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// Copyright (c) 2013 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 "content/browser/renderer_host/p2p/socket_host_test_utils.h"
#include "base/sys_byteorder.h"
#include "base/thread_task_runner_handle.h"
#include "net/base/completion_callback.h"
#include "net/base/io_buffer.h"
const int kStunHeaderSize = 20;
const uint16 kStunBindingRequest = 0x0001;
const uint16 kStunBindingResponse = 0x0102;
const uint16 kStunBindingError = 0x0111;
const uint32 kStunMagicCookie = 0x2112A442;
MockIPCSender::MockIPCSender() { }
MockIPCSender::~MockIPCSender() { }
FakeSocket::FakeSocket(std::string* written_data)
: read_pending_(false),
input_pos_(0),
written_data_(written_data),
async_write_(false),
write_pending_(false) {
}
FakeSocket::~FakeSocket() { }
void FakeSocket::AppendInputData(const char* data, int data_size) {
input_data_.insert(input_data_.end(), data, data + data_size);
// Complete pending read if any.
if (read_pending_) {
read_pending_ = false;
int result = std::min(read_buffer_size_,
static_cast<int>(input_data_.size() - input_pos_));
CHECK(result > 0);
memcpy(read_buffer_->data(), &input_data_[0] + input_pos_, result);
input_pos_ += result;
read_buffer_ = NULL;
net::CompletionCallback cb = read_callback_;
read_callback_.Reset();
cb.Run(result);
}
}
void FakeSocket::SetPeerAddress(const net::IPEndPoint& peer_address) {
peer_address_ = peer_address;
}
void FakeSocket::SetLocalAddress(const net::IPEndPoint& local_address) {
local_address_ = local_address;
}
int FakeSocket::Read(net::IOBuffer* buf, int buf_len,
const net::CompletionCallback& callback) {
DCHECK(buf);
if (input_pos_ < static_cast<int>(input_data_.size())){
int result = std::min(buf_len,
static_cast<int>(input_data_.size()) - input_pos_);
memcpy(buf->data(), &(*input_data_.begin()) + input_pos_, result);
input_pos_ += result;
return result;
} else {
read_pending_ = true;
read_buffer_ = buf;
read_buffer_size_ = buf_len;
read_callback_ = callback;
return net::ERR_IO_PENDING;
}
}
int FakeSocket::Write(net::IOBuffer* buf, int buf_len,
const net::CompletionCallback& callback) {
DCHECK(buf);
DCHECK(!write_pending_);
if (async_write_) {
base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, base::Bind(
&FakeSocket::DoAsyncWrite, base::Unretained(this),
scoped_refptr<net::IOBuffer>(buf), buf_len, callback));
write_pending_ = true;
return net::ERR_IO_PENDING;
}
if (written_data_) {
written_data_->insert(written_data_->end(),
buf->data(), buf->data() + buf_len);
}
return buf_len;
}
void FakeSocket::DoAsyncWrite(scoped_refptr<net::IOBuffer> buf, int buf_len,
const net::CompletionCallback& callback) {
write_pending_ = false;
if (written_data_) {
written_data_->insert(written_data_->end(),
buf->data(), buf->data() + buf_len);
}
callback.Run(buf_len);
}
int FakeSocket::SetReceiveBufferSize(int32 size) {
NOTIMPLEMENTED();
return net::ERR_NOT_IMPLEMENTED;
}
int FakeSocket::SetSendBufferSize(int32 size) {
NOTIMPLEMENTED();
return net::ERR_NOT_IMPLEMENTED;
}
int FakeSocket::Connect(const net::CompletionCallback& callback) {
return 0;
}
void FakeSocket::Disconnect() {
NOTREACHED();
}
bool FakeSocket::IsConnected() const {
return true;
}
bool FakeSocket::IsConnectedAndIdle() const {
return false;
}
int FakeSocket::GetPeerAddress(net::IPEndPoint* address) const {
*address = peer_address_;
return net::OK;
}
int FakeSocket::GetLocalAddress(net::IPEndPoint* address) const {
*address = local_address_;
return net::OK;
}
const net::BoundNetLog& FakeSocket::NetLog() const {
NOTREACHED();
return net_log_;
}
void FakeSocket::SetSubresourceSpeculation() {
NOTREACHED();
}
void FakeSocket::SetOmniboxSpeculation() {
NOTREACHED();
}
bool FakeSocket::WasEverUsed() const {
return true;
}
bool FakeSocket::UsingTCPFastOpen() const {
return false;
}
bool FakeSocket::WasNpnNegotiated() const {
return false;
}
net::NextProto FakeSocket::GetNegotiatedProtocol() const {
return net::kProtoUnknown;
}
bool FakeSocket::GetSSLInfo(net::SSLInfo* ssl_info) {
return false;
}
void FakeSocket::GetConnectionAttempts(net::ConnectionAttempts* out) const {
out->clear();
}
void CreateRandomPacket(std::vector<char>* packet) {
size_t size = kStunHeaderSize + rand() % 1000;
packet->resize(size);
for (size_t i = 0; i < size; i++) {
(*packet)[i] = rand() % 256;
}
// Always set the first bit to ensure that generated packet is not
// valid STUN packet.
(*packet)[0] = (*packet)[0] | 0x80;
}
static void CreateStunPacket(std::vector<char>* packet, uint16 type) {
CreateRandomPacket(packet);
*reinterpret_cast<uint16*>(&*packet->begin()) = base::HostToNet16(type);
*reinterpret_cast<uint16*>(&*packet->begin() + 2) =
base::HostToNet16(packet->size() - kStunHeaderSize);
*reinterpret_cast<uint32*>(&*packet->begin() + 4) =
base::HostToNet32(kStunMagicCookie);
}
void CreateStunRequest(std::vector<char>* packet) {
CreateStunPacket(packet, kStunBindingRequest);
}
void CreateStunResponse(std::vector<char>* packet) {
CreateStunPacket(packet, kStunBindingResponse);
}
void CreateStunError(std::vector<char>* packet) {
CreateStunPacket(packet, kStunBindingError);
}
net::IPEndPoint ParseAddress(const std::string& ip_str, uint16 port) {
net::IPAddressNumber ip;
EXPECT_TRUE(net::ParseIPLiteralToNumber(ip_str, &ip));
return net::IPEndPoint(ip, port);
}
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