lapo.it
1#!/usr/bin/env node
2
3import { promises as fs } from 'node:fs';
4import { ASN1 } from './asn1.js';
5import { Base64 } from './base64.js';
6import { Defs } from './defs.js';
7
8const tot = [];
9for await (const file of await fs.opendir('examples')) {
10 let content = await fs.readFile('examples/' + file.name);
11 try {
12 try { // try PEM first
13 content = Base64.unarmor(content);
14 } catch (ignore) { // try DER/BER then
15 }
16 let result = ASN1.decode(content);
17 content = null;
18 const types = Defs.commonTypes
19 .map(type => {
20 const stats = Defs.match(result, type);
21 return { type, match: stats.recognized / stats.total };
22 })
23 .sort((a, b) => b.match - a.match);
24 tot.push([ types[0].match, file.name, types[0].type.description ]);
25 } catch (e) {
26 tot.push([ 0, file.name, e.message ]);
27 }
28}
29for (const f of tot)
30 console.log(f[0].toFixed(3) + '\t' + f[1] + '\t' + f[2]);
31const avg = tot.map(f => f[0]).reduce((sum, val) => sum + val) / tot.length;
32console.log('\x1B[1m\x1B[32m' + (avg * 100).toFixed(3) + '\x1B[39m\x1B[22m%\tAVERAGE');