mirror of
https://github.com/valitydev/wazuh-kibana-app.git
synced 2024-11-07 18:28:55 +00:00
340 lines
13 KiB
JavaScript
340 lines
13 KiB
JavaScript
// External libraries
|
|
const cron = require('node-cron');
|
|
const needle = require('needle');
|
|
const getPath = require('../util/get-path');
|
|
|
|
// Colors for console logging
|
|
const colors = require('ansicolors');
|
|
const blueWazuh = colors.blue('wazuh');
|
|
|
|
const APP_OBJECTS_FILE = './integration_files/app_objects_file_monitoring.json';
|
|
|
|
module.exports = (server, options) => {
|
|
// Elastic JS Client
|
|
const elasticRequest = server.plugins.elasticsearch.getCluster('admin');
|
|
|
|
// Initialize
|
|
let agentsArray = [];
|
|
let index_pattern = "wazuh-monitoring-3.x-*";
|
|
let index_prefix = "wazuh-monitoring-3.x-";
|
|
let fDate = new Date().toISOString().replace(/T/, '-').replace(/\..+/, '').replace(/-/g, '.').replace(/:/g, '').slice(0, -7);
|
|
let todayIndex = index_prefix + fDate;
|
|
let packageJSON = {};
|
|
let app_objects = {};
|
|
|
|
// Read Wazuh App package file
|
|
try {
|
|
packageJSON = require('../package.json');
|
|
} catch (e) {
|
|
server.log([blueWazuh, 'monitoring', 'error'], 'Could not read the Wazuh package file due to ' + e);
|
|
}
|
|
|
|
// Check status and get agent status array
|
|
const checkStatus = (apiEntry, maxSize, offset) => {
|
|
if (!maxSize) {
|
|
server.log([blueWazuh, 'monitoring', 'error'], 'You must provide a max size');
|
|
}
|
|
|
|
let payload = {
|
|
'offset': offset ? offset: 0,
|
|
'limit': (250 < maxSize) ? 250 : maxSize
|
|
};
|
|
|
|
let options = {
|
|
headers: {
|
|
'wazuh-app-version': packageJSON.version
|
|
},
|
|
username: apiEntry.user,
|
|
password: apiEntry.password,
|
|
rejectUnauthorized: !apiEntry.insecure
|
|
};
|
|
|
|
needle.request('get', `${getPath(apiEntry)}/agents`, payload, options, (error, response) => {
|
|
if (!error && !response.error && response.body.data.items) {
|
|
agentsArray = agentsArray.concat(response.body.data.items);
|
|
if ((payload.limit + payload.offset) < maxSize) {
|
|
checkStatus(apiEntry, response.body.data.totalItems, payload.limit + payload.offset);
|
|
} else {
|
|
saveStatus();
|
|
}
|
|
} else {
|
|
server.log([blueWazuh, 'monitoring', 'error'], 'Can not access Wazuh API');
|
|
}
|
|
});
|
|
};
|
|
|
|
// Check API status twice and get agents total items
|
|
const checkAndSaveStatus = (apiEntry) => {
|
|
let payload = {
|
|
'offset': 0,
|
|
'limit': 1
|
|
};
|
|
|
|
let options = {
|
|
headers: {
|
|
'wazuh-app-version': packageJSON.version
|
|
},
|
|
username: apiEntry.user,
|
|
password: apiEntry.password,
|
|
rejectUnauthorized: !apiEntry.insecure
|
|
};
|
|
needle('get', `${getPath(apiEntry)}/agents`, payload, options)
|
|
.then((response) => {
|
|
if (!response.error && response.body.data && response.body.data.totalItems) {
|
|
checkStatus(apiEntry, response.body.data.totalItems);
|
|
} else {
|
|
server.log([blueWazuh, 'monitoring', 'error'], 'Wazuh API credentials not found or are not correct. Open the app in your browser and configure it to start monitoring agents.');
|
|
}
|
|
});
|
|
};
|
|
|
|
// Load Wazuh API credentials from Elasticsearch document
|
|
const loadCredentials = (apiEntries) => {
|
|
if (typeof apiEntries === 'undefined' || !('hits' in apiEntries)) return;
|
|
|
|
const filteredApis = apiEntries.hits.filter((element, index, self) =>
|
|
index === self.findIndex((t) => (
|
|
t._source.api_user === element._source.api_user &&
|
|
t._source.api_password === element._source.api_password &&
|
|
t._source.url === element._source.url &&
|
|
t._source.api_port === element._source.api_port
|
|
))
|
|
);
|
|
|
|
for(let element of filteredApis) {
|
|
let apiEntry = {
|
|
'user': element._source.api_user,
|
|
'password': Buffer.from(element._source.api_password, 'base64').toString("ascii"),
|
|
'url': element._source.url,
|
|
'port': element._source.api_port,
|
|
'insecure': element._source.insecure
|
|
};
|
|
if (apiEntry.error) {
|
|
server.log([blueWazuh, 'monitoring', 'error'], `Error getting wazuh-api data: ${apiEntry.error}`);
|
|
break;
|
|
}
|
|
checkAndSaveStatus(apiEntry);
|
|
}
|
|
};
|
|
|
|
// Get API configuration from elastic and callback to loadCredentials
|
|
const getConfig = (callback) => {
|
|
elasticRequest.callWithInternalUser('search', {
|
|
index: '.wazuh',
|
|
type: 'wazuh-configuration'
|
|
})
|
|
.then(data => {
|
|
if (data.hits.total > 0) {
|
|
callback(data.hits);
|
|
} else {
|
|
callback({
|
|
'error': 'no credentials',
|
|
'error_code': 1
|
|
});
|
|
}
|
|
})
|
|
.catch(() => {
|
|
callback({
|
|
'error': 'no elasticsearch',
|
|
'error_code': 2
|
|
});
|
|
});
|
|
};
|
|
|
|
// Importing Wazuh app visualizations and dashboards
|
|
const importAppObjects = (id) => {
|
|
server.log([blueWazuh, 'monitoring', 'info'], 'Importing Wazuh app visualizations...');
|
|
|
|
try {
|
|
app_objects = require(APP_OBJECTS_FILE);
|
|
} catch (e) {
|
|
server.log([blueWazuh, 'monitoring', 'error'], 'Could not read the objects file.');
|
|
server.log([blueWazuh, 'monitoring', 'error'], 'Path: ' + APP_OBJECTS_FILE);
|
|
server.log([blueWazuh, 'monitoring', 'error'], 'Exception: ' + e);
|
|
}
|
|
|
|
let body = '';
|
|
for(let element of app_objects){
|
|
body += '{ "index": { "_index": ".kibana", "_type": "doc", ' +
|
|
'"_id": "' + element._type + ':' + element._id + '" } }\n';
|
|
|
|
let temp = {};
|
|
let aux = JSON.stringify(element._source);
|
|
aux = aux.replace("wazuh-monitoring", id);
|
|
aux = JSON.parse(aux);
|
|
temp[element._type] = aux;
|
|
|
|
if (temp[element._type].kibanaSavedObjectMeta.searchSourceJSON.index) {
|
|
temp[element._type].kibanaSavedObjectMeta.searchSourceJSON.index = id;
|
|
}
|
|
|
|
temp["type"] = element._type;
|
|
body += JSON.stringify(temp) + "\n";
|
|
}
|
|
|
|
elasticRequest.callWithInternalUser('bulk', {
|
|
index: '.kibana',
|
|
body: body
|
|
})
|
|
.then(() => elasticRequest.callWithInternalUser('indices.refresh', {
|
|
index: ['.kibana', index_pattern]
|
|
}))
|
|
.then(() => {
|
|
server.log([blueWazuh, 'monitoring', 'info'], 'Wazuh app visualizations were successfully installed. App ready to be used.');
|
|
})
|
|
.catch((error) => {
|
|
server.log([blueWazuh, 'server', 'error'], 'Error importing objects into elasticsearch. Bulk request failed.');
|
|
});
|
|
};
|
|
|
|
// fetchAgents on demand
|
|
const fetchAgents = () => getConfig(loadCredentials);
|
|
|
|
// Configure Kibana patterns.
|
|
const configureKibana = () => {
|
|
server.log([blueWazuh, 'monitoring', 'info'], `Creating index pattern: ${index_pattern}`);
|
|
|
|
let patternId = 'index-pattern:' + index_pattern;
|
|
elasticRequest.callWithInternalUser('create', {
|
|
index: '.kibana',
|
|
type: 'doc',
|
|
id: patternId,
|
|
body: {
|
|
"type": 'index-pattern',
|
|
"index-pattern": {
|
|
"title": index_pattern,
|
|
"timeFieldName": '@timestamp'
|
|
}
|
|
}
|
|
})
|
|
.then((resp) => {
|
|
server.log([blueWazuh, 'monitoring', 'info'], 'Created index pattern: ' + index_pattern);
|
|
importAppObjects(index_pattern);
|
|
})
|
|
.catch((error) => {
|
|
server.log([blueWazuh, 'monitoring', 'error'], 'Error creating index-pattern due to ' + error);
|
|
});;
|
|
};
|
|
|
|
// Creating wazuh-monitoring index
|
|
const createIndex = (todayIndex) => {
|
|
elasticRequest.callWithInternalUser('indices.create', { index: todayIndex })
|
|
.then(() => {
|
|
server.log([blueWazuh, 'monitoring', 'info'], 'Successfully created today index.');
|
|
insertDocument(todayIndex);
|
|
})
|
|
.catch((error) => {
|
|
server.log([blueWazuh, 'monitoring', 'error'], `Could not create ${todayIndex} index on elasticsearch due to ` + error);
|
|
});
|
|
};
|
|
|
|
// Inserting one document per agent into Elastic. Bulk.
|
|
const insertDocument = (todayIndex) => {
|
|
let body = '';
|
|
if (agentsArray.length > 0) {
|
|
let managerName = agentsArray[0].name;
|
|
|
|
for(let element of agentsArray) {
|
|
body += '{ "index": { "_index": "' + todayIndex + '", "_type": "wazuh-agent" } }\n';
|
|
let date = new Date(Date.now()).toISOString();
|
|
element["@timestamp"] = date;
|
|
element["host"] = managerName;
|
|
body += JSON.stringify(element) + "\n";
|
|
}
|
|
|
|
if (body === '') return;
|
|
|
|
elasticRequest.callWithInternalUser('bulk', {
|
|
index: todayIndex,
|
|
type: 'agent',
|
|
body: body
|
|
})
|
|
.then((response) => agentsArray.length = 0)
|
|
.catch((error) => {
|
|
server.log([blueWazuh, 'monitoring', 'error'], 'Error inserting agent data into elasticsearch. Bulk request failed due to ' + error);
|
|
});
|
|
}
|
|
};
|
|
|
|
// Save agent status into elasticsearch, create index and/or insert document
|
|
const saveStatus = () => {
|
|
fDate = new Date().toISOString().replace(/T/, '-').replace(/\..+/, '').replace(/-/g, '.').replace(/:/g, '').slice(0, -7);
|
|
todayIndex = index_prefix + fDate;
|
|
|
|
elasticRequest.callWithInternalUser('indices.exists', { index: todayIndex })
|
|
.then((result) => {
|
|
if (result) insertDocument(todayIndex);
|
|
else createIndex(todayIndex);
|
|
})
|
|
.catch((error) => {
|
|
server.log([blueWazuh, 'monitoring', 'error'], `Could not check if the index ${todayIndex} exists due to ` + error);
|
|
});
|
|
};
|
|
|
|
// Main. First execution when installing / loading App.
|
|
const init = () => {
|
|
server.log([blueWazuh, 'monitoring', 'info'], 'Creating today index...');
|
|
saveStatus();
|
|
|
|
let patternId = 'index-pattern:' + index_pattern;
|
|
elasticRequest.callWithInternalUser('get', {
|
|
index: '.kibana',
|
|
type: 'doc',
|
|
id: patternId
|
|
})
|
|
.then((data) => {
|
|
server.log([blueWazuh, 'monitoring', 'info'], 'Skipping index-pattern creation. Already exists.');
|
|
})
|
|
.catch((error) => {
|
|
server.log([blueWazuh, 'monitoring', 'info'], "Didn't find wazuh-monitoring pattern for Kibana v6.x. Proceeding to create it...");
|
|
|
|
elasticRequest.callWithInternalUser('delete', {
|
|
index: '.kibana',
|
|
type: 'doc',
|
|
id: 'index-pattern:wazuh-monitoring-*'
|
|
})
|
|
.then((resp) => {
|
|
server.log([blueWazuh, 'monitoring', 'info'], "Successfully deleted old wazuh-monitoring pattern.");
|
|
})
|
|
.catch((error) => {
|
|
server.log([blueWazuh, 'monitoring', 'error'], "Didn't find old wazuh-monitoring pattern. Skipping deletion.");
|
|
});
|
|
configureKibana();
|
|
});
|
|
};
|
|
|
|
// Check Elasticsearch Server status and .kibana index presence
|
|
const checkElasticsearchServer = () => {
|
|
return new Promise(function (resolve, reject) {
|
|
elasticRequest.callWithInternalUser('indices.exists', { index: ".kibana" })
|
|
.then((data) => {
|
|
if (data) server.plugins.elasticsearch.waitUntilReady().then((data) => { resolve(data); });
|
|
else reject(data);
|
|
})
|
|
.catch((error) => {
|
|
reject(error);
|
|
});
|
|
})
|
|
}
|
|
|
|
// Wait until Kibana server is ready
|
|
const checkKibanaStatus = () => {
|
|
checkElasticsearchServer().then((data) => { init() })
|
|
.catch((error) => {
|
|
server.log([blueWazuh, 'monitoring', 'info'], 'Waiting for Kibana and Elasticsearch servers to be ready...');
|
|
setTimeout(() => checkKibanaStatus(), 3000);
|
|
});
|
|
};
|
|
|
|
// Check Kibana index and if it is prepared, start the initialization of Wazuh App.
|
|
checkKibanaStatus();
|
|
|
|
// Cron tab for getting agent status.
|
|
cron.schedule('0 */10 * * * *', () => {
|
|
agentsArray.length = 0;
|
|
getConfig(loadCredentials);
|
|
}, true);
|
|
|
|
module.exports = fetchAgents;
|
|
};
|