/** has token been used before?
*
* @var &array $source Source array
* @var string $key key to find token in source array, e.g. oncelerToken
* @return bool|null true (not seen before), false (seen before), null (no token)
*/
public static function check(&$source, $key)
{
if (!$key) {
throw new Exception("\\ArtfulRobot\\Onceler::check - no key given");
}
if (!is_array($source)) {
throw new Exception("\\ArtfulRobot\\Onceler::check - source is not an array");
}
$token = \ArtfulRobot\Utils::arrayValue($key, $source);
// no token - return null;
if (!$token) {
\ArtfulRobot\Debug::log("!! Warning: \\ArtfulRobot\\Onceler::check - no token at key {$key} returning null");
return null;
}
$spent_tokens =& \ArtfulRobot\Utils::arrayReference('\\ArtfulRobot\\Onceler::spent_tokens', $_SESSION, array());
if (array_key_exists($token, $spent_tokens)) {
\ArtfulRobot\Debug::log("!! \\ArtfulRobot\\Onceler: recognised spent token, resetting source token.");
$source[$key] = false;
return false;
}
//error_log("!! setting new token $token");
// new token
$spent_tokens[$token] = true;
return true;
}
/**
* Run query supplied and return first (or $col_name) field from first row.
*/
public function fetchSingle($query, $col_name = null)
{
$query = static::validQueryArg($query);
$stmt = $this->prepAndExecute($query);
if (!$stmt) {
$output = null;
} elseif ($col_name === null) {
$output = $stmt->fetch(PDO::FETCH_COLUMN);
} else {
$row = $stmt->fetch(PDO::FETCH_ASSOC);
$output = \ArtfulRobot\Utils::arrayValue($col_name, $row);
}
$this->debug("! fetchSingle returning: {$output}");
return $output;
}
function runModule()
{
$task = \ArtfulRobot\Utils::arrayValue('task', $this->request);
if (!$task) {
$this->response->error = get_class($this) . " Task '{$task}' invalid";
return;
}
// convert task into PSR-2 (camel case)
// some_task_name -> someTaskName
$method_name = lcfirst(str_replace(' ', '', ucwords(str_replace('_', ' ', $task))));
if (!method_exists($this, $method_name)) {
$this->response->error = get_class($this) . " Task '{$task}' unknown";
return;
}
if ($this->task_methods && !in_array($method_name, $this->task_methods)) {
$this->response->error = get_class($this) . " '{$method_name}' Method not a Task";
return;
}
$this->{$method_name}();
}