sending xml and headers via curl

Question

wondering how I can set all this data in a curl session, via php:

POST /feeds/api/users/default/uploads HTTP/1.1
Host: uploads.gdata.youtube.com
Authorizatio         


        

Answer 1

The boundary is required because the form enctype is multipart/form-data, rather in this case multipart/related. The boundary is a unique string that cannot appear anywhere else in the request, and it is used to separate each element from the form, whether it is the value of a text input, or a file upload. Each boundary has its own content-type.

Curl cannot do multipart/related for you, so you will need to use a workaround, see this message from the curl mailing list for suggestions. Basically, you will have to construct most of the message yourself.

Note, the last boundary has an additional -- at the end.

This code should hopefully help get you started:

<?php

$url       = 'http://uploads.gdata.youtube.com/feeds/api/users/default/uploads';
$authToken = 'DXAA...sdb8'; // token you got from google auth
$boundary  = uniqid();      // generate uniqe boundary
$headers   = array("Content-Type: multipart/related; boundary=\"$boundary\"",
                   "Authorization: AuthSub token=\"$authToken\"",
                   'GData-Version: 2',
                   'X-GData-Key: key=adf15....a8dc',
                   'Slug: video-test.mp4');

$postData  = "--$boundary\r\n"
            ."Content-Type: application/atom+xml; charset=UTF-8\r\n\r\n"
            .$xmlString . "\r\n"  // this is the xml atom data
            ."--$boundary\r\n"
            ."Content-Type: video/mp4\r\n"
            ."Content-Transfer-Encoding: binary\r\n\r\n"
            .$videoData . "\r\n"  // this is the content of the mp4
            ."--$boundary--";


$ch  = curl_init($url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

$response = curl_exec($ch);
curl_close($ch);

Hope that helps.