| 352 | } |
| 353 | |
| 354 | func (self *cmdObjRunner) processOutput( |
| 355 | reader io.Reader, |
| 356 | writer io.Writer, |
| 357 | promptUserForCredential func(CredentialType) <-chan string, |
| 358 | closeFunc func() error, |
| 359 | cmdObj *CmdObj, |
| 360 | ) { |
| 361 | checkForCredentialRequest := self.getCheckForCredentialRequestFunc() |
| 362 | task := cmdObj.GetTask() |
| 363 | |
| 364 | scanner := bufio.NewScanner(reader) |
| 365 | scanner.Split(bufio.ScanBytes) |
| 366 | for scanner.Scan() { |
| 367 | newBytes := scanner.Bytes() |
| 368 | askFor, ok := checkForCredentialRequest(newBytes) |
| 369 | if ok { |
| 370 | responseChan := promptUserForCredential(askFor) |
| 371 | if responseChan == nil { |
| 372 | // Returning a nil channel means we should terminate the process. |
| 373 | // We achieve this by closing the pty that it's running in. Note that this won't |
| 374 | // work for the case where we're not running in a pty (i.e. on Windows), but |
| 375 | // in that case we'll never be prompted for credentials, so it's not a concern. |
| 376 | if err := closeFunc(); err != nil { |
| 377 | self.log.Error(err) |
| 378 | } |
| 379 | break |
| 380 | } |
| 381 | |
| 382 | if task != nil { |
| 383 | task.Pause() |
| 384 | } |
| 385 | toInput := <-responseChan |
| 386 | if task != nil { |
| 387 | task.Continue() |
| 388 | } |
| 389 | // If the return data is empty we don't write anything to stdin |
| 390 | if toInput != "" { |
| 391 | _, _ = writer.Write([]byte(toInput)) |
| 392 | } |
| 393 | } |
| 394 | } |
| 395 | |
| 396 | if err := scanner.Err(); err != nil { |
| 397 | self.log.Error(err) |
| 398 | } |
| 399 | } |
| 400 | |
| 401 | // having a function that returns a function because we need to maintain some state inbetween calls hence the closure |
| 402 | func (self *cmdObjRunner) getCheckForCredentialRequestFunc() func([]byte) (CredentialType, bool) { |