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104 lines
3.2 KiB
104 lines
3.2 KiB
# frozen_string_literal: true |
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require 'singleton' |
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class FeedManager |
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include Singleton |
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MAX_ITEMS = 800 |
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def key(type, id) |
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"feed:#{type}:#{id}" |
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end |
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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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elsif timeline_type == :mentions |
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filter_from_mentions?(status, receiver) |
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elsif timeline_type == :public |
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filter_from_public?(status, receiver) |
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else |
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false |
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end |
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end |
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def push(timeline_type, account, status) |
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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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trim(timeline_type, account.id) |
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broadcast(account.id, type: 'update', timeline: timeline_type, message: inline_render(account, 'api/v1/statuses/show', status)) |
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end |
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def broadcast(timeline_id, options = {}) |
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ActionCable.server.broadcast("timeline:#{timeline_id}", options) |
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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, template, object) |
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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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@account.try(:user) |
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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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Rabl::Renderer.new(template, object, view_path: 'app/views', format: :json, scope: rabl_scope.new(target_account)).render |
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end |
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private |
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def redis |
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Redis.current |
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end |
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def filter_from_home?(status, receiver) |
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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 &&= !(receiver.id == status.thread.account_id) # and it's not a reply to me |
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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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end |
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def filter_from_mentions?(status, receiver) |
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should_filter = receiver.id == status.account_id # Filter if I'm mentioning myself |
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should_filter ||= receiver.blocking?(status.account) # or it's from someone I blocked |
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if status.reply? && !status.thread.account.nil? # or it's a reply |
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should_filter ||= receiver.blocking?(status.thread.account) # to a user I blocked |
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end |
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should_filter |
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end |
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def filter_from_public?(status, receiver) |
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should_filter = receiver.blocking?(status.account) |
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if status.reply? && !status.thread.account.nil? |
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should_filter ||= receiver.blocking?(status.thread.account) |
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elsif status.reblog? |
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should_filter ||= receiver.blocking?(status.reblog.account) |
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end |
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should_filter |
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end |
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end
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