'use strict';
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const Bourne = require('@hapi/bourne');
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const Hoek = require('@hapi/hoek');
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const Topo = require('@hapi/topo');
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const Any = require('../any');
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const Errors = require('../../errors');
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const Cast = require('../../cast');
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const State = require('../state');
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const internals = {};
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internals.Object = class extends Any {
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constructor() {
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super();
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this._type = 'object';
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this._inner.children = null;
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this._inner.renames = [];
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this._inner.dependencies = [];
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this._inner.patterns = [];
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}
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_init(...args) {
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return args.length ? this.keys(...args) : this;
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}
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_base(value, state, options) {
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let target = value;
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const errors = [];
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const finish = () => {
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return {
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value: target,
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errors: errors.length ? errors : null
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};
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};
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if (typeof value === 'string' &&
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options.convert) {
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if (value.length > 1 &&
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(value[0] === '{' || /^\s*\{/.test(value))) {
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try {
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value = Bourne.parse(value);
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}
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catch (e) { }
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}
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}
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const type = this._flags.func ? 'function' : 'object';
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if (!value ||
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typeof value !== type ||
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Array.isArray(value)) {
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errors.push(this.createError(type + '.base', { value }, state, options));
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return finish();
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}
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// Skip if there are no other rules to test
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if (!this._inner.renames.length &&
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!this._inner.dependencies.length &&
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!this._inner.children && // null allows any keys
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!this._inner.patterns.length) {
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target = value;
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return finish();
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}
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// Ensure target is a local copy (parsed) or shallow copy
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if (target === value) {
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if (type === 'object') {
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target = Object.create(Object.getPrototypeOf(value));
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}
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else {
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target = function (...args) {
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return value.apply(this, args);
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};
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target.prototype = Hoek.clone(value.prototype);
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}
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const valueKeys = Object.keys(value);
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for (let i = 0; i < valueKeys.length; ++i) {
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target[valueKeys[i]] = value[valueKeys[i]];
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}
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}
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else {
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target = value;
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}
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// Rename keys
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const renamed = {};
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for (let i = 0; i < this._inner.renames.length; ++i) {
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const rename = this._inner.renames[i];
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if (rename.isRegExp) {
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const targetKeys = Object.keys(target);
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const matchedTargetKeys = [];
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for (let j = 0; j < targetKeys.length; ++j) {
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if (rename.from.test(targetKeys[j])) {
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matchedTargetKeys.push(targetKeys[j]);
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}
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}
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const allUndefined = matchedTargetKeys.every((key) => target[key] === undefined);
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if (rename.options.ignoreUndefined && allUndefined) {
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continue;
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}
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if (!rename.options.multiple &&
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renamed[rename.to]) {
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errors.push(this.createError('object.rename.regex.multiple', { from: matchedTargetKeys, to: rename.to }, state, options));
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if (options.abortEarly) {
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return finish();
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}
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}
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if (Object.prototype.hasOwnProperty.call(target, rename.to) &&
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!rename.options.override &&
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!renamed[rename.to]) {
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errors.push(this.createError('object.rename.regex.override', { from: matchedTargetKeys, to: rename.to }, state, options));
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if (options.abortEarly) {
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return finish();
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}
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}
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if (allUndefined) {
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delete target[rename.to];
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}
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else {
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target[rename.to] = target[matchedTargetKeys[matchedTargetKeys.length - 1]];
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}
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renamed[rename.to] = true;
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if (!rename.options.alias) {
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for (let j = 0; j < matchedTargetKeys.length; ++j) {
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delete target[matchedTargetKeys[j]];
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}
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}
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}
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else {
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if (rename.options.ignoreUndefined && target[rename.from] === undefined) {
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continue;
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}
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if (!rename.options.multiple &&
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renamed[rename.to]) {
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errors.push(this.createError('object.rename.multiple', { from: rename.from, to: rename.to }, state, options));
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if (options.abortEarly) {
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return finish();
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}
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}
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if (Object.prototype.hasOwnProperty.call(target, rename.to) &&
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!rename.options.override &&
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!renamed[rename.to]) {
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errors.push(this.createError('object.rename.override', { from: rename.from, to: rename.to }, state, options));
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if (options.abortEarly) {
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return finish();
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}
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}
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if (target[rename.from] === undefined) {
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delete target[rename.to];
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}
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else {
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target[rename.to] = target[rename.from];
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}
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renamed[rename.to] = true;
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if (!rename.options.alias) {
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delete target[rename.from];
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}
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}
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}
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// Validate schema
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if (!this._inner.children && // null allows any keys
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!this._inner.patterns.length &&
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!this._inner.dependencies.length) {
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return finish();
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}
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const unprocessed = new Set(Object.keys(target));
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if (this._inner.children) {
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const stripProps = [];
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for (let i = 0; i < this._inner.children.length; ++i) {
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const child = this._inner.children[i];
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const key = child.key;
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const item = target[key];
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unprocessed.delete(key);
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const localState = new State(key, [...state.path, key], target, state.reference);
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const result = child.schema._validate(item, localState, options);
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if (result.errors) {
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errors.push(this.createError('object.child', { key, child: child.schema._getLabel(key), reason: result.errors }, localState, options));
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if (options.abortEarly) {
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return finish();
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}
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}
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else {
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if (child.schema._flags.strip || (result.value === undefined && result.value !== item)) {
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stripProps.push(key);
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target[key] = result.finalValue;
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}
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else if (result.value !== undefined) {
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target[key] = result.value;
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}
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}
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}
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for (let i = 0; i < stripProps.length; ++i) {
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delete target[stripProps[i]];
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}
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}
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// Unknown keys
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if (unprocessed.size && this._inner.patterns.length) {
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for (const key of unprocessed) {
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const localState = new State(key, [...state.path, key], target, state.reference);
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const item = target[key];
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for (let i = 0; i < this._inner.patterns.length; ++i) {
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const pattern = this._inner.patterns[i];
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if (pattern.regex ?
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pattern.regex.test(key) :
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!pattern.schema._validate(key, state, { ...options, abortEarly:true }).errors) {
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unprocessed.delete(key);
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const result = pattern.rule._validate(item, localState, options);
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if (result.errors) {
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errors.push(this.createError('object.child', {
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key,
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child: pattern.rule._getLabel(key),
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reason: result.errors
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}, localState, options));
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if (options.abortEarly) {
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return finish();
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}
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}
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target[key] = result.value;
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}
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}
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}
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}
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if (unprocessed.size && (this._inner.children || this._inner.patterns.length)) {
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if ((options.stripUnknown && this._flags.allowUnknown !== true) ||
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options.skipFunctions) {
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const stripUnknown = options.stripUnknown
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? (options.stripUnknown === true ? true : !!options.stripUnknown.objects)
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: false;
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for (const key of unprocessed) {
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if (stripUnknown) {
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delete target[key];
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unprocessed.delete(key);
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}
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else if (typeof target[key] === 'function') {
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unprocessed.delete(key);
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}
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}
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}
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if ((this._flags.allowUnknown !== undefined ? !this._flags.allowUnknown : !options.allowUnknown)) {
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for (const unprocessedKey of unprocessed) {
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errors.push(this.createError('object.allowUnknown', { child: unprocessedKey, value: target[unprocessedKey] }, {
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key: unprocessedKey,
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path: [...state.path, unprocessedKey]
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}, options, {}));
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}
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}
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}
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// Validate dependencies
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for (let i = 0; i < this._inner.dependencies.length; ++i) {
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const dep = this._inner.dependencies[i];
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const hasKey = dep.key !== null;
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const splitKey = hasKey && dep.key.split('.');
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const localState = hasKey ? new State(splitKey[splitKey.length - 1], [...state.path, ...splitKey]) : new State(null, state.path);
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const err = internals[dep.type].call(this, dep.key, hasKey && Hoek.reach(target, dep.key, { functions: true }), dep.peers, target, localState, options);
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if (err instanceof Errors.Err) {
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errors.push(err);
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if (options.abortEarly) {
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return finish();
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}
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}
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}
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return finish();
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}
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keys(schema) {
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Hoek.assert(schema === null || schema === undefined || typeof schema === 'object', 'Object schema must be a valid object');
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Hoek.assert(!schema || !(schema instanceof Any), 'Object schema cannot be a joi schema');
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const obj = this.clone();
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if (!schema) {
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obj._inner.children = null;
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return obj;
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}
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const children = Object.keys(schema);
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if (!children.length) {
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obj._inner.children = [];
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return obj;
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}
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const topo = new Topo();
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if (obj._inner.children) {
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for (let i = 0; i < obj._inner.children.length; ++i) {
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const child = obj._inner.children[i];
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// Only add the key if we are not going to replace it later
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if (!children.includes(child.key)) {
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topo.add(child, { after: child._refs, group: child.key });
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}
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}
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}
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for (let i = 0; i < children.length; ++i) {
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const key = children[i];
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const child = schema[key];
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try {
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const cast = Cast.schema(this._currentJoi, child);
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topo.add({ key, schema: cast }, { after: cast._refs, group: key });
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}
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catch (castErr) {
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if (castErr.hasOwnProperty('path')) {
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castErr.path = key + '.' + castErr.path;
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}
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else {
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castErr.path = key;
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}
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throw castErr;
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}
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}
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obj._inner.children = topo.nodes;
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return obj;
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}
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append(schema) {
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// Skip any changes
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if (schema === null || schema === undefined || Object.keys(schema).length === 0) {
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return this;
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}
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return this.keys(schema);
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}
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unknown(allow) {
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const value = allow !== false;
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if (this._flags.allowUnknown === value) {
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return this;
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}
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const obj = this.clone();
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obj._flags.allowUnknown = value;
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return obj;
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}
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length(limit) {
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Hoek.assert(Number.isSafeInteger(limit) && limit >= 0, 'limit must be a positive integer');
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return this._test('length', limit, function (value, state, options) {
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if (Object.keys(value).length === limit) {
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return value;
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}
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return this.createError('object.length', { limit, value }, state, options);
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});
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}
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min(limit) {
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Hoek.assert(Number.isSafeInteger(limit) && limit >= 0, 'limit must be a positive integer');
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return this._test('min', limit, function (value, state, options) {
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if (Object.keys(value).length >= limit) {
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return value;
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}
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return this.createError('object.min', { limit, value }, state, options);
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});
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}
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max(limit) {
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Hoek.assert(Number.isSafeInteger(limit) && limit >= 0, 'limit must be a positive integer');
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return this._test('max', limit, function (value, state, options) {
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if (Object.keys(value).length <= limit) {
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return value;
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}
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return this.createError('object.max', { limit, value }, state, options);
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});
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}
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pattern(pattern, schema) {
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const isRegExp = pattern instanceof RegExp;
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Hoek.assert(isRegExp || pattern instanceof Any, 'pattern must be a regex or schema');
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Hoek.assert(schema !== undefined, 'Invalid rule');
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if (isRegExp) {
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Hoek.assert(!pattern.flags.includes('g') && !pattern.flags.includes('y'), 'pattern should not use global or sticky mode');
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}
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try {
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schema = Cast.schema(this._currentJoi, schema);
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}
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catch (castErr) {
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if (castErr.hasOwnProperty('path')) {
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castErr.message = `${castErr.message}(${castErr.path})`;
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}
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throw castErr;
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}
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const obj = this.clone();
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if (isRegExp) {
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obj._inner.patterns.push({ regex: pattern, rule: schema });
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}
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else {
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obj._inner.patterns.push({ schema: pattern, rule: schema });
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}
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return obj;
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}
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schema() {
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return this._test('schema', null, function (value, state, options) {
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if (value instanceof Any) {
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return value;
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}
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return this.createError('object.schema', null, state, options);
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});
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}
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with(key, peers) {
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Hoek.assert(arguments.length === 2, 'Invalid number of arguments, expected 2.');
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return this._dependency('with', key, peers);
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}
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without(key, peers) {
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Hoek.assert(arguments.length === 2, 'Invalid number of arguments, expected 2.');
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return this._dependency('without', key, peers);
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}
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xor(...peers) {
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peers = Hoek.flatten(peers);
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return this._dependency('xor', null, peers);
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}
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oxor(...peers) {
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return this._dependency('oxor', null, peers);
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}
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or(...peers) {
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peers = Hoek.flatten(peers);
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return this._dependency('or', null, peers);
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}
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and(...peers) {
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peers = Hoek.flatten(peers);
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return this._dependency('and', null, peers);
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}
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nand(...peers) {
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peers = Hoek.flatten(peers);
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return this._dependency('nand', null, peers);
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}
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requiredKeys(...children) {
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children = Hoek.flatten(children);
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return this.applyFunctionToChildren(children, 'required');
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}
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optionalKeys(...children) {
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children = Hoek.flatten(children);
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return this.applyFunctionToChildren(children, 'optional');
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}
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forbiddenKeys(...children) {
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children = Hoek.flatten(children);
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return this.applyFunctionToChildren(children, 'forbidden');
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}
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rename(from, to, options) {
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Hoek.assert(typeof from === 'string' || from instanceof RegExp, 'Rename missing the from argument');
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Hoek.assert(typeof to === 'string', 'Rename missing the to argument');
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Hoek.assert(to !== from, 'Cannot rename key to same name:', from);
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for (let i = 0; i < this._inner.renames.length; ++i) {
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Hoek.assert(this._inner.renames[i].from !== from, 'Cannot rename the same key multiple times');
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}
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const obj = this.clone();
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obj._inner.renames.push({
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from,
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to,
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options: Hoek.applyToDefaults(internals.renameDefaults, options || {}),
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isRegExp: from instanceof RegExp
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});
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return obj;
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}
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applyFunctionToChildren(children, fn, args = [], root) {
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children = [].concat(children);
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Hoek.assert(children.length > 0, 'expected at least one children');
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const groupedChildren = internals.groupChildren(children);
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let obj;
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if ('' in groupedChildren) {
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obj = this[fn](...args);
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delete groupedChildren[''];
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}
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else {
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obj = this.clone();
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}
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if (obj._inner.children) {
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root = root ? (root + '.') : '';
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for (let i = 0; i < obj._inner.children.length; ++i) {
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const child = obj._inner.children[i];
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const group = groupedChildren[child.key];
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if (group) {
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obj._inner.children[i] = {
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key: child.key,
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_refs: child._refs,
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schema: child.schema.applyFunctionToChildren(group, fn, args, root + child.key)
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};
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delete groupedChildren[child.key];
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}
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}
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}
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const remaining = Object.keys(groupedChildren);
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Hoek.assert(remaining.length === 0, 'unknown key(s)', remaining.join(', '));
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return obj;
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}
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_dependency(type, key, peers) {
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peers = [].concat(peers);
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for (let i = 0; i < peers.length; ++i) {
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Hoek.assert(typeof peers[i] === 'string', type, 'peers must be a string or array of strings');
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}
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const obj = this.clone();
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obj._inner.dependencies.push({ type, key, peers });
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return obj;
|
}
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describe(shallow) {
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const description = super.describe();
|
|
if (description.rules) {
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for (let i = 0; i < description.rules.length; ++i) {
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const rule = description.rules[i];
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// Coverage off for future-proof descriptions, only object().assert() is use right now
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if (/* $lab:coverage:off$ */rule.arg &&
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typeof rule.arg === 'object' &&
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rule.arg.schema &&
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rule.arg.ref /* $lab:coverage:on$ */) {
|
rule.arg = {
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schema: rule.arg.schema.describe(),
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ref: rule.arg.ref.toString()
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};
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}
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}
|
}
|
|
if (this._inner.children &&
|
!shallow) {
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description.children = {};
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for (let i = 0; i < this._inner.children.length; ++i) {
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const child = this._inner.children[i];
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description.children[child.key] = child.schema.describe();
|
}
|
}
|
|
if (this._inner.dependencies.length) {
|
description.dependencies = Hoek.clone(this._inner.dependencies);
|
}
|
|
if (this._inner.patterns.length) {
|
description.patterns = [];
|
|
for (let i = 0; i < this._inner.patterns.length; ++i) {
|
const pattern = this._inner.patterns[i];
|
if (pattern.regex) {
|
description.patterns.push({ regex: pattern.regex.toString(), rule: pattern.rule.describe() });
|
}
|
else {
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description.patterns.push({ schema: pattern.schema.describe(), rule: pattern.rule.describe() });
|
}
|
}
|
}
|
|
if (this._inner.renames.length > 0) {
|
description.renames = Hoek.clone(this._inner.renames);
|
}
|
|
return description;
|
}
|
|
assert(ref, schema, message) {
|
|
ref = Cast.ref(ref);
|
Hoek.assert(ref.isContext || ref.depth > 1, 'Cannot use assertions for root level references - use direct key rules instead');
|
message = message || 'pass the assertion test';
|
Hoek.assert(typeof message === 'string', 'Message must be a string');
|
|
try {
|
schema = Cast.schema(this._currentJoi, schema);
|
}
|
catch (castErr) {
|
if (castErr.hasOwnProperty('path')) {
|
castErr.message = `${castErr.message}(${castErr.path})`;
|
}
|
|
throw castErr;
|
}
|
|
const key = ref.path[ref.path.length - 1];
|
const path = ref.path.join('.');
|
|
return this._test('assert', { schema, ref }, function (value, state, options) {
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|
const result = schema._validate(ref(value), null, options, value);
|
if (!result.errors) {
|
return value;
|
}
|
|
const localState = new State(key, ref.path, state.parent, state.reference);
|
return this.createError('object.assert', { ref: path, message }, localState, options);
|
});
|
}
|
|
type(constructor, name = constructor.name) {
|
|
Hoek.assert(typeof constructor === 'function', 'type must be a constructor function');
|
const typeData = {
|
name,
|
ctor: constructor
|
};
|
|
return this._test('type', typeData, function (value, state, options) {
|
|
if (value instanceof constructor) {
|
return value;
|
}
|
|
return this.createError('object.type', { type: typeData.name, value }, state, options);
|
});
|
}
|
};
|
|
|
internals.renameDefaults = {
|
alias: false, // Keep old value in place
|
multiple: false, // Allow renaming multiple keys into the same target
|
override: false // Overrides an existing key
|
};
|
|
|
internals.groupChildren = function (children) {
|
|
children.sort();
|
|
const grouped = {};
|
|
for (let i = 0; i < children.length; ++i) {
|
const child = children[i];
|
Hoek.assert(typeof child === 'string', 'children must be strings');
|
const group = child.split('.')[0];
|
const childGroup = grouped[group] = (grouped[group] || []);
|
childGroup.push(child.substring(group.length + 1));
|
}
|
|
return grouped;
|
};
|
|
|
internals.keysToLabels = function (schema, keys) {
|
|
const children = schema._inner.children;
|
|
if (!children) {
|
return keys;
|
}
|
|
const findLabel = function (key) {
|
|
const matchingChild = schema._currentJoi.reach(schema, key);
|
return matchingChild ? matchingChild._getLabel(key) : key;
|
};
|
|
if (Array.isArray(keys)) {
|
return keys.map(findLabel);
|
}
|
|
return findLabel(keys);
|
};
|
|
|
internals.with = function (key, value, peers, parent, state, options) {
|
|
if (value === undefined) {
|
return;
|
}
|
|
for (let i = 0; i < peers.length; ++i) {
|
|
const peer = peers[i];
|
const keysExist = Hoek.reach(parent, peer, { functions: true });
|
if (keysExist === undefined) {
|
|
return this.createError('object.with', {
|
main: key,
|
mainWithLabel: internals.keysToLabels(this, key),
|
peer,
|
peerWithLabel: internals.keysToLabels(this, peer)
|
}, state, options);
|
}
|
}
|
};
|
|
|
internals.without = function (key, value, peers, parent, state, options) {
|
|
if (value === undefined) {
|
return;
|
}
|
|
for (let i = 0; i < peers.length; ++i) {
|
const peer = peers[i];
|
const keysExist = Hoek.reach(parent, peer, { functions: true });
|
if (keysExist !== undefined) {
|
|
return this.createError('object.without', {
|
main: key,
|
mainWithLabel: internals.keysToLabels(this, key),
|
peer,
|
peerWithLabel: internals.keysToLabels(this, peer)
|
}, state, options);
|
}
|
}
|
};
|
|
|
internals.xor = function (key, value, peers, parent, state, options) {
|
|
const present = [];
|
for (let i = 0; i < peers.length; ++i) {
|
const peer = peers[i];
|
const keysExist = Hoek.reach(parent, peer, { functions: true });
|
if (keysExist !== undefined) {
|
present.push(peer);
|
}
|
}
|
|
if (present.length === 1) {
|
return;
|
}
|
|
const context = { peers, peersWithLabels: internals.keysToLabels(this, peers) };
|
|
if (present.length === 0) {
|
return this.createError('object.missing', context, state, options);
|
}
|
|
context.present = present;
|
context.presentWithLabels = internals.keysToLabels(this, present);
|
|
return this.createError('object.xor', context, state, options);
|
};
|
|
|
internals.oxor = function (key, value, peers, parent, state, options) {
|
|
const present = [];
|
for (let i = 0; i < peers.length; ++i) {
|
const peer = peers[i];
|
const keysExist = Hoek.reach(parent, peer, { functions: true });
|
if (keysExist !== undefined) {
|
present.push(peer);
|
}
|
}
|
|
if (!present.length ||
|
present.length === 1) {
|
|
return;
|
}
|
|
const context = { peers, peersWithLabels: internals.keysToLabels(this, peers) };
|
context.present = present;
|
context.presentWithLabels = internals.keysToLabels(this, present);
|
|
return this.createError('object.oxor', context, state, options);
|
};
|
|
|
internals.or = function (key, value, peers, parent, state, options) {
|
|
for (let i = 0; i < peers.length; ++i) {
|
const peer = peers[i];
|
const keysExist = Hoek.reach(parent, peer, { functions: true });
|
if (keysExist !== undefined) {
|
return;
|
}
|
}
|
|
return this.createError('object.missing', {
|
peers,
|
peersWithLabels: internals.keysToLabels(this, peers)
|
}, state, options);
|
};
|
|
|
internals.and = function (key, value, peers, parent, state, options) {
|
|
const missing = [];
|
const present = [];
|
const count = peers.length;
|
for (let i = 0; i < count; ++i) {
|
const peer = peers[i];
|
const keysExist = Hoek.reach(parent, peer, { functions: true });
|
if (keysExist === undefined) {
|
|
missing.push(peer);
|
}
|
else {
|
present.push(peer);
|
}
|
}
|
|
const aon = (missing.length === count || present.length === count);
|
|
if (!aon) {
|
|
return this.createError('object.and', {
|
present,
|
presentWithLabels: internals.keysToLabels(this, present),
|
missing,
|
missingWithLabels: internals.keysToLabels(this, missing)
|
}, state, options);
|
}
|
};
|
|
|
internals.nand = function (key, value, peers, parent, state, options) {
|
|
const present = [];
|
for (let i = 0; i < peers.length; ++i) {
|
const peer = peers[i];
|
const keysExist = Hoek.reach(parent, peer, { functions: true });
|
if (keysExist !== undefined) {
|
|
present.push(peer);
|
}
|
}
|
|
const main = peers[0];
|
const values = peers.slice(1);
|
const allPresent = (present.length === peers.length);
|
return allPresent ? this.createError('object.nand', {
|
main,
|
mainWithLabel: internals.keysToLabels(this, main),
|
peers: values,
|
peersWithLabels: internals.keysToLabels(this, values)
|
}, state, options) : null;
|
};
|
|
|
module.exports = new internals.Object();
|
