discourse/app/jobs/regular/user_email.rb

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require_dependency 'email/sender'
require_dependency 'user_notifications'
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module Jobs
# Asynchronously send an email to a user
class UserEmail < Jobs::Base
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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post = nil
notification = nil
type = args[:type]
user = User.find_by(id: args[:user_id])
to_address = args[:to_address].presence || user.try(:email).presence || "no_email_found"
set_skip_context(type, args[:user_id], to_address, args[:post_id])
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return skip(I18n.t("email_log.no_user", user_id: args[:user_id])) unless user
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if args[:post_id].present?
post = Post.find_by(id: args[:post_id])
return skip(I18n.t('email_log.post_not_found', post_id: args[:post_id])) unless post.present?
end
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if args[:notification_id].present?
notification = Notification.find_by(id: args[:notification_id])
end
message, skip_reason = message_for_email(
user,
post,
type,
notification,
args
)
if message
Email::Sender.new(message, type, user).send
else
skip_reason
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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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return skip_message(I18n.t("email_log.anonymous_user")) if user.anonymous?
if user.suspended? && !["user_private_message", "account_suspended"].include?(type.to_s)
return skip_message(I18n.t("email_log.suspended_not_pm"))
end
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return if user.staged && type.to_s == "digest"
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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 user.user_option.email_always || user.staged
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email_args = {}
if post || notification || notification_type
return skip_message(I18n.t('email_log.seen_recently')) if seen_recently && !user.suspended?
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])
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# no need to log a reason when the mail was already sent via the mailing list job
return [nil, nil]
end
unless user.user_option.email_always?
if (notification && notification.read?) || (post && post.seen?(user))
return skip_message(I18n.t('email_log.notification_already_read'))
end
end
end
skip_reason = skip_email_for_post(post, user)
return skip_message(skip_reason) if skip_reason.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] = user.email if type.to_s == "notify_old_email"
if EmailLog.reached_max_emails?(user, type.to_s)
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return skip_message(I18n.t('email_log.exceeded_emails_limit'))
end
if !EmailLog::CRITICAL_EMAIL_TYPES.include?(type.to_s) && user.user_stat.bounce_score >= SiteSetting.bounce_score_threshold
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return skip_message(I18n.t('email_log.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
UserNotifications.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)
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(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
return I18n.t('email_log.topic_nil') if post.topic.blank?
return I18n.t('email_log.post_user_deleted') if post.user.blank?
return I18n.t('email_log.post_deleted') if post.user_deleted?
return I18n.t('email_log.user_suspended') if user.suspended? && !post.user&.staff?
already_read = !user.user_option.email_always? && PostTiming.exists?(topic_id: post.topic_id, post_number: post.post_number, user_id: user.id)
return I18n.t('email_log.already_read') if already_read
else
false
end
end
def skip(reason)
EmailLog.create!(
email_type: @skip_context[:type],
to_address: @skip_context[:to_address],
user_id: @skip_context[:user_id],
post_id: @skip_context[:post_id],
skipped: true,
skipped_reason: "[UserEmail] #{reason}",
)
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end
end
end