parse_multipart: Parse a multipart/form-data request

In webutils: Utility Functions for Developing Web Applications

Description

Parse a multipart/form-data request, which is usually generated from a HTML form submission. The parameters can include both text values as well as binary files. They can be distinguished from the presence of a filename attribute.

Usage

parse_multipart(body, boundary)

Arguments

body	body of the HTTP request. Must be raw or character vector.
boundary	boundary string as specified in the Content-Type request header.

Details

A multipart/form-data request consists of a single body which contains one or more values plus meta-data, separated using a boundary string. This boundary string is chosen by the client (e.g. the browser) and specified in the Content-Type header of the HTTP request. There is no escaping; it is up to the client to choose a boundary string that does not appear in one of the values.

The parser is written in pure R, but still pretty fast because it uses the regex engine.

Examples

## Not run: example form
demo_rhttpd()

## End(Not run)

Example output

starting httpd help server ... done
Opening http://localhost:12493/custom/test

webutils documentation built on April 29, 2020, 1:05 a.m.