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require 'bundler/vendored_persistent'
module Bundler
# This is the error raised if OpenSSL fails the cert verification
class CertificateFailureError < HTTPError
def initialize(message = nil)
@message = message
@message ||= "\nCould not verify the SSL certificate for " \
"#{@remote_uri}. Either you don't have the CA certificates needed to " \
"verify it, or you are experiencing a man-in-the-middle attack. To " \
"connect without using SSL, edit your Gemfile sources to and change " \
"'https' to 'http'."
end
end
# Handles all the fetching with the rubygems server
class Fetcher
REDIRECT_LIMIT = 5
# how long to wait for each gemcutter API call
API_TIMEOUT = 10
class FallbackError < Bundler::HTTPError; end
class << self
attr_accessor :disable_endpoint
@@spec_fetch_map ||= {}
def fetch(spec)
spec, uri = @@spec_fetch_map[spec.full_name]
if spec
path = download_gem_from_uri(spec, uri)
s = Bundler.rubygems.spec_from_gem(path, Bundler.settings["trust-policy"])
spec.__swap__(s)
end
end
def download_gem_from_uri(spec, uri)
spec.fetch_platform
download_path = Bundler.requires_sudo? ? Bundler.tmp : Bundler.rubygems.gem_dir
gem_path = "#{Bundler.rubygems.gem_dir}/cache/#{spec.full_name}.gem"
FileUtils.mkdir_p("#{download_path}/cache")
Bundler.rubygems.download_gem(spec, uri, download_path)
if Bundler.requires_sudo?
Bundler.mkdir_p "#{Bundler.rubygems.gem_dir}/cache"
Bundler.sudo "mv #{Bundler.tmp}/cache/#{spec.full_name}.gem #{gem_path}"
end
gem_path
end
end
def initialize(remote_uri)
@remote_uri = remote_uri
@public_uri = remote_uri.dup
@public_uri.user, @public_uri.password = nil, nil # don't print these
@connection ||= Net::HTTP::Persistent.new 'bundler', :ENV
@connection.read_timeout = API_TIMEOUT
Socket.do_not_reverse_lookup = true
end
# fetch a gem specification
def fetch_spec(spec)
spec = spec - [nil, 'ruby', '']
spec_file_name = "#{spec.join '-'}.gemspec.rz"
uri = URI.parse("#{@remote_uri}#{Gem::MARSHAL_SPEC_DIR}#{spec_file_name}")
spec_rz = (uri.scheme == "file") ? Gem.read_binary(uri.path) : fetch(uri)
Marshal.load Gem.inflate(spec_rz)
end
# return the specs in the bundler format as an index
def specs(gem_names, source)
index = Index.new
specs = nil
if !gem_names || !use_api
Bundler.ui.info "Fetching source index from #{@public_uri}"
specs = fetch_all_remote_specs
else
Bundler.ui.info "Fetching gem metadata from #{@public_uri}", Bundler.ui.debug?
begin
specs = fetch_remote_specs(gem_names)
# fall back to the legacy index in the following cases
# 1. Gemcutter Endpoint doesn't return a 200
# 2,3. Marshal blob doesn't load properly
# 4. One of the YAML gemspecs has the Syck::DefaultKey problem
rescue HTTPError, ArgumentError, TypeError, GemspecError => e
# API errors mean we should treat this as a non-API source
@use_api = false
# new line now that the dots are over
Bundler.ui.info "" unless Bundler.ui.debug?
if FallbackError === e
Bundler.ui.debug "API refused request: #{e.message}"
else
Bundler.ui.debug "Error during API request. #{e.class}: #{e.message}"
end
Bundler.ui.info "Fetching full source index from #{@public_uri}"
specs = fetch_all_remote_specs
else
# new line now that the dots are over
Bundler.ui.info "" unless Bundler.ui.debug?
end
end
specs[@remote_uri].each do |name, version, platform, dependencies|
next if name == 'bundler'
spec = nil
if dependencies
spec = EndpointSpecification.new(name, version, platform, dependencies)
else
spec = RemoteSpecification.new(name, version, platform, self)
end
spec.source = source
@@spec_fetch_map[spec.full_name] = [spec, @remote_uri]
index << spec
end
index
rescue OpenSSL::SSL::SSLError
raise CertificateFailureError.new
end
# fetch index
def fetch_remote_specs(gem_names, full_dependency_list = [], last_spec_list = [])
query_list = gem_names - full_dependency_list
# only display the message on the first run
if Bundler.ui.debug?
Bundler.ui.debug "Query List: #{query_list.inspect}"
else
Bundler.ui.info ".", false
end
return {@remote_uri => last_spec_list} if query_list.empty?
spec_list, deps_list = fetch_dependency_remote_specs(query_list)
returned_gems = spec_list.map {|spec| spec.first }.uniq
fetch_remote_specs(deps_list, full_dependency_list + returned_gems, spec_list + last_spec_list)
end
def use_api
return @use_api if defined?(@use_api)
if @remote_uri.scheme == "file" || Bundler::Fetcher.disable_endpoint
@use_api = false
elsif fetch(dependency_api_uri)
@use_api = true
end
rescue HTTPError
@use_api = false
end
def inspect
"#<#{self.class}:0x#{object_id} uri=#{@public_uri.to_s}>"
end
private
def fetch(uri, counter = 0)
raise HTTPError, "Too many redirects" if counter >= REDIRECT_LIMIT
begin
Bundler.ui.debug "Fetching from: #{uri}"
response = @connection.request(uri)
rescue Timeout::Error, Errno::EINVAL, Errno::ECONNRESET, Errno::ETIMEDOUT,
EOFError, SocketError, Net::HTTPBadResponse, Net::HTTPHeaderSyntaxError,
Errno::EAGAIN, Net::HTTP::Persistent::Error, Net::ProtocolError
raise HTTPError, "Network error while fetching #{uri}"
end
case response
when Net::HTTPRedirection
Bundler.ui.debug("HTTP Redirection")
new_uri = URI.parse(response["location"])
if new_uri.host == uri.host
new_uri.user = uri.user
new_uri.password = uri.password
end
fetch(new_uri, counter + 1)
when Net::HTTPSuccess
Bundler.ui.debug("HTTP Success")
response.body
when Net::HTTPRequestEntityTooLarge
raise FallbackError, response.body
else
raise HTTPError, "#{response.class}: #{response.body}"
end
end
def dependency_api_uri(gem_names = [])
url = "#{@remote_uri}api/v1/dependencies"
url << "?gems=#{URI.encode(gem_names.join(","))}" if gem_names.any?
URI.parse(url)
end
# fetch from Gemcutter Dependency Endpoint API
def fetch_dependency_remote_specs(gem_names)
Bundler.ui.debug "Query Gemcutter Dependency Endpoint API: #{gem_names.join(',')}"
marshalled_deps = fetch dependency_api_uri(gem_names)
gem_list = Marshal.load(marshalled_deps)
deps_list = []
spec_list = gem_list.map do |s|
dependencies = s[:dependencies].map do |d|
begin
name, requirement = d
dep = Gem::Dependency.new(name, requirement.split(", "))
rescue ArgumentError => e
if e.message.include?('Ill-formed requirement ["#<YAML::Syck::DefaultKey')
puts # we shouldn't print the error message on the "fetching info" status line
raise GemspecError,
"Unfortunately, the gem #{s[:name]} (#{s[:number]}) has an invalid gemspec. \n" \
"Please ask the gem author to yank the bad version to fix this issue. For \n" \
"more information, see http://bit.ly/syck-defaultkey."
else
raise e
end
end
deps_list << dep.name
dep
end
[s[:name], Gem::Version.new(s[:number]), s[:platform], dependencies]
end
[spec_list, deps_list.uniq]
end
# fetch from modern index: specs.4.8.gz
def fetch_all_remote_specs
Bundler.rubygems.sources = ["#{@remote_uri}"]
Bundler.rubygems.fetch_all_remote_specs
rescue Gem::RemoteFetcher::FetchError => e
if e.message.match("certificate verify failed")
raise CertificateFailureError.new
else
raise HTTPError, "Could not fetch specs from #{@public_uri}"
end
end
end
end
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