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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 <queue>
#include "base/file_util.h"
#include "base/path_service.h"
#include "chrome/browser/extensions/extension_event_router_forwarder.h"
#include "chrome/browser/extensions/extension_webrequest_api.h"
#include "chrome/browser/extensions/extension_webrequest_api_constants.h"
#include "chrome/browser/net/chrome_network_delegate.h"
#include "chrome/browser/prefs/pref_member.h"
#include "chrome/common/pref_names.h"
#include "chrome/test/testing_pref_service.h"
#include "chrome/test/testing_profile.h"
#include "net/base/net_util.h"
#include "net/url_request/url_request_test_util.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace keys = extension_webrequest_api_constants;
namespace {
static void EventHandledOnIOThread(
ProfileId profile_id,
const std::string& extension_id,
const std::string& event_name,
const std::string& sub_event_name,
uint64 request_id,
ExtensionWebRequestEventRouter::EventResponse* response) {
ExtensionWebRequestEventRouter::GetInstance()->OnEventHandled(
profile_id, extension_id, event_name, sub_event_name, request_id,
response);
}
} // namespace
// A mock event router that responds to events with a pre-arranged queue of
// Tasks.
class TestEventRouter : public ExtensionEventRouterForwarder {
public:
// Adds a Task to the queue. We will fire these in order as events are
// dispatched.
void PushTask(Task* task) {
task_queue_.push(task);
}
size_t GetNumTasks() { return task_queue_.size(); }
private:
// ExtensionEventRouterForwarder:
virtual void HandleEvent(const std::string& extension_id,
const std::string& event_name,
const std::string& event_args,
ProfileId profile_id,
bool use_profile_to_restrict_events,
const GURL& event_url) {
ASSERT_FALSE(task_queue_.empty());
MessageLoop::current()->PostTask(FROM_HERE, task_queue_.front());
task_queue_.pop();
}
std::queue<Task*> task_queue_;
};
class ExtensionWebRequestTest : public testing::Test {
protected:
virtual void SetUp() {
event_router_ = new TestEventRouter();
enable_referrers_.Init(
prefs::kEnableReferrers, profile_.GetTestingPrefService(), NULL);
network_delegate_.reset(new ChromeNetworkDelegate(
event_router_.get(), profile_.GetRuntimeId(),
&enable_referrers_));
context_ = new TestURLRequestContext();
context_->set_network_delegate(network_delegate_.get());
}
MessageLoopForIO io_loop_;
TestingProfile profile_;
TestDelegate delegate_;
BooleanPrefMember enable_referrers_;
scoped_refptr<TestEventRouter> event_router_;
scoped_ptr<ChromeNetworkDelegate> network_delegate_;
scoped_refptr<TestURLRequestContext> context_;
};
// Tests that we handle disagreements among extensions about responses to
// blocking events by choosing the response from the most-recently-installed
// extension.
TEST_F(ExtensionWebRequestTest, BlockingEventPrecedence) {
std::string extension1_id("1");
std::string extension2_id("2");
ExtensionWebRequestEventRouter::RequestFilter filter;
const std::string kEventName(keys::kOnBeforeRequest);
ExtensionWebRequestEventRouter::GetInstance()->AddEventListener(
profile_.GetRuntimeId(), extension1_id, kEventName,
kEventName + "/1", filter,
ExtensionWebRequestEventRouter::ExtraInfoSpec::BLOCKING);
ExtensionWebRequestEventRouter::GetInstance()->AddEventListener(
profile_.GetRuntimeId(), extension2_id, kEventName,
kEventName + "/2", filter,
ExtensionWebRequestEventRouter::ExtraInfoSpec::BLOCKING);
net::URLRequest request(GURL("about:blank"), &delegate_);
request.set_context(context_);
{
// onBeforeRequest will be dispatched twice initially. The second response -
// the redirect - should win, since it has a later |install_time|. The
// redirect will dispatch another pair of onBeforeRequest. There, the first
// response should win (later |install_time|).
GURL redirect_url("about:redirected");
ExtensionWebRequestEventRouter::EventResponse* response = NULL;
// Extension1 response. Arrives first, but ignored due to install_time.
response = new ExtensionWebRequestEventRouter::EventResponse(
extension1_id, base::Time::FromDoubleT(1));
response->cancel = true;
event_router_->PushTask(
NewRunnableFunction(&EventHandledOnIOThread,
profile_.GetRuntimeId(), extension1_id,
kEventName, kEventName + "/1", request.identifier(), response));
// Extension2 response. Arrives second, and chosen because of install_time.
response = new ExtensionWebRequestEventRouter::EventResponse(
extension2_id, base::Time::FromDoubleT(2));
response->new_url = redirect_url;
event_router_->PushTask(
NewRunnableFunction(&EventHandledOnIOThread,
profile_.GetRuntimeId(), extension2_id,
kEventName, kEventName + "/2", request.identifier(), response));
// Extension2 response to the redirected URL. Arrives first, and chosen.
response = new ExtensionWebRequestEventRouter::EventResponse(
extension2_id, base::Time::FromDoubleT(2));
event_router_->PushTask(
NewRunnableFunction(&EventHandledOnIOThread,
profile_.GetRuntimeId(), extension2_id,
kEventName, kEventName + "/2", request.identifier(), response));
// Extension1 response to the redirected URL. Arrives second, and ignored.
response = new ExtensionWebRequestEventRouter::EventResponse(
extension1_id, base::Time::FromDoubleT(1));
response->cancel = true;
event_router_->PushTask(
NewRunnableFunction(&EventHandledOnIOThread,
profile_.GetRuntimeId(), extension1_id,
kEventName, kEventName + "/1", request.identifier(), response));
request.Start();
MessageLoop::current()->Run();
EXPECT_TRUE(!request.is_pending());
EXPECT_EQ(net::URLRequestStatus::SUCCESS, request.status().status());
EXPECT_EQ(0, request.status().os_error());
EXPECT_EQ(redirect_url, request.url());
EXPECT_EQ(2U, request.url_chain().size());
EXPECT_EQ(0U, event_router_->GetNumTasks());
}
}
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