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# Handbuch zur Ausführung der Implementierung
## Vorraussetzungen/Abhängigkeiten
* ein unix-artiges Betriebssystem
* Docker Version 1.10.x (getestet mit 1.10.1)
Der Docker Daemon muss gestartet sein. Siehe [Installations Guide](https://docs.docker.com/engine/installation/).
### Bauen der container
```sh
docker build -t hasufell/haraka alpine-haraka
docker build -t hasufell/haraka-gateway alpine-haraka-gateway
docker build -t hasufell/swaks alpine-swaks
```
## Ausführung des Programms
### Starten des Netzwerkes
Die Container werden in einem Docker Netzwerk zusammengefasst und
können innerhalb dessen kommunizieren.
```sh
docker network create haraka
```
Der Name des Netzwerkes _muss_ hier `haraka` lauten.
### Starten der hops
Diese sollten jeweils in einem Terminal gestartet werden, um den Debug
Output der Container beobachten zu können.
```sh
docker run -ti \
--name=hop1 \
--net=haraka \
hasufell/haraka
docker run -ti \
--name=hop2 \
--net=haraka \
hasufell/haraka
docker run -ti \
--name=hop3 \
--net=haraka \
hasufell/haraka
docker run -ti \
--name=rcpt \
--net=haraka \
hasufell/haraka
```
### Starten des SMTP gateways
Dieser Server erstellt die initiale MystMail, wenn eine gewöhnliche E-Mail
ankommt und sendet sie an `hop1`.
```sh
docker run -ti \
--name=smtp-gateway \
--net=haraka \
hasufell/haraka-gateway
```
### Absenden einer E-Mail
```sh
docker run -ti \
--net=haraka \
hasufell/swaks \
swaks -t wurst@rcpt.haraka -f hasufell@smtp-gateway.com -s smtp-gateway.haraka -p 25
```
## Beobachtung der Ergebnisse
Dies zeigt die MystMail an jedem Hop.
```sh
for i in hop1 hop2 hop3 rcpt ; do
docker exec -ti ${i} cat /tmp/mail.eml
done
```
## Cleanup
Falls die Container neu gestartet werden sollen.
```sh
for i in hop1 hop2 hop3 rcpt smtp-gateway ; do
docker stop ${i}
docker rm ${i}
done
```

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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
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Yoyodyne, Inc., hereby disclaims all copyright interest in the program
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<signature of Ty Coon>, 1 April 1989
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Public License instead of this License.

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include ../common.mk
all: Handbuch.pdf
Handbuch.pdf: Handbuch.md
$(PANDOC) $^ --latex-engine=xelatex -o $@
clean:
$(RM) Handbuch.pdf
.PHONY: all clean

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FROM mhart/alpine-node:4
MAINTAINER Julian Ospald <hasufell@posteo.de>
ENV HARAKA_HOME /app
ENV HARAKA_LOGS /logs
ENV HARAKA_DATA /data
ENV PATH /usr/local/bin:$HARAKA_HOME/node_modules/.bin:$PATH
# node-gyp emits lots of warnings if HOME is set to /
ENV HOME /tmp
ENV HARAKA_VERSION 2.7.0
# the application is not started as this user,
# but Haraka can be configured to drop its privileges
# via smtp.ini
RUN echo "@testing http://nl.alpinelinux.org/alpine/edge/testing" \
>> /etc/apk/repositories && \
apk --no-cache add make gcc g++ python shadow@testing && \
groupadd -r haraka && \
useradd --comment "Haraka Server User" \
--home "$HARAKA_HOME" \
--shell /bin/false \
--gid haraka \
-r \
-M \
haraka && \
npm install -g "Haraka@$HARAKA_VERSION" && \
haraka --install "$HARAKA_HOME" && \
apk --no-cache del make gcc g++ python shadow && \
rm -rf /var/cache/apk/*
COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint
COPY config /app/config
COPY plugins /app/plugins
RUN chmod 0755 /usr/local/bin/docker-entrypoint
RUN mkdir -p "$HARAKA_HOME" && \
mkdir -p "$HARAKA_LOGS" && \
mkdir -p "$HARAKA_DATA" && \
chmod -R 0777 "$HARAKA_LOGS" && \
chmod -R 0777 "$HARAKA_DATA" && \
chown -R haraka:haraka "$HARAKA_HOME" "$HARAKA_LOGS" "$HARAKA_DATA"
ENV HOME "$HARAKA_HOME"
WORKDIR /app
EXPOSE 25
ENTRYPOINT ["/usr/local/bin/docker-entrypoint"]
CMD [""]

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`Dockerfile` and `docker-entrypoint.sh` based on
https://github.com/mhart/alpine-node and https://github.com/gbleux/docker-haraka
`config/` and `plugins/`: Copyright Julian Ospald, 2016

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my_mx
access
dnsbl
helo.checks
open_relay
data.headers
enable_parse_body
create_myst_mail
max_unrecognized_commands

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#!/bin/sh
#
# a wrapper script for the Haraka server process. when invoked with
# 'haraka' as first argument, it performs two additional steps:
# * ensure proper ownership and permissions of the persistence directories
# * capture the log statements from stdout and writes it to /logs
#
# all other arguments are passed through to the sub-command.
#
# the ownership and permissions flags is required, as docker maintains
# the settings from the host once a volume is mounted. the userid will
# most likely not match and the default bits of 0755 will prevent Haraka
# to write any data. the permission flags can be defined via the
# environment variable DOCKER_VOLUMES_CHMOD and the ownership via
# DOCKER_VOLUMES_CHOWN. if a variable is not defined, its respective
# action is not performed and the volume directories remain unchanged.
#
# logging to file is supported by Haraka, but only in daemon mode. this
# would cause the container to exit immediately. the SMTP server is
# therefor run in the forground, which causes log messages to end up
# in stdout. the wrapper script redirects it to files in /logs. in order
# to preserve log files from previous runs, a new logfile is created,
# together with a symlink pointing to the current file. the name of the
# log file can be configured via the environment variable
# HARAKA_LOG_DATE_FORMAT. its content is expected to be a valid
# date (1) format pattern.
#
set -e
HARAKA_LOG="haraka-latest.log"
HARAKA_BIN="haraka"
# create a new log file and a symbolic link named 'haraka.log'
# to that file in the same directory. the symbolic link is
# overwritten if it exists.
# @param $1 {String} log filename (without directory path)
haraka_log_rotate() {
# remove symlink in case of persistent mount
test -e "$HARAKA_LOGS/haraka.log" && rm -f "$HARAKA_LOGS/haraka.log"
touch "$HARAKA_LOGS/$1" && ln -s "$HARAKA_LOGS/$1" "$HARAKA_LOGS/haraka.log"
}
# change the ownership of the haraka persistence volumes.
# @param $1 {String} chown ownership rule
haraka_chown() {
chown -R "$1" "$HARAKA_LOGS" && \
chown -R "$1" "$HARAKA_DATA"
}
# change the permission flags of the haraka persistence volumes.
# @param $1 {String} chmod permission flags
haraka_chmod() {
chmod "$1" "$HARAKA_LOGS" && \
chmod "$1" "$HARAKA_DATA"
}
# set the filename of the log output. if the environment variable
# 'HARAKA_LOG_DATE_FORMAT' is set, it is used to generate the filename
# postfix using the 'date' command. the default is to use 'date +%s' as
# the filename postfix.
configure_log_filename() {
HARAKA_LOG_IDENT=$(date +"${HARAKA_LOG_DATE_FORMAT:-s}")
HARAKA_LOG="haraka-${HARAKA_LOG_IDENT}.log"
}
# perform pre-boot actions before the SMTP server starts.
haraka_bootstrap() {
configure_log_filename
haraka_log_rotate "$HARAKA_LOG"
if test "x$DOCKER_VOLUMES_CHOWN" != "x";then
haraka_chown "$DOCKER_VOLUMES_CHOWN" || return 1
fi
if test "x$DOCKER_VOLUMES_CHMOD" != "x";then
haraka_chmod "$DOCKER_VOLUMES_CHMOD" || return 1
fi
return 0
}
# ensure the environment has been set up correctly.
# @return {Number} a value greater than zero if anything is not OK
validate_haraka_env() {
if test "x$HARAKA_LOGS" = "x";then
echo "Haraka logs directory has not been set." 1>&2
return 1
fi
if test "x$HARAKA_DATA" = "x";then
echo "Haraka data directory has not been set." 1>&2
return 1
fi
return 0
}
exec_haraka() {
validate_haraka_env || exit 1
haraka_bootstrap || exit 2
# tee outout so 'docker logs' and 'tail -f $LOG_VOLUME/haraka.log' works
exec "$HARAKA_BIN" -c /app "$@" 2>&1 | tee "$HARAKA_LOGS/$HARAKA_LOG"
}
exec_help() {
echo "Either run this command without any parameters to execute"
echo "Haraka or specify the command which should be invoked."
exit 0
}
# script entry point
main() {
case "${1:-haraka}" in
[hH]araka)
exec_haraka
;;
--help|-h|-?)
exec_help
;;
*)
exec "$@"
;;
esac
}
main "$@"

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{
"libs": [
"browser",
"underscore",
"jquery",
"Haraka"
],
"plugins": {
"node": {},
"complete_strings": {}
}
}

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/*
Haraka Plugins for SMTP-based anonymization
Copyright (C) 2016 Julian Ospald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
var console = require('console');
var fs = require('fs');
var os = require('os');
var Address = require('./address').Address;
var MessageStream = require('./messagestream');
var Transaction = require('./transaction').Transaction;
var config = require('./config');
var uuid = require('./utils').uuid;
exports.hook_data_post = function(next, connection) {
var mail = create_myst_mail(connection.transaction);
var t = transform_transaction(mail, connection);
connection.transaction = t;
next();
}
/**
* Transforms the current transaction based on a given
* raw email string. This always parses the body.
*
* 'mail_from' and 'rcpt_to' are filled in from the email headers.
* The uuid and results are taken from the old transaction.
*
* @param {string} email the raw full email, including headers
* @param {Connection} connection the current connection object
* @return {Transaction} the new transaction
*/
function transform_transaction(email, connection) {
var email_lines = email.split("\n");
// create new empty transaction
var t = new Transaction();
t.uuid = connection.transaction.uuid;
t.parse_body = true;
t.message_stream = new MessageStream(
config.get('smtp.ini'), t.uuid,
t.header.header_list);
// parse the email and fill the object
var i;
for (i = 0; i < email_lines.length; i++) {
t.add_data(email_lines[i] + "\n");
}
t.end_data(function() { return ; })
// use old result object
t.results = connection.transaction.results;
// overwrite mail_from and rcpt_to
var from_addr = t.header.get("From").match(/[^@<\s]+@[^@\s>]+/g)[0];
var to_addr = t.header.get("To").match(/[^@<\s]+@[^@\s>]+/g)[0];
t.mail_from = new Address(from_addr);
t.rcpt_to = [new Address(to_addr)];
t.results.store.mail_from = new Address(from_addr);
t.results.store.rcpt_to = [new Address(to_addr)];
return t;
}
/**
* Check whether the given header object identifies as a myst mail header
*
* @param {Header} header
* @return {Boolean} true/false
*/
function is_myst_mail(header) {
if (header.get("X-Myst")) {
return true;
}
return false;
}
function myst_encrypt(string) {
var enc = new Buffer(string).toString('base64');
return enc;
}
function get_hops() {
// excludes the last hop
return ["hop1.haraka", "hop2.haraka", "hop3.haraka"];
}
// TODO: randomize date?
function create_mail_for_hop(fromd, tod, date, bodytext) {
var from_addr = "myst@" + fromd;
var to_addr = "myst@" + tod;
return ["Date: " + date,
"To: " + to_addr,
"From: " + from_addr,
"X-Myst: 1",
"Subject: ",
"",
myst_encrypt(bodytext),
""].join("\n");
}
function create_myst_mail(transaction) {
// recipient is always the last hop
var recipient = transaction.rcpt_to[0].host;
var hops = get_hops();
hops.push(recipient);
var date = transaction.header.get("Date").replace(/\n$/, "");
// innermost mail, untouched
var old_mail = get_raw_mail(transaction.body);
var i;
var new_mail = old_mail;
for (i = hops.length - 1; i >= 0; i--) {
if (i == 0) {
// first hop, "from" must be the actual sender
var sender = transaction.mail_from.host;
new_mail = create_mail_for_hop(sender, hops[i], date, new_mail);
} else {
new_mail = create_mail_for_hop(hops[i-1], hops[i], date, new_mail);
}
}
return new_mail;
}
function get_raw_mail(body) {
// TODO: doesn't handle multipart mime
return body.header.header_list.join("") + "\n" + body.bodytext;
}

25
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/*
Haraka Plugins for SMTP-based anonymization
Copyright (C) 2016 Julian Ospald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
// enable parsing of the mail body
exports.hook_data = function(next, connection, params) {
connection.transaction.parse_body = true;
return next();
};

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/*
Haraka Plugins for SMTP-based anonymization
Copyright (C) 2016 Julian Ospald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
'use strict';
var dns = require('dns');
/**
* Fake get_mx hook, which just resolves the domain to its ip address.
* This causes outbound.js to avoid dns.resolve, which would otherwise
* mess up with our test system.
*/
exports.hook_get_mx = function(next, hmail, domain) {
dns.lookup(domain, function (err, address, family) {
return next(OK, address);
})
}

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/*
Haraka Plugins for SMTP-based anonymization
Copyright (C) 2016 Julian Ospald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
'use strict';
var console = require('console');
var Body = require('./mailbody').Body;
/**
* This acts as an open relay for non-local recipients
*/
exports.hook_rcpt = function(next, connection, params) {
if (is_local_rcpt(connection) == false) {
connection.relaying = true;
}
return next(OK);
}
function is_local_rcpt(connection) {
// TODO: get "ich.com" from the config files
// TODO: we currently only handle one recipient
if (connection.transaction.rcpt_to[0].host == "ich.com") {
return true;
}
return false;
}

50
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FROM mhart/alpine-node:4
MAINTAINER Julian Ospald <hasufell@posteo.de>
ENV HARAKA_HOME /app
ENV HARAKA_LOGS /logs
ENV HARAKA_DATA /data
ENV PATH /usr/local/bin:$HARAKA_HOME/node_modules/.bin:$PATH
# node-gyp emits lots of warnings if HOME is set to /
ENV HOME /tmp
ENV HARAKA_VERSION 2.7.0
# the application is not started as this user,
# but Haraka can be configured to drop its privileges
# via smtp.ini
RUN echo "@testing http://nl.alpinelinux.org/alpine/edge/testing" \
>> /etc/apk/repositories && \
apk --no-cache add make gcc g++ python shadow@testing && \
groupadd -r haraka && \
useradd --comment "Haraka Server User" \
--home "$HARAKA_HOME" \
--shell /bin/false \
--gid haraka \
-r \
-M \
haraka && \
npm install -g "Haraka@$HARAKA_VERSION" && \
haraka --install "$HARAKA_HOME" && \
apk --no-cache del make gcc g++ python shadow && \
rm -rf /var/cache/apk/*
COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint
COPY config /app/config
COPY plugins /app/plugins
RUN chmod 0755 /usr/local/bin/docker-entrypoint
RUN mkdir -p "$HARAKA_HOME" && \
mkdir -p "$HARAKA_LOGS" && \
mkdir -p "$HARAKA_DATA" && \
chmod -R 0777 "$HARAKA_LOGS" && \
chmod -R 0777 "$HARAKA_DATA" && \
chown -R haraka:haraka "$HARAKA_HOME" "$HARAKA_LOGS" "$HARAKA_DATA"
ENV HOME "$HARAKA_HOME"
WORKDIR /app
EXPOSE 25
ENTRYPOINT ["/usr/local/bin/docker-entrypoint"]
CMD [""]

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`Dockerfile` and `docker-entrypoint.sh` based on
https://github.com/mhart/alpine-node and https://github.com/gbleux/docker-haraka
`config/` and `plugins/`: Copyright Julian Ospald, 2016

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my_mx
access
dnsbl
helo.checks
open_relay
data.headers
enable_parse_body
my_transaction
data_post_write_mail
test_queue
max_unrecognized_commands

131
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#!/bin/sh
#
# a wrapper script for the Haraka server process. when invoked with
# 'haraka' as first argument, it performs two additional steps:
# * ensure proper ownership and permissions of the persistence directories
# * capture the log statements from stdout and writes it to /logs
#
# all other arguments are passed through to the sub-command.
#
# the ownership and permissions flags is required, as docker maintains
# the settings from the host once a volume is mounted. the userid will
# most likely not match and the default bits of 0755 will prevent Haraka
# to write any data. the permission flags can be defined via the
# environment variable DOCKER_VOLUMES_CHMOD and the ownership via
# DOCKER_VOLUMES_CHOWN. if a variable is not defined, its respective
# action is not performed and the volume directories remain unchanged.
#
# logging to file is supported by Haraka, but only in daemon mode. this
# would cause the container to exit immediately. the SMTP server is
# therefor run in the forground, which causes log messages to end up
# in stdout. the wrapper script redirects it to files in /logs. in order
# to preserve log files from previous runs, a new logfile is created,
# together with a symlink pointing to the current file. the name of the
# log file can be configured via the environment variable
# HARAKA_LOG_DATE_FORMAT. its content is expected to be a valid
# date (1) format pattern.
#
set -e
HARAKA_LOG="haraka-latest.log"
HARAKA_BIN="haraka"
# create a new log file and a symbolic link named 'haraka.log'
# to that file in the same directory. the symbolic link is
# overwritten if it exists.
# @param $1 {String} log filename (without directory path)
haraka_log_rotate() {
# remove symlink in case of persistent mount
test -e "$HARAKA_LOGS/haraka.log" && rm -f "$HARAKA_LOGS/haraka.log"
touch "$HARAKA_LOGS/$1" && ln -s "$HARAKA_LOGS/$1" "$HARAKA_LOGS/haraka.log"
}
# change the ownership of the haraka persistence volumes.
# @param $1 {String} chown ownership rule
haraka_chown() {
chown -R "$1" "$HARAKA_LOGS" && \
chown -R "$1" "$HARAKA_DATA"
}
# change the permission flags of the haraka persistence volumes.
# @param $1 {String} chmod permission flags
haraka_chmod() {
chmod "$1" "$HARAKA_LOGS" && \
chmod "$1" "$HARAKA_DATA"
}
# set the filename of the log output. if the environment variable
# 'HARAKA_LOG_DATE_FORMAT' is set, it is used to generate the filename
# postfix using the 'date' command. the default is to use 'date +%s' as
# the filename postfix.
configure_log_filename() {
HARAKA_LOG_IDENT=$(date +"${HARAKA_LOG_DATE_FORMAT:-s}")
HARAKA_LOG="haraka-${HARAKA_LOG_IDENT}.log"
}
# perform pre-boot actions before the SMTP server starts.
haraka_bootstrap() {
configure_log_filename
haraka_log_rotate "$HARAKA_LOG"
if test "x$DOCKER_VOLUMES_CHOWN" != "x";then
haraka_chown "$DOCKER_VOLUMES_CHOWN" || return 1
fi
if test "x$DOCKER_VOLUMES_CHMOD" != "x";then
haraka_chmod "$DOCKER_VOLUMES_CHMOD" || return 1
fi
return 0
}
# ensure the environment has been set up correctly.
# @return {Number} a value greater than zero if anything is not OK
validate_haraka_env() {
if test "x$HARAKA_LOGS" = "x";then
echo "Haraka logs directory has not been set." 1>&2
return 1
fi
if test "x$HARAKA_DATA" = "x";then
echo "Haraka data directory has not been set." 1>&2
return 1
fi
return 0
}
exec_haraka() {
validate_haraka_env || exit 1
haraka_bootstrap || exit 2
# tee outout so 'docker logs' and 'tail -f $LOG_VOLUME/haraka.log' works
exec "$HARAKA_BIN" -c /app "$@" 2>&1 | tee "$HARAKA_LOGS/$HARAKA_LOG"
}
exec_help() {
echo "Either run this command without any parameters to execute"
echo "Haraka or specify the command which should be invoked."
exit 0
}
# script entry point
main() {
case "${1:-haraka}" in
[hH]araka)
exec_haraka
;;
--help|-h|-?)
exec_help
;;
*)
exec "$@"
;;
esac
}
main "$@"

12
Implementierung/alpine-haraka/plugins/.tern-project Normal file
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{
"libs": [
"browser",
"underscore",
"jquery",
"Haraka"
],
"plugins": {
"node": {},
"complete_strings": {}
}
}

25
Implementierung/alpine-haraka/plugins/add_myst_header.js Normal file
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/*
Haraka Plugins for SMTP-based anonymization
Copyright (C) 2016 Julian Ospald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
// adds the myst header item to the current header list
exports.hook_mail = function(next, connection, params) {
connection.transaction.header.add("X-MYST", "1");
return next();
};

42
Implementierung/alpine-haraka/plugins/data_post_write_mail.js Normal file
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/*
Haraka Plugins for SMTP-based anonymization
Copyright (C) 2016 Julian Ospald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
var console = require('console');
var fs = require('fs');
var os = require('os');
var Address = require('./address').Address;
var Transaction = require('./transaction').Transaction;
var MessageStream = require('./messagestream');
var config = require('./config');
var uuid = require('./utils').uuid;
var tempDir = os.tmpdir();
// write mail to /tmp/mail.eml
exports.hook_data_post = function(next, connection) {
var ws = fs.createWriteStream(tempDir + '/mail.eml');
ws.once('close', function () {
return next(OK);
});
connection.transaction.message_stream.pipe(ws);
};

25
Implementierung/alpine-haraka/plugins/enable_parse_body.js Normal file
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/*
Haraka Plugins for SMTP-based anonymization
Copyright (C) 2016 Julian Ospald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
// enable parsing of the mail body
exports.hook_data = function(next, connection, params) {
connection.transaction.parse_body = true;
return next();
};

34
Implementierung/alpine-haraka/plugins/my_mx.js Normal file
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/*
Haraka Plugins for SMTP-based anonymization
Copyright (C) 2016 Julian Ospald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
'use strict';
var dns = require('dns');
/**
* Fake get_mx hook, which just resolves the domain to its ip address.
* This causes outbound.js to avoid dns.resolve, which would otherwise
* mess up with our test system.
*/
exports.hook_get_mx = function(next, hmail, domain) {
dns.lookup(domain, function (err, address, family) {
return next(OK, address);
})
}

168
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/*
Haraka Plugins for SMTP-based anonymization
Copyright (C) 2016 Julian Ospald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
var console = require('console');
var fs = require('fs');
var os = require('os');
var Address = require('./address').Address;
var MessageStream = require('./messagestream');
var Transaction = require('./transaction').Transaction;
var config = require('./config');
var uuid = require('./utils').uuid;
var outbound = require('./outbound');
exports.hook_data_post = function(next, connection) {
// if we have a myst mail, we need to inject our Protocol
if (is_myst_mail(connection.transaction.header)) {
// we decrypt the mail body and treat it as raw mail data
var decrypted_email = myst_decrypt(connection.transaction.body.bodytext);
// replace the current transaction object with the new one based
// on the decrypted_mail
var t = transform_transaction(decrypted_email, connection);
connection.transaction = t;
// the unpacked mail is a myst mail too, this means we have to relay it,
// otherwise it's handled by the normal haraka delivery methods
if (is_myst_mail(connection.transaction.header)) {
connection.relaying = true;
}
}
// let the other handlers do what they want, we are finished injecting
// our logic, the rest is still SMTP compliant
next();
}
/**
* Transforms the current transaction based on a given
* raw email string. This always parses the body.
*
* 'mail_from' and 'rcpt_to' are filled in from the email headers.
* The uuid and results are taken from the old transaction.
*
* @param {string} email the raw full email, including headers
* @param {Connection} connection the current connection object
* @return {Transaction} the new transaction
*/
function transform_transaction(email, connection) {
var email_lines = email.split("\n");
// create new empty transaction
var t = new Transaction();
t.uuid = connection.transaction.uuid;
t.parse_body = true;
t.message_stream = new MessageStream(
config.get('smtp.ini'), t.uuid,
t.header.header_list);
// parse the email and fill the object
var i;
for (i = 0; i < email_lines.length; i++) {
t.add_data(email_lines[i] + "\n");
}
t.end_data(function() { return ; })
// use old result object
t.results = connection.transaction.results;
// overwrite mail_from and rcpt_to
var from_addr = t.header.get("From").match(/[^@<\s]+@[^@\s>]+/g)[0];
var to_addr = t.header.get("To").match(/[^@<\s]+@[^@\s>]+/g);
var addresses = [];
for (i = 0; i < to_addr.length; i++) {
addresses.push(new Address(to_addr[i]));
}
t.mail_from = new Address(from_addr);
t.rcpt_to = addresses;
t.results.store.mail_from = new Address(from_addr);
t.results.store.rcpt_to = addresses;
return t;
}
/**
* Check whether the given header object identifies as a myst mail header
*
* @param {Header} header
* @return {Boolean} true/false
*/
function is_myst_mail(header) {
if (header.get("X-Myst")) {
return true;
}
return false;
}
/**
* Decrypts the whole mail and return
*
* @param {string} string encrypted string
* @return {string} the decrypted string
*/
function myst_decrypt(string) {
var b = new Buffer(string, 'base64').toString('utf8');
return b;
}
function send_myst_mail(email, connection) {
var email_lines = email.split("\n");
// create transaction for our mail, to make use of the internal parser
var t = new Transaction();
t.uuid = connection.transaction.uuid;
t.parse_body = true;
t.message_stream = new MessageStream(
config.get('smtp.ini'), t.uuid,
t.header.header_list);
// parse the email and fill the object
var i;
for (i = 0; i < email_lines.length; i++) {
t.add_data(email_lines[i] + "\n");
}
t.end_data(function() { return ; })
// use old result object, otherwise we get errors
t.results = connection.transaction.results;
// finally get mail_from and rcpt_to
// TODO: support multiple recipients for last hop
var from_addr = t.header.get("From").match(/[^@<\s]+@[^@\s>]+/g)[0];
var to_addr = t.header.get("To").match(/[^@<\s]+@[^@\s>]+/g);
var outnext = function(code, msg) {
next(OK);
}
// send mail
for (i = 0; i < to_addr.length; i++) {
outbound.send_email(from_addr, to_addr[i], email, outnext);
}
}

29
Implementierung/alpine-haraka/plugins/myst_send.js Normal file
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/*
Haraka Plugins for SMTP-based anonymization
Copyright (C) 2016 Julian Ospald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
'use strict';
var console = require('console');
exports.hook_send_email = function(next, hmail) {
return next(OK);
}

46
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/*
Haraka Plugins for SMTP-based anonymization
Copyright (C) 2016 Julian Ospald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
'use strict';
var console = require('console');
var Body = require('./mailbody').Body;
/**
* This acts as an open relay for non-local recipients
*/
exports.hook_rcpt = function(next, connection, params) {
if (is_local_rcpt(connection) == false) {
connection.relaying = true;
}
return next(OK);
}
function is_local_rcpt(connection) {
// TODO: get "rcpt.haraka" from the config files
// TODO: we currently only handle one recipient
if (connection.transaction.rcpt_to[0].host == "rcpt.haraka") {
return true;
}
return false;
}

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/*
Haraka Plugins for SMTP-based anonymization
Copyright (C) 2016 Julian Ospald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
var console = require('console');
var fs = require('fs');
var os = require('os');
var Address = require('./address').Address;
var Transaction = require('./transaction').Transaction;
var MessageStream = require('./messagestream');
var config = require('./config');
var uuid = require('./utils').uuid;
var tempDir = os.tmpdir();
// write mail to /tmp/mail.eml
exports.hook_queue = function(next, connection) {
var ws = fs.createWriteStream(tempDir + '/mail.eml');
ws.once('close', function () {
return next(OK);
});
connection.transaction.message_stream.pipe(ws);
};

10
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FROM alpine:3.3
MAINTAINER Julian Ospald <hasufell@posteo.de>
RUN echo "@testing http://nl.alpinelinux.org/alpine/edge/testing" \
>> /etc/apk/repositories && \
apk --no-cache add swaks@testing && \
rm -rf /var/cache/apk/*
EXPOSE 25

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Copyright Julian Ospald, 2016