/**
* Theme register_setting() sanitize callback
*
* Validate and whitelist user-input data before updating Theme
* Options in the database. Only whitelisted options are passed
* back to the database, and user-input data for all whitelisted
* options are sanitized.
*
* @link http://codex.wordpress.org/Data_Validation Codex Reference: Data Validation
*
* @param array $input Raw user-input data submitted via the Theme Settings page
* @return array $input Sanitized user-input data passed to the database
*
* @global array Settings Page Tab definitions
*
*/
function gpp_options_validate($input)
{
global $gpp_tabs;
// This is the "whitelist": current settings
$valid_input = (array) gpp_get_options();
// Get the array of Theme settings, by Settings Page tab
$settingsbytab = gpp_get_settings_by_tab();
// Get the array of option parameters
$option_parameters = gpp_get_option_parameters();
// Get the array of option defaults
$option_defaults = gpp_get_option_defaults();
// Get list of tabs
// Determine what type of submit was input
$submittype = 'submit';
foreach ($gpp_tabs as $tab) {
$resetname = 'reset-' . $tab['name'];
if (!empty($input[$resetname])) {
$submittype = 'reset';
}
}
// Determine what tab was input
$submittab = '';
foreach ($gpp_tabs as $tab) {
$submitname = 'submit-' . $tab['name'];
$resetname = 'reset-' . $tab['name'];
if (!empty($input[$submitname]) || !empty($input[$resetname])) {
$submittab = $tab['name'];
}
}
// Get settings by tab
$tabsettings = $settingsbytab[$submittab];
// Loop through each tab setting
foreach ($tabsettings as $setting) {
// If no option is selected, set the default
$valid_input[$setting] = !isset($input[$setting]) ? $option_defaults[$setting] : $input[$setting];
// If submit, validate/sanitize $input
if ('submit' == $submittype) {
// Get the setting details from the defaults array
$optiondetails = $option_parameters[$setting];
// Get the array of valid options, if applicable
$valid_options = isset($optiondetails['valid_options']) ? $optiondetails['valid_options'] : false;
// Validate checkbox fields
if ('checkbox' == $optiondetails['type']) {
// If input value is set and is true, return true; otherwise return false
if (isset($input[$setting]) && is_array($input[$setting])) {
foreach ($input[$setting] as $key => $checkbox) {
if (isset($checkbox) && 'on' == $checkbox) {
$valid_input[$setting][] = true;
}
}
} else {
$valid_input[$setting] = isset($input[$setting]) && true == $input[$setting] ? true : false;
}
} else {
if ('radio' == $optiondetails['type']) {
// Only update setting if input value is in the list of valid options
$valid_input[$setting] = array_key_exists($input[$setting], $valid_options) ? $input[$setting] : $valid_input[$setting];
} else {
if ('select' == $optiondetails['type']) {
// Only update setting if input value is in the list of valid options
$valid_input[$setting] = array_key_exists($setting, $valid_options) ? $input[$setting] : $valid_input[$setting];
} else {
if ('text' == $optiondetails['type'] || 'textarea' == $optiondetails['type']) {
// Validate no-HTML content
if ('nohtml' == $optiondetails['sanitize']) {
// Pass input data through the wp_filter_nohtml_kses filter
$valid_input[$setting] = wp_filter_nohtml_kses($input[$setting]);
}
// Validate HTML content
if ('html' == $optiondetails['sanitize']) {
// Pass input data through the wp_filter_kses filter
$valid_input[$setting] = addslashes($input[$setting]);
}
}
}
}
}
} elseif ('reset' == $submittype) {
// Set $setting to the default value
$valid_input[$setting] = $option_defaults[$setting];
}
}
return $valid_input;
}
/**
* Get GPP Theme Options
*
* Array that holds all of the defined values
* for GPP Theme options. If the user
* has not specified a value for a given Theme
* option, then the option's default value is
* used instead.
*
* @uses gpp_get_option_defaults() defined in \functions\options.php
* @uses get_option()
* @uses wp_parse_args()
*
* @return array $gpp_options current values for all Theme options
*/
function gpp_get_options()
{
// Get the option defaults
$option_defaults = gpp_get_option_defaults();
// Globalize the variable that holds the Theme options
global $gpp_options;
// Parse the stored options with the defaults
$gpp_options = (object) wp_parse_args(get_option(gpp_get_current_theme_id() . '_options', array()), $option_defaults);
// Return the parsed array
return $gpp_options;
}
