/**

 * vim: set ts=4 :

 * =============================================================================

 * SourceMod (C)2004-2008 AlliedModders LLC.  All rights reserved.

 * =============================================================================

 *

 * This file is part of the SourceMod/SourcePawn SDK.

 *

 * This program is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, version 3.0, 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 General Public License for more

 * details.

 *

 * You should have received a copy of the GNU General Public License along with

 * this program.  If not, see <http://www.gnu.org/licenses/>.

 *

 * As a special exception, AlliedModders LLC gives you permission to link the

 * code of this program (as well as its derivative works) to "Half-Life 2," the

 * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software

 * by the Valve Corporation.  You must obey the GNU General Public License in

 * all respects for all other code used.  Additionally, AlliedModders LLC grants

 * this exception to all derivative works.  AlliedModders LLC defines further

 * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),

 * or <http://www.sourcemod.net/license.php>.

 *

 * Version: $Id$

 */

#if defined _admin_included

 #endinput

#endif

#define _admin_included

/**

 * Access levels (flags) for admins.

 */

enum AdminFlag

{

	Admin_Reservation = 0,	/**< Reserved slot */

	Admin_Generic,			/**< Generic admin abilities */

	Admin_Kick,				/**< Kick another user */

	Admin_Ban,				/**< Ban another user */

	Admin_Unban,			/**< Unban another user */

	Admin_Slay,				/**< Slay/kill/damage another user */

	Admin_Changemap,		/**< Change the map */

	Admin_Convars,			/**< Change basic convars */

	Admin_Config,			/**< Change configuration */

	Admin_Chat,				/**< Special chat privileges */

	Admin_Vote,				/**< Special vote privileges */

	Admin_Password,			/**< Set a server password */

	Admin_RCON,				/**< Use RCON */

	Admin_Cheats,			/**< Change sv_cheats and use its commands */

	Admin_Root,				/**< All access by default */

	Admin_Custom1,			/**< First custom flag type */

	Admin_Custom2,			/**< Second custom flag type */

	Admin_Custom3,			/**< Third custom flag type */

	Admin_Custom4,			/**< Fourth custom flag type */

	Admin_Custom5,			/**< Fifth custom flag type */

	Admin_Custom6,			/**< Sixth custom flag type */

	/* --- */

};

#define AdminFlags_TOTAL	21		/**< Total number of admin flags */

/**

 * @section Bitwise values definitions for admin flags.

 */

#define ADMFLAG_RESERVATION			(1<<0)		/**< Convenience macro for Admin_Reservation as a FlagBit */

#define ADMFLAG_GENERIC				(1<<1)		/**< Convenience macro for Admin_Generic as a FlagBit */

#define ADMFLAG_KICK				(1<<2)		/**< Convenience macro for Admin_Kick as a FlagBit */

#define ADMFLAG_BAN					(1<<3)		/**< Convenience macro for Admin_Ban as a FlagBit */

#define ADMFLAG_UNBAN				(1<<4)		/**< Convenience macro for Admin_Unban as a FlagBit */

#define ADMFLAG_SLAY				(1<<5)		/**< Convenience macro for Admin_Slay as a FlagBit */

#define ADMFLAG_CHANGEMAP			(1<<6)		/**< Convenience macro for Admin_Changemap as a FlagBit */

#define ADMFLAG_CONVARS				(1<<7)		/**< Convenience macro for Admin_Convars as a FlagBit */

#define ADMFLAG_CONFIG				(1<<8)		/**< Convenience macro for Admin_Config as a FlagBit */

#define ADMFLAG_CHAT				(1<<9)		/**< Convenience macro for Admin_Chat as a FlagBit */

#define ADMFLAG_VOTE				(1<<10)		/**< Convenience macro for Admin_Vote as a FlagBit */

#define ADMFLAG_PASSWORD			(1<<11)		/**< Convenience macro for Admin_Password as a FlagBit */

#define ADMFLAG_RCON				(1<<12)		/**< Convenience macro for Admin_RCON as a FlagBit */

#define ADMFLAG_CHEATS				(1<<13)		/**< Convenience macro for Admin_Cheats as a FlagBit */

#define ADMFLAG_ROOT				(1<<14)		/**< Convenience macro for Admin_Root as a FlagBit */

#define ADMFLAG_CUSTOM1				(1<<15)		/**< Convenience macro for Admin_Custom1 as a FlagBit */

#define ADMFLAG_CUSTOM2				(1<<16)		/**< Convenience macro for Admin_Custom2 as a FlagBit */

#define ADMFLAG_CUSTOM3				(1<<17)		/**< Convenience macro for Admin_Custom3 as a FlagBit */

#define ADMFLAG_CUSTOM4				(1<<18)		/**< Convenience macro for Admin_Custom4 as a FlagBit */

#define ADMFLAG_CUSTOM5				(1<<19)		/**< Convenience macro for Admin_Custom5 as a FlagBit */

#define ADMFLAG_CUSTOM6				(1<<20)		/**< Convenience macro for Admin_Custom6 as a FlagBit */

/**

 * @endsection

 */

/**

 * @section Hardcoded authentication methods 

 */

#define AUTHMETHOD_STEAM			"steam"		/**< SteamID based authentication */

#define AUTHMETHOD_IP				"ip"		/**< IP based authentication */

#define AUTHMETHOD_NAME				"name"		/**< Name based authentication */

/**

 * @endsection

 */

/**

 * Access override types.

 */

enum OverrideType

{

	Override_Command = 1,	/**< Command */

	Override_CommandGroup,	/**< Command group */

};

/**

 * Access override rules.

 */

enum OverrideRule

{

	Command_Deny = 0,

	Command_Allow = 1,

};

/**

 * DEPRECATED, do not use.

 */

enum ImmunityType

{

	Immunity_Default = 1,	/**< Deprecated. */

	Immunity_Global,		/**< Deprecated. */

};

/** 

 * Identifies a unique entry in the group permissions cache.  These are not Handles.

 */

enum GroupId

{

	INVALID_GROUP_ID = -1,	/**< An invalid/nonexistant group */

};

/** 

 * Identifies a unique entry in the admin permissions cache.  These are not Handles.

 */

enum AdminId

{

	INVALID_ADMIN_ID = -1,	/**< An invalid/nonexistant admin */

};

/**

 * Methods of computing access permissions.

 */

enum AdmAccessMode

{

	Access_Real,		/**< Access the user has inherently */

	Access_Effective,	/**< Access the user has from their groups */

};

/**

 * Represents the various cache regions.

 */

enum AdminCachePart

{

	AdminCache_Overrides = 0,		/**< Global overrides */

	AdminCache_Groups = 1,			/**< All groups (automatically invalidates admins too) */

	AdminCache_Admins = 2,			/**< All admins */

};

/**

 * Called when part of the cache which needs to be rebuilt.

 *

 * @param part			Part of the admin cache to rebuild.

 */

forward OnRebuildAdminCache(AdminCachePart:part);

/**

 * Tells the admin system to dump a portion of the cache.

 *

 * @param part			Part of the cache to dump.  Specifying groups also dumps admins.

 * @param rebuild		If true, the rebuild forwards will fire.

 * @noreturn

 */

native DumpAdminCache(AdminCachePart:part, bool:rebuild);

/**

 * Adds a global command flag override.  Any command registered with this name

 * will assume the new flag.  This is applied retroactively as well.

 *

 * @param cmd			String containing command name (case sensitive).

 * @param type			Override type (specific command or group).

 * @param flags			New admin flag.

 * @noreturn

 */

native AddCommandOverride(const String:cmd[], OverrideType:type, flags);

/**

 * Returns a command override.

 *

 * @param cmd			String containing command name (case sensitive).

 * @param type			Override type (specific command or group).

 * @param flags			By-reference cell to store the flag (undefined if not found).

 * @return				True if there is an override, false otherwise.

 */

native bool:GetCommandOverride(const String:cmd[], OverrideType:type, &flags);

/**

 * Unsets a command override.

 *

 * @param cmd			String containing command name (case sensitive).

 * @param type			Override type (specific command or group).

 * @noreturn

 */

native UnsetCommandOverride(const String:cmd[], OverrideType:type);

/**

 * Adds a new group.  Name must be unique.

 *

 * @param group_name	String containing the group name.

 * @return				A new group id, INVALID_GROUP_ID if it already exists.

 */

native GroupId:CreateAdmGroup(const String:group_name[]);

/**

 * Finds a group by name.

 *

 * @param group_name	String containing the group name.

 * @return				A group id, or INVALID_GROUP_ID if not found.

 */

native GroupId:FindAdmGroup(const String:group_name[]);

/**

 * Adds or removes a flag from a group's flag set.

 * @note These are called "add flags" because they add to a user's flags.

 *

 * @param id			Group id.

 * @param flag			Admin flag to toggle.

 * @param enabled		True to set the flag, false to unset/disable.

 * @noreturn

 */

native SetAdmGroupAddFlag(GroupId:id, AdminFlag:flag, bool:enabled);

/**

 * Gets the set value of an add flag on a group's flag set.

 * @note These are called "add flags" because they add to a user's flags.

 *

 * @param id			Group id.

 * @param flag			Admin flag to retrieve.

 * @return				True if enabled, false otherwise,

 */

native bool:GetAdmGroupAddFlag(GroupId:id, AdminFlag:flag);

/**

 * Returns the flag set that is added to a user from their group.

 * @note These are called "add flags" because they add to a user's flags.

 *

 * @param id			GroupId of the group.

 * @return				Bitstring containing the flags enabled.

 */

native GetAdmGroupAddFlags(GroupId:id);

/**

 * @deprecated			Functionality removed.

 */

#pragma deprecated Use SetAdmGroupImmunityLevel() instead.

native SetAdmGroupImmunity(GroupId:id, ImmunityType:type, bool:enabled);

/**

 * @deprecated			Functionality removed.

 */

#pragma deprecated Use GetAdmGroupImmunityLevel() instead.

native bool:GetAdmGroupImmunity(GroupId:id, ImmunityType:type);

/**

 * Adds immunity to a specific group.

 *

 * @param id			Group id.

 * @param other_id		Group id to receive immunity to.

 * @noreturn

 */

native SetAdmGroupImmuneFrom(GroupId:id, GroupId:other_id);

/**

 * Returns the number of specific group immunities.

 *

 * @param id			Group id.

 * @return				Number of group immunities.

 */

native GetAdmGroupImmuneCount(GroupId:id);

/**

 * Returns a group that this group is immune to given an index.

 *

 * @param id			Group id.

 * @param number		Index from 0 to N-1, from GetAdmGroupImmuneCount().

 * @return				GroupId that this group is immune to, or INVALID_GROUP_ID on failure.

 */

native GroupId:GetAdmGroupImmuneFrom(GroupId:id, number); 

/**

 * Adds a group-specific override type.

 *

 * @param id			Group id.

 * @param name			String containing command name (case sensitive).

 * @param type			Override type (specific command or group).

 * @param rule			Override allow/deny setting.

 * @noreturn

 */

native AddAdmGroupCmdOverride(GroupId:id, const String:name[], OverrideType:type, OverrideRule:rule);

/**

 * Retrieves a group-specific command override.

 *

 * @param id			Group id.

 * @param name			String containing command name (case sensitive).

 * @param type			Override type (specific command or group).

 * @param rule			Optional pointer to store allow/deny setting.

 * @return				True if an override exists, false otherwise.

 */

native bool:GetAdmGroupCmdOverride(GroupId:id, const String:name[], OverrideType:type, &OverrideRule:rule);

/**

 * Registers an authentication identity type.  You normally never need to call this except for 

 * very specific systems.

 *

 * @param codename		Codename to use for your authentication type.

 * @noreturn

 */

native RegisterAuthIdentType(const String:name[]);

/**

 * Creates a new admin entry in the permissions cache.

 *

 * @param name			Name for this entry (does not have to be unique).

 * 						Specify an empty string for an anonymous admin.

 */

native AdminId:CreateAdmin(const String:name[]="");

/**

 * Retrieves an admin's user name as made with CreateAdmin().

 *

 * @note This function can return UTF-8 strings, and will safely chop UTF-8 strings.

 *

 * @param id			AdminId of the admin.

 * @param name			String buffer to store name.

 * @param maxlength		Maximum size of string buffer.

 * @return				Number of bytes written.

 */

native GetAdminUsername(AdminId:id, const String:name[], maxlength);

/**

 * Binds an admin to an identity for fast lookup later on.  The bind must be unique.

 *

 * @param id			AdminId of the admin.

 * @param auth			Auth method to use, predefined or from RegisterAuthIdentType().

 * @param ident			String containing the arbitrary, unique identity.

 * @return				True on success, false if the auth method was not found,

 *						or ident was already taken.

 */

native bool:BindAdminIdentity(AdminId:id, const String:auth[], const String:ident[]);

/**

 * Sets whether or not a flag is enabled on an admin.

 *

 * @param id			AdminId index of the admin.

 * @param flag			Admin flag to use.

 * @param enabled		True to enable, false to disable.

 * @noreturn

 */

native SetAdminFlag(AdminId:id, AdminFlag:flag, bool:enabled);

/**

 * Returns whether or not a flag is enabled on an admin.

 *

 * @param id			AdminId index of the admin.

 * @param flag			Admin flag to use.

 * @param mode			Access mode to check.

 * @return				True if enabled, false otherwise.

 */

native bool:GetAdminFlag(AdminId:id, AdminFlag:flag, AdmAccessMode:mode=Access_Effective);

/**

 * Returns the bitstring of access flags on an admin.

 *

 * @param id			AdminId index of the admin.

 * @param mode			Access mode to use.

 * @return				A bitstring containing which flags are enabled.

 */

native GetAdminFlags(AdminId:id, AdmAccessMode:mode);

/**

 * Adds a group to an admin's inherited group list.  Any flags the group has 

 * will be added to the admin's effective flags.

 *

 * @param id			AdminId index of the admin.

 * @param gid			GroupId index of the group.

 * @return				True on success, false on invalid input or duplicate membership.

 */

native bool:AdminInheritGroup(AdminId:id, GroupId:gid);

/**

 * Returns the number of groups this admin is a member of.

 * 

 * @param id			AdminId index of the admin.

 * @return				Number of groups this admin is a member of.

 */

native GetAdminGroupCount(AdminId:id);

/**

 * Returns group information from an admin.

 *

 * @param id        	AdminId index of the admin.

 * @param index			Group number to retrieve, from 0 to N-1, where N

 *						is the value of GetAdminGroupCount(id).

 * @param name			Buffer to store the group's name.

 *						Note: This will safely chop UTF-8 strings.

 * @param maxlength		Maximum size of the output name buffer.

 * @return				A GroupId index and a name pointer, or

 *						INVALID_GROUP_ID and NULL if an error occurred.

*/

native GroupId:GetAdminGroup(AdminId:id, index, const String:name[], maxlength);

/**

 * Sets a password on an admin.

 *

 * @param id			AdminId index of the admin.

 * @param passwd		String containing the password.

 * @noreturn

 */

native SetAdminPassword(AdminId:id, const String:password[]);

/**

 * Gets an admin's password.

 *

 * @param id			AdminId index of the admin.

 * @param name			Optional buffer to store the admin's password.

 * @param maxlength		Maximum size of the output name buffer.

 *						Note: This will safely chop UTF-8 strings.

 * @return				True if there was a password set, false otherwise.

 */

native bool:GetAdminPassword(AdminId:id, const String:buffer[]="", maxlength=0);

/**

 * Attempts to find an admin by an auth method and an identity.

 *

 * @param auth			Auth method to try.

 * @param identity		Identity string to look up.

 * @return				An AdminId index if found, INVALID_ADMIN_ID otherwise.

 */

native AdminId:FindAdminByIdentity(const String:auth[], const String:identity[]);

/**

 * Removes an admin entry from the cache.

 *

 * @note This will remove any bindings to a specific user.

 *

 * @param id			AdminId index to remove/invalidate.

 * @return				True on success, false otherwise.

 */

native bool:RemoveAdmin(AdminId:id);

/**

 * Converts a flag bit string to a bit array.

 *

 * @param bits			Bit string containing the flags.

 * @param array			Array to write the flags to.  Enabled flags will be 'true'.

 * @param maxSize		Maximum number of flags the array can store.

 * @return				Number of flags written.

 */

native FlagBitsToBitArray(bits, bool:array[], maxSize);

/**

 * Converts a flag array to a bit string.

 *

 * @param array			Array containing true or false for each AdminFlag.

 * @param maxSize		Maximum size of the flag array.

 * @return				A bit string composed of the array bits.

 */

native FlagBitArrayToBits(const bool:array[], maxSize);

/**

 * Converts an array of flags to bits.

 *

 * @param array			Array containing flags that are enabled.

 * @param numFlags		Number of flags in the array.

 * @return				A bit string composed of the array flags.

 */

native FlagArrayToBits(const AdminFlag:array[], numFlags);

/**

 * Converts a bit string to an array of flags.

 *

 * @param bits			Bit string containing the flags.

 * @param array			Output array to write flags.

 * @param maxSize		Maximum size of the flag array.

 * @return				Number of flags written.

 */

native FlagBitsToArray(bits, AdminFlag:array[], maxSize);

/**

 * Finds a flag by its string name.

 *

 * @param name			Flag name (like "kick"), case sensitive.

 * @param flag			Variable to store flag in.

 * @return				True on success, false if not found.

 */

native bool:FindFlagByName(const String:name[], &AdminFlag:flag);

/**

 * Finds a flag by a given character.

 *

 * @param c				Flag ASCII character/token.

 * @param flag			Variable to store flag in.

 * @return				True on success, false if not found.

 */

native bool:FindFlagByChar(c, &AdminFlag:flag);

/**

 * Converts a string of flag characters to a bit string.

 *

 * @param flags			Flag ASCII string.

 * @param numchars		Optional variable to store the number of bytes read.

 * @return				Bit string of ADMFLAG values.

 */

native ReadFlagString(const String:flags[], &numchars=0);

/**

 * Tests whether one admin can target another.

 *

 * The hueristics for this check are as follows:

 * 0. If the targeting AdminId is INVALID_ADMIN_ID, targeting fails.

 * 1. If the targeted AdminId is INVALID_ADMIN_ID, targeting succeeds.

 * 2. If the targeted AdminId is the same as the targeting AdminId,

 *    (self) targeting succeeds.

 * 3. If the targeting admin is root, targeting succeeds.

 * 4. If the targeted admin has access higher (as interpreted by 

 *    (sm_immunity_mode) than the targeting admin, then targeting fails.

 * 5. If the targeted admin has specific immunity from the

 *    targeting admin via group immunities, targeting fails.

 * 6. Targeting succeeds.

 *

 * @param admin			Admin doing the targetting (may be INVALID_ADMIN_ID).

 * @param target		Target admin (may be INVALID_ADMIN_ID).

 * @return				True if targetable, false if immune.

 */

native CanAdminTarget(AdminId:admin, AdminId:target);

/**

 * Creates an admin auth method.  This does not need to be called more than once

 * per method, ever.

 *

 * @param method		Name of the authentication method.

 * @return				True on success, false on failure.

 */

native bool:CreateAuthMethod(const String:method[]);

/**

 * Sets a group's immunity level.

 *

 * @param gid			Group Id.

 * @param level			Immunity level value.

 * @return				Old immunity level value.

 */

native SetAdmGroupImmunityLevel(GroupId:gid, level);

/**

 * Gets a group's immunity level (defaults to 0).

 *

 * @param gid			Group Id.

 * @return				Immunity level value.

 */

native GetAdmGroupImmunityLevel(GroupId:gid);

/**

 * Sets an admin's immunity level.

 *

 * @param id			Admin Id.

 * @param level			Immunity level value.

 * @return				Old immunity level value.

 */

native SetAdminImmunityLevel(AdminId:id, level);

/**

 * Gets an admin's immunity level.

 *

 * @param id			Admin Id.

 * @return				Immunity level value.

 */

native GetAdminImmunityLevel(AdminId:id);

/**

 * Converts a flag to its single bit.

 * 

 * @param flag			Flag to convert.

 * @return				Bit representation of the flag.

 */

stock FlagToBit(AdminFlag:flag)

{

	return (1<<_:flag);

}

/**

 * Converts a bit to an AdminFlag.

 *

 * @param bit			Bit to convert.

 * @param flag			Stores the converted flag by reference.

 * @return				True on success, false otherwise.

 */

stock bool:BitToFlag(bit, &AdminFlag:flag)

{

	new AdminFlag:array[1];

	if (FlagBitsToArray(bit, array, 1))

	{

		flag = array[0];

		return true;

	}

	return false;

}