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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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/. */
#include "nsClientAuthRemember.h"
#include "nsIX509Cert.h"
#include "mozilla/BasePrincipal.h"
#include "mozilla/RefPtr.h"
#include "nsCRT.h"
#include "nsNSSCertHelper.h"
#include "nsIObserverService.h"
#include "nsNetUtil.h"
#include "nsISupportsPrimitives.h"
#include "nsPromiseFlatString.h"
#include "nsThreadUtils.h"
#include "nsStringBuffer.h"
#include "cert.h"
#include "nspr.h"
#include "pk11pub.h"
#include "certdb.h"
#include "sechash.h"
#include "SharedSSLState.h"
using namespace mozilla;
using namespace mozilla::psm;
NS_IMPL_ISUPPORTS(nsClientAuthRememberService,
nsIObserver,
nsISupportsWeakReference)
nsClientAuthRememberService::nsClientAuthRememberService()
: monitor("nsClientAuthRememberService.monitor")
{
}
nsClientAuthRememberService::~nsClientAuthRememberService()
{
RemoveAllFromMemory();
}
nsresult
nsClientAuthRememberService::Init()
{
if (!NS_IsMainThread()) {
NS_ERROR("nsClientAuthRememberService::Init called off the main thread");
return NS_ERROR_NOT_SAME_THREAD;
}
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
if (observerService) {
observerService->AddObserver(this, "profile-before-change", true);
}
return NS_OK;
}
NS_IMETHODIMP
nsClientAuthRememberService::Observe(nsISupports* aSubject,
const char* aTopic,
const char16_t* aData)
{
// check the topic
if (!nsCRT::strcmp(aTopic, "profile-before-change")) {
// The profile is about to change,
// or is going away because the application is shutting down.
ReentrantMonitorAutoEnter lock(monitor);
RemoveAllFromMemory();
}
return NS_OK;
}
void nsClientAuthRememberService::ClearRememberedDecisions()
{
ReentrantMonitorAutoEnter lock(monitor);
RemoveAllFromMemory();
}
void nsClientAuthRememberService::ClearAllRememberedDecisions()
{
RefPtr<nsClientAuthRememberService> svc =
PublicSSLState()->GetClientAuthRememberService();
svc->ClearRememberedDecisions();
svc = PrivateSSLState()->GetClientAuthRememberService();
svc->ClearRememberedDecisions();
}
void
nsClientAuthRememberService::RemoveAllFromMemory()
{
mSettingsTable.Clear();
}
nsresult
nsClientAuthRememberService::RememberDecision(
const nsACString& aHostName, const NeckoOriginAttributes& aOriginAttributes,
CERTCertificate* aServerCert, CERTCertificate* aClientCert)
{
// aClientCert == nullptr means: remember that user does not want to use a cert
NS_ENSURE_ARG_POINTER(aServerCert);
if (aHostName.IsEmpty()) {
return NS_ERROR_INVALID_ARG;
}
nsAutoCString fpStr;
nsresult rv = GetCertFingerprintByOidTag(aServerCert, SEC_OID_SHA256, fpStr);
if (NS_FAILED(rv)) {
return rv;
}
{
ReentrantMonitorAutoEnter lock(monitor);
if (aClientCert) {
RefPtr<nsNSSCertificate> pipCert(new nsNSSCertificate(aClientCert));
nsAutoCString dbkey;
rv = pipCert->GetDbKey(dbkey);
if (NS_SUCCEEDED(rv)) {
AddEntryToList(aHostName, aOriginAttributes, fpStr, dbkey);
}
} else {
nsCString empty;
AddEntryToList(aHostName, aOriginAttributes, fpStr, empty);
}
}
return NS_OK;
}
nsresult
nsClientAuthRememberService::HasRememberedDecision(
const nsACString& aHostName, const NeckoOriginAttributes& aOriginAttributes,
CERTCertificate* aCert, nsACString& aCertDBKey, bool* aRetVal)
{
if (aHostName.IsEmpty())
return NS_ERROR_INVALID_ARG;
NS_ENSURE_ARG_POINTER(aCert);
NS_ENSURE_ARG_POINTER(aRetVal);
*aRetVal = false;
nsresult rv;
nsAutoCString fpStr;
rv = GetCertFingerprintByOidTag(aCert, SEC_OID_SHA256, fpStr);
if (NS_FAILED(rv))
return rv;
nsAutoCString entryKey;
GetEntryKey(aHostName, aOriginAttributes, fpStr, entryKey);
nsClientAuthRemember settings;
{
ReentrantMonitorAutoEnter lock(monitor);
nsClientAuthRememberEntry* entry = mSettingsTable.GetEntry(entryKey.get());
if (!entry)
return NS_OK;
settings = entry->mSettings; // copy
}
aCertDBKey = settings.mDBKey;
*aRetVal = true;
return NS_OK;
}
nsresult
nsClientAuthRememberService::AddEntryToList(
const nsACString& aHostName, const NeckoOriginAttributes& aOriginAttributes,
const nsACString& aFingerprint, const nsACString& aDBKey)
{
nsAutoCString entryKey;
GetEntryKey(aHostName, aOriginAttributes, aFingerprint, entryKey);
{
ReentrantMonitorAutoEnter lock(monitor);
nsClientAuthRememberEntry* entry = mSettingsTable.PutEntry(entryKey.get());
if (!entry) {
NS_ERROR("can't insert a null entry!");
return NS_ERROR_OUT_OF_MEMORY;
}
entry->mEntryKey = entryKey;
nsClientAuthRemember& settings = entry->mSettings;
settings.mAsciiHost = aHostName;
settings.mFingerprint = aFingerprint;
settings.mDBKey = aDBKey;
}
return NS_OK;
}
void
nsClientAuthRememberService::GetEntryKey(
const nsACString& aHostName,
const NeckoOriginAttributes& aOriginAttributes,
const nsACString& aFingerprint,
nsACString& aEntryKey)
{
nsAutoCString hostCert(aHostName);
nsAutoCString suffix;
aOriginAttributes.CreateSuffix(suffix);
hostCert.Append(suffix);
hostCert.Append(':');
hostCert.Append(aFingerprint);
aEntryKey.Assign(hostCert);
}
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