From 02e0e45bc461d2b8880d0fcf666b4328fa5915c1 Mon Sep 17 00:00:00 2001
From: Karol Wypchlo <kwypchlo@gmail.com>
Date: Mon, 24 May 2021 16:27:30 +0200
Subject: [PATCH] add new critical checks

---
 packages/health-check/src/checks/critical.js | 71 +++++++++++++-------
 1 file changed, 45 insertions(+), 26 deletions(-)

diff --git a/packages/health-check/src/checks/critical.js b/packages/health-check/src/checks/critical.js
index 4fe48f39..a39ad8a2 100644
--- a/packages/health-check/src/checks/critical.js
+++ b/packages/health-check/src/checks/critical.js
@@ -1,7 +1,10 @@
 const got = require("got");
 const FormData = require("form-data");
-const { StatusCodes } = require("http-status-codes");
 const { calculateElapsedTime, getResponseContent } = require("../utils");
+const { SkynetClient } = require("skynet-js");
+
+const skynetClient = new SkynetClient(process.env.SKYNET_PORTAL_API);
+const exampleSkylink = "AACogzrAimYPG42tDOKhS3lXZD8YvlF8Q8R17afe95iV2Q";
 
 // uploadCheck returns the result of uploading a sample file
 async function uploadCheck(done) {
@@ -25,37 +28,33 @@ async function uploadCheck(done) {
     data.ip = error?.response?.ip ?? null;
   }
 
-  done({
-    name: "upload_file",
-    time: calculateElapsedTime(time),
-    ...data,
-  });
+  done({ name: "upload_file", time: calculateElapsedTime(time), ...data });
+}
+
+// websiteCheck checks whether the main website is working
+async function websiteCheck(done) {
+  return genericAccessCheck("website", process.env.SKYNET_PORTAL_API, done);
 }
 
 // downloadCheck returns the result of downloading the hard coded link
 async function downloadCheck(done) {
-  const time = process.hrtime();
-  const skylink = "AACogzrAimYPG42tDOKhS3lXZD8YvlF8Q8R17afe95iV2Q";
-  const data = { up: false };
+  const url = await skynetClient.getSkylinkUrl(exampleSkylink);
 
-  try {
-    const response = await got(`${process.env.SKYNET_PORTAL_API}/${skylink}?nocache=true`);
+  return genericAccessCheck("skylink", url, done);
+}
 
-    data.statusCode = response.statusCode;
-    data.up = true;
-    data.ip = response.ip;
-  } catch (error) {
-    data.statusCode = error?.response?.statusCode || error.statusCode || error.status;
-    data.errorMessage = error.message;
-    data.errorResponseContent = getResponseContent(error.response);
-    data.ip = error?.response?.ip ?? null;
-  }
+// skylinkSubdomainCheck returns the result of downloading the hard coded link via subdomain
+async function skylinkSubdomainCheck(done) {
+  const url = await skynetClient.getSkylinkUrl(exampleSkylink, { subdomain: true });
 
-  done({
-    name: "download_file",
-    time: calculateElapsedTime(time),
-    ...data,
-  });
+  return genericAccessCheck("skylink_via_subdomain", done);
+}
+
+// skylinkSubdomainCheck returns the result of downloading the hard coded link via subdomain
+async function handshakeSubdomainCheck(done) {
+  const url = await skynetClient.getHnsUrl("note-to-self", { subdomain: true });
+
+  return genericAccessCheck("hns_via_subdomain", url, done);
 }
 
 async function accountHealthCheck(done) {
@@ -83,7 +82,27 @@ async function accountHealthCheck(done) {
   });
 }
 
-const checks = [uploadCheck, downloadCheck];
+async function genericAccessCheck(name, url, done) {
+  const time = process.hrtime();
+  const data = { up: false, url };
+
+  try {
+    const response = await got(url, { headers: { cookie: "nocache=true" } });
+
+    data.statusCode = response.statusCode;
+    data.up = true;
+    data.ip = response.ip;
+  } catch (error) {
+    data.statusCode = error?.response?.statusCode || error.statusCode || error.status;
+    data.errorMessage = error.message;
+    data.errorResponseContent = getResponseContent(error.response);
+    data.ip = error?.response?.ip ?? null;
+  }
+
+  done({ name, time: calculateElapsedTime(time), ...data });
+}
+
+const checks = [uploadCheck, websiteCheck, downloadCheck, skylinkSubdomainCheck, handshakeSubdomainCheck];
 
 if (process.env.ACCOUNTS_ENABLED) {
   checks.push(accountHealthCheck);