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transport: log received server session ID

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When a client receives a session-id capability from a protocol v0, v1,
or v2 server, log the received session ID via a trace2 data event.

Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Josh Steadmon 2020-11-11 15:29:30 -08:00 committed by Junio C Hamano
parent 6b5b6e422e
commit 23bf486aca
2 changed files with 74 additions and 0 deletions
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64
t/t5705-session-id-in-capabilities.sh Executable file
View File

@ -0,0 +1,64 @@
#!/bin/sh
test_description='session ID in capabilities'
. ./test-lib.sh
REPO="$(pwd)/repo"
LOCAL_PRISTINE="$(pwd)/local_pristine"
test_expect_success 'setup repos for session ID capability tests' '
git init "$REPO" &&
test_commit -C "$REPO" a &&
git clone "file://$REPO" "$LOCAL_PRISTINE" &&
test_commit -C "$REPO" b
'
for PROTO in 0 1 2
do
test_expect_success "session IDs not advertised by default (fetch v${PROTO})" '
test_when_finished "rm -rf local tr2-client-events" &&
cp -r "$LOCAL_PRISTINE" local &&
GIT_TRACE2_EVENT="$(pwd)/tr2-client-events" \
git -c protocol.version=$PROTO -C local fetch origin &&
test -z "$(grep \"key\":\"server-sid\" tr2-client-events)"
'
test_expect_success "session IDs not advertised by default (push v${PROTO})" '
test_when_finished "rm -rf local tr2-client-events" &&
cp -r "$LOCAL_PRISTINE" local &&
git -C local pull --no-rebase origin &&
GIT_TRACE2_EVENT_NESTING=5 \
GIT_TRACE2_EVENT="$(pwd)/tr2-client-events" \
git -c protocol.version=$PROTO -C local push origin &&
test -z "$(grep \"key\":\"server-sid\" tr2-client-events)"
'
done
test_expect_success 'enable SID advertisement' '
git -C "$REPO" config transfer.advertiseSID true &&
git -C "$LOCAL_PRISTINE" config transfer.advertiseSID true
'
for PROTO in 0 1 2
do
test_expect_success "session IDs advertised (fetch v${PROTO})" '
test_when_finished "rm -rf local tr2-client-events" &&
cp -r "$LOCAL_PRISTINE" local &&
GIT_TRACE2_EVENT="$(pwd)/tr2-client-events" \
git -c protocol.version=$PROTO -C local fetch origin &&
grep \"key\":\"server-sid\" tr2-client-events
'
test_expect_success "session IDs advertised (push v${PROTO})" '
test_when_finished "rm -rf local tr2-client-events" &&
cp -r "$LOCAL_PRISTINE" local &&
git -C local pull --no-rebase origin &&
GIT_TRACE2_EVENT_NESTING=5 \
GIT_TRACE2_EVENT="$(pwd)/tr2-client-events" \
git -c protocol.version=$PROTO -C local push origin &&
grep \"key\":\"server-sid\" tr2-client-events
'
done
test_done

10
transport.c
View File

@ -286,6 +286,8 @@ static struct ref *handshake(struct transport *transport, int for_push,
struct git_transport_data *data = transport->data;
struct ref *refs = NULL;
struct packet_reader reader;
int sid_len;
const char *server_sid;
connect_setup(transport, for_push);
@ -297,6 +299,8 @@ static struct ref *handshake(struct transport *transport, int for_push,
data->version = discover_version(&reader);
switch (data->version) {
case protocol_v2:
if (server_feature_v2("session-id", &server_sid))
trace2_data_string("transfer", NULL, "server-sid", server_sid);
if (must_list_refs)
get_remote_refs(data->fd[1], &reader, &refs, for_push,
ref_prefixes,
@ -310,6 +314,12 @@ static struct ref *handshake(struct transport *transport, int for_push,
for_push ? REF_NORMAL : 0,
&data->extra_have,
&data->shallow);
server_sid = server_feature_value("session-id", &sid_len);
if (server_sid) {
char *sid = xstrndup(server_sid, sid_len);
trace2_data_string("transfer", NULL, "server-sid", sid);
free(sid);
}
break;
case protocol_unknown_version:
BUG("unknown protocol version");