class QAuthenticator#

The QAuthenticator class provides an authentication object. More

Synopsis#

Methods#

Note

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Detailed Description#

The QAuthenticator class is usually used in the authenticationRequired() and proxyAuthenticationRequired() signals of QNetworkAccessManager and QAbstractSocket . The class provides a way to pass back the required authentication information to the socket when accessing services that require authentication.

QAuthenticator supports the following authentication methods:

  • Basic

  • NTLM version 2

  • Digest-MD5

  • SPNEGO/Negotiate

Options#

In addition to the username and password required for authentication, a QAuthenticator object can also contain additional options. The options() function can be used to query incoming options sent by the server; the setOption() function can be used to set outgoing options, to be processed by the authenticator calculation. The options accepted and provided depend on the authentication type (see method()).

The following tables list known incoming options as well as accepted outgoing options. The list of incoming options is not exhaustive, since servers may include additional information at any time. The list of outgoing options is exhaustive, however, and no unknown options will be treated or sent back to the server.

Basic#

Option

Direction

Type

Description

realm

Incoming

QString

Contains the realm of the authentication, the same as realm()

The Basic authentication mechanism supports no outgoing options.

NTLM version 2#

The NTLM authentication mechanism currently supports no incoming or outgoing options. On Windows, if no user has been set, domain\user credentials will be searched for on the local system to enable Single-Sign-On functionality.

Digest-MD5#

Option

Direction

Type

Description

realm

Incoming

QString

Contains the realm of the authentication, the same as realm()

The Digest-MD5 authentication mechanism supports no outgoing options.

SPNEGO/Negotiate#

Option

Direction

Type

Description

spn

Outgoing

QString

Provides a custom SPN.

This authentication mechanism currently supports no incoming options.

The spn property is used on Windows clients when an SSPI library is used. If the property is not set, a default SPN will be used. The default SPN on Windows is HTTP/<hostname>.

Other operating systems use GSSAPI libraries. For that it is expected that KDC is set up, and the credentials can be fetched from it. The backend always uses HTTPS@<hostname> as an SPN.

See also

QSslSocket

__init__()#

Constructs an empty authentication object.

__init__(other)
Parameters:

otherQAuthenticator

Constructs a copy of other.

isNull()#
Return type:

bool

Returns true if the object has not been initialized. Returns false if non-const member functions have been called, or the content was constructed or copied from another initialized QAuthenticator object.

__ne__(other)#
Parameters:

otherQAuthenticator

Return type:

bool

Returns true if this authenticator is different from other; otherwise returns false.

__eq__(other)#
Parameters:

otherQAuthenticator

Return type:

bool

Returns true if this authenticator is identical to other; otherwise returns false.

option(opt)#
Parameters:

opt – str

Return type:

object

Returns the value related to option opt if it was set by the server. See the Options section for more information on incoming options. If option opt isn’t found, an invalid QVariant will be returned.

See also

setOption() options() QAuthenticator options

options()#
Return type:

Dictionary with keys of type .QString and values of type QVariant.

Returns all incoming options set in this QAuthenticator object by parsing the server reply. See the Options section for more information on incoming options.

See also

option() QAuthenticator options

password()#
Return type:

str

Returns the password used for authentication.

See also

setPassword()

realm()#
Return type:

str

Returns the realm requiring authentication.

setOption(opt, value)#
Parameters:
  • opt – str

  • value – object

Sets the outgoing option opt to value value. See the Options section for more information on outgoing options.

See also

options() option() QAuthenticator options

setPassword(password)#
Parameters:

password – str

Sets the password used for authentication.

setRealm(realm)#
Parameters:

realm – str

setUser(user)#
Parameters:

user – str

Sets the user used for authentication.

user()#
Return type:

str

Returns the user used for authentication.

See also

setUser()