_c@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~jPZQejMdZRde jSfdYZTd fdYZUd fdYZVd fdYZWyddlXZXWnek r;nCXdeVfdYZYejZddeWfdYZ[dZ\d e]fdYZ^d e^fdYZ_de^fdYZ`de^fdYZade^fdYZbde^fdYZcde^fdYZdde^fdYZedeefdYZfdeefdYZgdeefdYZhde^fdYZide^fdYZje^ZkdfdYZldS(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[- -]t HTTPMessagecBs#eZdZdZdZRS(cCsT|jj|}|dkr.||j|RPtclosetLineAndFileWrappertint(R&RIRTR2RU((s/usr/lib64/python2.7/httplib.pyt _read_statuss8       c Cs |jdk rdSxtr|j\}}}|tkrAPnxrtr|jjtd}t|tkrt dn|j }|sPn|j dkrDdG|GHqDqDWqW||_ |j |_ |dkrd|_n?|jdrd|_n$|d krd |_n t||jd krid|_d|_d|_tt|_dSt|jd|_|j dkrx|jjD]}dG|GqWnd|j_|jjd }|r|jd krd|_d|_n d|_|j|_|jjd }|r|j ryt||_Wntk rcd|_qX|jdkrd|_qn d|_|tks|tksd|kodkns|jdkrd|_n|j r |j r |jdkr d|_ndS(Nis header lineisheader:sHTTP/1.0i sHTTP/1.i sHTTP/0.9i stransfer-encodingRVscontent-lengthiditHEAD( RRR$R7RdtCONTINUER4R;R<R8R=R@ROR2RURTR>R RXRVRYR!RR1t getheadertlowerRWt _check_closeRcR`t NO_CONTENTt NOT_MODIFIEDRQ(R&RTR2RUtskipthdrttr_encRX((s/usr/lib64/python2.7/httplib.pytbeginst                        cCs|jjd}|jdkrS|jjd}|rOd|jkrOtStS|jjdritS|rd|jkrtS|jjd}|rd|jkrtStS(Nt connectioni Ras keep-alivesproxy-connection(RRRgRTRhR7tFalse(R&tconntpconn((s/usr/lib64/python2.7/httplib.pyRiscCs&|jr"|jjd|_ndS(N(R4RaR$(R&((s/usr/lib64/python2.7/httplib.pyRa2s  cCs |jdkS(N(R4R$(R&((s/usr/lib64/python2.7/httplib.pytisclosed7scCsT|jdkrdS|jdkr0|jdS|jrF|j|S|dkr|jdkrs|jj}n@y|j|j}Wnt k r|jnXd|_|j|S|jdk r||jkr|j}qn|jj|}|s|jn|jdk rP|jt |8_|jsP|jqPn|S(NR.Rei( R4R$RQRaRVt _read_chunkedRXtreadt _safe_readR R8(R&tamtts((s/usr/lib64/python2.7/httplib.pyRvBs:          cCsC|jtkst|j}g}xtr|dkr|jjtd}t |tkrpt dn|j d}|dkr|| }nyt |d}Wn0t k r|jtdj|nX|dkrPqn|dkr|j|j|n||krR|j|j||||_dj|S||kr|j|j||jdd|_dj|S|j|j|||8}|jdd}q'Wx[tr+|jjtd}t |tkrt dn|sPn|d krPqqW|jdj|S( Nis chunk sizet;iiR.is trailer lines (RVRStAssertionErrorRWR7R$R4R;R<R8R=tfindRcR`RaR R%R?Rw(R&RxRWR(RIti((s/usr/lib64/python2.7/httplib.pyRuosV                      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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