Init aliyun.gem

.gitignore

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+*.gem
+*.rbc
+.bundle
+.config
+.yardoc
+Gemfile.lock
+InstalledFiles
+_yardoc
+coverage
+doc/
+lib/bundler/man
+pkg
+rdoc
+spec/reports
+test/tmp
+test/version_tmp
+tmp
+*.bundle
+*.so
+*.o
+*.a
+mkmf.log

Gemfile

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+source 'https://rubygems.org'
+
+# Specify gem's dependencies in aliyun.gemspec
+gemspec

LICENSE.txt

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+Copyright (c) 2014 Liu Lantao
+
+MIT License
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# Aliyun
+
+Ruby wrapper of Aliyun API for system adminstrator.
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+    gem 'aliyun'
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install aliyun
+
+## Usage
+
+Example:
+
+    require 'rubygems'
+    require 'aliyun'
+
+    options = {
+      :access_key_id => "_YOUR_API_KEY_",
+      :access_key_secret => "_YOUR_API_SECRET_",
+      :endpoint_url => "https://ecs.aliyuncs.com/"
+    }
+
+    service = Aliyun::ECS::Service.new options
+    parameters = {}
+
+    puts service.DescribeRegions parameters
+
+You can create/fetch `access key`/`secret` at [https://i.aliyun.com/access_key](https://i.aliyun.com/access_key)
+
+## Contributing
+
+1. Fork it ( https://github.com/Lax/aliyun/fork )
+2. Create your feature branch (`git checkout -b my-new-feature`)
+3. Commit your changes (`git commit -am 'Add some feature'`)
+4. Push to the branch (`git push origin my-new-feature`)
+5. Create a new Pull Request
+
+## Author
+
+* [Liu Lantao](https://github.com/Lax)

Rakefile

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+require "bundler/gem_tasks"
+

aliyun.gemspec

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+# coding: utf-8
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'aliyun/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = "aliyun"
+  spec.version       = Aliyun::VERSION
+  spec.authors       = ["Liu Lantao"]
+  spec.email         = ["liulantao@gmail.com"]
+  spec.summary       = %q{Ruby wrapper of Aliyun API for system administrator}
+  spec.description   = %q{Ruby wrapper of Aliyun API for system administrator.
+    Current for aliyun API version 2014-05-26
+  }
+  spec.homepage      = "https://github.com/Lax/aliyun"
+  spec.license       = "MIT"
+
+  spec.files         = `git ls-files -z`.split("\x0")
+  spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
+  spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
+  spec.require_paths = ["lib"]
+
+  spec.add_development_dependency "bundler", "~> 1.6"
+  spec.add_development_dependency "rake"
+  spec.add_dependency "ruby-hmac"
+end

examples/describe_regions.rb

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+require 'rubygems'
+require 'aliyun'
+
+$DEBUG=false
+
+options = {:access_key_id => "xxxxxx",
+           :access_key_secret => "yyyyy",
+           :endpoint_url => "https://ecs.aliyuncs.com/"}
+
+service = Aliyun::ECS::Service.new options
+
+parameters = {}
+
+puts service.DescribeRegions parameters

lib/aliyun.rb

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+require "aliyun/version"
+require "aliyun/base"
+require "aliyun/ecs"

lib/aliyun/base.rb

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+module Aliyun
+  ALIYUN_API_ENDPOINT='https://ecs.aliyuncs.com/'
+  SEPARATOR = "&"
+  HTTP_METHOD = "GET"
+
+  $ENDPOINT_URL = nil
+  $ACCESS_KEY_ID = nil
+  $ACCESS_KEY_SECRET = nil
+
+  DEFAULT_PARAMETERS = {
+    :Format=>"JSON",
+    :Version=>"2014-05-26",
+    :SignatureMethod=>"HMAC-SHA1",
+    :SignatureVersion=>"1.0"
+  }
+
+  class AliyunAPIException < RuntimeError
+  end
+end

lib/aliyun/ecs.rb

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+require 'net/http'
+require 'time'
+require 'securerandom'
+require 'uri'
+require 'base64'
+require 'hmac-sha1'
+require 'json'
+
+module Aliyun
+  module ECS
+    class Service
+      attr_accessor :access_key_id, :access_key_secret
+      attr_accessor :options
+      attr_accessor :endpoint_url
+
+      def initialize(options={})
+        self.access_key_id = options[:access_key_id] || $ACCESS_KEY_ID || ""
+        self.access_key_secret = options[:access_key_secret] || $ACCESS_KEY_SECRET || ""
+        self.endpoint_url = options[:endpoint_url] || $ENDPOINT_URL || ALIYUN_API_ENDPOINT
+        self.options = {:AccessKeyId => self.access_key_id}
+      end
+
+      def method_missing(method, *args)
+        if $DEBUG
+          puts "Not Found Method: #{method}"
+        end
+
+        if args[0].nil?
+          raise AliyunAPIException.new "Method missing: #{method}!"
+        end
+
+        call_aliyun_with_parameter(method, args[0])
+      end
+
+      #Dispatch the request with parameter
+      private
+      def call_aliyun_with_parameter(method, params)
+        params = gen_request_parameters method, params
+        uri = URI(endpoint_url)
+
+        uri.query = URI.encode_www_form(params)
+
+        http = Net::HTTP.new(uri.host, uri.port)
+        http.use_ssl = (uri.scheme == "https")
+
+        http.verify_mode = OpenSSL::SSL::VERIFY_NONE
+        if $DEBUG
+          puts "Request URI: #{uri.request_uri}"
+        end
+
+        request = Net::HTTP::Get.new(uri.request_uri)
+        response = http.request(request)
+
+        case response
+        when Net::HTTPSuccess
+          return JSON.parse(response.body)
+        else
+          raise AliyunAPIException.new "Response code: #{response.code}, message: #{response.body}"
+        end
+      end
+
+      #generate the parameters
+      def gen_request_parameters method, params
+        #add common parameters
+        params.merge! DEFAULT_PARAMETERS
+
+        params.merge! self.options
+
+        params[:Action] = method.to_s
+        params[:TimeStamp] = Time.now.utc.iso8601
+        params[:SignatureNonce] = SecureRandom.uuid
+        params[:Signature] = compute_signature params
+
+        params
+      end
+
+      #compute the signature of the parameters String
+      def compute_signature params
+        if $DEBUG
+          puts "keys before sorted: #{params.keys}"
+        end
+
+        sorted_keys = params.keys.sort
+
+        if $DEBUG
+          puts "keys after sorted: #{sorted_keys}"
+        end
+
+        canonicalized_query_string = ""
+
+        canonicalized_query_string = sorted_keys.map {|key|
+          "%s=%s" % [safe_encode(key.to_s), safe_encode(params[key])]
+        }.join(SEPARATOR)
+
+        length = canonicalized_query_string.length
+
+        string_to_sign = HTTP_METHOD + SEPARATOR + safe_encode('/') + SEPARATOR + safe_encode(canonicalized_query_string)
+
+        if $DEBUG
+          puts "string_to_sign is #{string_to_sign}"
+        end
+
+        signature = calculate_signature access_key_secret+"&", string_to_sign
+      end
+
+      #calculate the signature
+      def calculate_signature key, string_to_sign
+        hmac = HMAC::SHA1.new(key)
+        hmac.update(string_to_sign)
+        signature = Base64.encode64(hmac.digest).gsub("\n", '')
+        if $DEBUG
+          puts "Signature #{signature}"
+        end
+        signature
+      end
+
+      #encode the value to aliyun's requirement
+      def safe_encode value
+        value = URI.encode_www_form_component(value).gsub(/\+/,'%20').gsub(/\*/,'%2A').gsub(/%7E/,'~')
+      end
+    end
+  end
+end

lib/aliyun/version.rb

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+module Aliyun
+  VERSION = "0.1.0"
+end