1 files changed, 188 insertions, 0 deletions
diff --git a/sendmailadvanced.in b/sendmailadvanced.in
new file mode 100755
index 0000000..e5a7f3e
--- /dev/null
+++ b/sendmailadvanced.in
@@ -0,0 +1,188 @@
+#!/bin/bash
+
+verwendung() {
+  >&2 echo 'This is sendmailadvanced version #VERSION#'
+  >&2 echo ''
+  >&2 echo 'usage: 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
+}
+
+stempeln() {
+  oldIFS="${IFS}"
+
+  IFS=','
+  for adressat in ${adressatenString}
+  do
+    if [[ "${adressat}" == *"<"*">"* ]]
+    then
+      adressat="${adressat#*<}"
+      adressat="${adressat%>*}"
+    fi
+    adressat="$(
+      echo "${adressat}" | \
+        tr -d "[:space:]"
+    )"
+    echo "${adressat}" | grep -q "\S" || continue
+    hashcash -b ${hashcash_bits} -Xm "${adressat}"
+  done
+
+  adressatenString=""
+
+  IFS="${oldIFS}"
+}
+
+datei=""
+encrypt=true
+stamp=true
+
+dForced=false
+eForced=false
+sForced=false
+
+if [ -x #ETCDIR#/sendmailadvanced.conf ]
+then
+  . #ETCDIR#/sendmailadvanced.conf
+else
+  for konfig in $(readlink -f "$0").conf $(find . -name sendmailadvanced.conf 2> /dev/null)
+  do
+    [ -x "${konfig}" ] || continue
+    . "${konfig}"
+    break
+  done
+fi
+
+gpg --list-keys "${gpg_recipient}" &> /dev/null || encrypt=false
+which hashcash &> /dev/null || stamp=false
+
+eval set -- "$(getopt -o eh:i:st --long encrypt,no-encrypt,hook:,inline:,no-inline,stamp,no-stamp -n "$(basename "$0")" -- "$@" || echo verwendung)"
+
+while true
+do
+  case "$1" in
+    -h|--hook)
+      shift
+      hooks[${#hooks[@]}]="$1"
+    ;;
+    -i|--inline)
+      ${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-stamp)
+      ${sForced} && verwendung
+      stamp=false
+      sForced=true
+    ;;
+    --)
+      shift
+      break
+    ;;
+    *)
+      >&2 echo "FEHLER: Verstehe Option \"$1\" doch nicht! Ich beende."
+      verwendung
+    ;;
+  esac
+  shift
+done
+
+[ $# -ne 0 ] && verwendung
+
+MAILER="cantfind"
+for executable in sendmail msmtp
+do
+  for prefix in #BINDIR# /usr/bin /usr/sbin /bin /sbin
+  do
+    [ "${MAILER}" == "cantfind" ] && [ -x ${prefix}/${executable} ] && MAILER="${prefix}/${executable}"
+  done
+done
+
+if [ -z "${datei}" ] && [ "${MAILER}" == "cantfind" ]
+then
+  >&2 echo "ERROR: Can't find suitable mailer."
+  exit 1
+fi
+
+(
+  [ -z "${datei}" ] && cat || cat "${datei}"
+) | \
+(
+  IFS=''
+  adressatenString=""
+  adressatenSammeln=false
+  while read -r zeile
+  do
+    echo "${zeile}" | grep -q "\S" || break
+    s="${zeile}"
+    if [ "${s:0:3}" == "To:" ] || [ "${s:0:3}" == "Cc:" ]
+    then
+      adressatenSammeln=true
+      s=" ,${s:4}"
+    fi
+    if [ ! "${s:0:1}" == " " ]
+    then
+      ${adressatenSammeln} && ${stamp} && stempeln
+      adressatenSammeln=false
+    fi
+    ${adressatenSammeln} && adressatenString="${adressatenString}${s}"
+    echo "${zeile}"
+  done
+
+  ${stamp} && stempeln
+  echo "${zeile}"
+
+  (
+    for hookParam in "${hooks[@]}"
+    do
+      body_header_hook "${hookParam}"
+    done
+    cat
+    for hookParam in "${hooks[@]}"
+    do
+      body_footer_hook "${hookParam}"
+    done
+  ) | \
+  (
+    ${encrypt} && gpg -e -a -s -r ${gpg_recipient} || cat
+  )
+) | \
+(
+  if [ -z "${datei}" ]
+  then
+    ${MAILER} -t
+  else
+    tmpFile="$(mktemp)"
+    cat > "${tmpFile}"
+    cat "${tmpFile}" > "${datei}"
+    rm -f "${tmpFile}"
+  fi
+)