electron/shell/browser/net/resolve_proxy_helper.cc
Robo 26131b23b8
feat: add support for configuring system network context proxies (#41335)
* feat: add support for configuring system network context proxies

* chore: add specs

* chore: fix lint

* fix: address review feedback
2024-02-22 12:08:25 -05:00

98 lines
3.1 KiB
C++

// Copyright (c) 2018 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/browser/net/resolve_proxy_helper.h"
#include <utility>
#include "base/functional/bind.h"
#include "content/public/browser/browser_thread.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "net/base/network_anonymization_key.h"
#include "net/proxy_resolution/proxy_info.h"
using content::BrowserThread;
namespace electron {
ResolveProxyHelper::ResolveProxyHelper(
network::mojom::NetworkContext* network_context)
: network_context_(network_context) {}
ResolveProxyHelper::~ResolveProxyHelper() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DCHECK(!owned_self_);
DCHECK(!receiver_.is_bound());
// Clear all pending requests if the ProxyService is still alive.
pending_requests_.clear();
}
void ResolveProxyHelper::ResolveProxy(const GURL& url,
ResolveProxyCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
// Enqueue the pending request.
pending_requests_.emplace_back(url, std::move(callback));
// If nothing is in progress, start.
if (!receiver_.is_bound()) {
DCHECK_EQ(1u, pending_requests_.size());
StartPendingRequest();
}
}
void ResolveProxyHelper::StartPendingRequest() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DCHECK(!receiver_.is_bound());
DCHECK(!pending_requests_.empty());
// Start the request.
mojo::PendingRemote<network::mojom::ProxyLookupClient> proxy_lookup_client =
receiver_.BindNewPipeAndPassRemote();
receiver_.set_disconnect_handler(
base::BindOnce(&ResolveProxyHelper::OnProxyLookupComplete,
base::Unretained(this), net::ERR_ABORTED, std::nullopt));
network_context_->LookUpProxyForURL(pending_requests_.front().url,
net::NetworkAnonymizationKey(),
std::move(proxy_lookup_client));
}
void ResolveProxyHelper::OnProxyLookupComplete(
int32_t net_error,
const std::optional<net::ProxyInfo>& proxy_info) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DCHECK(!pending_requests_.empty());
receiver_.reset();
// Clear the current (completed) request.
PendingRequest completed_request = std::move(pending_requests_.front());
pending_requests_.pop_front();
std::string proxy;
if (proxy_info)
proxy = proxy_info->ToPacString();
if (!completed_request.callback.is_null())
std::move(completed_request.callback).Run(proxy);
// Start the next request.
if (!pending_requests_.empty())
StartPendingRequest();
}
ResolveProxyHelper::PendingRequest::PendingRequest(
const GURL& url,
ResolveProxyCallback callback)
: url(url), callback(std::move(callback)) {}
ResolveProxyHelper::PendingRequest::PendingRequest(
ResolveProxyHelper::PendingRequest&& pending_request) noexcept = default;
ResolveProxyHelper::PendingRequest::~PendingRequest() noexcept = default;
ResolveProxyHelper::PendingRequest&
ResolveProxyHelper::PendingRequest::operator=(
ResolveProxyHelper::PendingRequest&& pending_request) noexcept = default;
} // namespace electron