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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stddef.h>
#include <array>
#include <memory>
#include <utility>
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "chrome/browser/extensions/permissions/permissions_test_util.h"
#include "chrome/browser/extensions/permissions/permissions_updater.h"
#include "chrome/browser/extensions/test_extension_environment.h"
#include "chrome/common/extensions/permissions/chrome_permission_message_provider.h"
#include "chrome/grit/generated_resources.h"
#include "chrome/test/base/testing_profile.h"
#include "components/crx_file/id_util.h"
#include "extensions/browser/extension_prefs.h"
#include "extensions/browser/extension_registrar.h"
#include "extensions/common/extension.h"
#include "extensions/common/extension_builder.h"
#include "extensions/common/manifest.h"
#include "extensions/common/manifest_handlers/permissions_parser.h"
#include "extensions/common/permissions/permission_set.h"
#include "extensions/common/permissions/permissions_data.h"
#include "extensions/common/permissions/permissions_info.h"
#include "extensions/common/permissions/usb_device_permission.h"
#include "extensions/common/permissions/usb_device_permission_data.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/base/l10n/l10n_util.h"
using extensions::mojom::APIPermissionID;
namespace extensions {
// Tests that ChromePermissionMessageProvider provides not only correct, but
// meaningful permission messages that coalesce correctly where appropriate.
// There are 3 types of permission messages that need to be tested:
// 1. The combined list of active permissions, displayed at install time (or
// when the app has been disabled automatically and needs to be re-enabled)
// 2. The split list of active permissions, displayed in the App Info dialog,
// where the optional permissions are individually revokable
// 3. The list of requested optional permissions, displayed in a prompt to the
// user when the app requests these during runtime
// Some of these tests are prefixed AntiTest_, since they demonstrate existing
// problematic functionality. These tests are prefixed with AntiTest_ and will
// be changed as the correct behaviour is implemented. TODOs in the test explain
// the currently problematic behaviour.
class PermissionMessagesUnittest : public testing::Test {
public:
PermissionMessagesUnittest()
: message_provider_(new ChromePermissionMessageProvider()) {}
PermissionMessagesUnittest(const PermissionMessagesUnittest&) = delete;
PermissionMessagesUnittest& operator=(const PermissionMessagesUnittest&) =
delete;
~PermissionMessagesUnittest() override = default;
protected:
void CreateAndInstallExtensionWithPermissions(
base::Value::List required_permissions,
base::Value::List optional_permissions) {
app_ = ExtensionBuilder("Test")
.SetManifestKey("permissions", std::move(required_permissions))
.SetManifestKey("optional_permissions",
std::move(optional_permissions))
.SetID(crx_file::id_util::GenerateId("extension"))
.SetLocation(mojom::ManifestLocation::kInternal)
.Build();
env_.GetExtensionRegistrar()->AddExtension(app_.get());
}
// Returns the permission messages that would display in the prompt that
// requests all the optional permissions for the current |app_|.
std::vector<std::u16string> GetOptionalPermissionMessages() {
std::unique_ptr<const PermissionSet> granted_permissions =
env_.GetExtensionPrefs()->GetGrantedPermissions(app_->id());
const PermissionSet& optional_permissions =
PermissionsParser::GetOptionalPermissions(app_.get());
std::unique_ptr<const PermissionSet> requested_permissions =
PermissionSet::CreateDifference(optional_permissions,
*granted_permissions);
return GetMessages(*requested_permissions);
}
void GrantOptionalPermissions() {
permissions_test_util::GrantOptionalPermissionsAndWaitForCompletion(
env_.profile(), *app_,
PermissionsParser::GetOptionalPermissions(app_.get()));
}
std::vector<std::u16string> active_permissions() {
return GetMessages(app_->permissions_data()->active_permissions());
}
std::vector<std::u16string> required_permissions() {
return GetMessages(PermissionsParser::GetRequiredPermissions(app_.get()));
}
std::vector<std::u16string> optional_permissions() {
return GetMessages(PermissionsParser::GetOptionalPermissions(app_.get()));
}
private:
std::vector<std::u16string> GetMessages(const PermissionSet& permissions) {
std::vector<std::u16string> messages;
for (const PermissionMessage& msg :
message_provider_->GetPermissionMessages(
message_provider_->GetAllPermissionIDs(permissions,
app_->GetType()))) {
messages.push_back(msg.message());
}
return messages;
}
extensions::TestExtensionEnvironment env_;
std::unique_ptr<ChromePermissionMessageProvider> message_provider_;
scoped_refptr<const Extension> app_;
};
// If an app has both the 'history' and 'tabs' permission, one should hide the
// other (the 'history' permission has superset permissions).
TEST_F(PermissionMessagesUnittest, HistoryHidesTabsMessage) {
CreateAndInstallExtensionWithPermissions(
base::Value::List().Append("tabs").Append("history"),
base::Value::List());
ASSERT_EQ(1U, required_permissions().size());
EXPECT_EQ(l10n_util::GetStringUTF16(
IDS_EXTENSION_PROMPT_WARNING_HISTORY_WRITE_ON_ALL_DEVICES),
required_permissions()[0]);
ASSERT_EQ(0U, optional_permissions().size());
}
// If an app requests the 'history' permission, but already has the 'tabs'
// permission, only the new coalesced message is displayed.
TEST_F(PermissionMessagesUnittest, MixedPermissionMessagesCoalesceOnceGranted) {
CreateAndInstallExtensionWithPermissions(
base::Value::List().Append("tabs"),
base::Value::List().Append("history"));
ASSERT_EQ(1U, required_permissions().size());
EXPECT_EQ(
l10n_util::GetStringUTF16(IDS_EXTENSION_PROMPT_WARNING_HISTORY_READ),
required_permissions()[0]);
ASSERT_EQ(1U, optional_permissions().size());
EXPECT_EQ(l10n_util::GetStringUTF16(
IDS_EXTENSION_PROMPT_WARNING_HISTORY_WRITE_ON_ALL_DEVICES),
optional_permissions()[0]);
ASSERT_EQ(1U, active_permissions().size());
EXPECT_EQ(
l10n_util::GetStringUTF16(IDS_EXTENSION_PROMPT_WARNING_HISTORY_READ),
active_permissions()[0]);
ASSERT_EQ(1U, GetOptionalPermissionMessages().size());
EXPECT_EQ(l10n_util::GetStringUTF16(
IDS_EXTENSION_PROMPT_WARNING_HISTORY_WRITE_ON_ALL_DEVICES),
GetOptionalPermissionMessages()[0]);
GrantOptionalPermissions();
ASSERT_EQ(1U, active_permissions().size());
EXPECT_EQ(l10n_util::GetStringUTF16(
IDS_EXTENSION_PROMPT_WARNING_HISTORY_WRITE_ON_ALL_DEVICES),
active_permissions()[0]);
}
// AntiTest: This behavior should be changed and improved.
// If an app requests the 'tabs' permission but already has the 'history'
// permission, a prompt is displayed. However, no prompt should appear at all,
// since 'tabs' is a subset of 'history' and the final list of permissions are
// not affected by this grant.
TEST_F(PermissionMessagesUnittest,
AntiTest_PromptCanRequestSubsetOfAlreadyGrantedPermissions) {
CreateAndInstallExtensionWithPermissions(
base::Value::List().Append("history"),
base::Value::List().Append("tabs"));
ASSERT_EQ(1U, required_permissions().size());
EXPECT_EQ(l10n_util::GetStringUTF16(
IDS_EXTENSION_PROMPT_WARNING_HISTORY_WRITE_ON_ALL_DEVICES),
required_permissions()[0]);
ASSERT_EQ(1U, optional_permissions().size());
EXPECT_EQ(
l10n_util::GetStringUTF16(IDS_EXTENSION_PROMPT_WARNING_HISTORY_READ),
optional_permissions()[0]);
ASSERT_EQ(1U, active_permissions().size());
EXPECT_EQ(l10n_util::GetStringUTF16(
IDS_EXTENSION_PROMPT_WARNING_HISTORY_WRITE_ON_ALL_DEVICES),
active_permissions()[0]);
// TODO(sashab): This prompt should display no permissions, since READ is a
// subset permission of WRITE.
ASSERT_EQ(1U, GetOptionalPermissionMessages().size());
EXPECT_EQ(
l10n_util::GetStringUTF16(IDS_EXTENSION_PROMPT_WARNING_HISTORY_READ),
GetOptionalPermissionMessages()[0]);
GrantOptionalPermissions();
ASSERT_EQ(1U, active_permissions().size());
EXPECT_EQ(l10n_util::GetStringUTF16(
IDS_EXTENSION_PROMPT_WARNING_HISTORY_WRITE_ON_ALL_DEVICES),
active_permissions()[0]);
}
// AntiTest: This behavior should be changed and improved.
// If an app requests the 'sessions' permission, nothing is displayed in the
// permission request prompt. However, the required permissions for the app are
// actually modified, so the prompt *should* display a message to prevent this
// permission from being granted for free.
TEST_F(PermissionMessagesUnittest,
AntiTest_PromptCanBeEmptyButCausesChangeInPermissions) {
CreateAndInstallExtensionWithPermissions(
base::Value::List().Append("tabs"),
base::Value::List().Append("sessions"));
ASSERT_EQ(1U, required_permissions().size());
EXPECT_EQ(
l10n_util::GetStringUTF16(IDS_EXTENSION_PROMPT_WARNING_HISTORY_READ),
required_permissions()[0]);
ASSERT_EQ(0U, optional_permissions().size());
ASSERT_EQ(1U, active_permissions().size());
EXPECT_EQ(
l10n_util::GetStringUTF16(IDS_EXTENSION_PROMPT_WARNING_HISTORY_READ),
active_permissions()[0]);
// TODO(sashab): This prompt should display the sessions permission message,
// as well as warn the user that it can affect the existing 'tab' permission.
ASSERT_EQ(0U, GetOptionalPermissionMessages().size());
GrantOptionalPermissions();
ASSERT_EQ(1U, active_permissions().size());
EXPECT_EQ(l10n_util::GetStringUTF16(
IDS_EXTENSION_PROMPT_WARNING_HISTORY_READ_ON_ALL_DEVICES),
active_permissions()[0]);
}
class USBDevicePermissionMessagesTest : public testing::Test {
public:
USBDevicePermissionMessagesTest()
: message_provider_(new ChromePermissionMessageProvider()) {}
~USBDevicePermissionMessagesTest() override = default;
PermissionMessages GetMessages(const PermissionIDSet& permissions) {
return message_provider_->GetPermissionMessages(permissions);
}
private:
std::unique_ptr<ChromePermissionMessageProvider> message_provider_;
};
TEST_F(USBDevicePermissionMessagesTest, SingleDevice) {
{
const char16_t kMessage[] =
u"Access any PVR Mass Storage from HUMAX Co., Ltd. via USB";
auto permission_list =
base::Value::List().Append(base::Value::FromUniquePtrValue(
UsbDevicePermissionData(0x02ad, 0x138c, -1, -1).ToValue()));
base::Value permission_value = base::Value(std::move(permission_list));
UsbDevicePermission permission(
PermissionsInfo::GetInstance()->GetByID(APIPermissionID::kUsbDevice));
ASSERT_TRUE(permission.FromValue(&permission_value, nullptr, nullptr));
PermissionMessages messages = GetMessages(permission.GetPermissions());
ASSERT_EQ(1U, messages.size());
EXPECT_EQ(kMessage, messages.front().message());
}
{
const char16_t kMessage[] = u"Access USB devices from HUMAX Co., Ltd.";
base::Value::List permission_list;
permission_list.Append(base::Value::FromUniquePtrValue(
UsbDevicePermissionData(0x02ad, 0x138d, -1, -1).ToValue()));
base::Value permission_value = base::Value(std::move(permission_list));
UsbDevicePermission permission(
PermissionsInfo::GetInstance()->GetByID(APIPermissionID::kUsbDevice));
ASSERT_TRUE(permission.FromValue(&permission_value, nullptr, nullptr));
PermissionMessages messages = GetMessages(permission.GetPermissions());
ASSERT_EQ(1U, messages.size());
EXPECT_EQ(kMessage, messages.front().message());
}
{
const char16_t kMessage[] = u"Access USB devices from an unknown vendor";
base::Value::List permission_list;
permission_list.Append(base::Value::FromUniquePtrValue(
UsbDevicePermissionData(0x02ae, 0x138d, -1, -1).ToValue()));
base::Value permission_value = base::Value(std::move(permission_list));
UsbDevicePermission permission(
PermissionsInfo::GetInstance()->GetByID(APIPermissionID::kUsbDevice));
ASSERT_TRUE(permission.FromValue(&permission_value, nullptr, nullptr));
PermissionMessages messages = GetMessages(permission.GetPermissions());
ASSERT_EQ(1U, messages.size());
EXPECT_EQ(kMessage, messages.front().message());
}
}
TEST_F(USBDevicePermissionMessagesTest, MultipleDevice) {
const char16_t kMessage[] = u"Access any of these USB devices";
auto kDetails = std::to_array<const char*>({
"PVR Mass Storage from HUMAX Co., Ltd.",
"unknown devices from HUMAX Co., Ltd.",
"devices from an unknown vendor",
});
// Prepare data set
base::Value::List permission_list;
permission_list.Append(base::Value::FromUniquePtrValue(
UsbDevicePermissionData(0x02ad, 0x138c, -1, -1).ToValue()));
// This device's product ID is not in Chrome's database.
permission_list.Append(base::Value::FromUniquePtrValue(
UsbDevicePermissionData(0x02ad, 0x138d, -1, -1).ToValue()));
// This additional unknown product will be collapsed into the entry above.
permission_list.Append(base::Value::FromUniquePtrValue(
UsbDevicePermissionData(0x02ad, 0x138e, -1, -1).ToValue()));
// This device's vendor ID is not in Chrome's database.
permission_list.Append(base::Value::FromUniquePtrValue(
UsbDevicePermissionData(0x02ae, 0x138d, -1, -1).ToValue()));
// This additional unknown vendor will be collapsed into the entry above.
permission_list.Append(base::Value::FromUniquePtrValue(
UsbDevicePermissionData(0x02af, 0x138d, -1, -1).ToValue()));
base::Value permission_value = base::Value(std::move(permission_list));
UsbDevicePermission permission(
PermissionsInfo::GetInstance()->GetByID(APIPermissionID::kUsbDevice));
ASSERT_TRUE(permission.FromValue(&permission_value, nullptr, nullptr));
PermissionMessages messages = GetMessages(permission.GetPermissions());
ASSERT_EQ(1U, messages.size());
EXPECT_EQ(kMessage, messages.front().message());
const std::vector<std::u16string>& submessages =
messages.front().submessages();
ASSERT_EQ(std::size(kDetails), submessages.size());
for (size_t i = 0; i < submessages.size(); i++)
EXPECT_EQ(base::ASCIIToUTF16(kDetails[i]), submessages[i]);
}
} // namespace extensions
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