JezK
Edit File: fetcher.rb
# frozen_string_literal: true require_relative "vendored_persistent" require "cgi" require "securerandom" require "zlib" require "rubygems/request" module Bundler # Handles all the fetching with the rubygems server class Fetcher autoload :CompactIndex, File.expand_path("fetcher/compact_index", __dir__) autoload :Downloader, File.expand_path("fetcher/downloader", __dir__) autoload :Dependency, File.expand_path("fetcher/dependency", __dir__) autoload :Index, File.expand_path("fetcher/index", __dir__) # This error is raised when it looks like the network is down class NetworkDownError < HTTPError; end # This error is raised if we should rate limit our requests to the API class TooManyRequestsError < 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) remote_uri = filter_uri(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" \ " https://railsapps.github.io/openssl-certificate-verify-failed.html." \ " 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) remote_uri = filter_uri(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 set --global #{remote_uri} username:password`\n" \ "or by storing the credentials in the `#{Settings.key_for(remote_uri)}` environment variable" end end # This error is raised if HTTP authentication is provided, but incorrect. class BadAuthenticationError < HTTPError def initialize(remote_uri) remote_uri = filter_uri(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. NET_ERRORS = [:HTTPBadGateway, :HTTPBadRequest, :HTTPFailedDependency, :HTTPForbidden, :HTTPInsufficientStorage, :HTTPMethodNotAllowed, :HTTPMovedPermanently, :HTTPNoContent, :HTTPNotFound, :HTTPNotImplemented, :HTTPPreconditionFailed, :HTTPRequestEntityTooLarge, :HTTPRequestURITooLong, :HTTPUnauthorized, :HTTPUnprocessableEntity, :HTTPUnsupportedMediaType, :HTTPVersionNotSupported].freeze FAIL_ERRORS = begin fail_errors = [AuthenticationRequiredError, BadAuthenticationError, FallbackError] fail_errors << Gem::Requirement::BadRequirementError fail_errors.concat(NET_ERRORS.map {|e| Net.const_get(e) }) end.freeze 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 -= [nil, "ruby", ""] spec_file_name = "#{spec.join "-"}.gemspec" uri = Bundler::URI.parse("#{remote_uri}#{Gem::MARSHAL_SPEC_DIR}#{spec_file_name}.rz") if uri.scheme == "file" path = Bundler.rubygems.correct_for_windows_path(uri.path) Bundler.load_marshal Bundler.rubygems.inflate(Gem.read_binary(path)) elsif cached_spec_path = gemspec_cached_path(spec_file_name) Bundler.load_gemspec(cached_spec_path) else Bundler.load_marshal Bundler.rubygems.inflate(downloader.fetch(uri).body) 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 with retries def specs_with_retry(gem_names, source) Bundler::Retry.new("fetcher", FAIL_ERRORS).attempts do specs(gem_names, source) end end # return the specs in the bundler format as an index def specs(gem_names, source) index = Bundler::Index.new if Bundler::Fetcher.disable_endpoint @use_api = false specs = fetchers.last.specs(gem_names) else specs = [] @fetchers = fetchers.drop_while do |f| !f.available? || (f.api_fetcher? && !gem_names) || !specs = f.specs(gem_names) end @use_api = false if fetchers.none?(&:api_fetcher?) end specs.each do |name, version, platform, dependencies, metadata| spec = if dependencies EndpointSpecification.new(name, version, platform, self, dependencies, metadata) else 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 end def use_api return @use_api if defined?(@use_api) fetchers.shift until fetchers.first.available? @use_api = if remote_uri.scheme == "file" || Bundler::Fetcher.disable_endpoint false else fetchers.first.api_fetcher? end end def user_agent @user_agent ||= begin ruby = Bundler::RubyVersion.system agent = String.new("bundler/#{Bundler::VERSION}") agent << " rubygems/#{Gem::VERSION}" agent << " ruby/#{ruby.versions_string(ruby.versions)}" agent << " (#{ruby.host})" agent << " command/#{ARGV.first}" if ruby.engine != "ruby" # engine_version raises on unknown engines engine_version = begin ruby.engine_versions rescue RuntimeError "???" end agent << " #{ruby.engine}/#{ruby.versions_string(engine_version)}" end agent << " options/#{Bundler.settings.all.join(",")}" agent << " ci/#{cis.join(",")}" if cis.any? # 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) } end def http_proxy return unless uri = connection.proxy_uri uri.to_s end def inspect "#<#{self.class}:0x#{object_id} uri=#{uri}>" end private FETCHERS = [CompactIndex, Dependency, Index].freeze def cis env_cis = { "TRAVIS" => "travis", "CIRCLECI" => "circle", "SEMAPHORE" => "semaphore", "JENKINS_URL" => "jenkins", "BUILDBOX" => "buildbox", "GO_SERVER_URL" => "go", "SNAP_CI" => "snap", "GITLAB_CI" => "gitlab", "CI_NAME" => ENV["CI_NAME"], "CI" => "ci", } env_cis.find_all {|env, _| ENV[env] }.map {|_, ci| ci } end 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 = PersistentHTTP.new :name => "bundler", :proxy => :ENV if gem_proxy = Gem.configuration[:http_proxy] con.proxy = Bundler::URI.parse(gem_proxy) if gem_proxy != :no_proxy end if remote_uri.scheme == "https" con.verify_mode = (Bundler.settings[:ssl_verify_mode] || OpenSSL::SSL::VERIFY_PEER) con.cert_store = bundler_cert_store end ssl_client_cert = Bundler.settings[:ssl_client_cert] || (Gem.configuration.ssl_client_cert if Gem.configuration.respond_to?(:ssl_client_cert)) if ssl_client_cert pem = File.read(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.open_timeout = Fetcher.api_timeout con.override_headers["User-Agent"] = user_agent con.override_headers["X-Gemfile-Source"] = @remote.original_uri.to_s if @remote.original_uri 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.find {|path| File.file? path } end HTTP_ERRORS = [ Timeout::Error, EOFError, SocketError, Errno::ENETDOWN, Errno::ENETUNREACH, Errno::EINVAL, Errno::ECONNRESET, Errno::ETIMEDOUT, Errno::EAGAIN, Net::HTTPBadResponse, Net::HTTPHeaderSyntaxError, Net::ProtocolError, PersistentHTTP::Error, Zlib::BufError, Errno::EHOSTUNREACH ].freeze def bundler_cert_store store = OpenSSL::X509::Store.new ssl_ca_cert = Bundler.settings[:ssl_ca_cert] || (Gem.configuration.ssl_ca_cert if Gem.configuration.respond_to?(:ssl_ca_cert)) if ssl_ca_cert if File.directory? ssl_ca_cert store.add_path ssl_ca_cert else store.add_file ssl_ca_cert end else store.set_default_paths Gem::Request.get_cert_files.each {|c| store.add_file c } end store end def remote_uri @remote.uri end def downloader @downloader ||= Downloader.new(connection, self.class.redirect_limit) end end end