1 /*****************************************************************************
2 * gnomevfs.c: GnomeVFS input
3 *****************************************************************************
4 * Copyright (C) 2005 the VideoLAN team
7 * Authors: Benjamin Pracht <bigben -AT- videolan -DOT- org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
28 #include <vlc/input.h>
29 #include <libgnomevfs/gnome-vfs.h>
38 /*****************************************************************************
40 *****************************************************************************/
41 static int Open ( vlc_object_t * );
42 static void Close( vlc_object_t * );
44 #define CACHING_TEXT N_("Caching value in ms")
45 #define CACHING_LONGTEXT N_( \
46 "Allows you to modify the default caching value for GnomeVFS streams."\
47 "This value should be set in millisecond units." )
50 set_description( _("GnomeVFS filesystem file input") );
51 set_shortname( _("GnomeVFS") );
52 set_category( CAT_INPUT );
53 set_subcategory( SUBCAT_INPUT_ACCESS );
54 add_integer( "gnomevfs-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
55 set_capability( "access2", 10 );
56 add_shortcut( "gnomevfs" );
57 set_callbacks( Open, Close );
61 /*****************************************************************************
63 *****************************************************************************/
64 static int Seek( access_t *, int64_t );
65 static int Read( access_t *, uint8_t *, int );
66 static int Control( access_t *, int, va_list );
70 unsigned int i_nb_reads;
73 GnomeVFSHandle *p_handle;
74 GnomeVFSFileInfo *p_file_info;
77 vlc_bool_t b_seekable;
78 vlc_bool_t b_pace_control;
81 /*****************************************************************************
83 *****************************************************************************/
84 static int Open( vlc_object_t *p_this )
86 access_t *p_access = (access_t*)p_this;
87 access_sys_t *p_sys = NULL;
88 char *psz_name = NULL;
91 char *psz_unescaped = NULL;
92 char *psz_expand_tilde = NULL;
93 GnomeVFSURI *p_uri = NULL;
95 GnomeVFSHandle *p_handle = NULL;
97 if( !(gnome_vfs_init()) )
99 msg_Warn( p_access, "couldn't initilize GnomeVFS" );
104 Since GnomeVFS segfaults on exit if we initialize it without trying to
105 open a file with a valid protocol, try to open at least file:// */
106 gnome_vfs_open( &p_handle, "file://", 5 );
108 p_access->pf_read = Read;
109 p_access->pf_block = NULL;
110 p_access->pf_seek = Seek;
111 p_access->pf_control = Control;
112 p_access->info.i_update = 0;
113 p_access->info.i_size = 0;
114 p_access->info.i_pos = 0;
115 p_access->info.b_eof = VLC_FALSE;
116 p_access->info.i_title = 0;
117 p_access->info.i_seekpoint = 0;
119 p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
123 p_sys->p_handle = p_handle;
124 p_sys->i_nb_reads = 0;
125 p_sys->b_pace_control = VLC_TRUE;
127 if( strcmp( "gnomevfs", p_access->psz_access ) &&
128 *(p_access->psz_access) != '\0')
130 psz_name = malloc( strlen( p_access->psz_access ) +
131 strlen( p_access->psz_path ) + 4 );
132 sprintf( psz_name, "%s://%s", p_access->psz_access,
133 p_access->psz_path );
137 psz_name = strdup( p_access->psz_path );
139 psz = ToLocale( psz_name );
140 psz_expand_tilde = gnome_vfs_expand_initial_tilde( psz );
143 psz_unescaped = gnome_vfs_make_uri_from_shell_arg( psz_expand_tilde );
145 /* gnome_vfs_make_uri_from_shell_arg will only escape the uri
146 for relative paths. So we need to use
147 gnome_vfs_escape_host_and_path_string in other cases. */
149 if( !strcmp( psz_unescaped, psz_expand_tilde ) )
151 /* Now we are sure that we have a complete valid unescaped URI beginning
152 with the protocol. We want to escape it. However, gnomevfs's escaping
153 function are broken and will try to escape characters un the username/
154 password field. So parse the URI with vlc_UrlParse ans only escape the
158 char *psz_escaped_path;
159 char *psz_path_begin;
161 vlc_UrlParse( &url, psz_unescaped, 0 );
163 psz_escaped_path = gnome_vfs_escape_path_string( url.psz_path );
165 /* Now let's reconstruct a valid URI from all that stuff */
166 psz_path_begin = strstr( psz_unescaped, url.psz_path );
167 *psz_path_begin = '\0';
168 psz_uri = malloc( strlen( psz_unescaped ) +
169 strlen( psz_escaped_path ) + 1 );
170 sprintf( psz_uri, "%s%s",psz_unescaped, psz_escaped_path );
172 g_free( psz_escaped_path );
173 g_free( psz_unescaped );
177 psz_uri = psz_unescaped;
180 g_free( psz_expand_tilde );
181 p_uri = gnome_vfs_uri_new( psz_uri );
184 p_sys->p_file_info = gnome_vfs_file_info_new();
185 i_ret = gnome_vfs_get_file_info_uri( p_uri,
186 p_sys->p_file_info, 8 );
190 msg_Err( p_access, "cannot get file info for uri %s (%s)",
191 psz_uri, gnome_vfs_result_to_string( i_ret ) );
192 gnome_vfs_file_info_unref( p_sys->p_file_info );
193 gnome_vfs_uri_unref( p_uri);
202 msg_Warn( p_access, "cannot parse MRL %s or unsupported protocol", psz_name );
209 msg_Dbg( p_access, "opening file `%s'", psz_uri );
210 i_ret = gnome_vfs_open( &(p_sys->p_handle), psz_uri, 5 );
213 msg_Warn( p_access, "cannot open file %s: %s", psz_uri,
214 gnome_vfs_result_to_string( i_ret ) );
216 gnome_vfs_uri_unref( p_uri);
223 if (GNOME_VFS_FILE_INFO_LOCAL( p_sys->p_file_info ))
225 p_sys->b_local = VLC_TRUE;
228 if( p_sys->p_file_info->type == GNOME_VFS_FILE_TYPE_REGULAR ||
229 p_sys->p_file_info->type == GNOME_VFS_FILE_TYPE_CHARACTER_DEVICE ||
230 p_sys->p_file_info->type == GNOME_VFS_FILE_TYPE_BLOCK_DEVICE )
232 p_sys->b_seekable = VLC_TRUE;
233 p_access->info.i_size = (int64_t)(p_sys->p_file_info->size);
235 else if( p_sys->p_file_info->type == GNOME_VFS_FILE_TYPE_FIFO
236 || p_sys->p_file_info->type == GNOME_VFS_FILE_TYPE_SOCKET )
238 p_sys->b_seekable = VLC_FALSE;
242 msg_Err( p_access, "unknown file type for `%s'", psz_name );
246 if( p_sys->b_seekable && !p_access->info.i_size )
248 /* FIXME that's bad because all others access will be probed */
249 msg_Err( p_access, "file %s is empty, aborting", psz_name );
250 gnome_vfs_file_info_unref( p_sys->p_file_info );
251 gnome_vfs_uri_unref( p_uri);
258 /* Update default_pts to a suitable value for file access */
259 var_Create( p_access, "gnomevfs-caching",
260 VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
263 p_sys->psz_name = psz_name;
264 gnome_vfs_uri_unref( p_uri);
268 /*****************************************************************************
269 * Close: close the target
270 *****************************************************************************/
271 static void Close( vlc_object_t * p_this )
273 access_t *p_access = (access_t*)p_this;
274 access_sys_t *p_sys = p_access->p_sys;
277 i_result = gnome_vfs_close( p_sys->p_handle );
280 msg_Err( p_access, "cannot close %s: %s", p_sys->psz_name,
281 gnome_vfs_result_to_string( i_result ) );
284 gnome_vfs_file_info_unref( p_sys->p_file_info );
286 free( p_sys->psz_name );
290 /*****************************************************************************
291 * Read: standard read on a file descriptor.
292 *****************************************************************************/
293 static int Read( access_t *p_access, uint8_t *p_buffer, int i_len )
295 access_sys_t *p_sys = p_access->p_sys;
296 GnomeVFSFileSize i_read_len;
299 i_ret = gnome_vfs_read( p_sys->p_handle, p_buffer,
300 (GnomeVFSFileSize)i_len, &i_read_len );
303 p_access->info.b_eof = VLC_TRUE;
304 if( i_ret != GNOME_VFS_ERROR_EOF )
306 msg_Err( p_access, "read failed (%s)",
307 gnome_vfs_result_to_string( i_ret ) );
313 if( p_access->info.i_size != 0 &&
314 (p_sys->i_nb_reads % INPUT_FSTAT_NB_READS) == 0 &&
317 gnome_vfs_file_info_clear( p_sys->p_file_info );
318 i_ret = gnome_vfs_get_file_info_from_handle( p_sys->p_handle,
319 p_sys->p_file_info, 8 );
322 msg_Warn( p_access, "couldn't get file properties again (%s)",
323 gnome_vfs_result_to_string( i_ret ) );
327 p_access->info.i_size = (int64_t)(p_sys->p_file_info->size);
332 p_access->info.i_pos += (int64_t)i_read_len;
334 /* Some Acces (http) never return EOF and loop on the file */
335 if( p_access->info.i_pos > p_access->info.i_size )
337 p_access->info.b_eof = VLC_TRUE;
340 return (int)i_read_len;
343 /*****************************************************************************
344 * Seek: seek to a specific location in a file
345 *****************************************************************************/
346 static int Seek( access_t *p_access, int64_t i_pos )
348 access_sys_t *p_sys = p_access->p_sys;
351 i_ret = gnome_vfs_seek( p_sys->p_handle, GNOME_VFS_SEEK_START,
352 (GnomeVFSFileOffset)i_pos);
355 p_access->info.i_pos = i_pos;
359 GnomeVFSFileSize i_offset;
360 msg_Err( p_access, "cannot seek (%s)",
361 gnome_vfs_result_to_string( i_ret ) );
362 i_ret = gnome_vfs_tell( p_sys->p_handle, &i_offset );
365 msg_Err( p_access, "cannot tell the current position (%s)",
366 gnome_vfs_result_to_string( i_ret ) );
371 p_access->info.b_eof = VLC_FALSE;
377 /*****************************************************************************
379 *****************************************************************************/
380 static int Control( access_t *p_access, int i_query, va_list args )
382 access_sys_t *p_sys = p_access->p_sys;
390 case ACCESS_CAN_SEEK:
391 case ACCESS_CAN_FASTSEEK:
392 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
393 *pb_bool = p_sys->b_seekable;
396 case ACCESS_CAN_PAUSE:
397 case ACCESS_CAN_CONTROL_PACE:
398 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
399 *pb_bool = p_sys->b_pace_control;
404 pi_int = (int*)va_arg( args, int * );
408 case ACCESS_GET_PTS_DELAY:
409 pi_64 = (int64_t*)va_arg( args, int64_t * );
410 *pi_64 = var_GetInteger( p_access,
411 "gnomevfs-caching" ) * I64C(1000);
415 case ACCESS_SET_PAUSE_STATE:
419 case ACCESS_GET_TITLE_INFO:
420 case ACCESS_SET_TITLE:
421 case ACCESS_SET_SEEKPOINT:
422 case ACCESS_SET_PRIVATE_ID_STATE:
423 case ACCESS_GET_META:
427 msg_Warn( p_access, "unimplemented query in control" );