U .Ѫ_(@s|dZddlmZmZddlmZmZmZmZddl m Z ddZ ddZ d d Z d d Zd dZddZGdddeZdS)zb Routines and classes for supporting and expressing IP address ranges using a glob style syntax. )AddrFormatErrorAddrConversionError)IPRange IPAddress IPNetworkiprange_to_cidrs)_is_strc CsNt|s dSd}d}|d}t|dkr.dS|D]}d|kr|rJdSd}|rXdSzdd|dD\}}Wntk rYdSX||krdSd|krd ksndSd |krd ksndSq2|d krd}q2|dkrdS|dkrdSz*dt|kr d ks*nWdSWq2tk rFYdSXq2dS) z :param ipglob: An IP address range in a glob-style format. :return: ``True`` if IP range glob is valid, ``False`` otherwise. F.-TcSsg|] }t|qSint).0ir r 6/Users/cjl/code/aws-vpc-ipam/lambda/netaddr/ip/glob.py .szvalid_glob..r*)rsplitlen ValueErrorr)ipglob seen_hyphen seen_asteriskZoctetsoctetZoctet1Zoctet2r r r valid_globsH        rcCst|std|fg}g}|dD]f}d|kr\|d}||d||dq(|dkrz|d|dq(||||q(td|td|fS) z A function that accepts a glob-style IP range and returns the component lower and upper bound IP address. :param ipglob: an IP address range in a glob-style format. :return: a tuple contain lower and upper bound IP objects. #not a recognised IP glob range: %r!r r rrr0255)rrrappendrjoinrZ start_tokensZ end_tokensrtokensr r rglob_to_iptupleFs      r&cCst|std|fg}g}|dD]f}d|kr\|d}||d||dq(|dkrz|d|dq(||||q(td|d|S) z A function that accepts a glob-style IP range and returns the equivalent IP range. :param ipglob: an IP address range in a glob-style format. :return: an IPRange object. rr r rrrr r!)rrrr"rr#r$r r rglob_to_iprangeds      r'cCst|}t|}|jdkr,|jdkr,tddd}g}z(|||}t|sTtd||Wn@tk rt||D] }||d|d}||qzYnX|S)a A function that accepts an arbitrary start and end IP address or subnet and returns one or more glob-style IP ranges. :param start: the start IP address or subnet. :param end: the end IP address or subnet. :return: a list containing one or more IP globs. r z!IP glob ranges only support IPv4!cSsddt|dD}ddt|dD}g}d}d}tdD]}||||krl|t||qD||dkr||dkr|d d }qD|s|s|d ||||fd }qtd qDtd qDd|S)NcSsg|] }t|qSr r r_r r rrsz>iprange_to_globs.._iprange_to_glob..r cSsg|] }t|qSr r r(r r rrsFr rrrTz%s-%sz,only 1 hyphenated octet per IP glob allowed!z3asterisks are not allowed before hyphenated octets!)strrranger"rr#)ZlbZubt1t2r%rrrr r r_iprange_to_globs,  z*iprange_to_globs.._iprange_to_globzinvalid ip glob createdr)rversionrrr"r)startendr.globsrcidrr r riprange_to_globss ! r5cCs tt|S)z A function that accepts a glob-style IP range and returns a list of one or more IP CIDRs that exactly matches it. :param ipglob: an IP address range in a glob-style format. :return: a list of one or more IP objects. )rr&)rr r r glob_to_cidrss r6cCs6t|}t|d|d}t|dkr.td|dS)z A function that accepts an IP subnet in a glob-style format and returns a list of CIDR subnets that exactly matches the specified glob. :param cidr: an IP object CIDR subnet. :return: a list of one or more IP addresses and subnets. rr/rzbad CIDR to IP glob conversion!)rr5rr)r4ipr3r r r cidr_to_globs  r8csjeZdZdZdZfddZfddZfddZd d Zd d Z e ee d dZ ddZ ddZ ZS)IPGloba Represents an IP address range using a glob-style syntax ``x.x.x-y.*`` Individual octets can be represented using the following shortcuts : 1. ``*`` - the asterisk octet (represents values ``0`` through ``255``) 2. ``x-y`` - the hyphenated octet (represents values ``x`` through ``y``) A few basic rules also apply : 1. ``x`` must always be less than ``y``, therefore : - ``x`` can only be ``0`` through ``254`` - ``y`` can only be ``1`` through ``255`` 2. only one hyphenated octet per IP glob is allowed 3. only asterisks are permitted after a hyphenated octet Examples: +------------------+------------------------------+ | IP glob | Description | +==================+==============================+ | ``192.0.2.1`` | a single address | +------------------+------------------------------+ | ``192.0.2.0-31`` | 32 addresses | +------------------+------------------------------+ | ``192.0.2.*`` | 256 addresses | +------------------+------------------------------+ | ``192.0.2-3.*`` | 512 addresses | +------------------+------------------------------+ | ``192.0-1.*.*`` | 131,072 addresses | +------------------+------------------------------+ | ``*.*.*.*`` | the whole IPv4 address space | +------------------+------------------------------+ .. note :: IP glob ranges are not directly equivalent to CIDR blocks. They can represent address ranges that do not fall on strict bit mask boundaries. They are suitable for use in configuration files, being more obvious and readable than their CIDR counterparts, especially for admins and end users with little or no networking knowledge or experience. All CIDR addresses can always be represented as IP globs but the reverse is not always true. _globcs6t|\}}tt|||t|j|jd|_dSNr)r&superr9__init__r5_start_endglob)selfrr1r2 __class__r rr>s zIPGlob.__init__cstt|S)z-:return: Pickled state of an `IPGlob` object.)r=r9 __getstate__rBrCr rrEszIPGlob.__getstate__cs(tt||t|j|jd|_dS)z>:param state: data used to unpickle a pickled `IPGlob` object.rN)r=r9 __setstate__r5r?r@rA)rBstaterCr rrG#szIPGlob.__setstate__cCs|jS)Nr:rFr r r _get_glob(szIPGlob._get_globcCs(t|\|_|_t|j|jd|_dSr<)r&r?r@r5r;)rBrr r r _set_glob+szIPGlob._set_globNz-an arbitrary IP address range in glob format.cCs d|jS)z3:return: IP glob in common representational format.z%s)rArFr r r__str__2szIPGlob.__str__cCsd|jj|jfS)z8:return: Python statement to create an equivalent objectz%s('%s'))rD__name__rArFr r r__repr__6szIPGlob.__repr__)rL __module__ __qualname____doc__ __slots__r>rErGrIrJpropertyrArKrM __classcell__r r rCrr9s-   r9N)rP netaddr.corerr netaddr.iprrrrnetaddr.compatrrr&r'r5r6r8r9r r r rs 6J