/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1999-2000 * the Initial Developer. All Rights Reserved. * * Contributor(s): * * Alternatively, the contents of this file may be used under the terms of * either of the GNU General Public License Version 2 or later (the "GPL"), * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ /* The privileged system principal. */ #include "nscore.h" #include "nsSystemPrincipal.h" #include "nsIComponentManager.h" #include "nsIServiceManager.h" #include "nsIURL.h" #include "nsCOMPtr.h" #include "nsXPIDLString.h" #include "nsReadableUtils.h" #include "nsCRT.h" #include "nsString.h" #include "nsIClassInfoImpl.h" NS_IMPL_QUERY_INTERFACE2_CI(nsSystemPrincipal, nsIPrincipal, nsISerializable) NS_IMPL_CI_INTERFACE_GETTER2(nsSystemPrincipal, nsIPrincipal, nsISerializable) NS_IMETHODIMP_(nsrefcnt) nsSystemPrincipal::AddRef() { NS_PRECONDITION(PRInt32(mJSPrincipals.refcount) >= 0, "illegal refcnt"); nsrefcnt count = PR_AtomicIncrement((PRInt32 *)&mJSPrincipals.refcount); NS_LOG_ADDREF(this, count, "nsSystemPrincipal", sizeof(*this)); return count; } NS_IMETHODIMP_(nsrefcnt) nsSystemPrincipal::Release() { NS_PRECONDITION(0 != mJSPrincipals.refcount, "dup release"); nsrefcnt count = PR_AtomicDecrement((PRInt32 *)&mJSPrincipals.refcount); NS_LOG_RELEASE(this, count, "nsSystemPrincipal"); if (count == 0) { NS_DELETEXPCOM(this); } return count; } /////////////////////////////////////// // Methods implementing nsIPrincipal // /////////////////////////////////////// NS_IMETHODIMP nsSystemPrincipal::GetPreferences(char** aPrefName, char** aID, char** aSubjectName, char** aGrantedList, char** aDeniedList, PRBool* aIsTrusted) { // The system principal should never be streamed out *aPrefName = nsnull; *aID = nsnull; *aSubjectName = nsnull; *aGrantedList = nsnull; *aDeniedList = nsnull; *aIsTrusted = PR_FALSE; return NS_ERROR_FAILURE; } NS_IMETHODIMP nsSystemPrincipal::Equals(nsIPrincipal *other, PRBool *result) { *result = (other == this); return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::Subsumes(nsIPrincipal *other, PRBool *result) { *result = PR_TRUE; return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::CheckMayLoad(nsIURI* uri, PRBool aReport) { return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::GetHashValue(PRUint32 *result) { *result = NS_PTR_TO_INT32(this); return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::CanEnableCapability(const char *capability, PRInt16 *result) { // System principal can enable all capabilities. *result = nsIPrincipal::ENABLE_GRANTED; return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::SetCanEnableCapability(const char *capability, PRInt16 canEnable) { return NS_ERROR_FAILURE; } NS_IMETHODIMP nsSystemPrincipal::IsCapabilityEnabled(const char *capability, void *annotation, PRBool *result) { *result = PR_TRUE; return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::EnableCapability(const char *capability, void **annotation) { *annotation = nsnull; return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::RevertCapability(const char *capability, void **annotation) { *annotation = nsnull; return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::DisableCapability(const char *capability, void **annotation) { // Can't disable the capabilities of the system principal. // XXX might be handy to be able to do so! *annotation = nsnull; return NS_ERROR_FAILURE; } NS_IMETHODIMP nsSystemPrincipal::GetURI(nsIURI** aURI) { *aURI = nsnull; return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::GetOrigin(char** aOrigin) { *aOrigin = ToNewCString(NS_LITERAL_CSTRING("[System]")); return *aOrigin ? NS_OK : NS_ERROR_OUT_OF_MEMORY; } NS_IMETHODIMP nsSystemPrincipal::GetFingerprint(nsACString& aID) { return NS_ERROR_NOT_AVAILABLE; } NS_IMETHODIMP nsSystemPrincipal::GetPrettyName(nsACString& aName) { return NS_ERROR_NOT_AVAILABLE; } NS_IMETHODIMP nsSystemPrincipal::GetSubjectName(nsACString& aName) { return NS_ERROR_NOT_AVAILABLE; } NS_IMETHODIMP nsSystemPrincipal::GetCertificate(nsISupports** aCertificate) { *aCertificate = nsnull; return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::GetHasCertificate(PRBool* aResult) { *aResult = PR_FALSE; return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::GetCsp(nsIContentSecurityPolicy** aCsp) { *aCsp = nsnull; return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::SetCsp(nsIContentSecurityPolicy* aCsp) { // CSP on a null principal makes no sense return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::GetDomain(nsIURI** aDomain) { *aDomain = nsnull; return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::SetDomain(nsIURI* aDomain) { return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::GetSecurityPolicy(void** aSecurityPolicy) { *aSecurityPolicy = nsnull; return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::SetSecurityPolicy(void* aSecurityPolicy) { return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::GetJSPrincipals(JSContext *cx, JSPrincipals **jsprin) { NS_PRECONDITION(mJSPrincipals.nsIPrincipalPtr, "mJSPrincipals is uninitialized!"); JSPRINCIPALS_HOLD(cx, &mJSPrincipals); *jsprin = &mJSPrincipals; return NS_OK; } ////////////////////////////////////////// // Methods implementing nsISerializable // ////////////////////////////////////////// NS_IMETHODIMP nsSystemPrincipal::Read(nsIObjectInputStream* aStream) { // no-op: CID is sufficient to identify the mSystemPrincipal singleton return NS_OK; } NS_IMETHODIMP nsSystemPrincipal::Write(nsIObjectOutputStream* aStream) { // no-op: CID is sufficient to identify the mSystemPrincipal singleton return NS_OK; } ///////////////////////////////////////////// // Constructor, Destructor, initialization // ///////////////////////////////////////////// nsSystemPrincipal::nsSystemPrincipal() { } #define SYSTEM_PRINCIPAL_SPEC "[System Principal]" nsresult nsSystemPrincipal::Init() { // Use an nsCString so we only do the allocation once here and then // share with nsJSPrincipals nsCString str(SYSTEM_PRINCIPAL_SPEC); if (!str.EqualsLiteral(SYSTEM_PRINCIPAL_SPEC)) { NS_WARNING("Out of memory initializing system principal"); return NS_ERROR_OUT_OF_MEMORY; } return mJSPrincipals.Init(this, str); } nsSystemPrincipal::~nsSystemPrincipal(void) { }