<?
ini_set('magic_quotes_gpc', 0);
/*
DALib

(c) 2005 Kevin Wallace
<http://doofsmack.deviantart.com/>
<kevin@gotdoof.com>

(Currently pre-release)
If you distribute or use this, please leave this message intact.
*/
define('DALIB_STATUS_LOGGEDIN', 1);
define('DALIB_STATUS_LOGGEDOUT', 2);

define('DALIB_REUSETOKEN', 0x1);

class DALib {
	var $username = null;
	var $authtoken = null;
	var $cookie = '';
	var $status = DALIB_STATUS_LOGGEDOUT;
	
	function login($username, $password, $flags = DALIB_REUSETOKEN){
		$postargs = array('username' => $username, 'password' => $password);
		if($flags & DALIB_REUSETOKEN){
			$postargs['reusetoken'] = 1;
		}
		$http = new DALib_HTTPRequest($this);
		if($http->post('http://www.deviantart.com/users/login', $postargs)){
			if(preg_match("/Set-Cookie: userinfo=(.*);/Ui", $http->headers, $matches)){
				$this->cookie = "Cookie: userinfo={$matches[1]};\n"; 
				$userinfo = unserialize(urldecode($matches[1]));
				if($userinfo['username'] && $userinfo['authtoken']){
					$this->username = $userinfo['username'];
					$this->authtoken = $userinfo['authtoken'];
					$this->status = DALIB_STATUS_LOGGEDIN;
					return true;
				}else{
					return false;
				}
			}else{
				return false;
			}
		}
	}
	
	function loggedin(){
		if($this->status == DALIB_STATUS_LOGGEDIN){
			return true;
		}else{
			return false;
		}
	}
}

class DALib_HTTPRequest{
	var $page;
	var $headers;
	var $da;
	
	function DALib_HTTPRequest($da){
		if($da){
			$this->da = $da;
		}else{
			die("DALib_HTTPRequest needs a reference to a DALib object");
		}		
	}
	
	function post($url, $postargs){
		if(is_array($postargs)){
			$postdata = array();
			foreach($postargs as $name => $value){
				$postdata[] = urlencode($name).'='.urlencode($value);
			}
			$postdata = implode('&', $postdata);
		}else{
			$postdata = $postargs;
		}
		if(preg_match("/^http:\/\/(.+)(?::([\d]+))?(\/.*)$/Ui", $url, $matches)){
			$host = $matches[1];
			$port = ($matches[2] != '') ? $matches[2] : 80;
			$path = $matches[3];
			$request = "POST $path HTTP/1.0\r\n".
				"Host: $host\r\n".
				"User-Agent: DALib/0.1\r\n".
				($this->da->cookie ? $this->da->cookie : '').
				"Content-Type: application/x-www-form-urlencoded\r\n".
				"Content-Length: ".strlen($postdata)."\r\n\r\n".
				"$postdata\r\n\r\n";
			if($sock = fsockopen($host, $port)){
				fwrite($sock, $request);
				while(!feof($sock)){
					$response .= fgets($sock, 4096);
				}
				fclose($sock);
				list($this->headers, $this->page) = explode("\n\n", $response, 2);
				return true;
			}else{
				return false;
			}
		}else{
			return false;
		}
	}
}

define("DEV_CRIT_ENCOURAGED", 64);
define("DEV_CRIT_WELCOME", 0);
define("DEV_CRIT_DISCOURAGED", 32);
define("DEV_CRIT_COMMENTS_DISABLED", 16);

class DALib_NewDeviation{
	var $posturl = "http://www.deviantart.com/submit/step4-writing";
	var $devpoetry = '';
	var $devpreview = '';
	var $devcatid = 1123;
	var $devtitle = false;
	var $devdesc = false;
	var $devkeywords = false;
	var $devisadult = '';
	var $devismobile = '';
	var $devislit = '';
	var $devcritpref = DEV_CRIT_WELCOME;
	
	function DALib_NewDeviation($da){
		if($da){
			$this->da = $da;
		}else{
			die("DALib_NewDeviation needs a reference to a DALib object");
		}		
	}
	function post(){
		if(in_array(false, array($this->devtitle, $this->devdesc, $this->devkeywords))){
			echo "ERROR: At least one of the required fields for submitting a new deviation was left blank";
			return false;
		}else{
			$http = new DALib_HTTPRequest($this->da);
			$postargs = array(
				"devpoetry"	=> $this->devpoetry,
				"devpreiew"	=> $this->devpreview,
				"devcatid"	=> $this->devcatid,
				"devtitle"	=> $this->devtitle,
				"devdesc"		=> $this->devdesc,
				"devkeywords"	=> $this->devkeywords,
				"devisadult"	=> $this->devisadult,
				"devidmobile"	=> $this->devismobile,
				"devislit"	=> $this->devislit,
				"devcritpref"	=> $this->devcritpref,
			);
			$http->post($this->posturl, $postargs);
			if(preg_match("/Click <a href=\"\/deviation\/([\d]+)\/\">here<\/a> to view your newly submitted deviation/Ui", $http->page, $matches)){
				return $matches[1];
			}else{
				echo "Submit failed! Error page below:\n\n". str_replace("\n", "<br />", htmlentities($http->page));
				return false;
			}
		}
	}
}