Support for device management, limits, and contact requests.

// FREEBIE

AndroidManifest.xml

@@ -192,6 +192,10 @@
     <activity android:name=".RegistrationProgressActivity"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
+     <activity android:name=".DeviceListActivity"
+               android:label="@string/AndroidManifest_manage_paired_devices"
+               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
     <activity android:name=".LogSubmitActivity"
               android:label="@string/AndroidManifest__log_submit"
               android:windowSoftInputMode="stateHidden"

build.gradle

@@ -67,7 +67,7 @@ dependencies {
     compile 'org.whispersystems:jobmanager:0.11.0'
     compile 'org.whispersystems:libpastelog:1.0.6'
     compile 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'
-    compile 'org.whispersystems:textsecure-android:1.6.0-RC13'
+    compile 'org.whispersystems:textsecure-android:1.6.0-RC19'
 
     compile 'com.squareup.leakcanary:leakcanary-android:1.3.1'
 

res/layout/device_list_fragment.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:orientation="vertical"
+              android:paddingLeft="16dip"
+              android:paddingRight="16dip">
+
+    <LinearLayout android:id="@+id/progress_container"
+                  android:layout_width="fill_parent"
+                  android:layout_height="fill_parent"
+                  android:gravity="center"
+                  android:orientation="vertical"
+                  android:visibility="gone" >
+
+        <ProgressBar android:id="@+id/progress"
+                     android:indeterminate="true"
+                     android:layout_width="wrap_content"
+                     android:layout_height="wrap_content" >
+        </ProgressBar>
+    </LinearLayout>
+
+    <TextView android:id="@+id/empty"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:layout_gravity="center|center_vertical"
+              android:gravity="center|center_vertical"
+              android:textSize="20sp"
+              android:visibility="gone"
+              android:text="@string/device_list_fragment__no_devices_paired"/>
+
+    <ListView android:id="@id/android:list"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:layout_weight="1"
+              android:drawSelectorOnTop="false"/>
+
+
+</LinearLayout>

res/layout/device_list_item_view.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<org.thoughtcrime.securesms.DeviceListItem xmlns:android="http://schemas.android.com/apk/res/android"
+                                           android:orientation="vertical"
+                                           android:layout_width="match_parent"
+                                           android:layout_height="match_parent"
+                                           android:layout_marginLeft="16dp"
+                                           android:layout_marginRight="16dp">
+
+    <TextView android:id="@+id/name"
+              android:textAppearance="?android:attr/textAppearanceMedium"
+              android:textColor="?attr/conversation_list_item_contact_color"
+              android:singleLine="true"
+              android:ellipsize="marquee"
+              android:layout_marginTop="8dp"
+              android:layout_width="wrap_content"
+              android:layout_height="wrap_content" />
+
+    <TextView android:id="@+id/created"
+              android:layout_width="match_parent"
+              android:layout_height="wrap_content"
+              android:textAppearance="?android:attr/textAppearanceSmall"
+              android:textColor="?attr/conversation_list_item_subject_color"
+              android:fontFamily="sans-serif-light"  />
+
+    <TextView android:id="@+id/active"
+              android:layout_width="match_parent"
+              android:layout_height="wrap_content"
+              android:textAppearance="?android:attr/textAppearanceSmall"
+              android:textColor="?attr/conversation_list_item_subject_color"
+              android:fontFamily="sans-serif-light"
+              android:layout_marginBottom="8dp" />
+
+</org.thoughtcrime.securesms.DeviceListItem>

res/values/attrs.xml

@@ -122,6 +122,7 @@
     <attr name="pref_ic_app_protection" format="reference" />
     <attr name="pref_ic_appearance" format="reference" />
     <attr name="pref_ic_storage" format="reference" />
+    <attr name="pref_ic_devices" format="reference" />
     <attr name="pref_ic_advanced" format="reference" />
 
     <attr name="app_protect_timeout_picker_color" format="reference"/>

res/values/strings.xml

@@ -166,6 +166,20 @@
     <string name="DateUtils_now">Now</string>
     <string name="DateUtils_minutes_ago">%d min</string>
 
+    <!-- DeviceListActivity -->
+    <string name="DeviceListActivity_disconnect_s">Disconnect \'%s\'?</string>
+    <string name="DeviceListActivity_by_disconnecting_this_device_it_will_no_longer_be_able_to_send_or_receive">By disconnecting this device, it will no longer be able to send or receive messages.</string>
+    <string name="DeviceListActivity_network_connection_failed">Network connection failed...</string>
+    <string name="DeviceListActivity_try_again">Try again</string>
+    <string name="DeviceListActivity_disconnecting_device">Disconnecting device..</string>
+    <string name="DeviceListActivity_disconnecting_device_no_ellipse">Disconnecting device</string>
+    <string name="DeviceListActivity_network_failed">Network failed!</string>
+
+    <!-- DeviceListItem -->
+    <string name="DeviceListItem_unnamed_device">Unnamed device</string>
+    <string name="DeviceListItem_created_s">Created %s</string>
+    <string name="DeviceListItem_last_active_s">Last active %s</string>
+
     <!-- ShareActivity -->
     <string name="ShareActivity_share_with">Share with</string>
 
@@ -283,6 +297,7 @@
     <string name="DeviceProvisioningActivity_content_progress_no_device">No device found.</string>
     <string name="DeviceProvisioningActivity_content_progress_network_error">Network error.</string>
     <string name="DeviceProvisioningActivity_content_progress_key_error">Invalid QR code.</string>
+    <string name="DeviceProvisioningActivity_sorry_you_have_too_many_devices_registered_already">Sorry, you have too many devices registered already, try removing some...</string>
 
     <!-- PassphrasePromptActivity -->
     <string name="PassphrasePromptActivity_enter_passphrase">Enter passphrase</string>
@@ -532,6 +547,9 @@
     <string name="country_selection_fragment__loading_countries">Loading countries...</string>
     <string name="country_selection_fragment__search">Search</string>
 
+    <!-- device_list_fragment -->
+    <string name="device_list_fragment__no_devices_paired">No devices paired...</string>
+
     <!-- log_submit_activity -->
     <string name="log_submit_activity__log_fetch_failed">Could not grab logs from your device. You can still use ADB to get debug logs instead.</string>
     <string name="log_submit_activity__thanks">Thanks for your help!</string>
@@ -715,6 +733,7 @@
     <string name="AndroidManifest__media_overview">All images</string>
     <string name="AndroidManifest__media_overview_named">All images with %1$s</string>
     <string name="AndroidManifest__message_details">Message Details</string>
+    <string name="AndroidManifest_manage_paired_devices">Manage paired devices</string>
 
     <!-- arrays.xml -->
     <string name="arrays__import_export">Import / export</string>
@@ -959,6 +978,7 @@
     <string name="transport_selection_list_item__transport_icon">Transport icon</string>
 
 
+
     <!-- EOF -->
 
 </resources>

res/values/themes.xml

@@ -173,6 +173,7 @@
         <item name="pref_ic_app_protection">@drawable/ic_app_protection_black</item>
         <item name="pref_ic_appearance">@drawable/ic_brightness_6_black</item>
         <item name="pref_ic_storage">@drawable/ic_delete_black</item>
+        <item name="pref_ic_devices">@drawable/ic_devices_black_48dp</item>
         <item name="pref_ic_advanced">@drawable/ic_advanced_black</item>
 
         <item name="app_protect_timeout_picker_color">@style/BetterPickersDialogFragment.Light</item>
@@ -297,6 +298,7 @@
         <item name="pref_ic_app_protection">@drawable/ic_app_protection_gray</item>
         <item name="pref_ic_appearance">@drawable/ic_brightness_6_gray</item>
         <item name="pref_ic_storage">@drawable/ic_delete_gray</item>
+        <item name="pref_ic_devices">@drawable/ic_devices_grey600_48dp</item>
         <item name="pref_ic_advanced">@drawable/ic_advanced_gray</item>
 
         <item name="app_protect_timeout_picker_color">@style/BetterPickersDialogFragment</item>

res/xml/preferences.xml

@@ -21,6 +21,12 @@
                 android:title="@string/preferences__delete_old_messages"
                 android:icon="?pref_ic_storage"/>
 
+    <Preference android:key="preference_category_devices"
+                android:title="Devices"
+                android:icon="?pref_ic_devices">
+
+    </Preference>
+
     <Preference android:key="preference_category_advanced"
                 android:title="@string/preferences__advanced"
                 android:icon="?pref_ic_advanced"/>

src/org/thoughtcrime/securesms/ApplicationPreferencesActivity.java

@@ -55,6 +55,7 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
   private static final String PREFERENCE_CATEGORY_APP_PROTECTION = "preference_category_app_protection";
   private static final String PREFERENCE_CATEGORY_APPEARANCE     = "preference_category_appearance";
   private static final String PREFERENCE_CATEGORY_STORAGE        = "preference_category_storage";
+  private static final String PREFERENCE_CATEGORY_DEVICES        = "preference_category_devices";
   private static final String PREFERENCE_CATEGORY_ADVANCED       = "preference_category_advanced";
 
   private final DynamicTheme    dynamicTheme    = new DynamicTheme();
@@ -131,6 +132,8 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
         .setOnPreferenceClickListener(new CategoryClickListener(masterSecret, PREFERENCE_CATEGORY_APPEARANCE));
       this.findPreference(PREFERENCE_CATEGORY_STORAGE)
         .setOnPreferenceClickListener(new CategoryClickListener(masterSecret, PREFERENCE_CATEGORY_STORAGE));
+      this.findPreference(PREFERENCE_CATEGORY_DEVICES)
+        .setOnPreferenceClickListener(new CategoryClickListener(masterSecret, PREFERENCE_CATEGORY_DEVICES));
       this.findPreference(PREFERENCE_CATEGORY_ADVANCED)
         .setOnPreferenceClickListener(new CategoryClickListener(masterSecret, PREFERENCE_CATEGORY_ADVANCED));
     }
@@ -166,7 +169,7 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
 
       @Override
       public boolean onPreferenceClick(Preference preference) {
-        Fragment fragment;
+        Fragment fragment = null;
 
         switch (category) {
         case PREFERENCE_CATEGORY_SMS_MMS:
@@ -184,6 +187,10 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
         case PREFERENCE_CATEGORY_STORAGE:
           fragment = new StoragePreferenceFragment();
           break;
+        case PREFERENCE_CATEGORY_DEVICES:
+          Intent intent = new Intent(getActivity(), DeviceListActivity.class);
+          startActivity(intent);
+          break;
         case PREFERENCE_CATEGORY_ADVANCED:
           fragment = new AdvancedPreferenceFragment();
           break;
@@ -191,15 +198,17 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
           throw new AssertionError();
         }
 
-        Bundle args = new Bundle();
-        args.putParcelable("master_secret", masterSecret);
-        fragment.setArguments(args);
+        if (fragment != null) {
+          Bundle args = new Bundle();
+          args.putParcelable("master_secret", masterSecret);
+          fragment.setArguments(args);
 
-        FragmentManager     fragmentManager     = getActivity().getSupportFragmentManager();
-        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
-        fragmentTransaction.replace(android.R.id.content, fragment);
-        fragmentTransaction.addToBackStack(null);
-        fragmentTransaction.commit();
+          FragmentManager     fragmentManager     = getActivity().getSupportFragmentManager();
+          FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
+          fragmentTransaction.replace(android.R.id.content, fragment);
+          fragmentTransaction.addToBackStack(null);
+          fragmentTransaction.commit();
+        }
 
         return true;
       }

src/org/thoughtcrime/securesms/DeviceListActivity.java

@@ -0,0 +1,211 @@
+package org.thoughtcrime.securesms;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.v4.app.ListFragment;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.Loader;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+import android.widget.Toast;
+
+import com.afollestad.materialdialogs.AlertDialogWrapper;
+
+import org.thoughtcrime.securesms.crypto.MasterSecret;
+import org.thoughtcrime.securesms.database.loaders.DeviceListLoader;
+import org.thoughtcrime.securesms.dependencies.InjectableType;
+import org.thoughtcrime.securesms.util.DynamicLanguage;
+import org.thoughtcrime.securesms.util.DynamicTheme;
+import org.thoughtcrime.securesms.util.ProgressDialogAsyncTask;
+import org.whispersystems.textsecure.api.TextSecureAccountManager;
+import org.whispersystems.textsecure.api.messages.multidevice.DeviceInfo;
+
+import java.io.IOException;
+import java.util.List;
+
+import javax.inject.Inject;
+
+public class DeviceListActivity extends PassphraseRequiredActionBarActivity {
+
+
+  private final DynamicTheme    dynamicTheme    = new DynamicTheme();
+  private final DynamicLanguage dynamicLanguage = new DynamicLanguage();
+
+  @Override
+  public void onPreCreate() {
+    dynamicTheme.onCreate(this);
+    dynamicLanguage.onCreate(this);
+  }
+
+
+  @Override
+  public void onCreate(Bundle bundle, @NonNull MasterSecret masterSecret) {
+    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+    initFragment(android.R.id.content, new DeviceListFragment(), masterSecret);
+  }
+
+  @Override
+  public void onResume() {
+    super.onResume();
+    dynamicTheme.onResume(this);
+    dynamicLanguage.onResume(this);
+  }
+
+  @Override
+  public boolean onOptionsItemSelected(MenuItem item) {
+    switch (item.getItemId()) {
+      case android.R.id.home: finish(); return true;
+    }
+
+    return false;
+  }
+
+  public static class DeviceListFragment extends ListFragment
+      implements LoaderManager.LoaderCallbacks<List<DeviceInfo>>, ListView.OnItemClickListener, InjectableType
+  {
+
+    private static final String TAG = DeviceListFragment.class.getSimpleName();
+
+    @Inject TextSecureAccountManager accountManager;
+
+    private View empty;
+    private View progressContainer;
+
+    @Override
+    public void onAttach(Activity activity) {
+      super.onAttach(activity);
+      ApplicationContext.getInstance(activity).injectDependencies(this);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
+      View view = inflater.inflate(R.layout.device_list_fragment, container, false);
+
+      this.empty             = view.findViewById(R.id.empty);
+      this.progressContainer = view.findViewById(R.id.progress_container);
+
+      return view;
+    }
+
+    @Override
+    public void onActivityCreated(Bundle bundle) {
+      super.onActivityCreated(bundle);
+      getLoaderManager().initLoader(0, null, this).forceLoad();
+      getListView().setOnItemClickListener(this);
+    }
+
+    @Override
+    public Loader<List<DeviceInfo>> onCreateLoader(int id, Bundle args) {
+      empty.setVisibility(View.GONE);
+      progressContainer.setVisibility(View.VISIBLE);
+
+      return new DeviceListLoader(getActivity(), accountManager);
+    }
+
+    @Override
+    public void onLoadFinished(Loader<List<DeviceInfo>> loader, List<DeviceInfo> data) {
+      progressContainer.setVisibility(View.GONE);
+
+      if (data == null) {
+        handleLoaderFailed();
+        return;
+      }
+
+      setListAdapter(new DeviceListAdapter(getActivity(), R.layout.device_list_item_view, data));
+
+      if (data.isEmpty()) empty.setVisibility(View.VISIBLE);
+      else                empty.setVisibility(View.GONE);
+    }
+
+    @Override
+    public void onLoaderReset(Loader<List<DeviceInfo>> loader) {
+      setListAdapter(null);
+    }
+
+    @Override
+    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+      final String deviceName = ((DeviceListItem)view).getDeviceName();
+      final long   deviceId   = ((DeviceListItem)view).getDeviceId();
+
+      AlertDialogWrapper.Builder builder = new AlertDialogWrapper.Builder(getActivity());
+      builder.setTitle(getActivity().getString(R.string.DeviceListActivity_disconnect_s, deviceName));
+      builder.setMessage(R.string.DeviceListActivity_by_disconnecting_this_device_it_will_no_longer_be_able_to_send_or_receive);
+      builder.setNegativeButton(android.R.string.cancel, null);
+      builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+        @Override
+        public void onClick(DialogInterface dialog, int which) {
+          handleDisconnectDevice(deviceId);
+        }
+      });
+      builder.show();
+    }
+
+    private void handleLoaderFailed() {
+      AlertDialogWrapper.Builder builder = new AlertDialogWrapper.Builder(getActivity());
+      builder.setMessage(R.string.DeviceListActivity_network_connection_failed);
+      builder.setPositiveButton(R.string.DeviceListActivity_try_again,
+                                new DialogInterface.OnClickListener() {
+        @Override
+        public void onClick(DialogInterface dialog, int which) {
+          getLoaderManager().initLoader(0, null, DeviceListFragment.this);
+        }
+      });
+      builder.show();
+    }
+
+    private void handleDisconnectDevice(final long deviceId) {
+      new ProgressDialogAsyncTask<Void, Void, Void>(getActivity(),
+                                                    R.string.DeviceListActivity_disconnecting_device,
+                                                    R.string.DeviceListActivity_disconnecting_device_no_ellipse)
+      {
+        @Override
+        protected Void doInBackground(Void... params) {
+          try {
+            accountManager.removeDevice(deviceId);
+          } catch (IOException e) {
+            Log.w(TAG, e);
+            Toast.makeText(getActivity(), R.string.DeviceListActivity_network_failed, Toast.LENGTH_LONG).show();
+          }
+          return null;
+        }
+
+        @Override
+        protected void onPostExecute(Void result) {
+          super.onPostExecute(result);
+          getLoaderManager().restartLoader(0, null, DeviceListFragment.this);
+        }
+      }.execute();
+    }
+
+    private static class DeviceListAdapter extends ArrayAdapter<DeviceInfo> {
+
+      private final int resource;
+
+      public DeviceListAdapter(Context context, int resource, List<DeviceInfo> objects) {
+        super(context, resource, objects);
+        this.resource = resource;
+      }
+
+      @Override
+      public View getView(int position, View convertView, ViewGroup parent) {
+        if (convertView == null) {
+          convertView = ((Activity)getContext()).getLayoutInflater().inflate(resource, parent, false);
+        }
+
+        ((DeviceListItem)convertView).set(getItem(position));
+
+        return convertView;
+      }
+    }
+  }
+
+}

src/org/thoughtcrime/securesms/DeviceListItem.java

@@ -0,0 +1,62 @@
+package org.thoughtcrime.securesms;
+
+import android.content.Context;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import org.thoughtcrime.securesms.util.DateUtils;
+import org.whispersystems.textsecure.api.messages.multidevice.DeviceInfo;
+
+import java.util.Locale;
+
+public class DeviceListItem extends LinearLayout {
+
+  private long     deviceId;
+  private TextView name;
+  private TextView created;
+  private TextView lastActive;
+
+  public DeviceListItem(Context context) {
+    super(context);
+  }
+
+  public DeviceListItem(Context context, AttributeSet attrs) {
+    super(context, attrs);
+  }
+
+  @Override
+  public void onFinishInflate() {
+    super.onFinishInflate();
+    this.name       = (TextView) findViewById(R.id.name);
+    this.created    = (TextView) findViewById(R.id.created);
+    this.lastActive = (TextView) findViewById(R.id.active);
+  }
+
+  public void set(DeviceInfo deviceInfo) {
+    if (TextUtils.isEmpty(deviceInfo.getName())) this.name.setText(R.string.DeviceListItem_unnamed_device);
+    else                                         this.name.setText(deviceInfo.getName());
+
+    this.created.setText(getContext().getString(R.string.DeviceListItem_created_s,
+                                                DateUtils.getExtendedRelativeTimeSpanString(getContext(),
+                                                                                            Locale.getDefault(),
+                                                                                            deviceInfo.getCreated())));
+
+    this.lastActive.setText(getContext().getString(R.string.DeviceListItem_last_active_s,
+                                                   DateUtils.getExtendedRelativeTimeSpanString(getContext(),
+                                                                                               Locale.getDefault(),
+                                                                                               deviceInfo.getLastSeen())));
+
+    this.deviceId = deviceInfo.getId();
+  }
+
+  public long getDeviceId() {
+    return deviceId;
+  }
+
+  public String getDeviceName() {
+    return name.getText().toString();
+  }
+
+}

src/org/thoughtcrime/securesms/DeviceProvisioningActivity.java

@@ -6,13 +6,11 @@ import android.content.DialogInterface.OnDismissListener;
 import android.net.Uri;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
-import android.text.SpannableString;
 import android.text.SpannableStringBuilder;
 import android.util.Log;
 import android.view.Window;
 import android.widget.Toast;
 
-import com.afollestad.materialdialogs.DialogAction;
 import com.afollestad.materialdialogs.MaterialDialog;
 import com.afollestad.materialdialogs.MaterialDialog.Builder;
 import com.afollestad.materialdialogs.MaterialDialog.ButtonCallback;
@@ -28,6 +26,7 @@ import org.whispersystems.libaxolotl.ecc.Curve;
 import org.whispersystems.libaxolotl.ecc.ECPublicKey;
 import org.whispersystems.textsecure.api.TextSecureAccountManager;
 import org.whispersystems.textsecure.api.push.exceptions.NotFoundException;
+import org.whispersystems.textsecure.internal.push.DeviceLimitExceededException;
 
 import java.io.IOException;
 
@@ -94,10 +93,11 @@ public class DeviceProvisioningActivity extends PassphraseRequiredActionBarActiv
                                                      R.string.DeviceProvisioningActivity_content_progress_title,
                                                      R.string.DeviceProvisioningActivity_content_progress_content)
     {
-      private static final int SUCCESS       = 0;
-      private static final int NO_DEVICE     = 1;
-      private static final int NETWORK_ERROR = 2;
-      private static final int KEY_ERROR     = 3;
+      private static final int SUCCESS        = 0;
+      private static final int NO_DEVICE      = 1;
+      private static final int NETWORK_ERROR  = 2;
+      private static final int KEY_ERROR      = 3;
+      private static final int LIMIT_EXCEEDED = 4;
 
       @Override
       protected Integer doInBackground(Void... params) {
@@ -113,9 +113,13 @@ public class DeviceProvisioningActivity extends PassphraseRequiredActionBarActiv
           accountManager.addDevice(ephemeralId, publicKey, identityKeyPair, verificationCode);
           return SUCCESS;
 
+
         } catch (NotFoundException e) {
           Log.w(TAG, e);
           return NO_DEVICE;
+        } catch (DeviceLimitExceededException e) {
+          Log.w(TAG, e);
+          return LIMIT_EXCEEDED;
         } catch (IOException e) {
           Log.w(TAG, e);
           return NETWORK_ERROR;
@@ -144,6 +148,9 @@ public class DeviceProvisioningActivity extends PassphraseRequiredActionBarActiv
           case KEY_ERROR:
             Toast.makeText(context, R.string.DeviceProvisioningActivity_content_progress_key_error, Toast.LENGTH_LONG).show();
             break;
+          case LIMIT_EXCEEDED:
+            Toast.makeText(context, R.string.DeviceProvisioningActivity_sorry_you_have_too_many_devices_registered_already, Toast.LENGTH_LONG).show();
+            break;
         }
         dialog.dismiss();
       }

src/org/thoughtcrime/securesms/database/loaders/DeviceListLoader.java

@@ -0,0 +1,58 @@
+package org.thoughtcrime.securesms.database.loaders;
+
+import android.content.Context;
+import android.support.v4.content.AsyncTaskLoader;
+import android.util.Log;
+
+import org.whispersystems.textsecure.api.TextSecureAccountManager;
+import org.whispersystems.textsecure.api.messages.multidevice.DeviceInfo;
+import org.whispersystems.textsecure.api.push.TextSecureAddress;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.Iterator;
+import java.util.List;
+
+public class DeviceListLoader extends AsyncTaskLoader<List<DeviceInfo>> {
+
+  private static final String TAG = DeviceListLoader.class.getSimpleName();
+
+  private final TextSecureAccountManager accountManager;
+
+  public DeviceListLoader(Context context, TextSecureAccountManager accountManager) {
+    super(context);
+    this.accountManager = accountManager;
+  }
+
+  @Override
+  public List<DeviceInfo> loadInBackground() {
+    try {
+      List<DeviceInfo>     devices  = accountManager.getDevices();
+      Iterator<DeviceInfo> iterator = devices.iterator();
+
+      while (iterator.hasNext()) {
+        if ((iterator.next().getId() == TextSecureAddress.DEFAULT_DEVICE_ID)) {
+          iterator.remove();
+        }
+      }
+
+      Collections.sort(devices, new DeviceInfoComparator());
+
+      return devices;
+    } catch (IOException e) {
+      Log.w(TAG, e);
+      return null;
+    }
+  }
+
+  private static class DeviceInfoComparator implements Comparator<DeviceInfo> {
+
+    @Override
+    public int compare(DeviceInfo lhs, DeviceInfo rhs) {
+      if      (lhs.getCreated() < rhs.getCreated())  return -1;
+      else if (lhs.getCreated() != rhs.getCreated()) return 1;
+      else                                           return 0;
+    }
+  }
+}

src/org/thoughtcrime/securesms/dependencies/TextSecureCommunicationModule.java

@@ -3,6 +3,7 @@ package org.thoughtcrime.securesms.dependencies;
 import android.content.Context;
 
 import org.thoughtcrime.securesms.BuildConfig;
+import org.thoughtcrime.securesms.DeviceListActivity;
 import org.thoughtcrime.securesms.crypto.MasterSecret;
 import org.thoughtcrime.securesms.crypto.storage.TextSecureAxolotlStore;
 import org.thoughtcrime.securesms.jobs.AttachmentDownloadJob;
@@ -12,7 +13,6 @@ import org.thoughtcrime.securesms.jobs.DeliveryReceiptJob;
 import org.thoughtcrime.securesms.jobs.MultiDeviceContactUpdateJob;
 import org.thoughtcrime.securesms.jobs.PushGroupSendJob;
 import org.thoughtcrime.securesms.jobs.PushMediaSendJob;
-import org.thoughtcrime.securesms.jobs.PushContentReceiveJob;
 import org.thoughtcrime.securesms.jobs.PushNotificationReceiveJob;
 import org.thoughtcrime.securesms.jobs.PushTextSendJob;
 import org.thoughtcrime.securesms.jobs.RefreshPreKeysJob;
@@ -39,7 +39,8 @@ import dagger.Provides;
                                      RefreshPreKeysJob.class,
                                      MessageRetrievalService.class,
                                      PushNotificationReceiveJob.class,
-                                     MultiDeviceContactUpdateJob.class})
+                                     MultiDeviceContactUpdateJob.class,
+                                     DeviceListActivity.DeviceListFragment.class})
 public class TextSecureCommunicationModule {
 
   private final Context context;

src/org/thoughtcrime/securesms/jobs/PushDecryptJob.java

@@ -50,6 +50,7 @@ import org.whispersystems.textsecure.api.messages.TextSecureContent;
 import org.whispersystems.textsecure.api.messages.TextSecureEnvelope;
 import org.whispersystems.textsecure.api.messages.TextSecureGroup;
 import org.whispersystems.textsecure.api.messages.TextSecureDataMessage;
+import org.whispersystems.textsecure.api.messages.multidevice.RequestMessage;
 import org.whispersystems.textsecure.api.messages.multidevice.SentTranscriptMessage;
 import org.whispersystems.textsecure.api.messages.multidevice.TextSecureSyncMessage;
 import org.whispersystems.textsecure.api.push.TextSecureAddress;
@@ -126,7 +127,8 @@ public class PushDecryptJob extends MasterSecretJob {
       } else if (content.getSyncMessage().isPresent()) {
         TextSecureSyncMessage syncMessage = content.getSyncMessage().get();
 
-        if (syncMessage.getSent().isPresent()) handleSynchronizeSentMessage(masterSecret, syncMessage.getSent().get(), smsMessageId);
+        if      (syncMessage.getSent().isPresent())    handleSynchronizeSentMessage(masterSecret, syncMessage.getSent().get(), smsMessageId);
+        else if (syncMessage.getRequest().isPresent()) handleSynchronizeRequestMessage(masterSecret, syncMessage.getRequest().get());
       }
 
       if (envelope.isPreKeyWhisperMessage()) {
@@ -198,6 +200,14 @@ public class PushDecryptJob extends MasterSecretJob {
     }
   }
 
+  private void handleSynchronizeRequestMessage(MasterSecret masterSecret, RequestMessage message) {
+    if (message.isContactsRequest()) {
+      ApplicationContext.getInstance(context)
+                        .getJobManager()
+                        .add(new MultiDeviceContactUpdateJob(getContext()));
+    }
+  }
+
   private void handleMediaMessage(MasterSecret masterSecret, TextSecureEnvelope envelope,
                                   TextSecureDataMessage message, Optional<Long> smsMessageId)
       throws MmsException