1 /* GLib testing framework examples and tests
2 *
3 * Copyright (C) 2013 Collabora, Ltd.
4 *
5 * This work is provided "as is"; redistribution and modification
6 * in whole or in part, in any medium, physical or electronic is
7 * permitted without restriction.
8 *
9 * This work is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 *
13 * In no event shall the authors or contributors be liable for any
14 * direct, indirect, incidental, special, exemplary, or consequential
15 * damages (including, but not limited to, procurement of substitute
16 * goods or services; loss of use, data, or profits; or business
17 * interruption) however caused and on any theory of liability, whether
18 * in contract, strict liability, or tort (including negligence or
19 * otherwise) arising in any way out of the use of this software, even
20 * if advised of the possibility of such damage.
21 *
22 * Author: Philip Withnall <philip.withnall@collabora.co.uk>
23 */
24
25 #define GIO_COMPILATION 1
26 #include "../thumbnail-verify.c"
27
28 static void
test_validity(void)29 test_validity (void)
30 {
31 struct
32 {
33 const gchar *filename; /* name of a file in the tests/thumbnails dir */
34 guint64 mtime; /* asserted mtime of @filename */
35 guint64 size; /* asserted size of @filename */
36 gboolean expected_validity; /* should thumbnail_verify() succeed? */
37 }
38 tests[] =
39 {
40 /*
41 * Tests with well-formed PNG files.
42 *
43 * Note that these files have all been brutally truncated to a reasonable
44 * size, so aren't actually valid PNG files. Their headers are valid,
45 * however, and that's all we care about.
46 */
47
48 /* Test that validation succeeds against a valid PNG file with URI,
49 * mtime and size which match the expected values. */
50 { "valid.png", 1382429848, 93654, TRUE },
51 /* Test that validation succeeds with URI and mtime, but no size in the
52 * tEXt data. */
53 { "valid-no-size.png", 1382429848, 93633, TRUE },
54 /* Test that a missing file fails validation. */
55 { "missing.png", 123456789, 12345, FALSE },
56 /* Test that an existing file with no tEXt data fails validation. */
57 { "no-text-data.png", 123 /* invalid */, 26378, FALSE },
58 /* Test that a URI mismatch fails validation. */
59 { "uri-mismatch.png" /* invalid */, 1382429848, 93654, FALSE },
60 /* Test that an mtime mismatch fails validation. */
61 { "valid.png", 123 /* invalid */, 93654, FALSE },
62 /* Test that a valid URI and mtime, but a mismatched size, fails
63 * validation. */
64 { "valid.png", 1382429848, 123 /* invalid */, FALSE },
65 /* Test that validation succeeds with an mtime of 0. */
66 { "mtime-zero.png", 0, 93621, TRUE },
67 /* Test that validation fails if the mtime is only a prefix match. */
68 { "valid.png", 9848 /* invalid */, 93654, FALSE },
69
70 /*
71 * Tests with PNG files which have malicious or badly-formed headers.
72 *
73 * As above, the files have all been truncated to reduce their size.
74 */
75
76 /* Check a corrupted PNG header fails validation. */
77 { "bad-header.png", 1382429848, 93654, FALSE },
78 /* Check a PNG header by itself fails. */
79 { "header-only.png", 1382429848, 8, FALSE },
80 /* Check a PNG header and initial chunk size fails. */
81 { "header-and-chunk-size.png", 1382429848, 20, FALSE },
82 /* Check a huge chunk size fails. */
83 { "huge-chunk-size.png", 1382429848, 93654, FALSE },
84 /* Check that an empty key fails. */
85 { "empty-key.png", 1382429848, 93654, FALSE },
86 /* Check that an over-long value fails (even if nul-terminated). */
87 { "overlong-value.png", 1382429848, 93660, FALSE },
88 };
89 guint i;
90
91 /* Run all the tests. */
92 for (i = 0; i < G_N_ELEMENTS (tests); i++)
93 {
94 GLocalFileStat stat_buf;
95 const gchar *thumbnail_path;
96 gchar *file_uri;
97 gboolean result;
98
99 thumbnail_path = g_test_get_filename (G_TEST_DIST, "thumbnails",
100 tests[i].filename, NULL);
101 file_uri = g_strconcat ("file:///tmp/", tests[i].filename, NULL);
102 #ifdef HAVE_STATX
103 stat_buf.stx_mtime.tv_sec = tests[i].mtime;
104 stat_buf.stx_size = tests[i].size;
105 #else
106 #ifdef G_OS_WIN32
107 stat_buf.st_mtim.tv_sec = tests[i].mtime;
108 #else
109 stat_buf.st_mtime = tests[i].mtime;
110 #endif
111 stat_buf.st_size = tests[i].size;
112 #endif
113
114 result = thumbnail_verify (thumbnail_path, file_uri, &stat_buf);
115
116 g_free (file_uri);
117
118 g_assert (result == tests[i].expected_validity);
119 }
120 }
121
122 int
main(int argc,char * argv[])123 main (int argc,
124 char *argv[])
125 {
126 g_test_init (&argc, &argv, NULL);
127
128 g_test_add_func ("/png-thumbs/validity", test_validity);
129
130 return g_test_run ();
131 }
132