windows/src/samba.sh

#!/usr/bin/env bash
set -Eeuo pipefail

: "${SAMBA:="Y"}"        # Enable Samba
: "${SAMBA_DEBUG:="N"}"  # Disable debug
: "${SAMBA_LEVEL:="1"}"  # Debug log level

rm -rf /var/run/wsdd.pid

[[ "$SAMBA" == [Nn]* ]] && return 0
[[ "$NETWORK" == [Nn]* ]] && return 0

hostname="host.lan"
interface="dockerbridge"

if [[ "$DHCP" == [Yy1]* ]]; then
  hostname="$IP"
  interface="$VM_NET_DEV"
fi

if [[ "${NETWORK,,}" == "user"* ]]; then
  interface="127.0.0.1"
fi

html "Initializing shared folder..."
[[ "$DEBUG" == [Yy1]* ]] && echo "Starting Samba daemon..."

addShare() {
  local dir="$1"
  local name="$2"
  local comment="$3"

  mkdir -p "$dir" || return 1
  ls -A "$dir" >/dev/null 2>&1 || return 1

  if [ -z "$(ls -A "$dir")" ]; then

    chmod 777 "$dir" || return 1

    {      echo "--------------------------------------------------------"
            echo " $APP for Docker v$(</run/version)..."
            echo " For support visit $SUPPORT"
            echo "--------------------------------------------------------"
            echo ""
            echo "Using this folder you can exchange files with the host machine."
            echo ""
            echo "To select the folder you want to share, include the following bind mount in your compose file:"
            echo ""
            echo "  volumes:"
            echo "    - \"./example:/${name,,}\""
            echo ""
            echo "Or in your run command:"
            echo ""
            echo "  -v \"\${PWD:-.}/example:/${name,,}\""
            echo ""
            echo "Replace the example path ./example with your desired shared folder."
            echo ""
    } | unix2dos > "$dir/readme.txt"

  fi

  {      echo ""
          echo "[$name]"
          echo "    path = $dir"
          echo "    comment = $comment"
          echo "    writable = yes"
          echo "    guest ok = yes"
          echo "    guest only = yes"
          echo "    force user = root"
          echo "    force group = root"
  } >> "/etc/samba/smb.conf"

  return 0
}

{      echo "[global]"
        echo "    server string = Dockur"
        echo "    netbios name = $hostname"
        echo "    workgroup = WORKGROUP"
        echo "    interfaces = $interface"
        echo "    bind interfaces only = yes"
        echo "    security = user"
        echo "    guest account = nobody"
        echo "    map to guest = Bad User"
        echo "    server min protocol = NT1"
        echo "    follow symlinks = yes"
        echo "    wide links = yes"
        echo "    unix extensions = no"
        echo ""
        echo "    # disable printing services"
        echo "    load printers = no"
        echo "    printing = bsd"
        echo "    printcap name = /dev/null"
        echo "    disable spoolss = yes"
} > "/etc/samba/smb.conf"

share="/data"
[ ! -d "$share" ] && [ -d "$STORAGE/data" ] && share="$STORAGE/data"
[ ! -d "$share" ] && [ -d "/shared" ] && share="/shared"
[ ! -d "$share" ] && [ -d "$STORAGE/shared" ] && share="$STORAGE/shared"

if ! addShare "$share" "Data" "Shared"; then
  error "Failed to add shared folder '$share'. Please check its permissions." && return 0
fi

if [ -d "/data2" ]; then
  addShare "/data2" "Data2" "Shared" || error "Failed to add shared folder '/data2'. Please check its permissions."
fi

if [ -d "/data3" ]; then
  addShare "/data3" "Data3" "Shared" || error "Failed to add shared folder '/data3'. Please check its permissions."
fi

IFS=',' read -r -a dirs <<< "${SHARES:-}"
for dir in "${dirs[@]}"; do
  [ ! -d "$dir" ] && continue
  dir_name=$(basename "$dir")
  addShare "$dir" "$dir_name" "Shared $dir_name" || error "Failed to create shared folder for $dir!"
done

# Try to repair Samba permissions
[ -d /run/samba/msg.lock ] && chmod -R 0755 /run/samba/msg.lock 2>/dev/null || :
[ -d /var/log/samba/cores ] && chmod -R 0700 /var/log/samba/cores 2>/dev/null || :
[ -d /var/cache/samba/msg.lock ] && chmod -R 0755 /var/cache/samba/msg.lock 2>/dev/null || :

rm -f /var/log/samba/log.smbd

if ! smbd -l /var/log/samba; then
  SAMBA_DEBUG="Y"
  error "Failed to start Samba daemon!"
fi

if [[ "$SAMBA_DEBUG" == [Yy1]* ]]; then
  tail -fn +0 /var/log/samba/log.smbd &
fi

if [[ "${BOOT_MODE:-}" == "windows_legacy" ]]; then

  # Enable NetBIOS on Windows 7 and lower
  [[ "$DEBUG" == [Yy1]* ]] && echo "Starting NetBIOS daemon..."

  rm -f /var/log/samba/log.nmbd

  if ! nmbd -l /var/log/samba; then
    SAMBA_DEBUG="Y"
    error "Failed to start NetBIOS daemon!"
  fi

  if [[ "$SAMBA_DEBUG" == [Yy1]* ]]; then
    tail -fn +0 /var/log/samba/log.nmbd &
  fi

else

  # Enable Web Service Discovery on Vista and up
  [[ "$DEBUG" == [Yy1]* ]] && echo "Starting Web Service Discovery daemon..."

  rm -f /var/log/wsddn.log

  if ! wsddn -i "$interface" -H "$hostname" --unixd --log-file=/var/log/wsddn.log --pid-file=/var/run/wsdd.pid; then
    SAMBA_DEBUG="Y"
    error "Failed to start WSDDN daemon!"
  fi

  if [[ "$SAMBA_DEBUG" == [Yy1]* ]]; then
    tail -fn +0 /var/log/wsddn.log &
  fi

fi

return 0