rnr-mcp-server/build/utils/validation.js

A Model Context Protocol (MCP) server for React Native Reusables components, providing AI assistants with access to component source code, demos, and metadata for React Native development.

import Joi from 'joi';
/**
 * Validation schemas for different request types
 */
export const validationSchemas = {
    // Component-related schemas
    componentName: Joi.object({
        componentName: Joi.string().required().min(1).max(100)
            .description('Name of the shadcn/ui component')
    }),
    // Search schemas
    searchQuery: Joi.object({
        query: Joi.string().required().min(1).max(500)
            .description('Search query string')
    }),
    // Optional query schemas
    optionalQuery: Joi.object({
        query: Joi.string().optional().max(500)
            .description('Optional query string')
    }),
    // Block schemas
    blockQuery: Joi.object({
        query: Joi.string().optional().max(500)
            .description('Optional search query'),
        category: Joi.string().optional().max(100)
            .description('Optional category filter')
    }),
    // Directory structure schemas
    directoryStructure: Joi.object({
        path: Joi.string().optional().max(500)
            .description('Path within the repository'),
        owner: Joi.string().optional().max(100)
            .description('Repository owner'),
        repo: Joi.string().optional().max(100)
            .description('Repository name'),
        branch: Joi.string().optional().max(100)
            .description('Branch name')
    }),
    // Block schemas
    blockRequest: Joi.object({
        blockName: Joi.string().required().min(1).max(200)
            .description('Name of the block'),
        includeComponents: Joi.boolean().optional()
            .description('Whether to include component files')
    }),
    // Resource schemas
    resourceRequest: Joi.object({
        uri: Joi.string().required().min(1).max(1000)
            .description('Resource URI')
    }),
    // Prompt schemas
    promptRequest: Joi.object({
        name: Joi.string().required().min(1).max(200)
            .description('Prompt name'),
        arguments: Joi.object().optional()
            .description('Prompt arguments')
    }),
    // Tool schemas
    toolRequest: Joi.object({
        name: Joi.string().required().min(1).max(200)
            .description('Tool name'),
        arguments: Joi.object().optional()
            .description('Tool arguments')
    })
};
/**
 * Validate request parameters against a schema
 * @param schema Joi schema to validate against
 * @param params Parameters to validate
 * @returns Validated parameters
 * @throws ValidationError if validation fails
 */
export function validateRequest(schema, params) {
    try {
        const { error, value } = schema.validate(params, {
            abortEarly: false,
            stripUnknown: true,
            allowUnknown: false
        });
        if (error) {
            const errorMessages = error.details.map(detail => `${detail.path.join('.')}: ${detail.message}`).join(', ');
            throw new Error(`Validation failed: ${errorMessages}`);
        }
        return value;
    }
    catch (error) {
        if (error instanceof Error) {
            throw error;
        }
        throw new Error(`Unexpected validation error: ${error instanceof Error ? error.message : String(error)}`);
    }
}
/**
 * Get validation schema for a specific method
 * @param method Method name
 * @returns Joi schema or undefined
 */
export function getValidationSchema(method) {
    const schemaMap = {
        // Component methods
        'get_component': validationSchemas.componentName,
        'get_component_demo': validationSchemas.componentName,
        'get_component_metadata': validationSchemas.componentName,
        'get_component_details': validationSchemas.componentName,
        'get_examples': validationSchemas.componentName,
        'get_usage': validationSchemas.componentName,
        // Search methods
        'search_components': validationSchemas.searchQuery,
        'get_themes': validationSchemas.optionalQuery,
        'get_blocks': validationSchemas.blockQuery,
        // Directory methods
        'get_directory_structure': validationSchemas.directoryStructure,
        // Block methods
        'get_block': validationSchemas.blockRequest,
        // Resource methods
        'read_resource': validationSchemas.resourceRequest,
        // Prompt methods
        'get_prompt': validationSchemas.promptRequest,
        // Tool methods
        'call_tool': validationSchemas.toolRequest
    };
    return schemaMap[method];
}
/**
 * Validate and sanitize input parameters
 * @param method Method name
 * @param params Parameters to validate
 * @returns Validated and sanitized parameters
 */
export function validateAndSanitizeParams(method, params) {
    const schema = getValidationSchema(method);
    if (!schema) {
        // If no specific schema found, return params as-is
        return params;
    }
    return validateRequest(schema, params);
}