* @brief Process an incoming MCP message */
| 63 | * @brief Process an incoming MCP message |
| 64 | */ |
| 65 | QByteArray API::MCPHandler::processMessage(const QByteArray& data, const QString& sessionId) |
| 66 | { |
| 67 | constexpr int kMaxBatchSize = 256; |
| 68 | |
| 69 | QJsonParseError error; |
| 70 | const auto doc = QJsonDocument::fromJson(data, &error); |
| 71 | |
| 72 | if (error.error != QJsonParseError::NoError) { |
| 73 | return MCP::MCPResponse::makeError( |
| 74 | QVariant(), MCP::ErrorCode::ParseError, QStringLiteral("JSON parse error")) |
| 75 | .toJsonBytes(); |
| 76 | } |
| 77 | |
| 78 | if (doc.isArray()) { |
| 79 | const auto batchArray = doc.array(); |
| 80 | |
| 81 | if (batchArray.isEmpty()) { |
| 82 | return MCP::MCPResponse::makeError( |
| 83 | QVariant(), MCP::ErrorCode::InvalidRequest, QStringLiteral("Batch cannot be empty")) |
| 84 | .toJsonBytes(); |
| 85 | } |
| 86 | |
| 87 | if (batchArray.size() > kMaxBatchSize) { |
| 88 | return MCP::MCPResponse::makeError(QVariant(), |
| 89 | MCP::ErrorCode::InvalidRequest, |
| 90 | QStringLiteral("Batch size exceeds limit of 256")) |
| 91 | .toJsonBytes(); |
| 92 | } |
| 93 | |
| 94 | QJsonArray responses; |
| 95 | |
| 96 | for (const auto& item : batchArray) { |
| 97 | if (!item.isObject()) { |
| 98 | const auto errorResponse = |
| 99 | MCP::MCPResponse::makeError( |
| 100 | QVariant(), MCP::ErrorCode::InvalidRequest, QStringLiteral("Batch item must be object")) |
| 101 | .toJson(); |
| 102 | responses.append(errorResponse); |
| 103 | continue; |
| 104 | } |
| 105 | |
| 106 | const auto request = MCP::MCPRequest::fromJson(item.toObject()); |
| 107 | |
| 108 | if (!request.isValid()) { |
| 109 | const auto errorResponse = |
| 110 | MCP::MCPResponse::makeError( |
| 111 | request.id, MCP::ErrorCode::InvalidRequest, QStringLiteral("Invalid JSON-RPC request")) |
| 112 | .toJson(); |
| 113 | responses.append(errorResponse); |
| 114 | continue; |
| 115 | } |
| 116 | |
| 117 | if (request.isNotification()) { |
| 118 | processRequest(request, sessionId); |
| 119 | } else { |
| 120 | const auto response = processRequest(request, sessionId); |
| 121 | responses.append(response.toJson()); |
| 122 | } |
no test coverage detected