diff options
Diffstat (limited to 'misc/poc/firma-0.2.4')
| -rwxr-xr-x | misc/poc/firma-0.2.4 | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/misc/poc/firma-0.2.4 b/misc/poc/firma-0.2.4 deleted file mode 100755 index 6418782..0000000 --- a/misc/poc/firma-0.2.4 +++ /dev/null @@ -1,211 +0,0 @@ -#!/bin/bash -# -# firma v0.2.4: encrypted mailing list manager -# feedback: rhatto@riseup.net luis@riseup.net | GPL -# -# list configuration is passed thru the config file, -# where you put PARAMETER=value (whithout spaces) -# -# MAIL= path for mail program -# GPG= path for gnupg binary -# LISTNAME= list email -# LISTADMIN= list administrator email addresses (space separated) -# GPGDIR= gpg dir for the lists' keyring -# PASSWD= passwd for the lists' keyring -# - -VERSION=0.2.4 - -function usage { - echo usage: $0 firma \<option\> \<config-file\> - echo -c: create a new list using config-file - echo -p: process a message - echo -a: admin commands -} - -function check_config { - # check configuration file parameters - if [ ! -f $GPG -o ! -x $GPG ]; then - echo -e "\n$1: GPG binary ($GPG) could not be found.\n" - exit 1 - elif [ ! -f $MAIL -o ! -x $MAIL ]; then - echo -e "\n$1: Mail program ($MAIL) could not be found.\n" - exit 1 - elif [ ! -d $GPGDIR -o ! -f $GPGDIR/pubring.gpg -o ! -f $GPGDIR/secring.gpg ]; then - echo -e "\n$1: GPG home directory ($GPGDIR) or the GPG keyrings could not be found.\n" - exit 1 - elif [ -z "$(cat $CONFIG | grep -o ^PASSWD=\'[^\']*\'$)" -o \ - -z "$(echo -n $PASSWD)" -o \ - "$(echo -n $PASSWD | wc -m)" -lt "25" -o \ - -z "$(echo -n $PASSWD | grep -o [[:lower:][:upper:]])" -o \ - -z "$(echo -n $PASSWD | grep -o [[:digit:]])" -o \ - "$(echo -n $PASSWD | grep -o [[:punct:]] | wc -l)" -lt "5" ]; then - echo -e "\n$CONFIG: PASSWD is empty or does not meet the minimum complexity requirements." - echo "$1: Please set a new passphrase for the list's private key. Make it at least" - echo "$1: 25 characters long (using a combination of letters, numbers and at least" - echo "$1: 5 special characters) and enclose it in 'single quotes'. The passphrase" - echo -e "$CONFIG: itself, though, cannot contain any single quote.\n" - exit 1 - elif [ -z "$($GPGLIST | grep ^pub | cut -d : -f 10 | grep -i \<$LISTNAME\>$)" ]; then - echo -e "\n$CONFIG: GPG key for list \"$LISTNAME\" could not be found." - echo -e "$CONFIG: Note that this parameter expects an email address.\n" - exit 1 - else - for ADMIN in $LISTADMIN; do { - if [ -z "$($GPGLIST | grep ^pub | cut -d : -f 10 | grep -i \<$ADMIN\>$)" ]; then - echo -e "\n$CONFIG: GPG key for list administrator \"$ADMIN\" could not be found." - echo -e "$CONFIG: Note that this parameter expects one or more space separated email addresses.\n" - exit 1 - fi; } - done - fi -} - -function GPGSTDERR { - # discard $GPGDECRYPT STDOUT and get its STDERR instead, for signature checking - echo -e "$PASSWD\n${GPG_MESSAGE[@]}" | sed -e 's/^ //' | ($GPGDECRYPT --status-fd 2 1> /dev/null) 2>&1 ; -} - -function SUBSCRIBERS { - # get list susbscriber's addresses - $GPGLIST | sed -ne "/$LISTNAME/Id" -e '/pub/p' | cut -d : -f 10 | grep -o '<[^<>]*>$' | sed -e 's/[<>]//g' ; -} - -function get_message { - n=0; - while read STDIN; do - MESSAGE[$n]="$STDIN\n" - ((++n)) - done -} - -function get_gpg_message { - signal=0; x=0; - for ((count=0;count<=n;count++)); do - if [[ $signal == "0" ]] && [[ "$(echo "${MESSAGE[$count]}" | grep -v -e "-----BEGIN PGP MESSAGE-----")" == "" ]]; then - GPG_MESSAGE[$x]=${MESSAGE[$count]}; ((++x)) - signal=1 - elif [[ $signal == "1" ]]; then - GPG_MESSAGE[$x]=${MESSAGE[$count]} - ((++x)) - if [[ "$(echo "${MESSAGE[$count]}" | grep -v -e "-----END PGP MESSAGE-----")" == "" ]]; then - signal=0 - fi - fi - done -} - -function get_headers { - # get the message headers and the sender's email address - FROM=$(echo -e "${MESSAGE[@]}" | grep -m 1 "From:" | cut -d : -f 2- | sed -e 's/^ //') - FROMADD=$(if [ -z "$(echo $FROM | grep '>$')" ] ; then echo $FROM ; else echo $FROM | grep -o '<[^<>]*>$' | sed -e 's/[<>]// -g' ; fi) - DATE=$(echo -e "${MESSAGE[@]}" | grep -m 1 "Date:") - SUBJECT=$(echo -e "${MESSAGE[@]}" | grep -m 1 "Subject:" | cut -d : -f 2- | sed -e 's/^ //') -} - -function process_message { - # process a message sent to the list - - get_message - get_headers - get_gpg_message - - # if signature is Good, encrypt and send it for each list subscriber - # todo: declare a function to decrypt, re-encrypt and send the list messages - if (GPGSTDERR | grep -Fq GOODSIG) ; then - - for EMAIL in $(SUBSCRIBERS); do - - echo "$PASSWD - Message from: $FROM - Subject: $SUBJECT - $DATE - - $(GPGSTDERR | grep -F 'gpg: Signature made') - $(GPGSTDERR | grep -F 'gpg: Good signature from') - - $(echo -e "$PASSWD\n${GPG_MESSAGE[@]}" | $GPGDECRYPT 2> /dev/null)" | sed -e 's/=20$//' | $GPGENCRYPT $EMAIL | $MAIL -r $LISTNAME $EMAIL - - done - - # else, if signature is BAD, email it back to the list admins and to sender - elif (GPGSTDERR | grep -Fq BADSIG) ; then - - for EMAIL in $(echo $LISTADMIN $FROMADD); do - - echo "$PASSWD - Message from: $FROM - Subject: [BAD SIGNATURE] $SUBJECT - $DATE - - $(GPGSTDERR | grep -F 'gpg: Signature made') - $(GPGSTDERR | grep -F 'gpg: BAD signature from') - - $(echo -e "$PASSWD\n${GPG_MESSAGE[@]}" | $GPGDECRYPT 2> /dev/null)" | sed -e 's/=20$//' | $GPGENCRYPT $EMAIL | $MAIL -r $LISTNAME $EMAIL - - done - - # else, probably either the message was not signed or the sender is not subscribed to the list - # email the message back to sender including a note about this - # todo: parse STDERR to find out why the signature couldn't be checked and send more specific errors back to sender - else - - echo " - Message from: $FROM - Subject: [RETURNED MAIL] $SUBJECT - $DATE - - [ It was not possible to process this message. Either or both - the message was not encrypted and/or signed, or you are not - subscribed to this list. Contact the list administrator if - you have any questions. ] - - -- - firma v$VERSION" | $MAIL -r $LISTNAME $FROMADD - - fi - -} - -# main - -# command line checking -if [ -z $2 ]; then - usage; exit 1 -else - CONFIG=$2 -fi - -# if the configuration file exists, disable "sourcepath" and evaluate the parameters -if [ -f $CONFIG ] && [[ $1 != "-c" ]]; then - shopt -u sourcepath && source $CONFIG -else - echo -e "\nConfiguration file \"$CONFIG\" could not be found.\n" - exit 1 -fi - -declare -a MESSAGE -declare -a GPG_MESSAGE -declare n -export LANG=en_US - -# declare GPG variables -GPGCOMMAND="$GPG --quiet --homedir $GPGDIR --batch --no-tty --no-use-agent --no-permission-warning" -GPGLIST="$GPGCOMMAND --list-keys --with-colons" -GPGDECRYPT="$GPGCOMMAND --passphrase-fd 0 --decrypt" -GPGENCRYPT="$GPGCOMMAND --passphrase-fd 0 --always-trust --encrypt --sign --armor --recipient" - -# then check the config -check_config - -# command line parsing -if [[ $1 == "-c" ]]; then - newlist -elif [[ $1 == "-p" ]]; then - process_message -elif [[ $1 == "-a" ]]; then - admin_task -else - usage; exit 1 -fi - |