55 lines
1.8 KiB
Java
55 lines
1.8 KiB
Java
package org.thoughtcrime.securesms.glide.cache;
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import android.graphics.Bitmap;
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import android.support.annotation.NonNull;
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import android.support.annotation.Nullable;
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import org.thoughtcrime.securesms.logging.Log;
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import com.bumptech.glide.load.Options;
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import com.bumptech.glide.load.ResourceDecoder;
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import com.bumptech.glide.load.engine.Resource;
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import com.bumptech.glide.load.resource.bitmap.StreamBitmapDecoder;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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public class EncryptedBitmapCacheDecoder extends EncryptedCoder implements ResourceDecoder<File, Bitmap> {
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private static final String TAG = EncryptedBitmapCacheDecoder.class.getSimpleName();
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private final StreamBitmapDecoder streamBitmapDecoder;
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private final byte[] secret;
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public EncryptedBitmapCacheDecoder(@NonNull byte[] secret, @NonNull StreamBitmapDecoder streamBitmapDecoder) {
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this.secret = secret;
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this.streamBitmapDecoder = streamBitmapDecoder;
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}
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@Override
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public boolean handles(@NonNull File source, @NonNull Options options)
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throws IOException
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{
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Log.i(TAG, "Checking item for encrypted Bitmap cache decoder: " + source.toString());
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try (InputStream inputStream = createEncryptedInputStream(secret, source)) {
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return streamBitmapDecoder.handles(inputStream, options);
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} catch (IOException e) {
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Log.w(TAG, e);
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return false;
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}
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}
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@Nullable
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@Override
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public Resource<Bitmap> decode(@NonNull File source, int width, int height, @NonNull Options options)
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throws IOException
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{
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Log.i(TAG, "Encrypted Bitmap cache decoder running: " + source.toString());
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try (InputStream inputStream = createEncryptedInputStream(secret, source)) {
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return streamBitmapDecoder.decode(inputStream, width, height, options);
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}
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}
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}
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