feat: ユーザーページをacceptヘッダーがactivityの状態でアクセスするとpersonを返すように

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

@@ -8,6 +8,8 @@ import dev.usbharu.hideout.repository.UserRepository
 import dev.usbharu.hideout.service.IUserAuthService
 import dev.usbharu.hideout.service.activitypub.ActivityPubService
 import dev.usbharu.hideout.service.activitypub.ActivityPubServiceImpl
+import dev.usbharu.hideout.service.activitypub.ActivityPubUserService
+import dev.usbharu.hideout.service.activitypub.ActivityPubUserServiceImpl
 import dev.usbharu.hideout.service.impl.UserAuthService
 import dev.usbharu.hideout.service.impl.UserService
 import dev.usbharu.hideout.service.signature.HttpSignatureVerifyService
@@ -42,6 +44,7 @@ fun Application.module() {
         single<HttpSignatureVerifyService> { HttpSignatureVerifyServiceImpl(get()) }
         single<ActivityPubService> { ActivityPubServiceImpl() }
         single<UserService> { UserService(get()) }
+        single<ActivityPubUserService> { ActivityPubUserServiceImpl(get(),get()) }
     }
 
     configureKoin(module)
@@ -52,6 +55,7 @@ fun Application.module() {
     configureRouting(
         inject<HttpSignatureVerifyService>().value,
         inject<ActivityPubService>().value,
-        inject<UserService>().value
+        inject<UserService>().value,
+        inject<ActivityPubUserService>().value
     )
 }

src/main/kotlin/dev/usbharu/hideout/ap/Image.kt

@@ -13,4 +13,21 @@ open class Image : Object {
         this.url = url
     }
 
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other !is Image) return false
+        if (!super.equals(other)) return false
+
+        if (mediaType != other.mediaType) return false
+        return url == other.url
+    }
+
+    override fun hashCode(): Int {
+        var result = super.hashCode()
+        result = 31 * result + (mediaType?.hashCode() ?: 0)
+        result = 31 * result + (url?.hashCode() ?: 0)
+        return result
+    }
+
+
 }

src/main/kotlin/dev/usbharu/hideout/ap/JsonLd.kt

@@ -25,6 +25,19 @@ open class JsonLd {
     }
 
     protected constructor()
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other !is JsonLd) return false
+
+        return context == other.context
+    }
+
+    override fun hashCode(): Int {
+        return context.hashCode()
+    }
+
+
 }
 
 public class ContextDeserializer : JsonDeserializer<String>() {

src/main/kotlin/dev/usbharu/hideout/ap/Key.kt

@@ -17,5 +17,23 @@ open class Key : Object{
         this.publicKeyPem = publicKeyPem
     }
 
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other !is Key) return false
+        if (!super.equals(other)) return false
+
+        if (id != other.id) return false
+        if (owner != other.owner) return false
+        return publicKeyPem == other.publicKeyPem
+    }
+
+    override fun hashCode(): Int {
+        var result = super.hashCode()
+        result = 31 * result + (id?.hashCode() ?: 0)
+        result = 31 * result + (owner?.hashCode() ?: 0)
+        result = 31 * result + (publicKeyPem?.hashCode() ?: 0)
+        return result
+    }
+
 
 }

src/main/kotlin/dev/usbharu/hideout/ap/Object.kt

@@ -24,6 +24,22 @@ open class Object : JsonLd {
             return toMutableList.distinct()
         }
     }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other !is Object) return false
+
+        if (type != other.type) return false
+        return name == other.name
+    }
+
+    override fun hashCode(): Int {
+        var result = type.hashCode()
+        result = 31 * result + (name?.hashCode() ?: 0)
+        return result
+    }
+
+
 }
 
 public class TypeSerializer : JsonSerializer<List<String>>() {

src/main/kotlin/dev/usbharu/hideout/ap/Person.kt

@@ -32,4 +32,31 @@ open class Person : Object {
         this.publicKey =  publicKey
     }
 
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other !is Person) return false
+
+        if (id != other.id) return false
+        if (preferredUsername != other.preferredUsername) return false
+        if (summary != other.summary) return false
+        if (inbox != other.inbox) return false
+        if (outbox != other.outbox) return false
+        if (url != other.url) return false
+        if (icon != other.icon) return false
+        return publicKey == other.publicKey
+    }
+
+    override fun hashCode(): Int {
+        var result = id?.hashCode() ?: 0
+        result = 31 * result + (preferredUsername?.hashCode() ?: 0)
+        result = 31 * result + (summary?.hashCode() ?: 0)
+        result = 31 * result + (inbox?.hashCode() ?: 0)
+        result = 31 * result + (outbox?.hashCode() ?: 0)
+        result = 31 * result + (url?.hashCode() ?: 0)
+        result = 31 * result + (icon?.hashCode() ?: 0)
+        result = 31 * result + (publicKey?.hashCode() ?: 0)
+        return result
+    }
+
+
 }

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

@@ -5,6 +5,7 @@ import dev.usbharu.hideout.routing.activitypub.outbox
 import dev.usbharu.hideout.routing.activitypub.usersAP
 import dev.usbharu.hideout.routing.wellknown.webfinger
 import dev.usbharu.hideout.service.activitypub.ActivityPubService
+import dev.usbharu.hideout.service.activitypub.ActivityPubUserService
 import dev.usbharu.hideout.service.impl.UserService
 import dev.usbharu.hideout.service.signature.HttpSignatureVerifyService
 import io.ktor.server.application.*
@@ -14,13 +15,14 @@ import io.ktor.server.routing.*
 fun Application.configureRouting(
     httpSignatureVerifyService: HttpSignatureVerifyService,
     activityPubService: ActivityPubService,
-    userService:UserService
+    userService:UserService,
+    activityPubUserService: ActivityPubUserService
 ) {
     install(AutoHeadResponse)
     routing {
         inbox(httpSignatureVerifyService, activityPubService)
         outbox()
-        usersAP(activityPubService)
+        usersAP(activityPubUserService)
         webfinger(userService)
     }
 }

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

@@ -1,5 +1,11 @@
 package dev.usbharu.hideout.plugins
 
+import com.fasterxml.jackson.annotation.JsonInclude
+import com.fasterxml.jackson.annotation.JsonSetter
+import com.fasterxml.jackson.annotation.Nulls
+import com.fasterxml.jackson.databind.DeserializationFeature
+import dev.usbharu.hideout.util.HttpUtil.Activity
+import io.ktor.http.*
 import io.ktor.serialization.jackson.*
 import io.ktor.server.application.*
 import io.ktor.server.plugins.contentnegotiation.*
@@ -8,6 +14,11 @@ import io.ktor.server.routing.*
 
 fun Application.configureSerialization() {
     install(ContentNegotiation) {
-        jackson()
+        jackson {
+            enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY)
+            setSerializationInclusion(JsonInclude.Include.NON_EMPTY)
+            configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
+            configOverride(List::class.java).setSetterInfo(JsonSetter.Value.forContentNulls(Nulls.AS_EMPTY))
+        }
     }
 }

src/main/kotlin/dev/usbharu/hideout/routing/activitypub/UserRouting.kt

@@ -1,6 +1,9 @@
 package dev.usbharu.hideout.routing.activitypub
 
+import dev.usbharu.hideout.config.Config
+import dev.usbharu.hideout.exception.ParameterNotExistException
 import dev.usbharu.hideout.service.activitypub.ActivityPubService
+import dev.usbharu.hideout.service.activitypub.ActivityPubUserService
 import dev.usbharu.hideout.util.HttpUtil.Activity
 import io.ktor.http.*
 import io.ktor.server.application.*
@@ -8,11 +11,13 @@ import io.ktor.server.request.*
 import io.ktor.server.response.*
 import io.ktor.server.routing.*
 
-fun Routing.usersAP(activityPubService: ActivityPubService){
+fun Routing.usersAP(activityPubUserService:ActivityPubUserService){
     route("/users/{name}"){
         createChild(ContentTypeRouteSelector(ContentType.Application.Activity)).handle {
-
+            val name = call.parameters["name"] ?: throw ParameterNotExistException("Parameter(name='name') does not exist.")
-            call.respond(HttpStatusCode.NotImplemented)
+            val person = activityPubUserService.getPersonByName(name)
+            call.response.header("Content-Type", ContentType.Application.Activity.toString())
+            call.respond(HttpStatusCode.OK,Config.configData.objectMapper.writeValueAsString(person))
         }
     }
 }

src/main/kotlin/dev/usbharu/hideout/service/activitypub/ActivityPubUserService.kt

@@ -0,0 +1,7 @@
+package dev.usbharu.hideout.service.activitypub
+
+import dev.usbharu.hideout.ap.Person
+
+interface ActivityPubUserService {
+    suspend fun getPersonByName(name:String):Person
+}

src/main/kotlin/dev/usbharu/hideout/service/activitypub/ActivityPubUserServiceImpl.kt

@@ -0,0 +1,40 @@
+package dev.usbharu.hideout.service.activitypub
+
+import dev.usbharu.hideout.ap.Image
+import dev.usbharu.hideout.ap.Key
+import dev.usbharu.hideout.ap.Person
+import dev.usbharu.hideout.config.Config
+import dev.usbharu.hideout.service.IUserAuthService
+import dev.usbharu.hideout.service.impl.UserService
+
+class ActivityPubUserServiceImpl(private val userService: UserService, private val userAuthService: IUserAuthService) :
+    ActivityPubUserService {
+    override suspend fun getPersonByName(name: String): Person {
+        val userEntity = userService.findByName(name)
+        val userAuthEntity = userAuthService.findByUserId(userEntity.id)
+        val userUrl = "${Config.configData.url}/users$name"
+        return Person(
+            type = emptyList(),
+            name = userEntity.name,
+            id = userUrl,
+            preferredUsername = name,
+            summary = userEntity.description,
+            inbox = "$userUrl/inbox",
+            outbox = "$userUrl/outbox",
+            url = userUrl,
+            icon = Image(
+                type = emptyList(),
+                name = "$userUrl/icon.png",
+                mediaType = "image/png",
+                url = "$userUrl/icon.png"
+            ),
+            publicKey = Key(
+                type = emptyList(),
+                name = "Public Key",
+                id = "$userUrl#pubkey",
+                owner = userUrl,
+                publicKeyPem = userAuthEntity.publicKey
+            )
+        )
+    }
+}

src/test/kotlin/dev/usbharu/hideout/routing/activitypub/UsersAPTest.kt

@@ -1,16 +1,30 @@
 package dev.usbharu.hideout.routing.activitypub
 
+import com.fasterxml.jackson.annotation.JsonInclude
+import com.fasterxml.jackson.annotation.JsonSetter
+import com.fasterxml.jackson.annotation.Nulls
+import com.fasterxml.jackson.databind.DeserializationFeature
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import dev.usbharu.hideout.ap.Image
+import dev.usbharu.hideout.ap.Key
+import dev.usbharu.hideout.ap.Person
+import dev.usbharu.hideout.config.Config
 import dev.usbharu.hideout.domain.model.ActivityPubResponse
 import dev.usbharu.hideout.domain.model.User
 import dev.usbharu.hideout.domain.model.UserEntity
 import dev.usbharu.hideout.plugins.configureRouting
+import dev.usbharu.hideout.plugins.configureSerialization
 import dev.usbharu.hideout.repository.IUserRepository
 import dev.usbharu.hideout.service.activitypub.ActivityPubService
+import dev.usbharu.hideout.service.activitypub.ActivityPubUserService
 import dev.usbharu.hideout.service.activitypub.ActivityType
 import dev.usbharu.hideout.service.impl.UserService
 import dev.usbharu.hideout.service.signature.HttpSignatureVerifyService
 import dev.usbharu.hideout.util.HttpUtil.Activity
+import io.ktor.client.call.*
 import io.ktor.client.request.*
+import io.ktor.client.statement.*
 import io.ktor.http.*
 import io.ktor.server.config.*
 import io.ktor.server.testing.*
@@ -25,7 +39,32 @@ class UsersAPTest {
         environment {
             config = ApplicationConfig("empty.conf")
         }
+        val person = Person(
+            type = emptyList(),
+            name = "test",
+            id = "http://example.com/users/test",
+            preferredUsername = "test",
+            summary = "test user",
+            inbox = "http://example.com/users/test/inbox",
+            outbox = "http://example.com/users/test/outbox",
+            url = "http://example.com/users/test",
+            icon = Image(
+                type = emptyList(),
+                name = "http://example.com/users/test/icon.png",
+                mediaType = "image/png",
+                url = "http://example.com/users/test/icon.png"
+            ),
+            publicKey = Key(
+                type = emptyList(),
+                name = "Public Key",
+                id = "http://example.com/users/test#pubkey",
+                owner = "https://example.com/users/test",
+                publicKeyPem = "-----BEGIN PUBLIC KEY-----\n\n-----END PUBLIC KEY-----"
+            )
+        )
+        person.context = listOf("https://www.w3.org/ns/activitystreams")
         application {
+            configureSerialization()
             configureRouting(object : HttpSignatureVerifyService {
                 override fun verify(headers: Headers): Boolean {
                     return true
@@ -78,12 +117,26 @@ class UsersAPTest {
                 override suspend fun findFollowersById(id: Long): List<UserEntity> {
                     TODO("Not yet implemented")
                 }
-            }))
+            }), object : ActivityPubUserService {
+                override suspend fun getPersonByName(name: String): Person {
+                    return person
+                }
+
+            })
         }
         client.get("/users/test") {
             accept(ContentType.Application.Activity)
         }.let {
-            assertEquals(HttpStatusCode.NotImplemented, it.status)
+            val objectMapper = jacksonObjectMapper().enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY)
+                .setSerializationInclusion(JsonInclude.Include.NON_EMPTY)
+                .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
+                objectMapper.configOverride(List::class.java).setSetterInfo(JsonSetter.Value.forValueNulls(
+                    Nulls.AS_EMPTY))
+            val actual = it.bodyAsText()
+            val readValue = objectMapper.readValue<Person>(actual)
+            println(objectMapper.writeValueAsString(person))
+            println(objectMapper.writeValueAsString(readValue))
+            assertEquals(person, readValue)
         }
     }
 }