mirror of
https://github.com/oven-sh/bun
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1c5b318207
Copy over the `isIPv4`/`isIPv6` performance improvements from <https://github.com/nodejs/node/pull/49568>.
61 lines
2.2 KiB
JavaScript
61 lines
2.2 KiB
JavaScript
// 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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// IPv4 Segment
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const v4Seg = "(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])";
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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(s) {
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return IPv4Reg.test(s);
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}
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export function isIPv6(s) {
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return IPv6Reg.test(s);
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}
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export function isIP(s) {
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if (isIPv4(s)) return 4;
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if (isIPv6(s)) return 6;
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return 0;
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}
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export default {
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isIP,
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isIPv4,
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isIPv6,
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};
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