144 lines
4.2 KiB
C++
144 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "MPL"); you may not use this file except in
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* compliance with the MPL. You may obtain a copy of the MPL at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the MPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the MPL
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* for the specific language governing rights and limitations under the
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* MPL.
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*
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* The Initial Developer of this code under the MPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1999 Netscape Communications Corporation. All Rights
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* Reserved.
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*
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* Contributor(s):
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* Chris Waterson <waterson@netscape.com>
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*/
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#include "nsRDFXMLParser.h"
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#include "nsIComponentManager.h"
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#include "nsIParser.h"
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#include "nsIRDFContentSink.h"
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#include "nsParserCIID.h"
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#include "nsNetUtil.h"
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static NS_DEFINE_CID(kParserCID, NS_PARSER_CID);
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NS_IMPL_ISUPPORTS1(nsRDFXMLParser, nsIRDFXMLParser)
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NS_IMETHODIMP
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nsRDFXMLParser::Create(nsISupports* aOuter, REFNSIID aIID, void** aResult)
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{
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if (aOuter)
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return NS_ERROR_NO_AGGREGATION;
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nsRDFXMLParser* result = new nsRDFXMLParser();
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if (! result)
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return NS_ERROR_OUT_OF_MEMORY;
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nsresult rv;
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NS_ADDREF(result);
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rv = result->QueryInterface(aIID, aResult);
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NS_RELEASE(result);
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return rv;
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}
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nsRDFXMLParser::nsRDFXMLParser()
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{
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NS_INIT_ISUPPORTS();
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MOZ_COUNT_CTOR(nsRDFXMLParser);
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}
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nsRDFXMLParser::~nsRDFXMLParser()
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{
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MOZ_COUNT_DTOR(nsRDFXMLParser);
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}
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NS_IMETHODIMP
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nsRDFXMLParser::ParseAsync(nsIRDFDataSource* aSink, nsIURI* aBaseURI, nsIStreamListener** aResult)
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{
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nsresult rv;
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nsCOMPtr<nsIRDFContentSink> sink =
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do_CreateInstance("@mozilla.org/rdf/content-sink;1", &rv);
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if (NS_FAILED(rv)) return rv;
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rv = sink->Init(aBaseURI);
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if (NS_FAILED(rv)) return rv;
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// We set the content sink's data source directly to our in-memory
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// store. This allows the initial content to be generated "directly".
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rv = sink->SetDataSource(aSink);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIParser> parser = do_CreateInstance(kParserCID, &rv);
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if (NS_FAILED(rv)) return rv;
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parser->SetDocumentCharset(NS_LITERAL_STRING("UTF-8"),
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kCharsetFromDocTypeDefault);
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parser->SetContentSink(sink);
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rv = parser->Parse(aBaseURI);
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if (NS_FAILED(rv)) return rv;
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return CallQueryInterface(parser, aResult);
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}
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NS_IMETHODIMP
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nsRDFXMLParser::ParseString(nsIRDFDataSource* aSink, nsIURI* aBaseURI, const nsAString& aString)
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{
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nsresult rv;
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nsCOMPtr<nsIRDFContentSink> sink =
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do_CreateInstance("@mozilla.org/rdf/content-sink;1", &rv);
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if (NS_FAILED(rv)) return rv;
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rv = sink->Init(aBaseURI);
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if (NS_FAILED(rv)) return rv;
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// We set the content sink's data source directly to our in-memory
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// store. This allows the initial content to be generated "directly".
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rv = sink->SetDataSource(aSink);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIParser> parser = do_CreateInstance(kParserCID, &rv);
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if (NS_FAILED(rv)) return rv;
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parser->SetDocumentCharset(NS_LITERAL_STRING("UTF-8"),
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kCharsetFromDocTypeDefault);
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parser->SetContentSink(sink);
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rv = parser->Parse(aBaseURI);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIStreamListener> listener =
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do_QueryInterface(parser);
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if (! listener)
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return NS_ERROR_FAILURE;
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nsCOMPtr<nsIInputStream> stream;
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rv = NS_NewStringInputStream(getter_AddRefs(stream), aString);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIChannel> channel;
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rv = NS_NewInputStreamChannel(getter_AddRefs(channel), aBaseURI, stream,
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NS_LITERAL_CSTRING("text/xml"),
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NS_LITERAL_CSTRING(""),
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aString.Length());
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if (NS_FAILED(rv)) return rv;
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listener->OnStartRequest(channel, nsnull);
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listener->OnDataAvailable(channel, nsnull, stream, 0, aString.Length());
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listener->OnStopRequest(channel, nsnull, NS_OK);
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return NS_OK;
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}
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