Bytecode verifier

verify.js

// Usage: node verify.js file_with_source_code file_with_hex_bytecode compiler_binary...

var fs = require('fs');
var source = fs.readFileSync(process.argv[2]).toString();
var binary = fs.readFileSync(process.argv[3]).toString().replace(/\s+/, '');
if (binary.substring(0, 2) == '0x')
    binary = binary.substring(2);

var matchFound = false;
process.argv.forEach(function(compilerFile, i) {
    if (i < 4) return;
    var compiler = require('./' + compilerFile);
    var version = compiler.cwrap('version', 'string');
    console.log("Checking against compiler version " + version());
    var compile = compiler.cwrap(
        'compileJSON',
        'string',
        ['string', 'number']
    );
    for (var optimized in [0, 1]) {
        var optimizedStr = optimized ? 'optimized ' : 'non-optimized ';
        var compilerOutput = JSON.parse(compile(source, optimized));
        for (var contractName in compilerOutput.contracts) {
            var contract = compilerOutput.contracts[contractName];
            var match = null;
            if (binary == contract.runtimeBytecode)
                match = optimizedStr + 'runtime';
            if (binary == contract.bytecode)
                match = optimizedStr + 'creation time';
            if (match !== null)
            {
                console.log("Bytecode MATCHES the " + match + " bytecode of the contract " + contractName);
                matchFound = true;
            }
        }
    }
});

if (!matchFound)
    console.log("NO match found.");