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// Copyright 2015 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 "services/network/proxy_service_mojo.h"
#include <algorithm>
#include <memory>
#include <string>
#include <utility>
#include "base/callback_helpers.h"
#include "base/memory/ptr_util.h"
#include "base/strings/utf_string_conversions.h"
#include "base/test/task_environment.h"
#include "base/values.h"
#include "build/build_config.h"
#include "net/base/completion_once_callback.h"
#include "net/base/network_delegate_impl.h"
#include "net/base/network_isolation_key.h"
#include "net/base/test_completion_callback.h"
#include "net/dns/mock_host_resolver.h"
#include "net/log/net_log_event_type.h"
#include "net/log/net_log_with_source.h"
#include "net/log/test_net_log.h"
#include "net/log/test_net_log_util.h"
#include "net/proxy_resolution/configured_proxy_resolution_service.h"
#include "net/proxy_resolution/dhcp_pac_file_fetcher.h"
#include "net/proxy_resolution/mock_pac_file_fetcher.h"
#include "net/proxy_resolution/proxy_config_service_fixed.h"
#include "net/proxy_resolution/proxy_resolution_request.h"
#include "net/test/event_waiter.h"
#include "net/test/gtest_util.h"
#include "net/traffic_annotation/network_traffic_annotation_test_helper.h"
#include "services/network/test_mojo_proxy_resolver_factory.h"
#include "services/proxy_resolver/public/mojom/proxy_resolver.mojom.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
using net::test::IsOk;
namespace network {
namespace {
const char kPacUrl[] = "http://example.com/proxy.pac";
const char kSimplePacScript[] =
"function FindProxyForURL(url, host) {\n"
" return 'PROXY foo:1234';\n"
"}";
const char kDnsResolvePacScript[] =
"function FindProxyForURL(url, host) {\n"
" if (dnsResolveEx('example.com') != '1.2.3.4')\n"
" return 'DIRECT';\n"
" return 'QUIC bar:4321';\n"
"}";
const char kThrowingPacScript[] =
"function FindProxyForURL(url, host) {\n"
" alert('alert: ' + host);\n"
" throw new Error('error: ' + url);\n"
"}";
const char kThrowingOnLoadPacScript[] =
"function FindProxyForURL(url, host) {}\n"
"alert('alert: foo');\n"
"throw new Error('error: http://foo');";
class TestNetworkDelegate : public net::NetworkDelegateImpl {
public:
enum Event {
PAC_SCRIPT_ERROR,
};
net::EventWaiter<Event>& event_waiter() { return event_waiter_; }
void OnPACScriptError(int line_number, const std::u16string& error) override;
private:
net::EventWaiter<Event> event_waiter_;
};
void TestNetworkDelegate::OnPACScriptError(int line_number,
const std::u16string& error) {
event_waiter_.NotifyEvent(PAC_SCRIPT_ERROR);
EXPECT_EQ(3, line_number);
EXPECT_TRUE(base::UTF16ToUTF8(error).find("error: http://foo") !=
std::string::npos);
}
void CheckCapturedNetLogEntries(const std::vector<net::NetLogEntry>& entries) {
ASSERT_GT(entries.size(), 2u);
size_t i = 0;
// ProxyResolutionService records its own NetLog entries, so skip forward
// until the expected event type.
while (i < entries.size() &&
entries[i].type != net::NetLogEventType::PAC_JAVASCRIPT_ALERT) {
i++;
}
ASSERT_LT(i, entries.size());
EXPECT_EQ("alert: foo", net::GetStringValueFromParams(entries[i], "message"));
ASSERT_FALSE(entries[i].params.FindKey("line_number"));
while (i < entries.size() &&
entries[i].type != net::NetLogEventType::PAC_JAVASCRIPT_ERROR) {
i++;
}
ASSERT_LT(i, entries.size());
EXPECT_THAT(net::GetStringValueFromParams(entries[i], "message"),
testing::HasSubstr("error: http://foo"));
EXPECT_EQ(3, net::GetIntegerValueFromParams(entries[i], "line_number"));
}
} // namespace
class ProxyServiceMojoTest : public testing::Test {
protected:
void SetUp() override {
mock_host_resolver_.rules()->AddRule("example.com", "1.2.3.4");
fetcher_ = new net::MockPacFileFetcher;
proxy_resolution_service_ =
CreateConfiguredProxyResolutionServiceUsingMojoFactory(
test_mojo_proxy_resolver_factory_.CreateFactoryRemote(),
std::make_unique<net::ProxyConfigServiceFixed>(
net::ProxyConfigWithAnnotation(
net::ProxyConfig::CreateFromCustomPacURL(GURL(kPacUrl)),
TRAFFIC_ANNOTATION_FOR_TESTS)),
base::WrapUnique(fetcher_),
std::make_unique<net::DoNothingDhcpPacFileFetcher>(),
&mock_host_resolver_, &net_log_, true /* pac_quick_check_enabled */,
&network_delegate_);
}
base::test::TaskEnvironment task_environment_;
TestMojoProxyResolverFactory test_mojo_proxy_resolver_factory_;
TestNetworkDelegate network_delegate_;
net::MockHostResolver mock_host_resolver_;
// Owned by |proxy_resolution_service_|.
net::MockPacFileFetcher* fetcher_;
net::RecordingTestNetLog net_log_;
std::unique_ptr<net::ConfiguredProxyResolutionService>
proxy_resolution_service_;
};
TEST_F(ProxyServiceMojoTest, Basic) {
net::ProxyInfo info;
net::TestCompletionCallback callback;
std::unique_ptr<net::ProxyResolutionRequest> request;
EXPECT_EQ(net::ERR_IO_PENDING,
proxy_resolution_service_->ResolveProxy(
GURL("http://foo"), std::string(), net::NetworkIsolationKey(),
&info, callback.callback(), &request, net::NetLogWithSource()));
// PAC file fetcher should have a fetch triggered by the first
// |ResolveProxy()| request.
EXPECT_TRUE(fetcher_->has_pending_request());
EXPECT_EQ(GURL(kPacUrl), fetcher_->pending_request_url());
fetcher_->NotifyFetchCompletion(net::OK, kSimplePacScript);
EXPECT_THAT(callback.WaitForResult(), IsOk());
EXPECT_EQ("PROXY foo:1234", info.ToPacString());
EXPECT_EQ(0u, mock_host_resolver_.num_resolve());
proxy_resolution_service_.reset();
}
TEST_F(ProxyServiceMojoTest, DnsResolution) {
net::ProxyInfo info;
net::TestCompletionCallback callback;
std::unique_ptr<net::ProxyResolutionRequest> request;
EXPECT_EQ(net::ERR_IO_PENDING,
proxy_resolution_service_->ResolveProxy(
GURL("http://foo"), std::string(), net::NetworkIsolationKey(),
&info, callback.callback(), &request, net::NetLogWithSource()));
// PAC file fetcher should have a fetch triggered by the first
// |ResolveProxy()| request.
EXPECT_TRUE(fetcher_->has_pending_request());
EXPECT_EQ(GURL(kPacUrl), fetcher_->pending_request_url());
fetcher_->NotifyFetchCompletion(net::OK, kDnsResolvePacScript);
EXPECT_THAT(callback.WaitForResult(), IsOk());
EXPECT_EQ("QUIC bar:4321", info.ToPacString());
EXPECT_EQ(1u, mock_host_resolver_.num_resolve());
proxy_resolution_service_.reset();
}
TEST_F(ProxyServiceMojoTest, Error) {
net::ProxyInfo info;
net::TestCompletionCallback callback;
net::RecordingBoundTestNetLog test_net_log;
std::unique_ptr<net::ProxyResolutionRequest> request;
EXPECT_EQ(net::ERR_IO_PENDING,
proxy_resolution_service_->ResolveProxy(
GURL("http://foo"), std::string(), net::NetworkIsolationKey(),
&info, callback.callback(), &request, test_net_log.bound()));
// PAC file fetcher should have a fetch triggered by the first
// |ResolveProxy()| request.
EXPECT_TRUE(fetcher_->has_pending_request());
EXPECT_EQ(GURL(kPacUrl), fetcher_->pending_request_url());
fetcher_->NotifyFetchCompletion(net::OK, kThrowingPacScript);
network_delegate_.event_waiter().WaitForEvent(
TestNetworkDelegate::PAC_SCRIPT_ERROR);
EXPECT_THAT(callback.WaitForResult(), IsOk());
EXPECT_EQ("DIRECT", info.ToPacString());
EXPECT_EQ(0u, mock_host_resolver_.num_resolve());
CheckCapturedNetLogEntries(test_net_log.GetEntries());
CheckCapturedNetLogEntries(net_log_.GetEntries());
}
TEST_F(ProxyServiceMojoTest, ErrorOnInitialization) {
net::ProxyInfo info;
net::TestCompletionCallback callback;
std::unique_ptr<net::ProxyResolutionRequest> request;
EXPECT_EQ(net::ERR_IO_PENDING,
proxy_resolution_service_->ResolveProxy(
GURL("http://foo"), std::string(), net::NetworkIsolationKey(),
&info, callback.callback(), &request, net::NetLogWithSource()));
// PAC file fetcher should have a fetch triggered by the first
// |ResolveProxy()| request.
EXPECT_TRUE(fetcher_->has_pending_request());
EXPECT_EQ(GURL(kPacUrl), fetcher_->pending_request_url());
fetcher_->NotifyFetchCompletion(net::OK, kThrowingOnLoadPacScript);
network_delegate_.event_waiter().WaitForEvent(
TestNetworkDelegate::PAC_SCRIPT_ERROR);
EXPECT_THAT(callback.WaitForResult(), IsOk());
EXPECT_EQ("DIRECT", info.ToPacString());
EXPECT_EQ(0u, mock_host_resolver_.num_resolve());
CheckCapturedNetLogEntries(net_log_.GetEntries());
}
} // namespace network
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