axis-core/src/auth/digest.js

A Node.js library written in TypeScript containing shared behavior for the other packages, e.g. code handling communication and authentication with Axis Communication cameras.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createCnonce = exports.createHeader = exports.DIGEST = void 0;
const crypto_1 = require("crypto");
const url_1 = require("url");
const uuid_1 = require("uuid");
exports.DIGEST = 'Digest';
const createHeader = (method, url, username, password, challenge, cnonce) => {
    if (challenge.algorithm !== undefined && challenge.algorithm !== 'MD5') {
        throw new Error(`Unsupported digest algorithm: ${challenge.algorithm}`);
    }
    if (challenge.qop !== undefined && challenge.qop !== 'auth') {
        throw new Error(`Unsupported digest qop: ${challenge.qop}`);
    }
    if (challenge.qop === 'auth' && cnonce === undefined) {
        throw new Error('Digest argument error: cnonce must be specified when qop="auth"');
    }
    const path = (0, url_1.parse)(url).path;
    const ha1 = md5(`${username}:${challenge.realm}:${password}`);
    const ha2 = md5(`${method}:${path}`);
    const response = challenge.qop === 'auth' ? md5(`${ha1}:${challenge.nonce}:00000001:${cnonce}:auth:${ha2}`) : md5(`${ha1}:${challenge.nonce}:${ha2}`);
    const params = [`username="${username}"`, `realm="${challenge.realm}"`, `nonce="${challenge.nonce}"`, `uri="${path}"`];
    if (cnonce !== undefined) {
        params.push(`cnonce="${cnonce}"`);
        params.push('nc=00000001');
    }
    if (challenge.qop !== undefined) {
        params.push(`qop=${challenge.qop}`);
    }
    params.push(`response="${response}"`);
    if (challenge.algorithm !== undefined) {
        params.push(`algorithm=${challenge.algorithm}`);
    }
    return `${challenge.type} ${params.join(', ')}`;
};
exports.createHeader = createHeader;
const createCnonce = () => {
    return (0, uuid_1.v4)().replace(/-/g, '');
};
exports.createCnonce = createCnonce;
const md5 = (value) => {
    const hash = (0, crypto_1.createHash)('md5');
    return hash.update(value).digest('hex');
};
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