1 files changed, 43 insertions, 0 deletions
diff --git a/includes/external/addressbook/node_modules/resolve-alpn/index.js b/includes/external/addressbook/node_modules/resolve-alpn/index.js
new file mode 100644
index 0000000..2d6c043
--- /dev/null
+++ b/includes/external/addressbook/node_modules/resolve-alpn/index.js
@@ -0,0 +1,43 @@
+'use strict';
+const tls = require('tls');
+
+module.exports = (options = {}, connect = tls.connect) => new Promise((resolve, reject) => {
+	let timeout = false;
+
+	let socket;
+
+	const callback = async () => {
+		await socketPromise;
+
+		socket.off('timeout', onTimeout);
+		socket.off('error', reject);
+
+		if (options.resolveSocket) {
+			resolve({alpnProtocol: socket.alpnProtocol, socket, timeout});
+
+			if (timeout) {
+				await Promise.resolve();
+				socket.emit('timeout');
+			}
+		} else {
+			socket.destroy();
+			resolve({alpnProtocol: socket.alpnProtocol, timeout});
+		}
+	};
+
+	const onTimeout = async () => {
+		timeout = true;
+		callback();
+	};
+
+	const socketPromise = (async () => {
+		try {
+			socket = await connect(options, callback);
+
+			socket.on('error', reject);
+			socket.once('timeout', onTimeout);
+		} catch (error) {
+			reject(error);
+		}
+	})();
+});