mirror of
https://github.com/MISP/misp-galaxy.git
synced 2024-12-04 20:57:18 +00:00
543 lines
21 KiB
Python
543 lines
21 KiB
Python
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from redis.client import NEVER_DECODE
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from redis.exceptions import ModuleError
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from redis.utils import HIREDIS_AVAILABLE, deprecated_function
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BF_RESERVE = "BF.RESERVE"
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BF_ADD = "BF.ADD"
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BF_MADD = "BF.MADD"
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BF_INSERT = "BF.INSERT"
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BF_EXISTS = "BF.EXISTS"
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BF_MEXISTS = "BF.MEXISTS"
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BF_SCANDUMP = "BF.SCANDUMP"
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BF_LOADCHUNK = "BF.LOADCHUNK"
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BF_INFO = "BF.INFO"
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BF_CARD = "BF.CARD"
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CF_RESERVE = "CF.RESERVE"
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CF_ADD = "CF.ADD"
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CF_ADDNX = "CF.ADDNX"
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CF_INSERT = "CF.INSERT"
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CF_INSERTNX = "CF.INSERTNX"
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CF_EXISTS = "CF.EXISTS"
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CF_MEXISTS = "CF.MEXISTS"
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CF_DEL = "CF.DEL"
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CF_COUNT = "CF.COUNT"
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CF_SCANDUMP = "CF.SCANDUMP"
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CF_LOADCHUNK = "CF.LOADCHUNK"
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CF_INFO = "CF.INFO"
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CMS_INITBYDIM = "CMS.INITBYDIM"
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CMS_INITBYPROB = "CMS.INITBYPROB"
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CMS_INCRBY = "CMS.INCRBY"
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CMS_QUERY = "CMS.QUERY"
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CMS_MERGE = "CMS.MERGE"
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CMS_INFO = "CMS.INFO"
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TOPK_RESERVE = "TOPK.RESERVE"
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TOPK_ADD = "TOPK.ADD"
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TOPK_INCRBY = "TOPK.INCRBY"
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TOPK_QUERY = "TOPK.QUERY"
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TOPK_COUNT = "TOPK.COUNT"
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TOPK_LIST = "TOPK.LIST"
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TOPK_INFO = "TOPK.INFO"
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TDIGEST_CREATE = "TDIGEST.CREATE"
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TDIGEST_RESET = "TDIGEST.RESET"
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TDIGEST_ADD = "TDIGEST.ADD"
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TDIGEST_MERGE = "TDIGEST.MERGE"
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TDIGEST_CDF = "TDIGEST.CDF"
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TDIGEST_QUANTILE = "TDIGEST.QUANTILE"
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TDIGEST_MIN = "TDIGEST.MIN"
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TDIGEST_MAX = "TDIGEST.MAX"
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TDIGEST_INFO = "TDIGEST.INFO"
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TDIGEST_TRIMMED_MEAN = "TDIGEST.TRIMMED_MEAN"
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TDIGEST_RANK = "TDIGEST.RANK"
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TDIGEST_REVRANK = "TDIGEST.REVRANK"
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TDIGEST_BYRANK = "TDIGEST.BYRANK"
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TDIGEST_BYREVRANK = "TDIGEST.BYREVRANK"
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class BFCommands:
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"""Bloom Filter commands."""
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def create(self, key, errorRate, capacity, expansion=None, noScale=None):
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"""
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Create a new Bloom Filter `key` with desired probability of false positives
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`errorRate` expected entries to be inserted as `capacity`.
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Default expansion value is 2. By default, filter is auto-scaling.
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For more information see `BF.RESERVE <https://redis.io/commands/bf.reserve>`_.
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""" # noqa
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params = [key, errorRate, capacity]
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self.append_expansion(params, expansion)
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self.append_no_scale(params, noScale)
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return self.execute_command(BF_RESERVE, *params)
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reserve = create
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def add(self, key, item):
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"""
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Add to a Bloom Filter `key` an `item`.
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For more information see `BF.ADD <https://redis.io/commands/bf.add>`_.
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""" # noqa
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return self.execute_command(BF_ADD, key, item)
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def madd(self, key, *items):
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"""
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Add to a Bloom Filter `key` multiple `items`.
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For more information see `BF.MADD <https://redis.io/commands/bf.madd>`_.
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""" # noqa
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return self.execute_command(BF_MADD, key, *items)
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def insert(
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self,
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key,
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items,
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capacity=None,
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error=None,
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noCreate=None,
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expansion=None,
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noScale=None,
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):
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"""
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Add to a Bloom Filter `key` multiple `items`.
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If `nocreate` remain `None` and `key` does not exist, a new Bloom Filter
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`key` will be created with desired probability of false positives `errorRate`
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and expected entries to be inserted as `size`.
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For more information see `BF.INSERT <https://redis.io/commands/bf.insert>`_.
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""" # noqa
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params = [key]
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self.append_capacity(params, capacity)
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self.append_error(params, error)
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self.append_expansion(params, expansion)
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self.append_no_create(params, noCreate)
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self.append_no_scale(params, noScale)
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self.append_items(params, items)
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return self.execute_command(BF_INSERT, *params)
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def exists(self, key, item):
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"""
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Check whether an `item` exists in Bloom Filter `key`.
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For more information see `BF.EXISTS <https://redis.io/commands/bf.exists>`_.
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""" # noqa
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return self.execute_command(BF_EXISTS, key, item)
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def mexists(self, key, *items):
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"""
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Check whether `items` exist in Bloom Filter `key`.
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For more information see `BF.MEXISTS <https://redis.io/commands/bf.mexists>`_.
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""" # noqa
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return self.execute_command(BF_MEXISTS, key, *items)
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def scandump(self, key, iter):
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"""
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Begin an incremental save of the bloom filter `key`.
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This is useful for large bloom filters which cannot fit into the normal SAVE and RESTORE model.
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The first time this command is called, the value of `iter` should be 0.
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This command will return successive (iter, data) pairs until (0, NULL) to indicate completion.
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For more information see `BF.SCANDUMP <https://redis.io/commands/bf.scandump>`_.
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""" # noqa
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if HIREDIS_AVAILABLE:
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raise ModuleError("This command cannot be used when hiredis is available.")
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params = [key, iter]
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options = {}
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options[NEVER_DECODE] = []
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return self.execute_command(BF_SCANDUMP, *params, **options)
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def loadchunk(self, key, iter, data):
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"""
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Restore a filter previously saved using SCANDUMP.
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See the SCANDUMP command for example usage.
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This command will overwrite any bloom filter stored under key.
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Ensure that the bloom filter will not be modified between invocations.
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For more information see `BF.LOADCHUNK <https://redis.io/commands/bf.loadchunk>`_.
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""" # noqa
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return self.execute_command(BF_LOADCHUNK, key, iter, data)
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def info(self, key):
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"""
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Return capacity, size, number of filters, number of items inserted, and expansion rate.
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For more information see `BF.INFO <https://redis.io/commands/bf.info>`_.
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""" # noqa
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return self.execute_command(BF_INFO, key)
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def card(self, key):
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"""
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Returns the cardinality of a Bloom filter - number of items that were added to a Bloom filter and detected as unique
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(items that caused at least one bit to be set in at least one sub-filter).
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For more information see `BF.CARD <https://redis.io/commands/bf.card>`_.
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""" # noqa
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return self.execute_command(BF_CARD, key)
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class CFCommands:
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"""Cuckoo Filter commands."""
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def create(
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self, key, capacity, expansion=None, bucket_size=None, max_iterations=None
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):
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"""
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Create a new Cuckoo Filter `key` an initial `capacity` items.
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For more information see `CF.RESERVE <https://redis.io/commands/cf.reserve>`_.
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""" # noqa
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params = [key, capacity]
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self.append_expansion(params, expansion)
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self.append_bucket_size(params, bucket_size)
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self.append_max_iterations(params, max_iterations)
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return self.execute_command(CF_RESERVE, *params)
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reserve = create
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def add(self, key, item):
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"""
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Add an `item` to a Cuckoo Filter `key`.
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For more information see `CF.ADD <https://redis.io/commands/cf.add>`_.
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""" # noqa
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return self.execute_command(CF_ADD, key, item)
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def addnx(self, key, item):
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"""
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Add an `item` to a Cuckoo Filter `key` only if item does not yet exist.
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Command might be slower that `add`.
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For more information see `CF.ADDNX <https://redis.io/commands/cf.addnx>`_.
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""" # noqa
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return self.execute_command(CF_ADDNX, key, item)
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def insert(self, key, items, capacity=None, nocreate=None):
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"""
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Add multiple `items` to a Cuckoo Filter `key`, allowing the filter
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to be created with a custom `capacity` if it does not yet exist.
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`items` must be provided as a list.
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For more information see `CF.INSERT <https://redis.io/commands/cf.insert>`_.
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""" # noqa
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params = [key]
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self.append_capacity(params, capacity)
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self.append_no_create(params, nocreate)
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self.append_items(params, items)
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return self.execute_command(CF_INSERT, *params)
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def insertnx(self, key, items, capacity=None, nocreate=None):
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"""
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Add multiple `items` to a Cuckoo Filter `key` only if they do not exist yet,
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allowing the filter to be created with a custom `capacity` if it does not yet exist.
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`items` must be provided as a list.
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For more information see `CF.INSERTNX <https://redis.io/commands/cf.insertnx>`_.
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""" # noqa
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params = [key]
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self.append_capacity(params, capacity)
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self.append_no_create(params, nocreate)
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self.append_items(params, items)
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return self.execute_command(CF_INSERTNX, *params)
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def exists(self, key, item):
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"""
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Check whether an `item` exists in Cuckoo Filter `key`.
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For more information see `CF.EXISTS <https://redis.io/commands/cf.exists>`_.
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""" # noqa
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return self.execute_command(CF_EXISTS, key, item)
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def mexists(self, key, *items):
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"""
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Check whether an `items` exist in Cuckoo Filter `key`.
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For more information see `CF.MEXISTS <https://redis.io/commands/cf.mexists>`_.
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""" # noqa
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return self.execute_command(CF_MEXISTS, key, *items)
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def delete(self, key, item):
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"""
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Delete `item` from `key`.
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For more information see `CF.DEL <https://redis.io/commands/cf.del>`_.
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""" # noqa
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return self.execute_command(CF_DEL, key, item)
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def count(self, key, item):
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"""
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Return the number of times an `item` may be in the `key`.
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For more information see `CF.COUNT <https://redis.io/commands/cf.count>`_.
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""" # noqa
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return self.execute_command(CF_COUNT, key, item)
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def scandump(self, key, iter):
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"""
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Begin an incremental save of the Cuckoo filter `key`.
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This is useful for large Cuckoo filters which cannot fit into the normal
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SAVE and RESTORE model.
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The first time this command is called, the value of `iter` should be 0.
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This command will return successive (iter, data) pairs until
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(0, NULL) to indicate completion.
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For more information see `CF.SCANDUMP <https://redis.io/commands/cf.scandump>`_.
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""" # noqa
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return self.execute_command(CF_SCANDUMP, key, iter)
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def loadchunk(self, key, iter, data):
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"""
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Restore a filter previously saved using SCANDUMP. See the SCANDUMP command for example usage.
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This command will overwrite any Cuckoo filter stored under key.
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Ensure that the Cuckoo filter will not be modified between invocations.
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For more information see `CF.LOADCHUNK <https://redis.io/commands/cf.loadchunk>`_.
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""" # noqa
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return self.execute_command(CF_LOADCHUNK, key, iter, data)
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def info(self, key):
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"""
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Return size, number of buckets, number of filter, number of items inserted,
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number of items deleted, bucket size, expansion rate, and max iteration.
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For more information see `CF.INFO <https://redis.io/commands/cf.info>`_.
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""" # noqa
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return self.execute_command(CF_INFO, key)
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class TOPKCommands:
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"""TOP-k Filter commands."""
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def reserve(self, key, k, width, depth, decay):
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"""
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Create a new Top-K Filter `key` with desired probability of false
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positives `errorRate` expected entries to be inserted as `size`.
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For more information see `TOPK.RESERVE <https://redis.io/commands/topk.reserve>`_.
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""" # noqa
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return self.execute_command(TOPK_RESERVE, key, k, width, depth, decay)
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def add(self, key, *items):
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"""
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Add one `item` or more to a Top-K Filter `key`.
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For more information see `TOPK.ADD <https://redis.io/commands/topk.add>`_.
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""" # noqa
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return self.execute_command(TOPK_ADD, key, *items)
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def incrby(self, key, items, increments):
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"""
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Add/increase `items` to a Top-K Sketch `key` by ''increments''.
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Both `items` and `increments` are lists.
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For more information see `TOPK.INCRBY <https://redis.io/commands/topk.incrby>`_.
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Example:
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>>> topkincrby('A', ['foo'], [1])
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""" # noqa
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params = [key]
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self.append_items_and_increments(params, items, increments)
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return self.execute_command(TOPK_INCRBY, *params)
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def query(self, key, *items):
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"""
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Check whether one `item` or more is a Top-K item at `key`.
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For more information see `TOPK.QUERY <https://redis.io/commands/topk.query>`_.
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""" # noqa
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return self.execute_command(TOPK_QUERY, key, *items)
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@deprecated_function(version="4.4.0", reason="deprecated since redisbloom 2.4.0")
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def count(self, key, *items):
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"""
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Return count for one `item` or more from `key`.
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For more information see `TOPK.COUNT <https://redis.io/commands/topk.count>`_.
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""" # noqa
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return self.execute_command(TOPK_COUNT, key, *items)
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def list(self, key, withcount=False):
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"""
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Return full list of items in Top-K list of `key`.
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If `withcount` set to True, return full list of items
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with probabilistic count in Top-K list of `key`.
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For more information see `TOPK.LIST <https://redis.io/commands/topk.list>`_.
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""" # noqa
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params = [key]
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if withcount:
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params.append("WITHCOUNT")
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return self.execute_command(TOPK_LIST, *params)
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def info(self, key):
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"""
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Return k, width, depth and decay values of `key`.
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For more information see `TOPK.INFO <https://redis.io/commands/topk.info>`_.
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""" # noqa
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return self.execute_command(TOPK_INFO, key)
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class TDigestCommands:
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def create(self, key, compression=100):
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"""
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Allocate the memory and initialize the t-digest.
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For more information see `TDIGEST.CREATE <https://redis.io/commands/tdigest.create>`_.
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""" # noqa
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return self.execute_command(TDIGEST_CREATE, key, "COMPRESSION", compression)
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def reset(self, key):
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"""
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Reset the sketch `key` to zero - empty out the sketch and re-initialize it.
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For more information see `TDIGEST.RESET <https://redis.io/commands/tdigest.reset>`_.
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""" # noqa
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return self.execute_command(TDIGEST_RESET, key)
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def add(self, key, values):
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"""
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Adds one or more observations to a t-digest sketch `key`.
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For more information see `TDIGEST.ADD <https://redis.io/commands/tdigest.add>`_.
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""" # noqa
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return self.execute_command(TDIGEST_ADD, key, *values)
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def merge(self, destination_key, num_keys, *keys, compression=None, override=False):
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"""
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Merges all of the values from `keys` to 'destination-key' sketch.
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It is mandatory to provide the `num_keys` before passing the input keys and
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the other (optional) arguments.
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If `destination_key` already exists its values are merged with the input keys.
|
||
|
If you wish to override the destination key contents use the `OVERRIDE` parameter.
|
||
|
|
||
|
For more information see `TDIGEST.MERGE <https://redis.io/commands/tdigest.merge>`_.
|
||
|
""" # noqa
|
||
|
params = [destination_key, num_keys, *keys]
|
||
|
if compression is not None:
|
||
|
params.extend(["COMPRESSION", compression])
|
||
|
if override:
|
||
|
params.append("OVERRIDE")
|
||
|
return self.execute_command(TDIGEST_MERGE, *params)
|
||
|
|
||
|
def min(self, key):
|
||
|
"""
|
||
|
Return minimum value from the sketch `key`. Will return DBL_MAX if the sketch is empty.
|
||
|
For more information see `TDIGEST.MIN <https://redis.io/commands/tdigest.min>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(TDIGEST_MIN, key)
|
||
|
|
||
|
def max(self, key):
|
||
|
"""
|
||
|
Return maximum value from the sketch `key`. Will return DBL_MIN if the sketch is empty.
|
||
|
For more information see `TDIGEST.MAX <https://redis.io/commands/tdigest.max>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(TDIGEST_MAX, key)
|
||
|
|
||
|
def quantile(self, key, quantile, *quantiles):
|
||
|
"""
|
||
|
Returns estimates of one or more cutoffs such that a specified fraction of the
|
||
|
observations added to this t-digest would be less than or equal to each of the
|
||
|
specified cutoffs. (Multiple quantiles can be returned with one call)
|
||
|
For more information see `TDIGEST.QUANTILE <https://redis.io/commands/tdigest.quantile>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(TDIGEST_QUANTILE, key, quantile, *quantiles)
|
||
|
|
||
|
def cdf(self, key, value, *values):
|
||
|
"""
|
||
|
Return double fraction of all points added which are <= value.
|
||
|
For more information see `TDIGEST.CDF <https://redis.io/commands/tdigest.cdf>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(TDIGEST_CDF, key, value, *values)
|
||
|
|
||
|
def info(self, key):
|
||
|
"""
|
||
|
Return Compression, Capacity, Merged Nodes, Unmerged Nodes, Merged Weight, Unmerged Weight
|
||
|
and Total Compressions.
|
||
|
For more information see `TDIGEST.INFO <https://redis.io/commands/tdigest.info>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(TDIGEST_INFO, key)
|
||
|
|
||
|
def trimmed_mean(self, key, low_cut_quantile, high_cut_quantile):
|
||
|
"""
|
||
|
Return mean value from the sketch, excluding observation values outside
|
||
|
the low and high cutoff quantiles.
|
||
|
For more information see `TDIGEST.TRIMMED_MEAN <https://redis.io/commands/tdigest.trimmed_mean>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(
|
||
|
TDIGEST_TRIMMED_MEAN, key, low_cut_quantile, high_cut_quantile
|
||
|
)
|
||
|
|
||
|
def rank(self, key, value, *values):
|
||
|
"""
|
||
|
Retrieve the estimated rank of value (the number of observations in the sketch
|
||
|
that are smaller than value + half the number of observations that are equal to value).
|
||
|
|
||
|
For more information see `TDIGEST.RANK <https://redis.io/commands/tdigest.rank>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(TDIGEST_RANK, key, value, *values)
|
||
|
|
||
|
def revrank(self, key, value, *values):
|
||
|
"""
|
||
|
Retrieve the estimated rank of value (the number of observations in the sketch
|
||
|
that are larger than value + half the number of observations that are equal to value).
|
||
|
|
||
|
For more information see `TDIGEST.REVRANK <https://redis.io/commands/tdigest.revrank>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(TDIGEST_REVRANK, key, value, *values)
|
||
|
|
||
|
def byrank(self, key, rank, *ranks):
|
||
|
"""
|
||
|
Retrieve an estimation of the value with the given rank.
|
||
|
|
||
|
For more information see `TDIGEST.BY_RANK <https://redis.io/commands/tdigest.by_rank>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(TDIGEST_BYRANK, key, rank, *ranks)
|
||
|
|
||
|
def byrevrank(self, key, rank, *ranks):
|
||
|
"""
|
||
|
Retrieve an estimation of the value with the given reverse rank.
|
||
|
|
||
|
For more information see `TDIGEST.BY_REVRANK <https://redis.io/commands/tdigest.by_revrank>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(TDIGEST_BYREVRANK, key, rank, *ranks)
|
||
|
|
||
|
|
||
|
class CMSCommands:
|
||
|
"""Count-Min Sketch Commands"""
|
||
|
|
||
|
def initbydim(self, key, width, depth):
|
||
|
"""
|
||
|
Initialize a Count-Min Sketch `key` to dimensions (`width`, `depth`) specified by user.
|
||
|
For more information see `CMS.INITBYDIM <https://redis.io/commands/cms.initbydim>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(CMS_INITBYDIM, key, width, depth)
|
||
|
|
||
|
def initbyprob(self, key, error, probability):
|
||
|
"""
|
||
|
Initialize a Count-Min Sketch `key` to characteristics (`error`, `probability`) specified by user.
|
||
|
For more information see `CMS.INITBYPROB <https://redis.io/commands/cms.initbyprob>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(CMS_INITBYPROB, key, error, probability)
|
||
|
|
||
|
def incrby(self, key, items, increments):
|
||
|
"""
|
||
|
Add/increase `items` to a Count-Min Sketch `key` by ''increments''.
|
||
|
Both `items` and `increments` are lists.
|
||
|
For more information see `CMS.INCRBY <https://redis.io/commands/cms.incrby>`_.
|
||
|
|
||
|
Example:
|
||
|
|
||
|
>>> cmsincrby('A', ['foo'], [1])
|
||
|
""" # noqa
|
||
|
params = [key]
|
||
|
self.append_items_and_increments(params, items, increments)
|
||
|
return self.execute_command(CMS_INCRBY, *params)
|
||
|
|
||
|
def query(self, key, *items):
|
||
|
"""
|
||
|
Return count for an `item` from `key`. Multiple items can be queried with one call.
|
||
|
For more information see `CMS.QUERY <https://redis.io/commands/cms.query>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(CMS_QUERY, key, *items)
|
||
|
|
||
|
def merge(self, destKey, numKeys, srcKeys, weights=[]):
|
||
|
"""
|
||
|
Merge `numKeys` of sketches into `destKey`. Sketches specified in `srcKeys`.
|
||
|
All sketches must have identical width and depth.
|
||
|
`Weights` can be used to multiply certain sketches. Default weight is 1.
|
||
|
Both `srcKeys` and `weights` are lists.
|
||
|
For more information see `CMS.MERGE <https://redis.io/commands/cms.merge>`_.
|
||
|
""" # noqa
|
||
|
params = [destKey, numKeys]
|
||
|
params += srcKeys
|
||
|
self.append_weights(params, weights)
|
||
|
return self.execute_command(CMS_MERGE, *params)
|
||
|
|
||
|
def info(self, key):
|
||
|
"""
|
||
|
Return width, depth and total count of the sketch.
|
||
|
For more information see `CMS.INFO <https://redis.io/commands/cms.info>`_.
|
||
|
""" # noqa
|
||
|
return self.execute_command(CMS_INFO, key)
|