azalea

1 files changed, 44 insertions, 0 deletions

diff --git a/azalea-client/src/ping.rs b/azalea-client/src/ping.rs
new file mode 100644
index 00000000..87ccdf66
--- /dev/null
+++ b/azalea-client/src/ping.rs
@@ -0,0 +1,44 @@
+///! Ping Minecraft servers.
+use azalea_protocol::{
+    connect::HandshakeConnection,
+    packets::{
+        handshake::client_intention_packet::ClientIntentionPacket,
+        status::{
+            clientbound_status_response_packet::ClientboundStatusResponsePacket,
+            serverbound_status_request_packet::ServerboundStatusRequestPacket, StatusPacket,
+        },
+        ConnectionProtocol, PROTOCOL_VERSION,
+    },
+    resolver, ServerAddress,
+};
+
+pub async fn ping_server(
+    address: &ServerAddress,
+) -> Result<ClientboundStatusResponsePacket, String> {
+    let resolved_address = resolver::resolve_address(address).await?;
+
+    let mut conn = HandshakeConnection::new(&resolved_address).await?;
+
+    // send the client intention packet and switch to the status state
+    conn.write(
+        ClientIntentionPacket {
+            protocol_version: PROTOCOL_VERSION,
+            hostname: address.host.clone(),
+            port: address.port,
+            intention: ConnectionProtocol::Status,
+        }
+        .get(),
+    )
+    .await;
+    let mut conn = conn.status();
+
+    // send the empty status request packet
+    conn.write(ServerboundStatusRequestPacket {}.get()).await;
+
+    let packet = conn.read().await.unwrap();
+
+    match packet {
+        StatusPacket::ClientboundStatusResponsePacket(p) => Ok(*p),
+        _ => Err("Invalid packet type".to_string()),
+    }
+}