Give the remaining tray applets their modules, each with one start
openrazer (the official driver, daemon and library), polychromatic (the AUR tray, kept as found; its i3 line moves out of the i3 module into its own node-display-session contribution), forticlient (the AUR VPN client: its service declared, its configuration never read) and nm-applet (the desktop half of NetworkManager, apart from the server-side module). The openrazer daemon fails on both workstations because the account is not in the openrazer group; openrazer_check names it and the README carries the one-off step, since the account's user resource is zsh's. desktop.go learns to tell a program from another sharing its 15-character command name, so polychromatic's tools never count or end themselves, and a copies test holds the six carriers to one text.
This commit is contained in:
jochen
@@ -0,0 +1,94 @@
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# forticlient
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The FortiClient VPN client on the workstations, as a module (novox/hq ADR 0208): its tray in the
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operator's session and the vendor's service behind it. It requires `x11-display`, so it is assigned
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only where a display server is held on the same machine.
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**This is the operator's work VPN.** Nothing of its configuration is the mesh's: no profile, no
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credential, no gateway, no certificate is declared, read, printed or stored by the module or its
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tools. The tools report running and connected state only.
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## Owns
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| what | where |
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|---|---|
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| the vendor's scheduler service, which holds the tunnel | `forticlient.service`, running and enabled |
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Nothing else. It holds no seat, makes no contribution and writes no file.
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- **The client is kept as found.** `forticlient-vpn` (7.4.3) is not in the official repositories: on
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both workstations it is a foreign (AUR) package that repackages the vendor's build, installed
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explicitly. The host installs from the official repositories only, so the module cannot declare it.
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ADR 0205's pinned archive does not fit: it is a vendor binary set with a root service, a firewall
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helper and an install script. It waits for the mesh's package repository (research 027 question 1,
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option P2). Until then a fresh workstation installs it by hand.
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- **The service is declared, and so depended on.** `forticlient.service` is the package's unit, running
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and enabled on both workstations. Declared running and enabled, it is held in that state, and on a
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machine without the package the host refuses it by name (*does not exist on this machine*): loud,
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never a silent pass. The `asus-zephyrus-g14` module does the same with its foreign daemons. The
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module never restarts it: a change to nothing of the module's would, and nothing of the module's
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changes.
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- **The configuration stays the operator's, and unread.** `/etc/forticlient/`, the client's database
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under `/opt/forticlient/`, the account's FortiClient settings, the VPN profiles, saved credentials
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and certificates are set in the client's own window. They are found (ADR 0182), and unlike any other
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found file, the tools do not even read them.
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## How it starts: the vendor's autostart entry, and nothing else
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The tray has two processes: `fortitraylauncher`, which starts and watches `fortitray`. The package's
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install script links `/etc/xdg/autostart/Fortitray.desktop` to the package's
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`/opt/forticlient/Fortitray.desktop` (`Exec=/opt/forticlient/fortitraylauncher`). The session runs it
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once at login through the `i3` module's `dex --autostart --environment i3`. **That entry is the tray's
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one start.** The module adds no `xinitrc` slot and no `node-display-session` exec, because either would
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start it a second time. The link is the vendor's, made by its install script; the mesh does not make
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or remove it.
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The tunnel is not the tray's: the service's processes hold it, as root. Ending the tray leaves a
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connected tunnel connected.
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## Tools
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They are served by the node's runtime as the operator account (ADR 0175).
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| tool | does |
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|---|---|
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| `forticlient_status` (r) | <ul><li>the installed version, and that it is from outside the official repositories</li><li>the service: active, enabled</li><li>whether the launcher and the tray run: pid, since, and the scope or unit they run in</li><li>what starts the tray at login</li><li>connected or not, as the number of the client's tunnel interfaces that are up</li></ul> |
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| `forticlient_restart` (a) | asks the tray and its launcher to end (SIGTERM), forces them after 5 s, and starts the launcher in the operator's session as a transient user unit `mesh-forticlient-tray`, so it outlives the tools runtime. The launcher starts the tray. The service and the tunnel are not touched. Refused plainly when nobody is logged in to the desktop |
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| `forticlient_check` (r) | <ul><li>the package is installed</li><li>the service is running and enabled</li><li>exactly one start: the vendor's entry is present and not hidden by an entry of the account, and `dex` is installed</li><li>no window-manager exec</li><li>one launcher and one tray run in a desktop session</li></ul>Being connected is never a finding: that is the operator's to decide. Each finding says what to do |
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**What the tools never touch**, held by the tests (a fake machine carries a profile, a gateway, an
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address, a secret and a certificate where the client keeps them, and no answer may hold any of them):
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- no file under `/etc/forticlient` or the account's FortiClient settings is opened, and under
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`/opt/forticlient` only the tray's autostart entry, through its link (it names the launcher and
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nothing else);
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- the vendor's command-line client and `fortivpn` are never run, and its logs are never read;
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- a process is named by its command name only, never by its arguments;
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- *connected* is whether an interface named `fctvpn…` is up, from its flags. The interface's name
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(it carries an identifier) and its addresses are never answered. A tunnel of a kind that brings up
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no such interface (IPsec) is not seen, and the answer says *not connected*.
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## What changes when it is assigned
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| | laptop | desktop |
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|---|---|---|
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| package | none: `forticlient-vpn` 7.4.3.5411, explicit, foreign | the same |
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| service | none: running and enabled | the same |
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| tray | none: dex starts it from the vendor's entry, in the login session's scope | none on disk. **No tray runs now:** that session began before `dex` was installed, and the predecessor's window manager never started it. The next login is the first that starts it |
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## Migration (ADR 0182)
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Nothing is required on either machine. On the desktop, log out and in once, or run
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`forticlient_restart`, and the tray runs from its one start. `forticlient_check` then answers `ok`.
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## Leaves as found
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Everything of the client's: its configuration and database, the VPN profiles and credentials, its
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logs, `/etc/xdg/autostart/Fortitray.desktop` (the vendor's link), the package itself.
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## Relies on
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- **The package, installed by hand.** Without it the host refuses the service by name.
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- **`i3`'s `dex` line for the start**: XDG autostart has no seat. Assigned without `i3`, the tray does
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not start. `forticlient_check` says so.
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- A display server on the same machine (`x11-display`, ADR 0208 §3).
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@@ -0,0 +1,37 @@
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package main
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// The desktop applications whose bundles carry desktop.go. Each builds alone, so each has its own copy;
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// this test, itself one of the copied files, holds them to one text wherever the siblings are present.
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import (
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"bytes"
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"os"
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"path/filepath"
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"testing"
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)
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var carriers = []string{"blueman", "forticlient", "nextcloud-client", "nm-applet", "openrazer", "polychromatic", "slack"}
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func TestEveryDesktopApplicationCarriesTheSameCopy(t *testing.T) {
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compared := 0
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for _, module := range carriers {
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dir := filepath.Join("..", "..", "..", module, "cmd", module+"-tools")
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if _, err := os.Stat(dir); err != nil {
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continue
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}
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for _, f := range []string{"desktop.go", "desktop_test.go", "copies_test.go"} {
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mine, err := os.ReadFile(f)
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if err != nil {
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t.Fatal(err)
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}
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theirs, err := os.ReadFile(filepath.Join(dir, f))
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if err != nil || !bytes.Equal(mine, theirs) {
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t.Errorf("%s's copy of %s differs from this one: change every copy together", module, f)
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}
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}
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compared++
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}
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||||
if compared == 0 {
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t.Log("no sibling copies beside this module")
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}
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||||
}
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||||
@@ -0,0 +1,601 @@
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||||
package main
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||||
|
||||
// desktop.go is the same file in every desktop application's bundle (copies_test.go names them and
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||||
// holds them to one text): a tray application of the operator's graphical session, seen from the
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// node's tool runtime (novox/hq ADR 0208).
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//
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||||
// The runtime is a system service running as the operator account (ADR 0175): it has the account's
|
||||
// uid and none of the session's environment. A tool that starts something on the desktop finds the
|
||||
// session from a process of the account that carries DISPLAY (the window manager first), and starts
|
||||
// the program under the account's own service manager with `systemd-run --user`, never as its own
|
||||
// child: the runtime's unit is a cgroup that is emptied whenever the runtime restarts.
|
||||
//
|
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// Everything a tool touches goes through a Machine: its filesystem root, its commands (a Runner) and
|
||||
// its signals are injected, so the tests run against a fake /proc and a fake home.
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||||
//
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||||
// Bounds: one command gets at most CallTimeout (below the runtime's 30 s call limit) and is ended
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||||
// with everything it started when it takes longer; each stream is kept to MostOutput; a file is read
|
||||
// to at most MostRead.
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"bytes"
|
||||
"context"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"os"
|
||||
"os/exec"
|
||||
"path/filepath"
|
||||
"sort"
|
||||
"strconv"
|
||||
"strings"
|
||||
"syscall"
|
||||
"time"
|
||||
)
|
||||
|
||||
// Bounds every command and read is held to.
|
||||
const (
|
||||
CallTimeout = 10 * time.Second
|
||||
MostOutput = 256 << 10
|
||||
MostRead = 16 << 20
|
||||
)
|
||||
|
||||
// Output is what a command did.
|
||||
type Output struct {
|
||||
Stdout string
|
||||
Stderr string
|
||||
Code int
|
||||
// Err is why it did not run to an answer: not installed, ended on its timeout, or the spawn error.
|
||||
Err error
|
||||
Cut bool
|
||||
}
|
||||
|
||||
// ErrNotInstalled and ErrTimedOut are what a Runner answers in Output.Err.
|
||||
var (
|
||||
ErrNotInstalled = errors.New("not installed")
|
||||
ErrTimedOut = errors.New("timed out")
|
||||
// ErrNoSession is answered by a tool that needs the desktop when nobody is logged in to it.
|
||||
ErrNoSession = errors.New("no graphical session")
|
||||
)
|
||||
|
||||
// Runner runs one command with extra environment, within the context's deadline. Tests replace it.
|
||||
type Runner func(ctx context.Context, env []string, name string, args ...string) Output
|
||||
|
||||
// Machine is what the tools read and act on.
|
||||
type Machine struct {
|
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Root string // "" on the machine; a fake root in tests
|
||||
Home string // the operator's home, as the machine names it
|
||||
UID int
|
||||
Run Runner
|
||||
Kill func(pid int, sig syscall.Signal) error
|
||||
Sleep func(time.Duration)
|
||||
Now func() time.Time
|
||||
Timeout time.Duration
|
||||
}
|
||||
|
||||
// NewMachine is the machine the bundle runs on.
|
||||
func NewMachine() *Machine {
|
||||
return &Machine{Home: operatorHome(), UID: os.Getuid(), Run: execRun, Kill: syscall.Kill,
|
||||
Sleep: time.Sleep, Now: time.Now, Timeout: CallTimeout}
|
||||
}
|
||||
|
||||
// operatorHome is the account's home: what the runtime was told, else the process's own.
|
||||
func operatorHome() string {
|
||||
if h := strings.TrimSpace(os.Getenv("MESH_OPERATOR_HOME")); h != "" {
|
||||
return h
|
||||
}
|
||||
h, _ := os.UserHomeDir()
|
||||
return h
|
||||
}
|
||||
|
||||
func (m *Machine) path(p string) string { return filepath.Join(m.Root, p) }
|
||||
|
||||
// home is a path under the operator's home, on this machine's filesystem.
|
||||
func (m *Machine) home(rel ...string) string {
|
||||
return filepath.Join(append([]string{m.Root, m.Home}, rel...)...)
|
||||
}
|
||||
|
||||
// tilde shows a path under the home as ~/…, so an answer does not carry the account's name.
|
||||
func (m *Machine) tilde(p string) string {
|
||||
if m.Home != "" && m.Home != "/" {
|
||||
h := strings.TrimSuffix(m.Home, "/")
|
||||
if p == h {
|
||||
return "~"
|
||||
}
|
||||
if strings.HasPrefix(p, h+"/") {
|
||||
return "~/" + strings.TrimPrefix(p, h+"/")
|
||||
}
|
||||
}
|
||||
return p
|
||||
}
|
||||
|
||||
// cmd runs a command within the machine's timeout (or a shorter one).
|
||||
func (m *Machine) cmd(timeout time.Duration, env []string, name string, args ...string) Output {
|
||||
if timeout <= 0 || timeout > m.Timeout {
|
||||
timeout = m.Timeout
|
||||
}
|
||||
ctx, cancel := context.WithTimeout(context.Background(), timeout)
|
||||
defer cancel()
|
||||
return m.Run(ctx, env, name, args...)
|
||||
}
|
||||
|
||||
// failed names how a command failed, or answers nil when it ran and exited 0.
|
||||
func failed(o Output, name string, args ...string) error {
|
||||
switch {
|
||||
case errors.Is(o.Err, ErrNotInstalled):
|
||||
return fmt.Errorf("%s is not installed on this machine", name)
|
||||
case errors.Is(o.Err, ErrTimedOut):
|
||||
return fmt.Errorf("%s gave no answer in time and was ended", name)
|
||||
case o.Err != nil:
|
||||
return fmt.Errorf("%s did not run: %v", name, o.Err)
|
||||
case o.Code != 0:
|
||||
said := strings.TrimSpace(o.Stderr)
|
||||
if said == "" {
|
||||
said = strings.TrimSpace(o.Stdout)
|
||||
}
|
||||
if said == "" {
|
||||
said = "and said nothing"
|
||||
}
|
||||
return fmt.Errorf("%s %s exited %d: %s", name, strings.Join(args, " "), o.Code, tail(said, 1000))
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func tail(s string, n int) string {
|
||||
if len(s) <= n {
|
||||
return s
|
||||
}
|
||||
return "…" + s[len(s)-n:]
|
||||
}
|
||||
|
||||
type capped struct {
|
||||
b bytes.Buffer
|
||||
cut bool
|
||||
}
|
||||
|
||||
func (c *capped) Write(p []byte) (int, error) {
|
||||
if room := MostOutput - c.b.Len(); room < len(p) {
|
||||
if room > 0 {
|
||||
c.b.Write(p[:room])
|
||||
}
|
||||
c.cut = true
|
||||
return len(p), nil
|
||||
}
|
||||
return c.b.Write(p)
|
||||
}
|
||||
|
||||
func execRun(ctx context.Context, env []string, name string, args ...string) Output {
|
||||
path, err := exec.LookPath(name)
|
||||
if err != nil {
|
||||
return Output{Code: 127, Err: ErrNotInstalled}
|
||||
}
|
||||
cmd := exec.CommandContext(ctx, path, args...)
|
||||
cmd.Env = append(append(os.Environ(), "LC_ALL=C"), env...)
|
||||
// Its own process group, so that ending it on a timeout ends what it started too.
|
||||
cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
|
||||
cmd.Cancel = func() error {
|
||||
if cmd.Process != nil {
|
||||
_ = syscall.Kill(-cmd.Process.Pid, syscall.SIGKILL)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
cmd.WaitDelay = 2 * time.Second
|
||||
var out, errs capped
|
||||
cmd.Stdout, cmd.Stderr = &out, &errs
|
||||
err = cmd.Run()
|
||||
o := Output{Stdout: out.b.String(), Stderr: errs.b.String(), Cut: out.cut || errs.cut}
|
||||
var exit *exec.ExitError
|
||||
switch {
|
||||
case err == nil:
|
||||
case ctx.Err() == context.DeadlineExceeded:
|
||||
o.Code, o.Err = 124, ErrTimedOut
|
||||
case errors.As(err, &exit):
|
||||
o.Code = exit.ExitCode()
|
||||
default:
|
||||
o.Code, o.Err = 127, err
|
||||
}
|
||||
return o
|
||||
}
|
||||
|
||||
// readBounded reads a file to at most MostRead bytes.
|
||||
func readBounded(path string) ([]byte, error) {
|
||||
f, err := os.Open(path)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer f.Close()
|
||||
return io.ReadAll(io.LimitReader(f, MostRead))
|
||||
}
|
||||
|
||||
// Proc is one process of the account.
|
||||
type Proc struct {
|
||||
PID int `json:"pid"`
|
||||
Command string `json:"command"`
|
||||
// StartedIn is the unit or scope it runs in: the login session's scope when the session's start
|
||||
// (dex, the window manager) started it, a mesh-… unit when a tool restarted it.
|
||||
StartedIn string `json:"started_in,omitempty"`
|
||||
Since string `json:"since,omitempty"`
|
||||
}
|
||||
|
||||
// procs are this account's processes named comm, oldest first.
|
||||
func (m *Machine) procs(comm string) []Proc {
|
||||
entries, err := os.ReadDir(m.path("/proc"))
|
||||
if err != nil {
|
||||
return nil
|
||||
}
|
||||
boot := m.bootTime()
|
||||
var out []Proc
|
||||
for _, e := range entries {
|
||||
pid, err := strconv.Atoi(e.Name())
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
dir := m.path(filepath.Join("/proc", e.Name()))
|
||||
if readTrimmed(filepath.Join(dir, "comm")) != comm || m.uidOf(dir) != m.UID {
|
||||
continue
|
||||
}
|
||||
p := Proc{PID: pid, Command: strings.TrimSpace(strings.ReplaceAll(readTrimmed(filepath.Join(dir, "cmdline")), "\x00", " "))}
|
||||
if p.Command == "" {
|
||||
p.Command = comm
|
||||
}
|
||||
if cg := readTrimmed(filepath.Join(dir, "cgroup")); cg != "" {
|
||||
line := strings.Split(cg, "\n")[0]
|
||||
p.StartedIn = filepath.Base(line[strings.LastIndexByte(line, ':')+1:])
|
||||
}
|
||||
if t, ok := startOf(readTrimmed(filepath.Join(dir, "stat")), boot); ok {
|
||||
p.Since = t.UTC().Format(time.RFC3339)
|
||||
}
|
||||
out = append(out, p)
|
||||
}
|
||||
sort.Slice(out, func(i, j int) bool { return out[i].PID < out[j].PID })
|
||||
return out
|
||||
}
|
||||
|
||||
// procsOf are the account's processes named comm whose program is word. The kernel keeps 15
|
||||
// characters of a command name, so a longer name can share them with another program's: this bundle's
|
||||
// own binary among them (polychromatic-tools and polychromatic-tray-applet are both polychromatic-t).
|
||||
// The program is the first word of the command line, or the second for a script run by its
|
||||
// interpreter. An empty word keeps every process named comm.
|
||||
func (m *Machine) procsOf(comm, word string) []Proc {
|
||||
var out []Proc
|
||||
for _, p := range m.procs(comm) {
|
||||
f := strings.Fields(p.Command)
|
||||
if word == "" || (len(f) > 0 && filepath.Base(f[0]) == word) || (len(f) > 1 && filepath.Base(f[1]) == word) {
|
||||
out = append(out, p)
|
||||
}
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// uidOf is the real uid on a process's status, -1 when unreadable.
|
||||
func (m *Machine) uidOf(dir string) int {
|
||||
for _, l := range strings.Split(readTrimmed(filepath.Join(dir, "status")), "\n") {
|
||||
if f := strings.Fields(l); len(f) > 1 && f[0] == "Uid:" {
|
||||
if n, err := strconv.Atoi(f[1]); err == nil {
|
||||
return n
|
||||
}
|
||||
}
|
||||
}
|
||||
return -1
|
||||
}
|
||||
|
||||
func (m *Machine) bootTime() int64 {
|
||||
for _, l := range strings.Split(readTrimmed(m.path("/proc/stat")), "\n") {
|
||||
if f := strings.Fields(l); len(f) == 2 && f[0] == "btime" {
|
||||
n, _ := strconv.ParseInt(f[1], 10, 64)
|
||||
return n
|
||||
}
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
// startOf reads a process's start from its stat line (field 22, in clock ticks of 1/100 s since boot).
|
||||
func startOf(stat string, boot int64) (time.Time, bool) {
|
||||
i := strings.LastIndexByte(stat, ')')
|
||||
if i < 0 || boot == 0 {
|
||||
return time.Time{}, false
|
||||
}
|
||||
f := strings.Fields(stat[i+1:])
|
||||
if len(f) < 20 {
|
||||
return time.Time{}, false
|
||||
}
|
||||
ticks, err := strconv.ParseInt(f[19], 10, 64)
|
||||
if err != nil {
|
||||
return time.Time{}, false
|
||||
}
|
||||
return time.Unix(boot+ticks/100, 0), true
|
||||
}
|
||||
|
||||
func readTrimmed(path string) string {
|
||||
b, err := os.ReadFile(path)
|
||||
if err != nil {
|
||||
return ""
|
||||
}
|
||||
return strings.TrimSpace(string(b))
|
||||
}
|
||||
|
||||
func exists(path string) bool {
|
||||
_, err := os.Stat(path)
|
||||
return err == nil
|
||||
}
|
||||
|
||||
// Session is what a tool needs to start something on the operator's desktop.
|
||||
type Session struct {
|
||||
Display string `json:"display"`
|
||||
XAuthority string `json:"xauthority,omitempty"`
|
||||
Bus string `json:"bus,omitempty"`
|
||||
RuntimeDir string `json:"runtime_dir,omitempty"`
|
||||
From string `json:"found_in"`
|
||||
}
|
||||
|
||||
// sessionHolders are the processes whose environment is the session's, best first.
|
||||
var sessionHolders = []string{"i3", "sway", "i3bar", "picom", "dunst", "xterm"}
|
||||
|
||||
// session finds the account's graphical session, or ErrNoSession saying what it looked at.
|
||||
func (m *Machine) session() (Session, error) {
|
||||
entries, _ := os.ReadDir(m.path("/proc"))
|
||||
best, bestRank := -1, len(sessionHolders)+1
|
||||
var env map[string]string
|
||||
var from string
|
||||
for _, e := range entries {
|
||||
pid, err := strconv.Atoi(e.Name())
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
dir := m.path(filepath.Join("/proc", e.Name()))
|
||||
if m.uidOf(dir) != m.UID {
|
||||
continue
|
||||
}
|
||||
raw, err := os.ReadFile(filepath.Join(dir, "environ"))
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
vars := parseEnviron(raw)
|
||||
if vars["DISPLAY"] == "" {
|
||||
continue
|
||||
}
|
||||
comm := readTrimmed(filepath.Join(dir, "comm"))
|
||||
rank := len(sessionHolders)
|
||||
for i, h := range sessionHolders {
|
||||
if h == comm {
|
||||
rank = i
|
||||
}
|
||||
}
|
||||
if rank < bestRank || (rank == bestRank && pid > best) {
|
||||
best, bestRank, env, from = pid, rank, vars, fmt.Sprintf("process %s (pid %d)", comm, pid)
|
||||
}
|
||||
}
|
||||
if env == nil {
|
||||
return Session{}, fmt.Errorf("%w for uid %d on this machine: no process of the account carries DISPLAY. "+
|
||||
"Is anyone logged in to the desktop?", ErrNoSession, m.UID)
|
||||
}
|
||||
s := Session{Display: env["DISPLAY"], XAuthority: env["XAUTHORITY"], Bus: env["DBUS_SESSION_BUS_ADDRESS"],
|
||||
RuntimeDir: env["XDG_RUNTIME_DIR"], From: from}
|
||||
if s.RuntimeDir == "" {
|
||||
s.RuntimeDir = fmt.Sprintf("/run/user/%d", m.UID)
|
||||
}
|
||||
if s.Bus == "" && exists(m.path(filepath.Join(s.RuntimeDir, "bus"))) {
|
||||
s.Bus = "unix:path=" + filepath.Join(s.RuntimeDir, "bus")
|
||||
}
|
||||
return s, nil
|
||||
}
|
||||
|
||||
// bus is the account's session bus environment, which a logged-in account has with or without a
|
||||
// desktop: what a command needs to reach the user's service manager or a bus name.
|
||||
func (m *Machine) bus() []string {
|
||||
runtime := fmt.Sprintf("/run/user/%d", m.UID)
|
||||
return []string{"XDG_RUNTIME_DIR=" + runtime, "DBUS_SESSION_BUS_ADDRESS=unix:path=" + runtime + "/bus"}
|
||||
}
|
||||
|
||||
// Env is the session's variables, for a command that draws or speaks to the desktop.
|
||||
func (s Session) Env() []string {
|
||||
var env []string
|
||||
for _, kv := range [][2]string{{"DISPLAY", s.Display}, {"XAUTHORITY", s.XAuthority},
|
||||
{"DBUS_SESSION_BUS_ADDRESS", s.Bus}, {"XDG_RUNTIME_DIR", s.RuntimeDir}} {
|
||||
if kv[1] != "" {
|
||||
env = append(env, kv[0]+"="+kv[1])
|
||||
}
|
||||
}
|
||||
return env
|
||||
}
|
||||
|
||||
func parseEnviron(raw []byte) map[string]string {
|
||||
env := map[string]string{}
|
||||
for _, kv := range bytes.Split(raw, []byte{0}) {
|
||||
if i := bytes.IndexByte(kv, '='); i > 0 {
|
||||
env[string(kv[:i])] = string(kv[i+1:])
|
||||
}
|
||||
}
|
||||
return env
|
||||
}
|
||||
|
||||
// detach starts a long-lived program under the account's service manager, as a transient unit that
|
||||
// carries the session's display. A unit left by an earlier start under the same name is stopped
|
||||
// first, so the fixed name means at most one.
|
||||
func (m *Machine) detach(s Session, unit string, argv ...string) error {
|
||||
_ = m.cmd(5*time.Second, s.Env(), "systemctl", "--user", "stop", unit+".service")
|
||||
call := []string{"--user", "--collect", "--quiet", "--unit=" + unit}
|
||||
for _, kv := range [][2]string{{"DISPLAY", s.Display}, {"XAUTHORITY", s.XAuthority}} {
|
||||
if kv[1] != "" {
|
||||
call = append(call, "--setenv="+kv[0]+"="+kv[1])
|
||||
}
|
||||
}
|
||||
call = append(append(call, "--"), argv...)
|
||||
return failed(m.cmd(8*time.Second, s.Env(), "systemd-run", call...), "systemd-run", call...)
|
||||
}
|
||||
|
||||
// stop ends every process of the account named in comms: SIGTERM, then SIGKILL for what is still
|
||||
// there after grace. It answers the pids that ended and those that had to be killed.
|
||||
func (m *Machine) stop(grace time.Duration, comms ...string) (ended, killed []int) {
|
||||
var ps []Proc
|
||||
for _, c := range comms {
|
||||
ps = append(ps, m.procs(c)...)
|
||||
}
|
||||
return m.stopProcs(grace, ps)
|
||||
}
|
||||
|
||||
// stopProcs ends the processes given, as stop does.
|
||||
func (m *Machine) stopProcs(grace time.Duration, ps []Proc) (ended, killed []int) {
|
||||
var pids []int
|
||||
for _, p := range ps {
|
||||
if m.Kill(p.PID, syscall.SIGTERM) == nil {
|
||||
pids = append(pids, p.PID)
|
||||
}
|
||||
}
|
||||
alive := func() []int {
|
||||
var left []int
|
||||
for _, pid := range pids {
|
||||
if exists(m.path(filepath.Join("/proc", strconv.Itoa(pid)))) {
|
||||
left = append(left, pid)
|
||||
}
|
||||
}
|
||||
return left
|
||||
}
|
||||
step := 200 * time.Millisecond
|
||||
for waited := time.Duration(0); waited < grace && len(alive()) > 0; waited += step {
|
||||
m.Sleep(step)
|
||||
}
|
||||
left := alive()
|
||||
for _, pid := range left {
|
||||
if m.Kill(pid, syscall.SIGKILL) == nil {
|
||||
killed = append(killed, pid)
|
||||
}
|
||||
}
|
||||
gone := map[int]bool{}
|
||||
for _, pid := range left {
|
||||
gone[pid] = true
|
||||
}
|
||||
for _, pid := range pids {
|
||||
if !gone[pid] {
|
||||
ended = append(ended, pid)
|
||||
}
|
||||
}
|
||||
return ended, killed
|
||||
}
|
||||
|
||||
// waitFor waits up to d for a process of the account named comm, and answers what it found.
|
||||
func (m *Machine) waitFor(comm string, d time.Duration) []Proc { return m.waitForOf(comm, "", d) }
|
||||
|
||||
// waitForOf waits up to d for a process of the account named comm whose program is word (procsOf).
|
||||
func (m *Machine) waitForOf(comm, word string, d time.Duration) []Proc {
|
||||
step := 250 * time.Millisecond
|
||||
for waited := time.Duration(0); ; waited += step {
|
||||
if p := m.procsOf(comm, word); len(p) > 0 || waited >= d {
|
||||
return p
|
||||
}
|
||||
m.Sleep(step)
|
||||
}
|
||||
}
|
||||
|
||||
// desktopEntry reads the [Desktop Entry] group of an XDG desktop file; nil when there is none.
|
||||
func desktopEntry(path string) map[string]string {
|
||||
raw, err := readBounded(path)
|
||||
if err != nil {
|
||||
return nil
|
||||
}
|
||||
out := map[string]string{}
|
||||
in := false
|
||||
s := bufio.NewScanner(bytes.NewReader(raw))
|
||||
for s.Scan() {
|
||||
l := strings.TrimSpace(s.Text())
|
||||
switch {
|
||||
case strings.HasPrefix(l, "["):
|
||||
in = l == "[Desktop Entry]"
|
||||
case in && l != "" && !strings.HasPrefix(l, "#"):
|
||||
if i := strings.IndexByte(l, '='); i > 0 {
|
||||
out[strings.TrimSpace(l[:i])] = strings.TrimSpace(l[i+1:])
|
||||
}
|
||||
}
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// Autostart is what XDG autostart does with one entry: the account's file overrides the system's
|
||||
// of the same name, and Hidden=true (or the GNOME switch off) means it is not started.
|
||||
type Autostart struct {
|
||||
Entry string `json:"entry"`
|
||||
From string `json:"from"`
|
||||
Exec string `json:"exec,omitempty"`
|
||||
Starts bool `json:"starts"`
|
||||
Because string `json:"because,omitempty"`
|
||||
}
|
||||
|
||||
// autostart resolves one XDG autostart entry by its file name, the account's directory first.
|
||||
func (m *Machine) autostart(name string) Autostart {
|
||||
a := Autostart{Entry: name}
|
||||
user := m.home(".config", "autostart", name)
|
||||
system := m.path(filepath.Join("/etc/xdg/autostart", name))
|
||||
var e map[string]string
|
||||
switch {
|
||||
case exists(user):
|
||||
e, a.From = desktopEntry(user), m.tilde(filepath.Join(m.Home, ".config/autostart", name))
|
||||
case exists(system):
|
||||
e, a.From = desktopEntry(system), filepath.Join("/etc/xdg/autostart", name)
|
||||
default:
|
||||
a.Because = "no such entry in ~/.config/autostart or /etc/xdg/autostart"
|
||||
return a
|
||||
}
|
||||
a.Exec = e["Exec"]
|
||||
switch {
|
||||
case strings.EqualFold(e["Hidden"], "true"):
|
||||
a.Because = "Hidden=true"
|
||||
case strings.EqualFold(e["X-GNOME-Autostart-enabled"], "false"):
|
||||
a.Because = "X-GNOME-Autostart-enabled=false"
|
||||
case a.Exec == "":
|
||||
a.Because = "the entry has no Exec"
|
||||
default:
|
||||
a.Starts = true
|
||||
}
|
||||
return a
|
||||
}
|
||||
|
||||
// i3Starts are the window manager's start-up lines (exec, exec_always) that run a program named
|
||||
// word, in the configuration and its config.d: a second start beside an autostart entry.
|
||||
func (m *Machine) i3Starts(word string) []string {
|
||||
files := []string{m.home(".config", "i3", "config")}
|
||||
more, _ := filepath.Glob(m.home(".config", "i3", "config.d", "*.conf"))
|
||||
files = append(files, more...)
|
||||
var out []string
|
||||
for _, f := range files {
|
||||
raw, err := readBounded(f)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
for n, l := range strings.Split(string(raw), "\n") {
|
||||
t := strings.TrimSpace(l)
|
||||
if !strings.HasPrefix(t, "exec ") && !strings.HasPrefix(t, "exec_always ") {
|
||||
continue
|
||||
}
|
||||
for _, w := range strings.Fields(t)[1:] {
|
||||
if filepath.Base(strings.Trim(w, `"'`)) == word {
|
||||
out = append(out, fmt.Sprintf("%s:%d: %s", m.tilde(strings.TrimPrefix(f, m.Root)), n+1, t))
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// installed asks the package manager for one package's version; "" when it is not installed.
|
||||
func (m *Machine) installed(pkg string) (string, error) {
|
||||
o := m.cmd(0, nil, "pacman", "-Q", pkg)
|
||||
if o.Err != nil {
|
||||
return "", failed(o, "pacman", "-Q", pkg)
|
||||
}
|
||||
if o.Code != 0 {
|
||||
return "", nil
|
||||
}
|
||||
f := strings.Fields(o.Stdout)
|
||||
if len(f) < 2 {
|
||||
return "", fmt.Errorf("pacman -Q %s answered %q", pkg, o.Stdout)
|
||||
}
|
||||
return f[1], nil
|
||||
}
|
||||
|
||||
// Finding is one thing a check found wrong, and what to do about it.
|
||||
type Finding struct {
|
||||
What string `json:"what"`
|
||||
Do string `json:"do,omitempty"`
|
||||
}
|
||||
@@ -0,0 +1,219 @@
|
||||
package main
|
||||
|
||||
// The fake machine the tests run against, and the tests of desktop.go. The same in every desktop
|
||||
// application's bundle (copies_test.go).
|
||||
|
||||
import (
|
||||
"context"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
"syscall"
|
||||
"testing"
|
||||
"time"
|
||||
)
|
||||
|
||||
const testHome = "/home/operator"
|
||||
|
||||
// fake is a machine with a fake root, a scripted Runner and signals that end fake processes.
|
||||
type fake struct {
|
||||
*Machine
|
||||
t *testing.T
|
||||
mu sync.Mutex
|
||||
calls []string
|
||||
answer func(name string, args []string) Output
|
||||
// onStart is run when systemd-run starts something, to let a fake process appear.
|
||||
onStart func(argv []string)
|
||||
// stubborn pids ignore SIGTERM.
|
||||
stubborn map[int]bool
|
||||
signals []string
|
||||
}
|
||||
|
||||
func newFake(t *testing.T) *fake {
|
||||
t.Helper()
|
||||
root := t.TempDir()
|
||||
f := &fake{t: t, stubborn: map[int]bool{}}
|
||||
f.Machine = &Machine{Root: root, Home: testHome, UID: 1000, Timeout: CallTimeout,
|
||||
Sleep: func(time.Duration) {}, Now: func() time.Time { return time.Unix(1_800_000_000, 0) }}
|
||||
f.Run = func(_ context.Context, env []string, name string, args ...string) Output {
|
||||
f.mu.Lock()
|
||||
f.calls = append(f.calls, strings.TrimSpace(name+" "+strings.Join(args, " ")))
|
||||
f.mu.Unlock()
|
||||
if name == "systemd-run" && f.onStart != nil {
|
||||
for i, a := range args {
|
||||
if a == "--" {
|
||||
f.onStart(args[i+1:])
|
||||
}
|
||||
}
|
||||
}
|
||||
if f.answer != nil {
|
||||
return f.answer(name, args)
|
||||
}
|
||||
return Output{}
|
||||
}
|
||||
f.Kill = func(pid int, sig syscall.Signal) error {
|
||||
f.signals = append(f.signals, strconv.Itoa(pid)+":"+sig.String())
|
||||
if sig == syscall.SIGKILL || !f.stubborn[pid] {
|
||||
return os.RemoveAll(filepath.Join(root, "proc", strconv.Itoa(pid)))
|
||||
}
|
||||
return nil
|
||||
}
|
||||
f.write("/proc/stat", "cpu 1 2 3\nbtime 1799990000\n")
|
||||
return f
|
||||
}
|
||||
|
||||
func (f *fake) write(path, content string) {
|
||||
f.t.Helper()
|
||||
p := filepath.Join(f.Root, path)
|
||||
if err := os.MkdirAll(filepath.Dir(p), 0o755); err != nil {
|
||||
f.t.Fatal(err)
|
||||
}
|
||||
if err := os.WriteFile(p, []byte(content), 0o644); err != nil {
|
||||
f.t.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
||||
// proc adds a process of uid with a command name, argv, cgroup and environment.
|
||||
func (f *fake) proc(pid, uid int, comm string, argv []string, cgroup string, env ...string) {
|
||||
d := "/proc/" + strconv.Itoa(pid) + "/"
|
||||
f.write(d+"comm", comm+"\n")
|
||||
f.write(d+"status", "Name:\t"+comm+"\nUid:\t"+strconv.Itoa(uid)+"\t"+strconv.Itoa(uid)+"\t"+strconv.Itoa(uid)+"\t"+strconv.Itoa(uid)+"\n")
|
||||
f.write(d+"cmdline", strings.Join(argv, "\x00")+"\x00")
|
||||
f.write(d+"cgroup", "0::/user.slice/user-"+strconv.Itoa(uid)+".slice/"+cgroup+"\n")
|
||||
f.write(d+"environ", strings.Join(env, "\x00")+"\x00")
|
||||
// starttime (field 22) is 1000 ticks: 10 s after boot.
|
||||
f.write(d+"stat", strconv.Itoa(pid)+" ("+comm+") S 1 1 1 0 -1 0 0 0 0 0 0 0 0 0 20 0 1 0 1000 0 0\n")
|
||||
}
|
||||
|
||||
func (f *fake) desktopSession() {
|
||||
f.proc(3700, 1000, "i3", []string{"i3"}, "session-c1.scope", "DISPLAY=:1", "XAUTHORITY="+testHome+"/.Xauthority")
|
||||
f.write("/run/user/1000/bus", "")
|
||||
}
|
||||
|
||||
func (f *fake) called(prefix string) bool {
|
||||
for _, c := range f.calls {
|
||||
if strings.HasPrefix(c, prefix) {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func TestProcessesAreTheAccountsOwnWithWhereAndWhenTheyStarted(t *testing.T) {
|
||||
f := newFake(t)
|
||||
f.proc(10, 1000, "worker", []string{"/usr/bin/worker", "--background"}, "session-c1.scope")
|
||||
f.proc(11, 1001, "worker", []string{"/usr/bin/worker"}, "session-c2.scope")
|
||||
f.proc(12, 1000, "other", []string{"other"}, "x.scope")
|
||||
got := f.procs("worker")
|
||||
if len(got) != 1 || got[0].PID != 10 || got[0].Command != "/usr/bin/worker --background" ||
|
||||
got[0].StartedIn != "session-c1.scope" || got[0].Since != time.Unix(1799990010, 0).UTC().Format(time.RFC3339) {
|
||||
t.Fatalf("%+v", got)
|
||||
}
|
||||
}
|
||||
|
||||
func TestAProgramIsToldFromAnotherSharingItsCutName(t *testing.T) {
|
||||
f := newFake(t)
|
||||
f.proc(10, 1000, "polychromatic-t", []string{"/usr/bin/python", "/usr/bin/polychromatic-tray-applet"}, "s.scope")
|
||||
f.proc(11, 1000, "polychromatic-t", []string{"polychromatic-tray-applet"}, "s.scope")
|
||||
f.proc(12, 1000, "polychromatic-t", []string{"/usr/lib/mesh/polychromatic-tools"}, "s.scope")
|
||||
if got := f.procsOf("polychromatic-t", "polychromatic-tray-applet"); len(got) != 2 || got[0].PID != 10 || got[1].PID != 11 {
|
||||
t.Fatalf("%+v", got)
|
||||
}
|
||||
if got := f.procsOf("polychromatic-t", ""); len(got) != 3 {
|
||||
t.Fatalf("%+v", got)
|
||||
}
|
||||
ended, _ := f.stopProcs(time.Second, f.procsOf("polychromatic-t", "polychromatic-tray-applet"))
|
||||
if len(ended) != 2 || len(f.procs("polychromatic-t")) != 1 {
|
||||
t.Fatalf("ended %v; the tools' own process must stay", ended)
|
||||
}
|
||||
}
|
||||
|
||||
func TestTheSessionIsTheWindowManagersAndNoneIsSaidPlainly(t *testing.T) {
|
||||
f := newFake(t)
|
||||
if _, err := f.session(); err == nil || !strings.Contains(err.Error(), "no graphical session") {
|
||||
t.Fatalf("%v", err)
|
||||
}
|
||||
f.proc(50, 1000, "xterm", []string{"xterm"}, "s.scope", "DISPLAY=:9")
|
||||
f.desktopSession()
|
||||
f.proc(60, 1001, "i3", []string{"i3"}, "s.scope", "DISPLAY=:5")
|
||||
s, err := f.session()
|
||||
if err != nil || s.Display != ":1" || s.XAuthority != testHome+"/.Xauthority" || s.Bus != "unix:path=/run/user/1000/bus" ||
|
||||
!strings.Contains(s.From, "i3") {
|
||||
t.Fatalf("%+v %v", s, err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestStopAsksThenForcesAndDetachStartsUnderTheServiceManager(t *testing.T) {
|
||||
f := newFake(t)
|
||||
f.desktopSession()
|
||||
f.proc(20, 1000, "app", []string{"app"}, "s.scope")
|
||||
f.proc(21, 1000, "app", []string{"app"}, "s.scope")
|
||||
f.stubborn[21] = true
|
||||
ended, killed := f.stop(time.Second, "app")
|
||||
if len(ended) != 1 || ended[0] != 20 || len(killed) != 1 || killed[0] != 21 {
|
||||
t.Fatalf("ended %v killed %v (%v)", ended, killed, f.signals)
|
||||
}
|
||||
s, _ := f.session()
|
||||
if err := f.detach(s, "mesh-app", "/usr/bin/app", "--background"); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
want := "systemd-run --user --collect --quiet --unit=mesh-app --setenv=DISPLAY=:1 --setenv=XAUTHORITY=" + testHome +
|
||||
"/.Xauthority -- /usr/bin/app --background"
|
||||
if !f.called("systemctl --user stop mesh-app.service") || !f.called(want) {
|
||||
t.Fatalf("%q", f.calls)
|
||||
}
|
||||
}
|
||||
|
||||
func TestAnAutostartEntryOfTheAccountOverridesTheSystemsAndHiddenStartsNothing(t *testing.T) {
|
||||
f := newFake(t)
|
||||
if a := f.autostart("x.desktop"); a.Starts || a.Because == "" {
|
||||
t.Fatalf("%+v", a)
|
||||
}
|
||||
f.write("/etc/xdg/autostart/x.desktop", "[Desktop Entry]\nExec=x-applet\n[Desktop Action y]\nExec=other\n")
|
||||
if a := f.autostart("x.desktop"); !a.Starts || a.Exec != "x-applet" || a.From != "/etc/xdg/autostart/x.desktop" {
|
||||
t.Fatalf("%+v", a)
|
||||
}
|
||||
f.write(testHome+"/.config/autostart/x.desktop", "[Desktop Entry]\nExec=x-applet\nHidden=true\n")
|
||||
if a := f.autostart("x.desktop"); a.Starts || a.Because != "Hidden=true" || a.From != "~/.config/autostart/x.desktop" {
|
||||
t.Fatalf("%+v", a)
|
||||
}
|
||||
}
|
||||
|
||||
func TestAWindowManagerStartIsFoundInTheConfigurationAndItsDropIns(t *testing.T) {
|
||||
f := newFake(t)
|
||||
f.write(testHome+"/.config/i3/config", "exec --no-startup-id dex --autostart --environment i3\n# exec app\nbindsym $mod+a exec app\n")
|
||||
f.write(testHome+"/.config/i3/config.d/50-x.conf", "exec_always --no-startup-id /usr/bin/app --flag\n")
|
||||
got := f.i3Starts("app")
|
||||
if len(got) != 1 || got[0] != "~/.config/i3/config.d/50-x.conf:1: exec_always --no-startup-id /usr/bin/app --flag" {
|
||||
t.Fatalf("%q", got)
|
||||
}
|
||||
}
|
||||
|
||||
func TestACommandThatFailsIsNamed(t *testing.T) {
|
||||
if err := failed(Output{Code: 127, Err: ErrNotInstalled}, "dex"); err == nil || !strings.Contains(err.Error(), "dex is not installed") {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if err := failed(Output{Code: 1, Stderr: "nope"}, "pacman", "-Q", "x"); err == nil || !strings.Contains(err.Error(), "pacman -Q x exited 1: nope") {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if err := failed(Output{}, "true"); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestTheRealRunnerBoundsTimeAndOutput(t *testing.T) {
|
||||
ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
|
||||
defer cancel()
|
||||
if o := execRun(ctx, nil, "sleep", "5"); o.Err != ErrTimedOut {
|
||||
t.Fatalf("%+v", o)
|
||||
}
|
||||
if o := execRun(context.Background(), nil, "no-such-program-here"); o.Err != ErrNotInstalled {
|
||||
t.Fatalf("%+v", o)
|
||||
}
|
||||
o := execRun(context.Background(), nil, "head", "-c", strconv.Itoa(MostOutput+10), "/dev/zero")
|
||||
if !o.Cut || len(o.Stdout) != MostOutput {
|
||||
t.Fatalf("cut %v, %d bytes", o.Cut, len(o.Stdout))
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,205 @@
|
||||
package main
|
||||
|
||||
// FortiClient as the tools see it: the vendor's scheduler service, the tray and the launcher that
|
||||
// starts it, the tray's XDG autostart entry, and whether a tunnel is up. This is the operator's work
|
||||
// VPN, so the tools never read its profiles, its credentials, its gateways or its certificates: no file
|
||||
// under /etc/forticlient or the account's FortiClient settings is opened, and under /opt/forticlient
|
||||
// only the tray's autostart entry (through its link in /etc/xdg/autostart); the vendor's command-line
|
||||
// client is never run, its logs are never read, a process is named by its command name only (never its
|
||||
// arguments), and a tunnel is counted, never named or addressed.
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
const (
|
||||
launcherComm = "fortitraylaunch" // the kernel keeps 15 characters of fortitraylauncher
|
||||
launcherWord = "fortitraylauncher"
|
||||
trayComm = "fortitray"
|
||||
launcherBin = "/opt/forticlient/fortitraylauncher"
|
||||
entryName = "Fortitray.desktop"
|
||||
restartAs = "mesh-forticlient-tray"
|
||||
packageFor = "forticlient-vpn"
|
||||
serviceUnit = "forticlient.service"
|
||||
// tunnelPrefix starts the name of the interface the client brings up for a connected tunnel.
|
||||
tunnelPrefix = "fctvpn"
|
||||
)
|
||||
|
||||
// named keeps a process's command name and drops its arguments.
|
||||
func named(ps []Proc, comm string) []Proc {
|
||||
out := []Proc{}
|
||||
for _, p := range ps {
|
||||
p.Command = comm
|
||||
out = append(out, p)
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// Tunnel is whether the client holds a tunnel up: how many of its tunnel interfaces exist and are up.
|
||||
// Their names and addresses are never answered.
|
||||
type Tunnel struct {
|
||||
Connected bool `json:"connected"`
|
||||
Up int `json:"tunnels_up"`
|
||||
}
|
||||
|
||||
func (m *Machine) tunnel() Tunnel {
|
||||
t := Tunnel{}
|
||||
entries, _ := os.ReadDir(m.path("/sys/class/net"))
|
||||
for _, e := range entries {
|
||||
if !strings.HasPrefix(e.Name(), tunnelPrefix) {
|
||||
continue
|
||||
}
|
||||
flags, err := strconv.ParseUint(strings.TrimPrefix(readTrimmed(m.path(filepath.Join("/sys/class/net", e.Name(), "flags"))), "0x"), 16, 32)
|
||||
if err == nil && flags&1 == 1 { // IFF_UP
|
||||
t.Up++
|
||||
}
|
||||
}
|
||||
t.Connected = t.Up > 0
|
||||
return t
|
||||
}
|
||||
|
||||
// Service is the vendor's scheduler, which holds the tunnel.
|
||||
type Service struct {
|
||||
Active string `json:"active"`
|
||||
Enabled string `json:"enabled"`
|
||||
}
|
||||
|
||||
func (m *Machine) service() Service {
|
||||
word := func(verb string) string {
|
||||
o := m.cmd(5*time.Second, nil, "systemctl", verb, serviceUnit)
|
||||
if f := strings.Fields(o.Stdout); o.Err == nil && len(f) > 0 {
|
||||
return f[0]
|
||||
}
|
||||
return "unknown"
|
||||
}
|
||||
return Service{Active: word("is-active"), Enabled: word("is-enabled")}
|
||||
}
|
||||
|
||||
// foreign says whether the package came from outside the official repositories (pacman -Qm).
|
||||
func (m *Machine) foreign() bool {
|
||||
o := m.cmd(0, nil, "pacman", "-Qqm", packageFor)
|
||||
return o.Err == nil && o.Code == 0 && strings.TrimSpace(o.Stdout) == packageFor
|
||||
}
|
||||
|
||||
// StatusAnswer is what forticlient_status answers.
|
||||
type StatusAnswer struct {
|
||||
Installed string `json:"installed,omitempty"`
|
||||
Foreign bool `json:"outside_official_repositories"`
|
||||
Service Service `json:"service"`
|
||||
Launcher []Proc `json:"launcher"`
|
||||
Tray []Proc `json:"tray"`
|
||||
StartedBy Autostart `json:"started_by"`
|
||||
Tunnel Tunnel `json:"tunnel"`
|
||||
}
|
||||
|
||||
// Status reads the client's running state, and nothing of its configuration.
|
||||
func (m *Machine) Status() (StatusAnswer, error) {
|
||||
s := StatusAnswer{Service: m.service(), Launcher: named(m.procs(launcherComm), launcherWord),
|
||||
Tray: named(m.procs(trayComm), trayComm), StartedBy: m.autostart(entryName), Tunnel: m.tunnel()}
|
||||
v, err := m.installed(packageFor)
|
||||
if err != nil {
|
||||
return s, err
|
||||
}
|
||||
s.Installed = v
|
||||
if v != "" {
|
||||
s.Foreign = m.foreign()
|
||||
}
|
||||
return s, nil
|
||||
}
|
||||
|
||||
// RestartAnswer is what forticlient_restart answers.
|
||||
type RestartAnswer struct {
|
||||
Ended []int `json:"ended"`
|
||||
Killed []int `json:"killed,omitempty"`
|
||||
Running []Proc `json:"running"`
|
||||
Session Session `json:"session"`
|
||||
Unit string `json:"unit"`
|
||||
// Tunnel is after the restart: the tray is only the client's face, the service holds the tunnel.
|
||||
Tunnel Tunnel `json:"tunnel"`
|
||||
}
|
||||
|
||||
// Restart ends the tray and its launcher and starts the launcher again in the operator's session,
|
||||
// under the account's service manager. The launcher starts the tray. The tunnel is the service's,
|
||||
// and is not touched.
|
||||
func (m *Machine) Restart() (RestartAnswer, error) {
|
||||
s, err := m.session()
|
||||
if err != nil {
|
||||
return RestartAnswer{}, err
|
||||
}
|
||||
a := RestartAnswer{Session: s, Unit: restartAs + ".service"}
|
||||
a.Ended, a.Killed = m.stop(5*time.Second, launcherComm, trayComm)
|
||||
if err := m.detach(s, restartAs, launcherBin); err != nil {
|
||||
return a, err
|
||||
}
|
||||
a.Running = named(m.waitFor(launcherComm, 4*time.Second), launcherWord)
|
||||
a.Tunnel = m.tunnel()
|
||||
if len(a.Running) == 0 {
|
||||
return a, fmt.Errorf("the launcher was started as %s but no %s process appeared within 4 s",
|
||||
a.Unit, launcherWord)
|
||||
}
|
||||
return a, nil
|
||||
}
|
||||
|
||||
// CheckAnswer is what forticlient_check answers. Being connected or not is never a finding: that is
|
||||
// the operator's choice, and forticlient_status says which.
|
||||
type CheckAnswer struct {
|
||||
OK bool `json:"ok"`
|
||||
Findings []Finding `json:"findings"`
|
||||
Starts []string `json:"starts"`
|
||||
}
|
||||
|
||||
// Check verifies what the module promises and relies on: the package (found, not installed by the
|
||||
// mesh); the service running and enabled; one start for the tray (the vendor's autostart entry, which
|
||||
// the session's dex runs); and the tray running once in a desktop session.
|
||||
func (m *Machine) Check() (CheckAnswer, error) {
|
||||
a := CheckAnswer{Findings: []Finding{}, Starts: []string{}}
|
||||
add := func(what, do string) { a.Findings = append(a.Findings, Finding{what, do}) }
|
||||
v, err := m.installed(packageFor)
|
||||
if err != nil {
|
||||
return a, err
|
||||
}
|
||||
if v == "" {
|
||||
add("forticlient-vpn is not installed. It is outside the official repositories, so the mesh does not install it",
|
||||
"install it from the AUR by hand")
|
||||
}
|
||||
if s := m.service(); s.Active != "active" || s.Enabled != "enabled" {
|
||||
add(fmt.Sprintf("the service %s is %s and %s", serviceUnit, s.Active, s.Enabled),
|
||||
"push the module, which declares it running and enabled")
|
||||
}
|
||||
entry := m.autostart(entryName)
|
||||
if entry.Starts {
|
||||
a.Starts = append(a.Starts, "XDG autostart: "+entry.From)
|
||||
if entry.From != "/etc/xdg/autostart/"+entryName {
|
||||
add("the account's own "+entry.From+" replaces the vendor's entry", "remove it, so the vendor's entry is the one start")
|
||||
}
|
||||
} else {
|
||||
add("the tray does not start with the session ("+entry.Because+")",
|
||||
"remove ~/.config/autostart/"+entryName+" if it hides the vendor's entry; if the vendor's is gone, reinstall forticlient-vpn, whose install links it")
|
||||
}
|
||||
if o := m.cmd(0, nil, "dex", "--version"); o.Err != nil {
|
||||
add("dex, which runs the XDG autostart entries at login, is not installed", "assign the i3 module, which installs it and runs it")
|
||||
}
|
||||
for _, word := range []string{launcherWord, trayComm} {
|
||||
for _, l := range m.i3Starts(word) {
|
||||
a.Starts = append(a.Starts, "window manager: "+l)
|
||||
add("a second start: "+l, "remove the line; the vendor's autostart entry is the tray's one start")
|
||||
}
|
||||
}
|
||||
if _, err := m.session(); err == nil {
|
||||
for _, p := range []struct{ comm, word string }{{launcherComm, launcherWord}, {trayComm, trayComm}} {
|
||||
switch running := m.procs(p.comm); {
|
||||
case len(running) == 0:
|
||||
add("no "+p.word+" runs in the desktop session", "forticlient_restart")
|
||||
case len(running) > 1:
|
||||
add(fmt.Sprintf("%d of %s run", len(running), p.word), "forticlient_restart ends them all and starts one")
|
||||
}
|
||||
}
|
||||
}
|
||||
a.OK = len(a.Findings) == 0
|
||||
return a, nil
|
||||
}
|
||||
@@ -0,0 +1,142 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"strings"
|
||||
"testing"
|
||||
)
|
||||
|
||||
// secrets are what the operator's VPN configuration holds on a real machine. The fake machine carries
|
||||
// them where the client keeps them, and no answer may.
|
||||
var secrets = []string{"vpn.example.invalid", "192.0.2.10", "s3cret-psk", "work-profile", "BEGIN CERTIFICATE", "65d16a50"}
|
||||
|
||||
func newClient(t *testing.T, running, connected bool) *fake {
|
||||
f := newFake(t)
|
||||
f.write("/opt/forticlient/Fortitray.desktop", "[Desktop Entry]\nType=Application\nName=Fortitray\nExec=/opt/forticlient/fortitraylauncher\nNoDisplay=true\n")
|
||||
f.write("/etc/xdg/autostart/"+entryName, "[Desktop Entry]\nType=Application\nName=Fortitray\nExec=/opt/forticlient/fortitraylauncher\nNoDisplay=true\n")
|
||||
f.write("/etc/forticlient/config.db", "work-profile vpn.example.invalid 192.0.2.10 s3cret-psk\n")
|
||||
f.write(testHome+"/.config/FortiClient/state.json", `{"gateway":"vpn.example.invalid","cert":"-----BEGIN CERTIFICATE-----"}`)
|
||||
f.write("/sys/class/net/wlp3s0/flags", "0x1003\n")
|
||||
if connected {
|
||||
f.write("/sys/class/net/fctvpn65d16a50/flags", "0x1091\n")
|
||||
f.write("/sys/class/net/fctvpn65d16a50/address", "192.0.2.10\n")
|
||||
}
|
||||
if running {
|
||||
f.proc(3857, 1000, launcherComm, []string{launcherBin, "--profile=work-profile"}, "session-c1.scope")
|
||||
f.proc(4509, 1000, trayComm, []string{"/opt/forticlient/fortitray", "--gateway", "vpn.example.invalid"}, "session-c1.scope")
|
||||
}
|
||||
f.answer = func(name string, args []string) Output {
|
||||
switch {
|
||||
case name == "pacman" && args[0] == "-Q":
|
||||
return Output{Stdout: "forticlient-vpn 7.4.3.5411-1\n"}
|
||||
case name == "pacman" && args[0] == "-Qqm":
|
||||
return Output{Stdout: "forticlient-vpn\n"}
|
||||
case name == "systemctl" && args[0] == "is-active":
|
||||
return Output{Stdout: "active\n"}
|
||||
case name == "systemctl" && args[0] == "is-enabled":
|
||||
return Output{Stdout: "enabled\n"}
|
||||
}
|
||||
return Output{}
|
||||
}
|
||||
return f
|
||||
}
|
||||
|
||||
// carries fails the test when an answer holds anything of the VPN's configuration.
|
||||
func carries(t *testing.T, answer any) {
|
||||
t.Helper()
|
||||
raw, _ := json.Marshal(answer)
|
||||
for _, s := range secrets {
|
||||
if strings.Contains(string(raw), s) {
|
||||
t.Fatalf("the answer carries %q: %s", s, raw)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestStatusIsRunningAndConnectedStateAndNothingOfTheConfiguration(t *testing.T) {
|
||||
f := newClient(t, true, true)
|
||||
s, err := f.Status()
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if s.Installed != "7.4.3.5411-1" || !s.Foreign || s.Service != (Service{"active", "enabled"}) || len(s.Launcher) != 1 || len(s.Tray) != 1 ||
|
||||
!s.StartedBy.Starts || !s.Tunnel.Connected || s.Tunnel.Up != 1 {
|
||||
t.Fatalf("%+v", s)
|
||||
}
|
||||
if s.Launcher[0].Command != launcherWord || s.Tray[0].Command != trayComm {
|
||||
t.Fatalf("processes by command name only: %+v %+v", s.Launcher, s.Tray)
|
||||
}
|
||||
carries(t, s)
|
||||
for _, c := range f.calls {
|
||||
for _, never := range []string{"forticlient-cli", "fortivpn", "journalctl", "sqlite", "/etc/forticlient", "/opt/forticlient/.config"} {
|
||||
if strings.Contains(c, never) {
|
||||
t.Fatalf("ran %q", c)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
down := newClient(t, true, false)
|
||||
down.write("/sys/class/net/fctvpn0/flags", "0x1090\n")
|
||||
if s, _ := down.Status(); s.Tunnel.Connected || s.Tunnel.Up != 0 {
|
||||
t.Fatalf("an interface that is down is no tunnel: %+v", s.Tunnel)
|
||||
}
|
||||
}
|
||||
|
||||
func TestCheckPassesTheVendorsOneStartAndNeverJudgesTheConnection(t *testing.T) {
|
||||
f := newClient(t, true, false)
|
||||
f.desktopSession()
|
||||
c, err := f.Check()
|
||||
if err != nil || !c.OK || len(c.Starts) != 1 || c.Starts[0] != "XDG autostart: /etc/xdg/autostart/"+entryName {
|
||||
t.Fatalf("%+v %v", c, err)
|
||||
}
|
||||
carries(t, c)
|
||||
|
||||
f.write(testHome+"/.config/i3/config", "exec --no-startup-id /opt/forticlient/fortitraylauncher\n")
|
||||
f.write(testHome+"/.config/autostart/"+entryName, "[Desktop Entry]\nExec=/opt/forticlient/fortitraylauncher\nHidden=true\n")
|
||||
f.proc(3858, 1000, launcherComm, []string{launcherBin}, "session-c1.scope")
|
||||
f.answer = func(name string, args []string) Output {
|
||||
switch name {
|
||||
case "pacman":
|
||||
return Output{Code: 1}
|
||||
case "systemctl":
|
||||
return Output{Stdout: "inactive\n", Code: 3}
|
||||
case "dex":
|
||||
return Output{Code: 127, Err: ErrNotInstalled}
|
||||
}
|
||||
return Output{}
|
||||
}
|
||||
c, _ = f.Check()
|
||||
var all []string
|
||||
for _, x := range c.Findings {
|
||||
all = append(all, x.What)
|
||||
}
|
||||
got := strings.Join(all, "\n")
|
||||
for _, want := range []string{"not installed", "forticlient.service is inactive", "does not start with the session (Hidden=true)", "dex",
|
||||
"a second start: ~/.config/i3/config:1", "2 of fortitraylauncher run"} {
|
||||
if !strings.Contains(got, want) {
|
||||
t.Errorf("no finding %q in\n%s", want, got)
|
||||
}
|
||||
}
|
||||
carries(t, c)
|
||||
}
|
||||
|
||||
func TestRestartStartsTheLauncherAndLeavesTheTunnel(t *testing.T) {
|
||||
f := newClient(t, true, true)
|
||||
if _, err := f.Restart(); err == nil || !strings.Contains(err.Error(), "no graphical session") {
|
||||
t.Fatalf("without a desktop: %v", err)
|
||||
}
|
||||
f.desktopSession()
|
||||
f.onStart = func(argv []string) { f.proc(9100, 1000, launcherComm, argv, "app.slice/"+restartAs+".service") }
|
||||
a, err := f.Restart()
|
||||
if err != nil || len(a.Ended) != 2 || len(a.Running) != 1 || !a.Tunnel.Connected {
|
||||
t.Fatalf("%+v %v", a, err)
|
||||
}
|
||||
if !f.called("systemd-run --user --collect --quiet --unit=" + restartAs + " --setenv=DISPLAY=:1") {
|
||||
t.Fatalf("%q", f.calls)
|
||||
}
|
||||
for _, c := range f.calls {
|
||||
if strings.Contains(c, serviceUnit) {
|
||||
t.Fatalf("the restart touched the service: %q", c)
|
||||
}
|
||||
}
|
||||
carries(t, a)
|
||||
}
|
||||
@@ -0,0 +1,49 @@
|
||||
// The forticlient module's Go tools bundle (novox/hq ADR 0188, ADR 0193, ADR 0208): the FortiClient
|
||||
// VPN client's tray in the operator's session and the vendor's service behind it, served by the node's
|
||||
// runtime as the operator account. The module holds no seat, so every tool is its own. The tools
|
||||
// report running and connected state only: never a profile, a credential, a gateway or a certificate.
|
||||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
|
||||
stdio "git.novox.be/novox/mesh-sdk/go"
|
||||
)
|
||||
|
||||
func main() {
|
||||
if err := stdio.Serve("", tools()); err != nil {
|
||||
fmt.Fprintln(os.Stderr, err)
|
||||
os.Exit(1)
|
||||
}
|
||||
}
|
||||
|
||||
var machine = NewMachine()
|
||||
|
||||
func tools() []stdio.Tool {
|
||||
return []stdio.Tool{
|
||||
{
|
||||
Name: "forticlient_status",
|
||||
Description: "The VPN client: the installed version and whether it came from outside the official " +
|
||||
"repositories, the vendor's service (active, enabled), whether the tray and its launcher run " +
|
||||
"(pid, since, scope or unit), what starts the tray at login, and whether a tunnel is up (a " +
|
||||
"count; never a name, an address, a gateway or a profile). (r)",
|
||||
Run: func(map[string]any) (any, error) { return machine.Status() },
|
||||
},
|
||||
{
|
||||
Name: "forticlient_restart",
|
||||
Description: "End the tray and its launcher (asked first, then forced after 5 s) and start the " +
|
||||
"launcher again in the operator's desktop session, under the account's service manager. The " +
|
||||
"tunnel is the service's and is not touched. Needs someone logged in to the desktop. (a)",
|
||||
Run: func(map[string]any) (any, error) { return machine.Restart() },
|
||||
},
|
||||
{
|
||||
Name: "forticlient_check",
|
||||
Description: "Check what the module promises and relies on: the package is installed (by hand: it is " +
|
||||
"outside the official repositories); the service runs and is enabled; the tray has exactly one " +
|
||||
"start (the vendor's XDG autostart entry, which the session's dex runs; no window-manager exec); " +
|
||||
"and the tray and its launcher run once in a desktop session. Being connected is not checked. (r)",
|
||||
Run: func(map[string]any) (any, error) { return machine.Check() },
|
||||
},
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,106 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"reflect"
|
||||
"strings"
|
||||
"testing"
|
||||
)
|
||||
|
||||
// forticlient's shape (novox/hq ADR 0205, ADR 0207, ADR 0208): no package (the client is outside the
|
||||
// official repositories and kept as found), the vendor's service declared running and enabled, the X
|
||||
// display on its own machine, no start of its own (the vendor's autostart entry is the tray's one
|
||||
// start), nothing of the VPN's configuration, and the Go bundle serving exactly the listed forticlient_
|
||||
// tools.
|
||||
|
||||
type manifest struct {
|
||||
Module string `json:"module"`
|
||||
Version string `json:"version"`
|
||||
Capabilities []string `json:"capabilities"`
|
||||
Requires []string `json:"requires"`
|
||||
Tools []string `json:"tools"`
|
||||
Resources []map[string]any `json:"resources"`
|
||||
Claims []any `json:"claims"`
|
||||
Seats []any `json:"seats"`
|
||||
Shell []any `json:"shell"`
|
||||
Contributions []struct {
|
||||
Seat string `json:"seat"`
|
||||
Kind string `json:"kind"`
|
||||
Content string `json:"content"`
|
||||
} `json:"contributions"`
|
||||
Environment any `json:"environment"`
|
||||
Build struct {
|
||||
Artifacts []map[string]any `json:"artifacts"`
|
||||
} `json:"build"`
|
||||
}
|
||||
|
||||
func readManifest(t *testing.T) (manifest, string) {
|
||||
t.Helper()
|
||||
raw, err := os.ReadFile(filepath.Join("..", "..", "module.json"))
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
dec := json.NewDecoder(strings.NewReader(string(raw)))
|
||||
dec.DisallowUnknownFields()
|
||||
var m manifest
|
||||
if err := dec.Decode(&m); err != nil {
|
||||
t.Fatalf("module.json: %v", err)
|
||||
}
|
||||
return m, string(raw)
|
||||
}
|
||||
|
||||
func TestTheToolsAgreeWithTheManifest(t *testing.T) {
|
||||
m, raw := readManifest(t)
|
||||
served := map[string]bool{}
|
||||
for _, tool := range tools() {
|
||||
served[tool.Name] = true
|
||||
if !strings.HasPrefix(tool.Name, "forticlient_") || strings.TrimSpace(tool.Description) == "" {
|
||||
t.Errorf("%s: prefixed %s and described", tool.Name, "forticlient_")
|
||||
}
|
||||
}
|
||||
for _, name := range m.Tools {
|
||||
if !served[name] {
|
||||
t.Errorf("module.json lists %s, which the bundle does not serve", name)
|
||||
}
|
||||
delete(served, name)
|
||||
}
|
||||
for name := range served {
|
||||
t.Errorf("the bundle serves %s, which module.json does not list", name)
|
||||
}
|
||||
if len(m.Build.Artifacts) != 1 {
|
||||
t.Fatalf("%v", m.Build.Artifacts)
|
||||
}
|
||||
b := m.Build.Artifacts[0]
|
||||
if b["kind"] != "bundle" || b["language"] != "go" || b["system"] != "arch" ||
|
||||
b["from"] != "cmd/forticlient-tools" || b["binary"] != "forticlient-tools" {
|
||||
t.Errorf("the Go tools bundle: %v", b)
|
||||
}
|
||||
s := strings.ToLower(raw)
|
||||
for _, never := range []string{"/home/", "jochen", "g14", "shanks", "novox.be", "http", "password", "token"} {
|
||||
if strings.Contains(s, never) {
|
||||
t.Errorf("module.json names %q", never)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestItDeclaresTheServiceAndNothingOfTheConfiguration(t *testing.T) {
|
||||
m, raw := readManifest(t)
|
||||
if m.Module != "forticlient" || !reflect.DeepEqual(m.Requires, []string{"x11-display"}) ||
|
||||
!reflect.DeepEqual(m.Capabilities, []string{"service-manager"}) {
|
||||
t.Fatalf("%+v", m)
|
||||
}
|
||||
if len(m.Resources) != 1 || m.Resources[0]["type"] != "service" || m.Resources[0]["unit"] != serviceUnit ||
|
||||
m.Resources[0]["state"] != "running" || m.Resources[0]["boot"] != "enabled" || m.Resources[0]["restart-on"] != nil {
|
||||
t.Fatalf("resources: %v", m.Resources)
|
||||
}
|
||||
if m.Claims != nil || m.Seats != nil || m.Environment != nil || m.Shell != nil || m.Contributions != nil {
|
||||
t.Fatal("no seat, no environment, and no second start")
|
||||
}
|
||||
for _, never := range []string{"/etc/forticlient", "/opt/forticlient", "autostart", "\"package\"", "vpn.", "gateway", "profile"} {
|
||||
if strings.Contains(raw, never) {
|
||||
t.Errorf("module.json names %s", never)
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,5 @@
|
||||
module forticlient
|
||||
|
||||
go 1.22
|
||||
|
||||
require git.novox.be/novox/mesh-sdk/go v0.1.7
|
||||
@@ -0,0 +1,2 @@
|
||||
git.novox.be/novox/mesh-sdk/go v0.1.7 h1:C0sTQmtTiyYH7bnqZb7PusXnqA37gKuT7Nqjn9gG47w=
|
||||
git.novox.be/novox/mesh-sdk/go v0.1.7/go.mod h1:GFuZUElBZ9A++mxgIKo97aXXo+kV0uJ/UkbhQPPIbrY=
|
||||
@@ -0,0 +1,39 @@
|
||||
{
|
||||
"module": "forticlient",
|
||||
"version": "1",
|
||||
"capabilities": [
|
||||
"service-manager"
|
||||
],
|
||||
"requires": [
|
||||
"x11-display"
|
||||
],
|
||||
"tools": [
|
||||
"forticlient_status",
|
||||
"forticlient_restart",
|
||||
"forticlient_check"
|
||||
],
|
||||
"resources": [
|
||||
{
|
||||
"id": "scheduler",
|
||||
"type": "service",
|
||||
"unit": "forticlient.service",
|
||||
"state": "running",
|
||||
"boot": "enabled"
|
||||
}
|
||||
],
|
||||
"build": {
|
||||
"artifacts": [
|
||||
{
|
||||
"name": "tools",
|
||||
"kind": "bundle",
|
||||
"language": "go",
|
||||
"system": "arch",
|
||||
"from": "cmd/forticlient-tools",
|
||||
"binary": "forticlient-tools",
|
||||
"loads": [
|
||||
"forticlient-tools"
|
||||
]
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user