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mimedump.go
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/
mimedump.go
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package main
import (
"bufio"
"flag"
"fmt"
"log"
"net/mail"
"os"
"strings"
mime "github.com/jhillyerd/go.enmime"
)
func main() {
var filename = flag.String("file", "", "path to email with a text/html part")
flag.Parse()
if filename == nil || strings.TrimSpace(*filename) == "" {
log.Fatal("--file is required")
}
fh, err := os.Open(*filename)
if err != nil {
log.Fatal(err)
}
msg, err := mail.ReadMessage(fh)
if err != nil {
log.Fatal(err)
}
m, err := mime.ParseMIMEBody(msg)
if err != nil {
log.Fatal(err)
}
fmt.Fprintf(os.Stderr, "HTML=%d Text=%d\n", len(m.HTML), len(m.Text))
if len(m.HTML) <= 0 {
log.Fatalf("No HTML part found in %s\n", *filename)
}
w := bufio.NewWriter(os.Stdout)
n, err := w.WriteString(m.HTML)
if err != nil {
log.Fatal(err)
}
fmt.Fprintf(os.Stderr, "Wrote %d bytes to standard output\n", n)
w.Flush()
}