1package commands 2 3import ( 4 "errors" 5 "time" 6 7 "github.com/emersion/go-imap" 8 "github.com/emersion/go-imap/utf7" 9) 10 11// Append is an APPEND command, as defined in RFC 3501 section 6.3.11. 12type Append struct { 13 Mailbox string 14 Flags []string 15 Date time.Time 16 Message imap.Literal 17} 18 19func (cmd *Append) Command() *imap.Command { 20 var args []interface{} 21 22 mailbox, _ := utf7.Encoding.NewEncoder().String(cmd.Mailbox) 23 args = append(args, imap.FormatMailboxName(mailbox)) 24 25 if cmd.Flags != nil { 26 flags := make([]interface{}, len(cmd.Flags)) 27 for i, flag := range cmd.Flags { 28 flags[i] = imap.RawString(flag) 29 } 30 args = append(args, flags) 31 } 32 33 if !cmd.Date.IsZero() { 34 args = append(args, cmd.Date) 35 } 36 37 args = append(args, cmd.Message) 38 39 return &imap.Command{ 40 Name: "APPEND", 41 Arguments: args, 42 } 43} 44 45func (cmd *Append) Parse(fields []interface{}) (err error) { 46 if len(fields) < 2 { 47 return errors.New("No enough arguments") 48 } 49 50 // Parse mailbox name 51 if mailbox, err := imap.ParseString(fields[0]); err != nil { 52 return err 53 } else if mailbox, err = utf7.Encoding.NewDecoder().String(mailbox); err != nil { 54 return err 55 } else { 56 cmd.Mailbox = imap.CanonicalMailboxName(mailbox) 57 } 58 59 // Parse message literal 60 litIndex := len(fields) - 1 61 var ok bool 62 if cmd.Message, ok = fields[litIndex].(imap.Literal); !ok { 63 return errors.New("Message must be a literal") 64 } 65 66 // Remaining fields a optional 67 fields = fields[1:litIndex] 68 if len(fields) > 0 { 69 // Parse flags list 70 if flags, ok := fields[0].([]interface{}); ok { 71 if cmd.Flags, err = imap.ParseStringList(flags); err != nil { 72 return err 73 } 74 75 for i, flag := range cmd.Flags { 76 cmd.Flags[i] = imap.CanonicalFlag(flag) 77 } 78 79 fields = fields[1:] 80 } 81 82 // Parse date 83 if len(fields) > 0 { 84 if date, ok := fields[0].(string); !ok { 85 return errors.New("Date must be a string") 86 } else if cmd.Date, err = time.Parse(imap.DateTimeLayout, date); err != nil { 87 return err 88 } 89 } 90 } 91 92 return 93} 94