DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Header

Mercurial (e67641c2e4cc)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347
/* -*- 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 "NullPrincipalURI.h"

#include "mozilla/DebugOnly.h"
#include "mozilla/MemoryReporting.h"

#include "mozilla/ipc/URIParams.h"

#include "nsEscape.h"
#include "nsCRT.h"
#include "nsIUUIDGenerator.h"

////////////////////////////////////////////////////////////////////////////////
//// NullPrincipalURI

NullPrincipalURI::NullPrincipalURI() {}

NullPrincipalURI::NullPrincipalURI(const NullPrincipalURI& aOther) {
  mPath.Assign(aOther.mPath);
}

nsresult NullPrincipalURI::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);

  mPath.SetLength(NSID_LENGTH - 1);  // -1 because NSID_LENGTH counts the '\0'
  id.ToProvidedString(
      *reinterpret_cast<char(*)[NSID_LENGTH]>(mPath.BeginWriting()));

  MOZ_ASSERT(mPath.Length() == NSID_LENGTH - 1);
  MOZ_ASSERT(strlen(mPath.get()) == NSID_LENGTH - 1);

  return NS_OK;
}

/* static */
already_AddRefed<NullPrincipalURI> NullPrincipalURI::Create() {
  RefPtr<NullPrincipalURI> uri = new NullPrincipalURI();
  nsresult rv = uri->Init();
  NS_ENSURE_SUCCESS(rv, nullptr);
  return uri.forget();
}

static NS_DEFINE_CID(kNullPrincipalURIImplementationCID,
                     NS_NULLPRINCIPALURI_IMPLEMENTATION_CID);

NS_IMPL_ADDREF(NullPrincipalURI)
NS_IMPL_RELEASE(NullPrincipalURI)

NS_INTERFACE_MAP_BEGIN(NullPrincipalURI)
  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
NullPrincipalURI::GetAsciiHost(nsACString& _host) {
  _host.Truncate();
  return NS_OK;
}

NS_IMETHODIMP
NullPrincipalURI::GetAsciiHostPort(nsACString& _hostport) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
NullPrincipalURI::GetAsciiSpec(nsACString& _spec) {
  nsAutoCString buffer;
  // Ignore the return value -- NullPrincipalURI::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
NullPrincipalURI::GetHost(nsACString& _host) {
  _host.Truncate();
  return NS_OK;
}

nsresult NullPrincipalURI::SetHost(const nsACString& aHost) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
NullPrincipalURI::GetHostPort(nsACString& _host) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

nsresult NullPrincipalURI::SetHostPort(const nsACString& aHost) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
NullPrincipalURI::GetPassword(nsACString& _password) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

nsresult NullPrincipalURI::SetPassword(const nsACString& aPassword) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
NullPrincipalURI::GetPathQueryRef(nsACString& _path) {
  _path = mPath;
  return NS_OK;
}

nsresult NullPrincipalURI::SetPathQueryRef(const nsACString& aPath) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
NullPrincipalURI::GetFilePath(nsACString& aFilePath) {
  aFilePath.Truncate();
  return NS_ERROR_NOT_IMPLEMENTED;
}

nsresult NullPrincipalURI::SetFilePath(const nsACString& aFilePath) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
NullPrincipalURI::GetQuery(nsACString& aQuery) {
  aQuery.Truncate();
  return NS_ERROR_NOT_IMPLEMENTED;
}

nsresult NullPrincipalURI::SetQuery(const nsACString& aQuery) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

nsresult NullPrincipalURI::SetQueryWithEncoding(const nsACString& aQuery,
                                                const Encoding* aEncoding) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
NullPrincipalURI::GetRef(nsACString& _ref) {
  _ref.Truncate();
  return NS_ERROR_NOT_IMPLEMENTED;
}

nsresult NullPrincipalURI::SetRef(const nsACString& aRef) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
NullPrincipalURI::GetPrePath(nsACString& _prePath) {
  _prePath = NS_LITERAL_CSTRING(NS_NULLPRINCIPAL_SCHEME ":");
  return NS_OK;
}

NS_IMETHODIMP
NullPrincipalURI::GetPort(int32_t* _port) { return NS_ERROR_NOT_IMPLEMENTED; }

nsresult NullPrincipalURI::SetPort(int32_t aPort) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
NullPrincipalURI::GetScheme(nsACString& _scheme) {
  _scheme = NS_LITERAL_CSTRING(NS_NULLPRINCIPAL_SCHEME);
  return NS_OK;
}

nsresult NullPrincipalURI::SetScheme(const nsACString& aScheme) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
NullPrincipalURI::GetSpec(nsACString& _spec) {
  _spec = NS_LITERAL_CSTRING(NS_NULLPRINCIPAL_SCHEME ":") + mPath;
  return NS_OK;
}

// result may contain unescaped UTF-8 characters
NS_IMETHODIMP
NullPrincipalURI::GetSpecIgnoringRef(nsACString& _result) {
  return GetSpec(_result);
}

NS_IMETHODIMP
NullPrincipalURI::GetHasRef(bool* _result) {
  *_result = false;
  return NS_OK;
}

nsresult NullPrincipalURI::SetSpecInternal(const nsACString& aSpec) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
NullPrincipalURI::GetUsername(nsACString& _username) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

nsresult NullPrincipalURI::SetUsername(const nsACString& aUsername) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
NullPrincipalURI::GetUserPass(nsACString& _userPass) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

nsresult NullPrincipalURI::SetUserPass(const nsACString& aUserPass) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
NullPrincipalURI::Clone(nsIURI** _newURI) {
  nsCOMPtr<nsIURI> uri = new NullPrincipalURI(*this);
  uri.forget(_newURI);
  return NS_OK;
}

NS_IMETHODIMP
NullPrincipalURI::CloneIgnoringRef(nsIURI** _newURI) {
  // GetRef/SetRef not supported by NullPrincipalURI, so
  // CloneIgnoringRef() is the same as Clone().
  return Clone(_newURI);
}

NS_IMETHODIMP
NullPrincipalURI::CloneWithNewRef(const nsACString& newRef, nsIURI** _newURI) {
  // GetRef/SetRef not supported by NullPrincipalURI, so
  // CloneWithNewRef() is the same as Clone().
  return Clone(_newURI);
}

NS_IMPL_ISUPPORTS(NullPrincipalURI::Mutator, nsIURISetters, nsIURIMutator)

NS_IMETHODIMP
NullPrincipalURI::Mutate(nsIURIMutator** aMutator) {
  RefPtr<NullPrincipalURI::Mutator> mutator = new NullPrincipalURI::Mutator();
  nsresult rv = mutator->InitFromURI(this);
  if (NS_FAILED(rv)) {
    return rv;
  }
  mutator.forget(aMutator);
  return NS_OK;
}

NS_IMETHODIMP
NullPrincipalURI::Equals(nsIURI* aOther, bool* _equals) {
  *_equals = false;
  RefPtr<NullPrincipalURI> otherURI;
  nsresult rv = aOther->QueryInterface(kNullPrincipalURIImplementationCID,
                                       getter_AddRefs(otherURI));
  if (NS_SUCCEEDED(rv)) {
    *_equals = mPath == otherURI->mPath;
  }
  return NS_OK;
}

NS_IMETHODIMP
NullPrincipalURI::EqualsExceptRef(nsIURI* aOther, bool* _equals) {
  // GetRef/SetRef not supported by NullPrincipalURI, so
  // EqualsExceptRef() is the same as Equals().
  return Equals(aOther, _equals);
}

NS_IMETHODIMP
NullPrincipalURI::Resolve(const nsACString& aRelativePath,
                          nsACString& _resolvedURI) {
  _resolvedURI = aRelativePath;
  return NS_OK;
}

NS_IMETHODIMP
NullPrincipalURI::SchemeIs(const char* aScheme, bool* _schemeIs) {
  *_schemeIs = (0 == nsCRT::strcasecmp(NS_NULLPRINCIPAL_SCHEME, aScheme));
  return NS_OK;
}

NS_IMETHODIMP
NullPrincipalURI::GetDisplaySpec(nsACString& aUnicodeSpec) {
  return GetSpec(aUnicodeSpec);
}

NS_IMETHODIMP
NullPrincipalURI::GetDisplayHostPort(nsACString& aUnicodeHostPort) {
  return GetHostPort(aUnicodeHostPort);
}

NS_IMETHODIMP
NullPrincipalURI::GetDisplayHost(nsACString& aUnicodeHost) {
  return GetHost(aUnicodeHost);
}

NS_IMETHODIMP
NullPrincipalURI::GetDisplayPrePath(nsACString& aPrePath) {
  return GetPrePath(aPrePath);
}

////////////////////////////////////////////////////////////////////////////////
//// nsIIPCSerializableURI

void NullPrincipalURI::Serialize(mozilla::ipc::URIParams& aParams) {
  aParams = mozilla::ipc::NullPrincipalURIParams();
}

bool NullPrincipalURI::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 NullPrincipalURI::SizeOfExcludingThis(
    mozilla::MallocSizeOf aMallocSizeOf) const {
  return mPath.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
}

size_t NullPrincipalURI::SizeOfIncludingThis(
    mozilla::MallocSizeOf aMallocSizeOf) const {
  return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
}