зеркало из https://github.com/mozilla/pjs.git
265 строки
9.0 KiB
C++
265 строки
9.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Robert Sayre.
|
|
* Portions created by the Initial Developer are Copyright (C) 2006
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#include "nsString.h"
|
|
#include "nsIComponentManager.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsXPCOM.h"
|
|
#include "nsISupportsPrimitives.h"
|
|
#include "nsXPIDLString.h"
|
|
#include "nsScriptLoader.h"
|
|
#include "nsEscape.h"
|
|
#include "nsIParser.h"
|
|
#include "nsIDTD.h"
|
|
#include "nsNetCID.h"
|
|
#include "nsNetUtil.h"
|
|
#include "nsParserCIID.h"
|
|
#include "nsContentUtils.h"
|
|
#include "nsIContentSink.h"
|
|
#include "nsIDocumentEncoder.h"
|
|
#include "nsIDOMDocumentFragment.h"
|
|
#include "nsIFragmentContentSink.h"
|
|
#include "nsIDOMDocument.h"
|
|
#include "nsIDOMNodeList.h"
|
|
#include "nsIDOMNode.h"
|
|
#include "nsIDOMElement.h"
|
|
#include "nsIDocument.h"
|
|
#include "nsIContent.h"
|
|
#include "nsAttrName.h"
|
|
#include "nsHTMLParts.h"
|
|
#include "nsContentCID.h"
|
|
#include "nsIScriptableUnescapeHTML.h"
|
|
#include "nsParserUtils.h"
|
|
#include "nsAutoPtr.h"
|
|
#include "nsTreeSanitizer.h"
|
|
#include "nsHtml5Module.h"
|
|
|
|
#define XHTML_DIV_TAG "div xmlns=\"http://www.w3.org/1999/xhtml\""
|
|
|
|
NS_IMPL_ISUPPORTS2(nsParserUtils,
|
|
nsIScriptableUnescapeHTML,
|
|
nsIParserUtils)
|
|
|
|
static NS_DEFINE_CID(kCParserCID, NS_PARSER_CID);
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsParserUtils::ConvertToPlainText(const nsAString& aFromStr,
|
|
PRUint32 aFlags,
|
|
PRUint32 aWrapCol,
|
|
nsAString& aToStr)
|
|
{
|
|
return nsContentUtils::ConvertToPlainText(aFromStr,
|
|
aToStr,
|
|
aFlags,
|
|
aWrapCol);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsParserUtils::Unescape(const nsAString& aFromStr,
|
|
nsAString& aToStr)
|
|
{
|
|
return nsContentUtils::ConvertToPlainText(aFromStr,
|
|
aToStr,
|
|
nsIDocumentEncoder::OutputSelectionOnly |
|
|
nsIDocumentEncoder::OutputAbsoluteLinks,
|
|
0);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsParserUtils::Sanitize(const nsAString& aFromStr,
|
|
PRUint32 aFlags,
|
|
nsAString& aToStr)
|
|
{
|
|
nsCOMPtr<nsIURI> uri;
|
|
NS_NewURI(getter_AddRefs(uri), "about:blank");
|
|
nsCOMPtr<nsIPrincipal> principal =
|
|
do_CreateInstance("@mozilla.org/nullprincipal;1");
|
|
nsCOMPtr<nsIDOMDocument> domDocument;
|
|
nsresult rv = nsContentUtils::CreateDocument(EmptyString(),
|
|
EmptyString(),
|
|
nsnull,
|
|
uri,
|
|
uri,
|
|
principal,
|
|
nsnull,
|
|
DocumentFlavorHTML,
|
|
getter_AddRefs(domDocument));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIDocument> document = do_QueryInterface(domDocument);
|
|
rv = nsContentUtils::ParseDocumentHTML(aFromStr, document, false);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsTreeSanitizer sanitizer(aFlags);
|
|
sanitizer.Sanitize(document);
|
|
|
|
nsCOMPtr<nsIDocumentEncoder> encoder =
|
|
do_CreateInstance(NS_DOC_ENCODER_CONTRACTID_BASE "text/html");
|
|
|
|
encoder->NativeInit(document,
|
|
NS_LITERAL_STRING("text/html"),
|
|
nsIDocumentEncoder::OutputDontRewriteEncodingDeclaration |
|
|
nsIDocumentEncoder::OutputNoScriptContent |
|
|
nsIDocumentEncoder::OutputEncodeBasicEntities |
|
|
nsIDocumentEncoder::OutputLFLineBreak |
|
|
nsIDocumentEncoder::OutputRaw);
|
|
|
|
return encoder->EncodeToString(aToStr);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsParserUtils::ParseFragment(const nsAString& aFragment,
|
|
bool aIsXML,
|
|
nsIURI* aBaseURI,
|
|
nsIDOMElement* aContextElement,
|
|
nsIDOMDocumentFragment** aReturn)
|
|
{
|
|
return nsParserUtils::ParseFragment(aFragment,
|
|
0,
|
|
aIsXML,
|
|
aBaseURI,
|
|
aContextElement,
|
|
aReturn);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsParserUtils::ParseFragment(const nsAString& aFragment,
|
|
PRUint32 aFlags,
|
|
bool aIsXML,
|
|
nsIURI* aBaseURI,
|
|
nsIDOMElement* aContextElement,
|
|
nsIDOMDocumentFragment** aReturn)
|
|
{
|
|
NS_ENSURE_ARG(aContextElement);
|
|
*aReturn = nsnull;
|
|
|
|
nsresult rv;
|
|
nsCOMPtr<nsIParser> parser = do_CreateInstance(kCParserCID, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIDocument> document;
|
|
nsCOMPtr<nsIDOMDocument> domDocument;
|
|
nsCOMPtr<nsIDOMNode> contextNode;
|
|
contextNode = do_QueryInterface(aContextElement);
|
|
contextNode->GetOwnerDocument(getter_AddRefs(domDocument));
|
|
document = do_QueryInterface(domDocument);
|
|
NS_ENSURE_TRUE(document, NS_ERROR_NOT_AVAILABLE);
|
|
|
|
// stop scripts
|
|
nsRefPtr<nsScriptLoader> loader;
|
|
bool scripts_enabled = false;
|
|
if (document) {
|
|
loader = document->ScriptLoader();
|
|
scripts_enabled = loader->GetEnabled();
|
|
}
|
|
if (scripts_enabled) {
|
|
loader->SetEnabled(false);
|
|
}
|
|
|
|
// Wrap things in a div or body for parsing, but it won't show up in
|
|
// the fragment.
|
|
nsAutoTArray<nsString, 2> tagStack;
|
|
nsCAutoString base, spec;
|
|
if (aIsXML) {
|
|
// XHTML
|
|
if (aBaseURI) {
|
|
base.Append(NS_LITERAL_CSTRING(XHTML_DIV_TAG));
|
|
base.Append(NS_LITERAL_CSTRING(" xml:base=\""));
|
|
aBaseURI->GetSpec(spec);
|
|
// nsEscapeHTML is good enough, because we only need to get
|
|
// quotes, ampersands, and angle brackets
|
|
char* escapedSpec = nsEscapeHTML(spec.get());
|
|
if (escapedSpec)
|
|
base += escapedSpec;
|
|
NS_Free(escapedSpec);
|
|
base.Append(NS_LITERAL_CSTRING("\""));
|
|
tagStack.AppendElement(NS_ConvertUTF8toUTF16(base));
|
|
} else {
|
|
tagStack.AppendElement(NS_LITERAL_STRING(XHTML_DIV_TAG));
|
|
}
|
|
}
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsCOMPtr<nsIContent> fragment;
|
|
if (aIsXML) {
|
|
rv = nsContentUtils::ParseFragmentXML(aFragment,
|
|
document,
|
|
tagStack,
|
|
true,
|
|
aReturn);
|
|
fragment = do_QueryInterface(*aReturn);
|
|
} else {
|
|
NS_NewDocumentFragment(aReturn,
|
|
document->NodeInfoManager());
|
|
fragment = do_QueryInterface(*aReturn);
|
|
rv = nsContentUtils::ParseFragmentHTML(aFragment,
|
|
fragment,
|
|
nsGkAtoms::body,
|
|
kNameSpaceID_XHTML,
|
|
false,
|
|
true);
|
|
// Now, set the base URI on all subtree roots.
|
|
if (aBaseURI) {
|
|
aBaseURI->GetSpec(spec);
|
|
nsAutoString spec16;
|
|
CopyUTF8toUTF16(spec, spec16);
|
|
nsIContent* node = fragment->GetFirstChild();
|
|
while (node) {
|
|
if (node->IsElement()) {
|
|
node->SetAttr(kNameSpaceID_XML,
|
|
nsGkAtoms::base,
|
|
nsGkAtoms::xml,
|
|
spec16,
|
|
false);
|
|
}
|
|
node = node->GetNextSibling();
|
|
}
|
|
}
|
|
}
|
|
if (fragment) {
|
|
nsTreeSanitizer sanitizer(aFlags);
|
|
sanitizer.Sanitize(fragment);
|
|
}
|
|
}
|
|
|
|
if (scripts_enabled)
|
|
loader->SetEnabled(true);
|
|
|
|
return rv;
|
|
}
|