Gio::Proxy Class Reference
Portable Network I/O Functionality

Proxy - Interface for proxy handling. More...

`#include <giomm/proxy.h>`

Inheritance diagram for Gio::Proxy:
[legend]

## Public Member Functions

| Proxy (Proxy&& src) noexcept
Proxy& | operator= (Proxy&& src) noexcept
| ~Proxy () noexcept override
GProxy* | gobj ()
| Provides access to the underlying C GObject. More...
const GProxy* | gobj () const
| Provides access to the underlying C GObject. More...
Glib::RefPtr< IOStream > | connect (const Glib::RefPtr< IOStream >& connection, const Glib::RefPtr< const ProxyAddress >& proxy_address, const Glib::RefPtr< Cancellable >& cancellable)
| Given connection to communicate with a proxy (eg, a SocketConnection that is connected to the proxy server), this does the necessary handshake to connect to proxy_address, and if required, wraps the IOStream to handle proxy payload. More...
void | connect_async (const Glib::RefPtr< IOStream >& connection, const Glib::RefPtr< const ProxyAddress >& proxy_address, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable)
| An Asynchronous version of connect(). More...
void | connect_async (const Glib::RefPtr< IOStream >& connection, const Glib::RefPtr< const ProxyAddress >& proxy_address, const SlotAsyncReady& slot)
| An Asynchronous version of connect(). More...
Glib::RefPtr< IOStream > | connect_finish (const Glib::RefPtr< AsyncResult >& result)
| See g_proxy_connect(). More...
bool | supports_hostname () const
| Some proxy protocols expect to be passed a hostname, which they will resolve to an IP address themselves. More...
Public Member Functions inherited from Glib::Interface
| Interface ()
| A Default constructor. More...
| Interface (Interface&& src) noexcept
Interface& | operator= (Interface&& src) noexcept
| Interface (const Glib::Interface_Class& interface_class)
| Called by constructors of derived classes. More...
| Interface (GObject* castitem)
| Called by constructors of derived classes. More...
| ~Interface () noexcept override
| Interface (const Interface&)=delete
Interface& | operator= (const Interface&)=delete
GObject* | gobj ()
const GObject* | gobj () const
Public Member Functions inherited from Glib::ObjectBase
| ObjectBase (const ObjectBase&)=delete
ObjectBase& | operator= (const ObjectBase&)=delete
void | set_property_value (const Glib::ustring& property_name, const Glib::ValueBase& value)
| You probably want to use a specific property_*() accessor method instead. More...
void | get_property_value (const Glib::ustring& property_name, Glib::ValueBase& value) const
| You probably want to use a specific property_*() accessor method instead. More...
template<class PropertyType >
void | set_property (const Glib::ustring& property_name, const PropertyType& value)
| You probably want to use a specific property_*() accessor method instead. More...
template<class PropertyType >
void | get_property (const Glib::ustring& property_name, PropertyType& value) const
| You probably want to use a specific property_*() accessor method instead. More...
void | connect_property_changed (const Glib::ustring& property_name, const sigc::slot< void >& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
void | connect_property_changed (const Glib::ustring& property_name, sigc::slot< void >&& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
sigc::connection | connect_property_changed_with_return (const Glib::ustring& property_name, const sigc::slot< void >& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
sigc::connection | connect_property_changed_with_return (const Glib::ustring& property_name, sigc::slot< void >&& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
void | freeze_notify ()
| Increases the freeze count on object. More...
void | thaw_notify ()
| Reverts the effect of a previous call to freeze_notify(). More...
virtual void | reference () const
| Increment the reference count for this object. More...
virtual void | unreference () const
| Decrement the reference count for this object. More...
GObject* | gobj ()
| Provides access to the underlying C GObject. More...
const GObject* | gobj () const
| Provides access to the underlying C GObject. More...
GObject* | gobj_copy () const
| Give a ref-ed copy to someone. Use for direct struct access. More...
Public Member Functions inherited from sigc::trackable
| trackable () noexcept
| trackable (const trackable &src) noexcept
| trackable (trackable &&src)
| ~trackable ()
void | add_destroy_notify_callback (void *data, func_destroy_notify func) const
void | notify_callbacks ()
trackable & | operator= (const trackable &src)
trackable & | operator= (trackable &&src)
void | remove_destroy_notify_callback (void *data) const

## Static Public Member Functions

static void | add_interface (GType gtype_implementer)
static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system. More...
static Glib::RefPtr< Proxy > | get_default_for_protocol (const Glib::ustring& protocol)
| Find the `gio-proxy` extension point for a proxy implementation that supports the specified protocol. More...

## Protected Member Functions

| Proxy ()
| You should derive from this class to use it. More...
Protected Member Functions inherited from Glib::ObjectBase
| ObjectBase ()
| This default constructor is called implicitly from the constructor of user-derived classes, even if, for instance, Gtk::Button calls a different ObjectBase constructor. More...
| ObjectBase (const char* custom_type_name)
| A derived constructor always overrides this choice. More...
| ObjectBase (const std::type_info& custom_type_info)
| This constructor is a special feature to allow creation of derived types on the fly, without having to use g_object_new() manually. More...
| ObjectBase (ObjectBase&& src) noexcept
ObjectBase& | operator= (ObjectBase&& src) noexcept
virtual | ~ObjectBase () noexcept=0
void | initialize (GObject* castitem)
void | initialize_move (GObject* castitem, Glib::ObjectBase* previous_wrapper)

## Related Functions

(Note that these are not member functions.)
Glib::RefPtr< Gio::Proxy > | wrap (GProxy* object, bool take_copy=false)
| A Glib::wrap() method for this object. More...

## Additional Inherited Members

Public Types inherited from sigc::trackable
typedef internal::func_destroy_notify | func_destroy_notify

## Detailed Description

Proxy - Interface for proxy handling.

A Proxy handles connecting to a remote host via a given type of proxy server. It is implemented by the 'gio-proxy' extension point. The extensions are named after their proxy protocol name. As an example, a SOCKS5 proxy implementation can be retrieved with the name 'socks5' using the C API's function g_io_extension_point_get_extension_by_name().

Since glibmm 2.28:

## Constructor & Destructor Documentation

Gio::Proxy::Proxy | ( |  | ) |

protected

You should derive from this class to use it.

Gio::Proxy::Proxy | ( | Proxy&& | src | ) |

noexcept

Gio::Proxy::~Proxy | ( |  | ) |

overridenoexcept

## Member Function Documentation

static void Gio::Proxy::add_interface | ( | GType | gtype_implementer | ) |

static

Glib::RefPtr<IOStream> Gio::Proxy::connect | ( | const Glib::RefPtr< IOStream >& | connection,
|  | const Glib::RefPtr< const ProxyAddress >& | proxy_address,
|  | const Glib::RefPtr< Cancellable >& | cancellable
| ) |  |

Given connection to communicate with a proxy (eg, a SocketConnection that is connected to the proxy server), this does the necessary handshake to connect to proxy_address, and if required, wraps the IOStream to handle proxy payload.

Since glibmm 2.26:

Parameters

  connection | A IOStream.
  proxy_address | A ProxyAddress.
  cancellable | A Cancellable.

Returns
  A IOStream that will replace connection. This might be the same as connection, in which case a reference will be added.

Exceptions

  Glib::Error |

void Gio::Proxy::connect_async | ( | const Glib::RefPtr< IOStream >& | connection,
|  | const Glib::RefPtr< const ProxyAddress >& | proxy_address,
|  | const SlotAsyncReady& | slot,
|  | const Glib::RefPtr< Cancellable >& | cancellable
| ) |  |

An Asynchronous version of connect().

void Gio::Proxy::connect_async | ( | const Glib::RefPtr< IOStream >& | connection,
|  | const Glib::RefPtr< const ProxyAddress >& | proxy_address,
|  | const SlotAsyncReady& | slot
| ) |  |

An Asynchronous version of connect().

Glib::RefPtr<IOStream> Gio::Proxy::connect_finish | ( | const Glib::RefPtr< AsyncResult >& | result | ) |

See g_proxy_connect().

Since glibmm 2.26:

Parameters

  result | A AsyncResult.

Returns
  A IOStream.

Exceptions

  Glib::Error |

static Glib::RefPtr<Proxy> Gio::Proxy::get_default_for_protocol | ( | const Glib::ustring& | protocol | ) |

static

Find the `gio-proxy` extension point for a proxy implementation that supports the specified protocol.

Since glibmm 2.26:

Parameters

  protocol | The proxy protocol name (e.g. http, socks, etc).

Returns
  Return a Proxy or `nullptr` if protocol is not supported.

static GType Gio::Proxy::get_type | ( |  | ) |

static

Get the GType for this class, for use with the underlying GObject type system.

GProxy* Gio::Proxy::gobj | ( |  | ) |

inline

Provides access to the underlying C GObject.

const GProxy* Gio::Proxy::gobj | ( |  | ) | const

inline

Provides access to the underlying C GObject.

Proxy& Gio::Proxy::operator= | ( | Proxy&& | src | ) |

noexcept

bool Gio::Proxy::supports_hostname | ( |  | ) | const

Some proxy protocols expect to be passed a hostname, which they will resolve to an IP address themselves.

Others, like SOCKS4, do not allow this. This function will return `false` if proxy is implementing such a protocol. When `false` is returned, the caller should resolve the destination hostname first, and then pass a ProxyAddress containing the stringified IP address to g_proxy_connect() or g_proxy_connect_async().

Since glibmm 2.26:

Returns
  `true` if hostname resolution is supported.

## Friends And Related Function Documentation

Glib::RefPtr< Gio::Proxy > wrap | ( | GProxy * | object,
|  | bool | take_copy = `false`
| ) |  |

related

A Glib::wrap() method for this object.

Parameters

  object | The C instance.
  take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns
  A C++ instance that wraps this C instance.