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reconvert all emojis to webp

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Kibi Kelburton
2026-05-14 00:34:22 +02:00
parent ebd2a1b385
commit 7ecb70062d
5 changed files with 325 additions and 12 deletions
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49
src/emoji_upload_handler.mjs
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@@ -4,6 +4,16 @@ import lib from "./inc/lib.mjs";
import cfg from "./inc/config.mjs";
import { parseMultipart, collectBody } from "./inc/multipart.mjs";
import path from "path";
import { fileURLToPath } from "url";
import { execFile as _execFile } from "child_process";
import { promisify } from "util";
const execFile = promisify(_execFile);
// Custom IM policy that raises list-length from 128 → 65536 to handle large animated GIFs.
const __dirname = path.dirname(fileURLToPath(import.meta.url));
const MAGICK_POLICY_PATH = path.resolve(__dirname, '../config/magick-policy');
const magickEnv = { ...process.env, MAGICK_CONFIGURE_PATH: MAGICK_POLICY_PATH };
const sendJson = (res, data, code = 200) => {
res.writeHead(code, { 'Content-Type': 'application/json' });
@@ -70,20 +80,37 @@ export const handleEmojiUpload = async (req, res) => {
const file = parts.file;
if (file && file.data && file.data.length > 0) {
const randSuffix = Math.random().toString(36).substring(7);
const extMatch = file.filename.match(/\.([a-z0-9]+)$/i);
const ext = extMatch ? extMatch[1].toLowerCase() : 'png';
const filename = `${name}_${Math.random().toString(36).substring(7)}.${ext}`;
const originalExt = extMatch ? extMatch[1].toLowerCase() : 'png';
const webpFilename = `${name}_${randSuffix}.webp`;
const webpPath = path.join(cfg.paths.emojis, webpFilename);
if (originalExt === 'webp') {
// Already WebP — write directly
console.error(`[BOOT] [EMOJI HANDLER] Writing WebP directly to: ${webpPath} (Size: ${file.data.length})`);
await fs.writeFile(webpPath, file.data);
} else {
// Write original to a temp file, then convert to WebP via magick
const tmpFilename = `${name}_${randSuffix}_tmp.${originalExt}`;
const tmpPath = path.join(cfg.paths.emojis, tmpFilename);
console.error(`[BOOT] [EMOJI HANDLER] Writing temp file: ${tmpPath} (Size: ${file.data.length})`);
await fs.writeFile(tmpPath, file.data);
try {
// -coalesce handles animated GIFs; quality 80 = lossy WebP (good visual quality, ~50-70% smaller than GIF)
await execFile('magick', [tmpPath, '-coalesce', '-quality', '80', webpPath], { env: magickEnv });
console.error(`[BOOT] [EMOJI HANDLER] Converted to WebP: ${webpPath}`);
} finally {
await fs.unlink(tmpPath).catch(() => {});
}
}
// Emojis go to public/s/emojis
const filePath = path.join(cfg.paths.emojis, filename);
console.error(`[BOOT] [EMOJI HANDLER] Writing file to: ${filePath} (Size: ${file.data.length})`);
await fs.writeFile(filePath, file.data);
// Verify write
const exists = (await fs.stat(filePath)).size > 0;
if (!exists) throw new Error("File write verification failed");
url = `/s/emojis/${filename}`;
const stat = await fs.stat(webpPath);
if (!stat || stat.size === 0) throw new Error("File write/conversion verification failed");
url = `/s/emojis/${webpFilename}`;
}
if (!url) {