Class: OpenapiRuby::Middleware::RequestValidation

Inherits:
Object
  • Object
show all
Defined in:
lib/openapi_ruby/middleware/request_validation.rb

Instance Method Summary collapse

Constructor Details

#initialize(app, options = {}) ⇒ RequestValidation

Returns a new instance of RequestValidation.



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# File 'lib/openapi_ruby/middleware/request_validation.rb', line 6

def initialize(app, options = {})
  @app = app
  @resolver = options[:schema_resolver] || SchemaResolver.new(spec_path: options[:spec_path])
  @strict = options.fetch(:strict, false)
  @coerce = options.fetch(:coerce, OpenapiRuby.configuration.coerce_params)
  @error_handler = options[:error_handler] || ErrorHandler.new
  @mode = options.fetch(:mode, OpenapiRuby.configuration.request_validation)
  @prefix = options[:prefix]
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/openapi_ruby/middleware/request_validation.rb', line 16

def call(env)
  return @app.call(env) if @mode == :disabled

  request = Rack::Request.new(env)

  # Skip if request doesn't match prefix
  if @prefix && !request.path_info.start_with?(@prefix)
    return @app.call(env)
  end

  # Strip prefix for path matching
  match_path = @prefix ? request.path_info.sub(@prefix, "") : request.path_info
  result = @resolver.find_operation(request.request_method, match_path)

  if result.nil?
    return strict? ? @error_handler.not_found(request.path_info) : @app.call(env)
  end

  operation = result[:operation]
  path_params = result[:path_params]
  parameters = operation.fetch("parameters", [])

  # Coerce params if enabled
  if @coerce
    env["rack.request.query_hash"] = Coercion.coerce_params(
      request.GET, parameters.select { |p| p["in"] == "query" }
    )
  end

  # Store operation info for downstream use
  env["openapi_ruby.operation"] = operation
  env["openapi_ruby.path_params"] = path_params
  env["openapi_ruby.path_template"] = result[:template]

  # Validate request
  errors = validate_request(request, operation, path_params)

  if errors.any?
    return @error_handler.invalid_request(errors) unless @mode == :warn_only

    env["openapi_ruby.request_errors"] = errors
    warn "[openapi_ruby] Request validation warnings: #{errors.join(", ")}"
  end

  @app.call(env)
end