From 4ce14217822ee0927b007753198250e494191b52 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Tue, 19 Apr 2016 09:18:08 +0200
Subject: mehr Optionen, Hooks umstrukturiert

---
 sendmailadvanced      | 61 +++++++++++++++++++++++++++++++++++++++------------
 sendmailadvanced.conf | 32 +++++++++++----------------
 2 files changed, 60 insertions(+), 33 deletions(-)

diff --git a/sendmailadvanced b/sendmailadvanced
index 12a327c..3c3122d 100755
--- a/sendmailadvanced
+++ b/sendmailadvanced
@@ -1,14 +1,25 @@
 #!/bin/bash
 
 verwendung() {
-  >&2 echo 'sendmailadvanced [-h|--hook param-for-hooks] [-i|--inline file] [-e|--encrypt] [-s|--stamp] [-t] [--no-hooks]'
+  >&2 echo 'sendmailadvanced [(-h|--hook) hook] [(-i|--inline) file | -t|--no-inline] [-e|--[no-]encrypt] [-s|--[no-]stamp]'
+  >&2 echo '  -h|--hook:          activate hook'
+  >&2 echo '  -i|--inline:        enhance email file in situ'
+  >&2 echo '                        "--inline -" has the same effect as "-t"'
+  >&2 echo '                        conflicts with -t|--no-inline'
+  >&2 echo '  -t|--no-inline:     enhance email from stdin to stdout'
+  >&2 echo '                        conflicts with -i|--inline'
+  >&2 echo '  -e|--[no-]encrypt:  do (not) encrypt'
+  >&2 echo '  -s|--[no-]stamp:    do (not) stamp'
   exit 1
 }
 
 datei=""
-encrypt=false
-stamp=false
-applyHooks=true
+encrypt=true
+stamp=true
+
+dForced=false
+eForced=false
+sForced=false
 
 if [ -x /etc/sendmailadvanced.conf ]
 then
@@ -22,8 +33,10 @@ else
   done
 fi
 
+gpg --list-keys "${gpg_recipient}" &> /dev/null || encrypt=false
+which hashcash &> /dev/null || stamp=false
 
-eval set -- "$(getopt -o eh:i:st --long encrypt,hook:,inline:,no-hooks,stamp -n "$(basename "$0")" -- "$@")"
+eval set -- "$(getopt -o eh:i:st --long encrypt,no-encrypt,hook:,inline:,no-inline,stamp,no-stamp -n "$(basename "$0")" -- "$@" || echo verwendung)"
 
 while true
 do
@@ -33,22 +46,36 @@ do
       hooks[${#hooks[@]}]="$1"
     ;;
     -i|--inline)
-      echo "inline erkannt"
+      ${dForced} && verwendung
       shift
       datei="$1"
+      [ "${datei}" == "-" ] && datei=""
+      dForced=true
+    ;;
+    -t|--no-inline)
+      ${dForced} && verwendung
+      datei=""
+      dForced=true
     ;;
     -e|--encrypt)
+      ${eForced} && verwendung
       encrypt=true
+      eForced=true
+    ;;
+    --no-encrypt)
+      ${eForced} && verwendung
+      encrypt=false
+      eForced=true
     ;;
     -s|--stamp)
+      ${sForced} && verwendung
       stamp=true
+      sForced=true
     ;;
-    --no-hooks)
-      applyHooks=false
-    ;;
-    -t)
-      encrypt=true
-      stamp=true
+    --no-stamp)
+      ${sForced} && verwendung
+      stamp=false
+      sForced=true
     ;;
     --)
       shift
@@ -121,9 +148,15 @@ fi
   echo "${zeile}"
 
   (
-    ${applyHooks} && body_header_hook "${hooks[@]}"
+    for hookParam in "${hooks[@]}"
+    do
+      body_header_hook "${hookParam}"
+    done
     cat
-    ${applyHooks} && body_footer_hook "${hooks[@]}"
+    for hookParam in "${hooks[@]}"
+    do
+      body_footer_hook "${hookParam}"
+    done
   ) | \
   (
     ${encrypt} && gpg -e -a -s -r ${gpg_recipient} || cat
diff --git a/sendmailadvanced.conf b/sendmailadvanced.conf
index 7b37bfc..cf7932d 100755
--- a/sendmailadvanced.conf
+++ b/sendmailadvanced.conf
@@ -11,28 +11,22 @@ hashcash_bits=22
 # things to put into head of (body of) email
 body_header_hook()
 {
-  true
+  [ "$(whoami)" == "root" ] && [ "$1" == "last-backups" ] && return 0
+  echo "Unkonwn header-hook: '$1'"
 }
 
 # things to put into foot of email
 body_footer_hook()
 {
-  while [ $# -gt 0 ]
-  do
-    if [ "$1" == "-t" ]
-    then
-      true
-    elif [ "$(whoami)" == "root" ] && [ "$1" == "-wb" ]
-    then
-      echo "----------------------- Last Backups Begin -------------------------"
-      echo
-      lastBackups
-      echo
-      echo "------------------------ Last Backups End --------------------------"
-      echo
-    else
-      echo "Unknown option: '$1'"
-    fi
-    shift
-  done
+  if [ "$(whoami)" == "root" ] && [ "$1" == "last-backups" ]
+  then
+    echo "----------------------- Last Backups Begin -------------------------"
+    echo
+    lastBackups
+    echo
+    echo "------------------------ Last Backups End --------------------------"
+    echo
+  else
+    echo "Unknown footer-hook: '$1'"
+  fi
 }
-- 
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