pyldparse.cpp
上传用户:zhongxx05
上传日期:2007-06-06
资源大小:33641k
文件大小:6k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "pyldparse.h"
- #include "char_stack.h"
- #include <stdlib.h>
- #include <string.h>
- CPayloadParamParser::CPayloadParamParser() :
- m_pCCF(0),
- m_pValues(0)
- {}
- CPayloadParamParser::~CPayloadParamParser()
- {
- HX_RELEASE(m_pCCF);
- HX_RELEASE(m_pValues);
- }
- HX_RESULT CPayloadParamParser::Init(IHXCommonClassFactory* pCCF)
- {
- HX_RESULT res = HXR_FAILED;
-
- if (pCCF)
- res = pCCF->QueryInterface(IID_IHXCommonClassFactory,
- (void**)&m_pCCF);
- return res;
- }
- HX_RESULT CPayloadParamParser::Parse(const char* pParamString)
- {
- HX_RESULT res = HXR_FAILED;
- HX_RELEASE(m_pValues);
- if (m_pCCF &&
- SUCCEEDED(res = m_pCCF->CreateInstance(IID_IHXValues,
- (void**)&m_pValues)))
- {
- CharStack key;
- CharStack value;
-
- const char* pCur = pParamString;
-
- while(*pCur && SUCCEEDED(res))
- {
- // Get rid of leading whitespace
- for(;*pCur && *pCur == ' '; pCur++)
- ;
-
- // Get key
- key.Reset();
- while(*pCur && (*pCur != ' ') && (*pCur != '='))
- {
- *key = *pCur++;
- key++;
- }
-
- if (strlen(key.Finish()) &&
- (*pCur == '='))
- {
- // This is a key=value pair
- pCur++; // skip '='
-
- value.Reset();
-
- // Get value
- while(*pCur && (*pCur != ' ') && (*pCur != ';'))
- {
- *value = *pCur++;
- value++;
- }
-
- if (strlen(value.Finish()))
- {
- if (*pCur)
- pCur++; // skip ' ' or ';'
-
- res = AddParameter(key.Finish(), value.Finish());
- }
- else
- {
- // We got an empty value
- res = HXR_UNEXPECTED;
- }
- }
- else
- {
- // We got an empty or invalid key
- res = HXR_UNEXPECTED;
- }
- }
-
- if (!SUCCEEDED(res))
- HX_RELEASE(m_pValues);
- }
- return res;
- }
- HX_RESULT CPayloadParamParser::AddParameter(const char* pKey,
- const char* pValue)
- {
- HX_RESULT res = HXR_FAILED;
- IHXBuffer* pBuf = 0;
- if (m_pCCF &&
- SUCCEEDED(res = m_pCCF->CreateInstance(IID_IHXBuffer,
- (void**)&pBuf))&&
- SUCCEEDED(res = pBuf->SetSize(strlen(pValue) + 1)))
- {
- strcpy((char*)pBuf->GetBuffer(), pValue); /* Flawfinder: ignore */
- m_pValues->SetPropertyCString(pKey, pBuf);
- }
- HX_RELEASE(pBuf);
- return res;
- }
- HX_RESULT CPayloadParamParser::GetULONG32(const char* pKey,
- REF(ULONG32) ulValue)
- {
- HX_RESULT res = HXR_FAILED;
- IHXBuffer* pBuf = 0;
- if (m_pValues &&
- SUCCEEDED(m_pValues->GetPropertyCString(pKey, pBuf)))
- {
- const char* pValue = (const char*)pBuf->GetBuffer();
- char* pEnd = 0;
- ULONG32 ulTmp = strtoul(pValue, &pEnd, 10);
- if (*pValue && pEnd && !*pEnd)
- {
- ulValue = ulTmp;
- res = HXR_OK;
- }
- }
- HX_RELEASE(pBuf);
- return res;
- }
- static HX_RESULT FromHex(char ch, UINT8& val)
- {
- HX_RESULT res = HXR_OK;
- if ((ch >= '0') && (ch <= '9'))
- val += ch - '0';
- else if ((ch >= 'a') && (ch <= 'f'))
- val += 10 + ch - 'a';
- else if ((ch >= 'A') && (ch <= 'F'))
- val += 10 + ch - 'A';
- else
- res = HXR_FAILED;
- return res;
- }
- HX_RESULT CPayloadParamParser::GetBuffer(const char* pKey,
- REF(IHXBuffer*) pValue)
- {
- HX_RESULT res = HXR_FAILED;
-
- IHXBuffer* pBuf = 0;
- if (m_pCCF && m_pValues &&
- SUCCEEDED(m_pValues->GetPropertyCString(pKey, pBuf)))
- {
- const char* pStr = (const char*)pBuf->GetBuffer();
- ULONG32 ulStringSize = strlen(pStr);
- ULONG32 ulBufferSize = ulStringSize / 2;
- // make sure the string length is even
- if (!(ulStringSize & 0x1))
- {
- res = m_pCCF->CreateInstance(IID_IHXBuffer, (void**)&pValue);
- if (SUCCEEDED(res) &&
- SUCCEEDED(res = pValue->SetSize(ulBufferSize)))
- {
- UINT8* pDest = pValue->GetBuffer();
-
- while(SUCCEEDED(res) && *pStr)
- {
- UINT8 val = 0;
-
- res = FromHex(*pStr++, val);
-
- if (SUCCEEDED(res))
- {
- val <<= 4;
- res = FromHex(*pStr++, val);
-
- if (SUCCEEDED(res))
- *pDest++ = val;
- }
- }
- }
- if (!SUCCEEDED(res))
- HX_RELEASE(pValue);
- }
- }
- HX_RELEASE(pBuf);
-
- return res;
- }
- HX_RESULT CPayloadParamParser::GetString(const char* pKey,
- REF(IHXBuffer*) pValue)
- {
- HX_RESULT res = HXR_FAILED;
-
- IHXBuffer* pBuf = 0;
- if (m_pValues &&
- SUCCEEDED(m_pValues->GetPropertyCString(pKey, pBuf)))
- {
- pValue = pBuf;
- pValue->AddRef();
- }
-
- HX_RELEASE(pBuf);
- return res;
- }