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@pepperi/ngx-lib

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Pepperi Angular Components and Services

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import { Injectable } from '@angular/core'; import * as i0 from "@angular/core"; export class JwtHelperService { constructor() { } urlBase64Decode(str) { let output = str.replace(/-/g, '+').replace(/_/g, '/'); switch (output.length % 4) { case 0: { break; } case 2: { output += '=='; break; } case 3: { output += '='; break; } default: { throw new Error('Illegal base64url string!'); } } return this.b64DecodeUnicode(output); } // credits for decoder goes to https://github.com/atk b64decode(str) { const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='; let output = ''; str = String(str).replace(/=+$/, ''); if (str.length % 4 === 1) { throw new Error('\'atob\' failed: The string to be decoded is not correctly encoded.'); } for ( // initialize result and counters let bc = 0, bs, buffer, idx = 0; // get next character (buffer = str.charAt(idx++)); // character found in table? initialize bit storage and add its ascii value; ~buffer && ((bs = bc % 4 ? bs * 64 + buffer : buffer), // and if not first of each 4 characters, // convert the first 8 bits to one ascii character bc++ % 4) ? (output += String.fromCharCode(255 & (bs >> ((-2 * bc) & 6)))) : 0) { // try to find character in table (0-63, not found => -1) buffer = chars.indexOf(buffer); } return output; } b64DecodeUnicode(str) { return decodeURIComponent(Array.prototype.map .call(this.b64decode(str), (c) => { return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2); }) .join('')); } decodeToken(token) { if (!token || token === '') { return null; } const parts = token.split('.'); if (parts.length !== 3) { throw new Error('The inspected token doesn\'t appear to be a JWT. Check to make sure it has three parts and see https://jwt.io for more.'); } const decoded = this.urlBase64Decode(parts[1]); if (!decoded) { throw new Error('Cannot decode the token.'); } return JSON.parse(decoded); } getTokenExpirationDate(token) { let decoded; decoded = this.decodeToken(token); if (!decoded || !decoded.hasOwnProperty('exp')) { return null; } const date = new Date(0); date.setUTCSeconds(decoded.exp); return date; } isTokenExpired(token, offsetSeconds) { if (!token || token === '') { return true; } const date = this.getTokenExpirationDate(token); offsetSeconds = offsetSeconds || 0; if (date === null) { return false; } return !(date.valueOf() > new Date().valueOf() + offsetSeconds * 1000); } getAuthScheme(authScheme, request) { if (typeof authScheme === 'function') { return authScheme(request); } return authScheme; } } JwtHelperService.ɵfac = function JwtHelperService_Factory(t) { return new (t || JwtHelperService)(); }; JwtHelperService.ɵprov = i0.ɵɵdefineInjectable({ token: JwtHelperService, factory: JwtHelperService.ɵfac, providedIn: 'root' }); /*@__PURE__*/ (function () { i0.ɵsetClassMetadata(JwtHelperService, [{ type: Injectable, args: [{ providedIn: 'root', }] }], function () { return []; }, null); })(); //# 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{ HttpRequest } from '@angular/common/http';\r\nimport { Injectable, Inject } from '@angular/core';\r\n\r\n@Injectable({\r\n    providedIn: 'root',\r\n})\r\nexport class JwtHelperService {\r\n    constructor() {\r\n    }\r\n\r\n    public urlBase64Decode(str: string): string {\r\n        let output = str.replace(/-/g, '+').replace(/_/g, '/');\r\n        switch (output.length % 4) {\r\n            case 0: {\r\n                break;\r\n            }\r\n            case 2: {\r\n                output += '==';\r\n                break;\r\n            }\r\n            case 3: {\r\n                output += '=';\r\n                break;\r\n            }\r\n            default: {\r\n                throw new Error('Illegal base64url string!');\r\n            }\r\n        }\r\n        return this.b64DecodeUnicode(output);\r\n    }\r\n\r\n    // credits for decoder goes to https://github.com/atk\r\n    private b64decode(str: string): string {\r\n        const chars =\r\n        'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';\r\n        let output = '';\r\n\r\n        str = String(str).replace(/=+$/, '');\r\n\r\n        if (str.length % 4 === 1) {\r\n            throw new Error(\r\n                '\\'atob\\' failed: The string to be decoded is not correctly encoded.'\r\n            );\r\n        }\r\n\r\n        for (\r\n        // initialize result and counters\r\n        let bc = 0, bs: any, buffer: any, idx = 0;\r\n        // get next character\r\n        (buffer = str.charAt(idx++));\r\n        // character found in table? initialize bit storage and add its ascii value;\r\n        ~buffer &&\r\n        ((bs = bc % 4 ? bs * 64 + buffer : buffer),\r\n        // and if not first of each 4 characters,\r\n        // convert the first 8 bits to one ascii character\r\n        bc++ % 4)\r\n            ? (output += String.fromCharCode(255 & (bs >> ((-2 * bc) & 6))))\r\n            : 0\r\n        ) {\r\n            // try to find character in table (0-63, not found => -1)\r\n            buffer = chars.indexOf(buffer);\r\n        }\r\n        return output;\r\n    }\r\n\r\n    private b64DecodeUnicode(str: any): string {\r\n        return decodeURIComponent(\r\n        Array.prototype.map\r\n            .call(this.b64decode(str), (c: any) => {\r\n                return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2);\r\n            })\r\n            .join('')\r\n        );\r\n    }\r\n\r\n    public decodeToken(token: string): any {\r\n        if (!token || token === '') {\r\n            return null;\r\n        }\r\n\r\n        const parts = token.split('.');\r\n\r\n        if (parts.length !== 3) {\r\n            throw new Error(\r\n                'The inspected token doesn\\'t appear to be a JWT. Check to make sure it has three parts and see https://jwt.io for more.'\r\n            );\r\n        }\r\n\r\n        const decoded = this.urlBase64Decode(parts[1]);\r\n        if (!decoded) {\r\n            throw new Error('Cannot decode the token.');\r\n        }\r\n\r\n        return JSON.parse(decoded);\r\n    }\r\n\r\n    public getTokenExpirationDate(token: string): Date | null {\r\n        let decoded: any;\r\n        decoded = this.decodeToken(token);\r\n\r\n        if (!decoded || !decoded.hasOwnProperty('exp')) {\r\n            return null;\r\n        }\r\n\r\n        const date = new Date(0);\r\n        date.setUTCSeconds(decoded.exp);\r\n\r\n        return date;\r\n    }\r\n\r\n    public isTokenExpired(token: string, offsetSeconds?: number): boolean {\r\n        if (!token || token === '') {\r\n            return true;\r\n        }\r\n        const date = this.getTokenExpirationDate(token);\r\n        offsetSeconds = offsetSeconds || 0;\r\n\r\n        if (date === null) {\r\n            return false;\r\n        }\r\n\r\n        return !(date.valueOf() > new Date().valueOf() + offsetSeconds * 1000);\r\n    }\r\n\r\n    public getAuthScheme(authScheme: Function | string | undefined, request: HttpRequest<any>): string {\r\n        if (typeof authScheme === 'function') {\r\n            return authScheme(request);\r\n        }\r\n\r\n        return authScheme;\r\n    }\r\n}"]}