Add check that people can message others in guild.

src/routes/channel.rs

@@ -431,6 +431,10 @@ pub fn send_message(
     let permissions = with_permissions!(user, target);
 
     if !permissions.get_send_messages() {
+        if target.channel_type == 0 {
+            return Some(Response::LackingPermission(Permission::SendDirectMessages));
+        }
+
         return Some(Response::LackingPermission(Permission::SendMessages));
     }
 

src/routes/mod.rs

@@ -50,8 +50,9 @@ impl<'a> rocket::response::Responder<'a> for Permission {
         rocket::response::Response::build()
             .header(ContentType::JSON)
             .sized_body(Cursor::new(format!(
-                "{{\"error\":\"Lacking {:?} permission.\"}}",
-                self
+                "{{\"error\":\"Lacking permission: {:?}.\",\"permission\":{}}}",
+                self,
+                self as u32,
             )))
             .ok()
     }

src/routes/user.rs

@@ -157,7 +157,7 @@ pub fn dm(user: UserRef, target: UserRef) -> Response {
 			).is_ok() {
                 Response::Success(json!({ "id": id.to_string() }))
             } else {
-                Response::InternalServerError(json!({ "error": "Failed to create new chanel." }))
+                Response::InternalServerError(json!({ "error": "Failed to create new channel." }))
             }
 		}
 	} else {