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// Copyright 2025 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/proxy_resolution_service.h"
#include <utility>
#include "base/logging.h"
#include "net/base/proxy_chain.h"
#include "net/base/proxy_delegate.h"
#include "net/log/net_log.h"
#include "net/log/net_log_event_type.h"
namespace net {
// static
void ProxyResolutionService::ProcessProxyRetryInfo(
const ProxyRetryInfoMap& new_retry_info,
ProxyRetryInfoMap& proxy_retry_info,
ProxyDelegate* proxy_delegate) {
if (new_retry_info.empty()) {
return;
}
if (proxy_delegate) {
proxy_delegate->OnSuccessfulRequestAfterFailures(new_retry_info);
}
for (const auto& [proxy_chain, retry_info] : new_retry_info) {
auto [it, inserted] = proxy_retry_info.try_emplace(proxy_chain, retry_info);
if (inserted) {
if (proxy_delegate) {
DCHECK(!proxy_chain.is_direct());
proxy_delegate->OnFallback(proxy_chain, retry_info.net_error);
}
} else if (it->second.bad_until < retry_info.bad_until) {
it->second.bad_until = retry_info.bad_until;
}
}
}
// static
base::Value::List ProxyResolutionService::BuildBadProxiesList(
const ProxyRetryInfoMap& proxy_retry_info) {
base::Value::List list;
list.reserve(proxy_retry_info.size());
for (const auto& [proxy_chain, retry_info] : proxy_retry_info) {
base::Value::Dict dict;
dict.Set("proxy_chain_uri", proxy_chain.ToDebugString());
dict.Set("bad_until", NetLog::TickCountToString(retry_info.bad_until));
list.Append(base::Value(std::move(dict)));
}
return list;
}
// static
void ProxyResolutionService::DeprioritizeBadProxyChains(
const ProxyRetryInfoMap& proxy_retry_info,
ProxyInfo* result,
const NetLogWithSource& net_log) {
// This check is done to only log the NetLog event when necessary, it's
// not a performance optimization.
if (!proxy_retry_info.empty()) {
result->DeprioritizeBadProxyChains(proxy_retry_info);
net_log.AddEvent(
NetLogEventType::PROXY_RESOLUTION_SERVICE_DEPRIORITIZED_BAD_PROXIES);
}
}
} // namespace net
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