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1 /* |
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2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Implementation of UPnP GStreamer wrapper |
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15 * |
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16 */ |
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17 |
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18 // INCLUDES |
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19 #include <xml/parser.h> |
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20 #include <xml/parserfeature.h> |
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21 #include <xml/matchdata.h> |
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22 #include <xml/xmlparsererrors.h> |
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23 #include <f32file.h> |
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24 #include <s32file.h> |
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25 #include <upnpaction.h> |
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26 #include <upnpstring.h> |
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27 |
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28 #include "upnprenderercfg.h" |
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29 #include "upnprenderercfgparser.h" |
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30 |
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31 _LIT( KComponentLogfile, "upnprenderercfgparser.txt"); |
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32 #include "upnplog.h" |
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33 |
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34 #define __FUNC_LOG __LOG8_1( "%s", __PRETTY_FUNCTION__ ); |
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35 |
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36 //tags |
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37 _LIT8( KTranscoding, "transcoding" ); |
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38 _LIT8( KPipeline, "pipeline" ); |
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39 _LIT8( KProtocolInfo, "protocolInfo" ); |
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40 _LIT8( KSizeMultiplier, "sizeMultiplier" ); |
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41 _LIT8( KRenderer, "renderer" ); |
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42 _LIT8( KConfig, "config" ); |
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43 |
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44 //attributes |
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45 _LIT8( KExactMatch, "exactMatch" ); |
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46 _LIT8( KModelName, "modelName" ); |
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47 _LIT8( KSrcMimeType, "srcMimeType" ); |
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48 |
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49 _LIT8( KFalse, "0" ); |
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50 |
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51 _LIT8( KXmlMimeType, "text/xml" ); |
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52 _LIT8( KLIB2XML, "libxml2" ); |
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53 |
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54 const TUint8 KCharSpace = 32; // Space |
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55 const TUint8 KCharDel = 127; // DEL |
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56 |
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57 using namespace Xml; |
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58 |
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59 // -------------------------------------------------------------------------- |
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60 // CUpnpRendererCfgParser::NewL() |
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61 // (See comments in header file) |
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62 // -------------------------------------------------------------------------- |
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63 // |
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64 EXPORT_C CUpnpRendererCfgParser* CUpnpRendererCfgParser::NewL() |
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65 { |
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66 __FUNC_LOG; |
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67 |
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68 CUpnpRendererCfgParser* self = CUpnpRendererCfgParser::NewLC(); |
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69 CleanupStack::Pop( self ); |
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70 return self; |
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71 } |
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72 |
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73 // -------------------------------------------------------------------------- |
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74 // CUpnpRendererCfgParser::NewLC() |
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75 // (See comments in header file) |
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76 // -------------------------------------------------------------------------- |
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77 // |
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78 EXPORT_C CUpnpRendererCfgParser* CUpnpRendererCfgParser::NewLC() |
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79 { |
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80 __FUNC_LOG; |
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81 |
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82 CUpnpRendererCfgParser* self = new( ELeave ) CUpnpRendererCfgParser(); |
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83 CleanupStack::PushL( self ); |
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84 self->ConstructL(); |
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85 return self; |
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86 } |
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87 |
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88 // -------------------------------------------------------------------------- |
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89 // CUpnpRendererCfgParser::~CUpnpRendererCfgParser() |
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90 // (See comments in header file) |
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91 // -------------------------------------------------------------------------- |
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92 // |
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93 EXPORT_C CUpnpRendererCfgParser::~CUpnpRendererCfgParser() |
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94 { |
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95 __FUNC_LOG; |
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96 |
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97 delete iParser; |
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98 delete iMatchData; |
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99 |
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100 iFs.Close(); |
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101 } |
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102 |
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103 // -------------------------------------------------------------------------- |
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104 // CUpnpRendererCfgParser::CUpnpRendererCfgParser() |
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105 // (See comments in header file) |
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106 // -------------------------------------------------------------------------- |
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107 // |
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108 CUpnpRendererCfgParser::CUpnpRendererCfgParser() |
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109 : iSizeMultiplier( KErrNotFound ) |
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110 { |
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111 __FUNC_LOG; |
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112 // No implementation needed |
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113 } |
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114 |
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115 // -------------------------------------------------------------------------- |
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116 // CUpnpRendererCfgParser::ConstructL() |
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117 // (See comments in header file) |
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118 // -------------------------------------------------------------------------- |
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119 // |
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120 void CUpnpRendererCfgParser::ConstructL() |
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121 { |
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122 __FUNC_LOG; |
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123 |
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124 iMatchData = CMatchData::NewL(); |
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125 iMatchData->SetMimeTypeL( KXmlMimeType ); |
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126 iMatchData->SetVariantL( KLIB2XML ); |
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127 iParser = CParser::NewL( *iMatchData, *this ); |
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128 iParser->EnableFeature( ESendFullContentInOneChunk ); |
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129 |
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130 User::LeaveIfError( iFs.Connect() ); |
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131 } |
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132 |
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133 // -------------------------------------------------------------------------- |
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134 // CUpnpRendererCfgParser::ParseRendererCfgL() |
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135 // (See comments in header file) |
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136 // -------------------------------------------------------------------------- |
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137 // |
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138 EXPORT_C void CUpnpRendererCfgParser::ParseRendererCfgL( |
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139 CUpnpRendererCfg& aRendereConfig ) |
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140 { |
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141 __FUNC_LOG; |
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142 |
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143 if( aRendereConfig.iPipeline || |
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144 aRendereConfig.iProtocolInfo || |
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145 aRendereConfig.iSizeMultiplier != KErrNotFound ) |
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146 { |
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147 //these values should be still untouched |
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148 User::Leave( KErrArgument ); |
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149 } |
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150 |
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151 iModelName = aRendereConfig.iModelName; |
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152 iSrcMimeType = aRendereConfig.iSrcMimeType; |
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153 |
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154 //syncronous call -> returns when the file is fully parsed |
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155 XMLParseL( *aRendereConfig.iConfigFile ); |
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156 |
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157 if( !iPipeline || !iProtocolInfo || iSizeMultiplier == KErrNotFound ) |
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158 { |
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159 __LOG8_1( "Couldn't find all the config elements for %S", |
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160 iModelName ); |
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161 |
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162 //delete allocated bufs and reset vars |
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163 delete iPipeline; iPipeline = NULL; |
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164 delete iProtocolInfo; iProtocolInfo = NULL; |
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165 |
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166 //make sure that everything is in init state |
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167 Reset(); |
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168 |
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169 User::Leave( KErrNotFound ); |
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170 } |
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171 |
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172 aRendereConfig.iPipeline = iPipeline; //ownership transfer |
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173 aRendereConfig.iProtocolInfo = iProtocolInfo; //ownership transfer |
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174 aRendereConfig.iSizeMultiplier = iSizeMultiplier; |
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175 |
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176 //make sure that everything is in init state |
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177 Reset(); |
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178 } |
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179 |
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180 // -------------------------------------------------------------------------- |
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181 // CUpnpRendererCfgParser::XMLParseL() |
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182 // (See comments in header file) |
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183 // -------------------------------------------------------------------------- |
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184 // |
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185 void CUpnpRendererCfgParser::XMLParseL( const TDesC& aFile ) |
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186 { |
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187 __FUNC_LOG; |
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188 |
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189 RFile file; |
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190 User::LeaveIfError( file.Open( iFs, aFile , EFileRead ) ); |
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191 CleanupClosePushL( file ); |
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192 |
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193 TInt size; |
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194 User::LeaveIfError( file.Size( size ) ); |
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195 |
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196 HBufC8* buf = HBufC8::NewLC( size ); |
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197 TPtr8 ptr = buf->Des(); |
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198 User::LeaveIfError( file.Read( ptr ) ); |
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199 |
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200 Xml::ParseL( *iParser, *buf ); |
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201 |
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202 CleanupStack::PopAndDestroy( buf ); |
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203 CleanupStack::PopAndDestroy( &file ); |
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204 } |
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205 |
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206 // -------------------------------------------------------------------------- |
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207 // CUpnpRendererCfgParser::Reset() |
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208 // (See comments in header file) |
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209 // -------------------------------------------------------------------------- |
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210 // |
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211 void CUpnpRendererCfgParser::Reset() |
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212 { |
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213 __FUNC_LOG; |
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214 |
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215 iCurrentElement = EUnknown; |
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216 iCorrectModel = EFalse; |
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217 iCorrectTranscoding = EFalse; |
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218 iModelName = NULL; |
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219 iSrcMimeType = NULL; |
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220 iPipeline = NULL; |
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221 iProtocolInfo = NULL; |
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222 iSizeMultiplier = KErrNotFound; |
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223 } |
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224 |
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225 // -------------------------------------------------------------------------- |
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226 // CUpnpRendererCfgParser::Element() |
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227 // (See comments in header file) |
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228 // -------------------------------------------------------------------------- |
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229 // |
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230 CUpnpRendererCfgParser::TCfgElements CUpnpRendererCfgParser::Element( |
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231 const RTagInfo& aElement ) |
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232 { |
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233 __FUNC_LOG; |
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234 |
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235 TCfgElements element = EUnknown; |
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236 |
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237 const TDesC8& desName = aElement.LocalName().DesC(); |
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238 |
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239 if( desName.CompareF( KTranscoding ) == 0 ) |
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240 { |
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241 element = ETranscoding; |
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242 } |
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243 else if( desName.CompareF( KPipeline ) == 0 ) |
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244 { |
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245 element = EPipeline; |
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246 } |
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247 else if( desName.CompareF( KProtocolInfo ) == 0 ) |
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248 { |
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249 element = EProtocolInfo; |
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250 } |
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251 else if( desName.CompareF( KSizeMultiplier ) == 0 ) |
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252 { |
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253 element = ESizeMultiplier; |
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254 } |
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255 else if( desName.CompareF( KRenderer ) == 0 ) |
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256 { |
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257 element = ERenderer; |
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258 } |
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259 else if( desName.CompareF( KConfig ) == 0 ) |
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260 { |
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261 element = EConfig; |
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262 } |
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263 else |
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264 { |
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265 __LOG8_1( "Error: Unknown element %S", &desName ); |
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266 __ASSERT( EFalse, __FILE__, __LINE__ ); |
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267 } |
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268 |
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269 return element; |
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270 } |
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271 |
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272 // -------------------------------------------------------------------------- |
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273 // CUpnpRendererCfgParser::ContainsAttribute() |
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274 // (See comments in header file) |
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275 // -------------------------------------------------------------------------- |
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276 // |
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277 TBool CUpnpRendererCfgParser::ContainsAttribute( |
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278 const RAttributeArray& aAttributes, const TDesC8& aAttributeName, |
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279 const TDesC8& aAttributeValue, TBool aExactValueMatch ) |
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280 { |
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281 __FUNC_LOG; |
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282 |
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283 TInt attributeCount = aAttributes.Count(); |
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284 for( TInt i = 0; i < attributeCount; i++ ) |
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285 { |
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286 Xml::RAttribute attr = aAttributes[i]; |
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287 |
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288 if( attr.Attribute().LocalName().DesC() == aAttributeName ) |
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289 { |
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290 if( aExactValueMatch ) |
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291 { |
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292 if( aAttributeValue.CompareF( attr.Value().DesC() ) == 0 ) |
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293 { |
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294 //requested exact value match found |
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295 return ETrue; |
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296 } |
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297 } |
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298 else if( aAttributeValue.FindF( attr.Value().DesC() ) >= 0 ) |
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299 { |
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300 //requested non-exact value match (sub-string) found |
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301 return ETrue; |
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302 } |
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303 } |
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304 } |
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305 |
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306 return EFalse; |
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307 } |
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308 |
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309 // -------------------------------------------------------------------------- |
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310 // CUpnpRendererCfgParser::OnStartDocumentL() |
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311 // (See comments in header file) |
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312 // -------------------------------------------------------------------------- |
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313 // |
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314 void CUpnpRendererCfgParser::OnStartDocumentL( |
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315 const RDocumentParameters& /*aDocParam*/, |
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316 TInt /*aErrorCode*/ ) |
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317 { |
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318 __FUNC_LOG; |
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319 |
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320 // No implementation needed |
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321 } |
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322 |
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323 // -------------------------------------------------------------------------- |
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324 // CUpnpRendererCfgParser::OnEndDocumentL() |
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325 // (See comments in header file) |
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326 // -------------------------------------------------------------------------- |
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327 // |
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328 void CUpnpRendererCfgParser::OnEndDocumentL( TInt /*aErrorCode*/ ) |
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329 { |
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330 __FUNC_LOG; |
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331 |
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332 // No implementation needed |
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333 } |
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334 |
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335 // -------------------------------------------------------------------------- |
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336 // CUpnpRendererCfgParser::OnStartElementL() |
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337 // (See comments in header file) |
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338 // -------------------------------------------------------------------------- |
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339 // |
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340 void CUpnpRendererCfgParser::OnStartElementL( const RTagInfo& aElement, |
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341 const RAttributeArray& aAttributes, TInt aErrorCode ) |
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342 { |
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343 __FUNC_LOG; |
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344 __ASSERT( !aErrorCode, __FILE__, __LINE__ ); |
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345 |
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346 iCurrentElement = Element( aElement ); |
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347 |
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348 switch( iCurrentElement ) |
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349 { |
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350 case EConfig: //fall through |
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351 case EPipeline: //fall through |
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352 case EProtocolInfo: //fall through |
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353 case ESizeMultiplier: |
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354 { |
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355 break; |
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356 } |
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357 case ERenderer: |
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358 { |
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359 TBool exactMatch = ETrue; |
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360 if( ContainsAttribute( aAttributes, KExactMatch, KFalse, |
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361 ETrue ) ) |
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362 { |
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363 exactMatch = EFalse; |
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364 } |
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365 |
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366 if( ContainsAttribute( aAttributes, KModelName, *iModelName, |
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367 exactMatch ) ) |
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368 { |
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369 iCorrectModel = ETrue; |
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370 } |
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371 else |
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372 { |
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373 iCorrectModel = EFalse; |
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374 } |
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375 break; |
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376 } |
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377 case ETranscoding: |
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378 { |
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379 if( iCorrectModel && |
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380 ContainsAttribute( aAttributes, KSrcMimeType, *iSrcMimeType, |
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381 ETrue ) ) |
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382 { |
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383 // correct transcoding found |
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384 // -> assert if something is already set |
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385 __ASSERT( !iPipeline, __FILE__, __LINE__ ); |
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386 __ASSERT( !iProtocolInfo, __FILE__, __LINE__ ); |
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387 __ASSERT( iSizeMultiplier == KErrNotFound, __FILE__, |
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388 __LINE__ ); |
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389 |
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390 iCorrectTranscoding = ETrue; |
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391 } |
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392 break; |
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393 } |
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394 default: |
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395 { |
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396 __ASSERT( EFalse, __FILE__, __LINE__ ); |
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397 } |
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398 } |
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399 } |
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400 |
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401 // -------------------------------------------------------------------------- |
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402 // CUpnpRendererCfgParser::OnEndElementL() |
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403 // (See comments in header file) |
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404 // -------------------------------------------------------------------------- |
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405 // |
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406 void CUpnpRendererCfgParser::OnEndElementL( const RTagInfo& aElement, |
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407 TInt /*aErrorCode*/ ) |
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408 { |
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409 __FUNC_LOG; |
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410 |
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411 if( iCurrentElement == EUnknown ) |
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412 { |
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413 //at least second OnEndElementL callback in a row -> fetch enum |
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414 iCurrentElement = Element( aElement ); |
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415 } |
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416 |
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417 switch( iCurrentElement ) |
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418 { |
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419 case EPipeline: //fall through |
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420 case EProtocolInfo: //fall through |
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421 case ESizeMultiplier: |
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422 { |
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423 break; |
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424 } |
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425 case EUnknown: //fall through |
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426 case EConfig: //fall through |
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427 case ERenderer: |
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428 { |
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429 iCorrectModel = EFalse; |
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430 //fall through |
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431 } |
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432 case ETranscoding: |
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433 { |
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434 iCorrectTranscoding = EFalse; |
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435 break; |
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436 } |
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437 default: |
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438 { |
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439 __ASSERT( EFalse, __FILE__, __LINE__ ); |
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440 } |
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441 } |
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442 |
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443 //exiting from element -> reset current element |
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444 iCurrentElement = EUnknown; |
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445 } |
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446 |
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447 // -------------------------------------------------------------------------- |
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448 // CUpnpRendererCfgParser::OnContentL() |
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449 // (See comments in header file) |
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450 // -------------------------------------------------------------------------- |
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451 // |
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452 void CUpnpRendererCfgParser::OnContentL( const TDesC8& aBytes, |
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453 TInt aErrorCode ) |
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454 { |
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455 __FUNC_LOG; |
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456 __ASSERT( !aErrorCode, __FILE__, __LINE__ ); |
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457 |
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458 TUint8 firstChar = aBytes[0]; |
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459 if( firstChar <= KCharSpace || firstChar == KCharDel ) |
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460 { |
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461 //1st char of the content is a special char -> skip |
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462 return; |
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463 } |
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464 |
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465 switch( iCurrentElement ) |
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466 { |
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467 case EConfig: //fall through |
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468 case ERenderer: //fall through |
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469 case ETranscoding: |
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470 break; |
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471 case EPipeline: |
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472 { |
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473 if( iCorrectTranscoding ) |
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474 { |
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475 //shouldn't contain any parsed value yet |
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476 __ASSERT( !iPipeline, __FILE__, __LINE__ ); |
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477 |
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478 iPipeline = HBufC8::NewL( aBytes.Length() ); |
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479 iPipeline->Des().Copy( aBytes ); |
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480 } |
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481 break; |
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482 } |
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483 case EProtocolInfo: |
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484 { |
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485 if( iCorrectTranscoding ) |
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486 { |
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487 //shouldn't contain any parsed value yet |
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488 __ASSERT( !iProtocolInfo, __FILE__, __LINE__ ); |
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489 |
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490 iProtocolInfo = HBufC8::NewL( aBytes.Length() ); |
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491 iProtocolInfo->Des().Copy( aBytes ); |
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492 } |
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493 break; |
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494 } |
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495 case ESizeMultiplier: |
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496 { |
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497 if( iCorrectTranscoding ) |
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498 { |
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499 //shouldn't contain any parsed value yet |
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500 __ASSERT( iSizeMultiplier == KErrNotFound, __FILE__, |
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501 __LINE__ ); |
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502 |
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503 TLex8 lex; |
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504 lex.Assign( aBytes ); |
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505 TInt err = lex.Val( iSizeMultiplier ); |
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506 |
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507 __ASSERT( !err, __FILE__, __LINE__ ); |
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508 } |
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509 break; |
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510 } |
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511 default: |
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512 { |
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513 __ASSERT( EFalse, __FILE__, __LINE__ ); |
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514 } |
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515 } |
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516 } |
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517 |
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518 // -------------------------------------------------------------------------- |
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519 // CUpnpRendererCfgParser::OnStartPrefixMappingL() |
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520 // (See comments in header file) |
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521 // -------------------------------------------------------------------------- |
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522 // |
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523 void CUpnpRendererCfgParser::OnStartPrefixMappingL( |
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524 const RString& /*aPrefix*/, const RString& /*aUri*/, |
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525 TInt /*aErrorCode*/ ) |
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526 { |
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527 __FUNC_LOG; |
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528 |
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529 // No implementation needed |
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530 } |
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531 // -------------------------------------------------------------------------- |
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532 // CUpnpRendererCfgParser::OnEndPrefixMappingL() |
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533 // (See comments in header file) |
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534 // -------------------------------------------------------------------------- |
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535 // |
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536 void CUpnpRendererCfgParser::OnEndPrefixMappingL( const RString& /*aPrefix*/, |
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537 TInt /*aErrorCode*/ ) |
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538 { |
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539 __FUNC_LOG; |
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540 |
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541 // No implementation needed |
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542 } |
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543 |
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544 // -------------------------------------------------------------------------- |
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545 // CUpnpRendererCfgParser::OnIgnorableWhiteSpaceL() |
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546 // (See comments in header file) |
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547 // -------------------------------------------------------------------------- |
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548 // |
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549 void CUpnpRendererCfgParser::OnIgnorableWhiteSpaceL( const TDesC8& /*aBytes*/, |
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550 TInt /*aErrorCode*/ ) |
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551 { |
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552 __FUNC_LOG; |
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553 |
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554 // No implementation needed |
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555 } |
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556 |
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557 // -------------------------------------------------------------------------- |
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558 // CUpnpRendererCfgParser::OnSkippedEntityL() |
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559 // (See comments in header file) |
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560 // -------------------------------------------------------------------------- |
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561 // |
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562 void CUpnpRendererCfgParser::OnSkippedEntityL( const RString& /*aName*/, |
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563 TInt /*aErrorCode*/ ) |
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564 { |
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565 __FUNC_LOG; |
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566 |
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567 // No implementation needed |
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568 } |
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569 |
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570 // -------------------------------------------------------------------------- |
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571 // CUpnpRendererCfgParser::OnProcessingInstructionL() |
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572 // (See comments in header file) |
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573 // -------------------------------------------------------------------------- |
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574 // |
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575 void CUpnpRendererCfgParser::OnProcessingInstructionL( |
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576 const TDesC8& /*aTarget*/, |
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577 const TDesC8& /*aData*/, |
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578 TInt /*aErrorCode*/ ) |
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579 { |
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580 __FUNC_LOG; |
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581 |
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582 // No implementation needed |
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583 } |
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584 |
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585 // -------------------------------------------------------------------------- |
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586 // CUpnpRendererCfgParser::OnError() |
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587 // (See comments in header file) |
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588 // -------------------------------------------------------------------------- |
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589 // |
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590 void CUpnpRendererCfgParser::OnError( TInt /*aErrorCode*/ ) |
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591 { |
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592 __FUNC_LOG; |
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593 |
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594 // No implementation needed |
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595 } |
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596 |
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597 // -------------------------------------------------------------------------- |
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598 // CUpnpRendererCfgParser::GetExtendedInterface() |
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599 // (See comments in header file) |
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600 // -------------------------------------------------------------------------- |
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601 // |
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602 TAny* CUpnpRendererCfgParser::GetExtendedInterface( const TInt32 /*aUid*/ ) |
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603 { |
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604 __FUNC_LOG; |
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605 |
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606 // No implementation needed |
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607 return NULL; |
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608 } |
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609 |
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610 |
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611 // end of file |