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Update index.ts

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This commit is contained in:
Nicolas 2024-04-17 12:51:12 -07:00
parent 2eb81545fa
commit 871d5d91b0
1 changed files with 190 additions and 94 deletions
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192
apps/api/src/scraper/WebScraper/index.ts
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@ -49,7 +49,8 @@ export class WebScraperDataProvider {
const results: (Document | null)[] = new Array(urls.length).fill(null);
for (let i = 0; i < urls.length; i += this.concurrentRequests) {
const batchUrls = urls.slice(i, i + this.concurrentRequests);
await Promise.all(batchUrls.map(async (url, index) => {
await Promise.all(
batchUrls.map(async (url, index) => {
const result = await scrapSingleUrl(url, true);
processedUrls++;
if (inProgress) {
@ -61,7 +62,8 @@ export class WebScraperDataProvider {
});
}
results[i + index] = result;
}));
})
);
}
return results.filter((result) => result !== null) as Document[];
}
@ -102,26 +104,51 @@ export class WebScraperDataProvider {
// CACHING DOCUMENTS
// - parent document
const cachedParentDocumentString = await getValue('web-scraper-cache:' + this.normalizeUrl(this.urls[0]));
const cachedParentDocumentString = await getValue(
"web-scraper-cache:" + this.normalizeUrl(this.urls[0])
);
if (cachedParentDocumentString != null) {
let cachedParentDocument = JSON.parse(cachedParentDocumentString);
if (!cachedParentDocument.childrenLinks || cachedParentDocument.childrenLinks.length < links.length - 1) {
cachedParentDocument.childrenLinks = links.filter((link) => link !== this.urls[0]);
await setValue('web-scraper-cache:' + this.normalizeUrl(this.urls[0]), JSON.stringify(cachedParentDocument), 60 * 60 * 24 * 10); // 10 days
if (
!cachedParentDocument.childrenLinks ||
cachedParentDocument.childrenLinks.length < links.length - 1
) {
cachedParentDocument.childrenLinks = links.filter(
(link) => link !== this.urls[0]
);
await setValue(
"web-scraper-cache:" + this.normalizeUrl(this.urls[0]),
JSON.stringify(cachedParentDocument),
60 * 60 * 24 * 10
); // 10 days
}
} else {
let parentDocument = documents.filter((document) => this.normalizeUrl(document.metadata.sourceURL) === this.normalizeUrl(this.urls[0]))
let parentDocument = documents.filter(
(document) =>
this.normalizeUrl(document.metadata.sourceURL) ===
this.normalizeUrl(this.urls[0])
);
await this.setCachedDocuments(parentDocument, links);
}
await this.setCachedDocuments(documents.filter((document) => this.normalizeUrl(document.metadata.sourceURL) !== this.normalizeUrl(this.urls[0])), []);
await this.setCachedDocuments(
documents.filter(
(document) =>
this.normalizeUrl(document.metadata.sourceURL) !==
this.normalizeUrl(this.urls[0])
),
[]
);
documents = this.removeChildLinks(documents);
documents = documents.splice(0, this.limit);
return documents;
}
if (this.mode === "single_urls") {
let documents = await this.convertUrlsToDocuments(this.urls, inProgress);
let documents = await this.convertUrlsToDocuments(
this.urls,
inProgress
);
documents = this.replaceImgPathsWithAbsolutePaths(documents);
if (this.generateImgAltText) {
documents = await this.generatesImgAltText(documents);
@ -136,7 +163,10 @@ export class WebScraperDataProvider {
}
if (this.mode === "sitemap") {
const links = await getLinksFromSitemap(this.urls[0]);
let documents = await this.convertUrlsToDocuments(links.slice(0, this.limit), inProgress);
let documents = await this.convertUrlsToDocuments(
links.slice(0, this.limit),
inProgress
);
documents = await this.getSitemapData(this.urls[0], documents);
documents = this.replaceImgPathsWithAbsolutePaths(documents);
@ -153,11 +183,22 @@ export class WebScraperDataProvider {
return [];
}
let documents = await this.getCachedDocuments(this.urls.slice(0, this.limit));
let documents = await this.getCachedDocuments(
this.urls.slice(0, this.limit)
);
if (documents.length < this.limit) {
const newDocuments: Document[] = await this.getDocuments(false, inProgress);
newDocuments.forEach(doc => {
if (!documents.some(d => this.normalizeUrl(d.metadata.sourceURL) === this.normalizeUrl(doc.metadata?.sourceURL))) {
const newDocuments: Document[] = await this.getDocuments(
false,
inProgress
);
newDocuments.forEach((doc) => {
if (
!documents.some(
(d) =>
this.normalizeUrl(d.metadata.sourceURL) ===
this.normalizeUrl(doc.metadata?.sourceURL)
)
) {
documents.push(doc);
}
});
@ -173,17 +214,23 @@ export class WebScraperDataProvider {
const url = new URL(document.metadata.sourceURL);
const path = url.pathname;
if (this.excludes.length > 0 && this.excludes[0] !== '') {
if (this.excludes.length > 0 && this.excludes[0] !== "") {
// Check if the link should be excluded
if (this.excludes.some(excludePattern => new RegExp(excludePattern).test(path))) {
if (
this.excludes.some((excludePattern) =>
new RegExp(excludePattern).test(path)
)
) {
return false;
}
}
if (this.includes.length > 0 && this.includes[0] !== '') {
if (this.includes.length > 0 && this.includes[0] !== "") {
// Check if the link matches the include patterns, if any are specified
if (this.includes.length > 0) {
return this.includes.some(includePattern => new RegExp(includePattern).test(path));
return this.includes.some((includePattern) =>
new RegExp(includePattern).test(path)
);
}
}
return true;
@ -200,7 +247,7 @@ export class WebScraperDataProvider {
private removeChildLinks(documents: Document[]): Document[] {
for (let document of documents) {
if (document?.childrenLinks) delete document.childrenLinks;
};
}
return documents;
}
@ -210,10 +257,14 @@ export class WebScraperDataProvider {
continue;
}
const normalizedUrl = this.normalizeUrl(document.metadata.sourceURL);
await setValue('web-scraper-cache:' + normalizedUrl, JSON.stringify({
await setValue(
"web-scraper-cache:" + normalizedUrl,
JSON.stringify({
...document,
childrenLinks: childrenLinks || []
}), 60 * 60 * 24 * 10); // 10 days
childrenLinks: childrenLinks || [],
}),
60 * 60 * 24 * 10
); // 10 days
}
}
@ -221,8 +272,12 @@ export class WebScraperDataProvider {
let documents: Document[] = [];
for (const url of urls) {
const normalizedUrl = this.normalizeUrl(url);
console.log("Getting cached document for web-scraper-cache:" + normalizedUrl)
const cachedDocumentString = await getValue('web-scraper-cache:' + normalizedUrl);
console.log(
"Getting cached document for web-scraper-cache:" + normalizedUrl
);
const cachedDocumentString = await getValue(
"web-scraper-cache:" + normalizedUrl
);
if (cachedDocumentString) {
const cachedDocument = JSON.parse(cachedDocumentString);
documents.push(cachedDocument);
@ -230,10 +285,18 @@ export class WebScraperDataProvider {
// get children documents
for (const childUrl of cachedDocument.childrenLinks) {
const normalizedChildUrl = this.normalizeUrl(childUrl);
const childCachedDocumentString = await getValue('web-scraper-cache:' + normalizedChildUrl);
const childCachedDocumentString = await getValue(
"web-scraper-cache:" + normalizedChildUrl
);
if (childCachedDocumentString) {
const childCachedDocument = JSON.parse(childCachedDocumentString);
if (!documents.find((doc) => doc.metadata.sourceURL === childCachedDocument.metadata.sourceURL)) {
if (
!documents.find(
(doc) =>
doc.metadata.sourceURL ===
childCachedDocument.metadata.sourceURL
)
) {
documents.push(childCachedDocument);
}
}
@ -248,7 +311,7 @@ export class WebScraperDataProvider {
throw new Error("Urls are required");
}
console.log("options", options.crawlerOptions?.excludes)
console.log("options", options.crawlerOptions?.excludes);
this.urls = options.urls;
this.mode = options.mode;
this.concurrentRequests = options.concurrentRequests ?? 20;
@ -257,12 +320,11 @@ export class WebScraperDataProvider {
this.maxCrawledLinks = options.crawlerOptions?.maxCrawledLinks ?? 1000;
this.returnOnlyUrls = options.crawlerOptions?.returnOnlyUrls ?? false;
this.limit = options.crawlerOptions?.limit ?? 10000;
this.generateImgAltText = options.crawlerOptions?.generateImgAltText ?? false;
this.generateImgAltText =
options.crawlerOptions?.generateImgAltText ?? false;
//! @nicolas, for some reason this was being injected and breakign everything. Don't have time to find source of the issue so adding this check
this.excludes = this.excludes.filter(item => item !== '');
this.excludes = this.excludes.filter((item) => item !== "");
// make sure all urls start with https://
this.urls = this.urls.map((url) => {
@ -274,10 +336,14 @@ export class WebScraperDataProvider {
}
private async getSitemapData(baseUrl: string, documents: Document[]) {
const sitemapData = await fetchSitemapData(baseUrl)
const sitemapData = await fetchSitemapData(baseUrl);
if (sitemapData) {
for (let i = 0; i < documents.length; i++) {
const docInSitemapData = sitemapData.find((data) => this.normalizeUrl(data.loc) === this.normalizeUrl(documents[i].metadata.sourceURL))
const docInSitemapData = sitemapData.find(
(data) =>
this.normalizeUrl(data.loc) ===
this.normalizeUrl(documents[i].metadata.sourceURL)
);
if (docInSitemapData) {
let sitemapDocData: Partial<SitemapEntry> = {};
if (docInSitemapData.changefreq) {
@ -298,35 +364,60 @@ export class WebScraperDataProvider {
return documents;
}
generatesImgAltText = async (documents: Document[]): Promise<Document[]> => {
await Promise.all(documents.map(async (document) => {
await Promise.all(
documents.map(async (document) => {
const images = document.content.match(/!\[.*?\]\((.*?)\)/g) || [];
await Promise.all(images.map(async (image: string) => {
await Promise.all(
images.map(async (image: string) => {
let imageUrl = image.match(/\(([^)]+)\)/)[1];
let altText = image.match(/\[(.*?)\]/)[1];
if (!altText && !imageUrl.startsWith("data:image") && /\.(png|jpeg|gif|webp)$/.test(imageUrl)) {
if (
!altText &&
!imageUrl.startsWith("data:image") &&
/\.(png|jpeg|gif|webp)$/.test(imageUrl)
) {
const imageIndex = document.content.indexOf(image);
const contentLength = document.content.length;
let backText = document.content.substring(imageIndex + image.length, Math.min(imageIndex + image.length + 1000, contentLength));
let backText = document.content.substring(
imageIndex + image.length,
Math.min(imageIndex + image.length + 1000, contentLength)
);
let frontTextStartIndex = Math.max(imageIndex - 1000, 0);
let frontText = document.content.substring(frontTextStartIndex, imageIndex);
altText = await getImageDescription(imageUrl, backText, frontText);
let frontText = document.content.substring(
frontTextStartIndex,
imageIndex
);
altText = await getImageDescription(
imageUrl,
backText,
frontText
);
}
document.content = document.content.replace(image, `![${altText}](${imageUrl})`);
}));
}));
document.content = document.content.replace(
image,
`![${altText}](${imageUrl})`
);
})
);
})
);
return documents;
}
};
replaceImgPathsWithAbsolutePaths = (documents: Document[]): Document[] => {
documents.forEach(document => {
try {
documents.forEach((document) => {
const baseUrl = new URL(document.metadata.sourceURL).origin;
const images = document.content.match(/!\[.*?\]\(((?:[^()]+|\((?:[^()]+|\([^()]*\))*\))*)\)/g) || [];
const images =
document.content.match(
/!\[.*?\]\(((?:[^()]+|\((?:[^()]+|\([^()]*\))*\))*)\)/g
) || [];
images.forEach(image => {
images.forEach((image: string) => {
let imageUrl = image.match(/\(([^)]+)\)/)[1];
let altText = image.match(/\[(.*?)\]/)[1];
@ -339,11 +430,16 @@ export class WebScraperDataProvider {
}
}
document.content = document.content.replace(image, `![${altText}](${imageUrl})`);
document.content = document.content.replace(
image,
`![${altText}](${imageUrl})`
);
});
});
return documents;
} catch (error) {
return documents;
}
};
}