106 lines
4.3 KiB
Java
106 lines
4.3 KiB
Java
/**
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* Copyright (C) 2014 Open 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.whispersystems.textsecure.api;
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import org.whispersystems.libaxolotl.InvalidMessageException;
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import org.whispersystems.textsecure.api.crypto.AttachmentCipherInputStream;
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import org.whispersystems.textsecure.api.messages.TextSecureAttachmentPointer;
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import org.whispersystems.textsecure.api.push.TrustStore;
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import org.whispersystems.textsecure.api.util.CredentialsProvider;
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import org.whispersystems.textsecure.internal.push.PushServiceSocket;
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import org.whispersystems.textsecure.internal.util.StaticCredentialsProvider;
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import org.whispersystems.textsecure.internal.websocket.WebSocketConnection;
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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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/**
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* The primary interface for receiving TextSecure messages.
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*
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* @author Moxie Marlinspike
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*/
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public class TextSecureMessageReceiver {
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private final PushServiceSocket socket;
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private final TrustStore trustStore;
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private final String url;
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private final CredentialsProvider credentialsProvider;
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/**
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* Construct a TextSecureMessageReceiver.
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*
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* @param url The URL of the TextSecure server.
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* @param trustStore The {@link org.whispersystems.textsecure.api.push.TrustStore} containing
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* the server's TLS signing certificate.
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* @param user The TextSecure user's username (eg. phone number).
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* @param password The TextSecure user's password.
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* @param signalingKey The 52 byte signaling key assigned to this user at registration.
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*/
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public TextSecureMessageReceiver(String url, TrustStore trustStore,
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String user, String password, String signalingKey)
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{
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this(url, trustStore, new StaticCredentialsProvider(user, password, signalingKey));
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}
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/**
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* Construct a TextSecureMessageReceiver.
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*
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* @param url The URL of the TextSecure server.
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* @param trustStore The {@link org.whispersystems.textsecure.api.push.TrustStore} containing
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* the server's TLS signing certificate.
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* @param credentials The TextSecure user's credentials.
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*/
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public TextSecureMessageReceiver(String url, TrustStore trustStore, CredentialsProvider credentials) {
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this.url = url;
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this.trustStore = trustStore;
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this.credentialsProvider = credentials;
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this.socket = new PushServiceSocket(url, trustStore, credentials);
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}
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/**
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* Retrieves a TextSecure attachment.
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*
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* @param pointer The {@link org.whispersystems.textsecure.api.messages.TextSecureAttachmentPointer}
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* received in a {@link org.whispersystems.textsecure.api.messages.TextSecureMessage}.
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* @param destination The download destination for this attachment.
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*
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* @return An InputStream that streams the plaintext attachment contents.
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* @throws IOException
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* @throws InvalidMessageException
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*/
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public InputStream retrieveAttachment(TextSecureAttachmentPointer pointer, File destination)
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throws IOException, InvalidMessageException
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{
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socket.retrieveAttachment(pointer.getRelay().orNull(), pointer.getId(), destination);
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return new AttachmentCipherInputStream(destination, pointer.getKey());
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}
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/**
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* Creates a pipe for receiving TextSecure messages.
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*
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* Callers must call {@link TextSecureMessagePipe#shutdown()} when finished with the pipe.
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*
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* @return A TextSecureMessagePipe for receiving TextSecure messages.
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*/
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public TextSecureMessagePipe createMessagePipe() {
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WebSocketConnection webSocket = new WebSocketConnection(url, trustStore, credentialsProvider);
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return new TextSecureMessagePipe(webSocket, credentialsProvider);
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}
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}
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