/**
* Verify API user authentication. If invalid terminate execution.
* @since 2.2.0
* @version 2.2.0
* @param string $user Username passed to the API via URL argument
* @param string $key API Key passed to the API via URL argument
* @return void
*/
function api_user_authenticate($user = '', $key = '')
{
global $hc_cfg;
$valid = 0;
$api_users = array();
if (!isset($user) || !isset($key)) {
return api_error(2);
}
if ($hc_cfg[128] == 2) {
$api_users_age = apc_exists(HC_APCPrefix . 'users_age') ? apc_fetch(HC_APCPrefix . 'users_age') : 0;
if (apc_exists(HC_APCPrefix . 'users')) {
$api_users = apc_fetch(HC_APCPrefix . 'users');
}
if ($api_users_age <= date("U") && count($api_users) > 0) {
apc_user_write_cache($api_users);
$api_users = array();
}
if (array_key_exists($key, $api_users) && $api_users[$key][1] == $user) {
++$api_users[$key][0];
$count = $api_users[$key];
unset($api_users[$key]);
$api_users[$key] = $count;
$valid = 1;
} else {
$result = doQuery("SELECT PkID, NetworkName, APIKey FROM " . HC_TblPrefix . "users WHERE NetworkName = '" . cIn($user) . "' AND APIKey = '" . cIn($key) . "' AND APIAccess = 1 AND IsBanned = 0");
if (hasRows($result)) {
$api_users[mysql_result($result, 0, 2)][0] = '1';
$api_users[mysql_result($result, 0, 2)][1] = mysql_result($result, 0, 1);
$valid = 1;
}
}
if (count($api_users) > $hc_cfg[130]) {
$user_keys = array_keys($api_users);
$remove = array_shift($user_keys);
$store_cnt = $api_users[$remove][0];
$store_user = $api_users[$remove][1];
doQuery("UPDATE " . HC_TblPrefix . "users SET APICnt = (APICnt + '" . cIn($store_cnt) . "') WHERE APIKey = '" . cIn($remove) . "' AND NetworkName = '" . cIn($store_user) . "'");
array_shift($api_users);
}
apc_store(HC_APCPrefix . 'users', $api_users);
} else {
$result = doQuery("SELECT PkID, NetworkName, APIKey FROM " . HC_TblPrefix . "users WHERE NetworkName = '" . cIn($user) . "' AND APIKey = '" . cIn($key) . "' AND APIAccess = 1 AND IsBanned = 0");
if (hasRows($result)) {
$valid = 1;
doQuery("UPDATE " . HC_TblPrefix . "users SET APICnt = (APICnt + 1) WHERE APIKey = '" . cIn($key) . "' AND NetworkName = '" . cIn($user) . "'");
}
}
if ($valid == 0) {
return api_error(2);
} else {
return null;
}
}
/**
* Delete cache files. Filters for filenames starting with a period. Generates redirect index.html file to prevent cache directory browsing.
* @since 2.0.0
* @version 2.0.0
* @return void
*/
function clearCache()
{
global $hc_cfg;
foreach (glob(HCPATH . '/cache/*') as $filename) {
if (substr(basename($filename), 0, 1) != '.') {
unlink($filename);
}
}
$fp = fopen(HCPATH . '/cache/index.html', 'w');
fwrite($fp, "<html><head><title></title><META HTTP-EQUIV=\"Refresh\" CONTENT=\"0; URL=../\"></head><body></body></html>");
fclose($fp);
if (function_exists('apc_clear_cache') && $hc_cfg[128] == 2) {
$api_users = apc_exists(HC_APCPrefix . 'users') ? apc_fetch(HC_APCPrefix . 'users') : array();
apc_user_write_cache($api_users);
$iterator = new APCIterator('user', NULL, APC_ITER_KEY);
foreach ($iterator as $key => $data) {
if (preg_match('/^' . HC_APCPrefix . '/', $key)) {
apc_delete($key);
}
}
}
}