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Commit e45c692c authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont
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Untested FTP access output (closes #605)

parent 4a0c164d
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Showing with 234 additions and 121 deletions
modules/access/ftp.c
View file @ e45c692c
......@@ -27,6 +27,7 @@
* Preamble
*****************************************************************************/
#include <stdlib.h>
#include <assert.h>
#include <vlc/vlc.h>
#include <vlc/input.h>
......@@ -34,12 +35,15 @@
#include "network.h"
#include "vlc_url.h"
#include "stream_output.h"
/*****************************************************************************
* Module descriptor
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close( vlc_object_t * );
static int InOpen ( vlc_object_t * );
static void InClose( vlc_object_t * );
static int OutOpen ( vlc_object_t * );
static void OutClose( vlc_object_t * );
#define CACHING_TEXT N_("Caching value in ms")
#define CACHING_LONGTEXT N_( \
......@@ -70,14 +74,25 @@ vlc_module_begin();
add_string( "ftp-account", "anonymous", NULL, ACCOUNT_TEXT,
ACCOUNT_LONGTEXT, VLC_FALSE );
add_shortcut( "ftp" );
set_callbacks( Open, Close );
set_callbacks( InOpen, InClose );
add_submodule();
set_shortname( "FTP" );
set_description( _("FTP upload output") );
set_capability( "sout access", 0 );
set_category( CAT_SOUT );
set_subcategory( SUBCAT_SOUT_ACO );
add_shortcut( "ftp" );
set_callbacks( OutOpen, OutClose );
vlc_module_end();
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int Read( access_t *, uint8_t *, int );
static int Write( sout_access_out_t *, block_t * );
static int Seek( access_t *, int64_t );
static int OutSeek( sout_access_out_t *, int64_t );
static int Control( access_t *, int, va_list );
struct access_sys_t
......@@ -89,19 +104,21 @@ struct access_sys_t
char sz_epsv_ip[NI_MAXNUMERICHOST];
};
#define GET_OUT_SYS( p_this ) \
((access_sys_t *)(((sout_access_out_t *)(p_this))->p_sys))
static int ftp_SendCommand( access_t *, char *, ... );
static int ftp_ReadCommand( access_t *, int *, char ** );
static int ftp_StartStream( access_t *, int64_t );
static int ftp_StopStream ( access_t *);
static int ftp_SendCommand( vlc_object_t *, access_sys_t *, const char *, ... );
static int ftp_ReadCommand( vlc_object_t *, access_sys_t *, int *, char ** );
static int ftp_StartStream( vlc_object_t *, access_sys_t *, int64_t );
static int ftp_StopStream ( vlc_object_t *, access_sys_t * );
static int Connect( access_t *p_access, access_sys_t *p_sys )
static int Login( vlc_object_t *p_access, access_sys_t *p_sys )
{
int fd, i_answer;
int i_answer;
char *psz;
/* *** Open a TCP connection with server *** */
p_sys->fd_cmd = fd = net_ConnectTCP( p_access, p_sys->url.psz_host,
int fd = p_sys->fd_cmd = net_ConnectTCP( p_access, p_sys->url.psz_host,
p_sys->url.i_port );
if( fd == -1 )
{
......@@ -111,7 +128,7 @@ static int Connect( access_t *p_access, access_sys_t *p_sys )
return -1;
}
while( ftp_ReadCommand( p_access, &i_answer, NULL ) == 1 );
while( ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) == 1 );
if( i_answer / 100 != 2 )
{
......@@ -128,8 +145,8 @@ static int Connect( access_t *p_access, access_sys_t *p_sys )
else
psz = var_CreateGetString( p_access, "ftp-user" );
if( ftp_SendCommand( p_access, "USER %s", psz ) < 0 ||
ftp_ReadCommand( p_access, &i_answer, NULL ) < 0 )
if( ftp_SendCommand( p_access, p_sys, "USER %s", psz ) < 0 ||
ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) < 0 )
{
free( psz );
return -1;
......@@ -148,8 +165,8 @@ static int Connect( access_t *p_access, access_sys_t *p_sys )
else
psz = var_CreateGetString( p_access, "ftp-pwd" );
if( ftp_SendCommand( p_access, "PASS %s", psz ) < 0 ||
ftp_ReadCommand( p_access, &i_answer, NULL ) < 0 )
if( ftp_SendCommand( p_access, p_sys, "PASS %s", psz ) < 0 ||
ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) < 0 )
{
free( psz );
return -1;
......@@ -164,9 +181,9 @@ static int Connect( access_t *p_access, access_sys_t *p_sys )
case 3:
msg_Dbg( p_access, "account needed" );
psz = var_CreateGetString( p_access, "ftp-account" );
if( ftp_SendCommand( p_access, "ACCT %s",
if( ftp_SendCommand( p_access, p_sys, "ACCT %s",
psz ) < 0 ||
ftp_ReadCommand( p_access, &i_answer, NULL ) < 0 )
ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) < 0 )
{
free( psz );
return -1;
......@@ -203,61 +220,26 @@ static int Connect( access_t *p_access, access_sys_t *p_sys )
return 0;
}
/****************************************************************************
* Open: connect to ftp server and ask for file
****************************************************************************/
static int Open( vlc_object_t *p_this )
static int Connect( vlc_object_t *p_access, access_sys_t *p_sys )
{
access_t *p_access = (access_t*)p_this;
access_sys_t *p_sys;
char *psz;
int i_answer;
char *psz_arg;
/* Init p_access */
STANDARD_READ_ACCESS_INIT
p_sys->fd_cmd = -1;
p_sys->fd_data = -1;
/* *** Parse URL and get server addr/port and path *** */
psz = p_access->psz_path;
while( *psz == '/' )
{
psz++;
}
vlc_UrlParse( &p_sys->url, psz, 0 );
if( p_sys->url.psz_host == NULL || *p_sys->url.psz_host == '\0' )
{
msg_Err( p_access, "invalid server name" );
goto exit_error;
}
if( p_sys->url.i_port <= 0 )
{
p_sys->url.i_port = 21; /* default port */
}
/* FTP URLs are relative to user's default directory (RFC1738)
For absolute path use ftp://foo.bar//usr/local/etc/filename */
if( *p_sys->url.psz_path == '/' )
p_sys->url.psz_path++;
if( Connect( p_access, p_sys ) < 0 )
goto exit_error;
if( Login( p_access, p_sys ) < 0 )
return -1;
/* Extended passive mode */
if( ftp_SendCommand( p_access, "EPSV ALL" ) < 0 )
if( ftp_SendCommand( p_access, p_sys, "EPSV ALL" ) < 0 )
{
msg_Err( p_access, "cannot request extended passive mode" );
net_Close( p_sys->fd_cmd );
return -1;
}
if( ftp_ReadCommand( p_access, &i_answer, NULL ) == 2 )
if( ftp_ReadCommand( p_access, p_sys, NULL, NULL ) == 2 )
{
if( net_GetPeerAddress( p_sys->fd_cmd, p_sys->sz_epsv_ip, NULL ) )
goto exit_error;
{
net_Close( p_sys->fd_cmd );
return -1;
}
}
else
{
......@@ -266,29 +248,81 @@ static int Open( vlc_object_t *p_this )
* understands EPSV ALL in the way, and hence won't allow PASV on
* the initial connection.
*/
net_Close( p_sys->fd_cmd );
p_sys->fd_cmd = -1;
*p_sys->sz_epsv_ip = '\0';
msg_Info( p_access, "FTP Extended passive mode disabled" );
net_Close( p_sys->fd_cmd );
if( ( p_sys->fd_cmd = Connect( p_access, p_sys ) ) < 0 )
goto exit_error;
if( ( p_sys->fd_cmd = Login( p_access, p_sys ) ) < 0 )
{
net_Close( p_sys->fd_cmd );
return -1;
}
}
/* binary mode */
if( ftp_SendCommand( p_access, "TYPE I" ) < 0 ||
ftp_ReadCommand( p_access, &i_answer, NULL ) != 2 )
/* check binary mode support */
if( ftp_SendCommand( p_access, p_sys, "TYPE I" ) < 0 ||
ftp_ReadCommand( p_access, p_sys, NULL, NULL ) != 2 )
{
msg_Err( p_access, "cannot set binary transfer mode" );
goto exit_error;
net_Close( p_sys->fd_cmd );
return -1;
}
return 0;
}
static int parseURL( vlc_url_t *url, const char *path )
{
if( path == NULL )
return -1;
/* *** Parse URL and get server addr/port and path *** */
while( *path == '/' )
path++;
vlc_UrlParse( url, path, 0 );
if( url->psz_host == NULL || *url->psz_host == '\0' )
return -1;
if( url->i_port <= 0 )
url->i_port = IPPORT_FTP; /* default port */
/* FTP URLs are relative to user's default directory (RFC1738)
For absolute path use ftp://foo.bar//usr/local/etc/filename */
if( *url->psz_path == '/' )
url->psz_path++;
return 0;
}
/****************************************************************************
* Open: connect to ftp server and ask for file
****************************************************************************/
static int InOpen( vlc_object_t *p_this )
{
access_t *p_access = (access_t*)p_this;
access_sys_t *p_sys;
char *psz_arg;
/* Init p_access */
STANDARD_READ_ACCESS_INIT
p_sys->fd_data = -1;
if( parseURL( &p_sys->url, p_access->psz_path ) )
goto exit_error;
if( Connect( p_this, p_sys ) )
goto exit_error;
/* get size */
if( ftp_SendCommand( p_access, "SIZE %s", p_sys->url.psz_path ) < 0 ||
ftp_ReadCommand( p_access, &i_answer, &psz_arg ) != 2 )
if( ftp_SendCommand( p_this, p_sys, "SIZE %s", p_sys->url.psz_path ) < 0 ||
ftp_ReadCommand( p_this, p_sys, NULL, &psz_arg ) != 2 )
{
msg_Err( p_access, "cannot get file size" );
net_Close( p_sys->fd_cmd );
goto exit_error;
}
p_access->info.i_size = atoll( &psz_arg[4] );
......@@ -296,9 +330,10 @@ static int Open( vlc_object_t *p_this )
msg_Dbg( p_access, "file size: "I64Fd, p_access->info.i_size );
/* Start the 'stream' */
if( ftp_StartStream( p_access, 0 ) < 0 )
if( ftp_StartStream( p_this, p_sys, 0 ) < 0 )
{
msg_Err( p_access, "cannot retrieve file" );
net_Close( p_sys->fd_cmd );
goto exit_error;
}
......@@ -308,8 +343,44 @@ static int Open( vlc_object_t *p_this )
return VLC_SUCCESS;
exit_error:
if( p_sys->fd_cmd != -1 )
vlc_UrlClean( &p_sys->url );
free( p_sys );
return VLC_EGENERIC;
}
static int OutOpen( vlc_object_t *p_this )
{
sout_access_out_t *p_access = (sout_access_out_t *)p_this;
access_sys_t *p_sys;
p_sys = malloc( sizeof( *p_sys ) );
if( p_sys == NULL )
return VLC_ENOMEM;
memset( p_sys, 0, sizeof( *p_sys ) );
/* Init p_access */
p_sys->fd_data = -1;
if( parseURL( &p_sys->url, p_access->psz_name ) )
goto exit_error;
if( Connect( p_this, p_sys ) )
goto exit_error;
/* Start the 'stream' */
if( ftp_StartStream( p_this, p_sys, 0 ) < 0 )
{
msg_Err( p_access, "cannot store file" );
net_Close( p_sys->fd_cmd );
goto exit_error;
}
p_access->pf_seek = OutSeek;
p_access->pf_write = Write;
return VLC_SUCCESS;
exit_error:
vlc_UrlClean( &p_sys->url );
free( p_sys );
return VLC_EGENERIC;
......@@ -318,21 +389,18 @@ exit_error:
/*****************************************************************************
* Close: free unused data structures
*****************************************************************************/
static void Close( vlc_object_t *p_this )
static void Close( vlc_object_t *p_access, access_sys_t *p_sys )
{
access_t *p_access = (access_t*)p_this;
access_sys_t *p_sys = p_access->p_sys;
msg_Dbg( p_access, "stopping stream" );
ftp_StopStream( p_access );
ftp_StopStream( p_access, p_sys );
if( ftp_SendCommand( p_access, "QUIT" ) < 0 )
if( ftp_SendCommand( p_access, p_sys, "QUIT" ) < 0 )
{
msg_Warn( p_access, "cannot quit" );
}
else
{
ftp_ReadCommand( p_access, NULL, NULL );
ftp_ReadCommand( p_access, p_sys, NULL, NULL );
}
net_Close( p_sys->fd_cmd );
......@@ -341,23 +409,39 @@ static void Close( vlc_object_t *p_this )
free( p_sys );
}
static void InClose( vlc_object_t *p_this )
{
Close( p_this, ((access_t *)p_this)->p_sys);
}
static void OutClose( vlc_object_t *p_this )
{
Close( p_this, GET_OUT_SYS(p_this));
}
/*****************************************************************************
* Seek: try to go at the right place
*****************************************************************************/
static int Seek( access_t *p_access, int64_t i_pos )
static int _Seek( vlc_object_t *p_access, access_sys_t *p_sys, int64_t i_pos )
{
if( i_pos < 0 )
{
return VLC_EGENERIC;
}
msg_Dbg( p_access, "seeking to "I64Fd, i_pos );
ftp_StopStream( p_access );
if( ftp_StartStream( p_access, i_pos ) < 0 )
{
p_access->info.b_eof = VLC_TRUE;
ftp_StopStream( (vlc_object_t *)p_access, p_sys );
if( ftp_StartStream( (vlc_object_t *)p_access, p_sys, i_pos ) < 0 )
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
static int Seek( access_t *p_access, int64_t i_pos )
{
int val = _Seek( (vlc_object_t *)p_access, p_access->p_sys, i_pos );
if( val )
return val;
p_access->info.b_eof = VLC_FALSE;
p_access->info.i_pos = i_pos;
......@@ -365,6 +449,11 @@ static int Seek( access_t *p_access, int64_t i_pos )
return VLC_SUCCESS;
}
static int OutSeek( sout_access_out_t *p_access, off_t i_pos )
{
return _Seek( (vlc_object_t *)p_access, GET_OUT_SYS( p_access ), i_pos);
}
/*****************************************************************************
* Read:
*****************************************************************************/
......@@ -373,6 +462,9 @@ static int Read( access_t *p_access, uint8_t *p_buffer, int i_len )
access_sys_t *p_sys = p_access->p_sys;
int i_read;
assert( p_sys->fd_data != -1 );
assert( p_access->i_object_type == VLC_OBJECT_ACCESS );
if( p_access->info.b_eof )
return 0;
......@@ -386,6 +478,30 @@ static int Read( access_t *p_access, uint8_t *p_buffer, int i_len )
return i_read;
}
/*****************************************************************************
* Write:
*****************************************************************************/
static int Write( sout_access_out_t *p_access, block_t *p_buffer )
{
access_sys_t *p_sys = GET_OUT_SYS(p_access);
size_t i_write = 0;
assert( p_sys->fd_data != -1 );
while( p_buffer != NULL )
{
block_t *p_next = p_buffer->p_next;;
i_write += net_Write( p_access, p_sys->fd_data, NULL,
p_buffer->p_buffer, p_buffer->i_buffer );
block_Release( p_buffer );
p_buffer = p_next;
}
return i_write;
}
/*****************************************************************************
* Control:
*****************************************************************************/
......@@ -450,9 +566,9 @@ static int Control( access_t *p_access, int i_query, va_list args )
/*****************************************************************************
* ftp_*:
*****************************************************************************/
static int ftp_SendCommand( access_t *p_access, char *psz_fmt, ... )
static int ftp_SendCommand( vlc_object_t *p_access, access_sys_t *p_sys,
const char *psz_fmt, ... )
{
access_sys_t *p_sys = p_access->p_sys;
va_list args;
char *psz_cmd;
......@@ -485,10 +601,9 @@ static int ftp_SendCommand( access_t *p_access, char *psz_fmt, ... )
These strings are not part of the requests, except in the case \377\377,
where the request contains one \377. */
static int ftp_ReadCommand( access_t *p_access,
static int ftp_ReadCommand( vlc_object_t *p_access, access_sys_t *p_sys,
int *pi_answer, char **ppsz_answer )
{
access_sys_t *p_sys = p_access->p_sys;
char *psz_line;
int i_answer;
......@@ -540,19 +655,18 @@ static int ftp_ReadCommand( access_t *p_access,
return( i_answer / 100 );
}
static int ftp_StartStream( access_t *p_access, off_t i_start )
static int ftp_StartStream( vlc_object_t *p_access, access_sys_t *p_sys,
off_t i_start )
{
access_sys_t *p_sys = p_access->p_sys;
char psz_ipv4[16], *psz_ip;
char psz_ipv4[16], *psz_ip = p_sys->sz_epsv_ip;
int i_answer;
char *psz_arg, *psz_parser;
int i_port;
psz_ip = p_sys->sz_epsv_ip;
assert( p_sys->fd_data == -1 );
if( ( ftp_SendCommand( p_access, *psz_ip ? "EPSV" : "PASV" ) < 0 )
|| ( ftp_ReadCommand( p_access, &i_answer, &psz_arg ) != 2 ) )
if( ( ftp_SendCommand( p_access, p_sys, *psz_ip ? "EPSV" : "PASV" ) < 0 )
|| ( ftp_ReadCommand( p_access, p_sys, &i_answer, &psz_arg ) != 2 ) )
{
msg_Err( p_access, "cannot set passive mode" );
return VLC_EGENERIC;
......@@ -599,8 +713,8 @@ static int ftp_StartStream( access_t *p_access, off_t i_start )
msg_Dbg( p_access, "ip:%s port:%d", psz_ip, i_port );
if( ftp_SendCommand( p_access, "TYPE I" ) < 0 ||
ftp_ReadCommand( p_access, &i_answer, NULL ) != 2 )
if( ftp_SendCommand( p_access, p_sys, "TYPE I" ) < 0 ||
ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) != 2 )
{
msg_Err( p_access, "cannot set binary transfer mode" );
return VLC_EGENERIC;
......@@ -608,10 +722,10 @@ static int ftp_StartStream( access_t *p_access, off_t i_start )
if( i_start > 0 )
{
if( ftp_SendCommand( p_access, "REST "I64Fu, i_start ) < 0 ||
ftp_ReadCommand( p_access, &i_answer, NULL ) > 3 )
if( ftp_SendCommand( p_access, p_sys, "REST "I64Fu, i_start ) < 0 ||
ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) > 3 )
{
msg_Err( p_access, "cannot set restart point" );
msg_Err( p_access, "cannot set restart offset" );
return VLC_EGENERIC;
}
}
......@@ -627,8 +741,11 @@ static int ftp_StartStream( access_t *p_access, off_t i_start )
psz_ip, i_port );
/* "1xx" message */
if( ftp_SendCommand( p_access, "RETR %s", p_sys->url.psz_path ) < 0 ||
ftp_ReadCommand( p_access, &i_answer, NULL ) > 2 )
if( ftp_SendCommand( p_access, p_sys, "%s %s",
(p_access->i_object_type == VLC_OBJECT_ACCESS)
? "RETR" : "STOR",
p_sys->url.psz_path ) < 0 ||
ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) > 2 )
{
msg_Err( p_access, "cannot retreive file" );
return VLC_EGENERIC;
......@@ -636,13 +753,9 @@ static int ftp_StartStream( access_t *p_access, off_t i_start )
return VLC_SUCCESS;
}
static int ftp_StopStream ( access_t *p_access )
static int ftp_StopStream ( vlc_object_t *p_access, access_sys_t *p_sys )
{
access_sys_t *p_sys = p_access->p_sys;
int i_answer;
if( ftp_SendCommand( p_access, "ABOR" ) < 0 )
if( ftp_SendCommand( p_access, p_sys, "ABOR" ) < 0 )
{
msg_Warn( p_access, "cannot abort file" );
if( p_sys->fd_data > 0 )
......@@ -650,14 +763,14 @@ static int ftp_StopStream ( access_t *p_access )
p_sys->fd_data = -1;
return VLC_EGENERIC;
}
if( p_sys->fd_data > 0 )
if( p_sys->fd_data != -1 )
{
net_Close( p_sys->fd_data );
p_sys->fd_data = -1;
ftp_ReadCommand( p_access, &i_answer, NULL );
ftp_ReadCommand( p_access, p_sys, NULL, NULL );
}
ftp_ReadCommand( p_access, &i_answer, NULL );
ftp_ReadCommand( p_access, p_sys, NULL, NULL );
return VLC_SUCCESS;
}
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