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permission.rb
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permission.rb
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module Piculet
class DSL
class EC2
class SecurityGroup
class Permissions
class Permission
def initialize(security_group, direction, protocol_prot_range, &block)
@security_group = security_group
@direction = direction
@protocol_prot_range = protocol_prot_range
@result = OpenStruct.new
instance_eval(&block)
end
def result
unless @result.ip_ranges or @result.groups
raise "SecurityGroup `#{@security_group}`: #{@direction}: #{@protocol_prot_range}: `ip_ranges` or `groups` is required"
end
@result
end
private
def ip_ranges(*values)
if values.empty?
raise ArgumentError, "SecurityGroup `#{@security_group}`: #{@direction}: #{@protocol_prot_range}: `ip_ranges`: wrong number of arguments (0 for 1..)"
end
values.each do |ip_range|
unless ip_range =~ %r|\d{1,3}\.\d{1,3}\.\d{1,3}/\d{1,2}|
raise "SecurityGroup `#{@security_group}`: #{@direction}: #{@protocol_prot_range}: `ip_ranges`: invalid ip range: #{ip_range}"
end
ip, range = ip_range.split('/', 2)
unless ip.split('.').all? {|i| (0..255).include?(i.to_i) } and (0..32).include?(range.to_i)
raise "SecurityGroup `#{@security_group}`: #{@direction}: #{@protocol_prot_range}: `ip_ranges`: invalid ip range: #{ip_range}"
end
end
if values.size != values.uniq.size
raise "SecurityGroup `#{@security_group}\: #{@direction}: #{@protocol_prot_range}: `ip_ranges`: duplicate ip ranges"
end
@result.ip_ranges = values
end
def groups(*values)
if values.empty?
raise ArgumentError, "SecurityGroup `#{@security_group}`: #{@direction}: #{@protocol_prot_range}: `groups`: wrong number of arguments (0 for 1..)"
end
values.each do |group|
unless [String, Array].any? {|i| group.kind_of?(i) }
raise "SecurityGroup `#{@security_group}`: #{@direction}: #{@protocol_prot_range}: `groups`: invalid type: #{group}"
end
end
if values.size != values.uniq.size
raise "SecurityGroup `#{@security_group}\: #{@direction}: #{@protocol_prot_range}: `groups`: duplicate groups"
end
@result.groups = values
end
end # Permission
end # Permissions
end # SecurityGroup
end # EC2
end # DSL
end # Piculet