Enum Uri

pub enum Uri<'a> {
    Origin(Origin<'a>),
    Authority(Authority<'a>),
    Absolute(Absolute<'a>),
    Asterisk,
}

An enum encapsulating any of the possible URI variants.

Usage

In Rocket, this type will rarely be used directly. Instead, you will typically encounter URIs via the Origin type. This is because all incoming requests contain origin-type URIs.

Nevertheless, the Uri type is typically enountered as a conversion target. In particular, you will likely see generic bounds of the form: T: TryInto<Uri> (for instance, in Redirect methods). This means that you can provide any type T that implements TryInto<Uri>, or, equivalently, any type U for which Uri implements TryFrom<U> or From<U>. These include &str and String, Origin, Authority, and Absolute.

Parsing

The Uri type implements a full, zero-allocation, zero-copy RFC 7230 compliant parser. To parse an &str into a Uri, use the Uri::parse() method. Alternatively, you may also use the TryFrom<&str> and TryFrom<String> trait implementation. To inspect the parsed type, match on the resulting enum and use the methods of the internal structure.

Percent Encoding/Decoding

This type also provides the following percent encoding/decoding helper methods: Uri::percent_encode(), Uri::percent_decode(), and Uri::percent_decode_lossy().

Variants

Origin(Origin<'a>)

An origin URI.

Authority(Authority<'a>)

An authority URI.

Absolute(Absolute<'a>)

An absolute URI.

Asterisk

An asterisk: exactly *.

Implementations

impl<'a> Uri<'a>

pub fn parse(string: &'a str) -> Result<Uri<'a>, Error<'a>>

Parses the string string into a Uri. Parsing will never allocate. Returns an Error if string is not a valid URI.

Example

use rocket::http::uri::Uri;

// Parse a valid origin URI (note: in practice, use `Origin::parse()`).
let uri = Uri::parse("/a/b/c?query").expect("valid URI");
let origin = uri.origin().expect("origin URI");
assert_eq!(origin.path(), "/a/b/c");
assert_eq!(origin.query(), Some("query"));

// Invalid URIs fail to parse.
Uri::parse("foo bar").expect_err("invalid URI");

pub fn origin(&self) -> Option<&Origin<'a>>

Returns the internal instance of Origin if self is a Uri::Origin. Otherwise, returns None.

Example

use rocket::http::uri::Uri;

let uri = Uri::parse("/a/b/c?query").expect("valid URI");
assert!(uri.origin().is_some());

let uri = Uri::parse("http://google.com").expect("valid URI");
assert!(uri.origin().is_none());

pub fn authority(&self) -> Option<&Authority<'a>>

Returns the internal instance of Authority if self is a Uri::Authority. Otherwise, returns None.

Example

use rocket::http::uri::Uri;

let uri = Uri::parse("user:pass@domain.com").expect("valid URI");
assert!(uri.authority().is_some());

let uri = Uri::parse("http://google.com").expect("valid URI");
assert!(uri.authority().is_none());

pub fn absolute(&self) -> Option<&Absolute<'a>>

Returns the internal instance of Absolute if self is a Uri::Absolute. Otherwise, returns None.

Example

use rocket::http::uri::Uri;

let uri = Uri::parse("http://google.com").expect("valid URI");
assert!(uri.absolute().is_some());

let uri = Uri::parse("/path").expect("valid URI");
assert!(uri.absolute().is_none());

pub fn percent_encode(string: &str) -> Cow<'_, str>

Returns a URL-encoded version of the string. Any reserved characters are percent-encoded.

Examples

use rocket::http::uri::Uri;

let encoded = Uri::percent_encode("hello?a=<b>hi</b>");
assert_eq!(encoded, "hello%3Fa%3D%3Cb%3Ehi%3C%2Fb%3E");

pub fn percent_decode(string: &[u8]) -> Result<Cow<'_, str>, Utf8Error>

Returns a URL-decoded version of the string. If the percent encoded values are not valid UTF-8, an Err is returned.

Examples

use rocket::http::uri::Uri;

let decoded = Uri::percent_decode("/Hello%2C%20world%21".as_bytes());
assert_eq!(decoded.unwrap(), "/Hello, world!");

pub fn percent_decode_lossy(string: &[u8]) -> Cow<'_, str>

Returns a URL-decoded version of the path. Any invalid UTF-8 percent-encoded byte sequences will be replaced � U+FFFD, the replacement character.

Examples

use rocket::http::uri::Uri;

let decoded = Uri::percent_decode_lossy("/Hello%2C%20world%21".as_bytes());
assert_eq!(decoded, "/Hello, world!");

Trait Implementations

impl<'a> Clone for Uri<'a>

fn clone(&self) -> Uri<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Uri<'a>

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

Formats the value using the given formatter.

impl<'a> Display for Uri<'a>

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

Formats the value using the given formatter.

impl<'a> From<Absolute<'a>> for Uri<'a>

fn from(other: Absolute<'a>) -> Uri<'a>

Converts to this type from the input type.

impl<'a> From<Authority<'a>> for Uri<'a>

fn from(other: Authority<'a>) -> Uri<'a>

Converts to this type from the input type.

impl<'a> From<Origin<'a>> for Uri<'a>

fn from(other: Origin<'a>) -> Uri<'a>

Converts to this type from the input type.

impl<'a> IntoOwned for Uri<'a>

type Owned = Uri<'static>

The owned version of the type.

fn into_owned(self) -> Uri<'static>

Converts self into an owned version of itself.

impl<'a> PartialEq for Uri<'a>

fn eq(&self, other: &Uri<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> TryFrom<&'a str> for Uri<'a>

type Error = Error<'a>

The type returned in the event of a conversion error.

fn try_from( string: &'a str, ) -> Result<Uri<'a>, <Uri<'a> as TryFrom<&'a str>>::Error>

Performs the conversion.

impl TryFrom<String> for Uri<'static>

type Error = Error<'static>

The type returned in the event of a conversion error.

fn try_from( string: String, ) -> Result<Uri<'static>, <Uri<'static> as TryFrom<String>>::Error>

Performs the conversion.

impl<'a> StructuralPartialEq for Uri<'a>