Add WebP library for API 16.

bramble-android/build.gradle

@@ -42,7 +42,7 @@ configurations {
 
 dependencies {
 	implementation project(path: ':bramble-core', configuration: 'default')
-	tor 'org.briarproject:tor-android:0.3.5.14'
+	tor 'org.briarproject:tor-android:0.3.5.13@zip'
 	tor 'org.briarproject:obfs4proxy-android:0.0.12-dev-40245c4a@zip'
 
 	annotationProcessor 'com.google.dagger:dagger-compiler:2.24'

bramble-android/src/main/java/org/briarproject/bramble/util/AndroidUtils.java

@@ -119,7 +119,12 @@ public class AndroidUtils {
 	 * Returns an array of supported content types for image attachments.
 	 */
 	public static String[] getSupportedImageContentTypes() {
-		return new String[] {"image/jpeg", "image/png", "image/gif"};
+		return new String[] {
+				"image/jpeg",
+				"image/png",
+				"image/gif",
+				"image/webp"
+		};
 	}
 
 	@Nullable

bramble-android/witness.gradle

@@ -76,7 +76,7 @@ dependencyVerification {
         'org.bouncycastle:bcpkix-jdk15on:1.56:bcpkix-jdk15on-1.56.jar:7043dee4e9e7175e93e0b36f45b1ec1ecb893c5f755667e8b916eb8dd201c6ca',
         'org.bouncycastle:bcprov-jdk15on:1.56:bcprov-jdk15on-1.56.jar:963e1ee14f808ffb99897d848ddcdb28fa91ddda867eb18d303e82728f878349',
         'org.briarproject:obfs4proxy-android:0.0.12-dev-40245c4a:obfs4proxy-android-0.0.12-dev-40245c4a.zip:8ab05a8f8391be2cb5ab2b665c281a06d9e3a756bd0f95a40a36ca927866ea82',
-        'org.briarproject:tor-android:0.3.5.14:tor-android-0.3.5.14.jar:92bdb9890de8f14e9e90d1e3aff49a7a4b9262f19904410ae0a3baf94ed6be33',
+        'org.briarproject:tor-android:0.3.5.13:tor-android-0.3.5.13.zip:e0978db136731dae07774b722970cdae1e462fb5adc82845dd80a7e2d87f356c',
         'org.checkerframework:checker-compat-qual:2.5.3:checker-compat-qual-2.5.3.jar:d76b9afea61c7c082908023f0cbc1427fab9abd2df915c8b8a3e7a509bccbc6d',
         'org.checkerframework:checker-qual:2.5.2:checker-qual-2.5.2.jar:64b02691c8b9d4e7700f8ee2e742dce7ea2c6e81e662b7522c9ee3bf568c040a',
         'org.checkerframework:checker-qual:2.8.1:checker-qual-2.8.1.jar:9103499008bcecd4e948da29b17864abb64304e15706444ae209d17ebe0575df',

bramble-java/build.gradle

@@ -16,7 +16,7 @@ dependencies {
 	implementation fileTree(dir: 'libs', include: '*.jar')
 	implementation 'net.java.dev.jna:jna:4.5.2'
 	implementation 'net.java.dev.jna:jna-platform:4.5.2'
-	tor 'org.briarproject:tor:0.3.5.14'
+	tor 'org.briarproject:tor:0.3.5.13-1@zip'
 	tor 'org.briarproject:obfs4proxy:0.0.12-dev-40245c4a@zip'
 
 	annotationProcessor 'com.google.dagger:dagger-compiler:2.24'

bramble-java/witness.gradle

@@ -24,7 +24,7 @@ dependencyVerification {
         'org.apache.ant:ant:1.9.4:ant-1.9.4.jar:649ae0730251de07b8913f49286d46bba7b92d47c5f332610aa426c4f02161d8',
         'org.beanshell:bsh:1.3.0:bsh-1.3.0.jar:9b04edc75d19db54f1b4e8b5355e9364384c6cf71eb0a1b9724c159d779879f8',
         'org.briarproject:obfs4proxy:0.0.12-dev-40245c4a:obfs4proxy-0.0.12-dev-40245c4a.zip:172029e7058b3a83ac93ac4991a44bf76e16ce8d46f558f5836d57da3cb3a766',
-        'org.briarproject:tor:0.3.5.14:tor-0.3.5.14.jar:a969ab3f4bde4a7fc5945c53935cf3bca50de44451a34ebeca8add93e2a9af60',
+        'org.briarproject:tor:0.3.5.13-1:tor-0.3.5.13-1.zip:ef35c16bf8dc1f4c75ed71d9f55e4514f383d124ec96b859aca647c990927c99',
         'org.checkerframework:checker-compat-qual:2.5.3:checker-compat-qual-2.5.3.jar:d76b9afea61c7c082908023f0cbc1427fab9abd2df915c8b8a3e7a509bccbc6d',
         'org.checkerframework:checker-qual:2.5.2:checker-qual-2.5.2.jar:64b02691c8b9d4e7700f8ee2e742dce7ea2c6e81e662b7522c9ee3bf568c040a',
         'org.codehaus.mojo:animal-sniffer-annotations:1.17:animal-sniffer-annotations-1.17.jar:92654f493ecfec52082e76354f0ebf87648dc3d5cec2e3c3cdb947c016747a53',

briar-android/build.gradle

@@ -121,6 +121,7 @@ dependencies {
 		exclude group: 'com.android.support'
 		exclude module: 'disklrucache' // when there's no disk cache, we can't accidentally use it
 	}
+	implementation "com.github.zjupure:webpdecoder:2.0.$glideVersion"
 
 	annotationProcessor 'com.google.dagger:dagger-compiler:2.24'
 	annotationProcessor "com.github.bumptech.glide:compiler:$glideVersion"

briar-android/src/main/java/org/briarproject/briar/android/attachment/AttachmentCreationTask.java

@@ -102,12 +102,10 @@ class AttachmentCreationTask {
 		}
 		InputStream is = contentResolver.openInputStream(uri);
 		if (is == null) throw new IOException();
-		is = imageCompressor
+		is = imageCompressor.compressImage(is, contentType);
-				.compressImage(is, contentType);
 		long timestamp = System.currentTimeMillis();
-		AttachmentHeader h = messagingManager
+		AttachmentHeader h = messagingManager.addLocalAttachment(groupId,
-				.addLocalAttachment(groupId, timestamp,
+				timestamp, ImageCompressor.MIME_TYPE, is);
-						ImageCompressor.MIME_TYPE, is);
 		tryToClose(is, LOG, WARNING);
 		logDuration(LOG, "Storing attachment", start);
 		return h;

briar-android/src/main/java/org/briarproject/briar/android/attachment/media/ImageCompressor.java

@@ -11,7 +11,7 @@ public interface ImageCompressor {
 	/**
 	 * The MIME type of compressed images
 	 */
-	String MIME_TYPE = "image/jpeg";
+	String MIME_TYPE = "image/webp";
 
 	/**
 	 * Load an image from {@code is}, compress it and return an InputStream

briar-android/src/main/java/org/briarproject/briar/android/attachment/media/ImageCompressorImpl.java

@@ -12,7 +12,7 @@ import java.util.logging.Logger;
 
 import javax.inject.Inject;
 
-import static android.graphics.Bitmap.CompressFormat.JPEG;
+import static android.graphics.Bitmap.CompressFormat.WEBP;
 import static android.graphics.BitmapFactory.decodeStream;
 import static java.util.logging.Level.INFO;
 import static java.util.logging.Level.WARNING;
@@ -50,7 +50,7 @@ class ImageCompressorImpl implements ImageCompressor {
 	public InputStream compressImage(Bitmap bitmap) throws IOException {
 		ByteArrayOutputStream out = new ByteArrayOutputStream();
 		for (int quality = 100; quality >= 0; quality -= 10) {
-			if (!bitmap.compress(JPEG, quality, out))
+			if (!bitmap.compress(WEBP, quality, out))
 				throw new IOException();
 			if (out.size() <= MAX_IMAGE_SIZE) {
 				if (LOG.isLoggable(INFO)) {

briar-android/src/main/java/org/briarproject/briar/android/attachment/media/ImageHelperImpl.java

@@ -3,6 +3,8 @@ package org.briarproject.briar.android.attachment.media;
 import android.graphics.BitmapFactory;
 import android.webkit.MimeTypeMap;
 
+import com.bumptech.glide.integration.webp.WebpBitmapFactory;
+
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
 import java.io.InputStream;
@@ -25,6 +27,10 @@ class ImageHelperImpl implements ImageHelper {
 		BitmapFactory.Options options = new BitmapFactory.Options();
 		options.inJustDecodeBounds = true;
 		BitmapFactory.decodeStream(is, null, options);
+		if (options.outWidth < 1 || options.outHeight < 1) {
+			// BitmapFactory doesn't fully support WebP on API < 17
+			WebpBitmapFactory.decodeStream(is, null, options);
+		}
 		String mimeType = options.outMimeType;
 		if (mimeType == null) mimeType = "";
 		return new DecodeResult(options.outWidth, options.outHeight,
@@ -34,6 +40,7 @@ class ImageHelperImpl implements ImageHelper {
 	@Nullable
 	@Override
 	public String getExtensionFromMimeType(String mimeType) {
+		if ("image/webp".equals(mimeType)) return "webp";
 		MimeTypeMap mimeTypeMap = MimeTypeMap.getSingleton();
 		return mimeTypeMap.getExtensionFromMimeType(mimeType);
 	}

briar-android/src/main/java/org/briarproject/briar/android/attachment/media/ImageSizeCalculatorImpl.java

@@ -21,6 +21,7 @@ import static androidx.exifinterface.media.ExifInterface.TAG_ORIENTATION;
 import static java.util.logging.Level.WARNING;
 import static java.util.logging.Logger.getLogger;
 import static org.briarproject.bramble.util.LogUtils.logException;
+import static org.briarproject.bramble.util.StringUtils.isNullOrEmpty;
 
 @NotNullByDefault
 class ImageSizeCalculatorImpl implements ImageSizeCalculator {
@@ -61,6 +62,10 @@ class ImageSizeCalculatorImpl implements ImageSizeCalculator {
 				logException(LOG, WARNING, e);
 			}
 		}
+		if (!size.hasError() && isNullOrEmpty(size.getMimeType())) {
+			LOG.info("Could not determine content type, using supplied type");
+			size = new Size(size.getWidth(), size.getHeight(), contentType);
+		}
 		return size;
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageViewHolder.java

@@ -4,6 +4,8 @@ import android.graphics.Bitmap;
 import android.view.View;
 import android.widget.ImageView;
 
+import com.bumptech.glide.integration.webp.decoder.WebpDrawable;
+import com.bumptech.glide.integration.webp.decoder.WebpDrawableTransformation;
 import com.bumptech.glide.load.Transformation;
 
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
@@ -80,7 +82,9 @@ class ImageViewHolder extends ViewHolder {
 				.load(a.getHeader())
 				.diskCacheStrategy(NONE)
 				.error(ERROR_RES)
-				.transform(transformation)
+				.optionalTransform(transformation)
+				.optionalTransform(WebpDrawable.class,
+						new WebpDrawableTransformation(transformation))
 				.transition(withCrossFade())
 				.into(imageView)
 				.waitForLayout();

briar-android/src/main/java/org/briarproject/briar/android/view/TextAttachmentController.java

@@ -21,7 +21,6 @@ import org.briarproject.briar.android.view.ImagePreview.ImagePreviewListener;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
-import java.util.logging.Logger;
 
 import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
@@ -38,8 +37,6 @@ import static android.widget.Toast.LENGTH_LONG;
 import static androidx.core.content.ContextCompat.getColor;
 import static androidx.customview.view.AbsSavedState.EMPTY_STATE;
 import static androidx.lifecycle.Lifecycle.State.DESTROYED;
-import static java.util.logging.Level.INFO;
-import static java.util.logging.Logger.getLogger;
 import static org.briarproject.briar.android.util.UiUtils.resolveColorAttribute;
 import static org.briarproject.briar.android.view.TextSendController.SendState.SENT;
 import static org.briarproject.briar.api.messaging.MessagingConstants.MAX_ATTACHMENTS_PER_MESSAGE;
@@ -49,9 +46,6 @@ import static org.briarproject.briar.api.messaging.MessagingConstants.MAX_ATTACH
 public class TextAttachmentController extends TextSendController
 		implements ImagePreviewListener {
 
-	private static final Logger LOG =
-			getLogger(TextAttachmentController.class.getName());
-
 	private final ImagePreview imagePreview;
 	private final AttachmentListener attachmentListener;
 	private final CompositeSendButton sendButton;
@@ -73,7 +67,6 @@ public class TextAttachmentController extends TextSendController
 		sendButton.setOnImageClickListener(view -> onImageButtonClicked());
 	}
 
-	@UiThread
 	@Override
 	protected void updateViewState() {
 		super.updateViewState();
@@ -167,13 +160,10 @@ public class TextAttachmentController extends TextSendController
 	 * at most once per call to
 	 * {@link Activity#startActivityForResult(Intent, int)}.
 	 */
-	@UiThread
 	@SuppressWarnings("JavadocReference")
 	public void onImageReceived(@Nullable Intent resultData) {
-		if (LOG.isLoggable(INFO)) LOG.info("onImageReceived: " + resultData);
 		if (resultData == null) return;
-		if (loadingUris) throw new AssertionError("still loading URIs");
+		if (loadingUris || !imageUris.isEmpty()) throw new AssertionError();
-		if (!imageUris.isEmpty()) throw new AssertionError("uris " + imageUris);
 		List<Uri> newUris = new ArrayList<>();
 		if (resultData.getData() != null) {
 			newUris.add(resultData.getData());
@@ -187,7 +177,6 @@ public class TextAttachmentController extends TextSendController
 		}
 	}
 
-	@UiThread
 	private void onNewUris(boolean restart, List<Uri> newUris) {
 		if (newUris.isEmpty()) return;
 		if (loadingUris) throw new AssertionError();
@@ -208,9 +197,8 @@ public class TextAttachmentController extends TextSendController
 			@Override
 			public void onChanged(@Nullable AttachmentResult attachmentResult) {
 				if (attachmentResult == null) {
-					// The fresh LiveData was deliberately set to null
+					// The fresh LiveData was deliberately set to null.
-					// when the AttachmentCreator reset its state.
+					// This means that we can stop observing it.
-					// This means that we can simply stop observing it.
 					result.removeObserver(this);
 				} else {
 					boolean noError = onNewAttachmentItemResults(
@@ -282,7 +270,6 @@ public class TextAttachmentController extends TextSendController
 		onCancel();
 	}
 
-	@UiThread
 	@Override
 	public void onCancel() {
 		textInput.clearText();

briar-api/src/main/java/org/briarproject/briar/api/test/TestAvatarCreator.java

@@ -6,6 +6,9 @@ import java.io.InputStream;
 import javax.annotation.Nullable;
 
 public interface TestAvatarCreator {
+
+	String MIME_TYPE = "image/webp";
+
 	@Nullable
 	InputStream getAvatarInputStream() throws IOException;
 }

briar-core/src/main/java/org/briarproject/briar/test/TestDataCreatorImpl.java

@@ -316,7 +316,7 @@ public class TestDataCreatorImpl implements TestDataCreator {
 		Message m;
 		try {
 			m = avatarMessageEncoder.encodeUpdateMessage(groupId, 0,
-					"image/jpeg", is).getFirst();
+					TestAvatarCreator.MIME_TYPE, is).getFirst();
 		} catch (IOException e) {
 			throw new DbException(e);
 		}

build.gradle

@@ -4,7 +4,6 @@ allprojects {
 	repositories {
 		jcenter()
 		mavenLocal()
-		mavenCentral()
 		google()
 		maven { url "https://jitpack.io" }
 	}