diff options
Diffstat (limited to 'node_modules/agent-base/dist/src/index.js')
| -rw-r--r-- | node_modules/agent-base/dist/src/index.js | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/node_modules/agent-base/dist/src/index.js b/node_modules/agent-base/dist/src/index.js new file mode 100644 index 0000000..bfd9e22 --- /dev/null +++ b/node_modules/agent-base/dist/src/index.js @@ -0,0 +1,203 @@ +"use strict"; +var __importDefault = (this && this.__importDefault) || function (mod) { + return (mod && mod.__esModule) ? mod : { "default": mod }; +}; +const events_1 = require("events"); +const debug_1 = __importDefault(require("debug")); +const promisify_1 = __importDefault(require("./promisify")); +const debug = debug_1.default('agent-base'); +function isAgent(v) { + return Boolean(v) && typeof v.addRequest === 'function'; +} +function isSecureEndpoint() { + const { stack } = new Error(); + if (typeof stack !== 'string') + return false; + return stack.split('\n').some(l => l.indexOf('(https.js:') !== -1 || l.indexOf('node:https:') !== -1); +} +function createAgent(callback, opts) { + return new createAgent.Agent(callback, opts); +} +(function (createAgent) { + /** + * Base `http.Agent` implementation. + * No pooling/keep-alive is implemented by default. + * + * @param {Function} callback + * @api public + */ + class Agent extends events_1.EventEmitter { + constructor(callback, _opts) { + super(); + let opts = _opts; + if (typeof callback === 'function') { + this.callback = callback; + } + else if (callback) { + opts = callback; + } + // Timeout for the socket to be returned from the callback + this.timeout = null; + if (opts && typeof opts.timeout === 'number') { + this.timeout = opts.timeout; + } + // These aren't actually used by `agent-base`, but are required + // for the TypeScript definition files in `@types/node` :/ + this.maxFreeSockets = 1; + this.maxSockets = 1; + this.maxTotalSockets = Infinity; + this.sockets = {}; + this.freeSockets = {}; + this.requests = {}; + this.options = {}; + } + get defaultPort() { + if (typeof this.explicitDefaultPort === 'number') { + return this.explicitDefaultPort; + } + return isSecureEndpoint() ? 443 : 80; + } + set defaultPort(v) { + this.explicitDefaultPort = v; + } + get protocol() { + if (typeof this.explicitProtocol === 'string') { + return this.explicitProtocol; + } + return isSecureEndpoint() ? 'https:' : 'http:'; + } + set protocol(v) { + this.explicitProtocol = v; + } + callback(req, opts, fn) { + throw new Error('"agent-base" has no default implementation, you must subclass and override `callback()`'); + } + /** + * Called by node-core's "_http_client.js" module when creating + * a new HTTP request with this Agent instance. + * + * @api public + */ + addRequest(req, _opts) { + const opts = Object.assign({}, _opts); + if (typeof opts.secureEndpoint !== 'boolean') { + opts.secureEndpoint = isSecureEndpoint(); + } + if (opts.host == null) { + opts.host = 'localhost'; + } + if (opts.port == null) { + opts.port = opts.secureEndpoint ? 443 : 80; + } + if (opts.protocol == null) { + opts.protocol = opts.secureEndpoint ? 'https:' : 'http:'; + } + if (opts.host && opts.path) { + // If both a `host` and `path` are specified then it's most + // likely the result of a `url.parse()` call... we need to + // remove the `path` portion so that `net.connect()` doesn't + // attempt to open that as a unix socket file. + delete opts.path; + } + delete opts.agent; + delete opts.hostname; + delete opts._defaultAgent; + delete opts.defaultPort; + delete opts.createConnection; + // Hint to use "Connection: close" + // XXX: non-documented `http` module API :( + req._last = true; + req.shouldKeepAlive = false; + let timedOut = false; + let timeoutId = null; + const timeoutMs = opts.timeout || this.timeout; + const onerror = (err) => { + if (req._hadError) + return; + req.emit('error', err); + // For Safety. Some additional errors might fire later on + // and we need to make sure we don't double-fire the error event. + req._hadError = true; + }; + const ontimeout = () => { + timeoutId = null; + timedOut = true; + const err = new Error(`A "socket" was not created for HTTP request before ${timeoutMs}ms`); + err.code = 'ETIMEOUT'; + onerror(err); + }; + const callbackError = (err) => { + if (timedOut) + return; + if (timeoutId !== null) { + clearTimeout(timeoutId); + timeoutId = null; + } + onerror(err); + }; + const onsocket = (socket) => { + if (timedOut) + return; + if (timeoutId != null) { + clearTimeout(timeoutId); + timeoutId = null; + } + if (isAgent(socket)) { + // `socket` is actually an `http.Agent` instance, so + // relinquish responsibility for this `req` to the Agent + // from here on + debug('Callback returned another Agent instance %o', socket.constructor.name); + socket.addRequest(req, opts); + return; + } + if (socket) { + socket.once('free', () => { + this.freeSocket(socket, opts); + }); + req.onSocket(socket); + return; + } + const err = new Error(`no Duplex stream was returned to agent-base for \`${req.method} ${req.path}\``); + onerror(err); + }; + if (typeof this.callback !== 'function') { + onerror(new Error('`callback` is not defined')); + return; + } + if (!this.promisifiedCallback) { + if (this.callback.length >= 3) { + debug('Converting legacy callback function to promise'); + this.promisifiedCallback = promisify_1.default(this.callback); + } + else { + this.promisifiedCallback = this.callback; + } + } + if (typeof timeoutMs === 'number' && timeoutMs > 0) { + timeoutId = setTimeout(ontimeout, timeoutMs); + } + if ('port' in opts && typeof opts.port !== 'number') { + opts.port = Number(opts.port); + } + try { + debug('Resolving socket for %o request: %o', opts.protocol, `${req.method} ${req.path}`); + Promise.resolve(this.promisifiedCallback(req, opts)).then(onsocket, callbackError); + } + catch (err) { + Promise.reject(err).catch(callbackError); + } + } + freeSocket(socket, opts) { + debug('Freeing socket %o %o', socket.constructor.name, opts); + socket.destroy(); + } + destroy() { + debug('Destroying agent %o', this.constructor.name); + } + } + createAgent.Agent = Agent; + // So that `instanceof` works correctly + createAgent.prototype = createAgent.Agent.prototype; +})(createAgent || (createAgent = {})); +module.exports = createAgent; +//# sourceMappingURL=index.js.map
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