From f4d30e837e5ab229f1bf482097a871dd15f14009 Mon Sep 17 00:00:00 2001
From: usbharu <64310155+usbharu@users.noreply.github.com>
Date: Mon, 12 Aug 2024 21:38:07 +0900
Subject: [PATCH] =?UTF-8?q?feat:=20=E6=8A=95=E7=A8=BF=E8=A9=B3=E7=B4=B0?=
 =?UTF-8?q?=E3=83=9A=E3=83=BC=E3=82=B8=E3=82=92=E4=BD=9C=E6=88=90?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../MigrationLocalActorApplicationService.kt  |  4 +-
 ...StartDeleteLocalActorApplicationService.kt |  4 +-
 .../UserDeleteFilterApplicationService.kt     |  4 +-
 .../filter/UserGetFilterApplicationService.kt |  4 +-
 .../UserRegisterFilterApplicationService.kt   |  4 +-
 .../GetLocalInstanceApplicationService.kt     | 31 +++++++
 .../core/application/instance/Instance.kt     | 14 +++
 .../media/UploadMediaApplicationService.kt    |  4 +-
 .../core/application/post/ActorDetail.kt      | 35 +++++++
 .../post/DeleteLocalPostApplicationService.kt |  4 +-
 .../core/application/post/GetPostDetail.kt    |  3 +
 .../post/GetPostDetailApplicationService.kt   | 91 +++++++++++++++++++
 .../core/application/post/MediaDetail.kt      | 28 ++++++
 .../core/application/post/PostDetail.kt       | 60 ++++++++++++
 .../RegisterLocalPostApplicationService.kt    |  4 +-
 .../post/UpdateLocalNoteApplicationService.kt |  4 +-
 ...erAcceptFollowRequestApplicationService.kt |  4 +-
 .../block/UserBlockApplicationService.kt      |  4 +-
 .../UserFollowRequestApplicationService.kt    |  4 +-
 .../get/GetRelationshipApplicationService.kt  |  4 +-
 .../mute/UserMuteApplicationService.kt        |  4 +-
 ...erRejectFollowRequestApplicationService.kt |  4 +-
 ...erRemoveFromFollowersApplicationService.kt |  4 +-
 .../unblock/UserUnblockApplicationService.kt  |  4 +-
 .../UserUnfollowApplicationService.kt         |  4 +-
 .../unmute/UserUnmuteApplicationService.kt    |  4 +-
 .../LocalUserAbstractApplicationService.kt    |  6 +-
 ...dTimelineRelationshipApplicationService.kt |  4 +-
 .../hideout/core/config/ApplicationConfig.kt  |  2 +-
 .../hideout/core/config/SecurityConfig.kt     |  1 +
 .../domain/model/media/MediaRepository.kt     |  1 +
 .../hideout/core/domain/model/post/Post.kt    |  2 +
 .../principal/{FromApi.kt => LocalUser.kt}    |  2 +-
 .../infrastructure/exposed/PostQueryMapper.kt |  8 +-
 .../ExposedPostRepository.kt                  |  1 +
 .../exposedrepository/MediaRepositoryImpl.kt  |  9 ++
 ...SecurityFormLoginPrincipalContextHolder.kt | 35 +++++++
 ...ingSecurityOauth2PrincipalContextHolder.kt |  6 +-
 .../interfaces/web/posts/PostsController.kt   | 27 ++++++
 .../src/main/resources/application.yml        |  2 +
 .../messages/hideout-web-messages.properties  | 10 ++
 .../hideout-web-messages_en_US.properties     |  9 ++
 .../hideout-web-messages_ja_JP.properties     | 10 ++
 .../resources/templates/fragments-post.html   | 53 +++++++++++
 .../main/resources/templates/postById.html    | 32 +++++++
 ...grationLocalActorApplicationServiceTest.kt | 14 +--
 ...tDeleteLocalActorApplicationServiceTest.kt |  8 +-
 .../UserDeleteFilterApplicationServiceTest.kt |  8 +-
 .../UserGetFilterApplicationServiceTest.kt    |  8 +-
 .../DeleteLocalPostApplicationServiceTest.kt  |  6 +-
 ...RegisterLocalPostApplicationServiceTest.kt |  6 +-
 .../UpdateLocalNoteApplicationServiceTest.kt  | 12 +--
 ...ceptFollowRequestApplicationServiceTest.kt |  8 +-
 ...LocalUserAbstractApplicationServiceTest.kt |  4 +-
 .../post/DefaultPostReadAccessControlTest.kt  | 14 +--
 .../accounts/GetAccountApplicationService.kt  |  4 +-
 .../DeleteFilterV1ApplicationService.kt       |  4 +-
 .../interfaces/api/SpringFilterApi.kt         |  4 +-
 .../mastodon/interfaces/api/SpringMediaApi.kt |  4 +-
 .../interfaces/api/SpringStatusApi.kt         |  4 +-
 .../StatusQueryServiceImplTest.kt             |  4 +-
 61 files changed, 562 insertions(+), 108 deletions(-)
 create mode 100644 hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/instance/GetLocalInstanceApplicationService.kt
 create mode 100644 hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/instance/Instance.kt
 create mode 100644 hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/ActorDetail.kt
 create mode 100644 hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/GetPostDetail.kt
 create mode 100644 hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/GetPostDetailApplicationService.kt
 create mode 100644 hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/MediaDetail.kt
 create mode 100644 hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/PostDetail.kt
 rename hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/support/principal/{FromApi.kt => LocalUser.kt} (95%)
 create mode 100644 hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/springframework/SpringSecurityFormLoginPrincipalContextHolder.kt
 create mode 100644 hideout-core/src/main/kotlin/dev/usbharu/hideout/core/interfaces/web/posts/PostsController.kt
 create mode 100644 hideout-core/src/main/resources/messages/hideout-web-messages.properties
 create mode 100644 hideout-core/src/main/resources/messages/hideout-web-messages_en_US.properties
 create mode 100644 hideout-core/src/main/resources/messages/hideout-web-messages_ja_JP.properties
 create mode 100644 hideout-core/src/main/resources/templates/fragments-post.html
 create mode 100644 hideout-core/src/main/resources/templates/postById.html

diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/MigrationLocalActorApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/MigrationLocalActorApplicationService.kt
index 9e0a01e6..a9198f67 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/MigrationLocalActorApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/MigrationLocalActorApplicationService.kt
@@ -22,7 +22,7 @@ import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationS
 import dev.usbharu.hideout.core.application.shared.Transaction
 import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
 import dev.usbharu.hideout.core.domain.service.actor.local.AccountMigrationCheck.*
 import dev.usbharu.hideout.core.domain.service.actor.local.LocalActorMigrationCheckDomainService
@@ -37,7 +37,7 @@ class MigrationLocalActorApplicationService(
     private val userDetailRepository: UserDetailRepository,
 ) : LocalUserAbstractApplicationService<MigrationLocalActor, Unit>(transaction, logger) {
 
-    override suspend fun internalExecute(command: MigrationLocalActor, principal: FromApi) {
+    override suspend fun internalExecute(command: MigrationLocalActor, principal: LocalUser) {
         if (command.from != principal.actorId.id) {
             throw PermissionDeniedException()
         }
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/StartDeleteLocalActorApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/StartDeleteLocalActorApplicationService.kt
index 9fd8669b..288fdf22 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/StartDeleteLocalActorApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/actor/StartDeleteLocalActorApplicationService.kt
@@ -21,7 +21,7 @@ import dev.usbharu.hideout.core.application.exception.PermissionDeniedException
 import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
 import dev.usbharu.hideout.core.application.shared.Transaction
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -30,7 +30,7 @@ class StartDeleteLocalActorApplicationService(
     transaction: Transaction,
     private val actorRepository: ActorRepository,
 ) : LocalUserAbstractApplicationService<DeleteLocalActor, Unit>(transaction, logger) {
-    override suspend fun internalExecute(command: DeleteLocalActor, principal: FromApi) {
+    override suspend fun internalExecute(command: DeleteLocalActor, principal: LocalUser) {
         if (command.actorId != principal.actorId) {
             throw PermissionDeniedException()
         }
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserDeleteFilterApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserDeleteFilterApplicationService.kt
index 9333ec83..19b07618 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserDeleteFilterApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserDeleteFilterApplicationService.kt
@@ -21,7 +21,7 @@ import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationS
 import dev.usbharu.hideout.core.application.shared.Transaction
 import dev.usbharu.hideout.core.domain.model.filter.FilterId
 import dev.usbharu.hideout.core.domain.model.filter.FilterRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -31,7 +31,7 @@ class UserDeleteFilterApplicationService(private val filterRepository: FilterRep
         transaction,
         logger
     ) {
-    override suspend fun internalExecute(command: DeleteFilter, principal: FromApi) {
+    override suspend fun internalExecute(command: DeleteFilter, principal: LocalUser) {
         val filter =
             filterRepository.findByFilterId(FilterId(command.filterId)) ?: throw IllegalArgumentException("not found")
         if (filter.userDetailId != principal.userDetailId) {
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserGetFilterApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserGetFilterApplicationService.kt
index cecb5a5d..1038fe2a 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserGetFilterApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserGetFilterApplicationService.kt
@@ -21,7 +21,7 @@ import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationS
 import dev.usbharu.hideout.core.application.shared.Transaction
 import dev.usbharu.hideout.core.domain.model.filter.FilterId
 import dev.usbharu.hideout.core.domain.model.filter.FilterRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -31,7 +31,7 @@ class UserGetFilterApplicationService(private val filterRepository: FilterReposi
         transaction,
         logger
     ) {
-    override suspend fun internalExecute(command: GetFilter, principal: FromApi): Filter {
+    override suspend fun internalExecute(command: GetFilter, principal: LocalUser): Filter {
         val filter =
             filterRepository.findByFilterId(FilterId(command.filterId)) ?: throw IllegalArgumentException("Not Found")
         if (filter.userDetailId != principal.userDetailId) {
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserRegisterFilterApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserRegisterFilterApplicationService.kt
index bf12c041..8f4a45ec 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserRegisterFilterApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/filter/UserRegisterFilterApplicationService.kt
@@ -20,7 +20,7 @@ import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationS
 import dev.usbharu.hideout.core.application.shared.Transaction
 import dev.usbharu.hideout.core.domain.model.filter.*
 import dev.usbharu.hideout.core.domain.model.filter.FilterKeyword
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.shared.id.IdGenerateService
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
@@ -36,7 +36,7 @@ class UserRegisterFilterApplicationService(
         logger
     ) {
 
-    override suspend fun internalExecute(command: RegisterFilter, principal: FromApi): Filter {
+    override suspend fun internalExecute(command: RegisterFilter, principal: LocalUser): Filter {
 
         val filter = dev.usbharu.hideout.core.domain.model.filter.Filter.create(
             id = FilterId(idGenerateService.generateId()),
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/instance/GetLocalInstanceApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/instance/GetLocalInstanceApplicationService.kt
new file mode 100644
index 00000000..19c32b90
--- /dev/null
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/instance/GetLocalInstanceApplicationService.kt
@@ -0,0 +1,31 @@
+package dev.usbharu.hideout.core.application.instance
+
+import dev.usbharu.hideout.core.application.exception.InternalServerException
+import dev.usbharu.hideout.core.application.shared.AbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.config.ApplicationConfig
+import dev.usbharu.hideout.core.domain.model.instance.InstanceRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.Principal
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class GetLocalInstanceApplicationService(
+    private val applicationConfig: ApplicationConfig,
+    private val instanceRepository: InstanceRepository,
+    transaction: Transaction
+) :
+    AbstractApplicationService<Unit, Instance>(
+        transaction, logger
+    ) {
+    override suspend fun internalExecute(command: Unit, principal: Principal): Instance {
+        val instance = (instanceRepository.findByUrl(applicationConfig.url.toURI())
+            ?: throw InternalServerException("Local instance not found."))
+
+        return Instance.of(instance)
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(GetLocalInstanceApplicationService::class.java)
+    }
+}
\ No newline at end of file
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/instance/Instance.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/instance/Instance.kt
new file mode 100644
index 00000000..80adde56
--- /dev/null
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/instance/Instance.kt
@@ -0,0 +1,14 @@
+package dev.usbharu.hideout.core.application.instance
+
+import dev.usbharu.hideout.core.domain.model.instance.Instance
+import java.net.URI
+
+data class Instance(val id: Long, val name: String, val url: URI, val description: String) {
+    companion object {
+        fun of(instance: Instance): dev.usbharu.hideout.core.application.instance.Instance {
+            return Instance(
+                instance.id.instanceId, instance.name.name, instance.url, instance.description.description
+            )
+        }
+    }
+}
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/media/UploadMediaApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/media/UploadMediaApplicationService.kt
index 4773f60f..c3b3379a 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/media/UploadMediaApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/media/UploadMediaApplicationService.kt
@@ -19,7 +19,7 @@ package dev.usbharu.hideout.core.application.media
 import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
 import dev.usbharu.hideout.core.application.shared.Transaction
 import dev.usbharu.hideout.core.domain.model.media.*
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.shared.id.IdGenerateService
 import dev.usbharu.hideout.core.external.media.MediaProcessor
 import dev.usbharu.hideout.core.external.mediastore.MediaStore
@@ -39,7 +39,7 @@ class UploadMediaApplicationService(
     transaction,
     logger
 ) {
-    override suspend fun internalExecute(command: UploadMedia, principal: FromApi): Media {
+    override suspend fun internalExecute(command: UploadMedia, principal: LocalUser): Media {
         val process = mediaProcessor.process(command.path, command.name, null)
         val id = idGenerateService.generateId()
         val thumbnailUri = if (process.thumbnailPath != null) {
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/ActorDetail.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/ActorDetail.kt
new file mode 100644
index 00000000..5513227f
--- /dev/null
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/ActorDetail.kt
@@ -0,0 +1,35 @@
+package dev.usbharu.hideout.core.application.post
+
+
+import dev.usbharu.hideout.core.domain.model.actor.Actor
+import dev.usbharu.hideout.core.domain.model.instance.Instance
+import dev.usbharu.hideout.core.domain.model.media.Media
+import java.net.URI
+
+data class ActorDetail(
+    val actorId: Long,
+    val instanceId: Long,
+    val instanceName: String,
+    val name: String,
+    val domain: String,
+    val screenName: String,
+    val url: URI,
+    val locked: Boolean,
+    val icon: URI?,
+) {
+    companion object {
+        fun of(actor: Actor, instance: Instance, iconMedia: Media?): ActorDetail {
+            return ActorDetail(
+                actor.id.id,
+                actor.instance.instanceId,
+                instance.name.name,
+                actor.name.name,
+                actor.domain.domain,
+                actor.screenName.screenName,
+                actor.url,
+                actor.locked,
+                iconMedia?.url
+            )
+        }
+    }
+}
\ No newline at end of file
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/DeleteLocalPostApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/DeleteLocalPostApplicationService.kt
index 511f9629..00c41804 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/DeleteLocalPostApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/DeleteLocalPostApplicationService.kt
@@ -22,7 +22,7 @@ import dev.usbharu.hideout.core.application.shared.Transaction
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.post.PostId
 import dev.usbharu.hideout.core.domain.model.post.PostRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -32,7 +32,7 @@ class DeleteLocalPostApplicationService(
     private val actorRepository: ActorRepository, transaction: Transaction,
 ) : LocalUserAbstractApplicationService<DeleteLocalPost, Unit>(transaction, logger) {
 
-    override suspend fun internalExecute(command: DeleteLocalPost, principal: FromApi) {
+    override suspend fun internalExecute(command: DeleteLocalPost, principal: LocalUser) {
         val findById = postRepository.findById(PostId(command.postId))!!
         if (findById.actorId != principal.actorId) {
             throw PermissionDeniedException()
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/GetPostDetail.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/GetPostDetail.kt
new file mode 100644
index 00000000..796e167b
--- /dev/null
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/GetPostDetail.kt
@@ -0,0 +1,3 @@
+package dev.usbharu.hideout.core.application.post
+
+data class GetPostDetail(val postId: Long)
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/GetPostDetailApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/GetPostDetailApplicationService.kt
new file mode 100644
index 00000000..55fcf60e
--- /dev/null
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/GetPostDetailApplicationService.kt
@@ -0,0 +1,91 @@
+package dev.usbharu.hideout.core.application.post
+
+import dev.usbharu.hideout.core.application.exception.InternalServerException
+import dev.usbharu.hideout.core.application.exception.PermissionDeniedException
+import dev.usbharu.hideout.core.application.shared.AbstractApplicationService
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.actor.Actor
+import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
+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.media.Media
+import dev.usbharu.hideout.core.domain.model.media.MediaRepository
+import dev.usbharu.hideout.core.domain.model.post.PostId
+import dev.usbharu.hideout.core.domain.model.post.PostRepository
+import dev.usbharu.hideout.core.domain.model.support.principal.Principal
+import dev.usbharu.hideout.core.domain.service.post.IPostReadAccessControl
+import org.slf4j.LoggerFactory
+import org.springframework.stereotype.Service
+
+@Service
+class GetPostDetailApplicationService(
+    transaction: Transaction,
+    private val postRepository: PostRepository,
+    private val actorRepository: ActorRepository,
+    private val instanceRepository: InstanceRepository,
+    private val mediaRepository: MediaRepository,
+    private val iPostReadAccessControl: IPostReadAccessControl
+) : AbstractApplicationService<GetPostDetail, PostDetail>(
+    transaction, logger
+) {
+    override suspend fun internalExecute(command: GetPostDetail, principal: Principal): PostDetail {
+        val post = postRepository.findById(PostId(command.postId))
+            ?: throw IllegalArgumentException("Post ${command.postId} not found.")
+        if (iPostReadAccessControl.isAllow(post, principal).not()) {
+            throw PermissionDeniedException()
+        }
+        val actor =
+            actorRepository.findById(post.actorId) ?: throw InternalServerException("Actor ${post.actorId} not found.")
+        val instance = instanceRepository.findById(post.instanceId)
+            ?: throw InternalServerException("Instance ${post.instanceId} not found.")
+
+        val iconMedia = actor.icon?.let { mediaRepository.findById(it) }
+
+        val mediaList = mediaRepository.findByIds(post.mediaIds)
+
+        return PostDetail.of(
+            post,
+            actor,
+            instance,
+            iconMedia,
+            mediaList,
+            post.replyId?.let { fetchChild(it, actor, instance, iconMedia, principal) },
+            post.repostId?.let { fetchChild(it, actor, instance, iconMedia, principal) },
+            post.moveTo?.let { fetchChild(it, actor, instance, iconMedia, principal) },
+        )
+    }
+
+    private suspend fun fetchChild(
+        postId: PostId,
+        actor: Actor,
+        instance: Instance,
+        iconMedia: Media?,
+        principal: Principal
+    ): PostDetail? {
+        val post = postRepository.findById(postId) ?: return null
+
+        if (iPostReadAccessControl.isAllow(post, principal).not()) {
+            throw PermissionDeniedException()
+        }
+
+        val (first, second: Instance, third) = if (actor.id != post.actorId) {
+            Triple(
+                actorRepository.findById(post.actorId) ?: return null,
+                instanceRepository.findById(actor.instance) ?: return null,
+                actor.icon?.let { mediaRepository.findById(it) }
+            )
+        } else {
+            Triple(actor, instance, iconMedia)
+        }
+
+        val mediaList = mediaRepository.findByIds(post.mediaIds)
+        return PostDetail.of(
+            post, first, second, third, mediaList
+        )
+
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(GetPostDetailApplicationService::class.java)
+    }
+}
\ No newline at end of file
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/MediaDetail.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/MediaDetail.kt
new file mode 100644
index 00000000..3ce780dc
--- /dev/null
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/MediaDetail.kt
@@ -0,0 +1,28 @@
+package dev.usbharu.hideout.core.application.post
+
+import dev.usbharu.hideout.core.domain.model.media.Media
+import java.net.URI
+
+data class MediaDetail(
+    val mediaId: Long,
+    val type: String,
+    val url: URI,
+    val thumbnailUrl: URI?,
+    val sensitive: Boolean,
+    val description: String,
+    val blurhash: String
+) {
+    companion object {
+        fun of(media: Media): MediaDetail {
+            return MediaDetail(
+                media.id.id,
+                media.type.name,
+                media.url,
+                media.thumbnailUrl,
+                false,
+                media.description?.description.orEmpty(),
+                media.blurHash?.hash.orEmpty()
+            )
+        }
+    }
+}
\ No newline at end of file
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/PostDetail.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/PostDetail.kt
new file mode 100644
index 00000000..f3be33d8
--- /dev/null
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/PostDetail.kt
@@ -0,0 +1,60 @@
+package dev.usbharu.hideout.core.application.post
+
+import dev.usbharu.hideout.core.domain.model.actor.Actor
+import dev.usbharu.hideout.core.domain.model.instance.Instance
+import dev.usbharu.hideout.core.domain.model.media.Media
+import dev.usbharu.hideout.core.domain.model.post.Post
+import dev.usbharu.hideout.core.domain.model.post.Visibility
+import java.net.URI
+import java.time.Instant
+
+data class PostDetail(
+    val id: Long,
+    val actor: ActorDetail,
+    val overview: String?,
+    val text: String,
+    val content: String,
+    val createdAt: Instant,
+    val visibility: Visibility,
+    val pureRepost: Boolean,
+    val url: URI,
+    val apId: URI,
+    val repost: PostDetail?,
+    val reply: PostDetail?,
+    val sensitive: Boolean,
+    val deleted: Boolean,
+    val mediaDetailList: List<MediaDetail>,
+    val moveTo: PostDetail?
+) {
+    companion object {
+        fun of(
+            post: Post,
+            actor: Actor,
+            instance: Instance,
+            iconMedia: Media?,
+            mediaList: List<Media>,
+            reply: PostDetail? = null,
+            repost: PostDetail? = null,
+            moveTo: PostDetail? = null,
+        ): PostDetail {
+            return PostDetail(
+                id = post.id.id,
+                actor = ActorDetail.of(actor, instance, iconMedia),
+                overview = post.overview?.overview,
+                text = post.text,
+                content = post.content.content,
+                createdAt = post.createdAt,
+                visibility = post.visibility,
+                pureRepost = post.isPureRepost,
+                url = post.url,
+                apId = post.apId,
+                repost = repost,
+                reply = reply,
+                sensitive = post.sensitive,
+                deleted = false,
+                mediaDetailList = mediaList.map { MediaDetail.of(it) },
+                moveTo = moveTo
+            )
+        }
+    }
+}
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/RegisterLocalPostApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/RegisterLocalPostApplicationService.kt
index 0cc237da..ad950c66 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/RegisterLocalPostApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/RegisterLocalPostApplicationService.kt
@@ -24,7 +24,7 @@ import dev.usbharu.hideout.core.domain.model.media.MediaId
 import dev.usbharu.hideout.core.domain.model.post.PostId
 import dev.usbharu.hideout.core.domain.model.post.PostOverview
 import dev.usbharu.hideout.core.domain.model.post.PostRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.infrastructure.factory.PostFactoryImpl
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
@@ -38,7 +38,7 @@ class RegisterLocalPostApplicationService(
     transaction: Transaction,
 ) : LocalUserAbstractApplicationService<RegisterLocalPost, Long>(transaction, Companion.logger) {
 
-    override suspend fun internalExecute(command: RegisterLocalPost, principal: FromApi): Long {
+    override suspend fun internalExecute(command: RegisterLocalPost, principal: LocalUser): Long {
         val actorId = principal.actorId
 
         val actor = actorRepository.findById(actorId) ?: throw InternalServerException("Actor $actorId not found.")
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/UpdateLocalNoteApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/UpdateLocalNoteApplicationService.kt
index 17bafb70..9c9b4003 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/UpdateLocalNoteApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/post/UpdateLocalNoteApplicationService.kt
@@ -25,7 +25,7 @@ import dev.usbharu.hideout.core.domain.model.media.MediaId
 import dev.usbharu.hideout.core.domain.model.post.PostId
 import dev.usbharu.hideout.core.domain.model.post.PostOverview
 import dev.usbharu.hideout.core.domain.model.post.PostRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailRepository
 import dev.usbharu.hideout.core.infrastructure.factory.PostContentFactoryImpl
 import org.slf4j.LoggerFactory
@@ -40,7 +40,7 @@ class UpdateLocalNoteApplicationService(
     private val actorRepository: ActorRepository,
 ) : LocalUserAbstractApplicationService<UpdateLocalNote, Unit>(transaction, logger) {
 
-    override suspend fun internalExecute(command: UpdateLocalNote, principal: FromApi) {
+    override suspend fun internalExecute(command: UpdateLocalNote, principal: LocalUser) {
         val post = postRepository.findById(PostId(command.postId))
             ?: throw IllegalArgumentException("Post ${command.postId} not found.")
         if (post.actorId != principal.actorId) {
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/acceptfollowrequest/UserAcceptFollowRequestApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/acceptfollowrequest/UserAcceptFollowRequestApplicationService.kt
index 1f17a0df..5a9197ee 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/acceptfollowrequest/UserAcceptFollowRequestApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/acceptfollowrequest/UserAcceptFollowRequestApplicationService.kt
@@ -23,7 +23,7 @@ import dev.usbharu.hideout.core.application.shared.Transaction
 import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -34,7 +34,7 @@ class UserAcceptFollowRequestApplicationService(
     private val actorRepository: ActorRepository,
 ) :
     LocalUserAbstractApplicationService<AcceptFollowRequest, Unit>(transaction, logger) {
-    override suspend fun internalExecute(command: AcceptFollowRequest, principal: FromApi) {
+    override suspend fun internalExecute(command: AcceptFollowRequest, principal: LocalUser) {
 
         val actor = actorRepository.findById(principal.actorId)
             ?: throw InternalServerException("Actor ${principal.actorId} not found")
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/block/UserBlockApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/block/UserBlockApplicationService.kt
index c78b6702..62924469 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/block/UserBlockApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/block/UserBlockApplicationService.kt
@@ -22,7 +22,7 @@ import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.relationship.Relationship
 import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.service.relationship.RelationshipDomainService
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
@@ -35,7 +35,7 @@ class UserBlockApplicationService(
     private val relationshipDomainService: RelationshipDomainService,
 ) :
     LocalUserAbstractApplicationService<Block, Unit>(transaction, logger) {
-    override suspend fun internalExecute(command: Block, principal: FromApi) {
+    override suspend fun internalExecute(command: Block, principal: LocalUser) {
 
 
         val actor = actorRepository.findById(principal.actorId)
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/followrequest/UserFollowRequestApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/followrequest/UserFollowRequestApplicationService.kt
index 21cabd81..e277f786 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/followrequest/UserFollowRequestApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/followrequest/UserFollowRequestApplicationService.kt
@@ -23,7 +23,7 @@ import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.relationship.Relationship
 import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -37,7 +37,7 @@ class UserFollowRequestApplicationService(
     logger
 ) {
 
-    override suspend fun internalExecute(command: FollowRequest, principal: FromApi) {
+    override suspend fun internalExecute(command: FollowRequest, principal: LocalUser) {
         val actor = actorRepository.findById(principal.actorId)
             ?: throw InternalServerException("Actor ${principal.actorId} not found.")
 
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/get/GetRelationshipApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/get/GetRelationshipApplicationService.kt
index 2e3a7b98..e863befd 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/get/GetRelationshipApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/get/GetRelationshipApplicationService.kt
@@ -24,7 +24,7 @@ import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.actorinstancerelationship.ActorInstanceRelationship
 import dev.usbharu.hideout.core.domain.model.actorinstancerelationship.ActorInstanceRelationshipRepository
 import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -39,7 +39,7 @@ class GetRelationshipApplicationService(
         transaction,
         logger
     ) {
-    override suspend fun internalExecute(command: GetRelationship, principal: FromApi): Relationship {
+    override suspend fun internalExecute(command: GetRelationship, principal: LocalUser): Relationship {
         val actor = actorRepository.findById(principal.actorId)
             ?: throw InternalServerException("Actor ${principal.actorId} not found.")
         val targetId = ActorId(command.targetActorId)
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/mute/UserMuteApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/mute/UserMuteApplicationService.kt
index bb330b61..537e4f1d 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/mute/UserMuteApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/mute/UserMuteApplicationService.kt
@@ -24,7 +24,7 @@ import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.relationship.Relationship
 import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -35,7 +35,7 @@ class UserMuteApplicationService(
     private val actorRepository: ActorRepository,
 ) :
     LocalUserAbstractApplicationService<Mute, Unit>(transaction, logger) {
-    override suspend fun internalExecute(command: Mute, principal: FromApi) {
+    override suspend fun internalExecute(command: Mute, principal: LocalUser) {
         val actor = actorRepository.findById(principal.actorId)
             ?: throw InternalServerException("Actor ${principal.actorId} not found.")
 
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/rejectfollowrequest/UserRejectFollowRequestApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/rejectfollowrequest/UserRejectFollowRequestApplicationService.kt
index eac8320a..2301fd2f 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/rejectfollowrequest/UserRejectFollowRequestApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/rejectfollowrequest/UserRejectFollowRequestApplicationService.kt
@@ -23,7 +23,7 @@ import dev.usbharu.hideout.core.application.shared.Transaction
 import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -34,7 +34,7 @@ class UserRejectFollowRequestApplicationService(
     private val actorRepository: ActorRepository,
 ) :
     LocalUserAbstractApplicationService<RejectFollowRequest, Unit>(transaction, logger) {
-    override suspend fun internalExecute(command: RejectFollowRequest, principal: FromApi) {
+    override suspend fun internalExecute(command: RejectFollowRequest, principal: LocalUser) {
         val actor = actorRepository.findById(principal.actorId)
             ?: throw InternalServerException("Actor ${principal.actorId} not found.")
 
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/removefromfollowers/UserRemoveFromFollowersApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/removefromfollowers/UserRemoveFromFollowersApplicationService.kt
index 957b5be2..adce9c61 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/removefromfollowers/UserRemoveFromFollowersApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/removefromfollowers/UserRemoveFromFollowersApplicationService.kt
@@ -24,7 +24,7 @@ import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.relationship.Relationship
 import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -35,7 +35,7 @@ class UserRemoveFromFollowersApplicationService(
     private val actorRepository: ActorRepository,
 ) :
     LocalUserAbstractApplicationService<RemoveFromFollowers, Unit>(transaction, logger) {
-    override suspend fun internalExecute(command: RemoveFromFollowers, principal: FromApi) {
+    override suspend fun internalExecute(command: RemoveFromFollowers, principal: LocalUser) {
         val actor = actorRepository.findById(principal.actorId)
             ?: throw InternalServerException("Actor ${principal.actorId} not found.")
 
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unblock/UserUnblockApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unblock/UserUnblockApplicationService.kt
index efba1a83..1e0e8d38 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unblock/UserUnblockApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unblock/UserUnblockApplicationService.kt
@@ -24,7 +24,7 @@ import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.relationship.Relationship
 import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -35,7 +35,7 @@ class UserUnblockApplicationService(
     private val actorRepository: ActorRepository,
 ) :
     LocalUserAbstractApplicationService<Unblock, Unit>(transaction, logger) {
-    override suspend fun internalExecute(command: Unblock, principal: FromApi) {
+    override suspend fun internalExecute(command: Unblock, principal: LocalUser) {
         val actor = actorRepository.findById(principal.actorId)
             ?: throw InternalServerException("Actor ${principal.actorId} not found.")
 
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unfollow/UserUnfollowApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unfollow/UserUnfollowApplicationService.kt
index 87809a0d..e747fda8 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unfollow/UserUnfollowApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unfollow/UserUnfollowApplicationService.kt
@@ -24,7 +24,7 @@ import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.relationship.Relationship
 import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -35,7 +35,7 @@ class UserUnfollowApplicationService(
     private val actorRepository: ActorRepository,
 ) :
     LocalUserAbstractApplicationService<Unfollow, Unit>(transaction, logger) {
-    override suspend fun internalExecute(command: Unfollow, principal: FromApi) {
+    override suspend fun internalExecute(command: Unfollow, principal: LocalUser) {
         val actor = actorRepository.findById(principal.actorId)
             ?: throw InternalServerException("Actor ${principal.actorId} not found.")
 
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unmute/UserUnmuteApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unmute/UserUnmuteApplicationService.kt
index 5681c066..7c41fcc6 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unmute/UserUnmuteApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/relationship/unmute/UserUnmuteApplicationService.kt
@@ -24,7 +24,7 @@ import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.relationship.Relationship
 import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -39,7 +39,7 @@ class UserUnmuteApplicationService(
         private val logger = LoggerFactory.getLogger(UserBlockApplicationService::class.java)
     }
 
-    override suspend fun internalExecute(command: Unmute, principal: FromApi) {
+    override suspend fun internalExecute(command: Unmute, principal: LocalUser) {
         val actor = actorRepository.findById(principal.actorId)
             ?: throw InternalServerException("Actor ${principal.actorId} not found.")
 
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/shared/LocalUserAbstractApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/shared/LocalUserAbstractApplicationService.kt
index 1bcd4b26..8c4eb0bc 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/shared/LocalUserAbstractApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/shared/LocalUserAbstractApplicationService.kt
@@ -1,18 +1,18 @@
 package dev.usbharu.hideout.core.application.shared
 
 import dev.usbharu.hideout.core.application.exception.PermissionDeniedException
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.support.principal.Principal
 import org.slf4j.Logger
 
 abstract class LocalUserAbstractApplicationService<T : Any, R>(transaction: Transaction, logger: Logger) :
     AbstractApplicationService<T, R>(transaction, logger) {
     override suspend fun internalExecute(command: T, principal: Principal): R {
-        if (principal !is FromApi) {
+        if (principal !is LocalUser) {
             throw PermissionDeniedException()
         }
         return internalExecute(command, principal)
     }
 
-    protected abstract suspend fun internalExecute(command: T, principal: FromApi): R
+    protected abstract suspend fun internalExecute(command: T, principal: LocalUser): R
 }
\ No newline at end of file
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/timeline/UserAddTimelineRelationshipApplicationService.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/timeline/UserAddTimelineRelationshipApplicationService.kt
index 712ab270..b0ea5580 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/timeline/UserAddTimelineRelationshipApplicationService.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/application/timeline/UserAddTimelineRelationshipApplicationService.kt
@@ -2,7 +2,7 @@ package dev.usbharu.hideout.core.application.timeline
 
 import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
 import dev.usbharu.hideout.core.application.shared.Transaction
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.timelinerelationship.TimelineRelationshipRepository
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
@@ -15,7 +15,7 @@ class UserAddTimelineRelationshipApplicationService(
     LocalUserAbstractApplicationService<AddTimelineRelationship, Unit>(
         transaction, logger
     ) {
-    override suspend fun internalExecute(command: AddTimelineRelationship, principal: FromApi) {
+    override suspend fun internalExecute(command: AddTimelineRelationship, principal: LocalUser) {
         timelineRelationshipRepository.save(command.timelineRelationship)
     }
 
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/config/ApplicationConfig.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/config/ApplicationConfig.kt
index 5cb5941c..bbc461ec 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/config/ApplicationConfig.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/config/ApplicationConfig.kt
@@ -24,4 +24,4 @@ data class ApplicationConfig(
     val url: URL,
     val private: Boolean = true,
     val keySize: Int = 2048,
-)
+)
\ No newline at end of file
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/config/SecurityConfig.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/config/SecurityConfig.kt
index 17320fb8..59069df4 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/config/SecurityConfig.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/config/SecurityConfig.kt
@@ -81,6 +81,7 @@ class SecurityConfig {
 
                 authorize(GET, "/auth/sign_up", hasRole("ANONYMOUS"))
                 authorize(POST, "/auth/sign_up", permitAll)
+                authorize(GET, "/users/{username}/posts/{postId}", permitAll)
 
                 authorize(anyRequest, authenticated)
             }
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/media/MediaRepository.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/media/MediaRepository.kt
index cc5321b8..f762af7b 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/media/MediaRepository.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/media/MediaRepository.kt
@@ -19,5 +19,6 @@ package dev.usbharu.hideout.core.domain.model.media
 interface MediaRepository {
     suspend fun save(media: Media): Media
     suspend fun findById(id: MediaId): Media?
+    suspend fun findByIds(ids: List<MediaId>): List<Media>
     suspend fun delete(media: Media)
 }
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/post/Post.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/post/Post.kt
index d7d3f8e3..9a578c79 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/post/Post.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/post/Post.kt
@@ -83,6 +83,8 @@ class Post(
         }
     }
 
+    val isPureRepost = content == PostContent.empty && overview == null && replyId == null && repostId != null
+
     var content = content
         get() {
             if (hide) {
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/support/principal/FromApi.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/support/principal/LocalUser.kt
similarity index 95%
rename from hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/support/principal/FromApi.kt
rename to hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/support/principal/LocalUser.kt
index 2ce5f785..afe7334e 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/support/principal/FromApi.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/domain/model/support/principal/LocalUser.kt
@@ -4,7 +4,7 @@ import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.support.acct.Acct
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
 
-class FromApi(
+class LocalUser(
     actorId: ActorId,
     override val userDetailId: UserDetailId,
     override val acct: Acct
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposed/PostQueryMapper.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposed/PostQueryMapper.kt
index f3cf3407..653533ed 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposed/PostQueryMapper.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposed/PostQueryMapper.kt
@@ -38,14 +38,14 @@ class PostQueryMapper(private val postResultRowMapper: ResultRowMapper<Post>) :
                 it
                     .first()
                     .let(postResultRowMapper::map)
-                    .apply {
-                        buildPost(it)
+                    .run {
+                        buildPost(this, it)
                     }
             }
     }
 
-    private fun Post.buildPost(it: List<ResultRow>) {
-        reconstructWith(
+    private fun buildPost(post: Post, it: List<ResultRow>): Post {
+        return post.reconstructWith(
             mediaIds = it.mapNotNull { resultRow: ResultRow ->
                 resultRow
                     .getOrNull(PostsMedia.mediaId)
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedPostRepository.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedPostRepository.kt
index e0bb4f46..e3598182 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedPostRepository.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ExposedPostRepository.kt
@@ -157,6 +157,7 @@ class ExposedPostRepository(
 
     override suspend fun findById(id: PostId): Post? = query {
         Posts
+            .leftJoin(PostsMedia)
             .selectAll()
             .where {
                 Posts.id eq id.id
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/MediaRepositoryImpl.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/MediaRepositoryImpl.kt
index b9ab43de..a6ac6b26 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/MediaRepositoryImpl.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/MediaRepositoryImpl.kt
@@ -39,6 +39,15 @@ class MediaRepositoryImpl : MediaRepository, AbstractRepository() {
         }
     }
 
+    override suspend fun findByIds(ids: List<MediaId>): List<dev.usbharu.hideout.core.domain.model.media.Media> {
+        return query {
+            return@query Media
+                .selectAll()
+                .where { Media.id inList ids.map { it.id } }
+                .map { it.toMedia() }
+        }
+    }
+
     override suspend fun delete(media: dev.usbharu.hideout.core.domain.model.media.Media): Unit = query {
         Media.deleteWhere {
             id eq id
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/springframework/SpringSecurityFormLoginPrincipalContextHolder.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/springframework/SpringSecurityFormLoginPrincipalContextHolder.kt
new file mode 100644
index 00000000..32ca47c4
--- /dev/null
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/springframework/SpringSecurityFormLoginPrincipalContextHolder.kt
@@ -0,0 +1,35 @@
+package dev.usbharu.hideout.core.infrastructure.springframework
+
+import dev.usbharu.hideout.core.application.shared.Transaction
+import dev.usbharu.hideout.core.domain.model.support.acct.Acct
+import dev.usbharu.hideout.core.domain.model.support.principal.Anonymous
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
+import dev.usbharu.hideout.core.domain.model.support.principal.Principal
+import dev.usbharu.hideout.core.domain.model.support.principal.PrincipalContextHolder
+import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
+import dev.usbharu.hideout.core.infrastructure.springframework.oauth2.HideoutUserDetails
+import dev.usbharu.hideout.core.query.principal.PrincipalQueryService
+import org.springframework.security.core.context.SecurityContextHolder
+import org.springframework.stereotype.Component
+
+@Component("formLogin")
+class SpringSecurityFormLoginPrincipalContextHolder(
+    private val transaction: Transaction,
+    private val principalQueryService: PrincipalQueryService
+) : PrincipalContextHolder {
+    override suspend fun getPrincipal(): Principal {
+        val hideoutUserDetails =
+            SecurityContextHolder.getContext().authentication?.principal as? HideoutUserDetails ?: return Anonymous
+
+        return transaction.transaction {
+
+            val userDetail = principalQueryService.findByUserDetailId(UserDetailId(hideoutUserDetails.userDetailsId))
+            LocalUser(
+                userDetail.actorId,
+                userDetail.userDetailId,
+                Acct(userDetail.username, userDetail.host)
+            )
+        }
+
+    }
+}
\ No newline at end of file
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/springframework/oauth2/SpringSecurityOauth2PrincipalContextHolder.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/springframework/oauth2/SpringSecurityOauth2PrincipalContextHolder.kt
index ebf56530..95984983 100644
--- a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/springframework/oauth2/SpringSecurityOauth2PrincipalContextHolder.kt
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/springframework/oauth2/SpringSecurityOauth2PrincipalContextHolder.kt
@@ -3,7 +3,7 @@ package dev.usbharu.hideout.core.infrastructure.springframework.oauth2
 import dev.usbharu.hideout.core.application.shared.Transaction
 import dev.usbharu.hideout.core.domain.model.support.acct.Acct
 import dev.usbharu.hideout.core.domain.model.support.principal.Anonymous
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.support.principal.Principal
 import dev.usbharu.hideout.core.domain.model.support.principal.PrincipalContextHolder
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
@@ -12,7 +12,7 @@ import org.springframework.security.core.context.SecurityContextHolder
 import org.springframework.security.oauth2.jwt.Jwt
 import org.springframework.stereotype.Component
 
-@Component
+@Component("oauth2")
 class SpringSecurityOauth2PrincipalContextHolder(
     private val principalQueryService: PrincipalQueryService,
     private val transaction: Transaction
@@ -26,7 +26,7 @@ class SpringSecurityOauth2PrincipalContextHolder(
             val id = principal.getClaim<String>("uid").toLong()
             val userDetail = principalQueryService.findByUserDetailId(UserDetailId(id))
 
-            return@transaction FromApi(
+            return@transaction LocalUser(
                 userDetail.actorId,
                 userDetail.userDetailId,
                 Acct(userDetail.username, userDetail.host)
diff --git a/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/interfaces/web/posts/PostsController.kt b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/interfaces/web/posts/PostsController.kt
new file mode 100644
index 00000000..e7092484
--- /dev/null
+++ b/hideout-core/src/main/kotlin/dev/usbharu/hideout/core/interfaces/web/posts/PostsController.kt
@@ -0,0 +1,27 @@
+package dev.usbharu.hideout.core.interfaces.web.posts
+
+import dev.usbharu.hideout.core.application.instance.GetLocalInstanceApplicationService
+import dev.usbharu.hideout.core.application.post.GetPostDetail
+import dev.usbharu.hideout.core.application.post.GetPostDetailApplicationService
+import dev.usbharu.hideout.core.infrastructure.springframework.SpringSecurityFormLoginPrincipalContextHolder
+import org.springframework.stereotype.Controller
+import org.springframework.ui.Model
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.PathVariable
+
+@Controller
+class PostsController(
+    private val getPostDetailApplicationService: GetPostDetailApplicationService,
+    private val springSecurityFormLoginPrincipalContextHolder: SpringSecurityFormLoginPrincipalContextHolder,
+    private val getLocalInstanceApplicationService: GetLocalInstanceApplicationService
+) {
+    @GetMapping("/users/{name}/posts/{id}")
+    suspend fun postById(@PathVariable id: Long, model: Model): String {
+        val principal = springSecurityFormLoginPrincipalContextHolder.getPrincipal()
+        val post = getPostDetailApplicationService.execute(GetPostDetail(id), principal)
+        val instance = getLocalInstanceApplicationService.execute(Unit, principal)
+        model.addAttribute("post", post)
+        model.addAttribute("instance", instance)
+        return "postById"
+    }
+}
\ No newline at end of file
diff --git a/hideout-core/src/main/resources/application.yml b/hideout-core/src/main/resources/application.yml
index 95ad5a20..c4bcecdd 100644
--- a/hideout-core/src/main/resources/application.yml
+++ b/hideout-core/src/main/resources/application.yml
@@ -47,6 +47,8 @@ spring:
   threads:
     virtual:
       enabled: true
+  messages:
+    basename: messages.hideout-web-messages
 server:
   tomcat:
     basedir: tomcat
diff --git a/hideout-core/src/main/resources/messages/hideout-web-messages.properties b/hideout-core/src/main/resources/messages/hideout-web-messages.properties
new file mode 100644
index 00000000..4151646d
--- /dev/null
+++ b/hideout-core/src/main/resources/messages/hideout-web-messages.properties
@@ -0,0 +1,10 @@
+common.audio=\u30AA\u30FC\u30C7\u30A3\u30AA
+common.audio-download-link=\u97F3\u58F0\u30D5\u30A1\u30A4\u30EB\u3092\u30C0\u30A6\u30F3\u30ED\u30FC\u30C9
+common.media-original-link=\u30AA\u30EA\u30B8\u30CA\u30EB
+common.thumbnail=\u30B5\u30E0\u30CD\u30A4\u30EB
+common.unknwon-file-type=\u4E0D\u660E\u306A\u30D5\u30A1\u30A4\u30EB\u5F62\u5F0F
+common.video=\u52D5\u753B
+common.video-download-link=\u52D5\u753B\u30D5\u30A1\u30A4\u30EB\u307E\u305F\u306F\u30B5\u30E0\u30CD\u30A4\u30EB\u3092\u30C0\u30A6\u30F3\u30ED\u30FC\u30C9
+post-by-id.title={0} \u3055\u3093\u306E\u6295\u7A3F - {1}
+post.repost=\u30EA\u30DD\u30B9\u30C8
+post.repost-by={0}\u304C\u30EA\u30DD\u30B9\u30C8
\ No newline at end of file
diff --git a/hideout-core/src/main/resources/messages/hideout-web-messages_en_US.properties b/hideout-core/src/main/resources/messages/hideout-web-messages_en_US.properties
new file mode 100644
index 00000000..f56efdb9
--- /dev/null
+++ b/hideout-core/src/main/resources/messages/hideout-web-messages_en_US.properties
@@ -0,0 +1,9 @@
+common.audio=Audio
+common.audio-download-link=Download the audio.
+common.media-original-link=original
+common.thumbnail=thumbnail
+common.unknwon-file-type=Unknown filetype
+common.video=Video
+common.video-download-link=Download the Video or thumbnail.
+post.repost=Repost
+post.repost-by=Repost by {0}
\ No newline at end of file
diff --git a/hideout-core/src/main/resources/messages/hideout-web-messages_ja_JP.properties b/hideout-core/src/main/resources/messages/hideout-web-messages_ja_JP.properties
new file mode 100644
index 00000000..4151646d
--- /dev/null
+++ b/hideout-core/src/main/resources/messages/hideout-web-messages_ja_JP.properties
@@ -0,0 +1,10 @@
+common.audio=\u30AA\u30FC\u30C7\u30A3\u30AA
+common.audio-download-link=\u97F3\u58F0\u30D5\u30A1\u30A4\u30EB\u3092\u30C0\u30A6\u30F3\u30ED\u30FC\u30C9
+common.media-original-link=\u30AA\u30EA\u30B8\u30CA\u30EB
+common.thumbnail=\u30B5\u30E0\u30CD\u30A4\u30EB
+common.unknwon-file-type=\u4E0D\u660E\u306A\u30D5\u30A1\u30A4\u30EB\u5F62\u5F0F
+common.video=\u52D5\u753B
+common.video-download-link=\u52D5\u753B\u30D5\u30A1\u30A4\u30EB\u307E\u305F\u306F\u30B5\u30E0\u30CD\u30A4\u30EB\u3092\u30C0\u30A6\u30F3\u30ED\u30FC\u30C9
+post-by-id.title={0} \u3055\u3093\u306E\u6295\u7A3F - {1}
+post.repost=\u30EA\u30DD\u30B9\u30C8
+post.repost-by={0}\u304C\u30EA\u30DD\u30B9\u30C8
\ No newline at end of file
diff --git a/hideout-core/src/main/resources/templates/fragments-post.html b/hideout-core/src/main/resources/templates/fragments-post.html
new file mode 100644
index 00000000..5b9533b6
--- /dev/null
+++ b/hideout-core/src/main/resources/templates/fragments-post.html
@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="UTF-8">
+    <title>Title</title>
+</head>
+<body>
+
+
+<article class="post" th:fragment="single-simple-post(post)">
+    <!--/*@thymesVar id="post" type="dev.usbharu.hideout.core.application.post.PostDetail"*/-->
+    <img alt="" height="80px" src="" th:src="${post.actor.icon}" width="80px">
+    <div style="display: inline-block">
+        <p th:text="${post.actor.screenName}+'('+${post.actor.name}+'@'+${post.actor.domain}+')'"></p>
+    </div>
+
+    <div th:utext="${post.content}">
+
+    </div>
+    <div th:each=" media : ${post.mediaDetailList} ">
+        <th:block th:switch="${media.type}">
+            <picture th:case="Image">
+                <source media="(min-width: 600px)" th:srcset="${media.url}">
+                <img alt="" src="" th:alt="${media.description}" th:src="${media.thumbnailUrl}" width="260">
+            </picture>
+            <video controls loop preload="metadata" th:case="Video" th:poster="${media.thumbnailUrl}" th:src="${media.url}"
+                   th:text="#{common.video-download-link}"
+                   width="260">
+                <a th:href="${media.url}" th:text="#{common.video}">Video</a>
+                <a th:href="${media.thumbnailUrl}" th:text="#{common.thumbnail}">Thumbnail</a>
+            </video>
+            <audio controls preload="metadata" th:case="Audio" th:src="${media.url}"
+                   th:text="#{common.audio-download-link}">
+                <a th:href="${media.url}" th:text="#{common.audio}">Audio</a>
+            </audio>
+            <th:block th:case="*">
+                <p th:text="#{common.unknwon-file-type}">Unknown filetype</p>
+            </th:block>
+        </th:block>
+        <a href="" th:href="${media.url}" th:text="#{common.media-original-link}"></a>
+    </div>
+</article>
+
+<div class="post-controller" th:fragment="single-post-controller(post)">
+    <!--/*@thymesVar id="post" type="dev.usbharu.hideout.core.application.post.PostDetail"*/-->
+    <a th:href="${post.apId}">
+        <time th:datetime="${post.createdAt}" th:text="${#temporals.format(post.createdAt, 'yyyy-MM-dd HH:mm')}"></time>
+    </a>
+</div>
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/hideout-core/src/main/resources/templates/postById.html b/hideout-core/src/main/resources/templates/postById.html
new file mode 100644
index 00000000..99c7126d
--- /dev/null
+++ b/hideout-core/src/main/resources/templates/postById.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html lang="ja" xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="UTF-8">
+    <title th:text="#{post-by-id.title(${post.actor.screenName},${instance.name})}">Posts - hideout</title>
+</head>
+<body>
+<noscript>
+    <th:block th:if=" ${post.reply != null}">
+        <th:block th:replace="fragments-post :: single-simple-post(${post.reply})"></th:block>
+        <hr>
+    </th:block>
+    <main>
+        <p th:if="${post.pureRepost}" th:text="#{post.repost-by(${post.actor.name})}">Repost by user</p>
+        <th:block th:unless="${post.pureRepost}">
+            <th:block th:replace="fragments-post :: single-simple-post(${post})"></th:block>
+            <th:block th:replace="fragments-post :: single-post-controller(${post})"></th:block>
+        </th:block>
+        <th:block th:if="${post.pureRepost}">
+            <th:block th:replace="fragments-post :: single-simple-post(${post.repost})"></th:block>
+            <th:block th:replace="fragments-post :: single-post-controller(${post.repost})"></th:block>
+        </th:block>
+
+    </main>
+    <th:block th:if="${post.repost != null && !post.pureRepost}">
+        <hr>
+        <th:block th:replace="fragments-post :: single-simple-post(${post.repost})"></th:block>
+        <cite th:text="${post.repost.apId}"></cite>
+    </th:block>
+</noscript>
+</body>
+</html>
\ No newline at end of file
diff --git a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/actor/MigrationLocalActorApplicationServiceTest.kt b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/actor/MigrationLocalActorApplicationServiceTest.kt
index 3148980d..0dad132b 100644
--- a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/actor/MigrationLocalActorApplicationServiceTest.kt
+++ b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/actor/MigrationLocalActorApplicationServiceTest.kt
@@ -7,7 +7,7 @@ import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.actor.TestActorFactory
 import dev.usbharu.hideout.core.domain.model.support.acct.Acct
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetail
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailHashedPassword
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
@@ -48,7 +48,7 @@ class MigrationLocalActorApplicationServiceTest {
         assertThrows<PermissionDeniedException> {
             service.execute(
                 MigrationLocalActor(1, 2),
-                FromApi(ActorId(3), UserDetailId(3), Acct("test", "example.com"))
+                LocalUser(ActorId(3), UserDetailId(3), Acct("test", "example.com"))
             )
         }
     }
@@ -64,7 +64,7 @@ class MigrationLocalActorApplicationServiceTest {
         assertThrows<IllegalArgumentException> {
             service.execute(
                 MigrationLocalActor(1, 2),
-                FromApi(ActorId(1), UserDetailId(1), Acct("test", "example.com"))
+                LocalUser(ActorId(1), UserDetailId(1), Acct("test", "example.com"))
             )
         }
     }
@@ -81,7 +81,7 @@ class MigrationLocalActorApplicationServiceTest {
         assertThrows<IllegalArgumentException> {
             service.execute(
                 MigrationLocalActor(1, 2),
-                FromApi(ActorId(1), UserDetailId(1), Acct("test", "example.com"))
+                LocalUser(ActorId(1), UserDetailId(1), Acct("test", "example.com"))
             )
         }
     }
@@ -91,7 +91,7 @@ class MigrationLocalActorApplicationServiceTest {
         assertThrows<InternalServerException> {
             service.execute(
                 MigrationLocalActor(1, 2),
-                FromApi(ActorId(1), UserDetailId(1), Acct("test", "example.com"))
+                LocalUser(ActorId(1), UserDetailId(1), Acct("test", "example.com"))
             )
         }
     }
@@ -119,7 +119,7 @@ class MigrationLocalActorApplicationServiceTest {
 
         service.execute(
             MigrationLocalActor(1, 2),
-            FromApi(ActorId(1), UserDetailId(1), Acct("test", "example.com"))
+            LocalUser(ActorId(1), UserDetailId(1), Acct("test", "example.com"))
         )
 
         argumentCaptor<Actor> {
@@ -161,7 +161,7 @@ class MigrationLocalActorApplicationServiceTest {
             assertThrows<IllegalArgumentException> {
                 service.execute(
                     MigrationLocalActor(1, 2),
-                    FromApi(ActorId(1), UserDetailId(1), Acct("test", "example.com"))
+                    LocalUser(ActorId(1), UserDetailId(1), Acct("test", "example.com"))
                 )
             }
         }
diff --git a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/actor/StartDeleteLocalActorApplicationServiceTest.kt b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/actor/StartDeleteLocalActorApplicationServiceTest.kt
index f99645bf..27fac11f 100644
--- a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/actor/StartDeleteLocalActorApplicationServiceTest.kt
+++ b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/actor/StartDeleteLocalActorApplicationServiceTest.kt
@@ -6,7 +6,7 @@ import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.actor.TestActorFactory
 import dev.usbharu.hideout.core.domain.model.support.acct.Acct
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
 import kotlinx.coroutines.test.runTest
 import org.junit.jupiter.api.Test
@@ -38,7 +38,7 @@ class StartDeleteLocalActorApplicationServiceTest {
 
         service.execute(
             DeleteLocalActor(ActorId(1)),
-            FromApi(ActorId(1), UserDetailId((1)), Acct("test", "example.com"))
+            LocalUser(ActorId(1), UserDetailId((1)), Acct("test", "example.com"))
         )
     }
 
@@ -47,7 +47,7 @@ class StartDeleteLocalActorApplicationServiceTest {
         assertThrows<PermissionDeniedException> {
             service.execute(
                 DeleteLocalActor(ActorId(2)),
-                FromApi(ActorId(1), UserDetailId((1)), Acct("test", "example.com"))
+                LocalUser(ActorId(1), UserDetailId((1)), Acct("test", "example.com"))
             )
         }
     }
@@ -57,7 +57,7 @@ class StartDeleteLocalActorApplicationServiceTest {
         assertThrows<InternalServerException> {
             service.execute(
                 DeleteLocalActor(ActorId(1)),
-                FromApi(ActorId(1), UserDetailId((1)), Acct("test", "example.com"))
+                LocalUser(ActorId(1), UserDetailId((1)), Acct("test", "example.com"))
             )
         }
     }
diff --git a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/filter/UserDeleteFilterApplicationServiceTest.kt b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/filter/UserDeleteFilterApplicationServiceTest.kt
index 3928ea45..fe2546f6 100644
--- a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/filter/UserDeleteFilterApplicationServiceTest.kt
+++ b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/filter/UserDeleteFilterApplicationServiceTest.kt
@@ -6,7 +6,7 @@ import dev.usbharu.hideout.core.domain.model.filter.*
 import dev.usbharu.hideout.core.domain.model.filter.Filter
 import dev.usbharu.hideout.core.domain.model.filter.FilterKeyword
 import dev.usbharu.hideout.core.domain.model.support.acct.Acct
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
 import kotlinx.coroutines.test.runTest
 import org.junit.jupiter.api.Test
@@ -43,7 +43,7 @@ class UserDeleteFilterApplicationServiceTest {
         whenever(filterRepository.findByFilterId(FilterId(1))).doReturn(filter)
 
         service.execute(
-            DeleteFilter(1), FromApi(
+            DeleteFilter(1), LocalUser(
                 ActorId(1), UserDetailId(1),
                 Acct("test", "example.com")
             )
@@ -56,7 +56,7 @@ class UserDeleteFilterApplicationServiceTest {
     fun フィルターが見つからない場合失敗() = runTest {
         assertThrows<IllegalArgumentException> {
             service.execute(
-                DeleteFilter(1), FromApi(
+                DeleteFilter(1), LocalUser(
                     ActorId(1), UserDetailId(1),
                     Acct("test", "example.com")
                 )
@@ -77,7 +77,7 @@ class UserDeleteFilterApplicationServiceTest {
 
         assertThrows<PermissionDeniedException> {
             service.execute(
-                DeleteFilter(1), FromApi(
+                DeleteFilter(1), LocalUser(
                     ActorId(3), UserDetailId(3),
                     Acct("test", "example.com")
                 )
diff --git a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/filter/UserGetFilterApplicationServiceTest.kt b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/filter/UserGetFilterApplicationServiceTest.kt
index b3b2db82..f7d2e01f 100644
--- a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/filter/UserGetFilterApplicationServiceTest.kt
+++ b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/filter/UserGetFilterApplicationServiceTest.kt
@@ -6,7 +6,7 @@ import dev.usbharu.hideout.core.domain.model.filter.*
 import dev.usbharu.hideout.core.domain.model.filter.Filter
 import dev.usbharu.hideout.core.domain.model.filter.FilterKeyword
 import dev.usbharu.hideout.core.domain.model.support.acct.Acct
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
 import kotlinx.coroutines.test.runTest
 import org.junit.jupiter.api.Test
@@ -43,7 +43,7 @@ class UserGetFilterApplicationServiceTest {
         whenever(filterRepository.findByFilterId(FilterId(1))).doReturn(filter)
 
         service.execute(
-            GetFilter(1), FromApi(
+            GetFilter(1), LocalUser(
                 ActorId(1), UserDetailId(1),
                 Acct("test", "example.com")
             )
@@ -64,7 +64,7 @@ class UserGetFilterApplicationServiceTest {
 
         assertThrows<PermissionDeniedException> {
             service.execute(
-                GetFilter(1), FromApi(
+                GetFilter(1), LocalUser(
                     ActorId(3), UserDetailId(3),
                     Acct("test", "example.com")
                 )
@@ -76,7 +76,7 @@ class UserGetFilterApplicationServiceTest {
     fun フィルターが見つからない場合失敗() = runTest {
         assertThrows<IllegalArgumentException> {
             service.execute(
-                GetFilter(1), FromApi(
+                GetFilter(1), LocalUser(
                     ActorId(3), UserDetailId(3),
                     Acct("test", "example.com")
                 )
diff --git a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/post/DeleteLocalPostApplicationServiceTest.kt b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/post/DeleteLocalPostApplicationServiceTest.kt
index b4c747ba..4a804882 100644
--- a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/post/DeleteLocalPostApplicationServiceTest.kt
+++ b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/post/DeleteLocalPostApplicationServiceTest.kt
@@ -8,7 +8,7 @@ import dev.usbharu.hideout.core.domain.model.post.PostId
 import dev.usbharu.hideout.core.domain.model.post.PostRepository
 import dev.usbharu.hideout.core.domain.model.post.TestPostFactory
 import dev.usbharu.hideout.core.domain.model.support.acct.Acct
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
 import kotlinx.coroutines.test.runTest
 import org.junit.jupiter.api.Test
@@ -41,7 +41,7 @@ class DeleteLocalPostApplicationServiceTest {
         whenever(postRepository.findById(PostId(1))).doReturn(TestPostFactory.create(actorId = 2))
         whenever(actorRepository.findById(ActorId(2))).doReturn(TestActorFactory.create(id = 2))
 
-        service.execute(DeleteLocalPost(1), FromApi(ActorId(2), UserDetailId(2), Acct("test", "example.com")))
+        service.execute(DeleteLocalPost(1), LocalUser(ActorId(2), UserDetailId(2), Acct("test", "example.com")))
     }
 
     @Test
@@ -49,7 +49,7 @@ class DeleteLocalPostApplicationServiceTest {
         whenever(postRepository.findById(PostId(1))).doReturn(TestPostFactory.create(actorId = 2))
 
         assertThrows<PermissionDeniedException> {
-            service.execute(DeleteLocalPost(1), FromApi(ActorId(3), UserDetailId(3), Acct("test", "example.com")))
+            service.execute(DeleteLocalPost(1), LocalUser(ActorId(3), UserDetailId(3), Acct("test", "example.com")))
         }
     }
 }
\ No newline at end of file
diff --git a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/post/RegisterLocalPostApplicationServiceTest.kt b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/post/RegisterLocalPostApplicationServiceTest.kt
index 40cc7162..cd4c11e7 100644
--- a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/post/RegisterLocalPostApplicationServiceTest.kt
+++ b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/post/RegisterLocalPostApplicationServiceTest.kt
@@ -8,7 +8,7 @@ import dev.usbharu.hideout.core.domain.model.post.PostRepository
 import dev.usbharu.hideout.core.domain.model.post.TestPostFactory
 import dev.usbharu.hideout.core.domain.model.post.Visibility
 import dev.usbharu.hideout.core.domain.model.support.acct.Acct
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
 import dev.usbharu.hideout.core.infrastructure.factory.PostFactoryImpl
 import kotlinx.coroutines.test.runTest
@@ -59,7 +59,7 @@ class RegisterLocalPostApplicationServiceTest {
         ).doReturn(post)
 
         service.execute(
-            RegisterLocalPost("content test", null, Visibility.PUBLIC, null, null, false, emptyList()), FromApi(
+            RegisterLocalPost("content test", null, Visibility.PUBLIC, null, null, false, emptyList()), LocalUser(
                 ActorId(1), UserDetailId(1), Acct("test", "example.com")
             )
         )
@@ -71,7 +71,7 @@ class RegisterLocalPostApplicationServiceTest {
     fun actorが見つからないと失敗() = runTest {
         assertThrows<InternalServerException> {
             service.execute(
-                RegisterLocalPost("content test", null, Visibility.PUBLIC, null, null, false, emptyList()), FromApi(
+                RegisterLocalPost("content test", null, Visibility.PUBLIC, null, null, false, emptyList()), LocalUser(
                     ActorId(1), UserDetailId(1), Acct("test", "example.com")
                 )
             )
diff --git a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/post/UpdateLocalNoteApplicationServiceTest.kt b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/post/UpdateLocalNoteApplicationServiceTest.kt
index 25c8524b..7cb0e206 100644
--- a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/post/UpdateLocalNoteApplicationServiceTest.kt
+++ b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/post/UpdateLocalNoteApplicationServiceTest.kt
@@ -8,7 +8,7 @@ import dev.usbharu.hideout.core.domain.model.actor.TestActorFactory
 import dev.usbharu.hideout.core.domain.model.post.*
 import dev.usbharu.hideout.core.domain.model.post.Post
 import dev.usbharu.hideout.core.domain.model.support.acct.Acct
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetail
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailHashedPassword
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
@@ -63,7 +63,7 @@ class UpdateLocalNoteApplicationServiceTest {
         whenever(postContentFactoryImpl.create(eq("test"))).doReturn(content)
 
         service.execute(
-            UpdateLocalNote(post.id.id, null, "test", false, emptyList()), FromApi(
+            UpdateLocalNote(post.id.id, null, "test", false, emptyList()), LocalUser(
                 post.actorId,
                 UserDetailId(1),
                 Acct("test", "example.com")
@@ -84,7 +84,7 @@ class UpdateLocalNoteApplicationServiceTest {
     fun postが見つからない場合失敗() = runTest {
         assertThrows<IllegalArgumentException> {
             service.execute(
-                UpdateLocalNote(1, null, "test", false, emptyList()), FromApi(
+                UpdateLocalNote(1, null, "test", false, emptyList()), LocalUser(
                     ActorId(1),
                     UserDetailId(1), Acct("test", "example.com")
                 )
@@ -98,7 +98,7 @@ class UpdateLocalNoteApplicationServiceTest {
 
         assertThrows<PermissionDeniedException> {
             service.execute(
-                UpdateLocalNote(1, null, "test", false, emptyList()), FromApi(
+                UpdateLocalNote(1, null, "test", false, emptyList()), LocalUser(
                     ActorId(1),
                     UserDetailId(1), Acct("test", "example.com")
                 )
@@ -112,7 +112,7 @@ class UpdateLocalNoteApplicationServiceTest {
 
         assertThrows<InternalServerException> {
             service.execute(
-                UpdateLocalNote(1, null, "test", false, emptyList()), FromApi(
+                UpdateLocalNote(1, null, "test", false, emptyList()), LocalUser(
                     ActorId(1),
                     UserDetailId(1), Acct("test", "example.com")
                 )
@@ -138,7 +138,7 @@ class UpdateLocalNoteApplicationServiceTest {
 
         assertThrows<InternalServerException> {
             service.execute(
-                UpdateLocalNote(post.id.id, null, "test", false, emptyList()), FromApi(
+                UpdateLocalNote(post.id.id, null, "test", false, emptyList()), LocalUser(
                     post.actorId,
                     UserDetailId(1),
                     Acct("test", "example.com")
diff --git a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/relationship/acceptfollowrequest/UserAcceptFollowRequestApplicationServiceTest.kt b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/relationship/acceptfollowrequest/UserAcceptFollowRequestApplicationServiceTest.kt
index 8f47c41f..353a9769 100644
--- a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/relationship/acceptfollowrequest/UserAcceptFollowRequestApplicationServiceTest.kt
+++ b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/relationship/acceptfollowrequest/UserAcceptFollowRequestApplicationServiceTest.kt
@@ -7,7 +7,7 @@ import dev.usbharu.hideout.core.domain.model.actor.TestActorFactory
 import dev.usbharu.hideout.core.domain.model.relationship.Relationship
 import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
 import dev.usbharu.hideout.core.domain.model.support.acct.Acct
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
 import kotlinx.coroutines.test.runTest
 import org.junit.jupiter.api.Assertions.assertFalse
@@ -42,7 +42,7 @@ class UserAcceptFollowRequestApplicationServiceTest {
     @Test
     fun actorが見つからない場合失敗() = runTest {
         assertThrows<InternalServerException> {
-            service.execute(AcceptFollowRequest(1), FromApi(ActorId(2), UserDetailId(2), Acct("test", "example.com")))
+            service.execute(AcceptFollowRequest(1), LocalUser(ActorId(2), UserDetailId(2), Acct("test", "example.com")))
         }
     }
 
@@ -51,7 +51,7 @@ class UserAcceptFollowRequestApplicationServiceTest {
         whenever(actorRepository.findById(ActorId(2))).doReturn(TestActorFactory.create(id = 2))
 
         assertThrows<InternalServerException> {
-            service.execute(AcceptFollowRequest(1), FromApi(ActorId(2), UserDetailId(2), Acct("test", "example.com")))
+            service.execute(AcceptFollowRequest(1), LocalUser(ActorId(2), UserDetailId(2), Acct("test", "example.com")))
         }
     }
 
@@ -68,7 +68,7 @@ class UserAcceptFollowRequestApplicationServiceTest {
                 followRequesting = true, mutingFollowRequest = false
             )
         )
-        service.execute(AcceptFollowRequest(1), FromApi(ActorId(2), UserDetailId(2), Acct("test", "example.com")))
+        service.execute(AcceptFollowRequest(1), LocalUser(ActorId(2), UserDetailId(2), Acct("test", "example.com")))
 
         argumentCaptor<Relationship> {
             verify(relationshipRepository).save(capture())
diff --git a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/shared/LocalUserAbstractApplicationServiceTest.kt b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/shared/LocalUserAbstractApplicationServiceTest.kt
index 581bac6a..ee8c84ec 100644
--- a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/shared/LocalUserAbstractApplicationServiceTest.kt
+++ b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/application/shared/LocalUserAbstractApplicationServiceTest.kt
@@ -2,7 +2,7 @@ package dev.usbharu.hideout.core.application.shared
 
 import dev.usbharu.hideout.core.application.exception.PermissionDeniedException
 import dev.usbharu.hideout.core.domain.model.support.principal.Anonymous
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import kotlinx.coroutines.test.runTest
 import org.junit.jupiter.api.Test
 import org.slf4j.LoggerFactory
@@ -13,7 +13,7 @@ class LocalUserAbstractApplicationServiceTest {
     fun requireFromAPI() = runTest {
         val logger = LoggerFactory.getLogger(javaClass)
         val value = object : LocalUserAbstractApplicationService<Unit, Unit>(TestTransaction, logger) {
-            override suspend fun internalExecute(command: Unit, principal: FromApi) {
+            override suspend fun internalExecute(command: Unit, principal: LocalUser) {
 
             }
         }
diff --git a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/domain/service/post/DefaultPostReadAccessControlTest.kt b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/domain/service/post/DefaultPostReadAccessControlTest.kt
index 2826cb58..5340309f 100644
--- a/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/domain/service/post/DefaultPostReadAccessControlTest.kt
+++ b/hideout-core/src/test/kotlin/dev/usbharu/hideout/core/domain/service/post/DefaultPostReadAccessControlTest.kt
@@ -7,7 +7,7 @@ import dev.usbharu.hideout.core.domain.model.relationship.Relationship
 import dev.usbharu.hideout.core.domain.model.relationship.RelationshipRepository
 import dev.usbharu.hideout.core.domain.model.support.acct.Acct
 import dev.usbharu.hideout.core.domain.model.support.principal.Anonymous
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
 import kotlinx.coroutines.test.runTest
 import org.junit.jupiter.api.Assertions.assertFalse
@@ -44,7 +44,7 @@ class DefaultPostReadAccessControlTest {
 
         val actual = service.isAllow(
             TestPostFactory.create(actorId = 1),
-            FromApi(ActorId(2), UserDetailId(2), Acct("test", "example.com"))
+            LocalUser(ActorId(2), UserDetailId(2), Acct("test", "example.com"))
         )
 
         assertFalse(actual)
@@ -72,7 +72,7 @@ class DefaultPostReadAccessControlTest {
     fun DirectでvisibleActorsに含まれていたら見れる() = runTest {
         val actual = service.isAllow(
             TestPostFactory.create(actorId = 1, visibility = Visibility.DIRECT, visibleActors = listOf(2)),
-            FromApi(ActorId(2), UserDetailId(2), Acct("test", "example.com"))
+            LocalUser(ActorId(2), UserDetailId(2), Acct("test", "example.com"))
         )
 
         assertTrue(actual)
@@ -82,7 +82,7 @@ class DefaultPostReadAccessControlTest {
     fun DirectでvisibleActorsに含まれていなかったら見れない() = runTest {
         val actual = service.isAllow(
             TestPostFactory.create(actorId = 1, visibility = Visibility.DIRECT, visibleActors = listOf(3)),
-            FromApi(ActorId(2), UserDetailId(2), Acct("test", "example.com"))
+            LocalUser(ActorId(2), UserDetailId(2), Acct("test", "example.com"))
         )
 
         assertFalse(actual)
@@ -111,7 +111,7 @@ class DefaultPostReadAccessControlTest {
 
         val actual = service.isAllow(
             TestPostFactory.create(actorId = 1, visibility = Visibility.FOLLOWERS),
-            FromApi(ActorId(2), UserDetailId(2), Acct("test", "example.com"))
+            LocalUser(ActorId(2), UserDetailId(2), Acct("test", "example.com"))
         )
 
         assertTrue(actual)
@@ -121,7 +121,7 @@ class DefaultPostReadAccessControlTest {
     fun relationshipが見つからない場合見れない() = runTest {
         val actual = service.isAllow(
             TestPostFactory.create(actorId = 1, visibility = Visibility.FOLLOWERS),
-            FromApi(ActorId(2), UserDetailId(2), Acct("test", "example.com"))
+            LocalUser(ActorId(2), UserDetailId(2), Acct("test", "example.com"))
         )
 
         assertFalse(actual)
@@ -150,7 +150,7 @@ class DefaultPostReadAccessControlTest {
 
         val actual = service.isAllow(
             TestPostFactory.create(actorId = 1, visibility = Visibility.FOLLOWERS),
-            FromApi(ActorId(2), UserDetailId(2), Acct("test", "example.com"))
+            LocalUser(ActorId(2), UserDetailId(2), Acct("test", "example.com"))
         )
 
         assertFalse(actual)
diff --git a/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/application/accounts/GetAccountApplicationService.kt b/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/application/accounts/GetAccountApplicationService.kt
index 04d274a4..27f861c7 100644
--- a/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/application/accounts/GetAccountApplicationService.kt
+++ b/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/application/accounts/GetAccountApplicationService.kt
@@ -18,7 +18,7 @@ package dev.usbharu.hideout.mastodon.application.accounts
 
 import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationService
 import dev.usbharu.hideout.core.application.shared.Transaction
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.mastodon.interfaces.api.generated.model.Account
 import dev.usbharu.hideout.mastodon.query.AccountQueryService
 import org.slf4j.LoggerFactory
@@ -30,7 +30,7 @@ class GetAccountApplicationService(private val accountQueryService: AccountQuery
         transaction,
         logger
     ) {
-    override suspend fun internalExecute(command: GetAccount, principal: FromApi): Account {
+    override suspend fun internalExecute(command: GetAccount, principal: LocalUser): Account {
         return accountQueryService.findById(command.accountId.toLong()) ?: throw Exception("Account not found")
     }
 
diff --git a/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/application/filter/DeleteFilterV1ApplicationService.kt b/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/application/filter/DeleteFilterV1ApplicationService.kt
index 919d51ef..dd48a024 100644
--- a/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/application/filter/DeleteFilterV1ApplicationService.kt
+++ b/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/application/filter/DeleteFilterV1ApplicationService.kt
@@ -21,7 +21,7 @@ import dev.usbharu.hideout.core.application.shared.LocalUserAbstractApplicationS
 import dev.usbharu.hideout.core.application.shared.Transaction
 import dev.usbharu.hideout.core.domain.model.filter.FilterKeywordId
 import dev.usbharu.hideout.core.domain.model.filter.FilterRepository
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
@@ -30,7 +30,7 @@ class DeleteFilterV1ApplicationService(private val filterRepository: FilterRepos
     LocalUserAbstractApplicationService<DeleteFilterV1, Unit>(
         transaction, logger
     ) {
-    override suspend fun internalExecute(command: DeleteFilterV1, principal: FromApi) {
+    override suspend fun internalExecute(command: DeleteFilterV1, principal: LocalUser) {
         val filter = filterRepository.findByFilterKeywordId(FilterKeywordId(command.filterKeywordId))
             ?: throw IllegalArgumentException("Filter ${command.filterKeywordId} not found")
         if (principal.userDetailId != filter.userDetailId) {
diff --git a/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/SpringFilterApi.kt b/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/SpringFilterApi.kt
index c5748dab..18e72dbb 100644
--- a/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/SpringFilterApi.kt
+++ b/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/SpringFilterApi.kt
@@ -20,7 +20,7 @@ import dev.usbharu.hideout.core.application.filter.*
 import dev.usbharu.hideout.core.domain.model.filter.FilterAction
 import dev.usbharu.hideout.core.domain.model.filter.FilterContext
 import dev.usbharu.hideout.core.domain.model.filter.FilterMode
-import dev.usbharu.hideout.core.domain.model.support.principal.PrincipalContextHolder
+import dev.usbharu.hideout.core.infrastructure.springframework.oauth2.SpringSecurityOauth2PrincipalContextHolder
 import dev.usbharu.hideout.mastodon.application.filter.DeleteFilterV1
 import dev.usbharu.hideout.mastodon.application.filter.DeleteFilterV1ApplicationService
 import dev.usbharu.hideout.mastodon.application.filter.GetFilterV1
@@ -41,7 +41,7 @@ class SpringFilterApi(
     private val deleteFilterV1ApplicationService: DeleteFilterV1ApplicationService,
     private val userDeleteFilterApplicationService: UserDeleteFilterApplicationService,
     private val userGetFilterApplicationService: UserGetFilterApplicationService,
-    private val principalContextHolder: PrincipalContextHolder
+    private val principalContextHolder: SpringSecurityOauth2PrincipalContextHolder
 ) : FilterApi {
 
     override suspend fun apiV1FiltersIdDelete(id: String): ResponseEntity<Any> {
diff --git a/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/SpringMediaApi.kt b/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/SpringMediaApi.kt
index c22afbc7..0dff1da7 100644
--- a/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/SpringMediaApi.kt
+++ b/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/SpringMediaApi.kt
@@ -19,7 +19,7 @@ package dev.usbharu.hideout.mastodon.interfaces.api
 import dev.usbharu.hideout.core.application.media.UploadMedia
 import dev.usbharu.hideout.core.application.media.UploadMediaApplicationService
 import dev.usbharu.hideout.core.domain.model.media.FileType.*
-import dev.usbharu.hideout.core.domain.model.support.principal.PrincipalContextHolder
+import dev.usbharu.hideout.core.infrastructure.springframework.oauth2.SpringSecurityOauth2PrincipalContextHolder
 import dev.usbharu.hideout.mastodon.interfaces.api.generated.MediaApi
 import dev.usbharu.hideout.mastodon.interfaces.api.generated.model.MediaAttachment
 import org.springframework.http.ResponseEntity
@@ -30,7 +30,7 @@ import java.nio.file.Files
 @Controller
 class SpringMediaApi(
     private val uploadMediaApplicationService: UploadMediaApplicationService,
-    private val principalContextHolder: PrincipalContextHolder
+    private val principalContextHolder: SpringSecurityOauth2PrincipalContextHolder
 ) : MediaApi {
     override suspend fun apiV1MediaPost(
         file: MultipartFile,
diff --git a/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/SpringStatusApi.kt b/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/SpringStatusApi.kt
index 3f981012..92b0e18a 100644
--- a/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/SpringStatusApi.kt
+++ b/hideout-mastodon/src/main/kotlin/dev/usbharu/hideout/mastodon/interfaces/api/SpringStatusApi.kt
@@ -19,7 +19,7 @@ package dev.usbharu.hideout.mastodon.interfaces.api
 import dev.usbharu.hideout.core.application.post.RegisterLocalPost
 import dev.usbharu.hideout.core.application.post.RegisterLocalPostApplicationService
 import dev.usbharu.hideout.core.domain.model.post.Visibility
-import dev.usbharu.hideout.core.domain.model.support.principal.PrincipalContextHolder
+import dev.usbharu.hideout.core.infrastructure.springframework.oauth2.SpringSecurityOauth2PrincipalContextHolder
 import dev.usbharu.hideout.mastodon.application.status.GetStatus
 import dev.usbharu.hideout.mastodon.application.status.GetStatusApplicationService
 import dev.usbharu.hideout.mastodon.interfaces.api.StatusesRequest.Visibility.*
@@ -32,7 +32,7 @@ import org.springframework.stereotype.Controller
 class SpringStatusApi(
     private val registerLocalPostApplicationService: RegisterLocalPostApplicationService,
     private val getStatusApplicationService: GetStatusApplicationService,
-    private val principalContextHolder: PrincipalContextHolder
+    private val principalContextHolder: SpringSecurityOauth2PrincipalContextHolder
 ) : StatusApi {
     override suspend fun apiV1StatusesIdEmojiReactionsEmojiDelete(id: String, emoji: String): ResponseEntity<Status> {
         return super.apiV1StatusesIdEmojiReactionsEmojiDelete(id, emoji)
diff --git a/hideout-mastodon/src/test/kotlin/dev/usbharu/hideout/mastodon/infrastructure/exposedquery/StatusQueryServiceImplTest.kt b/hideout-mastodon/src/test/kotlin/dev/usbharu/hideout/mastodon/infrastructure/exposedquery/StatusQueryServiceImplTest.kt
index a23dd3ef..da7ef30c 100644
--- a/hideout-mastodon/src/test/kotlin/dev/usbharu/hideout/mastodon/infrastructure/exposedquery/StatusQueryServiceImplTest.kt
+++ b/hideout-mastodon/src/test/kotlin/dev/usbharu/hideout/mastodon/infrastructure/exposedquery/StatusQueryServiceImplTest.kt
@@ -3,7 +3,7 @@ package dev.usbharu.hideout.mastodon.infrastructure.exposedquery
 import dev.usbharu.hideout.SpringApplication
 import dev.usbharu.hideout.core.domain.model.actor.ActorId
 import dev.usbharu.hideout.core.domain.model.support.acct.Acct
-import dev.usbharu.hideout.core.domain.model.support.principal.FromApi
+import dev.usbharu.hideout.core.domain.model.support.principal.LocalUser
 import dev.usbharu.hideout.core.domain.model.userdetails.UserDetailId
 import kotlinx.coroutines.test.runTest
 import org.junit.jupiter.api.Assertions.assertNull
@@ -26,7 +26,7 @@ class StatusQueryServiceImplTest {
     @Test
     fun フォロワー限定をフォロワー以外は見れない() = runTest {
         val status =
-            statusQueryServiceImpl.findByPostId(4, FromApi(ActorId(1), UserDetailId(1), Acct("test", "example.com")))
+            statusQueryServiceImpl.findByPostId(4, LocalUser(ActorId(1), UserDetailId(1), Acct("test", "example.com")))
 
         assertNull(status)
     }