459 lines
18 KiB
Java
459 lines
18 KiB
Java
package eu.siacs.conversations.http;
|
|
|
|
import android.util.Log;
|
|
|
|
import androidx.annotation.Nullable;
|
|
|
|
import com.google.common.base.Strings;
|
|
import com.google.common.io.ByteStreams;
|
|
import com.google.common.primitives.Longs;
|
|
|
|
import java.io.FileInputStream;
|
|
import java.io.IOException;
|
|
import java.io.InputStream;
|
|
import java.io.OutputStream;
|
|
import java.util.Locale;
|
|
import java.util.concurrent.CancellationException;
|
|
|
|
import javax.net.ssl.SSLHandshakeException;
|
|
|
|
import eu.siacs.conversations.Config;
|
|
import eu.siacs.conversations.R;
|
|
import eu.siacs.conversations.entities.DownloadableFile;
|
|
import eu.siacs.conversations.entities.Message;
|
|
import eu.siacs.conversations.entities.Transferable;
|
|
import eu.siacs.conversations.persistance.FileBackend;
|
|
import eu.siacs.conversations.services.AbstractConnectionManager;
|
|
import eu.siacs.conversations.services.XmppConnectionService;
|
|
import eu.siacs.conversations.utils.CryptoHelper;
|
|
import eu.siacs.conversations.utils.FileWriterException;
|
|
import eu.siacs.conversations.utils.MimeUtils;
|
|
import okhttp3.Call;
|
|
import okhttp3.HttpUrl;
|
|
import okhttp3.OkHttpClient;
|
|
import okhttp3.Request;
|
|
import okhttp3.Response;
|
|
|
|
import static eu.siacs.conversations.http.HttpConnectionManager.EXECUTOR;
|
|
|
|
public class HttpDownloadConnection implements Transferable {
|
|
|
|
private final Message message;
|
|
private final boolean mUseTor;
|
|
private final HttpConnectionManager mHttpConnectionManager;
|
|
private final XmppConnectionService mXmppConnectionService;
|
|
private HttpUrl mUrl;
|
|
private DownloadableFile file;
|
|
private int mStatus = Transferable.STATUS_UNKNOWN;
|
|
private boolean acceptedAutomatically = false;
|
|
private int mProgress = 0;
|
|
private boolean canceled = false;
|
|
private Call mostRecentCall;
|
|
|
|
HttpDownloadConnection(Message message, HttpConnectionManager manager) {
|
|
this.message = message;
|
|
this.mHttpConnectionManager = manager;
|
|
this.mXmppConnectionService = manager.getXmppConnectionService();
|
|
this.mUseTor = mXmppConnectionService.useTorToConnect();
|
|
}
|
|
|
|
@Override
|
|
public boolean start() {
|
|
if (mXmppConnectionService.hasInternetConnection()) {
|
|
if (this.mStatus == STATUS_OFFER_CHECK_FILESIZE) {
|
|
checkFileSize(true);
|
|
} else {
|
|
download(true);
|
|
}
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public void init(boolean interactive) {
|
|
if (message.isDeleted()) {
|
|
if (message.getType() == Message.TYPE_PRIVATE_FILE) {
|
|
message.setType(Message.TYPE_PRIVATE);
|
|
} else if (message.isFileOrImage()) {
|
|
message.setType(Message.TYPE_TEXT);
|
|
}
|
|
message.setOob(true);
|
|
message.setDeleted(false);
|
|
mXmppConnectionService.updateMessage(message);
|
|
}
|
|
this.message.setTransferable(this);
|
|
try {
|
|
final Message.FileParams fileParams = message.getFileParams();
|
|
if (message.hasFileOnRemoteHost()) {
|
|
mUrl = AesGcmURL.of(fileParams.url);
|
|
} else if (message.isOOb() && fileParams.url != null && fileParams.size > 0) {
|
|
mUrl = AesGcmURL.of(fileParams.url);
|
|
} else {
|
|
mUrl = AesGcmURL.of(message.getBody().split("\n")[0]);
|
|
}
|
|
final AbstractConnectionManager.Extension extension = AbstractConnectionManager.Extension.of(mUrl.encodedPath());
|
|
if (VALID_CRYPTO_EXTENSIONS.contains(extension.main)) {
|
|
this.message.setEncryption(Message.ENCRYPTION_PGP);
|
|
} else if (message.getEncryption() != Message.ENCRYPTION_OTR
|
|
&& message.getEncryption() != Message.ENCRYPTION_AXOLOTL) {
|
|
this.message.setEncryption(Message.ENCRYPTION_NONE);
|
|
}
|
|
final String ext = extension.getExtension();
|
|
if (ext != null) {
|
|
message.setRelativeFilePath(String.format("%s.%s", message.getUuid(), ext));
|
|
} else if (Strings.isNullOrEmpty(message.getRelativeFilePath())) {
|
|
message.setRelativeFilePath(message.getUuid());
|
|
}
|
|
setupFile();
|
|
if (this.message.getEncryption() == Message.ENCRYPTION_AXOLOTL && this.file.getKey() == null) {
|
|
this.message.setEncryption(Message.ENCRYPTION_NONE);
|
|
}
|
|
//TODO add auth tag size to knownFileSize
|
|
final long knownFileSize = message.getFileParams().size;
|
|
if (knownFileSize > 0 && interactive) {
|
|
this.file.setExpectedSize(knownFileSize);
|
|
download(true);
|
|
} else {
|
|
checkFileSize(interactive);
|
|
}
|
|
} catch (final IllegalArgumentException e) {
|
|
this.cancel();
|
|
}
|
|
}
|
|
|
|
private void setupFile() {
|
|
final String reference = mUrl.fragment();
|
|
if (reference != null && AesGcmURL.IV_KEY.matcher(reference).matches()) {
|
|
this.file = new DownloadableFile(mXmppConnectionService.getCacheDir().getAbsolutePath() + "/" + message.getUuid());
|
|
this.file.setKeyAndIv(CryptoHelper.hexToBytes(reference));
|
|
Log.d(Config.LOGTAG, "create temporary OMEMO encrypted file: " + this.file.getAbsolutePath() + "(" + message.getMimeType() + ")");
|
|
} else {
|
|
this.file = mXmppConnectionService.getFileBackend().getFile(message, false);
|
|
}
|
|
}
|
|
|
|
private void download(final boolean interactive) {
|
|
EXECUTOR.execute(new FileDownloader(interactive));
|
|
}
|
|
|
|
private void checkFileSize(final boolean interactive) {
|
|
EXECUTOR.execute(new FileSizeChecker(interactive));
|
|
}
|
|
|
|
@Override
|
|
public void cancel() {
|
|
this.canceled = true;
|
|
final Call call = this.mostRecentCall;
|
|
if (call != null && !call.isCanceled()) {
|
|
call.cancel();
|
|
}
|
|
mHttpConnectionManager.finishConnection(this);
|
|
message.setTransferable(null);
|
|
if (message.isFileOrImage()) {
|
|
message.setDeleted(true);
|
|
}
|
|
mHttpConnectionManager.updateConversationUi(true);
|
|
}
|
|
|
|
private void decryptFile() throws IOException {
|
|
final DownloadableFile outputFile = mXmppConnectionService.getFileBackend().getFile(message, true);
|
|
|
|
if (outputFile.getParentFile().mkdirs()) {
|
|
Log.d(Config.LOGTAG, "created parent directories for " + outputFile.getAbsolutePath());
|
|
}
|
|
|
|
if (!outputFile.createNewFile()) {
|
|
Log.w(Config.LOGTAG, "unable to create output file " + outputFile.getAbsolutePath());
|
|
}
|
|
|
|
final InputStream is = new FileInputStream(this.file);
|
|
|
|
outputFile.setKey(this.file.getKey());
|
|
outputFile.setIv(this.file.getIv());
|
|
final OutputStream os = AbstractConnectionManager.createOutputStream(outputFile, false, true);
|
|
|
|
ByteStreams.copy(is, os);
|
|
|
|
FileBackend.close(is);
|
|
FileBackend.close(os);
|
|
|
|
if (!file.delete()) {
|
|
Log.w(Config.LOGTAG, "unable to delete temporary OMEMO encrypted file " + file.getAbsolutePath());
|
|
}
|
|
}
|
|
|
|
private void finish() {
|
|
message.setTransferable(null);
|
|
mHttpConnectionManager.finishConnection(this);
|
|
boolean notify = acceptedAutomatically && !message.isRead();
|
|
if (message.getEncryption() == Message.ENCRYPTION_PGP) {
|
|
notify = message.getConversation().getAccount().getPgpDecryptionService().decrypt(message, notify);
|
|
}
|
|
mHttpConnectionManager.updateConversationUi(true);
|
|
final boolean notifyAfterScan = notify;
|
|
final DownloadableFile file = mXmppConnectionService.getFileBackend().getFile(message, true);
|
|
mXmppConnectionService.getFileBackend().updateMediaScanner(file, () -> {
|
|
if (notifyAfterScan) {
|
|
mXmppConnectionService.getNotificationService().push(message);
|
|
}
|
|
});
|
|
}
|
|
|
|
private void decryptIfNeeded() throws IOException {
|
|
if (file.getKey() != null && file.getIv() != null) {
|
|
decryptFile();
|
|
}
|
|
}
|
|
|
|
private void changeStatus(int status) {
|
|
this.mStatus = status;
|
|
mHttpConnectionManager.updateConversationUi(true);
|
|
}
|
|
|
|
private void showToastForException(Exception e) {
|
|
if (e instanceof java.net.UnknownHostException) {
|
|
mXmppConnectionService.showErrorToastInUi(R.string.download_failed_server_not_found);
|
|
} else if (e instanceof java.net.ConnectException) {
|
|
mXmppConnectionService.showErrorToastInUi(R.string.download_failed_could_not_connect);
|
|
} else if (e instanceof FileWriterException) {
|
|
mXmppConnectionService.showErrorToastInUi(R.string.download_failed_could_not_write_file);
|
|
} else if (!(e instanceof CancellationException)) {
|
|
mXmppConnectionService.showErrorToastInUi(R.string.download_failed_file_not_found);
|
|
}
|
|
}
|
|
|
|
private void updateProgress(long i) {
|
|
this.mProgress = (int) i;
|
|
mHttpConnectionManager.updateConversationUi(false);
|
|
}
|
|
|
|
@Override
|
|
public int getStatus() {
|
|
return this.mStatus;
|
|
}
|
|
|
|
@Override
|
|
public long getFileSize() {
|
|
if (this.file != null) {
|
|
return this.file.getExpectedSize();
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public int getProgress() {
|
|
return this.mProgress;
|
|
}
|
|
|
|
public Message getMessage() {
|
|
return message;
|
|
}
|
|
|
|
private class FileSizeChecker implements Runnable {
|
|
|
|
private final boolean interactive;
|
|
|
|
FileSizeChecker(boolean interactive) {
|
|
this.interactive = interactive;
|
|
}
|
|
|
|
|
|
@Override
|
|
public void run() {
|
|
check();
|
|
}
|
|
|
|
private void retrieveFailed(@Nullable Exception e) {
|
|
changeStatus(STATUS_OFFER_CHECK_FILESIZE);
|
|
if (interactive) {
|
|
if (e != null) {
|
|
showToastForException(e);
|
|
}
|
|
} else {
|
|
HttpDownloadConnection.this.acceptedAutomatically = false;
|
|
HttpDownloadConnection.this.mXmppConnectionService.getNotificationService().push(message);
|
|
}
|
|
cancel();
|
|
}
|
|
|
|
private void check() {
|
|
long size;
|
|
try {
|
|
size = retrieveFileSize();
|
|
} catch (Exception e) {
|
|
Log.d(Config.LOGTAG, "io exception in http file size checker: " + e.getMessage());
|
|
retrieveFailed(e);
|
|
return;
|
|
}
|
|
final Message.FileParams fileParams = message.getFileParams();
|
|
FileBackend.updateFileParams(message, fileParams.url, size);
|
|
message.setOob(true);
|
|
mXmppConnectionService.databaseBackend.updateMessage(message, true);
|
|
file.setExpectedSize(size);
|
|
message.resetFileParams();
|
|
if (mHttpConnectionManager.hasStoragePermission()
|
|
&& size <= mHttpConnectionManager.getAutoAcceptFileSize()
|
|
&& mXmppConnectionService.isDataSaverDisabled()) {
|
|
HttpDownloadConnection.this.acceptedAutomatically = true;
|
|
download(interactive);
|
|
} else {
|
|
changeStatus(STATUS_OFFER);
|
|
HttpDownloadConnection.this.acceptedAutomatically = false;
|
|
HttpDownloadConnection.this.mXmppConnectionService.getNotificationService().push(message);
|
|
}
|
|
}
|
|
|
|
private long retrieveFileSize() throws IOException {
|
|
final OkHttpClient client = mHttpConnectionManager.buildHttpClient(
|
|
mUrl,
|
|
message.getConversation().getAccount(),
|
|
interactive
|
|
);
|
|
final Request request = new Request.Builder()
|
|
.url(URL.stripFragment(mUrl))
|
|
.head()
|
|
.build();
|
|
mostRecentCall = client.newCall(request);
|
|
try {
|
|
final Response response = mostRecentCall.execute();
|
|
final String contentLength = response.header("Content-Length");
|
|
final String contentType = response.header("Content-Type");
|
|
final AbstractConnectionManager.Extension extension = AbstractConnectionManager.Extension.of(mUrl.encodedPath());
|
|
if (Strings.isNullOrEmpty(extension.getExtension()) && contentType != null) {
|
|
final String fileExtension = MimeUtils.guessExtensionFromMimeType(contentType);
|
|
if (fileExtension != null) {
|
|
message.setRelativeFilePath(String.format("%s.%s", message.getUuid(), fileExtension));
|
|
Log.d(Config.LOGTAG, "rewriting name after not finding extension in url but in content type");
|
|
setupFile();
|
|
}
|
|
}
|
|
if (Strings.isNullOrEmpty(contentLength)) {
|
|
throw new IOException("no content-length found in HEAD response");
|
|
}
|
|
return Long.parseLong(contentLength, 10);
|
|
} catch (IOException e) {
|
|
Log.d(Config.LOGTAG, "io exception during HEAD " + e.getMessage());
|
|
throw e;
|
|
} catch (NumberFormatException e) {
|
|
throw new IOException();
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
private class FileDownloader implements Runnable {
|
|
|
|
private final boolean interactive;
|
|
|
|
public FileDownloader(boolean interactive) {
|
|
this.interactive = interactive;
|
|
}
|
|
|
|
@Override
|
|
public void run() {
|
|
try {
|
|
changeStatus(STATUS_DOWNLOADING);
|
|
download();
|
|
decryptIfNeeded();
|
|
updateImageBounds();
|
|
finish();
|
|
} catch (final SSLHandshakeException e) {
|
|
changeStatus(STATUS_OFFER);
|
|
} catch (final Exception e) {
|
|
Log.d(Config.LOGTAG,"problem downloading",e);
|
|
//TODO do not show toast for cancelled stuff
|
|
if (interactive) {
|
|
showToastForException(e);
|
|
} else {
|
|
HttpDownloadConnection.this.acceptedAutomatically = false;
|
|
HttpDownloadConnection.this.mXmppConnectionService.getNotificationService().push(message);
|
|
}
|
|
cancel();
|
|
}
|
|
}
|
|
|
|
private void download() throws Exception {
|
|
final OkHttpClient client = mHttpConnectionManager.buildHttpClient(
|
|
mUrl,
|
|
message.getConversation().getAccount(),
|
|
interactive
|
|
);
|
|
|
|
final Request.Builder requestBuilder = new Request.Builder().url(URL.stripFragment(mUrl));
|
|
|
|
final long expected = file.getExpectedSize();
|
|
final boolean tryResume = file.exists() && file.getSize() > 0 && file.getSize() < expected;
|
|
final long resumeSize;
|
|
if (tryResume) {
|
|
resumeSize = file.getSize();
|
|
Log.d(Config.LOGTAG, "http download trying resume after " + resumeSize + " of " + expected);
|
|
requestBuilder.addHeader("Range", String.format(Locale.ENGLISH, "bytes=%d-", resumeSize));
|
|
} else {
|
|
resumeSize = 0;
|
|
}
|
|
final Request request = requestBuilder.build();
|
|
mostRecentCall = client.newCall(request);
|
|
final Response response = mostRecentCall.execute();
|
|
final int code = response.code();
|
|
if (code >= 200 && code <= 299) {
|
|
final String contentRange = response.header("Content-Range");
|
|
final boolean serverResumed = tryResume && contentRange != null && contentRange.startsWith("bytes " + resumeSize + "-");
|
|
final InputStream inputStream = response.body().byteStream();
|
|
final OutputStream outputStream;
|
|
long transmitted = 0;
|
|
if (tryResume && serverResumed) {
|
|
Log.d(Config.LOGTAG, "server resumed");
|
|
transmitted = file.getSize();
|
|
updateProgress(Math.round(((double) transmitted / expected) * 100));
|
|
outputStream = AbstractConnectionManager.createOutputStream(file, true, false);
|
|
} else {
|
|
final String contentLength = response.header("Content-Length");
|
|
final long size = Strings.isNullOrEmpty(contentLength) ? 0 : Longs.tryParse(contentLength);
|
|
if (expected != size) {
|
|
Log.d(Config.LOGTAG, "content-length reported on GET (" + size + ") did not match Content-Length reported on HEAD (" + expected + ")");
|
|
}
|
|
file.getParentFile().mkdirs();
|
|
if (!file.exists() && !file.createNewFile()) {
|
|
throw new FileWriterException();
|
|
}
|
|
outputStream = AbstractConnectionManager.createOutputStream(file, false, false);
|
|
}
|
|
int count;
|
|
byte[] buffer = new byte[4096];
|
|
while ((count = inputStream.read(buffer)) != -1) {
|
|
transmitted += count;
|
|
try {
|
|
outputStream.write(buffer, 0, count);
|
|
} catch (IOException e) {
|
|
throw new FileWriterException();
|
|
}
|
|
updateProgress(Math.round(((double) transmitted / expected) * 100));
|
|
if (canceled) {
|
|
throw new CancellationException();
|
|
}
|
|
}
|
|
outputStream.flush();
|
|
} else {
|
|
throw new IOException(String.format(Locale.ENGLISH, "HTTP Status code was %d", code));
|
|
}
|
|
}
|
|
|
|
private void updateImageBounds() {
|
|
final boolean privateMessage = message.isPrivateMessage();
|
|
message.setType(privateMessage ? Message.TYPE_PRIVATE_FILE : Message.TYPE_FILE);
|
|
final String url;
|
|
final String ref = mUrl.fragment();
|
|
if (ref != null && AesGcmURL.IV_KEY.matcher(ref).matches()) {
|
|
url = AesGcmURL.toAesGcmUrl(mUrl);
|
|
} else {
|
|
url = mUrl.toString();
|
|
}
|
|
mXmppConnectionService.getFileBackend().updateFileParams(message, url);
|
|
mXmppConnectionService.updateMessage(message);
|
|
}
|
|
|
|
}
|
|
}
|