2016-09-09 14:04:34 -04:00
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require 'singleton'
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2016-03-24 21:13:30 -04:00
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class FeedManager
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2016-09-09 14:04:34 -04:00
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include Singleton
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2016-03-24 21:13:30 -04:00
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MAX_ITEMS = 800
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2016-09-09 14:04:34 -04:00
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def key(type, id)
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2016-03-24 21:13:30 -04:00
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"feed:#{type}:#{id}"
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end
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2016-10-02 09:28:47 -04:00
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def filter?(timeline_type, status, receiver)
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if timeline_type == :home
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filter_from_home?(status, receiver)
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2016-11-07 17:20:52 -05:00
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elsif timeline_type == :mentions
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2016-10-02 09:28:47 -04:00
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filter_from_mentions?(status, receiver)
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2016-11-07 17:20:52 -05:00
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else
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false
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2016-10-02 09:28:47 -04:00
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end
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2016-03-24 21:13:30 -04:00
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end
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2016-09-10 12:36:48 -04:00
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def push(timeline_type, account, status)
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2016-09-29 15:40:37 -04:00
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redis.zadd(key(timeline_type, account.id), status.id, status.reblog? ? status.reblog_of_id : status.id)
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2016-09-10 12:36:48 -04:00
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trim(timeline_type, account.id)
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2016-09-12 12:22:43 -04:00
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broadcast(account.id, type: 'update', timeline: timeline_type, message: inline_render(account, status))
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end
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2016-11-05 10:20:05 -04:00
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def broadcast(timeline_id, options = {})
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ActionCable.server.broadcast("timeline:#{timeline_id}", options)
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2016-09-10 12:36:48 -04:00
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end
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def trim(type, account_id)
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return unless redis.zcard(key(type, account_id)) > FeedManager::MAX_ITEMS
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last = redis.zrevrange(key(type, account_id), FeedManager::MAX_ITEMS - 1, FeedManager::MAX_ITEMS - 1)
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redis.zremrangebyscore(key(type, account_id), '-inf', "(#{last.last}")
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end
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def inline_render(target_account, status)
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rabl_scope = Class.new do
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include RoutingHelper
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def initialize(account)
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@account = account
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end
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def current_user
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2016-10-07 10:00:11 -04:00
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@account.try(:user)
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2016-09-10 12:36:48 -04:00
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end
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def current_account
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@account
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end
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end
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2016-09-27 10:58:23 -04:00
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Rabl::Renderer.new('api/v1/statuses/show', status, view_path: 'app/views', format: :json, scope: rabl_scope.new(target_account)).render
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2016-09-10 12:36:48 -04:00
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end
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2016-10-07 10:00:11 -04:00
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private
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def redis
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$redis
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end
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def filter_from_home?(status, receiver)
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2016-11-07 17:20:52 -05:00
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should_filter = false
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if status.reply? && !status.thread.account.nil? # Filter out if it's a reply
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should_filter = !receiver.following?(status.thread.account) # and I'm not following the person it's a reply to
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should_filter = should_filter && !(receiver.id == status.thread.account_id) # and it's not a reply to me
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should_filter = should_filter && !(status.account_id == status.thread.account_id) # and it's not a self-reply
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elsif status.reblog? # Filter out a reblog
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should_filter = receiver.blocking?(status.reblog.account) # if I'm blocking the reblogged person
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end
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should_filter
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2016-10-07 10:00:11 -04:00
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end
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def filter_from_mentions?(status, receiver)
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2016-11-07 20:08:32 -05:00
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should_filter = receiver.id == status.account_id # Filter if I'm mentioning myself
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should_filter = should_filter || receiver.blocking?(status.account) # or it's from someone I blocked
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2016-11-07 17:20:52 -05:00
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should_filter
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2016-10-07 10:00:11 -04:00
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end
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2016-03-24 21:13:30 -04:00
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end
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