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+--- Thread: Forcing download PDF Files not working (/showthread.php?tid=5459)
Forcing download PDF Files not working - El Forum - 01-22-2008
[eluser]Isern Palaus[/eluser]
Hello,
I'm trying to force download PDF Files from a controller.
In the administration of the website that I'm programing it's possible to add PDF files. Well, in the public version it needs to be download and I tried this:
Code:
function getRevista()
{
$id = $this->uri->segment(2, 0);
if($id == TRUE) {
$this->load->helper('download');
$fileName = "2b07f.pdf";
$path = "revistes/";
force_download($fileName,$path.$fileName);
}
}The filename usually will be asked in the DB but now, for the proof of concept I use a specific name. The uploaded files are in ./public_html/revistes/ my aplication folder is ./application/ and the system is ./system/.
When I try to get the file Adobe Reader gives me a error like:
Quote:Acrobat could not open '2b07f.pdf' because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and wasn't correctly uploaded.
[...]
When I checked the file for the size i saw that it's not a 0 bytes files. It contains the URL to the download, like this:
http://argentona.ipalaus.es/revistes/2b07f.pdf
What can I do?
Thank you in advance and sorry for school English.
Regards,
-- Isern Palaus
Forcing download PDF Files not working - El Forum - 01-22-2008
[eluser]Isern Palaus[/eluser]
What's more, what I want is that the user can't never know the real URL to the file.
By the way, it's possible to put the files before the public_html folder? And force a download to it like
/home/ipalaus/iesargentona/revises/2b07f.pdf
for the controller in:
/home/ipalaus/iesargentona/application/controllers/main.php
and the site:
/home/ipalaus/iesargentona/public_html/index.php
Sorry for double replying.
Regards,
-- Isern Palaus
Forcing download PDF Files not working - El Forum - 01-23-2008
[eluser]dawnerd[/eluser]
It is very possible and gave me much trouble when I first attempted it.
Code:
function _readfile_chunked($filename,$retbytes=true) {
$chunksize = 1*(1024*1024); // how many bytes per chunk
$buffer = '';
$cnt =0;
// $handle = fopen($filename, 'rb');
$handle = fopen($filename, 'rb');
if ($handle === false) {
return false;
}
while (!feof($handle)) {
$buffer = fread($handle, $chunksize);
echo $buffer;
ob_flush();
flush();
if ($retbytes) {
$cnt += strlen($buffer);
}
}
$status = fclose($handle);
if ($retbytes && $status) {
return $cnt; // return num. bytes delivered like readfile() does.
}
return $status;
}That's the best way in case you have a larger pdf. As for the path, it is relative to the CI root. Meaning if it is below pub_html then you must use ../downloads/file.
In the class I supplied above, the first parameter is the path to the file with the filename at the end.
I hope this helped.
Forcing download PDF Files not working - El Forum - 01-23-2008
[eluser]Alex007[/eluser]
force_download() 2nd parameter must be the file CONTENT, not the file name. Read your whole PDF in a string variable, then pass that to force_download().
Re-read the user guide, there's a perfect example in there.