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path: root/ext/bg/js/json-schema.js
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-rw-r--r--ext/bg/js/json-schema.js158
1 files changed, 74 insertions, 84 deletions
diff --git a/ext/bg/js/json-schema.js b/ext/bg/js/json-schema.js
index c20cb502..65fbce41 100644
--- a/ext/bg/js/json-schema.js
+++ b/ext/bg/js/json-schema.js
@@ -93,10 +93,7 @@ class JsonSchemaProxyHandler {
value = JsonSchema.isolate(value);
- const error = JsonSchemaProxyHandler.validate(value, propertySchema);
- if (error !== null) {
- throw new Error(`Invalid value: ${error}`);
- }
+ JsonSchemaProxyHandler.validate(value, propertySchema);
target[property] = value;
return true;
@@ -193,184 +190,173 @@ class JsonSchemaProxyHandler {
}
static validate(value, schema) {
- let result = JsonSchemaProxyHandler.validateSingleSchema(value, schema);
- if (result !== null) { return result; }
-
- result = JsonSchemaProxyHandler.validateConditional(value, schema);
- if (result !== null) { return result; }
-
- result = JsonSchemaProxyHandler.validateAllOf(value, schema);
- if (result !== null) { return result; }
-
- result = JsonSchemaProxyHandler.validateAnyOf(value, schema);
- if (result !== null) { return result; }
-
- result = JsonSchemaProxyHandler.validateOneOf(value, schema);
- if (result !== null) { return result; }
-
- result = JsonSchemaProxyHandler.validateNoneOf(value, schema);
- if (result !== null) { return result; }
-
- return null;
+ JsonSchemaProxyHandler.validateSingleSchema(value, schema);
+ JsonSchemaProxyHandler.validateConditional(value, schema);
+ JsonSchemaProxyHandler.validateAllOf(value, schema);
+ JsonSchemaProxyHandler.validateAnyOf(value, schema);
+ JsonSchemaProxyHandler.validateOneOf(value, schema);
+ JsonSchemaProxyHandler.validateNoneOf(value, schema);
}
static validateConditional(value, schema) {
const ifCondition = schema.if;
- if (!JsonSchemaProxyHandler.isObject(ifCondition)) { return null; }
+ if (!JsonSchemaProxyHandler.isObject(ifCondition)) { return; }
const thenSchema = schema.then;
if (JsonSchemaProxyHandler.isObject(thenSchema)) {
- const result = JsonSchemaProxyHandler.validate(value, thenSchema);
- if (result !== null) { return `then conditional didn't match: ${result}`; }
+ JsonSchemaProxyHandler.validate(value, thenSchema);
}
const elseSchema = schema.else;
if (JsonSchemaProxyHandler.isObject(elseSchema)) {
- const result = JsonSchemaProxyHandler.validate(value, thenSchema);
- if (result !== null) { return `else conditional didn't match: ${result}`; }
+ JsonSchemaProxyHandler.validate(value, thenSchema);
}
-
- return null;
}
static validateAllOf(value, schema) {
const subSchemas = schema.allOf;
- if (!Array.isArray(subSchemas)) { return null; }
+ if (!Array.isArray(subSchemas)) { return; }
for (let i = 0; i < subSchemas.length; ++i) {
- const result = JsonSchemaProxyHandler.validate(value, subSchemas[i]);
- if (result !== null) { return `allOf[${i}] schema didn't match: ${result}`; }
+ JsonSchemaProxyHandler.validate(value, subSchemas[i]);
}
- return null;
}
static validateAnyOf(value, schema) {
const subSchemas = schema.anyOf;
- if (!Array.isArray(subSchemas)) { return null; }
+ if (!Array.isArray(subSchemas)) { return; }
for (let i = 0; i < subSchemas.length; ++i) {
- const result = JsonSchemaProxyHandler.validate(value, subSchemas[i]);
- if (result === null) { return null; }
+ try {
+ JsonSchemaProxyHandler.validate(value, subSchemas[i]);
+ return;
+ } catch (e) {
+ // NOP
+ }
}
- return '0 anyOf schemas matched';
+
+ throw new JsonSchemaValidationError('0 anyOf schemas matched', value, schema);
}
static validateOneOf(value, schema) {
const subSchemas = schema.oneOf;
- if (!Array.isArray(subSchemas)) { return null; }
+ if (!Array.isArray(subSchemas)) { return; }
let count = 0;
for (let i = 0; i < subSchemas.length; ++i) {
- const result = JsonSchemaProxyHandler.validate(value, subSchemas[i]);
- if (result === null) { ++count; }
+ try {
+ JsonSchemaProxyHandler.validate(value, subSchemas[i]);
+ ++count;
+ } catch (e) {
+ // NOP
+ }
+ }
+
+ if (count !== 1) {
+ throw new JsonSchemaValidationError(`${count} oneOf schemas matched`, value, schema);
}
- return count === 1 ? null : `${count} oneOf schemas matched`;
}
static validateNoneOf(value, schema) {
const subSchemas = schema.not;
- if (!Array.isArray(subSchemas)) { return null; }
+ if (!Array.isArray(subSchemas)) { return; }
for (let i = 0; i < subSchemas.length; ++i) {
- const result = JsonSchemaProxyHandler.validate(value, subSchemas[i]);
- if (result === null) { return `not[${i}] schema matched`; }
+ try {
+ JsonSchemaProxyHandler.validate(value, subSchemas[i]);
+ } catch (e) {
+ continue;
+ }
+ throw new JsonSchemaValidationError(`not[${i}] schema matched`, value, schema);
}
- return null;
}
static validateSingleSchema(value, schema) {
const type = JsonSchemaProxyHandler.getValueType(value);
const schemaType = schema.type;
if (!JsonSchemaProxyHandler.isValueTypeAny(value, type, schemaType)) {
- return `Value type ${type} does not match schema type ${schemaType}`;
+ throw new JsonSchemaValidationError(`Value type ${type} does not match schema type ${schemaType}`, value, schema);
}
const schemaEnum = schema.enum;
if (Array.isArray(schemaEnum) && !JsonSchemaProxyHandler.valuesAreEqualAny(value, schemaEnum)) {
- return 'Invalid enum value';
+ throw new JsonSchemaValidationError('Invalid enum value', value, schema);
}
switch (type) {
case 'number':
- return JsonSchemaProxyHandler.validateNumber(value, schema);
+ JsonSchemaProxyHandler.validateNumber(value, schema);
+ break;
case 'string':
- return JsonSchemaProxyHandler.validateString(value, schema);
+ JsonSchemaProxyHandler.validateString(value, schema);
+ break;
case 'array':
- return JsonSchemaProxyHandler.validateArray(value, schema);
+ JsonSchemaProxyHandler.validateArray(value, schema);
+ break;
case 'object':
- return JsonSchemaProxyHandler.validateObject(value, schema);
- default:
- return null;
+ JsonSchemaProxyHandler.validateObject(value, schema);
+ break;
}
}
static validateNumber(value, schema) {
const multipleOf = schema.multipleOf;
if (typeof multipleOf === 'number' && Math.floor(value / multipleOf) * multipleOf !== value) {
- return `Number is not a multiple of ${multipleOf}`;
+ throw new JsonSchemaValidationError(`Number is not a multiple of ${multipleOf}`, value, schema);
}
const minimum = schema.minimum;
if (typeof minimum === 'number' && value < minimum) {
- return `Number is less than ${minimum}`;
+ throw new JsonSchemaValidationError(`Number is less than ${minimum}`, value, schema);
}
const exclusiveMinimum = schema.exclusiveMinimum;
if (typeof exclusiveMinimum === 'number' && value <= exclusiveMinimum) {
- return `Number is less than or equal to ${exclusiveMinimum}`;
+ throw new JsonSchemaValidationError(`Number is less than or equal to ${exclusiveMinimum}`, value, schema);
}
const maximum = schema.maximum;
if (typeof maximum === 'number' && value > maximum) {
- return `Number is greater than ${maximum}`;
+ throw new JsonSchemaValidationError(`Number is greater than ${maximum}`, value, schema);
}
const exclusiveMaximum = schema.exclusiveMaximum;
if (typeof exclusiveMaximum === 'number' && value >= exclusiveMaximum) {
- return `Number is greater than or equal to ${exclusiveMaximum}`;
+ throw new JsonSchemaValidationError(`Number is greater than or equal to ${exclusiveMaximum}`, value, schema);
}
-
- return null;
}
static validateString(value, schema) {
const minLength = schema.minLength;
if (typeof minLength === 'number' && value.length < minLength) {
- return 'String length too short';
+ throw new JsonSchemaValidationError('String length too short', value, schema);
}
const maxLength = schema.maxLength;
if (typeof maxLength === 'number' && value.length > maxLength) {
- return 'String length too long';
+ throw new JsonSchemaValidationError('String length too long', value, schema);
}
-
- return null;
}
static validateArray(value, schema) {
const minItems = schema.minItems;
if (typeof minItems === 'number' && value.length < minItems) {
- return 'Array length too short';
+ throw new JsonSchemaValidationError('Array length too short', value, schema);
}
const maxItems = schema.maxItems;
if (typeof maxItems === 'number' && value.length > maxItems) {
- return 'Array length too long';
+ throw new JsonSchemaValidationError('Array length too long', value, schema);
}
for (let i = 0, ii = value.length; i < ii; ++i) {
const propertySchema = JsonSchemaProxyHandler.getPropertySchema(schema, i, value);
if (propertySchema === null) {
- return `No schema found for array[${i}]`;
+ throw new JsonSchemaValidationError(`No schema found for array[${i}]`, value, schema);
}
- const error = JsonSchemaProxyHandler.validate(value[i], propertySchema);
- if (error !== null) {
- return error;
- }
+ JsonSchemaProxyHandler.validate(value[i], propertySchema);
}
-
- return null;
}
static validateObject(value, schema) {
@@ -380,33 +366,28 @@ class JsonSchemaProxyHandler {
if (Array.isArray(required)) {
for (const property of required) {
if (!properties.has(property)) {
- return `Missing property ${property}`;
+ throw new JsonSchemaValidationError(`Missing property ${property}`, value, schema);
}
}
}
const minProperties = schema.minProperties;
if (typeof minProperties === 'number' && properties.length < minProperties) {
- return 'Not enough object properties';
+ throw new JsonSchemaValidationError('Not enough object properties', value, schema);
}
const maxProperties = schema.maxProperties;
if (typeof maxProperties === 'number' && properties.length > maxProperties) {
- return 'Too many object properties';
+ throw new JsonSchemaValidationError('Too many object properties', value, schema);
}
for (const property of properties) {
const propertySchema = JsonSchemaProxyHandler.getPropertySchema(schema, property, value);
if (propertySchema === null) {
- return `No schema found for ${property}`;
- }
- const error = JsonSchemaProxyHandler.validate(value[property], propertySchema);
- if (error !== null) {
- return error;
+ throw new JsonSchemaValidationError(`No schema found for ${property}`, value, schema);
}
+ JsonSchemaProxyHandler.validate(value[property], propertySchema);
}
-
- return null;
}
static isValueTypeAny(value, type, schemaTypes) {
@@ -547,6 +528,15 @@ class JsonSchemaProxyHandler {
JsonSchemaProxyHandler._unconstrainedSchema = {};
+class JsonSchemaValidationError extends Error {
+ constructor(message, value, schema, path) {
+ super(message);
+ this.value = value;
+ this.schema = schema;
+ this.path = path;
+ }
+}
+
class JsonSchema {
static createProxy(target, schema) {
return new Proxy(target, new JsonSchemaProxyHandler(schema));