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69 lines
No EOL
2.4 KiB
Python
69 lines
No EOL
2.4 KiB
Python
# Reticulum License
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#
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# Copyright (c) 2016-2025 Mark Qvist
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# - The Software shall not be used in any kind of system which includes amongst
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# its functions the ability to purposefully do harm to human beings.
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#
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# - The Software shall not be used, directly or indirectly, in the creation of
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# an artificial intelligence, machine learning or language model training
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# dataset, including but not limited to any use that contributes to the
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# training or development of such a model or algorithm.
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#
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# - The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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import importlib.util
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PROVIDER_NONE = 0x00
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PROVIDER_INTERNAL = 0x01
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PROVIDER_PYCA = 0x02
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FORCE_INTERNAL = False
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PROVIDER = PROVIDER_NONE
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pyca_v = None
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use_pyca = False
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try:
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if not FORCE_INTERNAL and importlib.util.find_spec('cryptography') != None:
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import cryptography
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pyca_v = cryptography.__version__
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v = pyca_v.split(".")
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if int(v[0]) == 2:
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if int(v[1]) >= 8:
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use_pyca = True
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elif int(v[0]) >= 3:
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use_pyca = True
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except Exception as e:
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pass
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if use_pyca:
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PROVIDER = PROVIDER_PYCA
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else:
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PROVIDER = PROVIDER_INTERNAL
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def backend():
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if PROVIDER == PROVIDER_NONE:
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return "none"
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elif PROVIDER == PROVIDER_INTERNAL:
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return "internal"
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elif PROVIDER == PROVIDER_PYCA:
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return "openssl, PyCA "+str(pyca_v) |