SoundSoftware Code Site

# Redmine - project management software

# Copyright (C) 2006-2013  Jean-Philippe Lang

#

# This program is free software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License

# as published by the Free Software Foundation; either version 2

# of the License, or (at your option) any later version.

#

# This program 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 General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

class Mailer < ActionMailer::Base

  layout 'mailer'

  helper :application

  helper :issues

  helper :custom_fields

  include Redmine::I18n

  def self.default_url_options

    { :host => Setting.host_name, :protocol => Setting.protocol }

  end

  # Builds a Mail::Message object used to email recipients of the added issue.

  #

  # Example:

  #   issue_add(issue) => Mail::Message object

  #   Mailer.issue_add(issue).deliver => sends an email to issue recipients

  def issue_add(issue)

    redmine_headers 'Project' => issue.project.identifier,

                    'Issue-Id' => issue.id,

                    'Issue-Author' => issue.author.login

    redmine_headers 'Issue-Assignee' => issue.assigned_to.login if issue.assigned_to

    message_id issue

    @author = issue.author

    @issue = issue

    @issue_url = url_for(:controller => 'issues', :action => 'show', :id => issue)

    recipients = issue.recipients

    cc = issue.watcher_recipients - recipients

    mail :to => recipients,

      :cc => cc,

      :subject => "[#{issue.project.name} - #{issue.tracker.name} ##{issue.id}] (#{issue.status.name}) #{issue.subject}"

  end

  # Builds a Mail::Message object used to email recipients of the edited issue.

  #

  # Example:

  #   issue_edit(journal) => Mail::Message object

  #   Mailer.issue_edit(journal).deliver => sends an email to issue recipients

  def issue_edit(journal)

    issue = journal.journalized.reload

    redmine_headers 'Project' => issue.project.identifier,

                    'Issue-Id' => issue.id,

                    'Issue-Author' => issue.author.login

    redmine_headers 'Issue-Assignee' => issue.assigned_to.login if issue.assigned_to

    message_id journal

    references issue

    @author = journal.user

    recipients = journal.recipients

    # Watchers in cc

    cc = journal.watcher_recipients - recipients

    s = "[#{issue.project.name} - #{issue.tracker.name} ##{issue.id}] "

    s << "(#{issue.status.name}) " if journal.new_value_for('status_id')

    s << issue.subject

    @issue = issue

    @journal = journal

    @issue_url = url_for(:controller => 'issues', :action => 'show', :id => issue, :anchor => "change-#{journal.id}")

    mail :to => recipients,

      :cc => cc,

      :subject => s

  end

  def reminder(user, issues, days)

    set_language_if_valid user.language

    @issues = issues

    @days = days

    @issues_url = url_for(:controller => 'issues', :action => 'index',

                                :set_filter => 1, :assigned_to_id => user.id,

                                :sort => 'due_date:asc')

    mail :to => user.mail,

      :subject => l(:mail_subject_reminder, :count => issues.size, :days => days)

  end

  # Builds a Mail::Message object used to email users belonging to the added document's project.

  #

  # Example:

  #   document_added(document) => Mail::Message object

  #   Mailer.document_added(document).deliver => sends an email to the document's project recipients

  def document_added(document)

    redmine_headers 'Project' => document.project.identifier

    @author = User.current

    @document = document

    @document_url = url_for(:controller => 'documents', :action => 'show', :id => document)

    mail :to => document.recipients,

      :subject => "[#{document.project.name}] #{l(:label_document_new)}: #{document.title}"

  end

  # Builds a Mail::Message object used to email recipients of a project when an attachements are added.

  #

  # Example:

  #   attachments_added(attachments) => Mail::Message object

  #   Mailer.attachments_added(attachments).deliver => sends an email to the project's recipients

  def attachments_added(attachments)

    container = attachments.first.container

    added_to = ''

    added_to_url = ''

    @author = attachments.first.author

    case container.class.name

    when 'Project'

      added_to_url = url_for(:controller => 'files', :action => 'index', :project_id => container)

      added_to = "#{l(:label_project)}: #{container}"

      recipients = container.project.notified_users.select {|user| user.allowed_to?(:view_files, container.project)}.collect  {|u| u.mail}

    when 'Version'

      added_to_url = url_for(:controller => 'files', :action => 'index', :project_id => container.project)

      added_to = "#{l(:label_version)}: #{container.name}"

      recipients = container.project.notified_users.select {|user| user.allowed_to?(:view_files, container.project)}.collect  {|u| u.mail}

    when 'Document'

      added_to_url = url_for(:controller => 'documents', :action => 'show', :id => container.id)

      added_to = "#{l(:label_document)}: #{container.title}"

      recipients = container.recipients

    end

    redmine_headers 'Project' => container.project.identifier

    @attachments = attachments

    @added_to = added_to

    @added_to_url = added_to_url

    mail :to => recipients,

      :subject => "[#{container.project.name}] #{l(:label_attachment_new)}"

  end

  # Builds a Mail::Message object used to email recipients of a news' project when a news item is added.

  #

  # Example:

  #   news_added(news) => Mail::Message object

  #   Mailer.news_added(news).deliver => sends an email to the news' project recipients

  def news_added(news)

    redmine_headers 'Project' => news.project.identifier

    @author = news.author

    message_id news

    @news = news

    @news_url = url_for(:controller => 'news', :action => 'show', :id => news)

    mail :to => news.recipients,

      :subject => "[#{news.project.name}] #{l(:label_news)}: #{news.title}"

  end

  # Builds a Mail::Message object used to email recipients of a news' project when a news comment is added.

  #

  # Example:

  #   news_comment_added(comment) => Mail::Message object

  #   Mailer.news_comment_added(comment) => sends an email to the news' project recipients

  def news_comment_added(comment)

    news = comment.commented

    redmine_headers 'Project' => news.project.identifier

    @author = comment.author

    message_id comment

    @news = news

    @comment = comment

    @news_url = url_for(:controller => 'news', :action => 'show', :id => news)

    mail :to => news.recipients,

     :cc => news.watcher_recipients,

     :subject => "Re: [#{news.project.name}] #{l(:label_news)}: #{news.title}"

  end

  # Builds a Mail::Message object used to email the recipients of the specified message that was posted.

  #

  # Example:

  #   message_posted(message) => Mail::Message object

  #   Mailer.message_posted(message).deliver => sends an email to the recipients

  def message_posted(message)

    redmine_headers 'Project' => message.project.identifier,

                    'Topic-Id' => (message.parent_id || message.id)

    @author = message.author

    message_id message

    references message.parent unless message.parent.nil?

    recipients = message.recipients

    cc = ((message.root.watcher_recipients + message.board.watcher_recipients).uniq - recipients)

    @message = message

    @message_url = url_for(message.event_url)

    mail :to => recipients,

      :cc => cc,

      :subject => "[#{message.board.project.name} - #{message.board.name} - msg#{message.root.id}] #{message.subject}"

  end

  # Builds a Mail::Message object used to email the recipients of a project of the specified wiki content was added.

  #

  # Example:

  #   wiki_content_added(wiki_content) => Mail::Message object

  #   Mailer.wiki_content_added(wiki_content).deliver => sends an email to the project's recipients

  def wiki_content_added(wiki_content)

    redmine_headers 'Project' => wiki_content.project.identifier,

                    'Wiki-Page-Id' => wiki_content.page.id

    @author = wiki_content.author

    message_id wiki_content

    recipients = wiki_content.recipients

    cc = wiki_content.page.wiki.watcher_recipients - recipients

    @wiki_content = wiki_content

    @wiki_content_url = url_for(:controller => 'wiki', :action => 'show',

                                      :project_id => wiki_content.project,

                                      :id => wiki_content.page.title)

    mail :to => recipients,

      :cc => cc,

      :subject => "[#{wiki_content.project.name}] #{l(:mail_subject_wiki_content_added, :id => wiki_content.page.pretty_title)}"

  end

  # Builds a Mail::Message object used to email the recipients of a project of the specified wiki content was updated.

  #

  # Example:

  #   wiki_content_updated(wiki_content) => Mail::Message object

  #   Mailer.wiki_content_updated(wiki_content).deliver => sends an email to the project's recipients

  def wiki_content_updated(wiki_content)

    redmine_headers 'Project' => wiki_content.project.identifier,

                    'Wiki-Page-Id' => wiki_content.page.id

    @author = wiki_content.author

    message_id wiki_content

    recipients = wiki_content.recipients

    cc = wiki_content.page.wiki.watcher_recipients + wiki_content.page.watcher_recipients - recipients

    @wiki_content = wiki_content

    @wiki_content_url = url_for(:controller => 'wiki', :action => 'show',

                                      :project_id => wiki_content.project,

                                      :id => wiki_content.page.title)

    @wiki_diff_url = url_for(:controller => 'wiki', :action => 'diff',

                                   :project_id => wiki_content.project, :id => wiki_content.page.title,

                                   :version => wiki_content.version)

    mail :to => recipients,

      :cc => cc,

      :subject => "[#{wiki_content.project.name}] #{l(:mail_subject_wiki_content_updated, :id => wiki_content.page.pretty_title)}"

  end

  # Builds a Mail::Message object used to email the specified user their account information.

  #

  # Example:

  #   account_information(user, password) => Mail::Message object

  #   Mailer.account_information(user, password).deliver => sends account information to the user

  def account_information(user, password)

    set_language_if_valid user.language

    @user = user

    @password = password

    @login_url = url_for(:controller => 'account', :action => 'login')

    mail :to => user.mail,

      :subject => l(:mail_subject_register, Setting.app_title)

  end

  # Builds a Mail::Message object used to email all active administrators of an account activation request.

  #

  # Example:

  #   account_activation_request(user) => Mail::Message object

  #   Mailer.account_activation_request(user).deliver => sends an email to all active administrators

  def account_activation_request(user)

    # Send the email to all active administrators

    recipients = User.active.where(:admin => true).all.collect { |u| u.mail }.compact

    @user = user

    @url = url_for(:controller => 'users', :action => 'index',

                         :status => User::STATUS_REGISTERED,

                         :sort_key => 'created_on', :sort_order => 'desc')

    mail :to => recipients,

      :subject => l(:mail_subject_account_activation_request, Setting.app_title)

  end

  # Builds a Mail::Message object used to email the specified user that their account was activated by an administrator.

  #

  # Example:

  #   account_activated(user) => Mail::Message object

  #   Mailer.account_activated(user).deliver => sends an email to the registered user

  def account_activated(user)

    set_language_if_valid user.language

    @user = user

    @login_url = url_for(:controller => 'account', :action => 'login')

    mail :to => user.mail,

      :subject => l(:mail_subject_register, Setting.app_title)

  end

  def lost_password(token)

    set_language_if_valid(token.user.language)

    @token = token

    @url = url_for(:controller => 'account', :action => 'lost_password', :token => token.value)

    mail :to => token.user.mail,

      :subject => l(:mail_subject_lost_password, Setting.app_title)

  end

  def register(token)

    set_language_if_valid(token.user.language)

    @token = token

    @url = url_for(:controller => 'account', :action => 'activate', :token => token.value)

    mail :to => token.user.mail,

      :subject => l(:mail_subject_register, Setting.app_title)

  end

  def test_email(user)

    set_language_if_valid(user.language)

    @url = url_for(:controller => 'welcome')

    mail :to => user.mail,

      :subject => 'Redmine test'

  end

  # Overrides default deliver! method to prevent from sending an email

  # with no recipient, cc or bcc

  def deliver!(mail = @mail)

    set_language_if_valid @initial_language

    return false if (recipients.nil? || recipients.empty?) &&

                    (cc.nil? || cc.empty?) &&

                    (bcc.nil? || bcc.empty?)

    # Log errors when raise_delivery_errors is set to false, Rails does not

    raise_errors = self.class.raise_delivery_errors

    self.class.raise_delivery_errors = true

    begin

      return super(mail)

    rescue Exception => e

      if raise_errors

        raise e

      elsif mylogger

        mylogger.error "The following error occured while sending email notification: \"#{e.message}\". Check your configuration in config/configuration.yml."

      end

    ensure

      self.class.raise_delivery_errors = raise_errors

    end

  end

  # Sends reminders to issue assignees

  # Available options:

  # * :days     => how many days in the future to remind about (defaults to 7)

  # * :tracker  => id of tracker for filtering issues (defaults to all trackers)

  # * :project  => id or identifier of project to process (defaults to all projects)

  # * :users    => array of user/group ids who should be reminded

  def self.reminders(options={})

    days = options[:days] || 7

    project = options[:project] ? Project.find(options[:project]) : nil

    tracker = options[:tracker] ? Tracker.find(options[:tracker]) : nil

    user_ids = options[:users]

    scope = Issue.open.where("#{Issue.table_name}.assigned_to_id IS NOT NULL" +

      " AND #{Project.table_name}.status = #{Project::STATUS_ACTIVE}" +

      " AND #{Issue.table_name}.due_date <= ?", days.day.from_now.to_date

    )

    scope = scope.where(:assigned_to_id => user_ids) if user_ids.present?

    scope = scope.where(:project_id => project.id) if project

    scope = scope.where(:tracker_id => tracker.id) if tracker

    issues_by_assignee = scope.includes(:status, :assigned_to, :project, :tracker).all.group_by(&:assigned_to)

    issues_by_assignee.keys.each do |assignee|

      if assignee.is_a?(Group)

        assignee.users.each do |user|

          issues_by_assignee[user] ||= []

          issues_by_assignee[user] += issues_by_assignee[assignee]

        end

      end

    end

    issues_by_assignee.each do |assignee, issues|

      reminder(assignee, issues, days).deliver if assignee.is_a?(User) && assignee.active?

    end

  end

  # Activates/desactivates email deliveries during +block+

  def self.with_deliveries(enabled = true, &block)

    was_enabled = ActionMailer::Base.perform_deliveries

    ActionMailer::Base.perform_deliveries = !!enabled

    yield

  ensure

    ActionMailer::Base.perform_deliveries = was_enabled

  end

  # Sends emails synchronously in the given block

  def self.with_synched_deliveries(&block)

    saved_method = ActionMailer::Base.delivery_method

    if m = saved_method.to_s.match(%r{^async_(.+)$})

      synched_method = m[1]

      ActionMailer::Base.delivery_method = synched_method.to_sym

      ActionMailer::Base.send "#{synched_method}_settings=", ActionMailer::Base.send("async_#{synched_method}_settings")

    end

    yield

  ensure

    ActionMailer::Base.delivery_method = saved_method

  end

  def mail(headers={})

    headers.merge! 'X-Mailer' => 'Redmine',

            'X-Redmine-Host' => Setting.host_name,

            'X-Redmine-Site' => Setting.app_title,

            'X-Auto-Response-Suppress' => 'OOF',

            'Auto-Submitted' => 'auto-generated',

            'From' => Setting.mail_from,

            'List-Id' => "<#{Setting.mail_from.to_s.gsub('@', '.')}>"

    # Removes the author from the recipients and cc

    # if he doesn't want to receive notifications about what he does

    if @author && @author.logged? && @author.pref[:no_self_notified]

      headers[:to].delete(@author.mail) if headers[:to].is_a?(Array)

      headers[:cc].delete(@author.mail) if headers[:cc].is_a?(Array)

    end

    if @author && @author.logged?

      redmine_headers 'Sender' => @author.login

    end

    # Blind carbon copy recipients

    if Setting.bcc_recipients?

      headers[:bcc] = [headers[:to], headers[:cc]].flatten.uniq.reject(&:blank?)

      headers[:to] = nil

      headers[:cc] = nil

    end

    if @message_id_object

      headers[:message_id] = "<#{self.class.message_id_for(@message_id_object)}>"

    end

    if @references_objects

      headers[:references] = @references_objects.collect {|o| "<#{self.class.message_id_for(o)}>"}.join(' ')

    end

    super headers do |format|

      format.text

      format.html unless Setting.plain_text_mail?

    end

    set_language_if_valid @initial_language

  end

  def initialize(*args)

    @initial_language = current_language

    set_language_if_valid Setting.default_language

    super

  end

  def self.deliver_mail(mail)

    return false if mail.to.blank? && mail.cc.blank? && mail.bcc.blank?

    super

  end

  def self.method_missing(method, *args, &block)

    if m = method.to_s.match(%r{^deliver_(.+)$})

      ActiveSupport::Deprecation.warn "Mailer.deliver_#{m[1]}(*args) is deprecated. Use Mailer.#{m[1]}(*args).deliver instead."

      send(m[1], *args).deliver

    else

      super

    end

  end

  private

  # Appends a Redmine header field (name is prepended with 'X-Redmine-')

  def redmine_headers(h)

    h.each { |k,v| headers["X-Redmine-#{k}"] = v.to_s }

  end

  # Returns a predictable Message-Id for the given object

  def self.message_id_for(object)

    # id + timestamp should reduce the odds of a collision

    # as far as we don't send multiple emails for the same object

    timestamp = object.send(object.respond_to?(:created_on) ? :created_on : :updated_on)

    hash = "redmine.#{object.class.name.demodulize.underscore}-#{object.id}.#{timestamp.strftime("%Y%m%d%H%M%S")}"

    host = Setting.mail_from.to_s.gsub(%r{^.*@}, '')

    host = "#{::Socket.gethostname}.redmine" if host.empty?

    "#{hash}@#{host}"

  end

  def message_id(object)

    @message_id_object = object

  end

  def references(object)

    @references_objects ||= []

    @references_objects << object

  end

  def mylogger

    Rails.logger

  end

end