# CORS (Cross-Origin Resource Sharing)

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS o "Cross-Origin Resource Sharing"</a> se refiere a situaciones en las que un frontend que se ejecuta en un navegador tiene código JavaScript que se comunica con un backend, y el backend está en un "origen" diferente al frontend.

## Origen

    /**
     * Called when the service transitions from {@linkplain State#NEW NEW} to {@linkplain
     * State#STARTING STARTING}. This occurs when {@link Service#startAsync} is called the first
     * time.
     */
    public void starting() {}

    /**
     * Called when the service transitions from {@linkplain State#STARTING STARTING} to {@linkplain
     * State#RUNNING RUNNING}. This occurs when a service has successfully started.
     */

# CORS (Cross-Origin Resource Sharing)

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS ou "Cross-Origin Resource Sharing"</a> refere-se às situações em que um frontend rodando em um navegador possui um código JavaScript que se comunica com um backend, e o backend está em uma "origem" diferente do frontend.

## Origem

[2020-01-01 00:00:00] Q10000 starting              : OkHttp ConnectionPool
[2020-01-01 00:00:00] Q10000 run again after 300 s : OkHttp ConnectionPool
[2020-01-01 00:00:00] Q10000 finished run in   1 ms: OkHttp ConnectionPool
[2020-01-01 00:00:00] Q10001 scheduled after   0 µs: OkHttp squareup.com applyAndAckSettings
[2020-01-01 00:00:00] Q10001 starting              : OkHttp squareup.com applyAndAckSettings

Если же вы хотите добавить собственные заголовки, которые клиент сможет увидеть в браузере, то вам потребуется добавить их в настройки CORS ([CORS (Cross-Origin Resource Sharing)](cors.md){.internal-link target=_blank}), используя параметр `expose_headers`, см. документацию <a href="https://www.starlette.io/middleware/#corsmiddleware" class="external-link" target="_blank">Starlette's CORS docs</a>.

///

     *            access mode (r|rw)
     * @param sharing
     *            flags indicating for which operations others may concurrently open the file
     * @return random access file, needs to be closed when finished
     * @throws CIFSException if an error occurs accessing the resource
     *
     */
    SmbRandomAccess openRandomAccess(String mode, int sharing) throws CIFSException;

    /**

class="external-link" target="_blank">Verwenden Sie dafür das Präfix 'X-'</a>.

Wenn Sie jedoch benutzerdefinierte Header haben, die ein Client in einem Browser sehen soll, müssen Sie sie zu Ihrer CORS-Konfigurationen ([CORS (Cross-Origin Resource Sharing)](cors.md){.internal-link target=_blank}) hinzufügen, indem Sie den Parameter `expose_headers` verwenden, der in der <a href="https://www.starlette.io/middleware/#corsmiddleware" class="external-link" target="_blank">Starlette-CORS-Dokumentation</a>...

Mas se você tiver cabeçalhos personalizados desejando que um cliente em um navegador esteja apto a ver, você precisa adicioná-los às suas configurações CORS ([CORS (Cross-Origin Resource Sharing)](cors.md){.internal-link target=_blank}) usando o parâmetro `expose_headers` documentado em <a href="https://www.starlette.io/middleware/#corsmiddleware" class="external-link" target="_blank">Documentos CORS da Starlette</a>.

///

     * @param dst destination buffer
     * @param dstIndex starting index in destination buffer
     * @return number of bytes written
     */
    protected abstract int writeSetupWireFormat(byte[] dst, int dstIndex);

    /**
     * Writes parameters in wire format
     * @param dst destination buffer
     * @param dstIndex starting index in destination buffer
     * @return number of bytes written
     */

      this.state = state;
    }

    @Override
    public void starting() {
      ServiceManagerState state = this.state.get();
      if (state != null) {
        state.transitionService(service, NEW, STARTING);
        if (!(service instanceof NoOpService)) {
          logger.get().log(Level.FINE, "Starting {0}.", service);
        }
      }
    }

    @Override
    public void running() {