wt4 WFileDropWidget does not work
Added by Hyeoni Hwasoo over 7 years ago
Hi,
I have a problem with WFileDropWidget, it fails all the time.
I hope I'm not the only one ...
#include <Wt/WApplication.h>
#include <Wt/WEnvironment.h>
#include <Wt/WFileDropWidget.h>
#include <Wt/WLogger.h>
class TestApplication : public Wt::WApplication
{
public:
TestApplication(const Wt::WEnvironment& env);
~TestApplication() { }
};
TestApplication::TestApplication(const Wt::WEnvironment& env) : Wt::WApplication(env)
{
setTitle("Test WFileDropWidget");
Wt::WFileDropWidget * w = new Wt::WFileDropWidget();
root()->addWidget(std::unique_ptr<Wt::WWidget>(w));
w->drop().connect([](std::vector<Wt::WFileDropWidget::File*> files)
{
Wt::log("info") << "files dropped : " << files.size();
});
w->newUpload().connect([](Wt::WFileDropWidget::File * file)
{
Wt::log("info") << "file dropped : " << file->clientFileName();
});
w->uploaded().connect([](Wt::WFileDropWidget::File * file)
{
Wt::log("info") << "file sent : " << file->clientFileName();
});
w->tooLarge().connect([]()
{
Wt::log("error") << "size too large !";
});
w->uploadFailed().connect([](Wt::WFileDropWidget::File * file)
{
Wt::log("error") << "sending failed for " << file->clientFileName();
});
}
int main(int argc, char **argv)
{
return Wt::WRun(argc, argv, [](const Wt::WEnvironment& env) {
return Wt::cpp14::make_unique<TestApplication>(env);
});
}
</code>
Any help would be appreciate
Hyeoni
Replies (11)
RE: wt4 WFileDropWidget does not work - Added by Roel Standaert over 7 years ago
In what way does it fail? Do you get an error message? That code seems ok. I've tested it and it works for me.
RE: wt4 WFileDropWidget does not work - Added by Hyeoni Hwasoo over 7 years ago
Oh, sad news for me ... :-D
The launch :
cd bin && ./testbug.wt --docroot . --approot . --deploy-path / --http-address 0.0.0.0 --http-port 7777
The log :
[2017-Aug-28 09:40:45.066] 3500 - [info] "config: reading Wt config file: /etc/wt/wt_config.xml (location = './testbug.wt')"
[2017-Aug-28 09:40:45.068] 3500 - [info] "WServer/wthttp: initializing built-in wthttpd"
[2017-Aug-28 09:40:45.069] 3500 - [info] "wthttp: started server: http://0.0.0.0:7777"
[2017-Aug-28 09:40:48.793] 3500 - [info] "Wt: session created (#sessions = 1)"
[2017-Aug-28 09:40:48.793] 3500 [/ JVWd5CVYl0CJEYjZ] [info] "WEnvironment: UserAgent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0"
192.168.97.100 - - [2017-Aug-28 09:40:48.796] "GET / HTTP/1.1" 200 2218
[2017-Aug-28 09:40:48.796] 3500 - [info] "WebRequest: took 3.059 ms"
192.168.97.100 - - [2017-Aug-28 09:40:48.889] "GET /?wtd=JVWd5CVYl0CJEYjZ&request=style&page=1 HTTP/1.1" 200 88
[2017-Aug-28 09:40:48.889] 3500 - [info] "WebRequest: took 46.617 ms"
192.168.97.100 - - [2017-Aug-28 09:40:48.896] "GET /?wtd=JVWd5CVYl0CJEYjZ&sid=-1335069146&scrW=2560&scrH=1440&tz=0&htmlHistory=true&deployPath=%2F&request=script&rand=675547432 HTTP/1.1" 200 38338
[2017-Aug-28 09:40:48.896] 3500 - [info] "WebRequest: took 9.535 ms"
192.168.97.100 - - [2017-Aug-28 09:40:48.910] "GET /resources/moz-transitions.css HTTP/1.1" 304 0
192.168.97.100 - - [2017-Aug-28 09:40:48.910] "GET /resources/themes/default/wt.css HTTP/1.1" 304 0
192.168.97.100 - - [2017-Aug-28 09:40:48.990] "GET /favicon.ico HTTP/1.1" 404 85
192.168.97.100 - - [2017-Aug-28 09:40:48.998] "POST /?wtd=JVWd5CVYl0CJEYjZ HTTP/1.1" 200 51
[2017-Aug-28 09:40:48.998] 3500 - [info] "WebRequest: took 0.224 ms"
[2017-Aug-28 09:41:31.257] 3500 [/ JVWd5CVYl0CJEYjZ] [info] "files dropped : 1"
192.168.97.100 - - [2017-Aug-28 09:41:31.258] "POST /?wtd=JVWd5CVYl0CJEYjZ HTTP/1.1" 200 142
[2017-Aug-28 09:41:31.258] 3500 - [info] "WebRequest: took 0.561 ms"
[2017-Aug-28 09:41:31.275] 3500 [/ JVWd5CVYl0CJEYjZ] [info] "file dropped : README"
192.168.97.100 - - [2017-Aug-28 09:41:31.275] "POST /?wtd=JVWd5CVYl0CJEYjZ HTTP/1.1" 200 156
[2017-Aug-28 09:41:31.275] 3500 - [info] "WebRequest: took 0.45 ms"
192.168.97.100 - - [2017-Aug-28 09:41:31.298] "POST /?wtd=JVWd5CVYl0CJEYjZ&request=resource&resource=oobwzjl&rand=0 HTTP/1.1" 404 0
[2017-Aug-28 09:41:31.298] 3500 - [info] "WebRequest: took 0.529 ms"
[2017-Aug-28 09:41:31.362] 3500 [/ JVWd5CVYl0CJEYjZ] [error] "sending failed for README"
upload failed WFileDropWidget::stopReceiving()
192.168.97.100 - - [2017-Aug-28 09:41:31.362] "POST /?wtd=JVWd5CVYl0CJEYjZ HTTP/1.1" 200 0
[2017-Aug-28 09:41:31.362] 3500 - [info] "WebRequest: took 68.624 ms"
192.168.97.100 - - [2017-Aug-28 09:41:31.362] "POST /?wtd=JVWd5CVYl0CJEYjZ HTTP/1.1" 200 75
[2017-Aug-28 09:41:31.362] 3500 - [info] "WebRequest: took 0.399 ms"
As you can see there is a 404 error on "POST /?wtd=JVWd5CVYl0CJEYjZ&request=resource&resource=oobwzjl&rand=0 HTTP/1.1"
RE: wt4 WFileDropWidget does not work - Added by Hyeoni Hwasoo over 7 years ago
The strange thing is if i put directly the url into my browser there is no 404 error, it is okay with a 200 status ...
RE: wt4 WFileDropWidget does not work - Added by Hyeoni Hwasoo over 7 years ago
Ok, the 404 error is triggered by this line : https://github.com/emweb/wt/blob/7140b58b2c227f2220c35e5f3b170d06c6a51e62/src/Wt/WFileDropWidget.C#L48
const std::string *fileId = request.getParameter("file-id");
if (fileId == 0 || (*fileId).empty()) {
response.setStatus(404);
return;
}
RE: wt4 WFileDropWidget does not work - Added by Hyeoni Hwasoo over 7 years ago
I think I got it : it seems okay with (CgiParser.C) :
#define WT_HAVE_GNU_REGEX
RE: wt4 WFileDropWidget does not work - Added by Roel Standaert over 7 years ago
Could you maybe provide a HAR file with the requests you are sending/responses you are receiving? See https://redmine.webtoolkit.eu/projects/wt/wiki/Issue_Tracker_Guidelines#How-to-create-a-HAR-file
RE: wt4 WFileDropWidget does not work - Added by Hyeoni Hwasoo over 7 years ago
Here it is.
| Archive 17-08-29 12-13-38.har (181 KB) Archive 17-08-29 12-13-38.har | Network log without WT_HAVE_GNU_REGEX |
RE: wt4 WFileDropWidget does not work - Added by Roel Standaert over 7 years ago
I've tested your failing request, and that gets parsed correctly when I test it. Maybe it has to do with the std::regex support of your compiler? What distribution and compiler version are you using?
RE: wt4 WFileDropWidget does not work - Added by Hyeoni Hwasoo over 7 years ago
My distribution is Devuan Jessie 1 (same as Debian Jessie 8) amd64 and the compiler is gcc 4.9.
Kernel 3.16.0-4 SMP Debian 3.16.43-2+deb8u2 (2017-06-26) x86_64 GNU/Linux
gcc : 4.9.2 (Debian 4.9.2-10)
I think there is nothing special here ... but maybe it is a buggy version for std::regex because i had to change another regex (from the migration from 3.3.6 to 4.0.0)
RE: wt4 WFileDropWidget does not work - Added by Roel Standaert over 7 years ago
We did switch from boost::regex (Perl-compatible regular expressions) to std::regex (ECMAScript regular expressions), so that may be why you needed to change a regex (if that was in your code).
For me, the parsing is successful, even when using g--4.9 on Devuan Jessie.
RE: wt4 WFileDropWidget does not work - Added by Hyeoni Hwasoo over 7 years ago
I'm agree with you that it is weired.
I have to admit that it is my installation that must be bizarre ..
Thx again for testing !
Hyeoni