1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
* vi:set noexpandtab tabstop=8 shiftwidth=8:
*
* Copyright (C) 2009-2016 Richard Hughes <richard@hughsie.com>
*
* Licensed under the GNU General Public License Version 2
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <locale.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <xmlb.h>
#include <glib/gi18n.h>
#include "gs-external-appstream-utils.h"
static gboolean
gs_install_appstream_copy_file (GFile *file, GError **error)
{
g_autofree gchar *basename = g_file_get_basename (file);
g_autofree gchar *cachefn = gs_external_appstream_utils_get_file_cache_path (basename);
g_autoptr(GFile) cachefn_file = g_file_new_for_path (cachefn);
g_autoptr(GFile) cachedir_file = g_file_get_parent (cachefn_file);
/* make sure the parent directory exists, but if not then create with
* the ownership and permissions of the current process */
if (!g_file_query_exists (cachedir_file, NULL)) {
if (!g_file_make_directory_with_parents (cachedir_file, NULL, error))
return FALSE;
}
/* do the copy, overwriting existing files and setting the permissions
* of the current process (so that should be -rw-r--r--) */
return g_file_copy (file, cachefn_file,
G_FILE_COPY_OVERWRITE |
G_FILE_COPY_NOFOLLOW_SYMLINKS |
G_FILE_COPY_TARGET_DEFAULT_PERMS,
NULL, NULL, NULL, error);
}
static gboolean
gs_install_appstream_check_content_type (GFile *file, GError **error)
{
const gchar *type;
g_autoptr(GError) error_local = NULL;
g_autoptr(GFileInfo) info = NULL;
g_autoptr(GPtrArray) components = NULL;
g_autoptr(XbBuilder) builder = xb_builder_new ();
g_autoptr(XbBuilderSource) source = xb_builder_source_new ();
g_autoptr(XbSilo) silo = NULL;
/* check is correct type */
info = g_file_query_info (file,
G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE,
G_FILE_QUERY_INFO_NONE,
NULL, error);
if (info == NULL)
return FALSE;
type = g_file_info_get_attribute_string (info, G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE);
if (g_strcmp0 (type, "application/gzip") != 0 &&
g_strcmp0 (type, "application/xml") != 0) {
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_DATA,
"Invalid type %s: ", type);
return FALSE;
}
/* check is an AppStream file */
if (!xb_builder_source_load_file (source, file,
XB_BUILDER_SOURCE_FLAG_NONE,
NULL, &error_local)) {
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_DATA,
"Failed to import XML: %s", error_local->message);
return FALSE;
}
xb_builder_import_source (builder, source);
silo = xb_builder_compile (builder,
XB_BUILDER_COMPILE_FLAG_NONE,
NULL, &error_local);
if (silo == NULL) {
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_DATA,
"Failed to parse XML: %s", error_local->message);
return FALSE;
}
components = xb_silo_query (silo, "components/component", 0, &error_local);
if (components == NULL) {
if (g_error_matches (error_local, G_IO_ERROR, G_IO_ERROR_NOT_FOUND)) {
g_set_error_literal (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_DATA,
"No applications found in the AppStream XML");
return FALSE;
}
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_DATA,
"Failed to query XML: %s", error_local->message);
return FALSE;
}
return TRUE;
}
int
main (int argc, char *argv[])
{
g_autoptr(GError) error = NULL;
g_autoptr(GFile) file = NULL;
g_autoptr(GOptionContext) context = NULL;
/* setup translations */
setlocale (LC_ALL, "");
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
context = g_option_context_new (NULL);
/* TRANSLATORS: tool that is used when copying profiles system-wide */
g_option_context_set_summary (context, _("GNOME Software AppStream system-wide installer"));
if (!g_option_context_parse (context, &argc, &argv, &error)) {
g_print ("%s\n", _("Failed to parse command line arguments"));
return EXIT_FAILURE;
}
/* check input */
if (g_strv_length (argv) != 2) {
/* TRANSLATORS: user did not specify a valid filename */
g_print ("%s\n", _("You need to specify exactly one filename"));
return EXIT_FAILURE;
}
/* check calling process */
if (getuid () != 0 || geteuid () != 0) {
/* TRANSLATORS: only able to install files as root */
g_print ("%s\n", _("This program can only be used by the root user"));
return EXIT_FAILURE;
}
/* check content type for file */
file = g_file_new_for_path (argv[1]);
if (!gs_install_appstream_check_content_type (file, &error)) {
/* TRANSLATORS: error details */
g_print ("%s: %s\n", _("Failed to validate content type"), error->message);
return EXIT_FAILURE;
}
/* Set the umask to ensure it is read-only to all users except root. */
umask (022);
/* do the copy */
if (!gs_install_appstream_copy_file (file, &error)) {
/* TRANSLATORS: error details */
g_print ("%s: %s\n", _("Failed to copy"), error->message);
return EXIT_FAILURE;
}
/* success */
return EXIT_SUCCESS;
}
|
