Enum actix_web::http::header::Range

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pub enum Range {
    Bytes(Vec<ByteRangeSpec>),
    Unregistered(String, String),
}
Expand description

Range header, defined in RFC 7233 §3.1

The “Range” header field on a GET request modifies the method semantics to request transfer of only one or more sub-ranges of the selected representation data, rather than the entire selected representation data.

ABNF

Range = byte-ranges-specifier / other-ranges-specifier
other-ranges-specifier = other-range-unit "=" other-range-set
other-range-set = 1*VCHAR

bytes-unit = "bytes"

byte-ranges-specifier = bytes-unit "=" byte-range-set
byte-range-set = 1#(byte-range-spec / suffix-byte-range-spec)
byte-range-spec = first-byte-pos "-" [last-byte-pos]
suffix-byte-range-spec = "-" suffix-length
suffix-length = 1*DIGIT
first-byte-pos = 1*DIGIT
last-byte-pos = 1*DIGIT

Example Values

  • bytes=1000-
  • bytes=-50
  • bytes=0-1,30-40
  • bytes=0-10,20-90,-100
  • custom_unit=0-123
  • custom_unit=xxx-yyy

Examples

use actix_web::http::header::{Range, ByteRangeSpec};
use actix_web::HttpResponse;

let mut builder = HttpResponse::Ok();
builder.insert_header(Range::Bytes(
    vec![ByteRangeSpec::FromTo(1, 100), ByteRangeSpec::From(200)]
));
builder.insert_header(Range::Unregistered("letters".to_owned(), "a-f".to_owned()));
builder.insert_header(Range::bytes(1, 100));
builder.insert_header(Range::bytes_multi(vec![(1, 100), (200, 300)]));

Variants§

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Bytes(Vec<ByteRangeSpec>)

Byte range.

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Unregistered(String, String)

Custom range, with unit not registered at IANA.

(other-range-unit: String , other-range-set: String)

Implementations§

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impl Range

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pub fn bytes(from: u64, to: u64) -> Range

Constructs a common byte range header.

Eg: bytes=from-to

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pub fn bytes_multi(ranges: Vec<(u64, u64)>) -> Range

Constructs a byte range header with multiple subranges.

Eg: bytes=from1-to1,from2-to2,fromX-toX

Trait Implementations§

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impl Clone for Range

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fn clone(&self) -> Range

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Range

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

Formats the value using the given formatter. Read more
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impl Display for Range

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

Formats the value using the given formatter. Read more
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impl FromStr for Range

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type Err = ParseError

The associated error which can be returned from parsing.
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fn from_str(s: &str) -> Result<Range, ParseError>

Parses a string s to return a value of this type. Read more
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impl Header for Range

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fn name() -> HeaderName

Returns the name of the header field.
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fn parse<T: HttpMessage>(msg: &T) -> Result<Self, ParseError>

Parse the header from a HTTP message.
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impl PartialEq<Range> for Range

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl TryIntoHeaderValue for Range

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type Error = InvalidHeaderValue

The type returned in the event of a conversion error.
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fn try_into_value(self) -> Result<HeaderValue, Self::Error>

Try to convert value to a HeaderValue.
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impl Eq for Range

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impl StructuralEq for Range

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impl StructuralPartialEq for Range

Auto Trait Implementations§

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impl RefUnwindSafe for Range

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impl Send for Range

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impl Sync for Range

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impl Unpin for Range

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impl UnwindSafe for Range

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same<T> for T

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type Output = T

Should always be Self
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for Twhere T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> TryIntoHeaderPair for Twhere T: Header,

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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more