Курнат Андрей
41 lines
701 B
Go
41 lines
701 B
Go
package fsutil
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import (
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"io"
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"net/http"
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"os"
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)
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// DetectMime detect a file mime type. alias of MimeType()
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func DetectMime(path string) string {
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return MimeType(path)
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}
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// MimeType get file mime type name. eg "image/png"
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func MimeType(path string) (mime string) {
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file, err := os.Open(path)
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if err != nil {
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return
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}
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return ReaderMimeType(file)
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}
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// ReaderMimeType get the io.Reader mimeType
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//
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// Usage:
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//
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// file, err := os.Open(filepath)
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// if err != nil {
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// return
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// }
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// mime := ReaderMimeType(file)
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func ReaderMimeType(r io.Reader) (mime string) {
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var buf [MimeSniffLen]byte
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n, _ := io.ReadFull(r, buf[:])
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if n == 0 {
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return ""
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}
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return http.DetectContentType(buf[:n])
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}
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