PHP cURL creates empty file name only (0 bytes) - not transferring actual file

Question

I'm using a File Type input to pass FormData ($_FILES['files']) to PHP via Ajax

My PHP cURL looks like this:

$headers = array(
    "Authorization: Bearer " . <token>, 
    "Host: graph.microsoft.com",
    "Content-Type: multipart/form-data",
    "Content-Length: 0",
);

$filename = $_FILES['file']['name'];

$postfile = curl_init('https://graph.microsoft.com/v1.0/users/' . <userid> . '/drive/root:/<folder>/' . $filename . ':/content'); 
curl_setopt($postfile, CURLOPT_PUT, 1);
curl_setopt($postfile,CURLOPT_HEADER,false);
curl_setopt($postfile, CURLOPT_HTTPHEADER, $headers);
curl_setopt($postfile,CURLOPT_SSL_VERIFYPEER,0);
curl_setopt($postfile,CURLOPT_SSL_VERIFYHOST,0);

$result = curl_exec($postfile);
curl_close($postfile);

This creates a file in the correct folder of the user's OneDrive with the correct extension and everything, but they are all empty (0 bytes).

I've tested this with many files of different types for hours, and it's always the same.

Where am I going wrong?

So you are trying to upload an existing file rather than create a new file? — Allen Wu, Dec 02 '20 at 08:21
@AllenWu yes, that's right. I'm trying to upload existing files from my computer to OneDrive. — Sofistikat, Dec 02 '20 at 08:29
But I didn't see where you get the file from your local machine. Use `file_get_contents` to get the file and pass it when you call the Microsoft Graph API. See https://stackoverflow.com/questions/47262443/upload-file-to-office-365-onedrive-business-account-using-php-curl?answertab=votes#tab-top and https://stackoverflow.com/questions/47708226/how-upload-large-files-to-onedrive-using-php-curl?answertab=votes#tab-top. — Allen Wu, Dec 02 '20 at 08:55
The second answer is for uploading large file (>4M) to O365. But it should be the same for getting file using `file_get_contents`. — Allen Wu, Dec 02 '20 at 08:57
@AllenWu shouldn't that be available from $_FILES['file']['tmp_name']? — Sofistikat, Dec 02 '20 at 10:18
Didn't try `$_FILES['file']['tmp_name']`. Did you try with `file_get_contents`? — Allen Wu, Dec 03 '20 at 01:30
@AllenWu I finally got it!!! After trying for days now! Is 2pm too early for a drink? hahaha — Sofistikat, Dec 03 '20 at 03:19

score 0 · Answer 1 · answered Dec 02 '20 at 06:16

0

You have mising filedata Try add following to your curl

$fh_res = fopen($_FILES['file']['tmp_name'], 'r');

curl_setopt($postfile, CURLOPT_INFILE, $fh_res);
curl_setopt($postfile, CURLOPT_INFILESIZE, filesize($_FILES['file']['tmp_name']));

answered Dec 02 '20 at 06:16

LuRy

74
5

LuRy thanks for trying, but that didn't work, I'm afraid. – Sofistikat Dec 02 '20 at 06:21
@Sofistikat this seems to be useful - https://stackoverflow.com/questions/26251886/curl-post-file-to-onedrive – LuRy Dec 02 '20 at 06:37
LuRy that was one of the first search results I found, and it wasn't successful either. I just tried it again without any luck. – Sofistikat Dec 02 '20 at 06:49

score 0 · Answer 2 · answered Dec 03 '20 at 03:19

I finally solved it with the following:

    $filename = $_FILES['file']['name'];
    $filecon = fopen($_FILES['file']['tmp_name'],'r');
    $filesize = filesize($_FILES['file']['tmp_name']);

    $headers = array(
        "Authorization: Bearer " . <token>, 
        "Host: graph.microsoft.com",
        "Content-Type: application/json",
        "Content-Length: " . $filesize,
    );

    $postfile = curl_init('https://graph.microsoft.com/v1.0/users/' . <userid> . '/drive/root:/<folder>/' . $filename . ':/content'); 
    
    curl_setopt($postfile, CURLOPT_PUT, 1);
    curl_setopt($postfile,CURLOPT_HEADER,0);
    curl_setopt($postfile, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($postfile, CURLOPT_UPLOAD, 1);
    curl_setopt($postfile, CURLOPT_INFILE, $filecon);
    curl_setopt($postfile, CURLOPT_INFILESIZE, $filesize);

    $result = curl_exec($postfile);
    curl_close($postfile);

Hope this helps anyone looking for PHP cURL upload to OneDrive!

PHP cURL creates empty file name only (0 bytes) - not transferring actual file

2 Answers2