1 /*

     2  * Copyright (C) 2007 Apple Inc.  All rights reserved.

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions

     6  * are met:

     7  * 1. Redistributions of source code must retain the above copyright

     8  *    notice, this list of conditions and the following disclaimer.

     9  * 2. Redistributions in binary form must reproduce the above copyright

    10  *    notice, this list of conditions and the following disclaimer in the

    11  *    documentation and/or other materials provided with the distribution.

    12  *

    13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

    14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

    17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

    21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

    24  */

    25 

    26 #include "config.h"

    27 #include "HTTPHeaderPropertyBag.h"

    28 

    29 #include "HTTPHeaderMap.h"

    30 

    31 #include <WebCore/BString.h>

    32 

    33 // HTTPHeaderPropertyBag -----------------------------------------------

    34 

    35 HTTPHeaderPropertyBag::HTTPHeaderPropertyBag(WebURLResponse* response)

    36     : m_refCount(1)

    37     , m_response(response)

    38 {

    39 }

    40 

    41 HTTPHeaderPropertyBag* HTTPHeaderPropertyBag::createInstance(WebURLResponse* response)

    42 {

    43     return new HTTPHeaderPropertyBag(response);

    44 }

    45 

    46 // IUnknown -------------------------------------------------------------------

    47 

    48 HRESULT STDMETHODCALLTYPE HTTPHeaderPropertyBag::QueryInterface(REFIID riid, void** ppvObject)

    49 {

    50     *ppvObject = 0;

    51     if (IsEqualGUID(riid, IID_IUnknown))

    52         *ppvObject = static_cast<IPropertyBag*>(this);

    53     else if (IsEqualGUID(riid, IID_IPropertyBag))

    54         *ppvObject = static_cast<IPropertyBag*>(this);

    55     else if (IsEqualGUID(riid, __uuidof(HTTPHeaderPropertyBag)))

    56         *ppvObject = this;

    57     else

    58         return E_NOINTERFACE;

    59 

    60     AddRef();

    61     return S_OK;

    62 }

    63 

    64 ULONG STDMETHODCALLTYPE HTTPHeaderPropertyBag::AddRef(void)

    65 {

    66     return ++m_refCount;

    67 }

    68 

    69 ULONG STDMETHODCALLTYPE HTTPHeaderPropertyBag::Release(void)

    70 {

    71     ULONG newRef = --m_refCount;

    72     if (!newRef)

    73         delete this;

    74 

    75     return newRef;

    76 }

    77 

    78 static inline WebCore::String ConvertFromLPCOLESTRToString(LPCOLESTR pszPropName)

    79 {

    80     return WebCore::String(pszPropName);

    81 }

    82 

    83 static bool ConvertFromStringToVariant(VARIANT* pVar, const WebCore::String& stringVal)

    84 {

    85     if (!pVar)

    86         return false;

    87 

    88     if (V_VT(pVar) == VT_BSTR) {

    89         V_BSTR(pVar) = WebCore::BString(stringVal);

    90         return true;

    91     }

    92 

    93     return false;

    94 }

    95 

    96 // IPropertyBag ------------------------------------------------------------

    97 

    98 HRESULT STDMETHODCALLTYPE HTTPHeaderPropertyBag::Read(LPCOLESTR pszPropName, VARIANT* pVar, IErrorLog* /*pErrorLog*/)

    99 {

   100     if (!pszPropName)

   101         return E_POINTER;

   102 

   103     if (!m_response)

   104         return E_FAIL;

   105 

   106     const WebCore::HTTPHeaderMap& headerMap = m_response->resourceResponse().httpHeaderFields();

   107     WebCore::String key = ConvertFromLPCOLESTRToString(pszPropName);

   108     WebCore::String value = headerMap.get(key);

   109 

   110     if (!ConvertFromStringToVariant(pVar, value))

   111         return E_INVALIDARG;

   112 

   113     return S_OK;

   114 }

   115 

   116 HRESULT STDMETHODCALLTYPE HTTPHeaderPropertyBag::Write(LPCOLESTR /*pszPropName*/, VARIANT* /*pVar*/)

   117 {

   118     // We cannot add to the Resource Response's header hash map

   119     return E_FAIL;

   120 }