module MIME::Multipart
Overview
The MIME::Multipart
module contains utilities for parsing MIME multipart
messages, which contain multiple body parts, each containing a header section
and binary body. The multipart/form-data
content-type has a separate set of
utilities in the HTTP::FormData
module.
Defined in:
mime/multipart/builder.crmime/multipart/parser.cr
mime/multipart.cr
Class Method Summary
-
.build(io : IO, boundary : String = Multipart.generate_boundary, &)
Yields a
Multipart::Builder
to the given block, writing to io and using boundary. -
.build(boundary : String = Multipart.generate_boundary, &)
Yields a
Multipart::Builder
to the given block, returning the generated message as aString
. -
.generate_boundary : String
Returns a unique string suitable for use as a multipart boundary.
-
.parse(io, boundary, &)
Parses a MIME multipart message, yielding
HTTP::Headers
and anIO
for each body part. -
.parse(request : HTTP::Request, &)
Parses a MIME multipart message, yielding
HTTP::Headers
and anIO
for each body part. -
.parse_boundary(content_type)
Extracts the multipart boundary from the Content-Type header.
Class Method Detail
Yields a Multipart::Builder
to the given block, writing to io and
using boundary. #finish
is automatically called on the builder.
Yields a Multipart::Builder
to the given block, returning the generated
message as a String
.
Returns a unique string suitable for use as a multipart boundary.
require "mime/multipart"
MIME::Multipart.generate_boundary # => "---------------------------dQu6bXHYb4m5zrRC3xPTGwV"
Parses a MIME multipart message, yielding HTTP::Headers
and an IO
for
each body part.
Please note that the IO object yielded to the block is only valid while the block is executing. The IO is closed as soon as the supplied block returns.
require "mime/multipart"
multipart = "--aA40\r\nContent-Type: text/plain\r\n\r\nbody\r\n--aA40--"
MIME::Multipart.parse(IO::Memory.new(multipart), "aA40") do |headers, io|
headers["Content-Type"] # => "text/plain"
io.gets_to_end # => "body"
end
See: Multipart::Parser
Parses a MIME multipart message, yielding HTTP::Headers
and an IO
for
each body part.
Please note that the IO object yielded to the block is only valid while the block is executing. The IO is closed as soon as the supplied block returns.
require "http"
require "mime/multipart"
headers = HTTP::Headers{"Content-Type" => "multipart/mixed; boundary=aA40"}
body = "--aA40\r\nContent-Type: text/plain\r\n\r\nbody\r\n--aA40--"
request = HTTP::Request.new("POST", "/", headers, body)
MIME::Multipart.parse(request) do |headers, io|
headers["Content-Type"] # => "text/plain"
io.gets_to_end # => "body"
end
See: Multipart::Parser
Extracts the multipart boundary from the Content-Type header. May return
nil
is the boundary was not found.
require "mime/multipart"
MIME::Multipart.parse_boundary("multipart/mixed; boundary=\"abcde\"") # => "abcde"