Enum ErrorCode

pub enum ErrorCode {
    DnsTimeout,
    DnsError(DnsErrorPayload),
    DestinationNotFound,
    DestinationUnavailable,
    DestinationIpProhibited,
    DestinationIpUnroutable,
    ConnectionRefused,
    ConnectionTerminated,
    ConnectionTimeout,
    ConnectionReadTimeout,
    ConnectionWriteTimeout,
    ConnectionLimitReached,
    TlsProtocolError,
    TlsCertificateError,
    TlsAlertReceived(TlsAlertReceivedPayload),
    HttpRequestDenied,
    HttpRequestLengthRequired,
    HttpRequestBodySize(Option<u64>),
    HttpRequestMethodInvalid,
    HttpRequestUriInvalid,
    HttpRequestUriTooLong,
    HttpRequestHeaderSectionSize(Option<u32>),
    HttpRequestHeaderSize(Option<FieldSizePayload>),
    HttpRequestTrailerSectionSize(Option<u32>),
    HttpRequestTrailerSize(FieldSizePayload),
    HttpResponseIncomplete,
    HttpResponseHeaderSectionSize(Option<u32>),
    HttpResponseHeaderSize(FieldSizePayload),
    HttpResponseBodySize(Option<u64>),
    HttpResponseTrailerSectionSize(Option<u32>),
    HttpResponseTrailerSize(FieldSizePayload),
    HttpResponseTransferCoding(Option<String>),
    HttpResponseContentCoding(Option<String>),
    HttpResponseTimeout,
    HttpUpgradeFailed,
    HttpProtocolError,
    LoopDetected,
    ConfigurationError,
    InternalError(Option<String>),
}

These cases are inspired by the IANA HTTP Proxy Error Types: https://www.iana.org/assignments/http-proxy-status/http-proxy-status.xhtml#table-http-proxy-error-types

Variants

DnsTimeout

DnsError(DnsErrorPayload)

DestinationNotFound

DestinationUnavailable

DestinationIpProhibited

DestinationIpUnroutable

ConnectionRefused

ConnectionTerminated

ConnectionTimeout

ConnectionReadTimeout

ConnectionWriteTimeout

ConnectionLimitReached

TlsProtocolError

TlsCertificateError

TlsAlertReceived(TlsAlertReceivedPayload)

HttpRequestDenied

HttpRequestLengthRequired

HttpRequestBodySize(Option<u64>)

HttpRequestMethodInvalid

HttpRequestUriInvalid

HttpRequestUriTooLong

HttpRequestHeaderSectionSize(Option<u32>)

HttpRequestHeaderSize(Option<FieldSizePayload>)

HttpRequestTrailerSectionSize(Option<u32>)

HttpRequestTrailerSize(FieldSizePayload)

HttpResponseIncomplete

HttpResponseHeaderSectionSize(Option<u32>)

HttpResponseHeaderSize(FieldSizePayload)

HttpResponseBodySize(Option<u64>)

HttpResponseTrailerSectionSize(Option<u32>)

HttpResponseTrailerSize(FieldSizePayload)

HttpResponseTransferCoding(Option<String>)

HttpResponseContentCoding(Option<String>)

HttpResponseTimeout

HttpUpgradeFailed

HttpProtocolError

LoopDetected

ConfigurationError

InternalError(Option<String>)

This is a catch-all error for anything that doesn’t fit cleanly into a more specific case. It also includes an optional string for an unstructured description of the error. Users should not depend on the string for diagnosing errors, as it’s not required to be consistent between implementations.

Trait Implementations

impl Clone for ErrorCode

fn clone(&self) -> ErrorCode

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ErrorCode

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

Formats the value using the given formatter.

impl Display for ErrorCode

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

Formats the value using the given formatter.

impl Error for ErrorCode

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.