// HasOperCommand returns whether the user has access to the given oper command.
// This checks for the presence of the command in their opcommand list, and
// if a flag is given, also checks for the presence of that, including the
// "on" keyword for default privileges.
//
// Unlike HasOpFlag, this SHOULD be used directly to determine if a user can
// run the given command, as we extend the ability to adjust who has access to
// commands to the server administration via configuration instead of modules
// in the case of oper commands.
func HasOperCommand(u *core.User, flag, command string) bool {
var words []string
// Check commands.
words = strings.Fields(u.Data("opcommands"))
for _, word := range words {
if word == command {
return true
}
}
// Check flags.
words = strings.Fields(u.Data("op"))
for _, word := range words {
if word == flag {
return true
}
if word == "on" {
for _, defword := range defServerOp {
if defword == flag {
return true
}
}
}
}
return false
}
func cmdOperflags(source interface{}, params [][]byte) {
c := source.(*Client)
var target *core.User
if target = core.GetUserByNick(string(params[0])); target == nil {
c.SendLineTo(nil, "401", "%s %s :No such user.", c.u.Nick(),
params[0])
return
}
var flags string
if flags = target.Data("op"); flags == "" {
c.SendLineTo(nil, "304", ":OPERFLAGS: %s has no server oper flags.", target.Nick())
return
}
if flags == "on" {
flags = perm.DefaultServerOp()
}
c.SendLineTo(nil, "304", ":OPERFLAGS: %s has server oper flags: %s", target.Nick(), flags)
var commands string
if commands = target.Data("opcommands"); commands == "" {
return
}
c.SendLineTo(nil, "304", ":OPERFLAGS: %s also has the following specific commands: %s", target.Nick(), commands)
}
func cmdUserhost(source interface{}, params [][]byte) {
c := source.(*Client)
nicks := strings.Fields(string(params[0]))
var replyline string
for _, nick := range nicks {
var user *core.User
if user = core.GetUserByNick(nick); user == nil {
continue
}
if replyline != "" {
replyline += " "
}
replyline += nick
if user.Data("op") != "" {
replyline += "*"
}
replyline += "="
if user.Data("away") != "" {
replyline += "-"
} else {
replyline += "+"
}
replyline += user.GetHostname()
}
c.SendLineTo(nil, "302", ":%s", replyline)
}
func cmdOpflags(source interface{}, params [][]byte) {
c := source.(*Client)
channame := string(params[0])
if channame[0] == '#' {
channame = channame[1:]
}
var ch *core.Channel
if ch = core.FindChannel("", channame); ch == nil {
c.SendLineTo(nil, "403", "#%s :No such channel.", channame)
return
}
// If the user isn't on the channel, don't let them check unless they
// can view private channel data.
if m := ch.GetMember(c.u); m == nil {
if ok, err := perm.CheckChanViewData(me, c.u, ch, "members"); !ok {
c.SendLineTo(nil, "482", "#%s :%s", ch.Name(), err)
return
}
}
var target *core.User
if target = core.GetUserByNick(string(params[1])); target == nil {
c.SendLineTo(nil, "401", "%s :No such user.", params[1])
return
}
var m *core.Membership
if m = ch.GetMember(target); m == nil {
c.SendLineTo(nil, "304", ":OPFLAGS #%s: %s is not in the channel.", ch.Name(), target.Nick())
return
}
if ok, err := perm.CheckMemberViewData(me, c.u, m, "op"); !ok {
c.SendLineTo(nil, "482", "#%s :%s: %s", ch.Name(), target.Nick(), err)
return
}
var flags string
if flags = m.Data("op"); flags == "" {
c.SendLineTo(nil, "304", ":OPFLAGS #%s: %s has no channel op flags.", ch.Name(), target.Nick())
return
}
if flags == "on" {
flags = perm.DefaultChanOp()
}
c.SendLineTo(nil, "304", ":OPFLAGS #%s: %s has channel op flags: %s", ch.Name(), target.Nick(), flags)
}
// ParseModeLine parses a line of mode changes into core.DataChange structs.
// Redundant changes are compressed down into one.
// An error is returned if unknown modes are encountered, or modes are dropped
// due to missing parameters. The remainder of the modes are still parsed.
// e is the user or channel being changed.
func (p *ModeParser) ParseModeLine(source *core.User, e core.Extensible, modeline []byte, params []string) ([]core.DataChange, os.Error) {
var adding bool = true
var unknown string
var missing string
var param int
modes := string(modeline)
changes := make(map[string]core.DataChange)
for _, char := range modes {
if char == '+' {
adding = true
continue
} else if char == '-' {
adding = false
continue
}
if v, ok := p.simple[char]; ok {
if v, ok := p.extended[char]; ok {
newchanges := v(adding, e, "")
for _, it := range newchanges {
changes[it.Name] = it
}
continue
}
var change core.DataChange
change.Name = v
if adding {
change.Data = "on"
}
changes[change.Name] = change
continue
}
if v, ok := p.parametered[char]; ok {
var change core.DataChange
if adding {
if param >= len(params) {
missing += string(char)
continue
}
if v, ok := p.extended[char]; ok {
newch := v(adding, e, params[param])
param++
for _, it := range newch {
changes[it.Name] = it
}
continue
}
change.Name = v
change.Data = params[param]
param++
} else {
if v, ok := p.extended[char]; ok {
newchanges := v(adding, e, "")
for _, it := range newchanges {
changes[it.Name] = it
}
continue
}
change.Name = v
}
changes[change.Name] = change
continue
}
if v, ok := p.list[char]; ok {
if param >= len(params) {
missing += string(char)
continue
}
var change core.DataChange
cparam := params[param]
param++
if v, ok := p.extended[char]; ok {
newchanges := v(adding, e, cparam)
for _, it := range newchanges {
if it.Data != "" {
it.Data += fmt.Sprintf(" setby-%s setat-%d", source.GetSetBy(), time.Seconds())
}
changes[it.Name] = it
}
continue
}
if adding {
change.Name = v + " " + cparam
change.Data = fmt.Sprintf("on setby-%s setat-%d", source.GetSetBy(), time.Seconds())
} else {
change.Name = v + " " + cparam
}
changes[change.Name] = change
continue
}
if v, ok := p.membership[char]; ok {
var ch *core.Channel
var ok bool
if ch, ok = e.(*core.Channel); !ok {
continue
}
if param >= len(params) {
missing += string(char)
continue
}
par := params[param]
param++
if v, ok := p.extended[char]; ok {
newchanges := v(adding, e, par)
for _, it := range newchanges {
if it.Member != nil {
changes["m"+it.Member.User().ID()+" "+it.Name] = it
} else {
changes[it.Name] = it
}
}
continue
}
var u *core.User
var m *core.Membership
if u = core.GetUser(par); u == nil {
if u = core.GetUserByNick(par); u == nil {
continue
}
}
if m = ch.GetMember(u); m == nil {
continue
}
var change core.DataChange
change.Name = v
change.Member = m
if adding {
change.Data = "on"
}
changes["m"+change.Member.User().ID()+" "+change.Name] = change
continue
}
unknown += string(char)
}
// Turn the modes into a slice.
c := make([]core.DataChange, 0, len(changes))
for _, change := range changes {
c = append(c, change)
}
// Get the error, if we had one.
var errstring string
if unknown != "" {
errstring += "Unknown mode letters: " + unknown
if missing != "" {
errstring += " "
}
}
if missing != "" {
errstring += "Missing parameters for: " + missing
}
var err os.Error
if errstring != "" {
err = os.NewError(errstring)
}
return c, err
}
// Introduce a user to a given local server.
func send_uid(l *local, u *core.User) {
irc.SendFrom(l, from(nil), "UID %s 1 %d +i %s %s %s %s :%s", u.Nick(),
u.NickTS(), u.GetIdent(), u.GetHostname(), u.GetIP(), u.ID(),
u.Data("realname"))
}