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vlc/modules/misc/audioscrobbler.c
Rafaël Carré 28f90a274d audioscrobbler: clean up 
- cosmetics ( xx ) -> (xx) (look at patch with -w)
- remove useless header inclusion
- move some variables from p_sys to Run() function scope
- fix invalid asprintf() return value checks
...
2011-08-01 00:05:07 -04:00

963 lines
30 KiB
C
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/*****************************************************************************
* audioscrobbler.c : audioscrobbler submission plugin
*****************************************************************************
* Copyright © 2006-2011 the VideoLAN team
* $Id$
*
* 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.
*****************************************************************************/
/* audioscrobbler protocol version: 1.2
* http://www.audioscrobbler.net/development/protocol/
*
* TODO: "Now Playing" feature (not mandatory)
* Update to new API? http://www.lastfm.fr/api
*/
/*****************************************************************************
* Preamble
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_interface.h>
#include <vlc_dialog.h>
#include <vlc_meta.h>
#include <vlc_md5.h>
#include <vlc_stream.h>
#include <vlc_url.h>
#include <vlc_network.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 */
vlc_cond_t wait; /**< song to submit event */
/* 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
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 *);
/*****************************************************************************
* 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_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", "",
USERNAME_TEXT, USERNAME_LONGTEXT, false)
add_password("lastfm-password", "",
PASSWORD_TEXT, PASSWORD_LONGTEXT, false)
add_string("scrobbler-url", "post.audioscrobbler.com",
URL_TEXT, URL_LONGTEXT, false)
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)
{
input_thread_t *p_input;
input_item_t *p_item;
intf_sys_t *p_sys = p_this->p_sys;
p_input = playlist_CurrentInput(pl_Get(p_this));
if (!p_input)
return;
p_item = input_GetItem(p_input);
if (!p_item)
{
vlc_object_release(p_input);
return;
}
#define ALLOC_ITEM_META(a, b) do { \
char *psz_meta = input_item_Get##b(p_item); \
if (psz_meta && *psz_meta) \
a = encode_URI_component(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 = true;
ALLOC_ITEM_META(p_sys->p_current_song.psz_b, Album);
if (!p_sys->p_current_song.psz_b)
p_sys->p_current_song.psz_b = calloc(1, 1);
ALLOC_ITEM_META(p_sys->p_current_song.psz_m, TrackID);
if (!p_sys->p_current_song.psz_m)
p_sys->p_current_song.psz_m = calloc(1, 1);
p_sys->p_current_song.i_l = input_item_GetDuration(p_item) / 1000000;
ALLOC_ITEM_META(p_sys->p_current_song.psz_n, TrackNum);
if (!p_sys->p_current_song.psz_n)
p_sys->p_current_song.psz_n = calloc(1, 1);
#undef ALLOC_ITEM_META
msg_Dbg(p_this, "Meta data registered");
end:
vlc_mutex_unlock(&p_sys->lock);
vlc_object_release(p_input);
}
/*****************************************************************************
* 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 */
/*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);
p_sys->b_submit = false;
vlc_mutex_unlock(&p_sys->lock);
}
/*****************************************************************************
* 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)
{
VLC_UNUSED(oldval);
intf_thread_t *p_intf = (intf_thread_t*) p_data;
intf_sys_t *p_sys = p_intf->p_sys;
input_thread_t *p_input = (input_thread_t*)p_this;
int state;
VLC_UNUSED(psz_var);
if (newval.i_int != INPUT_EVENT_STATE) return VLC_SUCCESS;
if (var_CountChoices(p_input, "video-es"))
{
msg_Dbg(p_this, "Not an audio-only input, not submitting");
return VLC_SUCCESS;
}
state = var_GetInteger(p_input, "state");
if (!p_sys->b_meta_read && state >= PLAYING_S)
{
ReadMetaData(p_intf);
return VLC_SUCCESS;
}
if (state >= END_S)
AddToQueue(p_intf);
else if (state == PAUSE_S)
p_sys->time_pause = mdate();
else if (p_sys->time_pause > 0 && state == PLAYING_S)
{
p_sys->time_total_pauses += (mdate() - p_sys->time_pause);
p_sys->time_pause = 0;
}
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)
{
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_UNUSED(p_this); VLC_UNUSED(psz_var);
VLC_UNUSED(oldval); VLC_UNUSED(newval);
p_sys->b_state_cb = false;
p_sys->b_meta_read = false;
p_sys->b_submit = false;
p_input = playlist_CurrentInput(pl_Get(p_intf));
if (!p_input || p_input->b_dead)
return VLC_SUCCESS;
p_item = input_GetItem(p_input);
if (!p_item)
{
vlc_object_release(p_input);
return VLC_SUCCESS;
}
if (var_CountChoices(p_input, "video-es"))
{
msg_Dbg(p_this, "Not an audio-only input, 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, "intf-event", 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;
}
/*****************************************************************************
* 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));
if (!p_sys)
return VLC_ENOMEM;
p_intf->p_sys = p_sys;
vlc_mutex_init(&p_sys->lock);
vlc_cond_init(&p_sys->wait);
var_AddCallback(pl_Get(p_intf), "item-current", ItemChange, 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 = pl_Get(p_this);
input_thread_t *p_input;
intf_thread_t *p_intf = (intf_thread_t*) p_this;
intf_sys_t *p_sys = p_intf->p_sys;
var_DelCallback(p_playlist, "item-current", ItemChange, p_intf);
p_input = playlist_CurrentInput(p_playlist);
if (p_input)
{
if (p_sys->b_state_cb)
var_DelCallback(p_input, "intf-event", PlayingChange, p_intf);
vlc_object_release(p_input);
}
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_cond_destroy(&p_sys->wait);
vlc_mutex_destroy(&p_sys->lock);
free(p_sys);
}
/*****************************************************************************
* 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)
{
size_t i_pos;
size_t i_len = strlen(psz_url);
bool b_no_port = false;
FREENULL(*psz_host);
FREENULL(*psz_file);
i_pos = strcspn(psz_url, ":");
if (i_pos == i_len)
{
*i_port = 80;
i_pos = strcspn(psz_url, "/");
b_no_port = true;
}
*psz_host = strndup(psz_url, i_pos);
if (!*psz_host)
return VLC_ENOMEM;
if (!b_no_port)
{
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;
}
return VLC_SUCCESS;
}
/*****************************************************************************
* 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];
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 = var_InheritString(p_this, "lastfm-username");
if (!psz_username)
return VLC_ENOMEM;
psz_password = var_InheritString(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;
}
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 = 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, sizeof(p_buffer) - 1);
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;
}
if (strstr((char*) p_buffer, "BADAUTH"))
{
/* authentication failed, bad username/password combination */
dialog_Fatal(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 || strlen(p_buffer_pos) < 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 */
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;
int ret = ParseURL(psz_url, &p_sys->psz_submit_host,
&p_sys->psz_submit_file, &p_sys->i_submit_port);
free(psz_url);
switch(ret)
{
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;
}
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);
}
/*****************************************************************************
* Run : call Handshake() then submit songs
*****************************************************************************/
static void Run(intf_thread_t *p_intf)
{
uint8_t p_buffer[1024];
int canc = vlc_savecancel();
bool b_handshaked = false;
/* data about audioscrobbler session */
mtime_t next_exchange; /**< when can we send data */
unsigned int i_interval; /**< waiting interval (secs)*/
intf_sys_t *p_sys = p_intf->p_sys;
/* main loop */
for (;;)
{
vlc_restorecancel(canc);
vlc_mutex_lock(&p_sys->lock);
mutex_cleanup_push(&p_sys->lock);
do
vlc_cond_wait(&p_sys->wait, &p_sys->lock);
while (mdate() < next_exchange);
vlc_cleanup_run();
canc = vlc_savecancel();
/* handshake if needed */
if (!b_handshaked)
{
msg_Dbg(p_intf, "Handshaking with last.fm ...");
switch(Handshake(p_intf))
{
case VLC_ENOMEM:
return;
case VLC_ENOVAR:
/* username not set */
dialog_Fatal(p_intf,
_("Last.fm username not set"),
"%s", _("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 :)");
b_handshaked = true;
i_interval = 0;
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(&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...");
char *psz_submit;
if (asprintf(&psz_submit, "s=%s", p_sys->psz_auth_token) == -1)
return;
/* forge the HTTP POST request */
vlc_mutex_lock(&p_sys->lock);
audioscrobbler_song_t *p_song;
for (int i_song = 0 ; i_song < p_sys->i_songs ; i_song++)
{
char *psz_submit_song, *psz_submit_tmp;
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=%u"
"&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, (unsigned)p_song->date, /* HACK: %ju (uintmax_t) unsupported on Windows */
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
) == -1)
{ /* 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) == -1)
{ /* 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);
int 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(&next_exchange, &i_interval);
b_handshaked = false;
free(psz_submit);
continue;
}
/* we transmit the data */
int i_net_ret = net_Printf(p_intf, i_post_socket, NULL,
"POST /%s HTTP/1.1\n"
"Accept-Encoding: identity\n"
"Content-length: %zu\n"
"Connection: close\n"
"Content-type: application/x-www-form-urlencoded\n"
"Host: %s\n"
"User-agent: VLC media player/"VERSION"\r\n"
"\r\n"
"%s\r\n"
"\r\n",
p_sys->psz_submit_file, strlen(psz_submit),
p_sys->psz_submit_host, psz_submit
);
free(psz_submit);
if (i_net_ret == -1)
{
/* If connection fails, we assume we must handshake again */
HandleInterval(&next_exchange, &i_interval);
b_handshaked = false;
continue;
}
i_net_ret = net_Read(p_intf, i_post_socket, NULL,
p_buffer, sizeof(p_buffer) - 1, 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';
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"))
{
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 = mdate();
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);
}
}
vlc_restorecancel(canc);
}
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