content/browser/renderer_host/p2p/socket_host_test_utils.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/renderer_host/p2p/socket_host_test_utils.h"
   6
   7 #include "base/sys_byteorder.h"
   8 #include "base/thread_task_runner_handle.h"
   9 #include "net/base/completion_callback.h"
  10 #include "net/base/io_buffer.h"
  11
  12 const int kStunHeaderSize = 20;
  13 const uint16 kStunBindingRequest = 0x0001;
  14 const uint16 kStunBindingResponse = 0x0102;
  15 const uint16 kStunBindingError = 0x0111;
  16 const uint32 kStunMagicCookie = 0x2112A442;
  17
  18 MockIPCSender::MockIPCSender() { }
  19 MockIPCSender::~MockIPCSender() { }
  20
  21 FakeSocket::FakeSocket(std::string* written_data)
  22     : read_pending_(false),
  23       input_pos_(0),
  24       written_data_(written_data),
  25       async_write_(false),
  26       write_pending_(false) {
  27 }
  28
  29 FakeSocket::~FakeSocket() { }
  30
  31 void FakeSocket::AppendInputData(const char* data, int data_size) {
  32   input_data_.insert(input_data_.end(), data, data + data_size);
  33   // Complete pending read if any.
  34   if (read_pending_) {
  35     read_pending_ = false;
  36     int result = std::min(read_buffer_size_,
  37                           static_cast<int>(input_data_.size() - input_pos_));
  38     CHECK(result > 0);
  39     memcpy(read_buffer_->data(), &input_data_[0] + input_pos_, result);
  40     input_pos_ += result;
  41     read_buffer_ = NULL;
  42     net::CompletionCallback cb = read_callback_;
  43     read_callback_.Reset();
  44     cb.Run(result);
  45   }
  46 }
  47
  48 void FakeSocket::SetPeerAddress(const net::IPEndPoint& peer_address) {
  49   peer_address_ = peer_address;
  50 }
  51
  52 void FakeSocket::SetLocalAddress(const net::IPEndPoint& local_address) {
  53   local_address_ = local_address;
  54 }
  55
  56 int FakeSocket::Read(net::IOBuffer* buf, int buf_len,
  57                      const net::CompletionCallback& callback) {
  58   DCHECK(buf);
  59   if (input_pos_ < static_cast<int>(input_data_.size())){
  60     int result = std::min(buf_len,
  61                           static_cast<int>(input_data_.size()) - input_pos_);
  62     memcpy(buf->data(), &(*input_data_.begin()) + input_pos_, result);
  63     input_pos_ += result;
  64     return result;
  65   } else {
  66     read_pending_ = true;
  67     read_buffer_ = buf;
  68     read_buffer_size_ = buf_len;
  69     read_callback_ = callback;
  70     return net::ERR_IO_PENDING;
  71   }
  72 }
  73
  74 int FakeSocket::Write(net::IOBuffer* buf, int buf_len,
  75                       const net::CompletionCallback& callback) {
  76   DCHECK(buf);
  77   DCHECK(!write_pending_);
  78
  79   if (async_write_) {
  80
  81     base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, base::Bind(
  82         &FakeSocket::DoAsyncWrite, base::Unretained(this),
  83         scoped_refptr<net::IOBuffer>(buf), buf_len, callback));
  84     write_pending_ = true;
  85     return net::ERR_IO_PENDING;
  86   }
  87
  88   if (written_data_) {
  89     written_data_->insert(written_data_->end(),
  90                           buf->data(), buf->data() + buf_len);
  91   }
  92   return buf_len;
  93 }
  94
  95 void FakeSocket::DoAsyncWrite(scoped_refptr<net::IOBuffer> buf, int buf_len,
  96                               const net::CompletionCallback& callback) {
  97   write_pending_ = false;
  98
  99   if (written_data_) {
 100     written_data_->insert(written_data_->end(),
 101                           buf->data(), buf->data() + buf_len);
 102   }
 103   callback.Run(buf_len);
 104 }
 105
 106 int FakeSocket::SetReceiveBufferSize(int32 size) {
 107   NOTIMPLEMENTED();
 108   return net::ERR_NOT_IMPLEMENTED;
 109 }
 110
 111 int FakeSocket::SetSendBufferSize(int32 size) {
 112   NOTIMPLEMENTED();
 113   return net::ERR_NOT_IMPLEMENTED;
 114 }
 115
 116 int FakeSocket::Connect(const net::CompletionCallback& callback) {
 117   return 0;
 118 }
 119
 120 void FakeSocket::Disconnect() {
 121   NOTREACHED();
 122 }
 123
 124 bool FakeSocket::IsConnected() const {
 125   return true;
 126 }
 127
 128 bool FakeSocket::IsConnectedAndIdle() const {
 129   return false;
 130 }
 131
 132 int FakeSocket::GetPeerAddress(net::IPEndPoint* address) const {
 133   *address = peer_address_;
 134   return net::OK;
 135 }
 136
 137 int FakeSocket::GetLocalAddress(net::IPEndPoint* address) const {
 138   *address = local_address_;
 139   return net::OK;
 140 }
 141
 142 const net::BoundNetLog& FakeSocket::NetLog() const {
 143   NOTREACHED();
 144   return net_log_;
 145 }
 146
 147 void FakeSocket::SetSubresourceSpeculation() {
 148   NOTREACHED();
 149 }
 150
 151 void FakeSocket::SetOmniboxSpeculation() {
 152   NOTREACHED();
 153 }
 154
 155 bool FakeSocket::WasEverUsed() const {
 156   return true;
 157 }
 158
 159 bool FakeSocket::UsingTCPFastOpen() const {
 160   return false;
 161 }
 162
 163 bool FakeSocket::WasNpnNegotiated() const {
 164   return false;
 165 }
 166
 167 net::NextProto FakeSocket::GetNegotiatedProtocol() const {
 168   return net::kProtoUnknown;
 169 }
 170
 171 bool FakeSocket::GetSSLInfo(net::SSLInfo* ssl_info) {
 172   return false;
 173 }
 174
 175 void FakeSocket::GetConnectionAttempts(net::ConnectionAttempts* out) const {
 176   out->clear();
 177 }
 178
 179 void CreateRandomPacket(std::vector<char>* packet) {
 180   size_t size = kStunHeaderSize + rand() % 1000;
 181   packet->resize(size);
 182   for (size_t i = 0; i < size; i++) {
 183     (*packet)[i] = rand() % 256;
 184   }
 185   // Always set the first bit to ensure that generated packet is not
 186   // valid STUN packet.
 187   (*packet)[0] = (*packet)[0] | 0x80;
 188 }
 189
 190 static void CreateStunPacket(std::vector<char>* packet, uint16 type) {
 191   CreateRandomPacket(packet);
 192   *reinterpret_cast<uint16*>(&*packet->begin()) = base::HostToNet16(type);
 193   *reinterpret_cast<uint16*>(&*packet->begin() + 2) =
 194       base::HostToNet16(packet->size() - kStunHeaderSize);
 195   *reinterpret_cast<uint32*>(&*packet->begin() + 4) =
 196       base::HostToNet32(kStunMagicCookie);
 197 }
 198
 199 void CreateStunRequest(std::vector<char>* packet) {
 200   CreateStunPacket(packet, kStunBindingRequest);
 201 }
 202
 203 void CreateStunResponse(std::vector<char>* packet) {
 204   CreateStunPacket(packet, kStunBindingResponse);
 205 }
 206
 207 void CreateStunError(std::vector<char>* packet) {
 208   CreateStunPacket(packet, kStunBindingError);
 209 }
 210
 211 net::IPEndPoint ParseAddress(const std::string ip_str, uint16 port) {
 212   net::IPAddressNumber ip;
 213   EXPECT_TRUE(net::ParseIPLiteralToNumber(ip_str, &ip));
 214   return net::IPEndPoint(ip, port);
 215 }