Add configurable IPFS gateway URL with local gateway as primary

- IPFS_GATEWAY_URL env var for local gateway (e.g., https://ipfs.celery-artdag.rose-ash.com)
- Local gateway shown first with green button when configured
- Removed Pinata from public gateways list

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker-compose.yml

@@ -49,7 +49,7 @@ services:
       - DATABASE_URL=postgresql://artdag:artdag@postgres:5432/artdag
       - IPFS_API=/dns/ipfs/tcp/5001
       - CACHE_DIR=/data/cache
-      # L2_SERVER and L2_DOMAIN from .env file
+      # L2_SERVER, L2_DOMAIN, IPFS_GATEWAY_URL from .env file
     volumes:
       - l1_cache:/data/cache
     depends_on:

server.py

@@ -40,6 +40,9 @@ L1_PUBLIC_URL = os.environ.get("L1_PUBLIC_URL", "http://localhost:8100")
 # Default L2 for login redirect when not logged in (user can login to any L2)
 DEFAULT_L2_SERVER = os.environ.get("DEFAULT_L2_SERVER", "http://localhost:8200")
 
+# IPFS gateway URL for public access to IPFS content
+IPFS_GATEWAY_URL = os.environ.get("IPFS_GATEWAY_URL", "")
+
 # Cache directory (use /data/cache in Docker, ~/.artdag/cache locally)
 CACHE_DIR = Path(os.environ.get("CACHE_DIR", str(Path.home() / ".artdag" / "cache")))
 CACHE_DIR.mkdir(parents=True, exist_ok=True)
@@ -1778,6 +1781,30 @@ async def cache_detail(content_hash: str, request: Request):
 
         # Add IPFS section if we have a CID
         if ipfs_cid:
+            # Build gateway links - local gateway first if configured
+            gateway_links = []
+            if IPFS_GATEWAY_URL:
+                gateway_links.append(f'''
+                    <a href="{IPFS_GATEWAY_URL}/ipfs/{ipfs_cid}" target="_blank" rel="noopener"
+                       class="px-3 py-1 bg-green-600 hover:bg-green-700 text-white text-sm rounded-lg transition-colors">
+                        Local Gateway
+                    </a>''')
+            gateway_links.extend([
+                f'''<a href="https://ipfs.io/ipfs/{ipfs_cid}" target="_blank" rel="noopener"
+                       class="px-3 py-1 bg-purple-600 hover:bg-purple-700 text-white text-sm rounded-lg transition-colors">
+                        ipfs.io
+                    </a>''',
+                f'''<a href="https://dweb.link/ipfs/{ipfs_cid}" target="_blank" rel="noopener"
+                       class="px-3 py-1 bg-purple-600 hover:bg-purple-700 text-white text-sm rounded-lg transition-colors">
+                        dweb.link
+                    </a>''',
+                f'''<a href="https://cloudflare-ipfs.com/ipfs/{ipfs_cid}" target="_blank" rel="noopener"
+                       class="px-3 py-1 bg-purple-600 hover:bg-purple-700 text-white text-sm rounded-lg transition-colors">
+                        Cloudflare
+                    </a>''',
+            ])
+            gateways_html = '\n'.join(gateway_links)
+
             content += f'''
             <div class="border-t border-dark-500 pt-6 mt-6">
                 <h2 class="text-lg font-semibold text-white mb-4">IPFS</h2>
@@ -1785,24 +1812,9 @@ async def cache_detail(content_hash: str, request: Request):
                     <div class="text-sm text-gray-400 mb-1">Content Identifier (CID)</div>
                     <div class="font-mono text-xs text-gray-200 break-all">{ipfs_cid}</div>
                 </div>
-                <div class="text-sm text-gray-400 mb-2">Public Gateways:</div>
+                <div class="text-sm text-gray-400 mb-2">Gateways:</div>
                 <div class="flex flex-wrap gap-2">
-                    <a href="https://ipfs.io/ipfs/{ipfs_cid}" target="_blank" rel="noopener"
+                    {gateways_html}
-                       class="px-3 py-1 bg-purple-600 hover:bg-purple-700 text-white text-sm rounded-lg transition-colors">
-                        ipfs.io
-                    </a>
-                    <a href="https://dweb.link/ipfs/{ipfs_cid}" target="_blank" rel="noopener"
-                       class="px-3 py-1 bg-purple-600 hover:bg-purple-700 text-white text-sm rounded-lg transition-colors">
-                        dweb.link
-                    </a>
-                    <a href="https://cloudflare-ipfs.com/ipfs/{ipfs_cid}" target="_blank" rel="noopener"
-                       class="px-3 py-1 bg-purple-600 hover:bg-purple-700 text-white text-sm rounded-lg transition-colors">
-                        Cloudflare
-                    </a>
-                    <a href="https://gateway.pinata.cloud/ipfs/{ipfs_cid}" target="_blank" rel="noopener"
-                       class="px-3 py-1 bg-purple-600 hover:bg-purple-700 text-white text-sm rounded-lg transition-colors">
-                        Pinata
-                    </a>
                 </div>
             </div>
             '''