mfc@sdZddlmZddlZddlZddlZddlmZddlmZddl Z e j -ere j dde nddl Z WdQXyddlmZWn!ek rddlmZnXd d d d d ddddddddddddgZdZdZdZdZdZdZd Zd!Zd"Zd#Zd$Zd%Zd&Zd'Zd(Z d)Z!d*Z"d+Z#d,Z$d-Z%d.Z&d/Z'd0Z(d1Z)d2Z*d3Z+d4Z,d5Z-d6Z.d7Z/d8Z0d9Z1d:Z2d;Z3d<Z4d=Z5d>Z6d?Z7d@Z8dAZ9dBZ:dCZ;dDZ<dEZ=dFZ>dGZ?dHZ@dIZAdJZBdKZCdLZDdMZEdNZFdOZGdPZHi)dQd 6dRd!6dSd#6dTd$6dUd%6dVd&6dWd'6dXd(6dYd)6dZd,6d[d-6d\d.6d]d/6d^d06d_d16d`da6dbd26dcd36ddd46ded56dfd66dgd76dhd86did96djd:6dkd;6dld<6dmd=6dnd>6dod?6dpd@6dqdA6drdB6dsdC6dtdD6dudI6dvdJ6dwdK6dxdL6dydM6dzdN6ZId{ZJd|ZKd ZLejMd}jNZOejMd~jPZQejMdZRejMdZSde jTfdYZUd fdYZVd fdYZWd fdYZXyddlYZYWnek rJnCXdeWfdYZZej[ddeXfdYZ\dZ]d e^fdYZ_d e_fdYZ`de_fdYZade_fdYZbde_fdYZcde_fdYZdde_fdYZede_fdYZfdeffdYZgdeffdYZhdeffdYZide_fdYZjde_fdYZke_ZldfdYZmdS(s HTTP/1.1 client library HTTPConnection goes through a number of "states", which define when a client may legally make another request or fetch the response for a particular request. This diagram details these state transitions: (null) | | HTTPConnection() v Idle | | putrequest() v Request-started | | ( putheader() )* endheaders() v Request-sent | | response = getresponse() v Unread-response [Response-headers-read] |\____________________ | | | response.read() | putrequest() v v Idle Req-started-unread-response ______/| / | response.read() | | ( putheader() )* endheaders() v v Request-started Req-sent-unread-response | | response.read() v Request-sent This diagram presents the following rules: -- a second request may not be started until {response-headers-read} -- a response [object] cannot be retrieved until {request-sent} -- there is no differentiation between an unread response body and a partially read response body Note: this enforcement is applied by the HTTPConnection class. The HTTPResponse class does not enforce this state machine, which implies sophisticated clients may accelerate the request/response pipeline. Caution should be taken, though: accelerating the states beyond the above pattern may imply knowledge of the server's connection-close behavior for certain requests. For example, it is impossible to tell whether the server will close the connection UNTIL the response headers have been read; this means that further requests cannot be placed into the pipeline until it is known that the server will NOT be closing the connection. Logical State __state __response ------------- ------- ---------- Idle _CS_IDLE None Request-started _CS_REQ_STARTED None Request-sent _CS_REQ_SENT None Unread-response _CS_IDLE Req-started-unread-response _CS_REQ_STARTED Req-sent-unread-response _CS_REQ_SENT i(tarrayN(t py3kwarning(turlsplittignores.*mimetools has been removed(tStringIOtHTTPt HTTPResponsetHTTPConnectiont HTTPExceptiont NotConnectedtUnknownProtocoltUnknownTransferEncodingtUnimplementedFileModetIncompleteReadt InvalidURLtImproperConnectionStatetCannotSendRequesttCannotSendHeadertResponseNotReadyt BadStatusLineterrort responsesiPitUNKNOWNtIdlesRequest-starteds Request-sentidieifiiiiiiiiii,i-i.i/i0i1i3iiiiiiiiiiiiiiiiiiiiiiiiiiiiiitContinuesSwitching ProtocolstOKtCreatedtAcceptedsNon-Authoritative Informations No Contents Reset ContentsPartial ContentsMultiple ChoicessMoved PermanentlytFounds See Others Not Modifieds Use Proxys(Unused)i2sTemporary Redirects Bad Requestt UnauthorizedsPayment Requiredt Forbiddens Not FoundsMethod Not AllowedsNot AcceptablesProxy Authentication RequiredsRequest TimeouttConflicttGonesLength RequiredsPrecondition FailedsRequest Entity Too LargesRequest-URI Too LongsUnsupported Media TypesRequested Range Not SatisfiablesExpectation FailedsInternal Server ErrorsNot Implementeds Bad GatewaysService UnavailablesGateway TimeoutsHTTP Version Not Supportediis\A[^:\s][^:\r\n]*\Zs\n(?![ \t])|\r(?![ \t\n])s[- -]s[-]t HTTPMessagecBs#eZdZdZdZRS(cCsT|jj|}|dkr.||j|RPtclosetLineAndFileWrappertint(R&RIRTR2RU((s/usr/lib64/python2.7/httplib.pyt _read_statuss8       cCsg}xtr|jjtd}t|tkrFtdn|j|t|tkrxtdtn|dkr Pq q W|S(sReads potential header lines into a list from a file pointer. Length of line is limited by _MAXLINE, and number of headers is limited by _MAXHEADERS. is header linesgot more than %d headerss s R.(s s R.( R7R4R;R<R8R=R?R9R(R&R1RI((s/usr/lib64/python2.7/httplib.pyt _read_headerss   c Cs|jdk rdSx[trp|j\}}}|tkrAPn|j}|jdkrjd|fGHn~qW||_|j|_ |dkrd|_ n?|j drd|_ n$|dkrd|_ n t ||j dkr d|_ d|_d |_tt|_dSt|jd|_|jdkrfx|jjD]}d G|GqQWnd|j_|jjd }|r|jd krd |_d|_n d|_|j|_|jjd }|r9|j r9yt||_ Wntk rd|_ qBX|j dkrBd|_ qBn d|_ |tks|tksd|koqdkns|jdkrd|_ n|j r|j r|j dkrd |_ndS(Nisheaders:sHTTP/1.0i sHTTP/1.i sHTTP/0.9i isheader:stransfer-encodingRVscontent-lengthiditHEAD(RRR$R7RdtCONTINUEReROR2R@RURTR>R RXRVRYR!RR4R1t getheadertlowerRWt _check_closeRcR`t NO_CONTENTt NOT_MODIFIEDRQ(R&RTR2RUtskipped_headersthdrttr_encRX((s/usr/lib64/python2.7/httplib.pytbeginsj                       cCs|jjd}|jdkrS|jjd}|rOd|jkrOtStS|jjdritS|rd|jkrtS|jjd}|rd|jkrtStS(Nt connectioni Ras keep-alivesproxy-connection(RRRhRTRiR7tFalse(R&tconntpconn((s/usr/lib64/python2.7/httplib.pyRj$scCs&|jr"|jjd|_ndS(N(R4RaR$(R&((s/usr/lib64/python2.7/httplib.pyRaBs  cCs |jdkS(N(R4R$(R&((s/usr/lib64/python2.7/httplib.pytisclosedGscCsT|jdkrdS|jdkr0|jdS|jrF|j|S|dkr|jdkrs|jj}n@y|j|j}Wnt k r|jnXd|_|j|S|jdk r||jkr|j}qn|jj|}|s|jn|jdk rP|jt |8_|jsP|jqPn|S(NR.Rfi( R4R$RQRaRVt _read_chunkedRXtreadt _safe_readR R8(R&tamtts((s/usr/lib64/python2.7/httplib.pyRwRs:          cCs.|j}g}xtr|dkr|jjtd}t|tkr[tdn|jd}|dkr|| }nyt |d}Wn0t k r|j t dj |nX|dkrPqn|dkr|j|j|n||kr=|j|j||||_dj |S||kr|j|j||jdd|_dj |S|j|j|||8}|jdd}qWx[tr|jjtd}t|tkrtdn|sPn|d krPqqW|j dj |S( Nis chunk sizet;iiR.is trailer lines (RWR7R$R4R;R<R8R=tfindRcR`RaR R%R?Rx(R&RyRWR(RIti((s/usr/lib64/python2.7/httplib.pyRvsT                      cCsg}xi|dkrq|jjt|t}|sQtdj||n|j||t|8}q Wdj|S(sVRead the number of bytes requested, compensating for partial reads. 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If the bytes are truly not available (due to EOF), then the IncompleteRead exception can be used to detect the problem. iR.(R4Rwtmint MAXAMOUNTR R%R?R8(R&RyRztchunk((s/usr/lib64/python2.7/httplib.pyRxs cCs |jjS(N(R4tfileno(R&((s/usr/lib64/python2.7/httplib.pyRscCs.|jdkrtn|jj||S(N(RRR$RRh(R&tnametdefault((s/usr/lib64/python2.7/httplib.pyRhs cCs(|jdkrtn|jjS(s&Return list of (header, value) tuples.N(RRR$Rtitems(R&((s/usr/lib64/python2.7/httplib.pyt getheaderss N(RKRLR$RrR]RdReRpRjRaRuRwRvRxRRhR(((s/usr/lib64/python2.7/httplib.pyRus  '  Q   - :   cBseZdZdZeZeZdZdZ dZ dde j ddZdddZdZdZdZd Zd Zd Zd Zd ZddZdddZdZdZddZdidZdZdZe dZ!RS(i sHTTP/1.1iicCs||_||_d|_g|_d|_t|_d|_d|_ d|_ i|_ |dk rr||_ n|j ||\|_|_tj|_dS(N(ttimeouttsource_addressR$RZt_buffert_HTTPConnection__responset_CS_IDLEt_HTTPConnection__stateRQt _tunnel_hostt _tunnel_portt_tunnel_headersRPt _get_hostportthosttporttsockettcreate_connectiont_create_connection(R&RRRPRR((s/usr/lib64/python2.7/httplib.pyR]s            cCsY|jrtdn|j||\|_|_|rH||_n |jjdS(sC Set up host and port for HTTP CONNECT tunnelling. 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The headers argument should be a mapping of extra HTTP headers to send with the CONNECT request. s.Can't setup tunnel for established connection.N(RZt RuntimeErrorRRRRtclear(R&RRR1((s/usr/lib64/python2.7/httplib.pyt set_tunnels   cCs|dkr|jd}|jd}||kryt||d}WnItk r||ddkr~|j}qtd||dnX|| }n |j}|r|ddkr|ddkr|dd!}qn||fS( Nt:t]iR.snonnumeric port: '%s'it[i(R$trfindRcR`t default_portR(R&RRR}tj((s/usr/lib64/python2.7/httplib.pyRs      &cCs"|j||\|_|_dS(N(RRR(R&RR((s/usr/lib64/python2.7/httplib.pyt _set_hostport/scCs ||_dS(N(RO(R&tlevel((s/usr/lib64/python2.7/httplib.pytset_debuglevel2scCs4|jd|j|jfx4|jjD]#\}}|jd||fq-W|jd|j|jd|jd|j}|j \}}}|dkr|j t j d||j fnx[tr/|jjtd}t|tkrtd n|sPn|dkrPqqWdS( NsCONNECT %s:%d HTTP/1.0 s%s: %s s RPR[isTunnel connection failed: %d %sis header line(tsendRRRt iteritemstresponse_classRZRPRQRdRaRRR@R7R4R;R<R8R=(R&theaderR(tresponseRTtcodetmessageRI((s/usr/lib64/python2.7/httplib.pyt_tunnel5s(       cCsD|j|j|jf|j|j|_|jr@|jndS(s3Connect to the host and port specified in __init__.N(RRRRRRZRR(R&((s/usr/lib64/python2.7/httplib.pytconnectNs cCsQ|jr"|jjd|_n|jrD|jjd|_nt|_dS(s(Close the connection to the HTTP server.N(RZRaR$RRR(R&((s/usr/lib64/python2.7/httplib.pyRaVs      cCs|jdkr1|jr%|jq1tn|jdkrRdGt|GHnd}t|drt|t  r|jdkrdGHn|j |}x<|r|jj ||j |}qWn|jj |dS(sSend `data' to the server.issend:i RwssendIng a read()ableN( RZR$t auto_openRR ROR^R3t isinstanceRRwtsendall(R&tdatat blocksizet datablock((s/usr/lib64/python2.7/httplib.pyR`s    cCs|jj|dS(suAdd a line of output to the current request buffer. 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N(RRt _CS_REQ_SENTRR(R&R((s/usr/lib64/python2.7/httplib.pyt endheaders+s   cCs|j||||dS(s&Send a complete request to the server.N(t _send_request(R&R[RtbodyR1((s/usr/lib64/python2.7/httplib.pytrequest:scCsd}ytt|}Wnftk r}y"ttj|jj}Wqtt fk r|j dkrdGHqqXnX|dk r|j d|ndS(Nis Cannot stat!!sContent-Length( R$RR8t TypeErrortostfstatRtst_sizetAttributeErrortOSErrorROR(R&Rtthelentte((s/usr/lib64/python2.7/httplib.pyt_set_content_length>s" c Cstjg|D]}|j^q }i}d|krGd|dCs6             mp[ .