| ZIP file download [message #175812] |
Thu, 27 October 2011 10:29  |
JustWondering
Messages: 9
Registered: April 2011
Karma: 0
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Junior Member |
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I am trying to write a script to download a zip file. Here's what I
have:
header("Cache-Control: no-store, no-cache");
header("Content-Description: File Transfer");
header("Content-Type: application/octet-stream");
header("Content-Disposition: attachment; filename="zipfile.zip");
header("Content-Transfer-Encoding: binary");
$outstream = fopen("php://output",'w');
$file = fopen("myfile.zip","rb");
if ($file) {
while(!feof($file)) {
fwrite($outstream, fread($file, 2048));
}
fclose($file);
}
fclose($outstream);
When I run the script, I get a dialog box asking me to save the file.
The file is saved fine, but I cannot open it from the Windows Explorer
(Windows tells that the compressed file is invalid). 7Zip however has
no problem opening it and extracting the files. Any ideas?
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| Re: ZIP file download [message #175813 is a reply to message #175812] |
Thu, 27 October 2011 10:32  |
Derek Turner
Messages: 48
Registered: October 2010
Karma: 0
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Member |
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On Thu, 27 Oct 2011 03:29:35 -0700, JustWondering wrote:
> I cannot open it from the Windows Explorer
> (Windows tells that the compressed file is invalid). 7Zip however has no
> problem opening it and extracting the files. Any ideas?
What did you use to create myfile.zip? Can windows explorer open that?
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| Re: ZIP file download [message #175814 is a reply to message #175813] |
Thu, 27 October 2011 10:47 |
JustWondering
Messages: 9
Registered: April 2011
Karma: 0
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Junior Member |
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On Oct 27, 3:32 am, Derek Turner <frde...@cesmail.net> wrote:
> On Thu, 27 Oct 2011 03:29:35 -0700, JustWondering wrote:
>> I cannot open it from the Windows Explorer
>> (Windows tells that the compressed file is invalid). 7Zip however has no
>> problem opening it and extracting the files. Any ideas?
>
> What did you use to create myfile.zip? Can windows explorer open that?
I used PHP's zipArchive. Windows explorer can open the file.
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| Re: ZIP file download [message #175815 is a reply to message #175813] |
Thu, 27 October 2011 10:49 |
JustWondering
Messages: 9
Registered: April 2011
Karma: 0
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Junior Member |
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On Oct 27, 3:32 am, Derek Turner <frde...@cesmail.net> wrote:
> On Thu, 27 Oct 2011 03:29:35 -0700, JustWondering wrote:
>> I cannot open it from the Windows Explorer
>> (Windows tells that the compressed file is invalid). 7Zip however has no
>> problem opening it and extracting the files. Any ideas?
>
> What did you use to create myfile.zip? Can windows explorer open that?
I should also add that I'm using Windows 7, and FireFox.
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| Re: ZIP file download [message #175816 is a reply to message #175812] |
Thu, 27 October 2011 12:07 |
alvaro.NOSPAMTHANX
Messages: 277
Registered: September 2010
Karma: 0
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Senior Member |
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El 27/10/2011 12:29, JustWondering escribió/wrote:
> I am trying to write a script to download a zip file. Here's what I
> have:
>
> header("Cache-Control: no-store, no-cache");
> header("Content-Description: File Transfer");
> header("Content-Type: application/octet-stream");
> header("Content-Disposition: attachment; filename="zipfile.zip");
You have an unmatched quote so I guess this is not the literal code your
are running. Make sure that the real code does not add bogus white-space
before of after the file. You can test that if you open the file in an
hexadecimal editor (though a regular editor may do the trick).
You can end up with a bogus byte if you've saved the PHP source as UTF-8
and your editor is configured to write the Unicode BOM (byte-order marker).
> header("Content-Transfer-Encoding: binary");
>
> $outstream = fopen("php://output",'w');
>
> $file = fopen("myfile.zip","rb");
> if ($file) {
> while(!feof($file)) {
> fwrite($outstream, fread($file, 2048));
> }
> fclose($file);
> }
> fclose($outstream);
>
> When I run the script, I get a dialog box asking me to save the file.
> The file is saved fine, but I cannot open it from the Windows Explorer
> (Windows tells that the compressed file is invalid). 7Zip however has
> no problem opening it and extracting the files. Any ideas?
--
-- http://alvaro.es - Álvaro G. Vicario - Burgos, Spain
-- Mi sitio sobre programación web: http://borrame.com
-- Mi web de humor satinado: http://www.demogracia.com
--
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| Re: ZIP file download [message #175818 is a reply to message #175816] |
Thu, 27 October 2011 13:39 |
JustWondering
Messages: 9
Registered: April 2011
Karma: 0
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Junior Member |
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On Oct 27, 5:07 am, "Álvaro G. Vicario"
<alvaro.NOSPAMTH...@demogracia.com.invalid> wrote:
> El 27/10/2011 12:29, JustWondering escribió/wrote:
>
>> I am trying to write a script to download a zip file. Here's what I
>> have:
>
>> header("Cache-Control: no-store, no-cache");
>> header("Content-Description: File Transfer");
>> header("Content-Type: application/octet-stream");
>> header("Content-Disposition: attachment; filename="zipfile..zip");
>
> You have an unmatched quote so I guess this is not the literal code your
> are running. Make sure that the real code does not add bogus white-space
> before of after the file. You can test that if you open the file in an
> hexadecimal editor (though a regular editor may do the trick).
>
> You can end up with a bogus byte if you've saved the PHP source as UTF-8
> and your editor is configured to write the Unicode BOM (byte-order marker).
>
>
>
>
>
>
>
>
>
>> header("Content-Transfer-Encoding: binary");
>
>> $outstream = fopen("php://output",'w');
>
>> $file = fopen("myfile.zip","rb");
>> if ($file) {
>> while(!feof($file)) {
>> fwrite($outstream, fread($file, 2048));
>> }
>> fclose($file);
>> }
>> fclose($outstream);
>
>> When I run the script, I get a dialog box asking me to save the file.
>> The file is saved fine, but I cannot open it from the Windows Explorer
>> (Windows tells that the compressed file is invalid). 7Zip however has
>> no problem opening it and extracting the files. Any ideas?
>
> --
> --http://alvaro.es- Álvaro G. Vicario - Burgos, Spain
> -- Mi sitio sobre programación web:http://borrame.com
> -- Mi web de humor satinado:http://www.demogracia.com
> --
In the real code, U have a variable where the file names are. I
replaced that with actual file names to avoid any confusion. I guess
in the process I messed up the quotes.
In any case, I opened up the downloaded file in a binary editor and
found that the entire HEAD section is added upfront (names of style
sheets, description, etc.). How do I prevent this from happening?
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| Re: ZIP file download [message #175821 is a reply to message #175818] |
Thu, 27 October 2011 16:59 |
JustWondering
Messages: 9
Registered: April 2011
Karma: 0
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Junior Member |
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On Oct 27, 6:39 am, JustWondering <eastside...@gmail.com> wrote:
> On Oct 27, 5:07 am, "Álvaro G. Vicario"
>
>
>
>
>
>
>
>
>
> <alvaro.NOSPAMTH...@demogracia.com.invalid> wrote:
>> El 27/10/2011 12:29, JustWondering escribió/wrote:
>
>>> I am trying to write a script to download a zip file. Here's what I
>>> have:
>
>>> header("Cache-Control: no-store, no-cache");
>>> header("Content-Description: File Transfer");
>>> header("Content-Type: application/octet-stream");
>>> header("Content-Disposition: attachment; filename="zipfile.zip");
>
>> You have an unmatched quote so I guess this is not the literal code your
>> are running. Make sure that the real code does not add bogus white-space
>> before of after the file. You can test that if you open the file in an
>> hexadecimal editor (though a regular editor may do the trick).
>
>> You can end up with a bogus byte if you've saved the PHP source as UTF-8
>> and your editor is configured to write the Unicode BOM (byte-order marker).
>
>>> header("Content-Transfer-Encoding: binary");
>
>>> $outstream = fopen("php://output",'w');
>
>>> $file = fopen("myfile.zip","rb");
>>> if ($file) {
>>> while(!feof($file)) {
>>> fwrite($outstream, fread($file, 2048));
>>> }
>>> fclose($file);
>>> }
>>> fclose($outstream);
>
>>> When I run the script, I get a dialog box asking me to save the file.
>>> The file is saved fine, but I cannot open it from the Windows Explorer
>>> (Windows tells that the compressed file is invalid). 7Zip however has
>>> no problem opening it and extracting the files. Any ideas?
>
>> --
>> --http://alvaro.es-Álvaro G. Vicario - Burgos, Spain
>> -- Mi sitio sobre programación web:http://borrame.com
>> -- Mi web de humor satinado:http://www.demogracia.com
>> --
>
> In the real code, U have a variable where the file names are. I
> replaced that with actual file names to avoid any confusion. I guess
> in the process I messed up the quotes.
>
> In any case, I opened up the downloaded file in a binary editor and
> found that the entire HEAD section is added upfront (names of style
> sheets, description, etc.). How do I prevent this from happening?
Problem solved. Here's what I did:
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-
check=0");
header("Content-Description: File Transfer");
header("Content-Type: application/octet-stream");
header("Content-Disposition: attachment; filename=\"targetfile.zip
\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . filesize('sourcefile.zip'));
ob_clean();
flush();
readfile ('sourcefile.zip');
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| Re: ZIP file download [message #175824 is a reply to message #175821] |
Thu, 27 October 2011 21:54 |
Jerry Stuckle
Messages: 2598
Registered: September 2010
Karma: 0
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Senior Member |
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On 10/27/2011 12:59 PM, JustWondering wrote:
> On Oct 27, 6:39 am, JustWondering<eastside...@gmail.com> wrote:
>> On Oct 27, 5:07 am, "Álvaro G. Vicario"
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> <alvaro.NOSPAMTH...@demogracia.com.invalid> wrote:
>>> El 27/10/2011 12:29, JustWondering escribió/wrote:
>>
>>>> I am trying to write a script to download a zip file. Here's what I
>>>> have:
>>
>>>> header("Cache-Control: no-store, no-cache");
>>>> header("Content-Description: File Transfer");
>>>> header("Content-Type: application/octet-stream");
>>>> header("Content-Disposition: attachment; filename="zipfile.zip");
>>
>>> You have an unmatched quote so I guess this is not the literal code your
>>> are running. Make sure that the real code does not add bogus white-space
>>> before of after the file. You can test that if you open the file in an
>>> hexadecimal editor (though a regular editor may do the trick).
>>
>>> You can end up with a bogus byte if you've saved the PHP source as UTF-8
>>> and your editor is configured to write the Unicode BOM (byte-order marker).
>>
>>>> header("Content-Transfer-Encoding: binary");
>>
>>>> $outstream = fopen("php://output",'w');
>>
>>>> $file = fopen("myfile.zip","rb");
>>>> if ($file) {
>>>> while(!feof($file)) {
>>>> fwrite($outstream, fread($file, 2048));
>>>> }
>>>> fclose($file);
>>>> }
>>>> fclose($outstream);
>>
>>>> When I run the script, I get a dialog box asking me to save the file.
>>>> The file is saved fine, but I cannot open it from the Windows Explorer
>>>> (Windows tells that the compressed file is invalid). 7Zip however has
>>>> no problem opening it and extracting the files. Any ideas?
>>
>>> --
>>> --http://alvaro.es-Álvaro G. Vicario - Burgos, Spain
>>> -- Mi sitio sobre programación web:http://borrame.com
>>> -- Mi web de humor satinado:http://www.demogracia.com
>>> --
>>
>> In the real code, U have a variable where the file names are. I
>> replaced that with actual file names to avoid any confusion. I guess
>> in the process I messed up the quotes.
>>
>> In any case, I opened up the downloaded file in a binary editor and
>> found that the entire HEAD section is added upfront (names of style
>> sheets, description, etc.). How do I prevent this from happening?
>
> Problem solved. Here's what I did:
>
> header("Pragma: public");
> header("Expires: 0");
> header("Cache-Control: must-revalidate, post-check=0, pre-
> check=0");
> header("Content-Description: File Transfer");
> header("Content-Type: application/octet-stream");
> header("Content-Disposition: attachment; filename=\"targetfile.zip
> \"");
> header("Content-Transfer-Encoding: binary");
> header("Content-Length: " . filesize('sourcefile.zip'));
> ob_clean();
> flush();
> readfile ('sourcefile.zip');
It's much easier than that. Just don't put a HEAD section in there.
<HEAD> is for (X)HTML. You are sending a zip file. Not at all the same
thing.
Your script should ONLY contain (starting on line 1):
<?php
header(...)
etc. ...
readfile('sourcefile.zip')
?>
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
==================
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