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ed47b55026
A while ago we increased group SMTP read and open timeouts
to address issues we were seeing with Gmail sometimes giving
really long timeouts for these values. The commit was:
3e639e4aa7
Now, we want to increase all SMTP read timeouts to 30s,
since the 5s is too low sometimes, and the ruby Net::SMTP
stdlib also defaults to 30s.
Also, we want to slightly tweak the group smtp email job
not to fail if the IncomingEmail log fails to create, or if
a ReadTimeout is encountered, to avoid retrying the job in sidekiq
again and sending the same email out.
141 lines
4.8 KiB
Ruby
141 lines
4.8 KiB
Ruby
# frozen_string_literal: true
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module Jobs
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class GroupSmtpEmail < ::Jobs::Base
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include Skippable
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sidekiq_options queue: "critical"
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sidekiq_retry_in do |count, exception|
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# retry in an hour when SMTP server is busy
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# or use default sidekiq retry formula. returning
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# nil/0 will trigger the default sidekiq
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# retry formula
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#
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# See https://github.com/mperham/sidekiq/blob/3330df0ee37cfd3e0cd3ef01e3e66b584b99d488/lib/sidekiq/job_retry.rb#L216-L234
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case exception.wrapped
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when Net::SMTPServerBusy
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return 1.hour + (rand(30) * (count + 1))
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end
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end
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def execute(args)
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return if quit_email_early?
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email = args[:email]
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recipient_user = User.find_by_email(email, primary: true)
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post = Post.find_by(id: args[:post_id])
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return skip(email, nil, recipient_user, :group_smtp_post_deleted) if post.blank?
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group = Group.find_by(id: args[:group_id])
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return if group.blank?
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if !group.smtp_enabled
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return skip(email, post, recipient_user, :group_smtp_disabled_for_group)
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end
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if !Topic.exists?(id: post.topic_id)
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return skip(email, post, recipient_user, :group_smtp_topic_deleted)
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end
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cc_addresses =
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args[:cc_emails].filter { |address| EmailAddressValidator.valid_value?(address) }
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# Mask the email addresses of non-staged users so
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# they are not revealed unnecessarily when we are sending
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# the email notification out.
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bcc_addresses = User.not_staged.with_email(cc_addresses).pluck(:email)
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cc_addresses = cc_addresses - bcc_addresses
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# There is a rare race condition causing the Imap::Sync class to create
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# an incoming email and associated post/topic, which then kicks off
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# the PostAlerter to notify others in the PM about a reply in the topic,
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# but for the OP which is not necessary (because the person emailing the
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# IMAP inbox already knows about the OP)
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#
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# Basically, we should never be sending this notification for the first
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# post in a topic.
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#
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# If the group does not have IMAP enabled then this could be legitimate,
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# for example in cases where we are creating a new topic to reply to another
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# group PM and we need to send the participants the group OP email.
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if post.is_first_post? && group.imap_enabled
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ImapSyncLog.warn(
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"Aborting SMTP email for post #{post.id} in topic #{post.topic_id} to #{email}, the post is the OP and should not send an email.",
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group,
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)
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return
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end
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ImapSyncLog.debug(
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"Sending SMTP email for post #{post.id} in topic #{post.topic_id} to #{email}.",
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group,
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)
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# The EmailLog record created by the sender will have the raw email
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# stored, the group smtp ID, and any cc addresses recorded for later
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# cross referencing.
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message =
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GroupSmtpMailer.send_mail(
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group,
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email,
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post,
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cc_addresses: cc_addresses,
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bcc_addresses: bcc_addresses,
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)
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begin
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Email::Sender.new(message, :group_smtp, recipient_user).send
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rescue Net::ReadTimeout => err
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# We can't be sure if the send actually failed or if ENTER . ENTER (to end
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# the SMTP data sequence) just timed out, as is the case with Gmail occassionaly,
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# where they can do this if they suspect you are sending spam.
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Discourse.warn_exception(
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err,
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message: "Got SMTP read timeout when sending group SMTP email",
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env: args,
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)
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end
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# Create an incoming email record to avoid importing again from IMAP
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# server. While this may not be technically required if IMAP is not
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# currently enabled for the group, it will help a lot with the initial
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# sync if it is turned on at a later date.
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begin
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IncomingEmail.create!(
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user_id: post.user_id,
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topic_id: post.topic_id,
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post_id: post.id,
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raw: message.to_s,
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subject: message.subject,
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message_id: message.message_id,
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to_addresses: message.to,
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cc_addresses: message.cc,
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from_address: message.from,
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created_via: IncomingEmail.created_via_types[:group_smtp],
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)
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rescue => err
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Discourse.warn_exception(
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err,
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message: "Failed to create IncomingEmail record when sending group SMTP email",
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env: args,
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)
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end
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end
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def quit_email_early?
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SiteSetting.disable_emails == "yes" || !SiteSetting.enable_smtp
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end
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def skip(email, post, recipient_user, reason)
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create_skipped_email_log(
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email_type: :group_smtp,
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to_address: email,
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user_id: recipient_user&.id,
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post_id: post&.id,
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reason_type: SkippedEmailLog.reason_types[reason],
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)
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end
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end
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end
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