happy-dom
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Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.
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JavaScript
import DOMException from '../../exception/DOMException.js';
import * as PropertySymbol from '../../PropertySymbol.js';
import DOMExceptionNameEnum from '../../exception/DOMExceptionNameEnum.js';
const VALID_REFERRER_POLICIES = [
'',
'no-referrer',
'no-referrer-when-downgrade',
'same-origin',
'origin',
'strict-origin',
'origin-when-cross-origin',
'strict-origin-when-cross-origin',
'unsafe-url'
];
const VALID_REDIRECTS = ['error', 'manual', 'follow'];
const SUPPORTED_SCHEMAS = ['data:', 'http:', 'https:'];
const FORBIDDEN_REQUEST_METHODS = ['TRACE', 'TRACK', 'CONNECT'];
const REQUEST_METHOD_REGEXP = /^[A-Z]+$/;
/**
* Fetch request validation utility.
*/
export default class FetchRequestValidationUtility {
/**
* Validates request method.
*
* @throws DOMException
* @param request Request.
*/
static validateMethod(request) {
if (!request.method || FORBIDDEN_REQUEST_METHODS.includes(request.method)) {
throw new DOMException(`'${request.method || ''}' is not a valid HTTP method.`, DOMExceptionNameEnum.invalidStateError);
}
if (!REQUEST_METHOD_REGEXP.test(request.method)) {
throw new DOMException(`'${request.method}' HTTP method is unsupported.`, DOMExceptionNameEnum.invalidStateError);
}
}
/**
* Validates request body.
*
* @throws DOMException
* @param request Request.
*/
static validateBody(request) {
if (request.body && (request.method === 'GET' || request.method === 'HEAD')) {
throw new DOMException(`Request with GET/HEAD method cannot have body.`, DOMExceptionNameEnum.invalidStateError);
}
}
/**
* Validates request URL.
*
* @throws DOMException
* @param url URL.
*/
static validateURL(url) {
if (url.username !== '' || url.password !== '') {
throw new DOMException(`${url} is an url with embedded credentials.`, DOMExceptionNameEnum.notSupportedError);
}
}
/**
* Validates request referrer policy.
*
* @throws DOMException
* @param referrerPolicy Referrer policy.
*/
static validateReferrerPolicy(referrerPolicy) {
if (!VALID_REFERRER_POLICIES.includes(referrerPolicy)) {
throw new DOMException(`Invalid referrer policy "${referrerPolicy}".`, DOMExceptionNameEnum.syntaxError);
}
}
/**
* Validates request redirect.
*
* @throws DOMException
* @param redirect Redirect.
*/
static validateRedirect(redirect) {
if (!VALID_REDIRECTS.includes(redirect)) {
throw new DOMException(`Invalid redirect "${redirect}".`, DOMExceptionNameEnum.syntaxError);
}
}
/**
* Validates request redirect.
*
* @throws DOMException
* @param request
* @param redirect Redirect.
*/
static validateSchema(request) {
if (!SUPPORTED_SCHEMAS.includes(request[PropertySymbol.url].protocol)) {
throw new DOMException(`Failed to fetch from "${request.url}": URL scheme "${request[PropertySymbol.url].protocol.replace(/:$/, '')}" is not supported.`, DOMExceptionNameEnum.notSupportedError);
}
}
}
//# sourceMappingURL=FetchRequestValidationUtility.js.map