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package state
import (
"context"
"strings"
"github.com/ProtonMail/gluon/db"
"github.com/ProtonMail/gluon/imap"
"github.com/ProtonMail/gluon/imap/command"
"github.com/ProtonMail/gluon/internal/contexts"
"github.com/bradenaw/juniper/xslices"
)
type snapshot struct {
mboxID db.MailboxIDPair
state *State
messages *snapMsgList
}
func newSnapshot(ctx context.Context, state *State, client db.ReadOnly, mbox *db.Mailbox) (*snapshot, error) {
snapshotMessages, err := client.GetMailboxMessageForNewSnapshot(ctx, mbox.ID)
if err != nil {
return nil, err
}
snap := &snapshot{
mboxID: db.NewMailboxIDPair(mbox),
state: state,
messages: newMsgList(len(snapshotMessages)),
}
for _, snapshotMessage := range snapshotMessages {
if err := snap.messages.insert(
db.MessageIDPair{InternalID: snapshotMessage.InternalID, RemoteID: snapshotMessage.RemoteID},
snapshotMessage.UID,
snapshotMessage.GetFlagSet(),
); err != nil {
return nil, err
}
}
return snap, nil
}
func newEmptySnapshot(state *State, mbox *db.Mailbox) *snapshot {
return &snapshot{
mboxID: db.NewMailboxIDPair(mbox),
state: state,
messages: newMsgList(0),
}
}
func (snap *snapshot) len() int {
return snap.messages.len()
}
func (snap *snapshot) hasMessage(messageID imap.InternalMessageID) bool {
return snap.messages.has(messageID)
}
func (snap *snapshot) getMessageSeq(messageID imap.InternalMessageID) (imap.SeqID, error) {
msg, ok := snap.messages.get(messageID)
if !ok {
return 0, ErrNoSuchMessage
}
return msg.Seq, nil
}
func (snap *snapshot) getMessageUID(messageID imap.InternalMessageID) (imap.UID, error) {
msg, ok := snap.messages.get(messageID)
if !ok {
return 0, ErrNoSuchMessage
}
return msg.UID, nil
}
func (snap *snapshot) getMessageFlags(messageID imap.InternalMessageID) (imap.FlagSet, error) {
msg, ok := snap.messages.get(messageID)
if !ok {
return nil, ErrNoSuchMessage
}
return msg.flags, nil
}
func (snap *snapshot) setMessageFlags(messageID imap.InternalMessageID, flags imap.FlagSet) error {
msg, ok := snap.messages.get(messageID)
if !ok {
return ErrNoSuchMessage
}
if recent := msg.flags.ContainsUnchecked(imap.FlagRecentLowerCase); recent {
flags = flags.Add(imap.FlagRecent)
}
msg.toExpunge = flags.ContainsUnchecked(imap.FlagDeletedLowerCase)
msg.flags = flags
return nil
}
func (snap *snapshot) getAllMessages() []snapMsgWithSeq {
allMessages := snap.messages.all()
result := make([]snapMsgWithSeq, len(allMessages))
for i, v := range allMessages {
result[i] = snapMsgWithSeq{
Seq: imap.SeqID(i + 1),
snapMsg: v,
}
}
return result
}
func (snap *snapshot) getAllMessageIDs() []db.MessageIDPair {
return xslices.Map(snap.messages.all(), func(msg *snapMsg) db.MessageIDPair {
return msg.ID
})
}
func (snap *snapshot) getAllMessagesIDsMarkedDelete() []db.MessageIDPair {
var msgs []db.MessageIDPair
for _, v := range snap.messages.all() {
if v.toExpunge {
msgs = append(msgs, v.ID)
}
}
return msgs
}
func (snap *snapshot) getMessagesInRange(ctx context.Context, seq []command.SeqRange) ([]snapMsgWithSeq, error) {
switch {
case contexts.IsUID(ctx):
return snap.getMessagesInUIDRange(seq)
default:
return snap.getMessagesInSeqRange(seq)
}
}
type SeqInterval struct {
begin imap.SeqID
end imap.SeqID
}
func (s SeqInterval) contains(seq imap.SeqID) bool {
return seq >= s.begin && seq <= s.end
}
type UIDInterval struct {
begin imap.UID
end imap.UID
}
func (u UIDInterval) contains(uid imap.UID) bool {
return uid >= u.begin && uid <= u.end
}
func (snap *snapshot) resolveSeqInterval(seq []command.SeqRange) ([]SeqInterval, error) {
return snap.messages.resolveSeqInterval(seq)
}
func (snap *snapshot) resolveUIDInterval(seq []command.SeqRange) ([]UIDInterval, error) {
return snap.messages.resolveUIDInterval(seq)
}
func (snap *snapshot) getMessagesInSeqRange(seq []command.SeqRange) ([]snapMsgWithSeq, error) {
return snap.messages.getMessagesInSeqRange(seq)
}
func (snap *snapshot) getMessagesInUIDRange(seq []command.SeqRange) ([]snapMsgWithSeq, error) {
return snap.messages.getMessagesInUIDRange(seq)
}
func (snap *snapshot) firstMessageWithFlag(flag string) (snapMsgWithSeq, bool) {
flagLower := strings.ToLower(flag)
for i, msg := range snap.messages.msg {
if msg.flags.ContainsUnchecked(flagLower) {
return snapMsgWithSeq{Seq: imap.SeqID(i + 1), snapMsg: msg}, true
}
}
return snapMsgWithSeq{}, false
}
func (snap *snapshot) firstMessageWithoutFlag(flag string) (snapMsgWithSeq, bool) {
flagLower := strings.ToLower(flag)
for i, msg := range snap.messages.msg {
if !msg.flags.ContainsUnchecked(flagLower) {
return snapMsgWithSeq{Seq: imap.SeqID(i + 1), snapMsg: msg}, true
}
}
return snapMsgWithSeq{}, false
}
func (snap *snapshot) getMessagesWithFlag(flag string) []snapMsgWithSeq {
flagLower := strings.ToLower(flag)
return snap.messages.where(func(msg snapMsgWithSeq) bool {
return msg.flags.ContainsUnchecked(flagLower)
})
}
func (snap *snapshot) getMessagesWithFlagCount(flag string) int {
flagLower := strings.ToLower(flag)
return snap.messages.whereCount(func(msg snapMsgWithSeq) bool {
return msg.flags.ContainsUnchecked(flagLower)
})
}
func (snap *snapshot) getMessagesWithoutFlag(flag string) []snapMsgWithSeq {
flagLower := strings.ToLower(flag)
return snap.messages.where(func(msg snapMsgWithSeq) bool {
return !msg.flags.ContainsUnchecked(flagLower)
})
}
func (snap *snapshot) getMessagesWithoutFlagCount(flag string) int {
flagLower := strings.ToLower(flag)
return snap.messages.whereCount(func(msg snapMsgWithSeq) bool {
return !msg.flags.ContainsUnchecked(flagLower)
})
}
func (snap *snapshot) appendMessage(messageID db.MessageIDPair, uid imap.UID, flags imap.FlagSet) error {
return snap.messages.insert(
messageID,
uid,
flags,
)
}
func (snap *snapshot) appendMessageFromOtherState(messageID db.MessageIDPair, uid imap.UID, flags imap.FlagSet) error {
snap.messages.insertOutOfOrder(
messageID,
uid,
flags,
)
return nil
}
func (snap *snapshot) expungeMessage(messageID imap.InternalMessageID) error {
if ok := snap.messages.remove(messageID); !ok {
return ErrNoSuchMessage
}
return nil
}
func (snap *snapshot) updateMailboxRemoteID(internalID imap.InternalMailboxID, remoteID imap.MailboxID) error {
if snap.mboxID.InternalID != internalID {
return ErrNoSuchMailbox
}
snap.mboxID.RemoteID = remoteID
return nil
}
func (snap *snapshot) updateMessageRemoteID(internalID imap.InternalMessageID, remoteID imap.MessageID) error {
if ok := snap.messages.update(internalID, remoteID); !ok {
return ErrNoSuchMessage
}
return nil
}
|
