canvas-lms/lib/incoming_mail/imap_mailbox.rb

78 lines
2.2 KiB
Ruby

#
# Copyright (C) 2013 Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
require 'net/imap'
require File.expand_path('../configurable_timeout', __FILE__)
module IncomingMail
class ImapMailbox
include ConfigurableTimeout
UsedImapMethods = [:login, :logout, :disconnect, :select, :search, :fetch, :expunge, :store, :list, :create, :copy]
attr_accessor :server, :port, :ssl, :username, :password, :folder, :filter
def initialize(options = {})
@server = options.fetch(:server, "")
@port = options.fetch(:port, 993)
@ssl = options.fetch(:ssl, true)
@username = options.fetch(:username, "")
@password = options.fetch(:password, "")
@folder = options.fetch(:folder, "INBOX")
@filter = Array(options.fetch(:filter, "ALL"))
end
def connect
@imap = with_timeout { Net::IMAP.new(@server, :port => @port, :ssl => @ssl) }
wrap_with_timeout(@imap, UsedImapMethods)
@imap.login(@username, @password)
end
def disconnect
@imap.logout
@imap.disconnect
rescue
end
def each_message
@imap.select(@folder)
@imap.search(@filter).each do |message_id|
body = @imap.fetch(message_id, "RFC822")[0].attr["RFC822"]
yield message_id, body
end
@imap.expunge
end
def delete_message(message_id)
@imap.store(message_id, "+FLAGS", Net::IMAP::DELETED)
end
def move_message(message_id, target_folder)
existing = @imap.list("", target_folder)
if !existing || existing.empty?
@imap.create(target_folder)
end
@imap.copy(message_id, target_folder)
delete_message(message_id)
end
end
end