本文整理汇总了C++中PrincipalInfo::get_NullPrincipalInfo方法的典型用法代码示例。如果您正苦于以下问题：C++ PrincipalInfo::get_NullPrincipalInfo方法的具体用法？C++ PrincipalInfo::get_NullPrincipalInfo怎么用？C++ PrincipalInfo::get_NullPrincipalInfo使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PrincipalInfo的用法示例。
在下文中一共展示了PrincipalInfo::get_NullPrincipalInfo方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: switch
already_AddRefed<nsIPrincipal>
PrincipalInfoToPrincipal(const PrincipalInfo& aPrincipalInfo,
nsresult* aOptionalResult)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aPrincipalInfo.type() != PrincipalInfo::T__None);
nsresult stackResult;
nsresult& rv = aOptionalResult ? *aOptionalResult : stackResult;
nsCOMPtr<nsIScriptSecurityManager> secMan =
do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
nsCOMPtr<nsIPrincipal> principal;
switch (aPrincipalInfo.type()) {
case PrincipalInfo::TSystemPrincipalInfo: {
rv = secMan->GetSystemPrincipal(getter_AddRefs(principal));
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
return principal.forget();
}
case PrincipalInfo::TNullPrincipalInfo: {
const NullPrincipalInfo& info =
aPrincipalInfo.get_NullPrincipalInfo();
principal = nsNullPrincipal::Create(info.attrs());
return principal.forget();
}
case PrincipalInfo::TContentPrincipalInfo: {
const ContentPrincipalInfo& info =
aPrincipalInfo.get_ContentPrincipalInfo();
nsCOMPtr<nsIURI> uri;
rv = NS_NewURI(getter_AddRefs(uri), info.spec());
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
PrincipalOriginAttributes attrs;
if (info.attrs().mAppId != nsIScriptSecurityManager::UNKNOWN_APP_ID) {
attrs = info.attrs();
}
principal = BasePrincipal::CreateCodebasePrincipal(uri, attrs);
rv = principal ? NS_OK : NS_ERROR_FAILURE;
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
return principal.forget();
}
case PrincipalInfo::TExpandedPrincipalInfo: {
const ExpandedPrincipalInfo& info = aPrincipalInfo.get_ExpandedPrincipalInfo();
nsTArray<nsCOMPtr<nsIPrincipal>> whitelist;
nsCOMPtr<nsIPrincipal> wlPrincipal;
for (uint32_t i = 0; i < info.whitelist().Length(); i++) {
wlPrincipal = PrincipalInfoToPrincipal(info.whitelist()[i], &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
// append that principal to the whitelist
whitelist.AppendElement(wlPrincipal);
}
RefPtr<nsExpandedPrincipal> expandedPrincipal = new nsExpandedPrincipal(whitelist, info.attrs());
if (!expandedPrincipal) {
NS_WARNING("could not instantiate expanded principal");
return nullptr;
}
principal = expandedPrincipal;
return principal.forget();
}
default:
MOZ_CRASH("Unknown PrincipalInfo type!");
}
MOZ_CRASH("Should never get here!");
}