Hiddenden/beef
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This commit is contained in:
Brendan Coles
2016-03-20 16:29:56 +00:00
parent 9d8d1c28a1
commit 2fde87a19b
1 changed files with 40 additions and 42 deletions
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82
core/filters/base.rb
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@@ -7,8 +7,8 @@ module BeEF
module Filters
# Check if the string is not empty and not nil
# @param [String] str String for testing
# @return [Boolean] Whether the string is not empty
# @param [String] str String for testing
# @return [Boolean] Whether the string is not empty
def self.is_non_empty_string?(str)
return false if str.nil?
return false unless str.is_a? String
@@ -17,50 +17,50 @@ module Filters
end
# Check if only the characters in 'chars' are in 'str'
# @param [String] chars List of characters to match
# @param [String] str String for testing
# @return [Boolean] Whether or not the only characters in str are specified in chars
# @param [String] chars List of characters to match
# @param [String] str String for testing
# @return [Boolean] Whether or not the only characters in str are specified in chars
def self.only?(chars, str)
regex = Regexp.new('[^' + chars + ']')
regex.match(str.encode('UTF-8', invalid: :replace, undef: :replace, replace: '')).nil?
end
# Check if one or more characters in 'chars' are in 'str'
# @param [String] chars List of characters to match
# @param [String] str String for testing
# @return [Boolean] Whether one of the characters exists in the string
# @param [String] chars List of characters to match
# @param [String] str String for testing
# @return [Boolean] Whether one of the characters exists in the string
def self.exists?(chars, str)
regex = Regexp.new(chars)
not regex.match(str.encode('UTF-8', invalid: :replace, undef: :replace, replace: '')).nil?
end
# Check for null char
# @param [String] str String for testing
# @return [Boolean] If the string has a null character
# @param [String] str String for testing
# @return [Boolean] If the string has a null character
def self.has_null? (str)
return false unless is_non_empty_string?(str)
exists?('\x00', str)
end
# Check for non-printable char
# @param [String] str String for testing
# @return [Boolean] Whether or not the string has non-printable characters
# @param [String] str String for testing
# @return [Boolean] Whether or not the string has non-printable characters
def self.has_non_printable_char?(str)
return false unless is_non_empty_string?(str)
not only?('[:print:]', str)
end
# Check if num characters only
# @param [String] str String for testing
# @return [Boolean] If the string only contains numbers
# @param [String] str String for testing
# @return [Boolean] If the string only contains numbers
def self.nums_only?(str)
return false unless is_non_empty_string?(str)
only?('0-9', str)
end
# Check if valid float
# @param [String] str String for float testing
# @return [Boolean] If the string is a valid float
# @param [String] str String for float testing
# @return [Boolean] If the string is a valid float
def self.is_valid_float?(str)
return false unless is_non_empty_string?(str)
return false unless only?('0-9\.', str)
@@ -68,45 +68,45 @@ module Filters
end
# Check if hex characters only
# @param [String] str String for testing
# @return [Boolean] If the string only contains hex characters
# @param [String] str String for testing
# @return [Boolean] If the string only contains hex characters
def self.hexs_only?(str)
return false unless is_non_empty_string?(str)
only?('0123456789ABCDEFabcdef', str)
end
# Check if first character is a number
# @param [String] String for testing
# @return [Boolean] If the first character of the string is a number
# @param [String] String for testing
# @return [Boolean] If the first character of the string is a number
def self.first_char_is_num?(str)
return false unless is_non_empty_string?(str)
not (str =~ /^\d.*/).nil?
end
# Check for space characters: \t\n\r\f
# @param [String] str String for testing
# @return [Boolean] If the string has a whitespace character
# @param [String] str String for testing
# @return [Boolean] If the string has a whitespace character
def self.has_whitespace_char?(str)
return false unless is_non_empty_string?(str)
exists?('\s', str)
end
# Check for non word characters: a-zA-Z0-9
# @param [String] str String for testing
# @return [Boolean] If the string only has alphanums
# @param [String] str String for testing
# @return [Boolean] If the string only has alphanums
def self.alphanums_only?(str)
return false unless is_non_empty_string?(str)
only?("a-zA-Z0-9", str)
end
# @overload self.is_valid_ip?(version, ip)
# Checks if the given string is a valid IP address
# Checks if the given string is a valid IP address
# @param [Symbol] version IP version (either <code>:ipv4</code> or <code>:ipv6</code>)
# @param [String] ip string to be tested
# @return [Boolean] true if the string is a valid IP address, otherwise false
#
# @overload self.is_valid_ip?(ip)
# Checks if the given string is either a valid IPv4 or IPv6 address
# Checks if the given string is either a valid IPv4 or IPv6 address
# @param [String] ip string to be tested
# @return [Boolean] true if the string is a valid IPv4 or IPV6 address, otherwise false
def self.is_valid_ip?(version = :both, ip)
@@ -143,18 +143,17 @@ module Filters
end
# Checks if the given string is a valid private IP address
# @param [String] ip string for testing
# @return [Boolean] true if the string is a valid private IP address, otherwise false
# @note Includes RFC1918 private IPv4, private IPv6, and localhost 127.0.0.0/8,
# but does not include local-link addresses.
# @param [String] ip string for testing
# @return [Boolean] true if the string is a valid private IP address, otherwise false
# @note Includes RFC1918 private IPv4, private IPv6, and localhost 127.0.0.0/8, but does not include local-link addresses.
def self.is_valid_private_ip?(ip)
return false unless is_valid_ip?(ip)
return ip =~ /\A(^127\.)|(^192\.168\.)|(^10\.)|(^172\.1[6-9]\.)|(^172\.2[0-9]\.)|(^172\.3[0-1]\.)|(^::1$)|(^[fF][cCdD])\z/ ? true : false
end
# Checks if the given string is a valid TCP port
# @param [String] port string for testing
# @return [Boolean] true if the string is a valid TCP port, otherwise false
# @param [String] port string for testing
# @return [Boolean] true if the string is a valid TCP port, otherwise false
def self.is_valid_port?(port)
valid = false
valid = true if port.to_i > 0 && port.to_i < 2**16
@@ -162,10 +161,9 @@ module Filters
end
# Checks if string is a valid domain name
# @param [String] domain string for testing
# @return [Boolean] If the string is a valid domain name
# @note Only validates the string format. It does not check for a valid TLD since ICANN's list of
# TLD's is not static.
# @param [String] domain string for testing
# @return [Boolean] If the string is a valid domain name
# @note Only validates the string format. It does not check for a valid TLD since ICANN's list of TLD's is not static.
def self.is_valid_domain?(domain)
return false unless is_non_empty_string?(domain)
return true if domain =~ /^[0-9a-z-]+(\.[0-9a-z-]+)*(\.[a-z]{2,}).?$/i
@@ -173,8 +171,8 @@ module Filters
end
# Check for valid browser details characters
# @param [String] str String for testing
# @return [Boolean] If the string has valid browser details characters
# @param [String] str String for testing
# @return [Boolean] If the string has valid browser details characters
# @note This function passes the \302\256 character which translates to the registered symbol (r)
def self.has_valid_browser_details_chars?(str)
return false unless is_non_empty_string?(str)
@@ -182,8 +180,8 @@ module Filters
end
# Check for valid base details characters
# @param [String] str String for testing
# @return [Boolean] If the string has only valid base characters
# @param [String] str String for testing
# @return [Boolean] If the string has only valid base characters
# @note This is for basic filtering where possible all specific filters must be implemented
# @note This function passes the \302\256 character which translates to the registered symbol (r)
def self.has_valid_base_chars?(str)
@@ -192,8 +190,8 @@ module Filters
end
# Verify the yes and no is valid
# @param [String] str String for testing
# @return [Boolean] If the string is either 'yes' or 'no'
# @param [String] str String for testing
# @return [Boolean] If the string is either 'yes' or 'no'
# @todo Confirm this is case insensitive
def self.is_valid_yes_no?(str)
return false if has_non_printable_char?(str)