// invalidAction marks actions that have failed to run
func invalidAction(ctx Context, a mig.Action, origin string) (err error) {
defer func() {
if e := recover(); e != nil {
err = fmt.Errorf("invalidAction() -> %v", e)
}
ctx.Channels.Log <- mig.Log{ActionID: a.ID, Desc: "leaving invalidAction()"}.Debug()
}()
// move action to invalid dir
jsonA, err := json.Marshal(a)
if err != nil {
panic(err)
}
dest := fmt.Sprintf("%s/%.0f.json", ctx.Directories.Action.Invalid, a.ID)
err = safeWrite(ctx, dest, jsonA)
if err != nil {
panic(err)
}
// remove the action from its origin
os.Remove(origin)
if err != nil {
panic(err)
}
a.Status = "invalid"
a.LastUpdateTime = time.Now().UTC()
a.FinishTime = time.Now().UTC()
a.Counters.Sent = 0
err = ctx.DB.UpdateAction(a)
if err != nil {
panic(err)
}
desc := fmt.Sprintf("invalidAction(): Action '%s' has been marked as invalid.", a.Name)
ctx.Channels.Log <- mig.Log{OpID: ctx.OpID, ActionID: a.ID, Desc: desc}.Debug()
return
}
// FinishAction updates the action fields to mark it as done
func (db *DB) FinishAction(a mig.Action) (err error) {
a.FinishTime = time.Now()
a.Status = "completed"
_, err = db.c.Exec(`UPDATE actions SET (finishtime, lastupdatetime, status) = ($1, $2, $3) WHERE id=$4`,
a.FinishTime, a.LastUpdateTime, a.Status, a.ID)
if err != nil {
return fmt.Errorf("Failed to update action: '%v'", err)
}
return
}
// landAction moves an action file to the Done directory and
// updates it in database
func landAction(ctx Context, a mig.Action) (err error) {
defer func() {
if e := recover(); e != nil {
err = fmt.Errorf("landAction() -> %v", e)
}
ctx.Channels.Log <- mig.Log{ActionID: a.ID, Desc: "leaving landAction()"}.Debug()
}()
// update status and timestamps
a.Status = "done"
a.FinishTime = time.Now().UTC()
duration := a.FinishTime.Sub(a.StartTime)
// log
desc := fmt.Sprintf("action has completed in %s", duration.String())
ctx.Channels.Log <- mig.Log{OpID: ctx.OpID, ActionID: a.ID, Desc: desc}
// move action to done dir
jsonA, err := json.Marshal(a)
if err != nil {
panic(err)
}
dest := fmt.Sprintf("%s/%.0f.json", ctx.Directories.Action.Done, a.ID)
err = safeWrite(ctx, dest, jsonA)
if err != nil {
panic(err)
}
// remove the action from its origin
origin := fmt.Sprintf("%s/%.0f.json", ctx.Directories.Action.InFlight, a.ID)
os.Remove(origin)
if err != nil {
panic(err)
}
err = ctx.DB.FinishAction(a)
if err != nil {
panic(err)
}
desc = fmt.Sprintf("landAction(): Action '%s' has landed", a.Name)
ctx.Channels.Log <- mig.Log{OpID: ctx.OpID, ActionID: a.ID, Desc: desc}.Debug()
return
}
// createAction receives a signed action in a POST request, validates it,
// and write it into the scheduler spool
func createAction(respWriter http.ResponseWriter, request *http.Request) {
var (
err error
action mig.Action
)
opid := getOpID(request)
loc := fmt.Sprintf("%s%s", ctx.Server.Host, request.URL.String())
resource := cljs.New(loc)
defer func() {
if e := recover(); e != nil {
ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: fmt.Sprintf("%v", e)}.Err()
resource.SetError(cljs.Error{Code: fmt.Sprintf("%.0f", opid), Message: fmt.Sprintf("%v", e)})
respond(http.StatusInternalServerError, resource, respWriter, request)
}
ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: "leaving createAction()"}.Debug()
}()
// parse the POST body into a mig action
err = request.ParseForm()
if err != nil {
panic(err)
}
postAction := request.FormValue("action")
err = json.Unmarshal([]byte(postAction), &action)
if err != nil {
panic(err)
}
ctx.Channels.Log <- mig.Log{OpID: opid, Desc: fmt.Sprintf("Received action for creation '%s'", action)}.Debug()
// Init action fields
action.ID = mig.GenID()
date0 := time.Date(0011, time.January, 11, 11, 11, 11, 11, time.UTC)
date1 := time.Date(9998, time.January, 11, 11, 11, 11, 11, time.UTC)
action.StartTime = date0
action.FinishTime = date1
action.LastUpdateTime = date0
action.Status = "pending"
// load keyring and validate action
keyring, err := getKeyring()
if err != nil {
panic(err)
}
err = action.Validate()
if err != nil {
panic(err)
}
err = action.VerifySignatures(keyring)
if err != nil {
panic(err)
}
ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: "Received new action with valid signature"}
// write action to database
err = ctx.DB.InsertAction(action)
if err != nil {
panic(err)
}
// write signatures to database
astr, err := action.String()
if err != nil {
panic(err)
}
for _, sig := range action.PGPSignatures {
k, err := getKeyring()
if err != nil {
panic(err)
}
fp, err := pgp.GetFingerprintFromSignature(astr, sig, k)
if err != nil {
panic(err)
}
inv, err := ctx.DB.InvestigatorByFingerprint(fp)
if err != nil {
panic(err)
}
err = ctx.DB.InsertSignature(action.ID, inv.ID, sig)
if err != nil {
panic(err)
}
}
ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: "Action written to database"}
err = resource.AddItem(cljs.Item{
Href: fmt.Sprintf("%s/action?actionid=%.0f", ctx.Server.BaseURL, action.ID),
Data: []cljs.Data{{Name: "action ID " + fmt.Sprintf("%.0f", action.ID), Value: action}},
})
if err != nil {
panic(err)
}
// return a 202 Accepted. the action will be processed asynchronously, and may fail later.
respond(http.StatusAccepted, resource, respWriter, request)
}