port Lib/Crypto from zap

1 files changed, 10 insertions, 1 deletions

diff --git a/include/text.php b/include/text.php
index 1e08d136c..b7cc0ba20 100644
--- a/include/text.php
+++ b/include/text.php
@@ -9,6 +9,7 @@ use Michelf\MarkdownExtra;
 use Ramsey\Uuid\Uuid;
 use Ramsey\Uuid\Exception\UnableToBuildUuidException;
 
+use Zotlabs\Lib\Crypto;
 use Zotlabs\Lib\SvgSanitizer;
 
 require_once("include/bbcode.php");
@@ -3248,7 +3249,7 @@ function item_url_replace($channel,&$item,$old,$new,$oldnick = '') {
 	$item['body'] = preg_replace("/(\[zrl=".preg_quote($old,'/')."\/(photo|photos|gallery)\/".$channel['channel_address'].".+\]\[zmg=\d+x\d+\])".preg_quote($old,'/')."\/(.+\[\/zmg\])/", '${1}'.$new.'/${3}', $item['body']);
 	$item['body'] = preg_replace("/".preg_quote($old,'/')."\/(search|\w+\/".$channel['channel_address'].")/", $new.'/${1}', $item['body']);
 
-	$item['sig'] = base64url_encode(rsa_sign($item['body'],$channel['channel_prvkey']));
+	$item['sig'] = base64url_encode(Crypto::sign($item['body'],$channel['channel_prvkey']));
 	$item['item_verified']  = 1;
 
 	$item['plink'] = str_replace($old,$new,$item['plink']);
@@ -3881,6 +3882,14 @@ function unserialise($x) {
 	return ((is_array($y)) ? $y : $x);
 }
 
+function obscurify($s) {
+	return str_rot47(base64url_encode($s));
+}
+
+function unobscurify($s) {
+	return base64url_decode(str_rot47($s));
+}
+
 /**
  * @brief Remove new lines and tabs from strings.
  *