text: /*
   *    Copyright (C) 2020 Sergio Rubio
   *
   *    This program is free software: you can redistribute it and/or modify
   *    it under the terms of the GNU Affero General Public License as published
   *    by the Free Software Foundation, either version 3 of the License, or
   *    (at your option) any later version.
   *
   *    This program is distributed in the hope that it will be useful,
   *    but WITHOUT ANY WARRANTY; without even the implied warranty of
   *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *    GNU Affero General Public License for more details.
   *
   *    You should have received a copy of the GNU Affero General Public License
   *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
   *
   *    Authors:
   *      Sergio Rubio <sergio@rubio.im>
   */
  
  package cfg
  
  import (
  	"io/ioutil"
  	"net/url"
  	"os"
  	"path/filepath"
  	"testing"
  )
  
  const testPassword = "foo"
  
  func TestAESBackendLoad(t *testing.T) {
  	u, _ := url.Parse("crypt://foo@foobar")
  	backend, err := NewAESBackend(u)
  	if err != nil {
  		t.Error("The backend should return an error if no password was specified")
  	}
  
  	_, err = backend.Load(u)
  	if err != nil {
  		t.Errorf("Loading an non-existing config file should not return error: %v", err)
  	}
  
  	// try to load the config from an absolute path using a URI
  	cwd, _ := os.Getwd()
  	u, err = url.Parse("crypto://" + testPassword + "@" + filepath.Join(cwd, "testdata", "beehive-crypto.conf"))
  	if err != nil {
  		t.Fatalf("Can't parse crypto URL: %v", err)
  	}
  
  	backend, err = NewAESBackend(u)
  	if err != nil {
  		t.Fatalf("Can't create AES backend: %v", err)
  	}
  	conf, err := backend.Load(u)
  	if err != nil {
  		t.Errorf("Error loading config file fixture from absolute path %s. %v", u, err)
  	}
  	if conf.Bees[0].Name != "echo" {
  		t.Error("The first bee should be an exec bee named echo")
  	}
  
  	// try to load the config using the password from the environment
  	os.Setenv(PasswordEnvVar, testPassword)
  	u, err = url.Parse("crypto://" + filepath.Join(cwd, "testdata", "beehive-crypto.conf"))
  	if err != nil {
  		t.Fatalf("Can't parse crypto URL: %v", err)
  	}
  
  	backend, err = NewAESBackend(u)
  	if err != nil {
  		t.Fatalf("Can't create AES backend: %v", err)
  	}
  	conf, err = backend.Load(u)
  	if err != nil {
  		t.Errorf("loading the config file using the environment password should work. %v", err)
  	}
  
  	// try to load the config with an invalid password
  	os.Setenv(PasswordEnvVar, "")
  	u, err = url.Parse("crypto://bar@" + filepath.Join(cwd, "testdata", "beehive-crypto.conf"))
  	if err != nil {
  		t.Fatalf("Can't parse crypto URL: %v", err)
  	}
  
  	backend, err = NewAESBackend(u)
  	if err != nil {
  		t.Fatalf("Can't create AES backend: %v", err)
  	}
  	conf, err = backend.Load(u)
  	if err == nil || err.Error() != "cipher: message authentication failed" {
  		t.Errorf("loading the config file with an invalid password should fail. %v", err)
  	}
  
  	// environment password takes prececence
  	os.Setenv(PasswordEnvVar, testPassword)
  	u, err = url.Parse("crypto://bar@" + filepath.Join(cwd, "testdata", "beehive-crypto.conf"))
  	if err != nil {
  		t.Fatalf("Can't parse crypto URL: %v", err)
  	}
  
  	backend, err = NewAESBackend(u)
  	if err != nil {
  		t.Fatalf("Can't create AES backend: %v", err)
  	}
  	conf, err = backend.Load(u)
  	if err != nil {
  		t.Errorf("the password defined in %s should take precedence. %v", PasswordEnvVar, err)
  	}
  
  	u, err = url.Parse("crypto://" + testPassword + "@" + filepath.Join(cwd, "testdata", "beehive.conf"))
  	if err != nil {
  		t.Fatalf("Can't parse crypto URL: %v", err)
  	}
  	conf, err = backend.Load(u)
  	if err == nil || err.Error() != "encrypted configuration header not valid" {
  		t.Errorf("the password defined in %s should take precedence. %v", PasswordEnvVar, err)
  	}
  }
  
  func TestAESBackendSave(t *testing.T) {
  	tmpdir, err := ioutil.TempDir("", "beehivetest")
  	if err != nil {
  		t.Error("Could not create temp directory")
  	}
  
  	cwd, _ := os.Getwd()
  	u, err := url.Parse(filepath.Join("crypto://"+testPassword+"@", cwd, "testdata", "beehive-crypto.conf"))
  	backend, _ := NewAESBackend(u)
  	c, err := backend.Load(u)
  	if err != nil {
  		t.Errorf("Failed to load config fixture from relative path %s: %v", u, err)
  	}
  
  	// Save the config file to a new absolute path using a URL
  	p := filepath.Join(tmpdir, "beehive-crypto.conf")
  	u, err = url.Parse("crypto://" + testPassword + "@" + p)
  	c.SetURL(u.String())
  	backend, _ = NewAESBackend(u)
  	err = backend.Save(c)
  	if err != nil {
  		t.Errorf("cailed to save the config to %s", u)
  	}
  	if !exist(p) {
  		t.Errorf("configuration file wasn't saved to %s", p)
  	}
  
  	ok, err := IsEncrypted(u)
  	if !ok {
  		t.Errorf("encrypted config header not added. %v", err)
  	}
  }
  