Change deletes to preserve soft-deleted statuses in unresolved reports (mastodon#11805)

Gargron · hiyuki2578 · commit 2d3087ffd16e · 2019-10-02T10:38:33.000+09:00
Change all account actions except "none" to resolve all unresolved reports

Refactor `SuspendAccountService` to be more readable
diff --git a/app/controllers/admin/accounts_controller.rb b/app/controllers/admin/accounts_controller.rb
@@ -41,7 +41,7 @@ def approve
 
     def reject
       authorize @account.user, :reject?
-      SuspendAccountService.new.call(@account, including_user: true, destroy: true, skip_distribution: true)
+      SuspendAccountService.new.call(@account, reserve_email: false, reserve_username: false)
       redirect_to admin_pending_accounts_path
     end
 
diff --git a/app/controllers/admin/report_notes_controller.rb b/app/controllers/admin/report_notes_controller.rb
@@ -5,10 +5,10 @@ class ReportNotesController < BaseController
     before_action :set_report_note, only: [:destroy]
 
     def create
-      authorize ReportNote, :create?
+      authorize :report_note, :create?
 
       @report_note = current_account.report_notes.new(resource_params)
-      @report = @report_note.report
+      @report      = @report_note.report
 
       if @report_note.save
         if params[:create_and_resolve]
@@ -26,9 +26,8 @@ def create
 
         redirect_to admin_report_path(@report), notice: I18n.t('admin.report_notes.created_msg')
       else
-        @report_notes = @report.notes.latest
-        @report_history = @report.history
-        @form = Form::StatusBatch.new
+        @report_notes = (@report.notes.latest + @report.history + @report.target_account.targeted_account_warnings.latest.custom).sort_by(&:created_at)
+        @form         = Form::StatusBatch.new
 
         render template: 'admin/reports/show'
       end
diff --git a/app/controllers/api/v1/admin/accounts_controller.rb b/app/controllers/api/v1/admin/accounts_controller.rb
@@ -58,7 +58,7 @@ def approve
 
   def reject
     authorize @account.user, :reject?
-    SuspendAccountService.new.call(@account, including_user: true, destroy: true, skip_distribution: true)
+    SuspendAccountService.new.call(@account, reserve_email: false, reserve_username: false)
     render json: @account, serializer: REST::Admin::AccountSerializer
   end
 
diff --git a/app/lib/activitypub/activity/delete.rb b/app/lib/activitypub/activity/delete.rb
@@ -13,8 +13,7 @@ def perform
 
   def delete_person
     lock_or_return("delete_in_progress:#{@account.id}") do
-      SuspendAccountService.new.call(@account)
-      @account.destroy!
+      SuspendAccountService.new.call(@account, reserve_username: false)
     end
   end
 
diff --git a/app/models/account.rb b/app/models/account.rb
@@ -116,6 +116,7 @@ class Account < ApplicationRecord
            :approved?,
            :pending?,
            :disabled?,
+           :unconfirmed_or_pending?,
            :role,
            :admin?,
            :moderator?,
diff --git a/app/models/admin/account_action.rb b/app/models/admin/account_action.rb
@@ -83,19 +83,23 @@ def process_warning!
 
     # A log entry is only interesting if the warning contains
     # custom text from someone. Otherwise it's just noise.
+
     log_action(:create, warning) if warning.text.present?
   end
 
   def process_reports!
-    return if report_id.blank?
+    # If we're doing "mark as resolved" on a single report,
+    # then we want to keep other reports open in case they
+    # contain new actionable information.
+    #
+    # Otherwise, we will mark all unresolved reports about
+    # the account as resolved.
 
-    authorize(report, :update?)
+    reports.each { |report| authorize(report, :update?) }
 
-    if type == 'none'
+    reports.each do |report|
       log_action(:resolve, report)
       report.resolve!(current_account)
-    else
-      Report.where(target_account: target_account).unresolved.update_all(action_taken: true, action_taken_by_account_id: current_account.id)
     end
   end
 
@@ -141,6 +145,16 @@ def status_ids
     @report.status_ids if @report && include_statuses
   end
 
+  def reports
+    @reports ||= begin
+      if type == 'none' && with_report?
+        [report]
+      else
+        Report.where(target_account: target_account).unresolved
+      end
+    end
+  end
+
   def warning_preset
     @warning_preset ||= AccountWarningPreset.find(warning_preset_id) if warning_preset_id.present?
   end
diff --git a/app/models/form/account_batch.rb b/app/models/form/account_batch.rb
@@ -69,6 +69,6 @@ def reject!
     records = accounts.includes(:user)
 
     records.each { |account| authorize(account.user, :reject?) }
-           .each { |account| SuspendAccountService.new.call(account, including_user: true, destroy: true, skip_distribution: true) }
+           .each { |account| SuspendAccountService.new.call(account, reserve_email: false, reserve_username: false) }
   end
 end
diff --git a/app/models/form/status_batch.rb b/app/models/form/status_batch.rb
@@ -35,7 +35,7 @@ def change_sensitive(sensitive)
   def delete_statuses
     Status.where(id: status_ids).reorder(nil).find_each do |status|
       status.discard
-      RemovalWorker.perform_async(status.id, redraft: false)
+      RemovalWorker.perform_async(status.id, immediate: true)
       Tombstone.find_or_create_by(uri: status.uri, account: status.account, by_moderator: true)
       log_action :destroy, status
     end
diff --git a/app/models/report.rb b/app/models/report.rb
@@ -59,6 +59,7 @@ def unassign!
   end
 
   def resolve!(acting_account)
+    RemovalWorker.push_bulk(Status.with_discarded.discarded.where(id: status_ids).pluck(:id)) { |status_id| [status_id, { immediate: true }] }
     update!(action_taken: true, action_taken_by_account_id: acting_account.id)
   end
 
diff --git a/app/models/status.rb b/app/models/status.rb
@@ -217,6 +217,10 @@ def non_sensitive_with_media?
     !sensitive? && with_media?
   end
 
+  def reported?
+    @reported ||= Report.where(target_account: account).unresolved.where('? = ANY(status_ids)', id).exists?
+  end
+
   def emojis
     return @emojis if defined?(@emojis)
 
diff --git a/app/models/user.rb b/app/models/user.rb
@@ -171,6 +171,10 @@ def functional?
     confirmed? && approved? && !disabled? && !account.suspended?
   end
 
+  def unconfirmed_or_pending?
+    !(confirmed? && approved?)
+  end
+
   def inactive_message
     !approved? ? :pending : super
   end
diff --git a/app/services/block_domain_service.rb b/app/services/block_domain_service.rb
@@ -53,7 +53,7 @@ def clear_media!
 
   def suspend_accounts!
     blocked_domain_accounts.without_suspended.reorder(nil).find_each do |account|
-      SuspendAccountService.new.call(account, suspended_at: @domain_block.created_at)
+      SuspendAccountService.new.call(account, reserve_username: true, suspended_at: @domain_block.created_at)
     end
   end
 
diff --git a/app/services/remove_status_service.rb b/app/services/remove_status_service.rb
@@ -8,7 +8,8 @@ class RemoveStatusService < BaseService
   # @param   [Status] status
   # @param   [Hash] options
   # @option  [Boolean] :redraft
-  # @options [Boolean] :original_removed
+  # @option  [Boolean] :immediate
+  # @option [Boolean] :original_removed
   def call(status, **options)
     @payload  = Oj.dump(event: :delete, payload: status.id.to_s)
     @status   = status
@@ -31,7 +32,7 @@ def call(status, **options)
         remove_from_spam_check
         remove_media
 
-        @status.destroy!
+        @status.destroy! if @options[:immediate] || !@status.reported?
       else
         raise Mastodon::RaceConditionError
       end
@@ -150,7 +151,7 @@ def remove_from_media
   end
 
   def remove_media
-    return if @options[:redraft]
+    return if @options[:redraft] || (!@options[:immediate] && @status.reported?)
 
     @status.media_attachments.destroy_all
   end
diff --git a/app/services/suspend_account_service.rb b/app/services/suspend_account_service.rb
@@ -15,7 +15,6 @@ class SuspendAccountService < BaseService
     favourites
     follow_requests
     list_accounts
-    media_attachments
     mute_relationships
     muted_by_relationships
     notifications
@@ -32,14 +31,26 @@ class SuspendAccountService < BaseService
     targeted_reports
   ).freeze
 
-  # Suspend an account and remove as much of its data as possible
+  # Suspend or remove an account and remove as much of its data
+  # as possible. If it's a local account and it has not been confirmed
+  # or never been approved, then side effects are skipped and both
+  # the user and account records are removed fully. Otherwise,
+  # it is controlled by options.
   # @param [Account]
   # @param [Hash] options
-  # @option [Boolean] :including_user Remove the user record as well
-  # @option [Boolean] :destroy Remove the account record instead of suspending
+  # @option [Boolean] :reserve_email Keep user record. Only applicable for local accounts
+  # @option [Boolean] :reserve_username Keep account record
+  # @option [Boolean] :skip_side_effects Side effects are ActivityPub and streaming API payloads
+  # @option [Time]    :suspended_at Only applicable when :reserve_username is true
   def call(account, **options)
     @account = account
-    @options = options
+    @options = { reserve_username: true, reserve_email: true }.merge(options)
+
+    if @account.local? && @account.user_unconfirmed_or_pending?
+      @options[:reserve_email]     = false
+      @options[:reserve_username]  = false
+      @options[:skip_side_effects] = true
+    end
 
     reject_follows!
     purge_user!
@@ -60,46 +71,61 @@ def reject_follows!
   def purge_user!
     return if !@account.local? || @account.user.nil?
 
-    if @options[:including_user]
-      @options[:destroy] = true if !@account.user_confirmed? || @account.user_pending?
-      @account.user.destroy
-    else
+    if @options[:reserve_email]
       @account.user.disable!
       @account.user.invites.where(uses: 0).destroy_all
+    else
+      @account.user.destroy
     end
   end
 
   def purge_content!
-    distribute_delete_actor! if @account.local? && !@options[:skip_distribution]
+    distribute_delete_actor! if @account.local? && !@options[:skip_side_effects]
 
     @account.statuses.reorder(nil).find_in_batches do |statuses|
-      BatchedRemoveStatusService.new.call(statuses, skip_side_effects: @options[:destroy])
+      statuses.reject! { |status| reported_status_ids.include?(status.id) } if @options[:reserve_username]
+      BatchedRemoveStatusService.new.call(statuses, skip_side_effects: @options[:skip_side_effects])
+    end
+
+    @account.media_attachments.reorder(nil).find_each do |media_attachment|
+      next if @options[:reserve_username] && reported_status_ids.include?(media_attachment.status_id)
+
+      media_attachment.destroy
+    end
+
+    @account.polls.reorder(nil).find_each do |poll|
+      next if @options[:reserve_username] && reported_status_ids.include?(poll.status_id)
+
+      poll.destroy
     end
 
     associations_for_destruction.each do |association_name|
       destroy_all(@account.public_send(association_name))
     end
 
-    @account.destroy if @options[:destroy]
+    @account.destroy unless @options[:reserve_username]
   end
 
   def purge_profile!
     # If the account is going to be destroyed
     # there is no point wasting time updating
     # its values first
 
-    return if @options[:destroy]
+    return unless @options[:reserve_username]
 
     @account.silenced_at      = nil
     @account.suspended_at     = @options[:suspended_at] || Time.now.utc
     @account.locked           = false
+    @account.memorial         = false
+    @account.discoverable     = false
     @account.display_name     = ''
     @account.note             = ''
     @account.fields           = []
     @account.statuses_count   = 0
     @account.followers_count  = 0
     @account.following_count  = 0
     @account.moved_to_account = nil
+    @account.trust_level      = :untrusted
     @account.avatar.destroy
     @account.header.destroy
     @account.save!
@@ -135,11 +161,15 @@ def low_priority_delivery_inboxes
     Account.inboxes - delivery_inboxes
   end
 
+  def reported_status_ids
+    @reported_status_ids ||= Report.where(target_account: @account).unresolved.pluck(:status_ids).flatten.uniq
+  end
+
   def associations_for_destruction
-    if @options[:destroy]
-      ASSOCIATIONS_ON_SUSPEND + ASSOCIATIONS_ON_DESTROY
-    else
+    if @options[:reserve_username]
       ASSOCIATIONS_ON_SUSPEND
+    else
+      ASSOCIATIONS_ON_SUSPEND + ASSOCIATIONS_ON_DESTROY
     end
   end
 end
diff --git a/app/services/unallow_domain_service.rb b/app/services/unallow_domain_service.rb
@@ -3,7 +3,7 @@
 class UnallowDomainService < BaseService
   def call(domain_allow)
     Account.where(domain: domain_allow.domain).find_each do |account|
-      SuspendAccountService.new.call(account, destroy: true)
+      SuspendAccountService.new.call(account, reserve_username: false)
     end
 
     domain_allow.destroy
diff --git a/app/workers/admin/suspension_worker.rb b/app/workers/admin/suspension_worker.rb
@@ -6,6 +6,6 @@ class Admin::SuspensionWorker
   sidekiq_options queue: 'pull'
 
   def perform(account_id, remove_user = false)
-    SuspendAccountService.new.call(Account.find(account_id), including_user: remove_user)
+    SuspendAccountService.new.call(Account.find(account_id), reserve_username: true, reserve_email: !remove_user)
   end
 end
diff --git a/lib/mastodon/accounts_cli.rb b/lib/mastodon/accounts_cli.rb
@@ -185,7 +185,7 @@ def delete(username)
       end
 
       say("Deleting user with #{account.statuses_count} statuses, this might take a while...")
-      SuspendAccountService.new.call(account, including_user: true)
+      SuspendAccountService.new.call(account, reserve_email: false)
       say('OK', :green)
     end
 
@@ -239,7 +239,7 @@ def cull
         end
 
         if [404, 410].include?(code)
-          SuspendAccountService.new.call(account, destroy: true) unless options[:dry_run]
+          SuspendAccountService.new.call(account, reserve_username: false) unless options[:dry_run]
           1
         else
           # Touch account even during dry run to avoid getting the account into the window again
diff --git a/lib/mastodon/domains_cli.rb b/lib/mastodon/domains_cli.rb
@@ -42,7 +42,7 @@ def purge(domain = nil)
       end
 
       processed, = parallelize_with_progress(scope) do |account|
-        SuspendAccountService.new.call(account, destroy: true) unless options[:dry_run]
+        SuspendAccountService.new.call(account, reserve_username: false, skip_side_effects: true) unless options[:dry_run]
       end
 
       DomainBlock.where(domain: domain).destroy_all unless options[:dry_run]
diff --git a/spec/controllers/admin/reported_statuses_controller_spec.rb b/spec/controllers/admin/reported_statuses_controller_spec.rb
@@ -47,7 +47,7 @@
       it 'removes a status' do
         allow(RemovalWorker).to receive(:perform_async)
         subject.call
-        expect(RemovalWorker).to have_received(:perform_async).with(status_ids.first, redraft: false)
+        expect(RemovalWorker).to have_received(:perform_async).with(status_ids.first, immediate: true)
       end
     end
 
diff --git a/spec/controllers/admin/statuses_controller_spec.rb b/spec/controllers/admin/statuses_controller_spec.rb
@@ -65,7 +65,7 @@
       it 'removes a status' do
         allow(RemovalWorker).to receive(:perform_async)
         subject.call
-        expect(RemovalWorker).to have_received(:perform_async).with(status_ids.first, redraft: false)
+        expect(RemovalWorker).to have_received(:perform_async).with(status_ids.first, immediate: true)
       end
     end
 
diff --git a/spec/models/form/status_batch_spec.rb b/spec/models/form/status_batch_spec.rb
@@ -41,12 +41,12 @@
 
     it 'call RemovalWorker' do
       form.save
-      expect(RemovalWorker).to have_received(:perform_async).with(status.id, redraft: false)
+      expect(RemovalWorker).to have_received(:perform_async).with(status.id, immediate: true)
     end
 
     it 'do not call RemovalWorker' do
       form.save
-      expect(RemovalWorker).not_to have_received(:perform_async).with(another_status.id, redraft: false)
+      expect(RemovalWorker).not_to have_received(:perform_async).with(another_status.id, immediate: true)
     end
   end
 end
