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pl.c
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pl.c
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/**
* Copyright (c) 2006-2010 Spotify Ltd
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#define USER_AGENT "wiggles"
#include "pl.h"
#include <pthread.h>
#include <unistd.h>
#include <sys/time.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
sp_session *g_session;
static int notify_events;
static pthread_mutex_t notify_mutex;
static pthread_cond_t notify_cond;
static void connection_error(sp_session *session, sp_error error)
{
fprintf(stderr, "Connection to Spotify failed: %s\n",
sp_error_message(error));
}
static void logged_in(sp_session *session, sp_error error)
{
sp_user *me;
const char *display_name, *username;
int cc;
if (SP_ERROR_OK != error) {
fprintf(stderr, "failed to log in to Spotify: %s\n",
sp_error_message(error));
sp_session_release(session);
exit(4);
}
// Let us print the nice message...
me = sp_session_user(session);
display_name = (sp_user_is_loaded(me) ? sp_user_display_name(me) : sp_user_canonical_name(me));
username = sp_session_user_name (session);
cc = sp_session_user_country(session);
fprintf(stderr, "Logged in to Spotify as user %s [%s] (registered in country: %c%c)\n", username, display_name, cc >> 8, cc & 0xff);
}
static void logged_out(sp_session *session)
{
exit(0);
}
/**
* This callback is called when the session have recieved a credential
* that could be stored safely on disk
*
* @sa sp_session_callbacks#credentials_blob_updated
*/
void credentials_blob_updated(sp_session *session, const char *blob)
{
printf("blob for storage: %s\n", blob);
}
/**
* This callback is called for log messages.
*
* @sa sp_session_callbacks#log_message
*/
static void log_message(sp_session *session, const char *data)
{
fprintf(stderr,"%s",data);
}
static void SP_CALLCONV notify_main_thread(sp_session *session)
{
pthread_mutex_lock(¬ify_mutex);
notify_events = 1;
pthread_cond_signal(¬ify_cond);
pthread_mutex_unlock(¬ify_mutex);
}
static sp_session_callbacks callbacks;
int spotify_init(const char *username,const char *password)
{
sp_session_config config;
sp_error error;
sp_session *session;
const char * blob = NULL;
/// The application key is specific to each project, and allows Spotify
/// to produce statistics on how our service is used.
extern const char g_appkey[];
/// The size of the application key.
extern const size_t g_appkey_size;
// Always do this. It allows libspotify to check for
// header/library inconsistencies.
config.api_version = SPOTIFY_API_VERSION;
// The path of the directory to store the cache. This must be specified.
// Please read the documentation on preferred values.
config.cache_location = "tmp";
// The path of the directory to store the settings.
// This must be specified.
// Please read the documentation on preferred values.
config.settings_location = "tmp";
// The key of the application. They are generated by Spotify,
// and are specific to each application using libspotify.
config.application_key = g_appkey;
config.application_key_size = g_appkey_size;
// This identifies the application using some
// free-text string [1, 255] characters.
config.user_agent = USER_AGENT;
config.proxy = NULL;
config.proxy_password = NULL;
config.proxy_username = NULL;
config.ca_certs_filename = NULL;
config.device_id = NULL;
config.tracefile = NULL;
// Read about these callbacks here: http://goo.gl/qrht0
callbacks.credentials_blob_updated = credentials_blob_updated;
callbacks.logged_in = logged_in;
callbacks.logged_out = logged_out;
callbacks.connection_error = connection_error;
callbacks.notify_main_thread = notify_main_thread;
callbacks.log_message = log_message;
// Register the callbacks.
config.callbacks = &callbacks;
error = sp_session_create(&config, &session);
if (SP_ERROR_OK != error) {
fprintf(stderr, "failed to create session: %s\n",
sp_error_message(error));
return 2;
}
// Login using the credentials given on the command line.
printf("I am initializing using %s/%s\n",username,password);
error = sp_session_login(session, username, password, 1, blob);
if (SP_ERROR_OK != error) {
fprintf(stderr, "failed to login: %s\n",
sp_error_message(error));
return 3;
}
g_session = session;
return 0;
}
int main(int argc, char **argv)
{
printf("Using libspotify %s\n", sp_build_id());
int next_timeout = 0;
if(argc < 3) {
fprintf(stderr,"Usage: %s <username> <password>\n",argv[0]);
}
pthread_mutex_init(¬ify_mutex, NULL);
pthread_cond_init(¬ify_cond, NULL);
if(spotify_init(argv[1],argv[2]) != 0) {
printf("I tried username %s and password %s. And failed to init.\n",argv[1],argv[2]);
fprintf(stderr,"Spotify failed to initialize\n");
exit(-1);
}
pthread_mutex_lock(¬ify_mutex);
for (;;) {
if (next_timeout == 0) {
while(!notify_events)
pthread_cond_wait(¬ify_cond, ¬ify_mutex);
} else {
struct timespec ts;
#if _POSIX_TIMERS > 0
clock_gettime(CLOCK_REALTIME, &ts);
#else
struct timeval tv;
gettimeofday(&tv, NULL);
TIMEVAL_TO_TIMESPEC(&tv, &ts);
#endif
ts.tv_sec += next_timeout / 1000;
ts.tv_nsec += (next_timeout % 1000) * 1000000;
while(!notify_events) {
if(pthread_cond_timedwait(¬ify_cond, ¬ify_mutex, &ts))
break;
}
}
// Process libspotify events
notify_events = 0;
pthread_mutex_unlock(¬ify_mutex);
do {
sp_session_process_events(g_session, &next_timeout);
} while (next_timeout == 0);
pthread_mutex_lock(¬ify_mutex);
}
return 0;
}