/** Generate a token we've not used before
*/
public static function newToken()
{
$spent_tokens = \ArtfulRobot\Utils::arrayReference('\\ArtfulRobot\\Onceler::spent_tokens', $_SESSION, array());
while (array_key_exists($new = md5(++self::$count . 'NaCl' . time()), $spent_tokens)) {
self::$count++;
}
return $new;
}
/**
* 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}();
}