electron/shell/browser/protocol_registry.cc

101 lines
3.6 KiB
C++

// Copyright (c) 2020 Slack Technologies, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/browser/protocol_registry.h"
#include "electron/fuses.h"
#include "shell/browser/electron_browser_context.h"
#include "shell/browser/net/asar/asar_url_loader_factory.h"
namespace electron {
// static
ProtocolRegistry* ProtocolRegistry::FromBrowserContext(
content::BrowserContext* context) {
return static_cast<ElectronBrowserContext*>(context)->protocol_registry();
}
ProtocolRegistry::ProtocolRegistry() = default;
ProtocolRegistry::~ProtocolRegistry() = default;
void ProtocolRegistry::RegisterURLLoaderFactories(
content::ContentBrowserClient::NonNetworkURLLoaderFactoryMap* factories,
bool allow_file_access) {
if (electron::fuses::IsGrantFileProtocolExtraPrivilegesEnabled()) {
auto file_factory = factories->find(url::kFileScheme);
if (file_factory != factories->end()) {
// If Chromium already allows file access then replace the url factory to
// also loading asar files.
file_factory->second = AsarURLLoaderFactory::Create();
} else if (allow_file_access) {
// Otherwise only allow file access when it is explicitly allowed.
//
// Note that Chromium may call |emplace| to create the default file
// factory after this call, it won't override our asar factory, but if
// asar support breaks in future, please check if Chromium has changed the
// call.
factories->emplace(url::kFileScheme, AsarURLLoaderFactory::Create());
}
}
for (const auto& it : handlers_) {
factories->emplace(it.first, ElectronURLLoaderFactory::Create(
it.second.first, it.second.second));
}
}
mojo::PendingRemote<network::mojom::URLLoaderFactory>
ProtocolRegistry::CreateNonNetworkNavigationURLLoaderFactory(
const std::string& scheme) {
if (scheme == url::kFileScheme) {
if (electron::fuses::IsGrantFileProtocolExtraPrivilegesEnabled()) {
return AsarURLLoaderFactory::Create();
}
} else {
auto handler = handlers_.find(scheme);
if (handler != handlers_.end()) {
return ElectronURLLoaderFactory::Create(handler->second.first,
handler->second.second);
}
}
return {};
}
bool ProtocolRegistry::RegisterProtocol(ProtocolType type,
const std::string& scheme,
const ProtocolHandler& handler) {
return handlers_.try_emplace(scheme, type, handler).second;
}
bool ProtocolRegistry::UnregisterProtocol(const std::string& scheme) {
return handlers_.erase(scheme) != 0;
}
const HandlersMap::mapped_type* ProtocolRegistry::FindRegistered(
const std::string_view scheme) const {
const auto& map = handlers_;
const auto iter = map.find(scheme);
return iter != std::end(map) ? &iter->second : nullptr;
}
bool ProtocolRegistry::InterceptProtocol(ProtocolType type,
const std::string& scheme,
const ProtocolHandler& handler) {
return intercept_handlers_.try_emplace(scheme, type, handler).second;
}
bool ProtocolRegistry::UninterceptProtocol(const std::string& scheme) {
return intercept_handlers_.erase(scheme) != 0;
}
const HandlersMap::mapped_type* ProtocolRegistry::FindIntercepted(
const std::string_view scheme) const {
const auto& map = intercept_handlers_;
const auto iter = map.find(scheme);
return iter != std::end(map) ? &iter->second : nullptr;
}
} // namespace electron