[issue10721] Remove HTTP 0.9 server support

[Martin v. Löwis]

Martin v. Löwis <martin at v.loewis.de> added the comment:

The question really is whether we want or want not to support RFC 1945 (i.e HTTP/1.0). If we want to support it, we also must comply to section 3.1, which says

 The version of an HTTP message is indicated by an HTTP-Version field
 in the first line of the message. If the protocol version is not
 specified, the recipient must assume that the message is in the
 simple HTTP/0.9 format.

If we then choose to not support HTTP/0.9 (after recognizing that the message is HTTP/0.9), we must then reject the request. According to RFC 2145, we then may send back error 505 (HTTP version not supported).

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nosy: +loewis

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