使用Python自带的库而不依赖第三方库，简单的文件服务器实现
基于BaseHTTPServer的文件服务器
能够进行上传下载等操作。
#!/usr/bin/env python
# coding=utf-8
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 getHomePath():
return os.getcwd()
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):
return time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(os.path.getmtime(filename)))
class SimpleHTTPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
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>')
f.write("<html>\n<title>Upload Result Page</title>\n")
f.write("<body>\n<h2>Upload Result Page</h2>\n")
f.write("<hr>\n")
f.write("<strong>%s</strong>" % ("Success:" if r else "Failed:"))
f.write(info)
f.write("<br><a href=\"%s\">back</a>\n</body>\n</html>" % self.headers['referer'])
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):
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:
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):
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')
f.write("<html>\n<title>Directory listing for %s</title>\n" % displaypath)
f.write("<body>\n<h2>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("<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 = getHomePath() + '/' + 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):
path = path.split('?', 1)[0]
path = path.split('#', 1)[0]
path = posixpath.normpath(urllib.unquote(path))
words = path.split('/')
words = filter(None, words)
path = getHomePath()
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):
shutil.copyfileobj(source, outputfile)
def guess_type(self, path):
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
})
class ThreadingServer(ThreadingMixIn, BaseHTTPServer.HTTPServer):
pass
if __name__ == '__main__':
srvr = ThreadingServer(('', 8080), SimpleHTTPRequestHandler)
threads = []
t = threading.Thread(target=srvr.serve_forever())
t.setDaemon(True)
t.start()
t.join()