1 files changed, 41 insertions, 0 deletions
diff --git a/azalea-protocol/src/packets/login/clientbound_custom_query_packet.rs b/azalea-protocol/src/packets/login/clientbound_custom_query_packet.rs
new file mode 100644
index 00000000..093176eb
--- /dev/null
+++ b/azalea-protocol/src/packets/login/clientbound_custom_query_packet.rs
@@ -0,0 +1,41 @@
+use std::hash::Hash;
+use tokio::io::BufReader;
+
+use crate::mc_buf::{self, Readable, Writable};
+
+use super::LoginPacket;
+
+#[derive(Hash, Clone, Debug)]
+pub struct ClientboundCustomQueryPacket {
+    pub transaction_id: u32,
+    // TODO: this should be a resource location
+    pub identifier: String,
+    pub data: Vec<u8>,
+}
+
+impl ClientboundCustomQueryPacket {
+    pub fn get(self) -> LoginPacket {
+        LoginPacket::ClientboundCustomQueryPacket(self)
+    }
+
+    pub fn write(&self, buf: &mut Vec<u8>) {
+        buf.write_varint(self.transaction_id as i32).unwrap();
+        buf.write_utf(&self.identifier).unwrap();
+        buf.write_bytes(&self.data).unwrap();
+    }
+
+    pub async fn read<T: tokio::io::AsyncRead + std::marker::Unpin + std::marker::Send>(
+        buf: &mut BufReader<T>,
+    ) -> Result<LoginPacket, String> {
+        let transaction_id = buf.read_varint().await?.0 as u32;
+        // TODO: this should be a resource location
+        let identifier = buf.read_utf().await?;
+        let data = buf.read_bytes(1048576).await?;
+        Ok(ClientboundCustomQueryPacket {
+            transaction_id,
+            identifier,
+            data,
+        }
+        .get())
+    }
+}