Handle attributes

CHANGELOG.md

···
 
 - HTML and JSON body functions now include `charset=utf-8` in the content-type
   header.
+- The `require_content_type` function now handles additional attributes
+  correctly.
 
 ## v0.15.0 - 2024-05-12
 

src/wisp.gleam

···
   next: fn() -> Response,
 ) -> Response {
   case list.key_find(request.headers, "content-type") {
-    Ok(content_type) if content_type == expected -> next()
+    Ok(content_type) ->
+      // This header may have further such as `; charset=utf-8`, so discard
+      // that if it exists.
+      case string.split_once(content_type, ";") {
+        Ok(#(content_type, _)) if content_type == expected -> next()
+        _ if content_type == expected -> next()
+        _ -> unsupported_media_type([expected])
+      }
+
     _ -> unsupported_media_type([expected])
   }
 }

test/wisp_test.gleam

···
   |> should.equal(wisp.ok())
 }
 
+pub fn require_content_type_charset_test() {
+  {
+    let request =
+      testing.get("/", [#("content-type", "text/plain; charset=utf-8")])
+    use <- wisp.require_content_type(request, "text/plain")
+    wisp.ok()
+  }
+  |> should.equal(wisp.ok())
+}
+
 pub fn require_content_type_missing_test() {
   {
     let request = testing.get("/", [])