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편집 파일: handler.cpython-39.opt-1.pyc
a װ_YD � @ s� d dl Z d dlmZmZ d dlmZ d dlmZ d dlm Z d dl m Z d dl m Z mZ d dlmZmZ d dlZe�d d � d d lmZ e �e�Zg d �ZG d d� de�ZG dd� ded�Z G dd� de �Z dS )� N)�ABCMeta�abstractmethod)�partial)� ErrorMapper)�Signal)�get_xml)�DBusSpecification�DBusSpecificationError)� get_variant�unwrap_variant�Gioz2.0)r )� GLibServer�AbstractServerObjectHandler�ServerObjectHandlerc @ s\ e Zd ZdZeddd��Zeddd��Zedd � �Zed d � �Zed d � �Z edd� �Z dS )r z0The low-level DBus server library based on GLib.Nc C s |� |||||� dS )zEmit a DBus signal.N)� emit_signal)�cls� connection� object_path�interface_name� signal_name� parametersZ destination� r �9/usr/lib/python3.9/site-packages/dasbus/server/handler.pyr / s �zGLibServer.emit_signalr c C sf t j�|�}t| j||fd�}g }|js0td��|jD ] } |�|| |dd�} |�| � q6t| j ||�S )zRegister an object on DBus.)� user_dataz$No DBus interfaces for registration.N) r Z DBusNodeInfoZ new_for_xmlr �_object_callbackZ interfacesr �register_object�append�_unregister_object) r r r Z object_xml�callback� callback_argsZ node_infoZmethod_call_closure� registrationsZinterface_info�registration_idr r r r ; s4 ��� � �zGLibServer.register_objectc C s |D ]}|� |� qdS )z Unregister an object from DBus.N)Zunregister_object)r r r r! r r r r ] s z GLibServer._unregister_objectc C s" |\} } | ||||g| �R � d S )Nr ) r r Zsenderr r � method_namer � invocationr r r r r r r c s ��zGLibServer._object_callbackc C s |� ||� dS )z�Set the error of the DBus call. :param invocation: an invocation of a DBus call :param error_name: a DBus name of the error :param error_message: an error message N)Zreturn_dbus_error)r r# � error_nameZ error_messager r r �set_call_errors s zGLibServer.set_call_errorc C s& d}|durt ||f�}|�|� dS )z�Set the reply of the DBus call. :param invocation: an invocation of a DBus call :param out_type: a type of the reply :param out_value: a value of the reply N)r Z return_value)r r# �out_typeZ out_valueZ reply_valuer r r �set_call_reply} s zGLibServer.set_call_reply)N)r ) �__name__� __module__� __qualname__�__doc__� classmethodr r r r r% r' r r r r r , s � � ! r c @ s� e Zd ZdZg d�Zdd� Zedd� �Zdd� Ze d d � �Z e d d � �Z e d d� �Z e dd� �Z e dd� �Zdd� Zdd� Zdd� Zdd� Ze dd � �Zd S ) r z+The abstract handler of a published object.�� _message_bus� _object_path�_object�_specificationc C s || _ || _|| _d| _dS )z�Create a new handler. :param message_bus: a message bus :param object_path: a DBus path of the object :param obj: a Python instance of the object Nr- )�self� message_busr �objr r r �__init__� s z$AbstractServerObjectHandler.__init__c C s | j s| �� | _ | j S )zDBus specification.)r1 �_get_specification�r2 r r r � specification� s z)AbstractServerObjectHandler.specificationc C s t �| �� �S )zKGet the DBus specification. :return: a DBus specification )r Zfrom_xml�_get_xml_specificationr7 r r r r6 � s �z.AbstractServerObjectHandler._get_specificationc C s dS )�IGet the XML specification. :return: a XML specification � r r7 r r r r9 � s z2AbstractServerObjectHandler._get_xml_specificationc C s dS )z�Connect the object to DBus. 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Nr r7 r r r �disconnect_object� s z-AbstractServerObjectHandler.disconnect_objectc C s dS )z�Connect a DBus signal. :param interface_name: a DBus interface name :param signal_name: a DBus signal name Nr �r2 r r r r r �_connect_signal� s z+AbstractServerObjectHandler._connect_signalc G s dS )z�Handle a DBus signal. :param interface_name: a DBus interface name :param signal_name: a DBus name of the signal :param parameters: a signal parameters Nr )r2 r r r r r r � _emit_signal� s z(AbstractServerObjectHandler._emit_signalc G s | � ||�}||� S )z�Handle a DBus call. :param interface_name: a name of the interface :param method_name: a name of the called method :param parameters: parameters of the call :return: a result of the DBus call )� _find_handler)r2 r r" r �handlerr r r � _handle_call� s z(AbstractServerObjectHandler._handle_callc C s | j �||�S )z�Find a specification of the DBus member. :param interface_name: a name of the interface :param member_name: a name of the member :return: a specification of the member )r8 Z get_member�r2 r � member_namer r r �_find_member_spec� s �z-AbstractServerObjectHandler._find_member_specc C s0 | � ||�p| �||�}|s,td�||���|S )z�Find a handler of a DBus member. :param interface_name: a name of the interface :param member_name: a name of the method :return: a handler z The member {}.{} has no handler.)�_find_object_handler�_find_default_handler�AttributeError�format)r2 r rE rB r r r rA � s ��z)AbstractServerObjectHandler._find_handlerc C s t | j|d�S )ae Get an object handler of a DBus call. By default, DBus interfaces with members of the same name are not supported, so the given interface name is not used to find the object handler. :param interface_name: a name of the interface. :param member_name: a name of the member :return: a handler or None N)�getattrr0 rD r r r rG s z0AbstractServerObjectHandler._find_object_handlerc C s dS )��Find a default handler of a DBus call. :param interface_name: a name of the interface :param member_name: a name of the member :return: a handler or None Nr rD r r r rH s z1AbstractServerObjectHandler._find_default_handlerN)r( r) r* r+ � __slots__r5 �propertyr8 r6 r r9 r< r= r? r@ rC rF rA rG rH r r r r r � s, r )� metaclassc s� e Zd ZdZg d�Zdeef� fdd� Zdd� Zdd � Z d d � Z d d � Z dd� Z dd� Z dd� Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd d!� Zd"d#� Zd$d%� Zed&d'� �Z� ZS )(r z+The handler of an object published on DBus.)�_server�_signal_factory� _error_mapper�_registrationsNc s2 t � �|||� || _|| _|p$t� | _g | _dS )aA Create a new handler. :param message_bus: a message bus :param object_path: a DBus path of the object :param obj: a Python instance of the object :param error_mapper: a DBus error mapper :param server: a DBus server library :param signal_factory: a signal factory N)�superr5 rP rQ r rR rS )r2 r3 r r4 Z error_mapperZserverZsignal_factory�� __class__r r r5 * s z ServerObjectHandler.__init__c C s t | j�S )r: )r r0 r7 r r r r9 ; s z*ServerObjectHandler._get_xml_specificationc C s | � � | �� dS )zConnect the object to DBus.N)�_register_object�_connect_signalsr7 r r r r< B s z"ServerObjectHandler.connect_objectc C s | j r| j �� }|� q dS )z Disconnect the object from DBus.N)rS �pop)r2 r r r r r= G s z%ServerObjectHandler.disconnect_objectc C s. | j �| jj| j| �� | j�}| j�|� dS )zLRegister to DBus calls. :return: an unregistering callback N) rP r r. r r/ r9 �_method_callbackrS r )r2 Z unregisterr r r rW M s �z$ServerObjectHandler._register_objectc C s0 | j jD ]"}t|tj�sq| �|j|j� qdS )zConnect all DBus signals.N)r8 �members� isinstancer r r? r �name)r2 �memberr r r rX [ s �z$ServerObjectHandler._connect_signalsc C s> | � ||�}| �||�}|�|� t|j|�}| j�|� dS )z�Connect a DBus signal. :param interface_name: a DBus interface name :param signal_name: a DBus signal name :return: a disconnecting callback N)� _find_emitterrA Zconnectr � disconnectrS r )r2 r r r �signalr` r r r r? f s z#ServerObjectHandler._connect_signalc C s t | j||�S )z�Find an emitter of a DBus signal. :param interface_name: a DBus interface name :param signal_name: a DBus signal name :return: a callback )r r@ r> r r r r_ t s z!ServerObjectHandler._find_emitterc G sH | � ||�}|sd}|jdur*t|j|�}| j�| jj| j|||� dS )z�Handle a DBus signal. :param interface_name: a DBus interface name :param signal_name: a DBus signal name :param parameters: a signal parameters N)rF �typer rP r r. r r/ )r2 r r r r^ r r r r@ } s �z ServerObjectHandler._emit_signalc C sp z6| � ||�}| j||gt|��R � }| �|||� W n4 tyj } z | �||||� W Y d}~n d}~0 0 dS )z�The callback for a DBus call. :param invocation: an invocation of the DBus call :param interface_name: a DBus interface name :param method_name: a DBus method name :param parameters: a variant of DBus arguments N)rF rC r �_handle_method_result� Exception�_handle_method_error)r2 r# r r" r r^ �result�errorr r r rZ � s. �����z$ServerObjectHandler._method_callbackc C s: t jd||dd� | j�t|��}| j�||t|�� dS )a Handle an error of a DBus call. :param invocation: an invocation of the DBus call :param interface_name: a DBus interface name :param method_name: a DBus method name :param error: an exception raised during the call z,The call %s.%s has failed with an exception:T)�exc_infoN)�logZwarningrR Zget_error_namerb rP r% �str)r2 r# r r" rg r$ r r r re � s ���z(ServerObjectHandler._handle_method_errorc C s | j �||j|� dS )z�Handle a result of a DBus call. :param invocation: an invocation of a DBus call :param method_spec: a method specification :param method_reply: a method reply N)rP r' r& )r2 r# Z method_specZ method_replyr r r rc � s �z)ServerObjectHandler._handle_method_resultc C sD |dkr@|dkr| j S |dkr$| jS |dkr2| jS |dkr@| jS dS )rL z org.freedesktop.DBus.PropertiesZGet�SetZGetAllZPropertiesChangedN)� _get_property� _set_property�_get_all_properties�_properties_changedrD r r r rH � s z)ServerObjectHandler._find_default_handlerc C s: | � ||�}|js"td�||���t| j|�}t|j|�S )z�The default handler of the Get method. :param interface_name: an interface name :param property_name: a property name :return: a variant with a property value z#The property {}.{} is not readable.)rF �readablerI rJ rK r0 r rb )r2 r � property_namer^ �valuer r r rl � s � z!ServerObjectHandler._get_propertyc C s8 | � ||�}|js"td�||���t| j|t|�� dS )z�The default handler of the Set method. :param interface_name: an interface name :param property_name: a property name :param property_value: a variant with a property value z#The property {}.{} is not writable.N)rF �writablerI rJ �setattrr0 r )r2 r rq Zproperty_valuer^ r r r rm � s �z!ServerObjectHandler._set_propertyc s � fdd�| j jD �S )z�Find all properties of the given interface. :param interface_name: an interface name :return: a list of property names c s. g | ]&}t |tj�r|j� kr|jr|j�qS r )r\ r ZPropertyr rp r] )�.0r^ �r r r � <listcomp> s �z<ServerObjectHandler._find_all_properties.<locals>.<listcomp>)r8 r[ �r2 r r rv r �_find_all_properties s �z(ServerObjectHandler._find_all_propertiesc s � �fdd��� � �D �S )z�The default handler of the GetAll method. :param interface_name: an interface name :return: a dictionary of properties c s i | ]}|�� � |��qS r )rl )ru rq �r r2 r r � <dictcomp> s �z;ServerObjectHandler._get_all_properties.<locals>.<dictcomp>)ry rx r rz r rn s �z'ServerObjectHandler._get_all_propertiesc C s | � � S )zXThe default handler of the PropertiesChanged method. :return: a signal )rQ r7 r r r ro # s z'ServerObjectHandler._properties_changed)r( r) r* r+ rM r r r5 r9 r< r= rW rX r? r_ r@ rZ re rc rH rl rm ry rn rN ro � __classcell__r r rU r r s. � r ) Zlogging�abcr r � functoolsr Z dasbus.errorr Z dasbus.signalr Zdasbus.server.interfacer Zdasbus.specificationr r Z dasbus.typingr r ZgiZrequire_versionZ gi.repositoryr Z getLoggerr( ri �__all__�objectr r r r r r r �<module> s a