is-in-subnet/browser/isInSubnet.min.js

Check if an IPv4 or IPv6 address is contained in the given CIDR subnet

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/*! *****************************************************************************
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    ***************************************************************************** */function n(){for(var r=0,n=0,e=arguments.length;n<e;n++)r+=arguments[n].length;var t=Array(r),i=0;for(n=0;n<e;n++)for(var o=arguments[n],a=0,u=o.length;a<u;a++,i++)t[i]=o[a];return t}var e="(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])",t="("+e+"[.]){3}"+e,i=new RegExp("^"+t+"$"),o="(?:[0-9a-fA-F]{1,4})",a=new RegExp("^((?:"+o+":){7}(?:"+o+"|:)|(?:"+o+":){6}(?:"+t+"|:"+o+"|:)|(?:"+o+":){5}(?::"+t+"|(:"+o+"){1,2}|:)|(?:"+o+":){4}(?:(:"+o+"){0,1}:"+t+"|(:"+o+"){1,3}|:)|(?:"+o+":){3}(?:(:"+o+"){0,2}:"+t+"|(:"+o+"){1,4}|:)|(?:"+o+":){2}(?:(:"+o+"){0,3}:"+t+"|(:"+o+"){1,5}|:)|(?:"+o+":){1}(?:(:"+o+"){0,4}:"+t+"|(:"+o+"){1,6}|:)|(?::((?::"+o+"){0,5}:"+t+"|(?::"+o+"){1,7}|:)))(%[0-9a-zA-Z]{1,})?$");function u(r){return i.test(r)}function s(r){return a.test(r)}function f(r){return u(r)?4:s(r)?6:0}var v={ipv4:["127.0.0.0/8"],ipv6:["::1/128"]},c={ipv4:["10.0.0.0/8","172.16.0.0/12","192.168.0.0/16"],ipv6:["fe80::/10","fc00::/7"]},p={ipv4:["0.0.0.0/8","100.64.0.0/10","169.254.0.0/16","192.0.0.0/24","192.0.2.0/24","192.88.99.0/24","198.18.0.0/15","198.51.100.0/24","203.0.113.0/24","224.0.0.0/4","240.0.0.0/4","255.255.255.255/32"],ipv6:["::/128","64:ff9b::/96","100::/64","2001::/32","2001:10::/28","2001:20::/28","2001:db8::/32","2002::/16","ff00::/8"]};function l(r){if(!u(r))throw new Error("not a valid IPv4 address: "+r);var n=r.split(".");return(parseInt(n[0],10)<<24)+(parseInt(n[1],10)<<16)+(parseInt(n[2],10)<<8)+parseInt(n[3],10)>>>0}function d(r){if(Array.isArray(r)){var n=r.map((function(r){return h(r)}));return function(r){var e=l(r);return n.some((function(r){return r(e)}))}}var e=h(r);return function(r){var n=l(r);return e(n)}}function h(r){var n=r.split("/"),e=n[0],t=n[1],i=parseInt(t,10);if(!e||!Number.isInteger(i))throw new Error("not a valid IPv4 subnet: "+r);if(i<0||i>32)throw new Error("not a valid IPv4 prefix length: "+i+" (from "+r+")");var o=l(e);return function(r){return 0===i||o>>32-i===r>>32-i}}var I={};function w(r){return"private"in I==!1&&(I.private=d(c.ipv4)),I.private(r)}function P(r){return"localhost"in I==!1&&(I.localhost=d(v.ipv4)),I.localhost(r)}function m(r){return"reserved"in I==!1&&(I.reserved=d(p.ipv4)),I.reserved(r)}function b(r){return"special"in I==!1&&(I.special=d(n(c.ipv4,v.ipv4,p.ipv4))),I.special(r)}var g=Object.freeze({__proto__:null,isInSubnet:function(r,n){return d(n)(r)},createChecker:d,isPrivate:w,isLocalhost:P,isReserved:m,isSpecial:b}),y=/\./,A=/^(.+:ffff:)(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})(?:%.+)?$/,E=/:/,S=/::/;function _(r){var n=r.match(A);if(!n||!u(n[2]))throw new Error("not a mapped IPv4 address: "+r);return n[2]}function x(r){if(!s(r))throw new Error("not a valid IPv6 address: "+r);if(y.test(r))return x(function(r){var n=r.match(A);if(!n||!u(n[2]))throw new Error("not a mapped IPv4 address: "+r);var e=n[1],t=n[2].split(y).map((function(r){return parseInt(r,10)}));return""+e+((t[0]<<8)+t[1]).toString(16)+":"+((t[2]<<8)+t[3]).toString(16)}(r));var n=r.split(S),e=n[0],t=n[1],i=e&&e.split(E)||[],o=t&&t.split(E)||[],a=new Array(8-(i.length+o.length));return i.concat(a,o)}function R(r){if(Array.isArray(r)){var n=r.map((function(r){return k(r)}));return function(r){var e=x(r);return n.some((function(r){return r(e)}))}}var e=k(r);return function(r){var n=x(r);return e(n)}}function k(r){var n=r.split("/"),e=n[0],t=n[1],i=parseInt(t,10);if(!e||!Number.isInteger(i))throw new Error("not a valid IPv6 CIDR subnet: "+r);if(i<0||i>128)throw new Error("not a valid IPv6 prefix length: "+i+" (from "+r+")");var o=x(e);return function(r){for(var n=0;n<8;++n){var e=Math.min(i-16*n,16);if(e<=0)break;if((o[n]&&parseInt(o[n],16)||0)>>16-e!==(r[n]&&parseInt(r[n],16)||0)>>16-e)return!1}return!0}}var C={};function M(r){return"private"in C==!1&&(C.private=R(c.ipv6)),C.private(r)}function j(r){return"localhost"in C==!1&&(C.localhost=R(v.ipv6)),C.localhost(r)}function z(r){if("mapped"in C==!1&&(C.mapped=R("::ffff:0:0/96")),C.mapped(r)){var n=r.match(A);return Boolean(n&&u(n[2]))}return!1}function L(r){return"reserved"in C==!1&&(C.reserved=R(p.ipv6)),C.reserved(r)}function O(r){return"special"in C==!1&&(C.special=R(n(c.ipv6,v.ipv6,p.ipv6))),C.special(r)}var $=Object.freeze({__proto__:null,extractMappedIpv4:_,isInSubnet:function(r,n){return R(n)(r)},createChecker:R,isPrivate:M,isLocalhost:j,isIPv4MappedAddress:z,isReserved:L,isSpecial:O});function N(r,n){return T(n)(r)}function T(r){if(!Array.isArray(r))return T([r]);var n=r.reduce((function(r,n){return r[f(n.split("/")[0])].push(n),r}),{0:[],4:[],6:[]});if(0!==n[0].length)throw new Error("some subnets are not valid IP addresses: "+n[0]);var e=d(n[4]),t=R(n[6]);return function(r){if(!f(r))throw new Error("not a valid IPv4 or IPv6 address: "+r);return s(r)&&z(r)?t(r)||e(_(r)):s(r)?t(r):e(r)}}var B=N;r.IPv4=g,r.IPv6=$,r.check=B,r.createChecker=T,r.isIP=f,r.isIPv4=u,r.isIPv4MappedAddress=function(r){return!!s(r)&&z(r)},r.isIPv6=s,r.isInSubnet=N,r.isLocalhost=function(r){return s(r)?z(r)?P(_(r)):j(r):P(r)},r.isPrivate=function(r){return s(r)?z(r)?w(_(r)):M(r):w(r)},r.isReserved=function(r){return s(r)?z(r)?m(_(r)):L(r):m(r)},r.isSpecial=function(r){return s(r)?z(r)?b(_(r)):O(r):b(r)},Object.defineProperty(r,"__esModule",{value:!0})}));
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