function wpcf7_textarea_validation_filter($result, $tag)
{
$tag = new WPCF7_FormTag($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;
}
$code_units = wpcf7_count_code_units(stripslashes($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 $result;
}
function wpcf7_acceptance_validation_filter($result, $tag)
{
if (!wpcf7_acceptance_as_validation()) {
return $result;
}
$tag = new WPCF7_FormTag($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 $result;
}
function wpcf7_text_validation_filter($result, $tag)
{
$tag = new WPCF7_FormTag($tag);
$name = $tag->name;
$value = isset($_POST[$name]) ? trim(wp_unslash(strtr((string) $_POST[$name], "\n", " "))) : '';
if ('text' == $tag->basetype) {
if ($tag->is_required() && '' == $value) {
$result->invalidate($tag, wpcf7_get_message('invalid_required'));
}
}
if ('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'));
}
}
if ('url' == $tag->basetype) {
if ($tag->is_required() && '' == $value) {
$result->invalidate($tag, wpcf7_get_message('invalid_required'));
} elseif ('' != $value && !wpcf7_is_url($value)) {
$result->invalidate($tag, wpcf7_get_message('invalid_url'));
}
}
if ('tel' == $tag->basetype) {
if ($tag->is_required() && '' == $value) {
$result->invalidate($tag, wpcf7_get_message('invalid_required'));
} elseif ('' != $value && !wpcf7_is_tel($value)) {
$result->invalidate($tag, wpcf7_get_message('invalid_tel'));
}
}
if (!empty($value)) {
$maxlength = $tag->get_maxlength_option();
$minlength = $tag->get_minlength_option();
if ($maxlength && $minlength && $maxlength < $minlength) {
$maxlength = $minlength = null;
}
$code_units = wpcf7_count_code_units(stripslashes($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 $result;
}
function wpcf7_date_validation_filter($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 $result;
}
function wpcf7_submit_form_tag_handler($tag)
{
$tag = new WPCF7_FormTag($tag);
$class = wpcf7_form_controls_class($tag->type);
$atts = array();
$atts['class'] = $tag->get_class_option($class);
$atts['id'] = $tag->get_id_option();
$atts['tabindex'] = $tag->get_option('tabindex', 'int', true);
$value = isset($tag->values[0]) ? $tag->values[0] : '';
if (empty($value)) {
$value = __('Send', 'contact-form-7');
}
$atts['type'] = 'submit';
$atts['value'] = $value;
$atts = wpcf7_format_atts($atts);
$html = sprintf('<input %1$s />', $atts);
return $html;
}
function wpcf7_hidden_form_tag_handler($tag)
{
$tag = new WPCF7_FormTag($tag);
if (empty($tag->name)) {
return '';
}
$atts = array();
$class = wpcf7_form_controls_class($tag->type);
$atts['class'] = $tag->get_class_option($class);
$atts['id'] = $tag->get_id_option();
$value = (string) reset($tag->values);
$value = $tag->get_default_option($value);
$atts['value'] = $value;
$atts['type'] = 'hidden';
$atts['name'] = $tag->name;
$atts = wpcf7_format_atts($atts);
$html = sprintf('<input %s />', $atts);
return $html;
}
function wpcf7_count_form_tag_handler($tag)
{
$tag = new WPCF7_FormTag($tag);
if (empty($tag->name)) {
return '';
}
$targets = wpcf7_scan_form_tags(array('name' => $tag->name));
$maxlength = $minlength = null;
while ($targets) {
$target = array_shift($targets);
$target = new WPCF7_FormTag($target);
if ('count' != $target->type) {
$maxlength = $target->get_maxlength_option();
$minlength = $target->get_minlength_option();
break;
}
}
if ($maxlength && $minlength && $maxlength < $minlength) {
$maxlength = $minlength = null;
}
if ($tag->has_option('down')) {
$value = (int) $maxlength;
$class = 'wpcf7-character-count down';
} else {
$value = '0';
$class = 'wpcf7-character-count up';
}
$atts = array();
$atts['id'] = $tag->get_id_option();
$atts['class'] = $tag->get_class_option($class);
$atts['data-target-name'] = $tag->name;
$atts['data-starting-value'] = $value;
$atts['data-current-value'] = $value;
$atts['data-maximum-value'] = $maxlength;
$atts['data-minimum-value'] = $minlength;
$atts = wpcf7_format_atts($atts);
$html = sprintf('<span %1$s>%2$s</span>', $atts, $value);
return $html;
}
function wpcf7_akismet_submitted_params()
{
$params = array('author' => '', 'author_email' => '', 'author_url' => '', 'content' => '');
$has_akismet_option = false;
foreach ((array) $_POST as $key => $val) {
if ('_wpcf7' == substr($key, 0, 6) || '_wpnonce' == $key) {
continue;
}
if (is_array($val)) {
$val = implode(', ', wpcf7_array_flatten($val));
}
$val = trim($val);
if (0 == strlen($val)) {
continue;
}
if ($tags = wpcf7_scan_form_tags(array('name' => $key))) {
$tag = $tags[0];
$tag = new WPCF7_FormTag($tag);
$akismet = $tag->get_option('akismet', '(author|author_email|author_url)', true);
if ($akismet) {
$has_akismet_option = true;
if ('author' == $akismet) {
$params[$akismet] = trim($params[$akismet] . ' ' . $val);
} elseif ('' == $params[$akismet]) {
$params[$akismet] = $val;
}
}
}
$params['content'] .= "\n\n" . $val;
}
if (!$has_akismet_option) {
return false;
}
$params['content'] = trim($params['content']);
return $params;
}
function wpcf7_quiz_form_tag_handler($tag)
{
$tag = new WPCF7_FormTag($tag);
if (empty($tag->name)) {
return '';
}
$validation_error = wpcf7_get_validation_error($tag->name);
$class = wpcf7_form_controls_class($tag->type);
if ($validation_error) {
$class .= ' wpcf7-not-valid';
}
$atts = array();
$atts['size'] = $tag->get_size_option('40');
$atts['maxlength'] = $tag->get_maxlength_option();
$atts['minlength'] = $tag->get_minlength_option();
if ($atts['maxlength'] && $atts['minlength'] && $atts['maxlength'] < $atts['minlength']) {
unset($atts['maxlength'], $atts['minlength']);
}
$atts['class'] = $tag->get_class_option($class);
$atts['id'] = $tag->get_id_option();
$atts['tabindex'] = $tag->get_option('tabindex', 'int', true);
$atts['autocomplete'] = 'off';
$atts['aria-required'] = 'true';
$atts['aria-invalid'] = $validation_error ? 'true' : 'false';
$pipes = $tag->pipes;
if ($pipes instanceof WPCF7_Pipes && !$pipes->zero()) {
$pipe = $pipes->random_pipe();
$question = $pipe->before;
$answer = $pipe->after;
} else {
// default quiz
$question = '1+1=?';
$answer = '2';
}
$answer = wpcf7_canonicalize($answer);
$atts['type'] = 'text';
$atts['name'] = $tag->name;
$atts = wpcf7_format_atts($atts);
$html = sprintf('<span class="wpcf7-form-control-wrap %1$s"><label><span class="wpcf7-quiz-label">%2$s</span> <input %3$s /></label><input type="hidden" name="_wpcf7_quiz_answer_%4$s" value="%5$s" />%6$s</span>', sanitize_html_class($tag->name), esc_html($question), $atts, $tag->name, wp_hash($answer, 'wpcf7_quiz'), $validation_error);
return $html;
}
function wpcf7_select_validation_filter($result, $tag)
{
$tag = new WPCF7_FormTag($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 $result;
}
function wpcf7_checkbox_posted_data($posted_data)
{
$tags = wpcf7_scan_form_tags(array('type' => array('checkbox', 'checkbox*', 'radio')));
if (empty($tags)) {
return $posted_data;
}
foreach ($tags as $tag) {
$tag = new WPCF7_FormTag($tag);
if (!isset($posted_data[$tag->name])) {
continue;
}
$posted_items = (array) $posted_data[$tag->name];
if ($tag->has_option('free_text')) {
if (WPCF7_USE_PIPE) {
$values = $tag->pipes->collect_afters();
} else {
$values = $tag->values;
}
$last = array_pop($values);
$last = html_entity_decode($last, ENT_QUOTES, 'UTF-8');
if (in_array($last, $posted_items)) {
$posted_items = array_diff($posted_items, array($last));
$free_text_name = sprintf('_wpcf7_%1$s_free_text_%2$s', $tag->basetype, $tag->name);
$free_text = $posted_data[$free_text_name];
if (!empty($free_text)) {
$posted_items[] = trim($last . ' ' . $free_text);
} else {
$posted_items[] = $last;
}
}
}
$posted_data[$tag->name] = $posted_items;
}
return $posted_data;
}
function wpcf7_file_validation_filter($result, $tag)
{
$tag = new WPCF7_FormTag($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 $result;
}
public function replace_mail_tags_with_minimum_input($matches)
{
// allow [[foo]] syntax for escaping a tag
if ($matches[1] == '[' && $matches[4] == ']') {
return substr($matches[0], 1, -1);
}
$tag = $matches[0];
$tagname = $matches[2];
$values = $matches[3];
if (!empty($values)) {
preg_match_all('/"[^"]*"|\'[^\']*\'/', $values, $matches);
$values = wpcf7_strip_quote_deep($matches[0]);
}
$do_not_heat = false;
if (preg_match('/^_raw_(.+)$/', $tagname, $matches)) {
$tagname = trim($matches[1]);
$do_not_heat = true;
}
$format = '';
if (preg_match('/^_format_(.+)$/', $tagname, $matches)) {
$tagname = trim($matches[1]);
$format = $values[0];
}
$example_email = '*****@*****.**';
$example_text = 'example';
$example_blank = '';
$form_tags = $this->contact_form->scan_form_tags(array('name' => $tagname));
if ($form_tags) {
$form_tag = new WPCF7_FormTag($form_tags[0]);
$is_required = $form_tag->is_required() || 'radio' == $form_tag->type;
if (!$is_required) {
return $example_blank;
}
$is_selectable = in_array($form_tag->basetype, array('radio', 'checkbox', 'select'));
if ($is_selectable) {
if ($form_tag->pipes instanceof WPCF7_Pipes) {
if ($do_not_heat) {
$before_pipes = $form_tag->pipes->collect_befores();
$last_item = array_pop($before_pipes);
} else {
$after_pipes = $form_tag->pipes->collect_afters();
$last_item = array_pop($after_pipes);
}
} else {
$last_item = array_pop($form_tag->values);
}
if ($last_item && wpcf7_is_mailbox_list($last_item)) {
return $example_email;
} else {
return $example_text;
}
}
if ('email' == $form_tag->basetype) {
return $example_email;
} else {
return $example_text;
}
} else {
$tagname = preg_replace('/^wpcf7\\./', '_', $tagname);
// for back-compat
if ('_post_author_email' == $tagname) {
return $example_email;
} elseif ('_' == substr($tagname, 0, 1)) {
// maybe special mail tag
return $example_text;
}
}
return $tag;
}
function wpcf7_captcha_form_tag_handler($tag)
{
$tag = new WPCF7_FormTag($tag);
if ('captchac' == $tag->type && !class_exists('ReallySimpleCaptcha')) {
return '<em>' . __('To use CAPTCHA, you need <a href="http://wordpress.org/extend/plugins/really-simple-captcha/">Really Simple CAPTCHA</a> plugin installed.', 'contact-form-7') . '</em>';
}
if (empty($tag->name)) {
return '';
}
$validation_error = wpcf7_get_validation_error($tag->name);
$class = wpcf7_form_controls_class($tag->type);
if ('captchac' == $tag->type) {
// CAPTCHA-Challenge (image)
$class .= ' wpcf7-captcha-' . $tag->name;
$atts = array();
$atts['class'] = $tag->get_class_option($class);
$atts['id'] = $tag->get_id_option();
$op = array('img_size' => array(72, 24), 'base' => array(6, 18), 'font_size' => 14, 'font_char_width' => 15);
$op = array_merge($op, wpcf7_captchac_options($tag->options));
if (!($filename = wpcf7_generate_captcha($op))) {
return '';
}
if (!empty($op['img_size'])) {
if (isset($op['img_size'][0])) {
$atts['width'] = $op['img_size'][0];
}
if (isset($op['img_size'][1])) {
$atts['height'] = $op['img_size'][1];
}
}
$atts['alt'] = 'captcha';
$atts['src'] = wpcf7_captcha_url($filename);
$atts = wpcf7_format_atts($atts);
$prefix = substr($filename, 0, strrpos($filename, '.'));
$html = sprintf('<input type="hidden" name="_wpcf7_captcha_challenge_%1$s" value="%2$s" /><img %3$s />', $tag->name, $prefix, $atts);
return $html;
} elseif ('captchar' == $tag->type) {
// CAPTCHA-Response (input)
if ($validation_error) {
$class .= ' wpcf7-not-valid';
}
$atts = array();
$atts['size'] = $tag->get_size_option('40');
$atts['maxlength'] = $tag->get_maxlength_option();
$atts['minlength'] = $tag->get_minlength_option();
if ($atts['maxlength'] && $atts['minlength'] && $atts['maxlength'] < $atts['minlength']) {
unset($atts['maxlength'], $atts['minlength']);
}
$atts['class'] = $tag->get_class_option($class);
$atts['id'] = $tag->get_id_option();
$atts['tabindex'] = $tag->get_option('tabindex', 'int', true);
$atts['autocomplete'] = 'off';
$atts['aria-invalid'] = $validation_error ? 'true' : 'false';
$value = (string) reset($tag->values);
if (wpcf7_is_posted()) {
$value = '';
}
if ($tag->has_option('placeholder') || $tag->has_option('watermark')) {
$atts['placeholder'] = $value;
$value = '';
}
$atts['value'] = $value;
$atts['type'] = 'text';
$atts['name'] = $tag->name;
$atts = wpcf7_format_atts($atts);
$html = sprintf('<span class="wpcf7-form-control-wrap %1$s"><input %2$s />%3$s</span>', sanitize_html_class($tag->name), $atts, $validation_error);
return $html;
}
}
function wpcf7_recaptcha_form_tag_handler($tag)
{
wp_enqueue_script('google-recaptcha');
$tag = new WPCF7_FormTag($tag);
$atts = array();
$recaptcha = WPCF7_RECAPTCHA::get_instance();
$atts['data-sitekey'] = $recaptcha->get_sitekey();
$atts['data-theme'] = $tag->get_option('theme', '(dark|light)', true);
$atts['data-type'] = $tag->get_option('type', '(audio|image)', true);
$atts['data-size'] = $tag->get_option('size', '(compact|normal)', true);
$atts['data-tabindex'] = $tag->get_option('tabindex', 'int', true);
$atts['data-callback'] = $tag->get_option('callback', '', true);
$atts['data-expired-callback'] = $tag->get_option('expired_callback', '', true);
$atts['class'] = $tag->get_class_option(wpcf7_form_controls_class($tag->type, 'g-recaptcha'));
$atts['id'] = $tag->get_id_option();
$html = sprintf('<div %1$s></div>', wpcf7_format_atts($atts));
$html .= wpcf7_recaptcha_noscript(array('sitekey' => $atts['data-sitekey']));
$html = sprintf('<div class="wpcf7-form-control-wrap">%s</div>', $html);
return $html;
}
public function __construct($tag)
{
wpcf7_deprecated_function('WPCF7_Shortcode', '4.6', 'WPCF7_FormTag');
parent::__construct($tag);
}
