Get filename from URL without it in JavaScript

Question

How can I get the filename from a given URL in PhoneGap?

In JavaScript, I used something like this:

var uri = encodeURI("http://www.openerpspain.com/descargas-documentacion?download=2");

My application downloads the file, but I have to manually set the file name. To illustrate, when I call

onclick="descarga('http://www.openerpspain.com/descargas-documentacion?download=2')"

this function is run:

function descarga(URL){
    var rutaarchivo = "file:///sdcard/data/com.protocolo/test1.pdf";
    alert(rutaarchivo);
    var filetransfer = new FileTransfer();
    filetransfer.download(URL, rutaarchivo,
        function(entry){
          alert("Download complete : " + entry.fullPath);
        },function(error) {
          alert("download error source " + error.source);
        });
}

This saves the download to ../com.protocolo, and its filename is test.pdf. I want to be able to save it as the name it is set as on the server (*manual_openerp.230209.pdf*) at the real URL, *...//www.openerpspain.com/descargas/manual_openerp.230209.pdf*.

How do I do that?

score 2 · Answer 1 · edited Jan 15 '15 at 22:50

2

String fileName = url.substring(url.lastIndexOf('/') + 1);

where url is the complete path of your file.

edited Jan 15 '15 at 22:50

Peter Mortensen

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answered Apr 11 '13 at 10:37

Shankar Agarwal

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Thanks, but if the URL doesn't have filename after "/". Will be possible to get the filename? If not, i ll use this , thanks. – Burasuko Apr 11 '13 at 10:41
Probably all the url have file name or something after "/" – Shankar Agarwal Apr 11 '13 at 11:03
Thanks :), i ll use it at the moment :) – Burasuko Apr 11 '13 at 11:31

score 2 · Answer 2 · edited Jan 15 '15 at 22:50

2

Use:

url="file:///sdcard/data/com.protocolo/test1.pdf?getVar=value";
url.replace(/\?.*$/,"").replace(/.*\//,"");

edited Jan 15 '15 at 22:50

Peter Mortensen

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answered Apr 11 '13 at 11:55

user2153497

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score 0 · Answer 3 · edited May 23 '17 at 11:48

0

This is basically asking How to get the file name from a full path using JavaScript?. Here, the solution was:

var filename = url.replace(/^.*[\\\/]/, '');

edited May 23 '17 at 11:48

Community

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1

answered Apr 11 '13 at 14:17

Phil

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score 0 · Answer 4 · edited Jan 15 '15 at 22:58

I added in my URLs parameters. Then in PhoneGap I used:

function getParameterByName( name,href ){
    name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
    var regexS = "[\\?&]"+name+"=([^&#]*)";
    var regex = new RegExp( regexS );
    var results = regex.exec( href );
    if( results == null )
      return "";
    else
      return decodeURIComponent(results[1].replace(/\+/g, " "));
}

Called from :

var filename = getParameterByName ("nombrefichero", url);

So this way I can get example.pdf from:

http://www.download.com/fake/example.pdf?nombrefichero=example.pdf

And then I can download it, and save it where I want.

Get filename from URL without it in JavaScript

4 Answers4