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Allow downloading https resources without verifying the server certificate

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This commit is contained in:
Kovid Goyal 2015-01-12 10:55:00 +05:30
parent 0149c98092
commit 0050a3aba7
1 changed files with 10 additions and 4 deletions
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14
src/calibre/utils/https.py
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@ -35,7 +35,11 @@ def __init__(self, url, code):
class HTTPSConnection(httplib.HTTPSConnection):
def __init__(self, ssl_version, *args, **kwargs):
kwargs['context'] = ssl.create_default_context(cafile=kwargs.pop('cert_file'))
cafile = kwargs.pop('cert_file', None)
if cafile is None:
kwargs['context'] = ssl._create_unverified_context()
else:
kwargs['context'] = ssl.create_default_context(cafile=cafile)
httplib.HTTPSConnection.__init__(self, *args, **kwargs)
else:
# Check certificate hostname {{{
@ -159,13 +163,16 @@ def get_https_resource_securely(
certificate). Ensures that redirects, if any, are also downloaded
securely. Needs a CA certificates bundle (in PEM format) to verify the
server's certificates.
You can pass cacerts=None to download using SSL but without verifying the server certificate.
'''
if ssl_version is None:
try:
ssl_version = ssl.PROTOCOL_TLSv1_2
except AttributeError:
ssl_version = ssl.PROTOCOL_TLSv1 # old python
cacerts = P(cacerts, allow_user_override=False)
if cacerts is not None:
cacerts = P(cacerts, allow_user_override=False)
p = urlparse(url)
if p.scheme != 'https':
raise ValueError('URL %s scheme must be https, not %r' % (url, p.scheme))
@ -209,6 +216,5 @@ def get_https_resource_securely(
return response.read()
if __name__ == '__main__':
# print (len(get_url_secure('https://status.calibre-ebook.com/dist/win32')))
print (get_https_resource_securely('https://status.calibre-ebook.com/latest'))
print (get_https_resource_securely('https://code.calibre-ebook.com/latest'))