Implemented authentication process

2 files changed, 337 insertions, 2 deletions

diff --git a/src/de/danoeh/antennapod/activity/gpoddernet/GpodnetAuthenticationActivity.java b/src/de/danoeh/antennapod/activity/gpoddernet/GpodnetAuthenticationActivity.java
new file mode 100644
index 000000000..081ef5cf0
--- /dev/null
+++ b/src/de/danoeh/antennapod/activity/gpoddernet/GpodnetAuthenticationActivity.java
@@ -0,0 +1,329 @@
+package de.danoeh.antennapod.activity.gpoddernet;
+
+import android.content.Context;
+import android.content.Intent;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.support.v7.app.ActionBarActivity;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.*;
+import de.danoeh.antennapod.AppConfig;
+import de.danoeh.antennapod.R;
+import de.danoeh.antennapod.activity.MainActivity;
+import de.danoeh.antennapod.gpoddernet.GpodnetService;
+import de.danoeh.antennapod.gpoddernet.GpodnetServiceException;
+import de.danoeh.antennapod.gpoddernet.model.GpodnetDevice;
+import de.danoeh.antennapod.preferences.GpodnetPreferences;
+import de.danoeh.antennapod.preferences.UserPreferences;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicReference;
+
+/**
+ * Guides the user through the authentication process
+ * Step 1: Request username and password from user
+ * Step 2: Choose device from a list of available devices or create a new one
+ * Step 3: Choose from a list of actions
+ */
+public class GpodnetAuthenticationActivity extends ActionBarActivity {
+    private static final String TAG = "GpodnetAuthenticationActivity";
+
+    private ViewFlipper viewFlipper;
+
+    private static final int STEP_DEFAULT = -1;
+    private static final int STEP_LOGIN = 0;
+    private static final int STEP_DEVICE = 1;
+    private static final int STEP_FINISH = 2;
+
+    private int currentStep = -1;
+
+    private GpodnetService service;
+    private volatile String username;
+    private volatile String password;
+    private volatile GpodnetDevice selectedDevice;
+
+    View[] views;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setTheme(UserPreferences.getTheme());
+
+        setContentView(R.layout.gpodnetauth_activity);
+        service = new GpodnetService();
+
+        viewFlipper = (ViewFlipper) findViewById(R.id.viewflipper);
+        LayoutInflater inflater = (LayoutInflater)
+                getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+        views = new View[]{
+                inflater.inflate(R.layout.gpodnetauth_credentials, null),
+                inflater.inflate(R.layout.gpodnetauth_device, null),
+                inflater.inflate(R.layout.gpodnetauth_finish, null)
+        };
+        for (View view : views) {
+            viewFlipper.addView(view);
+        }
+        advance();
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        if (service != null) {
+            service.shutdown();
+        }
+    }
+
+    private void setupLoginView(View view) {
+        final EditText username = (EditText) view.findViewById(R.id.etxtUsername);
+        final EditText password = (EditText) view.findViewById(R.id.etxtPassword);
+        final Button login = (Button) view.findViewById(R.id.butLogin);
+        final TextView txtvError = (TextView) view.findViewById(R.id.txtvError);
+        final ProgressBar progressBar = (ProgressBar) view.findViewById(R.id.progBarLogin);
+
+        login.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+
+                final String usernameStr = username.getText().toString();
+                final String passwordStr = password.getText().toString();
+
+                if (AppConfig.DEBUG) Log.d(TAG, "Checking login credentials");
+                new AsyncTask<GpodnetService, Void, Void>() {
+
+                    volatile Exception exception;
+
+                    @Override
+                    protected void onPreExecute() {
+                        super.onPreExecute();
+                        login.setEnabled(false);
+                        progressBar.setVisibility(View.VISIBLE);
+                        txtvError.setVisibility(View.GONE);
+
+                    }
+
+                    @Override
+                    protected void onPostExecute(Void aVoid) {
+                        super.onPostExecute(aVoid);
+                        login.setEnabled(true);
+                        progressBar.setVisibility(View.GONE);
+
+                        if (exception == null) {
+                            advance();
+                        } else {
+                            txtvError.setText(exception.getMessage());
+                            txtvError.setVisibility(View.VISIBLE);
+                        }
+                    }
+
+                    @Override
+                    protected Void doInBackground(GpodnetService... params) {
+                        try {
+                            params[0].authenticate(usernameStr, passwordStr);
+                            GpodnetAuthenticationActivity.this.username = usernameStr;
+                            GpodnetAuthenticationActivity.this.password = passwordStr;
+                        } catch (GpodnetServiceException e) {
+                            e.printStackTrace();
+                            exception = e;
+                        }
+                        return null;
+                    }
+                }.execute(service);
+            }
+        });
+    }
+
+    private void setupDeviceView(View view) {
+        final EditText deviceID = (EditText) view.findViewById(R.id.etxtDeviceID);
+        final EditText caption = (EditText) view.findViewById(R.id.etxtCaption);
+        final Button createNewDevice = (Button) view.findViewById(R.id.butCreateNewDevice);
+        final Button chooseDevice = (Button) view.findViewById(R.id.butChooseExistingDevice);
+        final TextView txtvError = (TextView) view.findViewById(R.id.txtvError);
+        final ProgressBar progBarCreateDevice = (ProgressBar) view.findViewById(R.id.progbarCreateDevice);
+        final Spinner spinnerDevices = (Spinner) view.findViewById(R.id.spinnerChooseDevice);
+
+
+        // load device list
+        final AtomicReference<List<GpodnetDevice>> devices = new AtomicReference<List<GpodnetDevice>>();
+        new AsyncTask<GpodnetService, Void, List<GpodnetDevice>>() {
+
+            private volatile Exception exception;
+
+            @Override
+            protected void onPreExecute() {
+                super.onPreExecute();
+                chooseDevice.setEnabled(false);
+                spinnerDevices.setEnabled(false);
+                createNewDevice.setEnabled(false);
+            }
+
+            @Override
+            protected void onPostExecute(List<GpodnetDevice> gpodnetDevices) {
+                super.onPostExecute(gpodnetDevices);
+                if (gpodnetDevices != null) {
+                    List<String> deviceNames = new ArrayList<String>();
+                    for (GpodnetDevice device : gpodnetDevices) {
+                        deviceNames.add(device.getId());
+                    }
+                    spinnerDevices.setAdapter(new ArrayAdapter<String>(GpodnetAuthenticationActivity.this,
+                            android.R.layout.simple_spinner_dropdown_item, deviceNames));
+                    spinnerDevices.setEnabled(true);
+                    if (!deviceNames.isEmpty()) {
+                        chooseDevice.setEnabled(true);
+                    }
+                    devices.set(gpodnetDevices);
+                    createNewDevice.setEnabled(true);
+                }
+            }
+
+            @Override
+            protected List<GpodnetDevice> doInBackground(GpodnetService... params) {
+                try {
+                    return params[0].getDevices(username);
+                } catch (GpodnetServiceException e) {
+                    e.printStackTrace();
+                    exception = e;
+                    return null;
+                }
+            }
+        }.execute(service);
+
+
+        createNewDevice.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                if (checkDeviceIDText(deviceID, txtvError, devices.get())) {
+                    final String deviceStr = deviceID.getText().toString();
+                    final String captionStr = caption.getText().toString();
+
+                    new AsyncTask<GpodnetService, Void, GpodnetDevice>() {
+
+                        private volatile Exception exception;
+
+                        @Override
+                        protected void onPreExecute() {
+                            super.onPreExecute();
+                            createNewDevice.setEnabled(false);
+                            chooseDevice.setEnabled(false);
+                            progBarCreateDevice.setVisibility(View.VISIBLE);
+                            txtvError.setVisibility(View.GONE);
+                        }
+
+                        @Override
+                        protected void onPostExecute(GpodnetDevice result) {
+                            super.onPostExecute(result);
+                            createNewDevice.setEnabled(true);
+                            chooseDevice.setEnabled(true);
+                            progBarCreateDevice.setVisibility(View.GONE);
+                            if (exception == null) {
+                                selectedDevice = result;
+                                advance();
+                            } else {
+                                txtvError.setText(exception.getMessage());
+                                txtvError.setVisibility(View.VISIBLE);
+                            }
+                        }
+
+                        @Override
+                        protected GpodnetDevice doInBackground(GpodnetService... params) {
+                            try {
+                                params[0].configureDevice(username, deviceStr, captionStr, GpodnetDevice.DeviceType.MOBILE);
+                                return new GpodnetDevice(deviceStr, captionStr, GpodnetDevice.DeviceType.MOBILE.toString(), 0);
+                            } catch (GpodnetServiceException e) {
+                                e.printStackTrace();
+                                exception = e;
+                            }
+                            return null;
+                        }
+                    }.execute(service);
+                }
+            }
+        });
+
+        chooseDevice.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                final int position = spinnerDevices.getSelectedItemPosition();
+                selectedDevice = devices.get().get(position);
+                advance();
+            }
+        });
+    }
+
+    private boolean checkDeviceIDText(EditText deviceID, TextView txtvError, List<GpodnetDevice> devices) {
+        String text = deviceID.getText().toString();
+        if (text.length() == 0) {
+            txtvError.setText(R.string.gpodnetauth_device_errorEmpty);
+            txtvError.setVisibility(View.VISIBLE);
+            return false;
+        } else {
+            if (devices != null) {
+                for (GpodnetDevice device : devices) {
+                    if (device.getId().equals(text)) {
+                        txtvError.setText(R.string.gpodnetauth_device_errorAlreadyUsed);
+                        txtvError.setVisibility(View.VISIBLE);
+                        return false;
+                    }
+                }
+                txtvError.setVisibility(View.GONE);
+                return true;
+            }
+            return true;
+        }
+
+    }
+
+    private void setupFinishView(View view) {
+        final Button sync = (Button) view.findViewById(R.id.butSyncNow);
+        final Button back = (Button) view.findViewById(R.id.butGoMainscreen);
+
+        back.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Intent intent = new Intent(GpodnetAuthenticationActivity.this, MainActivity.class);
+                intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
+                startActivity(intent);
+
+            }
+        });
+    }
+
+    private void writeLoginCredentials() {
+        if (AppConfig.DEBUG) Log.d(TAG, "Writing login credentials");
+        GpodnetPreferences.setUsername(username);
+        GpodnetPreferences.setPassword(password);
+        GpodnetPreferences.setDeviceID(selectedDevice.getId());
+    }
+
+    private void advance() {
+        if (currentStep < STEP_FINISH) {
+
+            View view = views[currentStep + 1];
+            if (currentStep == STEP_DEFAULT) {
+                setupLoginView(view);
+            } else if (currentStep == STEP_LOGIN) {
+                if (username == null || password == null) {
+                    throw new IllegalStateException("Username and password must not be null here");
+                } else {
+                    setupDeviceView(view);
+                }
+            } else if (currentStep == STEP_DEVICE) {
+                if (selectedDevice == null) {
+                    throw new IllegalStateException("Device must not be null here");
+                } else {
+                    writeLoginCredentials();
+                    setupFinishView(view);
+                }
+            }
+            if (currentStep != STEP_DEFAULT) {
+                viewFlipper.showNext();
+            }
+            currentStep++;
+        } else {
+            finish();
+        }
+    }
+}
diff --git a/src/de/danoeh/antennapod/gpoddernet/GpodnetService.java b/src/de/danoeh/antennapod/gpoddernet/GpodnetService.java
index 01efd0a4f..11d7a8517 100644
--- a/src/de/danoeh/antennapod/gpoddernet/GpodnetService.java
+++ b/src/de/danoeh/antennapod/gpoddernet/GpodnetService.java
@@ -453,10 +453,16 @@ public class GpodnetService {
     }
 
     /**
-     * Shuts down the GpodnetService's HTTP client.
+     * Shuts down the GpodnetService's HTTP client. The service will be shut down in a separate thread to avoid
+     * NetworkOnMainThreadExceptions.
      */
     public void shutdown() {
-        httpClient.getConnectionManager().shutdown();
+        new Thread() {
+            @Override
+            public void run() {
+                httpClient.getConnectionManager().shutdown();
+            }
+        }.start();
     }
 
     private String executeRequest(HttpRequestBase request)