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diff --git a/docs/en/cowboy/2.12/manual/cowboy_req.parse_cookies/index.html b/docs/en/cowboy/2.12/manual/cowboy_req.parse_cookies/index.html new file mode 100644 index 00000000..add9a948 --- /dev/null +++ b/docs/en/cowboy/2.12/manual/cowboy_req.parse_cookies/index.html @@ -0,0 +1,219 @@ +<!DOCTYPE html> +<html lang="en"> + +<head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1.0"> + <meta name="description" content=""> + <meta name="author" content="Loïc Hoguin based on a design from (Soft10) Pol Cámara"> + + <title>Nine Nines: cowboy_req:parse_cookies(3)</title> + + <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'> + <link href="/css/99s.css?r=7" rel="stylesheet"> + + <link rel="shortcut icon" href="/img/ico/favicon.ico"> + <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png"> + <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png"> + <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png"> + + </head> + + +<body class=""> + <header id="page-head"> + <div id="topbar" class="container"> + <div class="row"> + <div class="span2"> + <h1 id="logo"><a href="/" title="99s">99s</a></h1> + </div> + <div class="span10"> + + <div id="side-header"> + <nav> + <ul> + <li><a title="Hear my thoughts" href="/articles">Articles</a></li> + <li><a title="Watch my talks" href="/talks">Talks</a></li> + <li class="active"><a title="Read the docs" href="/docs">Documentation</a></li> + <li><a title="Request my services" href="/services">Consulting & Training</a></li> + </ul> + </nav> + <ul id="social"> + <li> + <a href="https://github.com/ninenines" title="Check my Github repositories"><img src="/img/ico_github.png" data-hover="/img/ico_github_alt.png" alt="Github"></a> + </li> + <li> + <a title="Contact me" href="mailto:[email protected]"><img src="/img/ico_mail.png" data-hover="/img/ico_mail_alt.png"></a> + </li> + </ul> + </div> + </div> + </div> + </div> + + +</header> + +<div id="contents" class="two_col"> +<div class="container"> +<div class="row"> +<div id="docs" class="span9 maincol"> + +<h1 class="lined-header"><span>cowboy_req:parse_cookies(3)</span></h1> + +<h2 id="_name">Name</h2> +<p>cowboy_req:parse_cookies - Parse cookie headers</p> +<h2 id="_description">Description</h2> +<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_cookies</font></b>(<font color="#009900">Req</font>) <font color="#990000">-></font> [{<font color="#009900">Name</font>, <font color="#009900">Value</font>}] + +<font color="#009900">Name</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case sensitive</font></i> +<font color="#009900">Value</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case sensitive</font></i></tt></pre> +</div></div> +<p>Parse cookie headers.</p> +<p>Alias for <a href="../cowboy_req.parse_header">cowboy_req:parse_header(<<"cookie">>, Req)</a>.</p> +<p>When the cookie header is missing or empty, <code>[]</code> is returned.</p> +<p>This function will crash on invalid cookie data. Because invalid cookies are fairly common when dealing with browsers (because of the string interface that the Javascript API provides), it is recommended to filter the cookie header value before attempting to parse it. This can be accomplished by calling the function <a href="../cowboy_req.filter_cookies">cowboy_req:filter_cookies(3)</a> first. This does not guarantee that parsing succeeds. If it still fails it is recommended to send an error response or redirect with instructions to delete the relevant cookies:</p> +<div class="listingblock"><div class="title">Recover from cookie parsing errors</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><font color="#009900">Req1</font> <font color="#990000">=</font> <b><font color="#000000">cowboy_req:filter_cookies</font></b>([<font color="#FF6600">session_id</font>, <font color="#FF6600">token</font>], <font color="#009900">Req0</font>), +<b><font color="#0000FF">try</font></b> <b><font color="#000000">cowboy_req:parse_cookies</font></b>(<font color="#009900">Req1</font>) <b><font color="#0000FF">of</font></b> + <font color="#009900">Cookies</font> <font color="#990000">-></font> + <b><font color="#000000">do_something</font></b>(<font color="#009900">Req1</font>, <font color="#009900">Cookies</font>) +<b><font color="#0000FF">catch</font></b> <font color="#990000">_:_</font> <font color="#990000">-></font> + <i><font color="#9A1900">%% We can't parse the cookies we need, unset them</font></i> + <i><font color="#9A1900">%% otherwise the browser will continue sending them.</font></i> + <font color="#009900">Req2</font> <font color="#990000">=</font> <b><font color="#000000">cowboy_req:set_resp_cookie</font></b>(<font color="#990000"><<</font><font color="#FF0000">"session_id"</font><font color="#990000">>></font>, + <font color="#990000"><<>></font>, <font color="#009900">Req1</font>, #{<font color="#0000FF">max_age</font> <font color="#990000">=></font> <font color="#993399">0</font>}), + <font color="#009900">Req</font> <font color="#990000">=</font> <b><font color="#000000">cowboy_req:set_resp_cookie</font></b>(<font color="#990000"><<</font><font color="#FF0000">"token"</font><font color="#990000">>></font>, + <font color="#990000"><<>></font>, <font color="#009900">Req2</font>, #{<font color="#0000FF">max_age</font> <font color="#990000">=></font> <font color="#993399">0</font>}), + <b><font color="#000000">cowboy_req:reply</font></b>(<font color="#993399">500</font>, <font color="#009900">Req</font>) +<b><font color="#0000FF">end</font></b><font color="#990000">.</font></tt></pre> +</div></div> +<h2 id="_arguments">Arguments</h2> +<dl><dt>Req</dt> +<dd><p>The Req object.</p> +</dd> +</dl> +<h2 id="_return_value">Return value</h2> +<p>The cookies are returned as a list of key/values. Keys and values are case sensitive binary strings.</p> +<h2 id="_changelog">Changelog</h2> +<ul><li><strong>2.0</strong>: Only the parsed header value is returned, it is no longer wrapped in a tuple. +</li> +<li><strong>2.0</strong>: Function introduced. Replaces <code>cookie/2,3</code> and <code>cookies/1</code>. +</li> +</ul> +<h2 id="_examples">Examples</h2> +<div class="listingblock"><div class="title">Look for a specific cookie</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><font color="#009900">Cookies</font> <font color="#990000">=</font> <b><font color="#000000">cowboy_req:parse_cookies</font></b>(<font color="#009900">Req</font>), +{<font color="#990000">_</font>, <font color="#009900">Token</font>} <font color="#990000">=</font> <b><font color="#000000">lists:keyfind</font></b>(<font color="#990000"><<</font><font color="#FF0000">"token"</font><font color="#990000">>></font>, <font color="#993399">1</font>, <font color="#009900">Cookies</font>)<font color="#990000">.</font></tt></pre> +</div></div> +<h2 id="_see_also">See also</h2> +<p><a href="../cowboy_req">cowboy_req(3)</a>, <a href="../cowboy_req.parse_header">cowboy_req:parse_header(3)</a>, <a href="../cowboy_req.filter_cookies">cowboy_req:filter_cookies(3)</a>, <a href="../cowboy_req.match_cookies">cowboy_req:match_cookies(3)</a></p> + + + + + + +</div> + +<div class="span3 sidecol"> + + +<h3> + Cowboy + 2.12 + Function Reference + +</h3> + +<ul> + + <li><a href="/docs/en/cowboy/2.12/guide">User Guide</a></li> + + + <li><a href="/docs/en/cowboy/2.12/manual">Function Reference</a></li> + + +</ul> + +<h4 id="docs-nav">Navigation</h4> + +<h4>Version select</h4> +<ul> + + + + <li><a href="/docs/en/cowboy/2.12/manual">2.12</a></li> + + <li><a href="/docs/en/cowboy/2.11/manual">2.11</a></li> + + <li><a href="/docs/en/cowboy/2.10/manual">2.10</a></li> + + <li><a href="/docs/en/cowboy/2.9/manual">2.9</a></li> + + <li><a href="/docs/en/cowboy/2.8/manual">2.8</a></li> + + <li><a href="/docs/en/cowboy/2.7/manual">2.7</a></li> + + <li><a href="/docs/en/cowboy/2.6/manual">2.6</a></li> + +</ul> + +<h3 id="_like_my_work__donate">Like my work? 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