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  Classes of Tom Schaefer  >  Checksum  >  readme.txt  >  Download  
File: readme.txt
Role: Example script
Content type: text/plain
Description: show case script from www.query4u.de
Class: Checksum
Compute checksums of values passed by link URLs
Author: By
Last change: change
Date: 5 years ago
Size: 1,452 bytes
 

Contents

Class file image Download
<?php

include("config.inc.php");

ini_set("max_execution_time",1);
$request Request::getInstance();

Checksum::isValidFromTo("2009-02-01","2009-12-31");

if(
  (
    
$request->hasAction() and
    
$request->hasParam() and
    
Checksum::proof(
      
$request->getAction(),
      
$request->getParam(),
      
$_SERVER["HTTP_REFERER"],
      
$request->getChecksum()
    )
  )

) {

  echo 
"<html><head><title>Test >Checksum</title></head><body>
<h1>Success</h1>
<p>
    This checksum works from 2009-02-01 until 2009-12-31.
    The link is only reachable from the refering adress
    http://www.phpclasses.org/browse/package/5144.html
</p>
<p>
If you try to access
this page from another browser tab or browser directly,
then you will be automatically redirected to
http://www.phpclasses.org/browse/package/5144.html.
</p>
<p>
Only a browser reload avoids a redirect. {"
.strftime("%Y-%m-%d %X",time())."}

</p>

<pre style=\"padding:20px; outline:1px solid #ccc;\">

\$chksm = Checksum::build(\"show\",\"me\",\"http://www.phpclasses.org/browse/package/5144.html\");

Checksum::isValidFromTo(\"2009-02-01\",\"2009-12-31\");
if(Checksum::proof(
      \$_GET['act'],
      \$_GET['prm'],
      \$_SERVER['HTTP_REFERER'],
      \$_GET['csm']
    )){
  echo 'success';
} else {
  echo 'failure';
}
</pre>
</body></html>"
;

} else {
    
header("Location:http://www.phpclasses.org/browse/package/5144.html");
}