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_http_common.ts
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_http_common.ts
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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
const tokenRegExp = /^[\^_`a-zA-Z\-0-9!#$%&'*+.|~]+$/;
/**
* Verifies that the given val is a valid HTTP token
* per the rules defined in RFC 7230
* See https://tools.ietf.org/html/rfc7230#section-3.2.6
*/
function checkIsHttpToken(val: string) {
return tokenRegExp.test(val);
}
const headerCharRegex = /[^\t\x20-\x7e\x80-\xff]/;
/**
* True if val contains an invalid field-vchar
* field-value = *( field-content / obs-fold )
* field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
* field-vchar = VCHAR / obs-text
*/
function checkInvalidHeaderChar(val: string) {
return headerCharRegex.test(val);
}
export const chunkExpression = /(?:^|\W)chunked(?:$|\W)/i;
export {
checkInvalidHeaderChar as _checkInvalidHeaderChar,
checkIsHttpToken as _checkIsHttpToken,
};