From f7e3d0dbf6a763557d3431c6d12a6dde1be5648b Mon Sep 17 00:00:00 2001
From: zotlabs <mike@macgirvin.com>
Date: Thu, 9 Nov 2017 21:26:18 -0800
Subject: hubzilla issue #901 - unicode characters in urls tripping up url
 regexes - these regexes have been modified to accept unicode "letters" which
 may preclude emojis and control sequences and symbols in url links; but
 should suffice for most legal URLs containing language context "text" glyphs.

---
 include/text.php | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

(limited to 'include/text.php')

diff --git a/include/text.php b/include/text.php
index 746c35679..c74e515d2 100644
--- a/include/text.php
+++ b/include/text.php
@@ -819,7 +819,7 @@ function get_tags($s) {
 	// added ; to single word tags to allow emojis and other unicode character constructs in bbcode
 	// (this would actually be &#xnnnnn; but the ampersand will have been escaped to &amp; by the time we see it.)
 
-	if(preg_match_all('/(?<![a-zA-Z0-9=\/\?])(@[^ \x0D\x0A,:?\[]+ [^ \x0D\x0A@,:?\[]+)/',$s,$match)) {
+	if(preg_match_all('/(?<![a-zA-Z0-9=\pL\/\?])(@[^ \x0D\x0A,:?\[]+ [^ \x0D\x0A@,:?\[]+)/u',$s,$match)) {
 		foreach($match[1] as $mtch) {
 			if(substr($mtch,-1,1) === '.')
 				$ret[] = substr($mtch,0,-1);
@@ -831,7 +831,7 @@ function get_tags($s) {
 	// Otherwise pull out single word tags. These can be @nickname, @first_last
 	// and #hash tags.
 
-	if(preg_match_all('/(?<![a-zA-Z0-9=\/\?\;])([@#\!][^ \x0D\x0A,;:?\[]+)/',$s,$match)) {
+	if(preg_match_all('/(?<![a-zA-Z0-9=\pL\/\?\;])([@#\!][^ \x0D\x0A,;:?\[]+)/u',$s,$match)) {
 		foreach($match[1] as $mtch) {
 			if(substr($mtch,-1,1) === '.')
 				$mtch = substr($mtch,0,-1);
@@ -1052,7 +1052,7 @@ function searchbox($s,$id='search-box',$url='/search',$save = false) {
  * @return string
  */
 function linkify($s, $me = false) {
-	$s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\@\~\#\'\%\$\!\+\,\@]*)/", (($me) ? ' <a href="$1" rel="me" >$1</a>' : ' <a href="$1" >$1</a>'), $s);
+	$s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\pL\:\/\-\?\&\;\.\=\_\@\~\#\'\%\$\!\+\,\@]*)/u", (($me) ? ' <a href="$1" rel="me" >$1</a>' : ' <a href="$1" >$1</a>'), $s);
 	$s = preg_replace("/\<(.*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$s);
 
 	return($s);
@@ -3099,10 +3099,10 @@ function cleanup_bbcode($body) {
 	$body = preg_replace_callback('/\[zrl(.*?)\[\/(zrl)\]/ism','\red_escape_codeblock',$body);
 
 
-	$body = preg_replace_callback("/([^\]\='".'"'."\/]|^|\#\^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\@\_\~\#\%\$\!\\
-+\,\(\)]+)/ism", '\nakedoembed', $body);
-	$body = preg_replace_callback("/([^\]\='".'"'."\/]|^|\#\^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\@\_\~\#\%\$\!\\
-+\,\(\)]+)/ism", '\red_zrl_callback', $body);
+	$body = preg_replace_callback("/([^\]\='".'"'."\/]|^|\#\^)(https?\:\/\/[a-zA-Z0-9\pL\:\/\-\?\&\;\.\=\@\_\~\#\%\$\!\\
++\,\(\)]+)/ismu", '\nakedoembed', $body);
+	$body = preg_replace_callback("/([^\]\='".'"'."\/]|^|\#\^)(https?\:\/\/[a-zA-Z0-9\pL\:\/\-\?\&\;\.\=\@\_\~\#\%\$\!\\
++\,\(\)]+)/ismu", '\red_zrl_callback', $body);
 
 	$body = preg_replace_callback('/\[\$b64zrl(.*?)\[\/(zrl)\]/ism','\red_unescape_codeblock',$body);
 	$body = preg_replace_callback('/\[\$b64url(.*?)\[\/(url)\]/ism','\red_unescape_codeblock',$body);
-- 
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