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