mirror of https://github.com/lissy93/dashy
83 lines
2.6 KiB
JavaScript
83 lines
2.6 KiB
JavaScript
/**
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* Endpoint called from the client, to execute action buttons,
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* by making GET request to web hook URL, and returning response
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*/
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const axios = require('axios').default;
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const https = require('https');
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/* Makes human-readable response text for failed check */
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const makeErrorMessage = (data) => `❌ Service Unavailable: ${data.hostname || 'Server'} `
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+ `resulted in ${data.code || 'a fatal error'} ${data.errno ? `(${data.errno})` : ''}`;
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/* Kicks of a HTTP request, then formats and renders results */
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const makeRequest = (url, options, render) => {
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const {
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headers, enableInsecure, maxRedirects,
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} = options;
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const startTime = new Date();
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// Create HTTPS agent for request
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const requestMaker = axios.create({
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httpsAgent: new https.Agent({
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rejectUnauthorized: !enableInsecure,
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}),
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});
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// Make request, with params
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requestMaker.request({
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url,
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headers,
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maxRedirects,
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}).then((response) => ({
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statusCode: response.status,
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responseText: response.statusText,
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successStatus: true,
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timeTaken: (new Date() - startTime),
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})).catch((error) => ({
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successStatus: false,
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message: makeErrorMessage(error),
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})).then((results) => {
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// Request completed (either successfully, or failed) - render results
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render(JSON.stringify(results));
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});
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};
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const decodeHeaders = (maybeHeaders) => {
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if (!maybeHeaders) return {};
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const decodedHeaders = decodeURIComponent(maybeHeaders);
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let parsedHeaders = {};
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try {
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parsedHeaders = JSON.parse(decodedHeaders);
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} catch (e) { /* Not valid JSON, will just return false */ }
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return parsedHeaders;
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};
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/* Returned if the URL param is not present or correct */
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const immediateError = (render) => {
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render(JSON.stringify({
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successStatus: false,
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message: '❌ Missing URL or Malformed Options',
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}));
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};
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/* Main function, will check if a URL present, and call function */
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module.exports = (paramStr, render) => {
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// If no parameters passed, then fail
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if (!paramStr || !paramStr.includes('=')) {
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immediateError(render);
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return;
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}
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// Prepare the parameters, which are got from the URL
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const params = new URLSearchParams(paramStr);
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const url = decodeURIComponent(params.get('url'));
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const maxRedirects = decodeURIComponent(params.get('maxRedirects')) || 0;
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const headers = decodeHeaders(params.get('headers'));
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const enableInsecure = !!params.get('enableInsecure');
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// Check target URL is present
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if (!url || url === 'undefined') immediateError(render);
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// Put options together
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const options = {
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headers, enableInsecure, maxRedirects,
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};
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// Make the request
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makeRequest(url, options, render);
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};
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