Sākums Izpētīt Palīdzība
Reģistrēties Pierakstīties
sbakhtina
/
SQL
1
0
Atdalīts 0
Faili Problēmas 0 Izmaiņu pieprasījumi 0 Vikivietne
Koks: 48e4ed10dd
Atzari Tagi
SQL
/
node_modules
/
dicer
Bakhtina Sofya b84cb877be 1st comm 2 nedēļas atpakaļ
..
bench b84cb877be 1st comm 2 nedēļas atpakaļ
lib b84cb877be 1st comm 2 nedēļas atpakaļ
test b84cb877be 1st comm 2 nedēļas atpakaļ
.travis.yml b84cb877be 1st comm 2 nedēļas atpakaļ
LICENSE b84cb877be 1st comm 2 nedēļas atpakaļ
README.md b84cb877be 1st comm 2 nedēļas atpakaļ
package.json b84cb877be 1st comm 2 nedēļas atpakaļ

README.md

Description

A very fast streaming multipart parser for node.js.

Benchmarks can be found here.

Requirements

Install

npm install dicer

Examples

  • Parse an HTTP form upload

    var inspect = require('util').inspect,
http = require('http');

var Dicer = require('dicer');

// quick and dirty way to parse multipart boundary
var RE_BOUNDARY = /^multipart\/.+?(?:; boundary=(?:(?:"(.+)")|(?:([^\s]+))))$/i,
HTML = Buffer.from('<html><head></head><body>\
                    <form method="POST" enctype="multipart/form-data">\
                     <input type="text" name="textfield"><br />\
                     <input type="file" name="filefield"><br />\
                     <input type="submit">\
                    </form>\
                    </body></html>'),
PORT = 8080;

http.createServer(function(req, res) {
var m;
if (req.method === 'POST'
  && req.headers['content-type']
  && (m = RE_BOUNDARY.exec(req.headers['content-type']))) {
var d = new Dicer({ boundary: m[1] || m[2] });

d.on('part', function(p) {
  console.log('New part!');
  p.on('header', function(header) {
    for (var h in header) {
      console.log('Part header: k: ' + inspect(h)
                  + ', v: ' + inspect(header[h]));
    }
  });
  p.on('data', function(data) {
    console.log('Part data: ' + inspect(data.toString()));
  });
  p.on('end', function() {
    console.log('End of part\n');
  });
});
d.on('finish', function() {
  console.log('End of parts');
  res.writeHead(200);
  res.end('Form submission successful!');
});
req.pipe(d);
} else if (req.method === 'GET' && req.url === '/') {
res.writeHead(200);
res.end(HTML);
} else {
res.writeHead(404);
res.end();
}
}).listen(PORT, function() {
console.log('Listening for requests on port ' + PORT);
});

API

Dicer is a WritableStream

Dicer (special) events

  • finish() - Emitted when all parts have been parsed and the Dicer instance has been ended.

  • part(< PartStream >stream) - Emitted when a new part has been found.

  • preamble(< PartStream >stream) - Emitted for preamble if you should happen to need it (can usually be ignored).

  • trailer(< Buffer >data) - Emitted when trailing data was found after the terminating boundary (as with the preamble, this can usually be ignored too).

Dicer methods

  • (constructor)(< object >config) - Creates and returns a new Dicer instance with the following valid config settings:

    • boundary - string - This is the boundary used to detect the beginning of a new part.

    • headerFirst - boolean - If true, preamble header parsing will be performed first.

    • maxHeaderPairs - integer - The maximum number of header key=>value pairs to parse Default: 2000 (same as node's http).

  • setBoundary(< string >boundary) - (void) - Sets the boundary to use for parsing and performs some initialization needed for parsing. You should only need to use this if you set headerFirst to true in the constructor and are parsing the boundary from the preamble header.

PartStream is a ReadableStream

PartStream (special) events

  • header(< object >header) - An object containing the header for this particular part. Each property value is an array of one or more string values.