package imap
import (
"bufio"
"github.com/emersion/go-imap"
"github.com/emersion/go-message"
"github.com/emersion/go-message/mail"
"github.com/emersion/go-message/textproto"
"git.sr.ht/~sircmpwn/aerc/worker/types"
)
func (imapw *IMAPWorker) handleFetchMessageHeaders(
msg *types.FetchMessageHeaders) {
imapw.worker.Logger.Printf("Fetching message headers")
section := &imap.BodySectionName{
BodyPartName: imap.BodyPartName{
Specifier: imap.HeaderSpecifier,
},
Peek: true,
}
items := []imap.FetchItem{
imap.FetchBodyStructure,
imap.FetchEnvelope,
imap.FetchInternalDate,
imap.FetchFlags,
imap.FetchUid,
section.FetchItem(),
}
imapw.handleFetchMessages(msg, &msg.Uids, items, section)
}
func (imapw *IMAPWorker) handleFetchMessageBodyPart(
msg *types.FetchMessageBodyPart) {
imapw.worker.Logger.Printf("Fetching message part")
section := &imap.BodySectionName{}
section.Path = msg.Part
items := []imap.FetchItem{
imap.FetchFlags,
imap.FetchUid,
section.FetchItem(),
}
uids := imap.SeqSet{}
uids.AddNum(msg.Uid)
imapw.handleFetchMessages(msg, &uids, items, section)
}
func (imapw *IMAPWorker) handleFetchFullMessages(
msg *types.FetchFullMessages) {
imapw.worker.Logger.Printf("Fetching full messages")
section := &imap.BodySectionName{}
items := []imap.FetchItem{
imap.FetchFlags,
imap.FetchUid,
section.FetchItem(),
}
imapw.handleFetchMessages(msg, &msg.Uids, items, section)
}
func (imapw *IMAPWorker) handleFetchMessages(
msg types.WorkerMessage, uids *imap.SeqSet, items []imap.FetchItem,
section *imap.BodySectionName) {
messages := make(chan *imap.Message)
done := make(chan interface{})
go func() {
for _msg := range messages {
imapw.seqMap[_msg.SeqNum-1] = _msg.Uid
switch msg.(type) {
case *types.FetchMessageHeaders:
reader := _msg.GetBody(section)
textprotoHeader, err := textproto.ReadHeader(bufio.NewReader(reader))
var header *mail.Header
if err == nil {
header = &mail.Header{message.Header{textprotoHeader}}
}
imapw.worker.PostMessage(&types.MessageInfo{
Message: types.RespondTo(msg),
BodyStructure: _msg.BodyStructure,
Envelope: _msg.Envelope,
Flags: _msg.Flags,
InternalDate: _msg.InternalDate,
RFC822Headers: header,
Uid: _msg.Uid,
}, nil)
case *types.FetchFullMessages:
reader := _msg.GetBody(section)
imapw.worker.PostMessage(&types.FullMessage{
Message: types.RespondTo(msg),
Reader: reader,
Uid: _msg.Uid,
}, nil)
// Update flags (to mark message as read)
imapw.worker.PostMessage(&types.MessageInfo{
Message: types.RespondTo(msg),
Flags: _msg.Flags,
Uid: _msg.Uid,
}, nil)
case *types.FetchMessageBodyPart:
reader := _msg.GetBody(section)
imapw.worker.PostMessage(&types.MessageBodyPart{
Message: types.RespondTo(msg),
Reader: reader,
Uid: _msg.Uid,
}, nil)
// Update flags (to mark message as read)
imapw.worker.PostMessage(&types.MessageInfo{
Message: types.RespondTo(msg),
Flags: _msg.Flags,
Uid: _msg.Uid,
}, nil)
}
}
done <- nil
}()
if err := imapw.client.UidFetch(uids, items, messages); err != nil {
imapw.worker.PostMessage(&types.Error{
Message: types.RespondTo(msg),
Error: err,
}, nil)
} else {
<-done
imapw.worker.PostMessage(
&types.Done{types.RespondTo(msg)}, nil)
}
}