Sha256: 1a9d032e1aaf298585b41027d8209fcf4ab6cc44380e942302872c6c94baf1eb
Contents?: true
Size: 1.75 KB
Versions: 7
Compression:
Stored size: 1.75 KB
Contents
# frozen_string_literal: true
# Alows reading the central directory of a remote ZIP file without
# downloading the entire file. The central directory provides the
# offsets at which the actual file contents is located. You can then
# use the `Range:` HTTP headers to download those entries separately.
#
# Please read the security warning in `FileReader` _VERY CAREFULLY_
# before you use this module.
class ZipTricks::RemoteUncap
# @param uri[String] the HTTP(S) URL to read the ZIP footer from
# @param reader_class[Class] which class to use for reading
# @param options_for_zip_reader[Hash] any additional options to give to
# {ZipTricks::FileReader} when reading
# @return [Array<ZipTricks::FileReader::ZipEntry>] metadata about the
# files within the remote archive
def self.files_within_zip_at(uri,
reader_class: ZipTricks::FileReader,
**options_for_zip_reader)
fetcher = new(uri)
fake_io = ZipTricks::RemoteIO.new(fetcher)
reader = reader_class.new
reader.read_zip_structure(io: fake_io, **options_for_zip_reader)
end
def initialize(uri)
@uri = URI(uri)
end
# Only used internally when reading the remote ZIP.
#
# @param range[Range] the HTTP range of data to fetch from remote
# @return [String] the response body of the ranged request
def request_range(range)
request = Net::HTTP::Get.new(@uri)
request.range = range
http = Net::HTTP.start(@uri.hostname, @uri.port)
http.request(request).body
end
# Only used internally when reading the remote ZIP.
#
# @return [Fixnum] the byte size of the ranged request
def request_object_size
http = Net::HTTP.start(@uri.hostname, @uri.port)
http.request_head(@uri)['Content-Length'].to_i
end
end
Version data entries
7 entries across 7 versions & 1 rubygems