1 /*

     2 * Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  

    15 *

    16 */

    17 

    18 

    19 #include "CReferrerHelper.h"

    20 #include "urlloader_urlloaderint.h"

    21 #include "nwx_http_defs.h"	// For NW_URL_METHOD_GET

    22 #include "nwx_settings.h"

    23 

    24 // -----------------------------------------------------------------------------

    25 // SetReferrerHeader

    26 // Set Referrer Header

    27 // -----------------------------------------------------------------------------

    28 //

    29 void SetReferrerHeader(NW_HED_UrlRequest_t* urlRequest,

    30 					   NW_Ucs2* referrerUrl)

    31 {

    32 	TUrlLoaderScheme urlScheme;

    33 	NW_Text_Length_t urlLength;

    34 	NW_Uint8 urlFreeNeeded = NW_FALSE;

    35 	NW_Ucs2* requestUrl;

    36 

    37 	// Get scheme of request url for later use 

    38 	requestUrl = (NW_Ucs2*) NW_Text_GetUCS2Buffer (urlRequest->url, 

    39 								NW_Text_Flags_NullTerminated | NW_Text_Flags_Aligned,

    40 								&urlLength, &urlFreeNeeded);

    41 

    42 	urlScheme = UrlLoader_FindUrlScheme(requestUrl);

    43     if (urlFreeNeeded) 

    44 	{

    45 		NW_Mem_Free(requestUrl);

    46 	}

    47 

    48 	// Make sure Schema is valid before going forward

    49 	if (urlScheme == ESchemeInvalid)

    50 	{	

    51 		return;

    52 	}

    53 

    54 	// Don't pass referrer header if it is not get requests 

    55 	if (NW_HED_UrlRequest_GetMethod (urlRequest) == NW_URL_METHOD_GET) 

    56 	{	// If yes, then create referrer header

    57 		TUrlLoaderScheme referrerUrlScheme = UrlLoader_FindUrlScheme(referrerUrl);

    58 

    59 		if ( referrerUrlScheme != ESchemeInvalid &&

    60 				 !(referrerUrlScheme == ESchemeHttps && urlScheme == ESchemeHttp) )

    61 		{	// No referrer header sent from https to http, othercase send referrer header

    62 			// First check if referrerUrl has fragment in it or not, if so, remove it

    63 

    64   		    NW_Uint32 referrerUrlLength = NW_Str_Strlen(referrerUrl);

    65 			NW_Ucs2* newReferrerUrl = NW_Str_New(referrerUrlLength + 1); 

    66 			if(newReferrerUrl != NULL) 

    67 			{	// Not out of memory, referrer header will be created

    68 				NW_Uint32 i = 0;

    69 				while ( i < referrerUrlLength && referrerUrl[i] != '#')

    70 				{

    71 					newReferrerUrl[i] = referrerUrl[i];

    72 					i++;

    73 				}					

    74 						

    75 				// Terminate the string

    76 				newReferrerUrl[i] = '\0';

    77 

    78 				HttpRequestHeaders* referHeader = (HttpRequestHeaders*)UrlLoader_HeadersNew(NULL,

    79 															   NULL,

    80 															   newReferrerUrl,

    81 															   NULL,

    82 															   0,

    83                                                                NULL);

    84 				urlRequest->header = referHeader;

    85 				// Free newReferrerUrl

    86 				NW_Str_Delete(newReferrerUrl);

    87 				newReferrerUrl = NULL;

    88 			}

    89 			// else: Out of memory, no referrer header sent

    90 		}

    91 	} 

    92 }