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modes refactor, #255

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This commit is contained in:
Shivaram Lingamneni 2018-04-22 18:47:10 -04:00
parent 8f22d5ffd8
commit fad2475c3f
14 changed files with 308 additions and 286 deletions
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144
irc/modes.go
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@ -21,8 +21,8 @@ var (
}
)
// applyUserModeChanges applies the given changes, and returns the applied changes.
func (client *Client) applyUserModeChanges(force bool, changes modes.ModeChanges) modes.ModeChanges {
// ApplyUserModeChanges applies the given changes, and returns the applied changes.
func ApplyUserModeChanges(client *Client, changes modes.ModeChanges, force bool) modes.ModeChanges {
applied := make(modes.ModeChanges, 0)
for _, change := range changes {
@ -34,36 +34,28 @@ func (client *Client) applyUserModeChanges(force bool, changes modes.ModeChanges
continue
}
if client.flags[change.Mode] {
continue
if changed := client.SetMode(change.Mode, true); changed {
if change.Mode == modes.Invisible {
client.server.stats.ChangeInvisible(1)
} else if change.Mode == modes.Operator || change.Mode == modes.LocalOperator {
client.server.stats.ChangeOperators(1)
}
applied = append(applied, change)
}
if change.Mode == modes.Invisible {
client.server.stats.ChangeInvisible(1)
}
client.flags[change.Mode] = true
applied = append(applied, change)
case modes.Remove:
if !client.flags[change.Mode] {
continue
if changed := client.SetMode(change.Mode, false); changed {
if change.Mode == modes.Invisible {
client.server.stats.ChangeInvisible(-1)
} else if change.Mode == modes.Operator || change.Mode == modes.LocalOperator {
client.server.stats.ChangeOperators(-1)
}
applied = append(applied, change)
}
if change.Mode == modes.Invisible {
client.server.stats.ChangeInvisible(-1)
}
if change.Mode == modes.Operator || change.Mode == modes.LocalOperator {
client.server.stats.ChangeOperators(-1)
}
delete(client.flags, change.Mode)
applied = append(applied, change)
}
case modes.ServerNotice:
if !client.flags[modes.Operator] {
if !client.HasMode(modes.Operator) {
continue
}
var masks []sno.Mask
@ -101,7 +93,7 @@ func ParseDefaultChannelModes(config *Config) modes.Modes {
return DefaultChannelModes
}
modeChangeStrings := strings.Split(strings.TrimSpace(*config.Channels.DefaultModes), " ")
modeChanges, _ := ParseChannelModeChanges(modeChangeStrings...)
modeChanges, _ := modes.ParseChannelModeChanges(modeChangeStrings...)
defaultChannelModes := make(modes.Modes, 0)
for _, modeChange := range modeChanges {
if modeChange.Op == modes.Add {
@ -111,83 +103,6 @@ func ParseDefaultChannelModes(config *Config) modes.Modes {
return defaultChannelModes
}
// ParseChannelModeChanges returns the valid changes, and the list of unknown chars.
func ParseChannelModeChanges(params ...string) (modes.ModeChanges, map[rune]bool) {
changes := make(modes.ModeChanges, 0)
unknown := make(map[rune]bool)
op := modes.List
if 0 < len(params) {
modeArg := params[0]
skipArgs := 1
for _, mode := range modeArg {
if mode == '-' || mode == '+' {
op = modes.ModeOp(mode)
continue
}
change := modes.ModeChange{
Mode: modes.Mode(mode),
Op: op,
}
// put arg into modechange if needed
switch modes.Mode(mode) {
case modes.BanMask, modes.ExceptMask, modes.InviteMask:
if len(params) > skipArgs {
change.Arg = params[skipArgs]
skipArgs++
} else {
change.Op = modes.List
}
case modes.ChannelFounder, modes.ChannelAdmin, modes.ChannelOperator, modes.Halfop, modes.Voice:
if len(params) > skipArgs {
change.Arg = params[skipArgs]
skipArgs++
} else {
continue
}
case modes.Key, modes.UserLimit:
// don't require value when removing
if change.Op == modes.Add {
if len(params) > skipArgs {
change.Arg = params[skipArgs]
skipArgs++
} else {
continue
}
}
}
var isKnown bool
for _, supportedMode := range modes.SupportedChannelModes {
if rune(supportedMode) == mode {
isKnown = true
break
}
}
for _, supportedMode := range modes.ChannelPrivModes {
if rune(supportedMode) == mode {
isKnown = true
break
}
}
if mode == rune(modes.Voice) {
isKnown = true
}
if !isKnown {
unknown[mode] = true
continue
}
changes = append(changes, change)
}
}
return changes, unknown
}
// ApplyChannelModeChanges applies a given set of mode changes.
func (channel *Channel) ApplyChannelModeChanges(client *Client, isSamode bool, changes modes.ModeChanges, rb *ResponseBuffer) modes.ModeChanges {
// so we only output one warning for each list type when full
@ -208,15 +123,17 @@ func (channel *Channel) ApplyChannelModeChanges(client *Client, isSamode bool, c
}
switch change.Mode {
case modes.ChannelFounder, modes.ChannelAdmin, modes.ChannelOperator, modes.Halfop, modes.Voice:
// Admins can't give other people Admin or remove it from others
if change.Mode == modes.ChannelAdmin {
return false
}
// List on these modes is a no-op anyway
if change.Op == modes.List {
return true
}
cfarg, _ := CasefoldName(change.Arg)
if change.Op == modes.Remove && cfarg == client.nickCasefolded {
isSelfChange := cfarg == client.NickCasefolded()
// Admins can't give other people Admin or remove it from others
if change.Mode == modes.ChannelAdmin && !isSelfChange {
return false
}
if change.Op == modes.Remove && isSelfChange {
// "There is no restriction, however, on anyone `deopping' themselves"
// <https://tools.ietf.org/html/rfc2812#section-3.1.5>
return true
@ -299,8 +216,7 @@ func (channel *Channel) ApplyChannelModeChanges(client *Client, isSamode bool, c
continue
}
already := channel.setMode(change.Mode, change.Op == modes.Add)
if !already {
if changed := channel.flags.SetMode(change.Mode, change.Op == modes.Add); changed {
applied = append(applied, change)
}
@ -309,7 +225,13 @@ func (channel *Channel) ApplyChannelModeChanges(client *Client, isSamode bool, c
continue
}
change := channel.applyModeMemberNoMutex(client, change.Mode, change.Op, change.Arg, rb)
nick := change.Arg
if nick == "" {
rb.Add(nil, client.server.name, ERR_NEEDMOREPARAMS, "MODE", client.t("Not enough parameters"))
return nil
}
change := channel.applyModeToMember(client, change.Mode, change.Op, nick, rb)
if change != nil {
applied = append(applied, *change)
}