ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: usr / share / doc / python-docs-2.7.5 / html / _sources / library

:mod:`BaseHTTPServer` --- Basic HTTP server
===========================================

.. module:: BaseHTTPServer
   :synopsis: Basic HTTP server (base class for SimpleHTTPServer and CGIHTTPServer).

.. note::
   The :mod:`BaseHTTPServer` module has been merged into :mod:`http.server` in
   Python 3.  The :term:`2to3` tool will automatically adapt imports when
   converting your sources to Python 3.

.. index::
   pair: WWW; server
   pair: HTTP; protocol
   single: URL
   single: httpd
   module: SimpleHTTPServer
   module: CGIHTTPServer

**Source code:** :source:`Lib/BaseHTTPServer.py`

--------------

This module defines two classes for implementing HTTP servers (Web servers).
Usually, this module isn't used directly, but is used as a basis for building
functioning Web servers. See the :mod:`SimpleHTTPServer` and
:mod:`CGIHTTPServer` modules.

The first class, :class:`HTTPServer`, is a :class:`SocketServer.TCPServer`
subclass, and therefore implements the :class:`SocketServer.BaseServer`
interface.  It creates and listens at the HTTP socket, dispatching the requests
to a handler.  Code to create and run the server looks like this::

def run(server_class=BaseHTTPServer.HTTPServer,
           handler_class=BaseHTTPServer.BaseHTTPRequestHandler):
       server_address = ('', 8000)
       httpd = server_class(server_address, handler_class)
       httpd.serve_forever()

.. class:: HTTPServer(server_address, RequestHandlerClass)

This class builds on the :class:`TCPServer` class by storing the server
   address as instance variables named :attr:`server_name` and
   :attr:`server_port`. The server is accessible by the handler, typically
   through the handler's :attr:`server` instance variable.

.. class:: BaseHTTPRequestHandler(request, client_address, server)

This class is used to handle the HTTP requests that arrive at the server. By
   itself, it cannot respond to any actual HTTP requests; it must be subclassed
   to handle each request method (e.g. GET or
   POST). :class:`BaseHTTPRequestHandler` provides a number of class and
   instance variables, and methods for use by subclasses.

The handler will parse the request and the headers, then call a method
   specific to the request type. The method name is constructed from the
   request. For example, for the request method ``SPAM``, the :meth:`do_SPAM`
   method will be called with no arguments. All of the relevant information is
   stored in instance variables of the handler.  Subclasses should not need to
   override or extend the :meth:`__init__` method.

:class:`BaseHTTPRequestHandler` has the following instance variables:

.. attribute:: client_address

Contains a tuple of the form ``(host, port)`` referring to the client's
      address.

.. attribute:: server

Contains the server instance.

.. attribute:: command

Contains the command (request type). For example, ``'GET'``.

.. attribute:: path

Contains the request path.

.. attribute:: request_version

Contains the version string from the request. For example, ``'HTTP/1.0'``.

.. attribute:: headers

Holds an instance of the class specified by the :attr:`MessageClass` class
      variable. This instance parses and manages the headers in the HTTP
      request.

.. attribute:: rfile

Contains an input stream, positioned at the start of the optional input
      data.

.. attribute:: wfile

Contains the output stream for writing a response back to the
      client. Proper adherence to the HTTP protocol must be used when writing to
      this stream.

:class:`BaseHTTPRequestHandler` has the following class variables:

.. attribute:: server_version

Specifies the server software version.  You may want to override this. The
      format is multiple whitespace-separated strings, where each string is of
      the form name[/version]. For example, ``'BaseHTTP/0.2'``.

.. attribute:: sys_version

Contains the Python system version, in a form usable by the
      :attr:`version_string` method and the :attr:`server_version` class
      variable. For example, ``'Python/1.4'``.

.. attribute:: error_message_format

Specifies a format string for building an error response to the client. It
      uses parenthesized, keyed format specifiers, so the format operand must be
      a dictionary. The *code* key should be an integer, specifying the numeric
      HTTP error code value. *message* should be a string containing a
      (detailed) error message of what occurred, and *explain* should be an
      explanation of the error code number. Default *message* and *explain*
      values can found in the *responses* class variable.

.. attribute:: error_content_type

Specifies the Content-Type HTTP header of error responses sent to the
      client.  The default value is ``'text/html'``.

.. versionadded:: 2.6
         Previously, the content type was always ``'text/html'``.

.. attribute:: protocol_version

This specifies the HTTP protocol version used in responses.  If set to
      ``'HTTP/1.1'``, the server will permit HTTP persistent connections;
      however, your server *must* then include an accurate ``Content-Length``
      header (using :meth:`send_header`) in all of its responses to clients.
      For backwards compatibility, the setting defaults to ``'HTTP/1.0'``.

.. attribute:: MessageClass

.. index:: single: Message (in module mimetools)

Specifies a :class:`rfc822.Message`\ -like class to parse HTTP headers.
      Typically, this is not overridden, and it defaults to
      :class:`mimetools.Message`.

.. attribute:: responses

This variable contains a mapping of error code integers to two-element tuples
      containing a short and long message. For example, ``{code: (shortmessage,
      longmessage)}``. The *shortmessage* is usually used as the *message* key in an
      error response, and *longmessage* as the *explain* key (see the
      :attr:`error_message_format` class variable).

A :class:`BaseHTTPRequestHandler` instance has the following methods:

.. method:: handle()

Calls :meth:`handle_one_request` once (or, if persistent connections are
      enabled, multiple times) to handle incoming HTTP requests. You should
      never need to override it; instead, implement appropriate :meth:`do_\*`
      methods.

.. method:: handle_one_request()

This method will parse and dispatch the request to the appropriate
      :meth:`do_\*` method.  You should never need to override it.

.. method:: send_error(code[, message])

Sends and logs a complete error reply to the client. The numeric *code*
      specifies the HTTP error code, with *message* as optional, more specific text. A
      complete set of headers is sent, followed by text composed using the
      :attr:`error_message_format` class variable.

.. method:: send_response(code[, message])

Sends a response header and logs the accepted request. The HTTP response
      line is sent, followed by *Server* and *Date* headers. The values for
      these two headers are picked up from the :meth:`version_string` and
      :meth:`date_time_string` methods, respectively.

.. method:: send_header(keyword, value)

Writes a specific HTTP header to the output stream. *keyword* should
      specify the header keyword, with *value* specifying its value.

.. method:: end_headers()

Sends a blank line, indicating the end of the HTTP headers in the
      response.

.. method:: log_request([code[, size]])

Logs an accepted (successful) request. *code* should specify the numeric
      HTTP code associated with the response. If a size of the response is
      available, then it should be passed as the *size* parameter.

.. method:: log_error(...)

Logs an error when a request cannot be fulfilled. By default, it passes
      the message to :meth:`log_message`, so it takes the same arguments
      (*format* and additional values).

.. method:: log_message(format, ...)

Logs an arbitrary message to ``sys.stderr``. This is typically overridden
      to create custom error logging mechanisms. The *format* argument is a
      standard printf-style format string, where the additional arguments to
      :meth:`log_message` are applied as inputs to the formatting. The client
      ip address and current date and time are prefixed to every message logged.

.. method:: version_string()

Returns the server software's version string. This is a combination of the
      :attr:`server_version` and :attr:`sys_version` class variables.

.. method:: date_time_string([timestamp])

Returns the date and time given by *timestamp* (which must be in the
      format returned by :func:`time.time`), formatted for a message header. If
      *timestamp* is omitted, it uses the current date and time.

The result looks like ``'Sun, 06 Nov 1994 08:49:37 GMT'``.

.. versionadded:: 2.5
         The *timestamp* parameter.

.. method:: log_date_time_string()

Returns the current date and time, formatted for logging.

.. method:: address_string()

Returns the client address, formatted for logging. A name lookup is
      performed on the client's IP address.

More examples
-------------

To create a server that doesn't run forever, but until some condition is
fulfilled::

def run_while_true(server_class=BaseHTTPServer.HTTPServer,
                      handler_class=BaseHTTPServer.BaseHTTPRequestHandler):
       """
       This assumes that keep_running() is a function of no arguments which
       is tested initially and after each request.  If its return value
       is true, the server continues.
       """
       server_address = ('', 8000)
       httpd = server_class(server_address, handler_class)
       while keep_running():
           httpd.handle_request()

.. seealso::

Module :mod:`CGIHTTPServer`
      Extended request handler that supports CGI scripts.

Module :mod:`SimpleHTTPServer`
      Basic request handler that limits response to files actually under the
      document root.

[+] ..
[-] fpformat.txt [edit]
[-] string.txt [edit]
[-] aetypes.txt [edit]
[-] textwrap.txt [edit]
[-] codecs.txt [edit]
[-] array.txt [edit]
[-] urllib2.txt [edit]
[-] pickle.txt [edit]
[-] 2to3.txt [edit]
[-] ossaudiodev.txt [edit]
[-] markup.txt [edit]
[-] sha.txt [edit]
[-] stat.txt [edit]
[-] itertools.txt [edit]
[-] numeric.txt [edit]
[-] gzip.txt [edit]
[-] pkgutil.txt [edit]
[-] subprocess.txt [edit]
[-] token.txt [edit]
[-] debug.txt [edit]
[-] dummy_thread.txt [edit]
[-] mimify.txt [edit]
[-] bastion.txt [edit]
[-] popen2.txt [edit]
[-] autogil.txt [edit]
[-] importlib.txt [edit]
[-] io.txt [edit]
[-] msilib.txt [edit]
[-] development.txt [edit]
[-] hotshot.txt [edit]
[-] constants.txt [edit]
[-] curses.ascii.txt [edit]
[-] os.txt [edit]
[-] easydialogs.txt [edit]
[-] mutex.txt [edit]
[-] md5.txt [edit]
[-] stdtypes.txt [edit]
[-] bz2.txt [edit]
[-] imgfile.txt [edit]
[-] aetools.txt [edit]
[-] internet.txt [edit]
[-] xml.dom.pulldom.txt [edit]
[-] cookie.txt [edit]
[-] sunau.txt [edit]
[-] archiving.txt [edit]
[-] modules.txt [edit]
[-] base64.txt [edit]
[-] ttk.txt [edit]
[-] tty.txt [edit]
[-] cookielib.txt [edit]
[-] pydoc.txt [edit]
[-] misc.txt [edit]
[-] fm.txt [edit]
[-] whichdb.txt [edit]
[-] imghdr.txt [edit]
[-] datatypes.txt [edit]
[-] dis.txt [edit]
[-] datetime.txt [edit]
[-] userdict.txt [edit]
[-] py_compile.txt [edit]
[-] imputil.txt [edit]
[-] xml.dom.minidom.txt [edit]
[-] multiprocessing.txt [edit]
[-] functools.txt [edit]
[-] audioop.txt [edit]
[-] language.txt [edit]
[-] miniaeframe.txt [edit]
[-] ssl.txt [edit]
[-] copy_reg.txt [edit]
[-] heapq.txt [edit]
[-] syslog.txt [edit]
[-] fileformats.txt [edit]
[-] simplexmlrpcserver.txt [edit]
[-] numbers.txt [edit]
[-] pipes.txt [edit]
[-] shutil.txt [edit]
[-] zlib.txt [edit]
[-] optparse.txt [edit]
[-] allos.txt [edit]
[-] custominterp.txt [edit]
[-] windows.txt [edit]
[-] dbm.txt [edit]
[-] select.txt [edit]
[-] time.txt [edit]
[-] index.txt [edit]
[-] undoc.txt [edit]
[-] plistlib.txt [edit]
[-] htmllib.txt [edit]
[-] warnings.txt [edit]
[-] functions.txt [edit]
[-] argparse.txt [edit]
[-] distutils.txt [edit]
[-] macpath.txt [edit]
[-] fnmatch.txt [edit]
[-] tabnanny.txt [edit]
[-] calendar.txt [edit]
[-] jpeg.txt [edit]
[-] zipimport.txt [edit]
[-] unix.txt [edit]
[-] chunk.txt [edit]
[-] smtplib.txt [edit]
[-] tokenize.txt [edit]
[-] asynchat.txt [edit]
[-] decimal.txt [edit]
[-] cd.txt [edit]
[-] pickletools.txt [edit]
[-] statvfs.txt [edit]
[-] gettext.txt [edit]
[-] sqlite3.txt [edit]
[-] imageop.txt [edit]
[-] dl.txt [edit]
[-] logging.handlers.txt [edit]
[-] zipfile.txt [edit]
[-] copy.txt [edit]
[-] sched.txt [edit]
[-] nis.txt [edit]
[-] timeit.txt [edit]
[-] weakref.txt [edit]
[-] mailbox.txt [edit]
[-] othergui.txt [edit]
[-] sgmllib.txt [edit]
[-] mimewriter.txt [edit]
[-] email.charset.txt [edit]
[-] mmap.txt [edit]
[-] xmlrpclib.txt [edit]
[-] robotparser.txt [edit]
[-] xml.sax.reader.txt [edit]
[-] hmac.txt [edit]
[-] collections.txt [edit]
[-] mimetools.txt [edit]
[-] aifc.txt [edit]
[-] modulefinder.txt [edit]
[-] socketserver.txt [edit]
[-] grp.txt [edit]
[-] getopt.txt [edit]
[-] __future__.txt [edit]
[-] binascii.txt [edit]
[-] symtable.txt [edit]
[-] crypt.txt [edit]
[-] email.encoders.txt [edit]
[-] imaplib.txt [edit]
[-] spwd.txt [edit]
[-] wsgiref.txt [edit]
[-] errno.txt [edit]
[-] email-examples.txt [edit]
[-] sun.txt [edit]
[-] doctest.txt [edit]
[-] resource.txt [edit]
[-] asyncore.txt [edit]
[-] curses.panel.txt [edit]
[-] imp.txt [edit]
[-] htmlparser.txt [edit]
[-] thread.txt [edit]
[-] posix.txt [edit]
[-] repr.txt [edit]
[-] macostools.txt [edit]
[-] colorsys.txt [edit]
[-] bdb.txt [edit]
[-] stringio.txt [edit]
[-] mm.txt [edit]
[-] cgi.txt [edit]
[-] math.txt [edit]
[-] httplib.txt [edit]
[-] urlparse.txt [edit]
[-] aepack.txt [edit]
[-] colorpicker.txt [edit]
[-] binhex.txt [edit]
[-] tk.txt [edit]
[-] xml.txt [edit]
[-] webbrowser.txt [edit]
[-] contextlib.txt [edit]
[-] types.txt [edit]
[-] shelve.txt [edit]
[-] platform.txt [edit]
[-] readline.txt [edit]
[-] locale.txt [edit]
[-] sets.txt [edit]
[-] macosa.txt [edit]
[-] bisect.txt [edit]
[-] email.parser.txt [edit]
[-] xml.sax.txt [edit]
[-] xml.etree.elementtree.txt [edit]
[-] netrc.txt [edit]
[-] new.txt [edit]
[-] bsddb.txt [edit]
[-] fl.txt [edit]
[-] curses.txt [edit]
[-] hashlib.txt [edit]
[-] tarfile.txt [edit]
[-] ftplib.txt [edit]
[-] telnetlib.txt [edit]
[-] macos.txt [edit]
[-] multifile.txt [edit]
[-] dbhash.txt [edit]
[-] netdata.txt [edit]
[-] fileinput.txt [edit]
[-] python.txt [edit]
[-] mac.txt [edit]
[-] filesys.txt [edit]
[-] scrolledtext.txt [edit]
[-] compiler.txt [edit]
[-] tkinter.txt [edit]
[-] random.txt [edit]
[-] mailcap.txt [edit]
[-] fpectl.txt [edit]
[-] fcntl.txt [edit]
[-] ipc.txt [edit]
[-] formatter.txt [edit]
[-] profile.txt [edit]
[-] xml.dom.txt [edit]
[-] email.iterators.txt [edit]
[-] logging.config.txt [edit]
[-] rlcompleter.txt [edit]
[-] idle.txt [edit]
[-] gdbm.txt [edit]
[-] ast.txt [edit]
[-] someos.txt [edit]
[-] cmd.txt [edit]
[-] re.txt [edit]
[-] docxmlrpcserver.txt [edit]
[-] pdb.txt [edit]
[-] rexec.txt [edit]
[-] commands.txt [edit]
[-] restricted.txt [edit]
[-] crypto.txt [edit]
[-] dumbdbm.txt [edit]
[-] email.txt [edit]
[-] linecache.txt [edit]
[-] os.path.txt [edit]
[-] cgitb.txt [edit]
[-] _winreg.txt [edit]
[-] carbon.txt [edit]
[-] turtle.txt [edit]
[-] xml.sax.handler.txt [edit]
[-] json.txt [edit]
[-] email.generator.txt [edit]
[-] struct.txt [edit]
[-] mhlib.txt [edit]
[-] uuid.txt [edit]
[-] threading.txt [edit]
[-] mimetypes.txt [edit]
[-] traceback.txt [edit]
[-] filecmp.txt [edit]
[-] sndhdr.txt [edit]
[-] logging.txt [edit]
[-] getpass.txt [edit]
[-] dummy_threading.txt [edit]
[-] abc.txt [edit]
[-] shlex.txt [edit]
[-] email.mime.txt [edit]
[-] fractions.txt [edit]
[-] email.header.txt [edit]
[-] marshal.txt [edit]
[-] symbol.txt [edit]
[-] wave.txt [edit]
[-] urllib.txt [edit]
[-] queue.txt [edit]
[-] operator.txt [edit]
[-] compileall.txt [edit]
[-] sysconfig.txt [edit]
[-] quopri.txt [edit]
[-] inspect.txt [edit]
[-] xdrlib.txt [edit]
[-] __builtin__.txt [edit]
[-] ic.txt [edit]
[-] signal.txt [edit]
[-] dircache.txt [edit]
[-] rfc822.txt [edit]
[-] glob.txt [edit]
[-] stringprep.txt [edit]
[-] tix.txt [edit]
[-] i18n.txt [edit]
[-] email.util.txt [edit]
[-] anydbm.txt [edit]
[-] code.txt [edit]
[-] __main__.txt [edit]
[-] difflib.txt [edit]
[-] unicodedata.txt [edit]
[-] sunaudio.txt [edit]
[-] msvcrt.txt [edit]
[-] site.txt [edit]
[-] codeop.txt [edit]
[-] uu.txt [edit]
[-] winsound.txt [edit]
[-] smtpd.txt [edit]
[-] al.txt [edit]
[-] user.txt [edit]
[-] poplib.txt [edit]
[-] nntplib.txt [edit]
[-] keyword.txt [edit]
[-] ctypes.txt [edit]
[-] socket.txt [edit]
[-] simplehttpserver.txt [edit]
[-] sys.txt [edit]
[-] pyexpat.txt [edit]
[-] configparser.txt [edit]
[-] persistence.txt [edit]
[-] trace.txt [edit]
[-] runpy.txt [edit]
[-] csv.txt [edit]
[-] test.txt [edit]
[-] framework.txt [edit]
[-] gc.txt [edit]
[-] cmath.txt [edit]
[-] exceptions.txt [edit]
[-] pyclbr.txt [edit]
[-] sgi.txt [edit]
[-] parser.txt [edit]
[-] future_builtins.txt [edit]
[-] pwd.txt [edit]
[-] strings.txt [edit]
[-] frameworks.txt [edit]
[-] email.message.txt [edit]
[-] cgihttpserver.txt [edit]
[-] intro.txt [edit]
[-] email.errors.txt [edit]
[-] pprint.txt [edit]
[-] pty.txt [edit]
[-] xml.sax.utils.txt [edit]
[-] posixfile.txt [edit]
[-] tempfile.txt [edit]
[-] termios.txt [edit]
[-] gl.txt [edit]
[-] gensuitemodule.txt [edit]
[-] atexit.txt [edit]
[-] basehttpserver.txt [edit]
[-] unittest.txt [edit]