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;;; Consfigurator -- Lisp declarative configuration management system
;;; Copyright (C) 2021 Sean Whitton <spwhitton@spwhitton.name>
;;; This file is free software; you can redistribute it and/or modify
;;; it under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3, or (at your option)
;;; any later version.
;;; This file is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;; You should have received a copy of the GNU General Public License
;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
(in-package :consfigurator.property.apache)
(named-readtables:in-readtable :consfigurator)
(defproplist installed :posix ()
(:desc "Apache installed")
(os:etypecase
(debianlike (apt:installed "apache2"))))
(defproplist reloaded :posix ()
(:desc "Apache reloaded")
(service:reloaded "apache2"))
(defprop %mod-enabled :posix (name)
(:hostattrs (os:required 'os:debianlike))
(:check (zerop (mrun :for-exit "a2query" "-q" "-m" name)))
(:apply (mrun "a2enmod" "--quiet" name))
(:unapply (mrun "a2dismod" "--quiet" name)))
(defproplist mod-enabled :posix (name)
(:desc #?"Apache module ${name} enabled")
(installed)
(on-change (%mod-enabled name)
(reloaded)))
(defproplist conf-available :posix (name config)
(:desc #?"Apache conf ${name} available")
(file:exists-with-content
(merge-pathnames (strcat name ".conf") #P"/etc/apache2/conf-available/")
config))
(defprop %conf-enabled :posix (name)
(:hostattrs (os:required 'os:debianlike))
(:check (zerop (mrun :for-exit "a2query" "-q" "-c" name)))
(:apply (mrun "a2enconf" "--quiet" name))
(:unapply (mrun "a2disconf" "--quiet" name)))
(defpropspec conf-enabled :posix (name &optional config)
(:desc #?"Apache configuration ${name} enabled")
`(eseqprops
(installed)
(on-change ,(if config
`(eseqprops (conf-available ,name ,config)
(%conf-enabled ,name))
`(%conf-enabled ,name))
(reloaded))))
(defproplist site-available :posix (domain config)
(:desc #?"Apache site ${domain} available")
(file:exists-with-content
(merge-pathnames (strcat domain ".conf") #P"/etc/apache2/sites-available/")
config))
(defprop %site-enabled :posix (domain)
(:hostattrs (os:required 'os:debianlike))
(:check (zerop (mrun :for-exit "a2query" "-q" "-s" domain)))
(:apply (mrun "a2ensite" "--quiet" domain))
(:unapply (mrun "a2dissite" "--quiet" domain)))
(defpropspec site-enabled :posix (domain &optional config)
(:desc #?"Apache site ${domain} enabled")
`(eseqprops
(installed)
(on-change ,(if config
`(eseqprops (site-available ,domain ,config)
(%site-enabled ,domain))
`(%site-enabled ,domain))
(reloaded))))
(defpropspec https-vhost :posix
(domain htdocs agree-tos
&key aliases additional-config additional-config-https)
"Configure an HTTPS Apache virtual host using a Let's Encrypt certificate.
ALIASES are the values for ServerAlias entries; these must be specified
separately for proper handling of the redirects from HTTP to HTTPS. Use of
this property implies agreement with the Let's Encrypt Subscriber Agreement;
AGREE-TOS is an instance of LETS-ENCRYPT:AGREE-TOS. ADDITIONAL-CONFIG are
additional lines to add to the Apache configuration for both the HTTP and
HTTPS virtual hosts; ADDITIONAL-CONFIG-HTTPS are additional lines to be added
only to the HTTPS virtual host.
Unapplying removes the Apache site config but leaves the certificate behind.
The current implementation does not install a certificate renewal hook to
restart Apache."
`(with-unapply
(network:aliases ,domain ,@aliases)
(mod-enabled "ssl")
(conf-enabled "stapling"
("SSLStaplingCache shmcb:/tmp/stapling_cache(128000)"))
(mod-enabled "rewrite")
(site-enabled
,domain
,(let ((initial `(,(strcat "DocumentRoot " htdocs)
"ErrorLog /var/log/apache2/error.log"
"LogLevel warn"
"CustomLog /var/log/apache2/access.log combined"
"ServerSignature on")))
`(,(strcat "<IfFile " (unix-namestring
(lets-encrypt:certificate-for domain))
">")
"<VirtualHost *:443>"
,(strcat "ServerName " domain ":443")
,@(loop for alias in aliases collect (strcat "ServerAlias " alias))
,@initial
"SSLEngine on"
,(strcat "SSLCertificateFile "
(unix-namestring (lets-encrypt:certificate-for domain)))
,(strcat "SSLCertificateKeyFile "
(unix-namestring (lets-encrypt:privkey-for domain)))
,(strcat "SSLCertificateChainFile "
(unix-namestring (lets-encrypt:chain-for domain)))
"SSLUseStapling on"
,@additional-config
,@additional-config-https
"</VirtualHost>" "</IfFile>"
,@(loop for name in (cons domain aliases) append
`(""
"<VirtualHost *:80>"
,(strcat "ServerName " name ":80")
,@initial
"RewriteEngine On"
"RewriteRule ^/.well-known/acme-challenge.* - [L]"
,@additional-config
;; redirect everything else to https
"RewriteRule (.*) https://%{SERVER_NAME}$1 [R=301,L,NE]"
"</VirtualHost>")))))
(on-change (lets-encrypt:certificate-obtained
,agree-tos ,htdocs ,domain ,@aliases)
(reloaded))
:unapply
(unapplied (site-enabled ,domain))
(unapplied (site-available ,domain ""))))
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