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// Copyright (c) 2012 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/http/http_network_layer.h"
#include "base/strings/stringprintf.h"
#include "net/cert/mock_cert_verifier.h"
#include "net/dns/mock_host_resolver.h"
#include "net/http/http_network_session.h"
#include "net/http/http_server_properties_impl.h"
#include "net/http/http_transaction_test_util.h"
#include "net/http/transport_security_state.h"
#include "net/log/net_log.h"
#include "net/proxy/proxy_service.h"
#include "net/socket/socket_test_util.h"
#include "net/spdy/spdy_session_pool.h"
#include "net/ssl/ssl_config_service_defaults.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"
namespace net {
namespace {
class HttpNetworkLayerTest : public PlatformTest {
protected:
HttpNetworkLayerTest() : ssl_config_service_(new SSLConfigServiceDefaults) {}
void SetUp() override {
ConfigureTestDependencies(ProxyService::CreateDirect());
}
void ConfigureTestDependencies(scoped_ptr<ProxyService> proxy_service) {
cert_verifier_.reset(new MockCertVerifier);
transport_security_state_.reset(new TransportSecurityState);
proxy_service_ = proxy_service.Pass();
HttpNetworkSession::Params session_params;
session_params.client_socket_factory = &mock_socket_factory_;
session_params.host_resolver = &host_resolver_;
session_params.cert_verifier = cert_verifier_.get();
session_params.transport_security_state = transport_security_state_.get();
session_params.proxy_service = proxy_service_.get();
session_params.ssl_config_service = ssl_config_service_.get();
session_params.http_server_properties =
http_server_properties_.GetWeakPtr();
network_session_.reset(new HttpNetworkSession(session_params));
factory_.reset(new HttpNetworkLayer(network_session_.get()));
}
void ExecuteRequestExpectingContentAndHeader(const std::string& method,
const std::string& content,
const std::string& header,
const std::string& value) {
TestCompletionCallback callback;
HttpRequestInfo request_info;
request_info.url = GURL("http://www.google.com/");
request_info.method = method;
request_info.load_flags = LOAD_NORMAL;
scoped_ptr<HttpTransaction> trans;
int rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
EXPECT_EQ(OK, rv);
rv = trans->Start(&request_info, callback.callback(), BoundNetLog());
if (rv == ERR_IO_PENDING)
rv = callback.WaitForResult();
ASSERT_EQ(OK, rv);
std::string contents;
rv = ReadTransaction(trans.get(), &contents);
EXPECT_EQ(OK, rv);
EXPECT_EQ(content, contents);
if (!header.empty()) {
// We also have a server header here that isn't set by the proxy.
EXPECT_TRUE(trans->GetResponseInfo()->headers->HasHeaderValue(
header, value));
}
}
// Check that |proxy_count| proxies are in the retry list.
// These will be, in order, |bad_proxy| and |bad_proxy2|".
void TestBadProxies(unsigned int proxy_count, const std::string& bad_proxy,
const std::string& bad_proxy2) {
const ProxyRetryInfoMap& retry_info = proxy_service_->proxy_retry_info();
ASSERT_EQ(proxy_count, retry_info.size());
if (proxy_count > 0)
ASSERT_TRUE(retry_info.find(bad_proxy) != retry_info.end());
if (proxy_count > 1)
ASSERT_TRUE(retry_info.find(bad_proxy2) != retry_info.end());
}
// Simulates a request through a proxy which returns a bypass, which is then
// retried through a second proxy that doesn't bypass.
// Checks that the expected requests were issued, the expected content was
// received, and the first proxy |bad_proxy| was marked as bad.
void TestProxyFallback(const std::string& bad_proxy) {
MockRead data_reads[] = {
MockRead("HTTP/1.1 200 OK\r\n"
"Chrome-Proxy: bypass=0\r\n\r\n"),
MockRead("Bypass message"),
MockRead(SYNCHRONOUS, OK),
};
TestProxyFallbackWithMockReads(bad_proxy, "", data_reads,
arraysize(data_reads), 1u);
}
void TestProxyFallbackWithMockReads(const std::string& bad_proxy,
const std::string& bad_proxy2,
MockRead data_reads[],
int data_reads_size,
unsigned int expected_retry_info_size) {
TestProxyFallbackByMethodWithMockReads(bad_proxy, bad_proxy2, data_reads,
data_reads_size, "GET", "content",
true, expected_retry_info_size);
}
void TestProxyFallbackByMethodWithMockReads(
const std::string& bad_proxy,
const std::string& bad_proxy2,
MockRead data_reads[],
int data_reads_size,
std::string method,
std::string content,
bool retry_expected,
unsigned int expected_retry_info_size) {
std::string trailer =
(method == "HEAD" || method == "PUT" || method == "POST") ?
"Content-Length: 0\r\n\r\n" : "\r\n";
std::string request =
base::StringPrintf("%s http://www.google.com/ HTTP/1.1\r\n"
"Host: www.google.com\r\n"
"Proxy-Connection: keep-alive\r\n"
"%s", method.c_str(), trailer.c_str());
MockWrite data_writes[] = {
MockWrite(request.c_str()),
};
StaticSocketDataProvider data1(data_reads, data_reads_size,
data_writes, arraysize(data_writes));
mock_socket_factory_.AddSocketDataProvider(&data1);
// Second data provider returns the expected content.
MockRead data_reads2[3];
size_t data_reads2_index = 0;
data_reads2[data_reads2_index++] = MockRead("HTTP/1.0 200 OK\r\n"
"Server: not-proxy\r\n\r\n");
if (!content.empty())
data_reads2[data_reads2_index++] = MockRead(content.c_str());
data_reads2[data_reads2_index++] = MockRead(SYNCHRONOUS, OK);
MockWrite data_writes2[] = {
MockWrite(request.c_str()),
};
StaticSocketDataProvider data2(data_reads2, data_reads2_index,
data_writes2, arraysize(data_writes2));
mock_socket_factory_.AddSocketDataProvider(&data2);
// Expect that we get "content" and not "Bypass message", and that there's
// a "not-proxy" "Server:" header in the final response.
if (retry_expected) {
ExecuteRequestExpectingContentAndHeader(method, content,
"server", "not-proxy");
} else {
ExecuteRequestExpectingContentAndHeader(method, content, "", "");
}
// We should also observe the bad proxy in the retry list.
TestBadProxies(expected_retry_info_size, bad_proxy, bad_proxy2);
}
// Simulates a request through a proxy which returns a bypass, which is then
// retried through a direct connection to the origin site.
// Checks that the expected requests were issued, the expected content was
// received, and the proxy |bad_proxy| was marked as bad.
void TestProxyFallbackToDirect(const std::string& bad_proxy) {
MockRead data_reads[] = {
MockRead("HTTP/1.1 200 OK\r\n"
"Chrome-Proxy: bypass=0\r\n\r\n"),
MockRead("Bypass message"),
MockRead(SYNCHRONOUS, OK),
};
MockWrite data_writes[] = {
MockWrite("GET http://www.google.com/ HTTP/1.1\r\n"
"Host: www.google.com\r\n"
"Proxy-Connection: keep-alive\r\n\r\n"),
};
StaticSocketDataProvider data1(data_reads, arraysize(data_reads),
data_writes, arraysize(data_writes));
mock_socket_factory_.AddSocketDataProvider(&data1);
// Second data provider returns the expected content.
MockRead data_reads2[] = {
MockRead("HTTP/1.0 200 OK\r\n"
"Server: not-proxy\r\n\r\n"),
MockRead("content"),
MockRead(SYNCHRONOUS, OK),
};
MockWrite data_writes2[] = {
MockWrite("GET / HTTP/1.1\r\n"
"Host: www.google.com\r\n"
"Connection: keep-alive\r\n\r\n"),
};
StaticSocketDataProvider data2(data_reads2, arraysize(data_reads2),
data_writes2, arraysize(data_writes2));
mock_socket_factory_.AddSocketDataProvider(&data2);
// Expect that we get "content" and not "Bypass message", and that there's
// a "not-proxy" "Server:" header in the final response.
ExecuteRequestExpectingContentAndHeader("GET", "content",
"server", "not-proxy");
// We should also observe the bad proxy in the retry list.
TestBadProxies(1u, bad_proxy, "");
}
// Simulates a request through a proxy which returns a bypass, under a
// configuration where there is no valid bypass. |proxy_count| proxies
// are expected to be configured.
// Checks that the expected requests were issued, the bypass message was the
// final received content, and all proxies were marked as bad.
void TestProxyFallbackFail(unsigned int proxy_count,
const std::string& bad_proxy,
const std::string& bad_proxy2) {
MockRead data_reads[] = {
MockRead("HTTP/1.1 200 OK\r\n"
"Chrome-Proxy: bypass=0\r\n\r\n"),
MockRead("Bypass message"),
MockRead(SYNCHRONOUS, OK),
};
MockWrite data_writes[] = {
MockWrite("GET http://www.google.com/ HTTP/1.1\r\n"
"Host: www.google.com\r\n"
"Proxy-Connection: keep-alive\r\n\r\n"),
};
StaticSocketDataProvider data1(data_reads, arraysize(data_reads),
data_writes, arraysize(data_writes));
StaticSocketDataProvider data2(data_reads, arraysize(data_reads),
data_writes, arraysize(data_writes));
mock_socket_factory_.AddSocketDataProvider(&data1);
if (proxy_count > 1)
mock_socket_factory_.AddSocketDataProvider(&data2);
// Expect that we get "Bypass message", and not "content"..
ExecuteRequestExpectingContentAndHeader("GET", "Bypass message", "", "");
// We should also observe the bad proxy or proxies in the retry list.
TestBadProxies(proxy_count, bad_proxy, bad_proxy2);
}
MockClientSocketFactory mock_socket_factory_;
MockHostResolver host_resolver_;
scoped_ptr<CertVerifier> cert_verifier_;
scoped_ptr<TransportSecurityState> transport_security_state_;
scoped_ptr<ProxyService> proxy_service_;
const scoped_refptr<SSLConfigService> ssl_config_service_;
scoped_ptr<HttpNetworkSession> network_session_;
scoped_ptr<HttpNetworkLayer> factory_;
HttpServerPropertiesImpl http_server_properties_;
};
TEST_F(HttpNetworkLayerTest, CreateAndDestroy) {
scoped_ptr<HttpTransaction> trans;
int rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
EXPECT_EQ(OK, rv);
EXPECT_TRUE(trans.get() != NULL);
}
TEST_F(HttpNetworkLayerTest, Suspend) {
scoped_ptr<HttpTransaction> trans;
int rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
EXPECT_EQ(OK, rv);
trans.reset();
factory_->OnSuspend();
rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
EXPECT_EQ(ERR_NETWORK_IO_SUSPENDED, rv);
ASSERT_TRUE(trans == NULL);
factory_->OnResume();
rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
EXPECT_EQ(OK, rv);
}
TEST_F(HttpNetworkLayerTest, GET) {
MockRead data_reads[] = {
MockRead("HTTP/1.0 200 OK\r\n\r\n"),
MockRead("hello world"),
MockRead(SYNCHRONOUS, OK),
};
MockWrite data_writes[] = {
MockWrite("GET / HTTP/1.1\r\n"
"Host: www.google.com\r\n"
"Connection: keep-alive\r\n"
"User-Agent: Foo/1.0\r\n\r\n"),
};
StaticSocketDataProvider data(data_reads, arraysize(data_reads),
data_writes, arraysize(data_writes));
mock_socket_factory_.AddSocketDataProvider(&data);
TestCompletionCallback callback;
HttpRequestInfo request_info;
request_info.url = GURL("http://www.google.com/");
request_info.method = "GET";
request_info.extra_headers.SetHeader(HttpRequestHeaders::kUserAgent,
"Foo/1.0");
request_info.load_flags = LOAD_NORMAL;
scoped_ptr<HttpTransaction> trans;
int rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
EXPECT_EQ(OK, rv);
rv = trans->Start(&request_info, callback.callback(), BoundNetLog());
rv = callback.GetResult(rv);
ASSERT_EQ(OK, rv);
std::string contents;
rv = ReadTransaction(trans.get(), &contents);
EXPECT_EQ(OK, rv);
EXPECT_EQ("hello world", contents);
}
TEST_F(HttpNetworkLayerTest, NetworkVerified) {
MockRead data_reads[] = {
MockRead("HTTP/1.0 200 OK\r\n\r\n"),
MockRead("hello world"),
MockRead(SYNCHRONOUS, OK),
};
MockWrite data_writes[] = {
MockWrite("GET / HTTP/1.1\r\n"
"Host: www.google.com\r\n"
"Connection: keep-alive\r\n"
"User-Agent: Foo/1.0\r\n\r\n"),
};
StaticSocketDataProvider data(data_reads, arraysize(data_reads),
data_writes, arraysize(data_writes));
mock_socket_factory_.AddSocketDataProvider(&data);
TestCompletionCallback callback;
HttpRequestInfo request_info;
request_info.url = GURL("http://www.google.com/");
request_info.method = "GET";
request_info.extra_headers.SetHeader(HttpRequestHeaders::kUserAgent,
"Foo/1.0");
request_info.load_flags = LOAD_NORMAL;
scoped_ptr<HttpTransaction> trans;
int rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
EXPECT_EQ(OK, rv);
rv = trans->Start(&request_info, callback.callback(), BoundNetLog());
ASSERT_EQ(OK, callback.GetResult(rv));
EXPECT_TRUE(trans->GetResponseInfo()->network_accessed);
}
TEST_F(HttpNetworkLayerTest, NetworkUnVerified) {
MockRead data_reads[] = {
MockRead(ASYNC, ERR_CONNECTION_RESET),
};
MockWrite data_writes[] = {
MockWrite("GET / HTTP/1.1\r\n"
"Host: www.google.com\r\n"
"Connection: keep-alive\r\n"
"User-Agent: Foo/1.0\r\n\r\n"),
};
StaticSocketDataProvider data(data_reads, arraysize(data_reads),
data_writes, arraysize(data_writes));
mock_socket_factory_.AddSocketDataProvider(&data);
TestCompletionCallback callback;
HttpRequestInfo request_info;
request_info.url = GURL("http://www.google.com/");
request_info.method = "GET";
request_info.extra_headers.SetHeader(HttpRequestHeaders::kUserAgent,
"Foo/1.0");
request_info.load_flags = LOAD_NORMAL;
scoped_ptr<HttpTransaction> trans;
int rv = factory_->CreateTransaction(DEFAULT_PRIORITY, &trans);
EXPECT_EQ(OK, rv);
rv = trans->Start(&request_info, callback.callback(), BoundNetLog());
ASSERT_EQ(ERR_CONNECTION_RESET, callback.GetResult(rv));
// network_accessed is true; the HTTP stack did try to make a connection.
EXPECT_TRUE(trans->GetResponseInfo()->network_accessed);
}
} // namespace
} // namespace net
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