From 42b28b94823553b4fc2d21be86900b0707c6a870 Mon Sep 17 00:00:00 2001
From: fiatjaf <fiatjaf@gmail.com>
Date: Mon, 12 Feb 2024 16:35:26 -0300
Subject: [PATCH] implement NIP-70, protected events.

---
 src/apps/relay/RelayIngester.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/apps/relay/RelayIngester.cpp b/src/apps/relay/RelayIngester.cpp
index d553f5d..77362f5 100644
--- a/src/apps/relay/RelayIngester.cpp
+++ b/src/apps/relay/RelayIngester.cpp
@@ -92,6 +92,17 @@ void RelayServer::ingesterProcessEvent(lmdb::txn &txn, uint64_t connId, std::str
 
     auto *flat = flatbuffers::GetRoot<NostrIndex::Event>(flatStr.data());
 
+    {
+        for (const auto &tagArr : origJson.at("tags").get_array()) {
+            auto tag = tagArr.get_array();
+            if (tag.size() == 1 && tag.at(0).get_string() == "-") {
+                LI << "Protected event, skipping";
+                sendOKResponse(connId, to_hex(sv(flat->id())), false, "blocked: event marked as protected");
+                return;
+            }
+        }
+    }
+
     {
         auto existing = lookupEventById(txn, sv(flat->id()));
         if (existing) {