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require 'bundler/vendored_persistent'
require 'cgi'
require 'securerandom'
module Bundler
# Handles all the fetching with the rubygems server
class Fetcher
autoload :Downloader, 'bundler/fetcher/downloader'
autoload :Dependency, 'bundler/fetcher/dependency'
autoload :Index, 'bundler/fetcher/index'
# This error is raised when it looks like the network is down
class NetworkDownError < HTTPError; end
# This error is raised if the API returns a 413 (only printed in verbose)
class FallbackError < HTTPError; end
# This is the error raised if OpenSSL fails the cert verification
class CertificateFailureError < HTTPError
def initialize(remote_uri)
super "Could not verify the SSL certificate for #{remote_uri}.\nThere" \
" is a chance you are experiencing a man-in-the-middle attack, but" \
" most likely your system doesn't have the CA certificates needed" \
" for verification. For information about OpenSSL certificates, see" \
" bit.ly/ruby-ssl. To connect without using SSL, edit your Gemfile" \
" sources and change 'https' to 'http'."
end
end
# This is the error raised when a source is HTTPS and OpenSSL didn't load
class SSLError < HTTPError
def initialize(msg = nil)
super msg || "Could not load OpenSSL.\n" \
"You must recompile Ruby with OpenSSL support or change the sources in your " \
"Gemfile from 'https' to 'http'. Instructions for compiling with OpenSSL " \
"using RVM are available at rvm.io/packages/openssl."
end
end
# This error is raised if HTTP authentication is required, but not provided.
class AuthenticationRequiredError < HTTPError
def initialize(remote_uri)
super "Authentication is required for #{remote_uri}.\n" \
"Please supply credentials for this source. You can do this by running:\n" \
" bundle config #{remote_uri} username:password"
end
end
# This error is raised if HTTP authentication is provided, but incorrect.
class BadAuthenticationError < HTTPError
def initialize(remote_uri)
super "Bad username or password for #{remote_uri}.\n" \
"Please double-check your credentials and correct them."
end
end
# Exceptions classes that should bypass retry attempts. If your password didn't work the
# first time, it's not going to the third time.
AUTH_ERRORS = [AuthenticationRequiredError, BadAuthenticationError]
class << self
attr_accessor :disable_endpoint, :api_timeout, :redirect_limit, :max_retries
end
self.redirect_limit = Bundler.settings[:redirect] # How many redirects to allow in one request
self.api_timeout = Bundler.settings[:timeout] # How long to wait for each API call
self.max_retries = Bundler.settings[:retry] # How many retries for the API call
def initialize(remote)
@remote = remote
Socket.do_not_reverse_lookup = true
connection # create persistent connection
end
def uri
@remote.anonymized_uri
end
# fetch a gem specification
def fetch_spec(spec)
spec = spec - [nil, 'ruby', '']
spec_file_name = "#{spec.join '-'}.gemspec"
uri = URI.parse("#{remote_uri}#{Gem::MARSHAL_SPEC_DIR}#{spec_file_name}.rz")
if uri.scheme == 'file'
Bundler.load_marshal Gem.inflate(Gem.read_binary(uri.path))
elsif cached_spec_path = gemspec_cached_path(spec_file_name)
Bundler.load_gemspec(cached_spec_path)
else
Bundler.load_marshal Gem.inflate(downloader.fetch uri)
end
rescue MarshalError
raise HTTPError, "Gemspec #{spec} contained invalid data.\n" \
"Your network or your gem server is probably having issues right now."
end
# return the specs in the bundler format as an index
def specs(gem_names, source)
old = Bundler.rubygems.sources
index = Bundler::Index.new
specs = {}
fetchers.dup.each do |f|
unless f.api_fetcher? && !gem_names
break if specs = f.specs(gem_names)
end
fetchers.delete(f)
end
@use_api = false if fetchers.none?(&:api_fetcher?)
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.remote = @remote
index << spec
end
index
rescue CertificateFailureError
Bundler.ui.info "" if gem_names && use_api # newline after dots
raise
ensure
Bundler.rubygems.sources = old
end
def use_api
return @use_api if defined?(@use_api)
if remote_uri.scheme == "file" || Bundler::Fetcher.disable_endpoint
@use_api = false
else
fetchers.reject! { |f| f.api_fetcher? && !f.api_available? }
@use_api = fetchers.any?(&:api_fetcher?)
end
end
def user_agent
@user_agent ||= begin
ruby = Bundler.ruby_version
agent = "bundler/#{Bundler::VERSION}"
agent << " rubygems/#{Gem::VERSION}"
agent << " ruby/#{ruby.version}"
agent << " (#{ruby.host})"
agent << " command/#{ARGV.first}"
if ruby.engine != "ruby"
# engine_version raises on unknown engines
engine_version = ruby.engine_version rescue "???"
agent << " #{ruby.engine}/#{engine_version}"
end
agent << " options/#{Bundler.settings.all.join(",")}"
# add a random ID so we can consolidate runs server-side
agent << " " << SecureRandom.hex(8)
# add any user agent strings set in the config
extra_ua = Bundler.settings[:user_agent]
agent << " " << extra_ua if extra_ua
agent
end
end
def fetchers
@fetchers ||= FETCHERS.map { |f| f.new(downloader, remote_uri, fetch_uri, uri) }
end
def inspect
"#<#{self.class}:0x#{object_id} uri=#{uri}>"
end
private
FETCHERS = [Dependency, Index]
def connection
@connection ||= begin
needs_ssl = remote_uri.scheme == "https" ||
Bundler.settings[:ssl_verify_mode] ||
Bundler.settings[:ssl_client_cert]
raise SSLError if needs_ssl && !defined?(OpenSSL::SSL)
con = Net::HTTP::Persistent.new 'bundler', :ENV
if remote_uri.scheme == "https"
con.verify_mode = (Bundler.settings[:ssl_verify_mode] ||
OpenSSL::SSL::VERIFY_PEER)
con.cert_store = bundler_cert_store
end
if Bundler.settings[:ssl_client_cert]
pem = File.read(Bundler.settings[:ssl_client_cert])
con.cert = OpenSSL::X509::Certificate.new(pem)
con.key = OpenSSL::PKey::RSA.new(pem)
end
con.read_timeout = Fetcher.api_timeout
con.override_headers["User-Agent"] = user_agent
con
end
end
# cached gem specification path, if one exists
def gemspec_cached_path spec_file_name
paths = Bundler.rubygems.spec_cache_dirs.map { |dir| File.join(dir, spec_file_name) }
paths = paths.select {|path| File.file? path }
paths.first
end
HTTP_ERRORS = [
Timeout::Error, EOFError, SocketError, Errno::ENETDOWN,
Errno::EINVAL, Errno::ECONNRESET, Errno::ETIMEDOUT, Errno::EAGAIN,
Net::HTTPBadResponse, Net::HTTPHeaderSyntaxError, Net::ProtocolError,
Net::HTTP::Persistent::Error
]
def bundler_cert_store
store = OpenSSL::X509::Store.new
if Bundler.settings[:ssl_ca_cert]
if File.directory? Bundler.settings[:ssl_ca_cert]
store.add_path Bundler.settings[:ssl_ca_cert]
else
store.add_file Bundler.settings[:ssl_ca_cert]
end
else
store.set_default_paths
certs = File.expand_path("../ssl_certs/*.pem", __FILE__)
Dir.glob(certs).each { |c| store.add_file c }
end
store
end
private
def fetch_uri
@fetch_uri ||= begin
if remote_uri.host == "rubygems.org"
uri = remote_uri.dup
uri.host = "bundler.rubygems.org"
uri
else
remote_uri
end
end
end
def remote_uri
@remote.uri
end
def downloader
@downloader ||= Downloader.new(connection, self.class.redirect_limit)
end
end
end
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