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-rw-r--r--src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java43
-rw-r--r--src/main/java/eu/siacs/conversations/services/AbstractConnectionManager.java10
2 files changed, 44 insertions, 9 deletions
diff --git a/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java b/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java
index b7bea2e1..455a0b14 100644
--- a/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java
+++ b/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java
@@ -16,6 +16,7 @@ import java.net.MalformedURLException;
import java.net.Proxy;
import java.net.URL;
import java.util.Arrays;
+import java.util.concurrent.CancellationException;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLHandshakeException;
@@ -43,6 +44,7 @@ public class HttpDownloadConnection implements Transferable {
private boolean acceptedAutomatically = false;
private int mProgress = 0;
private boolean mUseTor = false;
+ private boolean canceled = false;
public HttpDownloadConnection(HttpConnectionManager manager) {
this.mHttpConnectionManager = manager;
@@ -114,7 +116,9 @@ public class HttpDownloadConnection implements Transferable {
new Thread(new FileSizeChecker(interactive)).start();
}
+ @Override
public void cancel() {
+ this.canceled = true;
mHttpConnectionManager.finishConnection(this);
if (message.isFileOrImage()) {
message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
@@ -150,7 +154,7 @@ public class HttpDownloadConnection implements Transferable {
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 {
+ } else if (!(e instanceof CancellationException)) {
mXmppConnectionService.showErrorToastInUi(R.string.download_failed_file_not_found);
}
}
@@ -244,7 +248,7 @@ public class HttpDownloadConnection implements Transferable {
finish();
} catch (SSLHandshakeException e) {
changeStatus(STATUS_OFFER);
- } catch (IOException e) {
+ } catch (Exception e) {
if (interactive) {
showToastForException(e);
}
@@ -252,7 +256,7 @@ public class HttpDownloadConnection implements Transferable {
}
}
- private void download() throws IOException {
+ private void download() throws Exception {
InputStream is = null;
PowerManager.WakeLock wakeLock = mHttpConnectionManager.createWakeLock("http_download_"+message.getUuid());
try {
@@ -267,24 +271,47 @@ public class HttpDownloadConnection implements Transferable {
mHttpConnectionManager.setupTrustManager((HttpsURLConnection) connection, interactive);
}
connection.setRequestProperty("User-Agent",mXmppConnectionService.getIqGenerator().getIdentityName());
+ final boolean tryResume = file.exists() && file.getKey() == null;
+ if (tryResume) {
+ Log.d(Config.LOGTAG,"http download trying resume");
+ long size = file.getSize();
+ connection.setRequestProperty("Range", "bytes="+size+"-");
+ }
connection.connect();
is = new BufferedInputStream(connection.getInputStream());
- file.getParentFile().mkdirs();
- file.createNewFile();
- os = AbstractConnectionManager.createOutputStream(file, true);
+ boolean serverResumed = "bytes".equals(connection.getHeaderField("Accept-Ranges"));
long transmitted = 0;
long expected = file.getExpectedSize();
+ if (tryResume && serverResumed) {
+ Log.d(Config.LOGTAG,"server resumed");
+ transmitted = file.getSize();
+ updateProgress((int) ((((double) transmitted) / expected) * 100));
+ os = AbstractConnectionManager.createAppendedOutputStream(file);
+ } else {
+ file.getParentFile().mkdirs();
+ file.createNewFile();
+ os = AbstractConnectionManager.createOutputStream(file, true);
+ }
int count = -1;
byte[] buffer = new byte[1024];
while ((count = is.read(buffer)) != -1) {
transmitted += count;
os.write(buffer, 0, count);
updateProgress((int) ((((double) transmitted) / expected) * 100));
+ if (canceled) {
+ throw new CancellationException();
+ }
}
- os.flush();
- } catch (IOException e) {
+ } catch (CancellationException | IOException e) {
throw e;
} finally {
+ if (os != null) {
+ try {
+ os.flush();
+ } catch (final IOException ignored) {
+
+ }
+ }
FileBackend.close(os);
FileBackend.close(is);
wakeLock.release();
diff --git a/src/main/java/eu/siacs/conversations/services/AbstractConnectionManager.java b/src/main/java/eu/siacs/conversations/services/AbstractConnectionManager.java
index a1256250..8d02f975 100644
--- a/src/main/java/eu/siacs/conversations/services/AbstractConnectionManager.java
+++ b/src/main/java/eu/siacs/conversations/services/AbstractConnectionManager.java
@@ -95,10 +95,18 @@ public class AbstractConnectionManager {
}
}
+ public static OutputStream createAppendedOutputStream(DownloadableFile file) {
+ return createOutputStream(file, false, true);
+ }
+
public static OutputStream createOutputStream(DownloadableFile file, boolean gcm) {
+ return createOutputStream(file, gcm, false);
+ }
+
+ private static OutputStream createOutputStream(DownloadableFile file, boolean gcm, boolean append) {
FileOutputStream os;
try {
- os = new FileOutputStream(file);
+ os = new FileOutputStream(file, append);
if (file.getKey() == null) {
return os;
}