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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021 Simon South <simon@simonsouth.net>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix 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 GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

;;;
;;; The Transmission Daemon service.
;;;

(define-module (gnu tests file-sharing)
  #:use-module (gnu packages bittorrent)
  #:use-module (gnu services)
  #:use-module (gnu services file-sharing)
  #:use-module (gnu services networking)
  #:use-module (gnu system vm)
  #:use-module (gnu tests)
  #:use-module (guix gexp)
  #:export (%test-transmission-daemon))

(define %transmission-daemon-user "transmission")
(define %transmission-daemon-group "transmission")

(define %transmission-daemon-config-dir "/var/lib/transmission-daemon")
(define %transmission-daemon-watch-dir
  (string-append %transmission-daemon-config-dir "/watch"))
(define %transmission-daemon-incomplete-dir
  (string-append %transmission-daemon-config-dir "/incomplete"))

(define %transmission-daemon-settings-file
  (string-append %transmission-daemon-config-dir "/settings.json"))

(define %transmission-daemon-peer-port 51000) ; default is 51413

(define %transmission-daemon-rpc-port 9999)   ; default is 9091
(define %transmission-daemon-rpc-username "test-username")
(define %transmission-daemon-rpc-password "test-password")

(define %transmission-daemon-test-configuration
  (transmission-daemon-configuration
   (incomplete-dir-enabled? #t)
   (incomplete-dir %transmission-daemon-incomplete-dir)

   (watch-dir-enabled? #t)
   (watch-dir %transmission-daemon-watch-dir)

   (peer-port-random-on-start? #f)
   (peer-port %transmission-daemon-peer-port)

   (rpc-enabled? #t)
   (rpc-port %transmission-daemon-rpc-port)
   (rpc-whitelist-enabled? #f)
   (rpc-authentication-required? #t)
   (rpc-username %transmission-daemon-rpc-username)
   (rpc-password (transmission-password-hash %transmission-daemon-rpc-password
                                             "yEK0q3.X"))))

(define (run-transmission-daemon-test)
  (define os
    (marionette-operating-system
     (simple-operating-system
      (service dhcp-client-service-type)
      (service transmission-daemon-service-type
               %transmission-daemon-test-configuration))
     #:imported-modules '((gnu services herd)
                          (json parser))
     #:requirements '(transmission-daemon)))

  (define test
    (with-imported-modules '((gnu build marionette))
      #~(begin
          (use-modules (gnu build marionette)
                       (srfi srfi-64))

          (define marionette
            (make-marionette
             (list #$(virtual-machine
                      (operating-system os)
                      (port-forwardings
                       `((9091 . ,%transmission-daemon-rpc-port)))))))

          (test-runner-current (system-test-runner #$output))
          (test-begin "transmission-daemon")

          ;; Make sure the "transmission" user and group have been created.
          (test-assert "\"transmission\" user exists"
            (marionette-eval
             '(begin
                (getpwnam #$%transmission-daemon-user)
                #t)
             marionette))
          (test-assert "\"transmission\" group exists"
            (marionette-eval
             '(begin
                (getgrnam #$%transmission-daemon-group)
                #t)
             marionette))

          ;; Make sure Transmission Daemon's configuration directory has been
          ;; created with the correct ownership and permissions.
          (test-assert "configuration directory exists"
            (marionette-eval
             '(eq? (stat:type (stat #$%transmission-daemon-config-dir))
                   'directory)
             marionette))
          (test-assert "configuration directory has correct ownership"
            (marionette-eval
             '(let ((config-dir (stat #$%transmission-daemon-config-dir))
                    (transmission-user (getpwnam #$%transmission-daemon-user)))
                (and (eqv? (stat:uid config-dir)
                           (passwd:uid transmission-user))
                     (eqv? (stat:gid config-dir)
                           (passwd:gid transmission-user))))
             marionette))
          (test-assert "configuration directory has expected permissions"
            (marionette-eval
             '(eqv? (stat:perms (stat #$%transmission-daemon-config-dir))
                    #o750)
             marionette))

          ;; Make sure the incomplete-downloads and watch directories have been
          ;; created with the correct ownership and permissions.
          (test-assert "incomplete-downloads directory exists"
            (marionette-eval
             '(eq? (stat:type (stat #$%transmission-daemon-incomplete-dir))
                   'directory)
             marionette))
          (test-assert "incomplete-downloads directory has correct ownership"
            (marionette-eval
             '(let ((incomplete-dir
                     (stat #$%transmission-daemon-incomplete-dir))
                    (transmission-user
                     (getpwnam #$%transmission-daemon-user)))
                (and (eqv? (stat:uid incomplete-dir)
                           (passwd:uid transmission-user))
                     (eqv? (stat:gid incomplete-dir)
                           (passwd:gid transmission-user))))
             marionette))
          (test-assert
              "incomplete-downloads directory has expected permissions"
            (marionette-eval
             '(eqv? (stat:perms (stat #$%transmission-daemon-incomplete-dir))
                    #o750)
             marionette))

          (test-assert "watch directory exists"
            (marionette-eval
             '(eq? (stat:type (stat #$%transmission-daemon-watch-dir))
                   'directory)
             marionette))
          (test-assert "watch directory has correct ownership"
            (marionette-eval
             '(let ((watch-dir (stat #$%transmission-daemon-watch-dir))
                    (transmission-user (getpwnam #$%transmission-daemon-user)))
                (and (eqv? (stat:uid watch-dir)
                           (passwd:uid transmission-user))
                     (eqv? (stat:gid watch-dir)
                           (passwd:gid transmission-user))))
             marionette))
          (test-assert "watch directory has expected permissions"
            (marionette-eval
             '(eqv? (stat:perms (stat #$%transmission-daemon-watch-dir))
                    #o770)
             marionette))

          ;; Make sure the settings file has been created and appears valid.
          (test-assert "settings file exists"
            (marionette-eval
             '(file-exists? #$%transmission-daemon-settings-file)
             marionette))
          (test-assert "settings file is valid JSON"
            (marionette-eval
             '(begin
                (use-modules (json parser))
                (with-input-from-file #$%transmission-daemon-settings-file
                  (lambda ()
                    (json->scm)))
                #t)
             marionette))
          (test-assert "settings file contains a non-empty JSON object"
            (marionette-eval
             '(begin
                (use-modules (json parser)
                             (srfi srfi-1))
                (let ((settings (with-input-from-file
                                    #$%transmission-daemon-settings-file
                                  (lambda ()
                                    (json->scm)))))
                  (and (list? settings)
                       (not (null? settings))
                       (every pair? settings))))
             marionette))

          ;; Make sure Transmission Daemon is running.
          (test-assert "transmission-daemon is running"
            (marionette-eval
             '(begin
                (use-modules (gnu services herd))
                (live-service-running
                 (find (lambda (live-service)
                         (memq 'transmission-daemon
                               (live-service-provision live-service)))
                       (current-services))))
             marionette))

          ;; Make sure the daemon is listening for peer connections.
          (test-assert "transmission-daemon is listening for peers"
            (wait-for-tcp-port #$%transmission-daemon-peer-port marionette))

          ;; Make sure the daemon is listening for RPC-client connections.
          (test-assert "transmission-daemon is listening for RPC clients"
            (wait-for-tcp-port #$%transmission-daemon-rpc-port marionette))

          ;; Make sure the RPC-authentication settings are honored.
          (test-assert "transmission-daemon requires RPC authentication"
            (let ((transmission-remote
                   (string-append #+transmission "/bin/transmission-remote")))
              (with-error-to-port (%make-void-port "w")
                (lambda ()
                  (not (zero? (system* transmission-remote
                                       "--session-info")))))))
          (test-assert "transmission-daemon rejects incorrect RPC credentials"
            (let ((transmission-remote
                   (string-append #+transmission "/bin/transmission-remote"))
                  (wrong-auth-string
                   (string-append #$%transmission-daemon-rpc-username
                                  ":"
                                  "wrong-"
                                  #$%transmission-daemon-rpc-password)))
              (with-error-to-port (%make-void-port "w")
                (lambda ()
                  (not (zero? (system* transmission-remote
                                       "--auth" wrong-auth-string
                                       "--session-info")))))))
          (test-assert "transmission-daemon accepts correct RPC credentials"
            (let ((transmission-remote
                   (string-append #+transmission "/bin/transmission-remote"))
                  (auth-string
                   (string-append #$%transmission-daemon-rpc-username
                                  ":"
                                  #$%transmission-daemon-rpc-password)))
              (with-output-to-port (%make-void-port "w")
                (lambda ()
                  (zero? (system* transmission-remote
                                  "--auth" auth-string
                                  "--session-info"))))))

          (test-end))))

  (gexp->derivation "transmission-daemon-test" test))

(define %test-transmission-daemon
  (system-test
   (name "transmission-daemon")
   (description "Test a running Transmission Daemon service.")
   (value (run-transmission-daemon-test))))
((marionette (make-marionette (list #$vm)))) (test-runner-current (system-test-runner #$output)) (test-begin "xvnc") (test-assert "service running" (marionette-eval '(begin (use-modules (gnu services herd)) (start-service 'xvnc)) marionette)) (test-assert "wait for port 5905, IPv4" (wait-for-tcp-port 5905 marionette)) (test-assert "wait for port 5905, IPv6" (wait-for-tcp-port 5905 marionette #:address '(make-socket-address AF_INET6 (inet-pton AF_INET6 "::1") 5905))) (test-assert "gdm auto-suspend is disabled" ;; More a GDM than a Xvnc test, but since it's a cross-cutting ;; concern and we have everything set up here, we might as well ;; check it here. (marionette-eval '(begin (use-modules (guix build utils)) ;; Check that DCONF_PROFILE is set... (invoke "/bin/sh" "-lc" "\ pgrep gdm | head -n1 | xargs -I{} grep -Fq DCONF_PROFILE /proc/{}/environ") ;; ... and that 'sleep-inactive-ac-type' is unset. (invoke "/bin/sh" "-lc" "\ sudo -E -u gdm env DCONF_PROFILE=/etc/dconf/profile/gdm dbus-run-session \ gsettings get org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type \ | grep -Fq nothing")) marionette)) (test-group "vnc lands on the gdm login screen" ;; This test runs vncviewer on the local VM and verifies that it ;; manages to access the GDM login screen (via XDMCP). (define (ratpoison-abort) (marionette-control "sendkey ctrl-g" marionette)) (define (ratpoison-help) (marionette-control "sendkey ctrl-t" marionette) (marionette-type "?" marionette) (sleep 1)) ;wait for help screen to appear (define (ratpoison-exec command) (marionette-control "sendkey ctrl-t" marionette) (marionette-type "!" marionette) (marionette-type (string-append command "\n") marionette)) ;; Wait until the ratpoison help screen can be displayed; this ;; means the window manager is ready. ;; XXX: The letters are half of the height preferred by ;; GNU Ocrad, scale it by 2. (test-assert "window manager is ready" (wait-for-screen-text marionette (cut string-contains <> "key bindings") #:ocr #$ocr #:ocr-arguments '("--scale=2") #:pre-action ratpoison-help #:post-action ratpoison-abort)) ;; Run vncviewer and expect the GDM login screen (accessed via ;; XDMCP). This can take a while to appear on slower machines. (ratpoison-exec "vncviewer localhost:5905") (test-assert "GDM login screen ready" ;; XXX: The '--invert' argument as the sole option to GNU ;; Ocrad is required for it to recognize "Guix" from the ;; background image. 'Username' from the UI would be a better ;; choice but is not recognized at all. (wait-for-screen-text marionette (cut string-contains <> "Guix") #:ocr #$ocr #:ocr-arguments '("--invert") #:timeout 120))) ;for slow systems (test-end))))) (gexp->derivation "xvnc-test" test)) (define %test-xvnc (system-test (name "xvnc") (description "Basic tests for the Xvnc service. One of the tests validate that XDMCP works with GDM, and is therefore heavy in terms of disk and memory requirements.") (value (run-xvnc-test))))