Initial commit

routes/api/containers/[id]/files/download/+server.ts

@@ -0,0 +1,98 @@
+import { getContainerArchive, statContainerPath } from '$lib/server/docker';
+import { authorize } from '$lib/server/authorize';
+import type { RequestHandler } from './$types';
+
+export const GET: RequestHandler = async ({ params, url, cookies }) => {
+	const auth = await authorize(cookies);
+
+	const path = url.searchParams.get('path');
+	const envId = url.searchParams.get('env');
+	const envIdNum = envId ? parseInt(envId) : undefined;
+
+	// Permission check with environment context
+	if (auth.authEnabled && !await auth.can('containers', 'view', envIdNum)) {
+		return new Response(JSON.stringify({ error: 'Permission denied' }), {
+			status: 403,
+			headers: { 'Content-Type': 'application/json' }
+		});
+	}
+
+	if (!path) {
+		return new Response(JSON.stringify({ error: 'Path is required' }), {
+			status: 400,
+			headers: { 'Content-Type': 'application/json' }
+		});
+	}
+
+	try {
+		// Get format from query parameter (defaults to tar)
+		const format = url.searchParams.get('format') || 'tar';
+
+		// Get stat info to determine filename
+		let filename: string;
+		try {
+			const stat = await statContainerPath(params.id, path, envIdNum);
+			filename = stat.name || path.split('/').pop() || 'download';
+		} catch {
+			filename = path.split('/').pop() || 'download';
+		}
+
+		// Get the archive from Docker
+		const response = await getContainerArchive(
+			params.id,
+			path,
+			envIdNum
+		);
+
+		// Prepare response based on format
+		let body: ReadableStream<Uint8Array> | Uint8Array = response.body!;
+		let contentType = 'application/x-tar';
+		let extension = '.tar';
+
+		if (format === 'tar.gz') {
+			// Compress with gzip using Bun's native implementation
+			const tarData = new Uint8Array(await response.arrayBuffer());
+			body = Bun.gzipSync(tarData);
+			contentType = 'application/gzip';
+			extension = '.tar.gz';
+		}
+
+		const headers: Record<string, string> = {
+			'Content-Type': contentType,
+			'Content-Disposition': `attachment; filename="${filename}${extension}"`
+		};
+
+		// Set content length for compressed data
+		if (body instanceof Uint8Array) {
+			headers['Content-Length'] = body.length.toString();
+		} else {
+			// Pass through content length for streaming tar
+			const contentLength = response.headers.get('Content-Length');
+			if (contentLength) {
+				headers['Content-Length'] = contentLength;
+			}
+		}
+
+		return new Response(body, { headers });
+	} catch (error: any) {
+		console.error('Error downloading container file:', error);
+
+		if (error.message?.includes('No such file or directory')) {
+			return new Response(JSON.stringify({ error: 'File not found' }), {
+				status: 404,
+				headers: { 'Content-Type': 'application/json' }
+			});
+		}
+		if (error.message?.includes('Permission denied')) {
+			return new Response(JSON.stringify({ error: 'Permission denied to access this path' }), {
+				status: 403,
+				headers: { 'Content-Type': 'application/json' }
+			});
+		}
+
+		return new Response(JSON.stringify({ error: 'Failed to download file' }), {
+			status: 500,
+			headers: { 'Content-Type': 'application/json' }
+		});
+	}
+};