Class: RHACK::OAuthClient

Inherits:
Client show all
Defined in:
lib/rhack/clients/oauth.rb

Instance Attribute Summary collapse

Attributes inherited from Client

#f, #service, #storage

Instance Method Summary collapse

Methods inherited from Client

#account, #go, inherited, #inspect, #login, method_missing, #route, #scrape!, store

Constructor Details

#initialize(*args) ⇒ OAuthClient

Returns a new instance of OAuthClient.



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# File 'lib/rhack/clients/oauth.rb', line 22

def initialize *args
  @users_data = {}
  @oauth_tokens = {}
  @oauth_states_users = {}
  @storage = self.class.storage
  service, frame, opts = args.get_opts [:api, nil], {}
  super service, frame, {cp: false, wait: true, json: true, scouts: 1}.merge(opts)
end

Instance Attribute Details

#oauth_tokens ⇒ Object (readonly)

Returns the value of attribute oauth_tokens.



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# File 'lib/rhack/clients/oauth.rb', line 16

def oauth_tokens
  @oauth_tokens
end

#users_data ⇒ Object

just a buffer for one action @ => hash<last used user data>



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# File 'lib/rhack/clients/oauth.rb', line 20

def users_data
  @users_data
end

Instance Method Details

#api(action, *args, &block) ⇒ Object

Если придёт мысль делать враппер клиента по запросу

@ action : url or reference to ::API @ args :

token : token or state_params
action_params : smth to append to url



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# File 'lib/rhack/clients/oauth.rb', line 165

def api(action, *args, &block)
  if action_data = API(action)
    action, scope = action_data.values_at :path, :scope
    app_token = action_data[:token] == :application
  end
  token, opts = args.get_opts [app_token ? ['__app__'] : ['__default__']]
  opts = opts.symbolize_keys
  action_params = opts.delete(:params) || {}
  redirect_params = opts.extract!(:redirect_protocol)
  
  if token.is Array 
    token[1] ||= scope
    state_params = token
    L.debug state_params
    request_params = [token[0], (token[1] ? {scope: token[1]} : {}).merge(redirect_params)]
    L.debug request_params
    token = validate(*request_params)
    if token.is Hash
      L.debug token
      if block
        return {res: block.(token)}
      else
        return token
      end
    end
  end
  unless token
    raise NoTokenError
  end
  
  L.debug state_params
  action += '?' if !action['?']
  action += action_params.urlencode
  L.debug [action_data, action, token]
  opts = {proc_result: block, headers: {'Referer' => nil}, result: CodeIndiffirentPage}.merge(opts)
  # TODO: option to 
  @f.run(route(:api) % {action: action} + token, opts) {|page|
    if page.hash and page.hash != true and error = page.hash.error
      L.debug state_params
      if error.code.in([190, 100]) and state_params
        user_data state_params, :clear
        L.warn error.message
        if request_params
          {oauth_url: get_oauth_url(*request_params)}
        end
      else
        raise OAuthError, error.message
      end
    else
      page
    end
  }
end

#get_application_oauth_token(&block) ⇒ Object 



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# File 'lib/rhack/clients/oauth.rb', line 143

def get_application_oauth_token(&block)
  @f.run(route(:oauth)[:token] + {
    grant_type: 'client_credentials',
    client_id: OAUTH(:id), 
    client_secret: OAUTH(:secret)
  }.urlencode, raw: true, proc_result: block) {|curl|
    if curl.res.code == 200
      body = curl.res.body
      hash = '{['[body[0]] ? body.from_json(symbolize_keys: true) : body.to_params
      user_data(['__app__', nil], [hash.access_token])[0]
    else
      raise OAuthError, curl.res.body
    end
  }
end

#get_oauth_token(url_params = {}, &block) ⇒ Object

@ url_params : :state, …



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# File 'lib/rhack/clients/oauth.rb', line 102

def get_oauth_token(url_params={}, &block)
  state = url_params.delete :state
  L.debug state
  if state_params = @oauth_states_users[state]
    if data = user_data(state_params)
      # code is allready used, return token
      return data[0]
    end
  else
    raise StateError, "Couldn't find user authentication state. Please, retry authorization from start"
  end
  
  url_params[:redirect_uri] = OAUTH(:landing).dup
  L.debug url_params
  if redirect_protocol = url_params.delete(:redirect_protocol)
    url_params[:redirect_uri].sub!(/^\w+/, redirect_protocol)
  end
  L.debug url_params
  @f.run({}, route(:oauth)[:token] + {
    grant_type: 'authorization_code',
    client_id: OAUTH(:id), 
    client_secret: OAUTH(:secret)
  }.merge(url_params).urlencode, raw: true, proc_result: block) {|curl|
    L.debug curl.res
    L.debug curl.res.body
    # TODO: refactor parse type selector: raw, json, hash, xml...
    # from_json -> (symbolize_keys: true)
    if curl.res.code == 200
      body = curl.res.body
      hash = '{['[body[0]] ? body.from_json(symbolize_keys: true) : body.to_params
      token = hash.access_token
      data = [token, Time.now.to_i + (hash.expires || hash.expires_in).to_i]
      L.debug token
      user_data(state_params, data)
      token
    else
      raise OAuthError, curl.res.body
    end
  }
end

#get_oauth_url(user_id = '__default__', url_params = {}) ⇒ Object

usually called internally



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# File 'lib/rhack/clients/oauth.rb', line 84

def get_oauth_url(user_id='__default__', url_params={})
  state = String.rand(64)
  @oauth_states_users[state] = [user_id, url_params[:scope]]
  # TODO: change it with something more consious
  url_params[:redirect_uri] = OAUTH(:landing).dup
  L.debug url_params
  if redirect_protocol = url_params.delete(:redirect_protocol)
    url_params[:redirect_uri].sub!(/^\w+/, redirect_protocol)
  end
  L.debug url_params
  @oauth_url = route(:oauth)[:auth] + {
    response_type: 'code', 
    client_id: OAUTH(:id),
    state: state
  }.merge(url_params).urlencode
end

#user_data(state_params, data = nil) ⇒ Object

@ state_params : [string<user_id>, (strings*“,”)<scope>] persistent: state_params -> [string token, int expires]



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# File 'lib/rhack/clients/oauth.rb', line 64

def user_data(state_params, data=nil)
  key = "#{self.class.name.sub('RHACK::', '').underscore}:tokens"
  if data
    if data == :clear
      @oauth_tokens.delete state_params
      $redis.hdel key, state_params*':'
    else
      @oauth_tokens[state_params] = data
      $redis.hset key, state_params*':', data*','
    end
  elsif !@oauth_tokens[state_params]
    if data = $redis.hget(key, state_params*':')
      token, expire = data/','
      @oauth_tokens[state_params] = [token, expire.to_i]
    end
  end
  @users_data[state_params[0]] = @oauth_tokens[state_params]
end

#validate(user_id, url_params = {}) ⇒ Object

TODO:



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# File 'lib/rhack/clients/oauth.rb', line 36

def validate(user_id, url_params={})
  if action = url_params.delete(:action)
    if action_params = API(action)
      url_params = action_params.slice(:scope).merge(url_params)
    end
  end
  if data = user_data([user_id, url_params[:scope]])
    token, expires = data
    if user_id != '__app__'
      if token and expires
        # substracting a minute so that "last moment" request wouldn't fail
        if expires - 60 < Time.now.to_i
          token = false
        end
      else
        token = false
      end
    end
  end
  if token
    block_given? ? yield(token) : token
  else
    {oauth_url: get_oauth_url(user_id, url_params)}
  end
end