1 files changed, 796 insertions, 0 deletions
diff --git a/includes/external/addressbook/node_modules/http2-wrapper/source/agent.js b/includes/external/addressbook/node_modules/http2-wrapper/source/agent.js
new file mode 100644
index 0000000..922d202
--- /dev/null
+++ b/includes/external/addressbook/node_modules/http2-wrapper/source/agent.js
@@ -0,0 +1,796 @@
+'use strict';
+// See https://github.com/facebook/jest/issues/2549
+// eslint-disable-next-line node/prefer-global/url
+const {URL} = require('url');
+const EventEmitter = require('events');
+const tls = require('tls');
+const http2 = require('http2');
+const QuickLRU = require('quick-lru');
+const delayAsyncDestroy = require('./utils/delay-async-destroy.js');
+
+const kCurrentStreamCount = Symbol('currentStreamCount');
+const kRequest = Symbol('request');
+const kOriginSet = Symbol('cachedOriginSet');
+const kGracefullyClosing = Symbol('gracefullyClosing');
+const kLength = Symbol('length');
+
+const nameKeys = [
+	// Not an Agent option actually
+	'createConnection',
+
+	// `http2.connect()` options
+	'maxDeflateDynamicTableSize',
+	'maxSettings',
+	'maxSessionMemory',
+	'maxHeaderListPairs',
+	'maxOutstandingPings',
+	'maxReservedRemoteStreams',
+	'maxSendHeaderBlockLength',
+	'paddingStrategy',
+	'peerMaxConcurrentStreams',
+	'settings',
+
+	// `tls.connect()` source options
+	'family',
+	'localAddress',
+	'rejectUnauthorized',
+
+	// `tls.connect()` secure context options
+	'pskCallback',
+	'minDHSize',
+
+	// `tls.connect()` destination options
+	// - `servername` is automatically validated, skip it
+	// - `host` and `port` just describe the destination server,
+	'path',
+	'socket',
+
+	// `tls.createSecureContext()` options
+	'ca',
+	'cert',
+	'sigalgs',
+	'ciphers',
+	'clientCertEngine',
+	'crl',
+	'dhparam',
+	'ecdhCurve',
+	'honorCipherOrder',
+	'key',
+	'privateKeyEngine',
+	'privateKeyIdentifier',
+	'maxVersion',
+	'minVersion',
+	'pfx',
+	'secureOptions',
+	'secureProtocol',
+	'sessionIdContext',
+	'ticketKeys'
+];
+
+const getSortedIndex = (array, value, compare) => {
+	let low = 0;
+	let high = array.length;
+
+	while (low < high) {
+		const mid = (low + high) >>> 1;
+
+		if (compare(array[mid], value)) {
+			low = mid + 1;
+		} else {
+			high = mid;
+		}
+	}
+
+	return low;
+};
+
+const compareSessions = (a, b) => a.remoteSettings.maxConcurrentStreams > b.remoteSettings.maxConcurrentStreams;
+
+// See https://tools.ietf.org/html/rfc8336
+const closeCoveredSessions = (where, session) => {
+	// Clients SHOULD NOT emit new requests on any connection whose Origin
+	// Set is a proper subset of another connection's Origin Set, and they
+	// SHOULD close it once all outstanding requests are satisfied.
+	for (let index = 0; index < where.length; index++) {
+		const coveredSession = where[index];
+
+		if (
+			// Unfortunately `.every()` returns true for an empty array
+			coveredSession[kOriginSet].length > 0
+
+			// The set is a proper subset when its length is less than the other set.
+			&& coveredSession[kOriginSet].length < session[kOriginSet].length
+
+			// And the other set includes all elements of the subset.
+			&& coveredSession[kOriginSet].every(origin => session[kOriginSet].includes(origin))
+
+			// Makes sure that the session can handle all requests from the covered session.
+			&& (coveredSession[kCurrentStreamCount] + session[kCurrentStreamCount]) <= session.remoteSettings.maxConcurrentStreams
+		) {
+			// This allows pending requests to finish and prevents making new requests.
+			gracefullyClose(coveredSession);
+		}
+	}
+};
+
+// This is basically inverted `closeCoveredSessions(...)`.
+const closeSessionIfCovered = (where, coveredSession) => {
+	for (let index = 0; index < where.length; index++) {
+		const session = where[index];
+
+		if (
+			coveredSession[kOriginSet].length > 0
+			&& coveredSession[kOriginSet].length < session[kOriginSet].length
+			&& coveredSession[kOriginSet].every(origin => session[kOriginSet].includes(origin))
+			&& (coveredSession[kCurrentStreamCount] + session[kCurrentStreamCount]) <= session.remoteSettings.maxConcurrentStreams
+		) {
+			gracefullyClose(coveredSession);
+
+			return true;
+		}
+	}
+
+	return false;
+};
+
+const gracefullyClose = session => {
+	session[kGracefullyClosing] = true;
+
+	if (session[kCurrentStreamCount] === 0) {
+		session.close();
+	}
+};
+
+class Agent extends EventEmitter {
+	constructor({timeout = 0, maxSessions = Number.POSITIVE_INFINITY, maxEmptySessions = 10, maxCachedTlsSessions = 100} = {}) {
+		super();
+
+		// SESSIONS[NORMALIZED_OPTIONS] = [];
+		this.sessions = {};
+
+		// The queue for creating new sessions. It looks like this:
+		// QUEUE[NORMALIZED_OPTIONS][NORMALIZED_ORIGIN] = ENTRY_FUNCTION
+		//
+		// It's faster when there are many origins. If there's only one, then QUEUE[`${options}:${origin}`] is faster.
+		// I guess object creation / deletion is causing the slowdown.
+		//
+		// The entry function has `listeners`, `completed` and `destroyed` properties.
+		// `listeners` is an array of objects containing `resolve` and `reject` functions.
+		// `completed` is a boolean. It's set to true after ENTRY_FUNCTION is executed.
+		// `destroyed` is a boolean. If it's set to true, the session will be destroyed if hasn't connected yet.
+		this.queue = {};
+
+		// Each session will use this timeout value.
+		this.timeout = timeout;
+
+		// Max sessions in total
+		this.maxSessions = maxSessions;
+
+		// Max empty sessions in total
+		this.maxEmptySessions = maxEmptySessions;
+
+		this._emptySessionCount = 0;
+		this._sessionCount = 0;
+
+		// We don't support push streams by default.
+		this.settings = {
+			enablePush: false,
+			initialWindowSize: 1024 * 1024 * 32 // 32MB, see https://github.com/nodejs/node/issues/38426
+		};
+
+		// Reusing TLS sessions increases performance.
+		this.tlsSessionCache = new QuickLRU({maxSize: maxCachedTlsSessions});
+	}
+
+	get protocol() {
+		return 'https:';
+	}
+
+	normalizeOptions(options) {
+		let normalized = '';
+
+		for (let index = 0; index < nameKeys.length; index++) {
+			const key = nameKeys[index];
+
+			normalized += ':';
+
+			if (options && options[key] !== undefined) {
+				normalized += options[key];
+			}
+		}
+
+		return normalized;
+	}
+
+	_processQueue() {
+		if (this._sessionCount >= this.maxSessions) {
+			this.closeEmptySessions(this.maxSessions - this._sessionCount + 1);
+			return;
+		}
+
+		// eslint-disable-next-line guard-for-in
+		for (const normalizedOptions in this.queue) {
+			// eslint-disable-next-line guard-for-in
+			for (const normalizedOrigin in this.queue[normalizedOptions]) {
+				const item = this.queue[normalizedOptions][normalizedOrigin];
+
+				// The entry function can be run only once.
+				if (!item.completed) {
+					item.completed = true;
+
+					item();
+				}
+			}
+		}
+	}
+
+	_isBetterSession(thisStreamCount, thatStreamCount) {
+		return thisStreamCount > thatStreamCount;
+	}
+
+	_accept(session, listeners, normalizedOrigin, options) {
+		let index = 0;
+
+		while (index < listeners.length && session[kCurrentStreamCount] < session.remoteSettings.maxConcurrentStreams) {
+			// We assume `resolve(...)` calls `request(...)` *directly*,
+			// otherwise the session will get overloaded.
+			listeners[index].resolve(session);
+
+			index++;
+		}
+
+		listeners.splice(0, index);
+
+		if (listeners.length > 0) {
+			this.getSession(normalizedOrigin, options, listeners);
+			listeners.length = 0;
+		}
+	}
+
+	getSession(origin, options, listeners) {
+		return new Promise((resolve, reject) => {
+			if (Array.isArray(listeners) && listeners.length > 0) {
+				listeners = [...listeners];
+
+				// Resolve the current promise ASAP, we're just moving the listeners.
+				// They will be executed at a different time.
+				resolve();
+			} else {
+				listeners = [{resolve, reject}];
+			}
+
+			try {
+				// Parse origin
+				if (typeof origin === 'string') {
+					origin = new URL(origin);
+				} else if (!(origin instanceof URL)) {
+					throw new TypeError('The `origin` argument needs to be a string or an URL object');
+				}
+
+				if (options) {
+					// Validate servername
+					const {servername} = options;
+					const {hostname} = origin;
+					if (servername && hostname !== servername) {
+						throw new Error(`Origin ${hostname} differs from servername ${servername}`);
+					}
+				}
+			} catch (error) {
+				for (let index = 0; index < listeners.length; index++) {
+					listeners[index].reject(error);
+				}
+
+				return;
+			}
+
+			const normalizedOptions = this.normalizeOptions(options);
+			const normalizedOrigin = origin.origin;
+
+			if (normalizedOptions in this.sessions) {
+				const sessions = this.sessions[normalizedOptions];
+
+				let maxConcurrentStreams = -1;
+				let currentStreamsCount = -1;
+				let optimalSession;
+
+				// We could just do this.sessions[normalizedOptions].find(...) but that isn't optimal.
+				// Additionally, we are looking for session which has biggest current pending streams count.
+				//
+				// |------------| |------------| |------------| |------------|
+				// | Session: A | | Session: B | | Session: C | | Session: D |
+				// | Pending: 5 |-| Pending: 8 |-| Pending: 9 |-| Pending: 4 |
+				// | Max:    10 | | Max:    10 | | Max:     9 | | Max:     5 |
+				// |------------| |------------| |------------| |------------|
+				//                     ^
+				//                     |
+				//     pick this one  --
+				//
+				for (let index = 0; index < sessions.length; index++) {
+					const session = sessions[index];
+
+					const sessionMaxConcurrentStreams = session.remoteSettings.maxConcurrentStreams;
+
+					if (sessionMaxConcurrentStreams < maxConcurrentStreams) {
+						break;
+					}
+
+					if (!session[kOriginSet].includes(normalizedOrigin)) {
+						continue;
+					}
+
+					const sessionCurrentStreamsCount = session[kCurrentStreamCount];
+
+					if (
+						sessionCurrentStreamsCount >= sessionMaxConcurrentStreams
+						|| session[kGracefullyClosing]
+						// Unfortunately the `close` event isn't called immediately,
+						// so `session.destroyed` is `true`, but `session.closed` is `false`.
+						|| session.destroyed
+					) {
+						continue;
+					}
+
+					// We only need set this once.
+					if (!optimalSession) {
+						maxConcurrentStreams = sessionMaxConcurrentStreams;
+					}
+
+					// Either get the session which has biggest current stream count or the lowest.
+					if (this._isBetterSession(sessionCurrentStreamsCount, currentStreamsCount)) {
+						optimalSession = session;
+						currentStreamsCount = sessionCurrentStreamsCount;
+					}
+				}
+
+				if (optimalSession) {
+					this._accept(optimalSession, listeners, normalizedOrigin, options);
+					return;
+				}
+			}
+
+			if (normalizedOptions in this.queue) {
+				if (normalizedOrigin in this.queue[normalizedOptions]) {
+					// There's already an item in the queue, just attach ourselves to it.
+					this.queue[normalizedOptions][normalizedOrigin].listeners.push(...listeners);
+					return;
+				}
+			} else {
+				this.queue[normalizedOptions] = {
+					[kLength]: 0
+				};
+			}
+
+			// The entry must be removed from the queue IMMEDIATELY when:
+			// 1. the session connects successfully,
+			// 2. an error occurs.
+			const removeFromQueue = () => {
+				// Our entry can be replaced. We cannot remove the new one.
+				if (normalizedOptions in this.queue && this.queue[normalizedOptions][normalizedOrigin] === entry) {
+					delete this.queue[normalizedOptions][normalizedOrigin];
+
+					if (--this.queue[normalizedOptions][kLength] === 0) {
+						delete this.queue[normalizedOptions];
+					}
+				}
+			};
+
+			// The main logic is here
+			const entry = async () => {
+				this._sessionCount++;
+
+				const name = `${normalizedOrigin}:${normalizedOptions}`;
+				let receivedSettings = false;
+				let socket;
+
+				try {
+					const computedOptions = {...options};
+
+					if (computedOptions.settings === undefined) {
+						computedOptions.settings = this.settings;
+					}
+
+					if (computedOptions.session === undefined) {
+						computedOptions.session = this.tlsSessionCache.get(name);
+					}
+
+					const createConnection = computedOptions.createConnection || this.createConnection;
+
+					// A hacky workaround to enable async `createConnection`
+					socket = await createConnection.call(this, origin, computedOptions);
+					computedOptions.createConnection = () => socket;
+
+					const session = http2.connect(origin, computedOptions);
+					session[kCurrentStreamCount] = 0;
+					session[kGracefullyClosing] = false;
+
+					// Node.js return https://false:443 instead of https://1.1.1.1:443
+					const getOriginSet = () => {
+						const {socket} = session;
+
+						let originSet;
+						if (socket.servername === false) {
+							socket.servername = socket.remoteAddress;
+							originSet = session.originSet;
+							socket.servername = false;
+						} else {
+							originSet = session.originSet;
+						}
+
+						return originSet;
+					};
+
+					const isFree = () => session[kCurrentStreamCount] < session.remoteSettings.maxConcurrentStreams;
+
+					session.socket.once('session', tlsSession => {
+						this.tlsSessionCache.set(name, tlsSession);
+					});
+
+					session.once('error', error => {
+						// Listeners are empty when the session successfully connected.
+						for (let index = 0; index < listeners.length; index++) {
+							listeners[index].reject(error);
+						}
+
+						// The connection got broken, purge the cache.
+						this.tlsSessionCache.delete(name);
+					});
+
+					session.setTimeout(this.timeout, () => {
+						// Terminates all streams owned by this session.
+						session.destroy();
+					});
+
+					session.once('close', () => {
+						this._sessionCount--;
+
+						if (receivedSettings) {
+							// Assumes session `close` is emitted after request `close`
+							this._emptySessionCount--;
+
+							// This cannot be moved to the stream logic,
+							// because there may be a session that hadn't made a single request.
+							const where = this.sessions[normalizedOptions];
+
+							if (where.length === 1) {
+								delete this.sessions[normalizedOptions];
+							} else {
+								where.splice(where.indexOf(session), 1);
+							}
+						} else {
+							// Broken connection
+							removeFromQueue();
+
+							const error = new Error('Session closed without receiving a SETTINGS frame');
+							error.code = 'HTTP2WRAPPER_NOSETTINGS';
+
+							for (let index = 0; index < listeners.length; index++) {
+								listeners[index].reject(error);
+							}
+						}
+
+						// There may be another session awaiting.
+						this._processQueue();
+					});
+
+					// Iterates over the queue and processes listeners.
+					const processListeners = () => {
+						const queue = this.queue[normalizedOptions];
+						if (!queue) {
+							return;
+						}
+
+						const originSet = session[kOriginSet];
+
+						for (let index = 0; index < originSet.length; index++) {
+							const origin = originSet[index];
+
+							if (origin in queue) {
+								const {listeners, completed} = queue[origin];
+
+								let index = 0;
+
+								// Prevents session overloading.
+								while (index < listeners.length && isFree()) {
+									// We assume `resolve(...)` calls `request(...)` *directly*,
+									// otherwise the session will get overloaded.
+									listeners[index].resolve(session);
+
+									index++;
+								}
+
+								queue[origin].listeners.splice(0, index);
+
+								if (queue[origin].listeners.length === 0 && !completed) {
+									delete queue[origin];
+
+									if (--queue[kLength] === 0) {
+										delete this.queue[normalizedOptions];
+										break;
+									}
+								}
+
+								// We're no longer free, no point in continuing.
+								if (!isFree()) {
+									break;
+								}
+							}
+						}
+					};
+
+					// The Origin Set cannot shrink. No need to check if it suddenly became covered by another one.
+					session.on('origin', () => {
+						session[kOriginSet] = getOriginSet() || [];
+						session[kGracefullyClosing] = false;
+						closeSessionIfCovered(this.sessions[normalizedOptions], session);
+
+						if (session[kGracefullyClosing] || !isFree()) {
+							return;
+						}
+
+						processListeners();
+
+						if (!isFree()) {
+							return;
+						}
+
+						// Close covered sessions (if possible).
+						closeCoveredSessions(this.sessions[normalizedOptions], session);
+					});
+
+					session.once('remoteSettings', () => {
+						// The Agent could have been destroyed already.
+						if (entry.destroyed) {
+							const error = new Error('Agent has been destroyed');
+
+							for (let index = 0; index < listeners.length; index++) {
+								listeners[index].reject(error);
+							}
+
+							session.destroy();
+							return;
+						}
+
+						// See https://github.com/nodejs/node/issues/38426
+						if (session.setLocalWindowSize) {
+							session.setLocalWindowSize(1024 * 1024 * 4); // 4 MB
+						}
+
+						session[kOriginSet] = getOriginSet() || [];
+
+						if (session.socket.encrypted) {
+							const mainOrigin = session[kOriginSet][0];
+							if (mainOrigin !== normalizedOrigin) {
+								const error = new Error(`Requested origin ${normalizedOrigin} does not match server ${mainOrigin}`);
+
+								for (let index = 0; index < listeners.length; index++) {
+									listeners[index].reject(error);
+								}
+
+								session.destroy();
+								return;
+							}
+						}
+
+						removeFromQueue();
+
+						{
+							const where = this.sessions;
+
+							if (normalizedOptions in where) {
+								const sessions = where[normalizedOptions];
+								sessions.splice(getSortedIndex(sessions, session, compareSessions), 0, session);
+							} else {
+								where[normalizedOptions] = [session];
+							}
+						}
+
+						receivedSettings = true;
+						this._emptySessionCount++;
+
+						this.emit('session', session);
+						this._accept(session, listeners, normalizedOrigin, options);
+
+						if (session[kCurrentStreamCount] === 0 && this._emptySessionCount > this.maxEmptySessions) {
+							this.closeEmptySessions(this._emptySessionCount - this.maxEmptySessions);
+						}
+
+						// `session.remoteSettings.maxConcurrentStreams` might get increased
+						session.on('remoteSettings', () => {
+							if (!isFree()) {
+								return;
+							}
+
+							processListeners();
+
+							if (!isFree()) {
+								return;
+							}
+
+							// In case the Origin Set changes
+							closeCoveredSessions(this.sessions[normalizedOptions], session);
+						});
+					});
+
+					// Shim `session.request()` in order to catch all streams
+					session[kRequest] = session.request;
+					session.request = (headers, streamOptions) => {
+						if (session[kGracefullyClosing]) {
+							throw new Error('The session is gracefully closing. No new streams are allowed.');
+						}
+
+						const stream = session[kRequest](headers, streamOptions);
+
+						// The process won't exit until the session is closed or all requests are gone.
+						session.ref();
+
+						if (session[kCurrentStreamCount]++ === 0) {
+							this._emptySessionCount--;
+						}
+
+						stream.once('close', () => {
+							if (--session[kCurrentStreamCount] === 0) {
+								this._emptySessionCount++;
+								session.unref();
+
+								if (this._emptySessionCount > this.maxEmptySessions || session[kGracefullyClosing]) {
+									session.close();
+									return;
+								}
+							}
+
+							if (session.destroyed || session.closed) {
+								return;
+							}
+
+							if (isFree() && !closeSessionIfCovered(this.sessions[normalizedOptions], session)) {
+								closeCoveredSessions(this.sessions[normalizedOptions], session);
+								processListeners();
+
+								if (session[kCurrentStreamCount] === 0) {
+									this._processQueue();
+								}
+							}
+						});
+
+						return stream;
+					};
+				} catch (error) {
+					removeFromQueue();
+					this._sessionCount--;
+
+					for (let index = 0; index < listeners.length; index++) {
+						listeners[index].reject(error);
+					}
+				}
+			};
+
+			entry.listeners = listeners;
+			entry.completed = false;
+			entry.destroyed = false;
+
+			this.queue[normalizedOptions][normalizedOrigin] = entry;
+			this.queue[normalizedOptions][kLength]++;
+			this._processQueue();
+		});
+	}
+
+	request(origin, options, headers, streamOptions) {
+		return new Promise((resolve, reject) => {
+			this.getSession(origin, options, [{
+				reject,
+				resolve: session => {
+					try {
+						const stream = session.request(headers, streamOptions);
+
+						// Do not throw before `request(...)` has been awaited
+						delayAsyncDestroy(stream);
+
+						resolve(stream);
+					} catch (error) {
+						reject(error);
+					}
+				}
+			}]);
+		});
+	}
+
+	async createConnection(origin, options) {
+		return Agent.connect(origin, options);
+	}
+
+	static connect(origin, options) {
+		options.ALPNProtocols = ['h2'];
+
+		const port = origin.port || 443;
+		const host = origin.hostname;
+
+		if (typeof options.servername === 'undefined') {
+			options.servername = host;
+		}
+
+		const socket = tls.connect(port, host, options);
+
+		if (options.socket) {
+			socket._peername = {
+				family: undefined,
+				address: undefined,
+				port
+			};
+		}
+
+		return socket;
+	}
+
+	closeEmptySessions(maxCount = Number.POSITIVE_INFINITY) {
+		let closedCount = 0;
+
+		const {sessions} = this;
+
+		// eslint-disable-next-line guard-for-in
+		for (const key in sessions) {
+			const thisSessions = sessions[key];
+
+			for (let index = 0; index < thisSessions.length; index++) {
+				const session = thisSessions[index];
+
+				if (session[kCurrentStreamCount] === 0) {
+					closedCount++;
+					session.close();
+
+					if (closedCount >= maxCount) {
+						return closedCount;
+					}
+				}
+			}
+		}
+
+		return closedCount;
+	}
+
+	destroy(reason) {
+		const {sessions, queue} = this;
+
+		// eslint-disable-next-line guard-for-in
+		for (const key in sessions) {
+			const thisSessions = sessions[key];
+
+			for (let index = 0; index < thisSessions.length; index++) {
+				thisSessions[index].destroy(reason);
+			}
+		}
+
+		// eslint-disable-next-line guard-for-in
+		for (const normalizedOptions in queue) {
+			const entries = queue[normalizedOptions];
+
+			// eslint-disable-next-line guard-for-in
+			for (const normalizedOrigin in entries) {
+				entries[normalizedOrigin].destroyed = true;
+			}
+		}
+
+		// New requests should NOT attach to destroyed sessions
+		this.queue = {};
+		this.tlsSessionCache.clear();
+	}
+
+	get emptySessionCount() {
+		return this._emptySessionCount;
+	}
+
+	get pendingSessionCount() {
+		return this._sessionCount - this._emptySessionCount;
+	}
+
+	get sessionCount() {
+		return this._sessionCount;
+	}
+}
+
+Agent.kCurrentStreamCount = kCurrentStreamCount;
+Agent.kGracefullyClosing = kGracefullyClosing;
+
+module.exports = {
+	Agent,
+	globalAgent: new Agent()
+};