Files
beef/core/main/configuration.rb
scotty.b.brown@gmail.com 35f62714b1 Moving nextgen from a branch to the trunk!!!
git-svn-id: https://beef.googlecode.com/svn/trunk@908 b87d56ec-f9c0-11de-8c8a-61c5e9addfc9
2011-04-20 07:54:56 +00:00

93 lines
2.3 KiB
Ruby

module BeEF
module Core
#
# Parses the user configuration file for beef.
#
# Example:
#
# configuration = BeEF::Core::Configuration.instance
# p configuration.get('beef.http.host) # => "0.0.0.0"
#
class Configuration
include Singleton
#
# Constructor
#
def initialize(configuration_file="#{$root_dir}/config.yaml")
# argument type checking
raise Exception::TypeError, '"configuration_file" needs to be a string' if not configuration_file.string?
# test to make sure file exists
raise Exception::TypeError, 'Configuration yaml cannot be found' if not File.exist?(configuration_file)
#open base config
@config = self.load(configuration_file)
# set default value if key? does not exist
@config.default = nil
load_extensions_config
load_modules_config
end
#
# Loads yaml file
#
def load(file)
return nil if not File.exists?(file)
raw = File.read(file)
return YAML.load(raw)
end
#
# Returns the value of a selected key in the configuration file.
#
def get(key)
subkeys = key.split('.')
lastkey = subkeys.pop
subhash = subkeys.inject(@config) do |hash, k|
hash[k]
end
return (subhash != nil and subhash.has_key?(lastkey)) ? subhash[lastkey] : nil
end
#
# Sets the give key value pair to the config instance
#
def set(key, value)
subkeys = key.split('.').reverse
return false if subkeys.length == 0
hash = {subkeys.shift.to_s => value}
subkeys.each{|v|
hash = {v.to_s => hash}
}
@config = @config.recursive_merge(hash)
return true
end
#
# load extensions configurations
#
def load_extensions_config
Dir.glob("#{$root_dir}/extensions/*/config.yaml") do | cf |
y = self.load(cf)
if y != nil
@config = y.recursive_merge(@config)
end
end
end
#
# Load module configurations
#
def load_modules_config
Dir.glob("#{$root_dir}/modules/**/*/config.yaml") do | cf |
y = self.load(cf)
if y != nil
@config = y.recursive_merge(@config)
end
end
end
end
end
end