EarthLiveSharp中cloudinary的CDN圖片緩存自動清理python腳本

更新時間：2017年04月04日 15:35:18 投稿：mdxy-dxy

這篇文章主要介紹了EarthLiveSharp暫時沒有清理cloudinary的CDN圖片緩存的功能，于是我用python寫了一個，并嘗試用gist管理,需要的朋友可以參考下

恰巧發(fā)現(xiàn)有個叫“EarthLiveSharp”，可用將日本向日葵8號衛(wèi)星的地球實時圖片設為屏保。向日葵8號衛(wèi)星的地球實時圖片官網(wǎng)為：http://himawari8.nict.go.jp/，EarthLiveSharp的項目地址是：https://github.com/bitdust/EarthLiveSharp。
為了減輕向日葵8號的服務器負擔，同時也是提高地球實時圖片的獲取成功率，需要使用cloudinary來做CDN。注冊配置都在軟件里有說明。

目前EarthLiveSharp暫時沒有清理cloudinary的CDN圖片緩存的功能，于是我用python寫了一個，并嘗試用gist管理，地址為：https://gist.github.com/creke/c5a8a18fa41b8f5c1a0719a7e0cf4de6

同時，為了大家方便，順便編譯成了Windows可執(zhí)行文件，下載： https://pan.baidu.com/s/1c27fXEo 提取碼：k33n
為了自己檢索方便，順便在這里附上python腳本源碼，可以作為python如何使用RESTful接口的例子，相關工具類函數(shù)也便于參考。

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

# -*- coding: utf-8 -*-
# Author: Creke
# HomePage: http://blog.creke.net

from distutils.core import setup
import py2exe

setup(console=['EarthLiveCleanCloudinary.py'])

Windows編譯版本下載：

鏈接: https://pan.baidu.com/s/1skADZeH 密碼: rdgb

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