/**

 * vim: set ts=4 :

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

 * SourceMod Admin File Reader Plugin

 * Reads the admins.cfg file.  Do not compile this directly.

 *

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

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

 *

 * 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: $Id$

 */

#define USER_STATE_NONE			0

#define USER_STATE_ADMINS		1

#define USER_STATE_INADMIN		2

static Handle:g_hUserParser = INVALID_HANDLE;

static g_UserState = USER_STATE_NONE;

static String:g_CurAuth[64];

static String:g_CurIdent[64];

static String:g_CurName[64];

static String:g_CurPass[64];

static Handle:g_GroupArray;

static g_CurFlags;

static g_CurImmunity;

public SMCResult:ReadUsers_NewSection(Handle:smc, const String:name[], bool:opt_quotes)

{

	if (g_IgnoreLevel)

	{

		g_IgnoreLevel++;

		return SMCParse_Continue;

	}

	if (g_UserState == USER_STATE_NONE)

	{

		if (StrEqual(name, "Admins"))

		{

			g_UserState = USER_STATE_ADMINS;

		}

		else

		{

			g_IgnoreLevel++;

		}

	}

	else if (g_UserState == USER_STATE_ADMINS)

	{

		g_UserState = USER_STATE_INADMIN;

		strcopy(g_CurName, sizeof(g_CurName), name);

		g_CurAuth[0] = '\0';

		g_CurIdent[0] = '\0';

		g_CurPass[0] = '\0';

		ClearArray(g_GroupArray);

		g_CurFlags = 0;

		g_CurImmunity = 0;

	}

	else

	{

		g_IgnoreLevel++;

	}

	return SMCParse_Continue;

}

public SMCResult:ReadUsers_KeyValue(Handle:smc, 

									const String:key[], 

									const String:value[], 

									bool:key_quotes, 

									bool:value_quotes)

{

	if (g_UserState != USER_STATE_INADMIN || g_IgnoreLevel)

	{

		return SMCParse_Continue;

	}

	if (StrEqual(key, "auth"))

	{

		strcopy(g_CurAuth, sizeof(g_CurAuth), value);

	}

	else if (StrEqual(key, "identity"))

	{

		strcopy(g_CurIdent, sizeof(g_CurIdent), value);

	}

	else if (StrEqual(key, "password")) 

	{

		strcopy(g_CurPass, sizeof(g_CurPass), value);

	} 

	else if (StrEqual(key, "group")) 

	{

		new GroupId:id = FindAdmGroup(value);

		if (id == INVALID_GROUP_ID)

		{

			ParseError("Unknown group \"%s\"", value);

		}

		PushArrayCell(g_GroupArray, id);

	} 

	else if (StrEqual(key, "flags")) 

	{

		new len = strlen(value);

		new AdminFlag:flag;

		for (new i = 0; i < len; i++)

		{

			if (!FindFlagByChar(value[i], flag))

			{

				ParseError("Invalid flag detected: %c", value[i]);

			}

			else

			{

				g_CurFlags |= FlagToBit(flag);

			}

		}

	} 

	else if (StrEqual(key, "immunity")) 

	{

		g_CurImmunity = StringToInt(value);

	}

	return SMCParse_Continue;

}

public SMCResult:ReadUsers_EndSection(Handle:smc)

{

	if (g_IgnoreLevel)

	{

		g_IgnoreLevel--;

		return SMCParse_Continue;

	}

	if (g_UserState == USER_STATE_INADMIN)

	{

		/* Dump this user to memory */

		if (g_CurIdent[0] != '\0' && g_CurAuth[0] != '\0')

		{

			decl AdminFlag:flags[26];

			new AdminId:id, i, num_groups, num_flags;

			if ((id = FindAdminByIdentity(g_CurAuth, g_CurIdent)) == INVALID_ADMIN_ID)

			{

				id = CreateAdmin(g_CurName);

				if (!BindAdminIdentity(id, g_CurAuth, g_CurIdent))

				{

					ParseError("Failed to bind auth \"%s\" to identity \"%s\"", g_CurAuth, g_CurIdent);

				}

			}

			num_groups = GetArraySize(g_GroupArray);

			for (i = 0; i < num_groups; i++)

			{

				AdminInheritGroup(id, GetArrayCell(g_GroupArray, i));

			}

			SetAdminPassword(id, g_CurPass);

			if (GetAdminImmunityLevel(id) < g_CurImmunity)

			{

				SetAdminImmunityLevel(id, g_CurImmunity);

			}

			num_flags = FlagBitsToArray(g_CurFlags, flags, sizeof(flags));

			for (i = 0; i < num_flags; i++)

			{

				SetAdminFlag(id, flags[i], true);

			}

		}

		else

		{

			ParseError("Failed to create admin: did you forget either the auth or identity properties?");

		}

		g_UserState = USER_STATE_ADMINS;

	}

	else if (g_UserState == USER_STATE_ADMINS)

	{

		g_UserState = USER_STATE_NONE;

	}

	return SMCParse_Continue;

}

public SMCResult:ReadUsers_CurrentLine(Handle:smc, const String:line[], lineno)

{

	g_CurrentLine = lineno;

	return SMCParse_Continue;

}

static InitializeUserParser()

{

	if (g_hUserParser == INVALID_HANDLE)

	{

		g_hUserParser = SMC_CreateParser();

		SMC_SetReaders(g_hUserParser,

					   ReadUsers_NewSection,

					   ReadUsers_KeyValue,

					   ReadUsers_EndSection);

		SMC_SetRawLine(g_hUserParser, ReadUsers_CurrentLine);

		g_GroupArray = CreateArray();

	}

}

ReadUsers()

{

	InitializeUserParser();

	BuildPath(Path_SM, g_Filename, sizeof(g_Filename), "configs/admins.cfg");

	/* Set states */

	InitGlobalStates();

	g_UserState = USER_STATE_NONE;

	new SMCError:err = SMC_ParseFile(g_hUserParser, g_Filename);

	if (err != SMCError_Okay)

	{

		decl String:buffer[64];

		if (SMC_GetErrorString(err, buffer, sizeof(buffer)))

		{

			ParseError("%s", buffer);

		}

		else

		{

			ParseError("Fatal parse error");

		}

	}

}