Add end-to-end Test

- Add an infrastructur to run local e2e tests.
- Add some tests.

docker/MTAContainerFile

@@ -57,27 +57,6 @@ RUN apt-get update -yqq && \
   openssl \
   sq
 
-RUN adduser --shell /bin/bash --disabled-password --gecos "" user && \
-  mkdir -p /home/user/ && \
-  usermod -a -G sudo user && \
-  chown -R user:user /home/user
-
-RUN adduser --shell /bin/bash --disabled-password --gecos "" alice && \
-  mkdir -p /home/alice/ && \
-  chown -R alice:alice /home/alice
-
-RUN adduser --shell /bin/bash --disabled-password --gecos "" bob && \
-  mkdir -p /home/bob/ && \
-  chown -R bob:bob /home/bob
-
-RUN adduser --shell /bin/bash --disabled-password --gecos "" carol && \
-  mkdir -p /home/carol/ && \
-  chown -R carol:carol /home/carol
-
-RUN adduser --shell /bin/bash --disabled-password --gecos "" dave && \
-  mkdir -p /home/dave/ && \
-  chown -R dave:dave /home/dave
-
 RUN adduser --shell /bin/bash --disabled-password --gecos "" hockeypuck
 
 COPY mta_provision/ /

docker/README.md

@@ -26,6 +26,6 @@ The mapped binary will be started, alongside `postfix` and `hockeypuck`.
 
 ```
 $ docker run -ti --rm \
-  --mount type=bind,src=$(pwd)/target/release,dst=/opt/husk/mapped/
+  --mount type=bind,src=$(pwd),dst=/opt/husk/mapped/
   localhost/mta bash -c "/usr/bin/prepare.sh && bash -i"
 ```

docker/mta_provision/usr/bin/prepare.sh

@@ -7,8 +7,8 @@ echo "127.0.0.1 " $(hostname) > /etc/hosts
 echo "127.0.0.2 example.com" >> /etc/hosts
 
 ## build milter
-if [ -f /opt/husk/mapped/husk ] ; then
-  HUSK_BIN=/opt/husk/mapped/husk
+if [ -f /opt/husk/mapped/Cargo.toml ] ; then
+  HUSK_BIN=/opt/husk/mapped/target/release/husk
 else 
   cd /opt/husk
   git clone https://gitlab.com/husk-project/husk-milter.git

e2e-tests/local_run.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/bash
+
+cargo build --release
+
+docker run -ti \
+  --rm \
+  --mount type=bind,src=$(pwd),dst=/opt/husk/mapped/ \
+  localhost/mta \
+  bash -c "/usr/bin/prepare.sh && bash /opt/husk/mapped/e2e-tests/runner.sh"
+

e2e-tests/runner.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/bash
+
+cd $(dirname $0)
+
+for TEST in ./tests/* ; do
+  if bash $TEST ; then
+    echo "success"
+  else
+    echo "failure"
+    exit 1 
+  fi
+done

e2e-tests/tests/10_basic.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/bash
+
+echo "Basic: Test if MTA is working"
+
+adduser --shell /bin/bash --disabled-password --gecos "" mtatest
+echo "test mail" | sendmail mtatest@example.com
+
+sleep 1
+
+if [ -f /var/mail/mtatest ] ; then
+  RESULT_CODE=0
+else
+  RESULT_CODE=1 
+fi
+
+deluser --remove-home mtatest
+
+exit $RESULT_CODE

e2e-tests/tests/20_simple_encrypt.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/bash
+
+echo "Simple: Test encryption for available certificate"
+
+# There is an authenticated certificate for bob in the cert store
+adduser --shell /bin/bash --disabled-password --gecos "" bob
+echo "test mail" | sendmail bob@example.com
+
+sleep 1
+
+if [ -f /var/mail/bob ] ; then
+  if grep -q "BEGIN PGP MESSAGE" /var/mail/bob ; then
+    RESULT_CODE=0
+  else
+    echo "no encryption detected"
+    RESULT_CODE=1
+  fi
+else
+  echo "no mail detected"
+  RESULT_CODE=1 
+fi
+
+deluser --remove-home bob
+
+exit $RESULT_CODE

e2e-tests/tests/21_simple_not_encrypt.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/bash
+
+echo "Simple: Test encryption for unavailable certificate"
+
+# There is no authenticated certificate for alice in the cert store
+adduser --shell /bin/bash --disabled-password --gecos "" alice
+echo "test mail" | sendmail alice@example.com
+
+sleep 1
+
+if [ -f /var/mail/alice ] ; then
+  if grep -q "BEGIN PGP MESSAGE" /var/mail/alice ; then
+    echo "encryption detected - that is wrong"
+    RESULT_CODE=1
+  else
+    RESULT_CODE=0
+  fi
+else
+  echo "no mail detected"
+  RESULT_CODE=1 
+fi
+
+deluser --remove-home alice
+
+exit $RESULT_CODE

e2e-tests/tests/30_fetch.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/bash
+
+echo "Test encryption for certificate an a keyserver"
+
+# There is a certificate for carol on the keyserver
+# it's certified by an introducer
+adduser --shell /bin/bash --disabled-password --gecos "" carol
+echo "test mail" | sendmail carol@example.com
+
+sleep 1
+
+if [ -f /var/mail/carol ] ; then
+  if grep -q "BEGIN PGP MESSAGE" /var/mail/carol ; then
+    RESULT_CODE=0
+  else
+    echo "no encryption detected"
+    RESULT_CODE=1
+  fi
+else
+  echo "no mail detected"
+  RESULT_CODE=1 
+fi
+
+deluser --remove-home carol
+
+exit $RESULT_CODE