8b182ac8b62ac21989f550a1b35de994468f50f5
10
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
  davideandClaude Sonnet 5.5
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54dbffb552 |
Credit deposits at deposit_confirmations and verify the round's coins with the quorum before paying (B-82, DEP-03, DEP-04, DEP-09, DEP-12, DEP-14, ELC-17, ELC-27, RND-21, RND-22, RND-25, RND-39, DAT-10, DAT-11, DAT-24, DAT-62, DAT-67, DAT-68, AUD-12, AUD-44, AUD-45, API-30, API-31, API-36, ADR-06, ADR-52)
A user could bet and then double-spend the 1-conference deposit that funded the bet with a private chain: the bet left the chain but its participant stayed `confirmed`, and the payout failed "insufficient pool UTXOs" for ever with everyone else's money stuck. Coinbase outputs were also credited at 1 confirmation (maturity is 120). Deposits - `round_config.deposit_confirmations` (default 6, 1-100, editable from /admin) is the threshold for a deposit; an output of a platform transaction (any txid of a pending_transactions row, RBF versions included) keeps 1; a coinbase output needs 120, recognised from the raw transaction, which must hash to the txid (`is_coinbase`, cached). `read_deposit_policy` / `classify_new_deposits` run between the read and the write, so no session is open across the lookup. - The quorum must also place the coin deep enough on our own tip (ELC-17). - Confirmed outputs short of their threshold are pending deposits (memory only, replaced at every refresh): shown in `pending_balance_sats` / `has_pending` (also for DEP-13's withdrawal message), never spendable. No scripthash notification announces a maturing deposit, so each new block refreshes only the users that have one, one task per user (DEP-09 now says so). Payout - `_trigger_payout` verifies the round's confirmed participants' bet outputs with the other servers (`verify_pool_outpoints`: strict majority of >= 2 answers per outpoint, a mempool-only coin or a tie gives no verdict) and builds from exactly those outpoints (RND-22), never from whatever else sits at the address. No quorum: `payout_failed`, `pool verification unavailable`, nothing changes. Bets that are gone become `reorged_out`, one `participant_reorged_out` row each, `pool_amount_sats` rewritten (only downward) in the same transaction, and the 70/30 split is computed on what is left. - Winner's own bet gone: nothing is built; `rounds.payout_blocked_at` (Alembic f2c64a8d1e93, with `deposit_confirmations`, plain add_column) is set, `payout_blocked` and the pause with `paused_reason = 'payout_blocked'` are written in one transaction; `POST /admin/resume` clears the mark and the next attempt verifies again. /admin/rounds returns it. - Rounds opened before B-80 (pool = the shared reserve address) keep the old active-server `listunspent` choice, since that address holds no single round's bets. Ambiguities resolved: the winner's row stays `confirmed` while held (AUD-45 says every participant whose bet is gone becomes `reorged_out`, but OPS-30/DAT-68 need the verification to repeat after the resume, which only a `confirmed` row allows); `/`'s deposit hint no longer says "1 confirmation" (7 languages, same keys); guides updated. Tests changed because the spec changed: listener tests that credited height-100 coins at tip 0 now set a tip past every threshold; the payout fixtures seed confirmed participants (the new source of the inputs) instead of an active-server `listunspent`, FakeNetwork answers the verification, and test_round_pool_address asserts the quorum is asked about the round's address. New: thresholds at exactly 6/5, configured value, coinbase at 119/120 and a mismatching or missing raw tx, platform outputs at 1, dust, quorum height, waiting-deposit display and disappearance, block-triggered refresh, resume, verification verdicts, gone bets excluded with the split recomputed, winner gone held and paused, held payouts untouched until the resume, re-verification after it, no quorum, a payout with 1 and with 400 participants against reserve+fee+dust, admin config bounds and migration. Mutation-checked: threshold 1, ignored coinbase, no height bound, no verification and no winner hold each fail tests. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> |
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davideandClaude Sonnet 5.5
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db24287ea5 |
Make the draw a commit-reveal at a fixed, confirmed, quorum-agreed height with a public proof (B-73, RND-14 … RND-20, RND-33 … RND-37, DAT-61 … DAT-66, API-25, API-45, AUD-24 … AUD-27, AUD-37, ELC-15, SEC-56, ADR-24, ADR-25)
The seed was the hash of the first block seen after the close, so a miner holding tickets
could withhold blocks until one made them win, the active Electrum server could pick which
real block was used by not announcing another (a failed corroboration even moved the draw to
the next block), and the participant order was the server-only `broadcast_at` with no
tie-break, so nobody could recompute the result.
- Open: every round gets a 32-byte `server_seed`, stored only Fernet-encrypted with the
master-xprv key (`server_seed_enc`), with its published `server_seed_hash`;
`draw_confirmations` is copied from round_config. The plaintext column is written only by
the reveal.
- Entering `drawing` (one transaction, `draw_committed` audit row): participants ordered by
bet txid, each `draw_position`, `participants_hash` (sha256 of `txid:vout:address\n`
lines; new `bet_vout`), `draw_height = tip_at_close + 1`. A tip of 0 keeps the round
`closing` (`draw_baseline_tip_unknown`, once per round). All persisted, so a resumed draw
reads rather than recomputes (the `_tick` branch itself is B-81).
- `_complete_draw` / `_wait_for_draw_block` replace `_wait_for_next_block`: wait for
`draw_confirmations` blocks from `draw_height`, then `ElectrumListener.agreed_block_hash`
asks every server, the active one included, for the header at that exact height (valid
work, >= 2 other answers, strict majority of all); no agreement means the same height is
asked again and `draw_header_corroboration_failed` is written once per distinct reported
hash. `draw_stalled` now counts from the last tip advance, or from when the quorum started
to fail. Seed = sha256(server_seed || block_hash || participants_hash), index = seed mod n.
- The winner, the seed and the reveal (`server_seed`, `winner_drawn` payload) are written in
one transaction; a round closing with no participants reveals too. A round opened before
this change (no commitment) is given a secret as it enters `drawing`.
- `GET /rounds/{id}/proof` (public, 404 `round_not_found`, translated in all 7 languages) and
the new fields on `GET /rounds/current`; `draw_confirmations` in `/admin/config` and the
/admin form; `server_seed_hash`/`draw_height` in `/admin/rounds`, never the secret.
- Alembic d3e8b15a7c42 (plain add_column / create_index, expression indexes untouched).
- Docs: the B-73 `*Stato:*`/`*Oggi:*` lines are gone, guides and CLAUDE.md describe the new
draw. Ambiguities resolved in api.md: the proof's participants also carry `amount_sats`
(RND-37 lists it); `seed` is decimal in the proof and hex in the audit row, as specified.
Tests changed because the spec changed: ElectrumListener.corroborate_header (asked only the
other servers about the block the active one announced) is replaced by agreed_block_hash and
its quorum tests ported; draw_winner takes the secret and the list fingerprint; the four
_wait_for_next_block scheduler tests are replaced by _wait_for_draw_block ones (fixed height,
confirmations, same-height retry, stall clock). New: test_draw_proof.py recomputes the winner
independently from the public proof, checks the plaintext secret is nowhere in the database,
the API or the log before the reveal, and that a second pass over a `drawing` round yields
the same winner. Mutation-checked: ordering by broadcast_at, an early reveal and asking the
tip instead of the draw height each fail tests.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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davideandClaude Sonnet 5.5
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50b68d2957 |
Follow and record chain reorganisations, pausing on deep ones (B-85, ELC-09, ELC-22, ELC-23, ELC-24, AUD-38, DAT-69)
A reorganisation was neither recorded nor acted upon, and a competing header at the tip's own height was ignored for as long as the tip stood, leaving the listener on an orphan. - A header at the height we hold with a different hash is followed through the same fork-point search as any other reorg (ELC-09) instead of being ignored; it still has to bring valid work and a connected chain. - ElectrumListener._record_reorg writes `chain_reorg_detected` (depth, fork height, old and new tip height and hash) before the window moves, so a failed write ends the session and the next server's announcement of the same fork is recorded then. Depth 1 is a transaction of its own; depth >= 2 also pauses the lottery with paused_reason 'reorg' and writes `lottery_paused` in the same transaction (begin_immediate first). - Docs: ELC-09/22/23/24, AUD-03/11/38, DAT-30/69, OPS-30, RND-04, ADR-26/52 lose their B-85 "da implementare" lines. Tests changed because the spec changed: test_apply_header_ignores_a_competing_header_at_ the_current_tip_height encoded the B-64 behaviour that ELC-09 now reverses; it is replaced by test_a_competing_header_at_the_tip_height_is_a_reorg_to_follow and the depth tests. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> |
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davideandClaude Sonnet 5.5
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ca50ef62f3 |
Require real proof of work in headers and link every advance to the tip (B-74, ELC-11, ELC-12, ELC-22, ELC-23)
A header only had to meet the target it declared for itself, so a fabricated one with `bits = 0x207fffff` passed half the time, a jump of several blocks was accepted without being linked to the tip (a fake header at a huge height locked `tip_height` and froze every draw), and an ordinary one-block reorganisation closed the session on every server. - draw.py: MAINNET_POW_LIMIT (00000000ffff...ffff); header_meets_its_own_target also refuses a claimed target easier than POW_LIMIT. - ElectrumListener._apply_header is async and takes the active client. A single block must chain by prev_hash; a jump downloads the headers in between (blockchain.block.headers, at most 2016 per request, ElectrumClient.get_block_headers) and each must carry valid work and chain, otherwise HeaderValidationError ends the session. - The listener keeps the last 10 headers (`_window`), built from the process's first header and its 9 predecessors (which must chain into it). A header that does not join the tip is walked back to its fork point inside the window and the server's branch is followed instead of ending the session; a fork older than the window, or a branch that does not end at the announced header, still ends it. The audit row and the pause for deep reorgs are B-85; a competing header at the tip's own height is still ignored until then. - _header_at also serves older heights from the window. Tests changed because the spec changed: the mainnet powLimit cannot be mined in a test, so tests/unit/conftest.py swaps in a regtest limit at import time (the new tests put the real one back); the _apply_header tests are async; the two _run_once tests serve the first header's 9 predecessors; test_apply_header_skips_linkage_check_across_a_height_gap is replaced by the jump tests, since that behaviour is exactly what the finding removed. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> |
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davideandClaude Sonnet 5.5
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13cb66cc06 |
Require a real Electrum quorum and allow certificate pinning (B-84, ELC-01, ELC-03, ELC-14, ELC-19, ARC-20, OPS-12)
An empty ELECTRUM_FALLBACK_SERVERS (the .env.example default) silently made every corroboration pass, and with fallbacks the majority was taken over whoever answered, so one reachable fallback decided alone. TLS certificates were never checked. - _corroborate_majority passes only with at least 2 answers (MIN_QUORUM_RESPONSES) and a strict majority of the answers; no other server configured, or fewer than 2 answering, fails. ALLOW_NO_QUORUM=true keeps the old reduced rule. - config.validate_quorum_servers, called from the lifespan after parse_endpoints, refuses to start with fewer than 2 fallback servers unless ALLOW_NO_QUORUM=true (which logs a warning at every start). - Optional pinning: `host:port[:mode]:pin=<sha256>` per fallback and ELECTRUM_CERT_PIN for the primary; ElectrumClient compares the SHA-256 of the DER certificate after the TLS handshake and a mismatch fails like an unreachable server. A pin on a plaintext entry is a startup error. - .env.example now ships the four bootstrap servers and documents both new variables; docs/setup.md, spec, storico and BUGS.md updated. - Tests changed because the spec changed: the two "no other servers configured -> True" corroboration tests now assert that outcome only under allow_no_quorum. Note: a dev .env with fewer than 2 fallback servers will now refuse to start. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> |
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davideandClaude Sonnet 5.5
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fd6a91e93d |
Give every round its own pool address (B-80, RND-35, DAT-60, DAT-11, REG-14, SEC-08, BET-12, RND-22, WDR-14, SEC-43, API-23, API-36)
All bets of all rounds paid one address (m/84'/746'/0'/1/0), so its history grew forever, other rounds' money and stray coins mixed with a round's own, and the payout picked from everything it held. - hd.py: derive_pool_key/derive_pool_address(round_id) on branch 2 (m/84'/746'/0'/2/<round_id>); no argument is the reserve address 1/0. derive_round_pool_key checks the key against the address stored on the round, so a payout can never be signed for money its key does not control. - rounds.pool_address (migration 477bddae1a84, existing rounds backfilled with the reserve address since that is where their bets went; add_column, not a batch alter, so the expression indexes stay): written in the transaction that inserts the round, once its id exists. - place_bet pays round.pool_address; the payout reads, signs and takes change at the round's own address; own_address_for and bump_fee's _signing_context follow the round (confirmation poller and reconciler pass round_id). - Withdrawals to any round pool address, the reserve address or fee_address are refused (withdrawal_to_platform_address, 400, all seven languages). - GET /rounds/current and GET /admin/rounds expose pool_address. - RND-22/DAT-11 stay "da implementare" for B-82: the payout still spends every confirmed coin at the round's address, not only the participants' outpoints (participants carry no bet_vout yet). - tests/unit/conftest.py: every test now gets a throwaway master key. Opening a round derives an address, and tests that merely opened a round were silently reading the real key from the local .env. - Existing tests changed because the spec changed: payout fixtures give their round a pool_address; the reconciler's address-cache test uses two payouts of one round (rows of different rounds no longer share an address); own_address_for now takes the round id. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> |
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davideandClaude Sonnet 5.5
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b424f670c5 |
Restructure docs: docs-first, SSOT, one ADR per decision
- Add docs/README.md as the index of all documentation. - Split the 52 DEC entries of decisioni-e-limiti.md into docs/adr/ADR-NN files (same numbers), add ADR-53 (audit log), TEMPLATE.md and an ADR index with a feature -> ADR table. - Rename decisioni-e-limiti.md to limiti-noti.md (LIM only) and rewrite all DEC-nn references as links to the ADRs. - Document the docs-first / SSOT / ADR rules in processo-di-modifica.md and map the docs in CLAUDE.md and README.md. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> |
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davideandClaude Sonnet 5.5
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7ba8e22bb4 |
Real SQLite transactions: BEGIN IMMEDIATE and synchronous=FULL (B-88, DAT-74, DAT-52, ARC-07, TX-28, BET-11, DAT-16)
pysqlite's legacy mode emitted BEGIN only at the first DML, so every read before it ran outside any transaction and a lock wait surfaced as "database is locked" at an arbitrary later statement; place_bet also mistook that error for a write-snapshot conflict, which SQLite cannot produce. - _register_sqlite_pragmas: synchronous=FULL, isolation_level=None and a `begin` event that emits BEGIN / BEGIN IMMEDIATE. - begin_immediate(session): takes the write lock before the first read; called first thing in place_bet, request_withdrawal, the scheduler transitions, _trigger_payout, the confirmation poller, the reconciler, bump_fee's persist phase, deposit crediting / external-spend marking / reinstating, and the derivation-index allocation at registration. - A lock not granted before a broadcast answers service_busy (503, all seven languages), nothing built or sent; after a broadcast nothing is undone, the rows stay `building` for the reconciler. - Spec, storico, BUGS.md and CLAUDE.md updated; 37 new tests on a real file DB. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> |
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davideandClaude Opus 5.5
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4be58709d1 |
Complete the target spec for the 2026-09-28 review (B-73..B-98)
Finishes what
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davideandClaude Opus 5.5
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61efbb0e37 |
Replace flowchart/ with a traceable specification in docs/
The two Mermaid diagrams under flowchart/ described the intended flow but had drifted from the code and carried no link back to it. docs/ now holds the specification instead: 15 Italian documents (flows, architecture, data model, API, security, audit log, operations, decisions and limits, bug history) with 472 numbered requirements, each pointing at the function that implements it and the test that covers it. docs/processo-di-modifica.md defines the ID convention and the spec -> code -> test change workflow, and CLAUDE.md now names docs/ as authoritative. Writing the spec from the code also corrected stale claims in CLAUDE.md (B-41's get_history check, BUGS.md still tracking B-71/B-72, Cache-Control scope, the error contract's bare-string exceptions) and in the operator guides (payouts do retry, only `drawing` fails to resume, rounds do not open without fee_address). The B-70 doc test now pins the prose in docs/scommesse-e-prelievi.md instead of the deleted diagram. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> |