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50 lines
1.4 KiB
TypeScript
50 lines
1.4 KiB
TypeScript
import crypto from 'crypto';
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import { customAlphabet } from 'nanoid';
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/* check string is a web link */
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export function strIsLink(str?: string) {
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if (!str) return false;
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if (/^((http|https)?:\/\/|www\.|\/)[^\s/$.?#].[^\s]*$/i.test(str)) return true;
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return false;
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}
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/* hash string */
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export const hashStr = (str: string) => {
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return crypto.createHash('sha256').update(str).digest('hex');
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};
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/* simple text, remove chinese space and extra \n */
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export const simpleText = (text = '') => {
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text = text.trim();
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text = text.replace(/([\u4e00-\u9fa5])[\s&&[^\n]]+([\u4e00-\u9fa5])/g, '$1$2');
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text = text.replace(/\r\n|\r/g, '\n');
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text = text.replace(/\n{3,}/g, '\n\n');
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text = text.replace(/[\s&&[^\n]]{2,}/g, ' ');
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text = text.replace(/[\x00-\x08]/g, ' ');
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return text;
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};
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/*
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replace {{variable}} to value
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*/
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export function replaceVariable(text: string, obj: Record<string, string | number>) {
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for (const key in obj) {
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const val = obj[key];
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if (!['string', 'number'].includes(typeof val)) continue;
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text = text.replace(new RegExp(`{{(${key})}}`, 'g'), String(val));
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}
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return text || '';
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}
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/* replace sensitive link */
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export const replaceSensitiveLink = (text: string) => {
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const urlRegex = /(?<=https?:\/\/)[^\s]+/g;
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return text.replace(urlRegex, 'xxx');
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};
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export const getNanoid = (size = 12) => {
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return customAlphabet('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890', size)();
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};
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