Jędrzej Stuczyński
107 lines
3.2 KiB
Rust
107 lines
3.2 KiB
Rust
// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
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// SPDX-License-Identifier: Apache-2.0
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#[cfg(target_arch = "wasm32")]
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use crate::wasm_storage::StorageError;
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#[cfg(not(target_arch = "wasm32"))]
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use credential_storage::error::StorageError;
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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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#[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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#[error("There was a credential storage error - {0}")]
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CredentialStorageError(#[from] StorageError),
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#[cfg(feature = "coconut")]
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#[error("Coconut error - {0}")]
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CoconutError(#[from] coconut_interface::CoconutError),
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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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#[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("Connection was abruptly closed as gateway was stopped")]
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ConnectionClosedGatewayShutdown,
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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("There are no more bandwidth credentials acquired. Please buy some more if you want to use the mixnet")]
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NoMoreBandwidthCredentials,
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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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#[error("Failed to send mixnet message")]
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MixnetMsgSenderFailedToSend,
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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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