WP_Filesystem_SSH2::connect(): bool

121	public function connect() {122		if ( ! $this->keys ) {123			$this->link = @ssh2_connect( $this->options['hostname'], $this->options['port'] );124		} else {125			$this->link = @ssh2_connect( $this->options['hostname'], $this->options['port'], $this->options['hostkey'] );126		}127 128		if ( ! $this->link ) {129			$this->errors->add(130				'connect',131				sprintf(132					/* translators: %s: hostname:port */133					__( 'Failed to connect to SSH2 Server %s' ),134					$this->options['hostname'] . ':' . $this->options['port']135				)136			);137 138			return false;139		}140 141		if ( ! $this->keys ) {142			if ( ! @ssh2_auth_password( $this->link, $this->options['username'], $this->options['password'] ) ) {143				$this->errors->add(144					'auth',145					sprintf(146						/* translators: %s: Username. */147						__( 'Username/Password incorrect for %s' ),148						$this->options['username']149					)150				);151 152				return false;153			}154		} else {155			if ( ! @ssh2_auth_pubkey_file( $this->link, $this->options['username'], $this->options['public_key'], $this->options['private_key'], $this->options['password'] ) ) {156				$this->errors->add(157					'auth',158					sprintf(159						/* translators: %s: Username. */160						__( 'Public and Private keys incorrect for %s' ),161						$this->options['username']162					)163				);164 165				return false;166			}167		}168 169		$this->sftp_link = ssh2_sftp( $this->link );170 171		if ( ! $this->sftp_link ) {172			$this->errors->add(173				'connect',174				sprintf(175					/* translators: %s: hostname:port */176					__( 'Failed to initialize a SFTP subsystem session with the SSH2 Server %s' ),177					$this->options['hostname'] . ':' . $this->options['port']178				)179			);180 181			return false;182		}183 184		return true;185	}