first commit

.gitignore

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+/.bundle/
+/.yardoc
+/Gemfile.lock
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/
+*.bundle
+*.so
+*.o
+*.a
+mkmf.log

Gemfile

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

LICENSE.txt

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+Copyright (c) 2015 GonJay
+
+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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+# YoukuVideo
+
+解析出 YouKu 视频的 M3U8 播放地址
+
+## 安装
+
+把这行代码加到你的 Gemfile 中
+
+```ruby
+gem 'youkuVideo'
+```
+
+然后运行:
+
+    $ bundle
+
+或者你可以直接安装:
+
+    $ gem install youkuVideo
+
+## 使用方法
+
+```
+2.2.0 :007 > YoukuVideo::M3U8.getVideoURL("XNjgzMTU0MzU2", "hd3")
+=> "http://pl.youku.com/playlist/m3u8?ctype=12&ep=dCaXGECKUs4G4iDagT8bZCu0cX4GXJZ0rEjP/LYHAMZuLerQmzbQwQ==%0A&ev=1&keyframe=1&oip=1899608454&sid=64329740673591237f599&token=2816&type=hd3&vid=XNjgzMTU0MzU2"
+```
+
+## Contributing
+
+1. Fork it ( https://github.com/gonjay/youkuVideo/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

Rakefile

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+require "bundler/gem_tasks"
+
+task :console do
+  exec "irb -r youkuVideo -I ./lib"
+end

lib/youkuVideo.rb

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+require "youkuVideo/version"
+require "base64"
+require "uri"
+require "rest-client"
+
+module YoukuVideo
+  class M3U8
+    def self.youkuEncoder(a, c, isToBase64)
+      result = ""
+      bytesR = []
+      f,h,q = 0,0,0
+      b = []
+      256.times{|i| b[i]=i}
+      while h < 256 do
+        f = (f + b[h] + a[h % a.length].ord) % 256
+        tmp = b[h]
+        b[h] = b[f]
+        b[f] = tmp
+        h += 1
+      end
+      f,h,q = 0,0,0
+      while q < c.length
+        h = (h + 1) % 256
+        f = (f + b[h]) % 256
+        tmp = b[h]
+        b[h] = b[f]
+        b[f] = tmp
+        bytes = [c[q].ord ^ b[(b[h] + b[f]) % 256]].pack "l"
+        bytesR.push(bytes[0])
+        result += bytes[0]
+        q += 1
+      end
+      if isToBase64
+        result = Base64.encode64(bytesR.join(""))
+      end
+      return result
+    end
+
+    def self.getEp(vid, ep)
+      template1 = "becaf9be"
+      template2 = "bf7e5f01"
+      bytes = Base64.decode64(ep).split(//)
+      tmp = youkuEncoder(template1, bytes, false)
+      sid = tmp.split("_")[0]
+      token = tmp.split("_")[1]
+      whole = "#{sid}_#{vid}_#{token}"
+      newbytes = whole.split("").map { |e| e.ord }
+      epNew = youkuEncoder(template2, newbytes, true)
+      return URI.encode(epNew), sid, token
+    end
+
+    def self.getVideoURL(url, type)
+      vid = url.split("id_").last.split(".").first
+      content = RestClient.get("http://v.youku.com/player/getPlayList/VideoIDS/#{vid}/Pf/4/ctype/12/ev/1")
+      json = JSON.parse(content)
+      ip = json["data"][0]["ip"]
+      ep = json["data"][0]["ep"]
+      ep,sid,token = getEp(vid, ep)
+      "http://pl.youku.com/playlist/m3u8?ctype=12&ep=#{ep}&ev=1&keyframe=1&oip=#{ip}&sid=#{sid}&token=#{token}&type=#{type}&vid=#{vid}"
+    end
+  end
+end

lib/youkuVideo/version.rb

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+module YoukuVideo
+  VERSION = "0.0.1"
+end

youkuVideo.gemspec

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+# coding: utf-8
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'youkuVideo/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = "youkuVideo"
+  spec.version       = YoukuVideo::VERSION
+  spec.authors       = ["GonJay"]
+  spec.email         = ["[email protected]"]
+  spec.summary       = %q{解析出 YouKu 视频的 M3U8 播放地址}
+  spec.description   = %q{Write a longer description. Optional.}
+  spec.homepage      = ""
+  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", "~> 1.7"
+  spec.add_development_dependency "rake", "~> 10.0"
+end