1 /*****************************************************************************
2 * directory.c: expands a directory (directory: access plug-in)
3 *****************************************************************************
4 * Copyright (C) 2002-2008 the VideoLAN team
7 * Authors: Derk-Jan Hartman <hartman at videolan dot org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
33 #include <vlc_common.h>
34 #include <vlc_plugin.h>
35 #include <vlc_access.h>
37 #ifdef HAVE_SYS_TYPES_H
38 # include <sys/types.h>
40 #ifdef HAVE_SYS_STAT_H
41 # include <sys/stat.h>
46 #elif defined( WIN32 ) && !defined( UNDER_CE )
54 #include <vlc_charset.h>
57 /*****************************************************************************
59 *****************************************************************************/
60 static int Open ( vlc_object_t * );
61 static void Close( vlc_object_t * );
63 #define RECURSIVE_TEXT N_("Subdirectory behavior")
64 #define RECURSIVE_LONGTEXT N_( \
65 "Select whether subdirectories must be expanded.\n" \
66 "none: subdirectories do not appear in the playlist.\n" \
67 "collapse: subdirectories appear but are expanded on first play.\n" \
68 "expand: all subdirectories are expanded.\n" )
70 static const char *const psz_recursive_list[] = { "none", "collapse", "expand" };
71 static const char *const psz_recursive_list_text[] = {
72 N_("none"), N_("collapse"), N_("expand") };
74 #define IGNORE_TEXT N_("Ignored extensions")
75 #define IGNORE_LONGTEXT N_( \
76 "Files with these extensions will not be added to playlist when " \
77 "opening a directory.\n" \
78 "This is useful if you add directories that contain playlist files " \
79 "for instance. Use a comma-separated list of extensions." )
82 set_category( CAT_INPUT )
83 set_shortname( N_("Directory" ) )
84 set_subcategory( SUBCAT_INPUT_ACCESS )
85 set_description( N_("Standard filesystem directory input") )
86 set_capability( "access", 55 )
87 add_shortcut( "directory" )
89 add_shortcut( "file" )
90 add_string( "recursive", "expand" , NULL, RECURSIVE_TEXT,
91 RECURSIVE_LONGTEXT, false )
92 change_string_list( psz_recursive_list, psz_recursive_list_text, 0 )
93 add_string( "ignore-filetypes", "m3u,db,nfo,ini,jpg,jpeg,ljpg,gif,png,pgm,pgmyuv,pbm,pam,tga,bmp,pnm,xpm,xcf,pcx,tif,tiff,lbm,sfv,txt,sub,idx,srt,cue,ssa",
94 NULL, IGNORE_TEXT, IGNORE_LONGTEXT, false )
95 set_callbacks( Open, Close )
99 /*****************************************************************************
100 * Local prototypes, constants, structures
101 *****************************************************************************/
110 typedef struct directory_t directory_t;
124 directory_t *current;
130 static block_t *Block( access_t * );
131 static int Control( access_t *, int, va_list );
133 /*****************************************************************************
134 * Open: open the directory
135 *****************************************************************************/
136 static int Open( vlc_object_t *p_this )
138 access_t *p_access = (access_t*)p_this;
141 if( !p_access->psz_path )
145 if (strcmp (p_access->psz_path, "-"))
146 handle = utf8_opendir (p_access->psz_path);
149 #if 0 /* This won't work yet, it generates paths like "-/music.ogg".
150 * We'd need to use openat() here and in the file access... */
152 handle = fdopendir (fd);
163 p_sys = malloc (sizeof (*p_sys));
170 p_access->p_sys = p_sys;
171 p_sys->current = NULL;
172 p_sys->handle = handle;
173 p_sys->ignored_exts = var_CreateGetString (p_access, "ignore-filetypes");
176 char *psz = var_CreateGetString( p_access, "recursive" );
177 if( *psz == '\0' || !strcasecmp( psz, "none" ) )
178 p_sys->mode = MODE_NONE;
179 else if( !strcasecmp( psz, "collapse" ) )
180 p_sys->mode = MODE_COLLAPSE;
182 p_sys->mode = MODE_EXPAND;
185 p_access->pf_read = NULL;
186 p_access->pf_block = Block;
187 p_access->pf_seek = NULL;
188 p_access->pf_control= Control;
189 free (p_access->psz_demux);
190 p_access->psz_demux = strdup ("xspf-open");
195 /*****************************************************************************
196 * Close: close the target
197 *****************************************************************************/
198 static void Close( vlc_object_t * p_this )
200 access_t *p_access = (access_t*)p_this;
201 access_sys_t *p_sys = p_access->p_sys;
203 while (p_sys->current)
205 directory_t *current = p_sys->current;
207 p_sys->current = current->parent;
208 closedir (current->handle);
212 if (p_sys->handle != NULL)
213 closedir (p_sys->handle); /* corner case,:Block() not called ever */
214 free (p_sys->ignored_exts);
219 * URI-encodes a file path. The only reserved characters is slash.
221 static char *encode_path (const char *path)
223 static const char sep[]= "%2F";
224 char *enc = encode_URI_component (path), *ptr = enc;
229 /* Replace '%2F' with '/'. TODO: extend encode_URI*() */
230 /* (On Windows, both ':' and '\\' will be encoded) */
231 while ((ptr = strstr (ptr, sep)) != NULL)
234 memmove (ptr, ptr + 2, strlen (ptr) - 1);
239 /* Detect directories that recurse into themselves. */
240 static bool has_inode_loop (const directory_t *dir)
243 dev_t dev = dir->st.st_dev;
244 ino_t inode = dir->st.st_ino;
246 while ((dir = dir->parent) != NULL)
247 if ((dir->st.st_dev == dev) && (dir->st.st_ino == inode))
250 # define fstat( fd, st ) (0)
255 static block_t *Block (access_t *p_access)
257 access_sys_t *p_sys = p_access->p_sys;
258 directory_t *current = p_sys->current;
260 if (p_access->info.b_eof)
264 { /* Startup: send the XSPF header */
265 static const char header[] =
266 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
267 "<playlist version=\"1\" xmlns=\"http://xspf.org/ns/0/\">\n"
269 block_t *block = block_Alloc (sizeof (header) - 1);
272 memcpy (block->p_buffer, header, sizeof (header) - 1);
274 /* "Open" the base directory */
275 current = malloc (sizeof (*current) + strlen (p_access->psz_path));
278 block_Release (block);
281 current->parent = NULL;
282 current->handle = p_sys->handle;
283 strcpy (current->path, p_access->psz_path);
284 current->uri = encode_path (current->path);
285 if ((current->uri == NULL)
286 || fstat (dirfd (current->handle), ¤t->st))
290 block_Release (block);
294 p_sys->handle = NULL;
295 p_sys->current = current;
299 char *entry = utf8_readdir (current->handle);
301 { /* End of directory, go back to parent */
302 closedir (current->handle);
303 p_sys->current = current->parent;
306 if (p_sys->current == NULL)
307 { /* End of XSPF playlist */
308 static const char footer[] =
312 block_t *block = block_Alloc (sizeof (footer) - 1);
315 memcpy (block->p_buffer, footer, sizeof (footer) - 1);
316 p_access->info.b_eof = true;
322 /* Skip current, parent and hidden directories */
325 /* Handle recursion */
326 if (p_sys->mode != MODE_COLLAPSE)
328 directory_t *sub = malloc (sizeof (*sub) + strlen (current->path) + 1
332 sprintf (sub->path, "%s/%s", current->path, entry);
334 DIR *handle = utf8_opendir (sub->path);
337 sub->parent = current;
338 sub->handle = handle;
340 char *encoded = encode_URI_component (entry);
341 if ((encoded == NULL)
342 || (asprintf (&sub->uri, "%s/%s", current->uri, encoded) == -1))
346 if ((p_sys->mode == MODE_NONE)
347 || fstat (dirfd (handle), &sub->st)
348 || has_inode_loop (sub)
349 || (sub->uri == NULL))
355 p_sys->current = sub;
362 /* Skip files with ignored extensions */
363 if (p_sys->ignored_exts != NULL)
365 const char *ext = strrchr (entry, '.');
368 size_t extlen = strlen (++ext);
369 for (const char *type = p_sys->ignored_exts, *end;
370 type[0]; type = end + 1)
372 end = strchr (type, ',');
374 end = type + strlen (type);
376 if (type + extlen == end
377 && !strncasecmp (ext, type, extlen))
386 char *encoded = encode_URI_component (entry);
390 int len = asprintf (&entry,
391 " <track><location>file://%s/%s</location></track>\n",
392 current->uri, encoded);
397 /* TODO: new block allocator for malloc()ated data */
398 block_t *block = block_Alloc (len);
404 memcpy (block->p_buffer, entry, len);
409 p_access->info.b_eof = true;
413 /*****************************************************************************
415 *****************************************************************************/
416 static int Control( access_t *p_access, int i_query, va_list args )
424 case ACCESS_CAN_SEEK:
425 case ACCESS_CAN_FASTSEEK:
426 pb_bool = (bool*)va_arg( args, bool* );
430 case ACCESS_CAN_PAUSE:
431 case ACCESS_CAN_CONTROL_PACE:
432 pb_bool = (bool*)va_arg( args, bool* );
437 case ACCESS_GET_PTS_DELAY:
438 pi_64 = (int64_t*)va_arg( args, int64_t * );
439 *pi_64 = DEFAULT_PTS_DELAY * 1000;
443 case ACCESS_SET_PAUSE_STATE:
444 case ACCESS_GET_TITLE_INFO:
445 case ACCESS_SET_TITLE:
446 case ACCESS_SET_SEEKPOINT:
447 case ACCESS_SET_PRIVATE_ID_STATE:
448 case ACCESS_GET_CONTENT_TYPE:
449 case ACCESS_GET_META:
453 msg_Warn( p_access, "unimplemented query in control" );