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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 "extensions/renderer/user_script_set_manager.h"
#include "base/observer_list.h"
#include "components/crx_file/id_util.h"
#include "content/public/renderer/render_thread.h"
#include "extensions/common/extension_id.h"
#include "extensions/common/mojom/host_id.mojom.h"
#include "extensions/renderer/dispatcher.h"
#include "extensions/renderer/script_injection.h"
#include "extensions/renderer/user_script_set.h"
namespace extensions {
UserScriptSetManager::UserScriptSetManager()
: activity_logging_enabled_(false) {
}
UserScriptSetManager::~UserScriptSetManager() {
}
void UserScriptSetManager::AddObserver(Observer* observer) {
observers_.AddObserver(observer);
}
void UserScriptSetManager::RemoveObserver(Observer* observer) {
observers_.RemoveObserver(observer);
}
std::unique_ptr<ScriptInjection>
UserScriptSetManager::GetInjectionForDeclarativeScript(
const std::string& script_id,
content::RenderFrame* render_frame,
int tab_id,
const GURL& url,
const ExtensionId& extension_id) {
UserScriptSet* user_script_set = GetScriptsByHostID(
mojom::HostID(mojom::HostID::HostType::kExtensions, extension_id));
if (!user_script_set)
return nullptr;
return user_script_set->GetDeclarativeScriptInjection(
script_id, render_frame, tab_id, mojom::RunLocation::kBrowserDriven, url,
activity_logging_enabled_);
}
void UserScriptSetManager::GetAllInjections(
std::vector<std::unique_ptr<ScriptInjection>>* injections,
content::RenderFrame* render_frame,
int tab_id,
mojom::RunLocation run_location) {
for (auto it = scripts_.begin(); it != scripts_.end(); ++it) {
it->second->GetInjections(injections, render_frame, tab_id, run_location,
activity_logging_enabled_);
}
}
void UserScriptSetManager::GetAllActiveExtensionIds(
std::set<ExtensionId>* ids) const {
DCHECK(ids);
for (auto it = scripts_.cbegin(); it != scripts_.cend(); ++it) {
if (it->first.type == mojom::HostID::HostType::kExtensions &&
it->second->HasScripts()) {
ids->insert(it->first.id);
}
}
}
UserScriptSet* UserScriptSetManager::GetScriptsByHostID(
const mojom::HostID& host_id) {
UserScriptSetMap::const_iterator it = scripts_.find(host_id);
return it != scripts_.end() ? it->second.get() : nullptr;
}
void UserScriptSetManager::OnUpdateUserScripts(
base::ReadOnlySharedMemoryRegion shared_memory,
const mojom::HostID& host_id) {
if (!shared_memory.IsValid()) {
NOTREACHED() << "Bad scripts handle";
}
if (host_id.type == mojom::HostID::HostType::kExtensions &&
!crx_file::id_util::IdIsValid(host_id.id)) {
NOTREACHED() << "Invalid extension id: " << host_id.id;
}
auto& scripts = scripts_[host_id];
if (!scripts)
scripts = std::make_unique<UserScriptSet>(host_id);
if (scripts->UpdateUserScripts(std::move(shared_memory))) {
for (auto& observer : observers_)
observer.OnUserScriptsUpdated(host_id);
}
}
void UserScriptSetManager::OnExtensionUnloaded(
const ExtensionId& extension_id) {
auto it = scripts_.find(
mojom::HostID(mojom::HostID::HostType::kExtensions, extension_id));
if (it != scripts_.end()) {
it->second->ClearUserScripts();
scripts_.erase(it);
}
}
} // namespace extensions
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