Fix leading dot check @pixcept

Marius Burkard · Judah - MW · commit 6b17bf5fd645 · 2022-08-17T14:11:28.000Z
diff --git a/interface/lib/classes/functions.inc.php b/interface/lib/classes/functions.inc.php
@@ -335,7 +335,7 @@ private function _idn_encode_decode($domain, $encode = true) {
 		}
 
 		// idn_to_* chokes on leading dots, but we need them for amavis, so remove it for later
-		if(strpos($domain, '.') == 0) {
+		if(substr($domain, 0, 1) === '.') {
 			$leading_dot = true;
 			$domain = substr($domain, 1);
 		} else {

Original file line number	Diff line number	Diff line change
`@@ -335,7 +335,7 @@ private function _idn_encode_decode($domain, $encode = true) {`
`335`	`335`	`}`
`336`	`336`
`337`	`337`	`// idn_to_* chokes on leading dots, but we need them for amavis, so remove it for later`
`338`		`- if(strpos($domain, '.') == 0) {`
	`338`	`+ if(substr($domain, 0, 1) === '.') {`
`339`	`339`	`$leading_dot = true;`
`340`	`340`	`$domain = substr($domain, 1);`
`341`	`341`	`} else {`