Hello Dirk,

thanks for sending the patch. I've divided your changes into two
patches and merged them.

Best regards,

-Stefan
> Signed-off-by: Dirk Wagner <dirk.wagner(a)ipfire.org>
> ---
>  README                |  1 +
>  src/ddns/errors.py    |  8 +++++++-
>  src/ddns/providers.py | 15 ++++++++++++++-
>  src/ddns/system.py    |  4 ++++
>  4 files changed, 26 insertions(+), 2 deletions(-)
>  mode change 100644 => 100755 README
>  mode change 100644 => 100755 src/ddns/errors.py
>  mode change 100644 => 100755 src/ddns/providers.py
>  mode change 100644 => 100755 src/ddns/system.py
> 
> diff --git a/README b/README
> old mode 100644
> new mode 100755
> index 40f1e7f..5f1911d
> --- a/README
> +++ b/README
> @@ -55,6 +55,7 @@ SUPPORTED PROVIDERS:
>  	dns.lightningwirelabs.com
>  	dnsmadeeasy.com
>  	dnspark.com
> +	do.de
>  	domains.google.com
>  	domopoli.de
>  	dtdns.com
> diff --git a/src/ddns/errors.py b/src/ddns/errors.py
> old mode 100644
> new mode 100755
> index 58a5ba9..e5383dc
> --- a/src/ddns/errors.py
> +++ b/src/ddns/errors.py
> @@ -2,7 +2,7 @@
>  ####################################################################
> ###########
>  #                                                                   
>           #
>  # ddns - A dynamic DNS client for
> IPFire                                      #
> -# Copyright (C) 2012 IPFire development
> team                                  #
> +# Copyright (C) 2012-2017 IPFire development
> team                             #
>  #                                                                   
>           #
>  # This program is free software: you can redistribute it and/or
> modify        #
>  # it under the terms of the GNU General Public License as published
> by        #
> @@ -160,6 +160,12 @@ class
> DDNSServiceUnavailableError(DDNSNetworkError):
>  	"""
>  	reason = N_("Service unavailable")
>  
> +	
> +class DDNSTooManyRequests(DDNSError):
> +	"""
> +		Raised when too many requests occured.
> +	"""
> +	reason = N_("Too many requests")
>  
>  class DDNSUpdateError(DDNSError):
>  	"""
> diff --git a/src/ddns/providers.py b/src/ddns/providers.py
> old mode 100644
> new mode 100755
> index 2c30d42..2a74511
> --- a/src/ddns/providers.py
> +++ b/src/ddns/providers.py
> @@ -2,7 +2,7 @@
>  ####################################################################
> ###########
>  #                                                                   
>           #
>  # ddns - A dynamic DNS client for
> IPFire                                      #
> -# Copyright (C) 2012 IPFire development
> team                                  #
> +# Copyright (C) 2012-2017 IPFire development
> team                             #
>  #                                                                   
>           #
>  # This program is free software: you can redistribute it and/or
> modify        #
>  # it under the terms of the GNU General Public License as published
> by        #
> @@ -840,7 +840,20 @@ class DDNSProviderDynDNS(DDNSProtocolDynDNS2,
> DDNSProvider):
>  
>  	url = "https://members.dyndns.org/nic/update"
>  
> +	
> +class DDNSProviderDomainOffensive(DDNSProtocolDynDNS2,
> DDNSProvider):
> +	handle    = "do.de"
> +	name      = "Domain-Offensive"
> +	website   = "http://dyn.com/dns/"
> +	protocols = ("ipv4",)
> +
> +	# Detailed information about the request and response codes
> +	# are available on the providers webpage.
> +	# https://www.do.de/wiki/FlexDNS_-_Entwickler
> +	
> +	url = "https://ddns.do.de/"
>  
> +	
>  class DDNSProviderDynU(DDNSProtocolDynDNS2, DDNSProvider):
>  	handle    = "dynu.com"
>  	name      = "Dynu"
> diff --git a/src/ddns/system.py b/src/ddns/system.py
> old mode 100644
> new mode 100755
> index c268ba5..67ea553
> --- a/src/ddns/system.py
> +++ b/src/ddns/system.py
> @@ -194,6 +194,10 @@ class DDNSSystem(object):
>  			elif e.code == 404:
>  				raise DDNSNotFound(e.reason)
>  
> +			# 429 - Too Many Requests
> +			elif e.code == 429:
> +				raise DDNSTooManyRequests(e.reason)
> +
>  			# 500 - Internal Server Error
>  			elif e.code == 500:
>  				raise
> DDNSInternalServerError(e.reason)