103 lines
2.7 KiB
JavaScript
103 lines
2.7 KiB
JavaScript
#!/usr/bin/env node
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/**
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* Monitor network requests
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* Usage: node network.js --url https://example.com [--types xhr,fetch] [--output requests.json]
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*/
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import { getBrowser, getPage, closeBrowser, parseArgs, outputJSON, outputError } from './lib/browser.js';
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import fs from 'fs/promises';
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async function monitorNetwork() {
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const args = parseArgs(process.argv.slice(2));
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if (!args.url) {
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outputError(new Error('--url is required'));
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return;
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}
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try {
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const browser = await getBrowser({
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headless: args.headless !== 'false'
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});
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const page = await getPage(browser);
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const requests = [];
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const filterTypes = args.types ? args.types.split(',').map(t => t.toLowerCase()) : null;
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// Monitor requests
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page.on('request', (request) => {
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const resourceType = request.resourceType().toLowerCase();
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if (!filterTypes || filterTypes.includes(resourceType)) {
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requests.push({
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id: request._requestId || requests.length,
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url: request.url(),
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method: request.method(),
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resourceType: resourceType,
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headers: request.headers(),
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postData: request.postData(),
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timestamp: Date.now()
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});
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}
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});
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// Monitor responses
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const responses = new Map();
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page.on('response', async (response) => {
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const request = response.request();
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const resourceType = request.resourceType().toLowerCase();
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if (!filterTypes || filterTypes.includes(resourceType)) {
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try {
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responses.set(request._requestId || request.url(), {
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status: response.status(),
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statusText: response.statusText(),
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headers: response.headers(),
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fromCache: response.fromCache(),
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timing: response.timing()
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});
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} catch (e) {
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// Ignore errors for some response types
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}
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}
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});
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// Navigate
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await page.goto(args.url, {
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waitUntil: args['wait-until'] || 'networkidle2'
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});
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// Merge requests with responses
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const combined = requests.map(req => ({
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...req,
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response: responses.get(req.id) || responses.get(req.url) || null
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}));
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const result = {
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success: true,
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url: page.url(),
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requestCount: combined.length,
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requests: combined
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};
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if (args.output) {
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await fs.writeFile(args.output, JSON.stringify(result, null, 2));
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outputJSON({
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success: true,
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output: args.output,
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requestCount: combined.length
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});
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} else {
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outputJSON(result);
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}
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if (args.close !== 'false') {
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await closeBrowser();
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}
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} catch (error) {
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outputError(error);
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}
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}
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monitorNetwork();
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