Async eqemu login credential lookup

loginserver/loginserver_webserver.cpp

@@ -158,6 +158,36 @@ namespace LoginserverWebserver {
 				LoginserverWebserver::SendResponse(response, res);
 			}
 		);
+
+		api.Post(
+			"/account/credentials/validate/external", [](const httplib::Request &request, httplib::Response &res) {
+			LoginserverWebserver::TokenManager::AuthCanRead(request, res);
+			Json::Value request_body = LoginserverWebserver::ParseRequestBody(request);
+			std::string username = request_body.get("username", "").asString();
+			std::string password = request_body.get("password", "").asString();
+
+			Json::Value response;
+			if (username.empty() || password.empty()) {
+				response["error"] = "Username or password not set";
+				LoginserverWebserver::SendResponse(response, res);
+				return;
+			}
+
+			bool credentials_valid = AccountManagement::CheckExternalLoginserverUserCredentials(
+				username,
+				password
+			);
+
+			if (credentials_valid) {
+				response["message"] = "Credentials valid!";
+			}
+			else {
+				response["error"] = "Credentials invalid!";
+			}
+
+			LoginserverWebserver::SendResponse(response, res);
+		}
+		);
 	}
 
 	/**
@@ -351,4 +381,4 @@ namespace LoginserverWebserver {
 
 		return {};
 	}
-}
+}