Get videos from vk.com using PHP

Get video from VK using PHP

I had a problem - how to get a video with all the well-known social network vkontakte.ru. and install it on the site. The key point, I did not want to use IFRAME or some other VK services, I wanted the video to look as if it was on my site. Climbing a couple of dozen sites, the most that I found are sites for downloading videos, such as VIDEOSAVER and so on. All this did not fit, because I needed a code that I could integrate into my PHP engine.
There were a couple of custom PHP scripts - which cost from 30 to 500 cu But half of them were encoded with Zend Encoder - ohm or simply used their servers to search for video files and did not have much value for me.
So began the inspiration. I decided to use the mobile version because it is much easier. The first thing I did was compile a video from VK.


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Login to VK

The first piece of code was the entrance to the VC. I rummaged through the internet and found something like this:


(Code taking into account my corrections)

ini_set('error_reporting', E_ALL); ini_set ('display_errors', 1); $user_agent = 'Mozilla/5.0 (Windows; U; Windows NT 6.0; ru; rv:1.9.2.13) ' . 'Gecko/20101203 Firefox/3.6.13 ( .NET CLR 3.5.30729)'; $login = ''; $password = ''; function curl_gets_exec($ch, $redirects = 0, $curlopt_returntransfer = true, $curlopt_maxredirs = 10, $curlopt_header = false) { curl_setopt($ch, CURLOPT_HEADER, true); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $data = curl_exec($ch); $header=substr($data,0,curl_getinfo($ch,CURLINFO_HEADER_SIZE)); $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); $exceeded_max_redirects = $curlopt_maxredirs > $redirects; $exist_more_redirects = false; if ($http_code == 301 || $http_code == 302) { if ($exceeded_max_redirects) { list($header) = explode("\r\n\r\n", $data, 2); $matches = array(); preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches); $url = trim(array_pop($matches)); $url_parsed = parse_url($url); if (isset($url_parsed)) { curl_setopt($ch, CURLOPT_URL, $url); $redirects++; return curl_gets_exec($ch, $redirects, $curlopt_returntransfer, $curlopt_maxredirs, $curlopt_header); } } else { $exist_more_redirects = true; } } if ($data !== false) { if (!$curlopt_header) list(,$data) = explode("\r\n\r\n", $data, 2); if ($exist_more_redirects) return false; if ($curlopt_returntransfer) { return $data; } else { echo $data; if (curl_errno($ch) === 0) return true; else return false; } } else { return false; } } $ch = curl_init(); curl_setopt($ch, CURLOPT_USERAGENT, $user_agent); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_TIMEOUT, 10); curl_setopt($ch,CURLOPT_REFERER,'http://m.vk.com/login?fast=1&hash=&s=0&to='); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); curl_setopt($ch, CURLOPT_COOKIEFILE,'cookie.txt'); curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie.txt'); curl_setopt($ch, CURLOPT_POST, false); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_URL, 'https://login.vk.com/?act=login&from_host=m.vk.com&from_protocol=http&ip_h=&pda=1'); $answer = curl_gets_exec($ch); $post = array( 'email' => $login, 'pass' => $password ); curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post)); $answer = curl_gets_exec($ch); </code>        –   ,              ,   : <source lang="php"> curl_setopt($ch,CURLOPT_REFERER,'http://m.vk.com/login?fast=1&hash=&s=0&to='); //     curl_setopt($ch, CURLOPT_COOKIEFILE,'cookie.txt'); //    (           777 , - 'cookie.txt' ) curl_setopt($ch, CURLOPT_URL, 'https://login.vk.com/?act=login&from_host=m.vk.com&from_protocol=http&ip_h=&pda=1'); //    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post)); //    (   –     ) 

function curl_gets_exec is a function for more convenient working with CURL, handling redirects, and so on.
The remaining parameters can be found - php.net/manual/ru/book.curl.php

Parsig Video

Now it was necessary to find the video and parse it.
As you know, VK video files have the form - vk.com/video2409212_161721801
It is easy to guess that it consists of 2 pieces "2409212" and "161721801".
Therefore, I used 2 variables $ vid and $ oid, which began to receive GET requests

 $vid=$_GET['vid']; $oid=$_GET['oid']; 

And formed such a link

 $link="http://m.vk.com/video{$vid}_{$oid}"; 

Then we send the VK data and get the HTML text from the video page, all the HTML is stored in the $ answer variable

 curl_setopt($ch, CURLOPT_URL, $link); $answer = curl_gets_exec($ch); 

To avoid messing around a lot, I used the simple_html_dom library for parsing, you can download it on the Internet or I posted it here - v.plirex.com/simplehtmldom.rar
Create a simple obek

 include "simplehtmldom/simple_html_dom.php"; $html = new simple_html_dom(); 

Download HTML text in it

 $html->load($answer); 

We find the first element of the DOM system “video”, if you look at the vk.com/video2409212_161721801 page in the HTML code, then we see that references to the video are stored in this element

 $div_video=$html->find('video',0); 

Check if there is a video we need

 if($div_video->outertext=="")die(“Video not found”); 

inside the video is about the HTML code

 <video preload="none" controls="controls" poster="http://cs527213.userapi.com/u11174769/video/l_18a03288.jpg"> <source src="http://cs527213.userapi.com/u11174769/videos/dc3277461b.720.mp4" type="video/mp4"></source> <source src="http://cs527213.userapi.com/u11174769/videos/dc3277461b.480.mp4" type="video/mp4"></source> <source src="http://cs527213.userapi.com/u11174769/videos/dc3277461b.360.mp4" type="video/mp4"></source> <source src="http://cs527213.userapi.com/u11174769/videos/dc3277461b.240.mp4" type="video/mp4"></source> <div class="img"><img src="http://cs527213.userapi.com/u11174769/video/l_18a03288.jpg" alt=""></div> <div class="no_pl">  </div> </video> 

As you can see there are elements of 'source' in which to contain a link to the video.
I want to note that these links are active only for this user, and only after viewing the main document of the video, those links are vk.com/video2409212_161721801 .
Links to videos have the form - cs527213.userapi.com/u11174769/videos/dc3277461b.240.mp4
Where u11174769 is a unique cache, which is new every time.

 $sVideo=$div_video->find('source'); //        $aBuf=""; $j=0; foreach($sVideo as $post) { /*$aBuf[$j]=$post->outertext; $aBuf[$j]=substr($aBuf[$j],stripos($aBuf[$j],'src="')+5,strlen($aBuf[$j])); $aBuf[$j]=substr($aBuf[$j],0,stripos($aBuf[$j],'" type')); */ $aBuf[$j]=$post->src; $j++; //echo "{$aBuf[$j]} \n |"; } 

Preservation

Take the first available link and download it.

 $link= $aBuf[0]; header('Content-type: content=video/mp4'); header("Content-Disposition: attachment; filename=vPlirex.mpg"); header("Pragma: no-cache"); header("Expires: 0"); $tFile = fopen($link,'r'); while (!feof($tFile)) { echo( fgets($tFile)); } fclose($tFile); 

Conclusion

I have described a brief guide for downloading videos from VK. This code is not ideal and requires a lot of improvements. The first thing to get rid of storing cookies in the file, and in the future to make it possible to choose what quality to download the video.
But I did not find a similar example on the Internet. So go ahead.
Here is the link to the full source with the library v.plirex.com/v.plirex.com.rar
I also made a demo on the domain v.plirex.com