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fprintd: Use GDBus codegen based implementation

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Fprintd is dependent on the deprecated dbus-glib, also this doesn't provide
various features we can take advantage of, like the ones for async
authentication mechanism.

So, remove all the dbus-glib dependencies and simplify the code, but without
any further refactor, and keeping everything as it used to work, while this
will give room for further improvements in subsequent commits.

Internally, we just use dbus-codegen to generate the skeletons, and we
use the generated FprintdDBusManager with composition, while we
implement the device skeleton interface in FprintDevice, so that we
don't have to use it as a proxy, and keep being closer to what it used
to be with dbus-glib.

Fixes: #61
This commit is contained in:
Marco Trevisan (Treviño)
2020-02-03 20:29:56 +01:00
committed by Benjamin Berg
parent e224913b80
commit 93bad82540
15 changed files with 750 additions and 588 deletions
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94
utils/list.c
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@ -1,6 +1,7 @@
/*
* fprintd example to list enrolled fingerprints
* Copyright (C) 2008 Daniel Drake <dsd@gentoo.org>
* Copyright (C) 2020 Marco Trevisan <marco.trevisan@canonical.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -20,38 +21,52 @@
#include <stdio.h>
#include <stdlib.h>
#include <locale.h>
#include <dbus/dbus-glib-bindings.h>
#include "manager-dbus-glue.h"
#include "device-dbus-glue.h"
#include "fprintd-dbus.h"
static DBusGProxy *manager = NULL;
static DBusGConnection *connection = NULL;
static FprintDBusManager *manager = NULL;
static GDBusConnection *connection = NULL;
static void create_manager(void)
{
GError *error = NULL;
connection = dbus_g_bus_get(DBUS_BUS_SYSTEM, &error);
connection = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error);
if (connection == NULL) {
g_print("Failed to connect to session bus: %s\n", error->message);
exit (1);
}
manager = dbus_g_proxy_new_for_name(connection,
"net.reactivated.Fprint", "/net/reactivated/Fprint/Manager",
"net.reactivated.Fprint.Manager");
manager = fprint_dbus_manager_proxy_new_sync (connection,
G_DBUS_PROXY_FLAGS_NONE,
"net.reactivated.Fprint",
"/net/reactivated/Fprint/Manager",
NULL, &error);
if (manager == NULL) {
g_print ("Failed to get Fprintd manager: %s\n", error->message);
exit (1);
}
}
static void list_fingerprints(DBusGProxy *dev, const char *username)
static void list_fingerprints (FprintDBusDevice *dev, const char *username)
{
GError *error = NULL;
char **fingers;
GHashTable *props;
DBusGProxy *p;
guint i;
if (!net_reactivated_Fprint_Device_list_enrolled_fingers(dev, username, &fingers, &error)) {
if (dbus_g_error_has_name (error, "net.reactivated.Fprint.Error.NoEnrolledPrints") == FALSE) {
if (!fprint_dbus_device_call_list_enrolled_fingers_sync (dev, username,
&fingers, NULL,
&error)) {
gboolean ignore_error = FALSE;
if (g_dbus_error_is_remote_error (error)) {
g_autofree char *dbus_error =
g_dbus_error_get_remote_error (error);
if (g_str_equal (dbus_error,
"net.reactivated.Fprint.Error.NoEnrolledPrints")) {
ignore_error = TRUE;
}
}
if (!ignore_error) {
g_print("ListEnrolledFingers failed: %s\n", error->message);
exit (1);
} else {
@ -60,24 +75,16 @@ static void list_fingerprints(DBusGProxy *dev, const char *username)
}
}
p = dbus_g_proxy_new_from_proxy(dev, "org.freedesktop.DBus.Properties", NULL);
if (!dbus_g_proxy_call (p, "GetAll", &error, 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)) {
g_print("GetAll on the Properties interface failed: %s\n", error->message);
exit (1);
}
if (fingers == NULL || g_strv_length (fingers) == 0) {
g_print("User %s has no fingers enrolled for %s.\n", username, g_value_get_string (g_hash_table_lookup (props, "name")));
g_print ("User %s has no fingers enrolled for %s.\n", username,
fprint_dbus_device_get_name (dev));
return;
}
g_print("Fingerprints for user %s on %s (%s):\n",
username,
g_value_get_string (g_hash_table_lookup (props, "name")),
g_value_get_string (g_hash_table_lookup (props, "scan-type")));
g_hash_table_destroy (props);
g_object_unref (p);
fprint_dbus_device_get_name (dev),
fprint_dbus_device_get_scan_type (dev));
for (i = 0; fingers[i] != NULL; i++) {
g_print(" - #%d: %s\n", i, fingers[i]);
@ -88,46 +95,45 @@ static void list_fingerprints(DBusGProxy *dev, const char *username)
static void process_devices(char **argv)
{
g_auto(GStrv) devices = NULL;
GError *error = NULL;
GPtrArray *devices;
char *path;
guint num_devices;
guint i;
if (!net_reactivated_Fprint_Manager_get_devices(manager, &devices, &error)) {
if (!fprint_dbus_manager_call_get_devices_sync (manager, &devices, NULL,
&error)) {
g_print("Impossible to get devices: %s\n", error->message);
exit (1);
}
if (devices->len == 0) {
num_devices = g_strv_length (devices);
if (num_devices == 0) {
g_print("No devices available\n");
exit(1);
}
g_print("found %d devices\n", devices->len);
for (i = 0; i < devices->len; i++) {
path = g_ptr_array_index(devices, i);
g_print ("found %u devices\n", num_devices);
for (i = 0; devices[i] != NULL; i++) {
path = devices[i];
g_print("Device at %s\n", path);
}
for (i = 0; i < devices->len; i++) {
for (i = 0; devices[i] != NULL; i++) {
g_autoptr(FprintDBusDevice) dev = NULL;
guint j;
DBusGProxy *dev;
path = g_ptr_array_index(devices, i);
path = devices[i];
g_print("Using device %s\n", path);
/* FIXME use for_name_owner?? */
dev = dbus_g_proxy_new_for_name(connection, "net.reactivated.Fprint",
path, "net.reactivated.Fprint.Device");
dev = fprint_dbus_device_proxy_new_sync (connection,
G_DBUS_PROXY_FLAGS_NONE,
"net.reactivated.Fprint",
path, NULL, &error);
for (j = 1; argv[j] != NULL; j++)
list_fingerprints (dev, argv[j]);
g_object_unref (dev);
}
g_ptr_array_foreach(devices, (GFunc) g_free, NULL);
g_ptr_array_free(devices, TRUE);
}
int main(int argc, char **argv)