fix: harden media and WebAssembly delivery

deploy/nginx.conf

@@ -1,6 +1,7 @@
 map $uri $toolbox_cache_control {
   default "no-cache";
   "~^/(?:.*/)?assets/.*-[A-Za-z0-9_-]{8,}\.[^/]+$" "public, max-age=31536000, immutable";
+  "~^/apps/[a-z0-9][a-z0-9-]*/vendor/ffmpeg/(?:0|[1-9][0-9]*)\.(?:0|[1-9][0-9]*)\.(?:0|[1-9][0-9]*)/(?:version\.json|(?:st|mt)/ffmpeg-core\.(?:js|wasm)|mt/ffmpeg-core\.worker\.js)$" "public, max-age=31536000, immutable";
 }
 
 server {
@@ -20,7 +21,7 @@ server {
   add_header Cross-Origin-Embedder-Policy "require-corp" always;
   add_header Cross-Origin-Resource-Policy "same-origin" always;
   add_header Permissions-Policy "camera=(), microphone=(), geolocation=(), payment=(), usb=()" always;
-  add_header Content-Security-Policy "default-src 'self'; base-uri 'self'; object-src 'none'; frame-ancestors 'none'; form-action 'self'; script-src 'self' 'wasm-unsafe-eval'; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; font-src 'self' data:; connect-src 'self'; worker-src 'self' blob:; manifest-src 'self'" always;
+  add_header Content-Security-Policy "default-src 'self'; base-uri 'self'; object-src 'none'; frame-ancestors 'none'; form-action 'self'; script-src 'self' 'wasm-unsafe-eval'; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; media-src 'self' blob:; font-src 'self' data:; connect-src 'self'; worker-src 'self' blob:; manifest-src 'self'" always;
   add_header Cache-Control $toolbox_cache_control always;
 
   gzip on;
@@ -32,7 +33,14 @@ server {
     try_files $uri =404;
   }
 
-  location ~* \.(?:css|js|mjs|wasm|woff2?|png|jpe?g|gif|webp|svg|ico|webmanifest)$ {
+  location ~* \.wasm$ {
+    types {
+      application/wasm wasm;
+    }
+    try_files $uri =404;
+  }
+
+  location ~* \.(?:css|js|mjs|woff2?|png|jpe?g|gif|webp|svg|ico|webmanifest)$ {
     try_files $uri =404;
   }
 

scripts/deployment.test.ts

@@ -4,10 +4,18 @@ import { describe, expect, it } from 'vitest';
 
 const projectRoot = process.cwd();
 const compose = readFileSync(path.join(projectRoot, 'compose.yaml'), 'utf8');
+const composeExample = readFileSync(
+  path.join(projectRoot, 'compose.example.yaml'),
+  'utf8'
+);
 const containerfile = readFileSync(
   path.join(projectRoot, 'Containerfile.release'),
   'utf8'
 );
+const environmentExample = readFileSync(
+  path.join(projectRoot, '.env.example'),
+  'utf8'
+);
 const nginxConfig = readFileSync(
   path.join(projectRoot, 'deploy', 'nginx.conf'),
   'utf8'
@@ -16,6 +24,23 @@ const releaseLock = JSON.parse(
   readFileSync(path.join(projectRoot, 'release', 'toolbox.lock.json'), 'utf8')
 ) as { releaseVersion: string };
 
+const immutableCacheControl = 'public, max-age=31536000, immutable';
+const immutableUriPatterns = Array.from(
+  nginxConfig.matchAll(
+    new RegExp(
+      `^\\s*"~([^"]+)"\\s+"${immutableCacheControl.replaceAll(
+        ', ',
+        ',\\s+'
+      )}";$`,
+      'gmu'
+    )
+  ),
+  (match) => new RegExp(match[1], 'u')
+);
+
+const isImmutable = (uri: string): boolean =>
+  immutableUriPatterns.some((pattern) => pattern.test(uri));
+
 describe('production deployment', () => {
   it('keeps the release version and checksum pins synchronized', () => {
     const containerVersion = containerfile.match(
@@ -30,10 +55,22 @@ describe('production deployment', () => {
     const composeChecksum = compose.match(
       /\$\{TOOLBOX_RELEASE_SHA256:-([a-f0-9]{64})\}/u
     )?.[1];
+    const environmentVersion = environmentExample.match(
+      /^TOOLBOX_RELEASE_VERSION=(\S+)$/mu
+    )?.[1];
+    const environmentChecksum = environmentExample.match(
+      /^TOOLBOX_RELEASE_SHA256=([a-f0-9]{64})$/mu
+    )?.[1];
+    const localImageVersion = composeExample.match(
+      /^\s+image: git\.add-ideas\.de\/zemion\/toolbox:(\S+)$/mu
+    )?.[1];
 
     expect(containerVersion).toBe(releaseLock.releaseVersion);
     expect(composeVersion).toBe(containerVersion);
     expect(composeChecksum).toBe(containerChecksum);
+    expect(environmentVersion).toBe(containerVersion);
+    expect(environmentChecksum).toBe(containerChecksum);
+    expect(localImageVersion).toBe(containerVersion);
   });
 
   it('verifies the release before extraction and retains a rootless final image', () => {
@@ -45,6 +82,11 @@ describe('production deployment', () => {
     expect(containerfile).toContain(
       'COPY --from=release --chown=101:101 /tmp/toolbox/'
     );
+    for (const app of ['pdf', 'xslt', 'onenote', 'av']) {
+      expect(containerfile).toContain(
+        `test -f /tmp/toolbox/apps/${app}/toolbox-app.json`
+      );
+    }
     expect(containerfile).toMatch(/\nUSER 101:101\nEXPOSE 8080\n/u);
   });
 
@@ -73,4 +115,56 @@ describe('production deployment', () => {
     );
     expect(nginxConfig).not.toMatch(/^\s*~[^\n]*\{\d/mu);
   });
+
+  it('caches only hashed assets and the versioned FFmpeg runtime immutably', () => {
+    expect(immutableUriPatterns).toHaveLength(2);
+
+    for (const uri of [
+      '/assets/index-Bp9nK_3a.js',
+      '/apps/av/vendor/ffmpeg/0.12.10/version.json',
+      '/apps/av/vendor/ffmpeg/0.12.10/st/ffmpeg-core.js',
+      '/apps/av/vendor/ffmpeg/0.12.10/st/ffmpeg-core.wasm',
+      '/apps/av/vendor/ffmpeg/0.12.10/mt/ffmpeg-core.js',
+      '/apps/av/vendor/ffmpeg/0.12.10/mt/ffmpeg-core.wasm',
+      '/apps/av/vendor/ffmpeg/0.12.10/mt/ffmpeg-core.worker.js',
+    ]) {
+      expect(isImmutable(uri), uri).toBe(true);
+    }
+
+    for (const uri of [
+      '/',
+      '/index.html',
+      '/SOURCE.md',
+      '/LICENSE',
+      '/toolbox.catalog.json',
+      '/toolbox.release.json',
+      '/apps/av/toolbox-app.json',
+      '/apps/av/THIRD_PARTY_NOTICES.md',
+      '/apps/av/vendor/ffmpeg/version.json',
+      '/apps/av/vendor/ffmpeg/latest/st/ffmpeg-core.wasm',
+      '/apps/av/vendor/ffmpeg/0.12/st/ffmpeg-core.wasm',
+      '/apps/av/vendor/ffmpeg/01.2.3/st/ffmpeg-core.wasm',
+      '/apps/av/vendor/ffmpeg/0.12.10/st/other.wasm',
+      '/apps/av/vendor/ffmpeg/0.12.10/mt/ffmpeg-core.worker.wasm',
+      '/apps/av/vendor/ffmpeg/0.12.10/ffmpeg-core.wasm',
+    ]) {
+      expect(isImmutable(uri), uri).toBe(false);
+    }
+  });
+
+  it('serves WebAssembly through an explicit MIME-mapped location', () => {
+    expect(nginxConfig).toMatch(
+      /location ~\* \\\.wasm\$\s*\{\s*types\s*\{\s*application\/wasm wasm;\s*\}\s*try_files \$uri =404;\s*\}/mu
+    );
+    expect(nginxConfig).not.toMatch(
+      /location ~\* [^\n]*\(\?:[^\n|)]*\bwasm\b[^\n)]*\)/u
+    );
+  });
+
+  it('allows same-origin WebAssembly workers and local blob media previews', () => {
+    expect(nginxConfig).toContain("script-src 'self' 'wasm-unsafe-eval'");
+    expect(nginxConfig).toContain("worker-src 'self' blob:");
+    expect(nginxConfig).toContain("media-src 'self' blob:");
+    expect(nginxConfig).not.toContain("'unsafe-eval'");
+  });
 });