github.com/ubuntu-core/snappy@v0.0.0-20210827154228-9e584df982bb/cmd/snap/keymgr_test.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2021 Canonical Ltd
     5   *
     6   * This program is free software: you can redistribute it and/or modify
     7   * it under the terms of the GNU General Public License version 3 as
     8   * published by the Free Software Foundation.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  package main_test
    21  
    22  import (
    23  	"os"
    24  
    25  	"gopkg.in/check.v1"
    26  
    27  	"github.com/snapcore/snapd/asserts"
    28  	snap "github.com/snapcore/snapd/cmd/snap"
    29  	"github.com/snapcore/snapd/testutil"
    30  )
    31  
    32  type keymgrSuite struct{}
    33  
    34  var _ = check.Suite(&keymgrSuite{})
    35  
    36  func (keymgrSuite) TestGPGKeypairManager(c *check.C) {
    37  	keypairMgr, err := snap.GetKeypairManager()
    38  	c.Check(err, check.IsNil)
    39  	c.Check(keypairMgr, check.FitsTypeOf, &asserts.GPGKeypairManager{})
    40  }
    41  
    42  func mockNopExtKeyMgr(c *check.C) (pgm *testutil.MockCmd, restore func()) {
    43  	os.Setenv("SNAPD_EXT_KEYMGR", "keymgr")
    44  	pgm = testutil.MockCommand(c, "keymgr", `
    45  if [ "$1" == "features" ]; then
    46    echo '{"signing":["RSA-PKCS"] , "public-keys":["DER"]}'
    47    exit 0
    48  fi
    49  exit 1
    50  `)
    51  	r := func() {
    52  		pgm.Restore()
    53  		os.Unsetenv("SNAPD_EXT_KEYMGR")
    54  	}
    55  
    56  	return pgm, r
    57  }
    58  
    59  func (keymgrSuite) TestExternalKeypairManager(c *check.C) {
    60  	pgm, restore := mockNopExtKeyMgr(c)
    61  	defer restore()
    62  
    63  	keypairMgr, err := snap.GetKeypairManager()
    64  	c.Check(err, check.IsNil)
    65  	c.Check(keypairMgr, check.FitsTypeOf, &asserts.ExternalKeypairManager{})
    66  	c.Check(pgm.Calls(), check.HasLen, 1)
    67  }
    68  
    69  func (keymgrSuite) TestExternalKeypairManagerError(c *check.C) {
    70  	os.Setenv("SNAPD_EXT_KEYMGR", "keymgr")
    71  	defer os.Unsetenv("SNAPD_EXT_KEYMGR")
    72  
    73  	pgm := testutil.MockCommand(c, "keymgr", `
    74  exit 1
    75  `)
    76  	defer pgm.Restore()
    77  
    78  	_, err := snap.GetKeypairManager()
    79  	c.Check(err, check.ErrorMatches, `cannot setup external keypair manager: external keypair manager "keymgr" \[features\] failed: exit status 1.*`)
    80  }
    81  
    82  func (keymgrSuite) TestExternalKeypairManagerGenerateKey(c *check.C) {
    83  	_, restore := mockNopExtKeyMgr(c)
    84  	defer restore()
    85  
    86  	keypairMgr, err := snap.GetKeypairManager()
    87  	c.Check(err, check.IsNil)
    88  
    89  	err = snap.GenerateKey(keypairMgr, "key")
    90  	c.Check(err, check.ErrorMatches, `cannot generate external keypair manager key via snap command, use the appropriate external procedure to create a 4096-bit RSA key under the name/label "key"`)
    91  }