mirror of
https://github.com/discourse/discourse.git
synced 2024-11-23 17:18:19 +08:00
e073451eae
For very fast-paced things (e.g. replying... indicators), 5s resolution is not great. This commit improves the resolution to 1 update per second.
79 lines
2.5 KiB
Ruby
79 lines
2.5 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class PresenceController < ApplicationController
|
|
skip_before_action :check_xhr
|
|
before_action :ensure_logged_in, only: [:update]
|
|
|
|
MAX_CHANNELS_PER_REQUEST ||= 50
|
|
|
|
def get
|
|
names = params.require(:channels)
|
|
raise Discourse::InvalidParameters.new(:channels) if !(names.is_a?(Array) && names.all? { |n| n.is_a? String })
|
|
|
|
names.uniq!
|
|
|
|
raise Discourse::InvalidParameters.new("Too many channels") if names.length > MAX_CHANNELS_PER_REQUEST
|
|
|
|
user_group_ids = if current_user
|
|
GroupUser.where(user_id: current_user.id).pluck("group_id")
|
|
else
|
|
[]
|
|
end
|
|
|
|
result = {}
|
|
names.each do |name|
|
|
channel = PresenceChannel.new(name)
|
|
if channel.can_view?(user_id: current_user&.id, group_ids: user_group_ids)
|
|
result[name] = PresenceChannelStateSerializer.new(channel.state, root: nil)
|
|
else
|
|
result[name] = nil
|
|
end
|
|
rescue PresenceChannel::NotFound
|
|
result[name] = nil
|
|
end
|
|
|
|
render json: result
|
|
end
|
|
|
|
def update
|
|
client_id = params[:client_id]
|
|
raise Discourse::InvalidParameters.new(:client_id) if !client_id.is_a?(String) || client_id.blank?
|
|
|
|
# JS client is designed to throttle to one request per second
|
|
# When no changes are being made, it makes one request every 30 seconds
|
|
RateLimiter.new(nil, "update-presence-#{current_user.id}", 20, 10.seconds).performed!
|
|
|
|
present_channels = params[:present_channels]
|
|
if present_channels && !(present_channels.is_a?(Array) && present_channels.all? { |c| c.is_a? String })
|
|
raise Discourse::InvalidParameters.new(:present_channels)
|
|
end
|
|
|
|
leave_channels = params[:leave_channels]
|
|
if leave_channels && !(leave_channels.is_a?(Array) && leave_channels.all? { |c| c.is_a? String })
|
|
raise Discourse::InvalidParameters.new(:leave_channels)
|
|
end
|
|
|
|
if present_channels && present_channels.length > MAX_CHANNELS_PER_REQUEST
|
|
raise Discourse::InvalidParameters.new("Too many present_channels")
|
|
end
|
|
|
|
response = {}
|
|
|
|
present_channels&.each do |name|
|
|
PresenceChannel.new(name).present(user_id: current_user&.id, client_id: params[:client_id])
|
|
response[name] = true
|
|
rescue PresenceChannel::NotFound, PresenceChannel::InvalidAccess
|
|
response[name] = false
|
|
end
|
|
|
|
leave_channels&.each do |name|
|
|
PresenceChannel.new(name).leave(user_id: current_user&.id, client_id: params[:client_id])
|
|
rescue PresenceChannel::NotFound
|
|
# Do nothing. Don't reveal that this channel doesn't exist
|
|
end
|
|
|
|
render json: response
|
|
end
|
|
|
|
end
|