setup i18n and ported all tools to standalone pages
This commit is contained in:
abdullahalam123
286
src/js/logic/change-permissions-page.ts
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286
src/js/logic/change-permissions-page.ts
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import { showAlert } from '../ui.js';
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import { downloadFile, formatBytes, initializeQpdf, readFileAsArrayBuffer } from '../utils/helpers.js';
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import { icons, createIcons } from 'lucide';
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interface PageState {
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file: File | null;
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}
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const pageState: PageState = {
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file: null,
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};
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function resetState() {
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pageState.file = null;
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const fileDisplayArea = document.getElementById('file-display-area');
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if (fileDisplayArea) fileDisplayArea.innerHTML = '';
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const toolOptions = document.getElementById('tool-options');
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if (toolOptions) toolOptions.classList.add('hidden');
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const fileInput = document.getElementById('file-input') as HTMLInputElement;
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if (fileInput) fileInput.value = '';
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const currentPassword = document.getElementById('current-password') as HTMLInputElement;
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if (currentPassword) currentPassword.value = '';
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const newUserPassword = document.getElementById('new-user-password') as HTMLInputElement;
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if (newUserPassword) newUserPassword.value = '';
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const newOwnerPassword = document.getElementById('new-owner-password') as HTMLInputElement;
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if (newOwnerPassword) newOwnerPassword.value = '';
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}
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async function updateUI() {
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const fileDisplayArea = document.getElementById('file-display-area');
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const toolOptions = document.getElementById('tool-options');
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if (!fileDisplayArea) return;
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fileDisplayArea.innerHTML = '';
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if (pageState.file) {
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const fileDiv = document.createElement('div');
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fileDiv.className = 'flex items-center justify-between bg-gray-700 p-3 rounded-lg text-sm';
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const infoContainer = document.createElement('div');
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infoContainer.className = 'flex flex-col overflow-hidden';
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const nameSpan = document.createElement('div');
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nameSpan.className = 'truncate font-medium text-gray-200 text-sm mb-1';
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nameSpan.textContent = pageState.file.name;
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const metaSpan = document.createElement('div');
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metaSpan.className = 'text-xs text-gray-400';
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metaSpan.textContent = formatBytes(pageState.file.size);
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infoContainer.append(nameSpan, metaSpan);
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const removeBtn = document.createElement('button');
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removeBtn.className = 'ml-4 text-red-400 hover:text-red-300 flex-shrink-0';
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removeBtn.innerHTML = '<i data-lucide="trash-2" class="w-4 h-4"></i>';
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removeBtn.onclick = function () {
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resetState();
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};
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fileDiv.append(infoContainer, removeBtn);
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fileDisplayArea.appendChild(fileDiv);
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createIcons({ icons });
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if (toolOptions) toolOptions.classList.remove('hidden');
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} else {
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if (toolOptions) toolOptions.classList.add('hidden');
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}
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}
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function handleFileSelect(files: FileList | null) {
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if (files && files.length > 0) {
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const file = files[0];
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if (file.type === 'application/pdf' || file.name.toLowerCase().endsWith('.pdf')) {
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pageState.file = file;
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updateUI();
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}
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}
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}
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async function changePermissions() {
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if (!pageState.file) {
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showAlert('No File', 'Please upload a PDF file first.');
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return;
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}
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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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const inputPath = '/input.pdf';
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const outputPath = '/output.pdf';
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let qpdf: any;
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const loaderModal = document.getElementById('loader-modal');
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const loaderText = document.getElementById('loader-text');
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try {
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if (loaderModal) loaderModal.classList.remove('hidden');
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if (loaderText) loaderText.textContent = 'Initializing...';
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qpdf = await initializeQpdf();
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if (loaderText) loaderText.textContent = 'Reading PDF...';
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const fileBuffer = await readFileAsArrayBuffer(pageState.file);
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const uint8Array = new Uint8Array(fileBuffer as ArrayBuffer);
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qpdf.FS.writeFile(inputPath, uint8Array);
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if (loaderText) loaderText.textContent = 'Processing PDF permissions...';
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const args = [inputPath];
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if (currentPassword) {
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args.push('--password=' + currentPassword);
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}
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const shouldEncrypt = newUserPassword || newOwnerPassword;
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if (shouldEncrypt) {
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const finalUserPassword = newUserPassword;
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const finalOwnerPassword = newOwnerPassword;
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args.push('--encrypt', finalUserPassword, finalOwnerPassword, '256');
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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 allowDocumentAssembly = (document.getElementById('allow-document-assembly') as HTMLInputElement)?.checked;
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const allowPageExtraction = (document.getElementById('allow-page-extraction') as HTMLInputElement)?.checked;
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if (finalOwnerPassword) {
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if (!allowModifying) args.push('--modify=none');
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if (!allowCopying) args.push('--extract=n');
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if (!allowPrinting) args.push('--print=none');
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if (!allowAnnotating) args.push('--annotate=n');
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if (!allowDocumentAssembly) args.push('--assemble=n');
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if (!allowFillingForms) args.push('--form=n');
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if (!allowPageExtraction) args.push('--extract=n');
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if (!allowModifying) args.push('--modify-other=n');
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} else if (finalUserPassword) {
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args.push('--allow-insecure');
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}
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} else {
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args.push('--decrypt');
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}
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args.push('--', outputPath);
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try {
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qpdf.callMain(args);
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} catch (qpdfError: any) {
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console.error('qpdf execution error:', qpdfError);
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const errorMsg = qpdfError.message || '';
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if (
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errorMsg.includes('invalid password') ||
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errorMsg.includes('incorrect password') ||
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errorMsg.includes('password')
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) {
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throw new Error('INVALID_PASSWORD');
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}
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if (
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errorMsg.includes('encrypted') ||
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errorMsg.includes('password required')
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) {
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throw new Error('PASSWORD_REQUIRED');
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}
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throw new Error('Processing failed: ' + errorMsg || 'Unknown error');
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}
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if (loaderText) loaderText.textContent = 'Preparing download...';
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const outputFile = qpdf.FS.readFile(outputPath, { encoding: 'binary' });
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if (!outputFile || outputFile.length === 0) {
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throw new Error('Processing resulted in an empty file.');
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}
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const blob = new Blob([outputFile], { type: 'application/pdf' });
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downloadFile(blob, `permissions-changed-${pageState.file.name}`);
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if (loaderModal) loaderModal.classList.add('hidden');
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let successMessage = 'PDF permissions changed successfully!';
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if (!shouldEncrypt) {
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successMessage = 'PDF decrypted successfully! All encryption and restrictions removed.';
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}
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showAlert('Success', successMessage, 'success', () => { resetState(); });
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} catch (error: any) {
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console.error('Error during PDF permission change:', error);
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if (loaderModal) loaderModal.classList.add('hidden');
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if (error.message === 'INVALID_PASSWORD') {
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showAlert(
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'Incorrect Password',
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'The current password you entered is incorrect. Please try again.'
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);
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} else if (error.message === 'PASSWORD_REQUIRED') {
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showAlert(
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'Password Required',
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'This PDF is password-protected. Please enter the current password to proceed.'
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);
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} else {
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showAlert(
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'Processing Failed',
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`An error occurred: ${error.message || 'The PDF might be corrupted or password protected.'}`
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);
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}
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} finally {
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try {
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if (qpdf?.FS) {
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try {
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qpdf.FS.unlink(inputPath);
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} catch (e) { }
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try {
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qpdf.FS.unlink(outputPath);
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} catch (e) { }
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}
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} catch (cleanupError) {
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console.warn('Failed to cleanup WASM FS:', cleanupError);
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}
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}
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}
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document.addEventListener('DOMContentLoaded', function () {
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const fileInput = document.getElementById('file-input') as HTMLInputElement;
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const dropZone = document.getElementById('drop-zone');
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const processBtn = document.getElementById('process-btn');
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const backBtn = document.getElementById('back-to-tools');
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if (backBtn) {
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backBtn.addEventListener('click', function () {
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window.location.href = import.meta.env.BASE_URL;
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});
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}
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if (fileInput && dropZone) {
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fileInput.addEventListener('change', function (e) {
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handleFileSelect((e.target as HTMLInputElement).files);
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});
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dropZone.addEventListener('dragover', function (e) {
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e.preventDefault();
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dropZone.classList.add('bg-gray-700');
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});
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dropZone.addEventListener('dragleave', function (e) {
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e.preventDefault();
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dropZone.classList.remove('bg-gray-700');
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});
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dropZone.addEventListener('drop', function (e) {
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e.preventDefault();
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dropZone.classList.remove('bg-gray-700');
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const files = e.dataTransfer?.files;
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if (files && files.length > 0) {
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const pdfFiles = Array.from(files).filter(function (f) {
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return f.type === 'application/pdf' || f.name.toLowerCase().endsWith('.pdf');
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});
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if (pdfFiles.length > 0) {
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const dataTransfer = new DataTransfer();
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dataTransfer.items.add(pdfFiles[0]);
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handleFileSelect(dataTransfer.files);
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}
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}
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});
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fileInput.addEventListener('click', function () {
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fileInput.value = '';
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});
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}
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if (processBtn) {
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processBtn.addEventListener('click', changePermissions);
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}
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});
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