fix regex to check format of client signature

Jan Willamowius

2019-04-22 4093b38f678b4d253b610f3439adb9e950e37c92

fix regex to check format of client signature

 src/tools/license-generator/license-generator.cpp

@@ -102,15 +102,14 @@
    string client_signature = "";
    if (vm.count("client_signature")) {
        client_signature = vm["client_signature"].as<string>();
        //fixme match + and /
        /*regex e("(A-Za-z0-9){4}-(A-Za-z0-9){4}-(A-Za-z0-9){4}-(A-Za-z0-9){4}");
         if (!regex_match(client_signature, e)) {
         cerr << endl << "Client signature not recognized: "
         << client_signature
         << " Please enter a valid signature in format XXXX-XXXX-XXXX-XXXX"
         << endl;
         exit(2);
         }*/
        regex e("[A-Za-z0-9\\+/]{4}-[A-Za-z0-9\\+/]{4}-[A-Za-z0-9\\+/]{4}-[A-Za-z0-9\\+/]{4}");
        if (!regex_match(client_signature, e)) {
            cerr << endl << "Client signature not recognized: "
                << client_signature
                << " Please enter a valid signature in format XXXX-XXXX-XXXX-XXXX"
                << endl;
            exit(2);
        }
    }
    string extra_data = "";
    if (vm.count("extra_data")) {