<?php
/**
* @author Rabotyahoff
* @version 0.2
* @license BSD
*
* This class can parce link to page with video to uniq ID.
* It can get preview images and embed-code by ID.
* Now it supports youtube.com, vimeo.com and rutube.ru.
*
* site: http://ra-project.net/my_classes/c_video_providers
* email: rabotyahoff@gmail.com
*
* date: 2012.02.05
* first release
*
* date: 2013.01.03
* * fix rutube
* + title, descrition, duration
*
*/
/*
* base class of video provider
*/
abstract class a_video_provider{
protected $video_id=false;
protected $cache_xml=array();
function __construct($video_id=false){
if ($video_id!==false) $this->set_video_id($video_id);
}
/**
*
* @param string $video_id
* @return a_video_provider
*/
function set_video_id($video_id){
$this->video_id=$video_id;
return $this;
}
/**
*
* @param string $url
* @return SimpleXMLElement
*/
protected function read_remote_xml($url){
if (empty($this->cache_xml[$url])){
$this->cache_xml[$url]=simplexml_load_file($url);
}
return $this->cache_xml[$url];
}
/**
* @return string
*/
abstract function get_url_watch();
/**
* @return string
*/
abstract function get_embed();
/**
* @return array
*/
abstract function get_url_img_preview();
/**
* @return array
*/
abstract function get_info();
/**
* @return array
*/
abstract function get_regexps();
}
/*Begin video providers*/
class c_video_provider_youtube extends a_video_provider {
function get_url_watch(){
return 'http://www.youtube.com/watch?v='.$this->video_id;
}
function get_embed(){
return '<iframe width="560" height="315" src="http://www.youtube.com/embed/'.$this->video_id.'" frameborder="0" webkitAllowFullScreen="webkitAllowFullScreen" mozallowfullscreen="mozallowfullscreen" allowfullscreen="allowfullscreen"></iframe>';
}
function get_url_img_preview(){
$result=array();
$result['small'] = 'http://img.youtube.com/vi/'.$this->video_id.'/default.jpg';
$result['medium'] = 'http://img.youtube.com/vi/'.$this->video_id.'/hqdefault.jpg';
$result['large'] = 'http://img.youtube.com/vi/'.$this->video_id.'/hqdefault.jpg';
return $result;
}
function get_info(){
$result=false;
$content = file_get_contents("http://youtube.com/get_video_info?video_id=".$this->video_id);
if (!empty($content)){
parse_str($content, $arr);
if (!empty($arr)){
$result=array();
$result['title']=$arr['title'];
$result['description'] = '';
$result['duration']=$arr['length_seconds'];
}
}
return $result;
}
function get_regexps(){
$start="(?:\/|\s|^)(?:www\.)?";
$result=array();
$result[]=$start."youtube\.com\/watch\/?\?v=([A-Za-z0-9_-]+)";
$result[]=$start."youtu.be\/([A-Za-z0-9_-]+)";
return $result;
}
}
class c_video_provider_vimeo extends a_video_provider {
function get_url_watch(){
return 'http://vimeo.com/'.$this->video_id;
}
function get_embed(){
return '<iframe width="400" height="225" src="http://player.vimeo.com/video/'.$this->video_id.'?title=0&byline=0&portrait=0" webkitAllowFullScreen="webkitAllowFullScreen" mozallowfullscreen="mozallowfullscreen" allowfullscreen="allowfullscreen"></iframe>';
}
protected function _url_xml(){
return 'http://vimeo.com/api/v2/video/'.$this->video_id.'.xml';
}
function get_url_img_preview(){
$result=false;
$xml = $this->read_remote_xml($this->_url_xml());
if ($xml) {
$result = array();
$result['small'] = (string) $xml->video->thumbnail_small;
$result['medium'] = (string) $xml->video->thumbnail_medium;
$result['large'] = (string) $xml->video->thumbnail_large;
}
return $result;
}
function get_info(){
$result=false;
$xml = $this->read_remote_xml($this->_url_xml());
if ($xml) {
$result = array();
$result['title'] = (string) $xml->video->title;
$result['description'] = strip_tags((string) $xml->video->description);
$result['duration']=(int) $xml->video->duration;
}
return $result;
}
function get_regexps(){
$start="(?:\/|\s|^)(?:www\.)?";
$result=array();
$result[]=$start."vimeo.com\/(\d+)";
return $result;
}
}
class c_video_provider_rutube extends a_video_provider {
function get_url_watch(){
return 'http://rutube.ru/video/'.$this->video_id.'.html';
}
protected function _url_xml(){
return "http://rutube.ru/cgi-bin/xmlapi.cgi?rt_mode=movie&rt_movie_id=".$this->video_id."&utf=1";
}
function get_embed(){
$result=false;
$xml = $this->read_remote_xml($this->_url_xml());
if ($xml) {
$result = (string) $xml->html;
}
return $result;
}
function get_url_img_preview(){
$result=false;
$xml = $this->read_remote_xml($this->_url_xml());
if ($xml) {
$result=array();
$result['small'] = (string) $xml->thumbnail_url;
$result['medium'] = (string) $xml->thumbnail_url;
$result['large'] = (string) $xml->thumbnail_url;
}
return $result;
}
function get_info(){
$result=false;
$xml = $this->read_remote_xml($this->_url_xml());
if ($xml) {
$result = array();
$result['title'] = (string) $xml->title;
$result['description'] = strip_tags((string) $xml->description);
$result['duration']=(int) $xml->duration;
}
return $result;
}
function get_regexps(){
$start="(?:\/|\s|^)(?:www\.)?";
$result=array();
$result[]=$start."rutube.ru\/video\/([A-Za-z0-9_-]+)\/";
$result[]=$start."rutube.ru\/video\/([A-Za-z0-9_-]+)";
return $result;
}
}
class c_video_provider_dailymotion extends a_video_provider {
function get_url_watch(){
return 'http://www.dailymotion.com/video/'.$this->video_id;
}
protected function _url_xml(){
return "http://www.dailymotion.com/services/oembed?format=xml&url=".$this->get_url_watch();
}
function get_embed(){
//return '<iframe frameborder="0" width="480" height="270" src="http://www.dailymotion.com/embed/video/'.$this->video_id.'" webkitAllowFullScreen="webkitAllowFullScreen" mozallowfullscreen="mozallowfullscreen" allowfullscreen="allowfullscreen"></iframe>';
$result=false;
$xml = $this->read_remote_xml($this->_url_xml());
if ($xml) {
$result = (string) $xml->html;
}
return $result;
}
function get_url_img_preview(){
$result=false;
$xml = $this->read_remote_xml($this->_url_xml());
if ($xml) {
$result = array();
$result['small'] = (string) $xml->thumbnail_url;
$result['medium'] = (string) $xml->thumbnail_url;
$result['large'] = (string) $xml->thumbnail_url;
}
return $result;
}
function get_info(){
$result=false;
$xml = $this->read_remote_xml($this->_url_xml());
if ($xml) {
$result = array();
$result['title'] = (string) $xml->title;
$result['description'] = '';
$result['duration']='';
}
return $result;
}
function get_regexps(){
$start="(?:\/|\s|^)(?:www\.)?";
$result=array();
$result[]=$start."dailymotion.com\/([\/A-Za-z0-9_-]*)video\/([A-Za-z0-9_-]+)";
return $result;
}
}
/*End video providers*/
class c_video_providers {
public static $provider_youtube='YOUTUBE';
public static $provider_vimeo='VIMEO';
public static $provider_rutube='RUTUBE';
public static $provider_dailymotion='DAILYMOTION';
public $provider_ids=array();
function __construct(){
$this->provider_ids[]=c_video_providers::$provider_youtube;
$this->provider_ids[]=c_video_providers::$provider_vimeo;
$this->provider_ids[]=c_video_providers::$provider_rutube;
$this->provider_ids[]=c_video_providers::$provider_dailymotion;
}
/**
* @param string $provider_id
* @return boolean|a_video_provider
*/
protected function get_provider($provider_id){
$o_video_provider=false;
switch ($provider_id){
case c_video_providers::$provider_youtube:
$o_video_provider=new c_video_provider_youtube();
break;
case c_video_providers::$provider_vimeo:
$o_video_provider=new c_video_provider_vimeo();
break;
case c_video_providers::$provider_rutube:
$o_video_provider=new c_video_provider_rutube();
break;
case c_video_providers::$provider_dailymotion:
$o_video_provider=new c_video_provider_dailymotion();
break;
}
return $o_video_provider;
}
/**
*
* @param string $video_code 'YOUTUBE:zlOYV3vMy8o'
* @return boolean|array
*/
function get_video_info($video_code) {
$tmp=explode(':', $video_code);
$provider_id=strtoupper($tmp[0]);
$video_id=$tmp[1];
$o_video_provider=$this->get_provider($provider_id);
if ($o_video_provider===false) return false;
$o_video_provider->set_video_id($video_id);
$res=array();
$res['url_watch']=$o_video_provider->get_url_watch();
$res['embed']=$o_video_provider->get_embed();
$res['url_img_preview']=$o_video_provider->get_url_img_preview();
$res['info']=$o_video_provider->get_info();
return $res;
}
/**
*
* @param string provider_idr
* @param string provider_idd
* @return string
*/
protected function make_video_code($provider_id, $video_id){
return $provider_id.':'.$video_id;
}
/**
*
* @param string provider_id * @return string|boolean
*/
function get_video_code($link){
$prov_regexps=array();
foreach ($this->provider_ids as $provider_id){
$o_video_provider=$this->get_provider($provider_id);
if ($o_video_provider===false) continue;
$prov_regexps[$provider_id]=$o_video_provider->get_regexps();
}
foreach ($prov_regexps as $provider_id=>$regexps){
if (!empty($regexps)){
foreach ($regexps as $regexp){
$matches=array();
preg_match('/'.$regexp.'/i', $link, $matches);
if (!empty($matches)){
return $this->make_video_code($provider_id, $matches[count($matches)-1]);
}
}
}
}
return false;
}
}
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