Add support for EOT and OTF font types

internal/matchers/font.go

@@ -9,5 +9,19 @@ func Woff(in []byte) bool {
 
 // Woff2 matches a Web Open Font Format version 2 file.
 func Woff2(in []byte) bool {
-	return len(in) > 4 && bytes.Equal(in[:4], []byte("wOF2"))
+	return bytes.HasPrefix(in, []byte("wOF2"))
+}
+
+// Otf matches an OpenType font file.
+func Otf(in []byte) bool {
+	return bytes.HasPrefix(in, []byte{0x4F, 0x54, 0x54, 0x4F, 0x00})
+}
+
+// Eot matches an Embedded OpenType font file.
+func Eot(in []byte) bool {
+	return len(in) > 35 &&
+		bytes.Equal(in[34:36], []byte{0x4C, 0x50}) &&
+		(bytes.Equal(in[8:11], []byte{0x02, 0x00, 0x01}) ||
+			bytes.Equal(in[8:11], []byte{0x01, 0x00, 0x00}) ||
+			bytes.Equal(in[8:11], []byte{0x02, 0x00, 0x02}))
 }

mime_test.go

@@ -123,6 +123,8 @@ var files = map[string]*node{
 	// fonts
 	"woff.woff":   woff,
 	"woff2.woff2": woff2,
+	"otf.otf":     otf,
+	"eot.eot":     eot,
 
 	// XML and subtypes of XML
 	"xml.xml":   xml,

supported_mimes.md

@@ -1,4 +1,4 @@
-## 112 Supported MIME types
+## 114 Supported MIME types
 This file is automatically generated when running tests. Do not edit manually.
 
 Extension | MIME type
@@ -103,6 +103,8 @@ Extension | MIME type
 **crx** | application/x-chrome-extension
 **woff** | font/woff
 **woff2** | font/woff2
+**otf** | font/otf
+**eot** | application/vnd.ms-fontobject
 **wasm** | application/wasm
 **shx** | application/octet-stream
 **shp** | application/octet-stream

tree.go

@@ -9,8 +9,8 @@ var root = newNode("application/octet-stream", "", matchers.True,
 	sevenZ, zip, pdf, xls, ppt, doc, ps, psd, ogg, png, jpg, gif, webp, exe, elf,
 	ar, tar, xar, bz2, fits, tiff, bmp, ico, mp3, flac, midi, ape, musePack, amr,
 	wav, aiff, au, mpeg, quickTime, mqv, mp4, webM, threeGP, threeG2, avi, flv,
-	mkv, asf, aac, voc, aMp4, m4a, txt, gzip, class, swf, crx, woff, woff2, wasm,
-	shx, dbf, dcm, rar, djvu, mobi, lit, bpg, sqlite3, dwg,
+	mkv, asf, aac, voc, aMp4, m4a, txt, gzip, class, swf, crx, woff, woff2, otf,
+	eot, wasm, shx, dbf, dcm, rar, djvu, mobi, lit, bpg, sqlite3, dwg,
 )
 
 // The list of nodes appended to the root node
@@ -98,6 +98,8 @@ var (
 	crx       = newNode("application/x-chrome-extension", "crx", matchers.Crx)
 	woff      = newNode("font/woff", "woff", matchers.Woff)
 	woff2     = newNode("font/woff2", "woff2", matchers.Woff2)
+	otf       = newNode("font/otf", "otf", matchers.Otf)
+	eot       = newNode("application/vnd.ms-fontobject", "eot", matchers.Eot)
 	wasm      = newNode("application/wasm", "wasm", matchers.Wasm)
 	shp       = newNode("application/octet-stream", "shp", matchers.Shp)
 	shx       = newNode("application/octet-stream", "shx", matchers.Shx, shp)