node-red-node-email/node_modules/node-pop3/lib/Connection.cjs.map

Node-RED nodes to send and receive simple emails.

{"version":3,"file":"Connection.cjs","names":["_net","require","_tls2","_interopRequireDefault","_events","_stream","_constant","obj","__esModule","default","Pop3Connection","EventEmitter","constructor","host","port","tls","timeout","tlsOptions","servername","_socket","_command","_updateStream","Readable","read","_pushStream","buffer","TERMINATOR_BUFFER_ARRAY","some","_buffer","equals","_endStream","endBuffer","subarray","TERMINATOR_BUFFER","push","err","emit","connect","socket","Socket","setKeepAlive","Promise","resolve","reject","setTimeout","Error","eventName","listeners","length","end","options","_tls","on","command","firstLineEndIndex","indexOf","CRLF_BUFFER","infoBuffer","commandName","msgNumber","split","stream","MULTI_LINE_COMMAND_NAME","includes","MAYBE_MULTI_LINE_COMMAND_NAME","bodyBuffer","toString","once","args","join","rejectFn","info","removeListener","write","CRLF","_default","exports","module"],"sources":["../src/Connection.js"],"sourcesContent":["import {Socket} from 'net';\nimport _tls from 'tls';\nimport {EventEmitter} from 'events';\nimport {Readable} from 'stream';\n\nimport {\n  CRLF,\n  CRLF_BUFFER,\n  TERMINATOR_BUFFER,\n  TERMINATOR_BUFFER_ARRAY,\n  MULTI_LINE_COMMAND_NAME,\n  MAYBE_MULTI_LINE_COMMAND_NAME\n} from './constant.js';\n\n/**\n * @typedef {number} Integer\n */\n\n/* eslint-disable unicorn/prefer-event-target -- Should replace for browser */\n/**\n *\n */\nclass Pop3Connection extends EventEmitter {\n  /* eslint-enable unicorn/prefer-event-target -- Should replace for browser */\n  /**\n   * @param {{\n  *   host: string,\n  *   port?: Integer,\n  *   tls?: boolean,\n  *   timeout?: Integer,\n  *   tlsOptions?: import('tls').TlsOptions,\n  *   servername?: string\n  * }} cfg\n  */\n  constructor ({\n    host,\n    port,\n    tls,\n    timeout,\n    tlsOptions,\n    servername\n  }) {\n    super();\n    this.host = host;\n    this.port = port || (tls ? 995 : 110);\n    this.tls = tls;\n    this.timeout = timeout;\n    this._socket = null;\n    this._stream = null;\n    this._command = '';\n    this.tlsOptions = tlsOptions || {};\n    this.servername = servername || host;\n  }\n\n  /**\n   * @returns {Readable}\n   */\n  _updateStream () {\n    this._stream = new Readable({\n      read () {\n        //\n      }\n    });\n    return this._stream;\n  }\n\n  /**\n   * @param {Buffer} buffer\n   * @returns {void}\n   */\n  _pushStream (buffer) {\n    if (TERMINATOR_BUFFER_ARRAY.some((_buffer) => _buffer.equals(buffer))) {\n      this._endStream();\n      return;\n    }\n    const endBuffer = buffer.subarray(-5);\n    if (endBuffer.equals(TERMINATOR_BUFFER)) {\n      /** @type {Readable} */ (this._stream).push(buffer.subarray(0, -5));\n      this._endStream();\n      return;\n    }\n    /** @type {Readable} */ (this._stream).push(buffer);\n  }\n\n  /**\n   * @param {Error} [err]\n   * @returns {void}\n   */\n  _endStream (err) {\n    if (this._stream) {\n      this._stream.push(null);\n    }\n    this._stream = null;\n    this.emit('end', err);\n  }\n\n  /**\n   * @returns {Promise<void>}\n   */\n  connect () {\n    const {host, port, tlsOptions, servername} = this;\n    const socket = new Socket();\n    socket.setKeepAlive(true);\n    // eslint-disable-next-line promise/avoid-new -- Our own API\n    return new Promise((\n      /** @type {(val?: any) => void} */\n      resolve,\n      reject\n    ) => {\n      if (typeof this.timeout !== 'undefined') {\n        socket.setTimeout(this.timeout, () => {\n          const err = /** @type {Error & {eventName: \"timeout\"}} */ (\n            new Error('timeout')\n          );\n          err.eventName = 'timeout';\n          reject(err);\n          if (this.listeners('end').length) {\n            this.emit('end', err);\n          }\n          if (this.listeners('error').length) {\n            this.emit('error', err);\n          }\n          /** @type {import('tls').TLSSocket} */ (this._socket).end();\n          this._socket = null;\n        });\n      }\n      if (this.tls) {\n        const options = {host, port, socket, servername, ...tlsOptions};\n        // @ts-expect-error Works\n        this._socket = _tls.connect(options);\n      } else {\n        this._socket = socket;\n      }\n\n      this._socket.on(\n        'data',\n        /**\n         * @param {Buffer} buffer\n         * @returns {void}\n         */\n        (buffer) => {\n          if (this._stream) {\n            this._pushStream(buffer);\n            return;\n          }\n          if (buffer[0] === 45) { // '-'\n            const err =\n              /**\n               * @type {Error & {eventName: \"error\", command: string|undefined}}\n               */ (\n                new Error(buffer.subarray(5, -2))\n              );\n            err.eventName = 'error';\n            err.command = this._command;\n            this.emit('error', err);\n            return;\n          }\n          if (buffer[0] === 43) { // '+'\n            const firstLineEndIndex = buffer.indexOf(CRLF_BUFFER);\n            const infoBuffer = buffer.subarray(4, firstLineEndIndex);\n            const [commandName, msgNumber] = (this._command || '').split(' ');\n            let stream = null;\n            if (MULTI_LINE_COMMAND_NAME.includes(commandName) ||\n                (!msgNumber &&\n                MAYBE_MULTI_LINE_COMMAND_NAME.includes(commandName))) {\n              this._updateStream();\n              stream = this._stream;\n              const bodyBuffer = buffer.subarray(firstLineEndIndex + 2);\n              if (bodyBuffer[0]) {\n                this._pushStream(bodyBuffer);\n              }\n            }\n            this.emit('response', infoBuffer.toString(), stream);\n            resolve();\n            return;\n          }\n          const err =\n            /**\n             * @type {Error & {eventName: \"bad-server-response\"}}\n             */ (\n              new Error('Unexpected response')\n            );\n          err.eventName = 'bad-server-response';\n          reject(err);\n        }\n      );\n      this._socket.on('error', (err) => {\n        err.eventName = 'error';\n        if (this._stream) {\n          this.emit('error', err);\n          return;\n        }\n        reject(err);\n        this._socket = null;\n      });\n      this._socket.once('close', () => {\n        const err = /** @type {Error & {eventName: \"close\"}} */ (\n          new Error('close')\n        );\n        err.eventName = 'close';\n        reject(err);\n        this._socket = null;\n      });\n      this._socket.once('end', () => {\n        const err = /** @type {Error & {eventName: \"end\"}} */ (\n          new Error('end')\n        );\n        err.eventName = 'end';\n        reject(err);\n        this._socket = null;\n      });\n      socket.connect({\n        host,\n        port\n      });\n    });\n  }\n\n  /**\n   * @param {...(string|Integer)} args\n   * @throws {Error}\n   * @returns {Promise<[string, Readable]>}\n   */\n  async command (...args) {\n    this._command = args.join(' ');\n    if (!this._socket) {\n      throw new Error('no-socket');\n    }\n    // eslint-disable-next-line promise/avoid-new -- Our own API\n    await new Promise((\n      /** @type {(value?: any) => void} */\n      resolve,\n      reject\n    ) => {\n      if (!this._stream) {\n        resolve();\n        return;\n      }\n      this.once('error', (err) => {\n        reject(err);\n      });\n      this.once('end', (err) => {\n        return err ? reject(err) : resolve();\n      });\n    });\n\n    // eslint-disable-next-line promise/avoid-new -- Our own API\n    return new Promise((resolve, reject) => {\n      /**\n       * @param {Error} err\n       */\n      const rejectFn = (err) => reject(err);\n      this.once('error', rejectFn);\n      this.once('response', (info, stream) => {\n        this.removeListener('error', rejectFn);\n        resolve([info, stream]);\n      });\n      if (!this._socket) {\n        reject(new Error('no-socket'));\n      }\n      /** @type {Socket} */ (\n        this._socket\n      ).write(`${this._command}${CRLF}`, 'utf8');\n    });\n  }\n}\n\nexport default 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