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<!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="API documentation for the Rust `CookieSessionBackend` struct in crate `actix_web`."><meta name="keywords" content="rust, rustlang, rust-lang, CookieSessionBackend"><title>actix_web::middleware::session::CookieSessionBackend - Rust</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 struct"><!--[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><p class='location'>Struct CookieSessionBackend</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.signed">signed</a><a href="#method.private">private</a><a href="#method.path">path</a><a href="#method.name">name</a><a href="#method.domain">domain</a><a href="#method.secure">secure</a><a href="#method.same_site">same_site</a><a href="#method.max_age">max_age</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-Send">!Send</a><a href="#impl-Sync">!Sync</a></div></div><p class='location'><a href='../../index.html'>actix_web</a>::<wbr><a href='../index.html'>middleware</a>::<wbr><a href='index.html'>session</a></p><script>window.sidebarCurrent = {name: 'CookieSessionBackend', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></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"><h1 class='fqn'><span class='in-band'>Struct <a href='../../index.html'>actix_web</a>::<wbr><a href='../index.html'>middleware</a>::<wbr><a href='index.html'>session</a>::<wbr><a class="struct" href=''>CookieSessionBackend</a></span><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#485' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust struct'>pub struct CookieSessionBackend(_);</pre></div><div class='docblock'><p>Use cookies for session storage.</p>
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<p><code>CookieSessionBackend</code> creates sessions which are limited to storing
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fewer than 4000 bytes of data (as the payload must fit into a single
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cookie). An Internal Server Error is generated if the session contains more
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than 4000 bytes.</p>
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<p>A cookie may have a security policy of <em>signed</em> or <em>private</em>. Each has a
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respective <code>CookieSessionBackend</code> constructor.</p>
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<p>A <em>signed</em> cookie is stored on the client as plaintext alongside
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a signature such that the cookie may be viewed but not modified by the
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client.</p>
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<p>A <em>private</em> cookie is stored on the client as encrypted text
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such that it may neither be viewed nor modified by the client.</p>
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<p>The constructors take a key as an argument.
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This is the private key for cookie session - when this value is changed,
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all session data is lost. The constructors will panic if the key is less
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than 32 bytes in length.</p>
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<p>The backend relies on <code>cookie</code> crate to create and read cookies.
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By default all cookies are percent encoded, but certain symbols may
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cause troubles when reading cookie, if they are not properly percent encoded.</p>
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<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
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<pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">actix_web</span>::<span class="ident">middleware</span>::<span class="ident">session</span>::<span class="ident">CookieSessionBackend</span>;
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<span class="kw">let</span> <span class="ident">backend</span>: <span class="ident">CookieSessionBackend</span> <span class="op">=</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>])
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.<span class="ident">domain</span>(<span class="string">"www.rust-lang.org"</span>)
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.<span class="ident">name</span>(<span class="string">"actix_session"</span>)
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.<span class="ident">path</span>(<span class="string">"/"</span>)
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.<span class="ident">secure</span>(<span class="bool-val">true</span>);</pre>
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</div>
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<h2 id='methods' class='small-section-header'>
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Methods<a href='#methods' class='anchor'></a>
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</h2>
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<h3 id='impl' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="struct" href="../../../actix_web/middleware/session/struct.CookieSessionBackend.html" title="struct actix_web::middleware::session::CookieSessionBackend">CookieSessionBackend</a></code><a href='#impl' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#487-546' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.signed' class="method"><span id='signed.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.signed' class='fnname'>signed</a>(key: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>) -> <a class="struct" href="../../../actix_web/middleware/session/struct.CookieSessionBackend.html" title="struct actix_web::middleware::session::CookieSessionBackend">CookieSessionBackend</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#491-496' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Construct new <em>signed</em> <code>CookieSessionBackend</code> instance.</p>
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<p>Panics if key length is less than 32 bytes.</p>
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</div><h4 id='method.private' class="method"><span id='private.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.private' class='fnname'>private</a>(key: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>) -> <a class="struct" href="../../../actix_web/middleware/session/struct.CookieSessionBackend.html" title="struct actix_web::middleware::session::CookieSessionBackend">CookieSessionBackend</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#501-506' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Construct new <em>private</em> <code>CookieSessionBackend</code> instance.</p>
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<p>Panics if key length is less than 32 bytes.</p>
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</div><h4 id='method.path' class="method"><span id='path.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.path' class='fnname'>path</a><S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>>>(self, value: S) -> <a class="struct" href="../../../actix_web/middleware/session/struct.CookieSessionBackend.html" title="struct actix_web::middleware::session::CookieSessionBackend">CookieSessionBackend</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#509-512' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Sets the <code>path</code> field in the session cookie being built.</p>
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</div><h4 id='method.name' class="method"><span id='name.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.name' class='fnname'>name</a><S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>>>(self, value: S) -> <a class="struct" href="../../../actix_web/middleware/session/struct.CookieSessionBackend.html" title="struct actix_web::middleware::session::CookieSessionBackend">CookieSessionBackend</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#515-518' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Sets the <code>name</code> field in the session cookie being built.</p>
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</div><h4 id='method.domain' class="method"><span id='domain.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.domain' class='fnname'>domain</a><S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>>>(self, value: S) -> <a class="struct" href="../../../actix_web/middleware/session/struct.CookieSessionBackend.html" title="struct actix_web::middleware::session::CookieSessionBackend">CookieSessionBackend</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#521-524' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Sets the <code>domain</code> field in the session cookie being built.</p>
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</div><h4 id='method.secure' class="method"><span id='secure.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.secure' class='fnname'>secure</a>(self, value: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -> <a class="struct" href="../../../actix_web/middleware/session/struct.CookieSessionBackend.html" title="struct actix_web::middleware::session::CookieSessionBackend">CookieSessionBackend</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#530-533' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Sets the <code>secure</code> field in the session cookie being built.</p>
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<p>If the <code>secure</code> field is set, a cookie will only be transmitted when the
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connection is secure - i.e. <code>https</code></p>
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</div><h4 id='method.same_site' class="method"><span id='same_site.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.same_site' class='fnname'>same_site</a>(self, value: <a class="enum" href="https://docs.rs/cookie/0.10/cookie/draft/enum.SameSite.html" title="enum cookie::draft::SameSite">SameSite</a>) -> <a class="struct" href="../../../actix_web/middleware/session/struct.CookieSessionBackend.html" title="struct actix_web::middleware::session::CookieSessionBackend">CookieSessionBackend</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#536-539' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Sets the <code>same_site</code> field in the session cookie being built.</p>
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</div><h4 id='method.max_age' class="method"><span id='max_age.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.max_age' class='fnname'>max_age</a>(self, value: <a class="struct" href="https://doc.rust-lang.org/time/time/duration/struct.Duration.html" title="struct time::duration::Duration">Duration</a>) -> <a class="struct" href="../../../actix_web/middleware/session/struct.CookieSessionBackend.html" title="struct actix_web::middleware::session::CookieSessionBackend">CookieSessionBackend</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#542-545' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Sets the <code>max-age</code> field in the session cookie being built.</p>
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</div></div>
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<h2 id='synthetic-implementations' class='small-section-header'>
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Auto Trait Implementations<a href='#synthetic-implementations' class='anchor'></a>
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</h2>
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<div id='synthetic-implementations-list'>
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<h3 id='impl-Send' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl !<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="../../../actix_web/middleware/session/struct.CookieSessionBackend.html" title="struct actix_web::middleware::session::CookieSessionBackend">CookieSessionBackend</a></code><a href='#impl-Send' class='anchor'></a></span></td><td><span class='out-of-band'></span></td></tr></tbody></table></h3><div class='impl-items'></div><h3 id='impl-Sync' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl !<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="../../../actix_web/middleware/session/struct.CookieSessionBackend.html" title="struct actix_web::middleware::session::CookieSessionBackend">CookieSessionBackend</a></code><a href='#impl-Sync' class='anchor'></a></span></td><td><span class='out-of-band'></span></td></tr></tbody></table></h3><div class='impl-items'></div></div></section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>⏎</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g. <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g. <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g. <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../../../";window.currentCrate = "actix_web";</script><script src="../../../aliases.js"></script><script src="../../../main.js"></script><script defer src="../../../search-index.js"></script></body></html> |