@toreda/strong-types
Version:
Better TypeScript code in fewer lines.
66 lines (64 loc) • 2.33 kB
JavaScript
;
/**
* MIT License
*
* Copyright (c) 2019 - 2021 Toreda, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.isValidSegment = exports.isIpv6Addr = void 0;
function isIpv6Addr(current) {
if (typeof current != 'string') {
return false;
}
const trimmed = current.trim();
if (!trimmed) {
return false;
}
const sections = trimmed.split(':');
const doubleColonSegment = trimmed.split('::');
const doubleColon = '::';
if (!sections.length) {
return false;
}
if (sections.length > 8) {
return false;
}
const validatedSegment = sections.every(exports.isValidSegment);
if (sections.length === 8 && !validatedSegment && current.includes(doubleColon)) {
return false;
}
if (sections.length <= 7 && !validatedSegment && doubleColonSegment.length >= 3) {
return false;
}
return true;
}
exports.isIpv6Addr = isIpv6Addr;
const isValidSegment = (segment) => {
if (typeof segment !== 'string') {
return false;
}
const hex = parseInt(segment, 16);
if (isNaN(hex)) {
return false;
}
return hex >= 0x0 && hex <= 0xffff;
};
exports.isValidSegment = isValidSegment;