File: /var/www/design.system/node_modules/@rushstack/node-core-library/lib/JsonSchema.js.map
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Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.\n// See LICENSE in the project root for license information.\n\nimport * as os from 'os';\nimport * as path from 'path';\n\nimport { FileSystem } from './FileSystem';\nimport { JsonFile, type JsonObject } from './JsonFile';\n\nimport Ajv, { type Options as AjvOptions, type ErrorObject, type ValidateFunction } from 'ajv';\nimport AjvDraft04 from 'ajv-draft-04';\nimport addFormats from 'ajv-formats';\n\ninterface ISchemaWithId {\n // draft-04 uses \"id\"\n id: string | undefined;\n // draft-06 and higher uses \"$id\"\n $id: string | undefined;\n}\n\n/**\n * Specifies the version of json-schema to be validated against.\n * https://json-schema.org/specification\n * @public\n */\nexport type JsonSchemaVersion = 'draft-04' | 'draft-07';\n\n/**\n * A definition for a custom format to consider during validation.\n * @public\n */\nexport interface IJsonSchemaCustomFormat<T extends string | number> {\n /**\n * The base JSON type.\n */\n type: T extends string ? 'string' : T extends number ? 'number' : never;\n\n /**\n * A validation function for the format.\n * @param data - The raw field data to validate.\n * @returns whether the data is valid according to the format.\n */\n validate: (data: T) => boolean;\n}\n\n/**\n * Callback function arguments for {@link JsonSchema.validateObjectWithCallback}\n * @public\n */\nexport interface IJsonSchemaErrorInfo {\n /**\n * The ajv error list, formatted as an indented text string.\n */\n details: string;\n}\n\n/**\n * Options for {@link JsonSchema.validateObjectWithCallback}\n * @public\n */\nexport interface IJsonSchemaValidateObjectWithOptions {\n /**\n * If true, the root-level `$schema` property in a JSON object being validated will be ignored during validation.\n * If this is set to `true` and the schema requires a `$schema` property, validation will fail.\n */\n ignoreSchemaField?: boolean;\n}\n\n/**\n * Options for {@link JsonSchema.validateObject}\n * @public\n */\nexport interface IJsonSchemaValidateOptions extends IJsonSchemaValidateObjectWithOptions {\n /**\n * A custom header that will be used to report schema errors.\n * @remarks\n * If omitted, the default header is \"JSON validation failed:\". The error message starts with\n * the header, followed by the full input filename, followed by the ajv error list.\n * If you wish to customize all aspects of the error message, use JsonFile.loadAndValidateWithCallback()\n * or JsonSchema.validateObjectWithCallback().\n */\n customErrorHeader?: string;\n}\n\n/**\n * Options for {@link JsonSchema.fromFile} and {@link JsonSchema.fromLoadedObject}\n * @public\n */\nexport interface IJsonSchemaLoadOptions {\n /**\n * Other schemas that this schema references, e.g. via the \"$ref\" directive.\n * @remarks\n * The tree of dependent schemas may reference the same schema more than once.\n * However, if the same schema \"$id\" is used by two different JsonSchema instances,\n * an error will be reported. This means you cannot load the same filename twice\n * and use them both together, and you cannot have diamond dependencies on different\n * versions of the same schema. 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To avoid schema errors at runtime, it's recommended to create a unit test that calls\n * JsonSchema.ensureCompiled() for each of your schema objects.\n *\n * @public\n */\nexport class JsonSchema {\n private _dependentSchemas: JsonSchema[] = [];\n private _filename: string = '';\n private _validator: ValidateFunction | undefined = undefined;\n private _schemaObject: JsonObject | undefined = undefined;\n private _schemaVersion: JsonSchemaVersion | undefined = undefined;\n private _customFormats:\n | Record<string, IJsonSchemaCustomFormat<string> | IJsonSchemaCustomFormat<number>>\n | undefined = undefined;\n\n private constructor() {}\n\n /**\n * Registers a JsonSchema that will be loaded from a file on disk.\n * @remarks\n * NOTE: An error occurs if the file does not exist; however, the file itself is not loaded or validated\n * until it the schema is actually used.\n */\n public static fromFile(filename: string, options?: IJsonSchemaFromFileOptions): JsonSchema {\n // This is a quick and inexpensive test to avoid the catch the most common errors early.\n // Full validation will happen later in JsonSchema.compile().\n if (!FileSystem.exists(filename)) {\n throw new Error('Schema file not found: ' + filename);\n }\n\n const schema: JsonSchema = new JsonSchema();\n schema._filename = filename;\n\n if (options) {\n schema._dependentSchemas = options.dependentSchemas || [];\n schema._schemaVersion = options.schemaVersion;\n schema._customFormats = options.customFormats;\n }\n\n return schema;\n }\n\n /**\n * Registers a JsonSchema that will be loaded from an object.\n */\n public static fromLoadedObject(\n schemaObject: JsonObject,\n options?: IJsonSchemaFromObjectOptions\n ): JsonSchema {\n const schema: JsonSchema = new JsonSchema();\n schema._schemaObject = schemaObject;\n\n if (options) {\n schema._dependentSchemas = options.dependentSchemas || [];\n schema._schemaVersion = options.schemaVersion;\n schema._customFormats = options.customFormats;\n }\n\n return schema;\n }\n\n private static _collectDependentSchemas(\n collectedSchemas: JsonSchema[],\n dependentSchemas: JsonSchema[],\n seenObjects: Set<JsonSchema>,\n seenIds: Set<string>\n ): void {\n for (const dependentSchema of dependentSchemas) {\n // It's okay for the same schema to appear multiple times in the tree, but we only process it once\n if (seenObjects.has(dependentSchema)) {\n continue;\n }\n seenObjects.add(dependentSchema);\n\n const schemaId: string = dependentSchema._ensureLoaded();\n if (schemaId === '') {\n throw new Error(\n `This schema ${dependentSchema.shortName} cannot be referenced` +\n ' because is missing the \"id\" (draft-04) or \"$id\" field'\n );\n }\n if (seenIds.has(schemaId)) {\n throw new Error(\n `This schema ${dependentSchema.shortName} has the same \"id\" (draft-04) or \"$id\" as another schema in this set`\n );\n }\n\n seenIds.add(schemaId);\n\n collectedSchemas.push(dependentSchema);\n\n JsonSchema._collectDependentSchemas(\n collectedSchemas,\n dependentSchema._dependentSchemas,\n seenObjects,\n seenIds\n );\n }\n }\n\n /**\n * Used to nicely format the ZSchema error tree.\n */\n private static _formatErrorDetails(errorDetails: ErrorObject[]): string {\n return JsonSchema._formatErrorDetailsHelper(errorDetails, '', '');\n }\n\n /**\n * Used by _formatErrorDetails.\n */\n private static _formatErrorDetailsHelper(\n errorDetails: ErrorObject[],\n indent: string,\n buffer: string\n ): string {\n for (const errorDetail of errorDetails) {\n buffer += os.EOL + indent + `Error: #${errorDetail.instancePath}`;\n\n buffer += os.EOL + indent + ` ${errorDetail.message}`;\n if (errorDetail.params?.additionalProperty) {\n buffer += `: ${errorDetail.params?.additionalProperty}`;\n }\n }\n\n return buffer;\n }\n\n /**\n * Returns a short name for this schema, for use in error messages.\n * @remarks\n * If the schema was loaded from a file, then the base filename is used. Otherwise, the \"$id\"\n * field is used if available.\n */\n public get shortName(): string {\n if (!this._filename) {\n if (this._schemaObject) {\n const schemaWithId: ISchemaWithId = this._schemaObject as ISchemaWithId;\n if (schemaWithId.id) {\n return schemaWithId.id;\n } else if (schemaWithId.$id) {\n return schemaWithId.$id;\n }\n }\n return '(anonymous schema)';\n } else {\n return path.basename(this._filename);\n }\n }\n\n /**\n * If not already done, this loads the schema from disk and compiles it.\n * @remarks\n * Any dependencies will be compiled as well.\n */\n public ensureCompiled(): void {\n this._ensureLoaded();\n\n if (!this._validator) {\n const targetSchemaVersion: JsonSchemaVersion | undefined =\n this._schemaVersion ?? _inferJsonSchemaVersion(this._schemaObject);\n const validatorOptions: AjvOptions = {\n strictSchema: true,\n allowUnionTypes: true\n };\n\n let validator: Ajv;\n // Keep legacy support for older draft-04 schema\n switch (targetSchemaVersion) {\n case 'draft-04': {\n validator = new AjvDraft04(validatorOptions);\n break;\n }\n\n case 'draft-07':\n default: {\n validator = new Ajv(validatorOptions);\n break;\n }\n }\n\n // Enable json-schema format validation\n // https://ajv.js.org/packages/ajv-formats.html\n addFormats(validator);\n if (this._customFormats) {\n for (const [name, format] of Object.entries(this._customFormats)) {\n validator.addFormat(name, { ...format, async: false });\n }\n }\n\n const collectedSchemas: JsonSchema[] = [];\n const seenObjects: Set<JsonSchema> = new Set<JsonSchema>();\n const seenIds: Set<string> = new Set<string>();\n\n JsonSchema._collectDependentSchemas(collectedSchemas, this._dependentSchemas, seenObjects, seenIds);\n\n // Validate each schema in order. We specifically do not supply them all together, because we want\n // to make sure that circular references will fail to validate.\n for (const collectedSchema of collectedSchemas) {\n validator.validateSchema(collectedSchema._schemaObject) as boolean;\n if (validator.errors && validator.errors.length > 0) {\n throw new Error(\n `Failed to validate schema \"${collectedSchema.shortName}\":` +\n os.EOL +\n JsonSchema._formatErrorDetails(validator.errors)\n );\n }\n validator.addSchema(collectedSchema._schemaObject);\n }\n\n this._validator = validator.compile(this._schemaObject);\n }\n }\n\n /**\n * Validates the specified JSON object against this JSON schema. If the validation fails,\n * an exception will be thrown.\n * @param jsonObject - The JSON data to be validated\n * @param filenameForErrors - The filename that the JSON data was available, or an empty string\n * if not applicable\n * @param options - Other options that control the validation\n */\n public validateObject(\n jsonObject: JsonObject,\n filenameForErrors: string,\n options?: IJsonSchemaValidateOptions\n ): void {\n this.validateObjectWithCallback(\n jsonObject,\n (errorInfo: IJsonSchemaErrorInfo) => {\n const prefix: string = options?.customErrorHeader ?? 'JSON validation failed:';\n\n throw new Error(prefix + os.EOL + filenameForErrors + os.EOL + errorInfo.details);\n },\n options\n );\n }\n\n /**\n * Validates the specified JSON object against this JSON schema. If the validation fails,\n * a callback is called for each validation error.\n */\n public validateObjectWithCallback(\n jsonObject: JsonObject,\n errorCallback: (errorInfo: IJsonSchemaErrorInfo) => void,\n options?: IJsonSchemaValidateObjectWithOptions\n ): void {\n this.ensureCompiled();\n\n if (options?.ignoreSchemaField) {\n const {\n // eslint-disable-next-line @typescript-eslint/no-unused-vars\n $schema,\n ...remainder\n } = jsonObject;\n jsonObject = remainder;\n }\n\n if (this._validator && !this._validator(jsonObject)) {\n const errorDetails: string = JsonSchema._formatErrorDetails(this._validator.errors!);\n\n const args: IJsonSchemaErrorInfo = {\n details: errorDetails\n };\n errorCallback(args);\n }\n }\n\n private _ensureLoaded(): string {\n if (!this._schemaObject) {\n this._schemaObject = JsonFile.load(this._filename);\n }\n return (this._schemaObject as ISchemaWithId).id || (this._schemaObject as ISchemaWithId).$id || '';\n }\n}\n"]}