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Merge pull request #811 from slingamn/history_nits.4

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tweaks to persistent history
This commit is contained in:
Shivaram Lingamneni 2020-02-24 21:34:22 -08:00 committed by GitHub
commit ec1a718275
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 106 additions and 87 deletions
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34
irc/channel.go
View File

@ -113,8 +113,8 @@ func (channel *Channel) IsLoaded() bool {
}
func (channel *Channel) resizeHistory(config *Config) {
_, ephemeral, _ := channel.historyStatus(config)
if ephemeral {
status, _ := channel.historyStatus(config)
if status == HistoryEphemeral {
channel.history.Resize(config.History.ChannelLength, config.History.AutoresizeWindow)
} else {
channel.history.Resize(0, 0)
@ -588,9 +588,9 @@ func (channel *Channel) IsEmpty() bool {
// figure out where history is being stored: persistent, ephemeral, or neither
// target is only needed if we're doing persistent history
func (channel *Channel) historyStatus(config *Config) (persistent, ephemeral bool, target string) {
if !config.History.Persistent.Enabled {
return false, config.History.Enabled, ""
func (channel *Channel) historyStatus(config *Config) (status HistoryStatus, target string) {
if !config.History.Enabled {
return HistoryDisabled, ""
}
channel.stateMutex.RLock()
@ -599,18 +599,17 @@ func (channel *Channel) historyStatus(config *Config) (persistent, ephemeral boo
registered := channel.registeredFounder != ""
channel.stateMutex.RUnlock()
historyStatus = historyEnabled(config.History.Persistent.RegisteredChannels, historyStatus)
// ephemeral history: either the channel owner explicitly set the ephemeral preference,
// or persistent history is disabled for unregistered channels
if registered {
ephemeral = (historyStatus == HistoryEphemeral)
persistent = (historyStatus == HistoryPersistent)
return historyEnabled(config.History.Persistent.RegisteredChannels, historyStatus), target
} else {
ephemeral = config.History.Enabled && !config.History.Persistent.UnregisteredChannels
persistent = config.History.Persistent.UnregisteredChannels
if config.History.Persistent.UnregisteredChannels {
return HistoryPersistent, target
} else {
return HistoryEphemeral, target
}
}
return
}
func (channel *Channel) AddHistoryItem(item history.Item) (err error) {
@ -618,14 +617,13 @@ func (channel *Channel) AddHistoryItem(item history.Item) (err error) {
return
}
persistent, ephemeral, target := channel.historyStatus(channel.server.Config())
if ephemeral {
status, target := channel.historyStatus(channel.server.Config())
if status == HistoryPersistent {
err = channel.server.historyDB.AddChannelItem(target, item)
} else if status == HistoryEphemeral {
channel.history.Add(item)
}
if persistent {
return channel.server.historyDB.AddChannelItem(target, item)
}
return nil
return
}
// Join joins the given client to this channel (if they can be joined).

32
irc/client.go
View File

@ -354,8 +354,8 @@ func (server *Server) AddAlwaysOnClient(account ClientAccount, chnames []string,
}
func (client *Client) resizeHistory(config *Config) {
_, ephemeral, _ := client.historyStatus(config)
if ephemeral {
status, _ := client.historyStatus(config)
if status == HistoryEphemeral {
client.history.Resize(config.History.ClientLength, config.History.AutoresizeWindow)
} else {
client.history.Resize(0, 0)
@ -749,16 +749,16 @@ func (session *Session) playResume() {
for _, member := range channel.Members() {
friends.Add(member)
}
_, ephemeral, _ := channel.historyStatus(config)
if ephemeral {
status, _ := channel.historyStatus(config)
if status == HistoryEphemeral {
lastDiscarded := channel.history.LastDiscarded()
if oldestLostMessage.Before(lastDiscarded) {
oldestLostMessage = lastDiscarded
}
}
}
_, cEphemeral, _ := client.historyStatus(config)
if cEphemeral {
cHistoryStatus, _ := client.historyStatus(config)
if cHistoryStatus == HistoryEphemeral {
lastDiscarded := client.history.LastDiscarded()
if oldestLostMessage.Before(lastDiscarded) {
oldestLostMessage = lastDiscarded
@ -1551,29 +1551,21 @@ func (client *Client) attemptAutoOper(session *Session) {
}
}
func (client *Client) historyStatus(config *Config) (persistent, ephemeral bool, target string) {
func (client *Client) historyStatus(config *Config) (status HistoryStatus, target string) {
if !config.History.Enabled {
return
} else if !config.History.Persistent.Enabled {
ephemeral = true
return
return HistoryDisabled, ""
}
client.stateMutex.RLock()
alwaysOn := client.alwaysOn
loggedIn := client.account != ""
historyStatus := client.accountSettings.DMHistory
target = client.nickCasefolded
client.stateMutex.RUnlock()
if !alwaysOn {
ephemeral = true
return
if !loggedIn {
return HistoryEphemeral, ""
}
historyStatus = historyEnabled(config.History.Persistent.DirectMessages, historyStatus)
ephemeral = (historyStatus == HistoryEphemeral)
persistent = (historyStatus == HistoryPersistent)
return
return historyEnabled(config.History.Persistent.DirectMessages, historyStatus), target
}
// these are bit flags indicating what part of the client status is "dirty"

35
irc/config.go
View File

@ -185,25 +185,40 @@ func historyStatusToString(status HistoryStatus) string {
}
}
// XXX you must have already checked History.Enabled before calling this
func historyEnabled(serverSetting PersistentStatus, localSetting HistoryStatus) (result HistoryStatus) {
if serverSetting == PersistentDisabled {
return HistoryDisabled
} else if serverSetting == PersistentMandatory {
switch serverSetting {
case PersistentMandatory:
return HistoryPersistent
} else if serverSetting == PersistentOptOut {
case PersistentOptOut:
if localSetting == HistoryDefault {
return HistoryPersistent
} else {
return localSetting
}
} else if serverSetting == PersistentOptIn {
if localSetting >= HistoryEphemeral {
return localSetting
} else {
case PersistentOptIn:
switch localSetting {
case HistoryPersistent:
return HistoryPersistent
case HistoryEphemeral, HistoryDefault:
return HistoryEphemeral
default:
return HistoryDisabled
}
} else {
return HistoryDisabled
case PersistentDisabled:
if localSetting == HistoryDisabled {
return HistoryDisabled
} else {
return HistoryEphemeral
}
default:
// PersistentUnspecified: shouldn't happen because the deserializer converts it
// to PersistentDisabled
if localSetting == HistoryDefault {
return HistoryEphemeral
} else {
return localSetting
}
}
}

19
irc/handlers.go
View File

@ -551,8 +551,15 @@ func chathistoryHandler(server *Server, client *Client, msg ircmsg.IrcMessage, r
if maxChathistoryLimit == 0 {
return
}
preposition := strings.ToLower(msg.Params[0])
target = msg.Params[1]
parseQueryParam := func(param string) (msgid string, timestamp time.Time, err error) {
if param == "*" && (preposition == "before" || preposition == "between") {
// XXX compatibility with kiwi, which as of February 2020 is
// using BEFORE * as a synonym for LATEST *
return
}
err = utils.ErrInvalidParams
pieces := strings.SplitN(param, "=", 2)
if len(pieces) < 2 {
@ -580,8 +587,6 @@ func chathistoryHandler(server *Server, client *Client, msg ircmsg.IrcMessage, r
return
}
preposition := strings.ToLower(msg.Params[0])
target = msg.Params[1]
channel, sequence, err = server.GetHistorySequence(nil, client, target)
if err != nil || sequence == nil {
return
@ -1995,17 +2000,19 @@ func dispatchMessageToTarget(client *Client, tags map[string]string, histType hi
}
targetedItem := item
targetedItem.Params[0] = tnick
cPersistent, cEphemeral, _ := client.historyStatus(config)
tPersistent, tEphemeral, _ := user.historyStatus(config)
cStatus, _ := client.historyStatus(config)
tStatus, _ := user.historyStatus(config)
// add to ephemeral history
if cEphemeral {
if cStatus == HistoryEphemeral {
targetedItem.CfCorrespondent = tDetails.nickCasefolded
client.history.Add(targetedItem)
}
if tEphemeral && client != user {
if tStatus == HistoryEphemeral && client != user {
item.CfCorrespondent = details.nickCasefolded
user.history.Add(item)
}
cPersistent := cStatus == HistoryPersistent
tPersistent := tStatus == HistoryPersistent
if cPersistent || tPersistent {
item.CfCorrespondent = ""
server.historyDB.AddDirectMessage(details.nickCasefolded, user.NickCasefolded(), cPersistent, tPersistent, targetedItem)

73
irc/server.go
View File

@ -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)
}