diff options
| -rwxr-xr-x | gitwrapper.sh | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/gitwrapper.sh b/gitwrapper.sh new file mode 100755 index 0000000..f619143 --- /dev/null +++ b/gitwrapper.sh @@ -0,0 +1,39 @@ +#!/bin/bash + +# gitwrapper.sh +# +# A wrapper for the 'git upload-pack' command +# to automatically create repositories if they are +# pushed to +# +# Set command="" in .ssh/authorized_keys: +# +# command="/path/to/wrapper.sh myrepos" ssh-rsa ... user@example +# + +[ -z "$1" ] && >&2 echo Invalid configuration in authorized_keys && exit 1 +ALLOWED_REPODIR="$1" + +if [ -z "$SSH_ORIGINAL_COMMAND" ]; then + bash + exit $? +fi + +repo_path=$(sed -n 's/^git upload-pack \(.*\)$/\1/p' <<< "$SSH_ORIGINAL_COMMAND") +if [ ! -z "$repo_path" ]; then + if grep -q '\.\.' <<< "$repo_path"; then + >&2 echo Invalid file name. + exit 1 + fi + + reponame_regex='^\w+\.git$' + if [ "$(dirname "$repo_path")" != "$ALLOWED_REPODIR" ] || \ + [[ ! "$(basename "$repo_path")" =~ $reponame_regex ]]; then + >&2 echo Invalid repository + exit 1 + fi + + [ ! -e "$repo_path" ] && git init --bare "$repo_path" +fi + +eval $SSH_ORIGINAL_COMMAND |