diff options
Diffstat (limited to 'program/lib')
| -rw-r--r-- | program/lib/washtml.php | 43 |
1 files changed, 25 insertions, 18 deletions
diff --git a/program/lib/washtml.php b/program/lib/washtml.php index fbbfa43c9..e19fdf0aa 100644 --- a/program/lib/washtml.php +++ b/program/lib/washtml.php @@ -73,6 +73,7 @@ * Roundcube Changes: * - added $block_elements * - changed $ignore_elements behaviour + * - added RFC2397 support */ class washtml @@ -131,31 +132,34 @@ class washtml private function wash_style($style) { $s = ''; - foreach(explode(';', $style) as $declaration) { - if(preg_match('/^\s*([a-z\-]+)\s*:\s*(.*)\s*$/i', $declaration, $match)) { + foreach (explode(';', $style) as $declaration) { + if (preg_match('/^\s*([a-z\-]+)\s*:\s*(.*)\s*$/i', $declaration, $match)) { $cssid = $match[1]; $str = $match[2]; $value = ''; - while(sizeof($str) > 0 && + while (sizeof($str) > 0 && preg_match('/^(url\(\s*[\'"]?([^\'"\)]*)[\'"]?\s*\)'./*1,2*/ '|rgb\(\s*[0-9]+\s*,\s*[0-9]+\s*,\s*[0-9]+\s*\)'. '|-?[0-9.]+\s*(em|ex|px|cm|mm|in|pt|pc|deg|rad|grad|ms|s|hz|khz|%)?'. '|#[0-9a-f]{3,6}|[a-z0-9\-]+'. ')\s*/i', $str, $match)) { - if($match[2]) { - if($src = $this->config['cid_map'][$match[2]]) - $value .= ' url(\''.htmlspecialchars($src, ENT_QUOTES) . '\')'; - else if(preg_match('/^(http|https|ftp):.*$/i', $match[2], $url)) { - if($this->config['allow_remote']) - $value .= ' url(\''.htmlspecialchars($url[0], ENT_QUOTES).'\')'; + if ($match[2]) { + if ($src = $this->config['cid_map'][$match[2]]) + $value .= ' url('.htmlspecialchars($src, ENT_QUOTES) . ')'; + else if (preg_match('/^(http|https|ftp):.*$/i', $match[2], $url)) { + if ($this->config['allow_remote']) + $value .= ' url('.htmlspecialchars($url[0], ENT_QUOTES).')'; else $this->extlinks = true; } - } else if($match[0] != 'url' && $match[0] != 'rbg')//whitelist ? + else if (preg_match('/^data:.+/i', $url)) { // RFC2397 + $value .= ' url('.htmlspecialchars($url, ENT_QUOTES).')'; + } + } else if ($match[0] != 'url' && $match[0] != 'rbg') //whitelist ? $value .= ' ' . $match[0]; $str = substr($str, strlen($match[0])); } - if($value) + if ($value) $s .= ($s?' ':'') . $cssid . ':' . $value . ';'; } } @@ -167,20 +171,20 @@ class washtml $t = ''; $washed; - foreach($node->attributes as $key => $plop) { + foreach ($node->attributes as $key => $plop) { $key = strtolower($key); $value = $node->getAttribute($key); - if(isset($this->_html_attribs[$key]) || + if (isset($this->_html_attribs[$key]) || ($key == 'href' && preg_match('/^(http:|https:|ftp:|mailto:|#).+/i', $value))) $t .= ' ' . $key . '="' . htmlspecialchars($value, ENT_QUOTES) . '"'; - else if($key == 'style' && ($style = $this->wash_style($value))) + else if ($key == 'style' && ($style = $this->wash_style($value))) $t .= ' style="' . $style . '"'; - else if($key == 'background' || ($key == 'src' && strtolower($node->tagName) == 'img')) { //check tagName anyway - if($src = $this->config['cid_map'][$value]) { + else if ($key == 'background' || ($key == 'src' && strtolower($node->tagName) == 'img')) { //check tagName anyway + if ($src = $this->config['cid_map'][$value]) { $t .= ' ' . $key . '="' . htmlspecialchars($src, ENT_QUOTES) . '"'; } - else if(preg_match('/^(http|https|ftp):.+/i', $value)) { - if($this->config['allow_remote']) + else if (preg_match('/^(http|https|ftp):.+/i', $value)) { + if ($this->config['allow_remote']) $t .= ' ' . $key . '="' . htmlspecialchars($value, ENT_QUOTES) . '"'; else { $this->extlinks = true; @@ -188,6 +192,9 @@ class washtml $t .= ' ' . $key . '="' . htmlspecialchars($this->config['blocked_src'], ENT_QUOTES) . '"'; } } + else if (preg_match('/^data:.+/i', $value)) { // RFC2397 + $t .= ' ' . $key . '="' . htmlspecialchars($value, ENT_QUOTES) . '"'; + } } else $washed .= ($washed?' ':'') . $key; } |