Bug 684722 - Invoke geolocation error handlers when xhr fails. r=jdm

dom/src/geolocation/nsGeolocation.cpp

@@ -79,6 +79,7 @@ class nsGeolocationRequest
   void SendLocation(nsIDOMGeoPosition* location);
   bool WantsHighAccuracy() {return mOptions && mOptions->mEnableHighAccuracy;}
   void SetTimeoutTimer();
+  void NotifyErrorAndShutdown(uint16_t);
   nsIPrincipal* GetPrincipal();
 
   ~nsGeolocationRequest();
@@ -366,6 +367,13 @@ NS_IMPL_CYCLE_COLLECTION_3(nsGeolocationRequest, mCallback, mErrorCallback, mLoc
 
 NS_IMETHODIMP
 nsGeolocationRequest::Notify(nsITimer* aTimer)
+{
+  NotifyErrorAndShutdown(nsIDOMGeoPositionError::TIMEOUT);
+  return NS_OK;
+}
+
+void
+nsGeolocationRequest::NotifyErrorAndShutdown(uint16_t aErrorCode)
 {
   MOZ_ASSERT(!mShutdown, "timeout after shutdown");
 
@@ -374,13 +382,11 @@ nsGeolocationRequest::Notify(nsITimer* aTimer)
     mLocator->RemoveRequest(this);
   }
 
-  NotifyError(nsIDOMGeoPositionError::TIMEOUT);
+  NotifyError(aErrorCode);
 
   if (!mShutdown) {
     SetTimeoutTimer();
   }
-
-  return NS_OK;
 }
 
 NS_IMETHODIMP
@@ -1160,13 +1166,13 @@ Geolocation::NotifyError(uint16_t aErrorCode)
   }
 
   for (uint32_t i = mPendingCallbacks.Length(); i > 0; i--) {
-    mPendingCallbacks[i-1]->NotifyError(aErrorCode);
-    RemoveRequest(mPendingCallbacks[i-1]);
+    mPendingCallbacks[i-1]->NotifyErrorAndShutdown(aErrorCode);
+    //NotifyErrorAndShutdown() removes the request from the array
   }
 
   // notify everyone that is watching
   for (uint32_t i = 0; i < mWatchingCallbacks.Length(); i++) {
-    mWatchingCallbacks[i]->NotifyError(aErrorCode);
+    mWatchingCallbacks[i]->NotifyErrorAndShutdown(aErrorCode);
   }
 
   return NS_OK;

dom/system/NetworkGeolocationProvider.js

@@ -170,22 +170,30 @@ WifiGeoPositionProvider.prototype = {
 
     // This is a background load
   
-    xhr.open("POST", url, true);
+    try {
+        xhr.open("POST", url, true);
+    } catch (e) {
+       triggerError();
+       return;
+    }
     xhr.setRequestHeader("Content-Type", "application/json; charset=UTF-8");
     xhr.responseType = "json";
     xhr.mozBackgroundRequest = true;
     xhr.channel.loadFlags = Ci.nsIChannel.LOAD_ANONYMOUS;
     xhr.onerror = function() {
         LOG("onerror: " + xhr);
+        triggerError();
     };
 
     xhr.onload = function() {  
         LOG("gls returned status: " + xhr.status + " --> " +  JSON.stringify(xhr.response));
         if (xhr.channel instanceof Ci.nsIHttpChannel && xhr.status != 200) {
+            triggerError();
             return;
         }
 
         if (!xhr.response || !xhr.response.location) {
+            triggerError();
             return;
         }
 
@@ -218,4 +226,8 @@ WifiGeoPositionProvider.prototype = {
   },
 };
 
+function triggerError() {
+    Cc["@mozilla.org/geolocation/service;1"].getService(Ci.nsIGeolocationUpdate)
+        .notifyError(Ci.nsIDOMGeoPositionError.POSITION_UNAVAILABLE);
+}
 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([WifiGeoPositionProvider]);

dom/tests/mochitest/geolocation/geolocation_common.js

@@ -51,6 +51,11 @@ function delay_geolocationProvider(delay, callback)
   SpecialPowers.pushPrefEnv({"set": [["geo.wifi.uri", "http://mochi.test:8888/tests/dom/tests/mochitest/geolocation/network_geolocation.sjs?delay=" + delay]]}, callback);
 }
 
+function send404_geolocationProvider(callback)
+{
+  SpecialPowers.pushPrefEnv({"set": [["geo.wifi.uri", "http://mochi.test:8888/tests/dom/tests/mochitest/geolocation/network_geolocation.sjs?action=send404"]]}, callback);
+}
+
 function check_geolocation(location) {
 
   ok(location, "Check to see if this location is non-null");

dom/tests/mochitest/geolocation/mochitest.ini

@@ -12,6 +12,7 @@ support-files =
 [test_cancelWatch.html]
 [test_clearWatch.html]
 [test_clearWatch_invalid.html]
+[test_errorcheck.html]
 [test_geolocation_is_undefined_when_pref_is_off.html]
 [test_handlerSpinsEventLoop.html]
 [test_manyCurrentConcurrent.html]

dom/tests/mochitest/geolocation/network_geolocation.sjs

@@ -37,6 +37,7 @@ function handleRequest(request, response)
   var params = parseQueryString(request.queryString);
 
   if (params.action == "stop-responding") {
+      response.processAsync();
       return;
   }
 
@@ -64,6 +65,11 @@ function handleRequest(request, response)
   if ('delay' in params) {
     delay = params.delay;
   }
+  if (params.action === "send404") {
+    response.setStatusLine("1.0", 404, "Not Found");
+    response.finish();
+    return;
+  }
   timer = Components.classes["@mozilla.org/timer;1"].createInstance(Components.interfaces.nsITimer);
   timer.initWithCallback(function() {
     response.write(position);

dom/tests/mochitest/geolocation/test_errorcheck.html

@@ -0,0 +1,50 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=684722
+-->
+<head>
+  <title>Test for ErrorChecking </title>
+  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="geolocation_common.js"></script>
+
+<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=684722">Mozilla Bug 684722</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+
+SimpleTest.waitForExplicitFinish();
+
+resume_geolocationProvider(function() {
+  force_prompt(true, test1);
+});
+
+function test1() {
+    send404_geolocationProvider(test2);
+}
+
+function errorCallback(error) {
+    is(error.code, 
+        SpecialPowers.Ci.nsIDOMGeoPositionError.POSITION_UNAVAILABLE, "Geolocation error handler fired");
+    SimpleTest.finish();
+}
+
+function successCallback(position) {
+    ok(0,"Success callback called, which shouldn't be done");
+    SimpleTest.finish();
+}
+
+function test2() {
+  navigator.geolocation.getCurrentPosition(successCallback, errorCallback);
+}
+</script>
+</pre>
+</body>
+</html>
+