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mimeinfo.go
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mimeinfo.go
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// Copyright 2015 Richard Lehane. 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.
package config
import (
"encoding/json"
"io/ioutil"
"path/filepath"
)
var mimeinfo = struct {
mi string
name string
versions string
zip string
gzip string
tar string
arc string
warc string
text string
}{
versions: "mime-info.json",
zip: "application/zip",
gzip: "application/gzip",
tar: "application/x-tar",
arc: "application/x-arc",
warc: "application/x-warc",
text: "text/plain",
}
// MIMEInfo returns the location of the MIMEInfo signature file.
func MIMEInfo() string {
if filepath.Dir(mimeinfo.mi) == "." {
return filepath.Join(siegfried.home, mimeinfo.mi)
}
return mimeinfo.mi
}
func MIMEVersion() []string {
byt, err := ioutil.ReadFile(filepath.Join(siegfried.home, mimeinfo.versions))
m := make(map[string][]string)
if err == nil {
err = json.Unmarshal(byt, &m)
if err == nil {
return m[mimeinfo.mi]
}
}
return nil
}
func ZipMIME() string {
return mimeinfo.zip
}
func TextMIME() string {
return mimeinfo.text
}
func SetMIMEInfo(mi string) func() private {
return func() private {
loc.fdd = "" // reset loc to prevent pollution
switch mi {
case "tika", "tika-mimetypes.xml":
mimeinfo.mi = "tika-mimetypes.xml"
mimeinfo.name = "tika"
case "freedesktop", "freedesktop.org", "freedesktop.org.xml":
mimeinfo.mi = "freedesktop.org.xml"
mimeinfo.name = "freedesktop.org"
default:
mimeinfo.mi = mi
mimeinfo.name = "mimeinfo"
}
return private{}
}
}