RanchiMall/utility-api
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added URL formatting

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This commit is contained in:
sairaj mote 2023-12-08 17:52:38 +05:30
parent ef092d13b3
commit ee94988cd0
2 changed files with 19 additions and 4 deletions
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21
index.js
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@ -5,7 +5,7 @@ const axios = require('axios');
const { createHash } = require('crypto');
const archiver = require('archiver');
const rateLimit = require('express-rate-limit');
const { parse: parseUrl } = require('url');
const { parse: parseUrl, URL } = require('url');
const { parse: parseHtml } = require('node-html-parser');
// Set up the allowed domains (replace with your specific domains)
@ -36,6 +36,19 @@ app.use(
app.get('/', (req, res) => {
res.send('Hello There!');
})
function parseUrlWithoutHashAndQuery(fullUrl) {
const parsedUrl = new URL(fullUrl);
// Set the hash and search/query to empty strings
parsedUrl.hash = '';
parsedUrl.search = '';
// Reconstruct the URL without hash and query
const urlWithoutHashAndQuery = parsedUrl.toString();
return urlWithoutHashAndQuery;
}
// hashContent function to hash the content of a file
async function hashContent(content) {
const hash = createHash('sha256');
@ -85,8 +98,10 @@ app.post('/hash', async (req, res) => {
if (!Array.isArray(urls))
urls = [urls];
const promises = urls.map(async (urls) => {
const hashedContent = await fetchAndHashContent(urls);
const promises = urls.map(async (url) => {
const urlWithoutHashAndQuery = parseUrlWithoutHashAndQuery(url);
console.log(url, `Fetching and hashing ${urlWithoutHashAndQuery}`);
const hashedContent = await fetchAndHashContent(urlWithoutHashAndQuery);
const fileHash = await hashContent(Buffer.from(hashedContent, 'utf-8'));
return { urls, fileHash };
});

2
index.min.js vendored
View File

@ -1 +1 @@
require("dotenv").config();const express=require("express"),cors=require("cors"),axios=require("axios"),{createHash:createHash}=require("crypto"),archiver=require("archiver"),rateLimit=require("express-rate-limit"),{parse:parseUrl}=require("url"),{parse:parseHtml}=require("node-html-parser"),allowedDomains=process.env.ALLOWED_DOMAINS.split(","),app=express();app.use(cors());const port=process.env.PORT||3e3,host=process.env.HOST||"0.0.0.0";async function hashContent(content){const hash=createHash("sha256");return hash.update(content),hash.digest("hex")}async function fetchAndHashContent(url,visitedUrls=new Set){if(visitedUrls.has(url))return"";visitedUrls.add(url);const content=(await axios.get(url,{responseType:"arraybuffer",timeout:1e4})).data.toString("utf-8"),linkedResources=parseHtml(content).querySelectorAll('link[rel="stylesheet"], script[src]');return`${content}_${(await Promise.all(linkedResources.map((async resource=>{const resourceUrl=parseUrl(resource.getAttribute("href")||resource.getAttribute("src"),!0);let absoluteResourceUrl=resourceUrl.href;resourceUrl.hostname||(resourceUrl.path.startsWith("/")||url.endsWith("/")||(url+="/"),absoluteResourceUrl=`${url}${resourceUrl.path}`);const resourceContent=await fetchAndHashContent(absoluteResourceUrl,visitedUrls);return`${resourceUrl.path}_${resourceContent}`})))).join("_")}`}async function downloadGitHubRepo(owner,repo){if(!owner||!repo)throw new Error("Missing owner or repo");const zipUrl=`https://github.com/${owner}/${repo}/archive/refs/heads/master.zip`;return(await axios.get(zipUrl,{responseType:"arraybuffer"})).data}app.use(express.json()),app.use(rateLimit({windowMs:6e4,max:10})),app.get("/",((req,res)=>{res.send("Hello There!")})),app.post("/hash",(async(req,res)=>{try{let{urls:urls}=req.body;if(!urls)return res.status(400).json({error:"Missing URL in the request parameters"});Array.isArray(urls)||(urls=[urls]);const promises=urls.map((async urls=>{const hashedContent=await fetchAndHashContent(urls);return{urls:urls,fileHash:await hashContent(Buffer.from(hashedContent,"utf-8"))}}));let results=await Promise.all(promises);results=results.reduce(((acc,{urls:urls,fileHash:fileHash})=>(acc[urls]=fileHash,acc)),{}),res.json(results)}catch(error){console.error("Error:",error.message),res.status(500).json({error:"Internal Server Error"})}})),app.post("/download-repos",(async(req,res)=>{try{let{urls:urls}=req.body;if(!urls)return res.status(400).json({error:"Missing urls in the request parameters"});Array.isArray(urls)||(urls=[urls]);const archive=archiver("zip");res.attachment("repos.zip");const downloadPromises=urls.map((async url=>{const[owner,name]=url.split("/").slice(-2);if(!owner||!name)return void console.error(`Invalid url format: ${url}`);const zipBuffer=await downloadGitHubRepo(owner,name);archive.append(zipBuffer,{name:`${owner}-${name}.zip`})}));await Promise.all(downloadPromises),archive.finalize(),archive.pipe(res)}catch(error){console.error("Error:",error.message),res.status(500).json({error:"Internal Server Error"})}})),app.listen(port,host,(()=>{console.log(`Server is running at http://${host}:${port}`)})),module.exports=app;
require("dotenv").config();const express=require("express"),cors=require("cors"),axios=require("axios"),{createHash:createHash}=require("crypto"),archiver=require("archiver"),rateLimit=require("express-rate-limit"),{parse:parseUrl,URL:URL}=require("url"),{parse:parseHtml}=require("node-html-parser"),allowedDomains=process.env.ALLOWED_DOMAINS.split(","),app=express();app.use(cors());const port=process.env.PORT||3e3,host=process.env.HOST||"0.0.0.0";function parseUrlWithoutHashAndQuery(fullUrl){const parsedUrl=new URL(fullUrl);parsedUrl.hash="",parsedUrl.search="";return parsedUrl.toString()}async function hashContent(content){const hash=createHash("sha256");return hash.update(content),hash.digest("hex")}async function fetchAndHashContent(url,visitedUrls=new Set){if(visitedUrls.has(url))return"";visitedUrls.add(url);const content=(await axios.get(url,{responseType:"arraybuffer",timeout:1e4})).data.toString("utf-8"),linkedResources=parseHtml(content).querySelectorAll('link[rel="stylesheet"], script[src]');return`${content}_${(await Promise.all(linkedResources.map((async resource=>{const resourceUrl=parseUrl(resource.getAttribute("href")||resource.getAttribute("src"),!0);let absoluteResourceUrl=resourceUrl.href;resourceUrl.hostname||(resourceUrl.path.startsWith("/")||url.endsWith("/")||(url+="/"),absoluteResourceUrl=`${url}${resourceUrl.path}`);const resourceContent=await fetchAndHashContent(absoluteResourceUrl,visitedUrls);return`${resourceUrl.path}_${resourceContent}`})))).join("_")}`}async function downloadGitHubRepo(owner,repo){if(!owner||!repo)throw new Error("Missing owner or repo");const zipUrl=`https://github.com/${owner}/${repo}/archive/refs/heads/master.zip`;return(await axios.get(zipUrl,{responseType:"arraybuffer"})).data}app.use(express.json()),app.use(rateLimit({windowMs:6e4,max:10})),app.get("/",((req,res)=>{res.send("Hello There!")})),app.post("/hash",(async(req,res)=>{try{let{urls:urls}=req.body;if(!urls)return res.status(400).json({error:"Missing URL in the request parameters"});Array.isArray(urls)||(urls=[urls]);const promises=urls.map((async url=>{const urlWithoutHashAndQuery=parseUrlWithoutHashAndQuery(url);console.log(url,`Fetching and hashing ${urlWithoutHashAndQuery}`);const hashedContent=await fetchAndHashContent(urlWithoutHashAndQuery),fileHash=await hashContent(Buffer.from(hashedContent,"utf-8"));return{urls:urls,fileHash:fileHash}}));let results=await Promise.all(promises);results=results.reduce(((acc,{urls:urls,fileHash:fileHash})=>(acc[urls]=fileHash,acc)),{}),res.json(results)}catch(error){console.error("Error:",error.message),res.status(500).json({error:"Internal Server Error"})}})),app.post("/download-repos",(async(req,res)=>{try{let{urls:urls}=req.body;if(!urls)return res.status(400).json({error:"Missing urls in the request parameters"});Array.isArray(urls)||(urls=[urls]);const archive=archiver("zip");res.attachment("repos.zip");const downloadPromises=urls.map((async url=>{const[owner,name]=url.split("/").slice(-2);if(!owner||!name)return void console.error(`Invalid url format: ${url}`);const zipBuffer=await downloadGitHubRepo(owner,name);archive.append(zipBuffer,{name:`${owner}-${name}.zip`})}));await Promise.all(downloadPromises),archive.finalize(),archive.pipe(res)}catch(error){console.error("Error:",error.message),res.status(500).json({error:"Internal Server Error"})}})),app.listen(port,host,(()=>{console.log(`Server is running at http://${host}:${port}`)})),module.exports=app;