Bumped version number for beta release.

Prevent a crash caused by empty emoji

Closes #1015

See merge request !571

bramble-core/src/main/java/org/briarproject/bramble/BrambleCoreModule.java

@@ -54,6 +54,7 @@ public class BrambleCoreModule {
 		c.inject(new IdentityModule.EagerSingletons());
 		c.inject(new LifecycleModule.EagerSingletons());
 		c.inject(new PluginModule.EagerSingletons());
+		c.inject(new PropertiesModule.EagerSingletons());
 		c.inject(new SyncModule.EagerSingletons());
 		c.inject(new SystemModule.EagerSingletons());
 		c.inject(new TransportModule.EagerSingletons());

briar-android/build.gradle

@@ -78,8 +78,8 @@ android {
 	defaultConfig {
 		minSdkVersion 14
 		targetSdkVersion 22
-		versionCode 1602
-		versionName "0.16.2"
+		versionCode 1605
+		versionName "0.16.5"
 		applicationId "org.briarproject.briar.beta"
 		resValue "string", "app_package", "org.briarproject.briar.beta"
 		buildConfigField "String", "GitHash", "\"${getGitHash()}\""

briar-android/src/main/java/org/briarproject/briar/android/BriarApplicationImpl.java

@@ -2,6 +2,9 @@ package org.briarproject.briar.android;
 
 import android.app.Application;
 import android.content.Context;
+import android.os.StrictMode;
+import android.os.StrictMode.ThreadPolicy;
+import android.os.StrictMode.VmPolicy;
 
 import org.acra.ACRA;
 import org.acra.ReportingInteractionMode;
@@ -33,6 +36,8 @@ import static org.acra.ReportField.REPORT_ID;
 import static org.acra.ReportField.STACK_TRACE;
 import static org.acra.ReportField.USER_APP_START_DATE;
 import static org.acra.ReportField.USER_CRASH_DATE;
+import static org.briarproject.briar.android.TestingConstants.DEFAULT_LOG_LEVEL;
+import static org.briarproject.briar.android.TestingConstants.IS_DEBUG_BUILD;
 
 @ReportsCrashes(
 		reportPrimerClass = BriarReportPrimer.class,
@@ -72,6 +77,9 @@ public class BriarApplicationImpl extends Application
 	@Override
 	public void onCreate() {
 		super.onCreate();
+
+		if (IS_DEBUG_BUILD) enableStrictMode();
+		Logger.getLogger("").setLevel(DEFAULT_LOG_LEVEL);
 		LOG.info("Created");
 
 		applicationComponent = DaggerAndroidComponent.builder()
@@ -85,6 +93,17 @@ public class BriarApplicationImpl extends Application
 		AndroidEagerSingletons.initEagerSingletons(applicationComponent);
 	}
 
+	private void enableStrictMode() {
+		ThreadPolicy.Builder threadPolicy = new ThreadPolicy.Builder();
+		threadPolicy.detectAll();
+		threadPolicy.penaltyLog();
+		StrictMode.setThreadPolicy(threadPolicy.build());
+		VmPolicy.Builder vmPolicy = new VmPolicy.Builder();
+		vmPolicy.detectAll();
+		vmPolicy.penaltyLog();
+		StrictMode.setVmPolicy(vmPolicy.build());
+	}
+
 	@Override
 	public AndroidComponent getApplicationComponent() {
 		return applicationComponent;

briar-android/src/main/java/org/briarproject/briar/android/TestingConstants.java

@@ -10,13 +10,21 @@ import static java.util.logging.Level.OFF;
 public interface TestingConstants {
 
 	/**
-	 * Whether this is an alpha or beta build. This should be set to false for
+	 * Whether this is a debug build.
+	 */
+	boolean IS_DEBUG_BUILD = BuildConfig.DEBUG;
+
+	/**
+	 * Whether this is a beta build. This should be set to false for final
 	 * release builds.
 	 */
-	boolean TESTING = BuildConfig.DEBUG;
+	boolean IS_BETA_BUILD = true;
 
-	/** Default log level. */
-	Level DEFAULT_LOG_LEVEL = TESTING ? INFO : OFF;
+	/**
+	 * Default log level. Disable logging for final release builds.
+	 */
+	@SuppressWarnings("ConstantConditions")
+	Level DEFAULT_LOG_LEVEL = IS_DEBUG_BUILD || IS_BETA_BUILD ? INFO : OFF;
 
 	/**
 	 * Whether to prevent screenshots from being taken. Setting this to true
@@ -24,5 +32,5 @@ public interface TestingConstants {
 	 * Unfortunately this also prevents the user from taking screenshots
 	 * intentionally.
 	 */
-	boolean PREVENT_SCREENSHOTS = !TESTING;
+	boolean PREVENT_SCREENSHOTS = !IS_DEBUG_BUILD;
 }

briar-android/src/main/java/org/briarproject/briar/android/blog/BasePostFragment.java

@@ -60,8 +60,7 @@ abstract class BasePostFragment extends BaseFragment {
 				false);
 		progressBar = (ProgressBar) view.findViewById(R.id.progressBar);
 		progressBar.setVisibility(VISIBLE);
-		ui = new BlogPostViewHolder(view);
-		ui.setOnBlogPostClickListener(new OnBlogPostClickListener() {
+		ui = new BlogPostViewHolder(view, true, new OnBlogPostClickListener() {
 			@Override
 			public void onBlogPostClick(BlogPostItem post) {
 				// We're already there

briar-android/src/main/java/org/briarproject/briar/android/blog/BlogControllerImpl.java

@@ -106,7 +106,7 @@ class BlogControllerImpl extends BaseControllerImpl
 			BlogInvitationResponseReceivedEvent b =
 					(BlogInvitationResponseReceivedEvent) e;
 			InvitationResponse r = b.getResponse();
-			if (r.getGroupId().equals(groupId) && r.wasAccepted()) {
+			if (r.getShareableId().equals(groupId) && r.wasAccepted()) {
 				LOG.info("Blog invitation accepted");
 				onBlogInvitationAccepted(b.getContactId());
 			}

briar-android/src/main/java/org/briarproject/briar/android/blog/BlogPostAdapter.java

@@ -23,8 +23,7 @@ class BlogPostAdapter
 			int viewType) {
 		View v = LayoutInflater.from(ctx).inflate(
 				R.layout.list_item_blog_post, parent, false);
-		BlogPostViewHolder ui = new BlogPostViewHolder(v);
-		ui.setOnBlogPostClickListener(listener);
+		BlogPostViewHolder ui = new BlogPostViewHolder(v, false, listener);
 		return ui;
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/blog/BlogPostFragment.java

@@ -8,14 +8,16 @@ import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
 import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.bramble.api.sync.MessageId;
 import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.blog.BaseController.BlogListener;
 import org.briarproject.briar.android.controller.handler.UiResultExceptionHandler;
+import org.briarproject.briar.api.blog.BlogPostHeader;
 
 import javax.inject.Inject;
 
 @UiThread
 @MethodsNotNullByDefault
 @ParametersNotNullByDefault
-public class BlogPostFragment extends BasePostFragment {
+public class BlogPostFragment extends BasePostFragment implements BlogListener {
 
 	private static final String TAG = BlogPostFragment.class.getName();
 
@@ -40,6 +42,7 @@ public class BlogPostFragment extends BasePostFragment {
 	@Override
 	public void injectFragment(ActivityComponent component) {
 		component.inject(this);
+		blogController.setBlogListener(this);
 	}
 
 	@Override
@@ -59,4 +62,15 @@ public class BlogPostFragment extends BasePostFragment {
 					}
 				});
 	}
+
+	@Override
+	public void onBlogPostAdded(BlogPostHeader header, boolean local) {
+		// doesn't matter here
+	}
+
+	@Override
+	public void onBlogRemoved() {
+		finish();
+	}
+
 }

briar-android/src/main/java/org/briarproject/briar/android/blog/BlogPostViewHolder.java

@@ -4,6 +4,7 @@ import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.os.Build;
+import android.support.annotation.NonNull;
 import android.support.annotation.UiThread;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.app.ActivityOptionsCompat;
@@ -47,12 +48,16 @@ class BlogPostViewHolder extends RecyclerView.ViewHolder {
 	private final ImageView reblogButton;
 	private final TextView body;
 	private final ViewGroup commentContainer;
+	private final boolean fullText;
 
-	@Nullable
-	private OnBlogPostClickListener listener;
+	@NonNull
+	private final OnBlogPostClickListener listener;
 
-	BlogPostViewHolder(View v) {
+	BlogPostViewHolder(View v, boolean fullText,
+			@NonNull OnBlogPostClickListener listener) {
 		super(v);
+		this.fullText = fullText;
+		this.listener = listener;
 
 		ctx = v.getContext();
 		layout = (ViewGroup) v.findViewById(R.id.postLayout);
@@ -64,10 +69,6 @@ class BlogPostViewHolder extends RecyclerView.ViewHolder {
 				(ViewGroup) v.findViewById(R.id.commentContainer);
 	}
 
-	void setOnBlogPostClickListener(OnBlogPostClickListener listener) {
-		this.listener = listener;
-	}
-
 	void setVisibility(int visibility) {
 		layout.setVisibility(visibility);
 	}
@@ -92,7 +93,7 @@ class BlogPostViewHolder extends RecyclerView.ViewHolder {
 		if (item == null) return;
 
 		setTransitionName(item.getId());
-		if (listener != null) {
+		if (!fullText) {
 			layout.setClickable(true);
 			layout.setOnClickListener(new OnClickListener() {
 				@Override
@@ -111,7 +112,7 @@ class BlogPostViewHolder extends RecyclerView.ViewHolder {
 		author.setPersona(
 				item.isRssFeed() ? AuthorView.RSS_FEED : AuthorView.NORMAL);
 		// TODO make author clickable more often #624
-		if (listener != null && item.getHeader().getType() == POST) {
+		if (!fullText && item.getHeader().getType() == POST) {
 			author.setAuthorClickable(new OnClickListener() {
 				@Override
 				public void onClick(View v) {
@@ -124,7 +125,7 @@ class BlogPostViewHolder extends RecyclerView.ViewHolder {
 
 		// post body
 		Spanned bodyText = getSpanned(item.getBody());
-		if (listener == null) {
+		if (fullText) {
 			body.setText(bodyText);
 			body.setTextIsSelectable(true);
 			makeLinksClickable(body);
@@ -170,7 +171,7 @@ class BlogPostViewHolder extends RecyclerView.ViewHolder {
 		reblogger.setAuthor(item.getAuthor());
 		reblogger.setAuthorStatus(item.getAuthorStatus());
 		reblogger.setDate(item.getTimestamp());
-		if (listener != null) {
+		if (!fullText) {
 			reblogger.setAuthorClickable(new OnClickListener() {
 				@Override
 				public void onClick(View v) {
@@ -200,7 +201,7 @@ class BlogPostViewHolder extends RecyclerView.ViewHolder {
 			// TODO make author clickable #624
 
 			body.setText(c.getComment());
-			if (listener == null) body.setTextIsSelectable(true);
+			if (fullText) body.setTextIsSelectable(true);
 
 			commentContainer.addView(v);
 		}

briar-android/src/main/java/org/briarproject/briar/android/blog/ReblogFragment.java

@@ -161,7 +161,18 @@ public class ReblogFragment extends BaseFragment implements TextInputListener {
 		private ViewHolder(View v) {
 			scrollView = (ScrollView) v.findViewById(R.id.scrollView);
 			progressBar = (ProgressBar) v.findViewById(R.id.progressBar);
-			post = new BlogPostViewHolder(v.findViewById(R.id.postLayout));
+			post = new BlogPostViewHolder(v.findViewById(R.id.postLayout),
+					true, new OnBlogPostClickListener() {
+						@Override
+						public void onBlogPostClick(BlogPostItem post) {
+							// do nothing
+						}
+
+						@Override
+						public void onAuthorClick(BlogPostItem post) {
+							// probably don't want to allow author clicks here
+						}
+					});
 			input = (TextInputView) v.findViewById(R.id.inputText);
 		}
 	}

briar-android/src/main/java/org/briarproject/briar/android/forum/CreateForumActivity.java

@@ -2,6 +2,7 @@ package org.briarproject.briar.android.forum;
 
 import android.content.Intent;
 import android.os.Bundle;
+import android.support.design.widget.TextInputLayout;
 import android.text.Editable;
 import android.text.TextWatcher;
 import android.view.KeyEvent;
@@ -43,10 +44,10 @@ public class CreateForumActivity extends BriarActivity {
 	private static final Logger LOG =
 			Logger.getLogger(CreateForumActivity.class.getName());
 
+	private TextInputLayout nameEntryLayout;
 	private EditText nameEntry;
 	private Button createForumButton;
 	private ProgressBar progress;
-	private TextView feedback;
 
 	// Fields that are accessed from background threads must be volatile
 	@Inject
@@ -58,6 +59,8 @@ public class CreateForumActivity extends BriarActivity {
 
 		setContentView(R.layout.activity_create_forum);
 
+		nameEntryLayout =
+				(TextInputLayout) findViewById(R.id.createForumNameLayout);
 		nameEntry = (EditText) findViewById(R.id.createForumNameEntry);
 		nameEntry.addTextChangedListener(new TextWatcher() {
 
@@ -85,8 +88,6 @@ public class CreateForumActivity extends BriarActivity {
 			}
 		});
 
-		feedback = (TextView) findViewById(R.id.createForumFeedback);
-
 		createForumButton = (Button) findViewById(R.id.createForumButton);
 		createForumButton.setOnClickListener(new OnClickListener() {
 			@Override
@@ -118,10 +119,10 @@ public class CreateForumActivity extends BriarActivity {
 		String name = nameEntry.getText().toString();
 		int length = StringUtils.toUtf8(name).length;
 		if (length > MAX_FORUM_NAME_LENGTH) {
-			feedback.setText(R.string.name_too_long);
+			nameEntryLayout.setError(getString(R.string.name_too_long));
 			return false;
 		}
-		feedback.setText("");
+		nameEntryLayout.setError(null);
 		return length > 0;
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/forum/ForumControllerImpl.java

@@ -85,7 +85,7 @@ class ForumControllerImpl extends
 					(ForumInvitationResponseReceivedEvent) e;
 			ForumInvitationResponse r =
 					(ForumInvitationResponse) f.getResponse();
-			if (r.getGroupId().equals(getGroupId()) && r.wasAccepted()) {
+			if (r.getShareableId().equals(getGroupId()) && r.wasAccepted()) {
 				LOG.info("Forum invitation was accepted");
 				onForumInvitationAccepted(r.getContactId());
 			}

briar-android/src/main/java/org/briarproject/briar/android/privategroup/conversation/GroupControllerImpl.java

@@ -108,7 +108,7 @@ class GroupControllerImpl extends
 					(GroupInvitationResponseReceivedEvent) e;
 			final GroupInvitationResponse r =
 					(GroupInvitationResponse) g.getResponse();
-			if (getGroupId().equals(r.getGroupId()) && r.wasAccepted()) {
+			if (getGroupId().equals(r.getShareableId()) && r.wasAccepted()) {
 				listener.runOnUiThreadUnlessDestroyed(new Runnable() {
 					@Override
 					public void run() {

briar-android/src/main/java/org/briarproject/briar/android/privategroup/creation/CreateGroupFragment.java

@@ -2,6 +2,7 @@ package org.briarproject.briar.android.privategroup.creation;
 
 import android.content.Context;
 import android.os.Bundle;
+import android.support.design.widget.TextInputLayout;
 import android.text.Editable;
 import android.text.TextWatcher;
 import android.view.KeyEvent;
@@ -11,6 +12,7 @@ import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.EditText;
+import android.widget.ProgressBar;
 import android.widget.TextView;
 import android.widget.TextView.OnEditorActionListener;
 
@@ -19,6 +21,8 @@ import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.fragment.BaseFragment;
 
+import static android.view.View.GONE;
+import static android.view.View.VISIBLE;
 import static org.briarproject.briar.api.privategroup.PrivateGroupConstants.MAX_GROUP_NAME_LENGTH;
 
 public class CreateGroupFragment extends BaseFragment {
@@ -28,7 +32,8 @@ public class CreateGroupFragment extends BaseFragment {
 	private CreateGroupListener listener;
 	private EditText nameEntry;
 	private Button createGroupButton;
-	private TextView feedback;
+	private TextInputLayout nameLayout;
+	private ProgressBar progress;
 
 	@Override
 	public void onAttach(Context context) {
@@ -69,7 +74,7 @@ public class CreateGroupFragment extends BaseFragment {
 			}
 		});
 
-		feedback = (TextView) v.findViewById(R.id.feedback);
+		nameLayout = (TextInputLayout) v.findViewById(R.id.nameLayout);
 
 		createGroupButton = (Button) v.findViewById(R.id.button);
 		createGroupButton.setOnClickListener(new OnClickListener() {
@@ -79,6 +84,8 @@ public class CreateGroupFragment extends BaseFragment {
 			}
 		});
 
+		progress = (ProgressBar) v.findViewById(R.id.progressBar);
+
 		return v;
 	}
 
@@ -107,16 +114,18 @@ public class CreateGroupFragment extends BaseFragment {
 		String name = nameEntry.getText().toString();
 		int length = StringUtils.toUtf8(name).length;
 		if (length > MAX_GROUP_NAME_LENGTH) {
-			feedback.setText(R.string.name_too_long);
+			nameLayout.setError(getString(R.string.name_too_long));
 			return false;
 		}
-		feedback.setText("");
+		nameLayout.setError(null);
 		return length > 0;
 	}
 
 	private void createGroup() {
 		if (!validateName()) return;
 		listener.hideSoftKeyboard(nameEntry);
+		createGroupButton.setVisibility(GONE);
+		progress.setVisibility(VISIBLE);
 		listener.onGroupNameChosen(nameEntry.getText().toString());
 	}
 }

briar-android/src/main/java/org/briarproject/briar/android/splash/SplashScreenActivity.java

@@ -4,9 +4,6 @@ import android.content.Intent;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
-import android.os.StrictMode;
-import android.os.StrictMode.ThreadPolicy;
-import android.os.StrictMode.VmPolicy;
 import android.support.v7.preference.PreferenceManager;
 import android.transition.Fade;
 
@@ -23,8 +20,6 @@ import java.util.logging.Logger;
 import javax.inject.Inject;
 
 import static org.briarproject.briar.android.BriarApplication.EXPIRY_DATE;
-import static org.briarproject.briar.android.TestingConstants.DEFAULT_LOG_LEVEL;
-import static org.briarproject.briar.android.TestingConstants.TESTING;
 
 public class SplashScreenActivity extends BaseActivity {
 
@@ -36,11 +31,6 @@ public class SplashScreenActivity extends BaseActivity {
 	@Inject
 	protected AndroidExecutor androidExecutor;
 
-	public SplashScreenActivity() {
-		Logger.getLogger("").setLevel(DEFAULT_LOG_LEVEL);
-		enableStrictMode();
-	}
-
 	@Override
 	public void onCreate(Bundle state) {
 		super.onCreate(state);
@@ -81,19 +71,6 @@ public class SplashScreenActivity extends BaseActivity {
 		}
 	}
 
-	private void enableStrictMode() {
-		if (TESTING) {
-			ThreadPolicy.Builder threadPolicy = new ThreadPolicy.Builder();
-			threadPolicy.detectAll();
-			threadPolicy.penaltyLog();
-			StrictMode.setThreadPolicy(threadPolicy.build());
-			VmPolicy.Builder vmPolicy = new VmPolicy.Builder();
-			vmPolicy.detectAll();
-			vmPolicy.penaltyLog();
-			StrictMode.setVmPolicy(vmPolicy.build());
-		}
-	}
-
 	private void setPreferencesDefaults() {
 		androidExecutor.runOnBackgroundThread(new Runnable() {
 			@Override

briar-android/src/main/java/org/thoughtcrime/securesms/components/emoji/EmojiPageView.java

@@ -104,8 +104,9 @@ public class EmojiPageView extends FrameLayout {
 								emojiSize + 2 * pad));
 				view = emojiView;
 			}
+			String emoji = model.getEmoji()[position];
+			view.setEmoji(emoji);
 
-			view.setEmoji(model.getEmoji()[position]);
 			return view;
 		}
 	}

briar-android/src/main/java/org/thoughtcrime/securesms/components/emoji/RecentEmojiPageModel.java

@@ -32,7 +32,7 @@ public class RecentEmojiPageModel implements EmojiPageModel {
 	private static final Logger LOG =
 			Logger.getLogger(RecentEmojiPageModel.class.getName());
 
-	private static final String EMOJI_LRU_PREFERENCE = "pref_emoji_recent";
+	private static final String EMOJI_LRU_PREFERENCE = "pref_emoji_recent2";
 	private static final int EMOJI_LRU_SIZE = 50;
 
 	private final LinkedHashSet<String> recentlyUsed; // UI thread
@@ -98,12 +98,12 @@ public class RecentEmojiPageModel implements EmojiPageModel {
 	}
 
 	private String serialize(LinkedHashSet<String> emojis) {
-		return StringUtils.join(emojis, ";");
+		return StringUtils.join(emojis, "\t");
 	}
 
 	private LinkedHashSet<String> deserialize(@Nullable String serialized) {
 		if (serialized == null) return new LinkedHashSet<>();
-		String[] list = serialized.split(";");
+		String[] list = serialized.split("\t");
 		LinkedHashSet<String> result = new LinkedHashSet<>(list.length);
 		Collections.addAll(result, list);
 		return result;

briar-android/src/main/res/layout/activity_create_forum.xml

@@ -1,37 +1,42 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
 	xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto"
+	xmlns:tools="http://schemas.android.com/tools"
 	android:layout_width="match_parent"
 	android:layout_height="match_parent"
-	android:gravity="center_horizontal"
 	android:orientation="vertical"
-	android:layout_margin="@dimen/margin_large">
+	android:padding="@dimen/margin_large">
 
-	<EditText
+	<android.support.design.widget.TextInputLayout
+		android:id="@+id/createForumNameLayout"
 		android:layout_width="match_parent"
 		android:layout_height="wrap_content"
-		android:id="@+id/createForumNameEntry"
-		android:maxLines="1"
-		android:inputType="text|textCapSentences"
-		android:hint="@string/choose_forum_hint" />
+		app:errorEnabled="true">
 
-	<TextView
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		android:id="@+id/createForumFeedback"
-		android:gravity="center" />
+		<EditText
+			android:id="@+id/createForumNameEntry"
+			android:layout_width="match_parent"
+			android:layout_height="wrap_content"
+			android:hint="@string/choose_forum_hint"
+			android:inputType="text|textCapSentences"
+			android:maxLines="1"/>
+
+	</android.support.design.widget.TextInputLayout>
 
 	<Button
-		style="@style/BriarButton"
 		android:id="@+id/createForumButton"
+		style="@style/BriarButton"
 		android:enabled="false"
-		android:text="@string/create_forum_button" />
+		android:text="@string/create_forum_button"/>
 
 	<ProgressBar
 		android:id="@+id/createForumProgressBar"
-		android:layout_height="wrap_content"
 		android:layout_width="wrap_content"
+		android:layout_height="wrap_content"
+		android:layout_gravity="center"
 		android:indeterminate="true"
-		android:visibility="gone" />
+		android:visibility="gone"
+		tools:visibility="visible"/>
 
 </LinearLayout>

briar-android/src/main/res/layout/fragment_create_group.xml

@@ -1,30 +1,42 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
 	xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto"
+	xmlns:tools="http://schemas.android.com/tools"
 	android:layout_width="match_parent"
 	android:layout_height="match_parent"
-	android:gravity="center_horizontal"
 	android:orientation="vertical"
-	android:layout_margin="@dimen/margin_large">
+	android:padding="@dimen/margin_large">
 
-	<EditText
-		android:id="@+id/name"
+	<android.support.design.widget.TextInputLayout
+		android:id="@+id/nameLayout"
 		android:layout_width="match_parent"
 		android:layout_height="wrap_content"
-		android:maxLines="1"
-		android:inputType="text|textCapSentences"
-		android:hint="@string/groups_create_group_hint"/>
+		app:errorEnabled="true">
 
-	<TextView
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		android:id="@+id/feedback"
-		android:gravity="center" />
+		<EditText
+			android:id="@+id/name"
+			android:layout_width="match_parent"
+			android:layout_height="wrap_content"
+			android:hint="@string/groups_create_group_hint"
+			android:inputType="text|textCapSentences"
+			android:maxLines="1"/>
+
+	</android.support.design.widget.TextInputLayout>
 
 	<Button
-		style="@style/BriarButton"
 		android:id="@+id/button"
+		style="@style/BriarButton"
 		android:enabled="false"
 		android:text="@string/groups_create_group_button"/>
 
+	<ProgressBar
+		android:id="@+id/progressBar"
+		android:layout_width="wrap_content"
+		android:layout_height="wrap_content"
+		android:layout_gravity="center"
+		android:indeterminate="true"
+		android:visibility="gone"
+		tools:visibility="visible"/>
+
 </LinearLayout>

briar-core/src/main/java/org/briarproject/briar/feed/FeedManagerImpl.java

@@ -59,6 +59,7 @@ import okhttp3.Dns;
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
 import okhttp3.Response;
+import okhttp3.ResponseBody;
 
 import static java.util.concurrent.TimeUnit.MILLISECONDS;
 import static java.util.logging.Level.WARNING;
@@ -334,7 +335,9 @@ class FeedManagerImpl implements FeedManager, Client, EventListener,
 	private SyndFeed fetchSyndFeed(String url)
 			throws FeedException, IOException {
 		// fetch feed
-		SyndFeed f = getSyndFeed(getFeedInputStream(url));
+		InputStream stream = getFeedInputStream(url);
+		SyndFeed f = getSyndFeed(stream);
+		stream.close();
 
 		if (f.getEntries().size() == 0)
 			throw new FeedException("Feed has no entries");
@@ -387,7 +390,9 @@ class FeedManagerImpl implements FeedManager, Client, EventListener,
 
 		// Execute Request
 		Response response = client.newCall(request).execute();
-		return response.body().byteStream();
+		ResponseBody body = response.body();
+		if (body != null) return body.byteStream();
+		throw new IOException("Empty response body");
 	}
 
 	private SyndFeed getSyndFeed(InputStream stream)
@@ -433,7 +438,6 @@ class FeedManagerImpl implements FeedManager, Client, EventListener,
 
 		// build post body
 		StringBuilder b = new StringBuilder();
-		b.append("<h3>").append(feed.getTitle()).append("</h3>");
 
 		if (!StringUtils.isNullOrEmpty(entry.getTitle())) {
 			b.append("<h1>").append(entry.getTitle()).append("</h1>");

briar-core/src/test/java/org/briarproject/briar/sharing/BlogSharingIntegrationTest.java

@@ -5,7 +5,6 @@ import net.jodah.concurrentunit.Waiter;
 import org.briarproject.bramble.api.contact.Contact;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.db.NoSuchGroupException;
-import org.briarproject.bramble.api.db.Transaction;
 import org.briarproject.bramble.api.event.Event;
 import org.briarproject.bramble.api.event.EventListener;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
@@ -493,26 +492,6 @@ public class BlogSharingIntegrationTest
 		// 1 can again share blog 1 with 0
 		assertTrue(
 				blogSharingManager1.canBeShared(blog1.getId(), contact0From1));
-
-		// re-create local state (simulates sign-out and sign-in)
-		Transaction txn0 = db0.startTransaction(false);
-		((BlogSharingManagerImpl) blogSharingManager0).createLocalState(txn0);
-		db0.commitTransaction(txn0);
-		db0.endTransaction(txn0);
-		Transaction txn1 = db1.startTransaction(false);
-		((BlogSharingManagerImpl) blogSharingManager1).createLocalState(txn1);
-		db1.commitTransaction(txn1);
-		db1.endTransaction(txn1);
-
-		// ensure there's no error with the sessions by checking shareability
-		assertFalse(
-				blogSharingManager0.canBeShared(blog1.getId(), contact1From0));
-		assertTrue(
-				blogSharingManager1.canBeShared(blog1.getId(), contact0From1));
-
-		// contacts should still be able to remove each other without errors
-		contactManager0.removeContact(contactId1From0);
-		contactManager1.removeContact(contactId0From1);
 	}
 
 	@Test

briar-core/src/test/java/org/briarproject/briar/sharing/BlogSharingManagerImplTest.java

@@ -0,0 +1,253 @@
+package org.briarproject.briar.sharing;
+
+import org.briarproject.bramble.api.client.ClientHelper;
+import org.briarproject.bramble.api.client.ContactGroupFactory;
+import org.briarproject.bramble.api.contact.Contact;
+import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.bramble.api.data.BdfDictionary;
+import org.briarproject.bramble.api.data.BdfEntry;
+import org.briarproject.bramble.api.data.MetadataParser;
+import org.briarproject.bramble.api.db.DatabaseComponent;
+import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.bramble.api.db.Metadata;
+import org.briarproject.bramble.api.db.Transaction;
+import org.briarproject.bramble.api.identity.Author;
+import org.briarproject.bramble.api.identity.AuthorId;
+import org.briarproject.bramble.api.identity.IdentityManager;
+import org.briarproject.bramble.api.identity.LocalAuthor;
+import org.briarproject.bramble.api.sync.Group;
+import org.briarproject.bramble.api.sync.GroupId;
+import org.briarproject.bramble.api.sync.Message;
+import org.briarproject.bramble.api.sync.MessageId;
+import org.briarproject.bramble.test.BrambleMockTestCase;
+import org.briarproject.briar.api.blog.Blog;
+import org.briarproject.briar.api.blog.BlogInvitationResponse;
+import org.briarproject.briar.api.blog.BlogManager;
+import org.briarproject.briar.api.client.MessageTracker;
+import org.briarproject.briar.api.client.SessionId;
+import org.jmock.Expectations;
+import org.jmock.Mockery;
+import org.junit.Test;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import static org.briarproject.bramble.api.identity.AuthorConstants.MAX_PUBLIC_KEY_LENGTH;
+import static org.briarproject.bramble.api.sync.Group.Visibility.SHARED;
+import static org.briarproject.bramble.test.TestUtils.getRandomBytes;
+import static org.briarproject.bramble.test.TestUtils.getRandomId;
+import static org.briarproject.briar.api.blog.BlogSharingManager.CLIENT_ID;
+import static org.briarproject.briar.sharing.SharingConstants.GROUP_KEY_CONTACT_ID;
+
+public class BlogSharingManagerImplTest extends BrambleMockTestCase {
+
+	private final Mockery context = new Mockery();
+	private final BlogSharingManagerImpl blogSharingManager;
+	private final DatabaseComponent db = context.mock(DatabaseComponent.class);
+	private final IdentityManager identityManager =
+			context.mock(IdentityManager.class);
+	private final ClientHelper clientHelper = context.mock(ClientHelper.class);
+	private final SessionEncoder sessionEncoder =
+			context.mock(SessionEncoder.class);
+	private final SessionParser sessionParser =
+			context.mock(SessionParser.class);
+	private final ContactGroupFactory contactGroupFactory =
+			context.mock(ContactGroupFactory.class);
+	private final BlogManager blogManager = context.mock(BlogManager.class);
+
+	private final AuthorId localAuthorId = new AuthorId(getRandomId());
+	private final ContactId contactId = new ContactId(0);
+	private final AuthorId authorId = new AuthorId(getRandomId());
+	private final Author author = new Author(authorId, "Author",
+			getRandomBytes(MAX_PUBLIC_KEY_LENGTH));
+	private final Contact contact =
+			new Contact(contactId, author, localAuthorId, true, true);
+	private final Collection<Contact> contacts =
+			Collections.singletonList(contact);
+	private final Group contactGroup =
+			new Group(new GroupId(getRandomId()), CLIENT_ID,
+					getRandomBytes(42));
+	private final Group blogGroup =
+			new Group(new GroupId(getRandomId()), BlogManager.CLIENT_ID,
+					getRandomBytes(42));
+	private final Blog blog = new Blog(blogGroup, author, false);
+	@SuppressWarnings("unchecked")
+	private final ProtocolEngine<Blog> engine =
+			context.mock(ProtocolEngine.class);
+
+	@SuppressWarnings("unchecked")
+	public BlogSharingManagerImplTest() {
+		MetadataParser metadataParser = context.mock(MetadataParser.class);
+		MessageTracker messageTracker = context.mock(MessageTracker.class);
+		MessageParser<Blog> messageParser = context.mock(MessageParser.class);
+		InvitationFactory<Blog, BlogInvitationResponse> invitationFactory =
+				context.mock(InvitationFactory.class);
+		blogSharingManager =
+				new BlogSharingManagerImpl(db, clientHelper, metadataParser,
+						messageParser, sessionEncoder, sessionParser,
+						messageTracker, contactGroupFactory,
+						engine, invitationFactory, identityManager,
+						blogManager);
+	}
+
+	@Test
+	public void testAddingContactFreshState() throws Exception {
+		Map<MessageId, BdfDictionary> sessions =
+				new HashMap<MessageId, BdfDictionary>(0);
+		testAddingContact(sessions);
+	}
+
+	@Test
+	public void testAddingContactExistingState() throws Exception {
+		Map<MessageId, BdfDictionary> sessions =
+				new HashMap<MessageId, BdfDictionary>(1);
+		sessions.put(new MessageId(getRandomId()), new BdfDictionary());
+		testAddingContact(sessions);
+	}
+
+	@Test(expected = DbException.class)
+	public void testAddingContactMultipleSessions() throws Exception {
+		Map<MessageId, BdfDictionary> sessions =
+				new HashMap<MessageId, BdfDictionary>(2);
+		sessions.put(new MessageId(getRandomId()), new BdfDictionary());
+		sessions.put(new MessageId(getRandomId()), new BdfDictionary());
+		testAddingContact(sessions);
+	}
+
+	@Test
+	public void testRemovingBlogFreshState() throws Exception {
+		Map<MessageId, BdfDictionary> sessions =
+				new HashMap<MessageId, BdfDictionary>(0);
+		testRemovingBlog(sessions);
+	}
+
+	@Test
+	public void testRemovingBlogExistingState() throws Exception {
+		Map<MessageId, BdfDictionary> sessions =
+				new HashMap<MessageId, BdfDictionary>(1);
+		sessions.put(new MessageId(getRandomId()), new BdfDictionary());
+		testRemovingBlog(sessions);
+	}
+
+	@Test(expected = DbException.class)
+	public void testRemovingBlogMultipleSessions() throws Exception {
+		Map<MessageId, BdfDictionary> sessions =
+				new HashMap<MessageId, BdfDictionary>(2);
+		sessions.put(new MessageId(getRandomId()), new BdfDictionary());
+		sessions.put(new MessageId(getRandomId()), new BdfDictionary());
+		testRemovingBlog(sessions);
+	}
+
+	private void testAddingContact(final Map<MessageId, BdfDictionary> sessions)
+			throws Exception {
+		final Transaction txn = new Transaction(null, false);
+		final LocalAuthor localAuthor =
+				new LocalAuthor(localAuthorId, "Local Author",
+						getRandomBytes(MAX_PUBLIC_KEY_LENGTH),
+						getRandomBytes(MAX_PUBLIC_KEY_LENGTH),
+						System.currentTimeMillis());
+		final BdfDictionary meta = BdfDictionary
+				.of(new BdfEntry(GROUP_KEY_CONTACT_ID, contactId.getInt()));
+		final Group localBlogGroup =
+				new Group(new GroupId(getRandomId()), BlogManager.CLIENT_ID,
+						getRandomBytes(42));
+		final Blog localBlog = new Blog(localBlogGroup, localAuthor, false);
+
+		context.checking(new Expectations() {{
+			oneOf(db).getContacts(txn);
+			will(returnValue(contacts));
+			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID, contact);
+			will(returnValue(contactGroup));
+			oneOf(db).containsGroup(txn, contactGroup.getId());
+			will(returnValue(false));
+			oneOf(db).addGroup(txn, contactGroup);
+			oneOf(db).setGroupVisibility(txn, contactId, contactGroup.getId(),
+					SHARED);
+			oneOf(clientHelper)
+					.mergeGroupMetadata(txn, contactGroup.getId(), meta);
+			oneOf(identityManager).getLocalAuthor(txn);
+			will(returnValue(localAuthor));
+			oneOf(blogManager).getPersonalBlog(localAuthor);
+			will(returnValue(localBlog));
+			oneOf(blogManager).getPersonalBlog(author);
+			will(returnValue(blog));
+		}});
+		expectPreShareShareable(txn, contact, localBlog, sessions);
+		expectPreShareShareable(txn, contact, blog, sessions);
+
+		blogSharingManager.createLocalState(txn);
+	}
+
+	private void expectPreShareShareable(final Transaction txn,
+			final Contact contact, final Blog blog,
+			final Map<MessageId, BdfDictionary> sessions) throws Exception {
+		final Group contactGroup =
+				new Group(new GroupId(getRandomId()), CLIENT_ID,
+						getRandomBytes(42));
+		final BdfDictionary sessionDict = new BdfDictionary();
+		final Message message =
+				new Message(new MessageId(getRandomId()), contactGroup.getId(),
+						42L, getRandomBytes(1337));
+		context.checking(new Expectations() {{
+			oneOf(contactGroupFactory)
+					.createContactGroup(CLIENT_ID, contact);
+			will(returnValue(contactGroup));
+			oneOf(sessionParser)
+					.getSessionQuery(new SessionId(blog.getId().getBytes()));
+			will(returnValue(sessionDict));
+			oneOf(clientHelper)
+					.getMessageMetadataAsDictionary(txn, contactGroup.getId(),
+							sessionDict);
+			will(returnValue(sessions));
+			if (sessions.size() == 0) {
+				oneOf(db).addGroup(txn, blog.getGroup());
+				oneOf(db).setGroupVisibility(txn, contact.getId(),
+						blog.getGroup().getId(), SHARED);
+				oneOf(clientHelper)
+						.createMessageForStoringMetadata(contactGroup.getId());
+				will(returnValue(message));
+				oneOf(db).addLocalMessage(txn, message, new Metadata(), false);
+				oneOf(sessionEncoder).encodeSession(with(any(Session.class)));
+				will(returnValue(sessionDict));
+				oneOf(clientHelper).mergeMessageMetadata(txn, message.getId(),
+						sessionDict);
+			}
+		}});
+	}
+
+	private void testRemovingBlog(final Map<MessageId, BdfDictionary> sessions)
+			throws Exception {
+		final Transaction txn = new Transaction(null, false);
+		final BdfDictionary sessionDict = new BdfDictionary();
+		final Session session = new Session(contactGroup.getId(), blog.getId());
+
+		context.checking(new Expectations() {{
+			oneOf(db).getContacts(txn);
+			will(returnValue(contacts));
+			oneOf(contactGroupFactory).createContactGroup(CLIENT_ID, contact);
+			will(returnValue(contactGroup));
+			oneOf(sessionParser)
+					.getSessionQuery(new SessionId(blog.getId().getBytes()));
+			will(returnValue(sessionDict));
+			oneOf(clientHelper)
+					.getMessageMetadataAsDictionary(txn, contactGroup.getId(),
+							sessionDict);
+			will(returnValue(sessions));
+			if (sessions.size() == 1) {
+				oneOf(sessionParser)
+						.parseSession(contactGroup.getId(), sessionDict);
+				will(returnValue(session));
+				oneOf(engine).onLeaveAction(txn, session);
+				will(returnValue(session));
+				oneOf(sessionEncoder).encodeSession(session);
+				will(returnValue(sessionDict));
+				oneOf(clientHelper).mergeMessageMetadata(txn,
+						sessions.keySet().iterator().next(), sessionDict);
+			}
+		}});
+		blogSharingManager.removingBlog(txn, blog);
+	}
+
+}