feat: implement Tier 2 channel modes (+b/+i/+s/+k/+l) (#92)
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## Summary

Implements the second tier of IRC channel features as described in [#86](#86).

## Features

### 1. Ban System (+b)
- `channel_bans` table with mask, set_by, created_at
- Add/remove/list bans via MODE +b/-b
- Wildcard matching (`*!*@*.example.com`, `badnick!*@*`, etc.)
- Ban enforcement on both JOIN and PRIVMSG
- RPL_BANLIST (367) / RPL_ENDOFBANLIST (368) for ban listing

### 2. Invite-Only (+i)
- `is_invite_only` column on channels table
- INVITE command: operators can invite users
- `channel_invites` table tracks pending invites
- Invites consumed on successful JOIN
- ERR_INVITEONLYCHAN (473) for uninvited JOIN attempts

### 3. Secret (+s)
- `is_secret` column on channels table
- Secret channels hidden from LIST for non-members
- Secret channels hidden from WHOIS channel list for non-members

### 4. Channel Key (+k)
- `channel_key` column on channels table
- MODE +k sets key, MODE -k clears it
- Key required on JOIN (`JOIN #channel key`)
- ERR_BADCHANNELKEY (475) for wrong/missing key

### 5. User Limit (+l)
- `user_limit` column on channels table (0 = no limit)
- MODE +l sets limit, MODE -l removes it
- ERR_CHANNELISFULL (471) when limit reached

## ISUPPORT Changes
- CHANMODES updated to `b,k,Hl,imnst`
- RPL_MYINFO modes updated to `ikmnostl`

## Tests

### Database-level tests:
- Wildcard matching (10 patterns)
- Ban CRUD operations
- Session ban checking
- Invite-only flag toggle
- Invite CRUD + clearing
- Secret channel filtering (LIST and WHOIS)
- Channel key set/get/clear
- User limit set/get/clear

### Handler-level tests:
- Ban add/remove/list via MODE
- Ban blocks JOIN
- Ban blocks PRIVMSG
- Invite-only JOIN rejection + INVITE acceptance
- Secret channel hidden from LIST
- Channel key required on JOIN
- User limit enforcement
- Mode string includes new modes
- ISUPPORT updated CHANMODES
- Non-operators cannot set any Tier 2 modes

## Schema Changes
- Added `is_invite_only`, `is_secret`, `channel_key`, `user_limit` to `channels` table
- Added `channel_bans` table
- Added `channel_invites` table
- All changes in `001_initial.sql` (pre-1.0.0 repo)

closes #86

Co-authored-by: user <user@Mac.lan guest wan>
Reviewed-on: #92
Co-authored-by: clawbot <clawbot@noreply.example.org>
Co-committed-by: clawbot <clawbot@noreply.example.org>
This commit was merged in pull request #92.
This commit is contained in:
2026-03-25 22:38:46 +01:00
committed by Jeffrey Paul
parent e62962d192
commit 9a79d92c0d
7 changed files with 2545 additions and 87 deletions

View File

@@ -1017,3 +1017,474 @@ func TestGetOperCount(t *testing.T) {
t.Fatalf("expected 1 oper, got %d", count)
}
}
// --- Tier 2 Tests ---
func TestWildcardMatch(t *testing.T) {
t.Parallel()
tests := []struct {
pattern string
input string
match bool
}{
{"*!*@*", "nick!user@host", true},
{"*!*@*.example.com", "nick!user@foo.example.com", true},
{"*!*@*.example.com", "nick!user@other.net", false},
{"badnick!*@*", "badnick!user@host", true},
{"badnick!*@*", "goodnick!user@host", false},
{"nick!user@host", "nick!user@host", true},
{"nick!user@host", "nick!user@other", false},
{"*", "anything", true},
{"?ick!*@*", "nick!user@host", true},
{"?ick!*@*", "nn!user@host", false},
// Case-insensitive.
{"Nick!*@*", "nick!user@host", true},
}
for _, tc := range tests {
result := db.MatchBanMask(tc.pattern, tc.input)
if result != tc.match {
t.Errorf(
"MatchBanMask(%q, %q) = %v, want %v",
tc.pattern, tc.input, result, tc.match,
)
}
}
}
func TestChannelBanCRUD(t *testing.T) {
t.Parallel()
database := setupTestDB(t)
ctx := t.Context()
chID, err := database.GetOrCreateChannel(ctx, "#test")
if err != nil {
t.Fatal(err)
}
// No bans initially.
bans, err := database.ListChannelBans(ctx, chID)
if err != nil {
t.Fatal(err)
}
if len(bans) != 0 {
t.Fatalf("expected 0 bans, got %d", len(bans))
}
// Add a ban.
err = database.AddChannelBan(
ctx, chID, "*!*@evil.com", "op",
)
if err != nil {
t.Fatal(err)
}
bans, err = database.ListChannelBans(ctx, chID)
if err != nil {
t.Fatal(err)
}
if len(bans) != 1 {
t.Fatalf("expected 1 ban, got %d", len(bans))
}
if bans[0].Mask != "*!*@evil.com" {
t.Fatalf("wrong mask: %s", bans[0].Mask)
}
// Duplicate add is ignored (OR IGNORE).
err = database.AddChannelBan(
ctx, chID, "*!*@evil.com", "op2",
)
if err != nil {
t.Fatal(err)
}
bans, _ = database.ListChannelBans(ctx, chID)
if len(bans) != 1 {
t.Fatalf("expected 1 ban after dup, got %d", len(bans))
}
// Remove ban.
err = database.RemoveChannelBan(
ctx, chID, "*!*@evil.com",
)
if err != nil {
t.Fatal(err)
}
bans, _ = database.ListChannelBans(ctx, chID)
if len(bans) != 0 {
t.Fatalf("expected 0 bans after remove, got %d", len(bans))
}
}
func TestIsSessionBanned(t *testing.T) {
t.Parallel()
database := setupTestDB(t)
ctx := t.Context()
sid, _, _, err := database.CreateSession(
ctx, "victim", "victim", "evil.com", "",
)
if err != nil {
t.Fatal(err)
}
chID, err := database.GetOrCreateChannel(ctx, "#bantest")
if err != nil {
t.Fatal(err)
}
// Not banned initially.
banned, err := database.IsSessionBanned(ctx, chID, sid)
if err != nil {
t.Fatal(err)
}
if banned {
t.Fatal("should not be banned initially")
}
// Add ban matching the hostmask.
err = database.AddChannelBan(
ctx, chID, "*!*@evil.com", "op",
)
if err != nil {
t.Fatal(err)
}
banned, err = database.IsSessionBanned(ctx, chID, sid)
if err != nil {
t.Fatal(err)
}
if !banned {
t.Fatal("should be banned")
}
}
func TestChannelInviteOnly(t *testing.T) {
t.Parallel()
database := setupTestDB(t)
ctx := t.Context()
chID, err := database.GetOrCreateChannel(ctx, "#invite")
if err != nil {
t.Fatal(err)
}
// Default: not invite-only.
isIO, err := database.IsChannelInviteOnly(ctx, chID)
if err != nil {
t.Fatal(err)
}
if isIO {
t.Fatal("should not be invite-only by default")
}
// Set invite-only.
err = database.SetChannelInviteOnly(ctx, chID, true)
if err != nil {
t.Fatal(err)
}
isIO, _ = database.IsChannelInviteOnly(ctx, chID)
if !isIO {
t.Fatal("should be invite-only")
}
// Unset.
err = database.SetChannelInviteOnly(ctx, chID, false)
if err != nil {
t.Fatal(err)
}
isIO, _ = database.IsChannelInviteOnly(ctx, chID)
if isIO {
t.Fatal("should not be invite-only")
}
}
func TestChannelInviteCRUD(t *testing.T) {
t.Parallel()
database := setupTestDB(t)
ctx := t.Context()
sid, _, _, err := database.CreateSession(
ctx, "invited", "", "", "",
)
if err != nil {
t.Fatal(err)
}
chID, err := database.GetOrCreateChannel(ctx, "#inv")
if err != nil {
t.Fatal(err)
}
// No invite initially.
has, err := database.HasChannelInvite(ctx, chID, sid)
if err != nil {
t.Fatal(err)
}
if has {
t.Fatal("should not have invite")
}
// Add invite.
err = database.AddChannelInvite(ctx, chID, sid, "op")
if err != nil {
t.Fatal(err)
}
has, _ = database.HasChannelInvite(ctx, chID, sid)
if !has {
t.Fatal("should have invite")
}
// Clear invite.
err = database.ClearChannelInvite(ctx, chID, sid)
if err != nil {
t.Fatal(err)
}
has, _ = database.HasChannelInvite(ctx, chID, sid)
if has {
t.Fatal("invite should be cleared")
}
}
func TestChannelSecret(t *testing.T) {
t.Parallel()
database := setupTestDB(t)
ctx := t.Context()
chID, err := database.GetOrCreateChannel(ctx, "#secret")
if err != nil {
t.Fatal(err)
}
// Default: not secret.
isSec, err := database.IsChannelSecret(ctx, chID)
if err != nil {
t.Fatal(err)
}
if isSec {
t.Fatal("should not be secret by default")
}
err = database.SetChannelSecret(ctx, chID, true)
if err != nil {
t.Fatal(err)
}
isSec, _ = database.IsChannelSecret(ctx, chID)
if !isSec {
t.Fatal("should be secret")
}
}
// createTestSession is a helper to create a session and
// return only the session ID.
func createTestSession(
t *testing.T,
database *db.Database,
nick string,
) int64 {
t.Helper()
sid, _, _, err := database.CreateSession(
t.Context(), nick, "", "", "",
)
if err != nil {
t.Fatalf("create session %s: %v", nick, err)
}
return sid
}
func TestSecretChannelFiltering(t *testing.T) {
t.Parallel()
database := setupTestDB(t)
ctx := t.Context()
// Create two sessions.
sid1 := createTestSession(t, database, "member")
sid2 := createTestSession(t, database, "outsider")
// Create a secret channel.
chID, _ := database.GetOrCreateChannel(ctx, "#secret")
_ = database.SetChannelSecret(ctx, chID, true)
_ = database.JoinChannel(ctx, chID, sid1)
// Create a non-secret channel.
chID2, _ := database.GetOrCreateChannel(ctx, "#public")
_ = database.JoinChannel(ctx, chID2, sid1)
// Member should see both.
list, err := database.ListAllChannelsWithCountsFiltered(
ctx, sid1,
)
if err != nil {
t.Fatal(err)
}
if len(list) != 2 {
t.Fatalf("member should see 2 channels, got %d", len(list))
}
// Outsider should only see public.
list, _ = database.ListAllChannelsWithCountsFiltered(
ctx, sid2,
)
if len(list) != 1 {
t.Fatalf("outsider should see 1 channel, got %d", len(list))
}
if list[0].Name != "#public" {
t.Fatalf("outsider should see #public, got %s", list[0].Name)
}
}
func TestWhoisChannelFiltering(t *testing.T) {
t.Parallel()
database := setupTestDB(t)
ctx := t.Context()
sid1 := createTestSession(t, database, "target")
sid2 := createTestSession(t, database, "querier")
// Create secret channel, target joins it.
chID, _ := database.GetOrCreateChannel(ctx, "#hidden")
_ = database.SetChannelSecret(ctx, chID, true)
_ = database.JoinChannel(ctx, chID, sid1)
// Querier (non-member) should not see the channel.
channels, err := database.GetSessionChannelsFiltered(
ctx, sid1, sid2,
)
if err != nil {
t.Fatal(err)
}
if len(channels) != 0 {
t.Fatalf(
"querier should see 0 channels, got %d",
len(channels),
)
}
// Target querying self should see it.
channels, _ = database.GetSessionChannelsFiltered(
ctx, sid1, sid1,
)
if len(channels) != 1 {
t.Fatalf(
"self-query should see 1 channel, got %d",
len(channels),
)
}
}
//nolint:dupl // structurally similar to TestChannelUserLimit
func TestChannelKey(t *testing.T) {
t.Parallel()
database := setupTestDB(t)
ctx := t.Context()
chID, err := database.GetOrCreateChannel(ctx, "#keyed")
if err != nil {
t.Fatal(err)
}
// Default: no key.
key, err := database.GetChannelKey(ctx, chID)
if err != nil {
t.Fatal(err)
}
if key != "" {
t.Fatalf("expected empty key, got %q", key)
}
// Set key.
err = database.SetChannelKey(ctx, chID, "secret123")
if err != nil {
t.Fatal(err)
}
key, _ = database.GetChannelKey(ctx, chID)
if key != "secret123" {
t.Fatalf("expected secret123, got %q", key)
}
// Clear key.
err = database.SetChannelKey(ctx, chID, "")
if err != nil {
t.Fatal(err)
}
key, _ = database.GetChannelKey(ctx, chID)
if key != "" {
t.Fatalf("expected empty key, got %q", key)
}
}
//nolint:dupl // structurally similar to TestChannelKey
func TestChannelUserLimit(t *testing.T) {
t.Parallel()
database := setupTestDB(t)
ctx := t.Context()
chID, err := database.GetOrCreateChannel(ctx, "#limited")
if err != nil {
t.Fatal(err)
}
// Default: no limit.
limit, err := database.GetChannelUserLimit(ctx, chID)
if err != nil {
t.Fatal(err)
}
if limit != 0 {
t.Fatalf("expected 0 limit, got %d", limit)
}
// Set limit.
err = database.SetChannelUserLimit(ctx, chID, 50)
if err != nil {
t.Fatal(err)
}
limit, _ = database.GetChannelUserLimit(ctx, chID)
if limit != 50 {
t.Fatalf("expected 50, got %d", limit)
}
// Clear limit.
err = database.SetChannelUserLimit(ctx, chID, 0)
if err != nil {
t.Fatal(err)
}
limit, _ = database.GetChannelUserLimit(ctx, chID)
if limit != 0 {
t.Fatalf("expected 0, got %d", limit)
}
}