function wpcf7_text_custom_validation_message($result, $tag)
{
$cmtagobj = new WPCF7_Shortcode($tag);
$post_id = sanitize_text_field($_POST['_wpcf7']);
$name = $cmtagobj->name;
$key = "_cf7cm_" . $name;
$val = get_post_meta($post_id, $key, true);
$enable = get_post_meta($post_id, '_cf7cm_enable_errors');
if ($enable[0] != 0) {
$value = isset($_POST[$name]) ? trim(wp_unslash(strtr((string) $_POST[$name], "\n", " "))) : '';
if ('text' == $cmtagobj->basetype) {
if ($cmtagobj->is_required() && '' == $value) {
$result->invalidate($cmtagobj, $val);
}
}
if ('email' == $cmtagobj->basetype) {
if ($cmtagobj->is_required() && '' == $value) {
$result->invalidate($cmtagobj, $val);
} elseif ('' != $value && !wpcf7_is_email($value)) {
$key = "_cf7cm_" . $name . "-valid";
$val = get_post_meta($post_id, $key, true);
if ($val) {
$result->invalidate($cmtagobj, $val);
} else {
$result->invalidate($cmtagobj, wpcf7_get_message('invalid_email'));
}
}
}
if ('url' == $cmtagobj->basetype) {
if ($cmtagobj->is_required() && '' == $value) {
$result->invalidate($cmtagobj, $val);
} elseif ('' != $value && !wpcf7_is_url($value)) {
$result->invalidate($cmtagobj, wpcf7_get_message('invalid_url'));
}
}
if ('tel' == $cmtagobj->basetype) {
if ($cmtagobj->is_required() && '' == $value) {
$result->invalidate($cmtagobj, $val);
} elseif ('' != $value && !wpcf7_is_tel($value)) {
$result->invalidate($cmtagobj, wpcf7_get_message('invalid_tel'));
}
}
if (!empty($value)) {
$maxlength = $cmtagobj->get_maxlength_option();
$minlength = $cmtagobj->get_minlength_option();
if ($maxlength && $minlength && $maxlength < $minlength) {
$maxlength = $minlength = null;
}
$code_units = wpcf7_count_code_units($value);
if (false !== $code_units) {
if ($maxlength && $maxlength < $code_units) {
$result->invalidate($cmtagobj, wpcf7_get_message('invalid_too_long'));
} elseif ($minlength && $code_units < $minlength) {
$result->invalidate($cmtagobj, wpcf7_get_message('invalid_too_short'));
}
}
}
}
return $result;
}
function wpcf7_date_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$name = $tag->name;
$min = $tag->get_date_option('min');
$max = $tag->get_date_option('max');
$value = isset($_POST[$name]) ? trim(strtr((string) $_POST[$name], "\n", " ")) : '';
if ($tag->is_required() && '' == $value) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_required');
} elseif ('' != $value && !wpcf7_is_date($value)) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_date');
} elseif ('' != $value && !empty($min) && $value < $min) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('date_too_early');
} elseif ('' != $value && !empty($max) && $max < $value) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('date_too_late');
}
if (isset($result['reason'][$name]) && ($id = $tag->get_id_option())) {
$result['idref'][$name] = $id;
}
return $result;
}
function wpcf7_birthday_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$name = $tag->name;
$value = isset($_POST[$name]) ? trim(wp_unslash(strtr((string) $_POST[$name], "\n", " "))) : '';
if ('birthday' == $tag->type && $value != '') {
if (preg_match('@^(0?[1-9]|[12][0-9]|3[01])/(0?[1-9]|1[0-2])$@', $value) != 1) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_birthday');
}
}
if ('birthday*' == $tag->type) {
if ($value == '') {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_required');
} else {
if (preg_match('@^(0?[1-9]|[12][0-9]|3[01])/(0?[1-9]|1[0-2])$@', $value) != 1) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_birthday');
}
}
}
if (isset($result['reason'][$name]) && ($id = $tag->get_id_option())) {
$result['idref'][$name] = $id;
}
return $result;
}
function wpcf7_number_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$name = $tag->name;
$value = isset($_POST[$name]) ? trim(strtr((string) $_POST[$name], "\n", " ")) : '';
$min = $tag->get_option('min', 'signed_int', true);
$max = $tag->get_option('max', 'signed_int', true);
if ($tag->is_required() && '' == $value) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_required');
} elseif ('' != $value && !wpcf7_is_number($value)) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_number');
} elseif ('' != $value && '' != $min && (double) $value < (double) $min) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('number_too_small');
} elseif ('' != $value && '' != $max && (double) $max < (double) $value) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('number_too_large');
}
if (isset($result['reason'][$name]) && ($id = $tag->get_id_option())) {
$result['idref'][$name] = $id;
}
return $result;
}
function wpcf7_quiz_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$name = $tag->name;
$answer = isset($_POST[$name]) ? wpcf7_canonicalize($_POST[$name]) : '';
$answer_hash = wp_hash($answer, 'wpcf7_quiz');
$expected_hash = isset($_POST['_wpcf7_quiz_answer_' . $name]) ? (string) $_POST['_wpcf7_quiz_answer_' . $name] : '';
if ($answer_hash != $expected_hash) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('quiz_answer_not_correct');
}
return $result;
}
function wpcf7_quiz_validation_filter($result, $tag)
{
$type = $tag['type'];
$name = $tag['name'];
$answer = wpcf7_canonicalize($_POST[$name]);
$answer_hash = wp_hash($answer, 'wpcf7_quiz');
$expected_hash = $_POST['_wpcf7_quiz_answer_' . $name];
if ($answer_hash != $expected_hash) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('quiz_answer_not_correct');
}
return $result;
}
function wpcf7_quiz_validation_filter($result, $tag)
{
$tag = new WPCF7_FormTag($tag);
$name = $tag->name;
$answer = isset($_POST[$name]) ? wpcf7_canonicalize($_POST[$name]) : '';
$answer = wp_unslash($answer);
$answer_hash = wp_hash($answer, 'wpcf7_quiz');
$expected_hash = isset($_POST['_wpcf7_quiz_answer_' . $name]) ? (string) $_POST['_wpcf7_quiz_answer_' . $name] : '';
if ($answer_hash != $expected_hash) {
$result->invalidate($tag, wpcf7_get_message('quiz_answer_not_correct'));
}
return $result;
}
function wpcf7_acceptance_validation_filter($result, $tag)
{
if (!wpcf7_acceptance_as_validation()) {
return $result;
}
$tag = new WPCF7_Shortcode($tag);
$name = $tag->name;
$value = !empty($_POST[$name]) ? 1 : 0;
$invert = $tag->has_option('invert');
if ($invert && $value || !$invert && !$value) {
$result->invalidate($tag, wpcf7_get_message('accept_terms'));
}
return $result;
}
function wpcf7_textarea_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$type = $tag->type;
$name = $tag->name;
$value = isset($_POST[$name]) ? (string) $_POST[$name] : '';
if ('textarea*' == $type) {
if ('' == $value) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_required');
}
}
return $result;
}
public function recaptcha_validation_filter($result, $tag)
{
global $wdm_recaptcha_settings_values;
$site_key = $wdm_recaptcha_settings_values->get_option('general_site_key');
$secret_key = $wdm_recaptcha_settings_values->get_option('general_secret_key');
//if site key and secret key are available, then validate captcha
if (!empty($site_key) && !empty($secret_key)) {
$tag = new WPCF7_Shortcode($tag);
$type = $tag->type;
$name = !empty($tag->name) ? $tag->name : 'recaptcha';
$recaptcha_value = isset($_POST['g-recaptcha-response']) ? (string) $_POST['g-recaptcha-response'] : '';
//cf7 4.1 replaced results array structure to object
$result_type = gettype($result);
if ($result_type === 'object') {
if (0 == strlen(trim($recaptcha_value))) {
//recaptcha is uncheked
$result->invalidate($tag, wpcf7_get_message('no_re_uncheked'));
} else {
$captcha_value = $this->check_recaptcha($recaptcha_value);
if (!$captcha_value) {
//google returned false
$result->invalidate($tag, wpcf7_get_message('no_re_bot_detected'));
}
}
} else {
if (0 == strlen(trim($recaptcha_value))) {
//recaptcha is uncheked
$result['valid'] = false;
$reason = array($name => wpcf7_get_message('no_re_uncheked'));
$result['reason'] = array_merge($result['reason'], $reason);
} else {
$captcha_value = $this->check_recaptcha($recaptcha_value);
if (!$captcha_value) {
//google returned false
$result['valid'] = false;
$reason = array($name => wpcf7_get_message('no_re_bot_detected'));
$result['reason'] = array_merge($result['reason'], $reason);
}
if ($captcha_value && true == $result['valid']) {
//reset captcha if form was submitted successfully
}
}
}
}
return $result;
}
function wpcf7_acceptance_validation_filter($result, $tag)
{
if (!wpcf7_acceptance_as_validation()) {
return $result;
}
$tag = new WPCF7_Shortcode($tag);
$name = $tag->name;
$value = !empty($_POST[$name]) ? 1 : 0;
$invert = $tag->has_option('invert');
if ($invert && $value || !$invert && !$value) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('accept_terms');
}
if (isset($result['reason'][$name]) && ($id = $tag->get_id_option())) {
$result['idref'][$name] = $id;
}
return $result;
}
function wpcf7_acceptance_validation_filter($result, $tag)
{
if (!wpcf7_acceptance_as_validation()) {
return $result;
}
$name = $tag['name'];
if (empty($name)) {
return $result;
}
$options = (array) $tag['options'];
$value = !empty($_POST[$name]) ? 1 : 0;
$invert = (bool) preg_grep('%^invert$%', $options);
if ($invert && $value || !$invert && !$value) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('accept_terms');
}
return $result;
}
function wpcf7_date_validation_filter($result, $tag)
{
$tag = new WPCF7_FormTag($tag);
$name = $tag->name;
$min = $tag->get_date_option('min');
$max = $tag->get_date_option('max');
$value = isset($_POST[$name]) ? trim(strtr((string) $_POST[$name], "\n", " ")) : '';
if ($tag->is_required() && '' == $value) {
$result->invalidate($tag, wpcf7_get_message('invalid_required'));
} elseif ('' != $value && !wpcf7_is_date($value)) {
$result->invalidate($tag, wpcf7_get_message('invalid_date'));
} elseif ('' != $value && !empty($min) && $value < $min) {
$result->invalidate($tag, wpcf7_get_message('date_too_early'));
} elseif ('' != $value && !empty($max) && $max < $value) {
$result->invalidate($tag, wpcf7_get_message('date_too_late'));
}
return $result;
}
function wpcf7_number_validation_filter($result, $tag)
{
$tag = new WPCF7_FormTag($tag);
$name = $tag->name;
$value = isset($_POST[$name]) ? trim(strtr((string) $_POST[$name], "\n", " ")) : '';
$min = $tag->get_option('min', 'signed_int', true);
$max = $tag->get_option('max', 'signed_int', true);
if ($tag->is_required() && '' == $value) {
$result->invalidate($tag, wpcf7_get_message('invalid_required'));
} elseif ('' != $value && !wpcf7_is_number($value)) {
$result->invalidate($tag, wpcf7_get_message('invalid_number'));
} elseif ('' != $value && '' != $min && (double) $value < (double) $min) {
$result->invalidate($tag, wpcf7_get_message('number_too_small'));
} elseif ('' != $value && '' != $max && (double) $max < (double) $value) {
$result->invalidate($tag, wpcf7_get_message('number_too_large'));
}
return $result;
}
function cf7ic_check_if_spam($result, $tag)
{
$type = $tag['type'];
$name = $tag['name'];
$value = $_POST[$name];
// Allow Contact Forms without [cf7ic] to send
if ($_POST['cf7ic_exists']) {
if (!empty($_POST['kc_honeypot']) || $_POST['kc_captcha'] != "kc_human") {
$result['valid'] = false;
$result['reason'] = array($name => wpcf7_get_message('spam'));
}
return $result;
}
// Allow Contact Forms without [cf7ic] to send
if ($_POST['cf7ic_exists'] != "true") {
return $result;
}
}
function wpcf7_mathcaptcha_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$name = $tag->name;
if (!is_admin() && isset($_POST[$name])) {
$cf7_version = get_option('wpcf7', '1.0.0');
if (is_array($cf7_version) && isset($cf7_version['version'])) {
$cf7_version = $cf7_version['version'];
}
if ($_POST[$name] !== '') {
$session_id = isset($_POST[$name . '-sn']) && $_POST[$name . '-sn'] !== '' ? Math_Captcha()->cookie_session->session_ids['multi'][$_POST[$name . '-sn']] : '';
if ($session_id !== '' && get_transient('cf7_' . $session_id) !== false) {
if (strcmp(get_transient('cf7_' . $session_id), sha1(AUTH_KEY . $_POST[$name] . $session_id, false)) !== 0) {
if (version_compare($cf7_version, '4.1.0', '>=')) {
$result->invalidate($tag, wpcf7_get_message('wrong_mathcaptcha'));
} else {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('wrong_mathcaptcha');
}
}
} else {
if (version_compare($cf7_version, '4.1.0', '>=')) {
$result->invalidate($tag, wpcf7_get_message('time_mathcaptcha'));
} else {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('time_mathcaptcha');
}
}
} else {
if (version_compare($cf7_version, '4.1.0', '>=')) {
$result->invalidate($tag, wpcf7_get_message('fill_mathcaptcha'));
} else {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('fill_mathcaptcha');
}
}
}
return $result;
}
function wpcf7_hashcash_validation_filter($result, $tag)
{
if (!class_exists('WP_Hashcash')) {
die("WP_Hashcash Class is not available.");
}
$instance = WP_Hashcash::get_instance();
$tag = new WPCF7_Shortcode($tag);
$hashcashid = $_POST['hashcashid'];
if (!$hashcashid) {
die("hashcashid value is not available.");
}
$type = $tag->type;
$name = $tag->name;
$op = wpcf7_hashcash_options($tag->options);
$hashcash_result = $instance->verify_hash($hashcashid, $op['complexity']);
if ($hashcash_result !== 'ok') {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('hashcash_error');
}
if (isset($result['reason'][$name]) && ($id = $tag->get_id_option())) {
$result['idref'][$name] = $id;
}
return $result;
}
function wpcf7_select_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$name = $tag->name;
if (isset($_POST[$name]) && is_array($_POST[$name])) {
foreach ($_POST[$name] as $key => $value) {
if ('' === $value) {
unset($_POST[$name][$key]);
}
}
}
$empty = !isset($_POST[$name]) || empty($_POST[$name]) && '0' !== $_POST[$name];
if ($tag->is_required() && $empty) {
$result->invalidate($tag, wpcf7_get_message('invalid_required'));
}
return $result;
}
function wpcf7_text_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$name = $tag->name;
$value = isset($_POST[$name]) ? trim(wp_unslash(strtr((string) $_POST[$name], "\n", " "))) : '';
if ('text*' == $tag->type) {
if ('' == $value) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_required');
}
}
if ('email' == $tag->basetype) {
if ($tag->is_required() && '' == $value) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_required');
} elseif ('' != $value && !wpcf7_is_email($value)) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_email');
}
}
if ('url' == $tag->basetype) {
if ($tag->is_required() && '' == $value) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_required');
} elseif ('' != $value && !wpcf7_is_url($value)) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_url');
}
}
if ('tel' == $tag->basetype) {
if ($tag->is_required() && '' == $value) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_required');
} elseif ('' != $value && !wpcf7_is_tel($value)) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_tel');
}
}
if (isset($result['reason'][$name]) && ($id = $tag->get_id_option())) {
$result['idref'][$name] = $id;
}
return $result;
}
function wpcf7_akismet_display_message($message, $status)
{
if ('spam' == $status && empty($message)) {
$message = wpcf7_get_message('akismet_says_spam');
}
return $message;
}
function wpcf7_file_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$name = $tag->name;
$id = $tag->get_id_option();
$file = isset($_FILES[$name]) ? $_FILES[$name] : null;
if ($file['error'] && UPLOAD_ERR_NO_FILE != $file['error']) {
$result->invalidate($tag, wpcf7_get_message('upload_failed_php_error'));
return $result;
}
if (empty($file['tmp_name']) && $tag->is_required()) {
$result->invalidate($tag, wpcf7_get_message('invalid_required'));
return $result;
}
if (!is_uploaded_file($file['tmp_name'])) {
return $result;
}
$allowed_file_types = array();
if ($file_types_a = $tag->get_option('filetypes')) {
foreach ($file_types_a as $file_types) {
$file_types = explode('|', $file_types);
foreach ($file_types as $file_type) {
$file_type = trim($file_type, '.');
$file_type = str_replace(array('.', '+', '*', '?'), array('\\.', '\\+', '\\*', '\\?'), $file_type);
$allowed_file_types[] = $file_type;
}
}
}
$allowed_file_types = array_unique($allowed_file_types);
$file_type_pattern = implode('|', $allowed_file_types);
$allowed_size = 1048576;
// default size 1 MB
if ($file_size_a = $tag->get_option('limit')) {
$limit_pattern = '/^([1-9][0-9]*)([kKmM]?[bB])?$/';
foreach ($file_size_a as $file_size) {
if (preg_match($limit_pattern, $file_size, $matches)) {
$allowed_size = (int) $matches[1];
if (!empty($matches[2])) {
$kbmb = strtolower($matches[2]);
if ('kb' == $kbmb) {
$allowed_size *= 1024;
} elseif ('mb' == $kbmb) {
$allowed_size *= 1024 * 1024;
}
}
break;
}
}
}
/* File type validation */
// Default file-type restriction
if ('' == $file_type_pattern) {
$file_type_pattern = 'jpg|jpeg|png|gif|pdf|doc|docx|ppt|pptx|odt|avi|ogg|m4a|mov|mp3|mp4|mpg|wav|wmv';
}
$file_type_pattern = trim($file_type_pattern, '|');
$file_type_pattern = '(' . $file_type_pattern . ')';
$file_type_pattern = '/\\.' . $file_type_pattern . '$/i';
if (!preg_match($file_type_pattern, $file['name'])) {
$result->invalidate($tag, wpcf7_get_message('upload_file_type_invalid'));
return $result;
}
/* File size validation */
if ($file['size'] > $allowed_size) {
$result->invalidate($tag, wpcf7_get_message('upload_file_too_large'));
return $result;
}
wpcf7_init_uploads();
// Confirm upload dir
$uploads_dir = wpcf7_upload_tmp_dir();
$uploads_dir = wpcf7_maybe_add_random_dir($uploads_dir);
$filename = $file['name'];
$filename = wpcf7_canonicalize($filename);
$filename = sanitize_file_name($filename);
$filename = wpcf7_antiscript_file_name($filename);
$filename = wp_unique_filename($uploads_dir, $filename);
$new_file = trailingslashit($uploads_dir) . $filename;
if (false === @move_uploaded_file($file['tmp_name'], $new_file)) {
$result->invalidate($tag, wpcf7_get_message('upload_failed'));
return $result;
}
// Make sure the uploaded file is only readable for the owner process
@chmod($new_file, 0400);
if ($submission = WPCF7_Submission::get_instance()) {
$submission->add_uploaded_file($name, $new_file);
}
return $result;
}
function wpcf7_captcha_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$type = $tag->type;
$name = $tag->name;
$captchac = '_wpcf7_captcha_challenge_' . $name;
$prefix = isset($_POST[$captchac]) ? (string) $_POST[$captchac] : '';
$response = isset($_POST[$name]) ? (string) $_POST[$name] : '';
if ($prefix) {
if (!wpcf7_check_captcha($prefix, $response)) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('captcha_not_match');
}
wpcf7_remove_captcha($prefix);
}
return $result;
}
function wpcf7_confirm_email_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$type = $tag->basetype;
$name = $tag->name;
$values = $tag->values;
$value = isset($_POST[$name]) ? trim(wp_unslash(strtr((string) $_POST[$name], "\n", " "))) : '';
if ('confirm_email' == $tag->basetype) {
if ($tag->is_required() && '' == $value) {
$result->invalidate($tag, wpcf7_get_message('invalid_required'));
} elseif ('' != $value && !wpcf7_is_email($value)) {
$result->invalidate($tag, wpcf7_get_message('invalid_email'));
} elseif ($value != $_POST['your-email']) {
$result->invalidate($tag, wpcf7_get_message('invalid_confirm_email'));
}
}
return $result;
}
/**
* Validate email domain.
*
* This is the validator function of [email]. Does robottrap_mx action on invalid email domain.
*
* @param object $result WPCF7 result object.
* @param string $tag Source of the tag.
*
* @return object The modified WPCF7 object.
*/
function wpcf7_robottrap_domain_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$name = $tag->name;
$value = isset($_POST[$name]) ? trim(wp_unslash(sanitize_text_field((string) $_POST[$name]))) : '';
if (!$result->is_valid($name) || '' === $value) {
return $result;
}
$domain = sanitize_text_field(substr(strrchr($value, '@'), 1));
if (empty($domain) || !checkdnsrr($domain, 'MX')) {
/**
* Counteraction for empty or MX-less domain part of email addresses
*
* Usually this is a spammer robot.
*
* @param string $domain Email domain.
*/
do_action('robottrap_mx', $domain);
$result->invalidate($tag, wpcf7_get_message('spam'));
}
return $result;
}
function wpcf7_captcha_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$type = $tag->type;
$name = $tag->name;
$captchac = '_wpcf7_captcha_challenge_' . $name;
$prefix = isset($_POST[$captchac]) ? (string) $_POST[$captchac] : '';
$response = isset($_POST[$name]) ? (string) $_POST[$name] : '';
$response = wpcf7_canonicalize($response);
if (0 == strlen($prefix) || !wpcf7_check_captcha($prefix, $response)) {
$result->invalidate($tag, wpcf7_get_message('captcha_not_match'));
}
if (0 != strlen($prefix)) {
wpcf7_remove_captcha($prefix);
}
return $result;
}
function wpcf7_file_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$name = $tag->name;
$file = isset($_FILES[$name]) ? $_FILES[$name] : null;
if ($file['error'] && UPLOAD_ERR_NO_FILE != $file['error']) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('upload_failed_php_error');
return $result;
}
if (empty($file['tmp_name']) && $tag->is_required()) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_required');
return $result;
}
if (!is_uploaded_file($file['tmp_name'])) {
return $result;
}
$allowed_file_types = array();
if ($file_types_a = $tag->get_option('filetypes')) {
foreach ($file_types_a as $file_types) {
$file_types = explode('|', $file_types);
foreach ($file_types as $file_type) {
$file_type = trim($file_type, '.');
$file_type = str_replace(array('.', '+', '*', '?'), array('\\.', '\\+', '\\*', '\\?'), $file_type);
$allowed_file_types[] = $file_type;
}
}
}
$allowed_file_types = array_unique($allowed_file_types);
$file_type_pattern = implode('|', $allowed_file_types);
$allowed_size = 1048576;
// default size 1 MB
if ($file_size_a = $tag->get_option('limit')) {
$limit_pattern = '/^([1-9][0-9]*)([kKmM]?[bB])?$/';
foreach ($file_size_a as $file_size) {
if (preg_match($limit_pattern, $file_size, $matches)) {
$allowed_size = (int) $matches[1];
if (!empty($matches[2])) {
$kbmb = strtolower($matches[2]);
if ('kb' == $kbmb) {
$allowed_size *= 1024;
} elseif ('mb' == $kbmb) {
$allowed_size *= 1024 * 1024;
}
}
break;
}
}
}
/* File type validation */
// Default file-type restriction
if ('' == $file_type_pattern) {
$file_type_pattern = 'jpg|jpeg|png|gif|pdf|doc|docx|ppt|pptx|odt|avi|ogg|m4a|mov|mp3|mp4|mpg|wav|wmv';
}
$file_type_pattern = trim($file_type_pattern, '|');
$file_type_pattern = '(' . $file_type_pattern . ')';
$file_type_pattern = '/\\.' . $file_type_pattern . '$/i';
if (!preg_match($file_type_pattern, $file['name'])) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('upload_file_type_invalid');
return $result;
}
/* File size validation */
if ($file['size'] > $allowed_size) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('upload_file_too_large');
return $result;
}
$uploads_dir = wpcf7_upload_tmp_dir();
wpcf7_init_uploads();
// Confirm upload dir
$filename = $file['name'];
// If you get script file, it's a danger. Make it TXT file.
if (preg_match('/\\.(php|pl|py|rb|cgi)\\d?$/', $filename)) {
$filename .= '.txt';
}
$filename = wp_unique_filename($uploads_dir, $filename);
$new_file = trailingslashit($uploads_dir) . $filename;
if (false === @move_uploaded_file($file['tmp_name'], $new_file)) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('upload_failed');
return $result;
}
// Make sure the uploaded file is only readable for the owner process
@chmod($new_file, 0400);
if ($contact_form = wpcf7_get_current_contact_form()) {
$contact_form->uploaded_files[$name] = $new_file;
if (empty($contact_form->posted_data[$name])) {
$contact_form->posted_data[$name] = $filename;
}
}
return $result;
}
function wpcf7_select_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$name = $tag->name;
if (isset($_POST[$name]) && is_array($_POST[$name])) {
foreach ($_POST[$name] as $key => $value) {
if ('' === $value) {
unset($_POST[$name][$key]);
}
}
}
if ($tag->is_required()) {
if (!isset($_POST[$name]) || empty($_POST[$name]) && '0' !== $_POST[$name]) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_required');
}
}
if (isset($result['reason'][$name]) && ($id = $tag->get_id_option())) {
$result['idref'][$name] = $id;
}
return $result;
}
function wpcf7_text_validation_filter($result, $tag)
{
$type = $tag['type'];
$name = $tag['name'];
$_POST[$name] = trim(strtr((string) $_POST[$name], "\n", " "));
if ('text*' == $type) {
if ('' == $_POST[$name]) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_required');
}
}
if ('email' == $type || 'email*' == $type) {
if ('email*' == $type && '' == $_POST[$name]) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_required');
} elseif ('' != $_POST[$name] && !is_email($_POST[$name])) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_email');
}
}
return $result;
}
function wpcf7_select_validation_filter($result, $tag)
{
$type = $tag['type'];
$name = $tag['name'];
$values = $tag['values'];
if (is_array($_POST[$name])) {
foreach ($_POST[$name] as $key => $value) {
$value = stripslashes($value);
if (!in_array($value, (array) $values)) {
// Not in given choices.
unset($_POST[$name][$key]);
}
}
} else {
$value = stripslashes($_POST[$name]);
if (!in_array($value, (array) $values)) {
// Not in given choices.
$_POST[$name] = '';
}
}
if ('select*' == $type) {
if (empty($_POST[$name]) || !is_array($_POST[$name]) && '---' == $_POST[$name] || is_array($_POST[$name]) && 1 == count($_POST[$name]) && '---' == $_POST[$name][0]) {
$result['valid'] = false;
$result['reason'][$name] = wpcf7_get_message('invalid_required');
}
}
return $result;
}
function wpcf7_textarea_validation_filter($result, $tag)
{
$tag = new WPCF7_Shortcode($tag);
$type = $tag->type;
$name = $tag->name;
$value = isset($_POST[$name]) ? (string) $_POST[$name] : '';
if ($tag->is_required() && '' == $value) {
$result->invalidate($tag, wpcf7_get_message('invalid_required'));
}
if (!empty($value)) {
$maxlength = $tag->get_maxlength_option();
$minlength = $tag->get_minlength_option();
if ($maxlength && $minlength && $maxlength < $minlength) {
$maxlength = $minlength = null;
}
$code_units = wpcf7_count_code_units($value);
if (false !== $code_units) {
if ($maxlength && $maxlength < $code_units) {
$result->invalidate($tag, wpcf7_get_message('invalid_too_long'));
} elseif ($minlength && $code_units < $minlength) {
$result->invalidate($tag, wpcf7_get_message('invalid_too_short'));
}
}
}
return $result;
}