/trunk/jfx-private/classes/JFX/Filter.php

<?php
###############   COPYLEFT GPLv3 LICENSE   ###############
##
## JFX Version 0.2.9
## Website Management Software
## www.jfxcms.com
##
## Copyright 2009 GPLv3 - http://www.opensource.org/licenses/gpl-3.0.html
##
## Anthony Gallon
## oi_antz@hotmail.com
##
## Permission is hereby granted to any person having a copy of this software
## to freely use and modify as required so long as the copyright notices
## and branding remain intact.
##
## Full license details available at http://www.jfxcms.com/license
##
###############   COPYLEFT GPLv3 LICENSE   ###############

/**
 * Perform checks to verify a particular data type is of valid format
 * @author Anthony Gallon
 * @package  jfx-core-classes
 */

/**
 * Perform checks to verify a particular data type is of valid format
 * @author Anthony Gallon
 * @package  jfx-core-classes
 */

class JFX_Filter
{
    /**
     * Check whether an email address is a valid format. Uses Halolib.
     *
     * @param string $email
     * @return bool $validFormat
     */
    public static function checkEmail($email){
        $fail = 0;
        return hl_ValEmail($email, $fail);
        //return ereg("^[a-zA-Z0-9_\.\-]+@[a-zA-Z0-9\-]+\.[a-zA-Z0-9\-\.]{2,20}$", $email);
    }


	/**
	 * Checks PHP code to see if it validates.
	 * Accepts: PHP code as string with no <?php ?> brackets
	 * Returns: true if code evaluates, false on error
	 * Sourced from /admin/edituserplugin.php 17 November 2008
     * @param string $code
     * @return bool $validCode
	 */
	public static function checkPHPCode($code){
		$validinfo = true;
		if (strrpos($code, '{') !== FALSE)
		{
			$lastopenbrace = strrpos($code, '{');
			$lastclosebrace = strrpos($code, '}');
			if ($lastopenbrace > $lastclosebrace)
			{
				JFX::addError(lang('invalidcode'));
                JFX::addError(lang('invalidcode_brace_missing'));
				$validinfo = false;
			}
		}
		if ($validinfo)
		{
			srand();
			ob_start();
			if (eval('function testfunction'.rand().'() {'.$code.'}') === FALSE)
			{
				$error[] = JFX::addError(lang('invalidcode'));
                                //catch the error
                                //eval('function testfunction'.rand().'() {'.$code.'}');
                            	$buffer = ob_get_clean();
                                //add error
                                JFX::addError(str_replace(array('(', ')'), '', htmlentities(strip_tags($buffer ), ENT_QUOTES)));
				$validinfo = false;
			}
			else
			{
				ob_get_clean();
			}
		}
		return (bool) $validinfo;
	}





  
    /**
     * Checks if NZ cellphone number is a valid pattern, if so it will return the formatted number.
     *
     * @param string $number
     * @return string or false on error
     */
    public static function formatCellphoneNumber($number){
        // declare valid area codes
        $areacodes = array('027', '021', '029', '025');

        // get digits
        $number = preg_replace('/[^0-9]/', '', $number);

        // strip leading country code
        if(substr($number, 0, 2)=='00') $number = substr($number, 2);
        if(substr($number, 0, 2)=='64') $number = substr($number, 2);

        // ensure proper area code
        if(substr($number, 0, 1)==0) $number = substr($number, 1);
        $number = '0'.$number;

        $number = substr($number, 0, 3).' '.substr($number, 3);
        $arr = explode(' ', $number);

        // check if phone number is valid
        if(count($arr)!=2) return false;
        if(!in_array($arr[0], $areacodes)) return false;
        if(strlen($arr[1])<6 || strlen($arr[1])>8) return false;

        // format the nubmer to ### ### ####
        $arr[1] = substr($arr[1], 0, 3).' '.substr($arr[1], 3);

        $number = implode(' ', $arr);

        // add area code
        $number = '64 '.$number;
        return $number;
    }


    /**
     * Checks if the number is a valid pattern, if so it will return the formatted number.
     *
     * @param string $number
     * @return string or false on error
     */
    public static function formatPhoneNumber($number){
        // declare valid area codes
        $areacodes = array('03', '04', '06', '07', '09');

        // get digits
        $number = preg_replace('/[^0-9]/', '', $number);

        // strip leading country code
        if(substr($number, 0, 2)=='00') $number = substr($number, 2);
        if(substr($number, 0, 2)=='64') $number = substr($number, 2);

        // ensure proper area code
        if(substr($number, 0, 1)==0) $number = substr($number, 1);
        $number = '0'.$number;

        // seperate area code
        if(substr($number, 0, 4)=='0800' || substr($number, 0, 4)=='0508') $number = substr($number, 0, 4).' '.substr($number, 4);
        if(in_array(substr($number, 0, 2), $areacodes)) $number = substr($number, 0, 2).' '.substr($number, 2);

        // check if valid format
        $arr = split(' ', $number);
        if(count($arr)<2) return false;
        if((strlen($arr[0]==2) && strlen($arr[1])<>7) || (strlen($arr[0])==4 && (strlen($arr[1])<6 || strlen($arr[1])>7))) return false;

        // break number into 333 3333 format
        $arr[1] = substr($arr[1], 0, 3).' '.substr($arr[1], 3);
        $number = implode(' ', $arr);

        // add area code
        $number = '64 '.$number;
        return $number;
    }


    /**
     *  Checks if a number is a valid format for a credit card number
     *
     * @param string $number
     * @return bool $validFormat
     */
    public static function formatCreditCardNumber($number){
        // strip non numeric characters
        $number = preg_replace('/[^0-9]/', '', $number);
        if(strlen($number)!=16) return false;
        else return $number;
    }

    /**
     * Transform parts into a string representing a bank account number
     *
     * @param int $bank
     * @param int $branch
     * @param int $acct
     * @param int $suffix
     * @return string or false on error
     */
    public static function formatBankAccountNumber($bank, $branch, $acct, $suffix){
        $bank = preg_replace('/[^0-9]/', '', $bank);
        $branch = preg_replace('/[^0-9]/', '', $branch);
        $acct = preg_replace('/[^0-9]/', '', $acct);
        $suffix = preg_replace('/[^0-9]/', '', $suffix);
        if(strlen($bank)!=2) return false;
        if(strlen($branch)!=4) return false;
        if(strlen($acct)<6 || strlen($bank)>7) return false;
        if(strlen($suffix)< 2 || strlen($suffix) >4) return false;
        return $bank.' '.$branch.' '.$acct.' '.$suffix;
    }

}












 /**********************************************************************
  * Holotech Function Library
  * Copyright (c) 2000 - 2006 All rights reserved.
  *
  * This is free software, in the sense of "free beer" *and* "free
  * speech"! How cool is that? It costs nothing, and you may use and
  * modify it as desired. You may redistribute it freely, so long as it
  * is unmodified and has the documentation file attached.
  *
         ## --> See /classes/JFX/Filter/Halolib.txt <-- ##
  *
  * Questions, comments, praise, criticism and beer are welcome.
  * Email hololib@holotech.net
  *
  * This library requires PHP4
  *
  **********************************************************************/

     /*
  * Validate an email address
  *   $Addr    = The address to check
  *   $Level   = The level of checking to perform
  *   $Fail    = The level at which the validation failed
  *   $Timeout = Optional timeout for mail server response
  */
  function hl_ValEmail($Addr, &$Fail, $Level = 2, $Timeout = 3) {

    // Valid Top-Level Domains
    $gTLDs = "com:net:org:edu:gov:mil:int:arpa:aero:biz:coop:info:museum:name:";
    $CCs   =
      "ad:ae:af:ag:ai:al:am:an:ao:aq:ar:as:at:au:aw:az:ba:bb:bd:be:bf:bg:bh:".
      "bi:bj:bm:bn:bo:br:bs:bt:bv:bw:by:bz:ca:cc:cf:cd:cg:ch:ci:ck:cl:cm:cn:".
      "co:cr:cs:cu:cv:cx:cy:cz:de:dj:dk:dm:do:dz:ec:ee:eg:eh:er:es:et:fi:fj:".
      "fk:fm:fo:fr:fx:ga:gb:gd:ge:gf:gh:gi:gl:gm:gn:gp:gq:gr:gs:gt:gu:gw:gy:".
      "hk:hm:hn:hr:ht:hu:id:ie:il:in:io:iq:ir:is:it:jm:jo:jp:ke:kg:kh:ki:km:".
      "kn:kp:kr:kw:ky:kz:la:lb:lc:li:lk:lr:ls:lt:lu:lv:ly:ma:mc:md:mg:mh:mk:".
      "ml:mm:mn:mo:mp:mq:mr:ms:mt:mu:mv:mw:mx:my:mz:na:nc:ne:nf:ng:ni:nl:no:".
      "np:nr:nt:nu:nz:om:pa:pe:pf:pg:ph:pk:pl:pm:pn:pr:pt:pw:py:qa:re:ro:ru:".
      "rw:sa:sb:sc:sd:se:sg:sh:si:sj:sk:sl:sm:sn:so:sr:st:su:sv:sy:sz:tc:td:".
      "tf:tg:th:tj:tk:tm:tn:to:tp:tr:tt:tv:tw:tz:ua:ug:uk:um:us:uy:uz:va:vc:".
      "ve:vg:vi:vn:vu:wf:ws:ye:yt:yu:za:zm:zr:zw:";

    $cTLDs =
      "com:net:org:edu:gov:mil:co:ne:or:ed:go:mi:aero:biz:coop:info:museum:name:";

    $Fail = 0;
    $Addr = trim(strtolower($Addr));

    if (ereg(' ', $Addr)) $Fail = 1;

    $UD = explode('@', $Addr);
    if (sizeof($UD) != 2 || !$UD[0]) $Fail = 1;

    $Levels = explode('.', $UD[1]); $sLevels = sizeof($Levels);
    if (!$Levels[0] || !$Levels[1]) $Fail = 1;

    $tld = $Levels[$sLevels-1];
    $tld = ereg_replace('[>)}]$|]$', '', $tld);
    if (strlen($tld) < 2
    || (strlen($tld) > 3 && !ereg(":$tld:", ':arpa:aero:coop:info:museum:name:'))) $Fail = 1;

    $Level--;

    if ($Level && !$Fail) {
      $Level--;
      if (!ereg($tld.':', $gTLDs) && !ereg($tld.':', $CCs)) $Fail = 2;
    }

    if ($Level && !$Fail) {
      $cd = $sLevels - 2; $domain = $Levels[$cd].'.'.$tld;
      if (ereg($Levels[$cd].':', $cTLDs)) { $cd--; $domain = $Levels[$cd].'.'.$domain; }
    }

    if ($Level && !$Fail) {
      $Level--;
      if (!getmxrr($domain, $mxhosts, $weight)) $Fail = 3;
    }

    if ($Level && !$Fail) {
      $Level--;
      while (!$sh && list($nul, $mxhost) = each($mxhosts)) $sh = fsockopen($mxhost, 25);
      if (!$sh) $Fail=4;
    }

    if ($Level && !$Fail) {
      $Level--;
      $out = "";
      socket_set_blocking($sh, false);
      $WaitTil = time() + $Timeout;
      while ($WaitTil > time() && !$out) $out = fgets($sh, 256);
      if (!ereg('^220', $out)) $Fail = 5;
    }

    if ($sh) fclose($sh);

    if ($Fail) return false; else return true;
  }