Class: Rex::Post::Meterpreter::Extensions::Stdapi::Railgun::ConstManager
- Inherits:
-
Object
- Object
- Rex::Post::Meterpreter::Extensions::Stdapi::Railgun::ConstManager
- Defined in:
- lib/rex/post/meterpreter/extensions/stdapi/railgun/const_manager.rb
Overview
Manages our library of constants
Instance Attribute Summary collapse
-
#consts ⇒ Object
readonly
Returns the value of attribute consts.
Instance Method Summary collapse
- #add_const(name, value) ⇒ Object
-
#initialize(initial_consts = {}) ⇒ ConstManager
constructor
A new instance of ConstManager.
- #is_parseable(s) ⇒ Object
-
#parse(s) ⇒ Object
parses a string constaining constants and returns an integer the string can be either “CONST” or “CONST1 | CONST2”.
-
#select_const_names(const, filter_regex = nil) ⇒ Object
Returns an array of constant names that have a value matching “const” and (optionally) a name that matches “filter_regex”.
Constructor Details
#initialize(initial_consts = {}) ⇒ ConstManager
Returns a new instance of ConstManager.
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# File 'lib/rex/post/meterpreter/extensions/stdapi/railgun/const_manager.rb', line 85 def initialize(initial_consts = {}) @consts = {} initial_consts.each_pair do |name, value| add_const(name, value) end end |
Instance Attribute Details
#consts ⇒ Object (readonly)
Returns the value of attribute consts.
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# File 'lib/rex/post/meterpreter/extensions/stdapi/railgun/const_manager.rb', line 83 def consts @consts end |
Instance Method Details
#add_const(name, value) ⇒ Object
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# File 'lib/rex/post/meterpreter/extensions/stdapi/railgun/const_manager.rb', line 93 def add_const(name, value) consts[name] = value end |
#is_parseable(s) ⇒ Object
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# File 'lib/rex/post/meterpreter/extensions/stdapi/railgun/const_manager.rb', line 116 def is_parseable(s) return !parse(s).nil? end |
#parse(s) ⇒ Object
parses a string constaining constants and returns an integer the string can be either “CONST” or “CONST1 | CONST2”
this function will NOT throw an exception but return “nil” if it can’t parse a string
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# File 'lib/rex/post/meterpreter/extensions/stdapi/railgun/const_manager.rb', line 101 def parse(s) if s.class != String return nil # it's not even a string' end return_value = 0 for one_const in s.split('|') one_const = one_const.strip() if not consts.has_key? one_const return nil # at least one "Constant" is unknown to us end return_value |= consts[one_const] end return return_value end |
#select_const_names(const, filter_regex = nil) ⇒ Object
Returns an array of constant names that have a value matching “const” and (optionally) a name that matches “filter_regex”
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# File 'lib/rex/post/meterpreter/extensions/stdapi/railgun/const_manager.rb', line 124 def select_const_names(const, filter_regex=nil) matches = [] consts.each_pair do |name, value| matches << name if value == const end # Filter matches by name if a filter has been provided unless filter_regex.nil? matches.reject! do |name| name !~ filter_regex end end return matches end |