samba: Compatibility mode & upgrades (#1244)

* samba: Compatibility mode & upgrades

* samba: Add missing newline to nmbd service

* Update build.json

Co-authored-by: Pascal Vizeli <pvizeli@syshack.ch>

samba/rootfs/etc/cont-init.d/samba.sh

@@ -0,0 +1,65 @@
+#!/usr/bin/with-contenv bashio
+# ==============================================================================
+# Prepare the Samba service for running
+# ==============================================================================
+readonly CONF="/etc/samba/smb.conf"
+declare allow_hosts
+declare compatibility_mode
+declare delete_veto_files
+declare name
+declare password
+declare username
+declare veto_files
+
+# Check Login data
+if ! bashio::config.has_value 'username' || ! bashio::config.has_value 'password'; then
+    bashio::exit.nok "Setting a username and password is required!"
+fi
+
+# Workgroup and interface
+sed -i "s|%%WORKGROUP%%|$(bashio::config 'workgroup')|g" "${CONF}"
+sed -i "s|%%INTERFACE%%|$(bashio::config 'interface')|g" "${CONF}"
+
+# Veto files
+veto_files=""
+delete_veto_files="no"
+if bashio::config.has_value 'veto_files'; then
+    veto_files=$(bashio::config "veto_files | join(\"/\")")
+    veto_files="/${veto_files}/"
+    delete_veto_files="yes"
+fi
+sed -i "s|%%VETO_FILES%%|${veto_files}|g" "${CONF}"
+sed -i "s|%%DELETE_VETO_FILES%%|${delete_veto_files}|g" "${CONF}"
+
+# Read hostname from API or setting default "hassio"
+name=$(bashio::info.hostname)
+if bashio::var.is_empty "${name}"; then
+    bashio::log.warning "Can't read hostname, using default."
+    name="hassio"
+fi
+bashio::log.info "Hostname: ${name}"
+sed -i "s|%%NAME%%|${name}|g" "${CONF}"
+
+# Allowed hosts
+allow_hosts=$(bashio::config "allow_hosts | join(\" \")")
+sed -i "s#%%ALLOW_HOSTS%%#${allow_hosts}#g" "${CONF}"
+
+# Compatibility mode, enables the use of the legacy SMB1 protocol
+compatibility_mode=""
+if bashio::config.true "compatibility_mode"; then
+    compatibility_mode+="   client min protocol = NT1\n"
+    compatibility_mode+="   server min protocol = NT1\n"
+fi
+sed -i "s#%%COMPATIBILITY_MODE%%#${compatibility_mode}#g" "${CONF}"
+
+# Init user
+username=$(bashio::config 'username')
+password=$(bashio::config 'password')
+
+addgroup "${username}"
+adduser -D -H -G "${username}" -s /bin/false "${username}"
+
+sed -i "s|%%USERNAME%%|${username}|g" "${CONF}"
+# shellcheck disable=SC1117
+echo -e "${password}\n${password}" \
+    | smbpasswd -a -s -c "${CONF}" "${username}"