Blame - Lib/http/server.py - platform/external/python/cpython3

2008-05-26 16:32:26 +0000

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"""HTTP server classes.

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Note: BaseHTTPRequestHandler doesn't implement any HTTP request; see

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SimpleHTTPRequestHandler for simple implementations of GET, HEAD and POST,

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and CGIHTTPRequestHandler for CGI scripts.

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It does, however, optionally implement HTTP/1.1 persistent connections,

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as of version 0.3.

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Notes on CGIHTTPRequestHandler

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

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This class implements GET and POST requests to cgi-bin scripts.

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If the os.fork() function is not present (e.g. on Windows),

Amaury Forgeot d'Arc

2008-06-18 22:19:22 +0000

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subprocess.Popen() is used as a fallback, with slightly altered semantics.

Georg Brandl

2008-05-26 16:32:26 +0000

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In all cases, the implementation is intentionally naive -- all

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requests are executed synchronously.

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SECURITY WARNING: DON'T USE THIS CODE UNLESS YOU ARE INSIDE A FIREWALL

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-- it may execute arbitrary Python code or external programs.

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Note that status code 200 is sent prior to execution of a CGI script, so

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scripts cannot send other status codes such as 302 (redirect).

XXX To do:

- log requests even later (to capture byte count)

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- log user-agent header and other interesting goodies

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- send error log to separate file

"""

# See also:

#

# HTTP Working Group T. Berners-Lee

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# INTERNET-DRAFT R. T. Fielding

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# <draft-ietf-http-v10-spec-00.txt> H. Frystyk Nielsen

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# Expires September 8, 1995 March 8, 1995

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#

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# URL: http://www.ics.uci.edu/pub/ietf/http/draft-ietf-http-v10-spec-00.txt

#

# and

#

# Network Working Group R. Fielding

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# Request for Comments: 2616 et al

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# Obsoletes: 2068 June 1999

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# Category: Standards Track

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#

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# URL: http://www.faqs.org/rfcs/rfc2616.html

# Log files

# ---------

#

# Here's a quote from the NCSA httpd docs about log file format.

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#

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# | The logfile format is as follows. Each line consists of:

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# |

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# | host rfc931 authuser [DD/Mon/YYYY:hh:mm:ss] "request" ddd bbbb

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# |

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# | host: Either the DNS name or the IP number of the remote client

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# | rfc931: Any information returned by identd for this person,

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# | - otherwise.

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# | authuser: If user sent a userid for authentication, the user name,

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# | - otherwise.

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# | DD: Day

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# | Mon: Month (calendar name)

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# | YYYY: Year

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# | hh: hour (24-hour format, the machine's timezone)

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# | mm: minutes

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# | ss: seconds

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# | request: The first line of the HTTP request as sent by the client.

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# | ddd: the status code returned by the server, - if not available.

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# | bbbb: the total number of bytes sent,

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# | *not including the HTTP/1.0 header*, - if not available

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# |

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# | You can determine the name of the file accessed through request.

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#

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# (Actually, the latter is only true if you know the server configuration

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# at the time the request was made!)

__version__ = "0.6"

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__all__ = [

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"HTTPServer", "BaseHTTPRequestHandler",

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"SimpleHTTPRequestHandler", "CGIHTTPRequestHandler",

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]

Georg Brandl

2008-05-26 16:32:26 +0000

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Georg Brandl

1f7fffb

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import html

Jeremy Hylton

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2009-03-27 17:16:06 +0000

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import http.client

import io

import mimetypes

import os

import posixpath

import select

import shutil

import socket # For gethostbyaddr()

import socketserver

import sys

import time

import urllib.parse

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import copy

Senthil Kumaran

2012-06-03 16:15:54 +0800

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import argparse

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Serhiy Storchaka

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from http import HTTPStatus

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Georg Brandl

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# Default error message template

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DEFAULT_ERROR_MESSAGE = """\

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"

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"http://www.w3.org/TR/html4/strict.dtd">

Ezio Melotti

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<html>

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<head>

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Senthil Kumaran

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<title>Error response</title>

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</head>

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<body>

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<h1>Error response</h1>

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<p>Error code: %(code)d</p>

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<p>Message: %(message)s.</p>

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<p>Error code explanation: %(code)s - %(explain)s.</p>

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</body>

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</html>

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"""

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DEFAULT_ERROR_CONTENT_TYPE = "text/html;charset=utf-8"

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def _quote_html(html):

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return html.replace("&", "&").replace("<", "<").replace(">", ">")

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class HTTPServer(socketserver.TCPServer):

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allow_reuse_address = 1 # Seems to make sense in testing environment

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def server_bind(self):

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"""Override server_bind to store the server name."""

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socketserver.TCPServer.server_bind(self)

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host, port = self.socket.getsockname()[:2]

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self.server_name = socket.getfqdn(host)

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self.server_port = port

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class BaseHTTPRequestHandler(socketserver.StreamRequestHandler):

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"""HTTP request handler base class.

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The following explanation of HTTP serves to guide you through the

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code as well as to expose any misunderstandings I may have about

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HTTP (so you don't need to read the code to figure out I'm wrong

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:-).

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HTTP (HyperText Transfer Protocol) is an extensible protocol on

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top of a reliable stream transport (e.g. TCP/IP). The protocol

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recognizes three parts to a request:

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1. One line identifying the request type and path

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2. An optional set of RFC-822-style headers

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3. An optional data part

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The headers and data are separated by a blank line.

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The first line of the request has the form

where <command> is a (case-sensitive) keyword such as GET or POST,

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<path> is a string containing path information for the request,

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and <version> should be the string "HTTP/1.0" or "HTTP/1.1".

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<path> is encoded using the URL encoding scheme (using %xx to signify

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the ASCII character with hex code xx).

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The specification specifies that lines are separated by CRLF but

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for compatibility with the widest range of clients recommends

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servers also handle LF. Similarly, whitespace in the request line

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is treated sensibly (allowing multiple spaces between components

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and allowing trailing whitespace).

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Similarly, for output, lines ought to be separated by CRLF pairs

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but most clients grok LF characters just fine.

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If the first line of the request has the form

(i.e. <version> is left out) then this is assumed to be an HTTP

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0.9 request; this form has no optional headers and data part and

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the reply consists of just the data.

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The reply form of the HTTP 1.x protocol again has three parts:

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1. One line giving the response code

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2. An optional set of RFC-822-style headers

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3. The data

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Again, the headers and data are separated by a blank line.

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The response code line has the form

where <version> is the protocol version ("HTTP/1.0" or "HTTP/1.1"),

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<responsecode> is a 3-digit response code indicating success or

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failure of the request, and <responsestring> is an optional

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human-readable string explaining what the response code means.

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This server parses the request and the headers, and then calls a

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function specific to the request type (<command>). Specifically,

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a request SPAM will be handled by a method do_SPAM(). If no

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such method exists the server sends an error response to the

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client. If it exists, it is called with no arguments:

do_SPAM()

Note that the request name is case sensitive (i.e. SPAM and spam

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are different requests).

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The various request details are stored in instance variables:

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- client_address is the client IP address in the form (host,

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port);

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- command, path and version are the broken-down request line;

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2008-06-12 04:06:45 +0000

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- headers is an instance of email.message.Message (or a derived

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2008-05-26 16:32:26 +0000

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class) containing the header information;

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- rfile is a file object open for reading positioned at the

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start of the optional input data part;

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- wfile is a file object open for writing.

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IT IS IMPORTANT TO ADHERE TO THE PROTOCOL FOR WRITING!

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The first thing to be written must be the response line. Then

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follow 0 or more header lines, then a blank line, and then the

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actual data (if any). The meaning of the header lines depends on

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the command executed by the server; in most cases, when data is

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returned, there should be at least one header line of the form

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Content-type: <type>/<subtype>

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where <type> and <subtype> should be registered MIME types,

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e.g. "text/html" or "text/plain".

"""

# The Python system version, truncated to its first component.

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sys_version = "Python/" + sys.version.split()[0]

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# The server software version. You may want to override this.

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# The format is multiple whitespace-separated strings,

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# where each string is of the form name[/version].

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server_version = "BaseHTTP/" + __version__

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error_message_format = DEFAULT_ERROR_MESSAGE

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error_content_type = DEFAULT_ERROR_CONTENT_TYPE

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# The default request version. This only affects responses up until

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# the point where the request line is parsed, so it mainly decides what

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# the client gets back when sending a malformed request line.

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# Most web servers default to HTTP 0.9, i.e. don't send a status line.

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default_request_version = "HTTP/0.9"

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def parse_request(self):

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"""Parse a request (internal).

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The request should be stored in self.raw_requestline; the results

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are in self.command, self.path, self.request_version and

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self.headers.

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Return True for success, False for failure; on failure, an

error is sent back.

"""

self.command = None # set in case of error on the first line

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self.request_version = version = self.default_request_version

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self.close_connection = True

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requestline = str(self.raw_requestline, 'iso-8859-1')

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requestline = requestline.rstrip('\r\n')

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self.requestline = requestline

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words = requestline.split()

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if len(words) == 3:

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3075549

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command, path, version = words

Georg Brandl

2008-05-26 16:32:26 +0000

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if version[:5] != 'HTTP/':

Serhiy Storchaka

2014-12-23 16:28:28 +0200

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self.send_error(

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HTTPStatus.BAD_REQUEST,

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"Bad request version (%r)" % version)

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2008-05-26 16:32:26 +0000

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return False

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try:

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base_version_number = version.split('/', 1)[1]

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version_number = base_version_number.split(".")

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# RFC 2145 section 3.1 says there can be only one "." and

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# - major and minor numbers MUST be treated as

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# separate integers;

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# - HTTP/2.4 is a lower version than HTTP/2.13, which in

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# turn is lower than HTTP/12.3;

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# - Leading zeros MUST be ignored by recipients.

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if len(version_number) != 2:

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raise ValueError

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version_number = int(version_number[0]), int(version_number[1])

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except (ValueError, IndexError):

Serhiy Storchaka

2014-12-23 16:28:28 +0200

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self.send_error(

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HTTPStatus.BAD_REQUEST,

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"Bad request version (%r)" % version)

Georg Brandl

2008-05-26 16:32:26 +0000

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return False

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if version_number >= (1, 1) and self.protocol_version >= "HTTP/1.1":

Benjamin Peterson

2015-02-17 21:11:10 -0500

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self.close_connection = False

Georg Brandl

2008-05-26 16:32:26 +0000

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if version_number >= (2, 0):

Serhiy Storchaka

2014-12-23 16:28:28 +0200

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self.send_error(

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HTTPStatus.HTTP_VERSION_NOT_SUPPORTED,

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"Invalid HTTP Version (%s)" % base_version_number)

Georg Brandl

2008-05-26 16:32:26 +0000

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return False

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elif len(words) == 2:

Senthil Kumaran

3075549

2011-12-23 17:03:41 +0800

[diff] [blame]

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command, path = words

Benjamin Peterson

2015-02-17 21:11:10 -0500

[diff] [blame]

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self.close_connection = True

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

317

if command != 'GET':

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

318

self.send_error(

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HTTPStatus.BAD_REQUEST,

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"Bad HTTP/0.9 request type (%r)" % command)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

return False

elif not words:

return False

else:

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

325

self.send_error(

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HTTPStatus.BAD_REQUEST,

327

"Bad request syntax (%r)" % requestline)

Georg Brandl

2008-05-26 16:32:26 +0000

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328

return False

329

self.command, self.path, self.request_version = command, path, version

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331

# Examine the headers and look for a Connection directive.

Senthil Kumaran

5466bf1

2010-12-18 16:55:23 +0000

[diff] [blame]

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try:

333

self.headers = http.client.parse_headers(self.rfile,

334

_class=self.MessageClass)

335

except http.client.LineTooLong:

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

336

self.send_error(

337

HTTPStatus.BAD_REQUEST,

338

"Line too long")

Senthil Kumaran

5466bf1

2010-12-18 16:55:23 +0000

[diff] [blame]

339

return False

Georg Brandl

2008-05-26 16:32:26 +0000

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340

341

conntype = self.headers.get('Connection', "")

342

if conntype.lower() == 'close':

Benjamin Peterson

2015-02-17 21:11:10 -0500

[diff] [blame]

343

self.close_connection = True

Georg Brandl

2008-05-26 16:32:26 +0000

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344

elif (conntype.lower() == 'keep-alive' and

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self.protocol_version >= "HTTP/1.1"):

Benjamin Peterson

2015-02-17 21:11:10 -0500

[diff] [blame]

346

self.close_connection = False

Senthil Kumaran

0f476d4

2010-09-30 06:09:18 +0000

[diff] [blame]

347

# Examine the headers and look for an Expect directive

348

expect = self.headers.get('Expect', "")

349

if (expect.lower() == "100-continue" and

350

self.protocol_version >= "HTTP/1.1" and

351

self.request_version >= "HTTP/1.1"):

352

if not self.handle_expect_100():

return False

return True

def handle_expect_100(self):

357

"""Decide what to do with an "Expect: 100-continue" header.

358

359

If the client is expecting a 100 Continue response, we must

360

respond with either a 100 Continue or a final response before

361

waiting for the request body. The default is to always respond

362

with a 100 Continue. You can behave differently (for example,

363

reject unauthorized requests) by overriding this method.

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365

This method should either return True (possibly after sending

366

a 100 Continue response) or send an error response and return

367

False.

368

369

"""

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

370

self.send_response_only(HTTPStatus.CONTINUE)

Benjamin Peterson

0442423

2014-01-18 21:50:18 -0500

[diff] [blame]

371

self.end_headers()

Georg Brandl

2008-05-26 16:32:26 +0000

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return True

373

374

def handle_one_request(self):

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"""Handle a single HTTP request.

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377

You normally don't need to override this method; see the class

378

__doc__ string for information on how to handle specific HTTP

379

commands such as GET and POST.

380

381

"""

Kristján Valur Jónsson

2009-07-01 10:01:31 +0000

[diff] [blame]

382

try:

Antoine Pitrou

c492437

2010-12-16 16:48:36 +0000

[diff] [blame]

383

self.raw_requestline = self.rfile.readline(65537)

384

if len(self.raw_requestline) > 65536:

385

self.requestline = ''

386

self.request_version = ''

387

self.command = ''

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

388

self.send_error(HTTPStatus.REQUEST_URI_TOO_LONG)

Antoine Pitrou

c492437

2010-12-16 16:48:36 +0000

[diff] [blame]

389

return

Kristján Valur Jónsson

2009-07-01 10:01:31 +0000

[diff] [blame]

390

if not self.raw_requestline:

Benjamin Peterson

2015-02-17 21:11:10 -0500

[diff] [blame]

391

self.close_connection = True

Kristján Valur Jónsson

2009-07-01 10:01:31 +0000

[diff] [blame]

392

return

393

if not self.parse_request():

394

# An error code has been sent, just exit

395

return

396

mname = 'do_' + self.command

397

if not hasattr(self, mname):

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

398

self.send_error(

399

HTTPStatus.NOT_IMPLEMENTED,

400

"Unsupported method (%r)" % self.command)

Kristján Valur Jónsson

2009-07-01 10:01:31 +0000

[diff] [blame]

401

return

402

method = getattr(self, mname)

403

method()

404

self.wfile.flush() #actually send the response if not already done.

405

except socket.timeout as e:

406

#a read or a write timed out. Discard this connection

407

self.log_error("Request timed out: %r", e)

Benjamin Peterson

2015-02-17 21:11:10 -0500

[diff] [blame]

408

self.close_connection = True

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

409

return

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

410

411

def handle(self):

412

"""Handle multiple requests if necessary."""

Benjamin Peterson

2015-02-17 21:11:10 -0500

[diff] [blame]

413

self.close_connection = True

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

414

415

self.handle_one_request()

416

while not self.close_connection:

417

self.handle_one_request()

418

Senthil Kumaran

2013-03-15 07:53:21 -0700

[diff] [blame]

419

def send_error(self, code, message=None, explain=None):

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

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"""Send and log an error reply.

421

Senthil Kumaran

2013-03-15 07:53:21 -0700

[diff] [blame]

422

Arguments are

423

* code: an HTTP error code

424

3 digits

425

* message: a simple optional 1 line reason phrase.

426

*( HTAB / SP / VCHAR / %x80-FF )

427

defaults to short entry matching the response code

428

* explain: a detailed message defaults to the long entry

429

matching the response code.

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

430

431

This sends an error response (so it must be called before any

432

output has been generated), logs the error, and finally sends

433

a piece of HTML explaining the error to the user.

"""

try:

shortmsg, longmsg = self.responses[code]

439

except KeyError:

440

shortmsg, longmsg = '???', '???'

441

if message is None:

442

message = shortmsg

Senthil Kumaran

2013-03-15 07:53:21 -0700

[diff] [blame]

443

if explain is None:

444

explain = longmsg

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

445

self.log_error("code %d, message %s", code, message)

446

# using _quote_html to prevent Cross Site Scripting attacks (see bug #1100201)

447

content = (self.error_message_format %

Senthil Kumaran

2013-03-15 07:53:21 -0700

[diff] [blame]

448

{'code': code, 'message': _quote_html(message), 'explain': _quote_html(explain)})

Senthil Kumaran

52d2720

2012-10-10 23:16:21 -0700

[diff] [blame]

449

body = content.encode('UTF-8', 'replace')

Senthil Kumaran

1e7551d

2013-03-05 02:25:58 -0800

[diff] [blame]

450

self.send_response(code, message)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

451

self.send_header("Content-Type", self.error_content_type)

452

self.send_header('Connection', 'close')

Senthil Kumaran

52d2720

2012-10-10 23:16:21 -0700

[diff] [blame]

453

self.send_header('Content-Length', int(len(body)))

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

454

self.end_headers()

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

455

456

if (self.command != 'HEAD' and

457

code >= 200 and

458

code not in (

459

HTTPStatus.NO_CONTENT, HTTPStatus.NOT_MODIFIED)):

Senthil Kumaran

52d2720

2012-10-10 23:16:21 -0700

[diff] [blame]

460

self.wfile.write(body)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

461

462

def send_response(self, code, message=None):

Senthil Kumaran

2011-05-09 23:25:02 +0800

[diff] [blame]

463

"""Add the response header to the headers buffer and log the

464

response code.

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

465

466

Also send two standard headers with the server software

467

version and the current date.

468

469

"""

470

self.log_request(code)

Senthil Kumaran

0f476d4

2010-09-30 06:09:18 +0000

[diff] [blame]

471

self.send_response_only(code, message)

472

self.send_header('Server', self.version_string())

473

self.send_header('Date', self.date_time_string())

474

475

def send_response_only(self, code, message=None):

476

"""Send the response header only."""

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

477

if message is None:

478

if code in self.responses:

479

message = self.responses[code][0]

480

else:

481

message = ''

482

if self.request_version != 'HTTP/0.9':

Senthil Kumaran

2011-05-09 23:25:02 +0800

[diff] [blame]

483

if not hasattr(self, '_headers_buffer'):

484

self._headers_buffer = []

485

self._headers_buffer.append(("%s %d %s\r\n" %

486

(self.protocol_version, code, message)).encode(

487

'latin-1', 'strict'))

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

488

489

def send_header(self, keyword, value):

Senthil Kumaran

2011-05-09 23:25:02 +0800

[diff] [blame]

490

"""Send a MIME header to the headers buffer."""

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

491

if self.request_version != 'HTTP/0.9':

Senthil Kumaran

e4dad4f

2010-11-21 14:36:14 +0000

[diff] [blame]

492

if not hasattr(self, '_headers_buffer'):

493

self._headers_buffer = []

494

self._headers_buffer.append(

Marc-André Lemburg

8f36af7

2011-02-25 15:42:01 +0000

[diff] [blame]

495

("%s: %s\r\n" % (keyword, value)).encode('latin-1', 'strict'))

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

496

497

if keyword.lower() == 'connection':

498

if value.lower() == 'close':

Benjamin Peterson

2015-02-17 21:11:10 -0500

[diff] [blame]

499

self.close_connection = True

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

500

elif value.lower() == 'keep-alive':

Benjamin Peterson

2015-02-17 21:11:10 -0500

[diff] [blame]

501

self.close_connection = False

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

502

503

def end_headers(self):

504

"""Send the blank line ending the MIME headers."""

505

if self.request_version != 'HTTP/0.9':

Senthil Kumaran

e4dad4f

2010-11-21 14:36:14 +0000

[diff] [blame]

506

self._headers_buffer.append(b"\r\n")

Senthil Kumaran

2011-05-09 23:25:02 +0800

[diff] [blame]

507

self.flush_headers()

508

509

def flush_headers(self):

510

if hasattr(self, '_headers_buffer'):

Senthil Kumaran

e4dad4f

2010-11-21 14:36:14 +0000

[diff] [blame]

511

self.wfile.write(b"".join(self._headers_buffer))

512

self._headers_buffer = []

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

513

514

def log_request(self, code='-', size='-'):

515

"""Log an accepted request.

516

517

This is called by send_response().

518

519

"""

Serhiy Storchaka

c0a23e6

2015-03-07 11:51:37 +0200

[diff] [blame]

520

if isinstance(code, HTTPStatus):

521

code = code.value

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

522

self.log_message('"%s" %s %s',

523

self.requestline, str(code), str(size))

524

525

def log_error(self, format, *args):

526

"""Log an error.

527

528

This is called when a request cannot be fulfilled. By

529

default it passes the message on to log_message().

530

531

Arguments are the same as for log_message().

532

533

XXX This should go to the separate error log.

"""

self.log_message(format, *args)

538

539

def log_message(self, format, *args):

540

"""Log an arbitrary message.

541

542

This is used by all other logging functions. Override

543

it if you have specific logging wishes.

544

545

The first argument, FORMAT, is a format string for the

546

message to be logged. If the format string contains

547

any % escapes requiring parameters, they should be

548

specified as subsequent arguments (it's just like

549

printf!).

550

Senthil Kumaran

db727b4

2012-04-29 13:41:03 +0800

[diff] [blame]

551

The client ip and current date/time are prefixed to

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

every message.

"""

sys.stderr.write("%s - - [%s] %s\n" %

557

(self.address_string(),

558

self.log_date_time_string(),

559

format%args))

560

561

def version_string(self):

562

"""Return the server software version string."""

563

return self.server_version + ' ' + self.sys_version

564

565

def date_time_string(self, timestamp=None):

566

"""Return the current date and time formatted for a message header."""

567

if timestamp is None:

568

timestamp = time.time()

569

year, month, day, hh, mm, ss, wd, y, z = time.gmtime(timestamp)

570

s = "%s, %02d %3s %4d %02d:%02d:%02d GMT" % (

571

self.weekdayname[wd],

572

day, self.monthname[month], year,

hh, mm, ss)

return s

def log_date_time_string(self):

577

"""Return the current time formatted for logging."""

578

now = time.time()

579

year, month, day, hh, mm, ss, x, y, z = time.localtime(now)

580

s = "%02d/%3s/%04d %02d:%02d:%02d" % (

581

day, self.monthname[month], year, hh, mm, ss)

582

return s

583

584

weekdayname = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']

585

586

monthname = [None,

587

'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',

588

'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']

589

590

def address_string(self):

Senthil Kumaran

1aacba4

2012-04-29 12:51:54 +0800

[diff] [blame]

591

"""Return the client address."""

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

592

Senthil Kumaran

1aacba4

2012-04-29 12:51:54 +0800

[diff] [blame]

593

return self.client_address[0]

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

594

595

# Essentially static class variables

596

597

# The version of the HTTP protocol we support.

598

# Set this to HTTP/1.1 to enable automatic keepalive

599

protocol_version = "HTTP/1.0"

600

Barry Warsaw

2008-06-12 04:06:45 +0000

[diff] [blame]

601

# MessageClass used to parse headers

Barry Warsaw

2008-06-12 04:06:45 +0000

[diff] [blame]

602

MessageClass = http.client.HTTPMessage

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

603

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

604

# hack to maintain backwards compatibility

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

605

responses = {

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

606

v: (v.phrase, v.description)

607

for v in HTTPStatus.__members__.values()

608

}

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

609

610

611

class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):

612

613

"""Simple HTTP request handler with GET and HEAD commands.

614

615

This serves files from the current directory and any of its

616

subdirectories. The MIME type for files is determined by

617

calling the .guess_type() method.

618

619

The GET and HEAD requests are identical except that the HEAD

620

request omits the actual contents of the file.

"""

server_version = "SimpleHTTP/" + __version__

625

626

def do_GET(self):

627

"""Serve a GET request."""

628

f = self.send_head()

629

if f:

Serhiy Storchaka

91b0bc2

2014-01-25 19:43:02 +0200

[diff] [blame]

630

try:

631

self.copyfile(f, self.wfile)

632

finally:

633

f.close()

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

634

635

def do_HEAD(self):

636

"""Serve a HEAD request."""

f = self.send_head()

if f:

f.close()

def send_head(self):

"""Common code for GET and HEAD commands.

643

644

This sends the response code and MIME headers.

645

646

Return value is either a file object (which has to be copied

647

to the outputfile by the caller unless the command was HEAD,

648

and must be closed by the caller under all circumstances), or

649

None, in which case the caller has nothing further to do.

650

651

"""

652

path = self.translate_path(self.path)

653

f = None

654

if os.path.isdir(path):

Benjamin Peterson

94cb7a2

2014-12-26 10:53:43 -0600

[diff] [blame]

655

parts = urllib.parse.urlsplit(self.path)

656

if not parts.path.endswith('/'):

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

657

# redirect browser - doing basically what apache does

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

658

self.send_response(HTTPStatus.MOVED_PERMANENTLY)

Benjamin Peterson

94cb7a2

2014-12-26 10:53:43 -0600

[diff] [blame]

659

new_parts = (parts[0], parts[1], parts[2] + '/',

660

parts[3], parts[4])

661

new_url = urllib.parse.urlunsplit(new_parts)

662

self.send_header("Location", new_url)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

663

self.end_headers()

664

return None

665

for index in "index.html", "index.htm":

666

index = os.path.join(path, index)

667

if os.path.exists(index):

path = index

break

else:

return self.list_directory(path)

672

ctype = self.guess_type(path)

673

try:

674

f = open(path, 'rb')

Andrew Svetlov

f7a17b4

2012-12-25 16:47:37 +0200

[diff] [blame]

675

except OSError:

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

676

self.send_error(HTTPStatus.NOT_FOUND, "File not found")

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

677

return None

Serhiy Storchaka

91b0bc2

2014-01-25 19:43:02 +0200

[diff] [blame]

678

try:

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

679

self.send_response(HTTPStatus.OK)

Serhiy Storchaka

91b0bc2

2014-01-25 19:43:02 +0200

[diff] [blame]

680

self.send_header("Content-type", ctype)

681

fs = os.fstat(f.fileno())

682

self.send_header("Content-Length", str(fs[6]))

683

self.send_header("Last-Modified", self.date_time_string(fs.st_mtime))

self.end_headers()

return f

except:

f.close()

raise

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

689

690

def list_directory(self, path):

691

"""Helper to produce a directory listing (absent index.html).

692

693

Return value is either a file object, or None (indicating an

694

error). In either case, the headers are sent, making the

695

interface the same as for send_head().

"""

try:

list = os.listdir(path)

Andrew Svetlov

ad28c7f

2012-12-18 22:02:39 +0200

[diff] [blame]

700

except OSError:

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

701

self.send_error(

702

HTTPStatus.NOT_FOUND,

703

"No permission to list directory")

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

704

return None

705

list.sort(key=lambda a: a.lower())

706

r = []

Serhiy Storchaka

2014-08-17 08:22:11 +0300

[diff] [blame]

707

try:

708

displaypath = urllib.parse.unquote(self.path,

709

errors='surrogatepass')

710

except UnicodeDecodeError:

711

displaypath = urllib.parse.unquote(path)

712

displaypath = html.escape(displaypath)

Ezio Melotti

2011-11-02 19:33:29 +0200

[diff] [blame]

713

enc = sys.getfilesystemencoding()

714

title = 'Directory listing for %s' % displaypath

715

r.append('<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" '

716

'"http://www.w3.org/TR/html4/strict.dtd">')

717

r.append('<html>\n<head>')

718

r.append('<meta http-equiv="Content-Type" '

719

'content="text/html; charset=%s">' % enc)

720

r.append('<title>%s</title>\n</head>' % title)

721

r.append('<body>\n<h1>%s</h1>' % title)

722

r.append('<hr>\n<ul>')

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

723

for name in list:

724

fullname = os.path.join(path, name)

725

displayname = linkname = name

726

# Append / for directories or @ for symbolic links

727

if os.path.isdir(fullname):

728

displayname = name + "/"

729

linkname = name + "/"

730

if os.path.islink(fullname):

731

displayname = name + "@"

732

# Note: a link to a directory displays with @ and links with /

Ezio Melotti

2011-11-02 19:33:29 +0200

[diff] [blame]

733

r.append('<li><a href="%s">%s</a></li>'

Serhiy Storchaka

2014-08-17 08:22:11 +0300

[diff] [blame]

734

% (urllib.parse.quote(linkname,

735

errors='surrogatepass'),

736

html.escape(displayname)))

Ezio Melotti

2011-11-02 19:33:29 +0200

[diff] [blame]

737

r.append('</ul>\n<hr>\n</body>\n</html>\n')

Serhiy Storchaka

2014-08-17 08:22:11 +0300

[diff] [blame]

738

encoded = '\n'.join(r).encode(enc, 'surrogateescape')

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

739

f = io.BytesIO()

740

f.write(encoded)

741

f.seek(0)

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

742

self.send_response(HTTPStatus.OK)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

743

self.send_header("Content-type", "text/html; charset=%s" % enc)

744

self.send_header("Content-Length", str(len(encoded)))

self.end_headers()

return f

def translate_path(self, path):

749

"""Translate a /-separated PATH to the local filename syntax.

750

751

Components that mean special things to the local file system

752

(e.g. drive or directory names) are ignored. (XXX They should

753

probably be diagnosed.)

754

755

"""

756

# abandon query parameters

757

path = path.split('?',1)[0]

758

path = path.split('#',1)[0]

Senthil Kumaran

72c238e

2013-09-13 00:21:18 -0700

[diff] [blame]

759

# Don't forget explicit trailing slash when normalizing. Issue17324

Senthil Kumaran

600b735

2013-09-29 18:59:04 -0700

[diff] [blame]

760

trailing_slash = path.rstrip().endswith('/')

Serhiy Storchaka

2014-08-17 08:22:11 +0300

[diff] [blame]

761

try:

762

path = urllib.parse.unquote(path, errors='surrogatepass')

763

except UnicodeDecodeError:

764

path = urllib.parse.unquote(path)

765

path = posixpath.normpath(path)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

766

words = path.split('/')

767

words = filter(None, words)

768

path = os.getcwd()

769

for word in words:

770

drive, word = os.path.splitdrive(word)

771

head, word = os.path.split(word)

772

if word in (os.curdir, os.pardir): continue

773

path = os.path.join(path, word)

Senthil Kumaran

72c238e

2013-09-13 00:21:18 -0700

[diff] [blame]

774

if trailing_slash:

775

path += '/'

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

776

return path

777

778

def copyfile(self, source, outputfile):

779

"""Copy all data between two file objects.

780

781

The SOURCE argument is a file object open for reading

782

(or anything with a read() method) and the DESTINATION

783

argument is a file object open for writing (or

784

anything with a write() method).

785

786

The only reason for overriding this would be to change

787

the block size or perhaps to replace newlines by CRLF

788

-- note however that this the default server uses this

789

to copy binary data as well.

790

791

"""

792

shutil.copyfileobj(source, outputfile)

793

794

def guess_type(self, path):

795

"""Guess the type of a file.

796

797

Argument is a PATH (a filename).

798

799

Return value is a string of the form type/subtype,

800

usable for a MIME Content-type header.

801

802

The default implementation looks the file's extension

803

up in the table self.extensions_map, using application/octet-stream

804

as a default; however it would be permissible (if

805

slow) to look inside the data to make a better guess.

"""

base, ext = posixpath.splitext(path)

810

if ext in self.extensions_map:

811

return self.extensions_map[ext]

812

ext = ext.lower()

813

if ext in self.extensions_map:

814

return self.extensions_map[ext]

815

else:

816

return self.extensions_map['']

817

818

if not mimetypes.inited:

819

mimetypes.init() # try to read system mime.types

820

extensions_map = mimetypes.types_map.copy()

821

extensions_map.update({

822

'': 'application/octet-stream', # Default

'.py': 'text/plain',

'.c': 'text/plain',

'.h': 'text/plain',

})

# Utilities for CGIHTTPRequestHandler

830

Senthil Kumaran

2012-04-12 02:34:32 +0800

[diff] [blame]

831

def _url_collapse_path(path):

Benjamin Peterson

2009-04-11 20:12:10 +0000

[diff] [blame]

832

"""

833

Given a URL path, remove extra '/'s and '.' path elements and collapse

Senthil Kumaran

2012-04-12 02:34:32 +0800

[diff] [blame]

834

any '..' references and returns a colllapsed path.

Benjamin Peterson

2009-04-11 20:12:10 +0000

[diff] [blame]

835

836

Implements something akin to RFC-2396 5.2 step 6 to parse relative paths.

Senthil Kumaran

2012-04-12 02:34:32 +0800

[diff] [blame]

837

The utility of this function is limited to is_cgi method and helps

838

preventing some security attacks.

Benjamin Peterson

2009-04-11 20:12:10 +0000

[diff] [blame]

839

840

Returns: A tuple of (head, tail) where tail is everything after the final /

841

and head is everything before it. Head will always start with a '/' and,

842

if it contains anything else, never have a trailing '/'.

843

844

Raises: IndexError if too many '..' occur within the path.

Senthil Kumaran

2012-04-12 02:34:32 +0800

[diff] [blame]

845

Benjamin Peterson

2009-04-11 20:12:10 +0000

[diff] [blame]

846

"""

847

# Similar to os.path.split(os.path.normpath(path)) but specific to URL

848

# path semantics rather than local operating system semantics.

Senthil Kumaran

2012-04-12 02:34:32 +0800

[diff] [blame]

849

path_parts = path.split('/')

850

head_parts = []

851

for part in path_parts[:-1]:

852

if part == '..':

853

head_parts.pop() # IndexError if more '..' than prior parts

854

elif part and part != '.':

855

head_parts.append( part )

Benjamin Peterson

2009-04-11 20:12:10 +0000

[diff] [blame]

856

if path_parts:

Senthil Kumaran

dbb369d

2012-04-11 03:15:28 +0800

[diff] [blame]

857

tail_part = path_parts.pop()

Senthil Kumaran

2012-04-12 02:34:32 +0800

[diff] [blame]

858

if tail_part:

859

if tail_part == '..':

860

head_parts.pop()

861

tail_part = ''

862

elif tail_part == '.':

863

tail_part = ''

Benjamin Peterson

2009-04-11 20:12:10 +0000

[diff] [blame]

864

else:

865

tail_part = ''

Senthil Kumaran

2012-04-12 02:34:32 +0800

[diff] [blame]

866

867

splitpath = ('/' + '/'.join(head_parts), tail_part)

868

collapsed_path = "/".join(splitpath)

869

870

return collapsed_path

871

Benjamin Peterson

2009-04-11 20:12:10 +0000

[diff] [blame]

872

873

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

nobody = None

def nobody_uid():

"""Internal routine to get nobody's uid"""

global nobody

if nobody:

return nobody

try:

import pwd

Brett Cannon

cd171c8

2013-07-04 17:43:24 -0400

[diff] [blame]

883

except ImportError:

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

884

return -1

885

try:

886

nobody = pwd.getpwnam('nobody')[2]

887

except KeyError:

Georg Brandl

cbd2ab1

2010-12-04 10:39:14 +0000

[diff] [blame]

888

nobody = 1 + max(x[2] for x in pwd.getpwall())

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

return nobody

def executable(path):

893

"""Test for executable file."""

Victor Stinner

fb25ba9

2011-06-20 17:45:54 +0200

[diff] [blame]

894

return os.access(path, os.X_OK)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

895

896

897

class CGIHTTPRequestHandler(SimpleHTTPRequestHandler):

898

899

"""Complete HTTP server with GET, HEAD and POST commands.

900

901

GET and HEAD also support running CGI scripts.

902

903

The POST command is *only* implemented for CGI scripts.

"""

# Determine platform specifics

908

have_fork = hasattr(os, 'fork')

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

909

910

# Make rfile unbuffered -- we need to read one line and then pass

911

# the rest to a subprocess, so we can't use buffered input.

rbufsize = 0

def do_POST(self):

"""Serve a POST request.

916

917

This is only implemented for CGI scripts.

"""

if self.is_cgi():

self.run_cgi()

else:

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

924

self.send_error(

925

HTTPStatus.NOT_IMPLEMENTED,

926

"Can only POST to CGI scripts")

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

927

928

def send_head(self):

929

"""Version of send_head that support CGI scripts"""

930

if self.is_cgi():

931

return self.run_cgi()

932

else:

933

return SimpleHTTPRequestHandler.send_head(self)

934

935

def is_cgi(self):

936

"""Test whether self.path corresponds to a CGI script.

937

Benjamin Peterson

2009-04-11 20:12:10 +0000

[diff] [blame]

938

Returns True and updates the cgi_info attribute to the tuple

939

(dir, rest) if self.path requires running a CGI script.

940

Returns False otherwise.

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

941

Benjamin Peterson

a7deeee

2009-05-08 20:54:42 +0000

[diff] [blame]

942

If any exception is raised, the caller should assume that

943

self.path was rejected as invalid and act accordingly.

944

Benjamin Peterson

2009-04-11 20:12:10 +0000

[diff] [blame]

945

The default implementation tests whether the normalized url

946

path begins with one of the strings in self.cgi_directories

947

(and the next character is a '/' or the end of the string).

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

948

949

"""

Benjamin Peterson

73b8b1c

2014-06-14 18:36:29 -0700

[diff] [blame]

950

collapsed_path = _url_collapse_path(urllib.parse.unquote(self.path))

Senthil Kumaran

2012-04-12 02:34:32 +0800

[diff] [blame]

951

dir_sep = collapsed_path.find('/', 1)

952

head, tail = collapsed_path[:dir_sep], collapsed_path[dir_sep+1:]

Senthil Kumaran

dbb369d

2012-04-11 03:15:28 +0800

[diff] [blame]

953

if head in self.cgi_directories:

954

self.cgi_info = head, tail

Benjamin Peterson

2009-04-11 20:12:10 +0000

[diff] [blame]

955

return True

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

956

return False

957

Senthil Kumaran

2012-04-12 02:34:32 +0800

[diff] [blame]

958

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

959

cgi_directories = ['/cgi-bin', '/htbin']

960

961

def is_executable(self, path):

962

"""Test whether argument path is an executable file."""

963

return executable(path)

964

965

def is_python(self, path):

966

"""Test whether argument path is a Python script."""

967

head, tail = os.path.splitext(path)

968

return tail.lower() in (".py", ".pyw")

969

970

def run_cgi(self):

971

"""Execute a CGI script."""

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

972

dir, rest = self.cgi_info

Ned Deily

915a30f

2014-07-12 22:06:26 -0700

[diff] [blame]

973

path = dir + '/' + rest

974

i = path.find('/', len(dir)+1)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

975

while i >= 0:

Ned Deily

915a30f

2014-07-12 22:06:26 -0700

[diff] [blame]

976

nextdir = path[:i]

977

nextrest = path[i+1:]

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

978

979

scriptdir = self.translate_path(nextdir)

980

if os.path.isdir(scriptdir):

981

dir, rest = nextdir, nextrest

Ned Deily

915a30f

2014-07-12 22:06:26 -0700

[diff] [blame]

982

i = path.find('/', len(dir)+1)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

else:

break

# find an explicit query string, if present.

987

i = rest.rfind('?')

988

if i >= 0:

989

rest, query = rest[:i], rest[i+1:]

else:

query = ''

# dissect the part after the directory name into a script name &

994

# a possible additional path, to be stored in PATH_INFO.

995

i = rest.find('/')

996

if i >= 0:

997

script, rest = rest[:i], rest[i:]

998

else:

999

script, rest = rest, ''

1000

1001

scriptname = dir + '/' + script

1002

scriptfile = self.translate_path(scriptname)

1003

if not os.path.exists(scriptfile):

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

1004

self.send_error(

1005

HTTPStatus.NOT_FOUND,

1006

"No such CGI script (%r)" % scriptname)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1007

return

1008

if not os.path.isfile(scriptfile):

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

1009

self.send_error(

1010

HTTPStatus.FORBIDDEN,

1011

"CGI script is not a plain file (%r)" % scriptname)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1012

return

1013

ispy = self.is_python(scriptname)

Victor Stinner

fb25ba9

2011-06-20 17:45:54 +0200

[diff] [blame]

1014

if self.have_fork or not ispy:

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1015

if not self.is_executable(scriptfile):

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

1016

self.send_error(

1017

HTTPStatus.FORBIDDEN,

1018

"CGI script is not executable (%r)" % scriptname)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1019

return

1020

1021

# Reference: http://hoohoo.ncsa.uiuc.edu/cgi/env.html

1022

# XXX Much of the following could be prepared ahead of time!

Senthil Kumaran

2010-10-03 17:55:45 +0000

[diff] [blame]

1023

env = copy.deepcopy(os.environ)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1024

env['SERVER_SOFTWARE'] = self.version_string()

1025

env['SERVER_NAME'] = self.server.server_name

1026

env['GATEWAY_INTERFACE'] = 'CGI/1.1'

1027

env['SERVER_PROTOCOL'] = self.protocol_version

1028

env['SERVER_PORT'] = str(self.server.server_port)

1029

env['REQUEST_METHOD'] = self.command

Jeremy Hylton

1afc169

2008-06-18 20:49:58 +0000

[diff] [blame]

1030

uqrest = urllib.parse.unquote(rest)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1031

env['PATH_INFO'] = uqrest

1032

env['PATH_TRANSLATED'] = self.translate_path(uqrest)

1033

env['SCRIPT_NAME'] = scriptname

1034

if query:

1035

env['QUERY_STRING'] = query

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1036

env['REMOTE_ADDR'] = self.client_address[0]

Barry Warsaw

2008-06-12 04:06:45 +0000

[diff] [blame]

1037

authorization = self.headers.get("authorization")

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1038

if authorization:

1039

authorization = authorization.split()

1040

if len(authorization) == 2:

1041

import base64, binascii

1042

env['AUTH_TYPE'] = authorization[0]

1043

if authorization[0].lower() == "basic":

1044

try:

1045

authorization = authorization[1].encode('ascii')

Georg Brandl

706824f

2009-06-04 09:42:55 +0000

[diff] [blame]

1046

authorization = base64.decodebytes(authorization).\

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1047

decode('ascii')

1048

except (binascii.Error, UnicodeError):

1049

pass

1050

else:

1051

authorization = authorization.split(':')

1052

if len(authorization) == 2:

1053

env['REMOTE_USER'] = authorization[0]

1054

# XXX REMOTE_IDENT

Barry Warsaw

2008-06-12 04:06:45 +0000

[diff] [blame]

1055

if self.headers.get('content-type') is None:

1056

env['CONTENT_TYPE'] = self.headers.get_content_type()

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1057

else:

Barry Warsaw

2008-06-12 04:06:45 +0000

[diff] [blame]

1058

env['CONTENT_TYPE'] = self.headers['content-type']

1059

length = self.headers.get('content-length')

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1060

if length:

1061

env['CONTENT_LENGTH'] = length

Barry Warsaw

2008-06-12 04:06:45 +0000

[diff] [blame]

1062

referer = self.headers.get('referer')

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1063

if referer:

1064

env['HTTP_REFERER'] = referer

1065

accept = []

1066

for line in self.headers.getallmatchingheaders('accept'):

1067

if line[:1] in "\t\n\r ":

1068

accept.append(line.strip())

1069

else:

1070

accept = accept + line[7:].split(',')

1071

env['HTTP_ACCEPT'] = ','.join(accept)

Barry Warsaw

2008-06-12 04:06:45 +0000

[diff] [blame]

1072

ua = self.headers.get('user-agent')

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1073

if ua:

1074

env['HTTP_USER_AGENT'] = ua

Barry Warsaw

2008-06-12 04:06:45 +0000

[diff] [blame]

1075

co = filter(None, self.headers.get_all('cookie', []))

Georg Brandl

62e2ca2

2010-07-31 21:54:24 +0000

[diff] [blame]

1076

cookie_str = ', '.join(co)

1077

if cookie_str:

1078

env['HTTP_COOKIE'] = cookie_str

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1079

# XXX Other HTTP_* headers

1080

# Since we're setting the env in the parent, provide empty

1081

# values to override previously set values

1082

for k in ('QUERY_STRING', 'REMOTE_HOST', 'CONTENT_LENGTH',

1083

'HTTP_USER_AGENT', 'HTTP_COOKIE', 'HTTP_REFERER'):

1084

env.setdefault(k, "")

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1085

Serhiy Storchaka

2014-12-23 16:28:28 +0200

[diff] [blame]

1086

self.send_response(HTTPStatus.OK, "Script output follows")

Senthil Kumaran

2011-05-09 23:25:02 +0800

[diff] [blame]

1087

self.flush_headers()

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1088

1089

decoded_query = query.replace('+', ' ')

1090

1091

if self.have_fork:

1092

# Unix -- fork as we should

1093

args = [script]

1094

if '=' not in decoded_query:

1095

args.append(decoded_query)

1096

nobody = nobody_uid()

1097

self.wfile.flush() # Always flush before forking

pid = os.fork()

if pid != 0:

# Parent

pid, sts = os.waitpid(pid, 0)

1102

# throw away additional data [see bug #427345]

1103

while select.select([self.rfile], [], [], 0)[0]:

1104

if not self.rfile.read(1):

1105

break

1106

if sts:

1107

self.log_error("CGI script exit status %#x", sts)

return

# Child

try:

try:

os.setuid(nobody)

Andrew Svetlov

ad28c7f

2012-12-18 22:02:39 +0200

[diff] [blame]

1113

except OSError:

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1114

pass

1115

os.dup2(self.rfile.fileno(), 0)

1116

os.dup2(self.wfile.fileno(), 1)

Senthil Kumaran

2010-10-03 17:55:45 +0000

[diff] [blame]

1117

os.execve(scriptfile, args, env)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1118

except:

1119

self.server.handle_error(self.request, self.client_address)

1120

os._exit(127)

1121

Amaury Forgeot d'Arc

2008-06-18 22:19:22 +0000

[diff] [blame]

1122

else:

1123

# Non-Unix -- use subprocess

1124

import subprocess

Senthil Kumaran

e29cd16

2009-11-11 04:17:53 +0000

[diff] [blame]

1125

cmdline = [scriptfile]

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1126

if self.is_python(scriptfile):

1127

interp = sys.executable

1128

if interp.lower().endswith("w.exe"):

1129

# On Windows, use python.exe, not pythonw.exe

1130

interp = interp[:-5] + interp[-4:]

Senthil Kumaran

e29cd16

2009-11-11 04:17:53 +0000

[diff] [blame]

1131

cmdline = [interp, '-u'] + cmdline

1132

if '=' not in query:

1133

cmdline.append(query)

1134

self.log_message("command: %s", subprocess.list2cmdline(cmdline))

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1135

try:

1136

nbytes = int(length)

1137

except (TypeError, ValueError):

1138

nbytes = 0

Amaury Forgeot d'Arc

2008-06-18 22:19:22 +0000

[diff] [blame]

1139

p = subprocess.Popen(cmdline,

1140

stdin=subprocess.PIPE,

1141

stdout=subprocess.PIPE,

Senthil Kumaran

2010-10-03 17:55:45 +0000

[diff] [blame]

1142

stderr=subprocess.PIPE,

1143

env = env

Amaury Forgeot d'Arc

2008-06-18 22:19:22 +0000

[diff] [blame]

1144

)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1145

if self.command.lower() == "post" and nbytes > 0:

1146

data = self.rfile.read(nbytes)

Amaury Forgeot d'Arc

2008-06-18 22:19:22 +0000

[diff] [blame]

1147

else:

1148

data = None

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1149

# throw away additional data [see bug #427345]

1150

while select.select([self.rfile._sock], [], [], 0)[0]:

1151

if not self.rfile._sock.recv(1):

1152

break

Amaury Forgeot d'Arc

2008-06-18 22:19:22 +0000

[diff] [blame]

1153

stdout, stderr = p.communicate(data)

1154

self.wfile.write(stdout)

1155

if stderr:

1156

self.log_error('%s', stderr)

Brian Curtin

cbad4df

2010-11-05 15:04:48 +0000

[diff] [blame]

1157

p.stderr.close()

1158

p.stdout.close()

Amaury Forgeot d'Arc

2008-06-18 22:19:22 +0000

[diff] [blame]

1159

status = p.returncode

1160

if status:

1161

self.log_error("CGI script exit status %#x", status)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1162

else:

1163

self.log_message("CGI script exited OK")

1164

1165

Senthil Kumaran

2013-09-15 09:37:27 -0700

[diff] [blame]

1166

def test(HandlerClass=BaseHTTPRequestHandler,

1167

ServerClass=HTTPServer, protocol="HTTP/1.0", port=8000, bind=""):

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1168

"""Test the HTTP request handler class.

1169

1170

This runs an HTTP server on port 8000 (or the first command line

1171

argument).

1172

1173

"""

Senthil Kumaran

2013-09-15 09:37:27 -0700

[diff] [blame]

1174

server_address = (bind, port)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1175

1176

HandlerClass.protocol_version = protocol

1177

httpd = ServerClass(server_address, HandlerClass)

1178

1179

sa = httpd.socket.getsockname()

1180

print("Serving HTTP on", sa[0], "port", sa[1], "...")

Alexandre Vassalotti

b5292a2

2009-04-03 07:16:55 +0000

[diff] [blame]

1181

try:

1182

httpd.serve_forever()

1183

except KeyboardInterrupt:

1184

print("\nKeyboard interrupt received, exiting.")

1185

httpd.server_close()

1186

sys.exit(0)

Georg Brandl

2008-05-26 16:32:26 +0000

[diff] [blame]

1187

1188

if __name__ == '__main__':

Senthil Kumaran

2012-06-03 16:15:54 +0800

[diff] [blame]

1189

parser = argparse.ArgumentParser()

1190

parser.add_argument('--cgi', action='store_true',

1191

help='Run as CGI Server')

Senthil Kumaran

2013-09-15 09:37:27 -0700

[diff] [blame]

1192

parser.add_argument('--bind', '-b', default='', metavar='ADDRESS',

1193

help='Specify alternate bind address '

1194

'[default: all interfaces]')

Senthil Kumaran

2012-06-03 16:15:54 +0800

[diff] [blame]

1195

parser.add_argument('port', action='store',

1196

default=8000, type=int,

1197

nargs='?',

1198

help='Specify alternate port [default: 8000]')

1199

args = parser.parse_args()

1200

if args.cgi:

Senthil Kumaran

2013-09-15 09:37:27 -0700

[diff] [blame]

1201

handler_class = CGIHTTPRequestHandler

Senthil Kumaran

2012-06-03 16:15:54 +0800

[diff] [blame]

1202

else:

Senthil Kumaran