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60 lines
2.3 KiB
Python
60 lines
2.3 KiB
Python
# Regular expressions of email address, IP address, network.
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import re
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# Email address.
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#
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# - `+`, `=` are used in SRS rewritten addresses.
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# - `/` is sub-folder. e.g. 'john+lists/abc/def@domain.com' will create
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# directory `lists` and its sub-folders `lists/abc/`, `lists/abc/def`.
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email = r"""[\w\-\#][\w\-\.\+\=\/\&\#]*@[\w\-][\w\-\.]*\.[a-zA-Z0-9\-]{2,25}"""
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cmp_email = re.compile(r"^" + email + r"$", re.IGNORECASE | re.DOTALL | re.ASCII)
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# Email address allowed by locally created mail user.
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#
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# `auth_email` allows less characters than `email`.
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# Disallowed chars: `+`, `=`, `/`.
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auth_email = r"""[\w\-\#][\w\-\=\.\&\#]*@[\w\-][\w\-\.]*\.[a-zA-Z0-9\-]{2,25}"""
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cmp_auth_email = re.compile(r"^" + auth_email + r"$", re.IGNORECASE | re.DOTALL | re.ASCII)
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# Wildcard sender address: 'user@*'
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wildcard_addr = r"""[\w\-][\w\-\.\+\=]*@\*"""
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cmp_wildcard_addr = re.compile(r"^" + wildcard_addr + r"$", re.IGNORECASE | re.DOTALL | re.ASCII)
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#
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# Domain name
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#
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# Single domain name.
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domain = r"""[\w\-][\w\-\.]*\.[a-z0-9\-]{2,25}"""
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cmp_domain = re.compile(r"^" + domain + r"$", re.IGNORECASE | re.DOTALL | re.ASCII)
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# Top level domain. e.g. .com, .biz, .org.
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top_level_domain = r"""[a-z0-9\-]{2,25}"""
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cmp_top_level_domain = re.compile(r"^" + top_level_domain + r"$", re.IGNORECASE | re.DOTALL | re.ASCII)
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# Valid first char of domain name, email address.
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valid_account_first_char = r"""^[0-9a-zA-Z]{1,1}$"""
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cmp_valid_account_first_char = re.compile(r"^" + valid_account_first_char + r"$", re.IGNORECASE)
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# WARNING: This is used for simple URL matching, not used to verify IP address.
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ip = r"[0-9a-zA-Z\.\:]+"
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# Wildcard IPv4: 192.168.0.*
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wildcard_ipv4 = r"(?:[\d\*]{1,3})\.(?:[\d\*]{1,3})\.(?:[\d\*]{1,3})\.(?:[\d\*]{1,3})$"
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cmp_wildcard_ipv4 = re.compile(wildcard_ipv4, re.IGNORECASE | re.DOTALL)
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# Mailing list id, a server-wide unique 36-char string.
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mailing_list_id = r"[a-zA-Z0-9\-]{36}"
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cmp_mailing_list_id = re.compile(r"^" + mailing_list_id + r"$")
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# Mailing list subscription confirm token. a 32-char string.
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mailing_list_confirm_token = r"[a-zA-Z0-9]{32}"
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cmp_mailing_list_confirm_token = re.compile(r"^" + mailing_list_confirm_token + r"$")
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#
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# Mailbox
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#
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# Set mailbox folder name. Could be either empty or up to 20 characters.
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mailbox_folder = r"""[a-zA-Z0-9]{0,20}"""
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cmp_mailbox_folder = re.compile(r"^" + mailbox_folder + r"$")
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