gitlab-org--gitlab-foss/lib/gitlab/email/handler/reply_processing.rb
Heinrich Lee Yu 35b8f103a8
Prevent comments by email when issue is locked
This changes the permission check so it uses the policy on Noteable
instead of Project. This prevents bypassing of rules defined in
Noteable for locked discussions and confidential issues.

Also rechecks permissions when reply_to_discussion_id is provided since the
discussion_id may be from a different noteable.
2019-01-31 16:52:48 +01:00

81 lines
2.2 KiB
Ruby

# frozen_string_literal: true
module Gitlab
module Email
module Handler
module ReplyProcessing
private
attr_reader :project_id, :project_slug, :project_path, :incoming_email_token
def author
raise NotImplementedError
end
# rubocop:disable Gitlab/ModuleWithInstanceVariables
def project
return @project if instance_variable_defined?(:@project)
if project_id
@project = Project.find_by_id(project_id)
@project = nil unless valid_project_slug?(@project)
else
@project = Project.find_by_full_path(project_path)
end
@project
end
# rubocop:enable Gitlab/ModuleWithInstanceVariables
def message
@message ||= process_message
end
def message_including_reply
@message_with_reply ||= process_message(trim_reply: false)
end
def process_message(**kwargs)
message = ReplyParser.new(mail, **kwargs).execute.strip
add_attachments(message)
end
def add_attachments(reply)
attachments = Email::AttachmentUploader.new(mail).execute(project)
reply + attachments.map do |link|
"\n\n#{link[:markdown]}"
end.join
end
def validate_permission!(permission)
raise UserNotFoundError unless author
raise UserBlockedError if author.blocked?
if project
raise ProjectNotFound unless author.can?(:read_project, project)
end
raise UserNotAuthorizedError unless author.can?(permission, try(:noteable) || project)
end
def verify_record!(record:, invalid_exception:, record_name:)
return if record.persisted?
return if record.errors.key?(:commands_only)
error_title = "The #{record_name} could not be created for the following reasons:"
msg = error_title + record.errors.full_messages.map do |error|
"\n\n- #{error}"
end.join
raise invalid_exception, msg
end
def valid_project_slug?(found_project)
project_slug == found_project.full_path_slug
end
end
end
end
end