471 lines
13 KiB
PHP
471 lines
13 KiB
PHP
<?php
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/**
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* @brief Facebook Promotion
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* @author <a href='https://www.invisioncommunity.com'>Invision Power Services, Inc.</a>
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* @copyright (c) Invision Power Services, Inc.
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* @license https://www.invisioncommunity.com/legal/standards/
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* @package Invision Community
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* @since 10 Feb 2017
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*/
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namespace IPS\Content\Promote;
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/* To prevent PHP errors (extending class does not exist) revealing path */
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if ( !\defined( '\IPS\SUITE_UNIQUE_KEY' ) )
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{
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header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
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exit;
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}
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/**
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* Facebook Promotion
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*/
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class _Facebook extends PromoteAbstract
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{
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/**
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* @brief Icon
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*/
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public static $icon = 'facebook';
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/**
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* @brief Default settings
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*/
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public $defaultSettings = array(
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'token' => NULL,
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'owner' => NULL,
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'page_name' => NULL, //
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'permissions' => NULL,
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'members' => NULL,
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'page' => NULL, //
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'tags' => NULL,
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'image' => NULL,
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'last_sync' => 0,
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'shareable' => array(),
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'member_token' => array(),
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);
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/**
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* Get image
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*
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* @return string
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*/
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public function getPhoto()
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{
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if ( ! $this->settings['image'] or $this->settings['last_sync'] < time() - 86400 )
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{
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/* Fetch again */
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$response = \IPS\Http\Url::external( "https://graph.facebook.com/" . $this->settings['page'] . "/picture?type=large&appsecret_proof=" . static::appSecretProof( $this->settings['token'] ) )->request()->get();
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$extension = str_replace( 'image/', '', $response->httpHeaders['Content-Type'] );
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$newFile = \IPS\File::create( 'core_Promote', 'facebook_' . $this->settings['page'] . '.' . $extension, (string) $response, NULL, FALSE, NULL, FALSE );
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$this->saveSettings( array( 'image' => (string) $newFile->url, 'last_sync' => time() ) );
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}
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return $this->settings['image'];
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}
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/**
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* Get name
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*
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* @param string|NULL $serviceId Specific page/group ID
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* @return string
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*/
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public function getName( $serviceId=NULL )
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{
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if ( $serviceId )
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{
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$realId = mb_substr( $serviceId, 2 );
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if ( mb_substr( $serviceId, 0, 2 ) == 'p_' )
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{
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return isset( $this->settings['shareable']['pages'][ $realId ]['name'] ) ? $this->settings['shareable']['pages'][ $realId ]['name'] : \IPS\Member::loggedIn()->language()->addToStack( 'promote_service_name_missing' );
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}
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else
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{
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return isset( $this->settings['shareable']['groups'][ $realId ]['name'] ) ? $this->settings['shareable']['groups'][ $realId ]['name'] : \IPS\Member::loggedIn()->language()->addToStack( 'promote_service_name_missing' );
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}
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}
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}
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/**
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* Check publish permissions
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*
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* @return boolean
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*/
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public function canPostToPage()
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{
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$facebook = static::getLoginHandler();
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if ( $facebook === NULL )
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{
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return FALSE;
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}
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$authorizedScopes = $facebook->authorizedScopes( $this->member );
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if( $authorizedScopes === NULL )
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{
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return FALSE;
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}
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foreach( array( 'manage_pages', 'publish_pages' ) as $perm )
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{
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if ( ! \in_array( $perm, $authorizedScopes ) )
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{
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return FALSE;
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}
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}
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return TRUE;
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}
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/**
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* Create the appSecretProof key
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*
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* @param string $token The Token
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* @return string
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*/
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protected static function appSecretProof( $token )
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{
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$facebook = static::getLoginHandler();
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return hash_hmac( 'sha256', $token, $facebook->settings['client_secret'] );
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}
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/**
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* Get form elements for this share service
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*
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* @param string $text Text for the text entry
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* @param string $link Short or full link (short when available)
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* @param string $content Additional text content (usually a comment, or the item content)
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*
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* @return array of form elements
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*/
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public function form( $text, $link=null, $content=null )
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{
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$shareable = array();
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$_text = '';
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if ( $this->promote and $this->promote->id )
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{
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$_text = $text;
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if ( isset( $this->promote->form_data['facebook'] ) AND $settings = $this->promote->form_data['facebook'] )
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{
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$shareable = $settings['shareable'];
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}
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}
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else
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{
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if ( \count( $this->settings['tags'] ) )
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{
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$_text .= '#' . implode( ' #', $this->settings['tags'] );
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}
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}
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$names = array();
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$options = array();
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if ( isset( $this->settings['shareable'] ) )
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{
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if( isset( $this->settings['shareable']['pages'] ) )
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{
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foreach( $this->settings['shareable']['pages'] as $id => $data )
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{
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$options[ 'p_' . $id ] = \IPS\Member::loggedIn()->language()->addToStack( 'promote_facebook_page_prefix', FALSE, array( 'sprintf' => array( $data['name'] ) ) );
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$names[] = $data['name'];
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}
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}
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if( isset( $this->settings['shareable']['groups'] ) )
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{
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foreach( $this->settings['shareable']['groups'] as $id => $data )
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{
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$options[ 'g_' . $id ] = \IPS\Member::loggedIn()->language()->addToStack( 'promote_facebook_group_prefix', FALSE, array( 'sprintf' => array( $data['name'] ) ) );
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$names[] = $data['name'];
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}
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}
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}
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return array(
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new \IPS\Helpers\Form\TextArea( 'promote_social_content_facebook', $_text, FALSE, array( 'maxLength' => 2000, 'rows' => 10 ) ),
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new \IPS\Helpers\Form\CheckboxSet( 'promote_facebook_shareable', $shareable, FALSE, array( 'options' => $options ) )
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);
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}
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/**
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* Allow for any extra processing
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*
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* @param array $values Values from the form isn't it though
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* @return mixed
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*/
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public function processPromoteForm( $values )
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{
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if ( isset( $values['promote_facebook_shareable'] ) )
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{
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return array( 'shareable' => $values['promote_facebook_shareable'] );
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}
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return NULL;
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}
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/**
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* Post to Facebook
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*
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* @param \IPS\core\Promote $promote Promote Object
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* @return void
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*/
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public function post( $promote )
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{
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$photos = $promote->imageObjects();
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$settings = $promote->form_data['facebook'];
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$shareable = $this->settings['shareable'];
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$responses = array();
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foreach( $settings['shareable'] as $id )
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{
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$feedId = mb_substr( $id, 2 );
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if ( mb_substr( $id, 0, 2 ) == 'p_' )
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{
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$responses[ $id ][] = $this->_post( $promote, $photos, $feedId, $shareable['pages'][ $feedId ]['token'] );
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}
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else
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{
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$responses[ $id ][] = $this->_post( $promote, $photos, $feedId, isset( $this->settings['member_token']['access_token'] ) ? $this->settings['member_token']['access_token'] : $this->settings['token'] );
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}
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}
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return $responses;
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}
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/**
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* Actually post the post, but not post post as that would be too late
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*
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* @param \IPS\core\Promote $promote Promote Object
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* @param array $photos The photos
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* @param int $feedId The feed ID to post to. Honestly, it's not rocket science.
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* @param string $token I'll give you one guess. Does anyone actually read this?
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* @return stuff
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*/
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protected function _post( $promote, $photos, $feedId, $token=NULL )
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{
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/* Get the last 20 items to see if we have a duplicate */
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try
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{
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$items = \IPS\Http\Url::external( "https://graph.facebook.com/" . $feedId . "/feed" )->setQueryString( $this->_addToken( array(
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'limit' => 20
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), $token ) )->request()->get()->decodeJson();
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if ( isset( $items['data'] ) )
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{
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foreach( $items['data'] as $item )
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{
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$time = new \IPS\DateTime( ( isset( $item['created_time'] ) ? $item['created_time'] : $item['updated_time' ] ) );
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$now = new \IPS\DateTime();
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/* Only look back past the last 30 mins */
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if ( \intval( $now->diff( $time )->format('%i') ) > 30 )
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{
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continue;
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}
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if ( preg_replace( '#\s{1,}#', " ", $promote->text['facebook'] ) == preg_replace( '#\s{1,}#', " ", $item['message'] ) )
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{
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/* Duplicate */
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return $item['id'];
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}
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}
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}
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}
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catch( \Exception $e )
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{
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\IPS\Log::log( $e, 'facebook' );
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}
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if ( ! $photos or ( \is_array( $photos ) and \count( $photos ) === 1 ) )
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{
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/* Simple message */
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try
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{
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if ( $photos )
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{
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$thePhoto = array_pop( $photos );
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$response = \IPS\Http\Url::external( "https://graph.facebook.com/" . $feedId . "/photos" )->request()->post( $this->_addToken( array(
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'message' => $promote->text['facebook'],
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'url' => (string) $this->returnUrlWithProtocol( $thePhoto->url ),
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'link' => (string) $promote->short_link
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), $token ) )->decodeJson();
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}
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else
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{
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$response = \IPS\Http\Url::external( "https://graph.facebook.com/" . $feedId . "/feed" )->request()->post( $this->_addToken( array(
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'message' => $promote->text['facebook'],
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'link' => (string) $promote->short_link
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), $token ) )->decodeJson();
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}
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}
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catch( \Exception $e )
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{
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\IPS\Log::log( $e, 'facebook' );
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throw new \InvalidArgumentException( \IPS\Member::loggedIn()->language()->addToStack('facebook_publish_exception') );
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}
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if ( isset( $response['id'] ) )
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{
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return $response['id'];
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}
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else
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{
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if ( isset( $response['error'] ) )
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{
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\IPS\Log::log( $response['error']['message'], 'facebook' );
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}
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throw new \InvalidArgumentException( \IPS\Member::loggedIn()->language()->addToStack('facebook_publish_exception') );
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}
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}
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else
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{
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/* We have multiple photos so we first need to create an album, and then upload into that */
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try
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{
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/* The item may be a comment, which uses a language string for objectTitle - make sure that is parsed before sending */
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$title = $promote->objectTitle;
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\IPS\Member::loggedIn()->language()->parseOutputForDisplay( $title );
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$response = \IPS\Http\Url::external( "https://graph.facebook.com/" . $feedId . "/albums" )->request()->post( $this->_addToken( array(
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'name' => $title,
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), $token ) )->decodeJson();
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if ( ! isset( $response['id'] ) )
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{
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throw new \InvalidArgumentException('Could not create album');
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}
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$newAlbumId = $response['id'];
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foreach( $photos as $photo )
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{
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$response = \IPS\Http\Url::external( "https://graph.facebook.com/" . $newAlbumId . "/photos" )->request()->post( $this->_addToken( array(
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'message' => $promote->text['facebook'],
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'url' => (string) $this->returnUrlWithProtocol( $photo->url ),
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), $token ) )->decodeJson();
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}
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}
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catch( \Exception $e )
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{
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\IPS\Log::log( $e, 'facebook' );
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throw new \InvalidArgumentException( \IPS\Member::loggedIn()->language()->get('facebook_publish_exception') );
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}
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if ( isset( $response['id'] ) )
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{
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return $response['id'];
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}
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else
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{
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throw new \InvalidArgumentException( \IPS\Member::loggedIn()->language()->addToStack('facebook_publish_exception') );
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}
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}
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}
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/**
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* Adds 'access_token' to query string if token defined (it is for pages, but not for groups
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*
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* @param array $values The values of the array
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* @param string|NULL $token The token obvs
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* @return array
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*/
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protected function _addToken( $values, $token )
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{
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return ( $token ) ? array_merge( $values, array( 'access_token' => $token, 'appsecret_proof' => static::appSecretProof( $token ) ) ) : $values;
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}
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/**
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* Return the published URL
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*
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* @param array $data Data returned from a successful POST
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* @return \IPS\Http\Url
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* @throws \InvalidArgumentException
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*/
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public function getUrl( $data )
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{
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if ( \is_array( $data ) and \count( $data ) )
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{
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/* Get a random URL from the many it was shared to */
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$array = $data[ array_rand( $data ) ];
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$data = array_pop( $array );
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}
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if ( $data and preg_match( '#^[0-9_]*$#', $data ) )
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{
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return \IPS\Http\Url::external( 'https://facebook.com/' . $data );
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}
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throw new \InvalidArgumentException();
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}
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/**
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* Is this member connected to the Facebook app?
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*
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* @param \IPS\Member $member A member object
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* @return boolean
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*/
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public function isConnected( $member )
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{
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if ( \is_numeric( \IPS\Settings::i()->promote_facebook_auth ) )
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{
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/* Standard handler */
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$facebook = \IPS\Login\Handler::findMethod('IPS\Login\Handler\Oauth2\Facebook');
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return $facebook->canProcess( $member );
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}
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/* Custom */
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if ( isset( $this->settings['member_token']['access_token'] ) )
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{
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return TRUE;
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}
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return FALSE;
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}
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/**
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* Ensure the URL is not protocol relative
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*
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* @return \IPS\Http\Url
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*/
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protected function returnUrlWithProtocol( \IPS\Http\Url $url )
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{
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if ( ! $url->data['scheme'] )
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{
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$url = $url->setScheme( ( \substr( \IPS\Settings::i()->base_url, 0, 5 ) == 'https' ) ? 'https' : 'http' );
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}
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return $url;
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}
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/**
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* Wrapper to Facebook log in handler with the correct settings
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*
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* @return \IPS\Login object
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*/
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public static function getLoginHandler()
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{
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$facebook = \IPS\Login\Handler::findMethod('IPS\Login\Handler\Oauth2\Facebook');
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if ( $facebook === NULL )
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{
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return NULL;
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}
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/* We are using the default app here */
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if ( ! \is_numeric( \IPS\Settings::i()->promote_facebook_auth ) )
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{
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$facebook->settings = json_decode( \IPS\Settings::i()->promote_facebook_auth, TRUE );
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}
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return $facebook;
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}
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} |