134 lines
3.9 KiB
Ruby
134 lines
3.9 KiB
Ruby
# frozen_string_literal: true
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require "tempfile"
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require "tmpdir"
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require "fileutils"
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class UploadedFile
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InvalidPathError = Class.new(StandardError)
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UnknownSizeError = Class.new(StandardError)
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# The filename, *not* including the path, of the "uploaded" file
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attr_reader :original_filename
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# The tempfile
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attr_reader :tempfile
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# The content type of the "uploaded" file
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attr_accessor :content_type
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attr_reader :remote_id
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attr_reader :sha256
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attr_reader :size
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def initialize(path, filename: nil, content_type: "application/octet-stream", sha256: nil, remote_id: nil, size: nil)
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if path.present?
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raise InvalidPathError, "#{path} file does not exist" unless ::File.exist?(path)
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@tempfile = File.new(path, 'rb')
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@size = @tempfile.size
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else
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begin
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@size = Integer(size)
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rescue ArgumentError, TypeError
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raise UnknownSizeError, 'Unable to determine file size'
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end
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end
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@content_type = content_type
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@original_filename = sanitize_filename(filename || path || '')
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@content_type = content_type
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@sha256 = sha256
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@remote_id = remote_id
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end
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# TODO this function is meant to replace .from_params when the feature flag
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# upload_middleware_jwt_params_handler is removed
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# See https://gitlab.com/gitlab-org/gitlab/-/issues/233895#roll-out-steps
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def self.from_params_without_field(params, upload_paths)
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path = params['path']
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remote_id = params['remote_id']
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return if path.blank? && remote_id.blank?
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# don't use file_path if remote_id is set
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if remote_id.present?
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file_path = nil
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elsif path.present?
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file_path = File.realpath(path)
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unless self.allowed_path?(file_path, Array(upload_paths).compact)
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raise InvalidPathError, "insecure path used '#{file_path}'"
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end
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end
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UploadedFile.new(
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file_path,
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filename: params['name'],
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content_type: params['type'] || 'application/octet-stream',
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sha256: params['sha256'],
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remote_id: remote_id,
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size: params['size']
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)
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end
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# Deprecated. Don't use it.
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# .from_params_without_field will replace this one
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# See .from_params_without_field and
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# https://gitlab.com/gitlab-org/gitlab/-/issues/233895#roll-out-steps
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def self.from_params(params, field, upload_paths, path_override = nil)
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path = path_override || params["#{field}.path"]
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remote_id = params["#{field}.remote_id"]
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return if path.blank? && remote_id.blank?
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if remote_id.present? # don't use file_path if remote_id is set
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file_path = nil
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elsif path.present?
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file_path = File.realpath(path)
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unless self.allowed_path?(file_path, Array(upload_paths).compact)
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raise InvalidPathError, "insecure path used '#{file_path}'"
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end
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end
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UploadedFile.new(file_path,
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filename: params["#{field}.name"],
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content_type: params["#{field}.type"] || 'application/octet-stream',
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sha256: params["#{field}.sha256"],
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remote_id: remote_id,
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size: params["#{field}.size"])
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end
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def self.allowed_path?(file_path, paths)
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paths.any? do |path|
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File.exist?(path) && file_path.start_with?(File.realpath(path))
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end
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end
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# copy-pasted from CarrierWave::SanitizedFile
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def sanitize_filename(name)
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name = name.tr("\\", "/") # work-around for IE
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name = ::File.basename(name)
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name = name.gsub(CarrierWave::SanitizedFile.sanitize_regexp, "_")
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name = "_#{name}" if name =~ /\A\.+\z/
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name = "unnamed" if name.empty?
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name.mb_chars.to_s
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end
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def path
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@tempfile&.path
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end
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def close
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@tempfile&.close
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end
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alias_method :local_path, :path
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def method_missing(method_name, *args, &block) #:nodoc:
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@tempfile.__send__(method_name, *args, &block) # rubocop:disable GitlabSecurity/PublicSend
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end
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def respond_to?(method_name, include_private = false) #:nodoc:
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@tempfile.respond_to?(method_name, include_private) || super
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end
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end
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