U e5d@sfdZddlZddlZddlZddlZddlZddlZddlZ ddl m Z dddddd d d d d ddddddddgZ dZ dZdZdZdZdZeejjddejjDZdZdZed jZed!jZed"Z ed#Z!d$d%d&hZ"dBd(d)Z#Gd*d+d+ej$j%Z&d,d-Z'e&fd.d/Z(Gd0ddej)Z*Gd1ddZ+z ddl,Z,Wne-k r`YnXGd2d3d3e+Z.e /d3Gd4dde0Z1Gd5dde1Z2Gd6d d e1Z3Gd7dde1Z4Gd8d d e1Z5Gd9d d e1Z6Gd:d d e1Z7Gd;d d e1Z8Gddde8Z;Gd?dde1Ze<Z?e1Z@dS)Ca 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 |\_____________________________ | | getresponse() raises | response = getresponse() | ConnectionError v v Unread-response Idle [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 N)urlsplit HTTPResponseHTTPConnection HTTPException NotConnectedUnknownProtocolUnknownTransferEncodingUnimplementedFileModeIncompleteRead InvalidURLImproperConnectionStateCannotSendRequestCannotSendHeaderResponseNotReady BadStatusLine LineTooLongRemoteDisconnectederror responsesPiZUNKNOWNZIdlezRequest-startedz Request-sentcCsi|] }||jqS)phrase).0vrr#/usr/lib64/python3.8/http/client.py jsrids[^:\s][^:\r\n]*s\n(?![ \t])|\r(?![ \t\n])z[- ]z[-]ZPATCHZPOSTZPUTdatac Cshz |dWStk rb}z8t|j|j|j|jd|||j|j|fdW5d}~XYnXdS)zd?Z Z!S)FrrNcCsR|d|_||_||_d|_|_t|_t|_t|_ t|_ t|_ t|_ t|_ dS)Nrb)Zmakefiler@ debuglevel_methodrAmsg_UNKNOWNversionstatusreasonchunked chunk_leftlength will_close)r1sockrKmethodurlrrr__init__s  zHTTPResponse.__init__c Cst|jtdd}t|tkr*td|jdkrBtdt||sNt dz| dd\}}}WnFt k rz| dd\}}d}Wnt k rd}YnXYnX| d s| t|z$t|}|d ks|d krt|Wnt k rt|YnX|||fS) Nr+rCz status linerzreply:z-Remote end closed connection without responsezHTTP/ri)strr@r=r>r-rrKprintreprrsplit ValueError startswith _close_connrint)r1r3rOrPrQrrr _read_statuss2    zHTTPResponse._read_statusc Cs|jdk rdS|\}}}|tkr&qHt|j}|jdkrDtd|~q||_|_| |_ |dkrnd|_ n| drd|_ nt |t|j|_|_|jdkr|jD]\}}td|d|q|jd }|r|d krd |_d|_nd |_||_d|_|jd }|rb|jsbzt||_Wntk rLd|_YnX|jdkrhd|_nd|_|tks|tksd|krdksn|jdkrd|_|js|js|jdkrd |_dS)Nrzheaders:)zHTTP/1.0zHTTP/0.9 zHTTP/1. header:r*transfer-encodingrRTFcontent-lengthrHEAD)rArdZCONTINUErBr@rKr]coderPstriprQrOrarrIrMitemsgetr,rRrS _check_closerUrTrcr`Z NO_CONTENTZ NOT_MODIFIEDrL) r1rOrPrQZskipped_headershdrvalZtr_encrTrrrbegin5sf               zHTTPResponse.begincCsv|jd}|jdkr.|r*d|kr*dSdS|jdr>dS|rRd|krRdS|jd}|rrd|krrdSdS)NZ connectionrfcloseTFz keep-alivezproxy-connection)rArorOr,)r1ZconnZpconnrrrrp}s    zHTTPResponse._check_closecCs|j}d|_|dSN)r@rt)r1r@rrrrbszHTTPResponse._close_conncs$ztW5|jr|XdSru)r@rbsuperrtr1 __class__rrrtszHTTPResponse.closecst|jr|jdSru)rvflushr@rwrxrrrzs zHTTPResponse.flushcCsdS)zAlways returns TrueTrrwrrrreadableszHTTPResponse.readablecCs |jdkS)z!True if the connection is closed.N)r@rwrrrisclosedszHTTPResponse.isclosedcCs|jdkrdS|jdkr$|dS|dk rRt|}||}t|d|S|jr`|S|j dkrv|j }n6z| |j }Wnt k r|YnXd|_ ||SdS)Nr<rkr) r@rLrb bytearrayreadinto memoryviewtobytesrR_readall_chunkedrTread _safe_readr )r1amtbr2srrrrs*     zHTTPResponse.readcCs|jdkrdS|jdkr$|dS|jr4||S|jdk r^t||jkr^t|d|j}|j|}|s||r||n&|jdk r|j|8_|js||S)z^Read up to len(b) bytes into bytearray b and return the number of bytes read. Nrrk) r@rLrbrR_readinto_chunkedrTr-rr~)r1rr2rrrr~s$       zHTTPResponse.readintocCsr|jtd}t|tkr$td|d}|dkrB|d|}z t|dWStk rl|YnXdS)Nr+z chunk size;r) r@r=r>r-rfindrcr`rb)r1r3irrr_read_next_chunk_sizes    z"HTTPResponse._read_next_chunk_sizecCs:|jtd}t|tkr$td|s*q6|dkrq6qdS)Nr+z trailer liner9)r@r=r>r-rr1r3rrr_read_and_discard_trailers z&HTTPResponse._read_and_discard_trailercCsl|j}|sh|dk r|dz |}Wntk rDtdYnX|dkrb||d}||_|S)NrZr<r)rSrrr`r rrb)r1rSrrr_get_chunk_left s  zHTTPResponse._get_chunk_leftcCsp|jtkstg}z6|}|dkr&q>|||d|_qd|WStk rjtd|YnXdSNrr<) rRrNAssertionErrorrr0rrSrEr )r1valuerSrrrr8s zHTTPResponse._readall_chunkedcCs|jtkstd}t|}zv|}|dkr2|WSt||kr\||}|||_||WS|d|}||}||d}||7}d|_qWn(tk rtt |d|YnXdS)Nr) rRrNrrrr-_safe_readintorSr bytes)r1rZ total_bytesZmvbrSr2Ztemp_mvbrrrrFs$        zHTTPResponse._readinto_chunkedcCs.|j|}t||kr*t||t||S)a Read the number of bytes requested. This function should be used when bytes "should" be present for reading. If the bytes are truly not available (due to EOF), then the IncompleteRead exception can be used to detect the problem. )r@rr-r )r1rrrrrr^s  zHTTPResponse._safe_readcCs:t|}|j|}||kr6tt|d||||S)z2Same as _safe_read, but for reading into a buffer.N)r-r@r~r r)r1rrr2rrrrjs  zHTTPResponse._safe_readintocCs|jdks|jdkrdS|jr(||S|jdk rJ|dksD||jkrJ|j}|j|}|sh|rh|n|jdk r|jt|8_|S)zvRead with at most one underlying system call. If at least one byte is buffered, return that instead. Nrkr<r)r@rLrR_read1_chunkedrTread1rbr-)r1r2resultrrrrrs    zHTTPResponse.read1cCs4|jdks|jdkrdS|jr(||S|j|S)Nrkr<)r@rLrR _peek_chunkedpeek)r1r2rrrrs  zHTTPResponse.peekcs|jdks|jdkrdS|jr*t|S|jdk rL|dksF||jkrL|j}|j|}|sj|rj|n|jdk r|jt|8_|S)Nrkr<r)r@rLrRrvr=rTrbr-)r1limitrrxrrr=s    zHTTPResponse.readlinecCsd|}|dks|dkrdSd|kr0|ks6n|}|j|}|jt|8_|s`td|Sr)rr@rrSr-r )r1r2rSrrrrrs zHTTPResponse._read1_chunkedcCsDz |}Wntk r"YdSX|dkr0dS|j|d|S)Nr<)rr r@r)r1r2rSrrrrs zHTTPResponse._peek_chunkedcCs |jSru)r@filenorwrrrrszHTTPResponse.filenocCsF|jdkrt|j|p|}t|ts4t|ds8|Sd|SdS)axReturns the value of the header matching *name*. If there are multiple matching headers, the values are combined into a single string separated by commas and spaces. If no matching header is found, returns *default* or None if the *default* is not specified. If the headers are unknown, raises http.client.ResponseNotReady. N__iter__z, )rArZget_all isinstancer\hasattrrE)r1r&defaultrArrr getheaders zHTTPResponse.getheadercCs|jdkrtt|jS)z&Return list of (header, value) tuples.N)rArlistrnrwrrr getheaderss zHTTPResponse.getheaderscCs|SrurrwrrrrszHTTPResponse.__iter__cCs|jS)ajReturns an instance of the class mimetools.Message containing meta-information associated with the URL. When the method is HTTP, these headers are those returned by the server at the head of the retrieved HTML page (including Content-Length and Content-Type). When the method is FTP, a Content-Length header will be present if (as is now usual) the server passed back a file length in response to the FTP retrieval request. A Content-Type header will be present if the MIME type can be guessed. When the method is local-file, returned headers will include a Date representing the file's last-modified time, a Content-Length giving file size, and a Content-Type containing a guess at the file's type. See also the description of the mimetools module. )rArwrrrinfoszHTTPResponse.infocCs|jS)aZReturn the real URL of the page. In some cases, the HTTP server redirects a client to another URL. The urlopen() function handles this transparently, but in some cases the caller needs to know which URL the client was redirected to. The geturl() method can be used to get at this redirected URL. )rXrwrrrgeturls zHTTPResponse.geturlcCs|jS)zuReturn the HTTP status code that was sent with the response, or None if the URL is not an HTTP URL. )rPrwrrrgetcodeszHTTPResponse.getcode)rNN)N)r)r)r)N)"r5r6r7rYrdrsrprbrtrzr{r|rr~rrrrrrrrrr=rrrrrrrrr __classcell__rrrxrrs< !H  "      c@s eZdZdZdZeZeZdZ dZ e ddZ e ddZ d ejd d fd d Zd7d dZddZddZddZddZddZddZddZddZd8d d!Zd9d"d#Zd$d%Zd&d'Zd(d)Zd*d+Zd,d-Z d:dd.d/d0Z!d ifdd.d1d2Z"d3d4Z#d5d6Z$d S);rrfzHTTP/1.1r+rcCs t|tjS)zFTest whether a file-like object is a text or a binary stream. )rio TextIOBase)streamrrr _is_textIOszHTTPConnection._is_textIOcCsf|dkr|tkrdSdSt|dr*dSzt|}|jWStk rNYnXt|trbt|SdS)aGet the content-length based on the body. If the body is None, we set Content-Length: 0 for methods that expect a body (RFC 7230, Section 3.3.2). We also set the Content-Length for any method if the body is a str or bytes-like object and not a file. Nrr) upper_METHODS_EXPECTING_BODYrrnbytes TypeErrorrr\r-)bodyrWZmvrrr_get_content_lengths   z"HTTPConnection._get_content_lengthN cCsn||_||_||_d|_g|_d|_t|_d|_d|_ d|_ i|_ | ||\|_ |_||j tj|_dSru)timeoutsource_address blocksizerV_buffer_HTTPConnection__response_CS_IDLE_HTTPConnection__staterL _tunnel_host _tunnel_port_tunnel_headers _get_hostporthostport_validate_hostsocketZcreate_connection_create_connection)r1rrrrrrrrrY4s zHTTPConnection.__init__cCs<|jrtd|||\|_|_|r.||_n |jdS)aDSet up host and port for HTTP CONNECT tunnelling. In a connection that uses HTTP CONNECT tunneling, the host passed to the constructor is used as a proxy server that relays all communication to the endpoint passed to `set_tunnel`. This done by sending an HTTP CONNECT request to the proxy server when the connection is established. This method must be called before the HTTP connection has been established. The headers argument should be a mapping of extra HTTP headers to send with the CONNECT request. z.Can't set up tunnel for established connectionN)rV RuntimeErrorrrrrclear)r1rrrArrr set_tunnelJs zHTTPConnection.set_tunnelcCs|dkr|d}|d}||krzt||dd}WnHtk r||dddkrh|j}ntd||ddYnX|d|}n|j}|r|ddkr|ddkr|dd}||fS) Nr*]r+r[znonnumeric port: '%s'r[r)rfindrcr` default_portr )r1rrrjrrrrbs   zHTTPConnection._get_hostportcCs ||_dSru)rK)r1levelrrrset_debuglevelvszHTTPConnection.set_debuglevelc Csd|j|jf}|d}|||jD](\}}d||f}|d}||q.|d|j|j|jd}| \}} } | t j j kr| td| | f|jtd} t| tkrtd | sq| d krq|jd krtd | qdS) NzCONNECT %s:%d HTTP/1.0 asciiz%s: %s rr:rWzTunnel connection failed: %d %sr+r8r9rrg)rrrsendrrnresponse_classrVrLrdhttp HTTPStatusZOKrtOSErrorrmr@r=r>r-rrKr]rF) r1Z connect_strZ connect_bytesheaderrZ header_strZ header_bytesresponserOrlmessager3rrr_tunnelys4         zHTTPConnection._tunnelcCsB||j|jf|j|j|_|jtjtj d|j r>| dS)z3Connect to the host and port specified in __init__.r+N) rrrrrrVZ setsockoptrZ IPPROTO_TCPZ TCP_NODELAYrrrwrrrconnects zHTTPConnection.connectcCsBt|_z|j}|r d|_|W5|j}|rsz/HTTPConnection._send_request..rr+rzaccept-encodingrrirhFrzUnable to determine size of %rTzTransfer-EncodingrRzContent-Lengthrr) frozensetrrrKr]rr\rnrr(r) r1rWrXrrArZ header_namesZskipsZcontent_lengthrqrrrrr s0      zHTTPConnection._send_requestcCs|jr|jrd|_|jtks&|jr0t|j|jdkrR|j|j|j|jd}n|j|j|jd}z\z | Wnt k r| YnX|j t kstt|_|j r| n||_|WS| YnXdS)a)Get the response from the server. If the HTTPConnection is in the correct state, returns an instance of HTTPResponse or of whatever object is returned by the response_class variable. If a request has not been sent or if a previous response has not be handled, ResponseNotReady is raised. If the HTTP response indicates that the connection should be closed, then it will be closed before the response is returned. When the connection is closed, the underlying socket is closed. Nrr)rr|rrrrKrrVrLrsConnectionErrorrtrUrNrr)r1rrrr getresponses0     zHTTPConnection.getresponse)NN)NF)FF)N)%r5r6r7rrrr HTTP_PORTrrrK staticmethodrrr_GLOBAL_DEFAULT_TIMEOUTrYrrrrrrtrrrrrrrrrrrrr rrrrrrsL     & 6    .csHeZdZdZeZdddejdfddddfdd ZfddZ Z S) HTTPSConnectionz(This class allows communication via SSL.Nr)contextcheck_hostnamerc stt|j||||| d|dk s2|dk s2|dk rHddl} | dtd||_||_|dkrtt }|j dk rtd|_ |j tj k} |dkr|j }|r| std|s|r||||j dk rd|_ ||_|dk r||j_ dS)N)rrzTkey_file, cert_file and check_hostname are deprecated, use a custom context instead.rZTzMcheck_hostname needs a SSL context with either CERT_OPTIONAL or CERT_REQUIRED)rvrrYwarningswarnDeprecationWarningkey_file cert_filesslZ_create_default_https_contextZpost_handshake_authZ verify_modeZ CERT_NONErr`Zload_cert_chain_context) r1rrrrrrrrrrZ will_verifyrxrrrYcs<    zHTTPSConnection.__init__cs6t|jr|j}n|j}|jj|j|d|_dS)z(Connect to a host on a given (SSL) port.)server_hostnameN)rvrrrrZ wrap_socketrV)r1rrxrrrs  zHTTPSConnection.connect) r5r6r7__doc__ HTTPS_PORTrrrrYrrrrrxrr\s$rc@s eZdZdS)rNr5r6r7rrrrrsc@s eZdZdS)rNrrrrrrsc@s eZdZdS)r Nrrrrrr sc@seZdZddZdS)rcCs|f|_||_dSru)argsrO)r1rOrrrrYszUnknownProtocol.__init__Nr5r6r7rYrrrrrsc@s eZdZdS)rNrrrrrrsc@s eZdZdS)r Nrrrrrr sc@s$eZdZdddZddZejZdS)r NcCs|f|_||_||_dSru)r partialexpected)r1r"r#rrrrYszIncompleteRead.__init__cCs2|jdk rd|j}nd}d|jjt|j|fS)Nz, %i more expectedr[z%s(%i bytes read%s))r#ryr5r-r")r1errr__repr__s  zIncompleteRead.__repr__)N)r5r6r7rYr%r"__str__rrrrr s c@s eZdZdS)r Nrrrrrr sc@s eZdZdS)r Nrrrrrr sc@s eZdZdS)rNrrrrrrsc@s eZdZdS)rNrrrrrrsc@seZdZddZdS)rcCs|s t|}|f|_||_dSru)r^r r3rrrrrYszBadStatusLine.__init__Nr!rrrrrsc@seZdZddZdS)rcCst|dt|fdS)Nz&got more than %d bytes when reading %s)rrYr>)r1Z line_typerrrrYszLineTooLong.__init__Nr!rrrrrsc@seZdZddZdS)rcOs"t|dtj|f||dS)Nr[)rrYConnectionResetError)r1poskwrrrrYs zRemoteDisconnected.__init__Nr!rrrrrs)r)ArZ email.parserrGZ email.messagerrrerZcollections.abcrZ urllib.parser__all__rrrNrrrglobalsupdater __members__rrr>r?compile fullmatchrrrrrrr(rZMessager)rBrIBufferedIOBaserrr ImportErrorrr0 Exceptionrrr rrr r r r rrrrr'rrrrrrsF        W 8