Serving files with THttpServer

ROOT
1

Is it possible to configure THttpServer like apache2 to serve files located in the directory dir, so that the client loads css and img files, for example

<html>
<head>
  <link rel="stylesheet" href="style.css">
</head>
<body>
<img src="image.jpg"> 
</body>
</html>

Cheers, Rok

2

Welcome to the ROOT Forum!
See the THttpServer Class Reference and especially THttpServer::AddLocation()

3

Thanks, it works as you suggested. I append the example:

root [0]
Processing test.cxx...
Info in <THttpEngine::Create>: Starting HTTP server on port 8080
void test(int port=8080){
  auto serv=new THttpServer(Form("http:%d",port));
  serv->AddLocation("www/",".");
  gSystem->Exec(Form("curl http://localhost:%d/www/%s.cxx",port,__func__));
  cout << endl;
}

Cheers, Rok

1 Like
4

Should files served in this way be openable using TFile::Open() ?
When I try, I get errors like this:

root [0] auto inFile = TFile::Open("http://localhost:8080/currentdir/out.root");
Error in <TWebFile::GetLine>: error receiving data from host localhost
Error in <TWebFile::GetLine>: error receiving data from host localhost
Error in <TWebFile::GetFromWeb10>: error receiving expected amount of data (got 0, expected 4) from host localhost

I can open the file at the same URL using a web browser and wget.

5

Hi @cosmic,

Yes, seems to be ROOT cannot read files via http protocol, which are served by THttpServer.
I will try to investigate why.

Regards,
Sergey

6

Problem fixed in master and 6.22 branch.

1 Like
7

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