mail, context

config.yml

@@ -1,3 +1,6 @@
+mail:
+    host: localhost:25
+
 directories:
   - path: /tmp/foo
     recursive: false
@@ -5,7 +8,9 @@ directories:
     pollingInterval: 60
     regex: "/[^\\.][^/]+.xml$"
     actions:
-      - type: http
+      - id: postXML
+        description: POST xml
+        type: http
         method: post
         url: http://localhost:8080/api/v1/_/renz_einfo/xml
         header:
@@ -13,12 +18,32 @@ directories:
           ContentType: application/xml
         # content: PLAIN IS FILECONTENT
         onError:
-          - type: move
+          - id: moveXMLError
+            description: MOVE xml to error dir
+            type: move
             to: /tmp/error/{{ filename }}
+          - id: mailXMLError
+            description: eInfo Import ERROR on POST xml
+            type: mail
+            to: sebastian@webmakers.de
+            subject: "{{ action.Description }}"
+            body: |
+              path: {{ path }}
+              event: {{ event }}
+
+              http status: {{ context.postXML.response.Status }}
+              
+              http response body
+              ------------------
+              {{ context.postXML.response.Body }}
+
+            from: noreply@webmakers.de
             stop: true
 
         onSuccess:
-          - type: delete
+          - id: deleteXML
+            description: DELETE xml after POST
+            type: delete
 
   - path: /tmp/foo
     recursive: false

go.mod

@@ -3,7 +3,7 @@ module gitbase.de/apairon/fstrigger
 go 1.16
 
 require (
-	github.com/davecgh/go-spew v1.1.1
+	github.com/domodwyer/mailyak/v3 v3.3.3
 	github.com/flosch/pongo2/v4 v4.0.2
 	github.com/rjeczalik/notify v0.9.2
 	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b

go.sum

@@ -1,5 +1,5 @@
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/domodwyer/mailyak/v3 v3.3.3 h1:E9cjqDUiwY1QSE5G2CbWHM7EJV5FybKPHnGovc2iaA8=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/domodwyer/mailyak/v3 v3.3.3/go.mod h1:lOm/u9CyCVWHeaAmHIdF4RiKVxKUT/H5XX10lIKAL6c=
 github.com/flosch/pongo2/v4 v4.0.2 h1:gv+5Pe3vaSVmiJvh/BZa82b7/00YUGm0PIyVVLop0Hw=
 github.com/flosch/pongo2/v4 v4.0.2/go.mod h1:B5ObFANs/36VwxxlgKpdchIJHMvHB562PW+BWPhwZD8=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=

main.go

@@ -13,13 +13,16 @@ import (
 	"sync"
 	"time"
 
+	"github.com/domodwyer/mailyak/v3"
 	"github.com/flosch/pongo2/v4"
 	"github.com/rjeczalik/notify"
 	"gopkg.in/yaml.v3"
 )
 
 type ActionConfig struct {
-	Type string
+	Id          string
+	Type        string
+	Description string
 
 	// http
 	Method  *string
@@ -30,6 +33,12 @@ type ActionConfig struct {
 	// move
 	To *string
 
+	// mail
+	// To *string
+	Subject *string
+	Body    *string
+	From    *string
+
 	Stop      bool
 	OnSuccess []ActionConfig `yaml:"onSuccess"`
 	OnError   []ActionConfig `yaml:"onError"`
@@ -45,10 +54,17 @@ type DirectoryConfig struct {
 	Actions         []ActionConfig
 }
 
+type MailConfig struct {
+	Host *string
+}
+
 type Config struct {
+	Mail        MailConfig
 	Directories []DirectoryConfig
 }
 
+var conf = Config{}
+
 var wg sync.WaitGroup
 
 type pollInfo struct {
@@ -68,6 +84,8 @@ func (p pollInfo) Sys() interface{} {
 	return nil
 }
 
+type actionCtx map[string]map[string]interface{}
+
 func startWatcher(directory *DirectoryConfig) {
 	c := make(chan notify.EventInfo, 1000)
 	monitoredEvents := []notify.Event{}
@@ -140,10 +158,14 @@ func startWatcher(directory *DirectoryConfig) {
 
 			if eventInfo != nil {
 				p := eventInfo.Path()
-				log.Printf("path: %s; event: %s\n", p, eventInfo.Event().String())
+				eventStr := eventInfo.Event().String()
+				if eventInfo.Event() == 0 {
+					eventStr = "POLLING"
+				}
+				log.Printf("path: %s; event: %s\n", p, eventStr)
 				if directory._regex == nil || directory._regex.MatchString(p) {
 					for _, action := range directory.Actions {
-						contin, _ := runAction(&action, eventInfo)
+						contin, _ := runAction(&action, eventInfo, nil)
 						if !contin {
 							break
 						}
@@ -180,41 +202,46 @@ func startWatcher(directory *DirectoryConfig) {
 
 }
 
-func runAction(action *ActionConfig, eventInfo notify.EventInfo) (contin bool, err error) {
+func runAction(action *ActionConfig, eventInfo notify.EventInfo, ctx actionCtx) (contin bool, err error) {
+	if ctx == nil {
+		ctx = make(actionCtx)
+	}
+	add2Ctx(action, ctx, "action", action)
+
 	contin = !action.Stop
-	log.Printf("path: %s; action: %s; stop: %v\n", eventInfo.Path(), action.Type, !contin)
+	log.Printf("path: %s; action: %s; stop: %v\n", eventInfo.Path(), action.Id, !contin)
 
 	switch action.Type {
 	case "http":
-		err = actionHttp(action, eventInfo)
+		err = actionHttp(action, eventInfo, ctx)
 	case "move":
-		err = actionMove(action, eventInfo)
+		err = actionMove(action, eventInfo, ctx)
 	case "delete":
-		err = actionDelete(action, eventInfo)
+		err = actionDelete(action, eventInfo, ctx)
 	case "log":
-		err = actionLog(action, eventInfo)
+		err = actionLog(action, eventInfo, ctx)
+	case "mail":
+		err = actionMail(action, eventInfo, ctx)
 	default:
 		err = fmt.Errorf("action type %s unknown", action.Type)
 	}
 
 	if err != nil {
-		log.Printf("path: %s; action: %s; error %s", eventInfo.Path(), action.Type, err)
+		add2Ctx(action, ctx, "error", err.Error())
+
+		log.Printf("path: %s; action: %s; error %s", eventInfo.Path(), action.Id, err)
 		for _, aE := range action.OnError {
-			_c, errE := runAction(&aE, eventInfo)
+			_c, _ := runAction(&aE, eventInfo, ctx)
 			contin = contin && _c
-			if errE != nil {
-				log.Printf("path: %s; action: %s; onError %s, error %s", eventInfo.Path(), action.Type, aE.Type, errE)
-			}
 			if !contin {
 				break
 			}
 		}
 	} else {
 		for _, aS := range action.OnSuccess {
-			_c, errS := runAction(&aS, eventInfo)
+			_c, errS := runAction(&aS, eventInfo, ctx)
 			contin = contin && _c
 			if errS != nil {
-				log.Printf("path: %s; action: %s; onSuccess %s, error %s", eventInfo.Path(), action.Type, aS.Type, errS)
 				err = errS
 			}
 			if !contin {
@@ -226,10 +253,19 @@ func runAction(action *ActionConfig, eventInfo notify.EventInfo) (contin bool, e
 	return contin, err
 }
 
-func actionHttp(action *ActionConfig, eventInfo notify.EventInfo) error {
+func add2Ctx(action *ActionConfig, ctx actionCtx, key string, val interface{}) {
+	if action.Id != "" {
+		if ctx[action.Id] == nil {
+			ctx[action.Id] = make(map[string]interface{})
+		}
+		ctx[action.Id][key] = val
+	}
+}
+
+func actionHttp(action *ActionConfig, eventInfo notify.EventInfo, ctx actionCtx) error {
 	method := "POST"
 	if action.Method != nil {
-		m, err := tpl2String(*action.Method, action, eventInfo)
+		m, err := tpl2String(*action.Method, action, eventInfo, ctx)
 		if err != nil {
 			return err
 		}
@@ -238,7 +274,7 @@ func actionHttp(action *ActionConfig, eventInfo notify.EventInfo) error {
 	if action.URL == nil {
 		return fmt.Errorf("missing url in http action")
 	}
-	url, err := tpl2String(*action.URL, action, eventInfo)
+	url, err := tpl2String(*action.URL, action, eventInfo, ctx)
 	if err != nil {
 		return err
 	}
@@ -253,7 +289,7 @@ func actionHttp(action *ActionConfig, eventInfo notify.EventInfo) error {
 			}
 			postData = bytes.NewBuffer(postBytes)
 		} else {
-			p, err := tpl2String(*action.Content, action, eventInfo)
+			p, err := tpl2String(*action.Content, action, eventInfo, ctx)
 			if err != nil {
 				return err
 			}
@@ -281,6 +317,12 @@ func actionHttp(action *ActionConfig, eventInfo notify.EventInfo) error {
 	fmt.Println(string(body))
 	defer resp.Body.Close()
 
+	add2Ctx(action, ctx, "response", map[string]interface{}{
+		"Status":     resp.Status,
+		"StatusCode": resp.StatusCode,
+		"Body":       string(body),
+	})
+
 	if resp.StatusCode >= 400 {
 		return fmt.Errorf("response status %s", resp.Status)
 	}
@@ -288,12 +330,12 @@ func actionHttp(action *ActionConfig, eventInfo notify.EventInfo) error {
 	return nil
 }
 
-func actionMove(action *ActionConfig, eventInfo notify.EventInfo) error {
+func actionMove(action *ActionConfig, eventInfo notify.EventInfo, ctx actionCtx) error {
 	if action.To == nil {
 		return fmt.Errorf("missing to: as destination for move action")
 	}
 
-	to, err := tpl2String(*action.To, action, eventInfo)
+	to, err := tpl2String(*action.To, action, eventInfo, ctx)
 	if err != nil {
 		return err
 	}
@@ -302,11 +344,11 @@ func actionMove(action *ActionConfig, eventInfo notify.EventInfo) error {
 	return err
 }
 
-func actionDelete(action *ActionConfig, eventInfo notify.EventInfo) error {
+func actionDelete(action *ActionConfig, eventInfo notify.EventInfo, ctx actionCtx) error {
 	return os.Remove(eventInfo.Path())
 }
 
-func actionLog(action *ActionConfig, eventInfo notify.EventInfo) error {
+func actionLog(action *ActionConfig, eventInfo notify.EventInfo, ctx actionCtx) error {
 	var logstr string
 	if action.Content != nil {
 		logstr = *action.Content
@@ -317,7 +359,55 @@ func actionLog(action *ActionConfig, eventInfo notify.EventInfo) error {
 	return nil
 }
 
-func tpl2String(tpl string, action *ActionConfig, eventInfo notify.EventInfo) (string, error) {
+func actionMail(action *ActionConfig, eventInfo notify.EventInfo, ctx actionCtx) error {
+	if conf.Mail.Host == nil {
+		return fmt.Errorf("missing host in mail: config")
+	}
+	if action.To == nil {
+		return fmt.Errorf("missing to: as recipient mail address")
+	}
+	if action.Subject == nil {
+		return fmt.Errorf("missing subject: action")
+	}
+	if action.Body == nil {
+		return fmt.Errorf("missing body: action")
+	}
+	if action.From == nil {
+		return fmt.Errorf("missing from: in action")
+	}
+
+	mail := mailyak.New(*conf.Mail.Host, nil)
+
+	to, err := tpl2String(*action.To, action, eventInfo, ctx)
+	if err != nil {
+		return err
+	}
+	mail.To(to)
+
+	from, err := tpl2String(*action.From, action, eventInfo, ctx)
+	if err != nil {
+		return err
+	}
+	mail.From(from)
+
+	mail.FromName("fstrigger")
+
+	subject, err := tpl2String(*action.Subject, action, eventInfo, ctx)
+	if err != nil {
+		return err
+	}
+	mail.Subject(subject)
+
+	body, err := tpl2String(*action.Body, action, eventInfo, ctx)
+	if err != nil {
+		return err
+	}
+	mail.Plain().Set(body)
+
+	return mail.Send()
+}
+
+func tpl2String(tpl string, action *ActionConfig, eventInfo notify.EventInfo, ctx actionCtx) (string, error) {
 	_tpl, err := pongo2.FromString(tpl)
 	if err != nil {
 		return "", err
@@ -328,13 +418,14 @@ func tpl2String(tpl string, action *ActionConfig, eventInfo notify.EventInfo) (s
 		"path":     p,
 		"dirname":  filepath.Dir(p),
 		"filename": filepath.Base(p),
+		"event":    eventInfo.Event().String(),
+		"action":   action,
+		"context":  ctx,
 	})
 }
 
 func main() {
 
-	conf := Config{}
-
 	confDat, err := ioutil.ReadFile("./config.yml")
 	if err != nil {
 		log.Fatalf("error %v", err)