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< ? php
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session_start ();
// Generate a token on the fly. This should prevent POST spam attacks directly into process.php
$token = substr ( number_format ( time () * mt_rand (), 0 , '' , '' ), 0 , 10 );
$token = base_convert ( $token , 10 , 36 );
$_SESSION [ 'token' ] = $token ;
$catchid = substr ( number_format ( time () * mt_rand (), 0 , '' , '' ), 0 , 10 );
$catchVal = hash ( 'sha256' , $catchid . mt_rand () . time () . substr ( number_format ( time () * mt_rand (), 0 , '' , '' ), 0 , 10 ));
$catchVal = base_convert ( $catchVal . $catchid , 10 , 36 );
$_SESSION [ 'catch' ] = $catchid . " : " . $catchVal ;
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// exit codes:
/*
exit 0 - Good script
exit 5 - Link redirection
10x exit codes
exit 11 - Shortener Stats redirection
exit 12 - Shortener Resolver redirection
exit 13 - Shortener About redirection
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*/
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$shortdb = new mysqli ( 'localhost' , 'short' , 'password' , 'short' ); // Connect to link shortener DB
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if ( $shortdb -> connect_errno > 0 ) die ( 'Unable to connect to database [' . $shortdb -> connect_error . '] - Check dbsettings.php' );
// This has been depreciated. Still here for backwards compatibility with existing links
if ( ! empty ( $_GET [ 'l' ])){
$link = $shortdb -> real_escape_string ( strtolower ( stripslashes ( strip_tags ( $_GET [ 'l' ]))));
$link = str_replace ( '/' , '' , $link );
$sql = " SELECT * FROM `links` WHERE `shortlink` = ' $link ' LIMIT 1; " ;
if ( $result = $shortdb -> query ( $sql )){
if ( $row = $result -> fetch_assoc ()){
$link = $row [ 'link' ];
header ( " location: $link " );
exit ( 5 ); // Stop script execution to save on resources
}
}
}
// New way to check for valid short links, two characters shorter than the if statement above
if ( ! empty ( $_GET )){
$key = key ( $_GET );
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if ( $key == " stats " ){ header ( " location:http://s.lob.li " ); exit ( 11 ); }
if ( $key == " resolv " ){ header ( " location:http://r.lob.li " ); exit ( 12 ); }
if ( $key == " about " ){ header ( " location:http://a.lob.li " ); exit ( 13 ); }
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$link = $shortdb -> real_escape_string ( strtolower ( stripslashes ( strip_tags ( $key ))));
$link = str_replace ( '/' , '' , $link );
$sql = " SELECT * FROM `links` WHERE `shortlink` = ' $link ' LIMIT 1; " ;
if ( $result = $shortdb -> query ( $sql )){
if ( $row = $result -> fetch_assoc ()){
$link = $row [ 'link' ];
header ( " location: $link " );
exit ( 5 ); // Stop script execution to save on resources
}
}
}
?>
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>lob.li - Objective Links</title>
<!-- Bootstrap -->
<link href="include/Bootstrap/css/bootstrap.min.css" rel="stylesheet">
<link href="include/css/style.css?<?php echo time(); ?>" rel="stylesheet">
<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
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<div class="container center-block">
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<?php include('Include/HTML/navbar.htm') ?>
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<div class="row">
<div class="col-md-3"></div>
<div class="col-md-6">
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<h2 class="form-shorten-heading">Please give me a link to shorten...</h2>
<form class="form-shorten form-inline" id="form-shorten" role="form">
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<div class="input-group">
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<input type="text" class="form-control input-lg" id="link" placeholder="http://" required autofocus>
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<span class="input-group-btn">
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<button type="button" class="btn btn-primary btn-lg btn-block submitbtn">
<span class="glyphicon glyphicon-share-alt icon-rotate"></span>
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</button>
</span>
</div><!-- /input-group -->
</form>
<?php if(isset($_GET['errmsg'])){ ?>
<div class="alert alert-danger" id="message">
Oh noes! An error has occured.
</div>
<?php } if(isset($_GET['gomsg'])){ ?>
<div class="alert alert-success" id="message">
Your link: <a href="#" title="HTML Title of website being shortened">lob.li/12345</a>
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<!--<a href="#" id="newlink" title="New Link"> This would require changing how I generate links, and I don't feel like doing it right now - 6/22/12 1:21am EST
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<span class="glyphicon glyphicon-refresh" style="float:right;"></span>
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</a>-->
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<a href="#" id="copylink" title="Copy Link" onclick="copyToClipboard('http://lob.li/$short');">
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<span class="glyphicon glyphicon-link" style="float:right;padding-right:1%;"></span>
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</a>
</div>
<?php } ?>
</div>
<div class="col-md-3"></div>
</div>
</div>
<div id="footer" style="position:absolute;width:100%;bottom:1px;">
<div class="container">
<p class="text-muted">Copyright © 2014 Unified Programming Solutions - Version: 0.0.1 - <a href="?gomsg">Success link</a> <a href="?errmsg">Error Link</a></p>
</div>
</div>
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<!-- Include all compiled plugins (below), or include individual files as needed -->
<script src="include/Bootstrap/js/bootstrap.min.js"></script>
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<script type="text/javascript" language="JavaScript">
jQuery(document).ready(function(){
$('#link').focus();
//$('#message').addClass('hide');
$('#homelink').addClass('active');
});
function copyToClipboard(text){
window.prompt ("Copy to clipboard: Ctrl+C, Enter (when closed I will open your link in a new tab)", text);
}
</script>
<script type="text/javascript" language="JavaScript">
// This is our AJAX - Thank you Wizzy <3
$("#form-shorten").submit(function(event){
$("#theLoader").fadeIn("fast");
event.preventDefault();
event.stopPropagation();
$.post("process.php?token=<?php echo $token; ?>", $(this).serialize(), function(data){
$("#message").hide().slideDown("fast");
$("#theLoader").hide();
if($('#error').length){
$('#short-button').removeClass('btn-primary');
$('#short-button').removeClass('btn-success');
$('#short-button').addClass('btn-danger');
}else if($('#success').length){
$('#short-button').removeClass('btn-primary');
$('#short-button').removeClass('btn-danger');
$('#short-button').addClass('btn-success');
}
});
});
</script>
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</body>
</html>
