Class: EventMachine::Protocols::SmtpClient

Inherits:
Connection
  • Object
show all
Includes:
Deferrable, LineText2
Defined in:
lib/em/protocols/smtpclient.rb

Overview

Simple SMTP client

Sending generated emails (using mailfactory)

mail = MailFactory.new mail.to = '[email protected]' mail.from = '[email protected]' mail.subject = 'hi!' mail.text = 'hello world' mail.html = '

hello world

'

email = EM::P::SmtpClient.send( :domain=>'site.com', :from=>mail.from, :to=>mail.to, :content=>"#mailmail.to_s\r\n.\r\n" )

Examples:

email = EM::Protocols::SmtpClient.send(
  :domain=>"example.com",
  :host=>'localhost',
  :port=>25, # optional, defaults 25
  :starttls=>true, # use ssl
  :from=>"[email protected]",
  :to=> ["[email protected]", "[email protected]"],
  :header=> {"Subject" => "This is a subject line"},
  :body=> "This is the body of the email"
)
email.callback{
  puts 'Email sent!'
}
email.errback{ |e|
  puts 'Email failed!'
}

Constant Summary

Constants included from LineText2

LineText2::MaxBinaryLength

Constants included from Deferrable

Deferrable::Pool

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from LineText2

#receive_binary_data, #receive_data, #receive_end_of_binary_data, #set_binary_mode, #set_delimiter, #set_line_mode, #set_text_mode

Methods included from Deferrable

#callback, #cancel_callback, #cancel_errback, #cancel_timeout, #errback, #fail, future, #set_deferred_status, #succeed, #timeout

Methods inherited from Connection

#close_connection, #close_connection_after_writing, #comm_inactivity_timeout, #comm_inactivity_timeout=, #detach, #error?, #get_idle_time, #get_peer_cert, #get_peername, #get_pid, #get_proxied_bytes, #get_sock_opt, #get_sockname, #get_status, #notify_readable=, #notify_readable?, #notify_writable=, #notify_writable?, #pause, #paused?, #pending_connect_timeout, #pending_connect_timeout=, #proxy_completed, #proxy_incoming_to, #proxy_target_unbound, #receive_data, #reconnect, #resume, #send_data, #send_datagram, #send_file_data, #set_sock_opt, #ssl_handshake_completed, #ssl_verify_peer, #start_tls, #stop_proxying, #stream_file_data

Constructor Details

#initialize ⇒ SmtpClient

Returns a new instance of SmtpClient.



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# File 'lib/em/protocols/smtpclient.rb', line 71

def initialize
  @succeeded = nil
  @responder = nil
  @code = nil
  @msg = nil
end

Instance Attribute Details

#args=(value) ⇒ Object (writeonly)

Sets the attribute args

Parameters:

  • value —

    the value to set the attribute args to.



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# File 'lib/em/protocols/smtpclient.rb', line 165

def args=(value)
  @args = value
end

Class Method Details

.send(args = {}) ⇒ Object

:host => required String a string containing the IP address or host name of the SMTP server to connect to. :port => optional defaults to 25. :domain => required String This is passed as the argument to the EHLO command. :starttls => optional Boolean If it evaluates true, then the client will initiate STARTTLS with the server, and abort the connection if the negotiation doesn't succeed. TODO, need to be able to pass certificate parameters with this option. :auth => optional Hash of auth parameters If not given, then no auth will be attempted. (In that case, the connection will be aborted if the server requires auth.) Specify the hash value :type to determine the auth type, along with additional parameters depending on the type. Currently only :type => :plain is supported. Pass additional parameters :username (String), and :password (either a String or a Proc that will be called at auth-time).

@example :auth => :username=>"[email protected]", :password=>"mouse"

:from => required String Specifies the sender of the message. Will be passed as the argument to the MAIL FROM. Do NOT enclose the argument in angle-bracket (<>) characters. The connection will abort if the server rejects the value. :to => required String or Array of Strings The recipient(s) of the message. Do NOT enclose any of the values in angle-brackets (<>) characters. It's NOT a fatal error if one or more recipients are rejected by the server. (Of course, if ALL of them are, the server will most likely trigger an error when we try to send data.) An array of codes containing the status of each requested recipient is available after the call completes. TODO, we should define an overridable stub that will be called on rejection of a recipient or a sender, giving user code the chance to try again or abort the connection. :header => Required hash of values to be transmitted in the header of the message. The hash keys are the names of the headers (do NOT append a trailing colon), and the values are strings containing the header values. TODO, support Arrays of header values, which would cause us to send that specific header line more than once.

@example :header => => "Bogus", "CC" => "[email protected]"

:body => Optional string, defaults blank. This will be passed as the body of the email message. TODO, this needs to be significantly beefed up. As currently written, this requires the caller to properly format the input into CRLF-delimited lines of 7-bit characters in the standard SMTP transmission format. We need to be able to automatically convert binary data, and add correct line-breaks to text data. I think the :body parameter should remain as it is, and we should add a :content parameter that contains autoconversions and/or conversion parameters. Then we can check if either :body or :content is present and do the right thing. :content => Optional array or string Alternative to providing header and body, an array or string of raw data which MUST be in correct SMTP body format, including a trailing dot line :verbose => Optional. If true, will cause a lot of information (including the server-side of the conversation) to be dumped to $>.



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# File 'lib/em/protocols/smtpclient.rb', line 134

def self.send args={}
  args[:port] ||= 25
  args[:body] ||= ""

=begin
(I don't think it's possible for EM#connect to throw an exception under normal
circumstances, so this original code is stubbed out. A connect-failure will result
in the #unbind method being called without calling #connection_completed.)
begin
  EventMachine.connect( args[:host], args[:port], self) {|c|
    # According to the EM docs, we will get here AFTER post_init is called.
    c.args = args
    c.set_comm_inactivity_timeout 60
  }
rescue
  # We'll get here on a connect error. This code mimics the effect
  # of a call to invoke_internal_error. Would be great to DRY this up.
  # (Actually, it may be that we never get here, if EM#connect catches
  # its errors internally.)
  d = EM::DefaultDeferrable.new
  d.set_deferred_status(:failed, {:error=>[:connect, 500, "unable to connect to server"]})
  d
end
=end
  EventMachine.connect( args[:host], args[:port], self) {|c|
    # According to the EM docs, we will get here AFTER post_init is called.
    c.args = args
    c.set_comm_inactivity_timeout 60
  }
end