/
url_request_stream_job.cc
255 lines (219 loc) · 8.41 KB
/
url_request_stream_job.cc
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// Copyright (c) 2017 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/browser/net/url_request_stream_job.h"
#include <algorithm>
#include <memory>
#include <ostream>
#include <string>
#include <utility>
#include "atom/common/api/event_emitter_caller.h"
#include "atom/common/atom_constants.h"
#include "atom/common/native_mate_converters/net_converter.h"
#include "atom/common/node_includes.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/time/time.h"
#include "native_mate/dictionary.h"
#include "net/base/net_errors.h"
#include "net/filter/gzip_source_stream.h"
namespace atom {
namespace {
void BeforeStartInUI(base::WeakPtr<URLRequestStreamJob> job,
mate::Arguments* args) {
v8::Local<v8::Value> value;
int error = net::OK;
bool ended = false;
if (!args->GetNext(&value) || !value->IsObject()) {
// Invalid opts.
content::BrowserThread::PostTask(
content::BrowserThread::IO, FROM_HERE,
base::BindOnce(&URLRequestStreamJob::OnError, job, net::ERR_FAILED));
return;
}
mate::Dictionary opts(args->isolate(), v8::Local<v8::Object>::Cast(value));
int status_code;
if (!opts.Get("statusCode", &status_code)) {
// assume HTTP OK if statusCode is not passed.
status_code = 200;
}
std::string status("HTTP/1.1 ");
status.append(base::IntToString(status_code));
status.append(" ");
status.append(
net::GetHttpReasonPhrase(static_cast<net::HttpStatusCode>(status_code)));
status.append("\0\0", 2);
scoped_refptr<net::HttpResponseHeaders> response_headers(
new net::HttpResponseHeaders(status));
if (opts.Get("headers", &value)) {
mate::Converter<net::HttpResponseHeaders*>::FromV8(args->isolate(), value,
response_headers.get());
}
if (!opts.Get("data", &value)) {
// Assume the opts is already a stream
value = opts.GetHandle();
} else if (value->IsNullOrUndefined()) {
// "data" was explicitly passed as null or undefined, assume the user wants
// to send an empty body.
ended = true;
content::BrowserThread::PostTask(
content::BrowserThread::IO, FROM_HERE,
base::BindOnce(&URLRequestStreamJob::StartAsync, job, nullptr,
base::RetainedRef(response_headers), ended, error));
return;
}
mate::Dictionary data(args->isolate(), v8::Local<v8::Object>::Cast(value));
if (!data.Get("on", &value) || !value->IsFunction() ||
!data.Get("removeListener", &value) || !value->IsFunction()) {
// If data is passed but it is not a stream, signal an error.
content::BrowserThread::PostTask(
content::BrowserThread::IO, FROM_HERE,
base::BindOnce(&URLRequestStreamJob::OnError, job, net::ERR_FAILED));
return;
}
auto subscriber = std::make_unique<mate::StreamSubscriber>(
args->isolate(), data.GetHandle(), job);
content::BrowserThread::PostTask(
content::BrowserThread::IO, FROM_HERE,
base::BindOnce(&URLRequestStreamJob::StartAsync, job,
std::move(subscriber), base::RetainedRef(response_headers),
ended, error));
}
} // namespace
URLRequestStreamJob::URLRequestStreamJob(net::URLRequest* request,
net::NetworkDelegate* network_delegate)
: net::URLRequestJob(request, network_delegate),
pending_buf_(nullptr),
pending_buf_size_(0),
ended_(false),
response_headers_(nullptr),
weak_factory_(this) {}
URLRequestStreamJob::~URLRequestStreamJob() {
if (subscriber_) {
content::BrowserThread::DeleteSoon(content::BrowserThread::UI, FROM_HERE,
std::move(subscriber_));
}
}
void URLRequestStreamJob::Start() {
auto request_details = std::make_unique<base::DictionaryValue>();
FillRequestDetails(request_details.get(), request());
content::BrowserThread::PostTask(
content::BrowserThread::UI, FROM_HERE,
base::BindOnce(&JsAsker::AskForOptions, base::Unretained(isolate()),
handler(), std::move(request_details),
base::Bind(&BeforeStartInUI, weak_factory_.GetWeakPtr())));
}
void URLRequestStreamJob::StartAsync(
std::unique_ptr<mate::StreamSubscriber> subscriber,
scoped_refptr<net::HttpResponseHeaders> response_headers,
bool ended,
int error) {
if (error != net::OK) {
NotifyStartError(
net::URLRequestStatus(net::URLRequestStatus::FAILED, error));
return;
}
ended_ = ended;
response_headers_ = response_headers;
subscriber_ = std::move(subscriber);
request_start_time_ = base::TimeTicks::Now();
NotifyHeadersComplete();
}
void URLRequestStreamJob::OnData(std::vector<char>&& buffer) { // NOLINT
DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
if (write_buffer_.empty()) {
// Quick branch without copying.
write_buffer_ = std::move(buffer);
} else {
// write_buffer_ += buffer
size_t len = write_buffer_.size();
write_buffer_.resize(len + buffer.size());
std::copy(buffer.begin(), buffer.end(), write_buffer_.begin() + len);
}
// Copy to output.
if (pending_buf_) {
int len = BufferCopy(&write_buffer_, pending_buf_.get(), pending_buf_size_);
write_buffer_.erase(write_buffer_.begin(), write_buffer_.begin() + len);
pending_buf_ = nullptr;
pending_buf_size_ = 0;
ReadRawDataComplete(len);
}
}
void URLRequestStreamJob::OnEnd() {
ended_ = true;
if (pending_buf_) {
ReadRawDataComplete(0);
}
}
void URLRequestStreamJob::OnError(int error) {
NotifyStartError(net::URLRequestStatus(net::URLRequestStatus::FAILED, error));
}
int URLRequestStreamJob::ReadRawData(net::IOBuffer* dest, int dest_size) {
response_start_time_ = base::TimeTicks::Now();
if (ended_ && write_buffer_.empty())
return 0;
// When write_buffer_ is empty, there is no data valable yet, we have to save
// the dest buffer util DataAvailable.
if (write_buffer_.empty()) {
pending_buf_ = dest;
pending_buf_size_ = dest_size;
return net::ERR_IO_PENDING;
}
// Read from the write buffer and clear them after reading.
int len = BufferCopy(&write_buffer_, dest, dest_size);
write_buffer_.erase(write_buffer_.begin(), write_buffer_.begin() + len);
return len;
}
void URLRequestStreamJob::DoneReading() {
content::BrowserThread::DeleteSoon(content::BrowserThread::UI, FROM_HERE,
std::move(subscriber_));
write_buffer_.clear();
}
void URLRequestStreamJob::DoneReadingRedirectResponse() {
DoneReading();
}
std::unique_ptr<net::SourceStream> URLRequestStreamJob::SetUpSourceStream() {
std::unique_ptr<net::SourceStream> source =
net::URLRequestJob::SetUpSourceStream();
size_t i = 0;
std::string type;
while (response_headers_->EnumerateHeader(&i, "Content-Encoding", &type)) {
if (base::LowerCaseEqualsASCII(type, "gzip") ||
base::LowerCaseEqualsASCII(type, "x-gzip")) {
return net::GzipSourceStream::Create(std::move(source),
net::SourceStream::TYPE_GZIP);
} else if (base::LowerCaseEqualsASCII(type, "deflate")) {
return net::GzipSourceStream::Create(std::move(source),
net::SourceStream::TYPE_DEFLATE);
}
}
return source;
}
bool URLRequestStreamJob::GetMimeType(std::string* mime_type) const {
return response_headers_->GetMimeType(mime_type);
}
int URLRequestStreamJob::GetResponseCode() const {
return response_headers_->response_code();
}
void URLRequestStreamJob::GetResponseInfo(net::HttpResponseInfo* info) {
info->headers = response_headers_;
}
void URLRequestStreamJob::GetLoadTimingInfo(
net::LoadTimingInfo* load_timing_info) const {
load_timing_info->send_start = request_start_time_;
load_timing_info->send_end = request_start_time_;
load_timing_info->request_start = request_start_time_;
load_timing_info->receive_headers_end = response_start_time_;
}
void URLRequestStreamJob::Kill() {
weak_factory_.InvalidateWeakPtrs();
net::URLRequestJob::Kill();
}
int URLRequestStreamJob::BufferCopy(std::vector<char>* source,
net::IOBuffer* target,
int target_size) {
int bytes_written = std::min(static_cast<int>(source->size()), target_size);
memcpy(target->data(), source->data(), bytes_written);
return bytes_written;
}
} // namespace atom