From 9a82b222adb798d3b274f91b3894c4c1895d8a2e Mon Sep 17 00:00:00 2001 From: Sven Slootweg Date: Tue, 18 Feb 2020 00:30:38 +0100 Subject: [PATCH] Reorganize, remove Coffeescript/Gulp/Lodash/string --- .babelrc.json | 5 + .browserslistrc | 1 + .eslintrc | 3 + .gitignore | 1 + CHANGELOG.md | 9 +- gulpfile.js | 28 - index.coffee | 1 - index.js | 2 + lib/bhttp.coffee | 654 ---- lib/bhttp.js | 823 +++-- package.json | 26 +- src/bhttp.js | 768 +++++ test-bhttp.coffee => test/test-bhttp.coffee | 0 .../test-cookies.coffee | 0 test/test-exit.coffee | 14 + test/test-exit2.js | 36 + .../test-https-stream.coffee | 0 test-leak.coffee => test/test-leak.coffee | 0 .../test-progress.coffee | 0 .../test-timeout.coffee | 0 testcase1.js => test/testcase1.js | 0 yarn.lock | 2728 +++++++++++++++++ 22 files changed, 4077 insertions(+), 1022 deletions(-) create mode 100644 .babelrc.json create mode 100644 .browserslistrc create mode 100644 .eslintrc delete mode 100644 gulpfile.js delete mode 100644 index.coffee delete mode 100644 lib/bhttp.coffee create mode 100644 src/bhttp.js rename test-bhttp.coffee => test/test-bhttp.coffee (100%) rename test-cookies.coffee => test/test-cookies.coffee (100%) create mode 100644 test/test-exit.coffee create mode 100644 test/test-exit2.js rename test-https-stream.coffee => test/test-https-stream.coffee (100%) rename test-leak.coffee => test/test-leak.coffee (100%) rename test-progress.coffee => test/test-progress.coffee (100%) rename test-timeout.coffee => test/test-timeout.coffee (100%) rename testcase1.js => test/testcase1.js (100%) create mode 100644 yarn.lock diff --git a/.babelrc.json b/.babelrc.json new file mode 100644 index 0000000..199d10a --- /dev/null +++ b/.babelrc.json @@ -0,0 +1,5 @@ +{ + "presets": [ + [ "@babel/preset-env" ] + ] +} diff --git a/.browserslistrc b/.browserslistrc new file mode 100644 index 0000000..a00bc5a --- /dev/null +++ b/.browserslistrc @@ -0,0 +1 @@ +node 0.10 diff --git a/.eslintrc b/.eslintrc new file mode 100644 index 0000000..b0108ff --- /dev/null +++ b/.eslintrc @@ -0,0 +1,3 @@ +{ + "extends": "@joepie91/eslint-config" +} diff --git a/.gitignore b/.gitignore index 0055fb4..b68c563 100644 --- a/.gitignore +++ b/.gitignore @@ -4,3 +4,4 @@ /node_modules/ /test-exit2.js /test-exit.coffee +yarn-error.log diff --git a/CHANGELOG.md b/CHANGELOG.md index 8f13d4e..e95052c 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,3 +1,10 @@ +## 1.2.5 (February 18, 2020) + +* __Patch:__ Removed Lodash and `string` dependencies, to resolve audit warnings +* __Patch:__ Removed CoffeeScript usage +* __Patch:__ Removed Gulp +* __Patch:__ Cleaned up file structure a bit + ## 1.2.4 (August 16, 2016) * __Documentation:__ Added this changelog. @@ -60,4 +67,4 @@ ## 1.0.0 (January 23, 2015) -* Initial release \ No newline at end of file +* Initial release diff --git a/gulpfile.js b/gulpfile.js deleted file mode 100644 index bb7f05f..0000000 --- a/gulpfile.js +++ /dev/null @@ -1,28 +0,0 @@ -var gulp = require('gulp'); - -/* CoffeeScript compile deps */ -var path = require('path'); -var gutil = require('gulp-util'); -var concat = require('gulp-concat'); -var rename = require('gulp-rename'); -var coffee = require('gulp-coffee'); -var cache = require('gulp-cached'); -var remember = require('gulp-remember'); -var plumber = require('gulp-plumber'); - -var source = ["lib/**/*.coffee", "index.coffee"] - -gulp.task('coffee', function() { - return gulp.src(source, {base: "."}) - .pipe(plumber()) - .pipe(cache("coffee")) - .pipe(coffee({bare: true}).on('error', gutil.log)).on('data', gutil.log) - .pipe(remember("coffee")) - .pipe(gulp.dest(".")); -}); - -gulp.task('watch', function () { - gulp.watch(source, ['coffee']); -}); - -gulp.task('default', ['coffee', 'watch']); \ No newline at end of file diff --git a/index.coffee b/index.coffee deleted file mode 100644 index cdcd558..0000000 --- a/index.coffee +++ /dev/null @@ -1 +0,0 @@ -module.exports = require "./lib/bhttp" \ No newline at end of file diff --git a/index.js b/index.js index eeff712..e93bc93 100644 --- a/index.js +++ b/index.js @@ -1 +1,3 @@ +"use strict"; + module.exports = require("./lib/bhttp"); diff --git a/lib/bhttp.coffee b/lib/bhttp.coffee deleted file mode 100644 index 77331e2..0000000 --- a/lib/bhttp.coffee +++ /dev/null @@ -1,654 +0,0 @@ -# FIXME: Force-lowercase user-supplied headers before merging them into the request? -# FIXME: Deep-merge query-string arguments between URL and argument? -# FIXME: Named arrays for multipart/form-data? -# FIXME: Are arrays of streams in `data` correctly recognized as being streams? - -# Core modules -urlUtil = require "url" -querystring = require "querystring" -stream = require "stream" -http = require "http" -https = require "https" -util = require "util" - -# Utility modules -Promise = require "bluebird" -_ = require "lodash" -S = require "string" -formFixArray = require "form-fix-array" -errors = require "errors" -debug = require("debug") -debugRequest = debug("bhttp:request") -debugResponse = debug("bhttp:response") -extend = require "extend" -devNull = require "dev-null" - -# Other third-party modules -formData = require "form-data2" -concatStream = require "concat-stream" -toughCookie = require "tough-cookie" -streamLength = require "stream-length" -sink = require "through2-sink" -spy = require "through2-spy" - -# For the version in the user agent, etc. -packageConfig = require "../package.json" - -bhttpErrors = {} - -# Error types - -errors.create - name: "bhttpError" - scope: bhttpErrors - -errors.create - name: "ConflictingOptionsError" - parents: bhttpErrors.bhttpError - scope: bhttpErrors - -errors.create - name: "UnsupportedProtocolError" - parents: bhttpErrors.bhttpError - scope: bhttpErrors - -errors.create - name: "RedirectError" - parents: bhttpErrors.bhttpError - scope: bhttpErrors - -errors.create - name: "MultipartError" - parents: bhttpErrors.bhttpError - scope: bhttpErrors - -errors.create - name: "ConnectionTimeoutError" - parents: bhttpErrors.bhttpError - scope: bhttpErrors - -errors.create - name: "ResponseTimeoutError" - parents: bhttpErrors.bhttpError - scope: bhttpErrors - -# Utility functions - -ofTypes = (obj, types) -> - match = false - for type in types - match = match or obj instanceof type - return match - -addErrorData = (err, request, response, requestState) -> - err.request = request - err.response = response - err.requestState = requestState - return err - -isStream = (obj) -> - obj? and (ofTypes(obj, [stream.Readable, stream.Duplex, stream.Transform]) or obj.hasOwnProperty("_bhttpStreamWrapper")) - -# Middleware -# NOTE: requestState is an object that signifies the current state of the overall request; eg. for a response involving one or more redirects, it will hold a 'redirect history'. -prepareSession = (request, response, requestState) -> - debugRequest "preparing session" - Promise.try -> - if requestState.sessionOptions? - # Request options take priority over session options - request.options = _.merge _.clone(requestState.sessionOptions), request.options - - # Create a headers parameter if it doesn't exist yet - we'll need to add some stuff to this later on - # FIXME: We may need to do a deep-clone of other mutable options later on as well; otherwise, when getting a redirect in a session with pre-defined options, the contents may not be correctly cleared after following the redirect. - if request.options.headers? - request.options.headers = _.clone(request.options.headers, true) - else - request.options.headers = {} - - # If we have a cookie jar, start out by setting the cookie string. - if request.options.cookieJar? - Promise.try -> - # Move the cookieJar to the request object, the http/https module doesn't need it. - request.cookieJar = request.options.cookieJar - delete request.options.cookieJar - - # Get the current cookie string for the URL - request.cookieJar.get request.url - .then (cookieString) -> - debugRequest "sending cookie string: %s", cookieString - request.options.headers["cookie"] = cookieString - Promise.resolve [request, response, requestState] - else - Promise.resolve [request, response, requestState] - -prepareDefaults = (request, response, requestState) -> - debugRequest "preparing defaults" - Promise.try -> - # These are the options that we need for response processing, but don't need to be passed on to the http/https module. - request.responseOptions = - discardResponse: request.options.discardResponse ? false - keepRedirectResponses: request.options.keepRedirectResponses ? false - followRedirects: request.options.followRedirects ? true - noDecode: request.options.noDecode ? false - decodeJSON: request.options.decodeJSON ? false - stream: request.options.stream ? false - justPrepare: request.options.justPrepare ? false - redirectLimit: request.options.redirectLimit ? 10 - onDownloadProgress: request.options.onDownloadProgress - responseTimeout: request.options.responseTimeout - - # Whether chunked transfer encoding for multipart/form-data payloads is acceptable. This is likely to break quietly on a lot of servers. - request.options.allowChunkedMultipart ?= false - - # Whether we should always use multipart/form-data for payloads, even if querystring-encoding would be a possibility. - request.options.forceMultipart ?= false - - # If no custom user-agent is defined, set our own - request.options.headers["user-agent"] ?= "bhttp/#{packageConfig.version}" - - # Normalize the request method to lowercase. - request.options.method = request.options.method.toLowerCase() - - Promise.resolve [request, response, requestState] - -prepareUrl = (request, response, requestState) -> - debugRequest "preparing URL" - Promise.try -> - # Parse the specified URL, and use the resulting information to build a complete `options` object - urlOptions = urlUtil.parse request.url, true - - _.extend request.options, {hostname: urlOptions.hostname, port: urlOptions.port} - request.options.path = urlUtil.format {pathname: urlOptions.pathname, query: request.options.query ? urlOptions.query} - request.protocol = S(urlOptions.protocol).chompRight(":").toString() - - Promise.resolve [request, response, requestState] - -prepareProtocol = (request, response, requestState) -> - debugRequest "preparing protocol" - Promise.try -> - request.protocolModule = switch request.protocol - when "http" then http - when "https" then https # CAUTION / FIXME: Node will silently ignore SSL settings without a custom agent! - else null - - if not request.protocolModule? - return Promise.reject() new bhttpErrors.UnsupportedProtocolError "The protocol specified (#{protocol}) is not currently supported by this module." - - request.options.port ?= switch request.protocol - when "http" then 80 - when "https" then 443 - - Promise.resolve [request, response, requestState] - -prepareOptions = (request, response, requestState) -> - debugRequest "preparing options" - Promise.try -> - # Do some sanity checks - there are a number of options that cannot be used together - if (request.options.formFields? or request.options.files?) and (request.options.inputStream? or request.options.inputBuffer?) - return Promise.reject addErrorData(new bhttpErrors.ConflictingOptionsError("You cannot define both formFields/files and a raw inputStream or inputBuffer."), request, response, requestState) - - if request.options.encodeJSON and (request.options.inputStream? or request.options.inputBuffer?) - return Promise.reject addErrorData(new bhttpErrors.ConflictingOptionsError("You cannot use both encodeJSON and a raw inputStream or inputBuffer.", undefined, "If you meant to JSON-encode the stream, you will currently have to do so manually."), request, response, requestState) - - # If the user plans on streaming the response, we need to disable the agent entirely - otherwise the streams will block the pool. - if request.responseOptions.stream - request.options.agent ?= false - - Promise.resolve [request, response, requestState] - -preparePayload = (request, response, requestState) -> - debugRequest "preparing payload" - Promise.try -> - # Persist the download progress event handler on the request object, if there is one. - request.onUploadProgress = request.options.onUploadProgress - - # If a 'files' parameter is present, then we will send the form data as multipart data - it's most likely binary data. - multipart = request.options.forceMultipart or request.options.files? - - # Similarly, if any of the formFields values are either a Stream or a Buffer, we will assume that the form should be sent as multipart. - multipart = multipart or _.any request.options.formFields, (item) -> - item instanceof Buffer or isStream(item) - - # Really, 'files' and 'formFields' are the same thing - they mostly have different names for 1) clarity and 2) multipart detection. We combine them here. - _.extend request.options.formFields, request.options.files - - # For a last sanity check, we want to know whether there are any Stream objects in our form data *at all* - these can't be used when encodeJSON is enabled. - containsStreams = _.any request.options.formFields, (item) -> isStream(item) - - if request.options.encodeJSON and containsStreams - return Promise.reject() new bhttpErrors.ConflictingOptionsError "Sending a JSON-encoded payload containing data from a stream is not currently supported.", undefined, "Either don't use encodeJSON, or read your stream into a string or Buffer." - - if request.options.method not in ["get", "head", "delete"] - # Prepare the payload, and set the appropriate headers. - if (request.options.encodeJSON or request.options.formFields?) and not multipart - # We know the payload and its size in advance. - debugRequest "got url-encodable form-data" - - if request.options.encodeJSON - debugRequest "... but encodeJSON was set, so we will send JSON instead" - request.options.headers["content-type"] = "application/json" - request.payload = JSON.stringify request.options.formFields ? null - else if not _.isEmpty request.options.formFields - # The `querystring` module copies the key name verbatim, even if the value is actually an array. Things like PHP don't understand this, and expect every array-containing key to be suffixed with []. We'll just append that ourselves, then. - request.options.headers["content-type"] = "application/x-www-form-urlencoded" - request.payload = querystring.stringify formFixArray(request.options.formFields) - else - request.payload = "" - - request.options.headers["content-length"] = request.payload.length - - return Promise.resolve() - else if request.options.formFields? and multipart - # This is going to be multipart data, and we'll let `form-data` set the headers for us. - debugRequest "got multipart form-data" - formDataObject = new formData() - - for fieldName, fieldValue of formFixArray(request.options.formFields) - if not _.isArray fieldValue - fieldValue = [fieldValue] - - for valueElement in fieldValue - if valueElement._bhttpStreamWrapper? - streamOptions = valueElement.options - valueElement = valueElement.stream - else - streamOptions = {} - - formDataObject.append fieldName, valueElement, streamOptions - - request.payloadStream = formDataObject - - Promise.try -> - formDataObject.getHeaders() - .then (headers) -> - if headers["content-transfer-encoding"] == "chunked" and not request.options.allowChunkedMultipart - Promise.reject addErrorData(new MultipartError("Most servers do not support chunked transfer encoding for multipart/form-data payloads, and we could not determine the length of all the input streams. See the documentation for more information."), request, response, requestState) - else - _.extend request.options.headers, headers - Promise.resolve() - else if request.options.inputStream? - # A raw inputStream was provided, just leave it be. - debugRequest "got inputStream" - Promise.try -> - request.payloadStream = request.options.inputStream - - if request.payloadStream._bhttpStreamWrapper? and (request.payloadStream.options.contentLength? or request.payloadStream.options.knownLength?) - Promise.resolve(request.payloadStream.options.contentLength ? request.payloadStream.options.knownLength) - else - streamLength request.options.inputStream - .then (length) -> - debugRequest "length for inputStream is %s", length - request.options.headers["content-length"] = length - .catch (err) -> - debugRequest "unable to determine inputStream length, switching to chunked transfer encoding" - request.options.headers["content-transfer-encoding"] = "chunked" - else if request.options.inputBuffer? - # A raw inputBuffer was provided, just leave it be (but make sure it's an actual Buffer). - debugRequest "got inputBuffer" - if typeof request.options.inputBuffer == "string" - request.payload = new Buffer(request.options.inputBuffer) # Input string should be utf-8! - else - request.payload = request.options.inputBuffer - - debugRequest "length for inputBuffer is %s", request.payload.length - request.options.headers["content-length"] = request.payload.length - - return Promise.resolve() - else - # No payload specified. - return Promise.resolve() - else - # GET, HEAD and DELETE should not have a payload. While technically not prohibited by the spec, it's also not specified, and we'd rather not upset poorly-compliant webservers. - # FIXME: Should this throw an Error? - return Promise.resolve() - .then -> - Promise.resolve [request, response, requestState] - -prepareCleanup = (request, response, requestState) -> - debugRequest "preparing cleanup" - Promise.try -> - # Remove the options that we're not going to pass on to the actual http/https library. - delete request.options[key] for key in ["query", "formFields", "files", "encodeJSON", "inputStream", "inputBuffer", "discardResponse", "keepRedirectResponses", "followRedirects", "noDecode", "decodeJSON", "allowChunkedMultipart", "forceMultipart", "onUploadProgress", "onDownloadProgress"] - - # Lo-Dash apparently has no `map` equivalent for object keys...? - fixedHeaders = {} - for key, value of request.options.headers - fixedHeaders[key.toLowerCase()] = value - request.options.headers = fixedHeaders - - Promise.resolve [request, response, requestState] - -# The guts of the module - -prepareRequest = (request, response, requestState) -> - debugRequest "preparing request" - # FIXME: Mock httpd for testing functionality. - Promise.try -> - middlewareFunctions = [ - prepareSession - prepareDefaults - prepareUrl - prepareProtocol - prepareOptions - preparePayload - prepareCleanup - ] - - promiseChain = Promise.resolve [request, response, requestState] - - middlewareFunctions.forEach (middleware) -> # We must use the functional construct here, to avoid losing references - promiseChain = promiseChain.spread (_request, _response, _requestState) -> - middleware(_request, _response, _requestState) - - return promiseChain - -makeRequest = (request, response, requestState) -> - debugRequest "making %s request to %s", request.options.method.toUpperCase(), request.url - Promise.try -> - # Instantiate a regular HTTP/HTTPS request - req = request.protocolModule.request request.options - - timeoutTimer = null - - new Promise (resolve, reject) -> - # Connection timeout handling, if one is set. - if request.responseOptions.responseTimeout? - debugRequest "setting response timeout timer to #{request.responseOptions.responseTimeout}ms..." - req.on "socket", (socket) -> - timeoutHandler = -> - debugRequest "a response timeout occurred!" - req.abort() - reject addErrorData(new bhttpErrors.ResponseTimeoutError("The response timed out.")) - - timeoutTimer = setTimeout(timeoutHandler, request.responseOptions.responseTimeout) - - # Set up the upload progress monitoring. - totalBytes = request.options.headers["content-length"] - completedBytes = 0 - - progressStream = spy (chunk) -> - completedBytes += chunk.length - req.emit "progress", completedBytes, totalBytes - - if request.onUploadProgress? - req.on "progress", (completedBytes, totalBytes) -> - request.onUploadProgress(completedBytes, totalBytes, req) - - # This is where we write our payload or stream to the request, and the actual request is made. - if request.payload? - # The entire payload is a single Buffer. We'll still pretend that it's a stream for our progress events, though, to provide a consistent API. - debugRequest "sending payload" - req.emit "progress", request.payload.length, request.payload.length - req.write request.payload - req.end() - else if request.payloadStream? - # The payload is a stream. - debugRequest "piping payloadStream" - if request.payloadStream._bhttpStreamWrapper? - request.payloadStream.stream - .pipe progressStream - .pipe req - else - request.payloadStream - .pipe progressStream - .pipe req - else - # For GET, HEAD, DELETE, etc. there is no payload, but we still need to call end() to complete the request. - debugRequest "closing request without payload" - req.end() - - # In case something goes wrong during this process, somehow... - req.on "error", (err) -> - if err.code == "ETIMEDOUT" - debugRequest "a connection timeout occurred!" - reject addErrorData(new bhttpErrors.ConnectionTimeoutError("The connection timed out.")) - else - reject err - - req.on "response", (res) -> - if timeoutTimer? - debugResponse "got response in time, clearing response timeout timer" - clearTimeout(timeoutTimer) - resolve res - .then (response) -> - Promise.resolve [request, response, requestState] - -processResponse = (request, response, requestState) -> - debugResponse "processing response, got status code %s", response.statusCode - - # When we receive the response, we'll buffer it up and/or decode it, depending on what the user specified, and resolve the returned Promise. If the user just wants the raw stream, we resolve immediately after receiving a response. - - Promise.try -> - # First, if a cookie jar is set and we received one or more cookies from the server, we should store them in our cookieJar. - if request.cookieJar? and response.headers["set-cookie"]? - promises = for cookieHeader in response.headers["set-cookie"] - debugResponse "storing cookie: %s", cookieHeader - request.cookieJar.set cookieHeader, request.url - Promise.all promises - else - Promise.resolve() - .then -> - # Now the actual response processing. - response.request = request - response.requestState = requestState - response.redirectHistory = requestState.redirectHistory - - if response.statusCode in [301, 302, 303, 307] and request.responseOptions.followRedirects - if requestState.redirectHistory.length >= (request.responseOptions.redirectLimit - 1) - return Promise.reject addErrorData(new bhttpErrors.RedirectError("The maximum amount of redirects ({request.responseOptions.redirectLimit}) was reached.")) - - # 301: For GET and HEAD, redirect unchanged. For POST, PUT, PATCH, DELETE, "ask user" (in our case: throw an error.) - # 302: Redirect, change method to GET. - # 303: Redirect, change method to GET. - # 307: Redirect, retain method. Make same request again. - switch response.statusCode - when 301 - switch request.options.method - when "get", "head" - return redirectUnchanged request, response, requestState - when "post", "put", "patch", "delete" - return Promise.reject addErrorData(new bhttpErrors.RedirectError("Encountered a 301 redirect for POST, PUT, PATCH or DELETE. RFC says we can't automatically continue."), request, response, requestState) - else - return Promise.reject addErrorData(new bhttpErrors.RedirectError("Encountered a 301 redirect, but not sure how to proceed for the #{request.options.method.toUpperCase()} method.")) - when 302, 303 - return redirectGet request, response, requestState - when 307 - if request.containsStreams and request.options.method not in ["get", "head"] - return Promise.reject addErrorData(new bhttpErrors.RedirectError("Encountered a 307 redirect for POST, PUT or DELETE, but your payload contained (single-use) streams. We therefore can't automatically follow the redirect."), request, response, requestState) - else - return redirectUnchanged request, response, requestState - else if request.responseOptions.discardResponse - response.pipe(devNull()) # Drain the response stream - Promise.resolve response - else - totalBytes = response.headers["content-length"] - if totalBytes? # Otherwise `undefined` will turn into `NaN`, and we don't want that. - totalBytes = parseInt(totalBytes) - completedBytes = 0 - - progressStream = sink (chunk) -> - completedBytes += chunk.length - response.emit "progress", completedBytes, totalBytes - - if request.responseOptions.onDownloadProgress? - response.on "progress", (completedBytes, totalBytes) -> - request.responseOptions.onDownloadProgress(completedBytes, totalBytes, response) - - new Promise (resolve, reject) -> - # This is a very, very dirty hack - however, using .pipe followed by .pause breaks in Node.js v0.10.35 with "Cannot switch to old mode now". Our solution is to monkeypatch the `on` and `resume` methods to attach the progress event handler as soon as something else is attached to the response stream (or when it is drained). This way, a user can also pipe the response in a later tick, without the stream draining prematurely. - _resume = response.resume.bind(response) - _on = response.on.bind(response) - _progressStreamAttached = false - - attachProgressStream = -> - # To keep this from sending us into an infinite loop. - if not _progressStreamAttached - debugResponse "attaching progress stream" - _progressStreamAttached = true - response.pipe(progressStream) - - response.on = (eventName, handler) -> - debugResponse "'on' called, #{eventName}" - if eventName == "data" or eventName == "readable" - attachProgressStream() - _on(eventName, handler) - - response.resume = -> - attachProgressStream() - _resume() - - # Continue with the regular response processing. - if request.responseOptions.stream - resolve response - else - response.on "error", (err) -> - reject err - - response.pipe concatStream (body) -> - # FIXME: Separate module for header parsing? - if request.responseOptions.decodeJSON or ((response.headers["content-type"] ? "").split(";")[0] == "application/json" and not request.responseOptions.noDecode) - try - response.body = JSON.parse body - catch err - reject err - else - response.body = body - - resolve response - - .then (response) -> - Promise.resolve [request, response, requestState] - -# Some wrappers - -doPayloadRequest = (url, data, options, callback) -> - # A wrapper that processes the second argument to .post, .put, .patch shorthand API methods. - # FIXME: Treat a {} for data as a null? Otherwise {} combined with inputBuffer/inputStream will error. - if isStream(data) - options.inputStream = data - else if ofTypes(data, [Buffer]) or typeof data == "string" - options.inputBuffer = data - else - options.formFields = data - - @request url, options, callback - -redirectGet = (request, response, requestState) -> - debugResponse "following forced-GET redirect to %s", response.headers["location"] - Promise.try -> - options = _.clone(requestState.originalOptions) - options.method = "get" - - delete options[key] for key in ["inputBuffer", "inputStream", "files", "formFields"] - - doRedirect request, response, requestState, options - -redirectUnchanged = (request, response, requestState) -> - debugResponse "following same-method redirect to %s", response.headers["location"] - Promise.try -> - options = _.clone(requestState.originalOptions) - doRedirect request, response, requestState, options - -doRedirect = (request, response, requestState, newOptions) -> - Promise.try -> - if not request.responseOptions.keepRedirectResponses - response.pipe(devNull()) # Let the response stream drain out... - - requestState.redirectHistory.push response - bhttpAPI._doRequest urlUtil.resolve(request.url, response.headers["location"]), newOptions, requestState - -createCookieJar = (jar) -> - # Creates a cookie jar wrapper with a simplified API. - return { - set: (cookie, url) -> - new Promise (resolve, reject) => - @jar.setCookie cookie, url, (err, cookie) -> - if err then reject(err) else resolve(cookie) - get: (url) -> - new Promise (resolve, reject) => - @jar.getCookieString url, (err, cookies) -> - if err then reject(err) else resolve(cookies) - jar: jar - } - -# The exposed API - -bhttpAPI = - head: (url, options = {}, callback) -> - options.method = "head" - @request url, options, callback - get: (url, options = {}, callback) -> - options.method = "get" - @request url, options, callback - post: (url, data, options = {}, callback) -> - options.method = "post" - doPayloadRequest.bind(this) url, data, options, callback - put: (url, data, options = {}, callback) -> - options.method = "put" - doPayloadRequest.bind(this) url, data, options, callback - patch: (url, data, options = {}, callback) -> - options.method = "patch" - doPayloadRequest.bind(this) url, data, options, callback - delete: (url, options = {}, callback) -> - options.method = "delete" - @request url, options, callback - request: (url, options = {}, callback) -> - @_doRequest(url, options).nodeify(callback) - _doRequest: (url, options, requestState) -> - # This is split from the `request` method, so that the user doesn't have to pass in `undefined` for the `requestState` when they want to specify a `callback`. - Promise.try => - request = {url: url, options: _.clone(options)} - response = null - requestState ?= {originalOptions: _.clone(options), redirectHistory: []} - requestState.sessionOptions ?= @_sessionOptions ? {} - - prepareRequest request, response, requestState - .spread (request, response, requestState) => - if request.responseOptions.justPrepare - Promise.resolve [request, response, requestState] - else - Promise.try -> - bhttpAPI.executeRequest request, response, requestState - .spread (request, response, requestState) -> - # The user likely only wants the response. - Promise.resolve response - executeRequest: (request, response, requestState) -> - # Executes a pre-configured request. - Promise.try -> - makeRequest request, response, requestState - .spread (request, response, requestState) -> - processResponse request, response, requestState - session: (options) -> - options ?= {} - options = _.clone options - session = {} - - for key, value of this - if value instanceof Function - value = value.bind(session) - session[key] = value - - if not options.cookieJar? - options.cookieJar = createCookieJar(new toughCookie.CookieJar()) - else if options.cookieJar == false - delete options.cookieJar - else - # Assume we've gotten a cookie jar. - options.cookieJar = createCookieJar(options.cookieJar) - - session._sessionOptions = options - - return session - wrapStream: (stream, options) -> - # This is a method for wrapping a stream in an object that also contains metadata. - return { - _bhttpStreamWrapper: true - stream: stream - options: options - } - -extend(bhttpAPI, bhttpErrors) - -module.exports = bhttpAPI - -# That's all, folks! diff --git a/lib/bhttp.js b/lib/bhttp.js index 6f90a5f..509b15f 100644 --- a/lib/bhttp.js +++ b/lib/bhttp.js @@ -1,133 +1,163 @@ -// Generated by CoffeeScript 1.9.3 -var Promise, S, _, addErrorData, bhttpAPI, bhttpErrors, concatStream, createCookieJar, debug, debugRequest, debugResponse, devNull, doPayloadRequest, doRedirect, errors, extend, formData, formFixArray, http, https, isStream, makeRequest, ofTypes, packageConfig, prepareCleanup, prepareDefaults, prepareOptions, preparePayload, prepareProtocol, prepareRequest, prepareSession, prepareUrl, processResponse, querystring, redirectGet, redirectUnchanged, sink, spy, stream, streamLength, toughCookie, urlUtil, util; +"use strict"; // FIXME: Force-lowercase user-supplied headers before merging them into the request? +// FIXME: Deep-merge query-string arguments between URL and argument? +// FIXME: Named arrays for multipart/form-data? +// FIXME: Are arrays of streams in `data` correctly recognized as being streams? +// Core modules -urlUtil = require("url"); +var urlUtil = require("url"); -querystring = require("querystring"); +var querystring = require("querystring"); -stream = require("stream"); +var stream = require("stream"); -http = require("http"); +var http = require("http"); -https = require("https"); +var https = require("https"); // Utility modules -util = require("util"); -Promise = require("bluebird"); +var Promise = require("bluebird"); -_ = require("lodash"); +var formFixArray = require("form-fix-array"); -S = require("string"); +var errors = require("errors"); -formFixArray = require("form-fix-array"); +var debug = require("debug"); -errors = require("errors"); +var debugRequest = debug("bhttp:request"); +var debugResponse = debug("bhttp:response"); -debug = require("debug"); +var extend = require("extend"); -debugRequest = debug("bhttp:request"); +var devNull = require("dev-null"); -debugResponse = debug("bhttp:response"); +var deepClone = require("lodash.clonedeep"); -extend = require("extend"); +var deepMerge = require("lodash.merge"); // Other third-party modules -devNull = require("dev-null"); -formData = require("form-data2"); +var formData = require("form-data2"); -concatStream = require("concat-stream"); +var concatStream = require("concat-stream"); -toughCookie = require("tough-cookie"); +var toughCookie = require("tough-cookie"); -streamLength = require("stream-length"); +var streamLength = require("stream-length"); -sink = require("through2-sink"); +var sink = require("through2-sink"); -spy = require("through2-spy"); +var spy = require("through2-spy"); // For the version in the user agent, etc. -packageConfig = require("../package.json"); -bhttpErrors = {}; +var packageConfig = require("../package.json"); + +var bhttpErrors = {}; // Error types errors.create({ name: "bhttpError", scope: bhttpErrors }); - errors.create({ name: "ConflictingOptionsError", parents: bhttpErrors.bhttpError, scope: bhttpErrors }); - errors.create({ name: "UnsupportedProtocolError", parents: bhttpErrors.bhttpError, scope: bhttpErrors }); - errors.create({ name: "RedirectError", parents: bhttpErrors.bhttpError, scope: bhttpErrors }); - errors.create({ name: "MultipartError", parents: bhttpErrors.bhttpError, scope: bhttpErrors }); - errors.create({ name: "ConnectionTimeoutError", parents: bhttpErrors.bhttpError, scope: bhttpErrors }); - errors.create({ name: "ResponseTimeoutError", parents: bhttpErrors.bhttpError, scope: bhttpErrors -}); - -ofTypes = function(obj, types) { - var i, len, match, type; - match = false; - for (i = 0, len = types.length; i < len; i++) { - type = types[i]; - match = match || obj instanceof type; +}); // Utility functions + +function shallowClone(object) { + return Object.assign({}, object); +} + +var ofTypes = function ofTypes(obj, types) { + var match = false; + var _iteratorNormalCompletion = true; + var _didIteratorError = false; + var _iteratorError = undefined; + + try { + for (var _iterator = types[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) { + var type = _step.value; + match = match || obj instanceof type; + } + } catch (err) { + _didIteratorError = true; + _iteratorError = err; + } finally { + try { + if (!_iteratorNormalCompletion && _iterator.return != null) { + _iterator.return(); + } + } finally { + if (_didIteratorError) { + throw _iteratorError; + } + } } + return match; }; -addErrorData = function(err, request, response, requestState) { +var addErrorData = function addErrorData(err, request, response, requestState) { err.request = request; err.response = response; err.requestState = requestState; return err; }; -isStream = function(obj) { - return (obj != null) && (ofTypes(obj, [stream.Readable, stream.Duplex, stream.Transform]) || obj.hasOwnProperty("_bhttpStreamWrapper")); -}; +var isStream = function isStream(obj) { + return obj != null && (ofTypes(obj, [stream.Readable, stream.Duplex, stream.Transform]) || obj.hasOwnProperty("_bhttpStreamWrapper")); +}; // Middleware +// NOTE: requestState is an object that signifies the current state of the overall request; eg. for a response involving one or more redirects, it will hold a 'redirect history'. -prepareSession = function(request, response, requestState) { + +var prepareSession = function prepareSession(request, response, requestState) { debugRequest("preparing session"); - return Promise["try"](function() { + return Promise.try(function () { if (requestState.sessionOptions != null) { - request.options = _.merge(_.clone(requestState.sessionOptions), request.options); - } + // Request options take priority over session options + request.options = deepMerge(shallowClone(requestState.sessionOptions), request.options); + } // Create a headers parameter if it doesn't exist yet - we'll need to add some stuff to this later on + // FIXME: We may need to do a deep-clone of other mutable options later on as well; otherwise, when getting a redirect in a session with pre-defined options, the contents may not be correctly cleared after following the redirect. + + if (request.options.headers != null) { - request.options.headers = _.clone(request.options.headers, true); + request.options.headers = deepClone(request.options.headers); } else { request.options.headers = {}; - } + } // If we have a cookie jar, start out by setting the cookie string. + + if (request.options.cookieJar != null) { - return Promise["try"](function() { + return Promise.try(function () { + // Move the cookieJar to the request object, the http/https module doesn't need it. request.cookieJar = request.options.cookieJar; - delete request.options.cookieJar; + delete request.options.cookieJar; // Get the current cookie string for the URL + return request.cookieJar.get(request.url); - }).then(function(cookieString) { + }).then(function (cookieString) { debugRequest("sending cookie string: %s", cookieString); request.options.headers["cookie"] = cookieString; return Promise.resolve([request, response, requestState]); @@ -138,232 +168,300 @@ prepareSession = function(request, response, requestState) { }); }; -prepareDefaults = function(request, response, requestState) { +var prepareDefaults = function prepareDefaults(request, response, requestState) { debugRequest("preparing defaults"); - return Promise["try"](function() { - var base, base1, base2, ref, ref1, ref2, ref3, ref4, ref5, ref6, ref7; + return Promise.try(function () { + // These are the options that we need for response processing, but don't need to be passed on to the http/https module. request.responseOptions = { - discardResponse: (ref = request.options.discardResponse) != null ? ref : false, - keepRedirectResponses: (ref1 = request.options.keepRedirectResponses) != null ? ref1 : false, - followRedirects: (ref2 = request.options.followRedirects) != null ? ref2 : true, - noDecode: (ref3 = request.options.noDecode) != null ? ref3 : false, - decodeJSON: (ref4 = request.options.decodeJSON) != null ? ref4 : false, - stream: (ref5 = request.options.stream) != null ? ref5 : false, - justPrepare: (ref6 = request.options.justPrepare) != null ? ref6 : false, - redirectLimit: (ref7 = request.options.redirectLimit) != null ? ref7 : 10, + discardResponse: request.options.discardResponse != null ? request.options.discardResponse : false, + keepRedirectResponses: request.options.keepRedirectResponses != null ? request.options.keepRedirectResponses : false, + followRedirects: request.options.followRedirects != null ? request.options.followRedirects : true, + noDecode: request.options.noDecode != null ? request.options.noDecode : false, + decodeJSON: request.options.decodeJSON != null ? request.options.decodeJSON : false, + stream: request.options.stream != null ? request.options.stream : false, + justPrepare: request.options.justPrepare != null ? request.options.justPrepare : false, + redirectLimit: request.options.redirectLimit != null ? request.options.redirectLimit : 10, onDownloadProgress: request.options.onDownloadProgress, responseTimeout: request.options.responseTimeout - }; - if ((base = request.options).allowChunkedMultipart == null) { - base.allowChunkedMultipart = false; - } - if ((base1 = request.options).forceMultipart == null) { - base1.forceMultipart = false; - } - if ((base2 = request.options.headers)["user-agent"] == null) { - base2["user-agent"] = "bhttp/" + packageConfig.version; - } + }; // Whether chunked transfer encoding for multipart/form-data payloads is acceptable. This is likely to break quietly on a lot of servers. + + if (request.options.allowChunkedMultipart == null) { + request.options.allowChunkedMultipart = false; + } // Whether we should always use multipart/form-data for payloads, even if querystring-encoding would be a possibility. + + + if (request.options.forceMultipart == null) { + request.options.forceMultipart = false; + } // If no custom user-agent is defined, set our own + + + if (request.options.headers["user-agent"] == null) { + request.options.headers["user-agent"] = "bhttp/".concat(packageConfig.version); + } // Normalize the request method to lowercase. + + request.options.method = request.options.method.toLowerCase(); return Promise.resolve([request, response, requestState]); }); }; -prepareUrl = function(request, response, requestState) { +var prepareUrl = function prepareUrl(request, response, requestState) { debugRequest("preparing URL"); - return Promise["try"](function() { - var ref, urlOptions; - urlOptions = urlUtil.parse(request.url, true); - _.extend(request.options, { + return Promise.try(function () { + // Parse the specified URL, and use the resulting information to build a complete `options` object + var urlOptions = urlUtil.parse(request.url, true); + Object.assign(request.options, { hostname: urlOptions.hostname, port: urlOptions.port }); request.options.path = urlUtil.format({ pathname: urlOptions.pathname, - query: (ref = request.options.query) != null ? ref : urlOptions.query + query: request.options.query != null ? request.options.query : urlOptions.query }); - request.protocol = S(urlOptions.protocol).chompRight(":").toString(); + request.protocol = urlOptions.protocol.replace(/:$/, ""); return Promise.resolve([request, response, requestState]); }); }; -prepareProtocol = function(request, response, requestState) { +var prepareProtocol = function prepareProtocol(request, response, requestState) { debugRequest("preparing protocol"); - return Promise["try"](function() { - var base; - request.protocolModule = (function() { + return Promise.try(function () { + request.protocolModule = function () { switch (request.protocol) { case "http": return http; + case "https": return https; + // CAUTION / FIXME: Node will silently ignore SSL settings without a custom agent! + default: return null; } - })(); + }(); + if (request.protocolModule == null) { - return Promise.reject()(new bhttpErrors.UnsupportedProtocolError("The protocol specified (" + protocol + ") is not currently supported by this module.")); + return Promise.reject(new bhttpErrors.UnsupportedProtocolError("The protocol specified (".concat(request.protocol, ") is not currently supported by this module."))); } - if ((base = request.options).port == null) { - base.port = (function() { + + if (request.options.port == null) { + request.options.port = function () { switch (request.protocol) { case "http": return 80; + case "https": return 443; } - })(); + }(); } + return Promise.resolve([request, response, requestState]); }); }; -prepareOptions = function(request, response, requestState) { +var prepareOptions = function prepareOptions(request, response, requestState) { debugRequest("preparing options"); - return Promise["try"](function() { - var base; - if (((request.options.formFields != null) || (request.options.files != null)) && ((request.options.inputStream != null) || (request.options.inputBuffer != null))) { + return Promise.try(function () { + // Do some sanity checks - there are a number of options that cannot be used together + if ((request.options.formFields != null || request.options.files != null) && (request.options.inputStream != null || request.options.inputBuffer != null)) { return Promise.reject(addErrorData(new bhttpErrors.ConflictingOptionsError("You cannot define both formFields/files and a raw inputStream or inputBuffer."), request, response, requestState)); } - if (request.options.encodeJSON && ((request.options.inputStream != null) || (request.options.inputBuffer != null))) { - return Promise.reject(addErrorData(new bhttpErrors.ConflictingOptionsError("You cannot use both encodeJSON and a raw inputStream or inputBuffer.", void 0, "If you meant to JSON-encode the stream, you will currently have to do so manually."), request, response, requestState)); - } + + if (request.options.encodeJSON && (request.options.inputStream != null || request.options.inputBuffer != null)) { + return Promise.reject(addErrorData(new bhttpErrors.ConflictingOptionsError("You cannot use both encodeJSON and a raw inputStream or inputBuffer.", undefined, "If you meant to JSON-encode the stream, you will currently have to do so manually."), request, response, requestState)); + } // If the user plans on streaming the response, we need to disable the agent entirely - otherwise the streams will block the pool. + + if (request.responseOptions.stream) { - if ((base = request.options).agent == null) { - base.agent = false; + if (request.options.agent == null) { + request.options.agent = false; } } + return Promise.resolve([request, response, requestState]); }); }; -preparePayload = function(request, response, requestState) { +var preparePayload = function preparePayload(request, response, requestState) { debugRequest("preparing payload"); - return Promise["try"](function() { - var containsStreams, fieldName, fieldValue, formDataObject, i, len, multipart, ref, ref1, ref2, streamOptions, valueElement; - request.onUploadProgress = request.options.onUploadProgress; - multipart = request.options.forceMultipart || (request.options.files != null); - multipart = multipart || _.any(request.options.formFields, function(item) { + return Promise.try(function () { + // Persist the download progress event handler on the request object, if there is one. + request.onUploadProgress = request.options.onUploadProgress; // If a 'files' parameter is present, then we will send the form data as multipart data - it's most likely binary data. + + var multipart = request.options.forceMultipart || request.options.files != null; // Similarly, if any of the formFields values are either a Stream or a Buffer, we will assume that the form should be sent as multipart. + + multipart = multipart || Object.values(request.options.formFields).some(function (item) { return item instanceof Buffer || isStream(item); - }); - _.extend(request.options.formFields, request.options.files); - containsStreams = _.any(request.options.formFields, function(item) { + }); // Really, 'files' and 'formFields' are the same thing - they mostly have different names for 1) clarity and 2) multipart detection. We combine them here. + + Object.assign(request.options.formFields, request.options.files); // For a last sanity check, we want to know whether there are any Stream objects in our form data *at all* - these can't be used when encodeJSON is enabled. + + var containsStreams = Object.values(request.options.formFields).some(function (item) { return isStream(item); }); + if (request.options.encodeJSON && containsStreams) { - return Promise.reject()(new bhttpErrors.ConflictingOptionsError("Sending a JSON-encoded payload containing data from a stream is not currently supported.", void 0, "Either don't use encodeJSON, or read your stream into a string or Buffer.")); + return Promise.reject(new bhttpErrors.ConflictingOptionsError("Sending a JSON-encoded payload containing data from a stream is not currently supported.", undefined, "Either don't use encodeJSON, or read your stream into a string or Buffer.")); } - if ((ref = request.options.method) !== "get" && ref !== "head" && ref !== "delete") { - if ((request.options.encodeJSON || (request.options.formFields != null)) && !multipart) { + + if (!["get", "head", "delete"].includes(request.options.method)) { + // Prepare the payload, and set the appropriate headers. + if ((request.options.encodeJSON || request.options.formFields != null) && !multipart) { + // We know the payload and its size in advance. debugRequest("got url-encodable form-data"); + if (request.options.encodeJSON) { debugRequest("... but encodeJSON was set, so we will send JSON instead"); request.options.headers["content-type"] = "application/json"; - request.payload = JSON.stringify((ref1 = request.options.formFields) != null ? ref1 : null); - } else if (!_.isEmpty(request.options.formFields)) { + request.payload = JSON.stringify(request.options.formFields != null ? request.options.formFields : null); + } else if (Object.keys(request.options.formFields).length > 0) { + // The `querystring` module copies the key name verbatim, even if the value is actually an array. Things like PHP don't understand this, and expect every array-containing key to be suffixed with []. We'll just append that ourselves, then. request.options.headers["content-type"] = "application/x-www-form-urlencoded"; request.payload = querystring.stringify(formFixArray(request.options.formFields)); } else { request.payload = ""; } + request.options.headers["content-length"] = request.payload.length; return Promise.resolve(); - } else if ((request.options.formFields != null) && multipart) { + } else if (request.options.formFields != null && multipart) { + // This is going to be multipart data, and we'll let `form-data` set the headers for us. debugRequest("got multipart form-data"); - formDataObject = new formData(); - ref2 = formFixArray(request.options.formFields); - for (fieldName in ref2) { - fieldValue = ref2[fieldName]; - if (!_.isArray(fieldValue)) { + var formDataObject = new formData(); + var object = formFixArray(request.options.formFields); + + for (var fieldName in object) { + var fieldValue = object[fieldName]; + + if (!Array.isArray(fieldValue)) { fieldValue = [fieldValue]; } - for (i = 0, len = fieldValue.length; i < len; i++) { - valueElement = fieldValue[i]; - if (valueElement._bhttpStreamWrapper != null) { - streamOptions = valueElement.options; - valueElement = valueElement.stream; - } else { - streamOptions = {}; + + var _iteratorNormalCompletion2 = true; + var _didIteratorError2 = false; + var _iteratorError2 = undefined; + + try { + for (var _iterator2 = fieldValue[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) { + var valueElement = _step2.value; + var streamOptions; + + if (valueElement._bhttpStreamWrapper != null) { + streamOptions = valueElement.options; + valueElement = valueElement.stream; + } else { + streamOptions = {}; + } + + formDataObject.append(fieldName, valueElement, streamOptions); + } + } catch (err) { + _didIteratorError2 = true; + _iteratorError2 = err; + } finally { + try { + if (!_iteratorNormalCompletion2 && _iterator2.return != null) { + _iterator2.return(); + } + } finally { + if (_didIteratorError2) { + throw _iteratorError2; + } } - formDataObject.append(fieldName, valueElement, streamOptions); } } + request.payloadStream = formDataObject; - return Promise["try"](function() { + return Promise.try(function () { return formDataObject.getHeaders(); - }).then(function(headers) { + }).then(function (headers) { if (headers["content-transfer-encoding"] === "chunked" && !request.options.allowChunkedMultipart) { - return Promise.reject(addErrorData(new MultipartError("Most servers do not support chunked transfer encoding for multipart/form-data payloads, and we could not determine the length of all the input streams. See the documentation for more information."), request, response, requestState)); + return Promise.reject(addErrorData(new bhttpErrors.MultipartError("Most servers do not support chunked transfer encoding for multipart/form-data payloads, and we could not determine the length of all the input streams. See the documentation for more information."), request, response, requestState)); } else { - _.extend(request.options.headers, headers); + Object.assign(request.options.headers, headers); return Promise.resolve(); } }); } else if (request.options.inputStream != null) { + // A raw inputStream was provided, just leave it be. debugRequest("got inputStream"); - return Promise["try"](function() { - var ref3; + return Promise.try(function () { request.payloadStream = request.options.inputStream; - if ((request.payloadStream._bhttpStreamWrapper != null) && ((request.payloadStream.options.contentLength != null) || (request.payloadStream.options.knownLength != null))) { - return Promise.resolve((ref3 = request.payloadStream.options.contentLength) != null ? ref3 : request.payloadStream.options.knownLength); + + if (request.payloadStream._bhttpStreamWrapper != null && (request.payloadStream.options.contentLength != null || request.payloadStream.options.knownLength != null)) { + return Promise.resolve(request.payloadStream.options.contentLength != null ? request.payloadStream.options.contentLength : request.payloadStream.options.knownLength); } else { return streamLength(request.options.inputStream); } - }).then(function(length) { + }).then(function (length) { debugRequest("length for inputStream is %s", length); - return request.options.headers["content-length"] = length; - })["catch"](function(err) { + request.options.headers["content-length"] = length; + }).catch(function (_error) { debugRequest("unable to determine inputStream length, switching to chunked transfer encoding"); - return request.options.headers["content-transfer-encoding"] = "chunked"; + request.options.headers["content-transfer-encoding"] = "chunked"; }); } else if (request.options.inputBuffer != null) { + // A raw inputBuffer was provided, just leave it be (but make sure it's an actual Buffer). debugRequest("got inputBuffer"); + if (typeof request.options.inputBuffer === "string") { - request.payload = new Buffer(request.options.inputBuffer); + request.payload = new Buffer(request.options.inputBuffer); // Input string should be utf-8! } else { request.payload = request.options.inputBuffer; } + debugRequest("length for inputBuffer is %s", request.payload.length); request.options.headers["content-length"] = request.payload.length; return Promise.resolve(); } else { + // No payload specified. return Promise.resolve(); } } else { + // GET, HEAD and DELETE should not have a payload. While technically not prohibited by the spec, it's also not specified, and we'd rather not upset poorly-compliant webservers. + // FIXME: Should this throw an Error? return Promise.resolve(); } - }).then(function() { + }).then(function () { return Promise.resolve([request, response, requestState]); }); }; -prepareCleanup = function(request, response, requestState) { +var prepareCleanup = function prepareCleanup(request, response, requestState) { debugRequest("preparing cleanup"); - return Promise["try"](function() { - var fixedHeaders, i, key, len, ref, ref1, value; - ref = ["query", "formFields", "files", "encodeJSON", "inputStream", "inputBuffer", "discardResponse", "keepRedirectResponses", "followRedirects", "noDecode", "decodeJSON", "allowChunkedMultipart", "forceMultipart", "onUploadProgress", "onDownloadProgress"]; - for (i = 0, len = ref.length; i < len; i++) { - key = ref[i]; + return Promise.try(function () { + // Remove the options that we're not going to pass on to the actual http/https library. + var key; + + for (var _i = 0, _arr = ["query", "formFields", "files", "encodeJSON", "inputStream", "inputBuffer", "discardResponse", "keepRedirectResponses", "followRedirects", "noDecode", "decodeJSON", "allowChunkedMultipart", "forceMultipart", "onUploadProgress", "onDownloadProgress"]; _i < _arr.length; _i++) { + key = _arr[_i]; delete request.options[key]; - } - fixedHeaders = {}; - ref1 = request.options.headers; - for (key in ref1) { - value = ref1[key]; + } // Lo-Dash apparently has no `map` equivalent for object keys...? + + + var fixedHeaders = {}; + + for (key in request.options.headers) { + var value = request.options.headers[key]; fixedHeaders[key.toLowerCase()] = value; } + request.options.headers = fixedHeaders; return Promise.resolve([request, response, requestState]); }); -}; +}; // The guts of the module + + +var prepareRequest = function prepareRequest(request, response, requestState) { + debugRequest("preparing request"); // FIXME: Mock httpd for testing functionality. -prepareRequest = function(request, response, requestState) { - debugRequest("preparing request"); - return Promise["try"](function() { - var middlewareFunctions, promiseChain; - middlewareFunctions = [prepareSession, prepareDefaults, prepareUrl, prepareProtocol, prepareOptions, preparePayload, prepareCleanup]; - promiseChain = Promise.resolve([request, response, requestState]); - middlewareFunctions.forEach(function(middleware) { - return promiseChain = promiseChain.spread(function(_request, _response, _requestState) { + return Promise.try(function () { + var middlewareFunctions = [prepareSession, prepareDefaults, prepareUrl, prepareProtocol, prepareOptions, preparePayload, prepareCleanup]; + var promiseChain = Promise.resolve([request, response, requestState]); + middlewareFunctions.forEach(function (middleware) { + // We must use the functional construct here, to avoid losing references + promiseChain = promiseChain.spread(function (_request, _response, _requestState) { return middleware(_request, _response, _requestState); }); }); @@ -371,54 +469,65 @@ prepareRequest = function(request, response, requestState) { }); }; -makeRequest = function(request, response, requestState) { +var makeRequest = function makeRequest(request, response, requestState) { debugRequest("making %s request to %s", request.options.method.toUpperCase(), request.url); - return Promise["try"](function() { - var req, timeoutTimer; - req = request.protocolModule.request(request.options); - timeoutTimer = null; - return new Promise(function(resolve, reject) { - var completedBytes, progressStream, totalBytes; + return Promise.try(function () { + // Instantiate a regular HTTP/HTTPS request + var req = request.protocolModule.request(request.options); + var timeoutTimer = null; + return new Promise(function (resolve, reject) { + // Connection timeout handling, if one is set. if (request.responseOptions.responseTimeout != null) { - debugRequest("setting response timeout timer to " + request.responseOptions.responseTimeout + "ms..."); - req.on("socket", function(socket) { - var timeoutHandler; - timeoutHandler = function() { + debugRequest("setting response timeout timer to ".concat(request.responseOptions.responseTimeout, "ms...")); + req.on("socket", function (_socket) { + var timeoutHandler = function timeoutHandler() { debugRequest("a response timeout occurred!"); req.abort(); return reject(addErrorData(new bhttpErrors.ResponseTimeoutError("The response timed out."))); }; - return timeoutTimer = setTimeout(timeoutHandler, request.responseOptions.responseTimeout); + + timeoutTimer = setTimeout(timeoutHandler, request.responseOptions.responseTimeout); }); - } - totalBytes = request.options.headers["content-length"]; - completedBytes = 0; - progressStream = spy(function(chunk) { + } // Set up the upload progress monitoring. + + + var totalBytes = request.options.headers["content-length"]; + var completedBytes = 0; + var progressStream = spy(function (chunk) { completedBytes += chunk.length; return req.emit("progress", completedBytes, totalBytes); }); + if (request.onUploadProgress != null) { - req.on("progress", function(completedBytes, totalBytes) { + req.on("progress", function (completedBytes, totalBytes) { return request.onUploadProgress(completedBytes, totalBytes, req); }); - } + } // This is where we write our payload or stream to the request, and the actual request is made. + + if (request.payload != null) { + // The entire payload is a single Buffer. We'll still pretend that it's a stream for our progress events, though, to provide a consistent API. debugRequest("sending payload"); req.emit("progress", request.payload.length, request.payload.length); req.write(request.payload); req.end(); } else if (request.payloadStream != null) { + // The payload is a stream. debugRequest("piping payloadStream"); + if (request.payloadStream._bhttpStreamWrapper != null) { request.payloadStream.stream.pipe(progressStream).pipe(req); } else { request.payloadStream.pipe(progressStream).pipe(req); } } else { + // For GET, HEAD, DELETE, etc. there is no payload, but we still need to call end() to complete the request. debugRequest("closing request without payload"); req.end(); - } - req.on("error", function(err) { + } // In case something goes wrong during this process, somehow... + + + req.on("error", function (err) { if (err.code === "ETIMEDOUT") { debugRequest("a connection timeout occurred!"); return reject(addErrorData(new bhttpErrors.ConnectionTimeoutError("The connection timed out."))); @@ -426,143 +535,193 @@ makeRequest = function(request, response, requestState) { return reject(err); } }); - return req.on("response", function(res) { + return req.on("response", function (res) { if (timeoutTimer != null) { debugResponse("got response in time, clearing response timeout timer"); clearTimeout(timeoutTimer); } + return resolve(res); }); }); - }).then(function(response) { + }).then(function (response) { return Promise.resolve([request, response, requestState]); }); }; -processResponse = function(request, response, requestState) { - debugResponse("processing response, got status code %s", response.statusCode); - return Promise["try"](function() { - var cookieHeader, promises; - if ((request.cookieJar != null) && (response.headers["set-cookie"] != null)) { - promises = (function() { - var i, len, ref, results; - ref = response.headers["set-cookie"]; - results = []; - for (i = 0, len = ref.length; i < len; i++) { - cookieHeader = ref[i]; - debugResponse("storing cookie: %s", cookieHeader); - results.push(request.cookieJar.set(cookieHeader, request.url)); +var processResponse = function processResponse(request, response, requestState) { + debugResponse("processing response, got status code %s", response.statusCode); // When we receive the response, we'll buffer it up and/or decode it, depending on what the user specified, and resolve the returned Promise. If the user just wants the raw stream, we resolve immediately after receiving a response. + + return Promise.try(function () { + // First, if a cookie jar is set and we received one or more cookies from the server, we should store them in our cookieJar. + if (request.cookieJar != null && response.headers["set-cookie"] != null) { + var promises = function () { + var result = []; + var _iteratorNormalCompletion3 = true; + var _didIteratorError3 = false; + var _iteratorError3 = undefined; + + try { + for (var _iterator3 = response.headers["set-cookie"][Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) { + var cookieHeader = _step3.value; + debugResponse("storing cookie: %s", cookieHeader); + result.push(request.cookieJar.set(cookieHeader, request.url)); + } + } catch (err) { + _didIteratorError3 = true; + _iteratorError3 = err; + } finally { + try { + if (!_iteratorNormalCompletion3 && _iterator3.return != null) { + _iterator3.return(); + } + } finally { + if (_didIteratorError3) { + throw _iteratorError3; + } + } } - return results; - })(); + + return result; + }(); + return Promise.all(promises); } else { return Promise.resolve(); } - }).then(function() { - var completedBytes, progressStream, ref, ref1, totalBytes; + }).then(function () { + // Now the actual response processing. response.request = request; response.requestState = requestState; response.redirectHistory = requestState.redirectHistory; - if (((ref = response.statusCode) === 301 || ref === 302 || ref === 303 || ref === 307) && request.responseOptions.followRedirects) { - if (requestState.redirectHistory.length >= (request.responseOptions.redirectLimit - 1)) { + + if ([301, 302, 303, 307].includes(response.statusCode) && request.responseOptions.followRedirects) { + if (requestState.redirectHistory.length >= request.responseOptions.redirectLimit - 1) { return Promise.reject(addErrorData(new bhttpErrors.RedirectError("The maximum amount of redirects ({request.responseOptions.redirectLimit}) was reached."))); - } + } // 301: For GET and HEAD, redirect unchanged. For POST, PUT, PATCH, DELETE, "ask user" (in our case: throw an error.) + // 302: Redirect, change method to GET. + // 303: Redirect, change method to GET. + // 307: Redirect, retain method. Make same request again. + + switch (response.statusCode) { case 301: switch (request.options.method) { case "get": case "head": return redirectUnchanged(request, response, requestState); + case "post": case "put": case "patch": case "delete": return Promise.reject(addErrorData(new bhttpErrors.RedirectError("Encountered a 301 redirect for POST, PUT, PATCH or DELETE. RFC says we can't automatically continue."), request, response, requestState)); + default: - return Promise.reject(addErrorData(new bhttpErrors.RedirectError("Encountered a 301 redirect, but not sure how to proceed for the " + (request.options.method.toUpperCase()) + " method."))); + return Promise.reject(addErrorData(new bhttpErrors.RedirectError("Encountered a 301 redirect, but not sure how to proceed for the ".concat(request.options.method.toUpperCase(), " method.")))); } - break; + case 302: case 303: return redirectGet(request, response, requestState); + case 307: - if (request.containsStreams && ((ref1 = request.options.method) !== "get" && ref1 !== "head")) { + if (request.containsStreams && !["get", "head"].includes(request.options.method)) { return Promise.reject(addErrorData(new bhttpErrors.RedirectError("Encountered a 307 redirect for POST, PUT or DELETE, but your payload contained (single-use) streams. We therefore can't automatically follow the redirect."), request, response, requestState)); } else { return redirectUnchanged(request, response, requestState); } + } } else if (request.responseOptions.discardResponse) { - response.pipe(devNull()); + response.pipe(devNull()); // Drain the response stream + return Promise.resolve(response); } else { - totalBytes = response.headers["content-length"]; + var totalBytes = response.headers["content-length"]; + if (totalBytes != null) { + // Otherwise `undefined` will turn into `NaN`, and we don't want that. totalBytes = parseInt(totalBytes); } - completedBytes = 0; - progressStream = sink(function(chunk) { + + var completedBytes = 0; + var progressStream = sink(function (chunk) { completedBytes += chunk.length; return response.emit("progress", completedBytes, totalBytes); }); + if (request.responseOptions.onDownloadProgress != null) { - response.on("progress", function(completedBytes, totalBytes) { + response.on("progress", function (completedBytes, totalBytes) { return request.responseOptions.onDownloadProgress(completedBytes, totalBytes, response); }); } - return new Promise(function(resolve, reject) { - var _on, _progressStreamAttached, _resume, attachProgressStream; - _resume = response.resume.bind(response); - _on = response.on.bind(response); - _progressStreamAttached = false; - attachProgressStream = function() { + + return new Promise(function (resolve, reject) { + // This is a very, very dirty hack - however, using .pipe followed by .pause breaks in Node.js v0.10.35 with "Cannot switch to old mode now". Our solution is to monkeypatch the `on` and `resume` methods to attach the progress event handler as soon as something else is attached to the response stream (or when it is drained). This way, a user can also pipe the response in a later tick, without the stream draining prematurely. + var _resume = response.resume.bind(response); + + var _on = response.on.bind(response); + + var _progressStreamAttached = false; + + var attachProgressStream = function attachProgressStream() { + // To keep this from sending us into an infinite loop. if (!_progressStreamAttached) { debugResponse("attaching progress stream"); _progressStreamAttached = true; return response.pipe(progressStream); } }; - response.on = function(eventName, handler) { - debugResponse("'on' called, " + eventName); + + response.on = function (eventName, handler) { + debugResponse("'on' called, ".concat(eventName)); + if (eventName === "data" || eventName === "readable") { attachProgressStream(); } + return _on(eventName, handler); }; - response.resume = function() { + + response.resume = function () { attachProgressStream(); return _resume(); - }; + }; // Continue with the regular response processing. + + if (request.responseOptions.stream) { return resolve(response); } else { - response.on("error", function(err) { + response.on("error", function (err) { return reject(err); }); - return response.pipe(concatStream(function(body) { - var err, ref2; - if (request.responseOptions.decodeJSON || (((ref2 = response.headers["content-type"]) != null ? ref2 : "").split(";")[0] === "application/json" && !request.responseOptions.noDecode)) { + return response.pipe(concatStream(function (body) { + // FIXME: Separate module for header parsing? + if (request.responseOptions.decodeJSON || (response.headers["content-type"] != null ? response.headers["content-type"] : "").split(";")[0] === "application/json" && !request.responseOptions.noDecode) { try { response.body = JSON.parse(body); - } catch (_error) { - err = _error; + } catch (err) { reject(err); } } else { response.body = body; } + return resolve(response); })); } }); } - }).then(function(response) { + }).then(function (response) { return Promise.resolve([request, response, requestState]); }); -}; +}; // Some wrappers + -doPayloadRequest = function(url, data, options, callback) { +var doPayloadRequest = function doPayloadRequest(url, data, options, callback) { + // A wrapper that processes the second argument to .post, .put, .patch shorthand API methods. + // FIXME: Treat a {} for data as a null? Otherwise {} combined with inputBuffer/inputStream will error. if (isStream(data)) { options.inputStream = data; } else if (ofTypes(data, [Buffer]) || typeof data === "string") { @@ -570,190 +729,210 @@ doPayloadRequest = function(url, data, options, callback) { } else { options.formFields = data; } + return this.request(url, options, callback); }; -redirectGet = function(request, response, requestState) { +var redirectGet = function redirectGet(request, response, requestState) { debugResponse("following forced-GET redirect to %s", response.headers["location"]); - return Promise["try"](function() { - var i, key, len, options, ref; - options = _.clone(requestState.originalOptions); + return Promise.try(function () { + var options = shallowClone(requestState.originalOptions); options.method = "get"; - ref = ["inputBuffer", "inputStream", "files", "formFields"]; - for (i = 0, len = ref.length; i < len; i++) { - key = ref[i]; + + for (var _i2 = 0, _arr2 = ["inputBuffer", "inputStream", "files", "formFields"]; _i2 < _arr2.length; _i2++) { + var key = _arr2[_i2]; delete options[key]; } + return doRedirect(request, response, requestState, options); }); }; -redirectUnchanged = function(request, response, requestState) { +var redirectUnchanged = function redirectUnchanged(request, response, requestState) { debugResponse("following same-method redirect to %s", response.headers["location"]); - return Promise["try"](function() { - var options; - options = _.clone(requestState.originalOptions); + return Promise.try(function () { + var options = shallowClone(requestState.originalOptions); return doRedirect(request, response, requestState, options); }); }; -doRedirect = function(request, response, requestState, newOptions) { - return Promise["try"](function() { +var doRedirect = function doRedirect(request, response, requestState, newOptions) { + return Promise.try(function () { if (!request.responseOptions.keepRedirectResponses) { - response.pipe(devNull()); + response.pipe(devNull()); // Let the response stream drain out... } + requestState.redirectHistory.push(response); return bhttpAPI._doRequest(urlUtil.resolve(request.url, response.headers["location"]), newOptions, requestState); }); }; -createCookieJar = function(jar) { +var createCookieJar = function createCookieJar(jar) { + // Creates a cookie jar wrapper with a simplified API. return { - set: function(cookie, url) { - return new Promise((function(_this) { - return function(resolve, reject) { - return _this.jar.setCookie(cookie, url, function(err, cookie) { - if (err) { - return reject(err); - } else { - return resolve(cookie); - } - }); - }; - })(this)); + set: function set(cookie, url) { + var _this = this; + + return new Promise(function (resolve, reject) { + return _this.jar.setCookie(cookie, url, function (err, cookie) { + if (err) { + return reject(err); + } else { + return resolve(cookie); + } + }); + }); }, - get: function(url) { - return new Promise((function(_this) { - return function(resolve, reject) { - return _this.jar.getCookieString(url, function(err, cookies) { - if (err) { - return reject(err); - } else { - return resolve(cookies); - } - }); - }; - })(this)); + get: function get(url) { + var _this2 = this; + + return new Promise(function (resolve, reject) { + return _this2.jar.getCookieString(url, function (err, cookies) { + if (err) { + return reject(err); + } else { + return resolve(cookies); + } + }); + }); }, jar: jar }; -}; +}; // The exposed API + -bhttpAPI = { - head: function(url, options, callback) { +var bhttpAPI = { + head: function head(url, options, callback) { if (options == null) { options = {}; } + options.method = "head"; return this.request(url, options, callback); }, - get: function(url, options, callback) { + get: function get(url, options, callback) { if (options == null) { options = {}; } + options.method = "get"; return this.request(url, options, callback); }, - post: function(url, data, options, callback) { + post: function post(url, data, options, callback) { if (options == null) { options = {}; } + options.method = "post"; return doPayloadRequest.bind(this)(url, data, options, callback); }, - put: function(url, data, options, callback) { + put: function put(url, data, options, callback) { if (options == null) { options = {}; } + options.method = "put"; return doPayloadRequest.bind(this)(url, data, options, callback); }, - patch: function(url, data, options, callback) { + patch: function patch(url, data, options, callback) { if (options == null) { options = {}; } + options.method = "patch"; return doPayloadRequest.bind(this)(url, data, options, callback); }, - "delete": function(url, options, callback) { + delete: function _delete(url, options, callback) { if (options == null) { options = {}; } + options.method = "delete"; return this.request(url, options, callback); }, - request: function(url, options, callback) { + request: function request(url, options, callback) { if (options == null) { options = {}; } + return this._doRequest(url, options).nodeify(callback); }, - _doRequest: function(url, options, requestState) { - return Promise["try"]((function(_this) { - return function() { - var ref, request, response; - request = { - url: url, - options: _.clone(options) - }; - response = null; - if (requestState == null) { - requestState = { - originalOptions: _.clone(options), - redirectHistory: [] - }; - } - if (requestState.sessionOptions == null) { - requestState.sessionOptions = (ref = _this._sessionOptions) != null ? ref : {}; - } - return prepareRequest(request, response, requestState); + _doRequest: function _doRequest(url, options, requestState) { + var _this3 = this; + + // This is split from the `request` method, so that the user doesn't have to pass in `undefined` for the `requestState` when they want to specify a `callback`. + return Promise.try(function () { + var request = { + url: url, + options: shallowClone(options) }; - })(this)).spread((function(_this) { - return function(request, response, requestState) { - if (request.responseOptions.justPrepare) { - return Promise.resolve([request, response, requestState]); - } else { - return Promise["try"](function() { - return bhttpAPI.executeRequest(request, response, requestState); - }).spread(function(request, response, requestState) { - return Promise.resolve(response); - }); - } - }; - })(this)); + var response = null; + + if (requestState == null) { + requestState = { + originalOptions: shallowClone(options), + redirectHistory: [] + }; + } + + if (requestState.sessionOptions == null) { + requestState.sessionOptions = _this3._sessionOptions != null ? _this3._sessionOptions : {}; + } + + return prepareRequest(request, response, requestState); + }).spread(function (request, response, requestState) { + if (request.responseOptions.justPrepare) { + return Promise.resolve([request, response, requestState]); + } else { + return Promise.try(function () { + return bhttpAPI.executeRequest(request, response, requestState); + }).spread(function (request, response, _requestState) { + // The user likely only wants the response. + return Promise.resolve(response); + }); + } + }); }, - executeRequest: function(request, response, requestState) { - return Promise["try"](function() { + executeRequest: function executeRequest(request, response, requestState) { + // Executes a pre-configured request. + return Promise.try(function () { return makeRequest(request, response, requestState); - }).spread(function(request, response, requestState) { + }).spread(function (request, response, requestState) { return processResponse(request, response, requestState); }); }, - session: function(options) { - var key, session, value; + session: function session(options) { if (options == null) { options = {}; } - options = _.clone(options); - session = {}; - for (key in this) { - value = this[key]; + + options = shallowClone(options); + var session = {}; + + for (var key in this) { + var value = this[key]; + if (value instanceof Function) { value = value.bind(session); } + session[key] = value; } + if (options.cookieJar == null) { options.cookieJar = createCookieJar(new toughCookie.CookieJar()); } else if (options.cookieJar === false) { delete options.cookieJar; } else { + // Assume we've gotten a cookie jar. options.cookieJar = createCookieJar(options.cookieJar); } + session._sessionOptions = options; return session; }, - wrapStream: function(stream, options) { + wrapStream: function wrapStream(stream, options) { + // This is a method for wrapping a stream in an object that also contains metadata. return { _bhttpStreamWrapper: true, stream: stream, @@ -761,7 +940,5 @@ bhttpAPI = { }; } }; - extend(bhttpAPI, bhttpErrors); - -module.exports = bhttpAPI; +module.exports = bhttpAPI; // That's all, folks! diff --git a/package.json b/package.json index 7b2b655..f7c6a24 100644 --- a/package.json +++ b/package.json @@ -4,11 +4,12 @@ "description": "A sane HTTP client library for Node.js with Streams2 support.", "main": "index.js", "scripts": { - "test": "echo \"Error: no test specified\" && exit 1" + "test": "echo \"Error: no test specified\" && exit 1", + "build": "babel --watch src/bhttp.js --out-file lib/bhttp.js" }, "repository": { "type": "git", - "url": "git://github.com/joepie91/node-bhttp" + "url": "http://git.cryto.net/joepie91/node-bhttp.git" }, "keywords": [ "http", @@ -20,7 +21,7 @@ "needle" ], "author": "Sven Slootweg", - "license": "WTFPL", + "license": "WTFPL OR CC0-1.0", "dependencies": { "bluebird": "^2.8.2", "concat-stream": "^1.4.7", @@ -30,23 +31,18 @@ "extend": "^2.0.0", "form-data2": "^1.0.0", "form-fix-array": "^1.0.0", - "lodash": "^2.4.1", + "lodash.clonedeep": "^4.5.0", + "lodash.merge": "^4.6.2", "stream-length": "^1.0.2", - "string": "^3.0.0", "through2-sink": "^1.0.0", "through2-spy": "^1.2.0", "tough-cookie": "^2.3.1" }, "devDependencies": { - "gulp": "~3.8.0", - "gulp-cached": "~0.0.3", - "gulp-coffee": "~2.0.1", - "gulp-concat": "~2.2.0", - "gulp-livereload": "~2.1.0", - "gulp-nodemon": "~1.0.4", - "gulp-plumber": "~0.6.3", - "gulp-remember": "~0.2.0", - "gulp-rename": "~1.2.0", - "gulp-util": "~2.2.17" + "@babel/cli": "^7.8.4", + "@babel/core": "^7.8.4", + "@babel/preset-env": "^7.8.4", + "@joepie91/eslint-config": "^1.1.0", + "eslint": "^6.8.0" } } diff --git a/src/bhttp.js b/src/bhttp.js new file mode 100644 index 0000000..3e55ef1 --- /dev/null +++ b/src/bhttp.js @@ -0,0 +1,768 @@ +"use strict"; + +// FIXME: Force-lowercase user-supplied headers before merging them into the request? +// FIXME: Deep-merge query-string arguments between URL and argument? +// FIXME: Named arrays for multipart/form-data? +// FIXME: Are arrays of streams in `data` correctly recognized as being streams? + +// Core modules +const urlUtil = require("url"); +const querystring = require("querystring"); +const stream = require("stream"); +const http = require("http"); +const https = require("https"); + +// Utility modules +const Promise = require("bluebird"); +const formFixArray = require("form-fix-array"); +const errors = require("errors"); +const debug = require("debug"); +const debugRequest = debug("bhttp:request"); +const debugResponse = debug("bhttp:response"); +const extend = require("extend"); +const devNull = require("dev-null"); +const deepClone = require("lodash.clonedeep"); +const deepMerge = require("lodash.merge"); + +// Other third-party modules +const formData = require("form-data2"); +const concatStream = require("concat-stream"); +const toughCookie = require("tough-cookie"); +const streamLength = require("stream-length"); +const sink = require("through2-sink"); +const spy = require("through2-spy"); + +// For the version in the user agent, etc. +const packageConfig = require("../package.json"); + +const bhttpErrors = {}; + +// Error types + +errors.create({ + name: "bhttpError", + scope: bhttpErrors +}); + +errors.create({ + name: "ConflictingOptionsError", + parents: bhttpErrors.bhttpError, + scope: bhttpErrors +}); + +errors.create({ + name: "UnsupportedProtocolError", + parents: bhttpErrors.bhttpError, + scope: bhttpErrors +}); + +errors.create({ + name: "RedirectError", + parents: bhttpErrors.bhttpError, + scope: bhttpErrors +}); + +errors.create({ + name: "MultipartError", + parents: bhttpErrors.bhttpError, + scope: bhttpErrors +}); + +errors.create({ + name: "ConnectionTimeoutError", + parents: bhttpErrors.bhttpError, + scope: bhttpErrors +}); + +errors.create({ + name: "ResponseTimeoutError", + parents: bhttpErrors.bhttpError, + scope: bhttpErrors +}); + +// Utility functions + +function shallowClone(object) { + return Object.assign({}, object); +} + +const ofTypes = function(obj, types) { + let match = false; + for (let type of types) { + match = match || obj instanceof type; + } + return match; +}; + +const addErrorData = function(err, request, response, requestState) { + err.request = request; + err.response = response; + err.requestState = requestState; + return err; +}; + +const isStream = obj => (obj != null) && (ofTypes(obj, [stream.Readable, stream.Duplex, stream.Transform]) || obj.hasOwnProperty("_bhttpStreamWrapper")); + +// Middleware +// NOTE: requestState is an object that signifies the current state of the overall request; eg. for a response involving one or more redirects, it will hold a 'redirect history'. +const prepareSession = function(request, response, requestState) { + debugRequest("preparing session"); + return Promise.try(function() { + if (requestState.sessionOptions != null) { + // Request options take priority over session options + request.options = deepMerge(shallowClone(requestState.sessionOptions), request.options); + } + + // Create a headers parameter if it doesn't exist yet - we'll need to add some stuff to this later on + // FIXME: We may need to do a deep-clone of other mutable options later on as well; otherwise, when getting a redirect in a session with pre-defined options, the contents may not be correctly cleared after following the redirect. + if (request.options.headers != null) { + request.options.headers = deepClone(request.options.headers); + } else { + request.options.headers = {}; + } + + // If we have a cookie jar, start out by setting the cookie string. + if (request.options.cookieJar != null) { + return Promise.try(function() { + // Move the cookieJar to the request object, the http/https module doesn't need it. + request.cookieJar = request.options.cookieJar; + delete request.options.cookieJar; + + // Get the current cookie string for the URL + return request.cookieJar.get(request.url);}).then(function(cookieString) { + debugRequest("sending cookie string: %s", cookieString); + request.options.headers["cookie"] = cookieString; + return Promise.resolve([request, response, requestState]);}); + } else { + return Promise.resolve([request, response, requestState]); + }}); +}; + +const prepareDefaults = function(request, response, requestState) { + debugRequest("preparing defaults"); + return Promise.try(function() { + // These are the options that we need for response processing, but don't need to be passed on to the http/https module. + request.responseOptions = { + discardResponse: request.options.discardResponse != null ? request.options.discardResponse : false, + keepRedirectResponses: request.options.keepRedirectResponses != null ? request.options.keepRedirectResponses : false, + followRedirects: request.options.followRedirects != null ? request.options.followRedirects : true, + noDecode: request.options.noDecode != null ? request.options.noDecode : false, + decodeJSON: request.options.decodeJSON != null ? request.options.decodeJSON : false, + stream: request.options.stream != null ? request.options.stream : false, + justPrepare: request.options.justPrepare != null ? request.options.justPrepare : false, + redirectLimit: request.options.redirectLimit != null ? request.options.redirectLimit : 10, + onDownloadProgress: request.options.onDownloadProgress, + responseTimeout: request.options.responseTimeout + }; + + // Whether chunked transfer encoding for multipart/form-data payloads is acceptable. This is likely to break quietly on a lot of servers. + if (request.options.allowChunkedMultipart == null) { request.options.allowChunkedMultipart = false; } + + // Whether we should always use multipart/form-data for payloads, even if querystring-encoding would be a possibility. + if (request.options.forceMultipart == null) { request.options.forceMultipart = false; } + + // If no custom user-agent is defined, set our own + if (request.options.headers["user-agent"] == null) { request.options.headers["user-agent"] = `bhttp/${packageConfig.version}`; } + + // Normalize the request method to lowercase. + request.options.method = request.options.method.toLowerCase(); + + return Promise.resolve([request, response, requestState]);}); +}; + +const prepareUrl = function(request, response, requestState) { + debugRequest("preparing URL"); + return Promise.try(function() { + // Parse the specified URL, and use the resulting information to build a complete `options` object + const urlOptions = urlUtil.parse(request.url, true); + + Object.assign(request.options, {hostname: urlOptions.hostname, port: urlOptions.port}); + request.options.path = urlUtil.format({pathname: urlOptions.pathname, query: request.options.query != null ? request.options.query : urlOptions.query}); + request.protocol = urlOptions.protocol.replace(/:$/, ""); + + return Promise.resolve([request, response, requestState]);}); +}; + +const prepareProtocol = function(request, response, requestState) { + debugRequest("preparing protocol"); + return Promise.try(function() { + request.protocolModule = (() => { switch (request.protocol) { + case "http": return http; + case "https": return https; // CAUTION / FIXME: Node will silently ignore SSL settings without a custom agent! + default: return null; + } })(); + + if ((request.protocolModule == null)) { + return Promise.reject(new bhttpErrors.UnsupportedProtocolError(`The protocol specified (${request.protocol}) is not currently supported by this module.`)); + } + + if (request.options.port == null) { request.options.port = (() => { switch (request.protocol) { + case "http": return 80; + case "https": return 443; + } })(); } + + return Promise.resolve([request, response, requestState]);}); +}; + +const prepareOptions = function(request, response, requestState) { + debugRequest("preparing options"); + return Promise.try(function() { + // Do some sanity checks - there are a number of options that cannot be used together + if (((request.options.formFields != null) || (request.options.files != null)) && ((request.options.inputStream != null) || (request.options.inputBuffer != null))) { + return Promise.reject(addErrorData(new bhttpErrors.ConflictingOptionsError("You cannot define both formFields/files and a raw inputStream or inputBuffer."), request, response, requestState)); + } + + if (request.options.encodeJSON && ((request.options.inputStream != null) || (request.options.inputBuffer != null))) { + return Promise.reject(addErrorData(new bhttpErrors.ConflictingOptionsError("You cannot use both encodeJSON and a raw inputStream or inputBuffer.", undefined, "If you meant to JSON-encode the stream, you will currently have to do so manually."), request, response, requestState)); + } + + // If the user plans on streaming the response, we need to disable the agent entirely - otherwise the streams will block the pool. + if (request.responseOptions.stream) { + if (request.options.agent == null) { request.options.agent = false; } + } + + return Promise.resolve([request, response, requestState]);}); +}; + +const preparePayload = function(request, response, requestState) { + debugRequest("preparing payload"); + return Promise.try(function() { + // Persist the download progress event handler on the request object, if there is one. + request.onUploadProgress = request.options.onUploadProgress; + + // If a 'files' parameter is present, then we will send the form data as multipart data - it's most likely binary data. + let multipart = request.options.forceMultipart || (request.options.files != null); + + // Similarly, if any of the formFields values are either a Stream or a Buffer, we will assume that the form should be sent as multipart. + multipart = multipart || Object.values(request.options.formFields).some((item) => item instanceof Buffer || isStream(item)); + + // Really, 'files' and 'formFields' are the same thing - they mostly have different names for 1) clarity and 2) multipart detection. We combine them here. + Object.assign(request.options.formFields, request.options.files); + + // For a last sanity check, we want to know whether there are any Stream objects in our form data *at all* - these can't be used when encodeJSON is enabled. + const containsStreams = Object.values(request.options.formFields).some((item) => isStream(item)); + + if (request.options.encodeJSON && containsStreams) { + return Promise.reject(new bhttpErrors.ConflictingOptionsError("Sending a JSON-encoded payload containing data from a stream is not currently supported.", undefined, "Either don't use encodeJSON, or read your stream into a string or Buffer.")); + } + + if (!["get", "head", "delete"].includes(request.options.method)) { + // Prepare the payload, and set the appropriate headers. + if ((request.options.encodeJSON || (request.options.formFields != null)) && !multipart) { + // We know the payload and its size in advance. + debugRequest("got url-encodable form-data"); + + if (request.options.encodeJSON) { + debugRequest("... but encodeJSON was set, so we will send JSON instead"); + request.options.headers["content-type"] = "application/json"; + request.payload = JSON.stringify(request.options.formFields != null ? request.options.formFields : null); + } else if (Object.keys(request.options.formFields).length > 0) { + // The `querystring` module copies the key name verbatim, even if the value is actually an array. Things like PHP don't understand this, and expect every array-containing key to be suffixed with []. We'll just append that ourselves, then. + request.options.headers["content-type"] = "application/x-www-form-urlencoded"; + request.payload = querystring.stringify(formFixArray(request.options.formFields)); + } else { + request.payload = ""; + } + + request.options.headers["content-length"] = request.payload.length; + + return Promise.resolve(); + } else if ((request.options.formFields != null) && multipart) { + // This is going to be multipart data, and we'll let `form-data` set the headers for us. + debugRequest("got multipart form-data"); + const formDataObject = new formData(); + + const object = formFixArray(request.options.formFields); + for (let fieldName in object) { + let fieldValue = object[fieldName]; + if (!Array.isArray(fieldValue)) { + fieldValue = [fieldValue]; + } + + for (let valueElement of fieldValue) { + var streamOptions; + if (valueElement._bhttpStreamWrapper != null) { + streamOptions = valueElement.options; + valueElement = valueElement.stream; + } else { + streamOptions = {}; + } + + formDataObject.append(fieldName, valueElement, streamOptions); + } + } + + request.payloadStream = formDataObject; + + return Promise.try(() => formDataObject.getHeaders()).then(function(headers) { + if ((headers["content-transfer-encoding"] === "chunked") && !request.options.allowChunkedMultipart) { + return Promise.reject(addErrorData(new bhttpErrors.MultipartError("Most servers do not support chunked transfer encoding for multipart/form-data payloads, and we could not determine the length of all the input streams. See the documentation for more information."), request, response, requestState)); + } else { + Object.assign(request.options.headers, headers); + return Promise.resolve(); + } + }); + } else if (request.options.inputStream != null) { + // A raw inputStream was provided, just leave it be. + debugRequest("got inputStream"); + return Promise.try(function() { + request.payloadStream = request.options.inputStream; + + if ((request.payloadStream._bhttpStreamWrapper != null) && ((request.payloadStream.options.contentLength != null) || (request.payloadStream.options.knownLength != null))) { + return Promise.resolve(request.payloadStream.options.contentLength != null ? request.payloadStream.options.contentLength : request.payloadStream.options.knownLength); + } else { + return streamLength(request.options.inputStream); + } + }).then(function(length) { + debugRequest("length for inputStream is %s", length); + request.options.headers["content-length"] = length; + }).catch(function(_error) { + debugRequest("unable to determine inputStream length, switching to chunked transfer encoding"); + request.options.headers["content-transfer-encoding"] = "chunked"; + }); + } else if (request.options.inputBuffer != null) { + // A raw inputBuffer was provided, just leave it be (but make sure it's an actual Buffer). + debugRequest("got inputBuffer"); + if (typeof request.options.inputBuffer === "string") { + request.payload = new Buffer(request.options.inputBuffer); // Input string should be utf-8! + } else { + request.payload = request.options.inputBuffer; + } + + debugRequest("length for inputBuffer is %s", request.payload.length); + request.options.headers["content-length"] = request.payload.length; + + return Promise.resolve(); + } else { + // No payload specified. + return Promise.resolve(); + } + } else { + // GET, HEAD and DELETE should not have a payload. While technically not prohibited by the spec, it's also not specified, and we'd rather not upset poorly-compliant webservers. + // FIXME: Should this throw an Error? + return Promise.resolve(); + }}).then(() => Promise.resolve([request, response, requestState])); +}; + +const prepareCleanup = function(request, response, requestState) { + debugRequest("preparing cleanup"); + return Promise.try(function() { + // Remove the options that we're not going to pass on to the actual http/https library. + let key; + for (key of ["query", "formFields", "files", "encodeJSON", "inputStream", "inputBuffer", "discardResponse", "keepRedirectResponses", "followRedirects", "noDecode", "decodeJSON", "allowChunkedMultipart", "forceMultipart", "onUploadProgress", "onDownloadProgress"]) { delete request.options[key]; } + + // Lo-Dash apparently has no `map` equivalent for object keys...? + const fixedHeaders = {}; + for (key in request.options.headers) { + const value = request.options.headers[key]; + fixedHeaders[key.toLowerCase()] = value; + } + request.options.headers = fixedHeaders; + + return Promise.resolve([request, response, requestState]);}); +}; + +// The guts of the module + +const prepareRequest = function(request, response, requestState) { + debugRequest("preparing request"); + // FIXME: Mock httpd for testing functionality. + return Promise.try(function() { + const middlewareFunctions = [ + prepareSession, + prepareDefaults, + prepareUrl, + prepareProtocol, + prepareOptions, + preparePayload, + prepareCleanup + ]; + + let promiseChain = Promise.resolve([request, response, requestState]); + + middlewareFunctions.forEach((middleware) => { + // We must use the functional construct here, to avoid losing references + promiseChain = promiseChain.spread((_request, _response, _requestState) => middleware(_request, _response, _requestState)); + }); + + return promiseChain; + }); +}; + +const makeRequest = function(request, response, requestState) { + debugRequest("making %s request to %s", request.options.method.toUpperCase(), request.url); + return Promise.try(function() { + // Instantiate a regular HTTP/HTTPS request + const req = request.protocolModule.request(request.options); + + let timeoutTimer = null; + + return new Promise(function(resolve, reject) { + // Connection timeout handling, if one is set. + if (request.responseOptions.responseTimeout != null) { + debugRequest(`setting response timeout timer to ${request.responseOptions.responseTimeout}ms...`); + req.on("socket", function(_socket) { + const timeoutHandler = function() { + debugRequest("a response timeout occurred!"); + req.abort(); + return reject(addErrorData(new bhttpErrors.ResponseTimeoutError("The response timed out."))); + }; + + timeoutTimer = setTimeout(timeoutHandler, request.responseOptions.responseTimeout); + }); + } + + // Set up the upload progress monitoring. + const totalBytes = request.options.headers["content-length"]; + let completedBytes = 0; + + const progressStream = spy(function(chunk) { + completedBytes += chunk.length; + return req.emit("progress", completedBytes, totalBytes); + }); + + if (request.onUploadProgress != null) { + req.on("progress", (completedBytes, totalBytes) => request.onUploadProgress(completedBytes, totalBytes, req)); + } + + // This is where we write our payload or stream to the request, and the actual request is made. + if (request.payload != null) { + // The entire payload is a single Buffer. We'll still pretend that it's a stream for our progress events, though, to provide a consistent API. + debugRequest("sending payload"); + req.emit("progress", request.payload.length, request.payload.length); + req.write(request.payload); + req.end(); + } else if (request.payloadStream != null) { + // The payload is a stream. + debugRequest("piping payloadStream"); + if (request.payloadStream._bhttpStreamWrapper != null) { + request.payloadStream.stream + .pipe(progressStream) + .pipe(req); + } else { + request.payloadStream + .pipe(progressStream) + .pipe(req); + } + } else { + // For GET, HEAD, DELETE, etc. there is no payload, but we still need to call end() to complete the request. + debugRequest("closing request without payload"); + req.end(); + } + + // In case something goes wrong during this process, somehow... + req.on("error", function(err) { + if (err.code === "ETIMEDOUT") { + debugRequest("a connection timeout occurred!"); + return reject(addErrorData(new bhttpErrors.ConnectionTimeoutError("The connection timed out."))); + } else { + return reject(err); + } + }); + + return req.on("response", function(res) { + if (timeoutTimer != null) { + debugResponse("got response in time, clearing response timeout timer"); + clearTimeout(timeoutTimer); + } + return resolve(res); + }); + });}).then(response => Promise.resolve([request, response, requestState])); +}; + +const processResponse = function(request, response, requestState) { + debugResponse("processing response, got status code %s", response.statusCode); + + // When we receive the response, we'll buffer it up and/or decode it, depending on what the user specified, and resolve the returned Promise. If the user just wants the raw stream, we resolve immediately after receiving a response. + + return Promise.try(function() { + // First, if a cookie jar is set and we received one or more cookies from the server, we should store them in our cookieJar. + if ((request.cookieJar != null) && (response.headers["set-cookie"] != null)) { + const promises = (() => { + const result = []; + for (let cookieHeader of response.headers["set-cookie"]) { + debugResponse("storing cookie: %s", cookieHeader); + result.push(request.cookieJar.set(cookieHeader, request.url)); + } + return result; + })(); + return Promise.all(promises); + } else { + return Promise.resolve(); + }}).then(function() { + // Now the actual response processing. + response.request = request; + response.requestState = requestState; + response.redirectHistory = requestState.redirectHistory; + + if ([301, 302, 303, 307].includes(response.statusCode) && request.responseOptions.followRedirects) { + if (requestState.redirectHistory.length >= (request.responseOptions.redirectLimit - 1)) { + return Promise.reject(addErrorData(new bhttpErrors.RedirectError("The maximum amount of redirects ({request.responseOptions.redirectLimit}) was reached."))); + } + + // 301: For GET and HEAD, redirect unchanged. For POST, PUT, PATCH, DELETE, "ask user" (in our case: throw an error.) + // 302: Redirect, change method to GET. + // 303: Redirect, change method to GET. + // 307: Redirect, retain method. Make same request again. + switch (response.statusCode) { + case 301: + switch (request.options.method) { + case "get": case "head": + return redirectUnchanged(request, response, requestState); + case "post": case "put": case "patch": case "delete": + return Promise.reject(addErrorData(new bhttpErrors.RedirectError("Encountered a 301 redirect for POST, PUT, PATCH or DELETE. RFC says we can't automatically continue."), request, response, requestState)); + default: + return Promise.reject(addErrorData(new bhttpErrors.RedirectError(`Encountered a 301 redirect, but not sure how to proceed for the ${request.options.method.toUpperCase()} method.`))); + } + case 302: case 303: + return redirectGet(request, response, requestState); + case 307: + if (request.containsStreams && !["get", "head"].includes(request.options.method)) { + return Promise.reject(addErrorData(new bhttpErrors.RedirectError("Encountered a 307 redirect for POST, PUT or DELETE, but your payload contained (single-use) streams. We therefore can't automatically follow the redirect."), request, response, requestState)); + } else { + return redirectUnchanged(request, response, requestState); + } + } + } else if (request.responseOptions.discardResponse) { + response.pipe(devNull()); // Drain the response stream + return Promise.resolve(response); + } else { + let totalBytes = response.headers["content-length"]; + if (totalBytes != null) { // Otherwise `undefined` will turn into `NaN`, and we don't want that. + totalBytes = parseInt(totalBytes); + } + let completedBytes = 0; + + const progressStream = sink(function(chunk) { + completedBytes += chunk.length; + return response.emit("progress", completedBytes, totalBytes); + }); + + if (request.responseOptions.onDownloadProgress != null) { + response.on("progress", (completedBytes, totalBytes) => request.responseOptions.onDownloadProgress(completedBytes, totalBytes, response)); + } + + return new Promise(function(resolve, reject) { + // This is a very, very dirty hack - however, using .pipe followed by .pause breaks in Node.js v0.10.35 with "Cannot switch to old mode now". Our solution is to monkeypatch the `on` and `resume` methods to attach the progress event handler as soon as something else is attached to the response stream (or when it is drained). This way, a user can also pipe the response in a later tick, without the stream draining prematurely. + const _resume = response.resume.bind(response); + const _on = response.on.bind(response); + let _progressStreamAttached = false; + + const attachProgressStream = function() { + // To keep this from sending us into an infinite loop. + if (!_progressStreamAttached) { + debugResponse("attaching progress stream"); + _progressStreamAttached = true; + return response.pipe(progressStream); + } + }; + + response.on = function(eventName, handler) { + debugResponse(`'on' called, ${eventName}`); + if ((eventName === "data") || (eventName === "readable")) { + attachProgressStream(); + } + return _on(eventName, handler); + }; + + response.resume = function() { + attachProgressStream(); + return _resume(); + }; + + // Continue with the regular response processing. + if (request.responseOptions.stream) { + return resolve(response); + } else { + response.on("error", err => reject(err)); + + return response.pipe(concatStream(function(body) { + // FIXME: Separate module for header parsing? + if (request.responseOptions.decodeJSON || (((response.headers["content-type"] != null ? response.headers["content-type"] : "").split(";")[0] === "application/json") && !request.responseOptions.noDecode)) { + try { + response.body = JSON.parse(body); + } catch (err) { + reject(err); + } + } else { + response.body = body; + } + + return resolve(response); + }) + ); + } + }); + }}).then(response => Promise.resolve([request, response, requestState])); +}; + +// Some wrappers + +const doPayloadRequest = function(url, data, options, callback) { + // A wrapper that processes the second argument to .post, .put, .patch shorthand API methods. + // FIXME: Treat a {} for data as a null? Otherwise {} combined with inputBuffer/inputStream will error. + if (isStream(data)) { + options.inputStream = data; + } else if (ofTypes(data, [Buffer]) || (typeof data === "string")) { + options.inputBuffer = data; + } else { + options.formFields = data; + } + + return this.request(url, options, callback); +}; + +var redirectGet = function(request, response, requestState) { + debugResponse("following forced-GET redirect to %s", response.headers["location"]); + return Promise.try(function() { + const options = shallowClone(requestState.originalOptions); + options.method = "get"; + + for (let key of ["inputBuffer", "inputStream", "files", "formFields"]) { delete options[key]; } + + return doRedirect(request, response, requestState, options); + }); +}; + +var redirectUnchanged = function(request, response, requestState) { + debugResponse("following same-method redirect to %s", response.headers["location"]); + return Promise.try(function() { + const options = shallowClone(requestState.originalOptions); + return doRedirect(request, response, requestState, options); + }); +}; + +var doRedirect = (request, response, requestState, newOptions) => Promise.try(function() { + if (!request.responseOptions.keepRedirectResponses) { + response.pipe(devNull()); // Let the response stream drain out... + } + + requestState.redirectHistory.push(response); + return bhttpAPI._doRequest(urlUtil.resolve(request.url, response.headers["location"]), newOptions, requestState); +}); + +const createCookieJar = function(jar) { + // Creates a cookie jar wrapper with a simplified API. + return { + set(cookie, url) { + return new Promise((resolve, reject) => { + return this.jar.setCookie(cookie, url, function(err, cookie) { + if (err) { return reject(err); } else { return resolve(cookie); } + }); + }); + }, + get(url) { + return new Promise((resolve, reject) => { + return this.jar.getCookieString(url, function(err, cookies) { + if (err) { return reject(err); } else { return resolve(cookies); } + }); + }); + }, + jar + }; +}; + +// The exposed API + +var bhttpAPI = { + head(url, options, callback) { + if (options == null) { options = {}; } + options.method = "head"; + return this.request(url, options, callback); + }, + get(url, options, callback) { + if (options == null) { options = {}; } + options.method = "get"; + return this.request(url, options, callback); + }, + post(url, data, options, callback) { + if (options == null) { options = {}; } + options.method = "post"; + return doPayloadRequest.bind(this)(url, data, options, callback); + }, + put(url, data, options, callback) { + if (options == null) { options = {}; } + options.method = "put"; + return doPayloadRequest.bind(this)(url, data, options, callback); + }, + patch(url, data, options, callback) { + if (options == null) { options = {}; } + options.method = "patch"; + return doPayloadRequest.bind(this)(url, data, options, callback); + }, + delete(url, options, callback) { + if (options == null) { options = {}; } + options.method = "delete"; + return this.request(url, options, callback); + }, + request(url, options, callback) { + if (options == null) { options = {}; } + return this._doRequest(url, options).nodeify(callback); + }, + _doRequest(url, options, requestState) { + // This is split from the `request` method, so that the user doesn't have to pass in `undefined` for the `requestState` when they want to specify a `callback`. + return Promise.try(() => { + const request = {url, options: shallowClone(options)}; + const response = null; + if (requestState == null) { requestState = {originalOptions: shallowClone(options), redirectHistory: []}; } + if (requestState.sessionOptions == null) { requestState.sessionOptions = this._sessionOptions != null ? this._sessionOptions : {}; } + + return prepareRequest(request, response, requestState); + }).spread((request, response, requestState) => { + if (request.responseOptions.justPrepare) { + return Promise.resolve([request, response, requestState]); + } else { + return Promise.try(() => { + return bhttpAPI.executeRequest(request, response, requestState); + }).spread((request, response, _requestState) => { + // The user likely only wants the response. + return Promise.resolve(response); + }); + } + }); + }, + executeRequest(request, response, requestState) { + // Executes a pre-configured request. + return Promise.try(() => makeRequest(request, response, requestState)).spread((request, response, requestState) => processResponse(request, response, requestState)); + }, + session(options) { + if (options == null) { options = {}; } + options = shallowClone(options); + const session = {}; + + for (let key in this) { + let value = this[key]; + if (value instanceof Function) { + value = value.bind(session); + } + session[key] = value; + } + + if ((options.cookieJar == null)) { + options.cookieJar = createCookieJar(new toughCookie.CookieJar()); + } else if (options.cookieJar === false) { + delete options.cookieJar; + } else { + // Assume we've gotten a cookie jar. + options.cookieJar = createCookieJar(options.cookieJar); + } + + session._sessionOptions = options; + + return session; + }, + wrapStream(stream, options) { + // This is a method for wrapping a stream in an object that also contains metadata. + return { + _bhttpStreamWrapper: true, + stream, + options + }; + } +}; + +extend(bhttpAPI, bhttpErrors); + +module.exports = bhttpAPI; + +// That's all, folks! diff --git a/test-bhttp.coffee b/test/test-bhttp.coffee similarity index 100% rename from test-bhttp.coffee rename to test/test-bhttp.coffee diff --git a/test-cookies.coffee b/test/test-cookies.coffee similarity index 100% rename from test-cookies.coffee rename to test/test-cookies.coffee diff --git a/test/test-exit.coffee b/test/test-exit.coffee new file mode 100644 index 0000000..9e256c0 --- /dev/null +++ b/test/test-exit.coffee @@ -0,0 +1,14 @@ +fs = require "fs" +stream = require "stream" + +transform = new stream.Transform(highWaterMark: 200 * 1024) +transform._transform = (chunk, encoding, callback) -> + console.log "Got chunk, length", chunk.length + @push chunk + callback() + +console.log "Starting stream..." +fs.createReadStream "./lower.txt" + .pipe transform + .on "end", -> + console.log "Done!" diff --git a/test/test-exit2.js b/test/test-exit2.js new file mode 100644 index 0000000..52ecf1f --- /dev/null +++ b/test/test-exit2.js @@ -0,0 +1,36 @@ +var net = require('net'); +var stream = require("stream"); +var util = require('util'); + +function MyTransformStream(options) { + stream.Transform.call(this, options); +} +util.inherits(MyTransformStream, stream.Transform); + +MyTransformStream.prototype._transform = function _transform(chunk, encoding, callback) { + console.log("Got chunk, length", chunk.length); + this.push(chunk); + return callback(); +}; + +var transformStream = new MyTransformStream({ + highWaterMark: 200 * 102 +}); + +transformStream.on('end', function onEnd() { + console.log('Got end on transform stream!'); +}); + +// Start reading on the transform stream so that +// the pipeline is kept flowing +//transformStream.on('data', function() {}); + +var server = net.createServer(function onConnection(socket) { + // Make sure that libuv's loop is not kept alive by the server's handle + server.unref(); + socket.pipe(transformStream); +}); + +server.listen(4242, function() { + console.log('server listening...'); +}); diff --git a/test-https-stream.coffee b/test/test-https-stream.coffee similarity index 100% rename from test-https-stream.coffee rename to test/test-https-stream.coffee diff --git a/test-leak.coffee b/test/test-leak.coffee similarity index 100% rename from test-leak.coffee rename to test/test-leak.coffee diff --git a/test-progress.coffee b/test/test-progress.coffee similarity index 100% rename from test-progress.coffee rename to test/test-progress.coffee diff --git a/test-timeout.coffee b/test/test-timeout.coffee similarity index 100% rename from test-timeout.coffee rename to test/test-timeout.coffee diff --git a/testcase1.js b/test/testcase1.js similarity index 100% rename from testcase1.js rename to test/testcase1.js diff --git a/yarn.lock b/yarn.lock new file mode 100644 index 0000000..0316070 --- /dev/null +++ b/yarn.lock @@ -0,0 +1,2728 @@ +# THIS IS AN AUTOGENERATED FILE. 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