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<?php |
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/** |
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* GS API Client |
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* |
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* @since 0.2.0 |
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* @author peshkov@UD |
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*/ |
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namespace wpCloud\StatelessMedia { |
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|
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use Google_Client; |
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use Google_Service_Storage; |
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use WP_Error; |
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use Exception; |
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use Google_Service_Storage_ObjectAccessControl; |
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use Google_Auth_AssertionCredentials; |
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|
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if( !class_exists( 'wpCloud\StatelessMedia\GS_Client' ) ) { |
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|
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final class GS_Client { |
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|
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/** |
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* Singleton object |
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* |
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* @var \wpCloud\StatelessMedia\GS_Client |
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*/ |
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private static $instance; |
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|
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/** |
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* Google Client manager |
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* |
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* @var \Google_Client $client |
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*/ |
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public $client; |
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|
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/** |
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* Google Storage Service manager |
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* |
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* @var \Google_Service_Storage $service |
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*/ |
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public $service; |
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|
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/** |
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* Google Storage Bucket |
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* |
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* @var |
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*/ |
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private $bucket; |
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|
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/** |
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* @var |
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*/ |
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private $temp_objects = array(); |
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|
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/** |
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* Constructor. |
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* Must not be called directly. |
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* |
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* @param $args |
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* @author peshkov@UD |
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*/ |
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protected function __construct( $args ) { |
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global $current_blog; |
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$this->bucket = $args[ 'bucket' ]; |
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$this->key_json = json_decode($args['key_json'], 1); |
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|
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// May be Loading Google SDK.... |
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if( !class_exists( 'Google_Client' ) ) { |
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include_once( ud_get_stateless_media()->path('lib/Google/vendor/autoload.php', 'dir') ); |
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} |
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|
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/* Initialize our client */ |
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$this->client = new Google_Client(); |
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|
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// We're supporting Google SDK 1.X version since |
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// The plugins which also are using Google SDK may have its old version |
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// what may cause conflicts |
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// |
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if( version_compare( $this->client->getLibraryVersion(), '2.0', '<' ) ) { |
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// We should set the warning about potential issue |
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// If Google SDK has different version with already included |
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$this->_setWarning(); |
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|
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$wp_upload_dir = wp_upload_dir(); |
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$dir = $wp_upload_dir[ 'path' ]; |
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$filename = md5( wp_generate_password() ) . '.tmp'; |
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$path = wp_normalize_path( $dir . '/' .$filename ); |
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@file_put_contents( $path, json_encode( $this->key_json ) ); |
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$cred = $this->client->loadServiceAccountJson( $path, ['https://www.googleapis.com/auth/devstorage.full_control'] ); |
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$this->client->setAssertionCredentials($cred); |
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if ($this->client->getAuth()->isAccessTokenExpired()) { |
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$this->client->getAuth()->refreshTokenWithAssertion($cred); |
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} |
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@unlink( $path ); |
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} else { |
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// May be delete warning transient if it was set |
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$this->_deleteWarning(); |
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$this->client->setAuthConfig($this->key_json); |
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} |
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|
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if( isset( $current_blog ) && isset( $current_blog->domain ) ) { |
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$this->client->setApplicationName( $current_blog->domain ); |
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} else { |
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$this->client->setApplicationName( urlencode( str_replace( array( 'http://', 'https://' ), '', get_bloginfo( 'url' ) ) ) ); |
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} |
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|
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$this->client->setScopes(['https://www.googleapis.com/auth/devstorage.full_control']); |
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|
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// May be Loading Google SDK. Because some bad plugins may load their Google SDK with not included Google_Service_Storage. |
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if( !class_exists( 'Google_Service_Storage' ) ) { |
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include_once( ud_get_stateless_media()->path('lib/Google/vendor/autoload.php', 'dir') ); |
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} |
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|
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/* Now, Initialize our Google Storage Service */ |
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$this->service = new Google_Service_Storage( $this->client ); |
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|
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} |
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|
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/** |
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* Wrapper for listObjects() |
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*/ |
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public function list_objects( $bucket, $options = array() ) { |
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|
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$options = wp_parse_args( $options, array( |
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'delimiter' => '', |
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'maxResults' => 1000, |
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'pageToken' => '', |
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'prefix' => '', |
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'projection' => 'noAcl', |
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'versions' => false |
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) ); |
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|
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return $this->service->objects->listObjects( $bucket, $options ); |
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} |
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|
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/** |
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* List all items page by page of maxResults |
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* @param $bucket |
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* @param array $options |
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* @return mixed |
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*/ |
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public function list_all_objects( $bucket, $options = array() ) { |
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|
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$options = wp_parse_args( $options, array( |
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'delimiter' => '', |
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'maxResults' => 1000, |
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'pageToken' => '', |
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'prefix' => '', |
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'projection' => 'noAcl', |
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'versions' => false |
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) ); |
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|
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$response = $this->service->objects->listObjects( $bucket, $options ); |
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|
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$this->temp_objects = array_merge( $this->temp_objects, $response->getItems() ); |
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|
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if ( !empty( $response->nextPageToken ) ) { |
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$options['pageToken'] = $response->nextPageToken; |
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return $this->list_all_objects( $bucket, $options ); |
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} else { |
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return $this->temp_objects; |
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} |
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} |
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|
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/** |
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* Add/Update Media Object to Bucket |
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* |
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* @author peshkov@UD |
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* @param array $args |
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* @return bool |
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*/ |
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public function add_media( $args = array() ) { |
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try { |
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|
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@set_time_limit( -1 ); |
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|
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extract( $args = wp_parse_args( $args, array( |
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'name' => false, |
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'absolutePath' => false, |
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'mimeType' => 'image/jpeg', |
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'metadata' => array(), |
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) ) ); |
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|
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/* Be sure file exists. */ |
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if( !file_exists( $args['absolutePath'] ) ) { |
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return new \WP_Error( 'sm_error', __( 'Unable to locate file on disk', ud_get_stateless_media()->domain ) ); |
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} |
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|
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/* Set default name if parameter was not passed. */ |
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if( empty( $name ) ) { |
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$name = basename( $args['name'] ); |
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} |
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|
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$name = apply_filters( 'wp_stateless_file_name', $name ); |
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|
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// If media exists we just return it |
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if ( $media = $this->media_exists( $name ) ) { |
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if($media->getCacheControl() != $args['cacheControl']){ |
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$media->setCacheControl($args['cacheControl']); |
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$media = $this->service->objects->patch($this->bucket, $name, $media); |
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} |
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return get_object_vars( $media ); |
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} |
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|
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$media = new \Google_Service_Storage_StorageObject(); |
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$media->setName($name); |
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$media->setMetadata($args['metadata']); |
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|
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if (isset($args['cacheControl'])) { |
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$media->setCacheControl($args['cacheControl']); |
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} |
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|
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if (isset($args['contentEncoding'])) { |
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$media->setContentEncoding($args['contentEncoding']); |
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} |
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|
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if (isset($args['contentDisposition'])) { |
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$media->getContentDisposition($args['contentDisposition']); |
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} |
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|
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/* Upload Media file to Google storage */ |
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$media = $this->service->objects->insert($this->bucket, $media, array_filter(array( |
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'data' => file_get_contents($args['absolutePath']), |
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'uploadType' => 'media', |
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'mimeType' => $args['mimeType'], |
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'predefinedAcl' => 'bucketOwnerFullControl', |
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))); |
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|
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/* Make Media Public READ for all on success */ |
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if (is_object($media)) { |
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$acl = new Google_Service_Storage_ObjectAccessControl(); |
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$acl->setEntity('allUsers'); |
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$acl->setRole('READER'); |
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|
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$this->service->objectAccessControls->insert($this->bucket, $name, $acl); |
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} |
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|
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} catch( Exception $e ) { |
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return new WP_Error( 'sm_error', $e->getMessage() ); |
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} |
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return get_object_vars( $media ); |
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} |
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|
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/** |
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* get or save media file |
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* @param $path |
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* @param bool $save |
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* @param bool $save_path |
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* @return bool|\Google_Service_Storage_StorageObject|int |
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*/ |
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public function get_media( $path, $save = false, $save_path = false ) { |
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try { |
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$media = $this->service->objects->get($this->bucket, $path); |
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} catch ( \Exception $e ) { |
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return false; |
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} |
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|
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if ( empty( $media->id ) ) return false; |
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|
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if ( $save && $save_path ) { |
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if ( !file_exists( $_dir = dirname( $save_path ) ) ) { |
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wp_mkdir_p( $_dir ); |
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} |
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return $this->client->getHttpClient()->get($media->getMediaLink(), ['save_to' => $save_path] )->getStatusCode(); |
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} |
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|
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return $media; |
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} |
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|
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/** |
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* Check if media exists |
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* @param $path |
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* @return bool |
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*/ |
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public function media_exists( $path ) { |
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try { |
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$media = $this->service->objects->get($this->bucket, $path); |
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// Here we wanted to check if access allowed, but noticed it actually sets this ACL... Leaving it as is. @author korotkov@ud |
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$this->service->objectAccessControls->get($this->bucket, $path, 'allUsers'); |
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} catch ( \Exception $e ) { |
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return false; |
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} |
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|
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if ( empty( $media->id ) ) return false; |
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return $media; |
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} |
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|
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/** |
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* Fired for every file remove action |
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* |
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* @author peshkov@UD |
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* @param string $name |
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* @return bool |
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*/ |
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public function remove_media( $name ) { |
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try { |
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$this->service->objects->delete( $this->bucket, $name ); |
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} catch( Exception $e ) { |
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return new WP_Error( 'sm_error', $e->getMessage() ); |
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} |
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return true; |
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} |
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|
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/** |
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* Tests connection to Google Storage |
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* by trying to get passed bucket's data. |
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* |
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* @author peshkov@UD |
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*/ |
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public function is_connected() { |
| 310 |
try { |
| 311 |
$this->service->buckets->get( $this->bucket ); |
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} catch( Exception $e ) { |
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return $e; |
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} |
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return true; |
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} |
| 317 |
|
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/** |
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* Determine if instance already exists and Return Instance |
| 320 |
* |
| 321 |
* @param array $args |
| 322 |
* |
| 323 |
* $args |
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* @param string client_id |
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* @param string service_account_name |
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* @param string key_file_path |
| 327 |
* |
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* @author peshkov@UD |
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* @return \wpCloud\StatelessMedia\GS_Client |
| 330 |
*/ |
| 331 |
public static function get_instance( $args ) { |
| 332 |
if( null === self::$instance ) { |
| 333 |
|
| 334 |
try { |
| 335 |
|
| 336 |
if( empty( $args[ 'bucket' ] ) ) { |
| 337 |
throw new Exception( __( '<b>Bucket</b> parameter must be provided.' ) ); |
| 338 |
} |
| 339 |
|
| 340 |
$json = "{}"; |
| 341 |
|
| 342 |
if ( !empty( $args[ 'key_json' ] ) ) { |
| 343 |
$json = json_decode($args['key_json']); |
| 344 |
} |
| 345 |
|
| 346 |
if( !$json || !property_exists($json, 'private_key') ){ |
| 347 |
throw new Exception( __( '<b>Service Account JSON</b> is invalid.' ) ); |
| 348 |
} |
| 349 |
|
| 350 |
self::$instance = new self( $args ); |
| 351 |
} catch( Exception $e ) { |
| 352 |
return new WP_Error( 'sm_error', $e->getMessage() ); |
| 353 |
} |
| 354 |
} |
| 355 |
return self::$instance; |
| 356 |
} |
| 357 |
|
| 358 |
/** |
| 359 |
* Set warning about potential conflict with Google SDK |
| 360 |
* |
| 361 |
* @since 2.0.1 |
| 362 |
*/ |
| 363 |
private function _setWarning() { |
| 364 |
|
| 365 |
$reflector = new \ReflectionClass('Google_Client'); |
| 366 |
$pluginBasename = wp_normalize_path( plugin_basename( $reflector->getFileName() ) ); |
| 367 |
|
| 368 |
// Check if get_plugins() function exists. This is required on the front end of the |
| 369 |
// site, since it is in a file that is normally only loaded in the admin. |
| 370 |
if ( ! function_exists( 'get_plugins' ) ) { |
| 371 |
require_once ABSPATH . 'wp-admin/includes/plugin.php'; |
| 372 |
} |
| 373 |
|
| 374 |
$pluginBasenameParts = explode( '/', $pluginBasename ); |
| 375 |
$pluginName = __( "UNDEFINED", ud_get_stateless_media()->domain ); |
| 376 |
|
| 377 |
foreach( get_plugins() as $path => $meta ) { |
| 378 |
if( strpos( $path, trailingslashit( $pluginBasenameParts[0] ) ) === 0 ) { |
| 379 |
$pluginName = $meta['Name']; |
| 380 |
} |
| 381 |
}; |
| 382 |
|
| 383 |
$error = sprintf( __( "%s plugin may have potential Google SDK version conflicts with %s plugin. %s is using Google SDK %s, when %s loads old Google SDK version %s.", ud_get_stateless_media()->domain ), |
| 384 |
"<b>" . 'WP-Stateless' . "</b>", |
| 385 |
"<b>" . $pluginName . "</b>", |
| 386 |
'WP-Stateless', |
| 387 |
"<b>v2.0</b>", |
| 388 |
$pluginName, |
| 389 |
"<b>v" . Google_Client::LIBVER . "</b>" |
| 390 |
); |
| 391 |
|
| 392 |
set_transient( "wp_stateless_google_sdk_conflict", $error ); |
| 393 |
} |
| 394 |
|
| 395 |
/** |
| 396 |
* Removes Warning if it exists |
| 397 |
* |
| 398 |
*/ |
| 399 |
private function _deleteWarning() { |
| 400 |
delete_transient( "wp_stateless_google_sdk_conflict" ); |
| 401 |
} |
| 402 |
|
| 403 |
} |
| 404 |
|
| 405 |
} |
| 406 |
|
| 407 |
} |
| 408 |
|
