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## org.apache.commons.httpclient.auth
Class BasicScheme

    java.lang.Object
      org.apache.commons.httpclient.auth.RFC2617Scheme
          org.apache.commons.httpclient.auth.BasicScheme

All Implemented Interfaces:
  AuthScheme

    public class BasicScheme

extends RFC2617Scheme

Basic authentication scheme as defined in RFC 2617.

Author:
  Remy Maucherat, Rodney Waldhoff, Jeff Dever, Ortwin Gl?ck, Sean C. Sullivan, Adrian Sutton, Mike Bowler, Oleg Kalnichevski

Constructor Summary
`BasicScheme()` Default constructor for the basic authetication scheme.
`BasicScheme(String challenge)` Deprecated. Use parameterless constructor and `AuthScheme.processChallenge(String)` method

Method Summary
`String` | `authenticate(Credentials credentials, HttpMethod method)` Produces basic authorization string for the given set of `Credentials`.
`String` | `authenticate(Credentials credentials, String method, String uri)` Deprecated. Use `authenticate(Credentials, HttpMethod)`
`static String` | `authenticate(UsernamePasswordCredentials credentials)` Deprecated. Use `authenticate(UsernamePasswordCredentials, String)` Returns a basic `Authorization` header value for the given `UsernamePasswordCredentials`.
`static String` | `authenticate(UsernamePasswordCredentials credentials, String charset)` Returns a basic `Authorization` header value for the given `UsernamePasswordCredentials` and charset.
`String` | `getSchemeName()` Returns textual designation of the basic authentication scheme.
`boolean` | `isComplete()` Tests if the Basic authentication process has been completed.
`boolean` | `isConnectionBased()` Returns `false`.
`void` | `processChallenge(String challenge)` Processes the Basic challenge.

Methods inherited from class org.apache.commons.httpclient.auth.RFC2617Scheme
`getID, getParameter, getParameters, getRealm`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### BasicScheme

    public BasicScheme()

  Default constructor for the basic authetication scheme.

  Since:
    3.0

### BasicScheme

    public BasicScheme(String challenge)
                throws MalformedChallengeException

  Deprecated. Use parameterless constructor and `AuthScheme.processChallenge(String)` method

  Constructor for the basic authetication scheme.

  Parameters:
    `challenge` - authentication challenge
  Throws:
    `MalformedChallengeException` - is thrown if the authentication challenge is malformed

Method Detail

### getSchemeName

    public String getSchemeName()

  Returns textual designation of the basic authentication scheme.

  Returns:
    `basic`

### processChallenge

    public void processChallenge(String challenge)
                          throws MalformedChallengeException

  Processes the Basic challenge.

  Specified by:
    `processChallenge` in interface `AuthScheme`
  Overrides:
    `processChallenge` in class `RFC2617Scheme`
  Parameters:
    `challenge` - the challenge string
  Throws:
    `MalformedChallengeException` - is thrown if the authentication challenge is malformed
  Since:
    3.0

### isComplete

    public boolean isComplete()

  Tests if the Basic authentication process has been completed.

  Returns:
    `true` if Basic authorization has been processed, `false` otherwise.
  Since:
    3.0

### authenticate

    public String authenticate(Credentials credentials,
                               String method,
                               String uri)
                        throws AuthenticationException

  Deprecated. Use `authenticate(Credentials, HttpMethod)`

  Produces basic authorization string for the given set of `Credentials`.

  Parameters:
    `credentials` - The set of credentials to be used for athentication
    `method` - Method name is ignored by the basic authentication scheme
    `uri` - URI is ignored by the basic authentication scheme
  Returns:
    a basic authorization string
  Throws:
    `InvalidCredentialsException` - if authentication credentials are not valid or not applicable for this authentication scheme
    `AuthenticationException` - if authorization string cannot be generated due to an authentication failure
  See Also:
    `HttpMethod.getName()`, `HttpMethod.getPath()`

### isConnectionBased

    public boolean isConnectionBased()

  Returns `false`. Basic authentication scheme is request based.

  Returns:
    `false`.
  Since:
    3.0

### authenticate

    public String authenticate(Credentials credentials,
                               HttpMethod method)
                        throws AuthenticationException

  Produces basic authorization string for the given set of `Credentials`.

  Parameters:
    `credentials` - The set of credentials to be used for athentication
    `method` - The method being authenticated
  Returns:
    a basic authorization string
  Throws:
    `InvalidCredentialsException` - if authentication credentials are not valid or not applicable for this authentication scheme
    `AuthenticationException` - if authorization string cannot be generated due to an authentication failure
  Since:
    3.0

### authenticate

    public static String authenticate(UsernamePasswordCredentials credentials)

  Deprecated. Use `authenticate(UsernamePasswordCredentials, String)` Returns a basic `Authorization` header value for the given `UsernamePasswordCredentials`.

  Parameters:
    `credentials` - The credentials to encode.
  Returns:
    a basic authorization string

### authenticate

    public static String authenticate(UsernamePasswordCredentials credentials,
                                      String charset)

  Returns a basic `Authorization` header value for the given `UsernamePasswordCredentials` and charset.

  Parameters:
    `credentials` - The credentials to encode.
    `charset` - The charset to use for encoding the credentials
  Returns:
    a basic authorization string
  Since:
    3.0

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