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// Copyright 2015 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/renderer_extension_registry.h"
#include "base/check.h"
#include "base/containers/contains.h"
#include "base/lazy_instance.h"
#include "base/unguessable_token.h"
#include "content/public/renderer/render_thread.h"
#include "extensions/common/extension_id.h"
#include "extensions/common/manifest_handlers/background_info.h"
#include "extensions/common/manifest_handlers/incognito_info.h"
#include "extensions/renderer/extensions_renderer_client.h"
namespace extensions {
namespace {
base::LazyInstance<RendererExtensionRegistry>::DestructorAtExit
g_renderer_extension_registry = LAZY_INSTANCE_INITIALIZER;
} // namespace
RendererExtensionRegistry::RendererExtensionRegistry() = default;
RendererExtensionRegistry::~RendererExtensionRegistry() = default;
// static
RendererExtensionRegistry* RendererExtensionRegistry::Get() {
return g_renderer_extension_registry.Pointer();
}
const ExtensionSet* RendererExtensionRegistry::GetMainThreadExtensionSet()
const {
// This can only be modified on the RenderThread, because
// GetMainThreadExtensionSet is inherently thread unsafe.
// Enforcing single-thread modification at least mitigates this.
// TODO(annekao): Remove this restriction once GetMainThreadExtensionSet is
// fixed.
DCHECK(content::RenderThread::Get());
base::AutoLock lock(lock_);
return &extensions_;
}
bool RendererExtensionRegistry::Contains(
const ExtensionId& extension_id) const {
base::AutoLock lock(lock_);
return extensions_.Contains(extension_id);
}
bool RendererExtensionRegistry::Insert(
const scoped_refptr<const Extension>& extension) {
DCHECK(content::RenderThread::Get());
base::AutoLock lock(lock_);
if (!BackgroundInfo::IsServiceWorkerBased(extension.get())) {
// Non-SW based extension should never have an activation token.
CHECK(!base::Contains(worker_activation_tokens_, extension->id()));
return extensions_.Insert(extension);
}
ExtensionsRendererClient* client = ExtensionsRendererClient::Get();
// SW based extensions should always have an activation token, except for
// incognito processes for a spanning mode extension. The CHECK() for all
// other worker based extension is performed in
// Dispatcher::WillEvaluateServiceWorkerOnWorkerThread(). We can't CHECK() for
// IsIncognitoProcess() == false here because this may be called on renderer
// process initialization before the boolean for that has been set.
bool is_incognito_spanning = client->IsIncognitoProcess() &&
IncognitoInfo::IsSpanningMode(extension.get());
if (is_incognito_spanning) {
CHECK(!base::Contains(worker_activation_tokens_, extension->id()));
}
return extensions_.Insert(extension);
}
bool RendererExtensionRegistry::Remove(const ExtensionId& id) {
DCHECK(content::RenderThread::Get());
base::AutoLock lock(lock_);
worker_activation_tokens_.erase(id);
return extensions_.Remove(id);
}
ExtensionId RendererExtensionRegistry::GetExtensionOrAppIDByURL(
const GURL& url) const {
base::AutoLock lock(lock_);
return extensions_.GetExtensionOrAppIDByURL(url);
}
const Extension* RendererExtensionRegistry::GetExtensionOrAppByURL(
const GURL& url,
bool include_guid) const {
base::AutoLock lock(lock_);
return extensions_.GetExtensionOrAppByURL(url, include_guid);
}
const Extension* RendererExtensionRegistry::GetHostedAppByURL(
const GURL& url) const {
base::AutoLock lock(lock_);
return extensions_.GetHostedAppByURL(url);
}
const Extension* RendererExtensionRegistry::GetByID(
const ExtensionId& id) const {
base::AutoLock lock(lock_);
return extensions_.GetByID(id);
}
ExtensionIdSet RendererExtensionRegistry::GetIDs() const {
base::AutoLock lock(lock_);
return extensions_.GetIDs();
}
bool RendererExtensionRegistry::ExtensionBindingsAllowed(
const GURL& url) const {
base::AutoLock lock(lock_);
return extensions_.ExtensionBindingsAllowed(url);
}
void RendererExtensionRegistry::SetWorkerActivationToken(
const scoped_refptr<const Extension>& extension,
base::UnguessableToken worker_activation_token) {
DCHECK(content::RenderThread::Get());
DCHECK(BackgroundInfo::IsServiceWorkerBased(extension.get()));
base::AutoLock lock(lock_);
worker_activation_tokens_[extension->id()] =
std::move(worker_activation_token);
}
std::optional<base::UnguessableToken>
RendererExtensionRegistry::GetWorkerActivationToken(
const ExtensionId& extension_id) const {
base::AutoLock lock(lock_);
auto iter = worker_activation_tokens_.find(extension_id);
if (iter == worker_activation_tokens_.end()) {
return std::nullopt;
}
return iter->second;
}
} // namespace extensions
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