# Sicherheit – Erste Schritte

Stellen wir uns vor, dass Sie Ihre **Backend**-API auf einer Domain haben.

Und Sie haben ein **Frontend** auf einer anderen Domain oder in einem anderen Pfad derselben Domain (oder in einer mobilen Anwendung).

Und Sie möchten eine Möglichkeit haben, dass sich das Frontend mithilfe eines **Benutzernamens** und eines **Passworts** beim Backend authentisieren kann.

Wir können **OAuth2** verwenden, um das mit **FastAPI** zu erstellen.

     *
     * @see jcifs.internal.RequestWithPath#setFullUNCPath(java.lang.String, java.lang.String, java.lang.String)
     */
    @Override
    public void setFullUNCPath ( String domain, String server, String fullPath ) {
        this.domain = domain;
        this.server = server;
        this.fullPath = fullPath;
    }


    /**
     * @param path
     *            the path to set
     */
    @Override

 * limitations under the License.
 */
package okhttp3

import java.net.InetAddress
import java.net.UnknownHostException
import okhttp3.Dns.Companion.SYSTEM

/**
 * A domain name service that resolves IP addresses for host names. Most applications will use the
 * [system DNS service][SYSTEM], which is the default. Some applications may provide their own

	// Holds info about when the entry was created first.
	CreationDate time.Time `json:"creationDate"`

	// When a SRV record with a "Host: IP-address" is added, we synthesize
	// a srv.Target domain name.  Normally we convert the full Key where
	// the record lives to a DNS name and use this as the srv.Target. When
	// TargetStrip > 0 we strip the left most TargetStrip labels from the
	// DNS name.

      "x01234567890123456789012345678901234567890123456789012345678901x",
      "x01234567890123456789012345678901234567890123456789012345678901†",
      // OkHttp rejects domain names longer than 253 code points, the web platform tests don't.

      // compressed name pointer, first two bits are 1
      // drop second byte of compression offset
      source.skip(1)
    } else {
      while (length > 0) {
        // skip each part of the domain name
        source.skip(length.toLong())
        length = source.readByte().toInt()
      }
    }
  }

import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import javax.net.SocketFactory;
import jnr.unixsocket.UnixSocketChannel;

/** Impersonate TCP-style SocketFactory over UNIX domain sockets. */
public final class UnixDomainSocketFactory extends SocketFactory {
  private final File path;

  public UnixDomainSocketFactory(File path) {
    this.path = path;
  }

    /**
     * @return server timezone offset
     * @throws CIFSException
     */
    long getServerTimeZoneOffset () throws CIFSException;


    /**
     * @return server reported domain name
     * @throws CIFSException
     */
    String getOEMDomainName () throws CIFSException;


    /**
     * @return the share we are connected to
     */
    String getConnectedShare ();

    <version>11-SNAPSHOT</version>
  </parent>

  <artifactId>inheritance</artifactId><!-- same as directory name -->
  <name>Model urls inheritance test child</name>

  <scm>
    <url>https://domain.org/override</url><!-- check that this won't impact child.site.url.inherit.append.path attribute inheritance -->
  </scm>
  <distributionManagement>

                    index = user.indexOf('\\');
                    if ( index == -1 )
                        index = user.indexOf('/');
                    domain = ( index != -1 ) ? user.substring(0, index) : domain;
                    user = ( index != -1 ) ? user.substring(index + 1) : user;
                }
                if ( user == null ) {
                    if ( !this.allowUserInteraction )