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[enh] use HMAC for image proxy url verification
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@ -22,10 +22,11 @@ if __name__ == '__main__':
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from os.path import realpath, dirname
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path.append(realpath(dirname(realpath(__file__)) + '/../'))
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import json
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import cStringIO
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import os
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import hashlib
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import hmac
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import json
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import os
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import requests
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from searx import logger
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@ -250,8 +251,7 @@ def image_proxify(url):
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if not request.preferences.get_value('image_proxy'):
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return url
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hash_string = url + settings['server']['secret_key']
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h = hashlib.sha256(hash_string.encode('utf-8')).hexdigest()
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h = hmac.new(settings['server']['secret_key'], url, hashlib.sha256).hexdigest()
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return '{0}?{1}'.format(url_for('image_proxy'),
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urlencode(dict(url=url.encode('utf-8'), h=h)))
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@ -599,7 +599,7 @@ def image_proxy():
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if not url:
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return '', 400
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h = hashlib.sha256(url + settings['server']['secret_key'].encode('utf-8')).hexdigest()
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h = hmac.new(settings['server']['secret_key'], url, hashlib.sha256).hexdigest()
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if h != request.args.get('h'):
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return '', 400
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