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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 "net/proxy/proxy_service_mojo.h"
#include <algorithm>
#include <string>
#include "base/callback_helpers.h"
#include "base/memory/scoped_ptr.h"
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "net/base/load_flags.h"
#include "net/base/network_delegate_impl.h"
#include "net/base/test_completion_callback.h"
#include "net/dns/mock_host_resolver.h"
#include "net/log/net_log.h"
#include "net/log/test_net_log.h"
#include "net/log/test_net_log_entry.h"
#include "net/proxy/dhcp_proxy_script_fetcher.h"
#include "net/proxy/in_process_mojo_proxy_resolver_factory.h"
#include "net/proxy/mock_proxy_script_fetcher.h"
#include "net/proxy/mojo_proxy_resolver_factory.h"
#include "net/proxy/proxy_config_service_fixed.h"
#include "net/proxy/proxy_service.h"
#include "net/test/event_waiter.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
namespace net {
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 NetworkDelegateImpl {
public:
enum Event {
PAC_SCRIPT_ERROR,
};
EventWaiter<Event>& event_waiter() { return event_waiter_; }
void OnPACScriptError(int line_number, const base::string16& error) override;
private:
EventWaiter<Event> event_waiter_;
};
void TestNetworkDelegate::OnPACScriptError(int line_number,
const base::string16& 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 TestNetLogEntry::List& entries) {
ASSERT_GT(entries.size(), 2u);
size_t i = 0;
// ProxyService records its own NetLog entries, so skip forward until the
// expected event type.
while (i < entries.size() &&
entries[i].type != NetLog::TYPE_PAC_JAVASCRIPT_ALERT) {
i++;
}
ASSERT_LT(i, entries.size());
std::string message;
ASSERT_TRUE(entries[i].GetStringValue("message", &message));
EXPECT_EQ("alert: foo", message);
ASSERT_FALSE(entries[i].params->HasKey("line_number"));
while (i < entries.size() &&
entries[i].type != NetLog::TYPE_PAC_JAVASCRIPT_ERROR) {
i++;
}
message.clear();
ASSERT_TRUE(entries[i].GetStringValue("message", &message));
EXPECT_THAT(message, testing::HasSubstr("error: http://foo"));
int line_number = 0;
ASSERT_TRUE(entries[i].GetIntegerValue("line_number", &line_number));
EXPECT_EQ(3, line_number);
}
class LoggingMockHostResolver : public MockHostResolver {
public:
int Resolve(const RequestInfo& info,
RequestPriority priority,
AddressList* addresses,
const CompletionCallback& callback,
RequestHandle* out_req,
const BoundNetLog& net_log) override {
net_log.AddEvent(NetLog::TYPE_HOST_RESOLVER_IMPL_JOB);
return MockHostResolver::Resolve(info, priority, addresses, callback,
out_req, net_log);
}
};
} // namespace
class ProxyServiceMojoTest : public testing::Test,
public MojoProxyResolverFactory {
protected:
void SetUp() override {
mock_host_resolver_.rules()->AddRule("example.com", "1.2.3.4");
fetcher_ = new MockProxyScriptFetcher;
proxy_service_ = CreateProxyServiceUsingMojoFactory(
this, make_scoped_ptr(new ProxyConfigServiceFixed(
ProxyConfig::CreateFromCustomPacURL(GURL(kPacUrl)))),
fetcher_, make_scoped_ptr(new DoNothingDhcpProxyScriptFetcher()),
&mock_host_resolver_, &net_log_, &network_delegate_);
}
scoped_ptr<base::ScopedClosureRunner> CreateResolver(
const mojo::String& pac_script,
mojo::InterfaceRequest<interfaces::ProxyResolver> req,
interfaces::ProxyResolverFactoryRequestClientPtr client) override {
InProcessMojoProxyResolverFactory::GetInstance()->CreateResolver(
pac_script, req.Pass(), client.Pass());
return make_scoped_ptr(
new base::ScopedClosureRunner(on_delete_closure_.closure()));
}
TestNetworkDelegate network_delegate_;
LoggingMockHostResolver mock_host_resolver_;
MockProxyScriptFetcher* fetcher_; // Owned by |proxy_service_|.
TestNetLog net_log_;
TestClosure on_delete_closure_;
scoped_ptr<ProxyService> proxy_service_;
};
TEST_F(ProxyServiceMojoTest, Basic) {
ProxyInfo info;
TestCompletionCallback callback;
EXPECT_EQ(ERR_IO_PENDING,
proxy_service_->ResolveProxy(GURL("http://foo"), LOAD_NORMAL, &info,
callback.callback(), nullptr, nullptr,
BoundNetLog()));
// Proxy script 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(OK, kSimplePacScript);
EXPECT_EQ(OK, callback.WaitForResult());
EXPECT_EQ("PROXY foo:1234", info.ToPacString());
EXPECT_EQ(0u, mock_host_resolver_.num_resolve());
proxy_service_.reset();
on_delete_closure_.WaitForResult();
}
TEST_F(ProxyServiceMojoTest, DnsResolution) {
ProxyInfo info;
TestCompletionCallback callback;
BoundTestNetLog bound_net_log;
EXPECT_EQ(ERR_IO_PENDING,
proxy_service_->ResolveProxy(GURL("http://foo"), LOAD_NORMAL, &info,
callback.callback(), nullptr, nullptr,
bound_net_log.bound()));
// Proxy script 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(OK, kDnsResolvePacScript);
EXPECT_EQ(OK, callback.WaitForResult());
EXPECT_EQ("QUIC bar:4321", info.ToPacString());
EXPECT_EQ(1u, mock_host_resolver_.num_resolve());
proxy_service_.reset();
on_delete_closure_.WaitForResult();
TestNetLogEntry::List entries;
bound_net_log.GetEntries(&entries);
// There should be one entry with type TYPE_HOST_RESOLVER_IMPL_JOB.
EXPECT_EQ(1, std::count_if(entries.begin(), entries.end(),
[](const TestNetLogEntry& entry) {
return entry.type ==
NetLog::TYPE_HOST_RESOLVER_IMPL_JOB;
}));
}
TEST_F(ProxyServiceMojoTest, Error) {
ProxyInfo info;
TestCompletionCallback callback;
BoundTestNetLog bound_net_log;
EXPECT_EQ(ERR_IO_PENDING,
proxy_service_->ResolveProxy(GURL("http://foo"), LOAD_NORMAL, &info,
callback.callback(), nullptr, nullptr,
bound_net_log.bound()));
// Proxy script 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(OK, kThrowingPacScript);
network_delegate_.event_waiter().WaitForEvent(
TestNetworkDelegate::PAC_SCRIPT_ERROR);
EXPECT_EQ(OK, callback.WaitForResult());
EXPECT_EQ("DIRECT", info.ToPacString());
EXPECT_EQ(0u, mock_host_resolver_.num_resolve());
TestNetLogEntry::List entries;
bound_net_log.GetEntries(&entries);
CheckCapturedNetLogEntries(entries);
entries.clear();
net_log_.GetEntries(&entries);
CheckCapturedNetLogEntries(entries);
}
TEST_F(ProxyServiceMojoTest, ErrorOnInitialization) {
ProxyInfo info;
TestCompletionCallback callback;
EXPECT_EQ(ERR_IO_PENDING,
proxy_service_->ResolveProxy(GURL("http://foo"), LOAD_NORMAL, &info,
callback.callback(), nullptr, nullptr,
BoundNetLog()));
// Proxy script 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(OK, kThrowingOnLoadPacScript);
network_delegate_.event_waiter().WaitForEvent(
TestNetworkDelegate::PAC_SCRIPT_ERROR);
EXPECT_EQ(OK, callback.WaitForResult());
EXPECT_EQ("DIRECT", info.ToPacString());
EXPECT_EQ(0u, mock_host_resolver_.num_resolve());
TestNetLogEntry::List entries;
net_log_.GetEntries(&entries);
CheckCapturedNetLogEntries(entries);
}
} // namespace net
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