ci: migrate GitHub actions to Gitea actions

privat/CV/andreknie.de/server/services/confirmationToken.js

@@ -2,10 +2,12 @@ import crypto from 'crypto'
 import { readFileSync, writeFileSync, existsSync, mkdirSync } from 'fs'
 import { join, dirname } from 'path'
 import { fileURLToPath } from 'url'
+import { Mutex } from 'async-mutex'
 
 const __dirname = dirname(fileURLToPath(import.meta.url))
 const DATA_DIR = join(__dirname, '..', 'data')
 const TOKENS_FILE = join(DATA_DIR, 'pending-tokens.json')
+const tokenMutex = new Mutex()
 
 // Ensure data directory exists
 mkdirSync(DATA_DIR, { recursive: true })
@@ -27,18 +29,20 @@ function saveTokens(tokens) {
  * @param {number} expiresInHours - Token expiration (default: 48h)
  * @returns {string} The generated token
  */
-export function createToken(type, data, expiresInHours = 48) {
+export async function createToken(type, data, expiresInHours = 48) {
   const token = crypto.randomUUID()
-  const tokens = loadTokens()
-  tokens.push({
-    token,
-    type,
-    data,
-    createdAt: new Date().toISOString(),
-    expiresAt: new Date(Date.now() + expiresInHours * 60 * 60 * 1000).toISOString(),
-    confirmed: false,
+  await tokenMutex.runExclusive(async () => {
+    const tokens = loadTokens()
+    tokens.push({
+      token,
+      type,
+      data,
+      createdAt: new Date().toISOString(),
+      expiresAt: new Date(Date.now() + expiresInHours * 60 * 60 * 1000).toISOString(),
+      confirmed: false,
+    })
+    saveTokens(tokens)
   })
-  saveTokens(tokens)
   return token
 }
 
@@ -46,35 +50,39 @@ export function createToken(type, data, expiresInHours = 48) {
  * Verify and consume a token.
  * @returns {object|null} The stored data if valid, null if expired/invalid
  */
-export function verifyToken(token) {
-  const tokens = loadTokens()
-  const idx = tokens.findIndex(t => t.token === token && !t.confirmed)
-  if (idx === -1) return null
+export async function verifyToken(token) {
+  return await tokenMutex.runExclusive(async () => {
+    const tokens = loadTokens()
+    const idx = tokens.findIndex(t => t.token === token && !t.confirmed)
+    if (idx === -1) return null
 
-  const entry = tokens[idx]
-  if (new Date(entry.expiresAt) < new Date()) {
-    // Expired — remove it
-    tokens.splice(idx, 1)
+    const entry = tokens[idx]
+    if (new Date(entry.expiresAt) < new Date()) {
+      // Expired — remove it
+      tokens.splice(idx, 1)
+      saveTokens(tokens)
+      return null
+    }
+
+    // Mark as confirmed
+    tokens[idx].confirmed = true
     saveTokens(tokens)
-    return null
-  }
-
-  // Mark as confirmed
-  tokens[idx].confirmed = true
-  saveTokens(tokens)
-  return entry
+    return entry
+  })
 }
 
 /**
  * Clean up expired tokens (run periodically).
  */
-export function cleanupExpiredTokens() {
-  const tokens = loadTokens()
-  const now = new Date()
-  const valid = tokens.filter(t => new Date(t.expiresAt) > now || t.confirmed)
-  if (valid.length !== tokens.length) {
-    saveTokens(valid)
-  }
+export async function cleanupExpiredTokens() {
+  await tokenMutex.runExclusive(async () => {
+    const tokens = loadTokens()
+    const now = new Date()
+    const valid = tokens.filter(t => new Date(t.expiresAt) > now || t.confirmed)
+    if (valid.length !== tokens.length) {
+      saveTokens(valid)
+    }
+  })
 }
 
 // Run cleanup every hour