function http_session()
{
global $php;
if (empty($_COOKIE[Session::$sess_name])) {
$sess_id = uniqid(RandomKey::string(Session::$sess_size - 13));
$php->response->setcookie(Session::$sess_name, $sess_id, time() + $php->protocol->config['session']['cookie_life']);
} else {
$sess_id = trim($_COOKIE[Session::$sess_name]);
}
$session_cache = new Cache($php->protocol->config['session']['cache_url']);
Session::$cache_life = $php->protocol->config['session']['session_life'];
Session::$cache_prefix = Session::$sess_name;
$sess = new Session($session_cache);
$_SESSION = $php->request->session = $sess->load($sess_id);
$php->session_open = true;
$php->session = $sess;
}
/**
* 设置Form Secret防止，非当前页面提交数据
* @param $page_name
* @param $return
* @return unknown_type
*/
static function secret($page_name = '', $length = 32, $return = false)
{
$secret = uniqid(RandomKey::string($length));
if ($return) {
return $secret;
} else {
$k = 'form_' . $page_name;
setcookie($k, $secret, 0, '/');
if (!isset($_SESSION)) {
session();
}
$_SESSION[$k] = $secret;
}
}
/**
* 使用imagick扩展生成验证码图片
* @param int $img_width
* @param int $img_height
* @param bool $addRandomLines
* @param bool $swirl
* @return array
*/
static function verifycode_imagick($img_width = 80, $img_height = 30, $addRandomLines = true, $swirl = true)
{
$fontSize = 24;
/* imagick对象 */
$Imagick = new \Imagick();
/* 背景对象 */
$bg = new \ImagickPixel();
/* Set the pixel color to white */
$bg->setColor('rgb(235,235,235)');
/* 画刷 */
$ImagickDraw = new \ImagickDraw();
if (is_file(self::$verifyCodeFontFile)) {
$ImagickDraw->setFont(self::$verifyCodeFontFile);
}
$ImagickDraw->setFontSize($fontSize);
$ImagickDraw->setFillColor('black');
$code = strtoupper(RandomKey::string(self::$verifyCodeLength));
/* Create new empty image */
$Imagick->newImage($img_width, $img_height, $bg);
/* Write the text on the image */
$Imagick->annotateImage($ImagickDraw, 4, 20, 0, $code);
/* 变形 */
if ($swirl) {
$Imagick->swirlImage(10);
}
/* 随即线条 */
if ($addRandomLines) {
$ImagickDraw->line(rand(0, 70), rand(0, 30), rand(0, 70), rand(0, 30));
$ImagickDraw->line(rand(0, 70), rand(0, 30), rand(0, 70), rand(0, 30));
$ImagickDraw->line(rand(0, 70), rand(0, 30), rand(0, 70), rand(0, 30));
$ImagickDraw->line(rand(0, 70), rand(0, 30), rand(0, 70), rand(0, 30));
$ImagickDraw->line(rand(0, 70), rand(0, 30), rand(0, 70), rand(0, 30));
}
/* Draw the ImagickDraw object contents to the image. */
$Imagick->drawImage($ImagickDraw);
/* Give the image a format */
$Imagick->setImageFormat('png');
/* Send headers and output the image */
return array('image' => $Imagick->getImageBlob(), 'code' => $code);
}
