16 $ lY> je8Cqn1h e? a i@sNdZddlZddlZddlZddlZddlZddlZddlZddl Z ddl m Z gdZ dZdZdZdZd Zd Zeejjd d ejjDZd ZdZdZedjZedj Z!edZ"edZ#hdZ$d@ddZ%Gdddej&j'Z(ddZ)e(fddZ*Gdddej+Z,Gd d!d!Z-z ddl.Z.Wne/yHYn0Gd"d#d#e-Z0e 1d#Gd$d%d%e2Z3Gd&d'd'e3Z4Gd(d)d)e3Z5Gd*d+d+e3Z6Gd,d-d-e3Z7Gd.d/d/e3Z8Gd0d1d1e3Z9Gd2d3d3e3Z:Gd4d5d5e:Z;Gd6d7d7e:ZGdd?d?e@e>ZAe3ZBdS)Aa 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/python3.9/http/client.py kriids[^:\s][^:\r\n]*s\n(?![ \t])|\r(?![ \t\n])z[- ]z[-]>ZPATCHZPOSTPUTdatac Csjz |dWSt