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/*
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* Copyright (c) 2007-2010 Sebastian Brannstrom, Lars Persson, EmbedDev AB
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*
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* EmbedDev AB - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#include "OpmlParser.h"
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#include "debug.h"
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#include <f32file.h>
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#include <bautils.h>
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#include <s32file.h>
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#include <charconv.h>
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#include <xml/stringdictionarycollection.h>
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#include <utf.h>
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using namespace Xml;
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const TInt KMaxParseBuffer = 2048;
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const TInt KMaxStringBuffer = 1024;
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COpmlParser::COpmlParser(CFeedEngine& aFeedEngine, RFs& aFs) : iFeedEngine(aFeedEngine),iFs(aFs)
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{
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}
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COpmlParser::~COpmlParser()
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{
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}
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void COpmlParser::ParseOpmlL(const TFileName &feedFileName, TBool aSearching)
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{
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DP1("ParseOpmlL BEGIN: %S", &feedFileName);
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iSearching = aSearching;
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_LIT8(KXmlMimeType, "text/xml");
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// Contruct the parser object
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CParser* parser = CParser::NewLC(KXmlMimeType, *this);
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iOpmlState = EStateOpmlRoot;
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iEncoding = EUtf8;
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iNumFeedsAdded = 0;
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ParseL(*parser, iFs, feedFileName);
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CleanupStack::PopAndDestroy(parser);
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//DP("ParseFeedL END");
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}
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// from MContentHandler
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void COpmlParser::OnStartDocumentL(const RDocumentParameters& aDocParam, TInt /*aErrorCode*/)
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{
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DP("OnStartDocumentL()");
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HBufC* charset = HBufC::NewLC(KMaxParseBuffer);
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charset->Des().Copy(aDocParam.CharacterSetName().DesC());
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iEncoding = EUtf8;
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if (charset->CompareF(_L("utf-8")) == 0) {
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DP("setting UTF8");
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iEncoding = EUtf8;
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} else if (charset->CompareF(_L("ISO-8859-1")) == 0) {
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iEncoding = EUtf8; //Latin1;
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} else {
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DP1("unknown charset: %S", &charset);
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}
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CleanupStack::PopAndDestroy(charset);
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}
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void COpmlParser::OnEndDocumentL(TInt /*aErrorCode*/)
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{
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iFeedEngine.OpmlParsingComplete(iNumFeedsAdded);
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//DP("OnEndDocumentL()");
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}
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void COpmlParser::OnStartElementL(const RTagInfo& aElement, const RAttributeArray& aAttributes, TInt /*aErrorCode*/)
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{
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TBuf<KMaxStringBuffer> str;
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str.Copy(aElement.LocalName().DesC());
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DP2("OnStartElementL START state=%d, element=%S", iOpmlState, &str);
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iBuffer.Zero();
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switch (iOpmlState) {
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case EStateOpmlRoot:
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// <body>
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if (str.CompareF(KTagBody) == 0) {
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iOpmlState = EStateOpmlBody;
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}
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break;
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case EStateOpmlBody:
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// <body> <outline>
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if(str.CompareF(KTagOutline) == 0) {
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iOpmlState = EStateOpmlOutline;
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}
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break;
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case EStateOpmlOutline:
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// <body> <outline> <outline...
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if(str.CompareF(KTagOutline) == 0) {
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iOpmlState=EStateOpmlOutlineOutline;
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CFeedInfo* newFeed = CFeedInfo::NewLC();
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TBool hasTitle = EFalse;
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TBool hasUrl = EFalse;
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for (int i=0;i<aAttributes.Count();i++) {
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RAttribute attr = aAttributes[i];
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TBuf<KMaxStringBuffer> attr16;
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attr16.Copy(attr.Attribute().LocalName().DesC().Left(KMaxStringBuffer));
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HBufC* val16 = CnvUtfConverter::ConvertToUnicodeFromUtf8L(
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attr.Value().DesC().Left(KMaxParseBuffer));
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CleanupStack::PushL(val16);
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// xmlUrl=...
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if (attr16.Compare(KTagXmlUrl) == 0 || attr16.Compare(KTagUrl) == 0) {
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newFeed->SetUrlL(*val16);
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hasUrl = ETrue;
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// htmlUrl
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} else if (attr16.Compare(KTagHtmlUrl) == 0) {
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newFeed->SetLinkL(*val16);
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hasUrl = ETrue;
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// text=...
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} else if (attr16.Compare(KTagTitle) == 0) {
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newFeed->SetTitleL(*val16);
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newFeed->SetCustomTitle();
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hasTitle = ETrue;
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// description=
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} else if (attr16.Compare(KTagDescription) == 0) {
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newFeed->SetDescriptionL(*val16);
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} else if (attr16.Compare(KTagText) == 0) {
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if (!hasTitle) {
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newFeed->SetTitleL(*val16);
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newFeed->SetCustomTitle();
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hasTitle = ETrue;
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}
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}
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CleanupStack::PopAndDestroy(val16);
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}
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if (!hasUrl) {
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break;
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}
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if (!hasTitle) {
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newFeed->SetTitleL(newFeed->Url());
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}
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if (iSearching) {
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iFeedEngine.AddSearchResultL(newFeed);
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CleanupStack::Pop(newFeed);
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} else {
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iFeedEngine.AddFeedL(*newFeed);
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CleanupStack::PopAndDestroy(newFeed);
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iNumFeedsAdded++;
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}
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}
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break;
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default:
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DP2("Ignoring tag %S when in state %d", &str, iOpmlState);
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break;
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}
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DP1("OnStartElementL END state=%d", iOpmlState);
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}
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void COpmlParser::OnEndElementL(const RTagInfo& aElement, TInt /*aErrorCode*/)
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{
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TDesC8 lName = aElement.LocalName().DesC();
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TBuf<KMaxStringBuffer> str;
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str.Copy(aElement.LocalName().DesC());
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DP2("OnEndElementL START state=%d, element=%S", iOpmlState, &str);
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switch (iOpmlState) {
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case EStateOpmlOutlineOutline:
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iOpmlState=EStateOpmlOutline;
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break;
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case EStateOpmlOutline:
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iOpmlState=EStateOpmlBody;
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break;
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case EStateOpmlBody:
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iOpmlState = EStateOpmlRoot;
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break;
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default:
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// fall back to body level when in doubt
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iOpmlState = EStateOpmlBody;
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//DP("Don't know how to handle end tag %S when in state %d"), &str, iFeedState);
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break;
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}
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DP1("OnEndElementL END state=%d", iOpmlState);
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}
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void COpmlParser::OnContentL(const TDesC8& /*aBytes*/, TInt /*aErrorCode*/)
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{
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//DP("OnContentL()");
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}
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void COpmlParser::OnStartPrefixMappingL(const RString& /*aPrefix*/, const RString& /*aUri*/, TInt /*aErrorCode*/)
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{
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//DP("OnStartPrefixMappingL()");
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}
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void COpmlParser::OnEndPrefixMappingL(const RString& /*aPrefix*/, TInt /*aErrorCode*/)
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{
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//DP("OnEndPrefixMappingL()");
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}
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void COpmlParser::OnIgnorableWhiteSpaceL(const TDesC8& /*aBytes*/, TInt /*aErrorCode*/)
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{
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//DP("OnIgnorableWhiteSpaceL()");
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}
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void COpmlParser::OnSkippedEntityL(const RString& /*aName*/, TInt /*aErrorCode*/)
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{
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//DP("OnSkippedEntityL()");
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}
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void COpmlParser::OnProcessingInstructionL(const TDesC8& /*aTarget*/, const TDesC8& /*aData*/, TInt /*aErrorCode*/)
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{
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//DP("OnProcessingInstructionL()");
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}
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void COpmlParser::OnError(TInt aErrorCode)
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{
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DP1("COpmlParser::OnError %d", aErrorCode);
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iFeedEngine.OpmlParsingComplete(iNumFeedsAdded);
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}
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TAny* COpmlParser::GetExtendedInterface(const TInt32 /*aUid*/)
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{
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//DP("GetExtendedInterface()");
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return NULL;
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}
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