B X<˳H@sdZddlZddlZddlZddlZddlZddlZddlZddlZddl Z ddl Z ddl Z ddl Z ddl Z ddlZddlZddZddZd*ddZGd d d ejZd Zd ZGd dde jZiZedZedZGdddeZGdddeZddZ GdddeZ!Gddde j"eZ#GdddeZ$GdddeZ%ddZ&dd Z'Gd!d"d"eZ(d#d$Z)e*d%krdd&l+m,Z,e,d'd(d)dS)+aRPC Implementation, originally written for the Python Idle IDE For security reasons, GvR requested that Idle's Python execution server process connect to the Idle process, which listens for the connection. Since Idle has only one client per server, this was not a limitation. +---------------------------------+ +-------------+ | socketserver.BaseRequestHandler | | SocketIO | +---------------------------------+ +-------------+ ^ | register() | | | unregister()| | +-------------+ | ^ ^ | | | | + -------------------+ | | | | +-------------------------+ +-----------------+ | RPCHandler | | RPCClient | | [attribute of RPCServer]| | | +-------------------------+ +-----------------+ The RPCServer handler class is expected to provide register/unregister methods. RPCHandler inherits the mix-in class SocketIO, which provides these methods. See the Idle run.main() docstring for further information on how this was accomplished in Idle. NcCst|}|S)z*Return code object from marshal string ms.)marshalloads)mscor./opt/alt/python37/lib/python3.7/idlelib/rpc.py unpickle_code-s rcCst|}t|ffS)zBReturn unpickle function and tuple with marshalled co code object.)rdumpsr)rrrrr pickle_code3s r cCs$t}t||}|||S)z.Return pickled (or marshalled) string for obj.)ioBytesIO CodePicklerdumpgetvalue)objZprotocolfprrrr 9s  r c@s"eZdZejeiZeejdS)r N) __name__ __module__ __qualname__typesCodeTyper dispatch_tableupdatecopyregrrrrr Bs r i z 127.0.0.1c@s6eZdZd ddZddZddZdd Zd d ZdS) RPCServerNcCs |dkr t}tj|||dS)N) RPCHandler socketserver TCPServer__init__)selfaddrZ handlerclassrrrrLszRPCServer.__init__cCsdS)z@Override TCPServer method, no bind() phase for connecting entityNr)r rrr server_bindQszRPCServer.server_bindcCs|j|jdS)zOverride TCPServer method, connect() instead of listen() Due to the reversed connection, self.server_address is actually the address of the Idle Client to which we are connecting. N)socketZconnectserver_address)r rrrserver_activateUszRPCServer.server_activatecCs |j|jfS)z:Override TCPServer method, return already connected socket)r#r$)r rrr get_request^szRPCServer.get_requestcCsyWntk rYntj}td|dtd|dtdtj|dtd||dtdt||dtj |dtd|dtd|dt d YnXd S) zOverride TCPServer method Error message goes to __stderr__. No error message if exiting normally or socket raised EOF. Other exceptions not handled in server code will cause os._exit. z) ----------------------------------------)filezUnhandled server exception!z Thread: %szClient Address: z Request: z# *** Unrecoverable, server exiting!z(----------------------------------------rN) SystemExitsys __stderr__print threadingcurrent_threadnamerepr traceback print_excos_exit)r requestZclient_addressZerfrrr handle_errorbs     zRPCServer.handle_error)N)rrrrr"r%r&r5rrrrrJs   rc@seZdZdZd;ddZddZddZd d Zd d Zd dZ ddZ ddZ ddZ ddZ ddZddZddZddZdd Zd!d"Zd#d$Zd%d&Zd'd(Zd)d*Zd+Zd,ZdZd-d.Zd/d0Zd1d2Zd3d4Zd5d6Zd7d8Z d9d:Z!dS)<SocketIOrNcCs@t|_|dk r||_||_|dkr*t}||_i|_i|_dS)N) r,r- sockthread debuggingsock objecttableobjtable responsescvars)r r9r;r8rrrrs zSocketIO.__init__cCs |j}d|_|dk r|dS)N)r9close)r r9rrrr>szSocketIO.closecCstddS)z!override for specific exit actionrN)r2r3)r rrrexithookszSocketIO.exithookcGsR|js dS|jdttj}x|D]}|dt|}q(Wt|tjddS)N )r') r8locationstrr,r-r.r+r)r*)r argssarrrdebugs  zSocketIO.debugcCs||j|<dS)N)r;)r oidobjectrrrregisterszSocketIO.registercCs&y |j|=Wntk r YnXdS)N)r;KeyError)r rGrrr unregisters zSocketIO.unregisterc Cs|d|y|\}\}}}}Wntk r4dSX||jkrNdd|ffS|j|}|dkrvi} t|| d| fS|dkri} t|| d| fSt||sdd|ffSt||} y^|d kr| ||} t| trt | } d| fS|d krt || ||ffd Sdd |fSWnt k r,Ynt k rBYnptk rXYnZtk r~} zd | fSd} ~ XYn4d}t||| |ftjdtjtjddSdS)Nz localcall:)ERRORzBad request formatrLzUnknown object id: %r __methods__OK__attributes__zUnsupported method name: %rCALLQUEUE)QUEUEDNzUnsupported message type: %sCALLEXCzU*** Internal Error: rpc.py:SocketIO.localcall() Object: %s Method: %s Args: %s )r') EXCEPTIONN)rF TypeErrorr; _getmethods_getattributeshasattrgetattr isinstance RemoteObject remoteref request_queueZputr(KeyboardInterruptOSError Exceptionr+r)r*r0r1)r seqr4howrG methodnamerCkwargsrmethods attributesmethodZretZexmsgrrr localcallsT          zSocketIO.localcallcCs(|d|||||||}||S)Nzremotecall:asynccall: )rF asynccall asyncreturn)r rGrcrCrdrarrr remotecallszSocketIO.remotecallcCs(|d|||||||}||S)Nzremotequeue:asyncqueue: )rF asyncqueuerk)r rGrcrCrdrarrr remotequeueszSocketIO.remotequeuecCs`d||||ff}|}t|jkr8t}||j|<|d||||||||f|S)NrPz asynccall:%d:)newseqr,r-r7 Conditionr=rF putmessage)r rGrcrCrdr4racvarrrrrjs zSocketIO.asynccallcCs`d||||ff}|}t|jkr8t}||j|<|d||||||||f|S)NrQzasyncqueue:%d:)ror,r-r7rpr=rFrq)r rGrcrCrdr4rarrrrrrms zSocketIO.asyncqueuecCs6|d||j|dd}|d||||S)Nz#asyncreturn:%d:call getresponse(): g?)waitzasyncreturn:%d:response: )rF getresponsedecoderesponse)r raresponserrrrkszSocketIO.asyncreturncCs|\}}|dkr|S|dkr dS|dkr6|ddS|dkrT|d|dS|dkrp|d|t||d kr|d ||t||dS) NrNrRrTzdecoderesponse: EXCEPTIONEOFzdecoderesponse: EOFrLzdecoderesponse: Internal ERROR:rSzdecoderesponse: Call Exception:)rFdecode_interrupthook RuntimeError SystemError)r rvrbwhatrrrrus&    zSocketIO.decoderesponsecCstdS)N)EOFError)r rrrrxszSocketIO.decode_interrupthookcCs6y|jdddWntk r0|ddSXdS)zListen on socket until I/O not ready or EOF pollresponse() will loop looking for seq number None, which never comes, and exit on EOFError. Ng?)myseqrszmainloop:return)rtr}rF)r rrrmainloops  zSocketIO.mainloopcCs6|||}|dk r2|\}}|dkr2|||f}|S)NrN) _getresponse_proxify)r r~rsrvrbr{rrrrt#s  zSocketIO.getresponsecCs4t|trt||jSt|tr0tt|j|S|S)N)rZ RemoteProxyRPCProxyrGlistmapr)r rrrrr+s    zSocketIO._proxifycCs|d|t|jkr:x|||}|dk r|SqWnb|j|}|x||jkrb|qNW|j|}|d||f|j|=|j|=| |SdS)Nz_getresponse:myseq:z-_getresponse:%s: thread woke up: response: %s) rFr,r-r7 pollresponser=acquirer<rsrelease)r r~rsrvrrrrrr3s"        zSocketIO._getresponsecCs|jd|_}|S)N)nextseq)r rarrrroIszSocketIO.newseqc Cs|d|dy t|}Wn,tjk rJtdt|tjdYnXt dt ||}xnt |dkry0t g|j gg\}}}|j |dt}Wn ttfk rtdYnX||d}qbWdS)Nzputmessage:%d:rzCannot pickle:)r'zr?rFrIrKrirlrnrjrmrkrurxrrtrrrorqrrrrrrrrrrrrrrr6s> .   I r6c@s eZdZdS)r[N)rrrrrrrr[sr[cCst|}|t|<t|S)N)idr:r)rrGrrrr\sr\c@seZdZddZdS)rcCs ||_dS)N)rG)r rGrrrrszRemoteProxy.__init__N)rrrrrrrrrsrc@s,eZdZdZdZddZddZddZd S) rFz#ScCs(||_t||tj||||dS)N)Zcurrent_handlerr6rrBaseRequestHandler)r r9r!Zsvrrrrrs zRPCHandler.__init__cCs |dS)z(handle() method required by socketserverN)r)r rrrhandleszRPCHandler.handlecCs t||S)N)r)r rGrrrget_remote_proxy szRPCHandler.get_remote_proxyN)rrrr8rArrrrrrrrs rc@s:eZdZdZdZdZejejfddZ ddZ dd Z d S) RPCClientFz#CrcCs*t|||_|j||jddS)Nr)r#listening_sockZbindZlisten)r addressZfamilytyperrrrs zRPCClient.__init__cCsV|j\}}|jr$td|tjd|dtkr>t||ntd|tjdt dS)Nz****** Connection request from )r'rz** Invalid host: ) racceptr8r+r)r* LOCALHOSTr6rr_)r Z working_sockrrrrrs zRPCClient.acceptcCs t||S)N)r)r rGrrrr#szRPCClient.get_remote_proxyN) rrrr8rArr#ZAF_INETZ SOCK_STREAMrrrrrrrr s  rc@s4eZdZdZdZddZddZddZdd ZdS) rNcCs||_||_dS)N)sockiorG)r rrGrrrr,szRPCProxy.__init__cCsp|jdkr||j|r.t|j|j|S|jdkr@|||jkrd|j|jd|fi}|St |dS)N__getattribute__) _RPCProxy__methods_RPCProxy__getmethodsr MethodProxyrrG_RPCProxy__attributes_RPCProxy__getattributesrlr)r r.valuerrr __getattr__0s      zRPCProxy.__getattr__cCs|j|jddi|_dS)NrOr)rrlrGr)r rrrZ__getattributes>s zRPCProxy.__getattributescCs|j|jddi|_dS)NrMr)rrlrGr)r rrrZ __getmethodsBs zRPCProxy.__getmethods) rrrrrrrrrrrrrr's rcCsTx*t|D]}t||}t|r d||<q Wt|trPx|jD]}t||q>WdS)Nr)dirrYcallablerZr __bases__rV)rrer.attrsuperrrrrVFs    rVcCs0x*t|D]}t||}t|s d||<q WdS)Nr)rrYr)rrfr.rrrrrWQs rWc@seZdZddZddZdS)rcCs||_||_||_dS)N)rrGr.)r rrGr.rrrrZszMethodProxy.__init__cOs|j|j|j||}|S)N)rrlrGr.)r rCrdrrrr__call___szMethodProxy.__call__N)rrrrrrrrrrXsrcCs~|dkr dSdt_t|}ytj|Wn<tk rfd}||d}||d}tj|YnXtjd|t_dS)z9Override standard display hook to use non-locale encodingNasciibackslashreplacestrict ) builtins_r/r)stdoutwriteUnicodeEncodeErrorencodedecode)rtextencodingbytesrrr displayhookgs   r__main__)mainzidlelib.idle_test.test_rpcr) verbosity)N)-__doc__rrr rr2rrrr#rrr)r,r0rrr r ZPicklerr rrrrr:ZQueuer]rrHr6r[r\rrrrrrVrWrrrZunittestrrrrrsR 2  k