discourse/app/jobs/regular/user_email.rb

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# frozen_string_literal: true
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module Jobs
# Asynchronously send an email to a user
class UserEmail < ::Jobs::Base
include Skippable
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sidekiq_options queue: 'low'
# Can be overridden by subclass, for example critical email
# should always consider being sent
def quit_email_early?
SiteSetting.disable_emails == 'yes'
end
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def execute(args)
raise Discourse::InvalidParameters.new(:user_id) unless args[:user_id].present?
raise Discourse::InvalidParameters.new(:type) unless args[:type].present?
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# This is for performance. Quit out fast without doing a bunch
# of extra work when emails are disabled.
return if quit_email_early?
post = nil
notification = nil
type = args[:type]
user = User.find_by(id: args[:user_id])
to_address = args[:to_address].presence || user&.primary_email&.email.presence || "no_email_found"
set_skip_context(type, args[:user_id], to_address, args[:post_id])
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return skip(SkippedEmailLog.reason_types[:user_email_no_user]) if !user
return skip(SkippedEmailLog.reason_types[:user_email_no_email]) if to_address == "no_email_found"
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if args[:post_id].present?
post = Post.find_by(id: args[:post_id])
if post.blank?
return skip(SkippedEmailLog.reason_types[:user_email_post_not_found])
end
if !Guardian.new(user).can_see?(post)
return skip(SkippedEmailLog.reason_types[:user_email_access_denied])
end
end
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if args[:notification_id].present?
notification = Notification.find_by(id: args[:notification_id])
end
message, skip_reason_type = message_for_email(
user,
post,
type,
notification,
args
)
if message
Email::Sender.new(message, type, user).send
if (b = user.user_stat.bounce_score) > SiteSetting.bounce_score_erode_on_send
# erode bounce score each time we send an email
# this means that we are punished a lot less for bounces
# and we can recover more quickly
user.user_stat.update(bounce_score: b - SiteSetting.bounce_score_erode_on_send)
end
else
skip_reason_type
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end
end
def set_skip_context(type, user_id, to_address, post_id)
@skip_context = { type: type, user_id: user_id, to_address: to_address, post_id: post_id }
end
NOTIFICATIONS_SENT_BY_MAILING_LIST ||= Set.new %w{
posted
replied
mentioned
group_mentioned
quoted
}
def message_for_email(user, post, type, notification, args = nil)
args ||= {}
notification_type = args[:notification_type]
notification_data_hash = args[:notification_data_hash]
email_token = args[:email_token]
to_address = args[:to_address]
set_skip_context(type, user.id, to_address || user.email, post.try(:id))
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if user.anonymous?
return skip_message(SkippedEmailLog.reason_types[:user_email_anonymous_user])
end
if user.suspended? && !["user_private_message", "account_suspended"].include?(type.to_s)
return skip_message(SkippedEmailLog.reason_types[:user_email_user_suspended_not_pm])
end
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if type.to_s == "digest"
return if user.staged
return if user.last_emailed_at &&
user.last_emailed_at >
(user.user_option&.digest_after_minutes || SiteSetting.default_email_digest_frequency.to_i).minutes.ago
end
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seen_recently = (user.last_seen_at.present? && user.last_seen_at > SiteSetting.email_time_window_mins.minutes.ago)
seen_recently = false if always_email_regular?(user, type) || always_email_private_message?(user, type) || user.staged
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email_args = {}
if (post || notification || notification_type) &&
(seen_recently && !user.suspended?)
return skip_message(SkippedEmailLog.reason_types[:user_email_seen_recently])
end
email_args[:post] = post if post
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if notification || notification_type
email_args[:notification_type] ||= notification_type || notification.try(:notification_type)
email_args[:notification_data_hash] ||= notification_data_hash || notification.try(:data_hash)
unless String === email_args[:notification_type]
if Numeric === email_args[:notification_type]
email_args[:notification_type] = Notification.types[email_args[:notification_type]]
end
email_args[:notification_type] = email_args[:notification_type].to_s
end
if user.user_option.mailing_list_mode? &&
user.user_option.mailing_list_mode_frequency > 0 && # don't catch notifications for users on daily mailing list mode
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(!post.try(:topic).try(:private_message?)) &&
NOTIFICATIONS_SENT_BY_MAILING_LIST.include?(email_args[:notification_type])
# no need to log a reason when the mail was already sent via the mailing list job
return [nil, nil]
end
unless always_email_regular?(user, type) || always_email_private_message?(user, type)
if (notification && notification.read?) || (post && post.seen?(user))
return skip_message(SkippedEmailLog.reason_types[:user_email_notification_already_read])
end
end
end
skip_reason_type = skip_email_for_post(post, user)
return skip_message(skip_reason_type) if skip_reason_type.present?
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# Make sure that mailer exists
raise Discourse::InvalidParameters.new("type=#{type}") unless UserNotifications.respond_to?(type)
email_args[:email_token] = email_token if email_token.present?
email_args[:new_email] = args[:new_email] || user.email if type.to_s == "notify_old_email" || type.to_s == "notify_old_email_add"
if args[:client_ip] && args[:user_agent]
email_args[:client_ip] = args[:client_ip]
email_args[:user_agent] = args[:user_agent]
end
if EmailLog.reached_max_emails?(user, type.to_s)
return skip_message(SkippedEmailLog.reason_types[:exceeded_emails_limit])
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end
if !EmailLog::CRITICAL_EMAIL_TYPES.include?(type.to_s) && user.user_stat.bounce_score >= SiteSetting.bounce_score_threshold
return skip_message(SkippedEmailLog.reason_types[:exceeded_bounces_limit])
end
if args[:user_history_id]
email_args[:user_history] = UserHistory.where(id: args[:user_history_id]).first
end
message = EmailLog.unique_email_per_post(post, user) do
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UserNotifications.public_send(type, user, email_args)
end
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# Update the to address if we have a custom one
message.to = to_address if message && to_address.present?
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[message, nil]
end
sidekiq_retry_in do |count, exception|
# retry in an hour when SMTP server is busy
# or use default sidekiq retry formula
case exception.wrapped
when Net::SMTPServerBusy
1.hour + (rand(30) * (count + 1))
else
::Jobs::UserEmail.seconds_to_delay(count)
end
end
# extracted from sidekiq
def self.seconds_to_delay(count)
(count**4) + 15 + (rand(30) * (count + 1))
end
private
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def skip_message(reason)
[nil, skip(reason)]
end
# If this email has a related post, don't send an email if it's been deleted or seen recently.
def skip_email_for_post(post, user)
if post
if post.topic.blank?
return SkippedEmailLog.reason_types[:user_email_topic_nil]
end
if post.user.blank?
return SkippedEmailLog.reason_types[:user_email_post_user_deleted]
end
if post.user_deleted?
return SkippedEmailLog.reason_types[:user_email_post_deleted]
end
if user.suspended? && (!post.user&.staff? || !post.user&.human?)
return SkippedEmailLog.reason_types[:user_email_user_suspended]
end
already_read = user.user_option.email_level != UserOption.email_level_types[:always] && PostTiming.exists?(topic_id: post.topic_id, post_number: post.post_number, user_id: user.id)
if already_read
SkippedEmailLog.reason_types[:user_email_already_read]
end
else
false
end
end
def skip(reason_type)
create_skipped_email_log(
email_type: @skip_context[:type],
to_address: @skip_context[:to_address],
user_id: @skip_context[:user_id],
post_id: @skip_context[:post_id],
reason_type: reason_type
)
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end
def always_email_private_message?(user, type)
type == :user_private_message && user.user_option.email_messages_level == UserOption.email_level_types[:always]
end
def always_email_regular?(user, type)
type != :user_private_message && user.user_option.email_level == UserOption.email_level_types[:always]
end
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end
end