openpgpservice: move stream closing into delegating method
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parent
820c91d132
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4c5fce8f26
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@ -25,6 +25,8 @@ import android.net.Uri;
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import android.os.IBinder;
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import android.os.ParcelFileDescriptor;
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import android.os.Parcelable;
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import android.support.annotation.NonNull;
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import android.support.annotation.Nullable;
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import android.text.TextUtils;
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import org.openintents.openpgp.IOpenPgpService;
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@ -239,10 +241,8 @@ public class OpenPgpService extends RemoteService {
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PendingIntent.FLAG_CANCEL_CURRENT);
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}
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private Intent signImpl(Intent data, ParcelFileDescriptor input,
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ParcelFileDescriptor output, boolean cleartextSign) {
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InputStream is = null;
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OutputStream os = null;
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private Intent signImpl(Intent data, InputStream inputStream,
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OutputStream outputStream, boolean cleartextSign) {
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try {
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boolean asciiArmor = cleartextSign || data.getBooleanExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true);
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@ -278,14 +278,13 @@ public class OpenPgpService extends RemoteService {
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}
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// Get Input- and OutputStream from ParcelFileDescriptor
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is = new ParcelFileDescriptor.AutoCloseInputStream(input);
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if (cleartextSign) {
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if (!cleartextSign) {
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// output stream only needed for cleartext signatures,
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// detached signatures are returned as extra
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os = new ParcelFileDescriptor.AutoCloseOutputStream(output);
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outputStream = null;
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}
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long inputLength = is.available();
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InputData inputData = new InputData(is, inputLength);
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long inputLength = inputStream.available();
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InputData inputData = new InputData(inputStream, inputLength);
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CryptoInputParcel inputParcel = CryptoInputParcelCacheService.getCryptoInputParcel(this, data);
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if (inputParcel == null) {
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@ -299,7 +298,7 @@ public class OpenPgpService extends RemoteService {
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// execute PGP operation!
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PgpSignEncryptOperation pse = new PgpSignEncryptOperation(this, new ProviderHelper(getContext()), null);
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PgpSignEncryptResult pgpResult = pse.execute(pseInput, inputParcel, inputData, os);
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PgpSignEncryptResult pgpResult = pse.execute(pseInput, inputParcel, inputData, outputStream);
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if (pgpResult.isPending()) {
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@ -331,28 +330,11 @@ public class OpenPgpService extends RemoteService {
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new OpenPgpError(OpenPgpError.GENERIC_ERROR, e.getMessage()));
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result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
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return result;
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} finally {
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if (is != null) {
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try {
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is.close();
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} catch (IOException e) {
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Log.e(Constants.TAG, "IOException when closing InputStream", e);
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}
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}
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if (os != null) {
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try {
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os.close();
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} catch (IOException e) {
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Log.e(Constants.TAG, "IOException when closing OutputStream", e);
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}
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}
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}
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}
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private Intent encryptAndSignImpl(Intent data, ParcelFileDescriptor input,
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ParcelFileDescriptor output, boolean sign) {
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InputStream is = null;
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OutputStream os = null;
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private Intent encryptAndSignImpl(Intent data, InputStream inputStream,
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OutputStream outputStream, boolean sign) {
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try {
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boolean asciiArmor = data.getBooleanExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true);
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String originalFilename = data.getStringExtra(OpenPgpApi.EXTRA_ORIGINAL_FILENAME);
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@ -384,13 +366,9 @@ public class OpenPgpService extends RemoteService {
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}
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}
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// build InputData and write into OutputStream
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// Get Input- and OutputStream from ParcelFileDescriptor
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is = new ParcelFileDescriptor.AutoCloseInputStream(input);
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os = new ParcelFileDescriptor.AutoCloseOutputStream(output);
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long inputLength = is.available();
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InputData inputData = new InputData(is, inputLength, originalFilename);
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// TODO this is not correct!
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long inputLength = inputStream.available();
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InputData inputData = new InputData(inputStream, inputLength, originalFilename);
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PgpSignEncryptInputParcel pseInput = new PgpSignEncryptInputParcel();
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pseInput.setEnableAsciiArmorOutput(asciiArmor)
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@ -456,7 +434,7 @@ public class OpenPgpService extends RemoteService {
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PgpSignEncryptOperation op = new PgpSignEncryptOperation(this, new ProviderHelper(getContext()), null);
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// execute PGP operation!
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PgpSignEncryptResult pgpResult = op.execute(pseInput, inputParcel, inputData, os);
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PgpSignEncryptResult pgpResult = op.execute(pseInput, inputParcel, inputData, outputStream);
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if (pgpResult.isPending()) {
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RequiredInputParcel requiredInput = pgpResult.getRequiredInputParcel();
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@ -483,37 +461,15 @@ public class OpenPgpService extends RemoteService {
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new OpenPgpError(OpenPgpError.GENERIC_ERROR, e.getMessage()));
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result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
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return result;
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} finally {
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if (is != null) {
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try {
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is.close();
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} catch (IOException e) {
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Log.e(Constants.TAG, "IOException when closing InputStream", e);
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}
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}
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if (os != null) {
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try {
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os.close();
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} catch (IOException e) {
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Log.e(Constants.TAG, "IOException when closing OutputStream", e);
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}
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}
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}
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}
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private Intent decryptAndVerifyImpl(Intent data, ParcelFileDescriptor inputDescriptor,
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ParcelFileDescriptor output, boolean decryptMetadataOnly) {
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InputStream inputStream = null;
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OutputStream outputStream = null;
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private Intent decryptAndVerifyImpl(Intent data, InputStream inputStream,
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OutputStream outputStream, boolean decryptMetadataOnly) {
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try {
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// Get Input- and OutputStream from ParcelFileDescriptor
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inputStream = new ParcelFileDescriptor.AutoCloseInputStream(inputDescriptor);
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// output is optional, e.g., for verifying detached signatures
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if (decryptMetadataOnly || output == null) {
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if (decryptMetadataOnly) {
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outputStream = null;
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} else {
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outputStream = new ParcelFileDescriptor.AutoCloseOutputStream(output);
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}
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String currentPkg = getCurrentCallingPackage();
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@ -539,6 +495,7 @@ public class OpenPgpService extends RemoteService {
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PgpDecryptVerifyOperation op = new PgpDecryptVerifyOperation(this, mProviderHelper, null);
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// TODO this is not correct!
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long inputLength = inputStream.available();
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InputData inputData = new InputData(inputStream, inputLength);
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@ -605,6 +562,7 @@ public class OpenPgpService extends RemoteService {
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// case RESULT_NOT_ENCRYPTED, but a signature, fallback to deprecated signatureOnly variable
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if (decryptionResult.getResult() == OpenPgpDecryptionResult.RESULT_NOT_ENCRYPTED
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&& signatureResult.getResult() != OpenPgpSignatureResult.RESULT_NO_SIGNATURE) {
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// noinspection deprecation, TODO
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signatureResult.setSignatureOnly(true);
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}
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@ -666,33 +624,14 @@ public class OpenPgpService extends RemoteService {
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result.putExtra(OpenPgpApi.RESULT_ERROR, new OpenPgpError(OpenPgpError.GENERIC_ERROR, e.getMessage()));
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result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
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return result;
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} finally {
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if (inputStream != null) {
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try {
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inputStream.close();
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} catch (IOException e) {
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Log.e(Constants.TAG, "IOException when closing InputStream", e);
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}
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}
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if (outputStream != null) {
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try {
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outputStream.close();
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} catch (IOException e) {
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Log.e(Constants.TAG, "IOException when closing OutputStream", e);
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}
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}
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}
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}
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private Intent getKeyImpl(Intent data, ParcelFileDescriptor output) {
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private Intent getKeyImpl(Intent data, OutputStream outputStream) {
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try {
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long masterKeyId = data.getLongExtra(OpenPgpApi.EXTRA_KEY_ID, 0);
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// output is optional, for getting the key
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OutputStream outputStream =
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(output != null) ? new ParcelFileDescriptor.AutoCloseOutputStream(output) : null;
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try {
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// try to find key, throws NotFoundException if not in db!
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CanonicalizedPublicKeyRing keyRing =
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@ -846,7 +785,7 @@ public class OpenPgpService extends RemoteService {
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OpenPgpError error = new OpenPgpError
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(OpenPgpError.INCOMPATIBLE_API_VERSIONS, "Incompatible API versions!\n"
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+ "used API version: " + data.getIntExtra(OpenPgpApi.EXTRA_API_VERSION, -1) + "\n"
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+ "supported API versions: " + supportedVersions.toString());
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+ "supported API versions: " + supportedVersions);
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result.putExtra(OpenPgpApi.RESULT_ERROR, error);
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result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
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return result;
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@ -875,68 +814,88 @@ public class OpenPgpService extends RemoteService {
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return mBinder;
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}
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@Nullable
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protected Intent executeInternal(
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@NonNull Intent data,
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@Nullable ParcelFileDescriptor input,
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@Nullable ParcelFileDescriptor output) {
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OutputStream outputStream =
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(output != null) ? new ParcelFileDescriptor.AutoCloseOutputStream(output) : null;
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InputStream inputStream =
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(input != null) ? new ParcelFileDescriptor.AutoCloseInputStream(input) : null;
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protected Intent executeInternal(Intent data, ParcelFileDescriptor input, ParcelFileDescriptor output) {
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try {
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Intent errorResult = checkRequirements(data);
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if (errorResult != null) {
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return errorResult;
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}
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String action = data.getAction();
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switch (action) {
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case OpenPgpApi.ACTION_CLEARTEXT_SIGN: {
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return signImpl(data, input, output, true);
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}
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case OpenPgpApi.ACTION_SIGN: {
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// DEPRECATED: same as ACTION_CLEARTEXT_SIGN
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Log.w(Constants.TAG, "You are using a deprecated API call, please use ACTION_CLEARTEXT_SIGN instead of ACTION_SIGN!");
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return signImpl(data, input, output, true);
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}
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case OpenPgpApi.ACTION_DETACHED_SIGN: {
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return signImpl(data, input, output, false);
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}
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case OpenPgpApi.ACTION_ENCRYPT: {
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return encryptAndSignImpl(data, input, output, false);
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}
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case OpenPgpApi.ACTION_SIGN_AND_ENCRYPT: {
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return encryptAndSignImpl(data, input, output, true);
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}
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case OpenPgpApi.ACTION_DECRYPT_VERIFY: {
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return decryptAndVerifyImpl(data, input, output, false);
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}
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case OpenPgpApi.ACTION_DECRYPT_METADATA: {
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return decryptAndVerifyImpl(data, input, output, true);
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}
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case OpenPgpApi.ACTION_GET_SIGN_KEY_ID: {
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return getSignKeyIdImpl(data);
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}
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case OpenPgpApi.ACTION_GET_KEY_IDS: {
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return getKeyIdsImpl(data);
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}
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case OpenPgpApi.ACTION_GET_KEY: {
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return getKeyImpl(data, output);
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}
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default: {
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return null;
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}
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}
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return executeInternalWithStreams(data, inputStream, outputStream);
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} finally {
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// always close input and output file descriptors even in error cases
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if (input != null) {
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if (inputStream != null) {
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try {
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input.close();
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inputStream.close();
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} catch (IOException e) {
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Log.e(Constants.TAG, "IOException when closing input ParcelFileDescriptor", e);
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}
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}
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if (output != null) {
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if (outputStream != null) {
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try {
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output.close();
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outputStream.close();
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} catch (IOException e) {
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Log.e(Constants.TAG, "IOException when closing output ParcelFileDescriptor", e);
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}
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}
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}
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}
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@Nullable
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protected Intent executeInternalWithStreams(
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@NonNull Intent data,
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@Nullable InputStream inputStream,
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@Nullable OutputStream outputStream) {
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Intent errorResult = checkRequirements(data);
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if (errorResult != null) {
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return errorResult;
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}
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String action = data.getAction();
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switch (action) {
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case OpenPgpApi.ACTION_CLEARTEXT_SIGN: {
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return signImpl(data, inputStream, outputStream, true);
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}
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case OpenPgpApi.ACTION_SIGN: {
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// DEPRECATED: same as ACTION_CLEARTEXT_SIGN
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Log.w(Constants.TAG, "You are using a deprecated API call, please use ACTION_CLEARTEXT_SIGN instead of ACTION_SIGN!");
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return signImpl(data, inputStream, outputStream, true);
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}
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case OpenPgpApi.ACTION_DETACHED_SIGN: {
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return signImpl(data, inputStream, outputStream, false);
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}
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case OpenPgpApi.ACTION_ENCRYPT: {
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return encryptAndSignImpl(data, inputStream, outputStream, false);
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}
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case OpenPgpApi.ACTION_SIGN_AND_ENCRYPT: {
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return encryptAndSignImpl(data, inputStream, outputStream, true);
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}
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case OpenPgpApi.ACTION_DECRYPT_VERIFY: {
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return decryptAndVerifyImpl(data, inputStream, outputStream, false);
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}
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case OpenPgpApi.ACTION_DECRYPT_METADATA: {
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return decryptAndVerifyImpl(data, inputStream, outputStream, true);
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}
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case OpenPgpApi.ACTION_GET_SIGN_KEY_ID: {
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return getSignKeyIdImpl(data);
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}
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case OpenPgpApi.ACTION_GET_KEY_IDS: {
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return getKeyIdsImpl(data);
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}
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case OpenPgpApi.ACTION_GET_KEY: {
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return getKeyImpl(data, outputStream);
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}
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default: {
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return null;
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}
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}
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}
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}
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