already_AddRefed<InternalResponse>
InternalResponse::Clone()
{
nsRefPtr<InternalResponse> clone = CreateIncompleteCopy();
clone->mHeaders = new InternalHeaders(*mHeaders);
if (mWrappedResponse) {
clone->mWrappedResponse = mWrappedResponse->Clone();
MOZ_ASSERT(!mBody);
return clone.forget();
}
if (!mBody) {
return clone.forget();
}
nsCOMPtr<nsIInputStream> clonedBody;
nsCOMPtr<nsIInputStream> replacementBody;
nsresult rv = NS_CloneInputStream(mBody, getter_AddRefs(clonedBody),
getter_AddRefs(replacementBody));
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
clone->mBody.swap(clonedBody);
if (replacementBody) {
mBody.swap(replacementBody);
}
return clone.forget();
}
TEST(CloneInputStream, NonCloneableInput_NoFallback)
{
nsTArray<char> inputData;
testing::CreateData(4 * 1024, inputData);
nsDependentCSubstring inputString(inputData.Elements(), inputData.Length());
nsCOMPtr<nsIInputStream> base;
nsresult rv = NS_NewCStringInputStream(getter_AddRefs(base), inputString);
ASSERT_TRUE(NS_SUCCEEDED(rv));
// Take advantage of nsBufferedInputStream being non-cloneable right
// now. If this changes in the future, then we need a different stream
// type in this test.
nsCOMPtr<nsIInputStream> stream;
rv = NS_NewBufferedInputStream(getter_AddRefs(stream), base, 4096);
ASSERT_TRUE(NS_SUCCEEDED(rv));
nsCOMPtr<nsICloneableInputStream> cloneable = do_QueryInterface(stream);
ASSERT_TRUE(cloneable == nullptr);
nsCOMPtr<nsIInputStream> clone;
rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
ASSERT_TRUE(NS_FAILED(rv));
ASSERT_TRUE(clone == nullptr);
testing::ConsumeAndValidateStream(stream, inputString);
}
TEST(CloneInputStream, InvalidInput)
{
nsCOMPtr<nsIInputStream> clone;
nsresult rv = NS_CloneInputStream(nullptr, getter_AddRefs(clone));
ASSERT_TRUE(NS_FAILED(rv));
ASSERT_FALSE(clone);
}
TEST(CloneInputStream, CloneMultiplexStreamPartial)
{
nsCOMPtr<nsIMultiplexInputStream> stream =
do_CreateInstance("@mozilla.org/io/multiplex-input-stream;1");
ASSERT_TRUE(stream);
nsTArray<char> inputData;
testing::CreateData(1024, inputData);
for (uint32_t i = 0; i < 2; ++i) {
nsCString inputString(inputData.Elements(), inputData.Length());
nsCOMPtr<nsIInputStream> base;
nsresult rv = NS_NewCStringInputStream(getter_AddRefs(base), inputString);
ASSERT_TRUE(NS_SUCCEEDED(rv));
rv = stream->AppendStream(base);
ASSERT_TRUE(NS_SUCCEEDED(rv));
}
// Fail when first stream read, but second hasn't been started.
nsAutoPtr<char> buffer(new char[1024]);
uint32_t read;
nsresult rv = stream->Read(buffer, 1024, &read);
ASSERT_TRUE(NS_SUCCEEDED(rv));
nsCOMPtr<nsIInputStream> clone;
rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
ASSERT_TRUE(NS_FAILED(rv));
// Fail after beginning read of second stream.
rv = stream->Read(buffer, 512, &read);
ASSERT_TRUE(NS_SUCCEEDED(rv) && read == 512);
rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
ASSERT_TRUE(NS_FAILED(rv));
// Fail at the end.
nsAutoCString consumed;
rv = NS_ConsumeStream(stream, UINT32_MAX, consumed);
ASSERT_TRUE(NS_SUCCEEDED(rv));
rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
ASSERT_TRUE(NS_FAILED(rv));
}
TEST(CloneInputStream, CloneMultiplexStream)
{
nsCOMPtr<nsIMultiplexInputStream> stream =
do_CreateInstance("@mozilla.org/io/multiplex-input-stream;1");
ASSERT_TRUE(stream);
nsTArray<char> inputData;
testing::CreateData(1024, inputData);
for (uint32_t i = 0; i < 2; ++i) {
nsCString inputString(inputData.Elements(), inputData.Length());
nsCOMPtr<nsIInputStream> base;
nsresult rv = NS_NewCStringInputStream(getter_AddRefs(base), inputString);
ASSERT_TRUE(NS_SUCCEEDED(rv));
rv = stream->AppendStream(base);
ASSERT_TRUE(NS_SUCCEEDED(rv));
}
// Unread stream should clone successfully.
nsTArray<char> doubled;
doubled.AppendElements(inputData);
doubled.AppendElements(inputData);
nsCOMPtr<nsIInputStream> clone;
nsresult rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
ASSERT_TRUE(NS_SUCCEEDED(rv));
testing::ConsumeAndValidateStream(clone, doubled);
// Stream that has been read should fail.
nsAutoPtr<char> buffer(new char[512]);
uint32_t read;
rv = stream->Read(buffer, 512, &read);
ASSERT_TRUE(NS_SUCCEEDED(rv));
nsCOMPtr<nsIInputStream> clone2;
rv = NS_CloneInputStream(stream, getter_AddRefs(clone2));
ASSERT_TRUE(NS_FAILED(rv));
}
TEST(CloneInputStream, CloneableInput)
{
nsTArray<char> inputData;
testing::CreateData(4 * 1024, inputData);
nsDependentCSubstring inputString(inputData.Elements(), inputData.Length());
nsCOMPtr<nsIInputStream> stream;
nsresult rv = NS_NewCStringInputStream(getter_AddRefs(stream), inputString);
ASSERT_TRUE(NS_SUCCEEDED(rv));
nsCOMPtr<nsIInputStream> clone;
rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
ASSERT_TRUE(NS_SUCCEEDED(rv));
testing::ConsumeAndValidateStream(stream, inputString);
testing::ConsumeAndValidateStream(clone, inputString);
}
TEST(CloneInputStream, NonCloneableInput_Fallback)
{
nsTArray<char> inputData;
testing::CreateData(4 * 1024, inputData);
nsDependentCSubstring inputString(inputData.Elements(), inputData.Length());
nsCOMPtr<nsIInputStream> base;
nsresult rv = NS_NewCStringInputStream(getter_AddRefs(base), inputString);
ASSERT_TRUE(NS_SUCCEEDED(rv));
// Take advantage of nsBufferedInputStream being non-cloneable right
// now. If this changes in the future, then we need a different stream
// type in this test.
nsCOMPtr<nsIInputStream> stream;
rv = NS_NewBufferedInputStream(getter_AddRefs(stream), base, 4096);
ASSERT_TRUE(NS_SUCCEEDED(rv));
nsCOMPtr<nsICloneableInputStream> cloneable = do_QueryInterface(stream);
ASSERT_TRUE(cloneable == nullptr);
nsCOMPtr<nsIInputStream> clone;
nsCOMPtr<nsIInputStream> replacement;
rv = NS_CloneInputStream(stream, getter_AddRefs(clone),
getter_AddRefs(replacement));
ASSERT_TRUE(NS_SUCCEEDED(rv));
ASSERT_TRUE(clone != nullptr);
ASSERT_TRUE(replacement != nullptr);
ASSERT_TRUE(stream.get() != replacement.get());
ASSERT_TRUE(clone.get() != replacement.get());
stream = replacement.forget();
// The stream is being copied asynchronously on the STS event target. Spin
// a yield loop here until the data is available. Yes, this is a bit hacky,
// but AFAICT, gtest does not support async test completion.
uint64_t available;
do {
mozilla::unused << PR_Sleep(PR_INTERVAL_NO_WAIT);
rv = stream->Available(&available);
ASSERT_TRUE(NS_SUCCEEDED(rv));
} while(available < inputString.Length());
testing::ConsumeAndValidateStream(stream, inputString);
testing::ConsumeAndValidateStream(clone, inputString);
}
void
BlobImplStream::GetInternalStream(nsIInputStream** aStream, ErrorResult& aRv)
{
nsCOMPtr<nsIInputStream> clonedStream;
nsCOMPtr<nsIInputStream> replacementStream;
aRv = NS_CloneInputStream(mInputStream, getter_AddRefs(clonedStream),
getter_AddRefs(replacementStream));
if (NS_WARN_IF(aRv.Failed())) {
return;
}
if (replacementStream) {
mInputStream = replacementStream.forget();
}
clonedStream.forget(aStream);
}
already_AddRefed<InternalRequest>
InternalRequest::Clone()
{
RefPtr<InternalRequest> clone = new InternalRequest(*this);
if (!mBodyStream) {
return clone.forget();
}
nsCOMPtr<nsIInputStream> clonedBody;
nsCOMPtr<nsIInputStream> replacementBody;
nsresult rv = NS_CloneInputStream(mBodyStream, getter_AddRefs(clonedBody),
getter_AddRefs(replacementBody));
if (NS_WARN_IF(NS_FAILED(rv))) { return nullptr; }
clone->mBodyStream.swap(clonedBody);
if (replacementBody) {
mBodyStream.swap(replacementBody);
}
return clone.forget();
}