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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef NET_BASE_SSL_CONFIG_SERVICE_H__
#define NET_BASE_SSL_CONFIG_SERVICE_H__
#include "base/time.h"
namespace net {
// A collection of SSL-related configuration settings.
struct SSLConfig {
// Default to no revocation checking.
// Default to SSL 2.0 off, SSL 3.0 on, and TLS 1.0 on.
SSLConfig()
: rev_checking_enabled(false), ssl2_enabled(false),
ssl3_enabled(true), tls1_enabled(true) {
}
bool rev_checking_enabled; // True if server certificate revocation
// checking is enabled.
bool ssl2_enabled; // True if SSL 2.0 is enabled.
bool ssl3_enabled; // True if SSL 3.0 is enabled.
bool tls1_enabled; // True if TLS 1.0 is enabled.
};
// This class is responsible for getting and setting the SSL configuration.
//
// We think the SSL configuration settings should apply to all applications
// used by the user. We consider IE's Internet Options as the de facto
// system-wide network configuration settings, so we just use the values
// from IE's Internet Settings registry key.
class SSLConfigService {
public:
SSLConfigService();
explicit SSLConfigService(TimeTicks now); // Used for testing.
~SSLConfigService() { }
// Get the current SSL configuration settings. Can be called on any
// thread.
static bool GetSSLConfigNow(SSLConfig* config);
// Setters. Can be called on any thread.
static void SetRevCheckingEnabled(bool enabled);
static void SetSSL2Enabled(bool enabled);
// Get the (cached) SSL configuration settings that are fresh within 10
// seconds. This is cheaper than GetSSLConfigNow and is suitable when
// we don't need the absolutely current configuration settings. This
// method is not thread-safe, so it must be called on the same thread.
void GetSSLConfig(SSLConfig* config) {
GetSSLConfigAt(config, TimeTicks::Now());
}
// Used for testing.
void GetSSLConfigAt(SSLConfig* config, TimeTicks now);
private:
void UpdateConfig(TimeTicks now);
// We store the IE SSL config and the time that we fetched it.
SSLConfig config_info_;
TimeTicks config_time_;
DISALLOW_EVIL_CONSTRUCTORS(SSLConfigService);
};
} // namespace net
#endif // NET_BASE_SSL_CONFIG_SERVICE_H__
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