feat: scripts

scripts/sshkeygen.js

@@ -0,0 +1,31 @@
+#! /usr/bin/env runjs
+
+var KeyPairGenerator = java.security.KeyPairGenerator;
+var Bytes = Packages.me.hatter.tools.commons.bytes.Bytes;
+var UnixArgsUtil = Packages.me.hatter.tools.commons.args.UnixArgsUtil;
+var SSHKeyGen = Packages.me.hatter.tools.commons.security.ssh.SSHKeyGen;
+
+var main = () => {
+  UnixArgsUtil.parseGlobalArgs($ARGS);
+  var args = UnixArgsUtil.ARGS.args();
+  if (UnixArgsUtil.ARGS.flags().containsAny('h', 'help')) {
+    println('sshkeygen.js - Generate SSH keypair.')
+    println();
+    println('sshkeygen.js [--h[elp]] [-keyLength 4096] [-serverName server_name]');
+    return;
+  }
+
+  var kpg = KeyPairGenerator.getInstance("RSA");
+  var keyLen = $$.asInt(UnixArgsUtil.ARGS.kvalue('keyLength') || '2048');
+  if (keyLen < 1024) {
+    println('Key length is less than 1024 bit: ' + keyLen);
+    return;
+  }
+  kpg.initialize(keyLen);
+  var kp = kpg.generateKeyPair();
+
+  println(SSHKeyGen.encodePublicKey(kp.getPublic(), UnixArgsUtil.ARGS.kvalue('serverName') || 'test@example.com'));
+  println(Bytes.from(kp.getPrivate().getEncoded()).asPem('PRIVATE KEY'));
+};
+
+main();