Add ability to follow hashtags (#18809)

pull/18819/head^2
Eugen Rochko 2022-07-17 13:49:29 +02:00 committed by GitHub
parent ecb3bb3256
commit c3f0621a59
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18 changed files with 329 additions and 20 deletions

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@ -6,7 +6,7 @@ class Api::V1::FeaturedTags::SuggestionsController < Api::BaseController
before_action :set_recently_used_tags, only: :index
def index
render json: @recently_used_tags, each_serializer: REST::TagSerializer
render json: @recently_used_tags, each_serializer: REST::TagSerializer, relationships: TagRelationshipsPresenter.new(@recently_used_tags, current_user&.account_id)
end
private

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@ -0,0 +1,52 @@
# frozen_string_literal: true
class Api::V1::FollowedTagsController < Api::BaseController
TAGS_LIMIT = 100
before_action -> { doorkeeper_authorize! :follow, :read, :'read:follows' }, except: :show
before_action :require_user!
before_action :set_results
after_action :insert_pagination_headers, only: :show
def index
render json: @results.map(&:tag), each_serializer: REST::TagSerializer, relationships: TagRelationshipsPresenter.new(@results.map(&:tag), current_user&.account_id)
end
private
def set_results
@results = TagFollow.where(account: current_account).joins(:tag).eager_load(:tag).to_a_paginated_by_id(
limit_param(TAGS_LIMIT),
params_slice(:max_id, :since_id, :min_id)
)
end
def insert_pagination_headers
set_pagination_headers(next_path, prev_path)
end
def next_path
api_v1_followed_tags_url pagination_params(max_id: pagination_max_id) if records_continue?
end
def prev_path
api_v1_followed_tags_url pagination_params(since_id: pagination_since_id) unless @results.empty?
end
def pagination_max_id
@results.last.id
end
def pagination_since_id
@results.first.id
end
def records_continue?
@results.size == limit_param(TAG_LIMIT)
end
def pagination_params(core_params)
params.slice(:limit).permit(:limit).merge(core_params)
end
end

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@ -0,0 +1,29 @@
# frozen_string_literal: true
class Api::V1::TagsController < Api::BaseController
before_action -> { doorkeeper_authorize! :follow, :write, :'write:follows' }, except: :show
before_action :require_user!, except: :show
before_action :set_or_create_tag
override_rate_limit_headers :follow, family: :follows
def show
render json: @tag, serializer: REST::TagSerializer
end
def follow
TagFollow.create!(tag: @tag, account: current_account, rate_limit: true)
render json: @tag, serializer: REST::TagSerializer
end
def unfollow
TagFollow.find_by(account: current_account, tag: @tag)&.destroy!
render json: @tag, serializer: REST::TagSerializer
end
private
def set_or_create_tag
@tag = Tag.find_normalized(params[:id]) || Tag.new(name: Tag.normalize(params[:id]), display_name: params[:id])
end
end

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@ -8,7 +8,7 @@ class Api::V1::Trends::TagsController < Api::BaseController
DEFAULT_TAGS_LIMIT = 10
def index
render json: @tags, each_serializer: REST::TagSerializer
render json: @tags, each_serializer: REST::TagSerializer, relationships: TagRelationshipsPresenter.new(@tags, current_user&.account_id)
end
private

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@ -45,6 +45,8 @@ class FeedManager
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)
when :tags
filter_from_tags?(status, receiver.id, build_crutches(receiver.id, [status]))
else
false
end
@ -56,7 +58,7 @@ class FeedManager
# @param [Boolean] update
# @return [Boolean]
def push_to_home(account, status, update: false)
return false unless add_to_feed(:home, account.id, status, account.user&.aggregates_reblogs?)
return false unless add_to_feed(:home, account.id, status, aggregate_reblogs: account.user&.aggregates_reblogs?)
trim(:home, account.id)
PushUpdateWorker.perform_async(account.id, status.id, "timeline:#{account.id}", { 'update' => update }) if push_update_required?("timeline:#{account.id}")
@ -69,7 +71,7 @@ class FeedManager
# @param [Boolean] update
# @return [Boolean]
def unpush_from_home(account, status, update: false)
return false unless remove_from_feed(:home, account.id, status, account.user&.aggregates_reblogs?)
return false unless remove_from_feed(:home, account.id, status, aggregate_reblogs: account.user&.aggregates_reblogs?)
redis.publish("timeline:#{account.id}", Oj.dump(event: :delete, payload: status.id.to_s)) unless update
true
@ -81,7 +83,7 @@ class FeedManager
# @param [Boolean] update
# @return [Boolean]
def push_to_list(list, status, update: false)
return false if filter_from_list?(status, list) || !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, aggregate_reblogs: list.account.user&.aggregates_reblogs?)
trim(:list, list.id)
PushUpdateWorker.perform_async(list.account_id, status.id, "timeline:list:#{list.id}", { 'update' => update }) if push_update_required?("timeline:list:#{list.id}")
@ -94,7 +96,7 @@ class FeedManager
# @param [Boolean] update
# @return [Boolean]
def unpush_from_list(list, status, update: false)
return false unless remove_from_feed(:list, list.id, status, list.account.user&.aggregates_reblogs?)
return false unless remove_from_feed(:list, list.id, status, aggregate_reblogs: list.account.user&.aggregates_reblogs?)
redis.publish("timeline:list:#{list.id}", Oj.dump(event: :delete, payload: status.id.to_s)) unless update
true
@ -120,7 +122,7 @@ class FeedManager
statuses.each do |status|
next if filter_from_home?(status, into_account.id, crutches)
add_to_feed(:home, into_account.id, status, aggregate)
add_to_feed(:home, into_account.id, status, aggregate_reblogs: aggregate)
end
trim(:home, into_account.id)
@ -146,7 +148,7 @@ class FeedManager
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)
add_to_feed(:list, list.id, status, aggregate_reblogs: aggregate)
end
trim(:list, list.id)
@ -161,7 +163,7 @@ class FeedManager
timeline_status_ids = redis.zrange(timeline_key, 0, -1)
from_account.statuses.select('id, reblog_of_id').where(id: timeline_status_ids).reorder(nil).find_each do |status|
remove_from_feed(:home, into_account.id, status, into_account.user&.aggregates_reblogs?)
remove_from_feed(:home, into_account.id, status, aggregate_reblogs: into_account.user&.aggregates_reblogs?)
end
end
@ -174,7 +176,7 @@ class FeedManager
timeline_status_ids = redis.zrange(timeline_key, 0, -1)
from_account.statuses.select('id, reblog_of_id').where(id: timeline_status_ids).reorder(nil).find_each do |status|
remove_from_feed(:list, list.id, status, list.account.user&.aggregates_reblogs?)
remove_from_feed(:list, list.id, status, aggregate_reblogs: list.account.user&.aggregates_reblogs?)
end
end
@ -237,7 +239,7 @@ class FeedManager
timeline_key = key(:home, account.id)
account.statuses.limit(limit).each do |status|
add_to_feed(:home, account.id, status, aggregate)
add_to_feed(:home, account.id, status, aggregate_reblogs: aggregate)
end
account.following.includes(:account_stat).find_each do |target_account|
@ -257,7 +259,7 @@ class FeedManager
statuses.each do |status|
next if filter_from_home?(status, account.id, crutches)
add_to_feed(:home, account.id, status, aggregate)
add_to_feed(:home, account.id, status, aggregate_reblogs: aggregate)
end
trim(:home, account.id)
@ -416,6 +418,16 @@ class FeedManager
false
end
# Check if a status should not be added to the home feed when it comes
# from a followed hashtag
# @param [Status] status
# @param [Integer] receiver_id
# @param [Hash] crutches
# @return [Boolean]
def filter_from_tags?(status, receiver_id, crutches)
receiver_id != status.account_id && (((crutches[:active_mentions][status.id] || []) + [status.account_id]).any? { |target_account_id| crutches[:blocking][target_account_id] || crutches[:muting][target_account_id] } || crutches[:blocked_by][status.account_id] || crutches[:domain_blocking][status.account.domain])
end
# Adds a status to an account's feed, returning true if a status was
# 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
@ -425,7 +437,7 @@ class FeedManager
# @param [Status] status
# @param [Boolean] aggregate_reblogs
# @return [Boolean]
def add_to_feed(timeline_type, account_id, status, aggregate_reblogs = true)
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')
@ -473,7 +485,7 @@ class FeedManager
# @param [Status] status
# @param [Boolean] aggregate_reblogs
# @return [Boolean]
def remove_from_feed(timeline_type, account_id, status, aggregate_reblogs = true)
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')

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@ -22,13 +22,16 @@ class Tag < ApplicationRecord
has_and_belongs_to_many :statuses
has_and_belongs_to_many :accounts
has_many :passive_relationships, class_name: 'TagFollow', inverse_of: :tag, dependent: :destroy
has_many :featured_tags, dependent: :destroy, inverse_of: :tag
has_many :followers, through: :passive_relationships, source: :account
HASHTAG_SEPARATORS = "_\u00B7\u200c"
HASHTAG_NAME_RE = "([[:alnum:]_][[:alnum:]#{HASHTAG_SEPARATORS}]*[[:alpha:]#{HASHTAG_SEPARATORS}][[:alnum:]#{HASHTAG_SEPARATORS}]*[[:alnum:]_])|([[:alnum:]_]*[[:alpha:]][[:alnum:]_]*)"
HASHTAG_RE = /(?:^|[^\/\)\w])#(#{HASHTAG_NAME_RE})/i
validates :name, presence: true, format: { with: /\A(#{HASHTAG_NAME_RE})\z/i }
validates :display_name, format: { with: /\A(#{HASHTAG_NAME_RE})\z/i }
validate :validate_name_change, if: -> { !new_record? && name_changed? }
validate :validate_display_name_change, if: -> { !new_record? && display_name_changed? }
@ -99,7 +102,7 @@ class Tag < ApplicationRecord
names = Array(name_or_names).map { |str| [normalize(str), str] }.uniq(&:first)
names.map do |(normalized_name, display_name)|
tag = matching_name(normalized_name).first || create(name: normalized_name, display_name: display_name)
tag = matching_name(normalized_name).first || create(name: normalized_name, display_name: display_name.gsub(/[^[:alnum:]#{HASHTAG_SEPARATORS}]/, ''))
yield tag if block_given?

24
app/models/tag_follow.rb Normal file
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@ -0,0 +1,24 @@
# frozen_string_literal: true
# == Schema Information
#
# Table name: tag_follows
#
# id :bigint(8) not null, primary key
# tag_id :bigint(8) not null
# account_id :bigint(8) not null
# created_at :datetime not null
# updated_at :datetime not null
#
class TagFollow < ApplicationRecord
include RateLimitable
include Paginable
belongs_to :tag
belongs_to :account
accepts_nested_attributes_for :tag
rate_limit by: :account, family: :follows
end

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@ -0,0 +1,15 @@
# frozen_string_literal: true
class TagRelationshipsPresenter
attr_reader :following_map
def initialize(tags, current_account_id = nil, **options)
@following_map = begin
if current_account_id.nil?
{}
else
TagFollow.select(:tag_id).where(tag_id: tags.map(&:id), account_id: current_account_id).each_with_object({}) { |f, h| h[f.tag_id] = true }.merge(options[:following_map] || {})
end
end
end
end

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@ -5,6 +5,8 @@ class REST::TagSerializer < ActiveModel::Serializer
attributes :name, :url, :history
attribute :following, if: :current_user?
def url
tag_url(object)
end
@ -12,4 +14,16 @@ class REST::TagSerializer < ActiveModel::Serializer
def name
object.display_name
end
def following
if instance_options && instance_options[:relationships]
instance_options[:relationships].following_map[object.id] || false
else
TagFollow.where(tag_id: object.id, account_id: current_user.account_id).exists?
end
end
def current_user?
!current_user.nil?
end
end

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@ -16,6 +16,7 @@ class FanOutOnWriteService < BaseService
check_race_condition!
fan_out_to_local_recipients!
fan_out_to_public_recipients! if broadcastable?
fan_out_to_public_streams! if broadcastable?
end
@ -50,6 +51,10 @@ class FanOutOnWriteService < BaseService
end
end
def fan_out_to_public_recipients!
deliver_to_hashtag_followers!
end
def fan_out_to_public_streams!
broadcast_to_hashtag_streams!
broadcast_to_public_streams!
@ -83,6 +88,14 @@ class FanOutOnWriteService < BaseService
end
end
def deliver_to_hashtag_followers!
TagFollow.where(tag_id: @status.tags.map(&:id)).select(:id, :account_id).reorder(nil).find_in_batches do |follows|
FeedInsertWorker.push_bulk(follows) do |follow|
[@status.id, follow.account_id, 'tags', { 'update' => update? }]
end
end
end
def deliver_to_lists!
@account.lists_for_local_distribution.select(:id).reorder(nil).find_in_batches do |lists|
FeedInsertWorker.push_bulk(lists) do |list|
@ -100,7 +113,7 @@ class FanOutOnWriteService < BaseService
end
def broadcast_to_hashtag_streams!
@status.tags.pluck(:name).each do |hashtag|
@status.tags.map(&:name).each do |hashtag|
redis.publish("timeline:hashtag:#{hashtag.mb_chars.downcase}", anonymous_payload)
redis.publish("timeline:hashtag:#{hashtag.mb_chars.downcase}:local", anonymous_payload) if @status.local?
end

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@ -9,7 +9,7 @@ class FeedInsertWorker
@options = options.symbolize_keys
case @type
when :home
when :home, :tags
@follower = Account.find(id)
when :list
@list = List.find(id)
@ -36,6 +36,8 @@ class FeedInsertWorker
case @type
when :home
FeedManager.instance.filter?(:home, @status, @follower)
when :tags
FeedManager.instance.filter?(:tags, @status, @follower)
when :list
FeedManager.instance.filter?(:list, @status, @list)
end
@ -49,7 +51,7 @@ class FeedInsertWorker
def perform_push
case @type
when :home
when :home, :tags
FeedManager.instance.push_to_home(@follower, @status, update: update?)
when :list
FeedManager.instance.push_to_list(@list, @status, update: update?)
@ -58,7 +60,7 @@ class FeedInsertWorker
def perform_unpush
case @type
when :home
when :home, :tags
FeedManager.instance.unpush_from_home(@follower, @status, update: true)
when :list
FeedManager.instance.unpush_from_list(@list, @status, update: true)

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@ -530,6 +530,15 @@ Rails.application.routes.draw do
resource :note, only: :create, controller: 'accounts/notes'
end
resources :tags, only: [:show], constraints: { id: /#{Tag::HASHTAG_NAME_RE}/ } do
member do
post :follow
post :unfollow
end
end
resources :followed_tags, only: [:index]
resources :lists, only: [:index, :create, :show, :update, :destroy] do
resource :accounts, only: [:show, :create, :destroy], controller: 'lists/accounts'
end

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@ -0,0 +1,12 @@
class CreateTagFollows < ActiveRecord::Migration[6.1]
def change
create_table :tag_follows do |t|
t.belongs_to :tag, null: false, foreign_key: { on_delete: :cascade }
t.belongs_to :account, null: false, foreign_key: { on_delete: :cascade }, index: false
t.timestamps
end
add_index :tag_follows, [:account_id, :tag_id], unique: true
end
end

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@ -10,7 +10,7 @@
#
# It's strongly recommended that you check this file into your version control system.
ActiveRecord::Schema.define(version: 2022_07_10_102457) do
ActiveRecord::Schema.define(version: 2022_07_14_171049) do
# These are extensions that must be enabled in order to support this database
enable_extension "plpgsql"
@ -928,6 +928,15 @@ ActiveRecord::Schema.define(version: 2022_07_10_102457) do
t.datetime "updated_at", null: false
end
create_table "tag_follows", force: :cascade do |t|
t.bigint "tag_id", null: false
t.bigint "account_id", null: false
t.datetime "created_at", precision: 6, null: false
t.datetime "updated_at", precision: 6, null: false
t.index ["account_id", "tag_id"], name: "index_tag_follows_on_account_id_and_tag_id", unique: true
t.index ["tag_id"], name: "index_tag_follows_on_tag_id"
end
create_table "tags", force: :cascade do |t|
t.string "name", default: "", null: false
t.datetime "created_at", null: false
@ -1167,6 +1176,8 @@ ActiveRecord::Schema.define(version: 2022_07_10_102457) do
add_foreign_key "statuses", "statuses", column: "reblog_of_id", on_delete: :cascade
add_foreign_key "statuses_tags", "statuses", on_delete: :cascade
add_foreign_key "statuses_tags", "tags", name: "fk_3081861e21", on_delete: :cascade
add_foreign_key "tag_follows", "accounts", on_delete: :cascade
add_foreign_key "tag_follows", "tags", on_delete: :cascade
add_foreign_key "tombstones", "accounts", on_delete: :cascade
add_foreign_key "user_invite_requests", "users", on_delete: :cascade
add_foreign_key "users", "accounts", name: "fk_50500f500d", on_delete: :cascade

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@ -0,0 +1,23 @@
require 'rails_helper'
RSpec.describe Api::V1::FollowedTagsController, type: :controller do
render_views
let(:user) { Fabricate(:user) }
let(:scopes) { 'read:follows' }
let(:token) { Fabricate(:accessible_access_token, resource_owner_id: user.id, scopes: scopes) }
before { allow(controller).to receive(:doorkeeper_token) { token } }
describe 'GET #index' do
let!(:tag_follows) { Fabricate.times(5, :tag_follow, account: user.account) }
before do
get :index, params: { limit: 1 }
end
it 'returns http success' do
expect(response).to have_http_status(:success)
end
end
end

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@ -0,0 +1,82 @@
require 'rails_helper'
RSpec.describe Api::V1::TagsController, type: :controller do
render_views
let(:user) { Fabricate(:user) }
let(:scopes) { 'write:follows' }
let(:token) { Fabricate(:accessible_access_token, resource_owner_id: user.id, scopes: scopes) }
before { allow(controller).to receive(:doorkeeper_token) { token } }
describe 'GET #show' do
before do
get :show, params: { id: name }
end
context 'with existing tag' do
let!(:tag) { Fabricate(:tag) }
let(:name) { tag.name }
it 'returns http success' do
expect(response).to have_http_status(:success)
end
end
context 'with non-existing tag' do
let(:name) { 'hoge' }
it 'returns http success' do
expect(response).to have_http_status(:success)
end
end
end
describe 'POST #follow' do
before do
post :follow, params: { id: name }
end
context 'with existing tag' do
let!(:tag) { Fabricate(:tag) }
let(:name) { tag.name }
it 'returns http success' do
expect(response).to have_http_status(:success)
end
it 'creates follow' do
expect(TagFollow.where(tag: tag, account: user.account).exists?).to be true
end
end
context 'with non-existing tag' do
let(:name) { 'hoge' }
it 'returns http success' do
expect(response).to have_http_status(:success)
end
it 'creates follow' do
expect(TagFollow.where(tag: Tag.find_by!(name: name), account: user.account).exists?).to be true
end
end
end
describe 'POST #unfollow' do
let!(:tag) { Fabricate(:tag, name: 'foo') }
let!(:tag_follow) { Fabricate(:tag_follow, account: user.account, tag: tag) }
before do
post :unfollow, params: { id: tag.name }
end
it 'returns http success' do
expect(response).to have_http_status(:success)
end
it 'removes the follow' do
expect(TagFollow.where(tag: tag, account: user.account).exists?).to be false
end
end
end

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@ -0,0 +1,4 @@
Fabricator(:tag_follow) do
tag
account
end

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@ -0,0 +1,4 @@
require 'rails_helper'
RSpec.describe TagFollow, type: :model do
end