commit 5a1a5041cfced98f84c39f2051e5a488472b68b2 · dwn.poxiao-labs.work/atpasser

+116

src/atpasser/nsid/__init__.py

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       import dns.resolver, requests

     

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       from atpasser import did

     

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       class NSID:

     

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           """

     

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           A class representing a NSID.

     

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           Attributes:

     

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               nsid (str): The NSID URI.

     

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           """

     

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           def __init__(self, nsid: str) -> None:

     

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               """

     

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               Initalizes an NSID object.

     

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               Parameters:

     

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                   nsid (str): The NSID.

     

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               """

     

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               if "#" in nsid:

     

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                   nsidWithoutFragment, fragment = nsid.split("#")

     

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               else:

     

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                   nsidWithoutFragment, fragment = nsid, None

     

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               if not set([x for x in nsidWithoutFragment]).issubset(

     

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                   set([chr(i) for i in range(0x80)])

     

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               ):

     

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                   raise ValueError("nsid contains non-ascii chars")

     

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               if len(nsidWithoutFragment) > 317:

     

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                   raise ValueError("length longer than 317 chars")

     

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               segments = nsidWithoutFragment.split(".")

     

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               if nsidWithoutFragment.startswith(".") or nsidWithoutFragment.endswith("."):

     

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                   raise ValueError("invalid, but is that undocumented lol")

     

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               if len(segments) < 3:

     

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                   raise ValueError("less than 3 segments")

     

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               domainAuthority = [segment.lower() for segment in segments[0:-1]]

     

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               if len(".".join(domainAuthority)) > 253:

     

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                   raise ValueError("domain authority more than 253 chars")

     

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               for segment in domainAuthority:

     

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                   print(segment)

     

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                   if len(segment) > 63 or segment == "":

     

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                       raise ValueError("segment not in 1~63 chars")

     

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                   if not set(segment).issubset(set("abcdefghijklmnopqrstuvwxyz0123456789-")):

     

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                       raise ValueError("domain authority contains invalid chars")

     

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                   if segment.startswith("-") or segment.endswith("-"):

     

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                       raise ValueError("segment starts or ends with hyphen")

     

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               if segments[0][0] in "0123456789":

     

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                   raise ValueError("tld starts with a digit")

     

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               self.domainAuthority = domainAuthority

     

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               self.domainAuthorityAsText = ".".join(domainAuthority)

     

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               name = segments[-1]

     

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               if name == "" or len(name) > 63:

     

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                   raise ValueError("name null or longer than 63 chars")

     

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               if not set(name).issubset(

     

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                   set("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")

     

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               ):

     

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                   raise ValueError("name contains invalid chars")

     

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               if name[0] in "0123456789":

     

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                   raise ValueError("first char of name is a digit")

     

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               self.name = name

     

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               if fragment != None:

     

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                   if fragment == "" or len(fragment) > 63:

     

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                       raise ValueError("fragment null or longer than 63 chars")

     

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                   if not set(fragment).issubset(

     

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                       set("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")

     

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                   ):

     

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                       raise ValueError("fragment contains invalid chars")

     

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                   if fragment[0] in "0123456789":

     

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                       raise ValueError("first char of fragment is a digit")

     

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                   self.fragment = fragment

     

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               else:

     

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                   self.fragment = None

     

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               self.nsid = ".".join(domainAuthority) + f".{name}" + f"#{fragment}"

     

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           def __str__(self) -> str:

     

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               """

     

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               Convert the NSID to a string by given the URI.

     

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               """

     

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               return self.nsid

     

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           def __eq__(self, value: object, /) -> bool:

     

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               """

     

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               Check if the 2 values are exactly the same.

     

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               """

     

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               if isinstance(value, NSID):

     

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                   return str(self) == str(value)

     

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               else:

     

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                   raise TypeError