When we invoke a remote transport helper and pass an option with an
argument, we quote the argument as a C-style string if necessary. This
is the case for the cas option, which implements the --force-with-lease
command-line flag, when we're passing a non-ASCII refname.
However, the remote curl helper isn't designed to parse such an
argument, meaning that if we try to use --force-with-lease with an HTTP
push and a non-ASCII refname, we get an error like this:
error: cannot parse expected object name '0000000000000000000000000000000000000000"'
Note the double quote, which get_oid has reminded us is not valid in an
hex object ID.
Even if we had been able to parse it, we would send the wrong data to
the server: we'd send an escaped ref, which would not behave as the user
wanted and might accidentally result in updating or deleting a ref we
hadn't intended.
Since we need to expect a quoted C-style string here, just check if the
first argument is a double quote, and if so, unquote it. Note that if
the refname contains a double quote, then we will have double-quoted it
already, so there is no ambiguity.
We test for this case only in the smart protocol, since the DAV-based
protocol is not capable of handling this capability. We use UTF-8
because this is nicer in our tests and friendlier to Windows, but the
code should work for all non-ASCII refs.
While we're at it, since the name of the option is now well established
and isn't going to change, let's inline it instead of using the #define
constant.
Reported-by: Frej Bjon <frej.bjon@xxxxxxxx>
Signed-off-by: brian m. carlson <sandals@xxxxxxxxxxxxxxxxxxxx>
---
remote-curl.c | 6 +++++-
t/t5541-http-push-smart.sh | 15 +++++++++++++++
2 files changed, 20 insertions(+), 1 deletion(-)
diff --git a/remote-curl.c b/remote-curl.c
index 5cbc6e5002..c9921c552c 100644
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -121,7 +121,11 @@ static int set_option(const char *name, const char *value)
}
else if (!strcmp(name, "cas")) {
struct strbuf val = STRBUF_INIT;
- strbuf_addf(&val, "--" CAS_OPT_NAME "=%s", value);
+ strbuf_addstr(&val, "--force-with-lease=");
+ if (*value != '"')
+ strbuf_addstr(&val, value);
+ else if (unquote_c_style(&val, value, NULL))
+ return -1;
string_list_append(&cas_options, val.buf);
strbuf_release(&val);
return 0;
diff --git a/t/t5541-http-push-smart.sh b/t/t5541-http-push-smart.sh
index 463d0f12e5..187454f5dd 100755
--- a/t/t5541-http-push-smart.sh
+++ b/t/t5541-http-push-smart.sh
@@ -479,6 +479,21 @@ test_expect_success 'clone/fetch scrubs password from reflogs' '
! grep "$HTTPD_URL_USER_PASS" reflog
'
+test_expect_success 'Non-ASCII branch name can be used with --force-with-lease' '
+ cd "$ROOT_PATH" &&
+ git clone "$HTTPD_URL_USER_PASS/smart/test_repo.git" non-ascii &&
+ cd non-ascii &&
+ git checkout -b rama-de-árbol &&
+ test_commit F &&
+ git push --force-with-lease origin rama-de-árbol &&
+ git ls-remote origin refs/heads/rama-de-árbol >actual &&
+ git ls-remote . refs/heads/rama-de-árbol >expect &&
+ test_cmp expect actual &&
+ git push --delete --force-with-lease origin rama-de-árbol &&
+ git ls-remote origin refs/heads/rama-de-árbol >actual &&
+ test_must_be_empty actual
+'
+
test_expect_success 'colorize errors/hints' '
cd "$ROOT_PATH"/test_repo_clone &&
test_must_fail git -c color.transport=always -c color.advice=always \
