checkcode_via_aliyun.py

# coding=utf-8

from __future__ import unicode_literals, absolute_import, print_function

import logging
from io import BytesIO
import base64

import requests
from PIL import Image

logger = logging.getLogger(__name__)

APP_CODE = 'PUT-YOUR-CODE-HERE'

def convert_checkcode_via_aliyun(image):
    image_b64 = b64_encode_image(image)
    response = requests.post(
        'http://ali-checkcode.showapi.com/checkcode',
        data={
            'convert_to_jpg': '1',
            'img_base64': image_b64,
            'typeId': '3060',
        }, headers={
            'Authorization': 'APPCODE %s' % APP_CODE,
        })
    assert response.status_code == 200
    if response.json().get('showapi_res_code') != 0:
        logger.error(response.json())
        raise RuntimeError('error')
    return response.json()['showapi_res_body']['Result']

def b64_encode_image(image):
    b = BytesIO()
    image.save(b, 'jpeg')
    return base64.encodestring(b.getvalue()).replace('\n', '')

test_checkcode_via_aliyun.py

# coding=utf-8

from unittest import TestCase
import base64

from . import checkcode_via_aliyun


class DevUtilTest(TestCase):

    def test_convert_checkcode(self):
        with open('a.png.b64', 'r') as f:
            b64 = f.read()
        checkcode = checkcode_via_aliyun.convert_checkcode_via_aliyun(b64)

        self.assertEqual('832', checkcode)

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