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// Copyright (c) 2011 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 "components/proxy_config/pref_proxy_config_tracker_impl.h"
#include <memory>
#include <string>
#include "base/files/file_path.h"
#include "base/message_loop/message_loop.h"
#include "base/run_loop.h"
#include "base/threading/thread_task_runner_handle.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/testing_pref_service.h"
#include "components/proxy_config/proxy_config_dictionary.h"
#include "components/proxy_config/proxy_config_pref_names.h"
#include "net/proxy/proxy_info.h"
#include "net/proxy/proxy_list.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
using testing::_;
using testing::Mock;
namespace {
const char kFixedPacUrl[] = "http://chromium.org/fixed_pac_url";
// Testing proxy config service that allows us to fire notifications at will.
class TestProxyConfigService : public net::ProxyConfigService {
public:
TestProxyConfigService(const net::ProxyConfig& config,
ConfigAvailability availability)
: config_(config),
availability_(availability) {}
void SetProxyConfig(const net::ProxyConfig config,
ConfigAvailability availability) {
config_ = config;
availability_ = availability;
for (net::ProxyConfigService::Observer& observer : observers_)
observer.OnProxyConfigChanged(config, availability);
}
private:
void AddObserver(net::ProxyConfigService::Observer* observer) override {
observers_.AddObserver(observer);
}
void RemoveObserver(net::ProxyConfigService::Observer* observer) override {
observers_.RemoveObserver(observer);
}
net::ProxyConfigService::ConfigAvailability GetLatestProxyConfig(
net::ProxyConfig* config) override {
*config = config_;
return availability_;
}
net::ProxyConfig config_;
ConfigAvailability availability_;
base::ObserverList<net::ProxyConfigService::Observer, true> observers_;
};
// A mock observer for capturing callbacks.
class MockObserver : public net::ProxyConfigService::Observer {
public:
MOCK_METHOD2(OnProxyConfigChanged,
void(const net::ProxyConfig&,
net::ProxyConfigService::ConfigAvailability));
};
class PrefProxyConfigTrackerImplTest : public testing::Test {
protected:
PrefProxyConfigTrackerImplTest() {
pref_service_.reset(new TestingPrefServiceSimple());
PrefProxyConfigTrackerImpl::RegisterPrefs(pref_service_->registry());
fixed_config_.set_pac_url(GURL(kFixedPacUrl));
delegate_service_ =
new TestProxyConfigService(fixed_config_,
net::ProxyConfigService::CONFIG_VALID);
proxy_config_tracker_.reset(new PrefProxyConfigTrackerImpl(
pref_service_.get(), base::ThreadTaskRunnerHandle::Get()));
proxy_config_service_ =
proxy_config_tracker_->CreateTrackingProxyConfigService(
std::unique_ptr<net::ProxyConfigService>(delegate_service_));
// SetProxyConfigServiceImpl triggers update of initial prefs proxy
// config by tracker to chrome proxy config service, so flush all pending
// tasks so that tests start fresh.
base::RunLoop().RunUntilIdle();
}
~PrefProxyConfigTrackerImplTest() override {
proxy_config_tracker_->DetachFromPrefService();
base::RunLoop().RunUntilIdle();
proxy_config_tracker_.reset();
proxy_config_service_.reset();
}
base::MessageLoop loop_;
std::unique_ptr<TestingPrefServiceSimple> pref_service_;
TestProxyConfigService* delegate_service_; // weak
std::unique_ptr<net::ProxyConfigService> proxy_config_service_;
net::ProxyConfig fixed_config_;
private:
std::unique_ptr<PrefProxyConfigTrackerImpl> proxy_config_tracker_;
};
TEST_F(PrefProxyConfigTrackerImplTest, BaseConfiguration) {
net::ProxyConfig actual_config;
EXPECT_EQ(net::ProxyConfigService::CONFIG_VALID,
proxy_config_service_->GetLatestProxyConfig(&actual_config));
EXPECT_EQ(GURL(kFixedPacUrl), actual_config.pac_url());
}
TEST_F(PrefProxyConfigTrackerImplTest, DynamicPrefOverrides) {
pref_service_->SetManagedPref(proxy_config::prefs::kProxy,
ProxyConfigDictionary::CreateFixedServers(
"http://example.com:3128", std::string()));
base::RunLoop().RunUntilIdle();
net::ProxyConfig actual_config;
EXPECT_EQ(net::ProxyConfigService::CONFIG_VALID,
proxy_config_service_->GetLatestProxyConfig(&actual_config));
EXPECT_FALSE(actual_config.auto_detect());
EXPECT_EQ(net::ProxyConfig::ProxyRules::TYPE_SINGLE_PROXY,
actual_config.proxy_rules().type);
EXPECT_EQ(actual_config.proxy_rules().single_proxies.Get(),
net::ProxyServer::FromURI("http://example.com:3128",
net::ProxyServer::SCHEME_HTTP));
pref_service_->SetManagedPref(proxy_config::prefs::kProxy,
ProxyConfigDictionary::CreateAutoDetect());
base::RunLoop().RunUntilIdle();
EXPECT_EQ(net::ProxyConfigService::CONFIG_VALID,
proxy_config_service_->GetLatestProxyConfig(&actual_config));
EXPECT_TRUE(actual_config.auto_detect());
}
// Compares proxy configurations, but allows different identifiers.
MATCHER_P(ProxyConfigMatches, config, "") {
net::ProxyConfig reference(config);
reference.set_id(arg.id());
return reference.Equals(arg);
}
TEST_F(PrefProxyConfigTrackerImplTest, Observers) {
const net::ProxyConfigService::ConfigAvailability CONFIG_VALID =
net::ProxyConfigService::CONFIG_VALID;
MockObserver observer;
proxy_config_service_->AddObserver(&observer);
// Firing the observers in the delegate should trigger a notification.
net::ProxyConfig config2;
config2.set_auto_detect(true);
EXPECT_CALL(observer, OnProxyConfigChanged(ProxyConfigMatches(config2),
CONFIG_VALID)).Times(1);
delegate_service_->SetProxyConfig(config2, CONFIG_VALID);
base::RunLoop().RunUntilIdle();
Mock::VerifyAndClearExpectations(&observer);
// Override configuration, this should trigger a notification.
net::ProxyConfig pref_config;
pref_config.set_pac_url(GURL(kFixedPacUrl));
EXPECT_CALL(observer, OnProxyConfigChanged(ProxyConfigMatches(pref_config),
CONFIG_VALID)).Times(1);
pref_service_->SetManagedPref(
proxy_config::prefs::kProxy,
ProxyConfigDictionary::CreatePacScript(kFixedPacUrl, false));
base::RunLoop().RunUntilIdle();
Mock::VerifyAndClearExpectations(&observer);
// Since there are pref overrides, delegate changes should be ignored.
net::ProxyConfig config3;
config3.proxy_rules().ParseFromString("http=config3:80");
EXPECT_CALL(observer, OnProxyConfigChanged(_, _)).Times(0);
fixed_config_.set_auto_detect(true);
delegate_service_->SetProxyConfig(config3, CONFIG_VALID);
base::RunLoop().RunUntilIdle();
Mock::VerifyAndClearExpectations(&observer);
// Clear the override should switch back to the fixed configuration.
EXPECT_CALL(observer, OnProxyConfigChanged(ProxyConfigMatches(config3),
CONFIG_VALID)).Times(1);
pref_service_->RemoveManagedPref(proxy_config::prefs::kProxy);
base::RunLoop().RunUntilIdle();
Mock::VerifyAndClearExpectations(&observer);
// Delegate service notifications should show up again.
net::ProxyConfig config4;
config4.proxy_rules().ParseFromString("socks:config4");
EXPECT_CALL(observer, OnProxyConfigChanged(ProxyConfigMatches(config4),
CONFIG_VALID)).Times(1);
delegate_service_->SetProxyConfig(config4, CONFIG_VALID);
base::RunLoop().RunUntilIdle();
Mock::VerifyAndClearExpectations(&observer);
proxy_config_service_->RemoveObserver(&observer);
}
TEST_F(PrefProxyConfigTrackerImplTest, Fallback) {
const net::ProxyConfigService::ConfigAvailability CONFIG_VALID =
net::ProxyConfigService::CONFIG_VALID;
MockObserver observer;
net::ProxyConfig actual_config;
delegate_service_->SetProxyConfig(net::ProxyConfig::CreateDirect(),
net::ProxyConfigService::CONFIG_UNSET);
proxy_config_service_->AddObserver(&observer);
// Prepare test data.
net::ProxyConfig recommended_config = net::ProxyConfig::CreateAutoDetect();
net::ProxyConfig user_config =
net::ProxyConfig::CreateFromCustomPacURL(GURL(kFixedPacUrl));
// Set a recommended pref.
EXPECT_CALL(observer,
OnProxyConfigChanged(ProxyConfigMatches(recommended_config),
CONFIG_VALID)).Times(1);
pref_service_->SetRecommendedPref(proxy_config::prefs::kProxy,
ProxyConfigDictionary::CreateAutoDetect());
base::RunLoop().RunUntilIdle();
Mock::VerifyAndClearExpectations(&observer);
EXPECT_EQ(CONFIG_VALID,
proxy_config_service_->GetLatestProxyConfig(&actual_config));
EXPECT_TRUE(actual_config.Equals(recommended_config));
// Override in user prefs.
EXPECT_CALL(observer,
OnProxyConfigChanged(ProxyConfigMatches(user_config),
CONFIG_VALID)).Times(1);
pref_service_->SetManagedPref(
proxy_config::prefs::kProxy,
ProxyConfigDictionary::CreatePacScript(kFixedPacUrl, false));
base::RunLoop().RunUntilIdle();
Mock::VerifyAndClearExpectations(&observer);
EXPECT_EQ(CONFIG_VALID,
proxy_config_service_->GetLatestProxyConfig(&actual_config));
EXPECT_TRUE(actual_config.Equals(user_config));
// Go back to recommended pref.
EXPECT_CALL(observer,
OnProxyConfigChanged(ProxyConfigMatches(recommended_config),
CONFIG_VALID)).Times(1);
pref_service_->RemoveManagedPref(proxy_config::prefs::kProxy);
base::RunLoop().RunUntilIdle();
Mock::VerifyAndClearExpectations(&observer);
EXPECT_EQ(CONFIG_VALID,
proxy_config_service_->GetLatestProxyConfig(&actual_config));
EXPECT_TRUE(actual_config.Equals(recommended_config));
proxy_config_service_->RemoveObserver(&observer);
}
TEST_F(PrefProxyConfigTrackerImplTest, ExplicitSystemSettings) {
pref_service_->SetRecommendedPref(proxy_config::prefs::kProxy,
ProxyConfigDictionary::CreateAutoDetect());
pref_service_->SetUserPref(proxy_config::prefs::kProxy,
ProxyConfigDictionary::CreateSystem());
base::RunLoop().RunUntilIdle();
// Test if we actually use the system setting, which is |kFixedPacUrl|.
net::ProxyConfig actual_config;
EXPECT_EQ(net::ProxyConfigService::CONFIG_VALID,
proxy_config_service_->GetLatestProxyConfig(&actual_config));
EXPECT_EQ(GURL(kFixedPacUrl), actual_config.pac_url());
}
} // namespace
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