/
rfc5322.go
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/
rfc5322.go
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package converter
import (
"fmt"
"net/http"
"net/mail"
"strings"
)
// RFC5322ID is the ID for RFC5322 converter
const RFC5322ID ID = "rfc5322"
type rfc5322 struct{}
// NewRFC5322 returns a new message converter for RFC 5322 format
func NewRFC5322() Converter {
return &rfc5322{}
}
func (rfc *rfc5322) ID() ID {
return RFC5322ID
}
func (rfc *rfc5322) Convert(r *http.Request) (*Message, error) {
body, err := slurpBody(r)
if err != nil {
return nil, err
}
m, err := mail.ReadMessage(body)
if err != nil {
return nil, fmt.Errorf("failed to parse input: %w", err)
}
(body.Seek(0, 0))
return NewMessage(
m.Header.Get("From"),
parse(m.Header, "To"),
parse(m.Header, "Cc"),
parse(m.Header, "Bcc"),
body,
), nil
}
func parse(h mail.Header, key string) []string {
var list []string
hv := strings.TrimSpace(h.Get(key))
if len(hv) == 0 {
return list
}
for _, v := range strings.Split(hv, ",") {
list = append(list, strings.TrimSpace(v))
}
return list
}