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1 /* |
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2 * Copyright (c) 2007-2010 Sebastian Brannstrom, Lars Persson, EmbedDev AB |
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3 * |
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4 * All rights reserved. |
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5 * This component and the accompanying materials are made available |
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6 * under the terms of the License "Eclipse Public License v1.0" |
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7 * which accompanies this distribution, and is available |
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8 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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9 * |
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10 * Initial Contributors: |
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11 * EmbedDev AB - initial contribution. |
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12 * |
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13 * Contributors: |
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14 * |
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15 * Description: |
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16 * |
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17 */ |
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18 |
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19 #include "OpmlParser.h" |
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20 #include "debug.h" |
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21 #include <f32file.h> |
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22 #include <bautils.h> |
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23 #include <s32file.h> |
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24 #include <charconv.h> |
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25 #include <xml/stringdictionarycollection.h> |
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26 #include <utf.h> |
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27 |
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28 using namespace Xml; |
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29 const TInt KMaxParseBuffer = 2048; |
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30 const TInt KMaxStringBuffer = 1024; |
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31 COpmlParser::COpmlParser(CFeedEngine& aFeedEngine, RFs& aFs) : iFeedEngine(aFeedEngine),iFs(aFs) |
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32 { |
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33 } |
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34 |
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35 COpmlParser::~COpmlParser() |
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36 { |
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37 } |
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38 |
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39 void COpmlParser::ParseOpmlL(const TFileName &feedFileName, TBool aSearching) |
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40 { |
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41 DP1("ParseOpmlL BEGIN: %S", &feedFileName); |
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42 |
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43 iSearching = aSearching; |
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44 _LIT8(KXmlMimeType, "text/xml"); |
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45 // Contruct the parser object |
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46 CParser* parser = CParser::NewLC(KXmlMimeType, *this); |
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47 iOpmlState = EStateOpmlRoot; |
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48 iEncoding = EUtf8; |
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49 iNumFeedsAdded = 0; |
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50 ParseL(*parser, iFs, feedFileName); |
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51 |
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52 CleanupStack::PopAndDestroy(parser); |
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53 //DP("ParseFeedL END"); |
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54 } |
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55 |
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56 // from MContentHandler |
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57 void COpmlParser::OnStartDocumentL(const RDocumentParameters& aDocParam, TInt /*aErrorCode*/) |
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58 { |
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59 DP("OnStartDocumentL()"); |
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60 HBufC* charset = HBufC::NewLC(KMaxParseBuffer); |
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61 charset->Des().Copy(aDocParam.CharacterSetName().DesC()); |
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62 iEncoding = EUtf8; |
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63 if (charset->CompareF(_L("utf-8")) == 0) { |
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64 DP("setting UTF8"); |
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65 iEncoding = EUtf8; |
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66 } else if (charset->CompareF(_L("ISO-8859-1")) == 0) { |
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67 iEncoding = EUtf8; //Latin1; |
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68 } else { |
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69 DP1("unknown charset: %S", &charset); |
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70 } |
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71 CleanupStack::PopAndDestroy(charset); |
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72 } |
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73 |
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74 void COpmlParser::OnEndDocumentL(TInt /*aErrorCode*/) |
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75 { |
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76 iFeedEngine.OpmlParsingComplete(iNumFeedsAdded); |
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77 //DP("OnEndDocumentL()"); |
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78 } |
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79 |
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80 void COpmlParser::OnStartElementL(const RTagInfo& aElement, const RAttributeArray& aAttributes, TInt /*aErrorCode*/) |
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81 { |
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82 TBuf<KMaxStringBuffer> str; |
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83 str.Copy(aElement.LocalName().DesC()); |
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84 DP2("OnStartElementL START state=%d, element=%S", iOpmlState, &str); |
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85 iBuffer.Zero(); |
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86 switch (iOpmlState) { |
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87 case EStateOpmlRoot: |
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88 // <body> |
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89 if (str.CompareF(KTagBody) == 0) { |
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90 iOpmlState = EStateOpmlBody; |
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91 } |
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92 break; |
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93 case EStateOpmlBody: |
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94 // <body> <outline> |
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95 |
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96 if(str.CompareF(KTagOutline) == 0) { |
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97 iOpmlState = EStateOpmlOutline; |
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98 } |
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99 break; |
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100 case EStateOpmlOutline: |
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101 // <body> <outline> <outline... |
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102 if(str.CompareF(KTagOutline) == 0) { |
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103 iOpmlState=EStateOpmlOutlineOutline; |
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104 CFeedInfo* newFeed = CFeedInfo::NewLC(); |
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105 |
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106 TBool hasTitle = EFalse; |
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107 TBool hasUrl = EFalse; |
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108 |
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109 for (int i=0;i<aAttributes.Count();i++) { |
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110 RAttribute attr = aAttributes[i]; |
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111 TBuf<KMaxStringBuffer> attr16; |
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112 attr16.Copy(attr.Attribute().LocalName().DesC().Left(KMaxStringBuffer)); |
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113 HBufC* val16 = CnvUtfConverter::ConvertToUnicodeFromUtf8L( |
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114 attr.Value().DesC().Left(KMaxParseBuffer)); |
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115 CleanupStack::PushL(val16); |
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116 |
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117 // xmlUrl=... |
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118 if (attr16.Compare(KTagXmlUrl) == 0 || attr16.Compare(KTagUrl) == 0) { |
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119 newFeed->SetUrlL(*val16); |
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120 hasUrl = ETrue; |
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121 // htmlUrl |
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122 } else if (attr16.Compare(KTagHtmlUrl) == 0) { |
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123 newFeed->SetLinkL(*val16); |
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124 hasUrl = ETrue; |
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125 // text=... |
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126 } else if (attr16.Compare(KTagTitle) == 0) { |
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127 newFeed->SetTitleL(*val16); |
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128 newFeed->SetCustomTitle(); |
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129 hasTitle = ETrue; |
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130 // description= |
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131 } else if (attr16.Compare(KTagDescription) == 0) { |
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132 newFeed->SetDescriptionL(*val16); |
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133 } else if (attr16.Compare(KTagText) == 0) { |
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134 if (!hasTitle) { |
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135 newFeed->SetTitleL(*val16); |
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136 newFeed->SetCustomTitle(); |
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137 hasTitle = ETrue; |
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138 } |
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139 } |
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140 CleanupStack::PopAndDestroy(val16); |
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141 } |
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142 |
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143 if (!hasUrl) { |
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144 break; |
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145 } |
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146 |
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147 if (!hasTitle) { |
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148 newFeed->SetTitleL(newFeed->Url()); |
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149 } |
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150 |
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151 if (iSearching) { |
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152 iFeedEngine.AddSearchResultL(newFeed); |
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153 CleanupStack::Pop(newFeed); |
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154 } else { |
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155 iFeedEngine.AddFeedL(*newFeed); |
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156 CleanupStack::PopAndDestroy(newFeed); |
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157 iNumFeedsAdded++; |
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158 } |
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159 } |
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160 break; |
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161 default: |
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162 DP2("Ignoring tag %S when in state %d", &str, iOpmlState); |
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163 break; |
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164 } |
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165 DP1("OnStartElementL END state=%d", iOpmlState); |
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166 } |
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167 |
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168 void COpmlParser::OnEndElementL(const RTagInfo& aElement, TInt /*aErrorCode*/) |
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169 { |
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170 |
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171 TDesC8 lName = aElement.LocalName().DesC(); |
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172 TBuf<KMaxStringBuffer> str; |
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173 str.Copy(aElement.LocalName().DesC()); |
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174 |
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175 DP2("OnEndElementL START state=%d, element=%S", iOpmlState, &str); |
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176 |
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177 switch (iOpmlState) { |
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178 case EStateOpmlOutlineOutline: |
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179 iOpmlState=EStateOpmlOutline; |
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180 break; |
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181 case EStateOpmlOutline: |
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182 iOpmlState=EStateOpmlBody; |
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183 break; |
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184 case EStateOpmlBody: |
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185 iOpmlState = EStateOpmlRoot; |
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186 break; |
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187 default: |
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188 // fall back to body level when in doubt |
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189 iOpmlState = EStateOpmlBody; |
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190 //DP("Don't know how to handle end tag %S when in state %d"), &str, iFeedState); |
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191 break; |
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192 } |
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193 |
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194 DP1("OnEndElementL END state=%d", iOpmlState); |
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195 } |
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196 |
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197 void COpmlParser::OnContentL(const TDesC8& /*aBytes*/, TInt /*aErrorCode*/) |
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198 { |
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199 //DP("OnContentL()"); |
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200 } |
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201 |
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202 void COpmlParser::OnStartPrefixMappingL(const RString& /*aPrefix*/, const RString& /*aUri*/, TInt /*aErrorCode*/) |
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203 { |
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204 //DP("OnStartPrefixMappingL()"); |
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205 } |
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206 |
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207 void COpmlParser::OnEndPrefixMappingL(const RString& /*aPrefix*/, TInt /*aErrorCode*/) |
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208 { |
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209 //DP("OnEndPrefixMappingL()"); |
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210 } |
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211 |
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212 void COpmlParser::OnIgnorableWhiteSpaceL(const TDesC8& /*aBytes*/, TInt /*aErrorCode*/) |
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213 { |
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214 //DP("OnIgnorableWhiteSpaceL()"); |
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215 } |
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216 |
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217 void COpmlParser::OnSkippedEntityL(const RString& /*aName*/, TInt /*aErrorCode*/) |
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218 { |
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219 //DP("OnSkippedEntityL()"); |
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220 } |
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221 |
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222 void COpmlParser::OnProcessingInstructionL(const TDesC8& /*aTarget*/, const TDesC8& /*aData*/, TInt /*aErrorCode*/) |
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223 { |
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224 //DP("OnProcessingInstructionL()"); |
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225 } |
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226 |
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227 void COpmlParser::OnError(TInt aErrorCode) |
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228 { |
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229 DP1("COpmlParser::OnError %d", aErrorCode); |
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230 iFeedEngine.OpmlParsingComplete(iNumFeedsAdded); |
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231 } |
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232 |
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233 TAny* COpmlParser::GetExtendedInterface(const TInt32 /*aUid*/) |
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234 { |
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235 //DP("GetExtendedInterface()"); |
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236 return NULL; |
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237 } |