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fix: stop Qidi slot parse throwing on null

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This commit is contained in:
Andrew
2026-08-04 18:12:42 +08:00
committed by Ian Chua
parent 8153e26b6d
commit 6515062a3a
4 changed files with 166 additions and 13 deletions
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src/slic3r/Utils/QidiPrinterAgent.cpp
+28 -13
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@@ -193,20 +193,10 @@ bool QidiPrinterAgent::fetch_slot_info(const std::string& base_url,
return false;
}
auto json = nlohmann::json::parse(response_body, nullptr, false, true);
if (json.is_discarded()) {
error = "Invalid JSON response";
nlohmann::json status;
nlohmann::json variables;
if (!parse_slot_response(response_body, status, variables, error))
return false;
}
if (!json.contains("result") || !json["result"].contains("status") || !json["result"]["status"].contains("save_variables") ||
!json["result"]["status"]["save_variables"].contains("variables")) {
error = "Unexpected JSON structure";
return false;
}
auto& variables = json["result"]["status"]["save_variables"]["variables"];
auto& status = json["result"]["status"];
box_count = variables.value("box_count", 1);
if (box_count < 0) {
@@ -281,6 +271,31 @@ bool QidiPrinterAgent::fetch_slot_info(const std::string& base_url,
return true;
}
bool QidiPrinterAgent::parse_slot_response(const std::string& response_body,
nlohmann::json& status,
nlohmann::json& variables,
std::string& error)
{
auto json = nlohmann::json::parse(response_body, nullptr, false, true);
if (json.is_discarded()) {
error = "Invalid JSON response";
return false;
}
if (!json.is_object() || !json.contains("result") || !json["result"].is_object() || !json["result"].contains("status") ||
!json["result"]["status"].is_object() || !json["result"]["status"].contains("save_variables") ||
!json["result"]["status"]["save_variables"].is_object() || !json["result"]["status"]["save_variables"].contains("variables") ||
!json["result"]["status"]["save_variables"]["variables"].is_object()) {
// why: Qidi firmware may send null here, but json::value() throws for it.
error = "Unexpected JSON structure: save_variables.variables must be an object";
return false;
}
status = json["result"]["status"];
variables = status["save_variables"]["variables"];
return true;
}
bool QidiPrinterAgent::fetch_filament_dict(const std::string& base_url,
const std::string& api_key,
QidiFilamentDict& dict,