Method signAndEncrypt

src/controller/editor.controller.js:485–551

* Encrypt, sign & encrypt, or sign only operation * @param {String} options.action - 'sign' or 'encrypt' * @param {String} options.message - body of the message * @param {String} options.keys - key data object (user id, key id, fingerprint, email and name) * @param {Array} options.attach

(options)

   * @return {Promise<String>} - message as armored block
   */
  async signAndEncrypt(options) {
    if (options.action === 'encrypt') {
      const noCache = options.noCache;
      const keyFprs = await this.getPublicKeyFprs(options.keys);
      let signKeyFpr;
      let unlockKey;
      let unlockedSignKey;
      if (options.signMsg) {
        signKeyFpr = options.signKeyFpr;
        if (!signKeyFpr) {
          const defaultKeyFpr = await getDefaultKeyFpr(this.state.keyringId);
          signKeyFpr = defaultKeyFpr;
        }
        if (!signKeyFpr) {
          throw new MvError('No private key found to sign this message.', 'NO_DEFAULT_KEY_FOUND');
        }
        unlockKey = async options => {
          options.noCache = noCache;
          options.reason = this.options.reason || 'PWD_DIALOG_REASON_SIGN';
          options.sync = !prefs.security.password_cache;
          options.key = unlockedSignKey ?? options.key;
          unlockedSignKey = await this.unlockKey(options);
          return unlockedSignKey;
        };
      }
      let data;
      let files = [];
      let encFiles = [];
      options.pgpMIME = this.pgpMIME;
      if (this.state.integration && !this.pgpMIME) {
        ({attachments: files, ...options} = options);
      }
      try {
        data = buildMail(options);
      } catch (error) {
        if (this.ports.editorCont) {
          this.ports.editorCont.emit('error-message', {error: mapError(error)});
        }
      }
      if (data === null) {
        throw new MvError('MIME building failed.');
      }
      const armored = await this.encryptMessage({
        data,
        keyFprs,
        signKeyFpr,
        unlockKey,
        noCache
      });
      if (!this.pgpMIME && files.length) {
        encFiles = await this.encryptFiles({
          files,
          keyFprs,
          signKeyFpr,
          unlockKey,
          noCache
        });
      }