1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/chrome/src/nsChromeRegistry.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,631 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=2 sw=2 et tw=78: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "nsChromeRegistry.h"
1.11 +#include "nsChromeRegistryChrome.h"
1.12 +#include "nsChromeRegistryContent.h"
1.13 +
1.14 +#include "prprf.h"
1.15 +
1.16 +#include "nsCOMPtr.h"
1.17 +#include "nsError.h"
1.18 +#include "nsEscape.h"
1.19 +#include "nsNetUtil.h"
1.20 +#include "nsString.h"
1.21 +
1.22 +#include "nsCSSStyleSheet.h"
1.23 +#include "nsIConsoleService.h"
1.24 +#include "nsIDocument.h"
1.25 +#include "nsIDOMDocument.h"
1.26 +#include "nsIDOMLocation.h"
1.27 +#include "nsIDOMWindowCollection.h"
1.28 +#include "nsIDOMWindow.h"
1.29 +#include "nsIObserverService.h"
1.30 +#include "nsIPresShell.h"
1.31 +#include "nsIScriptError.h"
1.32 +#include "nsIWindowMediator.h"
1.33 +#include "mozilla/dom/URL.h"
1.34 +
1.35 +nsChromeRegistry* nsChromeRegistry::gChromeRegistry;
1.36 +using mozilla::dom::IsChromeURI;
1.37 +
1.38 +////////////////////////////////////////////////////////////////////////////////
1.39 +
1.40 +void
1.41 +nsChromeRegistry::LogMessage(const char* aMsg, ...)
1.42 +{
1.43 + nsCOMPtr<nsIConsoleService> console
1.44 + (do_GetService(NS_CONSOLESERVICE_CONTRACTID));
1.45 + if (!console)
1.46 + return;
1.47 +
1.48 + va_list args;
1.49 + va_start(args, aMsg);
1.50 + char* formatted = PR_vsmprintf(aMsg, args);
1.51 + va_end(args);
1.52 + if (!formatted)
1.53 + return;
1.54 +
1.55 + console->LogStringMessage(NS_ConvertUTF8toUTF16(formatted).get());
1.56 + PR_smprintf_free(formatted);
1.57 +}
1.58 +
1.59 +void
1.60 +nsChromeRegistry::LogMessageWithContext(nsIURI* aURL, uint32_t aLineNumber, uint32_t flags,
1.61 + const char* aMsg, ...)
1.62 +{
1.63 + nsresult rv;
1.64 +
1.65 + nsCOMPtr<nsIConsoleService> console
1.66 + (do_GetService(NS_CONSOLESERVICE_CONTRACTID));
1.67 +
1.68 + nsCOMPtr<nsIScriptError> error
1.69 + (do_CreateInstance(NS_SCRIPTERROR_CONTRACTID));
1.70 + if (!console || !error)
1.71 + return;
1.72 +
1.73 + va_list args;
1.74 + va_start(args, aMsg);
1.75 + char* formatted = PR_vsmprintf(aMsg, args);
1.76 + va_end(args);
1.77 + if (!formatted)
1.78 + return;
1.79 +
1.80 + nsCString spec;
1.81 + if (aURL)
1.82 + aURL->GetSpec(spec);
1.83 +
1.84 + rv = error->Init(NS_ConvertUTF8toUTF16(formatted),
1.85 + NS_ConvertUTF8toUTF16(spec),
1.86 + EmptyString(),
1.87 + aLineNumber, 0, flags, "chrome registration");
1.88 + PR_smprintf_free(formatted);
1.89 +
1.90 + if (NS_FAILED(rv))
1.91 + return;
1.92 +
1.93 + console->LogMessage(error);
1.94 +}
1.95 +
1.96 +nsChromeRegistry::~nsChromeRegistry()
1.97 +{
1.98 + gChromeRegistry = nullptr;
1.99 +}
1.100 +
1.101 +NS_INTERFACE_MAP_BEGIN(nsChromeRegistry)
1.102 + NS_INTERFACE_MAP_ENTRY(nsIChromeRegistry)
1.103 + NS_INTERFACE_MAP_ENTRY(nsIXULChromeRegistry)
1.104 + NS_INTERFACE_MAP_ENTRY(nsIToolkitChromeRegistry)
1.105 +#ifdef MOZ_XUL
1.106 + NS_INTERFACE_MAP_ENTRY(nsIXULOverlayProvider)
1.107 +#endif
1.108 + NS_INTERFACE_MAP_ENTRY(nsIObserver)
1.109 + NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
1.110 + NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIChromeRegistry)
1.111 +NS_INTERFACE_MAP_END
1.112 +
1.113 +NS_IMPL_ADDREF(nsChromeRegistry)
1.114 +NS_IMPL_RELEASE(nsChromeRegistry)
1.115 +
1.116 +////////////////////////////////////////////////////////////////////////////////
1.117 +// nsIChromeRegistry methods:
1.118 +
1.119 +already_AddRefed<nsIChromeRegistry>
1.120 +nsChromeRegistry::GetService()
1.121 +{
1.122 + if (!gChromeRegistry)
1.123 + {
1.124 + // We don't actually want this ref, we just want the service to
1.125 + // initialize if it hasn't already.
1.126 + nsCOMPtr<nsIChromeRegistry> reg(
1.127 + do_GetService(NS_CHROMEREGISTRY_CONTRACTID));
1.128 + if (!gChromeRegistry)
1.129 + return nullptr;
1.130 + }
1.131 + nsCOMPtr<nsIChromeRegistry> registry = gChromeRegistry;
1.132 + return registry.forget();
1.133 +}
1.134 +
1.135 +nsresult
1.136 +nsChromeRegistry::Init()
1.137 +{
1.138 + // This initialization process is fairly complicated and may cause reentrant
1.139 + // getservice calls to resolve chrome URIs (especially locale files). We
1.140 + // don't want that, so we inform the protocol handler about our existence
1.141 + // before we are actually fully initialized.
1.142 + gChromeRegistry = this;
1.143 +
1.144 + mInitialized = true;
1.145 +
1.146 + return NS_OK;
1.147 +}
1.148 +
1.149 +nsresult
1.150 +nsChromeRegistry::GetProviderAndPath(nsIURL* aChromeURL,
1.151 + nsACString& aProvider, nsACString& aPath)
1.152 +{
1.153 + nsresult rv;
1.154 +
1.155 +#ifdef DEBUG
1.156 + bool isChrome;
1.157 + aChromeURL->SchemeIs("chrome", &isChrome);
1.158 + NS_ASSERTION(isChrome, "Non-chrome URI?");
1.159 +#endif
1.160 +
1.161 + nsAutoCString path;
1.162 + rv = aChromeURL->GetPath(path);
1.163 + NS_ENSURE_SUCCESS(rv, rv);
1.164 +
1.165 + if (path.Length() < 3) {
1.166 + LogMessage("Invalid chrome URI: %s", path.get());
1.167 + return NS_ERROR_FAILURE;
1.168 + }
1.169 +
1.170 + path.SetLength(nsUnescapeCount(path.BeginWriting()));
1.171 + NS_ASSERTION(path.First() == '/', "Path should always begin with a slash!");
1.172 +
1.173 + int32_t slash = path.FindChar('/', 1);
1.174 + if (slash == 1) {
1.175 + LogMessage("Invalid chrome URI: %s", path.get());
1.176 + return NS_ERROR_FAILURE;
1.177 + }
1.178 +
1.179 + if (slash == -1) {
1.180 + aPath.Truncate();
1.181 + }
1.182 + else {
1.183 + if (slash == (int32_t) path.Length() - 1)
1.184 + aPath.Truncate();
1.185 + else
1.186 + aPath.Assign(path.get() + slash + 1, path.Length() - slash - 1);
1.187 +
1.188 + --slash;
1.189 + }
1.190 +
1.191 + aProvider.Assign(path.get() + 1, slash);
1.192 + return NS_OK;
1.193 +}
1.194 +
1.195 +
1.196 +nsresult
1.197 +nsChromeRegistry::Canonify(nsIURL* aChromeURL)
1.198 +{
1.199 + NS_NAMED_LITERAL_CSTRING(kSlash, "/");
1.200 +
1.201 + nsresult rv;
1.202 +
1.203 + nsAutoCString provider, path;
1.204 + rv = GetProviderAndPath(aChromeURL, provider, path);
1.205 + NS_ENSURE_SUCCESS(rv, rv);
1.206 +
1.207 + if (path.IsEmpty()) {
1.208 + nsAutoCString package;
1.209 + rv = aChromeURL->GetHost(package);
1.210 + NS_ENSURE_SUCCESS(rv, rv);
1.211 +
1.212 + // we re-use the "path" local string to build a new URL path
1.213 + path.Assign(kSlash + provider + kSlash + package);
1.214 + if (provider.EqualsLiteral("content")) {
1.215 + path.AppendLiteral(".xul");
1.216 + }
1.217 + else if (provider.EqualsLiteral("locale")) {
1.218 + path.AppendLiteral(".dtd");
1.219 + }
1.220 + else if (provider.EqualsLiteral("skin")) {
1.221 + path.AppendLiteral(".css");
1.222 + }
1.223 + else {
1.224 + return NS_ERROR_INVALID_ARG;
1.225 + }
1.226 + aChromeURL->SetPath(path);
1.227 + }
1.228 + else {
1.229 + // prevent directory traversals ("..")
1.230 + // path is already unescaped once, but uris can get unescaped twice
1.231 + const char* pos = path.BeginReading();
1.232 + const char* end = path.EndReading();
1.233 + while (pos < end) {
1.234 + switch (*pos) {
1.235 + case ':':
1.236 + return NS_ERROR_DOM_BAD_URI;
1.237 + case '.':
1.238 + if (pos[1] == '.')
1.239 + return NS_ERROR_DOM_BAD_URI;
1.240 + break;
1.241 + case '%':
1.242 + // chrome: URIs with double-escapes are trying to trick us.
1.243 + // watch for %2e, and %25 in case someone triple unescapes
1.244 + if (pos[1] == '2' &&
1.245 + ( pos[2] == 'e' || pos[2] == 'E' ||
1.246 + pos[2] == '5' ))
1.247 + return NS_ERROR_DOM_BAD_URI;
1.248 + break;
1.249 + case '?':
1.250 + case '#':
1.251 + pos = end;
1.252 + continue;
1.253 + }
1.254 + ++pos;
1.255 + }
1.256 + }
1.257 +
1.258 + return NS_OK;
1.259 +}
1.260 +
1.261 +NS_IMETHODIMP
1.262 +nsChromeRegistry::ConvertChromeURL(nsIURI* aChromeURI, nsIURI* *aResult)
1.263 +{
1.264 + nsresult rv;
1.265 + NS_ASSERTION(aChromeURI, "null url!");
1.266 +
1.267 + if (mOverrideTable.Get(aChromeURI, aResult))
1.268 + return NS_OK;
1.269 +
1.270 + nsCOMPtr<nsIURL> chromeURL (do_QueryInterface(aChromeURI));
1.271 + NS_ENSURE_TRUE(chromeURL, NS_NOINTERFACE);
1.272 +
1.273 + nsAutoCString package, provider, path;
1.274 + rv = chromeURL->GetHostPort(package);
1.275 + NS_ENSURE_SUCCESS(rv, rv);
1.276 +
1.277 + rv = GetProviderAndPath(chromeURL, provider, path);
1.278 + NS_ENSURE_SUCCESS(rv, rv);
1.279 +
1.280 + nsIURI* baseURI = GetBaseURIFromPackage(package, provider, path);
1.281 +
1.282 + uint32_t flags;
1.283 + rv = GetFlagsFromPackage(package, &flags);
1.284 + if (NS_FAILED(rv))
1.285 + return rv;
1.286 +
1.287 + if (flags & PLATFORM_PACKAGE) {
1.288 +#if defined(XP_WIN)
1.289 + path.Insert("win/", 0);
1.290 +#elif defined(XP_MACOSX)
1.291 + path.Insert("mac/", 0);
1.292 +#else
1.293 + path.Insert("unix/", 0);
1.294 +#endif
1.295 + }
1.296 +
1.297 + if (!baseURI) {
1.298 + LogMessage("No chrome package registered for chrome://%s/%s/%s",
1.299 + package.get(), provider.get(), path.get());
1.300 + return NS_ERROR_FAILURE;
1.301 + }
1.302 +
1.303 + return NS_NewURI(aResult, path, nullptr, baseURI);
1.304 +}
1.305 +
1.306 +////////////////////////////////////////////////////////////////////////
1.307 +
1.308 +// theme stuff
1.309 +
1.310 +
1.311 +static void FlushSkinBindingsForWindow(nsIDOMWindow* aWindow)
1.312 +{
1.313 + // Get the DOM document.
1.314 + nsCOMPtr<nsIDOMDocument> domDocument;
1.315 + aWindow->GetDocument(getter_AddRefs(domDocument));
1.316 + if (!domDocument)
1.317 + return;
1.318 +
1.319 + nsCOMPtr<nsIDocument> document = do_QueryInterface(domDocument);
1.320 + if (!document)
1.321 + return;
1.322 +
1.323 + // Annihilate all XBL bindings.
1.324 + document->FlushSkinBindings();
1.325 +}
1.326 +
1.327 +// XXXbsmedberg: move this to nsIWindowMediator
1.328 +NS_IMETHODIMP nsChromeRegistry::RefreshSkins()
1.329 +{
1.330 + nsCOMPtr<nsIWindowMediator> windowMediator
1.331 + (do_GetService(NS_WINDOWMEDIATOR_CONTRACTID));
1.332 + if (!windowMediator)
1.333 + return NS_OK;
1.334 +
1.335 + nsCOMPtr<nsISimpleEnumerator> windowEnumerator;
1.336 + windowMediator->GetEnumerator(nullptr, getter_AddRefs(windowEnumerator));
1.337 + bool more;
1.338 + windowEnumerator->HasMoreElements(&more);
1.339 + while (more) {
1.340 + nsCOMPtr<nsISupports> protoWindow;
1.341 + windowEnumerator->GetNext(getter_AddRefs(protoWindow));
1.342 + if (protoWindow) {
1.343 + nsCOMPtr<nsIDOMWindow> domWindow = do_QueryInterface(protoWindow);
1.344 + if (domWindow)
1.345 + FlushSkinBindingsForWindow(domWindow);
1.346 + }
1.347 + windowEnumerator->HasMoreElements(&more);
1.348 + }
1.349 +
1.350 + FlushSkinCaches();
1.351 +
1.352 + windowMediator->GetEnumerator(nullptr, getter_AddRefs(windowEnumerator));
1.353 + windowEnumerator->HasMoreElements(&more);
1.354 + while (more) {
1.355 + nsCOMPtr<nsISupports> protoWindow;
1.356 + windowEnumerator->GetNext(getter_AddRefs(protoWindow));
1.357 + if (protoWindow) {
1.358 + nsCOMPtr<nsIDOMWindow> domWindow = do_QueryInterface(protoWindow);
1.359 + if (domWindow)
1.360 + RefreshWindow(domWindow);
1.361 + }
1.362 + windowEnumerator->HasMoreElements(&more);
1.363 + }
1.364 +
1.365 + return NS_OK;
1.366 +}
1.367 +
1.368 +void
1.369 +nsChromeRegistry::FlushSkinCaches()
1.370 +{
1.371 + nsCOMPtr<nsIObserverService> obsSvc =
1.372 + mozilla::services::GetObserverService();
1.373 + NS_ASSERTION(obsSvc, "Couldn't get observer service.");
1.374 +
1.375 + obsSvc->NotifyObservers(static_cast<nsIChromeRegistry*>(this),
1.376 + NS_CHROME_FLUSH_SKINS_TOPIC, nullptr);
1.377 +}
1.378 +
1.379 +// XXXbsmedberg: move this to windowmediator
1.380 +nsresult nsChromeRegistry::RefreshWindow(nsIDOMWindow* aWindow)
1.381 +{
1.382 + // Deal with our subframes first.
1.383 + nsCOMPtr<nsIDOMWindowCollection> frames;
1.384 + aWindow->GetFrames(getter_AddRefs(frames));
1.385 + uint32_t length;
1.386 + frames->GetLength(&length);
1.387 + uint32_t j;
1.388 + for (j = 0; j < length; j++) {
1.389 + nsCOMPtr<nsIDOMWindow> childWin;
1.390 + frames->Item(j, getter_AddRefs(childWin));
1.391 + RefreshWindow(childWin);
1.392 + }
1.393 +
1.394 + nsresult rv;
1.395 + // Get the DOM document.
1.396 + nsCOMPtr<nsIDOMDocument> domDocument;
1.397 + aWindow->GetDocument(getter_AddRefs(domDocument));
1.398 + if (!domDocument)
1.399 + return NS_OK;
1.400 +
1.401 + nsCOMPtr<nsIDocument> document = do_QueryInterface(domDocument);
1.402 + if (!document)
1.403 + return NS_OK;
1.404 +
1.405 + // Deal with the agent sheets first. Have to do all the style sets by hand.
1.406 + nsCOMPtr<nsIPresShell> shell = document->GetShell();
1.407 + if (shell) {
1.408 + // Reload only the chrome URL agent style sheets.
1.409 + nsCOMArray<nsIStyleSheet> agentSheets;
1.410 + rv = shell->GetAgentStyleSheets(agentSheets);
1.411 + NS_ENSURE_SUCCESS(rv, rv);
1.412 +
1.413 + nsCOMArray<nsIStyleSheet> newAgentSheets;
1.414 + for (int32_t l = 0; l < agentSheets.Count(); ++l) {
1.415 + nsIStyleSheet *sheet = agentSheets[l];
1.416 +
1.417 + nsIURI* uri = sheet->GetSheetURI();
1.418 +
1.419 + if (IsChromeURI(uri)) {
1.420 + // Reload the sheet.
1.421 + nsRefPtr<nsCSSStyleSheet> newSheet;
1.422 + rv = document->LoadChromeSheetSync(uri, true,
1.423 + getter_AddRefs(newSheet));
1.424 + if (NS_FAILED(rv)) return rv;
1.425 + if (newSheet) {
1.426 + rv = newAgentSheets.AppendObject(newSheet) ? NS_OK : NS_ERROR_FAILURE;
1.427 + if (NS_FAILED(rv)) return rv;
1.428 + }
1.429 + }
1.430 + else { // Just use the same sheet.
1.431 + rv = newAgentSheets.AppendObject(sheet) ? NS_OK : NS_ERROR_FAILURE;
1.432 + if (NS_FAILED(rv)) return rv;
1.433 + }
1.434 + }
1.435 +
1.436 + rv = shell->SetAgentStyleSheets(newAgentSheets);
1.437 + NS_ENSURE_SUCCESS(rv, rv);
1.438 + }
1.439 +
1.440 + // Build an array of nsIURIs of style sheets we need to load.
1.441 + nsCOMArray<nsIStyleSheet> oldSheets;
1.442 + nsCOMArray<nsIStyleSheet> newSheets;
1.443 +
1.444 + int32_t count = document->GetNumberOfStyleSheets();
1.445 +
1.446 + // Iterate over the style sheets.
1.447 + int32_t i;
1.448 + for (i = 0; i < count; i++) {
1.449 + // Get the style sheet
1.450 + nsIStyleSheet *styleSheet = document->GetStyleSheetAt(i);
1.451 +
1.452 + if (!oldSheets.AppendObject(styleSheet)) {
1.453 + return NS_ERROR_OUT_OF_MEMORY;
1.454 + }
1.455 + }
1.456 +
1.457 + // Iterate over our old sheets and kick off a sync load of the new
1.458 + // sheet if and only if it's a chrome URL.
1.459 + for (i = 0; i < count; i++) {
1.460 + nsRefPtr<nsCSSStyleSheet> sheet = do_QueryObject(oldSheets[i]);
1.461 + nsIURI* uri = sheet ? sheet->GetOriginalURI() : nullptr;
1.462 +
1.463 + if (uri && IsChromeURI(uri)) {
1.464 + // Reload the sheet.
1.465 + nsRefPtr<nsCSSStyleSheet> newSheet;
1.466 + // XXX what about chrome sheets that have a title or are disabled? This
1.467 + // only works by sheer dumb luck.
1.468 + document->LoadChromeSheetSync(uri, false, getter_AddRefs(newSheet));
1.469 + // Even if it's null, we put in in there.
1.470 + newSheets.AppendObject(newSheet);
1.471 + }
1.472 + else {
1.473 + // Just use the same sheet.
1.474 + newSheets.AppendObject(sheet);
1.475 + }
1.476 + }
1.477 +
1.478 + // Now notify the document that multiple sheets have been added and removed.
1.479 + document->UpdateStyleSheets(oldSheets, newSheets);
1.480 + return NS_OK;
1.481 +}
1.482 +
1.483 +void
1.484 +nsChromeRegistry::FlushAllCaches()
1.485 +{
1.486 + nsCOMPtr<nsIObserverService> obsSvc =
1.487 + mozilla::services::GetObserverService();
1.488 + NS_ASSERTION(obsSvc, "Couldn't get observer service.");
1.489 +
1.490 + obsSvc->NotifyObservers((nsIChromeRegistry*) this,
1.491 + NS_CHROME_FLUSH_TOPIC, nullptr);
1.492 +}
1.493 +
1.494 +// xxxbsmedberg Move me to nsIWindowMediator
1.495 +NS_IMETHODIMP
1.496 +nsChromeRegistry::ReloadChrome()
1.497 +{
1.498 + UpdateSelectedLocale();
1.499 + FlushAllCaches();
1.500 + // Do a reload of all top level windows.
1.501 + nsresult rv = NS_OK;
1.502 +
1.503 + // Get the window mediator
1.504 + nsCOMPtr<nsIWindowMediator> windowMediator
1.505 + (do_GetService(NS_WINDOWMEDIATOR_CONTRACTID));
1.506 + if (windowMediator) {
1.507 + nsCOMPtr<nsISimpleEnumerator> windowEnumerator;
1.508 +
1.509 + rv = windowMediator->GetEnumerator(nullptr, getter_AddRefs(windowEnumerator));
1.510 + if (NS_SUCCEEDED(rv)) {
1.511 + // Get each dom window
1.512 + bool more;
1.513 + rv = windowEnumerator->HasMoreElements(&more);
1.514 + if (NS_FAILED(rv)) return rv;
1.515 + while (more) {
1.516 + nsCOMPtr<nsISupports> protoWindow;
1.517 + rv = windowEnumerator->GetNext(getter_AddRefs(protoWindow));
1.518 + if (NS_SUCCEEDED(rv)) {
1.519 + nsCOMPtr<nsIDOMWindow> domWindow = do_QueryInterface(protoWindow);
1.520 + if (domWindow) {
1.521 + nsCOMPtr<nsIDOMLocation> location;
1.522 + domWindow->GetLocation(getter_AddRefs(location));
1.523 + if (location) {
1.524 + rv = location->Reload(false);
1.525 + if (NS_FAILED(rv)) return rv;
1.526 + }
1.527 + }
1.528 + }
1.529 + rv = windowEnumerator->HasMoreElements(&more);
1.530 + if (NS_FAILED(rv)) return rv;
1.531 + }
1.532 + }
1.533 + }
1.534 + return rv;
1.535 +}
1.536 +
1.537 +NS_IMETHODIMP
1.538 +nsChromeRegistry::AllowScriptsForPackage(nsIURI* aChromeURI, bool *aResult)
1.539 +{
1.540 + nsresult rv;
1.541 + *aResult = false;
1.542 +
1.543 +#ifdef DEBUG
1.544 + bool isChrome;
1.545 + aChromeURI->SchemeIs("chrome", &isChrome);
1.546 + NS_ASSERTION(isChrome, "Non-chrome URI passed to AllowScriptsForPackage!");
1.547 +#endif
1.548 +
1.549 + nsCOMPtr<nsIURL> url (do_QueryInterface(aChromeURI));
1.550 + NS_ENSURE_TRUE(url, NS_NOINTERFACE);
1.551 +
1.552 + nsAutoCString provider, file;
1.553 + rv = GetProviderAndPath(url, provider, file);
1.554 + NS_ENSURE_SUCCESS(rv, rv);
1.555 +
1.556 + if (!provider.EqualsLiteral("skin"))
1.557 + *aResult = true;
1.558 +
1.559 + return NS_OK;
1.560 +}
1.561 +
1.562 +NS_IMETHODIMP
1.563 +nsChromeRegistry::AllowContentToAccess(nsIURI *aURI, bool *aResult)
1.564 +{
1.565 + nsresult rv;
1.566 +
1.567 + *aResult = false;
1.568 +
1.569 +#ifdef DEBUG
1.570 + bool isChrome;
1.571 + aURI->SchemeIs("chrome", &isChrome);
1.572 + NS_ASSERTION(isChrome, "Non-chrome URI passed to AllowContentToAccess!");
1.573 +#endif
1.574 +
1.575 + nsCOMPtr<nsIURL> url = do_QueryInterface(aURI);
1.576 + if (!url) {
1.577 + NS_ERROR("Chrome URL doesn't implement nsIURL.");
1.578 + return NS_ERROR_UNEXPECTED;
1.579 + }
1.580 +
1.581 + nsAutoCString package;
1.582 + rv = url->GetHostPort(package);
1.583 + NS_ENSURE_SUCCESS(rv, rv);
1.584 +
1.585 + uint32_t flags;
1.586 + rv = GetFlagsFromPackage(package, &flags);
1.587 +
1.588 + if (NS_SUCCEEDED(rv)) {
1.589 + *aResult = !!(flags & CONTENT_ACCESSIBLE);
1.590 + }
1.591 + return NS_OK;
1.592 +}
1.593 +
1.594 +NS_IMETHODIMP_(bool)
1.595 +nsChromeRegistry::WrappersEnabled(nsIURI *aURI)
1.596 +{
1.597 + nsCOMPtr<nsIURL> chromeURL (do_QueryInterface(aURI));
1.598 + if (!chromeURL)
1.599 + return false;
1.600 +
1.601 + bool isChrome = false;
1.602 + nsresult rv = chromeURL->SchemeIs("chrome", &isChrome);
1.603 + if (NS_FAILED(rv) || !isChrome)
1.604 + return false;
1.605 +
1.606 + nsAutoCString package;
1.607 + rv = chromeURL->GetHostPort(package);
1.608 + if (NS_FAILED(rv))
1.609 + return false;
1.610 +
1.611 + uint32_t flags;
1.612 + rv = GetFlagsFromPackage(package, &flags);
1.613 + return NS_SUCCEEDED(rv) && (flags & XPCNATIVEWRAPPERS);
1.614 +}
1.615 +
1.616 +already_AddRefed<nsChromeRegistry>
1.617 +nsChromeRegistry::GetSingleton()
1.618 +{
1.619 + if (gChromeRegistry) {
1.620 + nsRefPtr<nsChromeRegistry> registry = gChromeRegistry;
1.621 + return registry.forget();
1.622 + }
1.623 +
1.624 + nsRefPtr<nsChromeRegistry> cr;
1.625 + if (GeckoProcessType_Content == XRE_GetProcessType())
1.626 + cr = new nsChromeRegistryContent();
1.627 + else
1.628 + cr = new nsChromeRegistryChrome();
1.629 +
1.630 + if (NS_FAILED(cr->Init()))
1.631 + return nullptr;
1.632 +
1.633 + return cr.forget();
1.634 +}
