public function __construct()
{
parent::__construct();
if (!($this->caches[$this->cache_prefix] = $this->cache->get($this->cache_prefix))) {
$query = $this->get_many_by('active', 1);
foreach ((array) $query as $row) {
$this->caches[$this->cache_prefix][$row->match] = $row->url;
}
$this->cache->save($this->cache_prefix, $this->caches[$this->cache_prefix], get_ttl());
}
}
protected function _firstaccess()
{
switch ($this->mode) {
case 'database':
if (!($value = ci()->cache->get($this->database_table))) {
$this->database_resource = ci()->load->database($this->database_group, true);
$dbc = $this->database_resource->get_where($this->database_table, ['id' => 1]);
$dbr = $dbc->row();
$value = $dbr->value;
ci()->cache->save($this->database_table, $value, get_ttl());
}
$this->appvar = json_decode($value, true);
break;
case 'file':
if (file_exists($this->appvarpath) == true) {
$this->appvar = (include $this->appvarpath);
}
break;
}
}
public function show($options)
{
if (in_array($options['widget'], $this->force_token) || $this->token_required) {
if ($options['wkey'] !== $this->token) {
$this->_throw_error('Token Validation Failed');
}
}
/* remove the wkey because it changes with each page request and we already tested it */
unset($options['wkey']);
/* are they asking for a user? if so we insert it here so it's on the cache key */
if ($options['user'] == 'true') {
$options['user'] = isset(ci()->user->id) ? ci()->user->id : 0;
}
/* are they asking for a role? if so we insert it here so it's on the cache key */
if ($options['role'] == 'true') {
$options['role'] = isset(ci()->user->role_id) ? ci()->user->role_id : 0;
}
/* In code are we forcing a user? if so we insert it here so it's on the cache key */
if (in_array($options['widget'], $this->force_user)) {
$options['user'] = $this->force_user[$options['widget']];
}
/* In code are we forcing a role? if so we insert it here so it's on the cache key */
if (in_array($options['widget'], $this->force_role)) {
$options['role'] = $this->force_role[$options['widget']];
}
/* In code are we forcing a cache? if so we insert it here so it's on the cache key */
if (in_array($options['widget'], $this->force_cache)) {
$options['cache'] = $this->force_cache[$options['widget']];
}
/* ok now we can figure out the cache key */
$cache_name = 'widget_' . md5(json_encode($options));
/* was this cached or has it expired? */
if (!($output = ci()->cache->get($cache_name))) {
/* add a validation rule just for widgets */
ci()->validate->attach('widget_command', function ($validate, $field, $options) {
/* make sure we only have 2 parts ie 1 colon */
if (count(explode(':', $field)) !== 2) {
return false;
}
return (bool) preg_match("#^[0-9A-Za-z\\/:_]+\$#", $field);
});
/* validate the library and class */
if (!ci()->input->is_valid('required|max_length[64]|widget_command', $options['widget'], false)) {
$this->_throw_error('Unknown Widget');
}
/* verification passed - split off the library and method */
list($class, $method) = explode(':', $options['widget'], 2);
/* add widget to the begining of the class name */
$classname = 'Widget_' . basename($class);
/*
Let PHP try to autoload it through any available autoloaders
(including Composer and user's custom autoloaders). If we
don't find it, then assume it's a CI library that we can reach.
*/
if (class_exists($classname)) {
$obj = new $classname();
} else {
$classfile = trim(dirname($class) . '/' . $classname, '/.');
if (!ci()->load->exists($classfile)) {
$this->_throw_error('Widget Not Found');
}
ci()->load->library($classfile);
$classname = strtolower($classname);
$obj =& ci()->{$classname};
}
if (!method_exists($obj, $method)) {
/* failed - can't find the method */
$this->_throw_error('Widget Method Not Found');
}
/* Call the class with our parameters */
$output = $obj->{$method}($options);
/* cache length - use parameter cache="0" for no cache */
$cache_ttl = isset($options['cache']) ? (int) $options['cache'] : get_ttl(false);
/* cache it */
if ($cache_ttl > 0) {
ci()->cache->save($cache_name, $output, $cache_ttl + mt_rand(1, 120));
}
}
return $output;
}
