[wp-trac] [WordPress Trac] #44787: Generic "HTTP Error" when uploading PDFs via Media area, part II

[WordPress Trac]

#44787: Generic "HTTP Error" when uploading PDFs via Media area, part II
----------------------------------------------+----------------------------
 Reporter:  BearlyDoug                        |      Owner:  (none)
     Type:  defect (bug)                      |     Status:  new
 Priority:  normal                            |  Milestone:  Awaiting
                                              |  Review
Component:  Media                             |    Version:  4.9.8
 Severity:  normal                            |   Keywords:
  Focuses:  administration, coding-standards  |
----------------------------------------------+----------------------------
 In an update/continuation of abandoned (not by me)
 [https://core.trac.wordpress.org/ticket/43310 ticket #43310], I need to
 bring this issue back to the forefront. After one of my Co-workers and I
 did some additional testing, we have identified the "HTTP Error" is a
 result of some PHP versions not being able to generate thumbnails from the
 first page of a PDF (a change that was introduced within the 4.7 release).

 The issue is that there is no fall-back option when WordPress is unable to
 generate thumbnails.

 We loaded the [https://wordpress.org/plugins/disable-pdf-thumbnails/
 Disable PDF Thumbnails] plugin on the sites that were returning that "HTTP
 Error" and were able to successfully upload PDFs without any problems.

 Wordpress should auto-detect PDF image thumbnail creation "http errors"
 and switch to the following fallback upon failure:
 {{{
 function makeworthy_disable_pdf_thumbnails() {
         $fallbacksizes = array();
         return $fallbacksizes;
 }
 add_filter('fallback_intermediate_image_sizes',
 'makeworthy_disable_pdf_thumbnails');
 }}}

 The other thread (linked above) has some of our system information
 available, however, I can provide updated details (or FTP/WP-Admin access
 to the dev that fixes this), as needed.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/44787>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform