andodeki
fefde1ecca
Three changes that turn out to be one change: the app now uses the platform's own facilities instead of carrying its own. Networking moves to Cx::http_request, alerting moves into the UI, and deserialisation moves to makepad_micro_serde. The default dependency graph drops from serde + serde_derive + serde_json + toml + reqwest + rustls + tokio + hyper to **twenty-five crates total**, none of which is any of those. Networking follows nigig-mpesa/src/pages/exchange/api.rs: build an HttpRequest, hand it to Cx::http_request keyed by a LiveId, match the reply in handle_network_responses. There is no HTTP client, no TLS stack and no async runtime in this workspace any more. That is not only leanness -- on Android and iOS the platform stack is the only one that works without shipping a second TLS implementation, so the `live` feature that gated reqwest has been deleted rather than made default. Correlating replies is where the real trap was. A scan of five markets puts ten requests in flight and the replies come back in whatever order the network gives them, so the LiveId has to say which market and which side. RequestKey encodes both plus a generation counter and round-trips through a u64 with the high bit set, so a LiveId Makepad derived from a name is never decoded as a scan reply, and a late reply from a previous round is dropped instead of folded into fresh data. Six tests cover the codec, including the one that matters most: the two sides of one market must not share an id, or the second reply overwrites the first and every spread is measured against itself. The transport allowlist is lifted from the nigig-mpesa review, which reached the same conclusion I would have: Makepad exposes no certificate pinning -- its only TLS control is set_ignore_ssl_cert, which weakens verification -- so what is enforceable at this layer is that only HTTPS to p2p.binance.com can be dialled at all. The tests cover the two ways a naive check leaks: the lookalike host p2p.binance.com.evil.example, which passes any starts_with test, and the userinfo smuggle https://p2p.binance.com@evil.example/, which resolves to evil.example while reading as Binance. Telegram is gone, as asked, and the app alerts itself: a banner, an unread badge on the status line, an Alerts tab holding the history, and a chime. Removing it removes a bot token from the threat model entirely -- a token in a config file is a bot anyone who reads the file can drive -- and removes a second network dependency from a tool already gated on one endpoint. One test now records the *absence* of a bug rather than its fix: Twin_traders00 is a real merchant from the live capture, and its underscore previously had to be escaped or Telegram rejected the whole message with a 400 and delivered nothing. Rendering in our own UI deletes that failure mode, and the test asserts the name appears unescaped. The trade-off is stated in the README rather than glossed: an in-app alert only reaches you while the app is running. No OS notification is raised, so a minimised window is a missed alert. The chime is synthesised rather than bundled -- a two-note rising blip generated at the device's sample rate, which is a few dozen lines instead of an audio asset shipped on three platforms, and which can therefore be tested. It is, and the tests found the bugs you would expect from writing audio: a freshly rendered chime starts *finished* so opening the output does not announce itself at startup, both note edges fade so neither clicks, the tail pads with silence rather than replaying whatever the buffer last held, and a nonsense sample rate falls back instead of panicking. Rising rather than falling because a falling interval reads as a dismissal and this is an invitation to act. The micro_serde migration surfaced two behaviours that differ from serde and both bit before they were understood. **micro_serde is strict by default.** deserialize_json errors on the first key it does not model. Binance sends about forty fields per advert and we model eight, so the strict parser cannot read the response at all -- and for a config file it means an older build cannot open a file written by a newer one. Everything uses deserialize_json_lenient, and a test pins that the strict call *would* have failed, because the two differ by one word and the strict one looks more correct. **There is no #[serde(default)].** Optional config entries are modelled as Option<T> on a Raw* struct and resolved into the real Config by hand. A few more lines in exchange for two fewer dependency trees. config.toml became config.json for the same arithmetic: micro_serde has no TOML reader, and toml depends on serde, so a single config file would have dragged all of serde back in through the back door. Also worth recording: DeJsonErr implements Debug but not Display, and Debug is the variant carrying line and column, so every error path formats it with {e:?} deliberately rather than by accident. CI gains a check that fails the build if reqwest, tokio, rustls, hyper, serde, serde_derive, serde_json or toml reappears in the default graph. I verified it fails by adding serde back to p2p-core and watching it match serde_derive, then reverted. A gate that cannot fail is decoration. 136 tests in the default feature set and 36 more with --features ui, including the RequestKey codec, which cannot be measured by the coverage job because it lives behind the feature that needs Makepad. Coverage 96.92% with ten per-file floors, up from eight -- chime.rs at 100% and client.rs at 95.69% are new. The desktop binary was built and linked to prove the app half is real.
17 lines
545 B
JSON
17 lines
545 B
JSON
{
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"_comment": "p2p-intel configuration. JSON rather than TOML because the stack deserialises with makepad_micro_serde, which has no TOML reader; keeping TOML would drag all of serde back in for one file. Unknown keys (like this one) are ignored.",
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"alert_threshold_bps": 150,
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"cost_bps": 30,
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"poll_interval_seconds": 30,
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"quality": {
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"min_finish_rate_bps": 9500,
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"min_order_count": 50
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},
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"markets": [
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{ "fiat": "KES", "asset": "USDT", "pay_types": [] },
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{ "fiat": "NGN", "asset": "USDT", "pay_types": [] }
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]
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}
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