修复: 改用sqlite3替代better-sqlite3

backend/package.json

@@ -12,7 +12,7 @@
     "express": "^4.18.0",
     "sqlite3": "^5.1.0",
     "jsonwebtoken": "^9.0.0",
-    "multer": "^1.4.5",
+    "multer": "^1.4.5-lts.1",
     "bcrypt": "^5.1.0",
     "cors": "^2.8.5"
   },

backend/src/db.js

@@ -1,11 +1,12 @@
-// Simple SQLite database wrapper
-// In production, use better-sqlite3 or similar
+// Simple SQLite database wrapper using sqlite3
+const sqlite3 = require('sqlite3').verbose();
 
-const Database = require('better-sqlite3');
-const db = new Database('clouddisk.db');
+const dbPath = process.env.DB_PATH || './clouddisk.db';
+const db = new sqlite3.Database(dbPath);
 
 // Initialize tables
-db.exec(`
+db.serialize(() => {
+  db.run(`
     CREATE TABLE IF NOT EXISTS users (
       id INTEGER PRIMARY KEY AUTOINCREMENT,
       username TEXT UNIQUE NOT NULL,
@@ -15,8 +16,10 @@ db.exec(`
       storage_limit INTEGER DEFAULT 10737418240,
       created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
       updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
-  );
+    )
+  `);
   
+  db.run(`
     CREATE TABLE IF NOT EXISTS files (
       id INTEGER PRIMARY KEY AUTOINCREMENT,
       user_id INTEGER NOT NULL,
@@ -32,8 +35,10 @@ db.exec(`
       deleted_at DATETIME,
       FOREIGN KEY (user_id) REFERENCES users(id),
       FOREIGN KEY (parent_id) REFERENCES files(id)
-  );
+    )
+  `);
   
+  db.run(`
     CREATE TABLE IF NOT EXISTS shares (
       id INTEGER PRIMARY KEY AUTOINCREMENT,
       file_id INTEGER NOT NULL,
@@ -43,23 +48,10 @@ db.exec(`
       view_count INTEGER DEFAULT 0,
       created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
       FOREIGN KEY (file_id) REFERENCES files(id)
-  );
-  
-  CREATE TABLE IF NOT EXISTS sync_logs (
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
-    user_id INTEGER NOT NULL,
-    file_id INTEGER,
-    action TEXT,
-    status TEXT,
-    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
-    FOREIGN KEY (user_id) REFERENCES users(id)
-  );
+    )
   `);
   
-module.exports = db;
-
-// Sync tables (for reference - would be in migration in production)
-db.exec(`
+  db.run(`
     CREATE TABLE IF NOT EXISTS sync_status (
       id INTEGER PRIMARY KEY AUTOINCREMENT,
       user_id INTEGER NOT NULL,
@@ -68,5 +60,27 @@ db.exec(`
       total_files INTEGER DEFAULT 0,
       synced_files INTEGER DEFAULT 0,
       FOREIGN KEY (user_id) REFERENCES users(id)
-  );
+    )
   `);
+});
+
+// Wrapper functions to match the old API
+const query = (sql, params = []) => {
+  return new Promise((resolve, reject) => {
+    db.all(sql, params, (err, rows) => {
+      if (err) reject(err);
+      else resolve(rows);
+    });
+  });
+};
+
+const run = (sql, params = []) => {
+  return new Promise((resolve, reject) => {
+    db.run(sql, params, function(err) {
+      if (err) reject(err);
+      else resolve({ lastInsertRowid: this.lastID, changes: this.changes });
+    });
+  });
+};
+
+module.exports = { query, run, db };