mirror of
https://github.com/SukkaW/Surge.git
synced 2025-12-12 17:20:35 +08:00
343 lines
9.1 KiB
TypeScript
343 lines
9.1 KiB
TypeScript
import { OUTPUT_CLASH_DIR, OUTPUT_SINGBOX_DIR, OUTPUT_SURGE_DIR } from '../../constants/dir';
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import type { Span } from '../../trace';
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import { createTrie } from '../trie';
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import stringify from 'json-stringify-pretty-compact';
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import path from 'node:path';
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import { withBannerArray } from '../misc';
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import { invariant } from 'foxact/invariant';
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import picocolors from 'picocolors';
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import fs from 'node:fs';
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import { fastStringArrayJoin, writeFile } from '../misc';
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import { readFileByLine } from '../fetch-text-by-line';
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import { asyncWriteToStream } from '../async-write-to-stream';
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export abstract class RuleOutput {
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protected domainTrie = createTrie<unknown>(null, true);
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protected domainKeywords = new Set<string>();
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protected domainWildcard = new Set<string>();
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protected userAgent = new Set<string>();
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protected processName = new Set<string>();
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protected processPath = new Set<string>();
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protected urlRegex = new Set<string>();
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protected ipcidr = new Set<string>();
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protected ipcidrNoResolve = new Set<string>();
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protected ipasn = new Set<string>();
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protected ipasnNoResolve = new Set<string>();
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protected ipcidr6 = new Set<string>();
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protected ipcidr6NoResolve = new Set<string>();
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protected geoip = new Set<string>();
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protected groipNoResolve = new Set<string>();
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// TODO: add sourceIpcidr
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// TODO: add sourcePort
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// TODO: add port
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protected otherRules: string[] = [];
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protected abstract type: 'domainset' | 'non_ip' | 'ip';
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protected pendingPromise = Promise.resolve();
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static jsonToLines = (json: unknown): string[] => stringify(json).split('\n');
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static domainWildCardToRegex = (domain: string) => {
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let result = '^';
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for (let i = 0, len = domain.length; i < len; i++) {
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switch (domain[i]) {
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case '.':
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result += String.raw`\.`;
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break;
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case '*':
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result += '[a-zA-Z0-9-_.]*?';
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break;
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case '?':
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result += '[a-zA-Z0-9-_.]';
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break;
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default:
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result += domain[i];
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}
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}
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result += '$';
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return result;
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};
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constructor(
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protected readonly span: Span,
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protected readonly id: string
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) {}
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protected title: string | null = null;
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withTitle(title: string) {
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this.title = title;
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return this;
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}
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protected description: string[] | readonly string[] | null = null;
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withDescription(description: string[] | readonly string[]) {
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this.description = description;
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return this;
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}
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protected date = new Date();
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withDate(date: Date) {
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this.date = date;
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return this;
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}
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protected apexDomainMap: Map<string, string> | null = null;
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protected subDomainMap: Map<string, string> | null = null;
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withDomainMap(apexDomainMap: Map<string, string>, subDomainMap: Map<string, string>) {
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this.apexDomainMap = apexDomainMap;
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this.subDomainMap = subDomainMap;
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return this;
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}
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addDomain(domain: string) {
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this.domainTrie.add(domain);
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return this;
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}
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addDomainSuffix(domain: string) {
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this.domainTrie.add(domain[0] === '.' ? domain : '.' + domain);
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return this;
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}
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bulkAddDomainSuffix(domains: string[]) {
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for (let i = 0, len = domains.length; i < len; i++) {
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this.addDomainSuffix(domains[i]);
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}
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return this;
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}
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addDomainKeyword(keyword: string) {
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this.domainKeywords.add(keyword);
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return this;
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}
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private async addFromDomainsetPromise(source: AsyncIterable<string> | Iterable<string> | string[]) {
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for await (const line of source) {
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if (line[0] === '.') {
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this.addDomainSuffix(line);
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} else {
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this.addDomain(line);
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}
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}
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}
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addFromDomainset(source: AsyncIterable<string> | Iterable<string> | string[]) {
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this.pendingPromise = this.pendingPromise.then(() => this.addFromDomainsetPromise(source));
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return this;
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}
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private async addFromRulesetPromise(source: AsyncIterable<string> | Iterable<string>) {
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for await (const line of source) {
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const splitted = line.split(',');
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const type = splitted[0];
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const value = splitted[1];
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const arg = splitted[2];
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switch (type) {
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case 'DOMAIN':
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this.addDomain(value);
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break;
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case 'DOMAIN-SUFFIX':
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this.addDomainSuffix(value);
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break;
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case 'DOMAIN-KEYWORD':
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this.addDomainKeyword(value);
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break;
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case 'DOMAIN-WILDCARD':
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this.domainWildcard.add(value);
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break;
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case 'USER-AGENT':
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this.userAgent.add(value);
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break;
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case 'PROCESS-NAME':
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if (value.includes('/') || value.includes('\\')) {
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this.processPath.add(value);
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} else {
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this.processName.add(value);
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}
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break;
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case 'URL-REGEX': {
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const [, ...rest] = splitted;
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this.urlRegex.add(rest.join(','));
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break;
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}
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case 'IP-CIDR':
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(arg === 'no-resolve' ? this.ipcidrNoResolve : this.ipcidr).add(value);
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break;
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case 'IP-CIDR6':
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(arg === 'no-resolve' ? this.ipcidr6NoResolve : this.ipcidr6).add(value);
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break;
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case 'IP-ASN':
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(arg === 'no-resolve' ? this.ipasnNoResolve : this.ipasn).add(value);
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break;
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case 'GEOIP':
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(arg === 'no-resolve' ? this.groipNoResolve : this.geoip).add(value);
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break;
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default:
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this.otherRules.push(line);
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break;
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}
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}
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}
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addFromRuleset(source: AsyncIterable<string> | Iterable<string>) {
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this.pendingPromise = this.pendingPromise.then(() => this.addFromRulesetPromise(source));
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return this;
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}
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bulkAddCIDR4(cidr: string[]) {
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for (let i = 0, len = cidr.length; i < len; i++) {
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this.ipcidr.add(cidr[i]);
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}
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return this;
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}
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bulkAddCIDR4NoResolve(cidr: string[]) {
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for (let i = 0, len = cidr.length; i < len; i++) {
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this.ipcidrNoResolve.add(cidr[i]);
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}
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return this;
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}
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bulkAddCIDR6(cidr: string[]) {
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for (let i = 0, len = cidr.length; i < len; i++) {
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this.ipcidr6.add(cidr[i]);
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}
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return this;
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}
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bulkAddCIDR6NoResolve(cidr: string[]) {
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for (let i = 0, len = cidr.length; i < len; i++) {
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this.ipcidr6NoResolve.add(cidr[i]);
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}
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return this;
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}
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abstract surge(): string[];
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abstract clash(): string[];
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abstract singbox(): string[];
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done() {
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return this.pendingPromise;
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}
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async write(): Promise<void> {
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await this.done();
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invariant(this.title, 'Missing title');
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invariant(this.description, 'Missing description');
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await Promise.all([
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compareAndWriteFile(
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this.span,
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withBannerArray(
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this.title,
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this.description,
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this.date,
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this.surge()
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),
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path.join(OUTPUT_SURGE_DIR, this.type, this.id + '.conf')
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),
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compareAndWriteFile(
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this.span,
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withBannerArray(
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this.title,
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this.description,
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this.date,
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this.clash()
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),
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path.join(OUTPUT_CLASH_DIR, this.type, this.id + '.txt')
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),
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compareAndWriteFile(
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this.span,
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this.singbox(),
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path.join(OUTPUT_SINGBOX_DIR, this.type, this.id + '.json')
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)
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]);
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}
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}
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export const fileEqual = async (linesA: string[], source: AsyncIterable<string>): Promise<boolean> => {
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if (linesA.length === 0) {
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return false;
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}
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let index = -1;
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for await (const lineB of source) {
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index++;
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if (index > linesA.length - 1) {
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if (index === linesA.length && lineB === '') {
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return true;
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}
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// The file becomes smaller
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return false;
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}
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const lineA = linesA[index];
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if (lineA[0] === '#' && lineB[0] === '#') {
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continue;
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}
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if (
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lineA[0] === '/'
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&& lineA[1] === '/'
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&& lineB[0] === '/'
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&& lineB[1] === '/'
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&& lineA[3] === '#'
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&& lineB[3] === '#'
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) {
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continue;
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}
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if (lineA !== lineB) {
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return false;
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}
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}
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if (index < linesA.length - 1) {
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// The file becomes larger
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return false;
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}
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return true;
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};
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export async function compareAndWriteFile(span: Span, linesA: string[], filePath: string) {
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let isEqual = true;
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const linesALen = linesA.length;
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if (fs.existsSync(filePath)) {
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isEqual = await fileEqual(linesA, readFileByLine(filePath));
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} else {
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console.log(`${filePath} does not exists, writing...`);
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isEqual = false;
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}
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if (isEqual) {
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console.log(picocolors.gray(picocolors.dim(`same content, bail out writing: ${filePath}`)));
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return;
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}
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await span.traceChildAsync(`writing ${filePath}`, async () => {
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// The default highwater mark is normally 16384,
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// So we make sure direct write to file if the content is
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// most likely less than 500 lines
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if (linesALen < 500) {
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return writeFile(filePath, fastStringArrayJoin(linesA, '\n') + '\n');
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}
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const writeStream = fs.createWriteStream(filePath);
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for (let i = 0; i < linesALen; i++) {
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const p = asyncWriteToStream(writeStream, linesA[i] + '\n');
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// eslint-disable-next-line no-await-in-loop -- stream high water mark
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if (p) await p;
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}
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await asyncWriteToStream(writeStream, '\n');
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writeStream.end();
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});
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}
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