mirror of
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98 lines
3.2 KiB
TypeScript
98 lines
3.2 KiB
TypeScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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// TODO(petamoriken): enable prefer-primordials for node polyfills
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// deno-lint-ignore-file prefer-primordials
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import { Buffer } from "node:buffer";
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import { uvException } from "ext:deno_node/internal/errors.ts";
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import { writeBuffer } from "ext:deno_node/internal_binding/node_file.ts";
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// IPv4 Segment
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const v4Seg = "(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])";
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const v4Str = `(${v4Seg}[.]){3}${v4Seg}`;
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const IPv4Reg = new RegExp(`^${v4Str}$`);
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// IPv6 Segment
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const v6Seg = "(?:[0-9a-fA-F]{1,4})";
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const IPv6Reg = new RegExp(
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"^(" +
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`(?:${v6Seg}:){7}(?:${v6Seg}|:)|` +
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`(?:${v6Seg}:){6}(?:${v4Str}|:${v6Seg}|:)|` +
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`(?:${v6Seg}:){5}(?::${v4Str}|(:${v6Seg}){1,2}|:)|` +
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`(?:${v6Seg}:){4}(?:(:${v6Seg}){0,1}:${v4Str}|(:${v6Seg}){1,3}|:)|` +
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`(?:${v6Seg}:){3}(?:(:${v6Seg}){0,2}:${v4Str}|(:${v6Seg}){1,4}|:)|` +
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`(?:${v6Seg}:){2}(?:(:${v6Seg}){0,3}:${v4Str}|(:${v6Seg}){1,5}|:)|` +
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`(?:${v6Seg}:){1}(?:(:${v6Seg}){0,4}:${v4Str}|(:${v6Seg}){1,6}|:)|` +
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`(?::((?::${v6Seg}){0,5}:${v4Str}|(?::${v6Seg}){1,7}|:))` +
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")(%[0-9a-zA-Z-.:]{1,})?$",
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);
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export function isIPv4(ip: string) {
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return RegExp.prototype.test.call(IPv4Reg, ip);
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}
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export function isIPv6(ip: string) {
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return RegExp.prototype.test.call(IPv6Reg, ip);
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}
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export function isIP(ip: string) {
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if (isIPv4(ip)) {
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return 4;
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}
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if (isIPv6(ip)) {
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return 6;
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}
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return 0;
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}
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export function makeSyncWrite(fd: number) {
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return function (
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// deno-lint-ignore no-explicit-any
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this: any,
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// deno-lint-ignore no-explicit-any
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chunk: any,
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enc: string,
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cb: (err?: Error) => void,
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) {
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if (enc !== "buffer") {
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chunk = Buffer.from(chunk, enc);
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}
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this._handle.bytesWritten += chunk.length;
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const ctx: { errno?: number } = {};
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writeBuffer(fd, chunk, 0, chunk.length, null, ctx);
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if (ctx.errno !== undefined) {
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const ex = uvException(ctx);
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ex.errno = ctx.errno;
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return cb(ex);
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}
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cb();
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};
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}
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export const normalizedArgsSymbol = Symbol("normalizedArgs");
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