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1 /* |
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2 * Copyright (c) 2002-2005 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 |
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21 #include "PolicyIntersecter.h" |
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22 |
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23 #include <XmlEngDdom.h> |
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24 #include "wssecuritypolicy.h" |
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25 #include "Wspolicy.h" |
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26 |
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27 |
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28 using namespace WSPolicy; |
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29 |
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30 CPolicyIntersecter* CPolicyIntersecter::NewL() |
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31 { |
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32 CPolicyIntersecter* pSelf = |
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33 CPolicyIntersecter::NewLC(); |
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34 CleanupStack::Pop(pSelf); |
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35 return pSelf; |
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36 } |
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37 CPolicyIntersecter* CPolicyIntersecter::NewLC() |
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38 { |
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39 CPolicyIntersecter* pSelf = new (ELeave) CPolicyIntersecter(); |
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40 CleanupStack::PushL(pSelf); |
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41 pSelf->ConstructL(); |
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42 return pSelf; |
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43 } |
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44 void CPolicyIntersecter::ConstructL() |
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45 { |
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46 iSecurityPolicyDomain = CWsSecurityPolicy::NewL(); |
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47 |
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48 } |
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49 CPolicyIntersecter::~CPolicyIntersecter() |
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50 { |
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51 iPolicy1.Close(); |
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52 iPolicy2.Close(); |
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53 |
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54 delete iSecurityPolicyDomain; |
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55 } |
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56 CPolicyIntersecter::CPolicyIntersecter() |
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57 { |
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58 |
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59 } |
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60 |
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61 TXmlEngElement CPolicyIntersecter::IntersectL(TDesC& /*aFirstPolicy*/, TDesC& /*aSecondPolicy*/) |
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62 { |
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63 // TDOMImplementation domImpl = XmlEngine::DOM::DOMImplementationSource::DOMImplementationL (XmlEngine::DOM::KImplementationID); |
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64 RXmlEngDOMImplementation domImpl; |
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65 RXmlEngDocument doc; |
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66 doc.OpenL(domImpl); |
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67 |
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68 // RDOMParser parser = domImpl.CreateDOMParser(); |
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69 |
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70 // iPolicy1 = parser.ParseFileL( aFirstPolicy ); |
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71 // iPolicy2 = parser.ParseFileL( aSecondPolicy ); |
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72 |
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73 TXmlEngElement& pPolicy1 = iPolicy1.AsElement(); |
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74 TXmlEngElement& pPolicy2 = iPolicy2.AsElement(); |
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75 |
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76 |
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77 TXmlEngElement result = IntersectL(pPolicy1,pPolicy2); |
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78 return result; |
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79 } |
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80 |
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81 |
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82 TXmlEngElement CPolicyIntersecter::IntersectL(TXmlEngElement aFirstPolicy, TXmlEngElement aSecondPolicy) |
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83 { |
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84 RXmlEngDocument policyDoc = aFirstPolicy.OwnerDocument().CloneDocumentL(); |
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85 TXmlEngElement& newIntersectedPolicy = policyDoc.AsElement(); |
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86 |
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87 RXmlEngNodeList<TXmlEngElement> listPolicynew; |
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88 newIntersectedPolicy.GetChildElements(listPolicynew); //get the children of policy |
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89 |
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90 if(listPolicynew.HasNext()) |
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91 { |
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92 iIntersectedPolicyElement = listPolicynew.Next(); |
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93 iIntersectedPolicyElement.RemoveChildren(); |
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94 } |
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95 |
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96 //now add all the intersecterd assertions in this AND Element |
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97 |
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98 RXmlEngNodeList<TXmlEngElement> listPolicyFirst; |
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99 aFirstPolicy.GetChildElements(listPolicyFirst); //get the children of policy |
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100 |
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101 RXmlEngNodeList<TXmlEngElement> listPolicySecond; |
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102 aSecondPolicy.GetChildElements(listPolicySecond); //get the children of policy |
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103 |
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104 TXmlEngElement XOR = iIntersectedPolicyElement.AddNewElementSameNsL(WSPolicy::KXorCompositeAssertion); |
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105 |
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106 if(listPolicyFirst.HasNext() && listPolicySecond.HasNext()) |
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107 { |
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108 TXmlEngElement policyElement = listPolicyFirst.Next(); |
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109 |
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110 TPtrC8 localName = policyElement.TagName(); |
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111 |
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112 RXmlEngNodeList<TXmlEngElement> xorList; //get the only xor element |
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113 policyElement.GetElementsByTagNameL(xorList, WSPolicy::KXorCompositeAssertion, WSPolicy::KWsPolicyNsUri); |
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114 TXmlEngElement pXORFirst = NULL; |
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115 |
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116 if(xorList.HasNext()) |
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117 pXORFirst = xorList.Next(); |
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118 //get all AND elements from the above xor. |
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119 |
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120 RXmlEngNodeList<TXmlEngElement> andListFirst; //get the only xor element from First Policy |
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121 pXORFirst.GetElementsByTagNameL(andListFirst, WSPolicy::KAndCompositeAssertion, WSPolicy::KWsPolicyNsUri); |
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122 |
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123 //second policy |
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124 TXmlEngElement policyElementSec = listPolicySecond.Next(); |
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125 |
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126 TPtrC8 localName2 = policyElementSec.TagName(); |
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127 |
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128 RXmlEngNodeList<TXmlEngElement> xorListSec; //get the only xor element |
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129 policyElementSec.GetElementsByTagNameL(xorListSec, WSPolicy::KXorCompositeAssertion, WSPolicy::KWsPolicyNsUri); |
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130 TXmlEngElement pXORSec = NULL; |
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131 |
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132 if(xorListSec.HasNext()) |
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133 pXORSec = xorListSec.Next(); |
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134 //we have to get all AND elements from the above xor. we will do it in loop |
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135 |
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136 |
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137 while (andListFirst.HasNext()) |
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138 { |
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139 TXmlEngElement AND = XOR.AddNewElementSameNsL(WSPolicy::KAndCompositeAssertion); |
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140 |
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141 TXmlEngElement andEleF = andListFirst.Next(); |
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142 |
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143 TPtrC8 localName = andEleF.TagName(); |
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144 //find all assertions in this AND element |
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145 |
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146 |
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147 IntersectCompareSecondAssertionsL(andEleF, pXORSec, AND); |
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148 } |
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149 |
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150 } |
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151 |
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152 |
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153 return XOR; |
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154 |
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155 } |
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156 |
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157 TXmlEngElement CPolicyIntersecter::IntersectCompareSecondAssertionsL(TXmlEngElement aFirstElement, TXmlEngElement aSecondElement, TXmlEngElement aIntersectedAND) |
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158 { |
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159 |
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160 RXmlEngNodeList<TXmlEngElement> assertionListF; //get all of first assrtions |
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161 aFirstElement.GetChildElements(assertionListF); |
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162 |
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163 RXmlEngNodeList<TXmlEngElement> andListSec; //get all of AND elements |
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164 aSecondElement.GetElementsByTagNameL(andListSec, WSPolicy::KAndCompositeAssertion, WSPolicy::KWsPolicyNsUri); |
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165 |
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166 RArray<TXmlEngElement> result; |
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167 while(andListSec.HasNext()) |
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168 { |
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169 //for every of AND element, loop for every AND element in first policy |
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170 TXmlEngElement andEleS = andListSec.Next(); |
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171 |
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172 TPtrC8 localNameS = andEleS.TagName(); |
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173 //find all assertions in this AND element |
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174 |
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175 RXmlEngNodeList<TXmlEngElement> assertionListS; //get the only xor element |
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176 andEleS.GetChildElements(assertionListS); |
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177 //RESOLVE all assertion from same AND element |
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178 |
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179 IntersectAllANDAssertionsL(aFirstElement, andEleS, result); |
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180 if(result.Count() > 0) |
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181 { |
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182 for (TInt i = 0; i<result.Count(); i++) |
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183 { |
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184 TXmlEngElement resultEle = result[i].CopyL(); |
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185 aIntersectedAND.AppendChildL(resultEle); |
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186 } |
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187 result.Reset(); |
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188 } |
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189 //if result then we have merged policy else we have NULL here |
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190 |
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191 } |
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192 return NULL; |
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193 } |
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194 void CPolicyIntersecter::IntersectAllANDAssertionsL(TXmlEngElement aFirstElement, TXmlEngElement aSecondElement, RArray<TXmlEngElement>& aResult) |
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195 { |
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196 TInt outcount = 0; |
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197 TInt inCount = 0; |
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198 |
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199 RXmlEngNodeList<TXmlEngElement> assertionListF; //get all of first assrtions |
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200 aFirstElement.GetChildElements(assertionListF); |
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201 |
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202 while (assertionListF.HasNext()) |
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203 { |
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204 TXmlEngElement assertionFirst = assertionListF.Next(); |
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205 |
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206 TPtrC8 localName1 = assertionFirst.TagName(); |
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207 |
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208 outcount++; |
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209 |
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210 RXmlEngNodeList<TXmlEngElement> assertionListS; //get all of AND elements |
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211 aSecondElement.GetChildElements(assertionListS); |
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212 |
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213 while(assertionListS.HasNext()) |
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214 { |
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215 TXmlEngElement assertionSecond = assertionListS.Next(); |
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216 |
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217 TPtrC8 localName2 = assertionSecond.TagName(); |
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218 inCount++; |
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219 if((localName1.Compare(localName2) == 0) && |
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220 VerifyNamespace(assertionFirst, assertionSecond)) |
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221 { |
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222 //call domain specific policy to resolve |
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223 //check the namespaces here to find which domain we need to process |
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224 //both namespaces should be checked and if they are same then we can intersect them |
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225 |
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226 TPtrC8 namespaceUri1 = assertionFirst.NamespaceUri(); |
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227 |
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228 //if its ws security policy |
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229 if(namespaceUri1.Compare(KWsSecurityPolicyNsUri) == 0) |
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230 { |
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231 /* |
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232 TXmlEngElement result = iSecurityPolicyDomain->Intersect(localName1, assertionFirst, assertionSecond); |
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233 if(result.NotNull()) |
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234 { |
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235 aResult.Append(assertionFirst); |
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236 aResult.Append(assertionSecond); |
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237 } |
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238 */ |
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239 } |
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240 } |
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241 } |
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242 |
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243 } |
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244 } |
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245 |
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246 TInt CPolicyIntersecter::VerifyNamespace(TXmlEngElement aFirstElement, TXmlEngElement aSecondElement) |
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247 { |
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248 |
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249 TPtrC8 namespaceUri1 = aFirstElement.NamespaceUri(); |
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250 TPtrC8 namespaceUri2 = aSecondElement.NamespaceUri(); |
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251 |
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252 if(namespaceUri1 != KNullDesC8() && namespaceUri2 != KNullDesC8()) |
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253 { |
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254 if(namespaceUri1.Compare(namespaceUri2) == 0) |
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255 return ETrue; |
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256 } |
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257 |
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258 return KErrNotFound; |
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259 } |