Merge pull request #1668 from pbiering/login-cache

add optional cache for login result and htpasswd + fixes

final  version will be updated to 3.4.0 next

config

@@ -62,6 +62,15 @@
 # Value: none | htpasswd | remote_user | http_x_remote_user | ldap | denyall
 #type = none
 
+# Cache logins for until expiration time
+#cache_logins = false
+
+# Expiration time for caching successful logins in seconds
+#cache_successful_logins_expiry = 15
+
+## Expiration time of caching failed logins in seconds
+#cache_failed_logins_expiry = 90
+
 # URI to the LDAP server
 #ldap_uri = ldap://localhost
 
@@ -103,6 +112,9 @@
 # bcrypt requires the installation of 'bcrypt' module.
 #htpasswd_encryption = autodetect
 
+# Enable caching of htpasswd file based on size and mtime_ns
+#htpasswd_cache = False
+
 # Incorrect authentication delay (seconds)
 #delay = 1