[Cppcms-users] Problem with http::file and the returned file name

[Christian G. <chr...@gm...>]

Hi all.

In my web application I make use of a file uploader, which works like
a charm. But
I run into this problem:

Some older IE versions (6,7,8) are sending the full path of the uploaded file
in the multipart data - verified via wireshark.
All other browsers (chrome, ff, safari) are sending only the filename.

This looks like:

Jul  5 10:24:51 chgm-pc tssw: Upload: request POST: id 'upload' (upload.cpp:21)
Jul  5 10:24:51 chgm-pc tssw: upload: storing file C:Dokumente und
EinstellungengmeinerEigene DateienDownloads01_257782.pdf - size:
2947635 (upload.cpp:41)
Jul  5 10:24:51 chgm-pc tssw: upload:
/tmp/If37354f45a5f672658789c3a33e95e68/C:Dokumente und
EinstellungengmeinerEigene DateienDownloads01_257782.pdf
(upload.cpp:48)

I thought that I could filter out the substring starting from the last
\ in the filename, but cppcms filters away all \.
Is there a way to configure it or did I found a bug?

The file looks in wireshark like:
C:\Dokumente und Einstellungen\gmeiner\Eigene Dateien\Download\s01_257782.pdf


Here is my currently used uploader

        if (id == "upload")
        {
            upload.form.load(context());
            if (upload.form.validate())
            {
                std::string filename = upload.form.file.value()->filename();

                // some versions of the Internet Explorer send the
full path as filename
                // and so we need to do some post processing in oder
to only get the filename.

                unsigned int found = filename.rfind("\\");
                if (found != std::string::npos)
                {
                    BOOSTER_DEBUG("Upload") << "found @ " << found;
                    filename = filename.substr(found);
                }

                BOOSTER_DEBUG("upload") << "storing file "
                        << filename
                        << " - size: " << upload.form.file.value()->size();

                // store file in users tmp folder
                std::string root = session().get("tmp");
                upload.form.file.value()->save_to(root + filename);
                BOOSTER_DEBUG("upload") << root + filename;

                // TODO: return information's about uploaded file
                this->empty_json_response();
            }
            else
            {
                BOOSTER_ERROR("upload") << "data not valid";

response().make_error_response(cppcms::http::response::not_acceptable);
            }
        }

thanks
--
Christian Gmeiner, MSc