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Don't block the parser on scripts we'll never execute. Bug 371743, r+sr=sicking

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This commit is contained in:
bzbarsky@mit.edu 2007-04-11 13:18:11 -07:00
parent 076b7d4a14
commit 65e1a1fadf
1 changed files with 57 additions and 58 deletions
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115
content/base/src/nsScriptLoader.cpp
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@ -252,16 +252,17 @@ nsScriptLoader::ProcessScriptElement(nsIScriptElement *aElement)
// disabled.
// XXX is this different from the mDocument->IsScriptEnabled() call?
nsIScriptGlobalObject *globalObject = mDocument->GetScriptGlobalObject();
if (globalObject)
{
nsIScriptContext *context = globalObject->GetScriptContext(
nsIProgrammingLanguage::JAVASCRIPT);
if (!globalObject) {
return NS_ERROR_NOT_AVAILABLE;
}
nsIScriptContext *context = globalObject->GetScriptContext(
nsIProgrammingLanguage::JAVASCRIPT);
// If scripts aren't enabled in the current context, there's no
// point in going on.
if (context && !context->GetScriptsEnabled()) {
return NS_ERROR_NOT_AVAILABLE;
}
// If scripts aren't enabled in the current context, there's no
// point in going on.
if (!context || !context->GetScriptsEnabled()) {
return NS_ERROR_NOT_AVAILABLE;
}
// Default script language is whatever the root content specifies
@ -423,57 +424,55 @@ nsScriptLoader::ProcessScriptElement(nsIScriptElement *aElement)
NS_ENSURE_SUCCESS(rv, rv);
// After the security manager, the content-policy stuff gets a veto
if (globalObject) {
PRInt16 shouldLoad = nsIContentPolicy::ACCEPT;
nsIURI *docURI = mDocument->GetDocumentURI();
rv = NS_CheckContentLoadPolicy(nsIContentPolicy::TYPE_SCRIPT,
scriptURI,
docURI,
aElement,
NS_LossyConvertUTF16toASCII(type),
nsnull, //extra
&shouldLoad,
nsContentUtils::GetContentPolicy());
if (NS_FAILED(rv) || NS_CP_REJECTED(shouldLoad)) {
if (NS_FAILED(rv) || shouldLoad != nsIContentPolicy::REJECT_TYPE) {
return NS_ERROR_CONTENT_BLOCKED;
}
return NS_ERROR_CONTENT_BLOCKED_SHOW_ALT;
PRInt16 shouldLoad = nsIContentPolicy::ACCEPT;
nsIURI *docURI = mDocument->GetDocumentURI();
rv = NS_CheckContentLoadPolicy(nsIContentPolicy::TYPE_SCRIPT,
scriptURI,
docURI,
aElement,
NS_LossyConvertUTF16toASCII(type),
nsnull, //extra
&shouldLoad,
nsContentUtils::GetContentPolicy());
if (NS_FAILED(rv) || NS_CP_REJECTED(shouldLoad)) {
if (NS_FAILED(rv) || shouldLoad != nsIContentPolicy::REJECT_TYPE) {
return NS_ERROR_CONTENT_BLOCKED;
}
request->mURI = scriptURI;
request->mIsInline = PR_FALSE;
request->mLoading = PR_TRUE;
nsCOMPtr<nsILoadGroup> loadGroup = mDocument->GetDocumentLoadGroup();
nsCOMPtr<nsIStreamLoader> loader;
nsCOMPtr<nsPIDOMWindow> window(do_QueryInterface(globalObject));
nsIDocShell *docshell = window->GetDocShell();
nsCOMPtr<nsIInterfaceRequestor> prompter(do_QueryInterface(docshell));
nsCOMPtr<nsIChannel> channel;
rv = NS_NewChannel(getter_AddRefs(channel),
scriptURI, nsnull, loadGroup,
prompter, nsIRequest::LOAD_NORMAL);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
if (httpChannel) {
// HTTP content negotation has little value in this context.
httpChannel->SetRequestHeader(NS_LITERAL_CSTRING("Accept"),
NS_LITERAL_CSTRING("*/*"),
PR_FALSE);
httpChannel->SetReferrer(mDocument->GetDocumentURI());
}
rv = NS_NewStreamLoader(getter_AddRefs(loader), this);
NS_ENSURE_SUCCESS(rv, rv);
rv = channel->AsyncOpen(loader, request);
NS_ENSURE_SUCCESS(rv, rv);
return NS_ERROR_CONTENT_BLOCKED_SHOW_ALT;
}
request->mURI = scriptURI;
request->mIsInline = PR_FALSE;
request->mLoading = PR_TRUE;
nsCOMPtr<nsILoadGroup> loadGroup = mDocument->GetDocumentLoadGroup();
nsCOMPtr<nsIStreamLoader> loader;
nsCOMPtr<nsPIDOMWindow> window(do_QueryInterface(globalObject));
nsIDocShell *docshell = window->GetDocShell();
nsCOMPtr<nsIInterfaceRequestor> prompter(do_QueryInterface(docshell));
nsCOMPtr<nsIChannel> channel;
rv = NS_NewChannel(getter_AddRefs(channel),
scriptURI, nsnull, loadGroup,
prompter, nsIRequest::LOAD_NORMAL);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
if (httpChannel) {
// HTTP content negotation has little value in this context.
httpChannel->SetRequestHeader(NS_LITERAL_CSTRING("Accept"),
NS_LITERAL_CSTRING("*/*"),
PR_FALSE);
httpChannel->SetReferrer(mDocument->GetDocumentURI());
}
rv = NS_NewStreamLoader(getter_AddRefs(loader), this);
NS_ENSURE_SUCCESS(rv, rv);
rv = channel->AsyncOpen(loader, request);
NS_ENSURE_SUCCESS(rv, rv);
} else {
request->mLoading = PR_FALSE;
request->mIsInline = PR_TRUE;