main: added presigned url + favicon

Signed-off-by: nfel <nfilsaraee@gmail.com>

app/api/s3/presigned-url/route.ts

@@ -0,0 +1,69 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getPresignedUrl, getMultiplePresignedUrls } from '@/lib/s3';
+
+/**
+ * Generate pre-signed URL(s) for S3 objects
+ * POST /api/s3/presigned-url
+ *
+ * Body:
+ * - Single key: { "key": "path/to/file.mp3", "expiresIn": 3600 }
+ * - Multiple keys: { "keys": ["path/file1.mp3", "path/file2.mp3"], "expiresIn": 3600 }
+ */
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const { key, keys, expiresIn = 3600 } = body;
+
+    // Validate expiration time (max 7 days)
+    if (expiresIn > 604800) {
+      return NextResponse.json(
+        { error: 'expiresIn cannot exceed 7 days (604800 seconds)' },
+        { status: 400 }
+      );
+    }
+
+    // Handle single key
+    if (key) {
+      if (typeof key !== 'string' || !key.trim()) {
+        return NextResponse.json(
+          { error: 'Invalid key provided' },
+          { status: 400 }
+        );
+      }
+
+      const url = await getPresignedUrl(key, expiresIn);
+      return NextResponse.json({ url, expiresIn }, { status: 200 });
+    }
+
+    // Handle multiple keys
+    if (keys) {
+      if (!Array.isArray(keys) || keys.length === 0) {
+        return NextResponse.json(
+          { error: 'keys must be a non-empty array' },
+          { status: 400 }
+        );
+      }
+
+      if (keys.length > 100) {
+        return NextResponse.json(
+          { error: 'Cannot generate more than 100 URLs at once' },
+          { status: 400 }
+        );
+      }
+
+      const urls = await getMultiplePresignedUrls(keys, expiresIn);
+      return NextResponse.json({ urls, expiresIn }, { status: 200 });
+    }
+
+    return NextResponse.json(
+      { error: 'Either "key" or "keys" must be provided' },
+      { status: 400 }
+    );
+  } catch (error: any) {
+    console.error('Presigned URL generation error:', error);
+    return NextResponse.json(
+      { error: error.message || 'Failed to generate presigned URL' },
+      { status: 500 }
+    );
+  }
+}