update plugins

1 files changed, 443 insertions, 0 deletions

diff --git a/plugins/jetpack/class.json-api.php b/plugins/jetpack/class.json-api.php
new file mode 100644
index 00000000..5a322eb6
--- /dev/null
+++ b/plugins/jetpack/class.json-api.php
@@ -0,0 +1,443 @@
+<?php
+
+defined( 'WPCOM_JSON_API__DEBUG' ) or define( 'WPCOM_JSON_API__DEBUG', false );
+
+class WPCOM_JSON_API {
+	static $self = null;
+
+	var $endpoints = array();
+
+	var $token_details = array();
+
+	var $method = '';
+	var $url = '';
+	var $path = '';
+	var $query = array();
+	var $post_body = null;
+	var $files = null;
+	var $content_type = null;
+	var $accept = '';
+
+	var $_server_https;
+	var $exit = true;
+	var $public_api_scheme = 'https';
+
+	var $trapped_error = null;
+
+	static function init( $method = null, $url = null, $post_body = null ) {
+		if ( !self::$self ) {
+			$class = function_exists( 'get_called_class' ) ? get_called_class() : __CLASS__;
+			self::$self = new $class( $method, $url, $post_body );
+		}
+		return self::$self;
+	}
+
+	function add( WPCOM_JSON_API_Endpoint $endpoint ) {
+		if ( !isset( $this->endpoints[$endpoint->path] ) ) {
+			$this->endpoints[$endpoint->path] = array();
+		}
+		$this->endpoints[$endpoint->path][$endpoint->method] = $endpoint;
+	}
+
+	static function is_truthy( $value ) {
+		switch ( strtolower( (string) $value ) ) {
+		case '1' :
+		case 't' :
+		case 'true' :
+			return true;
+		}
+
+		return false;
+	}
+
+	function __construct() {
+		$args = func_get_args();
+		call_user_func_array( array( $this, 'setup_inputs' ), $args );
+	}
+
+	function setup_inputs( $method = null, $url = null, $post_body = null ) {
+		if ( is_null( $method ) ) {
+			$this->method = strtoupper( $_SERVER['REQUEST_METHOD'] );
+		} else {
+			$this->method = strtoupper( $method );
+		}
+		if ( is_null( $url ) ) {
+			$this->url = ( is_ssl() ? 'https' : 'http' ) . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
+		} else {
+			$this->url = $url;
+		}
+
+		$parsed     = parse_url( $this->url );
+		$this->path = $parsed['path'];
+
+		if ( !empty( $parsed['query'] ) ) {
+			wp_parse_str( $parsed['query'], $this->query );
+		}
+
+		if ( isset( $_SERVER['HTTP_ACCEPT'] ) && $_SERVER['HTTP_ACCEPT'] ) {
+			$this->accept = $_SERVER['HTTP_ACCEPT'];
+		}
+
+		if ( 'POST' == $this->method ) {
+			if ( is_null( $post_body ) ) {
+				$this->post_body = file_get_contents( 'php://input' );
+
+				if ( isset( $_SERVER['HTTP_CONTENT_TYPE'] ) && $_SERVER['HTTP_CONTENT_TYPE'] ) {
+					$this->content_type = $_SERVER['HTTP_CONTENT_TYPE'];
+				} elseif ( isset( $_SERVER['CONTENT_TYPE'] ) && $_SERVER['CONTENT_TYPE'] ) {
+					$this->content_type = $_SERVER['CONTENT_TYPE'] ;
+				} elseif ( '{' === $this->post_body[0] ) {
+					$this->content_type = 'application/json';
+				} else {
+					$this->content_type = 'application/x-www-form-urlencoded';
+				}
+
+				if ( 0 === strpos( strtolower( $this->content_type ), 'multipart/' ) ) {
+					$this->post_body = http_build_query( stripslashes_deep( $_POST ) );
+					$this->files = $_FILES;
+					$this->content_type = 'multipart/form-data';
+				}
+			} else {
+				$this->post_body = $post_body;
+				$this->content_type = '{' === $this->post_body[0] ? 'application/json' : 'application/x-www-form-urlencoded';
+			}
+		} else {
+			$this->post_body = null;
+			$this->content_type = null;
+		}
+
+		$this->_server_https = array_key_exists( 'HTTPS', $_SERVER ) ? $_SERVER['HTTPS'] : '--UNset--';
+	}
+
+	function initialize() {
+		$this->token_details['blog_id'] = Jetpack::get_option( 'id' );
+	}
+
+	function serve( $exit = true ) {
+		$this->exit = (bool) $exit;
+
+		add_filter( 'home_url', array( $this, 'ensure_http_scheme_of_home_url' ), 10, 3 );
+
+		add_filter( 'user_can_richedit', '__return_true' );
+
+		add_filter( 'comment_edit_pre', array( $this, 'comment_edit_pre' ) );
+
+		$this->initialize();
+
+		// Normalize path
+		$this->path = untrailingslashit( $this->path );
+		$this->path = preg_replace( '#^/rest/v1#', '', $this->path );
+
+		$allowed_methods = array( 'GET', 'POST' );
+		$four_oh_five = false;
+
+		$is_help = preg_match( '#/help/?$#i', $this->path );
+		$matching_endpoints = array();
+
+		if ( $is_help ) {
+			$this->path = substr( rtrim( $this->path, '/' ), 0, -5 );
+			// Show help for all matching endpoints regardless of method
+			$methods = $allowed_methods;
+			$find_all_matching_endpoints = true;
+			// How deep to truncate each endpoint's path to see if it matches this help request
+			$depth = substr_count( $this->path, '/' ) + 1;
+			if ( false !== stripos( $this->accept, 'javascript' ) || false !== stripos( $this->accept, 'json' ) ) {
+				$help_content_type = 'json';
+			} else {
+				$help_content_type = 'html';
+			}
+		} else {
+			if ( in_array( $this->method, $allowed_methods ) ) {
+				// Only serve requested method
+				$methods = array( $this->method );
+				$find_all_matching_endpoints = false;
+			} else {
+				// We don't allow this requested method - find matching endpoints and send 405
+				$methods = $allowed_methods;
+				$find_all_matching_endpoints = true;
+				$four_oh_five = true;
+			} 
+		}
+
+		// Find which endpoint to serve
+		$found = false;
+		foreach ( $this->endpoints as $endpoint_path => $endpoints_by_method ) {
+			foreach ( $methods as $method ) {
+				if ( !isset( $endpoints_by_method[$method] ) ) {
+					continue;
+				}
+
+				// Normalize
+				$endpoint_path = untrailingslashit( $endpoint_path );
+				if ( $is_help ) {
+					// Truncate path at help depth
+					$endpoint_path = join( '/', array_slice( explode( '/', $endpoint_path ), 0, $depth ) );
+				}
+
+				// Generate regular expression from sprintf()
+				$endpoint_path_regex = str_replace( array( '%s', '%d' ), array( '([^/?&]+)', '(\d+)' ), $endpoint_path );
+
+				if ( !preg_match( "#^$endpoint_path_regex\$#", $this->path, $path_pieces ) ) {
+					// This endpoint does not match the requested path.
+					continue;
+				}
+
+				$found = true;
+
+				if ( $find_all_matching_endpoints ) {
+					$matching_endpoints[] = array( $endpoints_by_method[$method], $path_pieces );
+				} else {
+					// The method parameters are now in $path_pieces
+					$endpoint = $endpoints_by_method[$method];
+					break 2;
+				}
+			}
+		}
+
+		if ( !$found ) {
+			return $this->output( 404, '', 'text/plain' );
+		}
+
+		if ( $four_oh_five ) {
+			$allowed_methods = array();
+			foreach ( $matching_endpoints as $matching_endpoint ) {
+				$allowed_methods[] = $matching_endpoint[0]->method;
+			}
+
+			header( 'Allow: ' . strtoupper( join( ',', array_unique( $allowed_methods ) ) ) );
+			return $this->output( 405, array( 'error' => 'not_allowed', 'error_message' => 'Method not allowed' ) );
+		}
+
+		if ( $is_help ) {
+			do_action( 'wpcom_json_api_output', 'help' );
+			if ( 'json' === $help_content_type ) {
+				$docs = array();
+				foreach ( $matching_endpoints as $matching_endpoint ) {
+					if ( !$matching_endpoint[0]->in_testing || WPCOM_JSON_API__DEBUG )
+						$docs[] = call_user_func( array( $matching_endpoint[0], 'generate_documentation' ) );
+				}
+				return $this->output( 200, $docs );
+			} else {
+				status_header( 200 );
+				foreach ( $matching_endpoints as $matching_endpoint ) {
+					if ( !$matching_endpoint[0]->in_testing || WPCOM_JSON_API__DEBUG )
+						call_user_func( array( $matching_endpoint[0], 'document' ) );
+				}
+			}
+			exit;
+		}
+
+		if ( $endpoint->in_testing && !WPCOM_JSON_API__DEBUG ) {
+			return $this->output( 404, '', 'text/plain' );
+		}
+
+		do_action( 'wpcom_json_api_output', $endpoint->stat );
+
+		$response = $this->process_request( $endpoint, $path_pieces );
+
+		if ( !$response ) {
+			return $this->output( 500, '', 'text/plain' );
+		} elseif ( is_wp_error( $response ) ) {
+			$status_code = $response->get_error_data();
+			if ( !$status_code ) {
+				$status_code = 400;
+			}
+			$response = array(
+				'error'   => $response->get_error_code(),
+				'message' => $response->get_error_message(),
+			);
+			return $this->output( $status_code, $response );
+		}
+
+		return $this->output( 200, $response );
+	}
+
+	function process_request( WPCOM_JSON_API_Endpoint $endpoint, $path_pieces ) {
+		return call_user_func_array( array( $endpoint, 'callback' ), $path_pieces );
+	}
+
+	function output( $status_code, $response = null, $content_type = 'application/json' ) {
+		if ( is_null( $response ) ) {
+			$response = new stdClass;
+		}
+
+		if ( 'text/plain' === $content_type ) {
+			status_header( (int) $status_code );
+			header( 'Content-Type: text/plain' );
+			echo $response;
+			if ( $this->exit ) {
+				exit;
+			}
+
+			return $content_type;
+		}
+
+		if ( isset( $this->query['http_envelope'] ) && self::is_truthy( $this->query['http_envelope'] ) ) {
+			$response = array(
+				'code' => (int) $status_code,
+				'headers' => array(
+					array(
+						'name' => 'Content-Type',
+						'value' => $content_type,
+					),
+				),
+				'body' => $response,
+			);
+			$status_code = 200;
+			$content_type = 'application/json';
+		}
+
+		status_header( (int) $status_code );
+		header( "Content-Type: $content_type" );
+		if ( isset( $this->query['callback'] ) && is_string( $this->query['callback'] ) ) {
+			$callback = preg_replace( '/[^a-z0-9_.]/i', '', $this->query['callback'] );
+		} else {
+			$callback = false;
+		}
+
+		if ( $callback ) {
+			echo "$callback(";
+		}
+		echo $this->json_encode( $response );
+		if ( $callback ) {
+			echo ");";
+		}
+
+		if ( $this->exit ) {
+			exit;
+		}
+
+		return $content_type;
+	}
+
+	function ensure_http_scheme_of_home_url( $url, $path, $original_scheme ) {
+		if ( $original_scheme ) {
+			return $url;
+		}
+
+		return preg_replace( '#^https:#', 'http:', $url );
+	}
+
+	function comment_edit_pre( $comment_content ) {
+		return htmlspecialchars_decode( $comment_content, ENT_QUOTES );
+	}
+
+	function json_encode( $data ) {
+		return json_encode( $data );
+	}
+
+	function ends_with( $haystack, $needle ) {
+		return $needle === substr( $haystack, -strlen( $needle ) );
+	}
+
+	// Returns the site's blog_id in the WP.com ecosystem
+	function get_blog_id_for_output() {
+		return $this->token_details['blog_id'];
+	}
+
+	// Returns the site's local blog_id
+	function get_blog_id( $blog_id ) {
+		return $GLOBALS['blog_id'];
+	}
+
+	function switch_to_blog_and_validate_user( $blog_id = 0, $verify_token_for_blog = true ) {
+		if ( -1 == get_option( 'blog_public' ) && !current_user_can( 'read' ) ) {
+			return new WP_Error( 'unauthorized', 'User cannot access this private blog.', 403 );
+		}
+
+		return $blog_id;
+	}
+
+	function post_like_count( $blog_id, $post_id ) {
+		return 0;
+	}
+
+	function get_avatar_url( $email ) {
+		add_filter( 'pre_option_show_avatars', '__return_true', 999 );
+		$_SERVER['HTTPS'] = 'off';
+
+		$avatar_img_element = get_avatar( $email, 96, '' );
+
+		if ( !$avatar_img_element || is_wp_error( $avatar_img_element ) ) {
+			$return = '';
+		} elseif ( !preg_match( '#src=([\'"])?(.*?)(?(1)\\1|\s)#', $avatar_img_element, $matches ) ) {
+			$return = '';
+		} else {
+			$return = esc_url_raw( htmlspecialchars_decode( $matches[2] ) );
+		}
+
+		remove_filter( 'pre_option_show_avatars', '__return_true', 999 );
+		if ( '--UNset--' === $this->_server_https ) {
+			unset( $_SERVER['HTTPS'] );
+		} else {
+			$_SERVER['HTTPS'] = $this->_server_https;
+		}
+
+		return $return;
+	}
+
+	/**
+	 * Traps `wp_die()` calls and outputs a JSON response instead.
+	 * The result is always output, never returned.
+	 *
+	 * @param string|null $error_code.  Call with string to start the trapping.  Call with null to stop.
+	 */
+	function trap_wp_die( $error_code = null ) {
+		// Stop trapping
+		if ( is_null( $error_code ) ) {
+			$this->trapped_error = null;
+			remove_filter( 'wp_die_handler', array( $this, 'wp_die_handler_callback' ) );
+			return;
+		}
+
+		// If API called via PHP, bail: don't do our custom wp_die().  Do the normal wp_die().
+		if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
+			if ( ! defined( 'REST_API_REQUEST' ) || ! REST_API_REQUEST ) {
+				return;
+			}
+		} else {
+			if ( ! defined( 'XMLRPC_REQUEST' ) || ! XMLRPC_REQUEST ) {
+				return;
+			}
+		}
+
+		// Start trapping
+		$this->trapped_error = array(
+			'status'  => 500,
+			'code'    => $error_code,
+			'message' => '',
+		);
+
+		add_filter( 'wp_die_handler', array( $this, 'wp_die_handler_callback' ) );
+	}
+
+	function wp_die_handler_callback() {
+		return array( $this, 'wp_die_handler' );
+	}
+
+	function wp_die_handler( $message, $title = '', $args = array() ) {
+		$args = wp_parse_args( $args, array(
+			'response' => 500,
+		) );
+
+		if ( $title ) {
+			$message = "$title: $message";
+		}
+
+		$this->trapped_error['status']  = $args['response'];
+		$this->trapped_error['message'] = wp_kses( $message, array() );
+
+		// We still want to exit so that code execution stops where it should.
+		// Attach the JSON output to WordPress' shutdown handler
+		add_action( 'shutdown', array( $this, 'output_trapped_error' ), 0 );
+		exit;
+	}
+
+	function output_trapped_error() {
+		$this->exit = false; // We're already exiting once.  Don't do it twice.
+		$this->output( $this->trapped_error['status'], (object) array(
+			'error'   => $this->trapped_error['code'],
+			'message' => $this->trapped_error['message'],
+		) );
+	}
+}