/
action.go
139 lines (112 loc) · 2.86 KB
/
action.go
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package action
import (
"bytes"
"encoding/json"
"errors"
"io/ioutil"
"os"
"os/exec"
"path"
"strings"
"time"
v2 "github.com/SpectoLabs/hoverfly/core/handlers/v2"
"github.com/SpectoLabs/hoverfly/core/models"
log "github.com/sirupsen/logrus"
)
type Action struct {
Binary string
Script *os.File
DelayInMs int
}
func NewAction(actionName, binary, scriptContent string, delayInMs int) (*Action, error) {
scriptInfo := &Action{}
if strings.TrimSpace(actionName) == "" {
return nil, errors.New("empty action name passed")
}
scriptInfo.DelayInMs = delayInMs
if err := setBinary(scriptInfo, binary); err != nil {
return nil, err
}
if err := setScript(scriptInfo, scriptContent); err != nil {
return nil, err
}
return scriptInfo, nil
}
func setBinary(action *Action, binary string) error {
action.Binary = binary
return nil
}
func setScript(action *Action, scriptContent string) error {
tempDir := path.Join(os.TempDir(), "hoverfly")
os.Mkdir(tempDir, 0777)
newScript, err := ioutil.TempFile(tempDir, "hoverfly_")
if err != nil {
return err
}
_, err = newScript.Write([]byte(scriptContent))
if err != nil {
return err
}
action.Script = newScript
return nil
}
func (action *Action) DeleteScript() error {
if action.Script == nil {
return nil
}
err := os.Remove(action.Script.Name())
if err != nil {
return err
}
action.Script = nil
return nil
}
func (action *Action) GetScript() (string, error) {
if action.Script == nil {
return "", nil
}
contents, err := ioutil.ReadFile(action.Script.Name())
if err != nil {
return "", err
}
return string(contents), nil
}
func (action *Action) GetActionView(actionName string) v2.ActionView {
scriptContent, _ := action.GetScript()
return v2.ActionView{
ActionName: actionName,
Binary: action.Binary,
ScriptContent: scriptContent,
DelayInMs: action.DelayInMs,
}
}
func (action *Action) ExecuteLocally(pair *models.RequestResponsePair) error {
pairViewBytes, err := json.Marshal(pair.ConvertToRequestResponsePairView())
if err != nil {
return err
}
log.WithFields(log.Fields{
"stdin": string(pairViewBytes),
}).Info("Delaying to execute post serve action")
//adding 200 ms to include some buffer for it to return response
time.Sleep(time.Duration(200+action.DelayInMs) * time.Millisecond)
actionCommand := exec.Command(action.Binary, action.Script.Name())
actionCommand.Stdin = bytes.NewReader(pairViewBytes)
var stdout bytes.Buffer
var stderr bytes.Buffer
actionCommand.Stdout = &stdout
actionCommand.Stderr = &stderr
if err := actionCommand.Start(); err != nil {
return err
}
if err := actionCommand.Wait(); err != nil {
return err
}
if len(stderr.Bytes()) > 0 {
log.Error("Error occurred while executing script " + stderr.String())
}
if len(stdout.Bytes()) > 0 {
log.Info("Output from post serve action " + stdout.String())
}
return nil
}