CSecureSocket example

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Code Example

Source file: Media:WikiSecureSocketEx.zip

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Article

Created: Carbider (29 Nov 2007)

Last edited: hamishwillee (20 Jul 2012)

Introduction and external links

The example is based on SSLExampleCode but is simplified and is put in operational status.

The example connection goes to http://www.mozilla.org/

Necessary libraries

To operate with CSecureSocket class we need to include this header files:

#include <in_sock.h>
#include <SecureSocket.h>

And to add this libraries to .mmp file:

LIBRARY insock.lib
LIBRARY securesocket.lib
LIBRARY esock.lib

Connection process

The connection is organized as Active Object. In ConnectL() method the RSocket socket is opened and connected:

void CSecureSocketCore::ConnectL()
    {
    _LIT( KIPAddress, " 63.245.209.11");
 
    TInetAddr addr;
    TUint32 aAddr;
 
    iState = EMakingSecureConnection;
 
    if ( addr.Input( KIPAddress ) == KErrNone )
    {
        // server name is already a valid ip address
    	aAddr =  addr.Address();
        iAddress.SetPort( iPort );
        iAddress.SetAddress( aAddr );
        iAddress.SetFamily( KAfInet );
 
        // Open a TCP socket
        User::LeaveIfError( iSocket.Open( iSocketServer,
            KAfInet,
            KSockStream,
            KProtocolInetTcp ) );
 
        // Initiate socket connection
        iSocket.Connect( iAddress, iStatus );
        SetActive();
    }
}

Then MakeSecureConnectionL() method accomplishes a handshake with the server:

void CSecureSocketCore::MakeSecureConnectionL()
{
    iTlsSocket = CSecureSocket::NewL( iSocket, _L("SSL3.0"));
 
    iTlsSocket->FlushSessionCache();
    // start the handshake 
    iTlsSocket->StartClientHandshake( iStatus );
}

The page request goes is as follows:

void CSecureSocketCore::MakePageRequestL()
{
    User::LeaveIfError(iStatus.Int());
    _LIT8( KPage   ,   "http://www.mozilla.org/");
    // Create a GET request
    iSndBuffer+=KSimpleGet;  // "GET "
    iSndBuffer+=KPage();
    iSndBuffer+=KNewLine;    // "\n"
 
    // Send the request
    iTlsSocket->Send( iSndBuffer, iStatus, iBytesSent );
}

Following two functions are retrieving the server response:

GetServerResponseL()
ReadServerResponseL()

Download the example source code

The example is available as Carbide C++ project. To know how to import project from Zip look here. Download Zip file from here: File:WikiSecureSocketEx.zip

The main implementation is in the SecureSocketCore.cpp file