diff --git a/letsencrypt_auto/letsencrypt-auto.template b/letsencrypt_auto/letsencrypt-auto.template index bb48b39fe..5334e1f26 100755 --- a/letsencrypt_auto/letsencrypt-auto.template +++ b/letsencrypt_auto/letsencrypt-auto.template @@ -15,6 +15,42 @@ VENV_PATH=${VENV_PATH:-"$XDG_DATA_HOME/$VENV_NAME"} VENV_BIN=${VENV_PATH}/bin LE_AUTO_VERSION="{{ LE_AUTO_VERSION }}" +# letsencrypt-auto needs root access to bootstrap OS dependencies, and +# letsencrypt itself needs root access for almost all modes of operation +# The "normal" case is that sudo is used for the steps that need root, but +# this script *can* be run as root (not recommended), or fall back to using +# `su` +if test "`id -u`" -ne "0" ; then + if command -v sudo 1>/dev/null 2>&1; then + SUDO=sudo + else + echo \"sudo\" is not available, will use \"su\" for installation steps... + # Because the parameters in `su -c` has to be a string, + # we need properly escape it + su_sudo() { + args="" + # This `while` loop iterates over all parameters given to this function. + # For each parameter, all `'` will be replace by `'"'"'`, and the escaped string + # will be wrapped in a pair of `'`, then appended to `$args` string + # For example, `echo "It's only 1\$\!"` will be escaped to: + # 'echo' 'It'"'"'s only 1$!' + # │ │└┼┘│ + # │ │ │ └── `'s only 1$!'` the literal string + # │ │ └── `\"'\"` is a single quote (as a string) + # │ └── `'It'`, to be concatenated with the strings following it + # └── `echo` wrapped in a pair of `'`, it's totally fine for the shell command itself + while [ $# -ne 0 ]; do + args="$args'$(printf "%s" "$1" | sed -e "s/'/'\"'\"'/g")' " + shift + done + su root -c "$args" + } + SUDO=su_sudo + fi +else + SUDO= +fi + ExperimentalBootstrap() { # Arguments: Platform name, bootstrap function name if [ "$DEBUG" = 1 ]; then @@ -120,42 +156,6 @@ for arg in "$@" ; do fi done -# letsencrypt-auto needs root access to bootstrap OS dependencies, and -# letsencrypt itself needs root access for almost all modes of operation -# The "normal" case is that sudo is used for the steps that need root, but -# this script *can* be run as root (not recommended), or fall back to using -# `su` -if test "`id -u`" -ne "0" ; then - if command -v sudo 1>/dev/null 2>&1; then - SUDO=sudo - else - echo \"sudo\" is not available, will use \"su\" for installation steps... - # Because the parameters in `su -c` has to be a string, - # we need properly escape it - su_sudo() { - args="" - # This `while` loop iterates over all parameters given to this function. - # For each parameter, all `'` will be replace by `'"'"'`, and the escaped string - # will be wrapped in a pair of `'`, then appended to `$args` string - # For example, `echo "It's only 1\$\!"` will be escaped to: - # 'echo' 'It'"'"'s only 1$!' - # │ │└┼┘│ - # │ │ │ └── `'s only 1$!'` the literal string - # │ │ └── `\"'\"` is a single quote (as a string) - # │ └── `'It'`, to be concatenated with the strings following it - # └── `echo` wrapped in a pair of `'`, it's totally fine for the shell command itself - while [ $# -ne 0 ]; do - args="$args'$(printf "%s" "$1" | sed -e "s/'/'\"'\"'/g")' " - shift - done - su root -c "$args" - } - SUDO=su_sudo - fi -else - SUDO= -fi - if [ "$1" = "--no-self-upgrade" ]; then # Phase 2: Create venv, install LE, and run.