blob: e592713f215a482ecc9f44aad1184b1bb6014681 [file] [log] [blame]
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_DATA_REDUCTION_PROXY_BROWSER_DATA_REDUCTION_PROXY_PROTOCOL_H_
#define COMPONENTS_DATA_REDUCTION_PROXY_BROWSER_DATA_REDUCTION_PROXY_PROTOCOL_H_
#include "base/memory/ref_counted.h"
#include "components/data_reduction_proxy/common/data_reduction_proxy_headers.h"
#include "net/proxy/proxy_retry_info.h"
namespace base {
class TimeDelta;
}
namespace net {
class HttpResponseHeaders;
class ProxyConfig;
class ProxyInfo;
class ProxyServer;
class URLRequest;
}
class GURL;
namespace data_reduction_proxy {
class DataReductionProxyParams;
// Decides whether to mark the data reduction proxy as temporarily bad and
// put it on the proxy retry list. Returns true if the request should be
// retried. Sets |override_response_headers| to redirect if so. Returns
// the DataReductionProxyBypassType (if not NULL).
bool MaybeBypassProxyAndPrepareToRetry(
const DataReductionProxyParams* params,
net::URLRequest* request,
const net::HttpResponseHeaders* original_response_headers,
scoped_refptr<net::HttpResponseHeaders>* override_response_headers,
DataReductionProxyBypassType* proxy_bypass_type);
// Configure |result| to proceed directly to the origin if |result|'s current
// proxy is the data reduction proxy, the
// |net::LOAD_BYPASS_DATA_REDUCTION_PROXY| |load_flag| is set, and the
// DataCompressionProxyCriticalBypass Finch trial is set.
// This handler is intended to be invoked only by
// |ChromeNetworkDelegate.NotifyResolveProxy|.
void OnResolveProxyHandler(const GURL& url,
int load_flags,
const net::ProxyConfig& data_reduction_proxy_config,
const net::ProxyRetryInfoMap& proxy_retry_info,
const DataReductionProxyParams* params,
net::ProxyInfo* result);
// Returns true if the request method is idempotent. Only idempotent requests
// are retried on a bypass. Visible as part of the public API for testing.
bool IsRequestIdempotent(const net::URLRequest* request);
// Sets the override headers to contain a status line that indicates a
// redirect (a 302), a "Location:" header that points to the request url,
// and sets load flags to bypass proxies.
// Visible as part of the public API for testing.
void OverrideResponseAsRedirect(
net::URLRequest* request,
const net::HttpResponseHeaders* original_response_headers,
scoped_refptr<net::HttpResponseHeaders>* override_response_headers);
// Adds non-empty entries in |data_reduction_proxies| to the retry map
// maintained by the proxy service of the request. Adds
// |data_reduction_proxies.second| to the retry list only if |bypass_all| is
// true. Visible as part of the public API for testing.
void MarkProxiesAsBadUntil(net::URLRequest* request,
base::TimeDelta& bypass_duration,
bool bypass_all,
const std::pair<GURL, GURL>& data_reduction_proxies);
} // namespace data_reduction_proxy
#endif // COMPONENTS_DATA_REDUCTION_PROXY_BROWSER_DATA_REDUCTION_PROXY_PROTOCOL_H_