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refactoring / bug fixing in history preferences

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This commit is contained in:
Shivaram Lingamneni 2020-02-24 14:09:00 -05:00
parent 7f4c50b81d
commit b45f8436a4
5 changed files with 99 additions and 85 deletions
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73
irc/server.go
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@ -864,46 +864,52 @@ func (server *Server) setupListeners(config *Config) (err error) {
// privilege checking.
func (server *Server) GetHistorySequence(providedChannel *Channel, client *Client, target string) (channel *Channel, sequence history.Sequence, err error) {
config := server.Config()
// 4 cases: {persistent, ephemeral} x {normal, conversation}
// with ephemeral history, recipient is implicit in the choice of `hist`,
// and sender is "" if we're retrieving a channel or *, and the correspondent's name
// if we're retrieving a DM conversation ("query buffer"). with persistent history,
// recipient is always nonempty, and sender is either empty or nonempty as before.
var status HistoryStatus
var sender, recipient string
var hist *history.Buffer
if target == "*" {
persistent, ephemeral, target := client.historyStatus(config)
if persistent {
recipient = target
} else if ephemeral {
hist = &client.history
} else {
channel = providedChannel
if channel == nil {
if strings.HasPrefix(target, "#") {
channel = server.channels.Get(target)
if channel == nil {
return
}
}
}
if channel != nil {
if !channel.hasClient(client) {
err = errInsufficientPrivs
return
}
status, recipient = channel.historyStatus(config)
switch status {
case HistoryEphemeral:
hist = &channel.history
case HistoryPersistent:
// already set `recipient`
default:
return
}
} else {
channel = providedChannel
if channel == nil {
channel = server.channels.Get(target)
}
if channel != nil {
if !channel.hasClient(client) {
err = errInsufficientPrivs
return
}
persistent, ephemeral, cfTarget := channel.historyStatus(config)
if persistent {
recipient = cfTarget
} else if ephemeral {
hist = &channel.history
} else {
return
}
} else {
sender = client.NickCasefolded()
var cfTarget string
cfTarget, err = CasefoldName(target)
status, recipient = client.historyStatus(config)
if target != "*" {
sender, err = CasefoldName(target)
if err != nil {
return
}
recipient = cfTarget
if !client.AlwaysOn() {
hist = &client.history
}
}
switch status {
case HistoryEphemeral:
hist = &client.history
case HistoryPersistent:
// already set `recipient`, and `sender` if necessary
default:
return
}
}
@ -921,8 +927,9 @@ func (server *Server) GetHistorySequence(providedChannel *Channel, client *Clien
if !cutoff.IsZero() {
cutoff = cutoff.Add(-time.Duration(config.History.Restrictions.GracePeriod))
}
if hist != nil {
sequence = hist.MakeSequence(recipient, cutoff)
sequence = hist.MakeSequence(sender, cutoff)
} else if recipient != "" {
sequence = server.historyDB.MakeSequence(sender, recipient, cutoff)
}