AlkantarClanX12
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# frozen_string_literal: true
require_relative "remote_fetcher"
require_relative "text"
require_relative "gemcutter_utilities/webauthn_listener"
require_relative "gemcutter_utilities/webauthn_poller"
##
# Utility methods for using the RubyGems API.
module Gem::GemcutterUtilities
ERROR_CODE = 1
API_SCOPES = [:index_rubygems, :push_rubygem, :yank_rubygem, :add_owner, :remove_owner, :access_webhooks].freeze
EXCLUSIVELY_API_SCOPES = [:show_dashboard].freeze
include Gem::Text
attr_writer :host
attr_writer :scope
##
# Add the --key option
def add_key_option
add_option("-k", "--key KEYNAME", Symbol,
"Use the given API key",
"from #{Gem.configuration.credentials_path}") do |value,options|
options[:key] = value
end
end
##
# Add the --otp option
def add_otp_option
add_option("--otp CODE",
"Digit code for multifactor authentication",
"You can also use the environment variable GEM_HOST_OTP_CODE") do |value, options|
options[:otp] = value
end
end
##
# The API key from the command options or from the user's configuration.
def api_key
if ENV["GEM_HOST_API_KEY"]
ENV["GEM_HOST_API_KEY"]
elsif options[:key]
verify_api_key options[:key]
elsif Gem.configuration.api_keys.key?(host)
Gem.configuration.api_keys[host]
else
Gem.configuration.rubygems_api_key
end
end
##
# The OTP code from the command options or from the user's configuration.
def otp
options[:otp] || ENV["GEM_HOST_OTP_CODE"]
end
##
# The host to connect to either from the RUBYGEMS_HOST environment variable
# or from the user's configuration
def host
configured_host = Gem.host unless
Gem.configuration.disable_default_gem_server
@host ||=
begin
env_rubygems_host = ENV["RUBYGEMS_HOST"]
env_rubygems_host = nil if env_rubygems_host&.empty?
env_rubygems_host || configured_host
end
end
##
# Creates an RubyGems API to +host+ and +path+ with the given HTTP +method+.
#
# If +allowed_push_host+ metadata is present, then it will only allow that host.
def rubygems_api_request(method, path, host = nil, allowed_push_host = nil, scope: nil, credentials: {}, &block)
require_relative "vendored_net_http"
self.host = host if host
unless self.host
alert_error "You must specify a gem server"
terminate_interaction(ERROR_CODE)
end
if allowed_push_host
allowed_host_uri = Gem::URI.parse(allowed_push_host)
host_uri = Gem::URI.parse(self.host)
unless (host_uri.scheme == allowed_host_uri.scheme) && (host_uri.host == allowed_host_uri.host)
alert_error "#{self.host.inspect} is not allowed by the gemspec, which only allows #{allowed_push_host.inspect}"
terminate_interaction(ERROR_CODE)
end
end
uri = Gem::URI.parse "#{self.host}/#{path}"
response = request_with_otp(method, uri, &block)
if mfa_unauthorized?(response)
fetch_otp(credentials)
response = request_with_otp(method, uri, &block)
end
if api_key_forbidden?(response)
update_scope(scope)
request_with_otp(method, uri, &block)
else
response
end
end
def mfa_unauthorized?(response)
response.is_a?(Gem::Net::HTTPUnauthorized) && response.body.start_with?("You have enabled multifactor authentication")
end
def update_scope(scope)
sign_in_host = host
pretty_host = pretty_host(sign_in_host)
update_scope_params = { scope => true }
say "The existing key doesn't have access of #{scope} on #{pretty_host}. Please sign in to update access."
identifier = ask "Username/email: "
password = ask_for_password " Password: "
response = rubygems_api_request(:put, "api/v1/api_key",
sign_in_host, scope: scope) do |request|
request.basic_auth identifier, password
request["OTP"] = otp if otp
request.body = Gem::URI.encode_www_form({ api_key: api_key }.merge(update_scope_params))
end
with_response response do |_resp|
say "Added #{scope} scope to the existing API key"
end
end
##
# Signs in with the RubyGems API at +sign_in_host+ and sets the rubygems API
# key.
def sign_in(sign_in_host = nil, scope: nil)
sign_in_host ||= host
return if api_key
pretty_host = pretty_host(sign_in_host)
say "Enter your #{pretty_host} credentials."
say "Don't have an account yet? " \
"Create one at #{sign_in_host}/sign_up"
identifier = ask "Username/email: "
password = ask_for_password " Password: "
say "\n"
key_name = get_key_name(scope)
scope_params = get_scope_params(scope)
profile = get_user_profile(identifier, password)
mfa_params = get_mfa_params(profile)
all_params = scope_params.merge(mfa_params)
warning = profile["warning"]
credentials = { identifier: identifier, password: password }
say "#{warning}\n" if warning
response = rubygems_api_request(:post, "api/v1/api_key",
sign_in_host, credentials: credentials, scope: scope) do |request|
request.basic_auth identifier, password
request["OTP"] = otp if otp
request.body = Gem::URI.encode_www_form({ name: key_name }.merge(all_params))
end
with_response response do |resp|
say "Signed in with API key: #{key_name}."
set_api_key host, resp.body
end
end
##
# Retrieves the pre-configured API key +key+ or terminates interaction with
# an error.
def verify_api_key(key)
if Gem.configuration.api_keys.key? key
Gem.configuration.api_keys[key]
else
alert_error "No such API key. Please add it to your configuration (done automatically on initial `gem push`)."
terminate_interaction(ERROR_CODE)
end
end
##
# If +response+ is an HTTP Success (2XX) response, yields the response if a
# block was given or shows the response body to the user.
#
# If the response was not successful, shows an error to the user including
# the +error_prefix+ and the response body. If the response was a permanent redirect,
# shows an error to the user including the redirect location.
def with_response(response, error_prefix = nil)
case response
when Gem::Net::HTTPSuccess then
if block_given?
yield response
else
say clean_text(response.body)
end
when Gem::Net::HTTPPermanentRedirect, Gem::Net::HTTPRedirection then
message = "The request has redirected permanently to #{response["location"]}. Please check your defined push host URL."
message = "#{error_prefix}: #{message}" if error_prefix
say clean_text(message)
terminate_interaction(ERROR_CODE)
else
message = response.body
message = "#{error_prefix}: #{message}" if error_prefix
say clean_text(message)
terminate_interaction(ERROR_CODE)
end
end
##
# Returns true when the user has enabled multifactor authentication from
# +response+ text and no otp provided by options.
def set_api_key(host, key)
if default_host?
Gem.configuration.rubygems_api_key = key
else
Gem.configuration.set_api_key host, key
end
end
private
def request_with_otp(method, uri, &block)
request_method = Gem::Net::HTTP.const_get method.to_s.capitalize
Gem::RemoteFetcher.fetcher.request(uri, request_method) do |req|
req["OTP"] = otp if otp
block.call(req)
end
end
def fetch_otp(credentials)
options[:otp] = if webauthn_url = webauthn_verification_url(credentials)
server = TCPServer.new 0
port = server.addr[1].to_s
url_with_port = "#{webauthn_url}?port=#{port}"
say "You have enabled multi-factor authentication. Please visit #{url_with_port} to authenticate via security device. If you can't verify using WebAuthn but have OTP enabled, you can re-run the gem signin command with the `--otp [your_code]` option."
threads = [WebauthnListener.listener_thread(host, server), WebauthnPoller.poll_thread(options, host, webauthn_url, credentials)]
otp_thread = wait_for_otp_thread(*threads)
threads.each(&:join)
if error = otp_thread[:error]
alert_error error.message
terminate_interaction(1)
end
say "You are verified with a security device. You may close the browser window."
otp_thread[:otp]
else
say "You have enabled multi-factor authentication. Please enter OTP code."
ask "Code: "
end
end
def wait_for_otp_thread(*threads)
loop do
threads.each do |otp_thread|
return otp_thread unless otp_thread.alive?
end
sleep 0.1
end
ensure
threads.each(&:exit)
end
def webauthn_verification_url(credentials)
response = rubygems_api_request(:post, "api/v1/webauthn_verification") do |request|
if credentials.empty?
request.add_field "Authorization", api_key
else
request.basic_auth credentials[:identifier], credentials[:password]
end
end
response.is_a?(Gem::Net::HTTPSuccess) ? response.body : nil
end
def pretty_host(host)
if default_host?
"RubyGems.org"
else
host
end
end
def get_scope_params(scope)
scope_params = { index_rubygems: true }
if scope
scope_params = { scope => true }
else
say "The default access scope is:"
scope_params.each do |k, _v|
say " #{k}: y"
end
say "\n"
customise = ask_yes_no("Do you want to customise scopes?", false)
if customise
EXCLUSIVELY_API_SCOPES.each do |excl_scope|
selected = ask_yes_no("#{excl_scope} (exclusive scope, answering yes will not prompt for other scopes)", false)
next unless selected
return { excl_scope => true }
end
scope_params = {}
API_SCOPES.each do |s|
selected = ask_yes_no(s.to_s, false)
scope_params[s] = true if selected
end
end
say "\n"
end
scope_params
end
def default_host?
host == Gem::DEFAULT_HOST
end
def get_user_profile(identifier, password)
return {} unless default_host?
response = rubygems_api_request(:get, "api/v1/profile/me.yaml") do |request|
request.basic_auth identifier, password
end
with_response response do |resp|
Gem::ConfigFile.load_with_rubygems_config_hash(clean_text(resp.body))
end
end
def get_mfa_params(profile)
mfa_level = profile["mfa"]
params = {}
if ["ui_only", "ui_and_gem_signin"].include?(mfa_level)
selected = ask_yes_no("Would you like to enable MFA for this key? (strongly recommended)")
params["mfa"] = true if selected
end
params
end
def get_key_name(scope)
hostname = Socket.gethostname || "unknown-host"
user = ENV["USER"] || ENV["USERNAME"] || "unknown-user"
ts = Time.now.strftime("%Y%m%d%H%M%S")
default_key_name = "#{hostname}-#{user}-#{ts}"
key_name = ask "API Key name [#{default_key_name}]: " unless scope
if key_name.nil? || key_name.empty?
default_key_name
else
key_name
end
end
def api_key_forbidden?(response)
response.is_a?(Gem::Net::HTTPForbidden) && response.body.start_with?("The API key doesn't have access")
end
end