Struct rocket::config::Ident

pub struct Ident(_);

An identifier (or None) to send as the Server header.

Deserialization

An Ident deserializes from any of the following:

• string

  The string must be a valid Ident. See Ident::try_new() for details.

• boolean

  The boolean must be false. The value will be Ident::none().

• Option<string>

  If Some, this is the same as deserializing from the inner string. If None, the value is Ident::none().

• unit

  Always deserializes as Ident::none().

Examples

As with all Rocket configuration options, when using the default Config::figment(), Ident can be configured via a Rocket.toml file. When no value for ident is provided, the value defaults to "Rocket". Because a default is provided, configuration only needs to provided to customize or remove the value.

use rocket::config::{Config, Ident};

// If these are the contents of `Rocket.toml`...
[default]
ident = false

// The config parses as follows:
assert_eq!(config.ident, Ident::none());

// If these are the contents of `Rocket.toml`...
[default]
ident = "My Server"

// The config parses as follows:
assert_eq!(config.ident, Ident::try_new("My Server").unwrap());

The following example illustrates manual configuration:

use rocket::config::{Config, Ident};

let figment = rocket::Config::figment().merge(("ident", false));
let config = rocket::Config::from(figment);
assert_eq!(config.ident, Ident::none());

let figment = rocket::Config::figment().merge(("ident", "Fancy/1.0"));
let config = rocket::Config::from(figment);
assert_eq!(config.ident, Ident::try_new("Fancy/1.0").unwrap());

Implementations

impl Ident

pub fn try_new<S: Into<String>>(ident: S) -> Result<Ident, String>

Returns a new Ident with the string ident.

When configured as the Config::ident, Rocket will set a Server header with the ident value on all responses.

Errors

The string ident must be non-empty and may only contain visible ASCII characters. The first character cannot be whitespace. The only whitespace characters allowed are (space) and \t (horizontal tab). The string is returned wrapped in Err if it contains any invalid characters.

Example

use rocket::config::Ident;

let ident = Ident::try_new("Rocket").unwrap();
assert_eq!(ident.as_str(), Some("Rocket"));

let ident = Ident::try_new("Rocket Run").unwrap();
assert_eq!(ident.as_str(), Some("Rocket Run"));

let ident = Ident::try_new(" Rocket");
assert!(ident.is_err());

let ident = Ident::try_new("Rocket\nRun");
assert!(ident.is_err());

let ident = Ident::try_new("\tShip");
assert!(ident.is_err());

pub const fn none() -> Ident

Returns a new Ident which is None.

When configured as the Config::ident, Rocket will not set a Server header on any response. Any Server header emitted by the application will still be written out.

Example

use rocket::config::Ident;

let ident = Ident::none();
assert_eq!(ident.as_str(), None);

pub fn as_str(&self) -> Option<&str>

Returns self as an Option<&str>.

Example

use rocket::config::Ident;

let ident = Ident::try_new("Rocket").unwrap();
assert_eq!(ident.as_str(), Some("Rocket"));

let ident = Ident::try_new("Rocket/1 (Unix)").unwrap();
assert_eq!(ident.as_str(), Some("Rocket/1 (Unix)"));

let ident = Ident::none();
assert_eq!(ident.as_str(), None);

Trait Implementations

impl Clone for Ident

fn clone(&self) -> Ident

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Ident

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

Formats the value using the given formatter.

impl Default for Ident

The default Ident is "Rocket".

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Ident

fn deserialize<D: Deserializer<'de>>(de: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Display for Ident

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

Formats the value using the given formatter.

impl PartialEq<Ident> for Ident

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Serialize for Ident

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Ident