EarthLiveSharp中cloudinary的CDN图片缓存自动清理python脚本

恰巧发现有个叫“EarthLiveSharp”，可用将日本向日葵8号卫星的地球实时图片设为屏保。向日葵8号卫星的地球实时图片官网为：http://himawari8.nict.go.jp/，EarthLiveSharp的项目地址是：https://github.com/bitdust/EarthLiveSharp。
为了减轻向日葵8号的服务器负担，同时也是提高地球实时图片的获取成功率，需要使用cloudinary来做CDN。注册配置都在软件里有说明。

目前EarthLiveSharp暂时没有清理cloudinary的CDN 图片缓存的功能，于是我用python写了一个，并尝试用gist管理，地址为：https://gist.github.com/creke/c5a8a18fa41b8f5c1a0719a7e0cf4de6

同时，为了大家方便，顺便编译成了Windows可执行文件，下载： https://pan.baidu.com/s/1c27fXEo 提取码：k33n
为了自己检索方便，顺便在这里附上python脚本源码，可以作为python如何使用RESTful接口的例子，相关工具类函数也便于参考。

EarthLiveCleanCloudinary.py

# -*- coding: utf-8 -*-

# Author: Creke

# HomePage: http://blog.creke.net

import sys

import urllib, urllib2

import base64

import json

URLLIB_DEBUG_LEVEL = 1

URLLIB_TIMEOUT = 5

def Dict2Uri(dic):

return urllib.urlencode(dic)

def GenUrllibReq(url, method, api_key, api_secret, post_data=None):

urlreq = None

if post_data is None:

urlreq = urllib2.Request(url)

else:

urlreq = urllib2.Request(url, post_data)

urlreq.get_method = lambda: method

auth_str = base64.b64encode('%s:%s' % (api_key, api_secret))

urlreq.add_header("Authorization", "Basic %s" % auth_str)

urlreq.add_header('Cache-Control', 'no-cache')

return urlreq

def GetApiDelUrl(cloud_name, img_type):

url = "https://api.cloudinary.com/v1_1/%s/resources/image/%s" % (cloud_name, img_type)

params = {"prefix": "http://himawari8-dl"}

url = url + "?" + Dict2Uri(params)

return url

def main(argv):

arg_idx = 1

api_key = argv[arg_idx]

arg_idx += 1

api_secret = argv[arg_idx]

arg_idx += 1

cloud_name = argv[arg_idx]

while True:

del_url = GetApiDelUrl(cloud_name, 'fetch')

urlreq = GenUrllibReq(del_url, 'DELETE', api_key, api_secret)

print "==========================="

print "Requesting %s" % (del_url)

opener = urllib2.build_opener(urllib2.HTTPSHandler(debuglevel=URLLIB_DEBUG_LEVEL))

urllib_open = opener.open(urlreq, timeout=URLLIB_TIMEOUT)

response = urllib_open.read()

print "==========================="

print "Response:"

print "%s" % (response)

print "==========================="

urllib_open.close()

print "Done Requesting"

res_json = json.loads(response)

deleted_cnt = len(res_json['deleted'])

print "Deleted %u himawari8 pics" % (deleted_cnt)

print "==========================="

if 'next_cursor' in res_json and deleted_cnt>0:

print "Due to Cloudinary limits, we're starting a new round"

else:

break

return 0

def PrintHelp(argv):

print "\\t USAGE: %s [api_key] [api_secret] [cloud_name]" % (argv[0])

if __name__ == '__main__':

if len(sys.argv) < 4:

PrintHelp(sys.argv)

exit(1)

print "RUNNING main"

main(sys.argv)

print "DONE main"

EarthLiveCleanCloudinary2exe.py

EarthLiveSharp中cloudinary的CDN图片缓存自动清理python脚本

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