Coverage for comm/platform.py: 92%

1# The MIT License (MIT) 

2# 

3# Copyright (c) 2021 RSK Labs Ltd 

4# 

5# Permission is hereby granted, free of charge, to any person obtaining a copy of 

6# this software and associated documentation files (the "Software"), to deal in 

7# the Software without restriction, including without limitation the rights to 

8# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 

9# of the Software, and to permit persons to whom the Software is furnished to do 

10# so, subject to the following conditions: 

11# 

12# The above copyright notice and this permission notice shall be included in all 

13# copies or substantial portions of the Software. 

14# 

15# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 

16# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 

17# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 

18# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 

19# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 

20# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 

21# SOFTWARE. 

22 

23class Platform: 

24 LEDGER = "Ledger" 

25 SGX = "SGX" 

26 X86 = "X86" 

27 VALID_PLATFORMS = [LEDGER, SGX, X86] 

28 

29 MESSAGES = { 

30 LEDGER: { 

31 "restart": "disconnect and re-connect the ledger nano", 

32 }, 

33 SGX: { 

34 "restart": "restart the SGX powHSM", 

35 }, 

36 X86: { 

37 "restart": "restart the TCPSigner", 

38 } 

39 } 

40 

41 _platform = None 

42 _options = None 

43 

44 @classmethod 

45 def set(cls, plf, options={}): 

46 if plf not in cls.VALID_PLATFORMS: 

47 raise RuntimeError("Invalid platform given") 

48 cls._platform = plf 

49 cls._options = options 

50 

51 @classmethod 

52 def is_ledger(cls): 

53 return cls._platform == Platform.LEDGER 

54 

55 @classmethod 

56 def is_sgx(cls): 

57 return cls._platform == Platform.SGX 

58 

59 @classmethod 

60 def options(cls, key): 

61 return cls._options[key] 

62 

63 @classmethod 

64 def message(cls, key): 

65 return cls.MESSAGES[cls._platform][key]