From a3805b831121b79ec1a2e38f2adcd12b6ecf568b Mon Sep 17 00:00:00 2001
From: Mia <mia@parakeet.at>
Date: Tue, 15 Jul 2025 22:01:55 +0100
Subject: [PATCH] fix(did-resolver): ensure content-type is text/plain and is a
 did

closes #33
---
 did-resolver/src/lib.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/did-resolver/src/lib.rs b/did-resolver/src/lib.rs
index 5edf2aff..e53390cc 100644
--- a/did-resolver/src/lib.rs
+++ b/did-resolver/src/lib.rs
@@ -1,6 +1,7 @@
 use error::Error;
 use hickory_resolver::proto::serialize::binary::BinEncodable;
 use hickory_resolver::TokioAsyncResolver;
+use reqwest::header::CONTENT_TYPE;
 use reqwest::{Client, StatusCode};
 
 pub mod error;
@@ -129,7 +130,16 @@ impl Resolver {
             .await?
             .error_for_status()?;
 
+        if let Some(ct) = res.headers().get(CONTENT_TYPE) {
+            if ct != "text/plain" {
+                return Ok(None);
+            }
+        }
+
         let did = res.text().await?;
+        if !did.starts_with("did:") {
+            return Ok(None);
+        }
 
         Ok(Some(did))
     }
-- 
2.51.2