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modes: Start overhauling modes
This commit is contained in:
Daniel Oaks
parent
b33b217fab
commit
657ed644cb
264
irc/modes.go
264
irc/modes.go
@ -1,87 +1,45 @@
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// Copyright (c) 2012-2014 Jeremy Latt
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// Copyright (c) 2014-2015 Edmund Huber
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// Copyright (c) 2016- Daniel Oaks <daniel@danieloaks.net>
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// Copyright (c) 2016-2017 Daniel Oaks <daniel@danieloaks.net>
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// released under the MIT license
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package irc
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import (
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"fmt"
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"strconv"
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"strings"
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"github.com/DanielOaks/girc-go/ircmsg"
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)
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// user mode flags
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type UserMode rune
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// ModeOp is an operation performed with modes
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type ModeOp rune
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func (mode UserMode) String() string {
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func (op ModeOp) String() string {
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return string(op)
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}
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const (
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Add ModeOp = '+'
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List ModeOp = '='
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Remove ModeOp = '-'
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)
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// Mode represents a user/channel/server mode
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type Mode rune
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func (mode Mode) String() string {
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return string(mode)
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}
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type UserModes []UserMode
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func (modes UserModes) String() string {
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strs := make([]string, len(modes))
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for index, mode := range modes {
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strs[index] = mode.String()
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}
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return strings.Join(strs, "")
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}
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// ModeChange is a single mode changing
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type ModeChange struct {
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mode UserMode
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op ModeOp
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}
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func (change *ModeChange) String() string {
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return fmt.Sprintf("%s%s", change.op, change.mode)
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}
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type ModeChanges []*ModeChange
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func (changes ModeChanges) String() string {
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if len(changes) == 0 {
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return ""
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}
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op := changes[0].op
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str := changes[0].op.String()
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for _, change := range changes {
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if change.op != op {
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op = change.op
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str += change.op.String()
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}
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str += change.mode.String()
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}
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return str
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}
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// channel mode flags
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type ChannelMode rune
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func (mode ChannelMode) String() string {
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return string(mode)
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}
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type ChannelModes []ChannelMode
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func (modes ChannelModes) String() string {
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strs := make([]string, len(modes))
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for index, mode := range modes {
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strs[index] = mode.String()
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}
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return strings.Join(strs, "")
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}
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type ChannelModeChange struct {
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mode ChannelMode
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mode Mode
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op ModeOp
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arg string
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}
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func (change *ChannelModeChange) String() (str string) {
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func (change *ModeChange) String() (str string) {
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if (change.op == Add) || (change.op == Remove) {
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str = change.op.String()
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}
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@ -92,9 +50,10 @@ func (change *ChannelModeChange) String() (str string) {
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return
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}
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type ChannelModeChanges []*ChannelModeChange
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// ModeChanges are a collection of 'ModeChange's
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type ModeChanges []ModeChange
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func (changes ChannelModeChanges) String() string {
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func (changes ModeChanges) String() string {
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if len(changes) == 0 {
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return ""
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}
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@ -119,82 +78,78 @@ func (changes ChannelModeChanges) String() string {
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return str
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}
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type ChannelModeCommand struct {
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channel string
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changes ChannelModeChanges
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}
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type ModeOp rune
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func (op ModeOp) String() string {
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return string(op)
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// Modes is just a raw list of modes
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type Modes []Mode
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func (modes Modes) String() string {
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strs := make([]string, len(modes))
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for index, mode := range modes {
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strs[index] = mode.String()
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}
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return strings.Join(strs, "")
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}
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// User Modes
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const (
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Add ModeOp = '+'
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List ModeOp = '='
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Remove ModeOp = '-'
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)
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const (
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Away UserMode = 'a'
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Invisible UserMode = 'i'
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LocalOperator UserMode = 'O'
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Operator UserMode = 'o'
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Restricted UserMode = 'r'
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ServerNotice UserMode = 's' // deprecated
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TLS UserMode = 'Z'
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UserRoleplaying UserMode = 'E'
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WallOps UserMode = 'w'
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Away Mode = 'a'
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Invisible Mode = 'i'
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LocalOperator Mode = 'O'
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Operator Mode = 'o'
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Restricted Mode = 'r'
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ServerNotice Mode = 's' // deprecated
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TLS Mode = 'Z'
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UserRoleplaying Mode = 'E'
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WallOps Mode = 'w'
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)
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var (
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SupportedUserModes = UserModes{
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SupportedUserModes = Modes{
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Away, Invisible, Operator, UserRoleplaying,
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}
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// supportedUserModesString acts as a cache for when we introduce users
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supportedUserModesString = SupportedUserModes.String()
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)
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// Channel Modes
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const (
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BanMask ChannelMode = 'b' // arg
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ChanRoleplaying ChannelMode = 'E' // flag
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ExceptMask ChannelMode = 'e' // arg
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InviteMask ChannelMode = 'I' // arg
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InviteOnly ChannelMode = 'i' // flag
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Key ChannelMode = 'k' // flag arg
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Moderated ChannelMode = 'm' // flag
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NoOutside ChannelMode = 'n' // flag
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OpOnlyTopic ChannelMode = 't' // flag
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Secret ChannelMode = 's' // flag
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UserLimit ChannelMode = 'l' // flag arg
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BanMask Mode = 'b' // arg
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ChanRoleplaying Mode = 'E' // flag
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ExceptMask Mode = 'e' // arg
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InviteMask Mode = 'I' // arg
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InviteOnly Mode = 'i' // flag
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Key Mode = 'k' // flag arg
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Moderated Mode = 'm' // flag
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NoOutside Mode = 'n' // flag
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OpOnlyTopic Mode = 't' // flag
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Secret Mode = 's' // flag
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UserLimit Mode = 'l' // flag arg
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)
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var (
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ChannelFounder ChannelMode = 'q' // arg
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ChannelAdmin ChannelMode = 'a' // arg
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ChannelOperator ChannelMode = 'o' // arg
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Halfop ChannelMode = 'h' // arg
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Voice ChannelMode = 'v' // arg
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ChannelFounder Mode = 'q' // arg
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ChannelAdmin Mode = 'a' // arg
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ChannelOperator Mode = 'o' // arg
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Halfop Mode = 'h' // arg
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Voice Mode = 'v' // arg
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SupportedChannelModes = ChannelModes{
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SupportedChannelModes = Modes{
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BanMask, ExceptMask, InviteMask, InviteOnly, Key, NoOutside,
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OpOnlyTopic, Secret, UserLimit, ChanRoleplaying,
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}
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// supportedChannelModesString acts as a cache for when we introduce users
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supportedChannelModesString = SupportedChannelModes.String()
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DefaultChannelModes = ChannelModes{
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DefaultChannelModes = Modes{
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NoOutside, OpOnlyTopic,
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}
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// ChannelPrivModes holds the list of modes that are privileged, ie founder/op/halfop, in order.
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// voice is not in this list because it cannot perform channel operator actions.
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ChannelPrivModes = ChannelModes{
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ChannelPrivModes = Modes{
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ChannelFounder, ChannelAdmin, ChannelOperator, Halfop,
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}
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ChannelModePrefixes = map[ChannelMode]string{
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ChannelModePrefixes = map[Mode]string{
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ChannelFounder: "~",
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ChannelAdmin: "&",
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ChannelOperator: "@",
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@ -203,6 +158,10 @@ var (
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}
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)
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//
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// channel membership prefixes
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//
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// SplitChannelMembershipPrefixes takes a target and returns the prefixes on it, then the name.
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func SplitChannelMembershipPrefixes(target string) (prefixes string, name string) {
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name = target
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@ -245,9 +204,48 @@ func modeHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
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if errChan == nil {
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return cmodeHandler(server, client, msg)
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} else {
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return umodeHandler(server, client, msg)
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}
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return umodeHandler(server, client, msg)
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}
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// applyModeChanges applies the given changes, and returns the applied changes.
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func (client *Client) applyModeChanges(ModeChanges) ModeChanges {
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applied := make(ModeChanges, 0)
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for _, change := range changes {
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switch change.mode {
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case Invisible, ServerNotice, WallOps, UserRoleplaying:
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switch change.op {
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case Add:
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if client.flags[change.mode] {
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continue
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}
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client.flags[change.mode] = true
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applied = append(applied, change)
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case Remove:
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if !client.flags[change.mode] {
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continue
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}
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delete(client.flags, change.mode)
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applied = append(applied, change)
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}
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case Operator, LocalOperator:
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if change.op == Remove {
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if !client.flags[change.mode] {
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continue
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}
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delete(client.flags, change.mode)
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applied = append(applied, change)
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}
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}
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// can't do anything to TLS mode
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}
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// return the changes we could actually apply
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return applied
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}
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// MODE <target> [<modestring> [<mode arguments>...]]
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@ -292,42 +290,12 @@ func umodeHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
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continue
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}
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changes = append(changes, &ModeChange{
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mode: UserMode(mode),
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mode: Mode(mode),
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op: op,
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})
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}
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for _, change := range changes {
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switch change.mode {
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case Invisible, ServerNotice, WallOps, UserRoleplaying:
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switch change.op {
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case Add:
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if target.flags[change.mode] {
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continue
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}
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target.flags[change.mode] = true
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applied = append(applied, change)
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case Remove:
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if !target.flags[change.mode] {
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continue
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}
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delete(target.flags, change.mode)
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applied = append(applied, change)
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}
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case Operator, LocalOperator:
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if change.op == Remove {
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if !target.flags[change.mode] {
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continue
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}
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delete(target.flags, change.mode)
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applied = append(applied, change)
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}
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}
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// can't do anything to TLS mode
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}
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applied := target.applyModeChanges(changes)
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}
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if len(applied) > 0 {
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@ -338,6 +306,16 @@ func umodeHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
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return false
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}
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//////
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//////
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//////
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//////
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//////
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//////
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//////
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//////
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//////
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// MODE <target> [<modestring> [<mode arguments>...]]
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func cmodeHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
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channelName, err := CasefoldChannel(msg.Params[0])
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