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-rw-r--r--gitosis/ssh.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/gitosis/ssh.py b/gitosis/ssh.py
index 9e8d258..3fe846f 100644
--- a/gitosis/ssh.py
+++ b/gitosis/ssh.py
@@ -3,7 +3,7 @@ import logging
log = logging.getLogger('gitosis.ssh')
-_ACCEPTABLE_USER_RE = re.compile(r'^[a-z][a-z0-9]*(@[a-z][a-z0-9.-]*)?$')
+_ACCEPTABLE_USER_RE = re.compile(r'^[a-z][a-z0-9_.-]*(@[a-z][a-z0-9.-]*)?$')
def isSafeUsername(user):
match = _ACCEPTABLE_USER_RE.match(user)