128 lines
2.5 KiB
JavaScript
128 lines
2.5 KiB
JavaScript
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/**
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* @param {string} value
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* @returns {RegExp}
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* */
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/**
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* @param {RegExp | string } re
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* @returns {string}
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*/
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function source(re) {
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if (!re) return null;
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if (typeof re === "string") return re;
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return re.source;
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}
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/**
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* @param {...(RegExp | string) } args
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* @returns {string}
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*/
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function concat(...args) {
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const joined = args.map((x) => source(x)).join("");
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return joined;
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}
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/**
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* Any of the passed expresssions may match
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*
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* Creates a huge this | this | that | that match
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* @param {(RegExp | string)[] } args
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* @returns {string}
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*/
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function either(...args) {
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const joined = '(' + args.map((x) => source(x)).join("|") + ")";
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return joined;
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}
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/*
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Language: Apache Access Log
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Author: Oleg Efimov <efimovov@gmail.com>
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Description: Apache/Nginx Access Logs
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Website: https://httpd.apache.org/docs/2.4/logs.html#accesslog
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Audit: 2020
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*/
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/** @type LanguageFn */
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function accesslog(_hljs) {
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// https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods
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const HTTP_VERBS = [
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"GET",
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"POST",
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"HEAD",
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"PUT",
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"DELETE",
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"CONNECT",
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"OPTIONS",
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"PATCH",
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"TRACE"
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];
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return {
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name: 'Apache Access Log',
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contains: [
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// IP
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{
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className: 'number',
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begin: /^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}(:\d{1,5})?\b/,
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relevance: 5
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},
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// Other numbers
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{
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className: 'number',
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begin: /\b\d+\b/,
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relevance: 0
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},
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// Requests
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{
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className: 'string',
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begin: concat(/"/, either(...HTTP_VERBS)),
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end: /"/,
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keywords: HTTP_VERBS,
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illegal: /\n/,
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relevance: 5,
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contains: [
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{
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begin: /HTTP\/[12]\.\d'/,
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relevance: 5
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}
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]
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},
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// Dates
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{
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className: 'string',
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// dates must have a certain length, this prevents matching
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// simple array accesses a[123] and [] and other common patterns
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// found in other languages
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begin: /\[\d[^\]\n]{8,}\]/,
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illegal: /\n/,
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relevance: 1
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},
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{
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className: 'string',
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begin: /\[/,
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end: /\]/,
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illegal: /\n/,
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relevance: 0
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},
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// User agent / relevance boost
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{
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className: 'string',
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begin: /"Mozilla\/\d\.\d \(/,
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end: /"/,
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illegal: /\n/,
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relevance: 3
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},
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// Strings
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{
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className: 'string',
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begin: /"/,
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end: /"/,
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illegal: /\n/,
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relevance: 0
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}
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]
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};
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}
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module.exports = accesslog;
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