[][src]Enum hyper::header::ByteRangeSpec

pub enum ByteRangeSpec {
    FromTo(u64u64),
    AllFrom(u64),
    Last(u64),
}

Each Range::Bytes header can contain one or more ByteRangeSpecs. Each ByteRangeSpec defines a range of bytes to fetch

Variants

FromTo(u64u64)

Get all bytes between x and y ("x-y")

AllFrom(u64)

Get all bytes starting from x ("x-")

Last(u64)

Get last x bytes ("-x")

Methods

impl ByteRangeSpec[src]

pub fn to_satisfiable_range(&self, full_length: u64) -> Option<(u64, u64)>[src]

Given the full length of the entity, attempt to normalize the byte range into an satisfiable end-inclusive (from, to) range.

The resulting range is guaranteed to be a satisfiable range within the bounds of 0 <= from <= to < full_length.

If the byte range is deemed unsatisfiable, None is returned. An unsatisfiable range is generally cause for a server to either reject the client request with a 416 Range Not Satisfiable status code, or to simply ignore the range header and serve the full entity using a 200 OK status code.

This function closely follows RFC 7233 section 2.1. As such, it considers ranges to be satisfiable if they meet the following conditions:

If a valid byte-range-set includes at least one byte-range-spec with a first-byte-pos that is less than the current length of the representation, or at least one suffix-byte-range-spec with a non-zero suffix-length, then the byte-range-set is satisfiable. Otherwise, the byte-range-set is unsatisfiable.

The function also computes remainder ranges based on the RFC:

If the last-byte-pos value is absent, or if the value is greater than or equal to the current length of the representation data, the byte range is interpreted as the remainder of the representation (i.e., the server replaces the value of last-byte-pos with a value that is one less than the current length of the selected representation).

Trait Implementations

impl Clone for ByteRangeSpec[src]

impl Debug for ByteRangeSpec[src]

impl Display for ByteRangeSpec[src]

impl FromStr for ByteRangeSpec[src]

type Err = Error

The associated error which can be returned from parsing.

impl PartialEq<ByteRangeSpec> for ByteRangeSpec[src]

impl StructuralPartialEq for ByteRangeSpec[src]

Auto Trait Implementations

impl RefUnwindSafe for ByteRangeSpec

impl Send for ByteRangeSpec

impl Sync for ByteRangeSpec

impl Unpin for ByteRangeSpec

impl UnwindSafe for ByteRangeSpec

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized
[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.