whodis-mcp-server
Version:
Whodis MCP Server for checking the availability of domain names using WHOIS lookups.
163 lines (162 loc) • 6.9 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ErrorCode = void 0;
exports.detectErrorType = detectErrorType;
exports.createUserFriendlyErrorMessage = createUserFriendlyErrorMessage;
exports.handleControllerError = handleControllerError;
const error_util_js_1 = require("./error.util.js");
const logger_util_js_1 = require("./logger.util.js");
/**
* Standard error codes for consistent handling
*/
var ErrorCode;
(function (ErrorCode) {
ErrorCode["NOT_FOUND"] = "NOT_FOUND";
ErrorCode["INVALID_CURSOR"] = "INVALID_CURSOR";
ErrorCode["ACCESS_DENIED"] = "ACCESS_DENIED";
ErrorCode["VALIDATION_ERROR"] = "VALIDATION_ERROR";
ErrorCode["UNEXPECTED_ERROR"] = "UNEXPECTED_ERROR";
})(ErrorCode || (exports.ErrorCode = ErrorCode = {}));
/**
* Detect specific error types from raw errors
* @param error The error to analyze
* @param context Context information for better error detection
* @returns Object containing the error code and status code
*/
function detectErrorType(error, context = {}) {
const methodLogger = logger_util_js_1.Logger.forContext('utils/error-handler.util.ts', 'detectErrorType');
methodLogger.debug(`Detecting error type`, { error, context });
const errorMessage = error instanceof Error ? error.message : String(error);
const statusCode = error instanceof Error && 'statusCode' in error
? error.statusCode
: undefined;
// Not Found detection
if (errorMessage.includes('not found') ||
errorMessage.includes('does not exist') ||
statusCode === 404) {
return { code: ErrorCode.NOT_FOUND, statusCode: 404 };
}
// Access Denied detection
if (errorMessage.includes('access') ||
errorMessage.includes('permission') ||
errorMessage.includes('authorize') ||
errorMessage.includes('authentication') ||
statusCode === 401 ||
statusCode === 403) {
return { code: ErrorCode.ACCESS_DENIED, statusCode: statusCode || 403 };
}
// Invalid Cursor detection
if ((errorMessage.includes('cursor') ||
errorMessage.includes('startAt') ||
errorMessage.includes('page')) &&
(errorMessage.includes('invalid') || errorMessage.includes('not valid'))) {
return { code: ErrorCode.INVALID_CURSOR, statusCode: 400 };
}
// Validation Error detection
if (errorMessage.includes('validation') ||
errorMessage.includes('invalid') ||
errorMessage.includes('required') ||
statusCode === 400 ||
statusCode === 422) {
return {
code: ErrorCode.VALIDATION_ERROR,
statusCode: statusCode || 400,
};
}
// Default to unexpected error
return {
code: ErrorCode.UNEXPECTED_ERROR,
statusCode: statusCode || 500,
};
}
/**
* Create user-friendly error messages based on error type and context
* @param code The error code
* @param context Context information for better error messages
* @param originalMessage The original error message
* @returns User-friendly error message
*/
function createUserFriendlyErrorMessage(code, context = {}, originalMessage) {
const methodLogger = logger_util_js_1.Logger.forContext('utils/error-handler.util.ts', 'createUserFriendlyErrorMessage');
const { entityType, entityId, operation } = context;
// Format entity ID for display
let entityIdStr = '';
if (entityId) {
if (typeof entityId === 'string') {
entityIdStr = entityId;
}
else {
// Handle object entityId
entityIdStr = Object.values(entityId).join('/');
}
}
// Determine entity display name
const entity = entityType
? `${entityType}${entityIdStr ? ` ${entityIdStr}` : ''}`
: 'Resource';
let message = '';
switch (code) {
case ErrorCode.NOT_FOUND:
message = `${entity} not found${entityIdStr ? `: ${entityIdStr}` : ''}. Verify the ID is correct and that you have access to this ${entityType?.toLowerCase() || 'resource'}.`;
break;
case ErrorCode.ACCESS_DENIED:
message = `Access denied for ${entity.toLowerCase()}${entityIdStr ? ` ${entityIdStr}` : ''}. Verify your credentials and permissions.`;
break;
case ErrorCode.INVALID_CURSOR:
message = `Invalid pagination cursor. Use the exact cursor string returned from previous results.`;
break;
case ErrorCode.VALIDATION_ERROR:
message =
originalMessage ||
`Invalid data provided for ${operation || 'operation'} ${entity.toLowerCase()}.`;
break;
default:
message = `An unexpected error occurred while ${operation || 'processing'} ${entity.toLowerCase()}.`;
}
// Include original message details if available and appropriate
if (originalMessage &&
code !== ErrorCode.NOT_FOUND &&
code !== ErrorCode.ACCESS_DENIED) {
message += ` Error details: ${originalMessage}`;
}
methodLogger.debug(`Created user-friendly message: ${message}`, {
code,
context,
});
return message;
}
/**
* Handle controller errors consistently
* @param error The error to handle
* @param context Context information for better error messages
* @returns Never returns, always throws an error
*/
function handleControllerError(error, context = {}) {
const methodLogger = logger_util_js_1.Logger.forContext('utils/error-handler.util.ts', 'handleControllerError');
// Extract error details
const errorMessage = error instanceof Error ? error.message : String(error);
const statusCode = error instanceof Error && 'statusCode' in error
? error.statusCode
: undefined;
// Detect error type using utility
const { code, statusCode: detectedStatus } = detectErrorType(error, context);
// Combine detected status with explicit status
const finalStatusCode = statusCode || detectedStatus;
// Format entity information for logging
const { entityType, entityId, operation } = context;
const entity = entityType || 'resource';
const entityIdStr = entityId
? typeof entityId === 'string'
? entityId
: JSON.stringify(entityId)
: '';
const actionStr = operation || 'processing';
// Log detailed error information
methodLogger.error(`Error ${actionStr} ${entity}${entityIdStr ? `: ${entityIdStr}` : ''}: ${errorMessage}`, error);
// Create user-friendly error message for the response
const message = code === ErrorCode.VALIDATION_ERROR
? errorMessage
: createUserFriendlyErrorMessage(code, context, errorMessage);
// Throw an appropriate API error with the user-friendly message
throw (0, error_util_js_1.createApiError)(message, finalStatusCode, error);
}