highcharts-export-server/dist/index.cjs

**Note:** If you use the public Export Server at [https://export.highcharts.com](https://export.highcharts.com) you should read our [Terms of use and Fair Usage Policy](https://www.highcharts.com/docs/export-module/privacy-disclaimer-export). Note that a

"use strict";require("colors");var e=require("fs"),t=require("path"),r=require("https-proxy-agent"),o=require("prompts"),i=require("dotenv"),s=require("zod"),n=require("module"),a=require("url"),l=require("http"),c=require("https"),p=require("tarn"),h=require("uuid"),u=require("puppeteer"),d=require("jsdom"),g=require("dompurify"),m=require("cors"),f=require("express"),v=require("multer"),y=require("express-rate-limit"),b="undefined"!=typeof document?document.currentScript:null;const w={core:["highcharts","highcharts-more","highcharts-3d"],modules:["stock","map","gantt","exporting","parallel-coordinates","accessibility","boost-canvas","boost","data","data-tools","draggable-points","static-scale","broken-axis","heatmap","tilemap","tiledwebmap","timeline","treemap","treegraph","item-series","drilldown","histogram-bellcurve","bullet","funnel","funnel3d","geoheatmap","pyramid3d","networkgraph","pareto","pattern-fill","pictorial","price-indicator","sankey","arc-diagram","dependency-wheel","series-label","series-on-point","solid-gauge","sonification","streamgraph","sunburst","variable-pie","variwide","vector","venn","windbarb","wordcloud","xrange","no-data-to-display","drag-panes","debugger","dumbbell","lollipop","cylinder","organization","dotplot","marker-clusters","hollowcandlestick","heikinashi","flowmap","export-data","navigator","textpath"],indicators:["indicators-all"],custom:["https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.30.1/moment.min.js","https://cdnjs.cloudflare.com/ajax/libs/moment-timezone/0.5.45/moment-timezone-with-data.min.js"]},E={puppeteer:{args:{value:["--allow-running-insecure-content","--ash-no-nudges","--autoplay-policy=user-gesture-required","--block-new-web-contents","--disable-accelerated-2d-canvas","--disable-background-networking","--disable-background-timer-throttling","--disable-backgrounding-occluded-windows","--disable-breakpad","--disable-checker-imaging","--disable-client-side-phishing-detection","--disable-component-extensions-with-background-pages","--disable-component-update","--disable-default-apps","--disable-dev-shm-usage","--disable-domain-reliability","--disable-extensions","--disable-features=CalculateNativeWinOcclusion,InterestFeedContentSuggestions,WebOTP","--disable-hang-monitor","--disable-ipc-flooding-protection","--disable-logging","--disable-notifications","--disable-offer-store-unmasked-wallet-cards","--disable-popup-blocking","--disable-print-preview","--disable-prompt-on-repost","--disable-renderer-backgrounding","--disable-search-engine-choice-screen","--disable-session-crashed-bubble","--disable-setuid-sandbox","--disable-site-isolation-trials","--disable-speech-api","--disable-sync","--enable-unsafe-webgpu","--hide-crash-restore-bubble","--hide-scrollbars","--metrics-recording-only","--mute-audio","--no-default-browser-check","--no-first-run","--no-pings","--pipe","--no-startup-window","--password-store=basic","--process-per-tab","--use-mock-keychain"],type:"string[]",description:"Arguments array to send to Puppeteer."},tempDir:{value:"./tmp/",type:"string",envLink:"PUPPETEER_TEMP_DIR",description:"The directory for Puppeteer to store temporary files."}},highcharts:{version:{value:"latest",type:"string",envLink:"HIGHCHARTS_VERSION",description:"The Highcharts version to be used."},cdnURL:{value:"https://code.highcharts.com/",type:"string",envLink:"HIGHCHARTS_CDN_URL",description:"The CDN URL for Highcharts scripts to be used."},useNpm:{value:!1,type:"boolean",envLink:"HIGHCHARTS_USE_NPM",description:"Flag to use Highcharts scripts from NPM package"},coreScripts:{value:w.core,type:"string[]",envLink:"HIGHCHARTS_CORE_SCRIPTS",description:"The core Highcharts scripts to fetch."},moduleScripts:{value:w.modules,type:"string[]",envLink:"HIGHCHARTS_MODULE_SCRIPTS",description:"The modules of Highcharts to fetch."},indicatorScripts:{value:w.indicators,type:"string[]",envLink:"HIGHCHARTS_INDICATOR_SCRIPTS",description:"The indicators of Highcharts to fetch."},customScripts:{value:w.custom,type:"string[]",description:"Additional custom scripts or dependencies to fetch."},forceFetch:{value:!1,type:"boolean",envLink:"HIGHCHARTS_FORCE_FETCH",description:"The flag to determine whether to refetch all scripts after each server rerun."},cachePath:{value:".cache",type:"string",envLink:"HIGHCHARTS_CACHE_PATH",description:"The path to the cache directory. 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Can be chart, stockChart, mapChart, or ganttChart."},defaultHeight:{value:400,type:"number",envLink:"EXPORT_DEFAULT_HEIGHT",description:"the default height of the exported chart. Used when no value is set."},defaultWidth:{value:600,type:"number",envLink:"EXPORT_DEFAULT_WIDTH",description:"The default width of the exported chart. Used when no value is set."},defaultScale:{value:1,type:"number",envLink:"EXPORT_DEFAULT_SCALE",description:"The default scale of the exported chart. Used when no value is set."},height:{value:!1,type:"number",description:"The height of the exported chart, overriding the option in the chart settings."},width:{value:!1,type:"number",description:"The width of the exported chart, overriding the option in the chart settings."},scale:{value:!1,type:"number",description:"The scale of the exported chart, overriding the option in the chart settings. Ranges between 0.1 and 5.0."},globalOptions:{value:!1,type:"string",description:"Either a stringified JSON or a filename containing options to be passed into the Highcharts.setOptions."},themeOptions:{value:!1,type:"string",description:"Either a stringified JSON or a filename containing theme options to be passed into the Highcharts.setOptions."},batch:{value:!1,type:"string",description:'Initiates a batch job with a string containing input/output pairs: "in=out;in=out;...".'},rasterizationTimeout:{value:1500,type:"number",envLink:"EXPORT_RASTERIZATION_TIMEOUT",description:"The duration in milliseconds to wait for rendering a webpage."}},customLogic:{allowCodeExecution:{value:!1,type:"boolean",envLink:"CUSTOM_LOGIC_ALLOW_CODE_EXECUTION",description:"Controls whether the execution of arbitrary code is allowed during the exporting process."},allowFileResources:{value:!1,type:"boolean",envLink:"CUSTOM_LOGIC_ALLOW_FILE_RESOURCES",description:"Controls the ability to inject resources from the filesystem. This setting has no effect when running as a server."},customCode:{value:!1,type:"string",description:"Custom code to execute before chart initialization. It can be a function, code wrapped within a function, or a filename with the .js extension."},callback:{value:!1,type:"string",description:"JavaScript code to run during construction. 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The `logToFile` option also needs to be set to enable file logging."},toConsole:{value:!0,type:"boolean",envLink:"LOGGING_TO_CONSOLE",cliName:"logToConsole",description:"Enables or disables showing logs in the console."},toFile:{value:!0,type:"boolean",envLink:"LOGGING_TO_FILE",cliName:"logToFile",description:"Enables or disables creation of the log directory and saving the log into a .log file."}},ui:{enable:{value:!1,type:"boolean",envLink:"UI_ENABLE",cliName:"enableUi",description:"Enables or disables the user interface (UI) for the export server."},route:{value:"/",type:"string",envLink:"UI_ROUTE",cliName:"uiRoute",description:"The endpoint route to which the user interface (UI) should be attached."}},other:{nodeEnv:{value:"production",type:"string",envLink:"OTHER_NODE_ENV",description:"The type of Node.js environment."},listenToProcessExits:{value:!0,type:"boolean",envLink:"OTHER_LISTEN_TO_PROCESS_EXITS",description:"Decides whether or not to attach process.exit handlers."},noLogo:{value:!1,type:"boolean",envLink:"OTHER_NO_LOGO",description:"Skip printing the logo on a startup. 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r.evaluate((e=>{const t=document.querySelector("#chart-container svg:first-of-type"),r=t.height.baseVal.value*e,o=t.width.baseVal.value*e;return document.body.style.zoom=e,document.body.style.margin="0px",{chartHeight:r,chartWidth:o}}),parseFloat(n.scale)):await r.evaluate((()=>{const{chartHeight:e,chartWidth:t}=window.Highcharts.charts[0];return document.body.style.zoom=1,{chartHeight:e,chartWidth:t}})),p=Math.abs(Math.ceil(c.chartHeight||n.height)),h=Math.abs(Math.ceil(c.chartWidth||n.width)),{x:u,y:d}=await(e=>e.$eval("#chart-container",(e=>{const{x:t,y:r,width:o,height:i}=e.getBoundingClientRect();return{x:t,y:r,width:o,height:Math.trunc(i>1?i:500)}})))(r);let g;if(await r.setViewport({height:p,width:h,deviceScaleFactor:l?1:parseFloat(n.scale)}),"svg"===n.type)g=await(e=>e.$eval("#container svg:first-of-type",(e=>e.outerHTML)))(r);else if(["png","jpeg"].includes(n.type))g=await((e,t,r,o,i)=>Promise.race([e.screenshot({type:t,encoding:r,clip:o,captureBeyondViewport:!0,fullPage:!1,optimizeForSpeed:!0,..."png"!==t?{quality:80}:{},omitBackground:"png"==t}),new Promise(((e,t)=>setTimeout((()=>t(new se("Rasterization timeout"))),i||1500)))]))(r,n.type,"base64",{width:h,height:p,x:u,y:d},n.rasterizationTimeout);else{if("pdf"!==n.type)throw new se(`[export] Unsupported output format ${n.type}.`);g=await(async(e,t,r,o,i)=>(await e.emulateMediaType("screen"),e.pdf({height:t+1,width:r,encoding:o,timeout:i||1500})))(r,p,h,"base64",n.rasterizationTimeout)}return await be(r,s),g}catch(e){return await be(r,s),e}};let Se=!1;const Re={performedExports:0,exportAttempts:0,exportFromSvgAttempts:0,timeSpent:0,droppedExports:0,spentAverage:0};let xe={};const _e={create:async()=>{let e=!1;const t=h.v4(),r=(new Date).getTime();try{if(e=await ye(),!e||e.isClosed())throw new se("The page is invalid or closed.");U(3,`[pool] Successfully 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Clear page status: ${t}.`)})),Se.on("destroySuccess",((e,t)=>{U(4,`[pool] Destroyed a worker with ID ${t.id}.`),t.page=null}));const e=[];for(let t=0;t<xe.minWorkers;t++)try{const t=await Se.acquire().promise;e.push(t)}catch(e){D(2,e,"[pool] Could not create an initial resource.")}e.forEach((e=>{Se.release(e)})),U(3,"[pool] The pool is ready"+(e.length?` with ${e.length} initial resources waiting.`:"."))}catch(e){throw new se("[pool] Could not create the pool of workers.").setError(e)}};async function Oe(){if(U(3,"[pool] Killing pool with all workers and closing browser."),Se){for(const e of Se.used)Se.release(e.resource);Se.destroyed||(await Se.destroy(),U(4,"[browser] Destroyed the pool of resources."))}await async function(){ve?.connected&&await ve.close(),U(4,"[browser] Closed the browser.")}()}const ke=async(e,t)=>{let r;try{if(U(4,"[pool] Work received, starting to process."),++Re.exportAttempts,xe.benchmarking&&Ce(),!Se)throw new se("Work received, but pool has not been started.");const o=Y();try{U(4,"[pool] Acquiring a worker handle."),r=await Se.acquire().promise,t.server.benchmarking&&U(5,t.payload?.requestId?`[benchmark] Request with ID ${t.payload?.requestId} -`:"[benchmark]",`Acquired a worker handle: ${o()}ms.`)}catch(e){throw new se((t.payload?.requestId?`For request with ID ${t.payload?.requestId} - `:"")+`Error encountered when acquiring an available entry: ${o()}ms.`).setError(e)}if(U(4,"[pool] Acquired a worker handle."),!r.page)throw new se("Resolved worker page is invalid: the pool setup is wonky.");let i=(new Date).getTime();U(4,`[pool] Starting work on pool entry with ID ${r.id}.`);const s=Y(),n=await Te(r.page,e,t);if(n instanceof Error)throw"Rasterization timeout"===n.message&&(r.workCount=xe.workLimit+1,r.page=null),"TimeoutError"===n.name||"Rasterization timeout"===n.message?new se("Rasterization timeout: your chart may be too complex or large, and failed to render within the allotted time.").setError(n):new se((t.payload?.requestId?`For request with ID ${t.payload?.requestId} - `:"")+`Error encountered during export: ${s()}ms.`).setError(n);t.server.benchmarking&&U(5,t.payload?.requestId?`[benchmark] Request with ID ${t.payload?.requestId} -`:"[benchmark]",`Exported a chart sucessfully: ${s()}ms.`),Se.release(r);const a=(new Date).getTime()-i;return Re.timeSpent+=a,Re.spentAverage=Re.timeSpent/++Re.performedExports,U(4,`[pool] Work completed in ${a} ms.`),{result:n,options:t}}catch(e){throw++Re.droppedExports,r&&Se.release(r),new se(`[pool] In pool.postWork: ${e.message}`).setError(e)}},Ie=()=>({min:Se.min,max:Se.max,all:Se.numFree()+Se.numUsed(),available:Se.numFree(),used:Se.numUsed(),pending:Se.numPendingAcquires()});function Ce(){const{min:e,max:t,all:r,available:o,used:i,pending:s}=Ie();U(5,`[pool] The minimum number of resources allowed by pool: ${e}.`),U(5,`[pool] The maximum number of resources allowed by pool: ${t}.`),U(5,`[pool] The number of all created resources: ${r}.`),U(5,`[pool] The number of available resources: ${o}.`),U(5,`[pool] The number of acquired resources: ${i}.`),U(5,`[pool] The number of resources waiting to be acquired: ${s}.`)}var Ne=Ie,Ae=()=>Re;let Pe=!1;const He=async(t,r)=>{U(4,"[chart] Starting the exporting process.");const o=((e,t={})=>{let r={};return e.svg?(r=B(t),r.export.type=e.type||e.export.type,r.export.scale=e.scale||e.export.scale,r.export.outfile=e.outfile||e.export.outfile,r.payload={svg:e.svg}):r=ee(t,e,S),r.export.outfile=r.export?.outfile||`chart.${r.export?.type||"png"}`,r})(t,Q()),i=o.export;if(o.payload?.svg&&""!==o.payload.svg)try{U(4,"[chart] Attempting to export from a SVG input.");const