552a679bdb7c91c6d6facdf13e64879fab4ef123
[platform/core/api/media-content.git] / src / media_util_private.c
1 /*
2 * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17
18 #include <dirent.h>
19 #include <fcntl.h>
20 #include <media_info_private.h>
21 #include <system_info.h>
22 #include <sys/stat.h>
23
24 static int MEDIA_CONTENT_OTHER_SUPPORT = -1;
25
26 bool _media_util_check_support_media_type(const char *path)
27 {
28         int ret = SYSTEM_INFO_ERROR_NONE;
29         int media_type = -1;
30         bool is_supported = false;
31
32         content_retvm_if(!STRING_VALID(path), false, "path is empty");
33
34         if (MEDIA_CONTENT_OTHER_SUPPORT == -1) {
35                 ret = system_info_get_platform_bool("http://tizen.org/feature/content.scanning.others", &is_supported);
36                 content_retvm_if(ret != SYSTEM_INFO_ERROR_NONE, false, "SYSTEM_INFO_ERROR: content.scanning.others [%d]", ret);
37
38                 MEDIA_CONTENT_OTHER_SUPPORT = is_supported;
39         }
40
41         /* If not, check media type */
42         if (!MEDIA_CONTENT_OTHER_SUPPORT) {
43                 ret = media_svc_get_media_type(path, &media_type);
44                 content_retvm_if(ret != MS_MEDIA_ERR_NONE, false, "Failed to get media type");
45                 content_retv_if(media_type == MEDIA_CONTENT_TYPE_OTHERS, false);
46         }
47
48         return true;
49 }
50
51 int _media_util_check_file_exist(const char *path)
52 {
53         int exist;
54
55         /* check the file exits actually */
56         exist = open(path, O_RDONLY);
57         if (exist < 0) {
58                 if (errno == EACCES || errno == EPERM) {
59                         content_stderror("open file fail");
60                         return MEDIA_CONTENT_ERROR_PERMISSION_DENIED;
61                 } else {
62                         content_stderror("open file fail");
63                         return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
64                 }
65         }
66
67         close(exist);
68
69         return MEDIA_CONTENT_ERROR_NONE;
70 }
71
72 int _media_util_get_file_time(const char *path)
73 {
74         struct stat statbuf = { 0, };
75
76         content_retvm_if(stat(path, &statbuf) == -1, 0, "stat failed");
77
78         return statbuf.st_mtime;
79 }
80
81 bool _media_util_is_ignorable_file(const char *path)
82 {
83         g_autofree gchar *real = NULL;
84         g_autofree gchar *org_path = NULL;
85 #ifndef _USE_TVPD_MODE
86         char replace[MAX_PATH_LEN] = {0, };
87 #endif
88
89         content_retip_if_fail(STRING_VALID(path));
90
91         /* Check is exist (It may be the path to the deleted file) */
92         content_retvm_if(!g_file_test(path, G_FILE_TEST_EXISTS), false, "removed path");
93
94         /* Check symbolic link file */
95         content_retvm_if(g_file_test(path, G_FILE_TEST_IS_SYMLINK), true, "symbolic link(file)");
96
97         /* Check hidden path */
98         content_retvm_if(strstr(path, "/."), true, "hidden path");
99
100         /* Check symbolic directory */
101         real = realpath(path, NULL);
102         /* Get trimmed path */
103         org_path = g_canonicalize_filename(path, NULL);
104
105 #ifdef _USE_TVPD_MODE
106         if (g_strcmp0(real, org_path) != 0) {
107                 content_error("symbolic link(directory)");
108                 return true;
109         }
110 #else
111         if (g_str_has_prefix(real, tzplatform_getenv(TZ_SYS_MEDIASHARED))) {
112                 /* If shared directory, it should be change path to TZ_USER_SHARE from realpath */
113                 snprintf(replace, MAX_PATH_LEN, "%s%s", tzplatform_getenv(TZ_USER_MEDIASHARED), real + strlen(tzplatform_getenv(TZ_SYS_MEDIASHARED)));
114                 if (g_strcmp0(replace, org_path) != 0) {
115                         content_error("symbolic link(directory)");
116                         return true;
117                 }
118         } else {
119                 if (g_strcmp0(real, org_path) != 0) {
120                         content_error("symbolic link(directory)");
121                         return true;
122                 }
123         }
124 #endif
125
126         return false;
127 }
128
129 static bool __is_scan_ignore_exist(const char *path)
130 {
131         const char *scan_ignore = ".scan_ignore";
132         char *ignore_path = NULL;
133         gboolean result = FALSE;
134
135         if (!STRING_VALID(path))
136                 return false;
137
138         ignore_path = g_build_path(G_DIR_SEPARATOR_S, path, scan_ignore, NULL);
139         result = g_file_test(ignore_path, G_FILE_TEST_EXISTS);
140
141         if (result)
142                 content_error("scan ignore file exist [%s]", ignore_path);
143
144         g_free(ignore_path);
145
146         return (bool)result;
147 }
148
149 bool _media_util_is_ignorable_dir(const char *dir_path)
150 {
151         if (!STRING_VALID(dir_path))
152                 return true;
153
154         /*1. Check Hidden Directory*/
155         content_retvm_if(strstr(dir_path, "/."), true, "hidden path");
156
157         /*2. Check Scan Ignore Directory*/
158         content_retvm_if(!ms_user_is_valid_path(_content_get_uid(), dir_path), true, "ms_user_is_valid_path failed");
159
160         char *leaf_path = NULL;
161         char search_path[MAX_PATH_LEN] = {0, };
162
163         g_strlcpy(search_path, dir_path, sizeof(search_path));
164
165         while (strlen(search_path) > 0) {
166                 if (__is_scan_ignore_exist(search_path))
167                         return true;
168
169                 leaf_path = strrchr(search_path, '/');
170                 if (!leaf_path)
171                         break;
172
173                 search_path[leaf_path - search_path] = '\0';
174         }
175
176         return false;
177 }
178
179 int _media_content_check_dir(const char *path)
180 {
181         DIR *dp = NULL;
182         g_autofree gchar *real = NULL;
183         g_autofree gchar *origin = NULL;
184 #ifndef _USE_TVPD_MODE
185         char result_path[MAX_PATH_LEN] = {0, };
186 #endif
187         dp = opendir(path);
188         if (dp == NULL) {
189                 if (errno == EACCES || errno == EPERM) {
190                         content_stderror("open dir fail");
191                         return MEDIA_CONTENT_ERROR_PERMISSION_DENIED;
192                 } else {
193                         content_stderror("open dir fail");
194                         return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
195                 }
196         }
197
198         closedir(dp);
199
200         /* Check symbolic link directory */
201         real = realpath(path, NULL);
202         /* Get trimmed path */
203         origin = g_canonicalize_filename(path, NULL);
204
205 #ifdef _USE_TVPD_MODE
206         if (g_strcmp0(real, origin) != 0) {
207                 content_error("symbolic link(directory)");
208                 return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
209         }
210 #else
211         if (g_str_has_prefix(real, tzplatform_getenv(TZ_SYS_MEDIASHARED))) {
212                 /* If shared directory, it should be change path to TZ_USER_SHARE from realpath */
213                 snprintf(result_path, MAX_PATH_LEN, "%s%s", tzplatform_getenv(TZ_USER_MEDIASHARED), real + strlen(tzplatform_getenv(TZ_SYS_MEDIASHARED)));
214                 if (g_strcmp0(result_path, origin) != 0) {
215                         content_error("symbolic link(directory)");
216                         return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
217                 }
218         } else {
219                 if (g_strcmp0(real, origin) != 0) {
220                         content_error("symbolic link(directory)");
221                         return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
222                 }
223         }
224 #endif
225
226         return MEDIA_CONTENT_ERROR_NONE;
227 }