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1 /* |
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2 * Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * Name : sipconnectionobserver.h |
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16 * Part of : SIP Client |
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17 * Interface : SDK API, SIP Client API |
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18 * Version : 1.0 |
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19 * |
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20 */ |
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21 |
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22 |
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23 |
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24 #ifndef MSIPCONNECTIONOBSERVER_H |
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25 #define MSIPCONNECTIONOBSERVER_H |
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26 |
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27 // INCLUDES |
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28 #include "sipconnection.h" |
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29 |
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30 // FORWARD DECLARATIONS |
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31 class CSIPDialogAssocBase; |
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32 class CSIPInviteDialogAssoc; |
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33 class CSIPRegistrationBinding; |
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34 class CSIPDialog; |
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35 class CSIPTransactionBase; |
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36 class CSIPServerTransaction; |
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37 |
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38 // CLASS DECLARATION |
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39 |
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40 /** |
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41 * @publishedAll |
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42 * @released |
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43 * |
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44 * An interface to be implemented by users of CSIPConnection. |
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45 * Interface allows to be able to receive requests, responses, connection state |
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46 * notifications and error notifications from sip stack. |
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47 * |
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48 * Note: The client must not delete related CSIPConnection object |
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49 * during the execution of the interface function. |
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50 * |
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51 * @lib n/a |
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52 */ |
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53 |
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54 class MSIPConnectionObserver |
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55 { |
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56 public: |
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57 /** |
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58 * A SIP request outside a dialog has been received from the network. |
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59 * |
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60 * @pre aTransaction != 0 |
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61 * @param aTransaction SIP server transaction. The ownership is |
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62 * transferred. |
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63 */ |
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64 virtual void IncomingRequest (CSIPServerTransaction* |
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65 aTransaction) = 0; |
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66 |
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67 /** |
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68 * A SIP request within a dialog has been received from the network. |
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69 * The client must resolve the actual dialog association to which |
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70 * this request belongs. |
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71 * |
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72 * @pre aTransaction != 0 |
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73 * @param aTransaction SIP server transaction. The ownership is |
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74 * transferred. |
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75 * @param aDialog the dialog that this transaction belongs to. |
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76 */ |
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77 virtual void IncomingRequest (CSIPServerTransaction* aTransaction, |
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78 CSIPDialog& aDialog) = 0; |
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79 |
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80 /** |
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81 * A SIP response received from the network. |
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82 * |
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83 * @param aTransaction contains response elements. |
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84 */ |
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85 virtual void IncomingResponse (CSIPClientTransaction& |
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86 aTransaction) = 0; |
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87 |
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88 /** |
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89 * A SIP response received from the network that is within a dialog |
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90 * association or creates a dialog association. |
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91 * |
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92 * @param aTransaction contains response elements. |
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93 * @param aDialogAssoc a dialog association. |
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94 */ |
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95 virtual void IncomingResponse ( |
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96 CSIPClientTransaction& aTransaction, |
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97 CSIPDialogAssocBase& aDialogAssoc) = 0; |
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98 |
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99 /** |
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100 * Multiple SIP responses have been received to the single INVITE due |
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101 * to the forking proxy. Note that each response creates a separate |
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102 * INVITE dialog association. |
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103 * Multiple responses can arrive until SIP stack completes UAC core |
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104 * INVITE transaction. |
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105 * If clients deletes INVITE transaction after first SIP response |
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106 * other possible responses will be consumed by the implementation. |
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107 * |
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108 * @param aTransaction contains response elements |
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109 * @param aDialogAssoc INVITE dialog association; the ownership is |
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110 * transferred |
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111 */ |
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112 virtual void IncomingResponse ( |
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113 CSIPClientTransaction& aTransaction, |
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114 CSIPInviteDialogAssoc* aDialogAssoc) = 0; |
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115 |
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116 /** |
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117 * A SIP response related a registration binding or an error response |
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118 * that is related to registration binding has been received |
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119 * from the network. |
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120 * |
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121 * @param aTransaction contains response elements |
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122 * @param aRegistration registration binding this transaction belongs to |
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123 */ |
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124 virtual void |
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125 IncomingResponse (CSIPClientTransaction& aTransaction, |
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126 CSIPRegistrationBinding& aRegistration) = 0; |
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127 |
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128 /** |
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129 * An asynchronous error has occurred in the stack related to the |
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130 * request indicated by the given transaction. |
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131 * |
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132 * @param aError system wide or SIP error code |
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133 * @param aTransaction failed transaction |
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134 * @param aSIPConnection a SIP connection |
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135 */ |
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136 virtual void ErrorOccured (TInt aError, |
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137 CSIPTransactionBase& aTransaction) = 0; |
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138 |
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139 /** |
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140 * An asynchronous error has occurred in the stack related |
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141 * to the request indicated by the given transaction. |
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142 * |
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143 * @param aError system wide or SIP error code |
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144 * @param aTransaction the failed transaction |
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145 * @param aRegistration the failed registration binding |
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146 */ |
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147 virtual void ErrorOccured (TInt aError, |
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148 CSIPClientTransaction& aTransaction, |
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149 CSIPRegistrationBinding& aRegistration) = 0; |
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150 |
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151 /** |
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152 * An asynchronous error has occured related to a request within |
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153 * an existing dialog. |
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154 * |
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155 * @param aError system wide or SIP error code |
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156 * @param aTransaction the failed transaction. |
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157 * @param aDialogAssoc the failed dialog associoation. |
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158 */ |
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159 virtual void ErrorOccured ( |
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160 TInt aError, |
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161 CSIPTransactionBase& aTransaction, |
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162 CSIPDialogAssocBase& aDialogAssoc) = 0; |
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163 |
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164 /** |
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165 * An asynchronous error has occured related to a refresh |
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166 * |
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167 * @param aError system wide or SIP error code |
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168 * @param aSIPRefresh original refresh object. |
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169 */ |
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170 virtual void ErrorOccured (TInt aError, CSIPRefresh& aSIPRefresh) = 0; |
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171 |
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172 /** |
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173 * An asynchronous error has occured related to a periodical refresh |
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174 * that relates to a registration. |
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175 * |
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176 * @param aError system wide or SIP error code; |
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177 * KErrCouldNotConnect if the refresh has failed |
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178 * due to the suspended connection. |
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179 * @param aRegistration associated registration binding |
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180 */ |
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181 virtual void ErrorOccured (TInt aError, |
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182 CSIPRegistrationBinding& aRegistration) = 0; |
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183 |
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184 /** |
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185 * An asynchronous error has occured related to a periodical refresh |
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186 * that belongs to SIP dialog association. |
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187 * |
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188 * @param aError system wide or SIP error code; |
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189 * KErrCouldNotConnect if the refresh has failed |
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190 * due to the suspended connection. |
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191 * @param aDialogAssoc SIP dialog association. |
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192 */ |
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193 virtual void ErrorOccured (TInt aError, |
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194 CSIPDialogAssocBase& aDialogAssoc) = 0; |
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195 |
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196 /** |
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197 * SIP stack has completed UAC core INVITE transaction 64*T1 seconds |
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198 * after the reception of the first 2xx response. No more 2xx responses |
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199 * can be received to the issued single INVITE. |
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200 * |
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201 * If the INVITE transaction does not create a dialog, or the INVITE |
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202 * transaction encounters an error, this event will not be sent. |
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203 * |
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204 * @param aTransaction a complete UAC core INVITE transaction |
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205 */ |
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206 virtual void InviteCompleted (CSIPClientTransaction& aTransaction) = 0; |
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207 |
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208 /** |
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209 * Invite was canceled with the CANCEL |
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210 * @param aTransaction a canceled INVITE UAS transaction |
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211 */ |
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212 virtual void InviteCanceled (CSIPServerTransaction& aTransaction) = 0; |
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213 |
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214 /** |
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215 * Connection state has changed. |
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216 * If connection state has changed to EInactive or EUnavailable, |
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217 * SIP stack has removed all stand-alone SIP refreshes, registrations |
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218 * and dialog associations that client requested to refresh. Client may |
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219 * re-issue refresh requests (stand-alone, registration or dialog |
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220 * association related) when connection becomes EActive again. |
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221 * SIP stack also terminates all pending SIP client transactions and no |
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222 * errors are reported back to the client about the terminated |
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223 * transactions nor about removed refreshes in order to avoid event |
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224 * flood. |
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225 * |
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226 * @param aState indicates the current connection state |
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227 */ |
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228 virtual void ConnectionStateChanged (CSIPConnection::TState aState) = 0; |
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229 }; |
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230 |
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231 #endif |