78 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			78 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
| "use strict";
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| 
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| const
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|   { IncomingWebhook } = require('@slack/client'),
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|   kubernetesSiteRoot = 'https://kubernetes.io',
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|   fetch = require('node-fetch').default,
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|   { SLACK_WEBHOOK_URL } = process.env;
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| 
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| const webhook = new IncomingWebhook(SLACK_WEBHOOK_URL);
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| 
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| // A random smattering of Kubernetes documentation pages
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| // We can add as many pages here as we'd like
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| const kubernetesEndpoints = [
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|   'docs/home',
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|   'docs/tutorials/configuration/configure-redis-using-configmap',
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| 
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| ]
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| 
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| // Ensure that the SLACK_WEBHOOK_URL environment variable is set
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| const checkEnv = () => {
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|   if (!SLACK_WEBHOOK_URL) {
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|     return {
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|       statusCode: 422,
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|       body: "[FAILURE] The Slack webhook URL must be set via the SLACK_WEBHOOK_URL environment variable"
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|     }
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|   }
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| }
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| 
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| // This function posts a warning message to Slack
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| const sendSlackMessage = (msg) => {
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|   const slackMessageObject = {
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|     username: "noindex checker",
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|     text: msg
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|   }
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| 
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|   // Send the message to the webhook
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|   webhook.send(slackMessageObject, (err, res) => {
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|     return (err) ? { statusCode: 422, body: `[ERROR] Slack webhook error: ${err}` } :
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|       { statusCode: 200, body: `[SUCCESS] Response received from Slack: ${JSON.stringify(res)}` };
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|   });
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| }
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| 
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| // Iterate through each Kubernetes endpoint to check for noindex headers
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| const checkEndpoints = () => {
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|   kubernetesEndpoints.forEach((endpoint) => {
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|     const url = `${kubernetesSiteRoot}/${endpoint}`;
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| 
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|     fetch(url)
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|       .then(res => {
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|         const headers = res.headers;
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| 
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|         if ('x-robots-tag' in headers.raw() && (headers.get('x-robots-tag') == 'noindex')) {
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|           const msg = `[WARNING] "X-Robots-Tag: noindex" header found on the following page: ${url}`;
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| 
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|           // Send Slack notification
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|           sendSlackMessage(msg);
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| 
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|           return { statusCode: 404, body: msg };
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|         } else {
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|           const msg = `[SUCCESS] No improper X-Robots-Tag: noindex headers found on ${url}`;
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|           
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|           return { statusCode: 200, body: msg };
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|         }
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|       })
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|       .catch(err => {
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|         return { statusCode: 422, body: err };
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|       });
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|   });
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| }
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| 
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| // The handler function
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| exports.handler = async (event, context) => {
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|   checkEnv();
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| 
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|   // Below are the various deploy succeeded checks
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|   checkEndpoints();
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| }
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