Class: HaveAPI::Client::Communicator

Inherits:
Object
  • Object
show all
Defined in:
lib/haveapi/client/communicator.rb

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(url, v = nil, verify_ssl: true, language: nil, language_header: nil) ⇒ Communicator

Returns a new instance of Communicator.



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# File 'lib/haveapi/client/communicator.rb', line 21

def initialize(url, v = nil, verify_ssl: true, language: nil, language_header: nil)
  @url = url
  @auth = Authentication::NoAuth.new(self, {}, {})
  @rest = RestClient::Resource.new(@url, verify_ssl: verify_ssl)
  @version = v
  @verify_ssl = verify_ssl
  @identity = 'haveapi-client-ruby'
  @language = language
  @language_header = language_header || I18n::DEFAULT_LANGUAGE_HEADER
end

Class Attribute Details

.auth_methods ⇒ Object (readonly)

Returns the value of attribute auth_methods.



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# File 'lib/haveapi/client/communicator.rb', line 10

def auth_methods
  @auth_methods
end

Instance Attribute Details

#auth ⇒ Object (readonly)

Returns the value of attribute auth.



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# File 'lib/haveapi/client/communicator.rb', line 18

def auth
  @auth
end

#identity ⇒ Object

Returns the value of attribute identity.



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# File 'lib/haveapi/client/communicator.rb', line 19

def identity
  @identity
end

#language ⇒ Object

Returns the value of attribute language.



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# File 'lib/haveapi/client/communicator.rb', line 18

def language
  @language
end

#language_header ⇒ Object

Returns the value of attribute language_header.



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# File 'lib/haveapi/client/communicator.rb', line 18

def language_header
  @language_header
end

#url ⇒ Object (readonly)

Returns the value of attribute url.



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# File 'lib/haveapi/client/communicator.rb', line 18

def url
  @url
end

#verify_ssl ⇒ Object (readonly)

Returns the value of attribute verify_ssl.



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# File 'lib/haveapi/client/communicator.rb', line 18

def verify_ssl
  @verify_ssl
end

Class Method Details

.register_auth_method(name, klass) ⇒ Object 



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# File 'lib/haveapi/client/communicator.rb', line 12

def register_auth_method(name, klass)
  @auth_methods ||= {}
  @auth_methods[name] = klass
end

Instance Method Details

#auth_save ⇒ Object 



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# File 'lib/haveapi/client/communicator.rb', line 83

def auth_save
  @auth.save
end

#authenticate(auth_method, options = {}, &block) ⇒ Object

Authenticate user with selected auth_method. auth_method is a name of registered authentication provider. options are specific for each authentication provider.



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# File 'lib/haveapi/client/communicator.rb', line 71

def authenticate(auth_method, options = {}, &block)
  desc = describe_api(@version)

  @auth = self.class.auth_methods[auth_method].new(
    self,
    desc[:authentication][auth_method],
    options,
    &block
  )
  @rest = @auth.resource || @rest
end

#available_versions ⇒ Object 



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# File 'lib/haveapi/client/communicator.rb', line 87

def available_versions
  description_for(path_for, { describe: :versions })
end

#call(action, params = {}) ⇒ Object 



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# File 'lib/haveapi/client/communicator.rb', line 140

def call(action, params = {})
  args = []
  input_namespace = action.input && action.namespace(:input)
  meta = nil

  if params.is_a?(Hash) && params[:meta]
    meta = params[:meta]
    params.delete(:meta)
  end

  if %w[POST PUT].include?(action.http_method)
    ns = {}
    ns[input_namespace] = params if input_namespace
    ns[:_meta] = meta if meta
    ns.update(@auth.request_payload)

    args << ns.to_json
    args << base_headers(content_type: :json).update(@auth.request_headers)

  elsif %w[GET DELETE].include?(action.http_method)
    get_params = {}

    params.each do |k, v|
      get_params["#{input_namespace}[#{k}]"] =
        v.nil? ? '' : v
    end

    if meta
      meta.each do |k, v|
        get_params["_meta[#{k}]"] = v.nil? ? '' : v # FIXME: read _meta namespace from the description
      end
    end

    args << base_headers(
      params: get_params.update(@auth.request_query_params)
    ).update(@auth.request_headers)
  end

  begin
    response = parse(@rest[action.prepared_path].method(action.http_method.downcase.to_sym).call(*args))
  rescue RestClient::Forbidden
    return error(client_message('errors.access_forbidden'))
  rescue RestClient::ResourceNotFound,
         RestClient::BadRequest => e
    response = parse(e.http_body)
  rescue StandardError => e
    return error(client_message('errors.fatal_api_error', error: e.inspect))
  end

  if response[:status]
    ok(response[:response])

  else
    error(response[:message], response[:errors])
  end
end

#client_message(key, **values) ⇒ Object 



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# File 'lib/haveapi/client/communicator.rb', line 46

def client_message(key, **values)
  I18n.t(@language, key, values)
end

#compatible? ⇒ :compatible, ...

Returns:

  • (:compatible) —

    if perfectly compatible

  • (:imperfect) —

    if minor version differs

  • (false) —

    if not compatible



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# File 'lib/haveapi/client/communicator.rb', line 57

def compatible?
  description_for(path_for, { describe: :versions })
  if @proto_version == HaveAPI::Client::PROTOCOL_VERSION
    :compatible
  else
    :imperfect
  end
rescue ProtocolError
  false
end

#describe_action(action) ⇒ Object 



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# File 'lib/haveapi/client/communicator.rb', line 107

def describe_action(action)
  description_for(action.prepared_help)
end

#describe_api(v = nil) ⇒ Object 



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# File 'lib/haveapi/client/communicator.rb', line 91

def describe_api(v = nil)
  description_for(path_for(v), v.nil? ? { describe: :default } : {})
end

#describe_resource(path) ⇒ Object 



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# File 'lib/haveapi/client/communicator.rb', line 95

def describe_resource(path)
  tmp = describe_api(@version)

  path.each do |r|
    tmp = tmp[:resources][r.to_sym]

    return false unless tmp
  end

  tmp
end

#get_action(resources, action, args) ⇒ Object 



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# File 'lib/haveapi/client/communicator.rb', line 111

def get_action(resources, action, args)
  tmp = describe_api(@version)

  resources.each do |r|
    tmp = tmp[:resources][r.to_sym]

    return false unless tmp
  end

  a = tmp[:actions][action]

  unless a # search in aliases
    tmp[:actions].each_value do |v|
      if v[:aliases].include?(action.to_s)
        a = v
        break
      end
    end
  end

  if a
    obj = Action.new(nil, self, action, a, args)
    obj.resource_path = resources
    obj
  else
    false
  end
end

#inspect ⇒ Object 



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# File 'lib/haveapi/client/communicator.rb', line 50

def inspect
  "#<#{self.class.name} @url=#{@url} @version=#{@version} @auth=#{@auth.class.name}>"
end

#language_headers ⇒ Object 



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# File 'lib/haveapi/client/communicator.rb', line 42

def language_headers
  I18n.request_headers(@language, @language_header)
end