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gecko/chrome/src/nsChromeRegistry.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 sw=2 et tw=78: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Original Author: David W. Hyatt (hyatt@netscape.com)
* Gagan Saksena <gagan@netscape.com>
* Benjamin Smedberg <benjamin@smedbergs.us>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsChromeRegistry.h"
#include <string.h>
#include "prio.h"
#include "prprf.h"
#if defined(XP_WIN)
#include <windows.h>
#elif defined(XP_MACOSX)
#include <Carbon/Carbon.h>
#elif defined(MOZ_WIDGET_GTK2)
#include <gtk/gtk.h>
#endif
#include "nsAppDirectoryServiceDefs.h"
#include "nsArrayEnumerator.h"
#include "nsStringEnumerator.h"
#include "nsEnumeratorUtils.h"
#include "nsCOMPtr.h"
#include "nsDOMError.h"
#include "nsEscape.h"
#include "nsInt64.h"
#include "nsLayoutCID.h"
#include "nsNetCID.h"
#include "nsNetUtil.h"
#include "nsReadableUtils.h"
#include "nsStaticAtom.h"
#include "nsString.h"
#include "nsUnicharUtils.h"
#include "nsWidgetsCID.h"
#include "nsXPCOMCIDInternal.h"
#include "nsXPIDLString.h"
#include "nsXULAppAPI.h"
#include "nsTextFormatter.h"
#include "nsIAtom.h"
#include "nsICommandLine.h"
#include "nsICSSLoader.h"
#include "nsICSSStyleSheet.h"
#include "nsIConsoleService.h"
#include "nsIDirectoryService.h"
#include "nsIDocument.h"
#include "nsIDOMDocument.h"
#include "nsIDocShell.h"
#include "nsIDocumentObserver.h"
#include "nsIDOMElement.h"
#include "nsIDOMLocation.h"
#include "nsIDOMWindowCollection.h"
#include "nsIDOMWindowInternal.h"
#include "nsIFileChannel.h"
#include "nsIFileURL.h"
#include "nsIIOService.h"
#include "nsIJARProtocolHandler.h"
#include "nsIJARURI.h"
#include "nsILocalFile.h"
#include "nsILocaleService.h"
#include "nsILookAndFeel.h"
#include "nsIObserverService.h"
#include "nsIPrefService.h"
#include "nsIPrefBranch.h"
#include "nsIPrefBranch2.h"
#include "nsIPresShell.h"
#include "nsIProtocolHandler.h"
#include "nsIResProtocolHandler.h"
#include "nsIScriptError.h"
#include "nsIServiceManager.h"
#include "nsISimpleEnumerator.h"
#include "nsIStyleSheet.h"
#include "nsISupportsArray.h"
#include "nsIVersionComparator.h"
#include "nsIWindowMediator.h"
#include "nsIXPConnect.h"
#include "nsIXULAppInfo.h"
#include "nsIXULRuntime.h"
#define UILOCALE_CMD_LINE_ARG "UILocale"
#define MATCH_OS_LOCALE_PREF "intl.locale.matchOS"
#define SELECTED_LOCALE_PREF "general.useragent.locale"
#define SELECTED_SKIN_PREF "general.skins.selectedSkin"
static NS_DEFINE_CID(kCSSLoaderCID, NS_CSS_LOADER_CID);
static NS_DEFINE_CID(kLookAndFeelCID, NS_LOOKANDFEEL_CID);
nsChromeRegistry* nsChromeRegistry::gChromeRegistry;
////////////////////////////////////////////////////////////////////////////////
static void
LogMessage(const char* aMsg, ...)
{
nsCOMPtr<nsIConsoleService> console
(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
if (!console)
return;
va_list args;
va_start(args, aMsg);
char* formatted = PR_vsmprintf(aMsg, args);
va_end(args);
if (!formatted)
return;
console->LogStringMessage(NS_ConvertUTF8toUTF16(formatted).get());
PR_smprintf_free(formatted);
}
static void
LogMessageWithContext(nsIURI* aURL, PRUint32 aLineNumber, PRUint32 flags,
const char* aMsg, ...)
{
nsresult rv;
nsCOMPtr<nsIConsoleService> console
(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
nsCOMPtr<nsIScriptError> error
(do_CreateInstance(NS_SCRIPTERROR_CONTRACTID));
if (!console || !error)
return;
va_list args;
va_start(args, aMsg);
char* formatted = PR_vsmprintf(aMsg, args);
va_end(args);
if (!formatted)
return;
nsCString spec;
if (aURL)
aURL->GetSpec(spec);
rv = error->Init(NS_ConvertUTF8toUTF16(formatted).get(),
NS_ConvertUTF8toUTF16(spec).get(),
nsnull,
aLineNumber, 0, flags, "chrome registration");
PR_smprintf_free(formatted);
if (NS_FAILED(rv))
return;
console->LogMessage(error);
}
// We use a "best-fit" algorithm for matching locales and themes.
// 1) the exact selected locale/theme
// 2) (locales only) same language, different country
// e.g. en-GB is the selected locale, only en-US is available
// 3) any available locale/theme
/**
* Match the language-part of two lang-COUNTRY codes, hopefully but
* not guaranteed to be in the form ab-CD or abz-CD. "ab" should also
* work, any other garbage-in will produce undefined results as long
* as it does not crash.
*/
static PRBool
LanguagesMatch(const nsACString& a, const nsACString& b)
{
if (a.Length() < 2 || b.Length() < 2)
return PR_FALSE;
nsACString::const_iterator as, ae, bs, be;
a.BeginReading(as);
a.EndReading(ae);
b.BeginReading(bs);
b.EndReading(be);
while (*as == *bs) {
if (*as == '-')
return PR_TRUE;
++as; ++bs;
// reached the end
if (as == ae && bs == be)
return PR_TRUE;
// "a" is short
if (as == ae)
return (*bs == '-');
// "b" is short
if (bs == be)
return (*as == '-');
}
return PR_FALSE;
}
static PRBool
CanLoadResource(nsIURI* aResourceURI)
{
PRBool isLocalResource = PR_FALSE;
(void)NS_URIChainHasFlags(aResourceURI,
nsIProtocolHandler::URI_IS_LOCAL_RESOURCE,
&isLocalResource);
return isLocalResource;
}
nsChromeRegistry::ProviderEntry*
nsChromeRegistry::nsProviderArray::GetProvider(const nsACString& aPreferred, MatchType aType)
{
PRInt32 i = mArray.Count();
if (!i)
return nsnull;
ProviderEntry* found = nsnull; // Only set if we find a partial-match locale
ProviderEntry* entry;
while (i--) {
entry = reinterpret_cast<ProviderEntry*>(mArray[i]);
if (aPreferred.Equals(entry->provider))
return entry;
if (aType != LOCALE)
continue;
if (LanguagesMatch(aPreferred, entry->provider)) {
found = entry;
continue;
}
if (!found && entry->provider.EqualsLiteral("en-US"))
found = entry;
}
if (!found && aType != EXACT)
return entry;
return found;
}
nsIURI*
nsChromeRegistry::nsProviderArray::GetBase(const nsACString& aPreferred, MatchType aType)
{
ProviderEntry* provider = GetProvider(aPreferred, aType);
if (!provider)
return nsnull;
return provider->baseURI;
}
const nsACString&
nsChromeRegistry::nsProviderArray::GetSelected(const nsACString& aPreferred, MatchType aType)
{
ProviderEntry* entry = GetProvider(aPreferred, aType);
if (entry)
return entry->provider;
return EmptyCString();
}
void
nsChromeRegistry::nsProviderArray::SetBase(const nsACString& aProvider, nsIURI* aBaseURL)
{
ProviderEntry* provider = GetProvider(aProvider, EXACT);
if (provider) {
provider->baseURI = aBaseURL;
return;
}
// no existing entries, add a new one
provider = new ProviderEntry(aProvider, aBaseURL);
if (!provider)
return; // It's safe to silently fail on OOM
mArray.AppendElement(provider);
}
void
nsChromeRegistry::nsProviderArray::EnumerateToArray(nsTArray<nsCString> *a)
{
PRInt32 i = mArray.Count();
while (i--) {
ProviderEntry *entry = reinterpret_cast<ProviderEntry*>(mArray[i]);
a->AppendElement(entry->provider);
}
}
void
nsChromeRegistry::nsProviderArray::Clear()
{
PRInt32 i = mArray.Count();
while (i--) {
ProviderEntry* entry = reinterpret_cast<ProviderEntry*>(mArray[i]);
delete entry;
}
mArray.Clear();
}
nsChromeRegistry::PackageEntry::PackageEntry(const nsACString& aPackage) :
package(aPackage), flags(0)
{
}
PLHashNumber
nsChromeRegistry::HashKey(PLDHashTable *table, const void *key)
{
const nsACString& str = *reinterpret_cast<const nsACString*>(key);
return HashString(str);
}
PRBool
nsChromeRegistry::MatchKey(PLDHashTable *table, const PLDHashEntryHdr *entry,
const void *key)
{
const nsACString& str = *reinterpret_cast<const nsACString*>(key);
const PackageEntry* pentry = static_cast<const PackageEntry*>(entry);
return str.Equals(pentry->package);
}
void
nsChromeRegistry::ClearEntry(PLDHashTable *table, PLDHashEntryHdr *entry)
{
PackageEntry* pentry = static_cast<PackageEntry*>(entry);
pentry->~PackageEntry();
}
PRBool
nsChromeRegistry::InitEntry(PLDHashTable *table, PLDHashEntryHdr *entry,
const void *key)
{
const nsACString& str = *reinterpret_cast<const nsACString*>(key);
new (entry) PackageEntry(str);
return PR_TRUE;
}
const PLDHashTableOps
nsChromeRegistry::kTableOps = {
PL_DHashAllocTable,
PL_DHashFreeTable,
HashKey,
MatchKey,
PL_DHashMoveEntryStub,
ClearEntry,
PL_DHashFinalizeStub,
InitEntry
};
void
nsChromeRegistry::OverlayListEntry::AddURI(nsIURI* aURI)
{
PRInt32 i = mArray.Count();
while (i--) {
PRBool equals;
if (NS_SUCCEEDED(aURI->Equals(mArray[i], &equals)) && equals)
return;
}
mArray.AppendObject(aURI);
}
void
nsChromeRegistry::OverlayListHash::Add(nsIURI* aBase, nsIURI* aOverlay)
{
OverlayListEntry* entry = mTable.PutEntry(aBase);
if (entry)
entry->AddURI(aOverlay);
}
const nsCOMArray<nsIURI>*
nsChromeRegistry::OverlayListHash::GetArray(nsIURI* aBase)
{
OverlayListEntry* entry = mTable.GetEntry(aBase);
if (!entry)
return nsnull;
return &entry->mArray;
}
nsChromeRegistry::~nsChromeRegistry()
{
if (mPackagesHash.ops)
PL_DHashTableFinish(&mPackagesHash);
gChromeRegistry = nsnull;
}
NS_INTERFACE_MAP_BEGIN(nsChromeRegistry)
NS_INTERFACE_MAP_ENTRY(nsIChromeRegistry)
NS_INTERFACE_MAP_ENTRY(nsIXULChromeRegistry)
NS_INTERFACE_MAP_ENTRY(nsIToolkitChromeRegistry)
#ifdef MOZ_XUL
NS_INTERFACE_MAP_ENTRY(nsIXULOverlayProvider)
#endif
NS_INTERFACE_MAP_ENTRY(nsIObserver)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIChromeRegistry)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(nsChromeRegistry)
NS_IMPL_RELEASE(nsChromeRegistry)
////////////////////////////////////////////////////////////////////////////////
// nsIChromeRegistry methods:
static nsresult
getUILangCountry(nsACString& aUILang)
{
nsresult rv;
nsCOMPtr<nsILocaleService> localeService = do_GetService(NS_LOCALESERVICE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString uiLang;
rv = localeService->GetLocaleComponentForUserAgent(uiLang);
NS_ENSURE_SUCCESS(rv, rv);
CopyUTF16toUTF8(uiLang, aUILang);
return NS_OK;
}
nsresult
nsChromeRegistry::Init()
{
nsresult rv;
// Check to see if necko and the JAR protocol handler are registered yet
// if not, somebody is doing work during XPCOM registration that they
// shouldn't be doing. See bug 292549, where JS components are trying
// to call Components.utils.import("chrome:///") early in registration
nsCOMPtr<nsIIOService> io (do_GetIOService());
if (!io) return NS_ERROR_FAILURE;
nsCOMPtr<nsIProtocolHandler> ph;
rv = io->GetProtocolHandler("jar", getter_AddRefs(ph));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIJARProtocolHandler> jph = do_QueryInterface(ph);
if (!jph)
return NS_ERROR_NOT_INITIALIZED;
if (!PL_DHashTableInit(&mPackagesHash, &kTableOps,
nsnull, sizeof(PackageEntry), 16))
return NS_ERROR_FAILURE;
if (!mOverlayHash.Init() ||
!mStyleHash.Init() ||
!mOverrideTable.Init())
return NS_ERROR_FAILURE;
mSelectedLocale = NS_LITERAL_CSTRING("en-US");
mSelectedSkin = NS_LITERAL_CSTRING("classic/1.0");
// This initialization process is fairly complicated and may cause reentrant
// getservice calls to resolve chrome URIs (especially locale files). We
// don't want that, so we inform the protocol handler about our existence
// before we are actually fully initialized.
gChromeRegistry = this;
PRBool safeMode = PR_FALSE;
nsCOMPtr<nsIXULRuntime> xulrun (do_GetService(XULAPPINFO_SERVICE_CONTRACTID));
if (xulrun)
xulrun->GetInSafeMode(&safeMode);
nsCOMPtr<nsIPrefService> prefserv (do_GetService(NS_PREFSERVICE_CONTRACTID));
nsCOMPtr<nsIPrefBranch> prefs;
if (safeMode)
prefserv->GetDefaultBranch(nsnull, getter_AddRefs(prefs));
else
prefs = do_QueryInterface(prefserv);
if (!prefs) {
NS_WARNING("Could not get pref service!");
}
else {
nsXPIDLCString provider;
rv = prefs->GetCharPref(SELECTED_SKIN_PREF, getter_Copies(provider));
if (NS_SUCCEEDED(rv))
mSelectedSkin = provider;
SelectLocaleFromPref(prefs);
nsCOMPtr<nsIPrefBranch2> prefs2 (do_QueryInterface(prefs));
if (prefs2) {
rv = prefs2->AddObserver(MATCH_OS_LOCALE_PREF, this, PR_TRUE);
rv = prefs2->AddObserver(SELECTED_LOCALE_PREF, this, PR_TRUE);
rv = prefs2->AddObserver(SELECTED_SKIN_PREF, this, PR_TRUE);
}
}
nsCOMPtr<nsIObserverService> obsService (do_GetService("@mozilla.org/observer-service;1"));
if (obsService) {
obsService->AddObserver(this, "command-line-startup", PR_TRUE);
obsService->AddObserver(this, "profile-initial-state", PR_TRUE);
}
CheckForNewChrome();
mInitialized = PR_TRUE;
return NS_OK;
}
NS_IMETHODIMP
nsChromeRegistry::CheckForOSAccessibility()
{
nsresult rv;
nsCOMPtr<nsILookAndFeel> lookAndFeel (do_GetService(kLookAndFeelCID));
if (lookAndFeel) {
PRInt32 useAccessibilityTheme = 0;
rv = lookAndFeel->GetMetric(nsILookAndFeel::eMetric_UseAccessibilityTheme,
useAccessibilityTheme);
if (NS_SUCCEEDED(rv) && useAccessibilityTheme) {
/* Set the skin to classic and remove pref observers */
if (!mSelectedSkin.EqualsLiteral("classic/1.0")) {
mSelectedSkin.AssignLiteral("classic/1.0");
RefreshSkins();
}
nsCOMPtr<nsIPrefBranch2> prefs (do_GetService(NS_PREFSERVICE_CONTRACTID));
if (prefs) {
prefs->RemoveObserver(SELECTED_SKIN_PREF, this);
}
}
}
return NS_OK;
}
nsresult
nsChromeRegistry::GetProviderAndPath(nsIURL* aChromeURL,
nsACString& aProvider, nsACString& aPath)
{
nsresult rv;
#ifdef DEBUG
PRBool isChrome;
aChromeURL->SchemeIs("chrome", &isChrome);
NS_ASSERTION(isChrome, "Non-chrome URI?");
#endif
nsCAutoString path;
rv = aChromeURL->GetPath(path);
NS_ENSURE_SUCCESS(rv, rv);
if (path.Length() < 3) {
LogMessage("Invalid chrome URI: %s", path.get());
return NS_ERROR_FAILURE;
}
path.SetLength(nsUnescapeCount(path.BeginWriting()));
NS_ASSERTION(path.First() == '/', "Path should always begin with a slash!");
PRInt32 slash = path.FindChar('/', 1);
if (slash == 1) {
LogMessage("Invalid chrome URI: %s", path.get());
return NS_ERROR_FAILURE;
}
if (slash == -1) {
aPath.Truncate();
}
else {
if (slash == (PRInt32) path.Length() - 1)
aPath.Truncate();
else
aPath.Assign(path.get() + slash + 1, path.Length() - slash - 1);
--slash;
}
aProvider.Assign(path.get() + 1, slash);
return NS_OK;
}
nsresult
nsChromeRegistry::Canonify(nsIURL* aChromeURL)
{
NS_NAMED_LITERAL_CSTRING(kSlash, "/");
nsresult rv;
nsCAutoString provider, path;
rv = GetProviderAndPath(aChromeURL, provider, path);
NS_ENSURE_SUCCESS(rv, rv);
if (path.IsEmpty()) {
nsCAutoString package;
rv = aChromeURL->GetHost(package);
NS_ENSURE_SUCCESS(rv, rv);
// we re-use the "path" local string to build a new URL path
path.Assign(kSlash + provider + kSlash + package);
if (provider.EqualsLiteral("content")) {
path.AppendLiteral(".xul");
}
else if (provider.EqualsLiteral("locale")) {
path.AppendLiteral(".dtd");
}
else if (provider.EqualsLiteral("skin")) {
path.AppendLiteral(".css");
}
else {
return NS_ERROR_INVALID_ARG;
}
aChromeURL->SetPath(path);
}
else {
// prevent directory traversals ("..")
// path is already unescaped once, but uris can get unescaped twice
const char* pos = path.BeginReading();
const char* end = path.EndReading();
while (pos < end) {
switch (*pos) {
case ':':
return NS_ERROR_DOM_BAD_URI;
case '.':
if (pos[1] == '.')
return NS_ERROR_DOM_BAD_URI;
break;
case '%':
// chrome: URIs with double-escapes are trying to trick us.
// watch for %2e, and %25 in case someone triple unescapes
if (pos[1] == '2' &&
( pos[2] == 'e' || pos[2] == 'E' ||
pos[2] == '5' ))
return NS_ERROR_DOM_BAD_URI;
break;
case '?':
case '#':
pos = end;
continue;
}
++pos;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsChromeRegistry::ConvertChromeURL(nsIURI* aChromeURI, nsIURI* *aResult)
{
nsresult rv;
NS_ASSERTION(aChromeURI, "null url!");
if (mOverrideTable.Get(aChromeURI, aResult))
return NS_OK;
nsCOMPtr<nsIURL> chromeURL (do_QueryInterface(aChromeURI));
NS_ENSURE_TRUE(chromeURL, NS_NOINTERFACE);
nsCAutoString package, provider, path;
rv = chromeURL->GetHostPort(package);
NS_ENSURE_SUCCESS(rv, rv);
rv = GetProviderAndPath(chromeURL, provider, path);
NS_ENSURE_SUCCESS(rv, rv);
PackageEntry* entry =
static_cast<PackageEntry*>(PL_DHashTableOperate(&mPackagesHash,
& (nsACString&) package,
PL_DHASH_LOOKUP));
if (PL_DHASH_ENTRY_IS_FREE(entry)) {
if (!mInitialized)
return NS_ERROR_NOT_INITIALIZED;
LogMessage("No chrome package registered for chrome://%s/%s/%s",
package.get(), provider.get(), path.get());
return NS_ERROR_FAILURE;
}
if (entry->flags & PackageEntry::PLATFORM_PACKAGE) {
#if defined(XP_WIN) || defined(XP_OS2)
path.Insert("win/", 0);
#elif defined(XP_MACOSX)
path.Insert("mac/", 0);
#else
path.Insert("unix/", 0);
#endif
}
nsIURI* baseURI = nsnull;
if (provider.EqualsLiteral("locale")) {
baseURI = entry->locales.GetBase(mSelectedLocale, nsProviderArray::LOCALE);
}
else if (provider.EqualsLiteral("skin")) {
baseURI = entry->skins.GetBase(mSelectedSkin, nsProviderArray::ANY);
}
else if (provider.EqualsLiteral("content")) {
baseURI = entry->baseURI;
}
if (!baseURI) {
LogMessage("No chrome package registered for chrome://%s/%s/%s",
package.get(), provider.get(), path.get());
return NS_ERROR_FAILURE;
}
return NS_NewURI(aResult, path, nsnull, baseURI);
}
nsresult
nsChromeRegistry::GetSelectedLocale(const nsACString& aPackage, nsACString& aLocale)
{
PackageEntry* entry =
static_cast<PackageEntry*>(PL_DHashTableOperate(&mPackagesHash,
& aPackage,
PL_DHASH_LOOKUP));
if (PL_DHASH_ENTRY_IS_FREE(entry))
return NS_ERROR_FAILURE;
aLocale = entry->locales.GetSelected(mSelectedLocale, nsProviderArray::LOCALE);
if (aLocale.IsEmpty())
return NS_ERROR_FAILURE;
return NS_OK;
}
NS_IMETHODIMP
nsChromeRegistry::IsLocaleRTL(const nsACString& package, PRBool *aResult)
{
*aResult = PR_FALSE;
nsCAutoString locale;
GetSelectedLocale(package, locale);
if (locale.Length() < 2)
return NS_OK;
// first check the intl.uidirection.<locale> preference, and if that is not
// set, check the same preference but with just the first two characters of
// the locale. If that isn't set, default to left-to-right.
nsCAutoString prefString = NS_LITERAL_CSTRING("intl.uidirection.") + locale;
nsCOMPtr<nsIPrefBranch> prefBranch (do_GetService(NS_PREFSERVICE_CONTRACTID));
if (!prefBranch)
return NS_OK;
nsXPIDLCString dir;
prefBranch->GetCharPref(prefString.get(), getter_Copies(dir));
if (dir.IsEmpty()) {
PRInt32 hyphen = prefString.FindChar('-');
if (hyphen >= 1) {
nsCAutoString shortPref(Substring(prefString, 0, hyphen));
prefBranch->GetCharPref(shortPref.get(), getter_Copies(dir));
}
}
*aResult = dir.EqualsLiteral("rtl");
return NS_OK;
}
NS_IMETHODIMP
nsChromeRegistry::GetLocalesForPackage(const nsACString& aPackage,
nsIUTF8StringEnumerator* *aResult)
{
nsTArray<nsCString> *a = new nsTArray<nsCString>;
if (!a)
return NS_ERROR_OUT_OF_MEMORY;
PackageEntry* entry =
static_cast<PackageEntry*>(PL_DHashTableOperate(&mPackagesHash,
& aPackage,
PL_DHASH_LOOKUP));
if (PL_DHASH_ENTRY_IS_BUSY(entry)) {
entry->locales.EnumerateToArray(a);
}
nsresult rv = NS_NewAdoptingUTF8StringEnumerator(aResult, a);
if (NS_FAILED(rv))
delete a;
return rv;
}
#ifdef MOZ_XUL
NS_IMETHODIMP
nsChromeRegistry::GetStyleOverlays(nsIURI *aChromeURL,
nsISimpleEnumerator **aResult)
{
const nsCOMArray<nsIURI>* parray = mStyleHash.GetArray(aChromeURL);
if (!parray)
return NS_NewEmptyEnumerator(aResult);
return NS_NewArrayEnumerator(aResult, *parray);
}
NS_IMETHODIMP
nsChromeRegistry::GetXULOverlays(nsIURI *aChromeURL, nsISimpleEnumerator **aResult)
{
const nsCOMArray<nsIURI>* parray = mOverlayHash.GetArray(aChromeURL);
if (!parray)
return NS_NewEmptyEnumerator(aResult);
return NS_NewArrayEnumerator(aResult, *parray);
}
#endif // MOZ_XUL
////////////////////////////////////////////////////////////////////////
// theme stuff
static void FlushSkinBindingsForWindow(nsIDOMWindowInternal* aWindow)
{
// Get the DOM document.
nsCOMPtr<nsIDOMDocument> domDocument;
aWindow->GetDocument(getter_AddRefs(domDocument));
if (!domDocument)
return;
nsCOMPtr<nsIDocument> document = do_QueryInterface(domDocument);
if (!document)
return;
// Annihilate all XBL bindings.
document->FlushSkinBindings();
}
// XXXbsmedberg: move this to nsIWindowMediator
NS_IMETHODIMP nsChromeRegistry::RefreshSkins()
{
nsCOMPtr<nsICSSLoader> cssLoader(do_CreateInstance(kCSSLoaderCID));
if (!cssLoader)
return NS_OK;
nsCOMPtr<nsIWindowMediator> windowMediator
(do_GetService(NS_WINDOWMEDIATOR_CONTRACTID));
if (!windowMediator)
return NS_OK;
nsCOMPtr<nsISimpleEnumerator> windowEnumerator;
windowMediator->GetEnumerator(nsnull, getter_AddRefs(windowEnumerator));
PRBool more;
windowEnumerator->HasMoreElements(&more);
while (more) {
nsCOMPtr<nsISupports> protoWindow;
windowEnumerator->GetNext(getter_AddRefs(protoWindow));
if (protoWindow) {
nsCOMPtr<nsIDOMWindowInternal> domWindow = do_QueryInterface(protoWindow);
if (domWindow)
FlushSkinBindingsForWindow(domWindow);
}
windowEnumerator->HasMoreElements(&more);
}
FlushSkinCaches();
windowMediator->GetEnumerator(nsnull, getter_AddRefs(windowEnumerator));
windowEnumerator->HasMoreElements(&more);
while (more) {
nsCOMPtr<nsISupports> protoWindow;
windowEnumerator->GetNext(getter_AddRefs(protoWindow));
if (protoWindow) {
nsCOMPtr<nsIDOMWindowInternal> domWindow = do_QueryInterface(protoWindow);
if (domWindow)
RefreshWindow(domWindow, cssLoader);
}
windowEnumerator->HasMoreElements(&more);
}
return NS_OK;
}
void
nsChromeRegistry::FlushSkinCaches()
{
nsCOMPtr<nsIObserverService> obsSvc =
do_GetService("@mozilla.org/observer-service;1");
NS_ASSERTION(obsSvc, "Couldn't get observer service.");
obsSvc->NotifyObservers(static_cast<nsIChromeRegistry*>(this),
NS_CHROME_FLUSH_SKINS_TOPIC, nsnull);
}
static PRBool IsChromeURI(nsIURI* aURI)
{
PRBool isChrome=PR_FALSE;
if (NS_SUCCEEDED(aURI->SchemeIs("chrome", &isChrome)) && isChrome)
return PR_TRUE;
return PR_FALSE;
}
// XXXbsmedberg: move this to windowmediator
nsresult nsChromeRegistry::RefreshWindow(nsIDOMWindowInternal* aWindow,
nsICSSLoader* aCSSLoader)
{
// Deal with our subframes first.
nsCOMPtr<nsIDOMWindowCollection> frames;
aWindow->GetFrames(getter_AddRefs(frames));
PRUint32 length;
frames->GetLength(&length);
PRUint32 j;
for (j = 0; j < length; j++) {
nsCOMPtr<nsIDOMWindow> childWin;
frames->Item(j, getter_AddRefs(childWin));
nsCOMPtr<nsIDOMWindowInternal> childInt(do_QueryInterface(childWin));
RefreshWindow(childInt, aCSSLoader);
}
nsresult rv;
// Get the DOM document.
nsCOMPtr<nsIDOMDocument> domDocument;
aWindow->GetDocument(getter_AddRefs(domDocument));
if (!domDocument)
return NS_OK;
nsCOMPtr<nsIDocument> document = do_QueryInterface(domDocument);
if (!document)
return NS_OK;
// Deal with the agent sheets first. Have to do all the style sets by hand.
nsCOMPtr<nsIPresShell> shell = document->GetPrimaryShell();
if (shell) {
// Reload only the chrome URL agent style sheets.
nsCOMArray<nsIStyleSheet> agentSheets;
rv = shell->GetAgentStyleSheets(agentSheets);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMArray<nsIStyleSheet> newAgentSheets;
for (PRInt32 l = 0; l < agentSheets.Count(); ++l) {
nsIStyleSheet *sheet = agentSheets[l];
nsCOMPtr<nsIURI> uri;
rv = sheet->GetSheetURI(getter_AddRefs(uri));
if (NS_FAILED(rv)) return rv;
if (IsChromeURI(uri)) {
// Reload the sheet.
nsCOMPtr<nsICSSStyleSheet> newSheet;
rv = aCSSLoader->LoadSheetSync(uri, PR_TRUE, PR_TRUE,
getter_AddRefs(newSheet));
if (NS_FAILED(rv)) return rv;
if (newSheet) {
rv = newAgentSheets.AppendObject(newSheet) ? NS_OK : NS_ERROR_FAILURE;
if (NS_FAILED(rv)) return rv;
}
}
else { // Just use the same sheet.
rv = newAgentSheets.AppendObject(sheet) ? NS_OK : NS_ERROR_FAILURE;
if (NS_FAILED(rv)) return rv;
}
}
rv = shell->SetAgentStyleSheets(newAgentSheets);
NS_ENSURE_SUCCESS(rv, rv);
}
// Build an array of nsIURIs of style sheets we need to load.
nsCOMArray<nsIStyleSheet> oldSheets;
nsCOMArray<nsIStyleSheet> newSheets;
PRInt32 count = document->GetNumberOfStyleSheets();
// Iterate over the style sheets.
PRInt32 i;
for (i = 0; i < count; i++) {
// Get the style sheet
nsIStyleSheet *styleSheet = document->GetStyleSheetAt(i);
if (!oldSheets.AppendObject(styleSheet)) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
// Iterate over our old sheets and kick off a sync load of the new
// sheet if and only if it's a chrome URL.
for (i = 0; i < count; i++) {
nsCOMPtr<nsICSSStyleSheet> sheet = do_QueryInterface(oldSheets[i]);
nsIURI* uri = sheet ? sheet->GetOriginalURI() : nsnull;
if (uri && IsChromeURI(uri)) {
// Reload the sheet.
nsCOMPtr<nsICSSStyleSheet> newSheet;
// XXX what about chrome sheets that have a title or are disabled? This
// only works by sheer dumb luck.
// XXXbz this should really use the document's CSSLoader!
aCSSLoader->LoadSheetSync(uri, getter_AddRefs(newSheet));
// Even if it's null, we put in in there.
newSheets.AppendObject(newSheet);
}
else {
// Just use the same sheet.
newSheets.AppendObject(sheet);
}
}
// Now notify the document that multiple sheets have been added and removed.
document->UpdateStyleSheets(oldSheets, newSheets);
return NS_OK;
}
void
nsChromeRegistry::FlushAllCaches()
{
nsCOMPtr<nsIObserverService> obsSvc =
do_GetService("@mozilla.org/observer-service;1");
NS_ASSERTION(obsSvc, "Couldn't get observer service.");
obsSvc->NotifyObservers((nsIChromeRegistry*) this,
NS_CHROME_FLUSH_TOPIC, nsnull);
}
// xxxbsmedberg Move me to nsIWindowMediator
NS_IMETHODIMP
nsChromeRegistry::ReloadChrome()
{
FlushAllCaches();
// Do a reload of all top level windows.
nsresult rv = NS_OK;
// Get the window mediator
nsCOMPtr<nsIWindowMediator> windowMediator
(do_GetService(NS_WINDOWMEDIATOR_CONTRACTID));
if (windowMediator) {
nsCOMPtr<nsISimpleEnumerator> windowEnumerator;
rv = windowMediator->GetEnumerator(nsnull, getter_AddRefs(windowEnumerator));
if (NS_SUCCEEDED(rv)) {
// Get each dom window
PRBool more;
rv = windowEnumerator->HasMoreElements(&more);
if (NS_FAILED(rv)) return rv;
while (more) {
nsCOMPtr<nsISupports> protoWindow;
rv = windowEnumerator->GetNext(getter_AddRefs(protoWindow));
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIDOMWindowInternal> domWindow =
do_QueryInterface(protoWindow);
if (domWindow) {
nsCOMPtr<nsIDOMLocation> location;
domWindow->GetLocation(getter_AddRefs(location));
if (location) {
rv = location->Reload(PR_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, PRBool *aResult)
{
nsresult rv;
*aResult = PR_FALSE;
#ifdef DEBUG
PRBool 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);
nsCAutoString provider, file;
rv = GetProviderAndPath(url, provider, file);
NS_ENSURE_SUCCESS(rv, rv);
if (!provider.EqualsLiteral("skin"))
*aResult = PR_TRUE;
return NS_OK;
}
NS_IMETHODIMP
nsChromeRegistry::AllowContentToAccess(nsIURI *aURI, PRBool *aResult)
{
nsresult rv;
*aResult = PR_FALSE;
#ifdef DEBUG
PRBool 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;
}
nsCAutoString package;
rv = url->GetHostPort(package);
NS_ENSURE_SUCCESS(rv, rv);
PackageEntry *entry =
static_cast<PackageEntry*>(PL_DHashTableOperate(&mPackagesHash,
& (nsACString&) package,
PL_DHASH_LOOKUP));
if (PL_DHASH_ENTRY_IS_BUSY(entry)) {
*aResult = !!(entry->flags & PackageEntry::CONTENT_ACCESSIBLE);
}
return NS_OK;
}
static PLDHashOperator
RemoveAll(PLDHashTable *table, PLDHashEntryHdr *entry, PRUint32 number, void *arg)
{
return (PLDHashOperator) (PL_DHASH_NEXT | PL_DHASH_REMOVE);
}
NS_IMETHODIMP
nsChromeRegistry::CheckForNewChrome()
{
nsresult rv;
PL_DHashTableEnumerate(&mPackagesHash, RemoveAll, nsnull);
mOverlayHash.Clear();
mStyleHash.Clear();
mOverrideTable.Clear();
nsCOMPtr<nsIURI> manifestURI;
rv = NS_NewURI(getter_AddRefs(manifestURI),
NS_LITERAL_CSTRING("resource:///chrome/app-chrome.manifest"));
nsCOMPtr<nsIFileURL> manifestFileURL (do_QueryInterface(manifestURI));
NS_ASSERTION(manifestFileURL, "Not a nsIFileURL!");
NS_ENSURE_TRUE(manifestFileURL, NS_ERROR_UNEXPECTED);
nsCOMPtr<nsIFile> manifest;
manifestFileURL->GetFile(getter_AddRefs(manifest));
NS_ENSURE_TRUE(manifest, NS_ERROR_FAILURE);
PRBool exists;
rv = manifest->Exists(&exists);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIProperties> dirSvc (do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID));
NS_ENSURE_TRUE(dirSvc, NS_ERROR_FAILURE);
// check the extra chrome directories
nsCOMPtr<nsISimpleEnumerator> chromeML;
rv = dirSvc->Get(NS_CHROME_MANIFESTS_FILE_LIST, NS_GET_IID(nsISimpleEnumerator),
getter_AddRefs(chromeML));
if (NS_FAILED(rv)) {
// ok, then simply load all .manifest files in the app chrome dir.
nsCOMPtr<nsIFile> chromeDir;
rv = dirSvc->Get(NS_APP_CHROME_DIR, NS_GET_IID(nsIFile),
getter_AddRefs(chromeDir));
if (NS_FAILED(rv))
return rv;
rv = NS_NewSingletonEnumerator(getter_AddRefs(chromeML), chromeDir);
if (NS_FAILED(rv))
return rv;
}
nsCOMPtr<nsISupports> next;
while (NS_SUCCEEDED(chromeML->HasMoreElements(&exists)) && exists) {
chromeML->GetNext(getter_AddRefs(next));
nsCOMPtr<nsILocalFile> lmanifest = do_QueryInterface(next);
if (!lmanifest) {
NS_ERROR("Directory enumerator returned a non-nsILocalFile");
continue;
}
PRBool isDir;
if (NS_SUCCEEDED(lmanifest->IsDirectory(&isDir)) && isDir) {
nsCOMPtr<nsISimpleEnumerator> entries;
rv = lmanifest->GetDirectoryEntries(getter_AddRefs(entries));
if (NS_FAILED(rv))
continue;
while (NS_SUCCEEDED(entries->HasMoreElements(&exists)) && exists) {
entries->GetNext(getter_AddRefs(next));
lmanifest = do_QueryInterface(next);
if (lmanifest) {
nsCAutoString leafName;
lmanifest->GetNativeLeafName(leafName);
if (StringEndsWith(leafName, NS_LITERAL_CSTRING(".manifest"))) {
rv = ProcessManifest(lmanifest, PR_FALSE);
if (NS_FAILED(rv)) {
nsCAutoString path;
lmanifest->GetNativePath(path);
LogMessage("Failed to process chrome manifest '%s'.",
path.get());
}
}
}
}
}
else {
rv = ProcessManifest(lmanifest, PR_FALSE);
if (NS_FAILED(rv)) {
nsCAutoString path;
lmanifest->GetNativePath(path);
LogMessage("Failed to process chrome manifest: '%s'.",
path.get());
}
}
}
rv = dirSvc->Get(NS_SKIN_MANIFESTS_FILE_LIST, NS_GET_IID(nsISimpleEnumerator),
getter_AddRefs(chromeML));
if (NS_FAILED(rv))
return NS_OK;
while (NS_SUCCEEDED(chromeML->HasMoreElements(&exists)) && exists) {
chromeML->GetNext(getter_AddRefs(next));
nsCOMPtr<nsILocalFile> lmanifest = do_QueryInterface(next);
if (!lmanifest) {
NS_ERROR("Directory enumerator returned a non-nsILocalFile");
continue;
}
rv = ProcessManifest(lmanifest, PR_TRUE);
if (NS_FAILED(rv)) {
nsCAutoString path;
lmanifest->GetNativePath(path);
LogMessage("Failed to process chrome manifest: '%s'.",
path.get());
}
}
return NS_OK;
}
NS_IMETHODIMP_(PRBool)
nsChromeRegistry::WrappersEnabled(nsIURI *aURI)
{
nsCOMPtr<nsIURL> chromeURL (do_QueryInterface(aURI));
if (!chromeURL)
return PR_FALSE;
PRBool isChrome = PR_FALSE;
nsresult rv = chromeURL->SchemeIs("chrome", &isChrome);
if (NS_FAILED(rv) || !isChrome)
return PR_FALSE;
nsCAutoString package;
rv = chromeURL->GetHostPort(package);
if (NS_FAILED(rv))
return PR_FALSE;
PackageEntry* entry =
static_cast<PackageEntry*>(PL_DHashTableOperate(&mPackagesHash,
& (nsACString&) package,
PL_DHASH_LOOKUP));
return PL_DHASH_ENTRY_IS_LIVE(entry) &&
entry->flags & PackageEntry::XPCNATIVEWRAPPERS;
}
nsresult
nsChromeRegistry::SelectLocaleFromPref(nsIPrefBranch* prefs)
{
nsresult rv;
PRBool matchOSLocale = PR_FALSE;
rv = prefs->GetBoolPref(MATCH_OS_LOCALE_PREF, &matchOSLocale);
if (NS_SUCCEEDED(rv) && matchOSLocale) {
// compute lang and region code only when needed!
nsCAutoString uiLocale;
rv = getUILangCountry(uiLocale);
if (NS_SUCCEEDED(rv))
mSelectedLocale = uiLocale;
}
else {
nsXPIDLCString provider;
rv = prefs->GetCharPref(SELECTED_LOCALE_PREF, getter_Copies(provider));
if (NS_SUCCEEDED(rv)) {
mSelectedLocale = provider;
}
}
return rv;
}
NS_IMETHODIMP nsChromeRegistry::Observe(nsISupports *aSubject, const char *aTopic, const PRUnichar *someData)
{
nsresult rv = NS_OK;
if (!strcmp(NS_PREFBRANCH_PREFCHANGE_TOPIC_ID, aTopic)) {
nsCOMPtr<nsIPrefBranch> prefs (do_QueryInterface(aSubject));
NS_ASSERTION(prefs, "Bad observer call!");
NS_ConvertUTF16toUTF8 pref(someData);
if (pref.EqualsLiteral(MATCH_OS_LOCALE_PREF) ||
pref.EqualsLiteral(SELECTED_LOCALE_PREF)) {
rv = SelectLocaleFromPref(prefs);
if (NS_SUCCEEDED(rv) && mProfileLoaded)
FlushAllCaches();
}
else if (pref.EqualsLiteral(SELECTED_SKIN_PREF)) {
nsXPIDLCString provider;
rv = prefs->GetCharPref(pref.get(), getter_Copies(provider));
if (NS_FAILED(rv)) {
NS_ERROR("Couldn't get new locale pref!");
return rv;
}
mSelectedSkin = provider;
RefreshSkins();
} else {
NS_ERROR("Unexpected pref!");
}
}
else if (!strcmp("command-line-startup", aTopic)) {
nsCOMPtr<nsICommandLine> cmdLine (do_QueryInterface(aSubject));
if (cmdLine) {
nsAutoString uiLocale;
rv = cmdLine->HandleFlagWithParam(NS_LITERAL_STRING(UILOCALE_CMD_LINE_ARG),
PR_FALSE, uiLocale);
if (NS_SUCCEEDED(rv) && !uiLocale.IsEmpty()) {
CopyUTF16toUTF8(uiLocale, mSelectedLocale);
nsCOMPtr<nsIPrefBranch2> prefs (do_GetService(NS_PREFSERVICE_CONTRACTID));
if (prefs) {
prefs->RemoveObserver(SELECTED_LOCALE_PREF, this);
}
}
}
}
else if (!strcmp("profile-initial-state", aTopic)) {
mProfileLoaded = PR_TRUE;
}
else {
NS_ERROR("Unexpected observer topic!");
}
return rv;
}
nsresult
nsChromeRegistry::ProcessManifest(nsILocalFile* aManifest, PRBool aSkinOnly)
{
nsresult rv;
PRFileDesc* fd;
rv = aManifest->OpenNSPRFileDesc(PR_RDONLY, 0, &fd);
NS_ENSURE_SUCCESS(rv, rv);
PRInt32 n, size;
char *buf;
size = PR_Available(fd);
if (size == -1) {
rv = NS_ERROR_UNEXPECTED;
goto mend;
}
buf = (char *) malloc(size + 1);
if (!buf) {
rv = NS_ERROR_OUT_OF_MEMORY;
goto mend;
}
n = PR_Read(fd, buf, size);
if (n > 0) {
buf[size] = '\0';
rv = ProcessManifestBuffer(buf, size, aManifest, aSkinOnly);
}
free(buf);
mend:
PR_Close(fd);
return rv;
}
static const char kWhitespace[] = "\t ";
static const char kNewlines[] = "\r\n";
/**
* Check for a modifier flag of the following forms:
* "flag" (same as "true")
* "flag=yes|true|1"
* "flag="no|false|0"
* @param aFlag The flag to compare.
* @param aData The tokenized data to check; this is lowercased
* before being passed in.
* @param aResult If the flag is found, the value is assigned here.
* @return Whether the flag was handled.
*/
static PRBool
CheckFlag(const nsSubstring& aFlag, const nsSubstring& aData, PRBool& aResult)
{
if (!StringBeginsWith(aData, aFlag))
return PR_FALSE;
if (aFlag.Length() == aData.Length()) {
// the data is simply "flag", which is the same as "flag=yes"
aResult = PR_TRUE;
return PR_TRUE;
}
if (aData.CharAt(aFlag.Length()) != '=') {
// the data is "flag2=", which is not anything we care about
return PR_FALSE;
}
if (aData.Length() == aFlag.Length() + 1) {
aResult = PR_FALSE;
return PR_TRUE;
}
switch (aData.CharAt(aFlag.Length() + 1)) {
case '1':
case 't': //true
case 'y': //yes
aResult = PR_TRUE;
return PR_TRUE;
case '0':
case 'f': //false
case 'n': //no
aResult = PR_FALSE;
return PR_TRUE;
}
return PR_FALSE;
}
enum TriState {
eUnspecified,
eBad,
eOK
};
/**
* Check for a modifier flag of the following form:
* "flag=string"
* "flag!=string"
* @param aFlag The flag to compare.
* @param aData The tokenized data to check; this is lowercased
* before being passed in.
* @param aValue The value that is expected.
* @param aResult If this is "ok" when passed in, this is left alone.
* Otherwise if the flag is found it is set to eBad or eOK.
* @return Whether the flag was handled.
*/
static PRBool
CheckStringFlag(const nsSubstring& aFlag, const nsSubstring& aData,
const nsSubstring& aValue, TriState& aResult)
{
if (aData.Length() < aFlag.Length() + 1)
return PR_FALSE;
if (!StringBeginsWith(aData, aFlag))
return PR_FALSE;
PRBool comparison = PR_TRUE;
if (aData[aFlag.Length()] != '=') {
if (aData[aFlag.Length()] == '!' &&
aData.Length() >= aFlag.Length() + 2 &&
aData[aFlag.Length() + 1] == '=')
comparison = PR_FALSE;
else
return PR_FALSE;
}
if (aResult != eOK) {
nsDependentSubstring testdata = Substring(aData, aFlag.Length() + (comparison ? 1 : 2));
if (testdata.Equals(aValue))
aResult = comparison ? eOK : eBad;
else
aResult = comparison ? eBad : eOK;
}
return PR_TRUE;
}
/**
* Check for a modifier flag of the following form:
* "flag=version"
* "flag<=version"
* "flag<version"
* "flag>=version"
* "flag>version"
* @param aFlag The flag to compare.
* @param aData The tokenized data to check; this is lowercased
* before being passed in.
* @param aValue The value that is expected. If this is empty then no
* comparison will match.
* @param aChecker the version checker to use. If null, aResult will always
* be eBad.
* @param aResult If this is eOK when passed in, this is left alone.
* Otherwise if the flag is found it is set to eBad or eOK.
* @return Whether the flag was handled.
*/
#define COMPARE_EQ 1 << 0
#define COMPARE_LT 1 << 1
#define COMPARE_GT 1 << 2
static PRBool
CheckVersionFlag(const nsSubstring& aFlag, const nsSubstring& aData,
const nsSubstring& aValue, nsIVersionComparator* aChecker,
TriState& aResult)
{
if (aData.Length() < aFlag.Length() + 2)
return PR_FALSE;
if (!StringBeginsWith(aData, aFlag))
return PR_FALSE;
if (aValue.Length() == 0) {
if (aResult != eOK)
aResult = eBad;
return PR_TRUE;
}
PRUint32 comparison;
nsAutoString testdata;
switch (aData[aFlag.Length()]) {
case '=':
comparison = COMPARE_EQ;
testdata = Substring(aData, aFlag.Length() + 1);
break;
case '<':
if (aData[aFlag.Length() + 1] == '=') {
comparison = COMPARE_EQ | COMPARE_LT;
testdata = Substring(aData, aFlag.Length() + 2);
}
else {
comparison = COMPARE_LT;
testdata = Substring(aData, aFlag.Length() + 1);
}
break;
case '>':
if (aData[aFlag.Length() + 1] == '=') {
comparison = COMPARE_EQ | COMPARE_GT;
testdata = Substring(aData, aFlag.Length() + 2);
}
else {
comparison = COMPARE_GT;
testdata = Substring(aData, aFlag.Length() + 1);
}
break;
default:
return PR_FALSE;
}
if (testdata.Length() == 0)
return PR_FALSE;
if (aResult != eOK) {
if (!aChecker) {
aResult = eBad;
}
else {
PRInt32 c;
nsresult rv = aChecker->Compare(NS_ConvertUTF16toUTF8(aValue),
NS_ConvertUTF16toUTF8(testdata), &c);
if (NS_FAILED(rv)) {
aResult = eBad;
}
else {
if ((c == 0 && comparison & COMPARE_EQ) ||
(c < 0 && comparison & COMPARE_LT) ||
(c > 0 && comparison & COMPARE_GT))
aResult = eOK;
else
aResult = eBad;
}
}
}
return PR_TRUE;
}
static void
EnsureLowerCase(char *aBuf)
{
for (; *aBuf; ++aBuf) {
char ch = *aBuf;
if (ch >= 'A' && ch <= 'Z')
*aBuf = ch + 'a' - 'A';
}
}
nsresult
nsChromeRegistry::ProcessManifestBuffer(char *buf, PRInt32 length,
nsILocalFile* aManifest,
PRBool aSkinOnly)
{
nsresult rv;
NS_NAMED_LITERAL_STRING(kPlatform, "platform");
NS_NAMED_LITERAL_STRING(kXPCNativeWrappers, "xpcnativewrappers");
NS_NAMED_LITERAL_STRING(kContentAccessible, "contentaccessible");
NS_NAMED_LITERAL_STRING(kApplication, "application");
NS_NAMED_LITERAL_STRING(kAppVersion, "appversion");
NS_NAMED_LITERAL_STRING(kOs, "os");
NS_NAMED_LITERAL_STRING(kOsVersion, "osversion");
nsCOMPtr<nsIIOService> io (do_GetIOService());
if (!io) return NS_ERROR_FAILURE;
nsCOMPtr<nsIProtocolHandler> ph;
rv = io->GetProtocolHandler("resource", getter_AddRefs(ph));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIResProtocolHandler> rph (do_QueryInterface(ph));
if (!rph) return NS_ERROR_FAILURE;
nsCOMPtr<nsIURI> manifestURI;
rv = io->NewFileURI(aManifest, getter_AddRefs(manifestURI));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIXPConnect> xpc (do_GetService("@mozilla.org/js/xpc/XPConnect;1"));
nsCOMPtr<nsIVersionComparator> vc (do_GetService("@mozilla.org/xpcom/version-comparator;1"));
nsAutoString appID;
nsAutoString appVersion;
nsAutoString osTarget;
nsCOMPtr<nsIXULAppInfo> xapp (do_GetService(XULAPPINFO_SERVICE_CONTRACTID));
if (xapp) {
nsCAutoString s;
rv = xapp->GetID(s);
if (NS_SUCCEEDED(rv))
CopyUTF8toUTF16(s, appID);
rv = xapp->GetVersion(s);
if (NS_SUCCEEDED(rv))
CopyUTF8toUTF16(s, appVersion);
nsCOMPtr<nsIXULRuntime> xruntime (do_QueryInterface(xapp));
if (xruntime) {
rv = xruntime->GetOS(s);
if (NS_SUCCEEDED(rv)) {
CopyUTF8toUTF16(s, osTarget);
ToLowerCase(osTarget);
}
}
}
nsAutoString osVersion;
#if defined(XP_WIN)
OSVERSIONINFO info = { sizeof(OSVERSIONINFO) };
if (GetVersionEx(&info)) {
nsTextFormatter::ssprintf(osVersion, NS_LITERAL_STRING("%ld.%ld").get(),
info.dwMajorVersion,
info.dwMinorVersion);
}
#elif defined(XP_MACOSX)
SInt32 majorVersion, minorVersion;
if ((Gestalt(gestaltSystemVersionMajor, &majorVersion) == noErr) &&
(Gestalt(gestaltSystemVersionMinor, &minorVersion) == noErr)) {
nsTextFormatter::ssprintf(osVersion, NS_LITERAL_STRING("%ld.%ld").get(),
majorVersion,
minorVersion);
}
#elif defined(MOZ_WIDGET_GTK2)
nsTextFormatter::ssprintf(osVersion, NS_LITERAL_STRING("%ld.%ld").get(),
gtk_major_version,
gtk_minor_version);
#endif
char *token;
char *newline = buf;
PRUint32 line = 0;
// outer loop tokenizes by newline
while (nsnull != (token = nsCRT::strtok(newline, kNewlines, &newline))) {
++line;
if (*token == '#') // ignore lines that begin with # as comments
continue;
char *whitespace = token;
token = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
if (!token) continue;
if (!strcmp(token, "content")) {
if (aSkinOnly) {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Ignoring content registration in skin-only manifest.");
continue;
}
char *package = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
char *uri = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
if (!package || !uri) {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Malformed content registration.");
continue;
}
EnsureLowerCase(package);
// NOTE: We check for platform and xpcnativewrappers modifiers on
// content packages, but they are *applied* to content|skin|locale.
PRBool platform = PR_FALSE;
PRBool xpcNativeWrappers = PR_TRUE;
PRBool contentAccessible = PR_FALSE;
TriState stAppVersion = eUnspecified;
TriState stApp = eUnspecified;
TriState stOsVersion = eUnspecified;
TriState stOs = eUnspecified;
PRBool badFlag = PR_FALSE;
while (nsnull != (token = nsCRT::strtok(whitespace, kWhitespace, &whitespace)) &&
!badFlag) {
NS_ConvertASCIItoUTF16 wtoken(token);
ToLowerCase(wtoken);
if (CheckFlag(kPlatform, wtoken, platform) ||
CheckFlag(kXPCNativeWrappers, wtoken, xpcNativeWrappers) ||
CheckFlag(kContentAccessible, wtoken, contentAccessible) ||
CheckStringFlag(kApplication, wtoken, appID, stApp) ||
CheckStringFlag(kOs, wtoken, osTarget, stOs) ||
CheckVersionFlag(kOsVersion, wtoken, osVersion, vc, stOsVersion) ||
CheckVersionFlag(kAppVersion, wtoken, appVersion, vc, stAppVersion))
continue;
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Unrecognized chrome registration modifier '%s'.",
token);
badFlag = PR_TRUE;
}
if (badFlag || stApp == eBad || stAppVersion == eBad ||
stOs == eBad || stOsVersion == eBad)
continue;
nsCOMPtr<nsIURI> resolved;
rv = io->NewURI(nsDependentCString(uri), nsnull, manifestURI,
getter_AddRefs(resolved));
if (NS_FAILED(rv))
continue;
if (!CanLoadResource(resolved)) {
LogMessageWithContext(resolved, line, nsIScriptError::warningFlag,
"Warning: cannot register non-local URI '%s' as content.",
uri);
continue;
}
PackageEntry* entry =
static_cast<PackageEntry*>(PL_DHashTableOperate(&mPackagesHash,
& (const nsACString&) nsDependentCString(package),
PL_DHASH_ADD));
if (!entry)
return NS_ERROR_OUT_OF_MEMORY;
entry->baseURI = resolved;
if (platform)
entry->flags |= PackageEntry::PLATFORM_PACKAGE;
if (xpcNativeWrappers)
entry->flags |= PackageEntry::XPCNATIVEWRAPPERS;
if (contentAccessible)
entry->flags |= PackageEntry::CONTENT_ACCESSIBLE;
if (xpc) {
nsCAutoString urlp("chrome://");
urlp.Append(package);
urlp.Append('/');
rv = xpc->FlagSystemFilenamePrefix(urlp.get(), xpcNativeWrappers);
NS_ENSURE_SUCCESS(rv, rv);
}
}
else if (!strcmp(token, "locale")) {
if (aSkinOnly) {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Ignoring locale registration in skin-only manifest.");
continue;
}
char *package = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
char *provider = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
char *uri = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
if (!package || !provider || !uri) {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Malformed locale registration.");
continue;
}
EnsureLowerCase(package);
TriState stAppVersion = eUnspecified;
TriState stApp = eUnspecified;
TriState stOs = eUnspecified;
TriState stOsVersion = eUnspecified;
PRBool badFlag = PR_FALSE;
while (nsnull != (token = nsCRT::strtok(whitespace, kWhitespace, &whitespace)) &&
!badFlag) {
NS_ConvertASCIItoUTF16 wtoken(token);
ToLowerCase(wtoken);
if (CheckStringFlag(kApplication, wtoken, appID, stApp) ||
CheckStringFlag(kOs, wtoken, osTarget, stOs) ||
CheckVersionFlag(kOsVersion, wtoken, osVersion, vc, stOsVersion) ||
CheckVersionFlag(kAppVersion, wtoken, appVersion, vc, stAppVersion))
continue;
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Unrecognized chrome registration modifier '%s'.",
token);
badFlag = PR_TRUE;
}
if (badFlag || stApp == eBad || stAppVersion == eBad ||
stOs == eBad || stOsVersion == eBad)
continue;
nsCOMPtr<nsIURI> resolved;
rv = io->NewURI(nsDependentCString(uri), nsnull, manifestURI,
getter_AddRefs(resolved));
if (NS_FAILED(rv))
continue;
if (!CanLoadResource(resolved)) {
LogMessageWithContext(resolved, line, nsIScriptError::warningFlag,
"Warning: cannot register non-local URI '%s' as a locale.",
uri);
continue;
}
PackageEntry* entry =
static_cast<PackageEntry*>(PL_DHashTableOperate(&mPackagesHash,
& (const nsACString&) nsDependentCString(package),
PL_DHASH_ADD));
if (!entry)
return NS_ERROR_OUT_OF_MEMORY;
entry->locales.SetBase(nsDependentCString(provider), resolved);
}
else if (!strcmp(token, "skin")) {
char *package = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
char *provider = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
char *uri = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
if (!package || !provider || !uri) {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Malformed skin registration.");
continue;
}
EnsureLowerCase(package);
TriState stAppVersion = eUnspecified;
TriState stApp = eUnspecified;
TriState stOs = eUnspecified;
TriState stOsVersion = eUnspecified;
PRBool badFlag = PR_FALSE;
while (nsnull != (token = nsCRT::strtok(whitespace, kWhitespace, &whitespace)) &&
!badFlag) {
NS_ConvertASCIItoUTF16 wtoken(token);
ToLowerCase(wtoken);
if (CheckStringFlag(kApplication, wtoken, appID, stApp) ||
CheckStringFlag(kOs, wtoken, osTarget, stOs) ||
CheckVersionFlag(kOsVersion, wtoken, osVersion, vc, stOsVersion) ||
CheckVersionFlag(kAppVersion, wtoken, appVersion, vc, stAppVersion))
continue;
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Unrecognized chrome registration modifier '%s'.",
token);
badFlag = PR_TRUE;
}
if (badFlag || stApp == eBad || stAppVersion == eBad ||
stOs == eBad || stOsVersion == eBad)
continue;
nsCOMPtr<nsIURI> resolved;
rv = io->NewURI(nsDependentCString(uri), nsnull, manifestURI,
getter_AddRefs(resolved));
if (NS_FAILED(rv))
continue;
if (!CanLoadResource(resolved)) {
LogMessageWithContext(resolved, line, nsIScriptError::warningFlag,
"Warning: cannot register non-local URI '%s' as a skin.",
uri);
continue;
}
PackageEntry* entry =
static_cast<PackageEntry*>(PL_DHashTableOperate(&mPackagesHash,
& (const nsACString&) nsDependentCString(package),
PL_DHASH_ADD));
if (!entry)
return NS_ERROR_OUT_OF_MEMORY;
entry->skins.SetBase(nsDependentCString(provider), resolved);
}
else if (!strcmp(token, "overlay")) {
if (aSkinOnly) {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Ignoring overlay registration in skin-only manifest.");
continue;
}
char *base = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
char *overlay = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
if (!base || !overlay) {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: malformed chrome overlay instruction.");
continue;
}
TriState stAppVersion = eUnspecified;
TriState stApp = eUnspecified;
TriState stOs = eUnspecified;
TriState stOsVersion = eUnspecified;
PRBool badFlag = PR_FALSE;
while (nsnull != (token = nsCRT::strtok(whitespace, kWhitespace, &whitespace)) &&
!badFlag) {
NS_ConvertASCIItoUTF16 wtoken(token);
ToLowerCase(wtoken);
if (CheckStringFlag(kApplication, wtoken, appID, stApp) ||
CheckStringFlag(kOs, wtoken, osTarget, stOs) ||
CheckVersionFlag(kOsVersion, wtoken, osVersion, vc, stOsVersion) ||
CheckVersionFlag(kAppVersion, wtoken, appVersion, vc, stAppVersion))
continue;
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Unrecognized chrome registration modifier '%s'.",
token);
badFlag = PR_TRUE;
}
if (badFlag || stApp == eBad || stAppVersion == eBad ||
stOs == eBad || stOsVersion == eBad)
continue;
nsCOMPtr<nsIURI> baseuri, overlayuri;
rv = io->NewURI(nsDependentCString(base), nsnull, nsnull,
getter_AddRefs(baseuri));
rv |= io->NewURI(nsDependentCString(overlay), nsnull, nsnull,
getter_AddRefs(overlayuri));
if (NS_FAILED(rv)) {
NS_WARNING("Could not make URIs for overlay directive. Ignoring.");
continue;
}
if (!CanLoadResource(overlayuri)) {
LogMessageWithContext(overlayuri, line, nsIScriptError::warningFlag,
"Warning: cannot register non-local URI '%s' as an overlay.",
overlay);
continue;
}
mOverlayHash.Add(baseuri, overlayuri);
}
else if (!strcmp(token, "style")) {
char *base = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
char *overlay = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
if (!base || !overlay) {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: malformed chrome style instruction.");
continue;
}
TriState stAppVersion = eUnspecified;
TriState stApp = eUnspecified;
TriState stOs = eUnspecified;
TriState stOsVersion = eUnspecified;
PRBool badFlag = PR_FALSE;
while (nsnull != (token = nsCRT::strtok(whitespace, kWhitespace, &whitespace)) &&
!badFlag) {
NS_ConvertASCIItoUTF16 wtoken(token);
ToLowerCase(wtoken);
if (CheckStringFlag(kApplication, wtoken, appID, stApp) ||
CheckStringFlag(kOs, wtoken, osTarget, stOs) ||
CheckVersionFlag(kOsVersion, wtoken, osVersion, vc, stOsVersion) ||
CheckVersionFlag(kAppVersion, wtoken, appVersion, vc, stAppVersion))
continue;
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Unrecognized chrome registration modifier '%s'.",
token);
badFlag = PR_TRUE;
}
if (badFlag || stApp == eBad || stAppVersion == eBad ||
stOs == eBad || stOsVersion == eBad)
continue;
nsCOMPtr<nsIURI> baseuri, overlayuri;
rv = io->NewURI(nsDependentCString(base), nsnull, nsnull,
getter_AddRefs(baseuri));
rv |= io->NewURI(nsDependentCString(overlay), nsnull, nsnull,
getter_AddRefs(overlayuri));
if (NS_FAILED(rv))
continue;
if (!CanLoadResource(overlayuri)) {
LogMessageWithContext(overlayuri, line, nsIScriptError::warningFlag,
"Warning: cannot register non-local URI '%s' as a style overlay.",
overlay);
continue;
}
mStyleHash.Add(baseuri, overlayuri);
}
else if (!strcmp(token, "override")) {
if (aSkinOnly) {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Ignoring override registration in skin-only manifest.");
continue;
}
char *chrome = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
char *resolved = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
if (!chrome || !resolved) {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: malformed chrome override instruction.");
continue;
}
TriState stAppVersion = eUnspecified;
TriState stApp = eUnspecified;
TriState stOs = eUnspecified;
TriState stOsVersion = eUnspecified;
PRBool badFlag = PR_FALSE;
while (nsnull != (token = nsCRT::strtok(whitespace, kWhitespace, &whitespace)) &&
!badFlag) {
NS_ConvertASCIItoUTF16 wtoken(token);
ToLowerCase(wtoken);
if (CheckStringFlag(kApplication, wtoken, appID, stApp) ||
CheckStringFlag(kOs, wtoken, osTarget, stOs) ||
CheckVersionFlag(kOsVersion, wtoken, osVersion, vc, stOsVersion) ||
CheckVersionFlag(kAppVersion, wtoken, appVersion, vc, stAppVersion))
continue;
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Unrecognized chrome registration modifier '%s'.",
token);
badFlag = PR_TRUE;
}
if (badFlag || stApp == eBad || stAppVersion == eBad ||
stOs == eBad || stOsVersion == eBad)
continue;
nsCOMPtr<nsIURI> chromeuri, resolveduri;
rv = io->NewURI(nsDependentCString(chrome), nsnull, nsnull,
getter_AddRefs(chromeuri));
rv |= io->NewURI(nsDependentCString(resolved), nsnull, manifestURI,
getter_AddRefs(resolveduri));
if (NS_FAILED(rv))
continue;
if (!CanLoadResource(resolveduri)) {
LogMessageWithContext(resolveduri, line, nsIScriptError::warningFlag,
"Warning: cannot register non-local URI '%s' as an override.",
resolved);
continue;
}
mOverrideTable.Put(chromeuri, resolveduri);
}
else if (!strcmp(token, "resource")) {
if (aSkinOnly) {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Ignoring resource registration in skin-only manifest.");
continue;
}
char *package = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
char *uri = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
if (!package || !uri) {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Malformed resource registration.");
continue;
}
EnsureLowerCase(package);
TriState stAppVersion = eUnspecified;
TriState stApp = eUnspecified;
TriState stOsVersion = eUnspecified;
TriState stOs = eUnspecified;
PRBool badFlag = PR_FALSE;
while (nsnull != (token = nsCRT::strtok(whitespace, kWhitespace, &whitespace)) &&
!badFlag) {
NS_ConvertASCIItoUTF16 wtoken(token);
ToLowerCase(wtoken);
if (CheckStringFlag(kApplication, wtoken, appID, stApp) ||
CheckStringFlag(kOs, wtoken, osTarget, stOs) ||
CheckVersionFlag(kOsVersion, wtoken, osVersion, vc, stOsVersion) ||
CheckVersionFlag(kAppVersion, wtoken, appVersion, vc, stAppVersion))
continue;
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Unrecognized chrome registration modifier '%s'.",
token);
badFlag = PR_TRUE;
}
if (badFlag || stApp == eBad || stAppVersion == eBad ||
stOs == eBad || stOsVersion == eBad)
continue;
nsDependentCString host(package);
PRBool exists;
rv = rph->HasSubstitution(host, &exists);
NS_ENSURE_SUCCESS(rv, rv);
if (exists) {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Duplicate resource declaration for '%s' ignored.",
package);
continue;
}
nsCOMPtr<nsIURI> resolved;
rv = io->NewURI(nsDependentCString(uri), nsnull, manifestURI,
getter_AddRefs(resolved));
if (NS_FAILED(rv))
continue;
if (!CanLoadResource(resolved)) {
LogMessageWithContext(resolved, line, nsIScriptError::warningFlag,
"Warning: cannot register non-local URI '%s' as a resource.",
uri);
continue;
}
rv = rph->SetSubstitution(host, resolved);
NS_ENSURE_SUCCESS(rv, rv);
}
else {
LogMessageWithContext(manifestURI, line, nsIScriptError::warningFlag,
"Warning: Ignoring unrecognized chrome manifest instruction.");
}
}
return NS_OK;
}
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