_web_client_engine_8cpp-source.html

symbian 利用http上传的例子.

<a name="l00396"></a>00396             <span class="keywordflow">if</span> ( <a class="code" href="class_c_web_client_engine.html#6da7cfd219226594e04b0bf1b29cd50d">iApplicationUi</a> )
<a name="l00397"></a>00397                 <a class="code" href="class_c_web_client_engine.html#6da7cfd219226594e04b0bf1b29cd50d">iApplicationUi</a>-&gt;<a class="code" href="class_c_web_client_app_ui.html#53a2a56d9127e44f97de4d5ed7e6c132">RemoveWaitDialogL</a>();
<a name="l00398"></a>00398 
<a name="l00399"></a>00399             <span class="comment">// Transaction can be closed now. It's not needed anymore.</span>
<a name="l00400"></a>00400             aTransaction.Close();
<a name="l00401"></a>00401             <a class="code" href="class_c_web_client_engine.html#d19da1539625146ffaa8979ee6ced8c3">iRunning</a> = EFalse;
<a name="l00402"></a>00402             }
<a name="l00403"></a>00403             <span class="keywordflow">break</span>;
<a name="l00404"></a>00404 
<a name="l00405"></a>00405         <span class="keywordflow">case</span> THTTPEvent::EFailed:
<a name="l00406"></a>00406             {
<a name="l00407"></a>00407             <span class="comment">// Transaction completed with failure. </span>
<a name="l00408"></a>00408             HBufC* textResource = StringLoader::LoadLC( R_WEBCLIENT_TRANSACTION_FAILED );
<a name="l00409"></a>00409             <a class="code" href="class_c_web_client_engine.html#5598d19cc10719afd28055422087a200">iObserver</a>.<a class="code" href="class_m_web_client_observer.html#ba45586e3b6414e9a001aa362b83f6d3">ClientEvent</a>( *textResource );
<a name="l00410"></a>00410             CleanupStack::PopAndDestroy( textResource );
<a name="l00411"></a>00411             <span class="keywordflow">if</span> ( <a class="code" href="class_c_web_client_engine.html#6da7cfd219226594e04b0bf1b29cd50d">iApplicationUi</a> )
<a name="l00412"></a>00412                 <a class="code" href="class_c_web_client_engine.html#6da7cfd219226594e04b0bf1b29cd50d">iApplicationUi</a>-&gt;<a class="code" href="class_c_web_client_app_ui.html#53a2a56d9127e44f97de4d5ed7e6c132">RemoveWaitDialogL</a>();
<a name="l00413"></a>00413             aTransaction.Close();
<a name="l00414"></a>00414             <a class="code" href="class_c_web_client_engine.html#d19da1539625146ffaa8979ee6ced8c3">iRunning</a> = EFalse;
<a name="l00415"></a>00415             }
<a name="l00416"></a>00416             <span class="keywordflow">break</span>;
<a name="l00417"></a>00417 
<a name="l00418"></a>00418         <span class="keywordflow">default</span>:
<a name="l00419"></a>00419             <span class="comment">// There are more events in THTTPEvent, but they are not usually </span>
<a name="l00420"></a>00420             <span class="comment">// needed. However, event status smaller than zero should be handled </span>
<a name="l00421"></a>00421             <span class="comment">// correctly since it's error.</span>
<a name="l00422"></a>00422             {
<a name="l00423"></a>00423             HBufC* textResource;
<a name="l00424"></a>00424             <span class="keywordflow">if</span> ( aEvent.iStatus &lt; 0 )
<a name="l00425"></a>00425                 {
<a name="l00426"></a>00426                 <span class="comment">// Load a string from the resource file and add status to string</span>
<a name="l00427"></a>00427                 textResource = StringLoader::LoadLC( R_WEBCLIENT_TRANSACTION_ERROR,
<a name="l00428"></a>00428                                                      aEvent.iStatus );
<a name="l00429"></a>00429                 <span class="keywordflow">if</span> ( <a class="code" href="class_c_web_client_engine.html#6da7cfd219226594e04b0bf1b29cd50d">iApplicationUi</a> )
<a name="l00430"></a>00430                     <a class="code" href="class_c_web_client_engine.html#6da7cfd219226594e04b0bf1b29cd50d">iApplicationUi</a>-&gt;<a class="code" href="class_c_web_client_app_ui.html#53a2a56d9127e44f97de4d5ed7e6c132">RemoveWaitDialogL</a>();
<a name="l00431"></a>00431                 <span class="comment">// Just close the transaction on errors</span>
<a name="l00432"></a>00432                 aTransaction.Close();
<a name="l00433"></a>00433                 <a class="code" href="class_c_web_client_engine.html#d19da1539625146ffaa8979ee6ced8c3">iRunning</a> = EFalse;
<a name="l00434"></a>00434                 } <span class="keywordflow">else</span> {
<a name="l00435"></a>00435                 <span class="comment">// Other events are not errors (e.g. permanent and temporary redirections)</span>
<a name="l00436"></a>00436                 textResource = StringLoader::LoadLC( R_WEBCLIENT_UNRECOGNISED_EVENT,
<a name="l00437"></a>00437                                                      aEvent.iStatus );
<a name="l00438"></a>00438                 }
<a name="l00439"></a>00439             <a class="code" href="class_c_web_client_engine.html#5598d19cc10719afd28055422087a200">iObserver</a>.<a class="code" href="class_m_web_client_observer.html#ba45586e3b6414e9a001aa362b83f6d3">ClientEvent</a>( *textResource );
<a name="l00440"></a>00440             CleanupStack::PopAndDestroy( textResource );
<a name="l00441"></a>00441             }
<a name="l00442"></a>00442             <span class="keywordflow">break</span>;
<a name="l00443"></a>00443         }
<a name="l00444"></a>00444     }
<a name="l00445"></a>00445 
<a name="l00446"></a>00446 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00447"></a>00447 <span class="comment">// CWebClientEngine::MHFRunError()</span>
<a name="l00448"></a>00448 <span class="comment">// Inherited from MHTTPTransactionCallback</span>
<a name="l00449"></a>00449 <span class="comment">// Called by framework when *leave* occurs in handling of transaction event.</span>
<a name="l00450"></a>00450 <span class="comment">// These errors must be handled, or otherwise HTTP-CORE 6 panic is thrown.</span>
<a name="l00451"></a>00451 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00452"></a>00452 <span class="comment">//</span>
<a name="l00453"></a><a class="code" href="class_c_web_client_engine.html#4f19969440d49e831aaec230508b0a3c">00453</a> TInt <a class="code" href="class_c_web_client_engine.html#4f19969440d49e831aaec230508b0a3c">CWebClientEngine::MHFRunError</a>( TInt aError, 
<a name="l00454"></a>00454                                     RHTTPTransaction <span class="comment">/*aTransaction*/</span>, 
<a name="l00455"></a>00455                                     <span class="keyword">const</span> THTTPEvent&amp; <span class="comment">/*aEvent*/</span>)
<a name="l00456"></a>00456     {
<a name="l00457"></a>00457     <span class="comment">// Handle error and return KErrNone.</span>
<a name="l00458"></a>00458     TRAPD( err, <a class="code" href="class_c_web_client_engine.html#2f2fdeb2077849ca331b415db028feba">HandleRunErrorL</a>( aError ) );
<a name="l00459"></a>00459     <span class="keywordflow">if</span>( err )
<a name="l00460"></a>00460         Panic( EClientEngine );
<a name="l00461"></a>00461     <span class="keywordflow">return</span> KErrNone;
<a name="l00462"></a>00462     }
<a name="l00463"></a>00463 
<a name="l00464"></a>00464 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00465"></a>00465 <span class="comment">// CWebClientEngine::GetCredentialsL()</span>
<a name="l00466"></a>00466 <span class="comment">//</span>
<a name="l00467"></a>00467 <span class="comment">// Inherited from MHTTPAuthenticationCallback</span>
<a name="l00468"></a>00468 <span class="comment">// Called by framework when we requested authenticated page and framework </span>
<a name="l00469"></a>00469 <span class="comment">// needs to know username and password.</span>
<a name="l00470"></a>00470 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00471"></a><a class="code" href="class_c_web_client_engine.html#ffb00f6bfbe7b1f8512c8f8a948bc765">00471</a> TBool <a class="code" href="class_c_web_client_engine.html#ffb00f6bfbe7b1f8512c8f8a948bc765">CWebClientEngine::GetCredentialsL</a>( <span class="keyword">const</span> TUriC8&amp; <span class="comment">/*aUri*/</span>,
<a name="l00472"></a>00472                                                RString aRealm, 
<a name="l00473"></a>00473                                                RStringF <span class="comment">/*aAuthenticationType*/</span>,
<a name="l00474"></a>00474                                                RString&amp; aUsername, 
<a name="l00475"></a>00475                                                RString&amp; aPassword) 
<a name="l00476"></a>00476     {
<a name="l00477"></a>00477     <span class="comment">// aURI, aReal and aAuthenticationType are informational only. We only need </span>
<a name="l00478"></a>00478     <span class="comment">// to set aUsername and aPassword and return ETrue, if aUsername and </span>
<a name="l00479"></a>00479     <span class="comment">// aPassword are provided by user.</span>
<a name="l00480"></a>00480 
<a name="l00481"></a>00481     <span class="comment">// Query user name and password</span>
<a name="l00482"></a>00482     TBuf&lt;KMaxUserNameLength&gt; userName;
<a name="l00483"></a>00483     TBuf&lt;KMaxPasswordLength&gt; password;
<a name="l00484"></a>00484     CAknMultiLineDataQueryDialog* dlg = 
<a name="l00485"></a>00485         CAknMultiLineDataQueryDialog::NewL( userName, password );
<a name="l00486"></a>00486 
<a name="l00487"></a>00487     <span class="keywordflow">if</span> ( !dlg-&gt;ExecuteLD( R_WEBCLIENT_DIALOG_USER_PASSWORD_QUERY ))
<a name="l00488"></a>00488         <span class="keywordflow">return</span> EFalse; <span class="comment">// No credentials given; must return EFalse</span>
<a name="l00489"></a>00489 
<a name="l00490"></a>00490     <span class="comment">// Set aUsername and aPassword</span>
<a name="l00491"></a>00491     TBuf8&lt;KMaxUserNameLength&gt; temp;
<a name="l00492"></a>00492     temp.Copy( userName );
<a name="l00493"></a>00493     TRAPD( err, aUsername = aRealm.Pool().OpenStringL( temp ));
<a name="l00494"></a>00494     <span class="keywordflow">if</span> ( !err ) 
<a name="l00495"></a>00495         {
<a name="l00496"></a>00496         temp.Copy( password );
<a name="l00497"></a>00497         TRAP( err, aPassword = aRealm.Pool().OpenStringL( temp ));
<a name="l00498"></a>00498         <span class="keywordflow">if</span> ( !err ) <span class="keywordflow">return</span> ETrue;
<a name="l00499"></a>00499         }
<a name="l00500"></a>00500 
<a name="l00501"></a>00501     <span class="comment">// Return ETrue if user has given credentials (username and password), </span>
<a name="l00502"></a>00502     <span class="comment">// otherwise EFlase</span>
<a name="l00503"></a>00503     <span class="keywordflow">return</span> EFalse;
<a name="l00504"></a>00504     }
<a name="l00505"></a>00505 
</pre></div><hr>

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