1 files changed, 192 insertions, 0 deletions
diff --git a/mobile/android/chrome/content/aboutHealthReport.js b/mobile/android/chrome/content/aboutHealthReport.js
new file mode 100644
index 000000000..070eb821d
--- /dev/null
+++ b/mobile/android/chrome/content/aboutHealthReport.js
@@ -0,0 +1,192 @@
+// -*- Mode: js2; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; -*-
+/* 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 { classes: Cc, interfaces: Ci, utils: Cu } = Components;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/Messaging.jsm");
+Cu.import("resource://gre/modules/SharedPreferences.jsm");
+
+// Name of Android SharedPreference controlling whether to upload
+// health reports.
+const PREF_UPLOAD_ENABLED = "android.not_a_preference.healthreport.uploadEnabled";
+
+// Name of Gecko Pref specifying report content location.
+const PREF_REPORTURL = "datareporting.healthreport.about.reportUrl";
+
+// Monotonically increasing wrapper API version number.
+const WRAPPER_VERSION = 1;
+
+const EVENT_HEALTH_REQUEST = "HealthReport:Request";
+const EVENT_HEALTH_RESPONSE = "HealthReport:Response";
+
+// about:healthreport prefs are stored in Firefox's default Android
+// SharedPreferences.
+var sharedPrefs = SharedPreferences.forApp();
+
+var healthReportWrapper = {
+  init: function () {
+    let iframe = document.getElementById("remote-report");
+    iframe.addEventListener("load", healthReportWrapper.initRemotePage, false);
+    let report = this._getReportURI();
+    iframe.src = report.spec;
+    console.log("AboutHealthReport: loading content from " + report.spec);
+
+    sharedPrefs.addObserver(PREF_UPLOAD_ENABLED, this, false);
+    Services.obs.addObserver(this, EVENT_HEALTH_RESPONSE, false);
+  },
+
+  observe: function (subject, topic, data) {
+    if (topic == PREF_UPLOAD_ENABLED) {
+      this.updatePrefState();
+    } else if (topic == EVENT_HEALTH_RESPONSE) {
+      this.updatePayload(data);
+    }
+  },
+
+  uninit: function () {
+    sharedPrefs.removeObserver(PREF_UPLOAD_ENABLED, this);
+    Services.obs.removeObserver(this, EVENT_HEALTH_RESPONSE);
+  },
+
+  _getReportURI: function () {
+    let url = Services.urlFormatter.formatURLPref(PREF_REPORTURL);
+    // This handles URLs that already have query parameters.
+    let uri = Services.io.newURI(url, null, null).QueryInterface(Ci.nsIURL);
+    uri.query += ((uri.query != "") ? "&v=" : "v=") + WRAPPER_VERSION;
+    return uri;
+  },
+
+  onOptIn: function () {
+    console.log("AboutHealthReport: page sent opt-in command.");
+    sharedPrefs.setBoolPref(PREF_UPLOAD_ENABLED, true);
+    this.updatePrefState();
+  },
+
+  onOptOut: function () {
+    console.log("AboutHealthReport: page sent opt-out command.");
+    sharedPrefs.setBoolPref(PREF_UPLOAD_ENABLED, false);
+    this.updatePrefState();
+  },
+
+  updatePrefState: function () {
+    console.log("AboutHealthReport: sending pref state to page.");
+    try {
+      let prefs = {
+        enabled: sharedPrefs.getBoolPref(PREF_UPLOAD_ENABLED),
+      };
+      this.injectData("prefs", prefs);
+    } catch (e) {
+      this.reportFailure(this.ERROR_PREFS_FAILED);
+    }
+  },
+
+  refreshPayload: function () {
+    console.log("AboutHealthReport: page requested fresh payload.");
+    Messaging.sendRequest({
+      type: EVENT_HEALTH_REQUEST,
+    });
+  },
+
+  updatePayload: function (data) {
+    healthReportWrapper.injectData("payload", data);
+    // Data is supposed to be a string, so the length should be
+    // defined.  Just in case, we do this after injecting the data.
+    console.log("AboutHealthReport: sending payload to page " +
+         "(" + typeof(data) + " of length " + data.length + ").");
+  },
+
+  injectData: function (type, content) {
+    let report = this._getReportURI();
+
+    // file: URIs can't be used for targetOrigin, so we use "*" for
+    // this special case.  In all other cases, pass in the URL to the
+    // report so we properly restrict the message dispatch.
+    let reportUrl = (report.scheme == "file") ? "*" : report.spec;
+
+    let data = {
+      type: type,
+      content: content,
+    };
+
+    let iframe = document.getElementById("remote-report");
+    iframe.contentWindow.postMessage(data, reportUrl);
+  },
+
+  showSettings: function () {
+    console.log("AboutHealthReport: showing settings.");
+    Messaging.sendRequest({
+      type: "Settings:Show",
+      resource: "preferences_vendor",
+    });
+  },
+
+  launchUpdater: function () {
+    console.log("AboutHealthReport: launching updater.");
+    Messaging.sendRequest({
+      type: "Updater:Launch",
+    });
+  },
+
+  handleRemoteCommand: function (evt) {
+    switch (evt.detail.command) {
+      case "DisableDataSubmission":
+        this.onOptOut();
+        break;
+      case "EnableDataSubmission":
+        this.onOptIn();
+        break;
+      case "RequestCurrentPrefs":
+        this.updatePrefState();
+        break;
+      case "RequestCurrentPayload":
+        this.refreshPayload();
+        break;
+      case "ShowSettings":
+        this.showSettings();
+        break;
+      case "LaunchUpdater":
+        this.launchUpdater();
+        break;
+      default:
+        Cu.reportError("Unexpected remote command received: " + evt.detail.command +
+                       ". Ignoring command.");
+        break;
+    }
+  },
+
+  initRemotePage: function () {
+    let iframe = document.getElementById("remote-report").contentDocument;
+    iframe.addEventListener("RemoteHealthReportCommand",
+                            function onCommand(e) {healthReportWrapper.handleRemoteCommand(e);},
+                            false);
+    healthReportWrapper.injectData("begin", null);
+  },
+
+  // error handling
+  ERROR_INIT_FAILED:    1,
+  ERROR_PAYLOAD_FAILED: 2,
+  ERROR_PREFS_FAILED:   3,
+
+  reportFailure: function (error) {
+    let details = {
+      errorType: error,
+    };
+    healthReportWrapper.injectData("error", details);
+  },
+
+  handleInitFailure: function () {
+    healthReportWrapper.reportFailure(healthReportWrapper.ERROR_INIT_FAILED);
+  },
+
+  handlePayloadFailure: function () {
+    healthReportWrapper.reportFailure(healthReportWrapper.ERROR_PAYLOAD_FAILED);
+  },
+};
+
+window.addEventListener("load", healthReportWrapper.init.bind(healthReportWrapper), false);
+window.addEventListener("unload", healthReportWrapper.uninit.bind(healthReportWrapper), false);