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remote-curl: error on incomplete packet

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Currently, remote-curl acts as a proxy and blindly forwards packets
between an HTTP server and fetch-pack. In the case of a stateless RPC
connection where the connection is terminated with a partially written
packet, remote-curl will blindly send the partially written packet
before waiting on more input from fetch-pack. Meanwhile, fetch-pack will
read the partial packet and continue reading, expecting more input. This
results in a deadlock between the two processes.

For a stateless connection, inspect packets before sending them and
error out if a packet line packet is incomplete.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Denton Liu
2020-05-19 06:53:58 -04:00
committed by Junio C Hamano
parent 101736a14c
commit 74b082ad34
6 changed files with 106 additions and 3 deletions
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3
t/lib-httpd/incomplete-length-upload-pack-v2-http.sh Normal file
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@ -0,0 +1,3 @@
printf "Content-Type: text/%s\n" "application/x-git-upload-pack-result"
echo
printf "%s" "00"