
OW::getFeedback()->error(OW::getLanguage()->text('fbconnect', 'sdk_error') . ' ' . $e->getMessage());
$backUri = empty($_GET['backUri']) ? '' : urldecode($_GET['backUri']);
$backUrl = OW_URL_HOME . $backUri;
OW::getApplication()->redirect($backUrl);
}
return null;
}
public function setToken($token)
{
$this->token = $token;
}
public function getFacebookLoginUrl()
{
$helper = $this->getFaceBook()->getRedirectLoginHelper();
$permissions = ['email', 'public_profile'];
return $helper->getLoginUrl(OW::getRouter()->urlForRoute('fbconnect_login'), $permissions);
}
public function initializeJs($scope = null, $shareData = null )
{
if ($this->jsInitialized)
{
return;
}
$document = OW::getDocument();
$document->addScript(OW::getPluginManager()->getPlugin('fbconnect')->getStaticJsUrl() . 'fb.js');
$loginParams = array(
'scope' => $this->scope
);
$loginUrl = $this->getFacebookLoginUrl();
$uri = OW::getRequest()->getRequestUri();
$loginRouteUrl = OW::getRouter()->urlForRoute('fbconnect_login');
$synchronizeRouteUrl = OW::getRouter()->urlForRoute('fbconnect_synchronize');
$shareData['backUri'] = urlencode($uri);
// OW_FB js object definition
$options = array(
'onLoginUrl' => OW::getRequest()->buildUrlQueryString($loginRouteUrl, $shareData),
'onSynchronizeUrl' => OW::getRequest()->buildUrlQueryString($synchronizeRouteUrl, array('backUri' => urlencode($uri)))
);
$js = UTIL_JsGenerator::newInstance();
$js->newObject(array('window', 'OW_FB'), 'OW_FBConstructor', array(self::FB_LIB_URL, $loginParams, $options, $loginUrl));
$access = $this->getFaceBookAccessDetails();
$fbParams = array(
'appId' => $access->appId,
'status' => true, // check login status
'cookie' => true, // enable cookies to allow the server to access the session
'xfbml' => true, // parse XFBML
'channelURL' => OW::getRouter()->urlForRoute('fbconnect_xd_receiver'), // channel.html file
'oauth' => true, // enable OAuth 2.0
'version' => 'v2.10'
);
$js->callFunction(array('OW_FB', 'init'), array($fbParams));
$document->addOnloadScript((string) $js);
$this->jsInitialized = true;
}
public function fbGetFieldValueList($fbUserId, array $fields)
{
if (!$fbUserId)
{
throw new InvalidArgumentException('Invalid Argument $fbUserId');
}
if (empty($fields))
{
return array();
}
$fieldsForApi = array_diff($fields, array('pic_big', 'pic_square'));
$stringFieldsForApi = implode(",", $fieldsForApi);
$infoObject = $this->getFaceBook()->get("/" . $fbUserId . '?fields=' . $stringFieldsForApi, $this->token);
if ( empty($infoObject) )
{
return [];
}
$info = $infoObject->getDecodedBody();
$out = array();
foreach ( $fields as $field )
{
switch ($field)
{
case "pic_big":
$out[$field] = "http://graph.facebook.com/{$fbUserId}/picture?type=large&?return_ssl_resources=0&redirect=false";
break;
case "pic_square":
$out[$field] = "http://graph.facebook.com/{$fbUserId}/picture?type=large&return_ssl_resources=0&redirect=false";
break;
default:
$out[$field] = isset($info[$field]) ? $info[$field] : null;
}
}
return $out;
}
public function requestQuestionValueList($fbUserId, $questionNameList = null, $userId = null)
{
$fieldDtoList = empty($questionNameList)
? $this->fieldDao->findAll()
: $this->fieldDao->findListByQuestionList($questionNameList);
$converterList = array();
$fbFields = array();
foreach ($fieldDtoList as $fieldDto)
{
/* @var $fieldDto FBCONNECT_BOL_Field */
$allowedFBFields = $this->getPossibleFbFieldList($fieldDto->question);
if ( in_array($fieldDto->fbField, $allowedFBFields) )
{
$fbFields[$fieldDto->fbField] = $fieldDto->fbField;
}
}
$fbFields = array_values($fbFields);
$fbFieldValues = $this->fbGetFieldValueList($fbUserId, $fbFields);
$out = array();
foreach ($fieldDtoList as $fieldDto)
{
/* @var $fieldDto FBCONNECT_BOL_Field */
if ( empty($fbFieldValues[$fieldDto->fbField]) )
{
continue;
}
$class = $fieldDto->converter;
if (empty($converterList[$class]))
{
$converter = new $class($userId);
}
$out[$fieldDto->question] = $converter->convert($fieldDto->question, $fieldDto->fbField, $fbFieldValues[$fieldDto->fbField]);
}
return $out;
}
public function getOWQuestionDtoList()
{
$aliases = $this->findAliasList();
$questions = BOL_QuestionService::getInstance()->findAllQuestions();
$out = array();
foreach ($questions as $question)
{
/* @var $question BOL_Question */
$isText = in_array($question->presentation, array(
BOL_QuestionService::QUESTION_PRESENTATION_TEXT,
BOL_QuestionService::QUESTION_PRESENTATION_TEXTAREA,
BOL_QuestionService::QUESTION_PRESENTATION_URL
));
$hasAlias = !empty($aliases[$question->name]);
if ($isText || $hasAlias)
{
$out[] = $question;
}
}
return $out;
}
public function getPossibleFbFieldList($questionName = null)
{
switch ($questionName)
{
case 'username':
return array('name');
case 'email':
return array('email');
}
return array('first_name', 'middle_name', 'last_name', 'name', 'pic_square', 'pic_big');
}
public function assignQuestion($question, $fbField, $converter = 'FBCONNECT_FC_TextFieldConverter')
{
$fieldDto = $this->fieldDao->findByQuestion($question);
if ($fieldDto === null)
{
$fieldDto = new FBCONNECT_BOL_Field();
}
$fieldDto->question = $question;
$fieldDto->fbField = $fbField;
$fieldDto->converter = $converter;
$this->fieldDao->save($fieldDto);
}
public function unsetQuestion($question)
{
$fieldDto = $this->fieldDao->findByQuestion($question);
if ($fieldDto === null)
{
return;
}
$this->fieldDao->delete($fieldDto);
}
public function findAliasDtoList()
{
return $this->fieldDao->findAll();
}
public function findAliasList()
{
$out = array();
$aliases = $this->findAliasDtoList();
foreach($aliases as $alias)
{
$out[$alias->question] = $alias->fbField;
}
return $out;
}
}