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300行python代码的轻量级HTTPServer实现文件上传下载推荐

2016-06-13 18:58 911 查看
最近，利用一下空余的时间对以前的Python知识进行了巩固和复习，便闲来无事写了一个轻量级的HTTPServer来实现文件上传下载，不废话，直接上代码：
#!/usr/bin/env python
# -*- coding: utf-8 -*-

__version__ = "0.1"
__all__ = ["SimpleHTTPRequestHandler"]
__author__ = "kumikoda"
__home_page__ = ""

import os,platform
import sys
import tornado.ioloop
import tornado.web
import shutil
import posixpath
import BaseHTTPServer
from SocketServer import ThreadingMixIn
import threading
import urllib, urllib2
import cgi
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.AP_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.

"""
# 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].
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, "文件名请不要用中文，或者使用IE上传中文名的文件。")
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()

#单线程
# srvr = BaseHTTPServer.HTTPServer(serveraddr, SimpleHTTPRequestHandler)

#多线程
srvr = ThreadingServer(serveraddr, SimpleHTTPRequestHandler)

srvr.serve_forever()
最后的实现如下图：
如有不好的地方，勿喷。
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300行python代码的轻量级HTTPServer实现文件上传下载 推荐

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