lotus/imap/client.go

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package imap
import (
"github.com/emersion/go-imap"
"github.com/emersion/go-imap/client"
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"time"
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)
var imapStatusFlags = []imap.StatusItem{
imap.StatusMessages,
imap.StatusRecent,
imap.StatusUidNext,
imap.StatusUidValidity,
imap.StatusUnseen,
}
type Client struct {
ic *client.Client
}
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func (c *Client) Append(name string, flags []string, date time.Time, msg imap.Literal) error {
return c.ic.Append(name, flags, date, msg)
}
func (c *Client) Copy(seqset *imap.SeqSet, dest string) error {
return c.ic.Copy(seqset, dest)
}
func (c *Client) Create(name string) error {
return c.ic.Create(name)
}
func (c *Client) Delete(name string) error {
return c.ic.Delete(name)
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}
func (c *Client) Fetch(folder string, start, end, limit uint32) ([]*imap.Message, error) {
// select the mailbox
mbox, err := c.ic.Select(folder, false)
if err != nil {
return nil, err
}
// setup fetch range
if end > mbox.Messages {
end = mbox.Messages
}
if end-start > limit {
start = end - (limit - 1)
}
seqSet := new(imap.SeqSet)
seqSet.AddRange(start, end)
messages := make(chan *imap.Message, limit)
done := make(chan error, 1)
go func() {
done <- c.ic.Fetch(seqSet, []imap.FetchItem{imap.FetchEnvelope}, messages)
}()
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out := make([]*imap.Message, 0, limit)
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for msg := range messages {
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out = append(out, msg)
}
if err := <-done; err != nil {
return nil, err
}
return out, nil
}
func (c *Client) List(ref, name string) ([]*imap.MailboxInfo, error) {
infos := make(chan *imap.MailboxInfo, 1)
done := make(chan error, 1)
go func() {
done <- c.ic.List(ref, name, infos)
}()
out := make([]*imap.MailboxInfo, 0)
for info := range infos {
out = append(out, info)
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}
if err := <-done; err != nil {
return nil, err
}
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return out, nil
}
func (c *Client) Move(seqset *imap.SeqSet, dest string) error {
return c.ic.Move(seqset, dest)
}
func (c *Client) Noop() error {
return c.ic.Noop()
}
func (c *Client) Rename(existingName, newName string) error {
return c.ic.Rename(existingName, newName)
}
func (c *Client) Search(criteria *imap.SearchCriteria) ([]uint32, error) {
return c.ic.Search(criteria)
}
func (c *Client) Status(name string) (*imap.MailboxStatus, error) {
mbox, err := c.ic.Status(name, imapStatusFlags)
return mbox, err
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}