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diff --git a/deps/node/deps/npm/node_modules/agentkeepalive/lib/_http_agent.js b/deps/node/deps/npm/node_modules/agentkeepalive/lib/_http_agent.js
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-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// patch from https://github.com/nodejs/node/blob/v7.2.1/lib/_http_agent.js
-
-'use strict';
-
-const net = require('net');
-const util = require('util');
-const EventEmitter = require('events');
-const debug = util.debuglog('http');
-
-// New Agent code.
-
-// The largest departure from the previous implementation is that
-// an Agent instance holds connections for a variable number of host:ports.
-// Surprisingly, this is still API compatible as far as third parties are
-// concerned. The only code that really notices the difference is the
-// request object.
-
-// Another departure is that all code related to HTTP parsing is in
-// ClientRequest.onSocket(). The Agent is now *strictly*
-// concerned with managing a connection pool.
-
-function Agent(options) {
- if (!(this instanceof Agent))
- return new Agent(options);
-
- EventEmitter.call(this);
-
- var self = this;
-
- self.defaultPort = 80;
- self.protocol = 'http:';
-
- self.options = util._extend({}, options);
-
- // don't confuse net and make it think that we're connecting to a pipe
- self.options.path = null;
- self.requests = {};
- self.sockets = {};
- self.freeSockets = {};
- self.keepAliveMsecs = self.options.keepAliveMsecs || 1000;
- self.keepAlive = self.options.keepAlive || false;
- self.maxSockets = self.options.maxSockets || Agent.defaultMaxSockets;
- self.maxFreeSockets = self.options.maxFreeSockets || 256;
-
- // [patch start]
- // free keep-alive socket timeout. By default free socket do not have a timeout.
- self.freeSocketKeepAliveTimeout = self.options.freeSocketKeepAliveTimeout || 0;
- // working socket timeout. By default working socket do not have a timeout.
- self.timeout = self.options.timeout || 0;
- // the socket active time to live, even if it's in use
- this.socketActiveTTL = this.options.socketActiveTTL || null;
- // [patch end]
-
- self.on('free', function(socket, options) {
- var name = self.getName(options);
- debug('agent.on(free)', name);
-
- if (socket.writable &&
- self.requests[name] && self.requests[name].length) {
- // [patch start]
- debug('continue handle next request');
- // [patch end]
- self.requests[name].shift().onSocket(socket);
- if (self.requests[name].length === 0) {
- // don't leak
- delete self.requests[name];
- }
- } else {
- // If there are no pending requests, then put it in
- // the freeSockets pool, but only if we're allowed to do so.
- var req = socket._httpMessage;
- if (req &&
- req.shouldKeepAlive &&
- socket.writable &&
- self.keepAlive) {
- var freeSockets = self.freeSockets[name];
- var freeLen = freeSockets ? freeSockets.length : 0;
- var count = freeLen;
- if (self.sockets[name])
- count += self.sockets[name].length;
-
- if (count > self.maxSockets || freeLen >= self.maxFreeSockets) {
- socket.destroy();
- } else {
- freeSockets = freeSockets || [];
- self.freeSockets[name] = freeSockets;
- socket.setKeepAlive(true, self.keepAliveMsecs);
- socket.unref();
- socket._httpMessage = null;
- self.removeSocket(socket, options);
- freeSockets.push(socket);
-
- // [patch start]
- // Add a default error handler to avoid Unhandled 'error' event throw on idle socket
- // https://github.com/node-modules/agentkeepalive/issues/25
- // https://github.com/nodejs/node/pull/4482 (fixed in >= 4.4.0 and >= 5.4.0)
- if (socket.listeners('error').length === 0) {
- socket.once('error', freeSocketErrorListener);
- }
- // set free keepalive timer
- // try to use socket custom freeSocketKeepAliveTimeout first
- const freeSocketKeepAliveTimeout = socket.freeSocketKeepAliveTimeout || self.freeSocketKeepAliveTimeout;
- socket.setTimeout(freeSocketKeepAliveTimeout);
- debug(`push to free socket queue and wait for ${freeSocketKeepAliveTimeout}ms`);
- // [patch end]
- }
- } else {
- socket.destroy();
- }
- }
- });
-}
-
-util.inherits(Agent, EventEmitter);
-exports.Agent = Agent;
-
-// [patch start]
-function freeSocketErrorListener(err) {
- var socket = this;
- debug('SOCKET ERROR on FREE socket:', err.message, err.stack);
- socket.destroy();
- socket.emit('agentRemove');
-}
-// [patch end]
-
-Agent.defaultMaxSockets = Infinity;
-
-Agent.prototype.createConnection = net.createConnection;
-
-// Get the key for a given set of request options
-Agent.prototype.getName = function getName(options) {
- var name = options.host || 'localhost';
-
- name += ':';
- if (options.port)
- name += options.port;
-
- name += ':';
- if (options.localAddress)
- name += options.localAddress;
-
- // Pacify parallel/test-http-agent-getname by only appending
- // the ':' when options.family is set.
- if (options.family === 4 || options.family === 6)
- name += ':' + options.family;
-
- return name;
-};
-
-// [patch start]
-function handleSocketCreation(req) {
- return function(err, newSocket) {
- if (err) {
- process.nextTick(function() {
- req.emit('error', err);
- });
- return;
- }
- req.onSocket(newSocket);
- }
-}
-// [patch end]
-
-Agent.prototype.addRequest = function addRequest(req, options, port/*legacy*/,
- localAddress/*legacy*/) {
- // Legacy API: addRequest(req, host, port, localAddress)
- if (typeof options === 'string') {
- options = {
- host: options,
- port,
- localAddress
- };
- }
-
- options = util._extend({}, options);
- options = util._extend(options, this.options);
-
- if (!options.servername)
- options.servername = calculateServerName(options, req);
-
- var name = this.getName(options);
- if (!this.sockets[name]) {
- this.sockets[name] = [];
- }
-
- var freeLen = this.freeSockets[name] ? this.freeSockets[name].length : 0;
- var sockLen = freeLen + this.sockets[name].length;
-
- if (freeLen) {
- // we have a free socket, so use that.
- var socket = this.freeSockets[name].shift();
- debug('have free socket');
-
- // [patch start]
- // remove free socket error event handler
- socket.removeListener('error', freeSocketErrorListener);
- // restart the default timer
- socket.setTimeout(this.timeout);
-
- if (this.socketActiveTTL && Date.now() - socket.createdTime > this.socketActiveTTL) {
- debug(`socket ${socket.createdTime} expired`);
- socket.destroy();
- return this.createSocket(req, options, handleSocketCreation(req));
- }
- // [patch end]
-
- // don't leak
- if (!this.freeSockets[name].length)
- delete this.freeSockets[name];
-
- socket.ref();
- req.onSocket(socket);
- this.sockets[name].push(socket);
- } else if (sockLen < this.maxSockets) {
- debug('call onSocket', sockLen, freeLen);
- // If we are under maxSockets create a new one.
- // [patch start]
- this.createSocket(req, options, handleSocketCreation(req));
- // [patch end]
- } else {
- debug('wait for socket');
- // We are over limit so we'll add it to the queue.
- if (!this.requests[name]) {
- this.requests[name] = [];
- }
- this.requests[name].push(req);
- }
-};
-
-Agent.prototype.createSocket = function createSocket(req, options, cb) {
- var self = this;
- options = util._extend({}, options);
- options = util._extend(options, self.options);
-
- if (!options.servername)
- options.servername = calculateServerName(options, req);
-
- var name = self.getName(options);
- options._agentKey = name;
-
- debug('createConnection', name, options);
- options.encoding = null;
- var called = false;
- const newSocket = self.createConnection(options, oncreate);
- // [patch start]
- if (newSocket) {
- oncreate(null, Object.assign(newSocket, { createdTime: Date.now() }));
- }
- // [patch end]
- function oncreate(err, s) {
- if (called)
- return;
- called = true;
- if (err)
- return cb(err);
- if (!self.sockets[name]) {
- self.sockets[name] = [];
- }
- self.sockets[name].push(s);
- debug('sockets', name, self.sockets[name].length);
-
- function onFree() {
- self.emit('free', s, options);
- }
- s.on('free', onFree);
-
- function onClose(err) {
- debug('CLIENT socket onClose');
- // This is the only place where sockets get removed from the Agent.
- // If you want to remove a socket from the pool, just close it.
- // All socket errors end in a close event anyway.
- self.removeSocket(s, options);
-
- // [patch start]
- self.emit('close');
- // [patch end]
- }
- s.on('close', onClose);
-
- // [patch start]
- // start socket timeout handler
- function onTimeout() {
- debug('CLIENT socket onTimeout');
- s.destroy();
- // Remove it from freeSockets immediately to prevent new requests from being sent through this socket.
- self.removeSocket(s, options);
- self.emit('timeout');
- }
- s.on('timeout', onTimeout);
- // set the default timer
- s.setTimeout(self.timeout);
- // [patch end]
-
- function onRemove() {
- // We need this function for cases like HTTP 'upgrade'
- // (defined by WebSockets) where we need to remove a socket from the
- // pool because it'll be locked up indefinitely
- debug('CLIENT socket onRemove');
- self.removeSocket(s, options);
- s.removeListener('close', onClose);
- s.removeListener('free', onFree);
- s.removeListener('agentRemove', onRemove);
-
- // [patch start]
- // remove socket timeout handler
- s.setTimeout(0, onTimeout);
- // [patch end]
- }
- s.on('agentRemove', onRemove);
- cb(null, s);
- }
-};
-
-function calculateServerName(options, req) {
- let servername = options.host;
- const hostHeader = req.getHeader('host');
- if (hostHeader) {
- // abc => abc
- // abc:123 => abc
- // [::1] => ::1
- // [::1]:123 => ::1
- if (hostHeader.startsWith('[')) {
- const index = hostHeader.indexOf(']');
- if (index === -1) {
- // Leading '[', but no ']'. Need to do something...
- servername = hostHeader;
- } else {
- servername = hostHeader.substr(1, index - 1);
- }
- } else {
- servername = hostHeader.split(':', 1)[0];
- }
- }
- return servername;
-}
-
-Agent.prototype.removeSocket = function removeSocket(s, options) {
- var name = this.getName(options);
- debug('removeSocket', name, 'writable:', s.writable);
- var sets = [this.sockets];
-
- // If the socket was destroyed, remove it from the free buffers too.
- if (!s.writable)
- sets.push(this.freeSockets);
-
- for (var sk = 0; sk < sets.length; sk++) {
- var sockets = sets[sk];
-
- if (sockets[name]) {
- var index = sockets[name].indexOf(s);
- if (index !== -1) {
- sockets[name].splice(index, 1);
- // Don't leak
- if (sockets[name].length === 0)
- delete sockets[name];
- }
- }
- }
-
- // [patch start]
- var freeLen = this.freeSockets[name] ? this.freeSockets[name].length : 0;
- var sockLen = freeLen + this.sockets[name] ? this.sockets[name].length : 0;
- // [patch end]
-
- if (this.requests[name] && this.requests[name].length && sockLen < this.maxSockets) {
- debug('removeSocket, have a request, make a socket');
- var req = this.requests[name][0];
- // If we have pending requests and a socket gets closed make a new one
- this.createSocket(req, options, function(err, newSocket) {
- if (err) {
- process.nextTick(function() {
- req.emit('error', err);
- });
- return;
- }
- newSocket.emit('free');
- });
- }
-};
-
-Agent.prototype.destroy = function destroy() {
- var sets = [this.freeSockets, this.sockets];
- for (var s = 0; s < sets.length; s++) {
- var set = sets[s];
- var keys = Object.keys(set);
- for (var v = 0; v < keys.length; v++) {
- var setName = set[keys[v]];
- for (var n = 0; n < setName.length; n++) {
- setName[n].destroy();
- }
- }
- }
-};
-
-exports.globalAgent = new Agent();