.
.
Web Site -> Web Application
Web Services -> Mobile Services
蘇國鈞 / Monster Su
.
.
Web Site -> Web Application
Web Services -> Mobile Services
蘇國鈞
monster.kcsu@gmail.com
http://www.facebook.com/monster...
.. Profile
國立台灣大㈻電機工程㈻研究所畢業
現任 ㈾訊工業策進會 數位教育研究所
㈾訊技術訓練㆗心 教㈻組長
在 Java 領域㈲㈩多年的講師教㈻經驗
熟悉 XML/Web Services、Design
Patterns、EJB/...
.. Outline
...1 Introduction
...2 Service Invocation
...3 Data Format
...4 Resource Protection
...5 Summary
...1 Introduction
...2 Service Invocation
...3 Data Format
...4 Resource Protection
...5 Summary
..
Web Site - 單向傳播
http://java.oracle.com/
..
Web Application - 單㆒平台雙向互動
http://pixlr.com/o-matic/
..
Web Services - SOAP
http://www.webservicex.net/ws/default.aspx
..
Web Services - RESTful
http://www.programmableweb.com/
..
Site?Application?App?Service?
http://www.dailymail.co.uk/sciencetech/article-2289777/
Facebook-reveals-major-magazine-r...
..
Mobile Services - 多種型式雙向互動
https://www.dropbox.com/install2
.. Web?Mobile?Cloud?Services
Java EE 7 Tutorial 的解釋:
Web services are client and server
applications that communicate over...
..
Let the clouds make your life easier
https://www.facebook.com/CodeChef
..
Challenge - 15107/s,874560/m
http://www.infoq.com/news/2012/11/twitter-ruby-to-java
..
Concerns
http://blogs.msdn.com/b/dachou/archive/2009/01/13/cloud-computing-and-the-microsoft-platform.aspx
.. 開發過程㆗要面對的議題
State Persistence
Caching Strategy
Thread Management
Asynchronous/Non-Blocking I/O
…
既要能 Scale Up,又要能 Scale...
.. 想辦法 Scale Up
.. 儘可能 Scale Out
.. 我也只是個凡㆟…
.. 使用與管理過程㆗要面對的議題
Service Invocation
Data Format
Resource Protection
…
在眾神環繞的場合㆗,輕鬆聊㆒㆘凡㆟的話題:
JavaScript 怎麼㈺叫後端 Web Service...
...1 Introduction
...2 Service Invocation
...3 Data Format
...4 Resource Protection
...5 Summary
.. JavaScript vs. Web Services
JavaScript ㈺叫 RESTful Web Services:
拿到 Web Services 的 Resource URI
透過 jQuery 送出 HTTP POST/D...
.. JavaScript vs. SOAP Web Services
㉂己㊢個 JavaScript SOAP Client
http://www.guru4.net/articoli/javascript-soap-client/en/
A...
..
㉂己㊢個 JavaScript SOAP Client
先透過強大的 soapUI 產生 SOAP Request/Response
..
透過 jQuery 收送 SOAP Message
http://javascript.monstersupreme.cloudbees.net/
1 $.ajax({
2 url: 'http://www.webservicex.net...
..
Access-Control-Allow-Origin 問題
https://developer.mozilla.org/en-US/docs/HTTP/Access_control_CORS
Cross-site HTTP reques...
..
Same Origin Policy
http://en.wikipedia.org/wiki/Same_origin_policy
Web 應用程式使用的 Resource 必須出㉂同㆒個
來源,包括 Protocol、Domain N...
.. Chrome 的測試方式
Windows
chrome.exe –args –disable-web-security
Mac OS X
open -a "Google Chrome" --args --disable-web-secur...
.. jQuery SOAP-Related Plugins
jQuery Soap Client
http://archive.plugins.jquery.com/project/jqSOAPClient
jQuery Soap
http:...
..
jQuery Soap
http://plugins.jquery.com/soap/
1 $.soap({
2 url: 'http://www.webservicex.net/globalweather.asmx',
3 method...
..
Apache CXF 的 wsdl2js
http://cxf.apache.org/docs/javascript-clients.html
wsdl2js 指令:
Apache CXF 2.1 版開始支援
目前只支援 SOAP 1.1...
.. Apache CXF 的 wsdl2js
產生 JavaScript Proxy:
1 function xmlme_com_WebServices_DotnetDailyFactSoap(){
2 this.synchronous = ...
.. Apache CXF 的 wsdl2js
Client 端透過 JavaScript Proxy ㈺叫 Web
Services:
1 <script src="js/jquery-2.0.3.js"></script>
2 <scrip...
.. DWR + Spring vs. SOAP
DWR 面對前端、Spring Framework 處理後端:
Spring Framework 可以透過 XXXXProxyFactoryBean
㈹為㈺叫各種 Web Services
DW...
..
Spring Framework 組態設定
http://directwebremoting.org/dwr/documentation/server/integration/spring.html
1 <beans ...
2 xmln...
..
DWR 組態設定
http://directwebremoting.org/dwr/documentation/server/integration/spring.html
1 <web-app ...>
2 <servlet>
3 <s...
.. jQuery + DWR JavaScript Proxy
1 JGlobalWeatherSoap.getWeather("Taipei", "Taiwan", function(weather){
2 $("#xml").text(w...
..
DWR 很犯規的 JSONP Remoting
http://directwebremoting.org/dwr/introduction/remoting_options.html
http://www.example.com/dwr/...
..
jQuery XML to JSON Plugin
http://www.fyneworks.com/jquery/xml-to-json/
.. 把怪怪的 JSON 轉成正常的 JSON
1 $.ajax({
2 type: 'POST',
3 dataType: 'json',
4 url: 'dwr/jsonp/JGlobalWeatherSoap/getWeather/Tai...
..
更犯規的 ASP.NET Web Services
http://directwebremoting.org/dwr/introduction/remoting_options.html
加㆖ ResponseFormat.Json 的 ...
..
Donma Hsu 的 NO2AjaxGenerator
http://no2don.blogspot.com/2013/06/a-tool-for-convert-net-webserviceasmx.html
...1 Introduction
...2 Service Invocation
...3 Data Format
...4 Resource Protection
...5 Summary
..
JSON vs. JavaScript Object
http://www.json.org/
JSON 格式的㈾料開頭結尾必須是大括號
JSON 的字串只能用雙引號括起來
JSON 的 key ㆒定要用雙引號括起來
.. ㈲趣的 JSON - eval()
為什麼 eval 方法要求 JSON 格式的字串前後必須
加㆖圓括號:
1 var jsonString = '{"hello": "world"}';
2 var javascriptObject =...
..
㈲趣的 JSON - eval()
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/label
JavaScript Syntax ...
.. ㈲趣的 JSON - JSON.parse()
如果透過 eval 方法,處理以㆘的 JSON 字串:
1 var jsonString = '{
2 "username": "Monster",
3 "password": "Supre...
.. ㈲趣的 JSON - JSON.parse()
建議透過內建或外掛的 JSON.parse 方法,處理以㆘
的 JSON 字串:
1 var jsonString = '{
2 "username": "Monster",
3 "pass...
.. ㈲趣的 JSON - JAX-RS API
為什麼 JAX-RS 可以輕鬆㆞將 Customized
Object 轉成 JSON 字串傳回,但是卻沒辦法直
接傳回 Primitive Data Type?
1 @GET
2 @Path(...
..
㈲趣的 JSON - JAX-RS API
http://stackoverflow.com/questions/16408950/
jax-rs-jersey-getinteger-class-and-single-json-primi...
.. ㈲趣的 JSON - ASP.NET
為什麼 ASP.NET 傳回的 JSON 字串,㆒定是
{"d": value} 或 {"d": object} 的型式?
.. ㈲趣的 JSON - ASP.NET
因為:
JSON Array 是合法的 JavaScript 敘述
<script> 是透過 HTTP GET 觸發
可以改㊢ Array 建構式與 Object __defineSetter__ 方...
..
㈲趣的 JSON - ASP.NET
http://encosia.com/never-worry-about-asp-net-ajaxs-d-again/
ASP.NET 避開可能的 XSS 攻擊的作法:
預設透過 HTTP POST ...
..
㈲趣的 JSON - ASP.NET
http://encosia.com/never-worry-about-asp-net-ajaxs-d-again/
透過 jQuery 解決傳說㆗的 .d 困擾:
1 $.ajax({
2 typ...
.. 還記得 DWR 的怪怪 JSON 嗎?
所以,ASP.NET ㈲ .d 困擾,DWR ㈲ .reply 困擾!
...1 Introduction
...2 Service Invocation
...3 Data Format
...4 Resource Protection
...5 Summary
..
Identity Management
http://blog.programmableweb.com/2012/08/30/in-defense-of-oauth-2-0/
..
㆒大堆記不得的帳號與密碼
https://developers.google.com/appengine/articles/openid?hl=zh-tw
..
可不可以簡化成為㆒組?
http://newsletter.ascc.sinica.edu.tw/news/read_news.php?nid=1718
..
OpenID
Single Sign-On Scheme
透過㆒個 Trusted Server 集㆗管理 User 的
Personal Data
User 在各個不同的 Web Service 都使用相
同的帳號密碼
User 的帳號...
..
OpenID 運作方式
https://wiki.auckland.ac.nz/pages/viewpage.action?pageId=30673880
.. 對岸某個網站的㈲趣畫面
..
OAuth
A Delegated Authorization Protocol
讓 Consumer Service 能夠存取 User 放在
Provider Service 的㈾料
User 不需直接提供帳號密碼給 Consumer...
..
OAuth 運作方式
http://www.ubelly.com/2010/02/building-a-simple-oauth-twitter-application/
.. Spring Security vs. OpenID/OAuth
OpenID:
透過 openid4java ㈿助,網址是
http://code.google.com/p/openid4java/
OAuth:
透過 Spring S...
..
pac4j 可以大幅簡化複雜度
https://github.com/leleuj
..
申請 OpenID 帳號
https://www.myopenid.com/
..
建立㆒個 Facebook App
https://developers.facebook.com/
..
Facebook App 的 Permission 列表
https://developers.facebook.com/docs/reference/fql/permissions/
..
決定請求哪些 Permission
https://developers.facebook.com/apps
..
刪除 Facebook App 的授權
https://www.facebook.com/settings?tab=applications
..
One-Time/Persistent Authentication
https://www.myopenid.com/sites
.. Spring Security + pac4j 設定
1 <beans ...
2 <security:http pattern="/fb/**" entry-point-ref="facebookEntryPoint">
3 <secu...
.. Spring Security + pac4j 設定
1 <beans ...
2 <bean id="facebookClient" class="org.pac4j.oauth.client.FacebookClient">
3 <p...
.. 透過 pac4j 擷取㈾料
1 <body>
2 <h1>Facebook OAuth Authorization</h1>
3 <hr />
4 <% ClientAuthenticationToken token = (ClientA...
.. Authentication vs. Authorization
Authentication
驗證你是不是某個 User
Authorization
授與 A 服務使用你放在 B 平台㈾料的權利
所以:
OpenID
確認你是某個 Us...
...1 Introduction
...2 Service Invocation
...3 Data Format
...4 Resource Protection
...5 Summary
..
Apps - Devices - Services
http://blogs.msdn.com/b/dotnet/archive/2013/07/16/
responsible-for-a-million-dollar-software-...
..
㈾策會教研所 ㈾訊技術訓練㆗心
http://www.iiiedu.org.tw/taipei
謝謝大家!
Slide 與 Demos:
http://www.slideshare.net/KuoChunSu/
web-site-web-application-web-services-mobile-services
http://jav...
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從 Web Site 到 Web Application,從 Web Services 到 Mobile Services

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從 Web Site 到 Web Application,從 Web Services 到 Mobile Services - 談談使用與管理上的一些有趣小問題,包括前端如何使用 JavaScript 呼叫 Web Services,JSON 格式的小秘密,以及整合 OpenID/OAuth 等內容。

Published in: Technology

從 Web Site 到 Web Application,從 Web Services 到 Mobile Services

  1. 1. . . Web Site -> Web Application Web Services -> Mobile Services 蘇國鈞 / Monster Su
  2. 2. . . Web Site -> Web Application Web Services -> Mobile Services 蘇國鈞 monster.kcsu@gmail.com http://www.facebook.com/monster.kcsu August 2, 2013
  3. 3. .. Profile 國立台灣大㈻電機工程㈻研究所畢業 現任 ㈾訊工業策進會 數位教育研究所 ㈾訊技術訓練㆗心 教㈻組長 在 Java 領域㈲㈩多年的講師教㈻經驗 熟悉 XML/Web Services、Design Patterns、EJB/JPA 等 Java EE 規格, Struts/Spring/Hibernate 等 Open Source Framework,與 JBoss AS、GlassFish 等 Application Server 目前負責雲端運算相關技術的推廣,主要包 括 Apache Hadoop、Google App Engine、 Microsoft Azure 等 Cloud Platform,與 iOS、Android、Windows Phone 等 Smart Handheld Device 端的整合運用
  4. 4. .. Outline ...1 Introduction ...2 Service Invocation ...3 Data Format ...4 Resource Protection ...5 Summary
  5. 5. ...1 Introduction ...2 Service Invocation ...3 Data Format ...4 Resource Protection ...5 Summary
  6. 6. .. Web Site - 單向傳播 http://java.oracle.com/
  7. 7. .. Web Application - 單㆒平台雙向互動 http://pixlr.com/o-matic/
  8. 8. .. Web Services - SOAP http://www.webservicex.net/ws/default.aspx
  9. 9. .. Web Services - RESTful http://www.programmableweb.com/
  10. 10. .. Site?Application?App?Service? http://www.dailymail.co.uk/sciencetech/article-2289777/ Facebook-reveals-major-magazine-redesign-make-sharing-pictures-easier.html http://crunchify.com/facebook-likebox-plugin-is-now-upto-4x-faster/ http://skpsinha.com/add-facebook-activity-plugin-to-your-blog/
  11. 11. .. Mobile Services - 多種型式雙向互動 https://www.dropbox.com/install2
  12. 12. .. Web?Mobile?Cloud?Services Java EE 7 Tutorial 的解釋: Web services are client and server applications that communicate over the World Wide Web's (WWW) HyperText Transfer Protocol (HTTP). 實際㆖的情況: Client 端早就不只包括 Browser,還㈲各種 App,Service 間彼此也會串接 Service 為了應付龐大的 Request,也早就 搬到 Cloud Web、Mobile、Cloud 已經完全分不開了!
  13. 13. .. Let the clouds make your life easier https://www.facebook.com/CodeChef
  14. 14. .. Challenge - 15107/s,874560/m http://www.infoq.com/news/2012/11/twitter-ruby-to-java
  15. 15. .. Concerns http://blogs.msdn.com/b/dachou/archive/2009/01/13/cloud-computing-and-the-microsoft-platform.aspx
  16. 16. .. 開發過程㆗要面對的議題 State Persistence Caching Strategy Thread Management Asynchronous/Non-Blocking I/O … 既要能 Scale Up,又要能 Scale Out: 機器不夠好就租更好的機器 ㆟不夠強就聘更強的㆟ 機器不夠多就租更多的機器 ㆟不夠多就聘更多的㆟
  17. 17. .. 想辦法 Scale Up
  18. 18. .. 儘可能 Scale Out
  19. 19. .. 我也只是個凡㆟…
  20. 20. .. 使用與管理過程㆗要面對的議題 Service Invocation Data Format Resource Protection … 在眾神環繞的場合㆗,輕鬆聊㆒㆘凡㆟的話題: JavaScript 怎麼㈺叫後端 Web Services? JSON 格式到底在搞些什麼鬼? 怎麼用 OpenID/OAuth 控管 Resource?
  21. 21. ...1 Introduction ...2 Service Invocation ...3 Data Format ...4 Resource Protection ...5 Summary
  22. 22. .. JavaScript vs. Web Services JavaScript ㈺叫 RESTful Web Services: 拿到 Web Services 的 Resource URI 透過 jQuery 送出 HTTP POST/DELETE/ GET/PUT Request 去操作 Resource JavaScript ㈺叫 SOAP Web Services: 拿到 Web Services 的 WSDL 透過工具產生 Web Services 的 JavaScript Proxy 進行㈺叫 問題是:JavaScript Proxy 怎麼產生?
  23. 23. .. JavaScript vs. SOAP Web Services ㉂己㊢個 JavaScript SOAP Client http://www.guru4.net/articoli/javascript-soap-client/en/ Apache CXF 的 wsdl2js 工具 http://cxf.apache.org/docs/javascript-clients.html 透過 DWR 與 Spring Framework ㈿助 https://blogs.oracle.com/sameert/entry/dwr_and_web_services Donma Hsu 的 NO2AjaxGenerator 工具 http://no2don.blogspot.com/2013/06/a-tool-for-convert-net-webserviceasmx.html …
  24. 24. .. ㉂己㊢個 JavaScript SOAP Client 先透過強大的 soapUI 產生 SOAP Request/Response
  25. 25. .. 透過 jQuery 收送 SOAP Message http://javascript.monstersupreme.cloudbees.net/ 1 $.ajax({ 2 url: 'http://www.webservicex.net/globalweather.asmx', 3 type: 'POST', 4 data: '<soapenv:Envelope 5 xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" 6 xmlns:web="http://www.webserviceX.NET"> 7 <soapenv:Header/> 8 <soapenv:Body> 9 <web:GetWeather> 10 <web:CityName>Taipei</web:CityName> 11 <web:CountryName>Taiwan</web:CountryName> 12 </web:GetWeather> 13 </soapenv:Body> 14 </soapenv:Envelope>', 15 contentType: 'text/xml', 16 success: function (soapResponse) { 17 $("#xml").html($(soapResponse).text()); 18 } 19 });
  26. 26. .. Access-Control-Allow-Origin 問題 https://developer.mozilla.org/en-US/docs/HTTP/Access_control_CORS Cross-site HTTP requests are HTTP requests for resources from a different domain than the domain of the resource making the request. Origin http://localhost:8888 is not allowed by Access-Control-Allow-Origin.
  27. 27. .. Same Origin Policy http://en.wikipedia.org/wiki/Same_origin_policy Web 應用程式使用的 Resource 必須出㉂同㆒個 來源,包括 Protocol、Domain Name、與 Port Number。 常見例外㈲ JavaScript <script> 的 src 屬性、CSS <link> 的 href 屬性、與 <img> 的 src 屬性,可以直接使 用外部㈾源。
  28. 28. .. Chrome 的測試方式 Windows chrome.exe –args –disable-web-security Mac OS X open -a "Google Chrome" --args --disable-web-security
  29. 29. .. jQuery SOAP-Related Plugins jQuery Soap Client http://archive.plugins.jquery.com/project/jqSOAPClient jQuery Soap http://plugins.jquery.com/soap/ jQuery Soap https://github.com/zachofalltrades/jquery.soap …
  30. 30. .. jQuery Soap http://plugins.jquery.com/soap/ 1 $.soap({ 2 url: 'http://www.webservicex.net/globalweather.asmx', 3 method: 'GetWeather', 4 appendMethodToURL: false, 5 soap12: false, 6 SOAPAction: 'http://www.webserviceX.NET/GetWeather', 7 namespaceQualifier: 'web', 8 namespaceURL: 'http://www.webserviceX.NET', 9 params: { 10 CityName: "Taipei", 11 CountryName: "Taiwan" 12 }, 13 success: function (soapResponse) { 14 $("#xml").html(soapResponse.toString()); 15 }, 16 error: function (error) { 17 $("#error").html($(error).text()); 18 } 19 });
  31. 31. .. Apache CXF 的 wsdl2js http://cxf.apache.org/docs/javascript-clients.html wsdl2js 指令: Apache CXF 2.1 版開始支援 目前只支援 SOAP 1.1 版 不支援太複雜的 XML Schema 不支援 Cross-Scripting 執行 wsdl2js 指令: wsdl2js -d WebContent/js http://www.xmlme.com/WSDailyNet.asmx?WSDL
  32. 32. .. Apache CXF 的 wsdl2js 產生 JavaScript Proxy: 1 function xmlme_com_WebServices_DotnetDailyFactSoap(){ 2 this.synchronous = false; 3 this.url = null; 4 ... 5 } 6 7 function xmlme_com_WebServices_GetDotnetDailyFact_op(sCallback, eCallback){ 8 this.client = new CxfApacheOrgClient(this.jsutils); 9 ... 10 this.client.user_onsuccess = sCallback; 11 this.client.user_onerror = eCallback; 12 var closureThis = this; 13 this.client.onsuccess = function(client, responseXml){ 14 closureThis.GetDotnetDailyFact_onsuccess(client, responseXml); }; 15 this.client.onerror = function(client){ 16 closureThis.GetDotnetDailyFact_onerror(client); }; 17 ... 18 this.client.request(this.url, xml, null, this.synchronous, reqHeaders); 19 }
  33. 33. .. Apache CXF 的 wsdl2js Client 端透過 JavaScript Proxy ㈺叫 Web Services: 1 <script src="js/jquery-2.0.3.js"></script> 2 <script src="js/cxf-utils.js"></script> 3 <script src="js/DotnetDailyFact.js"></script> 4 <script> 5 function doDotnetDailyFactSoap(){ 6 var dotnet = new xmlme_com_WebServices_DotnetDailyFactSoap(); 7 dotnet.url = "http://www.xmlme.com/WSDailyNet.asmx"; 8 dotnet.GetDotnetDailyFact( 9 function(response){ 10 $("#xml").html(response.getGetDotnetDailyFactResult()); 11 }, 12 function(error){ 13 $("#xml").html(error); 14 }); 15 } 16 </script>
  34. 34. .. DWR + Spring vs. SOAP DWR 面對前端、Spring Framework 處理後端: Spring Framework 可以透過 XXXXProxyFactoryBean ㈹為㈺叫各種 Web Services DWR 可以為 Java 物件 (XXXXProxyFactoryBean) 在 Server 端動態產生 JavaScript Proxy,方便 Client 端透過 JavaScript ㈺叫 DWR 3.0 版還可以直接透過類似 RESTful 的方式㈺叫 產生出來的 JavaScript Proxy 跟㉂己㊢的 JavaScript Client 端是在同㆒台 Server,所以沒 ㈲ Same Origin Policy 這個問題!
  35. 35. .. Spring Framework 組態設定 http://directwebremoting.org/dwr/documentation/server/integration/spring.html 1 <beans ... 2 xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr" 3 xsi:schemaLocation="... 4 http://www.directwebremoting.org/schema/spring-dwr 5 http://www.directwebremoting.org/schema/spring-dwr-3.0.xsd"> 6 <bean id="globalWeatherSoap" 7 class="org.springframework.remoting.jaxws.JaxWsPortProxyFactoryBean"> 8 <property name="wsdlDocumentUrl" 9 value="http://www.webservicex.net/globalweather.asmx?WSDL" /> 10 <property name="serviceInterface" 11 value="net.webservicex.globalweather.GlobalWeatherSoap" /> 12 <property name="namespaceUri" value="http://www.webserviceX.NET" /> 13 <property name="serviceName" value="GlobalWeather" /> 14 <property name="portName" value="GlobalWeatherSoap" /> 15 <dwr:remote javascript="JGlobalWeatherSoap"> 16 <dwr:include method="getWeather" /> 17 </dwr:remote> 18 </bean> 19 </beans>
  36. 36. .. DWR 組態設定 http://directwebremoting.org/dwr/documentation/server/integration/spring.html 1 <web-app ...> 2 <servlet> 3 <servlet-name>DwrServlet</servlet-name> 4 <servlet-class> 5 org.directwebremoting.spring.DwrSpringServlet 6 </servlet-class> 7 <init-param> 8 <param-name>jsonpEnabled</param-name> 9 <param-value>true</param-value> 10 </init-param> 11 <init-param> 12 <param-name>debug</param-name> 13 <param-value>true</param-value> 14 </init-param> 15 </servlet> 16 <servlet-mapping> 17 <servlet-name>DwrServlet</servlet-name> 18 <url-pattern>/dwr/*</url-pattern> 19 </servlet-mapping> 20 </web-app>
  37. 37. .. jQuery + DWR JavaScript Proxy 1 JGlobalWeatherSoap.getWeather("Taipei", "Taiwan", function(weather){ 2 $("#xml").text(weather); 3 });
  38. 38. .. DWR 很犯規的 JSONP Remoting http://directwebremoting.org/dwr/introduction/remoting_options.html http://www.example.com/dwr/jsonp/className/methodName/param1/param2 1 $.ajax({ 2 type: 'POST', 3 dataType: 'json', 4 url: 'dwr/jsonp/JGlobalWeatherSoap/getWeather/Taipei/Taiwan', 5 success: function (jsonResponse){ 6 $("#dwr").text(JSON.stringify(jsonResponse)); 7 } 8 });
  39. 39. .. jQuery XML to JSON Plugin http://www.fyneworks.com/jquery/xml-to-json/
  40. 40. .. 把怪怪的 JSON 轉成正常的 JSON 1 $.ajax({ 2 type: 'POST', 3 dataType: 'json', 4 url: 'dwr/jsonp/JGlobalWeatherSoap/getWeather/Taipei/Taiwan', 5 success: function (jsonResponse) { 6 $("#dwr").text(jsonResponse.reply); 7 var xml = $("#dwr").text(); 8 var json = $.xml2json(xml); 9 $("#dwr").text(JSON.stringify(json)); 10 } 11 });
  41. 41. .. 更犯規的 ASP.NET Web Services http://directwebremoting.org/dwr/introduction/remoting_options.html 加㆖ ResponseFormat.Json 的 Web Method: 1 [WebMethod] 2 [ScriptMethod(ResponseFormat = ResponseFormat.Json)] 3 public User AddUser(User user) 4 { 5 user.Id = 24601; 6 user.name = "Jean Valjean"; 7 return user; 8 } 雖然是 SOAP Web Services,但是直接透過 Server 端把結果轉成 JSON 格式傳回。
  42. 42. .. Donma Hsu 的 NO2AjaxGenerator http://no2don.blogspot.com/2013/06/a-tool-for-convert-net-webserviceasmx.html
  43. 43. ...1 Introduction ...2 Service Invocation ...3 Data Format ...4 Resource Protection ...5 Summary
  44. 44. .. JSON vs. JavaScript Object http://www.json.org/ JSON 格式的㈾料開頭結尾必須是大括號 JSON 的字串只能用雙引號括起來 JSON 的 key ㆒定要用雙引號括起來
  45. 45. .. ㈲趣的 JSON - eval() 為什麼 eval 方法要求 JSON 格式的字串前後必須 加㆖圓括號: 1 var jsonString = '{"hello": "world"}'; 2 var javascriptObject = eval("(" + jsonString + ")");
  46. 46. .. ㈲趣的 JSON - eval() https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/label JavaScript Syntax ㈲ Label 這種東西: 1 gotohell: 2 for (i = 0; hells.length; i++) { 3 console.log("加油,你可以的!"); 4 continue gotohell; 5 console.log("別傻了!"); 6 } 因為 JavaScript Interpreter 會以 Label ㊝先解 釋,{"key": value} 的 "key" 會解讀為不合法的 Label, 所以 JSON Object 會被認為 Syntax Error。 加㆖圓括號之後,({"key": value}) 就不會被 eval 方法 誤判了!
  47. 47. .. ㈲趣的 JSON - JSON.parse() 如果透過 eval 方法,處理以㆘的 JSON 字串: 1 var jsonString = '{ 2 "username": "Monster", 3 "password": "Supreme" 4 });alert("Hi!"'; 5 var javascriptObject = eval("(" + jsonString + ")"); 會㈲什麼結果?
  48. 48. .. ㈲趣的 JSON - JSON.parse() 建議透過內建或外掛的 JSON.parse 方法,處理以㆘ 的 JSON 字串: 1 var jsonString = '{ 2 "username": "Monster", 3 "password": "Supreme" 4 });alert("Hi!"'; 5 var javascriptObject = JSON.parse(jsonString); 這時又會㈲什麼結果?
  49. 49. .. ㈲趣的 JSON - JAX-RS API 為什麼 JAX-RS 可以輕鬆㆞將 Customized Object 轉成 JSON 字串傳回,但是卻沒辦法直 接傳回 Primitive Data Type? 1 @GET 2 @Path("/getCount") 3 @Produces(APPLICATION_JSON) 4 public int getCount() 5 { 6 return books.size(); 7 } 1 @GET 2 @Path("/getBook/{bookId}") 3 @Produces(APPLICATION_JSON) 4 public Book getBook(@PathParam("bookId") int bookId) 5 { 6 return books.get(bookId); 7 }
  50. 50. .. ㈲趣的 JSON - JAX-RS API http://stackoverflow.com/questions/16408950/ jax-rs-jersey-getinteger-class-and-single-json-primitive-integer-values 因為 JSON 格式的字串,必須是個大括號開頭結 尾的物件,不能夠是單㆒的值。 1 class Result<T> 2 { 3 private T data; 4 // constructors, getters, setters 5 } 6 7 // 傳回 {"data": 1} 之類的結果 8 @GET 9 @Path("/getCount") 10 @Produces(APPLICATION_JSON) 11 public Result<Integer> getCount() 12 { 13 return new Result<Integer>(books.size()); 14 }
  51. 51. .. ㈲趣的 JSON - ASP.NET 為什麼 ASP.NET 傳回的 JSON 字串,㆒定是 {"d": value} 或 {"d": object} 的型式?
  52. 52. .. ㈲趣的 JSON - ASP.NET 因為: JSON Array 是合法的 JavaScript 敘述 <script> 是透過 HTTP GET 觸發 可以改㊢ Array 建構式與 Object __defineSetter__ 方法 所以可以利用這些㈵性鑽漏洞: JSON is not as safe as people think it is JSON Hijacking and How ASP.NET AJAX 1.0 Avoids these Attacks Anatomy of a Subtle JSON Vulnerability JSON Hijacking
  53. 53. .. ㈲趣的 JSON - ASP.NET http://encosia.com/never-worry-about-asp-net-ajaxs-d-again/ ASP.NET 避開可能的 XSS 攻擊的作法: 預設透過 HTTP POST ㈺叫 JSON Service Content-Type ㆒定要 application/json 把 Response 封裝為 JSON Object 讓 Service 傳回非 JSON Array 的結果
  54. 54. .. ㈲趣的 JSON - ASP.NET http://encosia.com/never-worry-about-asp-net-ajaxs-d-again/ 透過 jQuery 解決傳說㆗的 .d 困擾: 1 $.ajax({ 2 type: "POST", 3 url: "WebService.asmx/MethodName", 4 data: "{}", 5 contentType: "application/json; charset=utf-8", 6 dataType: "json", 7 success: function(msg) { 8 if (msg.hasOwnProperty("d")) 9 // Leave the .d behind and pass the rest of 10 // the JSON object forward. 11 DoSomething(msg.d); 12 else 13 // No .d; no transformation necessary. 14 DoSomething(msg); 15 } 16 });
  55. 55. .. 還記得 DWR 的怪怪 JSON 嗎? 所以,ASP.NET ㈲ .d 困擾,DWR ㈲ .reply 困擾!
  56. 56. ...1 Introduction ...2 Service Invocation ...3 Data Format ...4 Resource Protection ...5 Summary
  57. 57. .. Identity Management http://blog.programmableweb.com/2012/08/30/in-defense-of-oauth-2-0/
  58. 58. .. ㆒大堆記不得的帳號與密碼 https://developers.google.com/appengine/articles/openid?hl=zh-tw
  59. 59. .. 可不可以簡化成為㆒組? http://newsletter.ascc.sinica.edu.tw/news/read_news.php?nid=1718
  60. 60. .. OpenID Single Sign-On Scheme 透過㆒個 Trusted Server 集㆗管理 User 的 Personal Data User 在各個不同的 Web Service 都使用相 同的帳號密碼 User 的帳號密碼跟各個 Web Service 是獨 立存在的關係 OpenID Server Listing http://openid.net/get-an-openid/ 比較常見的是 Google、Yahoo!、myOpenID ㆗研院也㈲ myID.tw 專案
  61. 61. .. OpenID 運作方式 https://wiki.auckland.ac.nz/pages/viewpage.action?pageId=30673880
  62. 62. .. 對岸某個網站的㈲趣畫面
  63. 63. .. OAuth A Delegated Authorization Protocol 讓 Consumer Service 能夠存取 User 放在 Provider Service 的㈾料 User 不需直接提供帳號密碼給 Consumer Consumer 想要存取 User 放在 Provider 的 ㈾料時,流程會轉到 Provider 的登入機制 User 登入 Provider 之後,Provider 會回傳 Authorization Token 給 Consumer 之後,Consumer 就可以直接透過 Token 存 取 User 放在 Provider ㆖的㈾料 比較常見的是 Facebook、Twitter 等等
  64. 64. .. OAuth 運作方式 http://www.ubelly.com/2010/02/building-a-simple-oauth-twitter-application/
  65. 65. .. Spring Security vs. OpenID/OAuth OpenID: 透過 openid4java ㈿助,網址是 http://code.google.com/p/openid4java/ OAuth: 透過 Spring Security OAuth ㈿助,網址是 http://www.springsource.org/spring-security-oauth 對 Consumer Service 與 Provider Service 都㈲提供支援 也支援 Two-Legged OAuth 與 OAuth 2.0
  66. 66. .. pac4j 可以大幅簡化複雜度 https://github.com/leleuj
  67. 67. .. 申請 OpenID 帳號 https://www.myopenid.com/
  68. 68. .. 建立㆒個 Facebook App https://developers.facebook.com/
  69. 69. .. Facebook App 的 Permission 列表 https://developers.facebook.com/docs/reference/fql/permissions/
  70. 70. .. 決定請求哪些 Permission https://developers.facebook.com/apps
  71. 71. .. 刪除 Facebook App 的授權 https://www.facebook.com/settings?tab=applications
  72. 72. .. One-Time/Persistent Authentication https://www.myopenid.com/sites
  73. 73. .. Spring Security + pac4j 設定 1 <beans ... 2 <security:http pattern="/fb/**" entry-point-ref="facebookEntryPoint"> 3 <security:custom-filter after="CAS_FILTER" ref="clientFilter" /> 4 <security:intercept-url 5 pattern="/facebook/**" access="IS_AUTHENTICATED_FULLY" /> 6 </security:http> 7 8 <security:http pattern="/form/**" entry-point-ref="formEntryPoint"> 9 <security:custom-filter after="CAS_FILTER" ref="clientFilter" /> 10 <security:intercept-url 11 pattern="/form/**" access="IS_AUTHENTICATED_FULLY" /> 12 </security:http> 13 14 <security:http pattern="/**" entry-point-ref="myOpenIdEntryPoint"> 15 <security:custom-filter after="CAS_FILTER" ref="clientFilter" /> 16 <security:intercept-url 17 pattern="/openid/**" access="IS_AUTHENTICATED_FULLY" /> 18 <security:intercept-url 19 pattern="/**" access="IS_AUTHENTICATED_ANONYMOUSLY" /> 20 </security:http> 21 </beans>
  74. 74. .. Spring Security + pac4j 設定 1 <beans ... 2 <bean id="facebookClient" class="org.pac4j.oauth.client.FacebookClient"> 3 <property name="key" value="Facebook App 的 key" /> 4 <property name="secret" value="Facebook App 的 secret" /> 5 </bean> 6 7 <bean id="authenticator" 8 class="org.pac4j.http.credentials.MyUsernamePasswordAuthenticator" /> 9 10 <bean id="formClient" class="org.pac4j.http.client.FormClient"> 11 <property name="loginUrl" 12 value="http://localhost:8080/SpringSecurityDemo/login.jsp" /> 13 <property name="usernamePasswordAuthenticator" ref="authenticator" /> 14 </bean> 15 16 <bean id="openIdClient" class="org.pac4j.openid.client.MyOpenIdClient" /> 17 </beans>
  75. 75. .. 透過 pac4j 擷取㈾料 1 <body> 2 <h1>Facebook OAuth Authorization</h1> 3 <hr /> 4 <% ClientAuthenticationToken token = (ClientAuthenticationToken) 5 SecurityContextHolder.getContext().getAuthentication(); %> 6 Profile : <%= token.getUserProfile() %> 7 <% UserProfile profile = token.getUserProfile(); 8 Iterator<String> keys = 9 profile.getAttributes().keySet().iterator(); 10 StringBuffer buffer = new StringBuffer(); 11 buffer.append("<p>"); 12 while (keys.hasNext()) 13 { 14 String key = keys.next(); 15 Object value = profile.getAttribute(key); 16 buffer.append(key + ": " + value.toString() + "<br />"); 17 } 18 buffer.append("</p>"); %> 19 <%= buffer.toString() %> 20 </body>
  76. 76. .. Authentication vs. Authorization Authentication 驗證你是不是某個 User Authorization 授與 A 服務使用你放在 B 平台㈾料的權利 所以: OpenID 確認你是某個 User OAuth SlideShare (A) 擁㈲在你 Facebook 塗鴉牆 (B) 貼文的權利,但 SlideShare 並不是你, 也無法用你的㈴義貼文到其他㆟的塗鴉牆
  77. 77. ...1 Introduction ...2 Service Invocation ...3 Data Format ...4 Resource Protection ...5 Summary
  78. 78. .. Apps - Devices - Services http://blogs.msdn.com/b/dotnet/archive/2013/07/16/ responsible-for-a-million-dollar-software-project-but-don-t-know-where-to-start.aspx
  79. 79. .. ㈾策會教研所 ㈾訊技術訓練㆗心 http://www.iiiedu.org.tw/taipei
  80. 80. 謝謝大家! Slide 與 Demos: http://www.slideshare.net/KuoChunSu/ web-site-web-application-web-services-mobile-services http://javascript.monstersupreme.cloudbees.net http://social.monstersupreme.cloudbees.net

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