feat: サンプルの値を使ってJWTでログイントークンを発行できるように

src/main/kotlin/dev/usbharu/hideout/Application.kt

@@ -97,6 +97,7 @@ fun Application.parent() {
     configureMonitoring()
     configureSerialization()
     register(inject<IUserService>().value)
+    configureSecurity(inject<IUserAuthService>().value)
     configureRouting(
         inject<HttpSignatureVerifyService>().value,
         inject<ActivityPubService>().value,

src/main/kotlin/dev/usbharu/hideout/domain/model/hideout/form/UserLogin.kt

@@ -0,0 +1,3 @@
+package dev.usbharu.hideout.domain.model.hideout.form
+
+data class UserLogin(val username: String, val password: String)

src/main/kotlin/dev/usbharu/hideout/plugins/Security.kt

@@ -2,24 +2,86 @@
 
 package dev.usbharu.hideout.plugins
 
+import com.auth0.jwk.JwkProviderBuilder
+import com.auth0.jwt.JWT
+import com.auth0.jwt.algorithms.Algorithm
+import dev.usbharu.hideout.domain.model.hideout.form.UserLogin
+import dev.usbharu.hideout.property
 import dev.usbharu.hideout.service.IUserAuthService
+import io.ktor.http.*
 import io.ktor.server.application.*
 import io.ktor.server.auth.*
+import io.ktor.server.auth.jwt.*
+import io.ktor.server.request.*
+import io.ktor.server.response.*
+import io.ktor.server.routing.*
+import java.security.KeyFactory
+import java.security.interfaces.RSAPrivateKey
+import java.security.interfaces.RSAPublicKey
+import java.security.spec.PKCS8EncodedKeySpec
+import java.util.*
+import java.util.concurrent.TimeUnit
 
-const val TOKEN_AUTH = "token-auth"
+const val TOKEN_AUTH = "jwt-auth"
 
 fun Application.configureSecurity(userAuthService: IUserAuthService) {
+
+    val privateKeyString = property("jwt.privateKey")
+    val issuer = property("jwt.issuer")
+//    val audience = property("jwt.audience")
+    val myRealm = property("jwt.realm")
+    val jwkProvider = JwkProviderBuilder(issuer)
+        .cached(10, 24, TimeUnit.HOURS)
+        .rateLimited(10, 1, TimeUnit.MINUTES)
+        .build()
     install(Authentication) {
-        bearer(TOKEN_AUTH) {
+        jwt(TOKEN_AUTH) {
-            authenticate { bearerTokenCredential ->
+            realm = myRealm
-                UserIdPrincipal(bearerTokenCredential.token)
+            verifier(jwkProvider, issuer) {
+                acceptLeeway(3)
+            }
+            validate { jwtCredential ->
+                if (jwtCredential.payload.getClaim("username").asString().isNotEmpty()) {
+                    JWTPrincipal(jwtCredential.payload)
+                } else {
+                    null
+                }
             }
-            skipWhen { true }
         }
     }
-//    install(Sessions) {
+
-//        cookie<UserSession>("MY_SESSION") {
+    routing {
-//            cookie.extensions["SameSite"] = "lax"
+        post("/login") {
-//        }
+            val user = call.receive<UserLogin>()
-//    }
+            val check = userAuthService.verifyAccount(user.username, user.password)
+            if (check.not()) {
+                return@post call.respond(HttpStatusCode.Unauthorized)
+            }
+
+            val publicKey = jwkProvider.get("6f8856ed-9189-488f-9011-0ff4b6c08edc").publicKey
+            val keySpecPKCS8 = PKCS8EncodedKeySpec(Base64.getDecoder().decode(privateKeyString))
+            val privateKey = KeyFactory.getInstance("RSA").generatePrivate(keySpecPKCS8)
+            val token = JWT.create()
+//                .withAudience(audience)
+//                .withIssuer(issuer)
+                .withClaim("username", user.username)
+                .withExpiresAt(Date(System.currentTimeMillis() + 60000))
+                .sign(Algorithm.RSA256(publicKey as RSAPublicKey, privateKey as RSAPrivateKey))
+            return@post call.respond(hashSetOf("token" to token))
+        }
+
+        get("/.well-known/jwks.json"){
+            //language=JSON
+            call.respondText(contentType = ContentType.Application.Json,text = """{
+  "keys": [
+    {
+      "kty": "RSA",
+      "e": "AQAB",
+      "kid": "6f8856ed-9189-488f-9011-0ff4b6c08edc",
+      "n":"tfJaLrzXILUg1U3N1KV8yJr92GHn5OtYZR7qWk1Mc4cy4JGjklYup7weMjBD9f3bBVoIsiUVX6xNcYIr0Ie0AQ"
+    }
+  ]
+}""")
+        }
+    }
 }

src/main/kotlin/dev/usbharu/hideout/routing/LoginRouting.kt

@@ -0,0 +1,8 @@
+package dev.usbharu.hideout.routing
+
+import dev.usbharu.hideout.service.IUserAuthService
+import io.ktor.server.routing.*
+
+fun Routing.login(userAuthService: IUserAuthService){
+
+}

src/main/resources/application.conf

@@ -20,3 +20,10 @@ hideout {
     password = ""
   }
 }
+
+jwt {
+    privateKey = "MIIBVQIBADANBgkqhkiG9w0BAQEFAASCAT8wggE7AgEAAkEAtfJaLrzXILUg1U3N1KV8yJr92GHn5OtYZR7qWk1Mc4cy4JGjklYup7weMjBD9f3bBVoIsiUVX6xNcYIr0Ie0AQIDAQABAkEAg+FBquToDeYcAWBe1EaLVyC45HG60zwfG1S4S3IB+y4INz1FHuZppDjBh09jptQNd+kSMlG1LkAc/3znKTPJ7QIhANpyB0OfTK44lpH4ScJmCxjZV52mIrQcmnS3QzkxWQCDAiEA1Tn7qyoh+0rOO/9vJHP8U/beo51SiQMw0880a1UaiisCIQDNwY46EbhGeiLJR1cidr+JHl86rRwPDsolmeEF5AdzRQIgK3KXL3d0WSoS//K6iOkBX3KMRzaFXNnDl0U/XyeGMuUCIHaXv+n+Brz5BDnRbWS+2vkgIe9bUNlkiArpjWvX+2we"
+    issuer = "http://0.0.0.0:8080/"
+    audience = "http://0.0.0.0:8080/hello"
+    realm = "Access to 'hello'"
+}