diff options
Diffstat (limited to 'docs/en/cowboy/2.0/guide/broken_clients/index.html')
-rw-r--r-- | docs/en/cowboy/2.0/guide/broken_clients/index.html | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/docs/en/cowboy/2.0/guide/broken_clients/index.html b/docs/en/cowboy/2.0/guide/broken_clients/index.html deleted file mode 100644 index 41e8d59f..00000000 --- a/docs/en/cowboy/2.0/guide/broken_clients/index.html +++ /dev/null @@ -1,203 +0,0 @@ -<!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"> - - <meta name="generator" content="Hugo 0.17" /> - - <title>Nine Nines: Dealing with broken clients</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=1" 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="Keep in touch!" href="http://twitter.com/lhoguin"><img src="/img/ico_microblog.png" data-hover="/img/ico_microblog_alt.png"></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>Dealing with broken clients</span></h1> - -<div class="paragraph"><p>There exists a very large number of implementations for the
-HTTP protocol. Most widely used clients, like browsers,
-follow the standard quite well, but others may not. In
-particular custom enterprise clients tend to be very badly
-written.</p></div>
-<div class="paragraph"><p>Cowboy tries to follow the standard as much as possible,
-but is not trying to handle every possible special cases.
-Instead Cowboy focuses on the cases reported in the wild,
-on the public Web.</p></div>
-<div class="paragraph"><p>That means clients that ignore the HTTP standard completely
-may fail to understand Cowboy’s responses. There are of
-course workarounds. This chapter aims to cover them.</p></div>
-<div class="sect1">
-<h2 id="_lowercase_headers">Lowercase headers</h2>
-<div class="sectionbody">
-<div class="paragraph"><p>Cowboy converts all headers it receives to lowercase, and
-similarly sends back headers all in lowercase. Some broken
-HTTP clients have issues with that.</p></div>
-<div class="paragraph"><p>A simple way to solve this is to create an <code>onresponse</code> hook
-that will format the header names with the expected case.</p></div>
-<div class="listingblock">
-<div class="content"><!-- Generator: GNU source-highlight 3.1.8
-by Lorenzo Bettini
-http://www.lorenzobettini.it
-http://www.gnu.org/software/src-highlite -->
-<pre><tt><span style="font-weight: bold"><span style="color: #000000">capitalize_hook</span></span>(<span style="color: #009900">Status</span>, <span style="color: #009900">Headers</span>, <span style="color: #009900">Body</span>, <span style="color: #009900">Req</span>) <span style="color: #990000">-></span>
- <span style="color: #009900">Headers2</span> <span style="color: #990000">=</span> [{<span style="font-weight: bold"><span style="color: #000000">cowboy_bstr:capitalize_token</span></span>(<span style="color: #009900">N</span>), <span style="color: #009900">V</span>}
- || {<span style="color: #009900">N</span>, <span style="color: #009900">V</span>} <span style="color: #990000"><-</span> <span style="color: #009900">Headers</span>],
- <span style="font-weight: bold"><span style="color: #000000">cowboy_req:reply</span></span>(<span style="color: #009900">Status</span>, <span style="color: #009900">Headers2</span>, <span style="color: #009900">Body</span>, <span style="color: #009900">Req</span>)<span style="color: #990000">.</span></tt></pre></div></div>
-<div class="paragraph"><p>Note that HTTP/2 clients do not have that particular issue
-because the specification explicitly says all headers are
-lowercase, unlike HTTP which allows any case but treats
-them as case insensitive.</p></div>
-</div>
-</div>
-<div class="sect1">
-<h2 id="_camel_case_headers">Camel-case headers</h2>
-<div class="sectionbody">
-<div class="paragraph"><p>Sometimes it is desirable to keep the actual case used by
-clients, for example when acting as a proxy between two broken
-implementations. There is no easy solution for this other than
-forking the project and editing the <code>cowboy_protocol</code> file
-directly.</p></div>
-</div>
-</div>
- - - - - - - - <nav style="margin:1em 0"> - - <a style="float:left" href="https://ninenines.eu/docs/en/cowboy/2.0/guide/architecture/"> - Architecture - </a> - - - - <a style="float:right" href="https://ninenines.eu/docs/en/cowboy/2.0/guide/hooks/"> - Hooks - </a> - - </nav> - - - - -</div> - -<div class="span3 sidecol"> - - -<h3> - Cowboy - 2.0 - - User Guide -</h3> - -<ul> - - <li><a href="/docs/en/cowboy/2.0/guide">User Guide</a></li> - - - <li><a href="/docs/en/cowboy/2.0/manual">Function Reference</a></li> - - -</ul> - -<h4 id="docs-nav">Navigation</h4> - -<h4>Version select</h4> -<ul> - - - - <li><a href="/docs/en/cowboy/2.0/guide">2.0</a></li> - - <li><a href="/docs/en/cowboy/1.0/guide">1.0</a></li> - -</ul> - -</div> -</div> -</div> -</div> - - <footer> - <div class="container"> - <div class="row"> - <div class="span6"> - <p id="scroll-top"><a href="#">↑ Scroll to top</a></p> - <nav> - <ul> - <li><a href="mailto:[email protected]" title="Contact us">Contact us</a></li><li><a href="https://github.com/ninenines/ninenines.github.io" title="Github repository">Contribute to this site</a></li> - </ul> - </nav> - </div> - <div class="span6 credits"> - <p><img src="/img/footer_logo.png"></p> - <p>Copyright © Loïc Hoguin 2012-2016</p> - </div> - </div> - </div> - </footer> - - - <script src="/js/custom.js"></script> - </body> -</html> - - |