Hi, first of all sorry for my english.
I have to limit the download speed for a file and only the download of the
file.
I explain what i mean. I do not want to limit the bandwidth access to my
website but only the download speed for a file and only this download.
If I limit the bandwith for a specific user to limit the download speed,
all the access to my website will be restrained.
I didnt find much informations to do this. I did this (that is working,
limit the average to 300KB/sec), but i dont know if it is a good way or not
:
var fs = require('fs');
>
> var path = require('path');
>
> var filesize = require('filesize');
>
> var http = require('http');
>
>
>> function onRequest(request, response){
>
> var filepath = './public/test.mp3';
>
> var file = {
>
> path: filepath,
>
> name: path.basename(filepath),
>
> size: (fs.statSync(filepath)).size
>
> };
>
> console.log('file :' + file.name, 'size :' + filesize(file.size));
>
>
>> fs.open(file.path, 'r', function (err, fd){
>
> response.writeHead(200,{
>
> 'Content-Type': 'application/octet-stream',
>
> 'Content-Length': file.size,
>
> 'Content-Disposition': "attachment;filename="+file.name
>
> });
>
>
>>
>> var buff = new Buffer(4096);
>
> var position = 0;
>
> var id = setInterval(function (){
>
> var quota = 307200; //Byte par seconde
>
>
>> request.on('close', function(){
>
> console.log(truc);
>
> clearInterval(id);
>
> response.end();
>
> fs.close(fd);
>
> quota = 0;
>
> });
>
>
>> while (quota > 0){
>
> var bytesRead = fs.readSync(fd, buff, 0, buff.length,
>> position);
>
> response.write(buff);
>
> position += bytesRead;
>
> quota -= bytesRead;
>
>
>> if (bytesRead < buff.length){
>
> console.log('over');
>
> clearInterval(id);
>
> response.end();
>
> fs.close(fd);
>
> break;
>
> }
>
> }
>
> }, 1000);
>
> });
>
> }
>
>
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