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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
import { primordials } from "ext:core/mod.js";
const {
RegExpPrototypeTest,
SafeRegExp,
Symbol,
} = primordials;
export const CRLF = "\r\n";
export const kIncomingMessage = Symbol("IncomingMessage");
const tokenRegExp = new SafeRegExp(/^[\^_`a-zA-Z\-0-9!#$%&'*+.|~]+$/);
export const methods = [
"ACL",
"BIND",
"CHECKOUT",
"CONNECT",
"COPY",
"DELETE",
"GET",
"HEAD",
"LINK",
"LOCK",
"M-SEARCH",
"MERGE",
"MKACTIVITY",
"MKCALENDAR",
"MKCOL",
"MOVE",
"NOTIFY",
"OPTIONS",
"PATCH",
"POST",
"PROPFIND",
"PROPPATCH",
"PURGE",
"PUT",
"REBIND",
"REPORT",
"SEARCH",
"SOURCE",
"SUBSCRIBE",
"TRACE",
"UNBIND",
"UNLINK",
"UNLOCK",
"UNSUBSCRIBE",
];
/**
* 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 RegExpPrototypeTest(tokenRegExp, val);
}
const headerCharRegex = new SafeRegExp(/[^\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 RegExpPrototypeTest(headerCharRegex, val);
}
export const chunkExpression = new SafeRegExp(/(?:^|\W)chunked(?:$|\W)/i);
export const continueExpression = new SafeRegExp(
/(?:^|\W)100-continue(?:$|\W)/i,
);
export {
checkInvalidHeaderChar as _checkInvalidHeaderChar,
checkIsHttpToken as _checkIsHttpToken,
};
export default {
_checkInvalidHeaderChar: checkInvalidHeaderChar,
_checkIsHttpToken: checkIsHttpToken,
chunkExpression,
CRLF,
continueExpression,
kIncomingMessage,
methods,
};
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