add possibility to export database during update check

2 files changed, 45 insertions, 1 deletions

diff --git a/src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java b/src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java
index f1155b07d..5a7ca7a56 100644
--- a/src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java
+++ b/src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java
@@ -51,7 +51,7 @@ public class DatabaseBackend extends SQLiteOpenHelper {
 
 	private static DatabaseBackend instance = null;
 
-	private static final String DATABASE_NAME = "history";
+	public static final String DATABASE_NAME = "history";
 	private static final int DATABASE_VERSION = 27;
 
 	private static String CREATE_CONTATCS_STATEMENT = "create table "
diff --git a/src/main/java/eu/siacs/conversations/ui/UpdaterActivity.java b/src/main/java/eu/siacs/conversations/ui/UpdaterActivity.java
index a9adfb174..b47b0c1dd 100644
--- a/src/main/java/eu/siacs/conversations/ui/UpdaterActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/UpdaterActivity.java
@@ -27,9 +27,15 @@ import org.json.JSONException;
 import org.json.JSONObject;
 
 import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
 
 import eu.siacs.conversations.Config;
 import eu.siacs.conversations.R;
+import eu.siacs.conversations.persistance.DatabaseBackend;
 import eu.siacs.conversations.services.UpdaterWebService;
 
 public class UpdaterActivity extends Activity {
@@ -94,6 +100,37 @@ public class UpdaterActivity extends Activity {
         }
     }
 
+    private void ExportDatabase() throws IOException {
+
+        // Get hold of the db:
+        InputStream myInput = new
+                FileInputStream(this.getDatabasePath(DatabaseBackend.DATABASE_NAME));
+
+        // Set the output folder on the SDcard
+        File directory = new File(Environment.getExternalStorageDirectory().getAbsolutePath()+"/Pix-Art Messenger/.Database/");
+
+        // Create the folder if it doesn't exist:
+        if (!directory.exists()) {
+            directory.mkdirs();
+        }
+
+        // Set the output file stream up:
+        OutputStream myOutput = new FileOutputStream(directory.getPath() + "/Database.bak");
+
+        // Transfer bytes from the input file to the output file
+        byte[] buffer = new byte[1024];
+        int length;
+        while ((length = myInput.read(buffer)) > 0) {
+            myOutput.write(buffer, 0, length);
+        }
+
+        // Close and clear the streams
+        myOutput.flush();
+        myOutput.close();
+        myInput.close();
+    }
+
+
     @Override
     public void onDestroy() {
         //unregister your receivers
@@ -201,6 +238,13 @@ public class UpdaterActivity extends Activity {
                     reponseObj = new JSONObject(responseMessage);
                     boolean success = reponseObj.getBoolean("success");
                     if (success) {
+                        //start backing up database
+                        try {
+                            ExportDatabase();
+                            Log.d(Config.LOGTAG,"AppUpdater: Database successfully exported");
+                        } catch (IOException e) {
+                            e.printStackTrace();
+                        }
                         //Overall information about the contents of a package
                         //This corresponds to all of the information collected from AndroidManifest.xml.
                         PackageInfo pInfo = null;