mecano/lib/krb5_ktadd.js

Common functions for system deployment.

// Generated by CoffeeScript 1.9.1
var misc, string;

module.exports = function(options, callback) {
  var do_chown, do_end, do_get, do_ktadd, do_ktremove, status;
  if (!options.principal) {
    return callback(new Error('Property principal is required'));
  }
  if (!options.keytab) {
    return callback(new Error('Property keytab is required'));
  }
  if (/^\S+@\S+$/.test(options.kadmin_principal)) {
    if (options.realm == null) {
      options.realm = options.kadmin_principal.split('@')[1];
    }
  } else {
    if (!options.realm) {
      throw Error('Property "realm" is required unless present in principal');
    }
    options.principal = options.principal + "@" + options.realm;
  }
  status = false;
  do_get = (function(_this) {
    return function() {
      if (!options.keytab) {
        return do_end();
      }
      return _this.execute({
        cmd: "export TZ=GMT; klist -kt " + options.keytab,
        code_skipped: 1,
        shy: true
      }, function(err, exists, stdout, stderr) {
        var _, i, keytab, kvno, len, line, match, mdate, principal, ref;
        if (err) {
          return callback(err);
        }
        if (!exists) {
          if (typeof options.log === "function") {
            options.log('Mecano `krb5_ktadd`: keytab does not yet exists');
          }
          return do_ktadd();
        }
        keytab = {};
        ref = string.lines(stdout);
        for (i = 0, len = ref.length; i < len; i++) {
          line = ref[i];
          if (match = /^\s*(\d+)\s+([\d\/:]+\s+[\d\/:]+)\s+(.*)\s*$/.exec(line)) {
            _ = match[0], kvno = match[1], mdate = match[2], principal = match[3];
            kvno = parseInt(kvno, 10);
            mdate = Date.parse(mdate + " GMT");
            if (!keytab[principal] || keytab[principal].kvno < kvno) {
              keytab[principal] = {
                kvno: kvno,
                mdate: mdate
              };
            }
          }
        }
        if (keytab[options.principal] == null) {
          if (typeof options.log === "function") {
            options.log('Mecano `krb5_ktadd`: Principal is not listed inside the keytab');
          }
          return do_ktadd();
        }
        return this.execute({
          cmd: misc.kadmin(options, "getprinc -terse " + options.principal),
          shy: true
        }, function(err, exists, stdout, stderr) {
          var ref1, ref2, ref3, values;
          if (err) {
            return err;
          }
          values = string.lines(stdout)[1];
          if (!values) {
            return callback(Error("Principal does not exist: '" + options.principal + "'"));
          }
          values = values.split('\t');
          mdate = parseInt(values[2], 10) * 1000;
          kvno = parseInt(values[8], 10);
          if (typeof options.log === "function") {
            options.log("Mecano `krb5_ktadd`: keytab kvno '" + ((ref1 = keytab[principal]) != null ? ref1.kvno : void 0) + "', principal kvno '" + kvno + "'");
          }
          if (typeof options.log === "function") {
            options.log("Mecano `krb5_ktadd`: keytab mdate '" + (new Date((ref2 = keytab[principal]) != null ? ref2.mdate : void 0)) + "', principal mdate '" + (new Date(mdate)) + "'");
          }
          if (((ref3 = keytab[principal]) != null ? ref3.kvno : void 0) === kvno && keytab[principal].mdate === mdate) {
            if (typeof options.log === "function") {
              options.log('Mecano `krb5_ktadd`: kvno and mdate are ok, continue with changing the keytab');
            }
            return do_chown();
          }
          return do_ktremove();
        });
      });
    };
  })(this);
  do_ktremove = (function(_this) {
    return function() {
      return _this.execute({
        cmd: misc.kadmin(options, "ktremove -k " + options.keytab + " " + options.principal)
      }, function(err, exists, stdout, stderr) {
        if (err) {
          return callback(err);
        }
        return do_ktadd();
      });
    };
  })(this);
  do_ktadd = (function(_this) {
    return function() {
      return _this.execute({
        cmd: misc.kadmin(options, "ktadd -k " + options.keytab + " " + options.principal)
      }, function(err, ktadded) {
        if (err) {
          return callback(err);
        }
        status = true;
        return do_chown();
      });
    };
  })(this);
  do_chown = (function(_this) {
    return function() {
      return _this.chown({
        destination: options.keytab,
        uid: options.uid,
        gid: options.gid,
        "if": (options.uid != null) || (options.gid != null)
      }).chmod({
        destination: options.keytab,
        mode: options.mode,
        "if": options.mode != null
      }).then(function(err, changed) {
        if (err) {
          return callback(err);
        }
        if (changed) {
          status = changed;
        }
        return do_end();
      });
    };
  })(this);
  do_end = (function(_this) {
    return function() {
      return callback(null, status);
    };
  })(this);
  return do_get();
};

misc = require('./misc');

string = require('./misc/string');