sippeangelo
139 lines
5.3 KiB
C++
139 lines
5.3 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// ---------------------------------------------------------------------------
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// Includes
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// ---------------------------------------------------------------------------
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#include <xercesc/util/HexBin.hpp>
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#include <xercesc/util/XMLUniDefs.hpp>
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#include <xercesc/util/XMLString.hpp>
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#include <xercesc/util/Janitor.hpp>
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XERCES_CPP_NAMESPACE_BEGIN
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// ---------------------------------------------------------------------------
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// constants
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// ---------------------------------------------------------------------------
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static const int BASELENGTH = 255;
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// ---------------------------------------------------------------------------
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// class data member
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// ---------------------------------------------------------------------------
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const XMLByte HexBin::hexNumberTable[BASELENGTH] =
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{
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
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};
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int HexBin::getDataLength(const XMLCh* const hexData)
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{
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if (!isArrayByteHex(hexData))
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return -1;
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return (int)XMLString::stringLen(hexData)/2;
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}
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bool HexBin::isArrayByteHex(const XMLCh* const hexData)
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{
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if (( hexData == 0 ) || ( *hexData == 0 )) // zero length
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return true;
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XMLSize_t strLen = XMLString::stringLen(hexData);
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if ( strLen%2 != 0 )
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return false;
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for ( XMLSize_t i = 0; i < strLen; i++ )
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if( !isHex(hexData[i]) )
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return false;
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return true;
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}
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XMLCh* HexBin::getCanonicalRepresentation(const XMLCh* const hexData
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, MemoryManager* const manager)
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{
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if (getDataLength(hexData) == -1)
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return 0;
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XMLCh* retStr = XMLString::replicate(hexData, manager);
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XMLString::upperCaseASCII(retStr);
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return retStr;
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}
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XMLByte* HexBin::decodeToXMLByte(const XMLCh* const hexData
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, MemoryManager* const manager)
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{
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if (( hexData == 0 ) || ( *hexData == 0 )) // zero length
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return 0;
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XMLSize_t strLen = XMLString::stringLen(hexData);
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if ( strLen%2 != 0 )
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return 0;
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//prepare the return string
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int decodeLength = (int)strLen/2;
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XMLByte *retVal = (XMLByte*) manager->allocate( (decodeLength + 1) * sizeof(XMLByte));
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ArrayJanitor<XMLByte> janFill(retVal, manager);
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XMLByte temp1, temp2;
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for( int i = 0; i<decodeLength; i++ ) {
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temp1 = hexNumberTable[hexData[i*2]];
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if (temp1 == (XMLByte) -1)
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return 0;
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temp2 = hexNumberTable[hexData[i*2+1]];
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if (temp2 == (XMLByte) -1)
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return 0;
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retVal[i] = ((temp1 << 4) | temp2);
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}
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janFill.release();
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retVal[decodeLength] = 0;
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return retVal;
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}
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// -----------------------------------------------------------------------
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// Helper methods
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// -----------------------------------------------------------------------
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bool HexBin::isHex(const XMLCh& octet)
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{
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// sanity check to avoid out-of-bound index
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if ( octet >= BASELENGTH )
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return false;
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return (hexNumberTable[octet] != (XMLByte) -1);
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}
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XERCES_CPP_NAMESPACE_END
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