glib/gio/gio-tool-info.c
Philip Withnall 7082f03dbf gio-tool-info: Add missing attribute check
`g_file_info_get_is_hidden()` should not be called without checking the
attribute is set first, just as with the calls higher up in this code.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>

Helps: #2907
2023-02-08 11:58:15 +00:00

431 lines
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/*
* Copyright 2015 Red Hat, Inc.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* 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 2.1 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, see <http://www.gnu.org/licenses/>.
*
* Author: Matthias Clasen <mclasen@redhat.com>
*/
#include "config.h"
#include <gio/gio.h>
#include <gi18n.h>
#ifdef G_OS_UNIX
#include <gio/gunixmounts.h>
#endif
#include "gio-tool.h"
static gboolean writable = FALSE;
static gboolean filesystem = FALSE;
static char *global_attributes = NULL;
static gboolean nofollow_symlinks = FALSE;
static const GOptionEntry entries[] = {
{ "query-writable", 'w', 0, G_OPTION_ARG_NONE, &writable, N_("List writable attributes"), NULL },
{ "filesystem", 'f', 0, G_OPTION_ARG_NONE, &filesystem, N_("Get file system info"), NULL },
{ "attributes", 'a', 0, G_OPTION_ARG_STRING, &global_attributes, N_("The attributes to get"), N_("ATTRIBUTES") },
{ "nofollow-symlinks", 'n', 0, G_OPTION_ARG_NONE, &nofollow_symlinks, N_("Dont follow symbolic links"), NULL },
G_OPTION_ENTRY_NULL
};
static char *
escape_string (const char *in)
{
GString *str;
static char *hex_digits = "0123456789abcdef";
unsigned char c;
str = g_string_new ("");
while ((c = *in++) != 0)
{
if (c >= 32 && c <= 126 && c != '\\')
g_string_append_c (str, c);
else
{
g_string_append (str, "\\x");
g_string_append_c (str, hex_digits[(c >> 4) & 0xf]);
g_string_append_c (str, hex_digits[c & 0xf]);
}
}
return g_string_free (str, FALSE);
}
static char *
flatten_string (const char *in)
{
GString *str;
unsigned char c;
str = g_string_new ("");
while ((c = *in++) != 0)
{
switch (c)
{
case '\n':
g_string_append (str, "");
break;
default:
g_string_append_c (str, c);
break;
}
}
return g_string_free (str, FALSE);
}
static void
show_attributes (GFileInfo *info)
{
char **attributes;
char *s, *flatten;
int i;
attributes = g_file_info_list_attributes (info, NULL);
g_print (_("attributes:\n"));
for (i = 0; attributes[i] != NULL; i++)
{
/* list the icons in order rather than displaying "GThemedIcon:0x8df7200" */
if (strcmp (attributes[i], "standard::icon") == 0 ||
strcmp (attributes[i], "standard::symbolic-icon") == 0)
{
GIcon *icon;
int j;
const char * const *names = NULL;
if (strcmp (attributes[i], "standard::symbolic-icon") == 0)
icon = g_file_info_get_symbolic_icon (info);
else
icon = g_file_info_get_icon (info);
/* only look up names if GThemedIcon */
if (G_IS_THEMED_ICON(icon))
{
names = g_themed_icon_get_names (G_THEMED_ICON (icon));
g_print (" %s: ", attributes[i]);
for (j = 0; names[j] != NULL; j++)
g_print ("%s%s", names[j], (names[j+1] == NULL)?"":", ");
g_print ("\n");
}
else
{
s = g_file_info_get_attribute_as_string (info, attributes[i]);
g_print (" %s: %s\n", attributes[i], s);
g_free (s);
}
}
else
{
s = g_file_info_get_attribute_as_string (info, attributes[i]);
flatten = flatten_string (s);
g_print (" %s: %s\n", attributes[i], flatten);
g_free (flatten);
g_free (s);
}
}
g_strfreev (attributes);
}
static void
show_info (GFile *file, GFileInfo *info)
{
const char *name, *type;
char *escaped, *uri, *flatten;
goffset size;
const char *path;
#ifdef G_OS_UNIX
GUnixMountEntry *entry;
#endif
name = g_file_info_get_display_name (info);
if (name)
{
/* Translators: This is a noun and represents and attribute of a file */
flatten = flatten_string (name);
g_print (_("display name: %s\n"), flatten);
g_free (flatten);
}
name = g_file_info_get_edit_name (info);
if (name)
{
/* Translators: This is a noun and represents and attribute of a file */
flatten = flatten_string (name);
g_print (_("display name: %s\n"), flatten);
g_free (flatten);
}
name = g_file_info_get_name (info);
if (name)
{
escaped = escape_string (name);
g_print (_("name: %s\n"), escaped);
g_free (escaped);
}
if (g_file_info_has_attribute (info, G_FILE_ATTRIBUTE_STANDARD_TYPE))
{
type = file_type_to_string (g_file_info_get_file_type (info));
g_print (_("type: %s\n"), type);
}
if (g_file_info_has_attribute (info, G_FILE_ATTRIBUTE_STANDARD_SIZE))
{
size = g_file_info_get_size (info);
g_print (_("size: "));
g_print (" %"G_GUINT64_FORMAT"\n", (guint64)size);
}
if (g_file_info_has_attribute (info, G_FILE_ATTRIBUTE_STANDARD_IS_HIDDEN) &&
g_file_info_get_is_hidden (info))
g_print (_("hidden\n"));
uri = g_file_get_uri (file);
g_print (_("uri: %s\n"), uri);
g_free (uri);
path = g_file_peek_path (file);
if (path)
{
flatten = flatten_string (path);
g_print (_("local path: %s\n"), flatten);
free (flatten);
#ifdef G_OS_UNIX
entry = g_unix_mount_at (path, NULL);
if (entry == NULL)
entry = g_unix_mount_for (path, NULL);
if (entry != NULL)
{
gchar *device;
const gchar *root;
gchar *root_string = NULL;
gchar *mount;
gchar *fs;
const gchar *options;
gchar *options_string = NULL;
device = g_strescape (g_unix_mount_get_device_path (entry), NULL);
root = g_unix_mount_get_root_path (entry);
if (root != NULL && g_strcmp0 (root, "/") != 0)
{
escaped = g_strescape (root, NULL);
root_string = g_strconcat ("[", escaped, "]", NULL);
g_free (escaped);
}
mount = g_strescape (g_unix_mount_get_mount_path (entry), NULL);
fs = g_strescape (g_unix_mount_get_fs_type (entry), NULL);
options = g_unix_mount_get_options (entry);
if (options != NULL)
{
options_string = g_strescape (options, NULL);
}
g_print (_("unix mount: %s%s %s %s %s\n"), device,
root_string ? root_string : "", mount, fs,
options_string ? options_string : "");
g_free (device);
g_free (root_string);
g_free (mount);
g_free (fs);
g_free (options_string);
g_unix_mount_free (entry);
}
#endif
}
show_attributes (info);
}
static gboolean
query_info (GFile *file)
{
GFileQueryInfoFlags flags;
GFileInfo *info;
GError *error;
if (file == NULL)
return FALSE;
if (global_attributes == NULL)
global_attributes = "*";
flags = 0;
if (nofollow_symlinks)
flags |= G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS;
error = NULL;
if (filesystem)
info = g_file_query_filesystem_info (file, global_attributes, NULL, &error);
else
info = g_file_query_info (file, global_attributes, flags, NULL, &error);
if (info == NULL)
{
print_file_error (file, error->message);
g_error_free (error);
return FALSE;
}
if (filesystem)
show_attributes (info);
else
show_info (file, info);
g_object_unref (info);
return TRUE;
}
static gboolean
get_writable_info (GFile *file)
{
GFileAttributeInfoList *list;
GError *error;
int i;
char *flags;
if (file == NULL)
return FALSE;
error = NULL;
list = g_file_query_settable_attributes (file, NULL, &error);
if (list == NULL)
{
print_file_error (file, error->message);
g_error_free (error);
return FALSE;
}
if (list->n_infos > 0)
{
g_print (_("Settable attributes:\n"));
for (i = 0; i < list->n_infos; i++)
{
flags = attribute_flags_to_string (list->infos[i].flags);
g_print (" %s (%s%s%s)\n",
list->infos[i].name,
attribute_type_to_string (list->infos[i].type),
(*flags != 0)?", ":"", flags);
g_free (flags);
}
}
g_file_attribute_info_list_unref (list);
list = g_file_query_writable_namespaces (file, NULL, &error);
if (list == NULL)
{
print_file_error (file, error->message);
g_error_free (error);
return FALSE;
}
if (list->n_infos > 0)
{
g_print (_("Writable attribute namespaces:\n"));
for (i = 0; i < list->n_infos; i++)
{
flags = attribute_flags_to_string (list->infos[i].flags);
g_print (" %s (%s%s%s)\n",
list->infos[i].name,
attribute_type_to_string (list->infos[i].type),
(*flags != 0)?", ":"", flags);
g_free (flags);
}
}
g_file_attribute_info_list_unref (list);
return TRUE;
}
int
handle_info (int argc, char *argv[], gboolean do_help)
{
GOptionContext *context;
gchar *param;
GError *error = NULL;
gboolean res;
gint i;
GFile *file;
g_set_prgname ("gio info");
/* Translators: commandline placeholder */
param = g_strdup_printf ("%s…", _("LOCATION"));
context = g_option_context_new (param);
g_free (param);
g_option_context_set_help_enabled (context, FALSE);
g_option_context_set_summary (context,
_("Show information about locations."));
g_option_context_set_description (context,
_("gio info is similar to the traditional ls utility, but using GIO\n"
"locations instead of local files: for example, you can use something\n"
"like smb://server/resource/file.txt as location. File attributes can\n"
"be specified with their GIO name, e.g. standard::icon, or just by\n"
"namespace, e.g. unix, or by “*”, which matches all attributes"));
g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE);
if (do_help)
{
show_help (context, NULL);
g_option_context_free (context);
return 0;
}
if (!g_option_context_parse (context, &argc, &argv, &error))
{
show_help (context, error->message);
g_error_free (error);
g_option_context_free (context);
return 1;
}
if (argc < 2)
{
show_help (context, _("No locations given"));
g_option_context_free (context);
return 1;
}
g_option_context_free (context);
res = TRUE;
for (i = 1; i < argc; i++)
{
file = g_file_new_for_commandline_arg (argv[i]);
if (writable)
res &= get_writable_info (file);
else
res &= query_info (file);
g_object_unref (file);
}
return res ? 0 : 2;
}