multipartpost.py 文件源码

def multipart_encode(vars, files, boundary = None, buffer = None):
        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 = fd.name.split('/')[-1]
            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