Keep getting error 417 from Twitter on image upload

[adamzwakk]

I'm trying to upload an image and status to Twitter, but the response I get back is 417 and nothing gets posted.

My code is this

$args['status'] = $status;
$args['media[]'] = '@'.$_FILES['image']['tmp_name'].';type='.$_FILES['image']['type'].';filename='.$_FILES['image']['name'];
$code = $tmhOAuth->request('POST', 'https://upload.twitter.com/1/statuses/update_with_media.json', $args,false,true);

I've seen some other issues like this (like this one http://www.lampdocs.com/blog/2011/06/twitter-error-417-expectation-failed-php-solution/) but I can't seem to get around it.

Any ideas?

[adamzwakk]

I added $this->headers['Expect'] = ''; to line 359 in tmhoauth.php and it worked for me.

[jefvlamings]

The addition of empty expect headers solved the failing image upload issue for me too.

[themattharris]

so the problem with an empty expects header is it's fundamentally against the RFCs - which is why I took it out. it's also not required, from my testing, for v1.1 of the Twitter API.

i'll try and spend some time this christmas finding an RFC compatible way of making this work.