[elastalert-server]TypeError: Cannot read property 'search' of undefined

[S733]

Hi,
I'm getting the following error after I upgraded from elastalert-server:20200831. Getting the same error in v20201101 and v20201109. The error is not coming if I downgrade to v20200831.

17:37:58.095Z  INFO elastalert-server: Routes:  Successfully handled GET request for '/'.
Error: unable to verify the first certificate
    at TLSSocket.onConnectSecure (node:_tls_wrap:1497:34)
    at TLSSocket.emit (node:events:327:20)
    at TLSSocket._finishInit (node:_tls_wrap:932:8)
    at TLSWrap.ssl.onhandshakedone (node:_tls_wrap:706:12) {
  code: 'UNABLE_TO_VERIFY_LEAF_SIGNATURE',
  config: {
    url: 'https://user:[email protected]:9200',
    method: 'get',
    headers: {
      Accept: 'application/json, text/plain, */*',
      'User-Agent': 'axios/0.21.0'
    },
    transformRequest: [ [Function: transformRequest] ],
    transformResponse: [ [Function: transformResponse] ],
    timeout: 0,
    adapter: [Function: httpAdapter],
    xsrfCookieName: 'XSRF-TOKEN',
    xsrfHeaderName: 'X-XSRF-TOKEN',
    maxContentLength: -1,
    maxBodyLength: -1,
    validateStatus: [Function: validateStatus],
    data: undefined
  },
  request: <ref *1> Writable {
    _writableState: WritableState {
      objectMode: false,
      highWaterMark: 16384,
      finalCalled: false,
      needDrain: false,
      ending: false,
      ended: false,
      finished: false,
      destroyed: false,
      decodeStrings: true,
      defaultEncoding: 'utf8',
      length: 0,
      writing: false,
      corked: 0,
      sync: true,
      bufferProcessing: false,
      onwrite: [Function: bound onwrite],
      writecb: null,
      writelen: 0,
      afterWriteTickInfo: null,
      buffered: [],
      bufferedIndex: 0,
      allBuffers: true,
      allNoop: true,
      pendingcb: 0,
      constructed: true,
      prefinished: false,
      errorEmitted: false,
      emitClose: true,
      autoDestroy: true,
      errored: null,
      closed: false,
      closeEmitted: false,
      [Symbol(kOnFinished)]: []
    },
    _events: [Object: null prototype] {
      response: [Function: handleResponse],
      error: [Function: handleRequestError]
    },
    _eventsCount: 2,
    _maxListeners: undefined,
    _options: {
      maxRedirects: 21,
      maxBodyLength: 10485760,
      protocol: 'https:',
      path: '/',
      method: 'GET',
      headers: [Object],
      agent: undefined,
      agents: [Object],
      auth: 'user:pass',
      hostname: '10.0.0.223',
      port: '9200',
      nativeProtocols: [Object],
      pathname: '/'
    },
    _ended: true,
    _ending: true,
    _redirectCount: 0,
    _redirects: [],
    _requestBodyLength: 0,
    _requestBodyBuffers: [],
    _onNativeResponse: [Function (anonymous)],
    _currentRequest: ClientRequest {
      _events: [Object: null prototype],
      _eventsCount: 7,
      _maxListeners: undefined,
      outputData: [],
      outputSize: 0,
      writable: true,
      destroyed: false,
      _last: true,
      chunkedEncoding: false,
      shouldKeepAlive: false,
      _defaultKeepAlive: true,
      useChunkedEncodingByDefault: false,
      sendDate: false,
      _removedConnection: false,
      _removedContLen: false,
      _removedTE: false,
      _contentLength: 0,
      _hasBody: true,
      _trailer: '',
      finished: true,
      _headerSent: true,
      _closed: false,
      socket: [TLSSocket],
      _header: 'GET / HTTP/1.1\r\n' +
        'Accept: application/json, text/plain, */*\r\n' +
        'User-Agent: axios/0.21.0\r\n' +
        'Host: 10.0.0.223:9200\r\n' +
        'Authorization: Basic YmVhdHN1cVFIb3A=\r\n' +
        'Connection: close\r\n' +
        '\r\n',
      _keepAliveTimeout: 0,
      _onPendingData: [Function: noopPendingOutput],
      agent: [Agent],
      socketPath: undefined,
      method: 'GET',
      maxHeaderSize: undefined,
      insecureHTTPParser: undefined,
      path: '/',
      _ended: false,
      res: null,
      aborted: false,
      timeoutCb: null,
      upgradeOrConnect: false,
      parser: null,
      maxHeadersCount: null,
      reusedSocket: false,
      host: '10.0.0.223',
      protocol: 'https:',
      _redirectable: [Circular *1],
      [Symbol(kCapture)]: false,
      [Symbol(kNeedDrain)]: false,
      [Symbol(corked)]: 0,
      [Symbol(kOutHeaders)]: [Object: null prototype]
    },
    _currentUrl: 'https://user:[email protected]:9200/',
    [Symbol(kCapture)]: false
  },
  response: undefined,
  isAxiosError: true,
  toJSON: [Function: toJSON]
}
Error: unable to verify the first certificate
    at TLSSocket.onConnectSecure (node:_tls_wrap:1497:34)
    at TLSSocket.emit (node:events:327:20)
    at TLSSocket._finishInit (node:_tls_wrap:932:8)
    at TLSWrap.ssl.onhandshakedone (node:_tls_wrap:706:12) {
  code: 'UNABLE_TO_VERIFY_LEAF_SIGNATURE',
  config: {
    url: 'https://user:[email protected]:9200',
    method: 'get',
    headers: {
      Accept: 'application/json, text/plain, */*',
      'User-Agent': 'axios/0.21.0'
    },
    transformRequest: [ [Function: transformRequest] ],
    transformResponse: [ [Function: transformResponse] ],
    timeout: 0,
    adapter: [Function: httpAdapter],
    xsrfCookieName: 'XSRF-TOKEN',
    xsrfHeaderName: 'X-XSRF-TOKEN',
    maxContentLength: -1,
    maxBodyLength: -1,
    validateStatus: [Function: validateStatus],
    data: undefined
  },
  request: <ref *1> Writable {
    _writableState: WritableState {
      objectMode: false,
      highWaterMark: 16384,
      finalCalled: false,
      needDrain: false,
      ending: false,
      ended: false,
      finished: false,
      destroyed: false,
      decodeStrings: true,
      defaultEncoding: 'utf8',
      length: 0,
      writing: false,
      corked: 0,
      sync: true,
      bufferProcessing: false,
      onwrite: [Function: bound onwrite],
      writecb: null,
      writelen: 0,
      afterWriteTickInfo: null,
      buffered: [],
      bufferedIndex: 0,
      allBuffers: true,
      allNoop: true,
      pendingcb: 0,
      constructed: true,
      prefinished: false,
      errorEmitted: false,
      emitClose: true,
      autoDestroy: true,
      errored: null,
      closed: false,
      closeEmitted: false,
      [Symbol(kOnFinished)]: []
    },
    _events: [Object: null prototype] {
      response: [Function: handleResponse],
      error: [Function: handleRequestError]
    },
    _eventsCount: 2,
    _maxListeners: undefined,
    _options: {
      maxRedirects: 21,
      maxBodyLength: 10485760,
      protocol: 'https:',
      path: '/',
      method: 'GET',
      headers: [Object],
      agent: undefined,
      agents: [Object],
      auth: 'user:pass',
      hostname: '10.0.0.223',
      port: '9200',
      nativeProtocols: [Object],
      pathname: '/'
    },
    _ended: true,
    _ending: true,
    _redirectCount: 0,
    _redirects: [],
    _requestBodyLength: 0,
    _requestBodyBuffers: [],
    _onNativeResponse: [Function (anonymous)],
    _currentRequest: ClientRequest {
      _events: [Object: null prototype],
      _eventsCount: 7,
      _maxListeners: undefined,
      outputData: [],
      outputSize: 0,
      writable: true,
      destroyed: false,
      _last: true,
      chunkedEncoding: false,
      shouldKeepAlive: false,
      _defaultKeepAlive: true,
      useChunkedEncodingByDefault: false,
      sendDate: false,
      _removedConnection: false,
      _removedContLen: false,
      _removedTE: false,
      _contentLength: 0,
      _hasBody: true,
      _trailer: '',
      finished: true,
      _headerSent: true,
      _closed: false,
      socket: [TLSSocket],
      _header: 'GET / HTTP/1.1\r\n' +
        'Accept: application/json, text/plain, */*\r\n' +
        'User-Agent: axios/0.21.0\r\n' +
        'Host: 10.0.0.223:9200\r\n' +
        'Authorization: Basic YmVhdHN1cVFIb3A=\r\n' +
        'Connection: close\r\n' +
        '\r\n',
      _keepAliveTimeout: 0,
      _onPendingData: [Function: noopPendingOutput],
      agent: [Agent],
      socketPath: undefined,
      method: 'GET',
      maxHeaderSize: undefined,
      insecureHTTPParser: undefined,
      path: '/',
      _ended: false,
      res: null,
      aborted: false,
      timeoutCb: null,
      upgradeOrConnect: false,
      parser: null,
      maxHeadersCount: null,
      reusedSocket: false,
      host: '10.0.0.223',
      protocol: 'https:',
      _redirectable: [Circular *1],
      [Symbol(kCapture)]: false,
      [Symbol(kNeedDrain)]: false,
      [Symbol(corked)]: 0,
      [Symbol(kOutHeaders)]: [Object: null prototype]
    },
    _currentUrl: 'https://user:[email protected]:9200/',
    [Symbol(kCapture)]: false
  },
  response: undefined,
  isAxiosError: true,
  toJSON: [Function: toJSON]
}
TypeError: Cannot read property 'search' of undefined
    at metadataElastalertHandler (/opt/elastalert-server/src/handlers/metadata/get.js:122:12)
    at processTicksAndRejections (node:internal/process/task_queues:93:5)

[nsano-rururu]

Please use the one that does not have any problem until the fixed version is released.
If you are not using an SSL certificate, you will not have any problems.
It is unconfirmed whether it is a problem that occurs only with SSL self-signed certificate

[nsano-rururu]

We plan to take the following actions
https://stackoverflow.com/questions/51363855/how-to-configure-axios-to-use-ssl-certificate

[nsano-rururu]

@S733

By the way, is the SSL certificate a self-signed certificate or a legitimate certificate? This is a confirmation for wanting to confirm in the same environment before and after the program modification.

[nsano-rururu]

Scheduled to be fixed

src/common/elasticsearch_client.js

before

const result = await axios.get(`${scheme}://${auth}${config.get('es_host')}:${config.get('es_port')}`);

after

const agent  = {};

if (config.get('es_ssl')) {
  agent.rejectUnauthorized = false;

  if (config.get('es_ca_certs')) {
    agent.ca = fs.readFileSync(config.get('es_ca_certs'));
  }
  if (config.get('es_client_cert')) {
    agent.cert = fs.readFileSync(config.get('es_client_cert'));
  }
  if (config.get('es_client_key')) {
    agent.key = fs.readFileSync(config.get('es_client_key'));
  }
}

const https = require('https');
const httpsAgent = new https.Agent(agent);
const result = await axios.get(`${scheme}://${auth}${config.get('es_host')}:${config.get('es_port')}`, { httpsAgent });

[S733]

@nsano-rururu thanks for the reply. I'm using a self signed ssl certificate. The issue started after I updated to the latest version, I have reverted to the old v20200831.

[nsano-rururu]

@S733

The modified docker image has been uploaded. Please confirm.
https://hub.docker.com/r/praecoapp/elastalert-server

[S733]

@nsano-rururu thanks working fine after the update.