From 5789892d2b2e533ee5331a47b33c5df97ccdbf88 Mon Sep 17 00:00:00 2001
From: Martin Weinelt <hexa@darmstadt.ccc.de>
Date: Thu, 10 Jun 2021 13:25:26 +0200
Subject: [PATCH] contrib: import hardened systemd units

I developed these for the NixOS module and have been using them with
SQLite for quite some time.
---
 contrib/pinnwand-reaper.service | 35 ++++++++++++++++++++++++++++++
 contrib/pinnwand-reaper.timer   | 13 +++++++++++
 contrib/pinnwand.service        | 38 +++++++++++++++++++++++++++++++++
 pinnwand.service-example        |  9 --------
 4 files changed, 86 insertions(+), 9 deletions(-)
 create mode 100644 contrib/pinnwand-reaper.service
 create mode 100644 contrib/pinnwand-reaper.timer
 create mode 100644 contrib/pinnwand.service
 delete mode 100644 pinnwand.service-example

diff --git a/contrib/pinnwand-reaper.service b/contrib/pinnwand-reaper.service
new file mode 100644
index 0000000..404e180
--- /dev/null
+++ b/contrib/pinnwand-reaper.service
@@ -0,0 +1,35 @@
+[Unit]
+Description=Pinnwand Reaper
+Documentation=https://pinnwand.readthedocs.io/en/latest/
+
+[Service]
+CapabilityBoundingSet=
+DevicePolicy=closed
+DynamicUser=true
+ExecStart=/usr/local/bin/pinnwand --configuration-path /etc/pinnwand.toml -vvvv reap
+LockPersonality=true
+MemoryDenyWriteExecute=true
+PrivateDevices=true
+PrivateUsers=true
+ProcSubset=pid
+ProtectClock=true
+ProtectControlGroups=true
+ProtectHome=true
+ProtectHostname=true
+ProtectKernelLogs=true
+ProtectKernelModules=true
+ProtectKernelTunables=true
+ProtectProc=invisible
+RestrictAddressFamilies=AF_UNIX
+RestrictAddressFamilies=AF_INET
+RestrictAddressFamilies=AF_INET6
+RestrictNamespaces=true
+RestrictRealtime=true
+StateDirectory=pinnwand
+StateDirectoryMode=0700
+SystemCallArchitectures=native
+SystemCallFilter=@system-service
+SystemCallFilter=~@privileged @resources
+UMask=0077
+User=pinnwand
+
diff --git a/contrib/pinnwand-reaper.timer b/contrib/pinnwand-reaper.timer
new file mode 100644
index 0000000..934f49a
--- /dev/null
+++ b/contrib/pinnwand-reaper.timer
@@ -0,0 +1,13 @@
+[Unit]
+Description=Clear expired pastes regularly
+
+[Timer]
+AccuracySec=43200s
+FixedRandomDelay=true
+OnCalendar=daily
+Persistent=yes
+RandomizedDelaySec=24h
+Unit=pinnwand-reaper.service
+
+[Install]
+WantedBy=timers.target
diff --git a/contrib/pinnwand.service b/contrib/pinnwand.service
new file mode 100644
index 0000000..0d13fc0
--- /dev/null
+++ b/contrib/pinnwand.service
@@ -0,0 +1,38 @@
+[Unit]
+After=network.target
+Description=Pinnwannd HTTP Server
+Documentation=https://pinnwand.readthedocs.io/en/latest/
+
+[Service]
+CapabilityBoundingSet=
+DevicePolicy=closed
+DynamicUser=true
+ExecStart=/usr/local/bin/pinnwand --configuration-path /etc/pinnwand.toml http --port 4100
+LockPersonality=true
+MemoryDenyWriteExecute=true
+PrivateDevices=true
+PrivateUsers=true
+ProcSubset=pid
+ProtectClock=true
+ProtectControlGroups=true
+ProtectHome=true
+ProtectHostname=true
+ProtectKernelLogs=true
+ProtectKernelModules=true
+ProtectKernelTunables=true
+ProtectProc=invisible
+RestrictAddressFamilies=AF_UNIX
+RestrictAddressFamilies=AF_INET
+RestrictAddressFamilies=AF_INET6
+RestrictNamespaces=true
+RestrictRealtime=true
+StateDirectory=pinnwand
+StateDirectoryMode=0700
+SystemCallArchitectures=native
+SystemCallFilter=@system-service
+SystemCallFilter=~@privileged @resources
+UMask=0077
+User=pinnwand
+
+[Install]
+WantedBy=multi-user.target
diff --git a/pinnwand.service-example b/pinnwand.service-example
deleted file mode 100644
index e3c1b19..0000000
--- a/pinnwand.service-example
+++ /dev/null
@@ -1,9 +0,0 @@
-[Unit]
-Description=pinnwand pastebin
-
-[Service]
-ExecStart=/home/youruser/virtual-environment/bin/pinnwand --configuration-path /home/youruser/pinnwand.toml http
-Restart=always
-
-[Install]
-WantedBy=multi-user.target