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https://github.com/JamesonHuang/OpenWrt_Luci_Lua.git
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71 lines
2.1 KiB
Python
71 lines
2.1 KiB
Python
#!/usr/bin/env python
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# coding=utf-8
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import urllib
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import urllib2
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import json
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class CacheUtils:
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@staticmethod
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def cbk(a, b, c):
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'''''回调函数
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@a: 已经下载的数据块
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@b: 数据块的大小
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@c: 远程文件的大小
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'''
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per = 100.0 * a * b / c
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if per > 100:
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per = 100
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print '%.2f%%' % per
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def download(self, url, local):
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urllib.urlretrieve(url, local, self.cbk)
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def cache(self, url, range):
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fileName = url.split('/')[-1]
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req = urllib2.Request(url)
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req.add_header('Range', 'bytes=' + range)
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response = urllib2.urlopen(req)
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buffer = response.read()
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with open("./cache/" + fileName + range, "a+") as fp:
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fp.write(buffer)
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def saveReq(self, url, range):
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# Reading data back
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with open('data.json', 'r') as fp:
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data = json.load(fp)
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data[url] = range
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# Writing JSON data
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with open('data.json', 'w') as fp:
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json.dump(data, fp)
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def checkReq(self, url):
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# Reading data back
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with open('data.json', 'r') as fp:
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data = json.load(fp)
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if data.get(url):
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fileName = url.split('/')[-1]
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with open('GotIt.txt', 'a+') as fp:
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if data[url] == "None":
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fp.write("./download/" + fileName + "\n")
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else:
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fp.write("./cache/" + fileName + " " + data[url] + "\n")
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return True
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else:
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return False
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if __name__ == '__main__':
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cacheUtils = CacheUtils()
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#url = "http://www.sina.com.cn"
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#fileName = url.split('/')[-1]
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#cacheUtils.download(url, "./cache/" + fileName)
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#cacheUtils.cache("http://www.baidu.com")
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#cacheUtils.cache("https://ss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superplus/img/logo_white_ee663702.png", "0-7000")
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#cacheUtils.cache("https://ss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superplus/img/logo_white_ee663702.png", "7001-14175")
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#cacheUtils.saveReq("http://www.sina.com.cn")
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#cacheUtils.loadReq()
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