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# Redmine - project management software
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# Copyright (C) 2006-2016 Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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class MailHandler < ActionMailer::Base
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include ActionView::Helpers::SanitizeHelper
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include Redmine::I18n
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class UnauthorizedAction < StandardError; end
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class MissingInformation < StandardError; end
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attr_reader :email, :user, :handler_options
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def self.receive(raw_mail, options={})
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options = options.deep_dup
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options[:issue] ||= {}
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options[:allow_override] ||= []
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if options[:allow_override].is_a?(String)
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options[:allow_override] = options[:allow_override].split(',')
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end
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options[:allow_override].map! {|s| s.strip.downcase.gsub(/\s+/, '_')}
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# Project needs to be overridable if not specified
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options[:allow_override] << 'project' unless options[:issue].has_key?(:project)
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options[:no_account_notice] = (options[:no_account_notice].to_s == '1')
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options[:no_notification] = (options[:no_notification].to_s == '1')
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options[:no_permission_check] = (options[:no_permission_check].to_s == '1')
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raw_mail.force_encoding('ASCII-8BIT')
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ActiveSupport::Notifications.instrument("receive.action_mailer") do |payload|
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mail = Mail.new(raw_mail)
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set_payload_for_mail(payload, mail)
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new.receive(mail, options)
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end
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end
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# Receives an email and rescues any exception
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def self.safe_receive(*args)
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receive(*args)
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rescue Exception => e
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logger.error "MailHandler: an unexpected error occurred when receiving email: #{e.message}" if logger
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return false
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end
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# Extracts MailHandler options from environment variables
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# Use when receiving emails with rake tasks
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def self.extract_options_from_env(env)
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options = {:issue => {}}
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%w(project status tracker category priority fixed_version).each do |option|
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options[:issue][option.to_sym] = env[option] if env[option]
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end
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%w(allow_override unknown_user no_permission_check no_account_notice default_group project_from_subaddress).each do |option|
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options[option.to_sym] = env[option] if env[option]
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end
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if env['private']
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options[:issue][:is_private] = '1'
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end
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options
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end
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def logger
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Rails.logger
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end
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cattr_accessor :ignored_emails_headers
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self.ignored_emails_headers = {
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'Auto-Submitted' => /\Aauto-(replied|generated)/,
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'X-Autoreply' => 'yes'
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}
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# Processes incoming emails
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# Returns the created object (eg. an issue, a message) or false
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def receive(email, options={})
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@email = email
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@handler_options = options
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sender_email = email.from.to_a.first.to_s.strip
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# Ignore emails received from the application emission address to avoid hell cycles
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if sender_email.casecmp(Setting.mail_from.to_s.strip) == 0
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if logger
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logger.info "MailHandler: ignoring email from Redmine emission address [#{sender_email}]"
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end
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return false
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end
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# Ignore auto generated emails
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self.class.ignored_emails_headers.each do |key, ignored_value|
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value = email.header[key]
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if value
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value = value.to_s.downcase
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if (ignored_value.is_a?(Regexp) && value.match(ignored_value)) || value == ignored_value
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if logger
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logger.info "MailHandler: ignoring email with #{key}:#{value} header"
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end
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return false
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end
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end
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end
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@user = User.find_by_mail(sender_email) if sender_email.present?
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if @user && !@user.active?
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if logger
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logger.info "MailHandler: ignoring email from non-active user [#{@user.login}]"
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end
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return false
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end
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if @user.nil?
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# Email was submitted by an unknown user
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case handler_options[:unknown_user]
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when 'accept'
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@user = User.anonymous
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when 'create'
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@user = create_user_from_email
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if @user
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if logger
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logger.info "MailHandler: [#{@user.login}] account created"
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end
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add_user_to_group(handler_options[:default_group])
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unless handler_options[:no_account_notice]
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Mailer.account_information(@user, @user.password).deliver
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end
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else
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if logger
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logger.error "MailHandler: could not create account for [#{sender_email}]"
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end
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return false
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end
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else
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# Default behaviour, emails from unknown users are ignored
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if logger
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logger.info "MailHandler: ignoring email from unknown user [#{sender_email}]"
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end
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return false
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end
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end
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User.current = @user
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dispatch
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end
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private
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MESSAGE_ID_RE = %r{^<?redmine\.([a-z0-9_]+)\-(\d+)\.\d+(\.[a-f0-9]+)?@}
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ISSUE_REPLY_SUBJECT_RE = %r{\[(?:[^\]]*\s+)?#(\d+)\]}
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MESSAGE_REPLY_SUBJECT_RE = %r{\[[^\]]*msg(\d+)\]}
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def dispatch
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headers = [email.in_reply_to, email.references].flatten.compact
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subject = email.subject.to_s
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if headers.detect {|h| h.to_s =~ MESSAGE_ID_RE}
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klass, object_id = $1, $2.to_i
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method_name = "receive_#{klass}_reply"
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if self.class.private_instance_methods.collect(&:to_s).include?(method_name)
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send method_name, object_id
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else
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# ignoring it
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end
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elsif m = subject.match(ISSUE_REPLY_SUBJECT_RE)
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receive_issue_reply(m[1].to_i)
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elsif m = subject.match(MESSAGE_REPLY_SUBJECT_RE)
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receive_message_reply(m[1].to_i)
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else
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dispatch_to_default
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end
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rescue ActiveRecord::RecordInvalid => e
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# TODO: send a email to the user
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logger.error "MailHandler: #{e.message}" if logger
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false
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rescue MissingInformation => e
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logger.error "MailHandler: missing information from #{user}: #{e.message}" if logger
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false
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rescue UnauthorizedAction => e
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logger.error "MailHandler: unauthorized attempt from #{user}" if logger
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false
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end
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def dispatch_to_default
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receive_issue
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end
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# Creates a new issue
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def receive_issue
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project = target_project
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# check permission
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unless handler_options[:no_permission_check]
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raise UnauthorizedAction unless user.allowed_to?(:add_issues, project)
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end
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issue = Issue.new(:author => user, :project => project)
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attributes = issue_attributes_from_keywords(issue)
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if handler_options[:no_permission_check]
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issue.tracker_id = attributes['tracker_id']
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if project
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issue.tracker_id ||= project.trackers.first.try(:id)
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end
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end
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issue.safe_attributes = attributes
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issue.safe_attributes = {'custom_field_values' => custom_field_values_from_keywords(issue)}
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issue.subject = cleaned_up_subject
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if issue.subject.blank?
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issue.subject = '(no subject)'
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end
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issue.description = cleaned_up_text_body
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issue.start_date ||= User.current.today if Setting.default_issue_start_date_to_creation_date?
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issue.is_private = (handler_options[:issue][:is_private] == '1')
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# add To and Cc as watchers before saving so the watchers can reply to Redmine
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add_watchers(issue)
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issue.save!
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add_attachments(issue)
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logger.info "MailHandler: issue ##{issue.id} created by #{user}" if logger
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issue
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end
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# Adds a note to an existing issue
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def receive_issue_reply(issue_id, from_journal=nil)
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issue = Issue.find_by_id(issue_id)
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return unless issue
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# check permission
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unless handler_options[:no_permission_check]
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unless user.allowed_to?(:add_issue_notes, issue.project) ||
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user.allowed_to?(:edit_issues, issue.project)
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raise UnauthorizedAction
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end
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end
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# ignore CLI-supplied defaults for new issues
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handler_options[:issue].clear
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journal = issue.init_journal(user)
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if from_journal && from_journal.private_notes?
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# If the received email was a reply to a private note, make the added note private
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issue.private_notes = true
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end
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issue.safe_attributes = issue_attributes_from_keywords(issue)
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issue.safe_attributes = {'custom_field_values' => custom_field_values_from_keywords(issue)}
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journal.notes = cleaned_up_text_body
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# add To and Cc as watchers before saving so the watchers can reply to Redmine
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add_watchers(issue)
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add_attachments(issue)
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issue.save!
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if logger
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logger.info "MailHandler: issue ##{issue.id} updated by #{user}"
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end
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journal
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end
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# Reply will be added to the issue
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def receive_journal_reply(journal_id)
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journal = Journal.find_by_id(journal_id)
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if journal && journal.journalized_type == 'Issue'
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receive_issue_reply(journal.journalized_id, journal)
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end
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end
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# Receives a reply to a forum message
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def receive_message_reply(message_id)
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message = Message.find_by_id(message_id)
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if message
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message = message.root
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unless handler_options[:no_permission_check]
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raise UnauthorizedAction unless user.allowed_to?(:add_messages, message.project)
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end
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if !message.locked?
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reply = Message.new(:subject => cleaned_up_subject.gsub(%r{^.*msg\d+\]}, '').strip,
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:content => cleaned_up_text_body)
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reply.author = user
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reply.board = message.board
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message.children << reply
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add_attachments(reply)
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reply
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else
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if logger
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logger.info "MailHandler: ignoring reply from [#{sender_email}] to a locked topic"
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end
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end
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end
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end
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def add_attachments(obj)
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if email.attachments && email.attachments.any?
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email.attachments.each do |attachment|
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next unless accept_attachment?(attachment)
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obj.attachments << Attachment.create(:container => obj,
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:file => attachment.body.decoded,
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:filename => attachment.filename,
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:author => user,
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:content_type => attachment.mime_type)
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end
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end
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end
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# Returns false if the +attachment+ of the incoming email should be ignored
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def accept_attachment?(attachment)
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@excluded ||= Setting.mail_handler_excluded_filenames.to_s.split(',').map(&:strip).reject(&:blank?)
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@excluded.each do |pattern|
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regexp = %r{\A#{Regexp.escape(pattern).gsub("\\*", ".*")}\z}i
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if attachment.filename.to_s =~ regexp
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logger.info "MailHandler: ignoring attachment #{attachment.filename} matching #{pattern}"
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return false
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end
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end
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true
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end
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# Adds To and Cc as watchers of the given object if the sender has the
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# appropriate permission
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def add_watchers(obj)
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if handler_options[:no_permission_check] || user.allowed_to?("add_#{obj.class.name.underscore}_watchers".to_sym, obj.project)
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addresses = [email.to, email.cc].flatten.compact.uniq.collect {|a| a.strip.downcase}
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unless addresses.empty?
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users = User.active.having_mail(addresses).to_a
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users -= obj.watcher_users
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users.each do |u|
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obj.add_watcher(u)
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end
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end
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end
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end
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def get_keyword(attr, options={})
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@keywords ||= {}
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if @keywords.has_key?(attr)
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@keywords[attr]
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else
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@keywords[attr] = begin
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override = options.key?(:override) ?
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options[:override] :
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(handler_options[:allow_override] & [attr.to_s.downcase.gsub(/\s+/, '_'), 'all']).present?
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if override && (v = extract_keyword!(cleaned_up_text_body, attr, options[:format]))
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v
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elsif !handler_options[:issue][attr].blank?
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handler_options[:issue][attr]
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end
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end
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end
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end
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# Destructively extracts the value for +attr+ in +text+
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# Returns nil if no matching keyword found
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def extract_keyword!(text, attr, format=nil)
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keys = [attr.to_s.humanize]
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if attr.is_a?(Symbol)
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if user && user.language.present?
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keys << l("field_#{attr}", :default => '', :locale => user.language)
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end
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if Setting.default_language.present?
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keys << l("field_#{attr}", :default => '', :locale => Setting.default_language)
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end
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end
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keys.reject! {|k| k.blank?}
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keys.collect! {|k| Regexp.escape(k)}
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format ||= '.+'
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keyword = nil
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regexp = /^(#{keys.join('|')})[ \t]*:[ \t]*(#{format})\s*$/i
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if m = text.match(regexp)
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keyword = m[2].strip
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text.sub!(regexp, '')
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end
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keyword
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end
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def get_project_from_receiver_addresses
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local, domain = handler_options[:project_from_subaddress].to_s.split("@")
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return nil unless local && domain
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local = Regexp.escape(local)
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[:to, :cc, :bcc].each do |field|
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header = @email[field]
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next if header.blank? || header.field.blank? || !header.field.respond_to?(:addrs)
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header.field.addrs.each do |addr|
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if addr.domain.to_s.casecmp(domain)==0 && addr.local.to_s =~ /\A#{local}\+([^+]+)\z/
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if project = Project.find_by_identifier($1)
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return project
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end
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end
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end
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end
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nil
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end
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def target_project
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# TODO: other ways to specify project:
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# * parse the email To field
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# * specific project (eg. Setting.mail_handler_target_project)
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target = get_project_from_receiver_addresses
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target ||= Project.find_by_identifier(get_keyword(:project))
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if target.nil?
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# Invalid project keyword, use the project specified as the default one
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default_project = handler_options[:issue][:project]
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if default_project.present?
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target = Project.find_by_identifier(default_project)
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end
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end
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raise MissingInformation.new('Unable to determine target project') if target.nil?
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target
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end
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# Returns a Hash of issue attributes extracted from keywords in the email body
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def issue_attributes_from_keywords(issue)
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attrs = {
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'tracker_id' => (k = get_keyword(:tracker)) && issue.project.trackers.named(k).first.try(:id),
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'status_id' => (k = get_keyword(:status)) && IssueStatus.named(k).first.try(:id),
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'priority_id' => (k = get_keyword(:priority)) && IssuePriority.named(k).first.try(:id),
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'category_id' => (k = get_keyword(:category)) && issue.project.issue_categories.named(k).first.try(:id),
|
|
|
'assigned_to_id' => (k = get_keyword(:assigned_to)) && find_assignee_from_keyword(k, issue).try(:id),
|
|
|
'fixed_version_id' => (k = get_keyword(:fixed_version)) && issue.project.shared_versions.named(k).first.try(:id),
|
|
|
'start_date' => get_keyword(:start_date, :format => '\d{4}-\d{2}-\d{2}'),
|
|
|
'due_date' => get_keyword(:due_date, :format => '\d{4}-\d{2}-\d{2}'),
|
|
|
'estimated_hours' => get_keyword(:estimated_hours),
|
|
|
'done_ratio' => get_keyword(:done_ratio, :format => '(\d|10)?0')
|
|
|
}.delete_if {|k, v| v.blank? }
|
|
|
|
|
|
attrs
|
|
|
end
|
|
|
|
|
|
# Returns a Hash of issue custom field values extracted from keywords in the email body
|
|
|
def custom_field_values_from_keywords(customized)
|
|
|
customized.custom_field_values.inject({}) do |h, v|
|
|
|
if keyword = get_keyword(v.custom_field.name)
|
|
|
h[v.custom_field.id.to_s] = v.custom_field.value_from_keyword(keyword, customized)
|
|
|
end
|
|
|
h
|
|
|
end
|
|
|
end
|
|
|
|
|
|
# Returns the text/plain part of the email
|
|
|
# If not found (eg. HTML-only email), returns the body with tags removed
|
|
|
def plain_text_body
|
|
|
return @plain_text_body unless @plain_text_body.nil?
|
|
|
|
|
|
parts = if (text_parts = email.all_parts.select {|p| p.mime_type == 'text/plain'}).present?
|
|
|
text_parts
|
|
|
elsif (html_parts = email.all_parts.select {|p| p.mime_type == 'text/html'}).present?
|
|
|
html_parts
|
|
|
else
|
|
|
[email]
|
|
|
end
|
|
|
|
|
|
parts.reject! do |part|
|
|
|
part.attachment?
|
|
|
end
|
|
|
|
|
|
@plain_text_body = parts.map do |p|
|
|
|
body_charset = Mail::RubyVer.respond_to?(:pick_encoding) ?
|
|
|
Mail::RubyVer.pick_encoding(p.charset).to_s : p.charset
|
|
|
|
|
|
body = Redmine::CodesetUtil.to_utf8(p.body.decoded, body_charset)
|
|
|
# convert html parts to text
|
|
|
p.mime_type == 'text/html' ? self.class.html_body_to_text(body) : self.class.plain_text_body_to_text(body)
|
|
|
end.join("\r\n")
|
|
|
|
|
|
@plain_text_body
|
|
|
end
|
|
|
|
|
|
def cleaned_up_text_body
|
|
|
@cleaned_up_text_body ||= cleanup_body(plain_text_body)
|
|
|
end
|
|
|
|
|
|
def cleaned_up_subject
|
|
|
subject = email.subject.to_s
|
|
|
subject.strip[0,255]
|
|
|
end
|
|
|
|
|
|
# Converts a HTML email body to text
|
|
|
def self.html_body_to_text(html)
|
|
|
Redmine::WikiFormatting.html_parser.to_text(html)
|
|
|
end
|
|
|
|
|
|
# Converts a plain/text email body to text
|
|
|
def self.plain_text_body_to_text(text)
|
|
|
# Removes leading spaces that would cause the line to be rendered as
|
|
|
# preformatted text with textile
|
|
|
text.gsub(/^ +(?![*#])/, '')
|
|
|
end
|
|
|
|
|
|
def self.assign_string_attribute_with_limit(object, attribute, value, limit=nil)
|
|
|
limit ||= object.class.columns_hash[attribute.to_s].limit || 255
|
|
|
value = value.to_s.slice(0, limit)
|
|
|
object.send("#{attribute}=", value)
|
|
|
end
|
|
|
|
|
|
# Returns a User from an email address and a full name
|
|
|
def self.new_user_from_attributes(email_address, fullname=nil)
|
|
|
user = User.new
|
|
|
|
|
|
# Truncating the email address would result in an invalid format
|
|
|
user.mail = email_address
|
|
|
assign_string_attribute_with_limit(user, 'login', email_address, User::LOGIN_LENGTH_LIMIT)
|
|
|
|
|
|
names = fullname.blank? ? email_address.gsub(/@.*$/, '').split('.') : fullname.split
|
|
|
assign_string_attribute_with_limit(user, 'firstname', names.shift, 30)
|
|
|
assign_string_attribute_with_limit(user, 'lastname', names.join(' '), 30)
|
|
|
user.lastname = '-' if user.lastname.blank?
|
|
|
user.language = Setting.default_language
|
|
|
user.generate_password = true
|
|
|
user.mail_notification = 'only_my_events'
|
|
|
|
|
|
unless user.valid?
|
|
|
user.login = "user#{Redmine::Utils.random_hex(6)}" unless user.errors[:login].blank?
|
|
|
user.firstname = "-" unless user.errors[:firstname].blank?
|
|
|
(puts user.errors[:lastname];user.lastname = "-") unless user.errors[:lastname].blank?
|
|
|
end
|
|
|
|
|
|
user
|
|
|
end
|
|
|
|
|
|
# Creates a User for the +email+ sender
|
|
|
# Returns the user or nil if it could not be created
|
|
|
def create_user_from_email
|
|
|
from = email.header['from'].to_s
|
|
|
addr, name = from, nil
|
|
|
if m = from.match(/^"?(.+?)"?\s+<(.+@.+)>$/)
|
|
|
addr, name = m[2], m[1]
|
|
|
end
|
|
|
if addr.present?
|
|
|
user = self.class.new_user_from_attributes(addr, name)
|
|
|
if handler_options[:no_notification]
|
|
|
user.mail_notification = 'none'
|
|
|
end
|
|
|
if user.save
|
|
|
user
|
|
|
else
|
|
|
logger.error "MailHandler: failed to create User: #{user.errors.full_messages}" if logger
|
|
|
nil
|
|
|
end
|
|
|
else
|
|
|
logger.error "MailHandler: failed to create User: no FROM address found" if logger
|
|
|
nil
|
|
|
end
|
|
|
end
|
|
|
|
|
|
# Adds the newly created user to default group
|
|
|
def add_user_to_group(default_group)
|
|
|
if default_group.present?
|
|
|
default_group.split(',').each do |group_name|
|
|
|
if group = Group.named(group_name).first
|
|
|
group.users << @user
|
|
|
elsif logger
|
|
|
logger.warn "MailHandler: could not add user to [#{group_name}], group not found"
|
|
|
end
|
|
|
end
|
|
|
end
|
|
|
end
|
|
|
|
|
|
# Removes the email body of text after the truncation configurations.
|
|
|
def cleanup_body(body)
|
|
|
delimiters = Setting.mail_handler_body_delimiters.to_s.split(/[\r\n]+/).reject(&:blank?).map {|s| Regexp.escape(s)}
|
|
|
unless delimiters.empty?
|
|
|
regex = Regexp.new("^[> ]*(#{ delimiters.join('|') })\s*[\r\n].*", Regexp::MULTILINE)
|
|
|
body = body.gsub(regex, '')
|
|
|
end
|
|
|
body.strip
|
|
|
end
|
|
|
|
|
|
def find_assignee_from_keyword(keyword, issue)
|
|
|
Principal.detect_by_keyword(issue.assignable_users, keyword)
|
|
|
end
|
|
|
end
|
|
|
|
