40 lines
712 B
Python
Executable File
40 lines
712 B
Python
Executable File
#!/usr/bin/python2 -u
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# coding=utf8
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"""
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Fetches papers.
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"""
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from __future__ import print_function
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import sys
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import requesocks as requests
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import params
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def warning(*objs):
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"""
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Write to stderr
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"""
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print("WARNING: ", *objs, file=sys.stderr)
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def download_url(url):
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for proxy in params.proxies:
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r_proxy = {
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"http": proxy,
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"https": proxy,
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}
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try:
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r = requests.get(url, proxies=r_proxy)
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if r.status_code != 200 or 'pdf' not in r.headers['content-type']:
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continue
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return r.content
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except:
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warning("Proxy "+proxy+" not available.")
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continue
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return False
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