waffle/lib/filters/postParameter.js

シンプルなWEBアプリケーションフレームワークです。(ALL YOUR NODE ARE BELONG TO US)

/*
 * Copyright 2012 Katsunori Koyanagi
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
/**
 * @overview リクエストボディを文字列として取得し、コンテキストに設定するフィルタです。
 */

"use strict";

var ignoreMethods = {
	"GET" : null,
	"HEAD" : null
};

/**
 * リクエストボディを文字列としてコンテキストに設定します。
 * 
 * @name Filters#postParameter
 * @see Context#postParameter
 */
exports.pre = function(context, next) {
	var req = context.req;
	if (req.method in ignoreMethods) {
		next();
		return;
	}
	if (req.headers["content-type"] !== "application/x-www-form-urlencoded") {
		next();
		return;
	}

	var buf = "";
	req.setEncoding("UTF-8");

	var onData = function(chunk) {
		buf += chunk;
	};
	var onEnd = function(chunk) {
		req.removeListener("data", onData);
		req.removeListener("end", onEnd);
		context.postParameter = buf;
		this.__parameters__ = null;
		next();
	};

	req.on("data", onData);
	req.on("end", onEnd);
};