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<?php |
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/** |
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* Instagram Gallery block and API helper. |
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* |
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* @package automattic/jetpack |
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*/ |
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|
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use Automattic\Jetpack\Connection\Client; |
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use Automattic\Jetpack\Connection\Manager; |
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|
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/** |
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* Class Jetpack_Instagram_Gallery_Helper |
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*/ |
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class Jetpack_Instagram_Gallery_Helper { |
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const TRANSIENT_KEY_PREFIX = 'jetpack_instagram_gallery_block_'; |
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|
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/** |
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* Check whether an Instagram access token is valid, |
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* or has been permanently deleted elsewhere. |
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* |
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* @param string $access_token_id The ID of the external access token for Instagram. |
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* @return bool |
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*/ |
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public static function is_instagram_access_token_valid( $access_token_id ) { |
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$site_id = Manager::get_site_id(); |
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if ( is_wp_error( $site_id ) ) { |
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return false; |
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} |
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|
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if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) { |
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if ( ! class_exists( 'WPCOM_Instagram_Gallery_Helper' ) ) { |
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\require_lib( 'instagram-gallery-helper' ); |
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} |
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$token = WPCOM_Instagram_Gallery_Helper::get_token( $access_token_id ); |
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return ! is_wp_error( $token ); |
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} |
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|
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$response = Client::wpcom_json_api_request_as_blog( |
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sprintf( '/sites/%d/instagram/%d/check-token', $site_id, $access_token_id ), |
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2, |
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array( 'headers' => array( 'content-type' => 'application/json' ) ), |
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null, |
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'wpcom' |
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); |
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return 200 === wp_remote_retrieve_response_code( $response ); |
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} |
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|
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/** |
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* Get the Instagram Gallery. |
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* |
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* @param string $access_token_id The ID of the external access token for Instagram. |
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* @param int $count The number of Instagram posts to fetch. |
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* @return mixed |
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*/ |
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public static function get_instagram_gallery( $access_token_id, $count ) { |
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$site_id = Manager::get_site_id(); |
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if ( is_wp_error( $site_id ) ) { |
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return $site_id; |
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} |
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|
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$transient_key = self::TRANSIENT_KEY_PREFIX . $access_token_id; |
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|
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// Check if the connection exists before trying to retrieve the cached gallery. |
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if ( ! self::is_instagram_access_token_valid( $access_token_id ) ) { |
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delete_transient( $transient_key ); |
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return new WP_Error( |
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'instagram_connection_unavailable', |
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__( 'The requested Instagram connection is not available anymore.', 'jetpack' ), |
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403 |
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); |
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} |
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|
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$cached_gallery = get_transient( $transient_key ); |
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if ( $cached_gallery ) { |
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$decoded_cached_gallery = json_decode( $cached_gallery ); |
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// Assuming the json_decode succeeds, `images` can be an array of images or a string 'ERROR'. |
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$cached_images = $decoded_cached_gallery->images ?? null; |
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$cached_count = is_array( $cached_images ) ? count( $cached_images ) : 0; |
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if ( $cached_count >= $count ) { |
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return $decoded_cached_gallery; |
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} |
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} |
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|
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$response = Client::wpcom_json_api_request_as_blog( |
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sprintf( '/sites/%d/instagram/%d?count=%d', $site_id, $access_token_id, $count ), |
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2, |
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array( 'headers' => array( 'content-type' => 'application/json' ) ), |
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null, |
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'wpcom' |
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); |
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if ( is_wp_error( $response ) ) { |
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return $response; |
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} |
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|
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$gallery = wp_remote_retrieve_body( $response ); |
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set_transient( $transient_key, $gallery, HOUR_IN_SECONDS ); |
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return json_decode( $gallery ); |
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} |
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} |
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|
