summaryrefslogtreecommitdiff
path: root/launcher/server/node_modules/follow-redirects/index.js
diff options
context:
space:
mode:
Diffstat (limited to 'launcher/server/node_modules/follow-redirects/index.js')
-rw-r--r--launcher/server/node_modules/follow-redirects/index.js621
1 files changed, 0 insertions, 621 deletions
diff --git a/launcher/server/node_modules/follow-redirects/index.js b/launcher/server/node_modules/follow-redirects/index.js
deleted file mode 100644
index 3e199c1..0000000
--- a/launcher/server/node_modules/follow-redirects/index.js
+++ /dev/null
@@ -1,621 +0,0 @@
-var url = require("url");
-var URL = url.URL;
-var http = require("http");
-var https = require("https");
-var Writable = require("stream").Writable;
-var assert = require("assert");
-var debug = require("./debug");
-
-// Create handlers that pass events from native requests
-var events = ["abort", "aborted", "connect", "error", "socket", "timeout"];
-var eventHandlers = Object.create(null);
-events.forEach(function (event) {
- eventHandlers[event] = function (arg1, arg2, arg3) {
- this._redirectable.emit(event, arg1, arg2, arg3);
- };
-});
-
-var InvalidUrlError = createErrorType(
- "ERR_INVALID_URL",
- "Invalid URL",
- TypeError
-);
-// Error types with codes
-var RedirectionError = createErrorType(
- "ERR_FR_REDIRECTION_FAILURE",
- "Redirected request failed"
-);
-var TooManyRedirectsError = createErrorType(
- "ERR_FR_TOO_MANY_REDIRECTS",
- "Maximum number of redirects exceeded"
-);
-var MaxBodyLengthExceededError = createErrorType(
- "ERR_FR_MAX_BODY_LENGTH_EXCEEDED",
- "Request body larger than maxBodyLength limit"
-);
-var WriteAfterEndError = createErrorType(
- "ERR_STREAM_WRITE_AFTER_END",
- "write after end"
-);
-
-// An HTTP(S) request that can be redirected
-function RedirectableRequest(options, responseCallback) {
- // Initialize the request
- Writable.call(this);
- this._sanitizeOptions(options);
- this._options = options;
- this._ended = false;
- this._ending = false;
- this._redirectCount = 0;
- this._redirects = [];
- this._requestBodyLength = 0;
- this._requestBodyBuffers = [];
-
- // Attach a callback if passed
- if (responseCallback) {
- this.on("response", responseCallback);
- }
-
- // React to responses of native requests
- var self = this;
- this._onNativeResponse = function (response) {
- self._processResponse(response);
- };
-
- // Perform the first request
- this._performRequest();
-}
-RedirectableRequest.prototype = Object.create(Writable.prototype);
-
-RedirectableRequest.prototype.abort = function () {
- abortRequest(this._currentRequest);
- this.emit("abort");
-};
-
-// Writes buffered data to the current native request
-RedirectableRequest.prototype.write = function (data, encoding, callback) {
- // Writing is not allowed if end has been called
- if (this._ending) {
- throw new WriteAfterEndError();
- }
-
- // Validate input and shift parameters if necessary
- if (!isString(data) && !isBuffer(data)) {
- throw new TypeError("data should be a string, Buffer or Uint8Array");
- }
- if (isFunction(encoding)) {
- callback = encoding;
- encoding = null;
- }
-
- // Ignore empty buffers, since writing them doesn't invoke the callback
- // https://github.com/nodejs/node/issues/22066
- if (data.length === 0) {
- if (callback) {
- callback();
- }
- return;
- }
- // Only write when we don't exceed the maximum body length
- if (this._requestBodyLength + data.length <= this._options.maxBodyLength) {
- this._requestBodyLength += data.length;
- this._requestBodyBuffers.push({ data: data, encoding: encoding });
- this._currentRequest.write(data, encoding, callback);
- }
- // Error when we exceed the maximum body length
- else {
- this.emit("error", new MaxBodyLengthExceededError());
- this.abort();
- }
-};
-
-// Ends the current native request
-RedirectableRequest.prototype.end = function (data, encoding, callback) {
- // Shift parameters if necessary
- if (isFunction(data)) {
- callback = data;
- data = encoding = null;
- }
- else if (isFunction(encoding)) {
- callback = encoding;
- encoding = null;
- }
-
- // Write data if needed and end
- if (!data) {
- this._ended = this._ending = true;
- this._currentRequest.end(null, null, callback);
- }
- else {
- var self = this;
- var currentRequest = this._currentRequest;
- this.write(data, encoding, function () {
- self._ended = true;
- currentRequest.end(null, null, callback);
- });
- this._ending = true;
- }
-};
-
-// Sets a header value on the current native request
-RedirectableRequest.prototype.setHeader = function (name, value) {
- this._options.headers[name] = value;
- this._currentRequest.setHeader(name, value);
-};
-
-// Clears a header value on the current native request
-RedirectableRequest.prototype.removeHeader = function (name) {
- delete this._options.headers[name];
- this._currentRequest.removeHeader(name);
-};
-
-// Global timeout for all underlying requests
-RedirectableRequest.prototype.setTimeout = function (msecs, callback) {
- var self = this;
-
- // Destroys the socket on timeout
- function destroyOnTimeout(socket) {
- socket.setTimeout(msecs);
- socket.removeListener("timeout", socket.destroy);
- socket.addListener("timeout", socket.destroy);
- }
-
- // Sets up a timer to trigger a timeout event
- function startTimer(socket) {
- if (self._timeout) {
- clearTimeout(self._timeout);
- }
- self._timeout = setTimeout(function () {
- self.emit("timeout");
- clearTimer();
- }, msecs);
- destroyOnTimeout(socket);
- }
-
- // Stops a timeout from triggering
- function clearTimer() {
- // Clear the timeout
- if (self._timeout) {
- clearTimeout(self._timeout);
- self._timeout = null;
- }
-
- // Clean up all attached listeners
- self.removeListener("abort", clearTimer);
- self.removeListener("error", clearTimer);
- self.removeListener("response", clearTimer);
- if (callback) {
- self.removeListener("timeout", callback);
- }
- if (!self.socket) {
- self._currentRequest.removeListener("socket", startTimer);
- }
- }
-
- // Attach callback if passed
- if (callback) {
- this.on("timeout", callback);
- }
-
- // Start the timer if or when the socket is opened
- if (this.socket) {
- startTimer(this.socket);
- }
- else {
- this._currentRequest.once("socket", startTimer);
- }
-
- // Clean up on events
- this.on("socket", destroyOnTimeout);
- this.on("abort", clearTimer);
- this.on("error", clearTimer);
- this.on("response", clearTimer);
-
- return this;
-};
-
-// Proxy all other public ClientRequest methods
-[
- "flushHeaders", "getHeader",
- "setNoDelay", "setSocketKeepAlive",
-].forEach(function (method) {
- RedirectableRequest.prototype[method] = function (a, b) {
- return this._currentRequest[method](a, b);
- };
-});
-
-// Proxy all public ClientRequest properties
-["aborted", "connection", "socket"].forEach(function (property) {
- Object.defineProperty(RedirectableRequest.prototype, property, {
- get: function () { return this._currentRequest[property]; },
- });
-});
-
-RedirectableRequest.prototype._sanitizeOptions = function (options) {
- // Ensure headers are always present
- if (!options.headers) {
- options.headers = {};
- }
-
- // Since http.request treats host as an alias of hostname,
- // but the url module interprets host as hostname plus port,
- // eliminate the host property to avoid confusion.
- if (options.host) {
- // Use hostname if set, because it has precedence
- if (!options.hostname) {
- options.hostname = options.host;
- }
- delete options.host;
- }
-
- // Complete the URL object when necessary
- if (!options.pathname && options.path) {
- var searchPos = options.path.indexOf("?");
- if (searchPos < 0) {
- options.pathname = options.path;
- }
- else {
- options.pathname = options.path.substring(0, searchPos);
- options.search = options.path.substring(searchPos);
- }
- }
-};
-
-
-// Executes the next native request (initial or redirect)
-RedirectableRequest.prototype._performRequest = function () {
- // Load the native protocol
- var protocol = this._options.protocol;
- var nativeProtocol = this._options.nativeProtocols[protocol];
- if (!nativeProtocol) {
- this.emit("error", new TypeError("Unsupported protocol " + protocol));
- return;
- }
-
- // If specified, use the agent corresponding to the protocol
- // (HTTP and HTTPS use different types of agents)
- if (this._options.agents) {
- var scheme = protocol.slice(0, -1);
- this._options.agent = this._options.agents[scheme];
- }
-
- // Create the native request and set up its event handlers
- var request = this._currentRequest =
- nativeProtocol.request(this._options, this._onNativeResponse);
- request._redirectable = this;
- for (var event of events) {
- request.on(event, eventHandlers[event]);
- }
-
- // RFC7230§5.3.1: When making a request directly to an origin server, […]
- // a client MUST send only the absolute path […] as the request-target.
- this._currentUrl = /^\//.test(this._options.path) ?
- url.format(this._options) :
- // When making a request to a proxy, […]
- // a client MUST send the target URI in absolute-form […].
- this._options.path;
-
- // End a redirected request
- // (The first request must be ended explicitly with RedirectableRequest#end)
- if (this._isRedirect) {
- // Write the request entity and end
- var i = 0;
- var self = this;
- var buffers = this._requestBodyBuffers;
- (function writeNext(error) {
- // Only write if this request has not been redirected yet
- /* istanbul ignore else */
- if (request === self._currentRequest) {
- // Report any write errors
- /* istanbul ignore if */
- if (error) {
- self.emit("error", error);
- }
- // Write the next buffer if there are still left
- else if (i < buffers.length) {
- var buffer = buffers[i++];
- /* istanbul ignore else */
- if (!request.finished) {
- request.write(buffer.data, buffer.encoding, writeNext);
- }
- }
- // End the request if `end` has been called on us
- else if (self._ended) {
- request.end();
- }
- }
- }());
- }
-};
-
-// Processes a response from the current native request
-RedirectableRequest.prototype._processResponse = function (response) {
- // Store the redirected response
- var statusCode = response.statusCode;
- if (this._options.trackRedirects) {
- this._redirects.push({
- url: this._currentUrl,
- headers: response.headers,
- statusCode: statusCode,
- });
- }
-
- // RFC7231§6.4: The 3xx (Redirection) class of status code indicates
- // that further action needs to be taken by the user agent in order to
- // fulfill the request. If a Location header field is provided,
- // the user agent MAY automatically redirect its request to the URI
- // referenced by the Location field value,
- // even if the specific status code is not understood.
-
- // If the response is not a redirect; return it as-is
- var location = response.headers.location;
- if (!location || this._options.followRedirects === false ||
- statusCode < 300 || statusCode >= 400) {
- response.responseUrl = this._currentUrl;
- response.redirects = this._redirects;
- this.emit("response", response);
-
- // Clean up
- this._requestBodyBuffers = [];
- return;
- }
-
- // The response is a redirect, so abort the current request
- abortRequest(this._currentRequest);
- // Discard the remainder of the response to avoid waiting for data
- response.destroy();
-
- // RFC7231§6.4: A client SHOULD detect and intervene
- // in cyclical redirections (i.e., "infinite" redirection loops).
- if (++this._redirectCount > this._options.maxRedirects) {
- this.emit("error", new TooManyRedirectsError());
- return;
- }
-
- // Store the request headers if applicable
- var requestHeaders;
- var beforeRedirect = this._options.beforeRedirect;
- if (beforeRedirect) {
- requestHeaders = Object.assign({
- // The Host header was set by nativeProtocol.request
- Host: response.req.getHeader("host"),
- }, this._options.headers);
- }
-
- // RFC7231§6.4: Automatic redirection needs to done with
- // care for methods not known to be safe, […]
- // RFC7231§6.4.2–3: For historical reasons, a user agent MAY change
- // the request method from POST to GET for the subsequent request.
- var method = this._options.method;
- if ((statusCode === 301 || statusCode === 302) && this._options.method === "POST" ||
- // RFC7231§6.4.4: The 303 (See Other) status code indicates that
- // the server is redirecting the user agent to a different resource […]
- // A user agent can perform a retrieval request targeting that URI
- // (a GET or HEAD request if using HTTP) […]
- (statusCode === 303) && !/^(?:GET|HEAD)$/.test(this._options.method)) {
- this._options.method = "GET";
- // Drop a possible entity and headers related to it
- this._requestBodyBuffers = [];
- removeMatchingHeaders(/^content-/i, this._options.headers);
- }
-
- // Drop the Host header, as the redirect might lead to a different host
- var currentHostHeader = removeMatchingHeaders(/^host$/i, this._options.headers);
-
- // If the redirect is relative, carry over the host of the last request
- var currentUrlParts = url.parse(this._currentUrl);
- var currentHost = currentHostHeader || currentUrlParts.host;
- var currentUrl = /^\w+:/.test(location) ? this._currentUrl :
- url.format(Object.assign(currentUrlParts, { host: currentHost }));
-
- // Determine the URL of the redirection
- var redirectUrl;
- try {
- redirectUrl = url.resolve(currentUrl, location);
- }
- catch (cause) {
- this.emit("error", new RedirectionError({ cause: cause }));
- return;
- }
-
- // Create the redirected request
- debug("redirecting to", redirectUrl);
- this._isRedirect = true;
- var redirectUrlParts = url.parse(redirectUrl);
- Object.assign(this._options, redirectUrlParts);
-
- // Drop confidential headers when redirecting to a less secure protocol
- // or to a different domain that is not a superdomain
- if (redirectUrlParts.protocol !== currentUrlParts.protocol &&
- redirectUrlParts.protocol !== "https:" ||
- redirectUrlParts.host !== currentHost &&
- !isSubdomain(redirectUrlParts.host, currentHost)) {
- removeMatchingHeaders(/^(?:authorization|cookie)$/i, this._options.headers);
- }
-
- // Evaluate the beforeRedirect callback
- if (isFunction(beforeRedirect)) {
- var responseDetails = {
- headers: response.headers,
- statusCode: statusCode,
- };
- var requestDetails = {
- url: currentUrl,
- method: method,
- headers: requestHeaders,
- };
- try {
- beforeRedirect(this._options, responseDetails, requestDetails);
- }
- catch (err) {
- this.emit("error", err);
- return;
- }
- this._sanitizeOptions(this._options);
- }
-
- // Perform the redirected request
- try {
- this._performRequest();
- }
- catch (cause) {
- this.emit("error", new RedirectionError({ cause: cause }));
- }
-};
-
-// Wraps the key/value object of protocols with redirect functionality
-function wrap(protocols) {
- // Default settings
- var exports = {
- maxRedirects: 21,
- maxBodyLength: 10 * 1024 * 1024,
- };
-
- // Wrap each protocol
- var nativeProtocols = {};
- Object.keys(protocols).forEach(function (scheme) {
- var protocol = scheme + ":";
- var nativeProtocol = nativeProtocols[protocol] = protocols[scheme];
- var wrappedProtocol = exports[scheme] = Object.create(nativeProtocol);
-
- // Executes a request, following redirects
- function request(input, options, callback) {
- // Parse parameters
- if (isString(input)) {
- var parsed;
- try {
- parsed = urlToOptions(new URL(input));
- }
- catch (err) {
- /* istanbul ignore next */
- parsed = url.parse(input);
- }
- if (!isString(parsed.protocol)) {
- throw new InvalidUrlError({ input });
- }
- input = parsed;
- }
- else if (URL && (input instanceof URL)) {
- input = urlToOptions(input);
- }
- else {
- callback = options;
- options = input;
- input = { protocol: protocol };
- }
- if (isFunction(options)) {
- callback = options;
- options = null;
- }
-
- // Set defaults
- options = Object.assign({
- maxRedirects: exports.maxRedirects,
- maxBodyLength: exports.maxBodyLength,
- }, input, options);
- options.nativeProtocols = nativeProtocols;
- if (!isString(options.host) && !isString(options.hostname)) {
- options.hostname = "::1";
- }
-
- assert.equal(options.protocol, protocol, "protocol mismatch");
- debug("options", options);
- return new RedirectableRequest(options, callback);
- }
-
- // Executes a GET request, following redirects
- function get(input, options, callback) {
- var wrappedRequest = wrappedProtocol.request(input, options, callback);
- wrappedRequest.end();
- return wrappedRequest;
- }
-
- // Expose the properties on the wrapped protocol
- Object.defineProperties(wrappedProtocol, {
- request: { value: request, configurable: true, enumerable: true, writable: true },
- get: { value: get, configurable: true, enumerable: true, writable: true },
- });
- });
- return exports;
-}
-
-/* istanbul ignore next */
-function noop() { /* empty */ }
-
-// from https://github.com/nodejs/node/blob/master/lib/internal/url.js
-function urlToOptions(urlObject) {
- var options = {
- protocol: urlObject.protocol,
- hostname: urlObject.hostname.startsWith("[") ?
- /* istanbul ignore next */
- urlObject.hostname.slice(1, -1) :
- urlObject.hostname,
- hash: urlObject.hash,
- search: urlObject.search,
- pathname: urlObject.pathname,
- path: urlObject.pathname + urlObject.search,
- href: urlObject.href,
- };
- if (urlObject.port !== "") {
- options.port = Number(urlObject.port);
- }
- return options;
-}
-
-function removeMatchingHeaders(regex, headers) {
- var lastValue;
- for (var header in headers) {
- if (regex.test(header)) {
- lastValue = headers[header];
- delete headers[header];
- }
- }
- return (lastValue === null || typeof lastValue === "undefined") ?
- undefined : String(lastValue).trim();
-}
-
-function createErrorType(code, message, baseClass) {
- // Create constructor
- function CustomError(properties) {
- Error.captureStackTrace(this, this.constructor);
- Object.assign(this, properties || {});
- this.code = code;
- this.message = this.cause ? message + ": " + this.cause.message : message;
- }
-
- // Attach constructor and set default properties
- CustomError.prototype = new (baseClass || Error)();
- CustomError.prototype.constructor = CustomError;
- CustomError.prototype.name = "Error [" + code + "]";
- return CustomError;
-}
-
-function abortRequest(request) {
- for (var event of events) {
- request.removeListener(event, eventHandlers[event]);
- }
- request.on("error", noop);
- request.abort();
-}
-
-function isSubdomain(subdomain, domain) {
- assert(isString(subdomain) && isString(domain));
- var dot = subdomain.length - domain.length - 1;
- return dot > 0 && subdomain[dot] === "." && subdomain.endsWith(domain);
-}
-
-function isString(value) {
- return typeof value === "string" || value instanceof String;
-}
-
-function isFunction(value) {
- return typeof value === "function";
-}
-
-function isBuffer(value) {
- return typeof value === "object" && ("length" in value);
-}
-
-// Exports
-module.exports = wrap({ http: http, https: https });
-module.exports.wrap = wrap;