Python SimpleHTTPServer接收文件

Question

我正在使用SimpleHTTPServer的do_POST方法來接收文件。該腳本工作正常，如果我使用curl上傳png文件，但每當我使用python請求庫上傳文件，文件上傳但變得腐敗。這裏是SimpleHTTPServer代碼

#!/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() 

客戶端代碼上傳的文件在這裏

#!/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 

文件上傳成功，但被損壞。

python request header

SimpleHTTPServer response

使用curl [捲曲-F 'file=@test.png' 192.168.5.134:8000/ -v]，文件上傳和成功打開。

在python請求代碼中是否有任何問題？

Answer 1

curl和request有一個稍微不同的標題，curl有一個額外的空行，而requests沒有。

與以下塊

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