o U h.@sdZddlZddlmZddlmZddlZddlmZddl Z ddl m Z m Z ddl Z ddlZddlmZddlmZmZmZmZdd lmZmZdd lmZdd lmZmZdd lmZm Z dd l!m"Z"ddl#m$Z$m%Z%m&Z&gdZ'GdddZ(ddZ)ddZ*GdddZ+Gddde+Z,GdddeZ-ddZ.d*d!e j fd"d#Z/ %d+d!e,fd&d'Z0e1d(kre0Z2e3d)e2j4dSdS),z'Synchronous IO wrappers around jeepney N)deque) ECONNRESET)count)DefaultSelector EVENT_READ)Optional)ParserMessage MessageType HeaderFields) AuthenticatorBEGIN)get_bus)FileDescriptor fds_buf_size) ProxyBase unwrap_msg) message_bus)MessageFilters FilterHandlecheck_replyable)open_dbus_connectionDBusConnectionProxyc@s4eZdZddZddZddZddZd d Zd S) _FuturecCs d|_dSN_resultselfr!g/var/www/html/construction_image-detection-poc/venv/lib/python3.10/site-packages/jeepney/io/blocking.py__init__ z_Future.__init__cCs t|jSr)boolrrr!r!r"done!r$z _Future.donecCd|f|_dSNFr)r exceptionr!r!r" set_exception$z_Future.set_exceptioncCr')NTr)r resultr!r!r" set_result'r+z_Future.set_resultcCs|j\}}|r |S|rr)r successvaluer!r!r"r,*s z_Future.resultN)__name__ __module__ __qualname__r#r&r*r-r,r!r!r!r"rs  rcCs|dur t|SdSr)time monotonictimeoutr!r!r"timeout_to_deadline1s r7cCs|dur t|tdSdS)Ng)maxr3r4)deadliner!r!r"deadline_to_timeout6sr:c@sxeZdZdZddejfddZddZdd Zd ed e e e j ffd d Z ddZ ddZdddZddZddZdS)DBusConnectionBasez8Connection machinery shared by this module and threadingFsockcCsB||_||_t|_tdd|_t|_|j|t |_ d|_ dS)Nr)start) r< enable_fdsrparserroutgoing_serialrselectorregisterr select_key unique_name)r r<r>r!r!r"r#>s  zDBusConnectionBase.__init__cCs|Srr!rr!r!r" __enter__GszDBusConnectionBase.__enter__cCs |dSr()close)r exc_typeexc_valexc_tbr!r!r"__exit__JszDBusConnectionBase.__exit__messagereturncCs<|dur t|j}|jrtdnd}|j||d}||fS)Ni)serialfds)nextr@r>array serialise)r rKrNrOdatar!r!r" _serialiseNs  zDBusConnectionBase._serialisecCsD|j|gtjtj|fg}|t|kr |j||ddSdSr)r<sendmsgsocket SOL_SOCKET SCM_RIGHTSlensendall)r rSrO bytes_sentr!r!r"_send_with_fdsUs  z!DBusConnectionBase._send_with_fdscCs> |j}|dur |S|jt|d\}}|jj||dq)NTr5)rO)r?get_next_message_read_some_datar:add_data)r r9msgbrOr!r!r"_receive^s zDBusConnectionBase._receiveNcCsN|j|D]\}}||jkr$|jr|St|jdgfSqt)Ni) rAselectrCr>_read_with_fds unwrap_readr<recv TimeoutError)r r6keyevr!r!r"r^gs  z"DBusConnectionBase._read_some_datacCsT|j}|j|t\}}}}|ttdd@r!|tdt |t |fS)N MSG_CTRUNCrz&Unable to receive all file descriptors) r? bytes_desiredr<recvmsgrgetattrrVrF RuntimeErrorrer from_ancdata)r nbytesrSancdataflags_r!r!r"rdqs z!DBusConnectionBase._read_with_fdscCs|j|jdS)zClose the connectionN)rArFr<rr!r!r"rFys zDBusConnectionBase.closeFr)r0r1r2__doc__rVr#rErJr bytesrrQrTr\rbr^rdrFr!r!r!r"r;<s   r;cseZdZddejffdd ZddefddZeZdd d efd d Zdd d dZ dd ddZ dddde e fddZ dd d efddZZS)rFr<cs:t||t|_tt||_|j}|d|_dS)Nr) superr#r_filtersrr bus_proxyHellorD)r r<r> hello_reply __class__r!r"r#s   zDBusConnection.__init__NrKcCs4|||\}}|r|||dS|j|dS)z.Serialise and send a :class:`~.Message` objectN)rTr\r<rZ)r rKrNrSrOr!r!r"sendszDBusConnection.sendr5rLcCs|t|S)a+Return the next available message from the connection If the data is ready, this will return immediately, even if timeout<=0. Otherwise, it will wait for up to timeout seconds, or indefinitely if timeout is None. If no message comes in time, it raises TimeoutError. )rbr7)r r6r!r!r"receiveszDBusConnection.receivecCs.|j|d}|j|D]}|j|q dS)z\Receive one message and apply filters See :meth:`filter`. Returns nothing. r5N)rrxmatchesqueueappend)r r6r`filterr!r!r" recv_messagess zDBusConnection.recv_messagescCsxt|t|}t|j}|j||d |jt|d}|jj t j d}||kr,|S|j |D]}|j|q2q)zSend a message, wait for the reply and return it Filters are applied to other messages received before the reply - see :meth:`add_filter`. )rNTr5)rr7rPr@ send_messagerr:headerfieldsgetr reply_serialrxrrr)r rKr6r9rNmsg_inreply_torr!r!r"send_and_get_replys z!DBusConnection.send_and_get_replyr)rbufsizercCs |dur t|d}t|j||S)aCreate a filter for incoming messages Usage:: with conn.filter(rule) as matches: # matches is a deque containing matched messages matching_msg = conn.recv_until_filtered(matches) :param jeepney.MatchRule rule: Catch messages matching this rule :param collections.deque queue: Matched messages will be added to this :param int bufsize: If no deque is passed in, create one with this size N)maxlen)rrrx)r rulerrr!r!r"rs zDBusConnection.filtercCs8t|}t|dkr|jt|dt|dks |S)aZProcess incoming messages until one is filtered into queue Pops the message from queue and returns it, or raises TimeoutError if the optional timeout expires. Without a timeout, this is equivalent to:: while len(queue) == 0: conn.recv_messages() return queue.popleft() In the other I/O modules, there is no need for this, because messages are placed in queues by a separate task. :param collections.deque queue: A deque connected by :meth:`filter` :param float timeout: Maximum time to wait in seconds rr5)r7rYrr:popleft)r rr6r9r!r!r"recv_until_filtereds   z"DBusConnection.recv_until_filteredrtr)r0r1r2rVr#r r~rrrrrrrr __classcell__r!r!r|r"rs   rcs6eZdZdZddfdd ZddZdd ZZS) rajA blocking proxy for calling D-Bus methods You can call methods on the proxy object, such as ``bus_proxy.Hello()`` to make a method call over D-Bus and wait for a reply. It will either return a tuple of returned data, or raise :exc:`.DBusErrorResponse`. The methods available are defined by the message generator you wrap. You can set a time limit on a call by passing ``_timeout=`` in the method call, or set a default when creating the proxy. The ``_timeout`` argument is not passed to the message generator. All timeouts are in seconds, and :exc:`TimeoutErrror` is raised if it expires before a reply arrives. :param msggen: A message generator object :param ~blocking.DBusConnection connection: Connection to send and receive messages :param float timeout: Default seconds to wait for a reply, or None for no limit Nr5cst|||_||_dSr)rwr# _connection_timeout)r msggen connectionr6r|r!r"r#s  zProxy.__init__cCs4|jdurdnd|j}d|jd|j|dS)Nz , timeout=zProxy(z, ))r_msggenr)r extrar!r!r"__repr__szProxy.__repr__cstfdd}|S)NcsB|dj}|i|}|jjtjusJtjj||dS)Nrr5) poprr message_typer method_callrrr)argskwargsr6r`make_msgr r!r"inners z!Proxy._method_call..inner) functoolswraps)r rrr!rr" _method_callszProxy._method_call)r0r1r2rur#rrrr!r!r|r"rs rcCs|s tttt|S)zRaise ConnectionResetError from an empty read. Sometimes the socket raises an error itself, sometimes it gives no data. I haven't worked out when it behaves each way. )ConnectionResetErrorrosstrerror)rar!r!r"re sreF@rLc stjtjdt|fdd}zD|j|t|dd}ttdr4dgtjtjt dfgn d|D]}|j || t |jd q;|j tWn!tjyp}z td |d |d }~wd S) z=Create a socket and authenticate ready to send D-Bus messages)familycst||Sr) settimeoutr:)methrr9r<r!r"with_sock_deadlinesz'prep_socket..with_sock_deadlineF)r> inc_null_byte SCM_CREDSiizDid not authenticate in z secondsN)rVAF_UNIXr7connectr hasattrrUrWrrvr~rZfeedrerfr r6rFrgr)addrr>r6rauthrreq_dataer!rr" prep_sockets,       rSESSION?cCs$t|}t|||d}t||}|S)aConnect to a D-Bus message bus Pass ``enable_fds=True`` to allow sending & receiving file descriptors. An error will be raised if the bus does not allow this. For simplicity, it's advisable to leave this disabled unless you need it. D-Bus has an authentication step before sending or receiving messages. This takes < 1 ms in normal operation, but there is a timeout so that client code won't get stuck if the server doesn't reply. *auth_timeout* configures this timeout in seconds. r5)rrr)busr> auth_timeoutbus_addrr<connr!r!r"r:s r__main__z Unique name:)Fr)rFr)5rurQ collectionsrerrnorr itertoolsrr selectorsrrrVr3typingrjeepneyrr r r jeepney.authr r jeepney.busr jeepney.fdsrrjeepney.wrappersrrjeepney.bus_messagesrcommonrrr__all__rr7r:r;rrrerrr0rprintrDr!r!r!r"sF      Cd( %