Initial commit

src/index.ts

@@ -0,0 +1,106 @@
+export interface Env {}
+export interface ExecutionContext {}
+
+function getMimeType(filename: string): string {
+	const ext = filename.split('.').pop()?.toLowerCase();
+	switch (ext) {
+		case 'html': return 'text/html';
+		case 'css': return 'text/css';
+		case 'js': return 'application/javascript';
+		case 'json': return 'application/json';
+		case 'png': return 'image/png';
+		case 'jpg':
+		case 'jpeg': return 'image/jpeg';
+		case 'gif': return 'image/gif';
+		case 'svg': return 'image/svg+xml';
+		case 'ico': return 'image/x-icon';
+		case 'txt': return 'text/plain';
+		case 'xml': return 'application/xml';
+		case 'pdf': return 'application/pdf';
+		case 'woff': return 'font/woff';
+		case 'woff2': return 'font/woff2';
+		case 'ttf': return 'font/ttf';
+		case 'otf': return 'font/otf';
+		case 'eot': return 'application/vnd.ms-fontobject';
+		case 'md': return 'text/markdown';
+		default: return 'application/octet-stream';
+	}
+}
+
+export default {
+	async fetch(request: Request, env: Env, ctx: ExecutionContext): Promise<Response> {
+		const url = new URL(request.url);
+		const userAgent = request.headers.get('User-Agent') || '';
+
+		// 1. Check if request is coming from git
+		if (userAgent.toLowerCase().includes('git')) {
+			const redirectUrl = new URL(url.toString());
+			redirectUrl.hostname = 'chookspace.com';
+			return Response.redirect(redirectUrl.toString(), 302);
+		}
+
+		// Parse path: /(user)/(repo)/(file...)
+		// Remove leading slash
+		const path = url.pathname.slice(1);
+		const parts = path.split('/');
+
+		// Need at least user and repo
+        // Otherwise, redirect to profile
+		if (parts.length < 2) {
+			const redirectUrl = new URL(url.toString());
+			redirectUrl.hostname = 'chookspace.com';
+			return Response.redirect(redirectUrl.toString(), 302);
+		}
+
+		const user = parts[0];
+		const repo = parts[1];
+		let filePath = parts.slice(2).join('/');
+
+		// 2. Handle index.html default
+		if (!filePath || filePath === '') {
+			filePath = 'index.html';
+		} else if (filePath.endsWith('/')) {
+			filePath += 'index.html';
+		}
+
+		// 3. Check if file exists at raw URL
+		// URL structure: https://chookspace.com/(user)/(repo)/raw/branch/master/chookspace/(file)
+		const rawBase = `https://chookspace.com/${user}/${repo}/raw/branch/master/chookspace`;
+		const rawUrl = `${rawBase}/${filePath}`;
+
+		try {
+			// Prepare headers for the fetch request
+			const fetchHeaders = new Headers(request.headers);
+			fetchHeaders.set('User-Agent', 'Chsp-Worker-Proxy/1.0');
+
+			const rawResponse = await fetch(rawUrl, {
+				method: request.method,
+				headers: fetchHeaders,
+				redirect: 'follow'
+			});
+
+			// 4. If success (2xx), proxy it
+			if (rawResponse.ok) {
+				const mimeType = getMimeType(filePath);
+				
+				// Create new headers to override Content-Type
+				const newHeaders = new Headers(rawResponse.headers);
+				newHeaders.set('Content-Type', mimeType);
+
+				return new Response(rawResponse.body, {
+					status: rawResponse.status,
+					statusText: rawResponse.statusText,
+					headers: newHeaders
+				});
+			}
+		} catch (e) {
+			// Fetch failed (network error etc), proceed to fallback
+			console.error('Fetch error:', e);
+		}
+
+		// 5. If not found or error, redirect to chookspace site
+		const redirectUrl = new URL(url.toString());
+		redirectUrl.hostname = 'chookspace.com';
+		return Response.redirect(redirectUrl.toString(), 302);
+	},
+};