A cli tool to quickly create and manage nginx server blocks.
https://up.js.org
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27 lines
474 B
27 lines
474 B
'use strict';
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// Parses a string, and returns true if it is an IP Address.
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function isIP(str) {
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const segments = str
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.split(".")
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.map(Number);
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if (!segments.length === 4) {
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return false;
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}
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for(let i = 0; i < segments.length; i++) {
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const segment = segments[i];
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if (Number.isNaN(segment)) {
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return false;
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}
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if (segment < 1 || segment > 255) {
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return false;
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}
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}
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if (segments[3] > 254) {
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return false;
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}
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return true;
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}
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module.exports = isIP;
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