require 'rubygems/request/connection_pools'

require 'rubygems/s3_uri_signer'

require 'rubygems/uri_formatter'

require 'rubygems/user_interaction'

require 'resolv'

class Gem::RemoteFetcher

include Gem::UserInteraction

##

# A FetchError exception wraps up the various possible IO and HTTP failures

# that could happen while downloading from the internet.

class FetchError < Gem::Exception

##

# The URI which was being accessed when the exception happened.

def initialize(message, uri)

super message

@original_uri = uri.dup

@proxy = proxy

@pools = {}

@cert_files = Gem::Request.get_cert_files

@headers = headers

require "fileutils"

FileUtils.mkdir_p cache_dir rescue nil unless File.exist? cache_dir

scheme = source_uri.scheme

unless location = response['Location']

raise FetchError.new("redirecting but no redirect location was given", uri)

end

if https?(uri) && !https?(location)

raise FetchError.new("redirecting to non-https resource: #{location}", uri)

# Downloads +uri+ and returns it as a String.

def fetch_path(uri, mtime = nil, head = false)

unless uri.scheme

raise ArgumentError, "uri scheme is invalid: #{uri.scheme.inspect}"