feat: separate AGPL libraries and add dynamic WASM loading
- Add WASM settings page for configuring external AGPL modules - Implement dynamic loading for PyMuPDF, Ghostscript, and CoherentPDF - Add Cloudflare Worker proxy for serving WASM files with CORS - Update all affected tool pages to check WASM availability - Add showWasmRequiredDialog for missing module configuration Documentation: - Update README, licensing.html, and docs to clarify AGPL components are not bundled and must be configured separately - Add WASM-PROXY.md deployment guide with recommended source URLs - Rename "CPDF" to "CoherentPDF" for consistency
This commit is contained in:
alam00000
@@ -1,228 +1,270 @@
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import { showLoader, hideLoader, showAlert } from '../ui.js';
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import {
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downloadFile,
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readFileAsArrayBuffer,
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formatBytes,
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getPDFDocument,
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downloadFile,
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readFileAsArrayBuffer,
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formatBytes,
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getPDFDocument,
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} from '../utils/helpers.js';
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import { state } from '../state.js';
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import { createIcons, icons } from 'lucide';
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import { convertFileToPdfA, type PdfALevel } from '../utils/ghostscript-loader';
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import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
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import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
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document.addEventListener('DOMContentLoaded', () => {
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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 fileDisplayArea = document.getElementById('file-display-area');
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const optionsContainer = document.getElementById('options-container');
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const fileControls = document.getElementById('file-controls');
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const addMoreBtn = document.getElementById('add-more-btn');
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const clearFilesBtn = document.getElementById('clear-files-btn');
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const backBtn = document.getElementById('back-to-tools');
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const pdfaLevelSelect = document.getElementById('pdfa-level') as HTMLSelectElement;
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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 fileDisplayArea = document.getElementById('file-display-area');
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const optionsContainer = document.getElementById('options-container');
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const fileControls = document.getElementById('file-controls');
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const addMoreBtn = document.getElementById('add-more-btn');
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const clearFilesBtn = document.getElementById('clear-files-btn');
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const backBtn = document.getElementById('back-to-tools');
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const pdfaLevelSelect = document.getElementById(
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'pdfa-level'
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) as HTMLSelectElement;
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if (backBtn) {
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backBtn.addEventListener('click', () => {
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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 (backBtn) {
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backBtn.addEventListener('click', () => {
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window.location.href = import.meta.env.BASE_URL;
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});
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}
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const updateUI = async () => {
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if (!fileDisplayArea || !optionsContainer || !processBtn || !fileControls) return;
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const updateUI = async () => {
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if (!fileDisplayArea || !optionsContainer || !processBtn || !fileControls)
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return;
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if (state.files.length > 0) {
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fileDisplayArea.innerHTML = '';
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if (state.files.length > 0) {
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fileDisplayArea.innerHTML = '';
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for (let index = 0; index < state.files.length; index++) {
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const file = state.files[index];
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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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for (let index = 0; index < state.files.length; index++) {
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const file = state.files[index];
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const fileDiv = document.createElement('div');
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fileDiv.className =
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'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 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 = file.name;
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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 = 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 = `${formatBytes(file.size)} • Loading pages...`;
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const metaSpan = document.createElement('div');
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metaSpan.className = 'text-xs text-gray-400';
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metaSpan.textContent = `${formatBytes(file.size)} • Loading pages...`;
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infoContainer.append(nameSpan, metaSpan);
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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 = () => {
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state.files = state.files.filter((_, i) => i !== index);
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updateUI();
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};
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const removeBtn = document.createElement('button');
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removeBtn.className =
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'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 = () => {
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state.files = state.files.filter((_, i) => i !== index);
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updateUI();
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};
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fileDiv.append(infoContainer, removeBtn);
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fileDisplayArea.appendChild(fileDiv);
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try {
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const arrayBuffer = await readFileAsArrayBuffer(file);
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const pdfDoc = await getPDFDocument({ data: arrayBuffer }).promise;
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metaSpan.textContent = `${formatBytes(file.size)} • ${pdfDoc.numPages} pages`;
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} catch (error) {
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console.error('Error loading PDF:', error);
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metaSpan.textContent = `${formatBytes(file.size)} • Could not load page count`;
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}
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}
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createIcons({ icons });
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fileControls.classList.remove('hidden');
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optionsContainer.classList.remove('hidden');
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(processBtn as HTMLButtonElement).disabled = false;
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} else {
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fileDisplayArea.innerHTML = '';
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fileControls.classList.add('hidden');
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optionsContainer.classList.add('hidden');
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(processBtn as HTMLButtonElement).disabled = true;
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}
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};
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const resetState = () => {
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state.files = [];
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state.pdfDoc = null;
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if (pdfaLevelSelect) pdfaLevelSelect.value = 'PDF/A-2b';
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updateUI();
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};
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const convertToPdfA = async () => {
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const level = pdfaLevelSelect.value as PdfALevel;
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fileDiv.append(infoContainer, removeBtn);
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fileDisplayArea.appendChild(fileDiv);
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try {
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if (state.files.length === 0) {
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showAlert('No Files', 'Please select at least one PDF file.');
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hideLoader();
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return;
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}
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const arrayBuffer = await readFileAsArrayBuffer(file);
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const pdfDoc = await getPDFDocument({ data: arrayBuffer }).promise;
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metaSpan.textContent = `${formatBytes(file.size)} • ${pdfDoc.numPages} pages`;
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} catch (error) {
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console.error('Error loading PDF:', error);
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metaSpan.textContent = `${formatBytes(file.size)} • Could not load page count`;
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}
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}
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if (state.files.length === 1) {
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const originalFile = state.files[0];
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createIcons({ icons });
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fileControls.classList.remove('hidden');
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optionsContainer.classList.remove('hidden');
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(processBtn as HTMLButtonElement).disabled = false;
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} else {
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fileDisplayArea.innerHTML = '';
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fileControls.classList.add('hidden');
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optionsContainer.classList.add('hidden');
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(processBtn as HTMLButtonElement).disabled = true;
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}
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};
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showLoader('Initializing Ghostscript...');
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const resetState = () => {
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state.files = [];
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state.pdfDoc = null;
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const convertedBlob = await convertFileToPdfA(
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originalFile,
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level,
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(msg) => showLoader(msg)
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);
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if (pdfaLevelSelect) pdfaLevelSelect.value = 'PDF/A-2b';
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const fileName = originalFile.name.replace(/\.pdf$/i, '') + '_pdfa.pdf';
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updateUI();
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};
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downloadFile(convertedBlob, fileName);
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const convertToPdfA = async () => {
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const level = pdfaLevelSelect.value as PdfALevel;
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hideLoader();
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try {
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if (state.files.length === 0) {
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showAlert('No Files', 'Please select at least one PDF file.');
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hideLoader();
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return;
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}
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showAlert(
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'Conversion Complete',
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`Successfully converted ${originalFile.name} to ${level}.`,
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'success',
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() => resetState()
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);
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} else {
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showLoader('Converting multiple PDFs to PDF/A...');
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const JSZip = (await import('jszip')).default;
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const zip = new JSZip();
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if (state.files.length === 1) {
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const originalFile = state.files[0];
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const preFlattenCheckbox = document.getElementById(
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'pre-flatten'
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) as HTMLInputElement;
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const shouldPreFlatten = preFlattenCheckbox?.checked || false;
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for (let i = 0; i < state.files.length; i++) {
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const file = state.files[i];
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showLoader(`Converting ${i + 1}/${state.files.length}: ${file.name}...`);
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let fileToConvert = originalFile;
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const convertedBlob = await convertFileToPdfA(
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file,
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level,
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(msg) => showLoader(msg)
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);
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const baseName = file.name.replace(/\.pdf$/i, '');
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const blobBuffer = await convertedBlob.arrayBuffer();
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zip.file(`${baseName}_pdfa.pdf`, blobBuffer);
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}
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const zipBlob = await zip.generateAsync({ type: 'blob' });
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downloadFile(zipBlob, 'pdfa-converted.zip');
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hideLoader();
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showAlert(
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'Conversion Complete',
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`Successfully converted ${state.files.length} PDF(s) to ${level}.`,
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'success',
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() => resetState()
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);
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}
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} catch (e: any) {
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// Pre-flatten using PyMuPDF rasterization if checkbox is checked
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if (shouldPreFlatten) {
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if (!isPyMuPDFAvailable()) {
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showWasmRequiredDialog('pymupdf');
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hideLoader();
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showAlert(
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'Error',
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`An error occurred during conversion. Error: ${e.message}`
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);
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}
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};
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return;
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}
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const handleFileSelect = (files: FileList | null) => {
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if (files && files.length > 0) {
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state.files = [...state.files, ...Array.from(files)];
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updateUI();
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}
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};
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showLoader('Pre-flattening PDF...');
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const pymupdf = await loadPyMuPDF();
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if (fileInput && dropZone) {
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fileInput.addEventListener('change', (e) => {
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handleFileSelect((e.target as HTMLInputElement).files);
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});
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dropZone.addEventListener('dragover', (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', (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', (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(f => f.type === 'application/pdf' || f.name.toLowerCase().endsWith('.pdf'));
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if (pdfFiles.length > 0) {
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const dataTransfer = new DataTransfer();
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pdfFiles.forEach(f => dataTransfer.items.add(f));
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handleFileSelect(dataTransfer.files);
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}
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// Rasterize PDF to images and back to PDF (300 DPI for quality)
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const flattenedBlob = await (pymupdf as any).rasterizePdf(
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originalFile,
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{
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dpi: 300,
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format: 'png',
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}
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});
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);
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// Clear value on click to allow re-selecting the same file
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fileInput.addEventListener('click', () => {
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fileInput.value = '';
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});
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}
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fileToConvert = new File([flattenedBlob], originalFile.name, {
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type: 'application/pdf',
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});
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}
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if (addMoreBtn) {
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addMoreBtn.addEventListener('click', () => {
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fileInput.click();
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});
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}
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showLoader('Initializing Ghostscript...');
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if (clearFilesBtn) {
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clearFilesBtn.addEventListener('click', () => {
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resetState();
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});
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}
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const convertedBlob = await convertFileToPdfA(
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fileToConvert,
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level,
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(msg) => showLoader(msg)
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);
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if (processBtn) {
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processBtn.addEventListener('click', convertToPdfA);
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const fileName = originalFile.name.replace(/\.pdf$/i, '') + '_pdfa.pdf';
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downloadFile(convertedBlob, fileName);
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hideLoader();
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showAlert(
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'Conversion Complete',
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`Successfully converted ${originalFile.name} to ${level}.`,
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'success',
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() => resetState()
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);
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} else {
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showLoader('Converting multiple PDFs to PDF/A...');
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const JSZip = (await import('jszip')).default;
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const zip = new JSZip();
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for (let i = 0; i < state.files.length; i++) {
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const file = state.files[i];
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showLoader(
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`Converting ${i + 1}/${state.files.length}: ${file.name}...`
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);
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const convertedBlob = await convertFileToPdfA(file, level, (msg) =>
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showLoader(msg)
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);
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const baseName = file.name.replace(/\.pdf$/i, '');
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const blobBuffer = await convertedBlob.arrayBuffer();
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zip.file(`${baseName}_pdfa.pdf`, blobBuffer);
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}
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const zipBlob = await zip.generateAsync({ type: 'blob' });
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downloadFile(zipBlob, 'pdfa-converted.zip');
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hideLoader();
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showAlert(
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'Conversion Complete',
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`Successfully converted ${state.files.length} PDF(s) to ${level}.`,
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'success',
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() => resetState()
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);
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}
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} catch (e: any) {
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hideLoader();
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showAlert(
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'Error',
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`An error occurred during conversion. Error: ${e.message}`
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);
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}
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};
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const handleFileSelect = (files: FileList | null) => {
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if (files && files.length > 0) {
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state.files = [...state.files, ...Array.from(files)];
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updateUI();
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}
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};
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if (fileInput && dropZone) {
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fileInput.addEventListener('change', (e) => {
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handleFileSelect((e.target as HTMLInputElement).files);
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});
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dropZone.addEventListener('dragover', (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', (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', (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(
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(f) =>
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f.type === 'application/pdf' ||
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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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pdfFiles.forEach((f) => dataTransfer.items.add(f));
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handleFileSelect(dataTransfer.files);
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}
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}
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});
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// Clear value on click to allow re-selecting the same file
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fileInput.addEventListener('click', () => {
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fileInput.value = '';
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});
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}
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if (addMoreBtn) {
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addMoreBtn.addEventListener('click', () => {
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fileInput.click();
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});
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}
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if (clearFilesBtn) {
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clearFilesBtn.addEventListener('click', () => {
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resetState();
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});
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}
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if (processBtn) {
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processBtn.addEventListener('click', convertToPdfA);
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}
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});
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Block a user