# Make sure packages come after their repos
File<| tag == 'repo-config' |> -> YumRepo<| |> -> Package<| |>

# Make sure all files are in  place before starting services
# FIXME: Title matches are to fix a dependency cycle
File<| tag != 'post-service' and title != '/etc/sysconfig/ip6tables' and title != '/etc/sysconfig/iptables' |> -> Service<| |>

# Set some shortcut variables
#$os = $operatingsystem
$osver = $operatingsystemmajrelease
$server = ''


class basenode {
	include sudo

	include defaultusers
	include logwatch

	file { '/etc/puppet/hiera.yaml':
		ensure => present,
		content => "
# Let the system set defaults
version: 5
",
	}
}

class basevpsnode (
	$primary_ip,
	$proxy_4to6_ip_prefix = undef,
	$proxy_upstream = undef,
	$nat64_ranges = [],
	$mailserver,
	$imapserver,
	$mailrelays = [],
	$firewall_cmd = 'iptables',
	) {

	if $firewall_cmd == 'iptables' {
		class { 'vpsfirewall':
			fw_protocol => $primary_ip =~ Stdlib::IP::Address::V6 ? { true => 'IPv6', default => 'IPv4'},
		}
	}

	#VPS is a self-mastered Puppet machine, so bodge a Hosts file
	if $primary_ip =~ Stdlib::IP::Address::V6 {
		$lo_ip = '::1'
	} else {
		$lo_ip = '127.0.0.1'
	}
	file { '/etc/hosts':
		ensure => present,
		content => "${lo_ip}   localhost\n${primary_ip} ${fqdn}",
	}

	if $proxy_4to6_ip_prefix != undef {
		# …:1 to …:9 for websites, …:10 for mail
		$ipv6_addresses = Integer[1, 10].map |$octet| { "$proxy_4to6_ip_prefix:$octet" }

		$ipv6_secondaries = join($ipv6_addresses, " ")

		augeas {'IPv6 secondary addresses':
			context => "/files/etc/sysconfig/network-scripts/ifcfg-eth0",
			changes => "set IPV6ADDR_SECONDARIES '\"$ipv6_secondaries\"'",
		}
	}

	require repos
	include basenode
	include privat
	include dnsresolver
	include ssh::server
	include vcs::server
	include vcs::client
	class { 'webserver':
		primary_ip => $primary_ip,
		proxy_4to6_ip_prefix => $proxy_4to6_ip_prefix,
		proxy_4to6_mask => 124,
		proxy_upstream => $proxy_upstream,
	}
	include cronjobs
	include logrotate
	class { 'fail2ban':
		firewall_cmd => $firewall_cmd,
	}
	include tools
	class { 'email':
		mailserver => $mailserver,
		imapserver => $imapserver,
		mailserver_ip => $primary_ip,
		proxy_ip => $proxy_4to6_ip_prefix != undef ? { true => "${proxy_4to6_ip_prefix}:10", default => undef },
		proxy_upstream => $proxy_upstream,
		nat64_ranges => $nat64_ranges,
		mailrelays => $mailrelays,
	}
}

## Classes to allow facet behaviour using preconfigured setups of classes

class vpsfirewall ($fw_protocol) {
	resources { "firewall":
		purge => false,
	}
	class { "my_fw":
		ip_version => $fw_protocol,
	}
	# Control what does and doesn't get pruned in the main filter chain
	firewallchain { "INPUT:filter:$fw_protocol":
		purge => true,
		ignore => [
			'-j f2b-[^ ]+$',
			'^(:|-A )f2b-',
			'--comment "Great Firewall of China"',
			'--comment "Do not purge',
			],
	}
	if ($fw_protocol != "IPv6") {
		firewall { '010 Whitelist Googlebot':
			source => '66.249.64.0/19',
			dport => [80,443],
			proto => tcp,
			action => accept,
		}
		# Block a spammer hitting our contact forms (also on StopForumSpam list A LOT)
		firewall { '099 Blacklist spammers 1':
			source => '107.181.78.172',
			dport => [80, 443],
			proto => tcp,
			action => 'reject',
		}
		firewall { '099 Blacklist IODC bot':
			# IODC bot makes too many bad requests, and contact form is broken
			# They don't publish a robots.txt name, so firewall it!
			source => '86.153.145.149',
			dport => [ 80, 443 ],
			proto => tcp,
			action => 'reject',
		}
		firewall { '099 Blacklist Baidu Brazil':
			#Baidu got a Brazilian netblock and are hitting us hard
			#Baidu doesn't honour "crawl-delay" in robots.txt
			#Baidu gets firewalled
			source => '131.161.8.0/22',
			dport => [ 80, 443 ],
			proto => tcp,
			action => 'reject',
		}
	}
	firewallchain { "GREATFIREWALLOFCHINA:filter:$fw_protocol":
		ensure => present,
	}
	firewall { '050 Check our Great Firewall Against China':
		chain => 'INPUT',
		jump => 'GREATFIREWALLOFCHINA',
	}
	firewallchain { "Fail2Ban:filter:$fw_protocol":
		ensure => present,
	}
	firewall { '060 Check Fail2Ban':
		chain => 'INPUT',
		jump => 'Fail2Ban',
	}
}

class dnsresolver {
	package { 'unbound':
		ensure => present,
	}
	package { 'named':
		ensure => absent,
	}

	service { 'named':
		ensure => stopped,
		enable => false,
	}
	service { 'unbound':
		ensure => running,
		enable => true,
	}

	file { '/etc/named.conf':
		ensure => absent,
	}
	file { '/etc/unbound/unbound.conf':
		ensure => present,
		source => [
                        "puppet:///common/unbound.conf-${::hostname}",
                        "puppet:///common/unbound.conf",
                ],
		group => 'named',
		require => Package['unbound'],
		notify => Service['unbound'],
	}

	file { '/etc/NetworkManager/conf.d/local-dns-resolver.conf':
		ensure => present,
		content => "[main]
dns=none",
	}

	file { '/etc/sysconfig/named':
		ensure => absent,
	}
	file { '/etc/resolv.conf':
		ensure => present,
		# "ipaddress" key only exists for machines with IPv4 addresses
		content => has_key($facts, 'ipaddress') ? { true => "nameserver 127.0.0.1", default => "nameserver ::1" },
		require => Service['unbound'],
		tag => 'post-service',
	}
}

class repos {
	yumrepo { 'epel':
		mirrorlist => 'https://mirrors.fedoraproject.org/metalink?repo=epel-$releasever&arch=$basearch',
		descr => "Extra Packages for Enterprise Linux",
		enabled => 1,
		failovermethod => 'priority',
		gpgcheck => 1,
		gpgkey => "file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-$osver",
	}
	file { "/etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-$osver":
		ensure => present,
		source => "puppet:///common/RPM-GPG-KEY-EPEL-$osver",
		tag => 'repo-config',
	}
	yumrepo { 'ibboard':
		baseurl => 'https://download.opensuse.org/repositories/home:/IBBoard:/server/CentOS_$releasever/',
		descr => 'Extra packages from IBBoard',
		enabled => 1,
		gpgcheck => 1,
		gpgkey => 'file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ibboard',
	}
	file { '/etc/pki/rpm-gpg/RPM-GPG-KEY-ibboard':
		ensure => present,
		source => 'puppet:///common/RPM-GPG-KEY-ibboard',
		tag => 'repo-config',
	}
	yumrepo { 'webtatic':
		ensure => absent,
	}
	file { '/etc/pki/rpm-gpg/RPM-GPG-KEY-webtatic-andy':
		ensure => absent,
	}
	file { '/etc/pki/rpm-gpg/RPM-GPG-KEY-webtatic-el7':
		ensure => absent,
	}

	if $operatingsystem == 'CentOS' and versioncmp($operatingsystemrelease, '8') >= 0 {
		$python_ver = 'python3'
	} else {
		$python_ver = 'system'
	}

	class { 'python':
		ensure => 'present',
		version => $python_ver,
		pip => 'present',
		virtualenv => 'present',
		use_epel => false,
	}
}

class tools {
	$packages = [ 'sqlite', 'bash-completion', 'nano', 'bzip2', 'mlocate', 'patch', 'tmux', 'wget', 'yum-utils', 'rsync' ]
	package { $packages:
		ensure => installed;
	}
}

class logrotate {
	package { 'logrotate':
		ensure => installed;
	}
	file { '/etc/logrotate.d/httpd':
		ensure => present,
		source => 'puppet:///common/logrotate-httpd',
		require => Package['logrotate'],
	}
	file { '/etc/logrotate.d/trac':
		ensure => present,
		source => 'puppet:///common/logrotate-trac',
		require => Package['logrotate'],
	}
}

class logwatch {
	package { 'logwatch':
		ensure => installed;
	}
	File {
		ensure => present,
		require => Package['logwatch'],
	}
	file { '/etc/cron.daily/0logwatch':
		source => 'puppet:///common/0logwatch';
	}
	$logwatch_dirs = [
		'/etc/logwatch/',
		'/etc/logwatch/conf/',
		'/etc/logwatch/conf/logfiles/',
		'/etc/logwatch/conf/services/',
		'/etc/logwatch/scripts/',
		'/etc/logwatch/scripts/services/',
	]
	file { $logwatch_dirs:
		ensure => directory,
	}
	file { '/etc/logwatch/conf/logwatch.conf':
		content => 'Detail = Med',
	}
	file { '/etc/logwatch/conf/logfiles/http.conf':
		content => 'LogFile = apache/access_*.log',
	}
	file { '/etc/logwatch/conf/logfiles/http-error.conf':
		source => 'puppet:///common/logwatch/logfiles_http-error.conf',
	}
	file { '/etc/logwatch/conf/logfiles/mysql.conf':
		source => 'puppet:///common/logwatch/logfiles_mysql.conf',
	}
	file { '/etc/logwatch/conf/logfiles/php.conf':
		source => 'puppet:///common/logwatch/logfiles_php.conf',
	}
	file { '/etc/logwatch/conf/services/php.conf':
		source => 'puppet:///common/logwatch/services_php.conf',
	}
	file { '/etc/logwatch/scripts/services/dovecot':
		source => 'puppet:///common/logwatch/dovecot',
	}
	file { '/etc/logwatch/scripts/services/postfix':
		source => 'puppet:///common/logwatch/postfix',
	}
	file { '/etc/logwatch/scripts/services/systemd':
		source => 'puppet:///common/logwatch/systemd',
	}
}

#Our web server with our configs, not just a stock one
class webserver (
	$primary_ip,
	$proxy_4to6_ip_prefix = undef,
	$proxy_4to6_mask = undef,
	$proxy_upstream = undef,
	) {

	#Setup base website parameters
	class { 'website':
		base_dir => '/srv/sites',
		primary_ip => $primary_ip,
		proxy_4to6_ip_prefix => $proxy_4to6_ip_prefix,
		proxy_4to6_mask => $proxy_4to6_mask,
		proxy_upstream => $proxy_upstream,
		default_owner => $defaultusers::default_user,
		default_group => $defaultusers::default_user,
		default_tld => 'co.uk',
		default_extra_tlds => [ 'com' ],
	}

	$php_suffix = ''
	if $operatingsystem == 'CentOS' and versioncmp($operatingsystemrelease, '8') >= 0 {
		yumrepo { 'remirepo-safe':
			mirrorlist => 'http://cdn.remirepo.net/enterprise/$releasever/safe/$basearch/mirror',
			descr => "Extra CentOS packages from Remi",
			enabled => 1,
			failovermethod => 'priority',
			gpgcheck => 1,
			gpgkey => 'file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi',
		}
		yumrepo { 'remirepo-php':
			mirrorlist => 'http://cdn.remirepo.net/enterprise/8/modular/$basearch/mirror',
			descr => 'Remi\'s Modular repository for Enterprise Linux 8 - $basearch',
			enabled => 1,
			failovermethod => 'priority',
			gpgcheck => 1,
			gpgkey => 'file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi',
		}
		file { '/etc/pki/rpm-gpg/RPM-GPG-KEY-remi':
			ensure => present,
			source => 'puppet:///common/RPM-GPG-KEY-remi.el8',
			tag => 'repo-config',
		}
	} else {
		yumrepo { 'remirepo-safe':
			mirrorlist => 'http://cdn.remirepo.net/enterprise/$releasever/safe/mirror',
			descr => "Extra CentOS packages from Remi",
			enabled => 1,
			failovermethod => 'priority',
			gpgcheck => 1,
			gpgkey => 'file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi',
		}
		yumrepo { 'remirepo-php':
			mirrorlist => 'http://cdn.remirepo.net/enterprise/$releasever/php74/mirror',
			descr => "PHP7.4 for CentOS from Remi",
			enabled => 1,
			failovermethod => 'priority',
			gpgcheck => 1,
			gpgkey => 'file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi',
		}
		file { '/etc/pki/rpm-gpg/RPM-GPG-KEY-remi':
			ensure => present,
			source => 'puppet:///common/RPM-GPG-KEY-remi',
			tag => 'repo-config',
		}
	}

	#Configure the PHP version to use
	class { 'website::php':
		suffix => $php_suffix,
		module => ($operatingsystem == 'CentOS' and versioncmp($operatingsystemrelease, '8') >= 0) ? { true => 'remi-7.4', default => undef },
		extras => [ 'process', 'intl', 'pecl-imagick', 'bcmath', 'pecl-zip', 'json', 'pecl-apcu' ],
	}

	#Setup MySQL, using (private) templates to make sure that we set non-std passwords and a default user

	if $operatingsystem == 'CentOS' and versioncmp($operatingsystemrelease, '7') >= 0 {
		$mysqlpackage = 'mariadb'
		$mysqlsuffix = ''

		# Required for SELinux rule setting/status checks
		if versioncmp($operatingsystemrelease, '8') >= 0 {
			$semanage_package_name = 'policycoreutils-python-utils'
		} else {
			$semanage_package_name = 'policycoreutils-python'
		}

		package { 'policycoreutils-python':
			name => $semanage_package_name,
			ensure => present,
		}

		$extra_packages = [
			'perl-Sys-Syslog', #Required for Perl SPF checking
		]

		package { $extra_packages:
			 ensure => installed
		}
	}
	else {
		$mysqlpackage = 'mysql'
		$mysqlsuffix = '55w'
	}
	class { 'website::mysql':
		mysqluser => template('defaultusers/mysql-user'),
		mysqlpassword => template('defaultusers/mysql-password'),
		mysqlprefix => $mysqlpackage,
		mysqlsuffix => $mysqlsuffix,
		phpsuffix => $php_suffix,
		phpmysqlsuffix => 'nd'
	}
}

class ibboardvpsnode (
	$primary_ip,
	$proxy_4to6_ip_prefix = undef,
	$proxy_upstream = undef,
	$nat64_ranges = [],
	$mailserver,
	$imapserver,
	$mailrelays = [],
	$firewall_cmd = 'iptables',
	){
	class { 'basevpsnode':
		primary_ip => $primary_ip,
		proxy_4to6_ip_prefix => $proxy_4to6_ip_prefix,
		proxy_upstream => $proxy_upstream,
		nat64_ranges => $nat64_ranges,
		mailserver => $mailserver,
		imapserver => $imapserver,
		mailrelays => $mailrelays,
		firewall_cmd => $firewall_cmd,
	}

	# Set timezone to something sensible
	file { "/etc/localtime":
		ensure => 'link',
		target => '/usr/share/zoneinfo/Europe/London',
	}

	# Common modules used by multiple sites (mod_auth_basic is safe because we HTTPS all the things)
	$mods = [ 'auth_basic',
		'authn_file',
		'authz_user',
		'deflate',
		'xsendfile'
		]
	apache::mod {
		$mods:;
	}
	if $operatingsystem == 'CentOS' and versioncmp($operatingsystemrelease, '7') >= 0 {
		apache::mod {
			'authn_core':;
		}
	}

	#Configure our sites, using templates for the custom fragments where the extra content is too long
	class { "devsite":
		proxy_4to6_ip => $proxy_4to6_ip_prefix != undef ? { true => "$proxy_4to6_ip_prefix:01", default => undef }
	}
	class { "adminsite":
		proxy_4to6_ip => $proxy_4to6_ip_prefix != undef ? { true => "$proxy_4to6_ip_prefix:02", default => undef }
	}
	website::https::multitld { 'www.ibboard':
		proxy_4to6_ip => $proxy_4to6_ip_prefix != undef ? { true => "$proxy_4to6_ip_prefix:03", default => undef },
		custom_fragment => template("privat/apache/ibboard.fragment"),
		letsencrypt_name => 'ibboard.co.uk',
		csp_override => {
			"report-uri" => "https://ibboard.report-uri.com/r/d/csp/enforce",
			"default-src" => "'none'",
			"img-src" => "'self' https://live.staticflickr.com/",
			"script-src" => "'self'",
			"style-src" => "'self'",
			"font-src" => "'self'",
			"form-action" => "'self'",
			"connect-src" => "'self'",
		}
	}
	class { "hiveworldterrasite":
		proxy_4to6_ip => $proxy_4to6_ip_prefix != undef ? { true => "$proxy_4to6_ip_prefix:04", default => undef }
	}
	class { "bdstrikesite":
		proxy_4to6_ip => $proxy_4to6_ip_prefix != undef ? { true => "$proxy_4to6_ip_prefix:05", default => undef }
	}
	website::https::multitld { 'www.abiknight':
		proxy_4to6_ip => $proxy_4to6_ip_prefix != undef ? { true => "$proxy_4to6_ip_prefix:06", default => undef },
		custom_fragment => "$website::htmlphpfragment
	ErrorDocument 404 /error.php",
		letsencrypt_name => 'abiknight.co.uk',
	}
	website::https::multitld { 'www.warfoundry':
		proxy_4to6_ip => $proxy_4to6_ip_prefix != undef ? { true => "$proxy_4to6_ip_prefix:07", default => undef },
		letsencrypt_name => 'warfoundry.co.uk',
		custom_fragment => template("privat/apache/warfoundry.fragment"),
	}
	class { "webmailpimsite":
		proxy_4to6_ip_pim => $proxy_4to6_ip_prefix != undef ? { true => "$proxy_4to6_ip_prefix:08", default => undef },
		proxy_4to6_ip_webmail => $proxy_4to6_ip_prefix != undef ? { true => "$proxy_4to6_ip_prefix:09", default => undef },
	}
}

class adminsite ($proxy_4to6_ip) {
	apache::mod { 'info':; 'status':; 'cgi':; }
	website::https::multitld { 'admin.ibboard':
		proxy_4to6_ip => $proxy_4to6_ip,
		force_no_index => false,
		ssl_ca_chain => '',
		custom_fragment => template("privat/apache/admin.fragment"),
	}
	cron { 'loadavg':
		command => '/usr/local/bin/run-loadavg-logger',
		user => apache,
		minute => '*/6'
	}
	cron { 'awstats':
		command => '/usr/local/bin/update-awstats > /srv/sites/admin/awstats.log',
		user => apache,
		hour => '*/6',
		minute => '0'
	}
}

class hiveworldterrasite ($proxy_4to6_ip) {
	website::https::multitld { 'www.hiveworldterra':
		proxy_4to6_ip => $proxy_4to6_ip,
		force_no_www => false,
		letsencrypt_name => 'hiveworldterra.co.uk',
		custom_fragment => template("privat/apache/hwt.fragment"),
	}
	website::https::multitld { 'forums.hiveworldterra': 
		proxy_4to6_ip => $proxy_4to6_ip,
		letsencrypt_name => 'forums.hiveworldterra.co.uk',
		custom_fragment => template("privat/apache/forums.fragment"),
	}
	website::https::multitld { 'skins.hiveworldterra':
		proxy_4to6_ip => $proxy_4to6_ip,
		letsencrypt_name => 'skins.hiveworldterra.co.uk',
		custom_fragment => template("privat/apache/skins.fragment"),
	}
	website::https::redir { 'hiveworldterra.ibboard.co.uk':
		proxy_4to6_ip => $proxy_4to6_ip,
		redir => 'https://www.hiveworldterra.co.uk/',
		docroot => "${website::basedir}/hiveworldterra",
		letsencrypt_name => 'hiveworldterra.ibboard.co.uk',
		separate_log => true,
	}
}
class bdstrikesite ($proxy_4to6_ip) {
	website::https::multitld { 'www.bdstrike':
		proxy_4to6_ip => $proxy_4to6_ip,
		docroot_owner => $defaultusers::secondary_user,
		docroot_group => 'editors',
		letsencrypt_name => 'bdstrike.co.uk',
		custom_fragment => template("privat/apache/bdstrike.fragment"),
		csp_override => {"frame-ancestors" => "'self'"},
		csp_report_override => {
			"font-src" => "'self' https://fonts.gstatic.com/",
			"img-src" => "'self' https://secure.gravatar.com/",
			"style-src" => "'self' https://fonts.googleapis.com/"
		},
	}
	$aliases = [
		'strikecreations.co.uk',
		'strikecreations.com',
		'www.strikecreations.com' ]

	website::https::redir { 'www.strikecreations.co.uk':
		proxy_4to6_ip => $proxy_4to6_ip,
		redir => 'https://bdstrike.co.uk/',
		serveraliases => $aliases,
		docroot => "${website::basedir}/bdstrike",
		docroot_owner => $defaultusers::secondary_user,
		docroot_group => 'editors',
		letsencrypt_name => 'strikecreations.com',
		separate_log => true,
	}
	cron { 'wordpress_cron':
		# Run "php -f wp-cron.php" on a schedule so that we can auto-update
		# without giving Apache full write access!
		command => "/usr/local/bin/bdstrike-cron",
		user => $defaultusers::default_user,
		minute => '*/15',
	}
}
class devsite ($proxy_4to6_ip) {
	if versioncmp($operatingsystemrelease, '8') >= 0 {
		# Apache::Mod doesn't map this correctly for CentOS 8 yet
		$mod_wsgi_lib = 'mod_wsgi_python3.so'
		# And mod_wsgi doesn't exist as a "provides" any more
		$mod_wsgi_package = 'python3-mod_wsgi'
	} else {
		$mod_wsgi_lib = undef
		$mod_wsgi_package = undef
	}
	apache::mod {
		# mod_wsgi for Python support
		'wsgi':
		  lib => $mod_wsgi_lib,
		  package => $mod_wsgi_package,
	}

	# Create Python virtualenvs for the dev site apps
	file {
		"/srv/rhodecode":
			ensure => 'directory';
		"/srv/trac":
			ensure => 'directory';
	} ->
	python::virtualenv {
		# Distribute is described as "simple compatibility layer that installs Setuptools 0.7+"
		# and leads to 'module "importlib._bootstrap" has no attribute "SourceFileLoader"'
		"/srv/rhodecode/virtualenv":
			distribute => false,
			version => '3';
		"/srv/trac/virtualenv":
			distribute => false,
			version => '3';
	}

	# Graphviz for Trac "master ticket" graphs
	package { 'graphviz':
		ensure => installed,
	}

	website::https::multitld { 'dev.ibboard':
		proxy_4to6_ip => $proxy_4to6_ip,
		#Make sure we're the first one hit for the tiny fraction of "no support" cases we care about (potentially Python for Mercurial!)
		# http://en.wikipedia.org/wiki/Server_Name_Indication#No_support
		priority => 1,
		letsencrypt_name => 'dev.ibboard.co.uk',
		custom_fragment => template("privat/apache/dev.fragment"),
		proxy_fragment => template("privat/apache/dev-proxy.fragment"),
		force_no_index => false,
	}
}

class webmailpimsite ($proxy_4to6_ip_pim, $proxy_4to6_ip_webmail) {
	# Webmail and Personal Information Management (PIM) sites
	website::https { 'webmail.ibboard.co.uk':
		proxy_4to6_ip => $proxy_4to6_ip_webmail,
		force_no_index => false,
		ssl_ca_chain => '',
		custom_fragment => template("privat/apache/webmail.fragment"),
	}
	website::https { 'pim.ibboard.co.uk':
		proxy_4to6_ip => $proxy_4to6_ip_pim,
		docroot_owner => 'apache',
		docroot_group => 'editors',
		force_no_index => false,
		lockdown_requests => false,
		ssl_ca_chain => '',
		csp => false,
		csp_report => false,
		custom_fragment => template("privat/apache/pim.fragment"),
	}
	cron { 'owncloudcron':
		command => "/usr/local/bin/owncloud-cron",
		user => 'apache',
		minute => '*/15',
	}
}

class email (
	$mailserver,
	$imapserver,
	$mailserver_ip,
	$proxy_ip = undef,
	$proxy_upstream = [],
	$nat64_ranges = [],
	$mailrelays = [],
	){
	class { 'postfix':
		mailserver => $mailserver,
		mailserver_ip => $mailserver_ip,
		mailserver_proxy => $proxy_ip,
		proxy_upstream => $proxy_upstream,
		mailrelays => $mailrelays,
		nat64_ranges => $nat64_ranges,
		protocols  => $mailserver_ip =~ Stdlib::IP::Address::V6 ? { true => 'all', default => 'ipv4' },
	}
	class { 'dovecot':
		imapserver => $imapserver,
		imapserver_ip => $mailserver_ip,
		imapserver_proxy => $proxy_ip,
		proxy_upstream => $proxy_upstream,
	}
	# Unspecified SpamAssassin config dependencies that started
	# showing up as errors in our logs
	package { ['perl-File-MimeInfo']:
		ensure => installed,
	}
	package { [ 'amavisd-new' ]:
		ensure => installed,
		tag => 'av',
	}
	service { 'amavisd':
		ensure => 'running',
		enable => 'true',
	}
	service { 'clamd@amavisd':
		ensure => 'stopped',
		enable=> 'mask',
	}
	file { '/etc/amavisd/amavisd.conf':
		ensure => present,
		source => 'puppet:///private/postfix/amavisd.conf',
		tag => 'av',
	}
	file { '/etc/mail/spamassassin/local.cf':
		ensure => present,
		source => 'puppet:///private/postfix/spamassassin-local.cf',
		tag => 'av',
	}
	file { '/etc/mail/spamassassin/ole2macro.cf':
		ensure => present,
		source => 'puppet:///common/ole2macro.cf',
		tag => 'av',
	}
	file { '/etc/mail/spamassassin/ole2macro.pm':
		ensure => present,
		source => 'puppet:///common/spamassassin-vba-macro-master/ole2macro.pm',
		tag => 'av',
	}
	Package<| tag == 'av' |> -> File<| tag == 'av' |>
	File<| tag == 'av' |> {
		notify => Service['amavisd'],
	}
	cron { 'Postwhite':
		command => "/usr/local/bin/postwhite 2>&1| grep -vE '^(Starting|Recursively|Getting|Querying|Removing|Sorting|$)'",
		user => 'root',
		weekday => 0,
		hour => 2,
		minute => 0,
	}
}

class cronjobs {
	# Add Mutt for scripts that send emails, but stop it clogging the disk by keeping copies of emails
	package { 'mutt':
		ensure => installed,
	}
	file { '/etc/Muttrc.local':
		content => 'set copy = no',
		require => Package['mutt'],
	}

	# General server-wide cron jobs
	Cron { user => 'root' }
	cron { 'backupalldbs':
		command => "/usr/local/bin/backupalldbs",
		monthday => "*/2",
		hour => "4",
		minute => "9"
	}
	# Only run the Great Firewall Against China on IPv4 (since we don't have an IPv6 list
	# and the PROXY forwards the IPs to services, but not at the network level)
	cron { 'greatfirewallofchina':
		command => '/usr/local/bin/update-great-firewall-of-china',
		ensure => has_key($facts, 'ipaddress') ? { true => "present", default => "absent" },
		hour => 3,
		minute => 30
	}
	cron { 'permissions':
		command => '/usr/local/bin/set-permissions',
		hour => 3,
		minute => 2
	}
	# Since we're only managing the local server, use our script that wraps "puppet apply" instead of PuppetMaster
	cron { 'puppet':
		command => '/usr/local/bin/puppet-apply | grep -v "Compiled catalog for\|Finished catalog run in\|Applied catalog in"',
		hour => '*/6',
		minute => 5
	}
	cron { 'purgecaches':
		command => "/usr/local/bin/purge-caches",
		hour => '4',
		minute => '15',
		weekday => '1',
	}
	# Notify of uncommitted files
	cron { 'check-mercurial-committed':
		command => "/usr/local/bin/check-hg-status",
		hour => '4',
		minute => '20',
		weekday => '0-6/3', #Sunday, Wednesday and Saturday morning
	}
	# Notify of available updates
	cron { 'check-yum-updates':
		command => '/usr/bin/yum check-update | tail -2 | grep -Ev "^ \* [[:alnum:]-]+: [[:alnum:]\.]+$"',
		hour => '4',
		minute => '30',
		weekday => '0-6/3', #Sunday, Wednesday and Saturday morning
	}
	# And check whether anything needs restarting
	cron { 'check-needs-restarting':
		command => '/usr/bin/needs-restarting|grep -v "/usr/lib/systemd\|/usr/sbin/lvmetad\|/usr/lib/polkit-1/polkitd"',
		hour => '4',
		minute => '45',
		weekday => '0-6/3', #Sunday, Wednesday and Saturday morning
	}
}