Fix ssh regenconf hook

conf/ssh_regenconf_hook

@@ -1,50 +1,21 @@
 #!/bin/bash
 
-force=${2:-0}  # 0/1 --force argument
-dryrun=${3:-0}  # 0/1 --dry-run argument
-pending_conf=$4 # Path of the pending conf file
+action=$1
+pending_dir=$4
+ssh_conf=$pending_dir/../ssh/etc/ssh/sshd_config
 
-# https://github.com/YunoHost/yunohost/blob/c7eaeca6486e6240c832b8863791f8b03520a0f0/data/hooks/conf_regen/43-dnsmasq
+[[ $action == "pre" ]] || exit 0
+[[ -e $ssh_conf ]] || exit 0
 
-do_pre_regen() {
-    if [ $dryrun -eq 0 ]
-    then
-        # Remove added lines into the sshd config
-        sed -i "/##-> __APP__/,/##<- __APP__/d" /etc/ssh/sshd_config
-    fi
-}
+echo "
 
-do_post_regen() {
-    # Harden SSH connection for the user
-    if ! grep --quiet "^##-> __APP__$" /etc/ssh/sshd_config
-    then
-        echo "##-> __APP__
-    # Hardening user connection
-    Match User __USER__
+##-> __APP__
+# Hardening user connection
+Match User __USER__
     ChrootDirectory %h
     ForceCommand internal-sftp
     AllowTcpForwarding no
     PermitTunnel no
     X11Forwarding no
     PasswordAuthentication yes
-##<- __APP__" | tee -a "/etc/ssh/sshd_config" >/dev/null
-
-        # Reload sshd
-        systemctl reload ssh
-   fi
-}
-
-case "$1" in
-    pre)
-        do_pre_regen
-        ;;
-    post)
-        do_post_regen
-        ;;
-    *)
-        echo "Hook called with unknown argument \`$1'" >&2
-        exit 1
-        ;;
-esac
-
-exit 0
+##<- __APP__" >> $ssh_conf