/**
* Validate the data in passed in the configuration page
*
* @param $config - the information from the form mod.html
* @return nothing , but returns an error if the configuration is wrong
*/
function liveclassroom_process_options(&$config)
{
global $CFG, $USER;
/*******
we do the following verfication before submitting the configuration
-The parameters sent can not be empty
-The url of the server can not finish with a /
-The url must start with http://
-The api account has to valid
********/
$config->servername = trim($config->servername);
$config->adminusername = trim($config->adminusername);
$config->adminpassword = trim($config->adminpassword);
if (!isadmin($USER->id)) {
wimba_add_log(WIMBA_ERROR, WC, get_string('wrongconfigurationURLunavailable', 'liveclassroom'));
error(get_string('errormustbeadmin', 'liveclassroom'));
}
if (empty($config->servername)) {
wimba_add_log(WIMBA_ERROR, WC, get_string('wrongconfigurationURLunavailable', 'liveclassroom'));
error(get_string('wrongconfigurationURLunavailable', 'liveclassroom'), $_SERVER["HTTP_REFERER"]);
} else {
if (empty($config->adminusername)) {
wimba_add_log(WIMBA_ERROR, WC, get_string('emptyAdminUsername', 'liveclassroom'));
error(get_string('emptyAdminUsername', 'liveclassroom'), $_SERVER["HTTP_REFERER"]);
} else {
if (empty($config->adminpassword)) {
wimba_add_log(WIMBA_ERROR, WC, get_string('emptyAdminPassword', 'liveclassroom'));
error(get_string('emptyAdminPassword', 'liveclassroom'), $_SERVER["HTTP_REFERER"]);
}
}
}
$length = strlen($config->servername);
if ($config->servername[$length - 1] == '/') {
wimba_add_log(WIMBA_ERROR, WC, get_String('trailingSlash', 'liveclassroom'));
error(get_String('trailingSlash', 'liveclassroom'), $_SERVER["HTTP_REFERER"]);
}
if (!preg_match('/^http:\\/\\//', $config->servername)) {
wimba_add_log(WIMBA_ERROR, WC, get_String('trailingHttp', 'liveclassroom'));
error(get_String('trailingHttp', 'liveclassroom'), $_SERVER["HTTP_REFERER"]);
}
$prefixUtil = new PrefixUtil();
$prefix = $prefixUtil->getPrefix($config->adminusername);
$api = new LCApi($config->servername, $config->adminusername, $config->adminpassword, $prefix);
if (!$api->lcapi_authenticate()) {
wimba_add_log(WIMBA_ERROR, WC, get_string('wrongadminpass', 'liveclassroom'));
error(get_string('wrongadminpass', 'liveclassroom'), $_SERVER["HTTP_REFERER"]);
}
$domxml = false;
$php_extension = get_loaded_extensions();
for ($i = 0; $i < count($php_extension); $i++) {
if ($php_extension[$i] == "libxml" || $php_extension[$i] == "domxml") {
$domxml = true;
}
}
if ($domxml === false) {
wimba_add_log(WIMBA_ERROR, WC, get_string('domxml', 'liveclassroom'));
error(get_string('domxml', 'liveclassroom'), $_SERVER["HTTP_REFERER"]);
}
return;
}
