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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/browser/api/web_request/web_request_permissions.h"
#include <stddef.h>
#include <memory>
#include "base/memory/raw_ptr.h"
#include "build/chromeos_buildflags.h"
#include "chrome/browser/extensions/extension_service_test_base.h"
#include "chrome/common/extensions/extension_test_util.h"
#include "chrome/common/url_constants.h"
#include "content/public/test/browser_task_environment.h"
#include "extensions/browser/api/web_request/permission_helper.h"
#include "extensions/browser/api/web_request/web_request_info.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/buildflags/buildflags.h"
#include "extensions/common/constants.h"
#include "extensions/common/permissions/permissions_data.h"
#include "ipc/ipc_message.h"
#include "services/network/public/mojom/fetch_api.mojom-shared.h"
#include "testing/gtest/include/gtest/gtest.h"
static_assert(BUILDFLAG(ENABLE_EXTENSIONS_CORE));
using extension_test_util::LoadManifestUnchecked;
using extensions::Extension;
using extensions::ExtensionRegistry;
using extensions::Manifest;
using extensions::PermissionsData;
using extensions::WebRequestInfo;
using extensions::WebRequestInfoInitParams;
using extensions::mojom::ManifestLocation;
class ExtensionWebRequestHelpersTestWithThreadsTest
: public extensions::ExtensionServiceTestBase {
protected:
void SetUp() override;
raw_ptr<extensions::PermissionHelper> permission_helper_ = nullptr;
// This extension has Web Request permissions, but no host permission.
scoped_refptr<Extension> permissionless_extension_;
// This extension has Web Request permissions, and *.com a host permission.
scoped_refptr<Extension> com_extension_;
// This extension is the same as com_extension, except it's installed from
// ManifestLocation::kExternalPolicyDownload.
scoped_refptr<Extension> com_policy_extension_;
};
void ExtensionWebRequestHelpersTestWithThreadsTest::SetUp() {
ExtensionServiceTestBase::SetUp();
InitializeEmptyExtensionService();
permission_helper_ = extensions::PermissionHelper::Get(browser_context());
std::string error;
permissionless_extension_ =
LoadManifestUnchecked("permissions", "web_request_no_host.json",
ManifestLocation::kInvalidLocation,
Extension::NO_FLAGS, "ext_id_1", &error);
ASSERT_TRUE(permissionless_extension_.get()) << error;
com_extension_ = LoadManifestUnchecked(
"permissions", "web_request_com_host_permissions.json",
ManifestLocation::kInvalidLocation, Extension::NO_FLAGS, "ext_id_2",
&error);
ASSERT_TRUE(com_extension_.get()) << error;
com_policy_extension_ = LoadManifestUnchecked(
"permissions", "web_request_com_host_permissions.json",
ManifestLocation::kExternalPolicyDownload, Extension::NO_FLAGS,
"ext_id_3", &error);
ASSERT_TRUE(com_policy_extension_.get()) << error;
ExtensionRegistry::Get(browser_context())
->AddEnabled(permissionless_extension_);
ExtensionRegistry::Get(browser_context())->AddEnabled(com_extension_);
ExtensionRegistry::Get(browser_context())->AddEnabled(com_policy_extension_);
}
// Ensures that requests to extension blocklist urls can't be intercepted by
// extensions.
TEST_F(ExtensionWebRequestHelpersTestWithThreadsTest,
BlocklistUpdateUrlsHidden) {
auto create_request_params = [](const std::string& url) {
const int kRendererProcessId = 2;
WebRequestInfoInitParams request;
request.url = GURL(url);
request.render_process_id = kRendererProcessId;
return request;
};
WebRequestInfo request_1(create_request_params(
"http://www.gstatic.com/chrome/extensions/blocklist"));
EXPECT_TRUE(
WebRequestPermissions::HideRequest(permission_helper_, request_1));
WebRequestInfo request_2(create_request_params(
"https://www.gstatic.com/chrome/extensions/blocklist"));
EXPECT_TRUE(
WebRequestPermissions::HideRequest(permission_helper_, request_2));
}
// Ensure requests made by the local WebUINTP are hidden from extensions.
// Regression test for crbug.com/931013.
TEST_F(ExtensionWebRequestHelpersTestWithThreadsTest, LocalWebUINTPRequests) {
const GURL example_com("http://example.com");
auto create_request_params =
[&example_com](const url::Origin& initiator,
extensions::WebRequestResourceType web_request_type,
bool is_navigation_request) {
WebRequestInfoInitParams info_params;
info_params.url = example_com;
info_params.initiator = initiator;
info_params.render_process_id = -1;
info_params.web_request_type = web_request_type;
info_params.is_navigation_request = is_navigation_request;
return info_params;
};
url::Origin ntp_origin =
url::Origin::Create(GURL(chrome::kChromeUINewTabPageURL));
// Sub-resource browser initiated requests are hidden from extensions.
WebRequestInfoInitParams info_params_1 = create_request_params(
ntp_origin, extensions::WebRequestResourceType::OTHER, false);
EXPECT_TRUE(WebRequestPermissions::HideRequest(
permission_helper_, WebRequestInfo(std::move(info_params_1))));
// Sub-frame navigations initiated from the local ntp should be hidden.
WebRequestInfoInitParams info_params_2 = create_request_params(
ntp_origin, extensions::WebRequestResourceType::SUB_FRAME, true);
EXPECT_TRUE(WebRequestPermissions::HideRequest(
permission_helper_, WebRequestInfo(std::move(info_params_2))));
// Sub-frame navigations initiated from a non-sensitive domain should not be
// hidden.
WebRequestInfoInitParams info_params_3 = create_request_params(
url::Origin::Create(example_com),
extensions::WebRequestResourceType::SUB_FRAME, true);
EXPECT_FALSE(WebRequestPermissions::HideRequest(
permission_helper_, WebRequestInfo(std::move(info_params_3))));
}
TEST_F(ExtensionWebRequestHelpersTestWithThreadsTest,
TestCanExtensionAccessURL_HostPermissions) {
const GURL url("http://example.com");
const extensions::WebRequestResourceType kWebRequestType =
extensions::WebRequestResourceType::OTHER;
EXPECT_EQ(PermissionsData::PageAccess::kAllowed,
WebRequestPermissions::CanExtensionAccessURL(
permission_helper_, permissionless_extension_->id(), url,
-1, // No tab id.
false, // crosses_incognito
WebRequestPermissions::DO_NOT_CHECK_HOST, std::nullopt,
kWebRequestType));
EXPECT_EQ(PermissionsData::PageAccess::kDenied,
WebRequestPermissions::CanExtensionAccessURL(
permission_helper_, permissionless_extension_->id(), url,
-1, // No tab id.
false, // crosses_incognito
WebRequestPermissions::REQUIRE_HOST_PERMISSION_FOR_URL,
std::nullopt, kWebRequestType));
EXPECT_EQ(PermissionsData::PageAccess::kAllowed,
WebRequestPermissions::CanExtensionAccessURL(
permission_helper_, com_extension_->id(), url,
-1, // No tab id.
false, // crosses_incognito
WebRequestPermissions::REQUIRE_HOST_PERMISSION_FOR_URL,
std::nullopt, kWebRequestType));
EXPECT_EQ(
PermissionsData::PageAccess::kAllowed,
WebRequestPermissions::CanExtensionAccessURL(
permission_helper_, com_extension_->id(), url,
-1, // No tab id.
false, // crosses_incognito
WebRequestPermissions::REQUIRE_HOST_PERMISSION_FOR_URL_AND_INITIATOR,
std::nullopt, kWebRequestType));
EXPECT_EQ(PermissionsData::PageAccess::kDenied,
WebRequestPermissions::CanExtensionAccessURL(
permission_helper_, com_extension_->id(), url,
-1, // No tab id.
false, // crosses_incognito
WebRequestPermissions::REQUIRE_ALL_URLS, std::nullopt,
kWebRequestType));
std::optional<url::Origin> initiator(
url::Origin::Create(GURL("http://www.example.org")));
EXPECT_EQ(PermissionsData::PageAccess::kAllowed,
WebRequestPermissions::CanExtensionAccessURL(
permission_helper_, permissionless_extension_->id(), url,
-1, // No tab id.
false, // crosses_incognito
WebRequestPermissions::DO_NOT_CHECK_HOST, initiator,
kWebRequestType));
EXPECT_EQ(PermissionsData::PageAccess::kDenied,
WebRequestPermissions::CanExtensionAccessURL(
permission_helper_, permissionless_extension_->id(), url,
-1, // No tab id.
false, // crosses_incognito
WebRequestPermissions::REQUIRE_HOST_PERMISSION_FOR_URL,
initiator, kWebRequestType));
EXPECT_EQ(PermissionsData::PageAccess::kAllowed,
WebRequestPermissions::CanExtensionAccessURL(
permission_helper_, com_extension_->id(), url,
-1, // No tab id.
false, // crosses_incognito
WebRequestPermissions::REQUIRE_HOST_PERMISSION_FOR_URL,
initiator, kWebRequestType));
// Doesn't have access to the initiator.
EXPECT_EQ(
PermissionsData::PageAccess::kDenied,
WebRequestPermissions::CanExtensionAccessURL(
permission_helper_, com_extension_->id(), url,
-1, // No tab id.
false, // crosses_incognito
WebRequestPermissions::REQUIRE_HOST_PERMISSION_FOR_URL_AND_INITIATOR,
initiator, kWebRequestType));
// Navigation requests don't need access to the initiator.
EXPECT_EQ(
PermissionsData::PageAccess::kAllowed,
WebRequestPermissions::CanExtensionAccessURL(
permission_helper_, com_extension_->id(), url,
-1, // No tab id.
false, // crosses_incognito
WebRequestPermissions::REQUIRE_HOST_PERMISSION_FOR_URL_AND_INITIATOR,
initiator, extensions::WebRequestResourceType::SUB_FRAME));
EXPECT_EQ(
PermissionsData::PageAccess::kDenied,
WebRequestPermissions::CanExtensionAccessURL(
permission_helper_, com_extension_->id(), url,
-1, // No tab id.
false, // crosses_incognito
WebRequestPermissions::REQUIRE_ALL_URLS, initiator, kWebRequestType));
// com_extension_ doesn't have host permission for .org URLs.
const GURL org_url("http://example.org");
EXPECT_EQ(PermissionsData::PageAccess::kDenied,
WebRequestPermissions::CanExtensionAccessURL(
permission_helper_, com_policy_extension_->id(), org_url,
-1, // No tab id.
false, // crosses_incognito
WebRequestPermissions::REQUIRE_HOST_PERMISSION_FOR_URL,
std::nullopt, kWebRequestType));
// Make sure that chrome:// URLs cannot be accessed.
const GURL chrome_url("chrome://version/");
EXPECT_EQ(PermissionsData::PageAccess::kDenied,
WebRequestPermissions::CanExtensionAccessURL(
permission_helper_, com_policy_extension_->id(), chrome_url,
-1, // No tab id.
false, // crosses_incognito
WebRequestPermissions::REQUIRE_HOST_PERMISSION_FOR_URL,
std::nullopt, kWebRequestType));
}
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