/**
* Get a word-filtered version of the specified text.
*
* @param string Text to filter
* @return string Filtered version of the input text
*/
function wordfilter_text($text)
{
if (!addon_installed('wordfilter')) {
return $text;
}
require_code('word_filter');
return check_word_filter($text, NULL, true);
}
/**
* Filter to alter form field values based on fields.xml. Usually a no-op.
*
* @param string The name of the parameter
* @param ?string The current value of the parameter (NULL: none)
* @return string The filtered value of the parameter
*/
function filter_form_field_default($name, $val)
{
$restrictions = load_field_restrictions();
foreach ($restrictions as $_r => $_restrictions) {
$_r_exp = explode(',', $_r);
foreach ($_r_exp as $__r) {
if (trim($__r) == '' || simulated_wildcard_match($name, trim($__r), true)) {
foreach ($_restrictions as $bits) {
list($restriction, $attributes) = $bits;
if (array_key_exists('error', $attributes) && substr($attributes['error'], 0, 1) == '!') {
$attributes['error'] = do_lang(substr($attributes['error'], 1));
}
switch (strtolower($restriction)) {
case 'minlength':
if (strlen($val) < intval($attributes['embed'])) {
warn_exit(array_key_exists('error', $attributes) ? make_string_tempcode($attributes['error']) : do_lang_tempcode('FXML_FIELD_TOO_SHORT', escape_html($name), strval(intval($attributes['embed']))));
}
break;
case 'maxlength':
if (strlen($val) > intval($attributes['embed'])) {
warn_exit(array_key_exists('error', $attributes) ? make_string_tempcode($attributes['error']) : do_lang_tempcode('FXML_FIELD_TOO_LONG', escape_html($name), strval(intval($attributes['embed']))));
}
break;
case 'shun':
if (simulated_wildcard_match(strtolower($val), strtolower($attributes['embed']), true)) {
warn_exit(array_key_exists('error', $attributes) ? make_string_tempcode($attributes['error']) : do_lang_tempcode('FXML_FIELD_SHUNNED', escape_html($name)));
}
break;
case 'pattern':
if (preg_match('#' . str_replace('#', '\\#', $attributes['embed']) . '#', $val) == 0) {
warn_exit(array_key_exists('error', $attributes) ? make_string_tempcode($attributes['error']) : do_lang_tempcode('FXML_FIELD_PATTERN_FAIL', escape_html($name), escape_html($attributes['embed'])));
}
break;
case 'possibilityset':
$values = explode(',', $attributes['embed']);
$found = false;
foreach ($values as $value) {
if ($val == trim($value) || $val == $value || simulated_wildcard_match($val, $value, true)) {
$found = true;
}
}
$secretive = array_key_exists('secretive', $attributes) && $attributes['secretive'] == '1';
if (!$found) {
warn_exit(array_key_exists('error', $attributes) ? make_string_tempcode($attributes['error']) : do_lang_tempcode($secretive ? 'FXML_FIELD_NOT_IN_SET_SECRETIVE' : 'FXML_FIELD_NOT_IN_SET', escape_html($name), escape_html($attributes['embed'])));
}
break;
case 'disallowedsubstring':
if (simulated_wildcard_match(strtolower($val), strtolower($attributes['embed']))) {
warn_exit(array_key_exists('error', $attributes) ? make_string_tempcode($attributes['error']) : do_lang_tempcode('FXML_FIELD_SHUNNED_SUBSTRING', escape_html($name), escape_html($attributes['embed'])));
}
break;
case 'disallowedword':
if (addon_installed('wordfilter')) {
global $WORDS_TO_FILTER;
$temp_remember = $WORDS_TO_FILTER;
$WORDS_TO_FILTER = array($attributes['embed'] => array('word' => $attributes['embed'], 'w_replacement' => '', 'w_substr' => 0));
require_code('word_filter');
check_word_filter($val, $name, false, true, false);
$WORDS_TO_FILTER = $temp_remember;
} else {
if (strpos($val, $attributes['embed']) !== false) {
warn_exit_wordfilter($name, do_lang_tempcode('WORD_FILTER_YOU', escape_html($attributes['embed'])));
}
// In soviet Russia, words filter you
}
break;
case 'replace':
if (!array_key_exists('from', $attributes)) {
$val = $attributes['embed'];
} else {
$val = str_replace($attributes['from'], $attributes['embed'], $val);
}
break;
case 'removeshout':
$val = preg_replace_callback('#[^a-z]*[A-Z]{4}[^a-z]*#', 'deshout_callback', $val);
break;
case 'sentencecase':
if (strlen($val) != 0) {
$val = strtolower($val);
$val[0] = strtoupper($val);
// assumes no leading whitespace
$val = preg_replace_callback('#[\\.\\!\\?]\\s+[a-z]#m', 'make_sentence_case_callback', $val);
}
break;
case 'titlecase':
$val = ucwords(strtolower($val));
break;
case 'prepend':
if (substr($val, 0, strlen($attributes['embed'])) != $attributes['embed']) {
$val = $attributes['embed'] . $val;
}
break;
case 'append':
if (substr($val, -strlen($attributes['embed'])) != $attributes['embed']) {
$val .= $attributes['embed'];
}
break;
}
}
}
}
}
return $val;
}
/**
* Get the value of the specified POST key, if it is found, or the default otherwise.
*
* @param ID_TEXT The name of the parameter to get
* @param ?mixed The default value to give the parameter if the parameter value is not defined (NULL: allow missing parameter) (false: give error on missing parameter)
* @param boolean Whether we are cleaning for HTML rather than Comcode/plain-text
* @param boolean Whether to convert WYSIWYG contents to Comcode automatically
* @return ?string The parameter value (NULL: missing)
*/
function post_param($name, $default = false, $html = false, $conv_from_wysiwyg = true)
{
$ret = __param($_POST, $name, $default, false, true);
if ($ret === NULL) {
return NULL;
}
if (trim($ret) == '' && $default !== '' && array_key_exists('require__' . $name, $_POST) && $_POST['require__' . $name] != '0') {
require_code('failure');
improperly_filled_in_post($name);
}
if ($ret != '' && addon_installed('wordfilter')) {
if ($name != 'password') {
require_code('word_filter');
if ($ret !== $default) {
$ret = check_word_filter($ret, $name);
}
}
}
if ($ret !== NULL) {
$ret = unixify_line_format($ret, NULL, $html);
}
if (isset($_POST[$name . '__is_wysiwyg']) && $_POST[$name . '__is_wysiwyg'] == '1' && $conv_from_wysiwyg) {
if (trim($ret) == '') {
$ret = '';
} else {
require_code('comcode_from_html');
$ret = trim(semihtml_to_comcode($ret));
}
} else {
if (substr($ret, 0, 10) == '[semihtml]' && substr(trim($ret), -11) == '[/semihtml]') {
$_ret = trim($ret);
$_ret = substr($_ret, 10, strlen($_ret) - 11 - 10);
if (strpos($_ret, '[semihtml') === false) {
require_code('comcode_from_html');
$ret = trim(semihtml_to_comcode($_ret));
}
}
}
require_code('input_filter');
if ($GLOBALS['BOOTSTRAPPING'] == 0 && $GLOBALS['MICRO_AJAX_BOOTUP'] == 0) {
check_posted_field($name, $ret);
}
if ($ret === $default) {
return $ret;
}
if (strpos($ret, ':') !== false && function_exists('ocp_url_decode_post_process')) {
$ret = ocp_url_decode_post_process($ret);
}
check_input_field_string($name, $ret, true);
return $ret;
}
