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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "URIUtils.h"
#include "nsIIPCSerializableURI.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/Assertions.h"
#include "nsComponentManagerUtils.h"
#include "nsDebug.h"
#include "nsID.h"
#include "nsJARURI.h"
#include "nsNetCID.h"
#include "nsNetUtil.h"
#include "nsThreadUtils.h"
using namespace mozilla::ipc;
using mozilla::ArrayLength;
namespace {
NS_DEFINE_CID(kSimpleURICID, NS_SIMPLEURI_CID);
NS_DEFINE_CID(kStandardURLCID, NS_STANDARDURL_CID);
NS_DEFINE_CID(kJARURICID, NS_JARURI_CID);
struct StringWithLengh
{
const char* string;
size_t length;
};
#define STRING_WITH_LENGTH(_str) \
{ _str, ArrayLength(_str) - 1 }
const StringWithLengh kGenericURIAllowedSchemes[] = {
STRING_WITH_LENGTH("about:"),
STRING_WITH_LENGTH("javascript:"),
STRING_WITH_LENGTH("javascript")
};
#undef STRING_WITH_LENGTH
} // anonymous namespace
namespace mozilla {
namespace ipc {
void
SerializeURI(nsIURI* aURI,
URIParams& aParams)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aURI);
nsCOMPtr<nsIIPCSerializableURI> serializable = do_QueryInterface(aURI);
if (serializable) {
serializable->Serialize(aParams);
if (aParams.type() == URIParams::T__None) {
MOZ_CRASH("Serialize failed!");
}
return;
}
nsCString scheme;
if (NS_FAILED(aURI->GetScheme(scheme))) {
MOZ_CRASH("This must never fail!");
}
bool allowed = false;
for (size_t i = 0; i < ArrayLength(kGenericURIAllowedSchemes); i++) {
const StringWithLengh& entry = kGenericURIAllowedSchemes[i];
if (scheme.EqualsASCII(entry.string, entry.length)) {
allowed = true;
break;
}
}
if (!allowed) {
MOZ_CRASH("All IPDL URIs must be serializable or an allowed "
"scheme!");
}
GenericURIParams params;
if (NS_FAILED(aURI->GetSpec(params.spec())) ||
NS_FAILED(aURI->GetOriginCharset(params.charset()))) {
MOZ_CRASH("This must never fail!");
}
aParams = params;
}
void
SerializeURI(nsIURI* aURI,
OptionalURIParams& aParams)
{
MOZ_ASSERT(NS_IsMainThread());
if (aURI) {
URIParams params;
SerializeURI(aURI, params);
aParams = params;
}
else {
aParams = mozilla::void_t();
}
}
already_AddRefed<nsIURI>
DeserializeURI(const URIParams& aParams)
{
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIURI> uri;
if (aParams.type() != URIParams::TGenericURIParams) {
nsCOMPtr<nsIIPCSerializableURI> serializable;
switch (aParams.type()) {
case URIParams::TSimpleURIParams:
serializable = do_CreateInstance(kSimpleURICID);
break;
case URIParams::TStandardURLParams:
serializable = do_CreateInstance(kStandardURLCID);
break;
case URIParams::TJARURIParams:
serializable = do_CreateInstance(kJARURICID);
break;
default:
MOZ_CRASH("Unknown params!");
}
MOZ_ASSERT(serializable);
if (!serializable->Deserialize(aParams)) {
MOZ_ASSERT(false, "Deserialize failed!");
return nullptr;
}
uri = do_QueryInterface(serializable);
MOZ_ASSERT(uri);
return uri.forget();
}
MOZ_ASSERT(aParams.type() == URIParams::TGenericURIParams);
const GenericURIParams& params = aParams.get_GenericURIParams();
if (NS_FAILED(NS_NewURI(getter_AddRefs(uri), params.spec(),
params.charset().get()))) {
NS_WARNING("Failed to make new URI!");
return nullptr;
}
nsCString scheme;
if (NS_FAILED(uri->GetScheme(scheme))) {
MOZ_CRASH("This must never fail!");
}
bool allowed = false;
for (size_t i = 0; i < ArrayLength(kGenericURIAllowedSchemes); i++) {
const StringWithLengh& entry = kGenericURIAllowedSchemes[i];
if (scheme.EqualsASCII(entry.string, entry.length)) {
allowed = true;
break;
}
}
if (!allowed) {
MOZ_ASSERT(false, "This type of URI is not allowed!");
return nullptr;
}
return uri.forget();
}
already_AddRefed<nsIURI>
DeserializeURI(const OptionalURIParams& aParams)
{
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIURI> uri;
switch (aParams.type()) {
case OptionalURIParams::Tvoid_t:
break;
case OptionalURIParams::TURIParams:
uri = DeserializeURI(aParams.get_URIParams());
break;
default:
MOZ_CRASH("Unknown params!");
}
return uri.forget();
}
} // namespace ipc
} // namespace mozilla
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