Accidently sent email - please excuse the noise.

- Stefan
> * Add patch to support listing of token providers.
> * Add fix to proper encode python string.
> 
> Signed-off-by: Stefan Schantl <stefan.schantl(a)ipfire.org>
> ---
>  lfs/ddns                                      |   2 +
>  ...13-add-option-to-list-token-provider.patch | 292
> ++++++++++++++++++
>  .../ddns-013-proper-encode-string.patch       |  24 ++
>  3 files changed, 318 insertions(+)
>  create mode 100644 src/patches/ddns-013-add-option-to-list-token-
> provider.patch
>  create mode 100644 src/patches/ddns-013-proper-encode-string.patch
> 
> diff --git a/lfs/ddns b/lfs/ddns
> index 2a6dbca2b..98b374ed1 100644
> --- a/lfs/ddns
> +++ b/lfs/ddns
> @@ -75,6 +75,8 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
>  	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/ddns-013-
> dyfi-use-https.patch
>  	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/ddns-013-
> ddnss-fix-unhandled-exeption-on-update-patch
>  	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/ddns-013-
> duckdns-new-api.patch
> +	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/ddns-013-
> add-option-to-list-token-provider.patch
> +	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/ddns-013-
> proper-encode-string.patch
>  
>  	cd $(DIR_APP) && [ -x "configure" ] || sh ./autogen.sh
>  	cd $(DIR_APP) && ./configure \
> diff --git a/src/patches/ddns-013-add-option-to-list-token-
> provider.patch b/src/patches/ddns-013-add-option-to-list-token-
> provider.patch
> new file mode 100644
> index 000000000..7603422a2
> --- /dev/null
> +++ b/src/patches/ddns-013-add-option-to-list-token-provider.patch
> @@ -0,0 +1,292 @@
> +commit 287b2bfe7bf5e0639da9227a8c7893ce40d298ae
> +Author: Stefan Schantl <stefan.schantl(a)ipfire.org>
> +Date:   Wed Dec 2 20:31:19 2020 +0100
> +
> +    Add option to list provider with token support.
> +    
> +    This option can be used to get a list of all known provider
> which support
> +    a token based authentication method.
> +    
> +    In order to provide this feature the provider details has been
> extended
> +    to contain the information if a provider supports this
> authentication
> +    method or not.
> +    
> +    Signed-off-by: Stefan Schantl <stefan.schantl(a)ipfire.org>
> +
> +diff --git a/ddns.in b/ddns.in
> +old mode 100644
> +new mode 100755
> +index 0e377e7..538e4b0
> +--- a/ddns.in
> ++++ b/ddns.in
> +@@ -49,6 +49,10 @@ def main():
> + 	p_list_providers = subparsers.add_parser("list-providers",
> + 		help=_("List all available providers"))
> + 
> ++	# list-token-provider
> ++	p_list_token_provider = subparsers.add_parser("list-token-
> provider",
> ++		help=_("List all providers which supports
> authentication via token"))
> ++
> + 	# update
> + 	p_update = subparsers.add_parser("update", help=_("Update DNS
> record"))
> + 	p_update.add_argument("hostname")
> +@@ -85,6 +89,10 @@ def main():
> + 		provider_names = d.get_provider_names()
> + 		print("\n".join(provider_names))
> + 
> ++	elif args.subparsers_name == "list-token-providers":
> ++		token_provider = d.get_provider_with_token_support()
> ++		print("\n".join(token_provider))
> ++
> + 	elif args.subparsers_name == "update":
> + 		d.updateone(hostname=args.hostname, force=args.force)
> + 
> +diff --git a/src/ddns/__init__.py b/src/ddns/__init__.py
> +index 3e43fa7..ca232bf 100644
> +--- a/src/ddns/__init__.py
> ++++ b/src/ddns/__init__.py
> +@@ -86,6 +86,20 @@ class DDNSCore(object):
> + 		"""
> + 		return sorted(self.providers.keys())
> + 
> ++	def get_provider_with_token_support(self):
> ++		"""
> ++			Returns a list with names of all registered
> providers
> ++			which support token based authtentication.
> ++		"""
> ++
> ++		token_provider = []
> ++
> ++		for handle, provider in sorted(self.providers.items()):
> ++			if provider.supports_token_auth is True:
> ++				token_provider.append(handle)
> ++
> ++		return sorted(token_provider)
> ++
> + 	def load_configuration(self, filename):
> + 		logger.debug(_("Loading configuration file %s") %
> filename)
> + 
> +diff --git a/src/ddns/providers.py b/src/ddns/providers.py
> +index a1ca3f3..b0066d5 100644
> +--- a/src/ddns/providers.py
> ++++ b/src/ddns/providers.py
> +@@ -73,6 +73,10 @@ class DDNSProvider(object):
> + 	# Required to remove AAAA records if IPv6 is absent again.
> + 	can_remove_records = True
> + 
> ++	# True if the provider supports authentication via a random
> ++	# generated token instead of username and password.
> ++	supports_token_auth = True
> ++
> + 	@staticmethod
> + 	def supported():
> + 		"""
> +@@ -352,6 +356,10 @@ class DDNSProtocolDynDNS2(object):
> + 	# The DynDNS protocol version 2 does not allow to remove
> records
> + 	can_remove_records = False
> + 
> ++	# The DynDNS protocol version 2 only supports authentication
> via
> ++	# username and password.
> ++	supports_token_auth = False
> ++
> + 	def prepare_request_data(self, proto):
> + 		data = {
> + 			"hostname" : self.hostname,
> +@@ -440,6 +448,7 @@ class DDNSProviderAllInkl(DDNSProvider):
> + 
> + 	url = "http://dyndns.kasserver.com"
> + 	can_remove_records = False
> ++	supports_token_auth = False
> + 
> + 	def update(self):
> + 		# There is no additional data required so we directly
> can
> +@@ -464,6 +473,8 @@ class DDNSProviderBindNsupdate(DDNSProvider):
> + 
> + 	DEFAULT_TTL = 60
> + 
> ++	supports_token_auth = False
> ++
> + 	@staticmethod
> + 	def supported():
> + 		# Search if the nsupdate utility is available
> +@@ -550,6 +561,7 @@ class DDNSProviderChangeIP(DDNSProvider):
> + 
> + 	url = "https://nic.changeip.com/nic/update"
> + 	can_remove_records = False
> ++	supports_token_auth = False
> + 
> + 	def update_protocol(self, proto):
> + 		data = {
> +@@ -616,6 +628,7 @@ class DDNSProviderDDNSS(DDNSProvider):
> + 
> + 	url = "http://www.ddnss.de/upd.php"
> + 	can_remove_records = False
> ++	supports_token_auth = False
> + 
> + 	def update_protocol(self, proto):
> + 		data = {
> +@@ -678,6 +691,7 @@ class DDNSProviderDHS(DDNSProvider):
> + 
> + 	url = "http://members.dhs.org/nic/hosts"
> + 	can_remove_records = False
> ++	supports_token_auth = False
> + 
> + 	def update_protocol(self, proto):
> + 		data = {
> +@@ -710,6 +724,7 @@ class DDNSProviderDNSpark(DDNSProvider):
> + 
> + 	url = "https://control.dnspark.com/api/dynamic/update.php"
> + 	can_remove_records = False
> ++	supports_token_auth = False
> + 
> + 	def update_protocol(self, proto):
> + 		data = {
> +@@ -758,6 +773,7 @@ class DDNSProviderDtDNS(DDNSProvider):
> + 
> + 	url = "https://www.dtdns.com/api/autodns.cfm"
> + 	can_remove_records = False
> ++	supports_token_auth = False
> + 
> + 	def update_protocol(self, proto):
> + 		data = {
> +@@ -813,6 +829,7 @@ class DDNSProviderDuckDNS(DDNSProvider):
> + 
> + 	url = "https://www.duckdns.org/update"
> + 	can_remove_records = False
> ++	supports_token_auth = True
> + 
> + 	def update(self):
> + 		# Raise an error if no auth details are given.
> +@@ -914,6 +931,7 @@ class DDNSProviderDynUp(DDNSProvider):
> + 
> + 	url = "https://dynup.de/dyn.php"
> + 	can_remove_records = False
> ++	supports_token_auth = False
> + 
> + 	def update_protocol(self, proto):
> + 		data = {
> +@@ -979,6 +997,8 @@ class DDNSProviderEasyDNS(DDNSProvider):
> + 
> + 	url = "http://api.cp.easydns.com/dyn/tomato.php"
> + 
> ++	supports_token_auth = False
> ++
> + 	def update_protocol(self, proto):
> + 		data = {
> + 			"myip"     : self.get_address(proto, "-"),
> +@@ -1032,6 +1052,7 @@ class DDNSProviderDynsNet(DDNSProvider):
> + 	website   = "http://www.dyns.net/"
> + 	protocols = ("ipv4",)
> + 	can_remove_records = False
> ++	supports_token_auth = False
> + 
> + 	# There is very detailed informatio about how to send the
> update request and
> + 	# the possible response codes. (Currently we are using the v1.1
> proto)
> +@@ -1083,6 +1104,7 @@ class
> DDNSProviderEnomCom(DDNSResponseParserXML, DDNSProvider):
> + 
> + 	url = "https://dynamic.name-services.com/interface.asp"
> + 	can_remove_records = False
> ++	supports_token_auth = False
> + 
> + 	def update_protocol(self, proto):
> + 		data = {
> +@@ -1125,6 +1147,7 @@ class DDNSProviderEntryDNS(DDNSProvider):
> + 	# here: https://entrydns.net/help
> + 	url = "https://entrydns.net/records/modify"
> + 	can_remove_records = False
> ++	supports_token_auth = True
> + 
> + 	def update_protocol(self, proto):
> + 		data = {
> +@@ -1165,6 +1188,7 @@ class
> DDNSProviderFreeDNSAfraidOrg(DDNSProvider):
> + 	# page. All used values have been collected by testing.
> + 	url = "https://freedns.afraid.org/dynamic/update.php"
> + 	can_remove_records = False
> ++	supports_token_auth = True
> + 
> + 	def update_protocol(self, proto):
> + 		data = {
> +@@ -1246,6 +1270,7 @@ class DDNSProviderKEYSYSTEMS(DDNSProvider):
> + 
> + 	url = "https://dynamicdns.key-systems.net/update.php"
> + 	can_remove_records = False
> ++	supports_token_auth = False
> + 
> + 	def update_protocol(self, proto):
> + 		address = self.get_address(proto)
> +@@ -1297,6 +1322,8 @@ class
> DDNSProviderLightningWireLabs(DDNSProvider):
> + 	# Information about the format of the HTTPS request is to be
> found
> + 	# https://dns.lightningwirelabs.com/knowledge-base/api/ddns
> + 
> ++	supports_token_auth = True
> ++
> + 	url = "https://dns.lightningwirelabs.com/update"
> + 
> + 	def update(self):
> +@@ -1365,6 +1392,7 @@ class
> DDNSProviderNamecheap(DDNSResponseParserXML, DDNSProvider):
> + 
> + 	url = "https://dynamicdns.park-your-domain.com/update"
> + 	can_remove_records = False
> ++	supports_token_auth = False
> + 
> + 	def update_protocol(self, proto):
> + 		# Namecheap requires the hostname splitted into a host
> and domain part.
> +@@ -1458,6 +1486,8 @@ class
> DDNSProviderNsupdateINFO(DDNSProtocolDynDNS2, DDNSProvider):
> + 	# has not been implemented here, yet.
> + 	can_remove_records = False
> + 
> ++	supports_token_auth = True
> ++
> + 	# After a failed update, there will be no retries
> + 	# https://bugzilla.ipfire.org/show_bug.cgi?id=10603
> + 	holdoff_failure_days = None
> +@@ -1534,6 +1564,7 @@ class DDNSProviderRegfish(DDNSProvider):
> + 
> + 	url = "https://dyndns.regfish.de/"
> + 	can_remove_records = False
> ++	supports_token_auth = True
> + 
> + 	def update(self):
> + 		data = {
> +@@ -1630,6 +1661,7 @@ class DDNSProviderServercow(DDNSProvider):
> + 
> + 	url = "https://www.servercow.de/dnsupdate/update.php"
> + 	can_remove_records = False
> ++	supports_token_auth = False
> + 
> + 	def update_protocol(self, proto):
> + 		data = {
> +@@ -1671,6 +1703,8 @@ class DDNSProviderSPDNS(DDNSProtocolDynDNS2,
> DDNSProvider):
> + 
> + 	url = "https://update.spdyn.de/nic/update"
> + 
> ++	supports_token_auth = True
> ++
> + 	@property
> + 	def username(self):
> + 		return self.get("username") or self.hostname
> +@@ -1774,6 +1808,8 @@ class DDNSProviderZoneedit(DDNSProvider):
> + 	website   = "http://www.zoneedit.com"
> + 	protocols = ("ipv4",)
> + 
> ++	supports_token_auth = False
> ++
> + 	# Detailed information about the request and the response codes
> can be
> + 	# obtained here:
> + 	# http://www.zoneedit.com/doc/api/other.html
> +@@ -1821,6 +1857,7 @@ class DDNSProviderDNSmadeEasy(DDNSProvider):
> + 
> + 	url = "https://cp.dnsmadeeasy.com/servlet/updateip?"
> + 	can_remove_records = False
> ++	supports_token_auth = False
> + 
> + 	def update_protocol(self, proto):
> + 		data = {
> +@@ -1871,6 +1908,7 @@ class DDNSProviderZZZZ(DDNSProvider):
> + 
> + 	url = "https://zzzz.io/api/v1/update"
> + 	can_remove_records = False
> ++	supports_token_auth = True
> + 
> + 	def update_protocol(self, proto):
> + 		data = {
> diff --git a/src/patches/ddns-013-proper-encode-string.patch
> b/src/patches/ddns-013-proper-encode-string.patch
> new file mode 100644
> index 000000000..b101913e8
> --- /dev/null
> +++ b/src/patches/ddns-013-proper-encode-string.patch
> @@ -0,0 +1,24 @@
> +commit 27aea61ba3c8e561c4a5921aeb0ea0986d4d234c
> +Author: Johannes Schwietzke <johannes.schwietzke(a)web.de>
> +Date:   Tue Dec 29 12:07:19 2020 +0100
> +
> +    providers.py: Proper encode string.
> +    
> +    Python 3 memoryview requires an encoded string.
> +    
> +    Signed-off-by: Johannes Schwietzke <johannes.schwietzke(a)web.de>
> +    Signed-off-by: Stefan Schantl <stefan.schantl(a)ipfire.org>
> +
> +diff --git a/src/ddns/providers.py b/src/ddns/providers.py
> +index b0066d5..56e6620 100644
> +--- a/src/ddns/providers.py
> ++++ b/src/ddns/providers.py
> +@@ -547,7 +547,7 @@ class DDNSProviderBindNsupdate(DDNSProvider):
> + 
> + 			logger.debug("  %s" % line)
> + 
> +-		return "\n".join(scriptlet)
> ++		return "\n".join(scriptlet).encode()
> + 
> + 
> + class DDNSProviderChangeIP(DDNSProvider):