Update schema validation to throw errors
This commit is contained in:
toasted-nutbread
parent
36e641e001
commit
964db74108
@ -93,10 +93,7 @@ class JsonSchemaProxyHandler {
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value = JsonSchema.isolate(value);
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const error = JsonSchemaProxyHandler.validate(value, propertySchema);
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if (error !== null) {
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throw new Error(`Invalid value: ${error}`);
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}
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JsonSchemaProxyHandler.validate(value, propertySchema);
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target[property] = value;
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return true;
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@ -193,186 +190,175 @@ class JsonSchemaProxyHandler {
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}
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static validate(value, schema) {
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let result = JsonSchemaProxyHandler.validateSingleSchema(value, schema);
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if (result !== null) { return result; }
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result = JsonSchemaProxyHandler.validateConditional(value, schema);
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if (result !== null) { return result; }
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result = JsonSchemaProxyHandler.validateAllOf(value, schema);
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if (result !== null) { return result; }
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result = JsonSchemaProxyHandler.validateAnyOf(value, schema);
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if (result !== null) { return result; }
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result = JsonSchemaProxyHandler.validateOneOf(value, schema);
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if (result !== null) { return result; }
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result = JsonSchemaProxyHandler.validateNoneOf(value, schema);
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if (result !== null) { return result; }
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return null;
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JsonSchemaProxyHandler.validateSingleSchema(value, schema);
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JsonSchemaProxyHandler.validateConditional(value, schema);
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JsonSchemaProxyHandler.validateAllOf(value, schema);
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JsonSchemaProxyHandler.validateAnyOf(value, schema);
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JsonSchemaProxyHandler.validateOneOf(value, schema);
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JsonSchemaProxyHandler.validateNoneOf(value, schema);
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}
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static validateConditional(value, schema) {
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const ifCondition = schema.if;
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if (!JsonSchemaProxyHandler.isObject(ifCondition)) { return null; }
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if (!JsonSchemaProxyHandler.isObject(ifCondition)) { return; }
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const thenSchema = schema.then;
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if (JsonSchemaProxyHandler.isObject(thenSchema)) {
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const result = JsonSchemaProxyHandler.validate(value, thenSchema);
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if (result !== null) { return `then conditional didn't match: ${result}`; }
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JsonSchemaProxyHandler.validate(value, thenSchema);
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}
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const elseSchema = schema.else;
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if (JsonSchemaProxyHandler.isObject(elseSchema)) {
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const result = JsonSchemaProxyHandler.validate(value, thenSchema);
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if (result !== null) { return `else conditional didn't match: ${result}`; }
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JsonSchemaProxyHandler.validate(value, thenSchema);
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}
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return null;
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}
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static validateAllOf(value, schema) {
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const subSchemas = schema.allOf;
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if (!Array.isArray(subSchemas)) { return null; }
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if (!Array.isArray(subSchemas)) { return; }
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for (let i = 0; i < subSchemas.length; ++i) {
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const result = JsonSchemaProxyHandler.validate(value, subSchemas[i]);
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if (result !== null) { return `allOf[${i}] schema didn't match: ${result}`; }
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JsonSchemaProxyHandler.validate(value, subSchemas[i]);
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}
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return null;
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}
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static validateAnyOf(value, schema) {
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const subSchemas = schema.anyOf;
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if (!Array.isArray(subSchemas)) { return null; }
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if (!Array.isArray(subSchemas)) { return; }
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for (let i = 0; i < subSchemas.length; ++i) {
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const result = JsonSchemaProxyHandler.validate(value, subSchemas[i]);
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if (result === null) { return null; }
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try {
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JsonSchemaProxyHandler.validate(value, subSchemas[i]);
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return;
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} catch (e) {
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// NOP
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}
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return '0 anyOf schemas matched';
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}
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throw new JsonSchemaValidationError('0 anyOf schemas matched', value, schema);
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}
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static validateOneOf(value, schema) {
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const subSchemas = schema.oneOf;
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if (!Array.isArray(subSchemas)) { return null; }
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if (!Array.isArray(subSchemas)) { return; }
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let count = 0;
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for (let i = 0; i < subSchemas.length; ++i) {
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const result = JsonSchemaProxyHandler.validate(value, subSchemas[i]);
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if (result === null) { ++count; }
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try {
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JsonSchemaProxyHandler.validate(value, subSchemas[i]);
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++count;
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} catch (e) {
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// NOP
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}
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}
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if (count !== 1) {
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throw new JsonSchemaValidationError(`${count} oneOf schemas matched`, value, schema);
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}
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return count === 1 ? null : `${count} oneOf schemas matched`;
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}
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static validateNoneOf(value, schema) {
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const subSchemas = schema.not;
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if (!Array.isArray(subSchemas)) { return null; }
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if (!Array.isArray(subSchemas)) { return; }
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for (let i = 0; i < subSchemas.length; ++i) {
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const result = JsonSchemaProxyHandler.validate(value, subSchemas[i]);
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if (result === null) { return `not[${i}] schema matched`; }
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try {
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JsonSchemaProxyHandler.validate(value, subSchemas[i]);
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} catch (e) {
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continue;
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}
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throw new JsonSchemaValidationError(`not[${i}] schema matched`, value, schema);
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}
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return null;
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}
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static validateSingleSchema(value, schema) {
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const type = JsonSchemaProxyHandler.getValueType(value);
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const schemaType = schema.type;
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if (!JsonSchemaProxyHandler.isValueTypeAny(value, type, schemaType)) {
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return `Value type ${type} does not match schema type ${schemaType}`;
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throw new JsonSchemaValidationError(`Value type ${type} does not match schema type ${schemaType}`, value, schema);
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}
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const schemaEnum = schema.enum;
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if (Array.isArray(schemaEnum) && !JsonSchemaProxyHandler.valuesAreEqualAny(value, schemaEnum)) {
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return 'Invalid enum value';
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throw new JsonSchemaValidationError('Invalid enum value', value, schema);
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}
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switch (type) {
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case 'number':
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return JsonSchemaProxyHandler.validateNumber(value, schema);
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JsonSchemaProxyHandler.validateNumber(value, schema);
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break;
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case 'string':
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return JsonSchemaProxyHandler.validateString(value, schema);
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JsonSchemaProxyHandler.validateString(value, schema);
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break;
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case 'array':
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return JsonSchemaProxyHandler.validateArray(value, schema);
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JsonSchemaProxyHandler.validateArray(value, schema);
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break;
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case 'object':
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return JsonSchemaProxyHandler.validateObject(value, schema);
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default:
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return null;
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JsonSchemaProxyHandler.validateObject(value, schema);
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break;
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}
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}
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static validateNumber(value, schema) {
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const multipleOf = schema.multipleOf;
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if (typeof multipleOf === 'number' && Math.floor(value / multipleOf) * multipleOf !== value) {
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return `Number is not a multiple of ${multipleOf}`;
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throw new JsonSchemaValidationError(`Number is not a multiple of ${multipleOf}`, value, schema);
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}
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const minimum = schema.minimum;
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if (typeof minimum === 'number' && value < minimum) {
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return `Number is less than ${minimum}`;
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throw new JsonSchemaValidationError(`Number is less than ${minimum}`, value, schema);
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}
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const exclusiveMinimum = schema.exclusiveMinimum;
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if (typeof exclusiveMinimum === 'number' && value <= exclusiveMinimum) {
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return `Number is less than or equal to ${exclusiveMinimum}`;
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throw new JsonSchemaValidationError(`Number is less than or equal to ${exclusiveMinimum}`, value, schema);
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}
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const maximum = schema.maximum;
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if (typeof maximum === 'number' && value > maximum) {
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return `Number is greater than ${maximum}`;
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throw new JsonSchemaValidationError(`Number is greater than ${maximum}`, value, schema);
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}
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const exclusiveMaximum = schema.exclusiveMaximum;
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if (typeof exclusiveMaximum === 'number' && value >= exclusiveMaximum) {
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return `Number is greater than or equal to ${exclusiveMaximum}`;
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throw new JsonSchemaValidationError(`Number is greater than or equal to ${exclusiveMaximum}`, value, schema);
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}
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return null;
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}
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static validateString(value, schema) {
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const minLength = schema.minLength;
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if (typeof minLength === 'number' && value.length < minLength) {
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return 'String length too short';
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throw new JsonSchemaValidationError('String length too short', value, schema);
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}
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const maxLength = schema.maxLength;
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if (typeof maxLength === 'number' && value.length > maxLength) {
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return 'String length too long';
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throw new JsonSchemaValidationError('String length too long', value, schema);
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}
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return null;
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}
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static validateArray(value, schema) {
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const minItems = schema.minItems;
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if (typeof minItems === 'number' && value.length < minItems) {
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return 'Array length too short';
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throw new JsonSchemaValidationError('Array length too short', value, schema);
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}
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const maxItems = schema.maxItems;
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if (typeof maxItems === 'number' && value.length > maxItems) {
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return 'Array length too long';
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throw new JsonSchemaValidationError('Array length too long', value, schema);
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}
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for (let i = 0, ii = value.length; i < ii; ++i) {
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const propertySchema = JsonSchemaProxyHandler.getPropertySchema(schema, i, value);
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if (propertySchema === null) {
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return `No schema found for array[${i}]`;
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throw new JsonSchemaValidationError(`No schema found for array[${i}]`, value, schema);
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}
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const error = JsonSchemaProxyHandler.validate(value[i], propertySchema);
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if (error !== null) {
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return error;
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JsonSchemaProxyHandler.validate(value[i], propertySchema);
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}
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}
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return null;
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}
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static validateObject(value, schema) {
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const properties = new Set(Object.getOwnPropertyNames(value));
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@ -380,35 +366,30 @@ class JsonSchemaProxyHandler {
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if (Array.isArray(required)) {
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for (const property of required) {
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if (!properties.has(property)) {
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return `Missing property ${property}`;
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throw new JsonSchemaValidationError(`Missing property ${property}`, value, schema);
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}
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}
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}
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const minProperties = schema.minProperties;
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if (typeof minProperties === 'number' && properties.length < minProperties) {
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return 'Not enough object properties';
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throw new JsonSchemaValidationError('Not enough object properties', value, schema);
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}
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const maxProperties = schema.maxProperties;
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if (typeof maxProperties === 'number' && properties.length > maxProperties) {
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return 'Too many object properties';
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throw new JsonSchemaValidationError('Too many object properties', value, schema);
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}
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for (const property of properties) {
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const propertySchema = JsonSchemaProxyHandler.getPropertySchema(schema, property, value);
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if (propertySchema === null) {
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return `No schema found for ${property}`;
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throw new JsonSchemaValidationError(`No schema found for ${property}`, value, schema);
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}
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const error = JsonSchemaProxyHandler.validate(value[property], propertySchema);
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if (error !== null) {
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return error;
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JsonSchemaProxyHandler.validate(value[property], propertySchema);
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}
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}
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return null;
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}
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static isValueTypeAny(value, type, schemaTypes) {
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if (typeof schemaTypes === 'string') {
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return JsonSchemaProxyHandler.isValueType(value, type, schemaTypes);
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@ -547,6 +528,15 @@ class JsonSchemaProxyHandler {
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JsonSchemaProxyHandler._unconstrainedSchema = {};
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class JsonSchemaValidationError extends Error {
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constructor(message, value, schema, path) {
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super(message);
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this.value = value;
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this.schema = schema;
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this.path = path;
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}
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}
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class JsonSchema {
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static createProxy(target, schema) {
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return new Proxy(target, new JsonSchemaProxyHandler(schema));
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