magicmime is a Go package which allows you to discover a file's mimetype by looking for magic numbers in its content. It could be used as a supplementary for Go's
mime package which only interprets the file extension to detect mimetypes. Internally, it implements libmagic(3) bindings.
Tested on Linux and Mac OS X, should be working on BSD. You could be able to build and make it working with Cygwin on Windows.
This uses the
libmagic library from the
file tool, so you might need to install the development package for
libmagic. On Debian or Ubuntu:
apt-get install libmagic-dev. On RHEL, CentOS or Fedora:
yum install file-devel. On Mac OS X:
brew install libmagic. If you don't have the required package, compilation will be terminated by an error saying
magic.h cannot be found.
In order to start, go get this repository:
go get github.com/rakyll/magicmime
See godoc examples.
Copyright 2013 Google Inc. All Rights Reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.