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1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Name : CSipAcceptContactStrategy.cpp |
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15 // Part of : SIP Client Resolver |
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16 // Version : 1.0 |
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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 "CSipAcceptContactStrategy.h" |
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22 #include "MSipClients.h" |
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23 #include "MSipClient.h" |
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24 #include "sipresponse.h" |
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25 #include "siprequest.h" |
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26 #include "sipacceptcontactheader.h" |
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27 #include "CSIPFeatureSet.h" |
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28 #include "sipstrings.h" |
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29 #include "sipstrconsts.h" |
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30 #include "TSIPClientScore.h" |
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31 #include "SIPCRLogs.h" |
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32 |
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33 const TUint K480ResponseCode = 480; |
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34 |
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35 |
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36 // ---------------------------------------------------------------------------- |
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37 // CSipAcceptContactStrategy::NewL |
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38 // ---------------------------------------------------------------------------- |
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39 // |
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40 CSipAcceptContactStrategy* CSipAcceptContactStrategy::NewL( |
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41 MSipClients& aSipClients, |
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42 CSipHeaderStrategyBase* aNextStrategy, |
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43 CSipHeaderStrategyBase* aNextStrategy2 ) |
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44 { |
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45 CSipAcceptContactStrategy* self = |
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46 CSipAcceptContactStrategy::NewLC( aSipClients, |
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47 aNextStrategy, |
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48 aNextStrategy2 ); |
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49 CleanupStack::Pop(self); |
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50 return self; |
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51 } |
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52 |
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53 // ---------------------------------------------------------------------------- |
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54 // CSipAcceptContactStrategy::NewLC |
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55 // ---------------------------------------------------------------------------- |
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56 // |
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57 CSipAcceptContactStrategy* CSipAcceptContactStrategy::NewLC( |
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58 MSipClients& aSipClients, |
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59 CSipHeaderStrategyBase* aNextStrategy, |
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60 CSipHeaderStrategyBase* aNextStrategy2 ) |
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61 { |
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62 CSipAcceptContactStrategy* self = |
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63 new(ELeave)CSipAcceptContactStrategy( aSipClients, |
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64 aNextStrategy, |
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65 aNextStrategy2 ); |
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66 CleanupStack::PushL(self); |
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67 return self; |
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68 } |
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69 |
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70 // ---------------------------------------------------------------------------- |
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71 // CSipAcceptContactStrategy::CSipAcceptContactStrategy |
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72 // ---------------------------------------------------------------------------- |
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73 // |
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74 CSipAcceptContactStrategy::CSipAcceptContactStrategy( |
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75 MSipClients& aSipClients, |
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76 CSipHeaderStrategyBase* aNextStrategy, |
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77 CSipHeaderStrategyBase* aNextStrategy2 ) |
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78 : CSipHeaderStrategyBase( aSipClients,aNextStrategy,aNextStrategy2 ) |
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79 { |
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80 iAcceptContactHeaderName = |
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81 SIPStrings::StringF(SipStrConsts::EAcceptContactHeader); |
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82 } |
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83 |
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84 // ---------------------------------------------------------------------------- |
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85 // CSipAcceptContactStrategy::~CSipAcceptContactStrategy |
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86 // ---------------------------------------------------------------------------- |
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87 // |
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88 CSipAcceptContactStrategy::~CSipAcceptContactStrategy () |
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89 { |
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90 } |
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91 |
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92 // ---------------------------------------------------------------------------- |
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93 // CSipAcceptContactStrategy::ApplyL |
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94 // ---------------------------------------------------------------------------- |
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95 // |
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96 CSIPResponse* CSipAcceptContactStrategy::ApplyL( |
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97 CSIPRequest& aRequest, |
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98 RArray<TUid>& aUids, |
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99 TBool& aContinueSearch, |
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100 CSIPClientResolver2& aClientResolver2 ) |
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101 { |
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102 SIP_CR_LOG("CSipAcceptContactStrategy::ApplyL") |
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103 CSIPResponse* response = NULL; |
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104 // The strategy is applied only for requests that contain Accept-Contact |
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105 if (aRequest.HasHeader(iAcceptContactHeaderName)) |
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106 { |
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107 RArray<TSIPClientScore> scores(1); |
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108 CleanupClosePushL(scores); |
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109 RPointerArray<CSIPFeatureSet> requestFeatureSets = |
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110 CreateFeatureSetsL(aRequest); |
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111 TCleanupItem cleanupItem(DestroyFeatureSets,&requestFeatureSets); |
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112 CleanupStack::PushL(cleanupItem); |
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113 for (TInt i=0; i < aUids.Count(); i++) |
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114 { |
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115 TUid uid(aUids[i]); |
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116 MSipClient* client = iSipClients.GetByUID(uid); |
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117 if (client) |
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118 { |
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119 TInt score = CalculateScore(*client,requestFeatureSets); |
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120 if (score > 0) |
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121 { |
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122 TSIPClientScore clientScore(score,uid); |
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123 // The score is used as a key |
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124 scores.InsertInSignedKeyOrderAllowRepeatsL(clientScore); |
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125 } |
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126 } |
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127 } |
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128 CleanupStack::PopAndDestroy(1); // cleanupItem |
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129 TInt clientCount = scores.Count(); |
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130 aUids.Reset(); // empties the array |
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131 if (clientCount > 0) |
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132 { |
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133 // The scores are in increasing order. |
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134 // The last is the best match. Reverse the order. |
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135 for (TInt i=scores.Count()-1; i>=0; i--) |
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136 { |
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137 // In the resulting array the first is the best match |
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138 aUids.AppendL(scores[i].iUid); |
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139 } |
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140 if (iNextStrategy && clientCount > 1) |
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141 { |
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142 // Apply the next strategy only if |
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143 // there are still more than one matching clients. |
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144 response = iNextStrategy->ApplyL(aRequest,aUids, |
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145 aContinueSearch, |
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146 aClientResolver2); |
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147 } |
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148 } |
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149 else |
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150 { |
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151 if ( iNextStrategy2 ) |
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152 { |
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153 response = iNextStrategy2->ApplyL(aRequest,aUids, |
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154 aContinueSearch, |
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155 aClientResolver2); |
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156 } |
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157 else |
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158 { |
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159 response = CreateResponseL(); |
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160 } |
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161 |
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162 } |
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163 CleanupStack::PopAndDestroy(1); // scores |
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164 } |
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165 else |
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166 { |
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167 if (iNextStrategy) |
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168 { |
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169 response = iNextStrategy->ApplyL(aRequest,aUids,aContinueSearch, |
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170 aClientResolver2); |
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171 } |
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172 } |
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173 |
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174 return response; |
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175 } |
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176 |
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177 // ---------------------------------------------------------------------------- |
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178 // CSipAcceptContactStrategy::CreateResponseL |
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179 // ---------------------------------------------------------------------------- |
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180 // |
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181 CSIPResponse* CSipAcceptContactStrategy::CreateResponseL() |
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182 { |
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183 return CSIPResponse::NewL(K480ResponseCode, |
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184 SIPStrings::StringF(SipStrConsts::EPhraseTemporarilyNotAvailable)); |
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185 } |
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186 |
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187 // ---------------------------------------------------------------------------- |
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188 // CSipAcceptContactStrategy::CompareHeaders |
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189 // ---------------------------------------------------------------------------- |
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190 // |
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191 TBool CSipAcceptContactStrategy::CompareHeaders( |
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192 CSIPRequest& /*aRequest*/, |
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193 MSipClient& /*aClient*/) |
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194 { |
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195 // Not implemented for this sub-class |
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196 return EFalse; |
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197 } |
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198 |
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199 // ---------------------------------------------------------------------------- |
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200 // CSipAcceptContactStrategy::CreateFeatureSetsL |
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201 // ---------------------------------------------------------------------------- |
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202 // |
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203 RPointerArray<CSIPFeatureSet> CSipAcceptContactStrategy::CreateFeatureSetsL( |
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204 CSIPRequest& aRequest) |
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205 { |
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206 RPointerArray<CSIPFeatureSet> featureSets; |
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207 TCleanupItem cleanupItem(DestroyFeatureSets,&featureSets); |
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208 CleanupStack::PushL(cleanupItem); |
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209 TSglQueIter<CSIPHeaderBase> iter = |
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210 aRequest.Headers(iAcceptContactHeaderName); |
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211 while (iter) |
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212 { |
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213 CSIPHeaderBase* tmp = iter++; |
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214 CSIPAcceptContactHeader* acceptContact = |
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215 static_cast<CSIPAcceptContactHeader*>(tmp); |
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216 CSIPFeatureSet* featureSet = CSIPFeatureSet::NewLC(*acceptContact); |
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217 featureSets.AppendL(featureSet); |
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218 CleanupStack::Pop(featureSet); |
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219 } |
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220 CleanupStack::Pop(1); // cleanupItem |
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221 return featureSets; |
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222 } |
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223 |
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224 // ---------------------------------------------------------------------------- |
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225 // CSipAcceptContactStrategy::CalculateScore |
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226 // ---------------------------------------------------------------------------- |
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227 // |
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228 TInt CSipAcceptContactStrategy::CalculateScore( |
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229 MSipClient& aClient, |
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230 const RPointerArray<CSIPFeatureSet>& aRequestFeatureSets) const |
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231 { |
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232 TInt score = 0; |
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233 CSIPFeatureSet& clientFeatureSet = aClient.SIPFeatureSet(); |
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234 for (TInt i = 0; i < aRequestFeatureSets.Count(); i++) |
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235 { |
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236 CSIPFeatureSet& requestFeatureSet = *aRequestFeatureSets[i]; |
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237 TInt tmp = clientFeatureSet.CalculateScore(requestFeatureSet); |
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238 if (tmp == 0 && requestFeatureSet.Require()) |
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239 { |
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240 return 0; |
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241 } |
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242 score += tmp; |
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243 } |
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244 return score; |
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245 } |
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246 |
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247 // ----------------------------------------------------------------------------- |
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248 // CSipAcceptContactStrategy::DestroyFeatureSets |
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249 // ----------------------------------------------------------------------------- |
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250 // |
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251 void CSipAcceptContactStrategy::DestroyFeatureSets(TAny* aFeatureSets) |
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252 { |
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253 RPointerArray<CSIPFeatureSet>* featureSets = |
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254 reinterpret_cast<RPointerArray<CSIPFeatureSet>*>(aFeatureSets); |
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255 if (featureSets) |
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256 { |
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257 featureSets->ResetAndDestroy(); |
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258 } |
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259 } |