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/*****************************************************************************
* audioscrobbler.c : audioscrobbler submission plugin
*****************************************************************************
* Copyright © 2006-2008 the VideoLAN team
* $Id$
*
* Author: Rafaël Carré <funman at videolanorg>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/* audioscrobbler protocol version: 1.2
* http://www.audioscrobbler.net/development/protocol/
*
* TODO: "Now Playing" feature (not mandatory)
*/
/*****************************************************************************
* Preamble
*****************************************************************************/
#if defined( WIN32 )
#include <time.h>
#endif
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_interface.h>
#include <vlc_meta.h>
#include <vlc_md5.h>
#include <vlc_block.h>
#include <vlc_stream.h>
#include <vlc_url.h>
#include <vlc_network.h>
#include <vlc_interface.h>
#include <vlc_playlist.h>
/*****************************************************************************
* Local prototypes
*****************************************************************************/
#define QUEUE_MAX 50
/* Keeps track of metadata to be submitted */
typedef struct audioscrobbler_song_t
{
char *psz_a; /**< track artist */
char *psz_t; /**< track title */
char *psz_b; /**< track album */
char *psz_n; /**< track number */
int i_l; /**< track length */
char *psz_m; /**< musicbrainz id */
time_t date; /**< date since epoch */
mtime_t i_start; /**< playing start */
} audioscrobbler_song_t;
struct intf_sys_t
{
audioscrobbler_song_t p_queue[QUEUE_MAX]; /**< songs not submitted yet*/
int i_songs; /**< number of songs */
vlc_mutex_t lock; /**< p_sys mutex */
/* data about audioscrobbler session */
mtime_t next_exchange; /**< when can we send data */
unsigned int i_interval; /**< waiting interval (secs)*/
/* submission of played songs */
char *psz_submit_host; /**< where to submit data */
int i_submit_port; /**< port to which submit */
char *psz_submit_file; /**< file to which submit */
/* submission of playing song */
#if 0 //NOT USED
char *psz_nowp_host; /**< where to submit data */
int i_nowp_port; /**< port to which submit */
char *psz_nowp_file; /**< file to which submit */
#endif
bool b_handshaked; /**< are we authenticated ? */
char psz_auth_token[33]; /**< Authentication token */
/* data about song currently playing */
audioscrobbler_song_t p_current_song; /**< song being played */
mtime_t time_pause; /**< time when vlc paused */
mtime_t time_total_pauses; /**< total time in pause */
bool b_submit; /**< do we have to submit ? */
bool b_state_cb; /**< if we registered the
* "state" callback */
bool b_meta_read; /**< if we read the song's
* metadata already */
};
static int Open ( vlc_object_t * );
static void Close ( vlc_object_t * );
static void Run ( intf_thread_t * );
static int ItemChange ( vlc_object_t *, const char *, vlc_value_t,
vlc_value_t, void * );
static int PlayingChange ( vlc_object_t *, const char *, vlc_value_t,
vlc_value_t, void * );
static void AddToQueue ( intf_thread_t * );
static int Handshake ( intf_thread_t * );
static int ReadMetaData ( intf_thread_t * );
static void DeleteSong ( audioscrobbler_song_t* );
static int ParseURL ( char *, char **, char **, int * );
static void HandleInterval ( mtime_t *, unsigned int * );
/*****************************************************************************
* Module descriptor
****************************************************************************/
#define USERNAME_TEXT N_("Username")
#define USERNAME_LONGTEXT N_("The username of your last.fm account")
#define PASSWORD_TEXT N_("Password")
#define PASSWORD_LONGTEXT N_("The password of your last.fm account")
/* This error value is used when last.fm plugin has to be unloaded. */
#define VLC_AUDIOSCROBBLER_EFATAL -69
/* last.fm client identifier */
#define CLIENT_NAME PACKAGE
#define CLIENT_VERSION VERSION
/* HTTP POST request : to submit data */
#define POST_REQUEST "POST /%s HTTP/1.1\n" \
"Accept-Encoding: identity\n" \
"Content-length: %u\n" \
"Connection: close\n" \
"Content-type: application/x-www-form-urlencoded\n" \
"Host: %s\n" \
"User-agent: VLC Media Player/%s\r\n" \
"\r\n" \
"%s\r\n" \
"\r\n"
vlc_module_begin();
set_category( CAT_INTERFACE );
set_subcategory( SUBCAT_INTERFACE_CONTROL );
set_shortname( N_( "Audioscrobbler" ) );
set_description( N_("Submission of played songs to last.fm") );
add_string( "lastfm-username", "", NULL,
USERNAME_TEXT, USERNAME_LONGTEXT, false );
add_password( "lastfm-password", "", NULL,
PASSWORD_TEXT, PASSWORD_LONGTEXT, false );
set_capability( "interface", 0 );
set_callbacks( Open, Close );
vlc_module_end();
/*****************************************************************************
* Open: initialize and create stuff
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
playlist_t *p_playlist;
intf_thread_t *p_intf = ( intf_thread_t* ) p_this;
intf_sys_t *p_sys = calloc( 1, sizeof( intf_sys_t ) );
if( !p_sys )
return VLC_ENOMEM;
p_intf->p_sys = p_sys;
vlc_mutex_init( &p_sys->lock );
p_playlist = pl_Yield( p_intf );
PL_LOCK;
var_AddCallback( p_playlist, "playlist-current", ItemChange, p_intf );
PL_UNLOCK;
pl_Release( p_intf );
p_intf->pf_run = Run;
return VLC_SUCCESS;
}
/*****************************************************************************
* Close: destroy interface stuff
*****************************************************************************/
static void Close( vlc_object_t *p_this )
{
playlist_t *p_playlist;
input_thread_t *p_input;
intf_thread_t *p_intf = ( intf_thread_t* ) p_this;
intf_sys_t *p_sys = p_intf->p_sys;
p_playlist = pl_Yield( p_intf );
if( p_playlist )
{
PL_LOCK;
var_DelCallback( p_playlist, "playlist-current", ItemChange, p_intf );
p_input = p_playlist->p_input;
if ( p_input )
{
vlc_object_yield( p_input );
if( p_sys->b_state_cb )
var_DelCallback( p_input, "state", PlayingChange, p_intf );
vlc_object_release( p_input );
}
PL_UNLOCK;
pl_Release( p_intf );
}
p_intf->b_dead = true;
/* we lock the mutex in case p_sys is being accessed from a callback */
vlc_mutex_lock ( &p_sys->lock );
int i;
for( i = 0; i < p_sys->i_songs; i++ )
DeleteSong( &p_sys->p_queue[i] );
free( p_sys->psz_submit_host );
free( p_sys->psz_submit_file );
#if 0 //NOT USED
free( p_sys->psz_nowp_host );
free( p_sys->psz_nowp_file );
#endif
vlc_mutex_unlock ( &p_sys->lock );
vlc_mutex_destroy( &p_sys->lock );
free( p_sys );
}
/*****************************************************************************
* Run : call Handshake() then submit songs
*****************************************************************************/
static void Run( intf_thread_t *p_intf )
{
char *psz_submit, *psz_submit_song, *psz_submit_tmp;
int i_net_ret;
int i_song;
uint8_t p_buffer[1024];
char *p_buffer_pos;
int i_post_socket;
intf_sys_t *p_sys = p_intf->p_sys;
/* main loop */
for( ;; )
{
bool b_wait = false;
vlc_object_lock( p_intf );
if( !vlc_object_alive( p_intf ) )
{
vlc_object_unlock( p_intf );
msg_Dbg( p_intf, "audioscrobbler is dying");
return;
}
if( mdate() < p_sys->next_exchange )
/* wait until we can resubmit, i.e. */
b_wait = vlc_object_timedwait( p_intf, p_sys->next_exchange ) == 0;
else
/* wait for data to submit */
/* we are signaled each time there is a song to submit */
vlc_object_wait( p_intf );
vlc_object_unlock( p_intf );
if( b_wait )
continue; /* holding on until next_exchange */
/* handshake if needed */
if( p_sys->b_handshaked == false )
{
msg_Dbg( p_intf, "Handshaking with last.fm ..." );
switch( Handshake( p_intf ) )
{
case VLC_ENOMEM:
return;
case VLC_ENOVAR:
/* username not set */
intf_UserFatal( p_intf, false,
_("Last.fm username not set"),
_("Please set a username or disable the "
"audioscrobbler plugin, and restart VLC.\n"
"Visit http://www.last.fm/join/ to get an account.")
);
return;
case VLC_SUCCESS:
msg_Dbg( p_intf, "Handshake successfull :)" );
p_sys->b_handshaked = true;
p_sys->i_interval = 0;
p_sys->next_exchange = mdate();
break;
case VLC_AUDIOSCROBBLER_EFATAL:
msg_Warn( p_intf, "Exiting..." );
return;
case VLC_EGENERIC:
default:
/* protocol error : we'll try later */
HandleInterval( &p_sys->next_exchange, &p_sys->i_interval );
break;
}
/* if handshake failed let's restart the loop */
if( p_sys->b_handshaked == false )
continue;
}
msg_Dbg( p_intf, "Going to submit some data..." );
if( !asprintf( &psz_submit, "s=%s", p_sys->psz_auth_token ) )
{ /* Out of memory */
return;
}
/* forge the HTTP POST request */
vlc_mutex_lock( &p_sys->lock );
audioscrobbler_song_t *p_song;
for( i_song = 0 ; i_song < p_sys->i_songs ; i_song++ )
{
p_song = &p_sys->p_queue[i_song];
if( !asprintf( &psz_submit_song,
"&a%%5B%d%%5D=%s&t%%5B%d%%5D=%s"
"&i%%5B%d%%5D=%ju&o%%5B%d%%5D=P&r%%5B%d%%5D="
"&l%%5B%d%%5D=%d&b%%5B%d%%5D=%s"
"&n%%5B%d%%5D=%s&m%%5B%d%%5D=%s",
i_song, p_song->psz_a, i_song, p_song->psz_t,
i_song, (uintmax_t)p_song->date, i_song, i_song,
i_song, p_song->i_l, i_song, p_song->psz_b,
i_song, p_song->psz_n, i_song, p_song->psz_m
) )
{ /* Out of memory */
vlc_mutex_unlock( &p_sys->lock );
return;
}
psz_submit_tmp = psz_submit;
if( !asprintf( &psz_submit, "%s%s",
psz_submit_tmp, psz_submit_song ) )
{ /* Out of memory */
free( psz_submit_tmp );
free( psz_submit_song );
vlc_mutex_unlock( &p_sys->lock );
return;
}
free( psz_submit_song );
free( psz_submit_tmp );
}
vlc_mutex_unlock( &p_sys->lock );
i_post_socket = net_ConnectTCP( p_intf,
p_sys->psz_submit_host, p_sys->i_submit_port );
if ( i_post_socket == -1 )
{
/* If connection fails, we assume we must handshake again */
HandleInterval( &p_sys->next_exchange, &p_sys->i_interval );
p_sys->b_handshaked = false;
free( psz_submit );
continue;
}
/* we transmit the data */
i_net_ret = net_Printf(
VLC_OBJECT( p_intf ), i_post_socket, NULL,
POST_REQUEST, p_sys->psz_submit_file,
(unsigned)strlen( psz_submit ), p_sys->psz_submit_file,
VERSION, psz_submit
);
free( psz_submit );
if ( i_net_ret == -1 )
{
/* If connection fails, we assume we must handshake again */
HandleInterval( &p_sys->next_exchange, &p_sys->i_interval );
p_sys->b_handshaked = false;
continue;
}
i_net_ret = net_Read( p_intf, i_post_socket, NULL,
p_buffer, 1023, false );
if ( i_net_ret <= 0 )
{
/* if we get no answer, something went wrong : try again */
continue;
}
net_Close( i_post_socket );
p_buffer[i_net_ret] = '\0';
p_buffer_pos = strstr( ( char * ) p_buffer, "FAILED" );
if ( p_buffer_pos )
{
msg_Warn( p_intf, "%s", p_buffer_pos );
HandleInterval( &p_sys->next_exchange, &p_sys->i_interval );
continue;
}
p_buffer_pos = strstr( ( char * ) p_buffer, "BADSESSION" );
if ( p_buffer_pos )
{
msg_Err( p_intf, "Authentication failed (BADSESSION), are you connected to last.fm with another program ?" );
p_sys->b_handshaked = false;
HandleInterval( &p_sys->next_exchange, &p_sys->i_interval );
continue;
}
p_buffer_pos = strstr( ( char * ) p_buffer, "OK" );
if ( p_buffer_pos )
{
int i;
for( i = 0; i < p_sys->i_songs; i++ )
DeleteSong( &p_sys->p_queue[i] );
p_sys->i_songs = 0;
p_sys->i_interval = 0;
p_sys->next_exchange = mdate();
msg_Dbg( p_intf, "Submission successful!" );
}
else
{
msg_Err( p_intf, "Authentication failed, handshaking again (%s)",
p_buffer );
p_sys->b_handshaked = false;
HandleInterval( &p_sys->next_exchange, &p_sys->i_interval );
continue;
}
}
}
/*****************************************************************************
* PlayingChange: Playing status change callback
*****************************************************************************/
static int PlayingChange( vlc_object_t *p_this, const char *psz_var,
vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
intf_thread_t *p_intf = ( intf_thread_t* ) p_data;
intf_sys_t *p_sys = p_intf->p_sys;
VLC_UNUSED( p_this ); VLC_UNUSED( psz_var );
if( p_intf->b_dead )
return VLC_SUCCESS;
if( p_sys->b_meta_read == false && newval.i_int >= PLAYING_S )
{
ReadMetaData( p_intf );
return VLC_SUCCESS;
}
if( newval.i_int >= END_S )
AddToQueue( p_intf );
else if( oldval.i_int == PLAYING_S && newval.i_int == PAUSE_S )
p_sys->time_pause = mdate();
else if( oldval.i_int == PAUSE_S && newval.i_int == PLAYING_S )
p_sys->time_total_pauses += ( mdate() - p_sys->time_pause );
return VLC_SUCCESS;
}
/*****************************************************************************
* ItemChange: Playlist item change callback
*****************************************************************************/
static int ItemChange( vlc_object_t *p_this, const char *psz_var,
vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
playlist_t *p_playlist;
input_thread_t *p_input;
intf_thread_t *p_intf = ( intf_thread_t* ) p_data;
intf_sys_t *p_sys = p_intf->p_sys;
input_item_t *p_item;
vlc_value_t video_val;
VLC_UNUSED( p_this ); VLC_UNUSED( psz_var );
VLC_UNUSED( oldval ); VLC_UNUSED( newval );
if( p_intf->b_dead )
return VLC_SUCCESS;
p_sys->b_state_cb = false;
p_sys->b_meta_read = false;
p_sys->b_submit = false;
p_playlist = pl_Yield( p_intf );
PL_LOCK;
p_input = p_playlist->p_input;
if( !p_input || p_input->b_dead )
{
PL_UNLOCK;
pl_Release( p_intf );
return VLC_SUCCESS;
}
vlc_object_yield( p_input );
PL_UNLOCK;
pl_Release( p_intf );
p_item = input_GetItem( p_input );
if( !p_item )
{
vlc_object_release( p_input );
return VLC_SUCCESS;
}
var_Change( p_input, "video-es", VLC_VAR_CHOICESCOUNT, &video_val, NULL );
if( ( video_val.i_int > 0 ) || p_item->i_type == ITEM_TYPE_NET )
{
msg_Dbg( p_this, "Not an audio local file, not submitting");
vlc_object_release( p_input );
return VLC_SUCCESS;
}
p_sys->time_total_pauses = 0;
time( &p_sys->p_current_song.date ); /* to be sent to last.fm */
p_sys->p_current_song.i_start = mdate(); /* only used locally */
var_AddCallback( p_input, "state", PlayingChange, p_intf );
p_sys->b_state_cb = true;
if( input_item_IsPreparsed( p_item ) )
ReadMetaData( p_intf );
/* if the input item was not preparsed, we'll do it in PlayingChange()
* callback, when "state" == PLAYING_S */
vlc_object_release( p_input );
return VLC_SUCCESS;
}
/*****************************************************************************
* AddToQueue: Add the played song to the queue to be submitted
*****************************************************************************/
static void AddToQueue ( intf_thread_t *p_this )
{
mtime_t played_time;
intf_sys_t *p_sys = p_this->p_sys;
vlc_mutex_lock( &p_sys->lock );
if( !p_sys->b_submit )
goto end;
/* wait for the user to listen enough before submitting */
played_time = mdate() - p_sys->p_current_song.i_start -
p_sys->time_total_pauses;
played_time /= 1000000; /* µs → s */
if( ( played_time < 240 ) &&
( played_time < ( p_sys->p_current_song.i_l / 2 ) ) )
{
msg_Dbg( p_this, "Song not listened long enough, not submitting" );
goto end;
}
if( p_sys->p_current_song.i_l < 30 )
{
msg_Dbg( p_this, "Song too short (< 30s), not submitting" );
goto end;
}
if( !p_sys->p_current_song.psz_a || !*p_sys->p_current_song.psz_a ||
!p_sys->p_current_song.psz_t || !*p_sys->p_current_song.psz_t )
{
msg_Dbg( p_this, "Missing artist or title, not submitting" );
/*XXX*/ msg_Dbg( p_this, "%s %s", p_sys->p_current_song.psz_a, p_sys->p_current_song.psz_t );
goto end;
}
if( p_sys->i_songs >= QUEUE_MAX )
{
msg_Warn( p_this, "Submission queue is full, not submitting" );
goto end;
}
msg_Dbg( p_this, "Song will be submitted." );
#define QUEUE_COPY( a ) \
p_sys->p_queue[p_sys->i_songs].a = p_sys->p_current_song.a
#define QUEUE_COPY_NULL( a ) \
QUEUE_COPY( a ); \
p_sys->p_current_song.a = NULL
QUEUE_COPY( i_l );
QUEUE_COPY_NULL( psz_n );
QUEUE_COPY_NULL( psz_a );
QUEUE_COPY_NULL( psz_t );
QUEUE_COPY_NULL( psz_b );
QUEUE_COPY_NULL( psz_m );
QUEUE_COPY( date );
#undef QUEUE_COPY_NULL
#undef QUEUE_COPY
p_sys->i_songs++;
/* signal the main loop we have something to submit */
vlc_object_signal( VLC_OBJECT( p_this ) );
end:
DeleteSong( &p_sys->p_current_song );
p_sys->b_submit = false;
vlc_mutex_unlock( &p_sys->lock );
}
/*****************************************************************************
* ParseURL : Split an http:// URL into host, file, and port
*
* Example: "62.216.251.205:80/protocol_1.2"
* will be split into "62.216.251.205", 80, "protocol_1.2"
*
* psz_url will be freed before returning
* *psz_file & *psz_host will be freed before use
*
* Return value:
* VLC_ENOMEM Out Of Memory
* VLC_EGENERIC Invalid url provided
* VLC_SUCCESS Success
*****************************************************************************/
static int ParseURL( char *psz_url, char **psz_host, char **psz_file,
int *i_port )
{
int i_pos;
int i_len = strlen( psz_url );
FREENULL( *psz_host );
FREENULL( *psz_file );
i_pos = strcspn( psz_url, ":" );
if( i_pos == i_len )
return VLC_EGENERIC;
*psz_host = strndup( psz_url, i_pos );
if( !*psz_host )
return VLC_ENOMEM;
i_pos++; /* skip the ':' */
*i_port = atoi( psz_url + i_pos );
if( *i_port <= 0 )
{
FREENULL( *psz_host );
return VLC_EGENERIC;
}
i_pos = strcspn( psz_url, "/" );
if( i_pos == i_len )
return VLC_EGENERIC;
i_pos++; /* skip the '/' */
*psz_file = strdup( psz_url + i_pos );
if( !*psz_file )
{
FREENULL( *psz_host );
return VLC_ENOMEM;
}
free( psz_url );
return VLC_SUCCESS;
}
/*****************************************************************************
* Handshake : Init audioscrobbler connection
*****************************************************************************/
static int Handshake( intf_thread_t *p_this )
{
char *psz_username, *psz_password;
time_t timestamp;
char psz_timestamp[21];
struct md5_s p_struct_md5;
stream_t *p_stream;
char *psz_handshake_url;
uint8_t p_buffer[1024];
char *p_buffer_pos;
int i_ret;
char *psz_url;
intf_thread_t *p_intf = ( intf_thread_t* ) p_this;
intf_sys_t *p_sys = p_this->p_sys;
psz_username = config_GetPsz( p_this, "lastfm-username" );
if( !psz_username )
return VLC_ENOMEM;
psz_password = config_GetPsz( p_this, "lastfm-password" );
if( !psz_password )
{
free( psz_username );
return VLC_ENOMEM;
}
/* username or password have not been setup */
if ( !*psz_username || !*psz_password )
{
free( psz_username );
free( psz_password );
return VLC_ENOVAR;
}
time( &timestamp );
/* generates a md5 hash of the password */
InitMD5( &p_struct_md5 );
AddMD5( &p_struct_md5, ( uint8_t* ) psz_password, strlen( psz_password ) );
EndMD5( &p_struct_md5 );
free( psz_password );
char *psz_password_md5 = psz_md5_hash( &p_struct_md5 );
if( !psz_password_md5 )
{
free( psz_username );
return VLC_ENOMEM;
}
snprintf( psz_timestamp, sizeof( psz_timestamp ), "%"PRIu64,
(uint64_t)timestamp );
/* generates a md5 hash of :
* - md5 hash of the password, plus
* - timestamp in clear text
*/
InitMD5( &p_struct_md5 );
AddMD5( &p_struct_md5, ( uint8_t* ) psz_password_md5, 32 );
AddMD5( &p_struct_md5, ( uint8_t* ) psz_timestamp, strlen( psz_timestamp ));
EndMD5( &p_struct_md5 );
free( psz_password_md5 );
char *psz_auth_token = psz_md5_hash( &p_struct_md5 );
if( !psz_auth_token )
{
free( psz_username );
return VLC_ENOMEM;
}
strncpy( p_sys->psz_auth_token, psz_auth_token, 33 );
free( psz_auth_token );
if( !asprintf( &psz_handshake_url,
"http://post.audioscrobbler.com/?hs=true&p=1.2&c=%s&v=%s&u=%s&t=%s&a=%s",
CLIENT_NAME, CLIENT_VERSION, psz_username, psz_timestamp,
p_sys->psz_auth_token ) )
{
free( psz_username );
return VLC_ENOMEM;
}
free( psz_username );
/* send the http handshake request */
p_stream = stream_UrlNew( p_intf, psz_handshake_url );
free( psz_handshake_url );
if( !p_stream )
return VLC_EGENERIC;
/* read answer */
i_ret = stream_Read( p_stream, p_buffer, 1023 );
if( i_ret == 0 )
{
stream_Delete( p_stream );
return VLC_EGENERIC;
}
p_buffer[i_ret] = '\0';
stream_Delete( p_stream );
p_buffer_pos = strstr( ( char* ) p_buffer, "FAILED " );
if ( p_buffer_pos )
{
/* handshake request failed, sorry */
msg_Err( p_this, "last.fm handshake failed: %s", p_buffer_pos + 7 );
return VLC_EGENERIC;
}
p_buffer_pos = strstr( ( char* ) p_buffer, "BADAUTH" );
if ( p_buffer_pos )
{
/* authentication failed, bad username/password combination */
intf_UserFatal( p_this, false,
_("last.fm: Authentication failed"),
_("last.fm username or password is incorrect. "
"Please verify your settings and relaunch VLC." ) );
return VLC_AUDIOSCROBBLER_EFATAL;
}
p_buffer_pos = strstr( ( char* ) p_buffer, "BANNED" );
if ( p_buffer_pos )
{
/* oops, our version of vlc has been banned by last.fm servers */
msg_Err( p_intf, "This version of VLC has been banned by last.fm. "
"You should upgrade VLC, or disable the last.fm plugin." );
return VLC_AUDIOSCROBBLER_EFATAL;
}
p_buffer_pos = strstr( ( char* ) p_buffer, "BADTIME" );
if ( p_buffer_pos )
{
/* The system clock isn't good */
msg_Err( p_intf, "last.fm handshake failed because your clock is too "
"much shifted. Please correct it, and relaunch VLC." );
return VLC_AUDIOSCROBBLER_EFATAL;
}
p_buffer_pos = strstr( ( char* ) p_buffer, "OK" );
if ( !p_buffer_pos )
goto proto;
p_buffer_pos = strstr( p_buffer_pos, "\n" );
if( !p_buffer_pos || strlen( p_buffer_pos ) < 34 )
goto proto;
p_buffer_pos++; /* we skip the '\n' */
/* save the session ID */
snprintf( p_sys->psz_auth_token, 33, "%s", p_buffer_pos );
p_buffer_pos = strstr( p_buffer_pos, "http://" );
if( !p_buffer_pos || strlen( p_buffer_pos ) == 7 )
goto proto;
/* We need to read the nowplaying url */
p_buffer_pos += 7; /* we skip "http://" */
#if 0 //NOT USED
psz_url = strndup( p_buffer_pos, strcspn( p_buffer_pos, "\n" ) );
if( !psz_url )
goto oom;
switch( ParseURL( psz_url, &p_sys->psz_nowp_host,
&p_sys->psz_nowp_file, &p_sys->i_nowp_port ) )
{
case VLC_ENOMEM:
goto oom;
case VLC_EGENERIC:
goto proto;
case VLC_SUCCESS:
default:
break;
}
#endif
p_buffer_pos = strstr( p_buffer_pos, "http://" );
if( !p_buffer_pos || strlen( p_buffer_pos ) == 7 )
goto proto;
/* We need to read the submission url */
p_buffer_pos += 7; /* we skip "http://" */
psz_url = strndup( p_buffer_pos, strcspn( p_buffer_pos, "\n" ) );
if( !psz_url )
goto oom;
switch( ParseURL( psz_url, &p_sys->psz_submit_host,
&p_sys->psz_submit_file, &p_sys->i_submit_port ) )
{
case VLC_ENOMEM:
goto oom;
case VLC_EGENERIC:
goto proto;
case VLC_SUCCESS:
default:
break;
}
return VLC_SUCCESS;
oom:
return VLC_ENOMEM;
proto:
msg_Err( p_intf, "Handshake: can't recognize server protocol" );
return VLC_EGENERIC;
}
/*****************************************************************************
* DeleteSong : Delete the char pointers in a song
*****************************************************************************/
static void DeleteSong( audioscrobbler_song_t* p_song )
{
FREENULL( p_song->psz_a );
FREENULL( p_song->psz_b );
FREENULL( p_song->psz_t );
FREENULL( p_song->psz_m );
FREENULL( p_song->psz_n );
}
/*****************************************************************************
* ReadMetaData : Read meta data when parsed by vlc
*****************************************************************************/
static int ReadMetaData( intf_thread_t *p_this )
{
playlist_t *p_playlist;
input_thread_t *p_input;
input_item_t *p_item;
intf_sys_t *p_sys = p_this->p_sys;
p_playlist = pl_Yield( p_this );
PL_LOCK;
p_input = p_playlist->p_input;
if( !p_input )
{
PL_UNLOCK;
pl_Release( p_this );
return( VLC_SUCCESS );
}
vlc_object_yield( p_input );
PL_UNLOCK;
pl_Release( p_this );
p_item = input_GetItem( p_input );
if( !p_item )
return VLC_SUCCESS;
char *psz_meta;
#define ALLOC_ITEM_META( a, b ) \
psz_meta = input_item_Get##b( p_item ); \
if( psz_meta && *psz_meta ) \
{ \
a = encode_URI_component( psz_meta ); \
if( !a ) \
{ \
free( psz_meta ); \
return VLC_ENOMEM; \
} \
}
vlc_mutex_lock( &p_sys->lock );
p_sys->b_meta_read = true;
ALLOC_ITEM_META( p_sys->p_current_song.psz_a, Artist )
else
{
vlc_mutex_unlock( &p_sys->lock );
msg_Dbg( p_this, "No artist.." );
vlc_object_release( p_input );
free( psz_meta );
return VLC_EGENERIC;
}
free( psz_meta );
ALLOC_ITEM_META( p_sys->p_current_song.psz_t, Title )
else
{
vlc_mutex_unlock( &p_sys->lock );
msg_Dbg( p_this, "No track name.." );
vlc_object_release( p_input );
free( p_sys->p_current_song.psz_a );
free( psz_meta );
return VLC_EGENERIC;
}
free( psz_meta );
/* Now we have read the mandatory meta data, so we can submit that info */
p_sys->b_submit = true;
ALLOC_ITEM_META( p_sys->p_current_song.psz_b, Album )
else
p_sys->p_current_song.psz_b = calloc( 1, 1 );
free( psz_meta );
ALLOC_ITEM_META( p_sys->p_current_song.psz_m, TrackID )
else
p_sys->p_current_song.psz_m = calloc( 1, 1 );
free( psz_meta );
p_sys->p_current_song.i_l = input_item_GetDuration( p_item ) / 1000000;
ALLOC_ITEM_META( p_sys->p_current_song.psz_n, TrackNum )
else
p_sys->p_current_song.psz_n = calloc( 1, 1 );
free( psz_meta );
#undef ALLOC_ITEM_META
msg_Dbg( p_this, "Meta data registered" );
vlc_mutex_unlock( &p_sys->lock );
vlc_object_release( p_input );
return VLC_SUCCESS;
}
static void HandleInterval( mtime_t *next, unsigned int *i_interval )
{
if( *i_interval == 0 )
{
/* first interval is 1 minute */
*i_interval = 1;
}
else
{
/* else we double the previous interval, up to 120 minutes */
*i_interval <<= 1;
if( *i_interval > 120 )
*i_interval = 120;
}
*next = mdate() + ( *i_interval * 1000000 * 60 );
}