/**
* Determines if the menu item is part of the current URI
*
* @param string Url of item to check against
* @return mixed Returns Menu::CURRENT_ITEM for current, Menu::ACTIVE_ITEM for active, or 0
*/
protected function is_active_url($url)
{
$uri = $this->_current_url !== null ? $this->_current_url : $this->_uri;
$link = trim(URL::site($url), '/');
// Exact match
if ($uri === $link) {
return Menu::CURRENT_ITEM;
} else {
$current_pieces = explode('/', $uri);
array_shift($current_pieces);
$link_pieces = explode('/', $link);
array_shift($link_pieces);
for ($i = 0, $l = count($link_pieces); $i < $l; $i++) {
if (isset($current_pieces[$i]) and $current_pieces[$i] !== $link_pieces[$i] or empty($current_pieces[$i])) {
return 0;
}
}
return Menu::ACTIVE_ITEM;
}
return 0;
}
/**
* Outputs the Captcha image.
*
* @param boolean $html Html output
* @return mixed
*/
public function render($html = true)
{
if ($html === true) {
return '<img src="' . URL::site('captcha/' . $this->id) . '" width="' . $this->width . '" height="' . $this->height . '" alt="Captcha" class="captcha" />';
}
// Creates $this->image
$this->image_create($this->background);
// Add a random gradient
if (!$this->background) {
$color1 = imagecolorallocate($this->image, mt_rand(0, 100), mt_rand(0, 100), mt_rand(0, 100));
$color2 = imagecolorallocate($this->image, mt_rand(0, 100), mt_rand(0, 100), mt_rand(0, 100));
$this->image_gradient($color1, $color2);
}
// Add a few random circles
for ($i = 0, $count = mt_rand(10, $this->complexity * 3); $i < $count; $i++) {
$color = imagecolorallocatealpha($this->image, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255), mt_rand(80, 120));
$size = mt_rand(5, $this->height / 3);
imagefilledellipse($this->image, mt_rand(0, $this->width), mt_rand(0, $this->height), $size, $size, $color);
}
// Calculate character font-size and spacing
$default_size = min($this->width, $this->height * 2) / strlen($this->response);
$spacing = (int) ($this->width * 0.9 / strlen($this->response));
// Background alphabetic character attributes
$color_limit = mt_rand(96, 160);
$chars = 'ABEFGJKLPQRTVY';
// Draw each Captcha character with varying attributes
for ($i = 0, $strlen = strlen($this->response); $i < $strlen; $i++) {
// Use different fonts if available
$font = $this->fontpath . $this->fonts[array_rand($this->fonts)];
$angle = mt_rand(-40, 20);
// Scale the character size on image height
$size = $default_size / 10 * mt_rand(7, 13);
$box = imageftbbox($size, $angle, $font, $this->response[$i]);
// Calculate character starting coordinates
$x = $spacing / 4 + $i * $spacing;
$y = $this->height / 2 + ($box[2] - $box[5]) / 4;
// Draw captcha text character
// Allocate random color, size and rotation attributes to text
$color = imagecolorallocate($this->image, mt_rand(149, 255), mt_rand(199, 255), mt_rand(0, 255));
// Write text character to image
imagefttext($this->image, $size, $angle, $x, $y, $color, $font, $this->response[$i]);
// Draw "ghost" alphabetic character
$text_color = imagecolorallocatealpha($this->image, mt_rand($color_limit + 8, 255), mt_rand($color_limit + 8, 255), mt_rand($color_limit + 8, 255), mt_rand(70, 120));
$char = $chars[mt_rand(0, 13)];
imagettftext($this->image, $size * 2, mt_rand(-45, 45), $x - mt_rand(5, 10), $y + mt_rand(5, 10), $text_color, $font, $char);
}
// Send the correct HTTP header
Mii::$app->response->set_header('Content-Type', 'image/' . $this->image_type);
Mii::$app->response->set_header('Cache-Control', 'no-store, no-cache, must-revalidate, post-check=0, pre-check=0');
Mii::$app->response->set_header('Pragma', 'no-cache');
Mii::$app->response->set_header('Connection', 'close');
// Pick the correct output function
$function = 'image' . $this->image_type;
$function($this->image);
// Free up resources
imagedestroy($this->image);
}
public static function back_url($default = null)
{
if (isset($_GET['back_url'])) {
return urldecode($_GET['back_url']);
}
if ($default === null) {
return URL::current();
}
return $default;
}
function redirect($url, $use_back_url = false)
{
if ($use_back_url) {
$url = \mii\util\URL::back_url($url);
}
throw new \mii\web\RedirectHttpException($url);
}
/**
* Generates the full URL for a certain page.
*
* @param integer page number
* @return string page URL
*/
public function url($page = 1)
{
// Clean the page number
$page = max(1, (int) $page);
// No page number in URLs to first page
if ($page === 1 and !$this->first_page_in_url) {
$page = NULL;
}
switch ($this->current_page_source) {
case 'query_string':
case 'mixed':
return URL::site($this->request->uri() . $this->query([$this->current_page_source_key => $page]));
case 'route':
return URL::site($this->route->uri(array_merge($this->route_params, array($this->current_page_source_key => $page))) . $this->query());
}
return '#';
}
