From 71f7ca9b3b927b440fd424cfa9a5bf78943b5e04 Mon Sep 17 00:00:00 2001
From: 4s3ti <4s3ti@4s3ti.net>
Date: Sat, 8 Oct 2022 01:11:10 +0200
Subject: [PATCH] refactor(scripts): Structure code as per codestyle

Fix #1636
Refactor code according to code style
Constants, Functions, Script
---
 scripts/backup.sh                |  85 ++++++------
 scripts/openvpn/clientStat.sh    |  10 +-
 scripts/openvpn/listOVPN.sh      |   3 +-
 scripts/openvpn/makeOVPN.sh      | 228 +++++++++++++++----------------
 scripts/openvpn/pivpn.sh         |  22 +--
 scripts/openvpn/pivpnDebug.sh    |  10 +-
 scripts/openvpn/removeOVPN.sh    |  14 +-
 scripts/pivpn                    |  34 ++---
 scripts/self_check.sh            |   3 +
 scripts/uninstall.sh             | 125 ++++++++---------
 scripts/update.sh                |  39 +++---
 scripts/wireguard/clientSTAT.sh  |  13 +-
 scripts/wireguard/disableCONF.sh |  18 +--
 scripts/wireguard/enableCONF.sh  |  21 +--
 scripts/wireguard/listCONF.sh    |   3 +
 scripts/wireguard/makeCONF.sh    |  21 +--
 scripts/wireguard/pivpn.sh       |  29 ++--
 scripts/wireguard/pivpnDEBUG.sh  |  14 +-
 scripts/wireguard/qrcodeCONF.sh  |   6 +-
 scripts/wireguard/removeCONF.sh  |  21 +--
 20 files changed, 377 insertions(+), 342 deletions(-)

diff --git a/scripts/backup.sh b/scripts/backup.sh
index 23c2377..7f7f61f 100755
--- a/scripts/backup.sh
+++ b/scripts/backup.sh
@@ -1,15 +1,12 @@
 #!/bin/bash
 # PiVPN: Backup Script
 
+### Constants
 # Find the rows and columns. Will default to 80x24 if it can not be detected.
 screen_size="$(stty size 2> /dev/null || echo 24 80)"
 rows="$(echo "${screen_size}" | awk '{print $1}')"
 columns="$(echo "${screen_size}" | awk '{print $2}')"
 
-err() {
-  echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
-}
-
 # Divide by two so the dialogs take up half of the screen, which looks nice.
 r=$((rows / 2))
 c=$((columns / 2))
@@ -24,6 +21,49 @@ setupConfigDir="/etc/pivpn"
 
 CHECK_PKG_INSTALLED='dpkg-query -s'
 
+### Functions
+err() {
+  echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
+}
+
+checkbackupdir() {
+  # Disabling shellcheck error $install_home sourced from $setupVars
+  # shellcheck disable=SC2154
+  mkdir -p "${install_home}/${backupdir}"
+}
+
+backup_openvpn() {
+  openvpndir=/etc/openvpn
+  ovpnsdir="${install_home}/ovpns"
+  backupzip="${date}-pivpnovpnbackup.tgz"
+
+  checkbackupdir
+  # shellcheck disable=SC2210
+  tar czpf "${install_home}/${backupdir}/${backupzip}" "${openvpndir}" \
+    "${ovpnsdir}" > /dev/null 2>&1
+
+  echo -e "Backup created in ${install_home}/${backupdir}/${backupzip} "
+  echo -e "To restore the backup, follow instructions at:"
+  echo -ne "https://docs.pivpn.io/openvpn/"
+  echo -e "#migrating-pivpn-openvpn"
+}
+
+backup_wireguard() {
+  wireguarddir=/etc/wireguard
+  configsdir="${install_home}/configs"
+  backupzip="${date}-pivpnwgbackup.tgz"
+
+  checkbackupdir
+  tar czpf "${install_home}/${backupdir}/${backupzip}" "${wireguarddir}" \
+    "${configsdir}" > /dev/null 2>&1
+
+  echo -e "Backup created in ${install_home}/${backupdir}/${backupzip} "
+  echo -e "To restore the backup, follow instructions at:"
+  echo -ne "https://docs.pivpn.io/openvpn/"
+  echo -e "wireguard/#migrating-pivpn-wireguard"
+}
+
+### Script
 if [[ -r "${setupConfigDir}/wireguard/${setupVarsFile}" ]] \
   && [[ -r "${setupConfigDir}/openvpn/${setupVarsFile}" ]]; then
   # Two protocols have been installed, check if the script has passed
@@ -73,43 +113,6 @@ if [[ "${PLAT}" == 'Alpine' ]]; then
   CHECK_PKG_INSTALLED='apk --no-cache info -e'
 fi
 
-checkbackupdir() {
-  # Disabling shellcheck error $install_home sourced from $setupVars
-  # shellcheck disable=SC2154
-  mkdir -p "${install_home}/${backupdir}"
-}
-
-backup_openvpn() {
-  openvpndir=/etc/openvpn
-  ovpnsdir="${install_home}/ovpns"
-  backupzip="${date}-pivpnovpnbackup.tgz"
-
-  checkbackupdir
-  # shellcheck disable=SC2210
-  tar czpf "${install_home}/${backupdir}/${backupzip}" "${openvpndir}" \
-    "${ovpnsdir}" > /dev/null 2>&1
-
-  echo -e "Backup created in ${install_home}/${backupdir}/${backupzip} "
-  echo -e "To restore the backup, follow instructions at:"
-  echo -ne "https://docs.pivpn.io/openvpn/"
-  echo -e "#migrating-pivpn-openvpn"
-}
-
-backup_wireguard() {
-  wireguarddir=/etc/wireguard
-  configsdir="${install_home}/configs"
-  backupzip="${date}-pivpnwgbackup.tgz"
-
-  checkbackupdir
-  tar czpf "${install_home}/${backupdir}/${backupzip}" "${wireguarddir}" \
-    "${configsdir}" > /dev/null 2>&1
-
-  echo -e "Backup created in ${install_home}/${backupdir}/${backupzip} "
-  echo -e "To restore the backup, follow instructions at:"
-  echo -ne "https://docs.pivpn.io/openvpn/"
-  echo -e "wireguard/#migrating-pivpn-wireguard"
-}
-
 if [[ "${EUID}" -ne 0 ]]; then
   if ${CHECK_PKG_INSTALLED} sudo &> /dev/null; then
     export SUDO="sudo"
diff --git a/scripts/openvpn/clientStat.sh b/scripts/openvpn/clientStat.sh
index b2da6f8..e7f6827 100755
--- a/scripts/openvpn/clientStat.sh
+++ b/scripts/openvpn/clientStat.sh
@@ -3,11 +3,6 @@
 
 STATUS_LOG="/var/log/openvpn-status.log"
 
-if [[ ! -f "${STATUS_LOG}" ]]; then
-  err "The file: ${STATUS_LOG} was not found!"
-  exit 1
-fi
-
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
@@ -72,6 +67,11 @@ listClients() {
   } | column -t -s $'\t'
 }
 
+if [[ ! -f "${STATUS_LOG}" ]]; then
+  err "The file: ${STATUS_LOG} was not found!"
+  exit 1
+fi
+
 if [[ "$#" -eq 0 ]]; then
   HR=1
   listClients
diff --git a/scripts/openvpn/listOVPN.sh b/scripts/openvpn/listOVPN.sh
index ccba5d3..96af300 100755
--- a/scripts/openvpn/listOVPN.sh
+++ b/scripts/openvpn/listOVPN.sh
@@ -4,6 +4,7 @@
 # Clean up Escape Seq -- psgoundar
 
 INDEX="/etc/openvpn/easy-rsa/pki/index.txt"
+EASYRSA="/etc/openvpn/easy-rsa/easyrsa"
 
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
@@ -14,8 +15,6 @@ if [[ ! -f "${INDEX}" ]]; then
   exit 1
 fi
 
-EASYRSA="/etc/openvpn/easy-rsa/easyrsa"
-
 if [[ ! -f "${EASYRSA}" ]]; then
   err "The file: ${EASYRSA} was not found!"
   exit 1
diff --git a/scripts/openvpn/makeOVPN.sh b/scripts/openvpn/makeOVPN.sh
index dc27999..811f88e 100755
--- a/scripts/openvpn/makeOVPN.sh
+++ b/scripts/openvpn/makeOVPN.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
-
 # Create OVPN Client
-# Default Variable Declarations
+
+### Constants
 setupVars="/etc/pivpn/openvpn/setupVars.conf"
 DEFAULT="Default.txt"
 FILEEXT=".ovpn"
@@ -14,15 +14,11 @@ INDEX="/etc/openvpn/easy-rsa/pki/index.txt"
 # shellcheck disable=SC1090
 source "${setupVars}"
 
+## Functions
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
 
-if [[ ! -f "${setupVars}" ]]; then
-  err "::: Missing setup vars file!"
-  exit 1
-fi
-
 helpFunc() {
   echo "::: Create a client ovpn profile, optional nopass"
   echo ":::"
@@ -67,7 +63,117 @@ checkName() {
     err "::: You cannot leave the name blank."
     exit 1
   fi
-}  
+}
+
+keynoPASS() {
+  # Build the client key
+  export EASYRSA_CERT_EXPIRE="${DAYS}"
+  ./easyrsa build-client-full "${NAME}" nopass
+  cd pki || exit
+}
+
+useBitwarden() {
+  # login and unlock vault
+  printf "****Bitwarden Login****"
+  printf "\n"
+
+  SESSION_KEY="$(bw login --raw)"
+  export BW_SESSION="${SESSION_KEY}"
+
+  printf "Successfully Logged in!"
+  printf "\n"
+
+  # ask user for username
+  printf "Enter the username:  "
+  read -r NAME
+
+  #check name
+  checkName
+
+  # ask user for length of password
+  printf "Please enter the length of characters you want your password to be "
+  printf "(minimum 12): "
+  read -r LENGTH
+
+  # check length
+  until [[ "${LENGTH}" -gt 11 ]] && [[ "${LENGTH}" -lt 129 ]]; do
+    echo "Password must be between from 12 to 128 characters, please try again."
+    # ask user for length of password
+    printf "Please enter the length of characters you want your password to be "
+    printf "(minimum 12): "
+    read -r LENGTH
+  done
+
+  printf "Creating a PiVPN item for your vault..."
+  printf "\n"
+
+  # create a new item for your PiVPN Password
+  PASSWD="$(bw generate -usln --length "${LENGTH}")"
+  bw get template item \
+    | jq '.login.type = "1"' \
+    | jq '.name = "PiVPN"' \
+    | jq -r --arg NAME "${NAME}" '.login.username = $NAME' \
+    | jq -r --arg PASSWD "${PASSWD}" '.login.password = $PASSWD' \
+    | bw encode \
+    | bw create item
+  bw logout
+}
+
+keyPASS() {
+  if [[ -z "${PASSWD}" ]]; then
+    stty -echo
+
+    while true; do
+      printf "Enter the password for the client:  "
+      read -r PASSWD
+      printf "\n"
+      printf "Enter the password again to verify:  "
+      read -r PASSWD2
+      printf "\n"
+
+      [[ "${PASSWD}" == "${PASSWD2}" ]] && break
+
+      printf "Passwords do not match! Please try again.\n"
+    done
+
+    stty echo
+
+    if [[ -z "${PASSWD}" ]]; then
+      err "You left the password blank"
+      err "If you don't want a password, please run:"
+      err "pivpn add nopass"
+      exit 1
+    fi
+  fi
+
+  if [[ "${#PASSWD}" -lt 4 ]] || [[ "${#PASSWD}" -gt 1024 ]]; then
+    err "Password must be between from 4 to 1024 characters"
+    exit 1
+  fi
+
+  export EASYRSA_CERT_EXPIRE="${DAYS}"
+  ./easyrsa --passin=pass:"${PASSWD}" \
+    --passout=pass:"${PASSWD}" \
+    build-client-full "${NAME}"
+
+  cd pki || exit
+}
+
+cidrToMask() {
+  # Source: https://stackoverflow.com/a/20767392
+  set -- $((5 - (${1} / 8))) \
+    255 255 255 255 \
+    $(((255 << (8 - (${1} % 8))) & 255)) \
+    0 0 0
+  shift "${1}"
+  echo "${1-0}.${2-0}.${3-0}.${4-0}"
+}
+
+### Script
+if [[ ! -f "${setupVars}" ]]; then
+  err "::: Missing setup vars file!"
+  exit 1
+fi
 
 if [[ -z "${HELP_SHOWN}" ]]; then
   helpFunc
@@ -175,102 +281,6 @@ while [[ "$#" -gt 0 ]]; do
   shift
 done
 
-# Functions def
-
-keynoPASS() {
-  # Build the client key
-  export EASYRSA_CERT_EXPIRE="${DAYS}"
-  ./easyrsa build-client-full "${NAME}" nopass
-  cd pki || exit
-}
-
-useBitwarden() {
-  # login and unlock vault
-  printf "****Bitwarden Login****"
-  printf "\n"
-
-  SESSION_KEY="$(bw login --raw)"
-  export BW_SESSION="${SESSION_KEY}"
-
-  printf "Successfully Logged in!"
-  printf "\n"
-
-  # ask user for username
-  printf "Enter the username:  "
-  read -r NAME
-
-  #check name
-  checkName
-
-  # ask user for length of password
-  printf "Please enter the length of characters you want your password to be "
-  printf "(minimum 12): "
-  read -r LENGTH
-
-  # check length
-  until [[ "${LENGTH}" -gt 11 ]] && [[ "${LENGTH}" -lt 129 ]]; do
-    echo "Password must be between from 12 to 128 characters, please try again."
-    # ask user for length of password
-    printf "Please enter the length of characters you want your password to be "
-    printf "(minimum 12): "
-    read -r LENGTH
-  done
-
-  printf "Creating a PiVPN item for your vault..."
-  printf "\n"
-
-  # create a new item for your PiVPN Password
-  PASSWD="$(bw generate -usln --length "${LENGTH}")"
-  bw get template item \
-    | jq '.login.type = "1"' \
-    | jq '.name = "PiVPN"' \
-    | jq -r --arg NAME "${NAME}" '.login.username = $NAME' \
-    | jq -r --arg PASSWD "${PASSWD}" '.login.password = $PASSWD' \
-    | bw encode \
-    | bw create item
-  bw logout
-}
-
-keyPASS() {
-  if [[ -z "${PASSWD}" ]]; then
-    stty -echo
-
-    while true; do
-      printf "Enter the password for the client:  "
-      read -r PASSWD
-      printf "\n"
-      printf "Enter the password again to verify:  "
-      read -r PASSWD2
-      printf "\n"
-
-      [[ "${PASSWD}" == "${PASSWD2}" ]] && break
-
-      printf "Passwords do not match! Please try again.\n"
-    done
-
-    stty echo
-
-    if [[ -z "${PASSWD}" ]]; then
-      err "You left the password blank"
-      err "If you don't want a password, please run:"
-      err "pivpn add nopass"
-      exit 1
-    fi
-  fi
-
-  if [[ "${#PASSWD}" -lt 4 ]] || [[ "${#PASSWD}" -gt 1024 ]]; then
-    err "Password must be between from 4 to 1024 characters"
-    exit 1
-  fi
-
-  export EASYRSA_CERT_EXPIRE="${DAYS}"
-  ./easyrsa --passin=pass:"${PASSWD}" \
-    --passout=pass:"${PASSWD}" \
-    build-client-full "${NAME}"
-
-  cd pki || exit
-}
-
 #make sure ovpns dir exists
 # Disabling warning for SC2154, var sourced externaly
 # shellcheck disable=SC2154
@@ -456,16 +466,6 @@ if [[ "${iOS}" == 1 ]]; then
   printf "========================================================\n\n"
 fi
 
-cidrToMask() {
-  # Source: https://stackoverflow.com/a/20767392
-  set -- $((5 - (${1} / 8))) \
-    255 255 255 255 \
-    $(((255 << (8 - (${1} % 8))) & 255)) \
-    0 0 0
-  shift "${1}"
-  echo "${1-0}.${2-0}.${3-0}.${4-0}"
-}
-
 #disabling SC2514, variable sourced externaly
 # shellcheck disable=SC2154
 NET_REDUCED="${pivpnNET::-2}"
diff --git a/scripts/openvpn/pivpn.sh b/scripts/openvpn/pivpn.sh
index b67321a..0b85bd8 100755
--- a/scripts/openvpn/pivpn.sh
+++ b/scripts/openvpn/pivpn.sh
@@ -1,24 +1,16 @@
 #!/bin/bash
 
+### Constants
 CHECK_PKG_INSTALLED='dpkg-query -s'
 
 if grep -qsEe "^NAME\=['\"]?Alpine[a-zA-Z ]*['\"]?$" /etc/os-release; then
   CHECK_PKG_INSTALLED='apk --no-cache info -e'
 fi
 
-# Must be root to use this tool
-if [[ "${EUID}" -ne 0 ]]; then
-  if ${CHECK_PKG_INSTALLED} sudo &> /dev/null; then
-    export SUDO="sudo"
-  else
-    err "::: Please install sudo or run this as root."
-    exit 1
-  fi
-fi
-
 scriptDir="/opt/pivpn"
 vpn="openvpn"
 
+### Functions
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
@@ -92,6 +84,16 @@ helpFunc() {
   exit 0
 }
 
+# Must be root to use this tool
+if [[ "${EUID}" -ne 0 ]]; then
+  if ${CHECK_PKG_INSTALLED} sudo &> /dev/null; then
+    export SUDO="sudo"
+  else
+    err "::: Please install sudo or run this as root."
+    exit 1
+  fi
+fi
+
 if [[ "$#" == 0 ]]; then
   helpFunc
 fi
diff --git a/scripts/openvpn/pivpnDebug.sh b/scripts/openvpn/pivpnDebug.sh
index bff2b8f..509401e 100755
--- a/scripts/openvpn/pivpnDebug.sh
+++ b/scripts/openvpn/pivpnDebug.sh
@@ -1,20 +1,22 @@
 #!/bin/bash
 # This scripts runs as root
-
+### Contants
 setupVars="/etc/pivpn/openvpn/setupVars.conf"
 
+# shellcheck disable=SC1090
+source "${setupVars}"
+
+### Functions
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
 
+### Script
 if [[ ! -f "${setupVars}" ]]; then
   err "::: Missing setup vars file!"
   exit 1
 fi
 
-# shellcheck disable=SC1090
-source "${setupVars}"
-
 echo -e "::::\t\t\e[4mPiVPN debug\e[0m\t\t ::::"
 printf "=============================================\n"
 echo -e "::::\t\t\e[4mLatest commit\e[0m\t\t ::::"
diff --git a/scripts/openvpn/removeOVPN.sh b/scripts/openvpn/removeOVPN.sh
index 168a53b..f6ce765 100755
--- a/scripts/openvpn/removeOVPN.sh
+++ b/scripts/openvpn/removeOVPN.sh
@@ -1,17 +1,13 @@
 #!/bin/bash
 # PiVPN: revoke client script
 
+### Constants
 setupVars="/etc/pivpn/openvpn/setupVars.conf"
 INDEX="/etc/openvpn/easy-rsa/pki/index.txt"
-
-if [[ ! -f "${setupVars}" ]]; then
-  err "::: Missing setup vars file!"
-  exit 1
-fi
-
 # shellcheck disable=SC1090
 source "${setupVars}"
 
+### Functions
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
@@ -29,6 +25,12 @@ helpFunc() {
   echo ":::  -h,--help            Show this help dialog"
 }
 
+### Script
+if [[ ! -f "${setupVars}" ]]; then
+  err "::: Missing setup vars file!"
+  exit 1
+fi
+
 # Parse input arguments
 while [[ "$#" -gt 0 ]]; do
   _key="${1}"
diff --git a/scripts/pivpn b/scripts/pivpn
index 4f3b367..077a59b 100755
--- a/scripts/pivpn
+++ b/scripts/pivpn
@@ -1,27 +1,14 @@
 #!/bin/bash
 
+### Constants
 CHECK_PKG_INSTALLED='dpkg-query -s'
+scriptDir="/opt/pivpn"
 
+### Functions
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
 
-if grep -qsEe "^NAME\=['\"]?Alpine[a-zA-Z ]*['\"]?$" /etc/os-release; then
-  CHECK_PKG_INSTALLED='apk --no-cache info -e'
-fi
-
-# Must be root to use this tool
-if [[ "${EUID}" -ne 0 ]]; then
-  if ${CHECK_PKG_INSTALLED} sudo &> /dev/null; then
-    export SUDO="sudo"
-  else
-    err "::: Please install sudo or run this as root."
-    exit 1
-  fi
-fi
-
-scriptDir="/opt/pivpn"
-
 uninstallServer() {
   ${SUDO} "${scriptDir}/uninstall.sh"
   exit "${?}"
@@ -44,6 +31,21 @@ showHelp() {
   exit 0
 }
 
+### Script
+# Must be root to use this tool
+if [[ "${EUID}" -ne 0 ]]; then
+  if ${CHECK_PKG_INSTALLED} sudo &> /dev/null; then
+    export SUDO="sudo"
+  else
+    err "::: Please install sudo or run this as root."
+    exit 1
+  fi
+fi
+
+if grep -qsEe "^NAME\=['\"]?Alpine[a-zA-Z ]*['\"]?$" /etc/os-release; then
+  CHECK_PKG_INSTALLED='apk --no-cache info -e'
+fi
+
 if [[ "$#" == 0 ]]; then
   showHelp
 fi
diff --git a/scripts/self_check.sh b/scripts/self_check.sh
index 6b0ed1f..28c1c2a 100755
--- a/scripts/self_check.sh
+++ b/scripts/self_check.sh
@@ -1,5 +1,6 @@
 #!/bin/bash
 
+### Constants
 PLAT="$(grep -sEe '^NAME\=' /etc/os-release \
   | sed -E -e "s/NAME\=[\'\"]?([^ ]*).*/\1/")"
 
@@ -8,10 +9,12 @@ VPN="${1}"
 setupVars="/etc/pivpn/${VPN}/setupVars.conf"
 ERR=0
 
+### Functions
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
 
+### Script
 if [[ ! -f "${setupVars}" ]]; then
   err "::: Missing setup vars file!"
   exit 1
diff --git a/scripts/uninstall.sh b/scripts/uninstall.sh
index af6c51f..e6e3f90 100755
--- a/scripts/uninstall.sh
+++ b/scripts/uninstall.sh
@@ -1,11 +1,7 @@
 #!/bin/bash
 # PiVPN: Uninstall Script
 
-### FIXME:
-###   global: config storage, refactor all scripts to adhere to the storage
-### FIXME:
-###   use variables where appropriate, reduce magic numbers by 99.9%, at least.
-
+### Constants
 # Find the rows and columns. Will default to 80x24 if it can not be detected.
 screen_size="$(stty size 2> /dev/null || echo 24 80)"
 rows="$(echo "${screen_size}" | awk '{print $1}')"
@@ -25,70 +21,15 @@ setupVarsFile="setupVars.conf"
 setupConfigDir="/etc/pivpn"
 pivpnFilesDir="/usr/local/src/pivpn"
 pivpnScriptDir="/opt/pivpn"
+PLAT="$(grep -sEe '^NAME\=' /etc/os-release \
+  | sed -E -e "s/NAME\=[\'\"]?([^ ]*).*/\1/")"
+UPDATE_PKG_CACHE="${PKG_MANAGER} update"
 
+### Functions
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
 
-PLAT="$(grep -sEe '^NAME\=' /etc/os-release \
-  | sed -E -e "s/NAME\=[\'\"]?([^ ]*).*/\1/")"
-
-if [[ "${PLAT}" == 'Alpine' ]]; then
-  PKG_MANAGER='apk'
-  PKG_REMOVE="${PKG_MANAGER} --no-cache --purge del -r"
-fi
-
-UPDATE_PKG_CACHE="${PKG_MANAGER} update"
-
-if [[ -r "${setupConfigDir}/wireguard/${setupVarsFile}" ]] \
-  && [[ -r "${setupConfigDir}/openvpn/${setupVarsFile}" ]]; then
-  vpnStillExists=1
-
-  # Two protocols have been installed, check if the script has passed
-  # an argument, otherwise ask the user which one he wants to remove
-  if [[ "$#" -ge 1 ]]; then
-    VPN="${1}"
-    echo "::: Uninstalling VPN: ${VPN}"
-  else
-    chooseVPNCmd=(whiptail
-      --backtitle "Setup PiVPN"
-      --title "Uninstall"
-      --separate-output
-      --radiolist "Both OpenVPN and WireGuard are installed, \
-choose a VPN to uninstall (press space to select):"
-      "${r}" "${c}" 2)
-    VPNChooseOptions=(WireGuard "" on
-      OpenVPN "" off)
-
-    if VPN="$("${chooseVPNCmd[@]}" "${VPNChooseOptions[@]}" 2>&1 \
-      > /dev/tty)"; then
-      echo "::: Uninstalling VPN: ${VPN}"
-      VPN="${VPN,,}"
-    else
-      err "::: Cancel selected, exiting...."
-      exit 1
-    fi
-  fi
-
-  setupVars="${setupConfigDir}/${VPN}/${setupVarsFile}"
-else
-  vpnStillExists=0
-
-  if [[ -r "${setupConfigDir}/wireguard/${setupVarsFile}" ]]; then
-    setupVars="${setupConfigDir}/wireguard/${setupVarsFile}"
-  elif [[ -r "${setupConfigDir}/openvpn/${setupVarsFile}" ]]; then
-    setupVars="${setupConfigDir}/openvpn/${setupVarsFile}"
-  fi
-fi
-
-if [[ ! -f "${setupVars}" ]]; then
-  err "::: Missing setup vars file!"
-  exit 1
-fi
-
-# shellcheck disable=SC1090
-source "${setupVars}"
-
 ### FIXME: introduce global lib
 spinner() {
   local pid="${1}"
@@ -391,7 +332,61 @@ askreboot() {
   fi
 }
 
-######### SCRIPT ###########
+### Script
+if [[ "${PLAT}" == 'Alpine' ]]; then
+  PKG_MANAGER='apk'
+  PKG_REMOVE="${PKG_MANAGER} --no-cache --purge del -r"
+fi
+
+if [[ -r "${setupConfigDir}/wireguard/${setupVarsFile}" ]] \
+  && [[ -r "${setupConfigDir}/openvpn/${setupVarsFile}" ]]; then
+  vpnStillExists=1
+
+  # Two protocols have been installed, check if the script has passed
+  # an argument, otherwise ask the user which one he wants to remove
+  if [[ "$#" -ge 1 ]]; then
+    VPN="${1}"
+    echo "::: Uninstalling VPN: ${VPN}"
+  else
+    chooseVPNCmd=(whiptail
+      --backtitle "Setup PiVPN"
+      --title "Uninstall"
+      --separate-output
+      --radiolist "Both OpenVPN and WireGuard are installed, \
+choose a VPN to uninstall (press space to select):"
+      "${r}" "${c}" 2)
+    VPNChooseOptions=(WireGuard "" on
+      OpenVPN "" off)
+
+    if VPN="$("${chooseVPNCmd[@]}" "${VPNChooseOptions[@]}" 2>&1 \
+      > /dev/tty)"; then
+      echo "::: Uninstalling VPN: ${VPN}"
+      VPN="${VPN,,}"
+    else
+      err "::: Cancel selected, exiting...."
+      exit 1
+    fi
+  fi
+
+  setupVars="${setupConfigDir}/${VPN}/${setupVarsFile}"
+else
+  vpnStillExists=0
+
+  if [[ -r "${setupConfigDir}/wireguard/${setupVarsFile}" ]]; then
+    setupVars="${setupConfigDir}/wireguard/${setupVarsFile}"
+  elif [[ -r "${setupConfigDir}/openvpn/${setupVarsFile}" ]]; then
+    setupVars="${setupConfigDir}/openvpn/${setupVarsFile}"
+  fi
+fi
+
+if [[ ! -f "${setupVars}" ]]; then
+  err "::: Missing setup vars file!"
+  exit 1
+fi
+
+# shellcheck disable=SC1090
+source "${setupVars}"
+
 echo -n "::: Preparing to remove packages, be sure that each may be safely "
 echo "removed depending on your operating system."
 echo "::: (SAFE TO REMOVE ALL ON RASPBIAN)"
diff --git a/scripts/update.sh b/scripts/update.sh
index 32709bc..f8efe39 100755
--- a/scripts/update.sh
+++ b/scripts/update.sh
@@ -1,7 +1,18 @@
 #!/bin/bash
-
 ### Updates pivpn scripts (Not PiVPN)
-### Main Vars
+# TODO: Delete this section when the updating functionality will be re-enabled
+###
+err() {
+  echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
+}
+
+err "::: The updating functionality for PiVPN scripts is temporarily disabled"
+err "::: To keep the VPN (and the system) up to date, use:"
+err "        apt update; apt upgrade"
+exit 0
+### END SECTION ###
+
+### Constants
 pivpnrepo="https://github.com/pivpn/pivpn.git"
 pivpnlocalpath="/etc/.pivpn"
 pivpnscripts="/opt/pivpn/"
@@ -19,18 +30,6 @@ c=$((columns / 2))
 r=$((r < 20 ? 20 : r))
 c=$((c < 70 ? 70 : c))
 
-# TODO: Delete this section when the updating functionality will be re-enabled
-###
-err() {
-  echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
-}
-
-err "::: The updating functionality for PiVPN scripts is temporarily disabled"
-err "::: To keep the VPN (and the system) up to date, use:"
-err "        apt update; apt upgrade"
-exit 0
-###
-
 chooseVPNCmd=(whiptail
   --backtitle "Setup PiVPN"
   --title "Installation mode"
@@ -50,14 +49,10 @@ fi
 
 setupVars="/etc/pivpn/${VPN}/setupVars.conf"
 
-if [[ ! -f "${setupVars}" ]]; then
-  err "::: Missing setup vars file!"
-  exit 1
-fi
-
 # shellcheck disable=SC1090
 source "${setupVars}"
 
+### Functions
 # TODO: Uncomment this function when the updating functionality
 # will be re-enabled
 #err() {
@@ -75,8 +70,6 @@ scriptusage() {
   echo ":::  -h, help            Show this usage dialog"
 }
 
-### Functions
-## Updates scripts
 updatepivpnscripts() {
   local branch
   branch="${1}"
@@ -126,6 +119,10 @@ cloneandupdate() {
 }
 
 ## SCRIPT
+if [[ ! -f "${setupVars}" ]]; then
+  err "::: Missing setup vars file!"
+  exit 1
+fi
 
 if [[ "$#" -eq 0 ]]; then
   updatepivpnscripts
diff --git a/scripts/wireguard/clientSTAT.sh b/scripts/wireguard/clientSTAT.sh
index f72f265..a7b4320 100755
--- a/scripts/wireguard/clientSTAT.sh
+++ b/scripts/wireguard/clientSTAT.sh
@@ -1,17 +1,14 @@
 #!/bin/bash
 # PiVPN: client status script
 
+### Constants
 CLIENTS_FILE="/etc/wireguard/configs/clients.txt"
 
+### Functions
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
 
-if [[ ! -s "${CLIENTS_FILE}" ]]; then
-  err "::: There are no clients to list"
-  exit 0
-fi
-
 scriptusage() {
   echo "::: List any connected clients to the server"
   echo ":::"
@@ -83,6 +80,12 @@ listClients() {
   grep '\[disabled\] ### begin' wg0.conf | sed 's/#//g; s/begin//'
 }
 
+### Script
+if [[ ! -s "${CLIENTS_FILE}" ]]; then
+  err "::: There are no clients to list"
+  exit 0
+fi
+
 if [[ "$#" -eq 0 ]]; then
   HR=1
   listClients
diff --git a/scripts/wireguard/disableCONF.sh b/scripts/wireguard/disableCONF.sh
index 8043581..bd1220c 100755
--- a/scripts/wireguard/disableCONF.sh
+++ b/scripts/wireguard/disableCONF.sh
@@ -1,19 +1,15 @@
 #!/bin/bash
 
+### Constants
 setupVars="/etc/pivpn/wireguard/setupVars.conf"
+# shellcheck disable=SC1090
+source "${setupVars}"
 
+### Funcions
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
 
-if [[ ! -f "${setupVars}" ]]; then
-  err "::: Missing setup vars file!"
-  exit 1
-fi
-
-# shellcheck disable=SC1090
-source "${setupVars}"
-
 helpFunc() {
   echo "::: Disable client conf profiles"
   echo ":::"
@@ -28,6 +24,12 @@ helpFunc() {
   echo ":::  -h,--help            Show this help dialog"
 }
 
+### Script
+if [[ ! -f "${setupVars}" ]]; then
+  err "::: Missing setup vars file!"
+  exit 1
+fi
+
 # Parse input arguments
 while [[ "$#" -gt 0 ]]; do
   _key="${1}"
diff --git a/scripts/wireguard/enableCONF.sh b/scripts/wireguard/enableCONF.sh
index a7176d9..9d1e555 100755
--- a/scripts/wireguard/enableCONF.sh
+++ b/scripts/wireguard/enableCONF.sh
@@ -1,19 +1,16 @@
 #!/bin/bash
 
+### Constants
 setupVars="/etc/pivpn/wireguard/setupVars.conf"
 
-err() {
-  echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
-}
-
-if [[ ! -f "${setupVars}" ]]; then
-  err "::: Missing setup vars file!"
-  exit 1
-fi
-
 # shellcheck disable=SC1090
 source "${setupVars}"
 
+### Functions
+err() {
+  echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
+}
+
 helpFunc() {
   echo "::: Enables client conf profiles"
   echo ":::"
@@ -28,6 +25,12 @@ helpFunc() {
   echo ":::  -h,--help            Show this help dialog"
 }
 
+### Script
+if [[ ! -f "${setupVars}" ]]; then
+  err "::: Missing setup vars file!"
+  exit 1
+fi
+
 # Parse input arguments
 while [[ "$#" -gt 0 ]]; do
   _key="${1}"
diff --git a/scripts/wireguard/listCONF.sh b/scripts/wireguard/listCONF.sh
index da37b87..3da53f8 100755
--- a/scripts/wireguard/listCONF.sh
+++ b/scripts/wireguard/listCONF.sh
@@ -1,9 +1,12 @@
 #!/bin/bash
+### Constants
 
+### Funcions
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
 
+### Script
 cd /etc/wireguard/configs || exit
 
 if [[ ! -s clients.txt ]]; then
diff --git a/scripts/wireguard/makeCONF.sh b/scripts/wireguard/makeCONF.sh
index 627b3b8..f6488d1 100755
--- a/scripts/wireguard/makeCONF.sh
+++ b/scripts/wireguard/makeCONF.sh
@@ -1,5 +1,6 @@
 #!/bin/bash
 
+### Constantss
 # Some vars that might be empty but need to be defined for checks
 pivpnPERSISTENTKEEPALIVE=""
 pivpnDNS2=""
@@ -8,18 +9,14 @@ setupVars="/etc/pivpn/wireguard/setupVars.conf"
 # shellcheck disable=SC2154
 userGroup="${install_user}:${install_user}"
 
+# shellcheck disable=SC1090
+source "${setupVars}"
+
+### Functions
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
 
-if [[ ! -f "${setupVars}" ]]; then
-  err "::: Missing setup vars file!"
-  exit 1
-fi
-
-# shellcheck disable=SC1090
-source "${setupVars}"
-
 helpFunc() {
   echo "::: Create a client conf profile"
   echo ":::"
@@ -55,7 +52,13 @@ checkName() {
     err "::: A client with this name already exists"
     exit 1
   fi
-}  
+}
+
+### Script
+if [[ ! -f "${setupVars}" ]]; then
+  err "::: Missing setup vars file!"
+  exit 1
+fi
 
 # Parse input arguments
 while [[ "$#" -gt 0 ]]; do
diff --git a/scripts/wireguard/pivpn.sh b/scripts/wireguard/pivpn.sh
index 894caeb..53960c3 100755
--- a/scripts/wireguard/pivpn.sh
+++ b/scripts/wireguard/pivpn.sh
@@ -1,24 +1,16 @@
 #!/bin/bash
 
+### Constants
+
 CHECK_PKG_INSTALLED='dpkg-query -s'
+scriptdir="/opt/pivpn"
+vpn="wireguard"
 
 if grep -qsEe "^NAME\=['\"]?Alpine[a-zA-Z ]*['\"]?$" /etc/os-release; then
   CHECK_PKG_INSTALLED='apk --no-cache info -e'
 fi
 
-# Must be root to use this tool
-if [[ "${EUID}" -ne 0 ]]; then
-  if ${CHECK_PKG_INSTALLED} sudo &> /dev/null; then
-    export SUDO="sudo"
-  else
-    err "::: Please install sudo or run this as root."
-    exit 1
-  fi
-fi
-
-scriptdir="/opt/pivpn"
-vpn="wireguard"
-
+### Functions
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
@@ -114,6 +106,17 @@ showHelp() {
   exit 0
 }
 
+### Script
+# Must be root to use this tool
+if [[ "${EUID}" -ne 0 ]]; then
+  if ${CHECK_PKG_INSTALLED} sudo &> /dev/null; then
+    export SUDO="sudo"
+  else
+    err "::: Please install sudo or run this as root."
+    exit 1
+  fi
+fi
+
 if [[ "$#" == 0 ]]; then
   showHelp
 fi
diff --git a/scripts/wireguard/pivpnDEBUG.sh b/scripts/wireguard/pivpnDEBUG.sh
index 28e44f3..4f77aaf 100755
--- a/scripts/wireguard/pivpnDEBUG.sh
+++ b/scripts/wireguard/pivpnDEBUG.sh
@@ -1,20 +1,26 @@
 #!/bin/bash
-# This scripts runs as root
+
+### Constants
 
 setupVars="/etc/pivpn/wireguard/setupVars.conf"
 
+# shellcheck disable=SC1090
+source "${setupVars}"
+
+### Funcions
+
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
 
+### Script
+
+# This scripts runs as root
 if [[ ! -f "${setupVars}" ]]; then
   err "::: Missing setup vars file!"
   exit 1
 fi
 
-# shellcheck disable=SC1090
-source "${setupVars}"
-
 echo -e "::::\t\t\e[4mPiVPN debug\e[0m\t\t ::::"
 printf "=============================================\n"
 echo -e "::::\t\t\e[4mLatest commit\e[0m\t\t ::::"
diff --git a/scripts/wireguard/qrcodeCONF.sh b/scripts/wireguard/qrcodeCONF.sh
index 1f7bbd8..e81f319 100755
--- a/scripts/wireguard/qrcodeCONF.sh
+++ b/scripts/wireguard/qrcodeCONF.sh
@@ -1,5 +1,9 @@
 #!/bin/bash
 
+### Constants
+encoding="ansiutf8"
+
+### Functions
 err() {
   echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
 }
@@ -18,8 +22,8 @@ helpFunc() {
   echo ":::  -h,--help            Show this help dialog"
 }
 
+### Script
 # Parse input arguments
-encoding="ansiutf8"
 
 while [[ "$#" -gt 0 ]]; do
   _key="${1}"
diff --git a/scripts/wireguard/removeCONF.sh b/scripts/wireguard/removeCONF.sh
index 56572b2..fd7e66f 100755
--- a/scripts/wireguard/removeCONF.sh
+++ b/scripts/wireguard/removeCONF.sh
@@ -1,19 +1,16 @@
 #!/bin/bash
 
+### Constants
 setupVars="/etc/pivpn/wireguard/setupVars.conf"
 
-err() {
-  echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
-}
-
-if [[ ! -f "${setupVars}" ]]; then
-  err "::: Missing setup vars file!"
-  exit 1
-fi
-
 # shellcheck disable=SC1090
 source "${setupVars}"
 
+### Functions
+err() {
+  echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
+}
+
 helpFunc() {
   echo "::: Remove a client conf profile"
   echo ":::"
@@ -27,6 +24,12 @@ helpFunc() {
   echo ":::  -h,--help            Show this help dialog"
 }
 
+### Script
+if [[ ! -f "${setupVars}" ]]; then
+  err "::: Missing setup vars file!"
+  exit 1
+fi
+
 # Parse input arguments
 while [[ "$#" -gt 0 ]]; do
   _key="${1}"