Security

key.com
Type:	application
Added by:	hulkeypoo
Entered:	04/10/2003
Last modified:	31/10/2002
Rating:	- (fewer than 3 votes)
Views:	4575
Keycom Version2 (production tested)- This is a class to store values in a conacated string. This string can then be passed as a post variable to a child program. As the internals of the variable are not exposed this provides the most security. A companion script securepage.php checks for the existance of this post variable. The combination of the class and script allows for completely secure (cookie-less) www programing with spider friendly clean urs's.
<?php
 // ********* License COMPLETELY FREE NO Guarantee ********************

                            // keycom_class  keycom_class_v2 - where security is essential.  Cookieless passing of post variables.


                            // This class will enable the user to pass all necessary variables in a

                            // secure fasion to the child php page.

                            // it accomplishes this by creating objects that search and or replace the

                            // variables one desires to pass in a conacated string

                            // This is shot # 2 on crating classes so beware

                            // Thanks for your interest.    Ian A. Stewart

                            // ************** examples for use see bottom of listing **********

                            //$ikey = new keycom($tmcvars);   // instantiate

                            //$ikey->set_var_name('tkey');    // set the search variable

                            //$ikey->find_val();              // execute the search

                            //echo $ikey->ret_var_val();      // return the found search

                            

                            // the two below are the ones that set a new key value and return it

                            //$ikey->set_tkey('tband_rsn',88);                 // set a [key] value


                            //echo $ikey->ret_key_val();      // return the [key] strinn

                            // $ikey->find_n_return('etclike') // returns the value of etclike

                            // file settings.php

                             $tmcvars  = "junk|0|tkey|012243|variable2|value2|b|0|etclike|test|etcgiving|0|etcout|0|my|0|variables|0" ;

                            //                   see the format is variable|value the seperator is the "|" charactor


                            //                    added junk to the first field to take care of bug


                            //   see bottom for examples of use   [by Ian A. Stewart] World Multcast.inc

                            //

                            //include_once '../someincludepath/yoursettings.php'; put your vars shown above in your settings file

                            

                            
 class keycom
 {// class block begin
 var $tmcvars = "";

                            var $var_name = "";

                            var $var_val = "";

                            

                            function find_n_return($bx){
 $this->set_var_name($bx);
 $this->find_val();

                            return $this->var_val;

                            }

                            

                            

                            function keycom($tmcvars)

                            {
 //echo "Master Data Set to  $tmcvars <br>";
 $this->tmcvars = $tmcvars;
 //$this->a = explode('|',$this->tmcvars);
 }

                            

                            function set_var_name($var_name){
 $this->var_name = $var_name;

                             }

                            

                            function set_tkey($key_val,$new_val){
 $a = explode('|',$this->tmcvars);

                                $xx = 0;

                                //echo $a[1];

                                while (isset($a[$xx]))

                                {

                                     //echo $key_val;

                                     if ($a[$xx] == $key_val)

                                     {

                                     $a[$xx + 1] = $new_val;

                                     $this->tmcvars =  implode('|',$a);

                                     }// echo $a[$xx]; echo '<br>';

                                $xx++;

                                }

                            }

                            

                            function ret_var_val(){

                            return $this->var_val;

                            }

                            

                            

                            function ret_key_val(){

                            return $this->tmcvars;

                            }

                            

                            function find_val()

                            {
 //echo $this->var_name;
 $a = explode('|',$this->tmcvars);

                                $xx = 0;

                                //echo 'test'.$a[1];

                                while (isset($a[$xx]))

                                {

                                     if ($a[$xx] == $this->var_name)

                                     {

                                     $this->var_val = $a[$xx + 1];

                                     return $this->var_val;

                                      //echo $a[$xx]; echo '<br>';

                                      }

                                $xx++;

                                }

                            }

                            

                            

                            } // class block end

                            

                            // *****************************

                            // Examples

                            //  no Copyright no Guarantee

                            //

                            // these three below allow you to look up a variable valeu
 $ikey = new keycom($tmcvars);   // instantiate
 echo "instantiated  value = ";

                            echo $ikey->ret_key_val().'<br>';
 //

                            echo $ikey->find_n_return('etclike').'<br>';   // return the found search

                            //

                            

                            // the two below are the ones that set a new key value and return it
 $ikey->set_tkey('etclike',88);                 // set a [key] value (notice the output)
 echo $ikey->ret_key_val();      // return the whole [key] string

                            ?>
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