Struct ProxyError 

pub struct ProxyError { /* private fields */ }

A request failed because the proxy failed, not the evonode: the proxy is unreachable, broke the SOCKS5 protocol, refused the credentials, or answered with a general failure or an unsupported command. It is carried in the source chain of the transport error; see TransportError::is_proxy_failure.

Such a failure is not retried and does not ban the evonode: every endpoint shares the proxy. That includes a general failure, which Tor also sends when a single circuit fails; the request fails at once rather than being retried on another node without a ban, and the next request (with Socks5Auth::RandomPerConnection, on a fresh circuit) tries again.

A reply about the destination (unreachable, refused, TTL expired, not allowed by the proxy’s rules, address type not supported) produces an ordinary, retryable connection error instead, as does the connect timeout once the proxy has completed the SOCKS5 negotiation (the CONNECT reply is pending): a proxy that holds its reply while it builds the route (Tor does while bootstrapping) cannot be told apart from a slow node, and Dash Core counts it against the peer too. A proxy that does not accept the TCP connection, or does not finish the SOCKS5 negotiation (method selection and any authentication), within five seconds or the connect budget, whichever is shorter, is the proxy’s failure: that is a proxy that is stuck (a suspended Tor), not a route being built.

Trait Implementations

impl Debug for ProxyError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ProxyError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for ProxyError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.