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fix: pdf detection

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This commit is contained in:
Yanlong Wang 2024-09-08 10:14:34 +08:00
parent 94170db060
commit 607407f740
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GPG Key ID: C0A623C0BADF9F37
2 changed files with 18 additions and 13 deletions
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29
backend/functions/src/services/puppeteer.ts
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@ -11,6 +11,7 @@ import puppeteerBlockResources from 'puppeteer-extra-plugin-block-resources';
import puppeteerPageProxy from 'puppeteer-extra-plugin-page-proxy';
import { SecurityCompromiseError, ServiceCrashedError } from '../shared/lib/errors';
import { TimeoutError } from 'puppeteer';
import _ from 'lodash';
const tldExtract = require('tld-extract');
const READABILITY_JS = fs.readFileSync(require.resolve('@mozilla/readability/Readability.js'), 'utf-8');
@ -114,13 +115,6 @@ function briefImgs(elem) {
};
});
}
function briefPDFs() {
const pdfTags = Array.from(document.querySelectorAll('embed[type="application/pdf"]'));
return pdfTags.map((x)=> {
return x.src === 'about:blank' ? document.location.href : x.src;
});
}
function getMaxDepthAndCountUsingTreeWalker(root) {
let maxDepth = 0;
let currentDepth = 0;
@ -178,7 +172,6 @@ function giveSnapshot(stopActiveSnapshot) {
text: document.body?.innerText,
parsed: parsed,
imgs: [],
pdfs: briefPDFs(),
maxElemDepth: domAnalysis.maxDepth,
elemCount: domAnalysis.elementCount,
};
@ -324,7 +317,7 @@ export class PuppeteerControl extends AsyncService {
}
t0 ??= Date.now();
const requestUrl = req.url();
if (!requestUrl.startsWith("http:") && !requestUrl.startsWith("https:") && requestUrl !== 'about:blank') {
if (!requestUrl.startsWith('http:') && !requestUrl.startsWith('https:') && !requestUrl.startsWith('chrome-extension:') && requestUrl !== 'about:blank') {
return req.abort('blockedbyclient', 1000);
}
const tldParsed = tldExtract(requestUrl);
@ -469,7 +462,19 @@ document.addEventListener('load', handlePageLoad);
let snapshot: PageSnapshot | undefined;
let screenshot: Buffer | undefined;
let pageshot: Buffer | undefined;
const pdfUrls: string[] = [];
const page = await this.getNextPage();
page.on('response', (resp) => {
if (!resp.ok()) {
return;
}
const headers = resp.headers();
const url = resp.url();
const contentType = headers['content-type'];
if (contentType?.toLowerCase().includes('application/pdf')) {
pdfUrls.push(url);
}
});
const sn = this.snMap.get(page);
this.logger.info(`Page ${sn}: Scraping ${url}`, { url });
@ -619,7 +624,7 @@ document.addEventListener('load', handlePageLoad);
this.logger.info(`Page ${sn}: Snapshot of ${url} done`, { url, title: snapshot?.title, href: snapshot?.href });
this.emit(
'crawled',
{ ...snapshot, screenshot, pageshot },
{ ...snapshot, pdfs: _.uniq(pdfUrls), screenshot, pageshot, },
{ ...options, url: parsedUrl }
);
}
@ -672,7 +677,7 @@ document.addEventListener('load', handlePageLoad);
}
throw new AssertionFailureError(`Could not extract any meaningful content from the page`);
}
yield { ...snapshot, screenshot, pageshot } as PageSnapshot;
yield { ...snapshot, pdfs: _.uniq(pdfUrls), screenshot, pageshot } as PageSnapshot;
break;
}
if (options?.favorScreenshot && snapshot?.title && snapshot?.html !== lastHTML) {
@ -681,7 +686,7 @@ document.addEventListener('load', handlePageLoad);
lastHTML = snapshot.html;
}
if (snapshot || screenshot) {
yield { ...snapshot, screenshot, pageshot } as PageSnapshot;
yield { ...snapshot, pdfs: _.uniq(pdfUrls), screenshot, pageshot } as PageSnapshot;
}
if (error) {
throw error;

2
thinapps-shared

@ -1 +1 @@
Subproject commit 4af413f68207157d099ee99a2c056298b833dcd1
Subproject commit d2b0fbf184b4c77e80e8d1dd36b3f4d1807e0e09