mirror of https://github.com/mastodon/mastodon
Refactor controllers for statuses, accounts, and more (#11249)
Eugen Rochko
6 years ago
committed by
GitHub
parent
f14776475d
commit
63c7fe8e48
@ -0,0 +1,68 @@
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# frozen_string_literal: true
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class ActivityPub::RepliesController < Api::BaseController
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include SignatureAuthentication
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include Authorization
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include AccountOwnedConcern
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DESCENDANTS_LIMIT = 60
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before_action :set_status
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before_action :set_cache_headers
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before_action :set_replies
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def index
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render json: replies_collection_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json', skip_activities: true
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end
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private
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def set_status
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@status = @account.statuses.find(params[:status_id])
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authorize @status, :show?
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rescue Mastodon::NotPermittedError
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raise ActiveRecord::RecordNotFound
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end
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def set_replies
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@replies = page_params[:other_accounts] ? Status.where.not(account_id: @account.id) : @account.statuses
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@replies = @replies.where(in_reply_to_id: @status.id, visibility: [:public, :unlisted])
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@replies = @replies.paginate_by_min_id(DESCENDANTS_LIMIT, params[:min_id])
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end
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def replies_collection_presenter
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page = ActivityPub::CollectionPresenter.new(
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id: account_status_replies_url(@account, @status, page_params),
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type: :unordered,
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part_of: account_status_replies_url(@account, @status),
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next: next_page,
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items: @replies.map { |status| status.local ? status : status.id }
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)
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return page if page_requested?
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ActivityPub::CollectionPresenter.new(
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id: account_status_replies_url(@account, @status),
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type: :unordered,
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first: page
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)
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end
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def page_requested?
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params[:page] == 'true'
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end
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def next_page
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account_status_replies_url(
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@account,
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@status,
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page: true,
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min_id: @replies&.last&.id,
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other_accounts: !(@replies&.last&.account_id == @account.id && @replies.size == DESCENDANTS_LIMIT)
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)
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end
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def page_params
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params_slice(:other_accounts, :min_id).merge(page: true)
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end
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end
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@ -0,0 +1,33 @@
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# frozen_string_literal: true
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module AccountOwnedConcern
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extend ActiveSupport::Concern
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included do
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before_action :set_account, if: :account_required?
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before_action :check_account_approval, if: :account_required?
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before_action :check_account_suspension, if: :account_required?
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end
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private
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def account_required?
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true
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end
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def set_account
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@account = Account.find_local!(username_param)
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end
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def username_param
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params[:account_username]
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end
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def check_account_approval
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not_found if @account.local? && @account.user_pending?
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end
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def check_account_suspension
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expires_in(3.minutes, public: true) && gone if @account.suspended?
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end
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end
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@ -0,0 +1,87 @@
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# frozen_string_literal: true
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module StatusControllerConcern
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extend ActiveSupport::Concern
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ANCESTORS_LIMIT = 40
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DESCENDANTS_LIMIT = 60
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DESCENDANTS_DEPTH_LIMIT = 20
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def create_descendant_thread(starting_depth, statuses)
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depth = starting_depth + statuses.size
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if depth < DESCENDANTS_DEPTH_LIMIT
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{
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statuses: statuses,
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starting_depth: starting_depth,
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}
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else
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next_status = statuses.pop
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{
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statuses: statuses,
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starting_depth: starting_depth,
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next_status: next_status,
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}
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end
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end
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def set_ancestors
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@ancestors = @status.reply? ? cache_collection(@status.ancestors(ANCESTORS_LIMIT, current_account), Status) : []
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@next_ancestor = @ancestors.size < ANCESTORS_LIMIT ? nil : @ancestors.shift
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end
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def set_descendants
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@max_descendant_thread_id = params[:max_descendant_thread_id]&.to_i
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@since_descendant_thread_id = params[:since_descendant_thread_id]&.to_i
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descendants = cache_collection(
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@status.descendants(
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DESCENDANTS_LIMIT,
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current_account,
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@max_descendant_thread_id,
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@since_descendant_thread_id,
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DESCENDANTS_DEPTH_LIMIT
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),
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Status
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)
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@descendant_threads = []
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if descendants.present?
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statuses = [descendants.first]
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starting_depth = 0
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descendants.drop(1).each_with_index do |descendant, index|
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if descendants[index].id == descendant.in_reply_to_id
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statuses << descendant
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else
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@descendant_threads << create_descendant_thread(starting_depth, statuses)
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# The thread is broken, assume it's a reply to the root status
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starting_depth = 0
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# ... unless we can find its ancestor in one of the already-processed threads
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@descendant_threads.reverse_each do |descendant_thread|
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statuses = descendant_thread[:statuses]
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index = statuses.find_index do |thread_status|
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thread_status.id == descendant.in_reply_to_id
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end
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if index.present?
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starting_depth = descendant_thread[:starting_depth] + index + 1
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break
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end
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end
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statuses = [descendant]
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end
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end
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@descendant_threads << create_descendant_thread(starting_depth, statuses)
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end
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@max_descendant_thread_id = @descendant_threads.pop[:statuses].first.id if descendants.size >= DESCENDANTS_LIMIT
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end
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end
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