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Versions: 21
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Contents
# frozen_string_literal: true
module HTTPX
module Plugins::Multipart
module MimeTypeDetector
module_function
DEFAULT_MIMETYPE = "application/octet-stream"
# inspired by https://github.com/shrinerb/shrine/blob/master/lib/shrine/plugins/determine_mime_type.rb
if defined?(MIME::Types)
def call(_file, filename)
mime = MIME::Types.of(filename).first
mime.content_type if mime
end
elsif defined?(MimeMagic)
def call(file, *)
mime = MimeMagic.by_magic(file)
mime.type if mime
end
elsif system("which file", out: File::NULL)
require "open3"
def call(file, *)
return if file.eof? # file command returns "application/x-empty" for empty files
Open3.popen3(*%w[file --mime-type --brief -]) do |stdin, stdout, stderr, thread|
begin
::IO.copy_stream(file, stdin.binmode)
rescue Errno::EPIPE
end
file.rewind
stdin.close
status = thread.value
# call to file command failed
if status.nil? || !status.success?
$stderr.print(stderr.read)
else
output = stdout.read.strip
if output.include?("cannot open")
$stderr.print(output)
else
output
end
end
end
end
else
def call(*); end
end
end
end
end
Version data entries
21 entries across 21 versions & 1 rubygems