fix: normalize domains to ensure FQDN equality

tkxkd0159 · tkxkd0159 · commit 09c55d71a240 · 2025-11-21T00:47:05.000+09:00
diff --git a/src/index.ts b/src/index.ts
@@ -15,8 +15,8 @@ const ALLOWED_TXT_OPTIONS: Readonly<string[]> = ['authSource', 'replicaSet', 'lo
 
 function matchesParentDomain (srvAddress: string, parentDomain: string): boolean {
   const regex = /^.*?\./;
-  const srv = `.${srvAddress.replace(regex, '')}`;
-  const parent = `.${parentDomain.replace(regex, '')}`;
+  const srv = `.${(srvAddress.endsWith(".") ? srvAddress.slice(0, -1) : srvAddress).replace(regex, "")}`;
+  const parent = `.${(parentDomain.endsWith(".") ? parentDomain.slice(0, -1) : parentDomain).replace(regex, "")}`;
   return srv.endsWith(parent);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -15,8 +15,8 @@ const ALLOWED_TXT_OPTIONS: Readonly<string[]> = ['authSource', 'replicaSet', 'lo`
`15`	`15`
`16`	`16`	`function matchesParentDomain (srvAddress: string, parentDomain: string): boolean {`
`17`	`17`	`const regex = /^.*?\./;`
`18`		- const srv = `.${srvAddress.replace(regex, '')}`;
`19`		- const parent = `.${parentDomain.replace(regex, '')}`;
	`18`	+ const srv = `.${(srvAddress.endsWith(".") ? srvAddress.slice(0, -1) : srvAddress).replace(regex, "")}`;
	`19`	+ const parent = `.${(parentDomain.endsWith(".") ? parentDomain.slice(0, -1) : parentDomain).replace(regex, "")}`;
`20`	`20`	`return srv.endsWith(parent);`
`21`	`21`	`}`
`22`	`22`