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Philipp Heckel
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Dec 27, 2021
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| package server | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "errors" | ||
| "fmt" | ||
| "github.com/emersion/go-smtp" | ||
| "io" | ||
| "io/ioutil" | ||
| "log" | ||
| "net/http" | ||
| "net/http/httptest" | ||
| "net/mail" | ||
| "strings" | ||
| "sync" | ||
| ) | ||
|
|
||
| // mailBackend implements SMTP server methods. | ||
| type mailBackend struct { | ||
| s *Server | ||
| } | ||
|
|
||
| func (b *mailBackend) Login(state *smtp.ConnectionState, username, password string) (smtp.Session, error) { | ||
| return &Session{s: b.s}, nil | ||
| } | ||
|
|
||
| func (b *mailBackend) AnonymousLogin(state *smtp.ConnectionState) (smtp.Session, error) { | ||
| return &Session{s: b.s}, nil | ||
| } | ||
|
|
||
| // Session is returned after EHLO. | ||
| type Session struct { | ||
| s *Server | ||
| from, to string | ||
| mu sync.Mutex | ||
| } | ||
|
|
||
| func (s *Session) AuthPlain(username, password string) error { | ||
| return nil | ||
| } | ||
|
|
||
| func (s *Session) Mail(from string, opts smtp.MailOptions) error { | ||
| s.mu.Lock() | ||
| defer s.mu.Unlock() | ||
| s.from = from | ||
| log.Println("Mail from:", from) | ||
| return nil | ||
| } | ||
|
|
||
| func (s *Session) Rcpt(to string) error { | ||
| s.mu.Lock() | ||
| defer s.mu.Unlock() | ||
| s.to = to | ||
| log.Println("Rcpt to:", to) | ||
| return nil | ||
| } | ||
|
|
||
| func (s *Session) Data(r io.Reader) error { | ||
| s.mu.Lock() | ||
| defer s.mu.Unlock() | ||
| b, err := ioutil.ReadAll(r) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| log.Println("Data:", string(b)) | ||
| msg, err := mail.ReadMessage(bytes.NewReader(b)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| body, err := io.ReadAll(msg.Body) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| topic := strings.TrimSuffix(s.to, "@ntfy.sh") | ||
| url := fmt.Sprintf("%s/%s", s.s.config.BaseURL, topic) | ||
| req, err := http.NewRequest("PUT", url, bytes.NewReader(body)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| subject := msg.Header.Get("Subject") | ||
| if subject != "" { | ||
| req.Header.Set("Title", subject) | ||
| } | ||
| rr := httptest.NewRecorder() | ||
| s.s.handle(rr, req) | ||
| if rr.Code != http.StatusOK { | ||
| return errors.New("error: " + rr.Body.String()) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (s *Session) Reset() { | ||
| s.mu.Lock() | ||
| s.from = "" | ||
| s.to = "" | ||
| s.mu.Unlock() | ||
| } | ||
|
|
||
| func (s *Session) Logout() error { | ||
| return nil | ||
| } |
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