34057b25e1
Add a polymorphic `subject` field that records the subject of the mod action. The subject is the post, user, comment, artist, etc the mod action is for. * The subject for the user ban and unban actions is the user, not the ban itself. * The subject for the user feedback update and deletion actions is the user, not the feedback itself. * The subject for the post undeletion action is the post, not the approval itself. * The subject for the move favorites action is the source post where the favorites were moved from, not the destination post where the favorites were moved to. * The subject for the post permanent delete action is nil, because the post itself is hard deleted. * When a post is permanently deleted, all mod actions related to the post are deleted as well.
107 lines
2.8 KiB
Ruby
107 lines
2.8 KiB
Ruby
# frozen_string_literal: true
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# Delete a user's account. Deleting an account really just deactivates the
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# account, it doesn't fully delete the user from the database. It wipes their
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# username, password, account settings, favorites, and saved searches, and logs
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# the deletion.
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class UserDeletion
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include ActiveModel::Validations
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attr_reader :user, :deleter, :password, :request
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validate :validate_deletion
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# Initialize a user deletion.
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# @param user [User] the user to delete
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# @param user [User] the user performing the deletion
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# @param password [String] the user's password (for confirmation)
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# @param request the HTTP request (for logging the deletion in the user event log)
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def initialize(user:, deleter: user, password: nil, request: nil)
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@user = user
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@deleter = deleter
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@password = password
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@request = request
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end
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# Delete the account, if the deletion is allowed.
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# @return [Boolean] if the deletion failed
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# @return [User] if the deletion succeeded
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def delete!
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return false if invalid?
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clear_user_settings
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remove_favorites
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clear_saved_searches
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rename
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reset_password
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create_mod_action
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create_user_event
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user
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end
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private
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def create_mod_action
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ModAction.log("deleted user ##{user.id}", :user_delete, subject: user, user: deleter)
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end
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def create_user_event
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UserEvent.create_from_request!(user, :user_deletion, request) if request.present?
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end
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def clear_saved_searches
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SavedSearch.where(user_id: user.id).destroy_all
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end
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def clear_user_settings
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user.email_address = nil
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user.last_logged_in_at = nil
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user.last_forum_read_at = nil
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user.favorite_tags = ""
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user.blacklisted_tags = ""
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user.show_deleted_children = false
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user.time_zone = "Eastern Time (US & Canada)"
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user.save!
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end
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def reset_password
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user.update!(password: SecureRandom.hex(16))
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end
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def remove_favorites
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DeleteFavoritesJob.perform_later(user)
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end
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def rename
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name = "user_#{user.id}"
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name += "~" while User.exists?(name: name)
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request = UserNameChangeRequest.new(user: user, desired_name: name, original_name: user.name)
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request.save!(validate: false) # XXX don't validate so that the 1 name change per week rule doesn't interfere
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end
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def validate_deletion
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if user == deleter
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if !user.authenticate_password(password)
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errors.add(:base, "Password is incorrect")
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end
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if user.is_admin?
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errors.add(:base, "Admins cannot delete their account")
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end
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if user.is_banned?
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errors.add(:base, "You cannot delete your account if you are banned")
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end
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else
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if !deleter.is_owner?
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errors.add(:base, "You cannot delete an account belonging to another user")
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end
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if user.is_gold?
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errors.add(:base, "You cannot delete a privileged account")
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end
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end
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end
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end
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