options.h

/*    Copyright 2014 10gen Inc.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

#pragma once

#include <string>

#include "mongo/client/export_macros.h"
#include "mongo/logger/log_domain.h"
#include "mongo/logger/message_log_domain.h"
#include "mongo/stdx/functional.h"

namespace mongo {
namespace client {

class MONGO_CLIENT_API Options {
public:
    // Defaults for non-boolean or std::string parameters that are not defaulted to the
    // empty string. These are useful in case you which to set a parameter to a scale
    // factor or mutation of the default.
    static const unsigned int kDefaultAutoShutdownGracePeriodMillis = 0;
    static const int kDefaultDefaultLocalThresholdMillis = 15;

    // Helpful typedefs for logging-related options
    typedef std::auto_ptr<logger::MessageLogDomain::EventAppender> LogAppenderPtr;
    typedef stdx::function<LogAppenderPtr()> LogAppenderFactory;

    static const Options& current();

    Options();

    enum DefaultPorts { kDbServer = 27017, kShardServer = 27018, kConfigServer = 27019 };

    enum SSLModes {

        kSSLDisabled,

        // kSSLPreferred,

        kSSLRequired
    };

    enum TLSProtocol { kTLS1_0, kTLS1_1, kTLS1_2 };

    //
    // Startup and shutdown
    //

    Options& setCallShutdownAtExit(bool value = true);
    bool callShutdownAtExit() const;

    Options& setAutoShutdownGracePeriodMillis(unsigned int millis);
    unsigned int autoShutdownGracePeriodMillis() const;


    //
    // Replication
    //

    Options& setDefaultLocalThresholdMillis(int millis);
    int defaultLocalThresholdMillis() const;


    //
    // SSL
    //
    // NOTE: None of the below settings have any effect unless the driver
    // was compiled with SSL support.
    //
    // Glossary:
    //  - CA File: certificate authority certificate file
    //  - PEM Key File: SSL certificate file in PEM format
    //  - CRL: certificate revocation list
    //  - FIPS Mode: OpenSSL crypto library FIPS 140-2 mode processing
    //

    Options& setSSLMode(SSLModes sslMode = kSSLRequired);
    SSLModes SSLMode() const;

    inline bool SSLEnabled() const {
        return SSLMode() != kSSLDisabled;
    }

    Options& setFIPSMode(bool value = true);
    const bool FIPSMode() const;

    Options& setSSLDisabledTLSProtocols(const std::vector<TLSProtocol>& protocols);
    const std::vector<TLSProtocol>& SSLDisabledTLSProtocols() const;

    Options& setSSLCAFile(const std::string& fileName);
    const std::string& SSLCAFile() const;

    Options& setSSLPEMKeyFile(const std::string& fileName);
    const std::string& SSLPEMKeyFile() const;

    Options& setSSLPEMKeyPassword(const std::string& password);
    const std::string& SSLPEMKeyPassword() const;

    Options& setSSLCRLFile(const std::string& fileName);
    const std::string& SSLCRLFile() const;

    Options& setSSLAllowInvalidCertificates(bool value = true);
    const bool SSLAllowInvalidCertificates() const;

    Options& setSSLAllowInvalidHostnames(bool value = true);
    const bool SSLAllowInvalidHostnames() const;

    Options& setSSLCipherConfig(const std::string& config);
    const std::string& SSLCipherConfig() const;

    //
    // Logging
    //

    Options& setLogAppenderFactory(const LogAppenderFactory& factory);
    const LogAppenderFactory& logAppenderFactory() const;

    Options& setMinLoggedSeverity(logger::LogSeverity level);
    logger::LogSeverity minLoggedSeverity() const;

    //
    // Networking
    //

    Options& setIPv6Enabled(bool state);
    bool IPv6Enabled() const;

    //
    // Misc
    //

    Options& setValidateObjects(bool value = true);
    bool validateObjects() const;

private:
    bool _callShutdownAtExit;
    unsigned int _autoShutdownGracePeriodMillis;
    SSLModes _sslMode;
    bool _useFIPSMode;
    std::vector<TLSProtocol> _sslDisabledTLSProtocols;
    std::string _sslCAFile;
    std::string _sslPEMKeyFile;
    std::string _sslPEMKeyPassword;
    std::string _sslCRLFile;
    bool _sslAllowInvalidCertificates;
    bool _sslAllowInvalidHostnames;
    std::string _sslCipherConfig;
    int _defaultLocalThresholdMillis;
    LogAppenderFactory _appenderFactory;
    logger::LogSeverity _minLoggedSeverity;
    bool _IPv6Enabled;
    bool _validateObjects;
};

}  // namespace client
}  // namespace mongo