Initial commit of a log capture and reporting feature

This adds a new section to the admin panel called "Activity", that
supplies charts, graphs and details about messages entering and leaving
the host.

A new daemon captures details of system mail activity by monitoring
the /var/log/mail.log file, summarizing it into a sqllite database
that's kept in user-data.

setup/management-capture.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+source setup/functions.sh
+source /etc/mailinabox.conf # load global vars
+
+echo "Installing miabldap-capture daemon..."
+
+conf="$STORAGE_ROOT/reporting/config.json"
+
+if [ ! -e "$conf" ]; then
+    mkdir -p $(dirname "$conf")
+    cat > "$conf" <<EOF
+{
+    "capture": true,
+    "prune_policy": {
+        "frequency_min": 2400,
+        "older_than_days": 30
+    },
+    "drop_disposition": {
+        "failed_login_attempt": false,
+        "suspected_scanner": false,
+        "reject": false
+    }
+}
+EOF
+fi
+
+sed "s|%BIN%|$(pwd)|g" conf/miabldap-capture.service > /etc/systemd/system/miabldap-capture.service
+
+systemctl daemon-reload
+systemctl enable miabldap-capture
+systemctl start miabldap-capture

setup/start.sh

@@ -115,6 +115,7 @@ source setup/webmail.sh
 source setup/nextcloud.sh
 source setup/zpush.sh
 source setup/management.sh
+source setup/management-capture.sh
 source setup/munin.sh
 
 # Wait for the management daemon to start...