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vlc/modules/misc/audioscrobbler.c

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/*****************************************************************************
* audioscrobbler.c : audioscrobbler submission plugin
*****************************************************************************
* Copyright © 2006-2011 the VideoLAN team
*
* Author: Rafaël Carré <funman at videolanorg>
* Ilkka Ollakka <ileoo at videolan org>
*
* 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.
*****************************************************************************/
/* Last.fm Submissions protocol version: 1.2
* http://www.last.fm/api/submissions
*
* TODO: Update to new API? http://www.last.fm/api/scrobbling
*/
/*****************************************************************************
* Preamble
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <assert.h>
#include <time.h>
#define VLC_MODULE_LICENSE VLC_LICENSE_GPL_2_PLUS
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_interface.h>
#include <vlc_input_item.h>
#include <vlc_dialog.h>
#include <vlc_meta.h>
#include <vlc_strings.h>
#include <vlc_hash.h>
#include <vlc_memstream.h>
#include <vlc_stream.h>
#include <vlc_url.h>
#include <vlc_tls.h>
#include <vlc_player.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 */
vlc_tick_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_playlist_t *playlist;
struct vlc_playlist_listener_id *playlist_listener;
struct vlc_player_listener_id *player_listener;
vlc_mutex_t lock; /**< p_sys mutex */
vlc_cond_t wait; /**< song to submit event */
vlc_sem_t dead;
vlc_thread_t thread; /**< thread to submit song */
/* submission of played songs */
vlc_url_t p_submit_url; /**< where to submit data */
/* submission of playing song */
vlc_url_t p_nowp_url; /**< where to submit data */
char psz_auth_token[33]; /**< Authentication token */
/* data about song currently playing */
audioscrobbler_song_t p_current_song; /**< song being played */
vlc_tick_t time_pause; /**< time when vlc paused */
vlc_tick_t time_total_pauses; /**< total time in pause */
bool b_submit_nowp; /**< do we have to submit ? */
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 (void *);
/*****************************************************************************
* 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")
#define URL_TEXT N_("Scrobbler URL")
#define URL_LONGTEXT N_("The URL set for an alternative scrobbler engine")
/* 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
vlc_module_begin ()
set_subcategory(SUBCAT_INTERFACE_CONTROL)
set_shortname(N_("Audioscrobbler"))
set_description(N_("Submission of played songs to last.fm"))
add_string("lastfm-username", "",
USERNAME_TEXT, USERNAME_LONGTEXT)
add_password("lastfm-password", "", PASSWORD_TEXT, PASSWORD_LONGTEXT)
add_string("scrobbler-url", "post.audioscrobbler.com",
URL_TEXT, URL_LONGTEXT)
set_capability("interface", 0)
set_callbacks(Open, Close)
vlc_module_end ()
/*****************************************************************************
* 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 void ReadMetaData(intf_thread_t *p_this)
{
intf_sys_t *p_sys = p_this->p_sys;
vlc_player_t *player = vlc_playlist_GetPlayer(p_sys->playlist);
input_item_t *item = vlc_player_GetCurrentMedia(player);
if (item == NULL)
return;
#define ALLOC_ITEM_META(a, b) do { \
char *psz_meta = input_item_Get##b(item); \
if (psz_meta && *psz_meta) \
a = vlc_uri_encode(psz_meta); \
free(psz_meta); \
} while (0)
vlc_mutex_lock(&p_sys->lock);
p_sys->b_meta_read = true;
ALLOC_ITEM_META(p_sys->p_current_song.psz_a, Artist);
if (!p_sys->p_current_song.psz_a)
{
msg_Dbg(p_this, "No artist..");
DeleteSong(&p_sys->p_current_song);
goto end;
}
ALLOC_ITEM_META(p_sys->p_current_song.psz_t, Title);
if (!p_sys->p_current_song.psz_t)
{
msg_Dbg(p_this, "No track name..");
DeleteSong(&p_sys->p_current_song);
goto end;
}
/* Now we have read the mandatory meta data, so we can submit that info */
p_sys->b_submit_nowp = true;
ALLOC_ITEM_META(p_sys->p_current_song.psz_b, Album);
ALLOC_ITEM_META(p_sys->p_current_song.psz_m, TrackID);
ALLOC_ITEM_META(p_sys->p_current_song.psz_n, TrackNum);
p_sys->p_current_song.i_l = SEC_FROM_VLC_TICK(input_item_GetDuration(item));
#undef ALLOC_ITEM_META
msg_Dbg(p_this, "Meta data registered");
vlc_cond_signal(&p_sys->wait);
end:
vlc_mutex_unlock(&p_sys->lock);
}
/*****************************************************************************
* AddToQueue: Add the played song to the queue to be submitted
*****************************************************************************/
static void AddToQueue (intf_thread_t *p_this)
{
int64_t played_time;
intf_sys_t *p_sys = p_this->p_sys;
vlc_mutex_lock(&p_sys->lock);
/* Check that we have the mandatory meta data */
if (!p_sys->p_current_song.psz_t || !p_sys->p_current_song.psz_a)
goto end;
/* wait for the user to listen enough before submitting */
played_time = SEC_FROM_VLC_TICK(vlc_tick_now() - p_sys->p_current_song.i_start -
p_sys->time_total_pauses);
/*HACK: it seam that the preparsing sometime fail,
so use the playing time as the song length */
if (p_sys->p_current_song.i_l == 0)
p_sys->p_current_song.i_l = played_time;
/* Don't send song shorter than 30s */
if (p_sys->p_current_song.i_l < 30)
{
msg_Dbg(p_this, "Song too short (< 30s), not submitting");
goto end;
}
/* Send if the user had listen more than 240s OR half the track length */
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;
}
/* Check that all meta are present */
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");
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_cond_signal(&p_sys->wait);
end:
DeleteSong(&p_sys->p_current_song);
vlc_mutex_unlock(&p_sys->lock);
}
static void player_on_state_changed(vlc_player_t *player,
enum vlc_player_state state, void *data)
{
intf_thread_t *intf = data;
intf_sys_t *sys = intf->p_sys;
if (vlc_player_GetVideoTrackCount(player))
{
msg_Dbg(intf, "Not an audio-only input, not submitting");
return;
}
if (!sys->b_meta_read && state >= VLC_PLAYER_STATE_PLAYING)
{
ReadMetaData(intf);
return;
}
switch (state)
{
case VLC_PLAYER_STATE_STOPPED:
AddToQueue(intf);
break;
case VLC_PLAYER_STATE_PAUSED:
sys->time_pause = vlc_tick_now();
break;
case VLC_PLAYER_STATE_PLAYING:
if (sys->time_pause > 0)
{
sys->time_total_pauses += vlc_tick_now() - sys->time_pause;
sys->time_pause = 0;
}
break;
default:
break;
}
}
/*****************************************************************************
* ItemChange: Playlist item change callback
*****************************************************************************/
static void playlist_on_current_index_changed(vlc_playlist_t *playlist,
ssize_t index, void *userdata)
{
VLC_UNUSED(index);
intf_thread_t *intf = userdata;
intf_sys_t *sys = intf->p_sys;
sys->b_meta_read = false;
vlc_player_t *player = vlc_playlist_GetPlayer(playlist);
input_item_t *item = vlc_player_GetCurrentMedia(player);
if (!item)
return;
if (vlc_player_GetVideoTrackCount(player))
{
msg_Dbg(intf, "Not an audio-only input, not submitting");
return;
}
sys->time_total_pauses = 0;
time(&sys->p_current_song.date); /* to be sent to last.fm */
sys->p_current_song.i_start = vlc_tick_now(); /* only used locally */
if (input_item_IsPreparsed(item))
ReadMetaData(intf);
/* if the input item was not preparsed, we'll do it in player_on_state_changed()
* callback, when "state" == VLC_PLAYER_STATE_PLAYING */
}
/*****************************************************************************
* Open: initialize and create stuff
*****************************************************************************/
static int Open(vlc_object_t *p_this)
{
intf_thread_t *p_intf = (intf_thread_t*) p_this;
intf_sys_t *p_sys = calloc(1, sizeof(intf_sys_t));
int retval = VLC_EGENERIC;
if (!p_sys)
return VLC_ENOMEM;
p_intf->p_sys = p_sys;
static struct vlc_playlist_callbacks const playlist_cbs =
{
.on_current_index_changed = playlist_on_current_index_changed,
};
static struct vlc_player_cbs const player_cbs =
{
.on_state_changed = player_on_state_changed,
};
vlc_playlist_t *playlist = p_sys->playlist = vlc_intf_GetMainPlaylist(p_intf);
vlc_player_t *player = vlc_playlist_GetPlayer(playlist);
vlc_playlist_Lock(playlist);
p_sys->playlist_listener =
vlc_playlist_AddListener(playlist, &playlist_cbs, p_intf, false);
if (!p_sys->playlist_listener)
{
vlc_playlist_Unlock(playlist);
goto fail;
}
p_sys->player_listener =
vlc_player_AddListener(player, &player_cbs, p_intf);
vlc_playlist_Unlock(playlist);
if (!p_sys->player_listener)
goto fail;
vlc_mutex_init(&p_sys->lock);
vlc_cond_init(&p_sys->wait);
vlc_sem_init(&p_sys->dead, 0);
if (vlc_clone(&p_sys->thread, Run, p_intf))
{
retval = VLC_ENOMEM;
goto fail;
}
retval = VLC_SUCCESS;
goto ret;
fail:
if (p_sys->playlist_listener)
{
vlc_playlist_Lock(playlist);
if (p_sys->player_listener)
vlc_player_RemoveListener(player, p_sys->player_listener);
vlc_playlist_RemoveListener(playlist, p_sys->playlist_listener);
vlc_playlist_Unlock(playlist);
}
free(p_sys);
ret:
return retval;
}
/*****************************************************************************
* Close: destroy interface stuff
*****************************************************************************/
static void Close(vlc_object_t *p_this)
{
intf_thread_t *p_intf = (intf_thread_t*) p_this;
intf_sys_t *p_sys = p_intf->p_sys;
vlc_playlist_t *playlist = p_sys->playlist;
vlc_mutex_lock(&p_sys->lock);
vlc_sem_post(&p_sys->dead);
vlc_cond_signal(&p_sys->wait);
vlc_mutex_unlock(&p_sys->lock);
vlc_join(p_sys->thread, NULL);
int i;
for (i = 0; i < p_sys->i_songs; i++)
DeleteSong(&p_sys->p_queue[i]);
vlc_UrlClean(&p_sys->p_submit_url);
vlc_UrlClean(&p_sys->p_nowp_url);
vlc_playlist_Lock(playlist);
vlc_player_RemoveListener(
vlc_playlist_GetPlayer(playlist), p_sys->player_listener);
vlc_playlist_RemoveListener(playlist, p_sys->playlist_listener);
vlc_playlist_Unlock(playlist);
free(p_sys);
}
/*****************************************************************************
* Handshake : Init audioscrobbler connection
*****************************************************************************/
static int Handshake(intf_thread_t *p_this)
{
char *psz_username, *psz_password;
char *psz_scrobbler_url;
time_t timestamp;
char psz_timestamp[21];
vlc_hash_md5_t 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 = var_InheritString(p_this, "lastfm-username");
psz_password = var_InheritString(p_this, "lastfm-password");
/* username or password have not been setup */
if (EMPTY_STR(psz_username) || EMPTY_STR(psz_password))
{
free(psz_username);
free(psz_password);
return VLC_EINVAL;
}
time(&timestamp);
/* generates a md5 hash of the password */
vlc_hash_md5_Init(&struct_md5);
vlc_hash_md5_Update(&struct_md5, psz_password, strlen(psz_password));
free(psz_password);
char psz_password_md5[VLC_HASH_MD5_DIGEST_HEX_SIZE];
vlc_hash_FinishHex(&struct_md5, psz_password_md5);
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
*/
vlc_hash_md5_Init(&struct_md5);
vlc_hash_md5_Update(&struct_md5, psz_password_md5, sizeof(psz_password_md5) - 1);
vlc_hash_md5_Update(&struct_md5, psz_timestamp, strlen(psz_timestamp));
char psz_auth_token[VLC_HASH_MD5_DIGEST_HEX_SIZE];
vlc_hash_FinishHex(&struct_md5, psz_auth_token);
psz_scrobbler_url = var_InheritString(p_this, "scrobbler-url");
if (!psz_scrobbler_url)
{
free(psz_username);
return VLC_ENOMEM;
}
i_ret = asprintf(&psz_handshake_url,
"http://%s/?hs=true&p=1.2&c="CLIENT_NAME"&v="CLIENT_VERSION"&u=%s&t=%s&a=%s"
, psz_scrobbler_url, psz_username, psz_timestamp, psz_auth_token);
free(psz_scrobbler_url);
free(psz_username);
if (i_ret == -1)
return VLC_ENOMEM;
/* send the http handshake request */
p_stream = vlc_stream_NewURL(p_intf, psz_handshake_url);
free(psz_handshake_url);
if (!p_stream)
return VLC_EGENERIC;
/* read answer */
i_ret = vlc_stream_Read(p_stream, p_buffer, sizeof(p_buffer) - 1);
if (i_ret <= 0)
{
vlc_stream_Delete(p_stream);
return VLC_EGENERIC;
}
p_buffer[i_ret] = '\0';
vlc_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;
}
if (strstr((char*) p_buffer, "BADAUTH"))
{
/* authentication failed, bad username/password combination */
vlc_dialog_display_error(p_this,
_("last.fm: Authentication failed"),
"%s", _("last.fm username or password is incorrect. "
"Please verify your settings and relaunch VLC."));
return VLC_AUDIOSCROBBLER_EFATAL;
}
if (strstr((char*) p_buffer, "BANNED"))
{
/* 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;
}
if (strstr((char*) p_buffer, "BADTIME"))
{
/* 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 || strnlen(p_buffer_pos, 33) < 33)
goto proto;
p_buffer_pos++; /* we skip the '\n' */
/* save the session ID */
memcpy(p_sys->psz_auth_token, p_buffer_pos, 32);
p_sys->psz_auth_token[32] = '\0';
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 */
psz_url = strndup(p_buffer_pos, strcspn(p_buffer_pos, "\n"));
if (!psz_url)
goto oom;
vlc_UrlParse(&p_sys->p_nowp_url, psz_url);
free(psz_url);
if (p_sys->p_nowp_url.psz_host == NULL ||
p_sys->p_nowp_url.i_port == 0)
{
vlc_UrlClean(&p_sys->p_nowp_url);
goto proto;
}
p_buffer_pos += strcspn(p_buffer_pos, "\n");
p_buffer_pos = strstr(p_buffer_pos, "http://");
if (!p_buffer_pos || strlen(p_buffer_pos) == 7)
{
vlc_UrlClean(&p_sys->p_nowp_url);
goto proto;
}
/* We need to read the submission url */
psz_url = strndup(p_buffer_pos, strcspn(p_buffer_pos, "\n"));
if (!psz_url)
{
vlc_UrlClean(&p_sys->p_nowp_url);
goto oom;
}
/* parse the submission url */
vlc_UrlParse(&p_sys->p_submit_url, psz_url);
free(psz_url);
if (p_sys->p_submit_url.psz_host == NULL ||
p_sys->p_submit_url.i_port == 0)
{
vlc_UrlClean(&p_sys->p_nowp_url);
vlc_UrlClean(&p_sys->p_submit_url);
goto proto;
}
return VLC_SUCCESS;
oom:
return VLC_ENOMEM;
proto:
msg_Err(p_intf, "Handshake: can't recognize server protocol");
return VLC_EGENERIC;
}
static void HandleInterval(vlc_tick_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 = vlc_tick_now() + (*i_interval * VLC_TICK_FROM_SEC(60));
}
/*****************************************************************************
* Run : call Handshake() then submit songs
*****************************************************************************/
static void *Run(void *data)
{
vlc_thread_set_name("vlc-scrobbler");
intf_thread_t *p_intf = data;
uint8_t p_buffer[1024];
bool b_handshaked = false;
bool b_nowp_submission_ongoing = false;
/* data about audioscrobbler session */
vlc_tick_t next_exchange = VLC_TICK_INVALID; /**< when can we send data */
unsigned int i_interval = 0; /**< waiting interval (secs)*/
intf_sys_t *p_sys = p_intf->p_sys;
/* main loop */
for (;;)
{
if (next_exchange != VLC_TICK_INVALID
&& vlc_sem_timedwait(&p_sys->dead, next_exchange) == 0)
break;
vlc_mutex_lock(&p_sys->lock);
while (p_sys->i_songs == 0 && p_sys->b_submit_nowp == false)
{
if (vlc_sem_trywait(&p_sys->dead) == 0)
{
vlc_mutex_unlock(&p_sys->lock);
break;
}
vlc_cond_wait(&p_sys->wait, &p_sys->lock);
}
vlc_mutex_unlock(&p_sys->lock);
/* handshake if needed */
if (!b_handshaked)
{
msg_Dbg(p_intf, "Handshaking with last.fm ...");
switch(Handshake(p_intf))
{
case VLC_ENOMEM:
goto out;
case VLC_EINVAL:
/* username not set */
vlc_dialog_display_error(p_intf,
_("Last.fm username not set"),
"%s", _("Please set a username or disable the "
"audioscrobbler plugin, and restart VLC.\n"
"Visit https://www.last.fm/join/ to get an account."));
goto out;
case VLC_SUCCESS:
msg_Dbg(p_intf, "Handshake successful :)");
b_handshaked = true;
i_interval = 0;
next_exchange = VLC_TICK_INVALID;
break;
case VLC_AUDIOSCROBBLER_EFATAL:
msg_Warn(p_intf, "Exiting...");
goto out;
case VLC_EGENERIC:
default:
/* protocol error : we'll try later */
HandleInterval(&next_exchange, &i_interval);
break;
}
/* if handshake failed let's restart the loop */
if (!b_handshaked)
continue;
}
msg_Dbg(p_intf, "Going to submit some data...");
vlc_url_t *url;
struct vlc_memstream req, payload;
vlc_memstream_open(&payload);
vlc_memstream_printf(&payload, "s=%s", p_sys->psz_auth_token);
/* forge the HTTP POST request */
vlc_mutex_lock(&p_sys->lock);
if (p_sys->b_submit_nowp)
{
audioscrobbler_song_t *p_song = &p_sys->p_current_song;
b_nowp_submission_ongoing = true;
url = &p_sys->p_nowp_url;
vlc_memstream_printf(&payload, "&a=%s", p_song->psz_a);
vlc_memstream_printf(&payload, "&t=%s", p_song->psz_t);
vlc_memstream_puts(&payload, "&b=");
if (p_song->psz_b != NULL)
vlc_memstream_puts(&payload, p_song->psz_b);
vlc_memstream_printf(&payload, "&l=%d", p_song->i_l);
vlc_memstream_puts(&payload, "&n=");
if (p_song->psz_n != NULL)
vlc_memstream_puts(&payload, p_song->psz_n);
vlc_memstream_puts(&payload, "&m=");
if (p_song->psz_m != NULL)
vlc_memstream_puts(&payload, p_song->psz_m);
}
else
{
url = &p_sys->p_submit_url;
for (int i_song = 0 ; i_song < p_sys->i_songs ; i_song++)
{
audioscrobbler_song_t *p_song = &p_sys->p_queue[i_song];
vlc_memstream_printf(&payload, "&a%%5B%d%%5D=%s",
i_song, p_song->psz_a);
vlc_memstream_printf(&payload, "&t%%5B%d%%5D=%s",
i_song, p_song->psz_t);
vlc_memstream_printf(&payload, "&i%%5B%d%%5D=%"PRIu64,
i_song, (uint64_t)p_song->date);
vlc_memstream_printf(&payload, "&o%%5B%d%%5D=P", i_song);
vlc_memstream_printf(&payload, "&r%%5B%d%%5D=", i_song);
vlc_memstream_printf(&payload, "&l%%5B%d%%5D=%d",
i_song, p_song->i_l);
vlc_memstream_printf(&payload, "&b=%%5B%d%%5D=", i_song);
if (p_song->psz_b != NULL)
vlc_memstream_puts(&payload, p_song->psz_b);
vlc_memstream_printf(&payload, "&n=%%5B%d%%5D=", i_song);
if (p_song->psz_n != NULL)
vlc_memstream_puts(&payload, p_song->psz_n);
vlc_memstream_printf(&payload, "&m=%%5B%d%%5D=", i_song);
if (p_song->psz_m != NULL)
vlc_memstream_puts(&payload, p_song->psz_m);
}
}
vlc_mutex_unlock(&p_sys->lock);
if (vlc_memstream_close(&payload))
break;
vlc_memstream_open(&req);
vlc_memstream_printf(&req, "POST %s HTTP/1.1\r\n", url->psz_path);
vlc_memstream_printf(&req, "Host: %s\r\n", url->psz_host);
vlc_memstream_puts(&req, "User-Agent:"
" "PACKAGE_NAME"/"PACKAGE_VERSION"\r\n");
vlc_memstream_puts(&req, "Connection: close\r\n");
vlc_memstream_puts(&req, "Accept-Encoding: identity\r\n");
vlc_memstream_puts(&req, "Content-Type:"
" application/x-www-form-urlencoded\r\n");
vlc_memstream_printf(&req, "Content-Length: %zu\r\n", payload.length);
vlc_memstream_puts(&req, "\r\n");
/* Could avoid copying payload with iovec... but efforts */
vlc_memstream_write(&req, payload.ptr, payload.length);
vlc_memstream_puts(&req, "\r\n\r\n");
free(payload.ptr);
if (vlc_memstream_close(&req)) /* Out of memory */
break;
vlc_tls_t *sock = vlc_tls_SocketOpenTCP(VLC_OBJECT(p_intf),
url->psz_host, url->i_port);
if (sock == NULL)
{
/* If connection fails, we assume we must handshake again */
HandleInterval(&next_exchange, &i_interval);
b_handshaked = false;
free(req.ptr);
continue;
}
/* we transmit the data */
int i_net_ret = vlc_tls_Write(sock, req.ptr, req.length);
free(req.ptr);
if (i_net_ret == -1)
{
/* If connection fails, we assume we must handshake again */
HandleInterval(&next_exchange, &i_interval);
b_handshaked = false;
vlc_tls_Close(sock);
continue;
}
/* FIXME: this might wait forever */
/* FIXME: With TCP, you should never assume that a single read will
* return the entire response... */
i_net_ret = vlc_tls_Read(sock, p_buffer, sizeof(p_buffer) - 1, false);
vlc_tls_Close(sock);
if (i_net_ret <= 0)
{
/* if we get no answer, something went wrong : try again */
continue;
}
p_buffer[i_net_ret] = '\0';
char *failed = strstr((char *) p_buffer, "FAILED");
if (failed)
{
msg_Warn(p_intf, "%s", failed);
HandleInterval(&next_exchange, &i_interval);
continue;
}
if (strstr((char *) p_buffer, "BADSESSION"))
{
msg_Err(p_intf, "Authentication failed (BADSESSION), are you connected to last.fm with another program ?");
b_handshaked = false;
HandleInterval(&next_exchange, &i_interval);
continue;
}
if (strstr((char *) p_buffer, "OK"))
{
if (b_nowp_submission_ongoing)
{
b_nowp_submission_ongoing = false;
p_sys->b_submit_nowp = false;
}
else
{
for (int i = 0; i < p_sys->i_songs; i++)
DeleteSong(&p_sys->p_queue[i]);
p_sys->i_songs = 0;
}
i_interval = 0;
next_exchange = VLC_TICK_INVALID;
msg_Dbg(p_intf, "Submission successful!");
}
else
{
msg_Err(p_intf, "Authentication failed, handshaking again (%s)",
p_buffer);
b_handshaked = false;
HandleInterval(&next_exchange, &i_interval);
}
}
out:
return NULL;
}