Function BuildForwardBody

internal/outbound/forward.go:200–227

BuildForwardBody composes the text/plain body of a forward: the caller's optional comment, a Gmail-style divider, the original headers as a quote block, then the original text body if extraction succeeded.

(comment string, ctx ForwardContext)

// as a quote block, then the original text body if extraction
// succeeded.
func BuildForwardBody(comment string, ctx ForwardContext) string {
	var buf strings.Builder
	if c := strings.TrimRight(comment, "\r\n"); c != "" {
		buf.WriteString(c)
		buf.WriteString("\r\n\r\n")
	}
	buf.WriteString("---------- Forwarded message ---------\r\n")
	writeHeaderLine(&buf, "From", ctx.From)
	writeHeaderLine(&buf, "Date", ctx.Date)
	writeHeaderLine(&buf, "Subject", ctx.Subject)
	writeHeaderLine(&buf, "To", ctx.To)
	writeHeaderLine(&buf, "Cc", ctx.Cc)
	buf.WriteString("\r\n")
	if ctx.Text != "" {
		// Normalize line endings before re-emitting: a naive
		// ReplaceAll("\n","\r\n") turns existing "\r\n" into "\r\r\n",
		// which mail clients render as a literal CR. Real-world bodies
		// almost always arrive CRLF-terminated, so the lazy form would
		// fire on virtually every multi-line forward.
		text := strings.ReplaceAll(ctx.Text, "\r\n", "\n")
		text = strings.ReplaceAll(text, "\n", "\r\n")
		buf.WriteString(text)
		if !strings.HasSuffix(text, "\r\n") {
			buf.WriteString("\r\n")
		}
	}
	return buf.String()
}

// BuildForwardHTMLBody composes the text/html body of a forward. The
// caller's HTML comment is emitted as-is (the API contract treats