mirror of
https://github.com/oxen-io/session-android.git
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0dd36c64a4
1) Move the attachment structures into the encrypted message body.
2) Encrypt attachments with symmetric keys transmitted in the
encryptd attachment pointer structure.
3) Correctly handle asynchronous decryption and categorization of
encrypted push messages.
TODO: Correct notification process and network/interruption
retries.
130 lines
3.6 KiB
Java
130 lines
3.6 KiB
Java
/**
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* Copyright (C) 2011 Whisper Systems
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.thoughtcrime.securesms.mms;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStream;
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import org.whispersystems.textsecure.crypto.MasterSecret;
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import org.thoughtcrime.securesms.database.DatabaseFactory;
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import org.thoughtcrime.securesms.providers.PartProvider;
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import android.content.ContentUris;
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import android.content.Context;
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import android.graphics.Bitmap;
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import android.graphics.drawable.Drawable;
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import android.net.Uri;
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import android.util.Log;
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import android.widget.ImageView;
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import ws.com.google.android.mms.pdu.PduPart;
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public abstract class Slide {
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protected static final int MAX_MESSAGE_SIZE = 1048576;
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protected final PduPart part;
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protected final Context context;
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protected MasterSecret masterSecret;
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public Slide(Context context, PduPart part) {
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this.part = part;
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this.context = context;
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}
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public Slide(Context context, MasterSecret masterSecret, PduPart part) {
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this(context, part);
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this.masterSecret = masterSecret;
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}
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public InputStream getPartDataInputStream() throws FileNotFoundException {
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Uri partUri = part.getDataUri();
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Log.w("Slide", "Loading Part URI: " + partUri);
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if (PartProvider.isAuthority(partUri))
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return DatabaseFactory.getEncryptingPartDatabase(context, masterSecret).getPartStream(ContentUris.parseId(partUri));
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else
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return context.getContentResolver().openInputStream(partUri);
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}
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protected static long getMediaSize(Context context, Uri uri) throws IOException {
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InputStream in = context.getContentResolver().openInputStream(uri);
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long size = 0;
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byte[] buffer = new byte[512];
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int read;
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while ((read = in.read(buffer)) != -1)
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size += read;
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return size;
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}
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protected byte[] getPartData() {
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if (part.getData() != null)
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return part.getData();
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long partId = ContentUris.parseId(part.getDataUri());
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return DatabaseFactory.getEncryptingPartDatabase(context, masterSecret).getPart(partId, true).getData();
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}
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public String getContentType() {
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return new String(part.getContentType());
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}
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public Uri getUri() {
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return part.getDataUri();
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}
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public Drawable getThumbnail(int maxWidth, int maxHeight) {
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throw new AssertionError("getThumbnail() called on non-thumbnail producing slide!");
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}
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public void setThumbnailOn(ImageView imageView) {
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imageView.setImageDrawable(getThumbnail(imageView.getWidth(), imageView.getHeight()));
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}
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public boolean hasImage() {
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return false;
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}
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public boolean hasVideo() {
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return false;
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}
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public boolean hasAudio() {
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return false;
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}
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public Bitmap getImage() {
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throw new AssertionError("getImage() called on non-image slide!");
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}
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public boolean hasText() {
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return false;
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}
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public String getText() {
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throw new AssertionError("getText() called on non-text slide!");
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}
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public PduPart getPart() {
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return part;
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}
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}
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