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package state
import (
"fmt"
"os"
"strings"
"text/tabwriter"
"time"
"git.gensokyo.uk/security/fortify/internal/fmsg"
"git.gensokyo.uk/security/fortify/internal/system"
)
// MustPrintLauncherStateSimpleGlobal prints active launcher states of all simple stores
// in an implementation-specific way.
func MustPrintLauncherStateSimpleGlobal(w **tabwriter.Writer, runDir string) {
now := time.Now().UTC()
s := NewMulti(runDir)
// read runtime directory to get all UIDs
if aids, err := s.List(); err != nil {
fmsg.Fatal("cannot list store:", err)
} else {
for _, aid := range aids {
// print states belonging to this store
s.(*multiStore).mustPrintLauncherState(aid, w, now)
}
}
// mustPrintLauncherState causes store activity so store needs to be closed
if err := s.Close(); err != nil {
fmsg.Printf("cannot close store: %v", err)
}
}
func (s *multiStore) mustPrintLauncherState(aid int, w **tabwriter.Writer, now time.Time) {
var innerErr error
if ok, err := s.Do(aid, func(c Cursor) {
innerErr = func() error {
// read launcher states
states, err := c.Load()
if err != nil {
return err
}
// initialise tabwriter if nil
if *w == nil {
*w = tabwriter.NewWriter(os.Stdout, 0, 1, 4, ' ', 0)
// write header when initialising
if !fmsg.Verbose() {
_, _ = fmt.Fprintln(*w, "\tPID\tApp\tUptime\tEnablements\tCommand")
} else {
// argv is emitted in body when verbose
_, _ = fmt.Fprintln(*w, "\tPID\tApp\tArgv")
}
}
// print each state
for _, state := range states {
// skip nil states
if state == nil {
_, _ = fmt.Fprintln(*w, "\tnil state entry")
continue
}
// build enablements and command string
var (
ets *strings.Builder
cs = "(No command information)"
)
// check if enablements are provided
if state.Config != nil {
ets = new(strings.Builder)
// append enablement strings in order
for i := system.Enablement(0); i < system.Enablement(system.ELen); i++ {
if state.Config.Confinement.Enablements.Has(i) {
ets.WriteString(", " + i.String())
}
}
cs = fmt.Sprintf("%q", state.Config.Command)
}
if ets != nil {
// prevent an empty string
if ets.Len() == 0 {
ets.WriteString("(No enablements)")
}
} else {
ets = new(strings.Builder)
ets.WriteString("(No confinement information)")
}
if !fmsg.Verbose() {
_, _ = fmt.Fprintf(*w, "\t%d\t%d\t%s\t%s\t%s\n",
state.PID, aid, now.Sub(state.Time).Round(time.Second).String(), strings.TrimPrefix(ets.String(), ", "), cs)
} else {
// emit argv instead when verbose
_, _ = fmt.Fprintf(*w, "\t%d\t%d\t%s\n",
state.PID, aid, state.ID)
}
}
return nil
}()
}); err != nil {
fmsg.Printf("cannot perform action on app %d: %v", aid, err)
if !ok {
fmsg.Fatal("store faulted before printing")
}
}
if innerErr != nil {
fmsg.Fatalf("cannot print launcher state of app %d: %s", aid, innerErr)
}
}
|
