@n8n/n8n-nodes-langchain
Version:
136 lines (132 loc) • 4.88 kB
JavaScript
"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getSanitizedInitialMessages = getSanitizedInitialMessages;
exports.getSanitizedI18nConfig = getSanitizedI18nConfig;
exports.getSanitizedCustomCss = getSanitizedCustomCss;
exports.createPage = createPage;
const sanitize_html_1 = __importDefault(require("sanitize-html"));
function sanitizeUserInput(input) {
let sanitized = (0, sanitize_html_1.default)(input, {
allowedTags: [],
allowedAttributes: {},
});
sanitized = sanitized.replace(/javascript:/gi, '');
sanitized = sanitized.replace(/data:/gi, '');
sanitized = sanitized.replace(/vbscript:/gi, '');
return sanitized;
}
function getSanitizedInitialMessages(initialMessages) {
const sanitizedString = sanitizeUserInput(initialMessages);
return sanitizedString
.split('\n')
.map((line) => line.trim())
.filter((line) => line !== '');
}
function getSanitizedI18nConfig(config) {
const sanitized = {};
for (const [key, value] of Object.entries(config)) {
sanitized[key] = sanitizeUserInput(value);
}
return sanitized;
}
function getSanitizedCustomCss(customCss) {
return customCss.replace(/<\/style/gi, '');
}
function createPage({ instanceId, webhookUrl, showWelcomeScreen, loadPreviousSession, i18n: { en }, initialMessages, authentication, allowFileUploads, allowedFilesMimeTypes, customCss, enableStreaming, }) {
const validAuthenticationOptions = [
'none',
'basicAuth',
'n8nUserAuth',
];
const validLoadPreviousSessionOptions = [
'manually',
'memory',
'notSupported',
];
const sanitizedAuthentication = validAuthenticationOptions.includes(authentication)
? authentication
: 'none';
const sanitizedShowWelcomeScreen = !!showWelcomeScreen;
const sanitizedAllowFileUploads = !!allowFileUploads;
const sanitizedAllowedFilesMimeTypes = sanitizeUserInput(allowedFilesMimeTypes?.toString() ?? '');
const sanitizedCustomCss = getSanitizedCustomCss(customCss?.toString() ?? '');
const sanitizedLoadPreviousSession = validLoadPreviousSessionOptions.includes(loadPreviousSession)
? loadPreviousSession
: 'notSupported';
const sanitizedInitialMessages = getSanitizedInitialMessages(initialMessages);
const sanitizedI18nConfig = getSanitizedI18nConfig(en || {});
return `<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Chat</title>
<link href="https://cdn.jsdelivr.net/npm/normalize.css@8.0.1/normalize.min.css" rel="stylesheet" />
<link href="https://cdn.jsdelivr.net/npm/@n8n/chat/dist/style.css" rel="stylesheet" />
<style>
html,
body,
#n8n-chat {
width: 100%;
height: 100%;
}
</style>
<style>${sanitizedCustomCss}</style>
</head>
<body>
<script type="module">
import { createChat } from 'https://cdn.jsdelivr.net/npm/@n8n/chat/dist/chat.bundle.es.js';
(async function () {
const authentication = '${sanitizedAuthentication}';
let metadata;
if (authentication === 'n8nUserAuth') {
try {
const response = await fetch('/rest/login', {
method: 'GET',
headers: { 'browser-id': localStorage.getItem('n8n-browserId') }
});
if (response.status !== 200) {
throw new Error('Not logged in');
}
const responseData = await response.json();
metadata = {
user: {
id: responseData.data.id,
firstName: responseData.data.firstName,
lastName: responseData.data.lastName,
email: responseData.data.email,
},
};
} catch (error) {
window.location.href = '/signin?redirect=' + window.location.href;
return;
}
}
createChat({
mode: 'fullscreen',
webhookUrl: '${webhookUrl}',
showWelcomeScreen: ${sanitizedShowWelcomeScreen},
loadPreviousSession: ${sanitizedLoadPreviousSession !== 'notSupported'},
metadata: metadata,
webhookConfig: {
headers: {
'X-Instance-Id': '${instanceId}',
}
},
allowFileUploads: ${sanitizedAllowFileUploads},
allowedFilesMimeTypes: ${JSON.stringify(sanitizedAllowedFilesMimeTypes)},
i18n: {
${Object.keys(sanitizedI18nConfig).length ? `en: ${JSON.stringify(sanitizedI18nConfig)},` : ''}
},
${sanitizedInitialMessages.length ? `initialMessages: ${JSON.stringify(sanitizedInitialMessages)},` : ''}
enableStreaming: ${!!enableStreaming},
});
})();
</script>
</body>
</html>`;
}
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