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module ActionMailer
# Accessors and helpers that ActionMailer::Base and ActionMailer::Part have
# in common. Using these helpers you can easily add subparts or attachments
# to your message:
#
# def my_mail_message(...)
# ...
# part "text/plain" do |p|
# p.body "hello, world"
# p.transfer_encoding "base64"
# end
#
# attachment "image/jpg" do |a|
# a.body = File.read("hello.jpg")
# a.filename = "hello.jpg"
# end
# end
module PartContainer
# The list of subparts of this container
attr_reader :parts
# 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 parse_content_type(defaults=nil)
if content_type.blank?
return defaults ?
[ defaults.content_type, { 'charset' => defaults.charset } ] :
[ nil, {} ]
end
ctype, *attrs = content_type.split(/;\s*/)
attrs = attrs.inject({}) { |h,s| k,v = s.split(/=/, 2); h[k] = v; h }
[ctype, {"charset" => charset || defaults && defaults.charset}.merge(attrs)]
end
end
end
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