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LICENSE.TXT 0000644 00000002536 15235534332 0006242 0 ustar 00
Emogrifier is provided under the terms of the MIT license:
1: http://www.opensource.org/licenses/mit-license.php
2: http://en.wikipedia.org/wiki/MIT_License
=============================================================================
THE EMOGRIFIER LICENSE
Copyright (c) 2008-2009 Pelago (http://www.pelagodesign.com/)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE. emogrifier.php 0000644 00000027534 15235534332 0007425 0 ustar 00 <?php
defined('_JEXEC') or die('Restricted access');
/*
UPDATES
2008-08-10 Fixed CSS comment stripping regex to add PCRE_DOTALL (changed from '/\/\*.*\*\//U' to '/\/\*.*\*\//sU')
2008-08-18 Added lines instructing DOMDocument to attempt to normalize HTML before processing
2008-10-20 Fixed bug with bad variable name... Thanks Thomas!
2008-03-02 Added licensing terms under the MIT License
Only remove unprocessable HTML tags if they exist in the array
2009-06-03 Normalize existing CSS (style) attributes in the HTML before we process the CSS.
Made it so that the display:none stripper doesn't require a trailing semi-colon.
2009-08-13 Added support for subset class values (e.g. "p.class1.class2").
Added better protection for bad css attributes.
Fixed support for HTML entities.
2009-08-17 Fixed CSS selector processing so that selectors are processed by precedence/specificity, and not just in order.
2009-10-29 Fixed so that selectors appearing later in the CSS will have precedence over identical selectors appearing earlier.
2009-11-04 Explicitly declared static functions static to get rid of E_STRICT notices.
2010-05-18 Fixed bug where full url filenames with protocols wouldn't get split improperly when we explode on ':'... Thanks Mark!
Added two new attribute selectors
2010-06-16 Added static caching for less processing overhead in situations where multiple emogrification takes place
2010-07-26 Fixed bug where '0' values were getting discarded because of php's empty() function... Thanks Scott!
2010-09-03 Added checks to invisible node removal to ensure that we don't try to remove non-existent child nodes of parents that have already been deleted
*/
class acymailingEmogrifier{
private $html = '';
private $css = '';
private $unprocessableHTMLTags = array('wbr');
public function __construct($html = '', $css = ''){
$this->html = $html;
$this->css = $css;
}
public function setHTML($html = ''){ $this->html = $html; }
public function setCSS($css = ''){ $this->css = $css; }
// there are some HTML tags that DOMDocument cannot process, and will throw an error if it encounters them.
// these functions allow you to add/remove them if necessary.
// it only strips them from the code (does not remove actual nodes).
public function addUnprocessableHTMLTag($tag){ $this->unprocessableHTMLTags[] = $tag; }
public function removeUnprocessableHTMLTag($tag){
if(($key = array_search($tag, $this->unprocessableHTMLTags)) !== false)
unset($this->unprocessableHTMLTags[$key]);
}
public static function strtolower($matches){
return strtolower($matches[0]);
}
// applies the CSS you submit to the html you submit. places the css inline
public function emogrify(){
$body = $this->html;
// process the CSS here, turning the CSS style blocks into inline css
if(count($this->unprocessableHTMLTags)){
$unprocessableHTMLTags = implode('|', $this->unprocessableHTMLTags);
$body = preg_replace("/<($unprocessableHTMLTags)[^>]*>/i", '', $body);
}
//$encoding = mb_detect_encoding($body);
$encoding = 'UTF-8';
$body = mb_convert_encoding($body, 'HTML-ENTITIES', $encoding);
$xmldoc = @ new DOMDocument;
if(!is_object($xmldoc) || !method_exists($xmldoc, 'loadHTML')) return $this->html;
$xmldoc->encoding = $encoding;
$xmldoc->strictErrorChecking = false;
$xmldoc->formatOutput = true;
//ACYBA MODIFICATION : let's avoid some warnings
//Disable the loadHTML function errors which may crash some servers.
if(function_exists('libxml_use_internal_errors')) libxml_use_internal_errors(true);
@$xmldoc->loadHTML($body);
$xmldoc->normalizeDocument();
$xpath = new DOMXPath($xmldoc);
// before be begin processing the CSS file, parse the document and normalize all existing CSS attributes (changes 'DISPLAY: none' to 'display: none');
// we wouldn't have to do this if DOMXPath supported XPath 2.0.
$nodes = @$xpath->query('//'.'*[@style]');
if($nodes->length > 0) foreach($nodes as $node){
$node->setAttribute('style', preg_replace_callback('/[A-z\-]+(?=\:)/S', array($this, 'strtolower'), $node->getAttribute('style')));
}
// get rid of css comment code
$re_commentCSS = '/\/\*.*\*\//sU';
$css = preg_replace($re_commentCSS, '', $this->css);
static $csscache = array();
$csskey = md5($css);
if(!isset($csscache[$csskey])){
// process the CSS file for selectors and definitions
$re_CSS = '/^\s*([^{]+){([^}]+)}/mis';
preg_match_all($re_CSS, $css, $matches);
$all_selectors = array();
foreach($matches[1] as $key => $selectorString){
// if there is a blank definition, skip
if(!strlen(trim($matches[2][$key]))) continue;
// else split by commas and duplicate attributes so we can sort by selector precedence
$selectors = explode(',', $selectorString);
foreach($selectors as $selector){
// don't process pseudo-classes
if(strpos($selector, ':') !== false) continue;
$all_selectors[] = array(
'selector' => $selector,
'attributes' => $matches[2][$key],
'index' => $key, // keep track of where it appears in the file, since order is important
);
}
}
// now sort the selectors by precedence
usort($all_selectors, array('self', 'sortBySelectorPrecedence'));
$csscache[$csskey] = $all_selectors;
}
for($a = count($csscache[$csskey]) - 1; $a >= 0; $a--){
// query the body for the xpath selector
$nodes = @$xpath->query($this->translateCSStoXpath(trim($csscache[$csskey][$a]['selector'])));
if(empty($nodes)) continue;
foreach($nodes as $node){
// if it has a style attribute, get it, process it, and append (overwrite) new stuff
if($node->hasAttribute('style')){
// break it up into an associative array
$oldStyleArr = $this->cssStyleDefinitionToArray($node->getAttribute('style'));
$newStyleArr = $this->cssStyleDefinitionToArray($csscache[$csskey][$a]['attributes']);
// new styles overwrite the old styles (not technically accurate, but close enough)
//Changed by Acyba, we don't overwrite the old styles, we keep them and add only the new ones
//$combinedArr = array_merge($oldStyleArr,$newStyleArr);
$combinedArr = array_merge($newStyleArr, $oldStyleArr);
$style = '';
foreach($combinedArr as $k => $v) $style .= (strtolower($k).':'.$v.';');
}
else{
// otherwise create a new style
$style = trim($csscache[$csskey][$a]['attributes']);
}
$node->setAttribute('style', $style);
}
}
//Adrien : we don't need that... it removed display:none elements from the Newsletter, we may need them with media query
// This removes styles from your email that contain display:none. You could comment these out if you want.
//$nodes = $xpath->query('//'.'*[contains(translate(@style," ",""),"display:none")]');
// the checks on parentNode and is_callable below are there to ensure that if we've deleted the parent node,
// we don't try to call removeChild on a nonexistent child node
//if ($nodes->length > 0) foreach ($nodes as $node) if ($node->parentNode && is_callable(array($node->parentNode,'removeChild'))) $node->parentNode->removeChild($node);
return $this->fixCompatibility($xmldoc->saveHTML());
}
private static function sortBySelectorPrecedence($a, $b){
$precedenceA = self::getCSSSelectorPrecedence($a['selector']);
$precedenceB = self::getCSSSelectorPrecedence($b['selector']);
// we want these sorted ascendingly so selectors with lesser precedence get processed first and
// selectors with greater precedence get sorted last
return ($precedenceA == $precedenceB) ? ($a['index'] < $b['index'] ? -1 : 1) : ($precedenceA < $precedenceB ? -1 : 1);
}
private static function getCSSSelectorPrecedence($selector){
static $selectorcache = array();
$selectorkey = md5($selector);
if(!isset($selectorcache[$selectorkey])){
$precedence = 0;
$value = 100;
$search = array('\#', '\.', ''); // ids: worth 100, classes: worth 10, elements: worth 1
foreach($search as $s){
if(trim($selector == '')) break;
$num = 0;
$selector = preg_replace('/'.$s.'\w+/', '', $selector, -1, $num);
$precedence += ($value * $num);
$value /= 10;
}
$selectorcache[$selectorkey] = $precedence;
}
return $selectorcache[$selectorkey];
}
// right now we support all CSS 1 selectors and /some/ CSS2/3 selectors.
// http://plasmasturm.org/log/444/
private function translateCSStoXpath($css_selector){
$css_selector = trim($css_selector);
static $xpathcache = array();
$xpathkey = md5($css_selector);
if(!isset($xpathcache[$xpathkey])){
// returns an Xpath selector
$search = array(
'/\s+>\s+/', // Matches any F element that is a child of an element E.
'/(\w+)\s+\+\s+(\w+)/', // Matches any F element that is a child of an element E.
'/\s+/', // Matches any F element that is a descendant of an E element.
'/(\w)\[(\w+)\]/', // Matches element with attribute
'/(\w)\[(\w+)\=[\'"]?(\w+)[\'"]?\]/'/*, // Matches element with EXACT attribute
'/(\w+)?\#([\w\-]+)/e', // Matches id attributes
'/(\w+|\*)?((\.[\w\-]+)+)/e', // Matches class attributes
*/);
$replace = array(
'/',
'\\1/following-sibling::*[1]/self::\\2',
'//',
'\\1[@\\2]',
'\\1[@\\2="\\3"]'/*,
"(strlen('\\1') ? '\\1' : '*').'[@id=\"\\2\"]'",
"(strlen('\\1') ? '\\1' : '*').'[contains(concat(\" \",@class,\" \"),concat(\" \",\"'.implode('\",\" \"))][contains(concat(\" \",@class,\" \"),concat(\" \",\"',explode('.',substr('\\2',1))).'\",\" \"))]'",
*/);
// The preg_replace doesn't handle the "e" modifier anymore in PHP 7+, use preg_replace_callback instead
$value = preg_replace($search, $replace, $css_selector);
$value = preg_replace_callback('/(\w+)?\#([\w\-]+)/',
function($matches){
return (strlen($matches[1]) ? $matches[1] : '*').'[@id="'.$matches[2].'"]';
}
, $value);
$value = preg_replace_callback('/(\w+|\*)?((\.[\w\-]+)+)/',
function($matches){
$result = (strlen($matches[1]) ? $matches[1] : '*');
$result .= '[contains(concat(" ",@class," "),concat(" ","';
$result .= implode('"," "))][contains(concat(" ",@class," "),concat(" ","', explode('.', substr($matches[2],1)));
$result .= '"," "))]';
return $result;
}
, $value);
$xpathcache[$xpathkey] = '//'.$value;
}
return $xpathcache[$xpathkey];
}
private function cssStyleDefinitionToArray($style){
$definitions = explode(';', $style);
$retArr = array();
foreach($definitions as $def){
if(empty($def) || strpos($def, ':') === false) continue;
list($key, $value) = explode(':', $def, 2);
if(empty($key) || strlen(trim($value)) === 0) continue;
$retArr[trim($key)] = trim($value);
}
return $retArr;
}
private function fixCompatibility($text){
$replace = array();
$replace['#<br>#Ui'] = '<br />';
$replace['#<img([^>]*[^/])>#Ui'] = '<img$1 />';
//We replace the header properly as it may display a non valid DOCTYPE...
$replace['#<\!DOCTYPE[^>]*>#Usi'] = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">';
$body = preg_replace(array_keys($replace), $replace, $text);
//Just in case of...
if(empty($body)) $body = $text;
//Be careful with that line!
//$body = mb_convert_encoding($body, 'UTF-8', 'HTML-ENTITIES');
//Debug informations...
//echo '<textarea cols="100" rows="10">'.htmlentities($text).'</textarea>';
//echo '<textarea cols="100" rows="10">'.htmlentities($body).'</textarea>';
return $body;
}
}
//Just in case of... we used to call it Emogrifier so we don't want to break plugins using this class via the AcyMailing files...
if(!class_exists('Emogrifier')){
class Emogrifier extends acymailingEmogrifier{
}
} index.html 0000644 00000000054 15235534332 0006545 0 ustar 00 <html><body bgcolor="#FFFFFF"></body></html>