From 5bad1b8c6470f504339a742cfa8d213428a5c7f0 Mon Sep 17 00:00:00 2001
From: hozan23 <hozan23@karyontech.net>
Date: Sat, 15 Jun 2024 00:42:15 +0200
Subject: jsonrpc/server: check for the jsonrpc version in the request

---
 jsonrpc/src/server/mod.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'jsonrpc')

diff --git a/jsonrpc/src/server/mod.rs b/jsonrpc/src/server/mod.rs
index dd176d0..7ff1a8c 100644
--- a/jsonrpc/src/server/mod.rs
+++ b/jsonrpc/src/server/mod.rs
@@ -19,6 +19,7 @@ use response_queue::ResponseQueue;
 pub const INVALID_REQUEST_ERROR_MSG: &str = "Invalid request";
 pub const FAILED_TO_PARSE_ERROR_MSG: &str = "Failed to parse";
 pub const METHOD_NOT_FOUND_ERROR_MSG: &str = "Method not found";
+pub const UNSUPPORTED_JSONRPC_VERSION: &str = "Unsupported jsonrpc version";
 
 struct NewRequest {
     srvc_name: String,
@@ -175,6 +176,20 @@ impl Server {
                 return SanityCheckResult::ErrRes(response);
             }
         };
+
+        if rpc_msg.jsonrpc != message::JSONRPC_VERSION {
+            let response = message::Response {
+                error: Some(message::Error {
+                    code: message::INVALID_REQUEST_ERROR_CODE,
+                    message: UNSUPPORTED_JSONRPC_VERSION.to_string(),
+                    data: None,
+                }),
+                id: Some(rpc_msg.id),
+                ..Default::default()
+            };
+            return SanityCheckResult::ErrRes(response);
+        }
+
         debug!("<-- {rpc_msg}");
 
         // Parse the service name and its method
-- 
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