使用python2实现http multipart/form-data数据传输

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我是靠谱客的博主机智纸鹤，这篇文章主要介绍使用python2实现http multipart/form-data数据传输，现在分享给大家，希望可以做个参考。

Python3貌似有比较方便的方式，Python2得自己写点代码。

代码基本上参考了一位仁兄发布在github上的代码，但是找不到他的链接了，对不住。不过他的代码貌似跑不过，我这里做了修改后，发布在这里，希望对后来人有帮助。

其实最重要的还是要了解http有关这部分的协议。不懂的可以找相关资料了解一下，这里推荐一个：

《HTTP协议之multipart/form-data请求分析》

复制代码

import httplib
import mimetypes
def post_multipart(host, selector, fields, files):
content_type, body = encode_multipart_formdata(fields, files)
body_buf = bytearray(body)
h = httplib.HTTP(host)
h.putrequest('POST', selector)
h.putheader('content-type', content_type)
h.putheader('content-length', str(len(body_buf)))
h.endheaders()
h.send(body_buf)
errcode, errmsg, headers = h.getreply()
print errcode, errmsg
return h.file.read()
def encode_multipart_formdata(fields, files):
LIMIT = '----------lImIt_of_THE_fIle_eW_$'
body = []
for (key, value) in fields:
body.extend(bytes('rn--' + LIMIT + 'rn'))
body.extend(bytes('Content-Disposition: form-data; name="%s"rn' % key))
body.extend(bytes('rn'))
body.extend(bytes(value))
for (key, filename, value) in files:
body.extend(bytes('rn--' + LIMIT + 'rn'))
body.extend(bytes('Content-Disposition: form-data; name="%s"; filename="%s"rn' % (key, filename)))
body.extend(bytes('Content-Type: %srn' % get_content_type(filename)))
body.extend(bytes('rn'))
body.extend(value)
body.extend('rn--' + LIMIT + '--rn')
content_type = 'multipart/form-data; boundary=%s' % LIMIT
return content_type, body
def get_content_type(filename):
return mimetypes.guess_type(filename)[0] or 'application/octet-stream'
if "__main__" == __name__:
data = [0x01, 0x02, 0x03, 0x04]
fields = [("type", "0")]
files = [("data", "data", data)]
response_str = post_multipart("127.0.0.1:8080", "/doSomething", fields, files)
print response_str

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import httplib
import mimetypes
def post_multipart(host, selector, fields, files):
content_type, body = encode_multipart_formdata(fields, files)
body_buf = bytearray(body)
h = httplib.HTTP(host)
h.putrequest('POST', selector)
h.putheader('content-type', content_type)
h.putheader('content-length', str(len(body_buf)))
h.endheaders()
h.send(body_buf)
errcode, errmsg, headers = h.getreply()
print errcode, errmsg
return h.file.read()
def encode_multipart_formdata(fields, files):
LIMIT = '----------lImIt_of_THE_fIle_eW_$'
body = []
for (key, value) in fields:
body.extend(bytes('rn--' + LIMIT + 'rn'))
body.extend(bytes('Content-Disposition: form-data; name="%s"rn' % key))
body.extend(bytes('rn'))
body.extend(bytes(value))
for (key, filename, value) in files:
body.extend(bytes('rn--' + LIMIT + 'rn'))
body.extend(bytes('Content-Disposition: form-data; name="%s"; filename="%s"rn' % (key, filename)))
body.extend(bytes('Content-Type: %srn' % get_content_type(filename)))
body.extend(bytes('rn'))
body.extend(value)
body.extend('rn--' + LIMIT + '--rn')
content_type = 'multipart/form-data; boundary=%s' % LIMIT
return content_type, body
def get_content_type(filename):
return mimetypes.guess_type(filename)[0] or 'application/octet-stream'
if "__main__" == __name__:
data = [0x01, 0x02, 0x03, 0x04]
fields = [("type", "0")]
files = [("data", "data", data)]
response_str = post_multipart("127.0.0.1:8080", "/doSomething", fields, files)
print response_str