feat: 建立可选字体包协议与安全注册器

2026-07-31 20:36:22 +08:00
parent e5da699ea3
commit c76454be9d
14 changed files with 1083 additions and 4 deletions
@@ -0,0 +1,75 @@
+import { createHash } from "node:crypto";
+import { mkdir, writeFile } from "node:fs/promises";
+import { join } from "node:path";
+
+export function hash(content: Uint8Array | string) {
+  return createHash("sha256").update(content).digest("hex");
+}
+
+export async function writeFontPack(
+  root: string,
+  options: {
+    id?: string;
+    version?: string;
+    minimumAppVersion?: string;
+    maximumAppVersionExclusive?: string;
+    target?: string;
+    web?: Uint8Array;
+    docx?: Uint8Array;
+    corruptWebHash?: boolean;
+  } = {}
+) {
+  const id = options.id ?? "official-cjk";
+  const version = options.version ?? "1.0.0";
+  const directory = join(root, id, version);
+  const web = options.web ?? new Uint8Array([1, 2, 3]);
+  const docx = options.docx ?? new Uint8Array([4, 5, 6, 7]);
+  const license = "SIL Open Font License 1.1";
+  await mkdir(join(directory, "fonts"), { recursive: true });
+  await writeFile(join(directory, "fonts", "serif.woff2"), web);
+  await writeFile(join(directory, "fonts", "serif.ttf"), docx);
+  await writeFile(join(directory, "OFL.txt"), license, "utf8");
+  const maximum = options.maximumAppVersionExclusive
+    ? { maximumAppVersionExclusive: options.maximumAppVersionExclusive }
+    : {};
+  await writeFile(
+    join(directory, "font-pack.json"),
+    JSON.stringify({
+      manifestVersion: 1,
+      id,
+      version,
+      name: "原生中文字体包",
+      description: "测试字体包",
+      license: "OFL-1.1",
+      licenseFile: "OFL.txt",
+      licenseSha256: hash(license),
+      licenseBytes: Buffer.byteLength(license),
+      compatibility: {
+        minimumAppVersion: options.minimumAppVersion ?? "0.6.0",
+        ...maximum
+      },
+      faces: [
+        {
+          id: "serif-regular",
+          targets: [options.target ?? "Mdpdf Fandol Song", "FandolSong"],
+          weight: 400,
+          style: "normal",
+          web: {
+            path: "fonts/serif.woff2",
+            format: "woff2",
+            bytes: web.byteLength,
+            sha256: options.corruptWebHash ? "0".repeat(64) : hash(web)
+          },
+          docx: {
+            path: "fonts/serif.ttf",
+            format: "truetype",
+            bytes: docx.byteLength,
+            sha256: hash(docx)
+          }
+        }
+      ]
+    }),
+    "utf8"
+  );
+  return directory;
+}