/*============================================================
09/05/2006
A list of functions that I've created over a period of time
This will probably grow as I need and will keep this
upto date
============================================================*/
<?php

class MyFactory {

	public static function factory($Type) {

		if(include_once "".$Type.".php") {
			$classname="".$Type;
			return new $classname;
		} else {
			throw new Exception("Class not found");
		}
	}
}

class Functions  {

      /*================================================================================
	Sending an email
      ================================================================================*/
	public function SendEmail($To,$From,$Subject,$Body,$Type=0) {
		
            //$Type [0=HTML / 1=Plain]
            $tmpMess="";
            if($To=="") {
                    $tmpMess="<li>Please enter a To address</li>";
            }
            if($From=="") {
                    $tmpMess="<li>Please enter a From address</li>";
            }
            if($Subject=="") {
                    $tmpMess="<li>Please enter a subject</li>";
            }
            if($Body=="") {
                    $tmpMess="<li>Please enter a body</li>";
            }
            $Body=str_replace("\r\n","<br/>",$Body);
            
            //Send the email
            $headers="";
            if($Type==0) {
                    $headers.= 'MIME-Version: 1.0' . "\r\n";
                    $headers.= 'Content-type: text/html; charset=is0-8859-1' . "\r\n";
            }
            $headers.= 'From: From: ' . $From . "\r\n";
            mail($To, $Subject, $Body, $headers) or die("Failed to send your email");
	}

    /*================================================================================
	SQL Values
      ================================================================================*/
	public function SQLValue($sValue,$iType) {
            if(!empty($iType)) {
                if($sValue==='') {
                    $sValue=NULL;
                }
                switch($iType) {
                    case 1:
                        $sValue="'".$sValue."',";
                        break;
                    case 2:
                        $sValue="'".$sValue."'";
                        break;
                    case 3:
                        $sValue.=",";
                        break;
                }
                return $sValue;
            } else {
                echo "FUNCTION ERROR: SQLValue <br/> Please select a type";
                exit();
            }
	}

      /*================================================================================
	Changes 1 = true / 2 || 0 = false	
      ================================================================================*/
	public function checkBox($sValue) {
		if(!isset($sValue)) {
			return "0";
		}
	}
	
      /*================================================================================
      Changes 1 = true / 2 || 0 = false	
      ================================================================================*/
	public function tf($sValue) {
		if(isset($sValue)) {
			switch($sValue) {
				case 1:	//true
					$sValue='True';
					break;
				case 2 && "0" :	//false
					$sValue='False';
					break;
			}
			return $sValue;
		} else {
			echo 'FUNCTION ERROR: tf<br/> Only pass 1 or 2 not ('.$sValue.')';
			exit();
		}
	}

	/*================================================================================
	Sorts out checkbox by returning a string for checked or not
	================================================================================*/
	public function isChecked($iValue)	{
		if(!isset($iValue)) {
			$this->displayError("ERROR: Function isChecked<br/>No value supplied");
		} else {
			$sRet="";
			switch($iValue) {
				case 1	:
					$sRet="checked=\"checked\"";
					break;
			}
			return $sRet;
		}
	}

      /*================================================================================
      			Date format
      ================================================================================*/
	public function DateFormat($sValue,$iFormat=2) {
		$bGo='false';
		$sMess='';

		if(empty($sValue)) {
			$sMess='Please supply a date value to format (00001)';
		} elseif(!empty($sValue) && $iFormat==4) {
			$sPattern='/(0[1-9]|[12][0-9]|3[01])[\/](0[1-9]|1[012])[\/](19|20)\d\d/';		
			if(preg_match($sPattern,$sValue,$match)) {
				$brk=explode('/',$sValue);
				$PutDate=$brk[2].'-'.$brk[1].'-'.$brk[0];
				$bGo='true';
			} else {
				echo 'FUNCTION ERROR: DateFormat<br/>Not a correct date format - '.$sValue.' - in regular expression (00002)';
				exit();
			}
		} elseif(!empty($sValue) && $iFormat!='') {
			$bGo='true';
		}
		
		if($bGo=='true') {
			switch($iFormat) {
				case 1:
					$sValue=date("d/m/Y", strtotime($sValue));
					break;
				case 2:
					$sValue=date("d/M/Y", strtotime($sValue));
					break;
				case 3:
					$sValue=date("dmY", strtotime($sValue));
					break;
				case 4:
					$sValue=$PutDate;
					break;
				case 5:
					$sValue=date("Y-m-d", strtotime($sValue));
					break;
				case 6:
					$sValue=date("H:m:s", strtotime($sValue));
					break;
				case 7:
					$sValue=date("d/M/Y - H:m:s", strtotime($sValue));
					break;				
				case 99:
					$sValue=date("H:00", strtotime($sValue));
					break;
			}
			return $sValue;
		} else {
			echo 'FUNCTION ERROR: DateFormat<br/>'.$sMess;
			exit();
		}
	}
      //================================================================================
      //			Get Current User	
      //================================================================================
	public function userID() {
		$arr=explode("\\",$_SERVER['REMOTE_USER']);
		return $arr[1];
	}
	
      //================================================================================
      //			Validation checks
      //================================================================================
	public function isValid($sValue,$iFormat)	{
		if(!isset($sValue) || !isset($iFormat)) {
			$this->displayError("ERROR: function isValid<br/> No value ($sValue) or format ($iFormat) was sent");
		} else {
			switch($iFormat) {
				case 1:		//email
					if(!eregi(_EMAIL_PATTERN, $sValue))
					$this->displayError("ERROR: Email ($sValue) is not valid");
					break;
				case 2:		//tel
					if(!eregi(_TEL_PATTERN,$sValue))
					$this->displayError("ERROR: Telephone ($sValue) is not valid");
					break;
			}
		}
	}

      //================================================================================
      //		Get the left/right number of characters from a string
      //================================================================================
	public function getChar($Text,$iNum,$Type=0) {
		
		if(!isset($Text)) {
			$this->displayError("FUNCTION: getChar<br/> Please supply some text");
		}
		if(!isset($iNum)) {
			$this->displayError("FUNCTION: getChar<br/> Please enter a numerical value");
		}

		$iLen=strlen($Text);

		switch($Type) {
			case 1:
				$Text=substr($Text,0,$iNum);
				break;
			default:
				$Text=substr($Text,$iLen-$iNum,$iNum);
		}
		return $Text;
	}

      //================================================================================
      //			builds an array	
      //================================================================================
	public function accum($Array,$Key) 	{
		if(!array_key_exists($Key,$Array)) 		{
			$Array[$Key]=0;
		}
		$Array[$Key]++;
	}

      //================================================================================
      //	Function to break down returned records into an array
      //================================================================================
	public function createArray($fs) {
		$arr=array();
		if(mssql_num_rows($fs)>0) {
			while($g=mssql_fetch_array($fs)) {
				array_push($arr,$g[0]);
			}
		}
		return $arr;
	}
	
      //================================================================================
      //			Generate a unique code	
      //================================================================================
	public function genCode() {
		$sCode="0123456789abcdef";		
		$rndstring='';
		for ($a = 0; $a <= strlen($sCode); $a++) {
			$b = rand(0, strlen($sCode) - 1);
			$rndstring .= $sCode[$b];
		}
		return $rndstring;
	}
	
      //================================================================================
      //			Page redirect	
      //================================================================================
	public function PageRedirect($iDelay,$sFile,$sMess="") {
		echo($sMess);
		echo("<meta http-equiv='refresh' content='$iDelay;URL=$sFile'>");
	}

      //================================================================================
      //			Create an A-Z link	
      //================================================================================
	public function createAZ($name="",$id="",$href="#") {
	
		$arrLet=explode(",","A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z");
		if($id!="") {$id=" id=\"$name\"";}
		
		//Build an A-Z list
		$sLink="";
		for($i=0;$i<sizeof($arrLet);$i++) {
			$sLink.="<a href=\"$href\" src=\"".$arrLet[$i]."\" name=\"$name$i\" id=\"$id$i\">".$arrLet[$i]."</a>|";
		}
		$sLink.="<a href=\"#\" src=\"\" name=\"dataLink\">ALL</a>";
		return $sLink;
	}

      /*================================================================================
      ================================================================================
      		File / Directory control
      ================================================================================
      ================================================================================*/
      
      //================================================================================
      //		Open a text file and return its contenct	
      //================================================================================
	function openFile($sFileName,$sMethod,$WriteText='') 	{
		if(!empty($sFileName)) 		{
			//echo realpath($sFileName);
			$file=fopen(realpath($sFileName),$sMethod) or die('Failed to open file');
			return fread($file,filesize($sFileName));
		} else {
			echo 'FUNCTION ERROR: openFile<br/> Please supply a file to open';
		}
	}

      //================================================================================
      //			Check if a direcory exists and if not create it	
      //================================================================================
	public function createDir($sdirName,$sCode="0777") 	{
		$sPat="/[^a-zA-Z]{1,}/"; // Used to remove spaces / and _ from the folder names
		$tmpFolder=strtolower(preg_replace($sPat,"",$sdirName));
		
		if(is_dir(_CAM_FOLDER.$tmpFolder)) {
			echo "Folder '$tmpFolder' already exists<br/>";
			echo "Please <a href=\"javascript: history.go(-1)\">go back</a> and try again.";
			exit();
		}
		mkdir(_CAM_FOLDER.$tmpFolder,$sCode);
		return $tmpFolder;
	}

      //================================================================================
      //					Deletes a directory	
      //================================================================================
	public function delDir($sdirName) {
		if(!is_dir(_CAM_FOLDER.$sdirName)) {
			echo "Folder '$sdirName' does not exist exists<br/>";
			echo "Please <a href=\"javascript: history.go(-1)\">go back</a> and try again.";
			exit();
		}
		rmdir(_CAM_FOLDER.$sdirName);
	}

      //================================================================================
      //					Deletes a directory	
      //================================================================================
	function deleteFiles($folder,$wild) { 
		foreach(glob($folder.$wild) as $fn) { 
		//echo $fn;
		unlink($fn); 
		} 
	} 

      //================================================================================
      //	Function to check an email domain is valid, need to make use that the user
      //	EVERYONE has access to cmd.exe and nslookup.exe
      //================================================================================
	public function iisgetmxrr($sHostName, &$aMXHosts, &$aWeights = NULL) {
	   $sNSLookup = shell_exec("nslookup -q=mx $sHostName 192.168.77.20 2>nul");
	   //echo $sNSLookup."<hr/>";
	   preg_match_all("'^.*MX preference = (\d{1,10}), mail exchanger = (.*)$'simU", $sNSLookup, $aMXMatches);
	   
	   if (count($aMXMatches[2]) > 0)  {
		   array_multisort($aMXMatches[1], $aMXMatches[2]);
		   $aMXHosts = $aMXMatches[2];
		   
		   if (!is_null($aWeights)) {
			   $aWeights = $aMXMatches[1];
		   }
			return true;
	   } else {
			return false;
	   }
	}

      //================================================================================
      //					Display error
      //================================================================================
	public function displayError($sMess) {
		$page=$_SERVER["SCRIPT_NAME"];
		echo $sMess."<br/><br/>In page ".$page;
		echo '<hr/>Please <a href="javascript: history.go(-1)">go back</a> and try again';
		exit();
	}
}

?>