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open-keychain
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Code Issues Releases Wiki Activity

Close FileDescriptors and input, output streams when possible

This commit is contained in:
Dominik Schürmann 2015-01-29 12:44:06 +01:00
parent c4ef86b38a
commit a346b58db7
1 changed files with 335 additions and 285 deletions
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102
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java
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@ -55,6 +55,7 @@ import org.sufficientlysecure.keychain.ui.ViewKeyActivity;
import org.sufficientlysecure.keychain.util.InputData;
import org.sufficientlysecure.keychain.util.Log;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
@ -224,6 +225,8 @@ public class OpenPgpService extends RemoteService {
private Intent signImpl(Intent data, ParcelFileDescriptor input,
ParcelFileDescriptor output, AccountSettings accSettings,
boolean cleartextSign) {
InputStream is = null;
OutputStream os = null;
try {
boolean asciiArmor = cleartextSign || data.getBooleanExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true);
@ -243,14 +246,12 @@ public class OpenPgpService extends RemoteService {
}
// Get Input- and OutputStream from ParcelFileDescriptor
InputStream is = new ParcelFileDescriptor.AutoCloseInputStream(input);
OutputStream os = null;
is = new ParcelFileDescriptor.AutoCloseInputStream(input);
if (cleartextSign) {
// output stream only needed for cleartext signatures,
// detached signatures are returned as extra
os = new ParcelFileDescriptor.AutoCloseOutputStream(output);
}
try {
long inputLength = is.available();
InputData inputData = new InputData(is, inputLength);
@ -328,12 +329,6 @@ public class OpenPgpService extends RemoteService {
LogEntryParcel errorMsg = pgpResult.getLog().getLast();
throw new Exception(getString(errorMsg.mType.getMsgId()));
}
} finally {
is.close();
if (os != null) {
os.close();
}
}
} catch (Exception e) {
Log.d(Constants.TAG, "signImpl", e);
Intent result = new Intent();
@ -341,12 +336,29 @@ public class OpenPgpService extends RemoteService {
new OpenPgpError(OpenPgpError.GENERIC_ERROR, e.getMessage()));
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
return result;
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
Log.e(Constants.TAG, "IOException when closing InputStream", e);
}
}
if (os != null) {
try {
os.close();
} catch (IOException e) {
Log.e(Constants.TAG, "IOException when closing OutputStream", e);
}
}
}
}
private Intent encryptAndSignImpl(Intent data, ParcelFileDescriptor input,
ParcelFileDescriptor output, AccountSettings accSettings,
boolean sign) {
InputStream is = null;
OutputStream os = null;
try {
boolean asciiArmor = data.getBooleanExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true);
String originalFilename = data.getStringExtra(OpenPgpApi.EXTRA_ORIGINAL_FILENAME);
@ -372,9 +384,9 @@ public class OpenPgpService extends RemoteService {
// build InputData and write into OutputStream
// Get Input- and OutputStream from ParcelFileDescriptor
InputStream is = new ParcelFileDescriptor.AutoCloseInputStream(input);
OutputStream os = new ParcelFileDescriptor.AutoCloseOutputStream(output);
try {
is = new ParcelFileDescriptor.AutoCloseInputStream(input);
os = new ParcelFileDescriptor.AutoCloseOutputStream(output);
long inputLength = is.available();
InputData inputData = new InputData(is, inputLength);
@ -458,11 +470,6 @@ public class OpenPgpService extends RemoteService {
LogEntryParcel errorMsg = pgpResult.getLog().getLast();
throw new Exception(getString(errorMsg.mType.getMsgId()));
}
} finally {
is.close();
os.close();
}
} catch (Exception e) {
Log.d(Constants.TAG, "encryptAndSignImpl", e);
Intent result = new Intent();
@ -470,17 +477,33 @@ public class OpenPgpService extends RemoteService {
new OpenPgpError(OpenPgpError.GENERIC_ERROR, e.getMessage()));
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
return result;
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
Log.e(Constants.TAG, "IOException when closing InputStream", e);
}
}
if (os != null) {
try {
os.close();
} catch (IOException e) {
Log.e(Constants.TAG, "IOException when closing OutputStream", e);
}
}
}
}
private Intent decryptAndVerifyImpl(Intent data, ParcelFileDescriptor input,
ParcelFileDescriptor output, Set<Long> allowedKeyIds,
boolean decryptMetadataOnly) {
InputStream is = null;
OutputStream os = null;
try {
// Get Input- and OutputStream from ParcelFileDescriptor
InputStream is = new ParcelFileDescriptor.AutoCloseInputStream(input);
is = new ParcelFileDescriptor.AutoCloseInputStream(input);
OutputStream os;
// output is optional, e.g., for verifying detached signatures
if (decryptMetadataOnly || output == null) {
os = null;
@ -488,7 +511,6 @@ public class OpenPgpService extends RemoteService {
os = new ParcelFileDescriptor.AutoCloseOutputStream(output);
}
try {
String passphrase = data.getStringExtra(OpenPgpApi.EXTRA_PASSPHRASE);
long inputLength = is.available();
InputData inputData = new InputData(is, inputLength);
@ -577,12 +599,7 @@ public class OpenPgpService extends RemoteService {
LogEntryParcel errorMsg = pgpResult.getLog().getLast();
throw new Exception(getString(errorMsg.mType.getMsgId()));
}
} finally {
is.close();
if (os != null) {
os.close();
}
}
} catch (Exception e) {
Log.d(Constants.TAG, "decryptAndVerifyImpl", e);
Intent result = new Intent();
@ -590,6 +607,21 @@ public class OpenPgpService extends RemoteService {
new OpenPgpError(OpenPgpError.GENERIC_ERROR, e.getMessage()));
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
return result;
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
Log.e(Constants.TAG, "IOException when closing InputStream", e);
}
}
if (os != null) {
try {
os.close();
} catch (IOException e) {
Log.e(Constants.TAG, "IOException when closing OutputStream", e);
}
}
}
}
@ -720,6 +752,7 @@ public class OpenPgpService extends RemoteService {
@Override
public Intent execute(Intent data, ParcelFileDescriptor input, ParcelFileDescriptor output) {
try {
Intent errorResult = checkRequirements(data);
if (errorResult != null) {
return errorResult;
@ -763,6 +796,23 @@ public class OpenPgpService extends RemoteService {
} else {
return null;
}
} finally {
// always close input and output file descriptors even in error cases
if (input != null) {
try {
input.close();
} catch (IOException e) {
Log.e(Constants.TAG, "IOException when closing input ParcelFileDescriptor", e);
}
}
if (output != null) {
try {
output.close();
} catch (IOException e) {
Log.e(Constants.TAG, "IOException when closing output ParcelFileDescriptor", e);
}
}
}
}
};