From 2e8234e1e671c91c86c29c67cb01e69476b2c5c4 Mon Sep 17 00:00:00 2001
From: Christoph <ckubu@oopen.de>
Date: Sun, 27 Jun 2021 16:53:17 +0200
Subject: [PATCH] create-postfix-pcre-chek-files.sh: Update Spam checks..

---
 ...> create-update-postfix-pcre-chek-files.sh | 130 +++++++++++++++++-
 1 file changed, 126 insertions(+), 4 deletions(-)
 rename create-postfix-pcre-chek-files.sh => create-update-postfix-pcre-chek-files.sh (71%)

diff --git a/create-postfix-pcre-chek-files.sh b/create-update-postfix-pcre-chek-files.sh
similarity index 71%
rename from create-postfix-pcre-chek-files.sh
rename to create-update-postfix-pcre-chek-files.sh
index c33ff0a..39e8ffe 100755
--- a/create-postfix-pcre-chek-files.sh
+++ b/create-update-postfix-pcre-chek-files.sh
@@ -7,6 +7,7 @@ clean_up() {
 
    # Perform program exit housekeeping
    rm -f $tmp_err_msg
+   echo ""
    exit $1
 }
 
@@ -22,7 +23,8 @@ echononl(){
 
 fatal(){
    echo ""
-   echo -e "fatal error: $*"
+   echo ""
+   echo -e "Fatal error: $*"
    echo ""
    echo -e "\t\033[31m\033[1mInstalllation will be interrupted\033[m\033[m"
    echo ""
@@ -90,12 +92,106 @@ detect_os_1 () {
    os_version="${os_version// /}"
 
 }
+trim() {
+    local var="$*"
+    var="${var#"${var%%[![:space:]]*}"}"   # remove leading whitespace characters
+    var="${var%"${var##*[![:space:]]}"}"   # remove trailing whitespace characters
+    echo -n "$var"
+}
+
+
+# -------------
+# --- Some default settings
+# -------------
+
+DEFAULT_ADMIN_EMAIL="argus@oopen.de"
+
+
+# - Is this a systemd system?
+# -
+if [[ "X`which systemd`" = "X" ]]; then
+   systemd_exists=false
+else
+   systemd_exists=true
+fi
+
+FORCE_UPDATE=""
+UPDATED=false
+
+if [[ -f "/etc/postfix/header_checks.pcre" ]] \
+   || [[ -f "/etc/postfix/body_check.pcre" ]] \
+   || [[ -f "/etc/postfix/mime_header_check.pcre" ]]; then
+
+   echo ""
+   echo -e "\033[32m--\033[m"
+   echo ""
+   echo "   Header/MIME-Header/Body Checks"
+   echo ""
+   echo "   At least one PCRE check file exits. Should these files be updated?"
+   echo ""
+   echo -e "   \033[33mType <return> to choose the highlighted value\033[m"
+   echo ""
+   echo ""
+   echononl "   Force update existing header/mime-header/body checks? [\033[1;33myes\033[m/no]: "
+
+   read FORCE_UPDATE
+   FORCE_UPDATE=${FORCE_UPDATE,,}
+   FORCE_UPDATE="$(trim "$FORCE_UPDATE")"
+
+   if [[ -z "$FORCE_UPDATE" ]] || [[ "$FORCE_UPDATE" = "yes" ]]; then
+      FORCE_UPDATE=true
+   elif [[ "$FORCE_UPDATE" = "no" ]]; then
+      FORCE_UPDATE=false
+   else
+      FORCE_UPDATE=""
+   fi
+
+   while [[ -z "$FORCE_UPDATE" ]] ; do
+
+      echononl "   Wrong entry! [\033[1myes\033[m/no]: "
+
+      read FORCE_UPDATE
+      FORCE_UPDATE=${FORCE_UPDATE,,}
+      FORCE_UPDATE="$(trim "$FORCE_UPDATE")"
+
+      if [[ -z "$FORCE_UPDATE" ]] || [[ "$FORCE_UPDATE" = "yes" ]]; then
+         FORCE_UPDATE=true
+      elif [[ "$FORCE_UPDATE" = "no" ]]; then
+         FORCE_UPDATE=false
+      else
+         FORCE_UPDATE=""
+      fi
+
+   done
+
+   echo ""
+   echo "   FORCE_UPDATE.....: $FORCE_UPDATE"
+   echo ""
+   echononl "   Continue (yes/no): "
+   read OK
+   OK=${OK,,}
+   while [ "X$OK" != "Xyes" -a "X$OK" != "Xno" ]; do
+      echononl "   Wrong entry! [yes/no]: "
+      read OK
+      OK=${OK,,}
+   done
+   [ $OK = "yes" ] || fatal Repeat with other settings..
+
+   echo ""
+   echo -e "\033[32m--\033[m"
+   echo ""
+
+else
+   FORCE_UPDATE="true"
+fi
+
+      
 
 
 
 _file="/etc/postfix/header_checks.pcre"
 echononl "   Create file '$_file' used for header replacing"
-if [[ ! -f "$_file" ]]; then
+if $FORCE_UPDATE ; then
    cat << EOF > "$_file"
 # ---
 # - Replace headers
@@ -158,6 +254,7 @@ if [[ ! -f "$_file" ]]; then
 EOF
    if [[ $? -eq 0 ]] ; then
       echo_ok
+      UPDATED=true
    else
       echo_failed
    fi
@@ -168,7 +265,7 @@ fi
 
 _file="/etc/postfix/mime_header_check.pcre"
 echononl "   Create file '$_file' used for header replacing"
-if [[ ! -f "$_file" ]]; then
+if $FORCE_UPDATE ; then
    cat << EOF > "$_file"
 # ---
 # - Check MIME-Headers
@@ -180,6 +277,7 @@ if [[ ! -f "$_file" ]]; then
 EOF
    if [[ $? -eq 0 ]] ; then
       echo_ok
+      UPDATED=true
    else
       echo_failed
    fi
@@ -190,7 +288,7 @@ fi
 
 _file="/etc/postfix/body_check.pcre"
 echononl "   Create file '$_file' used for header replacing"
-if [[ ! -f "$_file" ]]; then
+if $FORCE_UPDATE ; then
    cat << EOF > "$_file"
 # ---
 # - Body Checks
@@ -202,6 +300,7 @@ if [[ ! -f "$_file" ]]; then
 EOF
    if [[ $? -eq 0 ]] ; then
       echo_ok
+      UPDATED=true
    else
       echo_failed
    fi
@@ -209,4 +308,27 @@ else
    echo_skipped
 fi
 
+
+if $UPDATED ; then
+   echo ""
+   echo ""
+   echononl "   Reload postfix daemon"
+   if $systemd_exists ; then
+      systemctl reload postfix 2> /dev/null
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+      else
+         echo_failed
+      fi
+   else
+      /etc/init.d/postfix reload 2> /dev/null
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+      else
+         echo_failed
+      fi
+   fi
+fi
+   
+
 clean_up 0