Adds dbAuth

api/src/functions/auth.js

@@ -0,0 +1,149 @@
+import { db } from 'src/lib/db'
+import { DbAuthHandler } from '@redwoodjs/api'
+
+export const handler = async (event, context) => {
+  const forgotPasswordOptions = {
+    // handler() is invoked after verifying that a user was found with the given
+    // username. This is where you can send the user an email with a link to
+    // reset their password. With the default dbAuth routes and field names, the
+    // URL to reset the password will be:
+    //
+    // https://example.com/reset-password?resetToken=${user.resetToken}
+    //
+    // Whatever is returned from this function will be returned from
+    // the `forgotPassword()` function that is destructured from `useAuth()`
+    // You could use this return value to, for example, show the email
+    // address in a toast message so the user will know it worked and where
+    // to look for the email.
+    handler: (user) => {
+      return user
+    },
+
+    // How long the resetToken is valid for, in seconds (default is 24 hours)
+    expires: 60 * 60 * 24,
+
+    errors: {
+      // for security reasons you may want to be vague here rather than expose
+      // the fact that the email address wasn't found (prevents fishing for
+      // valid email addresses)
+      usernameNotFound: 'Username not found',
+      // if the user somehow gets around client validation
+      usernameRequired: 'Username is required',
+    },
+  }
+
+  const loginOptions = {
+    // handler() is called after finding the user that matches the
+    // username/password provided at login, but before actually considering them
+    // logged in. The `user` argument will be the user in the database that
+    // matched the username/password.
+    //
+    // If you want to allow this user to log in simply return the user.
+    //
+    // If you want to prevent someone logging in for another reason (maybe they
+    // didn't validate their email yet), throw an error and it will be returned
+    // by the `logIn()` function from `useAuth()` in the form of:
+    // `{ message: 'Error message' }`
+    handler: (user) => {
+      return user
+    },
+
+    errors: {
+      usernameOrPasswordMissing: 'Both username and password are required',
+      usernameNotFound: 'Username ${username} not found',
+      // For security reasons you may want to make this the same as the
+      // usernameNotFound error so that a malicious user can't use the error
+      // to narrow down if it's the username or password that's incorrect
+      incorrectPassword: 'Incorrect password for ${username}',
+    },
+
+    // How long a user will remain logged in, in seconds
+    expires: 60 * 60 * 24 * 365 * 10,
+  }
+
+  const resetPasswordOptions = {
+    // handler() is invoked after the password has been successfully updated in
+    // the database. Returning anything truthy will automatically logs the user
+    // in. Return `false` otherwise, and in the Reset Password page redirect the
+    // user to the login page.
+    handler: (user) => {
+      return user
+    },
+
+    // If `false` then the new password MUST be different than the current one
+    allowReusedPassword: true,
+
+    errors: {
+      // the resetToken is valid, but expired
+      resetTokenExpired: 'resetToken is expired',
+      // no user was found with the given resetToken
+      resetTokenInvalid: 'resetToken is invalid',
+      // the resetToken was not present in the URL
+      resetTokenRequired: 'resetToken is required',
+      // new password is the same as the old password (apparently they did not forget it)
+      reusedPassword: 'Must choose a new password',
+    },
+  }
+
+  const signupOptions = {
+    // Whatever you want to happen to your data on new user signup. Redwood will
+    // check for duplicate usernames before calling this handler. At a minimum
+    // you need to save the `username`, `hashedPassword` and `salt` to your
+    // user table. `userAttributes` contains any additional object members that
+    // were included in the object given to the `signUp()` function you got
+    // from `useAuth()`.
+    //
+    // If you want the user to be immediately logged in, return the user that
+    // was created.
+    //
+    // If this handler throws an error, it will be returned by the `signUp()`
+    // function in the form of: `{ error: 'Error message' }`.
+    //
+    // If this returns anything else, it will be returned by the
+    // `signUp()` function in the form of: `{ message: 'String here' }`.
+    handler: ({ username, hashedPassword, salt, userAttributes }) => {
+      return db.user.create({
+        data: {
+          email: username,
+          hashedPassword: hashedPassword,
+          salt: salt,
+          // name: userAttributes.name
+        },
+      })
+    },
+
+    errors: {
+      // `field` will be either "username" or "password"
+      fieldMissing: '${field} is required',
+      usernameTaken: 'Username `${username}` already in use',
+    },
+  }
+
+  const authHandler = new DbAuthHandler(event, context, {
+    // Provide prisma db client
+    db: db,
+
+    // The name of the property you'd call on `db` to access your user table.
+    // ie. if your Prisma model is named `User` this value would be `user`, as in `db.user`
+    authModelAccessor: 'user',
+
+    // A map of what dbAuth calls a field to what your database calls it.
+    // `id` is whatever column you use to uniquely identify a user (probably
+    // something like `id` or `userId` or even `email`)
+    authFields: {
+      id: 'id',
+      username: 'email',
+      hashedPassword: 'hashedPassword',
+      salt: 'salt',
+      resetToken: 'resetToken',
+      resetTokenExpiresAt: 'resetTokenExpiresAt',
+    },
+
+    forgotPassword: forgotPasswordOptions,
+    login: loginOptions,
+    resetPassword: resetPasswordOptions,
+    signup: signupOptions,
+  })
+
+  return await authHandler.invoke()
+}

api/src/lib/auth.js

@@ -1,36 +1,28 @@
-import { parseJWT } from '@redwoodjs/api'
 import { AuthenticationError, ForbiddenError } from '@redwoodjs/graphql-server'
-import { logger } from 'src/lib/logger'
+import { db } from './db'
 
 /**
- * getCurrentUser returns the user information together with
- * an optional collection of roles used by requireAuth() to check
- * if the user is authenticated or has role-based access
+ * The session object sent in as the first argument to getCurrentUser() will
+ * have a single key `id` containing the unique ID of the logged in user
+ * (whatever field you set as `authFields.id` in your auth function config).
+ * You'll need to update the call to `db` below if you use a different model
+ * name or unique field name, for example:
  *
- * @param decoded - The decoded access token containing user info and JWT claims like `sub`. Note could be null.
- * @param { token, SupportedAuthTypes type } - The access token itself as well as the auth provider type
- * @param { APIGatewayEvent event, Context context } - An object which contains information from the invoker
- * such as headers and cookies, and the context information about the invocation such as IP Address
+ *   return await db.profile.findUnique({ where: { email: session.id } })
+ *                   ───┬───                       ──┬──
+ *      model accessor ─┘      unique id field name ─┘
  *
- * @see https://github.com/redwoodjs/redwood/tree/main/packages/auth for examples
+ * !! BEWARE !! Anything returned from this function will be available to the
+ * client--it becomes the content of `currentUser` on the web side (as well as
+ * `context.currentUser` on the api side). You should carefully add additional
+ * fields to the `select` object below once you've decided they are safe to be
+ * seen if someone were to open the Web Inspector in their browser.
  */
-export const getCurrentUser = async (
-  decoded,
-  { _token, _type },
-  { _event, _context }
-) => {
-  if (!decoded) {
-    logger.warn('Missing decoded user')
-    return null
-  }
-
-  const { roles } = parseJWT({ decoded })
-
-  if (roles) {
-    return { ...decoded, roles }
-  }
-
-  return { ...decoded }
+export const getCurrentUser = async (session) => {
+  return await db.user.findUnique({
+    where: { id: session.id },
+    select: { id: true },
+  })
 }
 
 /**
@@ -60,13 +52,14 @@ export const hasRole = ({ roles }) => {
     return false
   }
 
+  // If your User model includes roles, uncomment the role checks on currentUser
   if (roles) {
     if (Array.isArray(roles)) {
-      return context.currentUser.roles?.some((r) => roles.includes(r))
+      // return context.currentUser.roles?.some((r) => roles.includes(r))
     }
 
     if (typeof roles === 'string') {
-      return context.currentUser.roles?.includes(roles)
+      // return context.currentUser.roles?.includes(roles)
     }
 
     // roles not found