feat: refresh token when page is reloaded

private/minis-backend/src/main/kotlin/de/walamana/plugins/Databases.kt

@@ -29,6 +29,7 @@ fun Application.configureDatabases() {
         SchemaUtils.create(GottesdienstGroups)
         SchemaUtils.create(Gottesdienste)
         SchemaUtils.create(Marks)
+        // TODO Add proper versioning and migration for database
         exec("ALTER TABLE MINISTRANTEN ALTER COLUMN birthday BIGINT NULL;")
     }
 }

private/minis-backend/src/main/kotlin/de/walamana/plugins/Security.kt

@@ -59,7 +59,7 @@ fun Payload.mid() = getClaim("id").asInt()
 
 
 object Security {
-    fun DEFAULT_EXPIRY() = Date(System.currentTimeMillis() + 1000 * 60 * 60 * 24 * 14);
+    fun DEFAULT_EXPIRY() = Date(System.currentTimeMillis() + 1000L * 60 * 60 * 24 * 40);
 
     suspend fun authenticateUser(application: Application, username: String, password: String): Ministrant? {
         println("Username $username password $password")

private/minis-backend/src/main/kotlin/de/walamana/views/AuthenticationView.kt

@@ -3,6 +3,7 @@ package de.walamana.views
 import at.favre.lib.crypto.bcrypt.BCrypt
 import com.auth0.jwt.JWT
 import com.auth0.jwt.algorithms.Algorithm
+import de.walamana.models.Ministrant
 import de.walamana.models.MinistrantenDao
 import de.walamana.plugins.Security
 import de.walamana.plugins.getJWTEnvironment
@@ -98,6 +99,28 @@ fun Route.configureAuthenticationRoutes() {
 
                 call.respond(hashMapOf("password" to newPassword))
             }
+            post("refresh") {
+                val principal = call.principal<JWTPrincipal>()!!
+                val jwtEnv = application.getJWTEnvironment()
+                val username = principal.payload.username()
+
+                val ministrant = if (username == "admin") {
+                    val allMinis = MinistrantenDao.allMinistranten().map { it.username }
+                    Ministrant(0, "admin", "", "admin", "admin", null, allMinis)
+                } else {
+                    MinistrantenDao.getMinistrant(username) ?: return@post
+                }
+
+                val newToken = Security.createToken(jwtEnv, ministrant)
+                val expiry = Security.DEFAULT_EXPIRY().toGMTString()
+
+                call.response.header(
+                    "Set-Cookie",
+                    "token=$newToken; HttpOnly; Expires=$expiry"
+                )
+
+                call.respond(AuthenticationResult(true, newToken, ministrant.privileges))
+            }
         }
     }
 }

public/src/App.vue

@@ -22,8 +22,11 @@ function print(){
     window.print()
 }
 
-onMounted(() => {
+onMounted(async () => {
     Auth.checkForToken()
+    if (Auth.getToken()) {
+        await Auth.refreshToken()
+    }
 })
 
 LoginService.subject.subscribe(() => {

public/src/services/auth.ts

@@ -71,6 +71,30 @@ export namespace Auth {
         }
     }
 
+    export async function refreshToken(): Promise<boolean> {
+        const token = getToken()
+        if (!token) return false
+
+        return api("/auth/refresh", "POST").then(res => {
+            if (res.status == 200) {
+                return res.json().then(data => {
+                    if (data.success) {
+                        setToken(data.token ?? "")
+                        const payload = parseJwt(data.token)
+                        loggedIn = true
+                        user = payload.username
+                        privileges = payload.privileges
+                        privileges.push(user)
+                        loggedInSubject.next(true)
+                        return true
+                    }
+                    return false
+                })
+            }
+            return false
+        }).catch(() => false)
+    }
+
     function parseJwt (token) {
         var base64Url = token.split('.')[1];
         var base64 = base64Url.replace(/-/g, '+').replace(/_/g, '/');