discourse/app/mailers/group_smtp_mailer.rb
Martin Brennan 632942e697
FIX: Ensure group SMTP and message builder always uses from address for Reply-To when IMAP is enabled (#11037)
There is a site setting reply_by_email_enabled which when combined with reply_by_email_address creates a Reply-To header in emails in the format "test+%{reply_key}@test.com" along with a PostReplyKey record, so when replying Discourse knows where to route the reply.

However this conflicts with the IMAP implementation. Since we are sending the email for a group via SMTP and from their actual email account, we want all replys to go to that email account as well so the IMAP sync job can pick them up and put them in the correct place. So if the group has IMAP enabled and configured, then the reply-to header will be correct.

This PR also makes a further fix to 64b0b50 by using the correct recipient user for the PostReplyKey record. If the post user is used we encounter this error:

if destination.user_id != user.id && !forwarded_reply_key?(destination, user)
  raise ReplyUserNotMatchingError, "post_reply_key.user_id => #{destination.user_id.inspect}, user.id => #{user.id.inspect}"
end
This is because the user above is found from the from_address, but the destination which is the PostReplyKey is made by the post.user, which will be different people.
2020-10-28 07:01:58 +10:00

123 lines
3.7 KiB
Ruby

# frozen_string_literal: true
require_dependency 'email/message_builder'
class GroupSmtpMailer < ActionMailer::Base
include Email::BuildEmailHelper
def send_mail(from_group, to_address, post)
raise 'SMTP is disabled' if !SiteSetting.enable_smtp
incoming_email = IncomingEmail.joins(:post)
.where('imap_uid IS NOT NULL')
.where(topic_id: post.topic_id, posts: { post_number: 1 })
.limit(1).first
context_posts = Post
.where(topic_id: post.topic_id)
.where("post_number < ?", post.post_number)
.where(user_deleted: false)
.where(hidden: false)
.where(post_type: Post.types[:regular])
.order(created_at: :desc)
.limit(SiteSetting.email_posts_context)
.to_a
delivery_options = {
address: from_group.smtp_server,
port: from_group.smtp_port,
domain: from_group.email_username.split('@').last,
user_name: from_group.email_username,
password: from_group.email_password,
authentication: GlobalSetting.smtp_authentication,
enable_starttls_auto: from_group.smtp_ssl
}
user_name = post.user.username
if SiteSetting.enable_names && SiteSetting.display_name_on_email_from
user_name = post.user.name unless post.user.name.blank?
end
build_email(to_address,
message: post.raw,
url: post.url(without_slug: SiteSetting.private_email?),
post_id: post.id,
topic_id: post.topic_id,
context: context(context_posts),
username: post.user.username,
group_name: from_group.name,
allow_reply_by_email: true,
only_reply_by_email: true,
use_from_address_for_reply_to: from_group.imap_enabled?,
private_reply: post.topic.private_message?,
participants: participants(post),
include_respond_instructions: true,
template: 'user_notifications.user_posted_pm',
use_topic_title_subject: true,
topic_title: incoming_email&.subject || post.topic.title,
add_re_to_subject: true,
locale: SiteSetting.default_locale,
delivery_method_options: delivery_options,
from: from_group.email_username,
from_alias: I18n.t('email_from', user_name: user_name, site_name: Email.site_title),
html_override: html_override(post, context_posts: context_posts)
)
end
private
def context(context_posts)
return "" if SiteSetting.private_email?
context = +""
if context_posts.size > 0
context << +"-- \n*#{I18n.t('user_notifications.previous_discussion')}*\n"
context_posts.each { |post| context << email_post_markdown(post, true) }
end
context
end
def email_post_markdown(post, add_posted_by = false)
result = +"#{post.raw}\n\n"
if add_posted_by
result << "#{I18n.t('user_notifications.posted_by', username: post.username, post_date: post.created_at.strftime("%m/%d/%Y"))}\n\n"
end
result
end
def html_override(post, context_posts: nil)
UserNotificationRenderer.render(
template: 'email/notification',
format: :html,
locals: {
context_posts: context_posts,
reached_limit: nil,
post: post,
in_reply_to_post: post.reply_to_post,
classes: Rtl.new(nil).css_class,
first_footer_classes: ''
}
)
end
def participants(post)
list = []
post.topic.allowed_groups.each do |g|
list.push("[#{g.name} (#{g.users.count})](#{Discourse.base_url}/groups/#{g.name})")
end
post.topic.allowed_users.each do |u|
if SiteSetting.prioritize_username_in_ux?
list.push("[#{u.username}](#{Discourse.base_url}/u/#{u.username_lower})")
else
list.push("[#{u.name.blank? ? u.username : u.name}](#{Discourse.base_url}/u/#{u.username_lower})")
end
end
list.join(', ')
end
end