lib/instance_agent/plugins/codedeploy/application_specification/ace_info.rb
module InstanceAgent
module Plugins
module CodeDeployPlugin
module ApplicationSpecification
#Helper Class for storing an ace
class AceInfo
attr_reader :default, :type, :name, :read, :write, :execute
def initialize(ace, internal=false)
@default = false
@type = nil
@name = ""
parts = ace.split(":", -1).reverse
if (parts.length < 2) || (parts.length > 4)
raise AppSpecValidationException, "The deployment failed because of a problem with the acls permission settings in the application specification file. Invalid acl entry (#{ace})."
end
if (parts.length == 4)
if !(parts[3].eql?("d") || (parts[3].eql?("default")))
raise AppSpecValidationException, "The deployment failed because of a problem with the acls permission settings in the application specification file. Invalid acl entry (#{ace})."
end
@default = true
end
if parts.length >= 3
if parts[2].eql?("d") || (parts[2].eql?("default"))
if @default
raise AppSpecValidationException, "The deployment failed because of a problem with the acls permission settings in the application specification file. Invalid acl entry (#{ace})."
end
@default = true
elsif parts[2].eql?("m") || parts[2].eql?("mask")
@type = "mask"
elsif parts[2].eql?("o") || parts[2].eql?("other")
@type = "other"
elsif parts[2].eql?("g") || parts[2].eql?("group")
@type = "group"
elsif parts[2].eql?("u") || parts[2].eql?("user")
@type = "user"
else
raise AppSpecValidationException, "The deployment failed because of a problem with the acls permission settings in the application specification file. Invalid acl entry (#{ace})."
end
end
if parts[1].eql?("m") || parts[1].eql?("mask")
if @type.nil?
@type = "mask"
else
@name = "mask"
end
elsif parts[1].eql?("o") || parts[1].eql?("other")
if @type.nil?
@type = "other"
else
@name = "other"
end
else
if @type.nil?
@type = "user"
end
@name = parts[1]
end
if (@type.eql?("mask") || @type.eql?("other")) && !@name.empty?
raise AppSpecValidationException, "The deployment failed because of a problem with the acls permission settings in the application specification file. Invalid acl entry (#{ace})."
end
if (!internal && !@default && !@type.eql?("mask") && @name.empty?)
raise AppSpecValidationException, "The deployment failed because of a problem with the acls permission settings in the application specification file. Use mode to set the base acl entry (#{ace}). Update the permissions section of the AppSpec file, and then try again."
end
perm_chars = parts[0].chars.entries
if (perm_chars.length == 1) && (perm_chars[0].ord >= "0".ord) && (perm_chars[0].ord <= "7".ord)
perm_bits = to_bits(perm_chars[0].to_i, 3)
@read = (perm_bits[0] == 1)
@write = (perm_bits[1] == 1)
@execute = (perm_bits[2] == 1)
else
@read = false
@write = false
@execute = false
perm_chars.each do |perm|
case perm
when 'r'
@read = true
when 'w'
@write = true
when 'x'
@execute = true
when '-'
else
raise AppSpecValidationException, "The deployment failed because the access control list (ACL) named #{ace} in the application specification file contains an invalid character (#{perm}). Correct the ACL in the hooks section of the AppSpec file, and then try again."
end
end
end
end
#format [default:][user|group|mask|other]:[name]:(r|-)(w|-)(x|-)
def get_ace
result = "";
if @default
result = "default:"
end
result = result + type + ":" + name + ":"
if (@read)
result = result + "r"
else
result = result + "-"
end
if (@write)
result = result + "w"
else
result = result + "-"
end
if (@execute)
result = result + "x"
else
result = result + "-"
end
result
end
def to_bits(num, min_size)
bits = Array.new(min_size, 0)
num_bits = num.to_s(2).split("")
diff = [0, min_size - num_bits.length].max
num_bits.map.with_index {|n,i| bits[i+diff] = n.to_i}
bits
end
end
end
end
end
end