feat(ui.client): add plans page with markdown rendering

- Add PlansPage component with DOMPurify-sanitized markdown rendering
- Add AbortController to prevent race conditions on fast switching
- Memoize marked.parse output
- Add key={env} to PlansPage for env-consistent remount
- Encode filename in API request to handle special chars
- Fix backend: fileURLToPath instead of import.meta.dirname
- Fix backend: try/catch on readdir, remove redundant stat calls
- Fix backend: block backslash path traversal

backend/src/routes/plans.ts

@@ -1,19 +1,32 @@
 import { readdir, readFile, stat } from 'node:fs/promises'
 import { resolve, extname } from 'node:path'
+import { fileURLToPath } from 'node:url'
 import type { FastifyInstance } from 'fastify'
 
-const PLANS_DIR = resolve(import.meta.dirname || __dirname, '../../plans')
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = resolve(__filename, '..')
+const PLANS_DIR = resolve(__dirname, '../../plans')
 
 export async function plansRoutes(app: FastifyInstance): Promise<void> {
   app.get('/api/plans', async () => {
-    const files = await readdir(PLANS_DIR)
+    let files: string[]
+    try {
+      files = await readdir(PLANS_DIR)
+    } catch {
+      return []
+    }
+
     const mdFiles: { name: string; path: string; size: number }[] = []
 
     for (const file of files) {
       if (extname(file) !== '.md') continue
       const fullPath = resolve(PLANS_DIR, file)
+      try {
         const stats = await stat(fullPath)
         mdFiles.push({ name: file, path: file, size: stats.size })
+      } catch {
+        // skip files that can't be stat'd
+      }
     }
 
     mdFiles.sort((a, b) => b.name.localeCompare(a.name))
@@ -23,19 +36,17 @@ export async function plansRoutes(app: FastifyInstance): Promise<void> {
   app.get<{ Params: { filename: string } }>('/api/plans/:filename', async (request, reply) => {
     const { filename } = request.params
 
-    if (extname(filename) !== '.md' || filename.includes('..') || filename.includes('/')) {
+    if (extname(filename) !== '.md' || filename.includes('..') || filename.includes('/') || filename.includes('\\')) {
       return reply.status(400).send({ error: 'Invalid filename' })
     }
 
     const fullPath = resolve(PLANS_DIR, filename)
 
     try {
-      await stat(fullPath)
+      const content = await readFile(fullPath, 'utf-8')
+      return { name: filename, content }
     } catch {
       return reply.status(404).send({ error: 'File not found' })
     }
-
-    const content = await readFile(fullPath, 'utf-8')
-    return { name: filename, content }
   })
 }

frontend/package-lock.json

@@ -9,10 +9,13 @@
       "version": "1.0.0",
       "dependencies": {
         "crypto-pro": "^2.3.0",
+        "dompurify": "^3.4.11",
+        "marked": "^12.0.0",
         "react": "^19.0.0",
         "react-dom": "^19.0.0"
       },
       "devDependencies": {
+        "@types/dompurify": "^3.0.5",
         "@types/react": "^19.0.0",
         "@types/react-dom": "^19.0.0",
         "@vitejs/plugin-react": "^4.3.4",
@@ -1104,9 +1107,6 @@
         "arm"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1121,9 +1121,6 @@
         "arm"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1138,9 +1135,6 @@
         "arm64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1155,9 +1149,6 @@
         "arm64"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1172,9 +1163,6 @@
         "loong64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1189,9 +1177,6 @@
         "loong64"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1206,9 +1191,6 @@
         "ppc64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1223,9 +1205,6 @@
         "ppc64"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1240,9 +1219,6 @@
         "riscv64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1257,9 +1233,6 @@
         "riscv64"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1274,9 +1247,6 @@
         "s390x"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1291,9 +1261,6 @@
         "x64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1308,9 +1275,6 @@
         "x64"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1446,6 +1410,16 @@
         "@babel/types": "^7.28.2"
       }
     },
+    "node_modules/@types/dompurify": {
+      "version": "3.0.5",
+      "resolved": "https://registry.npmjs.org/@types/dompurify/-/dompurify-3.0.5.tgz",
+      "integrity": "sha512-1Wg0g3BtQF7sSb27fJQAKck1HECM6zV1EB66j8JH9i3LCjYabJa0FSdiSgsD5K/RbrsR0SiraKacLB+T8ZVYAg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/trusted-types": "*"
+      }
+    },
     "node_modules/@types/estree": {
       "version": "1.0.9",
       "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.9.tgz",
@@ -1480,6 +1454,13 @@
         "@types/react": "^19.2.0"
       }
     },
+    "node_modules/@types/trusted-types": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.7.tgz",
+      "integrity": "sha512-ScaPdn1dQczgbl0QFTeTOmVHFULt394XJgOQNoyVhZ6r2vLnMLJfBPd53SB52T/3G36VI1/g2MZaX0cwDuXsfw==",
+      "devOptional": true,
+      "license": "MIT"
+    },
     "node_modules/@vitejs/plugin-react": {
       "version": "4.7.0",
       "resolved": "https://registry.npmjs.org/@vitejs/plugin-react/-/plugin-react-4.7.0.tgz",
@@ -1764,6 +1745,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/dompurify": {
+      "version": "3.4.11",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.4.11.tgz",
+      "integrity": "sha512-zhlUV12GsaRzMsf9q5M254YhA4+VuF0fG+QFqu6aYpoGlKtz+w8//jBcGVYBgQkR5GHjUomejY84AV+/uPbWdw==",
+      "license": "(MPL-2.0 OR Apache-2.0)",
+      "optionalDependencies": {
+        "@types/trusted-types": "^2.0.7"
+      }
+    },
     "node_modules/electron-to-chromium": {
       "version": "1.5.389",
       "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.389.tgz",
@@ -2342,6 +2332,18 @@
         "yallist": "^3.0.2"
       }
     },
+    "node_modules/marked": {
+      "version": "12.0.2",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-12.0.2.tgz",
+      "integrity": "sha512-qXUm7e/YKFoqFPYPa3Ukg9xlI5cyAtGmyEIzMfW//m6kXwCy2Ps9DYf5ioijFKQ8qyuscrHoY04iJGctu2Kg0Q==",
+      "license": "MIT",
+      "bin": {
+        "marked": "bin/marked.js"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
     "node_modules/minimatch": {
       "version": "3.1.5",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.5.tgz",

frontend/package.json

@@ -12,11 +12,13 @@
   },
   "dependencies": {
     "crypto-pro": "^2.3.0",
+    "dompurify": "^3.4.11",
+    "marked": "^12.0.0",
     "react": "^19.0.0",
-    "react-dom": "^19.0.0",
+    "react-dom": "^19.0.0"
-    "marked": "^12.0.0"
   },
   "devDependencies": {
+    "@types/dompurify": "^3.0.5",
     "@types/react": "^19.0.0",
     "@types/react-dom": "^19.0.0",
     "@vitejs/plugin-react": "^4.3.4",

frontend/src/App.tsx

@@ -2,10 +2,11 @@ import { useState, useEffect } from 'react'
 import { AuthPage } from './pages/AuthPage'
 import { CheckCodesPage } from './pages/CheckCodesPage'
 import { UploadUpdPage } from './pages/UploadUpdPage'
+import { PlansPage } from './pages/PlansPage'
 import { setOnUnauthorized, logout as apiLogout, getEnv, setEnv, getAuthStatus } from './services/api'
 import type { ApiEnv } from './types'
 
-type Page = 'auth' | 'check' | 'upload'
+type Page = 'auth' | 'check' | 'upload' | 'plans'
 
 export default function App() {
   const [page, setPage] = useState<Page>('auth')
@@ -77,6 +78,10 @@ export default function App() {
             disabled={!authenticated}>
             Загрузка УПД
           </button>
+          <button onClick={() => setPage('plans')}
+            style={navBtnStyle(page === 'plans')}>
+            Планы
+          </button>
         </nav>
         <div style={{ marginLeft: 'auto', fontSize: 13, display: 'flex', alignItems: 'center', gap: 12 }}>
           <label>
@@ -119,6 +124,7 @@ export default function App() {
         {page === 'auth' && <AuthPage key={env} onAuth={handleAuth} />}
         {page === 'check' && <CheckCodesPage key={env} />}
         {page === 'upload' && <UploadUpdPage key={env} />}
+        {page === 'plans' && <PlansPage key={env} />}
       </main>
     </div>
   )

frontend/src/pages/PlansPage.tsx

@@ -0,0 +1,116 @@
+import { useState, useEffect, useCallback, useMemo, useRef } from 'react'
+import { marked } from 'marked'
+import DOMPurify from 'dompurify'
+import { getPlansList, getPlanContent } from '../services/api'
+
+export function PlansPage() {
+  const [plans, setPlans] = useState<{ name: string; path: string; size: number }[]>([])
+  const [selected, setSelected] = useState<string | null>(null)
+  const [content, setContent] = useState('')
+  const [listLoading, setListLoading] = useState(true)
+  const [contentLoading, setContentLoading] = useState(false)
+  const [listError, setListError] = useState('')
+  const [contentError, setContentError] = useState('')
+  const abortRef = useRef<AbortController | null>(null)
+
+  useEffect(() => {
+    setListLoading(true)
+    getPlansList()
+      .then(setPlans)
+      .catch(e => setListError(e.message))
+      .finally(() => setListLoading(false))
+  }, [])
+
+  useEffect(() => {
+    return () => abortRef.current?.abort()
+  }, [])
+
+  const handleSelect = useCallback(async (filename: string) => {
+    abortRef.current?.abort()
+    const controller = new AbortController()
+    abortRef.current = controller
+
+    setSelected(filename)
+    setContentLoading(true)
+    setContentError('')
+    try {
+      const res = await getPlanContent(filename)
+      if (!controller.signal.aborted) {
+        setContent(res.content)
+      }
+    } catch (e: any) {
+      if (!controller.signal.aborted) {
+        setContentError(e.message)
+      }
+    } finally {
+      if (!controller.signal.aborted) {
+        setContentLoading(false)
+      }
+    }
+  }, [])
+
+  const rawHtml = useMemo(() => {
+    if (!content) return ''
+    return marked.parse(content, { async: false }) as string
+  }, [content])
+
+  const sanitizedHtml = useMemo(() => {
+    return DOMPurify.sanitize(rawHtml)
+  }, [rawHtml])
+
+  return (
+    <div style={{ display: 'flex', gap: 24, minHeight: '70vh' }}>
+      <aside style={{ width: 280, flexShrink: 0 }}>
+        <h2 style={{ fontSize: 16, marginTop: 0 }}>Планы</h2>
+        {listLoading && <p style={{ color: '#888' }}>Загрузка...</p>}
+        {!listLoading && plans.length === 0 && !listError && (
+          <p style={{ color: '#888' }}>Нет файлов планов</p>
+        )}
+        {listError && <p style={{ color: '#c62828' }}>{listError}</p>}
+        <ul style={{ listStyle: 'none', padding: 0, margin: 0 }}>
+          {plans.map(p => (
+            <li key={p.name} style={{ marginBottom: 4 }}>
+              <button
+                onClick={() => handleSelect(p.name)}
+                style={{
+                  display: 'block',
+                  width: '100%',
+                  textAlign: 'left',
+                  background: selected === p.name ? '#e3f2fd' : 'transparent',
+                  border: selected === p.name ? '1px solid #90caf9' : '1px solid transparent',
+                  borderRadius: 4,
+                  padding: '8px 12px',
+                  cursor: 'pointer',
+                  fontSize: 13,
+                  color: '#1565c0',
+                  fontFamily: 'monospace',
+                }}
+              >
+                {p.name}
+              </button>
+            </li>
+          ))}
+        </ul>
+      </aside>
+
+      <main style={{ flex: 1, minWidth: 0 }}>
+        {contentLoading && <p style={{ color: '#888' }}>Загрузка содержимого...</p>}
+        {!contentLoading && !selected && (
+          <p style={{ color: '#888', marginTop: 40, textAlign: 'center' }}>
+            Выберите план из списка слева
+          </p>
+        )}
+        {!contentLoading && selected && contentError && (
+          <p style={{ color: '#c62828' }}>Ошибка: {contentError}</p>
+        )}
+        {!contentLoading && selected && !contentError && (
+          <div
+            className="plan-content"
+            style={{ lineHeight: 1.7, fontSize: 14 }}
+            dangerouslySetInnerHTML={{ __html: sanitizedHtml }}
+          />
+        )}
+      </main>
+    </div>
+  )
+}

frontend/src/services/api.ts

@@ -102,5 +102,5 @@ export async function getPlansList(): Promise<{ name: string; path: string; size
 }
 
 export async function getPlanContent(filename: string): Promise<{ name: string; content: string }> {
-  return request(`/api/plans/${filename}`)
+  return request(`/api/plans/${encodeURIComponent(filename)}`)
 }