豆瓣OAuth认证

douban_oauth.rb

# Douban OAuth认证包括以下四步内容
# 1. 获取Request Token
# 2. 用户确认授权
# 3. 换取Access Token
# 4. 访问受限资源


require "rubygems"     
gem 'oauth','0.4.3'
require 'oauth'

API_KEY = "0d205692ee17468b276103b8ca45d3a1"
API_KEY_SECRET = "eca5d4f377ac66c4"
SITE = "http://www.douban.com"

# 1. 获取Request Token
options = {
  :site=> SITE,
  :request_token_path=>"/service/auth/request_token",
  :access_token_path=>"/service/auth/access_token",
  :authorize_path=>"/service/auth/authorize",
  :signature_method=>"HMAC-SHA1",
  :scheme=>:header,
  :realm=>"http://www.5yi.com"  
}

@consumer = OAuth::Consumer.new(API_KEY, API_KEY_SECRET, options)
@request_token=@consumer.get_request_token

# 2. 用户确认授权
url = @request_token.authorize_url
puts "请将下面url粘贴到浏览器中，并同意授权，同意后按任意键继续:\n#{url}"

sleep(15)

# 3. 换取Access Token
@access_token=@request_token.get_access_token

# i should re-generate access_token proxy here, 
# since ruby oauth library assume the domain of the auth site should be same with the resource site
# @access_token = OAuth::AccessToken.new(@consumer,@access_token.token,@access_token.secret)

# 4. 访问受限资源
response = @access_token.get "http://api.douban.com/people/%40me"
puts response.body