private function is_auth()
{
static $flickr_ok = null;
if ( isset( $flickr_ok ) ){
return $flickr_ok;
}
$flickr_ok = false;
$token = Options::get( 'flickr_token_' . User::identify()->id );
if ( $token != '' ){
$flickr = new Flickr();
$result = $flickr->call( 'flickr.auth.checkToken', array( 'api_key' => $flickr->key, 'auth_token' => $token ) );
if ( isset( $result->auth->perms ) ){
$flickr_ok = true;
$_SESSION['nsid'] = (string)$result->auth->user['nsid'];
}
else{
Options::set( 'flickr_token_' . User::identify()->id );
unset( $_SESSION['flickr_token'] );
}
}
return $flickr_ok;
}
public function exif($type = false) {
if(!$this->_exif) {
$response = Flickr::call(array(
'method' => 'flickr.photos.getExif',
'photo_id' => $this->_id,
'secret' => $this->_secret
),86400);
$exifs = $response['photo']['exif'];
if($exifs) {
foreach($exifs as $ex) {
if($ex['tag'] === 'FNumber' && $ex['tagspace'] === 'ExifIFD') {
$this->_exif['aperture'] = (float)$ex['raw']['_content'];
} elseif(!$this->_exif['aperture'] && $ex['tag'] === 33437) {
$a = explode('/',$ex['clean']['_content']);
$this->_exif['aperture'] = (float)$a[1];
}
if($ex['tag'] === 'ExposureTime' && $ex['tagspace'] === 'ExifIFD') {
$this->_exif['exposure'] = $ex['raw']['_content'];
} elseif(!$this->_exif['exposure'] && $ex['tag'] === 33434) {
$this->_exif['exposure'] = $ex['raw']['_content'];
}
if($ex['tag'] === 'FocalLength' && $ex['tagspace'] === 'ExifIFD') {
$a = explode(' ',$ex['raw']['_content']);
$this->_exif['focal_length'] = (float)$a[0];
} elseif(!$this->_exif['focal_length'] && $ex['tag'] === 37386) {
$a = explode(' ',$ex['clean']['_content']);
$this->_exif['focal_length'] = (float)$a[0];
}
if($ex['tag'] === 'ISO' && $ex['tagspace'] === 'ExifIFD') {
$this->_exif['iso'] = (int)$ex['raw']['_content'];
} elseif(!$this->_exif['iso'] && $ex['tag'] === 34855) {
$this->_exif['iso'] = (int)$ex['raw']['_content'];
}
}
}
}
if(!$type) {
return ($this->_exif['aperture'] || $this->_exif['exposure'] || $this->_exif['focal_length'] || $this->_exif['iso']);
}
return $this->_exif[$type] ? $this->_exif[$type] : false;
}