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	# Class: apache
	#
	# This class installs Apache
	#
	# Parameters:
	#
	# Actions:
	# - Install Apache
	# - Manage Apache service
	#
	# Requires:
	#
	# Sample Usage:
	#
	class apache (
	$apache_name = $::apache::params::apache_name,
	$service_name = $::apache::params::service_name,
	$default_mods = true,
	$default_vhost = true,
	$default_confd_files = true,
	$default_ssl_vhost = false,
	$default_ssl_cert = $::apache::params::default_ssl_cert,
	$default_ssl_key = $::apache::params::default_ssl_key,
	$default_ssl_chain = undef,
	$default_ssl_ca = undef,
	$default_ssl_crl_path = undef,
	$default_ssl_crl = undef,
	$ip = undef,
	$service_enable = true,
	$service_ensure = 'running',
	$purge_configs = true,
	$purge_vhost_dir = undef,
	$serveradmin = 'root@localhost',
	$sendfile = 'On',
	$error_documents = false,
	$timeout = '120',
	$httpd_dir = $::apache::params::httpd_dir,
	$server_root = $::apache::params::server_root,
	$confd_dir = $::apache::params::confd_dir,
	$vhost_dir = $::apache::params::vhost_dir,
	$vhost_enable_dir = $::apache::params::vhost_enable_dir,
	$mod_dir = $::apache::params::mod_dir,
	$mod_enable_dir = $::apache::params::mod_enable_dir,
	$mpm_module = $::apache::params::mpm_module,
	$conf_template = $::apache::params::conf_template,
	$servername = $::apache::params::servername,
	$manage_user = true,
	$manage_group = true,
	$user = $::apache::params::user,
	$group = $::apache::params::group,
	$keepalive = $::apache::params::keepalive,
	$keepalive_timeout = $::apache::params::keepalive_timeout,
	$max_keepalive_requests = $apache::params::max_keepalive_requests,
	$logroot = $::apache::params::logroot,
	$log_level = $::apache::params::log_level,
	$log_formats = {},
	$ports_file = $::apache::params::ports_file,
	$apache_version = $::apache::version::default,
	$server_tokens = 'OS',
	$server_signature = 'On',
	$trace_enable = 'On',
	$package_ensure = 'installed',
	) inherits ::apache::params {
	validate_bool($default_vhost)
	validate_bool($default_ssl_vhost)
	validate_bool($default_confd_files)
	# true/false is sufficient for both ensure and enable
	validate_bool($service_enable)

	$valid_mpms_re = $apache_version ? {
	'2.4' => '(event\|itk\|peruser\|prefork\|worker)',
	default => '(event\|itk\|prefork\|worker)'
	}

	if $mpm_module {
	validate_re($mpm_module, $valid_mpms_re)
	}

	# NOTE: on FreeBSD it's mpm module's responsibility to install httpd package.
	# NOTE: the same strategy may be introduced for other OSes. For this, you
	# should delete the 'if' block below and modify all MPM modules' manifests
	# such that they include apache::package class (currently event.pp, itk.pp,
	# peruser.pp, prefork.pp, worker.pp).
	if $::osfamily != 'FreeBSD' {
	package { 'httpd':
	ensure => $package_ensure,
	name => $apache_name,
	notify => Class['Apache::Service'],
	}
	}
	validate_re($sendfile, [ '^[oO]n$' , '^[oO]ff$' ])

	# declare the web server user and group
	# Note: requiring the package means the package ought to create them and not puppet
	validate_bool($manage_user)
	if $manage_user {
	user { $user:
	ensure => present,
	gid => $group,
	require => Package['httpd'],
	}
	}
	validate_bool($manage_group)
	if $manage_group {
	group { $group:
	ensure => present,
	require => Package['httpd']
	}
	}

	$valid_log_level_re = '(emerg\|alert\|crit\|error\|warn\|notice\|info\|debug)'

	validate_re($log_level, $valid_log_level_re,
	"Log level '${log_level}' is not one of the supported Apache HTTP Server log levels.")

	class { '::apache::service':
	service_name => $service_name,
	service_enable => $service_enable,
	service_ensure => $service_ensure,
	}

	# Set purge vhostd appropriately
	if $purge_vhost_dir == undef {
	$_purge_vhost_dir = $purge_configs
	} else {
	$_purge_vhost_dir = $purge_vhost_dir
	}

	Exec {
	path => '/bin:/sbin:/usr/bin:/usr/sbin',
	}

	exec { "mkdir ${confd_dir}":
	creates => $confd_dir,
	require => Package['httpd'],
	}
	file { $confd_dir:
	ensure => directory,
	recurse => true,
	purge => $purge_configs,
	notify => Class['Apache::Service'],
	require => Package['httpd'],
	}

	if ! defined(File[$mod_dir]) {
	exec { "mkdir ${mod_dir}":
	creates => $mod_dir,
	require => Package['httpd'],
	}
	# Don't purge available modules if an enable dir is used
	$purge_mod_dir = $purge_configs and !$mod_enable_dir
	file { $mod_dir:
	ensure => directory,
	recurse => true,
	purge => $purge_mod_dir,
	notify => Class['Apache::Service'],
	require => Package['httpd'],
	}
	}

	if $mod_enable_dir and ! defined(File[$mod_enable_dir]) {
	$mod_load_dir = $mod_enable_dir
	exec { "mkdir ${mod_enable_dir}":
	creates => $mod_enable_dir,
	require => Package['httpd'],
	}
	file { $mod_enable_dir:
	ensure => directory,
	recurse => true,
	purge => $purge_configs,
	notify => Class['Apache::Service'],
	require => Package['httpd'],
	}
	} else {
	$mod_load_dir = $mod_dir
	}

	if ! defined(File[$vhost_dir]) {
	exec { "mkdir ${vhost_dir}":
	creates => $vhost_dir,
	require => Package['httpd'],
	}
	file { $vhost_dir:
	ensure => directory,
	recurse => true,
	purge => $_purge_vhost_dir,
	notify => Class['Apache::Service'],
	require => Package['httpd'],
	}
	}

	if $vhost_enable_dir and ! defined(File[$vhost_enable_dir]) {
	$vhost_load_dir = $vhost_enable_dir
	exec { "mkdir ${vhost_load_dir}":
	creates => $vhost_load_dir,
	require => Package['httpd'],
	}
	file { $vhost_enable_dir:
	ensure => directory,
	recurse => true,
	purge => $_purge_vhost_dir,
	notify => Class['Apache::Service'],
	require => Package['httpd'],
	}
	} else {
	$vhost_load_dir = $vhost_dir
	}

	concat { $ports_file:
	owner => 'root',
	group => $::apache::params::root_group,
	mode => '0644',
	notify => Class['Apache::Service'],
	require => Package['httpd'],
	}
	concat::fragment { 'Apache ports header':
	ensure => present,
	target => $ports_file,
	content => template('apache/ports_header.erb')
	}

	if $::apache::params::conf_dir and $::apache::params::conf_file {
	case $::osfamily {
	'debian': {
	$docroot = '/var/www'
	$pidfile = '${APACHE_PID_FILE}'
	$error_log = 'error.log'
	$error_documents_path = '/usr/share/apache2/error'
	$scriptalias = '/usr/lib/cgi-bin'
	$access_log_file = 'access.log'
	}
	'redhat': {
	$docroot = '/var/www/html'
	$pidfile = 'run/httpd.pid'
	$error_log = 'error_log'
	$error_documents_path = '/var/www/error'
	$scriptalias = '/var/www/cgi-bin'
	$access_log_file = 'access_log'
	}
	'freebsd': {
	$docroot = '/usr/local/www/apache22/data'
	$pidfile = '/var/run/httpd.pid'
	$error_log = 'httpd-error.log'
	$error_documents_path = '/usr/local/www/apache22/error'
	$scriptalias = '/usr/local/www/apache22/cgi-bin'
	$access_log_file = 'httpd-access.log'
	}
	default: {
	fail("Unsupported osfamily ${::osfamily}")
	}
	}

	$apxs_workaround = $::osfamily ? {
	'freebsd' => true,
	default => false
	}

	# Template uses:
	# - $pidfile
	# - $user
	# - $group
	# - $logroot
	# - $error_log
	# - $sendfile
	# - $mod_dir
	# - $ports_file
	# - $confd_dir
	# - $vhost_dir
	# - $error_documents
	# - $error_documents_path
	# - $apxs_workaround
	# - $keepalive
	# - $keepalive_timeout
	# - $max_keepalive_requests
	# - $server_root
	# - $server_tokens
	# - $server_signature
	# - $trace_enable
	file { "${::apache::params::conf_dir}/${::apache::params::conf_file}":
	ensure => file,
	content => template($conf_template),
	notify => Class['Apache::Service'],
	require => Package['httpd'],
	}

	# preserve back-wards compatibility to the times when default_mods was
	# only a boolean value. Now it can be an array (too)
	if is_array($default_mods) {
	class { '::apache::default_mods':
	all => false,
	mods => $default_mods,
	}
	} else {
	class { '::apache::default_mods':
	all => $default_mods,
	}
	}
	class { '::apache::default_confd_files':
	all => $default_confd_files
	}
	if $mpm_module {
	class { "::apache::mod::${mpm_module}": }
	}

	$default_vhost_ensure = $default_vhost ? {
	true => 'present',
	false => 'absent'
	}
	$default_ssl_vhost_ensure = $default_ssl_vhost ? {
	true => 'present',
	false => 'absent'
	}

	::apache::vhost { 'default':
	ensure => $default_vhost_ensure,
	port => 80,
	docroot => $docroot,
	scriptalias => $scriptalias,
	serveradmin => $serveradmin,
	access_log_file => $access_log_file,
	priority => '15',
	ip => $ip,
	}
	$ssl_access_log_file = $::osfamily ? {
	'freebsd' => $access_log_file,
	default => "ssl_${access_log_file}",
	}
	::apache::vhost { 'default-ssl':
	ensure => $default_ssl_vhost_ensure,
	port => 443,
	ssl => true,
	docroot => $docroot,
	scriptalias => $scriptalias,
	serveradmin => $serveradmin,
	access_log_file => $ssl_access_log_file,
	priority => '15',
	ip => $ip,
	}
	}
	}

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