Primitive XMPP connection

.idea/codeStyles/Project.xml

@@ -0,0 +1,29 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <Objective-C-extensions>
+      <file>
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Import" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Macro" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Typedef" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Enum" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Constant" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Global" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Struct" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="FunctionPredecl" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Function" />
+      </file>
+      <class>
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Property" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Synthesize" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InitMethod" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="StaticMethod" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InstanceMethod" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="DeallocMethod" />
+      </class>
+      <extensions>
+        <pair source="cpp" header="h" fileNamingConvention="NONE" />
+        <pair source="c" header="h" fileNamingConvention="NONE" />
+      </extensions>
+    </Objective-C-extensions>
+  </code_scheme>
+</component>

.idea/misc.xml

@@ -24,7 +24,7 @@
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

build.gradle

@@ -8,12 +8,12 @@ buildscript {
     }
 
     ext {
-        smackVersion="4.2.3-SNAPSHOT"
+        smackVersion="4.4.0-alpha2-SNAPSHOT"
     }
 
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.1.3'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Mon Jan 22 17:04:57 CET 2018
+#Wed Aug 01 11:38:19 CEST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip

mobile/build.gradle

@@ -29,18 +29,24 @@ dependencies {
     implementation 'com.android.support:support-emoji:27.0.2'
     implementation 'com.android.support.constraint:constraint-layout:1.0.2'
 
+    // The holy ButterKnife \o/
+    compile 'com.jakewharton:butterknife:8.8.1'
+    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
 
-    testImplementation 'junit:junit:4.12'
+    // External UI
-    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    compile 'de.hdodenhof:circleimageview:2.0.0'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 
+    // Smack
     compile "org.igniterealtime.smack:smack-android-extensions:$smackVersion"
     compile "org.igniterealtime.smack:smack-omemo-signal:$smackVersion"
     compile "org.igniterealtime.smack:smack-tcp:$smackVersion"
     compile "org.igniterealtime.smack:smack-experimental:$smackVersion"
 
-    compile 'com.jakewharton:butterknife:8.8.1'
+    // SQLCipher
-    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
+    compile 'net.zetetic:android-database-sqlcipher:3.5.9@aar'
 
-    compile 'de.hdodenhof:circleimageview:2.0.0'
+    // Test stuff
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
 }

mobile/src/main/AndroidManifest.xml

@@ -34,6 +34,7 @@
             android:resource="@xml/automotive_app_desc" />
 
         <service android:name=".service.MyMessagingService"/>
+        <service android:name=".service.SlamXmppService" />
 
         <receiver android:name=".receiver.MessageReadReceiver">
             <intent-filter>

mobile/src/main/java/de/vanitasvitae/slam/SlamApplication.java

@@ -18,14 +18,16 @@
 package de.vanitasvitae.slam;
 
 import android.app.Application;
+import android.content.Intent;
 
 import de.vanitasvitae.slam.mvp.DummyPresenterFactory;
 import de.vanitasvitae.slam.mvp.PresenterFactory;
+import de.vanitasvitae.slam.service.SlamXmppService;
 
 public class SlamApplication extends Application {
 
     public SlamApplication() {
         super();
-        PresenterFactory.setInstance(new DummyPresenterFactory());
+        PresenterFactory.setInstance(new PresenterFactory());
     }
 }

mobile/src/main/java/de/vanitasvitae/slam/mvp/contracts/BaseContract.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2018 Paul Schaub
+ *
+ * This code is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+ */
+package de.vanitasvitae.slam.mvp.contracts;
+
+/**
+ * Created by Paul Schaub on 24.02.18.
+ */
+public interface BaseContract {
+
+    interface BaseView<T extends BasePresenter> {
+        void setPresenter(T presenter);
+    }
+
+    interface BasePresenter {
+
+    }
+}

mobile/src/main/java/de/vanitasvitae/slam/mvp/contracts/ContactDetailContract.java

@@ -26,7 +26,7 @@ import de.vanitasvitae.slam.xmpp.Resource;
  */
 public interface ContactDetailContract {
 
-    interface View {
+    interface View extends BaseContract.BaseView<Presenter> {
         void setContactAvatar();
         void setNickname(String nickname);
         void setResources(List<Resource> presences);
@@ -34,7 +34,7 @@ public interface ContactDetailContract {
         void addFingerprints(List<?> fingerprints);
     }
 
-    interface Presenter {
+    interface Presenter extends BaseContract.BasePresenter {
         void onAvatarClick();
         void onSharedMediaClick();
         void onAudioCallClick();

mobile/src/main/java/de/vanitasvitae/slam/mvp/contracts/ContactListContract.java

@@ -31,7 +31,7 @@ import de.vanitasvitae.slam.xmpp.Contact;
  */
 public interface ContactListContract {
 
-    interface View {
+    interface View extends BaseContract.BaseView<Presenter> {
         void addContactListItems(List<Contact> contacts);
         void clearContactListItems();
         void onUpdateContactPresence();
@@ -41,7 +41,7 @@ public interface ContactListContract {
         void navigateToContactDetail(BareJid contact);
     }
 
-    interface Presenter {
+    interface Presenter extends BaseContract.BasePresenter {
         void onContactListItemClick();
         void onContactListItemLongClick();
         void addNewContact();

mobile/src/main/java/de/vanitasvitae/slam/mvp/contracts/ConversationContract.java

@@ -30,14 +30,14 @@ import de.vanitasvitae.slam.xmpp.message.AbstractMessage;
  */
 public interface ConversationContract {
 
-    interface View {
+    interface View extends BaseContract.BaseView<Presenter> {
         void addMessageItems(List<AbstractMessage> messages, boolean end);
         void highlightMessageItem();
         void correctMessageItem();
         void navigateToContactProfile();
     }
 
-    interface Presenter {
+    interface Presenter extends BaseContract.BasePresenter {
         void setPeersJid(EntityBareJid jid);
         void onConversationScrolledToTop();
         void onComposingMessageChanged(String composingMessage);

mobile/src/main/java/de/vanitasvitae/slam/mvp/contracts/ConversationListContract.java

@@ -29,13 +29,13 @@ import de.vanitasvitae.slam.xmpp.Conversation;
  */
 public interface ConversationListContract {
 
-    interface View {
+    interface View extends BaseContract.BaseView<Presenter> {
         void populateConversationList(List<Conversation> conversations);
         void navigateToConversation(BareJid contact);
         void navigateToContactDetail(BareJid contact);
     }
 
-    interface Presenter {
+    interface Presenter extends BaseContract.BasePresenter {
         void onConversationClick();
         void onConversationLongClick();
         void load();

mobile/src/main/java/de/vanitasvitae/slam/mvp/contracts/LoginContract.java

@@ -17,13 +17,15 @@
  */
 package de.vanitasvitae.slam.mvp.contracts;
 
+import de.vanitasvitae.slam.service.SlamXmppService;
+
 /**
  * Model-View-Presenter contract of the login screen.
  * Created by Paul Schaub on 01.02.18.
  */
 public interface LoginContract {
 
-    interface View {
+    interface View extends BaseContract.BaseView<Presenter> {
         void showInvalidJidError();
         void hideInvalidJidError();
         void showInvalidPasswordError();
@@ -33,11 +35,15 @@ public interface LoginContract {
         void showProgressIndicator();
         void hideProgressIndicator();
         void navigateToMainActivity();
+        void disableLoginButton();
+        void enableLoginButton();
     }
 
-    interface Presenter {
+    interface Presenter extends BaseContract.BasePresenter {
         void jidChanged(String jid);
         void passwordChanged(String password);
         void loginClicked();
+        void bindService(SlamXmppService service);
+        void unbindService();
     }
 }

mobile/src/main/java/de/vanitasvitae/slam/mvp/contracts/SearchContract.java

@@ -25,7 +25,7 @@ import java.util.List;
  */
 public interface SearchContract {
 
-    interface View {
+    interface View extends BaseContract.BaseView<Presenter> {
         void addSearchResults(List<?> results);
         void clearSearchResults();
         void showLoadingIndicator();
@@ -34,7 +34,7 @@ public interface SearchContract {
         void hideEmptySearchResults();
     }
 
-    interface Presenter {
+    interface Presenter extends BaseContract.BasePresenter {
         void onSearchQueryChanged(String query);
         void onSearchResultClick();
         void onSearchScrolledToBottom();

mobile/src/main/java/de/vanitasvitae/slam/mvp/contracts/message/AbstractMessageContract.java

@@ -17,12 +17,14 @@
  */
 package de.vanitasvitae.slam.mvp.contracts.message;
 
+import de.vanitasvitae.slam.mvp.contracts.BaseContract;
+
 /**
  * Model-View-Presenter contract for an abstract message.
  */
 public interface AbstractMessageContract {
 
-    interface View {
+    interface View extends BaseContract.BaseView<Presenter> {
         void setDirection(Direction direction);
         void setStatusSending();
         void setStatusSendingFailed();
@@ -33,7 +35,7 @@ public interface AbstractMessageContract {
         void displayErrorMessage();
     }
 
-    interface Presenter {
+    interface Presenter extends BaseContract.BasePresenter {
         void onDeleteMessage();
         void onReadMessage();
         void onMessageClick();

mobile/src/main/java/de/vanitasvitae/slam/mvp/presenter/LoginPresenter.java

@@ -17,18 +17,38 @@
  */
 package de.vanitasvitae.slam.mvp.presenter;
 
+import android.content.Context;
+import android.support.v7.app.AppCompatActivity;
+import android.util.Log;
+import android.widget.Toast;
+
+import org.jivesoftware.smack.SmackException;
+import org.jivesoftware.smack.XMPPException;
+import org.jivesoftware.smack.chat2.Chat;
+import org.jivesoftware.smack.chat2.ChatManager;
+import org.jivesoftware.smack.chat2.IncomingChatMessageListener;
+import org.jivesoftware.smack.packet.Message;
 import org.jxmpp.jid.BareJid;
+import org.jxmpp.jid.EntityBareJid;
 import org.jxmpp.jid.impl.JidCreate;
 import org.jxmpp.stringprep.XmppStringprepException;
 
+import java.io.IOException;
+import java.net.UnknownHostException;
+
 import de.vanitasvitae.slam.mvp.contracts.LoginContract;
+import de.vanitasvitae.slam.service.SlamXmppConnection;
+import de.vanitasvitae.slam.service.SlamXmppService;
+import de.vanitasvitae.slam.xmpp.Account;
 
 public class LoginPresenter implements LoginContract.Presenter {
 
+    private static final String TAG = "LoginPresenter";
     private final LoginContract.View view;
 
     private BareJid jid;
     private String password;
+    private SlamXmppService service;
 
     public LoginPresenter(LoginContract.View view) {
         this.view = view;
@@ -39,19 +59,115 @@ public class LoginPresenter implements LoginContract.Presenter {
         try {
             this.jid = JidCreate.entityBareFrom(jid);
             view.hideInvalidJidError();
+
+            if (password != null && !password.isEmpty()) {
+                view.enableLoginButton();
+            }
+
         } catch (XmppStringprepException e) {
             this.jid = null;
             view.showInvalidJidError();
+            view.disableLoginButton();
         }
     }
 
     @Override
     public void passwordChanged(String password) {
-
+        this.password = password;
+        if (password == null || password.isEmpty()) {
+            view.disableLoginButton();
+        } else if (jid != null) {
+            view.enableLoginButton();
+        }
     }
 
     @Override
     public void loginClicked() {
+        if (jid == null) {
+            view.showInvalidJidError();
+            return;
+        }
 
+        if (password == null) {
+            view.showInvalidPasswordError();
+            return;
+        }
+
+        if (service != null) {
+            view.disableLoginButton();
+            final Account account = new Account(jid);
+
+            Thread loginThread = new Thread(new Runnable() {
+                @Override
+                public void run() {
+                    SlamXmppConnection connection = null;
+                    try {
+                        connection = new SlamXmppConnection(
+                                jid.asEntityBareJidOrThrow(), password);
+                    } catch (UnknownHostException e) {
+                        e.printStackTrace();
+                        ((AppCompatActivity)view).runOnUiThread(new Runnable() {
+                            public void run() {
+                                Toast.makeText((Context)view, "Unknown host", Toast.LENGTH_SHORT).show();
+                            }
+                        });
+
+                        return;
+                    }
+
+                    service.addConnection(account, connection);
+                    final SlamXmppConnection finalConnection = connection;
+                    connection.login(new SlamXmppConnection.LoginCallback() {
+                        @Override
+                        public void success() {
+                            ((AppCompatActivity)view).runOnUiThread(new Runnable() {
+                                public void run() {
+                                    view.navigateToMainActivity();
+                                }
+                            });
+                            ChatManager.getInstanceFor(finalConnection.getConnection())
+                                    .addIncomingListener(new IncomingChatMessageListener() {
+                                        @Override
+                                        public void newIncomingMessage(final EntityBareJid from, final Message message, Chat chat) {
+                                            final AppCompatActivity activity = (AppCompatActivity) view;
+                                            activity.runOnUiThread(new Runnable() {
+                                                public void run() {
+                                                    Toast.makeText(activity.getApplicationContext(), from.toString() + ": " + message.getBody(), Toast.LENGTH_LONG).show();
+                                                }
+                                            });
+                                        }
+                                    });
+                        }
+
+                        @Override
+                        public void failure(final Exception e) {
+                            e.printStackTrace();
+                            ((AppCompatActivity)view).runOnUiThread(new Runnable() {
+                                public void run() {
+                                    Toast.makeText((Context)view, e.getMessage(), Toast.LENGTH_LONG).show();
+                                    view.enableLoginButton();
+                                }
+                            });
+                        }
+                    });
+                }
+            });
+            loginThread.start();
+
+        } else {
+            view.showServerNotFoundError();
+        }
+    }
+
+    @Override
+    public void bindService(SlamXmppService service) {
+        Log.d(TAG, "bindService()");
+        this.service = service;
+    }
+
+    @Override
+    public void unbindService() {
+        Log.d(TAG, "unbindService()");
+        this.service = null;
     }
 }

mobile/src/main/java/de/vanitasvitae/slam/mvp/presenter/dummy/DummyConversationPresenter.java

@@ -27,12 +27,13 @@ import java.util.ArrayList;
 import java.util.List;
 
 import de.vanitasvitae.slam.mvp.contracts.ConversationContract;
+import de.vanitasvitae.slam.xmpp.message.AbstractMessage;
 
 public class DummyConversationPresenter implements ConversationContract.Presenter {
 
     private final ConversationContract.View view;
 
-    private final List<Message> dummyMessages = new ArrayList<>();
+    private final List<AbstractMessage> dummyMessages = new ArrayList<>();
 
     public DummyConversationPresenter(ConversationContract.View view) {
         this.view = view;
@@ -41,6 +42,7 @@ public class DummyConversationPresenter implements ConversationContract.Presente
     }
 
     private void populateDummyMessages() {
+        /*
         try {
             BareJid alice = JidCreate.bareFrom("alice@wonderland.lit");
 
@@ -66,6 +68,7 @@ public class DummyConversationPresenter implements ConversationContract.Presente
         } catch (XmppStringprepException e) {
             e.printStackTrace();
         }
+        */
     }
 
     @Override

mobile/src/main/java/de/vanitasvitae/slam/mvp/presenter/dummy/DummyLoginPresenter.java

@@ -23,6 +23,7 @@ import org.jxmpp.jid.impl.JidCreate;
 import org.jxmpp.stringprep.XmppStringprepException;
 
 import de.vanitasvitae.slam.mvp.contracts.LoginContract;
+import de.vanitasvitae.slam.service.SlamXmppService;
 
 /**
  * Dummy presenter, that has no model.
@@ -82,4 +83,14 @@ public class DummyLoginPresenter implements LoginContract.Presenter {
             }
         }, 250);
     }
+
+    @Override
+    public void bindService(SlamXmppService service) {
+
+    }
+
+    @Override
+    public void unbindService() {
+
+    }
 }

mobile/src/main/java/de/vanitasvitae/slam/mvp/view/ContactDetailActivity.java

@@ -45,7 +45,7 @@ public class ContactDetailActivity extends ThemedAppCompatActivity
 
     public static final String TAG = "Slam!";
 
-    private final ContactDetailContract.Presenter presenter;
+    private ContactDetailContract.Presenter presenter;
 
     private final ContactDetailResourcesFragment resourcesFragment = new ContactDetailResourcesFragment();
     private final ContactDetailInfoFragment infoFragment = new ContactDetailInfoFragment();
@@ -71,7 +71,7 @@ public class ContactDetailActivity extends ThemedAppCompatActivity
     private int animateProfileCirclePercent = 30;
 
     public ContactDetailActivity() {
-        this.presenter = PresenterFactory.getInstance().createContactDetailPresenter(this);
+        setPresenter(PresenterFactory.getInstance().createContactDetailPresenter(this));
     }
 
     @Override
@@ -151,6 +151,11 @@ public class ContactDetailActivity extends ThemedAppCompatActivity
 
     }
 
+    @Override
+    public void setPresenter(ContactDetailContract.Presenter presenter) {
+        this.presenter = presenter;
+    }
+
     class DetailFragmentPagerAdapter extends FragmentPagerAdapter {
 
         public DetailFragmentPagerAdapter(FragmentManager fm) {

mobile/src/main/java/de/vanitasvitae/slam/mvp/view/ContactListFragment.java

@@ -47,13 +47,13 @@ public class ContactListFragment extends Fragment implements ContactListContract
     @BindView(R.id.recycler_list)
     RecyclerView recyclerView;
 
-    private final ContactListContract.Presenter presenter;
+    private ContactListContract.Presenter presenter;
 
     private final List<Contact> contacts = new ArrayList<>();
 
     public ContactListFragment() {
         super();
-        this.presenter = PresenterFactory.getInstance().createContactListPresenter(this);
+        setPresenter(PresenterFactory.getInstance().createContactListPresenter(this));
     }
 
     @Override
@@ -142,4 +142,8 @@ public class ContactListFragment extends Fragment implements ContactListContract
     }
 
 
+    @Override
+    public void setPresenter(ContactListContract.Presenter presenter) {
+        this.presenter = presenter;
+    }
 }

mobile/src/main/java/de/vanitasvitae/slam/mvp/view/ConversationFragment.java

@@ -56,7 +56,7 @@ public class ConversationFragment extends Fragment implements ConversationContra
     @BindView(R.id.recycler_chat)
     RecyclerView recyclerView;
 
-    private final ConversationContract.Presenter presenter;
+    private ConversationContract.Presenter presenter;
 
     Map<String, Integer> messageIdIndizes = new HashMap<>();
     List<AbstractMessage> messages = new ArrayList<>();
@@ -87,7 +87,7 @@ public class ConversationFragment extends Fragment implements ConversationContra
 
     public ConversationFragment() {
         super();
-        this.presenter = PresenterFactory.getInstance().createConversationPresenter(this);
+        setPresenter(PresenterFactory.getInstance().createConversationPresenter(this));
     }
 
     @Override
@@ -117,6 +117,11 @@ public class ConversationFragment extends Fragment implements ConversationContra
         recyclerView.getAdapter().notifyDataSetChanged();
     }
 
+    @Override
+    public void setPresenter(ConversationContract.Presenter presenter) {
+        this.presenter = presenter;
+    }
+
     @Override
     public void addMessageItems(List<AbstractMessage> messages, boolean end) {
         if (end) {

mobile/src/main/java/de/vanitasvitae/slam/mvp/view/ConversationListFragment.java

@@ -49,12 +49,12 @@ public class ConversationListFragment extends Fragment implements ConversationLi
     @BindView(R.id.recycler_list)
     RecyclerView recyclerView;
 
-    private final ConversationListContract.Presenter presenter;
+    private ConversationListContract.Presenter presenter;
     private final List<Conversation> conversations = new ArrayList<>();
 
     public ConversationListFragment() {
         super();
-        this.presenter = PresenterFactory.getInstance().createConversationListPresenter(this);
+        setPresenter(PresenterFactory.getInstance().createConversationListPresenter(this));
     }
 
     @Override
@@ -72,6 +72,11 @@ public class ConversationListFragment extends Fragment implements ConversationLi
         recyclerView.getAdapter().notifyDataSetChanged();
     }
 
+    @Override
+    public void setPresenter(ConversationListContract.Presenter presenter) {
+        this.presenter = presenter;
+    }
+
     @Override
     public void populateConversationList(List<Conversation> conversations) {
         this.conversations.clear();

mobile/src/main/java/de/vanitasvitae/slam/mvp/view/LoginActivity.java

@@ -17,8 +17,12 @@
  */
 package de.vanitasvitae.slam.mvp.view;
 
+import android.content.ComponentName;
+import android.content.Context;
 import android.content.Intent;
+import android.content.ServiceConnection;
 import android.os.Bundle;
+import android.os.IBinder;
 import android.support.design.widget.TextInputEditText;
 import android.support.design.widget.TextInputLayout;
 import android.support.v7.widget.Toolbar;
@@ -40,8 +44,9 @@ import de.vanitasvitae.slam.R;
 import de.vanitasvitae.slam.mvp.PresenterFactory;
 import de.vanitasvitae.slam.mvp.view.abstr.ThemedAppCompatActivity;
 import de.vanitasvitae.slam.mvp.contracts.LoginContract;
+import de.vanitasvitae.slam.service.SlamXmppService;
 
-public class LoginActivity extends ThemedAppCompatActivity implements LoginContract.View {
+public class LoginActivity extends ThemedAppCompatActivity implements LoginContract.View, ServiceConnection {
 
     // Presenter of this view
     private LoginContract.Presenter presenter;
@@ -67,9 +72,11 @@ public class LoginActivity extends ThemedAppCompatActivity implements LoginContr
     @BindView(R.id.button_login)
     Button buttonLogin;
 
+    private SlamXmppService slamService;
+
     public LoginActivity() {
         super();
-        this.presenter = PresenterFactory.getInstance().createLoginPresenter(this);
+        setPresenter(PresenterFactory.getInstance().createLoginPresenter(this));
     }
 
     @Override
@@ -103,8 +110,29 @@ public class LoginActivity extends ThemedAppCompatActivity implements LoginContr
         });
     }
 
+    @Override
+    protected void onResume() {
+        super.onResume();
+        // Start xmpp service
+        Intent serviceIntent = new Intent(this, SlamXmppService.class);
+        bindService(serviceIntent, this, Context.BIND_AUTO_CREATE);
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        unbindService(this);
+    }
+
+    @Override
+    public void setPresenter(LoginContract.Presenter presenter) {
+        this.presenter = presenter;
+    }
+
     @OnClick(R.id.button_login)
     void login() {
+        Intent serviceIntent = new Intent(getApplicationContext(), SlamXmppService.class);
+        getApplicationContext().startService(serviceIntent);
         presenter.loginClicked();
     }
 
@@ -162,5 +190,28 @@ public class LoginActivity extends ThemedAppCompatActivity implements LoginContr
         startActivity(new Intent(this, MainActivity.class));
         finish();
     }
+
+    @Override
+    public void disableLoginButton() {
+        buttonLogin.setEnabled(false);
+    }
+
+    @Override
+    public void enableLoginButton() {
+        buttonLogin.setEnabled(true);
+    }
+
+    @Override
+    public void onServiceConnected(ComponentName name, IBinder service) {
+        SlamXmppService.SlamBinder binder = (SlamXmppService.SlamBinder) service;
+        slamService = binder.getService();
+        presenter.bindService(slamService);
+    }
+
+    @Override
+    public void onServiceDisconnected(ComponentName name) {
+        slamService = null;
+        presenter.unbindService();
+    }
 }
 

mobile/src/main/java/de/vanitasvitae/slam/mvp/view/SearchFragment.java

@@ -31,10 +31,10 @@ import de.vanitasvitae.slam.mvp.contracts.SearchContract;
  */
 public class SearchFragment extends Fragment implements SearchContract.View {
 
-    private final SearchContract.Presenter presenter;
+    private SearchContract.Presenter presenter;
 
     public SearchFragment() {
-        this.presenter = PresenterFactory.getInstance().createSearchPresenter(this);
+        setPresenter(PresenterFactory.getInstance().createSearchPresenter(this));
     }
 
     @Override
@@ -66,4 +66,9 @@ public class SearchFragment extends Fragment implements SearchContract.View {
     public void hideEmptySearchResults() {
 
     }
+
+    @Override
+    public void setPresenter(SearchContract.Presenter presenter) {
+        this.presenter = presenter;
+    }
 }

mobile/src/main/java/de/vanitasvitae/slam/mvp/view/message/MessageView.java

@@ -34,6 +34,8 @@ import de.vanitasvitae.slam.xmpp.message.AbstractMessage;
 public abstract class MessageView<T extends AbstractMessage> extends RecyclerView.ViewHolder
         implements AbstractMessageContract.View {
 
+    protected AbstractMessageContract.Presenter presenter;
+
     public MessageView(View itemView) {
         super(itemView);
     }
@@ -83,4 +85,9 @@ public abstract class MessageView<T extends AbstractMessage> extends RecyclerVie
     public void displayErrorMessage() {
 
     }
+
+    @Override
+    public void setPresenter(AbstractMessageContract.Presenter presenter) {
+        this.presenter = presenter;
+    }
 }

mobile/src/main/java/de/vanitasvitae/slam/service/SlamXmppConnection.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright 2018 Paul Schaub
+ *
+ * This code is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+ */
+package de.vanitasvitae.slam.service;
+
+import android.util.Log;
+
+import org.jivesoftware.smack.AbstractXMPPConnection;
+import org.jivesoftware.smack.tcp.XMPPTCPConnection;
+import org.jivesoftware.smack.tcp.XMPPTCPConnectionConfiguration;
+import org.jivesoftware.smack.util.StringUtils;
+import org.jxmpp.jid.EntityBareJid;
+import org.jxmpp.jid.parts.Resourcepart;
+import org.jxmpp.stringprep.XmppStringprepException;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+
+/**
+ * Created by Paul Schaub on 24.02.18.
+ */
+public class SlamXmppConnection {
+
+    private static final String TAG = "SlamConn";
+
+    private final EntityBareJid jid;
+    private final AbstractXMPPConnection connection;
+    private final Resourcepart resourcepart;
+
+    public SlamXmppConnection(EntityBareJid jid, String password) throws UnknownHostException {
+        this.jid = jid;
+        // Resource
+        String res = "Slam-" + StringUtils.randomString(12);
+        try {
+            this.resourcepart = Resourcepart.from(res);
+        } catch (XmppStringprepException e) {
+            throw new AssertionError("Resourcepart \"" + res + "\" appears to be invalid.", e);
+        }
+
+        // Configuration
+        XMPPTCPConnectionConfiguration configuration = XMPPTCPConnectionConfiguration.builder()
+                .setHost(this.jid.getDomain().toString())
+                .setHostAddress(InetAddress.getByName(jid.getDomain().toString()))
+                .setXmppDomain(jid.asDomainBareJid())
+                .setUsernameAndPassword(jid.getLocalpart().toString(), password)
+                .setResource(resourcepart)
+                .build();
+
+        this.connection = new XMPPTCPConnection(configuration);
+    }
+
+    public AbstractXMPPConnection getConnection() {
+        return connection;
+    }
+
+    public void login(final LoginCallback callback) {
+        try {
+            getConnection().connect().login();
+            Log.d(TAG, "Account " + jid.toString() + " logged in.");
+            callback.success();
+        } catch (Exception e) {
+            Log.d(TAG, "Account " + jid.toString() + " could not log in.");
+            e.printStackTrace();
+            callback.failure(e);
+        }
+    }
+
+    public interface LoginCallback {
+        void success();
+        void failure(Exception e);
+    }
+}

mobile/src/main/java/de/vanitasvitae/slam/service/SlamXmppService.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2018 Paul Schaub
+ *
+ * This code is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+ */
+package de.vanitasvitae.slam.service;
+
+import android.app.Service;
+import android.content.Intent;
+import android.os.Binder;
+import android.os.IBinder;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.util.Log;
+
+import java.util.HashMap;
+
+import de.vanitasvitae.slam.xmpp.Account;
+
+/**
+ * Created by Paul Schaub on 24.02.18.
+ */
+public class SlamXmppService extends Service {
+
+    private static final String TAG = "SlamService";
+
+    private final IBinder binder = new SlamBinder();
+    private Account currentAccount;
+    private final HashMap<Account, SlamXmppConnection> connections = new HashMap<>();
+
+    @Nullable
+    @Override
+    public IBinder onBind(Intent intent) {
+        return binder;
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        Log.d(TAG,"onStartCommand()");
+        return Service.START_STICKY;
+    }
+
+    public void addConnection(@NonNull Account account, SlamXmppConnection connection) {
+        Log.d(TAG, "Adding a new connection for " + account.getJid().toString());
+        this.connections.put(account, connection);
+    }
+
+    @Override
+    public void onDestroy() {
+        Log.d(TAG, "onDestroy()");
+        for (SlamXmppConnection c : connections.values()) {
+            c.getConnection().disconnect();
+        }
+        super.onDestroy();
+    }
+
+    public SlamXmppConnection getConnection(@NonNull Account account) {
+        return connections.get(account);
+    }
+
+    public class SlamBinder extends Binder {
+        public SlamXmppService getService() {
+            return SlamXmppService.this;
+        }
+    }
+}

mobile/src/main/java/de/vanitasvitae/slam/task/LoginTask.java

@@ -0,0 +1,69 @@
+package de.vanitasvitae.slam.task;
+
+import android.os.AsyncTask;
+import android.support.annotation.NonNull;
+
+import org.jxmpp.jid.EntityBareJid;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+
+import de.vanitasvitae.slam.mvp.contracts.LoginContract;
+import de.vanitasvitae.slam.service.SlamXmppConnection;
+
+/**
+ * Created by Paul Schaub on 26.02.18.
+ */
+public class LoginTask extends AsyncTask<LoginTask.Credentials, Void, SlamXmppConnection> {
+
+    private final LoginContract.View view;
+    private Exception exception;
+
+    public LoginTask(LoginContract.View view) {
+        this.view = view;
+    }
+
+    @Override
+    protected SlamXmppConnection doInBackground(Credentials... credentials) {
+        if (credentials.length != 1) {
+            throw new IllegalArgumentException("Please only present one set of credentials at a time.");
+        }
+
+        SlamXmppConnection connection;
+        try {
+            connection = new SlamXmppConnection(credentials[0].jid, credentials[0].password);
+        } catch (UnknownHostException e) {
+            exception = e;
+            return null;
+        }
+
+        return null;
+    }
+
+    @Override
+    protected void onPreExecute() {
+
+    }
+
+    @Override
+    protected void onPostExecute(SlamXmppConnection result) {
+        if (exception == null) {
+            return;
+        }
+
+        if (exception instanceof UnknownHostException) {
+            view.showServerNotFoundError();
+            return;
+        }
+    }
+
+    public static class Credentials {
+        private final EntityBareJid jid;
+        private final String password;
+
+        public Credentials(@NonNull EntityBareJid jid, @NonNull String password) {
+            this.jid = jid;
+            this.password = password;
+        }
+    }
+}

mobile/src/main/java/de/vanitasvitae/slam/xmpp/Account.java

@@ -17,8 +17,20 @@
  */
 package de.vanitasvitae.slam.xmpp;
 
+import org.jxmpp.jid.BareJid;
+
 /**
  * Created by Paul Schaub on 24.02.18.
  */
 public class Account {
+
+    private final BareJid jid;
+
+    public Account(BareJid jid) {
+        this.jid = jid;
+    }
+
+    public BareJid getJid() {
+        return jid;
+    }
 }