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var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.JSDomControl = void 0;
const tsyringe_1 = require("tsyringe");
const logger_1 = require("./logger");
const readability_1 = require("@mozilla/readability");
const threaded_1 = require("../services/threaded");
const tailwind_classes_1 = require("../utils/tailwind-classes");
const openai_1 = require("../shared/utils/openai");
const async_service_1 = require("civkit/async-service");
const civ_rpc_1 = require("civkit/civ-rpc");
const pLinkedom = import('linkedom');
let JSDomControl = class JSDomControl extends async_service_1.AsyncService {
constructor(globalLogger) {
super(...arguments);
this.globalLogger = globalLogger;
this.logger = this.globalLogger.child({ service: this.constructor.name });
}
async init() {
await this.dependencyReady();
this.linkedom = await pLinkedom;
this.emit('ready');
}
async narrowSnapshot(snapshot, options) {
if (snapshot?.parsed && !options?.targetSelector && !options?.removeSelector && !options?.withIframe && !options?.withShadowDom) {
return snapshot;
}
if (!snapshot?.html) {
return snapshot;
}
try {
// SideLoad contains native objects that cannot go through thread boundaries.
return await this.actualNarrowSnapshot(snapshot, { ...options, sideLoad: undefined });
}
catch (err) {
this.logger.warn(`Error narrowing snapshot`, { err });
if (err instanceof civ_rpc_1.ApplicationError) {
throw err;
}
throw new civ_rpc_1.AssertionFailureError(`Failed to process the page: ${err?.message}`);
}
}
async actualNarrowSnapshot(snapshot, options) {
const t0 = Date.now();
let sourceHTML = snapshot.html;
if (options?.withShadowDom && snapshot.shadowExpanded) {
sourceHTML = snapshot.shadowExpanded;
}
let jsdom = this.linkedom.parseHTML(sourceHTML);
if (!jsdom.window.document.documentElement) {
jsdom = this.linkedom.parseHTML(`<html><body>${sourceHTML}</body></html>`);
}
const allNodes = [];
jsdom.window.document.querySelectorAll('svg').forEach((x) => x.innerHTML = '');
if (options?.withIframe) {
jsdom.window.document.querySelectorAll('iframe[src],frame[src]').forEach((x) => {
const src = x.getAttribute('src');
const thisSnapshot = snapshot.childFrames?.find((f) => f.href === src);
if (options?.withIframe === 'quoted') {
const blockquoteElem = jsdom.window.document.createElement('blockquote');
const preElem = jsdom.window.document.createElement('pre');
preElem.innerHTML = thisSnapshot?.text || '';
blockquoteElem.appendChild(preElem);
x.replaceWith(blockquoteElem);
}
else if (thisSnapshot?.html) {
x.innerHTML = thisSnapshot.html;
x.querySelectorAll('script, style').forEach((s) => s.remove());
if (src) {
x.querySelectorAll('[src]').forEach((el) => {
const imgSrc = el.getAttribute('src');
if (URL.canParse(imgSrc, src)) {
el.setAttribute('src', new URL(imgSrc, src).toString());
}
});
x.querySelectorAll('[href]').forEach((el) => {
const linkHref = el.getAttribute('href');
if (URL.canParse(linkHref, src)) {
el.setAttribute('href', new URL(linkHref, src).toString());
}
});
}
}
});
}
if (Array.isArray(options?.removeSelector)) {
for (const rl of options.removeSelector) {
jsdom.window.document.querySelectorAll(rl).forEach((x) => x.remove());
}
}
else if (options?.removeSelector) {
jsdom.window.document.querySelectorAll(options.removeSelector).forEach((x) => x.remove());
}
let bewareTargetContentDoesNotExist = false;
if (Array.isArray(options?.targetSelector)) {
bewareTargetContentDoesNotExist = true;
for (const x of options.targetSelector.map((x) => jsdom.window.document.querySelectorAll(x))) {
x.forEach((el) => {
if (!allNodes.includes(el)) {
allNodes.push(el);
}
});
}
}
else if (options?.targetSelector) {
bewareTargetContentDoesNotExist = true;
jsdom.window.document.querySelectorAll(options.targetSelector).forEach((el) => {
if (!allNodes.includes(el)) {
allNodes.push(el);
}
});
}
else {
allNodes.push(jsdom.window.document);
}
if (!allNodes.length) {
if (bewareTargetContentDoesNotExist) {
return undefined;
}
return snapshot;
}
const textNodes = [];
let rootDoc;
if (allNodes.length === 1 && allNodes[0].nodeName === '#document' && allNodes[0].documentElement) {
rootDoc = allNodes[0];
if (rootDoc.body?.innerText) {
textNodes.push(rootDoc.body);
}
}
else {
rootDoc = this.linkedom.parseHTML('<html><body></body></html>').window.document;
for (const n of allNodes) {
rootDoc.body.appendChild(n);
rootDoc.body.appendChild(rootDoc.createTextNode('\n\n'));
if (n.innerText) {
textNodes.push(n);
}
}
}
const textChunks = textNodes.map((x) => {
const clone = x.cloneNode(true);
clone.querySelectorAll('script,style,link,svg').forEach((s) => s.remove());
return clone.innerText;
});
let parsed;
try {
parsed = new readability_1.Readability(rootDoc.cloneNode(true)).parse();
}
catch (err) {
this.logger.warn(`Failed to parse selected element`, { err });
}
const imgSet = new Set();
const rebuiltImgs = [];
Array.from(rootDoc.querySelectorAll('img[src],img[data-src]'))
.map((x) => [x.getAttribute('src'), x.getAttribute('data-src'), x.getAttribute('alt')])
.forEach(([u1, u2, alt]) => {
let absUrl;
if (u1) {
try {
const u1Txt = new URL(u1, snapshot.rebase || snapshot.href).toString();
imgSet.add(u1Txt);
absUrl = u1Txt;
}
catch (err) {
// void 0;
}
}
if (u2) {
try {
const u2Txt = new URL(u2, snapshot.rebase || snapshot.href).toString();
imgSet.add(u2Txt);
absUrl = u2Txt;
}
catch (err) {
// void 0;
}
}
if (absUrl) {
rebuiltImgs.push({
src: absUrl,
alt
});
}
});
const r = {
...snapshot,
title: snapshot.title || jsdom.window.document.title,
description: snapshot.description ||
(jsdom.window.document.head?.querySelector('meta[name="description"]')?.getAttribute('content') ?? ''),
parsed,
html: rootDoc.documentElement.outerHTML,
text: textChunks.join('\n'),
imgs: (snapshot.imgs || rebuiltImgs)?.filter((x) => imgSet.has(x.src)) || [],
};
const dt = Date.now() - t0;
if (dt > 1000) {
this.logger.warn(`Performance issue: Narrowing snapshot took ${dt}ms`, { url: snapshot.href, dt });
}
return r;
}
async inferSnapshot(snapshot) {
const t0 = Date.now();
const extendedSnapshot = { ...snapshot };
try {
const jsdom = this.linkedom.parseHTML(snapshot.html);
jsdom.window.document.querySelectorAll('svg').forEach((x) => x.innerHTML = '');
const links = Array.from(jsdom.window.document.querySelectorAll('a[href]'))
.map((x) => [x.textContent.replace(/\s+/g, ' ').trim(), x.getAttribute('href'),])
.map(([text, href]) => {
if (!href) {
return undefined;
}
try {
const parsed = new URL(href, snapshot.rebase || snapshot.href);
return [text, parsed.toString()];
}
catch (err) {
return undefined;
}
})
.filter(Boolean);
extendedSnapshot.links = links;
const imgs = Array.from(jsdom.window.document.querySelectorAll('img[src],img[data-src]'))
.map((x) => {
let linkPreferredSrc = x.getAttribute('src') || '';
if (linkPreferredSrc.startsWith('data:')) {
const dataSrc = x.getAttribute('data-src') || '';
if (dataSrc && !dataSrc.startsWith('data:')) {
linkPreferredSrc = dataSrc;
}
}
return {
src: new URL(linkPreferredSrc, snapshot.rebase || snapshot.href).toString(),
width: parseInt(x.getAttribute('width') || '0'),
height: parseInt(x.getAttribute('height') || '0'),
alt: x.getAttribute('alt') || x.getAttribute('title'),
};
});
extendedSnapshot.imgs = imgs;
}
catch (_err) {
void 0;
}
const dt = Date.now() - t0;
if (dt > 1000) {
this.logger.warn(`Performance issue: Inferring snapshot took ${dt}ms`, { url: snapshot.href, dt });
}
return extendedSnapshot;
}
cleanRedundantEmptyLines(text) {
const lines = text.split(/\r?\n/g);
const mappedFlag = lines.map((line) => Boolean(line.trim()));
return lines.filter((_line, i) => mappedFlag[i] || mappedFlag[i - 1]).join('\n');
}
async cleanHTMLforLMs(sourceHTML, ...discardSelectors) {
const t0 = Date.now();
let jsdom = this.linkedom.parseHTML(sourceHTML);
if (!jsdom.window.document.documentElement) {
jsdom = this.linkedom.parseHTML(`<html><body>${sourceHTML}</body></html>`);
}
for (const rl of discardSelectors) {
jsdom.window.document.querySelectorAll(rl).forEach((x) => x.remove());
}
jsdom.window.document.querySelectorAll('img[src],img[data-src]').forEach((x) => {
const src = x.getAttribute('src') || x.getAttribute('data-src');
if (src?.startsWith('data:')) {
x.setAttribute('src', 'blob:opaque');
}
x.removeAttribute('data-src');
x.removeAttribute('srcset');
});
jsdom.window.document.querySelectorAll('[class]').forEach((x) => {
const classes = x.getAttribute('class')?.split(/\s+/g) || [];
const newClasses = classes.filter((c) => !tailwind_classes_1.tailwindClasses.has(c));
x.setAttribute('class', newClasses.join(' '));
});
jsdom.window.document.querySelectorAll('[style]').forEach((x) => {
const style = x.getAttribute('style')?.toLocaleLowerCase() || '';
if (style.startsWith('display: none')) {
return;
}
x.removeAttribute('style');
});
const treeWalker = jsdom.window.document.createTreeWalker(jsdom.window.document, // Start from the root document
0x80 // Only show comment nodes
);
let currentNode;
while ((currentNode = treeWalker.nextNode())) {
currentNode.parentNode?.removeChild(currentNode); // Remove each comment node
}
jsdom.window.document.querySelectorAll('*').forEach((x) => {
const attrs = x.getAttributeNames();
for (const attr of attrs) {
if (attr.startsWith('data-') || attr.startsWith('aria-')) {
x.removeAttribute(attr);
}
}
});
const final = this.cleanRedundantEmptyLines(jsdom.window.document.documentElement.outerHTML);
const dt = Date.now() - t0;
if (dt > 1000) {
this.logger.warn(`Performance issue: Cleaning HTML for LMs took ${dt}ms`, { dt });
}
return final;
}
snippetToElement(snippet, url) {
const parsed = this.linkedom.parseHTML(snippet || '<html><body></body></html>');
// Hack for turndown gfm table plugin.
parsed.window.document.querySelectorAll('table').forEach((x) => {
Object.defineProperty(x, 'rows', { value: Array.from(x.querySelectorAll('tr')), enumerable: true });
});
Object.defineProperty(parsed.window.document.documentElement, 'cloneNode', {
value: function () { return this; },
});
return parsed.window.document.documentElement;
}
runTurndown(turndownService, html) {
const t0 = Date.now();
try {
return turndownService.turndown(html);
}
finally {
const dt = Date.now() - t0;
if (dt > 1000) {
this.logger.warn(`Performance issue: Turndown took ${dt}ms`, { dt });
}
}
}
async analyzeHTMLTextLite(sourceHTML) {
let jsdom = this.linkedom.parseHTML(sourceHTML);
if (!jsdom.window.document.documentElement) {
jsdom = this.linkedom.parseHTML(`<html><body>${sourceHTML}</body></html>`);
}
jsdom.window.document.querySelectorAll('script,style,link,svg').forEach((s) => s.remove());
const text = jsdom.window.document.body.innerText || '';
return {
title: jsdom.window.document.title,
text,
tokens: (0, openai_1.countGPTToken)(text.replaceAll(/[\s\r\n\t]+/g, ' ')),
};
}
};
exports.JSDomControl = JSDomControl;
__decorate([
(0, threaded_1.Threaded)(),
__metadata("design:type", Function),
__metadata("design:paramtypes", [Object, Object]),
__metadata("design:returntype", Promise)
], JSDomControl.prototype, "actualNarrowSnapshot", null);
__decorate([
(0, threaded_1.Threaded)(),
__metadata("design:type", Function),
__metadata("design:paramtypes", [Object]),
__metadata("design:returntype", Promise)
], JSDomControl.prototype, "inferSnapshot", null);
__decorate([
(0, threaded_1.Threaded)(),
__metadata("design:type", Function),
__metadata("design:paramtypes", [String, String]),
__metadata("design:returntype", Promise)
], JSDomControl.prototype, "cleanHTMLforLMs", null);
__decorate([
(0, threaded_1.Threaded)(),
__metadata("design:type", Function),
__metadata("design:paramtypes", [String]),
__metadata("design:returntype", Promise)
], JSDomControl.prototype, "analyzeHTMLTextLite", null);
exports.JSDomControl = JSDomControl = __decorate([
(0, tsyringe_1.singleton)(),
__metadata("design:paramtypes", [logger_1.GlobalLogger])
], JSDomControl);
const jsdomControl = tsyringe_1.container.resolve(JSDomControl);
exports.default = jsdomControl;
//# sourceMappingURL=jsdom.js.map |