Module: GPTJsonRpcServer

Defined in:
lib/clamo/gpt_json_rpc_server.rb

Constant Summary collapse

PROTOCOL_VERSION = 
"2.0"

Class Method Summary collapse

Class Method Details

.handle_request(object:, request_json:) ⇒ Object 



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# File 'lib/clamo/gpt_json_rpc_server.rb', line 8

def self.handle_request(object:, request_json:)
  requests = JSON.parse(request_json)
  if requests.is_a?(Array)
    responses = requests.map do |request|
      Thread.new { process_request(object, request) }
    end.map(&:value).compact
    responses.empty? ? nil : responses.to_json
  else
    response = process_request(object, requests)
    response&.to_json
  end
rescue JSON::ParserError
  { jsonrpc: PROTOCOL_VERSION, error: { code: -32_700, message: "Parse error" }, id: nil }.to_json
end

.process_request(object, request) ⇒ Object 



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# File 'lib/clamo/gpt_json_rpc_server.rb', line 23

def self.process_request(object, request)
  method = request["method"]
  params = request["params"]
  id = request["id"]

  unless valid_id?(id)
    return { jsonrpc: PROTOCOL_VERSION, error: { code: -32_600, message: "Invalid Request" }, id: nil }
  end

  unless method.is_a?(String) && object.public_methods(false).include?(method.to_sym)
    return { jsonrpc: PROTOCOL_VERSION, error: { code: -32_601, message: "Method not found" }, id: id }
  end

  method_object = object.method(method)
  param_list = method_object.parameters
  valid_params = case params
                 when Array
                   param_list.none? { |type, _| type == :rest } && params.size == param_list.count do |type, _|
                     i[req opt rest].include?(type)
                   end
                 when Hash
                   required_params = param_list.slice(:keyreq).map(&:last)
                   required_params.all? { |key| params.key?(key) } && param_list.all? do |type, name|
                     type != :keyreq || params.key?(name)
                   end
                 when NilClass
                   param_list.empty?
                 else
                   false
                 end

  unless valid_params
    return { jsonrpc: PROTOCOL_VERSION, error: { code: -32_602, message: "Invalid params" },
             id: id }
  end

  if id.nil?
    # Treat id: null as a notification
    Thread.new { safe_call_method(method_object, params) }
    return nil
  end

  begin
    result = safe_call_method(method_object, params)
    { jsonrpc: PROTOCOL_VERSION, result: result, id: id }
  rescue StandardError => e
    { jsonrpc: PROTOCOL_VERSION, error: { code: -32_603, message: "Internal error", data: e.message }, id: id }
  end
end

.safe_call_method(method_object, params) ⇒ Object 



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# File 'lib/clamo/gpt_json_rpc_server.rb', line 73

def self.safe_call_method(method_object, params)
  if params.is_a?(Array)
    method_object.call(*params)
  elsif params.is_a?(Hash)
    method_object.call(**params)
  else
    method_object.call
  end
end

.valid_id?(id) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/clamo/gpt_json_rpc_server.rb', line 83

def self.valid_id?(id)
  return false unless id.is_a?(String) || id.is_a?(Numeric) || id.nil?
  return false if id.is_a?(Numeric) && id != id.to_i

  true
end