function _protected_submissions_validate in Protected Submissions 8
Same name and namespace in other branches
- 7 protected_submissions.module \_protected_submissions_validate()
Validate the submitted text fields.
1 string reference to '_protected_submissions_validate'
- protected_submissions_form_alter in ./
protected_submissions.module - Implements hook_form_alter().
File
- ./
protected_submissions.module, line 71 - Protected Submissions module.
Code
function _protected_submissions_validate($form, &$form_state) {
$check_text = NULL;
// Get user defined reject message.
$reject_message = \Drupal::config('protected_submissions.settings')
->get('protected_submissions.reject_message');
// Get submitted values.
$values = $form_state
->getValues();
// Concatenate text field values.
foreach ($values as $key => $value) {
$form_element = FormElementHelper::getElementByName($key, $form);
if (!empty($form_element) && !empty($form_element['#type'])) {
// Webforms.
if ($form_element['#type'] == 'textfield' || $form_element['#type'] == 'textarea') {
$check_text .= ' ' . $values[$key];
}
}
elseif (isset($form[$key])) {
// Nodes, comments, user profile and contact forms.
if (isset($form[$key]['widget']['0']['value']['#type'])) {
if ($form[$key]['widget']['0']['value']['#type'] == 'textfield' || $form[$key]['widget']['0']['value']['#type'] == 'textarea') {
// Find all values.
foreach ($values[$key] as $var) {
if (is_array($var)) {
foreach ($var as $key => $value) {
if ($key == 'value' && !empty($value)) {
$check_text .= ' ' . $value;
}
}
}
}
}
}
}
}
/*
* Check if random UTF characters from the text belong to allowed
* language scripts.
*/
$stripped = preg_replace('/[0-9]+/', '', $check_text);
$stripped = preg_replace('/[[:punct:]]+/', '', trim($stripped));
$stripped = preg_replace('/\\s+/', '', $stripped);
// Get user defined language script.
$allowed_scripts_raw = \Drupal::config('protected_submissions.settings')
->get('protected_submissions.allowed_scripts');
// Clean up the array.
foreach ($allowed_scripts_raw as $key => $value) {
if ($value != FALSE) {
$allowed_scripts[] = $value;
}
}
// Only some languages work with the method
// $match = preg_match("/\p{$lang_script}/u", $randomChar); PCRE
// as explained on https://www.php.net/manual/en/regexp.reference.unicode.php,
// so we use the Unicode Character Ranges per http://www.unicode.org/charts/
$language_scripts = [
'Adlam' => [
'1E900 - 1E95F',
],
'Ahom' => [
'11700 - 1173F',
],
'Anatolian Hieroglyphs' => [
'14400 - 1467F',
],
'Arabic' => [
'0600 - 06FF',
'0750 - 077F',
'08A0 - 08FF',
'FB50 - FDFF',
'FE70 - FEFF',
'10A80 - 10A9F',
'10A60 - 10A7F',
],
'Aramaic' => [
'10840 - 1085F',
],
'Armenian' => [
'0530 - 058F',
'FB00 - FB4F',
],
'Avestan' => [
'10B00 - 10B3F',
],
'Balinese' => [
'1B00 - 1B7F',
],
'Bamum' => [
'A6A0 - A6FF',
'16800 - 16A3F',
],
'Bassa Vah' => [
'16AD0 - 16AFF',
],
'Batak' => [
'1BC0 - 1BFF',
],
'Bengali and Assamese' => [
'0980 - 09FF',
],
'Bhaiksuki' => [
'11C00 - 11C6F',
],
'Bopomofo' => [
'3100 - 312F',
'31A0 - 31BF',
],
'Brahmi' => [
'11000 - 1107F',
],
'Buginese' => [
'1A00 - 1A1F',
],
'Buhid' => [
'1740 - 175F',
],
'Canadian Aboriginal' => [
'1400 - 167F',
'18B0 - 18FF',
],
'Carian' => [
'102A0 - 102DF',
],
'Caucasian Albanian' => [
'10530 - 1056F',
],
'Chakma' => [
'11100 - 1114F',
],
'Cham' => [
'AA00 - AA5F',
],
'Cherokee' => [
'13A0 - 13FF',
'AB70 - ABBF',
],
'Chorasmian' => [
'10FB0 - 10FDF',
],
'CJK' => [
'2E80 - 2EFF',
'2F00 - 2FDF',
'2FF0 - 2FFF',
'3000 - 303F',
'31C0 - 31EF',
'3200 - 32FF',
'3300 - 33FF',
'3400 - 4DBF',
'4E00 - 9FFC',
'F900 - FAFF',
'FE30 - FE4F',
'20000 - 2A6DD',
'2A700 - 2B734',
'2B740 - 2B81D',
'2B820 - 2CEA1',
'2CEB0 - 2EBE0',
'2F800 - 2FA1F',
'30000 - 3134A',
],
'Coptic' => [
'2C80 - 2CFF',
'0370 - 03FF',
'102E0 - 102FF',
],
'Cuneiform' => [
'12000 - 123FF',
'12400 - 1247F',
'12480 - 1254F',
'103A0 - 103DF',
'10380 - 1039F',
],
'Currency Symbols' => [
'20A0 - 20CF',
],
'Cypriot Syllabary' => [
'10800 - 1083F',
],
'Cyrillic' => [
'0400 - 04FF',
'0500 - 052F',
'2DE0 - 2DFF',
'1C80 - 1C8F',
],
'Deseret' => [
'10400 - 1044F',
],
'Devanagari' => [
'0900 - 097F',
'A8E0 - A8FF',
],
'Dives Akuru' => [
'11900 - 1195F',
],
'Dogra' => [
'11800 - 1184F',
],
'Egyptian Hieroglyphs' => [
'13000 - 1342F',
'13430 - 1343F',
],
'Elbasan' => [
'10500 - 1052F',
],
'Elymaic' => [
'10FE0 - 10FFF',
],
'Ethiopic' => [
'1200 - 137F',
'1380 - 139F',
'2D80 - 2DDF',
'AB00 - AB2F',
],
'Georgian' => [
'10A0 - 10FF',
'1C90 - 1CBF',
'2D00 - 2D2F',
],
'Glagolitic' => [
'2C00 - 2C5F',
'1E000 - 1E02F',
],
'Gothic' => [
'10330 - 1034F',
],
'Grantha' => [
'11300 - 1137F',
],
'Greek' => [
'0370 - 03FF',
'1F00 - 1FFF',
'10140 - 1018F',
],
'Gujarati' => [
'0A80 - 0AFF',
],
'Gunjala Gondi' => [
'11D60 - 11DAF',
],
'Gurmukhi' => [
'0A00 - 0A7F',
],
'Hangul Jamo' => [
'1100 - 11FF',
'A960 - A97F',
'D7B0 - D7FF',
'3130 - 318F',
'FF00 - FFEF',
],
'Hangul Syllables' => [
'AC00 - D7AF',
],
'Hanifi Rohingya' => [
'10D00 - 10D3F',
],
'Hanunoo' => [
'1720 - 173F',
],
'Hatran' => [
'108E0 - 108FF',
],
'Hebrew' => [
'0590 - 05FF',
'FB00 - FB4F',
],
'Hiragana' => [
'3040 - 309F',
],
'Javanese' => [
'A980 - A9DF',
],
'Kaithi' => [
'11080 - 110CF',
],
'Kana' => [
'1B100 - 1B12F',
'1B000 - 1B0FF',
'1B130 - 1B16F',
],
'Kanbun' => [
'3190 - 319F',
],
'Kannada' => [
'0C80 - 0CFF',
],
'Katakana' => [
'30A0 - 30FF',
'31F0 - 31FF',
'FF00 - FFEF',
],
'Kayah Li' => [
'A900 - A92F',
],
'Kharoshthi' => [
'10A00 - 10A5F',
],
'Khitan Small Script' => [
'18B00 - 18CFF',
],
'Khmer' => [
'1780 - 17FF',
'19E0 - 19FF',
],
'Khojki' => [
'11200 - 1124F',
],
'Khudawadi' => [
'112B0 - 112FF',
],
'Lao' => [
'0E80 - 0EFF',
],
'Latin' => [
'0000 - 007F',
'0080 - 00FF',
'0100 - 017F',
'0180 - 024F',
'0250 - 02AF',
'02B0 - 02FF',
'1D00 - 1D7F',
'1D80 - 1DBF',
'1E00 - 1EFF',
'2070 - 209F',
'2100 - 214F',
'2150 - 218F',
'2C60 - 2C7F',
'A720 - A7FF',
'AB30 - AB6F',
'FB00 - FB4F',
'FF00 - FFEF',
'2000 - 206F',
],
'Lepcha' => [
'1C00 - 1C4F',
],
'Limbu' => [
'1900 - 194F',
],
'Lisu' => [
'A4D0 - A4FF',
'11FB0 - 11FBF',
],
'Lycian' => [
'10280 - 1029F',
],
'Lydian' => [
'10920 - 1093F',
],
'Mahajani' => [
'11150 - 1117F',
],
'Makasar' => [
'11EE0 - 11EFF',
],
'Malayalam' => [
'0D00 - 0D7F',
],
'Mandaic' => [
'0840 - 085F',
],
'Manichaean' => [
'10AC0 - 10AFF',
],
'Marchen' => [
'11C70 - 11CBF',
],
'Masaram Gondi' => [
'11D00 - 11D5F',
],
'Medefaidrin' => [
'16E40 - 16E9F',
],
'Meetei Mayek' => [
'ABC0 - ABFF',
'AAE0 - AAFF',
],
'Mende Kikaku' => [
'1E800 - 1E8DF',
],
'Meroitic' => [
'109A0 - 109FF',
'10980 - 1099F',
],
'Miao' => [
'16F00 - 16F9F',
],
'Modi' => [
'11600 - 1165F',
],
'Modifier Letters' => [
'A700 - A71F',
'02B0 - 02FF',
],
'Mongolian' => [
'1800 - 18AF',
'11660 - 1167F',
],
'Mro' => [
'16A40 - 16A6F',
],
'Myanmar' => [
'1000 - 109F',
'AA60 - AA7F',
'A9E0 - A9FF',
],
'Multani' => [
'11280 - 112AF',
],
'Nabataean' => [
'10880 - 108AF',
],
'Nandinagari' => [
'119A0 - 119FF',
],
'New Tai Lue' => [
'1980 - 19DF',
],
'Newa' => [
'11400 - 1147F',
],
'Nko' => [
'07C0 - 07FF',
],
'Nushu' => [
'1B170 - 1B2FF',
],
'Nyiakeng Puachue Hmong' => [
'1E100 - 1E14F',
],
'Ogham' => [
'1680 - 169F',
],
'Ol Chiki' => [
'1C50 - 1C7F',
],
'Old Hungarian' => [
'10C80 - 10CFF',
],
'Old Italic' => [
'10300 - 1032F',
],
'Old Permic' => [
'10350 - 1037F',
],
'Old Persian' => [
'103A0 - 103D',
],
'Old Sogdian' => [
'10F00 - 10F2F',
],
'Old Turkic' => [
'10C00 - 10C4F',
],
'Oriya' => [
'0B00 - 0B7F',
],
'Osage' => [
'104B0 - 104FF',
],
'Osmanya' => [
'10480 - 104AF',
],
'Pahawh Hmong' => [
'16B00 - 16B8F',
],
'Pahlavi' => [
'10B60 - 10B7F',
'10B80 - 10BAF',
],
'Palmyrene' => [
'10860 - 1087F',
],
'Parthian' => [
'10B40 - 10B5F',
],
'Pau Cin Hau' => [
'11AC0 - 11AFF',
],
'Phags Pa' => [
'A840 - A87F',
],
'Phoenician' => [
'10900 - 1091F',
],
'Rejang' => [
'A930 - A95F',
],
'Runic' => [
'16A0 - 16FF',
],
'Samaritan' => [
'0800 - 083F',
],
'Saurashtra' => [
'A880 - A8DF',
],
'Sharada' => [
'11180 - 111DF',
],
'Shavian' => [
'10450 - 1047F',
],
'Siddham' => [
'11580 - 115FF',
],
'Sinhala' => [
'0D80 - 0DFF',
'111E0 - 111FF',
],
'Sogdian' => [
'10F30 - 10F6F',
],
'Sora Sompeng' => [
'110D0 - 110FF',
],
'Soyombo' => [
'11A50 - 11AAF',
],
'Sundanese' => [
'1B80 - 1BBF',
'1CC0 - 1CCF',
],
'Superscripts and Subscripts' => [
'2070 - 209F',
],
'Syloti Nagri' => [
'A800 - A82F',
],
'Syriac' => [
'0700 - 074F',
'0860 - 086F',
],
'Tagalog' => [
'1700 - 171F',
],
'Tagbanwa' => [
'1760 - 177F',
],
'Tai Le' => [
'1950 - 197F',
],
'Tai Tham' => [
'1A20 - 1AAF',
],
'Tai Viet' => [
'AA80 - AADF',
],
'Takri' => [
'11680 - 116CF',
],
'Tamil' => [
'0B80 - 0BFF',
'11FC0 - 11FFF',
],
'Tangut' => [
'17000 - 187F7',
'18800 - 18AFF',
'18D00 - 18D08',
],
'Telugu' => [
'0C00 - 0C7F',
],
'Thaana' => [
'0780 - 07BF',
],
'Thai' => [
'0E00 - 0E7F',
],
'Tibetan' => [
'0F00 - 0FFF',
],
'Tifinagh' => [
'2D30 - 2D7F',
],
'Tirhuta' => [
'11480 - 114DF',
],
'Ugaritic' => [
'10380 - 1039F',
],
'Vai' => [
'A500 - A63F',
],
'Vedic Extensions' => [
'1CD0 - 1CFF',
],
'Wancho' => [
'1E2C0 - 1E2FF',
],
'Warang Citi' => [
'118A0 - 118FF',
],
'Yezidi' => [
'10E80 - 10EBF',
],
'Yi' => [
'A000 - A48F',
'A490 - A4CF',
],
'Yijing' => [
'4DC0 - 4DFF',
],
'Zanabazar Square' => [
'11A00 - 11A4F',
],
];
ksort($language_scripts);
// Get user defined number of characters to validate.
$check_quantity = \Drupal::config('protected_submissions.settings')
->get('protected_submissions.check_quantity');
// Check if the rejected submissions are logged or not.
$log_rejected = \Drupal::config('protected_submissions.settings')
->get('protected_submissions.log_rejected');
$language_failed = FALSE;
for ($i = 0; $i < $check_quantity; $i++) {
// Get a random letter from text stripped of all special characters.
mb_internal_encoding("UTF-8");
$random_char = mb_substr($stripped, rand(0, mb_strlen($stripped) - 1), 1);
if (!empty(trim($random_char))) {
if ($i < $check_quantity) {
if (protected_submissions_if_char_allowed($random_char, $allowed_scripts, $language_scripts) == FALSE) {
$form_state
->setErrorByName("user", $reject_message);
$rejected = \Drupal::state()
->get('protected_submissions.rejected');
$rejected = $rejected + 1;
// Save the new value.
\Drupal::state()
->set('protected_submissions.rejected', $rejected);
// Log the rejected submission.
if ($log_rejected == TRUE) {
\Drupal::logger('protected submissions')
->info('Rejected language:<em>' . $check_text . '</em>');
}
// Since the first pattern is found, break the loop.
$language_failed = TRUE;
break;
}
}
}
}
// Get list of user defined trigger patterns.
$reject_patterns = \Drupal::config('protected_submissions.settings')
->get('protected_submissions.reject_patterns');
// Turn multiline string into a single comma separated string.
$reject_patterns = str_replace([
"\r",
"\n",
], ",", $reject_patterns);
$reject_patterns = str_replace(',,', ',', $reject_patterns);
// Turn to array.
$reject_patterns = explode(",", $reject_patterns);
// Trim white spaces of array values in php.
$reject_patterns = array_map('trim', $reject_patterns);
// Remove empty array members.
$reject_patterns = array_filter($reject_patterns);
// Search for reject patterns in the concatenated text.
if ($language_failed == FALSE) {
$check_text = strtolower($check_text);
foreach ($reject_patterns as $pattern) {
if (preg_match("@\\b{$pattern}\\b@i", $check_text)) {
$form_state
->setErrorByName("user", $reject_message);
$rejected = \Drupal::state()
->get('protected_submissions.rejected');
$rejected = $rejected + 1;
// Save the new value.
\Drupal::state()
->set('protected_submissions.rejected', $rejected);
// Log the rejected submission.
if ($log_rejected == TRUE) {
\Drupal::logger('protected submissions')
->info('Rejected pattern:<em>' . $check_text . '</em>');
}
// Since the first pattern is found, break the loop.
break;
}
}
}
}