Beispiel #1
0
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)
}
Beispiel #2
0
// Function handling processing of extended op syntax into metadata.
// It returns the data change object.
func processOp(adding bool, ch *core.Channel, param string) []core.DataChange {
	var change core.DataChange
	change.Name = "op"
	change.Data = perm.DefaultChanOp()

	// Find a colon, indicating extended op syntax.
	var colon, mask int
	colon = strings.IndexRune(param, ':')
	if colon > -1 && len(param) > colon+1 {
		mask = colon + 1
	} else {
		colon = -1
	}

	// Set the member this opping refers to.
	if target := core.GetUserByNick(param[mask:]); target != nil {
		if m := ch.GetMember(target); m != nil {
			change.Member = m
		} else {
			return nil
		}
	} else {
		return nil
	}

	// If a colon exists, treat everything before it as opflags.
	if colon > -1 {
		change.Data = ""
		for _, char := range param[:colon] {
			if v := Flags.Str(char); v != "" {
				if change.Data != "" {
					change.Data += " "
				}
				change.Data += v
			}
		}
	}

	// Get the existing op flags, expanding default ops.
	existingData := change.Member.Data("op")
	words := strings.Fields(existingData)
	var existing string
	for _, word := range words {
		if word == "on" {
			word = perm.DefaultChanOp()
		}

		if existing != "" {
			existing += " "
		}
		existing += word
	}

	if adding {
		// If we're adding the ban, add the new restrictions to the
		// previous restrictions.
		if existing != "" {
			words := strings.Fields(existing)
			remwords := strings.Fields(change.Data)
			for _, flag := range words {
				var found bool
				for _, w := range remwords {
					if w == flag {
						found = true
						break
					}
				}
				if !found {
					if change.Data != "" {
						change.Data += " "
					}
					change.Data += flag
				}
			}
		}
	} else {
		// If we're removing the ban, remove the removed restrictions.
		// Leave restrictions not removed alone.
		// This is "fun". This is also O(n^2).
		var left string
		if existing != "" {
			words := strings.Fields(existing)
			remwords := strings.Fields(change.Data)
			for _, flag := range words {
				var found bool
				for _, w := range remwords {
					if w == flag {
						found = true
						break
					}
				}
				if !found && Flags.Char(flag) != 0 {
					if left != "" {
						left += " "
					}
					left += flag
				}
			}
		}
		change.Data = left
	}

	// Test for whether we have a default restriction.
	var outsideDefault bool
	var missingDefault bool
	defwords := strings.Fields(perm.DefaultChanOp())
	words = strings.Fields(change.Data)
	for _, word := range words {
		var found bool
		for _, defword := range defwords {
			if defword == word {
				found = true
				break
			}
		}
		if !found {
			outsideDefault = true
			break
		}
	}
	if !outsideDefault {
		for _, defword := range defwords {
			var found bool
			for _, word := range words {
				if defword == word {
					found = true
					break
				}
			}
			if !found {
				missingDefault = true
				break
			}
		}
	}

	// If the restriction is the same as the default restriction, quietly
	// change it to "on".
	if !outsideDefault && !missingDefault {
		change.Data = "on"
	}

	return []core.DataChange{change}
}