discourse/app/services/spam_rule/auto_silence.rb

90 lines
2.5 KiB
Ruby

class SpamRule::AutoSilence
attr_reader :group_message
def initialize(user, post = nil)
@user = user
@post = post
end
def perform
I18n.with_locale(SiteSetting.default_locale) do
silence_user if should_autosilence?
end
end
def self.prevent_posting?(user)
user.blank? || user.silenced? || new(user).should_autosilence?
end
def should_autosilence?
return false if @user.blank?
return false if @user.staged?
return false if @user.has_trust_level?(TrustLevel[1])
if SiteSetting.num_spam_flags_to_silence_new_user > 0 &&
SiteSetting.num_users_to_silence_new_user > 0 &&
num_spam_flags_against_user >= SiteSetting.num_spam_flags_to_silence_new_user &&
num_users_who_flagged_spam_against_user >= SiteSetting.num_users_to_silence_new_user
return true
end
if SiteSetting.num_tl3_flags_to_silence_new_user > 0 &&
SiteSetting.num_tl3_users_to_silence_new_user > 0 &&
num_tl3_flags_against_user >= SiteSetting.num_tl3_flags_to_silence_new_user &&
num_tl3_users_who_flagged >= SiteSetting.num_tl3_users_to_silence_new_user
return true
end
false
end
def num_spam_flags_against_user
Post.where(user_id: @user.id).sum(:spam_count)
end
def num_users_who_flagged_spam_against_user
post_ids = Post.where('user_id = ? and spam_count > 0', @user.id).pluck(:id)
return 0 if post_ids.empty?
PostAction.spam_flags.where(post_id: post_ids).pluck(:user_id).uniq.size
end
def num_tl3_flags_against_user
if flagged_post_ids.empty?
0
else
PostAction.where(post_id: flagged_post_ids).joins(:user).where('users.trust_level >= ?', 3).count
end
end
def num_tl3_users_who_flagged
if flagged_post_ids.empty?
0
else
PostAction.where(post_id: flagged_post_ids).joins(:user).where('users.trust_level >= ?', 3).pluck(:user_id).uniq.size
end
end
def flagged_post_ids
Post.where(user_id: @user.id)
.where('spam_count > 0 OR off_topic_count > 0 OR inappropriate_count > 0')
.pluck(:id)
end
def silence_user
Post.transaction do
silencer = UserSilencer.new(
@user,
Discourse.system_user,
message: :too_many_spam_flags,
post_id: @post&.id
)
if silencer.silence && SiteSetting.notify_mods_when_user_silenced
@group_message = GroupMessage.create(Group[:moderators].name, :user_automatically_silenced, user: @user, limit_once_per: false)
end
end
end
end