40 lines
1.4 KiB
JavaScript
40 lines
1.4 KiB
JavaScript
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require('dotenv').config();
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const ALLOWED_EXT = ['jpg', 'jpeg', 'png'];
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function extFromUrl(url) {
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const m = /\.([a-z0-9]+)(\?|$)/i.exec(String(url || ''));
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return m ? m[1].toLowerCase() : null;
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}
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// Portiert aus adapters/media.lua IsAllowedExternalUrl
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function isAllowedExternalUrl(url) {
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url = String(url || '');
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if (!/^https:\/\//i.test(url)) return { ok: false, reason: 'url_must_be_https' };
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if (/^https:\/\/i\.ibb\.co\//i.test(url) || /^https:\/\/ibb\.co\//i.test(url)) return { ok: true };
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const ext = extFromUrl(url);
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if (ext && ALLOWED_EXT.includes(ext)) return { ok: true };
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return { ok: false, reason: 'unsupported_image_url' };
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}
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// Upload eines Buffers zu imgbb -> { url }
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async function uploadToImgbb(buffer, filename) {
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const key = process.env.IMGBB_KEY;
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if (!key) throw new Error('imgbb_key_missing');
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const form = new FormData();
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form.append('image', buffer.toString('base64'));
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if (filename) form.append('name', filename.replace(/\.[^.]+$/, ''));
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const resp = await fetch(`https://api.imgbb.com/1/upload?key=${encodeURIComponent(key)}`, {
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method: 'POST',
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body: form,
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});
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const data = await resp.json();
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if (!data || !data.success || !data.data || !data.data.url) {
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throw new Error('imgbb_upload_failed');
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}
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return { url: data.data.url };
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}
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module.exports = { isAllowedExternalUrl, uploadToImgbb, ALLOWED_EXT };
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