1 files changed, 81 insertions, 0 deletions
diff --git a/packages/integrations/react/src/server-v17.ts b/packages/integrations/react/src/server-v17.ts
new file mode 100644
index 000000000..92fe21943
--- /dev/null
+++ b/packages/integrations/react/src/server-v17.ts
@@ -0,0 +1,81 @@
+import type { AstroComponentMetadata, NamedSSRLoadedRendererValue } from 'astro';
+import React from 'react';
+import ReactDOM from 'react-dom/server';
+import StaticHtml from './static-html.js';
+
+const slotName = (str: string) => str.trim().replace(/[-_]([a-z])/g, (_, w) => w.toUpperCase());
+const reactTypeof = Symbol.for('react.element');
+
+function check(Component: any, props: Record<string, any>, children: any) {
+	// Note: there are packages that do some unholy things to create "components".
+	// Checking the $$typeof property catches most of these patterns.
+	if (typeof Component === 'object') {
+		return Component['$$typeof']?.toString().slice('Symbol('.length).startsWith('react');
+	}
+	if (typeof Component !== 'function') return false;
+	if (Component.name === 'QwikComponent') return false;
+
+	if (Component.prototype != null && typeof Component.prototype.render === 'function') {
+		return React.Component.isPrototypeOf(Component) || React.PureComponent.isPrototypeOf(Component);
+	}
+
+	let isReactComponent = false;
+	function Tester(...args: Array<any>) {
+		try {
+			const vnode = Component(...args);
+			if (vnode && vnode['$$typeof'] === reactTypeof) {
+				isReactComponent = true;
+			}
+		} catch {}
+
+		return React.createElement('div');
+	}
+
+	renderToStaticMarkup(Tester, props, children, {} as any);
+
+	return isReactComponent;
+}
+
+async function renderToStaticMarkup(
+	Component: any,
+	props: Record<string, any>,
+	{ default: children, ...slotted }: Record<string, any>,
+	metadata?: AstroComponentMetadata,
+) {
+	delete props['class'];
+	const slots: Record<string, any> = {};
+	for (const [key, value] of Object.entries(slotted)) {
+		const name = slotName(key);
+		slots[name] = React.createElement(StaticHtml, { value, name });
+	}
+	// Note: create newProps to avoid mutating `props` before they are serialized
+	const newProps = {
+		...props,
+		...slots,
+	};
+	const newChildren = children ?? props.children;
+	if (newChildren != null) {
+		newProps.children = React.createElement(StaticHtml, {
+			// Adjust how this is hydrated only when the version of Astro supports `astroStaticSlot`
+			hydrate: metadata?.astroStaticSlot ? !!metadata.hydrate : true,
+			value: newChildren,
+		});
+	}
+	const vnode = React.createElement(Component, newProps);
+	let html: string;
+	if (metadata?.hydrate) {
+		html = ReactDOM.renderToString(vnode);
+	} else {
+		html = ReactDOM.renderToStaticMarkup(vnode);
+	}
+	return { html };
+}
+
+const renderer: NamedSSRLoadedRendererValue = {
+	name: '@astrojs/react',
+	check,
+	renderToStaticMarkup,
+	supportsAstroStaticSlot: true,
+};
+
+export default renderer;