var $url;

var $status_code;

var $curl_handler;

var $content;

var $phpQueryDocument;

var $processed;

var $nombre_seccion;

function __construct($user_id) {

$this->user_id = $user_id;

$this->curl_handler = curl_init();

curl_setopt($this->curl_handler, CURLOPT_HEADER, 0);

curl_setopt($this->curl_handler, CURLOPT_FOLLOWLOCATION, 1);

curl_setopt($this->curl_handler, CURLOPT_SSL_VERIFYPEER, false);

curl_setopt($this->curl_handler, CURLOPT_COOKIEJAR, dirname(__FILE__)."/cookies/".$this->user_id.".txt");

curl_setopt($this->curl_handler, CURLOPT_COOKIEFILE, dirname(__FILE__)."/cookies/".$this->user_id.".txt");

curl_setopt($this->curl_handler, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($this->curl_handler, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.3) Gecko/20070309 Firefox/2.0.0.3");

}

public function is_authorized() {

// En el login me mostró el login

if (strpos($this->content, '<script src="https://www.u-cursos.cl/upasaporte/javascript?servicio=ucursos&UCURSOS_SERVER') !== false) {

return false;

}

// Me tiró un no autorizado

else if ($this->status_code == '403') {

return false;

}

else {

return true;

}

}

public function is_connected() {

return $this->status_code != '0';

}

public function exists() {

// Si lo encontró con 200, existe

return $this->status_code == '200';

}

function fetch($url, $output_format = 'UTF-8') {

$this->url = $url;

curl_setopt($this->curl_handler, CURLOPT_URL, $this->url);

$this->content = curl_exec($this->curl_handler);

$info = curl_getinfo($this->curl_handler);

curl_close($this->curl_handler);

$this->status_code = $info['http_code'];

$this->charset = substr($info['content_type'], strpos($info['content_type'], 'charset=')+strlen('charset='));

if(!$this->is_authorized() || !$this->exists()) {

return false;

}

// $this->content = mb_convert_encoding($this->content, $output_format, $this->charset);

return true;

}

function process() {

if (!$this->processed) {

$this->processed = true;

$this->phpQueryDocument = phpQuery::newDocumentHTML($this->content);

phpQuery::selectDocument($this->phpQueryDocument);

}

}

function getSeccion() {

if ($this->nombre_seccion != null) return $this->nombre_seccion;

$this->process();

$this->nombre_seccion = pq('h2.ucursos')->text();

return $this->nombre_seccion;

}

public static function toUserType($str, $default = 'administrador_de_comunidad', $nan = 'miembro_de_comunidad') {

// $default: cuando no tiene tipo

// $nan: cuando no es un tipo conocido

$types = array('profesor_de_catedra', 'auxiliar', 'ayudante', 'alumno', 'miembro_de_comunidad', 'administrador_de_comunidad');

$str = UcursosScrapper::toAscii($str);

return $str ? (in_array($str, $types) ? $str : $nan ) : $default;

}

public static function toAscii($str, $delimiter='_') {

//$clean = iconv('UTF-8', 'ASCII//TRANSLIT', $str);

$clean = $str;

$clean = preg_replace("/[^a-zA-Z0-9\/_|+ -]/", '', $clean);

$clean = strtolower(trim($clean, '-'));

$clean = preg_replace("/[\/_|+ -]+/", $delimiter, $clean);

return $clean;

}