%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/* vim:set softtabstop=4 shiftwidth=4 expandtab: */
/**
*
* LICENSE: GNU General Public License, version 2 (GPLv2)
* Copyright 2001 - 2014 Ampache.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License v2
* as published by the Free Software Foundation.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
class Channel extends database_object
{
public $id;
public $is_private;
public $interface;
public $port;
public $start_date;
public $pid;
public $listeners;
public $peak_listeners;
public $object_type;
public $object_id;
public $stream_type;
public $random;
public $loop;
public $bitrate;
public $name;
public $tags;
public $f_tags;
private $is_init;
private $playlist;
private $song_pos;
private $songs;
public $media;
private $media_bytes_streamed;
private $transcoder;
/**
* Constructor
*/
public function __construct($id=0)
{
if (!$id) { return true; }
/* Get the information from the db */
$info = $this->get_info($id);
// Foreach what we've got
foreach ($info as $key=>$value) {
$this->$key = $value;
}
return true;
} //constructor
public function update_start($start_date, $address, $port, $pid)
{
$sql = "UPDATE `channel` SET `start_date` = ?, `interface` = ?, `port` = ?, `pid` = ?, `listeners` = '0' WHERE `id` = ?";
Dba::write($sql, array($start_date, $address, $port, $pid, $this->id));
$this->start_date = $start_date;
$this->interface = $address;
$this->port = $port;
$this->pid = $pid;
}
public function update_listeners($listeners, $addition=false)
{
$sql = "UPDATE `channel` SET `listeners` = ? ";
$params = array($listeners);
$this->listeners = $listeners;
if ($listeners > $this->peak_listeners) {
$this->peak_listeners = $listeners;
$sql .= ", `peak_listeners` = ? ";
$params[] = $listeners;
}
if ($addition) {
$sql .= ", `connections`=`connections`+1 ";
}
$sql .= "WHERE `id` = ?";
$params[] = $this->id;
Dba::write($sql, $params);
}
public function get_genre()
{
$tags = Tag::get_object_tags('channel', $this->id);
$genre = "";
foreach ($tags as $tag) {
$genre .= $tag['name'] . ' ';
}
$genre = trim($genre);
return $genre;
}
public function delete()
{
$sql = "DELETE FROM `channel` WHERE `id` = ?";
return Dba::write($sql, array($this->id));
}
public static function get_next_port()
{
$port = 8200;
$sql = "SELECT MAX(`port`) AS `max_port` FROM `channel`";
$db_results = Dba::read($sql);
if ($results = Dba::fetch_assoc($db_results)) {
if ($results['max_port'] > 0) {
$port = $results['max_port'] + 1;
}
}
return $port;
}
public static function create($name, $description, $url, $object_type, $object_id, $interface, $port, $admin_password, $private, $max_listeners, $random, $loop, $stream_type, $bitrate)
{
if (!empty($name)) {
$sql = "INSERT INTO `channel` (`name`, `description`, `url`, `object_type`, `object_id`, `interface`, `port`, `fixed_endpoint`, `admin_password`, `is_private`, `max_listeners`, `random`, `loop`, `stream_type`, `bitrate`) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
$params = array($name, $description, $url, $object_type, $object_id, $interface, $port, (!empty($interface) && !empty($port)), $admin_password, !empty($private), $max_listeners, $random, $loop, $stream_type, $bitrate);
return Dba::write($sql, $params);
}
return false;
}
public function update($data)
{
if (isset($data['edit_tags'])) {
Tag::update_tag_list($data['edit_tags'], 'channel', $this->id);
}
$sql = "UPDATE `channel` SET `name` = ?, `description` = ?, `url` = ?, `interface` = ?, `port` = ?, `fixed_endpoint` = ?, `admin_password` = ?, `is_private` = ?, `max_listeners` = ?, `random` = ?, `loop` = ?, `stream_type` = ?, `bitrate` = ?, `object_id` = ? " .
"WHERE `id` = ?";
$params = array($data['name'], $data['description'], $data['url'], $data['interface'], $data['port'], (!empty($data['interface']) && !empty($data['port'])), $data['admin_password'], !empty($data['private']), $data['max_listeners'], $data['random'], $data['loop'], $data['stream_type'], $data['bitrate'], $data['object_id'], $this->id);
return Dba::write($sql, $params);
}
public static function format_type($type)
{
switch ($type) {
case 'playlist':
$ftype = $type;
break;
default:
$ftype = '';
break;
}
return $ftype;
}
public function show_action_buttons()
{
if ($this->id) {
if ($GLOBALS['user']->has_access('75')) {
echo Ajax::button('?page=index&action=start_channel&id=' . $this->id,'run', T_('Start Channel'),'channel_start_' . $this->id);
echo " " . Ajax::button('?page=index&action=stop_channel&id=' . $this->id,'stop', T_('Stop Channel'),'channel_stop_' . $this->id);
echo " <a id=\"edit_channel_ " . $this->id . "\" onclick=\"showEditDialog('channel_row', '" . $this->id . "', 'edit_channel_" . $this->id . "', '" . T_('Channel edit') . "', 'channel_row_', 'refresh_channel')\">" . UI::get_icon('edit', T_('Edit')) . "</a>";
echo " <a href=\"" . AmpConfig::get('web_path') . "/channel.php?action=show_delete&id=" . $this->id ."\">" . UI::get_icon('delete', T_('Delete')) . "</a>";
}
}
}
public function format()
{
$this->tags = Tag::get_top_tags('channel', $this->id);
$this->f_tags = Tag::get_display($this->tags);
}
public function get_target_object()
{
$object = null;
if ($this->object_type == 'playlist') {
$object = new Playlist($this->object_id);
$object->format();
}
return $object;
}
public function get_stream_url()
{
return "http://" . $this->interface . ":" . $this->port . "/stream." . $this->stream_type;
}
public function get_stream_proxy_url()
{
return AmpConfig::get('web_path') . '/channel/' . $this->id . '/stream.' . $this->stream_type;
}
public static function get_channel_list_sql()
{
$sql = "SELECT `id` FROM `channel` ";
return $sql;
}
public static function get_channel_list()
{
$sql = self::get_channel_list_sql();
$db_results = Dba::read($sql);
$results = array();
while ($row = Dba::fetch_assoc($db_results)) {
$results[] = $row['id'];
}
return $results;
}
public function start_channel()
{
exec("php " . AmpConfig::get('prefix') . '/bin/channel_run.inc -c ' . $this->id . ' > /dev/null &');
}
public function stop_channel()
{
if ($this->pid) {
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
exec("taskkill /F /PID " . $this->pid);
} else {
exec("kill -9 " . $this->pid);
}
$sql = "UPDATE `channel` SET `start_date` = '0', `listeners` = '0', `pid` = '0' WHERE `id` = ?";
Dba::write($sql, array($this->id));
$this->pid = 0;
}
}
public function check_channel()
{
$check = false;
if ($this->interface && $this->port) {
$connection = @fsockopen($this->interface, $this->port);
if (is_resource($connection)) {
$check = true;
fclose($connection);
}
}
return $check;
}
public function get_channel_state()
{
if ($this->check_channel()) {
$state = T_("Running");
} else {
$state = T_("Stopped");
}
return $state;
}
protected function init_channel_songs()
{
$this->song_pos = 0;
$this->songs = array();
$this->playlist = $this->get_target_object();
if ($this->playlist) {
if (!$this->random) {
$this->songs = $this->playlist->get_songs();
}
}
$this->is_init = true;
}
public function get_chunk()
{
$chunk = null;
if (!$this->is_init) {
$this->init_channel_songs();
}
if ($this->is_init) {
// Move to next song
while ($this->media == null && ($this->random || $this->song_pos < count($this->songs))) {
if ($this->random) {
$randsongs = $this->playlist->get_random_items(1);
$this->media = new Song($randsongs[0]['object_id']);
} else {
$this->media = new Song($this->songs[$this->song_pos]);
}
$this->media->format();
if ($this->media->catalog) {
$catalog = Catalog::create_from_id($this->media->catalog);
if (make_bool($this->media->enabled)) {
if (AmpConfig::get('lock_songs')) {
if (!Stream::check_lock_media($this->media->id, 'song')) {
debug_event('channel', 'Media ' . $this->media->id . ' locked, skipped.', '3');
$this->media = null;
}
}
}
if ($this->media != null) {
$this->media = $catalog->prepare_media($this->media);
if (!$this->media->file || !Core::is_readable(Core::conv_lc_file($this->media->file))) {
debug_event('channel', 'Cannot read media ' . $this->media->id . ' file, skipped.', '3');
$this->media = null;
} else {
$valid_types = $this->media->get_stream_types();
if (!in_array('transcode', $valid_types)) {
debug_event('channel', 'Missing settings to transcode ' . $this->media->file . ', skipped.', '3');
$this->media = null;
} else {
debug_event('channel', 'Now listening to ' . $this->media->file . '.', '5');
}
}
}
} else {
debug_event('channel', 'Media ' . $this->media->id . ' doesn\'t have catalog, skipped.', '3');
$this->media = null;
}
$this->song_pos++;
// Restart from beginning for next song if the channel is 'loop' enabled
// and load fresh data from database
if ($this->media != null && $this->song_pos == count($this->songs) && $this->loop) {
$this->init_channel_songs();
}
}
if ($this->media != null) {
// Stream not yet initialized for this media, start it
if (!$this->transcoder) {
$this->transcoder = Stream::start_transcode($this->media, $this->stream_type, $this->bitrate);
$this->media_bytes_streamed = 0;
}
if (is_resource($this->transcoder['handle'])) {
$chunk = fread($this->transcoder['handle'], 4096);
$this->media_bytes_streamed += strlen($chunk);
// End of file, prepare to move on for next call
if (feof($this->transcoder['handle'])) {
$this->media->set_played();
if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') {
fread($this->transcoder['stderr'], 4096);
fclose($this->transcoder['stderr']);
}
fclose($this->transcoder['handle']);
proc_close($this->transcoder['process']);
$this->media = null;
$this->transcoder = null;
}
} else {
$this->media = null;
$this->transcoder = null;
}
if (!strlen($chunk)) {
$chunk = $this->get_chunk();
}
}
}
return $chunk;
}
public static function play_url($oid, $additional_params='')
{
$channel = new Channel($oid);
return $channel->get_stream_proxy_url() . '?rt=' . time() . '&filename=' . urlencode($channel->name) . '.' . $channel->stream_type . $additional_params;
}
} // end of channel class
Zerion Mini Shell 1.0