<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source to the Rust file `src/middleware/session.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>session.rs.html -- source</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><script src="../../../storage.js"></script></head><body class="rustdoc source"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><a id="settings-menu" href="../../../settings.html"><img src="../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><pre class="line-numbers"><span id="1"> 1</span>
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</pre><pre class="rust ">
<span class="doccomment">//! User sessions.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! Actix provides a general solution for session management. The</span>
<span class="doccomment">//! [**SessionStorage**](struct.SessionStorage.html)</span>
<span class="doccomment">//! middleware can be used with different backend types to store session</span>
<span class="doccomment">//! data in different backends.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! By default, only cookie session backend is implemented. Other</span>
<span class="doccomment">//! backend implementations can be added.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! [**CookieSessionBackend**](struct.CookieSessionBackend.html)</span>
<span class="doccomment">//! uses cookies as session storage. `CookieSessionBackend` creates sessions</span>
<span class="doccomment">//! which are limited to storing fewer than 4000 bytes of data, as the payload</span>
<span class="doccomment">//! must fit into a single cookie. An internal server error is generated if a</span>
<span class="doccomment">//! session contains more than 4000 bytes.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! A cookie may have a security policy of *signed* or *private*. Each has</span>
<span class="doccomment">//! a respective `CookieSessionBackend` constructor.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! A *signed* cookie may be viewed but not modified by the client. A *private*</span>
<span class="doccomment">//! cookie may neither be viewed nor modified by the client.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! The constructors take a key as an argument. This is the private key</span>
<span class="doccomment">//! for cookie session - when this value is changed, all session data is lost.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! In general, you create a `SessionStorage` middleware and initialize it</span>
<span class="doccomment">//! with specific backend implementation, such as a `CookieSessionBackend`.</span>
<span class="doccomment">//! To access session data,</span>
<span class="doccomment">//! [*HttpRequest::session()*](trait.RequestSession.html#tymethod.session)</span>
<span class="doccomment">//! must be used. This method returns a</span>
<span class="doccomment">//! [*Session*](struct.Session.html) object, which allows us to get or set</span>
<span class="doccomment">//! session data.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! ```rust</span>
<span class="doccomment">//! # extern crate actix_web;</span>
<span class="doccomment">//! use actix_web::{actix, server, App, HttpRequest, Result};</span>
<span class="doccomment">//! use actix_web::middleware::session::{RequestSession, SessionStorage, CookieSessionBackend};</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! fn index(req: HttpRequest) -> Result<&'static str> {</span>
<span class="doccomment">//! // access session data</span>
<span class="doccomment">//! if let Some(count) = req.session().get::<i32>("counter")? {</span>
<span class="doccomment">//! println!("SESSION value: {}", count);</span>
<span class="doccomment">//! req.session().set("counter", count+1)?;</span>
<span class="doccomment">//! } else {</span>
<span class="doccomment">//! req.session().set("counter", 1)?;</span>
<span class="doccomment">//! }</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! Ok("Welcome!")</span>
<span class="doccomment">//! }</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! fn main() {</span>
<span class="doccomment">//! actix::System::run(|| {</span>
<span class="doccomment">//! server::new(</span>
<span class="doccomment">//! || App::new().middleware(</span>
<span class="doccomment">//! SessionStorage::new( // <- create session middleware</span>
<span class="doccomment">//! CookieSessionBackend::signed(&[0; 32]) // <- create signed cookie session backend</span>
<span class="doccomment">//! .secure(false)</span>
<span class="doccomment">//! )))</span>
<span class="doccomment">//! .bind("127.0.0.1:59880").unwrap()</span>
<span class="doccomment">//! .start();</span>
<span class="doccomment">//! # actix::System::current().stop();</span>
<span class="doccomment">//! });</span>
<span class="doccomment">//! }</span>
<span class="doccomment">//! ```</span>
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">cell</span>::<span class="ident">RefCell</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">HashMap</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">marker</span>::<span class="ident">PhantomData</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">rc</span>::<span class="ident">Rc</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">sync</span>::<span class="ident">Arc</span>;
<span class="kw">use</span> <span class="ident">cookie</span>::{<span class="ident">Cookie</span>, <span class="ident">CookieJar</span>, <span class="ident">Key</span>, <span class="ident">SameSite</span>};
<span class="kw">use</span> <span class="ident">futures</span>::<span class="ident">future</span>::{<span class="ident">err</span> <span class="kw">as</span> <span class="ident">FutErr</span>, <span class="ident">ok</span> <span class="kw">as</span> <span class="ident">FutOk</span>, <span class="ident">FutureResult</span>};
<span class="kw">use</span> <span class="ident">futures</span>::<span class="ident">Future</span>;
<span class="kw">use</span> <span class="ident">http</span>::<span class="ident">header</span>::{<span class="self">self</span>, <span class="ident">HeaderValue</span>};
<span class="kw">use</span> <span class="ident">serde</span>::<span class="ident">de</span>::<span class="ident">DeserializeOwned</span>;
<span class="kw">use</span> <span class="ident">serde</span>::<span class="ident">Serialize</span>;
<span class="kw">use</span> <span class="ident">serde_json</span>;
<span class="kw">use</span> <span class="ident">serde_json</span>::<span class="ident">error</span>::<span class="ident">Error</span> <span class="kw">as</span> <span class="ident">JsonError</span>;
<span class="kw">use</span> <span class="ident">time</span>::<span class="ident">Duration</span>;
<span class="kw">use</span> <span class="ident">error</span>::{<span class="ident">Error</span>, <span class="ident">ResponseError</span>, <span class="prelude-ty">Result</span>};
<span class="kw">use</span> <span class="ident">handler</span>::<span class="ident">FromRequest</span>;
<span class="kw">use</span> <span class="ident">httprequest</span>::<span class="ident">HttpRequest</span>;
<span class="kw">use</span> <span class="ident">httpresponse</span>::<span class="ident">HttpResponse</span>;
<span class="kw">use</span> <span class="ident">middleware</span>::{<span class="ident">Middleware</span>, <span class="ident">Response</span>, <span class="ident">Started</span>};
<span class="doccomment">/// The helper trait to obtain your session data from a request.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ```rust</span>
<span class="doccomment">/// use actix_web::middleware::session::RequestSession;</span>
<span class="doccomment">/// use actix_web::*;</span>
<span class="doccomment">///</span>
<span class="doccomment">/// fn index(mut req: HttpRequest) -> Result<&'static str> {</span>
<span class="doccomment">/// // access session data</span>
<span class="doccomment">/// if let Some(count) = req.session().get::<i32>("counter")? {</span>
<span class="doccomment">/// req.session().set("counter", count + 1)?;</span>
<span class="doccomment">/// } else {</span>
<span class="doccomment">/// req.session().set("counter", 1)?;</span>
<span class="doccomment">/// }</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Ok("Welcome!")</span>
<span class="doccomment">/// }</span>
<span class="doccomment">/// # fn main() {}</span>
<span class="doccomment">/// ```</span>
<span class="kw">pub</span> <span class="kw">trait</span> <span class="ident">RequestSession</span> {
<span class="doccomment">/// Get the session from the request</span>
<span class="kw">fn</span> <span class="ident">session</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">Session</span>;
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">S</span><span class="op">></span> <span class="ident">RequestSession</span> <span class="kw">for</span> <span class="ident">HttpRequest</span><span class="op"><</span><span class="ident">S</span><span class="op">></span> {
<span class="kw">fn</span> <span class="ident">session</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">Session</span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">s_impl</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">extensions</span>().<span class="ident">get</span>::<span class="op"><</span><span class="ident">Arc</span><span class="op"><</span><span class="ident">SessionImplCell</span><span class="op">>></span>() {
<span class="kw">return</span> <span class="ident">Session</span>(<span class="ident">SessionInner</span>::<span class="ident">Session</span>(<span class="ident">Arc</span>::<span class="ident">clone</span>(<span class="kw-2">&</span><span class="ident">s_impl</span>)));
}
<span class="ident">Session</span>(<span class="ident">SessionInner</span>::<span class="prelude-val">None</span>)
}
}
<span class="doccomment">/// The high-level interface you use to modify session data.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Session object could be obtained with</span>
<span class="doccomment">/// [`RequestSession::session`](trait.RequestSession.html#tymethod.session)</span>
<span class="doccomment">/// method. `RequestSession` trait is implemented for `HttpRequest`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ```rust</span>
<span class="doccomment">/// use actix_web::middleware::session::RequestSession;</span>
<span class="doccomment">/// use actix_web::*;</span>
<span class="doccomment">///</span>
<span class="doccomment">/// fn index(mut req: HttpRequest) -> Result<&'static str> {</span>
<span class="doccomment">/// // access session data</span>
<span class="doccomment">/// if let Some(count) = req.session().get::<i32>("counter")? {</span>
<span class="doccomment">/// req.session().set("counter", count + 1)?;</span>
<span class="doccomment">/// } else {</span>
<span class="doccomment">/// req.session().set("counter", 1)?;</span>
<span class="doccomment">/// }</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Ok("Welcome!")</span>
<span class="doccomment">/// }</span>
<span class="doccomment">/// # fn main() {}</span>
<span class="doccomment">/// ```</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Session</span>(<span class="ident">SessionInner</span>);
<span class="kw">enum</span> <span class="ident">SessionInner</span> {
<span class="ident">Session</span>(<span class="ident">Arc</span><span class="op"><</span><span class="ident">SessionImplCell</span><span class="op">></span>),
<span class="prelude-val">None</span>,
}
<span class="kw">impl</span> <span class="ident">Session</span> {
<span class="doccomment">/// Get a `value` from the session.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">DeserializeOwned</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">key</span>: <span class="kw-2">&</span><span class="ident">str</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> {
<span class="kw">match</span> <span class="self">self</span>.<span class="number">0</span> {
<span class="ident">SessionInner</span>::<span class="ident">Session</span>(<span class="kw-2">ref</span> <span class="ident">sess</span>) <span class="op">=></span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">s</span>) <span class="op">=</span> <span class="ident">sess</span>.<span class="ident">as_ref</span>().<span class="number">0</span>.<span class="ident">borrow</span>().<span class="ident">get</span>(<span class="ident">key</span>) {
<span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">serde_json</span>::<span class="ident">from_str</span>(<span class="ident">s</span>)<span class="question-mark">?</span>))
} <span class="kw">else</span> {
<span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>)
}
}
<span class="ident">SessionInner</span>::<span class="prelude-val">None</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>),
}
}
<span class="doccomment">/// Set a `value` from the session.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Serialize</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">key</span>: <span class="kw-2">&</span><span class="ident">str</span>, <span class="ident">value</span>: <span class="ident">T</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> {
<span class="kw">match</span> <span class="self">self</span>.<span class="number">0</span> {
<span class="ident">SessionInner</span>::<span class="ident">Session</span>(<span class="kw-2">ref</span> <span class="ident">sess</span>) <span class="op">=></span> {
<span class="ident">sess</span>.<span class="ident">as_ref</span>()
.<span class="number">0</span>
.<span class="ident">borrow_mut</span>()
.<span class="ident">set</span>(<span class="ident">key</span>, <span class="ident">serde_json</span>::<span class="ident">to_string</span>(<span class="kw-2">&</span><span class="ident">value</span>)<span class="question-mark">?</span>);
<span class="prelude-val">Ok</span>(())
}
<span class="ident">SessionInner</span>::<span class="prelude-val">None</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(()),
}
}
<span class="doccomment">/// Remove value from the session.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">remove</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">key</span>: <span class="kw-2">&</span><span class="ident">str</span>) {
<span class="kw">match</span> <span class="self">self</span>.<span class="number">0</span> {
<span class="ident">SessionInner</span>::<span class="ident">Session</span>(<span class="kw-2">ref</span> <span class="ident">sess</span>) <span class="op">=></span> <span class="ident">sess</span>.<span class="ident">as_ref</span>().<span class="number">0</span>.<span class="ident">borrow_mut</span>().<span class="ident">remove</span>(<span class="ident">key</span>),
<span class="ident">SessionInner</span>::<span class="prelude-val">None</span> <span class="op">=></span> (),
}
}
<span class="doccomment">/// Clear the session.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">clear</span>(<span class="kw-2">&</span><span class="self">self</span>) {
<span class="kw">match</span> <span class="self">self</span>.<span class="number">0</span> {
<span class="ident">SessionInner</span>::<span class="ident">Session</span>(<span class="kw-2">ref</span> <span class="ident">sess</span>) <span class="op">=></span> <span class="ident">sess</span>.<span class="ident">as_ref</span>().<span class="number">0</span>.<span class="ident">borrow_mut</span>().<span class="ident">clear</span>(),
<span class="ident">SessionInner</span>::<span class="prelude-val">None</span> <span class="op">=></span> (),
}
}
}
<span class="doccomment">/// Extractor implementation for Session type.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ```rust</span>
<span class="doccomment">/// # use actix_web::*;</span>
<span class="doccomment">/// use actix_web::middleware::session::Session;</span>
<span class="doccomment">///</span>
<span class="doccomment">/// fn index(session: Session) -> Result<&'static str> {</span>
<span class="doccomment">/// // access session data</span>
<span class="doccomment">/// if let Some(count) = session.get::<i32>("counter")? {</span>
<span class="doccomment">/// session.set("counter", count + 1)?;</span>
<span class="doccomment">/// } else {</span>
<span class="doccomment">/// session.set("counter", 1)?;</span>
<span class="doccomment">/// }</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Ok("Welcome!")</span>
<span class="doccomment">/// }</span>
<span class="doccomment">/// # fn main() {}</span>
<span class="doccomment">/// ```</span>
<span class="kw">impl</span><span class="op"><</span><span class="ident">S</span><span class="op">></span> <span class="ident">FromRequest</span><span class="op"><</span><span class="ident">S</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Session</span> {
<span class="kw">type</span> <span class="ident">Config</span> <span class="op">=</span> ();
<span class="kw">type</span> <span class="prelude-ty">Result</span> <span class="op">=</span> <span class="ident">Session</span>;
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">from_request</span>(<span class="ident">req</span>: <span class="kw-2">&</span><span class="ident">HttpRequest</span><span class="op"><</span><span class="ident">S</span><span class="op">></span>, <span class="kw">_</span>: <span class="kw-2">&</span><span class="self">Self</span>::<span class="ident">Config</span>) <span class="op">-></span> <span class="self">Self</span>::<span class="prelude-ty">Result</span> {
<span class="ident">req</span>.<span class="ident">session</span>()
}
}
<span class="kw">struct</span> <span class="ident">SessionImplCell</span>(<span class="ident">RefCell</span><span class="op"><</span><span class="ident">Box</span><span class="op"><</span><span class="ident">SessionImpl</span><span class="op">>></span>);
<span class="doccomment">/// Session storage middleware</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ```rust</span>
<span class="doccomment">/// # extern crate actix_web;</span>
<span class="doccomment">/// use actix_web::middleware::session::{CookieSessionBackend, SessionStorage};</span>
<span class="doccomment">/// use actix_web::App;</span>
<span class="doccomment">///</span>
<span class="doccomment">/// fn main() {</span>
<span class="doccomment">/// let app = App::new().middleware(SessionStorage::new(</span>
<span class="doccomment">/// // <- create session middleware</span>
<span class="doccomment">/// CookieSessionBackend::signed(&[0; 32]) // <- create cookie session backend</span>
<span class="doccomment">/// .secure(false),</span>
<span class="doccomment">/// ));</span>
<span class="doccomment">/// }</span>
<span class="doccomment">/// ```</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">SessionStorage</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">S</span><span class="op">></span>(<span class="ident">T</span>, <span class="ident">PhantomData</span><span class="op"><</span><span class="ident">S</span><span class="op">></span>);
<span class="kw">impl</span><span class="op"><</span><span class="ident">S</span>, <span class="ident">T</span>: <span class="ident">SessionBackend</span><span class="op"><</span><span class="ident">S</span><span class="op">>></span> <span class="ident">SessionStorage</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">S</span><span class="op">></span> {
<span class="doccomment">/// Create session storage</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">backend</span>: <span class="ident">T</span>) <span class="op">-></span> <span class="ident">SessionStorage</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">S</span><span class="op">></span> {
<span class="ident">SessionStorage</span>(<span class="ident">backend</span>, <span class="ident">PhantomData</span>)
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">S</span>: <span class="lifetime">'static</span>, <span class="ident">T</span>: <span class="ident">SessionBackend</span><span class="op"><</span><span class="ident">S</span><span class="op">>></span> <span class="ident">Middleware</span><span class="op"><</span><span class="ident">S</span><span class="op">></span> <span class="kw">for</span> <span class="ident">SessionStorage</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">S</span><span class="op">></span> {
<span class="kw">fn</span> <span class="ident">start</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">req</span>: <span class="kw-2">&</span><span class="ident">HttpRequest</span><span class="op"><</span><span class="ident">S</span><span class="op">></span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Started</span><span class="op">></span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">req</span> <span class="op">=</span> <span class="ident">req</span>.<span class="ident">clone</span>();
<span class="kw">let</span> <span class="ident">fut</span> <span class="op">=</span> <span class="self">self</span>.<span class="number">0</span>.<span class="ident">from_request</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">req</span>).<span class="ident">then</span>(<span class="kw">move</span> <span class="op">|</span><span class="ident">res</span><span class="op">|</span> <span class="kw">match</span> <span class="ident">res</span> {
<span class="prelude-val">Ok</span>(<span class="ident">sess</span>) <span class="op">=></span> {
<span class="ident">req</span>.<span class="ident">extensions_mut</span>()
.<span class="ident">insert</span>(<span class="ident">Arc</span>::<span class="ident">new</span>(<span class="ident">SessionImplCell</span>(<span class="ident">RefCell</span>::<span class="ident">new</span>(<span class="ident">Box</span>::<span class="ident">new</span>(<span class="ident">sess</span>)))));
<span class="ident">FutOk</span>(<span class="prelude-val">None</span>)
}
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=></span> <span class="ident">FutErr</span>(<span class="ident">err</span>),
});
<span class="prelude-val">Ok</span>(<span class="ident">Started</span>::<span class="ident">Future</span>(<span class="ident">Box</span>::<span class="ident">new</span>(<span class="ident">fut</span>)))
}
<span class="kw">fn</span> <span class="ident">response</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">req</span>: <span class="kw-2">&</span><span class="ident">HttpRequest</span><span class="op"><</span><span class="ident">S</span><span class="op">></span>, <span class="ident">resp</span>: <span class="ident">HttpResponse</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Response</span><span class="op">></span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">s_box</span>) <span class="op">=</span> <span class="ident">req</span>.<span class="ident">extensions</span>().<span class="ident">get</span>::<span class="op"><</span><span class="ident">Arc</span><span class="op"><</span><span class="ident">SessionImplCell</span><span class="op">>></span>() {
<span class="ident">s_box</span>.<span class="number">0</span>.<span class="ident">borrow_mut</span>().<span class="ident">write</span>(<span class="ident">resp</span>)
} <span class="kw">else</span> {
<span class="prelude-val">Ok</span>(<span class="ident">Response</span>::<span class="ident">Done</span>(<span class="ident">resp</span>))
}
}
}
<span class="doccomment">/// A simple key-value storage interface that is internally used by `Session`.</span>
<span class="kw">pub</span> <span class="kw">trait</span> <span class="ident">SessionImpl</span>: <span class="lifetime">'static</span> {
<span class="doccomment">/// Get session value by key</span>
<span class="kw">fn</span> <span class="ident">get</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">key</span>: <span class="kw-2">&</span><span class="ident">str</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="kw-2">&</span><span class="ident">str</span><span class="op">></span>;
<span class="doccomment">/// Set session value</span>
<span class="kw">fn</span> <span class="ident">set</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">key</span>: <span class="kw-2">&</span><span class="ident">str</span>, <span class="ident">value</span>: <span class="ident">String</span>);
<span class="doccomment">/// Remove specific key from session</span>
<span class="kw">fn</span> <span class="ident">remove</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">key</span>: <span class="kw-2">&</span><span class="ident">str</span>);
<span class="doccomment">/// Remove all values from session</span>
<span class="kw">fn</span> <span class="ident">clear</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>);
<span class="doccomment">/// Write session to storage backend.</span>
<span class="kw">fn</span> <span class="ident">write</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">resp</span>: <span class="ident">HttpResponse</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Response</span><span class="op">></span>;
}
<span class="doccomment">/// Session's storage backend trait definition.</span>
<span class="kw">pub</span> <span class="kw">trait</span> <span class="ident">SessionBackend</span><span class="op"><</span><span class="ident">S</span><span class="op">></span>: <span class="ident">Sized</span> <span class="op">+</span> <span class="lifetime">'static</span> {
<span class="doccomment">/// Session item</span>
<span class="kw">type</span> <span class="ident">Session</span>: <span class="ident">SessionImpl</span>;
<span class="doccomment">/// Future that reads session</span>
<span class="kw">type</span> <span class="ident">ReadFuture</span>: <span class="ident">Future</span><span class="op"><</span><span class="ident">Item</span> <span class="op">=</span> <span class="self">Self</span>::<span class="ident">Session</span>, <span class="ident">Error</span> <span class="op">=</span> <span class="ident">Error</span><span class="op">></span>;
<span class="doccomment">/// Parse the session from request and load data from a storage backend.</span>
<span class="kw">fn</span> <span class="ident">from_request</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">request</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">HttpRequest</span><span class="op"><</span><span class="ident">S</span><span class="op">></span>) <span class="op">-></span> <span class="self">Self</span>::<span class="ident">ReadFuture</span>;
}
<span class="doccomment">/// Session that uses signed cookies as session storage</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">CookieSession</span> {
<span class="ident">changed</span>: <span class="ident">bool</span>,
<span class="ident">state</span>: <span class="ident">HashMap</span><span class="op"><</span><span class="ident">String</span>, <span class="ident">String</span><span class="op">></span>,
<span class="ident">inner</span>: <span class="ident">Rc</span><span class="op"><</span><span class="ident">CookieSessionInner</span><span class="op">></span>,
}
<span class="doccomment">/// Errors that can occur during handling cookie session</span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Fail</span>, <span class="ident">Debug</span>)]</span>
<span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">CookieSessionError</span> {
<span class="doccomment">/// Size of the serialized session is greater than 4000 bytes.</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Size of the serialized session is greater than 4000 bytes."</span>)]</span>
<span class="ident">Overflow</span>,
<span class="doccomment">/// Fail to serialize session.</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Fail to serialize session"</span>)]</span>
<span class="ident">Serialize</span>(<span class="ident">JsonError</span>),
}
<span class="kw">impl</span> <span class="ident">ResponseError</span> <span class="kw">for</span> <span class="ident">CookieSessionError</span> {}
<span class="kw">impl</span> <span class="ident">SessionImpl</span> <span class="kw">for</span> <span class="ident">CookieSession</span> {
<span class="kw">fn</span> <span class="ident">get</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">key</span>: <span class="kw-2">&</span><span class="ident">str</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="kw-2">&</span><span class="ident">str</span><span class="op">></span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">s</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">state</span>.<span class="ident">get</span>(<span class="ident">key</span>) {
<span class="prelude-val">Some</span>(<span class="ident">s</span>)
} <span class="kw">else</span> {
<span class="prelude-val">None</span>
}
}
<span class="kw">fn</span> <span class="ident">set</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">key</span>: <span class="kw-2">&</span><span class="ident">str</span>, <span class="ident">value</span>: <span class="ident">String</span>) {
<span class="self">self</span>.<span class="ident">changed</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="self">self</span>.<span class="ident">state</span>.<span class="ident">insert</span>(<span class="ident">key</span>.<span class="ident">to_owned</span>(), <span class="ident">value</span>);
}
<span class="kw">fn</span> <span class="ident">remove</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">key</span>: <span class="kw-2">&</span><span class="ident">str</span>) {
<span class="self">self</span>.<span class="ident">changed</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="self">self</span>.<span class="ident">state</span>.<span class="ident">remove</span>(<span class="ident">key</span>);
}
<span class="kw">fn</span> <span class="ident">clear</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) {
<span class="self">self</span>.<span class="ident">changed</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="self">self</span>.<span class="ident">state</span>.<span class="ident">clear</span>()
}
<span class="kw">fn</span> <span class="ident">write</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="kw-2">mut</span> <span class="ident">resp</span>: <span class="ident">HttpResponse</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Response</span><span class="op">></span> {
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">changed</span> {
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">set_cookie</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">resp</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">state</span>);
}
<span class="prelude-val">Ok</span>(<span class="ident">Response</span>::<span class="ident">Done</span>(<span class="ident">resp</span>))
}
}
<span class="kw">enum</span> <span class="ident">CookieSecurity</span> {
<span class="ident">Signed</span>,
<span class="ident">Private</span>,
}
<span class="kw">struct</span> <span class="ident">CookieSessionInner</span> {
<span class="ident">key</span>: <span class="ident">Key</span>,
<span class="ident">security</span>: <span class="ident">CookieSecurity</span>,
<span class="ident">name</span>: <span class="ident">String</span>,
<span class="ident">path</span>: <span class="ident">String</span>,
<span class="ident">domain</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">String</span><span class="op">></span>,
<span class="ident">secure</span>: <span class="ident">bool</span>,
<span class="ident">http_only</span>: <span class="ident">bool</span>,
<span class="ident">max_age</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Duration</span><span class="op">></span>,
<span class="ident">same_site</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">SameSite</span><span class="op">></span>,
}
<span class="kw">impl</span> <span class="ident">CookieSessionInner</span> {
<span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">key</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>], <span class="ident">security</span>: <span class="ident">CookieSecurity</span>) <span class="op">-></span> <span class="ident">CookieSessionInner</span> {
<span class="ident">CookieSessionInner</span> {
<span class="ident">security</span>,
<span class="ident">key</span>: <span class="ident">Key</span>::<span class="ident">from_master</span>(<span class="ident">key</span>),
<span class="ident">name</span>: <span class="string">"actix-session"</span>.<span class="ident">to_owned</span>(),
<span class="ident">path</span>: <span class="string">"/"</span>.<span class="ident">to_owned</span>(),
<span class="ident">domain</span>: <span class="prelude-val">None</span>,
<span class="ident">secure</span>: <span class="bool-val">true</span>,
<span class="ident">http_only</span>: <span class="bool-val">true</span>,
<span class="ident">max_age</span>: <span class="prelude-val">None</span>,
<span class="ident">same_site</span>: <span class="prelude-val">None</span>,
}
}
<span class="kw">fn</span> <span class="ident">set_cookie</span>(
<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">resp</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">HttpResponse</span>, <span class="ident">state</span>: <span class="kw-2">&</span><span class="ident">HashMap</span><span class="op"><</span><span class="ident">String</span>, <span class="ident">String</span><span class="op">></span>,
) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> {
<span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span>
<span class="ident">serde_json</span>::<span class="ident">to_string</span>(<span class="kw-2">&</span><span class="ident">state</span>).<span class="ident">map_err</span>(<span class="ident">CookieSessionError</span>::<span class="ident">Serialize</span>)<span class="question-mark">?</span>;
<span class="kw">if</span> <span class="ident">value</span>.<span class="ident">len</span>() <span class="op">></span> <span class="number">4064</span> {
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">CookieSessionError</span>::<span class="ident">Overflow</span>.<span class="ident">into</span>());
}
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cookie</span> <span class="op">=</span> <span class="ident">Cookie</span>::<span class="ident">new</span>(<span class="self">self</span>.<span class="ident">name</span>.<span class="ident">clone</span>(), <span class="ident">value</span>);
<span class="ident">cookie</span>.<span class="ident">set_path</span>(<span class="self">self</span>.<span class="ident">path</span>.<span class="ident">clone</span>());
<span class="ident">cookie</span>.<span class="ident">set_secure</span>(<span class="self">self</span>.<span class="ident">secure</span>);
<span class="ident">cookie</span>.<span class="ident">set_http_only</span>(<span class="self">self</span>.<span class="ident">http_only</span>);
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="ident">domain</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">domain</span> {
<span class="ident">cookie</span>.<span class="ident">set_domain</span>(<span class="ident">domain</span>.<span class="ident">clone</span>());
}
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">max_age</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">max_age</span> {
<span class="ident">cookie</span>.<span class="ident">set_max_age</span>(<span class="ident">max_age</span>);
}
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">same_site</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">same_site</span> {
<span class="ident">cookie</span>.<span class="ident">set_same_site</span>(<span class="ident">same_site</span>);
}
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">jar</span> <span class="op">=</span> <span class="ident">CookieJar</span>::<span class="ident">new</span>();
<span class="kw">match</span> <span class="self">self</span>.<span class="ident">security</span> {
<span class="ident">CookieSecurity</span>::<span class="ident">Signed</span> <span class="op">=></span> <span class="ident">jar</span>.<span class="ident">signed</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">key</span>).<span class="ident">add</span>(<span class="ident">cookie</span>),
<span class="ident">CookieSecurity</span>::<span class="ident">Private</span> <span class="op">=></span> <span class="ident">jar</span>.<span class="ident">private</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">key</span>).<span class="ident">add</span>(<span class="ident">cookie</span>),
}
<span class="kw">for</span> <span class="ident">cookie</span> <span class="kw">in</span> <span class="ident">jar</span>.<span class="ident">delta</span>() {
<span class="kw">let</span> <span class="ident">val</span> <span class="op">=</span> <span class="ident">HeaderValue</span>::<span class="ident">from_str</span>(<span class="kw-2">&</span><span class="ident">cookie</span>.<span class="ident">encoded</span>().<span class="ident">to_string</span>())<span class="question-mark">?</span>;
<span class="ident">resp</span>.<span class="ident">headers_mut</span>().<span class="ident">append</span>(<span class="ident">header</span>::<span class="ident">SET_COOKIE</span>, <span class="ident">val</span>);
}
<span class="prelude-val">Ok</span>(())
}
<span class="kw">fn</span> <span class="ident">load</span><span class="op"><</span><span class="ident">S</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">req</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">HttpRequest</span><span class="op"><</span><span class="ident">S</span><span class="op">></span>) <span class="op">-></span> <span class="ident">HashMap</span><span class="op"><</span><span class="ident">String</span>, <span class="ident">String</span><span class="op">></span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Ok</span>(<span class="ident">cookies</span>) <span class="op">=</span> <span class="ident">req</span>.<span class="ident">cookies</span>() {
<span class="kw">for</span> <span class="ident">cookie</span> <span class="kw">in</span> <span class="ident">cookies</span>.<span class="ident">iter</span>() {
<span class="kw">if</span> <span class="ident">cookie</span>.<span class="ident">name</span>() <span class="op">==</span> <span class="self">self</span>.<span class="ident">name</span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">jar</span> <span class="op">=</span> <span class="ident">CookieJar</span>::<span class="ident">new</span>();
<span class="ident">jar</span>.<span class="ident">add_original</span>(<span class="ident">cookie</span>.<span class="ident">clone</span>());
<span class="kw">let</span> <span class="ident">cookie_opt</span> <span class="op">=</span> <span class="kw">match</span> <span class="self">self</span>.<span class="ident">security</span> {
<span class="ident">CookieSecurity</span>::<span class="ident">Signed</span> <span class="op">=></span> <span class="ident">jar</span>.<span class="ident">signed</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">key</span>).<span class="ident">get</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">name</span>),
<span class="ident">CookieSecurity</span>::<span class="ident">Private</span> <span class="op">=></span> {
<span class="ident">jar</span>.<span class="ident">private</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">key</span>).<span class="ident">get</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">name</span>)
}
};
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cookie</span>) <span class="op">=</span> <span class="ident">cookie_opt</span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Ok</span>(<span class="ident">val</span>) <span class="op">=</span> <span class="ident">serde_json</span>::<span class="ident">from_str</span>(<span class="ident">cookie</span>.<span class="ident">value</span>()) {
<span class="kw">return</span> <span class="ident">val</span>;
}
}
}
}
}
<span class="ident">HashMap</span>::<span class="ident">new</span>()
}
}
<span class="doccomment">/// Use cookies for session storage.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// `CookieSessionBackend` creates sessions which are limited to storing</span>
<span class="doccomment">/// fewer than 4000 bytes of data (as the payload must fit into a single</span>
<span class="doccomment">/// cookie). An Internal Server Error is generated if the session contains more</span>
<span class="doccomment">/// than 4000 bytes.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// A cookie may have a security policy of *signed* or *private*. Each has a</span>
<span class="doccomment">/// respective `CookieSessionBackend` constructor.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// A *signed* cookie is stored on the client as plaintext alongside</span>
<span class="doccomment">/// a signature such that the cookie may be viewed but not modified by the</span>
<span class="doccomment">/// client.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// A *private* cookie is stored on the client as encrypted text</span>
<span class="doccomment">/// such that it may neither be viewed nor modified by the client.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// The constructors take a key as an argument.</span>
<span class="doccomment">/// This is the private key for cookie session - when this value is changed,</span>
<span class="doccomment">/// all session data is lost. The constructors will panic if the key is less</span>
<span class="doccomment">/// than 32 bytes in length.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// The backend relies on `cookie` crate to create and read cookies.</span>
<span class="doccomment">/// By default all cookies are percent encoded, but certain symbols may</span>
<span class="doccomment">/// cause troubles when reading cookie, if they are not properly percent encoded.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Example</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ```rust</span>
<span class="doccomment">/// # extern crate actix_web;</span>
<span class="doccomment">/// use actix_web::middleware::session::CookieSessionBackend;</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # fn main() {</span>
<span class="doccomment">/// let backend: CookieSessionBackend = CookieSessionBackend::signed(&[0; 32])</span>
<span class="doccomment">/// .domain("www.rust-lang.org")</span>
<span class="doccomment">/// .name("actix_session")</span>
<span class="doccomment">/// .path("/")</span>
<span class="doccomment">/// .secure(true);</span>
<span class="doccomment">/// # }</span>
<span class="doccomment">/// ```</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">CookieSessionBackend</span>(<span class="ident">Rc</span><span class="op"><</span><span class="ident">CookieSessionInner</span><span class="op">></span>);
<span class="kw">impl</span> <span class="ident">CookieSessionBackend</span> {
<span class="doccomment">/// Construct new *signed* `CookieSessionBackend` instance.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Panics if key length is less than 32 bytes.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">signed</span>(<span class="ident">key</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>]) <span class="op">-></span> <span class="ident">CookieSessionBackend</span> {
<span class="ident">CookieSessionBackend</span>(<span class="ident">Rc</span>::<span class="ident">new</span>(<span class="ident">CookieSessionInner</span>::<span class="ident">new</span>(
<span class="ident">key</span>,
<span class="ident">CookieSecurity</span>::<span class="ident">Signed</span>,
)))
}
<span class="doccomment">/// Construct new *private* `CookieSessionBackend` instance.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Panics if key length is less than 32 bytes.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">private</span>(<span class="ident">key</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>]) <span class="op">-></span> <span class="ident">CookieSessionBackend</span> {
<span class="ident">CookieSessionBackend</span>(<span class="ident">Rc</span>::<span class="ident">new</span>(<span class="ident">CookieSessionInner</span>::<span class="ident">new</span>(
<span class="ident">key</span>,
<span class="ident">CookieSecurity</span>::<span class="ident">Private</span>,
)))
}
<span class="doccomment">/// Sets the `path` field in the session cookie being built.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">path</span><span class="op"><</span><span class="ident">S</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">String</span><span class="op">>></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">value</span>: <span class="ident">S</span>) <span class="op">-></span> <span class="ident">CookieSessionBackend</span> {
<span class="ident">Rc</span>::<span class="ident">get_mut</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="number">0</span>).<span class="ident">unwrap</span>().<span class="ident">path</span> <span class="op">=</span> <span class="ident">value</span>.<span class="ident">into</span>();
<span class="self">self</span>
}
<span class="doccomment">/// Sets the `name` field in the session cookie being built.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">name</span><span class="op"><</span><span class="ident">S</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">String</span><span class="op">>></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">value</span>: <span class="ident">S</span>) <span class="op">-></span> <span class="ident">CookieSessionBackend</span> {
<span class="ident">Rc</span>::<span class="ident">get_mut</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="number">0</span>).<span class="ident">unwrap</span>().<span class="ident">name</span> <span class="op">=</span> <span class="ident">value</span>.<span class="ident">into</span>();
<span class="self">self</span>
}
<span class="doccomment">/// Sets the `domain` field in the session cookie being built.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">domain</span><span class="op"><</span><span class="ident">S</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">String</span><span class="op">>></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">value</span>: <span class="ident">S</span>) <span class="op">-></span> <span class="ident">CookieSessionBackend</span> {
<span class="ident">Rc</span>::<span class="ident">get_mut</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="number">0</span>).<span class="ident">unwrap</span>().<span class="ident">domain</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">value</span>.<span class="ident">into</span>());
<span class="self">self</span>
}
<span class="doccomment">/// Sets the `secure` field in the session cookie being built.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// If the `secure` field is set, a cookie will only be transmitted when the</span>
<span class="doccomment">/// connection is secure - i.e. `https`</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">secure</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">value</span>: <span class="ident">bool</span>) <span class="op">-></span> <span class="ident">CookieSessionBackend</span> {
<span class="ident">Rc</span>::<span class="ident">get_mut</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="number">0</span>).<span class="ident">unwrap</span>().<span class="ident">secure</span> <span class="op">=</span> <span class="ident">value</span>;
<span class="self">self</span>
}
<span class="doccomment">/// Sets the `http_only` field in the session cookie being built.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">http_only</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">value</span>: <span class="ident">bool</span>) <span class="op">-></span> <span class="ident">CookieSessionBackend</span> {
<span class="ident">Rc</span>::<span class="ident">get_mut</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="number">0</span>).<span class="ident">unwrap</span>().<span class="ident">http_only</span> <span class="op">=</span> <span class="ident">value</span>;
<span class="self">self</span>
}
<span class="doccomment">/// Sets the `same_site` field in the session cookie being built.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">same_site</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">value</span>: <span class="ident">SameSite</span>) <span class="op">-></span> <span class="ident">CookieSessionBackend</span> {
<span class="ident">Rc</span>::<span class="ident">get_mut</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="number">0</span>).<span class="ident">unwrap</span>().<span class="ident">same_site</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">value</span>);
<span class="self">self</span>
}
<span class="doccomment">/// Sets the `max-age` field in the session cookie being built.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">max_age</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">value</span>: <span class="ident">Duration</span>) <span class="op">-></span> <span class="ident">CookieSessionBackend</span> {
<span class="ident">Rc</span>::<span class="ident">get_mut</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="number">0</span>).<span class="ident">unwrap</span>().<span class="ident">max_age</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">value</span>);
<span class="self">self</span>
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">S</span><span class="op">></span> <span class="ident">SessionBackend</span><span class="op"><</span><span class="ident">S</span><span class="op">></span> <span class="kw">for</span> <span class="ident">CookieSessionBackend</span> {
<span class="kw">type</span> <span class="ident">Session</span> <span class="op">=</span> <span class="ident">CookieSession</span>;
<span class="kw">type</span> <span class="ident">ReadFuture</span> <span class="op">=</span> <span class="ident">FutureResult</span><span class="op"><</span><span class="ident">CookieSession</span>, <span class="ident">Error</span><span class="op">></span>;
<span class="kw">fn</span> <span class="ident">from_request</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">req</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">HttpRequest</span><span class="op"><</span><span class="ident">S</span><span class="op">></span>) <span class="op">-></span> <span class="self">Self</span>::<span class="ident">ReadFuture</span> {
<span class="kw">let</span> <span class="ident">state</span> <span class="op">=</span> <span class="self">self</span>.<span class="number">0</span>.<span class="ident">load</span>(<span class="ident">req</span>);
<span class="ident">FutOk</span>(<span class="ident">CookieSession</span> {
<span class="ident">changed</span>: <span class="bool-val">false</span>,
<span class="ident">inner</span>: <span class="ident">Rc</span>::<span class="ident">clone</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="number">0</span>),
<span class="ident">state</span>,
})
}
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
<span class="kw">mod</span> <span class="ident">tests</span> {
<span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>;
<span class="kw">use</span> <span class="ident">application</span>::<span class="ident">App</span>;
<span class="kw">use</span> <span class="ident">test</span>;
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">cookie_session</span>() {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">srv</span> <span class="op">=</span> <span class="ident">test</span>::<span class="ident">TestServer</span>::<span class="ident">with_factory</span>(<span class="op">||</span> {
<span class="ident">App</span>::<span class="ident">new</span>()
.<span class="ident">middleware</span>(<span class="ident">SessionStorage</span>::<span class="ident">new</span>(
<span class="ident">CookieSessionBackend</span>::<span class="ident">signed</span>(<span class="kw-2">&</span>[<span class="number">0</span>; <span class="number">32</span>]).<span class="ident">secure</span>(<span class="bool-val">false</span>),
)).<span class="ident">resource</span>(<span class="string">"/"</span>, <span class="op">|</span><span class="ident">r</span><span class="op">|</span> {
<span class="ident">r</span>.<span class="ident">f</span>(<span class="op">|</span><span class="ident">req</span><span class="op">|</span> {
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">req</span>.<span class="ident">session</span>().<span class="ident">set</span>(<span class="string">"counter"</span>, <span class="number">100</span>);
<span class="string">"test"</span>
})
})
});
<span class="kw">let</span> <span class="ident">request</span> <span class="op">=</span> <span class="ident">srv</span>.<span class="ident">get</span>().<span class="ident">uri</span>(<span class="ident">srv</span>.<span class="ident">url</span>(<span class="string">"/"</span>)).<span class="ident">finish</span>().<span class="ident">unwrap</span>();
<span class="kw">let</span> <span class="ident">response</span> <span class="op">=</span> <span class="ident">srv</span>.<span class="ident">execute</span>(<span class="ident">request</span>.<span class="ident">send</span>()).<span class="ident">unwrap</span>();
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">response</span>.<span class="ident">cookie</span>(<span class="string">"actix-session"</span>).<span class="ident">is_some</span>());
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">cookie_session_extractor</span>() {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">srv</span> <span class="op">=</span> <span class="ident">test</span>::<span class="ident">TestServer</span>::<span class="ident">with_factory</span>(<span class="op">||</span> {
<span class="ident">App</span>::<span class="ident">new</span>()
.<span class="ident">middleware</span>(<span class="ident">SessionStorage</span>::<span class="ident">new</span>(
<span class="ident">CookieSessionBackend</span>::<span class="ident">signed</span>(<span class="kw-2">&</span>[<span class="number">0</span>; <span class="number">32</span>]).<span class="ident">secure</span>(<span class="bool-val">false</span>),
)).<span class="ident">resource</span>(<span class="string">"/"</span>, <span class="op">|</span><span class="ident">r</span><span class="op">|</span> {
<span class="ident">r</span>.<span class="ident">with</span>(<span class="op">|</span><span class="ident">ses</span>: <span class="ident">Session</span><span class="op">|</span> {
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">ses</span>.<span class="ident">set</span>(<span class="string">"counter"</span>, <span class="number">100</span>);
<span class="string">"test"</span>
})
})
});
<span class="kw">let</span> <span class="ident">request</span> <span class="op">=</span> <span class="ident">srv</span>.<span class="ident">get</span>().<span class="ident">uri</span>(<span class="ident">srv</span>.<span class="ident">url</span>(<span class="string">"/"</span>)).<span class="ident">finish</span>().<span class="ident">unwrap</span>();
<span class="kw">let</span> <span class="ident">response</span> <span class="op">=</span> <span class="ident">srv</span>.<span class="ident">execute</span>(<span class="ident">request</span>.<span class="ident">send</span>()).<span class="ident">unwrap</span>();
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">response</span>.<span class="ident">cookie</span>(<span class="string">"actix-session"</span>).<span class="ident">is_some</span>());
}
}
</pre>
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