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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/base/upload_data_stream.h"
#include "base/check_op.h"
#include "base/values.h"
#include "net/base/io_buffer.h"
#include "net/base/net_errors.h"
#include "net/log/net_log_event_type.h"
namespace net {
namespace {
base::Value NetLogInitEndInfoParams(int result,
int total_size,
bool is_chunked) {
base::Value::Dict dict;
dict.Set("net_error", result);
dict.Set("total_size", total_size);
dict.Set("is_chunked", is_chunked);
return base::Value(std::move(dict));
}
base::Value CreateReadInfoParams(int current_position) {
base::Value::Dict dict;
dict.Set("current_position", current_position);
return base::Value(std::move(dict));
}
} // namespace
UploadDataStream::UploadDataStream(bool is_chunked, int64_t identifier)
: UploadDataStream(is_chunked, /*has_null_source=*/false, identifier) {}
UploadDataStream::UploadDataStream(bool is_chunked,
bool has_null_source,
int64_t identifier)
: identifier_(identifier),
is_chunked_(is_chunked),
has_null_source_(has_null_source) {}
UploadDataStream::~UploadDataStream() = default;
int UploadDataStream::Init(CompletionOnceCallback callback,
const NetLogWithSource& net_log) {
Reset();
DCHECK(!initialized_successfully_);
DCHECK(callback_.is_null());
DCHECK(!callback.is_null() || IsInMemory());
net_log_ = net_log;
net_log_.BeginEvent(NetLogEventType::UPLOAD_DATA_STREAM_INIT);
int result = InitInternal(net_log_);
if (result == ERR_IO_PENDING) {
DCHECK(!IsInMemory());
callback_ = std::move(callback);
} else {
OnInitCompleted(result);
}
return result;
}
int UploadDataStream::Read(IOBuffer* buf,
int buf_len,
CompletionOnceCallback callback) {
DCHECK(!callback.is_null() || IsInMemory());
DCHECK(initialized_successfully_);
DCHECK_GT(buf_len, 0);
net_log_.BeginEvent(NetLogEventType::UPLOAD_DATA_STREAM_READ,
[&] { return CreateReadInfoParams(current_position_); });
int result = 0;
if (!is_eof_)
result = ReadInternal(buf, buf_len);
if (result == ERR_IO_PENDING) {
DCHECK(!IsInMemory());
callback_ = std::move(callback);
} else {
OnReadCompleted(result);
}
return result;
}
bool UploadDataStream::IsEOF() const {
DCHECK(initialized_successfully_);
DCHECK(is_chunked_ || is_eof_ == (current_position_ == total_size_));
return is_eof_;
}
void UploadDataStream::Reset() {
// If there's a pending callback, there's a pending init or read call that is
// being canceled.
if (!callback_.is_null()) {
if (!initialized_successfully_) {
// If initialization has not yet succeeded, this call is aborting
// initialization.
net_log_.EndEventWithNetErrorCode(
NetLogEventType::UPLOAD_DATA_STREAM_INIT, ERR_ABORTED);
} else {
// Otherwise, a read is being aborted.
net_log_.EndEventWithNetErrorCode(
NetLogEventType::UPLOAD_DATA_STREAM_READ, ERR_ABORTED);
}
}
current_position_ = 0;
initialized_successfully_ = false;
is_eof_ = false;
total_size_ = 0;
callback_.Reset();
ResetInternal();
}
void UploadDataStream::SetSize(uint64_t size) {
DCHECK(!initialized_successfully_);
DCHECK(!is_chunked_);
total_size_ = size;
}
void UploadDataStream::SetIsFinalChunk() {
DCHECK(initialized_successfully_);
DCHECK(is_chunked_);
DCHECK(!is_eof_);
is_eof_ = true;
}
bool UploadDataStream::IsInMemory() const {
return false;
}
const std::vector<std::unique_ptr<UploadElementReader>>*
UploadDataStream::GetElementReaders() const {
return nullptr;
}
void UploadDataStream::OnInitCompleted(int result) {
DCHECK_NE(ERR_IO_PENDING, result);
DCHECK(!initialized_successfully_);
DCHECK_EQ(0u, current_position_);
DCHECK(!is_eof_);
if (result == OK) {
initialized_successfully_ = true;
if (!is_chunked_ && total_size_ == 0)
is_eof_ = true;
}
net_log_.EndEvent(NetLogEventType::UPLOAD_DATA_STREAM_INIT, [&] {
return NetLogInitEndInfoParams(result, total_size_, is_chunked_);
});
if (!callback_.is_null())
std::move(callback_).Run(result);
}
void UploadDataStream::OnReadCompleted(int result) {
DCHECK(initialized_successfully_);
DCHECK(result != 0 || is_eof_);
DCHECK_NE(ERR_IO_PENDING, result);
if (result > 0) {
current_position_ += result;
if (!is_chunked_) {
DCHECK_LE(current_position_, total_size_);
if (current_position_ == total_size_)
is_eof_ = true;
}
}
net_log_.EndEventWithNetErrorCode(NetLogEventType::UPLOAD_DATA_STREAM_READ,
result);
if (!callback_.is_null())
std::move(callback_).Run(result);
}
UploadProgress UploadDataStream::GetUploadProgress() const {
// While initialization / rewinding is in progress, return nothing.
if (!initialized_successfully_)
return UploadProgress();
return UploadProgress(current_position_, total_size_);
}
bool UploadDataStream::AllowHTTP1() const {
return true;
}
} // namespace net
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