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,
	PassphraseSSHPrivateKeyCredentialType::PROVIDES_TYPE);
	}

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

	$file_type = PassphraseSSHPrivateKeyFileCredentialType::CREDENTIAL_TYPE;
	if ($credential->getCredentialType() != $file_type) {
	// If the credential does not store a file, write the key text out to a
	// temporary file so we can pass it to `ssh`.
	if (!$this->keyFile) {
	$secret = $credential->getSecret();
	if (!$secret) {
	throw new Exception(
	pht(
	'Attempting to use a credential ("%s") but the credential '.
	'secret has been destroyed!',
	$credential->getMonogram()));
	}

	$temporary_file = new TempFile('passphrase-ssh-key');
	Filesystem::changePermissions($temporary_file, 0600);
	Filesystem::writeFile($temporary_file, $secret->openEnvelope());

	$this->keyFile = $temporary_file;
	}

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

	return $credential->getSecret();
	}

	}