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Check for hostname validity

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cn
2013-04-27 14:59:25 +02:00
parent d46f226e32
commit bbf0c42141
2 changed files with 33 additions and 3 deletions
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13
lib/dyndnsd.rb
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@ -31,6 +31,7 @@ module Dyndnsd
class Daemon
def initialize(config, db, updater, responder)
@users = config['users']
@domain = config['domain']
@db = db
@updater = updater
@responder = responder
@ -45,6 +46,14 @@ module Dyndnsd
@updater.update(@db)
end
def is_fqdn_valid?(hostname)
return false if hostname.length < @domain.length + 2
return false if not hostname.end_with?(@domain)
name = hostname.chomp(@domain)
return false if not name.match(/^[a-zA-Z0-9_-]+\.$/)
true
end
def call(env)
return @responder.response_for(:method_forbidden) if env["REQUEST_METHOD"] != "GET"
return @responder.response_for(:not_found) if env["PATH_INFO"] != "/nic/update"
@ -55,8 +64,8 @@ module Dyndnsd
hostname = params["hostname"]
# Check if hostname(s) match rules
#return @responder.response_for(:hostname_malformed) if XY
# Check if hostname match rules
return @responder.response_for(:hostname_malformed) if not is_fqdn_valid?(hostname)
user = env["REMOTE_USER"]