#-- encoding: UTF-8
#-- copyright
# ChiliProject is a project management system.
#
# Copyright (C) 2010-2012 the ChiliProject Team
#
# 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.
#
# See doc/COPYRIGHT.rdoc for more details.
#++
require File.expand_path('../../test_helper', __FILE__)

class MailHandlerTest < ActiveSupport::TestCase
  fixtures :all

  FIXTURES_PATH = File.dirname(__FILE__) + '/../fixtures/mail_handler'

  def setup
    Setting.bcc_recipients = '0'
    ActionMailer::Base.deliveries.clear
    Setting.notified_events = Redmine::Notifiable.all.collect(&:name)
    Setting.mail_handler_confirmation_on_success = true
    Setting.mail_handler_confirmation_on_failure = true
  end

  def test_add_issue
    ActionMailer::Base.deliveries.clear
    # This email contains: 'Project: onlinestore'
    issue = submit_email('ticket_on_given_project.eml')
    assert issue.is_a?(Issue)
    assert !issue.new_record?
    issue.reload
    assert_equal Project.find(2), issue.project
    assert_equal issue.project.trackers.first, issue.tracker
    assert_equal 'New ticket on a given project', issue.subject
    assert_equal User.find_by_login('jsmith'), issue.author
    assert_equal IssueStatus.find_by_name('Resolved'), issue.status
    assert issue.description.include?('Lorem ipsum dolor sit amet, consectetuer adipiscing elit.')
    assert_equal '2010-01-01', issue.start_date.to_s
    assert_equal '2010-12-31', issue.due_date.to_s
    assert_equal User.find_by_login('jsmith'), issue.assigned_to
    assert_equal Version.find_by_name('alpha'), issue.fixed_version
    assert_equal 2.5, issue.estimated_hours
    assert_equal 30, issue.done_ratio
    assert_equal issue.id, issue.root_id
    assert issue.leaf?
    # keywords should be removed from the email body
    assert !issue.description.match(/^Project:/i)
    assert !issue.description.match(/^Status:/i)
    assert !issue.description.match(/^Start Date:/i)
    # Email notification should be sent
    assert_equal 2, ActionMailer::Base.deliveries.size
    mail = ActionMailer::Base.deliveries.last
    assert_not_nil mail
    assert mail.subject.include?('New ticket on a given project')
  end

  def test_add_issue_with_default_tracker
    # This email contains: 'Project: onlinestore'
    issue = submit_email('ticket_on_given_project.eml', :issue => {:tracker => 'Support request'})
    assert issue.is_a?(Issue)
    assert !issue.new_record?
    issue.reload
    assert_equal 'Support request', issue.tracker.name
  end

  def test_add_issue_with_status
    # This email contains: 'Project: onlinestore' and 'Status: Resolved'
    issue = submit_email('ticket_on_given_project.eml')
    assert issue.is_a?(Issue)
    assert !issue.new_record?
    issue.reload
    assert_equal Project.find(2), issue.project
    assert_equal IssueStatus.find_by_name("Resolved"), issue.status
  end

  def test_add_issue_with_attributes_override
    issue = submit_email('ticket_with_attributes.eml', :allow_override => 'tracker,category,priority')
    assert issue.is_a?(Issue)
    assert !issue.new_record?
    issue.reload
    assert_equal 'New ticket on a given project', issue.subject
    assert_equal User.find_by_login('jsmith'), issue.author
    assert_equal Project.find(2), issue.project
    assert_equal 'Feature request', issue.tracker.to_s
    assert_equal 'Stock management', issue.category.to_s
    assert_equal 'Urgent', issue.priority.to_s
    assert issue.description.include?('Lorem ipsum dolor sit amet, consectetuer adipiscing elit.')
  end

  def test_add_issue_with_partial_attributes_override
    issue = submit_email('ticket_with_attributes.eml', :issue => {:priority => 'High'}, :allow_override => ['tracker'])
    assert issue.is_a?(Issue)
    assert !issue.new_record?
    issue.reload
    assert_equal 'New ticket on a given project', issue.subject
    assert_equal User.find_by_login('jsmith'), issue.author
    assert_equal Project.find(2), issue.project
    assert_equal 'Feature request', issue.tracker.to_s
    assert_nil issue.category
    assert_equal 'High', issue.priority.to_s
    assert issue.description.include?('Lorem ipsum dolor sit amet, consectetuer adipiscing elit.')
  end

  def test_add_issue_with_spaces_between_attribute_and_separator
    issue = submit_email('ticket_with_spaces_between_attribute_and_separator.eml', :allow_override => 'tracker,category,priority')
    assert issue.is_a?(Issue)
    assert !issue.new_record?
    issue.reload
    assert_equal 'New ticket on a given project', issue.subject
    assert_equal User.find_by_login('jsmith'), issue.author
    assert_equal Project.find(2), issue.project
    assert_equal 'Feature request', issue.tracker.to_s
    assert_equal 'Stock management', issue.category.to_s
    assert_equal 'Urgent', issue.priority.to_s
    assert issue.description.include?('Lorem ipsum dolor sit amet, consectetuer adipiscing elit.')
  end


  def test_add_issue_with_attachment_to_specific_project
    issue = submit_email('ticket_with_attachment.eml', :issue => {:project => 'onlinestore'})
    assert issue.is_a?(Issue)
    assert !issue.new_record?
    issue.reload
    assert_equal 'Ticket created by email with attachment', issue.subject
    assert_equal User.find_by_login('jsmith'), issue.author
    assert_equal Project.find(2), issue.project
    assert_equal 'This is  a new ticket with attachments', issue.description
    # Attachment properties
    assert_equal 1, issue.attachments.size
    assert_equal 'Paella.jpg', issue.attachments.first.filename
    assert_equal 'image/jpeg', issue.attachments.first.content_type
    assert_equal 10790, issue.attachments.first.filesize
  end

  def test_add_issue_with_custom_fields
    issue = submit_email('ticket_with_custom_fields.eml', :issue => {:project => 'onlinestore'})
    assert issue.is_a?(Issue)
    assert !issue.new_record?
    issue.reload
    assert_equal 'New ticket with custom field values', issue.subject
    assert_equal 'Value for a custom field', issue.custom_value_for(CustomField.find_by_name('Searchable field')).value
    assert !issue.description.match(/^searchable field:/i)
  end

  def test_add_issue_with_cc
    issue = submit_email('ticket_with_cc.eml', :issue => {:project => 'ecookbook'})
    assert issue.is_a?(Issue)
    assert !issue.new_record?
    issue.reload
    assert issue.watched_by?(User.find_by_mail('dlopper@somenet.foo'))
    assert_equal 1, issue.watcher_user_ids.size
  end

  def test_add_issue_by_unknown_user
    assert_no_difference 'User.count' do
      assert_equal false, submit_email('ticket_by_unknown_user.eml', :issue => {:project => 'ecookbook'})
    end
  end

  def test_add_issue_by_anonymous_user
    Role.anonymous.add_permission!(:add_issues)
    assert_no_difference 'User.count' do
      issue = submit_email('ticket_by_unknown_user.eml', :issue => {:project => 'ecookbook'}, :unknown_user => 'accept')
      assert issue.is_a?(Issue)
      assert issue.author.anonymous?
    end
  end

  def test_add_issue_by_anonymous_user_with_no_from_address
    Role.anonymous.add_permission!(:add_issues)
    assert_no_difference 'User.count' do
      issue = submit_email('ticket_by_empty_user.eml', :issue => {:project => 'ecookbook'}, :unknown_user => 'accept')
      assert issue.is_a?(Issue)
      assert issue.author.anonymous?
    end
  end

  def test_add_issue_by_anonymous_user_on_private_project
    Role.anonymous.add_permission!(:add_issues)
    assert_no_difference 'User.count' do
      assert_no_difference 'Issue.count' do
        assert_equal false, submit_email('ticket_by_unknown_user.eml', :issue => {:project => 'onlinestore'}, :unknown_user => 'accept')
      end
    end
  end

  def test_add_issue_by_anonymous_user_on_private_project_without_permission_check
    assert_no_difference 'User.count' do
      assert_difference 'Issue.count' do
        issue = submit_email('ticket_by_unknown_user.eml', :issue => {:project => 'onlinestore'}, :no_permission_check => '1', :unknown_user => 'accept')
        assert issue.is_a?(Issue)
        assert issue.author.anonymous?
        assert !issue.project.is_public?
        assert_equal issue.id, issue.root_id
        assert issue.leaf?
      end
    end
  end

  def test_add_issue_by_created_user
    Setting.default_language = 'en'
    assert_difference 'User.count' do
      issue = submit_email('ticket_by_unknown_user.eml', :issue => {:project => 'ecookbook'}, :unknown_user => 'create')
      assert issue.is_a?(Issue)
      assert issue.author.active?
      assert_equal 'john.doe@somenet.foo', issue.author.mail
      assert_equal 'John', issue.author.firstname
      assert_equal 'Doe', issue.author.lastname

      # account information
      email = ActionMailer::Base.deliveries.first
      assert_not_nil email
      assert email.subject.include?('account activation')
      login = email.body.match(/\* Login: (.*)$/)[1]
      password = email.body.match(/\* Password: (.*)$/)[1]
      assert_equal issue.author, User.try_to_login(login, password)
    end
  end

  def test_add_issue_without_from_header
    Role.anonymous.add_permission!(:add_issues)
    assert_equal false, submit_email('ticket_without_from_header.eml')
  end

  def test_add_issue_with_invalid_attributes
    issue = submit_email('ticket_with_invalid_attributes.eml', :allow_override => 'tracker,category,priority')
    assert issue.is_a?(Issue)
    assert !issue.new_record?
    issue.reload
    assert_nil issue.assigned_to
    assert_nil issue.start_date
    assert_nil issue.due_date
    assert_equal 0, issue.done_ratio
    assert_equal 'Normal', issue.priority.to_s
    assert issue.description.include?('Lorem ipsum dolor sit amet, consectetuer adipiscing elit.')
  end

  def test_add_issue_with_localized_attributes
    User.find_by_mail('jsmith@somenet.foo').update_attribute 'language', 'fr'
    issue = submit_email('ticket_with_localized_attributes.eml', :allow_override => 'tracker,category,priority')
    assert issue.is_a?(Issue)
    assert !issue.new_record?
    issue.reload
    assert_equal 'New ticket on a given project', issue.subject
    assert_equal User.find_by_login('jsmith'), issue.author
    assert_equal Project.find(2), issue.project
    assert_equal 'Feature request', issue.tracker.to_s
    assert_equal 'Stock management', issue.category.to_s
    assert_equal 'Urgent', issue.priority.to_s
    assert issue.description.include?('Lorem ipsum dolor sit amet, consectetuer adipiscing elit.')
  end

  def test_add_issue_with_japanese_keywords
    tracker = Tracker.create!(:name => '開発')
    Project.find(1).trackers << tracker
    issue = submit_email('japanese_keywords_iso_2022_jp.eml', :issue => {:project => 'ecookbook'}, :allow_override => 'tracker')
    assert_kind_of Issue, issue
    assert_equal tracker, issue.tracker
  end

  def test_should_ignore_emails_from_emission_address
    Role.anonymous.add_permission!(:add_issues)
    assert_no_difference 'User.count' do
      assert_equal false, submit_email('ticket_from_emission_address.eml', :issue => {:project => 'ecookbook'}, :unknown_user => 'create')
    end
  end

  def test_add_issue_should_send_email_notification
    Setting.notified_events = ['issue_added']
    ActionMailer::Base.deliveries.clear
    # This email contains: 'Project: onlinestore'
    issue = submit_email('ticket_on_given_project.eml')
    assert issue.is_a?(Issue)
    assert_equal 2, ActionMailer::Base.deliveries.size
  end

  def test_add_issue_note
    journal = submit_email('ticket_reply.eml')
    assert journal.is_a?(Journal)
    assert_equal User.find_by_login('jsmith'), journal.user
    assert_equal Issue.find(2), journal.journaled
    assert_match /This is reply/, journal.notes
    assert_equal 'Feature request', journal.issue.tracker.name
  end

  def test_add_issue_note_with_attribute_changes
    # This email contains: 'Status: Resolved'
    journal = submit_email('ticket_reply_with_status.eml')
    assert journal.is_a?(Journal)
    issue = Issue.find(journal.journaled.id)
    assert_equal User.find_by_login('jsmith'), journal.user
    assert_equal Issue.find(2), journal.journaled
    assert_match /This is reply/, journal.notes
    assert_equal 'Feature request', journal.issue.tracker.name
    assert_equal IssueStatus.find_by_name("Resolved"), issue.status
    assert_equal '2010-01-01', issue.start_date.to_s
    assert_equal '2010-12-31', issue.due_date.to_s
    assert_equal User.find_by_login('jsmith'), issue.assigned_to
    assert_equal "52.6", issue.custom_value_for(CustomField.find_by_name('Float field')).value
    # keywords should be removed from the email body
    assert !journal.notes.match(/^Status:/i)
    assert !journal.notes.match(/^Start Date:/i)
  end

  def test_add_issue_note_should_send_email_notification
    ActionMailer::Base.deliveries.clear
    journal = submit_email('ticket_reply.eml')
    assert journal.is_a?(Journal)
    assert_equal 4, ActionMailer::Base.deliveries.size
  end

  def test_add_issue_note_should_not_set_defaults
    journal = submit_email('ticket_reply.eml', :issue => {:tracker => 'Support request', :priority => 'High'})
    assert journal.is_a?(Journal)
    assert_match /This is reply/, journal.notes
    assert_equal 'Feature request', journal.issue.tracker.name
    assert_equal 'Normal', journal.issue.priority.name
  end

  def test_reply_to_a_message
    m = submit_email('message_reply.eml')
    assert m.is_a?(Message)
    assert !m.new_record?
    m.reload
    assert_equal 'Reply via email', m.subject
    # The email replies to message #2 which is part of the thread of message #1
    assert_equal Message.find(1), m.parent
  end

  def test_reply_to_a_message_by_subject
    m = submit_email('message_reply_by_subject.eml')
    assert m.is_a?(Message)
    assert !m.new_record?
    m.reload
    assert_equal 'Reply to the first post', m.subject
    assert_equal Message.find(1), m.parent
  end

  def test_should_strip_tags_of_html_only_emails
    issue = submit_email('ticket_html_only.eml', :issue => {:project => 'ecookbook'})
    assert issue.is_a?(Issue)
    assert !issue.new_record?
    issue.reload
    assert_equal 'HTML email', issue.subject
    assert_equal 'This is a html-only email.', issue.description
  end

  context "truncate emails based on the Setting" do
    context "with no setting" do
      setup do
        Setting.mail_handler_body_delimiters = ''
      end

      should "add the entire email into the issue" do
        issue = submit_email('ticket_on_given_project.eml')
        assert_issue_created(issue)
        assert issue.description.include?('---')
        assert issue.description.include?('This paragraph is after the delimiter')
      end
    end

    context "with a single string" do
      setup do
        Setting.mail_handler_body_delimiters = '---'
      end

      should "truncate the email at the delimiter for the issue" do
        issue = submit_email('ticket_on_given_project.eml')
        assert_issue_created(issue)
        assert issue.description.include?('This paragraph is before delimiters')
        assert issue.description.include?('--- This line starts with a delimiter')
        assert !issue.description.match(/^---$/)
        assert !issue.description.include?('This paragraph is after the delimiter')
      end
    end

    context "with a single quoted reply (e.g. reply to a Redmine email notification)" do
      setup do
        Setting.mail_handler_body_delimiters = '--- Reply above. Do not remove this line. ---'
      end

      should "truncate the email at the delimiter with the quoted reply symbols (>)" do
        journal = submit_email('issue_update_with_quoted_reply_above.eml')
        assert journal.is_a?(Journal)
        assert journal.notes.include?('An update to the issue by the sender.')
        assert !journal.notes.match(Regexp.escape("--- Reply above. Do not remove this line. ---"))
        assert !journal.notes.include?('Looks like the JSON api for projects was missed.')

      end

    end

    context "with multiple quoted replies (e.g. reply to a reply of a Redmine email notification)" do
      setup do
        Setting.mail_handler_body_delimiters = '--- Reply above. Do not remove this line. ---'
      end

      should "truncate the email at the delimiter with the quoted reply symbols (>)" do
        journal = submit_email('issue_update_with_multiple_quoted_reply_above.eml')
        assert journal.is_a?(Journal)
        assert journal.notes.include?('An update to the issue by the sender.')
        assert !journal.notes.match(Regexp.escape("--- Reply above. Do not remove this line. ---"))
        assert !journal.notes.include?('Looks like the JSON api for projects was missed.')

      end

    end

    context "with multiple strings" do
      setup do
        Setting.mail_handler_body_delimiters = "---\nBREAK"
      end

      should "truncate the email at the first delimiter found (BREAK)" do
        issue = submit_email('ticket_on_given_project.eml')
        assert_issue_created(issue)
        assert issue.description.include?('This paragraph is before delimiters')
        assert !issue.description.include?('BREAK')
        assert !issue.description.include?('This paragraph is between delimiters')
        assert !issue.description.match(/^---$/)
        assert !issue.description.include?('This paragraph is after the delimiter')
      end
    end
  end

  def test_email_with_long_subject_line
    issue = submit_email('ticket_with_long_subject.eml')
    assert issue.is_a?(Issue)
    assert_equal issue.subject, 'New ticket on a given project with a very long subject line which exceeds 255 chars and should not be ignored but chopped off. And if the subject line is still not long enough, we just add more text. And more text. Wow, this is really annoying. Especially, if you have nothing to say...'[0,255]
  end

  context "with an email that performs an unauthorized action" do
    should "deliver an email error confirmation for an unknown user" do
      ActionMailer::Base.deliveries.clear
      issue = submit_email('ticket_by_unknown_user.eml')
      assert_equal false, issue

      assert_equal 1, ActionMailer::Base.deliveries.size
      mail = ActionMailer::Base.deliveries.last
      assert_not_nil mail
      assert mail.to.include?('john.doe@somenet.foo')
      assert mail.subject.include?('Failed email submission: Ticket by unknown user')
      assert mail.body.include?('You are not authorized to perform this action')
    end

    should "deliver an email error confirmation for a user without permission" do
      ActionMailer::Base.deliveries.clear
      # Clear memberships for the sending user so they fail permission checks
      Project.find(1).update_attributes(:is_public => false)
      Member.all(:conditions => {:user_id => 2}).collect(&:destroy)
      assert_no_difference('Journal.count') do
        assert_equal false, submit_email('ticket_reply.eml')
      end

      assert_equal 1, ActionMailer::Base.deliveries.size
      mail = ActionMailer::Base.deliveries.last
      assert_not_nil mail
      assert mail.to.include?('jsmith@somenet.foo')
      assert mail.subject.include?('Failed email submission: Re: Add ingredients categories')
      assert mail.body.include?('You are not authorized to perform this action')
    end
  end

  context "with an email that is missing required information" do
    should "deliver an email error confirmation to the sender for a missing project" do
      ActionMailer::Base.deliveries.clear
      issue = submit_email('ticket_with_attachment.eml') # No project set
      assert_equal false, issue

      assert_equal 1, ActionMailer::Base.deliveries.size
      mail = ActionMailer::Base.deliveries.last
      assert_not_nil mail
      assert mail.to.include?('jsmith@somenet.foo')
      assert mail.subject.include?('Failed email submission: Ticket created by email with attachment')
      assert mail.body.include?('There were errors with your email submission')
      assert mail.body.include?('Unable to determine target project')

    end

    should "deliver an email error confirmation to the sender for a missing other attributes" do
      # Add a required custom field to simulate the error
      project = Project.find('onlinestore')
      project.issue_custom_fields << IssueCustomField.generate(:name => 'Required Custom Field0', :is_required => true, :trackers => project.trackers)
      project.save

      ActionMailer::Base.deliveries.clear
      issue = submit_email('ticket_on_project_with_missing_information.eml')
      assert_equal false, issue

      assert_equal 1, ActionMailer::Base.deliveries.size
      mail = ActionMailer::Base.deliveries.last
      assert_not_nil mail
      assert mail.to.include?('jsmith@somenet.foo')
      assert mail.subject.include?('Failed email submission: New ticket on a given project')
      assert mail.body.include?('There were errors with your email submission')
      assert mail.body.include?('Required Custom Field0 can\'t be blank')
    end
  end

  context "#receive_issue" do
    should "deliver an email confirmation when configured" do
      ActionMailer::Base.deliveries.clear
      issue = submit_email('ticket_on_given_project.eml')

      assert_equal 2, ActionMailer::Base.deliveries.size
      mail = ActionMailer::Base.deliveries.last
      assert_not_nil mail
      assert mail.subject.include?('[OnlineStore]'), "Project name missing"
      assert mail.subject.include?('Confirmation of email submission: New ticket on a given project'), "Main subject missing"
      assert mail.body.include?("/issues/#{issue.reload.id}"), "Link to issue missing"
    end
  end

  context "#receive_issue_reply" do
    should "deliver an email confirmation when configured" do
      journal = submit_email('ticket_reply.eml')

      assert_equal 4, ActionMailer::Base.deliveries.size
      mail = ActionMailer::Base.deliveries.last
      assert_not_nil mail
      assert mail.subject.include?('[eCookbook]'), "Project name missing"
      assert mail.subject.include?('Confirmation of email submission: Re: Add ingredients categories'), "Main subject missing"
      assert mail.body.include?("/issues/2"), "Link to issue missing"
    end

  end

  context "#receive_message_reply" do
    should "deliver an email confirmation when configured" do
      ActionMailer::Base.deliveries.clear
      m = submit_email('message_reply.eml')

      assert_equal 4, ActionMailer::Base.deliveries.size
      mail = ActionMailer::Base.deliveries.last
      assert_not_nil mail
      assert mail.subject.include?('[eCookbook]'), "Project name missing"
      assert mail.subject.include?('Confirmation of email submission: Reply via email'), "Main subject missing"
      assert mail.body.include?("/boards/1/topics/1"), "Link to message missing"
    end
  end

  private

  def submit_email(filename, options={})
    raw = IO.read(File.join(FIXTURES_PATH, filename))
    MailHandler.receive(raw, options)
  end

  def assert_issue_created(issue)
    assert issue.is_a?(Issue)
    assert !issue.new_record?
    issue.reload
  end
end