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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/proxy_resolution/win/windows_system_proxy_resolution_request.h"
#include <utility>
#include "net/base/net_errors.h"
#include "net/proxy_resolution/proxy_info.h"
#include "net/proxy_resolution/proxy_list.h"
#include "net/proxy_resolution/win/windows_system_proxy_resolution_service.h"
#include "net/traffic_annotation/network_traffic_annotation.h"
namespace net {
namespace {
constexpr net::NetworkTrafficAnnotationTag kWindowsResolverTrafficAnnotation =
net::DefineNetworkTrafficAnnotation("proxy_config_windows_resolver", R"(
semantics {
sender: "Proxy Config for Windows System Resolver"
description:
"Establishing a connection through a proxy server using system proxy "
"settings and Windows system proxy resolution code."
trigger:
"Whenever a network request is made when the system proxy settings "
"are used, the Windows system proxy resolver is enabled, and the "
"result indicates usage of a proxy server."
data:
"Proxy configuration."
destination: OTHER
destination_other:
"The proxy server specified in the configuration."
}
policy {
cookies_allowed: NO
setting:
"User cannot override system proxy settings, but can change them "
"through 'Advanced/System/Open proxy settings'."
policy_exception_justification:
"Using either of 'ProxyMode', 'ProxyServer', or 'ProxyPacUrl' "
"policies can set Chrome to use a specific proxy settings and avoid "
"system proxy."
})");
} // namespace
WindowsSystemProxyResolutionRequest::WindowsSystemProxyResolutionRequest(
WindowsSystemProxyResolutionService* service,
const GURL& url,
const std::string& method,
ProxyInfo* results,
CompletionOnceCallback user_callback,
const NetLogWithSource& net_log,
WindowsSystemProxyResolver* windows_system_proxy_resolver)
: service_(service),
user_callback_(std::move(user_callback)),
results_(results),
url_(url),
method_(method),
net_log_(net_log),
creation_time_(base::TimeTicks::Now()) {
DCHECK(!user_callback_.is_null());
DCHECK(windows_system_proxy_resolver);
proxy_resolution_request_ =
windows_system_proxy_resolver->GetProxyForUrl(url, this);
}
WindowsSystemProxyResolutionRequest::~WindowsSystemProxyResolutionRequest() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (service_) {
service_->RemovePendingRequest(this);
net_log_.AddEvent(NetLogEventType::CANCELLED);
CancelResolveRequest();
net_log_.EndEvent(NetLogEventType::PROXY_RESOLUTION_SERVICE);
}
}
LoadState WindowsSystemProxyResolutionRequest::GetLoadState() const {
// TODO(crbug.com/40111093): Consider adding a LoadState for "We're
// waiting on system APIs to do their thing".
return LOAD_STATE_RESOLVING_PROXY_FOR_URL;
}
void WindowsSystemProxyResolutionRequest::CancelResolveRequest() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
proxy_resolution_request_.reset();
}
void WindowsSystemProxyResolutionRequest::ProxyResolutionComplete(
const ProxyList& proxy_list,
WinHttpStatus winhttp_status,
int windows_error) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(!was_completed());
// TODO(crbug.com/40111093): Log Windows error |windows_error|.
proxy_resolution_request_.reset();
results_->UseProxyList(proxy_list);
// Note that DidFinishResolvingProxy might modify |results_|.
int net_error = service_->DidFinishResolvingProxy(url_, method_, results_,
winhttp_status, net_log_);
// Make a note in the results which configuration was in use at the
// time of the resolve.
results_->set_proxy_resolve_start_time(creation_time_);
results_->set_proxy_resolve_end_time(base::TimeTicks::Now());
results_->set_traffic_annotation(
MutableNetworkTrafficAnnotationTag(kWindowsResolverTrafficAnnotation));
CompletionOnceCallback callback = std::move(user_callback_);
service_->RemovePendingRequest(this);
service_ = nullptr;
user_callback_.Reset();
std::move(callback).Run(net_error);
}
WindowsSystemProxyResolver::Request*
WindowsSystemProxyResolutionRequest::GetProxyResolutionRequestForTesting() {
return proxy_resolution_request_.get();
}
void WindowsSystemProxyResolutionRequest::
ResetProxyResolutionRequestForTesting() {
proxy_resolution_request_.reset();
}
} // namespace net
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