Class: OmniAuth::Strategies::Discourse::SSO

Inherits:
Object
  • Object
show all
Defined in:
lib/omniauth/strategies/discourse/sso.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(sso_secret, sso_url, return_url, nonce = nil) ⇒ SSO

Returns a new instance of SSO.



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# File 'lib/omniauth/strategies/discourse/sso.rb', line 9

def initialize(sso_secret, sso_url, return_url, nonce = nil)
  @sso_secret, @sso_url, @return_url = sso_secret, sso_url, return_url
  @nonce = nonce ? nonce : generate_nonce!
end

Instance Attribute Details

#message ⇒ Object

Returns the value of attribute message.



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# File 'lib/omniauth/strategies/discourse/sso.rb', line 7

def message
  @message
end

#nonce ⇒ Object

Returns the value of attribute nonce.



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# File 'lib/omniauth/strategies/discourse/sso.rb', line 7

def nonce
  @nonce
end

#status ⇒ Object

Returns the value of attribute status.



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# File 'lib/omniauth/strategies/discourse/sso.rb', line 7

def status
  @status
end

#user_info ⇒ Object

Returns the value of attribute user_info.



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# File 'lib/omniauth/strategies/discourse/sso.rb', line 7

def 
  @user_info
end

Instance Method Details

#generate_nonce! ⇒ Object 



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# File 'lib/omniauth/strategies/discourse/sso.rb', line 14

def generate_nonce!
  SecureRandom.hex()
end

#parse(params) ⇒ Object 



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# File 'lib/omniauth/strategies/discourse/sso.rb', line 22

def parse(params)
  #params should be something that looks like: {"sso": "xxxxxx", "sig": "yyyyyy"} 
  if get_hmac_hex_string(params["sso"]) == params["sig"] 
    if base64? params["sso"]
      decoded_hash = Rack::Utils.parse_query(Base64.decode64(params["sso"]))
      decoded_hash.symbolize_keys!
      if decoded_hash[:nonce] == @nonce   
        @status = "success"
        decoded_hash.delete(:nonce)
        @user_info = decoded_hash
        @message = "SSO verification passed."
        return self
      else
        @status = "error"
        @user_info = nil
        @message = "SSO verification failed. Nonce mismatch."
        return nil
      end  
    else
      @status = "error"
      @user_info = nil
      @message = "The sso string is supposed to be encoded in Base64."
      return nil       
    end
  else
    @status = "error"
    @user_info = nil
    @message = "HMAC mismatch. The message may have been tampered with."
    return nil          
  end
end

#request_url ⇒ Object 



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# File 'lib/omniauth/strategies/discourse/sso.rb', line 18

def request_url
  "#{ @sso_url }?sso=#{ url_encoded_payload }&sig=#{ hex_signature }"
end