Initial commit

src/function/authentication/index.ts

@@ -0,0 +1,56 @@
+/*
+ * server component for the TimeLimit App
+ * Copyright (C) 2019 Jonas Lochmann
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import { Unauthorized } from 'http-errors'
+import { Database } from '../../database'
+import { generateAuthToken } from '../../util/token'
+
+export const createAuthTokenByMailAddress = async ({ mail, database }: {mail: string, database: Database}) => {
+  const token = generateAuthToken()
+
+  await database.authtoken.create({
+    token,
+    mail,
+    createdAt: Date.now().toString()
+  })
+
+  return token
+}
+
+export const getMailByAuthToken = async ({ mailAuthToken, database }: {mailAuthToken: string, database: Database}) => {
+  const entry = await database.authtoken.findOne({
+    where: {
+      token: mailAuthToken
+    }
+  })
+
+  if (entry) {
+    return entry.mail
+  } else {
+    return null
+  }
+}
+
+export const requireMailByAuthToken = async ({ mailAuthToken, database }: {mailAuthToken: string, database: Database}) => {
+  const mail = await getMailByAuthToken({ mailAuthToken, database })
+
+  if (!mail) {
+    throw new Unauthorized()
+  }
+
+  return mail
+}