HTTPFutureHTTPResponseStatus.php
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	<?php

	final class HTTPFutureHTTPResponseStatus extends HTTPFutureResponseStatus {

	private $excerpt;
	private $expect;

	public function __construct(
	$status_code,
	$body,
	array $headers,
	$expect = null) {

	// NOTE: Avoiding PhutilUTF8StringTruncator here because this isn't lazy
	// and responses may be large.
	if (strlen($body) > 512) {
	$excerpt = substr($body, 0, 512).'...';
	} else {
	$excerpt = $body;
	}

	$content_type = BaseHTTPFuture::getHeader($headers, 'Content-Type');
	$match = null;
	if (preg_match('/;\s*charset=([^;]+)/', $content_type, $match)) {
	$encoding = trim($match[1], "\"'");
	try {
	$excerpt = phutil_utf8_convert($excerpt, 'UTF-8', $encoding);
	} catch (Exception $ex) {
	}
	}

	$this->excerpt = phutil_utf8ize($excerpt);
	$this->expect = $expect;

	parent::__construct($status_code);
	}

	protected function getErrorCodeType($code) {
	return 'HTTP';
	}

	public function isError() {
	if ($this->expect === null) {
	return ($this->getStatusCode() < 200) \|\| ($this->getStatusCode() > 299);
	}

	return !in_array($this->getStatusCode(), $this->expect, true);
	}

	public function isTimeout() {
	return false;
	}

	protected function getErrorCodeDescription($code) {
	static $map = array(
	404 => 'Not Found',
	500 => 'Internal Server Error',
	);

	return idx($map, $code)."\n".$this->excerpt."\n";
	}

	}