mirror of https://github.com/cmur2/dyndnsd.git
42 lines
1015 B
Ruby
42 lines
1015 B
Ruby
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require 'ipaddr'
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module Dyndnsd
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class Helper
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def self.fqdn_valid?(hostname, domain)
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return false if hostname.length < domain.length + 2
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return false if !hostname.end_with?(domain)
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name = hostname.chomp(domain)
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return false if !name.match(/^[a-zA-Z0-9_-]+\.$/)
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true
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end
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def self.ip_valid?(ip)
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IPAddr.new(ip)
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return true
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rescue ArgumentError
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return false
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end
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def self.user_allowed?(username, password, users)
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(users.key? username) && (users[username]['password'] == password)
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end
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def self.changed?(hostname, myips, hosts)
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# myips order is always deterministic
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((!hosts.include? hostname) || (hosts[hostname] != myips)) && !myips.empty?
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end
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def self.span(operation, &block)
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span = OpenTracing.start_span(operation)
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span.set_tag('component', 'dyndnsd')
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span.set_tag('span.kind', 'server')
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begin
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block.call(span)
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ensure
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span.finish
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end
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end
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end
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end
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