覆盖内容类型导致内部服务器错误

Question

I am doing an iOS app and I require to set Content-Type headers by my own.

Whenever I override the HTTP header the web server returns 500 - Internal server error.

So I tried with a PHP code to check whether this is iOS or server side error.

    $target_url = 'http://myserver.com';
    $file_name_with_full_path = realpath('8.jpeg');
    $post = array('extra_info' => '123456','file_contents'=>'@'.$file_name_with_full_path);
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL,$target_url);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: multipart/form-data; boundary=--xxx"));
    curl_setopt($ch, CURLOPT_POST,1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
    $result=curl_exec ($ch);
    curl_close ($ch);
    echo $result;

The above code response with Internal Server Error.

but whenever I remove bellow line, it works fine.

curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: multipart/form-data; boundary=--xxx"));

At last I tried to re-generate the issue with Chrome Postman plugin. I got the same result. If I set Content-Type as multipart/form-data I ended up having the same issue.

Is there anything to do with apache or php configurations to accept overriding headers?

Appreciate any clue on fixing this issue.

Answer 1

Whenever you use a parameter as param => @/test/file.txt it uses the multipart file upload by default. So when you alter this, you get error.

You can only alter the Header(without any error) only if you remove the file uploading parameter.