Merge 34903, 34928, 35008, 35549, 36054 to the 249s branch....

net/socket/socks5_client_socket_unittest.cc

 // Copyright (c) 2009 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/socket/socks5_client_socket.h"
 
+#include <algorithm>
 #include <map>
 #include "build/build_config.h"
 #if defined(OS_WIN)
 #include <ws2tcpip.h>
 #elif defined(OS_POSIX)
 #include <netdb.h>
 #endif
 #include "net/base/address_list.h"
 #include "net/base/load_log.h"
 #include "net/base/load_log_unittest.h"
 #include "net/base/mock_host_resolver.h"
 #include "net/base/test_completion_callback.h"
 #include "net/base/winsock_init.h"
 #include "net/socket/client_socket_factory.h"
 #include "net/socket/socket_test_util.h"
 #include "net/socket/tcp_client_socket.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
 //-----------------------------------------------------------------------------
 
 namespace net {
 
+namespace {
+
 // Base class to test SOCKS5ClientSocket
 class SOCKS5ClientSocketTest : public PlatformTest {
  public:
   SOCKS5ClientSocketTest();
   // Create a SOCKSClientSocket on top of a MockSocket.
   SOCKS5ClientSocket* BuildMockSocket(MockRead reads[],
                                       MockWrite writes[],
                                       const std::string& hostname,
                                       int port);
+
   virtual void SetUp();
 
  protected:
   const uint16 kNwPort;
   scoped_ptr<SOCKS5ClientSocket> user_sock_;
   AddressList address_list_;
   ClientSocket* tcp_sock_;
   TestCompletionCallback callback_;
   scoped_refptr<MockHostResolver> host_resolver_;
   scoped_ptr<SocketDataProvider> data_;
@@ skipping 14 matching lines @@
   HostResolver::RequestInfo info("www.socks-proxy.com", 1080);
   int rv = host_resolver_->Resolve(info, &address_list_, NULL, NULL, NULL);
   ASSERT_EQ(OK, rv);
 }
 
 SOCKS5ClientSocket* SOCKS5ClientSocketTest::BuildMockSocket(
     MockRead reads[],
     MockWrite writes[],
     const std::string& hostname,
     int port) {
-
   TestCompletionCallback callback;
   data_.reset(new StaticSocketDataProvider(reads, writes));
   tcp_sock_ = new MockTCPClientSocket(address_list_, data_.get());
 
   int rv = tcp_sock_->Connect(&callback, NULL);
   EXPECT_EQ(ERR_IO_PENDING, rv);
   rv = callback.WaitForResult();
   EXPECT_EQ(OK, rv);
   EXPECT_TRUE(tcp_sock_->IsConnected());
 
   return new SOCKS5ClientSocket(tcp_sock_,
-      HostResolver::RequestInfo(hostname, port),
-      host_resolver_);
+      HostResolver::RequestInfo(hostname, port));
 }
 
 const char kSOCKS5GreetRequest[] = { 0x05, 0x01, 0x00 };
 const char kSOCKS5GreetResponse[] = { 0x05, 0x00 };
-
-const char kSOCKS5OkRequest[] =
-    { 0x05, 0x01, 0x00, 0x01, 127, 0, 0, 1, 0x00, 0x50 };
 const char kSOCKS5OkResponse[] =
     { 0x05, 0x00, 0x00, 0x01, 127, 0, 0, 1, 0x00, 0x50 };
 
+
 // Tests a complete SOCKS5 handshake and the disconnection.
 TEST_F(SOCKS5ClientSocketTest, CompleteHandshake) {
   const std::string payload_write = "random data";
   const std::string payload_read = "moar random data";
 
+  const char kSOCKS5OkRequest[] = {
+    0x05,  // Version
+    0x01,  // Command (CONNECT)
+    0x00,  // Reserved.
+    0x03,  // Address type (DOMAINNAME).
+    0x09,  // Length of domain (9)
+    // Domain string:
+    'l', 'o', 'c', 'a', 'l', 'h', 'o', 's', 't',
+    0x00, 0x50,  // 16-bit port (80)
+  };
+
   MockWrite data_writes[] = {
       MockWrite(true, kSOCKS5GreetRequest, arraysize(kSOCKS5GreetRequest)),
       MockWrite(true, kSOCKS5OkRequest, arraysize(kSOCKS5OkRequest)),
       MockWrite(true, payload_write.data(), payload_write.size()) };
   MockRead data_reads[] = {
       MockRead(true, kSOCKS5GreetResponse, arraysize(kSOCKS5GreetResponse)),
       MockRead(true, kSOCKS5OkResponse, arraysize(kSOCKS5OkResponse)),
       MockRead(true, payload_read.data(), payload_read.size()) };
 
   user_sock_.reset(BuildMockSocket(data_reads, data_writes, "localhost", 80));
 
   // At this state the TCP connection is completed but not the SOCKS handshake.
   EXPECT_TRUE(tcp_sock_->IsConnected());
   EXPECT_FALSE(user_sock_->IsConnected());
 
   scoped_refptr<LoadLog> log(new LoadLog(LoadLog::kUnbounded));
   int rv = user_sock_->Connect(&callback_, log);
   EXPECT_EQ(ERR_IO_PENDING, rv);
   EXPECT_FALSE(user_sock_->IsConnected());
   EXPECT_TRUE(
       LogContains(*log, 0, LoadLog::TYPE_SOCKS5_CONNECT, LoadLog::PHASE_BEGIN));
 
   rv = callback_.WaitForResult();
 
   EXPECT_EQ(OK, rv);
   EXPECT_TRUE(user_sock_->IsConnected());
-  EXPECT_EQ(SOCKS5ClientSocket::kEndPointResolvedIPv4,
-            user_sock_->address_type_);
   EXPECT_TRUE(LogContains(
       *log, -1, LoadLog::TYPE_SOCKS5_CONNECT, LoadLog::PHASE_END));
 
   scoped_refptr<IOBuffer> buffer = new IOBuffer(payload_write.size());
   memcpy(buffer->data(), payload_write.data(), payload_write.size());
   rv = user_sock_->Write(buffer, payload_write.size(), &callback_);
   EXPECT_EQ(ERR_IO_PENDING, rv);
   rv = callback_.WaitForResult();
   EXPECT_EQ(static_cast<int>(payload_write.size()), rv);
 
   buffer = new IOBuffer(payload_read.size());
   rv = user_sock_->Read(buffer, payload_read.size(), &callback_);
   EXPECT_EQ(ERR_IO_PENDING, rv);
   rv = callback_.WaitForResult();
   EXPECT_EQ(static_cast<int>(payload_read.size()), rv);
   EXPECT_EQ(payload_read, std::string(buffer->data(), payload_read.size()));
 
   user_sock_->Disconnect();
   EXPECT_FALSE(tcp_sock_->IsConnected());
   EXPECT_FALSE(user_sock_->IsConnected());
 }
 
-// Tries to connect to a DNS which fails domain lookup.
-TEST_F(SOCKS5ClientSocketTest, FailedDNS) {
-  const std::string hostname = "unresolved.ipv4.address";
-  const char kSOCKS5DomainRequest[] = { 0x05, 0x01, 0x00, 0x03 };
+// Test that you can call Connect() again after having called Disconnect().
+TEST_F(SOCKS5ClientSocketTest, ConnectAndDisconnectTwice) {
+  const std::string hostname = "my-host-name";
+  const char kSOCKS5DomainRequest[] = {
+      0x05,  // VER
+      0x01,  // CMD
+      0x00,  // RSV
+      0x03,  // ATYPE
+  };
 
-  host_resolver_->rules()->AddSimulatedFailure(hostname.c_str());
-
-  std::string request(kSOCKS5DomainRequest,
-                      arraysize(kSOCKS5DomainRequest));
+  std::string request(kSOCKS5DomainRequest, arraysize(kSOCKS5DomainRequest));
   request.push_back(hostname.size());
   request.append(hostname);
   request.append(reinterpret_cast<const char*>(&kNwPort), sizeof(kNwPort));
 
-  MockWrite data_writes[] = {
-      MockWrite(false, kSOCKS5GreetRequest, arraysize(kSOCKS5GreetRequest)),
-      MockWrite(false, request.data(), request.size()) };
-  MockRead data_reads[] = {
-      MockRead(false, kSOCKS5GreetResponse, arraysize(kSOCKS5GreetResponse)),
-      MockRead(false, kSOCKS5OkResponse, arraysize(kSOCKS5OkResponse)) };
+  for (int i = 0; i < 2; ++i) {
+    MockWrite data_writes[] = {
+        MockWrite(false, kSOCKS5GreetRequest, arraysize(kSOCKS5GreetRequest)),
+        MockWrite(false, request.data(), request.size())
+    };
+    MockRead data_reads[] = {
+        MockRead(false, kSOCKS5GreetResponse, arraysize(kSOCKS5GreetResponse)),
+        MockRead(false, kSOCKS5OkResponse, arraysize(kSOCKS5OkResponse))
+    };
 
-  user_sock_.reset(BuildMockSocket(data_reads, data_writes, hostname, 80));
+    user_sock_.reset(BuildMockSocket(data_reads, data_writes, hostname, 80));
 
-  scoped_refptr<LoadLog> log(new LoadLog(LoadLog::kUnbounded));
-  int rv = user_sock_->Connect(&callback_, log);
-  EXPECT_EQ(ERR_IO_PENDING, rv);
-  EXPECT_TRUE(LogContains(
-      *log, 0, LoadLog::TYPE_SOCKS5_CONNECT, LoadLog::PHASE_BEGIN));
-  rv = callback_.WaitForResult();
-  EXPECT_EQ(OK, rv);
-  EXPECT_TRUE(user_sock_->IsConnected());
-  EXPECT_EQ(SOCKS5ClientSocket::kEndPointFailedDomain,
-            user_sock_->address_type_);
-  EXPECT_TRUE(LogContains(
-      *log, -1, LoadLog::TYPE_SOCKS5_CONNECT, LoadLog::PHASE_END));
+    int rv = user_sock_->Connect(&callback_, NULL);
+    EXPECT_EQ(OK, rv);
+    EXPECT_TRUE(user_sock_->IsConnected());
+
+    user_sock_->Disconnect();
+    EXPECT_FALSE(user_sock_->IsConnected());
+  }
 }
 
-// Tries to connect to a domain that resolves to IPv6.
-TEST_F(SOCKS5ClientSocketTest, IPv6Domain) {
-  const std::string hostname = "an.ipv6.address";
-  const char kSOCKS5IPv6Request[] = { 0x05, 0x01, 0x00, 0x04 };
-  const uint8 ipv6_addr[] = { 0x20, 0x01, 0x0d, 0xb8, 0x87, 0x14, 0x3a, 0x90,
-                              0x00, 0x00, 0x00, 0x00, 0x00, 0x000, 0x00, 0x12 };
+// Test that we fail trying to connect to a hosname longer than 255 bytes.
+TEST_F(SOCKS5ClientSocketTest, LargeHostNameFails) {
+  // Create a string of length 256, where each character is 'x'.
+  std::string large_host_name;
+  std::fill_n(std::back_inserter(large_host_name), 256, 'x');
 
-  host_resolver_->rules()->AddIPv6Rule(hostname, "2001:db8:8714:3a90::12");
+  // Create a SOCKS socket, with mock transport socket.
+  // (Data from these mocks will not be used).
+  MockWrite data_writes[] = {MockWrite(false, ERR_UNEXPECTED)};
+  MockRead data_reads[] = {MockRead(false, ERR_UNEXPECTED)};
+  user_sock_.reset(BuildMockSocket(data_reads, data_writes,
+                                   large_host_name, 80));
 
-  std::string request(kSOCKS5IPv6Request,
-                      arraysize(kSOCKS5IPv6Request));
-  request.append(reinterpret_cast<const char*>(&ipv6_addr), sizeof(ipv6_addr));
-  request.append(reinterpret_cast<const char*>(&kNwPort), sizeof(kNwPort));
-
-  MockWrite data_writes[] = {
-      MockWrite(false, kSOCKS5GreetRequest, arraysize(kSOCKS5GreetRequest)),
-      MockWrite(false, request.data(), request.size()) };
-  MockRead data_reads[] = {
-      MockRead(false, kSOCKS5GreetResponse, arraysize(kSOCKS5GreetResponse)),
-      MockRead(false, kSOCKS5OkResponse, arraysize(kSOCKS5OkResponse)) };
-
-  user_sock_.reset(BuildMockSocket(data_reads, data_writes, hostname, 80));
-
-  scoped_refptr<LoadLog> log(new LoadLog(LoadLog::kUnbounded));
-  int rv = user_sock_->Connect(&callback_, log);
-  EXPECT_EQ(ERR_IO_PENDING, rv);
-  EXPECT_TRUE(LogContains(
-      *log, 0, LoadLog::TYPE_SOCKS5_CONNECT, LoadLog::PHASE_BEGIN));
-  rv = callback_.WaitForResult();
-  EXPECT_EQ(OK, rv);
-  EXPECT_TRUE(user_sock_->IsConnected());
-  EXPECT_EQ(SOCKS5ClientSocket::kEndPointResolvedIPv6,
-            user_sock_->address_type_);
-  EXPECT_TRUE(LogContains(
-      *log, -1, LoadLog::TYPE_SOCKS5_CONNECT, LoadLog::PHASE_END));
+  // Try to connect -- should fail (without having read/written anything to
+  // the transport socket first) because the hostname is too long.
+  TestCompletionCallback callback;
+  int rv = user_sock_->Connect(&callback, NULL);
+  EXPECT_EQ(ERR_INVALID_URL, rv);
 }
 
 TEST_F(SOCKS5ClientSocketTest, PartialReadWrites) {
   const std::string hostname = "www.google.com";
 
+  const char kSOCKS5OkRequest[] = {
+    0x05,  // Version
+    0x01,  // Command (CONNECT)
+    0x00,  // Reserved.
+    0x03,  // Address type (DOMAINNAME).
+    0x0E,  // Length of domain (14)
+    // Domain string:
+    'w', 'w', 'w', '.', 'g', 'o', 'o', 'g', 'l', 'e', '.', 'c', 'o', 'm',
+    0x00, 0x50,  // 16-bit port (80)
+  };
+
   // Test for partial greet request write
   {
     const char partial1[] = { 0x05, 0x01 };
     const char partial2[] = { 0x00 };
     MockWrite data_writes[] = {
         MockWrite(true, arraysize(partial1)),
         MockWrite(true, partial2, arraysize(partial2)),
         MockWrite(true, kSOCKS5OkRequest, arraysize(kSOCKS5OkRequest)) };
     MockRead data_reads[] = {
         MockRead(true, kSOCKS5GreetResponse, arraysize(kSOCKS5GreetResponse)),
@@ skipping 28 matching lines @@
     EXPECT_EQ(ERR_IO_PENDING, rv);
     EXPECT_TRUE(LogContains(
         *log, 0, LoadLog::TYPE_SOCKS5_CONNECT, LoadLog::PHASE_BEGIN));
     rv = callback_.WaitForResult();
     EXPECT_EQ(OK, rv);
     EXPECT_TRUE(user_sock_->IsConnected());
     EXPECT_TRUE(LogContains(
         *log, -1, LoadLog::TYPE_SOCKS5_CONNECT, LoadLog::PHASE_END));
   }
 
-  // Test for partial handshake request write
+  // Test for partial handshake request write.
   {
-    const char partial1[] = { 0x05, 0x01, 0x00 };
-    const char partial2[] = { 0x01, 127, 0, 0, 1, 0x00, 0x50 };
+    // NOTE: in this branch MockWrite doesn't support partial successes, so
+    // the MockWrite must correspond exactly with the request.
+    const int kSplitPoint = arraysize(kSOCKS5OkRequest);
     MockWrite data_writes[] = {
         MockWrite(true, kSOCKS5GreetRequest, arraysize(kSOCKS5GreetRequest)),
-        MockWrite(true, arraysize(partial1)),
-        MockWrite(true, partial2, arraysize(partial2)) };
+        MockWrite(true, kSOCKS5OkRequest, kSplitPoint),
+        MockWrite(true, kSOCKS5OkRequest + kSplitPoint,
+                        arraysize(kSOCKS5OkRequest) - kSplitPoint)
+    };
     MockRead data_reads[] = {
         MockRead(true, kSOCKS5GreetResponse, arraysize(kSOCKS5GreetResponse)),
         MockRead(true, kSOCKS5OkResponse, arraysize(kSOCKS5OkResponse)) };
     user_sock_.reset(BuildMockSocket(data_reads, data_writes, hostname, 80));
     scoped_refptr<LoadLog> log(new LoadLog(LoadLog::kUnbounded));
     int rv = user_sock_->Connect(&callback_, log);
     EXPECT_EQ(ERR_IO_PENDING, rv);
     EXPECT_TRUE(LogContains(
         *log, 0, LoadLog::TYPE_SOCKS5_CONNECT, LoadLog::PHASE_BEGIN));
     rv = callback_.WaitForResult();
     EXPECT_EQ(OK, rv);
     EXPECT_TRUE(user_sock_->IsConnected());
     EXPECT_TRUE(LogContains(
         *log, -1, LoadLog::TYPE_SOCKS5_CONNECT, LoadLog::PHASE_END));
   }
 
   // Test for partial handshake response read
   {
-    const char partial1[] = { 0x05, 0x00, 0x00, 0x01, 127, 0 };
-    const char partial2[] = { 0, 1, 0x00, 0x50 };
+    const int kSplitPoint = 6;  // Break the handshake read into two parts.
     MockWrite data_writes[] = {
         MockWrite(true, kSOCKS5GreetRequest, arraysize(kSOCKS5GreetRequest)),
-        MockWrite(true, kSOCKS5OkRequest, arraysize(kSOCKS5OkRequest)) };
+        MockWrite(true, kSOCKS5OkRequest, arraysize(kSOCKS5OkRequest))
+    };
     MockRead data_reads[] = {
         MockRead(true, kSOCKS5GreetResponse, arraysize(kSOCKS5GreetResponse)),
-        MockRead(true, partial1, arraysize(partial1)),
-        MockRead(true, partial2, arraysize(partial2)) };
+        MockRead(true, kSOCKS5OkResponse, kSplitPoint),
+        MockRead(true, kSOCKS5OkResponse + kSplitPoint, arraysize(kSOCKS5OkResponse) - kSplitPoint)
+    };
+
     user_sock_.reset(BuildMockSocket(data_reads, data_writes, hostname, 80));
     scoped_refptr<LoadLog> log(new LoadLog(LoadLog::kUnbounded));
     int rv = user_sock_->Connect(&callback_, log);
     EXPECT_EQ(ERR_IO_PENDING, rv);
     EXPECT_TRUE(LogContains(
         *log, 0, LoadLog::TYPE_SOCKS5_CONNECT, LoadLog::PHASE_BEGIN));
     rv = callback_.WaitForResult();
     EXPECT_EQ(OK, rv);
     EXPECT_TRUE(user_sock_->IsConnected());
     EXPECT_TRUE(LogContains(
         *log, -1, LoadLog::TYPE_SOCKS5_CONNECT, LoadLog::PHASE_END));
   }
 }
 
+}  // namespace
+
 }  // namespace net