1614 lines
52 KiB
C++
1614 lines
52 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Norris Boyd
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* Steve Morse
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*/
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#include "nsScriptSecurityManager.h"
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#include "nsIServiceManager.h"
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#include "nsIScriptObjectOwner.h"
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#include "nsIPref.h"
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#include "nsIURL.h"
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#include "nspr.h"
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#include "plstr.h"
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#include "nsCOMPtr.h"
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#include "nsJSPrincipals.h"
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#include "nsSystemPrincipal.h"
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#include "nsCodebasePrincipal.h"
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#include "nsCertificatePrincipal.h"
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#include "nsCRT.h"
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#include "nsXPIDLString.h"
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#include "nsIJSContextStack.h"
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#include "nsDOMError.h"
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#include "xpcexception.h"
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#include "nsDOMCID.h"
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#include "nsIScriptNameSetRegistry.h"
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#include "nsIScriptExternalNameSet.h"
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#include "jsdbgapi.h"
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#include "nsDOMPropNames.h"
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#include "nsIXPConnect.h"
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#include "nsIXPCSecurityManager.h"
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#include "nsTextFormatter.h"
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#include "nsIIOService.h"
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#include "nsIStringBundle.h"
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#include "nsINetSupportDialogService.h"
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static NS_DEFINE_CID(kNetSupportDialogCID, NS_NETSUPPORTDIALOG_CID);
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static NS_DEFINE_IID(kIIOServiceIID, NS_IIOSERVICE_IID);
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static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
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static NS_DEFINE_IID(kIStringBundleServiceIID, NS_ISTRINGBUNDLESERVICE_IID);
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static NS_DEFINE_IID(kStringBundleServiceCID, NS_STRINGBUNDLESERVICE_CID);
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static NS_DEFINE_CID(kPrefServiceCID, NS_PREF_CID);
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static NS_DEFINE_CID(kCScriptNameSetRegistryCID,
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NS_SCRIPT_NAMESET_REGISTRY_CID);
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enum {
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SCRIPT_SECURITY_UNDEFINED_ACCESS,
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SCRIPT_SECURITY_CAPABILITY_ONLY,
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SCRIPT_SECURITY_SAME_DOMAIN_ACCESS,
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SCRIPT_SECURITY_ALL_ACCESS,
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SCRIPT_SECURITY_NO_ACCESS
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};
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static JSContext *
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GetCurrentContext() {
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// Get JSContext from stack.
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nsresult rv;
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NS_WITH_SERVICE(nsIJSContextStack, stack, "nsThreadJSContextStack",
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&rv);
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if (NS_FAILED(rv))
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return nsnull;
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JSContext *cx;
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if (NS_FAILED(stack->Peek(&cx)))
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return nsnull;
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return cx;
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}
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static nsDOMProp
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findDomProp(const char *propName, int n);
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/////////////////////
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// nsIPrincipalKey //
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/////////////////////
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class nsIPrincipalKey : public nsHashKey {
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public:
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nsIPrincipalKey(nsIPrincipal* key) {
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mKey = key;
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NS_IF_ADDREF(mKey);
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}
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~nsIPrincipalKey(void) {
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NS_IF_RELEASE(mKey);
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}
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PRUint32 HashValue(void) const {
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PRUint32 hash;
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mKey->HashValue(&hash);
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return hash;
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}
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PRBool Equals(const nsHashKey *aKey) const {
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PRBool eq;
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mKey->Equals(((nsIPrincipalKey *) aKey)->mKey, &eq);
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return eq;
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}
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nsHashKey *Clone(void) const {
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return new nsIPrincipalKey(mKey);
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}
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protected:
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nsIPrincipal* mKey;
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};
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///////////////////////
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// nsSecurityNameSet //
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///////////////////////
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class nsSecurityNameSet : public nsIScriptExternalNameSet
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{
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public:
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nsSecurityNameSet();
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virtual ~nsSecurityNameSet();
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NS_DECL_ISUPPORTS
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NS_IMETHOD InitializeClasses(nsIScriptContext* aScriptContext);
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NS_IMETHOD AddNameSet(nsIScriptContext* aScriptContext);
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};
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nsSecurityNameSet::nsSecurityNameSet()
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{
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NS_INIT_REFCNT();
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}
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nsSecurityNameSet::~nsSecurityNameSet()
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{
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}
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NS_IMPL_ISUPPORTS(nsSecurityNameSet, NS_GET_IID(nsIScriptExternalNameSet));
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static char *
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getStringArgument(JSContext *cx, JSObject *obj, uintN argc, jsval *argv)
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{
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if (argc == 0 || !JSVAL_IS_STRING(argv[0])) {
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JS_ReportError(cx, "String argument expected");
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return nsnull;
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}
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/*
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* We don't want to use JS_ValueToString because we want to be able
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* to have an object to represent a target in subsequent versions.
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*/
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JSString *str = JSVAL_TO_STRING(argv[0]);
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if (!str)
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return nsnull;
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return JS_GetStringBytes(str);
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}
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PR_STATIC_CALLBACK(JSBool)
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netscape_security_isPrivilegeEnabled(JSContext *cx, JSObject *obj, uintN argc,
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jsval *argv, jsval *rval)
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{
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JSBool result = JS_FALSE;
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char *cap = getStringArgument(cx, obj, argc, argv);
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if (cap) {
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nsresult rv;
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NS_WITH_SERVICE(nsIScriptSecurityManager, securityManager,
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NS_SCRIPTSECURITYMANAGER_PROGID, &rv);
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if (NS_SUCCEEDED(rv)) {
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NS_ASSERTION(cx == GetCurrentContext(), "unexpected context");
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rv = securityManager->IsCapabilityEnabled(cap, &result);
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if (NS_FAILED(rv))
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result = JS_FALSE;
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}
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}
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*rval = BOOLEAN_TO_JSVAL(result);
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return JS_TRUE;
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}
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PR_STATIC_CALLBACK(JSBool)
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netscape_security_enablePrivilege(JSContext *cx, JSObject *obj, uintN argc,
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jsval *argv, jsval *rval)
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{
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char *cap = getStringArgument(cx, obj, argc, argv);
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if (!cap)
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return JS_FALSE;
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nsresult rv;
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NS_WITH_SERVICE(nsIScriptSecurityManager, securityManager,
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NS_SCRIPTSECURITYMANAGER_PROGID, &rv);
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if (NS_FAILED(rv))
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return JS_FALSE;
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NS_ASSERTION(cx == GetCurrentContext(), "unexpected context");
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if (NS_FAILED(securityManager->EnableCapability(cap)))
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return JS_FALSE;
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return JS_TRUE;
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}
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PR_STATIC_CALLBACK(JSBool)
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netscape_security_disablePrivilege(JSContext *cx, JSObject *obj, uintN argc,
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jsval *argv, jsval *rval)
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{
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char *cap = getStringArgument(cx, obj, argc, argv);
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if (!cap)
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return JS_FALSE;
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nsresult rv;
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NS_WITH_SERVICE(nsIScriptSecurityManager, securityManager,
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NS_SCRIPTSECURITYMANAGER_PROGID, &rv);
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if (NS_FAILED(rv))
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return JS_FALSE;
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NS_ASSERTION(cx == GetCurrentContext(), "unexpected context");
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if (NS_FAILED(securityManager->DisableCapability(cap)))
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return JS_FALSE;
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return JS_TRUE;
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}
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PR_STATIC_CALLBACK(JSBool)
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netscape_security_revertPrivilege(JSContext *cx, JSObject *obj, uintN argc,
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jsval *argv, jsval *rval)
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{
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char *cap = getStringArgument(cx, obj, argc, argv);
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if (!cap)
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return JS_FALSE;
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nsresult rv;
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NS_WITH_SERVICE(nsIScriptSecurityManager, securityManager,
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NS_SCRIPTSECURITYMANAGER_PROGID, &rv);
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if (NS_FAILED(rv))
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return JS_FALSE;
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NS_ASSERTION(cx == GetCurrentContext(), "unexpected context");
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if (NS_FAILED(securityManager->RevertCapability(cap)))
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return JS_FALSE;
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return JS_TRUE;
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}
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static JSFunctionSpec PrivilegeManager_static_methods[] = {
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{ "isPrivilegeEnabled", netscape_security_isPrivilegeEnabled, 1},
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{ "enablePrivilege", netscape_security_enablePrivilege, 1},
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{ "disablePrivilege", netscape_security_disablePrivilege, 1},
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{ "revertPrivilege", netscape_security_revertPrivilege, 1},
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{0}
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};
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/*
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* "Steal" calls to netscape.security.PrivilegeManager.enablePrivilege,
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* et. al. so that code that worked with 4.0 can still work.
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*/
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NS_IMETHODIMP
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nsSecurityNameSet::InitializeClasses(nsIScriptContext* aScriptContext)
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{
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JSContext *cx = (JSContext *) aScriptContext->GetNativeContext();
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JSObject *global = JS_GetGlobalObject(cx);
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/*
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* Find Object.prototype's class by walking up the global object's
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* prototype chain.
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*/
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JSObject *obj = global;
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JSObject *proto;
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while ((proto = JS_GetPrototype(cx, obj)) != nsnull)
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obj = proto;
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JSClass *objectClass = JS_GetClass(cx, obj);
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jsval v;
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if (!JS_GetProperty(cx, global, "netscape", &v))
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return NS_ERROR_FAILURE;
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JSObject *securityObj;
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if (JSVAL_IS_OBJECT(v)) {
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/*
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* "netscape" property of window object exists; must be LiveConnect
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* package. Get the "security" property.
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*/
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obj = JSVAL_TO_OBJECT(v);
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if (!JS_GetProperty(cx, obj, "security", &v) || !JSVAL_IS_OBJECT(v))
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return NS_ERROR_FAILURE;
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securityObj = JSVAL_TO_OBJECT(v);
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} else {
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/* define netscape.security object */
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obj = JS_DefineObject(cx, global, "netscape", objectClass, nsnull, 0);
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if (obj == nsnull)
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return NS_ERROR_FAILURE;
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securityObj = JS_DefineObject(cx, obj, "security", objectClass,
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nsnull, 0);
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if (securityObj == nsnull)
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return NS_ERROR_FAILURE;
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}
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/* Define PrivilegeManager object with the necessary "static" methods. */
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obj = JS_DefineObject(cx, securityObj, "PrivilegeManager", objectClass,
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nsnull, 0);
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if (obj == nsnull)
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return NS_ERROR_FAILURE;
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return JS_DefineFunctions(cx, obj, PrivilegeManager_static_methods)
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? NS_OK
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: NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP
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nsSecurityNameSet::AddNameSet(nsIScriptContext* aScriptContext)
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{
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return NS_OK;
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}
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/////////////////////////////
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// nsScriptSecurityManager //
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/////////////////////////////
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////////////////////////////////////
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// Methods implementing ISupports //
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////////////////////////////////////
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NS_IMETHODIMP
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nsScriptSecurityManager::QueryInterface(REFNSIID aIID, void** aInstancePtr)
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{
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if (nsnull == aInstancePtr)
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return NS_ERROR_NULL_POINTER;
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if (aIID.Equals(NS_GET_IID(nsIScriptSecurityManager))) {
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*aInstancePtr = (void*)(nsIScriptSecurityManager *)this;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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if (aIID.Equals(NS_GET_IID(nsIXPCSecurityManager))) {
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*aInstancePtr = (void*)(nsIXPCSecurityManager *)this;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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return NS_NOINTERFACE;
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}
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NS_IMPL_ADDREF(nsScriptSecurityManager);
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NS_IMPL_RELEASE(nsScriptSecurityManager);
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inline PRBool
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GetBit(unsigned char *bitVector, PRInt32 index)
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{
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unsigned char c = bitVector[index >> 3];
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c &= (1 << (index & 7));
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return c != 0;
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}
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inline void
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SetBit(unsigned char *bitVector, PRInt32 index)
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{
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bitVector[index >> 3] |= (1 << (index & 7));
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}
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///////////////////////////////////////////////////
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// Methods implementing nsIScriptSecurityManager //
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///////////////////////////////////////////////////
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NS_IMETHODIMP
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nsScriptSecurityManager::CheckScriptAccess(JSContext *cx,
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void *aObj, PRInt32 domPropInt,
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PRBool isWrite)
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{
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nsDOMProp domProp = (nsDOMProp) domPropInt;
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if (!GetBit(hasPolicyVector, domPropInt)) {
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// No policy for this DOM property, so just allow access.
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return NS_OK;
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}
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nsCOMPtr<nsIPrincipal> principal;
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if (NS_FAILED(GetSubjectPrincipal(cx, getter_AddRefs(principal)))) {
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return NS_ERROR_FAILURE;
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}
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PRBool equals;
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if (!principal ||
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NS_SUCCEEDED(principal->Equals(mSystemPrincipal, &equals)) && equals)
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{
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// We have native code or the system principal: just allow access
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return NS_OK;
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}
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nsCAutoString capability;
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PRInt32 secLevel = GetSecurityLevel(principal, domProp, isWrite,
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capability);
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switch (secLevel) {
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case SCRIPT_SECURITY_UNDEFINED_ACCESS:
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// If no preference is defined for this property, allow access.
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// This violates the rule of a safe default, but means we don't have
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// to specify the large majority of unchecked properties, only the
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// minority of checked ones.
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case SCRIPT_SECURITY_ALL_ACCESS:
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return NS_OK;
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case SCRIPT_SECURITY_SAME_DOMAIN_ACCESS: {
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const char *cap = isWrite
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? "UniversalBrowserWrite"
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: "UniversalBrowserRead";
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return CheckPermissions(cx, (JSObject *) aObj, cap);
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}
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case SCRIPT_SECURITY_CAPABILITY_ONLY: {
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PRBool capabilityEnabled = PR_FALSE;
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nsresult rv = IsCapabilityEnabled(capability, &capabilityEnabled);
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if (NS_FAILED(rv) || !capabilityEnabled)
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return NS_ERROR_DOM_SECURITY_ERR;
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return NS_OK;
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}
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default:
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// Default is no access
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return NS_ERROR_DOM_SECURITY_ERR;
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}
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}
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NS_IMETHODIMP
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nsScriptSecurityManager::CheckLoadURIFromScript(JSContext *cx,
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nsIURI *aURI)
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{
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// Get principal of currently executing script.
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nsCOMPtr<nsIPrincipal> principal;
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if (NS_FAILED(GetSubjectPrincipal(cx, getter_AddRefs(principal)))) {
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return NS_ERROR_FAILURE;
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}
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// Native code can load all URIs.
|
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if (!principal)
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return NS_OK;
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// The system principal can load all URIs.
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PRBool equals = PR_FALSE;
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if (NS_FAILED(principal->Equals(mSystemPrincipal, &equals)))
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return NS_ERROR_FAILURE;
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if (equals)
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return NS_OK;
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// Otherwise, principal should have a codebase that we can use to
|
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// do the remaining tests.
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nsCOMPtr<nsICodebasePrincipal> codebase = do_QueryInterface(principal);
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if (!codebase)
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return NS_ERROR_FAILURE;
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nsCOMPtr<nsIURI> uri;
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if (NS_FAILED(codebase->GetURI(getter_AddRefs(uri))))
|
|
return NS_ERROR_FAILURE;
|
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if (NS_SUCCEEDED(CheckLoadURI(uri, aURI)))
|
|
return NS_OK;
|
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|
|
// See if we're attempting to load a file: URI. If so, let a
|
|
// UniversalFileRead capability trump the above check.
|
|
nsXPIDLCString scheme;
|
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if (NS_FAILED(aURI->GetScheme(getter_Copies(scheme))))
|
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return NS_ERROR_FAILURE;
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if (nsCRT::strcmp(scheme, "file") == 0 ||
|
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nsCRT::strcmp(scheme, "resource") == 0)
|
|
{
|
|
PRBool enabled;
|
|
if (NS_FAILED(IsCapabilityEnabled("UniversalFileRead", &enabled)))
|
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return NS_ERROR_FAILURE;
|
|
if (enabled)
|
|
return NS_OK;
|
|
}
|
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|
|
// Report error.
|
|
nsXPIDLCString spec;
|
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if (NS_FAILED(aURI->GetSpec(getter_Copies(spec))))
|
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return NS_ERROR_FAILURE;
|
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JS_ReportError(cx, "illegal URL method '%s'", (const char *)spec);
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return NS_ERROR_DOM_BAD_URI;
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}
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|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CheckLoadURI(nsIURI *aFromURI,
|
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nsIURI *aURI)
|
|
{
|
|
nsXPIDLCString scheme;
|
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if (NS_FAILED(aURI->GetScheme(getter_Copies(scheme))))
|
|
return NS_ERROR_FAILURE;
|
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if (nsCRT::strcmp(scheme, "http") == 0 ||
|
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nsCRT::strcmp(scheme, "https") == 0 ||
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nsCRT::strcmp(scheme, "javascript") == 0 ||
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nsCRT::strcmp(scheme, "ftp") == 0 ||
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nsCRT::strcmp(scheme, "mailto") == 0 ||
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nsCRT::strcmp(scheme, "news") == 0)
|
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{
|
|
// everyone can access these schemes.
|
|
return NS_OK;
|
|
}
|
|
|
|
nsXPIDLCString scheme2;
|
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if (NS_SUCCEEDED(aFromURI->GetScheme(getter_Copies(scheme2))) &&
|
|
nsCRT::strcmp(scheme, scheme2) == 0)
|
|
{
|
|
// every scheme can access another URI from the same scheme
|
|
return NS_OK;
|
|
}
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|
|
|
if (nsCRT::strcmp(scheme, "about") == 0) {
|
|
nsXPIDLCString spec;
|
|
if (NS_FAILED(aURI->GetSpec(getter_Copies(spec))))
|
|
return NS_ERROR_FAILURE;
|
|
if (nsCRT::strcmp(spec, "about:blank") == 0) {
|
|
return NS_OK;
|
|
}
|
|
}
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|
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return NS_ERROR_DOM_BAD_URI;
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}
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|
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NS_IMETHODIMP
|
|
nsScriptSecurityManager::GetSubjectPrincipal(nsIPrincipal **result)
|
|
{
|
|
JSContext *cx = GetCurrentContext();
|
|
if (!cx) {
|
|
*result = nsnull;
|
|
return NS_OK;
|
|
}
|
|
return GetSubjectPrincipal(cx, result);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::GetSystemPrincipal(nsIPrincipal **result)
|
|
{
|
|
if (!mSystemPrincipal) {
|
|
mSystemPrincipal = new nsSystemPrincipal();
|
|
if (!mSystemPrincipal)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(mSystemPrincipal);
|
|
}
|
|
*result = mSystemPrincipal;
|
|
NS_ADDREF(*result);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::GetCertificatePrincipal(const char* aIssuerName,
|
|
const char* aSerialNumber,
|
|
nsIPrincipal **result)
|
|
{
|
|
nsresult rv;
|
|
nsCertificatePrincipal *certificate = new nsCertificatePrincipal();
|
|
if (!certificate)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(certificate);
|
|
if (NS_FAILED(certificate->Init(aIssuerName, aSerialNumber)))
|
|
{
|
|
NS_RELEASE(certificate);
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsCOMPtr<nsIPrincipal> principal =
|
|
do_QueryInterface((nsBasePrincipal*)certificate, &rv);
|
|
NS_RELEASE(certificate);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (mPrincipals) {
|
|
// Check to see if we already have this principal.
|
|
nsIPrincipalKey key(principal);
|
|
nsCOMPtr<nsIPrincipal> p2 = (nsIPrincipal *) mPrincipals->Get(&key);
|
|
if (p2)
|
|
principal = p2;
|
|
}
|
|
*result = principal;
|
|
NS_ADDREF(*result);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::GetCodebasePrincipal(nsIURI *aURI,
|
|
nsIPrincipal **result)
|
|
{
|
|
nsresult rv;
|
|
nsCodebasePrincipal *codebase = new nsCodebasePrincipal();
|
|
if (!codebase)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(codebase);
|
|
if (NS_FAILED(codebase->Init(aURI))) {
|
|
NS_RELEASE(codebase);
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsCOMPtr<nsIPrincipal> principal =
|
|
do_QueryInterface((nsBasePrincipal*)codebase, &rv);
|
|
NS_RELEASE(codebase);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (mPrincipals) {
|
|
// Check to see if we already have this principal.
|
|
nsIPrincipalKey key(principal);
|
|
nsCOMPtr<nsIPrincipal> p2 = (nsIPrincipal *) mPrincipals->Get(&key);
|
|
if (p2)
|
|
principal = p2;
|
|
}
|
|
*result = principal;
|
|
NS_ADDREF(*result);
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CanExecuteScripts(nsIPrincipal *principal,
|
|
PRBool *result)
|
|
{
|
|
if (principal == mSystemPrincipal) {
|
|
// Even if JavaScript is disabled, we must still execute system scripts
|
|
*result = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
|
|
if (GetBit(hasDomainPolicyVector, NS_DOM_PROP_JAVASCRIPT_ENABLED)) {
|
|
// We may have a per-domain security policy for JavaScript execution
|
|
nsCAutoString capability;
|
|
PRInt32 secLevel = GetSecurityLevel(principal,
|
|
NS_DOM_PROP_JAVASCRIPT_ENABLED,
|
|
PR_FALSE, capability);
|
|
if (secLevel != SCRIPT_SECURITY_UNDEFINED_ACCESS) {
|
|
*result = (secLevel == SCRIPT_SECURITY_ALL_ACCESS);
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
if (mIsJavaScriptEnabled != mIsMailJavaScriptEnabled) {
|
|
// Is this script running from mail?
|
|
nsCOMPtr<nsICodebasePrincipal> codebase = do_QueryInterface(principal);
|
|
if (!codebase)
|
|
return NS_ERROR_FAILURE;
|
|
nsCOMPtr<nsIURI> uri;
|
|
if (NS_FAILED(codebase->GetURI(getter_AddRefs(uri))))
|
|
return NS_ERROR_FAILURE;
|
|
nsXPIDLCString scheme;
|
|
if (NS_FAILED(uri->GetScheme(getter_Copies(scheme))))
|
|
return NS_ERROR_FAILURE;
|
|
if (nsCRT::strcmp(scheme, "imap") == 0 ||
|
|
nsCRT::strcmp(scheme, "mailbox") == 0 ||
|
|
nsCRT::strcmp(scheme, "news") == 0)
|
|
{
|
|
*result = mIsMailJavaScriptEnabled;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
*result = mIsJavaScriptEnabled;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CanExecuteFunction(void *jsFunc,
|
|
PRBool *result)
|
|
{
|
|
// norris TODO: figure out JSContext strategy, replace nsnulls below
|
|
// JavaScript is disabled, but we must still execute system JavaScript
|
|
JSScript *script = JS_GetFunctionScript(nsnull, (JSFunction *) jsFunc);
|
|
if (!script)
|
|
return NS_ERROR_FAILURE;
|
|
JSPrincipals *jsprin = JS_GetScriptPrincipals(nsnull, script);
|
|
if (!jsprin)
|
|
return NS_ERROR_FAILURE;
|
|
nsJSPrincipals *nsJSPrin = (nsJSPrincipals *) jsprin;
|
|
|
|
return CanExecuteScripts(nsJSPrin->nsIPrincipalPtr, result);
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::IsCapabilityEnabled(const char *capability,
|
|
PRBool *result)
|
|
{
|
|
nsresult rv;
|
|
JSStackFrame *fp = nsnull;
|
|
JSContext *cx = GetCurrentContext();
|
|
fp = cx ? JS_FrameIterator(cx, &fp) : nsnull;
|
|
if (!fp) {
|
|
// No script code on stack. Allow execution.
|
|
*result = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
while (fp) {
|
|
JSScript *script = JS_GetFrameScript(cx, fp);
|
|
if (script) {
|
|
JSPrincipals *principals = JS_GetScriptPrincipals(cx, script);
|
|
if (!principals) {
|
|
// Script didn't have principals!
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// First check if the principal is even able to enable the
|
|
// given capability. If not, don't look any further.
|
|
nsJSPrincipals *nsJSPrin = (nsJSPrincipals *) principals;
|
|
PRInt16 canEnable;
|
|
rv = nsJSPrin->nsIPrincipalPtr->CanEnableCapability(capability,
|
|
&canEnable);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
if (canEnable != nsIPrincipal::ENABLE_GRANTED &&
|
|
canEnable != nsIPrincipal::ENABLE_WITH_USER_PERMISSION)
|
|
{
|
|
*result = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
// Now see if the capability is enabled.
|
|
void *annotation = JS_GetFrameAnnotation(cx, fp);
|
|
rv = nsJSPrin->nsIPrincipalPtr->IsCapabilityEnabled(capability,
|
|
annotation,
|
|
result);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
if (*result)
|
|
return NS_OK;
|
|
}
|
|
fp = JS_FrameIterator(cx, &fp);
|
|
}
|
|
*result = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
#define PROPERTIES_URL "chrome://security/locale/security.properties"
|
|
|
|
nsresult
|
|
Localize(char *genericString, nsString &result)
|
|
{
|
|
nsresult ret;
|
|
|
|
/* create a URL for the string resource file */
|
|
nsIIOService *pNetService = nsnull;
|
|
ret = nsServiceManager::GetService(kIOServiceCID, kIIOServiceIID,
|
|
(nsISupports**) &pNetService);
|
|
if (NS_FAILED(ret)) {
|
|
NS_WARNING("cannot get net service\n");
|
|
return ret;
|
|
}
|
|
nsIURI *uri = nsnull;
|
|
ret = pNetService->NewURI(PROPERTIES_URL, nsnull, &uri);
|
|
if (NS_FAILED(ret)) {
|
|
NS_WARNING("cannot create URI\n");
|
|
nsServiceManager::ReleaseService(kIOServiceCID, pNetService);
|
|
return ret;
|
|
}
|
|
|
|
nsIURI *url = nsnull;
|
|
ret = uri->QueryInterface(NS_GET_IID(nsIURI), (void**)&url);
|
|
nsServiceManager::ReleaseService(kIOServiceCID, pNetService);
|
|
|
|
if (NS_FAILED(ret)) {
|
|
NS_WARNING("cannot create URL\n");
|
|
return ret;
|
|
}
|
|
|
|
/* create a bundle for the localization */
|
|
nsIStringBundleService *pStringService = nsnull;
|
|
ret = nsServiceManager::GetService(kStringBundleServiceCID,
|
|
kIStringBundleServiceIID, (nsISupports**) &pStringService);
|
|
if (NS_FAILED(ret)) {
|
|
NS_WARNING("cannot get string service\n");
|
|
return ret;
|
|
}
|
|
char *spec = nsnull;
|
|
ret = url->GetSpec(&spec);
|
|
if (NS_FAILED(ret)) {
|
|
NS_WARNING("cannot get url spec\n");
|
|
nsServiceManager::ReleaseService(kStringBundleServiceCID, pStringService);
|
|
nsCRT::free(spec);
|
|
return ret;
|
|
}
|
|
nsILocale *locale = nsnull;
|
|
nsIStringBundle *bundle = nsnull;
|
|
ret = pStringService->CreateBundle(spec, locale, &bundle);
|
|
nsCRT::free(spec);
|
|
nsServiceManager::ReleaseService(kStringBundleServiceCID, pStringService);
|
|
if (NS_FAILED(ret)) {
|
|
NS_WARNING("cannot create instance\n");
|
|
return ret;
|
|
}
|
|
|
|
/* localize the given string */
|
|
nsAutoString strtmp(genericString);
|
|
PRUnichar *ptrv = nsnull;
|
|
ret = bundle->GetStringFromName(strtmp.GetUnicode(), &ptrv);
|
|
NS_RELEASE(bundle);
|
|
if (NS_FAILED(ret)) {
|
|
NS_WARNING("cannot get string from name\n");
|
|
}
|
|
result = ptrv;
|
|
nsCRT::free(ptrv);
|
|
return ret;
|
|
}
|
|
|
|
static PRBool
|
|
CheckConfirmDialog(const PRUnichar *szMessage, const PRUnichar *szCheckMessage,
|
|
PRBool *checkValue)
|
|
{
|
|
nsresult res;
|
|
NS_WITH_SERVICE(nsIPrompt, dialog, kNetSupportDialogCID, &res);
|
|
if (NS_FAILED(res)) {
|
|
*checkValue = 0;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRInt32 buttonPressed = 1; /* in case user exits dialog by clicking X */
|
|
nsAutoString yes, no, titleline;
|
|
if (NS_FAILED(res = Localize("Yes", yes)))
|
|
return PR_FALSE;
|
|
if (NS_FAILED(res = Localize("No", no)))
|
|
return PR_FALSE;
|
|
if (NS_FAILED(res = Localize("Titleline", titleline)))
|
|
return PR_FALSE;
|
|
|
|
res = dialog->UniversalDialog(
|
|
nsnull, /* title message */
|
|
titleline.GetUnicode(), /* title text in top line of window */
|
|
szMessage, /* this is the main message */
|
|
szCheckMessage, /* This is the checkbox message */
|
|
yes.GetUnicode(), /* first button text */
|
|
no.GetUnicode(), /* second button text */
|
|
nsnull, /* third button text */
|
|
nsnull, /* fourth button text */
|
|
nsnull, /* first edit field label */
|
|
nsnull, /* second edit field label */
|
|
nsnull, /* first edit field initial and final value */
|
|
nsnull, /* second edit field initial and final value */
|
|
nsnull, /* icon: question mark by default */
|
|
checkValue, /* initial and final value of checkbox */
|
|
2, /* number of buttons */
|
|
0, /* number of edit fields */
|
|
0, /* is first edit field a password field */
|
|
&buttonPressed);
|
|
|
|
if (NS_FAILED(res)) {
|
|
*checkValue = 0;
|
|
}
|
|
if (*checkValue != 0 && *checkValue != 1) {
|
|
*checkValue = 0; /* this should never happen but it is happening!!! */
|
|
}
|
|
return (buttonPressed == 0);
|
|
}
|
|
|
|
static nsresult
|
|
GetPrincipalAndFrame(JSContext *cx, nsIPrincipal **result,
|
|
JSStackFrame **frameResult)
|
|
{
|
|
// Get principals from innermost frame of JavaScript or Java.
|
|
JSStackFrame *fp = nsnull; // tell JS_FrameIterator to start at innermost
|
|
fp = JS_FrameIterator(cx, &fp);
|
|
while (fp) {
|
|
JSScript *script = JS_GetFrameScript(cx, fp);
|
|
if (script) {
|
|
JSPrincipals *principals = JS_GetScriptPrincipals(cx, script);
|
|
if (!principals) {
|
|
// Script didn't have principals!
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsJSPrincipals *nsJSPrin = (nsJSPrincipals *) principals;
|
|
*result = nsJSPrin->nsIPrincipalPtr;
|
|
NS_ADDREF(*result);
|
|
*frameResult = fp;
|
|
return NS_OK;
|
|
}
|
|
fp = JS_FrameIterator(cx, &fp);
|
|
}
|
|
*result = nsnull;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::EnableCapability(const char *capability)
|
|
{
|
|
JSContext *cx = GetCurrentContext();
|
|
JSStackFrame *fp;
|
|
nsCOMPtr<nsIPrincipal> principal;
|
|
if (NS_FAILED(GetPrincipalAndFrame(cx, getter_AddRefs(principal),
|
|
&fp)))
|
|
{
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
void *annotation = JS_GetFrameAnnotation(cx, fp);
|
|
PRBool enabled;
|
|
if (NS_FAILED(principal->IsCapabilityEnabled(capability, annotation,
|
|
&enabled)))
|
|
{
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (enabled)
|
|
return NS_OK;
|
|
PRInt16 canEnable;
|
|
if (NS_FAILED(principal->CanEnableCapability(capability, &canEnable)))
|
|
return NS_ERROR_FAILURE;
|
|
if (canEnable == nsIPrincipal::ENABLE_WITH_USER_PERMISSION) {
|
|
// Prompt user for permission to enable capability.
|
|
static PRBool remember = PR_TRUE;
|
|
nsAutoString query, check;
|
|
if (NS_FAILED(Localize("EnableCapabilityQuery", query)))
|
|
return NS_ERROR_FAILURE;
|
|
if (NS_FAILED(Localize("CheckMessage", check)))
|
|
return NS_ERROR_FAILURE;
|
|
char *source;
|
|
if (NS_FAILED(principal->ToUserVisibleString(&source)))
|
|
return NS_ERROR_FAILURE;
|
|
PRUnichar *message = nsTextFormatter::smprintf(query.GetUnicode(),
|
|
source);
|
|
Recycle(source);
|
|
if (CheckConfirmDialog(message, check.GetUnicode(), &remember))
|
|
canEnable = nsIPrincipal::ENABLE_GRANTED;
|
|
else
|
|
canEnable = nsIPrincipal::ENABLE_DENIED;
|
|
PR_FREEIF(message);
|
|
if (remember) {
|
|
if (NS_FAILED(principal->SetCanEnableCapability(capability, canEnable)))
|
|
return NS_ERROR_FAILURE;
|
|
mIsWritingPrefs = PR_TRUE;
|
|
if (NS_FAILED(principal->WriteToPrefs(mPrefs))) {
|
|
mIsWritingPrefs = PR_FALSE;
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
mIsWritingPrefs = PR_FALSE;
|
|
if (NS_FAILED(mPrefs->SavePrefFile()))
|
|
return NS_ERROR_FAILURE;
|
|
nsIPrincipalKey key(principal);
|
|
if (!mPrincipals) {
|
|
mPrincipals = new nsSupportsHashtable(31);
|
|
if (!mPrincipals)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
// This is a little sneaky. "supports" below is a void *, which won't
|
|
// be refcounted, but is matched with a key that is the same object,
|
|
// which will be refcounted.
|
|
mPrincipals->Put(&key, principal);
|
|
}
|
|
}
|
|
if (canEnable != nsIPrincipal::ENABLE_GRANTED) {
|
|
static const char msg[] = "enablePrivilege not granted";
|
|
JS_SetPendingException(cx, STRING_TO_JSVAL(JS_NewStringCopyZ(cx, msg)));
|
|
return NS_ERROR_FAILURE; // XXX better error code?
|
|
}
|
|
if (NS_FAILED(principal->EnableCapability(capability, &annotation)))
|
|
return NS_ERROR_FAILURE;
|
|
JS_SetFrameAnnotation(cx, fp, annotation);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::RevertCapability(const char *capability)
|
|
{
|
|
JSContext *cx = GetCurrentContext();
|
|
JSStackFrame *fp;
|
|
nsCOMPtr<nsIPrincipal> principal;
|
|
if (NS_FAILED(GetPrincipalAndFrame(cx, getter_AddRefs(principal),
|
|
&fp)))
|
|
{
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
void *annotation = JS_GetFrameAnnotation(cx, fp);
|
|
principal->RevertCapability(capability, &annotation);
|
|
JS_SetFrameAnnotation(cx, fp, annotation);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::DisableCapability(const char *capability)
|
|
{
|
|
JSContext *cx = GetCurrentContext();
|
|
JSStackFrame *fp;
|
|
nsCOMPtr<nsIPrincipal> principal;
|
|
if (NS_FAILED(GetPrincipalAndFrame(cx, getter_AddRefs(principal),
|
|
&fp)))
|
|
{
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
void *annotation = JS_GetFrameAnnotation(cx, fp);
|
|
principal->DisableCapability(capability, &annotation);
|
|
JS_SetFrameAnnotation(cx, fp, annotation);
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
////////////////////////////////////////////////
|
|
// Methods implementing nsIXPCSecurityManager //
|
|
////////////////////////////////////////////////
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CanCreateWrapper(JSContext *aJSContext,
|
|
const nsIID &aIID,
|
|
nsISupports *aObj)
|
|
{
|
|
if (aIID.Equals(NS_GET_IID(nsIXPCException)))
|
|
return NS_OK;
|
|
return CheckXPCPermissions(aJSContext);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CanCreateInstance(JSContext *aJSContext,
|
|
const nsCID &aCID)
|
|
{
|
|
return CheckXPCPermissions(aJSContext);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CanGetService(JSContext *aJSContext,
|
|
const nsCID &aCID)
|
|
{
|
|
return CheckXPCPermissions(aJSContext);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CanCallMethod(JSContext *aJSContext,
|
|
const nsIID &aIID,
|
|
nsISupports *aObj,
|
|
nsIInterfaceInfo *aInterfaceInfo,
|
|
PRUint16 aMethodIndex,
|
|
const jsid aName)
|
|
{
|
|
return CheckXPCPermissions(aJSContext);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CanGetProperty(JSContext *aJSContext,
|
|
const nsIID &aIID,
|
|
nsISupports *aObj,
|
|
nsIInterfaceInfo *aInterfaceInfo,
|
|
PRUint16 aMethodIndex,
|
|
const jsid aName)
|
|
{
|
|
return CheckXPCPermissions(aJSContext);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CanSetProperty(JSContext *aJSContext,
|
|
const nsIID &aIID,
|
|
nsISupports *aObj,
|
|
nsIInterfaceInfo *aInterfaceInfo,
|
|
PRUint16 aMethodIndex,
|
|
const jsid aName)
|
|
{
|
|
return CheckXPCPermissions(aJSContext);
|
|
}
|
|
|
|
///////////////////
|
|
// Other methods //
|
|
///////////////////
|
|
|
|
nsScriptSecurityManager::nsScriptSecurityManager(void)
|
|
: mOriginToPolicyMap(nsnull), mPrefs(nsnull),
|
|
mSystemPrincipal(nsnull), mPrincipals(nsnull),
|
|
mIsJavaScriptEnabled(PR_FALSE),
|
|
mIsMailJavaScriptEnabled(PR_FALSE),
|
|
mIsWritingPrefs(PR_FALSE)
|
|
{
|
|
NS_INIT_REFCNT();
|
|
memset(hasPolicyVector, 0, sizeof(hasPolicyVector));
|
|
memset(hasDomainPolicyVector, 0, sizeof(hasDomainPolicyVector));
|
|
InitFromPrefs();
|
|
}
|
|
|
|
nsScriptSecurityManager::~nsScriptSecurityManager(void)
|
|
{
|
|
delete mOriginToPolicyMap;
|
|
NS_IF_RELEASE(mPrefs);
|
|
NS_IF_RELEASE(mSystemPrincipal);
|
|
delete mPrincipals;
|
|
}
|
|
|
|
nsScriptSecurityManager *
|
|
nsScriptSecurityManager::GetScriptSecurityManager()
|
|
{
|
|
static nsScriptSecurityManager *ssecMan = NULL;
|
|
if (!ssecMan) {
|
|
ssecMan = new nsScriptSecurityManager();
|
|
if (!ssecMan)
|
|
return NULL;
|
|
nsresult rv;
|
|
NS_WITH_SERVICE(nsIScriptNameSetRegistry, registry,
|
|
kCScriptNameSetRegistryCID, &rv);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsSecurityNameSet* nameSet = new nsSecurityNameSet();
|
|
registry->AddExternalNameSet(nameSet);
|
|
}
|
|
|
|
NS_WITH_SERVICE(nsIXPConnect, xpc, nsIXPConnect::GetCID(), &rv);
|
|
if (NS_SUCCEEDED(rv) && xpc) {
|
|
rv = xpc->SetDefaultSecurityManager(
|
|
NS_STATIC_CAST(nsIXPCSecurityManager*, ssecMan),
|
|
nsIXPCSecurityManager::HOOK_ALL);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("failed to install xpconnect security manager!");
|
|
}
|
|
#ifdef DEBUG_jband
|
|
else {
|
|
printf("!!!!! xpc security manager registered\n");
|
|
}
|
|
#endif
|
|
}
|
|
else {
|
|
NS_WARNING("can't get xpconnect to install security manager!");
|
|
}
|
|
}
|
|
return ssecMan;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::GetSubjectPrincipal(JSContext *cx,
|
|
nsIPrincipal **result)
|
|
{
|
|
JSStackFrame *fp;
|
|
return GetPrincipalAndFrame(cx, result, &fp);
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::GetObjectPrincipal(JSContext *aCx, JSObject *aObj,
|
|
nsIPrincipal **result)
|
|
{
|
|
JSObject *parent = aObj;
|
|
do {
|
|
JSClass *jsClass = JS_GetClass(aCx, parent);
|
|
const uint32 privateNsISupports = JSCLASS_HAS_PRIVATE |
|
|
JSCLASS_PRIVATE_IS_NSISUPPORTS;
|
|
if (jsClass && (jsClass->flags & (privateNsISupports)) ==
|
|
privateNsISupports)
|
|
{
|
|
nsISupports *supports = (nsISupports *) JS_GetPrivate(aCx, parent);
|
|
nsCOMPtr<nsIScriptObjectPrincipal> objPrin =
|
|
do_QueryInterface(supports);
|
|
if (objPrin && NS_SUCCEEDED(objPrin->GetPrincipal(result)))
|
|
return NS_OK;
|
|
}
|
|
parent = JS_GetParent(aCx, parent);
|
|
} while (parent);
|
|
|
|
// Couldn't find a principal for this object.
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CheckPermissions(JSContext *aCx, JSObject *aObj,
|
|
const char *aCapability)
|
|
{
|
|
/*
|
|
** Get origin of subject and object and compare.
|
|
*/
|
|
nsCOMPtr<nsIPrincipal> subject;
|
|
if (NS_FAILED(GetSubjectPrincipal(aCx, getter_AddRefs(subject))))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// If native code or system principal, allow access
|
|
PRBool equals;
|
|
if (!subject ||
|
|
(NS_SUCCEEDED(subject->Equals(mSystemPrincipal, &equals)) && equals))
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsIPrincipal> object;
|
|
if (NS_FAILED(GetObjectPrincipal(aCx, aObj, getter_AddRefs(object))))
|
|
return NS_ERROR_FAILURE;
|
|
if (subject == object) {
|
|
return NS_OK;
|
|
}
|
|
nsCOMPtr<nsICodebasePrincipal> subjectCodebase = do_QueryInterface(subject);
|
|
if (subjectCodebase) {
|
|
PRBool isSameOrigin = PR_FALSE;
|
|
if (NS_FAILED(subjectCodebase->SameOrigin(object, &isSameOrigin)))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
if (isSameOrigin)
|
|
return NS_OK;
|
|
}
|
|
|
|
// Allow access to about:blank
|
|
nsCOMPtr<nsICodebasePrincipal> objectCodebase = do_QueryInterface(object);
|
|
if (objectCodebase) {
|
|
nsXPIDLCString origin;
|
|
if (NS_FAILED(objectCodebase->GetOrigin(getter_Copies(origin))))
|
|
return NS_ERROR_FAILURE;
|
|
if (nsCRT::strcmp(origin, "about:blank") == 0) {
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
/*
|
|
** If we failed the origin tests it still might be the case that we
|
|
** are a signed script and have permissions to do this operation.
|
|
** Check for that here
|
|
*/
|
|
PRBool capabilityEnabled = PR_FALSE;
|
|
if (NS_FAILED(IsCapabilityEnabled(aCapability, &capabilityEnabled)))
|
|
return NS_ERROR_FAILURE;
|
|
if (capabilityEnabled)
|
|
return NS_OK;
|
|
|
|
/*
|
|
** Access tests failed, so now report error.
|
|
*/
|
|
char *str;
|
|
if (NS_FAILED(subject->ToUserVisibleString(&str)))
|
|
return NS_ERROR_FAILURE;
|
|
JS_ReportError(aCx, "access disallowed from scripts at %s to documents "
|
|
"at another domain", str);
|
|
nsCRT::free(str);
|
|
return NS_ERROR_DOM_PROP_ACCESS_DENIED;
|
|
}
|
|
|
|
PRInt32
|
|
nsScriptSecurityManager::GetSecurityLevel(nsIPrincipal *principal,
|
|
nsDOMProp domProp,
|
|
PRBool isWrite,
|
|
nsCString &capability)
|
|
{
|
|
nsCAutoString prefName;
|
|
if (NS_FAILED(GetPrefName(principal, domProp, prefName)))
|
|
return SCRIPT_SECURITY_NO_ACCESS;
|
|
PRInt32 secLevel;
|
|
char *secLevelString;
|
|
nsresult rv;
|
|
rv = mPrefs->CopyCharPref(prefName, &secLevelString);
|
|
if (NS_FAILED(rv)) {
|
|
prefName += (isWrite ? ".write" : ".read");
|
|
rv = mPrefs->CopyCharPref(prefName, &secLevelString);
|
|
}
|
|
if (NS_SUCCEEDED(rv) && secLevelString) {
|
|
if (PL_strcmp(secLevelString, "sameOrigin") == 0)
|
|
secLevel = SCRIPT_SECURITY_SAME_DOMAIN_ACCESS;
|
|
else if (PL_strcmp(secLevelString, "allAccess") == 0)
|
|
secLevel = SCRIPT_SECURITY_ALL_ACCESS;
|
|
else if (PL_strcmp(secLevelString, "noAccess") == 0)
|
|
secLevel = SCRIPT_SECURITY_NO_ACCESS;
|
|
else {
|
|
// string should be the name of a capability
|
|
capability = secLevelString;
|
|
secLevelString = nsnull;
|
|
secLevel = SCRIPT_SECURITY_CAPABILITY_ONLY;
|
|
}
|
|
if (secLevelString)
|
|
PR_Free(secLevelString);
|
|
return secLevel;
|
|
}
|
|
return SCRIPT_SECURITY_UNDEFINED_ACCESS;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CheckXPCPermissions(JSContext *aJSContext)
|
|
{
|
|
PRBool ok = PR_FALSE;
|
|
if (NS_FAILED(IsCapabilityEnabled("UniversalXPConnect", &ok)))
|
|
ok = PR_FALSE;
|
|
if (!ok) {
|
|
// T E M P O R A R Y
|
|
// Check the pref "security.checkxpconnect". If it exists and is
|
|
// set to false, don't report an error.
|
|
nsresult rv;
|
|
NS_WITH_SERVICE(nsIPref, prefs, kPrefServiceCID, &rv);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
PRBool enabled;
|
|
if (NS_SUCCEEDED(prefs->GetBoolPref("security.checkxpconnect",
|
|
&enabled)) &&
|
|
!enabled)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
}
|
|
// T E M P O R A R Y
|
|
static const char msg[] = "Access denied to XPConnect service.";
|
|
JS_SetPendingException(aJSContext,
|
|
STRING_TO_JSVAL(JS_NewStringCopyZ(aJSContext, msg)));
|
|
return NS_ERROR_DOM_XPCONNECT_ACCESS_DENIED;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
static char *domPropNames[] = {
|
|
NS_DOM_PROP_NAMES
|
|
};
|
|
|
|
struct nsDomainEntry {
|
|
nsDomainEntry(const char *anOrigin, const char *aPolicy,
|
|
int aPolicyLength)
|
|
: mNext(nsnull), mOrigin(anOrigin), mPolicy(aPolicy, aPolicyLength)
|
|
{ }
|
|
PRBool Matches(const char *anOrigin) {
|
|
int len = nsCRT::strlen(anOrigin);
|
|
int thisLen = mOrigin.Length();
|
|
if (len < thisLen)
|
|
return PR_FALSE;
|
|
if (mOrigin != (anOrigin + (len - thisLen)))
|
|
return PR_FALSE;
|
|
if (len == thisLen)
|
|
return PR_TRUE;
|
|
char charBefore = anOrigin[len-thisLen-1];
|
|
return (charBefore == '.' || charBefore == ':' || charBefore == '/');
|
|
}
|
|
nsDomainEntry *mNext;
|
|
nsCString mOrigin;
|
|
nsCString mPolicy;
|
|
};
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::GetPrefName(nsIPrincipal *principal,
|
|
nsDOMProp domProp, nsCString &result)
|
|
{
|
|
static const char *defaultStr = "default";
|
|
result = "security.policy.";
|
|
if (!GetBit(hasDomainPolicyVector, domProp)) {
|
|
result += defaultStr;
|
|
} else {
|
|
PRBool equals = PR_TRUE;
|
|
if (principal && NS_FAILED(principal->Equals(mSystemPrincipal, &equals)))
|
|
return NS_ERROR_FAILURE;
|
|
if (equals) {
|
|
result += defaultStr;
|
|
} else {
|
|
nsCOMPtr<nsICodebasePrincipal> codebase = do_QueryInterface(principal);
|
|
if (!codebase)
|
|
return NS_ERROR_FAILURE;
|
|
nsresult rv;
|
|
nsXPIDLCString origin;
|
|
if (NS_FAILED(rv = codebase->GetOrigin(getter_Copies(origin))))
|
|
return rv;
|
|
nsCString *policy = nsnull;
|
|
if (mOriginToPolicyMap) {
|
|
const char *s = origin;
|
|
const char *nextToLastDot = nsnull;
|
|
const char *lastDot = nsnull;
|
|
const char *p = s;
|
|
while (*p) {
|
|
if (*p == '.') {
|
|
nextToLastDot = lastDot;
|
|
lastDot = p;
|
|
}
|
|
p++;
|
|
}
|
|
nsStringKey key(nextToLastDot ? nextToLastDot+1 : s);
|
|
nsDomainEntry *de = (nsDomainEntry *) mOriginToPolicyMap->Get(&key);
|
|
while (de) {
|
|
if (de->Matches(s)) {
|
|
policy = &de->mPolicy;
|
|
break;
|
|
}
|
|
de = de->mNext;
|
|
}
|
|
}
|
|
if (policy)
|
|
result += *policy;
|
|
else
|
|
result += defaultStr;
|
|
}
|
|
}
|
|
result += '.';
|
|
result += domPropNames[domProp];
|
|
return NS_OK;
|
|
}
|
|
|
|
static nsDOMProp
|
|
findDomProp(const char *propName, int n)
|
|
{
|
|
int hi = sizeof(domPropNames)/sizeof(domPropNames[0]) - 1;
|
|
int lo = 0;
|
|
do {
|
|
int mid = (hi + lo) / 2;
|
|
int cmp = PL_strncmp(propName, domPropNames[mid], n);
|
|
if (cmp == 0) {
|
|
if (domPropNames[mid][n] == '\0')
|
|
return (nsDOMProp) mid;
|
|
cmp = -1;
|
|
}
|
|
if (cmp < 0)
|
|
hi = mid - 1;
|
|
else
|
|
lo = mid + 1;
|
|
} while (hi > lo);
|
|
if (PL_strncmp(propName, domPropNames[lo], n) == 0 &&
|
|
domPropNames[lo][n] == '\0')
|
|
{
|
|
return (nsDOMProp) lo;
|
|
}
|
|
return NS_DOM_PROP_MAX;
|
|
}
|
|
|
|
PR_STATIC_CALLBACK(PRBool)
|
|
DeleteEntry(nsHashKey *aKey, void *aData, void* closure)
|
|
{
|
|
nsDomainEntry *entry = (nsDomainEntry *) aData;
|
|
do {
|
|
nsDomainEntry *next = entry->mNext;
|
|
delete entry;
|
|
entry = next;
|
|
} while (entry);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
void
|
|
nsScriptSecurityManager::EnumeratePolicyCallback(const char *prefName,
|
|
void *data)
|
|
{
|
|
if (!prefName || !*prefName)
|
|
return;
|
|
nsScriptSecurityManager *mgr = (nsScriptSecurityManager *) data;
|
|
unsigned count = 0;
|
|
const char *dots[5];
|
|
const char *p;
|
|
for (p=prefName; *p; p++) {
|
|
if (*p == '.') {
|
|
dots[count++] = p;
|
|
if (count == sizeof(dots)/sizeof(dots[0]))
|
|
break;
|
|
}
|
|
}
|
|
if (count < sizeof(dots)/sizeof(dots[0]))
|
|
dots[count] = p;
|
|
if (count < 3)
|
|
return;
|
|
const char *policyName = dots[1] + 1;
|
|
int policyLength = dots[2] - policyName;
|
|
PRBool isDefault = PL_strncmp("default", policyName, policyLength) == 0;
|
|
if (!isDefault && count == 3) {
|
|
// security.policy.<policyname>.sites
|
|
const char *sitesName = dots[2] + 1;
|
|
int sitesLength = dots[3] - sitesName;
|
|
if (PL_strncmp("sites", sitesName, sitesLength) == 0) {
|
|
if (!mgr->mOriginToPolicyMap) {
|
|
mgr->mOriginToPolicyMap =
|
|
new nsObjectHashtable(nsnull, nsnull, DeleteEntry, nsnull);
|
|
if (!mgr->mOriginToPolicyMap)
|
|
return;
|
|
}
|
|
char *s;
|
|
if (NS_FAILED(mgr->mPrefs->CopyCharPref(prefName, &s)))
|
|
return;
|
|
char *q=s;
|
|
char *r=s;
|
|
char *lastDot = nsnull;
|
|
char *nextToLastDot = nsnull;
|
|
PRBool working = PR_TRUE;
|
|
while (working) {
|
|
if (*r == ' ' || *r == '\0') {
|
|
working = (*r != '\0');
|
|
*r = '\0';
|
|
nsStringKey key(nextToLastDot ? nextToLastDot+1 : q);
|
|
nsDomainEntry *value = new nsDomainEntry(q, policyName,
|
|
policyLength);
|
|
if (!value)
|
|
break;
|
|
nsDomainEntry *de = (nsDomainEntry *)
|
|
mgr->mOriginToPolicyMap->Get(&key);
|
|
if (!de) {
|
|
mgr->mOriginToPolicyMap->Put(&key, value);
|
|
} else {
|
|
if (de->Matches(q)) {
|
|
value->mNext = de;
|
|
mgr->mOriginToPolicyMap->Put(&key, value);
|
|
} else {
|
|
while (de->mNext) {
|
|
if (de->mNext->Matches(q)) {
|
|
value->mNext = de->mNext;
|
|
de->mNext = value;
|
|
break;
|
|
}
|
|
de = de->mNext;
|
|
}
|
|
if (!de->mNext) {
|
|
de->mNext = value;
|
|
}
|
|
}
|
|
}
|
|
q = r + 1;
|
|
lastDot = nextToLastDot = nsnull;
|
|
} else if (*r == '.') {
|
|
nextToLastDot = lastDot;
|
|
lastDot = r;
|
|
}
|
|
r++;
|
|
}
|
|
PR_Free(s);
|
|
return;
|
|
}
|
|
} else if (count >= 4) {
|
|
// security.policy.<policyname>.<object>.<property>[.read|.write]
|
|
const char *domPropName = dots[2] + 1;
|
|
int domPropLength = dots[4] - domPropName;
|
|
nsDOMProp domProp = findDomProp(domPropName, domPropLength);
|
|
if (domProp < NS_DOM_PROP_MAX) {
|
|
SetBit(mgr->hasPolicyVector, domProp);
|
|
if (!isDefault)
|
|
SetBit(mgr->hasDomainPolicyVector, domProp);
|
|
return;
|
|
}
|
|
}
|
|
NS_ASSERTION(PR_FALSE, "DOM property name invalid or not found");
|
|
}
|
|
|
|
struct EnumeratePrincipalsInfo {
|
|
// this struct doesn't own these objects; consider them parameters on
|
|
// the stack
|
|
nsSupportsHashtable *ht;
|
|
nsIPref *prefs;
|
|
};
|
|
|
|
void
|
|
nsScriptSecurityManager::EnumeratePrincipalsCallback(const char *prefName,
|
|
void *voidParam)
|
|
{
|
|
EnumeratePrincipalsInfo *info = (EnumeratePrincipalsInfo *) voidParam;
|
|
|
|
char* data;
|
|
if (NS_FAILED(info->prefs->CopyCharPref(prefName, &data)))
|
|
return;
|
|
|
|
static char codebaseName[] = "[Codebase ";
|
|
static char certificateName[] = "[Certificate ";
|
|
nsCOMPtr<nsIPrincipal> principal;
|
|
if (PL_strncasecmp(data, codebaseName, sizeof(codebaseName)-1) == 0) {
|
|
nsCodebasePrincipal *codebase = new nsCodebasePrincipal();
|
|
if (codebase) {
|
|
NS_ADDREF(codebase);
|
|
if (NS_SUCCEEDED(codebase->InitFromPersistent(prefName, data)))
|
|
principal = do_QueryInterface((nsBasePrincipal*)codebase);
|
|
NS_RELEASE(codebase);
|
|
}
|
|
} else if (PL_strncasecmp(data, certificateName,
|
|
sizeof(certificateName)-1) == 0)
|
|
{
|
|
nsCertificatePrincipal *certificate = new nsCertificatePrincipal();
|
|
if (certificate) {
|
|
NS_ADDREF(certificate);
|
|
if (NS_SUCCEEDED(certificate->InitFromPersistent(prefName, data)))
|
|
principal = do_QueryInterface((nsBasePrincipal*)certificate);
|
|
NS_RELEASE(certificate);
|
|
}
|
|
}
|
|
nsCRT::free(data);
|
|
if (principal) {
|
|
nsIPrincipalKey key(principal);
|
|
info->ht->Put(&key, principal);
|
|
}
|
|
}
|
|
|
|
static const char jsEnabledPrefName[] = "javascript.enabled";
|
|
static const char jsMailEnabledPrefName[] = "javascript.allow.mailnews";
|
|
|
|
int
|
|
nsScriptSecurityManager::JSEnabledPrefChanged(const char *pref, void *data)
|
|
{
|
|
nsScriptSecurityManager *secMgr = (nsScriptSecurityManager *) data;
|
|
|
|
if (NS_FAILED(secMgr->mPrefs->GetBoolPref(jsEnabledPrefName,
|
|
&secMgr->mIsJavaScriptEnabled)))
|
|
{
|
|
// Default to enabled.
|
|
secMgr->mIsJavaScriptEnabled = PR_TRUE;
|
|
}
|
|
|
|
if (NS_FAILED(secMgr->mPrefs->GetBoolPref(jsMailEnabledPrefName,
|
|
&secMgr->mIsMailJavaScriptEnabled)))
|
|
{
|
|
// Default to enabled.
|
|
secMgr->mIsMailJavaScriptEnabled = PR_TRUE;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
nsScriptSecurityManager::PrincipalPrefChanged(const char *pref, void *data)
|
|
{
|
|
nsScriptSecurityManager *secMgr = (nsScriptSecurityManager *) data;
|
|
if (secMgr->mIsWritingPrefs)
|
|
return 0;
|
|
EnumeratePrincipalsInfo info;
|
|
info.ht = secMgr->mPrincipals;
|
|
info.prefs = secMgr->mPrefs;
|
|
EnumeratePrincipalsCallback(pref, &info);
|
|
return 0;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::InitFromPrefs()
|
|
{
|
|
// The DOM property enums and names better be in sync
|
|
NS_ASSERTION(NS_DOM_PROP_MAX == sizeof(domPropNames)/sizeof(domPropNames[0]),
|
|
"mismatch in property name count");
|
|
|
|
nsresult rv;
|
|
NS_WITH_SERVICE(nsIPref, prefs, kPrefServiceCID, &rv);
|
|
if (NS_FAILED(rv))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
mPrefs = prefs;
|
|
NS_ADDREF(mPrefs);
|
|
|
|
// Set the initial value of the "javascript.enabled" pref
|
|
JSEnabledPrefChanged(jsEnabledPrefName, this);
|
|
|
|
// set callbacks in case the value of the pref changes
|
|
prefs->RegisterCallback(jsEnabledPrefName, JSEnabledPrefChanged, this);
|
|
prefs->RegisterCallback(jsMailEnabledPrefName, JSEnabledPrefChanged, this);
|
|
prefs->EnumerateChildren("security.policy",
|
|
nsScriptSecurityManager::EnumeratePolicyCallback,
|
|
(void *) this);
|
|
|
|
if (!mPrincipals) {
|
|
mPrincipals = new nsSupportsHashtable(31);
|
|
if (!mPrincipals)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
EnumeratePrincipalsInfo info;
|
|
info.ht = mPrincipals;
|
|
info.prefs = mPrefs;
|
|
prefs->EnumerateChildren("security.principal",
|
|
nsScriptSecurityManager::EnumeratePrincipalsCallback,
|
|
(void *) &info);
|
|
|
|
prefs->RegisterCallback("security.principal", PrincipalPrefChanged, this);
|
|
|
|
return NS_OK;
|
|
}
|