git/t/t5813-proto-disable-ssh.sh
Jeff King aeeb2d4968 connect: reject paths that look like command line options
If we get a repo path like "-repo.git", we may try to invoke
"git-upload-pack -repo.git". This is going to fail, since
upload-pack will interpret it as a set of bogus options. But
let's reject this before we even run the sub-program, since
we would not want to allow any mischief with repo names that
actually are real command-line options.

You can still ask for such a path via git-daemon, but there's no
security problem there, because git-daemon enters the repo itself
and then passes "."  on the command line.

Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-28 15:54:55 -07:00

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#!/bin/sh
test_description='test disabling of git-over-ssh in clone/fetch'
. ./test-lib.sh
. "$TEST_DIRECTORY/lib-proto-disable.sh"
setup_ssh_wrapper
test_expect_success 'setup repository to clone' '
test_commit one &&
mkdir remote &&
git init --bare remote/repo.git &&
git push remote/repo.git HEAD
'
test_proto "host:path" ssh "remote:repo.git"
test_proto "ssh://" ssh "ssh://remote$PWD/remote/repo.git"
test_proto "git+ssh://" ssh "git+ssh://remote$PWD/remote/repo.git"
# Don't even bother setting up a "-remote" directory, as ssh would generally
# complain about the bogus option rather than completing our request. Our
# fake wrapper actually _can_ handle this case, but it's more robust to
# simply confirm from its output that it did not run at all.
test_expect_success 'hostnames starting with dash are rejected' '
test_must_fail git clone ssh://-remote/repo.git dash-host 2>stderr &&
! grep ^ssh: stderr
'
test_expect_success 'setup repo with dash' '
git init --bare remote/-repo.git &&
git push remote/-repo.git HEAD
'
test_expect_success 'repo names starting with dash are rejected' '
test_must_fail git clone remote:-repo.git dash-path 2>stderr &&
! grep ^ssh: stderr
'
test_expect_success 'full paths still work' '
git clone "remote:$PWD/remote/-repo.git" dash-path
'
test_done