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/* Copyright 2012 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#pragma once
#include "mongo/base/status.h"
#include "mongo/bson/bsontypes.h"
#include "mongo/client/authenticate.h"
#include "mongo/executor/remote_command_request.h"
#include "mongo/executor/remote_command_response.h"
namespace mongo {
class BSONObj;
/**
* Attempts to authenticate "client" using the SASL protocol.
*
* Do not use directly in client code. Use the auth::authenticateClient() method, instead.
*
* Test against NULL for availability. Client driver must be compiled with SASL support _and_
* client application must have successfully executed mongo::runGlobalInitializersOrDie() or its
* ilk to make this functionality available.
*
* The "saslParameters" BSONObj should be initialized with zero or more of the
* fields below. Which fields are required depends on the mechanism. Consult the
* relevant IETF standards.
*
* "mechanism": The std::string name of the sasl mechanism to use. Mandatory.
* "autoAuthorize": Truthy values tell the server to automatically acquire privileges on
* all resources after successful authentication, which is the default. Falsey values
* instruct the server to await separate privilege-acquisition commands.
* "user": The std::string name of the user to authenticate.
* "db": The database target of the auth command, which identifies the location
* of the credential information for the user. May be "$external" if credential
* information is stored outside of the mongo cluster.
* "pwd": The password.
* "serviceName": The GSSAPI service name to use. Defaults to "mongodb".
* "serviceHostname": The GSSAPI hostname to use. Defaults to the name of the remote host.
*
* Other fields in saslParameters are silently ignored.
*
* Returns an OK status on success, and ErrorCodes::AuthenticationFailed if authentication is
* rejected. Other failures, all of which are tantamount to authentication failure, may also be
* returned.
*/
extern void (*saslClientAuthenticate)(auth::RunCommandHook runCommand,
const HostAndPort& hostname,
const BSONObj& saslParameters,
auth::AuthCompletionHandler handler);
/**
* Extracts the payload field from "cmdObj", and store it into "*payload".
*
* Sets "*type" to the BSONType of the payload field in cmdObj.
*
* If the type of the payload field is String, the contents base64 decodes and
* stores into "*payload". If the type is BinData, the contents are stored directly
* into "*payload". In all other cases, returns
*/
Status saslExtractPayload(const BSONObj& cmdObj, std::string* payload, BSONType* type);
// Constants
/// std::string name of the saslStart command.
extern const char* const saslStartCommandName;
/// std::string name of the saslContinue command.
extern const char* const saslContinueCommandName;
/// Name of the saslStart parameter indicating that the server should automatically grant the
/// connection all privileges associated with the user after successful authentication.
extern const char* const saslCommandAutoAuthorizeFieldName;
/// Name of the field containing the conversation identifier in server respones and saslContinue
/// commands.
extern const char* const saslCommandConversationIdFieldName;
/// Name of the field that indicates whether or not the server believes authentication has
/// completed successfully.
extern const char* const saslCommandDoneFieldName;
/// Name of parameter to saslStart command indiciating the client's desired sasl mechanism.
extern const char* const saslCommandMechanismFieldName;
/// In the event that saslStart supplies an unsupported mechanism, the server responds with a
/// field by this name, with a list of supported mechanisms.
extern const char* const saslCommandMechanismListFieldName;
/// Field containing password information for saslClientAuthenticate().
extern const char* const saslCommandPasswordFieldName;
/// Field containing sasl payloads passed to and from the server.
extern const char* const saslCommandPayloadFieldName;
/// Field containing the std::string identifier of the user to authenticate in
/// saslClientAuthenticate().
extern const char* const saslCommandUserFieldName;
/// Field containing the std::string identifier of the database containing credential information,
/// or "$external" if the credential information is stored outside of the mongo cluster.
extern const char* const saslCommandUserDBFieldName;
/// Field overriding the FQDN of the hostname hosting the mongodb srevice in
/// saslClientAuthenticate().
extern const char* const saslCommandServiceHostnameFieldName;
/// Field overriding the name of the mongodb service saslClientAuthenticate().
extern const char* const saslCommandServiceNameFieldName;
/// Default database against which sasl authentication commands should run.
extern const char* const saslDefaultDBName;
/// Default sasl service name, "mongodb".
extern const char* const saslDefaultServiceName;
// Field whose value should be set to true if the field in saslCommandPasswordFieldName needs to
// be digested.
extern const char* const saslCommandDigestPasswordFieldName;
}
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