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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /rdf/base/nsRDFXMLParser.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'rdf/base/nsRDFXMLParser.cpp')
-rw-r--r--rdf/base/nsRDFXMLParser.cpp137
1 files changed, 137 insertions, 0 deletions
diff --git a/rdf/base/nsRDFXMLParser.cpp b/rdf/base/nsRDFXMLParser.cpp
new file mode 100644
index 000000000..67de90820
--- /dev/null
+++ b/rdf/base/nsRDFXMLParser.cpp
@@ -0,0 +1,137 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsRDFXMLParser.h"
+
+#include "nsIComponentManager.h"
+#include "nsIParser.h"
+#include "nsCharsetSource.h"
+#include "nsIRDFContentSink.h"
+#include "nsParserCIID.h"
+#include "nsStringStream.h"
+#include "nsNetUtil.h"
+#include "nsNullPrincipal.h"
+
+static NS_DEFINE_CID(kParserCID, NS_PARSER_CID);
+
+NS_IMPL_ISUPPORTS(nsRDFXMLParser, nsIRDFXMLParser)
+
+nsresult
+nsRDFXMLParser::Create(nsISupports* aOuter, REFNSIID aIID, void** aResult)
+{
+ if (aOuter)
+ return NS_ERROR_NO_AGGREGATION;
+
+ nsRDFXMLParser* result = new nsRDFXMLParser();
+ if (! result)
+ return NS_ERROR_OUT_OF_MEMORY;
+
+ nsresult rv;
+ NS_ADDREF(result);
+ rv = result->QueryInterface(aIID, aResult);
+ NS_RELEASE(result);
+ return rv;
+}
+
+nsRDFXMLParser::nsRDFXMLParser()
+{
+ MOZ_COUNT_CTOR(nsRDFXMLParser);
+}
+
+nsRDFXMLParser::~nsRDFXMLParser()
+{
+ MOZ_COUNT_DTOR(nsRDFXMLParser);
+}
+
+NS_IMETHODIMP
+nsRDFXMLParser::ParseAsync(nsIRDFDataSource* aSink, nsIURI* aBaseURI, nsIStreamListener** aResult)
+{
+ nsresult rv;
+
+ nsCOMPtr<nsIRDFContentSink> sink =
+ do_CreateInstance("@mozilla.org/rdf/content-sink;1", &rv);
+
+ if (NS_FAILED(rv)) return rv;
+
+ rv = sink->Init(aBaseURI);
+ if (NS_FAILED(rv)) return rv;
+
+ // We set the content sink's data source directly to our in-memory
+ // store. This allows the initial content to be generated "directly".
+ rv = sink->SetDataSource(aSink);
+ if (NS_FAILED(rv)) return rv;
+
+ nsCOMPtr<nsIParser> parser = do_CreateInstance(kParserCID, &rv);
+ if (NS_FAILED(rv)) return rv;
+
+ parser->SetDocumentCharset(NS_LITERAL_CSTRING("UTF-8"),
+ kCharsetFromDocTypeDefault);
+ parser->SetContentSink(sink);
+
+ rv = parser->Parse(aBaseURI);
+ if (NS_FAILED(rv)) return rv;
+
+ return CallQueryInterface(parser, aResult);
+}
+
+NS_IMETHODIMP
+nsRDFXMLParser::ParseString(nsIRDFDataSource* aSink, nsIURI* aBaseURI, const nsACString& aString)
+{
+ nsresult rv;
+
+ nsCOMPtr<nsIRDFContentSink> sink =
+ do_CreateInstance("@mozilla.org/rdf/content-sink;1", &rv);
+
+ if (NS_FAILED(rv)) return rv;
+
+ rv = sink->Init(aBaseURI);
+ if (NS_FAILED(rv)) return rv;
+
+ // We set the content sink's data source directly to our in-memory
+ // store. This allows the initial content to be generated "directly".
+ rv = sink->SetDataSource(aSink);
+ if (NS_FAILED(rv)) return rv;
+
+ nsCOMPtr<nsIParser> parser = do_CreateInstance(kParserCID, &rv);
+ if (NS_FAILED(rv)) return rv;
+
+ parser->SetDocumentCharset(NS_LITERAL_CSTRING("UTF-8"),
+ kCharsetFromOtherComponent);
+ parser->SetContentSink(sink);
+
+ rv = parser->Parse(aBaseURI);
+ if (NS_FAILED(rv)) return rv;
+
+ nsCOMPtr<nsIStreamListener> listener =
+ do_QueryInterface(parser);
+
+ if (! listener)
+ return NS_ERROR_FAILURE;
+
+ nsCOMPtr<nsIInputStream> stream;
+ rv = NS_NewCStringInputStream(getter_AddRefs(stream), aString);
+ if (NS_FAILED(rv)) return rv;
+
+ nsCOMPtr<nsIPrincipal> nullPrincipal = nsNullPrincipal::Create();
+
+ // The following channel is never openend, so it does not matter what
+ // securityFlags we pass; let's follow the principle of least privilege.
+ nsCOMPtr<nsIChannel> channel;
+ rv = NS_NewInputStreamChannel(getter_AddRefs(channel),
+ aBaseURI,
+ stream,
+ nullPrincipal,
+ nsILoadInfo::SEC_REQUIRE_SAME_ORIGIN_DATA_IS_BLOCKED,
+ nsIContentPolicy::TYPE_OTHER,
+ NS_LITERAL_CSTRING("text/xml"));
+ if (NS_FAILED(rv)) return rv;
+
+ listener->OnStartRequest(channel, nullptr);
+ listener->OnDataAvailable(channel, nullptr, stream, 0, aString.Length());
+ listener->OnStopRequest(channel, nullptr, NS_OK);
+
+ return NS_OK;
+}