PhabricatorRemarkupRuleProxyImage.php
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PhabricatorRemarkupRuleProxyImage.php
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			<?php

			/*
			* Copyright 2012 Facebook, Inc.
			*
			* Licensed under the Apache License, Version 2.0 (the "License");
			* you may not use this file except in compliance with the License.
			* You may obtain a copy of the License at
			*
			* http://www.apache.org/licenses/LICENSE-2.0
			*
			* Unless required by applicable law or agreed to in writing, software
			* distributed under the License is distributed on an "AS IS" BASIS,
			* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
			* See the License for the specific language governing permissions and
			* limitations under the License.
			*/

			/**
			* @group markup
			*/
			final class PhabricatorRemarkupRuleProxyImage
			extends PhutilRemarkupRule {

			public function apply($text) {

			$filetypes = '\.(?:jpe?g\|png\|gif)';

			$text = preg_replace_callback(
			'@[<](\w{3,}://.+?'.$filetypes.')[>]@',
			array($this, 'markupProxyImage'),
			$text);

			$text = preg_replace_callback(
			'@(?<=^\|\s)(\w{3,}://\S+'.$filetypes.')(?=\s\|$)@',
			array($this, 'markupProxyImage'),
			$text);

			return $text;
			}

			public function markupProxyImage($matches) {

			$uri = PhabricatorFileProxyImage::getProxyImageURI($matches[1]);

			return $this->getEngine()->storeText(
			phutil_render_tag(
			'a',
			array(
			'href' => $uri,
			'target' => '_blank',
			),
			phutil_render_tag(
			'img',
			array(
			'src' => $uri,
			'class' => 'remarkup-proxy-image',
			))));
			}

			}