Edit: /usr/lib/python2.6/httplib.pyo (37382B)
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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
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HTTPExceptiont NotConnectedt UnknownProtocolt UnknownTransferEncodingt UnimplementedFileModet IncompleteReadt
InvalidURLt ImproperConnectionStatet CannotSendRequestt CannotSendHeadert ResponseNotReadyt
BadStatusLinet errort responsesiP i t UNKNOWNt Idles Request-starteds Request-sentid ie if i i i i i i i i i i, i- i. i/ i0 i1 i3 i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i t Continues Switching Protocolst OKt Createdt Accepteds Non-Authoritative Informations
No Contents
Reset Contents Partial Contents Multiple Choicess Moved Permanentlyt Founds See Others Not Modifieds Use Proxys (Unused)i2 s Temporary Redirects Bad Requestt Unauthorizeds Payment Requiredt Forbiddens Not Founds Method Not Alloweds Not Acceptables Proxy Authentication Requireds Request Timeoutt Conflictt Gones Length Requireds Precondition Faileds Request Entity Too Larges Request-URI Too Longs Unsupported Media Types Requested Range Not Satisfiables Expectation Faileds Internal Server Errors Not Implementeds Bad Gateways Service Unavailables Gateway Timeouts HTTP Version Not Supportedi i s \A[^:\s][^:\r\n]*\Zs \n(?![ \t])|\r(?![ \t\n])s [ - ]t HTTPMessagec B s# e Z d Z d Z d Z RS( c C sV | i i | } | d j o | | i | RP t closet LineAndFileWrappert int( R& RI RT R2 RU ( ( s /usr/lib/python2.6/httplib.pyt _read_status s8
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c C s g } xm | d j o_ | i i t | t } | p t d i | | n | i | | t | 8} q Wd i | S( sV Read the number of bytes requested, compensating for partial reads.
Normally, we have a blocking socket, but a read() can be interrupted
by a signal (resulting in a partial read).
Note that we cannot distinguish between EOF and an interrupt when zero
bytes have been read. IncompleteRead() will be raised in this
situation.
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.
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`skip_accept_encoding' if True does not add automatically an
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GHqWn HqWd S( s Test this module.
A hodge podge of tests collected here, because they have too many
external dependencies for the regular test suite.
iNi t di s -ds www.python.orgR t GETs status =s reason =Rv t HTTP11c B s e Z d Z d Z RS( i s HTTP/1.1( RK RL R R ( ( ( s /usr/lib/python2.6/httplib.pyR s s s http://www.python.org/~jeremy/s sourceforge.nets /projects/pythons https://%s%s( s sourceforge.nets /projects/python( ( s sourceforge.nets /projects/python( t syst getoptt argvR R R R R R R8 R Rv R1 R@ R` R t ImportErrorR ( R R
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RESET_CONTENTt PARTIAL_CONTENTt MULTI_STATUSt IM_USEDt MULTIPLE_CHOICESt MOVED_PERMANENTLYt FOUNDt SEE_OTHERRj t USE_PROXYt TEMPORARY_REDIRECTt BAD_REQUESTt UNAUTHORIZEDt PAYMENT_REQUIREDt FORBIDDENt NOT_FOUNDt METHOD_NOT_ALLOWEDt NOT_ACCEPTABLEt PROXY_AUTHENTICATION_REQUIREDt REQUEST_TIMEOUTt CONFLICTt GONEt LENGTH_REQUIREDt PRECONDITION_FAILEDt REQUEST_ENTITY_TOO_LARGEt REQUEST_URI_TOO_LONGt UNSUPPORTED_MEDIA_TYPEt REQUESTED_RANGE_NOT_SATISFIABLEt EXPECTATION_FAILEDt UNPROCESSABLE_ENTITYt LOCKEDt FAILED_DEPENDENCYt UPGRADE_REQUIREDt INTERNAL_SERVER_ERRORt NOT_IMPLEMENTEDt BAD_GATEWAYt SERVICE_UNAVAILABLEt GATEWAY_TIMEOUTt HTTP_VERSION_NOT_SUPPORTEDt INSUFFICIENT_STORAGEt NOT_EXTENDEDR R~ R< R9 t compileR R R R R t MessageR! R R R R R R? R R t ExceptionR R R R
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