File corruption

I can also confirm that this bug is occurring on one of my client’s sites as well. We use the plugin for a number of .pdf files, all of which result in a network error.

Hi, I just upgraded the plugin to version 2.7.6. Well, the error persist on PDF files, but intead the browser show a new error windows, I am getting “Network Error” after the download (Chrome). On Firefox, I am getting this error:

<filename> could not be saved, because the source file could not be read

If you want to try: https://www.sopalmeiras.com/competicoes/copinha-2015/

The site is in portuguese, but you can see the “Download” link below. Just click.

Thanks!

Shaon resolved issue with corrupted PDF files:

Add the following line to functions.php, just after the line #160:
“readfile($filepath); die();”

PDF file download now works fine, no more corrupted files.

Congrats, Shaon!

9a2gb.net

Wow! Thank you very much. Now it’s working fine!

header("Content-Transfer-Encoding: binary");

readfile($filepath);
die();

$file = @fopen($filepath, "rb");

I have just upgraded to version 2.7.7 and the problem came back. Needed to re-apply the above patch.

The same situation here. Take a look at functions.php, patch is there, but conditioned.

It is now the second patch I have to apply manually (patch for download counter and patch for corrupred files issue). If there will be one more, I will give up on this plugin.

9a2gb.net

I concur, 9A2GB.

The condition seems to mean the code doesn’t get executed on my site and so any of my 300-odd zip files are “corrupt” when downloaded. By taking out the condition, the downloaded file works perfectly, as it should.

And yes, adjusting the short-code template every time the plug-in is updated (as well as this necessary mod) makes this a dodgy plug-in.

My issue is that with 300+ files available from my site, to move away from Download Manager means taking on a lot of work. ?? Let’s hope the author gets it right once more because it really is the best download manager I’ve found for WordPress.

I agree with you.

I do not want to criticize, but interesting is that the author has not mentioned the corrupted file fix in v2.7.7 resolved bugs description. It seems like he does not recognize that issue as the problem which is noticed in several download manager installation. Wierd.

9a2gb.net

@9a2gb, 2.7.7 has a new option to resolve the issue, please go to download manager settings page and select “Disabled” for “Resumable Download” option. We can’t apply the alternative code permanently as this is not an issue with plugin but server, so you have the option now.

Thanks Shaon!

Should I open a ticket to my server informing about this? Actually I am using Bluehost. What can I write to them to resolve the server related issues?

Shaon, I don’t understand what “Resumable Download” has to do with corrupted files issue? I didn’t changed my server/ISP provider, but you have been changed your program code and caused a problem.

The corrupted file issue does not manifest as a broken download. After download is finished, there is no reported error in my case, but downloaded file is shorter approximately for 20 KB, every download the same. Download was not interrupted in any way. This problem is not related to server. IMHO, your plugin code interfere with some other plugin code.

9a2gb.net

@rgiaviti, @9a2gb, please go to download manager settings page and select “Disabled” for “Resumable Download” option. that should resolve your issue.

Thanks Shaon – that fixed the problem of corrupted PDF files for me!

For anyone having a problem where pdfs are being corrupted while downloade (or viewing source code instead of downloading) – WP Super Cache is a problem and as per cnoviello recommendation tick Don’t cache pages with GET parameters. (?x=y at the end of a url) in WP Super Cache settings. That solves the problem

@rklis, did you try disabling “Resumable Download” and “Output Buffering” from download manager settings.