PassphraseSSHKey.php
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	<?php

	final class PassphraseSSHKey extends PassphraseAbstractKey {

	private $keyFile;

	public static function loadFromPHID($phid, PhabricatorUser $viewer) {
	$key = new PassphraseSSHKey();
	return $key->loadAndValidateFromPHID(
	$phid,
	$viewer,
	PassphraseCredentialTypeSSHPrivateKey::PROVIDES_TYPE);
	}

	public function getKeyfileEnvelope() {
	$credential = $this->requireCredential();

	$text_type = PassphraseCredentialTypeSSHPrivateKeyText::CREDENTIAL_TYPE;
	if ($credential->getCredentialType() == $text_type) {
	// If the credential stores key text, write it out to a temporary file
	// so we can pass it to `ssh`.
	if (!$this->keyFile) {
	$temporary_file = new TempFile('passphrase-ssh-key');

	Filesystem::changePermissions($temporary_file, 0600);

	Filesystem::writeFile(
	$temporary_file,
	$credential->getSecret()->openEnvelope());

	$this->keyFile = $temporary_file;
	}

	return new PhutilOpaqueEnvelope((string)$this->keyFile);
	}

	return $credential->getSecret();
	}

	}