U 2ܟj J@sLdZddlmZddlZzddlmZWnek r<YnXddlm Z m Z ddl m Z m Z ddlmZmZddlmZdd lmZmZdd lmZmZdd lmZGd d d Ze e jGdddZe e je je j GdddZ!ddZ"ddZ#GdddZ$d$ddZ%e"e#dddfddZ&ddZ'Gd d!d!Z(d%d"d#Z)dS)&z0 Utilities and helpers for simulating a network ) annotationsN)Error)directlyProvides implementer)error interfaces)TCP4ClientEndpointTCP4ServerEndpoint)ConnectionRefusedError)FactoryProtocol) MemoryReactorMemoryReactorClock)Failurec@s*eZdZddZddddZddZd S) TLSNegotiationcCs||_||_d|_||_dS)NF)obj connectStatesent readyToSend)selfrrr6/tmp/pip-unpacked-wheel-4b529toj/twisted/test/iosim.py__init__szTLSNegotiation.__init__strreturncCsd|jdS)NzTLSNegotiation())rrrrr__repr__"szTLSNegotiation.__repr__cCs"|j|jst|_|dSN)rZ iosimVerifyNativeOpenSSLErrordisconnectReasonloseConnection)rotherZtptrrrpretendToVerify%szTLSNegotiation.pretendToVerifyN)__name__ __module__ __qualname__rrr$rrrrrsrc@seZdZdZdS) FakeAddressz] The default address type for the host and peer of L{FakeTransport} connections. N)r%r&r'__doc__rrrrr(.sr(c@seZdZdZeefddZdZdZ dZ e dZ dZdZdZd FakeTransportz A wrapper around a file-like object to make it behave as a Transport. This doesn't actually stream the file to the attached protocol, and is thus useful mainly as a utility for debugging protocols. cCs tt|Sr)intnext)counterrrr?zFakeTransport.rzConnection doneNcCsH||_||_g|_||_|dkr*t}||_|dkr>t}||_dS)a @param protocol: This transport will deliver bytes to this protocol. @type protocol: L{IProtocol} provider @param isServer: C{True} if this is the accepting side of the connection, C{False} if it is the connecting side. @type isServer: L{bool} @param hostAddress: The value to return from C{getHost}. L{None} results in a new L{FakeAddress} being created to use as the value. @type hostAddress: L{IAddress} provider or L{None} @param peerAddress: The value to return from C{getPeer}. L{None} results in a new L{FakeAddress} being created to use as the value. @type peerAddress: L{IAddress} provider or L{None} N)protocolisServerstream _nextserialserialr( hostAddress peerAddress)rr0r1r5r6rrrrHs zFakeTransport.__init__rrcCs d|jrdpd|j|jjjS)NzFakeTransport<{},{},{}>SC)formatr1r4r0 __class__r%rrrrrds  zFakeTransport.__repr__cCs2|jr dS|jdk r"|j|n |j|dSr) disconnectingtlstlsbufappendr2)rdatarrrwriteks  zFakeTransport.writecCs|jr|js|jdSrproducerstreamingProducerresumeProducingrrrr_checkProducerus zFakeTransport._checkProducercCs||_||_|s|dS)z. From abstract.FileDescriptor NrA)rrBZ streamingrrrregisterProducer{szFakeTransport.registerProducercCs d|_dSr)rBrrrrunregisterProducersz FakeTransport.unregisterProducercCs||dSr)rGr"rrrr stopConsumingszFakeTransport.stopConsumingcCs|d|dS)Nr/)r@join)rZiovecrrr writeSequenceszFakeTransport.writeSequencecCs d|_dSNTr;rrrrr"szFakeTransport.loseConnectioncCs d|_dS)zp For the time being, this is the same as loseConnection; no buffered data will be lost. TNrLrrrrabortConnectionszFakeTransport.abortConnectioncCs,|jdk rt}n|j}|jt|dSr)r<r r!r0ZconnectionLostr)rerrrrrreportDisconnects zFakeTransport.reportDisconnectcCsdS)zM Identify this transport/event source to the logging system. Ziosimrrrrr logPrefixszFakeTransport.logPrefixcCs|jSr)r6rrrrgetPeerszFakeTransport.getPeercCs|jSr)r5rrrrgetHostszFakeTransport.getHostcCsdSrrrrrrrDszFakeTransport.resumeProducingcCsdSrrrrrrpauseProducingszFakeTransport.pauseProducingcCs |dSr)r"rrrr stopProducingszFakeTransport.stopProducingTcCs |j|A}t|||_g|_dSr)r1rr<r=)rZcontextFactoryZbeNormalrrrrstartTLSs  zFakeTransport.startTLScCsH|j}|rg|_d|S|jdk r@|jjr:d|j_|jSdSndSdS)z Get the pending writes from this transport, clearing them from the pending buffer. @return: the bytes written with C{transport.write} @rtype: L{bytes} r/NT)r2rIr<rr)rr7rrr getOutBuffers  zFakeTransport.getOutBuffercCstt|trd|jdk st|jjrZ|j||d|_|jd}|_||t|t j qpd|j_ n |j |dSrK) isinstancerr<AssertionErrorrr$r=rJrrZ ISSLTransportrr0Z dataReceived)rbufbrrrbufferReceiveds   zFakeTransport.bufferReceivedcCsdSrrrrrrgetTcpKeepAliveszFakeTransport.getTcpKeepAlivecCsdSrrrrrr getTcpNoDelayszFakeTransport.getTcpNoDelaycCsdSrrrrrrloseWriteConnectionsz!FakeTransport.loseWriteConnectioncCsdSrrrZenabledrrrsetTcpKeepAliveszFakeTransport.setTcpKeepAlivecCsdSrrr_rrr setTcpNoDelayszFakeTransport.setTcpNoDelay)NN)T)*r%r&r'r) staticmethod itertoolscountr3closedr; disconnectedrZConnectionDoner!rBrCr<rrr@rErFrGrHrJr"rMrOrPrQrRrDrSrTrUrVr[r\r]r^r`rarrrrr*6sD      r*cCs t|ddS)z Create and return a new in-memory transport hooked up to the given protocol. @param clientProtocol: The client protocol to use. @type clientProtocol: L{IProtocol} provider @return: The transport. @rtype: L{FakeTransport} Fr1r*)clientProtocolrrrmakeFakeClients rjcCs t|ddS)z Create and return a new in-memory transport hooked up to the given protocol. @param serverProtocol: The server protocol to use. @type serverProtocol: L{IProtocol} provider @return: The transport. @rtype: L{FakeTransport} Trgrh)serverProtocolrrrmakeFakeServer s rlc@s.eZdZdZd ddZd ddZd d d ZdS)IOPumpz Utility to pump data between clients and servers for protocol testing. Perhaps this is a utility worthy of being in protocol.py? NcCs6||_||_||_||_||_|dkr,t}||_dSr)clientserverclientIOserverIOdebugrclock)rrnrorprqrrrsrrrrszIOPump.__init__FTcCs8d}tdD]}|||r"d}q q4q ds4td|S)zk Pump until there is no more input or output. Returns whether any data was moved. FiTrzToo long)rangepumprX)rrr advanceClockresult_rrrflush)s   z IOPump.flushcCs<|r|jd|js|r"td|j}|j}|j|j|jsT|rtd|rptdt||rtdt||r|j ||r|j ||s|rdS|jj r|jj s|js|rtdd|j_ d|j_ |j dS|jj r8|jj s8|js|rtdd|j_ d|j_ |j dSd S) z Move data back and forth, while also triggering any currently pending scheduled calls (i.e. C{callLater(0, f)}). Returns whether any data was moved. rz -- GLUG --.zC: zS: Tz* Cz* SF) rsZadvancerrprintrqrVrprEreprr[r;rfrO)rrrrvZsDataZcDatarrrru9sF            z IOPump.pump)N)FT)FT)r%r&r'r)rryrurrrrrms rmFTcCs8||||t||||||d}|r4||S)a Create a new L{IOPump} connecting two protocols. @param serverProtocol: The protocol to use on the accepting side of the connection. @type serverProtocol: L{IProtocol} provider @param serverTransport: The transport to associate with C{serverProtocol}. @type serverTransport: L{FakeTransport} @param clientProtocol: The protocol to use on the initiating side of the connection. @type clientProtocol: L{IProtocol} provider @param clientTransport: The transport to associate with C{clientProtocol}. @type clientTransport: L{FakeTransport} @param debug: A flag indicating whether to log information about what the L{IOPump} is doing. @type debug: L{bool} @param greet: Should the L{IOPump} be L{flushed } once before returning to put the protocols into their post-handshake or post-server-greeting state? @type greet: L{bool} @param clock: An optional L{Clock}. Pumping the resulting L{IOPump} will also increase clock time by a small increment. @return: An L{IOPump} which connects C{serverProtocol} and C{clientProtocol} and delivers bytes between them when it is pumped. @rtype: L{IOPump} rs)ZmakeConnectionrmry)rkserverTransportriclientTransportrrgreetrsrurrrconnectfs*  rc Cs8|}|}||} ||} ||t|| || |||dfS)a Connect a given server and client class to each other. @param ServerClass: a callable that produces the server-side protocol. @type ServerClass: 0-argument callable returning L{IProtocol} provider. @param ClientClass: like C{ServerClass} but for the other side of the connection. @type ClientClass: 0-argument callable returning L{IProtocol} provider. @param clientTransportFactory: a callable that produces the transport which will be attached to the protocol returned from C{ClientClass}. @type clientTransportFactory: callable taking (L{IProtocol}) and returning L{FakeTransport} @param serverTransportFactory: a callable that produces the transport which will be attached to the protocol returned from C{ServerClass}. @type serverTransportFactory: callable taking (L{IProtocol}) and returning L{FakeTransport} @param debug: Should this dump an escaped version of all traffic on this connection to stdout for inspection? @type debug: L{bool} @param greet: Should the L{IOPump} be L{flushed } once before returning to put the protocols into their post-handshake or post-server-greeting state? @type greet: L{bool} @param clock: An optional L{Clock}. Pumping the resulting L{IOPump} will also increase clock time by a small increment. @return: the client protocol, the server protocol, and an L{IOPump} which, when its C{pump} and C{flush} methods are called, will move data between the created client and server protocol instances. @rtype: 3-L{tuple} of L{IProtocol}, L{IProtocol}, L{IOPump} r})r) Z ServerClassZ ClientClassZclientTransportFactoryZserverTransportFactoryrrrrscsZciosiorrrconnectedServerAndClients .rc Cs2|\}}}}}|\}}} } ||kr*||fSdSdS)a' Should the client and server described by the arguments be connected to each other, i.e. do their port numbers match? @param clientInfo: the args for connectTCP @type clientInfo: L{tuple} @param serverInfo: the args for listenTCP @type serverInfo: L{tuple} @return: If they do match, return factories for the client and server that should connect; otherwise return L{None}, indicating they shouldn't be connected. @rtype: L{None} or 2-L{tuple} of (L{ClientFactory}, L{IProtocolFactory}) Nr) clientInfo serverInfoZ clientHostZ clientPort clientFactoryZ clientTimeoutZclientBindAddressZ serverPort serverFactoryZ serverBacklogZserverInterfacerrr_factoriesShouldConnects rc@sNeZdZdZdddddZdd d d d d d ZeefdddddZdS)ConnectionCompleterz A L{ConnectionCompleter} can cause synthetic TCP connections established by L{MemoryReactor.connectTCP} and L{MemoryReactor.listenTCP} to succeed or fail. r None) memoryReactorrcCs ||_dS)z Create a L{ConnectionCompleter} from a L{MemoryReactor}. @param memoryReactor: The reactor to attach to. N)_reactor)rrrrrrszConnectionCompleter.__init__FTboolz IOPump | None)rrrrc Cs|j}t|jD]\}}|jD]v}t||}|r|j||j||\}} |d} | d} t | } t | } t | | | | ||d}|SqqdS)aQ Complete a single TCP connection established on this L{ConnectionCompleter}'s L{MemoryReactor}. @param debug: A flag; whether to dump output from the established connection to stdout. @return: a pump for the connection, or L{None} if no connection could be established. N)r) r enumerate tcpClientsZ tcpServersrremove connectorspopZ buildProtocolrlrjr)rrrrrZ clientIdxrrZ factoriesrrrirkr~rrwrrr succeedOnces,       zConnectionCompleter.succeedOncer)reasonrcCs(|jjdd|jjd|dS)z Fail a single TCP connection established on this L{ConnectionCompleter}'s L{MemoryReactor}. @param reason: the reason to provide that the connection failed. rN)rrrZclientConnectionFailedr)rrrrrfailOnce%s zConnectionCompleter.failOnceN)FT) r%r&r'r)rrrr rrrrrrs"rcCs8t}t|dd}t|d}|tt|t|fS)a Create an endpoint that can be fired on demand. @param debug: A flag; whether to dump output from the established connection to stdout. @type debug: L{bool} @return: A client endpoint, and an object that will cause one of the L{Deferred}s returned by that client endpoint. @rtype: 2-L{tuple} of (L{IStreamClientEndpoint}, L{ConnectionCompleter}) z0.0.0.0i)rrr listenr Z forProtocolr r)rrZreactorZclientEndpointZserverEndpointrrrconnectableEndpoint1s   r)FTN)F)*r) __future__rrcZ OpenSSL.SSLrr ImportErrorZzope.interfacerrZtwisted.internetrrZtwisted.internet.endpointsrr Ztwisted.internet.errorr Ztwisted.internet.protocolr r Ztwisted.internet.testingr rZtwisted.python.failurerrZIAddressr(Z ITransportZ ITLSTransportZ IConsumerr*rjrlrmrrrrrrrrrsF   H  S = 5=