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1 /* |
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2 * Copyright (c) 2006-2007 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: ?Description |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include "irdataprovider.h" |
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20 #include "irdataproviderobserver.h" |
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21 #include "irdebug.h" |
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22 #include "irhttpdataprovider.h" |
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23 #include "irhttprequestdata.h" |
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24 #include "irsettings.h" |
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25 |
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26 // --------------------------------------------------------------------------- |
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27 // CIRDataProvider::NewL(MIRDataProviderObserver& aObserver) |
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28 // Creates instance of CIRDataProvider. |
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29 // --------------------------------------------------------------------------- |
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30 // |
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31 EXPORT_C CIRDataProvider *CIRDataProvider::NewL( |
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32 MIRDataProviderObserver &aObserver ) |
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33 { |
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34 IRLOG_DEBUG( "CIRDataProvider::NewL - Entering" ); |
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35 CIRDataProvider *self = NewLC( aObserver ); |
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36 CleanupStack::Pop(self); |
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37 IRLOG_DEBUG( "CIRDataProvider::NewL - Exiting" ); |
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38 return self; |
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39 } |
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40 |
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41 // --------------------------------------------------------------------------- |
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42 // CIRDataProvider::NewL(MIRDataProviderObserver& aObserver) |
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43 // Creates instance of CIRDataProvider. |
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44 // --------------------------------------------------------------------------- |
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45 // |
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46 EXPORT_C CIRDataProvider *CIRDataProvider::NewL( |
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47 MIRDataProviderObserver &aObserver, const TDesC &aFileName ) |
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48 { |
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49 IRLOG_DEBUG( "CIRDataProvider::NewL(..., &aFileName) - Entering" ); |
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50 CIRDataProvider *self = NewLC( aObserver, aFileName ); |
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51 CleanupStack::Pop(self); |
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52 IRLOG_DEBUG( "CIRDataProvider::NewL(..., &aFileName) - Exiting." ); |
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53 return self; |
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54 } |
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55 |
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56 // --------------------------------------------------------------------------- |
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57 // CIRDataProvider::~CIRDataProvider() |
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58 // Destructs an instance of CIRDataProvider. |
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59 // --------------------------------------------------------------------------- |
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60 // |
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61 CIRDataProvider::~CIRDataProvider() // destruct - virtual, so no export |
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62 { |
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63 IRLOG_DEBUG( "CIRDataProvider::~CIRDataProvider() - Entering" ); |
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64 |
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65 if (iHttpDataProvider) |
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66 { |
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67 // Cancel any active transactions |
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68 iHttpDataProvider->CancelTransaction(); |
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69 // Destroy the data provider object |
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70 } |
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71 |
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72 delete iHttpDataProvider; |
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73 |
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74 if( iIRSettings ) |
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75 { |
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76 iIRSettings->Close(); |
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77 } |
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78 |
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79 if (iDataProviderTimer) |
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80 { |
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81 iDataProviderTimer->Cancel(); // Cancel the timer |
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82 } |
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83 |
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84 delete iDataProviderTimer; // Destroy the timer object |
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85 if( iResponseHeaders ) |
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86 { |
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87 delete iResponseHeaders; |
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88 } |
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89 iFile.Close(); |
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90 iFsSession.Close(); // Close the file server session |
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91 IRLOG_DEBUG( "CIRDataProvider::~CIRDataProvider() - Exiting" ); |
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92 } |
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93 |
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94 // General functions exported ( These are the API`s exposed )( HTTP ) |
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95 |
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96 // --------------------------------------------------------------------------- |
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97 // CIRDataProvider::IRHttpIssueRequest(TDesC8& aUri) |
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98 // Used to issue an Http request |
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99 // --------------------------------------------------------------------------- |
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100 // |
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101 EXPORT_C void CIRDataProvider::IRHttpIssueRequestL( |
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102 CIRHttpRequestData &aRequestObject ) |
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103 { |
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104 IRHttpCancelRequest(); |
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105 IRLOG_DEBUG( "CIRDataProvider::IRHttpIssueRequestL - Entering" ); |
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106 IRRDEBUG2("CIRDATAPROVIDER::IRHTTPISSUEREQUESTL",KNullDesC); |
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107 CIRHttpResponseData* newResponseHeaders = new ( ELeave ) CIRHttpResponseData; |
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108 delete iResponseHeaders; |
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109 iResponseHeaders = newResponseHeaders; |
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110 |
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111 |
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112 // Create or replace the file used to store xml response from iSDS |
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113 User::LeaveIfError(iFile.Replace( iFsSession, iXmlFilePath, EFileWrite )); |
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114 iHttpDataProvider->CancelTransaction(); |
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115 |
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116 TInt err = iHttpDataProvider->IssueHttpRequestL( aRequestObject ); |
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117 // Cancel the timer if active |
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118 iDataProviderTimer->Cancel(); |
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119 // Start the timer for timeout |
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120 iDataProviderTimer->After( iTimeOut ); |
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121 if ( err == KErrCouldNotConnect ) |
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122 { |
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123 // If error in IssueHttpRequest then close the open file |
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124 iFile.Close(); |
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125 iDataProviderTimer->Cancel(); |
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126 iDataProviderObserver.IRHttpGeneralError( err ); |
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127 // Cancel any possibly pending transactions |
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128 iHttpDataProvider->CancelTransaction(); |
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129 } |
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130 |
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131 IRLOG_DEBUG( "CIRDataProvider::IRHttpIssueRequestL - Exiting." ); |
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132 } |
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133 |
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134 |
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135 // --------------------------------------------------------------------------- |
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136 // CIRDataProvider::IRHttpCancelRequest() |
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137 // Used to cancel a request |
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138 // --------------------------------------------------------------------------- |
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139 // |
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140 EXPORT_C void CIRDataProvider::IRHttpCancelRequest() |
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141 { |
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142 IRLOG_DEBUG( "CIRDataProvider::IRHttpCancelRequest - Entering" ); |
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143 // Cancel the timer if active |
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144 iDataProviderTimer->Cancel(); |
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145 // Cancel any possibly pending transactions |
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146 iHttpDataProvider->CancelTransaction(); |
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147 // Close the file handle used to store the xml response |
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148 iFile.Close(); |
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149 IRLOG_DEBUG( "CIRDataProvider::IRHttpCancelRequest - Exiting." ); |
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150 } |
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151 |
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152 |
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153 // --------------------------------------------------------------------------- |
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154 // CIRDataProvider::ReleaseResources() |
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155 // Used to release the resources held by the IRHttpDataProvider |
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156 // --------------------------------------------------------------------------- |
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157 // |
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158 EXPORT_C void CIRDataProvider::ReleaseResources() |
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159 { |
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160 IRLOG_DEBUG( "CIRDataProvider::ReleaseResources - Entering" ); |
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161 // Release the resources held by the IRHttpDataProvider |
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162 iHttpDataProvider->ReleaseResources(); |
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163 IRLOG_DEBUG( "CIRDataProvider::ReleaseResources - Exiting" ); |
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164 } |
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165 |
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166 |
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167 //These are the callback functions used by CIRHttpDataProvider to |
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168 //provide the CIRDataProvider with the data after processing the |
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169 //HTTP request. |
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170 |
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171 // --------------------------------------------------------------------------- |
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172 // CIRDataProvider::HttpEventComplete() |
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173 // Used to Indicate to the observer that the request event has completed |
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174 // --------------------------------------------------------------------------- |
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175 // |
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176 void CIRDataProvider::HttpEventComplete() |
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177 { |
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178 IRLOG_DEBUG( "CIRDataProvider::HttpEventComplete - Entering" ); |
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179 iFile.Close(); |
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180 iDataProviderTimer->Cancel(); |
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181 |
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182 // Need to take a member to a local variable, as the IRHttpDataReceived may initiate |
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183 // an IRHttpIssueRequestL() call, causing the headers to be replaced with empty ones, and |
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184 // causing crashes. |
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185 CIRHttpResponseData* currentHeaders = iResponseHeaders; |
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186 iResponseHeaders = NULL; // prevents the destructor to delete in case something streange happens. |
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187 iDataProviderObserver.IRHttpDataReceived( iXmlFilePath,*currentHeaders ); |
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188 |
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189 delete currentHeaders; |
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190 IRLOG_DEBUG( "CIRDataProvider::HttpEventComplete - Exiting." ); |
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191 } |
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192 |
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193 |
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194 void CIRDataProvider::ExtractHeaderValue(const TDesC8& aHeaderData,const |
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195 TDesC8& aHeaderName,const TDesC8& aDelimeter,TDes8& aHolder) const |
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196 { |
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197 IRLOG_DEBUG( "CIRDataProvider::ExtractHeaderValue - Entering" ); |
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198 TInt position = aHeaderData.Find(aHeaderName); |
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199 if( position >= 0) |
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200 { |
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201 TPtrC8 headerValue = aHeaderData.Mid(position); |
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202 TInt delimeterPosition = headerValue.Find(aDelimeter); |
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203 if( delimeterPosition != KErrNotFound ) |
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204 { |
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205 delimeterPosition++; |
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206 TPtrC8 value = headerValue.Mid(delimeterPosition); |
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207 aHolder.Copy(value); |
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208 aHolder.TrimAll(); |
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209 } |
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210 } |
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211 IRLOG_DEBUG( "CIRDataProvider::ExtractHeaderValue - Exiting." ); |
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212 } |
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213 |
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214 |
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215 // --------------------------------------------------------------------------- |
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216 // CIRDataProvider::HttpHeaderReceived( const TDesC8& aHeaderData ) |
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217 // Used by CIRHttpDataProvider to indicate that an HTTP header is received. |
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218 // --------------------------------------------------------------------------- |
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219 // |
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220 void CIRDataProvider::HttpHeaderReceived( const TDesC8& aHeaderData ) |
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221 { |
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222 IRLOG_DEBUG( "CIRDataProvider::HttpHeaderReceived - Entering." ); |
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223 _LIT8(KDelim,":"); |
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224 _LIT8(KContentType,"Content-Type"); |
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225 ExtractHeaderValue(aHeaderData,KContentType,KDelim,iResponseHeaders-> |
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226 iContentType); |
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227 _LIT8(KMaxAge,"max-age"); |
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228 _LIT8(KDelimEqual,"="); |
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229 ExtractHeaderValue(aHeaderData,KMaxAge,KDelimEqual,iResponseHeaders-> |
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230 iMaxAge); |
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231 _LIT8(KContentLength,"Content-Length"); |
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232 ExtractHeaderValue(aHeaderData,KContentLength,KDelim,iResponseHeaders-> |
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233 iContentLength); |
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234 _LIT8(KExpires,"Expires"); |
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235 ExtractHeaderValue(aHeaderData,KExpires,KDelim,iResponseHeaders->iExpires); |
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236 IRLOG_DEBUG( "CIRDataProvider::HttpHeaderReceived - Exiting." ); |
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237 } |
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238 |
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239 |
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240 void CIRDataProvider::HttpDateHeaderReceived(const TDesC8 &aHeader, |
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241 const TTime& aTime ) |
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242 { |
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243 IRLOG_DEBUG( "CIRDataProvider::HttpDateHeaderReceived - Entering." ); |
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244 _LIT8(KDate,"Date"); |
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245 _LIT8(KLastModified,"Last-Modified"); |
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246 TInt position = aHeader.Find(KDate); |
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247 if( position != KErrNotFound ) |
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248 { |
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249 iResponseHeaders->iDate = aTime; |
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250 //find the difference between device time and response time |
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251 //and storing the offset |
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252 SetOffsetSeconds( aTime ); |
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253 return ; |
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254 } |
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255 position = aHeader.Find(KLastModified); |
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256 if( position != KErrNotFound ) |
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257 { |
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258 iResponseHeaders->iLastModified = aTime; |
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259 } |
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260 IRLOG_DEBUG( "CIRDataProvider::HttpDateHeaderReceived - Exiting." ); |
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261 } |
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262 |
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263 |
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264 |
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265 // --------------------------------------------------------------------------- |
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266 // CIRDataProvider::HttpBodyReceived( const TDesC8& aBodyData ) |
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267 // Used by CIRHttpDataProvider to indicate that an HTTP response body |
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268 // is received. |
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269 // --------------------------------------------------------------------------- |
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270 // |
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271 void CIRDataProvider::HttpBodyReceived( const TDesC8 &aBodyData ) |
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272 { |
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273 IRLOG_DEBUG( "CIRDataProvider::HttpBodyReceived - Entering" ); |
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274 TInt FileWritePos = 0; |
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275 iFile.Seek( ESeekEnd, FileWritePos ); |
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276 iFile.Write( FileWritePos, aBodyData ); |
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277 IRLOG_DEBUG( "CIRDataProvider::HttpBodyReceived - Exiting." ); |
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278 } |
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279 |
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280 // --------------------------------------------------------------------------- |
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281 // CIRDataProvider::HttpTransactionError(TInt aErrCode) |
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282 // Used by CIRHttpDataProvider to indicate that a HTTP Transaction error |
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283 // has occured. |
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284 // --------------------------------------------------------------------------- |
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285 // |
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286 void CIRDataProvider::HttpTransactionError( TInt aErrCode ) |
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287 { |
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288 IRLOG_DEBUG( "CIRDataProvider::HttpTransactionError - Entering" ); |
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289 iFile.Close(); |
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290 iDataProviderTimer->Cancel(); |
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291 iDataProviderObserver.IRHttpGeneralError( aErrCode ); |
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292 // Cancel any possibly pending transactions |
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293 iHttpDataProvider->CancelTransaction(); |
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294 IRLOG_DEBUG( "CIRDataProvider::HttpTransactionError - Exiting." ); |
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295 } |
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296 |
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297 // --------------------------------------------------------------------------- |
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298 // CIRDataProvider::HttpResponseCodeRecieved(TInt aResponseCode) |
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299 // Used by CIRHttpDataProvider to indicate to the iSDS Client that a |
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300 // 304 Not Changed response received |
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301 // Note: Implemented in version 0.2 |
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302 // --------------------------------------------------------------------------- |
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303 // |
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304 void CIRDataProvider::HttpResponseCodeRecieved( TInt aResponseCode ) |
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305 { |
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306 IRLOG_DEBUG( "CIRDataProvider::HttpResponseCodeRecieved - Entering" ); |
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307 iDataProviderObserver.IRHttpResponseCodeReceived( aResponseCode, *iResponseHeaders ); |
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308 IRLOG_DEBUG( "CIRDataProvider::HttpResponseCodeRecieved- Exiting" ); |
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309 } |
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310 |
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311 // constructor support |
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312 // don't export these, because used only by functions in this DLL |
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313 // --------------------------------------------------------------------------- |
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314 // CIRDataProvider::CIRDataProvider(MIRDataProviderObserver& aObserver): |
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315 // iDataProviderObserver(aObserver) |
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316 // Default Constructor |
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317 // --------------------------------------------------------------------------- |
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318 // |
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319 void CIRDataProvider::TimerExpired() |
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320 { |
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321 IRLOG_INFO( "CIRDataProvider::TimerExpired - Entering" ); |
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322 IRHttpCancelRequest(); |
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323 HttpTransactionError( KDataProviderTimeout ); |
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324 IRLOG_INFO( "CIRDataProvider::TimerExpired - Exiting" ); |
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325 } |
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326 |
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327 |
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328 |
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329 CIRDataProvider::CIRDataProvider( MIRDataProviderObserver &aObserver ): |
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330 iDataProviderObserver( aObserver ) // first-phase C++ constructor |
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331 { |
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332 IRLOG_INFO( "CIRDataProvider::CIRDataProvider" ); |
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333 // Definition not required |
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334 } |
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335 |
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336 // --------------------------------------------------------------------------- |
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337 // void CIRDataProvider::ConstructL() |
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338 // 2nd Phase construction |
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339 // --------------------------------------------------------------------------- |
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340 // |
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341 void CIRDataProvider::ConstructL() // second-phase constructor |
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342 { |
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343 IRLOG_DEBUG( "CIRDataProvider::ConstructL - Entering" ); |
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344 _LIT( KXmlFile, "iSdsResponse.xml" ); |
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345 ConstructL(KXmlFile); |
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346 iHttpDataProvider->iSetNonUAProfUserAgent = EFalse; |
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347 IRLOG_DEBUG( "CIRDataProvider::ConstructL - Exiting" ); |
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348 } |
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349 |
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350 // --------------------------------------------------------------------------- |
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351 // void CIRDataProvider::ConstructL(TDesC& aFilePath) |
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352 // 2nd Phase construction |
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353 // --------------------------------------------------------------------------- |
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354 // |
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355 void CIRDataProvider::ConstructL( const TDesC &aFileName ) |
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356 { |
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357 IRLOG_DEBUG( "CIRDataProvider::ConstructL(const TDesC &aFileName) - Entering" ); |
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358 iHttpDataProvider = CIRHttpDataProvider::NewL( *this ); |
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359 iDataProviderTimer = CIRDataProviderTimer::NewL( EPriorityHigh, *this ); |
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360 User::LeaveIfError(iFsSession.Connect()); |
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361 iIRSettings = CIRSettings::OpenL(); |
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362 iXmlFilePath = iIRSettings->PrivatePath(); |
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363 iXmlFilePath.Append( aFileName ); |
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364 iTimeOut = iIRSettings->GetTimeOut(); |
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365 iHttpDataProvider->iSetNonUAProfUserAgent = ETrue; |
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366 IRLOG_DEBUG( "CIRDataProvider::ConstructL(const TDesC &aFileName) - Exiting." ); |
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367 } |
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368 |
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369 |
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370 |
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371 // --------------------------------------------------------------------------- |
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372 // CIRDataProvider::NewLC(MIRDataProviderObserver& aObserver) |
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373 // Creates instance of CIRDataProvider. |
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374 // --------------------------------------------------------------------------- |
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375 // |
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376 CIRDataProvider *CIRDataProvider::NewLC( MIRDataProviderObserver &aObserver ) |
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377 { |
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378 IRLOG_DEBUG( "CIRDataProvider::NewLC - Entering." ); |
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379 CIRDataProvider *self = new( ELeave )CIRDataProvider( aObserver ); |
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380 CleanupStack::PushL( self ); |
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381 self->ConstructL(); |
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382 IRLOG_DEBUG( "CIRDataProvider::NewLC - Exiting." ); |
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383 return self; |
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384 } |
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385 |
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386 // --------------------------------------------------------------------------- |
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387 // CIRDataProvider::NewLC(MIRDataProviderObserver& aObserver) |
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388 // Creates instance of CIRDataProvider. |
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389 // --------------------------------------------------------------------------- |
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390 // |
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391 CIRDataProvider *CIRDataProvider::NewLC( MIRDataProviderObserver &aObserver, |
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392 const TDesC &aFileName ) |
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393 { |
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394 IRLOG_DEBUG( "CIRDataProvider::NewLC - Entering." ); |
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395 CIRDataProvider *self = new( ELeave )CIRDataProvider( aObserver ); |
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396 CleanupStack::PushL( self ); |
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397 self->ConstructL( aFileName ); |
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398 IRLOG_DEBUG( "CIRDataProvider::NewLC - Exiting." ); |
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399 return self; |
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400 } |
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401 |
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402 EXPORT_C CIRHttpDataProvider* CIRDataProvider::GetHttpDataProvider() |
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403 { |
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404 IRLOG_DEBUG( "CIRDataProvider::GetHttpDataProvider" ); |
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405 return iHttpDataProvider; |
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406 } |
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407 |
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408 // --------------------------------------------------------------------------- |
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409 // CIRDataProvider::SetOffsetSeconds( const TTime& aTime ) |
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410 // Stores the offset between device time and response header in settings |
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411 // --------------------------------------------------------------------------- |
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412 // |
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413 void CIRDataProvider::SetOffsetSeconds( const TTime& aTime ) |
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414 { |
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415 IRLOG_DEBUG( "CIRDataProvider::SetOffsetSeconds - Entering" ); |
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416 TTime currenttime; |
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417 //calculates the current time |
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418 currenttime.UniversalTime(); |
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419 //finds offset from isds response |
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420 TTimeIntervalSeconds offsetseconds; |
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421 //Find offset from isds response |
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422 TInt err = currenttime.SecondsFrom(aTime,offsetseconds); |
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423 if( err ) |
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424 { |
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425 //if error offsetseconds is set to zero |
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426 offsetseconds = 0; |
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427 } |
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428 //storing the offset value in setting |
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429 TRAP_IGNORE( iIRSettings->SetTimeCorrectionL(offsetseconds.Int()) ) |
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430 IRLOG_DEBUG( "CIRDataProvider::SetOffsetSeconds - Exiting." ); |
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431 } |
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432 |
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433 |