Enum LicenseError 

pub enum LicenseError {
    Io(Error),
    MalformedJwt(String),
    BadHeader(String),
    BadPayload(String),
    BadSignature,
    Truncated {
        actual: usize,
    },
    ClockSkew {
        iat_seconds: i64,
        now_seconds: i64,
        tolerance_seconds: i64,
    },
}

Errors returned by load_and_verify when the license material is present but malformed (vs simply missing, which is reported via LicenseStatus::Missing).

Variants

Io(Error)

I/O error reading the license file.

MalformedJwt(String)

JWT structure was not three base64url-encoded segments.

BadHeader(String)

Header could not be parsed as JSON or had wrong alg.

BadPayload(String)

Payload could not be parsed as LicenseClaims.

BadSignature

Signature verification failed.

Truncated

JWT length looks truncated (typical valid range 700-1500 chars).

Fields

actual: usize

ClockSkew

The license JWT’s iat claim is more than the configured tolerance in the future relative to the local clock. Mathematically equivalent to “the local clock is more than the tolerance behind the license issue time”; the two interpretations are the same condition.

Tolerance is applied only to iat, not to exp. The existing grace ladder (7 / 30 / hard-fail) absorbs sub-day exp skew. This is a deliberate asymmetry; revisit if a real incident shows otherwise.

Fields

iat_seconds: i64

JWT iat claim (unix seconds).

now_seconds: i64

Local clock at verification time (unix seconds).

tolerance_seconds: i64

Tolerance window applied (seconds).

Trait Implementations

impl Debug for LicenseError

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

Formats the value using the given formatter.

impl Display for LicenseError

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

Formats the value using the given formatter.

impl Error for LicenseError

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<Error> for LicenseError

fn from(err: Error) -> Self

Converts to this type from the input type.