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one/include/User.h
Ruben S. Montero 7686ca93e0 Merge branch 'master' into vdc-federation 
Conflicts:
	include/GroupPool.h
	include/UserPool.h
2014-01-23 16:36:22 +01:00

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/* -------------------------------------------------------------------------- */
/* Copyright 2002-2014, OpenNebula Project (OpenNebula.org), C12G Labs */
/* */
/* 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. */
/* -------------------------------------------------------------------------- */
#ifndef USER_H_
#define USER_H_
#include "PoolSQL.h"
#include "UserTemplate.h"
#include "ObjectCollection.h"
#include "QuotasSQL.h"
class UserQuotas;
using namespace std;
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
/**
* The User class.
*/
class User : public PoolObjectSQL, public ObjectCollection
{
public:
/**
* Characters that can not be in a name
*/
static const string INVALID_NAME_CHARS;
/**
* Characters that can not be in a password
*/
static const string INVALID_PASS_CHARS;
/**
* Function to print the User object into a string in XML format
* @param xml the resulting XML string
* @return a reference to the generated string
*/
string& to_xml(string& xml) const;
/**
* Function to print the User object into a string in
* XML format. The extended XML includes the default quotas
* @param xml the resulting XML string
* @return a reference to the generated string
*/
string& to_xml_extended(string& xml) const;
/**
* Check if the user is enabled
* @return true if the user is enabled
*/
bool isEnabled() const
{
return enabled;
}
/**
* Returns user password
* @return the User's password
*/
const string& get_password() const
{
return password;
};
/**
* Enables the current user
*/
void enable()
{
enabled = true;
};
/**
* Disables the current user
*/
void disable()
{
enabled = false;
invalidate_session();
};
/**
* Checks if a password is valid, i.e. it is not empty and does not
* contain invalid characters.
* @param pass Password to be checked
* @param error_str Returns the error reason, if any
* @return true if the string is valid
*/
static bool pass_is_valid(const string& pass, string& error_str);
/**
* Sets user password. It checks that the new password does not contain
* forbidden chars.
* @param _password the new pass
* @param error_str Returns the error reason, if any
* @returns -1 if the password is not valid
*/
int set_password(const string& passwd, string& error_str)
{
int rc = 0;
if (pass_is_valid(passwd, error_str))
{
password = passwd;
invalidate_session();
}
else
{
rc = -1;
}
return rc;
};
/**
* Returns user password
* @return the user's auth driver
*/
const string& get_auth_driver() const
{
return auth_driver;
};
/**
* Sets the user auth driver.
*
* @param _auth_driver the new auth. driver
* @param error_str Returns the error reason, if any
* @return 0 on success, -1 otherwise
*/
int set_auth_driver(const string& _auth_driver, string& error_str)
{
auth_driver = _auth_driver;
invalidate_session();
return 0;
};
/**
* Splits an authentication token (<usr>:<pass>)
* @param secret, the authentication token
* @param username
* @param password
* @return 0 on success
**/
static int split_secret(const string secret, string& user, string& pass);
/**
* Factory method for image templates
*/
Template * get_new_template() const
{
return new UserTemplate;
}
/**
* Object quotas, provides set and check interface
*/
UserQuotas quota;
/**
* Returns the UMASK template attribute (read as an octal number), or the
* default UMASK from oned.conf if it does not exist
*
* @return the UMASK to create new objects
*/
int get_umask() const;
/**
* Returns a copy of the groups for the user
*/
set<int> get_groups()
{
return get_collection_copy();
};
// *************************************************************************
// Group IDs set Management
// *************************************************************************
/**
* Adds a group ID to the groups set.
*
* @param id The new id
* @return 0 on success, -1 if the ID was already in the set
*/
int add_group(int group_id)
{
return add_collection_id(group_id);
}
/**
* Deletes a group ID from the groups set.
*
* @param id The id
* @return 0 on success,
* -1 if the ID was not in the set,
* -2 if the group to delete is the main group
*/
int del_group(int group_id)
{
if( group_id == gid )
{
return -2;
}
return del_collection_id(group_id);
}
// *************************************************************************
// Quotas
// *************************************************************************
/**
* Writes/updates the User quotas fields in the database.
* @param db pointer to the db
* @return 0 on success
*/
int update_quotas(SqlDB *db)
{
return quota.update(oid, db);
};
private:
// -------------------------------------------------------------------------
// Friends
// -------------------------------------------------------------------------
friend class UserPool;
// -------------------------------------------------------------------------
// User Attributes
// -------------------------------------------------------------------------
/**
* User's password
*/
string password;
/**
* Authentication driver for this user
*/
string auth_driver;
/**
* Flag marking user enabled/disabled
*/
bool enabled;
// *************************************************************************
// Authentication session (Private)
// *************************************************************************
/**
* Until when the session_token is valid
*/
time_t session_expiration_time;
/**
* Last authentication token validated by the driver, can
* be trusted until the session_expiration_time
*/
string session_token;
/**
* Checks if a session token is authorized and still valid
*
* @param token The authentication token
* @return true if the token is still valid
*/
bool valid_session(const string& token)
{
return (( session_token == token ) &&
( time(0) < session_expiration_time ) );
};
/**
* Resets the authentication session
*/
void invalidate_session()
{
session_token.clear();
session_expiration_time = 0;
};
/**
* Stores the given session token for a limited time. This eliminates the
* need to call the external authentication driver until the time expires.
*
* @param token The authenticated token
* @param validity_time
*/
void set_session(const string& token, time_t validity_time)
{
session_token = token;
session_expiration_time = time(0) + validity_time;
};
// *************************************************************************
// DataBase implementation (Private)
// *************************************************************************
/**
* Execute an INSERT or REPLACE Sql query.
* @param db The SQL DB
* @param replace Execute an INSERT or a REPLACE
* @param error_str Returns the error reason, if any
* @return 0 one success
*/
int insert_replace(SqlDB *db, bool replace, string& error_str);
/**
* Bootstraps the database table(s) associated to the User
* @return 0 on success
*/
static int bootstrap(SqlDB * db)
{
int rc;
ostringstream oss_user(User::db_bootstrap);
ostringstream oss_quota(UserQuotas::db_bootstrap);
rc = db->exec(oss_user);
rc += db->exec(oss_quota);
return rc;
};
/**
* Reads the User (identified with its OID) from the database.
* @param db pointer to the db
* @return 0 on success
*/
int select(SqlDB * db);
/**
* Reads the User (identified with its OID) from the database.
* @param db pointer to the db
* @param name of the user
* @param uid of the owner
*
* @return 0 on success
*/
int select(SqlDB * db, const string& name, int uid);
/**
* Drops the user from the database
* @param db pointer to the db
* @return 0 on success
*/
int drop(SqlDB *db);
/**
* Rebuilds the object from an xml formatted string
* @param xml_str The xml-formatted string
*
* @return 0 on success, -1 otherwise
*/
int from_xml(const string &xml_str);
/**
* Function to print the User object into a string in
* XML format
* @param xml the resulting XML string
* @param extended If true, default quotas are included
* @return a reference to the generated string
*/
string& to_xml_extended(string& xml, bool extended) const;
protected:
// *************************************************************************
// Constructor
// *************************************************************************
User(int id,
int _gid,
const string& _uname,
const string& _gname,
const string& _password,
const string& _auth_driver,
bool _enabled):
PoolObjectSQL(id,USER,_uname,-1,_gid,"",_gname,table),
ObjectCollection("GROUPS"),
quota(),
password(_password),
auth_driver(_auth_driver),
enabled(_enabled),
session_expiration_time(0),
session_token("")
{
obj_template = new UserTemplate;
};
virtual ~User()
{
delete obj_template;
};
// *************************************************************************
// DataBase implementation
// *************************************************************************
static const char * db_names;
static const char * db_bootstrap;
static const char * table;
/**
* Writes the User in the database.
* @param db pointer to the db
* @return 0 on success
*/
int insert(SqlDB *db, string& error_str);
/**
* Writes/updates the User data fields in the database. This method does
* not update the user's quotas
* @param db pointer to the db
* @return 0 on success
*/
int update(SqlDB *db)
{
string error_str;
return insert_replace(db, true, error_str);
};
};
#endif /*USER_H_*/
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