diff options
Diffstat (limited to 'linkshorter/index.php')
| -rw-r--r-- | linkshorter/index.php | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/linkshorter/index.php b/linkshorter/index.php new file mode 100644 index 0000000..75ac9aa --- /dev/null +++ b/linkshorter/index.php @@ -0,0 +1,108 @@ +<?php +require 'functions.php'; +require 'db.php'; + +ob_start("sanitize_output"); + +if ( $_SERVER['REQUEST_METHOD'] != 'POST'){ + + $key = "lscache_" . md5( strtolower($_SERVER["HTTP_HOST"].$_SERVER["REQUEST_URI"].$_SERVER["QUERY_STRING"])); + if ( $db->exists($key) ) { + header("X-Cache: Hit"); + echo $db->get($key); + ob_end_flush(); + exit; + } + +?> +<!doctype html> +<html> +<head> + <meta charset="utf-8"> + <title>Link Shorter</title> + <!--style>html{position:relative;min-height:100%}body{margin-bottom:60px}.footer{position:absolute;bottom:0;width:100%}#copyright-text{text-decoration:underline;color:#333}</style--> + <style> + <?php echo file_get_contents("../tools/style.css"); ?> + </style> + <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css"> + <link rel='shortcut icon' href='../tools/favicon.ico' type='image/x-icon'> + <meta name="viewport" content="width=device-width, initial-scale=1.0"> +</head> + <?php require("../tools/navbar.php"); ?> + <div class="container"> + <div class="text-center"> + <div class="row center-block vertical-center"> + <form class="form-horizontal " method="POST"> + <fieldset> + + <legend class="text-centered"><h1>Amazing Linkshorter</h1></legend> + + <div class="form-group"> + <label class="col-md-4 control-label" for="url">Link:</label> + <div class="col-md-5"> + <input id="url" name="url" placeholder="http://www.moehm.org/" class="form-control input-md" required="" type="text"> + + </div> + </div> + + <div class="form-group"> + <label class="col-md-4 control-label" for="short">(optional)</label> + <div class="col-md-4"> + <input id="short" name="short" placeholder="Your own query string here." class="form-control input-md" type="text"> + + </div> + </div> + + <div class="form-group"> + <label class="col-md-4 control-label" for="singlebutton"></label> + <div class="col-md-4"> + <button id="singlebutton" name="singlebutton" class="btn btn-info" type="submit">Short!</button> + </div> + </div> + + </fieldset> + </form> + </div> + </div> + </div> + <?php require("../tools/footer.php"); ?> +</body> +<?php + $html = ob_get_contents(); + $db->set($key, $html, 3600); + ob_end_flush(); + +} else { + + if ( empty($_POST["url"]) || $_POST["url"] == "" ){ + do_output("<p>We need a link to be shortened.</p>", "400 Client Failed", false, "<h1>Missing URL</h1>"); + } + + if ( ! preg_match("/^[a-z]+:\/\/[a-z0-9_]+/i", $_POST["url"]) ){ + do_output("<p>Only schemas like http:// or ftp:// are supported.</p>", "400 Client Failed", false, "<h1>This does not look like an url</h1>"); + } + + + $hash = md5($_POST["url"]); + if( ! empty($_POST["short"]) && $_POST["short"] != "" ) { + $short = $_POST["short"]; + if ( $db->exists($short) == 1 && $_POST["url"] != $db->get($short) ) + do_output("<p>Someone else has already a registered entry under '".htmlentities($short)."'.</p>", "422 Unprocessable Entity", false, "<h1>Query string already exists.</h1>"); + } else { + if( ! $short = $db->get($hash) ){ + $arr = array("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", "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", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9"); + + do { + $short=""; + for ($i=0;$i<5;$i++){ + $r = mt_rand(0, count($arr)-1); + $short.=$arr[$r]; + } + } while ( $db->exists($short) ); + $db->set($hash, $short); + } + } + $db->set($short, $_POST["url"]); + + do_output("<p>Your short link for <a href=\"".htmlentities($_POST["url"])."\">".htmlentities($_POST["url"])."</a> is <br> http://".$_SERVER["HTTP_HOST"]."/".$short."</p>", "200 OK", false, "<h1>Success</h1>"); +} |