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author | Loïc Hoguin <[email protected]> | 2018-05-02 11:35:26 +0200 |
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committer | Loïc Hoguin <[email protected]> | 2018-05-02 11:35:26 +0200 |
commit | fec98300ec9af6c8b5f3120a60f217983c451076 (patch) | |
tree | 9772977293124e8b9b5b253e44d8c2695cddfb44 /docs/en/cowboy/2.4/guide/migrating_from_2.1 | |
parent | bfd2b6e01cbb36b0be0b3c860f5baf8d5b49fe7a (diff) | |
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Cowboy 2.4.0
Diffstat (limited to 'docs/en/cowboy/2.4/guide/migrating_from_2.1')
-rw-r--r-- | docs/en/cowboy/2.4/guide/migrating_from_2.1/index.html | 363 |
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diff --git a/docs/en/cowboy/2.4/guide/migrating_from_2.1/index.html b/docs/en/cowboy/2.4/guide/migrating_from_2.1/index.html new file mode 100644 index 00000000..937a559a --- /dev/null +++ b/docs/en/cowboy/2.4/guide/migrating_from_2.1/index.html @@ -0,0 +1,363 @@ +<!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 0.37.1" /> + + <title>Nine Nines: Migrating from Cowboy 2.1 to 2.2</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="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>Migrating from Cowboy 2.1 to 2.2</span></h1> + +<div class="paragraph"><p>Cowboy 2.2 focused on adding features required for writing +gRPC servers and on completing test suites for the core +HTTP RFCs, fixing many bugs along the way.</p></div> +<div class="sect1"> +<h2 id="_features_added">Features added</h2> +<div class="sectionbody"> +<div class="ulist"><ul> +<li> +<p> +Add support for sending trailers at the end of response bodies. + Trailers are additional header fields that may be sent after the + body to add more information to the response. Their usage is + required in gRPC servers. They are optional and may be discarded + in other scenarios (for example if the request goes through an + HTTP/1.0 proxy, as HTTP/1.0 does not support trailers). +</p> +</li> +<li> +<p> +The <code>max_skip_body_length</code> option was added to <code>cowboy_http</code>. + It controls how much of a request body Cowboy is willing to skip + when the handler did not touch it. If the remaining body size is + too large Cowboy instead closes the connection. It defaults to 1MB. +</p> +</li> +<li> +<p> +The CONNECT and TRACE methods are now rejected as they are + currently not implemented and must be handled differently than + other methods. They will be implemented in a future release. +</p> +</li> +</ul></div> +</div> +</div> +<div class="sect1"> +<h2 id="_new_functions">New functions</h2> +<div class="sectionbody"> +<div class="ulist"><ul> +<li> +<p> +The function <code>stream_trailers/2</code> has been added. It terminates + a stream and adds trailer fields at the end of the response. A + corresponding stream handler command <code>{trailers, Trailers}</code> + has also been added. +</p> +</li> +</ul></div> +</div> +</div> +<div class="sect1"> +<h2 id="_bugs_fixed">Bugs fixed</h2> +<div class="sectionbody"> +<div class="ulist"><ul> +<li> +<p> +Test suites for the core HTTP RFCs RFC7230, RFC7231 and RFC7540 + have been completed. Many of the bugs listed here were fixed as + a result of this work. +</p> +</li> +<li> +<p> +Many HTTP/2 edge cases when clients are misbehaving have been + corrected. This includes many cases where the request is malformed + (for example when a pseudo-header is present twice). +</p> +</li> +<li> +<p> +When the HTTP/2 SETTINGS_INITIAL_WINDOW_SIZE value changes, + Cowboy now properly updates the flow control windows. +</p> +</li> +<li> +<p> +HTTP/2 could mistakenly log stray messages that actually were + expected. This is no longer the case. +</p> +</li> +<li> +<p> +We no longer send a GOAWAY frame when the HTTP/2 preface is invalid. +</p> +</li> +<li> +<p> +Some values in the Req object of pushed requests were in the + wrong type. They are now the expected binary instead of iolist. +</p> +</li> +<li> +<p> +A response body was sometimes sent in response to HEAD requests + when using HTTP/2. The body is now ignored. +</p> +</li> +<li> +<p> +The <code>max_headers</code> option for <code>cowboy_http</code> was not always respected + depending on the contents of the buffer. The limit is now strict. +</p> +</li> +<li> +<p> +When an early error occurred on the HTTP/1.1 request line, the + partial Req given to stream handlers was missing the <code>ref</code> and + <code>peer</code> information. This has been corrected. +</p> +</li> +<li> +<p> +Absolute URIs with a userinfo component, or without an authority + component, are now properly rejected for HTTP/1.0 and HTTP/1.1. +</p> +</li> +<li> +<p> +Whitespace is no longer allowed in header lines before the colon. +</p> +</li> +<li> +<p> +408 responses to HTTP/1.1 requests now properly include a + connection: close header indicating that we are going to + close the connection. This header will also be sent for + other early errors resulting in the closing of the connection. +</p> +</li> +<li> +<p> +When both the transfer-encoding and content-length headers are + sent in an HTTP/1.1 request, the transfer-encoding now takes + precedence over the content-length header and the latter is + removed from the Req object. +</p> +</li> +<li> +<p> +A 400 response is now returned when the transfer-encoding + header is invalid or contains any transfer-coding other + than chunked. +</p> +</li> +<li> +<p> +Invalid chunk sizes are now rejected immediately. +</p> +</li> +<li> +<p> +Chunk extensions are now limited to 129 characters. They are + not used in practice and are still ignored by Cowboy. The limit + is not configurable. +</p> +</li> +<li> +<p> +The final chunk was mistakenly sent in responses to HEAD + requests. This is now corrected. +</p> +</li> +<li> +<p> +<code>OPTIONS *</code> requests were broken in Cowboy 2.0. They are now + working again. Both the routing and <code>cowboy_req:uri/1,2</code> have + been corrected. +</p> +</li> +<li> +<p> +204 responses no longer include a content-length header. +</p> +</li> +<li> +<p> +A packet could be lost when switching to Websocket or any + other protocol via the <code>switch_protocol</code> command. This is + now fixed. +</p> +</li> +<li> +<p> +A 426 response will now be sent when a handler requires + the client to upgrade to Websocket and the request did not + include the required headers. +</p> +</li> +<li> +<p> +Both experimental stream handlers <code>cowboy_metrics_h</code> and + <code>cowboy_tracer_h</code> received a number of fixes and improvements. +</p> +</li> +</ul></div> +</div> +</div> + + + + + + + + + + + <nav style="margin:1em 0"> + + <a style="float:left" href="https://ninenines.eu/docs/en/cowboy/2.4/guide/migrating_from_2.2/"> + Migrating from Cowboy 2.2 to 2.3 + </a> + + + + <a style="float:right" href="https://ninenines.eu/docs/en/cowboy/2.4/guide/migrating_from_2.0/"> + Migrating from Cowboy 2.0 to 2.1 + </a> + + </nav> + + + + +</div> + +<div class="span3 sidecol"> + + +<h3> + Cowboy + 2.4 + + User Guide +</h3> + +<ul> + + <li><a href="/docs/en/cowboy/2.4/guide">User Guide</a></li> + + + <li><a href="/docs/en/cowboy/2.4/manual">Function Reference</a></li> + + +</ul> + +<h4 id="docs-nav">Navigation</h4> + +<h4>Version select</h4> +<ul> + + + + <li><a href="/docs/en/cowboy/2.4/guide">2.4</a></li> + + <li><a href="/docs/en/cowboy/2.3/guide">2.3</a></li> + + <li><a href="/docs/en/cowboy/2.2/guide">2.2</a></li> + + <li><a href="/docs/en/cowboy/2.1/guide">2.1</a></li> + + <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 2012-2018</p> + </div> + </div> + </div> + </footer> + + + <script src="/js/custom.js"></script> + </body> +</html> + + |