80 lines
2.7 KiB
JavaScript
80 lines
2.7 KiB
JavaScript
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// BetterCurseForge — Preload Script
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// ==================================
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// Injected into every BrowserWindow's preload phase.
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// Chain-loads the original CurseForge preload, then injects the renderer runtime.
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// Since contextIsolation is false, we have direct access to the renderer's JS context.
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const { ipcRenderer } = require('electron');
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const path = require('path');
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const fs = require('fs');
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// ── Find and load original preload ────────────────────────────
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const args = process.argv;
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let originalPreloadPath = null;
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for (const arg of args) {
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if (arg.startsWith('--bcf-original-preload=')) {
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originalPreloadPath = arg.split('=')[1];
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break;
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}
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}
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if (originalPreloadPath && fs.existsSync(originalPreloadPath)) {
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try {
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require(originalPreloadPath);
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console.log('[BetterCF] Original preload loaded:', originalPreloadPath);
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} catch (err) {
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console.error('[BetterCF] Failed to load original preload:', err);
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}
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}
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// ── Inject Renderer Runtime ───────────────────────────────────
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const bcfInjected = args.some(a => a === '--bcf-injected=true');
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if (bcfInjected) {
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// Wait for DOM to be ready, then inject our renderer
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const injectRenderer = () => {
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const bcfCorePath = path.join(__dirname, 'bettercf', 'core');
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const rendererPath = path.join(bcfCorePath, 'renderer.js');
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if (!fs.existsSync(rendererPath)) {
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console.warn('[BetterCF] renderer.js not found at', rendererPath);
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return;
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}
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// Read renderer code and inject via inline script
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// CSP allows 'unsafe-inline' so this works
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const rendererCode = fs.readFileSync(rendererPath, 'utf-8');
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// Create the BetterCurseForge API on the window object
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// This needs to bridge to the main process via IPC
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const apiSetup = `
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window.__BCF_IPC__ = {
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invoke: (...args) => require('electron').ipcRenderer.invoke(...args),
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};
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window.__BCF_PRELOAD_PATH__ = ${JSON.stringify(bcfCorePath)};
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`;
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// Inject API setup immediately
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const apiScript = document.createElement('script');
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apiScript.textContent = apiSetup;
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(document.head || document.documentElement).appendChild(apiScript);
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// Inject renderer after a short delay to ensure DOM is ready
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const rendererScript = document.createElement('script');
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rendererScript.type = 'module';
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rendererScript.textContent = rendererCode;
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(document.head || document.documentElement).appendChild(rendererScript);
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console.log('[BetterCF] Renderer injected.');
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};
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if (document.readyState === 'loading') {
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document.addEventListener('DOMContentLoaded', injectRenderer);
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} else {
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injectRenderer();
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}
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}
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