discourse/plugins/discourse-presence/plugin.rb

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# frozen_string_literal: true
# name: discourse-presence
# about: Show which users are replying to a topic, or editing a post
# version: 2.0
# authors: André Pereira, David Taylor, tgxworld
# url: https://github.com/discourse/discourse/tree/main/plugins/discourse-presence
enabled_site_setting :presence_enabled
hide_plugin if self.respond_to?(:hide_plugin)
register_asset 'stylesheets/presence.scss'
after_initialize do
register_presence_channel_prefix("discourse-presence") do |channel_name|
if topic_id = channel_name[/\/discourse-presence\/reply\/(\d+)/, 1]
topic = Topic.find(topic_id)
config = PresenceChannel::Config.new
if topic.private_message?
config.allowed_user_ids = topic.allowed_users.pluck(:id)
config.allowed_group_ids = topic.allowed_groups.pluck(:group_id) + [::Group::AUTO_GROUPS[:staff]]
elsif secure_group_ids = topic.secure_group_ids
config.allowed_group_ids = secure_group_ids + [::Group::AUTO_GROUPS[:admins]]
else
# config.public=true would make data available to anon, so use the tl0 group instead
config.allowed_group_ids = [ ::Group::AUTO_GROUPS[:trust_level_0] ]
end
config
elsif topic_id = channel_name[/\/discourse-presence\/whisper\/(\d+)/, 1]
Topic.find(topic_id) # Just ensure it exists
PresenceChannel::Config.new(allowed_group_ids: [::Group::AUTO_GROUPS[:staff]])
elsif post_id = channel_name[/\/discourse-presence\/edit\/(\d+)/, 1]
post = Post.find(post_id)
topic = Topic.find(post.topic_id)
config = PresenceChannel::Config.new
config.allowed_group_ids = [ ::Group::AUTO_GROUPS[:staff] ]
# Locked and whisper posts are staff only
next config if post.locked? || post.whisper?
config.allowed_user_ids = [ post.user_id ]
if topic.private_message? && post.wiki
# Ignore trust level and just publish to all allowed groups since
# trying to figure out which users in the allowed groups have
# the necessary trust levels can lead to a large array of user ids
# if the groups are big.
config.allowed_user_ids += topic.allowed_users.pluck(:id)
config.allowed_group_ids += topic.allowed_groups.pluck(:id)
elsif post.wiki
config.allowed_group_ids << Group::AUTO_GROUPS[:"trust_level_#{SiteSetting.min_trust_to_edit_wiki_post}"]
end
if !topic.private_message? && SiteSetting.trusted_users_can_edit_others?
config.allowed_group_ids << Group::AUTO_GROUPS[:trust_level_4]
end
if SiteSetting.enable_category_group_moderation? && group_id = topic.category&.reviewable_by_group_id
config.allowed_group_ids << group_id
end
config
end
rescue ActiveRecord::RecordNotFound
nil
end
end