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Issue 2351: Adding WebSocket proxy for Brave shields.
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Original file line number | Diff line number | Diff line change |
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/* Copyright 2019 The Brave Authors. All rights reserved. | ||
* This Source Code Form is subject to the terms of the Mozilla Public | ||
* License, v. 2.0. If a copy of the MPL was not distributed with this file, | ||
* You can obtain one at http://mozilla.org/MPL/2.0/. */ | ||
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#include "brave/browser/net/brave_proxying_utils.h" | ||
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#include <utility> | ||
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#include "brave/browser/net/brave_proxying_url_loader_factory.h" | ||
#include "brave/browser/net/brave_proxying_web_socket.h" | ||
#include "brave/browser/net/brave_request_handler.h" | ||
#include "content/public/browser/resource_context.h" | ||
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// User data key for ResourceContextData. | ||
const void* const kResourceContextUserDataKey = &kResourceContextUserDataKey; | ||
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ResourceContextData::ResourceContextData() | ||
: request_id_generator_(base::MakeRefCounted<RequestIDGenerator>()), | ||
weak_factory_(this) {} | ||
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ResourceContextData::~ResourceContextData() = default; | ||
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// static | ||
void ResourceContextData::StartProxying( | ||
content::ResourceContext* resource_context, | ||
int render_process_id, | ||
int frame_tree_node_id, | ||
network::mojom::URLLoaderFactoryRequest request, | ||
network::mojom::URLLoaderFactoryPtrInfo target_factory) { | ||
DCHECK_CURRENTLY_ON(content::BrowserThread::IO); | ||
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auto* self = static_cast<ResourceContextData*>( | ||
resource_context->GetUserData(kResourceContextUserDataKey)); | ||
if (!self) { | ||
self = new ResourceContextData(); | ||
resource_context->SetUserData(kResourceContextUserDataKey, | ||
base::WrapUnique(self)); | ||
} | ||
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if (!self->request_handler_) { | ||
self->request_handler_.reset(new BraveRequestHandler); | ||
} | ||
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auto proxy = std::make_unique<BraveProxyingURLLoaderFactory>( | ||
self->request_handler_.get(), resource_context, render_process_id, | ||
frame_tree_node_id, std::move(request), std::move(target_factory), | ||
self->request_id_generator_, | ||
base::BindOnce(&ResourceContextData::RemoveProxy, | ||
self->weak_factory_.GetWeakPtr())); | ||
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self->proxies_.emplace(std::move(proxy)); | ||
} | ||
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// static | ||
void ResourceContextData::StartProxyingWebSocket( | ||
content::ResourceContext* resource_context, | ||
int render_process_id, | ||
int frame_id, | ||
int frame_tree_node_id, | ||
const url::Origin& origin, | ||
network::mojom::WebSocketPtrInfo proxied_socket_ptr_info, | ||
network::mojom::WebSocketRequest proxied_request) { | ||
DCHECK_CURRENTLY_ON(content::BrowserThread::IO); | ||
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auto* self = static_cast<ResourceContextData*>( | ||
resource_context->GetUserData(kResourceContextUserDataKey)); | ||
if (!self) { | ||
self = new ResourceContextData(); | ||
resource_context->SetUserData(kResourceContextUserDataKey, | ||
base::WrapUnique(self)); | ||
} | ||
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if (!self->request_handler_) { | ||
self->request_handler_.reset(new BraveRequestHandler); | ||
} | ||
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auto proxy = std::make_unique<BraveProxyingWebSocket>( | ||
self->request_handler_.get(), resource_context, render_process_id, | ||
frame_id, frame_tree_node_id, origin, | ||
self->request_id_generator_, | ||
network::mojom::WebSocketPtr(std::move(proxied_socket_ptr_info)), | ||
std::move(proxied_request), | ||
base::BindOnce(&ResourceContextData::RemoveProxyWebSocket, | ||
self->weak_factory_.GetWeakPtr())); | ||
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self->websocket_proxies_.emplace(std::move(proxy)); | ||
} | ||
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void ResourceContextData::RemoveProxy(BraveProxyingURLLoaderFactory* proxy) { | ||
auto it = proxies_.find(proxy); | ||
DCHECK(it != proxies_.end()); | ||
proxies_.erase(it); | ||
} | ||
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void ResourceContextData::RemoveProxyWebSocket(BraveProxyingWebSocket* proxy) { | ||
auto it = websocket_proxies_.find(proxy); | ||
DCHECK(it != websocket_proxies_.end()); | ||
websocket_proxies_.erase(it); | ||
} | ||
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,94 @@ | ||
/* Copyright 2019 The Brave Authors. All rights reserved. | ||
* This Source Code Form is subject to the terms of the Mozilla Public | ||
* License, v. 2.0. If a copy of the MPL was not distributed with this file, | ||
* You can obtain one at http://mozilla.org/MPL/2.0/. */ | ||
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#ifndef BRAVE_BROWSER_NET_BRAVE_PROXYING_UTILS_H_ | ||
#define BRAVE_BROWSER_NET_BRAVE_PROXYING_UTILS_H_ | ||
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#include <cstdint> | ||
#include <memory> | ||
#include <set> | ||
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#include "base/containers/unique_ptr_adapters.h" | ||
#include "base/macros.h" | ||
#include "base/memory/ref_counted.h" | ||
#include "base/supports_user_data.h" | ||
#include "content/public/browser/browser_thread.h" | ||
#include "services/network/public/mojom/url_loader_factory.mojom.h" | ||
#include "services/network/public/mojom/websocket.mojom.h" | ||
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class BraveProxyingURLLoaderFactory; | ||
class BraveProxyingWebSocket; | ||
class BraveRequestHandler; | ||
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namespace content { | ||
class ResourceContext; | ||
} | ||
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// Used for both URLLoaders and WebSocket proxies. | ||
class RequestIDGenerator | ||
: public base::RefCountedThreadSafe<RequestIDGenerator> { | ||
public: | ||
RequestIDGenerator() = default; | ||
int64_t Generate() { | ||
DCHECK_CURRENTLY_ON(content::BrowserThread::IO); | ||
return ++id_; | ||
} | ||
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private: | ||
friend class base::RefCountedThreadSafe<RequestIDGenerator>; | ||
~RequestIDGenerator() {} | ||
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// Although this initialization can be done in a thread other than the IO | ||
// thread, we expect at least one memory barrier before actually calling | ||
// Generate in the IO thread, so we don't protect the variable with a lock. | ||
int64_t id_ = 0; | ||
DISALLOW_COPY_AND_ASSIGN(RequestIDGenerator); | ||
}; | ||
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// Owns proxying factories for URLLoaders and websocket proxies. There is | ||
// one |ResourceContextData| per profile. | ||
class ResourceContextData : public base::SupportsUserData::Data { | ||
public: | ||
~ResourceContextData() override; | ||
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static void StartProxying( | ||
content::ResourceContext* resource_context, | ||
int render_process_id, | ||
int frame_tree_node_id, | ||
network::mojom::URLLoaderFactoryRequest request, | ||
network::mojom::URLLoaderFactoryPtrInfo target_factory); | ||
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static void StartProxyingWebSocket( | ||
content::ResourceContext* resource_context, | ||
int render_process_id, | ||
int frame_id, | ||
int frame_tree_node_id, | ||
const url::Origin& origin, | ||
network::mojom::WebSocketPtrInfo proxied_socket_ptr_info, | ||
network::mojom::WebSocketRequest proxied_request); | ||
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void RemoveProxy(BraveProxyingURLLoaderFactory* proxy); | ||
void RemoveProxyWebSocket(BraveProxyingWebSocket* proxy); | ||
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private: | ||
ResourceContextData(); | ||
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std::unique_ptr<BraveRequestHandler> request_handler_; | ||
scoped_refptr<RequestIDGenerator> request_id_generator_; | ||
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std::set<std::unique_ptr<BraveProxyingURLLoaderFactory>, | ||
base::UniquePtrComparator> | ||
proxies_; | ||
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std::set<std::unique_ptr<BraveProxyingWebSocket>, | ||
base::UniquePtrComparator> | ||
websocket_proxies_; | ||
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base::WeakPtrFactory<ResourceContextData> weak_factory_; | ||
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DISALLOW_COPY_AND_ASSIGN(ResourceContextData); | ||
}; | ||
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#endif // BRAVE_BROWSER_NET_BRAVE_PROXYING_UTILS_H_ |
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