Python HTTP文件上传

# -*- coding:UTF-8 -*-
'''
Created on 2010-4-26

@author: shiyong
'''
import urllib
import sys
import urllib2
import mimetools, mimetypes
import os, stat

from IdongNet import IdongNet
from UserManager import UserManager
import cookielib

class Callable:
    def __init__(self, anycallable):
        self.__call__ = anycallable

# Controls how sequences are uncoded. If true, elements may be given multiple values by
#  assigning a sequence.
doseq = 1

class MultipartPostHandler(urllib2.BaseHandler):
    handler_order = urllib2.HTTPHandler.handler_order - 10 # needs to run first

    def http_request(self, request):
        data = request.get_data()
        if data is not None and type(data) != str:
            v_files = []
            v_vars = []
            try:
                for(key, value) in data.items():
                    if type(value) == file:
                        v_files.append((key, value))
                    else:
                        v_vars.append((key, value))
            except TypeError:
                systype, value, traceback = sys.exc_info()
                raise TypeError, "not a valid non-string sequence or mapping object", traceback

            if len(v_files) == 0:
                data = urllib.urlencode(v_vars, doseq)
            else:
                boundary, data = self.multipart_encode(v_vars, v_files)
                contenttype = 'multipart/form-data; boundary=%s' % boundary
                if(request.has_header('Content-Type')
                   and request.get_header('Content-Type').find('multipart/form-data') != 0):
                    print "Replacing %s with %s" % (request.get_header('content-type'), 'multipart/form-data')
                request.add_unredirected_header('Content-Type', contenttype)

            request.add_data(data)
        return request

    def multipart_encode(vars, files, boundary = None, buffer = None): #@NoSelf
        if boundary is None:
            boundary = mimetools.choose_boundary()
        if buffer is None:
            buffer = ''
        for(key, value) in vars:
            buffer += '--%s\r\n' % boundary
            buffer += 'Content-Disposition: form-data; name="%s"' % key
            buffer += '\r\n\r\n' + value + '\r\n'
        for(key, fd) in files:
            file_size = os.fstat(fd.fileno())[stat.ST_SIZE]
            filename = os.path.basename(fd.name)
            contenttype = mimetypes.guess_type(filename)[0] or 'application/octet-stream'
            buffer += '--%s\r\n' % boundary
            buffer += 'Content-Disposition: form-data; name="%s"; filename="%s"\r\n' % (key, filename)
            buffer += 'Content-Type: %s\r\n' % contenttype
            # buffer += 'Content-Length: %s\r\n' % file_size
            fd.seek(0)
            buffer += '\r\n' + fd.read() + '\r\n'
        buffer += '--%s--\r\n\r\n' % boundary
        return boundary, buffer
    multipart_encode = Callable(multipart_encode)

    https_request = http_request
    
class FileUploadMgr(object):
    '''
            管理系统文件上传
    '''


    def __init__(self):
        '''
        Constructor
        '''
    
    def upload_file(self,post_params):
        '''
                    功能描述：上传文件
        
        '''
        cookies = cookielib.CookieJar()
        opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cookies),MultipartPostHandler)
        response = opener.open("http://us.i-dong.com/outer/server.action", post_params)
        return response.read()
        
        
    def upload_user_portrait(self,optType,width,height,portraitFile):
        '''
                    功能描述：用户注册时或者更改个人信息的时候，上传自定义头像
                    参数说明：
           optType  string 标识图片作用参数 0:个人头像
           width    string 图片压缩宽带,如：'800'
           height   string 图片压缩高度,如：'600'
           portraitFile    File（Python的文件对象）    上传的文件，上传的文件类型为：jpeg、gif、bmp、png、pjpeg、x-png
           
                    返回值：xml文档字符串
        '''
        post_params = {}
        post_params['userID'] = IdongNet.IdongID
        post_params['version'] = IdongNet.version
        post_params['webKey'] = IdongNet.webKey
        post_params['optType'] = optType
        post_params['width'] = width
        post_params['height'] = height
        post_params['portraitFile'] = portraitFile
        post_params['key'] = 'uploadUserPortrait'
        return self.upload_file(post_params)
    
if __name__ == '__main__':
    
    print UserManager.login(1, '205599','123456')
    fileuploadMgr = FileUploadMgr()
    logofile = open('C:\\1.jpg','rb')
    print fileuploadMgr.upload_user_portrait('0', '800' , '600', logofile)
    
        

评论

2 楼 bluky999 2011-12-14  

文件上传的时候，必须按照标准HTTP协议来自己编码的？   没有现成的模块直接用么？

1 楼 xzs315 2011-08-30  

IdongNet   是个什么东西啊？