/
controlsvc.go
444 lines (411 loc) · 10.9 KB
/
controlsvc.go
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//go:build !no_workceptor
// +build !no_workceptor
package workceptor
import (
"context"
"fmt"
"os"
"path"
"strconv"
"strings"
"github.com/distronode/receptor/pkg/controlsvc"
)
type workceptorCommandType struct {
w *Workceptor
}
type workceptorCommand struct {
w *Workceptor
subcommand string
params map[string]interface{}
}
func (t *workceptorCommandType) InitFromString(params string) (controlsvc.ControlCommand, error) {
tokens := strings.Split(params, " ")
if len(tokens) == 0 {
return nil, fmt.Errorf("no work subcommand")
}
c := &workceptorCommand{
w: t.w,
subcommand: strings.ToLower(tokens[0]),
params: make(map[string]interface{}),
}
switch c.subcommand {
case "submit":
if len(tokens) < 3 {
return nil, fmt.Errorf("work submit requires a target node and work type")
}
c.params["node"] = tokens[1]
c.params["worktype"] = tokens[2]
if len(tokens) > 3 {
c.params["params"] = strings.Join(tokens[3:], " ")
}
case "list":
if len(tokens) > 1 {
c.params["unitid"] = tokens[1]
}
case "status", "cancel", "release", "force-release":
if len(tokens) < 2 {
return nil, fmt.Errorf("work %s requires a unit ID", c.subcommand)
}
if len(tokens) > 2 {
return nil, fmt.Errorf("work %s does not take parameters after the unit ID", c.subcommand)
}
c.params["unitid"] = tokens[1]
case "results":
if len(tokens) < 2 {
return nil, fmt.Errorf("work results requires a unit ID")
}
if len(tokens) > 3 {
return nil, fmt.Errorf("work results only takes a unit ID and optional start position")
}
c.params["unitid"] = tokens[1]
if len(tokens) > 2 {
var err error
c.params["startpos"], err = strconv.ParseInt(tokens[2], 10, 64)
if err != nil {
return nil, fmt.Errorf("error converting start position to integer: %s", err)
}
} else {
c.params["startpos"] = int64(0)
}
}
return c, nil
}
// strFromMap extracts a string from a map[string]interface{}, handling errors.
func strFromMap(config map[string]interface{}, name string) (string, error) {
value, ok := config[name]
if !ok {
return "", fmt.Errorf("field %s missing", name)
}
valueStr, ok := value.(string)
if !ok {
return "", fmt.Errorf("field %s must be a string", name)
}
return valueStr, nil
}
// intFromMap extracts an int64 from a map[string]interface{}, handling errors.
func intFromMap(config map[string]interface{}, name string) (int64, error) {
value, ok := config[name]
if !ok {
return 0, fmt.Errorf("field %s missing", name)
}
valueInt, ok := value.(int64)
if ok {
return valueInt, nil
}
valueFloat, ok := value.(float64)
if ok {
return int64(valueFloat), nil
}
valueStr, ok := value.(string)
if ok {
valueInt, err := strconv.ParseInt(valueStr, 10, 64)
if err != nil {
return valueInt, err
}
}
return 0, fmt.Errorf("field %s value %s is not convertible to an int", name, value)
}
func boolFromMap(config map[string]interface{}, name string) (bool, error) {
value, ok := config[name]
if !ok {
return false, fmt.Errorf("field %s missing", name)
}
valueBoolStr, ok := value.(string)
if !ok {
return false, fmt.Errorf("field %s must be a string", name)
}
if valueBoolStr == "true" {
return true, nil
}
if valueBoolStr == "false" {
return false, nil
}
return false, fmt.Errorf("field %s value %s is not convertible to a bool", name, value)
}
func (t *workceptorCommandType) InitFromJSON(config map[string]interface{}) (controlsvc.ControlCommand, error) {
subCmd, err := strFromMap(config, "subcommand")
if err != nil {
return nil, err
}
c := &workceptorCommand{
w: t.w,
subcommand: strings.ToLower(subCmd),
params: make(map[string]interface{}),
}
switch c.subcommand {
case "submit":
for k, v := range config {
_, ok := v.(string)
if !ok {
return nil, fmt.Errorf("submit parameters must all be strings and %s is not", k)
}
c.params[k] = v
}
_, err := strFromMap(c.params, "node")
if err != nil {
return nil, err
}
_, err = strFromMap(c.params, "worktype")
if err != nil {
return nil, err
}
case "status", "cancel", "release", "force-release":
c.params["unitid"], err = strFromMap(config, "unitid")
if err != nil {
return nil, err
}
signature, err := strFromMap(config, "signature")
if err == nil {
c.params["signature"] = signature
}
case "list":
unitID, err := strFromMap(config, "unitid")
if err == nil {
c.params["unitid"] = unitID
}
case "results":
c.params["unitid"], err = strFromMap(config, "unitid")
if err != nil {
return nil, err
}
c.params["startpos"], err = intFromMap(config, "startpos")
if err != nil {
return nil, err
}
signature, err := strFromMap(config, "signature")
if err == nil {
c.params["signature"] = signature
}
}
return c, nil
}
func (c *workceptorCommand) processSignature(workType, signature string, connIsUnix, signWork bool) error {
shouldVerifySignature := c.w.ShouldVerifySignature(workType, signWork)
if !shouldVerifySignature && signature != "" {
return fmt.Errorf("work type did not expect a signature")
}
if shouldVerifySignature && !connIsUnix {
err := c.w.VerifySignature(signature)
if err != nil {
return err
}
}
return nil
}
func getSignWorkFromStatus(status *StatusFileData) bool {
red, ok := status.ExtraData.(*remoteExtraData)
if ok {
return red.SignWork
}
return false
}
// Worker function called by the control service to process a "work" command.
func (c *workceptorCommand) ControlFunc(ctx context.Context, nc controlsvc.NetceptorForControlCommand, cfo controlsvc.ControlFuncOperations) (map[string]interface{}, error) {
addr := cfo.RemoteAddr()
connIsUnix := false
if addr.Network() == "unix" {
connIsUnix = true
}
switch c.subcommand {
case "submit":
workNode, err := strFromMap(c.params, "node")
if err != nil {
return nil, err
}
workType, err := strFromMap(c.params, "worktype")
if err != nil {
return nil, err
}
tlsClient, err := strFromMap(c.params, "tlsclient")
if err != nil {
tlsClient = "" // optional so don't return
}
ttl, err := strFromMap(c.params, "ttl")
if err != nil {
ttl = ""
}
signWork, err := boolFromMap(c.params, "signwork")
if err != nil {
signWork = false
}
signature, err := strFromMap(c.params, "signature")
if err != nil {
signature = ""
}
workParams := make(map[string]string)
nonParams := []string{"command", "subcommand", "node", "worktype", "tlsclient", "ttl", "signwork", "signature"}
inNonParams := func(p string) bool {
for _, nonparam := range nonParams {
if p == nonparam {
return true
}
}
return false
}
for k, v := range c.params {
if ok := inNonParams(k); ok {
continue
}
vStr, ok := v.(string)
if !ok {
return nil, fmt.Errorf("%s must be a string", k)
}
workParams[k] = vStr
}
err = c.processSignature(workType, signature, connIsUnix, signWork)
if err != nil {
return nil, err
}
isLocalHost := strings.EqualFold(workNode, "localhost")
var worker WorkUnit
if workNode == nc.NodeID() || isLocalHost {
if ttl != "" {
return nil, fmt.Errorf("ttl option is intended for remote work only")
}
worker, err = c.w.AllocateUnit(workType, workParams)
} else {
worker, err = c.w.AllocateRemoteUnit(workNode, workType, tlsClient, ttl, signWork, workParams)
}
if err != nil {
return nil, err
}
cfr := make(map[string]interface{})
cfr["unitid"] = worker.ID()
stdin, err := os.OpenFile(path.Join(worker.UnitDir(), "stdin"), os.O_CREATE+os.O_WRONLY, 0o600)
if err != nil {
return nil, err
}
worker.UpdateBasicStatus(WorkStatePending, "Waiting for Input Data", 0)
err = cfo.ReadFromConn(fmt.Sprintf("Work unit created with ID %s. Send stdin data and EOF.\n", worker.ID()), stdin, &controlsvc.SocketConnIO{})
if err != nil {
worker.UpdateBasicStatus(WorkStateFailed, fmt.Sprintf("Error reading input data: %s", err), 0)
return nil, err
}
err = stdin.Close()
if err != nil {
worker.UpdateBasicStatus(WorkStateFailed, fmt.Sprintf("Error reading input data: %s", err), 0)
return nil, err
}
worker.UpdateBasicStatus(WorkStatePending, "Starting Worker", 0)
err = worker.Start()
if err != nil && !IsPending(err) {
worker.UpdateBasicStatus(WorkStateFailed, fmt.Sprintf("Error starting worker: %s", err), 0)
return cfr, err
}
if IsPending(err) {
cfr["result"] = "Job Submitted"
} else {
cfr["result"] = "Job Started"
}
return cfr, nil
case "list":
var unitList []string
targetUnitID, ok := c.params["unitid"].(string)
if ok {
unitList = append(unitList, targetUnitID)
} else {
unitList = c.w.ListKnownUnitIDs()
}
cfr := make(map[string]interface{})
for i := range unitList {
unitID := unitList[i]
status, err := c.w.unitStatusForCFR(unitID)
if err != nil {
return nil, err
}
cfr[unitID] = status
}
return cfr, nil
case "status":
unitid, err := strFromMap(c.params, "unitid")
if err != nil {
return nil, err
}
cfr, err := c.w.unitStatusForCFR(unitid)
if err != nil {
return nil, err
}
return cfr, nil
case "cancel", "release", "force-release":
unitid, err := strFromMap(c.params, "unitid")
if err != nil {
return nil, err
}
signature, err := strFromMap(c.params, "signature")
if err != nil {
signature = ""
}
cfr := make(map[string]interface{})
var pendingMsg string
var completeMsg string
if c.subcommand == "cancel" {
pendingMsg = "cancel pending"
completeMsg = "cancelled"
} else {
pendingMsg = "release pending"
completeMsg = "released"
}
unit, err := c.w.findUnit(unitid)
if err != nil {
cfr["unit not found"] = unitid
return cfr, err
}
status := unit.Status()
signWork := getSignWorkFromStatus(status)
err = c.processSignature(status.WorkType, signature, connIsUnix, signWork)
if err != nil {
return nil, err
}
if c.subcommand == "cancel" {
err = unit.Cancel()
} else {
err = unit.Release(c.subcommand == "force-release")
}
if err != nil && !IsPending(err) {
return nil, err
}
if IsPending(err) {
cfr[pendingMsg] = unitid
} else {
cfr[completeMsg] = unitid
}
return cfr, nil
case "results":
unitid, err := strFromMap(c.params, "unitid")
if err != nil {
return nil, err
}
startPos, err := intFromMap(c.params, "startpos")
if err != nil {
return nil, err
}
signature, err := strFromMap(c.params, "signature")
if err != nil {
signature = ""
}
unit, err := c.w.findUnit(unitid)
if err != nil {
return nil, err
}
status := unit.Status()
signWork := getSignWorkFromStatus(status)
err = c.processSignature(status.WorkType, signature, connIsUnix, signWork)
if err != nil {
return nil, err
}
resultChan, err := c.w.GetResults(ctx, unitid, startPos)
if err != nil {
return nil, err
}
err = cfo.WriteToConn(fmt.Sprintf("Streaming results for work unit %s\n", unitid), resultChan)
if err != nil {
return nil, err
}
err = cfo.Close()
if err != nil {
return nil, err
}
return nil, nil
}
return nil, fmt.Errorf("bad command")
}