discourse/plugins/chat/app/controllers/api/hints_controller.rb
Roman Rizzi 9c8043a4d2
FEATURE: Enforce mention limits for chat messages (#19034)
* FEATURE: Enforce mention limits for chat messages

The first part of these changes adds a new setting called `max_mentions_per_chat_message`, which skips notifications when the message contains too many mentions. It also respects the `max_users_notified_per_group_mention` setting
and skips notifications if expanding a group mention would exceed it.

We also include a new component to display JIT warning for these limits to the user while composing a message.

* Simplify ignoring/muting filter in chat_notifier

* Post-send warnings for unsent warnings

* Improve pluralization

* Address review feedback

* Fix test

* Address second feedback round

* Third round of feedback

Co-authored-by: Joffrey JAFFEUX <j.jaffeux@gmail.com>
2022-12-06 14:54:04 -03:00

40 lines
1.1 KiB
Ruby

# frozen_string_literal: true
class Chat::Api::HintsController < ApplicationController
before_action :ensure_logged_in
def check_group_mentions
RateLimiter.new(current_user, "group_mention_hints", 5, 10.seconds).performed!
group_names = params[:mentions]
raise Discourse::InvalidParameters.new(:mentions) if group_names.blank?
visible_groups = Group
.where("LOWER(name) IN (?)", group_names)
.visible_groups(current_user)
.pluck(:name)
mentionable_groups = filter_mentionable_groups(visible_groups)
result = {
unreachable: visible_groups - mentionable_groups.map(&:name),
over_members_limit: mentionable_groups.select { |g| g.user_count > SiteSetting.max_users_notified_per_group_mention }.map(&:name),
}
result[:invalid] = (group_names - result[:unreachable]) - result[:over_members_limit]
render json: result
end
private
def filter_mentionable_groups(group_names)
return [] if group_names.empty?
Group
.select(:name, :user_count)
.where(name: group_names)
.mentionable(current_user, include_public: false)
end
end