Enum StateError 

pub enum StateError {
    Missing,
    Invalid,
    Expired,
}

Why a callback was refused.

Three variants rather than one boolean because the words shown to a visitor differ: an expired flow should offer the button again, a mismatched one should not pretend anything is recoverable.

Variants

Missing

No state came back, or none was pending — including the case where one was pending and has already been spent.

Invalid

A state came back that this application did not issue, or that was edited on the way.

Expired

Ours, unedited, and too old.

Implementations

impl StateError

pub fn message(self) -> &'static str

Trait Implementations

impl Clone for StateError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for StateError

impl Debug for StateError

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

Formats the value using the given formatter.

impl Display for StateError

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

Formats the value using the given formatter.

impl Eq for StateError

impl Error for StateError

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<StateError> for OAuthError

Every state failure is invalid_request: the callback was malformed as a request, whatever the reason, and saying which reason to the provider would be describing our own defence to whoever tripped it.

fn from(error: StateError) -> OAuthError

Converts to this type from the input type.

impl PartialEq for StateError

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for StateError