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stripe.rb
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stripe.rb
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# Stripe Ruby bindings
# API spec at https://stripe.com/docs/api
require 'cgi'
require 'set'
require 'rubygems'
require 'openssl'
gem 'rest-client', '~> 1.4'
require 'rest_client'
require 'multi_json'
# Version
require 'stripe/version'
# API operations
require 'stripe/api_operations/create'
require 'stripe/api_operations/update'
require 'stripe/api_operations/delete'
require 'stripe/api_operations/list'
# Resources
require 'stripe/util'
require 'stripe/json'
require 'stripe/stripe_object'
require 'stripe/api_resource'
require 'stripe/singleton_api_resource'
require 'stripe/list_object'
require 'stripe/account'
require 'stripe/customer'
require 'stripe/invoice'
require 'stripe/invoice_item'
require 'stripe/charge'
require 'stripe/plan'
require 'stripe/coupon'
require 'stripe/token'
require 'stripe/event'
require 'stripe/transfer'
# Errors
require 'stripe/errors/stripe_error'
require 'stripe/errors/api_error'
require 'stripe/errors/api_connection_error'
require 'stripe/errors/card_error'
require 'stripe/errors/invalid_request_error'
require 'stripe/errors/authentication_error'
module Stripe
@@ssl_bundle_path = File.join(File.dirname(__FILE__), 'data/ca-certificates.crt')
@@api_key = nil
@@api_base = 'https://api.stripe.com'
@@verify_ssl_certs = true
@@api_version = nil
def self.api_url(url='')
@@api_base + url
end
def self.api_key=(api_key)
@@api_key = api_key
end
def self.api_key
@@api_key
end
def self.api_base=(api_base)
@@api_base = api_base
end
def self.api_base
@@api_base
end
def self.verify_ssl_certs=(verify)
@@verify_ssl_certs = verify
end
def self.verify_ssl_certs
@@verify_ssl_certs
end
def self.api_version=(version)
@@api_version = version
end
def self.api_version
@@api_version
end
def self.request(method, url, api_key, params={}, headers={})
api_key ||= @@api_key
raise AuthenticationError.new('No API key provided. (HINT: set your API key using "Stripe.api_key = <API-KEY>". You can generate API keys from the Stripe web interface. See https://stripe.com/api for details, or email support@stripe.com if you have any questions.)') unless api_key
if !verify_ssl_certs
unless @no_verify
$stderr.puts "WARNING: Running without SSL cert verification. Execute 'Stripe.verify_ssl_certs = true' to enable verification."
@no_verify = true
end
ssl_opts = { :verify_ssl => false }
elsif !Util.file_readable(@@ssl_bundle_path)
unless @no_bundle
$stderr.puts "WARNING: Running without SSL cert verification because #{@@ssl_bundle_path} isn't readable"
@no_bundle = true
end
ssl_opts = { :verify_ssl => false }
else
ssl_opts = {
:verify_ssl => OpenSSL::SSL::VERIFY_PEER,
:ssl_ca_file => @@ssl_bundle_path
}
end
uname = (@@uname ||= RUBY_PLATFORM =~ /linux|darwin/i ? `uname -a 2>/dev/null`.strip : nil)
lang_version = "#{RUBY_VERSION} p#{RUBY_PATCHLEVEL} (#{RUBY_RELEASE_DATE})"
ua = {
:bindings_version => Stripe::VERSION,
:lang => 'ruby',
:lang_version => lang_version,
:platform => RUBY_PLATFORM,
:publisher => 'stripe',
:uname => uname
}
params = Util.objects_to_ids(params)
url = self.api_url(url)
case method.to_s.downcase.to_sym
when :get, :head, :delete
# Make params into GET parameters
if params && params.count > 0
query_string = Util.flatten_params(params).collect{|key, value| "#{key}=#{Util.url_encode(value)}"}.join('&')
url += "?#{query_string}"
end
payload = nil
else
payload = Util.flatten_params(params).collect{|(key, value)| "#{key}=#{Util.url_encode(value)}"}.join('&')
end
begin
headers = { :x_stripe_client_user_agent => Stripe::JSON.dump(ua) }.merge(headers)
rescue => e
headers = {
:x_stripe_client_raw_user_agent => ua.inspect,
:error => "#{e} (#{e.class})"
}.merge(headers)
end
headers = {
:user_agent => "Stripe/v1 RubyBindings/#{Stripe::VERSION}",
:authorization => "Bearer #{api_key}",
:content_type => 'application/x-www-form-urlencoded'
}.merge(headers)
if self.api_version
headers[:stripe_version] = self.api_version
end
opts = {
:method => method,
:url => url,
:headers => headers,
:open_timeout => 30,
:payload => payload,
:timeout => 80
}.merge(ssl_opts)
begin
response = execute_request(opts)
rescue SocketError => e
self.handle_restclient_error(e)
rescue NoMethodError => e
# Work around RestClient bug
if e.message =~ /\WRequestFailed\W/
e = APIConnectionError.new('Unexpected HTTP response code')
self.handle_restclient_error(e)
else
raise
end
rescue RestClient::ExceptionWithResponse => e
if rcode = e.http_code and rbody = e.http_body
self.handle_api_error(rcode, rbody)
else
self.handle_restclient_error(e)
end
rescue RestClient::Exception, Errno::ECONNREFUSED => e
self.handle_restclient_error(e)
end
rbody = response.body
rcode = response.code
begin
# Would use :symbolize_names => true, but apparently there is
# some library out there that makes symbolize_names not work.
resp = Stripe::JSON.load(rbody)
rescue MultiJson::DecodeError
raise APIError.new("Invalid response object from API: #{rbody.inspect} (HTTP response code was #{rcode})", rcode, rbody)
end
resp = Util.symbolize_names(resp)
[resp, api_key]
end
private
def self.execute_request(opts)
RestClient::Request.execute(opts)
end
def self.handle_api_error(rcode, rbody)
begin
error_obj = Stripe::JSON.load(rbody)
error_obj = Util.symbolize_names(error_obj)
error = error_obj[:error] or raise StripeError.new # escape from parsing
rescue MultiJson::DecodeError, StripeError
raise APIError.new("Invalid response object from API: #{rbody.inspect} (HTTP response code was #{rcode})", rcode, rbody)
end
case rcode
when 400, 404 then
raise invalid_request_error(error, rcode, rbody, error_obj)
when 401
raise authentication_error(error, rcode, rbody, error_obj)
when 402
raise card_error(error, rcode, rbody, error_obj)
else
raise api_error(error, rcode, rbody, error_obj)
end
end
def self.invalid_request_error(error, rcode, rbody, error_obj)
InvalidRequestError.new(error[:message], error[:param], rcode, rbody, error_obj)
end
def self.authentication_error(error, rcode, rbody, error_obj)
AuthenticationError.new(error[:message], rcode, rbody, error_obj)
end
def self.card_error(error, rcode, rbody, error_obj)
CardError.new(error[:message], error[:param], error[:code], rcode, rbody, error_obj)
end
def self.api_error(error, rcode, rbody, error_obj)
APIError.new(error[:message], rcode, rbody, error_obj)
end
def self.handle_restclient_error(e)
case e
when RestClient::ServerBrokeConnection, RestClient::RequestTimeout
message = "Could not connect to Stripe (#{@@api_base}). Please check your internet connection and try again. If this problem persists, you should check Stripe's service status at https://twitter.com/stripestatus, or let us know at support@stripe.com."
when RestClient::SSLCertificateNotVerified
message = "Could not verify Stripe's SSL certificate. Please make sure that your network is not intercepting certificates. (Try going to https://api.stripe.com/v1 in your browser.) If this problem persists, let us know at support@stripe.com."
when SocketError
message = "Unexpected error communicating when trying to connect to Stripe. HINT: You may be seeing this message because your DNS is not working. To check, try running 'host stripe.com' from the command line."
else
message = "Unexpected error communicating with Stripe. If this problem persists, let us know at support@stripe.com."
end
message += "\n\n(Network error: #{e.message})"
raise APIConnectionError.new(message)
end
end