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require 'action_mailer/adv_attr_accessor'
require 'action_mailer/part'
require 'tmail/net'
module ActionMailer #:nodoc:
# Usage:
#
# class ApplicationMailer < ActionMailer::Base
# # Set up properties
# # (Properties can also be specified via accessor methods
# # i.e. self.subject = "foo") and instance variables (@subject = "foo").
# def signup_notification(recipient)
# recipients recipient.email_address_with_name
# subject "New account information"
# body Hash.new("account" => recipient)
# from "system@example.com"
# end
#
# # explicitly specify multipart messages
# def signup_notification(recipient)
# recipients recipient.email_address_with_name
# subject "New account information"
# from "system@example.com"
#
# part :content_type => "text/html",
# :body => render_message("signup-as-html", :account => recipient)
#
# part "text/plain" do |p|
# p.body = render_message("signup-as-plain", :account => recipient)
# p.transfer_encoding = "base64"
# end
# end
#
# # attachments
# def signup_notification(recipient)
# recipients recipient.email_address_with_name
# subject "New account information"
# from "system@example.com"
#
# attachment :content_type => "image/jpeg",
# :body => File.read("an-image.jpg")
#
# attachment "application/pdf" do |a|
# a.body = generate_your_pdf_here()
# end
# end
#
# # implicitly multipart messages
# def signup_notification(recipient)
# recipients recipient.email_address_with_name
# subject "New account information"
# from "system@example.com"
# body(:account => "recipient")
#
# # ActionMailer will automatically detect and use multipart templates,
# # where each template is named after the name of the action, followed
# # by the content type. Each such detected template will be added as
# # a separate part to the message.
# #
# # for example, if the following templates existed:
# # * signup_notification.text.plain.rhtml
# # * signup_notification.text.html.rhtml
# # * signup_notification.text.xml.rxml
# # * signup_notification.text.x-yaml.rhtml
# #
# # Each would be rendered and added as a separate part to the message,
# # with the corresponding content type. The same body hash is passed to
# # each template.
# end
# end
#
# # After this post_notification will look for "templates/application_mailer/post_notification.rhtml"
# ApplicationMailer.template_root = "templates"
#
# ApplicationMailer.create_comment_notification(david, hello_world) # => a tmail object
# ApplicationMailer.deliver_comment_notification(david, hello_world) # sends the email
#
# = Configuration options
#
# These options are specified on the class level, like <tt>ActionMailer::Base.template_root = "/my/templates"</tt>
#
# * <tt>template_root</tt> - template root determines the base from which template references will be made.
#
# * <tt>logger</tt> - the logger is used for generating information on the mailing run if available.
# Can be set to nil for no logging. Compatible with both Ruby's own Logger and Log4r loggers.
#
# * <tt>server_settings</tt> - Allows detailed configuration of the server:
# * <tt>:address</tt> Allows you to use a remote mail server. Just change it away from it's default "localhost" setting.
# * <tt>:port</tt> On the off change that your mail server doesn't run on port 25, you can change it.
# * <tt>:domain</tt> If you need to specify a HELO domain, you can do it here.
# * <tt>:user_name</tt> If your mail server requires authentication, set the username and password in these two settings.
# * <tt>:password</tt> If your mail server requires authentication, set the username and password in these two settings.
# * <tt>:authentication</tt> If your mail server requires authentication, you need to specify the authentication type here.
# This is a symbol and one of :plain, :login, :cram_md5
#
# * <tt>raise_delivery_errors</tt> - whether or not errors should be raised if the email fails to be delivered.
#
# * <tt>delivery_method</tt> - Defines a delivery method. Possible values are :smtp (default), :sendmail, and :test.
# Sendmail is assumed to be present at "/usr/sbin/sendmail".
#
# * <tt>perform_deliveries</tt> - Determines whether deliver_* methods are actually carried out. By default they are,
# but this can be turned off to help functional testing.
#
# * <tt>deliveries</tt> - Keeps an array of all the emails sent out through the Action Mailer with delivery_method :test. Most useful
# for unit and functional testing.
#
# * <tt>default_charset</tt> - The default charset used for the body and to encode the subject. Defaults to UTF-8. You can also
# pick a different charset from inside a method with <tt>@charset</tt>.
class Base
include ActionMailer::AdvAttrAccessor
private_class_method :new #:nodoc:
cattr_accessor :template_root
cattr_accessor :logger
@@server_settings = {
:address => "localhost",
:port => 25,
:domain => 'localhost.localdomain',
:user_name => nil,
:password => nil,
:authentication => nil
}
cattr_accessor :server_settings
@@raise_delivery_errors = true
cattr_accessor :raise_delivery_errors
@@delivery_method = :smtp
cattr_accessor :delivery_method
@@perform_deliveries = true
cattr_accessor :perform_deliveries
@@deliveries = []
cattr_accessor :deliveries
@@default_charset = "utf-8"
cattr_accessor :default_charset
@@default_content_type = "text/plain"
cattr_accessor :default_content_type
adv_attr_accessor :recipients, :subject, :body, :from, :sent_on, :headers,
:bcc, :cc, :charset, :content_type, :template
attr_reader :mail
# Instantiate a new mailer object. If +method_name+ is not +nil+, the mailer
# will be initialized according to the named method. If not, the mailer will
# remain uninitialized (useful when you only need to invoke the "receive"
# method, for instance).
def initialize(method_name=nil, *parameters)
create!(method_name, *parameters) if method_name
end
# Initialize the mailer via the given +method_name+. The body will be
# rendered and a new TMail::Mail object created.
def create!(method_name, *parameters)
@bcc = @cc = @from = @recipients = @sent_on = @subject = nil
@charset = @@default_charset.dup
@content_type = @@default_content_type.dup
@template = method_name
@parts = []
@headers = {}
@body = {}
send(method_name, *parameters)
# If an explicit, textual body has not been set, we check assumptions.
unless String === @body
# First, we look to see if there are any likely templates that match,
# which include the content-type in their file name (i.e.,
# "the_template_file.text.html.rhtml", etc.).
if @parts.empty?
templates = Dir.glob("#{template_path}/#{@template}.*")
templates.each do |path|
type = (File.basename(path).split(".")[1..-2] || []).join("/")
next if type.empty?
@parts << Part.new(:content_type => type,
:disposition => "inline", :charset => charset,
:body => render_message(File.basename(path).split(".")[0..-2].join('.'), @body))
end
end
# Then, if there were such templates, we check to see if we ought to
# also render a "normal" template (without the content type). If a
# normal template exists (or if there were no implicit parts) we render
# it.
template_exists = @parts.empty?
template_exists ||= Dir.glob("#{template_path}/#{@template}.*").any? { |i| i.split(".").length == 2 }
@body = render_message(@template, @body) if template_exists
# Finally, if there are other message parts and a textual body exists,
# we shift it onto the front of the parts and set the body to nil (so
# that create_mail doesn't try to render it in addition to the parts).
if !@parts.empty? && String === @body
@parts.unshift Part.new(:charset => charset, :body => @body)
@body = nil
end
end
# build the mail object itself
@mail = create_mail
end
# Delivers the cached TMail::Mail object. If no TMail::Mail object has been
# created (via the #create! method, for instance) this will fail.
def deliver!
raise "no mail object available for delivery!" unless @mail
logger.info "Sent mail:\n #{mail.encoded}" unless logger.nil?
begin
send("perform_delivery_#{delivery_method}", @mail) if perform_deliveries
rescue Object => e
raise e if raise_delivery_errors
end
return @mail
end
# Add a part to a multipart message, with the given content-type. The
# part itself is yielded to the block, so that other properties (charset,
# body, headers, etc.) can be set on it.
def part(params)
params = {:content_type => params} if String === params
part = Part.new(params)
yield part if block_given?
@parts << part
end
# Add an attachment to a multipart message. This is simply a part with the
# content-disposition set to "attachment".
def attachment(params, &block)
params = { :content_type => params } if String === params
params = { :disposition => "attachment",
:transfer_encoding => "base64" }.merge(params)
part(params, &block)
end
private
def render_message(method_name, body)
initialize_template_class(body).render_file(method_name)
end
def template_path
template_root + "/" + Inflector.underscore(self.class.name)
end
def initialize_template_class(assigns)
ActionView::Base.new(template_path, assigns, self)
end
def create_mail
m = TMail::Mail.new
m.subject, = quote_any_if_necessary(charset, subject)
m.to, m.from = quote_any_address_if_necessary(charset, recipients, from)
m.bcc = quote_address_if_necessary(bcc, charset) unless bcc.nil?
m.cc = quote_address_if_necessary(cc, charset) unless cc.nil?
m.date = sent_on.to_time rescue sent_on if sent_on
headers.each { |k, v| m[k] = v }
if @parts.empty?
m.set_content_type content_type, nil, { "charset" => charset }
m.body = body
else
if String === body
part = TMail::Mail.new
part.body = body
part.set_content_type content_type, nil, { "charset" => charset }
part.set_content_disposition "inline"
m.parts << part
end
@parts.each do |p|
part = (TMail::Mail === p ? p : p.to_mail(self))
m.parts << part
end
m.set_content_type(content_type, nil, { "charset" => charset }) if content_type =~ /multipart/
end
@mail = m
end
def perform_delivery_smtp(mail)
destinations = mail.destinations
mail.ready_to_send
Net::SMTP.start(server_settings[:address], server_settings[:port], server_settings[:domain],
server_settings[:user_name], server_settings[:password], server_settings[:authentication]) do |smtp|
smtp.sendmail(mail.encoded, mail.from, destinations)
end
end
def perform_delivery_sendmail(mail)
IO.popen("/usr/sbin/sendmail -i -t","w+") do |sm|
sm.print(mail.encoded)
sm.flush
end
end
def perform_delivery_test(mail)
deliveries << mail
end
class << self
def method_missing(method_symbol, *parameters)#:nodoc:
case method_symbol.id2name
when /^create_([_a-z]\w*)/ then new($1, *parameters).mail
when /^deliver_([_a-z]\w*)/ then new($1, *parameters).deliver!
when "new" then nil
else super
end
end
def receive(raw_email)
logger.info "Received mail:\n #{raw_email}" unless logger.nil?
mail = TMail::Mail.parse(raw_email)
mail.base64_decode
new.receive(mail)
end
end
end
end
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