/
mod.go
82 lines (65 loc) · 1.71 KB
/
mod.go
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package ulist
import (
"errors"
"fmt"
"io/ioutil"
"net/mail"
"os"
"strings"
"time"
"github.com/wansing/ulist/mailutil"
)
// caller must close the returned file
func (u *Ulist) Open(list *List, filename string) (*os.File, error) {
if strings.Contains(filename, "..") || strings.Contains(filename, "/") {
return nil, errors.New("invalid filename")
}
file, err := os.Open(u.StorageFolder(list.ListInfo) + "/" + filename)
if err != nil {
return nil, err
}
return file, nil
}
func (u *Ulist) ReadMessage(list *List, filename string) (*mailutil.Message, error) {
file, err := u.Open(list, filename)
if err != nil {
return nil, err
}
defer file.Close()
return mailutil.ReadMessage(file)
}
func (u *Ulist) ReadHeader(list *List, filename string) (mail.Header, error) {
file, err := u.Open(list, filename)
if err != nil {
return nil, err
}
defer file.Close()
if msg, err := mail.ReadMessage(file); err == nil {
return msg.Header, nil
} else {
return nil, err
}
}
// Saves the message into an eml file with a unique name within the storage folder. The filename is not returned.
func (u *Ulist) Save(list *List, m *mailutil.Message) error {
err := os.MkdirAll(u.StorageFolder(list.ListInfo), 0700)
if err != nil {
return err
}
file, err := ioutil.TempFile(u.StorageFolder(list.ListInfo), fmt.Sprintf("%010d-*.eml", time.Now().Unix()))
if err != nil {
return err
}
defer file.Close()
if err = m.Save(file); err != nil {
_ = os.Remove(file.Name())
return err
}
return nil
}
func (u *Ulist) DeleteModeratedMail(list *List, filename string) error {
if filename == "" {
return errors.New("delete: filename is empty")
}
return os.Remove(u.StorageFolder(list.ListInfo) + "/" + filename)
}