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content / browser / loader / file_url_loader_factory_unittest.cc [blame]
// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/loader/file_url_loader_factory.h"
#include <memory>
#include <string>
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/path_service.h"
#include "base/test/bind.h"
#include "base/test/gmock_callback_support.h"
#include "base/test/mock_callback.h"
#include "base/test/task_environment.h"
#include "base/test/test_future.h"
#include "base/threading/thread_restrictions.h"
#include "base/time/time.h"
#include "components/file_access/scoped_file_access.h"
#include "components/file_access/scoped_file_access_delegate.h"
#include "components/file_access/test/mock_scoped_file_access_delegate.h"
#include "content/public/browser/file_url_loader.h"
#include "content/public/browser/shared_cors_origin_access_list.h"
#include "content/public/common/content_paths.h"
#include "content/public/test/simple_url_loader_test_helper.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "net/base/filename_util.h"
#include "net/base/net_errors.h"
#include "net/traffic_annotation/network_traffic_annotation_test_helper.h"
#include "services/network/public/cpp/cors/origin_access_list.h"
#include "services/network/public/cpp/resource_request.h"
#include "services/network/public/cpp/simple_url_loader.h"
#include "services/network/public/cpp/url_loader_completion_status.h"
#include "services/network/public/mojom/url_loader.mojom.h"
#include "services/network/test/mock_url_loader_client.h"
#include "services/network/test/test_url_loader_client.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
#include "url/origin.h"
namespace content {
using testing::_;
namespace {
// Implementation of SharedCorsOriginAccessList that is used by some of the unit
// tests below for verifying that FileURLLoaderFactory correctly grants or
// denies CORS exemptions to specific initiator origins.
//
// The implementation below gives https://www.google.com origin access to all
// file:// URLs.
class SharedCorsOriginAccessListForTesting : public SharedCorsOriginAccessList {
public:
SharedCorsOriginAccessListForTesting()
: permitted_source_origin_(
url::Origin::Create(GURL("https://www.google.com"))) {
const std::string kFileProtocol("file");
const std::string kAnyDomain;
constexpr uint16_t kAnyPort = 0;
list_.AddAllowListEntryForOrigin(
permitted_source_origin_, kFileProtocol, kAnyDomain, kAnyPort,
network::mojom::CorsDomainMatchMode::kDisallowSubdomains,
network::mojom::CorsPortMatchMode::kAllowAnyPort,
network::mojom::CorsOriginAccessMatchPriority::kDefaultPriority);
}
SharedCorsOriginAccessListForTesting(
const SharedCorsOriginAccessListForTesting&) = delete;
SharedCorsOriginAccessListForTesting& operator=(
const SharedCorsOriginAccessListForTesting&) = delete;
void SetForOrigin(
const url::Origin& source_origin,
std::vector<network::mojom::CorsOriginPatternPtr> allow_patterns,
std::vector<network::mojom::CorsOriginPatternPtr> block_patterns,
base::OnceClosure closure) override {}
const network::cors::OriginAccessList& GetOriginAccessList() override {
return list_;
}
url::Origin GetPermittedSourceOrigin() { return permitted_source_origin_; }
private:
~SharedCorsOriginAccessListForTesting() override = default;
network::cors::OriginAccessList list_;
const url::Origin permitted_source_origin_;
};
GURL GetTestURL(const std::string& filename) {
base::ScopedAllowBlockingForTesting allow_blocking;
base::FilePath path;
base::PathService::Get(DIR_TEST_DATA, &path);
path = path.AppendASCII("loader");
return net::FilePathToFileURL(path.AppendASCII(filename));
}
class FileURLLoaderFactoryTest : public testing::Test {
public:
FileURLLoaderFactoryTest()
: access_list_(
base::MakeRefCounted<SharedCorsOriginAccessListForTesting>()) {
factory_.Bind(FileURLLoaderFactory::Create(
profile_dummy_path_, access_list_, base::TaskPriority::BEST_EFFORT));
}
FileURLLoaderFactoryTest(const FileURLLoaderFactoryTest&) = delete;
FileURLLoaderFactoryTest& operator=(const FileURLLoaderFactoryTest&) = delete;
~FileURLLoaderFactoryTest() override = default;
protected:
int CreateLoaderAndRun(std::unique_ptr<network::ResourceRequest> request) {
auto loader = network::SimpleURLLoader::Create(
std::move(request), TRAFFIC_ANNOTATION_FOR_TESTS);
SimpleURLLoaderTestHelper helper;
loader->DownloadToString(
factory_.get(), helper.GetCallbackDeprecated(),
network::SimpleURLLoader::kMaxBoundedStringDownloadSize);
helper.WaitForCallback();
if (loader->ResponseInfo()) {
response_info_ = loader->ResponseInfo()->Clone();
}
return loader->NetError();
}
::network::URLLoaderCompletionStatus CreateLoaderBypassingSecurityAndRun(
std::unique_ptr<network::ResourceRequest> request) {
mojo::Receiver<network::mojom::URLLoaderClient> client_receiver{&client_};
base::test::TestFuture<::network::URLLoaderCompletionStatus> future;
content::CreateFileURLLoaderBypassingSecurityChecks(
*request, loader_.BindNewPipeAndPassReceiver(),
client_receiver.BindNewPipeAndPassRemote(),
/*observer*/ nullptr,
/*allow_directory_listing*/ true);
EXPECT_CALL(client_, OnComplete)
.WillOnce([&future](::network::URLLoaderCompletionStatus st) {
future.SetValue(st);
});
return future.Get();
}
std::unique_ptr<network::ResourceRequest> CreateRequestWithMode(
network::mojom::RequestMode request_mode) {
auto request = std::make_unique<network::ResourceRequest>();
request->url = GetTestURL("get.txt");
request->mode = request_mode;
return request;
}
std::unique_ptr<network::ResourceRequest> CreateCorsRequestWithInitiator(
const url::Origin initiator_origin) {
auto request = std::make_unique<network::ResourceRequest>();
request->url = GetTestURL("get.txt");
request->mode = network::mojom::RequestMode::kCors;
request->request_initiator = initiator_origin;
return request;
}
url::Origin GetPermittedSourceOrigin() {
return access_list_->GetPermittedSourceOrigin();
}
network::mojom::URLResponseHead* ResponseInfo() {
return response_info_.get();
}
private:
base::test::TaskEnvironment task_environment_;
base::FilePath profile_dummy_path_;
scoped_refptr<SharedCorsOriginAccessListForTesting> access_list_;
mojo::Remote<network::mojom::URLLoaderFactory> factory_;
network::mojom::URLResponseHeadPtr response_info_;
testing::NiceMock<network::MockURLLoaderClient> client_;
mojo::Remote<network::mojom::URLLoader> loader_;
};
TEST_F(FileURLLoaderFactoryTest, LastModified) {
// The Last-Modified response header should be populated with the file
// modification time.
const char kTimeString[] = "Tue, 15 Nov 1994 12:45:26 GMT";
// Create a temporary file with an arbitrary last-modified timestamp.
base::FilePath file;
ASSERT_TRUE(base::CreateTemporaryFile(&file));
base::Time time;
ASSERT_TRUE(base::Time::FromString(kTimeString, &time));
ASSERT_TRUE(base::TouchFile(file, /*last_accessed=*/base::Time::Now(),
/*last_modified=*/time));
// Request the file and extract the Last-Modified header.
auto request = std::make_unique<network::ResourceRequest>();
request->url = net::FilePathToFileURL(file);
std::string last_modified;
ASSERT_EQ(net::OK, CreateLoaderAndRun(std::move(request)));
ASSERT_NE(ResponseInfo(), nullptr);
ASSERT_TRUE(ResponseInfo()->headers->EnumerateHeader(
/*iter*/ nullptr, net::HttpResponseHeaders::kLastModified,
&last_modified));
// The header matches the file modification time.
ASSERT_EQ(kTimeString, last_modified);
}
TEST_F(FileURLLoaderFactoryTest, Status) {
base::FilePath file;
ASSERT_TRUE(base::CreateTemporaryFile(&file));
auto request = std::make_unique<network::ResourceRequest>();
request->url = net::FilePathToFileURL(file);
ASSERT_EQ(net::OK, CreateLoaderAndRun(std::move(request)));
ASSERT_NE(ResponseInfo(), nullptr);
ASSERT_NE(ResponseInfo()->headers, nullptr);
ASSERT_EQ(200, ResponseInfo()->headers->response_code());
ASSERT_EQ("OK", ResponseInfo()->headers->GetStatusText());
}
#if BUILDFLAG(IS_WIN)
TEST_F(FileURLLoaderFactoryTest, LoadingFileLargerThan4GB) {
// Prepare big file (ie bigger than 4GB).
base::File file;
base::FilePath file_path;
const int64_t kSize = 5'000'000'000;
{
const base::ScopedAllowBlockingForTesting allow_io;
ASSERT_TRUE(base::CreateTemporaryFile(&file_path));
file.Initialize(file_path, (base::File::Flags::FLAG_CREATE_ALWAYS |
base::File::Flags::FLAG_WRITE |
base::File::Flags::FLAG_READ));
ASSERT_TRUE(file.IsValid());
ASSERT_TRUE(file.SetLength(kSize));
}
auto request = std::make_unique<network::ResourceRequest>();
request->url = net::FilePathToFileURL(file_path);
// Any result is OK, as long as it doesn't crash.
CreateLoaderAndRun(std::move(request));
}
#endif // BUILDFLAG(IS_WIN)
TEST_F(FileURLLoaderFactoryTest, MissedRequestInitiator) {
// CORS-disabled requests can omit |request.request_initiator| though it is
// discouraged not to set |request.request_initiator|.
EXPECT_EQ(net::OK, CreateLoaderAndRun(CreateRequestWithMode(
network::mojom::RequestMode::kSameOrigin)));
EXPECT_EQ(net::OK, CreateLoaderAndRun(CreateRequestWithMode(
network::mojom::RequestMode::kNoCors)));
EXPECT_EQ(net::OK, CreateLoaderAndRun(CreateRequestWithMode(
network::mojom::RequestMode::kNavigate)));
// CORS-enabled requests need |request.request_initiator| set.
EXPECT_EQ(net::ERR_INVALID_ARGUMENT,
CreateLoaderAndRun(
CreateRequestWithMode(network::mojom::RequestMode::kCors)));
EXPECT_EQ(net::ERR_INVALID_ARGUMENT,
CreateLoaderAndRun(CreateRequestWithMode(
network::mojom::RequestMode::kCorsWithForcedPreflight)));
}
// Verify that FileURLLoaderFactory takes OriginAccessList into account when
// deciding whether to exempt a request from CORS. See also
// https://crbug.com/1049604.
TEST_F(FileURLLoaderFactoryTest, Allowlist) {
const url::Origin not_permitted_origin =
url::Origin::Create(GURL("https://www.example.com"));
// Request should fail unless the origin pair is not registered in the
// allowlist.
EXPECT_EQ(
net::ERR_FAILED,
CreateLoaderAndRun(CreateCorsRequestWithInitiator(not_permitted_origin)));
// Registered access should pass.
EXPECT_EQ(net::OK, CreateLoaderAndRun(CreateCorsRequestWithInitiator(
GetPermittedSourceOrigin())));
// Isolated world origin should *not* be used to check the permission.
auto request = CreateCorsRequestWithInitiator(not_permitted_origin);
request->isolated_world_origin = GetPermittedSourceOrigin();
EXPECT_EQ(net::ERR_FAILED, CreateLoaderAndRun(std::move(request)));
}
// Test that response type is set correctly for directory listings. Regression
// test for https://crbug.com/41492103.
TEST_F(FileURLLoaderFactoryTest, ResponseTypeForDirectoryListings) {
base::ScopedTempDir dir;
ASSERT_TRUE(dir.CreateUniqueTempDir());
auto request = std::make_unique<network::ResourceRequest>();
request->url =
net::FilePathToFileURL(dir.GetPath().StripTrailingSeparators());
request->mode = network::mojom::RequestMode::kNoCors;
ASSERT_EQ(net::OK, CreateLoaderAndRun(std::move(request)));
ASSERT_NE(ResponseInfo(), nullptr);
EXPECT_EQ(network::mojom::FetchResponseType::kOpaque,
ResponseInfo()->response_type);
}
} // namespace
TEST_F(FileURLLoaderFactoryTest, DlpInitiatorAllow) {
file_access::MockScopedFileAccessDelegate file_access_delegate;
auto origin = url::Origin::Create(GURL("https://example.com"));
EXPECT_CALL(file_access_delegate, RequestFilesAccess)
.WillOnce(base::test::RunOnceCallback<2>(
file_access::ScopedFileAccess::Allowed()));
base::FilePath file;
ASSERT_TRUE(base::CreateTemporaryFile(&file));
auto request = std::make_unique<network::ResourceRequest>();
request->url = net::FilePathToFileURL(file);
request->request_initiator = origin;
ASSERT_EQ(net::OK, CreateLoaderAndRun(std::move(request)));
ASSERT_NE(ResponseInfo(), nullptr);
ASSERT_NE(ResponseInfo()->headers, nullptr);
ASSERT_EQ(200, ResponseInfo()->headers->response_code());
ASSERT_EQ("OK", ResponseInfo()->headers->GetStatusText());
}
TEST_F(FileURLLoaderFactoryTest, DlpNoInitiatorAllow) {
file_access::MockScopedFileAccessDelegate file_access_delegate;
EXPECT_CALL(file_access_delegate, RequestFilesAccessForSystem)
.WillOnce(base::test::RunOnceCallback<1>(
file_access::ScopedFileAccess::Allowed()));
base::FilePath file;
ASSERT_TRUE(base::CreateTemporaryFile(&file));
auto request = std::make_unique<network::ResourceRequest>();
request->url = net::FilePathToFileURL(file);
ASSERT_EQ(net::OK, CreateLoaderAndRun(std::move(request)));
ASSERT_NE(ResponseInfo(), nullptr);
ASSERT_NE(ResponseInfo()->headers, nullptr);
ASSERT_EQ(200, ResponseInfo()->headers->response_code());
ASSERT_EQ("OK", ResponseInfo()->headers->GetStatusText());
}
TEST_F(FileURLLoaderFactoryTest, DlpInitiatorDeny) {
file_access::MockScopedFileAccessDelegate file_access_delegate;
auto origin = url::Origin::Create(GURL("https://example.com"));
EXPECT_CALL(file_access_delegate, RequestFilesAccess)
.WillOnce(base::test::RunOnceCallback<2>(
file_access::ScopedFileAccess::Denied()));
base::FilePath file;
ASSERT_TRUE(base::CreateTemporaryFile(&file));
auto request = std::make_unique<network::ResourceRequest>();
request->url = net::FilePathToFileURL(file);
request->request_initiator = origin;
ASSERT_EQ(net::ERR_FAILED, CreateLoaderAndRun(std::move(request)));
}
TEST_F(FileURLLoaderFactoryTest, DlpNoInitiatorDeny) {
file_access::MockScopedFileAccessDelegate file_access_delegate;
EXPECT_CALL(file_access_delegate, RequestFilesAccessForSystem)
.WillOnce(base::test::RunOnceCallback<1>(
file_access::ScopedFileAccess::Denied()));
base::FilePath file;
ASSERT_TRUE(base::CreateTemporaryFile(&file));
auto request = std::make_unique<network::ResourceRequest>();
request->url = net::FilePathToFileURL(file);
ASSERT_EQ(net::ERR_FAILED, CreateLoaderAndRun(std::move(request)));
}
TEST_F(FileURLLoaderFactoryTest, DlpRemoteValidFileUrl) {
file_access::MockScopedFileAccessDelegate file_access_delegate;
base::MockCallback<base::RepeatingCallback<void(
const std::vector<base::FilePath>&,
base::OnceCallback<void(file_access::ScopedFileAccess)>)>>
cb;
EXPECT_CALL(cb, Run).WillOnce(
base::test::RunOnceCallback<1>(file_access::ScopedFileAccess::Denied()));
file_access::ScopedFileAccessDelegate::
ScopedRequestFilesAccessCallbackForTesting scoped_callback(cb.Get());
auto request = std::make_unique<network::ResourceRequest>();
request->url = GURL("file:///test");
EXPECT_EQ(net::ERR_FAILED,
CreateLoaderBypassingSecurityAndRun(std::move(request)).error_code);
}
TEST_F(FileURLLoaderFactoryTest, DlpRemoteInvalidFileUrl) {
file_access::MockScopedFileAccessDelegate file_access_delegate;
base::MockCallback<base::RepeatingCallback<void(
const std::vector<base::FilePath>&,
base::OnceCallback<void(file_access::ScopedFileAccess)>)>>
cb;
EXPECT_CALL(cb, Run).Times(0);
file_access::ScopedFileAccessDelegate::
ScopedRequestFilesAccessCallbackForTesting scoped_callback(cb.Get());
auto request = std::make_unique<network::ResourceRequest>();
request->url = GURL("file:///%00");
EXPECT_EQ(net::ERR_INVALID_URL,
CreateLoaderBypassingSecurityAndRun(std::move(request)).error_code);
}
} // namespace content