fix: make hosted downloads controllable and failures diagnosable

Catalog missing skin-site messages and check source IDs during i18n validation. Renew the saved JWT before loading session data, guard overlapping login/logout requests, and reload announcements after authentication with a retry action.

.github/workflows/build-on-tag.yml

@@ -51,6 +51,7 @@ jobs:
           node scripts/axolotl/check-migrations.mjs --release
           node scripts/axolotl/brand-guard.mjs
           node scripts/axolotl/i18n-check.mjs
+          node --test scripts/axolotl/publish-skin-site.test.mjs
           cargo fmt --all --check
 
       - name: Check updater signing configuration
@@ -286,6 +287,9 @@ jobs:
     name: Verify and publish
     needs: build
     runs-on: ubuntu-24.04
+    concurrency:
+      group: skin-site-${{ github.ref_name }}
+      cancel-in-progress: false
     env:
       UPDATE_SERVER_URL: ${{ secrets.UPDATE_SERVER_URL }}
       UPDATE_SERVER_WEBHOOK_SECRET: ${{ secrets.UPDATE_SERVER_WEBHOOK_SECRET }}
@@ -298,6 +302,11 @@ jobs:
           fetch-depth: 0
           ref: ${{ github.ref }}
 
+      - name: Set up Node.js
+        uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
+        with:
+          node-version-file: .nvmrc
+
       - name: Download updater signatures
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -375,42 +384,14 @@ jobs:
           gh release upload "${GITHUB_REF_NAME}" "release-check/${bundle_name}" --clobber
 
       - name: Publish to skin site
-        continue-on-error: true
         env:
           SKIN_SITE_TOKEN: ${{ secrets.SKIN_SITE_CI_UPLOAD_TOKEN }}
           SKIN_SITE_URL: ${{ vars.SKIN_SITE_URL || 'https://skin.starlight.cool' }}
         run: |
           set -euo pipefail
-          if [ -z "${SKIN_SITE_TOKEN:-}" ]; then
-            echo "::warning::SKIN_SITE_CI_UPLOAD_TOKEN not configured, skipping skin site publish"
-            exit 0
-          fi
-
           version="${GITHUB_REF_NAME#v}"
           bundle="release-check/Starlight_Launcher_${version}_skin-site-update.zip"
-          if [ ! -f "${bundle}" ]; then
-            echo "::warning::Bundle ${bundle} not found, skipping skin site publish"
-            exit 0
-          fi
-
-          upload_response=$(curl -fsS -X POST \
-            -H "Authorization: Bearer ${SKIN_SITE_TOKEN}" \
-            -F "archive=@${bundle};type=application/zip" \
-            "${SKIN_SITE_URL}/starlight/launcher/admin/upload?forceUpdate=false")
-
-          release_id=$(printf '%s' "${upload_response}" | jq -r '.payload.id // empty')
-          if [ -z "${release_id}" ]; then
-            echo "::warning::Skin site upload did not return a release id: ${upload_response}"
-            exit 0
-          fi
-
-          echo "Uploaded release id: ${release_id}"
-
-          curl -fsS -X POST \
-            -H "Authorization: Bearer ${SKIN_SITE_TOKEN}" \
-            "${SKIN_SITE_URL}/starlight/launcher/admin/${release_id}/activate"
-
-          echo "Skin site release ${version} published"
+          node scripts/axolotl/publish-skin-site.mjs "${bundle}" "${GITHUB_REF_NAME}"
 
       - name: Notify Update Server to publish release assets
         if: ${{ env.UPDATE_SERVER_URL != '' && env.UPDATE_SERVER_WEBHOOK_SECRET != '' }}

.github/workflows/check-skin-site-auth.yml

@@ -0,0 +1,49 @@
+name: Diagnose skin site CI authentication
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  diagnose:
+    runs-on: ubuntu-24.04
+    timeout-minutes: 5
+    steps:
+      - name: Inspect token format without revealing credentials
+        env:
+          SKIN_SITE_TOKEN: ${{ secrets.SKIN_SITE_CI_UPLOAD_TOKEN }}
+          SKIN_SITE_URL: ${{ vars.SKIN_SITE_URL || 'https://skin.starlight.cool' }}
+        run: |
+          node --input-type=module <<'NODE'
+          const token = process.env.SKIN_SITE_TOKEN || ''
+          const checks = {
+            configured: token.length > 0,
+            containsWhitespace: /\s/.test(token),
+            containsComma: token.includes(','),
+            containsQuotes: /["']/.test(token),
+            containsBearerPrefix: /^Bearer\s/i.test(token),
+            bearerTokenFormatValid: /^[A-Za-z0-9._~+/-]+=*$/.test(token),
+          }
+          console.log(JSON.stringify(checks))
+          if (!checks.bearerTokenFormatValid) {
+            console.error('::error::CI secret is not a valid Bearer token. No credential value has been logged.')
+            process.exitCode = 1
+          } else {
+            const base = process.env.SKIN_SITE_URL.replace(/\/$/, '')
+            if (new URL(base).protocol !== 'https:') throw new Error('HTTPS is required')
+            try {
+              const response = await fetch(base + '/starlight/launcher/admin', {
+                headers: { Authorization: 'Bearer ' + token, Accept: 'application/json' },
+                redirect: 'error', signal: AbortSignal.timeout(30000),
+              })
+              console.log('Read-only CI authentication HTTP status: ' + response.status)
+              await response.body?.cancel()
+              if (!response.ok) process.exitCode = 1
+            } catch {
+              console.error('::error::Read-only CI authentication request failed; credentials have not been logged.')
+              process.exitCode = 1
+            }
+          }
+          NODE

.github/workflows/publish-skin-site.yml

@@ -0,0 +1,56 @@
+name: Sync release to skin site
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: Existing GitHub release tag to sync (for example v1.0.2-beta10)
+        required: true
+        type: string
+
+permissions:
+  contents: read
+
+concurrency:
+  group: skin-site-${{ inputs.tag }}
+  cancel-in-progress: false
+
+jobs:
+  publish:
+    name: Upload and activate existing release
+    runs-on: ubuntu-24.04
+    timeout-minutes: 40
+    steps:
+      - name: Check out publisher
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
+      - name: Set up Node.js
+        uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
+        with:
+          node-version-file: .nvmrc
+
+      - name: Download complete update package
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          RELEASE_TAG: ${{ inputs.tag }}
+        run: |
+          set -euo pipefail
+          if [[ ! "${RELEASE_TAG}" =~ ^v[0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z.-]+)?$ ]]; then
+            echo '::error::Expected a semantic version tag beginning with v'
+            exit 1
+          fi
+          version="${RELEASE_TAG#v}"
+          gh release download "${RELEASE_TAG}" \
+            --pattern "Starlight_Launcher_${version}_skin-site-update.zip" \
+            --dir release-check
+
+      - name: Publish to skin site
+        env:
+          RELEASE_TAG: ${{ inputs.tag }}
+          SKIN_SITE_TOKEN: ${{ secrets.SKIN_SITE_CI_UPLOAD_TOKEN }}
+          SKIN_SITE_URL: ${{ vars.SKIN_SITE_URL || 'https://skin.starlight.cool' }}
+        run: |
+          set -euo pipefail
+          version="${RELEASE_TAG#v}"
+          node scripts/axolotl/publish-skin-site.mjs \
+            "release-check/Starlight_Launcher_${version}_skin-site-update.zip" "${RELEASE_TAG}"

Cargo.lock

@@ -6841,7 +6841,7 @@ dependencies = [
 
 [[package]]
 name = "theseus"
-version = "1.0.2-beta7"
+version = "1.0.2-beta11"
 dependencies = [
  "ariadne",
  "async-minecraft-ping",
@@ -6945,7 +6945,7 @@ dependencies = [
 
 [[package]]
 name = "theseus_gui"
-version = "1.0.2-beta7"
+version = "1.0.2-beta11"
 dependencies = [
  "ashpd",
  "async_zip",

apps/app-frontend/package.json

@@ -1,77 +1,77 @@
 {
-	"name": "@modrinth/app-frontend",
-	"private": true,
-	"version": "1.0.2-beta9",
-	"type": "module",
-	"scripts": {
-		"dev": "vite",
-		"build": "vue-tsc --noEmit && vite build",
-		"tsc:check": "vue-tsc --noEmit",
-		"lint": "eslint . && prettier --check .",
-		"fix": "eslint . --fix && prettier --write .",
-		"intl:extract": "formatjs extract \"src/**/*.{vue,ts,tsx,js,jsx,mts,cts,mjs,cjs}\" --ignore \"**/*.d.ts\" --ignore node_modules --out-file src/locales/en-US/index.json --format crowdin --preserve-whitespace",
-		"intl:prune-local": "pnpm -w scripts i18n-icu-contract prune-local --scope apps/app-frontend",
-		"test": "vue-tsc --noEmit && node --test \"src/**/*.test.ts\""
-	},
-	"dependencies": {
-		"@dnd-kit/core": "6.3.1",
-		"@dnd-kit/utilities": "3.2.2",
-		"@dnd-kit/vue": "^0.5.0",
-		"@lobehub/icons-static-svg": "1.94.0",
-		"@modrinth/api-client": "workspace:^",
-		"@modrinth/assets": "workspace:*",
-		"@modrinth/server": "workspace:*",
-		"@modrinth/ui": "workspace:*",
-		"@modrinth/utils": "workspace:*",
-		"@sfirew/minecraft-motd-parser": "^1.1.6",
-		"@tanstack/vue-query": "5.90.7",
-		"@tauri-apps/api": "^2.5.0",
-		"@tauri-apps/plugin-dialog": "^2.2.1",
-		"@tauri-apps/plugin-fs": "^2.4.5",
-		"@tauri-apps/plugin-http": "~2.5.7",
-		"@tauri-apps/plugin-opener": "^2.2.6",
-		"@tauri-apps/plugin-os": "^2.2.1",
-		"@tauri-apps/plugin-updater": "^2.7.1",
-		"@tauri-apps/plugin-window-state": "^2.2.2",
-		"@types/three": "^0.172.0",
-		"@vueuse/core": "^11.1.0",
-		"dayjs": "^1.11.10",
-		"deepslate": "0.26.0",
-		"fflate": "0.8.2",
-		"floating-vue": "^5.2.2",
-		"fuse.js": "^6.6.2",
-		"intl-messageformat": "^10.7.7",
-		"monaco-editor": "^0.56.0",
-		"ofetch": "^1.3.4",
-		"overlayscrollbars": "^2.15.1",
-		"pinia": "^3.0.0",
-		"three": "^0.172.0",
-		"vite-svg-loader": "^5.1.0",
-		"vue": "^3.5.13",
-		"vue-i18n": "^10.0.0",
-		"vue-router": "^4.6.0",
-		"vuedraggable": "^4.1.0",
-		"xxhash-wasm": "1.1.0"
-	},
-	"devDependencies": {
-		"@eslint/compat": "^1.1.1",
-		"@formatjs/cli": "^6.2.12",
-		"@modrinth/tooling-config": "workspace:*",
-		"@nuxt/eslint-config": "^0.5.6",
-		"@vitejs/plugin-vue": "^6.0.3",
-		"autoprefixer": "^10.4.19",
-		"eslint": "^9.9.1",
-		"eslint-plugin-turbo": "^2.5.4",
-		"postcss": "^8.4.39",
-		"prettier": "^3.2.5",
-		"sass": "^1.74.1",
-		"tailwindcss": "^3.4.4",
-		"typescript": "^5.5.4",
-		"vite": "^8.0.0",
-		"vite-plugin-vue-devtools": "^8.2.1",
-		"vue-component-type-helpers": "^3.1.8",
-		"vue-tsc": "^2.1.6"
-	},
-	"packageManager": "pnpm@9.4.0",
-	"web-types": "../../web-types.json"
+  "name": "@modrinth/app-frontend",
+  "private": true,
+  "version": "1.0.2-beta11",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vue-tsc --noEmit && vite build",
+    "tsc:check": "vue-tsc --noEmit",
+    "lint": "eslint . && prettier --check .",
+    "fix": "eslint . --fix && prettier --write .",
+    "intl:extract": "formatjs extract \"src/**/*.{vue,ts,tsx,js,jsx,mts,cts,mjs,cjs}\" --ignore \"**/*.d.ts\" --ignore node_modules --out-file src/locales/en-US/index.json --format crowdin --preserve-whitespace",
+    "intl:prune-local": "pnpm -w scripts i18n-icu-contract prune-local --scope apps/app-frontend",
+    "test": "vue-tsc --noEmit && node --test \"src/**/*.test.ts\""
+  },
+  "dependencies": {
+    "@dnd-kit/core": "6.3.1",
+    "@dnd-kit/utilities": "3.2.2",
+    "@dnd-kit/vue": "^0.5.0",
+    "@lobehub/icons-static-svg": "1.94.0",
+    "@modrinth/api-client": "workspace:^",
+    "@modrinth/assets": "workspace:*",
+    "@modrinth/server": "workspace:*",
+    "@modrinth/ui": "workspace:*",
+    "@modrinth/utils": "workspace:*",
+    "@sfirew/minecraft-motd-parser": "^1.1.6",
+    "@tanstack/vue-query": "5.90.7",
+    "@tauri-apps/api": "^2.5.0",
+    "@tauri-apps/plugin-dialog": "^2.2.1",
+    "@tauri-apps/plugin-fs": "^2.4.5",
+    "@tauri-apps/plugin-http": "~2.5.7",
+    "@tauri-apps/plugin-opener": "^2.2.6",
+    "@tauri-apps/plugin-os": "^2.2.1",
+    "@tauri-apps/plugin-updater": "^2.7.1",
+    "@tauri-apps/plugin-window-state": "^2.2.2",
+    "@types/three": "^0.172.0",
+    "@vueuse/core": "^11.1.0",
+    "dayjs": "^1.11.10",
+    "deepslate": "0.26.0",
+    "fflate": "0.8.2",
+    "floating-vue": "^5.2.2",
+    "fuse.js": "^6.6.2",
+    "intl-messageformat": "^10.7.7",
+    "monaco-editor": "^0.56.0",
+    "ofetch": "^1.3.4",
+    "overlayscrollbars": "^2.15.1",
+    "pinia": "^3.0.0",
+    "three": "^0.172.0",
+    "vite-svg-loader": "^5.1.0",
+    "vue": "^3.5.13",
+    "vue-i18n": "^10.0.0",
+    "vue-router": "^4.6.0",
+    "vuedraggable": "^4.1.0",
+    "xxhash-wasm": "1.1.0"
+  },
+  "devDependencies": {
+    "@eslint/compat": "^1.1.1",
+    "@formatjs/cli": "^6.2.12",
+    "@modrinth/tooling-config": "workspace:*",
+    "@nuxt/eslint-config": "^0.5.6",
+    "@vitejs/plugin-vue": "^6.0.3",
+    "autoprefixer": "^10.4.19",
+    "eslint": "^9.9.1",
+    "eslint-plugin-turbo": "^2.5.4",
+    "postcss": "^8.4.39",
+    "prettier": "^3.2.5",
+    "sass": "^1.74.1",
+    "tailwindcss": "^3.4.4",
+    "typescript": "^5.5.4",
+    "vite": "^8.0.0",
+    "vite-plugin-vue-devtools": "^8.2.1",
+    "vue-component-type-helpers": "^3.1.8",
+    "vue-tsc": "^2.1.6"
+  },
+  "packageManager": "pnpm@9.4.0",
+  "web-types": "../../web-types.json"
 }

apps/app-frontend/src/announcements/catalog.ts

@@ -32,6 +32,79 @@ export const ANNOUNCEMENT_CHANGE_TYPES: readonly AnnouncementChangeType[] = [
 ]
 
 export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
+	{
+		id: 'launcher-1.0.2-beta11',
+		version: '1.0.2-beta11',
+		publishedAt: '2026-10-20',
+		title: {
+			'en-US': 'Starlight Launcher 1.0.2-beta11',
+			'zh-CN': 'Starlight Launcher 1.0.2-beta11',
+		},
+		changes: {
+			fixed: [
+				{
+					'en-US':
+						'Filled missing Chinese translations across skin site sign-in, announcements, verification, registration, account settings, downloads and maps, and localized remaining user and Wiki labels.',
+					'zh-CN':
+						'补齐皮肤站登录、公告、验证、注册、账号设置、下载和地图等界面的中文翻译，并修复用户信息与维基权限选项中的英文标签。',
+				},
+				{
+					'en-US':
+						'Renew the saved skin site JWT on launcher startup before loading the user and announcements. Fixed overlapping refresh, sign-in and sign-out requests that could leave the account in an incorrect state.',
+					'zh-CN':
+						'启动启动器时先刷新已保存的皮肤站 JWT，再加载用户与公告；修复刷新、登录和退出请求交错时可能导致的账号状态异常。',
+				},
+				{
+					'en-US':
+						'Announcements now reload after sign-in, show a sign-in hint when signed out, and offer a retry action after a loading failure.',
+					'zh-CN': '公告在登录后自动重新加载，未登录时显示登录提示，加载失败时可直接重试。',
+				},
+			],
+			changed: [
+				{
+					'en-US':
+						'Skin site release publishing now uses chunked uploads and reports synchronization failures explicitly. Localization checks also scan message IDs used in source to catch missing catalog entries.',
+					'zh-CN':
+						'皮肤站自动发布改用分片上传，同步失败会明确报错；国际化检查新增源码词条扫描，防止再次遗漏语言包内容。',
+				},
+			],
+		},
+		notes: {
+			'en-US':
+				'If the previously saved JWT has already expired, sign in again once to restore the session.',
+			'zh-CN': '如果此前保存的 JWT 已经过期，需要重新登录一次以恢复会话。',
+		},
+	},
+	{
+		id: 'launcher-1.0.2-beta10',
+		version: '1.0.2-beta10',
+		publishedAt: '2026-10-20',
+		title: {
+			'en-US': 'Starlight Launcher 1.0.2-beta10',
+			'zh-CN': 'Starlight Launcher 1.0.2-beta10',
+		},
+		changes: {
+			security: [
+				{
+					'en-US':
+						'Backported the upstream Axolotl modpack path traversal fix to prevent malicious modpacks from writing files outside the intended installation directory.',
+					'zh-CN':
+						'合入上游 Axolotl 整合包路径穿越安全补丁，阻止恶意整合包向安装目录之外写入文件。',
+				},
+				{
+					'en-US':
+						'Strengthened path validation for Modrinth and CurseForge modpacks, server installations, cached files and modpack uninstall cleanup, including unsafe Windows path aliases.',
+					'zh-CN':
+						'加强 Modrinth 与 CurseForge 整合包、服务端安装、缓存文件及整合包卸载清理的路径校验，拦截不安全的 Windows 路径别名。',
+				},
+			],
+		},
+		notes: {
+			'en-US':
+				'Users of earlier versions should update promptly, especially before installing modpacks from untrusted sources.',
+			'zh-CN': '建议旧版本用户尽快更新，尤其是在安装来源不明的整合包之前。',
+		},
+	},
 	{
 		id: 'launcher-1.0.2-beta9',
 		version: '1.0.2-beta9',
@@ -43,21 +116,27 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 		changes: {
 			added: [
 				{
-					'en-US': 'Finished the skin site admin console: system overview, announcements, user and player management, review paper editor, mod upload with batch operations, chat room management with real-time voice, servers, audit log, resource downloads, donations and launcher releases.',
-					'zh-CN': '补全皮肤站管理台：系统概览、公告、用户与玩家管理、审核试卷编辑器、Mod 上传与批量操作、聊天室房间管理与实时语音、服务器、审计日志、资源下载、捐赠与启动器版本管理。',
+					'en-US':
+						'Finished the skin site admin console: system overview, announcements, user and player management, review paper editor, mod upload with batch operations, chat room management with real-time voice, servers, audit log, resource downloads, donations and launcher releases.',
+					'zh-CN':
+						'补全皮肤站管理台：系统概览、公告、用户与玩家管理、审核试卷编辑器、Mod 上传与批量操作、聊天室房间管理与实时语音、服务器、审计日志、资源下载、捐赠与启动器版本管理。',
 				},
 				{
-					'en-US': 'Added Wiki management to the admin console, including a MediaWiki migration center that imports pages from an existing wiki and lets you review, publish or roll back the result.',
-					'zh-CN': '管理台新增维基管理，包含 MediaWiki 迁移中心：可从现有 Wiki 导入页面，并对结果进行审核、发布或回滚。',
+					'en-US':
+						'Added Wiki management to the admin console, including a MediaWiki migration center that imports pages from an existing wiki and lets you review, publish or roll back the result.',
+					'zh-CN':
+						'管理台新增维基管理，包含 MediaWiki 迁移中心：可从现有 Wiki 导入页面，并对结果进行审核、发布或回滚。',
 				},
 				{
-					'en-US': 'Added a read-only Wiki reader in the launcher: render pages, follow links between entries, and keep a back stack while browsing.',
+					'en-US':
+						'Added a read-only Wiki reader in the launcher: render pages, follow links between entries, and keep a back stack while browsing.',
 					'zh-CN': '启动器新增维基阅读页：渲染词条正文、跟随词条链接跳转，并在浏览时保留返回栈。',
 				},
 			],
 			changed: [
 				{
-					'en-US': 'Releases are now published to the skin site automatically when a tag is pushed, so the download page stays in sync without a manual upload.',
+					'en-US':
+						'Releases are now published to the skin site automatically when a tag is pushed, so the download page stays in sync without a manual upload.',
 					'zh-CN': '推送 tag 发版时会自动把版本同步到皮肤站，下载页无需再手动上传即可保持同步。',
 				},
 				{
@@ -88,27 +167,35 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 		changes: {
 			added: [
 				{
-					'en-US': 'The skin site is now fully native inside the launcher: sign-in, registration, password reset, account settings, players, downloads, world map and player review all run through the launcher UI instead of an embedded web page.',
-					'zh-CN': '皮肤站全面改为启动器原生界面：登录、注册、找回密码、账号设置、角色管理、资源下载、服务器地图与玩家审核均不再依赖内嵌网页。',
+					'en-US':
+						'The skin site is now fully native inside the launcher: sign-in, registration, password reset, account settings, players, downloads, world map and player review all run through the launcher UI instead of an embedded web page.',
+					'zh-CN':
+						'皮肤站全面改为启动器原生界面：登录、注册、找回密码、账号设置、角色管理、资源下载、服务器地图与玩家审核均不再依赖内嵌网页。',
 				},
 				{
-					'en-US': 'Added a bug tracker: browse and filter issues, read details and comments, post replies, create new issues and follow notifications.',
-					'zh-CN': '新增问题追踪：可浏览与筛选问题、查看详情与评论、发表回复、提交新问题并接收通知。',
+					'en-US':
+						'Added a bug tracker: browse and filter issues, read details and comments, post replies, create new issues and follow notifications.',
+					'zh-CN':
+						'新增问题追踪：可浏览与筛选问题、查看详情与评论、发表回复、提交新问题并接收通知。',
 				},
 				{
-					'en-US': 'Added an admin console with a permission gate: system overview, announcements, users, players, player review and launcher releases.',
-					'zh-CN': '新增管理控制台（带权限校验）：系统概览、公告管理、用户管理、玩家管理、玩家审核与启动器版本管理。',
+					'en-US':
+						'Added an admin console with a permission gate: system overview, announcements, users, players, player review and launcher releases.',
+					'zh-CN':
+						'新增管理控制台（带权限校验）：系统概览、公告管理、用户管理、玩家管理、玩家审核与启动器版本管理。',
 				},
 			],
 			changed: [
 				{
-					'en-US': 'Hosted modpack downloads now go through the dedicated download server, keeping large downloads off the main API host.',
+					'en-US':
+						'Hosted modpack downloads now go through the dedicated download server, keeping large downloads off the main API host.',
 					'zh-CN': '整合包下载改为走独立的下载服务器，避免大文件下载挤占主 API 服务。',
 				},
 			],
 			fixed: [
 				{
-					'en-US': 'LogShare now collects logs with a lightweight reader, fixing crash log uploads that previously failed.',
+					'en-US':
+						'LogShare now collects logs with a lightweight reader, fixing crash log uploads that previously failed.',
 					'zh-CN': 'LogShare 改用轻量日志收集，修复崩溃日志上传失败的问题。',
 				},
 				{
@@ -137,12 +224,16 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 					'zh-CN': '修复实时日志积压导致控制台卡顿的问题。',
 				},
 				{
-					'en-US': 'The update channel now defaults to the build type: installing a Beta build starts on the Beta channel instead of Release.',
-					'zh-CN': '更新通道默认值改为跟随安装包版本：安装 Beta 版后默认使用 Beta 通道，不再回落为 Release。',
+					'en-US':
+						'The update channel now defaults to the build type: installing a Beta build starts on the Beta channel instead of Release.',
+					'zh-CN':
+						'更新通道默认值改为跟随安装包版本：安装 Beta 版后默认使用 Beta 通道，不再回落为 Release。',
 				},
 				{
-					'en-US': 'On Linux, the default game directory for StarLight instances no longer points at the system install path (e.g. /usr/bin); it falls back to the home directory.',
-					'zh-CN': 'Linux 上 StarLight 实例的默认游戏目录不再指向系统安装路径（如 /usr/bin），改为回退到用户主目录。',
+					'en-US':
+						'On Linux, the default game directory for StarLight instances no longer points at the system install path (e.g. /usr/bin); it falls back to the home directory.',
+					'zh-CN':
+						'Linux 上 StarLight 实例的默认游戏目录不再指向系统安装路径（如 /usr/bin），改为回退到用户主目录。',
 				},
 			],
 		},
@@ -158,15 +249,19 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 		changes: {
 			added: [
 				{
-					'en-US': 'Added keyboard shortcut settings: enable and rebind navigation and quick-scrolling shortcuts.',
+					'en-US':
+						'Added keyboard shortcut settings: enable and rebind navigation and quick-scrolling shortcuts.',
 					'zh-CN': '新增键盘快捷键设置：可启用并自定义导航与快速滚动快捷键。',
 				},
 				{
-					'en-US': 'Added crash log sharing and AI analysis: share crash diagnostics to LogShare for a structured summary and optional AI analysis, with a rebuilt crash window that browses log files and streams the analysis.',
-					'zh-CN': '新增崩溃日志分享与 AI 分析：可将崩溃诊断分享到 LogShare 获取结构化摘要与 AI 分析；崩溃窗口重做为双栏布局，可浏览日志文件并流式查看分析结果。',
+					'en-US':
+						'Added crash log sharing and AI analysis: share crash diagnostics to LogShare for a structured summary and optional AI analysis, with a rebuilt crash window that browses log files and streams the analysis.',
+					'zh-CN':
+						'新增崩溃日志分享与 AI 分析：可将崩溃诊断分享到 LogShare 获取结构化摘要与 AI 分析；崩溃窗口重做为双栏布局，可浏览日志文件并流式查看分析结果。',
 				},
 				{
-					'en-US': 'Crash logs now also collect JVM crash reports (hs_err_pid*.log) and launcher logs.',
+					'en-US':
+						'Crash logs now also collect JVM crash reports (hs_err_pid*.log) and launcher logs.',
 					'zh-CN': '崩溃日志现在也会收集 JVM 崩溃报告（hs_err_pid*.log）与启动器日志。',
 				},
 				{
@@ -207,12 +302,16 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 		changes: {
 			added: [
 				{
-					'en-US': 'Added a remote announcements center: a bell in the top bar opens a panel listing launcher announcements fetched from the Starlight skin site.',
-					'zh-CN': '新增远程公告中心：顶栏的铃铛可打开公告面板，展示从 Starlight 皮肤站拉取的启动器公告。',
+					'en-US':
+						'Added a remote announcements center: a bell in the top bar opens a panel listing launcher announcements fetched from the Starlight skin site.',
+					'zh-CN':
+						'新增远程公告中心：顶栏的铃铛可打开公告面板，展示从 Starlight 皮肤站拉取的启动器公告。',
 				},
 				{
-					'en-US': 'Added a custom Minecraft window title option: set a global toggle and default title, and let each instance override it. The game window is renamed on Windows.',
-					'zh-CN': '新增自定义 Minecraft 窗口标题：可设置全局开关与默认标题，并允许各实例单独覆盖；Windows 下会重命名游戏窗口。',
+					'en-US':
+						'Added a custom Minecraft window title option: set a global toggle and default title, and let each instance override it. The game window is renamed on Windows.',
+					'zh-CN':
+						'新增自定义 Minecraft 窗口标题：可设置全局开关与默认标题，并允许各实例单独覆盖；Windows 下会重命名游戏窗口。',
 				},
 			],
 			fixed: [
@@ -234,24 +333,31 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 		changes: {
 			added: [
 				{
-					'en-US': 'Added armor and armor-trim rendering to the skin preview, letting you try on armor pieces and trim patterns directly in the skin editor.',
-					'zh-CN': '皮肤预览新增盔甲与盔甲纹饰渲染，可在皮肤编辑器内直接试穿各部位盔甲并调整纹饰图案。',
+					'en-US':
+						'Added armor and armor-trim rendering to the skin preview, letting you try on armor pieces and trim patterns directly in the skin editor.',
+					'zh-CN':
+						'皮肤预览新增盔甲与盔甲纹饰渲染，可在皮肤编辑器内直接试穿各部位盔甲并调整纹饰图案。',
 				},
 				{
-					'en-US': 'Armor preview selections in the skin editor are now saved locally, so they persist across sessions.',
+					'en-US':
+						'Armor preview selections in the skin editor are now saved locally, so they persist across sessions.',
 					'zh-CN': '皮肤编辑器中的盔甲预览选择现在会保存在本地，跨会话保留。',
 				},
 			],
 			changed: [
 				{
-					'en-US': 'Improved download scheduling to reduce concurrency automatically when tasks are waiting for capacity, making large Minecraft installations more reliable on constrained connections.',
-					'zh-CN': '优化下载任务调度：任务因容量不足排队时会自动降低并发，提升大型 Minecraft 版本在受限网络环境下的安装稳定性。',
+					'en-US':
+						'Improved download scheduling to reduce concurrency automatically when tasks are waiting for capacity, making large Minecraft installations more reliable on constrained connections.',
+					'zh-CN':
+						'优化下载任务调度：任务因容量不足排队时会自动降低并发，提升大型 Minecraft 版本在受限网络环境下的安装稳定性。',
 				},
 			],
 			fixed: [
 				{
-					'en-US': 'Fixed downloads timing out while waiting for internal connection capacity, which could cause Minecraft installations to fail even when the network was available.',
-					'zh-CN': '修复下载任务等待内部连接容量时过早超时，导致网络正常的情况下 Minecraft 安装仍可能失败的问题。',
+					'en-US':
+						'Fixed downloads timing out while waiting for internal connection capacity, which could cause Minecraft installations to fail even when the network was available.',
+					'zh-CN':
+						'修复下载任务等待内部连接容量时过早超时，导致网络正常的情况下 Minecraft 安装仍可能失败的问题。',
 				},
 				{
 					'en-US': 'Fixed instance group changes not saving for some instances.',
@@ -271,8 +377,10 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 		changes: {
 			fixed: [
 				{
-					'en-US': 'Fixed the anniversary celebration banner not showing above the window title bar, and made the banner background semi-transparent so the content behind it stays visible.',
-					'zh-CN': '修复周年庆庆祝横幅被窗口标题栏遮挡、无法显示的问题，并将横幅背景改为半透明，避免遮住下方内容。',
+					'en-US':
+						'Fixed the anniversary celebration banner not showing above the window title bar, and made the banner background semi-transparent so the content behind it stays visible.',
+					'zh-CN':
+						'修复周年庆庆祝横幅被窗口标题栏遮挡、无法显示的问题，并将横幅背景改为半透明，避免遮住下方内容。',
 				},
 			],
 		},
@@ -288,8 +396,10 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 		changes: {
 			fixed: [
 				{
-					'en-US': 'Fixed the launcher failing to start with "no such table: synced_pack_catalog": the cross-instance sync migration was missing the synced_pack_catalog and synced_pack_instances tables.',
-					'zh-CN': '修复启动器因 "no such table: synced_pack_catalog" 无法启动的问题：跨实例同步迁移遗漏了 synced_pack_catalog 与 synced_pack_instances 两张表。',
+					'en-US':
+						'Fixed the launcher failing to start with "no such table: synced_pack_catalog": the cross-instance sync migration was missing the synced_pack_catalog and synced_pack_instances tables.',
+					'zh-CN':
+						'修复启动器因 "no such table: synced_pack_catalog" 无法启动的问题：跨实例同步迁移遗漏了 synced_pack_catalog 与 synced_pack_instances 两张表。',
 				},
 			],
 		},
@@ -305,15 +415,20 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 		changes: {
 			added: [
 				{
-					'en-US': 'Cross-instance sync: share game options, resource packs, data packs, multiplayer servers, command history, and creative hotbars across instances, with per-option toggles and a fine-grained game-settings editor.',
-					'zh-CN': '跨实例同步：可跨实例共享游戏选项、资源包、数据包、多人服务器、命令历史与创造模式快捷栏，支持逐项开关与精细的游戏设置编辑器。',
+					'en-US':
+						'Cross-instance sync: share game options, resource packs, data packs, multiplayer servers, command history, and creative hotbars across instances, with per-option toggles and a fine-grained game-settings editor.',
+					'zh-CN':
+						'跨实例同步：可跨实例共享游戏选项、资源包、数据包、多人服务器、命令历史与创造模式快捷栏，支持逐项开关与精细的游戏设置编辑器。',
 				},
 				{
-					'en-US': 'Starlight turns 12! On October 4th every year the launcher now shows a celebration banner and falling confetti. The anniversary number is computed from 2014.',
-					'zh-CN': 'Starlight 十二周年！每年 10 月 4 日，启动器会显示庆祝横幅与飘落的彩带、蛋糕，周年数按 2014 年起算。',
+					'en-US':
+						'Starlight turns 12! On October 4th every year the launcher now shows a celebration banner and falling confetti. The anniversary number is computed from 2014.',
+					'zh-CN':
+						'Starlight 十二周年！每年 10 月 4 日，启动器会显示庆祝横幅与飘落的彩带、蛋糕，周年数按 2014 年起算。',
 				},
 				{
-					'en-US': 'Added a developer feature flag to preview the anniversary celebration at any time.',
+					'en-US':
+						'Added a developer feature flag to preview the anniversary celebration at any time.',
 					'zh-CN': '新增开发者功能开关，可随时预览周年庆效果。',
 				},
 			],
@@ -330,8 +445,10 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 		changes: {
 			added: [
 				{
-					'en-US': 'Instance backups: create deduplicated snapshots of an instance while it is closed, preview and restore them, exclude specific files or folders, and move the backup repository.',
-					'zh-CN': '实例备份：在实例关闭时创建去重快照，可预览与恢复，支持排除指定文件或文件夹，并可迁移备份仓库。',
+					'en-US':
+						'Instance backups: create deduplicated snapshots of an instance while it is closed, preview and restore them, exclude specific files or folders, and move the backup repository.',
+					'zh-CN':
+						'实例备份：在实例关闭时创建去重快照，可预览与恢复，支持排除指定文件或文件夹，并可迁移备份仓库。',
 				},
 				{
 					'en-US': "Customize the launcher's UI font and monospace font in appearance settings.",
@@ -340,12 +457,16 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 			],
 			fixed: [
 				{
-					'en-US': 'Fixed beta builds not auto-updating from beta9 to beta10 (prerelease versions were compared as text instead of by number).',
-					'zh-CN': '修复 beta 版本无法从 beta9 自动更新到 beta10 的问题（预发布版本此前按文本而非数字比较）。',
+					'en-US':
+						'Fixed beta builds not auto-updating from beta9 to beta10 (prerelease versions were compared as text instead of by number).',
+					'zh-CN':
+						'修复 beta 版本无法从 beta9 自动更新到 beta10 的问题（预发布版本此前按文本而非数字比较）。',
 				},
 				{
-					'en-US': 'Fixed a cross-crate visibility issue that prevented the launcher from compiling with the ignore-SSL-errors option.',
-					'zh-CN': '修复因跨 crate 可见性导致的编译失败，此前启用“忽略 SSL 证书错误”选项时无法编译。',
+					'en-US':
+						'Fixed a cross-crate visibility issue that prevented the launcher from compiling with the ignore-SSL-errors option.',
+					'zh-CN':
+						'修复因跨 crate 可见性导致的编译失败，此前启用“忽略 SSL 证书错误”选项时无法编译。',
 				},
 			],
 		},
@@ -361,11 +482,13 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 		changes: {
 			added: [
 				{
-					'en-US': 'Reworked the instance-page tour into four steps covering content, files, worlds, and logs.',
+					'en-US':
+						'Reworked the instance-page tour into four steps covering content, files, worlds, and logs.',
 					'zh-CN': '重做实例页导览，分为内容、文件、世界、日志四步。',
 				},
 				{
-					'en-US': 'When the install location is a drive root, the installer now creates a Starlight subfolder automatically.',
+					'en-US':
+						'When the install location is a drive root, the installer now creates a Starlight subfolder automatically.',
 					'zh-CN': '安装位置选到盘符根目录时，安装器会自动创建 Starlight 子文件夹。',
 				},
 			],
@@ -379,11 +502,13 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 					'zh-CN': '修复开发者功能开关无法保存的问题。',
 				},
 				{
-					'en-US': 'Fixed instance group edits not saving for instances without an applied content set.',
+					'en-US':
+						'Fixed instance group edits not saving for instances without an applied content set.',
 					'zh-CN': '修复没有应用内容集的实例无法保存分组修改的问题。',
 				},
 				{
-					'en-US': 'Fixed the launcher crashing on startup when feature flags were out of sync between the frontend and backend.',
+					'en-US':
+						'Fixed the launcher crashing on startup when feature flags were out of sync between the frontend and backend.',
 					'zh-CN': '修复前后端功能开关不同步导致启动器启动崩溃的问题。',
 				},
 				{
@@ -500,12 +625,10 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 				{
 					'en-US':
 						'Fixed the onboarding tour skipping steps automatically, getting stuck, or not navigating between steps; the tour bubble no longer covers the left navigation bar.',
-					'zh-CN':
-						'修复新手导览自动跳过、卡住或不跳转的问题；导览气泡不再遮挡左侧导航栏。',
+					'zh-CN': '修复新手导览自动跳过、卡住或不跳转的问题；导览气泡不再遮挡左侧导航栏。',
 				},
 				{
-					'en-US':
-						'Fixed the onboarding tour target on the minimal home layout.',
+					'en-US': 'Fixed the onboarding tour target on the minimal home layout.',
 					'zh-CN': '修复精简主页下导览目标找不到的问题。',
 				},
 			],
@@ -536,13 +659,11 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 			],
 			fixed: [
 				{
-					'en-US':
-						'Fixed the developer feature flags page rendering blank.',
+					'en-US': 'Fixed the developer feature flags page rendering blank.',
 					'zh-CN': '修复开发者“功能开关”页面空白的问题。',
 				},
 				{
-					'en-US':
-						'Fixed a build error that prevented the launcher from compiling.',
+					'en-US': 'Fixed a build error that prevented the launcher from compiling.',
 					'zh-CN': '修复导致启动器无法编译的构建错误。',
 				},
 			],
@@ -559,8 +680,7 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 		changes: {
 			fixed: [
 				{
-					'en-US':
-						'Fixed a build error in 1.0.1-beta3 that prevented the launcher from compiling.',
+					'en-US': 'Fixed a build error in 1.0.1-beta3 that prevented the launcher from compiling.',
 					'zh-CN': '修复 1.0.1-beta3 中导致启动器无法编译的构建错误。',
 				},
 			],
@@ -619,8 +739,7 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 			],
 			fixed: [
 				{
-					'en-US':
-						'Improved the reliability of live logs and database switching.',
+					'en-US': 'Improved the reliability of live logs and database switching.',
 					'zh-CN': '提高实时日志与数据库切换的可靠性。',
 				},
 			],
@@ -712,15 +831,13 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 					'zh-CN': '修复更新清单的下载地址与发布顺序，更新检查现在可以成功。',
 				},
 				{
-					'en-US':
-						'Updated the signing key pair used to sign update packages.',
+					'en-US': 'Updated the signing key pair used to sign update packages.',
 					'zh-CN': '更新了用于签名更新包的密钥对。',
 				},
 			],
 			changed: [
 				{
-					'en-US':
-						'Removed upstream release announcements prior to 1.0.0-beta1.',
+					'en-US': 'Removed upstream release announcements prior to 1.0.0-beta1.',
 					'zh-CN': '移除了 1.0.0-beta1 之前的上游版本公告。',
 				},
 			],
@@ -737,13 +854,11 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 		changes: {
 			added: [
 				{
-					'en-US':
-						'Installing a modpack now lets you choose the game directory.',
+					'en-US': 'Installing a modpack now lets you choose the game directory.',
 					'zh-CN': '一键安装整合包时现在可以选择游戏目录。',
 				},
 				{
-					'en-US':
-						'Approved (hosted) modpack sync and StarLight instance mode were added.',
+					'en-US': 'Approved (hosted) modpack sync and StarLight instance mode were added.',
 					'zh-CN': '新增获批整合包同步与 StarLight 实例模式。',
 				},
 				{
@@ -754,8 +869,7 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 			],
 			changed: [
 				{
-					'en-US':
-						'The about page now plays a looping wither victory animation.',
+					'en-US': 'The about page now plays a looping wither victory animation.',
 					'zh-CN': '关于页现在会播放循环的凋灵胜利动画。',
 				},
 			],
@@ -767,8 +881,7 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 						'修复从 .minecraft 文件夹导入实例的多项问题（内容复制、版本隔离、符号链接、加载器版本识别等）。',
 				},
 				{
-					'en-US':
-						'Fixed the instance log view stopping updates and overlapping log lines.',
+					'en-US': 'Fixed the instance log view stopping updates and overlapping log lines.',
 					'zh-CN': '修复实例日志窗口停更与日志行重叠的问题。',
 				},
 				{
@@ -787,8 +900,7 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 					'zh-CN': '修复未登录皮肤站时启动卡住且不再弹出玩家选择的问题。',
 				},
 				{
-					'en-US':
-						'Fixed various skin site login, player list sync, and display issues.',
+					'en-US': 'Fixed various skin site login, player list sync, and display issues.',
 					'zh-CN': '修复皮肤站登录、玩家列表同步及若干显示问题。',
 				},
 			],
@@ -807,7 +919,8 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 				{
 					'en-US':
 						'The launcher has been rebranded from Axolotl Launcher to Starlight Launcher, with a new icon and a refreshed about page.',
-					'zh-CN': '启动器已从 Axolotl Launcher 更名为 Starlight Launcher，并更换了全新图标与关于页。',
+					'zh-CN':
+						'启动器已从 Axolotl Launcher 更名为 Starlight Launcher，并更换了全新图标与关于页。',
 				},
 				{
 					'en-US':
@@ -821,7 +934,8 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 			],
 			added: [
 				{
-					'en-US': 'A "Starlight" entry was added to the sidebar, which embeds the StarLight skin site.',
+					'en-US':
+						'A "Starlight" entry was added to the sidebar, which embeds the StarLight skin site.',
 					'zh-CN': '侧边栏新增「斯达莱特」入口，内嵌 StarLight 皮肤站。',
 				},
 				{
@@ -840,10 +954,12 @@ export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
 				{
 					'en-US':
 						'The hard-coded Starlight official server was removed from "Pinned servers"; only servers you favorite yourself are shown now.',
-					'zh-CN': '移除了「固定的服务器」中写死的 Starlight 官方服务器，现在只显示你自己收藏的服务器。',
+					'zh-CN':
+						'移除了「固定的服务器」中写死的 Starlight 官方服务器，现在只显示你自己收藏的服务器。',
 				},
 				{
-					'en-US': 'The swimming axolotl animation on the about page was replaced with a static nether star.',
+					'en-US':
+						'The swimming axolotl animation on the about page was replaced with a static nether star.',
 					'zh-CN': '关于页中游动的美西螈动画已替换为静止的下界之星。',
 				},
 			],

apps/app-frontend/src/components/ui/skin-site/ChatUserPicker.vue

@@ -70,6 +70,13 @@ const messages = defineMessages({
 		defaultMessage: 'Selected',
 	},
 	idLabel: { id: 'app.skin-site.chat.user-picker.id', defaultMessage: 'ID' },
+	emailLabel: { id: 'app.skin-site.chat.user-picker.email', defaultMessage: 'Email' },
+	registeredLabel: {
+		id: 'app.skin-site.chat.user-picker.registered',
+		defaultMessage: 'Registered',
+	},
+	bannedStatus: { id: 'app.skin-site.chat.user-picker.banned-status', defaultMessage: 'Banned' },
+	activeStatus: { id: 'app.skin-site.chat.user-picker.active-status', defaultMessage: 'Active' },
 })
 
 const keyword = ref('')
@@ -82,9 +89,7 @@ let timer: ReturnType<typeof setTimeout> | undefined
 let requestId = 0
 
 const currentLabel = computed(() => props.label ?? formatMessage(messages.label))
-const currentPlaceholder = computed(
-	() => props.placeholder ?? formatMessage(messages.placeholder),
-)
+const currentPlaceholder = computed(() => props.placeholder ?? formatMessage(messages.placeholder))
 
 watch([keyword, searchMode], () => {
 	clearTimeout(timer)
@@ -174,13 +179,19 @@ function formatTime(ts: number): string {
 					v-model.trim="keyword"
 					type="text"
 					maxlength="100"
-					:placeholder="searchMode === 'player' ? formatMessage(messages.playerHint) : currentPlaceholder"
+					:placeholder="
+						searchMode === 'player' ? formatMessage(messages.playerHint) : currentPlaceholder
+					"
 					class="min-w-0 flex-1 rounded-lg border border-solid border-surface-5 bg-bg-raised px-3 py-1.5 text-xs text-contrast outline-none focus:border-brand"
 					autocomplete="off"
 				/>
 			</div>
 			<span class="text-[11px] text-secondary">
-				{{ searchMode === 'player' ? formatMessage(messages.playerHint) : formatMessage(messages.hint) }}
+				{{
+					searchMode === 'player'
+						? formatMessage(messages.playerHint)
+						: formatMessage(messages.hint)
+				}}
 			</span>
 		</div>
 
@@ -201,7 +212,9 @@ function formatTime(ts: number): string {
 				@click="preview = user"
 			>
 				<span class="flex min-w-0 items-center gap-2">
-					<span class="grid size-8 shrink-0 place-items-center rounded-lg bg-brand/15 text-xs font-bold text-brand">
+					<span
+						class="grid size-8 shrink-0 place-items-center rounded-lg bg-brand/15 text-xs font-bold text-brand"
+					>
 						{{ user.username.slice(0, 1).toUpperCase() }}
 					</span>
 					<span class="min-w-0">
@@ -244,7 +257,7 @@ function formatTime(ts: number): string {
 					class="rounded-full px-2 py-0.5 text-[10px] font-semibold"
 					:class="preview.banned ? 'bg-red text-contrast' : 'bg-green text-contrast'"
 				>
-					{{ preview.banned ? 'Banned' : 'OK' }}
+					{{ formatMessage(preview.banned ? messages.bannedStatus : messages.activeStatus) }}
 				</span>
 			</div>
 			<div class="grid gap-2 text-[11px] sm:grid-cols-2">
@@ -253,7 +266,7 @@ function formatTime(ts: number): string {
 					<span class="block break-all font-mono text-contrast">{{ preview.uuid }}</span>
 				</div>
 				<div>
-					<span class="block text-secondary">Email</span>
+					<span class="block text-secondary">{{ formatMessage(messages.emailLabel) }}</span>
 					<span class="block break-all text-contrast">{{ preview.email }}</span>
 				</div>
 				<div>
@@ -261,7 +274,7 @@ function formatTime(ts: number): string {
 					<span class="block text-contrast">{{ preview.qq ?? '—' }}</span>
 				</div>
 				<div>
-					<span class="block text-secondary">Registered</span>
+					<span class="block text-secondary">{{ formatMessage(messages.registeredLabel) }}</span>
 					<span class="block text-contrast">{{ formatTime(preview.registerTime) }}</span>
 				</div>
 			</div>
@@ -283,7 +296,11 @@ function formatTime(ts: number): string {
 				:disabled="Boolean(unavailableReason(preview))"
 				@click="selectPreview"
 			>
-				{{ model?.uuid === preview.uuid ? formatMessage(messages.selected) : formatMessage(messages.select) }}
+				{{
+					model?.uuid === preview.uuid
+						? formatMessage(messages.selected)
+						: formatMessage(messages.select)
+				}}
 			</button>
 		</section>
 	</div>

apps/app-frontend/src/components/ui/skin-site/SkinSiteAnnouncements.test.ts

@@ -0,0 +1,142 @@
+import assert from 'node:assert/strict'
+import { readFileSync } from 'node:fs'
+import { createRequire, registerHooks, stripTypeScriptTypes } from 'node:module'
+import test from 'node:test'
+
+import { createRenderer, nextTick, ref } from 'vue'
+
+const testSession = {
+	skinSiteStatus: ref('checking'),
+	skinSiteUser: ref<{ uuid: string } | null>(null),
+}
+const testGlobal = globalThis as unknown as {
+	skinSiteAnnouncementSession: typeof testSession
+	skinSiteAnnouncementFetch: () => Promise<unknown>
+}
+testGlobal.skinSiteAnnouncementSession = testSession
+const require = createRequire(import.meta.url)
+const { parse, compileScript } = require('vue/compiler-sfc')
+const componentUrl = new URL('./SkinSiteAnnouncements.vue', import.meta.url).href
+const stubs: Record<string, string> = {
+	'@modrinth/assets': 'export const SpinnerIcon={}',
+	'@modrinth/ui':
+		'export const commonMessages={retryButton:{defaultMessage:"Retry"}}; export const defineMessages=x=>x; export const useVIntl=()=>({formatMessage:x=>x.defaultMessage})',
+	'@/helpers/skin-site-api':
+		'export const skinSiteAnnouncements=()=>globalThis.skinSiteAnnouncementFetch()',
+	'@/composables/skin-site-session':
+		'export const {skinSiteStatus,skinSiteUser}=globalThis.skinSiteAnnouncementSession; export const reloadSkinSiteSession=async()=>{}',
+}
+const hooks = registerHooks({
+	resolve(specifier, context, nextResolve) {
+		if (specifier in stubs)
+			return {
+				url: `data:text/javascript,${encodeURIComponent(stubs[specifier])}`,
+				shortCircuit: true,
+			}
+		return nextResolve(specifier, context)
+	},
+	load(url, context, nextLoad) {
+		if (url !== componentUrl) return nextLoad(url, context)
+		const { descriptor } = parse(readFileSync(new URL(url), 'utf8'))
+		return {
+			format: 'module',
+			source: stripTypeScriptTypes(
+				compileScript(descriptor, { id: 'skin-announcement-test' }).content,
+			),
+			shortCircuit: true,
+		}
+	},
+})
+const { default: Announcements } = await import(componentUrl)
+hooks.deregister()
+Announcements.render = () => null
+
+type Node = Record<string, unknown>
+const renderer = createRenderer<Node, Node>({
+	createElement: () => ({}),
+	createText: () => ({}),
+	createComment: () => ({}),
+	insert() {},
+	remove() {},
+	setText() {},
+	setElementText() {},
+	patchProp() {},
+	parentNode: () => null,
+	nextSibling: () => null,
+})
+const flush = async () => {
+	await new Promise((resolve) => setImmediate(resolve))
+	await nextTick()
+}
+type State = {
+	announcements: Array<{ id: number }>
+	loading: boolean
+	failed: boolean
+	load: () => Promise<void>
+}
+let requests = 0
+function mount(t: test.TestContext) {
+	const app = renderer.createApp(Announcements)
+	const instance = app.mount({})
+	t.after(() => app.unmount())
+	return instance.$.setupState as State
+}
+test.beforeEach(() => {
+	testSession.skinSiteStatus.value = 'checking'
+	testSession.skinSiteUser.value = null
+	requests = 0
+	testGlobal.skinSiteAnnouncementFetch = async () => {
+		requests++
+		return { success: true, payload: [{ id: 1, title: '公告', updateAt: 1, star: false }] }
+	}
+})
+
+test('announcements wait for startup renewal and reload when sign-in finishes', async (t) => {
+	const state = mount(t)
+	await flush()
+	assert.equal(requests, 0)
+	assert.equal(state.loading, true)
+	testSession.skinSiteUser.value = { uuid: 'owner' }
+	testSession.skinSiteStatus.value = 'signed-in'
+	await flush()
+	assert.equal(requests, 1)
+	assert.equal(state.announcements.length, 1)
+})
+
+test('signed-out users do not request protected announcements or see a load failure', async (t) => {
+	testSession.skinSiteStatus.value = 'signed-out'
+	const state = mount(t)
+	await flush()
+	assert.equal(requests, 0)
+	assert.equal(state.loading, false)
+	assert.equal(state.failed, false)
+})
+
+test('signing out clears announcements and ignores an old in-flight response', async (t) => {
+	testSession.skinSiteStatus.value = 'signed-in'
+	let finish!: (value: unknown) => void
+	testGlobal.skinSiteAnnouncementFetch = () =>
+		new Promise((resolve) => {
+			finish = resolve
+		})
+	const state = mount(t)
+	await flush()
+	testSession.skinSiteStatus.value = 'signed-out'
+	await flush()
+	finish({ success: true, payload: [{ id: 2 }] })
+	await flush()
+	assert.deepEqual(state.announcements, [])
+	assert.equal(state.failed, false)
+})
+
+test('a failed announcement request can be retried', async (t) => {
+	testSession.skinSiteStatus.value = 'signed-in'
+	testGlobal.skinSiteAnnouncementFetch = async () => ({ success: false })
+	const state = mount(t)
+	await flush()
+	assert.equal(state.failed, true)
+	testGlobal.skinSiteAnnouncementFetch = async () => ({ success: true, payload: [{ id: 3 }] })
+	await state.load()
+	assert.equal(state.failed, false)
+	assert.equal(state.announcements[0].id, 3)
+})

apps/app-frontend/src/components/ui/skin-site/SkinSiteAnnouncements.vue

@@ -1,8 +1,13 @@
 <script setup lang="ts">
 import { SpinnerIcon } from '@modrinth/assets'
-import { defineMessages, useVIntl } from '@modrinth/ui'
-import { onMounted, ref } from 'vue'
+import { commonMessages, defineMessages, useVIntl } from '@modrinth/ui'
+import { onUnmounted, ref, watch } from 'vue'
 
+import {
+	reloadSkinSiteSession,
+	skinSiteStatus,
+	skinSiteUser,
+} from '@/composables/skin-site-session'
 import { type SkinSiteAnnouncement, skinSiteAnnouncements } from '@/helpers/skin-site-api'
 
 const { formatMessage } = useVIntl()
@@ -18,11 +23,16 @@ const messages = defineMessages({
 		id: 'app.skin-site.home.announcements.failed',
 		defaultMessage: 'Could not load announcements.',
 	},
+	signedOut: {
+		id: 'app.skin-site.home.announcements.signed-out',
+		defaultMessage: 'Sign in to view announcements.',
+	},
 })
 
 const announcements = ref<SkinSiteAnnouncement[]>([])
 const loading = ref(true)
 const failed = ref(false)
+let requestId = 0
 
 function formatDate(ts: number): string {
 	try {
@@ -32,9 +42,16 @@ function formatDate(ts: number): string {
 	}
 }
 
-onMounted(async () => {
+async function load() {
+	const currentRequest = ++requestId
+	announcements.value = []
+	failed.value = skinSiteStatus.value === 'error'
+	loading.value = skinSiteStatus.value === 'checking'
+	if (skinSiteStatus.value !== 'signed-in') return
+	loading.value = true
 	try {
 		const result = await skinSiteAnnouncements()
+		if (currentRequest !== requestId) return
 		if (result.success) {
 			announcements.value = [...(result.payload ?? [])]
 				.sort((a, b) => {
@@ -46,10 +63,20 @@ onMounted(async () => {
 			failed.value = true
 		}
 	} catch {
-		failed.value = true
+		if (currentRequest === requestId) failed.value = true
 	} finally {
-		loading.value = false
+		if (currentRequest === requestId) loading.value = false
 	}
+}
+
+async function retry() {
+	if (skinSiteStatus.value === 'error') await reloadSkinSiteSession()
+	else await load()
+}
+
+watch([skinSiteStatus, () => skinSiteUser.value?.uuid], load, { immediate: true })
+onUnmounted(() => {
+	requestId++
 })
 </script>
 
@@ -63,8 +90,14 @@ onMounted(async () => {
 			<SpinnerIcon class="size-4 animate-spin" />
 			{{ formatMessage(messages.loading) }}
 		</div>
-		<p v-else-if="failed" class="m-0 text-sm text-secondary">
-			{{ formatMessage(messages.failed) }}
+		<div v-else-if="failed" class="flex items-center gap-2 text-sm text-secondary">
+			<p class="m-0">{{ formatMessage(messages.failed) }}</p>
+			<button type="button" class="text-brand hover:underline" @click="retry">
+				{{ formatMessage(commonMessages.retryButton) }}
+			</button>
+		</div>
+		<p v-else-if="skinSiteStatus === 'signed-out'" class="m-0 text-sm text-secondary">
+			{{ formatMessage(messages.signedOut) }}
 		</p>
 		<p v-else-if="!announcements.length" class="m-0 text-sm text-secondary">
 			{{ formatMessage(messages.empty) }}

apps/app-frontend/src/components/ui/skin-site/admin/AdminWikiPage.vue

@@ -7,6 +7,16 @@ import {
 	skinSiteWikiAudit,
 	type SkinSiteWikiAuditInfo,
 	type SkinSiteWikiEditPolicy,
+	type SkinSiteWikiMigrationCandidate,
+	skinSiteWikiMigrationCandidates,
+	skinSiteWikiMigrationDecide,
+	skinSiteWikiMigrationDelete,
+	type SkinSiteWikiMigrationJobInfo,
+	skinSiteWikiMigrationJobs,
+	skinSiteWikiMigrationPublish,
+	skinSiteWikiMigrationRollback,
+	skinSiteWikiMigrationStartAutomatic,
+	skinSiteWikiMigrationStartXml,
 	skinSiteWikiPage,
 	type SkinSiteWikiPageDetail,
 	skinSiteWikiProtectPage,
@@ -16,22 +26,18 @@ import {
 	type SkinSiteWikiSettings,
 	skinSiteWikiSettings,
 	skinSiteWikiUpdateSettings,
-	skinSiteWikiMigrationCandidates,
-	skinSiteWikiMigrationDecide,
-	skinSiteWikiMigrationDelete,
-	skinSiteWikiMigrationJobs,
-	skinSiteWikiMigrationPublish,
-	skinSiteWikiMigrationRollback,
-	skinSiteWikiMigrationStartAutomatic,
-	skinSiteWikiMigrationStartXml,
-	type SkinSiteWikiMigrationCandidate,
-	type SkinSiteWikiMigrationJobInfo,
 } from '@/helpers/skin-site-api'
 
 const { formatMessage } = useVIntl()
 const { handleError, addNotification } = injectNotificationManager()
 
 const messages = defineMessages({
+	policyPublic: { id: 'app.skin-site.admin.wiki.policy-public', defaultMessage: 'Everyone' },
+	policyMember: { id: 'app.skin-site.admin.wiki.policy-member', defaultMessage: 'Members' },
+	policyAdmin: {
+		id: 'app.skin-site.admin.wiki.policy-admin',
+		defaultMessage: 'Website administrators',
+	},
 	title: { id: 'app.skin-site.admin.wiki.title', defaultMessage: 'Wiki' },
 	tabPage: { id: 'app.skin-site.admin.wiki.tab-page', defaultMessage: 'Page' },
 	tabAudit: { id: 'app.skin-site.admin.wiki.tab-audit', defaultMessage: 'Audit log' },
@@ -61,7 +67,8 @@ const messages = defineMessages({
 	},
 	credentialsHint: {
 		id: 'app.skin-site.admin.wiki.credentials-hint',
-		defaultMessage: 'Credentials stay in memory for this job only. HTTPS is required when supplied.',
+		defaultMessage:
+			'Credentials stay in memory for this job only. HTTPS is required when supplied.',
 	},
 	allowPrivate: {
 		id: 'app.skin-site.admin.wiki.allow-private',
@@ -529,8 +536,7 @@ async function loadMigrationJobs() {
 		if (!res.success) throw new Error(res.errorMessage)
 		migrationJobs.value = res.payload ?? []
 		if (selectedJob.value) {
-			selectedJob.value =
-				migrationJobs.value.find((j) => j.id === selectedJob.value!.id) ?? null
+			selectedJob.value = migrationJobs.value.find((j) => j.id === selectedJob.value!.id) ?? null
 		}
 	} catch (error) {
 		handleError(error)
@@ -821,8 +827,8 @@ onMounted(() => void loadSettings())
 							v-model="protectRead"
 							class="rounded-lg border border-solid border-surface-5 bg-bg px-2 py-1 text-xs text-contrast"
 						>
-							<option value="PUBLIC">PUBLIC</option>
-							<option value="MEMBER">MEMBER</option>
+							<option value="PUBLIC">{{ formatMessage(messages.policyPublic) }}</option>
+							<option value="MEMBER">{{ formatMessage(messages.policyMember) }}</option>
 						</select>
 					</label>
 					<label class="flex flex-col gap-1">
@@ -833,8 +839,8 @@ onMounted(() => void loadSettings())
 							v-model="protectEdit"
 							class="rounded-lg border border-solid border-surface-5 bg-bg px-2 py-1 text-xs text-contrast"
 						>
-							<option value="MEMBER">MEMBER</option>
-							<option value="WEB_ADMIN">WEB_ADMIN</option>
+							<option value="MEMBER">{{ formatMessage(messages.policyMember) }}</option>
+							<option value="WEB_ADMIN">{{ formatMessage(messages.policyAdmin) }}</option>
 						</select>
 					</label>
 					<button
@@ -1045,24 +1051,60 @@ onMounted(() => void loadSettings())
 						</summary>
 						<div class="mt-3 grid gap-2 sm:grid-cols-3">
 							<label class="flex flex-col gap-1">
-								<span class="text-[11px] text-secondary">{{ formatMessage(messages.staleDays) }}</span>
-								<input v-model.number="automaticForm.rules.staleDays" type="number" min="1" max="36500" class="rounded-lg border border-solid border-surface-5 bg-bg px-2 py-1 text-xs text-contrast" />
+								<span class="text-[11px] text-secondary">{{
+									formatMessage(messages.staleDays)
+								}}</span>
+								<input
+									v-model.number="automaticForm.rules.staleDays"
+									type="number"
+									min="1"
+									max="36500"
+									class="rounded-lg border border-solid border-surface-5 bg-bg px-2 py-1 text-xs text-contrast"
+								/>
 							</label>
 							<label class="flex flex-col gap-1">
-								<span class="text-[11px] text-secondary">{{ formatMessage(messages.maintainerWindow) }}</span>
-								<input v-model.number="automaticForm.rules.maintainerWindowDays" type="number" min="1" max="36500" class="rounded-lg border border-solid border-surface-5 bg-bg px-2 py-1 text-xs text-contrast" />
+								<span class="text-[11px] text-secondary">{{
+									formatMessage(messages.maintainerWindow)
+								}}</span>
+								<input
+									v-model.number="automaticForm.rules.maintainerWindowDays"
+									type="number"
+									min="1"
+									max="36500"
+									class="rounded-lg border border-solid border-surface-5 bg-bg px-2 py-1 text-xs text-contrast"
+								/>
 							</label>
 							<label class="flex flex-col gap-1">
-								<span class="text-[11px] text-secondary">{{ formatMessage(messages.maxMaintainers) }}</span>
-								<input v-model.number="automaticForm.rules.maximumMaintainers" type="number" min="0" max="100" class="rounded-lg border border-solid border-surface-5 bg-bg px-2 py-1 text-xs text-contrast" />
+								<span class="text-[11px] text-secondary">{{
+									formatMessage(messages.maxMaintainers)
+								}}</span>
+								<input
+									v-model.number="automaticForm.rules.maximumMaintainers"
+									type="number"
+									min="0"
+									max="100"
+									class="rounded-lg border border-solid border-surface-5 bg-bg px-2 py-1 text-xs text-contrast"
+								/>
 							</label>
 							<label class="flex flex-col gap-1 sm:col-span-3">
-								<span class="text-[11px] text-secondary">{{ formatMessage(messages.staleMarkers) }}</span>
-								<input v-model="staleMarkersText" type="text" :placeholder="formatMessage(messages.staleMarkersHint)" class="rounded-lg border border-solid border-surface-5 bg-bg px-2 py-1 text-xs text-contrast" />
+								<span class="text-[11px] text-secondary">{{
+									formatMessage(messages.staleMarkers)
+								}}</span>
+								<input
+									v-model="staleMarkersText"
+									type="text"
+									:placeholder="formatMessage(messages.staleMarkersHint)"
+									class="rounded-lg border border-solid border-surface-5 bg-bg px-2 py-1 text-xs text-contrast"
+								/>
 							</label>
 						</div>
 					</details>
-					<button type="button" class="rounded-lg bg-brand px-4 py-2 text-sm font-semibold text-contrast hover:brightness-110 disabled:opacity-50" :disabled="startingMigration" @click="startAutomaticMigration">
+					<button
+						type="button"
+						class="rounded-lg bg-brand px-4 py-2 text-sm font-semibold text-contrast hover:brightness-110 disabled:opacity-50"
+						:disabled="startingMigration"
+						@click="startAutomaticMigration"
+					>
 						{{ formatMessage(messages.startAuto) }}
 					</button>
 				</div>
@@ -1075,9 +1117,19 @@ onMounted(() => void loadSettings())
 						<span class="text-xs font-semibold text-secondary">
 							{{ formatMessage(messages.xmlFile) }}
 						</span>
-						<input ref="xmlInput" type="file" accept=".xml,text/xml,application/xml" class="text-xs text-contrast" />
+						<input
+							ref="xmlInput"
+							type="file"
+							accept=".xml,text/xml,application/xml"
+							class="text-xs text-contrast"
+						/>
 					</label>
-					<button type="button" class="rounded-lg bg-brand px-4 py-2 text-sm font-semibold text-contrast hover:brightness-110 disabled:opacity-50" :disabled="startingMigration" @click="startXmlMigration">
+					<button
+						type="button"
+						class="rounded-lg bg-brand px-4 py-2 text-sm font-semibold text-contrast hover:brightness-110 disabled:opacity-50"
+						:disabled="startingMigration"
+						@click="startXmlMigration"
+					>
 						{{ formatMessage(messages.startXml) }}
 					</button>
 				</div>
@@ -1087,16 +1139,27 @@ onMounted(() => void loadSettings())
 						<h4 class="m-0 text-sm font-bold text-contrast">
 							{{ formatMessage(messages.jobs) }}
 						</h4>
-						<button type="button" class="rounded-lg bg-button-bg px-3 py-1 text-xs font-semibold text-contrast hover:brightness-110 disabled:opacity-50" :disabled="jobsLoading" @click="loadMigrationJobs">
+						<button
+							type="button"
+							class="rounded-lg bg-button-bg px-3 py-1 text-xs font-semibold text-contrast hover:brightness-110 disabled:opacity-50"
+							:disabled="jobsLoading"
+							@click="loadMigrationJobs"
+						>
 							{{ formatMessage(messages.refreshJobs) }}
 						</button>
 					</div>
 
-					<div v-if="jobsLoading" class="flex min-h-24 items-center justify-center gap-2 text-sm text-secondary">
+					<div
+						v-if="jobsLoading"
+						class="flex min-h-24 items-center justify-center gap-2 text-sm text-secondary"
+					>
 						<SpinnerIcon class="size-4 animate-spin" />
 						{{ formatMessage(messages.loading) }}
 					</div>
-					<p v-else-if="!migrationJobs.length" class="m-0 rounded-lg bg-bg-raised p-3 text-xs text-secondary">
+					<p
+						v-else-if="!migrationJobs.length"
+						class="m-0 rounded-lg bg-bg-raised p-3 text-xs text-secondary"
+					>
 						{{ formatMessage(messages.jobsEmpty) }}
 					</p>
 					<div v-else class="flex flex-col gap-2">
@@ -1107,21 +1170,43 @@ onMounted(() => void loadSettings())
 							:class="selectedJob?.id === job.id ? 'border-brand bg-brand/5' : 'border-surface-5'"
 						>
 							<div class="flex flex-wrap items-center justify-between gap-2">
-								<span class="text-sm font-semibold text-contrast">#{{ job.id }} · {{ job.source }}</span>
-								<span class="rounded-full px-2 py-0.5 text-[10px] font-semibold" :class="jobStateClass(job.state)">
+								<span class="text-sm font-semibold text-contrast"
+									>#{{ job.id }} · {{ job.source }}</span
+								>
+								<span
+									class="rounded-full px-2 py-0.5 text-[10px] font-semibold"
+									:class="jobStateClass(job.state)"
+								>
 									{{ jobStateLabel(job.state) }}
 								</span>
 							</div>
 							<div class="mt-2 h-1.5 overflow-hidden rounded-full bg-button-bg">
-								<div class="h-full bg-brand transition-all" :style="{ width: (job.total ? (job.reviewed / job.total) * 100 : 0) + '%' }"></div>
+								<div
+									class="h-full bg-brand transition-all"
+									:style="{ width: (job.total ? (job.reviewed / job.total) * 100 : 0) + '%' }"
+								></div>
 							</div>
 							<div class="mt-2 flex flex-wrap justify-between gap-2 text-[11px] text-secondary">
-								<span>{{ formatMessage(messages.reviewedCount, { reviewed: job.reviewed, total: job.total }) }}</span>
-								<span>{{ formatMessage(messages.importedExcluded, { imported: job.imported, excluded: job.excluded }) }}</span>
+								<span>{{
+									formatMessage(messages.reviewedCount, {
+										reviewed: job.reviewed,
+										total: job.total,
+									})
+								}}</span>
+								<span>{{
+									formatMessage(messages.importedExcluded, {
+										imported: job.imported,
+										excluded: job.excluded,
+									})
+								}}</span>
 							</div>
 							<p v-if="job.error" class="m-0 mt-2 text-xs text-red">{{ job.error }}</p>
 							<div class="mt-2 flex flex-wrap justify-end gap-2">
-								<button type="button" class="rounded-lg bg-button-bg px-3 py-1 text-xs font-semibold text-contrast hover:brightness-110" @click="selectJob(job)">
+								<button
+									type="button"
+									class="rounded-lg bg-button-bg px-3 py-1 text-xs font-semibold text-contrast hover:brightness-110"
+									@click="selectJob(job)"
+								>
 									{{ formatMessage(messages.viewJob) }}
 								</button>
 								<button
@@ -1139,10 +1224,19 @@ onMounted(() => void loadSettings())
 									{{ formatMessage(messages.confirmDeleteJob, { id: job.id }) }}
 								</p>
 								<div class="mt-2 flex justify-end gap-2">
-									<button type="button" class="rounded-lg bg-button-bg px-3 py-1 text-xs font-semibold text-secondary" @click="confirmingDeleteId = null">
+									<button
+										type="button"
+										class="rounded-lg bg-button-bg px-3 py-1 text-xs font-semibold text-secondary"
+										@click="confirmingDeleteId = null"
+									>
 										{{ formatMessage(messages.cancel) }}
 									</button>
-									<button type="button" class="rounded-lg bg-red px-3 py-1 text-xs font-semibold text-contrast disabled:opacity-50" :disabled="deletingJob" @click="deleteJob(job)">
+									<button
+										type="button"
+										class="rounded-lg bg-red px-3 py-1 text-xs font-semibold text-contrast disabled:opacity-50"
+										:disabled="deletingJob"
+										@click="deleteJob(job)"
+									>
 										{{ formatMessage(messages.deleteJob) }}
 									</button>
 								</div>
@@ -1151,7 +1245,10 @@ onMounted(() => void loadSettings())
 					</div>
 				</div>
 
-				<div v-if="selectedJob" class="flex flex-col gap-3 rounded-xl border border-solid border-surface-5 p-4">
+				<div
+					v-if="selectedJob"
+					class="flex flex-col gap-3 rounded-xl border border-solid border-surface-5 p-4"
+				>
 					<div class="flex flex-wrap items-center justify-between gap-2">
 						<h4 class="m-0 text-sm font-bold text-contrast">
 							{{ formatMessage(messages.candidates) }}
@@ -1180,20 +1277,35 @@ onMounted(() => void loadSettings())
 					<div v-if="confirmingRollbackId === selectedJob.id" class="rounded-lg bg-yellow/10 p-2">
 						<p class="m-0 text-xs text-yellow">{{ formatMessage(messages.confirmRollback) }}</p>
 						<div class="mt-2 flex justify-end gap-2">
-							<button type="button" class="rounded-lg bg-button-bg px-3 py-1 text-xs font-semibold text-secondary" @click="confirmingRollbackId = null">
+							<button
+								type="button"
+								class="rounded-lg bg-button-bg px-3 py-1 text-xs font-semibold text-secondary"
+								@click="confirmingRollbackId = null"
+							>
 								{{ formatMessage(messages.cancel) }}
 							</button>
-							<button type="button" class="rounded-lg bg-yellow px-3 py-1 text-xs font-semibold text-contrast disabled:opacity-50" :disabled="rollingBack" @click="rollbackMigration">
+							<button
+								type="button"
+								class="rounded-lg bg-yellow px-3 py-1 text-xs font-semibold text-contrast disabled:opacity-50"
+								:disabled="rollingBack"
+								@click="rollbackMigration"
+							>
 								{{ formatMessage(messages.rollback) }}
 							</button>
 						</div>
 					</div>
 
-					<div v-if="candidatesLoading && !candidates.length" class="flex min-h-24 items-center justify-center gap-2 text-sm text-secondary">
+					<div
+						v-if="candidatesLoading && !candidates.length"
+						class="flex min-h-24 items-center justify-center gap-2 text-sm text-secondary"
+					>
 						<SpinnerIcon class="size-4 animate-spin" />
 						{{ formatMessage(messages.loading) }}
 					</div>
-					<p v-else-if="!candidates.length" class="m-0 rounded-lg bg-bg-raised p-3 text-xs text-secondary">
+					<p
+						v-else-if="!candidates.length"
+						class="m-0 rounded-lg bg-bg-raised p-3 text-xs text-secondary"
+					>
 						{{ formatMessage(messages.candidatesEmpty) }}
 					</p>
 					<div v-else class="flex flex-col gap-2">
@@ -1203,20 +1315,38 @@ onMounted(() => void loadSettings())
 							class="flex flex-col gap-2 rounded-lg border border-solid border-surface-5 p-3"
 						>
 							<div class="flex flex-wrap items-center gap-2">
-								<span class="min-w-0 flex-1 truncate text-sm font-semibold text-contrast">{{ candidate.title }}</span>
-								<span class="rounded-full px-2 py-0.5 text-[10px] font-semibold" :class="decisionClass(candidate.decision)">
+								<span class="min-w-0 flex-1 truncate text-sm font-semibold text-contrast">{{
+									candidate.title
+								}}</span>
+								<span
+									class="rounded-full px-2 py-0.5 text-[10px] font-semibold"
+									:class="decisionClass(candidate.decision)"
+								>
 									{{ decisionLabel(candidate.decision) }}
 								</span>
-								<span v-if="candidate.conflict" class="rounded-full bg-yellow/20 px-2 py-0.5 text-[10px] font-semibold text-yellow">
+								<span
+									v-if="candidate.conflict"
+									class="rounded-full bg-yellow/20 px-2 py-0.5 text-[10px] font-semibold text-yellow"
+								>
 									{{ formatMessage(messages.conflict) }}
 								</span>
 							</div>
 							<div class="flex flex-wrap gap-3 text-[11px] text-secondary">
-								<span>{{ formatMessage(messages.lastUpdated, { date: new Date(candidate.lastUpdatedAt).toLocaleDateString() }) }}</span>
-								<span>{{ formatMessage(messages.maintainerCount, { count: candidate.maintainerCount }) }}</span>
+								<span>{{
+									formatMessage(messages.lastUpdated, {
+										date: new Date(candidate.lastUpdatedAt).toLocaleDateString(),
+									})
+								}}</span>
+								<span>{{
+									formatMessage(messages.maintainerCount, { count: candidate.maintainerCount })
+								}}</span>
 							</div>
 							<div v-if="candidate.suspiciousReasons.length" class="flex flex-wrap gap-1">
-								<span v-for="reason in candidate.suspiciousReasons" :key="reason" class="rounded bg-bg px-1.5 py-0.5 text-[10px] text-secondary">
+								<span
+									v-for="reason in candidate.suspiciousReasons"
+									:key="reason"
+									class="rounded bg-bg px-1.5 py-0.5 text-[10px] text-secondary"
+								>
 									{{ reason }}
 								</span>
 							</div>
@@ -1228,13 +1358,25 @@ onMounted(() => void loadSettings())
 									class="min-w-0 flex-1 rounded-lg border border-solid border-surface-5 bg-bg-raised px-2 py-1 text-xs text-contrast outline-none focus:border-brand"
 								/>
 								<label class="flex cursor-pointer items-center gap-1.5 text-[11px] text-contrast">
-									<input v-model="candidateOverwrite[candidate.id]" type="checkbox" class="size-3" />
+									<input
+										v-model="candidateOverwrite[candidate.id]"
+										type="checkbox"
+										class="size-3"
+									/>
 									{{ formatMessage(messages.overwrite) }}
 								</label>
-								<button type="button" class="rounded-lg bg-green/20 px-3 py-1 text-xs font-semibold text-green hover:brightness-110" @click="decideCandidate(candidate, 'IMPORT')">
+								<button
+									type="button"
+									class="rounded-lg bg-green/20 px-3 py-1 text-xs font-semibold text-green hover:brightness-110"
+									@click="decideCandidate(candidate, 'IMPORT')"
+								>
 									{{ formatMessage(messages.importAction) }}
 								</button>
-								<button type="button" class="rounded-lg bg-red/20 px-3 py-1 text-xs font-semibold text-red hover:brightness-110" @click="decideCandidate(candidate, 'EXCLUDE')">
+								<button
+									type="button"
+									class="rounded-lg bg-red/20 px-3 py-1 text-xs font-semibold text-red hover:brightness-110"
+									@click="decideCandidate(candidate, 'EXCLUDE')"
+								>
 									{{ formatMessage(messages.excludeAction) }}
 								</button>
 							</div>
@@ -1251,8 +1393,6 @@ onMounted(() => void loadSettings())
 					</div>
 				</div>
 			</div>
-
-
-</template>
+		</template>
 	</div>
 </template>

apps/app-frontend/src/composables/skin-site-session.test.ts

@@ -0,0 +1,208 @@
+import assert from 'node:assert/strict'
+import { registerHooks } from 'node:module'
+import test from 'node:test'
+
+type FetchHandler = (url: string, options: RequestInit) => Promise<Response>
+const testGlobal = globalThis as unknown as { skinSiteTestFetch: FetchHandler }
+const hooks = registerHooks({
+	resolve(specifier, context, nextResolve) {
+		if (specifier === '@tauri-apps/plugin-http') {
+			return {
+				url: 'data:text/javascript,export const fetch=(...args)=>globalThis.skinSiteTestFetch(...args)',
+				shortCircuit: true,
+			}
+		}
+		if (specifier.startsWith('@/')) {
+			return nextResolve(new URL(`../${specifier.slice(2)}.ts`, import.meta.url).href, context)
+		}
+		return nextResolve(specifier, context)
+	},
+})
+const session = await import('./skin-site-session.ts')
+hooks.deregister()
+
+const user = { uuid: 'owner', username: 'Player', permissions: [] }
+const ok = (payload: unknown) => Response.json({ payload })
+const storage = new Map<string, string>()
+const tokenKey = 'starlight-skin-site-token'
+let calls: Array<{ path: string; token: string | undefined }> = []
+let respond: FetchHandler
+
+test.beforeEach(() => {
+	storage.clear()
+	Object.defineProperty(globalThis, 'localStorage', {
+		configurable: true,
+		value: {
+			getItem: (key: string) => storage.get(key) ?? null,
+			setItem: (key: string, value: string) => storage.set(key, value),
+			removeItem: (key: string) => storage.delete(key),
+		},
+	})
+	calls = []
+	respond = async (url) => {
+		if (url.endsWith('/user/refresh')) return ok({ username: 'Player', jwt: 'fresh-token' })
+		if (url.endsWith('/user')) return ok(user)
+		return ok([])
+	}
+	testGlobal.skinSiteTestFetch = async (url, options) => {
+		calls.push({
+			path: new URL(url).pathname,
+			token: (options.headers as Record<string, string>)?.Authorization,
+		})
+		return respond(url, options)
+	}
+	session.resetSkinSiteSession()
+})
+
+test.afterEach(async () => {
+	session.signOutSkinSite()
+	await new Promise((resolve) => setImmediate(resolve))
+	Reflect.deleteProperty(globalThis, 'localStorage')
+})
+
+test('startup renews the stored JWT before loading the user with the new token', async () => {
+	storage.set(tokenKey, 'old-token')
+	await session.initSkinSiteSession()
+	assert.deepEqual(calls.slice(0, 2), [
+		{ path: '/starlight/user/refresh', token: 'Bearer old-token' },
+		{ path: '/starlight/user', token: 'Bearer fresh-token' },
+	])
+	assert.equal(storage.get(tokenKey), 'fresh-token')
+	assert.equal(session.skinSiteStatus.value, 'signed-in')
+})
+
+test('simultaneous startup consumers share one refresh', async () => {
+	storage.set(tokenKey, 'old-token')
+	await Promise.all([
+		session.initSkinSiteSession(),
+		session.initSkinSiteSession(),
+		session.waitForSkinSiteSession(),
+	])
+	assert.equal(calls.filter((call) => call.path.endsWith('/refresh')).length, 1)
+})
+
+test('startup without a stored token does not make authenticated requests', async () => {
+	await session.initSkinSiteSession()
+	assert.equal(session.skinSiteStatus.value, 'signed-out')
+	assert.deepEqual(calls, [])
+})
+
+test('an expired token is cleared when renewal is rejected', async () => {
+	storage.set(tokenKey, 'expired-token')
+	respond = async () => Response.json({ errorMessage: 'Expired' }, { status: 401 })
+	await session.initSkinSiteSession()
+	assert.equal(storage.has(tokenKey), false)
+	assert.equal(session.skinSiteStatus.value, 'signed-out')
+	assert.equal(calls.length, 1)
+})
+
+test('temporary renewal failure preserves the token and allows startup retry', async () => {
+	storage.set(tokenKey, 'old-token')
+	respond = async () => Response.json({ errorMessage: 'Unavailable' }, { status: 503 })
+	await session.initSkinSiteSession()
+	assert.equal(session.skinSiteStatus.value, 'error')
+	assert.equal(storage.get(tokenKey), 'old-token')
+	respond = async (url) =>
+		url.endsWith('/refresh')
+			? ok({ jwt: 'fresh-token' })
+			: url.endsWith('/user')
+				? ok(user)
+				: ok([])
+	await session.initSkinSiteSession()
+	assert.equal(session.skinSiteStatus.value, 'signed-in')
+})
+
+test('a late refresh cannot restore a session after sign-out', async () => {
+	storage.set(tokenKey, 'old-token')
+	let finish!: (response: Response) => void
+	respond = () =>
+		new Promise((resolve) => {
+			finish = resolve
+		})
+	const initializing = session.initSkinSiteSession()
+	await new Promise((resolve) => setImmediate(resolve))
+	session.signOutSkinSite()
+	finish(ok({ username: 'Player', jwt: 'late-token' }))
+	await initializing
+	assert.equal(storage.has(tokenKey), false)
+	assert.equal(session.skinSiteStatus.value, 'signed-out')
+	assert.equal(session.skinSiteUser.value, null)
+})
+
+test('a malformed refresh response never replaces the saved token', async () => {
+	storage.set(tokenKey, 'old-token')
+	respond = async () => ok({ username: 'Player' })
+	await session.initSkinSiteSession()
+	assert.equal(storage.get(tokenKey), 'old-token')
+	assert.equal(session.skinSiteStatus.value, 'error')
+})
+
+test('a failed sign-in attempt does not invalidate a pending startup renewal', async () => {
+	storage.set(tokenKey, 'old-token')
+	let finish!: (response: Response) => void
+	respond = async (url) => {
+		if (url.endsWith('/refresh'))
+			return new Promise((resolve) => {
+				finish = resolve
+			})
+		if (url.endsWith('/login'))
+			return Response.json({ errorMessage: 'Invalid password' }, { status: 401 })
+		return url.endsWith('/user') ? ok(user) : ok([])
+	}
+	const initializing = session.initSkinSiteSession()
+	await new Promise((resolve) => setImmediate(resolve))
+	await session.signInSkinSite({ username: 'Player', password: 'wrong', clientId: 'captcha' })
+	finish(ok({ username: 'Player', jwt: 'fresh-token' }))
+	await initializing
+	assert.equal(session.skinSiteStatus.value, 'signed-in')
+	assert.equal(storage.get(tokenKey), 'fresh-token')
+})
+
+test('rejection of an old startup token does not discard a new successful login', async () => {
+	storage.set(tokenKey, 'expired-token')
+	let finishRefresh!: (response: Response) => void
+	let finishLogin!: (response: Response) => void
+	respond = async (url) => {
+		if (url.endsWith('/refresh'))
+			return new Promise((resolve) => {
+				finishRefresh = resolve
+			})
+		if (url.endsWith('/login'))
+			return new Promise((resolve) => {
+				finishLogin = resolve
+			})
+		return url.endsWith('/user') ? ok(user) : ok([])
+	}
+	const initializing = session.initSkinSiteSession()
+	const signingIn = session.signInSkinSite({
+		username: 'Player',
+		password: 'valid',
+		clientId: 'captcha',
+	})
+	await new Promise((resolve) => setImmediate(resolve))
+	finishRefresh(Response.json({ errorMessage: 'Expired' }, { status: 401 }))
+	await initializing
+	finishLogin(ok({ username: 'Player', jwt: 'login-token' }))
+	await signingIn
+	assert.equal(session.skinSiteStatus.value, 'signed-in')
+	assert.equal(storage.get(tokenKey), 'login-token')
+})
+
+test('explicit sign-out discards a late successful login', async () => {
+	let finishLogin!: (response: Response) => void
+	respond = () =>
+		new Promise((resolve) => {
+			finishLogin = resolve
+		})
+	const signingIn = session.signInSkinSite({
+		username: 'Player',
+		password: 'valid',
+		clientId: 'captcha',
+	})
+	await new Promise((resolve) => setImmediate(resolve))
+	session.signOutSkinSite()
+	finishLogin(ok({ username: 'Player', jwt: 'late-login-token' }))
+	await signingIn
+	assert.equal(session.skinSiteStatus.value, 'signed-out')
+	assert.equal(storage.has(tokenKey), false)
+})

apps/app-frontend/src/composables/skin-site-session.ts

@@ -65,13 +65,54 @@ function clearSessionState() {
 // ---------------------------------------------------------------------------
 
 let initialized: Promise<void> | null = null
+let sessionRevision = 0
+let loginRevision = 0
+let refreshRequest: { token: string; revision: number; promise: Promise<boolean> } | null = null
+
+/** Share renewals and discard results from a session that has since changed. */
+function renewSkinSiteToken(): Promise<boolean> {
+	const token = getSkinSiteToken()
+	if (!token) return Promise.resolve(false)
+	const revision = sessionRevision
+	if (refreshRequest?.token === token && refreshRequest.revision === revision) {
+		return refreshRequest.promise
+	}
+	const request = {
+		token,
+		revision,
+		promise: (async () => {
+			let result: SkinSiteResponse<{ username: string; jwt: string }>
+			try {
+				result = await skinSiteRefresh()
+			} catch {
+				return false
+			}
+			if (revision !== sessionRevision || getSkinSiteToken() !== token) return false
+			if (result.success) {
+				if (typeof result.payload?.jwt !== 'string' || !result.payload.jwt.trim()) return false
+				setSkinSiteToken(result.payload.jwt)
+				return true
+			}
+			if (result.errorCode === 401 || result.errorCode === 403) invalidateSkinSiteSession()
+			return false
+		})(),
+	}
+	refreshRequest = request
+	const clearRequest = () => {
+		if (refreshRequest === request) refreshRequest = null
+	}
+	void request.promise.then(clearRequest, clearRequest)
+	return request.promise
+}
 
 /**
- * Resolve the current session from the stored JWT. Safe to call repeatedly;
+ * Renew the saved JWT on each launcher startup before loading the user.
+ * Safe to call repeatedly;
  * the first call performs the actual work and later ones reuse it.
  */
 export function initSkinSiteSession(): Promise<void> {
 	if (initialized) return initialized
+	const revision = sessionRevision
 	initialized = (async () => {
 		const token = getSkinSiteToken()
 		if (!token) {
@@ -79,7 +120,13 @@ export function initSkinSiteSession(): Promise<void> {
 			return
 		}
 		status.value = 'checking'
+		if (!(await renewSkinSiteToken())) {
+			if (revision === sessionRevision) status.value = 'error'
+			return
+		}
+		if (revision !== sessionRevision) return
 		const result = await skinSiteCurrentUser()
+		if (revision !== sessionRevision) return
 		if (result.success) {
 			user.value = toUser(result.payload)
 			status.value = 'signed-in'
@@ -92,11 +139,18 @@ export function initSkinSiteSession(): Promise<void> {
 			status.value = 'error'
 		}
 	})()
+		.catch(() => {
+			if (revision === sessionRevision) status.value = 'error'
+		})
+		.finally(() => {
+			if (revision === sessionRevision && status.value === 'error') initialized = null
+		})
 	return initialized
 }
 
 /** Force a re-check (e.g. after the user signs in from another view). */
 export function reloadSkinSiteSession(): Promise<void> {
+	sessionRevision++
 	initialized = null
 	return initSkinSiteSession()
 }
@@ -106,10 +160,14 @@ export async function signInSkinSite(payload: {
 	password: string
 	clientId: string
 }): Promise<SkinSiteResponse<{ username: string; jwt: string }>> {
+	const attemptRevision = ++loginRevision
 	const result = await skinSiteLogin(payload)
-	if (result.success) {
+	if (result.success && attemptRevision === loginRevision) {
+		const revision = ++sessionRevision
+		initialized = null
 		setSkinSiteToken(result.payload.jwt)
 		const current = await skinSiteCurrentUser()
+		if (revision !== sessionRevision) return result
 		if (current.success) {
 			user.value = toUser(current.payload)
 			status.value = 'signed-in'
@@ -122,23 +180,25 @@ export async function signInSkinSite(payload: {
 	return result
 }
 
-export function signOutSkinSite() {
+/** Reject an old credential without cancelling a newer explicit login attempt. */
+function invalidateSkinSiteSession() {
+	sessionRevision++
+	refreshRequest = null
 	clearSkinSiteToken()
 	clearSessionState()
 	status.value = 'signed-out'
 	initialized = null
 }
 
+export function signOutSkinSite() {
+	loginRevision++
+	invalidateSkinSiteSession()
+}
+
 /** Refresh the JWT; returns true when a new token was stored. */
 export async function refreshSkinSiteSession(): Promise<boolean> {
 	if (status.value !== 'signed-in') return false
-	const result = await skinSiteRefresh()
-	if (result.success) {
-		setSkinSiteToken(result.payload.jwt)
-		return true
-	}
-	if (result.errorCode === 401 || result.errorCode === 403) signOutSkinSite()
-	return false
+	return renewSkinSiteToken()
 }
 
 // ---------------------------------------------------------------------------
@@ -157,6 +217,9 @@ export function receiveSkinSiteMessage(_event: MessageEvent, _frame: Window | nu
 export function openSkinSiteLogin() {}
 
 export function resetSkinSiteSession() {
+	loginRevision++
+	sessionRevision++
+	refreshRequest = null
 	clearSessionState()
 	status.value = getSkinSiteToken() ? 'checking' : 'signed-out'
 	initialized = null

apps/app-frontend/src/helpers/hosted-download-controls.test.ts

@@ -0,0 +1,96 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+
+import {
+	hostedDownloadActions,
+	hostedDownloadState,
+	runHostedDownloadAction,
+	runHostedDownloadControl,
+} from './hosted-download-controls.ts'
+
+test('only a controllable parent hosted task offers pause, resume and stop', () => {
+	const bar = {
+		bar_type: {
+			type: 'hosted_pack_sync',
+			instance_id: 'one',
+			state: 'running' as const,
+			can_pause: true,
+			can_cancel: true,
+		},
+	}
+	assert.deepEqual(hostedDownloadActions(bar), ['pause', 'cancel'])
+	assert.deepEqual(hostedDownloadActions({ bar_type: { ...bar.bar_type, state: 'paused' } }), [
+		'resume',
+		'cancel',
+	])
+	for (const state of ['finalizing', 'canceling'] as const) {
+		assert.deepEqual(hostedDownloadActions({ bar_type: { ...bar.bar_type, state } }), [])
+	}
+	assert.deepEqual(
+		hostedDownloadActions({ bar_type: { ...bar.bar_type, type: 'hosted_mod_download' } }),
+		[],
+	)
+	assert.deepEqual(
+		hostedDownloadActions({ bar_type: { type: 'hosted_pack_sync', instance_id: 'one' } }),
+		[],
+	)
+})
+
+test('failed and canceled hosted tasks offer direct retry, preserving terminal state', () => {
+	for (const state of ['failed', 'canceled'] as const) {
+		const bar = {
+			bar_type: { type: 'hosted_pack_sync', instance_id: 'one', state, error: 'failure' },
+		}
+		assert.deepEqual(hostedDownloadActions(bar), ['retry'])
+		assert.equal(hostedDownloadState(bar), state)
+	}
+	assert.equal(hostedDownloadState({ bar_type: { error: 'old backend failure' } }), 'failed')
+})
+
+test('resume refreshes the session before invoking controls; pause and stop need no session', async () => {
+	const calls: string[] = []
+	const deps = {
+		prepareSession: async () => {
+			calls.push('session')
+		},
+		invoke: async (command: string, args: { instanceId: string }) => {
+			calls.push(`${command}:${args.instanceId}`)
+		},
+	}
+	await runHostedDownloadControl('resume', 'one', deps)
+	await runHostedDownloadControl('pause', 'one', deps)
+	await runHostedDownloadControl('cancel', 'one', deps)
+	assert.deepEqual(calls, [
+		'session',
+		'plugin:install|hosted_resume:one',
+		'plugin:install|hosted_pause:one',
+		'plugin:install|hosted_cancel:one',
+	])
+})
+
+test('session refresh failures prevent resume', async () => {
+	await assert.rejects(
+		runHostedDownloadControl('resume', 'one', {
+			prepareSession: async () => {
+				throw new Error('signed out')
+			},
+			invoke: async () => {
+				assert.fail('resume must not run')
+			},
+		}),
+		/signed out/,
+	)
+})
+
+test('retry immediately restarts the existing hosted instance through the manager', async () => {
+	const calls: string[] = []
+	await runHostedDownloadAction('retry', 'existing-instance', {
+		retryHosted: async (instanceId) => {
+			calls.push(instanceId)
+		},
+		control: async () => {
+			assert.fail('retry must use the full hosted transaction')
+		},
+	})
+	assert.deepEqual(calls, ['existing-instance'])
+})

apps/app-frontend/src/helpers/hosted-download-controls.ts

@@ -0,0 +1,45 @@
+import type { LoadingBar } from './state.ts'
+
+export type HostedDownloadControl = 'pause' | 'resume' | 'cancel'
+export type HostedDownloadAction = HostedDownloadControl | 'retry'
+
+export function runHostedDownloadAction(
+	action: HostedDownloadAction,
+	instanceId: string,
+	operations: {
+		retryHosted: (instanceId: string) => Promise<void>
+		control: (action: HostedDownloadControl, instanceId: string) => Promise<void>
+	},
+) {
+	return action === 'retry'
+		? operations.retryHosted(instanceId)
+		: operations.control(action, instanceId)
+}
+
+export function hostedDownloadState(bar: LoadingBar) {
+	return bar.bar_type?.state ?? (bar.bar_type?.error ? 'failed' : 'running')
+}
+
+export function hostedDownloadActions(bar: LoadingBar): HostedDownloadAction[] {
+	const type = bar.bar_type
+	if (type?.type !== 'hosted_pack_sync' || !type.instance_id) return []
+	const state = hostedDownloadState(bar)
+	if (state === 'failed' || state === 'canceled') return ['retry']
+	if (state !== 'running' && state !== 'paused') return []
+	const actions: HostedDownloadAction[] = []
+	if (type.can_pause) actions.push(state === 'paused' ? 'resume' : 'pause')
+	if (type.can_cancel) actions.push('cancel')
+	return actions
+}
+
+export async function runHostedDownloadControl(
+	action: HostedDownloadControl,
+	instanceId: string,
+	dependencies: {
+		prepareSession: () => Promise<void>
+		invoke: (command: string, args: { instanceId: string }) => Promise<void>
+	},
+) {
+	if (action === 'resume') await dependencies.prepareSession()
+	await dependencies.invoke(`plugin:install|hosted_${action}`, { instanceId })
+}

apps/app-frontend/src/helpers/hosted-download-failures.test.ts

@@ -3,6 +3,27 @@ import test from 'node:test'
 
 import { createHostedDownloadFailures } from './hosted-download-failures.ts'
 
+test('stopped hosted downloads retain their state and instance for direct retry', () => {
+	const state = createHostedDownloadFailures()
+	state.update({
+		fraction: null,
+		loader_uuid: 'stopped',
+		event: {
+			type: 'hosted_pack_sync',
+			instance_id: 'existing-instance',
+			state: 'canceled',
+			error: 'Stopped by user',
+			can_pause: false,
+			can_cancel: false,
+		},
+	})
+	assert.equal(state.values()[0]?.bar_type?.state, 'canceled')
+	assert.equal(state.values()[0]?.bar_type?.instance_id, 'existing-instance')
+	state.begin('existing-instance', state.values())
+	assert.equal(state.has('existing-instance'), false)
+	assert.equal(state.isRetired('stopped'), true)
+})
+
 test('retry clears only its own failure before progress arrives and ignores late old events', () => {
 	const state = createHostedDownloadFailures()
 	const failed = (instanceId: string, loader: string, error: string) => ({

apps/app-frontend/src/helpers/hosted-packs.ts

@@ -8,6 +8,7 @@ import {
 	skinSiteUser,
 	waitForSkinSiteSession,
 } from '../composables/skin-site-session.ts'
+import { type HostedDownloadControl, runHostedDownloadControl } from './hosted-download-controls.ts'
 import { authenticateInstancePlayer } from './instance-player.ts'
 
 export const HOSTED_ACCOUNT_REQUIRED_MESSAGE = '您需要登录正版或皮肤站账号后才能操作'
@@ -146,6 +147,11 @@ export const hostedCreate = async (gameDirRoot?: string | null) => {
 }
 export const hostedBinding = (instanceId: string) =>
 	invokeHosted<HostedBinding | null>('plugin:install|hosted_binding', { instanceId })
+export const controlHostedDownload = (action: HostedDownloadControl, instanceId: string) =>
+	runHostedDownloadControl(action, instanceId, {
+		prepareSession: prepareHostedSession,
+		invoke: invokeHosted<void>,
+	})
 export const hostedSync = async (instanceId: string) => {
 	await requireHostedGameAccount()
 	startHostedPackAttempt(instanceId)

apps/app-frontend/src/helpers/state.ts

@@ -9,6 +9,9 @@ export interface LoadingBarType {
 	batch_id?: string
 	file_name?: string
 	error?: string | null
+	state?: 'running' | 'paused' | 'canceling' | 'canceled' | 'failed' | 'finalizing'
+	can_pause?: boolean
+	can_cancel?: boolean
 	type?: string
 	version?: string
 	instance_id?: string
@@ -28,7 +31,12 @@ export interface LoadingBar {
 }
 
 export type OpeningCommandEvent =
-	'RunMRPack' | 'InstallServer' | 'InstallVersion' | 'InstallMod' | 'InstallModpack' | string
+	| 'RunMRPack'
+	| 'InstallServer'
+	| 'InstallVersion'
+	| 'InstallMod'
+	| 'InstallModpack'
+	| string
 
 export interface OpeningCommand {
 	event: OpeningCommandEvent

apps/app-frontend/src/pages/Downloads.vue

@@ -84,7 +84,7 @@
 					</TagItem>
 					<Badge
 						:color="bar.bar_type?.error ? 'red' : 'orange'"
-						:type="statusLabel(bar.bar_type?.error ? 'failed' : 'running')"
+						:type="statusLabel(hostedDownloadState(bar))"
 					/>
 				</div>
 				<ProgressBar
@@ -94,16 +94,35 @@
 					:progress="legacyPercent(bar)"
 					:max="100"
 					:label="formatMessage(messages.progress)"
-					:waiting="!bar.total"
+					:waiting="!bar.total && hostedDownloadState(bar) !== 'paused'"
 					:show-progress="Boolean(bar.total)"
 				/>
-				<RouterLink
-					v-else
-					:to="hostedRetryRoute(bar.bar_type?.instance_id ?? '')"
-					class="mt-3 inline-block text-brand hover:underline"
+				<div
+					v-if="hostedDownloadActions(bar).length"
+					class="mt-3 flex flex-wrap items-center gap-2"
 				>
-					{{ formatMessage(messages.hostedRetry) }}
-				</RouterLink>
+					<ButtonStyled
+						v-for="action in hostedDownloadActions(bar)"
+						:key="action"
+						:color="action === 'retry' ? 'brand' : action === 'cancel' ? 'red' : 'standard'"
+						:type="action === 'retry' ? 'standard' : 'outlined'"
+						size="small"
+					>
+						<button
+							:disabled="busy.has(hostedBusyKey(bar, action))"
+							@click="hostedAction(bar, action)"
+						>
+							{{ formatMessage(hostedActionMessages[action]) }}
+						</button>
+					</ButtonStyled>
+					<RouterLink
+						v-if="bar.bar_type?.error"
+						:to="hostedRetryRoute(bar.bar_type.instance_id ?? '')"
+						class="text-brand hover:underline"
+					>
+						{{ formatMessage(messages.openInstance) }}
+					</RouterLink>
+				</div>
 			</Card>
 
 			<Card
@@ -471,7 +490,14 @@ import { useRoute, useRouter } from 'vue-router'
 import MissingModpackContentModal from '@/components/ui/modal/MissingModpackContentModal.vue'
 import { listPendingCurseForgeManualDownloads } from '@/helpers/curseforge'
 import type { CurseForgeManualDownloadItem } from '@/helpers/curseforge-manual'
+import {
+	type HostedDownloadAction,
+	hostedDownloadActions,
+	hostedDownloadState,
+	runHostedDownloadAction,
+} from '@/helpers/hosted-download-controls'
 import { hostedRetryRoute } from '@/helpers/hosted-install-retry'
+import { controlHostedDownload } from '@/helpers/hosted-packs'
 import {
 	download_job_support_details,
 	type InstallJobSnapshot,
@@ -517,10 +543,6 @@ const focusedJobId = computed(() => focusedDownloadJobId(route.query.job))
 const focusState = ref(createDownloadFocusState(focusedJobId.value))
 
 const messages = defineMessages({
-	hostedRetry: {
-		id: 'app.hosted-packs.progress.retry',
-		defaultMessage: 'Return to the instance to retry',
-	},
 	newDownload: { id: 'app.downloads.new-download', defaultMessage: 'New download' },
 	inProgress: { id: 'app.downloads.in-progress', defaultMessage: 'In progress' },
 	history: { id: 'app.downloads.history', defaultMessage: 'History' },
@@ -653,7 +675,15 @@ const messages = defineMessages({
 	unknownPhase: { id: 'app.downloads.phase.unknown', defaultMessage: 'Working' },
 })
 
+const hostedActionMessages = defineMessages({
+	pause: { id: 'app.hosted-packs.progress.pause', defaultMessage: 'Pause' },
+	resume: { id: 'app.hosted-packs.progress.resume', defaultMessage: 'Resume' },
+	cancel: { id: 'app.hosted-packs.progress.stop', defaultMessage: 'Stop' },
+	retry: { id: 'app.downloads.retry', defaultMessage: 'Retry' },
+})
+
 const statusMessages = defineMessages({
+	paused: { id: 'app.downloads.status.paused', defaultMessage: 'Paused' },
 	queued: { id: 'app.downloads.status.queued', defaultMessage: 'Queued' },
 	running: { id: 'app.downloads.status.running', defaultMessage: 'Running' },
 	canceling: { id: 'app.downloads.status.canceling', defaultMessage: 'Canceling' },
@@ -1262,6 +1292,7 @@ function toggleExpanded(jobId: string) {
 }
 
 async function withBusy(jobId: string, action: () => Promise<void>) {
+	if (busy.value.has(jobId)) return
 	busy.value = new Set([...busy.value, jobId])
 	try {
 		await action()
@@ -1278,6 +1309,21 @@ async function cancel(job: InstallJobSnapshot) {
 	await withBusy(job.job_id, () => manager.cancel(job.job_id))
 }
 
+function hostedBusyKey(bar: LoadingBar, action: HostedDownloadAction) {
+	return `hosted-${action === 'retry' ? 'retry' : 'control'}:${bar.bar_type?.instance_id}`
+}
+
+async function hostedAction(bar: LoadingBar, action: HostedDownloadAction) {
+	const instanceId = bar.bar_type?.instance_id
+	if (!instanceId || !hostedDownloadActions(bar).includes(action)) return
+	await withBusy(hostedBusyKey(bar, action), () =>
+		runHostedDownloadAction(action, instanceId, {
+			retryHosted: manager.retryHosted,
+			control: controlHostedDownload,
+		}),
+	)
+}
+
 async function retry(job: InstallJobSnapshot) {
 	await withBusy(job.job_id, () => manager.retry(job.job_id))
 }
@@ -1293,12 +1339,14 @@ async function resolveMissing(job: InstallJobSnapshot) {
 				(item) =>
 					item.status === 'skipped' && item.manual_url && item.project_id && item.version_id,
 			)
-			.map((item): CurseForgeManualDownloadItem => ({
-				projectId: Number(item.project_id),
-				fileId: Number(item.version_id),
-				fileName: item.name,
-				websiteUrl: item.manual_url ?? undefined,
-			}))
+			.map(
+				(item): CurseForgeManualDownloadItem => ({
+					projectId: Number(item.project_id),
+					fileId: Number(item.version_id),
+					fileName: item.name,
+					websiteUrl: item.manual_url ?? undefined,
+				}),
+			)
 		const instanceId = job.instance_id
 		const hasGeneralMissingItems = job.items.some((item) => item.status === 'failed')
 		if (instanceId && (job.provider === 'curse_forge' || fallbackCurseForgeItems.length > 0)) {

apps/app/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "theseus_gui"
 # The actual version is set by the theseus-build workflow on tagging
-version = "1.0.2-beta7"
+version = "1.0.2-beta11"
 edition.workspace = true
 description = "Axolotl Launcher is a cross-platform Minecraft launcher"
 homepage = "https://www.ghs.red"

apps/app/build.rs

@@ -380,6 +380,9 @@ fn main() {
                         "hosted_create",
                         "hosted_binding",
                         "hosted_sync",
+                        "hosted_pause",
+                        "hosted_resume",
+                        "hosted_cancel",
                         "hosted_instance_mode",
                         "hosted_set_instance_mode",
                         "install_pack_to_existing_instance",

apps/app/src/api/install.rs

@@ -20,6 +20,9 @@ pub fn init<R: tauri::Runtime>() -> tauri::plugin::TauriPlugin<R> {
             hosted_create,
             hosted_binding,
             hosted_sync,
+            hosted_pause,
+            hosted_resume,
+            hosted_cancel,
             hosted_instance_mode,
             hosted_set_instance_mode,
             install_get_modpack_preview,
@@ -105,6 +108,21 @@ pub async fn hosted_sync(
     Ok(theseus::pack::hosted::synchronize(&instance_id).await?)
 }
 
+#[tauri::command]
+pub async fn hosted_pause(instance_id: String) -> Result<()> {
+    Ok(theseus::pack::hosted::pause(&instance_id).await?)
+}
+
+#[tauri::command]
+pub async fn hosted_resume(instance_id: String) -> Result<()> {
+    Ok(theseus::pack::hosted::resume(&instance_id).await?)
+}
+
+#[tauri::command]
+pub async fn hosted_cancel(instance_id: String) -> Result<()> {
+    Ok(theseus::pack::hosted::cancel(&instance_id).await?)
+}
+
 #[derive(Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct InstallCreateInstanceRequest {

packages/app-lib/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "theseus"
 # The actual version is set by the theseus-build workflow on tagging
-version = "1.0.2-beta7"
+version = "1.0.2-beta11"
 edition.workspace = true
 
 [dependencies]

packages/app-lib/src/api/curseforge.rs

@@ -5197,19 +5197,9 @@ fn modpack_zip_error(error: zip::result::ZipError) -> crate::Error {
 }
 
 fn safe_archive_relative_path(value: &str) -> crate::Result<String> {
-    let path = Path::new(value);
-    if value.is_empty()
-        || path.is_absolute()
-        || path
-            .components()
-            .any(|component| !matches!(component, Component::Normal(_)))
-    {
-        return Err(ErrorKind::InputError(
-            "CurseForge modpack contains an invalid override path".to_string(),
-        )
-        .into());
-    }
-    Ok(path.to_string_lossy().replace('\\', "/"))
+    let normalized = value.replace('\\', "/");
+    crate::util::io::safe_relative_join(Path::new(""), &normalized)?;
+    Ok(normalized)
 }
 
 pub(crate) fn loader_family(loader_id: &str) -> &str {
@@ -10933,6 +10923,21 @@ mod tests {
         );
         assert!(safe_archive_relative_path("../options.txt").is_err());
         assert!(safe_archive_relative_path("/options.txt").is_err());
+        for path in [
+            r"..\options.txt",
+            "config/.. /outside",
+            "config/file:stream",
+            "C:/outside",
+            "C:outside",
+            "config/NUL",
+            "config/file.",
+        ] {
+            assert!(safe_archive_relative_path(path).is_err(), "{path}");
+        }
+        assert_eq!(
+            safe_archive_relative_path(r"config\example.toml").unwrap(),
+            "config/example.toml"
+        );
     }
 
     #[test]

packages/app-lib/src/api/pack/archive_util.rs

@@ -1,6 +1,6 @@
 //! Shared helpers for extracting content from local modpack archives.
 
-use std::path::{Component, Path, PathBuf};
+use std::path::{Path, PathBuf};
 
 use super::detect::decode_zip_entry_name;
 use crate::util::io;
@@ -13,22 +13,6 @@ fn archive_error(error: zip::result::ZipError) -> crate::Error {
         .into()
 }
 
-pub(crate) fn safe_relative_path(value: &str) -> crate::Result<String> {
-    let path = Path::new(value);
-    if value.is_empty()
-        || path.is_absolute()
-        || path
-            .components()
-            .any(|component| !matches!(component, Component::Normal(_)))
-    {
-        return Err(crate::ErrorKind::InputError(
-            "Modpack archive contains an invalid file path".to_string(),
-        )
-        .into());
-    }
-    Ok(path.to_string_lossy().replace('\\', "/"))
-}
-
 /// Extracts every file under `prefix` in the archive into `target_dir`,
 /// preserving the directory structure below the prefix. Returns the number of
 /// files written.
@@ -114,7 +98,8 @@ fn extract_archive_subdir_sync(
             )
             .into());
         }
-        let target = target_dir.join(safe_relative_path(relative)?);
+        let target =
+            io::safe_relative_join(target_dir, &relative.replace('\\', "/"))?;
         if let Some(parent) = target.parent() {
             std::fs::create_dir_all(parent)
                 .map_err(|error| io::IOError::with_path(error, parent))?;
@@ -252,6 +237,87 @@ pub(crate) async fn create_import_scratch_dir(
 #[cfg(test)]
 mod tests {
     use super::*;
+    use std::io::Write;
+
+    #[test]
+    fn unsafe_override_paths_fail_without_writing_outside_target() {
+        let root = tempfile::tempdir().unwrap();
+        let archive_path = root.path().join("pack.zip");
+        let target_dir = root.path().join("server");
+        std::fs::create_dir(&target_dir).unwrap();
+        let outside = root.path().join("outside.txt");
+        std::fs::write(&outside, b"unchanged").unwrap();
+        for prefix in ["overrides/", "server/overrides/"] {
+            for relative in [
+                "../outside.txt",
+                r"..\outside.txt",
+                "config/../../outside.txt",
+                "/outside.txt",
+                "C:/outside.txt",
+                "C:outside.txt",
+                r"\\server\share\outside.txt",
+                "config/.. /outside.txt",
+                "config/mod.jar:payload",
+                "config/NUL",
+                "config/secret.",
+            ] {
+                let mut archive = zip::ZipWriter::new(
+                    std::fs::File::create(&archive_path).unwrap(),
+                );
+                archive
+                    .start_file(
+                        format!("{prefix}{relative}"),
+                        zip::write::SimpleFileOptions::default(),
+                    )
+                    .unwrap();
+                archive.write_all(b"malicious").unwrap();
+                archive.finish().unwrap();
+                assert!(
+                    extract_archive_subdir_sync(
+                        &archive_path,
+                        prefix,
+                        &target_dir,
+                        None,
+                    )
+                    .is_err(),
+                    "{prefix}{relative}"
+                );
+                assert_eq!(std::fs::read(&outside).unwrap(), b"unchanged");
+                assert_eq!(std::fs::read_dir(&target_dir).unwrap().count(), 0);
+            }
+        }
+    }
+
+    #[test]
+    fn override_paths_with_backslashes_are_normalized() {
+        let root = tempfile::tempdir().unwrap();
+        let archive_path = root.path().join("pack.zip");
+        let target_dir = root.path().join("server");
+        let mut archive =
+            zip::ZipWriter::new(std::fs::File::create(&archive_path).unwrap());
+        archive
+            .start_file(
+                r"overrides/config\example.toml",
+                zip::write::SimpleFileOptions::default(),
+            )
+            .unwrap();
+        archive.write_all(b"valid").unwrap();
+        archive.finish().unwrap();
+        assert_eq!(
+            extract_archive_subdir_sync(
+                &archive_path,
+                "overrides/",
+                &target_dir,
+                None,
+            )
+            .unwrap(),
+            1
+        );
+        assert_eq!(
+            std::fs::read(target_dir.join("config/example.toml")).unwrap(),
+            b"valid"
+        );
+    }
 
     struct CancelOnRead {
         cancellation: CancellationToken,

packages/app-lib/src/api/pack/hosted.rs

@@ -1,5 +1,7 @@
 //! Administrator-approved skin-site packs. Only content-addressed changed files cross the network.
+mod control;
 mod progress;
+pub use control::{HostedTaskState, cancel, pause, resume};
 mod tagged;
 mod transport;
 use crate::{
@@ -938,10 +940,20 @@ async fn synchronize_locked(instance_id: &str) -> crate::Result<SyncResult> {
     let metadata = crate::instance::get(instance_id)
         .await?
         .ok_or_else(|| invalid("Unknown instance"))?;
+    let task = control::Registration::new(instance_id)?;
     let progress =
         PackProgress::new(instance_id, &metadata.instance.name).await?;
-    let result =
-        synchronize_with_progress(instance_id, metadata, &progress).await;
+    let result = task
+        .control
+        .run(|| {
+            synchronize_with_progress(
+                instance_id,
+                metadata.clone(),
+                &progress,
+                &task.control,
+            )
+        })
+        .await;
     if let Err(error) = &result {
         progress.fail(error);
     }
@@ -952,6 +964,7 @@ async fn synchronize_with_progress(
     instance_id: &str,
     metadata: crate::state::InstanceMetadata,
     progress: &PackProgress,
+    control: &control::Control,
 ) -> crate::Result<SyncResult> {
     if metadata.instance.linked_launcher.is_some()
         || metadata.instance.symlink_target.is_some()
@@ -1275,7 +1288,7 @@ async fn synchronize_with_progress(
             &format!("文件 0/{total_files}"),
             true,
         );
-        let results = stream::iter(pending_downloads.into_values().map(
+        downloaded += control::collect_downloads(stream::iter(pending_downloads.into_values().map(
             |(file, url, object)| {
                 let current = &current;
                 let completed = &completed;
@@ -1342,34 +1355,14 @@ async fn synchronize_with_progress(
                         request = request
                             .with_header("Authorization", auth.clone());
                     }
-                    let first_result = download_to_path(
+                    download_to_path(
                         request.clone(),
                         &object,
                         &state.fetch_semaphore,
                         &state.pool,
                         Some(&mut on_progress),
                     )
-                    .await;
-                    if let Err(error) = first_result {
-                        tracing::warn!(
-                            path = %file_path,
-                            %error,
-                            "Parallel StarLight file download failed; retrying after the batch load has eased"
-                        );
-                        ensure_session(auth).await?;
-                        tokio::time::sleep(std::time::Duration::from_millis(
-                            750,
-                        ))
-                        .await;
-                        download_to_path(
-                            request,
-                            &object,
-                            &state.fetch_semaphore,
-                            &state.pool,
-                            Some(&mut on_progress),
-                        )
-                        .await?;
-                    }
+                    .await.map_err(|error| error.with_context(format!("下载整合包文件失败：{file_path}")))?;
                     let completed_files =
                         completed.fetch_add(1, Ordering::Relaxed) + 1;
                     let completed_bytes = {
@@ -1391,12 +1384,7 @@ async fn synchronize_with_progress(
                 }
             },
         ))
-        .buffer_unordered(concurrency)
-        .collect::<Vec<_>>()
-        .await;
-        downloaded += results.into_iter().try_fold(0, |sum, result| {
-            Ok::<u64, crate::Error>(sum + result?)
-        })?;
+        .buffer_unordered(concurrency)).await?;
     }
     ensure_session(&auth).await?;
     downloaded += tagged::download(
@@ -1446,6 +1434,8 @@ async fn synchronize_with_progress(
         previous,
         metadata,
     };
+    // From this atomic boundary onward the rollback/runtime transaction must finish.
+    control.begin_finalizing()?;
     write_json(&root, JOURNAL, &journal)?;
     let result = async {
         progress.update(0, 0, "正在安装游戏组件", true);

packages/app-lib/src/api/pack/hosted/control.rs

@@ -0,0 +1,329 @@
+use futures::{Stream, StreamExt};
+use serde::{Deserialize, Serialize};
+use std::{
+    future::Future,
+    sync::{Arc, LazyLock, Mutex},
+};
+use tokio::sync::watch;
+
+#[derive(
+    Clone, Copy, Debug, Default, Deserialize, Serialize, Hash, PartialEq, Eq,
+)]
+#[serde(rename_all = "snake_case")]
+pub enum HostedTaskState {
+    #[default]
+    Running,
+    Paused,
+    Canceling,
+    Canceled,
+    Failed,
+    Finalizing,
+}
+
+static CONTROLS: LazyLock<dashmap::DashMap<String, Arc<Control>>> =
+    LazyLock::new(dashmap::DashMap::new);
+
+pub(super) struct Control {
+    instance_id: String,
+    state: Mutex<HostedTaskState>,
+    changes: watch::Sender<HostedTaskState>,
+}
+
+fn stopped() -> crate::Error {
+    super::invalid("已停止整合包下载；已下载的缓存会保留，可重试继续")
+}
+
+impl Control {
+    fn new(instance_id: &str) -> Self {
+        Self {
+            instance_id: instance_id.to_owned(),
+            state: Mutex::new(HostedTaskState::Running),
+            changes: watch::channel(HostedTaskState::Running).0,
+        }
+    }
+
+    fn state(&self) -> HostedTaskState {
+        *self.state.lock().unwrap_or_else(|error| error.into_inner())
+    }
+
+    fn transition(
+        &self,
+        allowed: &[HostedTaskState],
+        next: HostedTaskState,
+    ) -> crate::Result<()> {
+        let mut state =
+            self.state.lock().unwrap_or_else(|error| error.into_inner());
+        if !allowed.contains(&state) {
+            return Err(super::invalid(
+                "任务状态已变化或正在应用安装文件，当前操作不可用",
+            ));
+        }
+        *state = next;
+        // Publish under the transition lock, so a late pause cannot overwrite finalization.
+        crate::event::emit::set_hosted_loading_state(&self.instance_id, next);
+        self.changes.send_replace(next);
+        Ok(())
+    }
+
+    fn pause(&self) -> crate::Result<()> {
+        self.transition(&[HostedTaskState::Running], HostedTaskState::Paused)
+    }
+
+    fn resume(&self) -> crate::Result<()> {
+        self.transition(&[HostedTaskState::Paused], HostedTaskState::Running)
+    }
+
+    fn cancel(&self) -> crate::Result<()> {
+        self.transition(
+            &[HostedTaskState::Running, HostedTaskState::Paused],
+            HostedTaskState::Canceling,
+        )
+    }
+
+    pub(super) fn begin_finalizing(&self) -> crate::Result<()> {
+        self.transition(
+            &[HostedTaskState::Running],
+            HostedTaskState::Finalizing,
+        )
+    }
+
+    /// The operation may be dropped only before begin_finalizing. Restarting
+    /// re-plans from verified cache objects and the downloader's partial files.
+    pub(super) async fn run<T, F, Fut>(
+        &self,
+        mut operation: F,
+    ) -> crate::Result<T>
+    where
+        F: FnMut() -> Fut,
+        Fut: Future<Output = crate::Result<T>>,
+    {
+        let mut changes = self.changes.subscribe();
+        loop {
+            let state = *changes.borrow_and_update();
+            match state {
+                HostedTaskState::Paused => {
+                    changes.changed().await.map_err(|_| stopped())?;
+                    continue;
+                }
+                HostedTaskState::Canceling => return Err(stopped()),
+                _ => {}
+            }
+            let work = operation();
+            tokio::pin!(work);
+            loop {
+                tokio::select! {
+                    biased;
+                    changed = changes.changed() => {
+                        changed.map_err(|_| stopped())?;
+                        match self.state() {
+                            HostedTaskState::Paused => break,
+                            HostedTaskState::Canceling => return Err(stopped()),
+                            _ => {},
+                        }
+                    }
+                    result = &mut work => {
+                        match self.state() {
+                            HostedTaskState::Paused => break,
+                            HostedTaskState::Canceling => return Err(stopped()),
+                            _ => return result,
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+pub(super) struct Registration {
+    instance_id: String,
+    pub(super) control: Arc<Control>,
+}
+
+impl Registration {
+    pub(super) fn new(instance_id: &str) -> crate::Result<Self> {
+        use dashmap::mapref::entry::Entry;
+        let control = Arc::new(Control::new(instance_id));
+        match CONTROLS.entry(instance_id.to_owned()) {
+            Entry::Occupied(_) => {
+                return Err(super::invalid("此实例已有整合包下载任务"));
+            }
+            Entry::Vacant(entry) => {
+                entry.insert(control.clone());
+            }
+        }
+        Ok(Self {
+            instance_id: instance_id.to_owned(),
+            control,
+        })
+    }
+}
+
+impl Drop for Registration {
+    fn drop(&mut self) {
+        CONTROLS.remove_if(&self.instance_id, |_, value| {
+            Arc::ptr_eq(value, &self.control)
+        });
+    }
+}
+
+fn lookup(instance_id: &str) -> crate::Result<Arc<Control>> {
+    CONTROLS
+        .get(instance_id)
+        .map(|entry| entry.value().clone())
+        .ok_or_else(|| super::invalid("整合包下载任务已结束，请重试"))
+}
+
+pub async fn pause(instance_id: &str) -> crate::Result<()> {
+    lookup(instance_id)?.pause()
+}
+pub async fn resume(instance_id: &str) -> crate::Result<()> {
+    lookup(instance_id)?.resume()
+}
+pub async fn cancel(instance_id: &str) -> crate::Result<()> {
+    lookup(instance_id)?.cancel()
+}
+
+/// Stop the batch on its first error so stalled peers cannot hide failure.
+pub(super) async fn collect_downloads<S>(downloads: S) -> crate::Result<u64>
+where
+    S: Stream<Item = crate::Result<u64>>,
+{
+    tokio::pin!(downloads);
+    let mut total = 0;
+    while let Some(result) = downloads.next().await {
+        total += result?;
+    }
+    Ok(total)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use futures::FutureExt;
+    use std::sync::{
+        Arc,
+        atomic::{AtomicUsize, Ordering},
+    };
+    use tokio::sync::{Notify, Semaphore};
+
+    struct TransferGuard(Arc<AtomicUsize>, Arc<Notify>);
+
+    impl Drop for TransferGuard {
+        fn drop(&mut self) {
+            self.0.fetch_add(1, Ordering::SeqCst);
+            self.1.notify_one();
+        }
+    }
+
+    #[tokio::test]
+    async fn pause_drops_live_transfers_and_resume_restarts_before_stop() {
+        let control = Arc::new(Control::new("pause-resume-test"));
+        let starts = Arc::new(Semaphore::new(0));
+        let drops = Arc::new(AtomicUsize::new(0));
+        let dropped = Arc::new(Notify::new());
+        let task = {
+            let control = control.clone();
+            let starts = starts.clone();
+            let drops = drops.clone();
+            let dropped = dropped.clone();
+            tokio::spawn(async move {
+                control
+                    .run(|| {
+                        let guard =
+                            TransferGuard(drops.clone(), dropped.clone());
+                        starts.add_permits(1);
+                        async move {
+                            let _guard = guard;
+                            std::future::pending::<crate::Result<()>>().await
+                        }
+                    })
+                    .await
+            })
+        };
+        starts.acquire().await.unwrap().forget();
+        control.pause().unwrap();
+        dropped.notified().await;
+        assert_eq!(drops.load(Ordering::SeqCst), 1);
+        assert_eq!(control.state(), HostedTaskState::Paused);
+        control.resume().unwrap();
+        starts.acquire().await.unwrap().forget();
+        control.cancel().unwrap();
+        let result = task.await.unwrap();
+        assert!(result.unwrap_err().to_string().contains("停止"));
+        assert_eq!(drops.load(Ordering::SeqCst), 2);
+    }
+
+    #[tokio::test]
+    async fn stopping_an_already_paused_task_never_starts_a_transfer() {
+        let control = Arc::new(Control::new("paused-stop-test"));
+        control.pause().unwrap();
+        let task = {
+            let control = control.clone();
+            tokio::spawn(async move {
+                control
+                    .run(|| async {
+                        panic!("paused work was polled");
+                        Ok::<(), crate::Error>(())
+                    })
+                    .await
+            })
+        };
+        control.cancel().unwrap();
+        assert!(task.await.unwrap().is_err());
+    }
+
+    #[test]
+    fn finalization_rejects_pause_and_stop() {
+        let control = Control::new("finalization-test");
+        control.begin_finalizing().unwrap();
+        assert_eq!(control.state(), HostedTaskState::Finalizing);
+        assert!(control.pause().is_err());
+        assert!(control.cancel().is_err());
+    }
+
+    #[test]
+    fn pause_and_finalization_have_only_one_winner() {
+        for _ in 0..32 {
+            let control = Arc::new(Control::new("finalization-race-test"));
+            let barrier = Arc::new(std::sync::Barrier::new(2));
+            let task = {
+                let control = control.clone();
+                let barrier = barrier.clone();
+                std::thread::spawn(move || {
+                    barrier.wait();
+                    control.pause().is_ok()
+                })
+            };
+            barrier.wait();
+            let finalized = control.begin_finalizing().is_ok();
+            assert_ne!(finalized, task.join().unwrap());
+        }
+    }
+
+    #[tokio::test]
+    async fn first_failure_drops_stalled_peer_downloads() {
+        let drops = Arc::new(AtomicUsize::new(0));
+        let guard = TransferGuard(drops.clone(), Arc::new(Notify::new()));
+        let downloads = futures::stream::iter(vec![
+            async move {
+                let _guard = guard;
+                std::future::pending::<crate::Result<u64>>().await
+            }
+            .boxed(),
+            async { Err(super::super::invalid("failed file")) }.boxed(),
+        ])
+        .buffer_unordered(2);
+        let result = collect_downloads(downloads).await;
+        assert!(result.unwrap_err().to_string().contains("failed file"));
+        assert_eq!(drops.load(Ordering::SeqCst), 1);
+    }
+
+    #[test]
+    fn registration_is_unique_and_released_on_drop() {
+        let id = uuid::Uuid::new_v4().to_string();
+        let registration = Registration::new(&id).unwrap();
+        assert!(Registration::new(&id).is_err());
+        drop(registration);
+        assert!(Registration::new(&id).is_ok());
+    }
+}

packages/app-lib/src/api/pack/hosted/progress.rs

@@ -59,6 +59,9 @@ impl PackProgress {
                 instance_id: instance_id.to_owned(),
                 instance_name: name.to_owned(),
                 error: None,
+                state: super::HostedTaskState::Running,
+                can_pause: true,
+                can_cancel: true,
             },
             1.0,
             "正在获取整合包信息",

packages/app-lib/src/api/pack/hosted/tagged.rs

@@ -681,7 +681,7 @@ pub(super) async fn download(
         set_loading(&bar, 0, file.size, "等待下载")?;
         work.push((file, url, object, bar));
     }
-    let results =
+    control::collect_downloads(
         stream::iter(work.into_iter().map(|(file, url, object, bar)| {
             let current = &current;
             let state = &state;
@@ -740,10 +740,7 @@ pub(super) async fn download(
                 result
             }
         }))
-        .buffer_unordered(concurrency)
-        .collect::<Vec<_>>()
-        .await;
-    results
-        .into_iter()
-        .try_fold(0, |sum, result| Ok(sum + result?))
+        .buffer_unordered(concurrency),
+    )
+    .await
 }

packages/app-lib/src/api/pack/install_from.rs

@@ -20,7 +20,7 @@ use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 use std::future::Future;
 
-use std::path::{Component, Path, PathBuf};
+use std::path::{Path, PathBuf};
 use std::pin::Pin;
 
 use zip::ZipArchive;
@@ -320,23 +320,13 @@ pub(crate) async fn generate_pack_from_version_id_with_reporter(
                 "Specified version has no files".to_string(),
             )
         })?;
-    let file_name = Path::new(&pack_file.filename);
-    if file_name.components().count() != 1
-        || !matches!(file_name.components().next(), Some(Component::Normal(_)))
-    {
-        return Err(crate::ErrorKind::InputError(
-            "Modrinth returned an invalid modpack file name".to_string(),
-        )
-        .into());
-    }
     let hash = pack_file.hashes.get("sha1");
-    let pack_path = state
-        .directories
-        .caches_dir()
-        .join("modpacks")
-        .join(&project_id)
-        .join(&version_id)
-        .join(file_name);
+    let pack_path = modpack_cache_path(
+        &state.directories.caches_dir().join("modpacks"),
+        &project_id,
+        &version_id,
+        &pack_file.filename,
+    )?;
 
     let details = InstallPhaseDetails::Modpack {
         project_id: Some(project_id.clone()),
@@ -517,8 +507,70 @@ pub(crate) async fn generate_pack_from_version_id_with_reporter(
     })
 }
 
-#[tracing::instrument]
+fn modpack_cache_path(
+    root: &Path,
+    project_id: &str,
+    version_id: &str,
+    filename: &str,
+) -> crate::Result<PathBuf> {
+    let mut path = root.to_path_buf();
+    for segment in [project_id, version_id, filename] {
+        if segment.contains('/') {
+            return Err(crate::ErrorKind::InputError(
+                "Invalid modpack cache path component".to_string(),
+            )
+            .into());
+        }
+        path = crate::util::io::safe_relative_join(&path, segment)?;
+    }
+    Ok(path)
+}
 
+#[cfg(test)]
+mod cache_path_tests {
+    use super::modpack_cache_path;
+    use std::path::Path;
+
+    #[test]
+    fn cache_components_cannot_escape_their_directories() {
+        let root = Path::new("modpacks");
+        assert_eq!(
+            modpack_cache_path(root, "project", "version", "pack.mrpack")
+                .unwrap(),
+            root.join("project/version/pack.mrpack")
+        );
+        for malicious in [
+            "../outside",
+            "nested/name",
+            r"..\outside",
+            "C:/outside",
+            "C:outside",
+            r"\\server\share",
+            ".",
+            "",
+            "NUL",
+            "pack.mrpack:stream",
+            ".. ",
+        ] {
+            for position in 0..3 {
+                let mut components = ["project", "version", "pack.mrpack"];
+                components[position] = malicious;
+                assert!(
+                    modpack_cache_path(
+                        root,
+                        components[0],
+                        components[1],
+                        components[2]
+                    )
+                    .is_err(),
+                    "{position}: {malicious:?}"
+                );
+            }
+        }
+    }
+}
+
+#[tracing::instrument]
 pub async fn generate_pack_from_file(
     path: PathBuf,
     instance_id: String,

packages/app-lib/src/api/pack/install_mrpack.rs

@@ -891,6 +891,12 @@ pub(crate) async fn install_zipped_mrpack_files_with_reporter(
         num_files,
         content_total_bytes,
     };
+    for file in &pack.files {
+        io::join_within_root(
+            &content_context.instance_full_path,
+            &content_context.resolve_install_path(file),
+        )?;
+    }
     let skipped_missing_content_paths = Arc::new(
         reporter
             .current_state()
@@ -1039,8 +1045,14 @@ pub(crate) async fn install_zipped_mrpack_files_with_reporter(
                 let project_size = project.file_size as u64;
                 let project_path =
                     content_context.resolve_install_path(&project);
-                let target_path =
-                    content_context.instance_full_path.join(&project_path);
+                let target_path = io::join_within_root(
+                    &content_context.instance_full_path,
+                    &project_path,
+                ).map_err(|error| RequiredFileFailure::new(
+                    manifest_index,
+                    &project_path,
+                    &error.to_string(),
+                ))?;
                 let context =
                     InstallErrorContext::new("download modpack content file")
                         .maybe_project_id(
@@ -1451,7 +1463,10 @@ pub(crate) async fn install_zipped_mrpack_files_with_reporter(
                     entry_name: filename.to_string(),
                     crc32: file.crc32(),
                     uncompressed_size: file.uncompressed_size(),
-                    target_path: instance_full_path.join(&relative_path),
+                    target_path: io::safe_relative_join(
+                        &instance_full_path,
+                        &relative_path,
+                    )?,
                     relative_path,
                 })
             })
@@ -1739,6 +1754,7 @@ fn override_relative_path(
                 "Invalid modpack override path: {relative}"
             ))
         })?;
+    io::safe_relative_join(Path::new(""), relative.as_str())?;
     Ok(relative.as_str().to_string())
 }
 
@@ -1885,7 +1901,11 @@ pub async fn remove_all_related_files(
     // Iterate over all Modrinth project file paths in the json, and remove them
     // (There should be few, but this removes any files the .mrpack intended as Modrinth projects but were unrecognized)
     for file in pack.files {
-        match io::remove_file(instance_full_path.join(file.path.as_str())).await
+        match io::remove_file(io::safe_relative_join(
+            &instance_full_path,
+            file.path.as_str(),
+        )?)
+        .await
         {
             Ok(_) => (),
             Err(err) if err.kind() == ErrorKind::NotFound => (),
@@ -1904,23 +1924,14 @@ pub async fn remove_all_related_files(
 
     for file in override_file_entries {
         let entry_name = file.filename().as_str().unwrap();
-        let entry_name =
-            entry_name.strip_prefix(&archive_base).unwrap_or(entry_name);
         let relative_override_file_path =
-            SafeRelativeUtf8UnixPathBuf::try_from(entry_name.to_string())?;
-        let relative_override_file_path = relative_override_file_path
-            .strip_prefix("overrides")
-            .or_else(|_| relative_override_file_path.strip_prefix("client-overrides"))
-            .map_err(|_| {
-                crate::Error::from(crate::ErrorKind::OtherError(
-                    format!("Failed to strip override prefix from override file path: {relative_override_file_path}")
-                ))
-            })?;
+            override_relative_path(entry_name, &archive_base)?;
 
         // Remove this file if a corresponding one exists in the filesystem
-        match io::remove_file(
-            instance_full_path.join(relative_override_file_path.as_str()),
-        )
+        match io::remove_file(io::safe_relative_join(
+            &instance_full_path,
+            &relative_override_file_path,
+        )?)
         .await
         {
             Ok(_) => (),
@@ -1939,6 +1950,35 @@ mod tests {
     use async_zip::{Compression, ZipEntryBuilder};
     use std::sync::Mutex as StdMutex;
 
+    #[test]
+    fn override_paths_reject_portable_traversal_and_windows_aliases() {
+        for prefix in ["overrides/", "client-overrides/"] {
+            assert_eq!(
+                override_relative_path(
+                    &format!("{prefix}config/example.toml"),
+                    ""
+                )
+                .unwrap(),
+                "config/example.toml"
+            );
+            for relative in [
+                "../outside",
+                "config/.. /outside",
+                "config/file:stream",
+                "C:/outside",
+                "C:outside",
+                "config/NUL",
+                "config/file.",
+            ] {
+                assert!(
+                    override_relative_path(&format!("{prefix}{relative}"), "")
+                        .is_err(),
+                    "{prefix}{relative}"
+                );
+            }
+        }
+    }
+
     fn override_spec(index: usize, target: &str) -> OverrideExtractionSpec {
         OverrideExtractionSpec {
             index,

packages/app-lib/src/api/servers/files.rs

@@ -12,6 +12,8 @@ use crate::{ErrorKind, Result};
 
 use super::manifest::server_path;
 
+pub(super) use crate::util::io::safe_relative_join;
+
 const DOWNLOAD_PROGRESS_STEP: u64 = 512 * 1024;
 
 pub async fn read_file(server_id: &str, file: &str) -> Result<String> {
@@ -124,44 +126,7 @@ pub(super) async fn download_to_dir(
 
 async fn resolve_server_file(server_id: &str, file: &str) -> Result<PathBuf> {
     let dir = server_path(server_id).await?;
-    safe_join(&dir, file)
-}
-
-fn safe_join(dir: &Path, file: &str) -> Result<PathBuf> {
-    if file.is_empty()
-        || file.contains('\\')
-        || file.starts_with('/')
-        || file
-            .split('/')
-            .any(|segment| segment == ".." || segment.is_empty())
-    {
-        return Err(ErrorKind::InputError(format!(
-            "Invalid file name: {file}"
-        ))
-        .as_error());
-    }
-    Ok(dir.join(file))
-}
-
-/// Joins a relative path that may contain `/` separators but never escapes the
-/// server directory (no `..`, empty segments, or absolute/Windows roots).
-pub(super) fn safe_relative_join(dir: &Path, rel: &str) -> Result<PathBuf> {
-    let is_windows_drive_root =
-        rel.as_bytes().get(1).is_some_and(|byte| *byte == b':')
-            && rel.as_bytes().first().is_some_and(u8::is_ascii_alphabetic);
-    if rel.is_empty()
-        || Path::new(rel).is_absolute()
-        || is_windows_drive_root
-        || rel.starts_with('/')
-        || rel.starts_with('\\')
-        || rel.split(['/', '\\']).any(|segment| {
-            segment.is_empty() || segment == ".." || segment == "."
-        })
-    {
-        return Err(ErrorKind::InputError(format!("Invalid file path: {rel}"))
-            .as_error());
-    }
-    Ok(dir.join(rel))
+    safe_relative_join(&dir, file)
 }
 
 #[cfg(test)]
@@ -169,13 +134,34 @@ mod tests {
     use super::*;
 
     #[test]
-    fn safe_join_rejects_traversal() {
+    fn safe_relative_join_rejects_unsafe_paths() {
         let dir = Path::new("/tmp/servers/a");
-        assert!(safe_join(dir, "server.properties").is_ok());
-        assert!(safe_join(dir, "../secret").is_err());
-        assert!(safe_join(dir, "/etc/passwd").is_err());
-        assert!(safe_join(dir, "a//b").is_err());
-        assert!(safe_join(dir, "").is_err());
+        for path in [
+            "../secret",
+            "mods/../../secret",
+            r"..\secret",
+            r"mods/..\../secret",
+            "/etc/passwd",
+            "C:/windows/system32",
+            r"C:\windows\system32",
+            "C:secret",
+            r"\\server\share\secret",
+            r"\secret",
+            r"\\?\C:\secret",
+            "a//b",
+            "a/./b",
+            ".",
+            "",
+            "mods/.. /secret",
+            "mods/secret.",
+            "mods/secret ",
+            "mods/mod.jar:payload",
+            "NUL/secret",
+            "mods/CON.jar",
+            "mods/mod\0.jar",
+        ] {
+            assert!(safe_relative_join(dir, path).is_err(), "{path:?}");
+        }
     }
 
     #[test]

packages/app-lib/src/api/servers/forge.rs

@@ -14,7 +14,7 @@ use crate::event::emit::emit_server;
 use crate::util::io::IOError;
 use crate::{ErrorKind, Result};
 
-use super::files::download_to_dir;
+use super::files::{download_to_dir, safe_relative_join};
 use super::manifest::{
     InstallState, read_manifest, server_path, write_manifest,
 };
@@ -41,6 +41,7 @@ pub async fn install_forge(
     drop(manifest);
 
     let installer_name = format!("forge-{mc_version}-{build}-installer.jar");
+    let installer_path = safe_relative_join(&dir, &installer_name)?;
     let installer_url =
         format!("{FORGE_MAVEN}/{mc_version}-{build}/{installer_name}");
 
@@ -52,7 +53,6 @@ pub async fn install_forge(
     download_to_dir(server_id, &dir, &installer_url, &installer_name, None)
         .await?;
 
-    let installer_path = dir.join(&installer_name);
     let java = java_path.clone().unwrap_or_else(|| "java".to_string());
 
     log(server_id, "Running Forge installer (this may take a while)").await?;

packages/app-lib/src/api/servers/lifecycle.rs

@@ -18,6 +18,7 @@ use crate::state::{clear_log_buffer, get_log_buffer, push_log_line};
 use crate::util::io::IOError;
 use crate::{ErrorKind, Result};
 
+use super::files::safe_relative_join;
 use super::logs::{
     analyze_exit_reason, stream_server_output, stream_server_pty_output,
     tail_server_log_file,
@@ -131,7 +132,7 @@ async fn start_inner(
         forge_launch_args(&dir)?
     } else {
         let jar_name = resolve_jar_name(&manifest);
-        let jar_path = dir.join(&jar_name);
+        let jar_path = safe_relative_join(&dir, &jar_name)?;
         if !jar_path.exists() {
             return Err(ErrorKind::LauncherError(format!(
                 "Server jar not found: {jar_name}. Download the server files first."
@@ -275,9 +276,11 @@ async fn start_inner(
     // so these lines stop the console from looking frozen.
     let loader_first_run =
         matches!(manifest.server_type.as_str(), "fabric" | "quilt")
-            && !dir
-                .join(format!("{}-server-launch.jar", manifest.server_type))
-                .exists();
+            && !safe_relative_join(
+                &dir,
+                &format!("{}-server-launch.jar", manifest.server_type),
+            )?
+            .exists();
 
     log_server_step(
         server_id,

packages/app-lib/src/api/servers/manage.rs

@@ -7,6 +7,7 @@ use crate::state::remove_log_buffer;
 use crate::util::io::{self, IOError};
 use crate::{ErrorKind, Result, State};
 
+use super::files::safe_relative_join;
 use super::lifecycle::is_running;
 use super::manifest::{
     ServerInfo, ServerManifest, build_server_info, read_manifest,
@@ -72,7 +73,7 @@ pub async fn create(
     let state = State::get().await?;
     let id = Uuid::new_v4().to_string();
     let dir_name = format!("{}-{}", sanitize_folder_name(name), &id[..8]);
-    let dir = state.directories.servers_dir().join(&dir_name);
+    let dir = safe_relative_join(&state.directories.servers_dir(), &dir_name)?;
     io::create_dir_all(&dir).await?;
 
     let manifest = ServerManifest {

packages/app-lib/src/api/servers/manifest.rs

@@ -118,7 +118,7 @@ pub(super) async fn server_path(server_id: &str) -> Result<PathBuf> {
         .as_error());
     }
     let state = State::get().await?;
-    let path = state.directories.server_dir(server_id);
+    let path = state.directories.server_dir(server_id)?;
     if !path.is_dir() {
         return Err(ErrorKind::InputError(format!(
             "Unknown server: {server_id}"

packages/app-lib/src/api/servers/modpack.rs

@@ -33,7 +33,7 @@ use crate::util::fetch::{
 use crate::util::io::IOError;
 use crate::{ErrorKind, Result};
 
-use super::files::download_to_dir;
+use super::files::{download_to_dir, safe_relative_join};
 use super::manifest::{
     InstallState, ModpackInfo, read_manifest, server_path, write_manifest,
 };
@@ -92,10 +92,52 @@ struct MrpackFile {
     env: Option<MrpackEnv>,
     #[serde(default)]
     downloads: Vec<String>,
-    #[serde(default)]
+    #[serde(default, rename = "fileSize")]
     file_size: Option<u64>,
 }
 
+impl MrpackFile {
+    fn integrity(&self) -> Result<Integrity> {
+        let sha1 = self.hashes.get("sha1").cloned();
+        let sha512 = self.hashes.get("sha512").cloned();
+        if sha1.is_none() && sha512.is_none() {
+            return Err(ErrorKind::InputError(format!(
+                "Modpack file {} is missing a SHA-1 or SHA-512 checksum",
+                self.path
+            ))
+            .as_error());
+        }
+        for (hash, length) in [(&sha1, 40), (&sha512, 128)] {
+            if let Some(hash) = hash
+                && (hash.len() != length
+                    || !hash.bytes().all(|byte| byte.is_ascii_hexdigit()))
+            {
+                return Err(ErrorKind::InputError(format!(
+                    "Modpack file {} has an invalid checksum",
+                    self.path
+                ))
+                .as_error());
+            }
+        }
+        Ok(Integrity {
+            sha1,
+            sha512,
+            size: self.file_size,
+            ..Integrity::default()
+        })
+    }
+}
+
+/// Validate the entire index before starting concurrent downloads, including
+/// entries excluded from server installation but fetched for metadata.
+fn validate_index(index: &MrpackIndex, dir: &Path) -> Result<()> {
+    for file in &index.files {
+        safe_relative_join(dir, &file.path)?;
+        file.integrity()?;
+    }
+    Ok(())
+}
+
 #[derive(Deserialize, Clone)]
 struct MrpackEnv {
     #[serde(default)]
@@ -272,7 +314,7 @@ async fn run_modpack_install(
         &state,
         mrpack_url,
         &dir.join(MRPACK_FILENAME),
-        mrpack_sha1.map(str::to_string),
+        mrpack_sha1.map(Integrity::sha1).unwrap_or_default(),
         ResourceClass::Modpack,
         AggregateProgress::new(0),
     )
@@ -282,6 +324,7 @@ async fn run_modpack_install(
     let manifest_entry = find_manifest_entry(&archive_path).await?;
     let base_folder = base_folder(&manifest_entry);
     let index = parse_index(&archive_path, &manifest_entry).await?;
+    validate_index(&index, dir)?;
 
     let (installable_files, excluded_files): (
         Vec<&MrpackFile>,
@@ -310,19 +353,19 @@ async fn run_modpack_install(
     )
     .await?;
 
-    let files: Vec<(String, String, Option<String>, u64)> = installable_files
+    let files: Vec<(String, String, Integrity, u64)> = installable_files
         .iter()
         .filter_map(|file| {
             file.downloads.first().map(|url| {
-                (
+                Ok((
                     file.path.clone(),
                     url.clone(),
-                    file.hashes.get("sha1").cloned(),
+                    file.integrity()?,
                     file.file_size.unwrap_or(0),
-                )
+                ))
             })
         })
-        .collect();
+        .collect::<Result<_>>()?;
 
     let progress = AggregateProgress::new(total_bytes);
     let state_ref = state.clone();
@@ -336,14 +379,14 @@ async fn run_modpack_install(
         0.0,
         num_files,
         None,
-        move |(path, url, sha1, size)| {
+        move |(path, url, integrity, size)| {
             let server_id = server_id_ref.clone();
             let dir = dir_ref.clone();
             let state = state_ref.clone();
             let progress = progress.clone();
             async move {
                 log(&server_id, &format!("Downloading {path}")).await?;
-                let destination = dir.join(&path);
+                let destination = safe_relative_join(&dir, &path)?;
                 if let Some(parent) = destination.parent() {
                     crate::util::io::create_dir_all(parent).await?;
                 }
@@ -352,7 +395,7 @@ async fn run_modpack_install(
                     &state,
                     &url,
                     &destination,
-                    sha1,
+                    integrity,
                     ResourceClass::Modpack,
                     progress.clone(),
                 )
@@ -446,7 +489,7 @@ async fn download_icon(dir: &Path, icon_url: &str) -> Result<PathBuf> {
             )
         })
         .unwrap_or_else(|| "png".to_string());
-    let destination = dir.join(format!("icon.{extension}"));
+    let destination = safe_relative_join(dir, &format!("icon.{extension}"))?;
 
     let client = reqwest::Client::builder()
         .user_agent(crate::launcher_user_agent())
@@ -476,15 +519,13 @@ async fn download_with_engine(
     state: &State,
     url: &str,
     destination: &Path,
-    sha1: Option<String>,
+    integrity: Integrity,
     resource: ResourceClass,
     progress: AggregateProgress,
 ) -> Result<()> {
-    let mut request = DownloadRequest::new(url, resource);
-    if let Some(sha1) = &sha1 {
-        request = request.with_integrity(Integrity::sha1(sha1.clone()));
-    }
-    request = request.with_segmented_download(true);
+    let request = DownloadRequest::new(url, resource)
+        .with_integrity(integrity)
+        .with_segmented_download(true);
 
     let server_id = server_id.to_string();
     let progress = progress.clone();
@@ -579,7 +620,7 @@ async fn fetch_excluded_mod_ids(
     state: &State,
     excluded_files: &[&MrpackFile],
 ) -> Result<HashSet<String>> {
-    let candidates: Vec<(String, String, Option<String>)> = excluded_files
+    let candidates: Vec<(String, String, Integrity)> = excluded_files
         .iter()
         .filter_map(|file| {
             let path = file.path.replace('\\', "/");
@@ -589,14 +630,14 @@ async fn fetch_excluded_mod_ids(
                 return None;
             }
             file.downloads.first().map(|url| {
-                (
+                Ok((
                     path.rsplit('/').next().unwrap_or(&path).to_string(),
                     url.clone(),
-                    file.hashes.get("sha1").cloned(),
-                )
+                    file.integrity()?,
+                ))
             })
         })
-        .collect();
+        .collect::<Result<_>>()?;
     if candidates.is_empty() {
         return Ok(HashSet::new());
     }
@@ -611,9 +652,10 @@ async fn fetch_excluded_mod_ids(
         ErrorKind::FSError(format!("Failed to create temporary directory: {e}"))
     })?;
     let mut unavailable = HashSet::new();
-    for (filename, url, sha1) in candidates {
-        let destination = temp_dir.path().join(&filename);
-        match download_metadata_jar(state, &url, &destination, sha1).await {
+    for (filename, url, integrity) in candidates {
+        let destination = safe_relative_join(temp_dir.path(), &filename)?;
+        match download_metadata_jar(state, &url, &destination, integrity).await
+        {
             Ok(()) => match read_mod_metadata(&destination) {
                 Some(metadata) => {
                     unavailable
@@ -647,12 +689,10 @@ async fn download_metadata_jar(
     state: &State,
     url: &str,
     destination: &Path,
-    sha1: Option<String>,
+    integrity: Integrity,
 ) -> Result<()> {
-    let mut request = DownloadRequest::new(url, ResourceClass::Modpack);
-    if let Some(sha1) = &sha1 {
-        request = request.with_integrity(Integrity::sha1(sha1.clone()));
-    }
+    let request = DownloadRequest::new(url, ResourceClass::Modpack)
+        .with_integrity(integrity);
     download_to_path(
         request,
         destination,
@@ -908,6 +948,122 @@ mod tests {
     use super::*;
     use std::io::Write;
 
+    fn index_file(path: &str) -> serde_json::Value {
+        serde_json::json!({
+            "path": path,
+            "hashes": { "sha1": "0".repeat(40) },
+            "downloads": ["https://example.com/mod.jar"],
+            "fileSize": 10
+        })
+    }
+
+    #[tokio::test]
+    async fn malicious_index_paths_fail_before_materializing_files() {
+        let temp = tempfile::tempdir().unwrap();
+        let server = temp.path().join("server");
+        std::fs::create_dir(&server).unwrap();
+        let outside = temp.path().join("outside.txt");
+        std::fs::write(&outside, "unchanged").unwrap();
+        let archive = temp.path().join("pack.mrpack");
+        for path in [
+            "../outside.txt",
+            "mods/../../outside.txt",
+            r"..\outside.txt",
+            r"mods/..\../outside.txt",
+            "/tmp/outside.txt",
+            "C:/outside.txt",
+            r"C:\outside.txt",
+            "C:outside.txt",
+            r"\\server\share\outside.txt",
+            r"\outside.txt",
+            r"\\?\C:\outside.txt",
+            "mods//mod.jar",
+            "mods/./mod.jar",
+            "mods/.. /outside.txt",
+            "mods/mod.jar:payload",
+            "NUL/outside.txt",
+            "mods/CON.jar",
+            "",
+        ] {
+            for environment in ["required", "unsupported"] {
+                let mut malicious = index_file(path);
+                // Filtered entries must also fail before any downloads.
+                malicious["env"] = serde_json::json!({"server": environment});
+                let contents = serde_json::json!({
+                    "files": [index_file("mods/valid.jar"), malicious]
+                })
+                .to_string();
+                create_jar(&archive, &[(MRPACK_MANIFEST_ENTRY, &contents)]);
+                let index =
+                    parse_index(&archive, MRPACK_MANIFEST_ENTRY).await.unwrap();
+                assert!(validate_index(&index, &server).is_err(), "{path:?}");
+                assert_eq!(
+                    std::fs::read_to_string(&outside).unwrap(),
+                    "unchanged"
+                );
+                assert_eq!(std::fs::read_dir(&server).unwrap().count(), 0);
+            }
+        }
+    }
+
+    #[test]
+    fn index_requires_valid_supported_checksums() {
+        for hashes in [
+            serde_json::json!({}),
+            serde_json::json!({"md5": "0".repeat(32)}),
+            serde_json::json!({"sha1": ""}),
+            serde_json::json!({"sha1": "0".repeat(39)}),
+            serde_json::json!({"sha512": "g".repeat(128)}),
+            serde_json::json!({"sha1": "invalid", "sha512": "0".repeat(128)}),
+        ] {
+            let mut file = index_file("mods/mod.jar");
+            file["hashes"] = hashes;
+            let index: MrpackIndex =
+                serde_json::from_value(serde_json::json!({"files": [file]}))
+                    .unwrap();
+            assert!(validate_index(&index, Path::new("server")).is_err());
+        }
+        let mut file = index_file("mods/mod.jar");
+        file.as_object_mut().unwrap().remove("hashes");
+        let index: MrpackIndex =
+            serde_json::from_value(serde_json::json!({"files": [file]}))
+                .unwrap();
+        assert!(validate_index(&index, Path::new("server")).is_err());
+    }
+
+    #[tokio::test]
+    async fn index_checksums_verify_file_contents() {
+        use crate::util::fetch::verify_file;
+        use sha2::{Digest, Sha512};
+
+        let temp = tempfile::tempdir().unwrap();
+        let target = temp.path().join("mod.jar");
+        let contents = b"verified mod";
+        std::fs::write(&target, contents).unwrap();
+        for hashes in [
+            serde_json::json!({"sha1": sha1_smol::Sha1::from(contents).digest().to_string()}),
+            serde_json::json!({"sha512": format!("{:x}", Sha512::digest(contents))}),
+            serde_json::json!({
+                "sha1": sha1_smol::Sha1::from(contents).digest().to_string(),
+                "sha512": format!("{:x}", Sha512::digest(contents))
+            }),
+        ] {
+            let mut file = index_file("mods/mod.jar");
+            file["hashes"] = hashes;
+            file["fileSize"] = serde_json::json!(contents.len());
+            let index: MrpackIndex =
+                serde_json::from_value(serde_json::json!({"files": [file]}))
+                    .unwrap();
+            validate_index(&index, temp.path()).unwrap();
+            let integrity = index.files[0].integrity().unwrap();
+            assert_eq!(integrity.size, Some(contents.len() as u64));
+            verify_file(&target, &integrity).await.unwrap();
+            std::fs::write(&target, b"tampered mod").unwrap();
+            assert!(verify_file(&target, &integrity).await.is_err());
+            std::fs::write(&target, contents).unwrap();
+        }
+    }
+
     #[test]
     fn server_only_files_are_installable() {
         let installable = MrpackFile {

packages/app-lib/src/event/emit.rs

@@ -232,8 +232,24 @@ pub fn fail_hosted_loading(key: &LoadingBarId, error: &str) {
         && let Some(mut bar) = state.loading_bars.get_mut(&key.0)
     {
         match &mut bar.bar_type {
-            LoadingBarType::HostedPackSync { error: failure, .. }
-            | LoadingBarType::HostedModDownload { error: failure, .. } => {
+            LoadingBarType::HostedPackSync {
+                error: failure,
+                state,
+                can_pause,
+                can_cancel,
+                ..
+            } => {
+                use crate::api::pack::hosted::HostedTaskState;
+                *state = if *state == HostedTaskState::Canceling {
+                    HostedTaskState::Canceled
+                } else {
+                    HostedTaskState::Failed
+                };
+                *can_pause = false;
+                *can_cancel = false;
+                *failure = Some(error.to_owned());
+            }
+            LoadingBarType::HostedModDownload { error: failure, .. } => {
                 *failure = Some(error.to_owned())
             }
             _ => {}
@@ -241,6 +257,67 @@ pub fn fail_hosted_loading(key: &LoadingBarId, error: &str) {
     }
 }
 
+/// Update the authoritative snapshot and notify observers even while all
+/// transfer futures are paused and no byte-progress event can be produced.
+pub fn set_hosted_loading_state(
+    instance_id: &str,
+    next: crate::api::pack::hosted::HostedTaskState,
+) {
+    use crate::api::pack::hosted::HostedTaskState;
+    let Ok(event_state) = crate::EventState::get() else {
+        return;
+    };
+    for mut bar in event_state.loading_bars.iter_mut() {
+        let LoadingBarType::HostedPackSync {
+            instance_id: id,
+            state,
+            can_pause,
+            can_cancel,
+            ..
+        } = &mut bar.bar_type
+        else {
+            continue;
+        };
+        if id != instance_id {
+            continue;
+        }
+        *state = next;
+        let controllable =
+            matches!(next, HostedTaskState::Running | HostedTaskState::Paused);
+        *can_pause = controllable;
+        *can_cancel = controllable;
+        match next {
+            HostedTaskState::Paused => {
+                bar.message = "已暂停，点击继续以恢复下载".into()
+            }
+            HostedTaskState::Canceling => {
+                bar.message = "正在停止整合包下载".into()
+            }
+            HostedTaskState::Running => {
+                bar.message = "正在继续整合包下载".into()
+            }
+            _ => {}
+        }
+        #[cfg(feature = "tauri")]
+        {
+            let _ = event_state.app.emit(
+                "loading",
+                LoadingPayload {
+                    fraction: Some(if bar.total > 0.0 {
+                        bar.current / bar.total
+                    } else {
+                        0.0
+                    }),
+                    message: bar.message.clone(),
+                    event: bar.bar_type.clone(),
+                    loader_uuid: bar.loading_bar_uuid,
+                    total: Some(bar.total),
+                },
+            );
+        }
+    }
+}
+
 // emit_warning(message)
 pub async fn emit_warning(message: &str) -> crate::Result<()> {
     #[cfg(feature = "tauri")]

packages/app-lib/src/event/mod.rs

@@ -142,6 +142,12 @@ pub enum LoadingBarType {
         instance_id: String,
         instance_name: String,
         error: Option<String>,
+        #[serde(default)]
+        state: crate::api::pack::hosted::HostedTaskState,
+        #[serde(default)]
+        can_pause: bool,
+        #[serde(default)]
+        can_cancel: bool,
     },
     HostedModDownload {
         instance_id: String,

packages/app-lib/src/state/dirs.rs

@@ -171,8 +171,8 @@ impl DirectoryInfo {
 
     /// Gets the directory of a managed dedicated server by id
     #[inline]
-    pub fn server_dir(&self, server_id: &str) -> PathBuf {
-        self.servers_dir().join(server_id)
+    pub fn server_dir(&self, server_id: &str) -> crate::Result<PathBuf> {
+        crate::util::io::safe_relative_join(&self.servers_dir(), server_id)
     }
 
     #[inline]
@@ -708,6 +708,28 @@ mod resolve_game_dir_tests {
         }
     }
 
+    #[test]
+    fn server_directory_rejects_absolute_and_windows_alias_paths() {
+        let dirs = dirs();
+        assert_eq!(
+            dirs.server_dir("server-1234").unwrap(),
+            dirs.servers_dir().join("server-1234")
+        );
+        for id in [
+            "../outside",
+            "C:outside",
+            "C:/outside",
+            r"\outside",
+            r"\\server\share",
+            ".",
+            "NUL",
+            "server:stream",
+            "server.",
+        ] {
+            assert!(dirs.server_dir(id).is_err(), "{id:?}");
+        }
+    }
+
     #[test]
     fn override_used_when_set_and_absolute() {
         let dirs = dirs();

packages/app-lib/src/util/fetch.rs

@@ -689,6 +689,46 @@ fn bounded_diagnostic_text(value: impl AsRef<str>, max_chars: usize) -> String {
     value.as_ref().chars().take(max_chars).collect()
 }
 
+fn sanitize_download_error_text(value: &str) -> String {
+    static URLS: LazyLock<regex::Regex> = LazyLock::new(|| {
+        regex::Regex::new(r"(?i)\b(?:https?|socks4a?|socks5h?)://[^\s]+")
+            .expect("download diagnostic URL pattern should be valid")
+    });
+    let sanitized = URLS.replace_all(value, |matched: &regex::Captures<'_>| {
+        let url = &matched[0];
+        // A malformed URL must not fall back to logging its userinfo. The
+        // normal helper also strips signed query strings and fragments.
+        if Url::parse(url).is_ok() {
+            sanitize_url_for_log(url)
+        } else {
+            "[redacted URL]".to_string()
+        }
+    });
+    bounded_diagnostic_text(sanitized, 256)
+}
+
+fn download_transport_error_detail(source: &reqwest::Error) -> String {
+    // reqwest's Display stops before the useful DNS/TLS/socket cause and can
+    // include a signed request URL. Walk only its underlying causes instead.
+    let mut details = Vec::new();
+    let mut cause = source.source();
+    while let Some(error) = cause {
+        let detail = sanitize_download_error_text(&error.to_string());
+        if details.last() != Some(&detail) {
+            details.push(detail);
+        }
+        if details.len() == 8 {
+            break;
+        }
+        cause = error.source();
+    }
+    if details.is_empty() {
+        sanitize_download_error_text(&source.to_string())
+    } else {
+        bounded_diagnostic_text(details.join(": "), 256)
+    }
+}
+
 fn download_error_category(error: &crate::Error) -> &'static str {
     match error.raw.as_ref() {
         ErrorKind::FetchError(source) => {
@@ -750,7 +790,16 @@ fn download_error_category(error: &crate::Error) -> &'static str {
 fn download_error_detail(error: &crate::Error) -> String {
     match error.raw.as_ref() {
         ErrorKind::FetchError(source) => source.status().map_or_else(
-            || format!("{} failure", download_error_category(error)),
+            || {
+                bounded_diagnostic_text(
+                    format!(
+                        "{} failure: {}",
+                        download_error_category(error),
+                        download_transport_error_detail(source)
+                    ),
+                    256,
+                )
+            },
             |status| format!("HTTP {}", status.as_u16()),
         ),
         ErrorKind::LabrinthError(error) => error.status.map_or_else(
@@ -929,8 +978,10 @@ fn add_starlight_direct_recovery_route(routes: &mut Vec<DownloadRoute>) {
         .filter(|route| {
             route.proxy == ProxyPolicy::System
                 && Url::parse(&route.url).ok().is_some_and(|url| {
-                    url.host_str() == Some("skin.starlight.cool")
-                        && url.path().starts_with("/starlight/mod/packs/files/")
+                    matches!(
+                        url.host_str(),
+                        Some("skin.starlight.cool" | "download.starlight.cool")
+                    ) && url.path().starts_with("/starlight/mod/packs/files/")
                 })
         })
         .cloned()
@@ -6308,7 +6359,9 @@ async fn download_to_path_inner(
                             source = route.source.as_str(),
                             attempt = attempts,
                             max_attempts = file_attempt_budget,
-                            error = %error,
+                            proxy = ?route.proxy,
+                            category = download_error_category(&error),
+                            error = %download_error_detail(&error),
                             "File download request failed; trying the next source or retry"
                         );
                         last_error = Some(error);
@@ -8857,18 +8910,86 @@ mod tests {
 
     #[test]
     fn starlight_hosted_files_have_a_direct_recovery_route() {
-        let mut routes = vec![official_route(
+        for url in [
             "https://skin.starlight.cool/starlight/mod/packs/files/release/hash",
-            ResourceClass::Modpack,
-        )];
+            "https://download.starlight.cool:20443/starlight/mod/packs/files/4/hash",
+        ] {
+            let mut routes = vec![official_route(url, ResourceClass::Modpack)];
+            add_starlight_direct_recovery_route(&mut routes);
+            add_starlight_direct_recovery_route(&mut routes);
 
-        add_starlight_direct_recovery_route(&mut routes);
+            assert_eq!(routes.len(), 2, "{url}");
+            assert_eq!(routes[0].proxy, ProxyPolicy::System);
+            assert_eq!(routes[1].proxy, ProxyPolicy::Direct);
+            assert_eq!(routes[0].url, routes[1].url);
+            assert!(routes[1].allow_sensitive_headers);
+        }
+    }
 
-        assert_eq!(routes.len(), 2);
-        assert_eq!(routes[0].proxy, ProxyPolicy::System);
-        assert_eq!(routes[1].proxy, ProxyPolicy::Direct);
-        assert_eq!(routes[0].url, routes[1].url);
-        assert!(routes[1].allow_sensitive_headers);
+    #[test]
+    fn starlight_direct_recovery_excludes_other_paths_and_lookalike_hosts() {
+        for url in [
+            "https://download.starlight.cool:20443/starlight/mod/packs",
+            "https://download.starlight.cool.evil.example/starlight/mod/packs/files/4/hash",
+            "https://evil.example/starlight/mod/packs/files/4/hash",
+            "https://skin.starlight.cool/yggdrasil",
+        ] {
+            let mut routes = vec![official_route(url, ResourceClass::Modpack)];
+            add_starlight_direct_recovery_route(&mut routes);
+            assert_eq!(routes.len(), 1, "{url}");
+        }
+    }
+
+    #[tokio::test]
+    async fn download_transport_diagnostic_preserves_causes_without_url_secrets()
+     {
+        let listener =
+            tokio::net::TcpListener::bind("127.0.0.1:0").await.unwrap();
+        let address = listener.local_addr().unwrap();
+        drop(listener);
+        let url = format!(
+            "http://username:password@{address}/file?token=secret#fragment"
+        );
+        let error: crate::Error = reqwest::Client::builder()
+            .no_proxy()
+            .build()
+            .unwrap()
+            .get(url)
+            .send()
+            .await
+            .unwrap_err()
+            .into();
+        let detail = download_error_detail(&error);
+        assert_eq!(download_error_category(&error), "connect");
+        assert!(detail.contains("connect"), "{detail}");
+        assert!(
+            detail.contains("tcp") || detail.contains("os error"),
+            "{detail}"
+        );
+        for secret in ["username", "password", "token", "secret", "fragment"] {
+            assert!(!detail.contains(secret), "{detail}");
+        }
+    }
+
+    #[test]
+    fn download_transport_diagnostic_scrubs_embedded_urls() {
+        let detail = sanitize_download_error_text(
+            "request https://username:password@example.com/file?token=secret#fragment failed: connecting to http://proxyuser:proxypass@proxy.example:8080/?key=proxysecret: connection refused",
+        );
+        assert!(detail.contains("https://example.com/file"), "{detail}");
+        assert!(detail.contains("http://proxy.example:8080/"), "{detail}");
+        assert!(detail.contains("connection refused"), "{detail}");
+        for secret in [
+            "username",
+            "password",
+            "token",
+            "secret",
+            "fragment",
+            "proxyuser",
+            "proxypass",
+        ] {
+            assert!(!detail.contains(secret), "{detail}");
+        }
     }
 
     #[test]

packages/app-lib/src/util/io.rs

@@ -60,6 +60,34 @@ pub(crate) fn io_error_with_lock_info(
     io_error_with_lock_info_for_paths(source, path, &[path])
 }
 
+/// Joins an untrusted Unix-style relative file path, rejecting traversal and
+/// Windows aliases on every platform. This is a lexical check, not a symlink
+/// sandbox.
+pub(crate) fn safe_relative_join(
+    root: &Path,
+    relative: &str,
+) -> crate::Result<PathBuf> {
+    path_util::SafeRelativeUtf8UnixPathBuf::try_from(relative.to_string())
+        .map_err(|error| {
+            crate::ErrorKind::InputError(format!(
+                "Invalid file path {relative}: {error}"
+            ))
+        })?;
+    if relative.split('/').any(|segment| {
+        segment.is_empty()
+            || segment == "."
+            || segment.ends_with(['.', ' '])
+            || segment.contains(':')
+            || segment.chars().any(char::is_control)
+    }) {
+        return Err(crate::ErrorKind::InputError(format!(
+            "Invalid file path: {relative}"
+        ))
+        .into());
+    }
+    Ok(root.join(relative))
+}
+
 /// Join a user-provided relative path onto `root`, rejecting traversal.
 pub(crate) fn join_within_root(
     root: &Path,
@@ -95,7 +123,7 @@ pub(crate) fn join_within_root(
         )
         .into());
     }
-    Ok(root.join(safe))
+    safe_relative_join(root, &safe.to_string_lossy().replace('\\', "/"))
 }
 
 pub(crate) fn io_error_with_lock_info_for_paths(
@@ -895,6 +923,39 @@ mod windows_sharing_violation_tests {
     }
 }
 
+#[cfg(test)]
+mod path_join_tests {
+    use super::*;
+
+    #[test]
+    fn join_within_root_uses_portable_path_validation() {
+        let root = Path::new("root");
+        assert_eq!(
+            join_within_root(root, r"config\example.toml").unwrap(),
+            root.join("config/example.toml")
+        );
+        assert_eq!(
+            join_within_root(root, "./config/./example.toml").unwrap(),
+            root.join("config/example.toml")
+        );
+        for relative in [
+            "../outside",
+            r"..\outside",
+            "/outside",
+            "C:/outside",
+            "C:outside",
+            r"\\server\share",
+            "config/.. /outside",
+            "config/file:stream",
+            "config/NUL",
+            "config/file.",
+            "config/file\0",
+        ] {
+            assert!(join_within_root(root, relative).is_err(), "{relative:?}");
+        }
+    }
+}
+
 #[cfg(test)]
 mod copy_dir_tests {
     use super::*;

scripts/axolotl/i18n-check.mjs

@@ -1,5 +1,6 @@
 import { readFile } from 'node:fs/promises'
 import { parse, TYPE } from '@formatjs/icu-messageformat-parser'
+import { collectSkinSiteMessages } from './skin-site-messages.mjs'
 
 const localePairs = [
 	[
@@ -10,6 +11,22 @@ const localePairs = [
 ]
 
 const failures = []
+const skinSiteCatalogs = Object.fromEntries(
+	await Promise.all(
+		['en-US', 'zh-CN'].map(async (locale) => [
+			locale,
+			JSON.parse(await readFile(`apps/app-frontend/src/locales/${locale}/index.json`, 'utf8')),
+		]),
+	),
+)
+for (const { id, file } of collectSkinSiteMessages()) {
+	for (const locale of ['en-US', 'zh-CN']) {
+		const catalogPath = `apps/app-frontend/src/locales/${locale}/index.json`
+		const catalog = skinSiteCatalogs[locale]
+		if (!catalog[id]?.message)
+			failures.push(`${catalogPath}: missing source message ${id} (${file})`)
+	}
+}
 const allowedUntranslatedMessages = new Set([
 	'Chaos Cubed',
 	'MINECON Earth 2017',

scripts/axolotl/publish-skin-site.mjs

@@ -0,0 +1,229 @@
+import { randomUUID } from 'node:crypto'
+import { open, stat } from 'node:fs/promises'
+import path from 'node:path'
+import { pathToFileURL } from 'node:url'
+
+export async function publishSkinSite({
+	archivePath,
+	tag,
+	token,
+	baseUrl = 'https://skin.starlight.cool',
+	fetchImpl = fetch,
+	sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms)),
+	now = Date.now,
+	timeoutMs = 30 * 60 * 1000,
+	pollIntervalMs = 2000,
+	log = console.log,
+}) {
+	if (!token) throw new Error('SKIN_SITE_CI_UPLOAD_TOKEN is required to publish to the skin site')
+	if (!archivePath || !/^v?\d+\.\d+\.\d+(?:-[0-9A-Za-z.-]+)?$/.test(tag ?? '')) {
+		throw new Error('Expected a complete update ZIP and a semantic version tag')
+	}
+	const version = tag.replace(/^v/, '')
+	const url = new URL(baseUrl)
+	if (url.protocol !== 'https:' || url.username || url.password) {
+		throw new Error('SKIN_SITE_URL must be an HTTPS URL without credentials')
+	}
+	const { size } = await stat(archivePath)
+	if (!archivePath.toLowerCase().endsWith('.zip') || size < 1 || size > 4 * 1024 ** 3) {
+		throw new Error('Expected a nonempty complete update ZIP no larger than 4 GiB')
+	}
+	const deadline = now() + timeoutMs
+	function remainingTime() {
+		const remaining = deadline - now()
+		if (remaining <= 0) throw new Error('Skin site publication timed out')
+		return remaining
+	}
+	async function request(route, { method = 'GET', body, chunk = false } = {}) {
+		const attempts = chunk ? 3 : 1
+		for (let attempt = 0; attempt < attempts; attempt++) {
+			const requestTimeout = Math.min(120_000, remainingTime())
+			let response
+			try {
+				response = await fetchImpl(`${baseUrl.replace(/\/$/, '')}/starlight/${route}`, {
+					method,
+					headers: {
+						Accept: 'application/json',
+						Authorization: `Bearer ${token}`,
+						...(body && !chunk ? { 'Content-Type': 'application/json' } : {}),
+					},
+					body: body && !chunk ? JSON.stringify(body) : body,
+					signal: AbortSignal.timeout(requestTimeout),
+					redirect: 'error',
+				})
+			} catch {
+				if (attempt + 1 === attempts)
+					throw new Error(`Skin site ${route}: network request failed or timed out`)
+				await sleep(500 * (attempt + 1))
+				continue
+			}
+			if (!response.ok) {
+				const details = await response.json().catch(() => null)
+				if ((response.status === 429 || response.status >= 500) && attempt + 1 < attempts) {
+					await sleep(500 * (attempt + 1))
+					continue
+				}
+				throw new Error(
+					`Skin site ${route}: HTTP ${response.status}${typeof details?.errorMessage === 'string' ? ` - ${details.errorMessage.slice(0, 1000)}` : ''}`,
+				)
+			}
+			let result
+			try {
+				result = await response.json()
+			} catch {
+				throw new Error(`Skin site ${route}: invalid JSON response`)
+			}
+			if (result?.success === false || result?.error || !result?.payload) {
+				throw new Error(
+					`Skin site ${route}: ${result?.errorMessage || 'request was rejected or payload is missing'}`,
+				)
+			}
+			return result.payload
+		}
+	}
+
+	let status = await request('launcher/admin/uploads', {
+		method: 'POST',
+		body: {
+			uploadId: randomUUID(),
+			filename: path.basename(archivePath),
+			size,
+			forceUpdate: false,
+		},
+	})
+	if (typeof status.id !== 'string' || !status.id)
+		throw new Error('Skin site returned an invalid upload ID')
+	const uploadRoute = `launcher/admin/uploads/${encodeURIComponent(status.id)}`
+	log(`Skin site upload ${status.id}: ${size} bytes`)
+	const file = await open(archivePath, 'r')
+	try {
+		for (;;) {
+			remainingTime()
+			if (status.state === 'ready') {
+				const release = status.release
+				if (!Number.isSafeInteger(release?.id) || release.id <= 0 || release.version !== version) {
+					throw new Error(
+						`Skin site returned an invalid release or a version other than ${version}`,
+					)
+				}
+				const activated = await request(`launcher/admin/${release.id}/activate`, { method: 'POST' })
+				if (
+					activated.id !== release.id ||
+					activated.version !== version ||
+					activated.active !== true
+				) {
+					throw new Error(`Skin site did not confirm activation of ${version}`)
+				}
+				log(`Skin site release ${version} published (id ${release.id})`)
+				return activated
+			}
+			if (status.state === 'failed' || status.state === 'cancelled') {
+				throw new Error(
+					`Skin site archive processing ${status.state}: ${status.errorMessage || 'no error details'}`,
+				)
+			}
+			if (status.state === 'processing') {
+				await sleep(Math.min(pollIntervalMs, remainingTime()))
+				status = await request(uploadRoute)
+				continue
+			}
+			if (
+				status.state !== 'uploading' ||
+				status.size !== size ||
+				!Number.isSafeInteger(status.chunkSize) ||
+				status.chunkSize < 1 ||
+				status.chunkSize > 64 * 1024 ** 2 ||
+				!Number.isSafeInteger(status.received) ||
+				status.received < 0 ||
+				status.received > size ||
+				!Array.isArray(status.receivedChunks)
+			) {
+				throw new Error('Skin site returned invalid upload status or chunk size')
+			}
+			const count = Math.ceil(size / status.chunkSize)
+			if (
+				status.receivedChunks.some(
+					(index) => !Number.isSafeInteger(index) || index < 0 || index >= count,
+				)
+			) {
+				throw new Error('Skin site returned invalid received chunk indices')
+			}
+			const received = new Set(status.receivedChunks)
+			const missing = Array.from({ length: count }, (_, index) => index).filter(
+				(index) => !received.has(index),
+			)
+			if (!missing.length) {
+				if (status.received !== size)
+					throw new Error('Skin site received byte count does not match the archive')
+				status = await request(`${uploadRoute}/complete`, { method: 'POST' })
+				continue
+			}
+			const chunkSize = status.chunkSize
+			const concurrency = Math.min(
+				Number.isSafeInteger(status.uploadConcurrency) && status.uploadConcurrency > 0
+					? status.uploadConcurrency
+					: 1,
+				6,
+				missing.length,
+			)
+			let cursor = 0
+			let uploadError
+			async function worker() {
+				try {
+					while (!uploadError && cursor < missing.length) {
+						remainingTime()
+						const index = missing[cursor++]
+						const start = index * chunkSize
+						const bytes = Buffer.alloc(Math.min(chunkSize, size - start))
+						let offset = 0
+						while (offset < bytes.length) {
+							const { bytesRead } = await file.read(
+								bytes,
+								offset,
+								bytes.length - offset,
+								start + offset,
+							)
+							if (!bytesRead) throw new Error('Update archive changed or ended during upload')
+							offset += bytesRead
+						}
+						const form = new FormData()
+						form.append('file', new Blob([bytes]), 'chunk.bin')
+						await request(`${uploadRoute}/chunks/${index}`, {
+							method: 'POST',
+							body: form,
+							chunk: true,
+						})
+					}
+				} catch (error) {
+					uploadError ??= error
+				}
+			}
+			await Promise.all(Array.from({ length: concurrency }, worker))
+			if (uploadError) throw uploadError
+			status = await request(uploadRoute)
+			log(`Skin site uploaded ${status.received}/${size} bytes`)
+		}
+	} finally {
+		await file.close()
+	}
+}
+
+if (process.argv[1] && import.meta.url === pathToFileURL(path.resolve(process.argv[1])).href) {
+	try {
+		await publishSkinSite({
+			archivePath: process.argv[2],
+			tag: process.argv[3],
+			token: process.env.SKIN_SITE_TOKEN,
+			baseUrl: process.env.SKIN_SITE_URL || 'https://skin.starlight.cool',
+		})
+	} catch (error) {
+		const message = String(error.message).replaceAll(
+			process.env.SKIN_SITE_TOKEN || '\0',
+			'[redacted]',
+		)
+		console.error(
+			`::error::${message.replaceAll('%', '%25').replaceAll('\r', '%0D').replaceAll('\n', '%0A')}`,
+		)
+		process.exitCode = 1
+	}
+}

scripts/axolotl/publish-skin-site.test.mjs

@@ -0,0 +1,186 @@
+import assert from 'node:assert/strict'
+import { mkdtemp, writeFile, rm } from 'node:fs/promises'
+import { tmpdir } from 'node:os'
+import path from 'node:path'
+import test from 'node:test'
+import { spawnSync } from 'node:child_process'
+import { publishSkinSite } from './publish-skin-site.mjs'
+
+async function fixture(t) {
+	const directory = await mkdtemp(path.join(tmpdir(), 'skin-site-publish-'))
+	t.after(() => rm(directory, { recursive: true, force: true }))
+	const archivePath = path.join(directory, 'Starlight_Launcher_1.0.2-beta10_skin-site-update.zip')
+	const bytes = Buffer.from('a small archive split into several chunks')
+	await writeFile(archivePath, bytes)
+	return { archivePath, bytes }
+}
+
+function apiFixture(bytes, options = {}) {
+	const chunks = new Map()
+	const events = []
+	const release = { id: 17, version: '1.0.2-beta10', active: false }
+	let state = 'uploading'
+	let failedOnce = false
+	if (options.resume) chunks.set(0, bytes.subarray(0, 8))
+	const status = () => ({
+		id: 'session-1',
+		chunkSize: 8,
+		size: bytes.length,
+		received: [...chunks.values()].reduce((total, part) => total + part.length, 0),
+		receivedChunks: [...chunks.keys()],
+		uploadConcurrency: 3,
+		state,
+		...(state === 'ready' ? { release } : {}),
+		...(state === 'failed' ? { errorMessage: 'Invalid archive manifest' } : {}),
+	})
+	// The frontend derives success from HTTP status; the wire envelope only needs payload.
+	const reply = (payload) => Response.json({ payload })
+	return {
+		chunks,
+		events,
+		fetch: async (url, init) => {
+			assert.equal(init.headers.Authorization, 'Bearer test-token')
+			const route = new URL(url).pathname.replace('/starlight/', '')
+			events.push(route)
+			if (route === 'launcher/admin/uploads') {
+				assert.equal(JSON.parse(init.body).size, bytes.length)
+				assert.equal(JSON.parse(init.body).forceUpdate, false)
+				return reply({ ...status(), ...(options.invalidChunkSize ? { chunkSize: 0 } : {}) })
+			}
+			if (route.includes('/chunks/')) {
+				if (options.rejectChunks) return new Response('too large', { status: 413 })
+				if (options.retryChunk && !failedOnce) {
+					failedOnce = true
+					return new Response('temporary failure', { status: 503 })
+				}
+				const index = Number(route.split('/').at(-1))
+				const file = init.body.get('file')
+				assert.equal(file.name, 'chunk.bin')
+				chunks.set(index, Buffer.from(await file.arrayBuffer()))
+				return reply(status())
+			}
+			if (route.endsWith('/complete')) {
+				assert.deepEqual(
+					Buffer.concat([...chunks].sort(([a], [b]) => a - b).map(([, part]) => part)),
+					bytes,
+				)
+				state = 'processing'
+				return reply(status())
+			}
+			if (route.endsWith('/activate')) {
+				assert.equal(state, 'ready')
+				return options.activationFailure
+					? Response.json({ success: false, errorMessage: 'Activation denied' })
+					: reply({ ...release, active: true })
+			}
+			if (route === 'launcher/admin/uploads/session-1') {
+				if (state === 'processing' && !options.stuck)
+					state = options.processingFailure ? 'failed' : 'ready'
+				return reply({
+					...status(),
+					...(options.wrongVersion && state === 'ready'
+						? { release: { ...release, version: '1.0.2-beta9' } }
+						: {}),
+				})
+			}
+			throw new Error(`Unexpected route ${route}`)
+		},
+	}
+}
+
+function settings(archivePath, api) {
+	return {
+		archivePath,
+		tag: 'v1.0.2-beta10',
+		token: 'test-token',
+		baseUrl: 'https://skin.example',
+		fetchImpl: api.fetch,
+		pollIntervalMs: 1,
+		sleep: async () => {},
+		log: () => {},
+	}
+}
+
+test('uploads exact bounded chunks, retries temporary errors, then completes and activates', async (t) => {
+	const { archivePath, bytes } = await fixture(t)
+	const api = apiFixture(bytes, { retryChunk: true })
+	const result = await publishSkinSite(settings(archivePath, api))
+	assert.equal(result.active, true)
+	assert.equal(api.chunks.size, Math.ceil(bytes.length / 8))
+	assert.ok([...api.chunks.values()].every((part) => part.length <= 8))
+	assert.equal(api.events.at(-1), 'launcher/admin/17/activate')
+})
+
+for (const [name, options, error] of [
+	['HTTP upload rejection', { rejectChunks: true }, /413/],
+	['archive processing failure', { processingFailure: true }, /Invalid archive manifest/],
+	['application-level activation failure', { activationFailure: true }, /Activation denied/],
+	['invalid server chunk size', { invalidChunkSize: true }, /invalid upload status/],
+	['mismatched release version', { wrongVersion: true }, /version other than/],
+]) {
+	test(`fails explicitly on ${name}`, async (t) => {
+		const { archivePath, bytes } = await fixture(t)
+		const api = apiFixture(bytes, options)
+		await assert.rejects(publishSkinSite(settings(archivePath, api)), error)
+		if (!options.activationFailure)
+			assert.ok(!api.events.some((event) => event.endsWith('/activate')))
+	})
+}
+
+test('fails instead of hanging when processing never finishes', async (t) => {
+	const { archivePath, bytes } = await fixture(t)
+	const api = apiFixture(bytes, { stuck: true })
+	let now = 0
+	await assert.rejects(
+		publishSkinSite({
+			...settings(archivePath, api),
+			timeoutMs: 10,
+			now: () => now,
+			sleep: async () => {
+				now += 5
+			},
+		}),
+		/timed out/i,
+	)
+})
+
+test('missing credentials fail before any network request', async (t) => {
+	const { archivePath } = await fixture(t)
+	await assert.rejects(
+		publishSkinSite({
+			...settings(archivePath, { fetch: () => assert.fail('Unexpected network request') }),
+			token: '',
+		}),
+		/SKIN_SITE_CI_UPLOAD_TOKEN/,
+	)
+})
+
+test('resumes server-acknowledged chunks without uploading them again', async (t) => {
+	const { archivePath, bytes } = await fixture(t)
+	const api = apiFixture(bytes, { resume: true })
+	await publishSkinSite(settings(archivePath, api))
+	assert.ok(!api.events.some((event) => event.endsWith('/chunks/0')))
+})
+
+test('CLI emits a GitHub error and exits nonzero when credentials are missing', () => {
+	const result = spawnSync(
+		process.execPath,
+		['scripts/axolotl/publish-skin-site.mjs', 'missing.zip', 'v1.0.2-beta10'],
+		{ encoding: 'utf8', env: { ...process.env, SKIN_SITE_TOKEN: '' } },
+	)
+	assert.equal(result.status, 1)
+	assert.match(result.stderr, /::error::.*SKIN_SITE_CI_UPLOAD_TOKEN/)
+})
+
+test('reports structured server errors when creating the upload session fails', async (t) => {
+	const { archivePath } = await fixture(t)
+	await assert.rejects(
+		publishSkinSite(
+			settings(archivePath, {
+				fetch: async () =>
+					Response.json({ errorMessage: 'Upload storage unavailable' }, { status: 500 }),
+			}),
+		),
+		/HTTP 500 - Upload storage unavailable/,
+	)
+})

scripts/axolotl/skin-site-i18n.test.mjs

@@ -0,0 +1,36 @@
+import assert from 'node:assert/strict'
+import fs from 'node:fs'
+import test from 'node:test'
+
+import { collectSkinSiteMessages } from './skin-site-messages.mjs'
+
+test('all skin-site messages used in source exist in both release language catalogs', () => {
+	const messages = collectSkinSiteMessages()
+	assert.ok(messages.length > 100, 'The check must scan the actual UI')
+	for (const locale of ['en-US', 'zh-CN']) {
+		const catalog = JSON.parse(
+			fs.readFileSync(`apps/app-frontend/src/locales/${locale}/index.json`, 'utf8'),
+		)
+		const missing = messages.filter(({ id }) => !catalog[id]?.message)
+		assert.deepEqual(
+			missing.map(({ id }) => id),
+			[],
+			`${locale} has uncatalogued UI messages`,
+		)
+	}
+})
+
+test('Chinese login and announcement labels do not fall back to English', () => {
+	const catalog = JSON.parse(
+		fs.readFileSync('apps/app-frontend/src/locales/zh-CN/index.json', 'utf8'),
+	)
+	for (const id of [
+		'app.skin-site.login.title',
+		'app.skin-site.login.username',
+		'app.skin-site.login.password-hint',
+		'app.skin-site.home.announcements.title',
+		'app.skin-site.home.announcements.failed',
+	]) {
+		assert.match(catalog[id]?.message ?? '', /\p{Script=Han}/u, id)
+	}
+})

scripts/axolotl/skin-site-messages.mjs

@@ -0,0 +1,59 @@
+import fs from 'node:fs'
+import path from 'node:path'
+import { createRequire } from 'node:module'
+
+const require = createRequire(new URL('../../apps/app-frontend/package.json', import.meta.url))
+const ts = require('typescript')
+const { parse } = require('vue/compiler-sfc')
+
+/** Read the message IDs actually used by skin-site UI, including uncatalogued messages. */
+export function collectSkinSiteMessages(root = 'apps/app-frontend/src') {
+	const messages = new Map()
+	function walk(directory) {
+		for (const entry of fs.readdirSync(directory, { withFileTypes: true })) {
+			const file = path.join(directory, entry.name)
+			if (entry.isDirectory()) {
+				if (entry.name !== 'locales') walk(file)
+				continue
+			}
+			if (!/\.(vue|ts)$/.test(file) || file.endsWith('.test.ts')) continue
+			let source = fs.readFileSync(file, 'utf8')
+			if (file.endsWith('.vue')) {
+				const { descriptor } = parse(source)
+				source = [descriptor.script?.content, descriptor.scriptSetup?.content]
+					.filter(Boolean)
+					.join('\n')
+			}
+			const ast = ts.createSourceFile(`${file}.ts`, source, ts.ScriptTarget.Latest, true)
+			function visit(node) {
+				if (ts.isObjectLiteralExpression(node)) {
+					const properties = Object.fromEntries(
+						node.properties
+							.filter(ts.isPropertyAssignment)
+							.map((property) => [
+								property.name.getText(ast).replace(/^['"]|['"]$/g, ''),
+								property.initializer,
+							]),
+					)
+					if (
+						properties.id &&
+						properties.defaultMessage &&
+						ts.isStringLiteralLike(properties.id) &&
+						ts.isStringLiteralLike(properties.defaultMessage) &&
+						properties.id.text.startsWith('app.skin-site.')
+					) {
+						messages.set(properties.id.text, {
+							id: properties.id.text,
+							defaultMessage: properties.defaultMessage.text,
+							file,
+						})
+					}
+				}
+				ts.forEachChild(node, visit)
+			}
+			visit(ast)
+		}
+	}
+	walk(root)
+	return [...messages.values()]
+}