diff -r 000000000000 -r 6474c204b198 caps/src/nsNullPrincipalURI.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/caps/src/nsNullPrincipalURI.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,288 @@
+/* -*- 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/MemoryReporting.h"
+
+#include "nsNetUtil.h"
+#include "nsEscape.h"
+#include "nsCRT.h"
+
+////////////////////////////////////////////////////////////////////////////////
+//// nsNullPrincipalURI
+
+nsNullPrincipalURI::nsNullPrincipalURI(const nsCString &aSpec)
+{
+  int32_t dividerPosition = aSpec.FindChar(':');
+  NS_ASSERTION(dividerPosition != -1, "Malformed URI!");
+
+  int32_t n = aSpec.Left(mScheme, dividerPosition);
+  NS_ASSERTION(n == dividerPosition, "Storing the scheme failed!");
+
+  int32_t count = aSpec.Length() - dividerPosition - 1;
+  n = aSpec.Mid(mPath, dividerPosition + 1, count);
+  NS_ASSERTION(n == count, "Storing the path failed!");
+
+  ToLowerCase(mScheme);
+}
+
+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_END
+
+////////////////////////////////////////////////////////////////////////////////
+//// nsIURI
+
+NS_IMETHODIMP
+nsNullPrincipalURI::GetAsciiHost(nsACString &_host)
+{
+  _host.Truncate();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNullPrincipalURI::GetAsciiSpec(nsACString &_spec)
+{
+  nsAutoCString buffer;
+  (void)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::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 = mScheme + NS_LITERAL_CSTRING(":");
+  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 = mScheme;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNullPrincipalURI::SetScheme(const nsACString &aScheme)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsNullPrincipalURI::GetSpec(nsACString &_spec)
+{
+  _spec = mScheme + NS_LITERAL_CSTRING(":") + 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(mScheme + NS_LITERAL_CSTRING(":") + mPath);
+  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::Equals(nsIURI *aOther, bool *_equals)
+{
+  *_equals = false;
+  nsNullPrincipalURI *otherURI;
+  nsresult rv = aOther->QueryInterface(kNullPrincipalURIImplementationCID,
+                                       (void **)&otherURI);
+  if (NS_SUCCEEDED(rv)) {
+    *_equals = (mScheme == otherURI->mScheme && mPath == otherURI->mPath);
+    NS_RELEASE(otherURI);
+  }
+  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(mScheme.get(), aScheme));
+  return NS_OK;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//// nsISizeOf
+
+size_t
+nsNullPrincipalURI::SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
+{
+  return mScheme.SizeOfExcludingThisIfUnshared(aMallocSizeOf) +
+         mPath.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
+}
+
+size_t
+nsNullPrincipalURI::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const {
+  return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
+}
+