Added support for Two-factor authentication for improving security. Fixes #6543

web/config.py

@@ -743,6 +743,29 @@ WEBSERVER_AUTO_CREATE_USER = True
 
 WEBSERVER_REMOTE_USER = 'REMOTE_USER'
 
+##########################################################################
+# Two-factor Authentication Configuration
+##########################################################################
+
+# Set it to True, to enable the two-factor authentication
+MFA_ENABLED = True
+
+# Set it to True, to ask the users to register forcefully for the
+# two-authentication methods on logged-in.
+MFA_FORCE_REGISTRATION = False
+
+# pgAdmin supports Two-factor authentication by either sending an one-time code
+# to an email, or using the TOTP based application like Google Authenticator.
+MFA_SUPPORTED_METHODS = ["email", "authenticator"]
+
+# NOTE: Please set the 'Mail server settings' to use 'email' as two-factor
+#       authentication method.
+
+# Subject for the email verification code
+# Default: <APP_NAME> - Verification Code
+# e.g.  pgAdmin 4 - Verification Code
+MFA_EMAIL_SUBJECT = None
+
 ##########################################################################
 # PSQL tool settings
 ##########################################################################