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1 /* |
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2 * Copyright (c) 2000 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: Implementation of policymanagement components |
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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 // INCLUDES |
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20 |
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21 #include "PolicyParser.h" |
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22 #include "ElementBase.h" |
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23 #include "elements.h" |
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24 #include "DataTypes.h" |
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25 #include "debug.h" |
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26 #include "PolicyStorage.h" |
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27 #include "XACMLconstants.h" |
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28 #include "ErrorCodes.h" |
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29 |
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30 #include <f32file.h> |
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31 #include <e32base.h> |
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32 #include <s32file.h> |
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33 |
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34 // MACROS |
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35 // CONSTANTS |
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36 |
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37 _LIT8( KCDataStart, "<![CDATA["); |
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38 const TInt KCDataStartLength = 9; |
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39 const TInt KCDataEndLength = 3; |
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40 _LIT8( KCDataEnd, "]]>"); |
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41 |
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42 // DATA TYPES |
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43 // FUNCTION PROTOTYPES |
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44 |
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45 |
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46 namespace ParserUtility |
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47 { |
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48 // ----------------------------------------------------------------------------- |
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49 // ParserUtility::ContainsCDataField |
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50 // ----------------------------------------------------------------------------- |
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51 // |
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52 TBool ContainsCDataField( TPtrC8& aChunk) |
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53 { |
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54 //Find CData indicator |
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55 return 0 <= aChunk.Find( KCDataStart); |
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56 } |
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57 |
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58 // ----------------------------------------------------------------------------- |
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59 // ParserUtility::ReadCDataArea |
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60 // ----------------------------------------------------------------------------- |
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61 // |
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62 void ReadCDataAreaL( TPtrC8& aCDataArea, TPtrC8& aChunk, TPtrC8& aFinalPart) |
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63 { |
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64 //find cdata start index and calculate nested cdata fields |
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65 TPtrC8 temp = aFinalPart; |
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66 TInt tempIndex; |
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67 TInt cdatastart = KErrNotFound; |
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68 |
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69 TInt cdataCount = 0; |
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70 while ( KErrNotFound != (tempIndex = temp.Find( KCDataStart))) |
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71 { |
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72 if ( cdatastart == KErrNotFound) |
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73 { |
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74 //save cdata field start |
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75 cdatastart = tempIndex; |
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76 } |
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77 temp.Set( temp.Mid(tempIndex + KCDataStartLength)); |
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78 cdataCount++; |
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79 } |
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80 |
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81 User::LeaveIfError( cdatastart); |
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82 |
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83 //find end location for cdata field (dismiss nested CDATA end marks) |
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84 TInt cdataend = 0; |
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85 temp.Set( aFinalPart); |
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86 |
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87 while ( cdataCount-- ) |
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88 { |
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89 TInt current = temp.Find( KCDataEnd); |
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90 temp.Set( temp.Mid(current + KCDataEndLength )); |
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91 cdataend += current + KCDataEndLength; |
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92 } |
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93 |
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94 if ( cdataCount != -1 ) |
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95 { |
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96 User::Leave( KErrCorrupt); |
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97 } |
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98 |
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99 //set cdata area |
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100 aCDataArea.Set( aFinalPart.Mid( cdatastart)); |
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101 aCDataArea.Set( aCDataArea.Left( cdataend - cdatastart)); |
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102 |
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103 |
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104 //shrink cdata part from chunk and set aFinalPart to begin after cdata part |
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105 aChunk.Set( aChunk.Left( cdatastart)); |
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106 aFinalPart.Set( aFinalPart.Mid( cdataend)); |
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107 } |
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108 |
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109 // ----------------------------------------------------------------------------- |
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110 // ParserUtility::RemoveCDataMarks |
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111 // ----------------------------------------------------------------------------- |
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112 // |
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113 void RemoveCDataMarksL( TPtrC8& aData) |
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114 { |
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115 TInt index = aData.Find( KCDataStart); |
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116 |
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117 User::LeaveIfError( index ); |
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118 |
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119 aData.Set( aData.Mid( index + KCDataStartLength)); |
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120 |
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121 TInt validIndex = 0; |
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122 TInt tempIndex; |
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123 |
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124 TPtrC8 temp = aData; |
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125 |
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126 while ( KErrNotFound != ( tempIndex = temp.Find( KCDataEnd))) |
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127 { |
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128 validIndex += tempIndex + KCDataEndLength; |
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129 temp.Set( temp.Mid( tempIndex + KCDataEndLength )); |
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130 } |
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131 |
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132 User::LeaveIfError( index ); |
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133 |
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134 aData.Set( aData.Left( validIndex - KCDataEndLength)); |
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135 } |
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136 |
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137 TInt LineCounter( TPtrC8& aData) |
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138 { |
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139 TPtrC8 temp = aData; |
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140 TInt rowCount = 0; |
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141 TInt index; |
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142 |
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143 //ascii code 10 is line feed mark |
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144 while ( KErrNotFound != ( index = temp.Locate( 10))) |
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145 { |
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146 rowCount++; |
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147 temp.Set( temp.Mid( index + 1 )); |
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148 } |
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149 |
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150 return rowCount; |
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151 } |
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152 |
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153 } |
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154 |
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155 |
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156 // FORWARD DECLARATIONS |
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157 // CLASS DECLARATION |
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158 |
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159 |
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160 // ----------------------------------------------------------------------------- |
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161 // CPolicyParser::CPolicyParser |
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162 // ----------------------------------------------------------------------------- |
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163 // |
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164 CPolicyParser::CPolicyParser( CPolicyStorage * aStorage) |
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165 : iStorage( aStorage) |
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166 { |
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167 |
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168 } |
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169 |
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170 // ----------------------------------------------------------------------------- |
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171 // CPolicyParser::~CPolicyParser |
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172 // ----------------------------------------------------------------------------- |
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173 // |
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174 |
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175 CPolicyParser::~CPolicyParser() |
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176 { |
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177 delete iElementStack; |
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178 delete iParser; |
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179 } |
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180 |
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181 // ----------------------------------------------------------------------------- |
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182 // CPolicyParser::NewL |
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183 // ----------------------------------------------------------------------------- |
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184 // |
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185 |
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186 CPolicyParser* CPolicyParser::NewL( CPolicyStorage * aStorage) |
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187 { |
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188 //2nd phase constructor |
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189 CPolicyParser * self = new (ELeave) CPolicyParser( aStorage); |
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190 |
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191 CleanupStack::PushL( self); |
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192 self->ConstructL(); |
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193 CleanupStack::Pop( self); |
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194 |
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195 return self; |
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196 } |
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197 |
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198 // ----------------------------------------------------------------------------- |
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199 // CPolicyParser::ConstructL() |
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200 // ----------------------------------------------------------------------------- |
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201 // |
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202 |
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203 void CPolicyParser::ConstructL() |
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204 { |
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205 //2nd phase constructor |
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206 iElementStack = new (ELeave)CStack<CElementBase, EFalse>; |
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207 iParser = Xml::CParser::NewL( _L8( "text/xml"), *this ); |
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208 } |
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209 |
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210 // ----------------------------------------------------------------------------- |
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211 // CPolicyParser::ParseXACMLObjects() |
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212 // ----------------------------------------------------------------------------- |
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213 // |
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214 |
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215 CElementBase * CPolicyParser::ParseXACMLObjects( TInt& aError, const TDesC8 &aXACML, TDes8 &aReturnText) |
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216 { |
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217 //parsing for XACML objects |
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218 //Set parsing properties |
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219 iValidCharacterSet = EFalse; |
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220 iErrorHandling = ETrue; |
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221 iLanguage = EXACML; |
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222 |
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223 iElementStack->Reset(); |
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224 iStorage->ResetRealIdValidTest(); |
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225 |
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226 iActiveElement = NULL; |
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227 iReturnText = ParserErrors::ParsingOk; |
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228 |
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229 //actual parsing.... |
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230 TRAP( aError, ParseL( aXACML)); |
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231 |
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232 //In error case delete root element... |
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233 if ( aError != KErrNone ) |
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234 { |
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235 delete iRootElement; |
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236 iRootElement = NULL; |
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237 } |
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238 |
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239 iStorage->ResetRealIdValidTest(); |
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240 |
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241 aReturnText = iReturnText; |
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242 |
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243 |
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244 return iRootElement; |
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245 } |
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246 |
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247 // ----------------------------------------------------------------------------- |
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248 // CPolicyParser::ParseL() |
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249 // ----------------------------------------------------------------------------- |
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250 // |
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251 |
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252 void CPolicyParser::ParseL( const TDesC8 &aXACML) |
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253 { |
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254 //reset line counter and initialize XML-parser |
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255 iActiveLine = 0; |
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256 iParser->ParseBeginL(); |
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257 |
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258 //Max size of chunk (max text length, which go once to parser) |
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259 const TInt KMaxChunkLength = 1000; |
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260 |
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261 TPtrC8 xacmlDescription = aXACML; |
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262 TPtrC8 chunk; |
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263 TInt length = KMaxChunkLength < xacmlDescription.Length() ? KMaxChunkLength : xacmlDescription.Length(); |
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264 |
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265 do |
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266 { |
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267 //max text, which go to parser is one line or KMaxChunkLength. Counter tracks line, where parsing is going |
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268 iActiveLine++; |
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269 //Find line feed mark (asciicode 10) |
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270 TInt index = xacmlDescription.Locate(10); |
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271 |
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272 if ( index != KErrNotFound) |
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273 { |
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274 length = index + 1; |
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275 } |
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276 |
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277 //set chunk pointer |
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278 chunk.Set( xacmlDescription.Left(length)); |
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279 TPtrC8 cdata; |
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280 |
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281 if ( ParserUtility::ContainsCDataField( chunk)) |
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282 { |
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283 //cdata mark indicated in chunk, remove cdata area from chunk, |
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284 ParserUtility::ReadCDataAreaL( cdata, chunk, xacmlDescription); |
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285 |
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286 if ( iLanguage == EXACML) |
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287 { |
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288 iActiveLine += ParserUtility::LineCounter( cdata); |
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289 } |
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290 } |
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291 else |
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292 { |
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293 //set remaining XACML description to xacmlDescription |
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294 xacmlDescription.Set( xacmlDescription.Mid(length)); |
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295 } |
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296 |
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297 |
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298 //'|' and '~' are not allowed in policy system... |
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299 if ( iLanguage == EXACML && (chunk.Locate('|') != KErrNotFound || chunk.Locate('~') != KErrNotFound)) |
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300 { |
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301 HandleErrorL( ParserErrors::InvalidMark, ParserErrors::InvalidMarks); |
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302 } |
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303 |
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304 //drive description to parser |
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305 iParser->ParseL( chunk); |
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306 |
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307 //in cdata case call directly OnContent |
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308 if ( cdata.Length()) |
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309 { |
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310 TInt err = KErrNotFound; |
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311 OnContentL( cdata, err); |
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312 } |
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313 |
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314 length = KMaxChunkLength < xacmlDescription.Length() ? KMaxChunkLength : xacmlDescription.Length(); |
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315 } while ( length); |
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316 |
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317 //close parser |
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318 iParser->ParseEndL(); |
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319 } |
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320 |
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321 // ----------------------------------------------------------------------------- |
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322 // CPolicyParser::ParseL() |
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323 // ----------------------------------------------------------------------------- |
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324 // |
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325 |
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326 TInt CPolicyParser::ParseNativeObjects( CElementBase * aSeedElement, const TDesC8 &aNative, TBool aAddToEditableCache) |
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327 { |
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328 //parsing for native objects |
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329 //set parsing properties |
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330 iValidCharacterSet = ETrue; |
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331 iErrorHandling = EFalse; |
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332 iLanguage = ENative; |
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333 iElementStack->Reset(); |
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334 iAddToEditableCache = aAddToEditableCache; |
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335 |
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336 //seed element is given by function caller |
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337 iActiveElement = aSeedElement; |
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338 |
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339 //parsing |
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340 TRAPD( err, ParseL( aNative)); |
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341 |
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342 return err; |
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343 } |
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344 |
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345 // ----------------------------------------------------------------------------- |
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346 // CPolicyParser::SetLineOffset() |
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347 // ----------------------------------------------------------------------------- |
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348 // |
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349 |
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350 void CPolicyParser::SetLineOffset( TInt aLine) |
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351 { |
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352 iLineOffset = aLine; |
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353 } |
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354 |
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355 |
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356 // ----------------------------------------------------------------------------- |
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357 // CPolicyParser::HandleErrorL() |
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358 // ----------------------------------------------------------------------------- |
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359 // |
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360 void CPolicyParser::HandleErrorL( const TDesC8 &aText) |
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361 { |
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362 //if error handling is on.... |
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363 if ( iErrorHandling ) |
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364 { |
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365 //parse error text |
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366 iReturnText.Copy( _L8("(Line ")); |
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367 iReturnText.AppendNum( iActiveLine + iLineOffset); |
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368 iReturnText.Append( _L8(") ")); |
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369 iReturnText.Append( aText); |
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370 RDEBUG8_2("XACML parser error: %S", &iReturnText); |
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371 } |
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372 |
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373 User::Leave( KErrParser ); |
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374 } |
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375 |
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376 // ----------------------------------------------------------------------------- |
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377 // CPolicyParser::HandleErrorL() |
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378 // ----------------------------------------------------------------------------- |
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379 // |
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380 |
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381 void CPolicyParser::HandleErrorL( const TDesC8 &aText, const TDesC8 &aErrorElement) |
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382 { |
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383 //parse error text |
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384 |
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385 TBuf8<KMaxReturnMessageLength> returnText; |
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386 |
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387 const TInt KErrorMsgLength = 20; |
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388 |
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389 if ( (aText.Length() + aErrorElement.Length() + KErrorMsgLength) < KMaxReturnMessageLength) |
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390 { |
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391 returnText = aText; |
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392 returnText.Append(_L(": ")); |
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393 returnText.Append( aErrorElement); |
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394 } |
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395 |
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396 |
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397 HandleErrorL( returnText); |
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398 } |
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399 |
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400 // ----------------------------------------------------------------------------- |
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401 // CPolicyParser::HandleErrorL() |
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402 // ----------------------------------------------------------------------------- |
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403 // |
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404 |
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405 void CPolicyParser::HandleErrorL( const TAny * aPointer, const TDesC8 &aError, const TDesC8 &aErrorElement) |
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406 { |
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407 if ( aPointer != NULL) |
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408 { |
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409 HandleErrorL( aError, aErrorElement); |
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410 } |
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411 } |
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412 |
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413 // ----------------------------------------------------------------------------- |
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414 // CPolicyParser::HandleNativeErrorL() |
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415 // ----------------------------------------------------------------------------- |
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416 // |
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417 |
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418 void CPolicyParser::HandleNativeErrorL( TInt /*aError*/) |
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419 { |
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420 //When parsing native objects, error messages are not needed |
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421 User::Leave( KErrNativeParser); |
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422 } |
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423 |
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424 // ----------------------------------------------------------------------------- |
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425 // CPolicyParser::Language() |
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426 // ----------------------------------------------------------------------------- |
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427 // |
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428 |
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429 TLanguageSelector CPolicyParser::Language() |
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430 { |
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431 return iLanguage; |
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432 } |
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433 |
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434 // ----------------------------------------------------------------------------- |
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435 // CPolicyParser::CreateIdElementsL() |
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436 // ----------------------------------------------------------------------------- |
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437 // |
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438 |
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439 void CPolicyParser::CreateIdElementsL( const TDesC8& aIdString ) |
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440 { |
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441 #ifndef __POLICY_BASE_CREATOR_TOOL |
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442 |
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443 TPtrC8 ptr( aIdString); |
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444 TUint32 policySystemid(0); |
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445 TBool atLeastOneId = EFalse; |
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446 |
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447 //parse from id string ids, which belongs to current component. |
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448 while ( ptr[0] == '|') |
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449 { |
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450 //remove delimiter |
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451 ptr.Set( ptr.Mid(1)); |
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452 |
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453 //find second delimiter |
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454 TInt index = ptr.Locate('|'); |
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455 |
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456 TPtrC8 elementId( ptr); |
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457 |
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458 //if second delimiter found set correct length for elementId, otherwise elementId length is allready valid |
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459 if ( index != KErrNotFound) |
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460 { |
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461 elementId.Set( ptr.Left( index)); |
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462 ptr.Set( ptr.Mid( index)); |
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463 } |
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464 |
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465 //read element id to TUint32 variable (policySystemid) |
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466 TLex8 lex( elementId); |
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467 lex.Val( policySystemid, EDecimal); |
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468 |
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469 CElementBase * element = 0; |
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470 |
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471 if ( iAddToEditableCache ) |
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472 { |
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473 element = iStorage->GetEditableElementL( policySystemid); |
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474 } |
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475 else |
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476 { |
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477 element = iStorage->GetElementL( policySystemid); |
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478 } |
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479 |
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480 //add id element (element with id) to active element |
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481 if ( element ) |
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482 { |
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483 iActiveElement->AddIdElementL( element); |
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484 } |
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485 else |
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486 { |
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487 HandleNativeErrorL( KErrParser); |
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488 } |
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489 |
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490 //at least one element must be found |
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491 atLeastOneId = ETrue; |
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492 } |
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493 |
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494 if ( !atLeastOneId) |
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495 { |
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496 HandleNativeErrorL( KErrParser); |
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497 } |
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498 |
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499 #endif //__POLICY_BASE_CREATOR_TOOL |
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500 } |
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501 |
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502 // ----------------------------------------------------------------------------- |
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503 // CPolicyParser::OnStartDocumentL() |
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504 // ----------------------------------------------------------------------------- |
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505 // |
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506 void CPolicyParser::OnStartDocumentL(const Xml::RDocumentParameters& aDocParam, TInt /*aErrorCode*/) |
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507 { |
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508 if ( aDocParam.CharacterSetName().DesC() == PolicyLanguage::XACML::CharacterSetUTF8) |
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509 { |
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510 iValidCharacterSet = ETrue; |
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511 } |
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512 } |
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513 |
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514 // ----------------------------------------------------------------------------- |
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515 // CPolicyParser::OnEndDocumentL() |
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516 // ----------------------------------------------------------------------------- |
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517 // |
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518 void CPolicyParser::OnEndDocumentL(TInt /*aErrorCode*/) |
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519 { |
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520 } |
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521 |
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522 // ----------------------------------------------------------------------------- |
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523 // CPolicyParser::OnStartElementL() |
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524 // ----------------------------------------------------------------------------- |
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525 // |
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526 void CPolicyParser::OnStartElementL(const Xml::RTagInfo& aElement, const Xml::RAttributeArray& aAttributes, TInt /*aErrorCode*/) |
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527 { |
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528 //Debug variables |
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529 const TDesC8& prefix( aElement.Prefix().DesC()); |
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530 const TDesC8& uri(aElement.Uri().DesC()); |
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531 //Debug variables |
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532 |
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533 //Set active element name (used in error handling) |
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534 iActiveElementName.Set( aElement.LocalName().DesC()); |
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535 TPtrC8 elementName = iActiveElementName; |
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536 |
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537 //if content is XACML, convert it to native language |
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538 if ( iLanguage == EXACML ) |
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539 { |
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540 elementName.Set( ConvertElementNamesL( iActiveElementName)); |
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541 } |
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542 |
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543 TBool createNewElement = ETrue; |
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544 if ( iActiveElement ) |
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545 { |
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546 //When activeelement is created (ENotLoaded state) and stack size is 0, parser |
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547 //assumes that activeelement is seed element and there is no need to create new elelent |
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548 if ((iActiveElement->iElementState == ENotLoadedEditableElement || |
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549 iActiveElement->iElementState == ENotLoaded ) && iElementStack->Count() == 0) |
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550 { |
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551 //element must have valid type |
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552 if ( !iActiveElement->IdentificateElement( elementName)) |
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553 { |
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554 HandleNativeErrorL( KErrParser); |
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555 } |
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556 createNewElement = EFalse; |
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557 } |
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558 } |
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559 |
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560 //Identifie type and create new element |
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561 CElementBase * element( NULL); |
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562 if ( createNewElement ) |
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563 { |
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564 if ( CAttributeValue::IdentificateType( elementName) ) |
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565 { |
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566 element = CAttributeValue::NewL(); |
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567 } else |
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568 if ( CSubjectAttributeDesignator::IdentificateType( elementName) ) |
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569 { |
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570 element = CSubjectAttributeDesignator::NewL(); |
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571 } else |
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572 if ( CActionAttributeDesignator::IdentificateType( elementName) ) |
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573 { |
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574 element = CActionAttributeDesignator::NewL(); |
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575 } else |
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576 if ( CResourceAttributeDesignator::IdentificateType( elementName) ) |
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577 { |
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578 element = CResourceAttributeDesignator::NewL(); |
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579 } else |
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580 if ( CEnvironmentAttributeDesignator::IdentificateType( elementName) ) |
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581 { |
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582 element = CEnvironmentAttributeDesignator::NewL(); |
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583 } else |
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584 if ( CMatchObject::IdentificateType( elementName) ) |
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585 { |
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586 element = CMatchObject::NewL(elementName); |
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587 } else |
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588 if ( CSubject::IdentificateType( elementName) ) |
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589 { |
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590 element = CSubject::NewL(); |
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591 } else |
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592 if ( CAction::IdentificateType( elementName) ) |
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593 { |
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594 element = CAction::NewL(); |
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595 } else |
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596 if ( CResource::IdentificateType( elementName) ) |
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597 { |
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598 element = CResource::NewL(); |
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599 } else |
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600 if ( CEnvironment::IdentificateType( elementName) ) |
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601 { |
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602 element = CEnvironment::NewL(); |
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603 } else |
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604 if ( CSubjects::IdentificateType( elementName) ) |
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605 { |
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606 element = CSubjects::NewL(); |
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607 } else |
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608 if ( CActions::IdentificateType( elementName) ) |
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609 { |
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610 element = CActions::NewL(); |
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611 } else |
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612 if ( CResources::IdentificateType( elementName) ) |
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613 { |
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614 element = CResources::NewL(); |
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615 } else |
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616 if ( CEnvironments::IdentificateType( elementName) ) |
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617 { |
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618 element = CEnvironments::NewL(); |
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619 } else |
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620 if ( CRule::IdentificateType( elementName) ) |
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621 { |
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622 element = CRule::NewL(); |
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623 } else |
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624 if ( CTarget::IdentificateType( elementName) ) |
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625 { |
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626 element = CTarget::NewL(); |
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627 } else |
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628 if ( CPolicy::IdentificateType( elementName) ) |
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629 { |
|
630 element = CPolicy::NewL(); |
|
631 } else |
|
632 if ( CPolicySet::IdentificateType( elementName) ) |
|
633 { |
|
634 element = CPolicySet::NewL(); |
|
635 } else |
|
636 if ( CDescription::IdentificateType( elementName) ) |
|
637 { |
|
638 element = CDescription::NewL(); |
|
639 } else |
|
640 if ( CApply::IdentificateType( elementName) ) |
|
641 { |
|
642 element = CApply::NewL(); |
|
643 } else |
|
644 if ( CCondition::IdentificateType( elementName) ) |
|
645 { |
|
646 element = CCondition::NewL(); |
|
647 } |
|
648 else |
|
649 { |
|
650 HandleErrorL( ParserErrors::InvalidElement, iActiveElementName); |
|
651 } |
|
652 |
|
653 //set element to correct state in Native mode |
|
654 if ( iLanguage == ENative) |
|
655 { |
|
656 element->iElementState = iAddToEditableCache ? EEditableCacheElement : ECacheElement; |
|
657 } |
|
658 } |
|
659 else |
|
660 { |
|
661 //and if active element is already created use it.... |
|
662 element = iActiveElement; |
|
663 } |
|
664 |
|
665 //cleanup... |
|
666 CleanupStack::PushL( element); |
|
667 |
|
668 //search eleement attributes |
|
669 for ( TInt i = 0; i < aAttributes.Count(); i++) |
|
670 { |
|
671 Xml::RAttribute attribute( aAttributes[i]); |
|
672 |
|
673 //DEBUG VARIABLES |
|
674 const TDesC8& prefixx( attribute.Attribute().Prefix().DesC()); |
|
675 const TDesC8& urii(attribute.Attribute().Uri().DesC()); |
|
676 const TDesC8& elementNamee( attribute.Attribute().LocalName().DesC()); |
|
677 //DEBUG VARIABLES |
|
678 |
|
679 TPtrC8 convertedName = attribute.Attribute().LocalName().DesC(); |
|
680 TPtrC8 convertedValue = attribute.Value().DesC(); |
|
681 |
|
682 //if XACML used, convert names to native language |
|
683 if ( iLanguage == EXACML ) |
|
684 { |
|
685 convertedName.Set( ConvertAttributesL( attribute.Attribute().LocalName().DesC())); |
|
686 convertedValue.Set( ConvertValues( EXACML, attribute.Value().DesC())); |
|
687 } |
|
688 |
|
689 //and add attributes to element |
|
690 element->AddAttributeL( this, convertedName, convertedValue ); |
|
691 } |
|
692 |
|
693 //add element to element stack |
|
694 iElementStack->PushL( iActiveElement); |
|
695 |
|
696 //and if new element created |
|
697 if ( createNewElement ) |
|
698 { |
|
699 if ( iActiveElement != NULL) |
|
700 { |
|
701 //if active element exist add element to active element... |
|
702 iActiveElement->AddElementL( this, element); |
|
703 } |
|
704 else |
|
705 { |
|
706 //...otherwise add element to root |
|
707 iRootElement = element; |
|
708 } |
|
709 |
|
710 //current element is active element for next element |
|
711 iActiveElement = element; |
|
712 } |
|
713 |
|
714 //cleanup: element |
|
715 CleanupStack::Pop( element); |
|
716 } |
|
717 |
|
718 // ----------------------------------------------------------------------------- |
|
719 // CPolicyParser::OnEndElementL() |
|
720 // ----------------------------------------------------------------------------- |
|
721 // |
|
722 |
|
723 void CPolicyParser::OnEndElementL(const Xml::RTagInfo& aElement, TInt /*aErrorCode*/) |
|
724 { |
|
725 //set active element name |
|
726 iActiveElementName.Set( aElement.LocalName().DesC()); |
|
727 TPtrC8 elementName( iActiveElementName); |
|
728 |
|
729 |
|
730 //if XACML parsing, convert name to native language |
|
731 if ( iLanguage == EXACML) |
|
732 { |
|
733 elementName.Set( ConvertElementNamesL( iActiveElementName)); |
|
734 } |
|
735 |
|
736 //Check is end stack correct |
|
737 if ( !iActiveElement->IdentificateElement( elementName)) |
|
738 { |
|
739 HandleErrorL( ParserErrors::InvalidElement, aElement.LocalName().DesC()); |
|
740 } |
|
741 |
|
742 //when parsing XACML make validy check for element... |
|
743 if ( iLanguage == EXACML) |
|
744 { |
|
745 if ( !iActiveElement->ValidElement() ) |
|
746 { |
|
747 HandleErrorL( ParserErrors::InvalidElement, iActiveElementName); |
|
748 } |
|
749 } |
|
750 |
|
751 //previous active element from stack |
|
752 iActiveElement = iElementStack->Pop(); |
|
753 } |
|
754 |
|
755 // ----------------------------------------------------------------------------- |
|
756 // CPolicyParser::OnContentL() |
|
757 // ----------------------------------------------------------------------------- |
|
758 // |
|
759 |
|
760 void CPolicyParser::OnContentL(const TDesC8& aBytes, TInt /*aErrorCode*/) |
|
761 { |
|
762 //activename.... |
|
763 iActiveElementName.Set( aBytes); |
|
764 |
|
765 TPtrC8 ptr = aBytes; |
|
766 |
|
767 //remove tabs, spaces, line feeds and so on |
|
768 ptr.Set( aBytes); |
|
769 if ( ptr.Length() == 1 && (ptr[0] == 9 || ptr[0] == 13 || ptr[0] == 10 || ptr[0] == 32)) |
|
770 { |
|
771 //do nothing |
|
772 } |
|
773 else |
|
774 { |
|
775 //remove extra marks before id check |
|
776 //from start |
|
777 while ( ptr[0] == 9 || ptr[0] == 13 || ptr[0] == 10 || ptr[0] == 32) |
|
778 { |
|
779 |
|
780 ptr.Set( ptr.Mid(1)); |
|
781 if ( ptr.Length() == 0) |
|
782 { |
|
783 break; |
|
784 } |
|
785 } |
|
786 |
|
787 //from end |
|
788 TInt index = ptr.Length() - 1; |
|
789 if ( index >= 0 ) |
|
790 { |
|
791 while ( ptr[ index] == 9 || ptr[ index] == 13 || ptr[ index] == 10 || ptr[ index] == 32) |
|
792 { |
|
793 ptr.Set( ptr.Ptr(), index); |
|
794 if ( ptr.Length() == 0) |
|
795 { |
|
796 break; |
|
797 } |
|
798 |
|
799 index--; |
|
800 } |
|
801 } |
|
802 |
|
803 if ( ptr.Length() > 0 ) |
|
804 { |
|
805 //if delimiter found, element content contains element ids, which belong to element |
|
806 if ( ptr[0] == KMessageDelimiterChar) |
|
807 { |
|
808 //create ID-elements |
|
809 CreateIdElementsL( ptr); |
|
810 } |
|
811 else |
|
812 { |
|
813 //or add element content |
|
814 iActiveElement->AddContentL( this, ptr); |
|
815 } |
|
816 } |
|
817 } |
|
818 |
|
819 } |
|
820 |
|
821 // ----------------------------------------------------------------------------- |
|
822 // CPolicyParser::SetExternalIdChecked() |
|
823 // ----------------------------------------------------------------------------- |
|
824 // |
|
825 |
|
826 void CPolicyParser::SetExternalIdChecked( TAllowedExternalIdConflicts aCheckerState) |
|
827 { |
|
828 iCheckerState = aCheckerState; |
|
829 } |
|
830 |
|
831 // ----------------------------------------------------------------------------- |
|
832 // CPolicyParser::SetExternalIdChecked() |
|
833 // ----------------------------------------------------------------------------- |
|
834 // |
|
835 |
|
836 void CPolicyParser::CheckExternalIdL( const HBufC8 * iExternalId) |
|
837 { |
|
838 //make external id check only when parsing XACML |
|
839 if ( iLanguage == EXACML && iCheckerState != KNoExternalIdCheck) |
|
840 { |
|
841 if ( !iStorage->IsRealIdValidL( *iExternalId)) |
|
842 { |
|
843 if ( !( iCheckerState == KSameExternalIdAllowedForRoot && iElementStack->Count() == 0 )) |
|
844 { |
|
845 HandleErrorL( ManagementErrors::IdAlreadyExist, *iExternalId); |
|
846 } |
|
847 } |
|
848 } |
|
849 } |
|
850 |
|
851 // ----------------------------------------------------------------------------- |
|
852 // CPolicyParser::ActiveElementName() |
|
853 // ----------------------------------------------------------------------------- |
|
854 // |
|
855 |
|
856 TDesC8& CPolicyParser::ActiveElementName() |
|
857 { |
|
858 return iActiveElementName; |
|
859 } |
|
860 |
|
861 // ----------------------------------------------------------------------------- |
|
862 // CPolicyParser::CheckCompiningAlgorithmsL() |
|
863 // ----------------------------------------------------------------------------- |
|
864 // |
|
865 void CPolicyParser::CheckCompiningAlgorithmsL( TNativeElementTypes aType, const TDesC8& aAlgorithmId ) |
|
866 { |
|
867 //check only when parsinf XACML |
|
868 if ( iLanguage == EXACML) |
|
869 { |
|
870 if ( aAlgorithmId == PolicyLanguage::NativeLanguage::CombiningAlgorithms::RuleDenyOverrides || |
|
871 aAlgorithmId == PolicyLanguage::NativeLanguage::CombiningAlgorithms::RulePermitOverrides) |
|
872 { |
|
873 if ( aType != EPolicy) |
|
874 { |
|
875 HandleErrorL( ParserErrors::InvalidValue, aAlgorithmId); |
|
876 } |
|
877 } |
|
878 else |
|
879 if ( aAlgorithmId == PolicyLanguage::NativeLanguage::CombiningAlgorithms::PolicyDenyOverrides || |
|
880 aAlgorithmId == PolicyLanguage::NativeLanguage::CombiningAlgorithms::PolicyPermitOverrides) |
|
881 { |
|
882 if ( aType != EPolicySet) |
|
883 { |
|
884 HandleErrorL( ParserErrors::InvalidValue, aAlgorithmId); |
|
885 } |
|
886 } |
|
887 else |
|
888 { |
|
889 HandleErrorL( ParserErrors::InvalidValue, aAlgorithmId); |
|
890 } |
|
891 } |
|
892 } |
|
893 |
|
894 // ----------------------------------------------------------------------------- |
|
895 // CPolicyParser::CheckFunctionIdL() |
|
896 // ----------------------------------------------------------------------------- |
|
897 // |
|
898 |
|
899 void CPolicyParser::CheckFunctionIdL( const TNativeElementTypes& aType, const TDesC8& aFunctionId ) |
|
900 { |
|
901 if ( iLanguage == EXACML) |
|
902 { |
|
903 //these functions are valid for apply-component |
|
904 if ( aType == EApply) |
|
905 { |
|
906 if (!( aFunctionId == PolicyLanguage::NativeLanguage::Functions::FunctionAnd || |
|
907 aFunctionId == PolicyLanguage::NativeLanguage::Functions::FunctionNot || |
|
908 aFunctionId == PolicyLanguage::NativeLanguage::Functions::FunctionOr || |
|
909 aFunctionId == PolicyLanguage::NativeLanguage::Functions::FunctionCertificatedSession || |
|
910 aFunctionId == PolicyLanguage::NativeLanguage::Functions::FunctionRuleTargetStructure || |
|
911 aFunctionId == PolicyLanguage::NativeLanguage::Functions::FunctionUserAcceptCorpPolicy || |
|
912 aFunctionId == PolicyLanguage::NativeLanguage::Functions::FunctionBooleanEqualId || |
|
913 aFunctionId == PolicyLanguage::NativeLanguage::Functions::FunctionStringEqualId )) |
|
914 { |
|
915 HandleErrorL( ParserErrors::InvalidValue, aFunctionId ); |
|
916 } |
|
917 } //and these are valid also for other elements (match elements in practice) |
|
918 else if (!(aFunctionId == PolicyLanguage::NativeLanguage::Functions::FunctionStringEqualId || |
|
919 aFunctionId == PolicyLanguage::NativeLanguage::Functions::FunctionBooleanEqualId || |
|
920 aFunctionId == PolicyLanguage::NativeLanguage::Functions::FunctionUserAcceptCorpPolicy || |
|
921 aFunctionId == PolicyLanguage::NativeLanguage::Functions::TrustedRoleMatch || |
|
922 aFunctionId == PolicyLanguage::NativeLanguage::Functions::TrustedSubjectMatch)) |
|
923 { |
|
924 HandleErrorL( ParserErrors::InvalidValue, aFunctionId ); |
|
925 } |
|
926 } |
|
927 } |
|
928 |
|
929 // ----------------------------------------------------------------------------- |
|
930 // CPolicyParser::CheckEffectL() |
|
931 // ----------------------------------------------------------------------------- |
|
932 // |
|
933 |
|
934 void CPolicyParser::CheckEffectL( const TDesC8& aEffect ) |
|
935 { |
|
936 if ( iLanguage == EXACML) |
|
937 { |
|
938 if (!(aEffect == PolicyLanguage::NativeLanguage::Rule::Deny || |
|
939 aEffect == PolicyLanguage::NativeLanguage::Rule::Permit )) |
|
940 { |
|
941 HandleErrorL( ParserErrors::InvalidValue, aEffect ); |
|
942 } |
|
943 } |
|
944 } |
|
945 |
|
946 // ----------------------------------------------------------------------------- |
|
947 // CPolicyParser::CheckDataTypeL() |
|
948 // ----------------------------------------------------------------------------- |
|
949 // |
|
950 |
|
951 void CPolicyParser::CheckDataTypeL( const TDesC8& aDataType ) |
|
952 { |
|
953 if ( iLanguage == EXACML) |
|
954 { |
|
955 if (!(aDataType == PolicyLanguage::NativeLanguage::AttributeValues::StringDataType || |
|
956 aDataType == PolicyLanguage::NativeLanguage::AttributeValues::BooleanDataType )) |
|
957 { |
|
958 HandleErrorL( ParserErrors::InvalidValue, aDataType ); |
|
959 } |
|
960 } |
|
961 } |
|
962 |
|
963 // ----------------------------------------------------------------------------- |
|
964 // CPolicyParser::OnStartPrefixMappingL() |
|
965 // ----------------------------------------------------------------------------- |
|
966 // |
|
967 void CPolicyParser::OnStartPrefixMappingL(const RString& /*aPrefix*/, const RString& /*aUri*/, TInt /*aErrorCode*/) |
|
968 { |
|
969 |
|
970 } |
|
971 |
|
972 // ----------------------------------------------------------------------------- |
|
973 // CPolicyParser::OnEndPrefixMappingL() |
|
974 // ----------------------------------------------------------------------------- |
|
975 // |
|
976 void CPolicyParser::OnEndPrefixMappingL(const RString& /*aPrefix*/, TInt /*aErrorCode*/) |
|
977 { |
|
978 |
|
979 } |
|
980 |
|
981 // ----------------------------------------------------------------------------- |
|
982 // CPolicyParser::OnIgnorableWhiteSpaceL() |
|
983 // ----------------------------------------------------------------------------- |
|
984 // |
|
985 void CPolicyParser::OnIgnorableWhiteSpaceL(const TDesC8& /*aBytes*/, TInt /*aErrorCode*/) |
|
986 { |
|
987 |
|
988 } |
|
989 |
|
990 // ----------------------------------------------------------------------------- |
|
991 // CPolicyParser::OnSkippedEntityL() |
|
992 // ----------------------------------------------------------------------------- |
|
993 // |
|
994 void CPolicyParser::OnSkippedEntityL(const RString& /*aName*/, TInt /*aErrorCode*/) |
|
995 { |
|
996 |
|
997 } |
|
998 |
|
999 |
|
1000 // ----------------------------------------------------------------------------- |
|
1001 // CPolicyParser::OnProcessingInstructionL() |
|
1002 // ----------------------------------------------------------------------------- |
|
1003 // |
|
1004 void CPolicyParser::OnProcessingInstructionL(const TDesC8& /*aTarget*/, const TDesC8& /*aData*/, TInt /*aErrorCode*/) |
|
1005 { |
|
1006 |
|
1007 } |
|
1008 |
|
1009 // ----------------------------------------------------------------------------- |
|
1010 // CPolicyParser::OnError() |
|
1011 // ----------------------------------------------------------------------------- |
|
1012 // |
|
1013 void CPolicyParser::OnError(TInt /*aErrorCode*/) |
|
1014 { |
|
1015 // we need to leave here because Policy Engine traps parser errors, even though |
|
1016 // this function does not have L in it's name. |
|
1017 HandleErrorL( ParserErrors::SyntaxError ); |
|
1018 } |
|
1019 |
|
1020 // ----------------------------------------------------------------------------- |
|
1021 // CPolicyParser::GetExtendedInterface() |
|
1022 // ----------------------------------------------------------------------------- |
|
1023 // |
|
1024 TAny* CPolicyParser::GetExtendedInterface(const TInt32 /*aUid*/) |
|
1025 { |
|
1026 |
|
1027 return NULL; |
|
1028 } |
|
1029 |
|
1030 // ----------------------------------------------------------------------------- |
|
1031 // CPolicyParser::ConvertElementNamesL() |
|
1032 // ----------------------------------------------------------------------------- |
|
1033 // |
|
1034 const TDesC8& CPolicyParser::ConvertElementNamesL( const TDesC8& aElementName ) |
|
1035 { |
|
1036 using namespace PolicyLanguage; |
|
1037 |
|
1038 //Conver name from XACML to native language (maybe array structure should be used to avoid editing when values is added) |
|
1039 if ( AttributeDesignators::SubjectAttributeDesignator[ EXACML ] == aElementName ) return AttributeDesignators::SubjectAttributeDesignator[ ENative]; |
|
1040 if ( AttributeDesignators::ActionAttributeDesignator[ EXACML ] == aElementName ) return AttributeDesignators::ActionAttributeDesignator[ ENative]; |
|
1041 if ( AttributeDesignators::ResourceAttributeDesignator[ EXACML ] == aElementName ) return AttributeDesignators::ResourceAttributeDesignator[ ENative]; |
|
1042 if ( AttributeDesignators::EnvironmentAttributeDesignator[ EXACML ] == aElementName ) return AttributeDesignators::EnvironmentAttributeDesignator[ ENative]; |
|
1043 |
|
1044 if ( AttributeValues::AttributeValue[ EXACML ] == aElementName ) return AttributeValues::AttributeValue[ ENative]; |
|
1045 |
|
1046 if ( MatchObject::SubjectMatch[ EXACML ] == aElementName ) return MatchObject::SubjectMatch[ ENative]; |
|
1047 if ( MatchObject::ActionMatch[ EXACML ] == aElementName ) return MatchObject::ActionMatch[ ENative]; |
|
1048 if ( MatchObject::EnvironmentMatch[ EXACML ] == aElementName ) return MatchObject::EnvironmentMatch[ ENative]; |
|
1049 if ( MatchObject::ResourceMatch[ EXACML ] == aElementName ) return MatchObject::ResourceMatch[ ENative]; |
|
1050 |
|
1051 if ( MatchContainers::Subject[ EXACML ] == aElementName ) return MatchContainers::Subject[ ENative]; |
|
1052 if ( MatchContainers::Subjects[ EXACML ] == aElementName ) return MatchContainers::Subjects[ ENative]; |
|
1053 if ( MatchContainers::Action[ EXACML ] == aElementName ) return MatchContainers::Action[ ENative]; |
|
1054 if ( MatchContainers::Actions[ EXACML ] == aElementName ) return MatchContainers::Actions[ ENative]; |
|
1055 if ( MatchContainers::Resource[ EXACML ] == aElementName ) return MatchContainers::Resource[ ENative]; |
|
1056 if ( MatchContainers::Resources[ EXACML ] == aElementName ) return MatchContainers::Resources[ ENative]; |
|
1057 if ( MatchContainers::Environment[ EXACML ] == aElementName ) return MatchContainers::Environment[ ENative]; |
|
1058 if ( MatchContainers::Environments[ EXACML ] == aElementName ) return MatchContainers::Environments[ ENative]; |
|
1059 |
|
1060 if ( Rule::Rule[ EXACML ] == aElementName ) return Rule::Rule[ ENative]; |
|
1061 if ( Rule::Target[ EXACML ] == aElementName ) return Rule::Target[ ENative]; |
|
1062 if ( PolicySet::PolicySet[ EXACML ] == aElementName ) return PolicySet::PolicySet[ ENative]; |
|
1063 if ( Policy::Policy[ EXACML ] == aElementName ) return Policy::Policy[ ENative]; |
|
1064 |
|
1065 if ( Expressions::Apply[ EXACML ] == aElementName ) return Expressions::Apply[ ENative]; |
|
1066 if ( Expressions::Condition[ EXACML ] == aElementName ) return Expressions::Condition[ ENative]; |
|
1067 |
|
1068 if ( Description::Description[ EXACML ] == aElementName ) return Description::Description[ ENative]; |
|
1069 |
|
1070 HandleErrorL( ParserErrors::InvalidElement, aElementName); |
|
1071 |
|
1072 return aElementName; |
|
1073 } |
|
1074 |
|
1075 // ----------------------------------------------------------------------------- |
|
1076 // CPolicyParser::ConvertAttributesL() |
|
1077 // ----------------------------------------------------------------------------- |
|
1078 // |
|
1079 const TDesC8& CPolicyParser::ConvertAttributesL( const TDesC8& aType ) |
|
1080 { |
|
1081 using namespace PolicyLanguage; |
|
1082 |
|
1083 //Conver name from XACML to native language (maybe array structure should be used to avoid editing when values is added) |
|
1084 if ( AttributeDesignators::AttributeId[ EXACML ] == aType ) return AttributeDesignators::AttributeId[ ENative]; |
|
1085 if ( AttributeDesignators::DataType[ EXACML ] == aType ) return AttributeDesignators::DataType[ ENative]; |
|
1086 |
|
1087 if ( AttributeValues::DataType[ EXACML ] == aType ) return AttributeValues::DataType[ ENative]; |
|
1088 |
|
1089 if ( MatchObject::MatchId[ EXACML ] == aType ) return MatchObject::MatchId[ ENative]; |
|
1090 |
|
1091 if ( Rule::RuleId[ EXACML ] == aType ) return Rule::RuleId[ ENative]; |
|
1092 if ( Rule::Effect[ EXACML ] == aType ) return Rule::Effect[ ENative]; |
|
1093 |
|
1094 if ( Expressions::FunctionId[ EXACML ] == aType ) return Expressions::FunctionId[ ENative]; |
|
1095 |
|
1096 if ( Policy::PolicyId[ EXACML ] == aType ) return Policy::PolicyId[ ENative]; |
|
1097 if ( Policy::RuleCombiningAlgId[ EXACML ] == aType ) return Policy::RuleCombiningAlgId[ ENative]; |
|
1098 |
|
1099 if ( PolicySet::PolicySetId[ EXACML ] == aType ) return PolicySet::PolicySetId[ ENative]; |
|
1100 if ( PolicySet::PolicyCombiningAlgId[ EXACML ] == aType ) return PolicySet::PolicyCombiningAlgId[ ENative]; |
|
1101 |
|
1102 HandleErrorL( ParserErrors::InvalidElement, aType); |
|
1103 |
|
1104 return aType; |
|
1105 } |
|
1106 |
|
1107 // ----------------------------------------------------------------------------- |
|
1108 // CPolicyParser::ConvertValues() |
|
1109 // ----------------------------------------------------------------------------- |
|
1110 // |
|
1111 const TDesC8& CPolicyParser::ConvertValues( TLanguageSelector aLanguage, const TDesC8& aValue) |
|
1112 { |
|
1113 using namespace PolicyLanguage; |
|
1114 |
|
1115 //Conver name from XACML (or native depends on aLanguage variable) to native (or XACML) language |
|
1116 //(maybe array structure should be used to avoid editing when values is added) |
|
1117 |
|
1118 //destination langauge, aLanguage is source language |
|
1119 TLanguageSelector destLang = ENative; |
|
1120 |
|
1121 if ( aLanguage == ENative) |
|
1122 { |
|
1123 destLang = EXACML; |
|
1124 } |
|
1125 |
|
1126 if ( AttributeValues::StringDataType[ aLanguage ] == aValue ) return AttributeValues::StringDataType[ destLang]; |
|
1127 if ( AttributeValues::BooleanDataType[ aLanguage ] == aValue ) return AttributeValues::BooleanDataType[ destLang]; |
|
1128 if ( AttributeValues::BooleanTrue[ aLanguage ] == aValue ) return AttributeValues::BooleanTrue[ destLang]; |
|
1129 if ( AttributeValues::BooleanFalse[ aLanguage ] == aValue ) return AttributeValues::BooleanFalse[ destLang]; |
|
1130 |
|
1131 if ( Rule::Permit[ aLanguage ] == aValue ) return Rule::Permit[ destLang]; |
|
1132 if ( Rule::Deny[ aLanguage ] == aValue ) return Rule::Deny[ destLang]; |
|
1133 |
|
1134 if ( Functions::TrustedRoleMatch[ aLanguage ] == aValue ) return Functions::TrustedRoleMatch[ destLang]; |
|
1135 if ( Functions::TrustedSubjectMatch[ aLanguage ] == aValue ) return Functions::TrustedSubjectMatch[ destLang]; |
|
1136 if ( Functions::FunctionStringEqualId[ aLanguage ] == aValue ) return Functions::FunctionStringEqualId[ destLang]; |
|
1137 if ( Functions::FunctionBooleanEqualId[ aLanguage ] == aValue ) return Functions::FunctionBooleanEqualId[ destLang]; |
|
1138 |
|
1139 if ( Functions::FunctionOr[ aLanguage ] == aValue ) return Functions::FunctionOr[ destLang]; |
|
1140 if ( Functions::FunctionAnd[ aLanguage ] == aValue ) return Functions::FunctionAnd[ destLang]; |
|
1141 if ( Functions::FunctionAnd[ aLanguage ] == aValue ) return Functions::FunctionAnd[ destLang]; |
|
1142 |
|
1143 if ( Functions::FunctionCertificatedSession[ aLanguage ] == aValue ) return Functions::FunctionCertificatedSession[ destLang]; |
|
1144 if ( Functions::FunctionUserAcceptCorpPolicy[ aLanguage ] == aValue ) return Functions::FunctionUserAcceptCorpPolicy[ destLang]; |
|
1145 if ( Functions::FunctionRuleTargetStructure[ aLanguage ] == aValue ) return Functions::FunctionRuleTargetStructure[ destLang]; |
|
1146 |
|
1147 if ( CombiningAlgorithms::RuleDenyOverrides[ aLanguage ] == aValue ) return CombiningAlgorithms::RuleDenyOverrides[ destLang]; |
|
1148 if ( CombiningAlgorithms::PolicyDenyOverrides[ aLanguage ] == aValue ) return CombiningAlgorithms::PolicyDenyOverrides[ destLang]; |
|
1149 if ( CombiningAlgorithms::RulePermitOverrides[ aLanguage ] == aValue ) return CombiningAlgorithms::RulePermitOverrides[ destLang]; |
|
1150 if ( CombiningAlgorithms::PolicyPermitOverrides[ aLanguage ] == aValue ) return CombiningAlgorithms::PolicyPermitOverrides[ destLang]; |
|
1151 |
|
1152 |
|
1153 return aValue; |
|
1154 } |
|
1155 |