mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-31 14:15:30 +00:00
700 lines
18 KiB
C++
700 lines
18 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 sw=2 et tw=78: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsChromeRegistry.h"
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#include "nsChromeRegistryChrome.h"
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#include "nsChromeRegistryContent.h"
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#include "prprf.h"
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#include "nsCOMPtr.h"
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#include "nsError.h"
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#include "nsEscape.h"
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#include "nsNetUtil.h"
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#include "nsString.h"
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#include "mozilla/CSSStyleSheet.h"
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#include "mozilla/dom/URL.h"
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#include "nsIConsoleService.h"
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#include "nsIDocument.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMLocation.h"
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#include "nsIDOMWindowCollection.h"
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#include "nsIDOMWindow.h"
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#include "nsIObserverService.h"
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#include "nsIPresShell.h"
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#include "nsIScriptError.h"
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#include "nsIWindowMediator.h"
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nsChromeRegistry* nsChromeRegistry::gChromeRegistry;
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// DO NOT use namespace mozilla; it'll break due to a naming conflict between
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// mozilla::TextRange and a TextRange in OSX headers.
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using mozilla::CSSStyleSheet;
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using mozilla::dom::IsChromeURI;
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////////////////////////////////////////////////////////////////////////////////
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void
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nsChromeRegistry::LogMessage(const char* aMsg, ...)
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{
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nsCOMPtr<nsIConsoleService> console
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(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
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if (!console)
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return;
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va_list args;
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va_start(args, aMsg);
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char* formatted = PR_vsmprintf(aMsg, args);
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va_end(args);
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if (!formatted)
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return;
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console->LogStringMessage(NS_ConvertUTF8toUTF16(formatted).get());
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PR_smprintf_free(formatted);
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}
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void
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nsChromeRegistry::LogMessageWithContext(nsIURI* aURL, uint32_t aLineNumber, uint32_t flags,
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const char* aMsg, ...)
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{
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nsresult rv;
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nsCOMPtr<nsIConsoleService> console
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(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
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nsCOMPtr<nsIScriptError> error
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(do_CreateInstance(NS_SCRIPTERROR_CONTRACTID));
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if (!console || !error)
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return;
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va_list args;
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va_start(args, aMsg);
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char* formatted = PR_vsmprintf(aMsg, args);
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va_end(args);
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if (!formatted)
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return;
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nsCString spec;
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if (aURL)
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aURL->GetSpec(spec);
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rv = error->Init(NS_ConvertUTF8toUTF16(formatted),
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NS_ConvertUTF8toUTF16(spec),
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EmptyString(),
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aLineNumber, 0, flags, "chrome registration");
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PR_smprintf_free(formatted);
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if (NS_FAILED(rv))
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return;
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console->LogMessage(error);
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}
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nsChromeRegistry::~nsChromeRegistry()
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{
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gChromeRegistry = nullptr;
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}
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NS_INTERFACE_MAP_BEGIN(nsChromeRegistry)
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NS_INTERFACE_MAP_ENTRY(nsIChromeRegistry)
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NS_INTERFACE_MAP_ENTRY(nsIXULChromeRegistry)
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NS_INTERFACE_MAP_ENTRY(nsIToolkitChromeRegistry)
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#ifdef MOZ_XUL
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NS_INTERFACE_MAP_ENTRY(nsIXULOverlayProvider)
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#endif
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NS_INTERFACE_MAP_ENTRY(nsIObserver)
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NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIChromeRegistry)
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NS_INTERFACE_MAP_END
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NS_IMPL_ADDREF(nsChromeRegistry)
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NS_IMPL_RELEASE(nsChromeRegistry)
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////////////////////////////////////////////////////////////////////////////////
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// nsIChromeRegistry methods:
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already_AddRefed<nsIChromeRegistry>
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nsChromeRegistry::GetService()
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{
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if (!gChromeRegistry)
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{
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// We don't actually want this ref, we just want the service to
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// initialize if it hasn't already.
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nsCOMPtr<nsIChromeRegistry> reg(
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do_GetService(NS_CHROMEREGISTRY_CONTRACTID));
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if (!gChromeRegistry)
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return nullptr;
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}
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nsCOMPtr<nsIChromeRegistry> registry = gChromeRegistry;
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return registry.forget();
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}
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nsresult
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nsChromeRegistry::Init()
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{
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// This initialization process is fairly complicated and may cause reentrant
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// getservice calls to resolve chrome URIs (especially locale files). We
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// don't want that, so we inform the protocol handler about our existence
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// before we are actually fully initialized.
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gChromeRegistry = this;
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mInitialized = true;
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return NS_OK;
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}
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nsresult
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nsChromeRegistry::GetProviderAndPath(nsIURL* aChromeURL,
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nsACString& aProvider, nsACString& aPath)
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{
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nsresult rv;
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#ifdef DEBUG
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bool isChrome;
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aChromeURL->SchemeIs("chrome", &isChrome);
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NS_ASSERTION(isChrome, "Non-chrome URI?");
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#endif
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nsAutoCString path;
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rv = aChromeURL->GetPath(path);
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NS_ENSURE_SUCCESS(rv, rv);
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if (path.Length() < 3) {
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LogMessage("Invalid chrome URI: %s", path.get());
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return NS_ERROR_FAILURE;
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}
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path.SetLength(nsUnescapeCount(path.BeginWriting()));
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NS_ASSERTION(path.First() == '/', "Path should always begin with a slash!");
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int32_t slash = path.FindChar('/', 1);
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if (slash == 1) {
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LogMessage("Invalid chrome URI: %s", path.get());
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return NS_ERROR_FAILURE;
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}
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if (slash == -1) {
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aPath.Truncate();
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}
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else {
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if (slash == (int32_t) path.Length() - 1)
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aPath.Truncate();
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else
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aPath.Assign(path.get() + slash + 1, path.Length() - slash - 1);
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--slash;
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}
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aProvider.Assign(path.get() + 1, slash);
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return NS_OK;
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}
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nsresult
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nsChromeRegistry::Canonify(nsIURL* aChromeURL)
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{
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NS_NAMED_LITERAL_CSTRING(kSlash, "/");
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nsresult rv;
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nsAutoCString provider, path;
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rv = GetProviderAndPath(aChromeURL, provider, path);
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NS_ENSURE_SUCCESS(rv, rv);
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if (path.IsEmpty()) {
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nsAutoCString package;
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rv = aChromeURL->GetHost(package);
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NS_ENSURE_SUCCESS(rv, rv);
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// we re-use the "path" local string to build a new URL path
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path.Assign(kSlash + provider + kSlash + package);
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if (provider.EqualsLiteral("content")) {
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path.AppendLiteral(".xul");
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}
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else if (provider.EqualsLiteral("locale")) {
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path.AppendLiteral(".dtd");
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}
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else if (provider.EqualsLiteral("skin")) {
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path.AppendLiteral(".css");
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}
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else {
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return NS_ERROR_INVALID_ARG;
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}
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aChromeURL->SetPath(path);
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}
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else {
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// prevent directory traversals ("..")
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// path is already unescaped once, but uris can get unescaped twice
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const char* pos = path.BeginReading();
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const char* end = path.EndReading();
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while (pos < end) {
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switch (*pos) {
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case ':':
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return NS_ERROR_DOM_BAD_URI;
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case '.':
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if (pos[1] == '.')
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return NS_ERROR_DOM_BAD_URI;
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break;
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case '%':
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// chrome: URIs with double-escapes are trying to trick us.
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// watch for %2e, and %25 in case someone triple unescapes
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if (pos[1] == '2' &&
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( pos[2] == 'e' || pos[2] == 'E' ||
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pos[2] == '5' ))
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return NS_ERROR_DOM_BAD_URI;
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break;
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case '?':
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case '#':
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pos = end;
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continue;
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}
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++pos;
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsChromeRegistry::ConvertChromeURL(nsIURI* aChromeURI, nsIURI* *aResult)
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{
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nsresult rv;
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NS_ASSERTION(aChromeURI, "null url!");
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if (mOverrideTable.Get(aChromeURI, aResult))
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return NS_OK;
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nsCOMPtr<nsIURL> chromeURL (do_QueryInterface(aChromeURI));
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NS_ENSURE_TRUE(chromeURL, NS_NOINTERFACE);
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nsAutoCString package, provider, path;
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rv = chromeURL->GetHostPort(package);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = GetProviderAndPath(chromeURL, provider, path);
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NS_ENSURE_SUCCESS(rv, rv);
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nsIURI* baseURI = GetBaseURIFromPackage(package, provider, path);
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uint32_t flags;
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rv = GetFlagsFromPackage(package, &flags);
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if (NS_FAILED(rv))
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return rv;
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if (flags & PLATFORM_PACKAGE) {
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#if defined(XP_WIN)
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path.Insert("win/", 0);
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#elif defined(XP_MACOSX)
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path.Insert("mac/", 0);
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#else
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path.Insert("unix/", 0);
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#endif
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}
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if (!baseURI) {
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LogMessage("No chrome package registered for chrome://%s/%s/%s",
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package.get(), provider.get(), path.get());
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return NS_ERROR_FILE_NOT_FOUND;
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}
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return NS_NewURI(aResult, path, nullptr, baseURI);
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}
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////////////////////////////////////////////////////////////////////////
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// theme stuff
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static void FlushSkinBindingsForWindow(nsIDOMWindow* aWindow)
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{
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// Get the DOM document.
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nsCOMPtr<nsIDOMDocument> domDocument;
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aWindow->GetDocument(getter_AddRefs(domDocument));
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if (!domDocument)
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return;
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nsCOMPtr<nsIDocument> document = do_QueryInterface(domDocument);
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if (!document)
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return;
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// Annihilate all XBL bindings.
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document->FlushSkinBindings();
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}
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// XXXbsmedberg: move this to nsIWindowMediator
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NS_IMETHODIMP nsChromeRegistry::RefreshSkins()
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{
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nsCOMPtr<nsIWindowMediator> windowMediator
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(do_GetService(NS_WINDOWMEDIATOR_CONTRACTID));
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if (!windowMediator)
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return NS_OK;
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nsCOMPtr<nsISimpleEnumerator> windowEnumerator;
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windowMediator->GetEnumerator(nullptr, getter_AddRefs(windowEnumerator));
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bool more;
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windowEnumerator->HasMoreElements(&more);
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while (more) {
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nsCOMPtr<nsISupports> protoWindow;
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windowEnumerator->GetNext(getter_AddRefs(protoWindow));
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if (protoWindow) {
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nsCOMPtr<nsIDOMWindow> domWindow = do_QueryInterface(protoWindow);
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if (domWindow)
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FlushSkinBindingsForWindow(domWindow);
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}
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windowEnumerator->HasMoreElements(&more);
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}
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FlushSkinCaches();
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windowMediator->GetEnumerator(nullptr, getter_AddRefs(windowEnumerator));
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windowEnumerator->HasMoreElements(&more);
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while (more) {
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nsCOMPtr<nsISupports> protoWindow;
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windowEnumerator->GetNext(getter_AddRefs(protoWindow));
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if (protoWindow) {
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nsCOMPtr<nsIDOMWindow> domWindow = do_QueryInterface(protoWindow);
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if (domWindow)
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RefreshWindow(domWindow);
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}
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windowEnumerator->HasMoreElements(&more);
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}
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return NS_OK;
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}
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void
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nsChromeRegistry::FlushSkinCaches()
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{
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nsCOMPtr<nsIObserverService> obsSvc =
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mozilla::services::GetObserverService();
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NS_ASSERTION(obsSvc, "Couldn't get observer service.");
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obsSvc->NotifyObservers(static_cast<nsIChromeRegistry*>(this),
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NS_CHROME_FLUSH_SKINS_TOPIC, nullptr);
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}
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// XXXbsmedberg: move this to windowmediator
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nsresult nsChromeRegistry::RefreshWindow(nsIDOMWindow* aWindow)
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{
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// Deal with our subframes first.
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nsCOMPtr<nsIDOMWindowCollection> frames;
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aWindow->GetFrames(getter_AddRefs(frames));
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uint32_t length;
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frames->GetLength(&length);
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uint32_t j;
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for (j = 0; j < length; j++) {
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nsCOMPtr<nsIDOMWindow> childWin;
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frames->Item(j, getter_AddRefs(childWin));
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RefreshWindow(childWin);
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}
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nsresult rv;
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// Get the DOM document.
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nsCOMPtr<nsIDOMDocument> domDocument;
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aWindow->GetDocument(getter_AddRefs(domDocument));
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if (!domDocument)
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return NS_OK;
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nsCOMPtr<nsIDocument> document = do_QueryInterface(domDocument);
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if (!document)
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return NS_OK;
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// Deal with the agent sheets first. Have to do all the style sets by hand.
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nsCOMPtr<nsIPresShell> shell = document->GetShell();
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if (shell) {
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// Reload only the chrome URL agent style sheets.
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nsCOMArray<nsIStyleSheet> agentSheets;
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rv = shell->GetAgentStyleSheets(agentSheets);
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMArray<nsIStyleSheet> newAgentSheets;
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for (int32_t l = 0; l < agentSheets.Count(); ++l) {
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nsIStyleSheet *sheet = agentSheets[l];
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nsIURI* uri = sheet->GetSheetURI();
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if (IsChromeURI(uri)) {
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// Reload the sheet.
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nsRefPtr<CSSStyleSheet> newSheet;
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rv = document->LoadChromeSheetSync(uri, true,
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getter_AddRefs(newSheet));
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if (NS_FAILED(rv)) return rv;
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if (newSheet) {
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rv = newAgentSheets.AppendObject(newSheet) ? NS_OK : NS_ERROR_FAILURE;
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if (NS_FAILED(rv)) return rv;
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}
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}
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else { // Just use the same sheet.
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rv = newAgentSheets.AppendObject(sheet) ? NS_OK : NS_ERROR_FAILURE;
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if (NS_FAILED(rv)) return rv;
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}
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}
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rv = shell->SetAgentStyleSheets(newAgentSheets);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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// Build an array of nsIURIs of style sheets we need to load.
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nsCOMArray<nsIStyleSheet> oldSheets;
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nsCOMArray<nsIStyleSheet> newSheets;
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int32_t count = document->GetNumberOfStyleSheets();
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// Iterate over the style sheets.
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int32_t i;
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for (i = 0; i < count; i++) {
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// Get the style sheet
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nsIStyleSheet *styleSheet = document->GetStyleSheetAt(i);
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if (!oldSheets.AppendObject(styleSheet)) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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}
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// Iterate over our old sheets and kick off a sync load of the new
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// sheet if and only if it's a chrome URL.
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for (i = 0; i < count; i++) {
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nsRefPtr<CSSStyleSheet> sheet = do_QueryObject(oldSheets[i]);
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nsIURI* uri = sheet ? sheet->GetOriginalURI() : nullptr;
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if (uri && IsChromeURI(uri)) {
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// Reload the sheet.
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nsRefPtr<CSSStyleSheet> newSheet;
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// XXX what about chrome sheets that have a title or are disabled? This
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// only works by sheer dumb luck.
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document->LoadChromeSheetSync(uri, false, getter_AddRefs(newSheet));
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// Even if it's null, we put in in there.
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newSheets.AppendObject(newSheet);
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}
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else {
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// Just use the same sheet.
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newSheets.AppendObject(sheet);
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}
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}
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// Now notify the document that multiple sheets have been added and removed.
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document->UpdateStyleSheets(oldSheets, newSheets);
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return NS_OK;
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}
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void
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nsChromeRegistry::FlushAllCaches()
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{
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nsCOMPtr<nsIObserverService> obsSvc =
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mozilla::services::GetObserverService();
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NS_ASSERTION(obsSvc, "Couldn't get observer service.");
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obsSvc->NotifyObservers((nsIChromeRegistry*) this,
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NS_CHROME_FLUSH_TOPIC, nullptr);
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}
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// xxxbsmedberg Move me to nsIWindowMediator
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NS_IMETHODIMP
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nsChromeRegistry::ReloadChrome()
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{
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UpdateSelectedLocale();
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FlushAllCaches();
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// Do a reload of all top level windows.
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nsresult rv = NS_OK;
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// Get the window mediator
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nsCOMPtr<nsIWindowMediator> windowMediator
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(do_GetService(NS_WINDOWMEDIATOR_CONTRACTID));
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if (windowMediator) {
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nsCOMPtr<nsISimpleEnumerator> windowEnumerator;
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rv = windowMediator->GetEnumerator(nullptr, getter_AddRefs(windowEnumerator));
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if (NS_SUCCEEDED(rv)) {
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// Get each dom window
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bool more;
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rv = windowEnumerator->HasMoreElements(&more);
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if (NS_FAILED(rv)) return rv;
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while (more) {
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nsCOMPtr<nsISupports> protoWindow;
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rv = windowEnumerator->GetNext(getter_AddRefs(protoWindow));
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if (NS_SUCCEEDED(rv)) {
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nsCOMPtr<nsIDOMWindow> domWindow = do_QueryInterface(protoWindow);
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if (domWindow) {
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nsCOMPtr<nsIDOMLocation> location;
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domWindow->GetLocation(getter_AddRefs(location));
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if (location) {
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rv = location->Reload(false);
|
|
if (NS_FAILED(rv)) return rv;
|
|
}
|
|
}
|
|
}
|
|
rv = windowEnumerator->HasMoreElements(&more);
|
|
if (NS_FAILED(rv)) return rv;
|
|
}
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsChromeRegistry::AllowScriptsForPackage(nsIURI* aChromeURI, bool *aResult)
|
|
{
|
|
nsresult rv;
|
|
*aResult = false;
|
|
|
|
#ifdef DEBUG
|
|
bool isChrome;
|
|
aChromeURI->SchemeIs("chrome", &isChrome);
|
|
NS_ASSERTION(isChrome, "Non-chrome URI passed to AllowScriptsForPackage!");
|
|
#endif
|
|
|
|
nsCOMPtr<nsIURL> url (do_QueryInterface(aChromeURI));
|
|
NS_ENSURE_TRUE(url, NS_NOINTERFACE);
|
|
|
|
nsAutoCString provider, file;
|
|
rv = GetProviderAndPath(url, provider, file);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (!provider.EqualsLiteral("skin"))
|
|
*aResult = true;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsChromeRegistry::AllowContentToAccess(nsIURI *aURI, bool *aResult)
|
|
{
|
|
nsresult rv;
|
|
|
|
*aResult = false;
|
|
|
|
#ifdef DEBUG
|
|
bool isChrome;
|
|
aURI->SchemeIs("chrome", &isChrome);
|
|
NS_ASSERTION(isChrome, "Non-chrome URI passed to AllowContentToAccess!");
|
|
#endif
|
|
|
|
nsCOMPtr<nsIURL> url = do_QueryInterface(aURI);
|
|
if (!url) {
|
|
NS_ERROR("Chrome URL doesn't implement nsIURL.");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
nsAutoCString package;
|
|
rv = url->GetHostPort(package);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
uint32_t flags;
|
|
rv = GetFlagsFromPackage(package, &flags);
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
*aResult = !!(flags & CONTENT_ACCESSIBLE);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsChromeRegistry::CanLoadURLRemotely(nsIURI *aURI, bool *aResult)
|
|
{
|
|
nsresult rv;
|
|
|
|
*aResult = false;
|
|
|
|
#ifdef DEBUG
|
|
bool isChrome;
|
|
aURI->SchemeIs("chrome", &isChrome);
|
|
NS_ASSERTION(isChrome, "Non-chrome URI passed to CanLoadURLRemotely!");
|
|
#endif
|
|
|
|
nsCOMPtr<nsIURL> url = do_QueryInterface(aURI);
|
|
if (!url) {
|
|
NS_ERROR("Chrome URL doesn't implement nsIURL.");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
nsAutoCString package;
|
|
rv = url->GetHostPort(package);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
uint32_t flags;
|
|
rv = GetFlagsFromPackage(package, &flags);
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
*aResult = !!(flags & REMOTE_ALLOWED);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsChromeRegistry::MustLoadURLRemotely(nsIURI *aURI, bool *aResult)
|
|
{
|
|
nsresult rv;
|
|
|
|
*aResult = false;
|
|
|
|
#ifdef DEBUG
|
|
bool isChrome;
|
|
aURI->SchemeIs("chrome", &isChrome);
|
|
NS_ASSERTION(isChrome, "Non-chrome URI passed to MustLoadURLRemotely!");
|
|
#endif
|
|
|
|
nsCOMPtr<nsIURL> url = do_QueryInterface(aURI);
|
|
if (!url) {
|
|
NS_ERROR("Chrome URL doesn't implement nsIURL.");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
nsAutoCString package;
|
|
rv = url->GetHostPort(package);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
uint32_t flags;
|
|
rv = GetFlagsFromPackage(package, &flags);
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
*aResult = !!(flags & REMOTE_REQUIRED);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP_(bool)
|
|
nsChromeRegistry::WrappersEnabled(nsIURI *aURI)
|
|
{
|
|
nsCOMPtr<nsIURL> chromeURL (do_QueryInterface(aURI));
|
|
if (!chromeURL)
|
|
return false;
|
|
|
|
bool isChrome = false;
|
|
nsresult rv = chromeURL->SchemeIs("chrome", &isChrome);
|
|
if (NS_FAILED(rv) || !isChrome)
|
|
return false;
|
|
|
|
nsAutoCString package;
|
|
rv = chromeURL->GetHostPort(package);
|
|
if (NS_FAILED(rv))
|
|
return false;
|
|
|
|
uint32_t flags;
|
|
rv = GetFlagsFromPackage(package, &flags);
|
|
return NS_SUCCEEDED(rv) && (flags & XPCNATIVEWRAPPERS);
|
|
}
|
|
|
|
already_AddRefed<nsChromeRegistry>
|
|
nsChromeRegistry::GetSingleton()
|
|
{
|
|
if (gChromeRegistry) {
|
|
nsRefPtr<nsChromeRegistry> registry = gChromeRegistry;
|
|
return registry.forget();
|
|
}
|
|
|
|
nsRefPtr<nsChromeRegistry> cr;
|
|
if (GeckoProcessType_Content == XRE_GetProcessType())
|
|
cr = new nsChromeRegistryContent();
|
|
else
|
|
cr = new nsChromeRegistryChrome();
|
|
|
|
if (NS_FAILED(cr->Init()))
|
|
return nullptr;
|
|
|
|
return cr.forget();
|
|
}
|