[PATCH] pam: don't use device name if there is only one reader

Dan Winship danw at gnome.org
Wed Nov 16 07:28:47 PST 2011


---
 pam/fingerprint-strings.h |   92 +++++++++++++++++++++++++++++++++++---------
 pam/pam_fprintd.c         |   43 ++++++++++++++-------
 2 files changed, 102 insertions(+), 33 deletions(-)

diff --git a/pam/fingerprint-strings.h b/pam/fingerprint-strings.h
index d1b919e..0069edf 100644
--- a/pam/fingerprint-strings.h
+++ b/pam/fingerprint-strings.h
@@ -22,23 +22,70 @@
 
 struct {
 	const char *dbus_name;
-	const char *place_str;
-	const char *swipe_str;
-} fingers[11] = {
-	{ "left-thumb", N_("Place your left thumb on %s"), N_("Swipe your left thumb on %s") },
-	{ "left-index-finger", N_("Place your left index finger on %s"), N_("Swipe your left index finger on %s") },
-	{ "left-middle-finger", N_("Place your left middle finger on %s"), N_("Swipe your left middle finger on %s") },
-	{ "left-ring-finger", N_("Place your left ring finger on %s"), N_("Swipe your left ring finger on %s") },
-	{ "left-little-finger", N_("Place your left little finger on %s"), N_("Swipe your left little finger on %s") },
-	{ "right-thumb", N_("Place your right thumb on %s"), N_("Swipe your right thumb on %s") },
-	{ "right-index-finger", N_("Place your right index finger on %s"), N_("Swipe your right index finger on %s") },
-	{ "right-middle-finger", N_("Place your right middle finger on %s"), N_("Swipe your right middle finger on %s") },
-	{ "right-ring-finger", N_("Place your right ring finger on %s"), N_("Swipe your right ring finger on %s") },
-	{ "right-little-finger", N_("Place your right little finger on %s"), N_("Swipe your right little finger on %s") },
-	{ NULL, NULL, NULL }
+	const char *place_str_generic;
+	const char *place_str_specific;
+	const char *swipe_str_generic;
+	const char *swipe_str_specific;
+} fingers[] = {
+	{ "any",
+	  N_("Place your finger on the fingerprint reader"),
+	  N_("Place your finger on %s"),
+	  N_("Swipe your finger across the fingerprint reader"),
+	  N_("Swipe your finger across %s") },
+	{ "left-thumb",
+	  N_("Place your left thumb on the fingerprint reader"),
+	  N_("Place your left thumb on %s"),
+	  N_("Swipe your left thumb across the fingerprint reader"),
+	  N_("Swipe your left thumb across %s") },
+	{ "left-index-finger",
+	  N_("Place your left index finger on the fingerprint reader"),
+	  N_("Place your left index finger on %s"),
+	  N_("Swipe your left index finger across the fingerprint reader"),
+	  N_("Swipe your left index finger across %s") },
+	{ "left-middle-finger",
+	  N_("Place your left middle finger on the fingerprint reader"),
+	  N_("Place your left middle finger on %s"),
+	  N_("Swipe your left middle finger across the fingerprint reader"),
+	  N_("Swipe your left middle finger across %s") },
+	{ "left-ring-finger",
+	  N_("Place your left ring finger on the fingerprint reader"),
+	  N_("Place your left ring finger on %s"),
+	  N_("Swipe your left ring finger across the fingerprint reader"),
+	  N_("Swipe your left ring finger across %s") },
+	{ "left-little-finger",
+	  N_("Place your left little finger on the fingerprint reader"),
+	  N_("Place your left little finger on %s"),
+	  N_("Swipe your left little finger across the fingerprint reader"),
+	  N_("Swipe your left little finger across %s") },
+	{ "right-thumb",
+	  N_("Place your right thumb on the fingerprint reader"),
+	  N_("Place your right thumb on %s"),
+	  N_("Swipe your right thumb across the fingerprint reader"),
+	  N_("Swipe your right thumb across %s") },
+	{ "right-index-finger",
+	  N_("Place your right index finger on the fingerprint reader"),
+	  N_("Place your right index finger on %s"),
+	  N_("Swipe your right index finger across the fingerprint reader"),
+	  N_("Swipe your right index finger across %s") },
+	{ "right-middle-finger",
+	  N_("Place your right middle finger on the fingerprint reader"),
+	  N_("Place your right middle finger on %s"),
+	  N_("Swipe your right middle finger across the fingerprint reader"),
+	  N_("Swipe your right middle finger across %s") },
+	{ "right-ring-finger",
+	  N_("Place your right ring finger on the fingerprint reader"),
+	  N_("Place your right ring finger on %s"),
+	  N_("Swipe your right ring finger across the fingerprint reader"),
+	  N_("Swipe your right ring finger across %s") },
+	{ "right-little-finger",
+	  N_("Place your right little finger on the fingerprint reader"),
+	  N_("Place your right little finger on %s"),
+	  N_("Swipe your right little finger across the fingerprint reader"),
+	  N_("Swipe your right little finger across %s") },
+	{ NULL, NULL, NULL, NULL, NULL }
 };
 
-static const char *finger_str_to_msg(const char *finger_name, gboolean is_swipe)
+static char *finger_str_to_msg(const char *finger_name, const char *driver_name, gboolean is_swipe)
 {
 	int i;
 
@@ -47,10 +94,17 @@ static const char *finger_str_to_msg(const char *finger_name, gboolean is_swipe)
 
 	for (i = 0; fingers[i].dbus_name != NULL; i++) {
 		if (g_str_equal (fingers[i].dbus_name, finger_name)) {
-			if (is_swipe == FALSE)
-				return fingers[i].place_str;
-			else
-				return fingers[i].swipe_str;
+			if (is_swipe == FALSE) {
+				if (driver_name)
+					return g_strdup_printf (TR (fingers[i].place_str_specific), driver_name);
+				else
+					return g_strdup (TR (fingers[i].place_str_generic));
+			} else {
+				if (driver_name)
+					return g_strdup_printf (TR (fingers[i].swipe_str_specific), driver_name);
+				else
+					return g_strdup (TR (fingers[i].swipe_str_generic));
+			}
 		}
 	}
 
diff --git a/pam/pam_fprintd.c b/pam/pam_fprintd.c
index 67b2de0..cba5fd9 100644
--- a/pam/pam_fprintd.c
+++ b/pam/pam_fprintd.c
@@ -164,6 +164,29 @@ static void close_and_unref (DBusGConnection *connection)
 	dbus_g_connection_unref (connection);
 }
 
+#define DBUS_TYPE_G_OBJECT_PATH_ARRAY (dbus_g_type_get_collection ("GPtrArray", DBUS_TYPE_G_OBJECT_PATH))
+
+static gboolean has_multiple_devices(pam_handle_t *pamh, DBusGProxy *manager)
+{
+	GError *error = NULL;
+	GPtrArray *paths;
+	gboolean has_multiple;
+
+	if (!dbus_g_proxy_call (manager, "GetDevices", &error,
+				G_TYPE_INVALID, DBUS_TYPE_G_OBJECT_PATH_ARRAY,
+				&paths, G_TYPE_INVALID)) {
+		D(pamh, "get_devices failed: %s", error->message);
+		g_error_free (error);
+		return FALSE;
+	}
+
+	has_multiple = (paths->len > 1);
+	g_strfreev ((char **)paths->pdata);
+	g_ptr_array_free (paths, TRUE);
+
+	return has_multiple;
+}
+
 static DBusGProxy *open_device(pam_handle_t *pamh, DBusGConnection *connection, DBusGProxy *manager, const char *username)
 {
 	GError *error = NULL;
@@ -233,14 +256,8 @@ static void verify_finger_selected(GObject *object, const char *finger_name, gpo
 	verify_data *data = user_data;
 	char *msg;
 
-	if (g_str_equal (finger_name, "any")) {
-		if (data->is_swipe == FALSE)
-			msg = g_strdup_printf ("Place your finger on %s", data->driver);
-		else
-			msg = g_strdup_printf ("Swipe your finger on %s", data->driver);
-	} else {
-		msg = g_strdup_printf (TR(finger_str_to_msg(finger_name, data->is_swipe)), data->driver);
-	}
+	msg = finger_str_to_msg(finger_name, data->driver, data->is_swipe);
+
 	D(data->pamh, "verify_finger_selected %s", msg);
 	send_info_msg (data->pamh, msg);
 	g_free (msg);
@@ -257,7 +274,7 @@ static gboolean verify_timeout_cb (gpointer user_data)
 	return FALSE;
 }
 
-static int do_verify(GMainLoop *loop, pam_handle_t *pamh, DBusGProxy *dev)
+static int do_verify(GMainLoop *loop, pam_handle_t *pamh, DBusGProxy *dev, gboolean has_multiple_devices)
 {
 	GError *error = NULL;
 	GHashTable *props;
@@ -276,7 +293,8 @@ static int do_verify(GMainLoop *loop, pam_handle_t *pamh, DBusGProxy *dev)
 	if (dbus_g_proxy_call (p, "GetAll", NULL, G_TYPE_STRING, "net.reactivated.Fprint.Device", G_TYPE_INVALID,
 			       dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, G_TYPE_VALUE), &props, G_TYPE_INVALID)) {
 		const char *scan_type;
-		data->driver = g_value_dup_string (g_hash_table_lookup (props, "name"));
+		if (has_multiple_devices)
+			data->driver = g_value_dup_string (g_hash_table_lookup (props, "name"));
 		scan_type = g_value_dup_string (g_hash_table_lookup (props, "scan-type"));
 		if (g_str_equal (scan_type, "swipe"))
 			data->is_swipe = TRUE;
@@ -285,9 +303,6 @@ static int do_verify(GMainLoop *loop, pam_handle_t *pamh, DBusGProxy *dev)
 
 	g_object_unref (p);
 
-	if (!data->driver)
-		data->driver = g_strdup ("Fingerprint reader");
-
 	dbus_g_proxy_add_signal(dev, "VerifyStatus", G_TYPE_STRING, G_TYPE_BOOLEAN, NULL);
 	dbus_g_proxy_add_signal(dev, "VerifyFingerSelected", G_TYPE_STRING, NULL);
 	dbus_g_proxy_connect_signal(dev, "VerifyStatus", G_CALLBACK(verify_result),
@@ -388,7 +403,7 @@ static int do_auth(pam_handle_t *pamh, const char *username)
 		close_and_unref (connection);
 		return PAM_AUTHINFO_UNAVAIL;
 	}
-	ret = do_verify(loop, pamh, dev);
+	ret = do_verify(loop, pamh, dev, has_multiple_devices(pamh, manager));
 
 	g_main_loop_unref (loop);
 	release_device(pamh, dev);
-- 
1.7.7.1


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