diff options
Diffstat (limited to '')
| -rw-r--r-- | node_modules/undici/lib/dispatcher/client-h1.js | 1496 |
1 files changed, 0 insertions, 1496 deletions
diff --git a/node_modules/undici/lib/dispatcher/client-h1.js b/node_modules/undici/lib/dispatcher/client-h1.js deleted file mode 100644 index a801ecb..0000000 --- a/node_modules/undici/lib/dispatcher/client-h1.js +++ /dev/null @@ -1,1496 +0,0 @@ -'use strict' - -/* global WebAssembly */ - -const assert = require('node:assert') -const util = require('../core/util.js') -const { channels } = require('../core/diagnostics.js') -const timers = require('../util/timers.js') -const { - RequestContentLengthMismatchError, - ResponseContentLengthMismatchError, - RequestAbortedError, - InvalidArgumentError, - HeadersTimeoutError, - HeadersOverflowError, - SocketError, - InformationalError, - BodyTimeoutError, - HTTPParserError, - ResponseExceededMaxSizeError -} = require('../core/errors.js') -const { - kUrl, - kReset, - kClient, - kParser, - kBlocking, - kRunning, - kPending, - kSize, - kWriting, - kQueue, - kNoRef, - kKeepAliveDefaultTimeout, - kHostHeader, - kPendingIdx, - kRunningIdx, - kError, - kPipelining, - kSocket, - kKeepAliveTimeoutValue, - kMaxHeadersSize, - kKeepAliveMaxTimeout, - kKeepAliveTimeoutThreshold, - kHeadersTimeout, - kBodyTimeout, - kStrictContentLength, - kMaxRequests, - kCounter, - kMaxResponseSize, - kOnError, - kResume, - kHTTPContext -} = require('../core/symbols.js') - -const constants = require('../llhttp/constants.js') -const EMPTY_BUF = Buffer.alloc(0) -const FastBuffer = Buffer[Symbol.species] -const addListener = util.addListener -const removeAllListeners = util.removeAllListeners -const kIdleSocketValidation = Symbol('kIdleSocketValidation') -const kIdleSocketValidationTimeout = Symbol('kIdleSocketValidationTimeout') -const kSocketUsed = Symbol('kSocketUsed') - -let extractBody - -async function lazyllhttp () { - const llhttpWasmData = process.env.JEST_WORKER_ID ? require('../llhttp/llhttp-wasm.js') : undefined - - let mod - try { - mod = await WebAssembly.compile(require('../llhttp/llhttp_simd-wasm.js')) - } catch (e) { - /* istanbul ignore next */ - - // We could check if the error was caused by the simd option not - // being enabled, but the occurring of this other error - // * https://github.com/emscripten-core/emscripten/issues/11495 - // got me to remove that check to avoid breaking Node 12. - mod = await WebAssembly.compile(llhttpWasmData || require('../llhttp/llhttp-wasm.js')) - } - - return await WebAssembly.instantiate(mod, { - env: { - /* eslint-disable camelcase */ - - wasm_on_url: (p, at, len) => { - /* istanbul ignore next */ - return 0 - }, - wasm_on_status: (p, at, len) => { - assert(currentParser.ptr === p) - const start = at - currentBufferPtr + currentBufferRef.byteOffset - return currentParser.onStatus(new FastBuffer(currentBufferRef.buffer, start, len)) || 0 - }, - wasm_on_message_begin: (p) => { - assert(currentParser.ptr === p) - return currentParser.onMessageBegin() || 0 - }, - wasm_on_header_field: (p, at, len) => { - assert(currentParser.ptr === p) - const start = at - currentBufferPtr + currentBufferRef.byteOffset - return currentParser.onHeaderField(new FastBuffer(currentBufferRef.buffer, start, len)) || 0 - }, - wasm_on_header_value: (p, at, len) => { - assert(currentParser.ptr === p) - const start = at - currentBufferPtr + currentBufferRef.byteOffset - return currentParser.onHeaderValue(new FastBuffer(currentBufferRef.buffer, start, len)) || 0 - }, - wasm_on_headers_complete: (p, statusCode, upgrade, shouldKeepAlive) => { - assert(currentParser.ptr === p) - return currentParser.onHeadersComplete(statusCode, Boolean(upgrade), Boolean(shouldKeepAlive)) || 0 - }, - wasm_on_body: (p, at, len) => { - assert(currentParser.ptr === p) - const start = at - currentBufferPtr + currentBufferRef.byteOffset - return currentParser.onBody(new FastBuffer(currentBufferRef.buffer, start, len)) || 0 - }, - wasm_on_message_complete: (p) => { - assert(currentParser.ptr === p) - return currentParser.onMessageComplete() || 0 - } - - /* eslint-enable camelcase */ - } - }) -} - -let llhttpInstance = null -let llhttpPromise = lazyllhttp() -llhttpPromise.catch() - -let currentParser = null -let currentBufferRef = null -let currentBufferSize = 0 -let currentBufferPtr = null - -const USE_NATIVE_TIMER = 0 -const USE_FAST_TIMER = 1 - -// Use fast timers for headers and body to take eventual event loop -// latency into account. -const TIMEOUT_HEADERS = 2 | USE_FAST_TIMER -const TIMEOUT_BODY = 4 | USE_FAST_TIMER - -// Use native timers to ignore event loop latency for keep-alive -// handling. -const TIMEOUT_KEEP_ALIVE = 8 | USE_NATIVE_TIMER - -class Parser { - constructor (client, socket, { exports }) { - assert(Number.isFinite(client[kMaxHeadersSize]) && client[kMaxHeadersSize] > 0) - - this.llhttp = exports - this.ptr = this.llhttp.llhttp_alloc(constants.TYPE.RESPONSE) - this.client = client - this.socket = socket - this.timeout = null - this.timeoutValue = null - this.timeoutType = null - this.statusCode = null - this.statusText = '' - this.upgrade = false - this.headers = [] - this.headersSize = 0 - this.headersMaxSize = client[kMaxHeadersSize] - this.shouldKeepAlive = false - this.paused = false - this.resume = this.resume.bind(this) - - this.bytesRead = 0 - - this.keepAlive = '' - this.contentLength = '' - this.connection = '' - this.maxResponseSize = client[kMaxResponseSize] - } - - setTimeout (delay, type) { - // If the existing timer and the new timer are of different timer type - // (fast or native) or have different delay, we need to clear the existing - // timer and set a new one. - if ( - delay !== this.timeoutValue || - (type & USE_FAST_TIMER) ^ (this.timeoutType & USE_FAST_TIMER) - ) { - // If a timeout is already set, clear it with clearTimeout of the fast - // timer implementation, as it can clear fast and native timers. - if (this.timeout) { - timers.clearTimeout(this.timeout) - this.timeout = null - } - - if (delay) { - if (type & USE_FAST_TIMER) { - this.timeout = timers.setFastTimeout(onParserTimeout, delay, new WeakRef(this)) - } else { - this.timeout = setTimeout(onParserTimeout, delay, new WeakRef(this)) - this.timeout.unref() - } - } - - this.timeoutValue = delay - } else if (this.timeout) { - // istanbul ignore else: only for jest - if (this.timeout.refresh) { - this.timeout.refresh() - } - } - - this.timeoutType = type - } - - resume () { - if (this.socket.destroyed || !this.paused) { - return - } - - assert(this.ptr != null) - assert(currentParser == null) - - this.llhttp.llhttp_resume(this.ptr) - - assert(this.timeoutType === TIMEOUT_BODY) - if (this.timeout) { - // istanbul ignore else: only for jest - if (this.timeout.refresh) { - this.timeout.refresh() - } - } - - this.paused = false - this.execute(this.socket.read() || EMPTY_BUF) // Flush parser. - this.readMore() - } - - readMore () { - while (!this.paused && this.ptr) { - const chunk = this.socket.read() - if (chunk === null) { - break - } - this.execute(chunk) - } - } - - execute (data) { - assert(this.ptr != null) - assert(currentParser == null) - assert(!this.paused) - - const { socket, llhttp } = this - - if (data.length > currentBufferSize) { - if (currentBufferPtr) { - llhttp.free(currentBufferPtr) - } - currentBufferSize = Math.ceil(data.length / 4096) * 4096 - currentBufferPtr = llhttp.malloc(currentBufferSize) - } - - new Uint8Array(llhttp.memory.buffer, currentBufferPtr, currentBufferSize).set(data) - - // Call `execute` on the wasm parser. - // We pass the `llhttp_parser` pointer address, the pointer address of buffer view data, - // and finally the length of bytes to parse. - // The return value is an error code or `constants.ERROR.OK`. - try { - let ret - - try { - currentBufferRef = data - currentParser = this - ret = llhttp.llhttp_execute(this.ptr, currentBufferPtr, data.length) - /* eslint-disable-next-line no-useless-catch */ - } catch (err) { - /* istanbul ignore next: difficult to make a test case for */ - throw err - } finally { - currentParser = null - currentBufferRef = null - } - - const offset = llhttp.llhttp_get_error_pos(this.ptr) - currentBufferPtr - - if (ret !== constants.ERROR.OK) { - const body = data.subarray(offset) - - if (ret === constants.ERROR.PAUSED_UPGRADE) { - this.onUpgrade(body) - } else if (ret === constants.ERROR.PAUSED) { - this.paused = true - socket.unshift(body) - } else { - throw this.createError(ret, body) - } - } - } catch (err) { - util.destroy(socket, err) - } - } - - finish () { - assert(currentParser === null) - assert(this.ptr != null) - assert(!this.paused) - - const { llhttp } = this - - let ret - - try { - currentParser = this - ret = llhttp.llhttp_finish(this.ptr) - } finally { - currentParser = null - } - - if (ret === constants.ERROR.OK) { - return null - } - - if (ret === constants.ERROR.PAUSED || ret === constants.ERROR.PAUSED_UPGRADE) { - this.paused = true - return null - } - - return this.createError(ret, EMPTY_BUF) - } - - createError (ret, data) { - const { llhttp, contentLength, bytesRead } = this - - if (contentLength && bytesRead !== parseInt(contentLength, 10)) { - return new ResponseContentLengthMismatchError() - } - - const ptr = llhttp.llhttp_get_error_reason(this.ptr) - let message = '' - if (ptr) { - const len = new Uint8Array(llhttp.memory.buffer, ptr).indexOf(0) - message = - 'Response does not match the HTTP/1.1 protocol (' + - Buffer.from(llhttp.memory.buffer, ptr, len).toString() + - ')' - } - - return new HTTPParserError(message, constants.ERROR[ret], data) - } - - destroy () { - assert(this.ptr != null) - assert(currentParser == null) - - this.llhttp.llhttp_free(this.ptr) - this.ptr = null - - this.timeout && timers.clearTimeout(this.timeout) - this.timeout = null - this.timeoutValue = null - this.timeoutType = null - - this.paused = false - } - - onStatus (buf) { - this.statusText = buf.toString() - } - - onMessageBegin () { - const { socket, client } = this - - /* istanbul ignore next: difficult to make a test case for */ - if (socket.destroyed) { - return -1 - } - - if (client[kRunning] === 0) { - util.destroy(socket, new SocketError('bad response', util.getSocketInfo(socket))) - return -1 - } - - const request = client[kQueue][client[kRunningIdx]] - if (!request) { - return -1 - } - request.onResponseStarted() - } - - onHeaderField (buf) { - const len = this.headers.length - - if ((len & 1) === 0) { - this.headers.push(buf) - } else { - this.headers[len - 1] = Buffer.concat([this.headers[len - 1], buf]) - } - - this.trackHeader(buf.length) - } - - onHeaderValue (buf) { - let len = this.headers.length - - if ((len & 1) === 1) { - this.headers.push(buf) - len += 1 - } else { - this.headers[len - 1] = Buffer.concat([this.headers[len - 1], buf]) - } - - const key = this.headers[len - 2] - if (key.length === 10) { - const headerName = util.bufferToLowerCasedHeaderName(key) - if (headerName === 'keep-alive') { - this.keepAlive += buf.toString() - } else if (headerName === 'connection') { - this.connection += buf.toString() - } - } else if (key.length === 14 && util.bufferToLowerCasedHeaderName(key) === 'content-length') { - this.contentLength += buf.toString() - } - - this.trackHeader(buf.length) - } - - trackHeader (len) { - this.headersSize += len - if (this.headersSize >= this.headersMaxSize) { - util.destroy(this.socket, new HeadersOverflowError()) - } - } - - onUpgrade (head) { - const { upgrade, client, socket, headers, statusCode } = this - - assert(upgrade) - assert(client[kSocket] === socket) - assert(!socket.destroyed) - assert(!this.paused) - assert((headers.length & 1) === 0) - - const request = client[kQueue][client[kRunningIdx]] - assert(request) - assert(request.upgrade || request.method === 'CONNECT') - - this.statusCode = null - this.statusText = '' - this.shouldKeepAlive = null - - this.headers = [] - this.headersSize = 0 - - socket.unshift(head) - - socket[kParser].destroy() - socket[kParser] = null - - socket[kClient] = null - socket[kError] = null - - removeAllListeners(socket) - - client[kSocket] = null - client[kHTTPContext] = null // TODO (fix): This is hacky... - client[kQueue][client[kRunningIdx]++] = null - client.emit('disconnect', client[kUrl], [client], new InformationalError('upgrade')) - - try { - request.onUpgrade(statusCode, headers, socket) - } catch (err) { - util.destroy(socket, err) - } - - client[kResume]() - } - - onHeadersComplete (statusCode, upgrade, shouldKeepAlive) { - const { client, socket, headers, statusText } = this - - /* istanbul ignore next: difficult to make a test case for */ - if (socket.destroyed) { - return -1 - } - - if (client[kRunning] === 0) { - util.destroy(socket, new SocketError('bad response', util.getSocketInfo(socket))) - return -1 - } - - const request = client[kQueue][client[kRunningIdx]] - - /* istanbul ignore next: difficult to make a test case for */ - if (!request) { - return -1 - } - - assert(!this.upgrade) - assert(this.statusCode < 200) - - if (statusCode === 100) { - util.destroy(socket, new SocketError('bad response', util.getSocketInfo(socket))) - return -1 - } - - /* this can only happen if server is misbehaving */ - if (upgrade && !request.upgrade) { - util.destroy(socket, new SocketError('bad upgrade', util.getSocketInfo(socket))) - return -1 - } - - assert(this.timeoutType === TIMEOUT_HEADERS) - - this.statusCode = statusCode - this.shouldKeepAlive = ( - shouldKeepAlive || - // Override llhttp value which does not allow keepAlive for HEAD. - (request.method === 'HEAD' && !socket[kReset] && this.connection.toLowerCase() === 'keep-alive') - ) - - if (this.statusCode >= 200) { - const bodyTimeout = request.bodyTimeout != null - ? request.bodyTimeout - : client[kBodyTimeout] - this.setTimeout(bodyTimeout, TIMEOUT_BODY) - } else if (this.timeout) { - // istanbul ignore else: only for jest - if (this.timeout.refresh) { - this.timeout.refresh() - } - } - - if (request.method === 'CONNECT') { - assert(client[kRunning] === 1) - this.upgrade = true - return 2 - } - - if (upgrade) { - assert(client[kRunning] === 1) - this.upgrade = true - return 2 - } - - assert((this.headers.length & 1) === 0) - this.headers = [] - this.headersSize = 0 - - if (this.shouldKeepAlive && client[kPipelining]) { - const keepAliveTimeout = this.keepAlive ? util.parseKeepAliveTimeout(this.keepAlive) : null - - if (keepAliveTimeout != null) { - const timeout = Math.min( - keepAliveTimeout - client[kKeepAliveTimeoutThreshold], - client[kKeepAliveMaxTimeout] - ) - if (timeout <= 0) { - socket[kReset] = true - } else { - client[kKeepAliveTimeoutValue] = timeout - } - } else { - client[kKeepAliveTimeoutValue] = client[kKeepAliveDefaultTimeout] - } - } else { - // Stop more requests from being dispatched. - socket[kReset] = true - } - - const pause = request.onHeaders(statusCode, headers, this.resume, statusText) === false - - if (request.aborted) { - return -1 - } - - if (request.method === 'HEAD') { - return 1 - } - - if (statusCode < 200) { - return 1 - } - - if (socket[kBlocking]) { - socket[kBlocking] = false - client[kResume]() - } - - return pause ? constants.ERROR.PAUSED : 0 - } - - onBody (buf) { - const { client, socket, statusCode, maxResponseSize } = this - - if (socket.destroyed) { - return -1 - } - - const request = client[kQueue][client[kRunningIdx]] - assert(request) - - assert(this.timeoutType === TIMEOUT_BODY) - if (this.timeout) { - // istanbul ignore else: only for jest - if (this.timeout.refresh) { - this.timeout.refresh() - } - } - - assert(statusCode >= 200) - - if (maxResponseSize > -1 && this.bytesRead + buf.length > maxResponseSize) { - util.destroy(socket, new ResponseExceededMaxSizeError()) - return -1 - } - - this.bytesRead += buf.length - - if (request.onData(buf) === false) { - return constants.ERROR.PAUSED - } - } - - onMessageComplete () { - const { client, socket, statusCode, upgrade, headers, contentLength, bytesRead, shouldKeepAlive } = this - - if (socket.destroyed && (!statusCode || shouldKeepAlive)) { - return -1 - } - - if (upgrade) { - return - } - - assert(statusCode >= 100) - assert((this.headers.length & 1) === 0) - - const request = client[kQueue][client[kRunningIdx]] - assert(request) - - this.statusCode = null - this.statusText = '' - this.bytesRead = 0 - this.contentLength = '' - this.keepAlive = '' - this.connection = '' - - this.headers = [] - this.headersSize = 0 - - if (statusCode < 200) { - return - } - - /* istanbul ignore next: should be handled by llhttp? */ - if (request.method !== 'HEAD' && contentLength && bytesRead !== parseInt(contentLength, 10)) { - util.destroy(socket, new ResponseContentLengthMismatchError()) - return -1 - } - - request.onComplete(headers) - - client[kQueue][client[kRunningIdx]++] = null - socket[kSocketUsed] = true - - if (socket[kWriting]) { - assert(client[kRunning] === 0) - // Response completed before request. - util.destroy(socket, new InformationalError('reset')) - return constants.ERROR.PAUSED - } else if (!shouldKeepAlive) { - util.destroy(socket, new InformationalError('reset')) - return constants.ERROR.PAUSED - } else if (socket[kReset] && client[kRunning] === 0) { - // Destroy socket once all requests have completed. - // The request at the tail of the pipeline is the one - // that requested reset and no further requests should - // have been queued since then. - util.destroy(socket, new InformationalError('reset')) - return constants.ERROR.PAUSED - } else if (client[kPipelining] == null || client[kPipelining] === 1) { - // We must wait a full event loop cycle to reuse this socket to make sure - // that non-spec compliant servers are not closing the connection even if they - // said they won't. - setImmediate(() => client[kResume]()) - } else { - client[kResume]() - } - } -} - -function onParserTimeout (parser) { - const { socket, timeoutType, client, paused } = parser.deref() - - /* istanbul ignore else */ - if (timeoutType === TIMEOUT_HEADERS) { - if (!socket[kWriting] || socket.writableNeedDrain || client[kRunning] > 1) { - assert(!paused, 'cannot be paused while waiting for headers') - util.destroy(socket, new HeadersTimeoutError()) - } - } else if (timeoutType === TIMEOUT_BODY) { - if (!paused) { - util.destroy(socket, new BodyTimeoutError()) - } - } else if (timeoutType === TIMEOUT_KEEP_ALIVE) { - assert(client[kRunning] === 0 && client[kKeepAliveTimeoutValue]) - util.destroy(socket, new InformationalError('socket idle timeout')) - } -} - -async function connectH1 (client, socket) { - client[kSocket] = socket - - if (!llhttpInstance) { - llhttpInstance = await llhttpPromise - llhttpPromise = null - } - - socket[kNoRef] = false - socket[kWriting] = false - socket[kReset] = false - socket[kBlocking] = false - socket[kIdleSocketValidation] = 0 - socket[kIdleSocketValidationTimeout] = null - socket[kSocketUsed] = false - socket[kParser] = new Parser(client, socket, llhttpInstance) - - addListener(socket, 'error', function (err) { - assert(err.code !== 'ERR_TLS_CERT_ALTNAME_INVALID') - - const parser = this[kParser] - - // On Mac OS, we get an ECONNRESET even if there is a full body to be forwarded - // to the user. - if (err.code === 'ECONNRESET' && parser.statusCode && !parser.shouldKeepAlive) { - const parserErr = parser.finish() - if (parserErr) { - this[kError] = parserErr - this[kClient][kOnError](parserErr) - } - return - } - - this[kError] = err - - this[kClient][kOnError](err) - }) - addListener(socket, 'readable', function () { - const parser = this[kParser] - - if (parser) { - parser.readMore() - } - }) - addListener(socket, 'end', function () { - const parser = this[kParser] - - if (parser.statusCode && !parser.shouldKeepAlive) { - const parserErr = parser.finish() - if (parserErr) { - util.destroy(this, parserErr) - } - return - } - - util.destroy(this, new SocketError('other side closed', util.getSocketInfo(this))) - }) - addListener(socket, 'close', function () { - const client = this[kClient] - const parser = this[kParser] - - clearIdleSocketValidation(this) - - if (parser) { - if (!this[kError] && parser.statusCode && !parser.shouldKeepAlive) { - this[kError] = parser.finish() || this[kError] - } - - this[kParser].destroy() - this[kParser] = null - } - - const err = this[kError] || new SocketError('closed', util.getSocketInfo(this)) - - client[kSocket] = null - client[kHTTPContext] = null // TODO (fix): This is hacky... - - if (client.destroyed) { - assert(client[kPending] === 0) - - // Fail entire queue. - const requests = client[kQueue].splice(client[kRunningIdx]) - for (let i = 0; i < requests.length; i++) { - const request = requests[i] - util.errorRequest(client, request, err) - } - } else if (client[kRunning] > 0 && err.code !== 'UND_ERR_INFO') { - // Fail head of pipeline. - const request = client[kQueue][client[kRunningIdx]] - client[kQueue][client[kRunningIdx]++] = null - - util.errorRequest(client, request, err) - } - - client[kPendingIdx] = client[kRunningIdx] - - assert(client[kRunning] === 0) - - client.emit('disconnect', client[kUrl], [client], err) - - client[kResume]() - }) - - let closed = false - socket.on('close', () => { - closed = true - }) - - return { - version: 'h1', - defaultPipelining: 1, - write (...args) { - return writeH1(client, ...args) - }, - resume () { - resumeH1(client) - }, - destroy (err, callback) { - if (closed) { - queueMicrotask(callback) - } else { - socket.destroy(err).on('close', callback) - } - }, - get destroyed () { - return socket.destroyed - }, - busy (request) { - if (socket[kWriting] || socket[kReset] || socket[kBlocking] || socket[kIdleSocketValidation] === 1) { - return true - } - - if (request) { - if (client[kRunning] > 0 && !request.idempotent) { - // Non-idempotent request cannot be retried. - // Ensure that no other requests are inflight and - // could cause failure. - return true - } - - if (client[kRunning] > 0 && (request.upgrade || request.method === 'CONNECT')) { - // Don't dispatch an upgrade until all preceding requests have completed. - // A misbehaving server might upgrade the connection before all pipelined - // request has completed. - return true - } - - if (client[kRunning] > 0 && util.bodyLength(request.body) !== 0 && - (util.isStream(request.body) || util.isAsyncIterable(request.body) || util.isFormDataLike(request.body))) { - // Request with stream or iterator body can error while other requests - // are inflight and indirectly error those as well. - // Ensure this doesn't happen by waiting for inflight - // to complete before dispatching. - - // Request with stream or iterator body cannot be retried. - // Ensure that no other requests are inflight and - // could cause failure. - return true - } - } - - return false - } - } -} - -function clearIdleSocketValidation (socket) { - if (socket[kIdleSocketValidationTimeout]) { - clearTimeout(socket[kIdleSocketValidationTimeout]) - socket[kIdleSocketValidationTimeout] = null - } - - socket[kIdleSocketValidation] = 0 -} - -function scheduleIdleSocketValidation (client, socket) { - socket[kIdleSocketValidation] = 1 - socket[kIdleSocketValidationTimeout] = setTimeout(() => { - socket[kIdleSocketValidationTimeout] = null - socket[kIdleSocketValidation] = 2 - - if (client[kSocket] === socket && !socket.destroyed) { - client[kResume]() - } - }, 0) - socket[kIdleSocketValidationTimeout].unref?.() -} - -/** - * @param {import('./client.js')} client - */ -function resumeH1 (client) { - const socket = client[kSocket] - - if (socket && !socket.destroyed) { - if (client[kSize] === 0) { - if (!socket[kNoRef] && socket.unref) { - socket.unref() - socket[kNoRef] = true - } - } else if (socket[kNoRef] && socket.ref) { - socket.ref() - socket[kNoRef] = false - } - - if (client[kRunning] === 0 && client[kPending] > 0 && socket[kSocketUsed]) { - if (socket[kIdleSocketValidation] === 0) { - scheduleIdleSocketValidation(client, socket) - socket[kParser].readMore() - if (socket.destroyed) { - return - } - return - } - - if (socket[kIdleSocketValidation] === 1) { - socket[kParser].readMore() - if (socket.destroyed) { - return - } - return - } - } - - if (client[kRunning] === 0) { - socket[kParser].readMore() - if (socket.destroyed) { - return - } - } - - if (client[kSize] === 0) { - if (socket[kParser].timeoutType !== TIMEOUT_KEEP_ALIVE) { - socket[kParser].setTimeout(client[kKeepAliveTimeoutValue], TIMEOUT_KEEP_ALIVE) - } - } else if (client[kRunning] > 0 && socket[kParser].statusCode < 200) { - if (socket[kParser].timeoutType !== TIMEOUT_HEADERS) { - const request = client[kQueue][client[kRunningIdx]] - const headersTimeout = request.headersTimeout != null - ? request.headersTimeout - : client[kHeadersTimeout] - socket[kParser].setTimeout(headersTimeout, TIMEOUT_HEADERS) - } - } - } -} - -// https://www.rfc-editor.org/rfc/rfc7230#section-3.3.2 -function shouldSendContentLength (method) { - return method !== 'GET' && method !== 'HEAD' && method !== 'OPTIONS' && method !== 'TRACE' && method !== 'CONNECT' -} - -function writeH1 (client, request) { - const { method, path, host, upgrade, blocking, reset } = request - - let { body, headers, contentLength } = request - - // https://tools.ietf.org/html/rfc7231#section-4.3.1 - // https://tools.ietf.org/html/rfc7231#section-4.3.2 - // https://tools.ietf.org/html/rfc7231#section-4.3.5 - - // Sending a payload body on a request that does not - // expect it can cause undefined behavior on some - // servers and corrupt connection state. Do not - // re-use the connection for further requests. - - const expectsPayload = ( - method === 'PUT' || - method === 'POST' || - method === 'PATCH' || - method === 'QUERY' || - method === 'PROPFIND' || - method === 'PROPPATCH' - ) - - if (util.isFormDataLike(body)) { - if (!extractBody) { - extractBody = require('../web/fetch/body.js').extractBody - } - - const [bodyStream, contentType] = extractBody(body) - if (request.contentType == null) { - headers.push('content-type', contentType) - } - body = bodyStream.stream - contentLength = bodyStream.length - } else if (util.isBlobLike(body) && request.contentType == null) { - const contentType = body.type - if (contentType) { - const contentTypeValue = `${contentType}` - if (!util.isValidHeaderValue(contentTypeValue)) { - util.errorRequest(client, request, new InvalidArgumentError('invalid content-type header')) - return false - } - headers.push('content-type', contentTypeValue) - } - } - - if (body && typeof body.read === 'function') { - // Try to read EOF in order to get length. - body.read(0) - } - - const bodyLength = util.bodyLength(body) - - contentLength = bodyLength ?? contentLength - - if (contentLength === null) { - contentLength = request.contentLength - } - - if (contentLength === 0 && !expectsPayload) { - // https://tools.ietf.org/html/rfc7230#section-3.3.2 - // A user agent SHOULD NOT send a Content-Length header field when - // the request message does not contain a payload body and the method - // semantics do not anticipate such a body. - - contentLength = null - } - - // https://github.com/nodejs/undici/issues/2046 - // A user agent may send a Content-Length header with 0 value, this should be allowed. - if (shouldSendContentLength(method) && contentLength > 0 && request.contentLength !== null && request.contentLength !== contentLength) { - if (client[kStrictContentLength]) { - util.errorRequest(client, request, new RequestContentLengthMismatchError()) - return false - } - - process.emitWarning(new RequestContentLengthMismatchError()) - } - - const socket = client[kSocket] - clearIdleSocketValidation(socket) - - const abort = (err) => { - if (request.aborted || request.completed) { - return - } - - util.errorRequest(client, request, err || new RequestAbortedError()) - - util.destroy(body) - util.destroy(socket, new InformationalError('aborted')) - } - - try { - request.onConnect(abort) - } catch (err) { - util.errorRequest(client, request, err) - } - - if (request.aborted) { - return false - } - - if (method === 'HEAD') { - // https://github.com/mcollina/undici/issues/258 - // Close after a HEAD request to interop with misbehaving servers - // that may send a body in the response. - - socket[kReset] = true - } - - if (upgrade || method === 'CONNECT') { - // On CONNECT or upgrade, block pipeline from dispatching further - // requests on this connection. - - socket[kReset] = true - } - - if (reset != null) { - socket[kReset] = reset - } - - if (client[kMaxRequests] && socket[kCounter]++ >= client[kMaxRequests]) { - socket[kReset] = true - } - - if (blocking) { - socket[kBlocking] = true - } - - let header = `${method} ${path} HTTP/1.1\r\n` - - if (typeof host === 'string') { - header += `host: ${host}\r\n` - } else { - header += client[kHostHeader] - } - - if (upgrade) { - header += `connection: upgrade\r\nupgrade: ${upgrade}\r\n` - } else if (client[kPipelining] && !socket[kReset]) { - header += 'connection: keep-alive\r\n' - } else { - header += 'connection: close\r\n' - } - - if (Array.isArray(headers)) { - for (let n = 0; n < headers.length; n += 2) { - const key = headers[n + 0] - const val = headers[n + 1] - - if (Array.isArray(val)) { - for (let i = 0; i < val.length; i++) { - header += `${key}: ${val[i]}\r\n` - } - } else { - header += `${key}: ${val}\r\n` - } - } - } - - if (channels.sendHeaders.hasSubscribers) { - channels.sendHeaders.publish({ request, headers: header, socket }) - } - - /* istanbul ignore else: assertion */ - if (!body || bodyLength === 0) { - writeBuffer(abort, null, client, request, socket, contentLength, header, expectsPayload) - } else if (util.isBuffer(body)) { - writeBuffer(abort, body, client, request, socket, contentLength, header, expectsPayload) - } else if (util.isBlobLike(body)) { - if (typeof body.stream === 'function') { - writeIterable(abort, body.stream(), client, request, socket, contentLength, header, expectsPayload) - } else { - writeBlob(abort, body, client, request, socket, contentLength, header, expectsPayload) - } - } else if (util.isStream(body)) { - writeStream(abort, body, client, request, socket, contentLength, header, expectsPayload) - } else if (util.isIterable(body)) { - writeIterable(abort, body, client, request, socket, contentLength, header, expectsPayload) - } else { - assert(false) - } - - return true -} - -function writeStream (abort, body, client, request, socket, contentLength, header, expectsPayload) { - assert(contentLength !== 0 || client[kRunning] === 0, 'stream body cannot be pipelined') - - let finished = false - - const writer = new AsyncWriter({ abort, socket, request, contentLength, client, expectsPayload, header }) - - const onData = function (chunk) { - if (finished) { - return - } - - try { - if (!writer.write(chunk) && this.pause) { - this.pause() - } - } catch (err) { - util.destroy(this, err) - } - } - const onDrain = function () { - if (finished) { - return - } - - if (body.resume) { - body.resume() - } - } - const onClose = function () { - // 'close' might be emitted *before* 'error' for - // broken streams. Wait a tick to avoid this case. - queueMicrotask(() => { - // It's only safe to remove 'error' listener after - // 'close'. - body.removeListener('error', onFinished) - }) - - if (!finished) { - const err = new RequestAbortedError() - queueMicrotask(() => onFinished(err)) - } - } - const onFinished = function (err) { - if (finished) { - return - } - - finished = true - - assert(socket.destroyed || (socket[kWriting] && client[kRunning] <= 1)) - - socket - .off('drain', onDrain) - .off('error', onFinished) - - body - .removeListener('data', onData) - .removeListener('end', onFinished) - .removeListener('close', onClose) - - if (!err) { - try { - writer.end() - } catch (er) { - err = er - } - } - - writer.destroy(err) - - if (err && (err.code !== 'UND_ERR_INFO' || err.message !== 'reset')) { - util.destroy(body, err) - } else { - util.destroy(body) - } - } - - body - .on('data', onData) - .on('end', onFinished) - .on('error', onFinished) - .on('close', onClose) - - if (body.resume) { - body.resume() - } - - socket - .on('drain', onDrain) - .on('error', onFinished) - - if (body.errorEmitted ?? body.errored) { - setImmediate(() => onFinished(body.errored)) - } else if (body.endEmitted ?? body.readableEnded) { - setImmediate(() => onFinished(null)) - } - - if (body.closeEmitted ?? body.closed) { - setImmediate(onClose) - } -} - -function writeBuffer (abort, body, client, request, socket, contentLength, header, expectsPayload) { - try { - if (!body) { - if (contentLength === 0) { - socket.write(`${header}content-length: 0\r\n\r\n`, 'latin1') - } else { - assert(contentLength === null, 'no body must not have content length') - socket.write(`${header}\r\n`, 'latin1') - } - } else if (util.isBuffer(body)) { - assert(contentLength === body.byteLength, 'buffer body must have content length') - - socket.cork() - socket.write(`${header}content-length: ${contentLength}\r\n\r\n`, 'latin1') - socket.write(body) - socket.uncork() - request.onBodySent(body) - - if (!expectsPayload && request.reset !== false) { - socket[kReset] = true - } - } - request.onRequestSent() - - client[kResume]() - } catch (err) { - abort(err) - } -} - -async function writeBlob (abort, body, client, request, socket, contentLength, header, expectsPayload) { - assert(contentLength === body.size, 'blob body must have content length') - - try { - if (contentLength != null && contentLength !== body.size) { - throw new RequestContentLengthMismatchError() - } - - const buffer = Buffer.from(await body.arrayBuffer()) - - socket.cork() - socket.write(`${header}content-length: ${contentLength}\r\n\r\n`, 'latin1') - socket.write(buffer) - socket.uncork() - - request.onBodySent(buffer) - request.onRequestSent() - - if (!expectsPayload && request.reset !== false) { - socket[kReset] = true - } - - client[kResume]() - } catch (err) { - abort(err) - } -} - -async function writeIterable (abort, body, client, request, socket, contentLength, header, expectsPayload) { - assert(contentLength !== 0 || client[kRunning] === 0, 'iterator body cannot be pipelined') - - let callback = null - function onDrain () { - if (callback) { - const cb = callback - callback = null - cb() - } - } - - const waitForDrain = () => new Promise((resolve, reject) => { - assert(callback === null) - - if (socket[kError]) { - reject(socket[kError]) - } else { - callback = resolve - } - }) - - socket - .on('close', onDrain) - .on('drain', onDrain) - - const writer = new AsyncWriter({ abort, socket, request, contentLength, client, expectsPayload, header }) - try { - // It's up to the user to somehow abort the async iterable. - for await (const chunk of body) { - if (socket[kError]) { - throw socket[kError] - } - - if (!writer.write(chunk)) { - await waitForDrain() - } - } - - writer.end() - } catch (err) { - writer.destroy(err) - } finally { - socket - .off('close', onDrain) - .off('drain', onDrain) - } -} - -class AsyncWriter { - constructor ({ abort, socket, request, contentLength, client, expectsPayload, header }) { - this.socket = socket - this.request = request - this.contentLength = contentLength - this.client = client - this.bytesWritten = 0 - this.expectsPayload = expectsPayload - this.header = header - this.abort = abort - - socket[kWriting] = true - } - - write (chunk) { - const { socket, request, contentLength, client, bytesWritten, expectsPayload, header } = this - - if (socket[kError]) { - throw socket[kError] - } - - if (socket.destroyed) { - return false - } - - const len = Buffer.byteLength(chunk) - if (!len) { - return true - } - - // We should defer writing chunks. - if (contentLength !== null && bytesWritten + len > contentLength) { - if (client[kStrictContentLength]) { - throw new RequestContentLengthMismatchError() - } - - process.emitWarning(new RequestContentLengthMismatchError()) - } - - socket.cork() - - if (bytesWritten === 0) { - if (!expectsPayload && request.reset !== false) { - socket[kReset] = true - } - - if (contentLength === null) { - socket.write(`${header}transfer-encoding: chunked\r\n`, 'latin1') - } else { - socket.write(`${header}content-length: ${contentLength}\r\n\r\n`, 'latin1') - } - } - - if (contentLength === null) { - socket.write(`\r\n${len.toString(16)}\r\n`, 'latin1') - } - - this.bytesWritten += len - - const ret = socket.write(chunk) - - socket.uncork() - - request.onBodySent(chunk) - - if (!ret) { - if (socket[kParser].timeout && socket[kParser].timeoutType === TIMEOUT_HEADERS) { - // istanbul ignore else: only for jest - if (socket[kParser].timeout.refresh) { - socket[kParser].timeout.refresh() - } - } - } - - return ret - } - - end () { - const { socket, contentLength, client, bytesWritten, expectsPayload, header, request } = this - request.onRequestSent() - - socket[kWriting] = false - - if (socket[kError]) { - throw socket[kError] - } - - if (socket.destroyed) { - return - } - - if (bytesWritten === 0) { - if (expectsPayload) { - // https://tools.ietf.org/html/rfc7230#section-3.3.2 - // A user agent SHOULD send a Content-Length in a request message when - // no Transfer-Encoding is sent and the request method defines a meaning - // for an enclosed payload body. - - socket.write(`${header}content-length: 0\r\n\r\n`, 'latin1') - } else { - socket.write(`${header}\r\n`, 'latin1') - } - } else if (contentLength === null) { - socket.write('\r\n0\r\n\r\n', 'latin1') - } - - if (contentLength !== null && bytesWritten !== contentLength) { - if (client[kStrictContentLength]) { - throw new RequestContentLengthMismatchError() - } else { - process.emitWarning(new RequestContentLengthMismatchError()) - } - } - - if (socket[kParser].timeout && socket[kParser].timeoutType === TIMEOUT_HEADERS) { - // istanbul ignore else: only for jest - if (socket[kParser].timeout.refresh) { - socket[kParser].timeout.refresh() - } - } - - client[kResume]() - } - - destroy (err) { - const { socket, client, abort } = this - - socket[kWriting] = false - - if (err) { - assert(client[kRunning] <= 1, 'pipeline should only contain this request') - abort(err) - } - } -} - -module.exports = connectH1 |