gecko-dev/caps/nsNullPrincipalURI.cpp
Nicholas Nethercote 8c9e80a613 Bug 1297300 - Add missing checks to GetSpec() calls in caps/ and js/. r=mrbkap.
This required making GetScriptLocation() fallible.

--HG--
extra : rebase_source : a678e86c443988897d88550bec1cd1d21c3e919e
2016-08-30 14:22:04 +10:00

361 lines
8.0 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=2 sts=2 expandtab
* 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 "nsNullPrincipalURI.h"
#include "mozilla/DebugOnly.h"
#include "mozilla/MemoryReporting.h"
#include "mozilla/ipc/URIParams.h"
#include "nsEscape.h"
#include "nsCRT.h"
#include "nsIUUIDGenerator.h"
////////////////////////////////////////////////////////////////////////////////
//// nsNullPrincipalURI
nsNullPrincipalURI::nsNullPrincipalURI()
: mPath(mPathBytes, ArrayLength(mPathBytes), ArrayLength(mPathBytes) - 1)
{
}
nsNullPrincipalURI::nsNullPrincipalURI(const nsNullPrincipalURI& aOther)
: mPath(mPathBytes, ArrayLength(mPathBytes), ArrayLength(mPathBytes) - 1)
{
mPath.Assign(aOther.mPath);
}
nsresult
nsNullPrincipalURI::Init()
{
// FIXME: bug 327161 -- make sure the uuid generator is reseeding-resistant.
nsCOMPtr<nsIUUIDGenerator> uuidgen = services::GetUUIDGenerator();
NS_ENSURE_TRUE(uuidgen, NS_ERROR_NOT_AVAILABLE);
nsID id;
nsresult rv = uuidgen->GenerateUUIDInPlace(&id);
NS_ENSURE_SUCCESS(rv, rv);
MOZ_ASSERT(mPathBytes == mPath.BeginWriting());
id.ToProvidedString(mPathBytes);
MOZ_ASSERT(mPath.Length() == NSID_LENGTH - 1);
MOZ_ASSERT(strlen(mPath.get()) == NSID_LENGTH - 1);
return NS_OK;
}
/* static */
already_AddRefed<nsNullPrincipalURI>
nsNullPrincipalURI::Create()
{
RefPtr<nsNullPrincipalURI> uri = new nsNullPrincipalURI();
nsresult rv = uri->Init();
NS_ENSURE_SUCCESS(rv, nullptr);
return uri.forget();
}
static NS_DEFINE_CID(kNullPrincipalURIImplementationCID,
NS_NULLPRINCIPALURI_IMPLEMENTATION_CID);
NS_IMPL_ADDREF(nsNullPrincipalURI)
NS_IMPL_RELEASE(nsNullPrincipalURI)
NS_INTERFACE_MAP_BEGIN(nsNullPrincipalURI)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIURI)
if (aIID.Equals(kNullPrincipalURIImplementationCID))
foundInterface = static_cast<nsIURI *>(this);
else
NS_INTERFACE_MAP_ENTRY(nsIURI)
NS_INTERFACE_MAP_ENTRY(nsISizeOf)
NS_INTERFACE_MAP_ENTRY(nsIIPCSerializableURI)
NS_INTERFACE_MAP_END
////////////////////////////////////////////////////////////////////////////////
//// nsIURI
NS_IMETHODIMP
nsNullPrincipalURI::GetAsciiHost(nsACString &_host)
{
_host.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetAsciiHostPort(nsACString &_hostport)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetAsciiSpec(nsACString &_spec)
{
nsAutoCString buffer;
// Ignore the return value -- nsNullPrincipalURI::GetSpec() is infallible.
Unused << GetSpec(buffer);
NS_EscapeURL(buffer, esc_OnlyNonASCII | esc_AlwaysCopy, _spec);
return NS_OK;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetHost(nsACString &_host)
{
_host.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsNullPrincipalURI::SetHost(const nsACString &aHost)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetHostPort(nsACString &_host)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::SetHostPort(const nsACString &aHost)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::SetHostAndPort(const nsACString &aHost)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetOriginCharset(nsACString &_charset)
{
_charset.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetPassword(nsACString &_password)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::SetPassword(const nsACString &aPassword)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetPath(nsACString &_path)
{
_path = mPath;
return NS_OK;
}
NS_IMETHODIMP
nsNullPrincipalURI::SetPath(const nsACString &aPath)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetRef(nsACString &_ref)
{
_ref.Truncate();
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::SetRef(const nsACString &aRef)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetPrePath(nsACString &_prePath)
{
_prePath = NS_LITERAL_CSTRING(NS_NULLPRINCIPAL_SCHEME ":");
return NS_OK;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetPort(int32_t *_port)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::SetPort(int32_t aPort)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetScheme(nsACString &_scheme)
{
_scheme = NS_LITERAL_CSTRING(NS_NULLPRINCIPAL_SCHEME);
return NS_OK;
}
NS_IMETHODIMP
nsNullPrincipalURI::SetScheme(const nsACString &aScheme)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetSpec(nsACString &_spec)
{
_spec = NS_LITERAL_CSTRING(NS_NULLPRINCIPAL_SCHEME ":") + mPath;
return NS_OK;
}
// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
nsNullPrincipalURI::GetSpecIgnoringRef(nsACString &result)
{
return GetSpec(result);
}
NS_IMETHODIMP
nsNullPrincipalURI::GetHasRef(bool *result)
{
*result = false;
return NS_OK;
}
NS_IMETHODIMP
nsNullPrincipalURI::SetSpec(const nsACString &aSpec)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetUsername(nsACString &_username)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::SetUsername(const nsACString &aUsername)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::GetUserPass(nsACString &_userPass)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::SetUserPass(const nsACString &aUserPass)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsNullPrincipalURI::Clone(nsIURI **_newURI)
{
nsCOMPtr<nsIURI> uri = new nsNullPrincipalURI(*this);
uri.forget(_newURI);
return NS_OK;
}
NS_IMETHODIMP
nsNullPrincipalURI::CloneIgnoringRef(nsIURI **_newURI)
{
// GetRef/SetRef not supported by nsNullPrincipalURI, so
// CloneIgnoringRef() is the same as Clone().
return Clone(_newURI);
}
NS_IMETHODIMP
nsNullPrincipalURI::CloneWithNewRef(const nsACString& newRef, nsIURI **_newURI)
{
// GetRef/SetRef not supported by nsNullPrincipalURI, so
// CloneWithNewRef() is the same as Clone().
return Clone(_newURI);
}
NS_IMETHODIMP
nsNullPrincipalURI::Equals(nsIURI *aOther, bool *_equals)
{
*_equals = false;
RefPtr<nsNullPrincipalURI> otherURI;
nsresult rv = aOther->QueryInterface(kNullPrincipalURIImplementationCID,
getter_AddRefs(otherURI));
if (NS_SUCCEEDED(rv)) {
*_equals = mPath == otherURI->mPath;
}
return NS_OK;
}
NS_IMETHODIMP
nsNullPrincipalURI::EqualsExceptRef(nsIURI *aOther, bool *_equals)
{
// GetRef/SetRef not supported by nsNullPrincipalURI, so
// EqualsExceptRef() is the same as Equals().
return Equals(aOther, _equals);
}
NS_IMETHODIMP
nsNullPrincipalURI::Resolve(const nsACString &aRelativePath,
nsACString &_resolvedURI)
{
_resolvedURI = aRelativePath;
return NS_OK;
}
NS_IMETHODIMP
nsNullPrincipalURI::SchemeIs(const char *aScheme, bool *_schemeIs)
{
*_schemeIs = (0 == nsCRT::strcasecmp(NS_NULLPRINCIPAL_SCHEME, aScheme));
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
//// nsIIPCSerializableURI
void
nsNullPrincipalURI::Serialize(mozilla::ipc::URIParams &aParams)
{
aParams = mozilla::ipc::NullPrincipalURIParams();
}
bool
nsNullPrincipalURI::Deserialize(const mozilla::ipc::URIParams &aParams)
{
if (aParams.type() != mozilla::ipc::URIParams::TNullPrincipalURIParams) {
MOZ_ASSERT_UNREACHABLE("unexpected URIParams type");
return false;
}
nsresult rv = Init();
NS_ENSURE_SUCCESS(rv, false);
return true;
}
////////////////////////////////////////////////////////////////////////////////
//// nsISizeOf
size_t
nsNullPrincipalURI::SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
{
return mPath.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
}
size_t
nsNullPrincipalURI::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const {
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
}