Problem uploading PDF Files

[eluser]marcello romani[/eluser]
Hallo everybody,
I have the same problem: I cannot upload PDF files because the mime type is not allowed even though I have it in allowed_types:

Code:

$upload_config['allowed_types'] = 'pdf|txt|jpg|png';

I see the problem with FF 3.5.7 on Ubuntu 9.10 (the exact user agent string is "Mozilla/5.0 (X11; U; Linux i686; it; rv:1.9.1.7) Gecko/20100106 Ubuntu/9.10 (karmic) Firefox/3.5.7").
However, I can upload pdfs just fine with IE 7 on Windows XP SP3 (exact IE version is 7.0.5730.13).

I have used Wireshark and I found something interesting: FF sends the file as text/html, while IE sends the same file as application/pdf. So it seems it's not a CI bug, but rather a FF one!

Partial dump of FF session:

POST /~marcello/php/ci_doctrine_upload/index.php/upload/submit HTTP/1.1

Host: localhost
User-Agent: Mozilla/5.0 (X11; U; Linux i686; it; rv:1.9.1.6) Gecko/20091215 Ubuntu/9.10 (karmic) Firefox/3.5.6
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: it-it,it;q=0.8,en-us;q=0.5,en;q=0.3
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Referer: http://localhost/~marcello/php/ci_doctri...oad/submit
Content-Type: multipart/form-data; boundary=---------------------------1078459809665128897602238684
Content-Length: 291301

-----------------------------1078459809665128897602238684
Content-Disposition: form-data; name="filename"; filename="sigmetrics09.pdf"
Content-Type: text/html

%PDF-1.2
%....
5 0 obj
<</Length 6 0 R/Filter /FlateDecode>>
stream
x..}[....f.>j.#............k....=.......$.DjE.CI<[email protected].:..SQ]@..D...d}.d]....../.~.>.-....7.(..I....._>.....'*,........V.I

Partial dump of IE session:

POST /~marcello/php/ci_doctrine_upload/index.php/upload/submit HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, */*
Referer: http://10.0.2.2/~marcello/php/ci_doctrin...php/upload
Accept-Language: it
Content-Type: multipart/form-data; boundary=---------------------------7dac53100ce
UA-CPU: x86
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
Host: 10.0.2.2
Content-Length: 291247
Connection: Keep-Alive
Cache-Control: no-cache
Cookie: ci_session=a:4:{s:10:"session_id";s:32:"22efd9ab2e26f4965f85661ffb90b609";s:10:"ip_address";s:9:"127.0.0.1";s:10:"user_agent";s:50:"Mozilla/4.0+(compatible;+MSIE+7.0;+Windows+NT+5.1)";s:13:"last_activity";s:10:"1262950328";}3fd09c2646963923d9cc0436b498aa30

-----------------------------7dac53100ce
Content-Disposition: form-data; name="filename"; filename="Z:\home\sigmetrics09.pdf"
Content-Type: application/pdf

%PDF-1.2
%....
5 0 obj
<</Length 6 0 R/Filter /FlateDecode>>
stream
x..}[....f.>j.#............k....=.......$.DjE.CI<[email protected].:..SQ]@..D...d}.d]....../.~.>.-....7.