From 8ddc6a656d913a6b1874e83aa6946665684d5a8e Mon Sep 17 00:00:00 2001
From: Peter Serwylo <peter@serwylo.com>
Date: Mon, 27 Jul 2015 17:22:54 +1000
Subject: [PATCH] Failed attempt at fixing bluetooth timeout error.

Kept getting a message in the Bluetooth _client_, which said the
socket timed out or received an invalid response or something. Most
people seem to believe that it is due to a bug in the Bluetooth stack
on Android 4.2.1 and suggest using reflection to access a method that
actually works as intented. I couldn't get it to work correctly though.
Kept the code here because this whole branch is a WIP, and we need
to figure out how to make Bluetooth work one way or another.
---
 .../fdroid/net/bluetooth/BluetoothClient.java | 37 +++++++++++++++++--
 1 file changed, 33 insertions(+), 4 deletions(-)

diff --git a/F-Droid/src/org/fdroid/fdroid/net/bluetooth/BluetoothClient.java b/F-Droid/src/org/fdroid/fdroid/net/bluetooth/BluetoothClient.java
index 21308b0f2..b488f552e 100644
--- a/F-Droid/src/org/fdroid/fdroid/net/bluetooth/BluetoothClient.java
+++ b/F-Droid/src/org/fdroid/fdroid/net/bluetooth/BluetoothClient.java
@@ -3,8 +3,11 @@ package org.fdroid.fdroid.net.bluetooth;
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
 import android.bluetooth.BluetoothSocket;
+import android.util.Log;
 
 import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 
 public class BluetoothClient {
 
@@ -22,10 +25,36 @@ public class BluetoothClient {
     }
 
     public BluetoothConnection openConnection() throws IOException {
-        BluetoothSocket socket = device.createInsecureRfcommSocketToServiceRecord(BluetoothConstants.fdroidUuid());
-        BluetoothConnection connection = new BluetoothConnection(socket);
-        connection.open();
-        return connection;
+        BluetoothSocket socket = null;
+        try {
+            socket = device.createInsecureRfcommSocketToServiceRecord(BluetoothConstants.fdroidUuid());
+            BluetoothConnection connection = new BluetoothConnection(socket);
+            connection.open();
+            return connection;
+        } catch (IOException e1) {
+            Log.e(TAG, "There was an error while establishing Bluetooth connection. Falling back to using reflection...");
+            Class<?> clazz = socket.getRemoteDevice().getClass();
+            Class<?>[] paramTypes = new Class<?>[]{Integer.TYPE};
+
+            Method method;
+            try {
+                method = clazz.getMethod("createInsecureRfcommSocket", paramTypes);
+                Object[] params = new Object[]{1};
+                BluetoothSocket sockFallback = (BluetoothSocket) method.invoke(socket.getRemoteDevice(), params);
+                BluetoothConnection connection = new BluetoothConnection(sockFallback);
+                connection.open();
+                return connection;
+            } catch (NoSuchMethodException e) {
+                throw e1;
+            } catch (IllegalAccessException e) {
+                throw e1;
+            } catch (InvocationTargetException e) {
+                throw e1;
+            }
+
+            // Don't catch exceptions this time, let it bubble up as we did our best but don't
+            // have anythign else to offer in terms of resolving the problem right now.
+        }
     }
 
 }