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# frozen_string_literal: true
require "tempfile"
require "tmpdir"
require "fileutils"
class UploadedFile
InvalidPathError = Class.new(StandardError)
UnknownSizeError = Class.new(StandardError)
ALLOWED_KWARGS = %i[filename content_type sha256 remote_id size upload_duration sha1 md5].freeze
# The filename, *not* including the path, of the "uploaded" file
attr_reader :original_filename
# The tempfile
attr_reader :tempfile
# The content type of the "uploaded" file
attr_accessor :content_type
attr_reader :remote_id, :sha256, :size, :upload_duration, :sha1, :md5
def initialize(path, **kwargs)
validate_kwargs(kwargs)
if path.present?
raise InvalidPathError, "#{path} file does not exist" unless ::File.exist?(path)
@tempfile = File.new(path, 'rb')
@size = @tempfile.size
else
begin
@size = Integer(kwargs[:size])
rescue ArgumentError, TypeError
raise UnknownSizeError, 'Unable to determine file size'
end
end
begin
@upload_duration = Float(kwargs[:upload_duration])
rescue ArgumentError, TypeError
@upload_duration = 0
end
@content_type = kwargs[:content_type] || 'application/octet-stream'
@original_filename = sanitize_filename(kwargs[:filename] || path || '')
@sha256 = kwargs[:sha256]
@sha1 = kwargs[:sha1]
@md5 = kwargs[:md5]
@remote_id = kwargs[:remote_id]
end
def self.from_params(params, upload_paths)
path = params['path']
remote_id = params['remote_id']
return if path.blank? && remote_id.blank?
# don't use file_path if remote_id is set
if remote_id.present?
file_path = nil
elsif path.present?
file_path = File.realpath(path)
unless self.allowed_path?(file_path, Array(upload_paths).compact)
raise InvalidPathError, "insecure path used '#{file_path}'"
end
end
new(
file_path,
filename: params['name'],
content_type: params['type'] || 'application/octet-stream',
sha256: params['sha256'],
remote_id: remote_id,
size: params['size'],
upload_duration: params['upload_duration'],
sha1: params['sha1'],
md5: params['md5']
).tap do |uploaded_file|
::Gitlab::Instrumentation::Uploads.track(uploaded_file)
end
end
def self.allowed_path?(file_path, paths)
paths.any? do |path|
File.exist?(path) && file_path.start_with?(File.realpath(path))
end
end
# copy-pasted from CarrierWave::SanitizedFile
def sanitize_filename(name)
name = name.tr("\\", "/") # work-around for IE
name = ::File.basename(name)
name = name.gsub(CarrierWave::SanitizedFile.sanitize_regexp, "_")
name = "_#{name}" if name =~ /\A\.+\z/
name = "unnamed" if name.empty?
name.mb_chars.to_s
end
def path
@tempfile&.path
end
def close
@tempfile&.close
end
alias_method :local_path, :path
def method_missing(method_name, *args, &block) #:nodoc:
@tempfile.__send__(method_name, *args, &block) # rubocop:disable GitlabSecurity/PublicSend
end
def respond_to?(method_name, include_private = false) #:nodoc:
@tempfile.respond_to?(method_name, include_private) || super
end
private
def validate_kwargs(kwargs)
invalid_kwargs = kwargs.keys - ALLOWED_KWARGS
raise ArgumentError, "unknown keyword(s): #{invalid_kwargs.join(', ')}" if invalid_kwargs.any?
end
end
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