118 lines
3.4 KiB
TypeScript
118 lines
3.4 KiB
TypeScript
// /api/thumbnails/[...path]/route.ts
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// This endpoint serves thumbnails from the thumbnails directory
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import { NextResponse } from 'next/server';
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import * as fs from 'fs';
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import * as path from 'path';
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// Path to thumbnails directory (should match UPLOADS_DIR/thumbnails)
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const THUMBNAILS_DIR = path.join(process.env.UPLOADS_DIR || '/uploads', 'thumbnails');
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export async function GET(
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request: Request,
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context: { params: Promise<{ path?: string[] }> }
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) {
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try {
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const params = await context.params;
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const pathSegments = params?.path || [];
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if (pathSegments.length === 0) {
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return NextResponse.json(
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{ error: 'Invalid thumbnail request' },
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{ status: 400 }
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);
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}
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// Construct the file path and validate it
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const requestedPath = path.join(THUMBNAILS_DIR, ...pathSegments);
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// Security: prevent directory traversal attacks
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if (!requestedPath.startsWith(THUMBNAILS_DIR)) {
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return NextResponse.json(
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{ error: 'Invalid request' },
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{ status: 403 }
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);
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}
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// Check if file exists
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if (!fs.existsSync(requestedPath)) {
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console.log(`[Thumbnails] File not found: ${requestedPath}`);
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return NextResponse.json(
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{ error: 'Not found' },
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{ status: 404 }
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);
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}
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// Read the file
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const fileContent = fs.readFileSync(requestedPath);
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// Determine content type based on file extension
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let contentType = 'application/octet-stream';
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if (requestedPath.endsWith('.jpg') || requestedPath.endsWith('.jpeg')) {
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contentType = 'image/jpeg';
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} else if (requestedPath.endsWith('.png')) {
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contentType = 'image/png';
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} else if (requestedPath.endsWith('.webp')) {
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contentType = 'image/webp';
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} else if (requestedPath.endsWith('.gif')) {
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contentType = 'image/gif';
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}
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// Return the file with appropriate headers
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return new NextResponse(fileContent, {
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status: 200,
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headers: {
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'Content-Type': contentType,
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'Cache-Control': 'public, max-age=31536000, immutable', // Cache for 1 year (thumbnails don't change)
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'Access-Control-Allow-Origin': '*', // Allow CORS if needed
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},
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});
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} catch (error) {
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console.error('[Thumbnails] Error serving thumbnail file:', error);
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return NextResponse.json(
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{ error: 'Internal server error' },
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{ status: 500 }
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);
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}
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}
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// HEAD request support for thumbnail validation
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export async function HEAD(
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request: Request,
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context: { params: Promise<{ path?: string[] }> }
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) {
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try {
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const params = await context.params;
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const pathSegments = params?.path || [];
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if (pathSegments.length === 0) {
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return new NextResponse(null, { status: 400 });
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}
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const requestedPath = path.join(THUMBNAILS_DIR, ...pathSegments);
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// Security: prevent directory traversal attacks
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if (!requestedPath.startsWith(THUMBNAILS_DIR)) {
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return new NextResponse(null, { status: 403 });
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}
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// Check if file exists
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if (!fs.existsSync(requestedPath)) {
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return new NextResponse(null, { status: 404 });
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}
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// Return headers only
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return new NextResponse(null, {
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status: 200,
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headers: {
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'Content-Type': 'image/jpeg', // Default for HEAD requests
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'Cache-Control': 'public, max-age=31536000, immutable',
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},
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});
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} catch (error) {
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console.error('[Thumbnails] Error in HEAD request:', error);
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return new NextResponse(null, { status: 500 });
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}
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}
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