class Gem::CompactIndexClient::HTTPFetcher

# File lib/rubygems/compact_index_client/http_fetcher.rb, line 15
def initialize(base_uri, remote_fetcher = Gem::RemoteFetcher.fetcher)
  base_uri = base_uri.to_s
  base_uri += "/" unless base_uri.end_with?("/")
  @base_uri = Gem::URI(base_uri)
  @remote_fetcher = remote_fetcher
end

# File lib/rubygems/compact_index_client/http_fetcher.rb, line 22
def call(path, headers = {})
  fetch(@base_uri + path, headers, REDIRECT_LIMIT)
end

# File lib/rubygems/compact_index_client/http_fetcher.rb, line 28
def fetch(uri, headers, redirects_remaining)
  response = @remote_fetcher.request(uri, Gem::Net::HTTP::Get) do |req|
    headers.each {|name, value| req[name] = value }
  end

  case response
  when Gem::Net::HTTPSuccess, Gem::Net::HTTPNotModified
    response
  when Gem::Net::HTTPMovedPermanently, Gem::Net::HTTPFound, Gem::Net::HTTPSeeOther,
       Gem::Net::HTTPTemporaryRedirect, Gem::Net::HTTPPermanentRedirect
    raise Gem::RemoteFetcher::FetchError.new("too many redirects", uri) if redirects_remaining.zero?

    location = response["Location"]
    raise Gem::RemoteFetcher::FetchError.new("redirecting but no redirect location was given", uri) unless location

    fetch(uri + location, headers, redirects_remaining - 1)
  else
    raise Gem::RemoteFetcher::FetchError.new("bad response #{response.message} #{response.code}", uri)
  end
end