feat: 接入可选字体包同源渲染链

apps/server/src/app.ts

@@ -17,7 +17,8 @@ import {
   DocxThemeTokenService,
   createApplicationService,
   readDocxExportRuntimeLimits,
-  type ApplicationService
+  type ApplicationService,
+  type ApplicationServiceOptions
 } from "@md-to-pdf/application";
 import {
   PandocDocxConverter,
@@ -88,6 +89,7 @@ export interface BuildAppOptions {
     "getCapability" | "generate" | "close"
   >;
   docxMediaAdapter?: ServerDocxMediaCaptureAdapter;
+  fontPacks?: NonNullable<ApplicationServiceOptions["fontPacks"]>;
 }
 
 function milliseconds(value: number) {
@@ -161,7 +163,8 @@ export function buildApp(options: BuildAppOptions = {}) {
       bundledRoot: resolve(projectRoot, "themes"),
       localRoot:
         options.localThemeRoot ?? resolve(projectRoot, ".local", "themes"),
-      onWarning: (message) => app.log.warn(message)
+      onWarning: (message) => app.log.warn(message),
+      ...(options.fontPacks ? { fontPacks: options.fontPacks } : {})
     });
   const pdfGenerator =
     options.pdfGenerator ?? createPdfGenerator();
@@ -301,6 +304,44 @@ export function buildApp(options: BuildAppOptions = {}) {
     }
   );
 
+  app.get<{
+    Params: {
+      packId: string;
+      packVersion: string;
+      faceId: string;
+    };
+  }>(
+    "/api/font-packs/:packId/:packVersion/:faceId/web",
+    async (request, reply) => {
+      try {
+        const asset = await applicationService.getFontPackAsset(
+          request.params.packId,
+          request.params.packVersion,
+          request.params.faceId,
+          "web"
+        );
+        if (!asset) {
+          return reply.code(404).send({
+            error: "FONT_PACK_ASSET_NOT_FOUND",
+            message: "未找到指定字体包资源"
+          });
+        }
+        return reply
+          .header("content-type", asset.contentType)
+          .header("cache-control", "public, max-age=31536000, immutable")
+          .header("content-security-policy", "default-src 'none'; sandbox")
+          .header("x-content-type-options", "nosniff")
+          .header("etag", `\"${asset.sha256}\"`)
+          .send(asset.content);
+      } catch {
+        return reply.code(404).send({
+          error: "FONT_PACK_ASSET_NOT_FOUND",
+          message: "未找到指定字体包资源"
+        });
+      }
+    }
+  );
+
   app.post<{ Body: RenderRequestBody }>(
     "/api/render",
     async (request, reply) => {

apps/server/src/index.ts

@@ -2,9 +2,18 @@ import { buildApp } from "./app.js";
 
 const port = Number.parseInt(process.env.PORT ?? "3001", 10);
 const host = process.env.HOST ?? "0.0.0.0";
+const fontPackRoot = process.env.FONT_PACK_ROOT?.trim();
 const app = buildApp({
   prewarmPdfBrowser: true,
-  prewarmDocxRuntime: true
+  prewarmDocxRuntime: true,
+  ...(fontPackRoot
+    ? {
+        fontPacks: {
+          roots: [fontPackRoot],
+          appVersion: process.env.APP_VERSION ?? "0.6.0"
+        }
+      }
+    : {})
 });
 
 async function start() {