[auth] Added mutex to protect cache for identcert auth

src/auth/identcert/qgsauthidentcertmethod.cpp

@@ -25,6 +25,7 @@
 #include <QSslConfiguration>
 #include <QSslError>
 #endif
+#include <QMutexLocker>
 
 #include "qgsauthcertutils.h"
 #include "qgsauthmanager.h"
@@ -51,8 +52,9 @@ QgsAuthIdentCertMethod::QgsAuthIdentCertMethod()
 
 QgsAuthIdentCertMethod::~QgsAuthIdentCertMethod()
 {
-  qDeleteAll( mPkiConfigBundleCache );
-  mPkiConfigBundleCache.clear();
+  QMutexLocker locker( &mConfigMutex );
+  qDeleteAll( sPkiConfigBundleCache );
+  sPkiConfigBundleCache.clear();
 }
 
 QString QgsAuthIdentCertMethod::key() const
@@ -220,7 +222,8 @@ void QgsAuthIdentCertMethod::updateMethodConfig( QgsAuthMethodConfig &mconfig )
 
 QgsPkiConfigBundle *QgsAuthIdentCertMethod::getPkiConfigBundle( const QString &authcfg )
 {
-  QgsPkiConfigBundle * bundle = nullptr;
+  QMutexLocker locker( &mConfigMutex );
+  QgsPkiConfigBundle *bundle = nullptr;
 
   // check if it is cached
   if ( mPkiConfigBundleCache.contains( authcfg ) )
@@ -264,6 +267,7 @@ QgsPkiConfigBundle *QgsAuthIdentCertMethod::getPkiConfigBundle( const QString &a
 
   bundle = new QgsPkiConfigBundle( mconfig, clientcert, clientkey );
 
+  locker.unlock();
   // cache bundle
   putPkiConfigBundle( authcfg, bundle );
 
@@ -272,13 +276,15 @@ QgsPkiConfigBundle *QgsAuthIdentCertMethod::getPkiConfigBundle( const QString &a
 
 void QgsAuthIdentCertMethod::putPkiConfigBundle( const QString &authcfg, QgsPkiConfigBundle *pkibundle )
 {
+  QMutexLocker locker( &mConfigMutex );
   QgsDebugMsg( QString( "Putting PKI bundle for authcfg %1" ).arg( authcfg ) );
   mPkiConfigBundleCache.insert( authcfg, pkibundle );
 }
 
 void QgsAuthIdentCertMethod::removePkiConfigBundle( const QString &authcfg )
 {
-  if ( mPkiConfigBundleCache.contains( authcfg ) )
+  QMutexLocker locker( &mConfigMutex );
+  if ( sPkiConfigBundleCache.contains( authcfg ) )
   {
     QgsPkiConfigBundle * pkibundle = mPkiConfigBundleCache.take( authcfg );
     delete pkibundle;

src/auth/identcert/qgsauthidentcertmethod.h

@@ -18,6 +18,7 @@
 #define QGSAUTHIDENTCERTMETHOD_H
 
 #include <QObject>
+#include <QMutex>
 
 #include "qgsauthconfig.h"
 #include "qgsauthmethod.h"
@@ -56,7 +57,9 @@ class QgsAuthIdentCertMethod : public QgsAuthMethod
 
     void removePkiConfigBundle( const QString &authcfg );
 
-    static QMap<QString, QgsPkiConfigBundle *> mPkiConfigBundleCache;
+    static QMap<QString, QgsPkiConfigBundle *> sPkiConfigBundleCache;
+
+    QMutex mConfigMutex;
 };
 
 #endif // QGSAUTHIDENTCERTMETHOD_H