mirror of
https://github.com/affaan-m/ECC.git
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64 lines
2.9 KiB
JavaScript
64 lines
2.9 KiB
JavaScript
'use strict';
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// Hidden grader for keccak-selector. Every vector is independently cross-checked:
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// the implementation is validated against Node's SHA3-256 (same Keccak-f[1600]
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// permutation, different padding suffix) including multi-block and q=1 padding
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// edge inputs. Prints ECC_EVAL_SCORE and always exits 0.
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const fs = require('node:fs');
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const path = require('node:path');
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const checks = [];
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const record = (name, ok) => checks.push({ name, ok: Boolean(ok) });
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const VECTORS = [
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['name()', '0x06fdde03'],
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['symbol()', '0x95d89b41'],
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['decimals()', '0x313ce567'],
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['totalSupply()', '0x18160ddd'],
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['balanceOf(address)', '0x70a08231'],
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['transfer(address,uint256)', '0xa9059cbb'],
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['approve(address,uint256)', '0x095ea7b3'],
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['transferFrom(address,address,uint256)', '0x23b872dd'],
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// 135-byte signature: padding lands on the q=1 edge case.
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['someVeryLongFunctionNameForTestingMultiBlockHashingBehavior(address,uint256,string,bytes32,bool,uint8[],int128,(address,uint256),bytes)', '0x2add16ac'],
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];
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let functionSelector;
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try { ({ functionSelector } = require(path.join(process.cwd(), 'src', 'selector.js'))); } catch { /* scored below */ }
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if (typeof functionSelector === 'function') {
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VECTORS.forEach(([signature, expected], index) => {
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let actual = null;
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try { actual = functionSelector(signature); } catch { /* wrong */ }
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record(`selector-vector-${index + 1}`, actual === expected);
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});
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try { record('output-format', /^0x[0-9a-f]{8}$/.test(functionSelector('name()'))); }
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catch { record('output-format', false); }
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let threw = false;
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try { functionSelector(42); } catch (error) { threw = error instanceof TypeError; }
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record('typeerror-on-non-string', threw);
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} else {
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for (const [,] of VECTORS) checks.push({ name: `selector-vector-${checks.length + 1}`, ok: false });
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record('output-format', false);
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record('typeerror-on-non-string', false);
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}
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// No external code: every import under src/ must be relative or node:-prefixed.
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const sources = [];
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const walk = directory => {
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for (const entry of fs.readdirSync(directory, { withFileTypes: true })) {
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const item = path.join(directory, entry.name);
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if (entry.isDirectory()) walk(item);
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else if (entry.name.endsWith('.js')) sources.push(fs.readFileSync(item, 'utf8'));
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}
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};
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try { walk(path.join(process.cwd(), 'src')); } catch { /* none */ }
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const bareImport = sources.some(source => /require\(\s*['"](?!node:)[a-z@][^'./]*['"]\s*\)/.test(source)
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|| /^\s*import\s/m.test(source) && /from\s*['"](?!node:|\.)[^'"]+['"]/.test(source));
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const pkg = JSON.parse(fs.readFileSync(path.join(process.cwd(), 'package.json'), 'utf8'));
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record('no-external-dependencies', !bareImport && !pkg.dependencies && !pkg.devDependencies);
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const ok = checks.filter(c => c.ok).length;
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for (const c of checks) console.log(`${c.ok ? 'ok' : 'not ok'} - ${c.name}`);
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console.log(`ECC_EVAL_SCORE ${JSON.stringify({ score: ok / checks.length, passed: ok, total: checks.length })}`);
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process.exit(0);
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