<?php
/***************************************************************************  
 *                               functions.php
 *                            -------------------                         
 *   begin                : Saturday, Feb 13, 2001 
 *   copyright            : (C) 2001 The phpBB Group        
 *   email                : support@phpbb.com                           
 *                                                          
 *   $Id$
 *                                                            
 * 
 ***************************************************************************/ 


/***************************************************************************  
 *                                                     
 *   This program is free software; you can redistribute it and/or modify    
 *   it under the terms of the GNU General Public License as published by   
 *   the Free Software Foundation; either version 2 of the License, or  
 *   (at your option) any later version.                      
 *                                                          
 * 
 ***************************************************************************/ 

function get_db_stat($db, $mode) 
{
	switch($mode){
		case 'postcount':
			$sql = 'SELECT count(*) AS total FROM '.POSTS_TABLE;
		break;

		case 'usercount':
			$sql = 'SELECT count(*) AS total 
						FROM '. USERS_TABLE .' 
						WHERE user_id != '.ANONYMOUS.'
						AND user_level != '.DELETED;
		break;

		case 'newestuser':
			$sql = 'SELECT user_id, username
						FROM '.USERS_TABLE.'
						WHERE user_id != ' . ANONYMOUS. '
						AND user_level != '. DELETED .'
						ORDER BY user_id DESC LIMIT 1';
		break;
	}

	
	if(!$result = $db->sql_query($sql))
	{
		return 'ERROR';
	}
	else
	{
		$row = $db->sql_fetchrow($result);
		if($mode == 'newestuser')
		{
			return($row);
		}
		else
		{
			return($row['total']);
		}
	}
}


function make_jumpbox($db)
{
	$sql = 'SELECT cat_id, cat_title FROM '.CATEGORIES_TABLE.' ORDER BY cat_order';
	
	$boxstring = '';
	if($result = $db->sql_query($sql))
	{
		if($total_cats = $db->sql_numrows($result))
		{
			$cat_rows = $db->sql_fetchrowset($result);
			for($x = 0; $x < $total_cats; $x++)
			{
				$boxstring .= "<option value=\"-1\">&nbsp;</option>\n";
				$boxstring .= "<option value=\"-1\">".stripslashes($cat_rows[$x]["cat_title"])."</OPTION>\n";
				$boxstring .= "<option value=\"-1\">----------------</OPTION>\n";

				$f_sql = "SELECT forum_name, forum_id FROM ".FORUMS_TABLE."
					WHERE cat_id = ". $cat_rows[$x]["cat_id"] . " ORDER BY forum_id";
				
				if($f_result = $db->sql_query($f_sql))
				{
					if($total_forums = $db->sql_numrows($f_result)) 
					{
						$f_rows = $db->sql_fetchrowset($f_result);
						
						for($y = 0; $y < $total_forums; $y++)
						{
							$name = stripslashes($f_rows[$y]["forum_name"]);
							$boxstring .=  "<option value=\"".$f_rows[$y]["forum_id"]."\">$name</OPTION>\n";
						}
					}
				}
				else 
				{
					$boxstring .= "<option value=\"-1\">Error!</option>\n";
				}

			}
		}
		else
		{
			$boxstring .= "<option value=\"-1\">No Forums to Jump to</option>\n";
		}
	}
	else
	{
		$boxstring .= "<option value=\"-1\">Cat Error</option>\n";
	}

	return($boxstring);
}

function language_select($default, $name="language", $dirname="language/")
{
	global $phpEx;
	$dir = opendir($dirname);
	$lang_select = "<select name=\"$name\">\n";
	while ($file = readdir($dir)) 
	{
		if (ereg("^lang_", $file)) 
		{
			$file = str_replace("lang_", "", $file);
			$file = str_replace(".$phpEx", "", $file);
			$file == $default ? $selected = " SELECTED" : $selected = "";
			$lang_select .= "  <option$selected>$file\n";
		}
	}
	$lang_select .= "</select>\n";
	closedir($dir);
	return $lang_select;
}

function theme_select($default, $db)
{
	$sql = "SELECT theme_id, theme_name FROM ".THEMES_TABLE." ORDER BY theme_name";
	if($result = $db->sql_query($sql))
	{
		$num = $db->sql_numrows($result);
		$rowset = $db->sql_fetchrowset($result);
		$theme_select = "<select name=\"theme\">\n";
		for($i = 0; $i < $num; $i++)
		{
			if((stripslashes($rowset[$i]["theme_name"]) == $default) || ($rowset[$i]["theme_id"] == $default))
			{
				$selected = " SELECTED";
			}
			else
			{
				$selected = "";
			}
			$theme_select .= "\t<option value=\"".$rowset[$i]["theme_id"]."\"$selected>".stripslashes($rowset[$i]["theme_name"])."</option>\n";
		}
		$theme_select .= "</select>\n";
	}
	else
	{
		$theme_select = "<select name=\"theme\"><option value=\"-1\">Error in theme_select</option></select>";
	}
	return($theme_select);
}

function tz_select($default)
{
	global $board_tz;
	if(!isset($default))
	{
		$default == $board_tz;
	}
	$tz_select = "<select name=\"timezone\">";
	$tz_array = array(
			"-12" => "(GMT -12:00 hours) Eniwetok, Kwajalein",
			"-11" => "(GMT -11:00 hours) Midway Island, Samoa",
			"-10" => "(GMT -10:00 hours) Hawaii",
			"-9" => "(GMT -9:00 hours) Alaska",
			"-8" => "(GMT -8:00 hours) Pacific Time (US & Canada)",
			"-7" => "(GMT -7:00 hours) Mountain Time (US & Canada)",
			"-6" => "(GMT -6:00 hours) Central Time (US & Canada), Mexico City",
			"-5" => "(GMT -5:00 hours) Eastern Time (US & Canada), Bogota, Lima, Quito",
			"-4" => "(GMT -4:00 hours) Atlantic Time (Canada), Caracas, La Paz",
			"-3.5" => "(GMT -3:30 hours) Newfoundland",
			"-3" => "(GMT -3:00 hours) Brazil, Buenos Aires, Georgetown",
			"-2" => "(GMT -2:00 hours) Mid-Atlantic",
			"-1" => "(GMT -1:00 hours) Azores, Cape Verde Islands",
			"0"  => "(GMT) Western Europe Time, London, Lisbon, Casablanca, Monrovia",
			"+1" => "(GMT +1:00 hours) CET(Central Europe Time), Brussels, Copenhagen, Madrid, Paris",
			"+2" => "(GMT +2:00 hours) EET(Eastern Europe Time), Kaliningrad, South Africa",
			"+3" => "(GMT +3:00 hours) Baghdad, Kuwait, Riyadh, Moscow, St. Petersburg, Volgograd, Nairobi",
			"+3.5" => "(GMT +3:30 hours) Tehran",
			"+4" => "(GMT +4:00 hours) Abu Dhabi, Muscat, Baku, Tbilisi",
			"+4.5" => "(GMT +4:30 hours) Kabul",
			"+5" => "(GMT +5:00 hours) Ekaterinburg, Islamabad, Karachi, Tashkent",
			"+5.5" => "(GMT +5:30 hours) Bombay, Calcutta, Madras, New Delhi",
			"+6" => "(GMT +6:00 hours) Almaty, Dhaka, Colombo",
			"+7" => "(GMT +7:00 hours) Bangkok, Hanoi, Jakarta",
			"+8" => "(GMT +8:00 hours) Beijing, Perth, Singapore, Hong Kong, Chongqing, Urumqi, Taipei",
			"+9" => "(GMT +9:00 hours) Tokyo, Seoul, Osaka, Sapporo, Yakutsk",
			"+9.5" => "(GMT +9:30 hours) Adelaide, Darwin",
			"+10" => "(GMT +10:00 hours) EAST(East Australian Standard), Guam, Papua New Guinea, Vladivostok",
			"+11" => "(GMT +11:00 hours) Magadan, Solomon Islands, New Caledonia",
			"+12" => "(GMT +12:00 hours) Auckland, Wellington, Fiji, Kamchatka, Marshall Island");
	
	while(list($offset, $zone) = each($tz_array))
	{
		if($offset == $default)
		{
			$selected = " SELECTED";
		}
		else
		{
			$selected = "";
		}
		$tz_select .= "\t<option value=\"$offset\"$selected>$zone</option>\n";
	}
	$tz_select .= "</select>\n";
	return($tz_select);
}

function validate_username(&$username, $db)
{
	$username = trim($username);
	$username = strip_tags($username);
	$username = htmlspecialchars($username);
	if(empty($username))
	{
		return(FALSE);
	}
	
	$valid_name = TRUE;
	$sql = "SELECT LOWER(username) FROM ".USERS_TABLE." WHERE username = '$username'";
	if($result = $db->sql_query($sql))
	{
		if( ($numrows = $db->sql_numrows($result) ) > 0)
		{
			$valid_name = FALSE;
		}
	}
	
	$sql = "SELECT disallow_username FROM ".DISALLOW_TABLE." WHERE disallow_username = '$username'";
	if($result = $db->sql_query($sql))
	{
		if(($numrows = $db->sql_numrows($result)) > 0)
		{
			$valid_name = FALSE;
		}
	}
	
	return($valid_name);
}
function generate_activation_key()
{
	$chars = array( 
		  "a","A","b","B","c","C","d","D","e","E","f","F","g","G","h","H","i","I","j","J",
		  "k","K","l","L","m","M","n","N","o","O","p","P","q","Q","r","R","s","S","t","T",
		  "u","U","v","V","w","W","x","X","y","Y","z","Z","1","2","3","4","5","6","7","8",
		  "9","0"
		  );
   $max_elements = count($chars) - 1;
   srand((double)microtime()*1000000);
   $act_key = $chars[rand(0,$max_elements)];
   $act_key .= $chars[rand(0,$max_elements)];
   $act_key .= $chars[rand(0,$max_elements)];  
   $act_key .= $chars[rand(0,$max_elements)]; 
   $act_key .= $chars[rand(0,$max_elements)]; 
   $act_key .= $chars[rand(0,$max_elements)]; 
   $act_key .= $chars[rand(0,$max_elements)]; 
   $act_key .= $chars[rand(0,$max_elements)];
   $act_key_md = md5($act_key);
   
   return($act_key_md);
}
?>