94 lines
1.9 KiB
Go
94 lines
1.9 KiB
Go
package commands
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import (
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"errors"
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"time"
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"github.com/emersion/go-imap"
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"github.com/emersion/go-imap/utf7"
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)
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// Append is an APPEND command, as defined in RFC 3501 section 6.3.11.
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type Append struct {
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Mailbox string
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Flags []string
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Date time.Time
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Message imap.Literal
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}
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func (cmd *Append) Command() *imap.Command {
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var args []interface{}
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mailbox, _ := utf7.Encoding.NewEncoder().String(cmd.Mailbox)
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args = append(args, imap.FormatMailboxName(mailbox))
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if cmd.Flags != nil {
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flags := make([]interface{}, len(cmd.Flags))
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for i, flag := range cmd.Flags {
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flags[i] = imap.RawString(flag)
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}
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args = append(args, flags)
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}
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if !cmd.Date.IsZero() {
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args = append(args, cmd.Date)
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}
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args = append(args, cmd.Message)
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return &imap.Command{
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Name: "APPEND",
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Arguments: args,
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}
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}
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func (cmd *Append) Parse(fields []interface{}) (err error) {
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if len(fields) < 2 {
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return errors.New("No enough arguments")
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}
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// Parse mailbox name
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if mailbox, err := imap.ParseString(fields[0]); err != nil {
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return err
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} else if mailbox, err = utf7.Encoding.NewDecoder().String(mailbox); err != nil {
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return err
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} else {
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cmd.Mailbox = imap.CanonicalMailboxName(mailbox)
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}
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// Parse message literal
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litIndex := len(fields) - 1
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var ok bool
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if cmd.Message, ok = fields[litIndex].(imap.Literal); !ok {
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return errors.New("Message must be a literal")
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}
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// Remaining fields a optional
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fields = fields[1:litIndex]
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if len(fields) > 0 {
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// Parse flags list
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if flags, ok := fields[0].([]interface{}); ok {
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if cmd.Flags, err = imap.ParseStringList(flags); err != nil {
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return err
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}
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for i, flag := range cmd.Flags {
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cmd.Flags[i] = imap.CanonicalFlag(flag)
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}
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fields = fields[1:]
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}
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// Parse date
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if len(fields) > 0 {
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if date, ok := fields[0].(string); !ok {
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return errors.New("Date must be a string")
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} else if cmd.Date, err = time.Parse(imap.DateTimeLayout, date); err != nil {
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return err
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}
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}
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}
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return
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}
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