839 lines
25 KiB
JavaScript
839 lines
25 KiB
JavaScript
'use strict';
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var helpers = require('./helpers');
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/** @type ValidatorResult */
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var ValidatorResult = helpers.ValidatorResult;
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/** @type SchemaError */
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var SchemaError = helpers.SchemaError;
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var attribute = {};
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attribute.ignoreProperties = {
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// informative properties
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'id': true,
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'default': true,
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'description': true,
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'title': true,
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// arguments to other properties
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'exclusiveMinimum': true,
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'exclusiveMaximum': true,
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'additionalItems': true,
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// special-handled properties
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'$schema': true,
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'$ref': true,
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'extends': true
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};
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/**
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* @name validators
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*/
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var validators = attribute.validators = {};
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/**
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* Validates whether the instance if of a certain type
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* @param instance
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* @param schema
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* @param options
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* @param ctx
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* @return {ValidatorResult|null}
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*/
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validators.type = function validateType (instance, schema, options, ctx) {
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// Ignore undefined instances
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if (instance === undefined) {
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return null;
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}
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var result = new ValidatorResult(instance, schema, options, ctx);
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var types = Array.isArray(schema.type) ? schema.type : [schema.type];
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if (!types.some(this.testType.bind(this, instance, schema, options, ctx))) {
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var list = types.map(function (v) {
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return v.id && ('<' + v.id + '>') || (v+'');
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});
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result.addError({
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name: 'type',
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argument: list,
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message: "is not of a type(s) " + list,
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});
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}
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return result;
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};
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function testSchema(instance, options, ctx, callback, schema){
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var res = this.validateSchema(instance, schema, options, ctx);
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if (! res.valid && callback instanceof Function) {
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callback(res);
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}
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return res.valid;
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}
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/**
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* Validates whether the instance matches some of the given schemas
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* @param instance
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* @param schema
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* @param options
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* @param ctx
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* @return {ValidatorResult|null}
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*/
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validators.anyOf = function validateAnyOf (instance, schema, options, ctx) {
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// Ignore undefined instances
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if (instance === undefined) {
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return null;
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}
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var result = new ValidatorResult(instance, schema, options, ctx);
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var inner = new ValidatorResult(instance, schema, options, ctx);
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if (!Array.isArray(schema.anyOf)){
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throw new SchemaError("anyOf must be an array");
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}
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if (!schema.anyOf.some(
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testSchema.bind(
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this, instance, options, ctx, function(res){inner.importErrors(res);}
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))) {
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var list = schema.anyOf.map(function (v, i) {
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return (v.id && ('<' + v.id + '>')) || (v.title && JSON.stringify(v.title)) || (v['$ref'] && ('<' + v['$ref'] + '>')) || '[subschema '+i+']';
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});
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if (options.nestedErrors) {
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result.importErrors(inner);
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}
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result.addError({
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name: 'anyOf',
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argument: list,
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message: "is not any of " + list.join(','),
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});
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}
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return result;
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};
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/**
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* Validates whether the instance matches every given schema
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* @param instance
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* @param schema
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* @param options
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* @param ctx
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* @return {String|null}
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*/
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validators.allOf = function validateAllOf (instance, schema, options, ctx) {
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// Ignore undefined instances
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if (instance === undefined) {
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return null;
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}
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if (!Array.isArray(schema.allOf)){
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throw new SchemaError("allOf must be an array");
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}
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var result = new ValidatorResult(instance, schema, options, ctx);
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var self = this;
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schema.allOf.forEach(function(v, i){
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var valid = self.validateSchema(instance, v, options, ctx);
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if(!valid.valid){
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var msg = (v.id && ('<' + v.id + '>')) || (v.title && JSON.stringify(v.title)) || (v['$ref'] && ('<' + v['$ref'] + '>')) || '[subschema '+i+']';
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result.addError({
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name: 'allOf',
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argument: { id: msg, length: valid.errors.length, valid: valid },
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message: 'does not match allOf schema ' + msg + ' with ' + valid.errors.length + ' error[s]:',
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});
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result.importErrors(valid);
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}
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});
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return result;
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};
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/**
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* Validates whether the instance matches exactly one of the given schemas
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* @param instance
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* @param schema
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* @param options
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* @param ctx
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* @return {String|null}
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*/
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validators.oneOf = function validateOneOf (instance, schema, options, ctx) {
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// Ignore undefined instances
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if (instance === undefined) {
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return null;
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}
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if (!Array.isArray(schema.oneOf)){
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throw new SchemaError("oneOf must be an array");
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}
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var result = new ValidatorResult(instance, schema, options, ctx);
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var inner = new ValidatorResult(instance, schema, options, ctx);
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var count = schema.oneOf.filter(
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testSchema.bind(
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this, instance, options, ctx, function(res) {inner.importErrors(res);}
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) ).length;
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var list = schema.oneOf.map(function (v, i) {
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return (v.id && ('<' + v.id + '>')) || (v.title && JSON.stringify(v.title)) || (v['$ref'] && ('<' + v['$ref'] + '>')) || '[subschema '+i+']';
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});
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if (count!==1) {
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if (options.nestedErrors) {
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result.importErrors(inner);
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}
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result.addError({
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name: 'oneOf',
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argument: list,
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message: "is not exactly one from " + list.join(','),
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});
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}
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return result;
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};
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/**
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* Validates properties
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* @param instance
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* @param schema
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* @param options
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* @param ctx
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* @return {String|null|ValidatorResult}
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*/
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validators.properties = function validateProperties (instance, schema, options, ctx) {
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if(instance === undefined || !(instance instanceof Object)) return;
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var result = new ValidatorResult(instance, schema, options, ctx);
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var properties = schema.properties || {};
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for (var property in properties) {
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if (typeof options.preValidateProperty == 'function') {
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options.preValidateProperty(instance, property, properties[property], options, ctx);
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}
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var prop = (instance || undefined) && instance[property];
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var res = this.validateSchema(prop, properties[property], options, ctx.makeChild(properties[property], property));
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if(res.instance !== result.instance[property]) result.instance[property] = res.instance;
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result.importErrors(res);
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}
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return result;
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};
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/**
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* Test a specific property within in instance against the additionalProperties schema attribute
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* This ignores properties with definitions in the properties schema attribute, but no other attributes.
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* If too many more types of property-existance tests pop up they may need their own class of tests (like `type` has)
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* @private
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* @return {boolean}
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*/
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function testAdditionalProperty (instance, schema, options, ctx, property, result) {
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if (schema.properties && schema.properties[property] !== undefined) {
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return;
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}
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if (schema.additionalProperties === false) {
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result.addError({
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name: 'additionalProperties',
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argument: property,
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message: "additionalProperty " + JSON.stringify(property) + " exists in instance when not allowed",
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});
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} else {
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var additionalProperties = schema.additionalProperties || {};
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if (typeof options.preValidateProperty == 'function') {
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options.preValidateProperty(instance, property, additionalProperties, options, ctx);
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}
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var res = this.validateSchema(instance[property], additionalProperties, options, ctx.makeChild(additionalProperties, property));
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if(res.instance !== result.instance[property]) result.instance[property] = res.instance;
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result.importErrors(res);
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}
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}
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/**
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* Validates patternProperties
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* @param instance
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* @param schema
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* @param options
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* @param ctx
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* @return {String|null|ValidatorResult}
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*/
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validators.patternProperties = function validatePatternProperties (instance, schema, options, ctx) {
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if(instance === undefined) return;
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if(!this.types.object(instance)) return;
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var result = new ValidatorResult(instance, schema, options, ctx);
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var patternProperties = schema.patternProperties || {};
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for (var property in instance) {
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var test = true;
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for (var pattern in patternProperties) {
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var expr = new RegExp(pattern);
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if (!expr.test(property)) {
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continue;
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}
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test = false;
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if (typeof options.preValidateProperty == 'function') {
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options.preValidateProperty(instance, property, patternProperties[pattern], options, ctx);
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}
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var res = this.validateSchema(instance[property], patternProperties[pattern], options, ctx.makeChild(patternProperties[pattern], property));
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if(res.instance !== result.instance[property]) result.instance[property] = res.instance;
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result.importErrors(res);
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}
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if (test) {
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testAdditionalProperty.call(this, instance, schema, options, ctx, property, result);
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}
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}
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return result;
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};
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/**
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* Validates additionalProperties
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* @param instance
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* @param schema
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* @param options
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* @param ctx
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* @return {String|null|ValidatorResult}
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*/
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validators.additionalProperties = function validateAdditionalProperties (instance, schema, options, ctx) {
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if(instance === undefined) return;
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if(!this.types.object(instance)) return;
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// if patternProperties is defined then we'll test when that one is called instead
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if (schema.patternProperties) {
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return null;
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}
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var result = new ValidatorResult(instance, schema, options, ctx);
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for (var property in instance) {
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testAdditionalProperty.call(this, instance, schema, options, ctx, property, result);
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}
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return result;
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};
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/**
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* Validates whether the instance value is at least of a certain length, when the instance value is a string.
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* @param instance
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* @param schema
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* @return {String|null}
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*/
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validators.minProperties = function validateMinProperties (instance, schema, options, ctx) {
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if (!instance || typeof instance !== 'object') {
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return null;
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}
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var result = new ValidatorResult(instance, schema, options, ctx);
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var keys = Object.keys(instance);
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if (!(keys.length >= schema.minProperties)) {
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result.addError({
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name: 'minProperties',
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argument: schema.minProperties,
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message: "does not meet minimum property length of " + schema.minProperties,
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})
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}
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return result;
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};
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/**
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* Validates whether the instance value is at most of a certain length, when the instance value is a string.
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* @param instance
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* @param schema
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* @return {String|null}
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*/
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validators.maxProperties = function validateMaxProperties (instance, schema, options, ctx) {
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if (!instance || typeof instance !== 'object') {
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return null;
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}
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var result = new ValidatorResult(instance, schema, options, ctx);
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var keys = Object.keys(instance);
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if (!(keys.length <= schema.maxProperties)) {
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result.addError({
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name: 'maxProperties',
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argument: schema.maxProperties,
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message: "does not meet maximum property length of " + schema.maxProperties,
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});
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}
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return result;
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};
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/**
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* Validates items when instance is an array
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* @param instance
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* @param schema
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* @param options
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* @param ctx
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* @return {String|null|ValidatorResult}
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*/
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validators.items = function validateItems (instance, schema, options, ctx) {
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if (!Array.isArray(instance)) {
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return null;
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}
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var self = this;
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var result = new ValidatorResult(instance, schema, options, ctx);
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if (instance === undefined || !schema.items) {
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return result;
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}
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instance.every(function (value, i) {
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var items = Array.isArray(schema.items) ? (schema.items[i] || schema.additionalItems) : schema.items;
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if (items === undefined) {
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return true;
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}
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if (items === false) {
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result.addError({
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name: 'items',
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message: "additionalItems not permitted",
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});
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return false;
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}
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var res = self.validateSchema(value, items, options, ctx.makeChild(items, i));
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if(res.instance !== result.instance[i]) result.instance[i] = res.instance;
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result.importErrors(res);
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return true;
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});
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return result;
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};
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/**
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* Validates minimum and exclusiveMinimum when the type of the instance value is a number.
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* @param instance
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* @param schema
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* @return {String|null}
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*/
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validators.minimum = function validateMinimum (instance, schema, options, ctx) {
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if (typeof instance !== 'number') {
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return null;
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}
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var result = new ValidatorResult(instance, schema, options, ctx);
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var valid = true;
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if (schema.exclusiveMinimum && schema.exclusiveMinimum === true) {
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valid = instance > schema.minimum;
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} else {
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valid = instance >= schema.minimum;
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}
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if (!valid) {
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result.addError({
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name: 'minimum',
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argument: schema.minimum,
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message: "must have a minimum value of " + schema.minimum,
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});
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}
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return result;
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};
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/**
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* Validates maximum and exclusiveMaximum when the type of the instance value is a number.
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* @param instance
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* @param schema
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* @return {String|null}
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*/
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validators.maximum = function validateMaximum (instance, schema, options, ctx) {
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if (typeof instance !== 'number') {
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return null;
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}
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var result = new ValidatorResult(instance, schema, options, ctx);
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var valid;
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if (schema.exclusiveMaximum && schema.exclusiveMaximum === true) {
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valid = instance < schema.maximum;
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} else {
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valid = instance <= schema.maximum;
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}
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if (!valid) {
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result.addError({
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name: 'maximum',
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argument: schema.maximum,
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message: "must have a maximum value of " + schema.maximum,
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});
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}
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return result;
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};
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/**
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* Perform validation for multipleOf and divisibleBy, which are essentially the same.
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* @param instance
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* @param schema
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* @param validationType
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* @param errorMessage
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* @returns {String|null}
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*/
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var validateMultipleOfOrDivisbleBy = function validateMultipleOfOrDivisbleBy (instance, schema, options, ctx, validationType, errorMessage) {
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if (typeof instance !== 'number') {
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return null;
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}
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var validationArgument = schema[validationType];
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if (validationArgument == 0) {
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throw new SchemaError(validationType + " cannot be zero");
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}
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var result = new ValidatorResult(instance, schema, options, ctx);
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var instanceDecimals = helpers.getDecimalPlaces(instance);
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var divisorDecimals = helpers.getDecimalPlaces(validationArgument);
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var maxDecimals = Math.max(instanceDecimals , divisorDecimals);
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var multiplier = Math.pow(10, maxDecimals);
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if (Math.round(instance * multiplier) % Math.round(validationArgument * multiplier) !== 0) {
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result.addError({
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name: validationType,
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argument: validationArgument,
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message: errorMessage + JSON.stringify(validationArgument)
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});
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}
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return result;
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};
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/**
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* Validates divisibleBy when the type of the instance value is a number.
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* @param instance
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* @param schema
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* @return {String|null}
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*/
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validators.multipleOf = function validateMultipleOf (instance, schema, options, ctx) {
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return validateMultipleOfOrDivisbleBy(instance, schema, options, ctx, "multipleOf", "is not a multiple of (divisible by) ");
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};
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/**
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* Validates multipleOf when the type of the instance value is a number.
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* @param instance
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* @param schema
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* @return {String|null}
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*/
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validators.divisibleBy = function validateDivisibleBy (instance, schema, options, ctx) {
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return validateMultipleOfOrDivisbleBy(instance, schema, options, ctx, "divisibleBy", "is not divisible by (multiple of) ");
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};
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/**
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* Validates whether the instance value is present.
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* @param instance
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* @param schema
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* @return {String|null}
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*/
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validators.required = function validateRequired (instance, schema, options, ctx) {
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var result = new ValidatorResult(instance, schema, options, ctx);
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if (instance === undefined && schema.required === true) {
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// A boolean form is implemented for reverse-compatability with schemas written against older drafts
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result.addError({
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name: 'required',
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message: "is required"
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});
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} else if (instance && typeof instance==='object' && Array.isArray(schema.required)) {
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schema.required.forEach(function(n){
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if(instance[n]===undefined){
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result.addError({
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name: 'required',
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argument: n,
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message: "requires property " + JSON.stringify(n),
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});
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}
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});
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}
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return result;
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};
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/**
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* Validates whether the instance value matches the regular expression, when the instance value is a string.
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* @param instance
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* @param schema
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* @return {String|null}
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*/
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validators.pattern = function validatePattern (instance, schema, options, ctx) {
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if (typeof instance !== 'string') {
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return null;
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}
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var result = new ValidatorResult(instance, schema, options, ctx);
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if (!instance.match(schema.pattern)) {
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result.addError({
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name: 'pattern',
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argument: schema.pattern,
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message: "does not match pattern " + JSON.stringify(schema.pattern),
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});
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}
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return result;
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};
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/**
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* Validates whether the instance value is of a certain defined format or a custom
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* format.
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* The following formats are supported for string types:
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* - date-time
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* - date
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* - time
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* - ip-address
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* - ipv6
|
|
* - uri
|
|
* - color
|
|
* - host-name
|
|
* - alpha
|
|
* - alpha-numeric
|
|
* - utc-millisec
|
|
* @param instance
|
|
* @param schema
|
|
* @param [options]
|
|
* @param [ctx]
|
|
* @return {String|null}
|
|
*/
|
|
validators.format = function validateFormat (instance, schema, options, ctx) {
|
|
var result = new ValidatorResult(instance, schema, options, ctx);
|
|
if (!result.disableFormat && !helpers.isFormat(instance, schema.format, this)) {
|
|
result.addError({
|
|
name: 'format',
|
|
argument: schema.format,
|
|
message: "does not conform to the " + JSON.stringify(schema.format) + " format",
|
|
});
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Validates whether the instance value is at least of a certain length, when the instance value is a string.
|
|
* @param instance
|
|
* @param schema
|
|
* @return {String|null}
|
|
*/
|
|
validators.minLength = function validateMinLength (instance, schema, options, ctx) {
|
|
if (!(typeof instance === 'string')) {
|
|
return null;
|
|
}
|
|
var result = new ValidatorResult(instance, schema, options, ctx);
|
|
if (!(instance.length >= schema.minLength)) {
|
|
result.addError({
|
|
name: 'minLength',
|
|
argument: schema.minLength,
|
|
message: "does not meet minimum length of " + schema.minLength,
|
|
});
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Validates whether the instance value is at most of a certain length, when the instance value is a string.
|
|
* @param instance
|
|
* @param schema
|
|
* @return {String|null}
|
|
*/
|
|
validators.maxLength = function validateMaxLength (instance, schema, options, ctx) {
|
|
if (!(typeof instance === 'string')) {
|
|
return null;
|
|
}
|
|
var result = new ValidatorResult(instance, schema, options, ctx);
|
|
if (!(instance.length <= schema.maxLength)) {
|
|
result.addError({
|
|
name: 'maxLength',
|
|
argument: schema.maxLength,
|
|
message: "does not meet maximum length of " + schema.maxLength,
|
|
});
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Validates whether instance contains at least a minimum number of items, when the instance is an Array.
|
|
* @param instance
|
|
* @param schema
|
|
* @return {String|null}
|
|
*/
|
|
validators.minItems = function validateMinItems (instance, schema, options, ctx) {
|
|
if (!Array.isArray(instance)) {
|
|
return null;
|
|
}
|
|
var result = new ValidatorResult(instance, schema, options, ctx);
|
|
if (!(instance.length >= schema.minItems)) {
|
|
result.addError({
|
|
name: 'minItems',
|
|
argument: schema.minItems,
|
|
message: "does not meet minimum length of " + schema.minItems,
|
|
});
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Validates whether instance contains no more than a maximum number of items, when the instance is an Array.
|
|
* @param instance
|
|
* @param schema
|
|
* @return {String|null}
|
|
*/
|
|
validators.maxItems = function validateMaxItems (instance, schema, options, ctx) {
|
|
if (!Array.isArray(instance)) {
|
|
return null;
|
|
}
|
|
var result = new ValidatorResult(instance, schema, options, ctx);
|
|
if (!(instance.length <= schema.maxItems)) {
|
|
result.addError({
|
|
name: 'maxItems',
|
|
argument: schema.maxItems,
|
|
message: "does not meet maximum length of " + schema.maxItems,
|
|
});
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Validates that every item in an instance array is unique, when instance is an array
|
|
* @param instance
|
|
* @param schema
|
|
* @param options
|
|
* @param ctx
|
|
* @return {String|null|ValidatorResult}
|
|
*/
|
|
validators.uniqueItems = function validateUniqueItems (instance, schema, options, ctx) {
|
|
var result = new ValidatorResult(instance, schema, options, ctx);
|
|
if (!Array.isArray(instance)) {
|
|
return result;
|
|
}
|
|
function testArrays (v, i, a) {
|
|
for (var j = i + 1; j < a.length; j++) if (helpers.deepCompareStrict(v, a[j])) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
if (!instance.every(testArrays)) {
|
|
result.addError({
|
|
name: 'uniqueItems',
|
|
message: "contains duplicate item",
|
|
});
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Deep compares arrays for duplicates
|
|
* @param v
|
|
* @param i
|
|
* @param a
|
|
* @private
|
|
* @return {boolean}
|
|
*/
|
|
function testArrays (v, i, a) {
|
|
var j, len = a.length;
|
|
for (j = i + 1, len; j < len; j++) {
|
|
if (helpers.deepCompareStrict(v, a[j])) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Validates whether there are no duplicates, when the instance is an Array.
|
|
* @param instance
|
|
* @return {String|null}
|
|
*/
|
|
validators.uniqueItems = function validateUniqueItems (instance, schema, options, ctx) {
|
|
if (!Array.isArray(instance)) {
|
|
return null;
|
|
}
|
|
var result = new ValidatorResult(instance, schema, options, ctx);
|
|
if (!instance.every(testArrays)) {
|
|
result.addError({
|
|
name: 'uniqueItems',
|
|
message: "contains duplicate item",
|
|
});
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Validate for the presence of dependency properties, if the instance is an object.
|
|
* @param instance
|
|
* @param schema
|
|
* @param options
|
|
* @param ctx
|
|
* @return {null|ValidatorResult}
|
|
*/
|
|
validators.dependencies = function validateDependencies (instance, schema, options, ctx) {
|
|
if (!instance || typeof instance != 'object') {
|
|
return null;
|
|
}
|
|
var result = new ValidatorResult(instance, schema, options, ctx);
|
|
for (var property in schema.dependencies) {
|
|
if (instance[property] === undefined) {
|
|
continue;
|
|
}
|
|
var dep = schema.dependencies[property];
|
|
var childContext = ctx.makeChild(dep, property);
|
|
if (typeof dep == 'string') {
|
|
dep = [dep];
|
|
}
|
|
if (Array.isArray(dep)) {
|
|
dep.forEach(function (prop) {
|
|
if (instance[prop] === undefined) {
|
|
result.addError({
|
|
// FIXME there's two different "dependencies" errors here with slightly different outputs
|
|
// Can we make these the same? Or should we create different error types?
|
|
name: 'dependencies',
|
|
argument: childContext.propertyPath,
|
|
message: "property " + prop + " not found, required by " + childContext.propertyPath,
|
|
});
|
|
}
|
|
});
|
|
} else {
|
|
var res = this.validateSchema(instance, dep, options, childContext);
|
|
if(result.instance !== res.instance) result.instance = res.instance;
|
|
if (res && res.errors.length) {
|
|
result.addError({
|
|
name: 'dependencies',
|
|
argument: childContext.propertyPath,
|
|
message: "does not meet dependency required by " + childContext.propertyPath,
|
|
});
|
|
result.importErrors(res);
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Validates whether the instance value is one of the enumerated values.
|
|
*
|
|
* @param instance
|
|
* @param schema
|
|
* @return {ValidatorResult|null}
|
|
*/
|
|
validators['enum'] = function validateEnum (instance, schema, options, ctx) {
|
|
if (!Array.isArray(schema['enum'])) {
|
|
throw new SchemaError("enum expects an array", schema);
|
|
}
|
|
if (instance === undefined) {
|
|
return null;
|
|
}
|
|
var result = new ValidatorResult(instance, schema, options, ctx);
|
|
if (!schema['enum'].some(helpers.deepCompareStrict.bind(null, instance))) {
|
|
result.addError({
|
|
name: 'enum',
|
|
argument: schema['enum'],
|
|
message: "is not one of enum values: " + schema['enum'].join(','),
|
|
});
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Validates whether the instance exactly matches a given value
|
|
*
|
|
* @param instance
|
|
* @param schema
|
|
* @return {ValidatorResult|null}
|
|
*/
|
|
validators['const'] = function validateEnum (instance, schema, options, ctx) {
|
|
var result = new ValidatorResult(instance, schema, options, ctx);
|
|
if (!helpers.deepCompareStrict(schema['const'], instance)) {
|
|
result.addError({
|
|
name: 'const',
|
|
argument: schema['const'],
|
|
message: "does not exactly match expected constant: " + schema['const'],
|
|
});
|
|
}
|
|
return result;
|
|
};
|
|
|
|
/**
|
|
* Validates whether the instance if of a prohibited type.
|
|
* @param instance
|
|
* @param schema
|
|
* @param options
|
|
* @param ctx
|
|
* @return {null|ValidatorResult}
|
|
*/
|
|
validators.not = validators.disallow = function validateNot (instance, schema, options, ctx) {
|
|
var self = this;
|
|
if(instance===undefined) return null;
|
|
var result = new ValidatorResult(instance, schema, options, ctx);
|
|
var notTypes = schema.not || schema.disallow;
|
|
if(!notTypes) return null;
|
|
if(!Array.isArray(notTypes)) notTypes=[notTypes];
|
|
notTypes.forEach(function (type) {
|
|
if (self.testType(instance, schema, options, ctx, type)) {
|
|
var schemaId = type && type.id && ('<' + type.id + '>') || type;
|
|
result.addError({
|
|
name: 'not',
|
|
argument: schemaId,
|
|
message: "is of prohibited type " + schemaId,
|
|
});
|
|
}
|
|
});
|
|
return result;
|
|
};
|
|
|
|
module.exports = attribute;
|