1 /* GIO - GLib Input, Output and Streaming Library
2 *
3 * Copyright (C) 2006-2007 Red Hat, Inc.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
17 *
18 * Author: Alexander Larsson <alexl@redhat.com>
19 */
20
21 #include "config.h"
22 #include "glocalvfs.h"
23 #include "glocalfile.h"
24 #include "giomodule.h"
25 #include "giomodule-priv.h"
26 #include "gvfs.h"
27 #include <gio/gdummyfile.h>
28 #include <sys/types.h>
29 #ifdef G_OS_UNIX
30 #include "glib-unix.h"
31 #include <pwd.h>
32 #endif
33 #include <string.h>
34
35
36 struct _GLocalVfs
37 {
38 GVfs parent;
39 };
40
41 struct _GLocalVfsClass
42 {
43 GVfsClass parent_class;
44
45 };
46
47 #define g_local_vfs_get_type _g_local_vfs_get_type
48 G_DEFINE_TYPE_WITH_CODE (GLocalVfs, g_local_vfs, G_TYPE_VFS,
49 _g_io_modules_ensure_extension_points_registered ();
50 g_io_extension_point_implement (G_VFS_EXTENSION_POINT_NAME,
51 g_define_type_id,
52 "local",
53 0))
54 static void
g_local_vfs_finalize(GObject * object)55 g_local_vfs_finalize (GObject *object)
56 {
57 /* must chain up */
58 G_OBJECT_CLASS (g_local_vfs_parent_class)->finalize (object);
59 }
60
61 static void
g_local_vfs_init(GLocalVfs * vfs)62 g_local_vfs_init (GLocalVfs *vfs)
63 {
64 }
65
66 /**
67 * g_local_vfs_new:
68 *
69 * Returns a new #GVfs handle for a local vfs.
70 *
71 * Returns: a new #GVfs handle.
72 **/
73 GVfs *
_g_local_vfs_new(void)74 _g_local_vfs_new (void)
75 {
76 return g_object_new (G_TYPE_LOCAL_VFS, NULL);
77 }
78
79 static GFile *
g_local_vfs_get_file_for_path(GVfs * vfs,const char * path)80 g_local_vfs_get_file_for_path (GVfs *vfs,
81 const char *path)
82 {
83 if (*path == '\0')
84 return _g_dummy_file_new (path);
85 else
86 return _g_local_file_new (path);
87 }
88
89 static GFile *
g_local_vfs_get_file_for_uri(GVfs * vfs,const char * uri)90 g_local_vfs_get_file_for_uri (GVfs *vfs,
91 const char *uri)
92 {
93 char *path;
94 GFile *file;
95 char *stripped_uri, *hash;
96
97 if (strchr (uri, '#') != NULL)
98 {
99 stripped_uri = g_strdup (uri);
100 hash = strchr (stripped_uri, '#');
101 *hash = 0;
102 }
103 else
104 stripped_uri = (char *)uri;
105
106 path = g_filename_from_uri (stripped_uri, NULL, NULL);
107
108 if (stripped_uri != uri)
109 g_free (stripped_uri);
110
111 if (path != NULL)
112 file = _g_local_file_new (path);
113 else
114 file = _g_dummy_file_new (uri);
115
116 g_free (path);
117
118 return file;
119 }
120
121 static const gchar * const *
g_local_vfs_get_supported_uri_schemes(GVfs * vfs)122 g_local_vfs_get_supported_uri_schemes (GVfs *vfs)
123 {
124 static const gchar * uri_schemes[] = { "file", NULL };
125
126 return uri_schemes;
127 }
128
129 static GFile *
g_local_vfs_parse_name(GVfs * vfs,const char * parse_name)130 g_local_vfs_parse_name (GVfs *vfs,
131 const char *parse_name)
132 {
133 GFile *file;
134 char *filename;
135 char *user_prefix;
136 const char *user_end;
137 char *rest;
138
139 g_return_val_if_fail (G_IS_VFS (vfs), NULL);
140 g_return_val_if_fail (parse_name != NULL, NULL);
141
142 if (g_ascii_strncasecmp ("file:", parse_name, 5) == 0)
143 filename = g_filename_from_uri (parse_name, NULL, NULL);
144 else
145 {
146 if (*parse_name == '~')
147 {
148 #ifdef G_OS_UNIX
149 const char *user_start;
150 user_start = parse_name + 1;
151 #endif
152 parse_name ++;
153
154 while (*parse_name != 0 && *parse_name != '/')
155 parse_name++;
156
157 user_end = parse_name;
158
159 #ifdef G_OS_UNIX
160 if (user_end == user_start)
161 user_prefix = g_strdup (g_get_home_dir ());
162 else
163 {
164 struct passwd *passwd_file_entry;
165 char *user_name;
166
167 user_name = g_strndup (user_start, user_end - user_start);
168 passwd_file_entry = g_unix_get_passwd_entry (user_name, NULL);
169 g_free (user_name);
170
171 if (passwd_file_entry != NULL &&
172 passwd_file_entry->pw_dir != NULL)
173 user_prefix = g_strdup (passwd_file_entry->pw_dir);
174 else
175 user_prefix = g_strdup (g_get_home_dir ());
176
177 g_free (passwd_file_entry);
178 }
179 #else
180 user_prefix = g_strdup (g_get_home_dir ());
181 #endif
182
183 rest = NULL;
184 if (*user_end != 0)
185 rest = g_filename_from_utf8 (user_end, -1, NULL, NULL, NULL);
186
187 filename = g_build_filename (user_prefix, rest, NULL);
188 g_free (rest);
189 g_free (user_prefix);
190 }
191 else
192 filename = g_filename_from_utf8 (parse_name, -1, NULL, NULL, NULL);
193 }
194
195 if (filename == NULL)
196 filename = g_strdup (parse_name);
197
198 file = _g_local_file_new (filename);
199 g_free (filename);
200
201 return file;
202 }
203
204 static gboolean
g_local_vfs_is_active(GVfs * vfs)205 g_local_vfs_is_active (GVfs *vfs)
206 {
207 return TRUE;
208 }
209
210 static void
g_local_vfs_class_init(GLocalVfsClass * class)211 g_local_vfs_class_init (GLocalVfsClass *class)
212 {
213 GObjectClass *object_class;
214 GVfsClass *vfs_class;
215
216 object_class = (GObjectClass *) class;
217
218 object_class->finalize = g_local_vfs_finalize;
219
220 vfs_class = G_VFS_CLASS (class);
221
222 vfs_class->is_active = g_local_vfs_is_active;
223 vfs_class->get_file_for_path = g_local_vfs_get_file_for_path;
224 vfs_class->get_file_for_uri = g_local_vfs_get_file_for_uri;
225 vfs_class->get_supported_uri_schemes = g_local_vfs_get_supported_uri_schemes;
226 vfs_class->parse_name = g_local_vfs_parse_name;
227 }
228