fix(#1387): avoid catastrophic backtracking (#1396)

This commit is contained in:
Sukka 2024-07-14 12:26:02 +08:00 committed by GitHub
parent e14ddbe23c
commit 199a5eed60
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194

View File

@ -1,4 +1,4 @@
import { forwardRef, useImperativeHandle, useState } from "react";
import { forwardRef, useImperativeHandle, useMemo, useState } from "react";
import { useLockFn } from "ahooks";
import { useTranslation } from "react-i18next";
import {
@ -23,16 +23,38 @@ const DEFAULT_PAC = `function FindProxyForURL(url, host) {
return "PROXY 127.0.0.1:%mixed-port%; SOCKS5 127.0.0.1:%mixed-port%; DIRECT;";
}`;
/** NO_PROXY validation */
// *., cdn*., *, etc.
const domain_subdomain_part = String.raw`(?:[a-z0-9\-\*]+\.|\*)*`;
// .*, .cn, .moe, .co*, *
const domain_tld_part = String.raw`(?:\w{2,64}\*?|\*)`;
// *epicgames*, *skk.moe, *.skk.moe, skk.*, sponsor.cdn.skk.moe, *.*, etc.
// also matches 192.168.*, 10.*, 127.0.0.*, etc. (partial ipv4)
const rDomainSimple = domain_subdomain_part + domain_tld_part;
const ipv4_part = String.raw`\d{1,3}`;
// 127.0.0.1 (full ipv4)
const rIPv4 = String.raw`(?:${ipv4_part}\.){3}${ipv4_part}`;
// const rIPv4Partial = String.raw`${ipv4_part}\.(?:(?:${ipv4_part}|\*)\.){0,2}\.\*`;
const ipv6_part = "(?:[a-fA-F0-9:])+";
const rIPv6 = `(?:${ipv6_part}:+)+${ipv6_part}`;
const rLocal = `localhost|<local>|localdomain`;
const rValidPart = `${rDomainSimple}|${rIPv4}|${rIPv6}|${rLocal}`;
const getValidReg = (isWindows: boolean) => {
const separator = isWindows ? ";" : ",";
const rValid = String.raw`^(${rValidPart})(?:${separator}\s?(${rValidPart}))*${separator}?$`;
return new RegExp(rValid);
};
export const SysproxyViewer = forwardRef<DialogRef>((props, ref) => {
const { t } = useTranslation();
let validReg;
if (getSystem() === "windows") {
validReg =
/^((\*\.)?([a-zA-Z0-9-]+\.?)+(local|test|example|invalid|localhost|onion|([a-zA-Z]{2,}))|(\d{1,3}\.){1,3}\d{1,3}|\d{1,3}\.\d{1,3}\.\d{1,3}\.\*|\d{1,3}\.\d{1,3}\.\*|\d{1,3}\.\*|([a-fA-F0-9:]+:+)+[a-fA-F0-9]+|localhost|<local>)(;((\*\.)?([a-zA-Z0-9-]+\.?)+(local|test|example|invalid|localhost|onion|([a-zA-Z]{2,}))|(\d{1,3}\.){1,3}\d{1,3}|\d{1,3}\.\d{1,3}\.\d{1,3}\.\*|\d{1,3}\.\d{1,3}\.\*|\d{1,3}\.\*|([a-fA-F0-9:]+:+)+[a-fA-F0-9]+|localhost|<local>))*;?$/;
} else {
validReg =
/^((\*\.)?([a-zA-Z0-9-]+\.?)+(local|test|example|invalid|localhost|onion|([a-zA-Z]{2,}))|(\d{1,3}\.){1,3}\d{1,3}(\/\d{1,2}|\/3[0-2])?|\d{1,3}\.\d{1,3}\.\d{1,3}\.\*(\/\d{1,2}|\/3[0-2])?|\d{1,3}\.\d{1,3}\.\*(\/\d{1,2}|\/3[0-2])?|\d{1,3}\.\*(\/\d{1,2}|\/3[0-2])?|([a-fA-F0-9:]+:+)+[a-fA-F0-9]+(\/\d{1,3})?|localhost|<local>)(,((\*\.)?([a-zA-Z0-9-]+\.?)+(local|test|example|invalid|localhost|onion|([a-zA-Z]{2,}))|(\d{1,3}\.){1,3}\d{1,3}(\/\d{1,2}|\/3[0-2])?|\d{1,3}\.\d{1,3}\.\d{1,3}\.\*(\/\d{1,2}|\/3[0-2])?|\d{1,3}\.\d{1,3}\.\*(\/\d{1,2}|\/3[0-2])?|\d{1,3}\.\*(\/3[0-2])?|([a-fA-F0-9:]+:+)+[a-fA-F0-9]+(\/\d{1,3})?|localhost|<local>))*,?$/;
}
const isWindows = getSystem() === "windows";
const validReg = useMemo(() => getValidReg(isWindows), [isWindows]);
const [open, setOpen] = useState(false);
const [editorOpen, setEditorOpen] = useState(false);