allowing cors

index.js

@@ -1,5 +1,6 @@
 require('dotenv').config();
 const express = require('express');
+const cors = require('cors');
 const axios = require('axios');
 const { createHash } = require('crypto');
 const archiver = require('archiver');
@@ -13,6 +14,8 @@ const host = process.env.HOST || 'localhost';
 
 // Middleware to parse JSON requests
 app.use(express.json());
+// Middleware to enable CORS
+app.use(cors());
 
 // Set up the allowed domains (replace with your specific domains)
 const allowedDomains = process.env.ALLOWED_DOMAINS.split(',');

index.min.js

@@ -1 +1 @@
-require("dotenv").config();const express=require("express"),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"),app=express(),port=process.env.PORT||3e3,host=process.env.HOST||"localhost";app.use(express.json());const allowedDomains=process.env.ALLOWED_DOMAINS.split(",");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(rateLimit({windowMs:6e4,max:10})),app.get("/",((req,res)=>{res.send("Hello There!")})),app.post("/hash",(async(req,res)=>{try{console.log("Request:",req.body);let{url:url}=req.body;if(!url)return res.status(400).json({error:"Missing URL in the request parameters"});Array.isArray(url)||(url=[url]);const promises=url.map((async url=>{const hashedContent=await fetchAndHashContent(url);return{url:url,fileHash:await hashContent(Buffer.from(hashedContent,"utf-8"))}}));let results=await Promise.all(promises);results=results.reduce(((acc,{url:url,fileHash:fileHash})=>(acc[url]=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}:${port}`)})),module.exports=app;
+require("dotenv").config();const express=require("express"),cors=require("cors"),axios=require("axios"),{createHash:createHash}=require("crypto"),archiver=require("archiver"),rateLimit=require("express-rate-limit"),{parse:parseUrl}=require("url"),{parse:parseHtml}=require("node-html-parser"),app=express(),port=process.env.PORT||3e3,host=process.env.HOST||"localhost";app.use(express.json()),app.use(cors());const allowedDomains=process.env.ALLOWED_DOMAINS.split(",");async function hashContent(content){const hash=createHash("sha256");return hash.update(content),hash.digest("hex")}async function fetchAndHashContent(url,visitedUrls=new Set){if(visitedUrls.has(url))return"";visitedUrls.add(url);const content=(await axios.get(url,{responseType:"arraybuffer",timeout:1e4})).data.toString("utf-8"),linkedResources=parseHtml(content).querySelectorAll('link[rel="stylesheet"], script[src]');return`${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(rateLimit({windowMs:6e4,max:10})),app.get("/",((req,res)=>{res.send("Hello There!")})),app.post("/hash",(async(req,res)=>{try{console.log("Request:",req.body);let{url:url}=req.body;if(!url)return res.status(400).json({error:"Missing URL in the request parameters"});Array.isArray(url)||(url=[url]);const promises=url.map((async url=>{const hashedContent=await fetchAndHashContent(url);return{url:url,fileHash:await hashContent(Buffer.from(hashedContent,"utf-8"))}}));let results=await Promise.all(promises);results=results.reduce(((acc,{url:url,fileHash:fileHash})=>(acc[url]=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;

package-lock.json

@@ -11,6 +11,7 @@
       "dependencies": {
         "archiver": "^6.0.1",
         "axios": "^1.6.2",
+        "cors": "^2.8.5",
         "crypto": "^1.0.1",
         "express": "^4.18.2",
         "express-rate-limit": "^7.1.5",
@@ -303,6 +304,18 @@
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz",
       "integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ=="
     },
+    "node_modules/cors": {
+      "version": "2.8.5",
+      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
+      "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==",
+      "dependencies": {
+        "object-assign": "^4",
+        "vary": "^1"
+      },
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
     "node_modules/crc-32": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/crc-32/-/crc-32-1.2.2.tgz",
@@ -1134,6 +1147,14 @@
         "url": "https://github.com/fb55/nth-check?sponsor=1"
       }
     },
+    "node_modules/object-assign": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
+      "integrity": "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg==",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/object-inspect": {
       "version": "1.13.1",
       "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.1.tgz",

package.json

@@ -12,6 +12,7 @@
   "dependencies": {
     "archiver": "^6.0.1",
     "axios": "^1.6.2",
+    "cors": "^2.8.5",
     "crypto": "^1.0.1",
     "express": "^4.18.2",
     "express-rate-limit": "^7.1.5",

vercel.json

@@ -1,15 +0,0 @@
-{
-  "version": 2,
-  "builds": [
-    {
-      "src": "index.js",
-      "use": "@now/node"
-    }
-  ],
-  "routes": [
-    {
-      "src": "/(.*)",
-      "dest": "index.js"
-    }
-  ]
-}