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import fs from 'node:fs';
import { promises as fsPromises } from 'node:fs';
import path from 'node:path';
import express from 'express';
import sanitize from 'sanitize-filename';
import { sync as writeFileAtomicSync, default as writeFileAtomic } from 'write-file-atomic';
import { color, tryParse } from '../util.js';
import { getFileNameValidationFunction } from '../middleware/validateFileName.js';
export const router = express.Router();
/**
* Warns if group data contains deprecated metadata keys and removes them.
* @param {object} groupData Group data object
*/
function warnOnGroupMetadata(groupData) {
if (typeof groupData !== 'object' || groupData === null) {
return;
}
['chat_metadata', 'past_metadata'].forEach(key => {
if (Object.hasOwn(groupData, key)) {
console.warn(color.yellow(`Group JSON data for "${groupData.id}" contains deprecated key "${key}".`));
delete groupData[key];
}
});
}
/**
* Migrates group metadata to include chat metadata for each group chat instead of the group itself.
* @param {import('../users.js').UserDirectoryList[]} userDirectories Listing of all users' directories
*/
export async function migrateGroupChatsMetadataFormat(userDirectories) {
for (const userDirs of userDirectories) {
try {
let anyDataMigrated = false;
const backupPath = path.join(userDirs.backups, '_group_metadata_update');
const groupFiles = await fsPromises.readdir(userDirs.groups, { withFileTypes: true });
const groupChatFiles = await fsPromises.readdir(userDirs.groupChats, { withFileTypes: true });
for (const groupFile of groupFiles) {
try {
const isJsonFile = groupFile.isFile() && path.extname(groupFile.name) === '.json';
if (!isJsonFile) {
continue;
}
const groupFilePath = path.join(userDirs.groups, groupFile.name);
const groupDataRaw = await fsPromises.readFile(groupFilePath, 'utf8');
const groupData = tryParse(groupDataRaw) || {};
const needsMigration = ['chat_metadata', 'past_metadata'].some(key => Object.hasOwn(groupData, key));
if (!needsMigration) {
continue;
}
if (!fs.existsSync(backupPath)){
await fsPromises.mkdir(backupPath, { recursive: true });
}
await fsPromises.copyFile(groupFilePath, path.join(backupPath, groupFile.name));
const allMetadata = {
...(groupData.past_metadata || {}),
[groupData.chat_id]: (groupData.chat_metadata || {}),
};
if (!Array.isArray(groupData.chats)) {
console.warn(color.yellow(`Group ${groupFile.name} has no chats array, skipping migration.`));
continue;
}
for (const chatId of groupData.chats) {
try {
const chatFileName = sanitize(`${chatId}.jsonl`);
const chatFileDirent = groupChatFiles.find(f => f.isFile() && f.name === chatFileName);
if (!chatFileDirent) {
console.warn(color.yellow(`Group chat file ${chatId} not found, skipping migration.`));
continue;
}
const chatFilePath = path.join(userDirs.groupChats, chatFileName);
const chatMetadata = allMetadata[chatId] || {};
const chatDataRaw = await fsPromises.readFile(chatFilePath, 'utf8');
const chatData = chatDataRaw.split('\n').filter(line => line.trim()).map(line => tryParse(line)).filter(Boolean);
const alreadyHasMetadata = chatData.length > 0 && Object.hasOwn(chatData[0], 'chat_metadata');
if (alreadyHasMetadata) {
console.log(color.yellow(`Group chat ${chatId} already has chat metadata, skipping update.`));
continue;
}
await fsPromises.copyFile(chatFilePath, path.join(backupPath, chatFileName));
const chatHeader = { chat_metadata: chatMetadata, user_name: 'unused', character_name: 'unused' };
const newChatData = [chatHeader, ...chatData];
const newChatDataRaw = newChatData.map(entry => JSON.stringify(entry)).join('\n');
await writeFileAtomic(chatFilePath, newChatDataRaw, 'utf8');
console.log(`Updated group chat data format for ${chatId}`);
anyDataMigrated = true;
} catch (chatError) {
console.error(color.red(`Could not update existing chat data for ${chatId}`), chatError);
}
}
delete groupData.chat_metadata;
delete groupData.past_metadata;
await writeFileAtomic(groupFilePath, JSON.stringify(groupData, null, 4), 'utf8');
console.log(`Migrated group chats metadata for group: ${groupData.id}`);
anyDataMigrated = true;
} catch (groupError) {
console.error(color.red(`Could not process group file ${groupFile.name}`), groupError);
}
}
if (anyDataMigrated) {
console.log(color.green(`Completed migration of group chats metadata for user at ${userDirs.root}`));
console.log(color.cyan(`Backups of modified files are located at ${backupPath}`));
}
} catch (directoryError) {
console.error(color.red(`Error migrating group chats metadata for user at ${userDirs.root}`), directoryError);
}
}
}
router.post('/all', (request, response) => {
const groups = [];
if (!fs.existsSync(request.user.directories.groups)) {
fs.mkdirSync(request.user.directories.groups);
}
const files = fs.readdirSync(request.user.directories.groups).filter(x => path.extname(x) === '.json');
const chats = fs.readdirSync(request.user.directories.groupChats).filter(x => path.extname(x) === '.jsonl');
files.forEach(function (file) {
try {
const filePath = path.join(request.user.directories.groups, file);
const fileContents = fs.readFileSync(filePath, 'utf8');
const group = JSON.parse(fileContents);
const groupStat = fs.statSync(filePath);
group['date_added'] = groupStat.birthtimeMs;
group['create_date'] = new Date(groupStat.birthtimeMs).toISOString();
let chat_size = 0;
let date_last_chat = 0;
if (Array.isArray(group.chats) && Array.isArray(chats)) {
for (const chat of chats) {
if (group.chats.includes(path.parse(chat).name)) {
const chatStat = fs.statSync(path.join(request.user.directories.groupChats, chat));
chat_size += chatStat.size;
date_last_chat = Math.max(date_last_chat, chatStat.mtimeMs);
}
}
}
group['date_last_chat'] = date_last_chat;
group['chat_size'] = chat_size;
groups.push(group);
}
catch (error) {
console.error(error);
}
});
return response.send(groups);
});
router.post('/create', (request, response) => {
if (!request.body) {
return response.sendStatus(400);
}
warnOnGroupMetadata(request.body);
const id = String(Date.now());
const groupMetadata = {
id: id,
name: request.body.name ?? 'New Group',
members: request.body.members ?? [],
avatar_url: request.body.avatar_url,
allow_self_responses: !!request.body.allow_self_responses,
activation_strategy: request.body.activation_strategy ?? 0,
generation_mode: request.body.generation_mode ?? 0,
disabled_members: request.body.disabled_members ?? [],
fav: request.body.fav,
chat_id: request.body.chat_id ?? id,
chats: request.body.chats ?? [id],
auto_mode_delay: request.body.auto_mode_delay ?? 5,
generation_mode_join_prefix: request.body.generation_mode_join_prefix ?? '',
generation_mode_join_suffix: request.body.generation_mode_join_suffix ?? '',
};
const pathToFile = path.join(request.user.directories.groups, sanitize(`${id}.json`));
const fileData = JSON.stringify(groupMetadata, null, 4);
if (!fs.existsSync(request.user.directories.groups)) {
fs.mkdirSync(request.user.directories.groups);
}
writeFileAtomicSync(pathToFile, fileData);
return response.send(groupMetadata);
});
router.post('/edit', getFileNameValidationFunction('id'), (request, response) => {
if (!request.body || !request.body.id) {
return response.sendStatus(400);
}
warnOnGroupMetadata(request.body);
const id = request.body.id;
const pathToFile = path.join(request.user.directories.groups, sanitize(`${id}.json`));
const fileData = JSON.stringify(request.body, null, 4);
writeFileAtomicSync(pathToFile, fileData);
return response.send({ ok: true });
});
router.post('/delete', getFileNameValidationFunction('id'), async (request, response) => {
if (!request.body || !request.body.id) {
return response.sendStatus(400);
}
const id = request.body.id;
const pathToGroup = path.join(request.user.directories.groups, sanitize(`${id}.json`));
try {
// Delete group chats
const group = JSON.parse(fs.readFileSync(pathToGroup, 'utf8'));
if (group && Array.isArray(group.chats)) {
for (const chat of group.chats) {
console.info('Deleting group chat', chat);
const pathToFile = path.join(request.user.directories.groupChats, sanitize(`${chat}.jsonl`));
if (fs.existsSync(pathToFile)) {
fs.unlinkSync(pathToFile);
}
}
}
} catch (error) {
console.error('Could not delete group chats. Clean them up manually.', error);
}
if (fs.existsSync(pathToGroup)) {
fs.unlinkSync(pathToGroup);
}
return response.send({ ok: true });
});
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