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1 /* |
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2 * Copyright (c) 2003 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: ConnHandler filter |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 // INCLUDE FILES |
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21 #include <http.h> |
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22 #include <es_sock.h> |
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23 |
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24 #include <ApEngineConsts.h> // defines bearer types |
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25 #include "httpfilterConnHandler.h" |
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26 |
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27 #include "HttpFilterConnHandlerObserverPS.h" |
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28 #include <PSVariables.h> // Publish & Subscribe |
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29 |
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30 #include "httpfiltercommonstringsext.h" |
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31 #include "mconnectioncallback.h" |
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32 |
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33 // uncomment for logging |
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34 //#include <flogger.h> |
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35 //_LIT(KDir, "connFilter"); |
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36 //_LIT(KFile, "filtererr.txt"); |
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37 |
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38 // EXTERNAL DATA STRUCTURES |
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39 |
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40 // EXTERNAL FUNCTION PROTOTYPES |
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41 void PanicHttpFiltersConnHandler(TInt aErr = 0); |
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42 |
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43 // CONSTANTS |
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44 const TInt KConnHandlerOrderOffset = 10; |
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45 |
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46 // MACROS |
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47 |
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48 // LOCAL CONSTANTS AND MACROS |
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49 |
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50 // MODULE DATA STRUCTURES |
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51 |
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52 // LOCAL FUNCTION PROTOTYPES |
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53 |
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54 // FORWARD DECLARATIONS |
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55 |
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56 // ============================= LOCAL FUNCTIONS =============================== |
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57 |
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58 // ----------------------------------------------------------------------------- |
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59 // LocalHostCheckL |
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60 // If the host is a local host. Returns ETrue |
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61 // if the transaction request URI was for a localhost. |
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62 // ----------------------------------------------------------------------------- |
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63 // |
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64 TBool LocalHostCheckL(RHTTPTransaction& aTransaction) |
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65 { |
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66 _LIT8(KLoopbackIPv4Url, "http://127.0.0.1"); |
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67 |
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68 RHTTPRequest request = aTransaction.Request(); |
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69 TUriC8 uri = request.URI(); |
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70 |
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71 TUriParser8 parserLoopBack; |
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72 parserLoopBack.Parse(KLoopbackIPv4Url()); |
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73 TInt match = parserLoopBack.Compare(uri, EUriHost); |
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74 |
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75 if (KErrNone != match) |
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76 { |
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77 _LIT8(KLocalHostUrl, "http://localhost"); |
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78 |
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79 // try another compare - compare against the "localhost". |
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80 TUriParser8 parserLocalHost; |
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81 parserLocalHost.Parse(KLocalHostUrl()); |
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82 match = parserLocalHost.Compare(uri, EUriHost); |
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83 |
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84 if (KErrNone == match) |
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85 { |
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86 _LIT8(KLoopbackIPv4, "127.0.0.1"); |
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87 |
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88 // "localhost" resolves to "::1", manually, replace with "127.0.0.1" |
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89 CUri8* newUri = CUri8::NewLC(uri); |
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90 newUri->SetComponentL(KLoopbackIPv4(), EUriHost); |
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91 request.SetURIL(newUri->Uri()); |
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92 CleanupStack::PopAndDestroy(newUri); |
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93 } |
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94 } |
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95 |
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96 if (KErrNone == match) |
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97 { |
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98 return ETrue; |
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99 } |
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100 return EFalse; |
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101 } |
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102 |
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103 // ============================ MEMBER FUNCTIONS =============================== |
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104 |
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105 // ----------------------------------------------------------------------------- |
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106 // CHttpFilterConnHandler::CHttpFilterConnHandler |
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107 // C++ default constructor can NOT contain any code, that |
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108 // might leave. |
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109 // ----------------------------------------------------------------------------- |
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110 // |
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111 CHttpFilterConnHandler::CHttpFilterConnHandler(RHTTPSession* aSession, MConnectionCallback* aConnCallback): |
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112 iConnCallback (aConnCallback) |
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113 { |
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114 __ASSERT_DEBUG(aConnCallback != NULL, PanicHttpFiltersConnHandler()); |
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115 __ASSERT_DEBUG(aSession != NULL, PanicHttpFiltersConnHandler()); |
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116 iSession = aSession; |
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117 } |
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118 |
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119 |
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120 // ------------------------------------------------------------------------------------------ |
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121 // CHttpFilterConnHandler::ConstructL |
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122 // Symbian 2nd phase constructor can leave. |
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123 // ------------------------------------------------------------------------------------------ |
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124 // |
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125 void CHttpFilterConnHandler::ConstructL() |
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126 { |
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127 // Register the filter for THTTPSessionEvent::EConnect events, |
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128 // Adds a filter to the session's filter queue. |
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129 iSession->FilterCollection().AddFilterL(*this, // The filter to add |
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130 THTTPSessionEvent::EConnect, // The event that triggers this filter |
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131 RStringF(), // The header whose presence triggers this filter, or KNullDesC to trigger on any header |
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132 KAnyStatusCode, // The status code that triggers this filter, or KAnyStatusCode to trigger on any status code |
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133 ECache - KConnHandlerOrderOffset, // The position of the filter in the queue |
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134 iSession->StringPool().StringF(HttpFilterCommonStringsExt::EConnHandlerFilter, |
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135 HttpFilterCommonStringsExt::GetTable())); //The name of the filter to add |
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136 |
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137 // Register the filter for submit events, |
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138 // Adds a filter to the session's filter queue. |
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139 iSession->FilterCollection().AddFilterL(*this, // The filter to add |
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140 THTTPEvent::ESubmit, // The event that triggers this filter |
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141 RStringF(), // The header whose presence triggers this filter, or KNullDesC to trigger on any header |
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142 KAnyStatusCode, // The status code that triggers this filter, or KAnyStatusCode to trigger on any status code |
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143 ECache - KConnHandlerOrderOffset, // The position of the filter in the queue |
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144 iSession->StringPool().StringF(HttpFilterCommonStringsExt::EConnHandlerFilter, |
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145 HttpFilterCommonStringsExt::GetTable())); //The name of the filter to add |
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146 |
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147 // Create an instance of the CHttpFilterConnHandlerObserver in order to handle "No coverage" situation |
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148 iObserver = CHttpFilterConnHandlerObserver::NewL(iConnCallback); |
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149 } |
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150 |
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151 //--------------------------------------------------------------------------------------------- |
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152 // Destructor |
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153 //---------------------------------------------------------------------------------------------- |
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154 // |
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155 CHttpFilterConnHandler::~CHttpFilterConnHandler() |
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156 { |
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157 delete iObserver; |
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158 } |
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159 |
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160 // --------------------------------------------------------------------------------------------- |
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161 // CHttpFilterConnHandler::InstallFilterL |
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162 // Two-phased constructor. This function replaces NewL. |
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163 // --------------------------------------------------------------------------------------------- |
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164 // |
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165 CHttpFilterConnHandler* CHttpFilterConnHandler::InstallFilterL(TAny* aParams) |
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166 { |
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167 __ASSERT_DEBUG(aParams != NULL, PanicHttpFiltersConnHandler()); |
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168 TConnParams* connParams = REINTERPRET_CAST(TConnParams*, aParams); |
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169 __ASSERT_DEBUG(connParams->iSession != NULL, PanicHttpFiltersConnHandler()); |
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170 __ASSERT_DEBUG(connParams->iConnCallback != NULL, PanicHttpFiltersConnHandler()); |
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171 |
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172 CHttpFilterConnHandler* filter = new (ELeave) CHttpFilterConnHandler( connParams->iSession, connParams->iConnCallback ); |
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173 CleanupStack::PushL(filter); |
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174 filter->ConstructL(); |
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175 CleanupStack::Pop(filter); |
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176 return filter; |
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177 } |
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178 |
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179 // --------------------------------------------------------------------------------------------- |
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180 // CHttpFilterConnHandler::MHFLoad |
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181 // Called when the filter is being added to the session's filter queue. |
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182 // --------------------------------------------------------------------------------------------- |
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183 // |
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184 void CHttpFilterConnHandler::MHFLoad(RHTTPSession, THTTPFilterHandle) |
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185 { |
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186 ++iLoadCount; |
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187 } |
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188 |
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189 // ---------------------------------------------------------------------------------------------- |
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190 // CHttpFilterConnHandler::MHFUnload |
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191 // Called when the filter is being removed from a session's filter queue. |
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192 // ---------------------------------------------------------------------------------------------- |
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193 // |
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194 void CHttpFilterConnHandler::MHFUnload(RHTTPSession /*aSession*/, THTTPFilterHandle /*aFilterHandler*/) |
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195 { |
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196 __ASSERT_DEBUG(iLoadCount >= 0, PanicHttpFiltersConnHandler()); |
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197 if (--iLoadCount) |
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198 { |
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199 return; |
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200 } |
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201 delete this; |
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202 } |
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203 |
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204 // ------------------------------------------------------------------------------------------------ |
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205 // CHttpFilterConnHandler::MHFRunL |
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206 // Process a transaction event. |
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207 // ------------------------------------------------------------------------------------------------ |
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208 // |
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209 void CHttpFilterConnHandler::MHFRunL(RHTTPTransaction aTransaction, |
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210 const THTTPEvent& aEvent) |
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211 { |
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212 TInt state = 0; |
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213 TInt gprsState = 0; |
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214 TInt wcdmaState = 0; |
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215 TApBearerType bearerType; |
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216 |
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217 if (aEvent.iStatus == THTTPEvent::ESubmit) |
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218 { |
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219 THTTPHdrVal isNewConn; |
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220 RHTTPConnectionInfo connInfo = iSession->ConnectionInfo(); |
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221 RStringPool strPool = aTransaction.Session().StringPool(); |
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222 TBool ret = connInfo.Property (strPool.StringF(HttpFilterCommonStringsExt::EHttpNewConnFlag, |
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223 HttpFilterCommonStringsExt::GetTable()), isNewConn); |
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224 |
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225 if ( LocalHostCheckL(aTransaction) && !( ret && isNewConn.Type() == THTTPHdrVal::KTIntVal ) ) |
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226 { |
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227 return; |
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228 } |
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229 |
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230 THTTPHdrVal callback; |
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231 RHTTPTransactionPropertySet propSet = aTransaction.PropertySet(); |
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232 RStringF callbackStr = strPool.StringF( HttpFilterCommonStringsExt::EConnectionCallback, |
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233 HttpFilterCommonStringsExt::GetTable() ); |
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234 |
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235 MConnectionCallback* callbackPtr = NULL; |
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236 |
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237 // this is a transaction, already forwarded to download manager |
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238 if( propSet.Property( callbackStr, callback ) ) |
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239 { |
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240 callbackPtr = REINTERPRET_CAST( MConnectionCallback*, callback.Int() ); |
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241 } |
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242 // make sure it is not null |
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243 callbackPtr = callbackPtr ? callbackPtr : iConnCallback; |
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244 |
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245 CreateConnectionL( &bearerType, callbackPtr ); |
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246 |
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247 iObserver->SetBearerTypeAndUid(bearerType); |
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248 // check if "No coverage" situation exists for the GPRS bearer |
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249 if (bearerType == EApBearerTypeGPRS) |
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250 { |
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251 // we sent request, so change Observer state to EActiveReady |
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252 iObserver->GetObserverState(state); |
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253 if (state == EIdle) |
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254 { |
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255 iObserver->GetStateL(KPSUidGprsStatusValue, gprsState); |
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256 iObserver->GetStateL(KPSUidWcdmaStatusValue, wcdmaState); |
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257 if (gprsState == EPSGprsSuspend && wcdmaState == EPSWcdmaSuspend) |
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258 { |
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259 // user sent request from "No coverage" area, so all outstanding transactions will |
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260 // be canceled in this case and user will be notified. |
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261 callbackPtr->CoverageEvent(EErrNetUnreach); |
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262 } |
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263 else |
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264 { |
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265 iObserver->SetObserverState(EActiveReady); |
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266 } |
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267 } |
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268 } |
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269 else if(bearerType == EApBearerTypeCDMA) |
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270 { |
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271 // we sent request, so change Observer state to EActiveReady |
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272 iObserver->GetObserverState(state); |
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273 if (state == EIdle) |
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274 { |
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275 iObserver->GetStateL(KPSUidWcdmaStatusValue, wcdmaState); |
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276 if (wcdmaState == EPSWcdmaSuspend && gprsState == EPSGprsSuspend) //this should not meet all the time. |
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277 { |
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278 // user sent request from "No coverage" area, so all outstanding transactions will |
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279 // be canceled in this case and user will be notified. |
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280 callbackPtr->CoverageEvent(EErrNetUnreach); |
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281 } |
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282 else |
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283 { |
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284 iObserver->SetObserverState(EActiveReady); |
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285 } |
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286 } |
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287 } |
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288 } |
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289 } |
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290 |
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291 // ----------------------------------------------------------------------------- |
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292 // CHttpFilterConnHandler::MHFRunError |
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293 // Process an error that occured while processing the transaction. |
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294 // ----------------------------------------------------------------------------- |
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295 // |
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296 TInt CHttpFilterConnHandler::MHFRunError(TInt , |
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297 RHTTPTransaction aTransaction, |
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298 const THTTPEvent& ) |
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299 { |
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300 aTransaction.Cancel(); |
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301 return KErrNone; |
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302 } |
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303 |
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304 // ----------------------------------------------------------------------------- |
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305 // CHttpFilterConnHandler::MHFSessionRunL |
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306 // Process a session event. |
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307 // ----------------------------------------------------------------------------- |
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308 // |
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309 void CHttpFilterConnHandler::MHFSessionRunL(const THTTPSessionEvent& aEvent) |
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310 { |
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311 TApBearerType bearerType; |
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312 |
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313 if (aEvent.iStatus == THTTPSessionEvent::EConnect) |
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314 { |
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315 CreateConnectionL(&bearerType, iConnCallback ); |
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316 } |
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317 } |
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318 |
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319 // ----------------------------------------------------------------------------- |
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320 // CHttpFilterConnHandler::MHFSessionRunError |
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321 // Called when MHFRunL leaves from a session event. |
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322 // ----------------------------------------------------------------------------- |
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323 // |
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324 TInt CHttpFilterConnHandler::MHFSessionRunError(TInt aError, const THTTPSessionEvent& /*aEvent*/) |
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325 { |
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326 return aError; |
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327 } |
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328 |
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329 // ----------------------------------------------------------------------------- |
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330 // CHttpFilterConnHandler::GetObserver |
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331 // Access method |
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332 // ----------------------------------------------------------------------------- |
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333 // |
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334 void CHttpFilterConnHandler::GetObserver(CHttpFilterConnHandlerObserver*& aObserver) |
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335 { |
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336 aObserver = iObserver; |
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337 } |
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338 |
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339 |
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340 // ----------------------------------------------------------------------------- |
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341 // CHttpFilterConnHandler::CreateConnection |
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342 // Function to handle Submit events. |
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343 // Set proxy properties (EUseProxy and EProxyAddress) in order to get connected throught |
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344 // proxy when a new HTTP session will be in effect. The Proxy data will be taken from |
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345 // the CommDb if a new connection has been used. |
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346 // ----------------------------------------------------------------------------- |
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347 // |
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348 void CHttpFilterConnHandler::CreateConnectionL( |
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349 TApBearerType* bearerType, |
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350 MConnectionCallback* aCallbackPtr ) |
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351 { |
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352 RStringPool stringPool = iSession->StringPool(); |
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353 RHTTPConnectionInfo connInfo = iSession->ConnectionInfo(); |
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354 |
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355 // pointer to RConnection typecasted as TInt |
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356 TInt connectionPtr = 0; |
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357 // handle to the socket server |
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358 TInt sockSvrHandle = 0; |
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359 // flag of a new connection |
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360 TBool newConn = ETrue; |
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361 |
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362 TInt error = aCallbackPtr->CreateConnection(&connectionPtr, &sockSvrHandle, &newConn, bearerType); |
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363 |
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364 // Possible causes to leave are: KErrCommsLineFail (NW_STAT_CONN_FAILED), KErrCancel (NW_STAT_CANCELLED) |
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365 if (error != KErrNone) |
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366 { |
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367 User::LeaveIfError( error ); |
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368 } |
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369 |
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370 // Remove the properties if they were set before, before setting them again |
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371 connInfo.RemoveProperty(stringPool.StringF(HTTP::EHttpSocketConnection, |
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372 RHTTPSession::GetTable())); |
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373 connInfo.RemoveProperty(stringPool.StringF(HTTP::EHttpSocketServ, |
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374 RHTTPSession::GetTable())); |
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375 connInfo.RemoveProperty(stringPool.StringF(HttpFilterCommonStringsExt::EHttpNewConnFlag, |
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376 HttpFilterCommonStringsExt::GetTable())); |
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377 |
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378 |
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379 // Add the properties only if there is valid connection and socket server handler |
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380 if (connectionPtr != NULL && sockSvrHandle != 0) |
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381 { |
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382 connInfo.SetPropertyL(stringPool.StringF(HTTP::EHttpSocketConnection, |
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383 RHTTPSession::GetTable()), THTTPHdrVal(connectionPtr)); |
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384 // Set socket server handle |
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385 connInfo.SetPropertyL(stringPool.StringF(HTTP::EHttpSocketServ, |
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386 RHTTPSession::GetTable()), THTTPHdrVal((TInt)sockSvrHandle)); |
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387 // Set aNewConn flag |
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388 connInfo.SetPropertyL(stringPool.StringF(HttpFilterCommonStringsExt::EHttpNewConnFlag, |
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389 HttpFilterCommonStringsExt::GetTable()), THTTPHdrVal((TBool)newConn)); |
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390 } |
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391 } |
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392 |
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393 // End of File |
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394 |