Thanks, looks good to me.
\r\n" + - "--INNER--\r\n" + - "--OUTER\r\n" + - "Content-Type: application/pdf; name=\"invoice.pdf\"\r\n" + - "Content-Disposition: attachment; filename=\"invoice.pdf\"\r\n" + - "Content-Transfer-Encoding: base64\r\n" + - "\r\n" + - "JVBERi0xLjQK\r\n" + - "--OUTER--\r\n" - -func main() { - log := slog.New(slog.NewTextHandler(os.Stderr, &slog.HandlerOptions{Level: slog.LevelWarn})) - r := bytes.NewReader([]byte(sampleEML)) - - // EnsurePart fully parses header + walks the MIME tree given the size. - p, err := message.EnsurePart(log, false, r, int64(len(sampleEML))) - if err != nil { - fmt.Fprintf(os.Stderr, "FAIL: parse error: %v\n", err) - os.Exit(1) - } - - fmt.Println("=== mox/message standalone parse OK ===") - if p.Envelope != nil { - e := p.Envelope - fmt.Printf("Subject: %s\n", e.Subject) - fmt.Printf("MessageID: %s\n", e.MessageID) - fmt.Printf("InReplyTo: %s\n", e.InReplyTo) - if len(e.From) > 0 { - fmt.Printf("From: %s@%s\n", e.From[0].User, e.From[0].Host) - } - } - fmt.Printf("Top type: %s/%s\n", p.MediaType, p.MediaSubType) - - // Walk the tree, summarizing each leaf — proves multipart traversal works. - var textBody string - var attachments int - var walk func(parts []message.Part, depth int) - walk = func(parts []message.Part, depth int) { - for i := range parts { - sp := &parts[i] - indent := strings.Repeat(" ", depth) - disp := "" - if sp.ContentDisposition != nil { - disp = " [" + *sp.ContentDisposition + "]" - } - fmt.Printf("%s- %s/%s%s\n", indent, sp.MediaType, sp.MediaSubType, disp) - if sp.ContentDisposition != nil && strings.EqualFold(*sp.ContentDisposition, "attachment") { - attachments++ - } - if sp.MediaType == "TEXT" && sp.MediaSubType == "PLAIN" && textBody == "" { - if buf, rerr := readPart(sp); rerr == nil { - textBody = string(buf) - } - } - walk(sp.Parts, depth+1) - } - } - fmt.Println("Structure:") - walk(p.Parts, 1) - - fmt.Printf("\nAttachments found: %d\n", attachments) - fmt.Printf("text/plain body:\n%s\n", indentBlock(textBody)) - fmt.Println("=== SPIKE PASSED: Mox message parsing is usable standalone ===") -} - -func readPart(p *message.Part) ([]byte, error) { - rd := p.Reader() - var b bytes.Buffer - _, err := b.ReadFrom(rd) - return b.Bytes(), err -} - -func indentBlock(s string) string { - out := []string{} - for _, line := range strings.Split(strings.TrimRight(s, "\r\n"), "\n") { - out = append(out, " | "+strings.TrimRight(line, "\r")) - } - return strings.Join(out, "\n") -}