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fix(docs) fix html linter issues in the docs (#358)

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Thijs Schreijer
2022-03-22 19:21:58 +01:00
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commit f97dc8489d
11 changed files with 938 additions and 934 deletions
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doc/http.html
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@ -1,10 +1,10 @@
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta name="description" content="LuaSocket: HTTP support">
<meta name="keywords" content="Lua, HTTP, Library, WWW, Browser, Network, Support">
<meta name="keywords" content="Lua, HTTP, Library, WWW, Browser, Network, Support">
<title>LuaSocket: HTTP support</title>
<link rel="stylesheet" href="reference.css" type="text/css">
</head>
@ -13,22 +13,22 @@
<!-- header ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
<div class=header>
<div class="header">
<hr>
<center>
<table summary="LuaSocket logo">
<tr><td align=center><a href="http://www.lua.org">
<img width=128 height=128 border=0 alt="LuaSocket" src="luasocket.png">
<tr><td align="center"><a href="http://www.lua.org">
<img width="128" height="128" border="0" alt="LuaSocket" src="luasocket.png">
</a></td></tr>
<tr><td align=center valign=top>Network support for the Lua language
<tr><td align="center" valign="top">Network support for the Lua language
</td></tr>
</table>
<p class=bar>
<p class="bar">
<a href="index.html">home</a> &middot;
<a href="index.html#download">download</a> &middot;
<a href="introduction.html">introduction</a> &middot;
<a href="introduction.html">introduction</a> &middot;
<a href="reference.html">reference</a>
<a href="reference.html">reference</a>
</p>
</center>
<hr>
@ -36,12 +36,12 @@
<!-- http +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
<h2 id="http">HTTP</h2>
<h2 id="http">HTTP</h2>
<p>
HTTP (Hyper Text Transfer Protocol) is the protocol used to exchange
information between web-browsers and servers. The <tt>http</tt>
namespace offers full support for the client side of the HTTP
namespace offers full support for the client side of the HTTP
protocol (i.e.,
the facilities that would be used by a web-browser implementation). The
implementation conforms to the HTTP/1.1 standard,
@ -50,16 +50,16 @@ implementation conforms to the HTTP/1.1 standard,
<p>
The module exports functions that provide HTTP functionality in different
levels of abstraction. From the simple
levels of abstraction. From the simple
string oriented requests, through generic
<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> based, down to even lower-level if you bother to look through the source code.
</p>
<p>
<p>
To obtain the <tt>http</tt> namespace, run:
</p>
<pre class=example>
<pre class="example">
-- loads the HTTP module and any libraries it requires
local http = require("socket.http")
</pre>
@ -67,12 +67,12 @@ local http = require("socket.http")
<p>
URLs must conform to
<a href="http://www.ietf.org/rfc/rfc1738.txt">RFC 1738</a>,
that is, an URL is a string in the form:
that is, an URL is a string in the form:
</p>
<blockquote>
<pre>
[http://][&lt;user&gt;[:&lt;password&gt;]@]&lt;host&gt;[:&lt;port&gt;][/&lt;path&gt;]
[http://][&lt;user&gt;[:&lt;password&gt;]@]&lt;host&gt;[:&lt;port&gt;][/&lt;path&gt;]
</pre>
</blockquote>
@ -97,34 +97,34 @@ headers = {<br>
<p>
Field names are case insensitive (as specified by the standard) and all
functions work with lowercase field names (but see
<a href=socket.html#headers.canonic><tt>socket.headers.canonic</tt></a>).
<a href="socket.html#headers.canonic"><tt>socket.headers.canonic</tt></a>).
Field values are left unmodified.
</p>
<p class=note>
<p class="note">
Note: MIME headers are independent of order. Therefore, there is no problem
in representing them in a Lua table.
in representing them in a Lua table.
</p>
<p>
The following constants can be set to control the default behavior of
the HTTP module:
the HTTP module:
</p>
<ul>
<li> <tt>PROXY</tt>: default proxy used for connections;
<li> <tt>TIMEOUT</tt>: sets the timeout for all I/O operations;
<li> <tt>USERAGENT</tt>: default user agent reported to server.
<li> <tt>PROXY</tt>: default proxy used for connections;</li>
<li> <tt>TIMEOUT</tt>: sets the timeout for all I/O operations;</li>
<li> <tt>USERAGENT</tt>: default user agent reported to server.</li>
</ul>
<p class=note id="post">
<p class="note">
Note: These constants are global. Changing them will also
change the behavior other code that might be using LuaSocket.
</p>
<!-- http.request ++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
<p class=name id="request">
<p class="name" id="request">
http.<b>request(</b>url [, body]<b>)</b><br>
http.<b>request{</b><br>
&nbsp;&nbsp;url = <i>string</i>,<br>
@ -140,26 +140,26 @@ http.<b>request{</b><br>
<b>}</b>
</p>
<p class=description>
The request function has two forms. The simple form downloads
a URL using the <tt>GET</tt> or <tt>POST</tt> method and is based
on strings. The generic form performs any HTTP method and is
<a href=http://lua-users.org/wiki/FiltersSourcesAndSinks>LTN12</a> based.
<p class="description">
The request function has two forms. The simple form downloads
a URL using the <tt>GET</tt> or <tt>POST</tt> method and is based
on strings. The generic form performs any HTTP method and is
<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> based.
</p>
<p class=parameters>
<p class="parameters">
If the first argument of the <tt>request</tt> function is a string, it
should be an <tt>url</tt>. In that case, if a <tt>body</tt>
is provided as a string, the function will perform a <tt>POST</tt> method
in the <tt>url</tt>. Otherwise, it performs a <tt>GET</tt> in the
<tt>url</tt>
<tt>url</tt>
</p>
<p class=parameters>
If the first argument is instead a table, the most important fields are
<p class="parameters">
If the first argument is instead a table, the most important fields are
the <tt>url</tt> and the <em>simple</em>
<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
<tt>sink</tt> that will receive the downloaded content.
<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
<tt>sink</tt> that will receive the downloaded content.
Any part of the <tt>url</tt> can be overridden by including
the appropriate field in the request table.
If authentication information is provided, the function
@ -169,49 +169,51 @@ function discards the downloaded data. The optional parameters are the
following:
</p>
<ul>
<li><tt>method</tt>: The HTTP request method. Defaults to "GET";
<li><tt>headers</tt>: Any additional HTTP headers to send with the request;
<li><tt>source</tt>: <em>simple</em>
<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
<li><tt>method</tt>: The HTTP request method. Defaults to "GET";</li>
<li><tt>headers</tt>: Any additional HTTP headers to send with the request;</li>
<li><tt>source</tt>: <em>simple</em>
<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
source to provide the request body. If there
is a body, you need to provide an appropriate "<tt>content-length</tt>"
request header field, or the function will attempt to send the body as
"<tt>chunked</tt>" (something few servers support). Defaults to the empty source;
<li><tt>step</tt>:
<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
pump step function used to move data.
Defaults to the LTN12 <tt>pump.step</tt> function.
<li><tt>proxy</tt>: The URL of a proxy server to use. Defaults to no proxy;
<li><tt>redirect</tt>: Set to <tt><b>false</b></tt> to prevent the
function from automatically following 301 or 302 server redirect messages;
"<tt>chunked</tt>" (something few servers support). Defaults to the empty source;</li>
<li><tt>step</tt>:
<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
pump step function used to move data.
Defaults to the LTN12 <tt>pump.step</tt> function.</li>
<li><tt>proxy</tt>: The URL of a proxy server to use. Defaults to no proxy;</li>
<li><tt>redirect</tt>: Set to <tt><b>false</b></tt> to prevent the
function from automatically following 301 or 302 server redirect messages;</li>
<li><tt>create</tt>: An optional function to be used instead of
<a href=tcp.html#socket.tcp><tt>socket.tcp</tt></a> when the communications socket is created.
<li><tt>maxredirects</tt>: An optional number specifying the maximum number of redirects to follow. Defaults to <tt>5</tt> if not specified. A boolean <tt>false</tt> value means no maximum (unlimited).
<a href="tcp.html#socket.tcp"><tt>socket.tcp</tt></a> when the communications socket is created.</li>
<li><tt>maxredirects</tt>: An optional number specifying the maximum number of
redirects to follow. Defaults to <tt>5</tt> if not specified. A boolean
<tt>false</tt> value means no maximum (unlimited).</li>
</ul>
<p class=return>
<p class="return">
In case of failure, the function returns <tt><b>nil</b></tt> followed by an
error message. If successful, the simple form returns the response
error message. If successful, the simple form returns the response
body as a string, followed by the response status code, the response
headers and the response status line. The generic function returns the same
information, except the first return value is just the number 1 (the body
goes to the <tt>sink</tt>).
</p>
<p class=return>
Even when the server fails to provide the contents of the requested URL (URL not found, for example),
<p class="return">
Even when the server fails to provide the contents of the requested URL (URL not found, for example),
it usually returns a message body (a web page informing the
URL was not found or some other useless page). To make sure the
operation was successful, check the returned status <tt>code</tt>. For
a list of the possible values and their meanings, refer to <a
href="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616</a>.
href="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616</a>.
</p>
<p class=description>
<p class="description">
Here are a few examples with the simple interface:
</p>
<pre class=example>
<pre class="example">
-- load the http module
local io = require("io")
local http = require("socket.http")
@ -219,15 +221,15 @@ local ltn12 = require("ltn12")
-- connect to server "www.cs.princeton.edu" and retrieves this manual
-- file from "~diego/professional/luasocket/http.html" and print it to stdout
http.request{
url = "http://www.cs.princeton.edu/~diego/professional/luasocket/http.html",
http.request{
url = "http://www.cs.princeton.edu/~diego/professional/luasocket/http.html",
sink = ltn12.sink.file(io.stdout)
}
-- connect to server "www.example.com" and tries to retrieve
-- "/private/index.html". Fails because authentication is needed.
b, c, h = http.request("http://www.example.com/private/index.html")
-- b returns some useless page telling about the denied access,
-- b returns some useless page telling about the denied access,
-- h returns authentication information
-- and c returns with value 401 (Authentication Required)
@ -237,11 +239,11 @@ r, e = http.request("http://wrong.host/")
-- r is nil, and e returns with value "host not found"
</pre>
<p class=description>
<p class="description">
And here is an example using the generic interface:
</p>
<pre class=example>
<pre class="example">
-- load the http module
http = require("socket.http")
@ -263,7 +265,7 @@ r, c, h = http.request {
-- }
</pre>
<p class=note id="post">
<p class="note" id="post">
Note: When sending a POST request, simple interface adds a
"<tt>Content-type: application/x-www-form-urlencoded</tt>"
header to the request. This is the type used by
@ -271,21 +273,21 @@ HTML forms. If you need another type, use the generic
interface.
</p>
<p class=note id="authentication">
<p class="note" id="authentication">
Note: Some URLs are protected by their
servers from anonymous download. For those URLs, the server must receive
some sort of authentication along with the request or it will deny
download and return status "401&nbsp;Authentication Required".
download and return status "401&nbsp;Authentication Required".
</p>
<p class=note>
<p class="note">
The HTTP/1.1 standard defines two authentication methods: the Basic
Authentication Scheme and the Digest Authentication Scheme, both
explained in detail in
<a href="http://www.ietf.org/rfc/rfc2068.txt">RFC 2068</a>.
</p>
<p class=note>The Basic Authentication Scheme sends
<p class="note">The Basic Authentication Scheme sends
<tt>&lt;user&gt;</tt> and
<tt>&lt;password&gt;</tt> unencrypted to the server and is therefore
considered unsafe. Unfortunately, by the time of this implementation,
@ -294,7 +296,7 @@ Therefore, this is the method used by the toolkit whenever
authentication is required.
</p>
<pre class=example>
<pre class="example">
-- load required modules
http = require("socket.http")
mime = require("mime")
@ -314,15 +316,15 @@ r, c = http.request {
<!-- footer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
<div class=footer>
<div class="footer">
<hr>
<center>
<p class=bar>
<p class="bar">
<a href="index.html">home</a> &middot;
<a href="index.html#download">download</a> &middot;
<a href="installation.html">installation</a> &middot;
<a href="introduction.html">introduction</a> &middot;
<a href="reference.html">reference</a>
<a href="reference.html">reference</a>
</p>
<p>
<small>