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package org.thoughtcrime.securesms.mms;
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import android.content.Context;
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import android.net.Uri;
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import android.util.Log;
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import android.util.Pair;
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import org.thoughtcrime.securesms.crypto.MasterSecret;
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import org.thoughtcrime.securesms.util.BitmapDecodingException;
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import org.thoughtcrime.securesms.util.BitmapUtil;
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import org.thoughtcrime.securesms.util.MediaUtil;
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import java.io.IOException;
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import java.io.InputStream;
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import ws.com.google.android.mms.pdu.PduPart;
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public abstract class MediaConstraints {
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private static final String TAG = MediaConstraints.class.getSimpleName();
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public static MediaConstraints MMS_CONSTRAINTS = new MmsMediaConstraints();
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public static MediaConstraints PUSH_CONSTRAINTS = new PushMediaConstraints();
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public abstract int getImageMaxWidth();
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public abstract int getImageMaxHeight();
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public abstract int getImageMaxSize();
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public abstract int getVideoMaxSize();
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public abstract int getAudioMaxSize();
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public boolean isSatisfied(Context context, MasterSecret masterSecret, PduPart part) {
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try {
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return (MediaUtil.isImage(part) && part.getDataSize() <= getImageMaxSize() && isWithinBounds(context, masterSecret, part.getDataUri())) ||
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(MediaUtil.isAudio(part) && part.getDataSize() <= getAudioMaxSize()) ||
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(MediaUtil.isVideo(part) && part.getDataSize() <= getVideoMaxSize()) ||
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(!MediaUtil.isImage(part) && !MediaUtil.isAudio(part) && !MediaUtil.isVideo(part));
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} catch (IOException ioe) {
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Log.w(TAG, "Failed to determine if media's constraints are satisfied.", ioe);
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return false;
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}
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}
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public boolean isWithinBounds(Context context, MasterSecret masterSecret, Uri uri) throws IOException {
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InputStream is = PartAuthority.getPartStream(context, masterSecret, uri);
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Pair<Integer, Integer> dimensions = BitmapUtil.getDimensions(is);
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return dimensions.first > 0 && dimensions.first <= getImageMaxWidth() &&
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dimensions.second > 0 && dimensions.second <= getImageMaxHeight();
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}
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public boolean canResize(PduPart part) {
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return part != null && MediaUtil.isImage(part);
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}
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public byte[] getResizedMedia(Context context, MasterSecret masterSecret, PduPart part)
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throws IOException
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{
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if (!canResize(part) || part.getDataUri() == null) {
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throw new UnsupportedOperationException("Cannot resize this content type");
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}
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try {
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return BitmapUtil.createScaledBytes(context, masterSecret, part.getDataUri(),
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getImageMaxWidth(),
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getImageMaxHeight(),
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getImageMaxSize());
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} catch (BitmapDecodingException bde) {
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throw new IOException(bde);
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}
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}
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}
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package org.thoughtcrime.securesms.mms;
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public class MmsMediaConstraints extends MediaConstraints {
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private static final int MAX_IMAGE_DIMEN = 1280;
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public static final int MAX_MESSAGE_SIZE = 280 * 1024;
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@Override
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public int getImageMaxWidth() {
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return MAX_IMAGE_DIMEN;
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}
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@Override
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public int getImageMaxHeight() {
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return MAX_IMAGE_DIMEN;
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}
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@Override
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public int getImageMaxSize() {
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return MAX_MESSAGE_SIZE;
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}
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@Override
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public int getVideoMaxSize() {
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return MAX_MESSAGE_SIZE;
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}
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@Override
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public int getAudioMaxSize() {
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return MAX_MESSAGE_SIZE;
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}
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}
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@ -0,0 +1,32 @@
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package org.thoughtcrime.securesms.mms;
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public class PushMediaConstraints extends MediaConstraints {
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private static final int MAX_IMAGE_DIMEN = 1280;
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private static final int KB = 1024;
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private static final int MB = 1024 * KB;
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@Override
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public int getImageMaxWidth() {
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return MAX_IMAGE_DIMEN;
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}
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@Override
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public int getImageMaxHeight() {
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return MAX_IMAGE_DIMEN;
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}
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@Override
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public int getImageMaxSize() {
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return 300 * KB;
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}
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@Override
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public int getVideoMaxSize() {
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return MmsMediaConstraints.MAX_MESSAGE_SIZE;
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}
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@Override
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public int getAudioMaxSize() {
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return MmsMediaConstraints.MAX_MESSAGE_SIZE;
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}
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}
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