From a88c2d48c0ac3562fcc957b20a76fca97b93bf32 Mon Sep 17 00:00:00 2001
From: fiaxh <github@lightrise.org>
Date: Tue, 23 Feb 2016 23:57:51 +0100
Subject: [PATCH 1/2] No possibility of multiple invocation of log export

---
 .../java/eu/siacs/conversations/services/ExportLogsService.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/eu/siacs/conversations/services/ExportLogsService.java b/src/main/java/eu/siacs/conversations/services/ExportLogsService.java
index 76983a905..87e65931b 100644
--- a/src/main/java/eu/siacs/conversations/services/ExportLogsService.java
+++ b/src/main/java/eu/siacs/conversations/services/ExportLogsService.java
@@ -45,9 +45,9 @@ public class ExportLogsService extends Service {
 			new Thread(new Runnable() {
 				@Override
 				public void run() {
-					running.set(false);
 					export();
 					stopForeground(true);
+					running.set(false);
 					stopSelf();
 				}
 			}).start();

From e1a2f248afcc9fd884015da78decd5c0c8c83552 Mon Sep 17 00:00:00 2001
From: fiaxh <github@lightrise.org>
Date: Tue, 23 Feb 2016 23:58:42 +0100
Subject: [PATCH 2/2] Request WRITE_EXTERNAL_STORAGE for ExportLogsPreference
 in >= M

---
 .../ui/ExportLogsPreference.java              |  7 +++++
 .../conversations/ui/SettingsActivity.java    | 26 +++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/src/main/java/eu/siacs/conversations/ui/ExportLogsPreference.java b/src/main/java/eu/siacs/conversations/ui/ExportLogsPreference.java
index a4e178bd3..bedb4172d 100644
--- a/src/main/java/eu/siacs/conversations/ui/ExportLogsPreference.java
+++ b/src/main/java/eu/siacs/conversations/ui/ExportLogsPreference.java
@@ -1,7 +1,10 @@
 package eu.siacs.conversations.ui;
 
+import android.Manifest;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.os.Build;
 import android.preference.Preference;
 import android.util.AttributeSet;
 
@@ -22,6 +25,10 @@ public class ExportLogsPreference extends Preference {
     }
 
     protected void onClick() {
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
+				&& getContext().checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
+			return;
+		}
 		final Intent startIntent = new Intent(getContext(), ExportLogsService.class);
 		getContext().startService(startIntent);
 		super.onClick();
diff --git a/src/main/java/eu/siacs/conversations/ui/SettingsActivity.java b/src/main/java/eu/siacs/conversations/ui/SettingsActivity.java
index 07c328b9a..c028d0d69 100644
--- a/src/main/java/eu/siacs/conversations/ui/SettingsActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/SettingsActivity.java
@@ -3,8 +3,10 @@ package eu.siacs.conversations.ui;
 import android.app.AlertDialog;
 import android.app.FragmentManager;
 import android.content.DialogInterface;
+import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+import android.content.pm.PackageManager;
 import android.os.Build;
 import android.os.Bundle;
 import android.preference.ListPreference;
@@ -25,10 +27,13 @@ import de.duenndns.ssl.MemorizingTrustManager;
 import eu.siacs.conversations.Config;
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.services.ExportLogsService;
 import eu.siacs.conversations.xmpp.XmppConnection;
 
 public class SettingsActivity extends XmppActivity implements
 		OnSharedPreferenceChangeListener {
+
+	public static final int REQUEST_WRITE_LOGS = 0xbf8701;
 	private SettingsFragment mSettingsFragment;
 
 	@Override
@@ -130,6 +135,15 @@ public class SettingsActivity extends XmppActivity implements
 				return true;
 			}
 		});
+
+		final Preference exportLogsPreference = mSettingsFragment.findPreference("export_logs");
+		exportLogsPreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+			@Override
+			public boolean onPreferenceClick(Preference preference) {
+				hasStoragePermission(REQUEST_WRITE_LOGS);
+				return true;
+			}
+		});
 	}
 
 	@Override
@@ -179,6 +193,18 @@ public class SettingsActivity extends XmppActivity implements
 
 	}
 
+	@Override
+	public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
+		if (grantResults.length > 0)
+			if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+				if (requestCode == REQUEST_WRITE_LOGS) {
+					getApplicationContext().startService(new Intent(getApplicationContext(), ExportLogsService.class));
+				}
+			} else {
+				Toast.makeText(this, R.string.no_storage_permission, Toast.LENGTH_SHORT).show();
+			}
+	}
+
 	private void displayToast(final String msg) {
 		runOnUiThread(new Runnable() {
 			@Override