PhabricatorRateLimitRequestExceptionHandler.php
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	<?php

	final class PhabricatorRateLimitRequestExceptionHandler
	extends PhabricatorRequestExceptionHandler {

	public function getRequestExceptionHandlerPriority() {
	return 300000;
	}

	public function getRequestExceptionHandlerDescription() {
	return pht(
	'Handles action rate limiting exceptions which occur when a user '.
	'does something too frequently.');
	}

	public function canHandleRequestThrowable(
	AphrontRequest $request,
	$throwable) {

	if (!$this->isPhabricatorSite($request)) {
	return false;
	}

	return ($throwable instanceof PhabricatorSystemActionRateLimitException);
	}

	public function handleRequestThrowable(
	AphrontRequest $request,
	$throwable) {

	$viewer = $this->getViewer($request);

	return id(new AphrontDialogView())
	->setTitle(pht('Slow Down!'))
	->setUser($viewer)
	->setErrors(array(pht('You are being rate limited.')))
	->appendParagraph($throwable->getMessage())
	->appendParagraph($throwable->getRateExplanation())
	->addCancelButton('/', pht('Okaaaaaaaaaaaaaay...'));
	}

	}