1 files changed, 84 insertions, 0 deletions
diff --git a/remote/JSONHandler.jsm b/remote/JSONHandler.jsm
new file mode 100644
index 0000000000..4a81672893
--- /dev/null
+++ b/remote/JSONHandler.jsm
@@ -0,0 +1,84 @@
+/* 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 = ["JSONHandler"];
+
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
+
+const { HTTP_404, HTTP_505 } = ChromeUtils.import(
+  "chrome://remote/content/server/HTTPD.jsm"
+);
+const { Log } = ChromeUtils.import("chrome://remote/content/Log.jsm");
+const { Protocol } = ChromeUtils.import("chrome://remote/content/Protocol.jsm");
+const { RemoteAgentError } = ChromeUtils.import(
+  "chrome://remote/content/Error.jsm"
+);
+
+class JSONHandler {
+  constructor(agent) {
+    this.agent = agent;
+    this.routes = {
+      "/json/version": this.getVersion.bind(this),
+      "/json/protocol": this.getProtocol.bind(this),
+      "/json/list": this.getTargetList.bind(this),
+    };
+  }
+
+  getVersion() {
+    const mainProcessTarget = this.agent.targets.getMainProcessTarget();
+
+    const { userAgent } = Cc[
+      "@mozilla.org/network/protocol;1?name=http"
+    ].getService(Ci.nsIHttpProtocolHandler);
+
+    return {
+      Browser: `${Services.appinfo.name}/${Services.appinfo.version}`,
+      "Protocol-Version": "1.0",
+      "User-Agent": userAgent,
+      "V8-Version": "1.0",
+      "WebKit-Version": "1.0",
+      webSocketDebuggerUrl: mainProcessTarget.toJSON().webSocketDebuggerUrl,
+    };
+  }
+
+  getProtocol() {
+    return Protocol.Description;
+  }
+
+  getTargetList() {
+    return [...this.agent.targets];
+  }
+
+  // nsIHttpRequestHandler
+
+  handle(request, response) {
+    if (request.method != "GET") {
+      throw HTTP_404;
+    }
+
+    if (!(request.path in this.routes)) {
+      throw HTTP_404;
+    }
+
+    try {
+      const body = this.routes[request.path]();
+      const payload = JSON.stringify(body, null, Log.verbose ? "\t" : null);
+
+      response.setStatusLine(request.httpVersion, 200, "OK");
+      response.setHeader("Content-Type", "application/json");
+      response.write(payload);
+    } catch (e) {
+      new RemoteAgentError(e).notify();
+      throw HTTP_505;
+    }
+  }
+
+  // XPCOM
+
+  get QueryInterface() {
+    return ChromeUtils.generateQI(["nsIHttpRequestHandler"]);
+  }
+}