Package org.gnome.gio

Class Credentials

java.lang.Object

io.github.jwharm.javagi.base.ProxyInstance

org.gnome.gobject.TypeInstance

org.gnome.gobject.GObject

org.gnome.gio.Credentials

All Implemented Interfaces:

Proxy

@Generated("io.github.jwharm.JavaGI")
public class Credentials
extends GObject

The GCredentials type is a reference-counted wrapper for native credentials.

The information in GCredentials is typically used for identifying, authenticating and authorizing other processes.

Some operating systems supports looking up the credentials of the remote peer of a communication endpoint - see e.g. Socket.getCredentials().

Some operating systems supports securely sending and receiving credentials over a Unix Domain Socket, see UnixCredentialsMessage, UnixConnection.sendCredentials(org.gnome.gio.Cancellable) and UnixConnection.receiveCredentials(org.gnome.gio.Cancellable) for details.

On Linux, the native credential type is a struct ucred - see the unix(7) man page) for details. This corresponds to G_CREDENTIALS_TYPE_LINUX_UCRED.

On Apple operating systems (including iOS, tvOS, and macOS), the native credential type is a struct xucred. This corresponds to G_CREDENTIALS_TYPE_APPLE_XUCRED.

On FreeBSD, Debian GNU/kFreeBSD, and GNU/Hurd, the native credential type is a struct cmsgcred. This corresponds to G_CREDENTIALS_TYPE_FREEBSD_CMSGCRED.

On NetBSD, the native credential type is a struct unpcbid. This corresponds to G_CREDENTIALS_TYPE_NETBSD_UNPCBID.

On OpenBSD, the native credential type is a struct sockpeercred. This corresponds to G_CREDENTIALS_TYPE_OPENBSD_SOCKPEERCRED.

On Solaris (including OpenSolaris and its derivatives), the native credential type is a ucred_t. This corresponds to G_CREDENTIALS_TYPE_SOLARIS_UCRED.

Since GLib 2.72, on Windows, the native credentials may contain the PID of a process. This corresponds to G_CREDENTIALS_TYPE_WIN32_PID.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Credentials.Builder<B extends Credentials.Builder<B>>	Inner class implementing a builder pattern to construct a GObject with properties.
static class	Credentials.CredentialsClass	Class structure for GCredentials.

Nested classes/interfaces inherited from class org.gnome.gobject.GObject

GObject.NotifyCallback, GObject.ObjectClass

Constructor Summary

Constructors

Constructor	Description
Credentials()	Creates a new GCredentials object with credentials matching the the current process.
Credentials(MemorySegment address)	Create a Credentials proxy instance for the provided memory address.

Method Summary

Modifier and Type	Method	Description
protected Credentials	asParent()	Returns this instance as if it were its parent type.
static Credentials.Builder<? extends Credentials.Builder>	builder()	A Credentials.Builder object constructs a Credentials with the specified properties.
MemorySegment	getNative(CredentialsType nativeType)	Gets a pointer to native credentials of type nativeType from this Credentials.
static Type	getType()	Get the GType of the Credentials class
int	getUnixPid()	Tries to get the UNIX process identifier from this Credentials.
int	getUnixUser()	Tries to get the UNIX user identifier from this Credentials.
boolean	isSameUser(Credentials otherCredentials)	Checks if this Credentials and otherCredentials is the same user.
void	setNative(CredentialsType nativeType, MemorySegment native_)	Copies the native credentials of type nativeType from native_ into this Credentials.
boolean	setUnixUser(int uid)	Tries to set the UNIX user identifier on this Credentials.
String	toString()	Creates a human-readable textual representation of this Credentials that can be used in logging and debug messages.

Methods inherited from class org.gnome.gobject.GObject

addToggleRef, addWeakPointer, bindProperty, bindProperty, bindProperty, bindPropertyFull, bindPropertyFull, bindPropertyWithClosures, bindPropertyWithClosures, compatControl, connect, connect, connect, constructed, disconnect, dispatchPropertiesChanged, dispose, dupData, dupQdata, emit, emitNotify, finalize_, forceFloating, freezeNotify, get, getData, getMemoryLayout, getProperty, getProperty, getProperty, getQdata, getv, interfaceFindProperty, interfaceInstallProperty, interfaceListProperties, isFloating, newInstance, newInstance, newv, notify, notify, notifyByPspec, onNotify, ref, refSink, removeToggleRef, removeWeakPointer, replaceData, replaceQdata, runDispose, set, setData, setDataFull, setProperty, setProperty, setProperty, setQdata, setQdataFull, setv, stealData, stealQdata, takeRef, thawNotify, unref, watchClosure, weakRef, weakUnref, withProperties

Methods inherited from class org.gnome.gobject.TypeInstance

callParent, callParent, getPrivate, readGClass, writeGClass

Methods inherited from class io.github.jwharm.javagi.base.ProxyInstance

equals, handle, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

Credentials

public Credentials(MemorySegment address)

Create a Credentials proxy instance for the provided memory address.

Parameters:

address - the memory address of the native object

Credentials

public Credentials()

Creates a new GCredentials object with credentials matching the the current process.

Method Details

getType

public static Type getType()

Get the GType of the Credentials class

Returns:

the GType

asParent

protected Credentials asParent()

Returns this instance as if it were its parent type. This is mostly synonymous to the Java super keyword, but will set the native typeclass function pointers to the parent type. When overriding a native virtual method in Java, "chaining up" with super.methodName() doesn't work, because it invokes the overridden function pointer again. To chain up, call asParent().methodName(). This will call the native function pointer of this virtual method in the typeclass of the parent type.

Overrides:

asParent in class GObject

getNative

public MemorySegment getNative(CredentialsType nativeType)

Gets a pointer to native credentials of type nativeType from this Credentials.

It is a programming error (which will cause a warning to be logged) to use this method if there is no GCredentials support for the OS or if nativeType isn't supported by the OS.

Parameters:

nativeType - The type of native credentials to get.

Returns:

The pointer to native credentials or null if there is no GCredentials support for the OS or if nativeType isn't supported by the OS. Do not free the returned data, it is owned by this Credentials.

getUnixPid

public int getUnixPid()
               throws GErrorException

Tries to get the UNIX process identifier from this Credentials. This method is only available on UNIX platforms.

This operation can fail if GCredentials is not supported on the OS or if the native credentials type does not contain information about the UNIX process ID.

Returns:

The UNIX process ID, or -1 if error is set.

Throws:

GErrorException - see GError

getUnixUser

public int getUnixUser()
                throws GErrorException

Tries to get the UNIX user identifier from this Credentials. This method is only available on UNIX platforms.

This operation can fail if GCredentials is not supported on the OS or if the native credentials type does not contain information about the UNIX user.

Returns:

The UNIX user identifier or -1 if error is set.

Throws:

GErrorException - see GError

isSameUser

public boolean isSameUser(Credentials otherCredentials)
                   throws GErrorException

Checks if this Credentials and otherCredentials is the same user.

This operation can fail if GCredentials is not supported on the the OS.

Parameters:

otherCredentials - A GCredentials.

Returns:

true if this Credentials and otherCredentials has the same user, false otherwise or if error is set.

Throws:

GErrorException - see GError

setNative

public void setNative(CredentialsType nativeType,
 MemorySegment native_)

Copies the native credentials of type nativeType from native_ into this Credentials.

It is a programming error (which will cause a warning to be logged) to use this method if there is no GCredentials support for the OS or if nativeType isn't supported by the OS.

Parameters:

nativeType - The type of native credentials to set.

native_ - A pointer to native credentials.

setUnixUser

public boolean setUnixUser(int uid)
                    throws GErrorException

Tries to set the UNIX user identifier on this Credentials. This method is only available on UNIX platforms.

This operation can fail if GCredentials is not supported on the OS or if the native credentials type does not contain information about the UNIX user. It can also fail if the OS does not allow the use of "spoofed" credentials.

Parameters:

uid - The UNIX user identifier to set.

Returns:

true if uid was set, false if error is set.

Throws:

GErrorException - see GError

toString

public String toString()

Creates a human-readable textual representation of this Credentials that can be used in logging and debug messages. The format of the returned string may change in future GLib release.

Overrides:

toString in class Object

Returns:

A string that should be freed with g_free().

builder

public static Credentials.Builder<? extends Credentials.Builder> builder()

A Credentials.Builder object constructs a Credentials with the specified properties. Use the various set...() methods to set properties, and finish construction with Credentials.Builder.build().