Files
Amily-Databin/index.js
2025-12-23 17:47:44 +08:00

126 lines
4.9 KiB
JavaScript

const express = require('express');
const fs = require('fs').promises;
const path = require('path');
// These are now passed by the loader, not required directly.
// This makes the plugin more robust and independent.
// const { ... } = require('../../../public/script.js');
const extensionName = "Amily-Databin";
const extensionVersion = "0.0.1-a";
let sourceTypes = {}; // Will be loaded from sourcetype.json
/**
* Main plugin initialization function.
* SillyTavern's loader will call this function and provide context.
* @param {object} context - The context provided by SillyTavern's loader.
* @param {string} context.plugin_data_path - The base path for plugin data.
* @param {object} context.plugin_name_to_folder_name - A map of plugin names to folder names.
*/
async function initializePlugin(context) {
const { plugin_data_path, plugin_name_to_folder_name } = context;
const storageBasePath = path.join(plugin_data_path, 'cc.amily49.amily-databin');
/**
* Builds a safe file path and prevents path traversal attacks.
*/
function getSafeFilePath(source, objName, file) {
if (typeof source !== 'string' && typeof source !== 'number' || typeof objName !== 'string' || typeof file !== 'string') {
return null;
}
const sanitize = (part) => String(part).replace(/\.\./g, '').replace(/[/\]/g, '');
const safeSource = sanitize(source);
const safeObjName = sanitize(objName);
const safeFile = sanitize(file);
if (!safeSource || !safeObjName || !safeFile) return null;
return path.join(storageBasePath, safeSource, safeObjName, safeFile);
}
// #region Server-side Business Logic per SourceType
async function defaultSaveStrategy(filePath, data) {
await fs.mkdir(path.dirname(filePath), { recursive: true });
await fs.writeFile(filePath, JSON.stringify(data, null, 2), 'utf8');
}
// #endregion
try {
// Load source types from the file on startup.
const sourceTypesRaw = await fs.readFile(path.join(__dirname, 'sourcetype.json'), 'utf8');
sourceTypes = JSON.parse(sourceTypesRaw);
await fs.mkdir(storageBasePath, { recursive: true });
} catch (error) {
console.error(`[${extensionName}] Critical startup error:`, error);
return null; // Return null to indicate failure
}
const router = express.Router();
router.get('/sourcetype', (req, res) => res.json(sourceTypes));
router.get('/data', async (req, res) => {
const filePath = getSafeFilePath(req.query.source, req.query.objName, req.query.file);
if (!filePath) return res.status(400).send("Invalid parameters.");
try {
const fileContent = await fs.readFile(filePath, 'utf8');
res.json(JSON.parse(fileContent));
} catch (error) {
if (error.code === 'ENOENT') return res.status(404).send('Not found.');
res.status(500).send('Internal Server Error');
}
});
router.post('/data', async (req, res) => {
const { source, objName, file, data } = req.body;
const filePath = getSafeFilePath(source, objName, file);
if (!filePath || data === undefined) return res.status(400).send("Invalid or incomplete parameters.");
const sourceType = parseInt(source, 10);
try {
switch (sourceType) {
case sourceTypes.CHAT_LOG:
case sourceTypes.CHARACTER_CARD:
case sourceTypes.WORLD_BOOK:
await defaultSaveStrategy(filePath, data);
res.status(200).send('Data saved successfully.');
break;
default:
res.status(501).send(`Save handler for source type '${sourceType}' is not implemented.`);
break;
}
} catch (error) {
console.error(`[${extensionName}] Error in POST /data for source ${sourceType}:`, error);
res.status(500).send('Internal Server Error');
}
});
router.delete('/data', async (req, res) => {
const filePath = getSafeFilePath(req.query.source, req.query.objName, req.query.file);
if (!filePath) return res.status(400).send("Invalid parameters.");
try {
await fs.unlink(filePath);
res.status(200).send('Data deleted successfully.');
} catch (error) {
if (error.code === 'ENOENT') return res.status(200).send('Not found.');
res.status(500).send('Internal Server Error');
}
});
// Return the plugin definition object
return {
name: extensionName,
version: extensionVersion,
is_enabled: true,
folder_name: plugin_name_to_folder_name[extensionName],
router: router,
assets: ['client.js'],
};
}
// Export the main initialization function
module.exports = initializePlugin;