Bogdan-Ștefan Neacşu
10bf70b22b
* Remove check for bandwidth for incoming packets We should only accunt for packets that the client inputs to the mixnet * Introduce BandwidthController for both types of bandwidth creds * Add some non-coconut token bandwidth handling * Use thiserror for gateway-client lib * Add error handling * Unable to build for wasm for now * Fix wasm strange error * Disable non-coconut credentials for wasm client * Check for status and throw the error up * Send encrypted token cred from client * Gateway receive message and signature validation * Put the correct amount of tokens that were burned * [ci skip] Generate TS types * Eth endpoint and secret key as config parameters * Add eth_endpoint config argument for gateway * Update test as well * Separate panicable code from the safe one * Move some bandwidth controller panics up the call stack * Save contract corresponding to the eth endpoint * Fix template * Pass the web3 interface as well * Made event reads possible in gateway * Add checks for event data * Cosmos contract for double spending prevention * Add workflow for the new contract * Add validator rest URL to config * Rename eth_events to erc20_bridge * Pass cosmos mnemonic as well, and put the nymd client in ERC20Bridge * Call cosmos contract for final verification * Ask for config parameters in cli * Fix various stuff * Increase timeout to allow gateway to check the two chains * Put some logs for the new flow * Set consumed bandwidth invariantly of coconut feature * Fix clippy error * Add non-coconut checks * Use 2018 rust instead of 2021 * More verbose nymd error * Explicitly specify TOKENS_TO_BURN constant * Put eth burn function in a constant * Replace to_vec & append with iter & chain * Test for (de)serialization of TokenCredential * Minor rename * Separate credential creation from bandwidth claiming * Switch from panics to errors when claiming coconut bandwidth * Another append changed to chain * Update QA cosmos contract address * Simplify build/test/clippy separation on coconut feature * Fix bad features arg positioning * Use the start_after in cosmos contract query * Set a limit in line with a range on cosmos queries * Added unit tests for new cosmos contract * Fix bandwidth_remaining comparation * Get remaining bandwidth from gateway * Add contract build flag * Add a useful info log * Use a more robust eth depth for release builds * Include recipt logs in error message * Fix clippy for tests * Use Arc instead of clone * Rename as_bytes to to_bytes * Make signature verification in contract more verbose * Missed rename of paging constant * Fix gateway start with coconut enabled * Rename function to claim_token * Simplify nymd client setup * Check with block buffer on gateway as well * Update comment of double spending protection * Correct contract address * Backup the keypairs used for buying tokens, in case of error cases * Don't take any chances with the gateway timeout * [ci skip] Generate TS types * Updated cosmos contract to latest QA address * Add cli options for eth * Update network monitor timeout value as well Co-authored-by: neacsu <neacsu@users.noreply.github.com>
101 lines
2.9 KiB
Rust
101 lines
2.9 KiB
Rust
// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
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// SPDX-License-Identifier: Apache-2.0
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use gateway_requests::registration::handshake::error::HandshakeError;
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use std::io;
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use thiserror::Error;
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use tungstenite::Error as WsError;
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#[cfg(target_arch = "wasm32")]
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use wasm_bindgen::JsValue;
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#[cfg(not(feature = "coconut"))]
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use web3::Error as Web3Error;
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#[derive(Debug, Error)]
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pub enum GatewayClientError {
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#[error("Connection to the gateway is not established")]
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ConnectionNotEstablished,
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#[error("Gateway returned an error response - {0}")]
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GatewayError(String),
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#[error("There was a network error - {0}")]
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NetworkError(#[from] WsError),
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// TODO: see if `JsValue` is a reasonable type for this
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#[cfg(target_arch = "wasm32")]
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#[error("There was a network error")]
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NetworkErrorWasm(JsValue),
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#[cfg(not(feature = "coconut"))]
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#[error("Could not backup keypair - {0}")]
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IOError(#[from] std::io::Error),
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#[cfg(not(feature = "coconut"))]
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#[error("Could not burn ERC20 token in Ethereum smart contract - {0}")]
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BurnTokenError(#[from] Web3Error),
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#[cfg(not(feature = "coconut"))]
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#[error("Invalid Ethereum private key")]
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InvalidEthereumPrivateKey,
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#[error("Invalid URL - {0}")]
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InvalidURL(String),
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#[error("No shared key was provided or obtained")]
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NoSharedKeyAvailable,
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#[error("No bandwidth controller provided")]
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NoBandwidthControllerAvailable,
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#[error("Credential error - {0}")]
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CredentialError(#[from] credentials::error::Error),
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#[error("Connection was abruptly closed")]
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ConnectionAbruptlyClosed,
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#[error("Received response was malformed")]
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MalformedResponse,
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#[error("Credential could not be serialized")]
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SerializeCredential,
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#[error("Client is not authenticated")]
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NotAuthenticated,
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#[error("Client does not have enough bandwidth: estimated {0}, remaining: {1}")]
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NotEnoughBandwidth(i64, i64),
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#[error("Received an unexpected response")]
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UnexpectedResponse,
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#[error("Connection is in an invalid state - please send a bug report")]
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ConnectionInInvalidState,
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#[error("Failed to finish registration handshake - {0}")]
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RegistrationFailure(HandshakeError),
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#[error("Authentication failure")]
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AuthenticationFailure,
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#[error("Timed out")]
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Timeout,
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}
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impl GatewayClientError {
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pub fn is_closed_connection(&self) -> bool {
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match self {
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GatewayClientError::NetworkError(ws_err) => match ws_err {
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WsError::AlreadyClosed | WsError::ConnectionClosed => true,
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WsError::Io(io_err) => matches!(
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io_err.kind(),
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io::ErrorKind::ConnectionReset
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| io::ErrorKind::ConnectionAborted
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| io::ErrorKind::BrokenPipe
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),
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_ => false,
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},
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_ => false,
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}
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}
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}
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