Class: Connfu::ConnfuMessageFormatter

Inherits:
Object
  • Object
show all
Includes:
ConnfuLogger
Defined in:
lib/connfu/connfu_message_formatter.rb

Overview

This class is in charge of formatting the incoming messages It’s used by any connFu listener to format a raw message got from the streaming API to a Connfu::Message instance

Class Method Summary collapse

Methods included from ConnfuLogger

included, #logger

Class Method Details

.format_message(message) ⇒ Object

Convert an inbound twitter/RSS event to a Message instance.

Parameters

  • message raw JSON decoded message

Return

Array of Connfu::Message instances



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# File 'lib/connfu/connfu_message_formatter.rb', line 26

def format_message(message)
  message.is_a?(String) and message = ActiveSupport::JSON.decode(message)
  values = []

  # internal method that process the message
  fetch_values = lambda { |msg|
    begin
      if msg.is_a?(Hash)
        sender = msg["actor"]["id"]
        recipients = nil
        user_mentions = msg["object"]["entities"]["user_mentions"]
        logger.debug(user_mentions)
        if user_mentions.is_a?(Array) && user_mentions.length > 0
          recipients = []
          user_mentions.each { |recipient|
            recipients << recipient
          }
          if recipients.length.eql?(1)
            recipients = recipients[0]
          end
        end
        channel_info = msg["backchat"]["bare_uri"].split(":")
        logger.debug(channel_info)
        params = {
            :id => msg["object"]["id"],
            :content => msg["object"]["content"],
            :message_type => "new",
            :channel_type => channel_info[0],
            :channel_name => channel_info[1][2..-2],
            :from => sender,
            :to => recipients
        }
        params
      else
        logger.error("Invalid message format: #{msg}")
        nil
      end
    rescue => ex
      logger.error("Unable to fetch values from message #{msg}. Caught exception #{ex}")
      nil
    end
  }

  if message.is_a?(Array)
    message.each { |msg|
      if msg.respond_to?("has_key?") && msg.has_key?("backchat") && msg["backchat"].has_key?("source")
        case msg["backchat"]["source"].downcase
        when "twitter"
          params = fetch_values.call(msg)
        when "webfeed"
          params = format_rss_message(msg)
        else
          params = nil
        end
        # include the message if valid params
        params.nil? or values << Connfu::Message.new(params)
      end
    }
  else
    if message.respond_to?("has_key?") && message.has_key?("backchat") && message["backchat"].has_key?("source")
      case message["backchat"]["source"].downcase
      when "twitter"
        params = fetch_values.call(message)
      when "webfeed"
        params = format_rss_message(message)
      else
        params = nil
      end
      # include the message if valid params
      params.nil? or values << Connfu::Message.new(params)
    end
  end
  values
end

.format_rss_message(msg) ⇒ Object 



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# File 'lib/connfu/connfu_message_formatter.rb', line 150

def format_rss_message(msg)
  begin
    if msg.is_a?(Hash)
      params = {
          :id => msg["object"]["id"],
          :content => msg["title"],
          :message_type => "new",
          :channel_type => "rss",
          :channel_name => msg["backchat"]["bare_uri"],
          :from => msg["actor"]["id"],
          :to => []
      }
      params
    else
      logger.error("Invalid message format: #{msg}")
      nil
    end
  rescue => ex
    logger.error("Unable to fetch values from message #{msg}. Caught exception #{ex}")
    nil
  end
end

.format_voice_sms(message) ⇒ Object

Convert the inbound voice/sms event to a Message instance

Parameters

  • message raw JSON decoded message

Return

  • Array of one Connfu::Message instance

  • Empty array if the message is invalid



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# File 'lib/connfu/connfu_message_formatter.rb', line 109

def format_voice_sms(message)
  if message.is_a?(Array) and message.length.eql?(2)
    if Connfu::Message.is_voice?(message[0])
      logger.debug("Format the new voice message")
      conference_id = URI.parse(message[1]["conferenceId"]).host
      params = {
          :id => 1234,
          :content => message[1]["newTopic"],
          :from => message[1]["from"],
          :to => message[1]["to"],
          :message_type => message[0],
          :channel_type => "voice",
          :channel_name => conference_id
      }
      logger.debug(params)

      [Connfu::Message.new(params)]
    elsif Connfu::Message.is_sms?(message[0])
      logger.debug("Format the new sms message")
      params = {
          :id => 1234,
          :content => message[1]["message"],
          :from => message[1]["from"],
          :to => message[1]["to"],
          :message_type => "new",
          :channel_type => "sms",
          :channel_name => message[1]["appId"]
      }
      [Connfu::Message.new(params)]
    else
      logger.error("Unexpected message type")
      logger.error(message)
      []
    end
  else
    logger.error("Unexpected message format")
    logger.error(message)
    []
  end
end