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rdf/base/src/nsRDFXMLParser.cpp@b8a032363ba2 (annotated)

rdf/base/src/nsRDFXMLParser.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0	2	*
michael@0	3	* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	4	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	5	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	6
michael@0	7	#include "nsRDFXMLParser.h"
michael@0	8
michael@0	9	#include "nsIComponentManager.h"
michael@0	10	#include "nsIParser.h"
michael@0	11	#include "nsCharsetSource.h"
michael@0	12	#include "nsIRDFContentSink.h"
michael@0	13	#include "nsParserCIID.h"
michael@0	14	#include "nsStringStream.h"
michael@0	15	#include "nsNetUtil.h"
michael@0	16
michael@0	17	static NS_DEFINE_CID(kParserCID, NS_PARSER_CID);
michael@0	18
michael@0	19	NS_IMPL_ISUPPORTS(nsRDFXMLParser, nsIRDFXMLParser)
michael@0	20
michael@0	21	nsresult
michael@0	22	nsRDFXMLParser::Create(nsISupports* aOuter, REFNSIID aIID, void** aResult)
michael@0	23	{
michael@0	24	if (aOuter)
michael@0	25	return NS_ERROR_NO_AGGREGATION;
michael@0	26
michael@0	27	nsRDFXMLParser* result = new nsRDFXMLParser();
michael@0	28	if (! result)
michael@0	29	return NS_ERROR_OUT_OF_MEMORY;
michael@0	30
michael@0	31	nsresult rv;
michael@0	32	NS_ADDREF(result);
michael@0	33	rv = result->QueryInterface(aIID, aResult);
michael@0	34	NS_RELEASE(result);
michael@0	35	return rv;
michael@0	36	}
michael@0	37
michael@0	38	nsRDFXMLParser::nsRDFXMLParser()
michael@0	39	{
michael@0	40	MOZ_COUNT_CTOR(nsRDFXMLParser);
michael@0	41	}
michael@0	42
michael@0	43	nsRDFXMLParser::~nsRDFXMLParser()
michael@0	44	{
michael@0	45	MOZ_COUNT_DTOR(nsRDFXMLParser);
michael@0	46	}
michael@0	47
michael@0	48	NS_IMETHODIMP
michael@0	49	nsRDFXMLParser::ParseAsync(nsIRDFDataSource* aSink, nsIURI* aBaseURI, nsIStreamListener** aResult)
michael@0	50	{
michael@0	51	nsresult rv;
michael@0	52
michael@0	53	nsCOMPtr<nsIRDFContentSink> sink =
michael@0	54	do_CreateInstance("@mozilla.org/rdf/content-sink;1", &rv);
michael@0	55
michael@0	56	if (NS_FAILED(rv)) return rv;
michael@0	57
michael@0	58	rv = sink->Init(aBaseURI);
michael@0	59	if (NS_FAILED(rv)) return rv;
michael@0	60
michael@0	61	// We set the content sink's data source directly to our in-memory
michael@0	62	// store. This allows the initial content to be generated "directly".
michael@0	63	rv = sink->SetDataSource(aSink);
michael@0	64	if (NS_FAILED(rv)) return rv;
michael@0	65
michael@0	66	nsCOMPtr<nsIParser> parser = do_CreateInstance(kParserCID, &rv);
michael@0	67	if (NS_FAILED(rv)) return rv;
michael@0	68
michael@0	69	parser->SetDocumentCharset(NS_LITERAL_CSTRING("UTF-8"),
michael@0	70	kCharsetFromDocTypeDefault);
michael@0	71	parser->SetContentSink(sink);
michael@0	72
michael@0	73	rv = parser->Parse(aBaseURI);
michael@0	74	if (NS_FAILED(rv)) return rv;
michael@0	75
michael@0	76	return CallQueryInterface(parser, aResult);
michael@0	77	}
michael@0	78
michael@0	79	NS_IMETHODIMP
michael@0	80	nsRDFXMLParser::ParseString(nsIRDFDataSource* aSink, nsIURI* aBaseURI, const nsACString& aString)
michael@0	81	{
michael@0	82	nsresult rv;
michael@0	83
michael@0	84	nsCOMPtr<nsIRDFContentSink> sink =
michael@0	85	do_CreateInstance("@mozilla.org/rdf/content-sink;1", &rv);
michael@0	86
michael@0	87	if (NS_FAILED(rv)) return rv;
michael@0	88
michael@0	89	rv = sink->Init(aBaseURI);
michael@0	90	if (NS_FAILED(rv)) return rv;
michael@0	91
michael@0	92	// We set the content sink's data source directly to our in-memory
michael@0	93	// store. This allows the initial content to be generated "directly".
michael@0	94	rv = sink->SetDataSource(aSink);
michael@0	95	if (NS_FAILED(rv)) return rv;
michael@0	96
michael@0	97	nsCOMPtr<nsIParser> parser = do_CreateInstance(kParserCID, &rv);
michael@0	98	if (NS_FAILED(rv)) return rv;
michael@0	99
michael@0	100	parser->SetDocumentCharset(NS_LITERAL_CSTRING("UTF-8"),
michael@0	101	kCharsetFromOtherComponent);
michael@0	102	parser->SetContentSink(sink);
michael@0	103
michael@0	104	rv = parser->Parse(aBaseURI);
michael@0	105	if (NS_FAILED(rv)) return rv;
michael@0	106
michael@0	107	nsCOMPtr<nsIStreamListener> listener =
michael@0	108	do_QueryInterface(parser);
michael@0	109
michael@0	110	if (! listener)
michael@0	111	return NS_ERROR_FAILURE;
michael@0	112
michael@0	113	nsCOMPtr<nsIInputStream> stream;
michael@0	114	rv = NS_NewCStringInputStream(getter_AddRefs(stream), aString);
michael@0	115	if (NS_FAILED(rv)) return rv;
michael@0	116
michael@0	117	nsCOMPtr<nsIChannel> channel;
michael@0	118	rv = NS_NewInputStreamChannel(getter_AddRefs(channel), aBaseURI, stream,
michael@0	119	NS_LITERAL_CSTRING("text/xml"));
michael@0	120	if (NS_FAILED(rv)) return rv;
michael@0	121
michael@0	122	listener->OnStartRequest(channel, nullptr);
michael@0	123	listener->OnDataAvailable(channel, nullptr, stream, 0, aString.Length());
michael@0	124	listener->OnStopRequest(channel, nullptr, NS_OK);
michael@0	125
michael@0	126	return NS_OK;
michael@0	127	}