function __construct()
{
parent::__construct();
global $photonic_picasa_client_id, $photonic_picasa_client_secret, $photonic_picasa_disable_title_link;
$this->client_id = $photonic_picasa_client_id;
$this->client_secret = $photonic_picasa_client_secret;
$this->provider = 'picasa';
$this->oauth_version = '2.0';
$this->response_type = 'code';
$this->scope = 'https://picasaweb.google.com/data/';
$this->link_lightbox_title = empty($photonic_picasa_disable_title_link);
$cookie = Photonic::parse_cookie();
global $photonic_picasa_allow_oauth;
$this->oauth_done = false;
if ($photonic_picasa_allow_oauth && isset($cookie['picasa']) && isset($cookie['picasa']['oauth_token']) && isset($cookie['picasa']['oauth_refresh_token'])) {
// OAuth2, so no Access token secret
if ($this->is_token_expired($cookie['picasa'])) {
$this->refresh_token($cookie['picasa']['oauth_refresh_token']);
$cookie = Photonic::parse_cookie();
// Refresh the cookie object based on the results of the refresh token
if ($this->is_token_expired($cookie['picasa'])) {
// Tried refreshing, but didn't work
$this->oauth_done = false;
} else {
$this->oauth_done = true;
}
} else {
$this->oauth_done = true;
}
} else {
if (!isset($cookie['picasa']) || !isset($cookie['picasa']['oauth_token']) || !isset($cookie['picasa']['oauth_refresh_token'])) {
$this->oauth_done = false;
}
}
}
protected function make_call($query_url, $display_what, $columns, $thumb_size = 75, $auth_required = false)
{
global $photonic_instagram_client_id;
$ret = '';
$query = $query_url;
if (substr($query, -1, 1) != '&' && !stripos($query, '?')) {
$query .= '?';
} else {
if (substr($query, -1, 1) != '&' && stripos($query, '?')) {
$query .= '&';
}
}
if ($auth_required) {
$cookie = Photonic::parse_cookie();
if (isset($cookie['instagram']) && !$this->is_token_expired($cookie['instagram'])) {
$query .= 'access_token=' . $cookie['instagram']['oauth_token'];
} else {
return __("Please login to see this content.", 'photonic');
}
} else {
$query .= 'client_id=' . $photonic_instagram_client_id;
}
$response = wp_remote_request($query, array('sslverify' => false));
$url = '';
if ($display_what == 'single-media') {
$base_url = $this->get_normalized_http_url($query);
$parameters = $this->parse_parameters(substr($query, strlen($base_url) + 1));
if (isset($parameters['url'])) {
$url = $parameters['url'];
}
}
if (!is_wp_error($response)) {
if (isset($response['response']) && isset($response['response']['code'])) {
if ($response['response']['code'] == 200) {
$body = json_decode($response['body']);
if (isset($body->data) && $display_what != 'single-media') {
$data = $body->data;
$this->gallery_index++;
switch ($display_what) {
case 'users':
$ret .= $this->process_users($data, $columns, $thumb_size);
break;
case 'media':
default:
$ret .= $this->process_media($data, $columns, $thumb_size);
break;
}
} else {
if ($display_what == 'single-media') {
$ret .= $this->process_single_media($body, $url);
} else {
return __('No data returned. Unknown error', 'photonic');
}
}
} else {
if (isset($response['body'])) {
$body = json_decode($response['body']);
if (isset($body->meta) && isset($body->meta->error_message)) {
return $body->meta->error_message;
} else {
return __('Unknown error', 'photonic');
}
} else {
if (isset($response['response']['message'])) {
return $response['response']['message'];
} else {
return __('Unknown error', 'photonic');
}
}
}
}
} else {
return __('There was a problem connecting. Please try back after some time.', 'photonic');
}
return $ret;
}
/**
* Checks if authentication has been enabled and the user has authenticated. If so, it signs the call, then adds the additional parameters to it.
* This method also attaches the oauth_signature to the parameters.
*
* @param $api_method
* @param $method
* @param $parameters
* @return mixed
*/
public function sign_call($api_method, $method, $parameters)
{
$allow_oauth = 'photonic_' . $this->provider . '_allow_oauth';
global ${$allow_oauth};
if (${$allow_oauth}) {
$cookie = Photonic::parse_cookie();
if (isset($cookie[$this->provider]) && isset($cookie[$this->provider]['oauth_token']) && isset($cookie[$this->provider]['oauth_token_secret']) && isset($cookie[$this->provider]['oauth_token_type']) && $cookie[$this->provider]['oauth_token_type'] == 'access') {
$token = array('oauth_token' => $cookie[$this->provider]['oauth_token'], 'oauth_token_secret' => $cookie[$this->provider]['oauth_token_secret']);
$this->nonce = $this->nonce();
$this->oauth_timestamp = time();
$signature = $this->generate_signature($api_method, $parameters, $method, $token);
if (isset($this->signature_parameters) && isset($this->signature_parameters['parameters'])) {
$this->signature_parameters['parameters']['oauth_signature'] = $signature;
return $this->signature_parameters['parameters'];
}
}
}
return $parameters;
}
/**
* Checks if a user has authenticated a particular provider's services. When this is invoked we don't know if the page has
* a Flickr / 500px / SmugMug gallery, so we just invoke it and set some global variables.
*
* @return mixed
*/
function check_authentication()
{
if (is_admin()) {
return;
}
global $photonic_flickr_allow_oauth, $photonic_500px_allow_oauth, $photonic_smug_allow_oauth, $photonic_picasa_allow_oauth;
if (!$photonic_flickr_allow_oauth && !$photonic_500px_allow_oauth && !$photonic_smug_allow_oauth && !$photonic_picasa_allow_oauth) {
return;
}
global $photonic_flickr_oauth_done, $photonic_500px_oauth_done, $photonic_smug_oauth_done;
$photonic_flickr_oauth_done = $photonic_500px_oauth_done = $photonic_smug_oauth_done = false;
$cookie = Photonic::parse_cookie();
if ($photonic_flickr_allow_oauth && isset($cookie['flickr']) && isset($cookie['flickr']['oauth_token']) && isset($cookie['flickr']['oauth_token_secret'])) {
global $photonic_flickr_gallery;
if (!isset($photonic_flickr_gallery)) {
$photonic_flickr_gallery = new Photonic_Flickr_Processor();
}
$current_token = array('oauth_token' => $cookie['flickr']['oauth_token'], 'oauth_token_secret' => $cookie['flickr']['oauth_token_secret']);
if (isset($_REQUEST['oauth_verifier']) && isset($_REQUEST['oauth_token'])) {
$current_token['oauth_token'] = $_REQUEST['oauth_token'];
$current_token['oauth_verifier'] = $_REQUEST['oauth_verifier'];
$new_token = $photonic_flickr_gallery->get_access_token($current_token);
if (isset($new_token['oauth_token']) && isset($new_token['oauth_token_secret'])) {
$photonic_flickr_oauth_done = true;
$redirect = remove_query_arg(array('oauth_token', 'oauth_verifier'));
wp_redirect($redirect);
exit;
}
} else {
if (isset($cookie['flickr']['oauth_token_type']) && $cookie['flickr']['oauth_token_type'] == 'access') {
$access_token_response = $photonic_flickr_gallery->check_access_token($current_token);
if (is_wp_error($access_token_response)) {
$photonic_flickr_gallery->is_server_down = true;
}
$photonic_flickr_oauth_done = $photonic_flickr_gallery->is_access_token_valid($access_token_response);
}
}
}
if ($photonic_500px_allow_oauth && isset($cookie['500px']) && isset($cookie['500px']['oauth_token']) && isset($cookie['500px']['oauth_token_secret'])) {
global $photonic_500px_gallery;
if (!isset($photonic_500px_gallery)) {
$photonic_500px_gallery = new Photonic_500px_Processor();
}
$current_token = array('oauth_token' => $cookie['500px']['oauth_token'], 'oauth_token_secret' => $cookie['500px']['oauth_token_secret']);
if (isset($_REQUEST['oauth_verifier']) && isset($_REQUEST['oauth_token'])) {
$current_token['oauth_token'] = $_REQUEST['oauth_token'];
$current_token['oauth_verifier'] = $_REQUEST['oauth_verifier'];
$new_token = $photonic_500px_gallery->get_access_token($current_token);
if (isset($new_token['oauth_token']) && isset($new_token['oauth_token_secret'])) {
// Strip out the token and the verifier from the callback URL and send the user to the callback URL.
$photonic_500px_oauth_done = true;
$redirect = remove_query_arg(array('oauth_token', 'oauth_verifier'));
wp_redirect($redirect);
exit;
}
} else {
if (isset($cookie['500px']['oauth_token_type']) && $cookie['500px']['oauth_token_type'] == 'access') {
$access_token_response = $photonic_500px_gallery->check_access_token($current_token);
if (is_wp_error($access_token_response)) {
$photonic_500px_gallery->is_server_down = true;
}
$photonic_500px_oauth_done = $photonic_500px_gallery->is_access_token_valid($access_token_response);
}
}
}
if ($photonic_smug_allow_oauth && isset($cookie['smug']) && isset($cookie['smug']['oauth_token']) && isset($cookie['smug']['oauth_token_secret'])) {
global $photonic_smugmug_gallery;
if (!isset($photonic_smugmug_gallery)) {
$photonic_smugmug_gallery = new Photonic_SmugMug_Processor();
}
$current_token = array('oauth_token' => $cookie['smug']['oauth_token'], 'oauth_token_secret' => $cookie['smug']['oauth_token_secret']);
if (!$photonic_smug_oauth_done && (isset($cookie['smug']['oauth_token_type']) && $cookie['smug']['oauth_token_type'] == 'request' || !isset($cookie['smug']['oauth_token_type']))) {
$new_token = $photonic_smugmug_gallery->get_access_token($current_token);
if (isset($new_token['oauth_token']) && isset($new_token['oauth_token_secret'])) {
$access_token_response = $photonic_smugmug_gallery->check_access_token($new_token);
if (is_wp_error($access_token_response)) {
$photonic_smugmug_gallery->is_server_down = true;
}
$photonic_smug_oauth_done = $photonic_smugmug_gallery->is_access_token_valid($access_token_response);
}
} else {
if (isset($cookie['smug']['oauth_token_type']) && $cookie['smug']['oauth_token_type'] == 'access') {
$access_token_response = $photonic_smugmug_gallery->check_access_token($current_token);
if (is_wp_error($access_token_response)) {
$photonic_smugmug_gallery->is_server_down = true;
}
$photonic_smug_oauth_done = $photonic_smugmug_gallery->is_access_token_valid($access_token_response);
}
}
}
if (isset($photonic_picasa_allow_oauth)) {
global $photonic_picasa_gallery;
if (!isset($photonic_picasa_gallery)) {
$photonic_picasa_gallery = new Photonic_Picasa_Processor();
}
}
if (isset($photonic_instagram_allow_oauth)) {
global $photonic_instagram_gallery;
if (!isset($photonic_instagram_gallery)) {
$photonic_instagram_gallery = new Photonic_Instagram_Processor();
}
}
}