# Security

There are many ways to handle security, authentication and authorization.

And it normally is a complex and "difficult" topic.

In many frameworks and systems just handling security and authentication takes a big amount of effort and code (in many cases it can be 50% or more of all the code written).

# OpenAPI

There are several utilities to handle OpenAPI.

        System.out.println("serving docs at http://localhost:" + getPort().get());
        DeploymentRegistry registry = getDeploymentRegistry();
        JavaApplicationHandle handle = registry.get(getPath(), JavaApplicationHandle.class);
        if (handle == null) {
            JavaExecHandleBuilder builder = getExecActionFactory().newJavaExec();
            builder.setExecutable(getJavaLauncher().get().getExecutablePath().getAsFile());

    }


    static FileEntry[] doDfsRootEnum ( CIFSContext ctx, SmbResourceLocator loc, Address address ) throws IOException {
        try ( DcerpcHandle handle = getHandle(ctx, loc, address, "\\PIPE\\netdfs") ) {
            MsrpcDfsRootEnum rpc = new MsrpcDfsRootEnum(loc.getServer());
            handle.sendrecv(rpc);
            if ( rpc.retval != 0 ) {
                throw new SmbException(rpc.retval, true);
            }

import jcifs.dcerpc.rpc;


@SuppressWarnings ( "javadoc" )
public class MsrpcSamrOpenDomain extends samr.SamrOpenDomain {

    public MsrpcSamrOpenDomain ( SamrPolicyHandle handle, int access, rpc.sid_t sid, SamrDomainHandle domainHandle ) {
        super(handle, access, sid, domainHandle);
        this.ptype = 0;
        this.flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

        if ( this.usageCount.get() != 0 && this.open ) {
            log.warn("File handle was not properly closed: " + this);
            if ( this.creationBacktrace != null ) {
                log.warn(Arrays.toString(this.creationBacktrace));
            }
        }
    }


    /**
     * @return a file handle with increased usage count
     */
    public SmbFileHandleImpl acquire () {

Here is the reference for it and its parameters.

You can import it directly from `fastapi`:

```python
from fastapi import Depends
```

::: fastapi.Depends

## `Security()`

For many scenarios, you can handle security (authorization, authentication, etc.) with dependencies, using `Depends()`.

But when you want to also declare OAuth2 scopes, you can use `Security()` instead of `Depends()`.

                        // Handle array type
                        attributes.put(name, parseArray(jsonParser));
                    } else if (jsonParser.getCurrentToken() == JsonToken.START_OBJECT) {
                        // Handle nested object type
                        attributes.put(name, parseObject(jsonParser));
                    } else {
                        // Handle primitive types (string, number, boolean, etc.)

 * response data before all request data has been received.
 *
 * See [okhttp3.RequestBody.isDuplex].
 */
@ExperimentalOkHttpApi
interface StreamHandler {
  fun handle(stream: Stream)

    before you create your `OkHttpClient`.

    ```
    Security.insertProviderAt(
        new org.conscrypt.OpenSSLProvider(), 1);
    ```

    Conscrypt is the bundled security provider on Android so it is not necessary
    to configure it on that platform.

 *  New: `HttpUrl.addQueryParameter()` percent-escapes more characters.