@Override
public synchronized void handleMessage(
String event, NativeJSObject message, org.mozilla.gecko.util.EventCallback callback) {
try {
switch (event) {
case MESSAGE_LOAD:
{
if (callback == null) {
throw new IllegalArgumentException("callback must not be null");
}
final String classname = message.getString("classname");
final String filename = message.getString("filename");
final EventDispatcherImpl dispatcher = registerNewInstance(classname, filename);
callback.sendSuccess(dispatcher.guid);
}
break;
case MESSAGE_UNLOAD:
{
if (callback == null) {
throw new IllegalArgumentException("callback must not be null");
}
final String guid = message.getString("guid");
final EventDispatcherImpl dispatcher = mGUIDToDispatcherMap.remove(guid);
if (dispatcher == null) {
Log.w(
LOGTAG,
"Attempting to unload addon with unknown associated dispatcher; ignoring.");
callback.sendSuccess(false);
}
dispatcher.unregisterAllEventListeners();
callback.sendSuccess(true);
}
break;
}
} catch (Exception e) {
Log.e(LOGTAG, "Exception handling message [" + event + "]", e);
if (callback != null) {
callback.sendError("Exception handling message [" + event + "]: " + e.toString());
}
}
}
// This function only works for IPv4
private void getWifiIPAddress(final EventCallback callback) {
final WifiManager mgr =
(WifiManager) GeckoAppShell.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
if (mgr == null) {
callback.sendError("Cannot get WifiManager");
return;
}
final WifiInfo info = mgr.getConnectionInfo();
if (info == null) {
callback.sendError("Cannot get connection info");
return;
}
int ip = info.getIpAddress();
if (ip == 0) {
callback.sendError("Cannot get IPv4 address");
return;
}
callback.sendSuccess(Formatter.formatIpAddress(ip));
}
/**
* Opens a URI without any valid handlers on device. In the best case, a package is specified and
* we can bring the user directly to the application page in an app market. If a package is not
* specified and there is a fallback url in the intent extras, we open that url. If neither is
* present, we alert the user that we were unable to open the link.
*
* @param msg A message with the uri with no handlers as the value for the "uri" key
* @param callback A callback that will be called with success & no params if Java loads a page,
* or with error and the uri to load if Java does not load a page
*/
private void openNoHandler(final NativeJSObject msg, final EventCallback callback) {
final String uri = msg.getString("uri");
if (TextUtils.isEmpty(uri)) {
Log.w(LOGTAG, "Received empty URL - loading about:neterror");
callback.sendError(getUnknownProtocolErrorPageUri(""));
return;
}
final Intent intent;
try {
// TODO (bug 1173626): This will not handle android-app uris on non 5.1 devices.
intent = Intent.parseUri(uri, 0);
} catch (final URISyntaxException e) {
String errorUri;
try {
errorUri = getUnknownProtocolErrorPageUri(URLEncoder.encode(uri, "UTF-8"));
} catch (final UnsupportedEncodingException encodingE) {
errorUri = getUnknownProtocolErrorPageUri("");
}
// Don't log the exception to prevent leaking URIs.
Log.w(LOGTAG, "Unable to parse Intent URI - loading about:neterror");
callback.sendError(errorUri);
return;
}
// For this flow, we follow Chrome's lead:
// https://developer.chrome.com/multidevice/android/intents
if (intent.hasExtra(EXTRA_BROWSER_FALLBACK_URL)) {
final String fallbackUrl = intent.getStringExtra(EXTRA_BROWSER_FALLBACK_URL);
String urlToLoad;
try {
final String anyCaseScheme = new URI(fallbackUrl).getScheme();
final String scheme = (anyCaseScheme == null) ? null : anyCaseScheme.toLowerCase(Locale.US);
if ("http".equals(scheme) || "https".equals(scheme)) {
urlToLoad = fallbackUrl;
} else {
Log.w(LOGTAG, "Fallback URI uses unsupported scheme: " + scheme);
urlToLoad = GENERIC_URI_PREFIX + fallbackUrl;
}
} catch (final URISyntaxException e) {
// Do not include Exception to avoid leaking uris.
Log.w(LOGTAG, "Exception parsing fallback URI");
urlToLoad = MALFORMED_URI_PREFIX + fallbackUrl;
}
callback.sendError(urlToLoad);
} else if (intent.getPackage() != null) {
// Note on alternative flows: we could get the intent package from a component, however, for
// security reasons, components are ignored when opening URIs (bug 1168998) so we should
// ignore it here too.
//
// Our old flow used to prompt the user to search for their app in the market by scheme and
// while this could help the user find a new app, there is not always a correlation in
// scheme to application name and we could end up steering the user wrong (potentially to
// malicious software). Better to leave that one alone.
final String marketUri = MARKET_INTENT_URI_PACKAGE_PREFIX + intent.getPackage();
final Intent marketIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(marketUri));
marketIntent.addCategory(Intent.CATEGORY_BROWSABLE);
marketIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// (Bug 1192436) We don't know if marketIntent matches any Activities (e.g. non-Play
// Store devices). If it doesn't, clicking the link will cause no action to occur.
activity.startActivity(marketIntent);
callback.sendSuccess(null);
} else {
// Don't log the URI to prevent leaking it.
Log.w(LOGTAG, "Unable to open URI, default case - loading about:neterror");
callback.sendError(getUnknownProtocolErrorPageUri(intent.getData().toString()));
}
}