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package de.pixart.messenger.http;
import android.os.PowerManager;
import android.util.Log;
import android.util.Pair;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import javax.net.ssl.HttpsURLConnection;
import de.pixart.messenger.Config;
import de.pixart.messenger.entities.Account;
import de.pixart.messenger.entities.DownloadableFile;
import de.pixart.messenger.entities.Message;
import de.pixart.messenger.entities.Transferable;
import de.pixart.messenger.parser.IqParser;
import de.pixart.messenger.persistance.FileBackend;
import de.pixart.messenger.services.AbstractConnectionManager;
import de.pixart.messenger.services.XmppConnectionService;
import de.pixart.messenger.utils.CryptoHelper;
import de.pixart.messenger.utils.Namespace;
import de.pixart.messenger.xml.Element;
import de.pixart.messenger.xmpp.stanzas.IqPacket;
import rocks.xmpp.addr.Jid;
public class HttpUploadConnection implements Transferable {
private static final List<String> WHITE_LISTED_HEADERS = Arrays.asList(
"Authorization",
"Cookie",
"Expires"
);
private HttpConnectionManager mHttpConnectionManager;
private XmppConnectionService mXmppConnectionService;
private boolean canceled = false;
private boolean delayed = false;
private DownloadableFile file;
private Message message;
private String mime;
private URL mGetUrl;
private URL mPutUrl;
private HashMap<String,String> mPutHeaders;
private boolean mUseTor = false;
private byte[] key = null;
private long transmitted = 0;
private InputStream mFileInputStream;
public HttpUploadConnection(HttpConnectionManager httpConnectionManager) {
this.mHttpConnectionManager = httpConnectionManager;
this.mXmppConnectionService = httpConnectionManager.getXmppConnectionService();
this.mUseTor = mXmppConnectionService.useTorToConnect();
}
@Override
public boolean start() {
return false;
}
@Override
public int getStatus() {
return STATUS_UPLOADING;
}
@Override
public long getFileSize() {
return file == null ? 0 : file.getExpectedSize();
}
@Override
public int getProgress() {
if (file == null) {
return 0;
}
return (int) ((((double) transmitted) / file.getExpectedSize()) * 100);
}
@Override
public void cancel() {
this.canceled = true;
}
private void fail(String errorMessage) {
mHttpConnectionManager.finishUploadConnection(this);
message.setTransferable(null);
mXmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED, errorMessage);
FileBackend.close(mFileInputStream);
}
public void init(Message message, boolean delay) {
this.message = message;
final Account account = message.getConversation().getAccount();
this.file = mXmppConnectionService.getFileBackend().getFile(message, false);
if (message.getEncryption() == Message.ENCRYPTION_PGP || message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
this.mime = "application/pgp-encrypted";
} else {
this.mime = this.file.getMimeType();
}
this.delayed = delay;
if (Config.ENCRYPT_ON_HTTP_UPLOADED
|| message.getEncryption() == Message.ENCRYPTION_AXOLOTL
|| message.getEncryption() == Message.ENCRYPTION_OTR) {
this.key = new byte[48]; // todo: change this to 44 for 12-byte IV instead of 16-byte at some point in future
mXmppConnectionService.getRNG().nextBytes(this.key);
this.file.setKeyAndIv(this.key);
}
Pair<InputStream, Integer> pair;
try {
pair = AbstractConnectionManager.createInputStream(file, true);
} catch (FileNotFoundException e) {
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": could not find file to upload - " + e.getMessage());
fail(e.getMessage());
return;
}
this.file.setExpectedSize(pair.second);
message.resetFileParams();
this.mFileInputStream = pair.first;
Jid host = account.getXmppConnection().findDiscoItemByFeature(Namespace.HTTP_UPLOAD);
IqPacket request = mXmppConnectionService.getIqGenerator().requestHttpUploadSlot(host, file, mime);
mXmppConnectionService.sendIqPacket(account, request, (a, packet) -> {
if (packet.getType() == IqPacket.TYPE.RESULT) {
Element slot = packet.findChild("slot", Namespace.HTTP_UPLOAD);
if (slot != null) {
try {
final Element put = slot.findChild("put");
final Element get = slot.findChild("get");
final String putUrl = put == null ? null : put.getAttribute("url");
final String getUrl = get == null ? null : get.getAttribute("url");
if (getUrl != null && putUrl != null) {
this.mGetUrl = new URL(getUrl);
this.mPutUrl = new URL(putUrl);
this.mPutHeaders = new HashMap<>();
for (Element child : put.getChildren()) {
if ("header".equals(child.getName())) {
final String name = child.getAttribute("name");
final String value = child.getContent();
if (WHITE_LISTED_HEADERS.contains(name) && value != null && !value.trim().contains("\n")) {
this.mPutHeaders.put(name, value.trim());
}
}
}
if (!canceled) {
new Thread(this::upload).start();
}
return;
}
} catch (MalformedURLException e) {
//fall through
}
}
}
Log.d(Config.LOGTAG, account.getJid().toString() + ": invalid response to slot request " + packet);
fail(IqParser.extractErrorMessage(packet));
});
message.setTransferable(this);
mXmppConnectionService.markMessage(message, Message.STATUS_UNSEND);
}
private void upload() {
OutputStream os = null;
HttpURLConnection connection = null;
PowerManager.WakeLock wakeLock = mHttpConnectionManager.createWakeLock("http_upload_" + message.getUuid());
try {
final int expectedFileSize = (int) file.getExpectedSize();
final int readTimeout = (expectedFileSize / 2048) + Config.SOCKET_TIMEOUT; //assuming a minimum transfer speed of 16kbit/s
wakeLock.acquire(readTimeout);
Log.d(Config.LOGTAG, "uploading to " + mPutUrl.toString() + " w/ read timeout of " + readTimeout + "s");
if (mUseTor) {
connection = (HttpURLConnection) mPutUrl.openConnection(mHttpConnectionManager.getProxy());
} else {
connection = (HttpURLConnection) mPutUrl.openConnection();
}
if (connection instanceof HttpsURLConnection) {
mHttpConnectionManager.setupTrustManager((HttpsURLConnection) connection, true);
}
connection.setRequestMethod("PUT");
connection.setFixedLengthStreamingMode(expectedFileSize);
connection.setRequestProperty("Content-Type", mime == null ? "application/octet-stream" : mime);
connection.setRequestProperty("User-Agent", mXmppConnectionService.getIqGenerator().getIdentityName());
if (mPutHeaders != null) {
for (HashMap.Entry<String, String> entry : mPutHeaders.entrySet()) {
connection.setRequestProperty(entry.getKey(), entry.getValue());
}
}
connection.setDoOutput(true);
connection.setConnectTimeout(Config.SOCKET_TIMEOUT * 1000);
connection.setReadTimeout(readTimeout * 1000);
connection.connect();
os = connection.getOutputStream();
transmitted = 0;
int count;
byte[] buffer = new byte[4096];
while (((count = mFileInputStream.read(buffer)) != -1) && !canceled) {
transmitted += count;
os.write(buffer, 0, count);
mHttpConnectionManager.updateConversationUi(false);
}
os.flush();
os.close();
mFileInputStream.close();
int code = connection.getResponseCode();
if (code == 200 || code == 201) {
Log.d(Config.LOGTAG, "finished uploading file");
if (key != null) {
mGetUrl = CryptoHelper.toAesGcmUrl(new URL(mGetUrl.toString() + "#" + CryptoHelper.bytesToHex(key)));
}
mXmppConnectionService.getFileBackend().updateFileParams(message, mGetUrl);
mXmppConnectionService.getFileBackend().updateMediaScanner(file);
message.setTransferable(null);
message.setCounterpart(message.getConversation().getJid().asBareJid());
mXmppConnectionService.resendMessage(message, delayed);
} else {
Log.d(Config.LOGTAG, "http upload failed because response code was " + code);
fail("http upload failed because response code was " + code);
}
} catch (IOException e) {
e.printStackTrace();
Log.d(Config.LOGTAG, "http upload failed " + e.getMessage());
fail(e.getMessage());
} finally {
FileBackend.close(mFileInputStream);
FileBackend.close(os);
if (connection != null) {
connection.disconnect();
}
if (wakeLock.isHeld()) {
wakeLock.release();
}
}
}
}
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