NS_IMETHODIMP
nsAboutRedirector::NewChannel(nsIURI* aURI,
nsILoadInfo* aLoadInfo,
nsIChannel** aResult)
{
NS_ENSURE_ARG_POINTER(aURI);
NS_ASSERTION(aResult, "must not be null");
nsAutoCString path;
nsresult rv = NS_GetAboutModuleName(aURI, path);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIIOService> ioService = do_GetIOService(&rv);
NS_ENSURE_SUCCESS(rv, rv);
for (int i = 0; i < kRedirTotal; i++) {
if (!strcmp(path.get(), kRedirMap[i].id)) {
nsCOMPtr<nsIChannel> tempChannel;
nsCOMPtr<nsIURI> tempURI;
rv = NS_NewURI(getter_AddRefs(tempURI), kRedirMap[i].url);
NS_ENSURE_SUCCESS(rv, rv);
// If tempURI links to an external URI (i.e. something other than
// chrome:// or resource://) then set the LOAD_REPLACE flag on the
// channel which forces the channel owner to reflect the displayed
// URL rather then being the systemPrincipal.
bool isUIResource = false;
rv = NS_URIChainHasFlags(tempURI, nsIProtocolHandler::URI_IS_UI_RESOURCE,
&isUIResource);
NS_ENSURE_SUCCESS(rv, rv);
bool isAboutBlank = NS_IsAboutBlank(tempURI);
nsLoadFlags loadFlags = isUIResource || isAboutBlank
? static_cast<nsLoadFlags>(nsIChannel::LOAD_NORMAL)
: static_cast<nsLoadFlags>(nsIChannel::LOAD_REPLACE);
rv = NS_NewChannelInternal(getter_AddRefs(tempChannel),
tempURI,
aLoadInfo,
nullptr, // aLoadGroup
nullptr, // aCallbacks
loadFlags);
NS_ENSURE_SUCCESS(rv, rv);
tempChannel->SetOriginalURI(aURI);
tempChannel.forget(aResult);
return rv;
}
}
NS_ERROR("nsAboutRedirector called for unknown case");
return NS_ERROR_ILLEGAL_VALUE;
}
static nsresult
DoSOPChecks(nsIURI* aURI, nsILoadInfo* aLoadInfo)
{
if (aLoadInfo->GetAllowChrome() &&
(URIHasFlags(aURI, nsIProtocolHandler::URI_IS_UI_RESOURCE) ||
SchemeIs(aURI, "moz-safe-about"))) {
// UI resources are allowed.
return DoCheckLoadURIChecks(aURI, aLoadInfo);
}
nsIPrincipal* loadingPrincipal = aLoadInfo->LoadingPrincipal();
bool sameOriginDataInherits =
aLoadInfo->GetSecurityMode() == nsILoadInfo::SEC_REQUIRE_SAME_ORIGIN_DATA_INHERITS;
if (sameOriginDataInherits &&
aLoadInfo->GetAboutBlankInherits() &&
NS_IsAboutBlank(aURI)) {
return NS_OK;
}
return loadingPrincipal->CheckMayLoad(aURI,
true, // report to console
sameOriginDataInherits);
}
NS_IMETHODIMP
nsAboutRedirector::NewChannel(nsIURI* aURI, nsILoadInfo* aLoadInfo,
nsIChannel** aResult) {
NS_ENSURE_ARG_POINTER(aURI);
NS_ENSURE_ARG_POINTER(aLoadInfo);
NS_ASSERTION(aResult, "must not be null");
nsAutoCString path;
nsresult rv = NS_GetAboutModuleName(aURI, path);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIIOService> ioService = do_GetIOService(&rv);
NS_ENSURE_SUCCESS(rv, rv);
if (path.EqualsASCII("crashparent") || path.EqualsASCII("crashcontent")) {
nsCOMPtr<nsIChannel> channel = new CrashChannel(aURI);
channel.forget(aResult);
return NS_OK;
}
#ifdef ABOUT_CONFIG_BLOCKED_GV
// We don't want to allow access to about:config from
// GeckoView on release or beta, but it's fine for Fennec.
if (path.EqualsASCII("config") && !mozilla::jni::IsFennec()) {
return NS_ERROR_NOT_AVAILABLE;
}
#endif
for (int i = 0; i < kRedirTotal; i++) {
if (!strcmp(path.get(), kRedirMap[i].id)) {
nsCOMPtr<nsIChannel> tempChannel;
nsCOMPtr<nsIURI> tempURI;
rv = NS_NewURI(getter_AddRefs(tempURI), kRedirMap[i].url);
NS_ENSURE_SUCCESS(rv, rv);
rv = NS_NewChannelInternal(getter_AddRefs(tempChannel), tempURI,
aLoadInfo);
NS_ENSURE_SUCCESS(rv, rv);
// If tempURI links to an external URI (i.e. something other than
// chrome:// or resource://) then set result principal URI on the
// load info which forces the channel principal to reflect the displayed
// URL rather then being the systemPrincipal.
bool isUIResource = false;
rv = NS_URIChainHasFlags(tempURI, nsIProtocolHandler::URI_IS_UI_RESOURCE,
&isUIResource);
NS_ENSURE_SUCCESS(rv, rv);
bool isAboutBlank = NS_IsAboutBlank(tempURI);
if (!isUIResource && !isAboutBlank) {
aLoadInfo->SetResultPrincipalURI(tempURI);
}
tempChannel->SetOriginalURI(aURI);
tempChannel.forget(aResult);
return rv;
}
}
NS_ERROR("nsAboutRedirector called for unknown case");
return NS_ERROR_ILLEGAL_VALUE;
}
