mirror of
https://github.com/SillyTavern/SillyTavern.git
synced 2025-02-08 16:18:42 +01:00
367 lines
14 KiB
JavaScript
367 lines
14 KiB
JavaScript
const fetch = require('node-fetch').default;
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const express = require('express');
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const util = require('util');
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const { Readable } = require('stream');
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const { readSecret, SECRET_KEYS } = require('./secrets');
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const { readAllChunks, extractFileFromZipBuffer } = require('../util');
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const { jsonParser } = require('../express-common');
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const API_NOVELAI = 'https://api.novelai.net';
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// Ban bracket generation, plus defaults
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const badWordsList = [
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[3], [49356], [1431], [31715], [34387], [20765], [30702], [10691], [49333], [1266],
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[19438], [43145], [26523], [41471], [2936], [85, 85], [49332], [7286], [1115],
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];
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const hypeBotBadWordsList = [
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[58], [60], [90], [92], [685], [1391], [1782], [2361], [3693], [4083], [4357], [4895],
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[5512], [5974], [7131], [8183], [8351], [8762], [8964], [8973], [9063], [11208],
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[11709], [11907], [11919], [12878], [12962], [13018], [13412], [14631], [14692],
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[14980], [15090], [15437], [16151], [16410], [16589], [17241], [17414], [17635],
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[17816], [17912], [18083], [18161], [18477], [19629], [19779], [19953], [20520],
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[20598], [20662], [20740], [21476], [21737], [22133], [22241], [22345], [22935],
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[23330], [23785], [23834], [23884], [25295], [25597], [25719], [25787], [25915],
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[26076], [26358], [26398], [26894], [26933], [27007], [27422], [28013], [29164],
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[29225], [29342], [29565], [29795], [30072], [30109], [30138], [30866], [31161],
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[31478], [32092], [32239], [32509], [33116], [33250], [33761], [34171], [34758],
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[34949], [35944], [36338], [36463], [36563], [36786], [36796], [36937], [37250],
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[37913], [37981], [38165], [38362], [38381], [38430], [38892], [39850], [39893],
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[41832], [41888], [42535], [42669], [42785], [42924], [43839], [44438], [44587],
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[44926], [45144], [45297], [46110], [46570], [46581], [46956], [47175], [47182],
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[47527], [47715], [48600], [48683], [48688], [48874], [48999], [49074], [49082],
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[49146], [49946], [10221], [4841], [1427], [2602, 834], [29343], [37405], [35780], [2602], [50256],
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];
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// Used for phrase repetition penalty
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const repPenaltyAllowList = [
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[49256, 49264, 49231, 49230, 49287, 85, 49255, 49399, 49262, 336, 333, 432, 363, 468, 492, 745, 401, 426, 623, 794,
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1096, 2919, 2072, 7379, 1259, 2110, 620, 526, 487, 16562, 603, 805, 761, 2681, 942, 8917, 653, 3513, 506, 5301,
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562, 5010, 614, 10942, 539, 2976, 462, 5189, 567, 2032, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 588,
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803, 1040, 49209, 4, 5, 6, 7, 8, 9, 10, 11, 12],
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];
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// Ban the dinkus and asterism
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const logitBiasExp = [
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{ 'sequence': [23], 'bias': -0.08, 'ensure_sequence_finish': false, 'generate_once': false },
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{ 'sequence': [21], 'bias': -0.08, 'ensure_sequence_finish': false, 'generate_once': false },
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];
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function getBadWordsList(model) {
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let list = [];
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if (model.includes('hypebot')) {
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list = hypeBotBadWordsList;
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}
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if (model.includes('clio') || model.includes('kayra')) {
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list = badWordsList;
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}
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// Clone the list so we don't modify the original
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return list.slice();
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}
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const router = express.Router();
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router.post('/status', jsonParser, async function (req, res) {
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if (!req.body) return res.sendStatus(400);
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const api_key_novel = readSecret(SECRET_KEYS.NOVEL);
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if (!api_key_novel) {
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return res.sendStatus(401);
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}
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try {
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const response = await fetch(API_NOVELAI + '/user/subscription', {
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method: 'GET',
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headers: {
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'Content-Type': 'application/json',
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'Authorization': 'Bearer ' + api_key_novel,
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},
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});
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if (response.ok) {
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const data = await response.json();
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return res.send(data);
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} else if (response.status == 401) {
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console.log('NovelAI Access Token is incorrect.');
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return res.send({ error: true });
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}
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else {
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console.log('NovelAI returned an error:', response.statusText);
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return res.send({ error: true });
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}
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} catch (error) {
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console.log(error);
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return res.send({ error: true });
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}
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});
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router.post('/generate', jsonParser, async function (req, res) {
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if (!req.body) return res.sendStatus(400);
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const api_key_novel = readSecret(SECRET_KEYS.NOVEL);
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if (!api_key_novel) {
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return res.sendStatus(401);
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}
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const controller = new AbortController();
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req.socket.removeAllListeners('close');
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req.socket.on('close', function () {
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controller.abort();
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});
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const isNewModel = (req.body.model.includes('clio') || req.body.model.includes('kayra'));
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const badWordsList = getBadWordsList(req.body.model);
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// Add customized bad words for Clio and Kayra
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if (isNewModel && Array.isArray(req.body.bad_words_ids)) {
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for (const badWord of req.body.bad_words_ids) {
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if (Array.isArray(badWord) && badWord.every(x => Number.isInteger(x))) {
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badWordsList.push(badWord);
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}
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}
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}
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// Remove empty arrays from bad words list
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for (const badWord of badWordsList) {
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if (badWord.length === 0) {
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badWordsList.splice(badWordsList.indexOf(badWord), 1);
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}
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}
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// Add default biases for dinkus and asterism
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const logit_bias_exp = isNewModel ? logitBiasExp.slice() : [];
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if (Array.isArray(logit_bias_exp) && Array.isArray(req.body.logit_bias_exp)) {
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logit_bias_exp.push(...req.body.logit_bias_exp);
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}
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const data = {
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'input': req.body.input,
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'model': req.body.model,
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'parameters': {
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'use_string': req.body.use_string ?? true,
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'temperature': req.body.temperature,
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'max_length': req.body.max_length,
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'min_length': req.body.min_length,
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'tail_free_sampling': req.body.tail_free_sampling,
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'repetition_penalty': req.body.repetition_penalty,
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'repetition_penalty_range': req.body.repetition_penalty_range,
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'repetition_penalty_slope': req.body.repetition_penalty_slope,
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'repetition_penalty_frequency': req.body.repetition_penalty_frequency,
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'repetition_penalty_presence': req.body.repetition_penalty_presence,
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'repetition_penalty_whitelist': isNewModel ? repPenaltyAllowList : null,
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'top_a': req.body.top_a,
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'top_p': req.body.top_p,
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'top_k': req.body.top_k,
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'typical_p': req.body.typical_p,
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'mirostat_lr': req.body.mirostat_lr,
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'mirostat_tau': req.body.mirostat_tau,
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'cfg_scale': req.body.cfg_scale,
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'cfg_uc': req.body.cfg_uc,
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'phrase_rep_pen': req.body.phrase_rep_pen,
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'stop_sequences': req.body.stop_sequences,
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'bad_words_ids': badWordsList.length ? badWordsList : null,
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'logit_bias_exp': logit_bias_exp,
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'generate_until_sentence': req.body.generate_until_sentence,
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'use_cache': req.body.use_cache,
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'return_full_text': req.body.return_full_text,
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'prefix': req.body.prefix,
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'order': req.body.order,
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},
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};
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console.log(util.inspect(data, { depth: 4 }));
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const args = {
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body: JSON.stringify(data),
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headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + api_key_novel },
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signal: controller.signal,
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};
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try {
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const url = req.body.streaming ? `${API_NOVELAI}/ai/generate-stream` : `${API_NOVELAI}/ai/generate`;
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const response = await fetch(url, { method: 'POST', timeout: 0, ...args });
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if (req.body.streaming) {
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// Pipe remote SSE stream to Express response
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response.body.pipe(res);
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req.socket.on('close', function () {
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if (response.body instanceof Readable) response.body.destroy(); // Close the remote stream
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res.end(); // End the Express response
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});
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response.body.on('end', function () {
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console.log('Streaming request finished');
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res.end();
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});
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} else {
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if (!response.ok) {
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const text = await response.text();
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let message = text;
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console.log(`Novel API returned error: ${response.status} ${response.statusText} ${text}`);
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try {
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const data = JSON.parse(text);
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message = data.message;
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}
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catch {
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// ignore
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}
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return res.status(response.status).send({ error: { message } });
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}
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const data = await response.json();
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console.log(data);
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return res.send(data);
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}
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} catch (error) {
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return res.send({ error: true });
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}
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});
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router.post('/generate-image', jsonParser, async (request, response) => {
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if (!request.body) {
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return response.sendStatus(400);
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}
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const key = readSecret(SECRET_KEYS.NOVEL);
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if (!key) {
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return response.sendStatus(401);
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}
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try {
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console.log('NAI Diffusion request:', request.body);
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const generateUrl = `${API_NOVELAI}/ai/generate-image`;
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const generateResult = await fetch(generateUrl, {
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method: 'POST',
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headers: {
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'Authorization': `Bearer ${key}`,
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({
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action: 'generate',
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input: request.body.prompt,
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model: request.body.model ?? 'nai-diffusion',
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parameters: {
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negative_prompt: request.body.negative_prompt ?? '',
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height: request.body.height ?? 512,
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width: request.body.width ?? 512,
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scale: request.body.scale ?? 9,
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seed: Math.floor(Math.random() * 9999999999),
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sampler: request.body.sampler ?? 'k_dpmpp_2m',
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steps: request.body.steps ?? 28,
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n_samples: 1,
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// NAI handholding for prompts
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ucPreset: 0,
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qualityToggle: false,
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add_original_image: false,
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controlnet_strength: 1,
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dynamic_thresholding: false,
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legacy: false,
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sm: false,
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sm_dyn: false,
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uncond_scale: 1,
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},
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}),
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});
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if (!generateResult.ok) {
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const text = await generateResult.text();
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console.log('NovelAI returned an error.', generateResult.statusText, text);
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return response.sendStatus(500);
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}
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const archiveBuffer = await generateResult.arrayBuffer();
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const imageBuffer = await extractFileFromZipBuffer(archiveBuffer, '.png');
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const originalBase64 = imageBuffer.toString('base64');
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// No upscaling
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if (isNaN(request.body.upscale_ratio) || request.body.upscale_ratio <= 1) {
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return response.send(originalBase64);
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}
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try {
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console.debug('Upscaling image...');
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const upscaleUrl = `${API_NOVELAI}/ai/upscale`;
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const upscaleResult = await fetch(upscaleUrl, {
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method: 'POST',
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headers: {
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'Authorization': `Bearer ${key}`,
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({
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image: originalBase64,
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height: request.body.height,
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width: request.body.width,
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scale: request.body.upscale_ratio,
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}),
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});
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if (!upscaleResult.ok) {
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throw new Error('NovelAI returned an error.');
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}
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const upscaledArchiveBuffer = await upscaleResult.arrayBuffer();
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const upscaledImageBuffer = await extractFileFromZipBuffer(upscaledArchiveBuffer, '.png');
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const upscaledBase64 = upscaledImageBuffer.toString('base64');
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return response.send(upscaledBase64);
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} catch (error) {
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console.warn('NovelAI generated an image, but upscaling failed. Returning original image.');
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return response.send(originalBase64);
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}
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} catch (error) {
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console.log(error);
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return response.sendStatus(500);
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}
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});
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router.post('/generate-voice', jsonParser, async (request, response) => {
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const token = readSecret(SECRET_KEYS.NOVEL);
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if (!token) {
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return response.sendStatus(401);
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}
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const text = request.body.text;
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const voice = request.body.voice;
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if (!text || !voice) {
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return response.sendStatus(400);
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}
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try {
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const url = `${API_NOVELAI}/ai/generate-voice?text=${encodeURIComponent(text)}&voice=-1&seed=${encodeURIComponent(voice)}&opus=false&version=v2`;
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const result = await fetch(url, {
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method: 'GET',
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headers: {
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'Authorization': `Bearer ${token}`,
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'Accept': 'audio/mpeg',
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},
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timeout: 0,
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});
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if (!result.ok) {
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return response.sendStatus(result.status);
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}
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const chunks = await readAllChunks(result.body);
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const buffer = Buffer.concat(chunks);
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response.setHeader('Content-Type', 'audio/mpeg');
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return response.send(buffer);
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}
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catch (error) {
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console.error(error);
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return response.sendStatus(500);
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}
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});
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module.exports = { router };
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