SignCmd.java
// SPDX-FileCopyrightText: 2021 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package sop.cli.picocli.commands;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import picocli.CommandLine;
import sop.Ready;
import sop.cli.picocli.Print;
import sop.cli.picocli.SopCLI;
import sop.enums.SignAs;
import sop.exception.SOPGPException;
import sop.operation.Sign;
@CommandLine.Command(name = "sign",
description = "Create a detached signature on the data from standard input",
exitCodeOnInvalidInput = 37)
public class SignCmd implements Runnable {
@CommandLine.Option(names = "--no-armor",
description = "ASCII armor the output",
negatable = true)
boolean armor = true;
@CommandLine.Option(names = "--as", description = "Defaults to 'binary'. If '--as=text' and the input data is not valid UTF-8, sign fails with return code 53.",
paramLabel = "{binary|text}")
SignAs type;
@CommandLine.Parameters(description = "Secret keys used for signing",
paramLabel = "KEY")
List<File> secretKeyFile = new ArrayList<>();
@Override
public void run() {
Sign sign = SopCLI.getSop().sign();
if (type != null) {
try {
sign.mode(type);
} catch (SOPGPException.UnsupportedOption unsupportedOption) {
Print.errln("Unsupported option '--as'");
Print.trace(unsupportedOption);
System.exit(unsupportedOption.getExitCode());
}
}
if (secretKeyFile.isEmpty()) {
Print.errln("Missing required parameter 'KEY'.");
System.exit(19);
}
for (File keyFile : secretKeyFile) {
try (FileInputStream keyIn = new FileInputStream(keyFile)) {
sign.key(keyIn);
} catch (FileNotFoundException e) {
Print.errln("File " + keyFile.getAbsolutePath() + " does not exist.");
Print.trace(e);
System.exit(1);
} catch (IOException e) {
Print.errln("Cannot access file " + keyFile.getAbsolutePath());
Print.trace(e);
System.exit(1);
} catch (SOPGPException.KeyIsProtected e) {
Print.errln("Key " + keyFile.getName() + " is password protected.");
Print.trace(e);
System.exit(1);
} catch (SOPGPException.BadData badData) {
Print.errln("Bad data in key file " + keyFile.getAbsolutePath() + ":");
Print.trace(badData);
System.exit(badData.getExitCode());
}
}
if (!armor) {
sign.noArmor();
}
try {
Ready ready = sign.data(System.in);
ready.writeTo(System.out);
} catch (IOException e) {
Print.errln("IO Error.");
Print.trace(e);
System.exit(1);
} catch (SOPGPException.ExpectedText expectedText) {
Print.errln("Expected text input, but got binary data.");
Print.trace(expectedText);
System.exit(expectedText.getExitCode());
}
}
}