import puppeteer from "../../puppeteer.app.mjs";
import constants from "../../common/constants.mjs";
import fs from "fs";
export default {
key: "puppeteer-get-pdf",
name: "Get PDF",
description: "Generate a PDF of a page using Puppeteer. [See the documentation](https://pptr.dev/api/puppeteer.page.pdf)",
version: "1.0.1",
type: "action",
props: {
puppeteer,
url: {
type: "string",
label: "URL",
description: "The URL of the page to scrape.",
},
downloadPath: {
type: "string",
label: "Download Path",
description: "Download the PDF to the `/tmp` directory with the specified filename",
optional: true,
},
displayHeaderFooter: {
type: "boolean",
label: "Display Header Footer",
description: "Whether to show the header and footer.",
optional: true,
default: false,
},
footerTemplate: {
type: "string",
label: "Footer Template",
description: "HTML template for the print footer.",
optional: true,
},
format: {
type: "string",
label: "Format",
description: "The paper format of the PDF",
options: constants.PAPER_FORMAT,
optional: true,
},
headerTemplate: {
type: "string",
label: "Header Template",
description: "HTML template for the print header. Should be valid HTML with the following classes used to inject values into them: `date` - formatted print date, `title` - document title, `url` - document location, `pageNumber` - current page number, `totalPages` - total pages in the document.",
optional: true,
},
height: {
type: "string",
label: "Height",
description: "Sets the height of paper. You can pass in a number or a string with a unit.",
optional: true,
},
landscape: {
type: "boolean",
label: "Landscape",
description: "Whether to print in landscape orientation.",
optional: true,
default: false,
},
marginBottom: {
type: "string",
label: "Bottom Margin",
description: "Margin for the bottom of the page",
optional: true,
},
marginLeft: {
type: "string",
label: "Left Margin",
description: "Margin for the left side of the page",
optional: true,
},
marginRight: {
type: "string",
label: "Right Margin",
description: "Margin for the right side of the page",
optional: true,
},
marginTop: {
type: "string",
label: "Top Margin",
description: "Margin for the top of the page",
optional: true,
},
omitBackground: {
type: "boolean",
label: "Omit Background",
description: "Hides default white background and allows generating pdfs with transparency.",
optional: true,
default: false,
},
pageRanges: {
type: "string",
label: "Page Ranges",
description: "Paper ranges to print, e.g. 1-5, 8, 11-13.",
optional: true,
},
preferCSSPageSize: {
type: "boolean",
label: "Prefer CSS Page Size",
description: "Give any CSS @page size declared in the page priority over what is declared in the width or height or format option.",
optional: true,
default: false,
},
printBackground: {
type: "boolean",
label: "Print Background",
description: "Set to true to print background graphics.",
optional: true,
default: false,
},
scale: {
type: "string",
label: "Scale",
description: "Scales the rendering of the web page. Amount must be between 0.1 and 2.",
optional: true,
},
timeout: {
type: "integer",
label: "Timeout",
description: "Timeout in milliseconds. Pass 0 to disable timeout.",
optional: true,
default: 30000,
},
width: {
type: "string",
label: "Width",
description: "Sets the width of paper. You can pass in a number or a string with a unit.",
optional: true,
},
},
methods: {
async downloadToTMP(pdf) {
const path = this.downloadPath.includes("/tmp")
? this.downloadPath
: `/tmp/${this.downloadPath}`;
fs.writeFileSync(path, pdf);
return path;
},
},
async run({ $ }) {
const options = {
displayHeaderFooter: this.displayHeaderFooter,
footerTemplate: this.footerTemplate,
format: this.format,
headerTemplate: this.headerTemplate,
height: this.height,
landscape: this.landscape,
margin: {
bottom: this.marginBottom,
left: this.marginLeft,
right: this.marginRight,
top: this.marginTop,
},
omitBackground: this.omitBackground,
pageRanges: this.pageRanges,
preferCSSPageSize: this.preferCSSPageSize,
printBackground: this.printBackground,
scale: this.scale
? parseFloat(this.scale)
: undefined,
timeout: this.timeout,
width: this.width,
};
const browser = await this.puppeteer.launch();
const page = await browser.newPage();
await page.goto(this.url);
const pdf = await page.pdf(options);
await browser.close();
const filePath = pdf && this.downloadPath
? await this.downloadToTMP(pdf)
: undefined;
if (pdf) {
$.export("$summary", "Successfully generated PDF from page.");
}
return filePath
? {
pdf,
filePath,
}
: pdf;
},
};
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