@adonis-agora/filter/dist/src/normalizer.js

Server-side query filtering/sorting/pagination for AdonisJS — Spatie-style input, a Lucid adapter, and field allow-listing. Part of the Agora ecosystem.

const BLOCKED_KEYS = new Set(['__proto__', 'constructor', 'prototype', 'toString', 'valueOf']);
/**
 * Normalize a decoded input object's top-level keys — case-transforming them via
 * the chosen {@link InputNormalizer}, optionally stripping `Id` suffixes and
 * empty values — into a null-prototype object.
 *
 * Prototype-pollution keys (`__proto__`, `constructor`, `prototype`, `toString`,
 * `valueOf`) are dropped both before and after normalization, and the result has
 * a null prototype, so a hostile key can never reach `Object.prototype`. Nested
 * values are left untouched — only top-level keys are normalized.
 */
export function normalizeInput(input, options) {
    if (input == null || typeof input !== 'object')
        return {};
    const norm = pickNormalizer(options.normalizer);
    const drop = options.dropId === true;
    const strip = options.stripEmpty !== false;
    const out = Object.create(null);
    for (const [rawKey, value] of Object.entries(input)) {
        if (BLOCKED_KEYS.has(rawKey))
            continue;
        if (strip && (value === null || value === undefined || value === ''))
            continue;
        let key = norm(rawKey);
        if (BLOCKED_KEYS.has(key))
            continue;
        if (drop)
            key = stripId(key);
        if (key.length === 0)
            continue;
        out[key] = value;
    }
    return out;
}
function pickNormalizer(spec) {
    if (typeof spec === 'function')
        return spec;
    if (spec === 'camelCase')
        return toCamelCase;
    return toSnakeCase;
}
function toCamelCase(key) {
    const result = key.replace(/[_-](\w)/g, (_, c) => c.toUpperCase());
    return result.charAt(0).toLowerCase() + result.slice(1);
}
function toSnakeCase(key) {
    return key
        .replace(/([A-Z]+)([A-Z][a-z])/g, '$1_$2')
        .replace(/([a-z0-9])([A-Z])/g, '$1_$2')
        .toLowerCase();
}
function stripId(key) {
    if (key.endsWith('Id'))
        return key.slice(0, -2);
    if (key.endsWith('_id'))
        return key.slice(0, -3);
    if (key === 'id')
        return '';
    return key;
}
//# sourceMappingURL=normalizer.js.map