2001-05-17 05:20:51 +00:00
|
|
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
|
|
/*
|
|
|
|
* 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.
|
|
|
|
*
|
|
|
|
* The Initial Developer of the Original Code is Netscape
|
|
|
|
* Communications. Portions created by Netscape Communications are
|
|
|
|
* Copyright (C) 2001 by Netscape Communications. All
|
|
|
|
* Rights Reserved.
|
|
|
|
*
|
|
|
|
* Contributor(s):
|
|
|
|
* Vidur Apparao <vidur@netscape.com> (original author)
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "nsScriptLoader.h"
|
|
|
|
#include "nsIDOMCharacterData.h"
|
|
|
|
#include "nsParserUtils.h"
|
|
|
|
#include "nsICharsetConverterManager.h"
|
|
|
|
#include "nsIUnicodeDecoder.h"
|
|
|
|
#include "nsICharsetAlias.h"
|
|
|
|
#include "nsIContent.h"
|
|
|
|
#include "nsHTMLAtoms.h"
|
|
|
|
#include "nsNetUtil.h"
|
|
|
|
#include "nsIScriptGlobalObject.h"
|
2001-07-16 02:40:48 +00:00
|
|
|
#include "nsIScriptContext.h"
|
2001-05-17 05:20:51 +00:00
|
|
|
#include "nsINodeInfo.h"
|
|
|
|
#include "nsIScriptSecurityManager.h"
|
|
|
|
#include "nsIPrincipal.h"
|
|
|
|
#include "nsContentPolicyUtils.h"
|
2001-05-21 22:40:10 +00:00
|
|
|
#include "nsIDOMWindow.h"
|
2001-05-17 05:20:51 +00:00
|
|
|
#include "nsIHttpChannel.h"
|
|
|
|
#include "nsIScriptElement.h"
|
|
|
|
#include "nsIDocShell.h"
|
|
|
|
#include "jsapi.h"
|
2003-03-04 12:12:48 +00:00
|
|
|
#include "nsContentUtils.h"
|
|
|
|
#include "nsUnicharUtils.h"
|
2003-07-11 22:47:17 +00:00
|
|
|
#include "nsAutoPtr.h"
|
2003-02-28 05:47:36 +00:00
|
|
|
|
|
|
|
static NS_DEFINE_CID(kCharsetAliasCID, NS_CHARSETALIAS_CID);
|
2001-05-17 05:20:51 +00:00
|
|
|
static NS_DEFINE_CID(kCharsetConverterManagerCID, NS_ICHARSETCONVERTERMANAGER_CID);
|
|
|
|
|
|
|
|
//////////////////////////////////////////////////////////////
|
|
|
|
//
|
|
|
|
//////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
//////////////////////////////////////////////////////////////
|
|
|
|
// Per-request data structure
|
|
|
|
//////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
class nsScriptLoadRequest : public nsISupports {
|
|
|
|
public:
|
|
|
|
nsScriptLoadRequest(nsIDOMHTMLScriptElement* aElement,
|
|
|
|
nsIScriptLoaderObserver* aObserver,
|
|
|
|
const char* aVersionString);
|
2001-05-17 05:54:16 +00:00
|
|
|
virtual ~nsScriptLoadRequest();
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
NS_DECL_ISUPPORTS
|
|
|
|
|
|
|
|
void FireScriptAvailable(nsresult aResult,
|
|
|
|
const nsAFlatString& aScript);
|
|
|
|
void FireScriptEvaluated(nsresult aResult);
|
|
|
|
|
|
|
|
nsCOMPtr<nsIDOMHTMLScriptElement> mElement;
|
|
|
|
nsCOMPtr<nsIScriptLoaderObserver> mObserver;
|
2002-10-11 00:38:29 +00:00
|
|
|
PRPackedBool mLoading; // Are we still waiting for a load to complete?
|
|
|
|
PRPackedBool mWasPending; // Processed immediately or pending
|
|
|
|
PRPackedBool mIsInline; // Is the script inline or loaded?
|
2001-05-17 05:20:51 +00:00
|
|
|
// nsSharableString mScriptText; // Holds script for loaded scripts
|
|
|
|
nsString mScriptText;
|
|
|
|
const char* mJSVersion; // We don't own this string
|
|
|
|
nsCOMPtr<nsIURI> mURI;
|
|
|
|
PRInt32 mLineNo;
|
|
|
|
};
|
|
|
|
|
|
|
|
nsScriptLoadRequest::nsScriptLoadRequest(nsIDOMHTMLScriptElement* aElement,
|
|
|
|
nsIScriptLoaderObserver* aObserver,
|
|
|
|
const char* aVersionString) :
|
|
|
|
mElement(aElement), mObserver(aObserver),
|
2001-05-17 05:54:16 +00:00
|
|
|
mLoading(PR_TRUE), mWasPending(PR_FALSE),
|
|
|
|
mIsInline(PR_TRUE), mJSVersion(aVersionString), mLineNo(1)
|
2001-05-17 05:20:51 +00:00
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
nsScriptLoadRequest::~nsScriptLoadRequest()
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2002-01-08 06:32:36 +00:00
|
|
|
|
|
|
|
// The nsScriptLoadRequest is passed as the context to necko, and thus
|
|
|
|
// it needs to be threadsafe. Necko won't do anything with this
|
|
|
|
// context, but it will AddRef and Release it on other threads.
|
|
|
|
|
|
|
|
NS_IMPL_THREADSAFE_ISUPPORTS0(nsScriptLoadRequest)
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
void
|
|
|
|
nsScriptLoadRequest::FireScriptAvailable(nsresult aResult,
|
|
|
|
const nsAFlatString& aScript)
|
|
|
|
{
|
|
|
|
if (mObserver) {
|
|
|
|
mObserver->ScriptAvailable(aResult, mElement, mIsInline, mWasPending,
|
|
|
|
mURI, mLineNo,
|
|
|
|
aScript);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
nsScriptLoadRequest::FireScriptEvaluated(nsresult aResult)
|
|
|
|
{
|
|
|
|
if (mObserver) {
|
|
|
|
mObserver->ScriptEvaluated(aResult, mElement, mIsInline, mWasPending);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//////////////////////////////////////////////////////////////
|
|
|
|
//
|
|
|
|
//////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
nsScriptLoader::nsScriptLoader()
|
2002-10-11 00:38:29 +00:00
|
|
|
: mDocument(nsnull), mEnabled(PR_TRUE)
|
2001-05-17 05:20:51 +00:00
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
nsScriptLoader::~nsScriptLoader()
|
|
|
|
{
|
|
|
|
mObservers.Clear();
|
|
|
|
|
2003-07-11 22:47:17 +00:00
|
|
|
PRInt32 count = mPendingRequests.Count();
|
|
|
|
for (PRInt32 i = 0; i < count; i++) {
|
|
|
|
nsScriptLoadRequest* req = mPendingRequests[i];
|
|
|
|
if (req) {
|
2001-05-17 05:20:51 +00:00
|
|
|
req->FireScriptAvailable(NS_ERROR_ABORT, NS_LITERAL_STRING(""));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
mPendingRequests.Clear();
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_INTERFACE_MAP_BEGIN(nsScriptLoader)
|
|
|
|
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIScriptLoader)
|
|
|
|
NS_INTERFACE_MAP_ENTRY(nsIScriptLoader)
|
|
|
|
NS_INTERFACE_MAP_ENTRY(nsIStreamLoaderObserver)
|
|
|
|
NS_INTERFACE_MAP_END
|
|
|
|
|
|
|
|
NS_IMPL_ADDREF(nsScriptLoader)
|
|
|
|
NS_IMPL_RELEASE(nsScriptLoader)
|
|
|
|
|
|
|
|
/* void init (in nsIDocument aDocument); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsScriptLoader::Init(nsIDocument *aDocument)
|
|
|
|
{
|
|
|
|
mDocument = aDocument;
|
|
|
|
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* void dropDocumentReference (); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsScriptLoader::DropDocumentReference()
|
|
|
|
{
|
|
|
|
mDocument = nsnull;
|
|
|
|
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* void addObserver (in nsIScriptLoaderObserver aObserver); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsScriptLoader::AddObserver(nsIScriptLoaderObserver *aObserver)
|
|
|
|
{
|
|
|
|
NS_ENSURE_ARG(aObserver);
|
|
|
|
|
2003-07-11 22:47:17 +00:00
|
|
|
mObservers.AppendObject(aObserver);
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* void removeObserver (in nsIScriptLoaderObserver aObserver); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsScriptLoader::RemoveObserver(nsIScriptLoaderObserver *aObserver)
|
|
|
|
{
|
|
|
|
NS_ENSURE_ARG(aObserver);
|
|
|
|
|
2003-07-11 22:47:17 +00:00
|
|
|
mObservers.RemoveObject(aObserver);
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
PRBool
|
|
|
|
nsScriptLoader::InNonScriptingContainer(nsIDOMHTMLScriptElement* aScriptElement)
|
|
|
|
{
|
|
|
|
nsCOMPtr<nsIDOMNode> node(do_QueryInterface(aScriptElement));
|
|
|
|
nsCOMPtr<nsIDOMNode> parent;
|
|
|
|
|
|
|
|
node->GetParentNode(getter_AddRefs(parent));
|
|
|
|
while (parent) {
|
|
|
|
nsCOMPtr<nsIContent> content(do_QueryInterface(parent));
|
|
|
|
if (!content) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
nsCOMPtr<nsINodeInfo> nodeInfo;
|
2003-06-13 20:10:01 +00:00
|
|
|
content->GetNodeInfo(getter_AddRefs(nodeInfo));
|
2001-05-17 05:20:51 +00:00
|
|
|
NS_ASSERTION(nodeInfo, "element without node info");
|
|
|
|
|
|
|
|
if (nodeInfo) {
|
2003-06-13 20:10:01 +00:00
|
|
|
nsCOMPtr<nsIAtom> localName = nodeInfo->GetNameAtom();
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
// XXX noframes and noembed are currently unconditionally not
|
|
|
|
// displayed and processed. This might change if we support either
|
|
|
|
// prefs or per-document container settings for not allowing
|
|
|
|
// frames or plugins.
|
|
|
|
if (content->IsContentOfType(nsIContent::eHTML) &&
|
|
|
|
((localName.get() == nsHTMLAtoms::iframe) ||
|
|
|
|
(localName.get() == nsHTMLAtoms::noframes) ||
|
|
|
|
(localName.get() == nsHTMLAtoms::noembed))) {
|
|
|
|
return PR_TRUE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
node = parent;
|
|
|
|
node->GetParentNode(getter_AddRefs(parent));
|
|
|
|
}
|
|
|
|
|
|
|
|
return PR_FALSE;
|
|
|
|
}
|
|
|
|
|
2003-03-04 12:12:48 +00:00
|
|
|
// Helper method for checking if the script element is an event-handler
|
|
|
|
// This means that it has both a for-attribute and a event-attribute.
|
|
|
|
// Also, if the for-attribute has a value that matches "\s*window\s*",
|
|
|
|
// and the event-attribute matches "\s*onload([ \(].*)?" then it isn't an
|
|
|
|
// eventhandler. (both matches are case insensitive).
|
|
|
|
// This is how IE seems to filter out a window's onload handler from a
|
|
|
|
// <script for=... event=...> element.
|
|
|
|
|
|
|
|
PRBool
|
|
|
|
nsScriptLoader::IsScriptEventHandler(nsIDOMHTMLScriptElement *aScriptElement)
|
|
|
|
{
|
|
|
|
nsCOMPtr<nsIContent> contElement = do_QueryInterface(aScriptElement);
|
|
|
|
if (!contElement ||
|
|
|
|
!contElement->HasAttr(kNameSpaceID_None, nsHTMLAtoms::_event) ||
|
|
|
|
!contElement->HasAttr(kNameSpaceID_None, nsHTMLAtoms::_for)) {
|
|
|
|
return PR_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
nsAutoString str;
|
|
|
|
nsresult rv = contElement->GetAttr(kNameSpaceID_None, nsHTMLAtoms::_for,
|
|
|
|
str);
|
|
|
|
NS_ENSURE_SUCCESS(rv, PR_FALSE);
|
|
|
|
|
|
|
|
const nsAString& for_str = nsContentUtils::TrimWhitespace(str);
|
|
|
|
|
|
|
|
if (!for_str.Equals(NS_LITERAL_STRING("window"),
|
|
|
|
nsCaseInsensitiveStringComparator())) {
|
|
|
|
return PR_TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
// We found for="window", now check for event="onload".
|
|
|
|
|
|
|
|
rv = contElement->GetAttr(kNameSpaceID_None, nsHTMLAtoms::_event, str);
|
|
|
|
NS_ENSURE_SUCCESS(rv, PR_FALSE);
|
|
|
|
|
|
|
|
const nsAString& event_str = nsContentUtils::TrimWhitespace(str, PR_FALSE);
|
|
|
|
|
|
|
|
if (event_str.Length() < 6) {
|
|
|
|
// String too short, can't be "onload".
|
|
|
|
|
|
|
|
return PR_TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!Substring(event_str, 0, 6).Equals(NS_LITERAL_STRING("onload"),
|
|
|
|
nsCaseInsensitiveStringComparator())) {
|
|
|
|
// It ain't "onload.*".
|
|
|
|
|
|
|
|
return PR_TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
nsAutoString::const_iterator start, end;
|
|
|
|
event_str.BeginReading(start);
|
|
|
|
event_str.EndReading(end);
|
|
|
|
|
|
|
|
start.advance(6); // advance past "onload"
|
|
|
|
|
|
|
|
if (start != end && *start != '(' && *start != ' ') {
|
|
|
|
// We got onload followed by something other than space or
|
|
|
|
// '('. Not good enough.
|
|
|
|
|
|
|
|
return PR_TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
return PR_FALSE;
|
|
|
|
}
|
|
|
|
|
2001-05-17 05:20:51 +00:00
|
|
|
/* void processScriptElement (in nsIDOMHTMLScriptElement aElement, in nsIScriptLoaderObserver aObserver); */
|
|
|
|
NS_IMETHODIMP
|
|
|
|
nsScriptLoader::ProcessScriptElement(nsIDOMHTMLScriptElement *aElement,
|
|
|
|
nsIScriptLoaderObserver *aObserver)
|
|
|
|
{
|
|
|
|
NS_ENSURE_ARG(aElement);
|
|
|
|
|
|
|
|
nsresult rv = NS_OK;
|
|
|
|
|
|
|
|
// We need a document to evaluate scripts.
|
|
|
|
if (!mDocument) {
|
|
|
|
return FireErrorNotification(NS_ERROR_FAILURE, aElement, aObserver);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Check to see that the element is not in a container that
|
|
|
|
// suppresses script evaluation within it.
|
2002-10-11 00:38:29 +00:00
|
|
|
if (!mEnabled || InNonScriptingContainer(aElement)) {
|
2001-05-17 05:20:51 +00:00
|
|
|
return FireErrorNotification(NS_ERROR_NOT_AVAILABLE, aElement, aObserver);
|
|
|
|
}
|
|
|
|
|
2003-03-04 12:12:48 +00:00
|
|
|
// Check that the script is not an eventhandler
|
|
|
|
if (IsScriptEventHandler(aElement)) {
|
|
|
|
return FireErrorNotification(NS_CONTENT_SCRIPT_IS_EVENTHANDLER, aElement,
|
|
|
|
aObserver);
|
|
|
|
}
|
|
|
|
|
2001-05-17 05:20:51 +00:00
|
|
|
// See if script evaluation is enabled.
|
|
|
|
PRBool scriptsEnabled = PR_TRUE;
|
|
|
|
nsCOMPtr<nsIScriptGlobalObject> globalObject;
|
|
|
|
mDocument->GetScriptGlobalObject(getter_AddRefs(globalObject));
|
|
|
|
if (globalObject)
|
|
|
|
{
|
|
|
|
nsCOMPtr<nsIScriptContext> context;
|
|
|
|
if (NS_SUCCEEDED(globalObject->GetContext(getter_AddRefs(context)))
|
|
|
|
&& context)
|
|
|
|
context->GetScriptsEnabled(&scriptsEnabled);
|
|
|
|
}
|
|
|
|
|
|
|
|
// If scripts aren't enabled there's no point in going on.
|
|
|
|
if (!scriptsEnabled) {
|
|
|
|
return FireErrorNotification(NS_ERROR_NOT_AVAILABLE, aElement, aObserver);
|
|
|
|
}
|
|
|
|
|
|
|
|
PRBool isJavaScript = PR_TRUE;
|
|
|
|
const char* jsVersionString = nsnull;
|
2002-05-06 22:59:42 +00:00
|
|
|
nsAutoString language, type, src;
|
|
|
|
|
|
|
|
// Check the language attribute first, so type can trump language.
|
|
|
|
aElement->GetAttribute(NS_LITERAL_STRING("language"), language);
|
|
|
|
if (!language.IsEmpty()) {
|
|
|
|
isJavaScript = nsParserUtils::IsJavaScriptLanguage(language, &jsVersionString);
|
|
|
|
}
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
// Check the type attribute to determine language and version.
|
|
|
|
aElement->GetType(type);
|
|
|
|
if (!type.IsEmpty()) {
|
|
|
|
nsAutoString mimeType;
|
|
|
|
nsAutoString params;
|
2002-04-05 11:29:40 +00:00
|
|
|
nsParserUtils::SplitMimeType(type, mimeType, params);
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
isJavaScript = mimeType.EqualsIgnoreCase("application/x-javascript") ||
|
|
|
|
mimeType.EqualsIgnoreCase("text/javascript");
|
|
|
|
if (isJavaScript) {
|
|
|
|
JSVersion jsVersion = JSVERSION_DEFAULT;
|
|
|
|
if (params.Find("version=", PR_TRUE) == 0) {
|
|
|
|
if (params.Length() != 11 || params[8] != '1' || params[9] != '.')
|
|
|
|
jsVersion = JSVERSION_UNKNOWN;
|
|
|
|
else switch (params[10]) {
|
|
|
|
case '0': jsVersion = JSVERSION_1_0; break;
|
|
|
|
case '1': jsVersion = JSVERSION_1_1; break;
|
|
|
|
case '2': jsVersion = JSVERSION_1_2; break;
|
|
|
|
case '3': jsVersion = JSVERSION_1_3; break;
|
|
|
|
case '4': jsVersion = JSVERSION_1_4; break;
|
|
|
|
case '5': jsVersion = JSVERSION_1_5; break;
|
|
|
|
default: jsVersion = JSVERSION_UNKNOWN;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
jsVersionString = JS_VersionToString(jsVersion);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// If this isn't JavaScript, we don't know how to evaluate.
|
|
|
|
// XXX How and where should we deal with other scripting languages??
|
|
|
|
if (!isJavaScript) {
|
|
|
|
return FireErrorNotification(NS_ERROR_NOT_AVAILABLE, aElement, aObserver);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Create a request object for this script
|
2003-07-11 22:47:17 +00:00
|
|
|
nsRefPtr<nsScriptLoadRequest> request = new nsScriptLoadRequest(aElement, aObserver, jsVersionString);
|
2001-05-17 05:20:51 +00:00
|
|
|
if (!request) {
|
|
|
|
return FireErrorNotification(NS_ERROR_OUT_OF_MEMORY, aElement, aObserver);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Check to see if we have a src attribute.
|
|
|
|
aElement->GetSrc(src);
|
|
|
|
if (!src.IsEmpty()) {
|
|
|
|
nsCOMPtr<nsIURI> baseURI, scriptURI;
|
|
|
|
|
|
|
|
// Use the SRC attribute value to load the URL
|
2003-07-03 02:45:34 +00:00
|
|
|
nsCOMPtr<nsIContent> content(do_QueryInterface(aElement));
|
|
|
|
NS_ASSERTION(content, "nsIDOMHTMLScriptElement not implementing nsIContent");
|
|
|
|
content->GetBaseURL(getter_AddRefs(baseURI));
|
2002-03-06 07:48:55 +00:00
|
|
|
rv = NS_NewURI(getter_AddRefs(scriptURI), src, nsnull, baseURI);
|
2001-05-17 05:20:51 +00:00
|
|
|
if (NS_FAILED(rv)) {
|
|
|
|
return FireErrorNotification(rv, aElement, aObserver);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Check that the containing page is allowed to load this URI.
|
|
|
|
nsCOMPtr<nsIScriptSecurityManager> securityManager(do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv));
|
|
|
|
if (NS_FAILED(rv)) {
|
|
|
|
return FireErrorNotification(rv, aElement, aObserver);
|
|
|
|
}
|
2002-11-05 03:45:28 +00:00
|
|
|
nsCOMPtr<nsIURI> docURI;
|
|
|
|
mDocument->GetDocumentURL(getter_AddRefs(docURI));
|
|
|
|
if (!docURI) {
|
|
|
|
return FireErrorNotification(NS_ERROR_UNEXPECTED, aElement, aObserver);
|
|
|
|
}
|
|
|
|
rv = securityManager->CheckLoadURI(docURI, scriptURI,
|
2001-05-17 05:20:51 +00:00
|
|
|
nsIScriptSecurityManager::ALLOW_CHROME);
|
|
|
|
if (NS_FAILED(rv)) {
|
|
|
|
return FireErrorNotification(rv, aElement, aObserver);
|
|
|
|
}
|
|
|
|
|
|
|
|
// After the security manager, the content-policy stuff gets a veto
|
2001-05-21 22:40:10 +00:00
|
|
|
if (globalObject) {
|
|
|
|
nsCOMPtr<nsIDOMWindow> domWin(do_QueryInterface(globalObject));
|
|
|
|
|
|
|
|
PRBool shouldLoad = PR_TRUE;
|
|
|
|
rv = NS_CheckContentLoadPolicy(nsIContentPolicy::SCRIPT,
|
|
|
|
scriptURI, aElement, domWin, &shouldLoad);
|
|
|
|
if (NS_SUCCEEDED(rv) && !shouldLoad) {
|
|
|
|
return FireErrorNotification(NS_ERROR_NOT_AVAILABLE, aElement, aObserver);
|
|
|
|
}
|
2001-05-17 05:20:51 +00:00
|
|
|
|
2001-08-10 01:46:41 +00:00
|
|
|
request->mURI = scriptURI;
|
|
|
|
request->mIsInline = PR_FALSE;
|
|
|
|
request->mWasPending = PR_TRUE;
|
|
|
|
request->mLoading = PR_TRUE;
|
2001-05-17 05:20:51 +00:00
|
|
|
|
2001-08-10 01:46:41 +00:00
|
|
|
// Add the request to our pending requests list
|
2003-07-11 22:47:17 +00:00
|
|
|
mPendingRequests.AppendObject(request);
|
2001-05-17 05:20:51 +00:00
|
|
|
|
2001-08-10 01:46:41 +00:00
|
|
|
nsCOMPtr<nsILoadGroup> loadGroup;
|
|
|
|
nsCOMPtr<nsIStreamLoader> loader;
|
2001-05-17 05:20:51 +00:00
|
|
|
|
2001-08-10 01:46:41 +00:00
|
|
|
(void) mDocument->GetDocumentLoadGroup(getter_AddRefs(loadGroup));
|
2001-05-17 05:20:51 +00:00
|
|
|
|
2001-08-10 01:46:41 +00:00
|
|
|
nsCOMPtr<nsIDocShell> docshell;
|
|
|
|
rv = globalObject->GetDocShell(getter_AddRefs(docshell));
|
|
|
|
if (NS_FAILED(rv)) {
|
2003-07-11 22:47:17 +00:00
|
|
|
mPendingRequests.RemoveObject(request);
|
2001-08-10 01:46:41 +00:00
|
|
|
return FireErrorNotification(rv, aElement, aObserver);
|
|
|
|
}
|
2001-05-17 05:20:51 +00:00
|
|
|
|
2002-01-08 06:32:36 +00:00
|
|
|
// Get the referrer url from the document
|
|
|
|
nsCOMPtr<nsIURI> documentURI;
|
|
|
|
mDocument->GetDocumentURL(getter_AddRefs(documentURI));
|
|
|
|
|
2001-08-10 01:46:41 +00:00
|
|
|
nsCOMPtr<nsIInterfaceRequestor> prompter(do_QueryInterface(docshell));
|
|
|
|
|
2002-01-08 06:32:36 +00:00
|
|
|
nsCOMPtr<nsIChannel> channel;
|
2002-09-27 04:22:13 +00:00
|
|
|
rv = NS_NewChannel(getter_AddRefs(channel),
|
|
|
|
scriptURI, nsnull, loadGroup,
|
|
|
|
prompter, nsIRequest::LOAD_NORMAL);
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
|
|
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
|
|
|
|
if (httpChannel) {
|
|
|
|
// HTTP content negotation has little value in this context.
|
|
|
|
httpChannel->SetRequestHeader(NS_LITERAL_CSTRING("Accept"),
|
2002-11-22 07:40:16 +00:00
|
|
|
NS_LITERAL_CSTRING("*/*"),
|
|
|
|
PR_FALSE);
|
2002-09-27 04:22:13 +00:00
|
|
|
httpChannel->SetReferrer(documentURI);
|
|
|
|
}
|
2003-07-11 22:47:17 +00:00
|
|
|
rv = NS_NewStreamLoader(getter_AddRefs(loader), channel, this, request);
|
2002-09-27 04:22:13 +00:00
|
|
|
}
|
2001-08-10 01:46:41 +00:00
|
|
|
if (NS_FAILED(rv)) {
|
2003-07-11 22:47:17 +00:00
|
|
|
mPendingRequests.RemoveObject(request);
|
2001-08-10 01:46:41 +00:00
|
|
|
return FireErrorNotification(rv, aElement, aObserver);
|
|
|
|
}
|
2001-05-17 05:20:51 +00:00
|
|
|
}
|
2001-08-10 01:46:41 +00:00
|
|
|
} else {
|
2001-05-17 05:20:51 +00:00
|
|
|
request->mLoading = PR_FALSE;
|
|
|
|
request->mIsInline = PR_TRUE;
|
2001-06-20 03:27:48 +00:00
|
|
|
mDocument->GetDocumentURL(getter_AddRefs(request->mURI));
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
nsCOMPtr<nsIScriptElement> scriptElement(do_QueryInterface(aElement));
|
|
|
|
if (scriptElement) {
|
|
|
|
PRUint32 lineNumber;
|
|
|
|
scriptElement->GetLineNumber(&lineNumber);
|
|
|
|
request->mLineNo = lineNumber;
|
|
|
|
}
|
|
|
|
|
|
|
|
// If we've got existing pending requests, add ourselves
|
|
|
|
// to this list.
|
2003-07-11 22:47:17 +00:00
|
|
|
if (mPendingRequests.Count() > 0) {
|
2001-05-17 05:20:51 +00:00
|
|
|
request->mWasPending = PR_TRUE;
|
2003-07-11 22:47:17 +00:00
|
|
|
mPendingRequests.AppendObject(request);
|
2001-05-17 05:20:51 +00:00
|
|
|
}
|
|
|
|
else {
|
|
|
|
request->mWasPending = PR_FALSE;
|
|
|
|
rv = ProcessRequest(request);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
nsresult
|
|
|
|
nsScriptLoader::FireErrorNotification(nsresult aResult,
|
|
|
|
nsIDOMHTMLScriptElement* aElement,
|
|
|
|
nsIScriptLoaderObserver* aObserver)
|
|
|
|
{
|
2003-07-11 22:47:17 +00:00
|
|
|
PRInt32 count = mObservers.Count();
|
|
|
|
for (PRInt32 i = 0; i < count; i++) {
|
|
|
|
nsCOMPtr<nsIScriptLoaderObserver> observer = mObservers[i];
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
if (observer) {
|
|
|
|
observer->ScriptAvailable(aResult, aElement,
|
|
|
|
PR_TRUE, PR_FALSE,
|
|
|
|
nsnull, 0,
|
|
|
|
NS_LITERAL_STRING(""));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (aObserver) {
|
|
|
|
aObserver->ScriptAvailable(aResult, aElement,
|
|
|
|
PR_TRUE, PR_FALSE,
|
|
|
|
nsnull, 0,
|
|
|
|
NS_LITERAL_STRING(""));
|
|
|
|
}
|
|
|
|
|
|
|
|
return aResult;
|
|
|
|
}
|
|
|
|
|
|
|
|
nsresult
|
|
|
|
nsScriptLoader::ProcessRequest(nsScriptLoadRequest* aRequest)
|
|
|
|
{
|
|
|
|
NS_ENSURE_ARG(aRequest);
|
|
|
|
nsAFlatString* script;
|
|
|
|
nsAutoString textData;
|
|
|
|
|
|
|
|
// If there's no script text, we try to get it from the element
|
|
|
|
if (aRequest->mIsInline) {
|
|
|
|
// XXX This is inefficient - GetText makes multiple
|
|
|
|
// copies.
|
|
|
|
aRequest->mElement->GetText(textData);
|
|
|
|
|
|
|
|
script = &textData;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
script = &aRequest->mScriptText;
|
|
|
|
}
|
|
|
|
|
|
|
|
FireScriptAvailable(NS_OK, aRequest, *script);
|
|
|
|
nsresult rv = EvaluateScript(aRequest, *script);
|
|
|
|
FireScriptEvaluated(rv, aRequest);
|
|
|
|
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
nsScriptLoader::FireScriptAvailable(nsresult aResult,
|
|
|
|
nsScriptLoadRequest* aRequest,
|
|
|
|
const nsAFlatString& aScript)
|
|
|
|
{
|
2003-07-11 22:47:17 +00:00
|
|
|
PRInt32 count = mObservers.Count();
|
|
|
|
for (PRInt32 i = 0; i < count; i++) {
|
|
|
|
nsCOMPtr<nsIScriptLoaderObserver> observer = mObservers[i];
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
if (observer) {
|
|
|
|
observer->ScriptAvailable(aResult, aRequest->mElement,
|
|
|
|
aRequest->mIsInline, aRequest->mWasPending,
|
|
|
|
aRequest->mURI, aRequest->mLineNo,
|
|
|
|
aScript);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
aRequest->FireScriptAvailable(aResult, aScript);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
nsScriptLoader::FireScriptEvaluated(nsresult aResult,
|
|
|
|
nsScriptLoadRequest* aRequest)
|
|
|
|
{
|
2003-07-11 22:47:17 +00:00
|
|
|
PRInt32 count = mObservers.Count();
|
|
|
|
for (PRInt32 i = 0; i < count; i++) {
|
|
|
|
nsCOMPtr<nsIScriptLoaderObserver> observer = mObservers[i];
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
if (observer) {
|
|
|
|
observer->ScriptEvaluated(aResult, aRequest->mElement,
|
|
|
|
aRequest->mIsInline, aRequest->mWasPending);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
aRequest->FireScriptEvaluated(aResult);
|
|
|
|
}
|
|
|
|
|
|
|
|
nsresult
|
|
|
|
nsScriptLoader::EvaluateScript(nsScriptLoadRequest* aRequest,
|
|
|
|
const nsAFlatString& aScript)
|
|
|
|
{
|
|
|
|
nsresult rv = NS_OK;
|
|
|
|
|
2001-09-25 22:16:41 +00:00
|
|
|
// We need a document to evaluate scripts.
|
|
|
|
if (!mDocument) {
|
|
|
|
return NS_ERROR_FAILURE;
|
|
|
|
}
|
|
|
|
|
2001-05-17 05:20:51 +00:00
|
|
|
nsCOMPtr<nsIScriptGlobalObject> globalObject;
|
|
|
|
mDocument->GetScriptGlobalObject(getter_AddRefs(globalObject));
|
|
|
|
NS_ENSURE_TRUE(globalObject, NS_ERROR_FAILURE);
|
|
|
|
|
|
|
|
nsCOMPtr<nsIScriptContext> context;
|
|
|
|
rv = globalObject->GetContext(getter_AddRefs(context));
|
|
|
|
if (NS_FAILED(rv) || !context) {
|
|
|
|
return NS_ERROR_FAILURE;
|
|
|
|
}
|
|
|
|
|
|
|
|
nsCOMPtr<nsIPrincipal> principal;
|
|
|
|
mDocument->GetPrincipal(getter_AddRefs(principal));
|
|
|
|
// We can survive without a principal, but we really should
|
|
|
|
// have one.
|
|
|
|
NS_ASSERTION(principal, "principal required for document");
|
|
|
|
|
|
|
|
nsAutoString ret;
|
2002-03-06 07:48:55 +00:00
|
|
|
nsCAutoString url;
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
if (aRequest->mURI) {
|
2002-03-06 07:48:55 +00:00
|
|
|
rv = aRequest->mURI->GetSpec(url);
|
2001-05-17 05:20:51 +00:00
|
|
|
if (NS_FAILED(rv)) {
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
context->SetProcessingScriptTag(PR_TRUE);
|
|
|
|
|
|
|
|
PRBool isUndefined;
|
2002-03-06 07:48:55 +00:00
|
|
|
context->EvaluateString(aScript, nsnull, principal, url.get(),
|
2001-05-17 05:20:51 +00:00
|
|
|
aRequest->mLineNo, aRequest->mJSVersion,
|
|
|
|
ret, &isUndefined);
|
|
|
|
|
|
|
|
context->SetProcessingScriptTag(PR_FALSE);
|
|
|
|
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
nsScriptLoader::ProcessPendingReqests()
|
|
|
|
{
|
2003-07-11 22:47:17 +00:00
|
|
|
if (mPendingRequests.Count() == 0) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
nsRefPtr<nsScriptLoadRequest> request = mPendingRequests[0];
|
2001-05-17 05:20:51 +00:00
|
|
|
while (request && !request->mLoading) {
|
2003-07-11 22:47:17 +00:00
|
|
|
mPendingRequests.RemoveObjectAt(0);
|
2001-05-17 05:20:51 +00:00
|
|
|
ProcessRequest(request);
|
2003-07-11 22:47:17 +00:00
|
|
|
if (mPendingRequests.Count() == 0) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
request = mPendingRequests[0];
|
2001-05-17 05:20:51 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2002-09-18 19:44:19 +00:00
|
|
|
|
|
|
|
// This function is copied from nsParser.cpp. It was simplified though, unnecessary part is removed.
|
|
|
|
static PRBool
|
2003-06-11 18:16:03 +00:00
|
|
|
DetectByteOrderMark(const unsigned char* aBytes, PRInt32 aLen, nsCString& oCharset)
|
2002-09-18 19:44:19 +00:00
|
|
|
{
|
|
|
|
if (aLen < 2)
|
2002-09-18 22:05:09 +00:00
|
|
|
return PR_FALSE;
|
2002-09-18 19:44:19 +00:00
|
|
|
|
|
|
|
switch(aBytes[0]) {
|
|
|
|
case 0xEF:
|
|
|
|
if( aLen >= 3 && (0xBB==aBytes[1]) && (0xBF==aBytes[2])) {
|
|
|
|
// EF BB BF
|
|
|
|
// Win2K UTF-8 BOM
|
2003-06-11 18:16:03 +00:00
|
|
|
oCharset.Assign("UTF-8");
|
2002-09-18 19:44:19 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 0xFE:
|
|
|
|
if(0xFF==aBytes[1]) {
|
|
|
|
// FE FF
|
|
|
|
// UTF-16, big-endian
|
2003-06-11 18:16:03 +00:00
|
|
|
oCharset.Assign("UTF-16BE");
|
2002-09-18 19:44:19 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 0xFF:
|
|
|
|
if(0xFE==aBytes[1]) {
|
|
|
|
// FF FE
|
|
|
|
// UTF-16, little-endian
|
2003-06-11 18:16:03 +00:00
|
|
|
oCharset.Assign("UTF-16LE");
|
2002-09-18 19:44:19 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
} // switch
|
2003-05-23 21:34:47 +00:00
|
|
|
return !oCharset.IsEmpty();
|
2002-09-18 19:44:19 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2001-05-17 05:20:51 +00:00
|
|
|
NS_IMETHODIMP
|
|
|
|
nsScriptLoader::OnStreamComplete(nsIStreamLoader* aLoader,
|
|
|
|
nsISupports* aContext,
|
|
|
|
nsresult aStatus,
|
|
|
|
PRUint32 stringLen,
|
|
|
|
const char* string)
|
|
|
|
{
|
|
|
|
nsresult rv;
|
2003-07-11 22:47:17 +00:00
|
|
|
nsScriptLoadRequest* request = NS_STATIC_CAST(nsScriptLoadRequest*, aContext);
|
2001-05-17 05:20:51 +00:00
|
|
|
NS_ASSERTION(request, "null request in stream complete handler");
|
|
|
|
if (!request) {
|
|
|
|
return NS_ERROR_FAILURE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (NS_FAILED(aStatus)) {
|
2003-07-11 22:47:17 +00:00
|
|
|
mPendingRequests.RemoveObject(request);
|
2001-05-17 05:20:51 +00:00
|
|
|
FireScriptAvailable(aStatus, request, NS_LITERAL_STRING(""));
|
|
|
|
ProcessPendingReqests();
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
// If we don't have a document, then we need to abort further
|
|
|
|
// evaluation.
|
|
|
|
if (!mDocument) {
|
2003-07-11 22:47:17 +00:00
|
|
|
mPendingRequests.RemoveObject(request);
|
2001-05-17 05:20:51 +00:00
|
|
|
FireScriptAvailable(NS_ERROR_NOT_AVAILABLE, request,
|
|
|
|
NS_LITERAL_STRING(""));
|
|
|
|
ProcessPendingReqests();
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
2002-07-01 23:12:13 +00:00
|
|
|
// If the load returned an error page, then we need to abort
|
|
|
|
nsCOMPtr<nsIRequest> req;
|
|
|
|
rv = aLoader->GetRequest(getter_AddRefs(req));
|
|
|
|
NS_ASSERTION(req, "StreamLoader's request went away prematurely");
|
|
|
|
if (NS_FAILED(rv)) return rv; // XXX Should this remove the pending request?
|
|
|
|
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(request));
|
|
|
|
if (httpChannel) {
|
|
|
|
PRBool requestSucceeded;
|
|
|
|
rv = httpChannel->GetRequestSucceeded(&requestSucceeded);
|
|
|
|
if (NS_SUCCEEDED(rv) && !requestSucceeded) {
|
2003-07-11 22:47:17 +00:00
|
|
|
mPendingRequests.RemoveObject(request);
|
2002-07-01 23:12:13 +00:00
|
|
|
FireScriptAvailable(NS_ERROR_NOT_AVAILABLE, request,
|
|
|
|
NS_LITERAL_STRING(""));
|
|
|
|
ProcessPendingReqests();
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2001-05-17 05:20:51 +00:00
|
|
|
if (stringLen) {
|
2003-06-11 18:16:03 +00:00
|
|
|
nsCAutoString characterSet, preferred;
|
2001-05-17 05:20:51 +00:00
|
|
|
nsCOMPtr<nsIUnicodeDecoder> unicodeDecoder;
|
|
|
|
|
|
|
|
nsCOMPtr<nsIChannel> channel;
|
|
|
|
|
|
|
|
channel = do_QueryInterface(req);
|
2003-03-26 01:26:38 +00:00
|
|
|
nsAutoString charset;
|
2002-03-20 22:50:33 +00:00
|
|
|
if (channel) {
|
|
|
|
nsCAutoString charsetVal;
|
|
|
|
rv = channel->GetContentCharset(charsetVal);
|
2001-10-10 23:37:18 +00:00
|
|
|
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
2003-03-26 01:26:38 +00:00
|
|
|
charset = NS_ConvertASCIItoUCS2(charsetVal);
|
2001-05-17 05:20:51 +00:00
|
|
|
nsCOMPtr<nsICharsetAlias> calias(do_GetService(kCharsetAliasCID,&rv));
|
|
|
|
|
|
|
|
if(NS_SUCCEEDED(rv) && calias) {
|
2003-06-11 18:16:03 +00:00
|
|
|
NS_LossyConvertUCS2toASCII asciiCharset(charset);
|
|
|
|
|
|
|
|
rv = calias->GetPreferred(asciiCharset, preferred);
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
if(NS_SUCCEEDED(rv)) {
|
|
|
|
characterSet = preferred;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (NS_FAILED(rv) || characterSet.IsEmpty()) {
|
|
|
|
// Check the charset attribute to determine script charset.
|
|
|
|
request->mElement->GetCharset(charset);
|
|
|
|
if (!charset.IsEmpty()) {
|
|
|
|
// Get the preferred charset from charset alias service if there
|
|
|
|
// is one.
|
|
|
|
nsCOMPtr<nsICharsetAlias> calias(do_GetService(kCharsetAliasCID,&rv));
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
2003-06-11 18:16:03 +00:00
|
|
|
NS_LossyConvertUCS2toASCII asciiCharset(charset);
|
|
|
|
|
|
|
|
rv = calias->GetPreferred(asciiCharset, preferred);
|
2001-05-17 05:20:51 +00:00
|
|
|
|
|
|
|
if(NS_SUCCEEDED(rv)) {
|
|
|
|
characterSet = preferred;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (NS_FAILED(rv) || characterSet.IsEmpty()) {
|
2002-09-18 19:44:19 +00:00
|
|
|
DetectByteOrderMark((const unsigned char*)string, stringLen, characterSet);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (characterSet.IsEmpty()) {
|
2001-05-17 05:20:51 +00:00
|
|
|
// charset from document default
|
2003-06-17 16:40:34 +00:00
|
|
|
rv = mDocument->GetDocumentCharacterSet(characterSet);
|
2001-05-17 05:20:51 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "Could not get document charset!");
|
|
|
|
|
2002-02-01 21:36:00 +00:00
|
|
|
if (characterSet.IsEmpty()) {
|
|
|
|
// fall back to ISO-8851-1, see bug 118404
|
2003-06-11 18:16:03 +00:00
|
|
|
characterSet = NS_LITERAL_CSTRING("ISO-8859-1");
|
2002-02-01 21:36:00 +00:00
|
|
|
}
|
|
|
|
|
2001-05-17 05:20:51 +00:00
|
|
|
nsCOMPtr<nsICharsetConverterManager> charsetConv =
|
|
|
|
do_GetService(kCharsetConverterManagerCID, &rv);
|
|
|
|
|
|
|
|
if (NS_SUCCEEDED(rv) && charsetConv) {
|
2003-06-11 18:16:03 +00:00
|
|
|
rv = charsetConv->GetUnicodeDecoderRaw(characterSet.get(),
|
|
|
|
getter_AddRefs(unicodeDecoder));
|
2001-05-17 05:20:51 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// converts from the charset to unicode
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
|
|
PRInt32 unicodeLength = 0;
|
|
|
|
|
|
|
|
rv = unicodeDecoder->GetMaxLength(string, stringLen, &unicodeLength);
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
|
|
typedef nsSharedBufferHandle<PRUnichar>* HandlePtr;
|
|
|
|
typedef nsAString* StrPtr;
|
2001-05-17 17:27:01 +00:00
|
|
|
HandlePtr handle = NS_AllocateContiguousHandleWithData(HandlePtr(0), NS_STATIC_CAST(PRUint32, unicodeLength+1), StrPtr(0));
|
2001-05-17 05:20:51 +00:00
|
|
|
PRUnichar *ustr = (PRUnichar *)handle->DataStart();
|
|
|
|
|
2001-10-30 23:53:52 +00:00
|
|
|
PRInt32 consumedLength = 0;
|
|
|
|
PRInt32 originalLength = stringLen;
|
|
|
|
PRInt32 convertedLength = 0;
|
|
|
|
PRInt32 bufferLength = unicodeLength;
|
|
|
|
do {
|
|
|
|
rv = unicodeDecoder->Convert(string, (PRInt32 *) &stringLen, ustr,
|
|
|
|
&unicodeLength);
|
|
|
|
if (NS_FAILED(rv)) {
|
|
|
|
// if we failed, we consume one byte, replace it with U+FFFD
|
|
|
|
// and try the conversion again.
|
|
|
|
ustr[unicodeLength++] = (PRUnichar)0xFFFD;
|
|
|
|
ustr += unicodeLength;
|
|
|
|
|
|
|
|
unicodeDecoder->Reset();
|
|
|
|
}
|
|
|
|
string += ++stringLen;
|
|
|
|
consumedLength += stringLen;
|
|
|
|
stringLen = originalLength - consumedLength;
|
|
|
|
convertedLength += unicodeLength;
|
|
|
|
unicodeLength = bufferLength - convertedLength;
|
|
|
|
} while (NS_FAILED(rv) && (originalLength > consumedLength) && (bufferLength > convertedLength));
|
|
|
|
handle->DataEnd(handle->DataStart() + convertedLength);
|
2001-05-17 05:20:51 +00:00
|
|
|
nsSharableString tempStr(handle);
|
|
|
|
request->mScriptText = tempStr;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_ASSERTION(NS_SUCCEEDED(rv),
|
|
|
|
"Could not convert external JavaScript to Unicode!");
|
|
|
|
if (NS_FAILED(rv)) {
|
2003-07-11 22:47:17 +00:00
|
|
|
mPendingRequests.RemoveObject(request);
|
2001-05-17 05:20:51 +00:00
|
|
|
FireScriptAvailable(rv, request, NS_LITERAL_STRING(""));
|
|
|
|
ProcessPendingReqests();
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
//-- Merge the principal of the script file with that of the document
|
|
|
|
if (channel) {
|
|
|
|
nsCOMPtr<nsISupports> owner;
|
|
|
|
channel->GetOwner(getter_AddRefs(owner));
|
|
|
|
nsCOMPtr<nsIPrincipal> prin;
|
|
|
|
|
|
|
|
if (owner) {
|
|
|
|
prin = do_QueryInterface(owner, &rv);
|
|
|
|
}
|
|
|
|
|
|
|
|
rv = mDocument->AddPrincipal(prin);
|
|
|
|
if (NS_FAILED(rv)) {
|
2003-07-11 22:47:17 +00:00
|
|
|
mPendingRequests.RemoveObject(request);
|
2001-05-17 05:20:51 +00:00
|
|
|
FireScriptAvailable(rv, request, NS_LITERAL_STRING(""));
|
|
|
|
ProcessPendingReqests();
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// If we're not the first in the pending list, we mark ourselves
|
|
|
|
// as loaded and just stay on the list.
|
2003-07-11 22:47:17 +00:00
|
|
|
NS_ASSERTION(mPendingRequests.Count() > 0, "aContext is a pending request!");
|
|
|
|
if (mPendingRequests[0] != request) {
|
2001-05-17 05:20:51 +00:00
|
|
|
request->mLoading = PR_FALSE;
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
2003-07-11 22:47:17 +00:00
|
|
|
mPendingRequests.RemoveObject(request);
|
2001-05-17 05:20:51 +00:00
|
|
|
ProcessRequest(request);
|
|
|
|
|
|
|
|
// Process any pending requests
|
|
|
|
ProcessPendingReqests();
|
|
|
|
|
|
|
|
return NS_OK;
|
|
|
|
}
|
2001-05-25 07:03:04 +00:00
|
|
|
|
|
|
|
NS_IMETHODIMP
|
2002-10-11 00:38:29 +00:00
|
|
|
nsScriptLoader::GetEnabled(PRBool *aEnabled)
|
2001-05-25 07:03:04 +00:00
|
|
|
{
|
2002-10-11 00:38:29 +00:00
|
|
|
NS_ENSURE_ARG_POINTER(aEnabled);
|
|
|
|
*aEnabled = mEnabled;
|
2001-05-25 07:03:04 +00:00
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
2002-10-11 00:38:29 +00:00
|
|
|
nsScriptLoader::SetEnabled(PRBool aEnabled)
|
2001-05-25 07:03:04 +00:00
|
|
|
{
|
2002-10-11 00:38:29 +00:00
|
|
|
mEnabled = aEnabled;
|
2001-05-25 07:03:04 +00:00
|
|
|
return NS_OK;
|
|
|
|
}
|