From da6aec32cf13cf06cfda909c45f7f35625c4e3fa Mon Sep 17 00:00:00 2001 From: Oleg Pykhalov Date: Mon, 28 Sep 2020 23:52:51 +0300 Subject: gnu: Add webssh service. * gnu/services/ssh.scm: (): New record type. (%webssh-configuration-nginx, webssh-service-type): New variables. (webssh-account, webssh-activation, webssh-shepherd-service): New procedures. * doc/guix.texi: Document this. --- gnu/services/ssh.scm | 131 ++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 130 insertions(+), 1 deletion(-) (limited to 'gnu') diff --git a/gnu/services/ssh.scm b/gnu/services/ssh.scm index ced21c0742..1891db0487 100644 --- a/gnu/services/ssh.scm +++ b/gnu/services/ssh.scm @@ -5,6 +5,7 @@ ;;; Copyright © 2017 Clément Lassieur ;;; Copyright © 2019 Ricardo Wurmus ;;; Copyright © 2020 pinoaffe +;;; Copyright © 2020 Oleg Pykhalov ;;; ;;; This file is part of GNU Guix. ;;; @@ -26,6 +27,7 @@ (define-module (gnu services ssh) #:use-module (gnu packages admin) #:use-module (gnu services) #:use-module (gnu services shepherd) + #:use-module (gnu services web) #:use-module (gnu system pam) #:use-module (gnu system shadow) #:use-module (guix gexp) @@ -50,7 +52,12 @@ (define-module (gnu services ssh) autossh-configuration autossh-configuration? - autossh-service-type)) + autossh-service-type + + webssh-configuration + webssh-configuration? + webssh-service-type + %webssh-configuration-nginx)) ;;; Commentary: ;;; @@ -732,4 +739,126 @@ (define autossh-service-type autossh-service-activation))) (default-value (autossh-configuration)))) + +;;; +;;; WebSSH +;;; + +(define-record-type* + webssh-configuration make-webssh-configuration + webssh-configuration? + (package webssh-configuration-package ;package + (default webssh)) + (user-name webssh-configuration-user-name ;string + (default "webssh")) + (group-name webssh-configuration-group-name ;string + (default "webssh")) + (policy webssh-configuration-policy ;symbol + (default #f)) + (known-hosts webssh-configuration-known-hosts ;list of strings + (default #f)) + (port webssh-configuration-port ;number + (default #f)) + (address webssh-configuration-address ;string + (default #f)) + (log-file webssh-configuration-log-file ;string + (default "/var/log/webssh.log")) + (log-level webssh-configuration-log-level ;symbol + (default #f))) + +(define %webssh-configuration-nginx + (nginx-server-configuration + (listen '("80")) + (locations + (list (nginx-location-configuration + (uri "/") + (body '("proxy_pass http://127.0.0.1:8888;" + "proxy_http_version 1.1;" + "proxy_read_timeout 300;" + "proxy_set_header Upgrade $http_upgrade;" + "proxy_set_header Connection \"upgrade\";" + "proxy_set_header Host $http_host;" + "proxy_set_header X-Real-IP $remote_addr;" + "proxy_set_header X-Real-PORT $remote_port;"))))))) + +(define webssh-account + ;; Return the user accounts and user groups for CONFIG. + (match-lambda + (($ _ user-name group-name _ _ _ _ _ _) + (list (user-group + (name group-name)) + (user-account + (name user-name) + (group group-name) + (comment "webssh privilege separation user") + (home-directory (string-append "/var/run/" user-name)) + (shell #~(string-append #$shadow "/sbin/nologin"))))))) + +(define webssh-activation + ;; Return the activation GEXP for CONFIG. + (match-lambda + (($ _ user-name group-name policy known-hosts _ _ + log-file _) + (with-imported-modules '((guix build utils)) + #~(begin + (let* ((home-dir (string-append "/var/run/" #$user-name)) + (ssh-dir (string-append home-dir "/.ssh")) + (known-hosts-file (string-append ssh-dir "/known_hosts"))) + (call-with-output-file #$log-file (const #t)) + (mkdir-p ssh-dir) + (case '#$policy + ((reject) + (if '#$known-hosts + (call-with-output-file known-hosts-file + (lambda (port) + (for-each (lambda (host) (display host port) (newline port)) + '#$known-hosts))) + (display-hint (G_ "webssh: reject policy requires `known-hosts'."))))) + (for-each (lambda (file) + (chown file + (passwd:uid (getpw #$user-name)) + (group:gid (getpw #$group-name)))) + (list #$log-file ssh-dir known-hosts-file)) + (chmod ssh-dir #o700))))))) + +(define webssh-shepherd-service + (match-lambda + (($ package user-name group-name policy _ port + address log-file log-level) + (list (shepherd-service + (provision '(webssh)) + (documentation "Run webssh daemon.") + (start #~(make-forkexec-constructor + `(,(string-append #$webssh "/bin/wssh") + ,(string-append "--log-file-prefix=" #$log-file) + ,@(case '#$log-level + ((debug) '("--logging=debug")) + (else '())) + ,@(case '#$policy + ((reject) '("--policy=reject")) + (else '())) + ,@(if #$port + (list (string-append "--port=" (number->string #$port))) + '()) + ,@(if #$address + (list (string-append "--address=" #$address)) + '())) + #:user #$user-name + #:group #$group-name)) + (stop #~(make-kill-destructor))))))) + +(define webssh-service-type + (service-type + (name 'webssh) + (extensions + (list (service-extension shepherd-root-service-type + webssh-shepherd-service) + (service-extension account-service-type + webssh-account) + (service-extension activation-service-type + webssh-activation))) + (default-value (webssh-configuration)) + (description + "Run the webssh."))) + ;;; ssh.scm ends here -- cgit v1.2.3