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Versions: 10
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Stored size: 1.74 KB
Contents
# frozen_string_literal: true
require 'ipaddr'
module Dyndnsd
class Helper
# @param hostname [String]
# @param domain [String]
# @return [Boolean]
def self.fqdn_valid?(hostname, domain)
return false if hostname.length < domain.length + 2
return false if !hostname.end_with?(domain)
name = hostname.chomp(domain)
return false if !name.match(/^[a-zA-Z0-9_-]+\.$/)
true
end
# @param ip [String]
# @return [Boolean]
def self.ip_valid?(ip)
IPAddr.new(ip)
true
rescue ArgumentError
false
end
# @param username [String]
# @param password [String]
# @param users [Hash]
# @return [Boolean]
def self.user_allowed?(username, password, users)
(users.key? username) && (users[username]['password'] == password)
end
# @param hostname [String]
# @param myips [Array]
# @param hosts [Hash]
# @return [Boolean]
def self.changed?(hostname, myips, hosts)
# myips order is always deterministic
((!hosts.include? hostname) || (hosts[hostname] != myips)) && !myips.empty?
end
# @param operation [String]
# @param block [Proc]
# @return [void]
def self.span(operation, &block)
scope = OpenTracing.start_active_span(operation)
span = scope.span
span.set_tag('component', 'dyndnsd')
span.set_tag('span.kind', 'server')
begin
block.call(span)
rescue StandardError => e
span.set_tag('error', true)
span.log_kv(
event: 'error',
'error.kind': e.class.to_s,
'error.object': e,
message: e.message,
stack: e.backtrace&.join("\n") || ''
)
raise e
ensure
scope.close
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems