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+/* SPDX-License-Identifier: MIT
+ *
+ * jsonschema is licensed under MIT license.
+ *
+ * Copyright (C) 2012-2015 Tom de Grunt <tom@degrunt.nl>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#IMPORT common/jsonschema/urllib_mock.js AS urilib
+#IMPORT common/jsonschema/attribute.js
+#IMPORT common/jsonschema/helpers.js
+
+#FROM common/jsonschema/scan.js IMPORT scan AS scanSchema
+
+var ValidatorResult = helpers.ValidatorResult;
+var ValidatorResultError = helpers.ValidatorResultError;
+var SchemaError = helpers.SchemaError;
+var SchemaContext = helpers.SchemaContext;
+//var anonymousBase = 'vnd.jsonschema:///';
+var anonymousBase = '/';
+
+/**
+ * Creates a new Validator object
+ * @name Validator
+ * @constructor
+ */
+var Validator = function Validator () {
+ // Allow a validator instance to override global custom formats or to have their
+ // own custom formats.
+ this.customFormats = Object.create(Validator.prototype.customFormats);
+ this.schemas = {};
+ this.unresolvedRefs = [];
+
+ // Use Object.create to make this extensible without Validator instances stepping on each other's toes.
+ this.types = Object.create(types);
+ this.attributes = Object.create(attribute.validators);
+};
+
+// Allow formats to be registered globally.
+Validator.prototype.customFormats = {};
+
+// Hint at the presence of a property
+Validator.prototype.schemas = null;
+Validator.prototype.types = null;
+Validator.prototype.attributes = null;
+Validator.prototype.unresolvedRefs = null;
+
+/**
+ * Adds a schema with a certain urn to the Validator instance.
+ * @param schema
+ * @param urn
+ * @return {Object}
+ */
+Validator.prototype.addSchema = function addSchema (schema, base) {
+ var self = this;
+ if (!schema) {
+ return null;
+ }
+ var scan = scanSchema(base||anonymousBase, schema);
+ var ourUri = base || schema.$id || schema.id;
+ for(var uri in scan.id){
+ this.schemas[uri] = scan.id[uri];
+ }
+ for(var uri in scan.ref){
+ // If this schema is already defined, it will be filtered out by the next step
+ this.unresolvedRefs.push(uri);
+ }
+ // Remove newly defined schemas from unresolvedRefs
+ this.unresolvedRefs = this.unresolvedRefs.filter(function(uri){
+ return typeof self.schemas[uri]==='undefined';
+ });
+ return this.schemas[ourUri];
+};
+
+Validator.prototype.addSubSchemaArray = function addSubSchemaArray(baseuri, schemas) {
+ if(!Array.isArray(schemas)) return;
+ for(var i=0; i<schemas.length; i++){
+ this.addSubSchema(baseuri, schemas[i]);
+ }
+};
+
+Validator.prototype.addSubSchemaObject = function addSubSchemaArray(baseuri, schemas) {
+ if(!schemas || typeof schemas!='object') return;
+ for(var p in schemas){
+ this.addSubSchema(baseuri, schemas[p]);
+ }
+};
+
+
+
+/**
+ * Sets all the schemas of the Validator instance.
+ * @param schemas
+ */
+Validator.prototype.setSchemas = function setSchemas (schemas) {
+ this.schemas = schemas;
+};
+
+/**
+ * Returns the schema of a certain urn
+ * @param urn
+ */
+Validator.prototype.getSchema = function getSchema (urn) {
+ return this.schemas[urn];
+};
+
+/**
+ * Validates instance against the provided schema
+ * @param instance
+ * @param schema
+ * @param [options]
+ * @param [ctx]
+ * @return {Array}
+ */
+Validator.prototype.validate = function validate (instance, schema, options, ctx) {
+ if((typeof schema !== 'boolean' && typeof schema !== 'object') || schema === null){
+ throw new SchemaError('Expected `schema` to be an object or boolean');
+ }
+ if (!options) {
+ options = {};
+ }
+ // This section indexes subschemas in the provided schema, so they don't need to be added with Validator#addSchema
+ // This will work so long as the function at uri.resolve() will resolve a relative URI to a relative URI
+ var id = schema.$id || schema.id;
+ var base = urilib.resolve(options.base||anonymousBase, id||'');
+ if(!ctx){
+ ctx = new SchemaContext(schema, options, [], base, Object.create(this.schemas));
+ if (!ctx.schemas[base]) {
+ ctx.schemas[base] = schema;
+ }
+ var found = scanSchema(base, schema);
+ for(var n in found.id){
+ var sch = found.id[n];
+ ctx.schemas[n] = sch;
+ }
+ }
+ if(options.required && instance===undefined){
+ var result = new ValidatorResult(instance, schema, options, ctx);
+ result.addError('is required, but is undefined');
+ return result;
+ }
+ var result = this.validateSchema(instance, schema, options, ctx);
+ if (!result) {
+ throw new Error('Result undefined');
+ }else if(options.throwAll && result.errors.length){
+ throw new ValidatorResultError(result);
+ }
+ return result;
+};
+
+/**
+* @param Object schema
+* @return mixed schema uri or false
+*/
+function shouldResolve(schema) {
+ var ref = (typeof schema === 'string') ? schema : schema.$ref;
+ if (typeof ref=='string') return ref;
+ return false;
+}
+
+/**
+ * Validates an instance against the schema (the actual work horse)
+ * @param instance
+ * @param schema
+ * @param options
+ * @param ctx
+ * @private
+ * @return {ValidatorResult}
+ */
+Validator.prototype.validateSchema = function validateSchema (instance, schema, options, ctx) {
+ var result = new ValidatorResult(instance, schema, options, ctx);
+
+ // Support for the true/false schemas
+ if(typeof schema==='boolean') {
+ if(schema===true){
+ // `true` is always valid
+ schema = {};
+ }else if(schema===false){
+ // `false` is always invalid
+ schema = {type: []};
+ }
+ }else if(!schema){
+ // This might be a string
+ throw new Error("schema is undefined");
+ }
+
+ if (schema['extends']) {
+ if (Array.isArray(schema['extends'])) {
+ var schemaobj = {schema: schema, ctx: ctx};
+ schema['extends'].forEach(this.schemaTraverser.bind(this, schemaobj));
+ schema = schemaobj.schema;
+ schemaobj.schema = null;
+ schemaobj.ctx = null;
+ schemaobj = null;
+ } else {
+ schema = helpers.deepMerge(schema, this.superResolve(schema['extends'], ctx));
+ }
+ }
+
+ // If passed a string argument, load that schema URI
+ var switchSchema = shouldResolve(schema);
+ if (switchSchema) {
+ var resolved = this.resolve(schema, switchSchema, ctx);
+ var subctx = new SchemaContext(resolved.subschema, options, ctx.path, resolved.switchSchema, ctx.schemas);
+ return this.validateSchema(instance, resolved.subschema, options, subctx);
+ }
+
+ var skipAttributes = options && options.skipAttributes || [];
+ // Validate each schema attribute against the instance
+ for (var key in schema) {
+ if (!attribute.ignoreProperties[key] && skipAttributes.indexOf(key) < 0) {
+ var validatorErr = null;
+ var validator = this.attributes[key];
+ if (validator) {
+ validatorErr = validator.call(this, instance, schema, options, ctx);
+ } else if (options.allowUnknownAttributes === false) {
+ // This represents an error with the schema itself, not an invalid instance
+ throw new SchemaError("Unsupported attribute: " + key, schema);
+ }
+ if (validatorErr) {
+ result.importErrors(validatorErr);
+ }
+ }
+ }
+
+ if (typeof options.rewrite == 'function') {
+ var value = options.rewrite.call(this, instance, schema, options, ctx);
+ result.instance = value;
+ }
+ return result;
+};
+
+/**
+* @private
+* @param Object schema
+* @param SchemaContext ctx
+* @returns Object schema or resolved schema
+*/
+Validator.prototype.schemaTraverser = function schemaTraverser (schemaobj, s) {
+ schemaobj.schema = helpers.deepMerge(schemaobj.schema, this.superResolve(s, schemaobj.ctx));
+};
+
+/**
+* @private
+* @param Object schema
+* @param SchemaContext ctx
+* @returns Object schema or resolved schema
+*/
+Validator.prototype.superResolve = function superResolve (schema, ctx) {
+ var ref = shouldResolve(schema);
+ if(ref) {
+ return this.resolve(schema, ref, ctx).subschema;
+ }
+ return schema;
+};
+
+/**
+* @private
+* @param Object schema
+* @param Object switchSchema
+* @param SchemaContext ctx
+* @return Object resolved schemas {subschema:String, switchSchema: String}
+* @throws SchemaError
+*/
+Validator.prototype.resolve = function resolve (schema, switchSchema, ctx) {
+ switchSchema = ctx.resolve(switchSchema);
+ // First see if the schema exists under the provided URI
+ if (ctx.schemas[switchSchema]) {
+ return {subschema: ctx.schemas[switchSchema], switchSchema: switchSchema};
+ }
+ // Else try walking the property pointer
+ var parsed = urilib.parse(switchSchema);
+ var fragment = parsed && parsed.hash;
+ var document = fragment && fragment.length && switchSchema.substr(0, switchSchema.length - fragment.length);
+ if (!document || !ctx.schemas[document]) {
+ throw new SchemaError("no such schema <" + switchSchema + ">", schema);
+ }
+ var subschema = helpers.objectGetPath(ctx.schemas[document], fragment.substr(1));
+ if(subschema===undefined){
+ throw new SchemaError("no such schema " + fragment + " located in <" + document + ">", schema);
+ }
+ return {subschema: subschema, switchSchema: switchSchema};
+};
+
+/**
+ * Tests whether the instance if of a certain type.
+ * @private
+ * @param instance
+ * @param schema
+ * @param options
+ * @param ctx
+ * @param type
+ * @return {boolean}
+ */
+Validator.prototype.testType = function validateType (instance, schema, options, ctx, type) {
+ if(type===undefined){
+ return;
+ }else if(type===null){
+ throw new SchemaError('Unexpected null in "type" keyword');
+ }
+ if (typeof this.types[type] == 'function') {
+ return this.types[type].call(this, instance);
+ }
+ if (type && typeof type == 'object') {
+ var res = this.validateSchema(instance, type, options, ctx);
+ return res === undefined || !(res && res.errors.length);
+ }
+ // Undefined or properties not on the list are acceptable, same as not being defined
+ return true;
+};
+
+var types = Validator.prototype.types = {};
+types.string = function testString (instance) {
+ return typeof instance == 'string';
+};
+types.number = function testNumber (instance) {
+ // isFinite returns false for NaN, Infinity, and -Infinity
+ return typeof instance == 'number' && isFinite(instance);
+};
+types.integer = function testInteger (instance) {
+ return (typeof instance == 'number') && instance % 1 === 0;
+};
+types.boolean = function testBoolean (instance) {
+ return typeof instance == 'boolean';
+};
+types.array = function testArray (instance) {
+ return Array.isArray(instance);
+};
+types['null'] = function testNull (instance) {
+ return instance === null;
+};
+types.date = function testDate (instance) {
+ return instance instanceof Date;
+};
+types.any = function testAny (instance) {
+ return true;
+};
+types.object = function testObject (instance) {
+ // TODO: fix this - see #15
+ return instance && (typeof instance === 'object') && !(Array.isArray(instance)) && !(instance instanceof Date);
+};
+
+#EXPORT Validator
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