#32

frontend/package-lock.json

@@ -21,7 +21,7 @@
         "markdown-it": "^14.1.0",
         "react": "^19.1.0",
         "react-dom": "^19.1.0",
-        "react-helmet": "^6.1.0",
+        "react-helmet-async": "^2.0.5",
         "react-markdown": "^10.1.0",
         "react-markdown-editor-lite": "^1.3.4",
         "react-router-dom": "^6.30.0",
@@ -3841,6 +3841,15 @@
       "integrity": "sha512-0aO8FkhNZlj/ZIbNi7Lxxr12obT7cL1moPfE4tg1LkX7LlLfC6DeX4l2ZEud1ukP9jNQyNnfzQVqwbwmAATY4Q==",
       "license": "MIT"
     },
+    "node_modules/invariant": {
+      "version": "2.2.4",
+      "resolved": "https://registry.npmjs.org/invariant/-/invariant-2.2.4.tgz",
+      "integrity": "sha512-phJfQVBuaJM5raOpJjSfkiD6BpbCE4Ns//LaXl6wGYtUBY83nWS6Rf9tXm2e8VaK60JEjYldbPif/A2B1C2gNA==",
+      "license": "MIT",
+      "dependencies": {
+        "loose-envify": "^1.0.0"
+      }
+    },
     "node_modules/is-alphabetical": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/is-alphabetical/-/is-alphabetical-2.0.1.tgz",
@@ -4964,6 +4973,7 @@
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
       "integrity": "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=0.10.0"
@@ -5338,17 +5348,6 @@
         "node": ">= 0.8.0"
       }
     },
-    "node_modules/prop-types": {
-      "version": "15.8.1",
-      "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.8.1.tgz",
-      "integrity": "sha512-oj87CgZICdulUohogVAR7AjlC0327U4el4L6eAvOqCeudMDVU0NThNaV+b9Df4dXgSP1gXMTnPdhfe/2qDH5cg==",
-      "license": "MIT",
-      "dependencies": {
-        "loose-envify": "^1.4.0",
-        "object-assign": "^4.1.1",
-        "react-is": "^16.13.1"
-      }
-    },
     "node_modules/property-information": {
       "version": "7.1.0",
       "resolved": "https://registry.npmjs.org/property-information/-/property-information-7.1.0.tgz",
@@ -5444,27 +5443,20 @@
       "integrity": "sha512-nsO+KSNgo1SbJqJEYRE9ERzo7YtYbou/OqjSQKxV7jcKox7+usiUVZOAC+XnDOABXggQTno0Y1CpVnuWEc1boQ==",
       "license": "MIT"
     },
-    "node_modules/react-helmet": {
-      "version": "6.1.0",
-      "resolved": "https://registry.npmjs.org/react-helmet/-/react-helmet-6.1.0.tgz",
-      "integrity": "sha512-4uMzEY9nlDlgxr61NL3XbKRy1hEkXmKNXhjbAIOVw5vcFrsdYbH2FEwcNyWvWinl103nXgzYNlns9ca+8kFiWw==",
-      "license": "MIT",
+    "node_modules/react-helmet-async": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/react-helmet-async/-/react-helmet-async-2.0.5.tgz",
+      "integrity": "sha512-rYUYHeus+i27MvFE+Jaa4WsyBKGkL6qVgbJvSBoX8mbsWoABJXdEO0bZyi0F6i+4f0NuIb8AvqPMj3iXFHkMwg==",
+      "license": "Apache-2.0",
       "dependencies": {
-        "object-assign": "^4.1.1",
-        "prop-types": "^15.7.2",
-        "react-fast-compare": "^3.1.1",
-        "react-side-effect": "^2.1.0"
+        "invariant": "^2.2.4",
+        "react-fast-compare": "^3.2.2",
+        "shallowequal": "^1.1.0"
       },
       "peerDependencies": {
-        "react": ">=16.3.0"
+        "react": "^16.6.0 || ^17.0.0 || ^18.0.0"
       }
     },
-    "node_modules/react-is": {
-      "version": "16.13.1",
-      "resolved": "https://registry.npmjs.org/react-is/-/react-is-16.13.1.tgz",
-      "integrity": "sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ==",
-      "license": "MIT"
-    },
     "node_modules/react-markdown": {
       "version": "10.1.0",
       "resolved": "https://registry.npmjs.org/react-markdown/-/react-markdown-10.1.0.tgz",
@@ -5596,15 +5588,6 @@
         "react-dom": ">=16.8"
       }
     },
-    "node_modules/react-side-effect": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/react-side-effect/-/react-side-effect-2.1.2.tgz",
-      "integrity": "sha512-PVjOcvVOyIILrYoyGEpDN3vmYNLdy1CajSFNt4TDsVQC5KpTijDvWVoR+/7Rz2xT978D8/ZtFceXxzsPwZEDvw==",
-      "license": "MIT",
-      "peerDependencies": {
-        "react": "^16.3.0 || ^17.0.0 || ^18.0.0"
-      }
-    },
     "node_modules/react-style-singleton": {
       "version": "2.2.3",
       "resolved": "https://registry.npmjs.org/react-style-singleton/-/react-style-singleton-2.2.3.tgz",
@@ -5805,6 +5788,12 @@
         "semver": "bin/semver.js"
       }
     },
+    "node_modules/shallowequal": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/shallowequal/-/shallowequal-1.1.0.tgz",
+      "integrity": "sha512-y0m1JoUZSlPAjXVtPPW70aZWfIL/dSP7AFkRnniLCrK/8MDKog3TySTBmckD+RObVxH0v4Tox67+F14PdED2oQ==",
+      "license": "MIT"
+    },
     "node_modules/shebang-command": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",

frontend/package.json

@@ -22,7 +22,7 @@
     "markdown-it": "^14.1.0",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",
-    "react-helmet": "^6.1.0",
+    "react-helmet-async": "^2.0.5",
     "react-markdown": "^10.1.0",
     "react-markdown-editor-lite": "^1.3.4",
     "react-router-dom": "^6.30.0",

frontend/src/App.tsx

@@ -27,57 +27,54 @@ export default () => {
   const [user, setUser] = useState<User | null> (null)
 
   useEffect (() => {
-    const createUser = () => (
-        axios.post (`${ API_BASE_URL }/users`)
-        .then (res => {
-          if (res.data.code)
-            {
-              localStorage.setItem ('user_code', res.data.code)
-              setUser (toCamel (res.data.user, { deep: true }))
-            }
-        }))
+    const createUser = async () => {
+      const { data } = await axios.post (`${ API_BASE_URL }/users`)
+      if (data.code)
+	{
+	  localStorage.setItem ('user_code', data.code)
+	  setUser (toCamel (data.user, { deep: true }))
+	}
+    }
 
     const code = localStorage.getItem ('user_code')
     if (code)
       {
-        void (axios.post (`${ API_BASE_URL }/users/verify`, { code })
-              .then (res => {
-                if (res.data.valid)
-                  setUser (toCamel (res.data.user, { deep: true }))
-                else
-                  createUser ()
-              }))
+	void (async () => {
+	  const { data } = await axios.post (`${ API_BASE_URL }/users/verify`, { code })
+	  if (data.valid)
+	    setUser (toCamel (data.user, { deep: true }))
+	  else
+	    createUser ()
+	}) ()
       }
     else
       createUser ()
-
-    alert ('このサイトはまだ作りかけです!!!!\n出てけ!!!!!!!!!!!!!!!!!!!!')
   }, [])
 
   return (
       <>
-        <Router>
-          <div className="flex flex-col h-screen w-screen">
-            <TopNav user={user} setUser={setUser} />
-            <div className="flex flex-1">
-              <Routes>
-                <Route path="/" element={<Navigate to="/posts" replace />} />
-                <Route path="/posts" element={<PostListPage />} />
-                <Route path="/posts/new" element={<PostNewPage />} />
-                <Route path="/posts/:id" element={<PostDetailPage user={user} />} />
-                <Route path="/wiki" element={<WikiSearchPage />} />
-                <Route path="/wiki/:title" element={<WikiDetailPage />} />
-                <Route path="/wiki/new" element={<WikiNewPage />} />
-                <Route path="/wiki/:id/edit" element={<WikiEditPage />} />
-                <Route path="/wiki/:id/diff" element={<WikiDiffPage />} />
-                <Route path="/wiki/changes" element={<WikiHistoryPage />} />
-                <Route path="/users/settings" element={<SettingPage user={user} setUser={setUser} />} />
-                <Route path="/settings" element={<Navigate to="/users/settings" replace />} />
-                <Route path="*" element={<NotFound />} />
-              </Routes>
-            </div>
-          </div>
-        </Router>
-        <Toaster />
+	<Router>
+	  <div className="flex flex-col h-screen w-screen">
+	    <TopNav user={user} setUser={setUser} />
+	    <div className="flex flex-1">
+	      <Routes>
+		<Route path="/" element={<Navigate to="/posts" replace />} />
+		<Route path="/posts" element={<PostListPage />} />
+		<Route path="/posts/new" element={<PostNewPage />} />
+		<Route path="/posts/:id" element={<PostDetailPage user={user} />} />
+		<Route path="/wiki" element={<WikiSearchPage />} />
+		<Route path="/wiki/:title" element={<WikiDetailPage />} />
+		<Route path="/wiki/new" element={<WikiNewPage />} />
+		<Route path="/wiki/:id/edit" element={<WikiEditPage />} />
+		<Route path="/wiki/:id/diff" element={<WikiDiffPage />} />
+		<Route path="/wiki/changes" element={<WikiHistoryPage />} />
+		<Route path="/users/settings" element={<SettingPage user={user} setUser={setUser} />} />
+		<Route path="/settings" element={<Navigate to="/users/settings" replace />} />
+		<Route path="*" element={<NotFound />} />
+	      </Routes>
+	    </div>
+	  </div>
+	</Router>
+	<Toaster />
       </>)
 }

frontend/src/components/TagDetailSidebar.tsx

@@ -47,7 +47,7 @@ export default ({ post }: Props) => {
       <SidebarComponent>
         <TagSearch />
         {CATEGORIES.map ((cat: Category) => cat in tags && (
-            <div className="my-3">
+            <div className="my-3" key={cat}>
               <SubsectionTitle>{categoryNames[cat]}</SubsectionTitle>
               <ul>
                 {tags[cat].map (tag => (

frontend/src/components/TagSidebar.tsx

@@ -32,18 +32,18 @@ export default ({ posts }: Props) => {
   loop:
     for (const post of posts)
       {
-        for (const tag of post.tags)
-          {
-            if (!(tag.category in tagsTmp))
-              tagsTmp[tag.category] = []
-            if (!(tagsTmp[tag.category].map (t => t.id).includes (tag.id)))
-              {
-                tagsTmp[tag.category].push (tag)
-                ++cnt
-                if (cnt >= 25)
-                  break loop
-              }
-          }
+	for (const tag of post.tags)
+	  {
+	    if (!(tag.category in tagsTmp))
+	      tagsTmp[tag.category] = []
+	    if (!(tagsTmp[tag.category].map (t => t.id).includes (tag.id)))
+	      {
+		tagsTmp[tag.category].push (tag)
+		++cnt
+		if (cnt >= 25)
+		  break loop
+	      }
+	  }
       }
     for (const cat of Object.keys (tagsTmp))
       tagsTmp[cat].sort ((tagA, tagB) => tagA.name < tagB.name ? -1 : 1)
@@ -52,40 +52,38 @@ export default ({ posts }: Props) => {
 
   return (
       <SidebarComponent>
-        <TagSearch />
-        <SectionTitle>タグ</SectionTitle>
-        <ul>
-          {CATEGORIES.map (cat => cat in tags && (
-              <>
-                {tags[cat].map (tag => (
-                    <li key={tag.id} className="mb-1">
-                      <Link to={`/posts?${ (new URLSearchParams ({ tags: tag.name })).toString () }`}>
-                        {tag.name}
-                      </Link>
-                      <span className="ml-1">{tag.postCount}</span>
-                    </li>))}
-              </>))}
-        </ul>
-        <SectionTitle>関聯</SectionTitle>
-        {posts.length && (
-            <a href="#"
-               onClick={ev => {
-                 ev.preventDefault ()
-                 void ((async () => {
-                   try
-                   {
-                     const { data } = await axios.get (`${ API_BASE_URL }/posts/random`,
-                         { params: { tags:  tagsQuery.split (' ').filter (e => e !== '').join (','),
-                                     match: (anyFlg ? 'any' : 'all') } })
-                     navigate (`/posts/${ (data as Post).id }`)
-                   }
-                   catch
-                   {
-                     ;
-                   }
-                 }) ())
-               }}>
-              ランダム
-            </a>)}
+	<TagSearch />
+	<SectionTitle>タグ</SectionTitle>
+	<ul>
+	  {CATEGORIES.flatMap (cat => cat in tags ? (
+	      tags[cat].map (tag => (
+		  <li key={tag.id} className="mb-1">
+		    <Link to={`/posts?${ (new URLSearchParams ({ tags: tag.name })).toString () }`}>
+		      {tag.name}
+		    </Link>
+		    <span className="ml-1">{tag.postCount}</span>
+		  </li>))) : [])}
+	</ul>
+	<SectionTitle>関聯</SectionTitle>
+	{posts.length && (
+	    <a href="#"
+	       onClick={ev => {
+		 ev.preventDefault ()
+		 void ((async () => {
+		   try
+		   {
+		     const { data } = await axios.get (`${ API_BASE_URL }/posts/random`,
+			 { params: { tags:  tagsQuery.split (' ').filter (e => e !== '').join (','),
+				     match: (anyFlg ? 'any' : 'all') } })
+		     navigate (`/posts/${ (data as Post).id }`)
+		   }
+		   catch
+		   {
+		     ;
+		   }
+		 }) ())
+	       }}>
+	      ランダム
+	    </a>)}
       </SidebarComponent>)
 }

frontend/src/components/users/InheritDialogue.tsx

@@ -0,0 +1,21 @@
+import { Button } from '@/components/ui/button'
+import { Dialog,
+         DialogContent,
+         DialogDescription,
+         DialogTitle,
+         DialogTrigger } from '@/components/ui/dialog'
+
+type Props = { visible:         boolean
+	       onVisibleChange: (visible: boolean) => void
+	       user:            User | null,
+	       setUser:         (user: User) => void }
+
+
+export default ({ visible, onVisibleChange, user, setUser }: Props) => {
+  return (
+      <Dialog open={visible} onOpenChange={onVisibleChange}>
+        <DialogContent className="space-y-6">
+          <DialogTitle>ほかのブラウザから引継ぐ</DialogTitle>
+	</DialogContent>
+      </Dialog>)
+}

frontend/src/components/users/UserCodeDialogue.tsx

@@ -0,0 +1,32 @@
+import { Button } from '@/components/ui/button'
+import { Dialog,
+         DialogContent,
+         DialogDescription,
+         DialogTitle,
+         DialogTrigger } from '@/components/ui/dialog'
+
+type Props = { visible:         boolean
+	       onVisibleChange: (visible: boolean) => void
+	       user:            User | null }
+
+
+export default ({ visible, onVisibleChange, user }: Props) => {
+  return (
+      <Dialog open={visible} onOpenChange={onVisibleChange}>
+        <DialogContent className="space-y-6">
+          <DialogTitle>引継ぎコード</DialogTitle>
+	  <div>
+	    <p>あなたの引継ぎコードはこちらです：</p>
+	    <div className="m-2">{user?.inheritanceCode}</div>
+	    <p className="mt-1 text-sm text-red-500">
+	      このコードはほかの人には教えないでください!
+	    </p>
+	    <div className="my-4">
+	      <Button className="px-4 py-2 bg-red-600 text-white rounded disabled:bg-gray-400">
+		引継ぎコードを変更する
+	      </Button>
+	    </div>
+	  </div>
+	</DialogContent>
+      </Dialog>)
+}

frontend/src/consts.ts

@@ -7,3 +7,7 @@ export const CATEGORIES = ['general',
                            'meta'] as const
 
 export const USER_ROLES = ['admin', 'member', 'guest'] as const
+
+export const enum ViewFlagBehavior { OnShowedDetail = 1,
+				     OnClickedLink  = 2,
+				     NotAuto        = 3 }

frontend/src/main.tsx

@@ -1,10 +1,15 @@
 import { StrictMode } from 'react'
 import { createRoot } from 'react-dom/client'
-import './index.css'
-import App from './App.tsx'
+import { HelmetProvider } from 'react-helmet-async'
 
-createRoot(document.getElementById('root')!).render(
-  <StrictMode>
-    <App />
-  </StrictMode>,
-)
+import '@/index.css'
+import App from '@/App'
+
+const helmetContext = { }
+
+createRoot (document.getElementById ('root')!).render (
+    <StrictMode>
+      <HelmetProvider context={helmetContext}>
+	<App />
+      </HelmetProvider>
+    </StrictMode>)

frontend/src/pages/NotFound.tsx

@@ -1,4 +1,4 @@
-import { Helmet } from 'react-helmet'
+import { Helmet } from 'react-helmet-async'
 
 import MainArea from '@/components/layout/MainArea'
 import { SITE_TITLE } from '@/config'

frontend/src/pages/posts/PostDetailPage.tsx

@@ -1,7 +1,7 @@
 import axios from 'axios'
 import toCamel from 'camelcase-keys'
 import React, { useEffect, useState } from 'react'
-import { Helmet } from 'react-helmet'
+import { Helmet } from 'react-helmet-async'
 import { Link, useLocation, useParams } from 'react-router-dom'
 
 import TagDetailSidebar from '@/components/TagDetailSidebar'

frontend/src/pages/posts/PostListPage.tsx

@@ -1,7 +1,7 @@
 import axios from 'axios'
 import toCamel from 'camelcase-keys'
 import React, { useEffect, useRef, useState } from 'react'
-import { Helmet } from 'react-helmet'
+import { Helmet } from 'react-helmet-async'
 import { Link, useLocation } from 'react-router-dom'
 
 import TagSidebar from '@/components/TagSidebar'
@@ -14,7 +14,7 @@ import type { Post, Tag, WikiPage } from '@/types'
 
 
 export default () => {
-  const [posts, setPosts] = useState<Post[] | null> (null)
+  const [posts, setPosts] = useState<Post[]> ([])
   const [wikiPage, setWikiPage] = useState<WikiPage | null> (null)
   const [cursor, setCursor] = useState ('')
   const [loading, setLoading] = useState (false)
@@ -24,11 +24,11 @@ export default () => {
   const loadMore = async withCursor => {
     setLoading (true)
     const res = await axios.get (`${ API_BASE_URL }/posts`, {
-        params: { tags:   tags.join (' '),
-                  match:  (anyFlg ? 'any' : 'all'),
-                  ...(withCursor ? { cursor } : { }) } })
+	params: { tags:   tags.join (' '),
+		  match:  (anyFlg ? 'any' : 'all'),
+		  ...(withCursor ? { cursor } : { }) } })
     const data = toCamel (res.data, { deep: true })
-    setPosts (posts => [...(posts || []), ...data.posts])
+    setPosts (posts => [...(withCursor ? posts : []), ...data.posts])
     setCursor (data.nextCursor)
     setLoading (false)
   }
@@ -42,7 +42,7 @@ export default () => {
   useEffect(() => {
     const observer = new IntersectionObserver (entries => {
       if (entries[0].isIntersecting && !(loading) && cursor)
-        loadMore (true)
+	loadMore (true)
     }, { threshold: 1 })
 
     const target = loaderRef.current
@@ -52,58 +52,65 @@ export default () => {
   }, [loaderRef, loading])
 
   useEffect (() => {
-    setPosts (null)
-    setCursor ('')
+    setPosts ([])
     loadMore (false)
 
     setWikiPage (null)
     if (tags.length === 1)
       {
-        void (axios.get (`${ API_BASE_URL }/wiki/title/${ encodeURIComponent (tags[0]) }`)
-              .then (res => setWikiPage (toCamel (res.data, { deep: true })))
-              .catch (() => {
-                ;
-              }))
+	void (async () => {
+	  try
+	  {
+	    const tagName = tags[0]
+	    const { data } = await axios.get (`${ API_BASE_URL }/wiki/title/${ tagName }`)
+	    setWikiPage (toCamel (data, { deep: true }))
+	  }
+	  catch
+	  {
+	    ;
+	  }
+	}) ()
       }
   }, [location.search])
 
   return (
       <>
-        <Helmet>
-          <title>
-            {tags.length
-             ? `${ tags.join (anyFlg ? ' or ' : ' and ') } | ${ SITE_TITLE }`
-             : `${ SITE_TITLE }　〜 ぼざクリ関聯綜合リンク集サイト`}
-          </title>
-        </Helmet>
-        <TagSidebar posts={posts?.slice (0, 20) || []} />
-        <MainArea>
-          <TabGroup key={wikiPage}>
-            <Tab name="広場">
-              {posts == null ? 'Loading...' : (
-                  posts.length
-                  ? (
-                     <div className="flex flex-wrap gap-4 p-4">
-                       {posts.map (post => (
-                           <Link to={`/posts/${ post.id }`}
-                                 key={post.id}
-                                 className="w-40 h-40 overflow-hidden rounded-lg shadow-md hover:shadow-lg">
-                             <img src={post.thumbnail ?? post.thumbnailBase}
-                                  alt={post.title || post.url}
-                                  className="object-none w-full h-full" />
-                           </Link>))}
-                     </div>)
-                  : '広場には何もありませんよ．')}
-              <div ref={loaderRef} className="h-12"></div>
-            </Tab>
-            {(wikiPage && wikiPage.body) && (
-                <Tab name="Wiki" init={posts && !(posts.length)}>
-                  <WikiBody body={wikiPage.body} />
-                  <div className="my-2">
-                    <Link to={`/wiki/${ wikiPage.title }`}>Wiki を見る</Link>
-                  </div>
-                </Tab>)}
-          </TabGroup>
-        </MainArea>
+	<Helmet>
+	  <title>
+	    {tags.length
+	     ? `${ tags.join (anyFlg ? ' or ' : ' and ') } | ${ SITE_TITLE }`
+	     : `${ SITE_TITLE }　〜 ぼざクリ関聯綜合リンク集サイト`}
+	  </title>
+	</Helmet>
+	<TagSidebar posts={posts.slice (0, 20)} />
+	<MainArea>
+	  <TabGroup key={wikiPage}>
+	    <Tab name="広場">
+	      {posts.length
+	       ? (
+		  <div className="flex flex-wrap gap-4 p-4">
+		  {posts.map (post => (
+		      <Link to={`/posts/${ post.id }`}
+			    key={post.id}
+			    className="w-40 h-40 overflow-hidden rounded-lg shadow-md hover:shadow-lg">
+			<img src={post.thumbnail || post.thumbnailBase || null}
+			     alt={post.title || post.url}
+			     title={post.title || post.url || null}
+			     className="object-none w-full h-full" />
+		      </Link>))}
+		  </div>)
+	       : !(loading) && '広場には何もありませんよ．'}
+	      {loading && 'Loading...'}
+	      <div ref={loaderRef} className="h-12"></div>
+	    </Tab>
+	    {(wikiPage && wikiPage.body) && (
+		<Tab name="Wiki" init={!(posts.length)}>
+		  <WikiBody body={wikiPage.body} />
+		  <div className="my-2">
+		    <Link to={`/wiki/${ wikiPage.title }`}>Wiki を見る</Link>
+		  </div>
+		</Tab>)}
+	  </TabGroup>
+	</MainArea>
       </>)
 }

frontend/src/pages/posts/PostNewPage.tsx

@@ -1,6 +1,6 @@
 import axios from 'axios'
 import React, { useEffect, useState, useRef } from 'react'
-import { Helmet } from 'react-helmet'
+import { Helmet } from 'react-helmet-async'
 import { Link, useLocation, useParams, useNavigate } from 'react-router-dom'
 
 import NicoViewer from '@/components/NicoViewer'
@@ -49,8 +49,8 @@ export default () => {
             toast ({ title: '投稿成功!' })
             navigate ('/posts')
           })
-          .catch (e => toast ({ title:        '投稿失敗',
-                                description:  '入力を確認してください。' })))
+          .catch (() => toast ({ title:        '投稿失敗',
+                                 description:  '入力を確認してください。' })))
   }
 
   useEffect (() => {

frontend/src/pages/users/SettingPage.tsx

@@ -1,50 +1,103 @@
 import { useEffect, useState } from 'react'
-import { Helmet } from 'react-helmet'
+import { Helmet } from 'react-helmet-async'
 
 import Form from '@/components/common/Form'
 import Label from '@/components/common/Label'
 import PageTitle from '@/components/common/PageTitle'
 import MainArea from '@/components/layout/MainArea'
-import { SITE_TITLE } from '@/config'
+import InheritDialogue from '@/components/users/InheritDialogue'
+import UserCodeDialogue from '@/components/users/UserCodeDialogue'
+import { API_BASE_URL, SITE_TITLE } from '@/config'
+import { Button } from '@/components/ui/button'
 
 import type { User } from '@/types'
 
-type Props = { user:    User
-               setUser: (user: User) => void }
+type Props = { user:    User | null
+	       setUser: (user: User) => void }
 
 
 export default ({ user, setUser }: Props) => {
   const [name, setName] = useState ('')
+  const [userCodeVsbl, setUserCodeVsbl] = useState (false)
+  const [inheritVsbl, setInheritVsbl] = useState (false)
+
+  const handleSubmit = async () => {
+    const formData = new FormData ()
+    formData.append ('name', name)
+
+    try
+    {
+      await axios.post (`${ API_BASE_URL }/users`, formData, { headers: {
+	  'Content-Type':     'multipart/form-data',
+	  'X-Transfer-Code':  localStorage.getItem ('user_code') || '' } })
+      toast ({ title: '設定を更新しました．' })
+    }
+    catch
+    {
+      toast ({ title: 'しっぱい……' })
+    }
+  }
 
   useEffect (() => {
     if (!user)
       return
 
-    setName (user?.name)
+    setName (user.name)
   }, [user])
 
   return (
       <MainArea>
-        <Helmet>
-          <meta name="robots" content="noindex" />
-          <title>設定 | {SITE_TITLE}</title>
-        </Helmet>
-        <Form>
-          <PageTitle>設定</PageTitle>
-
-          {/* 名前 */}
-          <div>
-            <Label>表示名</Label>
-            <input type="text"
-                   className="w-full border rounded p-2"
-                   value={name}
-                   placeholder="名もなきニジラー"
-                   onChange={ev => setName (ev.target.value)} />
-            {(user && !(user.name)) && (
-                <p class="mt-1 text-sm text-red-500">
-                  名前が未設定のアカウントは 30 日間アクセスしないと削除されます!!!!
-                </p>)}
-          </div>
-        </Form>
+	<Helmet>
+	  <meta name="robots" content="noindex" />
+	  <title>設定 | {SITE_TITLE}</title>
+	</Helmet>
+
+	<Form>
+	  <PageTitle>設定</PageTitle>
+
+	  {/* 名前 */}
+	  <div>
+	    <Label>表示名</Label>
+	    <input type="text"
+		   className="w-full border rounded p-2"
+		   value={name}
+		   placeholder="名もなきニジラー"
+		   onChange={ev => setName (ev.target.value)} />
+	    {(user && !(user.name)) && (
+		<p className="mt-1 text-sm text-red-500">
+		  名前が未設定のアカウントは 30 日間アクセスしないと削除されます!!!!
+		</p>)}
+	  </div>
+
+	  {/* 送信 */}
+          <Button onClick={handleSubmit}
+                  className="px-4 py-2 bg-blue-600 text-white rounded disabled:bg-gray-400">
+	    更新
+	  </Button>
+
+	  {/* 引継ぎ */}
+	  <div>
+	    <Label>引継ぎ</Label>
+	    <Button onClick={() => setUserCodeVsbl (true)}
+		    className="px-4 py-2 bg-gray-600 text-white rounded disabled:bg-gray-400"
+		    disabled={!(user)}>
+	      引継ぎコードを表示
+	    </Button>
+	    <Button onClick={() => setInheritVsbl (true)}
+		    className="ml-2 px-4 py-2 bg-red-600 text-white rounded disabled:bg-gray-400"
+		    disabled={!(user)}>
+	      ほかのブラウザから引継ぐ
+	    </Button>
+	  </div>
+	</Form>
+
+	<UserCodeDialogue visible={userCodeVsbl}
+			  onVisibleChange={setUserCodeVsbl}
+			  user={user} />
+
+	<InheritDialogue visible={inheritVsbl}
+			 onVisibleChange={setInheritVsbl}
+			 user={user}
+			 setUser={setUser} />
       </MainArea>)
 }

frontend/src/pages/wiki/WikiDetailPage.tsx

@@ -1,7 +1,7 @@
 import axios from 'axios'
 import toCamel from 'camelcase-keys'
 import { useEffect, useState } from 'react'
-import { Helmet } from 'react-helmet'
+import { Helmet } from 'react-helmet-async'
 import { Link, useLocation, useNavigate, useParams } from 'react-router-dom'
 
 import WikiBody from '@/components/WikiBody'

frontend/src/pages/wiki/WikiDiffPage.tsx

@@ -1,7 +1,7 @@
 import axios from 'axios'
 import toCamel from 'camelcase-keys'
 import { useEffect, useState } from 'react'
-import { Helmet } from 'react-helmet'
+import { Helmet } from 'react-helmet-async'
 import { Link, useLocation, useParams } from 'react-router-dom'
 
 import PageTitle from '@/components/common/PageTitle'

frontend/src/pages/wiki/WikiEditPage.tsx

@@ -1,7 +1,7 @@
 import axios from 'axios'
 import MarkdownIt from 'markdown-it'
 import React, { useEffect, useState, useRef } from 'react'
-import { Helmet } from 'react-helmet'
+import { Helmet } from 'react-helmet-async'
 import MdEditor from 'react-markdown-editor-lite'
 import { Link, useLocation, useParams, useNavigate } from 'react-router-dom'
 

frontend/src/pages/wiki/WikiHistoryPage.tsx

@@ -1,7 +1,7 @@
 import axios from 'axios'
 import toCamel from 'camelcase-keys'
 import { useEffect, useState } from 'react'
-import { Helmet } from 'react-helmet'
+import { Helmet } from 'react-helmet-async'
 import { Link, useLocation, useParams } from 'react-router-dom'
 
 import MainArea from '@/components/layout/MainArea'

frontend/src/pages/wiki/WikiNewPage.tsx

@@ -1,7 +1,7 @@
 import axios from 'axios'
 import MarkdownIt from 'markdown-it'
 import React, { useEffect, useState, useRef } from 'react'
-import { Helmet } from 'react-helmet'
+import { Helmet } from 'react-helmet-async'
 import MdEditor from 'react-markdown-editor-lite'
 import { Link, useLocation, useParams, useNavigate } from 'react-router-dom'
 

frontend/src/pages/wiki/WikiSearchPage.tsx

@@ -1,7 +1,7 @@
 import axios from 'axios'
 import toCamel from 'camelcase-keys'
 import React, { useEffect, useState } from 'react'
-import { Helmet } from 'react-helmet'
+import { Helmet } from 'react-helmet-async'
 import { Link } from 'react-router-dom'
 import SectionTitle from '@/components/common/SectionTitle'
 import MainArea from '@/components/layout/MainArea'

frontend/src/router.tsx

@@ -0,0 +1,5 @@
+import { Route,
+	 createBrowserRouter,
+	 createRoutesFromElements } from 'react-router-dom'
+
+import App from '@/App'

frontend/vite.config.ts

@@ -2,15 +2,17 @@ import { defineConfig } from 'vite'
 import react from '@vitejs/plugin-react'
 import path from 'path'
 
+
 // https://vite.dev/config/
-export default defineConfig({
-  plugins:  [react()],
-  resolve:  { alias: { '@': path.resolve (__dirname, './src') } },
-  server:   { host:         true,
-              port:         5173,
-              strictPort:   true,
-              allowedHosts: ['hub.nizika.monster', 'localhost'],
-              proxy:        { '/api': { target:       'http://localhost:3002',
-                                        changeOrigin: true,
-                                        secure:       false } } }
-})
+export default defineConfig ({
+    plugins:  [react()],
+    resolve:  { alias: { '@': path.resolve (__dirname, './src') } },
+    server:   { host:         true,
+		port:         5173,
+		strictPort:   true,
+		allowedHosts: ['hub.nizika.monster', 'localhost'],
+		proxy:        { '/api': { target:       'http://localhost:3002',
+					  changeOrigin: true,
+					  secure:       false } },
+		watch:        { usePolling: true,
+				interval: 100 } } })