b8f663b69c
1) Move all the crypto classes from securesms.crypto. 2) Move all the crypto storage from securesms.database.keys 3) Replace the old imported BC code with spongycastle.
99 lines
3.1 KiB
Java
99 lines
3.1 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 android.content.Context;
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import android.net.Uri;
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import android.util.Log;
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import org.whispersystems.textsecure.crypto.MasterSecret;
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import org.thoughtcrime.securesms.util.LRUCache;
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import java.io.UnsupportedEncodingException;
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import java.lang.ref.SoftReference;
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import java.util.Collections;
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import java.util.Map;
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import ws.com.google.android.mms.ContentType;
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import ws.com.google.android.mms.pdu.CharacterSets;
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import ws.com.google.android.mms.pdu.PduPart;
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public class TextSlide extends Slide {
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private static final int MAX_CACHE_SIZE = 10;
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private static final Map<Uri, SoftReference<String>> textCache =
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Collections.synchronizedMap(new LRUCache<Uri, SoftReference<String>>(MAX_CACHE_SIZE));
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public TextSlide(Context context, MasterSecret masterSecret, PduPart part) {
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super(context, masterSecret, part);
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}
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public TextSlide(Context context, String message) {
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super(context, getPartForMessage(message));
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}
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@Override
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public boolean hasText() {
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return true;
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}
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@Override
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public String getText() {
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try {
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SoftReference<String> reference = textCache.get(part.getDataUri());
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if (reference != null) {
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String cachedText = reference.get();
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if (cachedText != null) {
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return cachedText;
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}
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}
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String text = new String(getPartData(), CharacterSets.getMimeName(part.getCharset()));
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textCache.put(part.getDataUri(), new SoftReference<String>(text));
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return text;
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} catch (UnsupportedEncodingException uee) {
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Log.w("TextSlide", uee);
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return new String(getPartData());
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}
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}
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private static PduPart getPartForMessage(String message) {
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PduPart part = new PduPart();
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try {
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part.setData(message.getBytes(CharacterSets.MIMENAME_ISO_8859_1));
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if (part.getData().length == 0)
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throw new AssertionError("Part data should not be zero!");
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} catch (UnsupportedEncodingException e) {
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Log.w("TextSlide", "ISO_8859_1 must be supported!", e);
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part.setData("Unsupported character set!".getBytes());
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}
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part.setCharset(CharacterSets.ISO_8859_1);
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part.setContentType(ContentType.TEXT_PLAIN.getBytes());
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part.setContentId((System.currentTimeMillis()+"").getBytes());
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part.setName(("Text"+System.currentTimeMillis()).getBytes());
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return part;
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}
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}
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