Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1422 insertions, 0 deletions

diff --git a/third_party/rust/cookie/src/lib.rs b/third_party/rust/cookie/src/lib.rs
new file mode 100644
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+++ b/third_party/rust/cookie/src/lib.rs
@@ -0,0 +1,1422 @@
+//! HTTP cookie parsing and cookie jar management.
+//!
+//! This crates provides the [`Cookie`] type, representing an HTTP cookie, and
+//! the [`CookieJar`] type, which manages a collection of cookies for session
+//! management, recording changes as they are made, and optional automatic
+//! cookie encryption and signing.
+//!
+//! # Usage
+//!
+//! Add the following to the `[dependencies]` section of your `Cargo.toml`:
+//!
+//! ```toml
+//! cookie = "0.16"
+//! ```
+//!
+//! # Features
+//!
+//! This crate exposes several features, all of which are disabled by default:
+//!
+//! * **`percent-encode`**
+//!
+//!   Enables _percent encoding and decoding_ of names and values in cookies.
+//!
+//!   When this feature is enabled, the [`Cookie::encoded()`] and
+//!   [`Cookie::parse_encoded()`] methods are available. The `encoded` method
+//!   returns a wrapper around a `Cookie` whose `Display` implementation
+//!   percent-encodes the name and value of the cookie. The `parse_encoded`
+//!   method percent-decodes the name and value of a `Cookie` during parsing.
+//!
+//! * **`signed`**
+//!
+//!   Enables _signed_ cookies via [`CookieJar::signed()`].
+//!
+//!   When this feature is enabled, the [`CookieJar::signed()`] method,
+//!   [`SignedJar`] type, and [`Key`] type are available. The jar acts as "child
+//!   jar"; operations on the jar automatically sign and verify cookies as they
+//!   are added and retrieved from the parent jar.
+//!
+//! * **`private`**
+//!
+//!   Enables _private_ (authenticated, encrypted) cookies via
+//!   [`CookieJar::private()`].
+//!
+//!   When this feature is enabled, the [`CookieJar::private()`] method,
+//!   [`PrivateJar`] type, and [`Key`] type are available. The jar acts as "child
+//!   jar"; operations on the jar automatically encrypt and decrypt/authenticate
+//!   cookies as they are added and retrieved from the parent jar.
+//!
+//! * **`key-expansion`**
+//!
+//!   Enables _key expansion_ or _key derivation_ via [`Key::derive_from()`].
+//!
+//!   When this feature is enabled, and either `signed` or `private` are _also_
+//!   enabled, the [`Key::derive_from()`] method is available. The method can be
+//!   used to derive a `Key` structure appropriate for use with signed and
+//!   private jars from cryptographically valid key material that is shorter in
+//!   length than the full key.
+//!
+//! * **`secure`**
+//!
+//!   A meta-feature that simultaneously enables `signed`, `private`, and
+//!   `key-expansion`.
+//!
+//! You can enable features via `Cargo.toml`:
+//!
+//! ```toml
+//! [dependencies.cookie]
+//! features = ["secure", "percent-encode"]
+//! ```
+
+#![cfg_attr(all(nightly, doc), feature(doc_cfg))]
+
+#![doc(html_root_url = "https://docs.rs/cookie/0.16")]
+#![deny(missing_docs)]
+
+pub use time;
+
+mod builder;
+mod parse;
+mod jar;
+mod delta;
+mod draft;
+mod expiration;
+
+#[cfg(any(feature = "private", feature = "signed"))] #[macro_use] mod secure;
+#[cfg(any(feature = "private", feature = "signed"))] pub use secure::*;
+
+use std::borrow::Cow;
+use std::fmt;
+use std::str::FromStr;
+
+#[allow(unused_imports, deprecated)]
+use std::ascii::AsciiExt;
+
+use time::{Duration, OffsetDateTime, UtcOffset, macros::datetime};
+
+use crate::parse::parse_cookie;
+pub use crate::parse::ParseError;
+pub use crate::builder::CookieBuilder;
+pub use crate::jar::{CookieJar, Delta, Iter};
+pub use crate::draft::*;
+pub use crate::expiration::*;
+
+#[derive(Debug, Clone)]
+enum CookieStr<'c> {
+    /// An string derived from indexes (start, end).
+    Indexed(usize, usize),
+    /// A string derived from a concrete string.
+    Concrete(Cow<'c, str>),
+}
+
+impl<'c> CookieStr<'c> {
+    /// Retrieves the string `self` corresponds to. If `self` is derived from
+    /// indexes, the corresponding subslice of `string` is returned. Otherwise,
+    /// the concrete string is returned.
+    ///
+    /// # Panics
+    ///
+    /// Panics if `self` is an indexed string and `string` is None.
+    fn to_str<'s>(&'s self, string: Option<&'s Cow<str>>) -> &'s str {
+        match *self {
+            CookieStr::Indexed(i, j) => {
+                let s = string.expect("`Some` base string must exist when \
+                    converting indexed str to str! (This is a module invariant.)");
+                &s[i..j]
+            },
+            CookieStr::Concrete(ref cstr) => &*cstr,
+        }
+    }
+
+    #[allow(clippy::ptr_arg)]
+    fn to_raw_str<'s, 'b: 's>(&'s self, string: &'s Cow<'b, str>) -> Option<&'b str> {
+        match *self {
+            CookieStr::Indexed(i, j) => {
+                match *string {
+                    Cow::Borrowed(s) => Some(&s[i..j]),
+                    Cow::Owned(_) => None,
+                }
+            },
+            CookieStr::Concrete(_) => None,
+        }
+    }
+
+    fn into_owned(self) -> CookieStr<'static> {
+        use crate::CookieStr::*;
+
+        match self {
+            Indexed(a, b) => Indexed(a, b),
+            Concrete(Cow::Owned(c)) => Concrete(Cow::Owned(c)),
+            Concrete(Cow::Borrowed(c)) => Concrete(Cow::Owned(c.into())),
+        }
+    }
+}
+
+/// Representation of an HTTP cookie.
+///
+/// # Constructing a `Cookie`
+///
+/// To construct a cookie with only a name/value, use [`Cookie::new()`]:
+///
+/// ```rust
+/// use cookie::Cookie;
+///
+/// let cookie = Cookie::new("name", "value");
+/// assert_eq!(&cookie.to_string(), "name=value");
+/// ```
+///
+/// To construct more elaborate cookies, use [`Cookie::build()`] and
+/// [`CookieBuilder`] methods:
+///
+/// ```rust
+/// use cookie::Cookie;
+///
+/// let cookie = Cookie::build("name", "value")
+///     .domain("www.rust-lang.org")
+///     .path("/")
+///     .secure(true)
+///     .http_only(true)
+///     .finish();
+/// ```
+#[derive(Debug, Clone)]
+pub struct Cookie<'c> {
+    /// Storage for the cookie string. Only used if this structure was derived
+    /// from a string that was subsequently parsed.
+    cookie_string: Option<Cow<'c, str>>,
+    /// The cookie's name.
+    name: CookieStr<'c>,
+    /// The cookie's value.
+    value: CookieStr<'c>,
+    /// The cookie's expiration, if any.
+    expires: Option<Expiration>,
+    /// The cookie's maximum age, if any.
+    max_age: Option<Duration>,
+    /// The cookie's domain, if any.
+    domain: Option<CookieStr<'c>>,
+    /// The cookie's path domain, if any.
+    path: Option<CookieStr<'c>>,
+    /// Whether this cookie was marked Secure.
+    secure: Option<bool>,
+    /// Whether this cookie was marked HttpOnly.
+    http_only: Option<bool>,
+    /// The draft `SameSite` attribute.
+    same_site: Option<SameSite>,
+}
+
+impl<'c> Cookie<'c> {
+    /// Creates a new `Cookie` with the given name and value.
+    ///
+    /// # Example
+    ///
+    /// ```rust
+    /// use cookie::Cookie;
+    ///
+    /// let cookie = Cookie::new("name", "value");
+    /// assert_eq!(cookie.name_value(), ("name", "value"));
+    /// ```
+    pub fn new<N, V>(name: N, value: V) -> Self
+        where N: Into<Cow<'c, str>>,
+              V: Into<Cow<'c, str>>
+    {
+        Cookie {
+            cookie_string: None,
+            name: CookieStr::Concrete(name.into()),
+            value: CookieStr::Concrete(value.into()),
+            expires: None,
+            max_age: None,
+            domain: None,
+            path: None,
+            secure: None,
+            http_only: None,
+            same_site: None,
+        }
+    }
+
+    /// Creates a new `Cookie` with the given name and an empty value.
+    ///
+    /// # Example
+    ///
+    /// ```rust
+    /// use cookie::Cookie;
+    ///
+    /// let cookie = Cookie::named("name");
+    /// assert_eq!(cookie.name(), "name");
+    /// assert!(cookie.value().is_empty());
+    /// ```
+    pub fn named<N>(name: N) -> Cookie<'c>
+        where N: Into<Cow<'c, str>>
+    {
+        Cookie::new(name, "")
+    }
+
+    /// Creates a new `CookieBuilder` instance from the given key and value
+    /// strings.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let c = Cookie::build("foo", "bar").finish();
+    /// assert_eq!(c.name_value(), ("foo", "bar"));
+    /// ```
+    pub fn build<N, V>(name: N, value: V) -> CookieBuilder<'c>
+        where N: Into<Cow<'c, str>>,
+              V: Into<Cow<'c, str>>
+    {
+        CookieBuilder::new(name, value)
+    }
+
+    /// Parses a `Cookie` from the given HTTP cookie header value string. Does
+    /// not perform any percent-decoding.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let c = Cookie::parse("foo=bar%20baz; HttpOnly").unwrap();
+    /// assert_eq!(c.name_value(), ("foo", "bar%20baz"));
+    /// assert_eq!(c.http_only(), Some(true));
+    /// ```
+    pub fn parse<S>(s: S) -> Result<Cookie<'c>, ParseError>
+        where S: Into<Cow<'c, str>>
+    {
+        parse_cookie(s, false)
+    }
+
+    /// Parses a `Cookie` from the given HTTP cookie header value string where
+    /// the name and value fields are percent-encoded. Percent-decodes the
+    /// name/value fields.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let c = Cookie::parse_encoded("foo=bar%20baz; HttpOnly").unwrap();
+    /// assert_eq!(c.name_value(), ("foo", "bar baz"));
+    /// assert_eq!(c.http_only(), Some(true));
+    /// ```
+    #[cfg(feature = "percent-encode")]
+    #[cfg_attr(all(nightly, doc), doc(cfg(feature = "percent-encode")))]
+    pub fn parse_encoded<S>(s: S) -> Result<Cookie<'c>, ParseError>
+        where S: Into<Cow<'c, str>>
+    {
+        parse_cookie(s, true)
+    }
+
+    /// Converts `self` into a `Cookie` with a static lifetime with as few
+    /// allocations as possible.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let c = Cookie::new("a", "b");
+    /// let owned_cookie = c.into_owned();
+    /// assert_eq!(owned_cookie.name_value(), ("a", "b"));
+    /// ```
+    pub fn into_owned(self) -> Cookie<'static> {
+        Cookie {
+            cookie_string: self.cookie_string.map(|s| s.into_owned().into()),
+            name: self.name.into_owned(),
+            value: self.value.into_owned(),
+            expires: self.expires,
+            max_age: self.max_age,
+            domain: self.domain.map(|s| s.into_owned()),
+            path: self.path.map(|s| s.into_owned()),
+            secure: self.secure,
+            http_only: self.http_only,
+            same_site: self.same_site,
+        }
+    }
+
+    /// Returns the name of `self`.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let c = Cookie::new("name", "value");
+    /// assert_eq!(c.name(), "name");
+    /// ```
+    #[inline]
+    pub fn name(&self) -> &str {
+        self.name.to_str(self.cookie_string.as_ref())
+    }
+
+    /// Returns the value of `self`.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let c = Cookie::new("name", "value");
+    /// assert_eq!(c.value(), "value");
+    /// ```
+    #[inline]
+    pub fn value(&self) -> &str {
+        self.value.to_str(self.cookie_string.as_ref())
+    }
+
+    /// Returns the name and value of `self` as a tuple of `(name, value)`.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let c = Cookie::new("name", "value");
+    /// assert_eq!(c.name_value(), ("name", "value"));
+    /// ```
+    #[inline]
+    pub fn name_value(&self) -> (&str, &str) {
+        (self.name(), self.value())
+    }
+
+    /// Returns whether this cookie was marked `HttpOnly` or not. Returns
+    /// `Some(true)` when the cookie was explicitly set (manually or parsed) as
+    /// `HttpOnly`, `Some(false)` when `http_only` was manually set to `false`,
+    /// and `None` otherwise.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let c = Cookie::parse("name=value; httponly").unwrap();
+    /// assert_eq!(c.http_only(), Some(true));
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.http_only(), None);
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.http_only(), None);
+    ///
+    /// // An explicitly set "false" value.
+    /// c.set_http_only(false);
+    /// assert_eq!(c.http_only(), Some(false));
+    ///
+    /// // An explicitly set "true" value.
+    /// c.set_http_only(true);
+    /// assert_eq!(c.http_only(), Some(true));
+    /// ```
+    #[inline]
+    pub fn http_only(&self) -> Option<bool> {
+        self.http_only
+    }
+
+    /// Returns whether this cookie was marked `Secure` or not. Returns
+    /// `Some(true)` when the cookie was explicitly set (manually or parsed) as
+    /// `Secure`, `Some(false)` when `secure` was manually set to `false`, and
+    /// `None` otherwise.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let c = Cookie::parse("name=value; Secure").unwrap();
+    /// assert_eq!(c.secure(), Some(true));
+    ///
+    /// let mut c = Cookie::parse("name=value").unwrap();
+    /// assert_eq!(c.secure(), None);
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.secure(), None);
+    ///
+    /// // An explicitly set "false" value.
+    /// c.set_secure(false);
+    /// assert_eq!(c.secure(), Some(false));
+    ///
+    /// // An explicitly set "true" value.
+    /// c.set_secure(true);
+    /// assert_eq!(c.secure(), Some(true));
+    /// ```
+    #[inline]
+    pub fn secure(&self) -> Option<bool> {
+        self.secure
+    }
+
+    /// Returns the `SameSite` attribute of this cookie if one was specified.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::{Cookie, SameSite};
+    ///
+    /// let c = Cookie::parse("name=value; SameSite=Lax").unwrap();
+    /// assert_eq!(c.same_site(), Some(SameSite::Lax));
+    /// ```
+    #[inline]
+    pub fn same_site(&self) -> Option<SameSite> {
+        self.same_site
+    }
+
+    /// Returns the specified max-age of the cookie if one was specified.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let c = Cookie::parse("name=value").unwrap();
+    /// assert_eq!(c.max_age(), None);
+    ///
+    /// let c = Cookie::parse("name=value; Max-Age=3600").unwrap();
+    /// assert_eq!(c.max_age().map(|age| age.whole_hours()), Some(1));
+    /// ```
+    #[inline]
+    pub fn max_age(&self) -> Option<Duration> {
+        self.max_age
+    }
+
+    /// Returns the `Path` of the cookie if one was specified.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let c = Cookie::parse("name=value").unwrap();
+    /// assert_eq!(c.path(), None);
+    ///
+    /// let c = Cookie::parse("name=value; Path=/").unwrap();
+    /// assert_eq!(c.path(), Some("/"));
+    ///
+    /// let c = Cookie::parse("name=value; path=/sub").unwrap();
+    /// assert_eq!(c.path(), Some("/sub"));
+    /// ```
+    #[inline]
+    pub fn path(&self) -> Option<&str> {
+        match self.path {
+            Some(ref c) => Some(c.to_str(self.cookie_string.as_ref())),
+            None => None,
+        }
+    }
+
+    /// Returns the `Domain` of the cookie if one was specified.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let c = Cookie::parse("name=value").unwrap();
+    /// assert_eq!(c.domain(), None);
+    ///
+    /// let c = Cookie::parse("name=value; Domain=crates.io").unwrap();
+    /// assert_eq!(c.domain(), Some("crates.io"));
+    /// ```
+    #[inline]
+    pub fn domain(&self) -> Option<&str> {
+        match self.domain {
+            Some(ref c) => Some(c.to_str(self.cookie_string.as_ref())),
+            None => None,
+        }
+    }
+
+    /// Returns the [`Expiration`] of the cookie if one was specified.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::{Cookie, Expiration};
+    ///
+    /// let c = Cookie::parse("name=value").unwrap();
+    /// assert_eq!(c.expires(), None);
+    ///
+    /// // Here, `cookie.expires_datetime()` returns `None`.
+    /// let c = Cookie::build("name", "value").expires(None).finish();
+    /// assert_eq!(c.expires(), Some(Expiration::Session));
+    ///
+    /// let expire_time = "Wed, 21 Oct 2017 07:28:00 GMT";
+    /// let cookie_str = format!("name=value; Expires={}", expire_time);
+    /// let c = Cookie::parse(cookie_str).unwrap();
+    /// assert_eq!(c.expires().and_then(|e| e.datetime()).map(|t| t.year()), Some(2017));
+    /// ```
+    #[inline]
+    pub fn expires(&self) -> Option<Expiration> {
+        self.expires
+    }
+
+    /// Returns the expiration date-time of the cookie if one was specified.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let c = Cookie::parse("name=value").unwrap();
+    /// assert_eq!(c.expires_datetime(), None);
+    ///
+    /// // Here, `cookie.expires()` returns `Some`.
+    /// let c = Cookie::build("name", "value").expires(None).finish();
+    /// assert_eq!(c.expires_datetime(), None);
+    ///
+    /// let expire_time = "Wed, 21 Oct 2017 07:28:00 GMT";
+    /// let cookie_str = format!("name=value; Expires={}", expire_time);
+    /// let c = Cookie::parse(cookie_str).unwrap();
+    /// assert_eq!(c.expires_datetime().map(|t| t.year()), Some(2017));
+    /// ```
+    #[inline]
+    pub fn expires_datetime(&self) -> Option<OffsetDateTime> {
+        self.expires.and_then(|e| e.datetime())
+    }
+
+    /// Sets the name of `self` to `name`.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.name(), "name");
+    ///
+    /// c.set_name("foo");
+    /// assert_eq!(c.name(), "foo");
+    /// ```
+    pub fn set_name<N: Into<Cow<'c, str>>>(&mut self, name: N) {
+        self.name = CookieStr::Concrete(name.into())
+    }
+
+    /// Sets the value of `self` to `value`.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.value(), "value");
+    ///
+    /// c.set_value("bar");
+    /// assert_eq!(c.value(), "bar");
+    /// ```
+    pub fn set_value<V: Into<Cow<'c, str>>>(&mut self, value: V) {
+        self.value = CookieStr::Concrete(value.into())
+    }
+
+    /// Sets the value of `http_only` in `self` to `value`.  If `value` is
+    /// `None`, the field is unset.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.http_only(), None);
+    ///
+    /// c.set_http_only(true);
+    /// assert_eq!(c.http_only(), Some(true));
+    ///
+    /// c.set_http_only(false);
+    /// assert_eq!(c.http_only(), Some(false));
+    ///
+    /// c.set_http_only(None);
+    /// assert_eq!(c.http_only(), None);
+    /// ```
+    #[inline]
+    pub fn set_http_only<T: Into<Option<bool>>>(&mut self, value: T) {
+        self.http_only = value.into();
+    }
+
+    /// Sets the value of `secure` in `self` to `value`. If `value` is `None`,
+    /// the field is unset.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.secure(), None);
+    ///
+    /// c.set_secure(true);
+    /// assert_eq!(c.secure(), Some(true));
+    ///
+    /// c.set_secure(false);
+    /// assert_eq!(c.secure(), Some(false));
+    ///
+    /// c.set_secure(None);
+    /// assert_eq!(c.secure(), None);
+    /// ```
+    #[inline]
+    pub fn set_secure<T: Into<Option<bool>>>(&mut self, value: T) {
+        self.secure = value.into();
+    }
+
+    /// Sets the value of `same_site` in `self` to `value`. If `value` is
+    /// `None`, the field is unset. If `value` is `SameSite::None`, the "Secure"
+    /// flag will be set when the cookie is written out unless `secure` is
+    /// explicitly set to `false` via [`Cookie::set_secure()`] or the equivalent
+    /// builder method.
+    ///
+    /// [HTTP draft]: https://tools.ietf.org/html/draft-west-cookie-incrementalism-00
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::{Cookie, SameSite};
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.same_site(), None);
+    ///
+    /// c.set_same_site(SameSite::None);
+    /// assert_eq!(c.same_site(), Some(SameSite::None));
+    /// assert_eq!(c.to_string(), "name=value; SameSite=None; Secure");
+    ///
+    /// c.set_secure(false);
+    /// assert_eq!(c.to_string(), "name=value; SameSite=None");
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.same_site(), None);
+    ///
+    /// c.set_same_site(SameSite::Strict);
+    /// assert_eq!(c.same_site(), Some(SameSite::Strict));
+    /// assert_eq!(c.to_string(), "name=value; SameSite=Strict");
+    ///
+    /// c.set_same_site(None);
+    /// assert_eq!(c.same_site(), None);
+    /// assert_eq!(c.to_string(), "name=value");
+    /// ```
+    #[inline]
+    pub fn set_same_site<T: Into<Option<SameSite>>>(&mut self, value: T) {
+        self.same_site = value.into();
+    }
+
+    /// Sets the value of `max_age` in `self` to `value`. If `value` is `None`,
+    /// the field is unset.
+    ///
+    /// # Example
+    ///
+    /// ```rust
+    /// # extern crate cookie;
+    /// use cookie::Cookie;
+    /// use cookie::time::Duration;
+    ///
+    /// # fn main() {
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.max_age(), None);
+    ///
+    /// c.set_max_age(Duration::hours(10));
+    /// assert_eq!(c.max_age(), Some(Duration::hours(10)));
+    ///
+    /// c.set_max_age(None);
+    /// assert!(c.max_age().is_none());
+    /// # }
+    /// ```
+    #[inline]
+    pub fn set_max_age<D: Into<Option<Duration>>>(&mut self, value: D) {
+        self.max_age = value.into();
+    }
+
+    /// Sets the `path` of `self` to `path`.
+    ///
+    /// # Example
+    ///
+    /// ```rust
+    /// use cookie::Cookie;
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.path(), None);
+    ///
+    /// c.set_path("/");
+    /// assert_eq!(c.path(), Some("/"));
+    /// ```
+    pub fn set_path<P: Into<Cow<'c, str>>>(&mut self, path: P) {
+        self.path = Some(CookieStr::Concrete(path.into()));
+    }
+
+    /// Unsets the `path` of `self`.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.path(), None);
+    ///
+    /// c.set_path("/");
+    /// assert_eq!(c.path(), Some("/"));
+    ///
+    /// c.unset_path();
+    /// assert_eq!(c.path(), None);
+    /// ```
+    pub fn unset_path(&mut self) {
+        self.path = None;
+    }
+
+    /// Sets the `domain` of `self` to `domain`.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.domain(), None);
+    ///
+    /// c.set_domain("rust-lang.org");
+    /// assert_eq!(c.domain(), Some("rust-lang.org"));
+    /// ```
+    pub fn set_domain<D: Into<Cow<'c, str>>>(&mut self, domain: D) {
+        self.domain = Some(CookieStr::Concrete(domain.into()));
+    }
+
+    /// Unsets the `domain` of `self`.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.domain(), None);
+    ///
+    /// c.set_domain("rust-lang.org");
+    /// assert_eq!(c.domain(), Some("rust-lang.org"));
+    ///
+    /// c.unset_domain();
+    /// assert_eq!(c.domain(), None);
+    /// ```
+    pub fn unset_domain(&mut self) {
+        self.domain = None;
+    }
+
+    /// Sets the expires field of `self` to `time`. If `time` is `None`, an
+    /// expiration of [`Session`](Expiration::Session) is set.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// # extern crate cookie;
+    /// use cookie::{Cookie, Expiration};
+    /// use cookie::time::{Duration, OffsetDateTime};
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.expires(), None);
+    ///
+    /// let mut now = OffsetDateTime::now_utc();
+    /// now += Duration::weeks(52);
+    ///
+    /// c.set_expires(now);
+    /// assert!(c.expires().is_some());
+    ///
+    /// c.set_expires(None);
+    /// assert_eq!(c.expires(), Some(Expiration::Session));
+    /// ```
+    pub fn set_expires<T: Into<Expiration>>(&mut self, time: T) {
+        static MAX_DATETIME: OffsetDateTime = datetime!(9999-12-31 23:59:59.999_999 UTC);
+
+        // RFC 6265 requires dates not to exceed 9999 years.
+        self.expires = Some(time.into()
+            .map(|time| std::cmp::min(time, MAX_DATETIME)));
+    }
+
+    /// Unsets the `expires` of `self`.
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::{Cookie, Expiration};
+    ///
+    /// let mut c = Cookie::new("name", "value");
+    /// assert_eq!(c.expires(), None);
+    ///
+    /// c.set_expires(None);
+    /// assert_eq!(c.expires(), Some(Expiration::Session));
+    ///
+    /// c.unset_expires();
+    /// assert_eq!(c.expires(), None);
+    /// ```
+    pub fn unset_expires(&mut self) {
+        self.expires = None;
+    }
+
+    /// Makes `self` a "permanent" cookie by extending its expiration and max
+    /// age 20 years into the future.
+    ///
+    /// # Example
+    ///
+    /// ```rust
+    /// # extern crate cookie;
+    /// use cookie::Cookie;
+    /// use cookie::time::Duration;
+    ///
+    /// # fn main() {
+    /// let mut c = Cookie::new("foo", "bar");
+    /// assert!(c.expires().is_none());
+    /// assert!(c.max_age().is_none());
+    ///
+    /// c.make_permanent();
+    /// assert!(c.expires().is_some());
+    /// assert_eq!(c.max_age(), Some(Duration::days(365 * 20)));
+    /// # }
+    /// ```
+    pub fn make_permanent(&mut self) {
+        let twenty_years = Duration::days(365 * 20);
+        self.set_max_age(twenty_years);
+        self.set_expires(OffsetDateTime::now_utc() + twenty_years);
+    }
+
+    /// Make `self` a "removal" cookie by clearing its value, setting a max-age
+    /// of `0`, and setting an expiration date far in the past.
+    ///
+    /// # Example
+    ///
+    /// ```rust
+    /// # extern crate cookie;
+    /// use cookie::Cookie;
+    /// use cookie::time::Duration;
+    ///
+    /// # fn main() {
+    /// let mut c = Cookie::new("foo", "bar");
+    /// c.make_permanent();
+    /// assert_eq!(c.max_age(), Some(Duration::days(365 * 20)));
+    /// assert_eq!(c.value(), "bar");
+    ///
+    /// c.make_removal();
+    /// assert_eq!(c.value(), "");
+    /// assert_eq!(c.max_age(), Some(Duration::ZERO));
+    /// # }
+    /// ```
+    pub fn make_removal(&mut self) {
+        self.set_value("");
+        self.set_max_age(Duration::seconds(0));
+        self.set_expires(OffsetDateTime::now_utc() - Duration::days(365));
+    }
+
+    fn fmt_parameters(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        if let Some(true) = self.http_only() {
+            write!(f, "; HttpOnly")?;
+        }
+
+        if let Some(same_site) = self.same_site() {
+            write!(f, "; SameSite={}", same_site)?;
+
+            if same_site.is_none() && self.secure().is_none() {
+                write!(f, "; Secure")?;
+            }
+        }
+
+        if let Some(true) = self.secure() {
+            write!(f, "; Secure")?;
+        }
+
+        if let Some(path) = self.path() {
+            write!(f, "; Path={}", path)?;
+        }
+
+        if let Some(domain) = self.domain() {
+            write!(f, "; Domain={}", domain)?;
+        }
+
+        if let Some(max_age) = self.max_age() {
+            write!(f, "; Max-Age={}", max_age.whole_seconds())?;
+        }
+
+        if let Some(time) = self.expires_datetime() {
+            let time = time.to_offset(UtcOffset::UTC);
+            write!(f, "; Expires={}", time.format(&crate::parse::FMT1).map_err(|_| fmt::Error)?)?;
+        }
+
+        Ok(())
+    }
+
+    /// Returns the name of `self` as a string slice of the raw string `self`
+    /// was originally parsed from. If `self` was not originally parsed from a
+    /// raw string, returns `None`.
+    ///
+    /// This method differs from [`Cookie::name()`] in that it returns a string
+    /// with the same lifetime as the originally parsed string. This lifetime
+    /// may outlive `self`. If a longer lifetime is not required, or you're
+    /// unsure if you need a longer lifetime, use [`Cookie::name()`].
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let cookie_string = format!("{}={}", "foo", "bar");
+    ///
+    /// // `c` will be dropped at the end of the scope, but `name` will live on
+    /// let name = {
+    ///     let c = Cookie::parse(cookie_string.as_str()).unwrap();
+    ///     c.name_raw()
+    /// };
+    ///
+    /// assert_eq!(name, Some("foo"));
+    /// ```
+    #[inline]
+    pub fn name_raw(&self) -> Option<&'c str> {
+        self.cookie_string.as_ref()
+            .and_then(|s| self.name.to_raw_str(s))
+    }
+
+    /// Returns the value of `self` as a string slice of the raw string `self`
+    /// was originally parsed from. If `self` was not originally parsed from a
+    /// raw string, returns `None`.
+    ///
+    /// This method differs from [`Cookie::value()`] in that it returns a
+    /// string with the same lifetime as the originally parsed string. This
+    /// lifetime may outlive `self`. If a longer lifetime is not required, or
+    /// you're unsure if you need a longer lifetime, use [`Cookie::value()`].
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let cookie_string = format!("{}={}", "foo", "bar");
+    ///
+    /// // `c` will be dropped at the end of the scope, but `value` will live on
+    /// let value = {
+    ///     let c = Cookie::parse(cookie_string.as_str()).unwrap();
+    ///     c.value_raw()
+    /// };
+    ///
+    /// assert_eq!(value, Some("bar"));
+    /// ```
+    #[inline]
+    pub fn value_raw(&self) -> Option<&'c str> {
+        self.cookie_string.as_ref()
+            .and_then(|s| self.value.to_raw_str(s))
+    }
+
+    /// Returns the `Path` of `self` as a string slice of the raw string `self`
+    /// was originally parsed from. If `self` was not originally parsed from a
+    /// raw string, or if `self` doesn't contain a `Path`, or if the `Path` has
+    /// changed since parsing, returns `None`.
+    ///
+    /// This method differs from [`Cookie::path()`] in that it returns a
+    /// string with the same lifetime as the originally parsed string. This
+    /// lifetime may outlive `self`. If a longer lifetime is not required, or
+    /// you're unsure if you need a longer lifetime, use [`Cookie::path()`].
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let cookie_string = format!("{}={}; Path=/", "foo", "bar");
+    ///
+    /// // `c` will be dropped at the end of the scope, but `path` will live on
+    /// let path = {
+    ///     let c = Cookie::parse(cookie_string.as_str()).unwrap();
+    ///     c.path_raw()
+    /// };
+    ///
+    /// assert_eq!(path, Some("/"));
+    /// ```
+    #[inline]
+    pub fn path_raw(&self) -> Option<&'c str> {
+        match (self.path.as_ref(), self.cookie_string.as_ref()) {
+            (Some(path), Some(string)) => path.to_raw_str(string),
+            _ => None,
+        }
+    }
+
+    /// Returns the `Domain` of `self` as a string slice of the raw string
+    /// `self` was originally parsed from. If `self` was not originally parsed
+    /// from a raw string, or if `self` doesn't contain a `Domain`, or if the
+    /// `Domain` has changed since parsing, returns `None`.
+    ///
+    /// This method differs from [`Cookie::domain()`] in that it returns a
+    /// string with the same lifetime as the originally parsed string. This
+    /// lifetime may outlive `self` struct. If a longer lifetime is not
+    /// required, or you're unsure if you need a longer lifetime, use
+    /// [`Cookie::domain()`].
+    ///
+    /// # Example
+    ///
+    /// ```
+    /// use cookie::Cookie;
+    ///
+    /// let cookie_string = format!("{}={}; Domain=crates.io", "foo", "bar");
+    ///
+    /// //`c` will be dropped at the end of the scope, but `domain` will live on
+    /// let domain = {
+    ///     let c = Cookie::parse(cookie_string.as_str()).unwrap();
+    ///     c.domain_raw()
+    /// };
+    ///
+    /// assert_eq!(domain, Some("crates.io"));
+    /// ```
+    #[inline]
+    pub fn domain_raw(&self) -> Option<&'c str> {
+        match (self.domain.as_ref(), self.cookie_string.as_ref()) {
+            (Some(domain), Some(string)) => domain.to_raw_str(string),
+            _ => None,
+        }
+    }
+
+    /// Wraps `self` in an encoded [`Display`]: a cost-free wrapper around
+    /// `Cookie` whose [`fmt::Display`] implementation percent-encodes the name
+    /// and value of the wrapped `Cookie`.
+    ///
+    /// The returned structure can be chained with [`Display::stripped()`] to
+    /// display only the name and value.
+    ///
+    /// # Example
+    ///
+    /// ```rust
+    /// use cookie::Cookie;
+    ///
+    /// let mut c = Cookie::build("my name", "this; value?").secure(true).finish();
+    /// assert_eq!(&c.encoded().to_string(), "my%20name=this%3B%20value%3F; Secure");
+    /// assert_eq!(&c.encoded().stripped().to_string(), "my%20name=this%3B%20value%3F");
+    /// ```
+    #[cfg(feature = "percent-encode")]
+    #[cfg_attr(all(nightly, doc), doc(cfg(feature = "percent-encode")))]
+    #[inline(always)]
+    pub fn encoded<'a>(&'a self) -> Display<'a, 'c> {
+        Display::new_encoded(self)
+    }
+
+    /// Wraps `self` in a stripped `Display`]: a cost-free wrapper around
+    /// `Cookie` whose [`fmt::Display`] implementation prints only the `name`
+    /// and `value` of the wrapped `Cookie`.
+    ///
+    /// The returned structure can be chained with [`Display::encoded()`] to
+    /// encode the name and value.
+    ///
+    /// # Example
+    ///
+    /// ```rust
+    /// use cookie::Cookie;
+    ///
+    /// let mut c = Cookie::build("key?", "value").secure(true).path("/").finish();
+    /// assert_eq!(&c.stripped().to_string(), "key?=value");
+    #[cfg_attr(feature = "percent-encode", doc = r##"
+// Note: `encoded()` is only available when `percent-encode` is enabled.
+assert_eq!(&c.stripped().encoded().to_string(), "key%3F=value");
+    #"##)]
+    /// ```
+    #[inline(always)]
+    pub fn stripped<'a>(&'a self) -> Display<'a, 'c> {
+        Display::new_stripped(self)
+    }
+}
+
+#[cfg(feature = "percent-encode")]
+mod encoding {
+    use percent_encoding::{AsciiSet, CONTROLS};
+
+    /// https://url.spec.whatwg.org/#fragment-percent-encode-set
+    const FRAGMENT: &AsciiSet = &CONTROLS
+        .add(b' ')
+        .add(b'"')
+        .add(b'<')
+        .add(b'>')
+        .add(b'`');
+
+    /// https://url.spec.whatwg.org/#path-percent-encode-set
+    const PATH: &AsciiSet = &FRAGMENT
+        .add(b'#')
+        .add(b'?')
+        .add(b'{')
+        .add(b'}');
+
+    /// https://url.spec.whatwg.org/#userinfo-percent-encode-set
+    const USERINFO: &AsciiSet = &PATH
+        .add(b'/')
+        .add(b':')
+        .add(b';')
+        .add(b'=')
+        .add(b'@')
+        .add(b'[')
+        .add(b'\\')
+        .add(b']')
+        .add(b'^')
+        .add(b'|')
+        .add(b'%');
+
+    /// https://www.rfc-editor.org/rfc/rfc6265#section-4.1.1 + '(', ')'
+    const COOKIE: &AsciiSet = &USERINFO
+        .add(b'(')
+        .add(b')')
+        .add(b',');
+
+    /// Percent-encode a cookie name or value with the proper encoding set.
+    pub fn encode(string: &str) -> impl std::fmt::Display + '_ {
+        percent_encoding::percent_encode(string.as_bytes(), COOKIE)
+    }
+}
+
+/// Wrapper around `Cookie` whose `Display` implementation either
+/// percent-encodes the cookie's name and value, skips displaying the cookie's
+/// parameters (only displaying it's name and value), or both.
+///
+/// A value of this type can be obtained via [`Cookie::encoded()`] and
+/// [`Cookie::stripped()`], or an arbitrary chaining of the two methods. This
+/// type should only be used for its `Display` implementation.
+///
+/// # Example
+///
+/// ```rust
+/// use cookie::Cookie;
+///
+/// let c = Cookie::build("my name", "this; value%?").secure(true).finish();
+/// assert_eq!(&c.stripped().to_string(), "my name=this; value%?");
+#[cfg_attr(feature = "percent-encode", doc = r##"
+// Note: `encoded()` is only available when `percent-encode` is enabled.
+assert_eq!(&c.encoded().to_string(), "my%20name=this%3B%20value%25%3F; Secure");
+assert_eq!(&c.stripped().encoded().to_string(), "my%20name=this%3B%20value%25%3F");
+assert_eq!(&c.encoded().stripped().to_string(), "my%20name=this%3B%20value%25%3F");
+"##)]
+/// ```
+pub struct Display<'a, 'c: 'a> {
+    cookie: &'a Cookie<'c>,
+    #[cfg(feature = "percent-encode")]
+    encode: bool,
+    strip: bool,
+}
+
+impl<'a, 'c: 'a> fmt::Display for Display<'a, 'c> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        #[cfg(feature = "percent-encode")] {
+            if self.encode {
+                let name = encoding::encode(self.cookie.name());
+                let value = encoding::encode(self.cookie.value());
+                write!(f, "{}={}", name, value)?;
+            } else {
+                write!(f, "{}={}", self.cookie.name(), self.cookie.value())?;
+            }
+        }
+
+        #[cfg(not(feature = "percent-encode"))] {
+            write!(f, "{}={}", self.cookie.name(), self.cookie.value())?;
+        }
+
+        match self.strip {
+            true => Ok(()),
+            false => self.cookie.fmt_parameters(f)
+        }
+    }
+}
+
+impl<'a, 'c> Display<'a, 'c> {
+    #[cfg(feature = "percent-encode")]
+    fn new_encoded(cookie: &'a Cookie<'c>) -> Self {
+        Display { cookie, strip: false, encode: true }
+    }
+
+    fn new_stripped(cookie: &'a Cookie<'c>) -> Self {
+        Display { cookie, strip: true, #[cfg(feature = "percent-encode")] encode: false }
+    }
+
+    /// Percent-encode the name and value pair.
+    #[inline]
+    #[cfg(feature = "percent-encode")]
+    #[cfg_attr(all(nightly, doc), doc(cfg(feature = "percent-encode")))]
+    pub fn encoded(mut self) -> Self {
+        self.encode = true;
+        self
+    }
+
+    /// Only display the name and value.
+    #[inline]
+    pub fn stripped(mut self) -> Self {
+        self.strip = true;
+        self
+    }
+}
+
+impl<'c> fmt::Display for Cookie<'c> {
+    /// Formats the cookie `self` as a `Set-Cookie` header value.
+    ///
+    /// Does _not_ percent-encode any values. To percent-encode, use
+    /// [`Cookie::encoded()`].
+    ///
+    /// # Example
+    ///
+    /// ```rust
+    /// use cookie::Cookie;
+    ///
+    /// let mut cookie = Cookie::build("foo", "bar")
+    ///     .path("/")
+    ///     .finish();
+    ///
+    /// assert_eq!(&cookie.to_string(), "foo=bar; Path=/");
+    /// ```
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}={}", self.name(), self.value())?;
+        self.fmt_parameters(f)
+    }
+}
+
+impl FromStr for Cookie<'static> {
+    type Err = ParseError;
+
+    fn from_str(s: &str) -> Result<Cookie<'static>, ParseError> {
+        Cookie::parse(s).map(|c| c.into_owned())
+    }
+}
+
+impl<'a, 'b> PartialEq<Cookie<'b>> for Cookie<'a> {
+    fn eq(&self, other: &Cookie<'b>) -> bool {
+        let so_far_so_good = self.name() == other.name()
+            && self.value() == other.value()
+            && self.http_only() == other.http_only()
+            && self.secure() == other.secure()
+            && self.max_age() == other.max_age()
+            && self.expires() == other.expires();
+
+        if !so_far_so_good {
+            return false;
+        }
+
+        match (self.path(), other.path()) {
+            (Some(a), Some(b)) if a.eq_ignore_ascii_case(b) => {}
+            (None, None) => {}
+            _ => return false,
+        };
+
+        match (self.domain(), other.domain()) {
+            (Some(a), Some(b)) if a.eq_ignore_ascii_case(b) => {}
+            (None, None) => {}
+            _ => return false,
+        };
+
+        true
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::{Cookie, SameSite, parse::parse_date};
+    use time::{Duration, OffsetDateTime};
+
+    #[test]
+    fn format() {
+        let cookie = Cookie::new("foo", "bar");
+        assert_eq!(&cookie.to_string(), "foo=bar");
+
+        let cookie = Cookie::build("foo", "bar")
+            .http_only(true).finish();
+        assert_eq!(&cookie.to_string(), "foo=bar; HttpOnly");
+
+        let cookie = Cookie::build("foo", "bar")
+            .max_age(Duration::seconds(10)).finish();
+        assert_eq!(&cookie.to_string(), "foo=bar; Max-Age=10");
+
+        let cookie = Cookie::build("foo", "bar")
+            .secure(true).finish();
+        assert_eq!(&cookie.to_string(), "foo=bar; Secure");
+
+        let cookie = Cookie::build("foo", "bar")
+            .path("/").finish();
+        assert_eq!(&cookie.to_string(), "foo=bar; Path=/");
+
+        let cookie = Cookie::build("foo", "bar")
+            .domain("www.rust-lang.org").finish();
+        assert_eq!(&cookie.to_string(), "foo=bar; Domain=www.rust-lang.org");
+
+        let time_str = "Wed, 21 Oct 2015 07:28:00 GMT";
+        let expires = parse_date(time_str, &crate::parse::FMT1).unwrap();
+        let cookie = Cookie::build("foo", "bar")
+            .expires(expires).finish();
+        assert_eq!(&cookie.to_string(),
+                   "foo=bar; Expires=Wed, 21 Oct 2015 07:28:00 GMT");
+
+        let cookie = Cookie::build("foo", "bar")
+            .same_site(SameSite::Strict).finish();
+        assert_eq!(&cookie.to_string(), "foo=bar; SameSite=Strict");
+
+        let cookie = Cookie::build("foo", "bar")
+            .same_site(SameSite::Lax).finish();
+        assert_eq!(&cookie.to_string(), "foo=bar; SameSite=Lax");
+
+        let mut cookie = Cookie::build("foo", "bar")
+            .same_site(SameSite::None).finish();
+        assert_eq!(&cookie.to_string(), "foo=bar; SameSite=None; Secure");
+
+        cookie.set_same_site(None);
+        assert_eq!(&cookie.to_string(), "foo=bar");
+
+        let mut cookie = Cookie::build("foo", "bar")
+            .same_site(SameSite::None)
+            .secure(false)
+            .finish();
+        assert_eq!(&cookie.to_string(), "foo=bar; SameSite=None");
+        cookie.set_secure(true);
+        assert_eq!(&cookie.to_string(), "foo=bar; SameSite=None; Secure");
+    }
+
+    #[test]
+    #[ignore]
+    fn format_date_wraps() {
+        let expires = OffsetDateTime::UNIX_EPOCH + Duration::MAX;
+        let cookie = Cookie::build("foo", "bar").expires(expires).finish();
+        assert_eq!(&cookie.to_string(), "foo=bar; Expires=Fri, 31 Dec 9999 23:59:59 GMT");
+
+        let expires = time::macros::datetime!(9999-01-01 0:00 UTC) + Duration::days(1000);
+        let cookie = Cookie::build("foo", "bar").expires(expires).finish();
+        assert_eq!(&cookie.to_string(), "foo=bar; Expires=Fri, 31 Dec 9999 23:59:59 GMT");
+    }
+
+    #[test]
+    fn cookie_string_long_lifetimes() {
+        let cookie_string = "bar=baz; Path=/subdir; HttpOnly; Domain=crates.io".to_owned();
+        let (name, value, path, domain) = {
+            // Create a cookie passing a slice
+            let c = Cookie::parse(cookie_string.as_str()).unwrap();
+            (c.name_raw(), c.value_raw(), c.path_raw(), c.domain_raw())
+        };
+
+        assert_eq!(name, Some("bar"));
+        assert_eq!(value, Some("baz"));
+        assert_eq!(path, Some("/subdir"));
+        assert_eq!(domain, Some("crates.io"));
+    }
+
+    #[test]
+    fn owned_cookie_string() {
+        let cookie_string = "bar=baz; Path=/subdir; HttpOnly; Domain=crates.io".to_owned();
+        let (name, value, path, domain) = {
+            // Create a cookie passing an owned string
+            let c = Cookie::parse(cookie_string).unwrap();
+            (c.name_raw(), c.value_raw(), c.path_raw(), c.domain_raw())
+        };
+
+        assert_eq!(name, None);
+        assert_eq!(value, None);
+        assert_eq!(path, None);
+        assert_eq!(domain, None);
+    }
+
+    #[test]
+    fn owned_cookie_struct() {
+        let cookie_string = "bar=baz; Path=/subdir; HttpOnly; Domain=crates.io";
+        let (name, value, path, domain) = {
+            // Create an owned cookie
+            let c = Cookie::parse(cookie_string).unwrap().into_owned();
+
+            (c.name_raw(), c.value_raw(), c.path_raw(), c.domain_raw())
+        };
+
+        assert_eq!(name, None);
+        assert_eq!(value, None);
+        assert_eq!(path, None);
+        assert_eq!(domain, None);
+    }
+
+    #[test]
+    #[cfg(feature = "percent-encode")]
+    fn format_encoded() {
+        let cookie = Cookie::build("foo !%?=", "bar;;, a").finish();
+        let cookie_str = cookie.encoded().to_string();
+        assert_eq!(&cookie_str, "foo%20!%25%3F%3D=bar%3B%3B%2C%20a");
+
+        let cookie = Cookie::parse_encoded(cookie_str).unwrap();
+        assert_eq!(cookie.name_value(), ("foo !%?=", "bar;;, a"));
+    }
+}