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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <optional>
#include <string>
#include "base/test/task_environment.h"
#include "extensions/common/extension_id.h"
#include "extensions/common/mojom/host_id.mojom.h"
#include "extensions/common/mojom/renderer.mojom.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace extensions {
namespace {
// Test implementation of mojom::Renderer.
class TestRendererImpl : public mojom::Renderer {
public:
explicit TestRendererImpl(mojo::PendingReceiver<mojom::Renderer> receiver)
: receiver_(this, std::move(receiver)) {}
TestRendererImpl(const TestRendererImpl&) = delete;
TestRendererImpl& operator=(const TestRendererImpl&) = delete;
// mojom::Renderer (methods with ExtensionId arguments):
void ActivateExtension(const ExtensionId& extension_id) override {}
void UnloadExtension(const ExtensionId& extension_id) override {}
void SuspendExtension(
const ExtensionId& extension_id,
mojom::Renderer::SuspendExtensionCallback callback) override {
std::move(callback).Run();
}
void CancelSuspendExtension(const ExtensionId& extension_id) override {}
void SetUserScriptsAllowed(const ExtensionId& extension_id,
bool enabled) override {}
void SetScriptingAllowlist(
const std::vector<ExtensionId>& extension_ids) override {}
void ClearUserScriptWorldConfig(
const ExtensionId& extension_id,
const std::optional<std::string>& world_id) override {}
void UpdatePermissions(const ExtensionId& extension_id,
PermissionSet active_permissions,
PermissionSet withheld_permissions,
URLPatternSet policy_blocked_hosts,
URLPatternSet policy_allowed_hosts,
bool uses_default_policy_host_restrictions) override {}
void UpdateTabSpecificPermissions(const ExtensionId& extension_id,
URLPatternSet new_hosts,
int tab_id,
bool update_origin_allowlist) override {}
void ClearTabSpecificPermissions(
const std::vector<ExtensionId>& extension_ids,
int tab_id,
bool update_origin_allowlist) override {}
// mojom::Renderer (other methods):
void SetActivityLoggingEnabled(bool enabled) override {}
void LoadExtensions(
std::vector<mojom::ExtensionLoadedParamsPtr> loaded_extensions) override {
}
void SetDeveloperMode(bool current_developer_mode) override {}
void SetSessionInfo(version_info::Channel channel,
mojom::FeatureSessionType session_type) override {}
void SetSystemFont(const std::string& font_family,
const std::string& font_size) override {}
void SetWebViewPartitionID(const std::string& partition_id) override {}
void UpdateUserScriptWorlds(
std::vector<mojom::UserScriptWorldInfoPtr> infos) override {}
void ShouldSuspend(ShouldSuspendCallback callback) override {
std::move(callback).Run();
}
void TransferBlobs(TransferBlobsCallback callback) override {
std::move(callback).Run();
}
void UpdateDefaultPolicyHostRestrictions(
URLPatternSet default_policy_blocked_hosts,
URLPatternSet default_policy_allowed_hosts) override {}
void UpdateUserHostRestrictions(URLPatternSet user_blocked_hosts,
URLPatternSet user_allowed_hosts) override {}
void UpdateUserScripts(base::ReadOnlySharedMemoryRegion shared_memory,
mojom::HostIDPtr host_id) override {}
void WatchPages(const std::vector<std::string>& css_selectors) override {}
private:
mojo::Receiver<mojom::Renderer> receiver_;
};
class RendererMojomExtensionIdTest : public testing::Test {
public:
RendererMojomExtensionIdTest() {
renderer_impl_ = std::make_unique<TestRendererImpl>(
renderer_remote_.BindNewPipeAndPassReceiver());
}
void ActivateExtension(const ExtensionId& extension_id) {
renderer_remote_->ActivateExtension(extension_id);
renderer_remote_.FlushForTesting();
}
void UnloadExtension(const ExtensionId& extension_id) {
renderer_remote_->UnloadExtension(extension_id);
renderer_remote_.FlushForTesting();
}
void SuspendExtension(const ExtensionId& extension_id) {
renderer_remote_->SuspendExtension(extension_id, base::DoNothing());
renderer_remote_.FlushForTesting();
}
void CancelSuspendExtension(const ExtensionId& extension_id) {
renderer_remote_->CancelSuspendExtension(extension_id);
renderer_remote_.FlushForTesting();
}
void SetUserScriptsAllowed(const ExtensionId& extension_id) {
renderer_remote_->SetUserScriptsAllowed(extension_id, true);
renderer_remote_.FlushForTesting();
}
void SetScriptingAllowlist(const std::vector<ExtensionId>& extension_ids) {
renderer_remote_->SetScriptingAllowlist(extension_ids);
renderer_remote_.FlushForTesting();
}
void ClearUserScriptWorldConfig(const ExtensionId& extension_id) {
renderer_remote_->ClearUserScriptWorldConfig(extension_id, std::nullopt);
renderer_remote_.FlushForTesting();
}
void UpdatePermissions(const ExtensionId& extension_id) {
renderer_remote_->UpdatePermissions(extension_id, PermissionSet(),
PermissionSet(), URLPatternSet(),
URLPatternSet(), false);
renderer_remote_.FlushForTesting();
}
void UpdateTabSpecificPermissions(const ExtensionId& extension_id) {
renderer_remote_->UpdateTabSpecificPermissions(extension_id,
URLPatternSet(), 1, true);
renderer_remote_.FlushForTesting();
}
void ClearTabSpecificPermissions(
const std::vector<ExtensionId>& extension_ids) {
renderer_remote_->ClearTabSpecificPermissions(extension_ids, 1, true);
renderer_remote_.FlushForTesting();
}
bool IsPipeConnected() { return renderer_remote_.is_connected(); }
void RebindReceiver() {
renderer_impl_.reset();
renderer_remote_.reset();
renderer_impl_ = std::make_unique<TestRendererImpl>(
renderer_remote_.BindNewPipeAndPassReceiver());
}
private:
base::test::SingleThreadTaskEnvironment task_environment_;
mojo::Remote<mojom::Renderer> renderer_remote_;
std::unique_ptr<TestRendererImpl> renderer_impl_;
};
// Tests that passing valid extension IDs to mojom::Renderer implementations
// pass message validation and keep the mojom pipe connected.
TEST_F(RendererMojomExtensionIdTest, ValidExtensionId) {
ExtensionId valid_extension_id(32, 'a');
std::vector<ExtensionId> valid_extension_ids = {valid_extension_id};
ActivateExtension(valid_extension_id);
ASSERT_TRUE(IsPipeConnected());
UnloadExtension(valid_extension_id);
ASSERT_TRUE(IsPipeConnected());
SuspendExtension(valid_extension_id);
ASSERT_TRUE(IsPipeConnected());
CancelSuspendExtension(valid_extension_id);
ASSERT_TRUE(IsPipeConnected());
SetUserScriptsAllowed(valid_extension_id);
ASSERT_TRUE(IsPipeConnected());
SetScriptingAllowlist(valid_extension_ids);
ASSERT_TRUE(IsPipeConnected());
ClearUserScriptWorldConfig(valid_extension_id);
ASSERT_TRUE(IsPipeConnected());
UpdatePermissions(valid_extension_id);
ASSERT_TRUE(IsPipeConnected());
UpdateTabSpecificPermissions(valid_extension_id);
ASSERT_TRUE(IsPipeConnected());
ClearTabSpecificPermissions(valid_extension_ids);
ASSERT_TRUE(IsPipeConnected());
}
// Tests that passing invalid extension IDs to mojom::Renderer
// implementations fail message validation and close the mojom pipe.
TEST_F(RendererMojomExtensionIdTest, InvalidExtensionId) {
ExtensionId valid_extension_id(32, 'a');
ExtensionId invalid_extension_id = "invalid_id";
std::vector<ExtensionId> invalid_extension_ids = {invalid_extension_id};
std::vector<ExtensionId> mixed_extension_ids = {valid_extension_id,
invalid_extension_id};
// Test with invalid extension IDs.
ActivateExtension(invalid_extension_id);
ASSERT_FALSE(IsPipeConnected());
RebindReceiver();
UnloadExtension(invalid_extension_id);
ASSERT_FALSE(IsPipeConnected());
RebindReceiver();
SuspendExtension(invalid_extension_id);
ASSERT_FALSE(IsPipeConnected());
RebindReceiver();
CancelSuspendExtension(invalid_extension_id);
ASSERT_FALSE(IsPipeConnected());
RebindReceiver();
SetUserScriptsAllowed(invalid_extension_id);
ASSERT_FALSE(IsPipeConnected());
RebindReceiver();
ClearUserScriptWorldConfig(invalid_extension_id);
ASSERT_FALSE(IsPipeConnected());
RebindReceiver();
UpdatePermissions(invalid_extension_id);
ASSERT_FALSE(IsPipeConnected());
RebindReceiver();
UpdateTabSpecificPermissions(invalid_extension_id);
ASSERT_FALSE(IsPipeConnected());
RebindReceiver();
SetScriptingAllowlist(invalid_extension_ids);
ASSERT_FALSE(IsPipeConnected());
RebindReceiver();
ClearTabSpecificPermissions(invalid_extension_ids);
ASSERT_FALSE(IsPipeConnected());
RebindReceiver();
// Test with a mix of valid and invalid IDs in the vector.
SetScriptingAllowlist(mixed_extension_ids);
ASSERT_FALSE(IsPipeConnected());
RebindReceiver();
ClearTabSpecificPermissions(mixed_extension_ids);
ASSERT_FALSE(IsPipeConnected());
}
} // namespace
} // namespace extensions
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