So I try such code:
std::ofstream myfile;
myfile.open ("example.txt", std::ios_base::app );
myfile << "Request body: " << request->body << std::endl << "Request size: " << request->body.length() << std::endl;
size_t found_file = request->body.find("filename=");
if (found_file != std::string::npos)
{
size_t end_of_file_name = request->body.find("\"",found_file + 1);
if (end_of_file_name != std::string::npos)
{
std::string filename(request->body, found_file+10, end_of_file_name - found_file);
myfile << "Filename == " << filename << std::endl;
}
}
myfile.close();
But it outputs in for example:
Request body: ------WebKitFormBoundary0tbfYpUAzAlgztXL
Content-Disposition: form-data; name="datafile"; filename="Torrent downloaded from Demonoid.com.txt"
Content-Type: text/plain
Torrent downloaded from http://www.Demonoid.com
------WebKitFormBoundary0tbfYpUAzAlgztXL--
Request size: 265
Filename == Torrent d
This means that from filename="Torrent downloaded from Demonoid.com.txt"
my cede returnes Torrent d
as a file name while it should return Torrent downloaded from Demonoid.com.txt
. How to fix my file upload http request filename parser?
string::find
returns the index of the first character in the search string . So it's giving you the index of the f
in filename=
when you search for that.
In the line
size_t end_of_file_name = request->body.find("\"",found_file + 1);
You'll have to change that to
size_t end_of_file_name = request->body.find("\"", found_file + 9 + 1); // 9 because that's the length of "filename=" and 1 to start at the character after the "
Then change
std::string filename(request->body, found_file+10, end_of_file_name - found_file);
To
std::string filename(request->body, found_file + 10, end_of_file_name - (found_file + 10));
You might want to add another variable to quit having to add 10
all the time as well.
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