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=begin rdoc
= Attachment handling file
=end
require 'kconv'
require 'stringio'
module TMail
class Attachment < StringIO
attr_accessor :original_filename, :content_type
alias quoted_filename original_filename
end
class Mail
def has_attachments?
attachment?(self) || multipart? && parts.any? { |part| attachment?(part) }
end
# Returns true if this part's content main type is text, else returns false.
# By main type is meant "text/plain" is text. "text/html" is text
def text_content_type?
self.header['content-type'] && (self.header['content-type'].main_type == 'text')
end
def inline_attachment?(part)
part['content-id'] || (part['content-disposition'] && part['content-disposition'].disposition == 'inline' && !part.text_content_type?)
end
def attachment?(part)
part.disposition_is_attachment? || (!part.content_type.nil? && !part.text_content_type?) unless part.multipart?
end
def attachments
if multipart?
parts.collect { |part| attachment(part) }.flatten.compact
elsif attachment?(self)
[attachment(self)]
end
end
private
def attachment(part)
if part.multipart?
part.attachments
elsif attachment?(part)
content = part.body # unquoted automatically by TMail#body
file_name = (part['content-location'] && part['content-location'].body) ||
part.sub_header('content-type', 'name') ||
part.sub_header('content-disposition', 'filename') ||
'noname'
return if content.blank?
attachment = TMail::Attachment.new(content)
attachment.original_filename = file_name.strip unless file_name.blank?
attachment.content_type = part.content_type
attachment
end
end
end
end
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