🚧 Work in progress

server/lambda/find-url-ip.js

@@ -7,7 +7,6 @@ exports.handler = function (event, context, callback) {
   .replaceAll('https://', '')
   .replaceAll('http://', '');
   dns.lookup(address, (err, ip, family) => {
-    console.log(err);
     if (err) {
       callback(null, {
         statusCode: 405,

server/lambda/web-check.js

@@ -0,0 +1,71 @@
+const fetch = require('node-fetch');
+
+
+const endpoints = {
+  dnsRecords: 'https://api.securitytrails.com/v1/domain/{address}',
+  subDomains: 'https://api.securitytrails.com/v1/domain/{address}/subdomains?include_inactive=true',
+};
+
+const apiKeys = {
+  shodan: process.env.SHODAN_API_KEY,
+  securityTrails: process.env.SECURITY_TRAILS_API_KEY,
+};
+
+const makeEndpoint = (endpoint, address) => endpoint.replace('{address}', address);
+
+const errorObject = (msg, status) => {
+  return {
+    statusCode: status || 500,
+    body: JSON.stringify({ error: true, errorMsg: msg }),
+  }
+};
+
+/* Fetches list of DNS records for a given URL from SecurityTrails API */
+const getDnsInfo = async (url) => {
+  const stOptions = {
+    method: 'GET',
+    headers: { Accept: 'application/json', APIKEY: apiKeys.securityTrails }
+  };
+  const dnsInfoRequest = await fetch(makeEndpoint(endpoints.dnsRecords, url), stOptions);
+  const dnsInfoResponse = await dnsInfoRequest.json();
+  if (dnsInfoResponse) return null;
+  return dnsInfoResponse?.current_dns;
+};
+
+/* Fetches a list of a domain's sub-domains from SecurityTrails API */
+const getSubDomains = async (url) => {
+  const stOptions = {
+    method: 'GET',
+    headers: { Accept: 'application/json', APIKEY: apiKeys.securityTrails }
+  };
+  const subDomainRequest = await fetch(makeEndpoint(endpoints.subDomains, url), stOptions);
+  const subDomainResponse = await subDomainRequest.json();
+  if (!subDomainResponse.subdomains) return null;
+  return {
+    count: subDomainResponse?.subdomain_count,
+    list: subDomainResponse?.subdomains,
+  };
+};
+
+exports.handler = async (event, context) => {
+  const addressParam = event.queryStringParameters.address;
+  if (!addressParam) return errorObject('An address must be specified');
+  const address = decodeURIComponent(addressParam)
+    .replaceAll('https://', '')
+    .replaceAll('http://', '');
+
+  try {
+    const results = {};
+    if (apiKeys.securityTrails) {
+      results.dnsRecords = await getDnsInfo(address);
+      results.subDomains = await getSubDomains(address);
+    }
+
+    return {
+      statusCode: 200,
+      body: JSON.stringify(results),
+    };
+  } catch (error) {
+    return errorObject('Failed to fetch data');
+  }
+};

src/pages/Results.tsx

@@ -118,6 +118,26 @@ const Results = (): JSX.Element => {
     }
   }, [ipAddress]);
   
+  /* Get WhoIs info for a given domain name */
+  useEffect(() => {
+    const applyWhoIsResults = (response: any) => {
+      console.log('WhoIs Response', response);
+    }
+    const fetchWhoIsData = () => {
+      const apiKey = keys.whoApi;
+      fetch(`https://api.whoapi.com/?domain=${address}&r=whois&apikey=${apiKey}`)
+        .then(response => response.json())
+        .then(response => {
+          if (!response.error) applyWhoIsResults(response)
+        })
+        .catch(err => console.error(err));
+    };
+    
+    if (addressType === 'url') {
+      fetchWhoIsData();
+    }
+  }, [addressType, address]);
+
   return (
     <ResultsOuter>
       <Header as="header">

src/utils/address-type-checker.ts

@@ -8,7 +8,7 @@ export type AddressType = 'ipV4' | 'ipV6' | 'url' | 'err' | 'empt';
 /* Checks if a given string looks like a URL */
 const isUrl = (value: string):boolean => {
   const urlRegex= new RegExp(''
-    + /(?:(?:(https?|ftp):)?\/\/)/.source
+    // + /(?:(?:(https?|ftp):)?\/\/)/.source
     + /(?:([^:\n\r]+):([^@\n\r]+)@)?/.source
     + /(?:(?:www\.)?([^/\n\r]+))/.source
     + /(\/[^?\n\r]+)?/.source

src/utils/get-keys.ts

@@ -1,6 +1,7 @@
 
 const keys = {
   shodan: process.env.SHODAN_API_KEY,
+  whoApi: process.env.WHO_API_KEY,
 };
 
 export default keys;