feat:Setup Prettier for code formatting
This commit is contained in:
NanditaPatil-dotcom
@@ -1,115 +1,146 @@
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import { showLoader, hideLoader, showAlert } from '../ui.js';
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import { downloadFile, readFileAsArrayBuffer } from '../utils/helpers.js';
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import { state } from '../state.js';
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import PDFDocument from 'pdfkit/js/pdfkit.standalone';
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import blobStream from 'blob-stream';
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import * as pdfjsLib from "pdfjs-dist";
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import * as pdfjsLib from 'pdfjs-dist';
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export async function changePermissions() {
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const currentPassword = (document.getElementById('current-password') as HTMLInputElement).value;
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const newUserPassword = (document.getElementById('new-user-password') as HTMLInputElement).value;
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const newOwnerPassword = (document.getElementById('new-owner-password') as HTMLInputElement).value;
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// An owner password is required to enforce any permissions.
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if (!newOwnerPassword && (newUserPassword || document.querySelectorAll('input[type="checkbox"]:not(:checked)').length > 0)) {
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showAlert('Input Required', 'You must set a "New Owner Password" to enforce specific permissions or to set a user password.');
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return;
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}
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showLoader('Preparing to process...');
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const currentPassword = (
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document.getElementById('current-password') as HTMLInputElement
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).value;
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const newUserPassword = (
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document.getElementById('new-user-password') as HTMLInputElement
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).value;
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const newOwnerPassword = (
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document.getElementById('new-owner-password') as HTMLInputElement
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).value;
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// An owner password is required to enforce any permissions.
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if (
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!newOwnerPassword &&
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(newUserPassword ||
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document.querySelectorAll('input[type="checkbox"]:not(:checked)').length >
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0)
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) {
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showAlert(
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'Input Required',
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'You must set a "New Owner Password" to enforce specific permissions or to set a user password.'
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);
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return;
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}
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showLoader('Preparing to process...');
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try {
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const file = state.files[0];
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const pdfData = await readFileAsArrayBuffer(file);
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let pdf;
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try {
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const file = state.files[0];
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const pdfData = await readFileAsArrayBuffer(file);
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let pdf;
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try {
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pdf = await pdfjsLib.getDocument({
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data: pdfData as ArrayBuffer,
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password: currentPassword
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}).promise;
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} catch (e) {
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// This catch is specific to password errors in pdf.js
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if (e.name === 'PasswordException') {
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hideLoader();
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showAlert('Incorrect Password', 'The current password you entered is incorrect.');
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return;
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}
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throw e;
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}
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const numPages = pdf.numPages;
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const pageImages = [];
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for (let i = 1; i <= numPages; i++) {
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document.getElementById('loader-text').textContent = `Processing page ${i} of ${numPages}...`;
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const page = await pdf.getPage(i);
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const viewport = page.getViewport({ scale: 2.0 });
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const canvas = document.createElement('canvas');
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canvas.height = viewport.height;
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canvas.width = viewport.width;
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const context = canvas.getContext('2d');
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await page.render({ canvasContext: context, viewport: viewport }).promise;
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pageImages.push({
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data: canvas.toDataURL('image/jpeg', 0.8),
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width: viewport.width,
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height: viewport.height
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});
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}
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document.getElementById('loader-text').textContent = 'Applying new permissions...';
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const allowPrinting = (document.getElementById('allow-printing') as HTMLInputElement).checked;
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const allowCopying = (document.getElementById('allow-copying') as HTMLInputElement).checked;
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const allowModifying = (document.getElementById('allow-modifying') as HTMLInputElement).checked;
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const allowAnnotating = (document.getElementById('allow-annotating') as HTMLInputElement).checked;
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const allowFillingForms = (document.getElementById('allow-filling-forms') as HTMLInputElement).checked;
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const allowContentAccessibility = (document.getElementById('allow-content-accessibility') as HTMLInputElement).checked;
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const allowDocumentAssembly = (document.getElementById('allow-document-assembly') as HTMLInputElement).checked;
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const doc = new PDFDocument({
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size: [pageImages[0].width, pageImages[0].height],
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pdfVersion: '1.7ext3', // Uses 256-bit AES encryption
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// Apply the new, separate user and owner passwords
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userPassword: newUserPassword,
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ownerPassword: newOwnerPassword,
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// Apply all seven permissions from the checkboxes
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permissions: {
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printing: allowPrinting ? 'highResolution' : false,
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modifying: allowModifying,
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copying: allowCopying,
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annotating: allowAnnotating,
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fillingForms: allowFillingForms,
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contentAccessibility: allowContentAccessibility,
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documentAssembly: allowDocumentAssembly
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}
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});
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const stream = doc.pipe(blobStream());
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for (let i = 0; i < pageImages.length; i++) {
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if (i > 0) doc.addPage({ size: [pageImages[i].width, pageImages[i].height] });
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doc.image(pageImages[i].data, 0, 0, {
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width: pageImages[i].width,
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height: pageImages[i].height
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});
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}
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doc.end();
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stream.on('finish', function () {
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const blob = stream.toBlob('application/pdf');
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downloadFile(blob, `permissions-changed-${file.name}`);
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hideLoader();
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showAlert('Success', 'Permissions changed successfully!');
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});
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pdf = await pdfjsLib.getDocument({
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data: pdfData as ArrayBuffer,
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password: currentPassword,
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}).promise;
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} catch (e) {
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console.error(e);
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// This catch is specific to password errors in pdf.js
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if (e.name === 'PasswordException') {
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hideLoader();
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showAlert('Error', `An unexpected error occurred: ${e.message}`);
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showAlert(
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'Incorrect Password',
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'The current password you entered is incorrect.'
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);
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return;
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}
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throw e;
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}
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}
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const numPages = pdf.numPages;
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const pageImages = [];
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for (let i = 1; i <= numPages; i++) {
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document.getElementById('loader-text').textContent =
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`Processing page ${i} of ${numPages}...`;
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const page = await pdf.getPage(i);
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const viewport = page.getViewport({ scale: 2.0 });
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const canvas = document.createElement('canvas');
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canvas.height = viewport.height;
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canvas.width = viewport.width;
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const context = canvas.getContext('2d');
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await page.render({ canvasContext: context, viewport: viewport }).promise;
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pageImages.push({
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data: canvas.toDataURL('image/jpeg', 0.8),
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width: viewport.width,
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height: viewport.height,
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});
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}
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document.getElementById('loader-text').textContent =
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'Applying new permissions...';
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const allowPrinting = (
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document.getElementById('allow-printing') as HTMLInputElement
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).checked;
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const allowCopying = (
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document.getElementById('allow-copying') as HTMLInputElement
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).checked;
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const allowModifying = (
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document.getElementById('allow-modifying') as HTMLInputElement
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).checked;
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const allowAnnotating = (
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document.getElementById('allow-annotating') as HTMLInputElement
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).checked;
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const allowFillingForms = (
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document.getElementById('allow-filling-forms') as HTMLInputElement
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).checked;
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const allowContentAccessibility = (
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document.getElementById('allow-content-accessibility') as HTMLInputElement
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).checked;
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const allowDocumentAssembly = (
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document.getElementById('allow-document-assembly') as HTMLInputElement
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).checked;
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const doc = new PDFDocument({
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size: [pageImages[0].width, pageImages[0].height],
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pdfVersion: '1.7ext3', // Uses 256-bit AES encryption
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// Apply the new, separate user and owner passwords
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userPassword: newUserPassword,
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ownerPassword: newOwnerPassword,
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// Apply all seven permissions from the checkboxes
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permissions: {
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printing: allowPrinting ? 'highResolution' : false,
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modifying: allowModifying,
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copying: allowCopying,
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annotating: allowAnnotating,
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fillingForms: allowFillingForms,
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contentAccessibility: allowContentAccessibility,
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documentAssembly: allowDocumentAssembly,
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},
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});
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const stream = doc.pipe(blobStream());
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for (let i = 0; i < pageImages.length; i++) {
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if (i > 0)
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doc.addPage({ size: [pageImages[i].width, pageImages[i].height] });
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doc.image(pageImages[i].data, 0, 0, {
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width: pageImages[i].width,
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height: pageImages[i].height,
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});
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}
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doc.end();
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stream.on('finish', function () {
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const blob = stream.toBlob('application/pdf');
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downloadFile(blob, `permissions-changed-${file.name}`);
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hideLoader();
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showAlert('Success', 'Permissions changed successfully!');
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});
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} catch (e) {
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console.error(e);
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hideLoader();
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showAlert('Error', `An unexpected error occurred: ${e.message}`);
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}
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}
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