gecko-dev/caps/nsScriptSecurityManager.h

165 lines
4.8 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set ts=4 et sw=4 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsScriptSecurityManager_h__
#define nsScriptSecurityManager_h__
#include "nsIScriptSecurityManager.h"
#include "nsIPrincipal.h"
#include "nsCOMPtr.h"
#include "nsIChannelEventSink.h"
#include "nsIObserver.h"
#include "plstr.h"
#include "js/TypeDecls.h"
#include <stdint.h>
class nsCString;
class nsIIOService;
class nsIStringBundle;
class nsSystemPrincipal;
/////////////////////////////
// nsScriptSecurityManager //
/////////////////////////////
#define NS_SCRIPTSECURITYMANAGER_CID \
{ 0x7ee2a4c0, 0x4b93, 0x17d3, \
{ 0xba, 0x18, 0x00, 0x60, 0xb0, 0xf1, 0x99, 0xa2 }}
class nsScriptSecurityManager final : public nsIScriptSecurityManager,
public nsIChannelEventSink,
public nsIObserver
{
public:
static void Shutdown();
NS_DEFINE_STATIC_CID_ACCESSOR(NS_SCRIPTSECURITYMANAGER_CID)
NS_DECL_ISUPPORTS
NS_DECL_NSISCRIPTSECURITYMANAGER
NS_DECL_NSICHANNELEVENTSINK
NS_DECL_NSIOBSERVER
static nsScriptSecurityManager*
GetScriptSecurityManager();
// Invoked exactly once, by XPConnect.
static void InitStatics();
static nsSystemPrincipal*
SystemPrincipalSingletonConstructor();
JSContext* GetCurrentJSContext();
JSContext* GetSafeJSContext();
/**
* Utility method for comparing two URIs. For security purposes, two URIs
* are equivalent if their schemes, hosts, and ports (if any) match. This
* method returns true if aSubjectURI and aObjectURI have the same origin,
* false otherwise.
*/
static bool SecurityCompareURIs(nsIURI* aSourceURI, nsIURI* aTargetURI);
static uint32_t SecurityHashURI(nsIURI* aURI);
static uint16_t AppStatusForPrincipal(nsIPrincipal *aPrin);
static nsresult
ReportError(JSContext* cx, const nsAString& messageTag,
nsIURI* aSource, nsIURI* aTarget);
static uint32_t
HashPrincipalByOrigin(nsIPrincipal* aPrincipal);
static bool
GetStrictFileOriginPolicy()
{
return sStrictFileOriginPolicy;
}
/**
* Returns true if the two principals share the same app attributes.
*
* App attributes are appId and the inBrowserElement flag.
* Two principals have the same app attributes if those information are
* equals.
* This method helps keeping principals from different apps isolated from
* each other. Also, it helps making sure mozbrowser (web views) and their
* parent are isolated from each other. All those entities do not share the
* same data (cookies, IndexedDB, localStorage, etc.) so we shouldn't allow
* violating that principle.
*/
static bool
AppAttributesEqual(nsIPrincipal* aFirst,
nsIPrincipal* aSecond);
void DeactivateDomainPolicy();
private:
// GetScriptSecurityManager is the only call that can make one
nsScriptSecurityManager();
virtual ~nsScriptSecurityManager();
// Decides, based on CSP, whether or not eval() and stuff can be executed.
static bool
ContentSecurityPolicyPermitsJSAction(JSContext *cx);
static bool
JSPrincipalsSubsume(JSPrincipals *first, JSPrincipals *second);
// Returns null if a principal cannot be found; generally callers
// should error out at that point.
static nsIPrincipal* doGetObjectPrincipal(JSObject* obj);
nsresult
GetCodebasePrincipalInternal(nsIURI* aURI, uint32_t aAppId,
bool aInMozBrowser,
nsIPrincipal** result);
nsresult
CreateCodebasePrincipal(nsIURI* aURI, uint32_t aAppId, bool aInMozBrowser,
nsIPrincipal** result);
nsresult
Init();
nsresult
InitPrefs();
inline void
ScriptSecurityPrefChanged();
inline void
AddSitesToFileURIWhitelist(const nsCString& aSiteList);
nsCOMPtr<nsIPrincipal> mSystemPrincipal;
bool mPrefInitialized;
bool mIsJavaScriptEnabled;
nsTArray<nsCOMPtr<nsIURI>> mFileURIWhitelist;
// This machinery controls new-style domain policies. The old-style
// policy machinery will be removed soon.
nsCOMPtr<nsIDomainPolicy> mDomainPolicy;
static bool sStrictFileOriginPolicy;
static nsIIOService *sIOService;
static nsIStringBundle *sStrBundle;
static JSRuntime *sRuntime;
};
namespace mozilla {
void
GetJarPrefix(uint32_t aAppid,
bool aInMozBrowser,
nsACString& aJarPrefix);
} // namespace mozilla
#endif // nsScriptSecurityManager_h__