b51a5f7784
javascript URL links. Two-part fix: moving the call to GetCurrentDocumentOwner in nsDocShell::LoadInternal to before the target docshell is called, and changing nsScriptSecurityManager::GetFunctionObjectPrincipal to only get the principal from the function object's scope chain if the function object's principal is the system principal. r=jst, sr=vidur, a=asa. git-svn-id: svn://10.0.0.236/trunk@96045 18797224-902f-48f8-a5cc-f745e15eee43
2181 lines
76 KiB
C++
2181 lines
76 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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* Mitch Stoltz
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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 "nsIScriptObjectPrincipal.h"
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#include "nsIURL.h"
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#include "nsIJARURI.h"
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#include "nspr.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 "nsAggregatePrincipal.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 "nsDOMCID.h"
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#include "jsdbgapi.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 "nsNetUtil.h"
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#include "nsDirectoryService.h"
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#include "nsDirectoryServiceDefs.h"
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#include "nsIFile.h"
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#include "nsIZipReader.h"
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#include "nsIJAR.h"
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#include "nsIPluginInstance.h"
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#include "nsIXPConnect.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsIDOMWindowInternal.h"
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#include "nscore.h"
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#include "nsIDocShell.h"
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#include "nsIDocShellTreeItem.h"
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#include "nsIPrompt.h"
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#include "nsIWindowWatcher.h"
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#include "nsIConsoleService.h"
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#include "nsISecurityCheckedComponent.h"
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#include "nsIPrefBranchInternal.h"
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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_PREFSERVICE_CID);
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static NS_DEFINE_CID(kCScriptNameSetRegistryCID,
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NS_SCRIPT_NAMESET_REGISTRY_CID);
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static NS_DEFINE_CID(kZipReaderCID, NS_ZIPREADER_CID);
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//-- All values of this enum except the first map to odd numbers so they can be
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// stored in a void* without being confused for a pointer value (which is always even).
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enum {
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SCRIPT_SECURITY_UNDEFINED_ACCESS = 0,
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SCRIPT_SECURITY_CAPABILITY_ONLY = 1,
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SCRIPT_SECURITY_SAME_ORIGIN_ACCESS = 3,
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SCRIPT_SECURITY_ALL_ACCESS = 5,
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SCRIPT_SECURITY_NO_ACCESS = 7
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};
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enum {
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CLASS_POLICY_DEFAULT = 1,
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CLASS_POLICY_SITE
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};
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// Result of this function should not be freed.
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static const PRUnichar *
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JSValIDToString(JSContext *aJSContext, const jsval idval) {
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JSString *str = JS_ValueToString(aJSContext, idval);
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if(!str)
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return nsnull;
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return NS_REINTERPRET_CAST(PRUnichar*, JS_GetStringChars(str));
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}
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// Convinience method to get the current js context stack.
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// Uses cached JSContextStack service instead of calling through
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// to the service manager.
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JSContext *
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nsScriptSecurityManager::GetCurrentContextQuick()
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{
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// Get JSContext from stack.
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nsresult rv;
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if (!mThreadJSContextStack) {
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mThreadJSContextStack = do_GetService("@mozilla.org/js/xpc/ContextStack;1", &rv);
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}
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if (!mThreadJSContextStack)
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return nsnull;
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JSContext *cx;
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if (NS_FAILED(mThreadJSContextStack->Peek(&cx)))
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return nsnull;
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return cx;
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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_IMPL_THREADSAFE_ISUPPORTS3(nsScriptSecurityManager,
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nsIScriptSecurityManager,
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nsIXPCSecurityManager,
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nsIObserver)
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///////////////////////////////////////////////////
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// Methods implementing nsIScriptSecurityManager //
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///////////////////////////////////////////////////
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///////////////// Security Checks /////////////////
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NS_IMETHODIMP
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nsScriptSecurityManager::CheckPropertyAccess(JSContext* aJSContext,
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JSObject* aJSObject,
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const char* aClassName,
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const char* aPropertyName,
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PRUint32 aAction)
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{
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return CheckPropertyAccessImpl(aAction, nsnull, aJSContext, aJSObject,
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nsnull, nsnull, nsnull, nsnull,
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aClassName, aPropertyName, nsnull);
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}
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NS_IMETHODIMP
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nsScriptSecurityManager::CheckConnect(JSContext* aJSContext,
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nsIURI* aTargetURI,
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const char* aClassName,
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const char* aPropertyName)
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{
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return CheckPropertyAccessImpl(nsIXPCSecurityManager::ACCESS_GET_PROPERTY, nsnull,
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aJSContext, nsnull, nsnull, aTargetURI,
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nsnull, nsnull, aClassName, aPropertyName, nsnull);
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}
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nsresult
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nsScriptSecurityManager::CheckPropertyAccessImpl(PRUint32 aAction,
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nsIXPCNativeCallContext* aCallContext,
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JSContext* aJSContext, JSObject* aJSObject,
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nsISupports* aObj, nsIURI* aTargetURI,
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nsIClassInfo* aClassInfo,
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jsval aName, const char* aClassName,
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const char* aProperty, void** aPolicy)
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{
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nsCOMPtr<nsIPrincipal> subjectPrincipal;
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if (NS_FAILED(GetSubjectPrincipal(aJSContext, getter_AddRefs(subjectPrincipal))))
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return NS_ERROR_FAILURE;
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PRBool equals;
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if (!subjectPrincipal ||
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NS_SUCCEEDED(subjectPrincipal->Equals(mSystemPrincipal, &equals)) && equals)
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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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#ifdef DEBUG_mstoltz
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if (aProperty)
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printf("### CheckPropertyAccess(%s.%s, %i) ", aClassName, aProperty, aAction);
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else
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{
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nsXPIDLCString classDescription;
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if (aClassInfo)
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aClassInfo->GetClassDescription(getter_Copies(classDescription));
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if(!classDescription)
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classDescription = "UnknownClass";
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nsCAutoString propertyStr(classDescription);
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propertyStr += '.';
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propertyStr.AppendWithConversion((PRUnichar*)JSValIDToString(aJSContext, aName));
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char* property;
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property = propertyStr.ToNewCString();
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printf("### CanAccess(%s, %i) ", property, aAction);
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PR_FREEIF(property);
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}
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#endif
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//-- Look up the policy for this property/method
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PRInt32 secLevel;
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nsCAutoString capability;
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if (aPolicy && *aPolicy)
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{
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#ifdef DEBUG_mstoltz
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printf("Cached ");
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#endif
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secLevel = (PRInt32)*aPolicy;
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}
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else
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{
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nsXPIDLCString className;
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nsCAutoString propertyName(aProperty);
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if (aClassName)
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className = aClassName;
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else
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//-- Get className and propertyName from aClassInfo and aName, repectively
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{
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if(aClassInfo)
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aClassInfo->GetClassDescription(getter_Copies(className));
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if (!className)
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className = "UnknownClass";
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propertyName.AssignWithConversion((PRUnichar*)JSValIDToString(aJSContext, aName));
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}
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// if (aPropertyStr), we were called from CheckPropertyAccess or checkConnect,
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// so we can assume this is a DOM class. Otherwise, we ask the ClassInfo.
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secLevel = GetSecurityLevel(aJSContext, subjectPrincipal,
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(aProperty || IsDOMClass(aClassInfo)),
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className, propertyName, aAction, capability, aPolicy);
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}
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nsresult rv;
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switch (secLevel)
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{
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case SCRIPT_SECURITY_ALL_ACCESS:
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#ifdef DEBUG_mstoltz
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printf("Level: AllAccess ");
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#endif
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rv = NS_OK;
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break;
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case SCRIPT_SECURITY_SAME_ORIGIN_ACCESS:
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{
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#ifdef DEBUG_mstoltz
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printf("Level: SameOrigin ");
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#endif
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nsCOMPtr<nsIPrincipal> objectPrincipal;
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if(aJSObject)
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{
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if (NS_FAILED(GetObjectPrincipal(aJSContext,
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NS_REINTERPRET_CAST(JSObject*, aJSObject),
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getter_AddRefs(objectPrincipal))))
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return NS_ERROR_FAILURE;
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}
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else if(aTargetURI)
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{
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if (NS_FAILED(GetCodebasePrincipal(aTargetURI, getter_AddRefs(objectPrincipal))))
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return NS_ERROR_FAILURE;
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}
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else
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{
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rv = NS_ERROR_DOM_SECURITY_ERR;
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break;
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}
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rv = CheckSameOrigin(aJSContext, subjectPrincipal, objectPrincipal,
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aAction == nsIXPCSecurityManager::ACCESS_SET_PROPERTY);
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break;
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}
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case SCRIPT_SECURITY_CAPABILITY_ONLY:
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{
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#ifdef DEBUG_mstoltz
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printf("Level: Capability ");
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#endif
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PRBool capabilityEnabled = PR_FALSE;
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rv = IsCapabilityEnabled(capability, &capabilityEnabled);
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if (NS_FAILED(rv) || !capabilityEnabled)
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rv = NS_ERROR_DOM_SECURITY_ERR;
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else
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rv = NS_OK;
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break;
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}
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default:
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// Default is no access
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#ifdef DEBUG_mstoltz
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printf("Level: NoAccess (%i)",secLevel);
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#endif
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rv = NS_ERROR_DOM_SECURITY_ERR;
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}
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if NS_SUCCEEDED(rv)
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{
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#ifdef DEBUG_mstoltz
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printf(" GRANTED.\n");
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#endif
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return rv;
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}
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//--See if the object advertises a non-default level of access
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// using nsISecurityCheckedComponent
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nsCOMPtr<nsISecurityCheckedComponent> checkedComponent =
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do_QueryInterface(aObj);
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nsXPIDLCString objectSecurityLevel;
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if (checkedComponent)
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{
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nsCOMPtr<nsIXPConnectWrappedNative> wrapper;
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nsCOMPtr<nsIInterfaceInfo> interfaceInfo;
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const nsIID* objIID;
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rv = aCallContext->GetCalleeWrapper(getter_AddRefs(wrapper));
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if (NS_SUCCEEDED(rv))
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rv = wrapper->FindInterfaceWithMember(aName, getter_AddRefs(interfaceInfo));
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if (NS_SUCCEEDED(rv))
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rv = interfaceInfo->GetIIDShared(&objIID);
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if (NS_SUCCEEDED(rv))
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{
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switch (aAction)
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{
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case nsIXPCSecurityManager::ACCESS_GET_PROPERTY:
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checkedComponent->CanGetProperty(objIID,
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JSValIDToString(aJSContext, aName),
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getter_Copies(objectSecurityLevel));
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break;
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case nsIXPCSecurityManager::ACCESS_SET_PROPERTY:
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checkedComponent->CanSetProperty(objIID,
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JSValIDToString(aJSContext, aName),
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getter_Copies(objectSecurityLevel));
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break;
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case nsIXPCSecurityManager::ACCESS_CALL_METHOD:
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checkedComponent->CanCallMethod(objIID,
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JSValIDToString(aJSContext, aName),
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getter_Copies(objectSecurityLevel));
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}
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}
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}
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rv = CheckXPCPermissions(aJSContext, aObj, objectSecurityLevel,
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"Permission denied to access property");
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#ifdef DEBUG_mstoltz
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if(NS_SUCCEEDED(rv))
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printf("CheckXPCPerms GRANTED.\n");
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else
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printf("CheckXPCPerms DENIED.\n");
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#endif
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return rv;
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}
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nsresult
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nsScriptSecurityManager::CheckSameOrigin(JSContext *aCx, nsIPrincipal* aSubject,
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nsIPrincipal* aObject, PRUint32 aAction)
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{
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/*
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** Get origin of subject and object and compare.
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*/
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if (aSubject == aObject)
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return NS_OK;
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PRBool isSameOrigin = PR_FALSE;
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if (NS_FAILED(aSubject->Equals(aObject, &isSameOrigin)))
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return NS_ERROR_FAILURE;
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if (isSameOrigin)
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return NS_OK;
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// Allow access to about:blank
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nsCOMPtr<nsICodebasePrincipal> objectCodebase = do_QueryInterface(aObject);
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if (objectCodebase)
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{
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nsXPIDLCString origin;
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if (NS_FAILED(objectCodebase->GetOrigin(getter_Copies(origin))))
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return NS_ERROR_FAILURE;
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if (nsCRT::strcasecmp(origin, "about:blank") == 0)
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return NS_OK;
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}
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/*
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** If we failed the origin tests it still might be the case that we
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** are a signed script and have permissions to do this operation.
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** Check for that here
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*/
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PRBool capabilityEnabled = PR_FALSE;
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const char* cap = aAction == nsIXPCSecurityManager::ACCESS_SET_PROPERTY ?
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"UniversalBrowserWrite" : "UniversalBrowserRead";
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if (NS_FAILED(IsCapabilityEnabled(cap, &capabilityEnabled)))
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return NS_ERROR_FAILURE;
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if (capabilityEnabled)
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return NS_OK;
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/*
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** Access tests failed, so now report error.
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*/
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return NS_ERROR_DOM_PROP_ACCESS_DENIED;
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}
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PRBool
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nsScriptSecurityManager::IsDOMClass(nsIClassInfo* aClassInfo)
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{
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if (!aClassInfo)
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return PR_FALSE;
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PRUint32 classFlags;
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nsresult rv = aClassInfo->GetFlags(&classFlags);
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return NS_SUCCEEDED(rv) && (classFlags & nsIClassInfo::DOM_OBJECT);
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}
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PRInt32
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nsScriptSecurityManager::GetSecurityLevel(JSContext* aJSContext,
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nsIPrincipal *principal,
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PRBool aIsDOM,
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const char* aClassName,
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const char* aPropertyName,
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PRUint32 aAction,
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nsCString &capability,
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void** aPolicy)
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{
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nsresult rv;
|
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PRInt32 secLevel = SCRIPT_SECURITY_NO_ACCESS;
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//-- See if we have a security policy for this class, otherwise use the default
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void* classPolicy = nsnull;
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if(mClassPolicies)
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{
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nsCStringKey classKey(aClassName);
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classPolicy = mClassPolicies->Get(&classKey);
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|
}
|
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if (classPolicy)
|
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{
|
|
//-- Look up the security policy for this property
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nsCAutoString prefName;
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if (NS_FAILED(GetPrefName(principal, aClassName, aPropertyName,
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classPolicy, prefName)))
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return SCRIPT_SECURITY_NO_ACCESS;
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char *secLevelString;
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rv = mSecurityPrefs->SecurityGetCharPref(prefName, &secLevelString);
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if (NS_FAILED(rv))
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{
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prefName += (aAction == nsIXPCSecurityManager::ACCESS_SET_PROPERTY ? ".set" : ".get");
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rv = mSecurityPrefs->SecurityGetCharPref(prefName, &secLevelString);
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}
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if (NS_FAILED(rv)) //-- No site policy for this property; look for a default policy
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{
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if (NS_FAILED(GetPrefName(principal, aClassName, aPropertyName,
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nsnull, prefName)))
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return SCRIPT_SECURITY_NO_ACCESS;
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rv = mSecurityPrefs->SecurityGetCharPref(prefName, &secLevelString);
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if (NS_FAILED(rv))
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{
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prefName += (aAction == nsIXPCSecurityManager::ACCESS_SET_PROPERTY ? ".set" : ".get");
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rv = mSecurityPrefs->SecurityGetCharPref(prefName, &secLevelString);
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}
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}
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if (NS_SUCCEEDED(rv) && secLevelString)
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|
{
|
|
if (PL_strcmp(secLevelString, "sameOrigin") == 0)
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secLevel = SCRIPT_SECURITY_SAME_ORIGIN_ACCESS;
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else if (PL_strcmp(secLevelString, "allAccess") == 0)
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secLevel = SCRIPT_SECURITY_ALL_ACCESS;
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else if (PL_strcmp(secLevelString, "noAccess") == 0)
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secLevel = SCRIPT_SECURITY_NO_ACCESS;
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|
else
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|
{
|
|
// string should be the name of a capability
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|
capability = secLevelString;
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|
secLevelString = nsnull;
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|
secLevel = SCRIPT_SECURITY_CAPABILITY_ONLY;
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|
}
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if (secLevelString)
|
|
PR_Free(secLevelString);
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return secLevel;
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}
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}
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|
//-- No policy for this property.
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|
// Use the default policy: sameOrigin for DOM, noAccess for everything else
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|
if(aIsDOM)
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|
secLevel = SCRIPT_SECURITY_SAME_ORIGIN_ACCESS;
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if (!classPolicy && aPolicy)
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|
//-- If there's no stored policy for this property,
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|
// we can annotate the class's aPolicy field and avoid checking
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// policy prefs next time.
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*aPolicy = (void*)secLevel;
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return secLevel;
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return SCRIPT_SECURITY_UNDEFINED_ACCESS;
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|
}
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|
|
struct nsDomainEntry
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|
{
|
|
nsDomainEntry(const char *anOrigin, const char *aPolicy,
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int aPolicyLength)
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|
: mNext(nsnull), mOrigin(anOrigin), mPolicy(aPolicy, aPolicyLength)
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{ }
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|
PRBool Matches(const char *anOrigin)
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|
{
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|
int len = nsCRT::strlen(anOrigin);
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|
int thisLen = mOrigin.Length();
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if (len < thisLen)
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return PR_FALSE;
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if (mOrigin.RFindChar(':', PR_FALSE, thisLen-1, 1) != -1)
|
|
//-- Policy applies to all URLs of this scheme, compare scheme only
|
|
return mOrigin.EqualsWithConversion(anOrigin, PR_TRUE, thisLen);
|
|
|
|
//-- Policy applies to a particular host; compare scheme://host.domain
|
|
if (!mOrigin.Equals(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;
|
|
};
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::GetPrefName(nsIPrincipal* principal,
|
|
const char* aClassName, const char* aPropertyName,
|
|
void* aClassPolicy, nsCString &result)
|
|
{
|
|
static const char *defaultStr = "default";
|
|
result = "capability.policy.";
|
|
if (aClassPolicy != (void*)CLASS_POLICY_SITE)
|
|
//-- No per-site policy; use the policy named "default"
|
|
result += defaultStr;
|
|
else //-- Look up the name of the relevant per-site policy
|
|
{
|
|
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 *colon = nsnull;
|
|
const char *p = s;
|
|
while (*p)
|
|
{
|
|
if (*p == '.')
|
|
{
|
|
nextToLastDot = lastDot;
|
|
lastDot = p;
|
|
}
|
|
if (!colon && *p == ':')
|
|
colon = p;
|
|
p++;
|
|
}
|
|
nsCStringKey key(nextToLastDot ? nextToLastDot+1 : s);
|
|
nsDomainEntry *de = (nsDomainEntry *) mOriginToPolicyMap->Get(&key);
|
|
if (!de)
|
|
{
|
|
nsCAutoString scheme(s, colon-s+1);
|
|
nsCStringKey schemeKey(scheme);
|
|
de = (nsDomainEntry *) mOriginToPolicyMap->Get(&schemeKey);
|
|
}
|
|
while (de)
|
|
{
|
|
if (de->Matches(s))
|
|
{
|
|
policy = &de->mPolicy;
|
|
break;
|
|
}
|
|
de = de->mNext;
|
|
}
|
|
}
|
|
if (policy)
|
|
result += *policy;
|
|
else
|
|
result += defaultStr;
|
|
}
|
|
}
|
|
result += '.';
|
|
result += aClassName;
|
|
result += '.';
|
|
result += aPropertyName;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CheckLoadURIFromScript(JSContext *cx, nsIURI *aURI)
|
|
{
|
|
// Get a context if necessary
|
|
if (!cx)
|
|
{
|
|
cx = GetCurrentContextQuick();
|
|
if (!cx)
|
|
return NS_OK; // No JS context, so allow the load
|
|
}
|
|
|
|
// Get principal of currently executing script.
|
|
nsCOMPtr<nsIPrincipal> principal;
|
|
if (NS_FAILED(GetSubjectPrincipal(cx, getter_AddRefs(principal))))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// Native code can load all URIs.
|
|
if (!principal)
|
|
return NS_OK;
|
|
|
|
// The system principal can load all URIs.
|
|
PRBool equals = PR_FALSE;
|
|
if (NS_FAILED(principal->Equals(mSystemPrincipal, &equals)))
|
|
return NS_ERROR_FAILURE;
|
|
if (equals)
|
|
return NS_OK;
|
|
|
|
// Otherwise, principal should have a codebase that we can use to
|
|
// do the remaining tests.
|
|
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;
|
|
if (NS_SUCCEEDED(CheckLoadURI(uri, aURI, nsIScriptSecurityManager::STANDARD )))
|
|
return NS_OK;
|
|
|
|
// See if we're attempting to load a file: URI. If so, let a
|
|
// UniversalFileRead capability trump the above check.
|
|
PRBool isFile = PR_FALSE;
|
|
PRBool isRes = PR_FALSE;
|
|
if (NS_FAILED(aURI->SchemeIs("file", &isFile)) ||
|
|
NS_FAILED(aURI->SchemeIs("resource", &isRes)))
|
|
return NS_ERROR_FAILURE;
|
|
if (isFile || isRes)
|
|
{
|
|
PRBool enabled;
|
|
if (NS_FAILED(IsCapabilityEnabled("UniversalFileRead", &enabled)))
|
|
return NS_ERROR_FAILURE;
|
|
if (enabled)
|
|
return NS_OK;
|
|
}
|
|
|
|
// Report error.
|
|
nsXPIDLCString spec;
|
|
if (NS_FAILED(aURI->GetSpec(getter_Copies(spec))))
|
|
return NS_ERROR_FAILURE;
|
|
JS_ReportError(cx, "illegal URL method '%s'", (const char *)spec);
|
|
return NS_ERROR_DOM_BAD_URI;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CheckLoadURI(nsIURI *aSourceURI, nsIURI *aTargetURI,
|
|
PRUint32 aFlags)
|
|
{
|
|
nsCOMPtr<nsIJARURI> jarURI;
|
|
nsCOMPtr<nsIURI> sourceUri(aSourceURI);
|
|
while((jarURI = do_QueryInterface(sourceUri)))
|
|
jarURI->GetJARFile(getter_AddRefs(sourceUri));
|
|
if (!sourceUri) return NS_ERROR_FAILURE;
|
|
|
|
nsXPIDLCString sourceScheme;
|
|
if (NS_FAILED(sourceUri->GetScheme(getter_Copies(sourceScheme))))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// Some loads are not allowed from mail/news messages
|
|
if ((aFlags & nsIScriptSecurityManager::DISALLOW_FROM_MAIL) &&
|
|
(nsCRT::strcasecmp(sourceScheme, "mailbox") == 0 ||
|
|
nsCRT::strcasecmp(sourceScheme, "imap") == 0 ||
|
|
nsCRT::strcasecmp(sourceScheme, "news") == 0))
|
|
{
|
|
return NS_ERROR_DOM_BAD_URI;
|
|
}
|
|
|
|
nsCOMPtr<nsIURI> targetUri(aTargetURI);
|
|
while((jarURI = do_QueryInterface(targetUri)))
|
|
jarURI->GetJARFile(getter_AddRefs(targetUri));
|
|
if (!targetUri) return NS_ERROR_FAILURE;
|
|
|
|
nsXPIDLCString targetScheme;
|
|
if (NS_FAILED(targetUri->GetScheme(getter_Copies(targetScheme))))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
if (nsCRT::strcasecmp(targetScheme, sourceScheme) == 0)
|
|
{
|
|
// every scheme can access another URI from the same scheme
|
|
return NS_OK;
|
|
}
|
|
|
|
enum Action { AllowProtocol, DenyProtocol, PrefControlled, ChromeProtocol, AboutProtocol };
|
|
static const struct {
|
|
const char *name;
|
|
Action action;
|
|
} protocolList[] = {
|
|
//-- Keep the most commonly used protocols at the top of the list
|
|
// to increase performance
|
|
{ "http", AllowProtocol },
|
|
{ "file", PrefControlled },
|
|
{ "https", AllowProtocol },
|
|
{ "chrome", ChromeProtocol },
|
|
{ "mailbox", DenyProtocol },
|
|
{ "pop", AllowProtocol },
|
|
{ "imap", DenyProtocol },
|
|
{ "pop3", DenyProtocol },
|
|
{ "news", AllowProtocol },
|
|
{ "javascript", AllowProtocol },
|
|
{ "ftp", AllowProtocol },
|
|
{ "about", AboutProtocol },
|
|
{ "mailto", AllowProtocol },
|
|
{ "aim", AllowProtocol },
|
|
{ "data", AllowProtocol },
|
|
{ "keyword", DenyProtocol },
|
|
{ "resource", ChromeProtocol },
|
|
{ "gopher", AllowProtocol },
|
|
{ "datetime", DenyProtocol },
|
|
{ "finger", AllowProtocol },
|
|
{ "res", DenyProtocol }
|
|
};
|
|
|
|
nsXPIDLCString targetSpec;
|
|
const char* targetPage;
|
|
for (unsigned i=0; i < sizeof(protocolList)/sizeof(protocolList[0]); i++) {
|
|
if (nsCRT::strcasecmp(targetScheme, protocolList[i].name) == 0) {
|
|
PRBool doCheck = PR_FALSE;
|
|
switch (protocolList[i].action) {
|
|
case AllowProtocol:
|
|
// everyone can access these schemes.
|
|
return NS_OK;
|
|
case PrefControlled:
|
|
// Allow access if pref is false
|
|
mPrefs->GetBoolPref("security.checkloaduri", &doCheck);
|
|
return doCheck ? ReportErrorToConsole(aTargetURI) : NS_OK;
|
|
case ChromeProtocol:
|
|
if (aFlags & nsIScriptSecurityManager::ALLOW_CHROME)
|
|
return NS_OK;
|
|
// resource: and chrome: are equivalent, securitywise
|
|
if ((PL_strcmp(sourceScheme, "chrome") == 0) ||
|
|
(PL_strcmp(sourceScheme, "resource") == 0))
|
|
return NS_OK;
|
|
return ReportErrorToConsole(aTargetURI);
|
|
case AboutProtocol:
|
|
// Allow loading about:blank, otherwise deny
|
|
if(NS_FAILED(targetUri->GetSpec(getter_Copies(targetSpec))))
|
|
return NS_ERROR_FAILURE;
|
|
targetPage = targetSpec.get() + sizeof("about:") - 1;
|
|
return (PL_strcmp(targetPage, "blank") == 0) ||
|
|
(PL_strcmp(targetPage, "") == 0) ||
|
|
(PL_strcmp(targetPage, "mozilla") == 0) ||
|
|
(PL_strcmp(targetPage, "credits") == 0) ?
|
|
NS_OK : ReportErrorToConsole(aTargetURI);
|
|
case DenyProtocol:
|
|
// Deny access
|
|
return ReportErrorToConsole(aTargetURI);
|
|
}
|
|
}
|
|
}
|
|
|
|
// If we reach here, we have an unknown protocol. Warn, but allow.
|
|
// This is risky from a security standpoint, but allows flexibility
|
|
// in installing new protocol handlers after initial ship.
|
|
NS_WARN_IF_FALSE(PR_FALSE, "unknown protocol in nsScriptSecurityManager::CheckLoadURI");
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::ReportErrorToConsole(nsIURI* aTarget)
|
|
{
|
|
nsXPIDLCString spec;
|
|
nsresult rv = aTarget->GetSpec(getter_Copies(spec));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
nsAutoString msg;
|
|
msg.AssignWithConversion("The link to ");
|
|
msg.AppendWithConversion(spec);
|
|
msg.AppendWithConversion(" was blocked by the security manager.\nRemote content may not link to local content.");
|
|
// Report error in JS console
|
|
nsCOMPtr<nsIConsoleService> console(do_GetService("@mozilla.org/consoleservice;1"));
|
|
if (console)
|
|
{
|
|
PRUnichar* messageUni = msg.ToNewUnicode();
|
|
if (!messageUni)
|
|
return NS_ERROR_FAILURE;
|
|
console->LogStringMessage(messageUni);
|
|
nsMemory::Free(messageUni);
|
|
}
|
|
#ifdef DEBUG
|
|
char* messageCstr = msg.ToNewCString();
|
|
if (!messageCstr)
|
|
return NS_ERROR_FAILURE;
|
|
fprintf(stderr, "%s\n", messageCstr);
|
|
PR_Free(messageCstr);
|
|
#endif
|
|
//-- Always returns an error
|
|
return NS_ERROR_DOM_BAD_URI;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CheckLoadURIStr(const char* aSourceURIStr, const char* aTargetURIStr,
|
|
PRUint32 aFlags)
|
|
{
|
|
nsCOMPtr<nsIURI> source;
|
|
nsresult rv = NS_NewURI(getter_AddRefs(source), aSourceURIStr, nsnull);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
nsCOMPtr<nsIURI> target;
|
|
rv = NS_NewURI(getter_AddRefs(target), aTargetURIStr, nsnull);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
return CheckLoadURI(source, target, aFlags);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CheckFunctionAccess(JSContext *aCx, void *aFunObj,
|
|
void *aTargetObj)
|
|
{
|
|
//-- This check is called for event handlers
|
|
nsCOMPtr<nsIPrincipal> subject;
|
|
nsresult rv = GetFunctionObjectPrincipal(aCx, (JSObject *)aFunObj,
|
|
getter_AddRefs(subject));
|
|
//-- If subject is null, get a principal from the function object's scope.
|
|
if (NS_SUCCEEDED(rv) && !subject)
|
|
rv = GetObjectPrincipal(aCx, (JSObject*)aFunObj, getter_AddRefs(subject));
|
|
|
|
if (NS_FAILED(rv)) return rv;
|
|
if (!subject) return NS_ERROR_FAILURE;
|
|
|
|
|
|
PRBool isSystem;
|
|
if (NS_SUCCEEDED(subject->Equals(mSystemPrincipal, &isSystem)) && isSystem)
|
|
// This is the system principal: just allow access
|
|
return NS_OK;
|
|
|
|
// Check if the principal the function was compiled under is
|
|
// allowed to execute scripts.
|
|
|
|
PRBool result;
|
|
rv = CanExecuteScripts(aCx, subject, &result);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (!result)
|
|
return NS_ERROR_DOM_SECURITY_ERR;
|
|
|
|
/*
|
|
** Get origin of subject and object and compare.
|
|
*/
|
|
JSObject* obj = (JSObject*)aTargetObj;
|
|
nsCOMPtr<nsIPrincipal> object;
|
|
if (NS_FAILED(GetObjectPrincipal(aCx, obj, getter_AddRefs(object))))
|
|
return NS_ERROR_FAILURE;
|
|
if (subject == object)
|
|
return NS_OK;
|
|
|
|
PRBool isSameOrigin = PR_FALSE;
|
|
if (NS_FAILED(subject->Equals(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::strcasecmp(origin, "about:blank") == 0)
|
|
return NS_OK;
|
|
}
|
|
|
|
/*
|
|
** Access tests failed. Fail silently without a JS exception.
|
|
*/
|
|
return NS_ERROR_DOM_SECURITY_ERR;
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::GetRootDocShell(JSContext *cx, nsIDocShell **result)
|
|
{
|
|
nsresult rv;
|
|
*result = nsnull;
|
|
nsCOMPtr<nsIDocShell> docshell;
|
|
nsCOMPtr<nsIScriptContext> scriptContext = (nsIScriptContext*)JS_GetContextPrivate(cx);
|
|
if (!scriptContext) return NS_ERROR_FAILURE;
|
|
nsCOMPtr<nsIScriptGlobalObject> globalObject(dont_AddRef(scriptContext->GetGlobalObject()));
|
|
if (!globalObject) return NS_ERROR_FAILURE;
|
|
rv = globalObject->GetDocShell(getter_AddRefs(docshell));
|
|
if (NS_FAILED(rv)) return rv;
|
|
nsCOMPtr<nsIDocShellTreeItem> docshellTreeItem = do_QueryInterface(docshell, &rv);
|
|
if (NS_FAILED(rv)) return rv;
|
|
nsCOMPtr<nsIDocShellTreeItem> rootItem;
|
|
rv = docshellTreeItem->GetRootTreeItem(getter_AddRefs(rootItem));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
return rootItem->QueryInterface(NS_GET_IID(nsIDocShell), (void**)result);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CanExecuteScripts(JSContext* cx,
|
|
nsIPrincipal *principal,
|
|
PRBool *result)
|
|
{
|
|
if (principal == mSystemPrincipal)
|
|
{
|
|
// Even if JavaScript is disabled, we must still execute system scripts
|
|
*result = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
|
|
//-- See if the current window allows JS execution
|
|
nsCOMPtr<nsIDocShell> docshell;
|
|
nsresult rv;
|
|
rv = GetRootDocShell(cx, getter_AddRefs(docshell));
|
|
if (NS_SUCCEEDED(rv))
|
|
{
|
|
rv = docshell->GetAllowJavascript(result);
|
|
if (NS_FAILED(rv)) return rv;
|
|
if (!*result)
|
|
return NS_OK;
|
|
}
|
|
|
|
/*
|
|
There used to be a per-domain policy here, but that functionality
|
|
will hopefully be taken over by nsIContentPolicy. Meantime, it's gone.
|
|
*/
|
|
|
|
if ((mIsJavaScriptEnabled != mIsMailJavaScriptEnabled) && docshell)
|
|
{
|
|
// Is this script running from mail?
|
|
PRUint32 appType;
|
|
rv = docshell->GetAppType(&appType);
|
|
if (NS_FAILED(rv)) return rv;
|
|
if (appType == nsIDocShell::APP_TYPE_MAIL)
|
|
{
|
|
*result = mIsMailJavaScriptEnabled;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
*result = mIsJavaScriptEnabled;
|
|
return NS_OK;
|
|
}
|
|
|
|
///////////////// Principals ///////////////////////
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::GetSubjectPrincipal(nsIPrincipal **result)
|
|
{
|
|
JSContext *cx = GetCurrentContextQuick();
|
|
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* aCertID,
|
|
nsIPrincipal **result)
|
|
{
|
|
nsresult rv;
|
|
//-- Create a certificate principal
|
|
nsCertificatePrincipal *certificate = new nsCertificatePrincipal();
|
|
if (!certificate)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(certificate);
|
|
if (NS_FAILED(certificate->Init(aCertID)))
|
|
{
|
|
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> fromTable = (nsIPrincipal *) mPrincipals->Get(&key);
|
|
if (fromTable)
|
|
principal = fromTable;
|
|
}
|
|
|
|
//-- Bundle this certificate principal into an aggregate principal
|
|
nsAggregatePrincipal* agg = new nsAggregatePrincipal();
|
|
if (!agg) return NS_ERROR_OUT_OF_MEMORY;
|
|
rv = agg->SetCertificate(principal);
|
|
if (NS_FAILED(rv)) return rv;
|
|
principal = do_QueryInterface((nsBasePrincipal*)agg, &rv);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
*result = principal;
|
|
NS_ADDREF(*result);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::CreateCodebasePrincipal(nsIURI* aURI, nsIPrincipal **result)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
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;
|
|
}
|
|
rv = CallQueryInterface((nsBasePrincipal*)codebase, result);
|
|
NS_RELEASE(codebase);
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::GetCodebasePrincipal(nsIURI *aURI,
|
|
nsIPrincipal **result)
|
|
{
|
|
nsresult rv;
|
|
nsCOMPtr<nsIPrincipal> principal;
|
|
rv = CreateCodebasePrincipal(aURI, getter_AddRefs(principal));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
if (mPrincipals)
|
|
{
|
|
//-- Check to see if we already have this principal.
|
|
nsIPrincipalKey key(principal);
|
|
nsCOMPtr<nsIPrincipal> fromTable = (nsIPrincipal *) mPrincipals->Get(&key);
|
|
if (fromTable)
|
|
principal = fromTable;
|
|
else //-- Check to see if we have a more general principal
|
|
{
|
|
nsCOMPtr<nsICodebasePrincipal> codebasePrin = do_QueryInterface(principal);
|
|
nsXPIDLCString originUrl;
|
|
rv = codebasePrin->GetOrigin(getter_Copies(originUrl));
|
|
if (NS_FAILED(rv)) return rv;
|
|
nsCOMPtr<nsIURI> newURI;
|
|
rv = NS_NewURI(getter_AddRefs(newURI), originUrl, nsnull);
|
|
if (NS_FAILED(rv)) return rv;
|
|
nsCOMPtr<nsIPrincipal> principal2;
|
|
rv = CreateCodebasePrincipal(newURI, getter_AddRefs(principal2));
|
|
if (NS_FAILED(rv)) return rv;
|
|
nsIPrincipalKey key2(principal2);
|
|
fromTable = (nsIPrincipal *) mPrincipals->Get(&key2);
|
|
if (fromTable)
|
|
principal = fromTable;
|
|
}
|
|
}
|
|
|
|
//-- Bundle this codebase principal into an aggregate principal
|
|
nsAggregatePrincipal* agg = new nsAggregatePrincipal();
|
|
if (!agg) return NS_ERROR_OUT_OF_MEMORY;
|
|
rv = agg->SetCodebase(principal);
|
|
if (NS_FAILED(rv)) return rv;
|
|
principal = do_QueryInterface((nsBasePrincipal*)agg, &rv);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
*result = principal;
|
|
NS_ADDREF(*result);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::GetScriptPrincipal(JSContext *cx,
|
|
JSScript *script,
|
|
nsIPrincipal **result)
|
|
{
|
|
if (!script)
|
|
{
|
|
*result = nsnull;
|
|
return NS_OK;
|
|
}
|
|
JSPrincipals *jsp = JS_GetScriptPrincipals(cx, script);
|
|
if (!jsp) {
|
|
// Script didn't have principals -- shouldn't happen.
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsJSPrincipals *nsJSPrin = NS_STATIC_CAST(nsJSPrincipals *, jsp);
|
|
*result = nsJSPrin->nsIPrincipalPtr;
|
|
if (!*result)
|
|
return NS_ERROR_FAILURE;
|
|
NS_ADDREF(*result);
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::GetFunctionObjectPrincipal(JSContext *cx,
|
|
JSObject *obj,
|
|
nsIPrincipal **result)
|
|
{
|
|
JSFunction *fun = (JSFunction *) JS_GetPrivate(cx, obj);
|
|
JSScript *script = JS_GetFunctionScript(cx, fun);
|
|
|
|
nsCOMPtr<nsIPrincipal> scriptPrincipal;
|
|
if (script)
|
|
if (NS_FAILED(GetScriptPrincipal(cx, script, getter_AddRefs(scriptPrincipal))))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
if (script && (JS_GetFunctionObject(fun) != obj) &&
|
|
(scriptPrincipal.get() == mSystemPrincipal))
|
|
{
|
|
// Function is brutally-shared chrome. For this case only,
|
|
// get a principal from the object's scope instead of the
|
|
// principal compiled into the function.
|
|
return GetObjectPrincipal(cx, obj, result);
|
|
}
|
|
|
|
*result = scriptPrincipal.get();
|
|
NS_IF_ADDREF(*result);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::GetFramePrincipal(JSContext *cx,
|
|
JSStackFrame *fp,
|
|
nsIPrincipal **result)
|
|
{
|
|
JSObject *obj = JS_GetFrameFunctionObject(cx, fp);
|
|
if (!obj)
|
|
{
|
|
// Must be in a top-level script. Get principal from the script.
|
|
JSScript *script = JS_GetFrameScript(cx, fp);
|
|
return GetScriptPrincipal(cx, script, result);
|
|
}
|
|
return GetFunctionObjectPrincipal(cx, obj, result);
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::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
|
|
for (fp = JS_FrameIterator(cx, &fp); fp; fp = JS_FrameIterator(cx, &fp))
|
|
{
|
|
if (NS_FAILED(GetFramePrincipal(cx, fp, result)))
|
|
return NS_ERROR_FAILURE;
|
|
if (*result)
|
|
{
|
|
*frameResult = fp;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
//-- If there's no principal on the stack, look at the global object
|
|
// and return the innermost frame for annotations.
|
|
if (cx)
|
|
{
|
|
nsCOMPtr<nsIScriptContext> scriptContext =
|
|
NS_REINTERPRET_CAST(nsIScriptContext*,JS_GetContextPrivate(cx));
|
|
if (scriptContext)
|
|
{
|
|
nsCOMPtr<nsIScriptGlobalObject> global = scriptContext->GetGlobalObject();
|
|
NS_ENSURE_TRUE(global, NS_ERROR_FAILURE);
|
|
nsCOMPtr<nsIScriptObjectPrincipal> globalData = do_QueryInterface(global);
|
|
NS_ENSURE_TRUE(globalData, NS_ERROR_FAILURE);
|
|
globalData->GetPrincipal(result);
|
|
if (*result)
|
|
{
|
|
JSStackFrame *inner = nsnull;
|
|
*frameResult = JS_FrameIterator(cx, &inner);
|
|
return NS_OK;
|
|
}
|
|
}
|
|
}
|
|
|
|
*result = nsnull;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::GetSubjectPrincipal(JSContext *cx,
|
|
nsIPrincipal **result)
|
|
{
|
|
JSStackFrame *fp;
|
|
return GetPrincipalAndFrame(cx, result, &fp);
|
|
}
|
|
|
|
nsresult
|
|
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)
|
|
{
|
|
nsCOMPtr<nsISupports> supports = (nsISupports *) JS_GetPrivate(aCx, parent);
|
|
nsCOMPtr<nsIScriptObjectPrincipal> objPrin =
|
|
do_QueryInterface(supports);
|
|
if (!objPrin)
|
|
{
|
|
/*
|
|
* If it's a wrapped native, check the underlying native
|
|
* instead.
|
|
*/
|
|
nsCOMPtr<nsIXPConnectWrappedNative> xpcNative =
|
|
do_QueryInterface(supports);
|
|
if (xpcNative)
|
|
xpcNative->GetNative(getter_AddRefs(supports));
|
|
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;
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::SavePrincipal(nsIPrincipal* aToSave)
|
|
{
|
|
NS_ASSERTION(mSecurityPrefs, "nsScriptSecurityManager::mSecurityPrefs not initialized");
|
|
nsresult rv;
|
|
nsCOMPtr<nsIPrincipal> persistent = aToSave;
|
|
nsCOMPtr<nsIAggregatePrincipal> aggregate = do_QueryInterface(aToSave, &rv);
|
|
if (NS_SUCCEEDED(rv))
|
|
if (NS_FAILED(aggregate->GetPrimaryChild(getter_AddRefs(persistent))))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
//-- Save to mPrincipals
|
|
if (!mPrincipals)
|
|
{
|
|
mPrincipals = new nsSupportsHashtable(31);
|
|
if (!mPrincipals)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
nsIPrincipalKey key(persistent);
|
|
mPrincipals->Put(&key, persistent);
|
|
|
|
//-- Save to prefs
|
|
nsXPIDLCString idPrefName;
|
|
nsXPIDLCString id;
|
|
nsXPIDLCString grantedList;
|
|
nsXPIDLCString deniedList;
|
|
rv = persistent->GetPreferences(getter_Copies(idPrefName),
|
|
getter_Copies(id),
|
|
getter_Copies(grantedList),
|
|
getter_Copies(deniedList));
|
|
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
|
|
|
|
nsXPIDLCString grantedPrefName;
|
|
nsXPIDLCString deniedPrefName;
|
|
rv = PrincipalPrefNames( idPrefName,
|
|
getter_Copies(grantedPrefName),
|
|
getter_Copies(deniedPrefName) );
|
|
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
|
|
|
|
mIsWritingPrefs = PR_TRUE;
|
|
if (grantedList)
|
|
mSecurityPrefs->SecuritySetCharPref(grantedPrefName, grantedList);
|
|
else
|
|
mSecurityPrefs->SecurityClearUserPref(grantedPrefName);
|
|
|
|
if (deniedList)
|
|
mSecurityPrefs->SecuritySetCharPref(deniedPrefName, deniedList);
|
|
else
|
|
mSecurityPrefs->SecurityClearUserPref(deniedPrefName);
|
|
|
|
if (grantedList || deniedList)
|
|
mSecurityPrefs->SecuritySetCharPref(idPrefName, id);
|
|
else
|
|
mSecurityPrefs->SecurityClearUserPref(idPrefName);
|
|
|
|
mIsWritingPrefs = PR_FALSE;
|
|
return mPrefService->SavePrefFile(nsnull);
|
|
}
|
|
|
|
///////////////// Capabilities API /////////////////////
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::IsCapabilityEnabled(const char *capability,
|
|
PRBool *result)
|
|
{
|
|
nsresult rv;
|
|
JSStackFrame *fp = nsnull;
|
|
JSContext *cx = GetCurrentContextQuick();
|
|
fp = cx ? JS_FrameIterator(cx, &fp) : nsnull;
|
|
if (!fp) {
|
|
// No script code on stack. Allow execution.
|
|
*result = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
do
|
|
{
|
|
nsCOMPtr<nsIPrincipal> principal;
|
|
if (NS_FAILED(GetFramePrincipal(cx, fp, getter_AddRefs(principal))))
|
|
return NS_ERROR_FAILURE;
|
|
if (!principal)
|
|
continue;
|
|
|
|
// First check if the principal is even able to enable the
|
|
// given capability. If not, don't look any further.
|
|
PRInt16 canEnable;
|
|
rv = principal->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 = principal->IsCapabilityEnabled(capability, annotation,
|
|
result);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
if (*result)
|
|
return NS_OK;
|
|
} while ((fp = JS_FrameIterator(cx, &fp)) != nsnull);
|
|
*result = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
#define PROPERTIES_URL "chrome://communicator/locale/security/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;
|
|
}
|
|
nsIStringBundle *bundle = nsnull;
|
|
ret = pStringService->CreateBundle(spec, &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;
|
|
strtmp.AssignWithConversion(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(JSContext* cx, const PRUnichar *szMessage, const PRUnichar *szCheckMessage,
|
|
PRBool *checkValue)
|
|
{
|
|
nsresult res;
|
|
//-- Get a prompter for the current window.
|
|
nsCOMPtr<nsIPrompt> prompter;
|
|
nsCOMPtr<nsIScriptContext> scriptContext = (nsIScriptContext*)JS_GetContextPrivate(cx);
|
|
if (scriptContext)
|
|
{
|
|
nsCOMPtr<nsIScriptGlobalObject> globalObject(dont_AddRef(scriptContext->GetGlobalObject()));
|
|
NS_ASSERTION(globalObject, "script context has no global object");
|
|
nsCOMPtr<nsIDOMWindowInternal> domWin = do_QueryInterface(globalObject);
|
|
if (domWin)
|
|
domWin->GetPrompter(getter_AddRefs(prompter));
|
|
}
|
|
|
|
if (!prompter)
|
|
{
|
|
//-- Couldn't get prompter from the current window, so get the prompt service.
|
|
nsCOMPtr<nsIWindowWatcher> wwatch(do_GetService("@mozilla.org/embedcomp/window-watcher;1"));
|
|
if (wwatch)
|
|
wwatch->GetNewPrompter(0, getter_AddRefs(prompter));
|
|
}
|
|
if (!prompter)
|
|
{
|
|
*checkValue = 0;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRInt32 buttonPressed = 1; /* in case user exits dialog by clicking X */
|
|
nsAutoString dialogTitle;
|
|
if (NS_FAILED(res = Localize("Titleline", dialogTitle)))
|
|
return PR_FALSE;
|
|
|
|
res = prompter->ConfirmEx(dialogTitle.GetUnicode(), szMessage,
|
|
(nsIPrompt::BUTTON_TITLE_YES * nsIPrompt::BUTTON_POS_0) +
|
|
(nsIPrompt::BUTTON_TITLE_NO * nsIPrompt::BUTTON_POS_1),
|
|
nsnull, nsnull, nsnull, szCheckMessage, checkValue, &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);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::RequestCapability(nsIPrincipal* aPrincipal,
|
|
const char *capability, PRInt16* canEnable)
|
|
{
|
|
if (NS_FAILED(aPrincipal->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(aPrincipal->ToUserVisibleString(&source)))
|
|
return NS_ERROR_FAILURE;
|
|
PRUnichar *message = nsTextFormatter::smprintf(query.GetUnicode(), source);
|
|
Recycle(source);
|
|
JSContext *cx = GetCurrentContextQuick();
|
|
if (CheckConfirmDialog(cx, message, check.GetUnicode(), &remember))
|
|
*canEnable = nsIPrincipal::ENABLE_GRANTED;
|
|
else
|
|
*canEnable = nsIPrincipal::ENABLE_DENIED;
|
|
PR_FREEIF(message);
|
|
if (remember)
|
|
{
|
|
//-- Save principal to prefs and to mPrincipals
|
|
if (NS_FAILED(aPrincipal->SetCanEnableCapability(capability, *canEnable)))
|
|
return NS_ERROR_FAILURE;
|
|
if (NS_FAILED(SavePrincipal(aPrincipal)))
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::EnableCapability(const char *capability)
|
|
{
|
|
JSContext *cx = GetCurrentContextQuick();
|
|
JSStackFrame *fp;
|
|
|
|
//Error checks for capability string length (200)
|
|
if(PL_strlen(capability)>200)
|
|
{
|
|
static const char msg[] = "Capability name too long";
|
|
JS_SetPendingException(cx, STRING_TO_JSVAL(JS_NewStringCopyZ(cx, msg)));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
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(RequestCapability(principal, capability, &canEnable)))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
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 = GetCurrentContextQuick();
|
|
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 = GetCurrentContextQuick();
|
|
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;
|
|
}
|
|
|
|
//////////////// Master Certificate Functions ///////////////////////////////////////
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::SetCanEnableCapability(const char* certificateID,
|
|
const char* capability,
|
|
PRInt16 canEnable)
|
|
{
|
|
nsresult rv;
|
|
nsCOMPtr<nsIPrincipal> subjectPrincipal;
|
|
rv = GetSubjectPrincipal(getter_AddRefs(subjectPrincipal));
|
|
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
|
|
|
|
//-- Get the system certificate
|
|
if (!mSystemCertificate)
|
|
{
|
|
nsCOMPtr<nsIFile> systemCertFile;
|
|
NS_WITH_SERVICE(nsIProperties, directoryService, NS_DIRECTORY_SERVICE_CONTRACTID, &rv);
|
|
if (!directoryService) return NS_ERROR_FAILURE;
|
|
rv = directoryService->Get(NS_XPCOM_CURRENT_PROCESS_DIR, NS_GET_IID(nsIFile),
|
|
getter_AddRefs(systemCertFile));
|
|
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
|
|
#ifdef XP_MAC
|
|
// On Mac, this file will be located in the Essential Files folder
|
|
systemCertFile->Append("Essential Files");
|
|
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
|
|
#endif
|
|
systemCertFile->Append("systemSignature.jar");
|
|
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
|
|
nsCOMPtr<nsIZipReader> systemCertZip;
|
|
rv = nsComponentManager::CreateInstance(kZipReaderCID, nsnull,
|
|
NS_GET_IID(nsIZipReader),
|
|
getter_AddRefs(systemCertZip));
|
|
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
|
|
systemCertZip->Init(systemCertFile);
|
|
rv = systemCertZip->Open();
|
|
if (NS_SUCCEEDED(rv))
|
|
{
|
|
nsCOMPtr<nsIJAR> systemCertJar = do_QueryInterface(systemCertZip, &rv);
|
|
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
|
|
rv = systemCertJar->GetCertificatePrincipal(nsnull,
|
|
getter_AddRefs(mSystemCertificate));
|
|
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
//-- Make sure the caller's principal is the system certificate
|
|
PRBool isEqual = PR_FALSE;
|
|
if (mSystemCertificate)
|
|
{
|
|
rv = mSystemCertificate->Equals(subjectPrincipal, &isEqual);
|
|
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
|
|
}
|
|
if (!isEqual)
|
|
{
|
|
JSContext* cx = GetCurrentContextQuick();
|
|
if (!cx) return NS_ERROR_FAILURE;
|
|
static const char msg1[] = "Only code signed by the system certificate may call SetCanEnableCapability or Invalidate";
|
|
static const char msg2[] = "Attempt to call SetCanEnableCapability or Invalidate when no system certificate has been established";
|
|
JS_SetPendingException(cx, STRING_TO_JSVAL(JS_NewStringCopyZ(cx,
|
|
mSystemCertificate ? msg1 : msg2)));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
//-- Get the target principal
|
|
nsCOMPtr<nsIPrincipal> objectPrincipal;
|
|
rv = GetCertificatePrincipal(certificateID, getter_AddRefs(objectPrincipal));
|
|
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
|
|
rv = objectPrincipal->SetCanEnableCapability(capability, canEnable);
|
|
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
|
|
return SavePrincipal(objectPrincipal);
|
|
}
|
|
|
|
////////////////////////////////////////////////
|
|
// Methods implementing nsIXPCSecurityManager //
|
|
////////////////////////////////////////////////
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CanCreateWrapper(JSContext *aJSContext,
|
|
const nsIID &aIID,
|
|
nsISupports *aObj,
|
|
nsIClassInfo *aClassInfo,
|
|
void **aPolicy)
|
|
{
|
|
#if 0
|
|
char* iidStr = aIID.ToString();
|
|
printf("### CanCreateWrapper(%s) ", iidStr);
|
|
PR_FREEIF(iidStr);
|
|
#endif
|
|
// XXX Special case for nsIXPCException ?
|
|
if (IsDOMClass(aClassInfo))
|
|
{
|
|
#if 0
|
|
printf("DOM class - GRANTED.\n");
|
|
#endif
|
|
return NS_OK;
|
|
}
|
|
|
|
//--See if the object advertises a non-default level of access
|
|
// using nsISecurityCheckedComponent
|
|
nsCOMPtr<nsISecurityCheckedComponent> checkedComponent =
|
|
do_QueryInterface(aObj);
|
|
|
|
nsXPIDLCString objectSecurityLevel;
|
|
if (checkedComponent)
|
|
checkedComponent->CanCreateWrapper((nsIID *)&aIID, getter_Copies(objectSecurityLevel));
|
|
|
|
return CheckXPCPermissions(aJSContext, aObj, objectSecurityLevel,
|
|
"Permission denied to create wrapper for object");
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CanCreateInstance(JSContext *aJSContext,
|
|
const nsCID &aCID)
|
|
{
|
|
//XXX Special cases needed: exceptions?
|
|
#if 0
|
|
char* cidStr = aCID.ToString();
|
|
printf("### CanCreateInstance(%s) ", cidStr);
|
|
PR_FREEIF(cidStr);
|
|
#endif
|
|
|
|
return CheckXPCPermissions(aJSContext, nsnull, nsnull,
|
|
"Permission denied to create instance of class");
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CanGetService(JSContext *aJSContext,
|
|
const nsCID &aCID)
|
|
{
|
|
#if 0
|
|
char* cidStr = aCID.ToString();
|
|
printf("### CanGetService(%s) ", cidStr);
|
|
PR_FREEIF(cidStr);
|
|
#endif
|
|
|
|
return CheckXPCPermissions(aJSContext, nsnull, nsnull,
|
|
"Permission denied to get service");
|
|
}
|
|
|
|
/* void CanAccess (in PRUint32 aAction, in nsIXPCNativeCallContext aCallContext, in JSContextPtr aJSContext, in JSObjectPtr aJSObject, in nsISupports aObj, in nsIClassInfo aClassInfo, in JSVal aName, inout voidPtr aPolicy); */
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::CanAccess(PRUint32 aAction,
|
|
nsIXPCNativeCallContext* aCallContext,
|
|
JSContext* aJSContext,
|
|
JSObject* aJSObject,
|
|
nsISupports* aObj,
|
|
nsIClassInfo* aClassInfo,
|
|
jsval aName,
|
|
void** aPolicy)
|
|
{
|
|
return CheckPropertyAccessImpl(aAction, aCallContext, aJSContext,
|
|
aJSObject, aObj, nsnull, aClassInfo,
|
|
aName, nsnull, nsnull, aPolicy);
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::CheckXPCPermissions(JSContext *aJSContext,
|
|
nsISupports* aObj,
|
|
const char* aObjectSecurityLevel,
|
|
const char* aErrorMsg)
|
|
{
|
|
//-- Check for the all-powerful UniversalXPConnect privilege
|
|
PRBool ok = PR_FALSE;
|
|
if (NS_SUCCEEDED(IsCapabilityEnabled("UniversalXPConnect", &ok)) && ok)
|
|
return NS_OK;
|
|
|
|
//-- If the object implements nsISecurityCheckedComponent, it has a non-default policy.
|
|
if (aObjectSecurityLevel)
|
|
{
|
|
if (PL_strcasecmp(aObjectSecurityLevel, "AllAccess") == 0)
|
|
return NS_OK;
|
|
else if (PL_strcasecmp(aObjectSecurityLevel, "NoAccess") != 0)
|
|
{
|
|
PRBool canAccess = PR_FALSE;
|
|
if (NS_SUCCEEDED(IsCapabilityEnabled(aObjectSecurityLevel, &canAccess)) &&
|
|
canAccess)
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
//-- If user allows scripting of plugins by untrusted scripts,
|
|
// and the target object is a plugin, allow the access.
|
|
if(aObj)
|
|
{
|
|
nsresult rv;
|
|
nsCOMPtr<nsIPluginInstance> plugin = do_QueryInterface(aObj, &rv);
|
|
if (NS_SUCCEEDED(rv))
|
|
{
|
|
static PRBool prefSet = PR_FALSE;
|
|
static PRBool allowPluginAccess = PR_FALSE;
|
|
if (!prefSet)
|
|
{
|
|
rv = mPrefs->GetBoolPref("security.xpconnect.plugin.unrestricted",
|
|
&allowPluginAccess);
|
|
prefSet = PR_TRUE;
|
|
}
|
|
if (allowPluginAccess)
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
//-- Access tests failed, so report error
|
|
JS_SetPendingException(aJSContext,
|
|
STRING_TO_JSVAL(JS_NewStringCopyZ(aJSContext, aErrorMsg)));
|
|
return NS_ERROR_DOM_XPCONNECT_ACCESS_DENIED;
|
|
}
|
|
|
|
/////////////////////////////////////
|
|
// Method implementing nsIObserver //
|
|
/////////////////////////////////////
|
|
NS_IMETHODIMP
|
|
nsScriptSecurityManager::Observe(nsISupports* aObject, const PRUnichar* aAction,
|
|
const PRUnichar* aPrefName)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
nsCAutoString prefNameStr;
|
|
prefNameStr.AssignWithConversion(aPrefName);
|
|
char* prefName = prefNameStr.ToNewCString();
|
|
if (!prefName)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
static const char jsPrefix[] = "javascript.";
|
|
if(PL_strncmp(prefName, jsPrefix, sizeof(jsPrefix)-1) == 0)
|
|
JSEnabledPrefChanged();
|
|
else if((PL_strncmp(prefName, sPrincipalPrefix, sizeof(sPrincipalPrefix)-1) == 0) &&
|
|
!mIsWritingPrefs)
|
|
{
|
|
static const char id[] = "id";
|
|
char* lastDot = PL_strrchr(prefName, '.');
|
|
//-- This check makes sure the string copy below doesn't overwrite its bounds
|
|
if(PL_strlen(lastDot) >= sizeof(id))
|
|
{
|
|
PL_strcpy(lastDot + 1, id);
|
|
const char** idPrefArray = (const char**)&prefName;
|
|
rv = InitPrincipals(1, idPrefArray);
|
|
}
|
|
}
|
|
PR_Free(prefName);
|
|
return rv;
|
|
}
|
|
|
|
/////////////////////////////////////////////
|
|
// Constructor, Destructor, Initialization //
|
|
/////////////////////////////////////////////
|
|
nsScriptSecurityManager::nsScriptSecurityManager(void)
|
|
: mOriginToPolicyMap(nsnull),
|
|
mClassPolicies(nsnull),
|
|
mSystemPrincipal(nsnull), mPrincipals(nsnull),
|
|
mIsJavaScriptEnabled(PR_FALSE),
|
|
mIsMailJavaScriptEnabled(PR_FALSE),
|
|
mIsWritingPrefs(PR_FALSE),
|
|
mNameSetRegistered(PR_FALSE)
|
|
|
|
{
|
|
NS_INIT_REFCNT();
|
|
InitPrefs();
|
|
mThreadJSContextStack = do_GetService("@mozilla.org/js/xpc/ContextStack;1");
|
|
}
|
|
|
|
nsScriptSecurityManager::~nsScriptSecurityManager(void)
|
|
{
|
|
delete mOriginToPolicyMap;
|
|
delete mClassPolicies;
|
|
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(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;
|
|
}
|
|
|
|
const char* nsScriptSecurityManager::sJSEnabledPrefName = "javascript.enabled";
|
|
const char* nsScriptSecurityManager::sJSMailEnabledPrefName = "javascript.allow.mailnews";
|
|
const char* nsScriptSecurityManager::sPrincipalPrefix = "capability.principal";
|
|
|
|
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;
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::InitPolicies(PRUint32 aPrefCount, const char** aPrefNames)
|
|
{
|
|
for (PRUint32 c = 0; c < aPrefCount; c++)
|
|
{
|
|
unsigned count = 0;
|
|
const char *dots[5];
|
|
const char *p;
|
|
for (p=aPrefNames[c]; *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)
|
|
continue;
|
|
const char *policyName = dots[1] + 1;
|
|
int policyLength = dots[2] - policyName;
|
|
PRBool isDefault = PL_strncmp("default", policyName, policyLength) == 0;
|
|
if (!isDefault && count == 3)
|
|
{
|
|
// capability.policy.<policyname>.sites
|
|
const char *sitesName = dots[2] + 1;
|
|
int sitesLength = dots[3] - sitesName;
|
|
if (PL_strncmp("sites", sitesName, sitesLength) == 0)
|
|
{
|
|
if (!mOriginToPolicyMap)
|
|
{
|
|
mOriginToPolicyMap =
|
|
new nsObjectHashtable(nsnull, nsnull, DeleteEntry, nsnull);
|
|
if (!mOriginToPolicyMap)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
char *s;
|
|
if (NS_FAILED(mSecurityPrefs->SecurityGetCharPref(aPrefNames[c], &s)))
|
|
return NS_ERROR_FAILURE;
|
|
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';
|
|
nsCStringKey key(nextToLastDot ? nextToLastDot+1 : q);
|
|
nsDomainEntry *value = new nsDomainEntry(q, policyName,
|
|
policyLength);
|
|
if (!value)
|
|
break;
|
|
nsDomainEntry *de = (nsDomainEntry *)
|
|
mOriginToPolicyMap->Get(&key);
|
|
if (!de)
|
|
mOriginToPolicyMap->Put(&key, value);
|
|
else
|
|
{
|
|
if (de->Matches(q))
|
|
{
|
|
value->mNext = de;
|
|
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);
|
|
}
|
|
}
|
|
else if (count > 3)
|
|
{ // capability.policy.<policyname>.<class>.<property>[.(get|set)]
|
|
// Store the class name so we know this class has a policy set on it
|
|
// Shoving a null into the pref anme string is unorthodox
|
|
// but it saves a malloc & copy - hash keys require null-terminated strings
|
|
*(char*)dots[3] = '\0';
|
|
nsCStringKey classNameKey(dots[2] + 1);
|
|
if (!(mClassPolicies))
|
|
mClassPolicies = new nsHashtable(31);
|
|
// We don't actually have to store the class name as data in the hashtable,
|
|
// since all we check for is whether the key exists.
|
|
void* classPolicy = mClassPolicies->Get(&classNameKey);
|
|
if (isDefault && !classPolicy)
|
|
mClassPolicies->Put(&classNameKey, (void*)CLASS_POLICY_DEFAULT);
|
|
else if (!isDefault && classPolicy != (void*)CLASS_POLICY_SITE)
|
|
mClassPolicies->Put(&classNameKey, (void*)CLASS_POLICY_SITE);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::PrincipalPrefNames(const char* pref,
|
|
char** grantedPref, char** deniedPref)
|
|
{
|
|
char* lastDot = PL_strrchr(pref, '.');
|
|
if (!lastDot) return NS_ERROR_FAILURE;
|
|
PRInt32 prefLen = lastDot - pref + 1;
|
|
|
|
*grantedPref = nsnull;
|
|
*deniedPref = nsnull;
|
|
|
|
static const char granted[] = "granted";
|
|
*grantedPref = (char*)PR_MALLOC(prefLen + sizeof(granted));
|
|
if (!grantedPref) return NS_ERROR_OUT_OF_MEMORY;
|
|
PL_strncpy(*grantedPref, pref, prefLen);
|
|
PL_strcpy(*grantedPref + prefLen, granted);
|
|
|
|
static const char denied[] = "denied";
|
|
*deniedPref = (char*)PR_MALLOC(prefLen + sizeof(denied));
|
|
if (!deniedPref)
|
|
{
|
|
PR_FREEIF(*grantedPref);
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
PL_strncpy(*deniedPref, pref, prefLen);
|
|
PL_strcpy(*deniedPref + prefLen, denied);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::InitPrincipals(PRUint32 aPrefCount, const char** aPrefNames)
|
|
{
|
|
/* This is the principal preference syntax:
|
|
* capability.principal.[codebase|certificate].<name>.[id|granted|denied]
|
|
* For example:
|
|
* user_pref("capability.principal.certificate.p1.id","12:34:AB:CD");
|
|
* user_pref("capability.principal.certificate.p1.granted","Capability1 Capability2");
|
|
* user_pref("capability.principal.certificate.p1.denied","Capability3");
|
|
*/
|
|
|
|
static const char idSuffix[] = ".id";
|
|
for (PRUint32 c = 0; c < aPrefCount; c++)
|
|
{
|
|
PRInt32 prefNameLen = PL_strlen(aPrefNames[c]) - (sizeof(idSuffix)-1);
|
|
if (PL_strcasecmp(aPrefNames[c] + prefNameLen, idSuffix) != 0)
|
|
continue;
|
|
|
|
char* id;
|
|
if (NS_FAILED(mSecurityPrefs->SecurityGetCharPref(aPrefNames[c], &id)))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsXPIDLCString grantedPrefName;
|
|
nsXPIDLCString deniedPrefName;
|
|
nsresult rv = PrincipalPrefNames(aPrefNames[c],
|
|
getter_Copies(grantedPrefName),
|
|
getter_Copies(deniedPrefName));
|
|
if (rv == NS_ERROR_OUT_OF_MEMORY)
|
|
return rv;
|
|
else if (NS_FAILED(rv))
|
|
continue;
|
|
|
|
char* grantedList = nsnull;
|
|
mSecurityPrefs->SecurityGetCharPref(grantedPrefName, &grantedList);
|
|
char* deniedList = nsnull;
|
|
mSecurityPrefs->SecurityGetCharPref(deniedPrefName, &deniedList);
|
|
|
|
//-- Delete prefs if their value is the empty string
|
|
if ((!id || id[0] == '\0') ||
|
|
((!grantedList || grantedList[0] == '\0') && (!deniedList || deniedList[0] == '\0')))
|
|
{
|
|
mSecurityPrefs->SecurityClearUserPref(aPrefNames[c]);
|
|
mSecurityPrefs->SecurityClearUserPref(grantedPrefName);
|
|
mSecurityPrefs->SecurityClearUserPref(deniedPrefName);
|
|
PR_FREEIF(grantedList);
|
|
PR_FREEIF(deniedList);
|
|
continue;
|
|
}
|
|
|
|
//-- Create a principal based on the prefs
|
|
static const char certificateName[] = "capability.principal.certificate";
|
|
static const char codebaseName[] = "capability.principal.codebase";
|
|
nsCOMPtr<nsIPrincipal> principal;
|
|
if (PL_strncmp(aPrefNames[c], certificateName,
|
|
sizeof(certificateName)-1) == 0)
|
|
{
|
|
nsCertificatePrincipal *certificate = new nsCertificatePrincipal();
|
|
if (certificate) {
|
|
NS_ADDREF(certificate);
|
|
if (NS_SUCCEEDED(certificate->InitFromPersistent(aPrefNames[c], id,
|
|
grantedList, deniedList)))
|
|
principal = do_QueryInterface((nsBasePrincipal*)certificate);
|
|
NS_RELEASE(certificate);
|
|
}
|
|
} else if(PL_strncmp(aPrefNames[c], codebaseName,
|
|
sizeof(codebaseName)-1) == 0)
|
|
{
|
|
nsCodebasePrincipal *codebase = new nsCodebasePrincipal();
|
|
if (codebase) {
|
|
NS_ADDREF(codebase);
|
|
if (NS_SUCCEEDED(codebase->InitFromPersistent(aPrefNames[c], id,
|
|
grantedList, deniedList)))
|
|
principal = do_QueryInterface((nsBasePrincipal*)codebase);
|
|
NS_RELEASE(codebase);
|
|
}
|
|
}
|
|
PR_FREEIF(grantedList);
|
|
PR_FREEIF(deniedList);
|
|
|
|
if (principal)
|
|
{
|
|
if (!mPrincipals)
|
|
{
|
|
mPrincipals = new nsSupportsHashtable(31);
|
|
if (!mPrincipals)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
nsIPrincipalKey key(principal);
|
|
mPrincipals->Put(&key, principal);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
inline void
|
|
nsScriptSecurityManager::JSEnabledPrefChanged()
|
|
{
|
|
if (NS_FAILED(mPrefs->GetBoolPref(sJSEnabledPrefName,
|
|
&mIsJavaScriptEnabled)))
|
|
// Default to enabled.
|
|
mIsJavaScriptEnabled = PR_TRUE;
|
|
|
|
if (NS_FAILED(mPrefs->GetBoolPref(sJSMailEnabledPrefName,
|
|
&mIsMailJavaScriptEnabled)))
|
|
// Default to enabled.
|
|
mIsMailJavaScriptEnabled = PR_TRUE;
|
|
}
|
|
|
|
nsresult
|
|
nsScriptSecurityManager::InitPrefs()
|
|
{
|
|
nsresult rv;
|
|
mPrefService = do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
rv = mPrefService->GetBranch(nsnull, getter_AddRefs(mPrefs));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
mSecurityPrefs = do_QueryInterface(mPrefs, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
nsCOMPtr<nsIPrefBranchInternal> prefBranchInternal = do_QueryInterface(mPrefs, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Set the initial value of the "javascript.enabled" prefs
|
|
JSEnabledPrefChanged();
|
|
// set observer callbacks in case the value of the pref changes
|
|
prefBranchInternal->AddObserver(sJSEnabledPrefName, this);
|
|
prefBranchInternal->AddObserver(sJSMailEnabledPrefName, this);
|
|
|
|
PRUint32 prefCount;
|
|
char** prefNames;
|
|
|
|
//-- Initialize the policy database from prefs
|
|
rv = mPrefs->GetChildList("capability.policy", &prefCount, &prefNames);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
rv = InitPolicies(prefCount, (const char**)prefNames);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(prefCount, prefNames);
|
|
|
|
//-- Initialize the principals database from prefs
|
|
rv = mPrefs->GetChildList(sPrincipalPrefix, &prefCount, &prefNames);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
rv = InitPrincipals(prefCount, (const char**)prefNames);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(prefCount, prefNames);
|
|
|
|
//-- Set a callback for principal changes
|
|
prefBranchInternal->AddObserver(sPrincipalPrefix, this);
|
|
|
|
return NS_OK;
|
|
}
|