render.php
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render.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
			*/
			function phutil_render_tag($tag, array $attributes = array(), $content = null) {

			if (!empty($attributes['href'])) {

			// This might be a URI object, so cast it to a string.
			$href = (string)$attributes['href'];

			// Block 'javascript:' hrefs at the tag level: no well-designed application
			// should ever use them, and they are a potent attack vector. This function
			// is deep in the core and performance sensitive, so skip the relatively
			// expensive preg_match() call if the initial character is '/' (this is the
			// case with essentially every URI Phabricator renders).
			if (isset($href[0]) &&
			($href[0] != '/') &&
			preg_match('/^\s*javascript:/i', $href)) {
			throw new Exception(
			"Attempting to render a tag with an 'href' attribute that begins ".
			"with 'javascript:'. This is either a serious security concern or a ".
			"serious architecture concern. Seek urgent remedy.");
			}
			}

			foreach ($attributes as $k => $v) {
			if ($v === null) {
			continue;
			}
			$v = phutil_escape_html($v);
			$attributes[$k] = ' '.$k.'="'.$v.'"';
			}

			$attributes = implode('', $attributes);

			if ($content === null) {
			return '<'.$tag.$attributes.' />';
			} else {
			return '<'.$tag.$attributes.'>'.$content.'</'.$tag.'>';
			}
			}

			/**
			* @group markup
			*/
			function phutil_escape_html($string) {
			return htmlspecialchars($string, ENT_QUOTES, 'UTF-8');
			}

			/**
			* Format a HTML code. This function behaves like sprintf(), except that all
			* the normal conversions (like %s) will be properly escaped.
			*
			* @group markup
			*/
			function hsprintf($html/, ... /) {
			$args = func_get_args();
			array_shift($args);
			return vsprintf($html, array_map('phutil_escape_html', $args));
			}

			/**
			* @group markup
			*/
			function phutil_escape_uri($string) {
			return rawurlencode($string);
			}

libphutil/src/markup/render.php03658b123142production

render.phpView Options

libphutil/src/markup/render.php
03658b123142production

render.php
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