Add recovery Excel export and automatic account detection

2026-08-05 11:40:29 +08:00
parent b081946752
commit 85110bbfce
15 changed files with 852 additions and 36 deletions
--- a/tests/recovery-workbook.test.mjs
+++ b/tests/recovery-workbook.test.mjs
@@ -0,0 +1,52 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+import { strFromU8, unzipSync } from "fflate";
+import { buildRecoveryWorkbook } from "../lib/recovery-workbook.ts";
+
+const tinyPng = Uint8Array.from([
+  0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a,
+  0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52,
+  0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01,
+]);
+
+test("creates an xlsx archive whose pictures are embedded in worksheet cells", () => {
+  const workbook = buildRecoveryWorkbook({
+    sheetName: "数据回收",
+    headers: ["序号", "标题", "原图", "笔记截图"],
+    columnWidths: [8, 24, 24, 24],
+    rows: [
+      {
+        cells: [1, "测试笔记", "见图", "见图"],
+        images: [
+          {
+            column: 2,
+            image: {
+              bytes: tinyPng,
+              contentType: "image/png",
+              width: 1,
+              height: 1,
+              description: "原图1",
+            },
+          },
+          {
+            column: 3,
+            image: {
+              bytes: tinyPng,
+              contentType: "image/png",
+              width: 1,
+              height: 1,
+              description: "发布截图",
+            },
+          },
+        ],
+      },
+    ],
+  });
+  const archive = unzipSync(workbook);
+
+  assert.ok(archive["xl/media/image1.png"]);
+  assert.ok(archive["xl/media/image2.png"]);
+  assert.match(strFromU8(archive["xl/worksheets/sheet1.xml"]), /<drawing r:id="rId1"\/>/);
+  assert.match(strFromU8(archive["xl/drawings/drawing1.xml"]), /oneCellAnchor/);
+  assert.match(strFromU8(archive["xl/drawings/_rels/drawing1.xml.rels"]), /image2\.png/);
+});