Refactor feed manager (#14761)

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Eugen Rochko 2020-09-08 03:41:16 +02:00 committed by GitHub
parent 169f9105ef
commit 65760f59df
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9 changed files with 236 additions and 124 deletions

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@ -6,31 +6,54 @@ class FeedManager
include Singleton
include Redisable
# Maximum number of items stored in a single feed
MAX_ITEMS = 400
# Must be <= MAX_ITEMS or the tracking sets will grow forever
# Number of items in the feed since last reblog of status
# before the new reblog will be inserted. Must be <= MAX_ITEMS
# or the tracking sets will grow forever
REBLOG_FALLOFF = 40
# Execute block for every active account
# @yield [Account]
# @return [void]
def with_active_accounts(&block)
Account.joins(:user).where('users.current_sign_in_at > ?', User::ACTIVE_DURATION.ago).find_each(&block)
end
# Redis key of a feed
# @param [Symbol] type
# @param [Integer] id
# @param [Symbol] subtype
# @return [String]
def key(type, id, subtype = nil)
return "feed:#{type}:#{id}" unless subtype
"feed:#{type}:#{id}:#{subtype}"
end
def filter?(timeline_type, status, receiver_id)
if timeline_type == :home
filter_from_home?(status, receiver_id, build_crutches(receiver_id, [status]))
elsif timeline_type == :mentions
filter_from_mentions?(status, receiver_id)
# Check if the status should not be added to a feed
# @param [Symbol] timeline_type
# @param [Status] status
# @param [Account|List] receiver
# @return [Boolean]
def filter?(timeline_type, status, receiver)
case timeline_type
when :home
filter_from_home?(status, receiver.id, build_crutches(receiver.id, [status]))
when :list
filter_from_list?(status, receiver) || filter_from_home?(status, receiver.account_id, build_crutches(receiver.account_id, [status]))
when :mentions
filter_from_mentions?(status, receiver.id)
else
false
end
end
# Add a status to a home feed and send a streaming API update
# @param [Account] account
# @param [Status] status
# @return [Boolean]
def push_to_home(account, status)
return false unless add_to_feed(:home, account.id, status, account.user&.aggregates_reblogs?)
@ -39,6 +62,10 @@ class FeedManager
true
end
# Remove a status from a home feed and send a streaming API update
# @param [Account] account
# @param [Status] status
# @return [Boolean]
def unpush_from_home(account, status)
return false unless remove_from_feed(:home, account.id, status, account.user&.aggregates_reblogs?)
@ -46,21 +73,22 @@ class FeedManager
true
end
# Add a status to a list feed and send a streaming API update
# @param [List] list
# @param [Status] status
# @return [Boolean]
def push_to_list(list, status)
if status.reply? && status.in_reply_to_account_id != status.account_id
should_filter = status.in_reply_to_account_id != list.account_id
should_filter &&= !list.show_all_replies?
should_filter &&= !(list.show_list_replies? && ListAccount.where(list_id: list.id, account_id: status.in_reply_to_account_id).exists?)
return false if should_filter
end
return false unless add_to_feed(:list, list.id, status, list.account.user&.aggregates_reblogs?)
return false if filter_from_list?(status, list) || !add_to_feed(:list, list.id, status, list.account.user&.aggregates_reblogs?)
trim(:list, list.id)
PushUpdateWorker.perform_async(list.account_id, status.id, "timeline:list:#{list.id}") if push_update_required?("timeline:list:#{list.id}")
true
end
# Remove a status from a list feed and send a streaming API update
# @param [List] list
# @param [Status] status
# @return [Boolean]
def unpush_from_list(list, status)
return false unless remove_from_feed(:list, list.id, status, list.account.user&.aggregates_reblogs?)
@ -68,34 +96,11 @@ class FeedManager
true
end
def trim(type, account_id)
timeline_key = key(type, account_id)
reblog_key = key(type, account_id, 'reblogs')
# Remove any items past the MAX_ITEMS'th entry in our feed
redis.zremrangebyrank(timeline_key, 0, -(FeedManager::MAX_ITEMS + 1))
# Get the score of the REBLOG_FALLOFF'th item in our feed, and stop
# tracking anything after it for deduplication purposes.
falloff_rank = FeedManager::REBLOG_FALLOFF
falloff_range = redis.zrevrange(timeline_key, falloff_rank, falloff_rank, with_scores: true)
falloff_score = falloff_range&.first&.last&.to_i
return if falloff_score.nil?
# Get any reblogs we might have to clean up after.
redis.zrangebyscore(reblog_key, 0, falloff_score).each do |reblogged_id|
# Remove it from the set of reblogs we're tracking *first* to avoid races.
redis.zrem(reblog_key, reblogged_id)
# Just drop any set we might have created to track additional reblogs.
# This means that if this reblog is deleted, we won't automatically insert
# another reblog, but also that any new reblog can be inserted into the
# feed.
redis.del(key(type, account_id, "reblogs:#{reblogged_id}"))
end
end
def merge_into_timeline(from_account, into_account)
# Fill a home feed with an account's statuses
# @param [Account] from_account
# @param [Account] into_account
# @return [void]
def merge_into_home(from_account, into_account)
timeline_key = key(:home, into_account.id)
aggregate = into_account.user&.aggregates_reblogs?
query = from_account.statuses.where(visibility: [:public, :unlisted, :private]).includes(:preloadable_poll, reblog: :account).limit(FeedManager::MAX_ITEMS / 4)
@ -117,7 +122,37 @@ class FeedManager
trim(:home, into_account.id)
end
def unmerge_from_timeline(from_account, into_account)
# Fill a list feed with an account's statuses
# @param [Account] from_account
# @param [List] list
# @return [void]
def merge_into_list(from_account, list)
timeline_key = key(:list, list.id)
aggregate = list.account.user&.aggregates_reblogs?
query = from_account.statuses.where(visibility: [:public, :unlisted, :private]).includes(:preloadable_poll, reblog: :account).limit(FeedManager::MAX_ITEMS / 4)
if redis.zcard(timeline_key) >= FeedManager::MAX_ITEMS / 4
oldest_home_score = redis.zrange(timeline_key, 0, 0, with_scores: true).first.last.to_i
query = query.where('id > ?', oldest_home_score)
end
statuses = query.to_a
crutches = build_crutches(list.account_id, statuses)
statuses.each do |status|
next if filter_from_home?(status, list.account_id, crutches) || filter_from_list?(status, list)
add_to_feed(:list, list.id, status, aggregate)
end
trim(:list, list.id)
end
# Remove an account's statuses from a home feed
# @param [Account] from_account
# @param [Account] into_account
# @return [void]
def unmerge_from_home(from_account, into_account)
timeline_key = key(:home, into_account.id)
oldest_home_score = redis.zrange(timeline_key, 0, 0, with_scores: true)&.first&.last&.to_i || 0
@ -126,14 +161,31 @@ class FeedManager
end
end
def clear_from_timeline(account, target_account)
# Clear from timeline all statuses from or mentionning target_account
# Remove an account's statuses from a list feed
# @param [Account] from_account
# @param [List] list
# @return [void]
def unmerge_from_list(from_account, list)
timeline_key = key(:list, list.id)
oldest_list_score = redis.zrange(timeline_key, 0, 0, with_scores: true)&.first&.last&.to_i || 0
from_account.statuses.select('id, reblog_of_id').where('id > ?', oldest_list_score).reorder(nil).find_each do |status|
remove_from_feed(:list, list.id, status, list.account.user&.aggregates_reblogs?)
end
end
# Clear all statuses from or mentioning target_account from a home feed
# @param [Account] account
# @param [Account] target_account
# @return [void]
def clear_from_home(account, target_account)
timeline_key = key(:home, account.id)
timeline_status_ids = redis.zrange(timeline_key, 0, -1)
statuses = Status.where(id: timeline_status_ids).select(:id, :reblog_of_id, :account_id).to_a
reblogged_ids = Status.where(id: statuses.map(&:reblog_of_id).compact, account: target_account).pluck(:id)
with_mentions_ids = Mention.active.where(status_id: statuses.flat_map { |s| [s.id, s.reblog_of_id] }.compact, account: target_account).pluck(:status_id)
target_statuses = statuses.filter do |status|
target_statuses = statuses.select do |status|
status.account_id == target_account.id || reblogged_ids.include?(status.reblog_of_id) || with_mentions_ids.include?(status.id) || with_mentions_ids.include?(status.reblog_of_id)
end
@ -142,7 +194,10 @@ class FeedManager
end
end
def populate_feed(account)
# Populate home feed of account from scratch
# @param [Account] account
# @return [void]
def populate_home(account)
limit = FeedManager::MAX_ITEMS / 2
aggregate = account.user&.aggregates_reblogs?
timeline_key = key(:home, account.id)
@ -177,15 +232,59 @@ class FeedManager
private
def push_update_required?(timeline_id)
redis.exists?("subscribed:#{timeline_id}")
# Trim a feed to maximum size by removing older items
# @param [Symbol] type
# @param [Integer] timeline_id
# @return [void]
def trim(type, timeline_id)
timeline_key = key(type, timeline_id)
reblog_key = key(type, timeline_id, 'reblogs')
# Remove any items past the MAX_ITEMS'th entry in our feed
redis.zremrangebyrank(timeline_key, 0, -(FeedManager::MAX_ITEMS + 1))
# Get the score of the REBLOG_FALLOFF'th item in our feed, and stop
# tracking anything after it for deduplication purposes.
falloff_rank = FeedManager::REBLOG_FALLOFF
falloff_range = redis.zrevrange(timeline_key, falloff_rank, falloff_rank, with_scores: true)
falloff_score = falloff_range&.first&.last&.to_i
return if falloff_score.nil?
# Get any reblogs we might have to clean up after.
redis.zrangebyscore(reblog_key, 0, falloff_score).each do |reblogged_id|
# Remove it from the set of reblogs we're tracking *first* to avoid races.
redis.zrem(reblog_key, reblogged_id)
# Just drop any set we might have created to track additional reblogs.
# This means that if this reblog is deleted, we won't automatically insert
# another reblog, but also that any new reblog can be inserted into the
# feed.
redis.del(key(type, timeline_id, "reblogs:#{reblogged_id}"))
end
end
# Check if there is a streaming API client connected
# for the given feed
# @param [String] timeline_key
# @return [Boolean]
def push_update_required?(timeline_key)
redis.exists?("subscribed:#{timeline_key}")
end
# Check if the account is blocking or muting any of the given accounts
# @param [Integer] receiver_id
# @param [Array<Integer>] account_ids
# @param [Symbol] context
def blocks_or_mutes?(receiver_id, account_ids, context)
Block.where(account_id: receiver_id, target_account_id: account_ids).any? ||
(context == :home ? Mute.where(account_id: receiver_id, target_account_id: account_ids).any? : Mute.where(account_id: receiver_id, target_account_id: account_ids, hide_notifications: true).any?)
end
# Check if status should not be added to the home feed
# @param [Status] status
# @param [Integer] receiver_id
# @param [Hash] crutches
# @return [Boolean]
def filter_from_home?(status, receiver_id, crutches)
return false if receiver_id == status.account_id
return true if status.reply? && (status.in_reply_to_id.nil? || status.in_reply_to_account_id.nil?)
@ -218,6 +317,11 @@ class FeedManager
false
end
# Check if status should not be added to the mentions feed
# @see NotifyService
# @param [Status] status
# @param [Integer] receiver_id
# @return [Boolean]
def filter_from_mentions?(status, receiver_id)
return true if receiver_id == status.account_id
return true if phrase_filtered?(status, receiver_id, :notifications)
@ -234,6 +338,27 @@ class FeedManager
should_filter
end
# Check if status should not be added to the list feed
# @param [Status] status
# @param [List] list
# @return [Boolean]
def filter_from_list?(status, list)
if status.reply? && status.in_reply_to_account_id != status.account_id
should_filter = status.in_reply_to_account_id != list.account_id
should_filter &&= !list.show_all_replies?
should_filter &&= !(list.show_list_replies? && ListAccount.where(list_id: list.id, account_id: status.in_reply_to_account_id).exists?)
return !!should_filter
end
false
end
# Check if the status hits a phrase filter
# @param [Status] status
# @param [Integer] receiver_id
# @param [Symbol] context
# @return [Boolean]
def phrase_filtered?(status, receiver_id, context)
active_filters = Rails.cache.fetch("filters:#{receiver_id}") { CustomFilter.where(account_id: receiver_id).active_irreversible.to_a }.to_a
@ -269,6 +394,11 @@ class FeedManager
# added, and false if it was not added to the feed. Note that this is
# an internal helper: callers must call trim or push updates if
# either action is appropriate.
# @param [Symbol] timeline_type
# @param [Integer] account_id
# @param [Status] status
# @param [Boolean] aggregate_reblogs
# @return [Boolean]
def add_to_feed(timeline_type, account_id, status, aggregate_reblogs = true)
timeline_key = key(timeline_type, account_id)
reblog_key = key(timeline_type, account_id, 'reblogs')
@ -312,6 +442,11 @@ class FeedManager
# with reblogs, and returning true if a status was removed. As with
# `add_to_feed`, this does not trigger push updates, so callers must
# do so if appropriate.
# @param [Symbol] timeline_type
# @param [Integer] account_id
# @param [Status] status
# @param [Boolean] aggregate_reblogs
# @return [Boolean]
def remove_from_feed(timeline_type, account_id, status, aggregate_reblogs = true)
timeline_key = key(timeline_type, account_id)
reblog_key = key(timeline_type, account_id, 'reblogs')
@ -346,6 +481,11 @@ class FeedManager
redis.zrem(timeline_key, status.id)
end
# Pre-fetch various objects and relationships for given statuses that
# are going to be checked by the filtering methods
# @param [Integer] receiver_id
# @param [Array<Status>] statuses
# @return [Hash]
def build_crutches(receiver_id, statuses)
crutches = {}

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@ -13,7 +13,7 @@ class AfterBlockService < BaseService
private
def clear_home_feed!
FeedManager.instance.clear_from_timeline(@account, @target_account)
FeedManager.instance.clear_from_home(@account, @target_account)
end
def clear_conversations!

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@ -13,15 +13,13 @@ class NotifyService < BaseService
push_to_conversation! if direct_message?
send_email! if email_enabled?
rescue ActiveRecord::RecordInvalid
# rubocop:disable Style/RedundantReturn
return
# rubocop:enable Style/RedundantReturn
nil
end
private
def blocked_mention?
FeedManager.instance.filter?(:mentions, @notification.mention.status, @recipient.id)
FeedManager.instance.filter?(:mentions, @notification.mention.status, @recipient)
end
def blocked_favourite?

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@ -2,7 +2,7 @@
class PrecomputeFeedService < BaseService
def call(account)
FeedManager.instance.populate_feed(account)
FeedManager.instance.populate_home(account)
ensure
Redis.current.del("account:#{account.id}:regeneration")
end

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@ -27,9 +27,12 @@ class FeedInsertWorker
end
def feed_filtered?
# Note: Lists are a variation of home, so the filtering rules
# of home apply to both
FeedManager.instance.filter?(:home, @status, @follower.id)
case @type
when :home
FeedManager.instance.filter?(:home, @status, @follower)
when :list
FeedManager.instance.filter?(:list, @status, @list)
end
end
def perform_push

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@ -6,6 +6,8 @@ class MergeWorker
sidekiq_options queue: 'pull'
def perform(from_account_id, into_account_id)
FeedManager.instance.merge_into_timeline(Account.find(from_account_id), Account.find(into_account_id))
FeedManager.instance.merge_into_home(Account.find(from_account_id), Account.find(into_account_id))
rescue ActiveRecord::RecordNotFound
true
end
end

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@ -4,9 +4,8 @@ class MuteWorker
include Sidekiq::Worker
def perform(account_id, target_account_id)
FeedManager.instance.clear_from_timeline(
Account.find(account_id),
Account.find(target_account_id)
)
FeedManager.instance.clear_from_home(Account.find(account_id), Account.find(target_account_id))
rescue ActiveRecord::RecordNotFound
true
end
end

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@ -6,6 +6,8 @@ class UnmergeWorker
sidekiq_options queue: 'pull'
def perform(from_account_id, into_account_id)
FeedManager.instance.unmerge_from_timeline(Account.find(from_account_id), Account.find(into_account_id))
FeedManager.instance.unmerge_from_home(Account.find(from_account_id), Account.find(into_account_id))
rescue ActiveRecord::RecordNotFound
true
end
end

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@ -29,14 +29,14 @@ RSpec.describe FeedManager do
it 'returns false for followee\'s status' do
status = Fabricate(:status, text: 'Hello world', account: alice)
bob.follow!(alice)
expect(FeedManager.instance.filter?(:home, status, bob.id)).to be false
expect(FeedManager.instance.filter?(:home, status, bob)).to be false
end
it 'returns false for reblog by followee' do
status = Fabricate(:status, text: 'Hello world', account: jeff)
reblog = Fabricate(:status, reblog: status, account: alice)
bob.follow!(alice)
expect(FeedManager.instance.filter?(:home, reblog, bob.id)).to be false
expect(FeedManager.instance.filter?(:home, reblog, bob)).to be false
end
it 'returns true for reblog by followee of blocked account' do
@ -44,7 +44,7 @@ RSpec.describe FeedManager do
reblog = Fabricate(:status, reblog: status, account: alice)
bob.follow!(alice)
bob.block!(jeff)
expect(FeedManager.instance.filter?(:home, reblog, bob.id)).to be true
expect(FeedManager.instance.filter?(:home, reblog, bob)).to be true
end
it 'returns true for reblog by followee of muted account' do
@ -52,7 +52,7 @@ RSpec.describe FeedManager do
reblog = Fabricate(:status, reblog: status, account: alice)
bob.follow!(alice)
bob.mute!(jeff)
expect(FeedManager.instance.filter?(:home, reblog, bob.id)).to be true
expect(FeedManager.instance.filter?(:home, reblog, bob)).to be true
end
it 'returns true for reblog by followee of someone who is blocking recipient' do
@ -60,14 +60,14 @@ RSpec.describe FeedManager do
reblog = Fabricate(:status, reblog: status, account: alice)
bob.follow!(alice)
jeff.block!(bob)
expect(FeedManager.instance.filter?(:home, reblog, bob.id)).to be true
expect(FeedManager.instance.filter?(:home, reblog, bob)).to be true
end
it 'returns true for reblog from account with reblogs disabled' do
status = Fabricate(:status, text: 'Hello world', account: jeff)
reblog = Fabricate(:status, reblog: status, account: alice)
bob.follow!(alice, reblogs: false)
expect(FeedManager.instance.filter?(:home, reblog, bob.id)).to be true
expect(FeedManager.instance.filter?(:home, reblog, bob)).to be true
end
it 'returns false for reply by followee to another followee' do
@ -75,48 +75,48 @@ RSpec.describe FeedManager do
reply = Fabricate(:status, text: 'Nay', thread: status, account: alice)
bob.follow!(alice)
bob.follow!(jeff)
expect(FeedManager.instance.filter?(:home, reply, bob.id)).to be false
expect(FeedManager.instance.filter?(:home, reply, bob)).to be false
end
it 'returns false for reply by followee to recipient' do
status = Fabricate(:status, text: 'Hello world', account: bob)
reply = Fabricate(:status, text: 'Nay', thread: status, account: alice)
bob.follow!(alice)
expect(FeedManager.instance.filter?(:home, reply, bob.id)).to be false
expect(FeedManager.instance.filter?(:home, reply, bob)).to be false
end
it 'returns false for reply by followee to self' do
status = Fabricate(:status, text: 'Hello world', account: alice)
reply = Fabricate(:status, text: 'Nay', thread: status, account: alice)
bob.follow!(alice)
expect(FeedManager.instance.filter?(:home, reply, bob.id)).to be false
expect(FeedManager.instance.filter?(:home, reply, bob)).to be false
end
it 'returns true for reply by followee to non-followed account' do
status = Fabricate(:status, text: 'Hello world', account: jeff)
reply = Fabricate(:status, text: 'Nay', thread: status, account: alice)
bob.follow!(alice)
expect(FeedManager.instance.filter?(:home, reply, bob.id)).to be true
expect(FeedManager.instance.filter?(:home, reply, bob)).to be true
end
it 'returns true for the second reply by followee to a non-federated status' do
reply = Fabricate(:status, text: 'Reply 1', reply: true, account: alice)
second_reply = Fabricate(:status, text: 'Reply 2', thread: reply, account: alice)
bob.follow!(alice)
expect(FeedManager.instance.filter?(:home, second_reply, bob.id)).to be true
expect(FeedManager.instance.filter?(:home, second_reply, bob)).to be true
end
it 'returns false for status by followee mentioning another account' do
bob.follow!(alice)
status = PostStatusService.new.call(alice, text: 'Hey @jeff')
expect(FeedManager.instance.filter?(:home, status, bob.id)).to be false
expect(FeedManager.instance.filter?(:home, status, bob)).to be false
end
it 'returns true for status by followee mentioning blocked account' do
bob.block!(jeff)
bob.follow!(alice)
status = PostStatusService.new.call(alice, text: 'Hey @jeff')
expect(FeedManager.instance.filter?(:home, status, bob.id)).to be true
expect(FeedManager.instance.filter?(:home, status, bob)).to be true
end
it 'returns true for reblog of a personally blocked domain' do
@ -124,7 +124,7 @@ RSpec.describe FeedManager do
alice.follow!(jeff)
status = Fabricate(:status, text: 'Hello world', account: bob)
reblog = Fabricate(:status, reblog: status, account: jeff)
expect(FeedManager.instance.filter?(:home, reblog, alice.id)).to be true
expect(FeedManager.instance.filter?(:home, reblog, alice)).to be true
end
context 'for irreversibly muted phrases' do
@ -132,7 +132,7 @@ RSpec.describe FeedManager do
alice.custom_filters.create!(phrase: 'bob', context: %w(home), irreversible: true)
alice.follow!(jeff)
status = Fabricate(:status, text: 'bobcats', account: jeff)
expect(FeedManager.instance.filter?(:home, status, alice.id)).to be_falsy
expect(FeedManager.instance.filter?(:home, status, alice)).to be_falsy
end
it 'returns true if phrase is contained' do
@ -140,14 +140,14 @@ RSpec.describe FeedManager do
alice.custom_filters.create!(phrase: 'pop tarts', context: %w(home), irreversible: true)
alice.follow!(jeff)
status = Fabricate(:status, text: 'i sure like POP TARts', account: jeff)
expect(FeedManager.instance.filter?(:home, status, alice.id)).to be true
expect(FeedManager.instance.filter?(:home, status, alice)).to be true
end
it 'matches substrings if whole_word is false' do
alice.custom_filters.create!(phrase: 'take', context: %w(home), whole_word: false, irreversible: true)
alice.follow!(jeff)
status = Fabricate(:status, text: 'shiitake', account: jeff)
expect(FeedManager.instance.filter?(:home, status, alice.id)).to be true
expect(FeedManager.instance.filter?(:home, status, alice)).to be true
end
it 'returns true if phrase is contained in a poll option' do
@ -155,7 +155,7 @@ RSpec.describe FeedManager do
alice.custom_filters.create!(phrase: 'pop tarts', context: %w(home), irreversible: true)
alice.follow!(jeff)
status = Fabricate(:status, text: 'what do you prefer', poll: Fabricate(:poll, options: %w(farts POP TARts)), account: jeff)
expect(FeedManager.instance.filter?(:home, status, alice.id)).to be true
expect(FeedManager.instance.filter?(:home, status, alice)).to be true
end
end
end
@ -164,27 +164,27 @@ RSpec.describe FeedManager do
it 'returns true for status that mentions blocked account' do
bob.block!(jeff)
status = PostStatusService.new.call(alice, text: 'Hey @jeff')
expect(FeedManager.instance.filter?(:mentions, status, bob.id)).to be true
expect(FeedManager.instance.filter?(:mentions, status, bob)).to be true
end
it 'returns true for status that replies to a blocked account' do
status = Fabricate(:status, text: 'Hello world', account: jeff)
reply = Fabricate(:status, text: 'Nay', thread: status, account: alice)
bob.block!(jeff)
expect(FeedManager.instance.filter?(:mentions, reply, bob.id)).to be true
expect(FeedManager.instance.filter?(:mentions, reply, bob)).to be true
end
it 'returns true for status by silenced account who recipient is not following' do
status = Fabricate(:status, text: 'Hello world', account: alice)
alice.silence!
expect(FeedManager.instance.filter?(:mentions, status, bob.id)).to be true
expect(FeedManager.instance.filter?(:mentions, status, bob)).to be true
end
it 'returns false for status by followed silenced account' do
status = Fabricate(:status, text: 'Hello world', account: alice)
alice.silence!
bob.follow!(alice)
expect(FeedManager.instance.filter?(:mentions, status, bob.id)).to be false
expect(FeedManager.instance.filter?(:mentions, status, bob)).to be false
end
end
end
@ -414,52 +414,20 @@ RSpec.describe FeedManager do
end
end
describe '#merge_into_timeline' do
describe '#merge_into_home' do
it "does not push source account's statuses whose reblogs are already inserted" do
account = Fabricate(:account, id: 0)
reblog = Fabricate(:status)
status = Fabricate(:status, reblog: reblog)
FeedManager.instance.push_to_home(account, status)
FeedManager.instance.merge_into_timeline(account, reblog.account)
FeedManager.instance.merge_into_home(account, reblog.account)
expect(Redis.current.zscore("feed:home:0", reblog.id)).to eq nil
end
end
describe '#trim' do
let(:receiver) { Fabricate(:account) }
it 'cleans up reblog tracking keys' do
reblogged = Fabricate(:status)
status = Fabricate(:status, reblog: reblogged)
another_status = Fabricate(:status, reblog: reblogged)
reblogs_key = FeedManager.instance.key('home', receiver.id, 'reblogs')
reblog_set_key = FeedManager.instance.key('home', receiver.id, "reblogs:#{reblogged.id}")
FeedManager.instance.push_to_home(receiver, status)
FeedManager.instance.push_to_home(receiver, another_status)
# We should have a tracking set and an entry in reblogs.
expect(Redis.current.exists?(reblog_set_key)).to be true
expect(Redis.current.zrange(reblogs_key, 0, -1)).to eq [reblogged.id.to_s]
# Push everything past the reblog falloff.
FeedManager::REBLOG_FALLOFF.times do
FeedManager.instance.push_to_home(receiver, Fabricate(:status))
end
# `trim` should be called automatically, but do it anyway, as
# we're testing `trim`, not side effects of `push`.
FeedManager.instance.trim('home', receiver.id)
# We should not have any reblog tracking data.
expect(Redis.current.exists?(reblog_set_key)).to be false
expect(Redis.current.zrange(reblogs_key, 0, -1)).to be_empty
end
end
describe '#unpush' do
describe '#unpush_from_home' do
let(:receiver) { Fabricate(:account) }
it 'leaves a reblogged status if original was on feed' do
@ -525,7 +493,7 @@ RSpec.describe FeedManager do
end
end
describe '#clear_from_timeline' do
describe '#clear_from_home' do
let(:account) { Fabricate(:account) }
let(:followed_account) { Fabricate(:account) }
let(:target_account) { Fabricate(:account) }
@ -543,8 +511,8 @@ RSpec.describe FeedManager do
end
end
it 'correctly cleans the timeline' do
FeedManager.instance.clear_from_timeline(account, target_account)
it 'correctly cleans the home timeline' do
FeedManager.instance.clear_from_home(account, target_account)
expect(Redis.current.zrange("feed:home:#{account.id}", 0, -1)).to eq [status_1.id.to_s, status_7.id.to_s]
end