From 67fdec20726e48ba3a934cb25bb30d47ec4a4f29 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Yaroslav=20De=20La=20Pe=C3=B1a=20Smirnov?= Date: Wed, 29 Nov 2017 11:44:34 +0300 Subject: Initial commit, version 0.5.3 --- node_modules/raw-body/index.js | 286 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 286 insertions(+) create mode 100644 node_modules/raw-body/index.js (limited to 'node_modules/raw-body/index.js') diff --git a/node_modules/raw-body/index.js b/node_modules/raw-body/index.js new file mode 100644 index 0000000..7fe8186 --- /dev/null +++ b/node_modules/raw-body/index.js @@ -0,0 +1,286 @@ +/*! + * raw-body + * Copyright(c) 2013-2014 Jonathan Ong + * Copyright(c) 2014-2015 Douglas Christopher Wilson + * MIT Licensed + */ + +'use strict' + +/** + * Module dependencies. + * @private + */ + +var bytes = require('bytes') +var createError = require('http-errors') +var iconv = require('iconv-lite') +var unpipe = require('unpipe') + +/** + * Module exports. + * @public + */ + +module.exports = getRawBody + +/** + * Module variables. + * @private + */ + +var ICONV_ENCODING_MESSAGE_REGEXP = /^Encoding not recognized: / + +/** + * Get the decoder for a given encoding. + * + * @param {string} encoding + * @private + */ + +function getDecoder (encoding) { + if (!encoding) return null + + try { + return iconv.getDecoder(encoding) + } catch (e) { + // error getting decoder + if (!ICONV_ENCODING_MESSAGE_REGEXP.test(e.message)) throw e + + // the encoding was not found + throw createError(415, 'specified encoding unsupported', { + encoding: encoding, + type: 'encoding.unsupported' + }) + } +} + +/** + * Get the raw body of a stream (typically HTTP). + * + * @param {object} stream + * @param {object|string|function} [options] + * @param {function} [callback] + * @public + */ + +function getRawBody (stream, options, callback) { + var done = callback + var opts = options || {} + + if (options === true || typeof options === 'string') { + // short cut for encoding + opts = { + encoding: options + } + } + + if (typeof options === 'function') { + done = options + opts = {} + } + + // validate callback is a function, if provided + if (done !== undefined && typeof done !== 'function') { + throw new TypeError('argument callback must be a function') + } + + // require the callback without promises + if (!done && !global.Promise) { + throw new TypeError('argument callback is required') + } + + // get encoding + var encoding = opts.encoding !== true + ? opts.encoding + : 'utf-8' + + // convert the limit to an integer + var limit = bytes.parse(opts.limit) + + // convert the expected length to an integer + var length = opts.length != null && !isNaN(opts.length) + ? parseInt(opts.length, 10) + : null + + if (done) { + // classic callback style + return readStream(stream, encoding, length, limit, done) + } + + return new Promise(function executor (resolve, reject) { + readStream(stream, encoding, length, limit, function onRead (err, buf) { + if (err) return reject(err) + resolve(buf) + }) + }) +} + +/** + * Halt a stream. + * + * @param {Object} stream + * @private + */ + +function halt (stream) { + // unpipe everything from the stream + unpipe(stream) + + // pause stream + if (typeof stream.pause === 'function') { + stream.pause() + } +} + +/** + * Read the data from the stream. + * + * @param {object} stream + * @param {string} encoding + * @param {number} length + * @param {number} limit + * @param {function} callback + * @public + */ + +function readStream (stream, encoding, length, limit, callback) { + var complete = false + var sync = true + + // check the length and limit options. + // note: we intentionally leave the stream paused, + // so users should handle the stream themselves. + if (limit !== null && length !== null && length > limit) { + return done(createError(413, 'request entity too large', { + expected: length, + length: length, + limit: limit, + type: 'entity.too.large' + })) + } + + // streams1: assert request encoding is buffer. + // streams2+: assert the stream encoding is buffer. + // stream._decoder: streams1 + // state.encoding: streams2 + // state.decoder: streams2, specifically < 0.10.6 + var state = stream._readableState + if (stream._decoder || (state && (state.encoding || state.decoder))) { + // developer error + return done(createError(500, 'stream encoding should not be set', { + type: 'stream.encoding.set' + })) + } + + var received = 0 + var decoder + + try { + decoder = getDecoder(encoding) + } catch (err) { + return done(err) + } + + var buffer = decoder + ? '' + : [] + + // attach listeners + stream.on('aborted', onAborted) + stream.on('close', cleanup) + stream.on('data', onData) + stream.on('end', onEnd) + stream.on('error', onEnd) + + // mark sync section complete + sync = false + + function done () { + var args = new Array(arguments.length) + + // copy arguments + for (var i = 0; i < args.length; i++) { + args[i] = arguments[i] + } + + // mark complete + complete = true + + if (sync) { + process.nextTick(invokeCallback) + } else { + invokeCallback() + } + + function invokeCallback () { + cleanup() + + if (args[0]) { + // halt the stream on error + halt(stream) + } + + callback.apply(null, args) + } + } + + function onAborted () { + if (complete) return + + done(createError(400, 'request aborted', { + code: 'ECONNABORTED', + expected: length, + length: length, + received: received, + type: 'request.aborted' + })) + } + + function onData (chunk) { + if (complete) return + + received += chunk.length + + if (limit !== null && received > limit) { + done(createError(413, 'request entity too large', { + limit: limit, + received: received, + type: 'entity.too.large' + })) + } else if (decoder) { + buffer += decoder.write(chunk) + } else { + buffer.push(chunk) + } + } + + function onEnd (err) { + if (complete) return + if (err) return done(err) + + if (length !== null && received !== length) { + done(createError(400, 'request size did not match content length', { + expected: length, + length: length, + received: received, + type: 'request.size.invalid' + })) + } else { + var string = decoder + ? buffer + (decoder.end() || '') + : Buffer.concat(buffer) + done(null, string) + } + } + + function cleanup () { + buffer = null + + stream.removeListener('aborted', onAborted) + stream.removeListener('data', onData) + stream.removeListener('end', onEnd) + stream.removeListener('error', onEnd) + stream.removeListener('close', cleanup) + } +} -- cgit v1.2.3