1 files changed, 74 insertions, 0 deletions
diff --git a/remote/targets/Target.jsm b/remote/targets/Target.jsm
new file mode 100644
index 0000000000..b413b4b220
--- /dev/null
+++ b/remote/targets/Target.jsm
@@ -0,0 +1,74 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+var EXPORTED_SYMBOLS = ["Target"];
+
+const { Connection } = ChromeUtils.import(
+  "chrome://remote/content/Connection.jsm"
+);
+const { WebSocketTransport } = ChromeUtils.import(
+  "chrome://remote/content/server/WebSocketTransport.jsm"
+);
+const { WebSocketHandshake } = ChromeUtils.import(
+  "chrome://remote/content/server/WebSocketHandshake.jsm"
+);
+
+const UUIDGen = Cc["@mozilla.org/uuid-generator;1"].getService(
+  Ci.nsIUUIDGenerator
+);
+
+/**
+ * Base class for all the Targets.
+ */
+class Target {
+  /**
+   * @param Targets targets
+   * @param Class sessionClass
+   */
+  constructor(targets, sessionClass) {
+    // Save a reference to Targets instance in order to expose it to:
+    // domains/parent/Target.jsm
+    this.targets = targets;
+
+    // When a new connection is made to this target,
+    // we will instantiate a new session based on this given class.
+    // The session class is specific to each target's kind and is passed
+    // by the inheriting class.
+    this.sessionClass = sessionClass;
+
+    // There can be more than one connection if multiple clients connect to the remote agent.
+    this.connections = new Set();
+    this.id = UUIDGen.generateUUID()
+      .toString()
+      .slice(1, -1);
+  }
+
+  /**
+   * Close all active connections made to this target.
+   */
+  destructor() {
+    for (const conn of this.connections) {
+      conn.close();
+    }
+  }
+
+  // nsIHttpRequestHandler
+
+  async handle(request, response) {
+    const so = await WebSocketHandshake.upgrade(request, response);
+    const transport = new WebSocketTransport(so);
+    const conn = new Connection(transport, response._connection);
+    const session = new this.sessionClass(conn, this);
+    conn.registerSession(session);
+    this.connections.add(conn);
+  }
+
+  // XPCOM
+
+  get QueryInterface() {
+    return ChromeUtils.generateQI(["nsIHttpRequestHandler"]);
+  }
+}