github.com/anonymouse64/snapd@v0.0.0-20210824153203-04c4c42d842d/interfaces/apparmor/template_vars.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2016 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 apparmor
    21  
    22  import (
    23  	"bytes"
    24  	"fmt"
    25  
    26  	"github.com/snapcore/snapd/interfaces/dbus"
    27  	"github.com/snapcore/snapd/snap"
    28  )
    29  
    30  // templateVariables returns text defining apparmor variables that can be used
    31  // in the apparmor template and by apparmor snippets.
    32  func templateVariables(info *snap.Info, securityTag string, cmdName string) string {
    33  	var buf bytes.Buffer
    34  	fmt.Fprintf(&buf, "# This is a snap name without the instance key\n")
    35  	fmt.Fprintf(&buf, "@{SNAP_NAME}=\"%s\"\n", info.SnapName())
    36  	fmt.Fprintf(&buf, "# This is a snap name with instance key\n")
    37  	fmt.Fprintf(&buf, "@{SNAP_INSTANCE_NAME}=\"%s\"\n", info.InstanceName())
    38  	fmt.Fprintf(&buf, "@{SNAP_INSTANCE_DESKTOP}=\"%s\"\n", info.DesktopPrefix())
    39  	fmt.Fprintf(&buf, "@{SNAP_COMMAND_NAME}=\"%s\"\n", cmdName)
    40  	fmt.Fprintf(&buf, "@{SNAP_REVISION}=\"%s\"\n", info.Revision)
    41  	fmt.Fprintf(&buf, "@{PROFILE_DBUS}=\"%s\"\n",
    42  		dbus.SafePath(securityTag))
    43  	fmt.Fprintf(&buf, "@{INSTALL_DIR}=\"/{,var/lib/snapd/}snap\"")
    44  	return buf.String()
    45  }