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31 lines
1.1 KiB
TypeScript
31 lines
1.1 KiB
TypeScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.
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import { primordials } from "ext:core/mod.js";
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const { RegExpPrototypeTest, SafeRegExp } = primordials;
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const tokenRegExp = new SafeRegExp(/^[\^_`a-zA-Z\-0-9!#$%&'*+.|~]+$/);
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/**
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* Verifies that the given val is a valid HTTP token
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* per the rules defined in RFC 7230
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* See https://tools.ietf.org/html/rfc7230#section-3.2.6
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*/
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function checkIsHttpToken(val: string) {
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return RegExpPrototypeTest(tokenRegExp, val);
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}
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const headerCharRegex = new SafeRegExp(/[^\t\x20-\x7e\x80-\xff]/);
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/**
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* True if val contains an invalid field-vchar
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* field-value = *( field-content / obs-fold )
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* field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
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* field-vchar = VCHAR / obs-text
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*/
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function checkInvalidHeaderChar(val: string) {
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return RegExpPrototypeTest(headerCharRegex, val);
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}
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export const chunkExpression = new SafeRegExp(/(?:^|\W)chunked(?:$|\W)/i);
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export {
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checkInvalidHeaderChar as _checkInvalidHeaderChar,
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checkIsHttpToken as _checkIsHttpToken,
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};
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