Revision 26288e68 lib/utils.py
| b/lib/utils.py | ||
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"""Class implementing resolver and hostname functionality |
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""" |
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_VALID_NAME_RE = re.compile("^[a-z0-9._-]{1,255}$")
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def __init__(self, name=None): |
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"""Initialize the host name object. |
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return result |
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@classmethod |
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def NormalizeName(cls, hostname): |
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"""Validate and normalize the given hostname. |
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@attention: the validation is a bit more relaxed than the standards |
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require; most importantly, we allow underscores in names |
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@raise errors.OpPrereqError: when the name is not valid |
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""" |
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hostname = hostname.lower() |
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if (not cls._VALID_NAME_RE.match(hostname) or |
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# double-dots, meaning empty label |
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".." in hostname or |
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# empty initial label |
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hostname.startswith(".")):
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raise errors.OpPrereqError("Invalid hostname '%s'" % hostname,
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errors.ECODE_INVAL) |
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if hostname.endswith("."):
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hostname = hostname.rstrip(".")
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return hostname |
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def GetHostInfo(name=None): |
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"""Lookup host name and raise an OpPrereqError for failures""" |
Also available in: Unified diff