Rename token.go to identifier.gov0.1.0

1 files changed, 0 insertions, 43 deletions

diff --git a/token.go b/token.go
deleted file mode 100644
index 6da0e7c..0000000
--- a/token.go
+++ /dev/null
@@ -1,43 +0,0 @@
-// SPDX-License-Identifier: BSD-2-Clause
-// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
-
-package main
-
-import (
-	"crypto/hmac"
-	"crypto/sha256"
-	"encoding/binary"
-	"net/http"
-	"time"
-)
-
-func makeIdentifierMAC(request *http.Request) (identifier []byte, mac []byte) {
-	identifier = make([]byte, 0, sha256.Size)
-	mac = make([]byte, 0, sha256.Size)
-
-	timeBuf := make([]byte, binary.MaxVarintLen64)
-	binary.PutVarint(timeBuf, time.Now().Unix()/604800)
-
-	remoteIP := getRemoteIP(request)
-
-	h := sha256.New()
-	h.Write(timeBuf)
-	h.Write(stringToBytes(remoteIP))
-	h.Write(stringToBytes(request.Header.Get("User-Agent")))
-	h.Write(stringToBytes(request.Header.Get("Accept-Encoding")))
-	h.Write(stringToBytes(request.Header.Get("Accept-Language")))
-	h.Write(privkeyHash)
-	identifier = h.Sum(identifier)
-	if len(identifier) != sha256.Size {
-		panic("unexpected buffer length after hashing contents")
-	}
-
-	m := hmac.New(sha256.New, privkey)
-	m.Write(identifier)
-	mac = m.Sum(mac)
-	if len(mac) != sha256.Size {
-		panic("unexpected buffer length after hmac")
-	}
-
-	return
-}