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initial implementation of bouncer functionality

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This commit is contained in:
Shivaram Lingamneni 2019-04-12 00:08:46 -04:00
parent a8f04ecc4d
commit c2faeed4b5
19 changed files with 733 additions and 441 deletions
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40
irc/client_lookup_set.go
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@ -11,7 +11,9 @@ import (
"strings"
"github.com/goshuirc/irc-go/ircmatch"
"github.com/oragono/oragono/irc/caps"
"github.com/oragono/oragono/irc/modes"
"sync"
)
@ -131,7 +133,7 @@ func (clients *ClientManager) Resume(newClient, oldClient *Client) (err error) {
}
// SetNick sets a client's nickname, validating it against nicknames in use
func (clients *ClientManager) SetNick(client *Client, newNick string) error {
func (clients *ClientManager) SetNick(client *Client, session *Session, newNick string) error {
newcfnick, err := CasefoldName(newNick)
if err != nil {
return err
@ -142,21 +144,31 @@ func (clients *ClientManager) SetNick(client *Client, newNick string) error {
}
reservedAccount, method := client.server.accounts.EnforcementStatus(newcfnick, newSkeleton)
account := client.Account()
bouncerAllowed := client.server.accounts.BouncerAllowed(account, session)
clients.Lock()
defer clients.Unlock()
currentNewEntry := clients.byNick[newcfnick]
currentClient := clients.byNick[newcfnick]
// the client may just be changing case
if currentNewEntry != nil && currentNewEntry != client {
return errNicknameInUse
if currentClient != nil && currentClient != client {
// these conditions forbid reattaching to an existing session:
if client.Registered() || !bouncerAllowed || account == "" || account != currentClient.Account() || client.isTor != currentClient.isTor || client.HasMode(modes.TLS) != currentClient.HasMode(modes.TLS) {
return errNicknameInUse
}
if !currentClient.AddSession(session) {
return errNicknameInUse
}
// successful reattach:
return nil
}
// analogous checks for skeletons
skeletonHolder := clients.bySkeleton[newSkeleton]
if skeletonHolder != nil && skeletonHolder != client {
return errNicknameInUse
}
if method == NickReservationStrict && reservedAccount != "" && reservedAccount != client.Account() {
if method == NickReservationStrict && reservedAccount != "" && reservedAccount != account {
return errNicknameReserved
}
clients.removeInternal(client)
@ -179,24 +191,18 @@ func (clients *ClientManager) AllClients() (result []*Client) {
}
// AllWithCaps returns all clients with the given capabilities.
func (clients *ClientManager) AllWithCaps(capabs ...caps.Capability) (set ClientSet) {
set = make(ClientSet)
func (clients *ClientManager) AllWithCaps(capabs ...caps.Capability) (sessions []*Session) {
clients.RLock()
defer clients.RUnlock()
var client *Client
for _, client = range clients.byNick {
// make sure they have all the required caps
for _, capab := range capabs {
if !client.capabilities.Has(capab) {
continue
for _, client := range clients.byNick {
for _, session := range client.Sessions() {
if session.capabilities.HasAll(capabs...) {
sessions = append(sessions, session)
}
}
set.Add(client)
}
return set
return
}
// FindAll returns all clients that match the given userhost mask.