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.jid.Jid; import de.pixart.messenger.xmpp.stanzas.IqPacket; public class HttpUploadConnection implements Transferable { private static final List 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 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 pair; try { pair = AbstractConnectionManager.createInputStream(file, true); } catch (FileNotFoundException e) { Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": 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 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().toBareJid()); 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(); } } } }