feat: 写了点后端

server/utils/checkUserData.ts

@@ -0,0 +1,22 @@
+import mkfileIfNotExist from "./mkfileIfNotExist"
+
+let checked = false
+
+/**
+ * 检查并完善userData的目录结构，若不存在密钥则生成随机的密钥
+ * @returns {void}
+ */
+const checkUserData = () => {
+    if (checked) return
+    checked = true
+    // console.log('check userData')
+    const dirList = [
+        './userData/',
+        './userData/db/',
+        './userData/md/',
+    ]
+    dirList.forEach(mkdirIfNotExist)
+    mkfileIfNotExist('./userData/key.txt', new Array(2048).fill(0).map(() => Math.floor(Math.random() * 16).toString(16)).join(''))
+}
+
+export default checkUserData

server/utils/mkdirIfNotExist.ts

@@ -0,0 +1,15 @@
+import fs from 'fs';
+
+export default function mkdirIfNotExists(dir: string | string[]): void {
+    if (typeof dir !== 'string') {
+        dir.forEach((d) => mkdirIfNotExists(d));
+        return;
+    }
+    if (!fs.existsSync(dir)) {
+        try {
+            fs.mkdirSync(dir, { recursive: true });
+        } catch (error) {
+            console.error(error)
+        }
+    }
+}

server/utils/mkfileIfNotExist.ts

@@ -0,0 +1,25 @@
+import fs from 'fs';
+import path from 'path';
+import mkdirIfNotExist from './mkdirIfNotExist';
+
+export default function mkfileIfNotExist(filePath: string | string[], content?: string): void {
+    content = content || '';
+    if (Array.isArray(filePath)) {
+        filePath.forEach((file) => mkfileIfNotExist(file, content));
+        return;
+    }
+    if (typeof filePath !== 'string') {
+        console.error('Invalid file path:', filePath);
+        return;
+    }
+    if (fs.existsSync(filePath)) {
+        return;
+    }
+    const dir = path.dirname(filePath);
+    mkdirIfNotExist(dir);
+    try {
+        fs.writeFileSync(filePath, content);
+    } catch (error) {
+        console.error('Error creating file:', error);
+    }
+}