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+# Introduction
+
+Having a HTTP server in an IRC may be baffling, because it seems to be useless.
+Yes, you are right, it is useless in most of the cases. But it may be cool.
+
+Some plugins (WebStats, Github, and PasteUfr are the only one, as far as I know) have their own embedded HTTP server. Unfortunately, a HTTP need a port, and consumes a few resources (CPU/memory). So, if you want many of these plugins, it becomes embarrassing.
+
+Anyway, if you are on this page, this is probably because you want to use this HTTP server, so I don't need to convince you.
+Before reading further, be sure you have a Limnoria (or any Supybot fork that merged this HTTP server).
+
+# Using the HTTP server in a plugin
+
+Let's try to make a basic dictionary about Supybot! We'll call it Supystory.
+
+We want to get plain text information about Supybot, Gribble, and Limnoria when accessing http://localhost:8080/supystory/supybot, http://localhost:8080/supystory/gribble, and http://localhost:8080/supystory/limnoria, and an HTML error page if the page is not found
+
+### Importing the HTTP server
+
+Actually, you don't need to import anything more than the defaults, because the HTTP server is in `supybot.utils.httpserver`, and you probably have this line at the beginning of the `plugin.py`:
+```python
+import supybot.utils as utils
+```
+
+### Creating a callback
+
+If you are familiar with `BaseHTTPServer`, you will recognize the design, except you don't need to subclass BaseHTTPServer, because I've already done it in `supybot.utils.httpserver`.
+
+Now, you have to subclass `utils.httpserver.SupyHTTPServerCallback`. A callback is pretty much like an handler, but this is not an handler, because a callback is called by the handler.
+
+Here is how to do it:
+```python
+class SupystoryServerCallback(utils.httpserver.SupyHTTPServerCallback):
+    name = 'WebStats'
+```
+Now, you have to register the callback, because the HTTP server does not know what subdirectory it should assign to your callback. Do it with adding a `__init__` to your plugin (read Supybot's docs about it, for more informations):
+```python
+class Supystory(callbacks.Plugin):
+    def __init__(self, irc):
+        # Some stuff needed by Supybot
+        self.__parent = super(Supystory, self)
+        callbacks.Plugin.__init__(self, irc)
+
+        # registering the callback
+        callback = SupystoryServerCallback() # create an instance of the callback
+        utils.httpserver.hook('webstats', callback) # register the callback at `/webstats`
+```
+By the way, don't forget to unhook your callback when unloading your plugin, unless what it will be impossible to reload the plugin! Append this code to the following:
+```python
+    def die(self):
+        # unregister the callback
+        utils.httpserver.unhook('supystory') # unregister the callback hooked at /supystory
+
+        # Stuff for Supybot
+        self.__parent.die()
+```
+
+Now, you can load your plugin, and you'll see on the server a beautiful link to `/supystory` called `Supystory`.
+
+### Overriding the default error message
+
+But our plugin does not do anything for the moment. If click the link, you'll get this message:
+```
+    This is a default response of the Supybot HTTP server. If you see this
+    message, it probably means you are developping a plugin, and you have
+    neither overriden this message or defined an handler for this query.
+```
+That mean your browser sent a GET request, but you didn't teach your plugin how to handle it. First, we'll change this error message.
+Here is a new code for your callback:
+```python
+class SupystoryServerCallback(utils.httpserver.SupyHTTPServerCallback):
+    name = 'Supystory'
+    defaultResponse = """
+    This plugin handles only GET request, please don't use other requests."""
+```
+Now, you'll get your customized message. But your plugin still doesn't work. You need to implement the GET request.
+
+### Implementing the GET request
+
+As I said before, callbacks are pretty much like handlers. In order to handle GET requests, you have to implement a method called... `doGet` (if you used BaseHTTPServer, you will notice this is not do_GET, because doGet is more homogeneous with Supybot naming style: `doPrivmsg`, `doPing`, and so on).
+
+You will get the handler and the URI as arguments. The handler is a [BaseHTTPRequestHandler](http://docs.python.org/library/basehttpserver.html#BaseHTTPServer.BaseHTTPRequestHandler), and the URI is a string.
+
+Here is the code of the callback... pretty much simple, as ever:
+```python
+class SupystoryServerCallback(utils.httpserver.SupyHTTPServerCallback):
+    name = 'Supystory'
+    defaultResponse = """
+    This plugin handles only GET request, please don't use other requests."""
+
+    def doGet(self, handler, path):
+        if path == '/supybot':
+             response = 'Supybot is the best IRC bot ever.'
+        elif path == '/gribble':
+             response = 'Thanks to Gribble, we have many bug fixes and SQLite 3 support'
+        elif path == '/limnoria':
+             response = 'Because of Limnoria, you need to internationalize your plugins and read this f*cking do.'
+        else:
+             response = None
+        if response is None:
+             handler.send_response(404) # Not found, as described by the HTTP protocol
+             handler.send_header('Content-type', 'text/html') # This is the MIME for HTML data
+             handler.end_headers() # We won't send more headers
+             handler.wfile.write("""
+             <html>
+              <head>
+               <title>Error</title>
+              </head>
+              <body>
+               <h1>404 Not found</h1>
+               <p>
+                The document could not be found. Try one of this links:
+                <a href="./supybot">Supybot</a>
+                <a href="./gribble">Gribble</a>
+                <a href="./limnoria">Limnoria</a>
+               </p>
+              </body>
+             </html>""")
+        else:
+             handler.send_response(404) # Not found, as described by the HTTP protocol
+             handler.send_header('Content-type', 'text/plain') # This is the MIME for plain text
+             handler.end_headers() # We won't send more headers
+             handler.wfile.write(response)
+```
+
+That's all !
+
+You may not understand everything (I know I don't speak English very well); come on #limnoria at Freenode and ask for help of make suggestions!
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