// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//    * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//    * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//    * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "net/base/address_list.h"
#include "net/base/host_resolver.h"
#include "net/base/net_errors.h"
#include "net/base/ssl_client_socket.h"
#include "net/base/tcp_client_socket.h"
#include "net/base/test_completion_callback.h"
#include "testing/gtest/include/gtest/gtest.h"

//-----------------------------------------------------------------------------

namespace {

class SSLClientSocketTest : public testing::Test {
};

}  // namespace

//-----------------------------------------------------------------------------

TEST_F(SSLClientSocketTest, Connect) {
  net::AddressList addr;
  net::HostResolver resolver;
  TestCompletionCallback callback;

  std::string hostname = "www.verisign.com";
  int rv = resolver.Resolve(hostname, 443, &addr, NULL);
  EXPECT_EQ(net::OK, rv);

  net::SSLClientSocket sock(new net::TCPClientSocket(addr), hostname);

  EXPECT_FALSE(sock.IsConnected());

  rv = sock.Connect(&callback);
  if (rv != net::OK) {
    ASSERT_EQ(net::ERR_IO_PENDING, rv);

    rv = callback.WaitForResult();
    EXPECT_EQ(net::OK, rv);
  }

  EXPECT_TRUE(sock.IsConnected());

  sock.Disconnect();
  EXPECT_FALSE(sock.IsConnected());
}

#if 0
TEST_F(SSLClientSocketTest, Read) {
  net::AddressList addr;
  net::HostResolver resolver;
  TestCompletionCallback callback;

  std::string hostname = "www.google.com";
  int rv = resolver.Resolve(hostname, 443, &addr, &callback);
  EXPECT_EQ(rv, net::ERR_IO_PENDING);

  rv = callback.WaitForResult();
  EXPECT_EQ(rv, net::OK);

  net::SSLClientSocket sock(new net::TCPClientSocket(addr), hostname);

  rv = sock.Connect(&callback);
  if (rv != net::OK) {
    ASSERT_EQ(rv, net::ERR_IO_PENDING);

    rv = callback.WaitForResult();
    EXPECT_EQ(rv, net::OK);
  }

  const char request_text[] = "GET / HTTP/1.0\r\n\r\n";
  rv = sock.Write(request_text, arraysize(request_text) - 1, &callback);
  EXPECT_TRUE(rv >= 0 || rv == net::ERR_IO_PENDING);

  if (rv == net::ERR_IO_PENDING) {
    rv = callback.WaitForResult();
    EXPECT_EQ(rv, arraysize(request_text) - 1);
  }

  char buf[4096];
  for (;;) {
    rv = sock.Read(buf, sizeof(buf), &callback);
    EXPECT_TRUE(rv >= 0 || rv == net::ERR_IO_PENDING);

    if (rv == net::ERR_IO_PENDING)
      rv = callback.WaitForResult();

    EXPECT_GE(rv, 0);
    if (rv <= 0)
      break;
  }
}

TEST_F(SSLClientSocketTest, Read_SmallChunks) {
  net::AddressList addr;
  net::HostResolver resolver;
  TestCompletionCallback callback;

  int rv = resolver.Resolve("www.google.com", 80, &addr, NULL);
  EXPECT_EQ(rv, net::OK);

  net::TCPClientSocket sock(addr);

  rv = sock.Connect(&callback);
  if (rv != net::OK) {
    ASSERT_EQ(rv, net::ERR_IO_PENDING);

    rv = callback.WaitForResult();
    EXPECT_EQ(rv, net::OK);
  }

  const char request_text[] = "GET / HTTP/1.0\r\n\r\n";
  rv = sock.Write(request_text, arraysize(request_text) - 1, &callback);
  EXPECT_TRUE(rv >= 0 || rv == net::ERR_IO_PENDING);

  if (rv == net::ERR_IO_PENDING) {
    rv = callback.WaitForResult();
    EXPECT_EQ(rv, arraysize(request_text) - 1);
  }

  char buf[1];
  for (;;) {
    rv = sock.Read(buf, sizeof(buf), &callback);
    EXPECT_TRUE(rv >= 0 || rv == net::ERR_IO_PENDING);

    if (rv == net::ERR_IO_PENDING)
      rv = callback.WaitForResult();

    EXPECT_GE(rv, 0);
    if (rv <= 0)
      break;
  }
}

TEST_F(SSLClientSocketTest, Read_Interrupted) {
  net::AddressList addr;
  net::HostResolver resolver;
  TestCompletionCallback callback;

  int rv = resolver.Resolve("www.google.com", 80, &addr, NULL);
  EXPECT_EQ(rv, net::OK);

  net::TCPClientSocket sock(addr);

  rv = sock.Connect(&callback);
  if (rv != net::OK) {
    ASSERT_EQ(rv, net::ERR_IO_PENDING);

    rv = callback.WaitForResult();
    EXPECT_EQ(rv, net::OK);
  }

  const char request_text[] = "GET / HTTP/1.0\r\n\r\n";
  rv = sock.Write(request_text, arraysize(request_text) - 1, &callback);
  EXPECT_TRUE(rv >= 0 || rv == net::ERR_IO_PENDING);

  if (rv == net::ERR_IO_PENDING) {
    rv = callback.WaitForResult();
    EXPECT_EQ(rv, arraysize(request_text) - 1);
  }

  // Do a partial read and then exit.  This test should not crash!
  char buf[512];
  rv = sock.Read(buf, sizeof(buf), &callback);
  EXPECT_TRUE(rv >= 0 || rv == net::ERR_IO_PENDING);

  if (rv == net::ERR_IO_PENDING)
    rv = callback.WaitForResult();

  EXPECT_NE(rv, 0);
}
#endif