• This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn more.

XF 1.3 XF 1.3.4 serving corrupted image attachments

#1
Hello fellow XenForo'ers ('uns?),

I have recently upgrade from 1.1.3 to 1.3.4 and am still working out a lot of small bugs. In the process, I encountered this oddity:

When a user uploads an image file attachment, if the file is a PNG or JPEG, the stored file (in AWS S3 internal_data in my case) differs slightly from the served file (via XenForo_ViewPublic_Attachment_View::renderRaw()):
http://www.diffnow.com/?report=8r9mn

The result is corrupted:
http://imgur.com/HDX8hv7

I am using Zend_Service_Amazon_S3 (version: S3.php 24593 2012-01-05 20:35:02Z) to write/read from AWS.

Any thoughts or pointers? Any help would be appreciated. :)


Edit:
Here's a var_dump of the response and params:
Code:
["_response":protected]=>
  object(Zend_Controller_Response_Http)#29 (8) {
    ["_body":protected]=>
    array(0) {
    }
    ["_exceptions":protected]=>
    array(0) {
    }
    ["_headers":protected]=>
    array(7) {
      [0]=>
      array(3) {
        ["name"]=>
        string(15) "X-Frame-Options"
        ["value"]=>
        string(10) "SAMEORIGIN"
        ["replace"]=>
        bool(false)
      }
      [1]=>
      array(3) {
        ["name"]=>
        string(13) "Last-Modified"
        ["value"]=>
        string(29) "Mon, 18 Aug 2014 06:27:55 GMT"
        ["replace"]=>
        bool(true)
      }
      [2]=>
      array(3) {
        ["name"]=>
        string(12) "Content-Type"
        ["value"]=>
        string(10) "image/jpeg"
        ["replace"]=>
        bool(true)
      }
      [3]=>
      array(3) {
        ["name"]=>
        string(19) "Content-Disposition"
        ["value"]=>
        string(32) "inline; filename="wherewolf.jpg""
        ["replace"]=>
        bool(true)
      }
      [4]=>
      array(3) {
        ["name"]=>
        string(4) "Etag"
        ["value"]=>
        string(12) ""1408337496""
        ["replace"]=>
        bool(true)
      }
      [5]=>
      array(3) {
        ["name"]=>
        string(14) "Content-Length"
        ["value"]=>
        string(5) "28947"
        ["replace"]=>
        bool(true)
      }
      [6]=>
      array(3) {
        ["name"]=>
        string(22) "X-Content-Type-Options"
        ["value"]=>
        string(7) "nosniff"
        ["replace"]=>
        bool(false)
      }
    }
    ["_headersRaw":protected]=>
    array(0) {
    }
    ["_httpResponseCode":protected]=>
    int(200)
    ["_isRedirect":protected]=>
    bool(false)
    ["_renderExceptions":protected]=>
    bool(false)
    ["headersSentThrowsException"]=>
    bool(true)
  }

["_params":protected]=>
  array(2) {
    ["attachment"]=>
    array(15) {
      ["attachment_id"]=>
      int(167315)
      ["data_id"]=>
      int(168277)
      ["content_type"]=>
      string(4) "post"
      ["content_id"]=>
      int(496571638)
      ["attach_date"]=>
      int(1408337496)
      ["temp_hash"]=>
      string(0) ""
      ["unassociated"]=>
      int(0)
      ["view_count"]=>
      int(0)
      ["filename"]=>
      string(13) "wherewolf.jpg"
      ["file_size"]=>
      int(28947)
      ["file_hash"]=>
      string(32) "84a4f8f5eea9b9a23902d1822db96ee3"
      ["width"]=>
      int(500)
      ["height"]=>
      int(622)
      ["thumbnail_width"]=>
      int(96)
      ["thumbnail_height"]=>
      int(119)
    }
    ["attachmentFile"]=>
    string(105) "s3://---.------.------.com/internal_data/attachments/168/168277-84a4f8f5eea9b9a23902d1822db96ee3.data"
  }
 
Last edited:
#2
After more digging, readfile() and file_get_contents() on an s3:// file path turned out to be the culprit:

PHP:
<?
require_once 'Zend/Service/Amazon/S3.php';
$s3 = new Zend_Service_Amazon_S3('-- key --', '-- aws secret --');
$s3->registerStreamWrapper("s3");
$fgetData   = file_get_contents('s3://'.$filePath);
$zendS3Data = $s3->getObject($filePath);

echo ($fgetData === $zendS3Data); // -> bool(false);
?>
Pardon the n00b thread. Hopefully this will help someone out one day!