Move installation of JWT to external file in auth component

src/main/kotlin/component/auth/jwt/JwtInstallation.kt

@@ -0,0 +1,43 @@
+package component.auth.jwt
+
+import fr.dcproject.component.auth.User
+import fr.dcproject.component.auth.UserRepository
+import fr.dcproject.component.auth.jwt.JwtConfig
+import io.ktor.application.*
+import io.ktor.auth.*
+import io.ktor.auth.jwt.*
+import io.ktor.http.auth.*
+import io.ktor.routing.*
+import java.util.*
+
+fun jwtInstallation(userRepo: UserRepository): Authentication.Configuration.() -> Unit = {
+    /**
+     * Setup the JWT authentication to be used in [Routing].
+     * If the token is valid, the corresponding [User] is fetched from the database.
+     * The [User] can then be accessed in each [ApplicationCall].
+     */
+    jwt {
+        verifier(JwtConfig.verifier)
+        realm = "dc-project.fr"
+        validate {
+            it.payload.getClaim("id").asString()?.let { id ->
+                userRepo.findById(UUID.fromString(id))
+            }
+        }
+    }
+
+    jwt("url") {
+        verifier(JwtConfig.verifier)
+        realm = "dc-project.fr"
+        authHeader { call ->
+            call.request.queryParameters["token"]?.let {
+                HttpAuthHeader.Single("Bearer", it)
+            }
+        }
+        validate {
+            it.payload.getClaim("id").asString()?.let { id ->
+                userRepo.findById(UUID.fromString(id))
+            }
+        }
+    }
+}