71 lines
1.9 KiB
Ruby
71 lines
1.9 KiB
Ruby
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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# 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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def initialize(path, filename: nil, content_type: "application/octet-stream", sha256: nil, remote_id: nil)
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raise InvalidPathError, "#{path} file does not exist" unless ::File.exist?(path)
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@content_type = content_type
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@original_filename = filename || ::File.basename(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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@tempfile = File.new(path, 'rb')
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end
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def self.from_params(params, field, upload_path)
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unless params["#{field}.path"]
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raise InvalidPathError, "file is invalid" if params["#{field}.remote_id"]
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return
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end
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file_path = File.realpath(params["#{field}.path"])
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unless self.allowed_path?(file_path, [upload_path, Dir.tmpdir].compact)
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raise InvalidPathError, "insecure path used '#{file_path}'"
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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: params["#{field}.remote_id"])
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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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def path
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@tempfile.path
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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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