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server.js
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var compression = require('compression')
var express = require('express');
var app = express();
app.use(compression())
var fs = require('fs');
const readline = require('readline');
const open = require('open');
const uuid = require('uuid');
var rimraf = require("rimraf");
const multer = require("multer");
const https = require('https');
const http = require('http');
//const PNG = require('pngjs').PNG;
const extract = require('png-chunks-extract');
const encode = require('png-chunks-encode');
const PNGtext = require('png-chunk-text');
const ExifReader = require('exifreader');
const url = require('url');
function isUrl(str) {
try {
new URL(str);
return true;
} catch (err) {
return false;
}
}
const sharp = require('sharp');
sharp.cache(false);
const path = require('path');
const cookieParser = require('cookie-parser');
const crypto = require('crypto');
const ipaddr = require('ipaddr.js');
const json5 = require('json5');
var sanitize_filename = require("sanitize-filename");
const { TextEncoder, TextDecoder } = require('util');
const utf8Encode = new TextEncoder();
const utf8Decode = new TextDecoder('utf-8', { ignoreBOM: true });
const config = require(path.join(process.cwd(), './config.conf'));
const server_port = config.port;
const whitelist = config.whitelist;
const whitelistMode = config.whitelistMode;
let listenIp = config.listenIp || '127.0.0.1';
if(!whitelistMode || whitelist.length > 1){
listenIp = '0.0.0.0';
}
const autorun = config.autorun;
const characterFormat = config.characterFormat;
const charaCloudMode = config.charaCloudMode;
const charaCloudServer = config.charaCloudServer;
const connectionTimeoutMS = config.connectionTimeoutMS;
const csrf_token = config.csrf_token;
global.BETA_KEY;
var Client = require('node-rest-client').Client;
var client = new Client();
var api_server = "";//"http://127.0.0.1:5000";
//var server_port = 8000;
const api_novelai = "https://api.novelai.net";
const api_openai = "https://api.openai.com/v1";
const api_horde = "https://stablehorde.net/api";
var hordeActive = false;
var hordeQueue;
var hordeData = {};
var hordeError = null;
var hordeTicker = 0;
var response_get_story;
var response_generate;
var response_generate_novel;
var response_generate_openai;
var request_promt;
var response_promt;
var response_characloud_loadcard;
var characters = {};
var character_i = 0;
var response_create;
var response_edit;
var response_dw_bg;
var response_getstatus;
var response_getstatus_novel;
var response_getstatus_openai;
var response_getlastversion;
var api_key_novel;
var api_key_openai;
var api_url_openai;
var is_colab = false;
var charactersPath = 'public/characters/';
var worldPath = 'public/worlds/';
var chatsPath = 'public/chats/';
var UserAvatarsPath = 'public/User Avatars/';
var roomsPath = 'public/rooms/';
if (is_colab && process.env.googledrive == 2){
charactersPath = '/content/drive/MyDrive/TavernAI/characters/';
chatsPath = '/content/drive/MyDrive/TavernAI/chats/';
UserAvatarsPath = '/content/drive/MyDrive/TavernAI/User Avatars/';
}
const jsonParser = express.json({limit: '100mb'});
const urlencodedParser = express.urlencoded({extended: true, limit: '100mb'});
// CSRF Protection //
const doubleCsrf = require('csrf-csrf').doubleCsrf;
const CSRF_SECRET = crypto.randomBytes(8).toString('hex');
const COOKIES_SECRET = crypto.randomBytes(8).toString('hex');
const { invalidCsrfTokenError, generateToken, doubleCsrfProtection } = doubleCsrf({
getSecret: () => CSRF_SECRET,
cookieName: "X-CSRF-Token",
cookieOptions: {
httpOnly: true,
sameSite: "strict",
secure: false
},
size: 64,
getTokenFromRequest: (req) => req.headers["x-csrf-token"]
});
app.get("/csrf-token", (req, res) => {
res.json({
"token": generateToken(res)
});
});
app.get("/timeout", (req, res) => {
res.json({
"timeout": connectionTimeoutMS
});
});
if (csrf_token) {
app.use(cookieParser(COOKIES_SECRET));
app.use(doubleCsrfProtection);
}
// CORS Settings //
const cors = require('cors');
const CORS = cors({
origin: 'null',
methods: ['OPTIONS']
});
if (csrf_token) {
app.use(CORS);
}
app.use(function (req, res, next) { //Security
let clientIp = req.connection.remoteAddress;
let ip = ipaddr.parse(clientIp);
// Check if the IP address is IPv4-mapped IPv6 address
if (ip.kind() === 'ipv6' && ip.isIPv4MappedAddress()) {
const ipv4 = ip.toIPv4Address().toString();
clientIp = ipv4;
} else {
clientIp = ip;
clientIp = clientIp.toString();
}
//clientIp = req.connection.remoteAddress.split(':').pop();
if (whitelistMode === true && !whitelist.includes(clientIp)) {
console.log('Forbidden: Connection attempt from '+ clientIp+'. If you are attempting to connect, please add your IP address in whitelist or disable whitelist mode in config.conf in root of TavernAI folder.\n');
return res.status(403).send('<b>Forbidden</b>: Connection attempt from <b>'+ clientIp+'</b>. If you are attempting to connect, please add your IP address in whitelist or disable whitelist mode in config.conf in root of TavernAI folder.');
}
next();
});
app.use((req, res, next) => {
if (req.url.startsWith('/characters/') && is_colab && process.env.googledrive == 2) {
let requestUrl = url.parse(req.url);
const filePath = path.join(charactersPath, decodeURIComponent(requestUrl.pathname.substr('/characters'.length)));
fs.access(filePath, fs.constants.R_OK, (err) => {
if (!err) {
res.sendFile(filePath);
} else {
res.send('Character not found: ' + filePath);
//next();
}
});
} else {
next();
}
});
app.use((req, res, next) => {
if (req.url.startsWith('/User%20Avatars/') && is_colab && process.env.googledrive == 2) {
let requestUrl = url.parse(req.url);
const filePath = path.join(UserAvatarsPath, decodeURIComponent(requestUrl.pathname.substr('/User%20Avatars'.length)));
fs.access(filePath, fs.constants.R_OK, (err) => {
if (!err) {
res.sendFile(filePath);
} else {
res.send('Avatar not found: ' + filePath);
//next();
}
});
} else {
next();
}
});
app.use(express.static(__dirname + "/public", { refresh: true }));
app.use('/backgrounds', (req, res) => {
const filePath = decodeURIComponent(path.join(process.cwd(), 'public/backgrounds', req.url.replace(/%20/g, ' ')));
fs.readFile(filePath, (err, data) => {
if (err) {
res.status(404).send('File not found');
return;
}
//res.contentType('image/jpeg');
res.send(data);
});
});
app.use('/characters', (req, res) => {
let filePath = decodeURIComponent(path.join(process.cwd(), charactersPath, req.url.replace(/%20/g, ' ')));
filePath = filePath.split('?v=');
filePath = filePath[0];
fs.readFile(filePath, (err, data) => {
if (err) {
res.status(404).send('File not found');
return;
}
//res.contentType('image/jpeg');
res.send(data);
});
});
app.use('/cardeditor', (req, res) => {
const requestUrl = url.parse(req.url);
const filePath = decodeURIComponent(path.join(process.cwd(), 'public/cardeditor', requestUrl.pathname.replace(/%20/g, ' ')));
fs.readFile(filePath, (err, data) => {
if (err) {
res.status(404).send('File not found');
return;
}
//res.contentType('image/jpeg');
res.send(data);
});
});
app.use('/User%20Avatars', (req, res) => {
const requestUrl = url.parse(req.url);
const filePath = decodeURIComponent(path.join(process.cwd(), UserAvatarsPath, requestUrl.pathname.replace(/%20/g, ' ')));
fs.readFile(filePath, (err, data) => {
if (err) {
res.status(404).send('File not found ');
return;
}
//res.contentType('image/jpeg');
res.send(data);
});
});
app.use(multer({dest:"uploads"}).single("avatar"));
app.get("/", function(request, response){
response.sendFile(__dirname + "/public/index.html");
//response.send("<h1>Главная страница</h1>");
});
app.get("/notes/*", function(request, response){
response.sendFile(__dirname + "/public"+request.url+".html");
//response.send("<h1>Главная страница</h1>");
});
app.post("/getlastversion", jsonParser, function(request, response_getlastversion = response){
if(!request.body) return response_getlastversion.sendStatus(400);
const repo = 'TavernAI/TavernAI';
let req;
req = https.request({
hostname: 'github.com',
path: `/${repo}/releases/latest`,
method: 'HEAD'
}, (res) => {
if(res.statusCode === 302) {
const glocation = res.headers.location;
const versionStartIndex = glocation.lastIndexOf('@')+1;
const version = glocation.substring(versionStartIndex);
//console.log(version);
response_getlastversion.send({version: version});
}else{
response_getlastversion.send({version: 'error'});
}
});
req.on('error', (error) => {
console.error(error);
response_getlastversion.send({version: 'error'});
});
req.end();
});
//**************Kobold api
app.post("/generate", jsonParser, function(request, response_generate = response){
if(!request.body) return response_generate.sendStatus(400);
//console.log(request.body.prompt);
//const dataJson = json5.parse(request.body);
request_promt = request.body.prompt;
//console.log(request.body);
var this_settings = { prompt: request_promt,
use_story:false,
use_memory:false,
use_authors_note:false,
use_world_info:false,
max_context_length: request.body.max_context_length
//temperature: request.body.temperature,
//max_length: request.body.max_length
};
if(request.body.singleline) {
this_settings.singleline = true
}
if(request.body.gui_settings == false){
var sampler_order = [request.body.s1,request.body.s2,request.body.s3,request.body.s4,request.body.s5,request.body.s6,request.body.s7];
this_settings = { prompt: request_promt,
use_story:false,
use_memory:false,
use_authors_note:false,
use_world_info:false,
max_context_length: request.body.max_context_length,
max_length: request.body.max_length,
rep_pen: request.body.rep_pen,
rep_pen_range: request.body.rep_pen_range,
rep_pen_slope: request.body.rep_pen_slope,
temperature: request.body.temperature,
tfs: request.body.tfs,
top_a: request.body.top_a,
top_k: request.body.top_k,
top_p: request.body.top_p,
typical: request.body.typical,
sampler_order: sampler_order
};
if(request.body.singleline) {
this_settings.singleline = true
}
}
console.log(this_settings);
var args = {
data: this_settings,
headers: { "Content-Type": "application/json" },
requestConfig: {
timeout: connectionTimeoutMS
}
};
client.post(api_server+"/v1/generate",args, function (data, response) {
if(response.statusCode == 200){
console.log(data);
response_generate.send(data);
}
if(response.statusCode == 422){
console.log('Validation error');
response_generate.send({error: true, error_message: "Validation error"});
}
if(response.statusCode == 501 || response.statusCode == 503 || response.statusCode == 507){
console.log(data);
if(data.detail && data.detail.msg) {
response_generate.send({error: true, error_message: data.detail.msg});
} else {
response_generate.send({error: true, error_message: "Error. Status code: " + response.statusCode});
}
}
}).on('error', function (err) {
console.log(err);
//console.log('something went wrong on the request', err.request.options);
response_generate.send({error: true, error_message: "Unspecified error while sending the request.\n" + err});
});
});
app.post("/savechat", jsonParser, function(request, response){
//console.log(request.data);
//console.log(request.body.bg);
//const data = request.body;
//console.log(request);
//console.log(request.body.chat);
//var bg = "body {background-image: linear-gradient(rgba(19,21,44,0.75), rgba(19,21,44,0.75)), url(../backgrounds/"+request.body.bg+");}";
var dir_name = String(request.body.card_filename).replace(`.${characterFormat}`,'');
let chat_data = request.body.chat;
let jsonlData = chat_data.map(JSON.stringify).join('\n');
fs.writeFile(chatsPath+dir_name+"/"+request.body.file_name+'.jsonl', jsonlData, 'utf8', function(err) {
if(err) {
response.send(err);
return console.log(err);
//response.send(err);
}else{
//response.redirect("/");
response.send({result: "ok"});
}
});
});
app.post("/getchat", jsonParser, function(request, response){
//console.log(request.data);
//console.log(request.body.bg);
//const data = request.body;
//console.log(request);
//console.log(request.body.chat);
//var bg = "body {background-image: linear-gradient(rgba(19,21,44,0.75), rgba(19,21,44,0.75)), url(../backgrounds/"+request.body.bg+");}";
var dir_name = String(request.body.card_filename).replace(`.${characterFormat}`,'');
fs.stat(chatsPath+dir_name, function(err, stat) {
if(stat === undefined){
fs.mkdirSync(chatsPath+dir_name);
response.send({});
return;
}else{
if(err === null){
fs.stat(chatsPath+dir_name+"/"+request.body.file_name+".jsonl", function(err, stat) {
if (err === null) {
if(stat !== undefined){
fs.readFile(chatsPath+dir_name+"/"+request.body.file_name+".jsonl", 'utf8', (err, data) => {
if (err) {
console.error(err);
response.send(err);
return;
}
//console.log(data);
const lines = data.split('\n');
// Iterate through the array of strings and parse each line as JSON
const jsonData = lines.filter(line => line && line.length).map(json5.parse);
response.send(jsonData);
});
}
}else{
response.send({});
//return console.log(err);
return;
}
});
}else{
console.error(err);
response.send({});
return;
}
}
});
});
app.post("/savechatroom", jsonParser, function(request, response){
//console.log(request.data);
//console.log(request.body.bg);
//const data = request.body;
//console.log(request);
//console.log(request.body.chat);
//var bg = "body {background-image: linear-gradient(rgba(19,21,44,0.75), rgba(19,21,44,0.75)), url(../backgrounds/"+request.body.bg+");}";
var dir_name = String(request.body.filename);
let chat_data = request.body.chat;
let jsonlData = chat_data.map(JSON.stringify).join('\n');
fs.writeFile(roomsPath+"/"+request.body.filename+'.jsonl', jsonlData, 'utf8', function(err) {
if(err) {
response.send(err);
return console.log(err);
//response.send(err);
}else{
//response.redirect("/");
response.send({result: "ok"});
}
});
});
app.post("/getchatroom", jsonParser, function(request, response){
// Expected: request.body.room_filename is the .jsonl file name (WITHOUT the extension) representing the room referred
var dir_name = String(request.body.room_filename);
fs.stat(roomsPath+dir_name+".jsonl", function(err, stat) {
if(stat === undefined){
fs.mkdirSync(roomsPath+dir_name+".jsonl");
response.send({});
return;
}else{
if(err === null){
fs.stat(roomsPath+request.body.room_filename+".jsonl", function(err, stat) {
if (err === null) {
if(stat !== undefined){
fs.readFile(roomsPath+request.body.room_filename+".jsonl", 'utf8', (err, data) => {
if (err) {
console.error(err);
response.send(err);
return;
}
//console.log(data);
const lines = data.split('\n');
// Iterate through the array of strings and parse each line as JSON
const jsonData = lines.map(json5.parse);
response.send(jsonData);
});
}
}else{
response.send({});
//return console.log(err);
return;
}
});
}else{
console.error(err);
response.send({});
return;
}
}
});
});
app.post("/getstatus", jsonParser, function(request, response_getstatus = response){
if(!request.body) return response_getstatus.sendStatus(400);
api_server = request.body.api_server;
if(api_server.indexOf('localhost') != -1){
api_server = api_server.replace('localhost','127.0.0.1');
}
var args = {
headers: { "Content-Type": "application/json" }
};
client.get(api_server+"/v1/model",args, function (data, response) {
if(response.statusCode == 200){
if(data.result != "ReadOnly"){
//response_getstatus.send(data.result);
}else{
data.result = "no_connection";
}
}else{
data.result = "no_connection";
}
response_getstatus.send(data);
//console.log(response.statusCode);
//console.log(data);
//response_getstatus.send(data);
//data.results[0].text
}).on('error', function (err) {
//console.log('');
//console.log('something went wrong on the request', err.request.options);
response_getstatus.send({result: "no_connection"});
});
});
function checkServer(){
//console.log('Check run###################################################');
api_server = 'http://127.0.0.1:5000';
var args = {
headers: { "Content-Type": "application/json" }
};
client.get(api_server+"/v1/model",args, function (data, response) {
console.log(data.result);
//console.log('###################################################');
console.log(data);
}).on('error', function (err) {
console.log(err);
//console.log('');
//console.log('something went wrong on the request', err.request.options);
//console.log('errorrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr');
});
}
//***************** Main functions
function checkCharaProp(prop) {
return (String(prop) || '')
.replace(/[\u2018\u2019‘’]/g, "'")
.replace(/[\u201C\u201D“”]/g, '"');
}
function charaFormatData(data){
let name;
if(data.ch_name === undefined){
name = data.name;
}else{
name = data.ch_name;
}
name = checkCharaProp(name);
if(name.length === 0){
name = 'null';
}
let categories;
let last_action_date;
let create_date_online;
let edit_date_online;
if(data.create_date_online === undefined){
create_date_online = Date.now();
}else{
create_date_online = data.create_date_online;
}
if(data.edit_date_online === undefined){
edit_date_online = Date.now();
}else{
edit_date_online = data.edit_date_online;
}
if (data.last_action_date === undefined) {
last_action_date = Date.now();
} else {
last_action_date = data.last_action_date;
}
let create_date_local;
let edit_date_local;
if(data.create_date_local === undefined){
create_date_local = Date.now();
}else{
create_date_local = data.create_date_local;
}
if(data.edit_date_local === undefined){
edit_date_local = Date.now();
}else{
edit_date_local = data.edit_date_local;
}
if (data.add_date_local === undefined) {
add_date_local = Date.now();
} else {
add_date_local = data.add_date_local;
}
if(data.categories === undefined){
categories = [];
}else{
categories = data.categories;
}
if(data.nsfw === undefined){
data.nsfw = false;
}else if(data.nsfw !== false){
data.nsfw = true;
}
let short_description;
if(data.short_description === undefined){
short_description = "";
}else{
short_description = data.short_description;
}
let char = {public_id: checkCharaProp(data.public_id), public_id_short: checkCharaProp(data.public_id_short), user_name: checkCharaProp(data.user_name), user_name_view: checkCharaProp(data.user_name_view), name: name, description: checkCharaProp(data.description), short_description: checkCharaProp(short_description), personality: checkCharaProp(data.personality), first_mes: checkCharaProp(data.first_mes), chat: Date.now(), mes_example: checkCharaProp(data.mes_example), scenario: checkCharaProp(data.scenario), categories: categories, create_date_online: create_date_online, edit_date_online: edit_date_online, create_date_local: create_date_local, edit_date_local: edit_date_local, add_date_local: add_date_local, last_action_date: last_action_date, online: data.online, nsfw: data.nsfw};
// Filtration
if(data.public_id === undefined){
char.public_id = uuid.v4().replace(/-/g, '');
}else{
if(data.public_id == "undefined" || data.public_id.length === 0){
char.public_id = uuid.v4().replace(/-/g, '');
}
}
if(data.public_id_short === undefined){
delete char.public_id_short;
}
if(data.user_name === undefined){
delete char.user_name;
}
if(data.user_name_view === undefined){
delete char.user_name_view;
}
if(data.online != true){
delete char.online;
}
return char;
}
app.post("/createcharacter", urlencodedParser, async function(request, response){
let target_img = setCardName(request.body.ch_name);
if(!request.body) return response.sendStatus(400);
if (!fs.existsSync(charactersPath+target_img+`.${characterFormat}`)){
if(!fs.existsSync(chatsPath+target_img) )fs.mkdirSync(chatsPath+target_img);
let filedata = request.file;
var fileType = ".avif";
var img_file = "ai";
var img_path = "public/img/";
var char = charaFormatData(request.body);//{"name": target_img, "description": request.body.description, "personality": request.body.personality, "first_mes": request.body.first_mes, "avatar": 'none', "chat": Date.now(), "last_mes": '', "mes_example": ''};
char = JSON.stringify(char);
if(!filedata){
await charaWrite('./public/img/fluffy.avif', char, charactersPath + target_img, characterFormat, response);
}else{
img_path = "./uploads/";
img_file = filedata.filename
if (filedata.mimetype == "image/jpeg") fileType = ".jpeg";
if (filedata.mimetype == "image/png") fileType = ".png";
if (filedata.mimetype == "image/gif") fileType = ".gif";
if (filedata.mimetype == "image/bmp") fileType = ".bmp";
if (filedata.mimetype == "image/webp") fileType = ".webp";
await charaWrite(img_path+img_file, char, charactersPath + target_img, characterFormat);
}
response.status(200).send({file_name: target_img});
//console.log("The file was saved.");
}else{
response.send("Error: A character with that name already exists.");
}
//console.log(request.body);
//response.send(target_img);
//response.redirect("https://metanit.com")
});
app.post("/createroom", urlencodedParser, async function(request, response){
// let target_img = setCardName(request.body.ch_name);
// since we are planning to re-use existing code, ch_name == filename (jsonl filename), since changing vvariables means we need
// to also change the html file's form's input "name" attributes
let target_file = request.body.ch_name;
let characterNames = request.body.room_characters;
let scenario = request.body.room_scenario;
const fileExtension = ".jsonl";
if(!request.body) return response.sendStatus(400);
if(!request.body.room_characters) return response.sendStatus(400); // A room needs to have at least one character
if (!fs.existsSync(roomsPath+target_file+fileExtension)){
if(!scenario)
await roomWrite(target_file, characterNames);
else
await roomWrite(target_file, characterNames, "You", Date.now(), "", "discr", scenario, []);
response.status(200).send({file_name: target_file});
//console.log("The file was saved.");
}else{
response.send("Error: A room with that name already exists.");
}
//console.log(request.body);
//response.send(target_img);
//response.redirect("https://metanit.com")
});
app.post("/editcharacter", urlencodedParser, async function(request, response){
try {
if (!request.body)
return response.sendStatus(400);
let card_filename = request.body.filename;
let filedata = request.file;
var fileType = ".png";
var img_file = "ai";
var img_path = charactersPath;
let old_char_data_json = await charaRead(charactersPath + card_filename);
let old_char_data = JSON.parse(old_char_data_json);
let new_char_data = request.body;
let merged_char_data = Object.assign({}, old_char_data, new_char_data);
var char = charaFormatData(merged_char_data);//{"name": request.body.ch_name, "description": request.body.description, "personality": request.body.personality, "first_mes": request.body.first_mes, "avatar": request.body.avatar_url, "chat": request.body.chat, "last_mes": request.body.last_mes, "mes_example": ''};
char.chat = request.body.chat;
char.create_date_local = request.body.create_date_local;
if (old_char_data.add_date_local !== undefined) {
char.add_date_local = old_char_data.add_date_local;
} else {
char.add_date_local = old_char_data.create_date_local;
}
char.edit_date_local = Date.now();
char = JSON.stringify(char);
let target_img = (card_filename).replace(`.${characterFormat}`, '');
if (!filedata) {
await charaWrite(img_path + card_filename, char, charactersPath + target_img, characterFormat);
} else {
//console.log(filedata.filename);
img_path = "uploads/";
img_file = filedata.filename;
await charaWrite(img_path + img_file, char, charactersPath + target_img, characterFormat);
//response.send('Character saved');
}
return response.status(200).send('Character saved');
} catch (err) {
console.log(err);
return response.status(400).json({error: err.toString()});
}
});
app.post("/deletecharacter", jsonParser, function(request, response){
try {
if (!request.body){
return response.sendStatus(400).json({error: 'Validation body error'});
}
let filename = request.body.filename;
rimraf.sync(charactersPath + filename);
let dir_name = filename;
rimraf.sync(chatsPath + dir_name.replace(`.${characterFormat}`, ''));
return response.status(200).json({});
} catch (err) {
console.log(err);
return response.status(400).json({error: err.toString()});
}
});
app.post("/editroom", urlencodedParser, async function(request, response){
try {
if (!request.body)
return response.sendStatus(400);
let filename = request.body.filename;
// let filedata = request.file; // No file data for rooms, since rooms do not have any avatar/image associated with them
var fileExtension = ".jsonl";
var img_file = "ai";
var img_path = roomsPath;
let old_room_data = await roomRead(filename + fileExtension);
let old_room_metadata = old_room_data[0];
let room_data_array = Object.values(old_room_data); // Convert JSON object (of JSON objects) into an array (of JSON objects)
room_data_array.shift(); // The first line is metadata, so need to remove it first
let room_chat_data = room_data_array;
// let old_char_data = JSON.parse(old_char_data_json); // No need for this line, since roomRead() already returns a JSON object (not as string)
let new_room_metadata = request.body;
let merged_room_metadata = Object.assign({}, old_room_metadata, new_room_metadata);
await roomWrite(filename, merged_room_metadata.character_names, merged_room_metadata.user_name, merged_room_metadata.create_date,
merged_room_metadata.notes, merged_room_metadata.notes_types, merged_room_metadata.scenario, room_chat_data);
return response.status(200).send('Room saved');
} catch (err) {
console.log(err);
return response.status(400).json({error: err.toString()});
}
});
// Expected filename without the extension
app.post("/deleteroom", jsonParser, function(request, response){
try {
if (!request.body){
return response.sendStatus(400).json({error: 'Validation body error'});
}
let extension = ".jsonl";
let filename = request.body.filename + extension;
rimraf.sync(roomsPath + filename);
// let dir_name = filename;
// rimraf.sync(chatsPath + dir_name.replace(`.${characterFormat}`, ''));
return response.status(200).json({});
} catch (err) {
console.log(err);
return response.status(400).json({error: err.toString()});
}
});
async function charaWrite(source_img, data, target_img, format = 'webp') {
try {
// Load the image in any format
sharp.cache(false);
switch (format) {
case 'webp':
const imageBuffer = fs.readFileSync(source_img);
let stringByteArray = utf8Encode.encode(data).toString();
const processedImage = await sharp(imageBuffer).resize(400, 600).webp({'quality': 95}).withMetadata({
exif: {
IFD0: {
UserComment: stringByteArray
}
}
}).toBuffer();
fs.writeFileSync(target_img + '.webp', processedImage);
break;
case 'png':
var image = await sharp(source_img).resize(400, 600).toFormat('png').toBuffer();// old 170 234
// Get the chunks
var chunks = extract(image);
var tEXtChunks = chunks.filter(chunk => chunk.name === 'tEXt');
// Remove all existing tEXt chunks
for (var tEXtChunk of tEXtChunks) {
chunks.splice(chunks.indexOf(tEXtChunk), 1);
}
// Add new chunks before the IEND chunk
var base64EncodedData = Buffer.from(data, 'utf8').toString('base64');
chunks.splice(-1, 0, PNGtext.encode('chara', base64EncodedData));
fs.writeFileSync(target_img+'.png', new Buffer.from(encode(chunks)));
break;
default:
break;
}
} catch (err) {
throw err;
}
}
async function charaRead(img_url, input_format){
let format;
sharp.cache(false);
if(input_format === undefined){
if(img_url.indexOf('.webp') !== -1){
format = 'webp';
}else{
format = 'png';
}
}else{
format = input_format;
}
switch(format){
case 'webp':
try {
sharp.cache(false);
let char_data;
const exif_data = await ExifReader.load(fs.readFileSync(img_url));
if (exif_data['UserComment']['description']) {
let description = exif_data['UserComment']['description'];
try {
JSON.parse(description);
char_data = description;
} catch {
const byteArr = description.split(",").map(Number);
const uint8Array = new Uint8Array(byteArr);
const char_data_string = utf8Decode.decode(uint8Array);
char_data = char_data_string;
}
} else {
console.log('No description found in EXIF data.');
return false;
}
return char_data;
} catch (err) {
console.log(err);
return false;
}
case 'png':
const buffer = fs.readFileSync(img_url);
const chunks = extract(buffer);
const textChunks = chunks.filter(function(chunk) {
return chunk.name === 'tEXt';
}).map(function (chunk) {
return PNGtext.decode(chunk.data);
});
var base64DecodedData = Buffer.from(textChunks[0].text, 'base64').toString('utf8');
return base64DecodedData;
default:
break;
}
}
// The function already appends the roomsPath before filedir (filename), and the .jsonl extension after the filedir
async function roomWrite(filedir, characterNames, user_name="You", create_date="", notes="", notes_type="discr", scenario="", chat=[]) {
try {
const fileExtension = ".jsonl";
let fileContent = ''; // In string form
let createDate = create_date ? create_date : Date.now();
// let characterNamesArray = characterNames.isArray() ? characterNames : [characterNames];
if(!Array.isArray((characterNames)))
characterNames = [characterNames]; // Convert character names into an array if not already (happens when user selected only one character for a room)
let firstLine = '{"user_name":"'+user_name+'","character_names":'+JSON.stringify(characterNames)+',"create_date":'+createDate+',"notes":"'+notes+'","notes_type":"'+notes_type+'","scenario":"'+scenario+'"}';
fileContent += firstLine;
fileContent += chat.length ? "\n" : "";
chat.forEach(function(chat_msg, i) {
if(i < chat.length-1) // If the current chat message is not the last message
fileContent += JSON.stringify(chat_msg) + "\n";
else
fileContent += JSON.stringify(chat_msg);
});
fs.writeFileSync(roomsPath+filedir+fileExtension, fileContent);
// console.log(firstLine);
} catch (err) {