feat: operator cancel of pre-trade orders via CancelOrder RPC - #939
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Lets the daemon key (the gRPC `CancelOrder` path, which synthesises `identity = my_keys.public_key()`) cancel an order that is still pre-trade — `pending`, or `waiting-taker-bond` while a taker is mid-bond — so range-order maker bonds can be released ahead of a Lightning node migration instead of waiting up to `max_expiration_days`. `admin_cancel_action` gains a branch before the dispute/solver gates that only the daemon key may take (any other identity → `NotAuthorized`). The new `admin_cancel_pending_order` mirrors the maker's own pending cancel: publish `CanceledByAdmin`, persist with the pre-trade CAS so a concurrent take wins (`NotAllowedByStatus` + republish of the winning state), notify the maker and bonded takers with `AdminCanceled`, release taker bonds and resolve the maker bond at range close. Dispute orders keep the existing behaviour; any other status is still refused. Tests: happy path (maker notified), refusal of a non-daemon identity, taker bond released + taker notified, `waiting-taker-bond` accepted with locked bond released, and the CAS-miss branch. Docs: RPC.md CancelOrder semantics, runbook behaviour matrix + drain step (and open question 1 answered), LIGHTNING_OPS drain step. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PWN1jHfoZxfjusDVB9n3GW
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Included review availability: Your plan provides up to 2 included reviews per hour; 0 remain after this review. WalkthroughThe change adds daemon-key cancellation for pre-trade orders. It adds CAS protection, notifications, taker-bond release, maker-bond resolution, race handling, tests, and operator documentation. ChangesOperator pre-trade cancellation
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🟠 High · up to The newly expanded administrative cancellation can be invoked by any caller who can reach the RPC service when authentication is unset, allowing unauthorized order cancellation and bond side effects. In addition, transient bond-release failures may leave cleanup incomplete while cancellation is reported, so the PR is not safe to merge without addressing these risks. Suggested reviewers: Sequence Diagram(s)sequenceDiagram
participant Operator
participant CancelOrder
participant AdminCancel
participant OrderStore
participant NotificationQueue
participant Lightning
Operator->>CancelOrder: Cancel pre-trade order
CancelOrder->>AdminCancel: daemon-key request
AdminCancel->>OrderStore: CAS to canceled-by-admin
OrderStore-->>AdminCancel: success or concurrent take
AdminCancel->>NotificationQueue: AdminCanceled notices
AdminCancel->>Lightning: release and resolve bonds
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| // Prospective takers with a bond in flight must not keep waiting on an | ||
| // order that will never be taken. A lookup failure is logged, not | ||
| // propagated: the release below still runs. | ||
| match bond::db::find_active_bonds_for_order(pool, order.id).await { |
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If a take has already read the order as Pending but has not yet inserted its bond, this one-time lookup can return no bonds after the admin CAS succeeds; the stale take then creates a Requested bond, sends PayBondInvoice, loses its later Pending → WaitingTakerBond CAS, and returns without releasing the new bond. The RPC therefore reports a successful cancellation while the canceled order gains an open bond afterward, confusing the taker and blocking the migration drain's open_bonds counter until the invoice is canceled or expires. Add a status guard around bond creation or otherwise synchronize/recheck cleanup before declaring the cancellation complete.
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Confirmed and fixed in fd3ec8e. request_taker_bond now re-reads the order when its Pending → WaitingTakerBond CAS is lost: if the order closed (canceled / cooperatively-canceled / canceled-by-admin / expired) the freshly created bond is released and the taker gets Canceled (release_bond_if_order_closed); a loss to a sibling take or a fast lock leaves the bond in play. The paid case was already handled by on_bond_invoice_accepted; this closes the unpaid Requested window. Covered by cas_lost_to_admin_cancel_releases_requested_bond_and_notifies_taker and cas_lost_to_a_live_transition_keeps_the_bond. Note this also fixes the same pre-existing race with the maker's own pending cancel.
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Inline comments:
In `@src/app/admin_cancel.rs`:
- Around line 78-81: Harden the CancelOrder authentication path before the
admin_cancel_pending_order dispatch: when [rpc].auth_token is unset, require the
RPC listener to be loopback-only, otherwise require valid bearer authentication,
while preserving the existing identity check. Update docs/RPC.md at lines 44-46
to document this mandatory loopback-or-bearer requirement.
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docs/LIGHTNING_OPS.mddocs/MAINTENANCE_MODE_LN_MIGRATION.mddocs/RPC.mdsrc/app/admin_cancel.rs
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Codex review on #939: a take that read the order as Pending but inserts its bond after the operator (or maker) cancel's CAS committed leaves a `Requested` hold invoice open until CLTV expiry. The taker could still pay it, and it pins the maintenance drain's `open_bonds` counter. `request_taker_bond` now re-reads the order when its `Pending → WaitingTakerBond` CAS is lost: if the order closed (canceled / cooperatively-canceled / canceled-by-admin / expired) the bond is released and the taker told (`release_bond_if_order_closed`). A loss to a sibling take or a fast lock leaves the bond in play. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PWN1jHfoZxfjusDVB9n3GW
…e dispute cancel (#944) * feat: CancelOrderRequest.pretrade_only — refuse to fall through to the dispute cancel `CancelOrder` from the daemon key serves two very different intents: the solver's dispute resolution (cancel + refund seller) and, since #939, the operator's cancel of a still-pending order. A tool that means the latter (`mostro-cli admcancelpending`) had no way to say so: a mistyped id belonging to a dispute the daemon has taken would resolve that dispute and report a "pending order cancelled" success (Codex review on mostro-cli#191). Add `optional bool pretrade_only = 3` to `CancelOrderRequest`. When set the service looks the order up first and refuses anything that is not `pending` / `waiting-taker-bond` with `success = false` and the order's status in `error_message`, before any handler runs. Unset keeps the existing behaviour, so older clients are unaffected. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PWN1jHfoZxfjusDVB9n3GW * fix: pretrade_only refusal hints the dispute flow only for disputes Review follow-ups on the pretrade_only guard: - The "use the dispute flow (AdminCancel / AdminSettle)" hint was appended to every refusal, but it is only actionable when the order is actually in dispute; for active / fiat-sent / success / ... that flow is refused too, so the operator was sent to a second error. Append it only when the status is dispute. - Compare statuses with `Order::check_status` like admin_cancel.rs does instead of matching against `to_string()`. - docs/RPC.md: the client example was missing the new field and no longer compiled with prost; note that an older daemon silently drops the flag. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011V3amicePVbKtJ45jdVVoN --------- Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
…admin gRPC `admcancel` sends AdminCancel over Nostr signed with ADMIN_NSEC, which is the solver's dispute resolution. The daemon (MostroP2P/mostro#939) now lets the daemon key cancel a still-`pending` / `waiting-taker-bond` order through the `CancelOrder` gRPC, releasing the maker's bond at once so the maintenance drain does not wait for `max_expiration_days`. Add `admcancelpending -o <id>`, routed like `admsetmaintenance` through `run_rpc` (needs MOSTRO_RPC_URL / MOSTRO_RPC_TOKEN, not ADMIN_NSEC), with the `CancelOrderRequest` / `CancelOrderResponse` prost types and an `AdminRpcClient::cancel_order` method. Wire encoding pinned by a test. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PWN1jHfoZxfjusDVB9n3GW
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Summary
Lets the operator cancel orders that are still pre-trade (
pending, orwaiting-taker-bondwhile a taker is mid-bond) through the existingCancelOrderadmin gRPC (e.g.grpcurl … AdminService/CancelOrder; notemostro-cli admcancelgoes over Nostr withADMIN_NSECand only reaches this path when that key is the daemon's own), so open maker bonds (fixed and range orders alike) can be released at once ahead of a Lightning node migration instead of waiting up tomax_expiration_days(15 days by default).Follow-up to the maintenance-mode series (#933–#937); answers open question 1 of the runbook.
Behaviour
identity. A solver sendingAdminCancelover Nostr for a pre-trade order is refused withNotAuthorized. Dispute orders keep the existing solver flow; every other status is stillNotAllowedByStatus.canceled-by-admin, persist it with the pre-trade CAS (a concurrently committing take wins →NotAllowedByStatusand the winning state is republished), notify the maker and any bonded prospective taker withAdminCanceled, release taker bonds, resolve the maker bond (fixed order: released; range order: released, or settled once if a slice was slashed).Mirrors
cancel::cancel_pending_order_from_maker; no new RPC, proto or CLI change.Tests
daemon_key_cancels_pending_order_and_notifies_makerpending_cancel_refuses_non_daemon_identitypending_cancel_releases_and_notifies_bonded_takerdaemon_key_cancels_waiting_taker_bond_order_and_releases_bondpending_cancel_loses_cas_to_a_concurrent_takecargo fmt,cargo clippy --all-targets -D warnings, full suite green (1288 passed).Docs
docs/RPC.md: CancelOrder now documents both accepted cases.docs/MAINTENANCE_MODE_LN_MIGRATION.md: behaviour matrix row, drain step, open question 1 answered.docs/LIGHTNING_OPS.md: drain step.Test plan
CancelOrderon a pending range order with a locked maker bond → ordercanceled-by-admin, bondreleased, maker receivesAdminCanceledCancelOrderon awaiting-taker-bondorder → taker bond released, taker notifiedCancelOrderon an active/escrowed order still returnsNotAllowedByStatus🤖 Generated with Claude Code
https://claude.ai/code/session_01PWN1jHfoZxfjusDVB9n3GW
Summary by CodeRabbit
New Features
Bug Fixes
Documentation