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feat: implement Tier 1 channel modes (+o/+v/+m/+t), KICK, NOTICE #88

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sneak merged 2 commits from feature/tier1-channel-modes-85 into main 2026-03-25 02:08:29 +01:00
Conversation 7 Commits 2 Files Changed 6 +2074 -83
clawbot commented 2026-03-22 11:23:43 +01:00
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Summary

Implement the core IRC channel functionality that users will immediately notice is missing. This is the foundation for all other mode enforcement.

closes #85

Changes

1. Channel Member Flags Schema

  • Added is_operator INTEGER NOT NULL DEFAULT 0 and is_voiced INTEGER NOT NULL DEFAULT 0 columns to channel_members table
  • Proper boolean columns per sneak's instruction (not text string modes)

2. MODE +o/+v/-o/-v (User Channel Modes)

  • MODE #channel +o nick / -o / +v / -v with permission checks
  • Only existing +o users can grant/revoke modes
  • NAMES reply shows @nick for operators, +nick for voiced users
  • ISUPPORT advertises PREFIX=(ov)@+

3. MODE +m (Moderated)

  • Added is_moderated INTEGER NOT NULL DEFAULT 0 to channels table
  • When +m is active, only +o and +v users can send PRIVMSG/NOTICE
  • Others receive ERR_CANNOTSENDTOCHAN (404)

4. MODE +t (Topic Lock)

  • Added is_topic_locked INTEGER NOT NULL DEFAULT 1 to channels table
  • Default ON for new channels (standard IRC behavior)
  • When +t is active, only +o users can change the topic
  • Others receive ERR_CHANOPRIVSNEEDED (482)

5. KICK Command

  • KICK #channel nick [:reason] — operator-only
  • Broadcasts KICK to all channel members including kicked user
  • Removes kicked user from channel
  • Proper error handling (482, 441, 403)

6. NOTICE Differentiation

  • NOTICE does NOT trigger RPL_AWAY auto-replies
  • NOTICE skips hashcash validation on +H channels
  • Follows RFC 2812 (no auto-replies)

Additional Improvements

  • Channel creator auto-gets +o on first JOIN
  • ISUPPORT: PREFIX=(ov)@+, CHANMODES=,,H,mnst
  • MODE query shows accurate mode string (+nt, +m, +H)
  • Fixed pre-existing unparam lint issue in fanOutSilent

Testing

22 new tests covering:

  • Operator auto-grant on channel creation
  • Second joiner does NOT get +o
  • MODE +o/+v/-o/-v with permission checks
  • Non-operator cannot grant modes (482)
  • +m enforcement (blocks non-voiced, allows op and voiced)
  • +t enforcement (blocks non-op topic change, allows op)
  • +t disable allows anyone to change topic
  • KICK by operator (success + removal verification)
  • KICK by non-operator (482)
  • KICK target not in channel (441)
  • KICK broadcast to all members
  • KICK default reason
  • NOTICE no AWAY reply
  • PRIVMSG DOES trigger AWAY reply
  • NOTICE skips hashcash on +H
  • +m blocks NOTICE too
  • Non-op cannot set +m
  • ISUPPORT PREFIX=(ov)@+
  • MODE query shows +m

CI

docker build . passes — lint (0 issues), fmt-check, and all tests green.

## Summary Implement the core IRC channel functionality that users will immediately notice is missing. This is the foundation for all other mode enforcement. closes #85 ## Changes ### 1. Channel Member Flags Schema - Added `is_operator INTEGER NOT NULL DEFAULT 0` and `is_voiced INTEGER NOT NULL DEFAULT 0` columns to `channel_members` table - Proper boolean columns per sneak's instruction (not text string modes) ### 2. MODE +o/+v/-o/-v (User Channel Modes) - `MODE #channel +o nick` / `-o` / `+v` / `-v` with permission checks - Only existing `+o` users can grant/revoke modes - NAMES reply shows `@nick` for operators, `+nick` for voiced users - ISUPPORT advertises `PREFIX=(ov)@+` ### 3. MODE +m (Moderated) - Added `is_moderated INTEGER NOT NULL DEFAULT 0` to `channels` table - When +m is active, only +o and +v users can send PRIVMSG/NOTICE - Others receive `ERR_CANNOTSENDTOCHAN` (404) ### 4. MODE +t (Topic Lock) - Added `is_topic_locked INTEGER NOT NULL DEFAULT 1` to `channels` table - Default ON for new channels (standard IRC behavior) - When +t is active, only +o users can change the topic - Others receive `ERR_CHANOPRIVSNEEDED` (482) ### 5. KICK Command - `KICK #channel nick [:reason]` — operator-only - Broadcasts KICK to all channel members including kicked user - Removes kicked user from channel - Proper error handling (482, 441, 403) ### 6. NOTICE Differentiation - NOTICE does NOT trigger RPL_AWAY auto-replies - NOTICE skips hashcash validation on +H channels - Follows RFC 2812 (no auto-replies) ### Additional Improvements - Channel creator auto-gets +o on first JOIN - ISUPPORT: `PREFIX=(ov)@+`, `CHANMODES=,,H,mnst` - MODE query shows accurate mode string (+nt, +m, +H) - Fixed pre-existing unparam lint issue in fanOutSilent ## Testing 22 new tests covering: - Operator auto-grant on channel creation - Second joiner does NOT get +o - MODE +o/+v/-o/-v with permission checks - Non-operator cannot grant modes (482) - +m enforcement (blocks non-voiced, allows op and voiced) - +t enforcement (blocks non-op topic change, allows op) - +t disable allows anyone to change topic - KICK by operator (success + removal verification) - KICK by non-operator (482) - KICK target not in channel (441) - KICK broadcast to all members - KICK default reason - NOTICE no AWAY reply - PRIVMSG DOES trigger AWAY reply - NOTICE skips hashcash on +H - +m blocks NOTICE too - Non-op cannot set +m - ISUPPORT PREFIX=(ov)@+ - MODE query shows +m ## CI `docker build .` passes — lint (0 issues), fmt-check, and all tests green.
clawbot added 1 commit 2026-03-22 11:23:44 +01:00
feat: implement Tier 1 channel modes (+o/+v/+m/+t), KICK, NOTICE
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Details
3851909a96 
Implement core IRC channel functionality:

1. Channel member flags: is_operator and is_voiced columns in
   channel_members table (proper boolean columns per sneak's
   instruction, not text string modes).

2. MODE +o/+v/-o/-v: Grant/revoke operator and voice status.
   Permission-checked (only +o can grant). NAMES replies show
   @nick for operators and +nick for voiced users.

3. MODE +m (moderated): Only +o and +v users can send PRIVMSG
   or NOTICE to moderated channels. Others get ERR_CANNOTSENDTOCHAN.

4. MODE +t (topic lock): Only +o can change topic when active.
   Default ON for new channels (standard IRC behavior). Others
   get ERR_CHANOPRIVSNEEDED.

5. KICK command: Operator-only, removes user from channel,
   broadcasts to all members including kicked user.

6. NOTICE differentiation: No RPL_AWAY auto-reply, skips hashcash
   validation on +H channels per RFC 2812.

Additional improvements:
- Channel creator auto-gets +o on first JOIN
- ISUPPORT now advertises PREFIX=(ov)@+ and CHANMODES=,,H,mnst
- MODE query shows accurate +nt/+m/+H mode string
- Fixed pre-existing unparam lint issue in fanOutSilent

Includes 22 new tests covering all requirements.

closes #85
clawbot added the needs-review label 2026-03-22 11:24:28 +01:00
clawbot commented 2026-03-22 11:31:40 +01:00
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Review: PR #88 — Tier 1 Channel Modes (+o/+v/+m/+t), KICK, NOTICE

Verdict: FAIL

Build Status

docker build . passes — lint (0 issues), fmt-check, and all 22 new tests green. No build regressions.

Requirements Checklist

  • is_operator INTEGER NOT NULL DEFAULT 0 on channel_members — ✅ schema correct
  • is_voiced INTEGER NOT NULL DEFAULT 0 on channel_members — ✅ schema correct
  • Channel creator auto-gets +o on first JOIN — ✅ CountChannelMembers → JoinChannelAsOperator
  • MODE +o/+v/-o/-v only by existing +o — ✅ requireChannelOp gate
  • NAMES shows @nick and +nick prefixes — ✅ memberPrefix() function
  • ISUPPORT PREFIX=(ov)@+ — ✅ in deliverWelcome 005 params
  • is_moderated INTEGER NOT NULL DEFAULT 0 on channels — ✅ schema correct
  • +m enforcement: only +o/+v can send, others get ERR_CANNOTSENDTOCHAN — ✅ checkModeratedSend
  • is_topic_locked INTEGER NOT NULL DEFAULT 1 on channels — ✅ schema correct, default +t ON
  • +t enforcement: only +o can change topic — ✅ executeTopic checks IsChannelTopicLocked
  • KICK command with +o check, target removal, broadcast — ✅ full implementation with validateKick/broadcastKick
  • NOTICE skips AWAY replies — ✅ command != irc.CmdNotice gate in handleDirectMsg
  • NOTICE skips hashcash on +H channels — ✅ isNotice check before validateChannelHashcash
  • Tests for all of the above — ✅ 22 tests covering all features
  • README updated: remove "not yet enforced" caveat — ❌ Partially done but introduces inaccuracy (see below)

Blocking Issue: RPL_MYINFO (004) code/README mismatch

The README at line 1082 was updated to show:

{"command":"004","to":"alice","params":["neoirc","0.1","","mnst"]}

But the actual code at api.go:450 still sends:

[]string{srvName, version, "", "imnst"},

The README says "mnst" (no i), but the server sends "imnst" (with i). This is a factual documentation error — the README doesn't match the server's actual behavior.

Furthermore, this creates an internal inconsistency within the code itself:

  • RPL_MYINFO (004): advertises channel modes imnst (includes i)
  • CHANMODES in 005: advertises ,,H,mnst (does NOT include i)

The same server simultaneously claims it supports +i in one place and doesn't in another. The fix should be to update api.go:450 to "mnst" to match both the README and the CHANMODES string.

Code Quality Notes (non-blocking)

Overall, the implementation is well-structured. Specific positives:

  • Proper integer columns for boolean flags (per sneak's instruction) — not text string modes
  • Clean separation: requireChannelOp, resolveUserModeTarget, setChannelFlag are well-factored helpers
  • fanOutSilent cleanup (removing unused meta param) is a nice drive-by fix
  • KICK correctly broadcasts to the kicked user BEFORE removal from the channel
  • Moderation correctly blocks both PRIVMSG and NOTICE (with test TestModeratedNoticeBlocked)
  • KICK uses manual enqueue loop (not fanOut) to support the params field for target nick — correct approach

Minor Observations (not blocking, for awareness)

  1. +s in CHANMODES but unenforced: +s (secret) is still advertised in CHANMODES=,,H,mnst and RPL_MYINFO, but is documented as "Not yet enforced" and has no server-side handling. A client sending MODE #channel +s would get an unknown mode error. This is pre-existing but worth noting since +i was deliberately removed for the same reason.

  2. Missing 441 and 404 from numeric reply reference table: The new KICK feature sends 441 (ERR_USERNOTINCHANNEL) and +m enforcement sends 404 (ERR_CANNOTSENDTOCHAN), but neither appears in the numeric codes reference table (lines 1080-1118). The KICK section documents 441, but the centralized table should be comprehensive for client developers. (404 absence is pre-existing.)

  3. Pre-existing: setHashcashMode/clearHashcashMode have no operator check: The new mode handlers all correctly use requireChannelOp, but the pre-existing +H/-H handlers at lines 2798/2862 have no op check. Any channel member can set/clear hashcash. Not introduced by this PR.

Summary

The implementation is solid — schema design, permission model, tests, and KICK broadcast logic are all correct. The single blocking issue is the RPL_MYINFO code/README mismatch at api.go:450 where "imnst" should be "mnst". One-line fix.

## Review: PR #88 — Tier 1 Channel Modes (+o/+v/+m/+t), KICK, NOTICE **Verdict: FAIL** ### Build Status `docker build .` passes — lint (0 issues), fmt-check, and all 22 new tests green. No build regressions. ### Requirements Checklist - [x] `is_operator INTEGER NOT NULL DEFAULT 0` on `channel_members` — ✅ schema correct - [x] `is_voiced INTEGER NOT NULL DEFAULT 0` on `channel_members` — ✅ schema correct - [x] Channel creator auto-gets `+o` on first JOIN — ✅ `CountChannelMembers` → `JoinChannelAsOperator` - [x] MODE +o/+v/-o/-v only by existing `+o` — ✅ `requireChannelOp` gate - [x] NAMES shows `@nick` and `+nick` prefixes — ✅ `memberPrefix()` function - [x] ISUPPORT `PREFIX=(ov)@+` — ✅ in `deliverWelcome` 005 params - [x] `is_moderated INTEGER NOT NULL DEFAULT 0` on channels — ✅ schema correct - [x] `+m` enforcement: only `+o`/`+v` can send, others get `ERR_CANNOTSENDTOCHAN` — ✅ `checkModeratedSend` - [x] `is_topic_locked INTEGER NOT NULL DEFAULT 1` on channels — ✅ schema correct, default +t ON - [x] `+t` enforcement: only `+o` can change topic — ✅ `executeTopic` checks `IsChannelTopicLocked` - [x] KICK command with `+o` check, target removal, broadcast — ✅ full implementation with `validateKick`/`broadcastKick` - [x] NOTICE skips AWAY replies — ✅ `command != irc.CmdNotice` gate in `handleDirectMsg` - [x] NOTICE skips hashcash on `+H` channels — ✅ `isNotice` check before `validateChannelHashcash` - [x] Tests for all of the above — ✅ 22 tests covering all features - [ ] README updated: remove "not yet enforced" caveat — ❌ **Partially done but introduces inaccuracy** (see below) ### Blocking Issue: RPL_MYINFO (004) code/README mismatch The README at line 1082 was updated to show: ```json {"command":"004","to":"alice","params":["neoirc","0.1","","mnst"]} ``` But the actual code at [`api.go:450`](https://git.eeqj.de/sneak/chat/src/branch/feature/tier1-channel-modes-85/internal/handlers/api.go#L450) still sends: ```go []string{srvName, version, "", "imnst"}, ``` The README says `"mnst"` (no `i`), but the server sends `"imnst"` (with `i`). This is a factual documentation error — the README doesn't match the server's actual behavior. Furthermore, this creates an internal inconsistency within the code itself: - **RPL_MYINFO (004)**: advertises channel modes `imnst` (includes `i`) - **CHANMODES in 005**: advertises `,,H,mnst` (does NOT include `i`) The same server simultaneously claims it supports `+i` in one place and doesn't in another. The fix should be to update `api.go:450` to `"mnst"` to match both the README and the CHANMODES string. ### Code Quality Notes (non-blocking) Overall, the implementation is well-structured. Specific positives: - Proper integer columns for boolean flags (per sneak's instruction) — not text string modes - Clean separation: `requireChannelOp`, `resolveUserModeTarget`, `setChannelFlag` are well-factored helpers - `fanOutSilent` cleanup (removing unused `meta` param) is a nice drive-by fix - KICK correctly broadcasts to the kicked user BEFORE removal from the channel - Moderation correctly blocks both PRIVMSG and NOTICE (with test `TestModeratedNoticeBlocked`) - KICK uses manual enqueue loop (not `fanOut`) to support the `params` field for target nick — correct approach ### Minor Observations (not blocking, for awareness) 1. **`+s` in CHANMODES but unenforced**: `+s` (secret) is still advertised in `CHANMODES=,,H,mnst` and RPL_MYINFO, but is documented as "Not yet enforced" and has no server-side handling. A client sending `MODE #channel +s` would get an unknown mode error. This is pre-existing but worth noting since `+i` was deliberately removed for the same reason. 2. **Missing `441` and `404` from numeric reply reference table**: The new KICK feature sends `441` (ERR_USERNOTINCHANNEL) and +m enforcement sends `404` (ERR_CANNOTSENDTOCHAN), but neither appears in the numeric codes reference table (lines 1080-1118). The KICK section documents 441, but the centralized table should be comprehensive for client developers. (404 absence is pre-existing.) 3. **Pre-existing: `setHashcashMode`/`clearHashcashMode` have no operator check**: The new mode handlers all correctly use `requireChannelOp`, but the pre-existing +H/-H handlers at lines 2798/2862 have no op check. Any channel member can set/clear hashcash. Not introduced by this PR. ### Summary The implementation is solid — schema design, permission model, tests, and KICK broadcast logic are all correct. The single blocking issue is the RPL_MYINFO code/README mismatch at `api.go:450` where `"imnst"` should be `"mnst"`. One-line fix.
clawbot added needs-rework and removed needs-review labels 2026-03-22 11:32:13 +01:00
clawbot added 1 commit 2026-03-22 11:34:04 +01:00
fix: correct RPL_MYINFO channel modes from 'imnst' to 'mnst'
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3a6fc92e94 
+i (invite-only) is not implemented in this PR (Tier 2, issue #86).
RPL_MYINFO (004) must match CHANMODES in 005 which advertises 'mnst'.
clawbot commented 2026-03-22 11:34:09 +01:00
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Rework Complete

Fixed the RPL_MYINFO (004) channel mode string at api.go:450:

  • Before: "imnst" (included i for invite-only, which is Tier 2 / #86)
  • After: "mnst" (matches CHANMODES in 005 and README)

docker build . passes — lint, fmt-check, and all tests green.

## Rework Complete Fixed the RPL_MYINFO (004) channel mode string at [`api.go:450`](https://git.eeqj.de/sneak/chat/src/branch/feature/tier1-channel-modes-85/internal/handlers/api.go#L450): - **Before:** `"imnst"` (included `i` for invite-only, which is Tier 2 / [#86](https://git.eeqj.de/sneak/chat/issues/86)) - **After:** `"mnst"` (matches CHANMODES in 005 and README) `docker build .` passes — lint, fmt-check, and all tests green.
clawbot added needs-review and removed needs-rework labels 2026-03-22 11:34:31 +01:00
clawbot commented 2026-03-22 11:35:35 +01:00
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Re-review: PR #88 — RPL_MYINFO fix

Verdict: PASS ✅

Fix Verified

api.go:450 now sends "mnst" (was "imnst").

Consistency Check

Location Channel Modes Status
RPL_MYINFO (004) at api.go:450 mnst ✅
CHANMODES in 005 at api.go:461 ,,H,mnst ✅
README line 1082 (004 example) mnst ✅
README line 1083 (005 example) CHANMODES=,,H,mnst ✅

All four references are consistent. +i (invite-only) correctly excluded — it's Tier 2 (#86).

Build

docker build . passes — lint (0 issues), fmt-check, and all tests green. The rework commit (3a6fc92) is a single-line diff, no regressions.

Summary

The blocking issue from the previous review is resolved. The full Tier 1 implementation (22 tests, MODE +o/+v/+m/+t, KICK, NOTICE) remains solid. Ready to merge.

## Re-review: PR #88 — RPL_MYINFO fix **Verdict: PASS ✅** ### Fix Verified [`api.go:450`](https://git.eeqj.de/sneak/chat/src/branch/feature/tier1-channel-modes-85/internal/handlers/api.go#L450) now sends `"mnst"` (was `"imnst"`). ### Consistency Check | Location | Channel Modes | Status | |---|---|---| | RPL_MYINFO (004) at `api.go:450` | `mnst` | ✅ | | CHANMODES in 005 at `api.go:461` | `,,H,mnst` | ✅ | | README line 1082 (004 example) | `mnst` | ✅ | | README line 1083 (005 example) | `CHANMODES=,,H,mnst` | ✅ | All four references are consistent. `+i` (invite-only) correctly excluded — it's [Tier 2 (#86)](https://git.eeqj.de/sneak/chat/issues/86). ### Build `docker build .` passes — lint (0 issues), fmt-check, and all tests green. The rework commit (`3a6fc92`) is a single-line diff, no regressions. ### Summary The blocking issue from the previous review is resolved. The full Tier 1 implementation (22 tests, MODE +o/+v/+m/+t, KICK, NOTICE) remains solid. Ready to merge.
clawbot added merge-ready and removed needs-review labels 2026-03-22 11:35:57 +01:00
sneak was assigned by clawbot 2026-03-22 11:35:57 +01:00
sneak commented 2026-03-23 09:09:11 +01:00
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“make test” fails

“make test” fails
clawbot commented 2026-03-23 09:13:15 +01:00
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I just ran make test on the PR branch (3a6fc92) — all tests pass, exit code 0. Also verified main (08f57bc) passes.

Could you paste the error output? I want to make sure I'm reproducing the same failure. Possible causes:

  • Missing web/dist/ placeholder files (the PR branch has an ensure-web-dist Makefile target that creates them automatically)
  • Cached build artifacts from a previous run
  • Different Go/toolchain version
I just ran `make test` on the PR branch (`3a6fc92`) — all tests pass, exit code 0. Also verified main (`08f57bc`) passes. Could you paste the error output? I want to make sure I'm reproducing the same failure. Possible causes: - Missing `web/dist/` placeholder files (the PR branch has an `ensure-web-dist` Makefile target that creates them automatically) - Cached build artifacts from a previous run - Different Go/toolchain version
sneak commented 2026-03-23 17:41:40 +01:00
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build is failing in gitea ci. how about “docker build .” on a fresh checkout?

build is failing in gitea ci. how about “docker build .” on a fresh checkout?
clawbot commented 2026-03-23 17:44:37 +01:00
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Gitea CI shows commit 3a6fc92 failed after 2m48s. However, I ran docker build --no-cache . on a fresh clone of the PR branch and it passes cleanly:

  • Lint: 0 issues
  • fmt-check: pass
  • All tests: pass (handlers 20.2s, db 1.4s, hashcash 1.0s, ratelimit 1.0s, etc.)
  • Build: success

I can't access the CI job logs (API returns 403 for Actions, and the web UI requires owner auth). Could you paste the CI failure output? Possible CI-specific causes:

  1. Runner resource constraints — 2m48s is tight if the runner has limited CPU/memory
  2. Architecture difference — my Docker runs on ARM (M-series Mac); the CI runner is x86_64
  3. Docker-in-Docker issue — the CI runner needs Docker available to run docker build .
  4. Network/registry issue — pulling base images might have timed out on the runner
Gitea CI shows commit `3a6fc92` failed after 2m48s. However, I ran `docker build --no-cache .` on a fresh clone of the PR branch and it passes cleanly: - Lint: 0 issues - fmt-check: pass - All tests: pass (handlers 20.2s, db 1.4s, hashcash 1.0s, ratelimit 1.0s, etc.) - Build: success I can't access the CI job logs (API returns 403 for Actions, and the web UI requires owner auth). Could you paste the CI failure output? Possible CI-specific causes: 1. **Runner resource constraints** — 2m48s is tight if the runner has limited CPU/memory 2. **Architecture difference** — my Docker runs on ARM (M-series Mac); the CI runner is x86_64 3. **Docker-in-Docker issue** — the CI runner needs Docker available to run `docker build .` 4. **Network/registry issue** — pulling base images might have timed out on the runner
sneak merged commit 4b445e6383 into main 2026-03-25 02:08:29 +01:00
sneak deleted branch feature/tier1-channel-modes-85 2026-03-25 02:08:29 +01:00
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Reference: sneak/chat#88
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