From fbcac585cf626917e2baf1d0065c7b632341ba01 Mon Sep 17 00:00:00 2001
From: Gabriel Arakaki Giovanini <mail@gabrielgio.me>
Date: Wed, 19 Jul 2023 21:01:23 +0200
Subject: ref: Move auth functions to service

---
 pkg/ext/auth.go | 72 ---------------------------------------------------------
 1 file changed, 72 deletions(-)
 delete mode 100644 pkg/ext/auth.go

(limited to 'pkg/ext/auth.go')

diff --git a/pkg/ext/auth.go b/pkg/ext/auth.go
deleted file mode 100644
index ed122bb..0000000
--- a/pkg/ext/auth.go
+++ /dev/null
@@ -1,72 +0,0 @@
-package ext
-
-import (
-	"bytes"
-	"crypto/aes"
-	"crypto/cipher"
-	"crypto/rand"
-	"encoding/gob"
-	"errors"
-	"io"
-)
-
-type Token struct {
-	UserID   uint
-	Username string
-}
-
-func ReadToken(data []byte, key []byte) (*Token, error) {
-	block, err := aes.NewCipher(key)
-	if err != nil {
-		return nil, err
-	}
-
-	aesgcm, err := cipher.NewGCM(block)
-	if err != nil {
-		panic(err.Error())
-	}
-
-	nonceSize := aesgcm.NonceSize()
-	if len(data) < nonceSize {
-		return nil, errors.New("nonce size greater than data's size")
-	}
-
-	nonce, ciphertext := data[:nonceSize], data[nonceSize:]
-	plaintext, err := aesgcm.Open(nil, nonce, ciphertext, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	r := bytes.NewReader(plaintext)
-	var token Token
-	dec := gob.NewDecoder(r)
-	if err = dec.Decode(&token); err != nil {
-		return nil, err
-	}
-	return &token, nil
-}
-
-func WriteToken(token *Token, key []byte) ([]byte, error) {
-	block, err := aes.NewCipher(key)
-	if err != nil {
-		return nil, err
-	}
-
-	aesgcm, err := cipher.NewGCM(block)
-	if err != nil {
-		return nil, err
-	}
-
-	var buffer bytes.Buffer
-	enc := gob.NewEncoder(&buffer)
-	if err := enc.Encode(token); err != nil {
-		return nil, err
-	}
-	nonce := make([]byte, aesgcm.NonceSize())
-	if _, err = io.ReadFull(rand.Reader, nonce); err != nil {
-		return nil, err
-	}
-
-	ciphertext := aesgcm.Seal(nonce, nonce, buffer.Bytes(), nil)
-	return ciphertext, nil
-}
-- 
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