import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

caps/nsNullPrincipalURI.cpp

@@ -0,0 +1,362 @@
+/* -*- 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);
+  // This uses the infallible version of |NS_EscapeURL| as |GetSpec| is
+  // already infallible.
+  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);
+}
+