GME
13
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00001 /* 00002 * Licensed to the Apache Software Foundation (ASF) under one or more 00003 * contributor license agreements. See the NOTICE file distributed with 00004 * this work for additional information regarding copyright ownership. 00005 * The ASF licenses this file to You under the Apache License, Version 2.0 00006 * (the "License"); you may not use this file except in compliance with 00007 * the License. You may obtain a copy of the License at 00008 * 00009 * http://www.apache.org/licenses/LICENSE-2.0 00010 * 00011 * Unless required by applicable law or agreed to in writing, software 00012 * distributed under the License is distributed on an "AS IS" BASIS, 00013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00014 * See the License for the specific language governing permissions and 00015 * limitations under the License. 00016 */ 00017 00018 /* 00019 * $Id: XIncludeLocation.cpp 932949 2010-04-11 17:40:33Z borisk $ 00020 */ 00021 00022 00023 // --------------------------------------------------------------------------- 00024 // Includes 00025 // --------------------------------------------------------------------------- 00026 #include <xercesc/xinclude/XIncludeLocation.hpp> 00027 #include <xercesc/dom/DOM.hpp> 00028 #include <xercesc/util/XMLUniDefs.hpp> 00029 00030 XERCES_CPP_NAMESPACE_BEGIN 00031 00032 const XMLCh *allocate(const XMLCh *href){ 00033 XMLCh *allocated; 00034 XMLSize_t length = XMLString::stringLen(href); 00035 allocated = (XMLCh*)XMLPlatformUtils::fgMemoryManager->allocate((length+1) * sizeof(XMLCh)); 00036 XMLString::copyString(allocated, href); 00037 XMLPlatformUtils::removeDotDotSlash(allocated); 00038 00039 return allocated; 00040 } 00041 00042 void deallocate(void *ptr){ 00043 if (ptr) 00044 XMLPlatformUtils::fgMemoryManager->deallocate((void *)ptr); 00045 } 00046 00047 // --------------------------------------------------------------------------- 00048 // Destructor and Constructor 00049 // --------------------------------------------------------------------------- 00050 XIncludeLocation::XIncludeLocation(const XMLCh *href){ 00051 fHref = allocate(href); 00052 } 00053 00054 XIncludeLocation::~XIncludeLocation(){ 00055 deallocate((void *)fHref); 00056 } 00057 00058 const XMLCh * 00059 XIncludeLocation::prependPath(const XMLCh *baseToAdd){ 00060 XMLCh *relativeHref = NULL; 00061 if (fHref == NULL){ 00062 return NULL; 00063 } 00064 00065 if (baseToAdd == NULL){ 00066 return fHref; 00067 } 00068 00069 XMLPlatformUtils::removeDotDotSlash((XMLCh*)baseToAdd); 00070 XMLSize_t baseLength = XMLString::stringLen(baseToAdd); 00071 00072 int lastSlash = XMLString::lastIndexOf(baseToAdd, chForwardSlash); 00073 if (lastSlash == -1){ 00074 /* not found, try another platform */ 00075 lastSlash = XMLString::lastIndexOf(baseToAdd, chBackSlash); 00076 } 00077 00078 // Skip the scheme (e.g., file://) if fHref has one. Ideally we 00079 // should detect also if the URI is absolute. 00080 // 00081 const XMLCh* hrefPath = findEndOfProtocol (fHref); 00082 XMLSize_t hrefPathLength = XMLString::stringLen(hrefPath); 00083 00084 relativeHref = (XMLCh *)XMLPlatformUtils::fgMemoryManager->allocate((hrefPathLength + baseLength + 2) * sizeof(XMLCh)); 00085 if (relativeHref == NULL){ 00086 return NULL; 00087 } 00088 XMLString::copyNString(relativeHref, baseToAdd, lastSlash + 1); 00089 relativeHref[lastSlash + 1] = chNull; 00090 XMLString::catString(relativeHref, hrefPath); 00091 00092 /* free the old reference */ 00093 deallocate((void *)fHref); 00094 00095 fHref = relativeHref; 00096 return fHref; 00097 } 00098 00099 const XMLCh * 00100 XIncludeLocation::findEndOfProtocol(const XMLCh *URI){ 00101 if ( URI[0] == chLatin_f && 00102 URI[1] == chLatin_i && 00103 URI[2] == chLatin_l && 00104 URI[3] == chLatin_e && 00105 URI[4] == chColon && 00106 URI[5] == chForwardSlash && 00107 URI[6] == chForwardSlash && 00108 URI[7] == chForwardSlash ) 00109 { 00110 return URI + 8; 00111 } 00112 00113 if ( URI[0] == chLatin_f && 00114 URI[1] == chLatin_t && 00115 URI[2] == chLatin_p && 00116 URI[3] == chColon && 00117 URI[4] == chForwardSlash && 00118 URI[5] == chForwardSlash && 00119 URI[6] == chForwardSlash ) 00120 { 00121 return URI + 7; 00122 } 00123 00124 if ( URI[0] == chLatin_h && 00125 URI[1] == chLatin_t && 00126 URI[2] == chLatin_t && 00127 URI[3] == chLatin_p && 00128 URI[4] == chColon && 00129 URI[5] == chForwardSlash && 00130 URI[6] == chForwardSlash && 00131 URI[7] == chForwardSlash ) 00132 { 00133 return URI + 8; 00134 } 00135 00136 /* if method fails, simply return the URI and let the problem be detected 00137 * and reported down the line (it may not have a protocol of course) */ 00138 return URI; 00139 } 00140 00141 XERCES_CPP_NAMESPACE_END