使用HTTP Token建立執行SSO驗證的Flash Builder應用程式

本檔案中的範例和範例僅適用於JEE環境上的AEM Forms。

您可以使用Flash Builder建立用戶端應用程式,該程式會使用HTTP Token執行單一登入(SSO)驗證。 例如,假設您使用Flash Builder建立基於Web的應用程式。 接下來,假設應用程式包含不同的檢視,其中每個檢視會叫用不同的AEM Forms操作。 您可以建立登入頁面,讓使用者驗證一次,而不必逐一驗證Forms作業的使用者。 一旦驗證,用戶便能夠調用多個操作而無需再次驗證。 例如,如果使用者已登入Workspace(或其他Forms應用程式),則使用者不需要再次驗證。

雖然用戶端應用程式包含執行SSO驗證所需的應用程式邏輯,但AEM Forms使用者管理會執行實際的使用者驗證。 要使用HTTP令牌對用戶進行身份驗證,客戶端應用程式將調用Authentication Manager服務的 authenticateWithHTTPToken 操作。 「使用者管理」可使用HTTP代號來驗證使用者。 若是後續對AEM Forms進行的遠端或Web服務呼叫,您不需要傳遞驗證憑證。

注意

閱讀本節之前,建議您熟悉使用Remoting叫用AEM Forms。 (請參閱 使用AEM Forms Remoting叫用AEM Forms.)

以下AEM Forms短期過程已命名 MyApplication/EncryptDocument,則會在使用者透過SSO驗證後叫用。 (有關此過程的資訊,如其輸入值和輸出值,請參閱 短期流程示例.)

cf_cf_encryptdocumentprocess2

注意

此程式並非以現有的AEM Forms程式為基礎。 若要遵循討論如何叫用此程式的程式碼範例,請建立名為 MyApplication/EncryptDocument 使用workbench。 (請參閱 使用Workbench.)

使用Flash Builder建立的用戶端應用程式會與在 /um/login/um/logout. 也就是說,用戶端應用程式會傳送要求至 /um/login 啟動期間的URL,以判斷使用者的狀態。 然後,使用者管理員會以使用者狀態回應。 客戶端應用程式和用戶管理器安全servlet使用HTTP進行通信。

請求格式

安全servlet需要下列輸入變數:

  • um_no_redirect — 此值必須是 true. 此變數會隨著對User Manager安全servlet提出的所有請求一起提供。 它還幫助安全servlet區分來自flex客戶端或其他Web應用程式的傳入請求。
  • j_username — 此值是登入表單中提供之使用者的登入識別碼值。
  • j_password — 此值是登錄表單中提供的用戶的相應密碼。

j_password 值僅是憑證請求的必要值。 如果未指定密碼值,則安全servlet將檢查以確定您使用的帳戶是否已經驗證。 如果是,您可以繼續;不過,安全servlet不會再驗證您。

注意

若要正確處理i18n,請確定這些值為POST形式。

回應格式

安全servlet配置於 /um/login 使用 URLVariables 格式。 在此格式中,內容類型的輸出為文本/純文字檔案。 輸出包含以&字元分隔的名稱值對。 回應包含下列變數:

  • authenticated — 值為 truefalse.

  • authstate — 此值可包含下列其中一個值:

    • CREDENTIAL_CHALLENGE — 此狀態表示用戶管理員無法通過任何方式確定用戶的身份。 為了進行驗證,需要用戶的用戶名和密碼。
    • SPNEGO_CHALLENGE — 此狀態視為 CREDENTIAL_CHALLENGE.
    • COMPLETE — 此狀態表示用戶管理器能夠驗證用戶。
    • FAILED — 此狀態表示用戶管理器無法驗證用戶。 作為對此狀態的響應,flex客戶端可向用戶顯示錯誤消息。
    • LOGGED_OUT — 此狀態表示用戶已成功註銷。
  • assertionid — 如果州 COMPLETE 則會包含使用者的 assertionId 值。 用戶端應用程式可取得 AuthResult 供使用者使用。

登入程式

當用戶端應用程式啟動時,您可以向 /um/login 安全servlet。 例如, https://<your_serverhost>:<your_port>/um/login?um_no_redirect=true. 當請求到達「使用者管理員」安全servlet時,會執行下列步驟:

  1. 它會尋找名為 lcAuthToken. 如果使用者已登入其他Forms應用程式,則此Cookie會存在。 如果找到Cookie,則會驗證其內容。
  2. 如果啟用了基於標頭的SSO,則servlet將查找已配置的標頭以確定用戶的標識。
  3. 如果啟用了SPNEGO,則Servlet將嘗試啟動SPNEGO並嘗試確定用戶的身份。

如果安全servlet找到符合使用者的有效Token,則安全servlet可讓您繼續並回應 authstate=COMPLETE. 否則,安全servlet將使用 authstate=CREDENTIAL_CHALLENGE. 下列清單說明這些值:

  • Case authstate=COMPLETE:指出使用者已驗證,且 assertionid 值包含用戶的斷言標識符。 此階段,用戶端應用程式可連線至AEM Forms。 為該URL設定的Servlet可取得 AuthResultAuthenticationManager.authenticate(HttpRequestToken) 方法。 此 AuthResult 例項可建立使用者管理員內容並將其儲存在工作階段中。
  • Case authstate=CREDENTIAL_CHALLENGE:指示安全servlet需要用戶的憑據。 作為響應,客戶端應用程式可向用戶顯示登錄螢幕並將獲得的憑據發送到安全servlet(例如, https://<your_serverhost>:<your_port>/um/login?um_no_redirect=true&j_username=administrator&j_password=password). 如果驗證成功,則安全servlet會以回應 authstate=COMPLETE.

如果驗證仍不成功,則安全servlet會以回應 authstate=FAILED. 要響應此值,客戶端應用程式可以顯示一條消息以再次獲得憑據。

注意

同時 authstate=CREDENTIAL_CHALLENGE,建議用戶端以POST表單將取得的憑證傳送至安全servlet。

註銷過程

當用戶端應用程式登出時,您可以傳送要求至下列URL:

https://<your_serverhost>:<your_port>/um/logout?um_no_redirect=true

收到此請求時,User Manager安全servlet會刪除 lcAuthToken cookie和回應 authstate=LOGGED_OUT. 用戶端應用程式收到此值後,應用程式便可執行清除工作。

建立用於使用SSO驗證AEM表單使用者的用戶端應用程式

為了演示如何建立執行SSO驗證的客戶端應用程式,建立了一個示例客戶端應用程式。 下圖顯示用戶端應用程式使用SSO驗證使用者所執行的步驟。

cf_cf_flexsso

上圖說明在客戶端應用程式啟動時發生的應用程式流程。

  1. 用戶端應用程式會觸發 applicationComplete 事件。
  2. 呼叫 ISSOManager.singleSignOn 已建立。 客戶端應用程式向User Manager安全Servlet發送請求。
  3. 如果安全servlet驗證用戶,則 ISSOManager 分派 SSOEvent.AUTHENTICATION_SUCCESS. 作為回應,用戶端應用程式會顯示主要頁面。 在此示例中,首頁調用名為MyApplication/EncryptDocument的AEM Forms短期進程。
  4. 如果安全servlet無法確定用戶是否有效,則應用程式將再次請求用戶憑據。 此 ISSOManager 類派單 SSOEvent.AUTHENTICATION_REQUIRED 事件。 用戶端應用程式會顯示登入頁面。
  5. 登入頁面中提供的憑證會傳送至 ISSOManager.login 方法。 如果驗證成功,則會導致步驟3。 否則, SSOEvent.AUTHENTICATION_FAILED 事件觸發。 用戶端應用程式會顯示登入頁面和適當的錯誤訊息。

建立客戶端應用程式

客戶端應用程式包含以下檔案:

下圖提供用戶端應用程式的視覺表示法。

cf_cf_sso_project

注意

請注意,有兩個名為um和views的包。 建立客戶端應用程式時,請確保將檔案置於其正確的包中。 同時,請確定您將adobe-remoting-provider.swc檔案新增至專案的類別路徑。 (請參閱 包含AEM Forms Flex程式庫檔案.)

建立SSOStandalone.mxml檔案

以下代碼表示SSOStandalone.mxml檔案。

 <?xml version="1.0" encoding="utf-8"?>
 <mx:Application
                 layout="absolute"
                 applicationComplete="initApp()"
                 height="400" width="550"
                 xmlns:v="views.*"
                 backgroundColor="#EDE8F0" viewSourceURL="srcview/index.html">
     <mx:Script>
         <![CDATA[
             import mx.utils.URLUtil;
             import um.SSOEvent;
             import mx.core.UIComponent;
             import um.SSOManager;
             import mx.rpc.events.ResultEvent;
             import mx.utils.ObjectUtil;
             import mx.controls.Alert;

             [Bindable]
             private var _serverURL:String;

             private var _ssoManager:SSOManager;

             private var _progress:UIComponent;

             private var _loginPage:UIComponent;

             private function initApp():void{
                 _serverURL = determineServerUrl();
                 _ssoManager = new SSOManager(_serverURL);

                 _ssoManager.addEventListener(SSOEvent.AUTHENTICATION_FAILED,loginHandler);
                 _ssoManager.addEventListener(SSOEvent.AUTHENTICATION_SUCCESS,loginHandler);
                 _ssoManager.addEventListener(SSOEvent.AUTHENTICATION_REQUIRED,loginHandler);
                 _ssoManager.addEventListener(SSOEvent.LOGOUT_COMPLETE,loginHandler);
                 _ssoManager.addEventListener(SSOEvent.AUTHENTICATION_FAULT,loginHandler);

                 trace("[Main] Add the required event handlers for authentication");
                 _ssoManager.singleSignOn();

                 showBusy();
             }

             private function determineServerUrl():String
             {
                 var s:String ;
                 var appUrl:String = Application.application.url;
                 var givenUrl:String  = ExternalInterface.call("serverUrl.toString");
                 trace("[Main] Application url ["+appUrl+"] Given url ["+givenUrl+"]");
                 if(appUrl != null && appUrl.search("^http") != -1){
                     s = appUrl;
                 }
                 if(s == null){
                     s = givenUrl;
                 }
                 if(s== null){
                     s = "https://hiro-xp:8080/";
                 }
                 s = URLUtil.getFullURL(s,"/");
                 trace("[Main] Would be using ["+s+"] as serverUrl");
                 return s;
             }

             private function loginHandler(event:SSOEvent):void
             {
                 trace("[Main] Handling event "+event.type);
                 switch(event.type)
                 {
                     case SSOEvent.AUTHENTICATION_FAILED:
                         viewContent.selectedChild = login;
                         login.showLoginFailed();
                         break;
                     case SSOEvent.AUTHENTICATION_SUCCESS:
                         viewContent.selectedChild = remoting;
                         break;
                     case SSOEvent.AUTHENTICATION_REQUIRED:
                         viewContent.selectedChild = login;
                         break;
                     case SSOEvent.LOGOUT_COMPLETE:
                         viewContent.selectedChild = logout;
                         break;
                     case SSOEvent.AUTHENTICATION_FAULT:
                         Alert.show("Error doing authentication. Root error ["+event.rootEvent+"]","Authentication Fault",Alert.OK);
                 }
             }

             public function get ssoManager():SSOManager
             {
                 return _ssoManager;
             }

             public function showBusy():void
             {
                 viewContent.selectedChild = progress;
             }

             public function get serverUrl():String
             {
                 return _serverURL;
             }

         ]]>
     </mx:Script>
     <mx:ViewStack x="0" y="0" id="viewContent" >
         <v:login id="login" />
         <v:remoting id="remoting"  />
         <v:progress id="progress" />
         <v:logout id="logout"/>
     </mx:ViewStack>
 </mx:Application>

建立ISSOManager.as檔案

以下代碼表示ISSOManager.as檔案。

 package um
 {
     import flash.events.IEventDispatcher;

     /**
      * The <code>ISSOManager</code> expose operations related to Single Sign On (SSO) in AEM Forms
      * environment. The application should register appropriate <code>SSOEvent</code> handlers prior
      * to calling any of the following operations
      */
     public interface ISSOManager extends IEventDispatcher
     {
         /**
          * Tries to validate whether the user has an already existing session or not (SSO Scenarios). The application
          * may call this method during the initialization. In general this call would lead to one of the
          * following events getting dispatched
          * <ul>
          * <li>SSOEvent.AUTHENTICATION_SUCCESS - If a SSO session was found and valid
          * <li>SSOEvent.AUTHENTICATION_REQUIRED - No SSO session was found and as such authentication is required in
          * the form of username and password.
          * <li>SSOEvent.AUTHENTICATION_FAULT - Some error has occured while connecting to the server
          * </ul>
          */
         function singleSignOn():void;

         /**
          * Authenticates the user using username and password. It may lead to one of the following events
          * <ul>
          * <li>SSOEvent.AUTHENTICATION_SUCCESS - The authentication is successful and a session is established
          * <li>SSOEvent.AUTHENTICATION_FAILED - Authentication has failed
          * </ul>
          */
         function login(username:String, password:String):void;

         /**
          * Terminates the current session and logs out the user.
          */
         function logout():void;

         /**
          * Get the assertionId for the logged in user
          */
         function get assertionId():String;
     }
 }

建立SSOEvent.as檔案

以下代碼表示SSOEvent.as檔案。

 package um
 {
     import flash.events.Event;

     /**
      * The <code>SSOEvent</code> is dispatched for SSO related events
      */
     public class SSOEvent extends Event
     {
         /**
          * This type of event would be dispatched when the Authentication process is successful. Authentication
          * might have been done with SSO or username and password. As a response to this event the application
          * can show the welcome page to the user
          * The application may want to perform specific check for permission/role so as to verify the user is allowed.
          * So as a response to this event the application would do those checks and then only show the welcome page
          */
         public static const AUTHENTICATION_SUCCESS:String = "authenticationSuccess";

         /**
          * This type of event would be dispatched when authentication fails using the username, password.
          * As a response to this type of event an application can show an error message to the user.
          * This event would only happen when authentication is done using username and password and NOT in
          * SSO case.
          */
         public static const AUTHENTICATION_FAILED:String = "authenticationFailed";

         /**
          * This type of event would be dispatched when authentication using SSO is not achieved. And due to
          * that we require the user's username and password for authentication. As a response to this event
          * the application can show the login page to the user.
          */
         public static const AUTHENTICATION_REQUIRED:String = "authenticationRequired";

         /**
          * This type of event would be dispatched when logout is complete. As a response to this event the
          * application may show a logout page informing the user that he has been logged out. Or the application
          * can take the user back to login page
          */
         public static const LOGOUT_COMPLETE:String = "logoutComplete";

         /**
          * This type of event would be dispatched when ever there is a problem in doing Authentication. The root cause
          * can be obtained from the <code>rootEvent</code>.
          */
         public static const AUTHENTICATION_FAULT:String = "authenticationFault";

         private var _rootEvent:Event;

         public function SSOEvent(type:String, rootEvent:Event=null)
         {
             super(type,true,false);
             _rootEvent = rootEvent;
         }

         /**
          * The root event. If current event type is <code>AUTHENTICATION_FAULT</code> then it would be an
          * <code>IOErrorEvent</code> in other cases it would be complete event. Its basic use is to extract the root
          * cause in case of an authentication fault.
          */
         public function get rootEvent():Event
         {
             return _rootEvent;
         }
     }
 }

建立SSOManager.as檔案

以下代碼表示SSOManager.as檔案。

 package um
 {
     import flash.events.Event;
     import flash.events.EventDispatcher;
     import flash.events.IOErrorEvent;
     import flash.external.ExternalInterface;
     import flash.net.URLLoader;
     import flash.net.URLLoaderDataFormat;
     import flash.net.URLRequest;
     import flash.net.URLVariables;

     import mx.utils.ObjectUtil;

     /**
      * Manages the SSO related operations and dispatches appropriate events. It would connect to the UM Filter/Servlet
      * at <code>um/login</code> The UM response would be of form of url encoded variables. It would look for
      * <code>authstate</code> value in the response and depending on that it would proceed.
      *
      * <p>If there is an IO_Error while initial attempt to UM then it would assume it as a 401 response. And it would
      * be assumed that SPNEGO based authenticatin is not working and therefore user would be shown a login page.
      */
     public class SSOManager extends EventDispatcher implements ISSOManager
     {
         private static const SSO_URL:String = "um/login";
         private static const SSO_LOGOUT_URL:String = "um/logout";
         private static const AUTH_COOKIE_NAME:String = "lcAuthToken";

         private var _serverUrl:String;
         private var _assertionId:String;

         /**
          * Constructs an SSOManager with the given server url.
          *
          * @param serverUrl - The uri of the server to connect to. it must be without any context path e.g
          * http://localhost:8080/. The SSOManager would directly append the path of UM exposed SSO url to it
          * for its operations
          */
         public function SSOManager(serverUrl:String)
         {
             _serverUrl = serverUrl;
         }

         public function singleSignOn():void
         {
             sendRequest(SSO_URL,true);
         }

         public function login(username:String, password:String):void
         {
             sendRequest(SSO_URL,false,
                 function(request:URLRequest,vars:URLVariables):void
                 {
                     vars.j_username = username;
                     vars.j_password = password;
                 }
             );
         }

         public function logout():void
         {
             sendRequest(SSO_LOGOUT_URL);
         }

         public function get assertionId():String
         {
             return _assertionId;
         }



         /**
          * Connects to the UM security service.
          */
         private function sendRequest(relativeUrl:String,authenticationRequest:Boolean=false, requestProcessor:Function=null):void
         {
             var loader:URLLoader = new URLLoader();
             loader.dataFormat = URLLoaderDataFormat.VARIABLES;
             var request:URLRequest = new URLRequest(_serverUrl + relativeUrl);
             trace("[SSOmanager] Contacting ["+request.url+"]");
             var vars:URLVariables = new URLVariables();
             vars.um_no_redirect = "true";
             request.data = vars;
             if(requestProcessor != null){
                 requestProcessor(request,vars);
             }

             loader.addEventListener(Event.COMPLETE,authHandler);
             //if its an authentication request then only treat io error as a possible 401
             //for others treat them as faults
             if(authenticationRequest){
                 loader.addEventListener(IOErrorEvent.IO_ERROR,httpAuthenticationHandler);
             }else{
                 loader.addEventListener(IOErrorEvent.IO_ERROR,authFaultHandler);
             }
             trace("[SSOmanager] Sending request "+ ObjectUtil.toString(request));
             loader.load(request);
         }

         private function authHandler(event:Event):void
         {
             var loader:URLLoader = URLLoader(event.target);
             var response:URLVariables = URLVariables(loader.data);
             trace("[SSOmanager] Processing response ["+ObjectUtil.toString(response)+"]");
             handleAuthResult(response["authstate"],response);
         }

         /**
          * Handles the IOErrorEvent. Flash would dispatch IOEvent in response to HTTP 401.
          * There is no way to distinguish it from the genuine IOError.
          */
         private function httpAuthenticationHandler(event:IOErrorEvent):void
         {
             trace("[SSOmanager] Processing IOErrorEvent ["+ObjectUtil.toString(event)+"]");
             handleAuthResult("CREDENTIAL_CHALLENGE");

         }

         /**
          * Dispatches appropriate <code>SSOEvent</code> on the basis of the <code>authstate</code>
          * value of the response.
          * The response is url encoded in for of
          * <pre>
          * authenticated=false&authstate=SPNEGO_CHALLENGE
          * </pre>
          * Depending on <code>authstate</code> the SSOEvent is dispatched
          */
         private function handleAuthResult(authState:String,response:URLVariables = null):void
         {
             trace("[SSOmanager] processing state "+authState);
             switch(authState)
             {
                 case "FAILED"  :
                     dispatchEvent(new SSOEvent(SSOEvent.AUTHENTICATION_FAILED));
                     break;
                 case "COMPLETE" :
                     _assertionId = response ? response["assertionid"] : null;
                     dispatchEvent(new SSOEvent(SSOEvent.AUTHENTICATION_SUCCESS));
                     break;
                 case "CREDENTIAL_CHALLENGE" :
                     dispatchEvent(new SSOEvent(SSOEvent.AUTHENTICATION_REQUIRED));
                     break;
                 case "LOGGED_OUT" :
                     dispatchEvent(new SSOEvent(SSOEvent.LOGOUT_COMPLETE));
                     break;
                 default:
                     dispatchEvent(new SSOEvent(SSOEvent.AUTHENTICATION_REQUIRED));
                     break;
             }
         }

         private function authFaultHandler(event:Event):void
         {
             dispatchEvent(new SSOEvent(SSOEvent.AUTHENTICATION_FAULT,event));
         }

     }
 }

建立UserManager.as檔案

以下代碼表示UserManager.as檔案。

 package um
 {
     import flash.events.Event;
     import mx.rpc.soap.WebService;
     import mx.rpc.soap.Operation;
     import mx.rpc.IResponder;
     import mx.rpc.events.FaultEvent;
     import mx.rpc.events.ResultEvent;
     import mx.rpc.soap.LoadEvent;

     public class UserManager
     {
         private var _ssoManager:ISSOManager;
         private var _serverUrl:String;

         public function UserManager(ssoManager:ISSOManager,serverUrl:String)
         {
             _serverUrl = serverUrl;
             _ssoManager = ssoManager;
         }

         public function retrieveAssertion(responder:IResponder):String
         {
             var assertionId:String = _ssoManager.assertionId;
             if(!assertionId)
             {
                 trace("[UserManager] AssertionId not found");
                 return null;
             }

             var ws:WebService = new WebService();
             var wsdl:String = _serverUrl+'soap/services/AuthenticationManagerService?wsdl&lc_version=8.2.1';
             ws.loadWSDL(wsdl);
             ws.addEventListener(LoadEvent.LOAD,
                 function(event:Event):void
                 {
                     trace("[UserManager] WSDL loaded");
                     var authenticate:Operation = ws.authenticateWithHttpToken as Operation;
                     authenticate.resultFormat = "e4x";
                     authenticate.addEventListener(ResultEvent.RESULT,
                         function(event:Event):void
                         {
                             responder.result(event);
                         }
                     );
                     authenticate.send({assertionId:assertionId});
                 }
             );

             ws.addEventListener(FaultEvent.FAULT,
                 function(event:Event):void
                 {
                     responder.fault(event);
                 }
             );
             return null;
         }
     }
 }

建立login.mxml檔案

下列程式碼代表login.mxml檔案。

 <?xml version="1.0" encoding="utf-8"?>
 <mx:Canvas  width="500" height="400">
     <mx:Script>
         <![CDATA[
             import mx.core.Application;
             public function showLoginFailed():void
             {
                 loginMessage.text = "Username or Password incorrect";
             }

             private function doLogin():void
             {
                 Application.application.ssoManager.login(j_username.text,j_password.text);
                 Application.application.showBusy();
             }

         ]]>
     </mx:Script>

     <mx:VBox height="113" width="244" x="128" y="144" horizontalAlign="center" verticalGap="10">
         <mx:HBox width="100%">
             <mx:HBox width="100%" verticalAlign="middle" horizontalAlign="center" height="32">
                 <mx:Label text="Username" fontWeight="bold"/>
                 <mx:TextInput id="j_username"/>
             </mx:HBox>
         </mx:HBox>
         <mx:HBox width="100%" height="33" horizontalAlign="center" horizontalGap="10" verticalAlign="middle">
             <mx:Label text="Password" fontWeight="bold"/>
             <mx:TextInput displayAsPassword="true" id="j_password"/>
         </mx:HBox>
         <mx:Button label="Login" click="doLogin()"/>
     </mx:VBox>
     <mx:Text x="128" y="122" id="loginMessage" width="230" height="14"/>
     <mx:Label x="154" y="65" text="AEM Forms SSO Demo" fontFamily="Georgia" fontSize="20" color="#0A0A0A"/>
 </mx:Canvas>

建立logout.mxml檔案

以下代碼表示logout.mxml檔案。

 <?xml version="1.0" encoding="utf-8"?>
 <mx:Canvas  width="500" height="400">
     <mx:Label x="97" y="188" text="You have successfully logged out from the application"/>

 </mx:Canvas>

建立progress.mxml檔案

以下代碼表示progress.mxml檔案。

 <?xml version="1.0" encoding="utf-8"?>
 <mx:Canvas >
     <mx:Label x="151" y="141" text="Wait...."/>
     <mx:SWFLoader source="LoadingCircle.swf" width="50" height="50" horizontalCenter="0" verticalCenter="0"/>
 </mx:Canvas>

建立remoteing.mxml檔案

以下代碼表示調用的remoteing.mxml檔案 MyApplication/EncryptDocument 程式。 由於檔案會傳遞至程式,因此負責將安全檔案傳遞至AEM Forms的應用程式邏輯位於此檔案中。 (請參閱 使用遠程功能傳遞安全文檔以調用進程.)

 <?xml version="1.0" encoding="utf-8"?>
 <mx:Canvas  width="664" height="400" creationComplete="initializeChannelSet()" xmlns:views="views.*">
     <mx:Script>

         <![CDATA[

             import mx.rpc.livecycle.DocumentReference;
             import flash.net.FileReference;
             import flash.net.URLRequest;
             import flash.events.Event;
             import flash.events.DataEvent;
             import mx.messaging.ChannelSet;
             import mx.messaging.channels.AMFChannel;
             import mx.rpc.events.ResultEvent;
             import mx.collections.ArrayCollection;
             import mx.rpc.AsyncToken;
             import um.UserManager;
             import mx.rpc.events.ResultEvent;
             import mx.rpc.events.FaultEvent;
             import mx.core.Application;
             import mx.rpc.Responder;
             import mx.utils.ObjectUtil;

             // Classes used in file retrieval
             private var fileRef:FileReference = new FileReference();
             private var docRef:DocumentReference = new DocumentReference();
             private var parentResourcePath:String = "/";
             //private var serverPort:String = "'[server]:[port]'";
             private var serverPort:String = "'[server]:[port]'";
             private var now1:Date;
             private var userManager:UserManager;

             // Define a ChannelSet object.
             public var cs:ChannelSet;

             // Holds information returned from AEM Forms
             [Bindable]
             public var progressList:ArrayCollection = new ArrayCollection();


             // Set up channel set to invoke AEM Forms.
             // This must be done before calling any service or process, but only
             // once for the entire application.
             private function initializeChannelSet():void {
                 cs = new ChannelSet();
                 cs.addChannel(new AMFChannel("remoting-amf", "https://" + serverPort + "/remoting/messagebroker/amf"));
                 EncryptDocument.channelSet = cs;

             //Get the user that is authenticated
             userManager = new UserManager(Application.application.ssoManager,Application.application.serverUrl);
             userManager.retrieveAssertion(
                     new mx.rpc.Responder(
                         function(event:ResultEvent):void
                         {
                             var name:String = XML(event.currentTarget.lastResult)..*::authenticatedUser.*::userid.text();
                             username.text = "Welcome "+name;
                         },
                         function(event:FaultEvent):void
                         {
                             mx.controls.Alert.show(event.fault.faultString,'Error')
                         }
                     )
                 );

             }

             // Call this method to upload the file.
             // This creates a file picker and lets the user select a PDF file to pass to the EncryptDocument process.
             private function uploadFile():void {
                 fileRef.addEventListener(Event.SELECT, selectHandler);
                 fileRef.addEventListener(DataEvent.UPLOAD_COMPLETE_DATA,completeHandler);
                 fileRef.browse();
             }

             // Gets called for selected file. Does the actual upload via the file upload servlet.
             private function selectHandler(event:Event):void {
                 var authTokenService:RemoteObject = new RemoteObject("LC.FileUploadAuthenticator");
                 authTokenService.addEventListener("result", authTokenReceived);
                 authTokenService.channelSet = cs;
                 authTokenService.getFileUploadToken();
             }

             private function authTokenReceived(event:ResultEvent):void
             {
                 var token:String = event.result as String;
                 var request:URLRequest = DocumentReference.constructRequestForUpload("https://hiro-xp:8080", token);

                 try
                 {
                     fileRef.upload(request);
                 }
                 catch (error:Error)
                 {
                     trace("Unable to upload file.");
                 }
             }

             // Called once the file is completely uploaded.
             private function completeHandler(event:DataEvent):void {

                 // Set the docRefs url and referenceType parameters
                 docRef.url = event.data as String;
                 docRef.referenceType=DocumentReference.REF_TYPE_URL;
                 executeInvokeProcess();
             }

             //This method invokes the EncryptDocument process
             public function executeInvokeProcess():void {
                 //Create an Object to store the input value for the EncryptDocument process
                 now1 = new Date();

                 var params:Object = new Object();
                 params["inDoc"]=docRef;

                 // Invoke the EncryptDocument process
                 var token:AsyncToken;
                 token = EncryptDocument.invoke(params);
                 token.name = name;
             }


             // This method handles a successful conversion invocation
             public function handleResult(event:ResultEvent):void
             {

                 //Retrieve information returned from the service invocation
                 var token:AsyncToken = event.token;
                 var res:Object = event.result;
                 var dr:DocumentReference = res["outDoc"] as DocumentReference;
                 var now2:Date = new Date();

                 // These fields map to columns in the DataGrid
                 var progObject:Object = new Object();
                 progObject.filename = token.name;
                 progObject.timing = (now2.time - now1.time).toString();
                 progObject.state = "Success";
                 progObject.link = "<a href='" + dr.url + "'> open </a>";
                 progressList.addItem(progObject);
             }


             private function resultHandler(event:ResultEvent):void {
             // Do anything else here.

             }

             private function logout():void
             {
                 Application.application.ssoManager.logout();
                 Application.application.showBusy();
             }


         ]]>

     </mx:Script>

     <mx:RemoteObject id="EncryptDocument" destination="MyApplication/EncryptDocument" result="resultHandler(event);">
             <mx:method name="invoke" result="handleResult(event)"/>
     </mx:RemoteObject>


     <!--//This consists of what is displayed on the webpage-->
     <mx:Panel id="lcPanel" title="EncryptDocument  (Deprecated for AEM forms) AEM Forms Remoting Example"
           height="25%" width="25%" paddingTop="10" paddingLeft="10" paddingRight="10"
           paddingBottom="10">
         <mx:Label width="100%" color="blue"
                   id="username"/>

         <mx:DataGrid x="10" y="0" width="500" id="idProgress" editable="false"
                          dataProvider="{progressList}" height="231" selectable="false" >
         <mx:columns>
                 <mx:DataGridColumn headerText="Filename" width="200" dataField="filename" editable="false"/>
                 <mx:DataGridColumn headerText="State" width="75" dataField="state" editable="false"/>
                 <mx:DataGridColumn headerText="Timing" width="75" dataField="timing" editable="false"/>
                 <mx:DataGridColumn headerText="Click to Open" dataField="link" editable="false" >
                 <mx:itemRenderer>

                         <mx:Component>
                         <mx:Text x="0" y="0" width="100%" htmlText="{data.link}"/>
                         </mx:Component>
                     </mx:itemRenderer>
             </mx:DataGridColumn>
         </mx:columns>
     </mx:DataGrid>
     <mx:Button label="Select File" click="uploadFile()" />
     <mx:Button label="Logout"  click="logout()" />
     </mx:Panel>
 </mx:Canvas>


其他資訊

以下各節提供了描述客戶端應用程式與User Manager安全servlet之間通信的其他詳細資訊。

發生新的驗證

在此情況下,使用者會嘗試從用戶端應用程式首次登入AEM Forms。 (不存在與用戶相關的先前會話。) 在 applicationComplete 事件、 SSOManager.singleSignOn 會叫用方法,向使用者管理員傳送要求。

GET /um/login?um%5Fno%5Fredirect=true HTTP/1.1

User Manager安全servlet使用以下值進行響應:

HTTP/1.1 200 OK

authenticated=false&authstate=CREDENTIAL_CHALLENGE

作為此值的回應, SSOEvent.AUTHENTICATION_REQUIRED 會發送值。 因此,用戶端應用程式會向使用者顯示登入畫面。 憑證會提交回使用者管理員安全servlet。

GET /um/login?um%5Fno%5Fredirect=true&j%5Fusername=administrator&j%5Fpassword=password HTTP/1.1

User Manager安全servlet使用以下值進行響應:

 HTTP/1.1 200 OK
 Set-Cookie: lcAuthToken=53630BC8-F6D4-F588-5D5B-4668EFB2EC7A; Path=/
 authenticated=true&authstate=COMPLETE&assertionid=53630BC8-F6D4-F588-5D5B-4668EFB2EC7A

因此, authstate=COMPLETE the SSOEvent.AUTHENTICATION_SUCCESS 已發送。 如有必要,客戶端應用程式可執行進一步處理。 例如,可以建立記錄來追蹤使用者驗證的日期和時間。

已驗證用戶

在此情況下,使用者已登入AEM Forms,然後導覽至用戶端應用程式。 在啟動期間,客戶端應用程式連接到User Manager安全servlet。

 GET /um/login?um%5Fno%5Fredirect=true HTTP/1.1
 Cookie: JSESSIONID=A4E0BCC2DD4BCCD3167C45FA350BD72A; lcAuthToken=53630BC8-F6D4-F588-5D5B-4668EFB2EC7A

由於使用者已通過驗證,因此使用者管理員Cookie會存在,並傳送至使用者管理員安全Servlet。 Servlet接著會取得 assertionId 值並驗證其是否有效。 如果有效,則 authstate=COMPLETE 的URL。 否則 authstate=CREDENTIAL_CHALLENGE 的URL。 以下是典型的回應:

 HTTP/1.1 200 OK
        authenticated=true&authstate=COMPLETE&assertionid=53630BC8-F6D4-F588-5D5B-4668EFB2EC7A

在此情況下,使用者不會顯示登入畫面,而會直接帶至歡迎畫面。

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