Avoid using tainted data to construct file names in exim configuration

[chef.git] / cookbooks / exim / recipes / default.rb

diff --git a/cookbooks/exim/recipes/default.rb b/cookbooks/exim/recipes/default.rb
index 6b20f5181592f7c7213069fd129b086ca61f85bc..f1c9ddf22bb2269e7806531f299eab238027756a 100644 (file)
--- a/cookbooks/exim/recipes/default.rb
+++ b/cookbooks/exim/recipes/default.rb
@@ -1,8 +1,8 @@
 #
-# Cookbook Name:: exim
+# Cookbook:: exim
 # Recipe:: default
 #
-# Copyright 2011, OpenStreetMap Foundation
+# Copyright:: 2011, OpenStreetMap Foundation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,7 +17,9 @@
 # limitations under the License.
 #
 
+include_recipe "munin"
 include_recipe "networking"
+include_recipe "prometheus"
 
 package %w[
   exim4
@@ -25,7 +27,9 @@ package %w[
   ssl-cert
 ]
 
-package "exim4-daemon-heavy" if File.exist?("/var/run/clamav/clamd.ctl")
+package "exim4-daemon-heavy" do
+  only_if { ::File.exist?("/var/run/clamav/clamd.ctl") }
+end
 
 group "ssl-cert" do
   action :modify
@@ -33,21 +37,35 @@ group "ssl-cert" do
   append true
 end
 
-openssl_x509_certificate "/etc/ssl/certs/exim.pem" do
-  key_file "/etc/ssl/private/exim.key"
-  owner "root"
-  group "ssl-cert"
-  mode 0o640
-  org "OpenStreetMap"
-  email "postmaster@openstreetmap.org"
-  common_name node[:fqdn]
-  expire 3650
+if node[:exim][:certificate_names]
+  include_recipe "apache"
+
+  apache_site node[:exim][:certificate_names].first do
+    template "apache.erb"
+    variables :aliases => node[:exim][:certificate_names].drop(1)
+  end
+
+  ssl_certificate node[:exim][:certificate_names].first do
+    domains node[:exim][:certificate_names]
+    notifies :restart, "service[exim4]"
+  end
+else
+  openssl_x509_certificate "/etc/ssl/certs/exim.pem" do
+    key_file "/etc/ssl/private/exim.key"
+    owner "root"
+    group "ssl-cert"
+    mode "640"
+    org "OpenStreetMap"
+    email "postmaster@openstreetmap.org"
+    common_name node[:fqdn]
+    expire 3650
+    notifies :restart, "service[exim4]"
+  end
 end
 
 service "exim4" do
   action [:enable, :start]
   supports :status => true, :restart => true, :reload => true
-  subscribes :restart, "execute[/etc/ssl/certs/exim.pem]"
 end
 
 relay_to_domains = node[:exim][:relay_to_domains]
@@ -59,22 +77,97 @@ end
 relay_from_hosts = node[:exim][:relay_from_hosts]
 
 if node[:exim][:smarthost_name]
+  search(:node, "roles:gateway") do |gateway|
+    allowed_ips = gateway.interfaces(:role => :internal).map do |interface|
+      "#{interface[:network]}/#{interface[:prefix]}"
+    end
+
+    node.default[:networking][:wireguard][:peers] << {
+      :public_key => gateway[:networking][:wireguard][:public_key],
+      :allowed_ips => allowed_ips,
+      :endpoint => "#{gateway.name}:51820"
+    }
+  end
+
   search(:node, "exim_smarthost_via:#{node[:exim][:smarthost_name]}\\:*").each do |host|
     relay_from_hosts |= host.ipaddresses(:role => :external)
   end
+
+  domains = node[:exim][:certificate_names].select { |c| c =~ /^a\.mx\./ }.collect { |c| c.sub(/^a\.mx./, "") }
+  primary_domain = domains.first
+
+  directory "/srv/mta-sts.#{primary_domain}" do
+    owner "root"
+    group "root"
+    mode "755"
+  end
+
+  domains.each do |domain|
+    template "/srv/mta-sts.#{primary_domain}/#{domain}.txt" do
+      source "mta-sts.erb"
+      owner "root"
+      group "root"
+      mode "644"
+      variables :domain => domain
+    end
+  end
+
+  ssl_certificate "mta-sts.#{primary_domain}" do
+    domains domains.collect { |d| "mta-sts.#{d}" }
+    notifies :reload, "service[apache2]"
+  end
+
+  apache_site "mta-sts.#{primary_domain}" do
+    template "apache-mta-sts.erb"
+    directory "/srv/mta-sts.#{primary_domain}"
+    variables :domains => domains
+  end
 end
 
 file "/etc/exim4/blocked-senders" do
   owner "root"
   group "Debian-exim"
-  mode 0o644
+  mode "644"
+end
+
+if node[:exim][:dkim_selectors]
+  keys = data_bag_item("exim", "dkim")
+
+  template "/etc/exim4/dkim-domains" do
+    owner "root"
+    source "dkim-domains.erb"
+    group "Debian-exim"
+    mode "644"
+  end
+
+  template "/etc/exim4/dkim-selectors" do
+    owner "root"
+    source "dkim-selectors.erb"
+    group "Debian-exim"
+    mode "644"
+  end
+
+  directory "/etc/exim4/dkim-keys" do
+    owner "root"
+    group "Debian-exim"
+    mode "755"
+  end
+
+  node[:exim][:dkim_selectors].each do |domain, _selector|
+    file "/etc/exim4/dkim-keys/#{domain}" do
+      content keys[domain].join("\n")
+      owner "root"
+      group "Debian-exim"
+      mode "640"
+    end
+  end
 end
 
 template "/etc/exim4/exim4.conf" do
   source "exim4.conf.erb"
   owner "root"
   group "Debian-exim"
-  mode 0o644
+  mode "644"
   variables :relay_to_domains => relay_to_domains.sort,
             :relay_from_hosts => relay_from_hosts.sort
   notifies :restart, "service[exim4]"
@@ -101,23 +194,27 @@ template "/etc/aliases" do
   source "aliases.erb"
   owner "root"
   group "root"
-  mode 0o644
+  mode "644"
 end
 
 remote_directory "/etc/exim4/noreply" do
   source "noreply"
   owner "root"
   group "Debian-exim"
-  mode 0o755
+  mode "755"
   files_owner "root"
   files_group "Debian-exim"
-  files_mode 0o755
+  files_mode "755"
   purge true
 end
 
 munin_plugin "exim_mailqueue"
 munin_plugin "exim_mailstats"
 
+prometheus_exporter "exim" do
+  port 9636
+end
+
 if node[:exim][:smarthost_name]
   node[:exim][:daemon_smtp_ports].each do |port|
     firewall_rule "accept-inbound-smtp-#{port}" do
@@ -142,7 +239,7 @@ else
   end
 end
 
-if node[:exim][:smarthost_via] # ~FC023
+if node[:exim][:smarthost_via]
   firewall_rule "deny-outbound-smtp" do
     action :reject
     source "fw"