Enum ExchangeError 

#[non_exhaustive]
pub enum ExchangeError {
    UnsupportedGrant(String),
    UnsupportedTokenType(String),
    SubjectInvalid(IdentityError),
    ScopeExceedsSubject(String),
    EmptyIntersection,
    SubjectExpired,
    MissingSubjectChain,
    InvalidScopes,
    SigningFailed(String),
    DelegationExceeded {
        depth: usize,
        max: usize,
    },
    TargetNotAllowed(String),
    ActorNotDirect,
}

Errors from the exchange process.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

UnsupportedGrant(String)

The grant_type is not the RFC 8693 token exchange URI.

UnsupportedTokenType(String)

The subject_token_type is not urn:ietf:params:oauth:token-type:jwt.

SubjectInvalid(IdentityError)

The inbound subject token failed identity validation.

ScopeExceedsSubject(String)

The requested scope is not a subset of the subject’s scopes.

EmptyIntersection

Scope intersection produced an empty set.

SubjectExpired

The subject has no remaining lifetime to delegate.

MissingSubjectChain

The caller failed to supply a verified source chain.

InvalidScopes

A scope request exceeds the supported count or field limits.

SigningFailed(String)

Token signing failed.

DelegationExceeded

The resulting delegation chain exceeds the maximum allowed depth.

Fields

depth: usize

The computed depth of the resulting chain.

max: usize

The configured maximum.

TargetNotAllowed(String)

The requested audience is not a configured backend name.

ActorNotDirect

The actor token is itself delegated; it must directly identify the acting agent.

Trait Implementations

impl Debug for ExchangeError

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

Formats the value using the given formatter.

impl Display for ExchangeError

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

Formats the value using the given formatter.

impl Error for ExchangeError

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.

impl From<IdentityError> for ExchangeError

fn from(source: IdentityError) -> Self

Converts to this type from the input type.