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lobli/Website/Include/PHP/functions.php
alopexc0de adfcc57e00
Redis-only version of lob.li - Almost complete.
This version removes all the mysql stuff and uses a redis db for everything.
2014-07-25 17:41:51 -04:00

105 lines
3.4 KiB
PHP

<?php
require('Include/PHP/db.php');
// Returns will be in the structure: response code seperator extra data and will be formatted client side
/*
Response codes:
0 - Successful shorten
1 - Existing link found
2 - Dead link
3 - Database Error
4 - Sanitize failed
5 - Successful lob.li link resolve
6 - Successful lookup of non-lob.li link
7 - Unsuccessful lookup of non-lob.li link
8 - Lookup of link Stats (returns 8 $sep JSONarray)
*/
function shorten($redis, $link, $linkage, $seperator){
$short = $redis->get("links:id:$link");
if($short){
$title = $redis->get("links:title:$link");
return "1$seperator$link$seperator$title";
}else{
do {
if(checkRemoteFile($link) !== true) return "2$seperator$link";
$title = getRemoteTitle($url);
$short = substr(number_format(time() * mt_rand(),0,'',''),0,5);
$short = base_convert($short, 10, 36);
if(!$redis->exists("links:id:$short")) {
break;
}
} while (1);
$xTime = 3136320000; // About 100 years, give or take
// Delete the links in 24 hours, 1 week, 1 month respectevly
if($linkage == '0') $xTime = 86400;
if($linkage == '1') $xTime = 604800;
if($linkage == '2') $xTime = 2628000;
$redis->setex("links:id:$short", $xTime, $link);
$redis->setex("links:title:$short", $xTime, $title);
$redis->setex("links:date:$short", $xTime, date("d/m/Y", strtotime($str)));
$redis->setex("tracking:clicks:$link", $xTime, 1);
return "0$seperator$short$seperator$title";
}
}
function stats($redis, $seperator){
$tracking = $redis->keys("tracking:clicks:*");
$tracking = rsort($tracking);
$tracking = array_slice($tracking, 0, 5, true);
return "8$seperator".json_encode($tracking);
}
function getRemoteTitle($url){
$url = parse_url($url);
if($tags = get_meta_tags($url['scheme'].'://'.$url['host'])){
$ret = $tags['description'];
return $ret;
}else{ return false; }
}
function checkRemoteFile($ip=null){
if($ip==null) return false;
// Setup the connection and only get the headers
$header[0] = "Accept: text/xml,application/xml,application/xhtml+xml,";
$header[0] .= "text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5";
$header[] = "Cache-Control: max-age=0";
$header[] = "Connection: keep-alive";
$header[] = "Keep-Alive: 300";
$header[] = "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7";
$header[] = "Accept-Language: en-us,en;q=0.5";
$header[] = "Pragma: ";
$curlInit = curl_init($ip);
curl_setopt($curlInit, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($curlInit, CURLOPT_HEADER, true);
curl_setopt($curlInit, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curlInit, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; UnPS-GAMATechnologies (UnPS WebQuery/4-2.9; +http://lob.li))');
curl_setopt($curlInit, CURLOPT_HTTPHEADER, $header);
$response = curl_exec($curlInit);
curl_close($curlInit);
if($response) return true;
return false;
}
function sanitize($input, $seperator){
if ($input == null) die("4$seperator");
$output = strip_tags($input);
$output = stripslashes($output);
//filter_input(INPUT_GET, 'name', FILTER_SANITIZE_STRING)
$output = mysql_real_escape_string($output);
return $output;
}
?>