feat: Instanceの重複チェックを追加

src/main/kotlin/dev/usbharu/hideout/activitypub/service/objects/user/APUserService.kt

@@ -124,7 +124,8 @@ class APUserServiceImpl(
                         ?: throw IllegalActivityPubObjectException("publicKey is null"),
                     keyId = person.publicKey?.id ?: throw IllegalActivityPubObjectException("publicKey keyId is null"),
                     following = person.following,
-                    followers = person.followers
+                    followers = person.followers,
+                    sharedInbox = person.endpoints["sharedInbox"]
                 )
             )
         }

src/main/kotlin/dev/usbharu/hideout/core/domain/model/instance/Nodeinfo2_0.kt

@@ -0,0 +1,22 @@
+package dev.usbharu.hideout.core.domain.model.instance
+
+class Nodeinfo2_0 {
+    var metadata: Metadata? = null
+    var software: Software? = null
+
+    protected constructor()
+}
+
+class Metadata {
+    var nodeName: String? = null
+    var nodeDescription: String? = null
+
+    protected constructor()
+}
+
+class Software {
+    var name: String? = null
+    var version: String? = null
+
+    protected constructor()
+}

src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedquery/InstanceQueryServiceImpl.kt

@@ -0,0 +1,16 @@
+package dev.usbharu.hideout.core.infrastructure.exposedquery
+
+import dev.usbharu.hideout.core.domain.exception.FailedToGetResourcesException
+import dev.usbharu.hideout.core.infrastructure.exposedrepository.Instance
+import dev.usbharu.hideout.core.infrastructure.exposedrepository.toInstance
+import dev.usbharu.hideout.core.query.InstanceQueryService
+import dev.usbharu.hideout.util.singleOr
+import org.jetbrains.exposed.sql.select
+import org.springframework.stereotype.Repository
+import dev.usbharu.hideout.core.domain.model.instance.Instance as InstanceEntity
+
+@Repository
+class InstanceQueryServiceImpl : InstanceQueryService {
+    override suspend fun findByUrl(url: String): InstanceEntity = Instance.select { Instance.url eq url }
+        .singleOr { FailedToGetResourcesException("url is doesn't exist") }.toInstance()
+}

src/main/kotlin/dev/usbharu/hideout/core/query/InstanceQueryService.kt

@@ -0,0 +1,7 @@
+package dev.usbharu.hideout.core.query
+
+import dev.usbharu.hideout.core.domain.model.instance.Instance
+
+interface InstanceQueryService {
+    suspend fun findByUrl(url: String): Instance
+}

src/main/kotlin/dev/usbharu/hideout/core/service/instance/InstanceService.kt

@@ -1,18 +1,21 @@
 package dev.usbharu.hideout.core.service.instance
 
 import com.fasterxml.jackson.databind.ObjectMapper
-import dev.usbharu.hideout.activitypub.domain.model.nodeinfo.Nodeinfo2_0
+import dev.usbharu.hideout.core.domain.exception.FailedToGetResourcesException
 import dev.usbharu.hideout.core.domain.model.instance.Instance
 import dev.usbharu.hideout.core.domain.model.instance.InstanceRepository
 import dev.usbharu.hideout.core.domain.model.instance.Nodeinfo
+import dev.usbharu.hideout.core.domain.model.instance.Nodeinfo2_0
+import dev.usbharu.hideout.core.query.InstanceQueryService
 import dev.usbharu.hideout.core.service.resource.ResourceResolveService
+import org.slf4j.LoggerFactory
 import org.springframework.beans.factory.annotation.Qualifier
 import org.springframework.stereotype.Service
 import java.net.URL
 import java.time.Instant
 
 interface InstanceService {
-    suspend fun fetchInstance(url: String): Instance
+    suspend fun fetchInstance(url: String, sharedInbox: String? = null): Instance
     suspend fun createNewInstance(instanceCreateDto: InstanceCreateDto): Instance
 }
 
@@ -21,11 +24,20 @@ interface InstanceService {
 class InstanceServiceImpl(
     private val instanceRepository: InstanceRepository,
     private val resourceResolveService: ResourceResolveService,
-    @Qualifier("activitypub") private val objectMapper: ObjectMapper
+    @Qualifier("activitypub") private val objectMapper: ObjectMapper,
+    private val instanceQueryService: InstanceQueryService
 ) : InstanceService {
-    override suspend fun fetchInstance(url: String): Instance {
+    override suspend fun fetchInstance(url: String, sharedInbox: String?): Instance {
         val u = URL(url)
         val resolveInstanceUrl = u.protocol + "://" + u.host
+
+        try {
+            return instanceQueryService.findByUrl(url)
+        } catch (e: FailedToGetResourcesException) {
+            logger.info("Instance not found. try fetch instance info. url: {}", resolveInstanceUrl)
+            logger.debug("Failed to get resources. url: {}", resolveInstanceUrl, e)
+        }
+
         val nodeinfoJson = resourceResolveService.resolve("$resolveInstanceUrl/.well-known/nodeinfo").bodyAsText()
         val nodeinfo = objectMapper.readValue(nodeinfoJson, Nodeinfo::class.java)
         val nodeinfoPathMap = nodeinfo.links.associate { it.rel to it.href }
@@ -40,13 +52,32 @@ class InstanceServiceImpl(
                     )
 
                     val instanceCreateDto = InstanceCreateDto(
-                        nodeinfo20.metadata.nodeName,
+                        nodeinfo20.metadata?.nodeName,
-                        nodeinfo20.metadata.nodeDescription,
+                        nodeinfo20.metadata?.nodeDescription,
                         resolveInstanceUrl,
                         resolveInstanceUrl + "/favicon.ico",
-                        null,
+                        sharedInbox,
-                        nodeinfo20.software.name,
+                        nodeinfo20.software?.name,
-                        nodeinfo20.software.version
+                        nodeinfo20.software?.version
+                    )
+                    return createNewInstance(instanceCreateDto)
+                }
+
+                // TODO: 多分2.0と2.1で互換性有るのでそのまま使うけどなおす
+                "http://nodeinfo.diaspora.software/ns/schema/2.1" -> {
+                    val nodeinfo20 = objectMapper.readValue(
+                        resourceResolveService.resolve(value!!).bodyAsText(),
+                        Nodeinfo2_0::class.java
+                    )
+
+                    val instanceCreateDto = InstanceCreateDto(
+                        nodeinfo20.metadata?.nodeName,
+                        nodeinfo20.metadata?.nodeDescription,
+                        resolveInstanceUrl,
+                        resolveInstanceUrl + "/favicon.ico",
+                        sharedInbox,
+                        nodeinfo20.software?.name,
+                        nodeinfo20.software?.version
                     )
                     return createNewInstance(instanceCreateDto)
                 }
@@ -78,4 +109,8 @@ class InstanceServiceImpl(
         instanceRepository.save(instance)
         return instance
     }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(InstanceServiceImpl::class.java)
+    }
 }

src/main/kotlin/dev/usbharu/hideout/core/service/user/RemoteUserCreateDto.kt

@@ -11,5 +11,6 @@ data class RemoteUserCreateDto(
     val publicKey: String,
     val keyId: String,
     val followers: String?,
-    val following: String?
+    val following: String?,
+    val sharedInbox: String?
 )

src/main/kotlin/dev/usbharu/hideout/core/service/user/UserServiceImpl.kt

@@ -57,7 +57,7 @@ class UserServiceImpl(
     }
 
     override suspend fun createRemoteUser(user: RemoteUserCreateDto): User {
-        instanceService.fetchInstance(user.url)
+        instanceService.fetchInstance(user.url, user.sharedInbox)
 
         val nextId = userRepository.nextId()
         val userEntity = userBuilder.of(