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/*
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============================================================================
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Name : HttpClient.cpp
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Author : John Kern
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Copyright (c) 2009 Symbian Foundation Ltd
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This component and the accompanying materials are made available
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under the terms of the License "Eclipse Public License v1.0"
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which accompanies this distribution, and is available
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at the URL "http://www.eclipse.org/legal/epl-v10.html".
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Initial Contributors:
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- Symbian Foundation Ltd - initial contribution.
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Contributors:
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- John Kern
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- Symsource
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Description : Web client
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============================================================================
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*/
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#include <activeapdb.h>
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#include <HttpStringConstants.h> // HTTP
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#include "HttpClient.h"
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// HTTP header values
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_LIT8(KUserAgent, "NPR 1.0"); // Name of the client app.
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_LIT8(KAccept, "text/*"); // Accept any (but only) text content (errors may not be sent as "text/x-visto-ota-activation").
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CHttpClient* CHttpClient::NewL(MHTTPObserver& aObserver)
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{
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CHttpClient* self = new (ELeave)CHttpClient(aObserver);
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CleanupStack::PushL(self);
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self->ConstructL();
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CleanupStack::Pop();
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return self;
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}
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CHttpClient::CHttpClient(MHTTPObserver& aObserver)
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:iObserver(aObserver)
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{
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}
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CHttpClient::~CHttpClient()
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{
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if (iTransactionActive)
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{
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iHttpTransaction.Cancel();
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iTransactionActive = EFalse;
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}
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iHTTPSession.Close();
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iConnection.Close();
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iSocketServ.Close();
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delete iResponseBuffer;
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delete iUri;
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}
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void CHttpClient::ConstructL()
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{
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// Open the Http session
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iHTTPSession.OpenL();
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User::LeaveIfError(iSocketServ.Connect());
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User::LeaveIfError(iConnection.Open(iSocketServ));
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User::LeaveIfError(iConnection.Start());
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}
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void CHttpClient::SendRequestL(const TDesC& aUri)
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{
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if(iUri)
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{
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delete iUri;
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iUri = NULL;
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}
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iUri = HBufC8::NewL(aUri.Length());
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TPtr8 uriPtr = iUri->Des();
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uriPtr.Copy(aUri);
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TUriParser8 uriParser;
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User::LeaveIfError(uriParser.Parse(uriPtr));
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TBuf8<256> buf;
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buf.Copy(uriParser.UriDes());
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RStringPool strPool = iHTTPSession.StringPool();
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iHttpConnInfo = iHTTPSession.ConnectionInfo();
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iHttpConnInfo.SetPropertyL(strPool.StringF(HTTP::EHttpSocketServ, RHTTPSession::GetTable() ), THTTPHdrVal(iSocketServ.Handle()));
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iHttpConnInfo.SetPropertyL(strPool.StringF(HTTP::EHttpSocketConnection, RHTTPSession::GetTable() ),THTTPHdrVal (REINTERPRET_CAST(TInt, &(iConnection))));
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if(iTransactionActive)
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{
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iHttpTransaction.Cancel();
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iHttpTransaction.Close();
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iTransactionActive = EFalse;
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}
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// Create transaction
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iHttpTransaction = iHTTPSession.OpenTransactionL(
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uriParser,
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*this,
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iHTTPSession.StringPool().StringF(HTTP::EPOST, RHTTPSession::GetTable()));
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iTransactionActive = ETrue;
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// Set transaction headers.
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RHTTPHeaders headers = iHttpTransaction.Request().GetHeaderCollection();
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AddHeaderL(headers, HTTP::EUserAgent, KUserAgent);
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AddHeaderL(headers, HTTP::EAccept, KAccept);
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// Delete any previous response.
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delete iResponseBuffer;
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iResponseBuffer = NULL;
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// Set the body.
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iHttpTransaction.Request().SetBody(*this);
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// Submit the request
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iHttpTransaction.SubmitL();
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}
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/**
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* Add a header to a header set
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*
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* @param aHeaders The header set to be modified
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* @param aHeaderField The name of the header to be added
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* @param aHeaderValue The value for the header to be added
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*/
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void CHttpClient::AddHeaderL(RHTTPHeaders aHeaders,
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TInt aHeaderField,
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const TDesC8& aHeaderValue)
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{
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RStringPool stringPool = iHTTPSession.StringPool(); // Do not close this session here.
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RStringF valStr = stringPool.OpenFStringL(aHeaderValue);
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CleanupClosePushL(valStr);
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THTTPHdrVal headerVal(valStr);
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aHeaders.SetFieldL(stringPool.StringF(aHeaderField, RHTTPSession::GetTable()), headerVal);
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CleanupStack::PopAndDestroy(); // valStr
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}
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/**
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* Add a header to a header set
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*
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* @param aHeaders The header set to be modified
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* @param aHeaderField The name of the header to be added
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* @param aHeaderValue The value for the header to be added
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* @param aExtensionValue The extension value for the header
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*/
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void CHttpClient::AddHeaderL(RHTTPHeaders aHeaders,
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TInt aHeaderField,
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const TDesC8& aHeaderValue,
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TInt aExtensionField,
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const TDesC8& aExtensionValue)
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{
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RStringPool stringPool = iHTTPSession.StringPool(); // Do not close this session here.
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RStringF valStr = stringPool.OpenFStringL(aHeaderValue);
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CleanupClosePushL(valStr);
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THTTPHdrVal headerVal(valStr);
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RStringF extensionStr = stringPool.OpenFStringL(aExtensionValue);
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CleanupClosePushL(extensionStr);
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THTTPHdrVal extensionVal(extensionStr);
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aHeaders.SetFieldL(
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stringPool.StringF(aHeaderField, RHTTPSession::GetTable()),
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headerVal,
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stringPool.StringF(aExtensionField, RHTTPSession::GetTable()),
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extensionVal);
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CleanupStack::PopAndDestroy(2); // extensionStr, valStr
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}
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void CHttpClient::MHFRunL(RHTTPTransaction aTransaction, const THTTPEvent &aEvent)
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{
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switch (aEvent.iStatus){
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case THTTPEvent::EGotResponseHeaders:
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{
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// HTTP response headers have been received.
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// Pass status information to observer.
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RHTTPResponse resp = aTransaction.Response();
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// Get status code
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TInt statusCode = resp.StatusCode();
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// Get status text
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RStringF statusStr = resp.StatusText();
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HBufC* statusBuf = HBufC::NewLC(statusStr.DesC().Length());
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statusBuf->Des().Copy(statusStr.DesC());
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// Inform observer
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iObserver.ResponseStatusL(statusCode, *statusBuf);
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CleanupStack::PopAndDestroy(statusBuf);
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break;
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}
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case THTTPEvent::EGotResponseBodyData:
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{
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// Get text of response body
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MHTTPDataSupplier* dataSupplier = aTransaction.Response().Body();
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TPtrC8 ptr;
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dataSupplier->GetNextDataPart(ptr);
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// Append to iResponseBuffer
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if (!iResponseBuffer)
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{
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iResponseBuffer = ptr.AllocL();
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}
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else
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{
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iResponseBuffer = iResponseBuffer->ReAllocL(iResponseBuffer->Length() + ptr.Length());
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iResponseBuffer->Des().Append(ptr);
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}
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// Release the body data
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dataSupplier->ReleaseData();
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break;
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}
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case THTTPEvent::EResponseComplete:
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iObserver.ResponseReceivedL(*iResponseBuffer);
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break;
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case THTTPEvent::ESucceeded:
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case THTTPEvent::EFailed:
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{
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aTransaction.Close();
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iTransactionActive = EFalse;
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break;
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}
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case THTTPEvent::ERedirectedPermanently:
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break;
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case THTTPEvent::ERedirectedTemporarily:
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break;
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default:
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{
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if (aEvent.iStatus < 0)
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{
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aTransaction.Close();
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iTransactionActive = EFalse;
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}
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break;
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}
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}
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}
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TInt CHttpClient::MHFRunError(TInt aError, RHTTPTransaction aTransaction, const THTTPEvent& /*aEvent*/)
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{
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if(!aError)
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{
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aTransaction.Close();
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iTransactionActive = EFalse;
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}
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return KErrNone;
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}
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TBool CHttpClient::GetNextDataPart(TPtrC8& /*aDataPart*/)
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{
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// Not implemented for now as assuming that chunked response won't be sent
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// by the server
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return ETrue;
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}
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void CHttpClient::ReleaseData()
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{
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// Not implemented for now as assuming that chunked response won't be sent
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// by the server
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}
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TInt CHttpClient::OverallDataSize()
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{
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// Not implemented for now as assuming that chunked response won't be sent
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// by the server
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return 0;
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}
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TInt CHttpClient::Reset()
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{
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// Not implemented for now as assuming that chunked response won't be sent
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// by the server
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return KErrNone;
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}
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