8c693b582d
* fix: prevent media upload OOM on Workers via client thumbnails + server safety net Large image uploads (5MB+) crash Cloudflare Workers (128MB limit) because generatePlaceholder() decodes entire images to raw RGBA pixels. A 4000x3000 JPEG becomes ~48MB RGBA, exceeding the isolate memory budget. Two-layer fix: - Client-side: browser generates a 64px canvas thumbnail for oversized images and sends it alongside the upload. Server generates blurhash from the thumbnail (~16KB RGBA) instead of decoding the full image. - Server-side: reads dimensions from image headers via image-size and skips placeholder generation when estimated decoded size exceeds 32MB. This covers API/CLI uploads that don't provide thumbnails. * chore: add changeset for media upload OOM fix * fix: clamp upload thumbnail to 64x64 box for extreme aspect ratios Naive sizing (thumbW=64, thumbH=(h/w)*64) could produce an enormous canvas for very tall or very wide images — e.g. a 100x840000 image would allocate a 64x537600 canvas client-side, reintroducing the memory blowup this feature exists to prevent. Extract computeThumbnailSize() that fits the image within a 64x64 box by scaling against max(width, height), wrap canvas allocation and drawImage in try/catch with a no-thumbnail fallback, and add unit tests covering extreme aspect ratios. --------- Co-authored-by: Matt Kane <mkane@cloudflare.com>
emdash
The core EmDash CMS package - an Astro-native, agent-portable reimplementation of WordPress.
Installation
npm install emdash
Features
- Content Management - Collections, fields, Live Collections integration
- Media Library - Upload via signed URLs, S3-compatible storage
- Full-Text Search - FTS5 with Porter stemming, per-collection config
- Navigation Menus - Hierarchical menus with URL resolution
- Taxonomies - Categories, tags, custom taxonomies
- Widget Areas - Content, menu, and component widgets
- Sections - Reusable content blocks
- Plugin System - Hooks, storage, settings, admin pages
- WordPress Import - WXR, REST API, WordPress.com
Quick Start
// astro.config.mjs
import { defineConfig } from "astro/config";
import emdash, { local } from "emdash/astro";
import { sqlite } from "emdash/db";
export default defineConfig({
integrations: [
emdash({
database: sqlite({ url: "file:./data.db" }),
storage: local({
directory: "./uploads",
baseUrl: "/_emdash/api/media/file",
}),
}),
],
});
// src/live.config.ts
import { defineLiveCollection } from "astro:content";
import { emdashLoader } from "emdash/runtime";
export const collections = {
_emdash: defineLiveCollection({ loader: emdashLoader() }),
};
API
import {
getEmDashCollection,
getEmDashEntry,
getSiteSettings,
getMenu,
getTaxonomyTerms,
getWidgetArea,
search,
} from "emdash";
// Content
const { entries } = await getEmDashCollection("posts");
const { entry } = await getEmDashEntry("posts", "hello-world");
// Site settings
const settings = await getSiteSettings();
// Navigation
const menu = await getMenu("primary");
// Taxonomies
const categories = await getTaxonomyTerms("categories");
// Widgets
const sidebar = await getWidgetArea("sidebar");
// Search
const results = await search("hello world", { collections: ["posts"] });
Documentation
See the documentation site for guides, API reference, and plugin development.