/**
* Identifier extraction operations.
*
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2016
* @license Apache-2.0
*
* @namespace
*/
var Extract = {
/**
* Runs search operations across the input data using refular expressions.
*
* @private
* @param {string} input
* @param {RegExp} search_regex
* @param {RegExp} remove_regex - A regular expression defining results to remove from the
* final list
* @param {boolean} include_total - Whether or not to include the total number of results
* @returns {string}
*/
_search: function(input, search_regex, remove_regex, include_total) {
var output = "",
total = 0,
match;
while (!!(match = search_regex.exec(input))) {
if (remove_regex && remove_regex.test(match[0]))
continue;
total++;
output += match[0] + "\n";
}
if (include_total)
output = "Total found: " + total + "\n\n" + output;
return output;
},
/**
* @constant
* @default
*/
MIN_STRING_LEN: 3,
/**
* @constant
* @default
*/
DISPLAY_TOTAL: false,
/**
* Strings operation.
*
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run_strings: function(input, args) {
var min_len = args[0] || Extract.MIN_STRING_LEN,
display_total = args[1],
strings = "[A-Z\\d/\\-:.,_$%'\"()<>= !\\[\\]{}@]",
regex = new RegExp(strings + "{" + min_len + ",}", "ig");
return Extract._search(input, regex, null, display_total);
},
/**
* @constant
* @default
*/
INCLUDE_IPV4: true,
/**
* @constant
* @default
*/
INCLUDE_IPV6: false,
/**
* @constant
* @default
*/
REMOVE_LOCAL: false,
/**
* Extract IP addresses operation.
*
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run_ip: function(input, args) {
var include_ipv4 = args[0],
include_ipv6 = args[1],
remove_local = args[2],
display_total = args[3],
ipv4 = "(?:(?:\\d|[01]?\\d\\d|2[0-4]\\d|25[0-5])\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d\\d|\\d)(?:\\/\\d{1,2})?",
ipv6 = "((?=.*::)(?!.*::.+::)(::)?([\\dA-F]{1,4}:(:|\\b)|){5}|([\\dA-F]{1,4}:){6})((([\\dA-F]{1,4}((?!\\3)::|:\\b|(?![\\dA-F])))|(?!\\2\\3)){2}|(((2[0-4]|1\\d|[1-9])?\\d|25[0-5])\\.?\\b){4})",
ips = "";
if (include_ipv4 && include_ipv6) {
ips = ipv4 + "|" + ipv6;
} else if (include_ipv4) {
ips = ipv4;
} else if (include_ipv6) {
ips = ipv6;
}
if (ips) {
var regex = new RegExp(ips, "ig");
if (remove_local) {
var ten = "10\\..+",
oneninetwo = "192\\.168\\..+",
oneseventwo = "172\\.(?:1[6-9]|2\\d|3[01])\\..+",
onetwoseven = "127\\..+",
remove_regex = new RegExp("^(?:" + ten + "|" + oneninetwo +
"|" + oneseventwo + "|" + onetwoseven + ")");
return Extract._search(input, regex, remove_regex, display_total);
} else {
return Extract._search(input, regex, null, display_total);
}
} else {
return "";
}
},
/**
* Extract email addresses operation.
*
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run_email: function(input, args) {
var display_total = args[0],
regex = /\w[-.\w]*@[-\w]+(?:\.[-\w]+)*\.[A-Z]{2,4}/ig;
return Extract._search(input, regex, null, display_total);
},
/**
* Extract MAC addresses operation.
*
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run_mac: function(input, args) {
var display_total = args[0],
regex = /[A-F\d]{2}(?:[:-][A-F\d]{2}){5}/ig;
return Extract._search(input, regex, null, display_total);
},
/**
* Extract URLs operation.
*
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run_urls: function(input, args) {
var display_total = args[0],
protocol = "[A-Z]+://",
hostname = "[-\\w]+(?:\\.\\w[-\\w]*)+",
port = ":\\d+",
path = "/[^.!,?;\"'<>()\\[\\]{}\\s\\x7F-\\xFF]*";
path += "(?:[.!,?]+[^.!,?;\"'<>()\\[\\]{}\\s\\x7F-\\xFF]+)*";
var regex = new RegExp(protocol + hostname + "(?:" + port +
")?(?:" + path + ")?", "ig");
return Extract._search(input, regex, null, display_total);
},
/**
* Extract domains operation.
*
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run_domains: function(input, args) {
var display_total = args[0],
protocol = "https?://",
hostname = "[-\\w\\.]+",
tld = "\\.(?:com|net|org|biz|info|co|uk|onion|int|mobi|name|edu|gov|mil|eu|ac|ae|af|de|ca|ch|cn|cy|es|gb|hk|il|in|io|tv|me|nl|no|nz|ro|ru|tr|us|az|ir|kz|uz|pk)+",
regex = new RegExp("(?:" + protocol + ")?" + hostname + tld, "ig");
return Extract._search(input, regex, null, display_total);
},
/**
* @constant
* @default
*/
INCLUDE_WIN_PATH: true,
/**
* @constant
* @default
*/
INCLUDE_UNIX_PATH: true,
/**
* Extract file paths operation.
*
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run_file_paths: function(input, args) {
var include_win_path = args[0],
include_unix_path = args[1],
display_total = args[2],
win_drive = "[A-Z]:\\\\",
win_name = "[A-Z\\d][A-Z\\d\\- '_\\(\\)]{0,61}",
win_ext = "[A-Z\\d]{1,6}",
win_path = win_drive + "(?:" + win_name + "\\\\?)*" + win_name +
"(?:\\." + win_ext + ")?",
unix_path = "(?:/[A-Z\\d.][A-Z\\d\\-.]{0,61})+",
file_paths = "";
if (include_win_path && include_unix_path) {
file_paths = win_path + "|" + unix_path;
} else if (include_win_path) {
file_paths = win_path;
} else if (include_unix_path) {
file_paths = unix_path;
}
if (file_paths) {
var regex = new RegExp(file_paths, "ig");
return Extract._search(input, regex, null, display_total);
} else {
return "";
}
},
/**
* Extract dates operation.
*
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run_dates: function(input, args) {
var display_total = args[0],
date1 = "(?:19|20)\\d\\d[- /.](?:0[1-9]|1[012])[- /.](?:0[1-9]|[12][0-9]|3[01])", // yyyy-mm-dd
date2 = "(?:0[1-9]|[12][0-9]|3[01])[- /.](?:0[1-9]|1[012])[- /.](?:19|20)\\d\\d", // dd/mm/yyyy
date3 = "(?:0[1-9]|1[012])[- /.](?:0[1-9]|[12][0-9]|3[01])[- /.](?:19|20)\\d\\d", // mm/dd/yyyy
regex = new RegExp(date1 + "|" + date2 + "|" + date3, "ig");
return Extract._search(input, regex, null, display_total);
},
/**
* Extract all identifiers operation.
*
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run_all_idents: function(input, args) {
var output = "";
output += "IP addresses\n";
output += Extract.run_ip(input, [true, true, false]);
output += "\nEmail addresses\n";
output += Extract.run_email(input, []);
output += "\nMAC addresses\n";
output += Extract.run_mac(input, []);
output += "\nURLs\n";
output += Extract.run_urls(input, []);
output += "\nDomain names\n";
output += Extract.run_domains(input, []);
output += "\nFile paths\n";
output += Extract.run_file_paths(input, [true, true]);
output += "\nDates\n";
output += Extract.run_dates(input, []);
return output;
},
};
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