From 0a0aa0e2dbaf345a840b57216906ac52292ae3da Mon Sep 17 00:00:00 2001
From: MeiMei <30769358+mei23@users.noreply.github.com>
Date: Tue, 12 Mar 2019 23:38:11 +0900
Subject:  Fix #4484  (#4485)

* Fix #4484

* import order
---
 src/misc/convert-host.ts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 src/misc/convert-host.ts

(limited to 'src/misc/convert-host.ts')

diff --git a/src/misc/convert-host.ts b/src/misc/convert-host.ts
new file mode 100644
index 0000000000..d4478bd85b
--- /dev/null
+++ b/src/misc/convert-host.ts
@@ -0,0 +1,21 @@
+import config from '../config';
+import { toUnicode, toASCII } from 'punycode';
+
+export function getFullApAccount(username: string, host: string) {
+	return host ? `${username}@${toApHost(host)}` : `${username}@${toApHost(config.host)}`;
+}
+
+export function isSelfHost(host: string) {
+	if (host == null) return true;
+	return toApHost(config.host) === toApHost(host);
+}
+
+export function toDbHost(host: string) {
+	if (host == null) return null;
+	return toUnicode(host.toLowerCase());
+}
+
+export function toApHost(host: string) {
+	if (host == null) return null;
+	return toASCII(host.toLowerCase());
+}
-- 
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