portaddr.cpp
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上传日期:2013-07-19
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: portaddr.cpp,v 1.8.20.3 2004/07/09 01:48:16 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 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 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (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.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * 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 "hxcom.h"
- #if defined (_UNIX) || defined (_WIN16)
- #include <stdlib.h>
- #endif
- #include "hxcomm.h"
- #include "hxslist.h"
- #include "hxstring.h"
- #include "hxstrutl.h"
- #include "hxbuffer.h"
- #include "hxprefs.h"
- #include "netbyte.h"
- #include "portaddr.h"
- #include "hxheap.h"
- #ifdef _DEBUG
- #undef HX_THIS_FILE
- static const char HX_THIS_FILE[] = __FILE__;
- #endif
- HX_RESULT
- ReadUDPPorts(IHXBuffer* pBuffer, REF(CHXSimpleList*) pUDPPortList)
- {
- HX_RESULT hr = HXR_OK;
- int i = 0;
- UINT16 iPort = 0;
- BOOL bNewEntry = TRUE;
- char* pUDPPorts = NULL;
- char* pToken = NULL;
- UDP_PORTS* pEntry = NULL;
- UDP_PORTS* pUDPPort = NULL;
- CHXString szToken;
- if (!pBuffer || !pUDPPortList)
- {
- hr = HXR_FAILED;
- goto cleanup;
- }
- pUDPPorts = (char*)pBuffer->GetBuffer();
- pToken = strtok(pUDPPorts, ",");
- while (pToken)
- {
- bNewEntry = TRUE;
- szToken = pToken;
- pEntry = new UDP_PORTS;
- // trim off the spaces
- szToken.TrimLeft();
- szToken.TrimRight();
- i = szToken.Find('-');
- if (-1 == i)
- {
- // single port
- iPort = atoi(szToken);
- CHXSimpleList::Iterator lIterator = pUDPPortList->Begin();
- for (; lIterator != pUDPPortList->End(); ++lIterator)
- {
- pUDPPort = (UDP_PORTS*) (*lIterator);
- if (pUDPPort->uFrom == iPort + 1)
- {
- pUDPPort->uFrom = iPort;
- bNewEntry = FALSE;
- }
- else if (pUDPPort->uTo + 1 == iPort)
- {
- pUDPPort->uTo = iPort;
- bNewEntry = FALSE;
- }
- }
- if (bNewEntry)
- {
- pEntry->uFrom = atoi(szToken);
- pEntry->uTo = atoi(szToken);
- pUDPPortList->AddTail((void*)pEntry);
- }
- else
- {
- HX_DELETE(pEntry);
- }
- }
- // the entry is a range
- else
- {
- CHXString szFrom = szToken.Left(i);
- CHXString szTo = szToken.Right(szToken.GetLength() - (i + 1));
- szFrom.TrimRight();
- szTo.TrimLeft();
- pEntry->uFrom = atoi(szFrom);
- pEntry->uTo = atoi(szTo);
- pUDPPortList->AddTail((void*)pEntry);
- }
- pToken = strtok(NULL, ",");
- }
- cleanup:
- return hr;
- }
- HX_RESULT
- ReadListEntries(IHXBuffer* pValue, REF(CHXSimpleList*) pEntryList)
- {
- HX_RESULT hr = HXR_OK;
- char* pszValue = NULL;
- char* pszToken = NULL;
- CHXString* pToken = NULL;
- CommonEntry* pEntry = NULL;
- if (!pValue)
- {
- hr = HXR_FAILED;
- goto cleanup;
- }
- // collect the # of entries with/without wildcard
- pszValue = new char[pValue->GetSize() + 1];
- SafeStrCpy(pszValue, (char*)pValue->GetBuffer(), pValue->GetSize());
- pszToken = strtok(pszValue, ",n");
- while (pszToken)
- {
- pToken = new CHXString(pszToken);
- // trim off the spaces
- pToken->TrimLeft();
- pToken->TrimRight();
- if (IsValidSubnetEntry(*pToken))
- {
- pEntry = new SubnetEntry(*pToken);
- }
- else if (IsValidWildcardEntry(*pToken))
- {
- pEntry = new WideCardEntry(*pToken);
- }
- else
- {
- pEntry = new NonWideCardEntry(*pToken);
- }
- if (!pEntryList)
- {
- pEntryList = new CHXSimpleList();
- }
- pEntryList->AddTail(pEntry);
- HX_DELETE(pToken);
- pszToken = strtok(NULL, ",n");
- }
- cleanup:
- HX_VECTOR_DELETE(pszValue);
-
- return hr;
- }
- BOOL
- IsValidWildcardEntry(const char* pszValue)
- {
- BOOL bResult = FALSE;
- CHXString string = pszValue;
- // there are only 3 cases
- // *.XXX
- // XXX.*
- // XXX.*.XXX
- if (!string.Left(2).Compare("*.") ||
- !string.Right(2).Compare(".*") ||
- string.Find(".*.") != -1)
- {
- if (string.Find('*') == string.ReverseFind('*'))
- {
- bResult = TRUE;
- }
- }
- return bResult;
- }
- BOOL
- IsValidSubnetEntry(const char* pszValue)
- {
- BOOL bResult = FALSE;
- CHXString inString = pszValue;
- CHXString outString;
- // XXX.XXX.XXX.XXX:XXX.XXX.XXX.XXX
- if (2 == inString.CountFields(':'))
- {
- outString = inString.NthField(':', 1);
- if (4 != outString.CountFields('.'))
- {
- goto cleanup;
- }
- outString = inString.NthField(':', 2);
- if (4 != outString.CountFields('.'))
- {
- goto cleanup;
- }
- bResult = TRUE;
- }
- cleanup:
- return bResult;
- }
- CommonEntry::CommonEntry(const char* pszValue)
- {
- UINT8 size = 0;
- if (pszValue)
- {
- size = strlen(pszValue) + 1;
-
- m_pszValue = new char[size];
- memset(m_pszValue, 0, size);
- strcpy(m_pszValue, pszValue); /* Flawfinder: ignore */
- }
- m_nChunks = 0;
- m_pChunks = 0;
- }
- CommonEntry::~CommonEntry()
- {
- int i = 0;
- for (i = 0; i < m_nChunks; i++)
- {
- HX_VECTOR_DELETE(m_pChunks[i]);
- }
- HX_VECTOR_DELETE(m_pChunks);
- HX_VECTOR_DELETE(m_pszValue);
- }
- NonWideCardEntry::NonWideCardEntry(const char* pszValue)
- : CommonEntry(pszValue)
- {
- }
- BOOL
- NonWideCardEntry::IsEqual(const char* pszValue)
- {
- BOOL bResult = FALSE;
- if (!m_pszValue || !pszValue)
- {
- goto cleanup;
- }
- if (0 == strcasecmp(m_pszValue, pszValue))
- {
- bResult = TRUE;
- }
- cleanup:
- return bResult;
- }
- WideCardEntry::WideCardEntry(const char* pszValue)
- : CommonEntry(pszValue)
- {
- char* pHead = NULL;
- char* pTail = NULL;
- UINT8 i = 0;
- UINT8 nLength = 0;
- CHXString string;
- if (pszValue)
- {
- // caculate the # of chunks
- pHead = pTail = (char*)pszValue;
- string = pszValue;
- m_pChunks = new char*[string.CountFields('.')];
- nLength = (UINT8)(string.GetLength());
- for (i = 0; i < nLength; i++)
- {
- if (*pTail == '.')
- {
- m_pChunks[m_nChunks] = new char[(pTail - pHead) + 1];
- strncpy(m_pChunks[m_nChunks], pHead, pTail - pHead); /* Flawfinder: ignore */
- m_pChunks[m_nChunks][pTail - pHead] = ' ';
- m_nChunks++;
-
- pHead = pTail + 1;
- }
- pTail++;
- }
- m_pChunks[m_nChunks] = new char[(pTail - pHead) + 1];
- strncpy(m_pChunks[m_nChunks], pHead, pTail - pHead); /* Flawfinder: ignore */
- m_pChunks[m_nChunks][pTail - pHead] = ' ';
- m_nChunks++;
- }
- }
- BOOL
- WideCardEntry::IsEqual(const char* pszValue)
- {
- BOOL bResult = FALSE;
- int i = 0;
- int j = 0;
- WideCardEntry* pTargetEntry = NULL;
- if (!m_pszValue || !pszValue)
- {
- goto cleanup;
- }
- pTargetEntry = new WideCardEntry(pszValue);
- if (pTargetEntry->m_nChunks == 1)
- {
- goto cleanup;
- }
- bResult = TRUE;
-
- // start from left to right till either hit '*' or done with pTargetInfo
- for (i = 0, j = 0; strcasecmp(m_pChunks[i], "*") != 0 && j < pTargetEntry->m_nChunks; i++, j++)
- {
- if (strcasecmp(m_pChunks[i], pTargetEntry->m_pChunks[j]) != 0)
- {
- bResult = FALSE;
- break;
- }
- }
- // start from right to left
- for (i = m_nChunks-1, j = pTargetEntry->m_nChunks-1;
- bResult && strcasecmp(m_pChunks[i], "*") != 0 && j >= 0; i--, j--)
- {
- if (strcasecmp(m_pChunks[i], pTargetEntry->m_pChunks[j]) != 0)
- {
- bResult = FALSE;
- break;
- }
- }
- cleanup:
- HX_DELETE(pTargetEntry);
- return bResult;
- }
- SubnetEntry::SubnetEntry(const char* pszValue)
- : CommonEntry(pszValue)
- {
- UINT8 size = 0;
- UINT32 ulIAddress = 0;
- char* pColumn = NULL;
- if (pszValue)
- {
- pColumn = (char*) strchr(pszValue, ':');
- *pColumn = ' ';
- pColumn++;
- ulIAddress = HXinet_addr(pszValue);
- m_ulSubnet = DwToHost(ulIAddress);
- ulIAddress = HXinet_addr(pColumn);
- m_ulSubnetMask = DwToHost(ulIAddress);
- }
- }
- BOOL
- SubnetEntry::IsEqual(const char* pszValue)
- {
- BOOL bResult = FALSE;
- UINT32 ulIAddress = 0;
- UINT32 ulHostAddress = 0;
-
- if(IsNumericAddr(pszValue, strlen(pszValue)))
- {
- ulIAddress = HXinet_addr(pszValue);
- ulHostAddress = DwToHost(ulIAddress);
- if (m_ulSubnet == (ulHostAddress & m_ulSubnetMask))
- {
- bResult = TRUE;
- }
- }
- return bResult;
- }
-
- HXSubnetManager::HXSubnetManager(IUnknown* pContext)
- : m_pContext(pContext)
- , m_pEntryList(NULL)
- , m_pPreferences(NULL)
- , m_pPrevSubnet(NULL)
- {
- if (m_pContext)
- {
- m_pContext->AddRef();
- m_pContext->QueryInterface(IID_IHXPreferences, (void**)&m_pPreferences);
- Initialize();
- }
- }
- HXSubnetManager::~HXSubnetManager()
- {
- Close();
- }
- void
- HXSubnetManager::Initialize(void)
- {
- IHXBuffer* pBuffer = NULL;
- if (m_pPreferences && m_pPreferences->ReadPref("SubnetList", pBuffer) == HXR_OK)
- {
- if (!m_pPrevSubnet ||
- strcasecmp((const char*)m_pPrevSubnet->GetBuffer(), (const char*)pBuffer->GetBuffer()))
- {
- ResetEntryList();
- ReadListEntries(pBuffer, m_pEntryList);
- HX_RELEASE(m_pPrevSubnet);
- m_pPrevSubnet = pBuffer;
- m_pPrevSubnet->AddRef();
- }
- }
- HX_RELEASE(pBuffer);
- }
- BOOL
- HXSubnetManager::IsSubnet(const char* pszDomain)
- {
- BOOL bResult = FALSE;
- CommonEntry* pEntry = NULL;
- CHXSimpleList::Iterator lIterator;
- if (m_pEntryList)
- {
- lIterator = m_pEntryList->Begin();
- for (; lIterator != m_pEntryList->End(); ++lIterator)
- {
- pEntry = (CommonEntry*)(*lIterator);
- if (pEntry->IsEqual(pszDomain))
- {
- bResult = TRUE;
- break;
- }
- }
- }
- return bResult;
- }
- void
- HXSubnetManager::Close(void)
- {
- ResetEntryList();
- HX_DELETE(m_pEntryList);
- HX_RELEASE(m_pPrevSubnet);
- HX_RELEASE(m_pPreferences);
- HX_RELEASE(m_pContext);
- }
- void
- HXSubnetManager::ResetEntryList(void)
- {
- while (m_pEntryList && m_pEntryList->GetCount() > 0)
- {
- CommonEntry* pEntry = (CommonEntry*)m_pEntryList->RemoveHead();
- HX_DELETE(pEntry);
- }
- }
- #if defined(HELIX_FEATURE_PROXYMGR)
- HXProxyManager::HXProxyManager(void)
- : m_lRefCount(0)
- , m_pContext(NULL)
- , m_pPreferences(NULL)
- , m_pEntryList(NULL)
- , m_pPrevNoProxyFor(NULL)
- {
- }
- HXProxyManager::~HXProxyManager()
- {
- Close();
- }
- STDMETHODIMP
- HXProxyManager::QueryInterface(REFIID riid, void**ppvObj)
- {
- QInterfaceList qiList[] =
- {
- { GET_IIDHANDLE(IID_IUnknown), this },
- { GET_IIDHANDLE(IID_IHXProxyManager), (IHXProxyManager*) this },
- };
- return QIFind(qiList, QILISTSIZE(qiList), riid, ppvObj);
- }
- /////////////////////////////////////////////////////////////////////////
- // Method:
- // IUnknown::AddRef
- // Purpose:
- // Everyone usually implements this the same... feel free to use
- // this implementation.
- //
- STDMETHODIMP_(ULONG32)
- HXProxyManager::AddRef()
- {
- return InterlockedIncrement(&m_lRefCount);
- }
- /////////////////////////////////////////////////////////////////////////
- // Method:
- // IUnknown::Release
- // Purpose:
- // Everyone usually implements this the same... feel free to use
- // this implementation.
- //
- STDMETHODIMP_(ULONG32)
- HXProxyManager::Release()
- {
- if (InterlockedDecrement(&m_lRefCount) > 0)
- {
- return m_lRefCount;
- }
- delete this;
- return 0;
- }
- STDMETHODIMP
- HXProxyManager::Initialize(IUnknown* pContext)
- {
- HX_RESULT hr = HXR_OK;
- IHXBuffer* pBuffer = NULL;
- if (!m_pPreferences)
- {
- HX_RELEASE(m_pContext);
- m_pContext = pContext;
- if (!m_pContext)
- {
- hr = HXR_FAILED;
- goto cleanup;
- }
- m_pContext->AddRef();
- if (HXR_OK != m_pContext->QueryInterface(IID_IHXPreferences, (void**)&m_pPreferences))
- {
- m_pPreferences = NULL;
- }
- }
- if (m_pPreferences && m_pPreferences->ReadPref("NoProxyFor", pBuffer) == HXR_OK)
- {
- if (!m_pPrevNoProxyFor ||
- strcasecmp((const char*)m_pPrevNoProxyFor->GetBuffer(), (const char*)pBuffer->GetBuffer()))
- {
- ResetEntryList();
- ReadListEntries(pBuffer, m_pEntryList);
- HX_RELEASE(m_pPrevNoProxyFor);
- m_pPrevNoProxyFor = pBuffer;
- m_pPrevNoProxyFor->AddRef();
- }
- }
- HX_RELEASE(pBuffer);
- cleanup:
- return hr;
- }
- STDMETHODIMP_(BOOL)
- HXProxyManager::IsExemptionHost(char* pszDomain)
- {
- BOOL bResult = FALSE;
- CommonEntry* pEntry = NULL;
- CHXSimpleList::Iterator lIterator;
- if (m_pEntryList)
- {
- lIterator = m_pEntryList->Begin();
- for (; lIterator != m_pEntryList->End(); ++lIterator)
- {
- pEntry = (CommonEntry*)(*lIterator);
- if (pEntry->IsEqual(pszDomain))
- {
- bResult = TRUE;
- break;
- }
- }
- }
- return bResult;
- }
- void
- HXProxyManager::Close()
- {
- ResetEntryList();
- HX_DELETE(m_pEntryList);
- HX_RELEASE(m_pPrevNoProxyFor);
- HX_RELEASE(m_pPreferences);
- HX_RELEASE(m_pContext);
- }
- void
- HXProxyManager::ResetEntryList(void)
- {
- while (m_pEntryList && m_pEntryList->GetCount() > 0)
- {
- CommonEntry* pEntry = (CommonEntry*)m_pEntryList->RemoveHead();
- HX_DELETE(pEntry);
- }
- }
- #endif /* HELIX_FEATURE_PROXYMGR */