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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 "content/browser/resolve_proxy_msg_helper.h"
#include "content/browser/browser_thread_impl.h"
#include "content/common/view_messages.h"
#include "ipc/ipc_test_sink.h"
#include "net/base/net_errors.h"
#include "net/proxy/mock_proxy_resolver.h"
#include "net/proxy/proxy_config_service.h"
#include "net/proxy/proxy_service.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
// This ProxyConfigService always returns "http://pac" as the PAC url to use.
class MockProxyConfigService : public net::ProxyConfigService {
public:
void AddObserver(Observer* observer) override {}
void RemoveObserver(Observer* observer) override {}
ConfigAvailability GetLatestProxyConfig(net::ProxyConfig* results) override {
*results = net::ProxyConfig::CreateFromCustomPacURL(GURL("http://pac"));
return CONFIG_VALID;
}
};
class TestResolveProxyMsgHelper : public ResolveProxyMsgHelper {
public:
TestResolveProxyMsgHelper(
net::ProxyService* proxy_service,
IPC::Listener* listener)
: ResolveProxyMsgHelper(proxy_service),
listener_(listener) {}
bool Send(IPC::Message* message) override {
listener_->OnMessageReceived(*message);
delete message;
return true;
}
protected:
~TestResolveProxyMsgHelper() override {}
IPC::Listener* listener_;
};
class ResolveProxyMsgHelperTest : public testing::Test, public IPC::Listener {
public:
struct PendingResult {
PendingResult(bool result,
const std::string& proxy_list)
: result(result), proxy_list(proxy_list) {
}
bool result;
std::string proxy_list;
};
ResolveProxyMsgHelperTest()
: resolver_(new net::MockAsyncProxyResolver),
service_(
new net::ProxyService(new MockProxyConfigService, resolver_, NULL)),
helper_(new TestResolveProxyMsgHelper(service_.get(), this)),
io_thread_(BrowserThread::IO, &message_loop_) {
test_sink_.AddFilter(this);
}
protected:
const PendingResult* pending_result() const { return pending_result_.get(); }
void clear_pending_result() {
pending_result_.reset();
}
IPC::Message* GenerateReply() {
bool temp_bool;
std::string temp_string;
ViewHostMsg_ResolveProxy message(GURL(), &temp_bool, &temp_string);
return IPC::SyncMessage::GenerateReply(&message);
}
net::MockAsyncProxyResolver* resolver_;
scoped_ptr<net::ProxyService> service_;
scoped_refptr<ResolveProxyMsgHelper> helper_;
scoped_ptr<PendingResult> pending_result_;
private:
bool OnMessageReceived(const IPC::Message& msg) override {
TupleTypes<ViewHostMsg_ResolveProxy::ReplyParam>::ValueTuple reply_data;
EXPECT_TRUE(ViewHostMsg_ResolveProxy::ReadReplyParam(&msg, &reply_data));
DCHECK(!pending_result_.get());
pending_result_.reset(
new PendingResult(get<0>(reply_data), get<1>(reply_data)));
test_sink_.ClearMessages();
return true;
}
base::MessageLoopForIO message_loop_;
BrowserThreadImpl io_thread_;
IPC::TestSink test_sink_;
};
// Issue three sequential requests -- each should succeed.
TEST_F(ResolveProxyMsgHelperTest, Sequential) {
GURL url1("http://www.google1.com/");
GURL url2("http://www.google2.com/");
GURL url3("http://www.google3.com/");
// Messages are deleted by the sink.
IPC::Message* msg1 = GenerateReply();
IPC::Message* msg2 = GenerateReply();
IPC::Message* msg3 = GenerateReply();
// Execute each request sequentially (so there are never 2 requests
// outstanding at the same time).
helper_->OnResolveProxy(url1, msg1);
// Finish ProxyService's initialization.
resolver_->pending_set_pac_script_request()->CompleteNow(net::OK);
ASSERT_EQ(1u, resolver_->pending_requests().size());
EXPECT_EQ(url1, resolver_->pending_requests()[0]->url());
resolver_->pending_requests()[0]->results()->UseNamedProxy("result1:80");
resolver_->pending_requests()[0]->CompleteNow(net::OK);
// Check result.
EXPECT_EQ(true, pending_result()->result);
EXPECT_EQ("PROXY result1:80", pending_result()->proxy_list);
clear_pending_result();
helper_->OnResolveProxy(url2, msg2);
ASSERT_EQ(1u, resolver_->pending_requests().size());
EXPECT_EQ(url2, resolver_->pending_requests()[0]->url());
resolver_->pending_requests()[0]->results()->UseNamedProxy("result2:80");
resolver_->pending_requests()[0]->CompleteNow(net::OK);
// Check result.
EXPECT_EQ(true, pending_result()->result);
EXPECT_EQ("PROXY result2:80", pending_result()->proxy_list);
clear_pending_result();
helper_->OnResolveProxy(url3, msg3);
ASSERT_EQ(1u, resolver_->pending_requests().size());
EXPECT_EQ(url3, resolver_->pending_requests()[0]->url());
resolver_->pending_requests()[0]->results()->UseNamedProxy("result3:80");
resolver_->pending_requests()[0]->CompleteNow(net::OK);
// Check result.
EXPECT_EQ(true, pending_result()->result);
EXPECT_EQ("PROXY result3:80", pending_result()->proxy_list);
clear_pending_result();
}
// Issue a request while one is already in progress -- should be queued.
TEST_F(ResolveProxyMsgHelperTest, QueueRequests) {
GURL url1("http://www.google1.com/");
GURL url2("http://www.google2.com/");
GURL url3("http://www.google3.com/");
IPC::Message* msg1 = GenerateReply();
IPC::Message* msg2 = GenerateReply();
IPC::Message* msg3 = GenerateReply();
// Start three requests. Since the proxy resolver is async, all the
// requests will be pending.
helper_->OnResolveProxy(url1, msg1);
// Finish ProxyService's initialization.
resolver_->pending_set_pac_script_request()->CompleteNow(net::OK);
helper_->OnResolveProxy(url2, msg2);
helper_->OnResolveProxy(url3, msg3);
// ResolveProxyHelper only keeps 1 request outstanding in ProxyService
// at a time.
ASSERT_EQ(1u, resolver_->pending_requests().size());
EXPECT_EQ(url1, resolver_->pending_requests()[0]->url());
resolver_->pending_requests()[0]->results()->UseNamedProxy("result1:80");
resolver_->pending_requests()[0]->CompleteNow(net::OK);
// Check result.
EXPECT_EQ(true, pending_result()->result);
EXPECT_EQ("PROXY result1:80", pending_result()->proxy_list);
clear_pending_result();
ASSERT_EQ(1u, resolver_->pending_requests().size());
EXPECT_EQ(url2, resolver_->pending_requests()[0]->url());
resolver_->pending_requests()[0]->results()->UseNamedProxy("result2:80");
resolver_->pending_requests()[0]->CompleteNow(net::OK);
// Check result.
EXPECT_EQ(true, pending_result()->result);
EXPECT_EQ("PROXY result2:80", pending_result()->proxy_list);
clear_pending_result();
ASSERT_EQ(1u, resolver_->pending_requests().size());
EXPECT_EQ(url3, resolver_->pending_requests()[0]->url());
resolver_->pending_requests()[0]->results()->UseNamedProxy("result3:80");
resolver_->pending_requests()[0]->CompleteNow(net::OK);
// Check result.
EXPECT_EQ(true, pending_result()->result);
EXPECT_EQ("PROXY result3:80", pending_result()->proxy_list);
clear_pending_result();
}
// Delete the helper while a request is in progress, and others are pending.
TEST_F(ResolveProxyMsgHelperTest, CancelPendingRequests) {
GURL url1("http://www.google1.com/");
GURL url2("http://www.google2.com/");
GURL url3("http://www.google3.com/");
// They will be deleted by the request's cancellation.
IPC::Message* msg1 = GenerateReply();
IPC::Message* msg2 = GenerateReply();
IPC::Message* msg3 = GenerateReply();
// Start three requests. Since the proxy resolver is async, all the
// requests will be pending.
helper_->OnResolveProxy(url1, msg1);
// Finish ProxyService's initialization.
resolver_->pending_set_pac_script_request()->CompleteNow(net::OK);
helper_->OnResolveProxy(url2, msg2);
helper_->OnResolveProxy(url3, msg3);
// ResolveProxyHelper only keeps 1 request outstanding in ProxyService
// at a time.
ASSERT_EQ(1u, resolver_->pending_requests().size());
EXPECT_EQ(url1, resolver_->pending_requests()[0]->url());
// Delete the underlying ResolveProxyMsgHelper -- this should cancel all
// the requests which are outstanding.
helper_ = NULL;
// The pending requests sent to the proxy resolver should have been cancelled.
EXPECT_EQ(0u, resolver_->pending_requests().size());
EXPECT_TRUE(pending_result() == NULL);
// It should also be the case that msg1, msg2, msg3 were deleted by the
// cancellation. (Else will show up as a leak in Valgrind).
}
} // namespace content
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