static JSBool
setStepMode(JSContext *cx, unsigned argc, jsval *vp)
{
JSScript *script;
JS_DescribeScriptedCaller(cx, &script, NULL);
JS_ASSERT(script);
if (!JS_SetSingleStepMode(cx, script, true))
return false;
JS_SET_RVAL(cx, vp, JSVAL_VOID);
return true;
}
static bool
setStepMode(JSContext *cx, unsigned argc, jsval *vp)
{
JS::RootedScript script(cx);
JS_DescribeScriptedCaller(cx, &script, nullptr);
JS_ASSERT(script);
if (!JS_SetSingleStepMode(cx, script, true))
return false;
JS_SET_RVAL(cx, vp, JSVAL_VOID);
return true;
}
bool
nsJSUtils::GetCallingLocation(JSContext* aContext, const char* *aFilename,
uint32_t* aLineno)
{
JSScript* script = nullptr;
unsigned lineno = 0;
if (!JS_DescribeScriptedCaller(aContext, &script, &lineno)) {
return false;
}
*aFilename = ::JS_GetScriptFilename(aContext, script);
*aLineno = lineno;
return true;
}
nsresult
nsLocation::CheckURL(nsIURI* aURI, nsIDocShellLoadInfo** aLoadInfo)
{
*aLoadInfo = nullptr;
nsCOMPtr<nsIDocShell> docShell(do_QueryReferent(mDocShell));
NS_ENSURE_TRUE(docShell, NS_ERROR_NOT_AVAILABLE);
nsCOMPtr<nsISupports> owner;
nsCOMPtr<nsIURI> sourceURI;
if (JSContext *cx = nsContentUtils::GetCurrentJSContext()) {
// No cx means that there's no JS running, or at least no JS that
// was run through code that properly pushed a context onto the
// context stack (as all code that runs JS off of web pages
// does). We won't bother with security checks in this case, but
// we need to create the loadinfo etc.
// Get security manager.
nsIScriptSecurityManager* ssm = nsContentUtils::GetSecurityManager();
NS_ENSURE_STATE(ssm);
// Check to see if URI is allowed.
nsresult rv = ssm->CheckLoadURIFromScript(cx, aURI);
NS_ENSURE_SUCCESS(rv, rv);
// Make the load's referrer reflect changes to the document's URI caused by
// push/replaceState, if possible. First, get the document corresponding to
// fp. If the document's original URI (i.e. its URI before
// push/replaceState) matches the principal's URI, use the document's
// current URI as the referrer. If they don't match, use the principal's
// URI.
JSScript* script = nullptr;
nsCOMPtr<nsIDocument> doc;
nsCOMPtr<nsIURI> docOriginalURI, docCurrentURI, principalURI;
// NB: A false return value from JS_DescribeScriptedCaller means no caller
// was found. It does not signal that an exception was thrown.
if (JS_DescribeScriptedCaller(cx, &script, nullptr)) {
doc = GetScriptDocument(cx, script);
}
if (doc) {
docOriginalURI = doc->GetOriginalURI();
docCurrentURI = doc->GetDocumentURI();
rv = doc->NodePrincipal()->GetURI(getter_AddRefs(principalURI));
NS_ENSURE_SUCCESS(rv, rv);
}
bool urisEqual = false;
if (docOriginalURI && docCurrentURI && principalURI) {
principalURI->Equals(docOriginalURI, &urisEqual);
}
if (urisEqual) {
sourceURI = docCurrentURI;
}
else {
sourceURI = principalURI;
}
owner = do_QueryInterface(ssm->GetCxSubjectPrincipal(cx));
}
// Create load info
nsCOMPtr<nsIDocShellLoadInfo> loadInfo;
docShell->CreateLoadInfo(getter_AddRefs(loadInfo));
NS_ENSURE_TRUE(loadInfo, NS_ERROR_FAILURE);
loadInfo->SetOwner(owner);
if (sourceURI) {
loadInfo->SetReferrer(sourceURI);
}
loadInfo.swap(*aLoadInfo);
return NS_OK;
}
