python脚本

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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

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

from distutils.core import setup
import py2exe

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

Windows编译版本下载:

链接: https://pan.baidu.com/s/1skADZeH 密码: rdgb


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