Python implements a simple HTTP server that can upload and download

This article mainly introduces the use of Python to implement a simple upload download HTTP server, is the basis of Python network programming learning, this article is based on Windows operating system implementation, the need for friends can refer to the following

#! / usr / bin / env python
# coding = utf-8
# modifyDate: 20120808 ~ 20120810
# The original author is: bones7456, http://li2z.cn/
# Modified by: decli@qq.com
# v1.2, changeLog:
# +: File date / time / color display, multi-thread support, homepage jump
#-: Solve the problem of garbled file names uploaded in different browsers: only IE, other browsers are not processed temporarily.
#-: Some path display bugs, mainly cgi.escape () escape problem
#?: Note that the server path of direct compilation under notepad ++
 
"" "
  Introduction: This is a lightweight file sharing server written in Python (based on the built-in SimpleHTTPServer module),
  Support file upload and download, as long as you have installed python (recommended version 2.6 ~ 2.7, does not support 3.x),
  Then go to the directory you want to share and execute:
    python SimpleHTTPServerWithUpload.py 1234
  Where 1234 is the port number you specified, if not written, the default is 8080
  Then visit http: // localhost: 1234, localhost or 1234 please replace as appropriate.
"" "
 
"" "Simple HTTP Server With Upload.
 
This module builds on BaseHTTPServer by implementing the standard GET
and HEAD requests in a fairly straightforward manner.
 
"" "
 
__version__ = "0.1"
__all__ = ["SimpleHTTPRequestHandler"]
__author__ = "bones7456"
__home_page__ = ""
 
import os, sys, platform
import posixpath
import BaseHTTPServer
from SocketServer import ThreadingMixIn
import threading
import urllib, urllib2
import cgi
import shutil
import mimetypes
import re
import time
 
try:
  from cStringIO import StringIO
except ImportError:
  from StringIO import StringIO
   
def get_ip_address (ifname):
  import socket
  import fcntl
  import struct
  s = socket.socket (socket.AF_INET, socket.SOCK_DGRAM)
  return socket.inet_ntoa (fcntl.ioctl (
    s.fileno (),
    0x8915, # SIOCGIFADDR
    struct.pack ('256s', ifname [: 15])
  ) [20:24])
 
class GetWanIp:
  def getip (self):
    try:
      myip = self.visit ("http://ip.taobao.com/service/getIpInfo.php?ip=myip")
    except:
      print "ip.taobao.com is Error"
      try:
        myip = self.visit ("http://www.bliao.com/ip.phtml")
      except:
        print "bliao.com is Error"
        try:
          myip = self.visit ("http://www.whereismyip.com/")
        except: # 'NoneType' object has no attribute 'group'
          print "whereismyip is Error"
          myip = "127.0.0.1"
    return myip
  def visit (self, url):
    #req = urllib2.Request (url)
    #values = {'User-Agent': 'Mozilla / 5.0 (Windows NT 6.1) AppleWebKit / 537.31 (KHTML, like Gecko) Chrome / 26.0.1410.64 Safari / 537',
    # 'Referer': 'http://ip.taobao.com/ipSearch.php',
    # 'ip': 'myip'
    #}
    #data = urllib.urlencode (values)
    opener = urllib2.urlopen (url, None, 3)
    if url == opener.geturl ():
      str = opener.read ()
    return re.search ('(\ d + \.) {3} \ d +', str) .group (0)
 
def showTips ():
  print ""
  print '------------------------------------------------ ----------------------- >> '
  try:
    port = int (sys.argv [1])
  except Exception, e:
    print '-------- >> Warning: Port is not given, will use deafult port: 8080'
    print '-------- >> if you want to use other port, please execute:'
    print '-------- >> python SimpleHTTPServerWithUpload.py port'
    print "-------- >> port is a integer and it's range: 1024 <port <65535"
    port = 8080
   
  if not 1024 <port <65535: port = 8080
  # serveraddr = ('', port)
  print '-------- >> Now, listening at port' + str (port) + '...'
  osType = platform.system ()
  if osType == "Linux":
    print '-------- >> You can visit the URL: http: //' + GetWanIp (). getip () + ':' + str (port)
  else:
    print '-------- >> You can visit the URL: http://127.0.0.1:' + str (port)
  print '------------------------------------------------ ----------------------- >> '
  print ""
  return ('', port)
 
serveraddr = showTips ()
 
def sizeof_fmt (num):
  for x in ['bytes', 'KB', 'MB', 'GB']:
    if num <1024.0:
      return "% 3.1f% s"% (num, x)
    num / = 1024.0
  return "% 3.1f% s"% (num, 'TB')
 
def modification_date (filename):
  # t = os.path.getmtime (filename)
  # return datetime.datetime.fromtimestamp (t)
  return time.strftime ("% Y-% m-% d% H:% M:% S", time.localtime (os.path.getmtime (filename)))
 
class SimpleHTTPRequestHandler (BaseHTTPServer.BaseHTTPRequestHandler):
 
  "" "Simple HTTP request handler with GET / HEAD / POST commands.
 
  This serves files from the current directory and any of its
  subdirectories. The MIME type for files is determined by
  calling the .guess_type () method. And can reveive file uploaded
  by client.
 
  The GET / HEAD / POST requests are identical except that the HEAD
  request omits the actual contents of the file.
 
  "" "
 
  server_version = "SimpleHTTPWithUpload /" + __version__
 
  def do_GET (self):
    "" "Serve a GET request." ""
    # print "....................", threading.currentThread (). getName ()
    f = self.send_head ()
    if f:
      self.copyfile (f, self.wfile)
      f.close ()
 
  def do_HEAD (self):
    "" "Serve a HEAD request." ""
    f = self.send_head ()
    if f:
      f.close ()
 
  def do_POST (self):
    "" "Serve a POST request." ""
    r, info = self.deal_post_data ()
    print r, info, "by:", self.client_address
    f = StringIO ()
    f.write ('<! DOCTYPE html PUBLIC "-// W3C // DTD HTML 3.2 Final // EN">')
    f.write ("<html> \ n <title> Upload Result Page </ title> \ n")
    f.write ("<body> \ n <h2> Upload Result Page </ h2> \ n")
    f.write ("<hr> \ n")
    if r:
      f.write ("<strong> Success: </ strong>")
    else:
f.write ("<strong> Failed: </ strong>")
    f.write (info)
    f.write ("<br> <a href=\"%s\"> back </a>"% self.headers ['referer'])
    f.write ("<hr> <small> Powered By: bones7456, check new version at")
    f.write ("<a href=\"http://li2z.cn/?s=SimpleHTTPServerWithUpload\">")
    f.write ("here </a>. </ small> </ body> \ n </ html> \ n")
    length = f.tell ()
    f.seek (0)
    self.send_response (200)
    self.send_header ("Content-type", "text / html")
    self.send_header ("Content-Length", str (length))
    self.end_headers ()
    if f:
      self.copyfile (f, self.wfile)
      f.close ()
     
  def deal_post_data (self):
    boundary = self.headers.plisttext.split ("=") [1]
    remainbytes = int (self.headers ['content-length'])
    line = self.rfile.readline ()
    remainbytes-= len (line)
    if not boundary in line:
      return (False, "Content NOT begin with boundary")
    line = self.rfile.readline ()
    remainbytes-= len (line)
    fn = re.findall (r'Content-Disposition. * name = "file"; filename = "(. *)" ', line)
    if not fn:
      return (False, "Can't find out file name ...")
    path = self.translate_path (self.path)
    osType = platform.system ()
    try:
      if osType == "Linux":
        fn = os.path.join (path, fn [0] .decode ('gbk'). encode ('utf-8'))
      else:
        fn = os.path.join (path, fn [0])
    except Exception, e:
      return (False, "Please do not use Chinese for the file name, or use IE to upload the file with Chinese name.")
    while os.path.exists (fn):
      fn + = "_"
    line = self.rfile.readline ()
    remainbytes-= len (line)
    line = self.rfile.readline ()
    remainbytes-= len (line)
    try:
      out = open (fn, 'wb')
    except IOError:
      return (False, "Can't create file to write, do you have permission to write?")
         
    preline = self.rfile.readline ()
    remainbytes-= len (preline)
    while remainbytes> 0:
      line = self.rfile.readline ()
      remainbytes-= len (line)
      if boundary in line:
        preline = preline [0: -1]
        if preline.endswith ('\ r'):
          preline = preline [0: -1]
        out.write (preline)
        out.close ()
        return (True, "File '% s' upload success!"% fn)
      else:
        out.write (preline)
        preline = line
    return (False, "Unexpect Ends of data.")
 
  def send_head (self):
    "" "Common code for GET and HEAD commands.
 
    This sends the response code and MIME headers.
 
    Return value is either a file object (which has to be copied
    to the outputfile by the caller unless the command was HEAD,
    and must be closed by the caller under all circumstances), or
    None, in which case the caller has nothing further to do.
 
    "" "
    path = self.translate_path (self.path)
    f = None
    if os.path.isdir (path):
      if not self.path.endswith ('/'):
        # redirect browser-doing basically what apache does
        self.send_response (301)
        self.send_header ("Location", self.path + "/")
        self.end_headers ()
        return None
      for index in "index.html", "index.htm":
        index = os.path.join (path, index)
        if os.path.exists (index):
          path = index
          break
      else:
        return self.list_directory (path)
    ctype = self.guess_type (path)
    try:
      # Always read in binary mode. Opening files in text mode may cause
      # newline translations, making the actual size of the content
      # transmitted * less * than the content-length!
      f = open (path, 'rb')
    except IOError:
      self.send_error (404, "File not found")
      return None
    self.send_response (200)
    self.send_header ("Content-type", ctype)
    fs = os.fstat (f.fileno ())
    self.send_header ("Content-Length", str (fs [6]))
    self.send_header ("Last-Modified", self.date_time_string (fs.st_mtime))
    self.end_headers ()
    return f
 
  def list_directory (self, path):
    "" "Helper to produce a directory listing (absent index.html).
 
    Return value is either a file object, or None (indicating an
    error). In either case, the headers are sent, making the
    interface the same as for send_head ().
 
    "" "
    try:
      list = os.listdir (path)
    except os.error:
      self.send_error (404, "No permission to list directory")
      return None
    list.sort (key = lambda a: a.lower ())
    f = StringIO ()
    displaypath = cgi.escape (urllib.unquote (self.path))
    f.write ('<! DOCTYPE html PUBLIC "-// W3C // DTD HTML 3.2 Final // EN">')
    f.write ("<html> \ n <title> Directory listing for% s </ title> \ n"% displaypath)
    f.write ("<body> \ n <h2> Directory listing for% s </ h2> \ n"% displaypath)
    f.write ("<hr> \ n")
    f.write ("<form ENCTYPE = \" multipart / form-data \ "method = \" post \ ">")
    f.write ("<input name = \" file \ "type = \" file \ "/>")
    f.write ("<input type = \" submit \ "value = \" upload \ "/>")
    f.write ("")
    f.write ("<input type = \" button \ "value = \" HomePage \ "onClick = \" location = '/' \ ">")
    f.write ("</ form> \ n")
    f.write ("<hr> \ n <ul> \ n")
    for name in list:
      fullname = os.path.join (path, name)
      colorName = displayname = linkname = name
      # Append / for directories or @ for symbolic links
      if os.path.isdir (fullname):
        colorName = '<span style = "background-color: #CEFFCE;">' + name + '/ </ span>'
        displayname = name
        linkname = name + "/"
      if os.path.islink (fullname):
        colorName = '<span style = "background-color: #FFBFFF;">' + name + '@ </ span>'
        displayname = name
        # Note: a link to a directory displays with @ and links with /
      filename = os.getcwd () + '/' + displaypath + displayname
      f.write ('<table> <tr> <td width = "60 %%"> <a href="%s">% s </a> </ td> <td width = "20 %%"> % s </ td> <td width = "20 %%">% s </ td> </ tr> \ n '
          % (urllib.quote (linkname), colorName,
            sizeof_fmt (os.path.getsize (filename)), modification_date (filename)))
    f.write ("</ table> \ n <hr> \ n </ body> \ n </ html> \ n")
    length = f.tell ()
    f.seek (0)
    self.send_response (200)
    self.send_header ("Content-type", "text / html")
    self.send_header ("Content-Length", str (length))
    self.end_headers ()
    return f
 
  def translate_path (self, path):
    "" "Translate a / -separated PATH to the local filename syntax.
 
    Components that mean special things to the local file system
    (e.g. drive or directory names) are ignored. (XXX They should
    probably be diagnosed.)
 
    "" "
    # abandon query parameters
    path = path.split ('?', 1) [0]
    path = path.split ('#', 1) [0]
    path = posixpath.normpath (urllib.unquote (path))
    words = path.split ('/')
    words = filter (None, words)
    path = os.getcwd ()
    for word in words:
      drive, word = os.path.splitdrive (word)
      head, word = os.path.split (word)
      if word in (os.curdir, os.pardir): continue
      path = os.path.join (path, word)
    return path
 
  def copyfile (self, source, outputfile):
    "" "Copy all data between two file objects.
 
    The SOURCE argument is a file object open for reading
    (or anything with a read () method) and the DESTINATION
    argument is a file object open for writing (or
    anything with a write () method).
 
    The only reason for overriding this would be to change
    the block size or perhaps to replace newlines by CRLF
    -note however that this the default server uses this
    to copy binary data as well.
 
    "" "
    shutil.copyfileobj (source, outputfile)
 
  def guess_type (self, path):
    "" "Guess the type of a file.
 
    Argument is a PATH (a filename).
 
    Return value is a string of the form type / subtype,
    usable for a MIME Content-type header.
 
    The default implementation looks the file's extension
    up in the table self.extensions_map, using application / octet-stream
    as a default; however it would be permissible (if
    slow) to look inside the data to make a better guess.
 
    "" "
 
    base, ext = posixpath.splitext (path)
    if ext in self.extensions_map:
      return self.extensions_map [ext]
    ext = ext.lower ()
    if ext in self.extensions_map:
      return self.extensions_map [ext]
    else:
      return self.extensions_map ["]
 
  if not mimetypes.inited:
    mimetypes.init () # try to read system mime.types
  extensions_map = mimetypes.types_map.copy ()
  extensions_map.update ({
    '': 'application / octet-stream', # Default
    '.py': 'text / plain',
    '.c': 'text / plain',
    '.h': 'text / plain',
    })
 
class ThreadingServer (ThreadingMixIn, BaseHTTPServer.HTTPServer):
  pass
   
def test (HandlerClass = SimpleHTTPRequestHandler,
    ServerClass = BaseHTTPServer.HTTPServer):
  BaseHTTPServer.test (HandlerClass, ServerClass)
 
if __name__ == '__main__':
  # test ()
   
  #Single thread
  # srvr = BaseHTTPServer.HTTPServer (serveraddr, SimpleHTTPRequestHandler)
   
  #Multithreading
  srvr = ThreadingServer (serveraddr, SimpleHTTPRequestHandler)
   
  srvr.serve_forever ()


REF:

1. httpserver
=======================================
This httpserver is a enhanced version of SimpleHTTPServer.
It was write in python, I use some code from bottle [https://github.com/defnull/bottle]
It support resuming download, you can set the document root, it has more
friendly error hit, and it can handle mimetype gracefully

https://github.com/lerry/httpserver/blob/master/httpserver.py

2. SimpleHTTPServer based on java netty,

Since Windows does not support certain netty low-level APIs, this code can only be run under Linux:

https://github.com/dvliman/SimpleHTTPServer