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export: improve stream handling, performance

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This commit is contained in:
Vincent Breitmoser
2015-09-28 04:20:33 +02:00
parent 46e24058ba
commit 5f1259f3f7
2 changed files with 28 additions and 3 deletions
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15
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/ExportOperation.java
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@@ -19,6 +19,8 @@
package org.sufficientlysecure.keychain.operations;
import java.io.BufferedOutputStream;
import java.io.DataOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
@@ -111,12 +113,18 @@ public class ExportOperation extends BaseOperation<ExportKeyringParcel> {
? exportInput.mOutputUri
: TemporaryStorageProvider.createFile(mContext);
int exportedDataSize;
{ // export key data, and possibly return if we don't encrypt
OutputStream outStream = mContext.getContentResolver().openOutputStream(exportOutputUri);
DataOutputStream outStream = new DataOutputStream(new BufferedOutputStream(
mContext.getContentResolver().openOutputStream(exportOutputUri)));
boolean exportSuccess = exportKeysToStream(
log, exportInput.mMasterKeyIds, exportInput.mExportSecret, outStream);
exportedDataSize = outStream.size();
if (!exportSuccess) {
// if there was an error, it will be in the log so we just have to return
return new ExportResult(ExportResult.RESULT_ERROR, log);
@@ -138,7 +146,7 @@ public class ExportOperation extends BaseOperation<ExportKeyringParcel> {
InputStream inStream = mContext.getContentResolver().openInputStream(exportOutputUri);
String filename;
if (exportInput.mMasterKeyIds.length == 1) {
if (exportInput.mMasterKeyIds != null && exportInput.mMasterKeyIds.length == 1) {
filename = "backup_" + KeyFormattingUtils.convertKeyIdToHex(exportInput.mMasterKeyIds[0]);
filename += exportInput.mExportSecret ? ".sec.asc" : ".pub.asc";
} else {
@@ -146,9 +154,10 @@ public class ExportOperation extends BaseOperation<ExportKeyringParcel> {
filename += exportInput.mExportSecret ? ".asc" : ".pub.asc";
}
InputData inputData = new InputData(inStream, 0L, filename);
InputData inputData = new InputData(inStream, exportedDataSize, filename);
OutputStream outStream = mContext.getContentResolver().openOutputStream(exportInput.mOutputUri);
outStream = new BufferedOutputStream(outStream);
PgpSignEncryptResult encryptResult = pseOp.execute(inputParcel, new CryptoInputParcel(), inputData, outStream);
if (!encryptResult.success()) {