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/*
* Copyright © 2017 Endless Mobile, Inc.
*
* SPDX-License-Identifier: LGPL-2.0+
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Authors:
* - Philip Withnall <withnall@endlessm.com>
*/
#include "config.h"
#include <gio/gio.h>
#include <glib.h>
#include <glib-object.h>
#include <locale.h>
#include <string.h>
#include "ostree-autocleanups.h"
#include "ostree-repo-finder.h"
#include "ostree-repo-finder-avahi.h"
#include "ostree-repo-finder-avahi-private.h"
/* FIXME: Upstream this */
G_DEFINE_AUTOPTR_CLEANUP_FUNC (AvahiStringList, avahi_string_list_free)
/* Test the object constructor works at a basic level. */
static void
test_repo_finder_avahi_init (void)
{
g_autoptr(OstreeRepoFinderAvahi) finder = NULL;
g_autoptr(GMainContext) context = NULL;
/* Default main context. */
finder = ostree_repo_finder_avahi_new (NULL);
g_clear_object (&finder);
/* Explicit main context. */
context = g_main_context_new ();
finder = ostree_repo_finder_avahi_new (context);
g_clear_object (&finder);
}
/* Test parsing valid and invalid TXT records. */
static void
test_repo_finder_avahi_txt_records_parse (void)
{
struct
{
const guint8 *txt;
gsize txt_len;
const gchar *expected_key; /* (nullable) to indicate parse failure */
const guint8 *expected_value; /* (nullable) to allow for valueless keys */
gsize expected_value_len;
}
vectors[] =
{
{ (const guint8 *) "", 0, NULL, NULL, 0 },
{ (const guint8 *) "\x00", 1, NULL, NULL, 0 },
{ (const guint8 *) "\xff", 1, NULL, NULL, 0 },
{ (const guint8 *) "k\x00", 2, NULL, NULL, 0 },
{ (const guint8 *) "k\xff", 2, NULL, NULL, 0 },
{ (const guint8 *) "=", 1, NULL, NULL, 0 },
{ (const guint8 *) "=value", 6, NULL, NULL, 0 },
{ (const guint8 *) "k=v", 3, "k", (const guint8 *) "v", 1 },
{ (const guint8 *) "key=value", 9, "key", (const guint8 *) "value", 5 },
{ (const guint8 *) "k=v=", 4, "k", (const guint8 *) "v=", 2 },
{ (const guint8 *) "k=", 2, "k", (const guint8 *) "", 0 },
{ (const guint8 *) "k", 1, "k", NULL, 0 },
{ (const guint8 *) "k==", 3, "k", (const guint8 *) "=", 1 },
{ (const guint8 *) "k=\x00\x01\x02", 5, "k", (const guint8 *) "\x00\x01\x02", 3 },
};
gsize i;
for (i = 0; i < G_N_ELEMENTS (vectors); i++)
{
g_autoptr(AvahiStringList) string_list = NULL;
g_autoptr(GHashTable) attributes = NULL;
g_test_message ("Vector %" G_GSIZE_FORMAT, i);
string_list = avahi_string_list_add_arbitrary (NULL, vectors[i].txt, vectors[i].txt_len);
attributes = _ostree_txt_records_parse (string_list);
if (vectors[i].expected_key != NULL)
{
GBytes *value;
g_autoptr(GBytes) expected_value = NULL;
g_assert_true (g_hash_table_lookup_extended (attributes,
vectors[i].expected_key,
NULL,
(gpointer *) &value));
g_assert_cmpuint (g_hash_table_size (attributes), ==, 1);
if (vectors[i].expected_value != NULL)
{
g_assert_nonnull (value);
expected_value = g_bytes_new_static (vectors[i].expected_value, vectors[i].expected_value_len);
g_assert_true (g_bytes_equal (value, expected_value));
}
else
{
g_assert_null (value);
}
}
else
{
g_assert_cmpuint (g_hash_table_size (attributes), ==, 0);
}
}
}
/* Test that the first value for a set of duplicate records is returned.
* See RFC 6763, §6.4. */
static void
test_repo_finder_avahi_txt_records_duplicates (void)
{
g_autoptr(AvahiStringList) string_list = NULL;
g_autoptr(GHashTable) attributes = NULL;
GBytes *value;
g_autoptr(GBytes) expected_value = NULL;
/* Reverse the list before using it, as they are built in reverse order.
* (See the #AvahiStringList documentation.) */
string_list = avahi_string_list_new ("k=value1", "k=value2", "k=value3", NULL);
string_list = avahi_string_list_reverse (string_list);
attributes = _ostree_txt_records_parse (string_list);
g_assert_cmpuint (g_hash_table_size (attributes), ==, 1);
value = g_hash_table_lookup (attributes, "k");
g_assert_nonnull (value);
expected_value = g_bytes_new_static ("value1", strlen ("value1"));
g_assert_true (g_bytes_equal (value, expected_value));
}
/* Test that keys are parsed and looked up case insensitively.
* See RFC 6763, §6.4. */
static void
test_repo_finder_avahi_txt_records_case_sensitivity (void)
{
g_autoptr(AvahiStringList) string_list = NULL;
g_autoptr(GHashTable) attributes = NULL;
GBytes *value1, *value2;
g_autoptr(GBytes) expected_value1 = NULL, expected_value2 = NULL;
/* Reverse the list before using it, as they are built in reverse order.
* (See the #AvahiStringList documentation.) */
string_list = avahi_string_list_new ("k=value1",
"K=value2",
"KeY2=v",
NULL);
string_list = avahi_string_list_reverse (string_list);
attributes = _ostree_txt_records_parse (string_list);
g_assert_cmpuint (g_hash_table_size (attributes), ==, 2);
value1 = g_hash_table_lookup (attributes, "k");
g_assert_nonnull (value1);
expected_value1 = g_bytes_new_static ("value1", strlen ("value1"));
g_assert_true (g_bytes_equal (value1, expected_value1));
g_assert_null (g_hash_table_lookup (attributes, "K"));
value2 = g_hash_table_lookup (attributes, "key2");
g_assert_nonnull (value2);
expected_value2 = g_bytes_new_static ("v", 1);
g_assert_true (g_bytes_equal (value2, expected_value2));
g_assert_null (g_hash_table_lookup (attributes, "KeY2"));
}
/* Test that keys which have an empty value can be distinguished from those
* which have no value. See RFC 6763, §6.4. */
static void
test_repo_finder_avahi_txt_records_empty_and_missing (void)
{
g_autoptr(AvahiStringList) string_list = NULL;
g_autoptr(GHashTable) attributes = NULL;
GBytes *value1, *value2;
g_autoptr(GBytes) expected_value1 = NULL;
string_list = avahi_string_list_new ("empty=",
"missing",
NULL);
attributes = _ostree_txt_records_parse (string_list);
g_assert_cmpuint (g_hash_table_size (attributes), ==, 2);
value1 = g_hash_table_lookup (attributes, "empty");
g_assert_nonnull (value1);
expected_value1 = g_bytes_new_static ("", 0);
g_assert_true (g_bytes_equal (value1, expected_value1));
g_assert_true (g_hash_table_lookup_extended (attributes, "missing", NULL, (gpointer *) &value2));
g_assert_null (value2);
}
int main (int argc, char **argv)
{
setlocale (LC_ALL, "");
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/repo-finder-avahi/init", test_repo_finder_avahi_init);
g_test_add_func ("/repo-finder-avahi/txt-records/parse", test_repo_finder_avahi_txt_records_parse);
g_test_add_func ("/repo-finder-avahi/txt-records/duplicates", test_repo_finder_avahi_txt_records_duplicates);
g_test_add_func ("/repo-finder-avahi/txt-records/case-sensitivity", test_repo_finder_avahi_txt_records_case_sensitivity);
g_test_add_func ("/repo-finder-avahi/txt-records/empty-and-missing", test_repo_finder_avahi_txt_records_empty_and_missing);
/* FIXME: Add tests for service processing, probably by splitting the
* code in OstreeRepoFinderAvahi around found_services. */
return g_test_run();
}
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