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PhabricatorAuthSSHKeyRevokeController.php
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			<?php

			final class PhabricatorAuthSSHKeyRevokeController
			extends PhabricatorAuthSSHKeyController {

			public function handleRequest(AphrontRequest $request) {
			$viewer = $this->getViewer();

			$key = id(new PhabricatorAuthSSHKeyQuery())
			->setViewer($viewer)
			->withIDs(array($request->getURIData('id')))
			->requireCapabilities(
			array(
			PhabricatorPolicyCapability::CAN_VIEW,
			PhabricatorPolicyCapability::CAN_EDIT,
			))
			->executeOne();
			if (!$key) {
			return new Aphront404Response();
			}

			$cancel_uri = $key->getURI();

			$token = id(new PhabricatorAuthSessionEngine())->requireHighSecuritySession(
			$viewer,
			$request,
			$cancel_uri);

			if ($request->isFormPost()) {
			$xactions = array();

			$xactions[] = id(new PhabricatorAuthSSHKeyTransaction())
			->setTransactionType(PhabricatorAuthSSHKeyTransaction::TYPE_DEACTIVATE)
			->setNewValue(true);

			id(new PhabricatorAuthSSHKeyEditor())
			->setActor($viewer)
			->setContentSourceFromRequest($request)
			->setContinueOnNoEffect(true)
			->setContinueOnMissingFields(true)
			->applyTransactions($key, $xactions);

			return id(new AphrontRedirectResponse())->setURI($cancel_uri);
			}

			$name = phutil_tag('strong', array(), $key->getName());

			return $this->newDialog()
			->setTitle(pht('Revoke SSH Public Key'))
			->appendParagraph(
			pht(
			'The key "%s" will be permanently revoked, and you will no '.
			'longer be able to use the corresponding private key to '.
			'authenticate.',
			$name))
			->addSubmitButton(pht('Revoke Public Key'))
			->addCancelButton($cancel_uri);
			}

			}