Examples with Contract com.icodici.universa.contract.Contract used on opensource projects

Example 41 with Contract

use of com.icodici.universa.contract.Contract in project universa by UniversaBlockchain.

the class CLIMain method checkContract.

/**
 * Check contract for errors. Print errors if found.
 *
 * @param contract - contract to check.
 */
private static void checkContract(Contract contract) {
    // First, check the sealed state
    if (!contract.isOk()) {
        reporter.message("The capsule is not sealed properly:");
        contract.getErrors().forEach(e -> reporter.error(e.getError().toString(), e.getObjectName(), e.getMessage()));
    }
    Yaml yaml = new Yaml();
    if (reporter.isVerboseMode()) {
        report("api level:   " + contract.getApiLevel());
        report("contract id: " + contract.getId().toBase64String());
        report("issued:      " + contract.getIssuedAt());
        report("revision:    " + contract.getRevision());
        report("created:     " + contract.getCreatedAt());
        report("expires:     " + contract.getExpiresAt());
        System.out.println();
        Set<PublicKey> keys = contract.getSealedByKeys();
        contract.getRevoking().forEach(r -> {
            try {
                ClientNetwork n = getClientNetwork();
                System.out.println();
                report("revoking item exists: " + r.getId().toBase64String());
                report("\tstate: " + n.check(r.getId()));
                HashId origin = r.getOrigin();
                boolean m = origin.equals(contract.getOrigin());
                report("\tOrigin: " + origin);
                report("\t" + (m ? "matches main contract origin" : "does not match main contract origin"));
                if (r.canBeRevoked(keys)) {
                    report("\trevocation is allowed");
                } else
                    reporter.error(Errors.BAD_REVOKE.name(), r.getId().toString(), "revocation not allowed");
            } catch (Exception clientError) {
                clientError.printStackTrace();
            }
        });
        contract.getNewItems().forEach(n -> {
            System.out.println();
            report("New item exists:      " + n.getId().toBase64String());
            Contract nc = (Contract) n;
            boolean m = nc.getOrigin().equals(contract.getOrigin());
            report("\tOrigin: " + ((Contract) n).getOrigin());
            report("\t" + (m ? "matches main contract origin" : "does not match main contract origin"));
        });
        if (keys.size() > 0) {
            report("\nSignature contains " + keys.size() + " valid key(s):\n");
            keys.forEach(k -> {
                KeyInfo i = k.info();
                report("\t✔︎ " + i.getAlgorythm() + ":" + i.getKeyLength() * 8 + ":" + i.getBase64Tag());
            });
            report("\nWhich can play roles:\n");
            contract.getRoles().forEach((name, role) -> {
                String canPlay = role.isAllowedForKeys(keys) ? "✔" : "✘";
                report("\t" + canPlay + " " + role.getName());
            });
            report("\nAnd have permissions:\n");
            contract.getPermissions().values().forEach(perm -> {
                String canPlay = perm.isAllowedForKeys(keys) ? "✔" : "✘";
                report("\t" + canPlay + " " + perm.getName());
                Binder x = DefaultBiMapper.serialize(perm.getParams());
                BufferedReader br = new BufferedReader(new StringReader(yaml.dumpAsMap(x)));
                try {
                    for (String line; (line = br.readLine()) != null; ) {
                        report("\t    " + line);
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                }
            });
            reporter.newLine();
        }
    }
    Multimap<String, Permission> permissions = contract.getPermissions();
    Collection<Permission> sjs = permissions.get("split_join");
    if (sjs != null) {
        sjs.forEach(sj -> checkSj(contract, sj));
    }
    try {
        contract.check();
    } catch (Quantiser.QuantiserException e) {
        addError("QUANTIZER_COST_LIMIT", contract.toString(), e.getMessage());
    } catch (Exception e) {
        addError(Errors.FAILURE.name(), contract.toString(), e.getMessage());
    }
    addErrors(contract.getErrors());
    if (contract.getErrors().size() == 0) {
        report("Contract is valid");
    }
}

Example 42 with Contract

use of com.icodici.universa.contract.Contract in project universa by UniversaBlockchain.

the class CLIMain method doRegister.

private static void doRegister() throws IOException {
    List<String> sources = new ArrayList<String>((List) options.valuesOf("register"));
    String tuSource = (String) options.valueOf("tu");
    int tuAmount = (int) options.valueOf("amount");
    boolean tutest = options.has("tutest");
    List<String> nonOptions = new ArrayList<String>((List) options.nonOptionArguments());
    for (String opt : nonOptions) {
        sources.addAll(asList(opt.split(",")));
    }
    cleanNonOptionalArguments(sources);
    for (int s = 0; s < sources.size(); s++) {
        String source = sources.get(s);
        Contract contract = loadContract(source);
        Contract tu = null;
        if (tuSource != null) {
            tu = loadContract(tuSource, true);
            report("load payment revision: " + tu.getState().getRevision() + " id: " + tu.getId());
        }
        Set<PrivateKey> tuKeys = new HashSet<>(keysMap().values());
        if (contract != null) {
            if (tu != null && tuKeys != null && tuKeys.size() > 0) {
                report("registering the paid contract " + contract.getId() + " from " + source + " for " + tuAmount + " TU");
                Parcel parcel = registerContract(contract, tu, tuAmount, tuKeys, tutest, (int) options.valueOf("wait"));
                if (parcel != null) {
                    report("save payment revision: " + parcel.getPaymentContract().getState().getRevision() + " id: " + parcel.getPaymentContract().getId());
                    CopyOption[] copyOptions = new CopyOption[] { StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.COPY_ATTRIBUTES };
                    Files.copy(Paths.get(tuSource), Paths.get(tuSource.replaceAll("(?i)\\.(unicon)$", "_rev" + tu.getRevision() + ".unicon")), copyOptions);
                    saveContract(parcel.getPaymentContract(), tuSource, true, false);
                }
            } else {
                report("registering the contract " + contract.getId().toBase64String() + " from " + source);
                registerContract(contract, (int) options.valueOf("wait"));
            }
        }
    }
    // print cost of processing if asked
    if (options.has("cost")) {
        doCost();
    } else {
        finish();
    }
}

Example 43 with Contract

use of com.icodici.universa.contract.Contract in project universa by UniversaBlockchain.

the class CLIMain method checkBytesIsValidContract.

/**
 * Check bytes is contract. And if bytes is, check contract for errors. Print errors if found.
 *
 * @param data - data to check.
 *
 * @return true if bytes is Contract and Contract is valid.
 */
private static Boolean checkBytesIsValidContract(byte[] data) {
    try {
        Contract contract = new Contract(data);
        if (!contract.isOk()) {
            reporter.message("The capsule is not sealed");
            contract.getErrors().forEach(e -> reporter.error(e.getError().toString(), e.getObjectName(), e.getMessage()));
        }
        checkContract(contract);
    } catch (RuntimeException e) {
        addError(Errors.BAD_VALUE.name(), "byte[] data", e.getMessage());
        return false;
    } catch (Quantiser.QuantiserException e) {
        addError("QUANTIZER_COST_LIMIT", "", e.toString());
    } catch (IOException e) {
        addError(Errors.BAD_VALUE.name(), "byte[] data", e.getMessage());
        return false;
    }
    return true;
}

Example 44 with Contract

use of com.icodici.universa.contract.Contract in project universa by UniversaBlockchain.

the class CLIMain method printWallets.

/**
 * Just print wallets info to console.
 *
 * @param wallets
 */
private static void printWallets(List<Wallet> wallets) {
    reporter.message("");
    List<Contract> foundContracts = new ArrayList<>();
    for (Wallet wallet : wallets) {
        foundContracts.addAll(wallet.getContracts());
        reporter.message("found wallet: " + wallet.toString());
        reporter.verbose("");
        HashMap<String, Integer> balance = new HashMap<String, Integer>();
        Integer numcoins;
        String currency;
        for (Contract contract : wallet.getContracts()) {
            try {
                numcoins = contract.getStateData().getIntOrThrow(AMOUNT_FIELD_NAME);
                currency = contract.getDefinition().getData().getOrThrow("currency_code");
                if (balance.containsKey(currency)) {
                    balance.replace(currency, balance.get(currency) + numcoins);
                } else {
                    balance.put(currency, numcoins);
                }
                reporter.verbose("found coins: " + contract.getDefinition().getData().getOrThrow("name") + " -> " + numcoins + " (" + currency + ") ");
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        reporter.verbose("");
        reporter.message("total in the wallet: ");
        for (String c : balance.keySet()) {
            reporter.message(balance.get(c) + " (" + c + ") ");
        }
    }
}

Example 45 with Contract

use of com.icodici.universa.contract.Contract in project universa by UniversaBlockchain.

the class CLIMain method doRevoke.

private static void doRevoke() throws IOException {
    List<String> sources = new ArrayList<String>((List) options.valuesOf("revoke"));
    String tuSource = (String) options.valueOf("tu");
    int tuAmount = (int) options.valueOf("amount");
    boolean tutest = options.has("tutest");
    List<String> nonOptions = new ArrayList<String>((List) options.nonOptionArguments());
    for (String opt : nonOptions) {
        sources.addAll(asList(opt.split(",")));
    }
    cleanNonOptionalArguments(sources);
    report("doRevoke");
    for (int s = 0; s < sources.size(); s++) {
        String source = sources.get(s);
        Contract contract = loadContract(source);
        report("doRevoke " + contract);
        Contract tu = null;
        if (tuSource != null) {
            tu = loadContract(tuSource, true);
            report("load payment revision: " + tu.getState().getRevision() + " id: " + tu.getId());
        }
        Set<PrivateKey> tuKeys = new HashSet<>(keysMap().values());
        report("tuKeys num: " + tuKeys.size());
        if (contract != null) {
            if (tu != null && tuKeys != null && tuKeys.size() > 0) {
                report("registering the paid contract " + contract.getId() + " from " + source + " for " + tuAmount + " TU");
                Parcel parcel = null;
                try {
                    if (contract.check()) {
                        report("revoke contract from " + source);
                        parcel = revokeContract(contract, tu, tuAmount, tuKeys, tutest, keysMap().values().toArray(new PrivateKey[0]));
                    } else {
                        addErrors(contract.getErrors());
                    }
                } catch (Quantiser.QuantiserException e) {
                    addError("QUANTIZER_COST_LIMIT", contract.toString(), e.getMessage());
                }
                if (parcel != null) {
                    report("save payment revision: " + parcel.getPaymentContract().getState().getRevision() + " id: " + parcel.getPaymentContract().getId());
                    CopyOption[] copyOptions = new CopyOption[] { StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.COPY_ATTRIBUTES };
                    Files.copy(Paths.get(tuSource), Paths.get(tuSource.replaceAll("(?i)\\.(unicon)$", "_rev" + tu.getRevision() + ".unicon")), copyOptions);
                    saveContract(parcel.getPaymentContract(), tuSource, true, false);
                }
            } else {
                try {
                    if (contract.check()) {
                        report("revoke contract from " + source);
                        revokeContract(contract, keysMap().values().toArray(new PrivateKey[0]));
                    } else {
                        addErrors(contract.getErrors());
                    }
                } catch (Quantiser.QuantiserException e) {
                    addError("QUANTIZER_COST_LIMIT", contract.toString(), e.getMessage());
                }
            }
        }
    }
    finish();
}