func (m *MessageAsMimeTree) Read(p []byte) (int, error) {
if m.rs == nil {
m.rs = &readState{}
var printM func(w io.Writer, depth int, m *mime.MimePart)
printM = func(w io.Writer, depth int, m *mime.MimePart) {
fmt.Fprintf(w, "%s%s\n", strings.Repeat("-", depth), mime.MimeTypeTxt(m.MimeType))
if m.Child != nil {
printM(w, depth+1, m.Child)
}
for cur := m.Next; cur != nil; cur = cur.Next {
printM(w, depth, cur)
}
}
f, err := os.Open(m.path)
if err != nil {
m.rs = nil
return 0, err
}
defer f.Close()
mtree, err := mime.GetMimeTree(f, 10)
if err != nil {
m.rs = nil
return 0, err
}
buf := &bytes.Buffer{}
printM(buf, 0, mtree)
m.rs.r = buf
}
ret, err := m.rs.r.Read(p)
if err != nil {
m.rs = nil
}
return ret, err
}
func partSummary(m *mime.MimePart) *bytes.Buffer {
name := ""
if m.Name != "" {
name = fmt.Sprintf("- %s ", m.Name)
}
str := fmt.Sprintf("\n\033[7m[-- %s %s- (%s) --]\n", mime.MimeTypeTxt(m.MimeType), name, util.SiteToHuman(int64(m.Buf.Len())))
return bytes.NewBufferString(str)
}