From 8e250e0b5d427229abf654944da171960a094738 Mon Sep 17 00:00:00 2001
From: vanitasvitae <vanitasvitae@riseup.net>
Date: Wed, 11 May 2016 02:06:21 +0200
Subject: Fixed 'Orbot appears not to be running' (#1792)

---
 OpenKeychain/src/main/AndroidManifest.xml          |   6 +
 .../keychain/util/Preferences.java                 |   3 +
 .../keychain/util/orbot/OrbotHelper.java           |  10 +-
 .../keychain/util/orbot/OrbotStatusReceiver.java   |  78 +++++++++++
 .../keychain/util/orbot/TorServiceUtils.java       | 156 ---------------------
 5 files changed, 94 insertions(+), 159 deletions(-)
 create mode 100644 OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/orbot/OrbotStatusReceiver.java
 delete mode 100644 OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/orbot/TorServiceUtils.java

diff --git a/OpenKeychain/src/main/AndroidManifest.xml b/OpenKeychain/src/main/AndroidManifest.xml
index bead69c58..0ab1e6aff 100644
--- a/OpenKeychain/src/main/AndroidManifest.xml
+++ b/OpenKeychain/src/main/AndroidManifest.xml
@@ -104,6 +104,12 @@
                 <action android:name="android.net.conn.CONNECTIVITY_CHANGE"/>
             </intent-filter>
         </receiver>
+        <!-- broadcast receiver for Orbots status -->
+        <receiver android:name=".util.orbot.OrbotStatusReceiver">
+            <intent-filter>
+                <action android:name="org.torproject.android.intent.action.STATUS"/>
+            </intent-filter>
+        </receiver>
         <!-- singleTop for NFC dispatch, see SecurityTokenOperationActivity -->
         <activity
             android:name=".ui.MainActivity"
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/Preferences.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/Preferences.java
index 5f53845d8..2abd53f62 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/Preferences.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/Preferences.java
@@ -34,6 +34,7 @@ import org.sufficientlysecure.keychain.Constants.Pref;
 import org.sufficientlysecure.keychain.KeychainApplication;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.service.KeyserverSyncAdapterService;
+import org.sufficientlysecure.keychain.util.orbot.OrbotStatusReceiver;
 
 import java.io.Serializable;
 import java.net.Proxy;
@@ -270,6 +271,8 @@ public class Preferences {
         boolean useNormalProxy = getUseNormalProxy();
 
         if (useTor) {
+            //TODO: Replace Constants.Orbot.PROXY_PORT with OrbotStatusReceiver.getProxyPortHttp()
+            //TODO: in order to always have the actual port Orbot is offering?
             return new ProxyPrefs(true, false, Constants.Orbot.PROXY_HOST, Constants.Orbot.PROXY_PORT,
                     Constants.Orbot.PROXY_TYPE);
         } else if (useNormalProxy) {
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/orbot/OrbotHelper.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/orbot/OrbotHelper.java
index d85ad9128..b2809d576 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/orbot/OrbotHelper.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/orbot/OrbotHelper.java
@@ -150,10 +150,14 @@ public class OrbotHelper {
         // only static utility methods, do not instantiate
     }
 
+    /**
+     * Initialize the OrbotStatusReceiver (if not already happened) and check, whether Orbot is
+     * running or not.
+     * @param context context
+     * @return if Orbot is running
+     */
     public static boolean isOrbotRunning(Context context) {
-        int procId = TorServiceUtils.findProcessId(context);
-
-        return (procId != -1);
+        return OrbotStatusReceiver.getInstance().isTorRunning(context);
     }
 
     public static boolean isOrbotInstalled(Context context) {
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/orbot/OrbotStatusReceiver.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/orbot/OrbotStatusReceiver.java
new file mode 100644
index 000000000..743fbdf16
--- /dev/null
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/orbot/OrbotStatusReceiver.java
@@ -0,0 +1,78 @@
+package org.sufficientlysecure.keychain.util.orbot;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+
+import org.sufficientlysecure.keychain.util.Log;
+
+/**
+ * Created by vanitas on 11.05.16.
+ * BroadcastReceiver that receives Orbots status
+ */
+public class OrbotStatusReceiver extends BroadcastReceiver {
+
+    private static final String TAG = "OrbStatRec";
+
+    //TODO: These two Strings are missing in older versions of NetCipher.
+    //TODO: Once they are present in OrbotHelper (not ProxyHelper) point to OrbotHelpers Strings instead.
+    public final static String EXTRA_PROXY_PORT_HTTP = "org.torproject.android.intent.extra.HTTP_PROXY_PORT";
+    public final static String EXTRA_PROXY_PORT_SOCKS = "org.torproject.android.intent.extra.SOCKS_PROXY_PORT";
+
+    //Variables representing Orbots status
+    private boolean torRunning;
+    private int proxy_port_http;
+    private int proxy_port_socks;
+
+    private static OrbotStatusReceiver instance;
+
+    public OrbotStatusReceiver() {
+        instance = this;
+    }
+
+    public static OrbotStatusReceiver getInstance() {
+        if(instance == null) instance = new OrbotStatusReceiver();
+        return instance;
+    }
+
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        if (OrbotHelper.ACTION_STATUS.equals(intent.getAction())) {
+            Log.i(TAG, context.getPackageName() + " received intent : " + intent.getAction() + " " + intent.getPackage());
+            String status = intent.getStringExtra(OrbotHelper.EXTRA_STATUS) + " (" + intent.getStringExtra(OrbotHelper.EXTRA_PACKAGE_NAME) + ")";
+            this.torRunning = (intent.getStringExtra(OrbotHelper.EXTRA_STATUS).equals(OrbotHelper.STATUS_ON));
+
+            Log.d(TAG, "Orbot status: "+status);
+            if(torRunning){
+                Bundle extras = intent.getExtras();
+
+                if (extras.containsKey(EXTRA_PROXY_PORT_HTTP)) {
+                    this.proxy_port_http = extras.getInt(EXTRA_PROXY_PORT_HTTP, -1);
+                    Log.i(TAG, "Http proxy set to "+proxy_port_http);
+                }
+
+                if (extras.containsKey(EXTRA_PROXY_PORT_SOCKS)) {
+                    this.proxy_port_socks = extras.getInt(EXTRA_PROXY_PORT_SOCKS, -1);
+                    Log.i(TAG, "Socks proxy set to "+proxy_port_socks);
+                }
+            }
+        }
+    }
+
+    public boolean isTorRunning(Context context) {
+        OrbotHelper.requestStartTor(context);
+        return this.torRunning;
+    }
+
+    public int getProxyPortHttp(Context context) {
+        OrbotHelper.requestStartTor(context);
+        return this.proxy_port_http;
+    }
+
+    public int getProxyPortSocks(Context context) {
+        OrbotHelper.requestStartTor(context);
+        return this.proxy_port_socks;
+    }
+}
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/orbot/TorServiceUtils.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/orbot/TorServiceUtils.java
deleted file mode 100644
index 2638f8cd5..000000000
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/orbot/TorServiceUtils.java
+++ /dev/null
@@ -1,156 +0,0 @@
-/* This is the license for Orlib, a free software project to
-        provide anonymity on the Internet from a Google Android smartphone.
-
-        For more information about Orlib, see https://guardianproject.info/
-
-        If you got this file as a part of a larger bundle, there may be other
-        license terms that you should be aware of.
-        ===============================================================================
-        Orlib is distributed under this license (aka the 3-clause BSD license)
-
-        Copyright (c) 2009-2010, Nathan Freitas, The Guardian Project
-
-        Redistribution and use in source and binary forms, with or without
-        modification, are permitted provided that the following conditions are
-        met:
-
-        * Redistributions of source code must retain the above copyright
-        notice, this list of conditions and the following disclaimer.
-
-        * Redistributions in binary form must reproduce the above
-        copyright notice, this list of conditions and the following disclaimer
-        in the documentation and/or other materials provided with the
-        distribution.
-
-        * Neither the names of the copyright owners nor the names of its
-        contributors may be used to endorse or promote products derived from
-        this software without specific prior written permission.
-
-        THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-        "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-        LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-        A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-        OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-        SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-        LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-        DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-        THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-        (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-        OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-        *****
-        Orlib contains a binary distribution of the JSocks library:
-        http://code.google.com/p/jsocks-mirror/
-        which is licensed under the GNU Lesser General Public License:
-        http://www.gnu.org/licenses/lgpl.html
-
-        *****
-*/
-
-package org.sufficientlysecure.keychain.util.orbot;
-
-import android.content.Context;
-
-import org.sufficientlysecure.keychain.util.Log;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.InputStreamReader;
-import java.net.URLEncoder;
-import java.util.StringTokenizer;
-
-/**
- * This class is taken from the NetCipher library: https://github.com/guardianproject/NetCipher/
- */
-public class TorServiceUtils {
-
-    private final static String TAG = "TorUtils";
-
-    public final static String SHELL_CMD_PS = "ps";
-    public final static String SHELL_CMD_PIDOF = "pidof";
-
-    public static int findProcessId(Context context) {
-        String dataPath = context.getFilesDir().getParentFile().getParentFile().getAbsolutePath();
-        String command = dataPath + "/" + OrbotHelper.ORBOT_PACKAGE_NAME + "/app_bin/tor";
-        int procId = -1;
-
-        try {
-            procId = findProcessIdWithPidOf(command);
-
-            if (procId == -1)
-                procId = findProcessIdWithPS(command);
-        } catch (Exception e) {
-            try {
-                procId = findProcessIdWithPS(command);
-            } catch (Exception e2) {
-                Log.e(TAG, "Unable to get proc id for command: " + URLEncoder.encode(command), e2);
-            }
-        }
-
-        return procId;
-    }
-
-    // use 'pidof' command
-    public static int findProcessIdWithPidOf(String command) throws Exception {
-
-        int procId = -1;
-
-        Runtime r = Runtime.getRuntime();
-
-        Process procPs;
-
-        String baseName = new File(command).getName();
-        // fix contributed my mikos on 2010.12.10
-        procPs = r.exec(new String[]{
-                SHELL_CMD_PIDOF, baseName
-        });
-        // procPs = r.exec(SHELL_CMD_PIDOF);
-
-        BufferedReader reader = new BufferedReader(new InputStreamReader(procPs.getInputStream()));
-        String line;
-
-        while ((line = reader.readLine()) != null) {
-
-            try {
-                // this line should just be the process id
-                procId = Integer.parseInt(line.trim());
-                break;
-            } catch (NumberFormatException e) {
-                Log.e("TorServiceUtils", "unable to parse process pid: " + line, e);
-            }
-        }
-
-        return procId;
-
-    }
-
-    // use 'ps' command
-    public static int findProcessIdWithPS(String command) throws Exception {
-
-        int procId = -1;
-
-        Runtime r = Runtime.getRuntime();
-
-        Process procPs;
-
-        procPs = r.exec(SHELL_CMD_PS);
-
-        BufferedReader reader = new BufferedReader(new InputStreamReader(procPs.getInputStream()));
-        String line;
-
-        while ((line = reader.readLine()) != null) {
-            if (line.contains(' ' + command)) {
-
-                StringTokenizer st = new StringTokenizer(line, " ");
-                st.nextToken(); // proc owner
-
-                procId = Integer.parseInt(st.nextToken().trim());
-
-                break;
-            }
-        }
-
-        return procId;
-
-    }
-}
\ No newline at end of file
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