6570619529
git-svn-id: https://beef.googlecode.com/svn/trunk@617 b87d56ec-f9c0-11de-8c8a-61c5e9addfc9
90 lines
2.3 KiB
Ruby
90 lines
2.3 KiB
Ruby
module BeEF
|
|
|
|
module Filter
|
|
|
|
# check if the string is not empty and not nil
|
|
def self.is_non_empty_string?(str)
|
|
return false if str.nil?
|
|
return false if not str.is_a? String
|
|
return false if str.empty?
|
|
true
|
|
end
|
|
|
|
# check if only the characters in 'chars' are in 'str'
|
|
def self.only?(chars, str)
|
|
regex = Regexp.new('[^' + chars + ']')
|
|
regex.match(str).nil?
|
|
end
|
|
|
|
# check if one or more characters in 'chars' are in 'str'
|
|
def self.exists?(chars, str)
|
|
regex = Regexp.new(chars)
|
|
not regex.match(str).nil?
|
|
end
|
|
|
|
# check for null char
|
|
def self.has_null? (str)
|
|
return false if not is_non_empty_string?(str)
|
|
exists?('\x00', str)
|
|
end
|
|
|
|
# check for non-printalbe char
|
|
def self.has_non_printable_char?(str)
|
|
return false if not is_non_empty_string?(str)
|
|
not only?('[:print:]', str)
|
|
end
|
|
|
|
# check if num chars only
|
|
def self.nums_only?(str)
|
|
return false if not is_non_empty_string?(str)
|
|
only?('0-9', str)
|
|
end
|
|
|
|
# check if valid float
|
|
def self.is_valid_float?(str)
|
|
return false if not is_non_empty_string?(str)
|
|
return false if not only?('0-9\.', str)
|
|
not (str =~ /^[\d]+\.[\d]+$/).nil?
|
|
end
|
|
|
|
# check if hex chars only
|
|
def self.hexs_only?(str)
|
|
return false if not is_non_empty_string?(str)
|
|
only?('0123456789ABCDEFabcdef', str)
|
|
end
|
|
|
|
# check if first char is a num
|
|
def self.first_char_is_num?(str)
|
|
return false if not is_non_empty_string?(str)
|
|
not (str =~ /^\d.*/).nil?
|
|
end
|
|
|
|
# check for space chars: \t\n\r\f
|
|
def self.has_whitespace_char?(str)
|
|
return false if not is_non_empty_string?(str)
|
|
exists?('\s', str)
|
|
end
|
|
|
|
# check for non word chars: a-zA-Z0-9
|
|
def self.alphanums_only?(str)
|
|
return false if not is_non_empty_string?(str)
|
|
only?("a-zA-Z0-9", str)
|
|
end
|
|
|
|
# check if valid ip address string
|
|
# TODO add unit tests
|
|
def self.is_valid_ip?(ip)
|
|
return true if ip =~ /^(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})?$/
|
|
false
|
|
end
|
|
|
|
# check for valid browser details chars
|
|
def self.has_valid_browser_details_chars?(str)
|
|
return false if not is_non_empty_string?(str)
|
|
not (str =~ /[^\w\d\s()-.,;:_\/!\302\256]/).nil? # \302\256 is the (r) character
|
|
end
|
|
|
|
end
|
|
|
|
end
|