Mercurial > public > mercurial-scm > hg-stable
diff contrib/hg-ssh @ 15897:cc021114fc98
hg-ssh: use shlex for shell-like parsing of SSH_ORIGINAL_COMMAND
The Mercurial ssh protocol is defined as if it was ssh-ing to a shell account on
an ordinary ssh server, and where hg was available in $PATH and it executed
the command "hg -R REPOPATH serve --stdio".
The Mercurial ssh client can in most cases just pass REPOPATH to the shell, but
if it contains unsafe characters the client will have to quote it so the shell
will pass the right -R value to hg. Correct quoting of repopaths was introduced
in d8fa35c28335 and tweaked in 86fc364ca5f8.
hg-ssh doesn't create the command via a shell and used a simple parser instead.
It worked fine for simple paths without any quoting, but if any kind of quoting
was used it failed to parse the command like the shell would do it.
This makes hg-ssh behave more like a normal shell with hg in the path would do.
| author | Mads Kiilerich <mads@kiilerich.com> |
|---|---|
| date | Thu, 08 Dec 2011 16:28:18 +0100 |
| parents | f6a433671c06 |
| children | 19379226dc67 |
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--- a/contrib/hg-ssh Sun Jan 15 13:50:12 2012 -0700 +++ b/contrib/hg-ssh Thu Dec 08 16:28:18 2011 +0100 @@ -31,15 +31,20 @@ from mercurial import dispatch -import sys, os +import sys, os, shlex cwd = os.getcwd() allowed_paths = [os.path.normpath(os.path.join(cwd, os.path.expanduser(path))) for path in sys.argv[1:]] orig_cmd = os.getenv('SSH_ORIGINAL_COMMAND', '?') +try: + cmdargv = shlex.split(orig_cmd) +except ValueError, e: + sys.stderr.write("Illegal command %r: %s\n" % (orig_cmd, e)) + sys.exit(-1) -if orig_cmd.startswith('hg -R ') and orig_cmd.endswith(' serve --stdio'): - path = orig_cmd[6:-14] +if cmdargv[:2] == ['hg', '-R'] and cmdargv[3:] == ['serve', '--stdio']: + path = cmdargv[2] repo = os.path.normpath(os.path.join(cwd, os.path.expanduser(path))) if repo in allowed_paths: dispatch.dispatch(dispatch.request(['-R', repo, 'serve', '--stdio']))