Class: Argosnap::Mailer

Inherits:
Object
  • Object
show all
Defined in:
lib/argosnap/notifications/mailer.rb

Overview

Send email notification to the user

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config, logger) ⇒ Mailer

Returns a new instance of Mailer.



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# File 'lib/argosnap/notifications/mailer.rb', line 12

def initialize(config, logger)
  @logger              = logger
  @smtpd_user          = config[:smtp][:smtpd_user]
  @smtpd_password      = config[:smtp][:smtpd_password]
  @smtpd_address       = config[:smtp][:smtpd_address]
  @smtpd_port          = config[:smtp][:smtpd_port]
  @smtpd_from          = config[:smtp][:smtpd_from]
  @smtpd_to            = config[:smtp][:smtpd_to]
  @method              = config[:smtp][:email_delivery_method]
  @format              = config[:smtp][:format]
  @balance             = Fetch.new.balance.to_s
end

Instance Attribute Details

#balance ⇒ Object (readonly)

Returns the value of attribute balance.



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# File 'lib/argosnap/notifications/mailer.rb', line 11

def balance
  @balance
end

#format ⇒ Object (readonly)

Returns the value of attribute format.



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# File 'lib/argosnap/notifications/mailer.rb', line 11

def format
  @format
end

#logger ⇒ Object (readonly)

Returns the value of attribute logger.



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# File 'lib/argosnap/notifications/mailer.rb', line 11

def logger
  @logger
end

#method ⇒ Object (readonly)

Returns the value of attribute method.



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# File 'lib/argosnap/notifications/mailer.rb', line 11

def method
  @method
end

#smtpd_address ⇒ Object (readonly)

Returns the value of attribute smtpd_address.



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# File 'lib/argosnap/notifications/mailer.rb', line 11

def smtpd_address
  @smtpd_address
end

#smtpd_from ⇒ Object (readonly)

Returns the value of attribute smtpd_from.



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# File 'lib/argosnap/notifications/mailer.rb', line 11

def smtpd_from
  @smtpd_from
end

#smtpd_password ⇒ Object (readonly)

Returns the value of attribute smtpd_password.



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# File 'lib/argosnap/notifications/mailer.rb', line 11

def smtpd_password
  @smtpd_password
end

#smtpd_port ⇒ Object (readonly)

Returns the value of attribute smtpd_port.



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# File 'lib/argosnap/notifications/mailer.rb', line 11

def smtpd_port
  @smtpd_port
end

#smtpd_to ⇒ Object (readonly)

Returns the value of attribute smtpd_to.



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# File 'lib/argosnap/notifications/mailer.rb', line 11

def smtpd_to
  @smtpd_to
end

#smtpd_user ⇒ Object (readonly)

Returns the value of attribute smtpd_user.



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# File 'lib/argosnap/notifications/mailer.rb', line 11

def smtpd_user
  @smtpd_user
end

Instance Method Details

#config ⇒ Object

load configuration files



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# File 'lib/argosnap/notifications/mailer.rb', line 7

def config 
  Configuration.new
end

#ensure_mail_configuration ⇒ Object 



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# File 'lib/argosnap/notifications/mailer.rb', line 25

def ensure_mail_configuration
  if smtpd_address.empty?
    config.log_and_abort("There is no 'smtpd_address' in #{config}. Please check your configuration file.")
  elsif smtpd_to.empty?
    config.log_and_abort("There is no 'smtpd_to' in #{config}. Please check your configuration file.")
  end
end

#send_mail ⇒ Object

send email. HTML format is the default.



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# File 'lib/argosnap/notifications/mailer.rb', line 57

def send_mail
  # ensure compatibility first
  Install.new.ensure_compatibility
  ensure_mail_configuration

  # create the 'mail' object
  mail           = Mail.new

  # configure mail options
  mail[:from]    =  smtpd_from
  mail[:to]      =  smtpd_to
  mail[:subject] = "ARGOSNAP: your tarsnap balance."

  # configure mail format: Use HTML if the user wants it, otherwise default to 'txt'
  if format == 'html'
    if config.gem_available?('haml')
      require 'haml'
      mail['content-type'] = 'text/html; charset=UTF-8'
      # convert HAML to HTML
      Haml::Engine.new(File.read(File.expand_path('../../../../files/mail.body.haml', __FILE__))).def_method(balance, :render)
      mail[:body] = balance.render
    else
      log.error("Please install haml gem to receive HTML emails: '$ gem install haml'")
      mail[:body] = text_message(balance)
    end
  else
    mail[:body] =  text_message(balance)
  end

  # SMTPd configuration. Defaults to local 'sendmail'
  if method == 'smtp'
    if smtpd_port == 465
      # use smtps with some defaults
      mail.delivery_method :smtp, address: smtpd_address, port: smtpd_port, user_name: smtpd_user, password: smtpd_password, ssl: true, openssl_verify_mode: 0
    else
      mail.delivery_method :smtp, address: smtpd_address, port: smtpd_port
    end
  end

  # dispatch email
  mail.deliver
  logger.info("Argosnap sent an email to #{smtpd_to}!")
  logger.info("Current amount in picoUSD: #{balance}")
end

#text_message(amount) ⇒ Object 



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# File 'lib/argosnap/notifications/mailer.rb', line 33

def text_message(amount)
  message = <<EOF

Hello

Your tarsnap account is running out of funds. Your current amount of picoUSD is #{amount}.

This automated email message was sent by argosnap. Please do not reply to this email.

Have a nice day!

argosnap
--

Argosnap: Receive notifications when your tarsnap account is running out of picoUSD!
URL:      https://github.com/atmosx/argosnap

EOF

  message
end