Class: Mail

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
app/models/mail.rb

Overview

Receive a mail from which an elt is created.

An associated mail is kept to make sure we don’t lose any data. Attachments are also managed in an associated table

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.receive(mail) ⇒ Object

Receive this new elt as an email, sent through app/helpers/mailman.rb

TODO Loop detection, will need more work



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# File 'app/models/mail.rb', line 20

def Mail.receive(mail)
	logger.info "Receive \"#{mail.subject}\""

	if Mail.find_by_message(mail.message_id) \
		or (mail['X-Message-Id'] \
				and Mail.find_by_message(mail['X-Message-Id'].to_s))
		logger.info "Already received (id: #{mail.message_id})...\n"

	else
		Mail.new.receive mail
	end
end

Instance Method Details

#before_create ⇒ Object 



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# File 'app/models/mail.rb', line 33

def before_create
	# Let's generate a nice looking id
	self.id ||= new_id =
		message.gsub(/\[[\w-]*\]/, '').strip \
		.gsub(/\s/, '_').gsub(/[^\w]+/, '') \
		.gsub(/_+/, '_').gsub(/(^_|_$)/, '') if message
	self.id ||= "mail"

	i = 0
	self.id = "#{new_id}_#{i+=1}" while self.class.find_by_id self.id
end

#publish ⇒ Object

An elt needs to be published as a mail



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# File 'app/models/mail.rb', line 146

def publish
	logger.info "Publish mail for elt '#{elt.subject}' [#{elt.id}]"
	#puts "Publish mail for elt '#{elt.subject}' [#{elt.id}]"

	if message and not message.blank? and file
		mail = TMail::Mail.parse file
		# Let's reuse an eventual id if it is simply resent (for example after a vote)
		# TODO add a test
		mail.message_id = message
	else
		mail = MailNotify.create_publish elt
		self.mail_parents = mail.references
		self.file = mail.encoded
	end

	# Record all people to whom it was sent
	mail.bcc = elt.all_subscriptions \
		.select { |s| s.person.email and not s.person.email.blank? } \
		.select { |s| #puts "Person: #{s.person.name}, elt: #{s.elt.id}, filter: #{s.filter}";
			not s.filter or (elt.result and elt.result >= s.filter) } \
		.reject { |s| recipients.include? s.person } \
		.uniq \
		.each { |r| person_mails.build :person => r.person } \
		.collect { |i| i.person.email } \
		.uniq

	logger.info "Recipients: #{recipients}"
	#puts "mail.bcc: #{mail.bcc}"

	#
	# Redefine the recipients used when delivering the mail to the local smtp server
	#
	# In fact, only send the mail to the bcc recipients, the to and/or cc are
	# just here for information
	#
	def mail.destinations(default = nil)
		ret = []
		%w( bcc ).each do |nm|
			if h = @header[nm]
				h.addrs.each {|i| ret.push i.address }
			end
		end
		ret.empty? ? default : ret
	end

	# Added to make sure it is not lost, but not modified if already existant
	mail['X-Message-Id'] = mail.message_id if not mail['X-Message-Id']
	mail['Precedence'] = 'list'
	mail['X-Loop'] = ActionMailer::Base.smtp_settings[:domain]
	mail['Errors-To'] = "errors@"+ActionMailer::Base.smtp_settings[:domain]
	mail['List-Archive'] = "http://"+ActionMailer::Base.smtp_settings[:domain]
	mail['Parlement-elt-id'] = elt.id

	if mail.message_id
		# Let's not change the message id
		def mail.add_message_id
		end
	end

	MailNotify::deliver(mail) if mail.bcc and not mail.bcc.empty?

	# Do it after sending, to get the actual message id as generated by the MTA
	self.message = mail.message_id if not message or message.blank?

	logger.info "Published with id \"#{message}\""
end

#receive(mail) ⇒ Object

Receive a mail that will be stored as an elt.

The algorithm to define its parent is simple:

  • header “references”

  • or any subject between []

  • the “to” part before @#:domain

  • in a “mail/lost+found” thread



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# File 'app/models/mail.rb', line 59

def receive(mail)
	logger.info "Receive mail #{mail.message_id}"
	self.mail_parents = mail.references
	self.message = mail.message_id
	if mail.encoded.isutf8
		self.file = mail.encoded
	else
		charset = mail.type_param 'charset'
		charset ||= 'iso-8859-1'
		self.file = Iconv.iconv('utf-8', charset, mail.encoded).to_s
	end

	build_elt :created_on => mail.date,
		:subject => unquote(mail.subject),
		:body => '',
		:mail => self

	# Try to find its mail parent in the db
	if mail.in_reply_to and Mail.find_by_message mail.in_reply_to
		elt.parent_id = Mail.find_by_message(mail.in_reply_to).elt.id
	end

	# Try to find its mail parent in the db
	if not elt.parent and mail.references
		for parent in mail.references
			m = Mail.find_by_message parent.to_s
			elt.parent = m.elt if m
		end
	end

	begin
		# No reference matching an existing parent, let's try a mailing list we
		# deduce from an eventual [subject]
		if not elt.parent and elt.subject.match(/\[[\w-]*\]/)
			parentId = elt.subject.match(/\[[\w-]*\]/)
			parentId = parentId[0].gsub(/[\[\]]/, '') if parentId
			elt.parent = Elt.find parentId
		end

		# No reference matching an existing parent, let's try the "to" field
		to = mail["Envelope-to"].to_s + ', ' + mail.to.to_s
		if not elt.parent and to.match(/[\w-]*@#{ActionMailer::Base.smtp_settings[:domain]}/)
			parentId = to.match(/[\w-]*@#{ActionMailer::Base.smtp_settings[:domain]}/)[0] \
				.gsub(/@#{ActionMailer::Base.smtp_settings[:domain]}/, '')
			elt.parent = Elt.find parentId
		end

		if not elt.parent
			parentId = "lost+found"
			elt.parent = Elt.find parentId
		end

	rescue ActiveRecord::RecordNotFound
		logger.info "Creating a parent elt with id #{parentId}"
		#puts "Creating a parent elt with id #{parentId}"
		elt.build_parent :parent_id => 'mail', :subject => parentId, :body => ''
		elt.parent.publish
	end

	elt.save!
	mngAttachment mail if mail

	elt.person = Person.find_by_email(mail.from) \
		|| Person.find_by_name(unquote(mail.friendly_from)) \
		|| elt.build_person(:id =>  unquote(mail.friendly_from).gsub(/\s/, '_'),
												:name => unquote(mail.friendly_from),
												:email => mail.from.first
											 ) unless mail.from.first.match(/#{ANONYMOUS_POSTER}@#{ActionMailer::Base.smtp_settings[:domain]}/)

	elt.publish

	if mail.to.to_s.match(/people@#{ActionMailer::Base.smtp_settings[:domain]}/)
		elt.person.image = "/attachment/file/#{elt.attachments.first.file_relative_path}"
		elt.person.save
	end
	self
end