如何上传一个有空格的文件是用curl + php命名的？

Question

I'm using this code for uploading a file to my server, using HTTP POST:

$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_VERBOSE, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
$post = array(
    "upload" => '@' . $filepath
);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
$curl_result = curl_exec($ch);

This code works when $filepath does not contain spaces. However, it is possible that it might. When I test a path with spaces, I get the curl error "failed creating formpost data".

The curl manual does not tell me what to do, all it gives me are unix filenames without spaces. I tried following http://curl.haxx.se/mail/archive-2006-01/0079.html like so, but it didn't help me either:

"upload" => '"@' . $filepath . '"'
"upload" => '@"' . $filepath . '"'

Anyone have an idea?

Answer 1

Current versions of cURL (and PHP-cURL) handle spaces in filenames with no problems. Older versions may have had bugs, I'm not sure. Check you're using reasonably recent versions.

I can confirm spaces in filenames are no problem at all under PHP 5.2.13 and libcurl/7.19.4 on Linux.

The error message you're getting is the same one as when PHP/cURL can't find a file. Odds are the problems are somewhere else in your code. Probably an issue of having under- or over-escaped the spaces in the filename but probably not an issue with cURL itself.

I'd suggest looking elsewhere in your code for the problem or producing a hard-coded example of the problem occurring (where $filename is being set in the PHP directly rather than read from elsewhere).

Answer 2

I faced the same problem and I couldn't upgrade CURL on the system.

So I wrote a simple escape function that iterated on the string to replace the space character for the + sign, which is the traditional way to represent URLs with spaces.

For my surprise, it worked. :)

C++ code:

#include <algorithm>
#include <string>

std::string s = "";
std::replace(s.begin(), s.end(), ' ', '+');    

Answer 3

You need the realpath

$filepath = 'D:\7 habits copy.txt';
$url = 'http://www.speedyshare.com/upload.php?'.rand(10000000, 99999999);
$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_VERBOSE, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
$post = array(
    "upload" => '@' . realpath($filepath)
);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
$curl_result = curl_exec($ch);
echo $curl_result;

Worked even on Windows. I'm pretty sure it will work on *NIX systems

Answer 4

Put the target file in a variable, such as 'while read', and pass the variable in the curl the command. Be sure the variable is in double quotes and curl will handle it.

For example:

curl -T /PATH/TO/YOUR/FILE/DIRECTORY/"$f"

Answer 5

You will need to escape the spaces. Not sure of the syntax you would use but maybe something like this:

'This is the file name with spaces.txt'

to

'This\ is\ the\ file\ name\ with\ spaces.txt'

again I'm not sure of the syntax it's just an example

or you might just need to add quotes to the file name, like this:

'This is the file name with spaces.txt'