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Merge pull request #756 from BAngelique/backkend-elasticsearch-withtests
Backend elasticsearch withtests
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,166 @@ | ||
| #! /usr/bin/env python | ||
| # -*- coding: utf-8 -*- | ||
|
|
||
| # This file is part of IVRE. | ||
| # Copyright 2011 - 2019 Pierre LALET <pierre.lalet@cea.fr> | ||
| # | ||
| # IVRE is free software: you can redistribute it and/or modify it | ||
| # under the terms of the GNU General Public License as published by | ||
| # the Free Software Foundation, either version 3 of the License, or | ||
| # (at your option) any later version. | ||
| # | ||
| # IVRE is distributed in the hope that it will be useful, but WITHOUT | ||
| # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | ||
| # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | ||
| # License for more details. | ||
| # | ||
| # You should have received a copy of the GNU General Public License | ||
| # along with IVRE. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| """This sub-module contains functions to interact with the ElasticSearch | ||
| databases. | ||
| """ | ||
|
|
||
| try: | ||
| from urllib.parse import unquote | ||
| except ImportError: | ||
| from urllib import unquote | ||
|
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||
|
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| from elasticsearch import Elasticsearch, helpers | ||
|
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| from ivre.db import DB, DBActive, DBView | ||
| from ivre import utils | ||
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|
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| class ElasticDB(DB): | ||
|
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||
| # filters | ||
| flt_empty = {'match_all': {}} | ||
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| def __init__(self, url): | ||
| super(ElasticDB, self).__init__() | ||
| self.username = '' | ||
| self.password = '' | ||
| self.hosts = None | ||
| if '@' in url.netloc: | ||
| username, hostname = url.netloc.split('@', 1) | ||
| if ':' in username: | ||
| self.username, self.password = (unquote(val) for val in | ||
| username.split(':', 1)) | ||
| else: | ||
| self.username = unquote(username) | ||
| if hostname: | ||
| self.hosts = [hostname] | ||
| elif url.netloc: | ||
| self.hosts = [url.netloc] | ||
| index_prefix = url.path.lstrip('/') | ||
| if index_prefix: | ||
| self.index_prefix = index_prefix + '-' | ||
| else: | ||
| self.index_prefix = 'ivre-' | ||
| self.params = dict(x.split('=', 1) if '=' in x else (x, None) | ||
| for x in url.query.split('&') if x) | ||
|
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||
| def init(self): | ||
| """Initializes the mappings.""" | ||
| for idxnum, mapping in enumerate(self.mappings): | ||
| idxname = self.indexes[idxnum] | ||
| self.db_client.indices.delete( | ||
| index=idxname, | ||
| ignore=[400, 404], | ||
| ) | ||
| self.db_client.indices.create( | ||
| index=idxname, | ||
| body={"mappings": {"properties": mapping}}, | ||
| ignore=400, | ||
| ) | ||
|
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||
| @property | ||
| def db_client(self): | ||
| """The DB connection.""" | ||
| try: | ||
| return self._db_client | ||
| except AttributeError: | ||
| self._db_client = Elasticsearch( | ||
| hosts=self.hosts, | ||
| http_auth=(self.username, self.password) | ||
| ) | ||
| return self._db_client | ||
|
|
||
| @property | ||
| def server_info(self): | ||
| """Server information.""" | ||
| try: | ||
| return self._server_info | ||
| except AttributeError: | ||
| self._server_info = self.db_client.info() | ||
| return self._server_info | ||
|
|
||
| @staticmethod | ||
| def to_binary(data): | ||
| return utils.encode_b64(data).decode() | ||
|
|
||
| @staticmethod | ||
| def from_binary(data): | ||
| return utils.decode_b64(data.encode()) | ||
|
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| @staticmethod | ||
| def searchnonexistent(): | ||
| return {"match": {"_id": 0}} | ||
|
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||
| @classmethod | ||
| def searchhost(cls, addr, neg=False): | ||
| """Filters (if `neg` == True, filters out) one particular host | ||
| (IP address). | ||
| """ | ||
| return {"match": {"addr": addr}} | ||
|
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| @classmethod | ||
| def searchhosts(cls, hosts, neg=False): | ||
| pass | ||
|
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|
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| class ElasticDBActive(ElasticDB, DBActive): | ||
|
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| mappings = [ | ||
| { | ||
| "addr": {"type": "ip"}, | ||
| }, | ||
| ] | ||
| index_hosts = 0 | ||
|
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| def store_or_merge_host(self, host): | ||
| raise NotImplementedError | ||
|
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| def store_host(self, host): | ||
| self.db_client.index(index=self.indexes[0], | ||
| body=host) | ||
|
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| def count(self, flt): | ||
| return self.db_client.search( | ||
| body={"query": flt}, | ||
| index=self.indexes[0], | ||
| size=0 | ||
| )['hits']['total']['value'] | ||
|
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| def get(self, spec, **kargs): | ||
| """Queries the active index.""" | ||
| for rec in helpers.scan(self.db_client, query={"query": spec}, | ||
| index=self.indexes[0], | ||
| ignore_unavailable=True): | ||
| yield dict(rec['_source'], _id=rec['_id']) | ||
|
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| class ElasticDBView(ElasticDBActive, DBView): | ||
|
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| def __init__(self, url): | ||
| super(ElasticDBView, self).__init__(url) | ||
| self.indexes = ['%s%s' % (self.index_prefix, | ||
| self.params.pop('indexname_hosts', 'hosts'))] | ||
|
|
||
| def store_or_merge_host(self, host): | ||
| if not self.merge_host(host): | ||
| self.store_host(host) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| elasticsearch | ||
| pycrypto | ||
| future | ||
| bottle |
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