Add a fingerprint login test (GNOME only) (#223)

This adds a test for fingerprint-based login, as requested by
@benzea in #223. We use the fprintd dummy device to let us
simulate scanning a fingerprint, and check various scenarios
recommended by @benzea.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

lib/utils.pm

@@ -62,41 +62,6 @@ sub get_release_number {
     return $version
 }
 
-# Figure out what tty the desktop is on, switch to it. Assumes we're
-# at a root console
-sub desktop_vt {
-    # use loginctl or ps to find the tty of test's session (loginctl)
-    # or gnome-session, Xwayland or Xorg (ps); as of 2019-09 we often
-    # get tty? for Xwayland and Xorg processes, so using loginctl can
-    # help
-    my $xout;
-    # don't fail test if we don't find any process, just guess tty1.
-    # os-autoinst calls the script with 'bash -e' which causes it to
-    # stop as soon as any command fails, so we use ||: to make the
-    # first grep return 0 even if it matches nothing
-    eval { $xout = script_output ' loginctl | grep test ||:; ps -e | egrep "(gnome-session|Xwayland|Xorg)" | grep -o tty[0-9]' };
-    my $tty = 1; # default
-    while ($xout =~ /tty(\d)/g) {
-        $tty = $1; # most recent match is probably best
-    }
-    send_key "ctrl-alt-f${tty}";
-    # work around https://gitlab.gnome.org/GNOME/gnome-software/issues/582
-    # if it happens. As of 2019-05, seeing something similar on KDE too
-    my $desktop = get_var('DESKTOP');
-    if (check_screen "auth_required", 10) {
-        record_soft_failure "spurious 'auth required' - https://gitlab.gnome.org/GNOME/gnome-software/issues/582";
-        assert_and_click "auth_required" if ($desktop eq 'kde');
-        # bit sloppy but correct for both...
-        type_very_safely "weakpassword\n";
-        # as of 2019-04 when we hit this bug it seems to ask for
-        # auth *twice*, so handle that
-        sleep 3;
-        if (check_screen "auth_required", 1) {
-            type_very_safely "weakpassword\n";
-        }
-    }
-}
-
 # Wait for login screen to appear. Handle the annoying GPU buffer
 # problem where we see a stale copy of the login screen from the
 # previous boot. Will suffer a ~30 second delay if there's a chance
@@ -290,6 +255,53 @@ sub console_login {
     _console_login_finish();
 }
 
+# Figure out what tty the desktop is on, switch to it. Assumes we're
+# at a root console
+sub desktop_vt {
+    # use loginctl or ps to find the tty of test's session (loginctl)
+    # or gnome-session, Xwayland or Xorg (ps); as of 2019-09 we often
+    # get tty? for Xwayland and Xorg processes, so using loginctl can
+    # help
+    my $xout;
+    # don't fail test if we don't find any process, just guess tty1.
+    # os-autoinst calls the script with 'bash -e' which causes it to
+    # stop as soon as any command fails, so we use ||: to make the
+    # first grep return 0 even if it matches nothing
+    eval { $xout = script_output ' loginctl | grep test ||:; ps -e | egrep "(gnome-session|Xwayland|Xorg)" | grep -o tty[0-9]' };
+    my $tty = 1; # default
+    while ($xout =~ /tty(\d)/g) {
+        $tty = $1; # most recent match is probably best
+    }
+    send_key "ctrl-alt-f${tty}";
+    # work around https://gitlab.gnome.org/GNOME/gnome-software/issues/582
+    # if it happens. As of 2019-05, seeing something similar on KDE too
+    my $desktop = get_var('DESKTOP');
+    my $sfr = 0;
+    my $timeout = 10;
+    my $count = 6;
+    while (check_screen("auth_required", $timeout) && $count > 0) {
+        $count -= 1;
+        unless ($sfr) {
+            record_soft_failure "spurious 'auth required' - https://gitlab.gnome.org/GNOME/gnome-software/issues/582";
+            $sfr = 1;
+            $timeout = 3;
+        }
+        click_lastmatch if ($desktop eq 'kde');
+        if (match_has_tag "auth_required_fprint") {
+            my $user = get_var("USER_LOGIN", "test");
+            send_key "ctrl-alt-f6";
+            console_login;
+            assert_script_run "echo SCAN ${user}-finger-1 | socat STDIN UNIX-CONNECT:/run/fprintd-virt";
+            send_key "ctrl-alt-f${tty}";
+        }
+        else {
+            # bit sloppy but in all cases where this is used, this is the
+            # correct password
+            type_very_safely "weakpassword\n";
+        }
+    }
+}
+
 # load US layout (from a root console)
 sub console_loadkeys_us {
     if (get_var('LANGUAGE') eq 'french') {

needles/gnome/auth_required-20190212.json

@@ -1,16 +0,0 @@
-{
-  "area": [
-    {
-      "ypos": 251,
-      "type": "match",
-      "width": 46,
-      "xpos": 299,
-      "height": 32
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "DESKTOP-gnome",
-    "auth_required"
-  ]
-}

needles/gnome/auth_required-20190625.json

@@ -1,16 +0,0 @@
-{
-  "area": [
-    {
-      "xpos": 299,
-      "height": 32,
-      "ypos": 259,
-      "width": 46,
-      "type": "match"
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "DESKTOP-gnome",
-    "auth_required"
-  ]
-}

needles/gnome/auth_required-20200219.json

@@ -1,16 +1,24 @@
 {
     "area": [
         {
-      "xpos": 372,
-      "ypos": 232,
-      "type": "match",
             "height": 22,
-      "width": 171
+            "type": "match",
+            "width": 171,
+            "xpos": 372,
+            "ypos": 232
+        },
+        {
+            "height": 20,
+            "type": "match",
+            "width": 60,
+            "xpos": 375,
+            "ypos": 450
         }
     ],
     "properties": [],
     "tags": [
         "DESKTOP-gnome",
-    "auth_required"
+        "auth_required",
+        "auth_required_password"
     ]
 }

needles/gnome/auth_required_fprint-20210727.json

@@ -0,0 +1,24 @@
+{
+  "area": [
+    {
+      "xpos": 598,
+      "ypos": 469,
+      "width": 66,
+      "height": 11,
+      "type": "match"
+    },
+    {
+      "xpos": 373,
+      "ypos": 236,
+      "width": 170,
+      "height": 24,
+      "type": "match"
+    }
+  ],
+  "properties": [],
+  "tags": [
+    "DESKTOP-gnome",
+    "auth_required_fprint",
+    "auth_required"
+  ]
+}

needles/gnome/login_gdm_fprint-20210727.json

@@ -0,0 +1,16 @@
+{
+  "area": [
+    {
+      "xpos": 475,
+      "ypos": 497,
+      "width": 38,
+      "height": 15,
+      "type": "match"
+    }
+  ],
+  "properties": [],
+  "tags": [
+    "DESKTOP-gnome",
+    "graphical_login_fprint"
+  ]
+}

needles/kde/apps/auth_required.json

@@ -1,7 +1,8 @@
 {
   "properties": [],
   "tags": [
-    "auth_required"
+    "auth_required",
+    "auth_required_password"
   ],
   "area": [
     {

needles/kde/auth_required-kde-20190530.json

@@ -1,23 +0,0 @@
-{
-  "area": [
-    {
-      "xpos": 257,
-      "ypos": 211,
-      "width": 64,
-      "height": 55,
-      "type": "match"
-    },
-    {
-      "xpos": 397,
-      "ypos": 382,
-      "width": 35,
-      "height": 20,
-      "type": "match"
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "DESKTOP-kde",
-    "auth_required"
-  ]
-}

templates.fif.json

@@ -882,6 +882,18 @@
                 "START_AFTER_TEST": "%DEPLOY_UPLOAD_TEST%"
             }
         },
+        "desktop_fprint": {
+            "profiles": {
+                "fedora-Workstation-live-iso-x86_64-*-64bit": 50,
+                "fedora-Workstation-live-iso-ppc64le-*-ppc64le": 50
+            },
+            "settings": {
+                "BOOTFROM": "c",
+                "HDD_1": "disk_%FLAVOR%_%MACHINE%.qcow2",
+                "POSTINSTALL": "desktop_fprint",
+                "START_AFTER_TEST": "%DEPLOY_UPLOAD_TEST%"
+            }
+        },
         "desktop_browser": {
             "profiles": {
                 "fedora-KDE-live-iso-x86_64-*-64bit": 22,

tests/desktop_fprint.pm

@@ -0,0 +1,83 @@
+use base "installedtest";
+use strict;
+use testapi;
+use utils;
+
+sub run {
+    # at this point we have already reached @benzea's step 1:
+    # "Login without a (fingerprint) reader"
+    my $self = shift;
+    my $user = get_var("USER_LOGIN", "test");
+    $self->root_console(tty=>6);
+    script_run 'dnf -y install socat', 180;
+    assert_script_run 'mkdir -p /etc/systemd/system/fprintd.service.d';
+    # configure fprintd dummy reader, see
+    # https://pagure.io/fedora-qa/os-autoinst-distri-fedora/issue/223#comment-732426
+    assert_script_run 'printf \'[Service]\nEnvironment=G_MESSAGES_DEBUG=all\nEnvironment=FP_VIRTUAL_DEVICE=%%t/fprintd-virt\nReadWritePaths=%%t\nDeviceAllow=\' > /etc/systemd/system/fprintd.service.d/dummy.conf';
+    # dummy reader needs SELinux permissive
+    assert_script_run 'printf "SELINUX=permissive\nSELINUXTYPE=targeted" > /etc/selinux/config';
+    # now we reboot and go onto step 2:
+    # "Login with a reader, but no enrolled prints"
+    type_string "reboot\n";
+    assert_screen "graphical_login", 180;
+    mouse_hide;
+    send_key_until_needlematch("graphical_login_input", "ret", 3, 5);
+    type_very_safely "weakpassword";
+    send_key "ret";
+    check_desktop(timeout=>60);
+    wait_still_screen 10;
+    $self->root_console(tty=>5);
+    # now we enroll a fingerprint, we run the enrol process on tty5...
+    type_string "fprintd-enroll $user\n";
+    sleep 2;
+    $self->root_console(tty=>6);
+    # ...and do the scans (we need exactly 5) on tty4.
+    for my $n (1..5) {
+        assert_script_run "echo SCAN $user-finger-1 | socat STDIN UNIX-CONNECT:/run/fprintd-virt";
+    }
+    # now we will reboot and do step 3:
+    # "Login using fingerprint"
+    type_string "reboot\n";
+    assert_screen "graphical_login", 180;
+    $self->root_console(tty=>6);
+    # the GDM tty needs to be active when the scan happens, so we will
+    # schedule the scan to happen in 20 seconds then go deal with gdm
+    type_string "sleep 20; echo SCAN $user-finger-1 | socat STDIN UNIX-CONNECT:/run/fprintd-virt\n";
+    send_key "ctrl-alt-f1";
+    mouse_hide;
+    send_key_until_needlematch("graphical_login_input", "ret", 3, 5);
+    # now we check that we see the "or scan fingerprint" message, then
+    # just wait for the scan to happen and login to succeed
+    assert_screen "graphical_login_fprint";
+    check_desktop(timeout=>60);
+    $self->root_console(tty=>6);
+    # now we will reboot again and do step 4:
+    # "Password login after failed fingerprint login"
+    type_string "reboot\n";
+    assert_screen "graphical_login", 180;
+    $self->root_console(tty=>6);
+    # we're doing the same as before, but scanning the 'wrong thing'
+    # (note finger-2 not finger-1)
+    type_string "sleep 20; echo SCAN $user-finger-2 | socat STDIN UNIX-CONNECT:/run/fprintd-virt\n";
+    send_key "ctrl-alt-f1";
+    mouse_hide;
+    send_key_until_needlematch("graphical_login_input", "ret", 3, 5);
+    assert_screen "graphical_login_fprint";
+    # unfortunately we cannot assert the 'scan failed' message as it
+    # does not appear for long enough, so we just have to sleep
+    # another 20 seconds to be sure the scan has happened...
+    sleep 20;
+    # ...and check we're still at the login prompt, then type password
+    assert_screen "graphical_login_input";
+    type_very_safely "weakpassword";
+    send_key "ret";
+    check_desktop(timeout=>60);
+}
+
+sub test_flags {
+    return { fatal => 1 };
+}
+
+1;
+
+# vim: set sw=4 et: