UnPS-Short/api/api.backend.php

<?php

 /* ============================================================
  *
  *						  UnPS-API Backend
  *
  *	  Remember to sanitize everything before sending it here!
  *
  * ============================================================
  */

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, 'UnPS-GAMATechnologies (UnPS WebQuery/4-2.9; +http://unps.us)');
    curl_setopt($curlInit, CURLOPT_HTTPHEADER, $header);

    $response = curl_exec($curlInit);
    curl_close($curlInit);

    if($response) return true;
    return false;
}

class api{
	// Begin Short
	function shorten($apidb, $apikey, $sdb, $link, $dpass=null){
		$apisql = "SELECT * FROM `users` WHERE `key` = '$apikey' LIMIT 1";
		if(!$result = $apidb->query($apisql)) return 'ERROR: ['.$apidb->error.']';
		if($row = $result->fetch_assoc()){
			$canshort = $row['short'];
			$name = $row['name'];
			
			$ip = $_SERVER['REMOTE_ADDR'];
			
			$apisql = "INSERT INTO `apiuse` (time, name, apikey, ip, type, allowed, misc) VALUES (NOW(), '$name', '$apikey', '$ip', 'Link Shorten', '$canshort', '$link')";
			if(!$result = $apidb->query($apisql)) return 'ERROR: ['.$apidb->error.']';
		}
		if($canshort != 1) return '<div id="error">You are not authorized to shorten links</div>';
		
		$sql = "SELECT * FROM `links` WHERE `link` = '$link' LIMIT 1;";
		if($result = $sdb->query($sql)){
			if($row = $result->fetch_assoc()){
				$short = $row['shortlink'];
				return "<div id=\"error\">Existing link: <a onclick=\"copyToClipboard('http://unps.us/$short');\" href=\"http://unps.us/$short\" target=\"$short\">http://unps.us/?$short</a></div>";
			}
		}
		if(checkRemoteFile($link) !== true) return "<div id=\"error\">Dead Link: $link</div>";
		$short = substr(number_format(time() * mt_rand(),0,'',''),0,5); 
		$short = base_convert($short, 10, 36); 
		
		$dpass = substr(number_format(time() * mt_rand(),0,'',''),0,10); 
		$dpass = base_convert($short.$dpass, 10, 36);

		if($dpass != null): $sql = "INSERT INTO `links` (link, shortlink, dpass) VALUES ('$link', '$short', '$dpass')";
		else: $sql = "INSERT INTO `links` (link, shortlink, dpass) VALUES ('$link', '$short', '$apikey')";
		endif;
		
		if($result = $sdb->query($sql)): return "<div id=\"success\">Shortened: <a onclick=\"copyToClipboard('http://unps.us/$short');\" href=\"http://unps.us/$short\" target=\"$short\">http://unps.us/?$short</a>";
		else: return '<div id="error">ERROR: ['.$sdb->error.']</div>';
		endif;
	}
	
	function delShort ($apidb, $apikey, $sdb, $link, $dpass=null){
		$apisql = "SELECT * FROM `users` WHERE `key` = '$apikey' LIMIT 1";
		if(!$result = $apidb->query($apisql)) return 'ERROR: ['.$apidb->error.']';
		if($row = $result->fetch_assoc()){
			$canshort = $row['short'];
			$name = $row['name'];
			
			$ip = $_SERVER['REMOTE_ADDR'];
			
			$apisql = "INSERT INTO `apiuse` (time, name, apikey, ip, type, allowed, misc) VALUES (NOW(), '$name', '$apikey', '$ip', 'Short Link Delete', '$canshort', '$link')";
			if(!$result = $apidb->query($apisql)) return 'ERROR: ['.$apidb->error.']';
		}
		if($canshort != 1) return '<div id="error">You are not authorized to delete short links</div>';
		
		$sql = "SELECT * FROM `links` WHERE `shortlink` = '$link' LIMIT 1;";
		if($result = $sdb->query($sql)){
			if($row = $result->fetch_assoc()){
				$short = $row['shortlink'];
				$password = $row['dpass'];
				
				if($dpass != null) $apikey = $dpass;
				
				if($apikey == $password){
					$sql = "DELETE FROM `links` WHERE `shortlink` = '$link' AND `dpass` = '$apikey' LIMIT 1;";
					if(!$result = $sdb->query($sql)) return '<div id="error">ERROR: ['.$sdb->error.'</div>]';
					echo "<div id=\"success\">Deleted: $link</div>";
					return;
				}else{ return "<div id=\"error\">The password doesn't match. Delete $link aborted!</div>"; }
			}
		}else{ return '<div id="error">ERROR: ['.$sdb->error.']</div>'; }
	}

	function reportLink($apidb, $apikey, $sdb, $link, $reason){
		$apisql = "SELECT * FROM `users` WHERE `key` = '$apikey' LIMIT 1;";
		if(!$result = $apidb->query($apisql)) return 'ERROR: ['.$apidb->error.']';
		if($row = $result->fetch_assoc()){
			$canshort = $row['short'];
			$name = $row['name'];
			
			$ip = $_SERVER['REMOTE_ADDR'];

			$apisql = "INSERT INTO `apiuse` (time, name, apikey, ip, type, allowed, misc) VALUES (NOW(), '$name', '$apikey', '$ip', 'Report Link', '$canshort', '$link')";
			if(!$result = $apidb->query($apisql)) return 'ERROR: ['.$apidb->error.']';
		}
		if($canshort != 1) return '<div id="error">You are not authorized to shorten links, meaning you also can\'t report false negatives</div>';

		$sql = "INSERT INTO `manual` (time, apikey, ip, link, reason) VALUES(NOW(), '$apikey', '$ip', '$link', '$reason');";
		if(!$result = $sdb->query($sql)) return '<div id="error">ERROR: ['.$sdb->error.']</div>';
		return "<div id=\"success\">Reported $link. Please check back in a day or two</div>";
	}

	// End Short
}

?>