-use Friendica\Content\Text\HTML;
-
-require_once "include/conversation.php";
-
-/**
- * @brief Generates a pseudo-random string of hexadecimal characters
- *
- * @param int $size
- * @return string
- */
-function random_string($size = 64)
-{
- $byte_size = ceil($size / 2);
-
- $bytes = random_bytes($byte_size);
-
- $return = substr(bin2hex($bytes), 0, $size);
-
- return $return;
-}
-
-/**
- * This is our primary input filter.
- *
- * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
- * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
- * after cleansing, and angle chars with the high bit set could get through as markup.
- *
- * This is now disabled because it was interfering with some legitimate unicode sequences
- * and hopefully there aren't a lot of those browsers left.
- *
- * Use this on any text input where angle chars are not valid or permitted
- * They will be replaced with safer brackets. This may be filtered further
- * if these are not allowed either.
- *
- * @param string $string Input string
- * @return string Filtered string
- */
-function notags($string) {
- return str_replace(["<", ">"], ['[', ']'], $string);
-
-// High-bit filter no longer used
-// return str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string);
-}
-
-
-/**
- * use this on "body" or "content" input where angle chars shouldn't be removed,
- * and allow them to be safely displayed.
- * @param string $string
- * @return string
- */
-function escape_tags($string) {
- return htmlspecialchars($string, ENT_COMPAT, 'UTF-8', false);
-}
-
-
-/**
- * generate a string that's random, but usually pronounceable.
- * used to generate initial passwords
- * @param int $len
- * @return string
- */
-function autoname($len) {
-
- if ($len <= 0) {
- return '';
- }
-
- $vowels = ['a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u'];
- if (mt_rand(0, 5) == 4) {
- $vowels[] = 'y';
- }
-
- $cons = [
- 'b','bl','br',
- 'c','ch','cl','cr',
- 'd','dr',
- 'f','fl','fr',
- 'g','gh','gl','gr',
- 'h',
- 'j',
- 'k','kh','kl','kr',
- 'l',
- 'm',
- 'n',
- 'p','ph','pl','pr',
- 'qu',
- 'r','rh',
- 's','sc','sh','sm','sp','st',
- 't','th','tr',
- 'v',
- 'w','wh',
- 'x',
- 'z','zh'
- ];
-
- $midcons = ['ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
- 'nd','ng','nk','nt','rn','rp','rt'];
-
- $noend = ['bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
- 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh','q'];
-
- $start = mt_rand(0,2);
- if ($start == 0) {
- $table = $vowels;
- } else {
- $table = $cons;
- }
-
- $word = '';
-
- for ($x = 0; $x < $len; $x ++) {
- $r = mt_rand(0,count($table) - 1);
- $word .= $table[$r];
-
- if ($table == $vowels) {
- $table = array_merge($cons,$midcons);
- } else {
- $table = $vowels;
- }
-
- }
-
- $word = substr($word,0,$len);
-
- foreach ($noend as $noe) {
- $noelen = strlen($noe);
- if ((strlen($word) > $noelen) && (substr($word, -$noelen) == $noe)) {
- $word = autoname($len);
- break;
- }
- }
-
- return $word;
-}