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// GENERATED FILE. DO NOT EDIT.
var ipCodec = (function(exports) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.decode = decode;
exports.encode = encode;
exports.familyOf = familyOf;
exports.name = void 0;
exports.sizeOf = sizeOf;
exports.v6 = exports.v4 = void 0;
const v4Regex = /^(\d{1,3}\.){3,3}\d{1,3}$/;
const v4Size = 4;
const v6Regex = /^(::)?(((\d{1,3}\.){3}(\d{1,3}){1})?([0-9a-f]){0,4}:{0,2}){1,8}(::)?$/i;
const v6Size = 16;
const v4 = {
name: 'v4',
size: v4Size,
isFormat: ip => v4Regex.test(ip),
encode(ip, buff, offset) {
offset = ~~offset;
buff = buff || new Uint8Array(offset + v4Size);
const max = ip.length;
let n = 0;
for (let i = 0; i < max;) {
const c = ip.charCodeAt(i++);
if (c === 46) {
// "."
buff[offset++] = n;
n = 0;
} else {
n = n * 10 + (c - 48);
}
}
buff[offset] = n;
return buff;
},
decode(buff, offset) {
offset = ~~offset;
return `${buff[offset++]}.${buff[offset++]}.${buff[offset++]}.${buff[offset]}`;
}
};
exports.v4 = v4;
const v6 = {
name: 'v6',
size: v6Size,
isFormat: ip => ip.length > 0 && v6Regex.test(ip),
encode(ip, buff, offset) {
offset = ~~offset;
let end = offset + v6Size;
let fill = -1;
let hexN = 0;
let decN = 0;
let prevColon = true;
let useDec = false;
buff = buff || new Uint8Array(offset + v6Size); // Note: This algorithm needs to check if the offset
// could exceed the buffer boundaries as it supports
// non-standard compliant encodings that may go beyond
// the boundary limits. if (offset < end) checks should
// not be necessary...
for (let i = 0; i < ip.length; i++) {
let c = ip.charCodeAt(i);
if (c === 58) {
// :
if (prevColon) {
if (fill !== -1) {
// Not Standard! (standard doesn't allow multiple ::)
// We need to treat
if (offset < end) buff[offset] = 0;
if (offset < end - 1) buff[offset + 1] = 0;
offset += 2;
} else if (offset < end) {
// :: in the middle
fill = offset;
}
} else {
// : ends the previous number
if (useDec === true) {
// Non-standard! (ipv4 should be at end only)
// A ipv4 address should not be found anywhere else but at
// the end. This codec also support putting characters
// after the ipv4 address..
if (offset < end) buff[offset] = decN;
offset++;
} else {
if (offset < end) buff[offset] = hexN >> 8;
if (offset < end - 1) buff[offset + 1] = hexN & 0xff;
offset += 2;
}
hexN = 0;
decN = 0;
}
prevColon = true;
useDec = false;
} else if (c === 46) {
// . indicates IPV4 notation
if (offset < end) buff[offset] = decN;
offset++;
decN = 0;
hexN = 0;
prevColon = false;
useDec = true;
} else {
prevColon = false;
if (c >= 97) {
c -= 87; // a-f ... 97~102 -87 => 10~15
} else if (c >= 65) {
c -= 55; // A-F ... 65~70 -55 => 10~15
} else {
c -= 48; // 0-9 ... starting from charCode 48
decN = decN * 10 + c;
} // We don't know yet if its a dec or hex number
hexN = (hexN << 4) + c;
}
}
if (prevColon === false) {
// Commiting last number
if (useDec === true) {
if (offset < end) buff[offset] = decN;
offset++;
} else {
if (offset < end) buff[offset] = hexN >> 8;
if (offset < end - 1) buff[offset + 1] = hexN & 0xff;
offset += 2;
}
} else if (fill === 0) {
// Not Standard! (standard doesn't allow multiple ::)
// This means that a : was found at the start AND end which means the
// end needs to be treated as 0 entry...
if (offset < end) buff[offset] = 0;
if (offset < end - 1) buff[offset + 1] = 0;
offset += 2;
} else if (fill !== -1) {
// Non-standard! (standard doens't allow multiple ::)
// Here we find that there has been a :: somewhere in the middle
// and the end. To treat the end with priority we need to move all
// written data two bytes to the right.
offset += 2;
for (let i = Math.min(offset - 1, end - 1); i >= fill + 2; i--) {
buff[i] = buff[i - 2];
}
buff[fill] = 0;
buff[fill + 1] = 0;
fill = offset;
}
if (fill !== offset && fill !== -1) {
// Move the written numbers to the end while filling the everything
// "fill" to the bytes with zeros.
if (offset > end - 2) {
// Non Standard support, when the cursor exceeds bounds.
offset = end - 2;
}
while (end > fill) {
buff[--end] = offset < end && offset > fill ? buff[--offset] : 0;
}
} else {
// Fill the rest with zeros
while (offset < end) {
buff[offset++] = 0;
}
}
return buff;
},
decode(buff, offset) {
offset = ~~offset;
let result = '';
for (let i = 0; i < v6Size; i += 2) {
if (i !== 0) {
result += ':';
}
result += (buff[offset + i] << 8 | buff[offset + i + 1]).toString(16);
}
return result.replace(/(^|:)0(:0)*:0(:|$)/, '$1::$3').replace(/:{3,4}/, '::');
}
};
exports.v6 = v6;
const name = 'ip';
exports.name = name;
function sizeOf(ip) {
if (v4.isFormat(ip)) return v4.size;
if (v6.isFormat(ip)) return v6.size;
throw Error(`Invalid ip address: ${ip}`);
}
function familyOf(string) {
return sizeOf(string) === v4.size ? 1 : 2;
}
function encode(ip, buff, offset) {
offset = ~~offset;
const size = sizeOf(ip);
if (typeof buff === 'function') {
buff = buff(offset + size);
}
if (size === v4.size) {
return v4.encode(ip, buff, offset);
}
return v6.encode(ip, buff, offset);
}
function decode(buff, offset, length) {
offset = ~~offset;
length = length || buff.length - offset;
if (length === v4.size) {
return v4.decode(buff, offset, length);
}
if (length === v6.size) {
return v6.decode(buff, offset, length);
}
throw Error(`Invalid buffer size needs to be ${v4.size} for v4 or ${v6.size} for v6.`);
}
return "default" in exports ? exports.default : exports;
})({});
if (typeof define === 'function' && define.amd) define([], function() { return ipCodec; });
else if (typeof module === 'object' && typeof exports==='object') module.exports = ipCodec;
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