Python SimpleHTTPServer接收文件

Question

我正在使用SimpleHTTPServer的do_POST方法来接收文件。该脚本工作正常，如果我使用curl上传png文件，但每当我使用python请求库上传文件，文件上传但变得腐败。这里是SimpleHTTPServer代码

#!/usr/bin/env python 
# Simple HTTP Server With Upload. 

import os 
import posixpath 
import BaseHTTPServer 
import urllib 
import cgi 
import shutil 
import mimetypes 
import re 
try: 
    from cStringIO import StringIO 
except ImportError: 
    from StringIO import StringIO 

class SimpleHTTPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):  
    # Simple HTTP request handler with POST commands. 

    def do_POST(self): 
     """Serve a POST request.""" 
     r, info = self.deal_post_data() 
     print r, info, "by: ", self.client_address 
     f = StringIO() 

     if r: 
      f.write("<strong>Success:</strong>") 
     else: 
      f.write("<strong>Failed:</strong>") 

     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): 
     print self.headers 
     boundary = self.headers.plisttext.split("=")[1] 
     print 'Boundary %s' %boundary 
     remainbytes = int(self.headers['content-length']) 
     print "Remain Bytes %s" %remainbytes 
     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) 
     fn = os.path.join(path, fn[0]) 
     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 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 test(HandlerClass = SimpleHTTPRequestHandler, 
     ServerClass = BaseHTTPServer.HTTPServer): 
    BaseHTTPServer.test(HandlerClass, ServerClass) 

if __name__ == '__main__': 
    test() 

客户端代码上传的文件在这里

#!/usr/bin/python 

import requests 

files = {'file': open('test.png', 'rb')} 
r = requests.post('http://192.168.5.134:8000', files=files) 
print r.request.headers 

文件上传成功，但被损坏。

python request header

SimpleHTTPServer response

使用curl [卷曲-F 'file=@test.png' 192.168.5.134:8000/ -v]，文件上传和成功打开。

在python请求代码中是否有任何问题？

Answer 1

curl和request有一个稍微不同的标题，curl有一个额外的空行，而requests没有。

与以下块

if line.strip(): 
    preline = line 
else: 
    preline = self.rfile.readline()