Nuke message_bus_observer move to service class and classes

Secure all messages triggered by post creation and all user actions so they don't leak
(meaning, if you have a browser open and secure topics are created you will only get them if you are allowed to see them)
This commit is contained in:
Sam 2013-05-16 15:03:03 +10:00
parent bae2d252fa
commit e9ebadb414
13 changed files with 214 additions and 145 deletions

View File

@ -1,49 +0,0 @@
require_dependency 'discourse_observer'
# This class is responsible for notifying the message bus of various
# events.
class MessageBusObserver < DiscourseObserver
observe :notification, :user_action, :topic
def after_create_notification(notification)
refresh_notification_count(notification)
end
def after_destroy_notification(notification)
refresh_notification_count(notification)
end
def after_create_user_action(user_action)
MessageBus.publish("/users/#{user_action.user.username.downcase}", user_action.id)
end
def after_create_topic(topic)
# Don't publish invisible topics
return unless topic.visible?
return if topic.private_message?
topic.posters = topic.posters_summary
topic.posts_count = 1
topic_json = TopicListItemSerializer.new(topic).as_json
MessageBus.publish("/latest", topic_json)
# If it has a category, add it to the category views too
if topic.category.present?
MessageBus.publish("/category/#{topic.category.slug}", topic_json)
end
end
protected
def refresh_notification_count(notification)
user_id = notification.user.id
MessageBus.publish("/notification/#{user_id}",
{unread_notifications: notification.user.unread_notifications,
unread_private_messages: notification.user.unread_private_messages},
user_ids: [user_id] # only publish the notification to this user
)
end
end

View File

@ -10,6 +10,9 @@ class Notification < ActiveRecord::Base
scope :unread, lambda { where(read: false) }
scope :recent, lambda { order('created_at desc').limit(10) }
after_save :refresh_notification_count
after_destroy :refresh_notification_count
def self.types
@types ||= Enum.new(
:mentioned, :replied, :quoted, :edited, :liked, :private_message,
@ -74,5 +77,18 @@ class Notification < ActiveRecord::Base
Post.where(topic_id: topic_id, post_number: post_number).first
end
protected
def refresh_notification_count
user_id = user.id
MessageBus.publish("/notification/#{user_id}",
{unread_notifications: user.unread_notifications,
unread_private_messages: user.unread_private_messages},
user_ids: [user_id] # only publish the notification to this user
)
end
end

View File

@ -150,6 +150,19 @@ LEFT JOIN categories c on c.id = t.category_id
User.update_all('likes_received = likes_received + 1', id: user_id)
end
topic = Topic.includes(:category).where(id: hash[:target_topic_id]).first
# move into Topic perhaps
group_ids = nil
if topic && topic.category && topic.category.secure
group_ids = topic.category.groups.select("groups.id").map{|g| g.id}
end
MessageBus.publish("/users/#{action.user.username.downcase}",
action.id,
user_ids: [user_id],
group_ids: group_ids )
rescue ActiveRecord::RecordNotUnique
# can happen, don't care already logged
raise ActiveRecord::Rollback

View File

@ -55,7 +55,6 @@ module Discourse
config.active_record.observers = [
:user_email_observer,
:user_action_observer,
:message_bus_observer,
:post_alert_observer,
:search_observer
]

View File

@ -7,6 +7,11 @@ MessageBus.user_id_lookup do |env|
user.id if user
end
MessageBus.group_ids_lookup do |env|
user = CurrentUser.lookup_from_env(env)
user.groups.select('groups.id').map{|g| g.id} if user
end
MessageBus.on_connect do |site_id|
RailsMultisite::ConnectionManagement.establish_connection(db: site_id)
end

View File

@ -12,7 +12,6 @@ class Autospec::Runner
watch(%r{^spec/.+_spec\.rb$})
watch(%r{^lib/(.+)\.rb$}) { |m| "spec/components/#{m[1]}_spec.rb" }
watch('spec/spec_helper.rb') { "spec" }
# Rails example
watch(%r{^app/(.+)\.rb$}) { |m| "spec/#{m[1]}_spec.rb" }
@ -24,6 +23,14 @@ class Autospec::Runner
# Capybara request specs
watch(%r{^app/views/(.+)/.*\.(erb|haml)$}) { |m| "spec/requests/#{m[1]}_spec.rb" }
RELOAD_MATCHERS = Set.new
def self.watch_reload(pattern)
RELOAD_MATCHERS << pattern
end
watch_reload('spec/spec_helper.rb')
watch_reload('config/(.*).rb')
def self.run(opts={})
self.new.run(opts)
@ -156,6 +163,15 @@ class Autospec::Runner
specs = []
hit = false
files.each do |file|
RELOAD_MATCHERS.each do |k|
if k.match(file)
spork_service.abort
stop_spork
sleep 1
start_spork
return
end
end
MATCHERS.each do |k,v|
if m = k.match(file)
hit = true

View File

@ -41,45 +41,12 @@ class PostCreator
def create
topic = nil
post = nil
new_topic = false
Post.transaction do
if @opts[:topic_id].blank?
topic_params = {title: @opts[:title], user_id: @user.id, last_post_user_id: @user.id}
topic_params[:archetype] = @opts[:archetype] if @opts[:archetype].present?
topic_params[:subtype] = @opts[:subtype] if @opts[:subtype].present?
guardian.ensure_can_create!(Topic)
category = Category.where(name: @opts[:category]).first
topic_params[:category_id] = category.id if category.present?
topic_params[:meta_data] = @opts[:meta_data] if @opts[:meta_data].present?
topic = Topic.new(topic_params)
if @opts[:auto_close_days]
guardian.ensure_can_moderate!(topic)
topic.auto_close_days = @opts[:auto_close_days]
end
if @opts[:archetype] == Archetype.private_message
topic.subtype = TopicSubtype.user_to_user unless topic.subtype
unless @opts[:target_usernames].present? || @opts[:target_group_names].present?
topic.errors.add(:archetype, :cant_send_pm)
@errors = topic.errors
raise ActiveRecord::Rollback.new
end
add_users(topic,@opts[:target_usernames])
add_groups(topic,@opts[:target_group_names])
topic.topic_allowed_users.build(user_id: @user.id)
end
unless topic.save
@errors = topic.errors
raise ActiveRecord::Rollback.new
end
topic = create_topic
new_topic = true
else
topic = Topic.where(id: @opts[:topic_id]).first
guardian.ensure_can_create!(Post, topic)
@ -112,7 +79,12 @@ class PostCreator
# send a mail to notify users in case of a private message
if topic.private_message?
topic.allowed_users.where(["users.email_private_messages = true and users.id != ?", @user.id]).each do |u|
Jobs.enqueue_in(SiteSetting.email_time_window_mins.minutes, :user_email, type: :private_message, user_id: u.id, post_id: post.id)
Jobs.enqueue_in(SiteSetting.email_time_window_mins.minutes,
:user_email,
type: :private_message,
user_id: u.id,
post_id: post.id
)
end
clear_possible_flags(topic) if post.post_number > 1 && topic.user_id != post.user_id
@ -129,12 +101,16 @@ class PostCreator
@user.last_posted_at = post.created_at
@user.save!
# Publish the post in the message bus
MessageBus.publish("/topic/#{post.topic_id}",
id: post.id,
created_at: post.created_at,
user: BasicUserSerializer.new(post.user).as_json(root: false),
post_number: post.post_number)
if post.post_number > 1
MessageBus.publish("/topic/#{post.topic_id}",{
id: post.id,
created_at: post.created_at,
user: BasicUserSerializer.new(post.user).as_json(root: false),
post_number: post.post_number
},
group_ids: secure_group_ids(topic)
)
end
# Advance the draft sequence
post.advance_draft_sequence
@ -147,7 +123,10 @@ class PostCreator
# been comitted.
topic_id = @opts[:topic_id] || topic.try(:id)
Jobs.enqueue(:feature_topic_users, topic_id: topic.id) if topic_id.present?
post.trigger_post_process if post.present?
if post
post.trigger_post_process
after_topic_create(topic) if new_topic
end
post
end
@ -160,6 +139,74 @@ class PostCreator
protected
def secure_group_ids(topic)
@secure_group_ids ||= if topic.category && topic.category.secure?
topic.category.groups.select("groups.id").map{|g| g.id}
end
end
def after_topic_create(topic)
# Don't publish invisible topics
return unless topic.visible?
return if topic.private_message?
topic.posters = topic.posters_summary
topic.posts_count = 1
topic_json = TopicListItemSerializer.new(topic).as_json
group_ids = secure_group_ids(topic)
MessageBus.publish("/latest", topic_json, group_ids: group_ids)
# If it has a category, add it to the category views too
if topic.category
MessageBus.publish("/category/#{topic.category.slug}", topic_json, group_ids: group_ids)
end
end
def create_topic
topic_params = {title: @opts[:title], user_id: @user.id, last_post_user_id: @user.id}
topic_params[:archetype] = @opts[:archetype] if @opts[:archetype].present?
topic_params[:subtype] = @opts[:subtype] if @opts[:subtype].present?
guardian.ensure_can_create!(Topic)
category = Category.where(name: @opts[:category]).first
topic_params[:category_id] = category.id if category.present?
topic_params[:meta_data] = @opts[:meta_data] if @opts[:meta_data].present?
topic = Topic.new(topic_params)
if @opts[:auto_close_days]
guardian.ensure_can_moderate!(topic)
topic.auto_close_days = @opts[:auto_close_days]
end
if @opts[:archetype] == Archetype.private_message
topic.subtype = TopicSubtype.user_to_user unless topic.subtype
unless @opts[:target_usernames].present? || @opts[:target_group_names].present?
topic.errors.add(:archetype, :cant_send_pm)
@errors = topic.errors
raise ActiveRecord::Rollback.new
end
add_users(topic,@opts[:target_usernames])
add_groups(topic,@opts[:target_group_names])
topic.topic_allowed_users.build(user_id: @user.id)
end
unless topic.save
@errors = topic.errors
raise ActiveRecord::Rollback.new
end
topic
end
def clear_possible_flags(topic)
# at this point we know the topic is a PM and has been replied to ... check if we need to clear any flags
#

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@ -31,12 +31,53 @@ describe PostCreator do
end
context 'success' do
it 'creates a topic' do
lambda { creator.create }.should change(Topic, :count).by(1)
it 'generates the correct messages for a secure topic' do
admin = Fabricate(:admin)
cat = Fabricate(:category)
cat.deny(:all)
cat.allow(Group[:admins])
cat.save
created_post = nil
reply = nil
messages = MessageBus.track_publish do
created_post = PostCreator.new(admin, basic_topic_params.merge(category: cat.name)).create
reply = PostCreator.new(admin, raw: 'this is my test reply 123 testing', topic_id: created_post.topic_id).create
end
topic_id = created_post.topic_id
messages.map{|m| m.channel}.sort.should == [ "/latest",
"/users/#{admin.username}",
"/users/#{admin.username}",
"/topic/#{created_post.topic_id}",
"/category/#{cat.slug}"
].sort
admin_ids = [Group[:admins].id]
messages.any?{|m| m.group_ids != admin_ids}.should be_false
end
it 'returns a post' do
creator.create.is_a?(Post).should be_true
it 'generates the correct messages for a normal topic' do
p = nil
messages = MessageBus.track_publish do
p = creator.create
topic_id = p.topic_id
end
latest = messages.find{|m| m.channel == "/latest"}
latest.should_not be_nil
user_action = messages.find{|m| m.channel == "/users/#{p.user.username}"}
user_action.should_not be_nil
messages.length.should == 2
end
it 'extracts links from the post' do
@ -44,20 +85,8 @@ describe PostCreator do
creator.create
end
it 'enqueues the post on the message bus' do
MessageBus.stubs(:publish).with("/users/#{user.username}", anything)
MessageBus.expects(:publish).with("/topic/#{topic.id}", instance_of(Hash))
PostCreator.new(user, raw: basic_topic_params[:raw], topic_id: topic.id)
end
it 'features topic users' do
Jobs.stubs(:enqueue).with(:process_post, anything)
Jobs.expects(:enqueue).with(:feature_topic_users, has_key(:topic_id))
creator.create
end
it 'queues up post processing job when saved' do
Jobs.stubs(:enqueue).with(:feature_topic_users, has_key(:topic_id))
Jobs.expects(:enqueue).with(:feature_topic_users, has_key(:topic_id))
Jobs.expects(:enqueue).with(:process_post, has_key(:post_id))
creator.create
end

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@ -1,18 +0,0 @@
require 'spec_helper'
describe MessageBusObserver do
context 'after create topic' do
after do
@topic = Fabricate(:topic)
end
it 'publishes the topic to the list' do
end
end
end

View File

@ -90,7 +90,7 @@ describe Notification do
describe 'message bus' do
it 'updates the notification count on create' do
MessageBusObserver.any_instance.expects(:refresh_notification_count).with(instance_of(Notification))
Notification.any_instance.expects(:refresh_notification_count).returns(nil)
Fabricate(:notification)
end
@ -99,7 +99,7 @@ describe Notification do
let!(:notification) { Fabricate(:notification) }
it 'updates the notification count on destroy' do
MessageBusObserver.any_instance.expects(:refresh_notification_count).with(instance_of(Notification))
Notification.any_instance.expects(:refresh_notification_count).returns(nil)
notification.destroy
end

View File

@ -180,14 +180,6 @@ describe Topic do
end
context 'message bus' do
it 'calls the message bus observer after create' do
ActiveRecord::Base.observers.enable :all
MessageBusObserver.any_instance.expects(:after_create_topic).with(instance_of(Topic))
Fabricate(:topic)
end
end
context 'post_numbers' do
let!(:topic) { Fabricate(:topic) }
let!(:p1) { Fabricate(:post, topic: topic, user: topic.user) }

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@ -91,11 +91,6 @@ describe UserAction do
end
end
it 'calls the message bus observer' do
MessageBusObserver.any_instance.expects(:after_create_user_action).with(instance_of(UserAction))
Fabricate(:user_action)
end
describe 'when user likes' do
let!(:post) { Fabricate(:post) }

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@ -119,6 +119,30 @@ def build(*args)
Fabricate.build(*args)
end
module MessageBus::DiagnosticsHelper
def publish(channel, data, opts = nil)
id = super(channel, data, opts)
if @tracking
m = MessageBus::Message.new(-1, id, channel, data)
m.user_ids = opts[:user_ids] if opts
m.group_ids = opts[:group_ids] if opts
@tracking << m
end
id
end
def track_publish
@tracking = tracking = []
yield
@tracking = nil
tracking
end
end
module MessageBus
extend MessageBus::DiagnosticsHelper
end
# --- Instructions ---
# Sort the contents of this file into a Spork.prefork and a Spork.each_run
# block.