@elsikora/nestjs-crud-automator/dist/cjs/utility/authorization/resolve-default-principal.utility.js

A library for automating the creation of CRUD operations in NestJS.

'use strict';

require('../../enum/class/authorization/cache-mode.enum.js');
require('../../enum/class/authorization/decision-type.enum.js');
require('../../enum/class/authorization/effect.enum.js');
require('../../enum/class/authorization/mode.enum.js');
require('../../enum/class/authorization/permission-match.enum.js');
require('../../enum/class/authorization/policy/attachment-type.enum.js');
require('../../enum/class/authorization/policy/on-type.enum.js');
require('../../enum/class/authorization/policy/source-type.enum.js');
require('../../enum/class/authorization/policy/status.enum.js');
var principalType_enum = require('../../enum/class/authorization/principal-type.enum.js');

/**
 * Resolves a principal from request.user with smart fallbacks.
 * @param {unknown} user - Request user payload.
 * @returns {IApiAuthorizationPrincipal} Normalized authorization principal.
 */
function AuthorizationResolveDefaultPrincipal(user) {
    const basePrincipal = {
        attributes: {},
        groups: [],
        id: "anonymous",
        roles: [],
        type: principalType_enum.EApiAuthorizationPrincipalType.USER,
    };
    if (!user || typeof user !== "object") {
        return basePrincipal;
    }
    const record = user;
    const idFields = ["id", "uuid", "email"];
    for (const field of idFields) {
        const value = record[field];
        if (typeof value === "string" && value.length > 0) {
            basePrincipal.id = value;
            break;
        }
    }
    basePrincipal.roles = resolveStringArray(record, ["roles", "role"]);
    basePrincipal.groups = resolveStringArray(record, ["groups", "group"]);
    basePrincipal.claims = resolveRecord(record.claims);
    basePrincipal.attributes = record;
    return basePrincipal;
}
/**
 * Returns a plain object record when the value is a non-array object.
 * @param {unknown} value - Candidate claims object.
 * @returns {Record<string, unknown> | undefined} Normalized record value.
 */
function resolveRecord(value) {
    if (!value || typeof value !== "object" || Array.isArray(value)) {
        return undefined;
    }
    return value;
}
/**
 * Resolves a string array from either a scalar or array field.
 * @param {Record<string, unknown>} record - Source record containing potential string values.
 * @param {Array<string>} fields - Candidate field names checked in order.
 * @returns {Array<string>} Normalized string array.
 */
function resolveStringArray(record, fields) {
    for (const field of fields) {
        const value = record[field];
        if (typeof value === "string") {
            return [value];
        }
        if (Array.isArray(value)) {
            return value.filter((item) => typeof item === "string");
        }
    }
    return [];
}

exports.AuthorizationResolveDefaultPrincipal = AuthorizationResolveDefaultPrincipal;
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