michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /* The privileged system principal. */
michael@0: 
michael@0: #include "nscore.h"
michael@0: #include "nsSystemPrincipal.h"
michael@0: #include "nsIComponentManager.h"
michael@0: #include "nsIServiceManager.h"
michael@0: #include "nsIURL.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsXPIDLString.h"
michael@0: #include "nsReadableUtils.h"
michael@0: #include "nsCRT.h"
michael@0: #include "nsString.h"
michael@0: #include "nsIClassInfoImpl.h"
michael@0: #include "nsIScriptSecurityManager.h"
michael@0: #include "pratom.h"
michael@0: 
michael@0: NS_IMPL_CLASSINFO(nsSystemPrincipal, nullptr,
michael@0:                   nsIClassInfo::SINGLETON | nsIClassInfo::MAIN_THREAD_ONLY,
michael@0:                   NS_SYSTEMPRINCIPAL_CID)
michael@0: NS_IMPL_QUERY_INTERFACE_CI(nsSystemPrincipal,
michael@0:                            nsIPrincipal,
michael@0:                            nsISerializable)
michael@0: NS_IMPL_CI_INTERFACE_GETTER(nsSystemPrincipal,
michael@0:                             nsIPrincipal,
michael@0:                             nsISerializable)
michael@0: 
michael@0: NS_IMETHODIMP_(MozExternalRefCountType)
michael@0: nsSystemPrincipal::AddRef()
michael@0: {
michael@0:   NS_PRECONDITION(int32_t(refcount) >= 0, "illegal refcnt");
michael@0:   nsrefcnt count = ++refcount;
michael@0:   NS_LOG_ADDREF(this, count, "nsSystemPrincipal", sizeof(*this));
michael@0:   return count;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP_(MozExternalRefCountType)
michael@0: nsSystemPrincipal::Release()
michael@0: {
michael@0:   NS_PRECONDITION(0 != refcount, "dup release");
michael@0:   nsrefcnt count = --refcount;
michael@0:   NS_LOG_RELEASE(this, count, "nsSystemPrincipal");
michael@0:   if (count == 0) {
michael@0:     delete this;
michael@0:   }
michael@0: 
michael@0:   return count;
michael@0: }
michael@0: 
michael@0: static const char SYSTEM_PRINCIPAL_SPEC[] = "[System Principal]";
michael@0: 
michael@0: void
michael@0: nsSystemPrincipal::GetScriptLocation(nsACString &aStr)
michael@0: {
michael@0:     aStr.Assign(SYSTEM_PRINCIPAL_SPEC);
michael@0: }
michael@0: 
michael@0: #ifdef DEBUG
michael@0: void nsSystemPrincipal::dumpImpl()
michael@0: {
michael@0:   fprintf(stderr, "nsSystemPrincipal (%p)\n", this);
michael@0: }
michael@0: #endif 
michael@0: 
michael@0: 
michael@0: ///////////////////////////////////////
michael@0: // Methods implementing nsIPrincipal //
michael@0: ///////////////////////////////////////
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::Equals(nsIPrincipal *other, bool *result)
michael@0: {
michael@0:     *result = (other == this);
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::EqualsConsideringDomain(nsIPrincipal *other, bool *result)
michael@0: {
michael@0:     return Equals(other, result);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::Subsumes(nsIPrincipal *other, bool *result)
michael@0: {
michael@0:     *result = true;
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::SubsumesConsideringDomain(nsIPrincipal *other, bool *result)
michael@0: {
michael@0:     *result = true;
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::CheckMayLoad(nsIURI* uri, bool aReport, bool aAllowIfInheritsPrincipal)
michael@0: {
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::GetHashValue(uint32_t *result)
michael@0: {
michael@0:     *result = NS_PTR_TO_INT32(this);
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsSystemPrincipal::GetURI(nsIURI** aURI)
michael@0: {
michael@0:     *aURI = nullptr;
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsSystemPrincipal::GetOrigin(char** aOrigin)
michael@0: {
michael@0:     *aOrigin = ToNewCString(NS_LITERAL_CSTRING(SYSTEM_PRINCIPAL_SPEC));
michael@0:     return *aOrigin ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::GetCsp(nsIContentSecurityPolicy** aCsp)
michael@0: {
michael@0:   *aCsp = nullptr;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::SetCsp(nsIContentSecurityPolicy* aCsp)
michael@0: {
michael@0:   // CSP on a null principal makes no sense
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::GetDomain(nsIURI** aDomain)
michael@0: {
michael@0:     *aDomain = nullptr;
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::SetDomain(nsIURI* aDomain)
michael@0: {
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::GetJarPrefix(nsACString& aJarPrefix)
michael@0: {
michael@0:   aJarPrefix.Truncate();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::GetAppStatus(uint16_t* aAppStatus)
michael@0: {
michael@0:   *aAppStatus = nsIPrincipal::APP_STATUS_NOT_INSTALLED;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::GetAppId(uint32_t* aAppId)
michael@0: {
michael@0:   *aAppId = nsIScriptSecurityManager::NO_APP_ID;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::GetIsInBrowserElement(bool* aIsInBrowserElement)
michael@0: {
michael@0:   *aIsInBrowserElement = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::GetUnknownAppId(bool* aUnknownAppId)
michael@0: {
michael@0:   *aUnknownAppId = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::GetIsNullPrincipal(bool* aIsNullPrincipal)
michael@0: {
michael@0:   *aIsNullPrincipal = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::GetBaseDomain(nsACString& aBaseDomain)
michael@0: {
michael@0:   // No base domain for chrome.
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: //////////////////////////////////////////
michael@0: // Methods implementing nsISerializable //
michael@0: //////////////////////////////////////////
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::Read(nsIObjectInputStream* aStream)
michael@0: {
michael@0:     // no-op: CID is sufficient to identify the mSystemPrincipal singleton
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSystemPrincipal::Write(nsIObjectOutputStream* aStream)
michael@0: {
michael@0:     // no-op: CID is sufficient to identify the mSystemPrincipal singleton
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: /////////////////////////////////////////////
michael@0: // Constructor, Destructor, initialization //
michael@0: /////////////////////////////////////////////
michael@0: 
michael@0: nsSystemPrincipal::nsSystemPrincipal()
michael@0: {
michael@0: }
michael@0: 
michael@0: nsSystemPrincipal::~nsSystemPrincipal()
michael@0: {
michael@0: }